/* ═══════════════════════════════════════════════
   about.css — ULTRA PREMIUM EDITION
   Spotlight · Grid Architecture · Magnetic Hover
   Layered Glass · Cinematic Reveals · Variable Type
   Couleurs originales : #667eea / #764ba2 / #f093fb
   ═══════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,600;1,300;1,400&family=DM+Sans:ital,opsz,wght@0,9..40,200;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,200&family=JetBrains+Mono:wght@300;400&display=swap');

/* ═══════════════════════════════════════════════
   TOKENS
   ═══════════════════════════════════════════════ */
:root {
  /* Brand */
  --c-violet: #667eea;
  --c-purple: #764ba2;
  --c-rose: #f093fb;
  --c-coral: #f5576c;

  /* Derived */
  --c-violet-dim: rgba(102, 126, 234, 0.18);
  --c-violet-glow: rgba(102, 126, 234, 0.45);
  --c-rose-dim: rgba(240, 147, 251, 0.15);
  --c-coral-dim: rgba(245, 87, 108, 0.15);

  /* Surface */
  --surface-0: rgba(255, 255, 255, 0.025);
  --surface-1: rgba(255, 255, 255, 0.05);
  --surface-2: rgba(255, 255, 255, 0.08);
  --surface-3: rgba(255, 255, 255, 0.12);

  /* Borders */
  --border-dim: rgba(255, 255, 255, 0.06);
  --border-mid: rgba(255, 255, 255, 0.12);
  --border-bright: rgba(255, 255, 255, 0.22);

  /* Text */
  --t-full: rgba(255, 255, 255, 1);
  --t-hi: rgba(255, 255, 255, 0.92);
  --t-mid: rgba(255, 255, 255, 0.6);
  --t-low: rgba(255, 255, 255, 0.35);
  --t-ghost: rgba(255, 255, 255, 0.15);
  --t-accent: #c4b5fd;
  /* violet clair */

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Spacing scale */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 24px;
  --sp-6: 32px;
  --sp-7: 48px;
  --sp-8: 64px;
  --sp-9: 96px;

  /* Radius */
  --r-sm: 10px;
  --r-md: 18px;
  --r-lg: 26px;
  --r-xl: 36px;
}

/* ═══════════════════════════════════════════════
   BASE
   ═══════════════════════════════════════════════ */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.about-page {
  font-family: 'DM Sans', system-ui, sans-serif;
  background: #08080f;
  color: var(--t-full);
  overflow-x: hidden;
  padding-bottom: 0;
  /* Variable font smoothing */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "ss01" 1, "ss02" 1, "cv01" 1;
}

/* ═══════════════════════════════════════════════
   BACKGROUND SYSTEM — 4 couches
   ═══════════════════════════════════════════════ */

/* Couche 1 : gradient de base */
.bg-animation {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
  background: radial-gradient(ellipse 120% 80% at 15% 10%, rgba(102, 126, 234, 0.22) 0%, transparent 55%),
    radial-gradient(ellipse 80% 100% at 90% 80%, rgba(118, 75, 162, 0.18) 0%, transparent 55%),
    radial-gradient(ellipse 60% 60% at 50% 50%, rgba(240, 147, 251, 0.07) 0%, transparent 60%),
    #08080f;
}

/* Couche 2 : grille architecturale */
.bg-animation::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.026) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.026) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, black 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, black 20%, transparent 75%);
}

/* Couche 3 : grain cinématique */
.bg-animation::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
  opacity: 0.038;
  animation: grainShift 0.4s steps(1) infinite;
  pointer-events: none;
  z-index: 1;
}

@keyframes grainShift {
  0% {
    transform: translate(0, 0);
  }

  25% {
    transform: translate(-2%, -1%);
  }

  50% {
    transform: translate(1%, 2%);
  }

  75% {
    transform: translate(-1%, 1%);
  }

  100% {
    transform: translate(2%, -2%);
  }
}

/* Couche 4 : blobs animés */
.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  will-change: transform;
  animation: blobOrbit 24s ease-in-out infinite;
}

.blob-1 {
  width: 700px;
  height: 700px;
  background: radial-gradient(circle at 40% 40%, rgba(102, 126, 234, 0.28), transparent 65%);
  top: -20%;
  left: -15%;
  animation-delay: 0s;
}

.blob-2 {
  width: 550px;
  height: 550px;
  background: radial-gradient(circle at 60% 60%, rgba(240, 147, 251, 0.2), transparent 65%);
  top: 30%;
  right: -12%;
  animation-delay: -8s;
  animation-duration: 20s;
}

.blob-3 {
  width: 480px;
  height: 480px;
  background: radial-gradient(circle at 50% 50%, rgba(245, 87, 108, 0.14), transparent 65%);
  bottom: 0;
  left: 25%;
  animation-delay: -16s;
  animation-duration: 28s;
}

@keyframes blobOrbit {
  0% {
    transform: translate(0, 0) rotate(0deg) scale(1);
  }

  25% {
    transform: translate(35px, -45px) rotate(90deg) scale(1.06);
  }

  50% {
    transform: translate(-20px, 60px) rotate(180deg) scale(0.94);
  }

  75% {
    transform: translate(50px, 20px) rotate(270deg) scale(1.03);
  }

  100% {
    transform: translate(0, 0) rotate(360deg) scale(1);
  }
}

/* ═══════════════════════════════════════════════
   SPOTLIGHT CURSOR (desktop)
   ═══════════════════════════════════════════════ */
.spotlight {
  position: fixed;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(102, 126, 234, 0.08) 0%, transparent 65%);
  pointer-events: none;
  z-index: 2;
  transform: translate(-50%, -50%);
  transition: transform 0.15s linear;
}

/* ═══════════════════════════════════════════════
   SCROLL PROGRESS — fil lumineux
   ═══════════════════════════════════════════════ */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 1.5px;
  width: 0%;
  background: linear-gradient(90deg,
      var(--c-violet) 0%,
      var(--c-rose) 50%,
      var(--c-coral) 100%);
  z-index: 1000;
  box-shadow:
    0 0 6px var(--c-violet-glow),
    0 0 20px rgba(240, 147, 251, 0.4);
  transition: width 0.08s linear;
}

.scroll-progress::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--c-rose);
  box-shadow: 0 0 10px var(--c-rose), 0 0 20px var(--c-rose);
}

/* ═══════════════════════════════════════════════
   BACK BUTTON
   ═══════════════════════════════════════════════ */
.back-btn {
  position: fixed;
  top: 24px;
  left: 24px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 11px 20px 11px 16px;
  background: var(--surface-1);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid var(--border-mid);
  border-radius: 50px;
  color: var(--t-hi);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.03em;
  z-index: 100;
  transition: all 0.35s var(--ease-out);
  /* Hover line on left */
  overflow: hidden;
}

.back-btn::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 2px;
  height: 100%;
  background: linear-gradient(180deg, var(--c-violet), var(--c-rose));
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 0.3s var(--ease-out);
  border-radius: 2px;
}

.back-btn:hover {
  background: var(--surface-2);
  border-color: var(--border-bright);
  box-shadow: 0 0 0 1px rgba(102, 126, 234, 0.2), 0 8px 32px rgba(0, 0, 0, 0.3);
  padding-left: 20px;
}

.back-btn:hover::before {
  transform: scaleY(1);
}

.back-btn svg {
  transition: transform 0.35s var(--ease-spring);
  flex-shrink: 0;
}

.back-btn:hover svg {
  transform: translateX(-5px);
}

/* ═══════════════════════════════════════════════
   CONTAINER
   ═══════════════════════════════════════════════ */
.container {
  position: relative;
  z-index: 3;
  max-width: 860px;
  margin: 0 auto;
  padding: 0 var(--sp-5);
}

/* ═══════════════════════════════════════════════
   HEADER — cinéma total
   ═══════════════════════════════════════════════ */
.about-header {
  position: relative;
  padding: var(--sp-9) 0 var(--sp-7);
  text-align: center;
  z-index: 3;
}

/* Lignes de scan décoratives */
.about-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(0deg,
      transparent,
      transparent 3px,
      rgba(255, 255, 255, 0.008) 3px,
      rgba(255, 255, 255, 0.008) 4px);
  pointer-events: none;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black, transparent 75%);
}

.header-content {
  animation: heroReveal 1.4s var(--ease-out) both;
}

@keyframes heroReveal {
  0% {
    opacity: 0;
    transform: translateY(80px) scale(0.92);
    filter: blur(12px);
  }

  60% {
    filter: blur(0);
  }

  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0);
  }
}

/* ═══════════════════════════════════════════════
   AVATAR — orbite magnétique
   ═══════════════════════════════════════════════ */
.avatar-container {
  position: relative;
  display: inline-block;
  margin-bottom: var(--sp-7);
}

/* Halo externe pulsant */
.avatar-container::before {
  content: '';
  position: absolute;
  inset: -24px;
  border-radius: 50%;
  background: conic-gradient(from 0deg,
      rgba(102, 126, 234, 0.12),
      rgba(240, 147, 251, 0.2),
      rgba(245, 87, 108, 0.12),
      rgba(102, 126, 234, 0.12));
  animation: haloPulse 4s ease-in-out infinite;
  filter: blur(16px);
}

@keyframes haloPulse {

  0%,
  100% {
    transform: scale(1);
    opacity: 0.6;
  }

  50% {
    transform: scale(1.12);
    opacity: 1;
  }
}

.avatar {
  width: 128px;
  height: 128px;
  background: linear-gradient(145deg, rgba(102, 126, 234, 0.3), rgba(118, 75, 162, 0.4));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  animation: avatarFloat 5s ease-in-out infinite;
  /* Glassmorphism */
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

/* Anneau conic tournant */
.avatar::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 50%;
  background: conic-gradient(from 0deg,
      var(--c-violet),
      var(--c-rose),
      var(--c-coral),
      var(--c-purple),
      var(--c-violet));
  z-index: -1;
  animation: conicSpin 3s linear infinite;
}

/* Anneau intérieur flou */
.avatar::after {
  content: '';
  position: absolute;
  inset: 2px;
  border-radius: 50%;
  background: #0e0e1a;
  z-index: -1;
}

@keyframes avatarFloat {

  0%,
  100% {
    transform: translateY(0) rotate(0deg);
  }

  30% {
    transform: translateY(-16px) rotate(1.5deg);
  }

  70% {
    transform: translateY(-8px) rotate(-1deg);
  }
}

@keyframes conicSpin {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

.avatar-emoji {
  font-size: 54px;
  position: relative;
  z-index: 2;
  filter: drop-shadow(0 0 20px rgba(102, 126, 234, 0.6));
}

/* Status badge */
.status-badge {
  position: absolute;
  bottom: 2px;
  right: -12px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: rgba(207, 81, 102, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(16px);
  border-radius: 50px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: white;
  box-shadow: 0 0 20px rgba(207, 81, 102, 0.5), 0 4px 12px rgba(0, 0, 0, 0.3);
  animation: avatarFloat 5s ease-in-out infinite;
  animation-delay: -2.5s;
}

.status-dot {
  width: 6px;
  height: 6px;
  background: white;
  border-radius: 50%;
  animation: statusPulse 1.6s ease-in-out infinite;
}

@keyframes statusPulse {

  0%,
  100% {
    transform: scale(1);
    opacity: 1;
  }

  50% {
    transform: scale(1.5);
    opacity: 0.5;
  }
}

/* ═══════════════════════════════════════════════
   TITRE — typographie éditoriale
   ═══════════════════════════════════════════════ */
.page-title {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: clamp(42px, 7vw, 78px);
  font-weight: 300;
  font-style: italic;
  line-height: 1.05;
  letter-spacing: -1px;
  margin-bottom: var(--sp-3);
  /* Dégradé texte */
  background: linear-gradient(135deg,
      rgba(255, 255, 255, 1) 0%,
      rgba(196, 181, 253, 0.9) 35%,
      rgba(255, 255, 255, 0.8) 70%,
      rgba(240, 147, 251, 0.7) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  background-size: 200% 200%;
  animation: titleGradientShift 8s ease-in-out infinite;
}

@keyframes titleGradientShift {

  0%,
  100% {
    background-position: 0% 50%;
  }

  50% {
    background-position: 100% 50%;
  }
}

.page-subtitle {
  font-size: clamp(14px, 2vw, 18px);
  color: var(--t-mid);
  font-weight: 200;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  /* Barre sous le sous-titre */
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.page-subtitle::before,
.page-subtitle::after {
  content: '';
  display: inline-block;
  width: 32px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--t-ghost));
}

.page-subtitle::after {
  background: linear-gradient(90deg, var(--t-ghost), transparent);
}

/* ═══════════════════════════════════════════════
   CONTENT SECTIONS — glassmorphism stratifié
   ═══════════════════════════════════════════════ */
.content-section {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-lg);
  padding: var(--sp-7) var(--sp-6);
  margin-bottom: var(--sp-5);

  /* Glass layers */
  background:
    linear-gradient(145deg, var(--surface-1) 0%, var(--surface-0) 100%);
  backdrop-filter: blur(40px) saturate(160%);
  -webkit-backdrop-filter: blur(40px) saturate(160%);

  /* Bord lumineux subtil */
  border: 1px solid var(--border-dim);

  /* Scroll reveal : état initial */
  opacity: 0;
  transform: translateY(56px) translateX(-24px) scale(0.975);
  transition:
    opacity 1s var(--ease-out),
    transform 1s var(--ease-out),
    box-shadow 0.4s var(--ease-in-out),
    border-color 0.4s ease;
}

.content-section:nth-child(even) {
  transform: translateY(56px) translateX(24px) scale(0.975);
}

.content-section.is-visible {
  opacity: 1;
  transform: translateY(0) translateX(0) scale(1);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.06) inset,
    0 32px 80px rgba(0, 0, 0, 0.45),
    0 0 0 1px rgba(255, 255, 255, 0.04);
}

/* Ligne lumineuse en haut (sheen) */
.content-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg,
      transparent 0%,
      rgba(255, 255, 255, 0.14) 25%,
      rgba(255, 255, 255, 0.28) 50%,
      rgba(255, 255, 255, 0.14) 75%,
      transparent 100%);
}

/* Glow corner */
.content-section::after {
  content: '';
  position: absolute;
  top: -60px;
  left: -60px;
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, var(--c-violet-dim), transparent 60%);
  pointer-events: none;
  transition: opacity 0.5s ease;
}

/* Hover : border s'illumine + glow corner intensifie */
.content-section:hover {
  border-color: rgba(102, 126, 234, 0.14);
}

/* ═══════════════════════════════════════════════
   HIGHLIGHT SECTION (Timeline)
   ═══════════════════════════════════════════════ */
.content-section.highlight {
  background:
    linear-gradient(145deg,
      rgba(102, 126, 234, 0.12) 0%,
      rgba(118, 75, 162, 0.18) 60%,
      rgba(240, 147, 251, 0.08) 100%);
  border-color: rgba(102, 126, 234, 0.2);
}

.content-section.highlight::after {
  background: radial-gradient(circle, rgba(102, 126, 234, 0.12), transparent 60%);
  width: 300px;
  height: 300px;
}

/* Ornement ligne droite sur la section highlight */
.content-section.highlight::before {
  background: linear-gradient(90deg,
      transparent,
      rgba(102, 126, 234, 0.4) 40%,
      rgba(240, 147, 251, 0.4) 60%,
      transparent);
  height: 1px;
}

/* ═══════════════════════════════════════════════
   SECTION ICON
   ═══════════════════════════════════════════════ */
.section-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  font-size: 26px;
  margin-bottom: var(--sp-4);
  background: var(--surface-2);
  border: 1px solid var(--border-mid);
  border-radius: var(--r-md);
  animation: iconOrbit 4s ease-in-out infinite;
  position: relative;
}

.section-icon::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: linear-gradient(145deg, rgba(102, 126, 234, 0.3), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.content-section:hover .section-icon::after {
  opacity: 1;
}

@keyframes iconOrbit {

  0%,
  100% {
    transform: translateY(0) rotate(0deg);
  }

  50% {
    transform: translateY(-6px) rotate(4deg);
  }
}

/* ═══════════════════════════════════════════════
   TYPOGRAPHIE
   ═══════════════════════════════════════════════ */
.content-section h2 {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(26px, 3.5vw, 40px);
  font-weight: 400;
  font-style: italic;
  color: var(--t-hi);
  margin-bottom: var(--sp-4);
  letter-spacing: -0.3px;
  line-height: 1.2;
}

.content-section p {
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--t-mid);
  margin-bottom: var(--sp-4);
  font-weight: 300;
  max-width: 68ch;
}

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

.content-section strong {
  color: var(--t-accent);
  font-weight: 500;
  /* Underline animé */
  background-image: linear-gradient(90deg, rgba(196, 181, 253, 0.4), rgba(196, 181, 253, 0.4));
  background-repeat: no-repeat;
  background-size: 0% 1px;
  background-position: 0% 100%;
  transition: background-size 0.4s var(--ease-out);
}

.content-section:hover strong {
  background-size: 100% 1px;
}

.highlight strong {
  color: var(--t-full);
  background-image: linear-gradient(90deg, rgba(255, 255, 255, 0.35), rgba(240, 147, 251, 0.35));
  text-shadow: none;
}

/* ═══════════════════════════════════════════════
   TIMELINE — révélation séquentielle
   ═══════════════════════════════════════════════ */
.timeline {
  margin-top: var(--sp-6);
}

.timeline-item {
  display: flex;
  gap: var(--sp-5);
  margin-bottom: var(--sp-6);
  position: relative;
  opacity: 0;
  transform: translateX(-48px);
  transition:
    opacity 0.8s var(--ease-out),
    transform 0.8s var(--ease-out);
}

.timeline-item.is-visible {
  opacity: 1;
  transform: translateX(0);
}

/* Délais staggerés */
.timeline-item:nth-child(1) {
  transition-delay: 0.06s;
}

.timeline-item:nth-child(2) {
  transition-delay: 0.18s;
}

.timeline-item:nth-child(3) {
  transition-delay: 0.30s;
}

.timeline-item:nth-child(4) {
  transition-delay: 0.42s;
}

.timeline-item:nth-child(5) {
  transition-delay: 0.54s;
}

/* Ligne verticale */
.timeline-item:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 23px;
  top: 50px;
  width: 1px;
  height: calc(100% - 20px);
  background: linear-gradient(180deg,
      rgba(255, 255, 255, 0.2) 0%,
      rgba(102, 126, 234, 0.15) 50%,
      transparent 100%);
}

/* Marker */
.timeline-marker {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: var(--surface-2);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-mid);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 19px;
  z-index: 1;
  transition:
    transform 0.4s var(--ease-spring),
    box-shadow 0.4s ease,
    border-color 0.3s ease,
    background 0.3s ease;
}

.timeline-item:hover .timeline-marker {
  transform: scale(1.18) rotate(12deg);
  box-shadow: 0 0 0 8px rgba(102, 126, 234, 0.08), 0 0 24px rgba(102, 126, 234, 0.3);
  border-color: rgba(102, 126, 234, 0.5);
  background: rgba(102, 126, 234, 0.15);
}

.timeline-content h3 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 21px;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--t-hi);
  letter-spacing: -0.2px;
}

.timeline-content p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.75;
  max-width: 58ch;
}

/* ═══════════════════════════════════════════════
   TECH GRID — magnetic cards
   ═══════════════════════════════════════════════ */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: var(--sp-4);
  margin-top: var(--sp-6);
}

.tech-card {
  text-align: center;
  padding: var(--sp-6) var(--sp-4);
  background: var(--surface-1);
  border: 1px solid var(--border-dim);
  border-radius: var(--r-md);
  cursor: default;
  position: relative;
  overflow: hidden;

  opacity: 0;
  transform: translateY(28px) scale(0.94);
  transition:
    opacity 0.7s var(--ease-out),
    transform 0.7s var(--ease-out),
    background 0.35s ease,
    box-shadow 0.35s ease,
    border-color 0.35s ease;
}

.tech-card.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.tech-card:nth-child(1) {
  transition-delay: 0.00s;
}

.tech-card:nth-child(2) {
  transition-delay: 0.08s;
}

.tech-card:nth-child(3) {
  transition-delay: 0.16s;
}

.tech-card:nth-child(4) {
  transition-delay: 0.24s;
}

/* Gradient overlay au hover */
.tech-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--mx, 50%) var(--my, 50%), rgba(102, 126, 234, 0.12), transparent 65%);
  opacity: 0;
  transition: opacity 0.35s ease;
  border-radius: inherit;
}

/* Sheen top */
.tech-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-mid), transparent);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.tech-card:hover {
  border-color: rgba(102, 126, 234, 0.3);
  box-shadow:
    0 0 0 1px rgba(102, 126, 234, 0.1),
    0 16px 48px rgba(0, 0, 0, 0.4),
    0 0 40px rgba(102, 126, 234, 0.08);
  transform: translateY(-10px) scale(1.025) !important;
}

.tech-card:hover::before,
.tech-card:hover::after {
  opacity: 1;
}

.tech-icon {
  font-size: 40px;
  display: block;
  margin-bottom: var(--sp-3);
  transition: transform 0.45s var(--ease-spring), filter 0.35s ease;
}

.tech-card:hover .tech-icon {
  transform: scale(1.22) rotate(-6deg);
  filter: drop-shadow(0 0 12px rgba(102, 126, 234, 0.5));
}

.tech-card h3 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 17px;
  font-weight: 500;
  color: var(--t-hi);
  margin-bottom: 6px;
  letter-spacing: 0.02em;
}

.tech-card p {
  font-size: 12.5px;
  color: var(--t-low);
  margin: 0;
  font-weight: 300;
  line-height: 1.5;
}

/* ═══════════════════════════════════════════════
   STATS SECTION — chiffres monumentaux
   ═══════════════════════════════════════════════ */
.stats-section {
  background:
    radial-gradient(ellipse 100% 120% at 50% 0%, rgba(240, 147, 251, 0.1), transparent 60%),
    linear-gradient(145deg, rgba(240, 147, 251, 0.08), rgba(245, 87, 108, 0.1));
  border-color: rgba(240, 147, 251, 0.15);
}

.stats-section::after {
  background: radial-gradient(circle, rgba(245, 87, 108, 0.08), transparent 60%);
  right: -60px;
  left: auto;
  top: -60px;
}

.stats-section h2 {
  text-align: center;
  margin-bottom: var(--sp-7);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: var(--sp-4);
}

.stat-box {
  text-align: center;
  padding: var(--sp-6) var(--sp-4);
  background: var(--surface-1);
  border: 1px solid var(--border-dim);
  border-radius: var(--r-md);
  position: relative;
  overflow: hidden;

  opacity: 0;
  transform: translateY(40px) scale(0.9);
  transform-origin: bottom center;
  transition:
    opacity 0.8s var(--ease-out),
    transform 0.8s var(--ease-spring),
    box-shadow 0.35s ease,
    border-color 0.35s ease;
}

.stat-box.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.stat-box:nth-child(1) {
  transition-delay: 0.05s;
}

.stat-box:nth-child(2) {
  transition-delay: 0.14s;
}

.stat-box:nth-child(3) {
  transition-delay: 0.23s;
}

.stat-box:nth-child(4) {
  transition-delay: 0.32s;
}

/* Scan line animation */
.stat-box::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(240, 147, 251, 0.5), transparent);
  top: -1px;
  animation: scanLine 4s ease-in-out infinite;
  animation-play-state: paused;
}

.stat-box.is-visible::before {
  animation-play-state: running;
}

@keyframes scanLine {
  0% {
    top: 0%;
    opacity: 0;
  }

  10% {
    opacity: 1;
  }

  90% {
    opacity: 1;
  }

  100% {
    top: 100%;
    opacity: 0;
  }
}

.stat-box:hover {
  transform: translateY(-8px) scale(1.04) !important;
  border-color: rgba(240, 147, 251, 0.25);
  box-shadow:
    0 0 0 1px rgba(240, 147, 251, 0.1),
    0 20px 56px rgba(0, 0, 0, 0.4),
    0 0 40px rgba(240, 147, 251, 0.08);
}

.stat-icon {
  font-size: 36px;
  display: block;
  margin-bottom: var(--sp-3);
  transition: filter 0.35s ease;
}

.stat-box:hover .stat-icon {
  filter: drop-shadow(0 0 14px rgba(240, 147, 251, 0.6));
}

.stat-value {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(38px, 5.5vw, 58px);
  font-weight: 300;
  color: var(--t-full);
  line-height: 1;
  margin-bottom: var(--sp-2);
  letter-spacing: -2px;
  /* Glow quand visible */
  transition: text-shadow 0.5s ease;
}

.stat-box.is-visible .stat-value {
  text-shadow: 0 0 40px rgba(240, 147, 251, 0.3);
}

.stat-label {
  font-size: 10px;
  color: var(--t-low);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 2.5px;
}

/* ═══════════════════════════════════════════════
   CTA SECTION
   ═══════════════════════════════════════════════ */
.cta-section {
  background:
    radial-gradient(ellipse 80% 100% at 20% 50%, rgba(102, 126, 234, 0.12), transparent 60%),
    linear-gradient(145deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.15));
  border-color: rgba(102, 126, 234, 0.18);
  text-align: center;
}

.cta-section h2 {
  color: var(--t-hi);
}

.cta-section p {
  color: var(--t-mid);
  margin: 0 auto;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: var(--sp-4);
  margin-top: var(--sp-6);
  flex-wrap: wrap;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 30px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 500;
  font-family: 'DM Sans', sans-serif;
  letter-spacing: 0.04em;
  text-decoration: none;
  position: relative;
  overflow: hidden;
  transition: all 0.4s var(--ease-out);
}

/* Shimmer sweep */
.cta-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -120%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.18), transparent);
  transform: skewX(-20deg);
  transition: left 0.6s var(--ease-out);
}

.cta-btn:hover::before {
  left: 150%;
}

.cta-btn.primary {
  background: linear-gradient(135deg, var(--c-violet), var(--c-purple));
  color: white;
  box-shadow:
    0 4px 20px rgba(102, 126, 234, 0.35),
    0 0 0 1px rgba(255, 255, 255, 0.1) inset;
}

.cta-btn.primary:hover {
  transform: translateY(-4px) scale(1.04);
  box-shadow:
    0 12px 40px rgba(102, 126, 234, 0.5),
    0 0 60px rgba(102, 126, 234, 0.2),
    0 0 0 1px rgba(255, 255, 255, 0.15) inset;
}

.cta-btn.secondary {
  background: var(--surface-1);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-mid);
  color: var(--t-hi);
}

.cta-btn.secondary:hover {
  background: var(--surface-3);
  border-color: var(--border-bright);
  transform: translateY(-4px);
}

/* ═══════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════ */
.footer {
  position: relative;
  z-index: 3;
  padding: var(--sp-7) 0 var(--sp-6);
  text-align: center;
  margin-top: var(--sp-4);
}

/* Ligne décorative en haut */
.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 10%;
  right: 10%;
  height: 1px;
  background: linear-gradient(90deg,
      transparent,
      rgba(102, 126, 234, 0.25) 25%,
      rgba(240, 147, 251, 0.3) 50%,
      rgba(102, 126, 234, 0.25) 75%,
      transparent);
}

.footer p {
  color: var(--t-ghost);
  font-size: 12.5px;
  font-weight: 300;
  letter-spacing: 0.04em;
  margin-bottom: var(--sp-5);
  font-family: 'JetBrains Mono', monospace;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: var(--sp-4);
}

.social-links a {
  color: var(--t-ghost);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid transparent;
  transition: all 0.35s var(--ease-out);
}

.social-links a:hover {
  color: var(--c-violet);
  border-color: rgba(102, 126, 234, 0.3);
  background: rgba(102, 126, 234, 0.08);
  transform: translateY(-4px) scale(1.12);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3), 0 0 16px rgba(102, 126, 234, 0.2);
}

/* ═══════════════════════════════════════════════
   RESPONSIVE — MOBILE
   ═══════════════════════════════════════════════ */
@media (max-aspect-ratio: 1/1) {
  .back-btn {
    top: 12px;
    left: 12px;
    padding: 9px 15px;
    font-size: 12px;
    gap: 7px;
  }

  .about-header {
    padding: 76px 0 var(--sp-6);
  }

  .avatar {
    width: 88px;
    height: 88px;
  }

  .avatar-emoji {
    font-size: 38px;
  }

  .status-badge {
    font-size: 9px;
    padding: 4px 10px;
  }

  .page-title {
    font-size: 34px;
    letter-spacing: -0.5px;
  }

  .page-subtitle {
    font-size: 11px;
    letter-spacing: 0.1em;
  }

  .page-subtitle::before,
  .page-subtitle::after {
    width: 20px;
  }

  .content-section {
    padding: var(--sp-5) var(--sp-4);
    border-radius: var(--r-md);
    margin-bottom: var(--sp-4);
    transform: translateY(48px) scale(0.975) !important;
  }

  .content-section.is-visible {
    transform: translateY(0) scale(1) !important;
  }

  .content-section h2 {
    font-size: 24px;
  }

  .content-section p {
    font-size: 13.5px;
  }

  .section-icon {
    width: 44px;
    height: 44px;
    font-size: 20px;
  }

  .tech-grid,
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--sp-3);
  }

  .stat-value {
    font-size: 32px;
    letter-spacing: -1px;
  }

  .stat-icon,
  .tech-icon {
    font-size: 28px;
  }

  .stat-label {
    font-size: 9px;
    letter-spacing: 1.5px;
  }

  .cta-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .cta-btn {
    justify-content: center;
    font-size: 13.5px;
    padding: 14px 24px;
  }

  .timeline-item {
    gap: var(--sp-4);
  }

  .timeline-content h3 {
    font-size: 18px;
  }

  .timeline-content p {
    font-size: 13px;
  }

  .spotlight {
    display: none;
  }

  .avatar-container::before {
    filter: blur(24px);
  }
}

/* ═══════════════════════════════════════════════
   TABLET
   ═══════════════════════════════════════════════ */
@media (min-width: 600px) and (max-width: 1024px) {
  .tech-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ═══════════════════════════════════════════════
   REDUCED MOTION
   ═══════════════════════════════════════════════ */
@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  .content-section,
  .timeline-item,
  .tech-card,
  .stat-box {
    opacity: 1 !important;
    transform: none !important;
  }
}