/* =====================================================
   LMASoft — Design System
   ===================================================== */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,300;9..144,400;9..144,500;9..144,600;9..144,700;9..144,900&family=JetBrains+Mono:wght@300;400;500;600&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  /* Couleurs */
  --bg: #0a0a0b;
  --bg-elevated: #111114;
  --bg-card: #15151a;
  --border: #25252d;
  --border-strong: #3a3a45;
  --text: #f5f5f0;
  --text-muted: #8b8b94;
  --text-dim: #5a5a63;
  --accent: #c4f542;       /* vert lime électrique */
  --accent-soft: #c4f54220;
  --accent-2: #ff5e3a;     /* orange brûlé pour contraste */
  --accent-3: #4f8cff;     /* bleu pour pilier cloud */

  /* Typo */
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  /* Espacement */
  --container: 1280px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);

  /* Effets */
  --radius: 4px;
  --radius-lg: 12px;
  --transition: cubic-bezier(0.4, 0, 0.2, 1);
}

/* =====================================================
   Reset & base
   ===================================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.6;
  font-weight: 400;
  overflow-x: hidden;
}

/* Texture grain de fond */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.4;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0.04 0'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)'/%3E%3C/svg%3E");
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

::selection { background: var(--accent); color: var(--bg); }

/* =====================================================
   Typographie
   ===================================================== */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.02em;
  font-variation-settings: "opsz" 144;
}

h1 { font-size: clamp(2.75rem, 7vw, 5.75rem); font-weight: 300; }
h2 { font-size: clamp(2rem, 5vw, 3.75rem); font-weight: 400; }
h3 { font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 500; }
h4 { font-size: 1.25rem; font-weight: 500; }

.italic { font-style: italic; font-family: var(--font-display); font-weight: 300; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  font-weight: 500;
}

.eyebrow::before {
  content: '— ';
  color: var(--accent);
}

/* =====================================================
   Layout
   ===================================================== */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
  position: relative;
  z-index: 2;
}

section { position: relative; z-index: 2; }

/* =====================================================
   Header / Navigation
   ===================================================== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.25rem 0;
  background: rgba(10, 10, 11, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--transition);
}

.site-header.scrolled {
  border-bottom-color: var(--border);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.logo {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-mark {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: var(--bg);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: -0.05em;
}

.logo span { font-style: italic; font-weight: 300; }

.nav-links {
  display: flex;
  gap: 2.25rem;
  list-style: none;
  align-items: center;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--text-muted);
  transition: color 0.2s;
  position: relative;
}

.nav-links a:hover, .nav-links a.active { color: var(--text); }

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -6px; left: 0; right: 0;
  height: 1px;
  background: var(--accent);
}

.nav-cta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.7rem 1.25rem;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  transition: all 0.25s var(--transition);
}

.nav-cta:hover {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}

.menu-toggle {
  display: none;
  width: 32px;
  height: 32px;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
}

.menu-toggle span {
  display: block;
  height: 1.5px;
  background: var(--text);
  transition: transform 0.3s;
}

.menu-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

@media (max-width: 900px) {
  .menu-toggle { display: flex; }
  .nav-links {
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    background: var(--bg-elevated);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 1.5rem var(--gutter);
    gap: 1.25rem;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s var(--transition);
  }
  .nav-links.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav-cta { display: none; }
}

/* =====================================================
   Buttons
   ===================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 1rem 1.75rem;
  border-radius: 999px;
  font-weight: 500;
  transition: all 0.25s var(--transition);
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg);
}

.btn-primary:hover {
  background: var(--text);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px -10px var(--accent);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}

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

.btn .arrow {
  display: inline-block;
  transition: transform 0.25s;
}
.btn:hover .arrow { transform: translateX(3px); }

/* =====================================================
   Hero
   ===================================================== */
.hero {
  min-height: 100vh;
  padding: 11rem 0 6rem;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 80px 80px;
  background-position: -1px -1px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 30%, transparent 80%);
  opacity: 0.4;
  pointer-events: none;
}

.hero-glow {
  position: absolute;
  top: 20%; left: 50%;
  transform: translateX(-50%);
  width: 800px; height: 800px;
  background: radial-gradient(circle, var(--accent-soft) 0%, transparent 60%);
  filter: blur(80px);
  pointer-events: none;
  z-index: 1;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  position: relative;
  z-index: 3;
}

.hero h1 {
  max-width: 14ch;
  margin-bottom: 1.5rem;
}

.hero h1 .accent { color: var(--accent); font-style: italic; }

.hero p.lead {
  font-size: clamp(1.05rem, 1.4vw, 1.25rem);
  color: var(--text-muted);
  max-width: 52ch;
  line-height: 1.6;
  margin-bottom: 2.5rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 4rem;
}

.hero-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 2rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border);
  max-width: 700px;
}

.hero-meta-item .num {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 300;
  color: var(--accent);
  display: block;
  line-height: 1;
}

.hero-meta-item .label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 0.9rem 0.4rem 0.7rem;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  margin-bottom: 2rem;
  color: var(--text-muted);
}

.hero-tag .dot {
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--accent);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* =====================================================
   Section générique
   ===================================================== */
.section {
  padding: clamp(5rem, 10vw, 8rem) 0;
  position: relative;
}

.section-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-bottom: 4rem;
  max-width: 900px;
}

@media (min-width: 800px) {
  .section-head { grid-template-columns: 1fr 1fr; align-items: end; }
}

.section-head .eyebrow { margin-bottom: 0.75rem; display: block; }

.section-head .desc {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 50ch;
}

/* =====================================================
   Pillars (3 piliers)
   ===================================================== */
.pillars {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.pillars-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

@media (min-width: 800px) {
  .pillars-grid { grid-template-columns: repeat(3, 1fr); }
}

.pillar {
  padding: 3rem 2.25rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  transition: background 0.3s;
  position: relative;
}

@media (min-width: 800px) {
  .pillar { border-bottom: none; border-right: 1px solid var(--border); }
  .pillar:last-child { border-right: none; }
}

.pillar:hover { background: var(--bg-card); }

.pillar-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
  letter-spacing: 0.1em;
  margin-bottom: 2rem;
}

.pillar h3 {
  margin-bottom: 1rem;
  font-family: var(--font-display);
  font-weight: 400;
}

.pillar h3 em { color: var(--accent); font-style: italic; font-weight: 300; }

.pillar p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

.pillar-icon {
  width: 48px; height: 48px;
  margin-bottom: 1.5rem;
  color: var(--accent);
}

/* =====================================================
   Services / Ce que nous faisons
   ===================================================== */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

@media (min-width: 700px) { .services-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1000px) { .services-grid { grid-template-columns: repeat(3, 1fr); } }

.service-card {
  background: var(--bg);
  padding: 2.5rem 2rem;
  transition: background 0.3s var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 260px;
}

.service-card:hover { background: var(--bg-card); }

.service-card .num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-bottom: 1.5rem;
}

.service-card h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  margin-bottom: 0.85rem;
  letter-spacing: -0.01em;
}

.service-card p {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.6;
  flex-grow: 1;
}

.service-card .tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px dashed var(--border);
}

.service-card .tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.25rem 0.6rem;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  color: var(--text-muted);
}

/* =====================================================
   Mission / Vision split
   ===================================================== */
.mv-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 800px) { .mv-grid { grid-template-columns: 1fr 1fr; } }

.mv-card {
  padding: 3rem 2.25rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  position: relative;
  background: linear-gradient(135deg, var(--bg-elevated) 0%, var(--bg) 100%);
}

.mv-card .icon {
  font-size: 2rem;
  margin-bottom: 1.5rem;
  display: inline-block;
  filter: grayscale(0);
}

.mv-card h3 {
  font-family: var(--font-display);
  margin-bottom: 1rem;
  font-weight: 400;
}

.mv-card h3 em { color: var(--accent); font-style: italic; }

.mv-card p {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.7;
}

/* =====================================================
   CTA Band
   ===================================================== */
.cta-band {
  padding: clamp(4rem, 8vw, 6rem) 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background:
    radial-gradient(ellipse at top, var(--accent-soft) 0%, transparent 60%),
    var(--bg);
  text-align: center;
}

.cta-band h2 {
  max-width: 18ch;
  margin: 0 auto 1.5rem;
}

.cta-band h2 em { color: var(--accent); font-style: italic; }

.cta-band p {
  color: var(--text-muted);
  max-width: 50ch;
  margin: 0 auto 2.5rem;
  font-size: 1.05rem;
}

/* =====================================================
   Footer
   ===================================================== */
.site-footer {
  padding: 5rem 0 2rem;
  background: var(--bg);
  border-top: 1px solid var(--border);
  position: relative;
  z-index: 2;
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--border);
}

@media (min-width: 800px) {
  .footer-top { grid-template-columns: 2fr 1fr 1fr 1fr; }
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.92rem;
  max-width: 36ch;
  margin: 1rem 0 1.5rem;
}

.footer-col h5 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 0.7rem; }

.footer-col a {
  font-size: 0.92rem;
  color: var(--text);
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--accent); }

.footer-bottom {
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
  letter-spacing: 0.05em;
}

.footer-bottom a:hover { color: var(--accent); }

/* =====================================================
   Page header (sous-pages)
   ===================================================== */
.page-header {
  padding: 11rem 0 5rem;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: linear-gradient(to bottom, black 30%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, black 30%, transparent 100%);
  opacity: 0.3;
  pointer-events: none;
}

.page-header h1 { margin-bottom: 1.25rem; max-width: 18ch; }
.page-header h1 em { color: var(--accent); font-style: italic; font-weight: 300; }

.page-header .lead {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 60ch;
  position: relative;
  z-index: 2;
}

.breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 2rem;
  position: relative;
  z-index: 2;
}
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { margin: 0 0.5rem; color: var(--border-strong); }

/* =====================================================
   Service detail (page services)
   ===================================================== */
.service-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  padding: 4rem 0;
  border-bottom: 1px solid var(--border);
  align-items: start;
}

@media (min-width: 800px) {
  .service-row { grid-template-columns: 1fr 2fr; gap: 4rem; }
}

.service-row:last-child { border-bottom: none; }

.service-row .label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}

.service-row .label .num { color: var(--accent); margin-right: 0.5rem; }

.service-row h3 {
  font-family: var(--font-display);
  font-weight: 400;
  margin-bottom: 1.25rem;
}
.service-row h3 em { color: var(--accent); font-style: italic; font-weight: 300; }

.service-row p {
  color: var(--text-muted);
  font-size: 1.02rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.service-row ul {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.75rem;
}

.service-row ul li {
  font-size: 0.9rem;
  padding-left: 1.25rem;
  position: relative;
  color: var(--text);
}

.service-row ul li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-family: var(--font-mono);
}

/* =====================================================
   Formations / Programs
   ===================================================== */
.program-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 700px) { .program-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1100px) { .program-grid { grid-template-columns: repeat(3, 1fr); } }

.program-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all 0.3s var(--transition);
  position: relative;
  overflow: hidden;
}

.program-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}

.program-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--transition);
}
.program-card:hover::before { transform: scaleX(1); }

.program-card .level {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  padding: 0.25rem 0.6rem;
  background: var(--accent-soft);
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 1.25rem;
}

.program-card h3 {
  font-family: var(--font-display);
  font-weight: 500;
  margin-bottom: 0.75rem;
  font-size: 1.4rem;
}

.program-card p {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.program-meta {
  display: flex;
  justify-content: space-between;
  padding-top: 1.25rem;
  border-top: 1px dashed var(--border);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}

.program-meta strong { color: var(--text); font-weight: 500; }

/* =====================================================
   Teacher cards (corps enseignant)
   ===================================================== */
.teacher-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2rem;
  padding: 2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg);
  align-items: start;
  transition: border-color 0.3s var(--transition);
}

.teacher-card:hover { border-color: var(--accent); }

.teacher-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.5rem;
  color: var(--bg);
  flex-shrink: 0;
}

.teacher-head {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}

.teacher-head h4 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  margin: 0;
}

.teacher-axis {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.25rem 0.6rem;
  border: 1px solid var(--accent);
  border-radius: 999px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.teacher-card > div:last-child > p {
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 1rem;
}

.teacher-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.teacher-tags span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  color: var(--text-muted);
}

@media (max-width: 600px) {
  .teacher-card { grid-template-columns: 1fr; gap: 1.5rem; padding: 1.5rem; }
  .teacher-avatar { width: 60px; height: 60px; font-size: 1.15rem; }
}

/* =====================================================
   Contact form
   ===================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4rem;
}

@media (min-width: 900px) { .contact-grid { grid-template-columns: 1fr 1.4fr; } }

.contact-info h3 {
  font-family: var(--font-display);
  font-weight: 400;
  margin-bottom: 1.5rem;
}

.contact-info h3 em { color: var(--accent); font-style: italic; }

.contact-info p { color: var(--text-muted); margin-bottom: 2.5rem; line-height: 1.7; }

.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--border);
}

.contact-detail:last-child { border-bottom: none; }

.contact-detail .icon {
  width: 40px; height: 40px;
  flex-shrink: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}

.contact-detail .label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.contact-detail .value { color: var(--text); font-size: 0.95rem; }

form.contact-form {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

@media (min-width: 600px) { .form-row.cols-2 { grid-template-columns: 1fr 1fr; } }

.form-group label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  padding: 0.85rem 1rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.form-group textarea { min-height: 140px; resize: vertical; }

.form-success {
  display: none;
  padding: 1rem;
  border-radius: var(--radius);
  background: var(--accent-soft);
  border: 1px solid var(--accent);
  color: var(--accent);
  font-size: 0.9rem;
  margin-bottom: 1.25rem;
}

.form-success.show { display: block; }

/* =====================================================
   Google Form embed wrapper
   ===================================================== */
.contact-form-wrap {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
}

.gform-container {
  position: relative;
  background: #ffffff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-strong);
}

.gform-container iframe {
  display: block;
  width: 100%;
  border: 0;
  background: #ffffff;
  min-height: 800px;
}

@media (max-width: 600px) {
  .contact-form-wrap { padding: 1.5rem; }
  .gform-container iframe { min-height: 1100px; }
}

/* =====================================================
   Animations on scroll
   ===================================================== */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s var(--transition), transform 0.8s var(--transition);
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delays */
.reveal[data-delay="1"] { transition-delay: 0.08s; }
.reveal[data-delay="2"] { transition-delay: 0.16s; }
.reveal[data-delay="3"] { transition-delay: 0.24s; }
.reveal[data-delay="4"] { transition-delay: 0.32s; }
.reveal[data-delay="5"] { transition-delay: 0.4s; }

/* =====================================================
   Marquee bandeau techno
   ===================================================== */
.marquee {
  overflow: hidden;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
  padding: 1.5rem 0;
}

.marquee-track {
  display: flex;
  gap: 4rem;
  animation: scroll 40s linear infinite;
  width: max-content;
}

.marquee-item {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--text-muted);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 4rem;
  font-style: italic;
}

.marquee-item::after {
  content: '✦';
  color: var(--accent);
  font-style: normal;
}

@keyframes scroll {
  to { transform: translateX(-50%); }
}

/* =====================================================
   Process / Methodology
   ===================================================== */
.process-list {
  counter-reset: step;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.process-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2rem;
  padding: 2.5rem 0;
  border-bottom: 1px solid var(--border);
  align-items: start;
  counter-increment: step;
}

.process-step:last-child { border-bottom: none; }

.process-step .num {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 4rem;
  color: var(--accent);
  line-height: 0.85;
  font-style: italic;
}

.process-step h3 {
  font-family: var(--font-display);
  font-weight: 500;
  margin-bottom: 0.75rem;
}

.process-step p { color: var(--text-muted); line-height: 1.7; max-width: 60ch; }

/* =====================================================
   Utilitaires
   ===================================================== */
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.text-accent { color: var(--accent); }

.divider {
  height: 1px;
  background: var(--border);
  margin: 4rem 0;
}

@media (max-width: 600px) {
  .hero { padding: 9rem 0 4rem; min-height: auto; }
  .section { padding: 4rem 0; }

  /* Anti-débordement horizontal */
  body { overflow-x: hidden; }

  /* Boutons hero, page-header et CTA en pleine largeur sur mobile */
  .hero-actions,
  .cta-band > .container > div:last-child,
  .page-header > .container > div:last-child {
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 0.75rem !important;
  }

  .hero-actions .btn,
  .cta-band .btn,
  .page-header .btn {
    width: 100%;
    justify-content: center;
    padding: 0.95rem 1.25rem;
    font-size: 0.78rem;
  }

  /* Hero meta : grille 2 colonnes propre */
  .hero-meta {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
  }
  .hero-meta-item .num { font-size: 2rem; }

  /* Titre hero plus contenu */
  .hero h1 { font-size: clamp(2.25rem, 9vw, 3.5rem); }

  /* Forcer une colonne sur les section-head */
  .section-head { grid-template-columns: 1fr !important; }
}