/* ========== Variables ========== */
:root {
  color-scheme: dark;

  /* Couleurs */
  --bg: #070b18;
  --surface: #0e1425;
  --surface-raised: #141d33;
  --text: #f5f7ff;
  --text-soft: #c2c8d7;
  --muted: #a8b0c5;
  --orange: #f7931a;
  --orange-light: #ffa940;
  --on-orange: #101522;
  --blue: #4388ff;
  --line: rgba(174, 193, 235, .13);
  --line-strong: rgba(255, 255, 255, .2);

  /* Typographie */
  --font-body: 'DM Sans', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Space Grotesk', var(--font-body);
  --font-brand: Georgia, 'Times New Roman', serif;

  /* Mise en page (espacements : 4, 8, 12, 16, 24, 32, 48, 64, 96) */
  --max-width: 1160px;
  --gutter: 32px;
  --header-height: 88px;
  --radius: 8px;
  --radius-lg: 12px;
}

/* ========== Base ========== */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

h1, h2, h3 {
  margin: 0;
  font-family: var(--font-display);
  line-height: 1.1;
}

h1 span,
h2 span { color: var(--orange); }

/* Bandes pleine largeur, contenu centré sur --max-width */
.site-header,
.hero,
.section,
.site-footer {
  padding-inline: max(var(--gutter), calc((100% - var(--max-width)) / 2));
}

/* ========== En-tête ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: var(--text);
  background: var(--orange);
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
}

.brand-name {
  font-family: var(--font-brand);
  font-size: 17px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: .045em;
}

.brand-name b {
  display: block;
  margin-top: 4px;
  color: var(--orange);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
  color: var(--text-soft);
  font-size: 14px;
}

.main-nav a:not(.nav-cta):hover { color: var(--orange); }

.nav-cta {
  padding: 12px 16px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  color: var(--text);
  transition: border-color .2s ease, color .2s ease;
}

.nav-cta:hover {
  border-color: var(--orange);
  color: var(--orange);
}

.nav-cta span {
  margin-left: 8px;
  color: var(--orange);
}

.menu-toggle { display: none; }

/* ========== Hero ========== */
.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: 80px 48px;
  /* Fond de secours si la vidéo ne charge pas ou est désactivée */
  background:
    radial-gradient(ellipse at 85% 20%, rgba(67, 136, 255, .18), transparent 60%),
    radial-gradient(ellipse at 70% 90%, rgba(247, 147, 26, .1), transparent 55%),
    var(--bg);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(90deg, rgba(7, 11, 24, .96) 0%, rgba(7, 11, 24, .84) 48%, rgba(7, 11, 24, .58) 100%);
}

.hero-video {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-copy { max-width: 780px; }

.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 24px;
  color: var(--text-soft);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.eyebrow-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 14px rgba(247, 147, 26, .8);
}

h1 {
  max-width: 680px;
  font-size: clamp(42px, 5.25vw, 68px);
  line-height: 1.08;
  letter-spacing: -.055em;
}

.intro {
  max-width: 630px;
  margin: 24px 0 0;
  color: var(--text-soft);
  font-size: 17px;
  line-height: 1.75;
}

.supporting-copy {
  max-width: 580px;
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.proof-points {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-size: 13px;
}

.proof-points li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.proof-points span {
  color: var(--orange);
  font-size: 14px;
}

/* ========== Boutons ========== */
.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 0 24px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 700;
  transition: transform .2s ease, background .2s ease;
}

.button:hover { transform: translateY(-2px); }

.button-primary {
  color: var(--on-orange);
  background: var(--orange);
  box-shadow: 0 8px 28px rgba(247, 147, 26, .15);
}

.button-primary:hover { background: var(--orange-light); }

.button-primary span { font-size: 18px; }

.button-secondary {
  border: 1px solid var(--line-strong);
  color: var(--text);
}

.button-secondary:hover { background: rgba(255, 255, 255, .06); }

/* ========== Sections ========== */
.section {
  padding-block: 96px;
  border-top: 1px solid var(--line);
}

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

.section-heading .eyebrow {
  justify-content: center;
  margin-bottom: 16px;
}

h2 {
  font-size: clamp(32px, 4vw, 44px);
  letter-spacing: -.045em;
}

#parcours {
  padding-top: 40px;
}

#parcours-title {
  position: relative;
  top: -12px;
  font-size: clamp(28px, 3.4vw, 36px);
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 48px;
}

.card {
  position: relative;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, var(--surface-raised), var(--surface));
  transition: transform .2s ease, border-color .2s ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(247, 147, 26, .38);
}

#parcours .cards {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

#parcours .foundation-feature,
#parcours .market-feature,
#parcours .advanced-feature {
  position: relative;
  grid-column: 1 / -1;
  display: block;
  min-height: 420px;
  overflow: hidden;
  border-radius: var(--radius-lg);
  isolation: isolate;
  opacity: 0;
  transform: translateY(28px) scale(.98);
  transition: opacity .9s ease, transform .9s cubic-bezier(.2, .7, .2, 1);
}

#parcours .foundation-feature.is-visible,
#parcours .market-feature.is-visible,
#parcours .advanced-feature.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

#parcours .foundation-feature::before,
#parcours .market-feature::before,
#parcours .advanced-feature::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(90deg, rgba(7, 11, 24, .88) 0%, rgba(7, 11, 24, .55) 48%, rgba(7, 11, 24, .08) 100%),
    linear-gradient(0deg, rgba(7, 11, 24, .55), transparent 65%);
}

#parcours .foundation-feature .card-image,
#parcours .market-feature .card-image,
#parcours .advanced-feature .card-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  aspect-ratio: auto;
  margin: 0;
  border-radius: 0;
  object-fit: cover;
}

#parcours .foundation-feature .card-copy,
#parcours .market-feature .card-copy,
#parcours .advanced-feature .card-copy {
  position: absolute;
  z-index: 2;
  left: clamp(24px, 6vw, 64px);
  bottom: clamp(24px, 6vw, 56px);
  max-width: 620px;
}

#parcours .foundation-feature h3,
#parcours .market-feature h3,
#parcours .advanced-feature h3 {
  margin: 0 0 12px;
  color: var(--orange);
  font-size: clamp(28px, 4vw, 40px);
}

#parcours .foundation-feature p,
#parcours .market-feature p,
#parcours .advanced-feature p {
  margin: 0;
  color: var(--text-soft);
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.7;
}

.card-number {
  position: absolute;
  top: 24px;
  right: 24px;
  color: var(--muted);
  font-family: var(--font-display);
  font-size: 13px;
}

.card-icon {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(247, 147, 26, .24);
  border-radius: 10px;
  color: var(--orange);
  background: rgba(247, 147, 26, .07);
  font-size: 20px;
}

.card-image {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  margin-top: 24px;
  border-radius: var(--radius);
  object-fit: cover;
}

.card h3 {
  margin: 24px 0 8px;
  font-size: 20px;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.65;
}

/* ========== Appel à l’action ========== */
.cta-box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 48px;
  padding: 48px;
  border: 1px solid rgba(247, 147, 26, .25);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(ellipse at 0% 0%, rgba(247, 147, 26, .12), transparent 60%),
    var(--surface);
}

.cta-copy p:not(.eyebrow) {
  margin: 16px 0 32px;
  color: var(--muted);
}

.steps {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.steps li {
  position: relative;
  padding: 16px 16px 16px 64px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-raised);
  color: var(--muted);
  font-size: 15px;
  counter-increment: step;
}

.steps li::before {
  content: counter(step);
  position: absolute;
  left: 16px;
  top: 50%;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  transform: translateY(-50%);
  border-radius: 50%;
  color: var(--on-orange);
  background: var(--orange);
  font-family: var(--font-display);
  font-weight: 700;
}

.steps b { color: var(--text); }

/* ========== Appel à rejoindre la formation et réseaux sociaux ========== */
.bottom-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  padding: 0 var(--gutter) 64px;
}

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

.social-follow h2 {
  margin-bottom: 14px;
  color: var(--text-soft);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .02em;
}

.social-icons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.social-icons li {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 10px;
  background: #fff;
}

.social-icons li:first-child svg path { fill: #1877f2; }
.social-icons li[data-network="tiktok"],
.social-icons li[data-network="whatsapp"],
.social-icons li[data-network="x"] { background: #181818; }

.social-icons a {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  border-radius: inherit;
  transition: transform .2s ease;
}

.social-icons a:hover { transform: translateY(-2px); }

.social-icons svg {
  display: block;
  width: 26px;
  height: 26px;
}

/* ========== Pied de page ========== */
.site-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-block: 24px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.site-footer a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.site-footer a:hover { color: var(--orange); }

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}

/* Avertissement sur les risques, en dernière ligne du pied de page */
.footer-disclaimer {
  order: 1;
  flex-basis: 100%;
  max-width: 820px;
  margin: 0;
  font-size: 12px;
  line-height: 1.55;
  opacity: .85;
}

/* ========== Responsive ========== */
@media (max-width: 850px) {
  .cards { grid-template-columns: 1fr; }
  #parcours .foundation-feature {
    grid-template-columns: minmax(200px, 260px) 1fr;
    gap: 28px;
  }
  .cta-box {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 32px;
  }
}

@media (max-width: 650px) {
  :root {
    --gutter: 16px;
    --header-height: 72px;
  }

  .brand-mark {
    width: 36px;
    height: 36px;
    font-size: 22px;
  }

  .brand-name { font-size: 14px; }

  .menu-toggle {
    width: 44px;
    height: 44px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 6px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: transparent;
    cursor: pointer;
  }

  .menu-toggle span {
    width: 18px;
    height: 2px;
    background: var(--text);
    transition: transform .2s ease;
  }

  .menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }

  .main-nav {
    position: absolute;
    top: calc(100% + 8px);
    left: var(--gutter);
    right: var(--gutter);
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 16px;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: var(--surface-raised);
    box-shadow: 0 16px 35px rgba(0, 0, 0, .35);
    font-size: 15px;
  }

  .main-nav.is-open { display: flex; }
  .main-nav a { padding: 8px 4px; }
  .main-nav .nav-cta {
    padding: 12px;
    text-align: center;
  }

  .hero { padding-block: 56px 40px; }
  h1 { font-size: clamp(38px, 11vw, 56px); }
  .intro { margin-top: 16px; font-size: 16px; }
  .supporting-copy { font-size: 14px; }

  .hero-actions {
    flex-direction: column;
    margin-top: 24px;
  }

  .button { width: 100%; }

  .social-icons { gap: 12px; }
  .social-icons li { width: 32px; height: 32px; }
  .social-icons svg { width: 26px; height: 26px; }

  .proof-points {
    flex-direction: column;
    gap: 8px;
    margin-top: 24px;
  }

  .section { padding-block: 64px; }
  .cards { margin-top: 32px; gap: 12px; }
  #parcours .cards { grid-template-columns: 1fr; }
  #parcours .foundation-feature {
    grid-template-columns: minmax(100px, 38%) minmax(0, 1fr);
    gap: 16px;
  }
  #parcours .foundation-feature .card-image { width: 100%; }
  .cta-box { padding: 24px; }

  .site-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero-video { display: none; }
  #parcours .foundation-feature,
  #parcours .market-feature,
  #parcours .advanced-feature {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .button:hover,
  .card:hover { transform: none; }
  *, *::before, *::after {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}