/* Odyssée Kairos — design system
   Palette et typographie dérivées du logo existant (cercle noir, méandre grec doré,
   "ODYSSEE KAIROS" en jaune, tagline en or). Cinzel (inspirée des inscriptions
   gréco-romaines) pour les titres, Inter pour le texte courant. */

:root {
  --color-bg: #0a0908;
  --color-bg-alt: #121110;
  --color-surface: #1a1815;
  --color-surface-border: rgba(201, 162, 39, 0.22);

  --color-gold: #c9a227;
  --color-gold-light: #e8c85f;
  --color-gold-dark: #8a6d1a;
  --color-yellow: #f5d90a;

  --color-text: #f3f1ea;
  --color-text-muted: #b6b0a1;
  --color-text-faint: #837c6c;

  --font-display: "Cinzel", "Iowan Old Style", serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --container-w: 1120px;
  --radius: 10px;
  --radius-sm: 6px;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6rem;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  touch-action: manipulation;
  -webkit-tap-highlight-color: rgba(201, 162, 39, 0.25);
}

section[id],
main [id] {
  scroll-margin-top: 90px;
}

h1, h2 {
  text-wrap: balance;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

.grid > * {
  min-width: 0;
}

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

a {
  color: var(--color-gold-light);
  text-decoration: none;
}

a:hover {
  color: var(--color-yellow);
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.2;
  margin: 0 0 var(--space-2);
  letter-spacing: 0.02em;
}

h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
}

h2 {
  font-size: clamp(1.6rem, 3.2vw, 2.4rem);
  color: var(--color-gold-light);
}

h3 {
  font-size: 1.3rem;
}

p {
  margin: 0 0 var(--space-2);
  color: var(--color-text-muted);
}

.container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 var(--space-3);
}

section {
  padding: var(--space-6) 0;
}

section.alt {
  background: var(--color-bg-alt);
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--space-1);
}

.lead {
  font-size: 1.15rem;
  max-width: 640px;
}

/* ---------- Nav ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 9, 8, 0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-surface-border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem var(--space-3);
  max-width: var(--container-w);
  margin: 0 auto;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  color: var(--color-text);
  font-size: 1.05rem;
  letter-spacing: 0.08em;
}

.nav-brand img {
  height: 36px;
  width: 36px;
}

.nav-links {
  display: flex;
  gap: var(--space-3);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

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

.nav-cta {
  display: inline-block;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  padding: 0.4rem 0.6rem;
  font-size: 1.1rem;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-gold-light), var(--color-gold));
  color: #17140a;
}

.btn-primary:hover {
  transform: translateY(-2px);
  color: #17140a;
  background: linear-gradient(135deg, #f0d878, var(--color-gold-light));
  box-shadow: 0 6px 18px rgba(201, 162, 39, 0.3);
}

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

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

.btn-block {
  width: 100%;
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: var(--space-6) 0 var(--space-5);
}

.hero-bg-media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 9, 8, 0.35) 0%, rgba(10, 9, 8, 0.7) 60%, var(--color-bg) 100%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
}

.hero-actions {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-3);
  flex-wrap: wrap;
}

.hero-badges {
  display: flex;
  gap: 0.6rem;
  margin-top: var(--space-2);
  flex-wrap: wrap;
}

.hero-badge {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(10, 9, 8, 0.55);
  backdrop-filter: blur(3px);
  border-radius: 999px;
  padding: 0.3rem 0.7rem;
  max-width: 100%;
}

.hero-pause-toggle {
  position: absolute;
  z-index: 3;
  top: var(--space-3);
  right: var(--space-3);
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  line-height: 1;
  color: var(--color-text);
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(10, 9, 8, 0.55);
  backdrop-filter: blur(3px);
  border-radius: 999px;
  cursor: pointer;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.hero-pause-toggle:hover {
  border-color: var(--color-gold);
  transform: translateY(-1px);
}

@media (max-width: 760px) {
  .hero-pause-toggle {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-pause-toggle {
    display: none;
  }
}

.hero-badge strong {
  color: var(--color-gold-light);
  font-weight: 600;
}

.hero-content h1,
.hero-content .lead,
.hero-content .eyebrow {
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.55);
}

.hero-content .lead {
  color: var(--color-text);
}


/* ---------- Cards ---------- */

.grid {
  display: grid;
  gap: var(--space-3);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

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

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius);
  padding: var(--space-3);
  transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}

.card:hover {
  border-color: var(--color-gold);
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.25);
}

.card-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(201, 162, 39, 0.12);
  color: var(--color-gold-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: var(--space-2);
}

.card-icon svg {
  width: 20px;
  height: 20px;
}

/* ---------- Meander motif (signature graphique, dérivée du logo) ---------- */

.meander-divider {
  height: 14px;
  margin: 0 auto var(--space-2);
  width: 100%;
  max-width: 220px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='14' viewBox='0 0 24 14'%3E%3Cpath d='M0 14 V3 H14 V9 H6' fill='none' stroke='%23c9a227' stroke-width='2' stroke-linecap='square'/%3E%3C/svg%3E");
  background-repeat: repeat-x;
  background-position: center;
  background-size: 24px 14px;
  opacity: 0.85;
}

.section-head .meander-divider,
.page-header .meander-divider {
  margin-top: var(--space-1);
}

.card-footer-link {
  display: inline-block;
  margin-top: var(--space-2);
  font-size: 0.9rem;
  font-weight: 600;
}

/* ---------- Pricing ---------- */

.pricing-card {
  background: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius);
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

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

.pricing-card.featured {
  border-color: var(--color-gold);
  box-shadow: 0 0 0 1px var(--color-gold);
}

.pricing-tier {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-gold);
}

.pricing-amount {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--color-text);
  margin: 0.3rem 0 0.2rem;
}

.pricing-amount span {
  font-size: 0.95rem;
  color: var(--color-text-faint);
  font-family: var(--font-body);
}

.pricing-list {
  list-style: none;
  margin: var(--space-2) 0;
  padding: 0;
  flex: 1;
}

.pricing-list li {
  padding: 0.4rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--color-text-muted);
  font-size: 0.92rem;
}

.pricing-list li:first-child {
  border-top: none;
}

/* ---------- Zone d'intervention (pôles) ---------- */

.pole-card {
  background: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius);
  padding: var(--space-3);
}

.pole-distance {
  font-family: var(--font-display);
  color: var(--color-gold-light);
  font-size: 1.1rem;
  margin-bottom: 0.3rem;
}

.pole-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: var(--space-2);
}

.tag {
  font-size: 0.78rem;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  border: 1px solid var(--color-surface-border);
  color: var(--color-text-muted);
}

.tag.priority {
  border-color: var(--color-gold);
  color: var(--color-gold-light);
}

/* ---------- Video case-study cards ---------- */

.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}

.video-card {
  background: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}

.video-card:hover {
  border-color: var(--color-gold);
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.25);
}

.video-frame {
  position: relative;
  aspect-ratio: 9 / 16;
  background: #000;
  cursor: pointer;
  overflow: hidden;
}

.video-frame.landscape {
  aspect-ratio: 16 / 9;
}

.video-frame img,
.video-frame video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.video-play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.05), rgba(0, 0, 0, 0.45));
  transition: background 0.15s ease;
}

.video-frame:hover .video-play-btn {
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.55));
}

.video-play-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: rgba(10, 9, 8, 0.55);
  border: 1px solid var(--color-gold-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gold-light);
  font-size: 1.4rem;
  backdrop-filter: blur(2px);
}

.video-meta {
  padding: 1rem 1.1rem;
}

.video-meta h3 {
  font-size: 1.02rem;
  margin-bottom: 0.25rem;
}

.video-meta p {
  font-size: 0.85rem;
  margin: 0;
}

.video-tag {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 0.4rem;
}

@media (max-width: 860px) {
  .video-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 560px) {
  .video-grid {
    grid-template-columns: 1fr;
  }
}

/* ---------- Form ---------- */

.form-field {
  margin-bottom: var(--space-2);
}

.form-field label {
  display: block;
  font-size: 0.88rem;
  color: var(--color-text-muted);
  margin-bottom: 0.35rem;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  background: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 0.9rem;
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.95rem;
}

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

.form-field input:focus-visible,
.form-field select:focus-visible,
.form-field textarea:focus-visible {
  outline: none;
  border-color: var(--color-gold);
  box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.35);
}

a:focus-visible,
button:focus-visible,
.btn:focus-visible,
.nav-toggle:focus-visible,
.video-frame:focus-visible {
  outline: 2px solid var(--color-gold-light);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
}

.form-note {
  font-size: 0.82rem;
  color: var(--color-text-faint);
}

.form-success {
  display: none;
  background: rgba(201, 162, 39, 0.12);
  border: 1px solid var(--color-gold);
  border-radius: var(--radius);
  padding: var(--space-3);
  color: var(--color-gold-light);
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--color-surface-border);
  padding: var(--space-4) 0;
  background: var(--color-bg-alt);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--space-4);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  margin-bottom: var(--space-2);
}

.footer-brand img {
  height: 40px;
  width: auto;
}

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: var(--color-text-muted);
  font-size: 0.92rem;
}

.footer-bottom {
  margin-top: var(--space-4);
  padding-top: var(--space-3);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-2);
  font-size: 0.82rem;
  color: var(--color-text-faint);
}

.link-btn {
  background: none;
  border: none;
  padding: 0;
  margin: 0;
  font: inherit;
  font-size: 0.82rem;
  color: var(--color-gold-light);
  cursor: pointer;
  text-decoration: none;
}

.link-btn:hover {
  color: var(--color-yellow);
}

.social-icons {
  display: flex;
  gap: var(--space-2);
}

.social-icons a {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--color-surface-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
}

.social-icons svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.social-icons a:hover {
  border-color: var(--color-gold);
  color: var(--color-yellow);
}

/* ---------- Page header (pages secondaires) ---------- */

.page-header {
  padding: var(--space-5) 0 var(--space-4);
  text-align: center;
  border-bottom: 1px solid var(--color-surface-border);
}

.page-header .lead {
  margin: 0 auto;
}

/* ---------- Legal page ---------- */

.legal-content h2 {
  margin-top: var(--space-4);
}

.legal-content p,
.legal-content li {
  color: var(--color-text-muted);
}

/* ---------- Utilities ---------- */

.text-center {
  text-align: center;
}

.mx-auto {
  margin-left: auto;
  margin-right: auto;
}

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

/* ---------- Barre de crédibilité (stats) ---------- */

.stats-bar {
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--color-surface-border);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  text-align: center;
}

.stat-value {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  color: var(--color-gold-light);
  margin-bottom: 0.2rem;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.section-head {
  max-width: 640px;
  margin: 0 auto var(--space-4);
  text-align: center;
}

.section-head.left {
  margin-left: 0;
  text-align: left;
}

/* ---------- Repères (encart chiffré, remplace la liste à puces redondante) ---------- */

.info-strip {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.info-strip-item {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-2);
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--color-surface-border);
}

.info-strip-item:first-child {
  border-top: 1px solid var(--color-surface-border);
}

.info-strip-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.info-strip-value {
  font-family: var(--font-display);
  font-size: 0.95rem;
  color: var(--color-gold-light);
  text-align: right;
  white-space: nowrap;
}

/* ---------- Zone d'intervention — piste de distance (remplace 3 cartes identiques) ---------- */

.distance-track {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  position: relative;
  padding-top: var(--space-3);
}

.distance-track::before {
  content: "";
  position: absolute;
  top: 6px;
  left: 16.5%;
  right: 16.5%;
  height: 1px;
  background: var(--color-surface-border);
}

.distance-stop {
  position: relative;
  text-align: center;
  padding: 0 var(--space-2);
}

.distance-stop::before {
  content: "";
  position: absolute;
  top: -22px;
  left: 50%;
  transform: translateX(-50%);
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--color-gold);
  box-shadow: 0 0 0 4px var(--color-bg);
}

.distance-stop .pole-distance {
  font-size: 1.3rem;
}

/* ---------- Animations discrètes (fondu arrivée + reveal au scroll) ---------- */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.hero-content > * {
  animation: fadeInUp 0.7s ease both;
}

.hero-content > *:nth-child(2) { animation-delay: 0.06s; }
.hero-content > *:nth-child(3) { animation-delay: 0.12s; }
.hero-content > *:nth-child(4) { animation-delay: 0.18s; }
.hero-content > *:nth-child(5) { animation-delay: 0.24s; }
.hero-content > *:nth-child(6) { animation-delay: 0.3s; }

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .hero-content > * {
    animation: none;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---------- Responsive ---------- */

@media (max-width: 860px) {
  .hero {
    min-height: 80vh;
  }

  .grid-3 {
    grid-template-columns: 1fr;
  }

  .grid-2 {
    grid-template-columns: 1fr;
  }

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

  .form-row {
    grid-template-columns: 1fr;
  }

  .nav-links,
  .nav-cta {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-header.menu-open .nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg);
    padding: var(--space-2) var(--space-3);
    border-bottom: 1px solid var(--color-surface-border);
    gap: var(--space-2);
  }

  .site-header.menu-open .nav-cta {
    display: inline-flex;
    margin: var(--space-2) var(--space-3) 0;
  }

  .distance-track {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .distance-track::before {
    top: 0;
    bottom: 0;
    left: 6px;
    width: 1px;
    height: auto;
    right: auto;
  }

  .distance-stop {
    text-align: left;
    padding: 0 0 0 var(--space-3);
  }

  .distance-stop::before {
    top: 4px;
    left: 0;
    transform: none;
  }
}