/* ============================================
   Institut Adélaïde — Feuille de style
   Palette : beige · terracotta · doré · ivoire
   ============================================ */

:root {
  --cream:      #FAF6F0;
  --ivory:      #F3EDE3;
  --warm-light: #EDE2D0;
  --gold:       #C4894A;
  --gold-dark:  #A36B32;
  --gold-light: #DBA96E;
  --terracotta: #B85C38;
  --text-dark:  #2C2118;
  --text-mid:   #5C4A35;
  --text-soft:  #8C7458;
  --border:     #DDD0BA;
  --white:      #FFFFFF;

  --font-serif: 'Cormorant Garamond', Georgia, serif;
  --font-sans:  'Jost', system-ui, sans-serif;

  --radius:     12px;
  --radius-sm:  6px;
  --shadow:     0 4px 24px rgba(44, 33, 24, 0.08);
  --shadow-lg:  0 12px 48px rgba(44, 33, 24, 0.12);
  --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--cream);
  color: var(--text-dark);
  font-family: var(--font-sans);
  font-weight: 300;
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* ---- TYPOGRAPHY ---- */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.2;
}

/* ---- NAVIGATION ---- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(250, 246, 240, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}

.site-header.scrolled { box-shadow: var(--shadow); }

.nav-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 32px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.nav-logo-text {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--text-dark);
  letter-spacing: 0.01em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}

.nav-links a {
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-mid);
  transition: color var(--transition);
}

.nav-links a:hover { color: var(--gold); }

.nav-cta {
  background: var(--gold) !important;
  color: var(--white) !important;
  padding: 10px 24px;
  border-radius: 40px;
  font-size: 0.82rem !important;
  letter-spacing: 0.08em;
  transition: background var(--transition), transform var(--transition) !important;
}

.nav-cta:hover {
  background: var(--gold-dark) !important;
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--text-dark);
  transition: var(--transition);
}

/* ---- BUTTONS ---- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--gold);
  color: var(--white);
  padding: 14px 32px;
  border-radius: 40px;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.btn-primary:hover {
  background: var(--gold-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(196, 137, 74, 0.3);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--text-mid);
  padding: 14px 32px;
  border-radius: 40px;
  border: 1.5px solid var(--border);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition), transform var(--transition);
}

.btn-ghost:hover {
  border-color: var(--gold);
  color: var(--gold);
  transform: translateY(-2px);
}

.btn-large { padding: 18px 48px; font-size: 0.95rem; }

/* ---- SECTIONS ---- */
.section {
  padding: 120px 0;
}

.section-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 32px;
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 64px;
}

.section-eyebrow {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  color: var(--text-dark);
  margin-bottom: 20px;
}

.section-desc {
  color: var(--text-soft);
  font-size: 1.05rem;
  line-height: 1.8;
}

/* ---- HERO ---- */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 80px;
  max-width: 1100px;
  margin: 0 auto;
  padding: 120px 32px 80px;
  position: relative;
}

.hero-bg-ornament {
  position: fixed;
  top: -20%;
  right: -10%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(196, 137, 74, 0.06) 0%, transparent 70%);
  pointer-events: none;
  z-index: -1;
}

.hero-eyebrow {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 20px;
  opacity: 0;
  animation: fadeUp 0.8s 0.2s forwards;
}

.hero-title {
  font-size: clamp(2.8rem, 5vw, 4.2rem);
  color: var(--text-dark);
  margin-bottom: 28px;
  opacity: 0;
  animation: fadeUp 0.8s 0.35s forwards;
}

.hero-title em {
  font-style: italic;
  color: var(--gold);
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-soft);
  line-height: 1.85;
  max-width: 480px;
  margin-bottom: 44px;
  opacity: 0;
  animation: fadeUp 0.8s 0.5s forwards;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.8s 0.65s forwards;
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  animation: fadeIn 1s 0.8s forwards;
}

.hero-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 48px 40px;
  box-shadow: var(--shadow-lg);
  max-width: 340px;
  width: 100%;
  position: relative;
}

.hero-card::before {
  content: '';
  position: absolute;
  top: -1px; left: 40px; right: 40px;
  height: 3px;
  background: linear-gradient(90deg, var(--gold-light), var(--gold));
  border-radius: 0 0 3px 3px;
}

.hero-card-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
}

.hero-card-label {
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 500;
}

.hero-card-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--text-dark);
  line-height: 1.35;
}

.hero-card-date {
  font-size: 0.85rem;
  color: var(--text-soft);
  padding: 8px 20px;
  border: 1px solid var(--border);
  border-radius: 30px;
}

/* ---- FORMATIONS ---- */
.formations {
  background: var(--ivory);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.course-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  position: relative;
}

.course-card-badge {
  position: absolute;
  top: 24px; right: 24px;
  background: var(--terracotta);
  color: var(--white);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 30px;
}

.course-card-body { padding: 48px; }

.course-header {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  margin-bottom: 28px;
}

.course-icon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  background: var(--ivory);
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.course-category {
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 500;
  margin-bottom: 8px;
}

.course-title {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  color: var(--text-dark);
  line-height: 1.25;
}

.course-desc {
  color: var(--text-soft);
  line-height: 1.85;
  margin-bottom: 40px;
  max-width: 720px;
  font-size: 1rem;
}

.course-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 24px;
  padding: 32px;
  background: var(--ivory);
  border-radius: var(--radius-sm);
  margin-bottom: 40px;
}

.course-meta-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.meta-icon { font-size: 1.25rem; margin-top: 2px; }

.meta-label {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-soft);
  margin-bottom: 4px;
  font-weight: 500;
}

.meta-value {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--text-dark);
}

.course-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.price-label {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-soft);
  font-weight: 500;
  margin-bottom: 4px;
}

.price-value {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  color: var(--text-dark);
  line-height: 1;
}

.price-note {
  font-size: 0.8rem;
  color: var(--text-soft);
  margin-top: 4px;
}

/* ---- ABOUT ---- */
.about { background: var(--cream); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 80px;
  align-items: center;
}

.about-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
}

.about-ornament { opacity: 0.9; }

.about-quote {
  background: var(--ivory);
  border: 1px solid var(--border);
  border-left: 3px solid var(--gold);
  border-radius: var(--radius-sm);
  padding: 24px 28px;
}

.about-quote p {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.1rem;
  color: var(--text-mid);
  line-height: 1.6;
}

.about-content .section-title { text-align: left; margin-bottom: 28px; }
.about-content .section-eyebrow { text-align: left; }

.about-content p {
  color: var(--text-soft);
  margin-bottom: 20px;
  line-height: 1.85;
}

.about-values { margin-top: 36px; display: flex; flex-direction: column; gap: 16px; }

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

.value-dot {
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold);
  margin-top: 8px;
}

.value-item p { color: var(--text-mid); font-size: 0.95rem; }
.value-item strong { color: var(--text-dark); font-weight: 500; }

/* ---- CONTACT ---- */
.contact {
  background: var(--ivory);
  border-top: 1px solid var(--border);
}

.form-wrapper {
  max-width: 720px;
  margin: 0 auto;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 56px 56px;
  box-shadow: var(--shadow);
}

.inscription-form { display: flex; flex-direction: column; gap: 24px; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-mid);
}

.form-group input,
.form-group select,
.form-group textarea {
  background: var(--ivory);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--text-dark);
  transition: border-color var(--transition), box-shadow var(--transition);
  -webkit-appearance: none;
  appearance: none;
  outline: none;
  width: 100%;
}

.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238C7458' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
  cursor: pointer;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(196, 137, 74, 0.12);
  background: var(--white);
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-soft); opacity: 0.7; }
.form-group textarea { resize: vertical; min-height: 120px; }

.form-check {
  flex-direction: row !important;
  align-items: flex-start;
  gap: 14px;
}

.form-check input[type="checkbox"] {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  border: 1.5px solid var(--border);
  border-radius: 4px;
  background: var(--ivory);
  cursor: pointer;
  margin-top: 2px;
  accent-color: var(--gold);
}

.form-check label {
  font-size: 0.85rem !important;
  text-transform: none !important;
  letter-spacing: 0 !important;
  color: var(--text-soft);
  line-height: 1.6;
  font-weight: 300 !important;
}

.form-actions { display: flex; justify-content: center; padding-top: 8px; }

.form-message {
  text-align: center;
  padding: 16px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  display: none;
}

.form-message.success {
  display: block;
  background: rgba(196, 137, 74, 0.1);
  border: 1px solid rgba(196, 137, 74, 0.3);
  color: var(--gold-dark);
}

.form-message.error {
  display: block;
  background: rgba(184, 92, 56, 0.08);
  border: 1px solid rgba(184, 92, 56, 0.3);
  color: var(--terracotta);
}

/* ---- FOOTER ---- */
.site-footer {
  background: var(--text-dark);
  padding: 60px 0 40px;
}

.footer-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
  text-align: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.footer-name {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--cream);
}

.footer-tagline {
  font-size: 0.78rem;
  color: var(--text-soft);
  letter-spacing: 0.04em;
  margin-top: 2px;
}

.footer-links {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-links a {
  font-size: 0.82rem;
  color: var(--text-soft);
  letter-spacing: 0.06em;
  transition: color var(--transition);
}

.footer-links a:hover { color: var(--gold-light); }

.footer-copy {
  font-size: 0.75rem;
  color: var(--text-soft);
  opacity: 0.6;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.06);
  width: 100%;
}

/* ---- ANIMATIONS ---- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ---- REVEAL ON SCROLL ---- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 48px;
    padding-top: 120px;
  }
  .hero-subtitle { margin: 0 auto 44px; }
  .hero-actions { justify-content: center; }
  .hero-visual { display: none; }
  .about-grid { grid-template-columns: 1fr; }
  .about-visual { display: none; }
  .form-wrapper { padding: 36px 28px; }
}

@media (max-width: 640px) {
  .nav-links { display: none; flex-direction: column; position: absolute; top: 72px; left: 0; right: 0; background: var(--cream); border-bottom: 1px solid var(--border); padding: 24px 32px; gap: 20px; }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }
  .form-row { grid-template-columns: 1fr; }
  .course-card-body { padding: 28px 24px; }
  .course-meta { grid-template-columns: 1fr 1fr; }
  .course-footer { flex-direction: column; align-items: flex-start; }
  .section { padding: 80px 0; }
}