/* AlgoTradeAcademy — Académie-classroom */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,500;0,600;0,700;1,500&family=IBM+Plex+Sans:ital,wght@0,400;0,500;0,600;0,700;1,400&display=swap');

:root {
  --maroon: #7C2D12;
  --parchment: #FEF3C7;
  --slate: #1F2937;
  --forest: #166534;
  --amber: #F59E0B;
  --white: #ffffff;
  --border: #d6cfc0;
  --shadow: 0 6px 28px rgba(31, 41, 55, 0.1);
  --radius: 6px;
  --max-w: 1180px;
  --font-heading: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'IBM Plex Sans', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--slate);
  background: var(--parchment);
  line-height: 1.7;
  font-size: 16px;
}

img { max-width: 100%; height: auto; display: block; }

a {
  color: var(--maroon);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s;
}
a:hover { color: var(--amber); }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--slate);
  line-height: 1.2;
  font-weight: 600;
}

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* Header */
.site-header {
  background: var(--parchment);
  border-bottom: 3px solid var(--maroon);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: var(--max-w);
  margin: 0 auto;
}

.logo { display: flex; flex-direction: column; gap: 2px; text-decoration: none; }
.logo:hover { color: inherit; }

.logo-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.55rem;
  color: var(--maroon);
  letter-spacing: 0.02em;
}

.logo-slogan {
  font-size: 0.72rem;
  color: var(--slate);
  font-style: italic;
  max-width: 340px;
}

.main-nav ul {
  display: flex;
  list-style: none;
  gap: 22px;
  align-items: center;
}

.main-nav a {
  color: var(--slate);
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: none;
  letter-spacing: 0.02em;
}

.main-nav a:hover { color: var(--maroon); }

.nav-cta {
  background: var(--maroon) !important;
  color: var(--parchment) !important;
  padding: 10px 16px !important;
  border-radius: var(--radius);
}
.nav-cta:hover { background: var(--amber) !important; color: var(--slate) !important; }

.menu-toggle {
  display: none;
  background: none;
  border: 2px solid var(--maroon);
  cursor: pointer;
  padding: 8px 10px;
  border-radius: var(--radius);
}
.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--maroon);
  margin: 5px 0;
}

/* Hero frontispiece */
.hero-academy {
  background: var(--white);
  padding: 64px 0 48px;
  border-bottom: 1px solid var(--border);
}

.hero-academy-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: start;
}

.hero-chapter {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  color: var(--maroon);
  opacity: 0.25;
  line-height: 1;
  margin-bottom: 8px;
}

.hero-academy h1 {
  font-size: clamp(2rem, 4.5vw, 3rem);
  margin-bottom: 18px;
}

.hero-lead {
  font-size: 1.08rem;
  color: #4b5563;
  margin-bottom: 24px;
  max-width: 520px;
}

.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 28px; }

.code-panel {
  background: var(--slate);
  color: #e5e7eb;
  border-radius: var(--radius);
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.55;
  border-left: 4px solid var(--amber);
  overflow-x: auto;
}

.code-panel .code-label {
  display: block;
  font-family: var(--font-body);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--amber);
  margin-bottom: 12px;
}

.code-panel .kw { color: #93c5fd; }
.code-panel .fn { color: #fcd34d; }
.code-panel .cm { color: #9ca3af; }

.promo-table {
  margin-top: 32px;
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.promo-table th,
.promo-table td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.promo-table th {
  background: var(--maroon);
  color: var(--parchment);
  font-weight: 600;
}

.promo-table tr:hover td { background: rgba(124, 45, 18, 0.04); }

/* Stats */
.stats-band {
  background: var(--maroon);
  color: var(--parchment);
  padding: 40px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-num {
  display: block;
  font-family: var(--font-heading);
  font-size: 2.6rem;
  font-weight: 700;
  color: var(--amber);
  line-height: 1;
}

.stat-label {
  display: block;
  font-size: 0.82rem;
  margin-top: 8px;
  opacity: 0.92;
}

/* Sections */
.section { padding: 64px 0; }
.section-white { background: var(--white); }
.section-parchment { background: var(--parchment); }

.section-header { margin-bottom: 40px; max-width: 720px; }
.section-header.centered { text-align: center; margin-left: auto; margin-right: auto; }

.section-tag {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--forest);
  margin-bottom: 10px;
}

.section-header h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); margin-bottom: 14px; }

.roman-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--maroon);
  margin-bottom: 6px;
}

/* Cards */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.card {
  background: var(--parchment);
  border-radius: var(--radius);
  padding: 28px 22px;
  border-bottom: 3px solid var(--maroon);
  box-shadow: var(--shadow);
  transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 36px rgba(31, 41, 55, 0.14);
}

.card-badge {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 4px 10px;
  border-radius: 3px;
  margin-bottom: 12px;
}

.badge-cours { background: var(--maroon); color: var(--parchment); }
.badge-tp { background: var(--forest); color: var(--white); }
.badge-eval { background: var(--amber); color: var(--slate); }
.badge-projet { background: var(--slate); color: var(--parchment); }

.card h3 { font-size: 1.25rem; margin-bottom: 10px; }
.card p { font-size: 0.92rem; color: #4b5563; }

/* Cursus band */
.cursus-band {
  background: var(--slate);
  color: var(--parchment);
  padding: 56px 0;
}

.cursus-band h2 { color: var(--parchment); margin-bottom: 20px; }
.cursus-band p { max-width: 780px; font-size: 1.05rem; opacity: 0.92; }

.cursus-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 36px;
}

.cursus-step {
  border-left: 3px solid var(--amber);
  padding-left: 18px;
}

.cursus-step h3 {
  color: var(--amber);
  font-size: 1.1rem;
  margin-bottom: 8px;
}

/* Reasons */
.reasons-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.reason-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.reason-num {
  font-family: var(--font-heading);
  font-size: 2rem;
  color: var(--maroon);
  line-height: 1;
  min-width: 36px;
}

/* Process */
.process-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  counter-reset: step;
}

.process-step {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 16px;
  text-align: center;
  position: relative;
}

.process-step::before {
  content: attr(data-step);
  display: block;
  font-family: var(--font-heading);
  font-size: 1.8rem;
  color: var(--maroon);
  margin-bottom: 10px;
}

.process-step h3 { font-size: 1rem; margin-bottom: 8px; }
.process-step p { font-size: 0.82rem; color: #6b7280; }

/* Program previews */
.program-preview {
  background: var(--white);
  border: 1px solid var(--border);
  border-bottom: 3px solid var(--maroon);
  border-radius: var(--radius);
  padding: 28px;
}

.program-preview .level {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--forest);
  margin-bottom: 8px;
}

.program-preview h3 { margin-bottom: 12px; font-size: 1.2rem; }
.program-preview p { font-size: 0.92rem; color: #4b5563; margin-bottom: 16px; }

/* Case study */
.case-study {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.case-study img { border-radius: var(--radius); box-shadow: var(--shadow); }

/* Testimonials */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial {
  background: var(--white);
  border-left: 4px solid var(--amber);
  padding: 24px;
  border-radius: 0 var(--radius) var(--radius) 0;
}

.testimonial blockquote {
  font-style: italic;
  font-size: 0.95rem;
  margin-bottom: 14px;
  color: #374151;
}

.testimonial cite {
  font-size: 0.82rem;
  font-style: normal;
  color: var(--maroon);
}

.testimonial cite strong { display: block; }

/* Mini FAQ */
.mini-faq details {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 10px;
  padding: 0;
}

.mini-faq summary {
  padding: 16px 20px;
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}

.mini-faq summary::-webkit-details-marker { display: none; }

.mini-faq details[open] summary { border-bottom: 1px solid var(--border); }

.mini-faq details p {
  padding: 16px 20px;
  font-size: 0.92rem;
  color: #4b5563;
}

/* FAQ page */
.faq-list { max-width: 820px; margin: 0 auto; }

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  background: var(--white);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 18px 22px;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  color: var(--slate);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-question::after {
  content: '+';
  font-size: 1.4rem;
  color: var(--maroon);
  transition: transform 0.2s;
}

.faq-item.active .faq-question::after { content: '−'; }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer { max-height: 600px; }

.faq-answer p {
  padding: 0 22px 18px;
  font-size: 0.94rem;
  color: #4b5563;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 24px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.9rem;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
}

.btn-primary {
  background: var(--maroon);
  color: var(--parchment);
}
.btn-primary:hover { background: var(--amber); color: var(--slate); }

.btn-outline {
  background: transparent;
  color: var(--maroon);
  border: 2px solid var(--maroon);
}
.btn-outline:hover { background: var(--maroon); color: var(--parchment); }

/* CTA */
.cta-section {
  background: var(--maroon);
  color: var(--parchment);
  padding: 64px 0;
  text-align: center;
}

.cta-section h2 { color: var(--parchment); margin-bottom: 14px; font-size: 2rem; }
.cta-section p { max-width: 560px; margin: 0 auto 24px; opacity: 0.92; }

/* Disclaimer */
.disclaimer-box {
  background: rgba(124, 45, 18, 0.06);
  border-left: 4px solid var(--maroon);
  padding: 20px 24px;
  margin: 40px auto 48px;
  border-radius: 0 var(--radius) var(--radius) 0;
}

.disclaimer-box p { font-size: 0.86rem; color: #4b5563; font-style: italic; }

/* Trust bar */
.trust-bar {
  background: var(--forest);
  color: var(--white);
  padding: 12px 0;
  text-align: center;
  font-size: 0.82rem;
}

/* Solutions catalog */
.catalog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.catalog-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  border-bottom: 3px solid var(--maroon);
  box-shadow: var(--shadow);
}

.catalog-card img { width: 100%; height: 200px; object-fit: cover; }

.catalog-body { padding: 24px; }

.catalog-ref {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--forest);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.catalog-card h3 { margin: 8px 0 12px; font-size: 1.25rem; }

.catalog-price {
  font-weight: 700;
  color: var(--maroon);
  margin: 12px 0;
  font-size: 0.92rem;
}

.catalog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}

.filter-tag {
  padding: 6px 14px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 0.8rem;
  color: var(--slate);
}

/* Services */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--white);
  padding: 28px;
  border-radius: var(--radius);
  border-top: 4px solid var(--amber);
}

.service-card h3 { margin-bottom: 12px; }

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.team-member {
  background: var(--white);
  padding: 24px;
  border-radius: var(--radius);
  border-bottom: 2px solid var(--maroon);
}

.team-role {
  font-size: 0.78rem;
  color: var(--forest);
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 6px;
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 48px;
}

.contact-info-block { margin-bottom: 24px; }
.contact-info-block h3 { font-size: 1rem; margin-bottom: 8px; color: var(--maroon); }

.contact-form {
  background: var(--white);
  padding: 32px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

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

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.88rem;
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.92rem;
  background: var(--parchment);
}

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

.form-consent {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 0.85rem;
}

.form-consent input { margin-top: 4px; }

.form-message {
  padding: 14px 18px;
  border-radius: var(--radius);
  margin-bottom: 20px;
  display: none;
}

.form-message.success {
  background: rgba(22, 101, 52, 0.1);
  border: 1px solid var(--forest);
  color: var(--forest);
}

.form-message.error {
  background: rgba(124, 45, 18, 0.08);
  border: 1px solid var(--maroon);
  color: var(--maroon);
}

.map-embed {
  width: 100%;
  height: 220px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-top: 16px;
}

/* Legal pages */
.page-hero {
  background: var(--white);
  padding: 48px 0 32px;
  border-bottom: 1px solid var(--border);
}

.page-hero h1 { font-size: 2.4rem; margin-bottom: 12px; }

.legal-content {
  max-width: 820px;
  margin: 0 auto;
  padding: 48px 24px 64px;
}

.legal-content h2 {
  font-size: 1.35rem;
  margin: 32px 0 12px;
  color: var(--maroon);
}

.legal-content p,
.legal-content li {
  margin-bottom: 12px;
  font-size: 0.94rem;
  color: #374151;
}

.legal-content ul { padding-left: 24px; margin-bottom: 16px; }

/* 404 */
.error-page {
  text-align: center;
  padding: 100px 24px;
  min-height: 50vh;
}

.error-page h1 {
  font-size: 5rem;
  color: var(--maroon);
  margin-bottom: 16px;
}

/* Footer */
.site-footer {
  background: var(--slate);
  color: #d1d5db;
  padding: 56px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}

.footer-brand .logo-name { color: var(--parchment); }
.footer-brand .logo-slogan { color: #9ca3af; }
.footer-brand p { font-size: 0.88rem; margin-top: 12px; line-height: 1.6; }

.footer-col h4 {
  color: var(--parchment);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 14px;
}

.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 8px; font-size: 0.86rem; }
.footer-col a { color: #d1d5db; text-decoration: none; }
.footer-col a:hover { color: var(--amber); }

.footer-disclaimer {
  font-size: 0.82rem;
  font-style: italic;
  text-align: center;
  padding: 16px 0;
  border-top: 1px solid #374151;
  border-bottom: 1px solid #374151;
  margin-bottom: 16px;
  color: #9ca3af;
}

.footer-bottom {
  text-align: center;
  font-size: 0.75rem;
  color: #6b7280;
  line-height: 1.7;
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--slate);
  color: var(--parchment);
  padding: 18px 24px;
  z-index: 9999;
  transform: translateY(100%);
  transition: transform 0.3s ease;
  box-shadow: 0 -4px 24px rgba(0,0,0,0.2);
}

.cookie-banner.visible { transform: translateY(0); }

.cookie-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.cookie-text { font-size: 0.86rem; max-width: 720px; line-height: 1.55; }
.cookie-text a { color: var(--amber); }

.cookie-actions { display: flex; gap: 10px; flex-shrink: 0; }

.btn-cookie-accept,
.btn-cookie-decline {
  padding: 10px 18px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  border: none;
}

.btn-cookie-accept { background: var(--amber); color: var(--slate); }
.btn-cookie-decline { background: transparent; color: var(--parchment); border: 1px solid #6b7280; }

/* Notion / TP / Eval blocks */
.block-notion,
.block-tp,
.block-eval {
  padding: 20px 24px;
  border-radius: var(--radius);
  margin: 20px 0;
}

.block-notion {
  background: rgba(124, 45, 18, 0.06);
  border-left: 4px solid var(--maroon);
}

.block-tp {
  background: rgba(22, 101, 52, 0.06);
  border-left: 4px solid var(--forest);
}

.block-eval {
  background: rgba(245, 158, 11, 0.1);
  border-left: 4px solid var(--amber);
}

.block-label {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}

/* Responsive */
@media (max-width: 1024px) {
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(3, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .catalog-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .menu-toggle { display: block; }

  .main-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: min(300px, 85vw);
    height: 100vh;
    background: var(--parchment);
    padding: 80px 24px 24px;
    transition: right 0.3s ease;
    box-shadow: -4px 0 24px rgba(0,0,0,0.15);
    border-left: 3px solid var(--maroon);
  }

  .main-nav.open { right: 0; }
  .main-nav ul { flex-direction: column; align-items: flex-start; gap: 16px; }

  .hero-academy-grid,
  .case-study,
  .about-grid,
  .contact-grid { grid-template-columns: 1fr; }

  .cards-grid,
  .reasons-grid,
  .testimonials-grid,
  .cursus-steps,
  .team-grid,
  .services-grid { grid-template-columns: 1fr; }

  .process-steps { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}