/* ============================================
   PORTFOLIO TECH/CYBERSÉCURITÉ - CUSTOM CSS
   Design System v2 — "Wow" Edition
   ============================================ */

/* ============================================
   1. CSS VARIABLES - Design Tokens
   ============================================ */
:root {
  /* Background Colors */
  --bg-primary: #0f1629;
  --bg-secondary: #141c35;
  --bg-tertiary: #1a2340;
  --bg-surface: #161e36;

  /* Restrained accents */
  --accent-a: #62c9c5;
  --accent-b: #91a5b8;
  --accent-c: #8fc8b4;
  --accent-d: #c7b98a;

  /* Neon Accent Colors */
  --neon-cyan: var(--accent-a);
  --neon-green: var(--accent-c);
  --neon-purple: #8495aa;
  --neon-pink: #b9879e;

  /* Text Colors */
  --text-primary: #f0f5ff;
  --text-secondary: #b8cce6;
  --text-muted: #7d93b5;

  /* Effects */
  --border-glow: rgba(0, 229, 255, 0.18);
  --shadow-accent-a: 0 6px 30px rgba(0, 229, 255, 0.08);
  --shadow-accent-b: 0 6px 30px rgba(255, 110, 199, 0.06);
  --surface-alpha: rgba(255,255,255,0.04);

  /* Glassmorphism */
  --glass-bg: linear-gradient(135deg, rgba(255,255,255,0.09), rgba(255,255,255,0.03));
  --glass-border: rgba(255,255,255,0.12);
  --glass-blur: 16px;

  /* Animation timings */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ============================================
   2. BASE STYLES
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

[x-cloak] {
  display: none !important;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

.text-gray-300 {
  color: #d7e1e8 !important;
}

.text-gray-400 {
  color: #b4c3cf !important;
}

.text-gray-500 {
  color: #8ea2b3 !important;
}

/* Canvas particle background */
#particles-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.18;
}

/* Noise grain overlay for cyberpunk feel */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 128px;
}

/* Ensure all content sits above canvas and grain */
body > header,
body > main,
body > footer {
  position: relative;
  z-index: 2;
}

/* Selection color */
::selection {
  background: rgba(0, 229, 255, 0.3);
  color: #fff;
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--neon-cyan), var(--neon-purple));
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--neon-green), var(--neon-pink));
}

/* ============================================
   3. TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  line-height: 1.2;
}

.font-mono {
  font-family: 'Space Mono', monospace;
}

/* Text Glow Effect */
.text-glow {
  text-shadow: 0 0 8px currentColor, 0 0 20px currentColor;
}

.text-glow-cyan {
  color: var(--neon-cyan);
  text-shadow: 0 0 12px rgba(98,201,197,0.24);
}

.text-glow-green {
  color: var(--neon-green);
  text-shadow: 0 0 12px rgba(143,200,180,0.22);
}

/* Animated gradient text */
.text-gradient-animate {
  background: linear-gradient(270deg, var(--neon-cyan), var(--neon-purple), var(--neon-pink), var(--neon-green), var(--neon-cyan));
  background-size: 400% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradientShift 8s ease infinite;
}

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

/* ============================================
   4. BUTTONS
   ============================================ */
.btn-primary {
  display: inline-block;
  padding: 0.8rem 1.75rem;
  background: linear-gradient(135deg, var(--neon-cyan), var(--neon-purple));
  color: #0a0e1a;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  border-radius: 0.75rem;
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: transform 0.35s var(--ease-spring), box-shadow 0.35s ease;
  box-shadow: 0 4px 20px rgba(0,229,255,0.25), 0 0 0 0 rgba(0,229,255,0);
}

/* Shine sweep on hover */
.btn-primary::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  transition: left 0.5s ease;
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 8px 35px rgba(0,229,255,0.4), 0 0 20px rgba(180,77,255,0.2);
}

.btn-primary:hover::after {
  left: 120%;
}

.btn-secondary {
  display: inline-block;
  padding: 0.7rem 1.5rem;
  background: rgba(255,255,255,0.03);
  color: var(--neon-cyan);
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid rgba(0,229,255,0.2);
  border-radius: 0.75rem;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all 0.35s var(--ease-out-expo);
}

.btn-secondary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,229,255,0.08), rgba(180,77,255,0.05));
  opacity: 0;
  transition: opacity 0.35s ease;
}

.btn-secondary:hover {
  border-color: rgba(0,229,255,0.5);
  box-shadow: 0 4px 25px rgba(0,229,255,0.15), inset 0 0 20px rgba(0,229,255,0.05);
  transform: translateY(-2px);
}

.btn-secondary:hover::before {
  opacity: 1;
}

.btn-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--neon-cyan);
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  position: relative;
}

.btn-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--neon-cyan);
  transition: width 0.3s var(--ease-out-expo);
}

.btn-link:hover {
  color: var(--neon-green);
  gap: 0.75rem;
}

.btn-link:hover::after {
  width: 100%;
  background: var(--neon-green);
}

/* ============================================
   5. CARDS
   ============================================ */

/* Animated border glow wrapper */
.skill-card,
.project-card,
.glass-effect {
  position: relative;
}

.skill-card {
  background: var(--glass-bg);
  padding: 1.6rem;
  border-radius: 1rem;
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  transition: all 0.4s var(--ease-out-expo);
  overflow: hidden;
}

/* Gradient glow on hover */
.skill-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, transparent, transparent);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.skill-card:hover::before {
  background: linear-gradient(135deg, var(--neon-cyan), var(--neon-purple), var(--neon-pink));
  opacity: 1;
}

.skill-card:hover {
  border-color: transparent;
  box-shadow: 0 20px 60px rgba(0,229,255,0.1), 0 0 0 1px rgba(0,229,255,0.05);
  transform: translateY(-8px);
}

.skill-card .icon-container {
  margin-bottom: 1rem;
}

.project-card {
  background: var(--glass-bg);
  padding: 1.25rem;
  border-radius: 1rem;
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  transition: all 0.4s var(--ease-out-expo);
  cursor: pointer;
  overflow: hidden;
}

/* Animated border gradient on project cards */
.project-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, transparent, transparent);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.project-card:hover::before {
  background: linear-gradient(135deg, var(--neon-purple), var(--neon-pink), var(--neon-cyan));
  opacity: 1;
}

.project-card:hover {
  border-color: transparent;
  box-shadow: 0 20px 60px rgba(180,77,255,0.12), 0 0 40px rgba(180,77,255,0.05);
  transform: translateY(-8px) scale(1.01);
}

.project-card img {
  transition: transform 0.5s var(--ease-out-expo);
}

.project-card:hover img {
  transform: scale(1.08);
}

/* RSS Cards */
.rss-card {
  background: var(--glass-bg);
  padding: 1.25rem;
  border-radius: 0.75rem;
  border: 1px solid rgba(0,229,255,0.08);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: all 0.35s var(--ease-out-expo);
}

.rss-card:hover {
  box-shadow: 0 12px 40px rgba(0,229,255,0.08);
  transform: translateY(-4px);
  border-color: rgba(0,229,255,0.2);
}

.rss-card h4 {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
}

.rss-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.rss-excerpt {
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
}

.rss-link {
  color: var(--neon-cyan);
  font-weight: 600;
  text-decoration: none;
  transition: color 0.3s ease;
}

.rss-link:hover {
  color: var(--neon-green);
}

.rss-empty {
  color: var(--text-secondary);
  text-align: center;
  padding: 1.5rem 0;
}

/* News card */
.news-card {
  background: var(--glass-bg);
  padding: 2rem;
  border-radius: 1rem;
  border-left: 3px solid var(--neon-green);
  border-top: 1px solid var(--glass-border);
  border-right: 1px solid var(--glass-border);
  border-bottom: 1px solid var(--glass-border);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  transition: all 0.35s var(--ease-out-expo);
}

.news-card:hover {
  box-shadow: 0 12px 40px rgba(86,227,114,0.1), -4px 0 20px rgba(86,227,114,0.08);
  transform: translateY(-4px);
}

/* ============================================
   RSS FEED CARDS
   ============================================ */
.rss-controls {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

/* ============================================
   6. BADGES
   ============================================ */
.tech-badge {
  display: inline-block;
  padding: 0.45rem 0.9rem;
  font-size: 0.875rem;
  background: linear-gradient(135deg, rgba(0,229,255,0.1), rgba(180,77,255,0.06));
  color: var(--neon-cyan);
  border: 1px solid rgba(0,229,255,0.15);
  border-radius: 9999px;
  font-weight: 600;
  transition: all 0.3s var(--ease-out-expo);
  position: relative;
  overflow: hidden;
}

.tech-badge::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,229,255,0.2), rgba(180,77,255,0.15));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.tech-badge:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0,229,255,0.2);
  border-color: rgba(0,229,255,0.4);
}

.tech-badge:hover::before {
  opacity: 1;
}

.tech-badge-large {
  display: inline-block;
  padding: 0.6rem 1.2rem;
  font-size: 1rem;
  background: linear-gradient(90deg, rgba(255,110,199,0.08), rgba(180,77,255,0.06));
  color: var(--neon-pink);
  border: 1px solid rgba(255,110,199,0.12);
  border-radius: 0.5rem;
  font-weight: 700;
}

.skill-tag {
  display: inline-block;
  padding: 0.45rem 0.9rem;
  font-size: 0.875rem;
  background: linear-gradient(135deg, rgba(86,227,114,0.1), rgba(0,229,255,0.06));
  color: var(--neon-green);
  border: 1px solid rgba(86,227,114,0.15);
  border-radius: 0.5rem;
  font-weight: 600;
  transition: all 0.3s var(--ease-out-expo);
}

.skill-tag:hover {
  background: linear-gradient(135deg, rgba(86,227,114,0.2), rgba(0,229,255,0.12));
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(86,227,114,0.15);
}

.timeline-card {
  border: 1px solid rgba(98,201,197,0.24);
  background: linear-gradient(135deg, rgba(98,201,197,0.08), rgba(255,255,255,0.03));
}

.timeline-card:hover {
  border-color: rgba(98,201,197,0.5);
}

/* Niveaux de compétence honnêtes (maîtrisé / pratiqué / en apprentissage) */
.level-badge {
  display: inline-block;
  padding: 0.3rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 9999px;
  white-space: nowrap;
  border: 1px solid transparent;
}

.level-mastered {
  background: rgba(86,227,114,0.12);
  color: var(--neon-green);
  border-color: rgba(86,227,114,0.3);
}

.level-practiced {
  background: rgba(0,229,255,0.12);
  color: var(--neon-cyan);
  border-color: rgba(0,229,255,0.3);
}

.level-learning {
  background: rgba(180,77,255,0.12);
  color: var(--neon-purple);
  border-color: rgba(180,77,255,0.3);
}

/* ============================================
   7. NAVIGATION
   ============================================ */
.nav-link {
  position: relative;
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  padding: 0.5rem 0;
  transition: color 0.3s ease;
  letter-spacing: 0.02em;
}

header nav > div > a {
  white-space: nowrap;
}

header ul.hidden.md\:flex {
  column-gap: 1rem !important;
}

header ul.hidden.md\:flex > li {
  margin-left: 0 !important;
  margin-right: 0 !important;
}

@media (min-width: 768px) {
  .mobile-menu {
    display: none !important;
  }

  header nav > div > a {
    max-width: none !important;
    font-size: 1rem !important;
  }

  header nav > div {
    display: grid !important;
    grid-template-columns: minmax(150px, 1fr) auto minmax(150px, 1fr);
    align-items: center;
  }

  header ul.hidden.md\:flex {
    position: static;
    grid-column: 2;
    justify-content: center;
    transform: none;
    white-space: nowrap;
  }

  header nav > div > a {
    grid-column: 1;
  }

  header nav > div > button {
    grid-column: 3;
    justify-self: end;
  }
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--neon-cyan), var(--neon-purple));
  transition: width 0.4s var(--ease-out-expo);
  box-shadow: 0 0 8px var(--neon-cyan);
}

.nav-link:hover {
  color: var(--neon-cyan);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link.active {
  color: var(--neon-cyan);
}

.nav-link.active::after {
  width: 100%;
}

/* ============================================
   8. ANIMATIONS
   ============================================ */

/* Neon pulse — hero profile ring */
@keyframes neon-pulse {
  0%, 100% {
    box-shadow:
      0 0 5px var(--neon-cyan),
      0 0 15px var(--neon-cyan),
      0 0 30px rgba(0,229,255,0.3);
  }
  50% {
    box-shadow:
      0 0 10px var(--neon-cyan),
      0 0 25px var(--neon-cyan),
      0 0 50px rgba(0,229,255,0.4),
      0 0 80px rgba(0,229,255,0.15);
  }
}

.neon-pulse {
  animation: neon-pulse 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.float-animation {
  animation: float 4s ease-in-out infinite;
}

/* Fade-in-up with scale for extra depth feel */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px) scale(0.97);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.fade-in-up {
  animation: fadeInUp 0.7s var(--ease-out-expo) forwards;
}

/* Staggered animation delays for grid children */
[data-animate].fade-in-up {
  opacity: 0;
  animation-fill-mode: forwards;
}

/* Shimmer loading effect */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* Subtle breathing glow for icons */
@keyframes breathe {
  0%, 100% { opacity: 0.7; }
  50% { opacity: 1; }
}

/* Rotate gradient for animated borders */
@keyframes borderRotate {
  0% { --angle: 0deg; }
  100% { --angle: 360deg; }
}

/* ============================================
   9. UTILITY CLASSES
   ============================================ */
.hover-lift {
  transition: transform 0.4s var(--ease-out-expo), box-shadow 0.4s ease;
}

.hover-lift:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

/* Filter bar for projects page */
.filter-bar {
  gap: 0.25rem;
}

.filter-btn {
  background: transparent;
  color: var(--text-secondary);
  border-radius: 9999px;
  border: 1px solid transparent;
  transition: all 0.3s var(--ease-out-expo);
}

.filter-btn:hover {
  background: rgba(0,229,255,0.08);
  color: var(--neon-cyan);
}

.filter-btn.active {
  background: linear-gradient(90deg, rgba(0,229,255,0.15), rgba(180,77,255,0.08));
  color: var(--neon-cyan);
  border-color: rgba(0,229,255,0.25);
  box-shadow: 0 4px 20px rgba(0,229,255,0.1);
}

.glass-effect {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  box-shadow: 0 8px 40px rgba(0,0,0,0.2), var(--shadow-accent-a);
  border-radius: 1rem;
  overflow: hidden;
}

/* Animated border on glass-effect hover */
.glass-effect::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, transparent, transparent);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.5s ease;
  pointer-events: none;
}

.glass-effect:hover::before {
  background: linear-gradient(135deg, var(--neon-cyan), var(--neon-purple));
  opacity: 0.6;
}

.stat-box {
  text-align: center;
  padding: 1.5rem;
  background: var(--glass-bg);
  border-radius: 0.75rem;
  border: 1px solid rgba(0,229,255,0.15);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: all 0.35s var(--ease-out-expo);
}

.stat-box:hover {
  border-color: rgba(0,229,255,0.4);
  box-shadow: 0 8px 30px rgba(0,229,255,0.1);
  transform: translateY(-3px);
}

/* Section divider glow line */
.section-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--neon-cyan), var(--neon-purple), transparent);
  opacity: 0.3;
  margin: 0 auto;
  max-width: 60%;
}

/* ============================================
   10. MOBILE MENU
   ============================================ */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  background: rgba(10, 14, 26, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  padding-top: 60px;
}

.mobile-menu nav {
  text-align: center;
  width: 100%;
  padding: 0 1.5rem;
}

.mobile-menu a {
  display: block;
  color: var(--text-primary);
  font-size: 1.25rem;
  font-weight: 600;
  text-decoration: none;
  padding: 1rem 1.5rem;
  margin: 0.5rem 0;
  border-radius: 0.75rem;
  transition: all 0.3s var(--ease-out-expo);
  background: rgba(255,255,255,0.02);
  border: 1px solid transparent;
}

.mobile-menu a:hover,
.mobile-menu a:active {
  color: var(--neon-cyan);
  background: rgba(0,229,255,0.08);
  border-color: rgba(0,229,255,0.15);
  box-shadow: 0 4px 20px rgba(0,229,255,0.08);
}

/* ============================================
   11. RESPONSIVE UTILITIES
   ============================================ */
@media (max-width: 480px) {
  html {
    font-size: 14px;
  }

  .container {
    padding-left: 1rem !important;
    padding-right: 1rem !important;
  }

  h1 {
    font-size: 1.75rem !important;
    line-height: 1.2;
  }

  h2 {
    font-size: 1.5rem !important;
  }

  h3 {
    font-size: 1.25rem !important;
  }

  .skill-card, .project-card, .news-card, .rss-card {
    padding: 1rem;
  }

  .glass-effect {
    padding: 1rem !important;
  }

  .btn-primary, .btn-secondary {
    padding: 0.6rem 1rem;
    font-size: 0.875rem;
    width: 100%;
    text-align: center;
  }

  .tech-badge {
    padding: 0.35rem 0.7rem;
    font-size: 0.75rem;
  }

  .min-h-screen {
    min-height: 100vh;
    min-height: 100dvh;
  }

  .grid {
    gap: 1rem !important;
  }

  .profile-image {
    max-width: 200px;
    max-height: 200px;
  }

  /* VT article grid: stack image above text */
  article .grid.md\\:grid-cols-3 {
    grid-template-columns: 1fr !important;
  }

  article .md\\:col-span-1,
  article .md\\:col-span-2 {
    grid-column: span 1 !important;
  }

  /* Footer centered on mobile */
  footer .flex.items-center {
    flex-direction: column;
    text-align: center;
  }

  /* RSS grid single column on small phones */
  .lg\\:grid-cols-4 {
    grid-template-columns: 1fr !important;
  }
}

@media (max-width: 768px) {
  .skill-card, .project-card, .news-card {
    padding: 1.25rem;
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.75rem;
  }

  .grid-cols-2,
  .md\\:grid-cols-2,
  .grid-cols-3,
  .md\\:grid-cols-3 {
    grid-template-columns: 1fr !important;
  }

  /* 4-col RSS grid to 2 cols on tablet */
  .lg\\:grid-cols-4 {
    grid-template-columns: 1fr 1fr !important;
  }

  footer .grid {
    grid-template-columns: 1fr !important;
    text-align: center;
  }

  footer .flex.items-center.gap-2 {
    justify-content: center;
  }

  header nav {
    padding: 0.75rem 1rem;
  }

  header .text-2xl {
    font-size: 1.25rem;
  }

  section {
    padding-top: 3rem !important;
    padding-bottom: 3rem !important;
  }

  .py-20 {
    padding-top: 3rem !important;
    padding-bottom: 3rem !important;
  }

  .py-16 {
    padding-top: 2.5rem !important;
    padding-bottom: 2.5rem !important;
  }

  .flex-wrap {
    gap: 0.5rem;
  }

  .text-center-mobile {
    text-align: center !important;
  }

  .hidden-mobile {
    display: none !important;
  }

  /* VT article grid: force single-column on mobile */
  article .grid {
    grid-template-columns: 1fr !important;
  }

  article .md\\:col-span-1,
  article .md\\:col-span-2 {
    grid-column: span 1 !important;
  }

  /* VT article image: full-width on mobile */
  article img.aspect-video {
    max-height: 220px;
  }

  /* Hero section: don't force min-h-screen on mobile */
  .min-h-screen {
    min-height: auto !important;
    padding-top: 4rem;
    padding-bottom: 4rem;
  }

  /* Competence iframe responsive */
  iframe {
    min-height: 600px !important;
  }

  /* Filter bar wrapping */
  .filter-bar {
    flex-wrap: wrap;
  }

  /* Hide particles on mobile for performance */
  #particles-canvas {
    display: none;
  }
}

/* Tablet adjustments */
@media (min-width: 769px) and (max-width: 1024px) {
  .container {
    padding-left: 2rem;
    padding-right: 2rem;
  }

  h1 {
    font-size: 2.5rem;
  }
}

/* Fix for iOS Safari address bar */
@supports (-webkit-touch-callout: none) {
  .min-h-screen {
    min-height: -webkit-fill-available;
  }

  .mobile-menu {
    height: -webkit-fill-available;
  }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
  .btn-primary:hover,
  .btn-secondary:hover,
  .skill-card:hover,
  .project-card:hover {
    transform: none;
  }

  .nav-link,
  .btn-primary,
  .btn-secondary,
  button {
    min-height: 44px;
    min-width: 44px;
  }

  .hover-lift:hover {
    transform: none;
  }

  /* No animated borders on touch */
  .skill-card::before,
  .project-card::before,
  .glass-effect::before {
    display: none;
  }
}

/* ============================================
   12. PROSE / RICH TEXT CONTENT
   ============================================ */
.prose {
  max-width: 65ch;
  color: var(--text-secondary);
}

/* HERO CONTRAST FIXES */
.hero-contrast { color: var(--text-primary); }
.hero-contrast p, .hero-contrast .text-gray-300, .hero-contrast .text-gray-400 {
  color: var(--text-secondary) !important;
  font-weight: 500;
  line-height: 1.7;
}
.hero-contrast .btn-primary, .hero-contrast .btn-secondary { box-shadow: 0 8px 30px rgba(0,0,0,0.15); }
.hero-contrast .text-glow-cyan { text-shadow: 0 0 10px rgba(0,229,255,0.8), 0 0 30px rgba(0,229,255,0.4); color: var(--neon-cyan); }
.hero-contrast h1 { color: var(--text-primary); text-shadow: none; font-size: clamp(2.5rem, 6vw, 4rem); }
.hero-contrast p { color: var(--text-secondary); }

@media (max-width: 768px) {
  .hero-contrast p { font-size: 1rem; }
}

/* Theme presets (variable overrides) */
.theme-pastel {
  --accent-a: #66c2ff;
  --accent-b: #ffc7e6;
  --accent-c: #9feab6;
  --accent-d: #fff0b8;
  --text-primary: #072033;
  --bg-primary: #f7fbff;
  --bg-secondary: #f2f8ff;
  --bg-tertiary: #ffffff;
  --bg-surface: #ffffff;
}

.theme-vibrant {
  --bg-primary: #0b1225;
  --bg-secondary: #101a33;
  --bg-tertiary: #142040;
  --bg-surface: #121b34;
  --accent-a: #62c9c5;
  --accent-b: #91a5b8;
  --accent-c: #8fc8b4;
  --accent-d: #c7b98a;
  --neon-cyan: #62c9c5;
  --neon-green: #8fc8b4;
  --neon-purple: #8495aa;
  --neon-pink: #b9879e;
  --text-primary: #f0f5ff;
  --text-secondary: #b8cce6;
}

.prose h2 {
  color: var(--neon-cyan);
  margin-top: 2rem;
  margin-bottom: 1rem;
}

.prose h3 {
  color: var(--text-primary);
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
}

.prose p {
  margin-bottom: 1rem;
}

.prose ul, .prose ol {
  margin-left: 1.5rem;
  margin-bottom: 1rem;
}

.prose li {
  margin-bottom: 0.5rem;
}

.prose a {
  color: var(--neon-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.prose a:hover {
  color: var(--neon-green);
}

/* ============================================
   13. ACCESSIBILITY
   ============================================ */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

:focus-visible {
  outline: 2px solid var(--neon-cyan);
  outline-offset: 2px;
}

/* Hide Alpine.js elements until loaded */
[x-cloak] {
  display: none !important;
}

/* Ensure mobile menu is above everything */
.mobile-menu {
  z-index: 9999 !important;
}

/* Fix for header on mobile */
header.fixed {
  z-index: 9998;
}

/* Header must not clip mobile menu */
header.glass-effect {
  overflow: visible;
}

/* Prevent body scroll when mobile menu is open */
body.menu-open {
  overflow: hidden;
  position: fixed;
  width: 100%;
}

/* ============================================
   14. CURSOR GLOW EFFECT (desktop only)
   ============================================ */
.cursor-glow {
  position: fixed !important;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 1;
  background: radial-gradient(circle, rgba(0,229,255,0.06) 0%, transparent 70%);
  transform: translate(-50%, -50%);
  transition: opacity 0.3s ease;
  mix-blend-mode: screen;
}

@media (hover: none) {
  .cursor-glow { display: none; }
}

/* ============================================
   15. ENHANCED FOOTER
   ============================================ */
footer {
  position: relative;
}

footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 10%;
  right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--neon-cyan), var(--neon-purple), transparent);
  opacity: 0.4;
}