/* =====================================================
   CATALYSTS JUNIORS — Jedi de l'IA
   Design system : bleu nuit + or + cyan + crème
   ===================================================== */

:root {
  --nuit: #0F1B3B;
  --nuit-soft: #1A2749;
  --nuit-line: rgba(255,255,255,0.08);
  --nuit-line-strong: rgba(255,255,255,0.16);
  --or: #E8A756;
  --orange: #D4622A;
  --cyan: #8BD9E3;
  --creme: #F7F1E3;
  --blanc: #FFFFFF;
  --gris: #8A93A8;
  --gris-clair: #C4CAD6;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Archivo', -apple-system, sans-serif;
  background: var(--nuit);
  color: var(--blanc);
  line-height: 1.5;
  overflow-x: hidden;
  font-size: 16px;
}

img, svg { max-width: 100%; display: block; }

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s var(--ease), opacity 0.2s var(--ease);
}

a:hover { opacity: 0.85; }

button {
  font-family: inherit;
  cursor: pointer;
  background: none;
  border: none;
  color: inherit;
}

/* ==================== NAV ==================== */
nav.top {
  position: fixed;
  top: 0; left: 0; right: 0;
  padding: 20px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 100;
  background: rgba(15, 27, 59, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--nuit-line);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: 'Archivo', sans-serif;
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 1.5px;
}

.brand svg {
  width: 32px;
  height: 32px;
}

.brand .brand-junior {
  font-family: 'Fraunces', serif;
  font-style: italic;
  font-weight: 500;
  color: var(--cyan);
  letter-spacing: 0;
  font-size: 16px;
  margin-left: -6px;
}

nav.top ul {
  display: flex;
  gap: 32px;
  list-style: none;
  font-family: 'Archivo', sans-serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
}

nav.top ul a { color: var(--gris-clair); }
nav.top ul a:hover { color: var(--or); opacity: 1; }

@media (max-width: 760px) {
  nav.top { padding: 16px 20px; }
  nav.top ul { display: none; }
}

/* ==================== HERO ==================== */
.hero {
  min-height: 100vh;
  padding: 140px 40px 80px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.hero-decor-star {
  position: absolute;
  top: -100px;
  right: -100px;
  width: 500px;
  height: 500px;
  opacity: 0.12;
  animation: sparkPulse 5s ease-in-out infinite;
}

.hero-decor-star-2 {
  position: absolute;
  bottom: 100px;
  left: -60px;
  width: 180px;
  height: 180px;
  opacity: 0.15;
  animation: sparkPulse 7s ease-in-out infinite 1s;
}

@keyframes sparkPulse {
  0%, 100% { opacity: 0.12; transform: rotate(0deg); }
  50% { opacity: 0.22; transform: rotate(6deg); }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 1.5px solid var(--or);
  padding: 8px 18px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--or);
  margin-bottom: 32px;
  width: fit-content;
  text-transform: uppercase;
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--or);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}

h1 {
  font-family: 'Archivo', sans-serif;
  font-weight: 900;
  font-size: clamp(64px, 12vw, 180px);
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: var(--blanc);
  margin-bottom: 12px;
}

h1 .accent {
  color: var(--or);
}

.hero-tagline {
  font-family: 'Fraunces', serif;
  font-style: italic;
  font-weight: 500;
  font-size: clamp(24px, 4vw, 48px);
  color: var(--cyan);
  line-height: 1.1;
  margin-bottom: 40px;
}

.hero-sub {
  font-size: clamp(16px, 1.5vw, 20px);
  line-height: 1.55;
  color: var(--gris-clair);
  max-width: 720px;
  margin-bottom: 48px;
}

.hero-dates {
  display: flex;
  gap: 20px;
  align-items: center;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.date-card {
  border: 1.5px solid var(--or);
  background: var(--nuit-soft);
  padding: 20px 28px;
  min-width: 240px;
}

.date-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--or);
  margin-bottom: 8px;
}

.date-value {
  font-size: 24px;
  font-weight: 600;
  color: var(--blanc);
  line-height: 1.1;
}

.date-plus {
  font-size: 24px;
  color: var(--or);
  font-weight: 300;
}

.hero-cta {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.btn-primary, .btn-outline {
  display: inline-block;
  padding: 18px 32px;
  font-family: 'Archivo', sans-serif;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  transition: all 0.3s var(--ease);
  border: 2px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background: var(--or);
  color: var(--nuit);
}

.btn-primary:hover {
  background: var(--blanc);
  opacity: 1;
  transform: translateY(-2px);
}

.btn-outline {
  border-color: var(--nuit-line-strong);
  color: var(--blanc);
}

.btn-outline:hover {
  border-color: var(--or);
  color: var(--or);
  opacity: 1;
}

/* ==================== SECTIONS ==================== */
section {
  padding: 100px 40px;
  position: relative;
}

section.alt {
  background: var(--nuit-soft);
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  border-bottom: 1px solid var(--nuit-line);
  padding-bottom: 20px;
  margin-bottom: 60px;
  font-family: 'Archivo', sans-serif;
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--gris);
  text-transform: uppercase;
  font-weight: 600;
}

.section-head .left {
  display: flex;
  gap: 20px;
  align-items: baseline;
}

.section-num {
  color: var(--or);
  font-weight: 700;
}

h2 {
  font-family: 'Archivo', sans-serif;
  font-weight: 900;
  font-size: clamp(40px, 6vw, 80px);
  line-height: 0.95;
  letter-spacing: -0.03em;
  color: var(--blanc);
  margin-bottom: 40px;
}

h2 em, h2 .accent {
  font-style: normal;
  color: var(--or);
}

h2 .cyan {
  font-style: italic;
  color: var(--cyan);
  font-family: 'Fraunces', serif;
  font-weight: 500;
}

.text-body {
  font-size: 18px;
  line-height: 1.7;
  color: var(--gris-clair);
  max-width: 720px;
  margin-bottom: 20px;
}

.text-body strong { color: var(--blanc); font-weight: 600; }

/* ==================== PILOTE STORY ==================== */
.pilot-story {
  max-width: 900px;
  margin: 0 auto;
}

/* ==================== METHODE — 5 gestes ==================== */
.methode-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--nuit-line);
}

.geste {
  display: grid;
  grid-template-columns: 180px 200px 1fr;
  gap: 40px;
  padding: 32px 0;
  border-bottom: 1px solid var(--nuit-line);
  align-items: baseline;
}

.geste-jour {
  font-family: 'Archivo', sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--or);
  text-transform: uppercase;
}

.geste-nom {
  font-family: 'Archivo', sans-serif;
  font-size: 32px;
  font-weight: 700;
  color: var(--blanc);
  letter-spacing: -0.02em;
}

.geste-desc {
  font-size: 16px;
  line-height: 1.55;
  color: var(--gris-clair);
}

@media (max-width: 760px) {
  .geste {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 24px 0;
  }
  .geste-nom { font-size: 26px; }
}

/* ==================== PROGRAMME journée ==================== */
.programme-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.prog-block {
  padding: 40px;
  border: 1.5px solid var(--nuit-line-strong);
  background: rgba(255,255,255,0.02);
}

.prog-block.matin {
  border-color: var(--or);
}

.prog-block.aprem {
  border-color: var(--cyan);
}

.prog-time {
  font-family: 'Archivo', sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--or);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.prog-block.aprem .prog-time { color: var(--cyan); }

.prog-title {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.prog-desc {
  font-size: 15px;
  line-height: 1.6;
  color: var(--gris-clair);
  margin-bottom: 24px;
}

.prog-list {
  list-style: none;
  padding: 0;
  font-size: 14px;
  color: var(--gris-clair);
}

.prog-list li {
  padding: 8px 0;
  padding-left: 20px;
  position: relative;
}

.prog-list li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--or);
  font-weight: 700;
}

.prog-block.aprem .prog-list li::before { color: var(--cyan); }

@media (max-width: 760px) {
  .programme-grid { grid-template-columns: 1fr; gap: 20px; }
  .prog-block { padding: 28px; }
}

/* ==================== GROUPES ==================== */
.groupes-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.groupe-card {
  padding: 48px 40px;
  border: 1.5px solid var(--nuit-line-strong);
  background: rgba(255,255,255,0.02);
}

.groupe-age {
  font-family: 'Archivo', sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--cyan);
  margin-bottom: 12px;
  text-transform: uppercase;
}

.groupe-name {
  font-family: 'Archivo', sans-serif;
  font-size: 36px;
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.groupe-tagline {
  font-family: 'Fraunces', serif;
  font-style: italic;
  font-size: 20px;
  color: var(--or);
  margin-bottom: 24px;
}

.groupe-desc {
  font-size: 15px;
  line-height: 1.6;
  color: var(--gris-clair);
  margin-bottom: 24px;
}

.groupe-livrables {
  padding-top: 24px;
  border-top: 1px solid var(--nuit-line);
  font-size: 13px;
  color: var(--gris);
  letter-spacing: 1px;
  text-transform: uppercase;
  font-weight: 600;
}

.groupe-livrables .out {
  color: var(--blanc);
  font-family: 'Fraunces', serif;
  font-style: italic;
  font-size: 15px;
  text-transform: none;
  letter-spacing: 0;
  margin-top: 8px;
  font-weight: 400;
}

@media (max-width: 760px) {
  .groupes-grid { grid-template-columns: 1fr; }
  .groupe-card { padding: 32px 24px; }
}

/* ==================== ENCADREMENT ==================== */
.team-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.team-card {
  padding: 40px;
  background: var(--nuit-soft);
  border-top: 3px solid var(--or);
}

.team-role {
  font-family: 'Archivo', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--or);
  margin-bottom: 16px;
  text-transform: uppercase;
}

.team-name {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.team-bio {
  font-size: 15px;
  line-height: 1.6;
  color: var(--gris-clair);
}

@media (max-width: 760px) {
  .team-grid { grid-template-columns: 1fr; }
}

/* ==================== TARIFS ==================== */
.tarifs-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr 1fr;
  gap: 24px;
  align-items: stretch;
}

.tarif-card {
  padding: 40px 32px;
  border: 1.5px solid var(--nuit-line-strong);
  background: rgba(255,255,255,0.02);
  display: flex;
  flex-direction: column;
  text-align: center;
}

.tarif-card.featured {
  border: 2px solid var(--or);
  background: rgba(232, 167, 86, 0.06);
  transform: translateY(-8px);
  position: relative;
}

.tarif-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--or);
  color: var(--nuit);
  padding: 6px 16px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 2px;
}

.tarif-label {
  font-family: 'Archivo', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--or);
  margin-bottom: 12px;
  text-transform: uppercase;
}

.tarif-dates {
  font-family: 'Fraunces', serif;
  font-style: italic;
  font-size: 18px;
  color: var(--cyan);
  margin-bottom: 32px;
}

.tarif-prix {
  font-family: 'Archivo', sans-serif;
  font-size: 64px;
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1;
  color: var(--blanc);
  margin-bottom: 8px;
}

.tarif-old {
  font-size: 20px;
  color: var(--gris);
  text-decoration: line-through;
  font-weight: 400;
  margin-left: 8px;
  vertical-align: middle;
}

.tarif-sub {
  font-size: 13px;
  color: var(--gris-clair);
  margin-bottom: 32px;
  line-height: 1.4;
  flex-grow: 1;
}

.tarifs-note {
  margin-top: 40px;
  padding: 24px 32px;
  background: var(--nuit-soft);
  font-size: 14px;
  color: var(--gris-clair);
  line-height: 1.6;
  border-left: 3px solid var(--cyan);
}

@media (max-width: 900px) {
  .tarifs-grid { grid-template-columns: 1fr; }
  .tarif-card.featured { transform: none; }
}

/* ==================== FAQ ==================== */
.faq-item {
  padding: 24px 0;
  border-bottom: 1px solid var(--nuit-line);
  cursor: pointer;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: 'Archivo', sans-serif;
  font-size: 20px;
  font-weight: 600;
  color: var(--blanc);
  letter-spacing: -0.01em;
}

.faq-question .icon {
  color: var(--or);
  font-size: 24px;
  transition: transform 0.3s var(--ease);
}

.faq-item.open .faq-question .icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease), margin 0.4s var(--ease);
  font-size: 16px;
  line-height: 1.6;
  color: var(--gris-clair);
}

.faq-item.open .faq-answer {
  max-height: 400px;
  margin-top: 16px;
}

/* ==================== CONTACT / FORM ==================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.form-grid {
  display: grid;
  gap: 20px;
}

.form-row {
  display: grid;
  gap: 6px;
}

.form-row label {
  font-family: 'Archivo', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--or);
}

.form-row input,
.form-row select,
.form-row textarea {
  background: transparent;
  border: 1.5px solid var(--nuit-line-strong);
  color: var(--blanc);
  padding: 14px 16px;
  font-family: inherit;
  font-size: 15px;
  transition: border-color 0.2s;
}

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

.form-row textarea {
  min-height: 120px;
  resize: vertical;
}

.contact-info h3 {
  font-family: 'Archivo', sans-serif;
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 24px;
  letter-spacing: -0.01em;
}

.contact-item {
  padding: 16px 0;
  border-bottom: 1px solid var(--nuit-line);
}

.contact-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--or);
  margin-bottom: 4px;
  text-transform: uppercase;
}

.contact-value {
  font-size: 16px;
  color: var(--blanc);
}

@media (max-width: 900px) {
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
}

/* ==================== FOOTER ==================== */
footer {
  padding: 60px 40px 40px;
  border-top: 1px solid var(--nuit-line);
  font-size: 13px;
  color: var(--gris);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-content a { color: var(--gris-clair); }
.footer-content a:hover { color: var(--or); opacity: 1; }

/* ==================== REVEAL ==================== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }

/* ==================== MOBILE ==================== */
@media (max-width: 760px) {
  section { padding: 60px 20px; }
  .hero { padding: 100px 20px 60px; }
  .section-head { flex-direction: column; gap: 12px; align-items: flex-start; }
  .hero-dates { gap: 12px; }
  .date-plus { display: none; }
  .date-card { min-width: 100%; }
}