/* ==========================================================================
   ZIHAN FAKIR - PROFESSIONAL PORTFOLIO
   High-End Modern Design System (Bento Grid, OLED Glassmorphism, Micro-Interactions)
   ========================================================================== */

@font-face {
  font-family: 'SincopaNina';
  src: url('../assets/fonts/SincopaNina.ttf') format('truetype'),
       url('../SincopaNina.ttf') format('truetype');
  font-weight: 400 900;
  font-style: normal;
  font-display: swap;
}

/* --------------------------------------------------------------------------
   1. CSS Custom Properties / Design Tokens (Dark Theme Default)
   -------------------------------------------------------------------------- */
:root,
[data-theme="dark"] {
  --font-brand: 'SincopaNina', var(--font-sans);
  --font-sans: 'Plus Jakarta Sans', 'Hind Siliguri', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Safe Area Inset Tokens (iOS Dynamic Island, Notch & Android Gesture Bars) */
  --sat: env(safe-area-inset-top, 0px);
  --sab: env(safe-area-inset-bottom, 0px);
  --sal: env(safe-area-inset-left, 0px);
  --sar: env(safe-area-inset-right, 0px);

  /* Color Palette - Dark Theme (Default: Deep Cosmic Slate & OLED) */
  --bg-body: #07090e;
  --bg-body-secondary: #0d121f;
  --bg-card: #0d121f;
  --bg-card-hover: #141c2e;
  --bg-card-solid: #111827;
  --bg-card-elevated: rgba(30, 41, 59, 0.7);
  --bg-header: rgba(7, 9, 14, 0.75);
  --bg-header-glass: linear-gradient(180deg, rgba(13, 18, 31, 0.85) 0%, rgba(7, 9, 14, 0.70) 100%);
  
  --text-main: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverse: #07090e;
  
  --border-color: rgba(255, 255, 255, 0.08);
  --border-subtle: rgba(255, 255, 255, 0.04);
  --border-hover: rgba(99, 102, 241, 0.45);
  
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-glow: rgba(99, 102, 241, 0.35);
  --primary-light: rgba(99, 102, 241, 0.12);
  --secondary: #06b6d4;
  --secondary-glow: rgba(6, 182, 212, 0.3);
  
  --accent-pink: #ec4899;
  --accent-emerald: #10b981;
  --accent-emerald-light: rgba(16, 185, 129, 0.15);
  --accent-amber: #f59e0b;
  --accent-purple: #a855f7;
  
  --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #06b6d4 100%);
  --gradient-accent: linear-gradient(135deg, #38bdf8 0%, #6366f1 50%, #d946ef 100%);
  --gradient-card: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.01) 100%);
  --gradient-glow: radial-gradient(circle at 50% 50%, rgba(99, 102, 241, 0.18), transparent 70%);

  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 6px 18px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 16px 36px rgba(0, 0, 0, 0.55);
  --shadow-glow: 0 0 35px rgba(99, 102, 241, 0.25);
  --shadow-glow-cyan: 0 0 35px rgba(6, 182, 212, 0.25);

  --spotlight-color: rgba(99, 102, 241, 0.08);

  /* Transitions */
  --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.45s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Spacing & Sizes */
  --container-max-w: 1240px;
  --header-height: 64px;
  --border-radius-xs: 6px;
  --border-radius-sm: 10px;
  --border-radius-md: 16px;
  --border-radius-lg: 24px;
  --border-radius-xl: 32px;
  --border-radius-full: 9999px;
}

/* --------------------------------------------------------------------------
   Light Theme Override (WCAG AA Compliant High Contrast)
   -------------------------------------------------------------------------- */
[data-theme="light"] {
  --bg-body: #f8fafc;
  --bg-body-secondary: #f1f5f9;
  --bg-card: rgba(255, 255, 255, 0.88);
  --bg-card-hover: #ffffff;
  --bg-card-solid: #ffffff;
  --bg-card-elevated: #ffffff;
  --bg-header: rgba(255, 255, 255, 0.80);
  --bg-header-glass: linear-gradient(180deg, rgba(255, 255, 255, 0.90) 0%, rgba(248, 250, 252, 0.75) 100%);
  
  --text-main: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --text-inverse: #f8fafc;
  
  --border-color: rgba(226, 232, 240, 0.95);
  --border-subtle: rgba(226, 232, 240, 0.6);
  --border-hover: rgba(79, 70, 229, 0.35);
  
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-glow: rgba(79, 70, 229, 0.2);
  --primary-light: rgba(79, 70, 229, 0.08);
  --secondary: #0284c7;
  --secondary-glow: rgba(2, 132, 199, 0.2);
  
  --accent-pink: #db2777;
  --accent-emerald: #059669;
  --accent-emerald-light: rgba(5, 150, 105, 0.12);
  --accent-amber: #d97706;
  --accent-purple: #9333ea;
  
  --gradient-primary: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #0284c7 100%);
  --gradient-accent: linear-gradient(135deg, #0284c7 0%, #4f46e5 50%, #c026d3 100%);
  --gradient-card: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(241, 245, 249, 0.7) 100%);
  --gradient-glow: radial-gradient(circle at 50% 50%, rgba(79, 70, 229, 0.08), transparent 70%);

  --shadow-sm: 0 2px 6px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 6px 18px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 16px 36px rgba(15, 23, 42, 0.08);
  --shadow-glow: 0 0 28px rgba(79, 70, 229, 0.12);
  --shadow-glow-cyan: 0 0 28px rgba(2, 132, 199, 0.12);

  --spotlight-color: rgba(79, 70, 229, 0.05);
}

/* Global Light Theme Component Polish (WCAG AA High Contrast) */
[data-theme="light"] .hero-turnaround-badge {
  background: rgba(217, 119, 6, 0.09);
  border-color: rgba(217, 119, 6, 0.3);
  color: #b45309;
}

[data-theme="light"] .hero-badge {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.1);
  color: var(--text-secondary);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
}

[data-theme="light"] .about-credo-badge {
  background: rgba(79, 70, 229, 0.07);
  border-color: rgba(79, 70, 229, 0.22);
  color: var(--primary);
}

[data-theme="light"] .project-badge-tag {
  background: rgba(255, 255, 255, 0.95);
  border-color: rgba(0, 0, 0, 0.12);
  color: #0f172a;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .cert-preview-badge {
  background: rgba(255, 255, 255, 0.95);
  border-color: rgba(0, 0, 0, 0.12);
  color: #0f172a;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .project-link-btn {
  background: rgba(15, 23, 42, 0.05);
  border-color: rgba(15, 23, 42, 0.12);
  color: var(--text-main);
}

[data-theme="light"] .project-link-btn:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #ffffff;
}

[data-theme="light"] .tech-tag {
  background: rgba(79, 70, 229, 0.07);
  border-color: rgba(79, 70, 229, 0.2);
  color: var(--primary);
}

[data-theme="light"] .cert-code {
  background: rgba(79, 70, 229, 0.08);
  border-color: rgba(79, 70, 229, 0.22);
  color: var(--primary);
}

[data-theme="light"] .filter-btn {
  background: var(--bg-card);
  border-color: var(--border-color);
  color: var(--text-secondary);
}

[data-theme="light"] .filter-btn:hover {
  background: var(--bg-card-hover);
  color: var(--text-main);
}

[data-theme="light"] .filter-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #ffffff;
}

[data-theme="light"] .social-link {
  background: var(--bg-card);
  border-color: var(--border-color);
  color: var(--text-secondary);
}

[data-theme="light"] .social-link:hover {
  background: var(--bg-card-hover);
  color: var(--primary);
  border-color: var(--primary);
}

/* --------------------------------------------------------------------------
   2. Reset & Global Styles
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Full Website Copy & Selection Protection */
html, body {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

/* Allow text input and cursor placement inside form inputs and textareas */
input, textarea {
  -webkit-user-select: text !important;
  -moz-user-select: text !important;
  -ms-user-select: text !important;
  user-select: text !important;
}

/* Disable drag-and-drop of imagery */
img {
  -webkit-user-drag: none;
  user-drag: none;
}

/* Clean scrollbar styling */
html, body, div, section, main, textarea, .modal-window, .ai-chat-messages {
  scrollbar-width: thin;
  scrollbar-color: rgba(99, 102, 241, 0.3) transparent;
}

::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: rgba(99, 102, 241, 0.3);
  border-radius: 9999px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 16px);
  font-size: 16px;
  overflow-x: hidden;
  width: 100%;
}

/* Lenis Smooth Scroll Configuration */
html.lenis, html.lenis body {
  height: auto;
}
.lenis.lenis-smooth {
  scroll-behavior: auto !important;
}
.lenis.lenis-smooth [data-lenis-prevent] {
  overscroll-behavior: contain;
}
.lenis.lenis-stopped {
  overflow: hidden;
}
.lenis.lenis-smooth iframe {
  pointer-events: none;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-body);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  transition: background-color var(--transition-normal), color var(--transition-normal);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body.nav-menu-open {
  overflow: hidden !important;
  touch-action: none;
}

/* Background Ambient Orbs & Modern Grid */
.bg-ambient-orb {
  position: fixed;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(120px);
  z-index: 0;
  opacity: 0.45;
  transition: opacity var(--transition-normal);
  will-change: transform;
}

.orb-1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.35) 0%, transparent 70%);
  top: -100px;
  left: -100px;
  animation: floatOrb 22s ease-in-out infinite alternate;
}

.orb-2 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.25) 0%, transparent 70%);
  top: 35%;
  right: -150px;
  animation: floatOrb 28s ease-in-out infinite alternate-reverse;
}

.orb-3 {
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, rgba(168, 85, 247, 0.22) 0%, transparent 70%);
  bottom: 5%;
  left: 10%;
  animation: floatOrb 25s ease-in-out infinite alternate;
}

/* Tech dot matrix grid background overlay */
.bg-tech-grid {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(rgba(255, 255, 255, 0.14) 1.25px, transparent 1.25px);
  background-size: 28px 28px;
  pointer-events: none;
  z-index: 0;
  opacity: 0.95;
}

[data-theme="light"] .bg-tech-grid {
  background-image: radial-gradient(rgba(15, 23, 42, 0.12) 1.25px, transparent 1.25px);
}

@keyframes floatOrb {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(40px, 30px) scale(1.08); }
  100% { transform: translate(-30px, 50px) scale(0.95); }
}

/* Accessibility Skip Link */
.skip-link {
  position: absolute;
  top: -60px;
  left: 20px;
  background: var(--primary);
  color: #ffffff;
  padding: 10px 18px;
  border-radius: var(--border-radius-sm);
  z-index: 99999;
  font-weight: 600;
  text-decoration: none;
  transition: top var(--transition-fast);
}
.skip-link:focus {
  top: 16px;
}

.container {
  width: 100%;
  max-width: var(--container-max-w);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* Typography Helpers */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-main);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

p {
  color: var(--text-secondary);
}

.gradient-text {
  background: var(--gradient-primary);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  animation: textShimmer 8s ease infinite alternate;
}

.gradient-text-accent {
  background: var(--gradient-accent);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  animation: textShimmer 8s ease infinite alternate;
}

@keyframes textShimmer {
  0% { background-position: 0% 50%; }
  100% { background-position: 100% 50%; }
}

/* --------------------------------------------------------------------------
   3. Buttons & Interactive Controls
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 12px 24px;
  border-radius: var(--border-radius-full);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.22s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.22s ease,
              background-color 0.22s ease,
              border-color 0.22s ease;
  text-decoration: none;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

@media (min-width: 769px) {
  .btn:hover {
    transform: translateY(-2px) scale(1.035);
  }
  .btn:active {
    transform: translateY(0) scale(0.98);
  }
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.85rem;
}

.btn-primary {
  background: var(--primary);
  color: #ffffff;
  box-shadow: 0 4px 16px var(--primary-glow);
}
.btn-primary:hover {
  background: var(--primary-hover);
  box-shadow: 0 8px 24px var(--primary-glow);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(12px);
}
.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--primary);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.35);
}

.btn-outline-glow {
  background: rgba(99, 102, 241, 0.08);
  color: var(--text-main);
  border: 1px solid rgba(99, 102, 241, 0.35);
  box-shadow: 0 0 15px rgba(99, 102, 241, 0.15);
}
.btn-outline-glow:hover {
  background: rgba(99, 102, 241, 0.18);
  border-color: var(--primary);
  box-shadow: 0 0 26px rgba(99, 102, 241, 0.35);
}

/* --------------------------------------------------------------------------
   4. Site Header & Floating Navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 16px;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: all var(--transition-normal);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-header);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-full) !important;
  padding: 8px 18px 8px 24px;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.site-header.scrolled .nav-container {
  box-shadow: var(--shadow-lg), 0 0 20px rgba(0, 0, 0, 0.2);
  border-color: rgba(255, 255, 255, 0.12);
  border-radius: var(--border-radius-full) !important;
}

/* Enforce 100% Full Rounding on All Navigation Elements */
.site-header .nav-container,
.site-header .nav-desktop-cta,
.site-header .btn,
.site-header .nav-link,
.site-header .theme-toggle-btn,
.site-header .mobile-toggle,
.site-header .logo-code-prefix {
  border-radius: var(--border-radius-full) !important;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-brand);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-main);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.logo-code-prefix {
  font-family: var(--font-mono);
  color: var(--primary);
  font-size: 1.1rem;
  font-weight: 700;
  background: var(--primary-light);
  padding: 3px 10px;
  border-radius: var(--border-radius-full) !important;
  border: 1px solid rgba(99, 102, 241, 0.3);
}

.logo-brand-name {
  background: linear-gradient(135deg, var(--text-main) 40%, var(--secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Nav Menu Links */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
  position: relative;
}

.nav-mobile-cta-wrapper {
  display: none;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 8px 14px;
  border-radius: var(--border-radius-full) !important;
  transition: color var(--transition-fast);
  text-decoration: none;
  position: relative;
  z-index: 2;
}

.nav-link:hover {
  color: var(--text-main);
}

.nav-link.active {
  color: var(--primary);
  background: var(--primary-light);
  font-weight: 700;
}

/* Fluid Sliding Pill Indicator (Motion & Aceternity Layout Physics) */
.nav-pill-slider {
  position: absolute;
  top: 0;
  left: 0;
  background: var(--primary-light);
  border: 1px solid rgba(99, 102, 241, 0.28);
  border-radius: var(--border-radius-full) !important;
  pointer-events: none;
  z-index: 1;
  opacity: 0;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              width 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              height 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              opacity 0.22s ease;
  will-change: transform, width;
}

[data-theme="light"] .nav-pill-slider {
  background: rgba(99, 102, 241, 0.12);
  border-color: rgba(99, 102, 241, 0.24);
}

/* Once slider is initialized, transparent backgrounds allow the pill to glide seamlessly */
.nav-menu.has-slider .nav-link {
  background: transparent !important;
}

/* Nav Actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Theme Switcher Button */
.theme-toggle-btn {
  width: 40px;
  height: 40px;
  border-radius: 50% !important;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: all var(--transition-fast);
}

.theme-toggle-btn:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  color: var(--primary);
  transform: rotate(15deg);
}

.theme-icon-sun { display: none; color: #f59e0b; }
.theme-icon-moon { display: block; color: #818cf8; }

[data-theme="light"] .theme-icon-sun { display: block; }
[data-theme="light"] .theme-icon-moon { display: none; }

/* Mobile Menu Toggle */
.mobile-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 50% !important;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

/* --------------------------------------------------------------------------
   5. Hero Section (Ultra Modern Tech Split)
   -------------------------------------------------------------------------- */
.hero-section {
  padding-top: calc(var(--header-height) + 64px);
  padding-bottom: 70px;
  position: relative;
  overflow: hidden;
}

.hero-section .container {
  position: relative;
  z-index: 2;
}

.hero-particles-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  opacity: 0.75;
}

[data-theme="light"] .hero-particles-canvas {
  opacity: 0.35;
}

.hero-spotlight {
  position: absolute;
  top: -120px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 600px;
  background: radial-gradient(circle at center, rgba(99, 102, 241, 0.16) 0%, rgba(6, 182, 212, 0.08) 42%, transparent 72%);
  filter: blur(60px);
  pointer-events: none;
  z-index: 1;
  border-radius: 50%;
}

[data-theme="light"] .hero-spotlight {
  background: radial-gradient(circle at center, rgba(99, 102, 241, 0.10) 0%, rgba(6, 182, 212, 0.04) 42%, transparent 72%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 48px;
}

/* Availability Badge */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 6px 16px;
  border-radius: var(--border-radius-full);
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}

.badge-text-full { display: inline; }
.badge-text-short { display: none; }

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-emerald);
  position: relative;
  box-shadow: 0 0 10px var(--accent-emerald);
}

.pulse-dot::after {
  content: '';
  position: absolute;
  top: -3px;
  left: -3px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid var(--accent-emerald);
  animation: pulseDot 2s ease-out infinite;
}

@keyframes pulseDot {
  0% { transform: scale(0.6); opacity: 1; }
  100% { transform: scale(2.2); opacity: 0; }
}

.hero-greeting {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
}

.hero-title {
  font-size: clamp(2.8rem, 5.5vw, 4.4rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.1;
  margin-bottom: 14px;
}

.hero-subtitle {
  font-size: clamp(1.25rem, 2.2vw, 1.7rem);
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 20px;
  min-height: 2.2em;
}

#typed-text {
  color: var(--secondary);
  border-right: 2px solid var(--primary);
  animation: blinkCursor 0.8s infinite;
}

@keyframes blinkCursor {
  0%, 100% { border-color: transparent; }
  50% { border-color: var(--primary); }
}

.hero-bio {
  font-size: 1.08rem;
  line-height: 1.75;
  color: var(--text-secondary);
  max-width: 620px;
  margin-bottom: 24px;
}

/* 10x Velocity Badge */
.hero-turnaround-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.15) 0%, rgba(245, 158, 11, 0.05) 100%);
  border: 1px solid rgba(245, 158, 11, 0.35);
  padding: 8px 18px;
  border-radius: var(--border-radius-full);
  font-size: 0.88rem;
  font-weight: 700;
  color: #fbbf24;
  margin-bottom: 30px;
  box-shadow: 0 0 20px rgba(245, 158, 11, 0.12);
}

.turnaround-text-full { display: inline; }
.turnaround-text-short { display: none; }

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 32px;
}

/* Social links row */
.hero-socials {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.social-link {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.social-link:hover {
  background: var(--bg-card-hover);
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-3px);
  box-shadow: 0 6px 16px var(--primary-glow);
}

/* Hero Visual / Avatar 3D Showcase */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.avatar-wrapper {
  position: relative;
  width: 340px;
  height: 340px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.avatar-glow {
  position: absolute;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, var(--primary-glow) 0%, rgba(6, 182, 212, 0.2) 50%, transparent 70%);
  border-radius: 50%;
  filter: blur(40px);
  animation: glowPulse 5s ease-in-out infinite alternate;
}

@keyframes glowPulse {
  0% { transform: scale(0.9); opacity: 0.6; }
  100% { transform: scale(1.15); opacity: 0.9; }
}

.avatar-container {
  width: 270px;
  height: 270px;
  border-radius: 36px;
  position: relative;
  overflow: hidden;
  border: 3px solid rgba(99, 102, 241, 0.4);
  box-shadow: var(--shadow-lg), 0 0 35px var(--primary-glow);
  background: var(--bg-card-solid);
  z-index: 2;
  transform: none;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.avatar-container:hover {
  box-shadow: var(--shadow-lg), 0 0 45px var(--primary-glow);
}

.avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Floating interactive tech badges */
.float-badge {
  position: absolute;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 10px 18px;
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--text-main);
  box-shadow: var(--shadow-md);
  z-index: 3;
}

.float-badge-1 {
  top: 15px;
  right: -25px;
}

.float-badge-2 {
  bottom: 25px;
  left: -25px;
}

.float-badge-3 {
  bottom: -20px;
  right: 15px;
}

@keyframes floatBadge1 {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
@keyframes floatBadge2 {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(7px); }
}
@keyframes floatBadge3 {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

@media (min-width: 769px) {
  .float-badge-1 {
    animation: floatBadge1 4.2s ease-in-out infinite;
  }
  .float-badge-2 {
    animation: floatBadge2 5.0s ease-in-out infinite;
  }
  .float-badge-3 {
    animation: floatBadge3 4.6s ease-in-out infinite;
  }
  .float-badge:hover {
    transform: scale(1.06) translateY(-2px) !important;
    border-color: var(--primary);
    box-shadow: 0 10px 24px rgba(99, 102, 241, 0.28);
    transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
  }
}

/* --------------------------------------------------------------------------
   6. Metrics & Impact Bento Bar
   -------------------------------------------------------------------------- */
.stats-bar {
  padding: 20px 0 60px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.stat-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: 24px 20px;
  text-align: center;
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.stat-item::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, var(--spotlight-color), transparent 70%);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.stat-item:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md);
}

.stat-item:hover::before {
  opacity: 1;
}

.stat-number {
  font-family: var(--font-sans);
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-secondary);
}

/* --------------------------------------------------------------------------
   6b. Infinite Rolling Marquee Ticker (Tech Stack & Verified Credentials)
   -------------------------------------------------------------------------- */
.marquee-section {
  padding: 24px 0 28px;
  background: var(--bg-body-secondary);
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.marquee-mask {
  width: 100%;
  overflow: hidden;
  position: relative;
  -webkit-mask-image: linear-gradient(to right, transparent 0%, black 8%, black 92%, transparent 100%);
  mask-image: linear-gradient(to right, transparent 0%, black 8%, black 92%, transparent 100%);
}

.marquee-row {
  display: flex;
  user-select: none;
  overflow: hidden;
  width: 100%;
}

.marquee-track {
  display: flex;
  flex-shrink: 0;
  gap: 14px;
  padding-right: 14px;
  animation: marqueeRoll 32s linear infinite;
  align-items: center;
  will-change: transform;
}

.marquee-track-reverse,
.marquee-row-reverse .marquee-track {
  animation: marqueeRollReverse 36s linear infinite;
}

.marquee-row:hover .marquee-track {
  animation-play-state: paused;
}

@keyframes marqueeRoll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-100%); }
}

@keyframes marqueeRollReverse {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(0); }
}

.marquee-item {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 8px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-full);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-main);
  white-space: nowrap;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.marquee-item:hover {
  border-color: var(--primary);
  background: var(--bg-card-hover);
}

.marquee-item i {
  font-size: 1.05rem;
}

/* --------------------------------------------------------------------------
   7. Common Section Styles & Tags
   -------------------------------------------------------------------------- */
.section {
  padding: 90px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary);
  background: var(--primary-light);
  border: 1px solid rgba(99, 102, 241, 0.25);
  padding: 6px 14px;
  border-radius: var(--border-radius-full);
  margin-bottom: 14px;
}

.section-title {
  font-size: clamp(2rem, 3.8vw, 2.9rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Glass Card Base */
.glass-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.glass-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md);
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

/* --------------------------------------------------------------------------
   8. About Me Bento Showcase (Premium Upgrade)
   -------------------------------------------------------------------------- */
.about-section-glow {
  position: absolute;
  top: 15%;
  right: -80px;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.08) 0%, transparent 70%);
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}

.about-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 36px;
  align-items: start;
  position: relative;
  z-index: 1;
}

.about-credo-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(99, 102, 241, 0.08);
  border: 1px solid rgba(99, 102, 241, 0.25);
  border-radius: var(--border-radius-full);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 18px;
  font-family: var(--font-mono);
}

.about-text h3 {
  font-size: 1.65rem;
  margin-bottom: 18px;
  color: var(--text-main);
  line-height: 1.35;
  letter-spacing: -0.02em;
}

.about-text p {
  font-size: 1.02rem;
  line-height: 1.8;
  margin-bottom: 18px;
  color: var(--text-secondary);
}

.about-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 28px;
}

.about-feature-item {
  display: flex;
  gap: 14px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 20px 18px;
  border-radius: var(--border-radius-md);
  transition: border-color var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast);
}

.about-feature-item:hover {
  border-color: var(--primary);
  background: var(--bg-card-hover);
  box-shadow: var(--shadow-sm);
}

.feature-icon-box {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
  background: var(--bg-body-secondary);
  border: 1px solid var(--border-color);
}

.feature-title {
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
}

.feature-desc {
  font-size: 0.84rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.about-cards-side {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Developer Dossier / System Spec Card */
.dev-dossier-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: border-color var(--transition-fast);
}

.dev-dossier-card:hover {
  border-color: var(--border-hover);
}

.dossier-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  background: rgba(0, 0, 0, 0.22);
  border-bottom: 1px solid var(--border-color);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

[data-theme="light"] .dossier-topbar {
  background: rgba(15, 23, 42, 0.04);
}

.dossier-dots {
  display: flex;
  gap: 6px;
}

.dossier-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dossier-dot.red { background: #ef4444; }
.dossier-dot.yellow { background: #f59e0b; }
.dossier-dot.green { background: #10b981; }

.dossier-title {
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.dossier-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  color: var(--accent-emerald);
}

.dossier-status-ping {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--accent-emerald);
  box-shadow: 0 0 8px var(--accent-emerald);
}

.dossier-body {
  padding: 22px 24px;
}

.dossier-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.dossier-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.92rem;
}

.dossier-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.dossier-label {
  color: var(--text-muted);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
}

.dossier-label i {
  color: var(--primary);
  font-size: 0.9rem;
  width: 16px;
}

.dossier-value {
  font-weight: 600;
  color: var(--text-main);
  text-align: right;
}

/* About Action / Connect Card */
.about-connect-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 22px 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition-fast);
}

.about-connect-card:hover {
  border-color: var(--border-hover);
}

/* About Visual & Fast Facts Card (Home Page) */
@media (min-width: 1025px) {
  .home-about-grid {
    grid-template-columns: 0.82fr 1.18fr;
    align-items: center;
  }
}

.about-visual-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.about-visual-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md), 0 0 24px rgba(99, 102, 241, 0.16);
  transform: translateY(-4px);
}

.about-avatar-wrapper {
  position: relative;
  width: 190px;
  height: 190px;
  margin: 0 auto 18px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-avatar-img {
  width: 170px;
  height: 170px;
  border-radius: 50%;
  object-fit: cover;
  position: relative;
  z-index: 2;
  border: 3px solid rgba(99, 102, 241, 0.4);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4), 0 0 20px var(--primary-glow);
}

.about-avatar-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px dashed rgba(99, 102, 241, 0.35);
  animation: rotateRing 22s linear infinite;
  z-index: 1;
}

@keyframes rotateRing {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.about-badge-status {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--primary-light);
  border: 1px solid rgba(99, 102, 241, 0.3);
  padding: 6px 14px;
  border-radius: var(--border-radius-full);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--primary);
  font-family: var(--font-mono);
  margin-top: 6px;
  max-width: 100%;
  text-align: center;
  line-height: 1.35;
  box-sizing: border-box;
}

.about-badge-status .pulse-dot {
  flex-shrink: 0;
}

@media (max-width: 480px) {
  .about-badge-status {
    font-size: 0.72rem;
    padding: 5px 10px;
    gap: 6px;
    max-width: 95%;
    letter-spacing: -0.25px;
  }
}

/* --------------------------------------------------------------------------
   9. Skills & Tech Stack Section
   -------------------------------------------------------------------------- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: 22px;
  cursor: default;
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal), background-color var(--transition-normal);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  outline: none;
  position: relative;
  overflow: hidden;
}

.skill-card:hover, .skill-card:focus-visible {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.skill-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.skill-card-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.skill-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--bg-body-secondary);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.skill-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
}

.skill-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.skill-percentage-badge {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary);
  background: var(--primary-light);
  padding: 4px 10px;
  border-radius: var(--border-radius-full);
}

.skill-progress-track {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--border-radius-full);
  overflow: hidden;
  margin: 12px 0 16px;
}

[data-theme="light"] .skill-progress-track {
  background: rgba(15, 23, 42, 0.08);
}

.skill-progress-fill {
  height: 100%;
  border-radius: var(--border-radius-full);
  background: var(--gradient-primary);
  transition: width 1.2s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.skill-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-subtle);
  padding-top: 12px;
}

.skill-click-hint {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--primary);
  font-weight: 600;
  transition: transform var(--transition-fast);
}

.skill-card:hover .skill-click-hint {
  color: var(--text-main);
}

/* Skill Content, Progress Bar & Pill Tags (Skills Page) */
.skill-content {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.skill-progress-bar {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--border-radius-full);
  overflow: hidden;
  margin: 12px 0 16px;
}

[data-theme="light"] .skill-progress-bar {
  background: rgba(15, 23, 42, 0.08);
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 6px;
}

.skill-tag {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--secondary);
  background: rgba(6, 182, 212, 0.08);
  border: 1px solid rgba(6, 182, 212, 0.22);
  padding: 4px 10px;
  border-radius: var(--border-radius-full);
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
}

.skill-tag:hover {
  background: rgba(6, 182, 212, 0.18);
  border-color: var(--secondary);
  color: #ffffff;
  transform: translateY(-1px);
}

[data-theme="light"] .skill-tag {
  color: #0369a1;
  background: rgba(2, 132, 199, 0.08);
  border-color: rgba(2, 132, 199, 0.2);
}

[data-theme="light"] .skill-tag:hover {
  background: rgba(2, 132, 199, 0.16);
  color: #0c4a6e;
}

/* Skill Category Cards / Computational Engineering Pillars (Home & Education Pages) */
.skill-category-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 24px 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal), transform var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.skill-category-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md), 0 0 20px rgba(99, 102, 241, 0.16);
  transform: translateY(-4px);
}

.skill-cat-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}

.skill-cat-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--bg-body-secondary);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  color: var(--primary);
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.skill-category-card:hover .skill-cat-icon {
  transform: scale(1.1);
}

.skill-cat-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 2px;
  line-height: 1.3;
}

.skill-cat-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.skill-cat-desc {
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--text-secondary);
  margin-bottom: 16px;
  flex-grow: 1;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

/* --------------------------------------------------------------------------
   10. Featured Projects Section
   -------------------------------------------------------------------------- */
.projects-filter,
.certificates-filter {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.filter-btn {
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 8px 20px;
  border-radius: var(--border-radius-full);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  background: var(--bg-card-hover);
  color: var(--text-main);
  border-color: var(--border-hover);
}

.filter-btn.active {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  box-shadow: 0 4px 14px var(--primary-glow);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 30px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal), opacity var(--transition-normal);
  position: relative;
}

.project-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md);
}

.project-thumbnail {
  width: 100%;
  aspect-ratio: 16 / 9;
  position: relative;
  overflow: hidden;
  background: var(--bg-body-secondary);
}

.project-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity var(--transition-normal);
}

.project-card:hover .project-img {
  opacity: 0.95;
}

.project-badge-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #ffffff;
  padding: 5px 12px;
  border-radius: var(--border-radius-full);
  font-size: 0.78rem;
  font-weight: 700;
  z-index: 2;
}

.project-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.project-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
  line-height: 1.35;
}

.project-desc {
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--text-secondary);
  margin-bottom: 18px;
  flex-grow: 1;
}

.project-techs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.tech-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--secondary);
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.25);
  padding: 3px 10px;
  border-radius: var(--border-radius-sm);
  font-weight: 500;
}

.project-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-subtle);
  padding-top: 16px;
}

.project-links {
  display: flex;
  gap: 10px;
  align-items: center;
}

.project-link-btn,
.view-project-details {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  padding: 6px 14px;
  border-radius: var(--border-radius-full);
  transition: all var(--transition-fast);
  cursor: pointer;
  text-decoration: none;
}

.project-link-btn:hover {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

/* --------------------------------------------------------------------------
   11. Experience & Education Timeline
   -------------------------------------------------------------------------- */
.timeline-container {
  max-width: 820px;
  margin: 0 auto;
  position: relative;
}

.timeline-container::before {
  content: '';
  position: absolute;
  top: 10px;
  bottom: 10px;
  left: 20px;
  width: 2px;
  background: linear-gradient(180deg, var(--primary) 0%, var(--secondary) 100%);
  opacity: 0.4;
}

.timeline-item {
  position: relative;
  padding-left: 54px;
  margin-bottom: 36px;
}

.timeline-dot {
  position: absolute;
  left: 11px;
  top: 16px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--bg-body);
  border: 4px solid var(--primary);
  box-shadow: 0 0 12px var(--primary-glow);
  z-index: 2;
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: 24px;
  transition: all var(--transition-normal);
}

.timeline-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md);
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--primary);
  background: var(--primary-light);
  padding: 3px 10px;
  border-radius: var(--border-radius-sm);
  display: inline-block;
  margin-bottom: 8px;
}

.timeline-role {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
}

.timeline-company {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
}

.timeline-desc {
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--text-secondary);
}

/* --------------------------------------------------------------------------
   12. Verified Honors & Certifications Grid
   -------------------------------------------------------------------------- */
.cert-grid,
.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 26px;
}

.cert-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal), transform var(--transition-normal), opacity var(--transition-normal);
}

.cert-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md), 0 0 24px rgba(99, 102, 241, 0.16);
  transform: translateY(-4px);
}

.cert-card-badge {
  position: absolute !important;
  top: 12px !important;
  left: 12px !important;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #ffffff;
  padding: 4px 12px;
  border-radius: var(--border-radius-full);
  font-size: 0.78rem;
  font-weight: 700;
  z-index: 5 !important;
  display: inline-flex;
  align-items: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

[data-theme="light"] .cert-card-badge {
  background: rgba(255, 255, 255, 0.95);
  border-color: rgba(0, 0, 0, 0.12);
  color: #0f172a;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.cert-preview-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--bg-body-secondary);
  cursor: pointer;
}

.cert-preview-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity var(--transition-normal);
}

.cert-preview-wrapper:hover .cert-preview-img {
  opacity: 0.95;
}

.cert-preview-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 14, 26, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: #ffffff;
  font-size: 0.92rem;
  font-weight: 600;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.cert-preview-wrapper:hover .cert-preview-overlay {
  opacity: 1;
}

.cert-preview-badge {
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #ffffff;
  padding: 6px 14px;
  border-radius: var(--border-radius-full);
  font-size: 0.82rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.35);
  transform: translateY(4px);
  transition: transform var(--transition-fast);
}

.cert-preview-wrapper:hover .cert-preview-badge {
  transform: translateY(0);
}

.cert-info,
.cert-content {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.cert-issuer {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
}

.cert-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  font-size: 0.8rem;
}

.cert-meta-label {
  color: var(--text-muted);
}

.cert-code {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--primary);
  background: var(--primary-light);
  padding: 2px 8px;
  border-radius: var(--border-radius-xs);
  border: 1px solid rgba(99, 102, 241, 0.25);
}

.cert-meta-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.cert-issuer-badge {
  font-size: 0.78rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: var(--border-radius-full);
  border: 1px solid var(--border-color);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.cert-date {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-muted);
}

.cert-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
  line-height: 1.35;
}

.cert-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 18px;
  flex-grow: 1;
}

.cert-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-subtle);
  padding-top: 14px;
}

.cert-id-tag {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.cert-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.cert-btn-view {
  padding: 6px 14px;
  font-size: 0.82rem;
}

.cert-btn-pdf {
  font-size: 0.82rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: var(--border-radius-full);
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #ef4444;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: all var(--transition-fast);
}

.cert-btn-pdf:hover {
  background: #ef4444;
  color: #ffffff;
  border-color: #ef4444;
}

/* --------------------------------------------------------------------------
   13. Contact & Collaboration Section
   -------------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 36px;
  align-items: start;
}

.contact-info-cards {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-item-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 20px 22px;
  border-radius: var(--border-radius-md);
  transition: all var(--transition-fast);
}

.contact-item-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-sm);
}

.contact-card-icon {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: var(--primary-light);
  border: 1px solid rgba(99, 102, 241, 0.3);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.contact-card-title {
  font-size: 0.84rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 2px;
}

.contact-card-value {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  text-decoration: none;
  word-break: break-all;
}

.contact-card-value:hover {
  color: var(--primary);
}

.contact-form-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 34px;
  box-shadow: var(--shadow-md);
}

.form-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--border-radius-sm);
  background: var(--bg-body-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  outline: none;
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

textarea.form-control {
  min-height: 130px;
  resize: vertical;
}

/* --------------------------------------------------------------------------
   14. Site Footer
   -------------------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--border-color);
  background: var(--bg-body-secondary);
  padding: 60px 0 30px;
  position: relative;
  z-index: 1;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 30px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border-subtle);
}

.footer-brand p {
  font-size: 0.92rem;
  color: var(--text-muted);
  margin-top: 8px;
  max-width: 380px;
}

.footer-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--primary);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 24px;
  font-size: 0.86rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   15. Interactive AI Assistant Widget
   -------------------------------------------------------------------------- */
.ai-assistant-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--border-radius-full);
  padding: 12px 22px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-size: 0.92rem;
  font-weight: 700;
  cursor: pointer;
  z-index: 999;
  box-shadow: 0 8px 24px rgba(99, 102, 241, 0.4);
  transition: all var(--transition-normal);
}

.ai-assistant-btn:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 12px 30px rgba(99, 102, 241, 0.55);
}

.ai-badge-pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 8px #10b981;
}

.ai-btn-label {
  font-weight: 700;
  font-size: 0.88rem;
  letter-spacing: 0.02em;
}

.ai-chat-window {
  position: fixed;
  bottom: 84px;
  right: 24px;
  width: 400px;
  max-width: calc(100vw - 40px);
  height: 580px;
  max-height: calc(100vh - 120px);
  background: var(--bg-card-solid);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg), 0 0 40px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  z-index: 1000;
  opacity: 0;
  transform: translateY(20px) scale(0.96);
  pointer-events: none;
  transition: all var(--transition-normal);
}

.ai-chat-window.open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: all;
}

.ai-chat-header {
  padding: 16px 20px;
  background: var(--bg-body-secondary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ai-header-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-main);
}

.ai-header-close {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 1.1rem;
  padding: 4px;
}

.ai-header-close:hover {
  color: var(--text-main);
}

.ai-chat-messages {
  flex-grow: 1;
  padding: 18px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.ai-msg {
  max-width: 86%;
  padding: 12px 16px;
  border-radius: 16px;
  font-size: 0.92rem;
  line-height: 1.55;
  word-break: break-word;
}

.ai-msg-bot {
  align-self: flex-start;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  border-bottom-left-radius: 4px;
}

.ai-msg-user {
  align-self: flex-end;
  background: var(--primary);
  color: #ffffff;
  border-bottom-right-radius: 4px;
}

.ai-quick-prompts {
  display: flex;
  gap: 8px;
  padding: 10px 16px;
  overflow-x: auto;
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-body-secondary);
}

.ai-chip {
  padding: 6px 12px;
  border-radius: var(--border-radius-full);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 600;
  white-space: nowrap;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.ai-chip:hover {
  background: var(--primary-light);
  color: var(--primary);
  border-color: var(--primary);
}

.ai-chat-input-area {
  padding: 12px 16px;
  display: flex;
  gap: 10px;
  border-top: 1px solid var(--border-color);
  background: var(--bg-body-secondary);
}

.ai-chat-input {
  flex-grow: 1;
  padding: 10px 14px;
  border-radius: var(--border-radius-full);
  border: 1px solid var(--border-color);
  background: var(--bg-card-solid);
  color: var(--text-main);
  font-size: 0.9rem;
  outline: none;
}

.ai-chat-input:focus {
  border-color: var(--primary);
}

.ai-chat-send {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary);
  color: #ffffff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  transition: background var(--transition-fast);
}

.ai-chat-send:hover {
  background: var(--primary-hover);
}

/* Typing indicator dots */
.typing-indicator span {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-muted);
  margin-right: 4px;
  animation: typingBounce 1.4s infinite both;
}
.typing-indicator span:nth-child(1) { animation-delay: 0s; }
.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingBounce {
  0%, 80%, 100% { transform: scale(0); }
  40% { transform: scale(1); }
}

/* --------------------------------------------------------------------------
   16. Modals & Overlays
   -------------------------------------------------------------------------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(4, 7, 13, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal-window, .cert-modal-window {
  background: var(--bg-card-solid);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  max-width: 720px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 36px;
  position: relative;
  box-shadow: var(--shadow-lg), 0 0 50px rgba(0, 0, 0, 0.6);
  transform: scale(0.94);
  transition: transform var(--transition-normal);
}

.modal-overlay.open .modal-window,
.modal-overlay.open .cert-modal-window {
  transform: scale(1);
}

.modal-close-btn {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: all var(--transition-fast);
  z-index: 10;
}

.modal-close-btn:hover {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

.cert-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-right: 40px;
}

.cert-modal-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 10px;
}

.cert-modal-img {
  width: 100%;
  border-radius: var(--border-radius-md);
  border: 1px solid var(--border-color);
  margin-bottom: 18px;
  display: block;
}

.cert-modal-body {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 10px;
}

.cert-modal-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  border-top: 1px solid var(--border-subtle);
  padding-top: 18px;
  margin-top: 16px;
}

/* Floating Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: 24px;
  left: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  z-index: 998;
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-md);
}

.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}

.back-to-top:hover {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  transform: translateY(-3px);
}

/* Toast Notifications (Bottom-Left Deck: niche bam dike) */
.toast-container {
  position: fixed;
  bottom: 24px;
  left: 24px;
  top: auto;
  right: auto;
  z-index: 10000;
  display: flex;
  flex-direction: column-reverse;
  gap: 10px;
  pointer-events: none;
  max-width: 380px;
}

.toast {
  pointer-events: auto;
  background: var(--bg-card-solid);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 12px 20px;
  border-radius: var(--border-radius-md);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 10px;
  opacity: 0;
  transform: translateX(-35px);
  transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.toast.show {
  opacity: 1;
  transform: translateX(0);
}

.toast.success { border-left: 4px solid var(--accent-emerald); }
.toast.error { border-left: 4px solid #ef4444; }
.toast.info { border-left: 4px solid var(--primary); }
.toast.warning { border-left: 4px solid #f59e0b; }

@media (max-width: 768px) {
  .toast-container {
    bottom: calc(18px + env(safe-area-inset-bottom, 0px));
    left: 16px;
    right: auto;
    max-width: calc(100vw - 32px);
  }
}

/* --------------------------------------------------------------------------
   16b. Multi-Page Architecture Components (Page Heroes, Banners & Resume)
   -------------------------------------------------------------------------- */
.page-hero {
  padding-top: calc(var(--header-height) + 48px);
  padding-bottom: 36px;
  position: relative;
  text-align: center;
  overflow: hidden;
}

.page-hero .container {
  position: relative;
  z-index: 2;
  max-width: 920px;
}

.page-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-full);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
}

.page-hero-title {
  font-family: var(--font-brand);
  font-size: 2.85rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.03em;
  line-height: 1.18;
  margin-bottom: 14px;
}

.page-hero-subtitle {
  font-size: 1.12rem;
  color: var(--text-secondary);
  line-height: 1.65;
  max-width: 720px;
  margin: 0 auto 20px;
}

.section-view-all-cta {
  text-align: center;
  margin-top: 40px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  width: 100%;
  box-sizing: border-box;
}

.cta-view-all-btn {
  font-size: 0.95rem;
  padding: 12px 24px;
  border-radius: var(--border-radius-full);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-align: center;
  line-height: 1.35;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal !important;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease !important;
}

@media (max-width: 600px) {
  .section-view-all-cta {
    padding: 0 14px;
  }
  .cta-view-all-btn {
    width: 100%;
    max-width: 100%;
    font-size: 0.84rem !important;
    padding: 12px 14px !important;
    gap: 8px;
    letter-spacing: -0.2px;
  }
}

/* Multi-Page Gateway Teaser Cards */
.gateway-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-top: 36px;
}

.gateway-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 24px;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-decoration: none;
  color: inherit;
}

.gateway-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
}

.gateway-icon-box {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  margin-bottom: 16px;
}

.gateway-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.gateway-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 16px;
}

.gateway-link-text {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* Resume Layout & Print Engine */
.resume-wrapper {
  max-width: 900px;
  margin: 0 auto;
}

.resume-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  padding: 16px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  margin-bottom: 24px;
}

.resume-paper {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 44px;
  box-shadow: var(--shadow-lg);
  position: relative;
}

[data-theme="light"] .resume-paper {
  background: #ffffff;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.resume-header {
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 24px;
  margin-bottom: 28px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 20px;
}

.resume-name {
  font-family: var(--font-brand);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}

.resume-role {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
}

.resume-contact-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 20px;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.resume-contact-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.resume-section {
  margin-bottom: 30px;
}

.resume-section:last-child {
  margin-bottom: 0;
}

.resume-section-heading {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-main);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 8px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.resume-entry {
  margin-bottom: 20px;
}

.resume-entry:last-child {
  margin-bottom: 0;
}

.resume-entry-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 4px;
}

.resume-entry-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
}

.resume-entry-org {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--secondary);
}

.resume-entry-date {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
}

.resume-entry-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.resume-entry-list {
  padding-left: 20px;
  margin-top: 6px;
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.55;
}

.resume-entry-list li {
  margin-bottom: 4px;
}

/* Medium-screen Navbar Tuning for 8 Items (769px to 1140px) */
@media (max-width: 1140px) and (min-width: 769px) {
  .nav-container {
    padding: 6px 12px 6px 18px;
  }
  .nav-menu {
    gap: 3px;
  }
  .nav-link {
    font-size: 0.82rem;
    padding: 6px 9px;
  }
  .logo {
    font-size: 1.12rem;
    gap: 6px;
  }
  .logo-code-prefix {
    font-size: 0.9rem;
    padding: 2px 6px;
  }
}

/* Print Optimization for Resume */
@media print {
  body {
    background: #ffffff !important;
    color: #000000 !important;
  }
  .site-header,
  .site-footer,
  .back-to-top,
  .ai-assistant-btn,
  .ai-chat-window,
  .resume-toolbar,
  .page-hero-badge,
  .bg-ambient-orb,
  .bg-tech-grid {
    display: none !important;
  }
  .page-hero {
    padding-top: 0 !important;
    padding-bottom: 10px !important;
  }
  .resume-paper {
    border: none !important;
    box-shadow: none !important;
    padding: 0 !important;
    background: #ffffff !important;
  }
  .resume-name {
    color: #000000 !important;
  }
  .resume-role,
  .resume-section-heading {
    color: #2563eb !important;
  }
  .resume-entry-title,
  .resume-entry-org {
    color: #111827 !important;
  }
  .resume-contact-bar,
  .resume-entry-desc,
  .resume-entry-list {
    color: #374151 !important;
  }
}

/* --------------------------------------------------------------------------
   17. Responsive Breakpoints
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  /* --- Responsive Floating Header & Navigation Drawer (Tablets & Mobile) --- */
  .site-header {
    top: max(8px, var(--sat, 8px));
    padding: 0 12px;
  }

  .site-header .nav-container {
    height: 52px;
    padding: 6px 14px 6px 16px;
    border-radius: var(--border-radius-full) !important;
    background: #0b0f19 !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    border: 1px solid rgba(255, 255, 255, 0.08) !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.35) !important;
  }

  [data-theme="light"] .site-header .nav-container {
    border-radius: var(--border-radius-full) !important;
    background: #ffffff !important;
    border: 1px solid rgba(0, 0, 0, 0.08) !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06) !important;
  }

  .logo {
    font-size: 1.15rem;
    gap: 6px;
  }

  .logo-code-prefix {
    font-size: 0.92rem;
    padding: 2px 8px;
    border-radius: var(--border-radius-full) !important;
  }

  .logo-brand-name {
    font-size: 1.08rem;
  }

  .nav-actions {
    gap: 8px;
  }

  /* Declutter topbar: Hide desktop CTA in header */
  .nav-desktop-cta {
    display: none !important;
  }

  .theme-toggle-btn,
  .mobile-toggle {
    width: 44px;
    height: 44px;
    font-size: 1rem;
    border-radius: 50% !important;
  }

  .mobile-toggle {
    display: flex !important;
  }

  /* Lightweight, Non-Laggy Mobile Drawer */
  .nav-menu {
    position: fixed;
    top: calc(52px + max(8px, var(--sat, 8px)) + 8px);
    left: 12px;
    right: 12px;
    background: #111827 !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    border-radius: var(--border-radius-xl) !important;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.65) !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    padding: 16px;
    flex-direction: column;
    gap: 6px;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 0.2s ease, transform 0.2s ease;
    z-index: 1001;
    max-height: calc(100dvh - 84px);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  [data-theme="light"] .nav-menu {
    background: #ffffff !important;
    border: 1px solid rgba(0, 0, 0, 0.1) !important;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.15) !important;
    border-radius: var(--border-radius-xl) !important;
  }

  .nav-menu.open {
    opacity: 1;
    pointer-events: all;
    transform: translateY(0);
  }

  .nav-link {
    width: 100%;
    padding: 12px 18px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--border-radius-full) !important;
    color: var(--text-secondary);
    justify-content: space-between;
    background: transparent;
  }

  .nav-link:active,
  .nav-link.active,
  .nav-menu.has-slider .nav-link.active {
    background: var(--primary-light) !important;
    color: var(--primary);
  }

  /* Completely disable horizontal underline pseudo-elements and desktop slider inside mobile drawer */
  .nav-menu .nav-link::after,
  .nav-menu .nav-pill-slider {
    display: none !important;
  }

  .nav-mobile-cta-wrapper {
    display: block;
    width: 100%;
    margin-top: 10px;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
  }

  .nav-mobile-cta {
    display: flex;
    width: 100%;
    justify-content: center;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
    font-weight: 700;
    padding: 12px 18px;
    border-radius: var(--border-radius-full) !important;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }
  
  .hero-greeting {
    justify-content: center;
  }
  
  .hero-bio {
    margin: 0 auto 24px;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .hero-socials {
    justify-content: center;
  }
  
  .hero-visual {
    order: -1;
  }
  
  .avatar-wrapper {
    width: 280px;
    height: 280px;
  }
  
  .avatar-container {
    width: 220px;
    height: 220px;
  }
  
  .about-grid, .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .stats-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ==========================================================================
   Extreme Mobile-First Architecture & Low-End Optimization Suite
   Strictly isolated to <= 768px. Zero impact on Desktop PC.
   ========================================================================== */

@media (max-width: 768px) {
  /* --- 1. Global Touch Hygiene, Viewport & Zero Horizontal Overflow --- */
  html,
  body {
    overflow-x: hidden !important;
    width: 100% !important;
    max-width: 100vw !important;
    -webkit-tap-highlight-color: transparent;
  }

  body {
    position: relative;
    min-height: 100dvh;
  }

  a,
  button,
  input,
  select,
  textarea {
    touch-action: manipulation;
  }

  /* Prevent iOS Safari Automatic Zooming on Input Focus */
  input,
  textarea,
  select,
  .form-control,
  .ai-chat-input {
    font-size: 16px !important;
  }

  /* Minimum 44x44px Touch Targets for WCAG & Mobile Usability */
  .nav-link,
  .nav-mobile-cta,
  .theme-toggle-btn,
  .mobile-toggle,
  .social-link,
  .filter-btn,
  .btn,
  .back-to-top,
  .modal-close,
  .cert-modal-close,
  .modal-close-btn,
  .ai-header-close,
  .ai-chat-send,
  .ai-assistant-btn {
    min-height: 44px;
    min-width: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  /* --- 2. Universal Mobile GPU Blur Stripping (Guaranteed 60fps on Low-End Hardware) --- */
  *, *::before, *::after {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
  }

  /* Container Spacing on Mobile */
  .container {
    padding-left: 16px !important;
    padding-right: 16px !important;
  }

  /* Section Padding Optimization (Eliminates Huge 90px Desktop Gaps) */
  .section {
    padding: 48px 0 !important;
  }

  .section-header {
    margin-bottom: 28px !important;
  }

  .section-title {
    font-size: 1.85rem !important;
    line-height: 1.25 !important;
  }

  .section-tag {
    font-size: 0.8rem !important;
    padding: 5px 14px !important;
  }

  /* --- 3. Kill Expensive GPU Blurs, Ambient Orbs & Heavy Filters --- */
  .bg-ambient-orb,
  .hero-spotlight,
  .bg-tech-grid,
  .float-badge,
  .hero-particles-canvas {
    display: none !important;
  }

  /* --- 4. Premium Elevated Mobile Surfaces (Optimized Single Minimal Shadow, No Lag) --- */
  .project-card,
  .cert-card,
  .skill-card,
  .skill-category-card,
  .about-visual-card,
  .about-feature-item,
  .dev-dossier-card,
  .about-connect-card,
  .glass-card,
  .stat-item,
  .timeline-card,
  .contact-item-card,
  .contact-form-box,
  .gateway-card,
  .resume-toolbar {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.28);
  }

  [data-theme="light"] .project-card,
  [data-theme="light"] .cert-card,
  [data-theme="light"] .skill-card,
  [data-theme="light"] .skill-category-card,
  [data-theme="light"] .about-visual-card,
  [data-theme="light"] .about-feature-item,
  [data-theme="light"] .dev-dossier-card,
  [data-theme="light"] .about-connect-card,
  [data-theme="light"] .glass-card,
  [data-theme="light"] .stat-item,
  [data-theme="light"] .timeline-card,
  [data-theme="light"] .contact-item-card,
  [data-theme="light"] .contact-form-box,
  [data-theme="light"] .gateway-card,
  [data-theme="light"] .resume-toolbar {
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  }

  /* Resume Paper: Theme-Aware Mobile Layout (Dark in Dark Mode, Light in Light Mode) */
  .resume-paper {
    padding: 24px 18px !important;
    margin: 0 auto !important;
    width: 100% !important;
    background: var(--bg-card) !important;
    color: var(--text-secondary) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: var(--border-radius-lg) !important;
    box-shadow: var(--shadow-lg) !important;
  }

  .resume-paper h2,
  .resume-paper .resume-name {
    color: var(--text-main) !important;
  }

  .resume-paper .resume-role,
  .resume-paper .resume-section-heading {
    color: var(--primary) !important;
  }

  .resume-paper .resume-entry-title {
    color: var(--text-main) !important;
  }

  .resume-paper .resume-entry-org {
    color: var(--secondary) !important;
  }

  .resume-paper .resume-contact-bar,
  .resume-paper .resume-entry-desc,
  .resume-paper .resume-summary-text,
  .resume-paper .resume-entry-list li {
    color: var(--text-secondary) !important;
  }

  .resume-paper strong {
    color: var(--text-main) !important;
  }

  [data-theme="light"] .resume-paper {
    background: #ffffff !important;
    color: #334155 !important;
    border: 1px solid rgba(0, 0, 0, 0.1) !important;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06) !important;
  }

  [data-theme="light"] .resume-paper h2,
  [data-theme="light"] .resume-paper .resume-name,
  [data-theme="light"] .resume-paper .resume-entry-title {
    color: #0f172a !important;
  }

  [data-theme="light"] .resume-paper p,
  [data-theme="light"] .resume-paper .resume-contact-bar,
  [data-theme="light"] .resume-paper .resume-entry-desc,
  [data-theme="light"] .resume-paper .resume-summary-text,
  [data-theme="light"] .resume-paper .resume-entry-list li {
    color: #334155 !important;
  }

  [data-theme="light"] .resume-paper strong {
    color: #0f172a !important;
  }

  .page-hero {
    padding-top: calc(52px + max(8px, var(--sat, 8px)) + 24px) !important;
    padding-bottom: 24px !important;
  }

  .page-hero .page-hero-title {
    font-size: 2.1rem !important;
    line-height: 1.25 !important;
  }

  .page-hero .page-hero-subtitle {
    font-size: 0.95rem !important;
  }



  .resume-toolbar {
    padding: 14px 16px !important;
    flex-direction: column !important;
    align-items: stretch !important;
  }

  /* Kill pseudo-element gradient overlays on mobile */
  .stat-item::before,
  .skill-card::before,
  .project-card::before,
  .cert-card::before,
  .dev-dossier-card::before,
  .about-connect-card::before,
  .timeline-card::before,
  .contact-item-card::before,
  .contact-form-box::before {
    display: none !important;
  }

  /* Strip card hover image transforms on touch screens */
  .project-img,
  .cert-preview-img,
  .project-card:hover .project-img,
  .cert-card:hover .cert-preview-img,
  .skill-card:hover .skill-icon-wrapper {
    transform: none !important;
    transition: none !important;
    opacity: 1 !important;
  }

  /* --- 5. Touch-Optimized Tactile Buttons, Pills & Badges --- */
  .btn,
  .btn-primary,
  .btn-secondary,
  .btn-outline-glow,
  .social-link,
  .filter-btn,
  .ai-chip {
    transition: transform 0.15s ease, opacity 0.15s ease, background 0.2s ease !important;
    -webkit-tap-highlight-color: transparent;
  }

  .btn:active,
  .social-link:active,
  .filter-btn:active,
  .ai-chip:active {
    transform: scale(0.96) !important;
    opacity: 0.9 !important;
  }

  .btn-primary {
    background: var(--gradient-primary) !important;
    color: #ffffff !important;
    border: 1px solid rgba(255, 255, 255, 0.15) !important;
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35) !important;
    border-radius: var(--border-radius-full) !important;
  }

  .btn-secondary {
    background: var(--bg-card) !important;
    color: var(--text-main) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: var(--border-radius-full) !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2) !important;
  }

  [data-theme="light"] .btn-secondary {
    background: #ffffff !important;
    color: #0f172a !important;
    border: 1px solid rgba(0, 0, 0, 0.1) !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05) !important;
  }

  .social-link {
    background: var(--bg-card) !important;
    color: var(--text-main) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 50% !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2) !important;
  }

  [data-theme="light"] .social-link {
    background: #ffffff !important;
    color: #0f172a !important;
    border: 1px solid rgba(0, 0, 0, 0.1) !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05) !important;
  }

  .filter-btn {
    background: var(--bg-card) !important;
    color: var(--text-secondary) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: var(--border-radius-full) !important;
  }

  .filter-btn.active {
    background: var(--primary) !important;
    color: #ffffff !important;
    border-color: var(--primary) !important;
  }

  .hero-turnaround-badge,
  .hero-badge,
  .about-credo-badge,
  .project-badge-tag,
  .cert-preview-badge {
    border-radius: var(--border-radius-full) !important;
  }

  /* --- 6. Section Layouts & Touch-Optimized Content Rhythm --- */
  /* Hero Section */
  .hero-section {
    padding-top: calc(52px + max(8px, var(--sat, 8px)) + 24px);
    padding-bottom: 36px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 24px;
    text-align: center;
  }

  .hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .hero-greeting {
    justify-content: center;
  }

  .hero-title {
    font-size: 2.25rem;
    line-height: 1.2;
    margin-bottom: 8px;
  }

  .hero-subtitle {
    font-size: 1.1rem;
    margin-bottom: 12px;
  }

  .hero-bio {
    max-width: 100%;
    margin: 0 auto 20px;
    font-size: 0.95rem;
    line-height: 1.55;
  }

  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    width: 100%;
  }

  .hero-actions .btn {
    flex: 1 1 140px;
    min-height: 44px;
    justify-content: center;
  }

  .hero-visual {
    order: -1;
  }

  .avatar-wrapper {
    width: 200px;
    height: 200px;
    margin: 0 auto;
  }

  .avatar-container {
    width: 180px;
    height: 180px;
    border-radius: 50% !important;
    border: 3px solid var(--primary) !important;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.35) !important;
    transform: none !important;
  }

  .hero-socials {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    width: 100%;
    margin-top: 14px;
  }

  .social-link {
    width: 44px;
    height: 44px;
    font-size: 1.1rem;
    flex-shrink: 0;
  }

  /* Marquee Section */
  .marquee-section {
    padding: 14px 0 18px;
  }

  .marquee-item {
    padding: 6px 14px;
    font-size: 0.82rem;
    gap: 7px;
  }

  .marquee-item i {
    font-size: 0.95rem;
  }

  .marquee-track {
    will-change: transform;
    transform: translateZ(0);
  }

  /* Stats Grid */
  .stats-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 12px !important;
  }

  .stats-grid .stat-item:last-child {
    grid-column: span 2;
  }

  .stat-item {
    padding: 20px 14px !important;
    border-radius: var(--border-radius-md) !important;
  }

  .stat-number {
    font-size: 2.2rem !important;
    font-weight: 800 !important;
  }

  .stat-label {
    font-size: 0.85rem !important;
    font-weight: 600 !important;
    color: var(--text-secondary) !important;
  }

  /* Skills Grid */
  .skills-grid {
    grid-template-columns: 1fr !important;
    gap: 16px !important;
  }

  .skill-card,
  .skill-category-card {
    padding: 20px 18px !important;
    border-radius: var(--border-radius-lg) !important;
    cursor: default;
  }

  .skill-icon {
    width: 44px !important;
    height: 44px !important;
    font-size: 1.3rem !important;
    border-radius: 12px !important;
  }

  .skill-title {
    font-size: 1.05rem !important;
    font-weight: 700 !important;
  }

  .skill-subtitle {
    font-size: 0.84rem !important;
    color: var(--text-muted) !important;
  }

  .skill-percentage-badge {
    font-size: 0.82rem !important;
    font-weight: 700 !important;
    padding: 4px 10px !important;
  }

  /* Category Filter Pills (Horizontal Touch Swiping) */
  .projects-filter,
  .certificates-filter {
    display: flex;
    justify-content: flex-start;
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
    gap: 8px;
    padding: 4px 4px 12px 4px;
    margin-bottom: 20px;
  }

  .projects-filter::-webkit-scrollbar,
  .certificates-filter::-webkit-scrollbar {
    display: none;
  }

  .filter-btn {
    white-space: nowrap;
    flex-shrink: 0;
    min-height: 44px;
    padding: 8px 18px;
    font-size: 0.85rem;
  }

  /* Projects & Certificate Grids */
  .projects-grid,
  .cert-grid,
  .certs-grid {
    grid-template-columns: 1fr !important;
    gap: 18px !important;
  }

  /* Experience & Education Timeline */
  .timeline-item {
    padding-left: 44px;
    margin-bottom: 24px;
  }

  .timeline-dot {
    left: 8px;
    width: 18px;
    height: 18px;
    top: 14px;
  }

  .timeline-container::before {
    left: 16px;
    top: 8px;
    bottom: 8px;
  }

  .timeline-card {
    padding: 18px 16px;
  }

  .timeline-role {
    font-size: 1.1rem;
  }

  .timeline-company {
    font-size: 0.88rem;
  }

  /* Contact Section */
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .contact-item-card {
    padding: 16px;
  }

  .contact-form-box {
    padding: 20px 16px;
  }

  .form-grid-2,
  .about-features {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  /* Safe Area Aware Floating Elements & Modals on Mobile */
  .ai-assistant-btn {
    bottom: max(16px, var(--sab, 16px));
    right: max(14px, var(--sar, 14px));
    min-height: 44px;
    padding: 10px 16px;
    font-size: 0.85rem;
  }

  .back-to-top {
    bottom: max(16px, var(--sab, 16px));
    left: max(14px, var(--sal, 14px));
    width: 44px;
    height: 44px;
  }

  /* Modals on Mobile: Full-Width Responsive Dialogs with No Blurring */
  .modal-overlay {
    background: rgba(8, 12, 22, 0.94) !important;
    padding: 12px !important;
  }

  [data-theme="light"] .modal-overlay {
    background: rgba(15, 23, 42, 0.78) !important;
  }

  .modal-window,
  .cert-modal-window {
    max-width: 100% !important;
    width: 100% !important;
    padding: 24px 16px 20px 16px !important;
    max-height: calc(100dvh - 32px) !important;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45) !important;
    border-radius: var(--border-radius-lg) !important;
  }

  .modal-close-btn {
    top: 10px !important;
    right: 10px !important;
    width: 44px !important;
    height: 44px !important;
    border-radius: 50% !important;
  }

  .ai-chat-window {
    right: 8px !important;
    left: 8px !important;
    bottom: calc(max(14px, var(--sab, 14px)) + 54px) !important;
    width: calc(100vw - 16px) !important;
    max-height: calc(100dvh - 84px) !important;
    background: var(--bg-card-solid) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: var(--border-radius-lg) !important;
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.5) !important;
  }

  [data-theme="light"] .ai-chat-window {
    background: #ffffff !important;
    border: 1px solid rgba(0, 0, 0, 0.1) !important;
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.12) !important;
  }

  .ai-header-close {
    width: 44px !important;
    height: 44px !important;
    min-width: 44px !important;
    min-height: 44px !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    border-radius: 50% !important;
  }

  /* Centered, Clean Mobile Footer */
  .site-footer {
    padding: 40px 0 24px !important;
  }

  .footer-content {
    flex-direction: column !important;
    align-items: center !important;
    text-align: center !important;
    gap: 20px !important;
    padding-bottom: 24px !important;
  }

  .footer-links {
    justify-content: center !important;
    gap: 14px !important;
  }

  .footer-bottom {
    flex-direction: column !important;
    align-items: center !important;
    text-align: center !important;
    gap: 10px !important;
    padding-top: 18px !important;
  }

  .badge-text-full,
  .turnaround-text-full {
    display: none;
  }

  .badge-text-short,
  .turnaround-text-short {
    display: inline;
  }
}

/* --- 7. Extra Mobile Narrow Devices (<= 480px) --- */
@media (max-width: 480px) {
  .container {
    padding-left: 14px !important;
    padding-right: 14px !important;
  }

  .section {
    padding: 36px 0 !important;
  }

  .section-header {
    margin-bottom: 22px !important;
  }

  .section-title {
    font-size: 1.65rem !important;
  }

  .section-tag {
    font-size: 0.76rem !important;
    padding: 4px 12px !important;
  }

  .page-hero {
    padding-top: calc(52px + max(8px, var(--sat, 8px)) + 16px) !important;
    padding-bottom: 20px !important;
  }

  .page-hero .page-hero-title {
    font-size: 1.85rem !important;
  }

  .hero-section {
    padding-top: calc(52px + max(8px, var(--sat, 8px)) + 16px);
    padding-bottom: 28px;
  }

  .hero-title {
    font-size: 1.95rem;
    line-height: 1.2;
    margin-bottom: 8px;
  }

  .hero-subtitle {
    font-size: 1rem;
    margin-bottom: 12px;
  }

  .hero-bio {
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 18px;
  }

  .hero-actions {
    display: grid !important;
    grid-template-columns: 1fr 1fr !important;
    gap: 10px !important;
    width: 100% !important;
    max-width: 360px !important;
    margin: 0 auto 20px auto !important;
  }

  .hero-actions .btn:first-child {
    grid-column: span 2 !important;
    padding: 12px 18px !important;
    font-size: 0.92rem !important;
  }

  .hero-actions .btn:not(:first-child) {
    padding: 10px 12px !important;
    font-size: 0.84rem !important;
    min-width: 0 !important;
    white-space: nowrap !important;
  }

  .hero-socials {
    gap: 8px !important;
    margin: 0 auto 20px auto !important;
  }

  .social-link {
    width: 44px !important;
    height: 44px !important;
    font-size: 1.05rem !important;
  }
}

/* --- 8. Small Screen / Low-End Devices (<= 360px) --- */
@media (max-width: 360px) {
  .container {
    padding-left: 10px !important;
    padding-right: 10px !important;
  }

  .section {
    padding: 30px 0 !important;
  }

  .section-title {
    font-size: 1.45rem !important;
  }

  .hero-title {
    font-size: 1.7rem !important;
  }

  .skills-grid {
    grid-template-columns: 1fr !important;
  }

  .stats-grid {
    grid-template-columns: 1fr !important;
  }

  .stats-grid .stat-item:last-child {
    grid-column: span 1 !important;
  }

  .hero-actions {
    grid-template-columns: 1fr !important;
  }

  .hero-actions .btn:first-child {
    grid-column: span 1 !important;
  }

  .btn {
    padding: 10px 14px !important;
    font-size: 0.82rem !important;
  }
}

/* Hard Kill on any floating dock bar */
.floating-dock-nav,
.floating-dock,
[class*="floating-dock"] {
  display: none !important;
  visibility: hidden !important;
  pointer-events: none !important;
  opacity: 0 !important;
}

/* ==========================================================================
   Responsive Scroll Reveals & Dynamic Micro-Interactions (Fluid 60fps/120fps)
   ========================================================================== */


/* 1. Scroll-Triggered Reveal Animations - Desktop */
@media (min-width: 769px) {
  .reveal-on-scroll {
    opacity: 0;
    transform: translateY(46px);
    will-change: opacity, transform;
  }

  .reveal-on-scroll.revealed {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.75s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.75s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .reveal-on-scroll.reveal-done {
    opacity: 1;
    transform: none;
    will-change: auto;
  }
}

/* Mobile: Snappy, Hardware-Accelerated 60fps Scroll Reveal */
@media (max-width: 768px) {
  .reveal-on-scroll {
    opacity: 0;
    transform: translateY(32px);
    will-change: opacity, transform;
  }

  .reveal-on-scroll.revealed {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.65s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.65s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .reveal-on-scroll.reveal-done {
    opacity: 1;
    transform: none;
    will-change: auto;
  }
}

/* 2. Desktop Card Hover Micro-Physics (Clean 2D, Zero 3D Distortions) */
@media (min-width: 769px) {
  /* Project Cards */
  .project-card {
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1),
                box-shadow 0.35s ease,
                border-color 0.35s ease,
                opacity 0.28s ease;
  }
  .project-card:hover {
    transform: translateY(-6px);
    border-color: rgba(99, 102, 241, 0.45);
    box-shadow: 0 20px 38px -10px rgba(0, 0, 0, 0.5), 0 0 24px rgba(99, 102, 241, 0.2);
  }
  .project-img {
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
  }
  .project-card:hover .project-img {
    transform: scale(1.045);
    opacity: 1;
  }

  /* Certificate Cards */
  .cert-card {
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1),
                box-shadow 0.35s ease,
                border-color 0.35s ease,
                opacity 0.28s ease;
  }
  .cert-card:hover {
    transform: translateY(-6px);
    border-color: rgba(99, 102, 241, 0.45);
    box-shadow: 0 20px 38px -10px rgba(0, 0, 0, 0.5), 0 0 24px rgba(99, 102, 241, 0.2);
  }
  .cert-preview-img {
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  }
  .cert-card:hover .cert-preview-img {
    transform: scale(1.045);
  }

  /* Skill Cards */
  .skill-card {
    transition: transform 0.32s cubic-bezier(0.16, 1, 0.3, 1),
                box-shadow 0.32s ease,
                border-color 0.32s ease,
                background-color 0.32s ease;
  }
  .skill-card:hover, .skill-card:focus-visible {
    transform: translateY(-4px);
    border-color: var(--primary);
    box-shadow: 0 14px 28px -6px rgba(0, 0, 0, 0.45), 0 0 18px rgba(99, 102, 241, 0.22);
  }
  .skill-icon-wrapper {
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  }
  .skill-card:hover .skill-icon-wrapper {
    transform: scale(1.1);
  }

  /* About Feature Items */
  .about-feature-item {
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1),
                box-shadow 0.3s ease,
                border-color 0.3s ease,
                background-color 0.3s ease;
  }
  .about-feature-item:hover {
    transform: translateY(-3px);
    border-color: var(--primary);
    box-shadow: 0 10px 22px -5px rgba(0, 0, 0, 0.35), 0 0 14px rgba(99, 102, 241, 0.16);
  }
  .feature-icon-box {
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  }
  .about-feature-item:hover .feature-icon-box {
    transform: scale(1.1);
  }

  /* Developer Dossier Card & Bento Cards */
  .dev-dossier-card,
  .about-connect-card,
  .glass-card {
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1),
                box-shadow 0.35s ease,
                border-color 0.35s ease;
  }
  .dev-dossier-card:hover,
  .about-connect-card:hover,
  .glass-card:hover {
    transform: translateY(-4px);
    border-color: rgba(99, 102, 241, 0.4);
    box-shadow: 0 18px 36px -8px rgba(0, 0, 0, 0.45), 0 0 20px rgba(99, 102, 241, 0.16);
  }

  /* Stat Items */
  .stat-item {
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1),
                box-shadow 0.3s ease,
                border-color 0.3s ease;
  }
  .stat-item:hover {
    transform: translateY(-4px);
    border-color: rgba(99, 102, 241, 0.4);
    box-shadow: 0 12px 26px -6px rgba(0, 0, 0, 0.4), 0 0 18px rgba(99, 102, 241, 0.18);
  }

  /* Experience Timeline Content */
  .exp-timeline-content {
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1),
                box-shadow 0.35s ease,
                border-color 0.35s ease;
  }
  .exp-timeline-item:hover .exp-timeline-content {
    transform: translateY(-3px);
    border-color: rgba(99, 102, 241, 0.45);
    box-shadow: 0 14px 28px -6px rgba(0, 0, 0, 0.4), 0 0 20px rgba(99, 102, 241, 0.16);
  }
  .exp-timeline-dot {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }
  .exp-timeline-item:hover .exp-timeline-dot {
    transform: scale(1.25);
    box-shadow: 0 0 18px var(--primary);
  }

  /* Contact Method Cards */
  .contact-method-card {
    transition: transform 0.32s cubic-bezier(0.16, 1, 0.3, 1),
                box-shadow 0.32s ease,
                border-color 0.32s ease;
  }
  .contact-method-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
    box-shadow: 0 14px 28px -6px rgba(0, 0, 0, 0.4), 0 0 18px rgba(99, 102, 241, 0.2);
  }

  /* Button Hover scale and Icon micro-nudge for PC */
  .btn:hover {
    transform: translateY(-2px) scale(1.035);
  }
  .btn:active {
    transform: translateY(0) scale(0.98);
  }
  .btn:hover i {
    transform: translateX(3px);
  }
  .btn i {
    transition: transform 0.2s ease;
  }

  /* Social link hover */
  .social-link {
    transition: transform 0.25s ease, background-color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
  }
  .social-link:hover {
    transform: translateY(-3px) scale(1.1);
    box-shadow: 0 8px 18px rgba(99, 102, 241, 0.25);
    border-color: var(--primary);
  }

  /* Filter pills hover */
  .filter-btn {
    transition: transform 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
  }
  .filter-btn:hover {
    transform: translateY(-2px) scale(1.04);
  }
}

/* 3. Card Spotlight Cursor Tracking (Aceternity style, PC Only) */
@media (min-width: 769px) {
  .card-spotlight {
    position: relative;
    overflow: hidden;
  }
  .card-spotlight::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: inherit;
    background: radial-gradient(
      420px circle at var(--mouse-x, -500px) var(--mouse-y, -500px),
      rgba(99, 102, 241, 0.12),
      transparent 80%
    );
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.35s ease;
    z-index: 1;
  }
  .card-spotlight:hover::before {
    opacity: 1;
  }
  /* Keep interactive inner elements clickable and layered above spotlight */
  .card-spotlight > *:not(.cert-card-badge):not(.project-badge-tag) {
    position: relative;
    z-index: 2;
  }

  /* 4. Neon Ambient Text Glow (Dark Theme) */
  [data-theme="dark"] .hero-title {
    text-shadow: 0 0 35px rgba(99, 102, 241, 0.2);
  }
  [data-theme="dark"] .section-title {
    text-shadow: 0 0 25px rgba(99, 102, 241, 0.12);
  }

  /* 5. Enhanced Gateway Card Hover */
  .gateway-card {
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1),
                box-shadow 0.35s ease,
                border-color 0.35s ease;
  }
  .gateway-card:hover {
    transform: translateY(-6px);
    border-color: rgba(99, 102, 241, 0.5);
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.4), 0 0 30px rgba(99, 102, 241, 0.2);
  }

  /* 6. Section Tag Subtle Glow */
  .section-tag {
    box-shadow: 0 0 16px rgba(99, 102, 241, 0.18);
    transition: box-shadow 0.3s ease;
  }


  /* 8. Accessible Focus-Visible States (WCAG AA Compliant) */
  a:focus-visible,
  button:focus-visible,
  input:focus-visible,
  textarea:focus-visible,
  select:focus-visible,
  .btn:focus-visible,
  .social-link:focus-visible,
  .filter-btn:focus-visible,
  .nav-link:focus-visible,
  .project-card:focus-visible,
  .cert-card:focus-visible,
  .skill-card:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 3px;
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.25);
  }

  /* 9. Smooth Image Zoom & Reveal */
  .project-thumbnail img,
  .cert-preview-wrapper img {
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  }
  .project-card:hover .project-thumbnail img,
  .cert-card:hover .cert-preview-wrapper img {
    transform: scale(1.04);
  }
}

/* ==========================================================================
   Reduced Motion Accessibility (prefers-reduced-motion: reduce)
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal-on-scroll {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .card-spotlight::before {
    display: none !important;
  }
  .gateway-card:hover {
    transform: none !important;
  }
  .project-card:hover .project-thumbnail img,
  .cert-card:hover .cert-preview-wrapper img {
    transform: none !important;
  }
  .marquee-track {
    animation: none !important;
  }
  .bg-ambient-orb {
    animation: none !important;
  }
}