:root {
  --bg: #0b0d14;
  --panel: #111720;
  --panel-2: #17212c;
  --line: #263241;
  --text: #ecf2f7;
  --muted: #98a6b5;
  --teal: #00d4c4;
  --sky: #42b8ff;
  --amber: #f6b84b;
  --rose: #f07284;
  --green: #70d38a;
  --max: 1120px;
  --shadow: 0 26px 90px rgba(0, 0, 0, 0.34);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
  letter-spacing: 0;
}

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

.site-topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 14px clamp(16px, 4vw, 38px);
  background: rgba(11, 13, 20, 0.88);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(14px);
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 18px;
  min-width: max-content;
}

.site-brand img {
  width: 34px;
  height: 34px;
  border-radius: 8px;
}

.site-brand span span { color: var(--teal); }

.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(12px, 3vw, 28px);
  color: var(--muted);
  font-size: 14px;
  font-weight: 650;
}

.site-nav a:hover { color: var(--text); }

.site-actions, .hero-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.primary-link, .ghost-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 9px 14px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 800;
  white-space: nowrap;
}

.primary-link {
  color: #061112;
  background: var(--teal);
  border: 1px solid color-mix(in srgb, var(--teal) 80%, white);
  box-shadow: 0 12px 32px rgba(0, 212, 196, 0.16);
}

.ghost-link {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.primary-link.large, .ghost-link.large {
  min-height: 46px;
  padding: 12px 18px;
}

.primary-link:hover, .ghost-link:hover {
  transform: translateY(-1px);
}

.hero {
  position: relative;
  min-height: calc(100svh - 64px);
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-items: center;
  padding: clamp(54px, 8vw, 90px) clamp(18px, 5vw, 48px) 74px;
  isolation: isolate;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(11, 13, 20, 0.96) 0%, rgba(11, 13, 20, 0.88) 42%, rgba(11, 13, 20, 0.52) 100%),
    linear-gradient(135deg, rgba(0, 212, 196, 0.16), rgba(240, 114, 132, 0.08));
  z-index: -2;
}

.hero-backdrop {
  position: absolute;
  inset: 0;
  z-index: -3;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: clamp(20px, 8vw, 120px);
  opacity: 0.24;
}

.hero-backdrop img {
  width: min(62vw, 720px);
  max-height: 78vh;
  object-fit: contain;
  filter: saturate(1.08);
}

.hero-content {
  width: min(100%, var(--max));
  margin: 0 auto;
  padding-bottom: 150px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--teal);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1, h2, h3, p { overflow-wrap: anywhere; }

h1 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(52px, 12vw, 128px);
  line-height: 0.92;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 720px;
  margin: 24px 0 28px;
  color: #d8e1ea;
  font-size: clamp(18px, 2.1vw, 24px);
}

.hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0;
  list-style: none;
  margin-top: 20px;
  max-width: 760px;
}

.hero-chips li {
  min-height: 32px;
  display: inline-flex;
  align-items: center;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  padding: 6px 10px;
  background: rgba(255, 255, 255, 0.045);
  color: #dce8ee;
  font-size: 13px;
  font-weight: 750;
}

.hero-preview {
  position: absolute;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%);
  width: min(calc(100% - 36px), 980px);
  min-height: 148px;
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  grid-template-rows: 38px minmax(0, 1fr);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(12, 17, 24, 0.86);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  overflow: hidden;
}

.preview-top {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 0 14px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.04);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 12px;
  font-weight: 800;
}

.preview-top span:first-child {
  color: var(--text);
}

.preview-sidebar {
  padding: 18px;
  background: rgba(255, 255, 255, 0.035);
  border-right: 1px solid rgba(255, 255, 255, 0.08);
}

.preview-sidebar span {
  display: flex;
  align-items: center;
  height: 24px;
  margin-bottom: 13px;
  border-radius: 4px;
  padding-inline: 8px;
  background: rgba(255, 255, 255, 0.08);
  color: rgba(236, 242, 247, 0.82);
  font-size: 12px;
  font-weight: 750;
}

.preview-sidebar span:nth-child(1) { background: var(--teal); color: #061112; }
.preview-sidebar span:nth-child(3) { background: rgba(66, 184, 255, 0.5); }
.preview-sidebar span:nth-child(4) { background: rgba(246, 184, 75, 0.48); }

.preview-main {
  padding: 18px;
  display: grid;
  gap: 10px;
  align-content: center;
}

.preview-row, .preview-tool, .preview-footer {
  min-height: 28px;
  border-radius: 7px;
  padding: 7px 10px;
  font-size: 13px;
  color: #dfe8ef;
}

.preview-row.user {
  justify-self: end;
  max-width: 58%;
  background: rgba(0, 212, 196, 0.16);
  border: 1px solid rgba(0, 212, 196, 0.28);
}

.preview-tool {
  max-width: 78%;
  background: rgba(66, 184, 255, 0.12);
  border: 1px solid rgba(66, 184, 255, 0.24);
}

.preview-row.ai {
  max-width: 70%;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.preview-footer {
  color: var(--muted);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 0;
  padding-left: 0;
}

.metrics, .section, .site-footer {
  width: min(calc(100% - 36px), var(--max));
  margin: 0 auto;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  padding: 26px 0 12px;
}

.metrics div, .feature-grid article, .guide-grid article, .agent-card, .market-card,
.plan-list div, .install pre, .release-card, .workflow-list div, .usecase-grid div,
.security-grid div, .final-cta {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: color-mix(in srgb, var(--panel) 84%, transparent);
}

.metrics div {
  min-height: 112px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.metrics strong, .plan-list strong {
  font-size: 18px;
  color: var(--text);
}

.metrics span, .plan-list span, .feature-grid p, .section-head p, .install p,
.workflow-list p, .usecase-grid span, .security-grid p {
  color: var(--muted);
}

.section {
  padding: clamp(54px, 8vw, 88px) 0;
}

.section-head {
  max-width: 700px;
  margin-bottom: 26px;
}

h2 {
  margin: 0;
  font-size: clamp(32px, 5vw, 56px);
  line-height: 1.02;
}

.section-head p:not(.eyebrow), .install p {
  font-size: 17px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.experience .section-head {
  margin-bottom: 0;
}

.workflow-list {
  display: grid;
  gap: 12px;
}

.workflow-list div {
  padding: 18px;
  display: grid;
  gap: 7px;
}

.workflow-list span {
  color: var(--teal);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.workflow-list strong, .usecase-grid strong, .security-grid strong {
  color: var(--text);
  font-size: 18px;
}

.workflow-list p, .security-grid p {
  margin: 0;
}

.guide {
  padding-top: 34px;
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.guide-grid article {
  min-height: 230px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: color-mix(in srgb, var(--panel) 86%, transparent);
  display: grid;
  align-content: start;
  gap: 10px;
}

.guide-grid article span {
  width: fit-content;
  min-height: 28px;
  display: inline-flex;
  align-items: center;
  border: 1px solid color-mix(in srgb, var(--teal) 48%, var(--line));
  border-radius: 999px;
  padding: 4px 9px;
  color: var(--teal);
  background: rgba(0, 212, 196, 0.08);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.guide-grid article h3 {
  margin: 4px 0 0;
}

.guide-grid article p {
  margin: 0;
  color: var(--muted);
}

.guide-grid article:nth-child(2) { border-color: rgba(66, 184, 255, 0.34); }
.guide-grid article:nth-child(3) { border-color: rgba(246, 184, 75, 0.34); }
.guide-grid article:nth-child(4) { border-color: rgba(112, 211, 138, 0.34); }
.guide-grid article:nth-child(5) { border-color: rgba(0, 212, 196, 0.36); }
.guide-grid article:nth-child(6) { border-color: rgba(240, 114, 132, 0.34); }

.agent-section {
  padding-top: 28px;
}

.agent-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.agent-card, .market-card {
  min-height: 224px;
  padding: 20px;
  display: grid;
  align-content: start;
  gap: 10px;
}

.agent-card span, .market-card span {
  width: fit-content;
  min-height: 28px;
  display: inline-flex;
  align-items: center;
  border: 1px solid color-mix(in srgb, var(--teal) 46%, var(--line));
  border-radius: 999px;
  padding: 4px 9px;
  color: var(--teal);
  background: rgba(0, 212, 196, 0.08);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.agent-card h3, .market-card h3 {
  margin: 2px 0 0;
}

.agent-card p, .market-card p {
  margin: 0;
  color: var(--muted);
}

.agent-card:nth-child(2) { border-color: rgba(66, 184, 255, 0.34); }
.agent-card:nth-child(3) { border-color: rgba(246, 184, 75, 0.34); }
.agent-card:nth-child(4) { border-color: rgba(112, 211, 138, 0.34); }
.agent-card:nth-child(5) { border-color: rgba(0, 212, 196, 0.36); }
.agent-card:nth-child(6) { border-color: rgba(240, 114, 132, 0.34); }

.market-card {
  grid-column: 1 / -1;
  min-height: 0;
  border-color: rgba(0, 212, 196, 0.42);
  background:
    linear-gradient(135deg, rgba(0, 212, 196, 0.1), rgba(66, 184, 255, 0.05)),
    color-mix(in srgb, var(--panel) 86%, transparent);
}

.feature-grid article {
  min-height: 180px;
  padding: 20px;
}

.feature-grid article:nth-child(2) { border-color: rgba(66, 184, 255, 0.34); }
.feature-grid article:nth-child(3) { border-color: rgba(246, 184, 75, 0.34); }
.feature-grid article:nth-child(4) { border-color: rgba(112, 211, 138, 0.34); }
.feature-grid article:nth-child(5) { border-color: rgba(0, 212, 196, 0.36); }
.feature-grid article:nth-child(6) { border-color: rgba(240, 114, 132, 0.34); }

h3 {
  margin: 0 0 12px;
  font-size: 22px;
}

.feature-grid p { margin: 0; }

.usecases {
  padding-top: 22px;
}

.usecase-grid, .security-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.security-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.usecase-grid div, .security-grid div {
  min-height: 150px;
  padding: 20px;
  display: grid;
  gap: 10px;
  align-content: start;
}

.security {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(300px, 0.8fr);
  gap: 32px;
  align-items: start;
}

.plan-list {
  display: grid;
  gap: 12px;
}

.plan-list div {
  padding: 18px;
  display: grid;
  gap: 6px;
}

.install {
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(320px, 1fr);
  gap: 20px;
  align-items: center;
  padding-bottom: 70px;
}

.install pre {
  margin: 0;
  padding: 18px;
  overflow-x: auto;
  color: #dce8ee;
  font-size: 14px;
}

.install .primary-link {
  justify-self: start;
}

.release-card {
  margin-top: 22px;
  padding: 18px;
  display: grid;
  gap: 8px;
  border-color: rgba(0, 212, 196, 0.3);
}

.release-card > span {
  color: var(--teal);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.release-card strong {
  font-size: 24px;
}

.release-card p {
  margin: 0;
}

.release-actions, .install-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 8px;
}

.final-cta {
  width: min(calc(100% - 36px), var(--max));
  margin: 0 auto 54px;
  padding: clamp(22px, 4vw, 34px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.final-cta h2 {
  font-size: clamp(28px, 4vw, 46px);
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 24px 0 34px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 14px;
}

.site-footer span:first-child {
  color: var(--text);
  font-weight: 800;
}

.site-footer a { color: var(--teal); font-weight: 800; }

@media (max-width: 900px) {
  .site-nav { display: none; }
  .hero {
    min-height: auto;
    padding-top: 52px;
  }
  .hero-content {
    padding-bottom: 190px;
  }
  .hero-backdrop {
    justify-content: center;
    padding: 0;
    opacity: 0.18;
  }
  .hero-backdrop img {
    width: 92vw;
  }
  .hero-preview {
    grid-template-columns: 118px minmax(0, 1fr);
  }
  .metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .guide-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .agent-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .usecase-grid, .security-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .split, .install {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .site-topbar {
    align-items: flex-start;
    gap: 10px;
    padding: 12px 14px;
  }
  .site-actions {
    justify-content: flex-end;
    gap: 8px;
  }
  .ghost-link, .primary-link {
    min-height: 34px;
    padding: 7px 10px;
    font-size: 13px;
  }
  .hero {
    padding: 42px 16px 58px;
  }
  .hero-content {
    padding-bottom: 210px;
  }
  h1 {
    font-size: clamp(50px, 17vw, 76px);
  }
  .hero-copy {
    font-size: 17px;
  }
  .hero-actions {
    align-items: stretch;
  }
  .primary-link.large, .ghost-link.large {
    flex: 1 1 140px;
  }
  .hero-preview {
    width: calc(100% - 24px);
    bottom: 16px;
    grid-template-columns: 1fr;
    grid-template-rows: 34px minmax(0, 1fr);
    min-height: 176px;
  }
  .preview-sidebar {
    display: none;
  }
  .preview-row.user, .preview-tool, .preview-row.ai {
    max-width: 100%;
    justify-self: stretch;
  }
  .metrics, .feature-grid, .guide-grid, .agent-grid, .usecase-grid, .security-grid {
    grid-template-columns: 1fr;
  }
  .metrics div, .feature-grid article, .guide-grid article, .agent-card {
    min-height: 0;
  }
  .section {
    padding: 46px 0;
  }
  .install pre {
    font-size: 12px;
  }
  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }
  .final-cta {
    flex-direction: column;
    align-items: stretch;
  }
  .final-cta .site-actions {
    align-items: stretch;
  }
}

/* =====================================================================
   AMÉLIORATIONS — accessibilité, focus, animations, FAQ, polish
   (ajouté sans modifier les règles existantes ci-dessus)
   ===================================================================== */

/* Lien d'évitement clavier */
.skip-link {
  position: absolute;
  left: 12px;
  top: -56px;
  z-index: 60;
  padding: 10px 16px;
  border-radius: 8px;
  background: var(--teal);
  color: #061112;
  font-weight: 800;
  font-size: 14px;
  transition: top 0.18s ease;
}
.skip-link:focus { top: 12px; outline: none; }

/* Focus visible cohérent au clavier (manquait totalement) */
a:focus-visible,
button:focus-visible,
summary:focus-visible,
.primary-link:focus-visible,
.ghost-link:focus-visible {
  outline: 2px solid var(--sky);
  outline-offset: 3px;
  border-radius: 8px;
}
.site-nav a {
  padding: 4px 2px;
  border-bottom: 1px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.site-nav a:hover { border-bottom-color: color-mix(in srgb, var(--teal) 60%, transparent); }

/* Boutons : transition douce + halo au survol */
.primary-link, .ghost-link {
  transition: transform 0.16s ease, box-shadow 0.16s ease, background 0.16s ease, border-color 0.16s ease;
}
.primary-link:hover {
  box-shadow: 0 16px 40px rgba(0, 212, 196, 0.28);
}
.ghost-link:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.22);
}

/* Titre hero en dégradé (avec repli couleur pleine) */
h1 {
  background: linear-gradient(120deg, #ffffff 0%, #bfeee9 46%, var(--teal) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
@supports not ((-webkit-background-clip: text) or (background-clip: text)) {
  h1 { color: var(--text); }
}

/* Cartes : légère élévation au survol */
.metrics div,
.feature-grid article,
.guide-grid article,
.agent-card,
.market-card,
.usecase-grid div,
.security-grid div,
.workflow-list div,
.plan-list div {
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}
.feature-grid article:hover,
.guide-grid article:hover,
.agent-card:hover,
.market-card:hover,
.usecase-grid div:hover,
.security-grid div:hover,
.workflow-list div:hover,
.plan-list div:hover,
.metrics div:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--teal) 45%, var(--line));
  background: color-mix(in srgb, var(--panel) 92%, var(--teal) 8%);
}

/* Chips hero en liste sémantique */
.hero-chips { list-style: none; margin-block: 20px 0; padding: 0; }
.hero-chips li {
  min-height: 32px;
  display: inline-flex;
  align-items: center;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  padding: 6px 10px;
  background: rgba(255, 255, 255, 0.045);
  color: #dce8ee;
  font-size: 13px;
  font-weight: 750;
}

/* FAQ — accordéon natif accessible */
.faq-list { display: grid; gap: 10px; }
.faq-list details {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: color-mix(in srgb, var(--panel) 84%, transparent);
  padding: 0 18px;
  transition: border-color 0.18s ease, background 0.18s ease;
}
.faq-list details[open] {
  border-color: color-mix(in srgb, var(--teal) 40%, var(--line));
  background: color-mix(in srgb, var(--panel) 90%, var(--teal) 6%);
}
.faq-list summary {
  cursor: pointer;
  list-style: none;
  padding: 16px 0;
  font-size: 17px;
  font-weight: 750;
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: "+";
  color: var(--teal);
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
  transition: transform 0.2s ease;
}
.faq-list details[open] summary::after { transform: rotate(45deg); }
.faq-list details p {
  margin: 0;
  padding: 0 0 18px;
  color: var(--muted);
  font-size: 15.5px;
  line-height: 1.55;
}

/* Footer : liens groupés */
.footer-links { display: inline-flex; gap: 16px; }
.footer-links a { color: var(--teal); font-weight: 800; }

/* Révélation au défilement */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
  will-change: opacity, transform;
}
.reveal.is-visible { opacity: 1; transform: none; }

/* Respect des préférences de mouvement réduit */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .primary-link:hover, .ghost-link:hover,
  .feature-grid article:hover, .guide-grid article:hover, .agent-card:hover, .market-card:hover, .usecase-grid div:hover,
  .security-grid div:hover, .workflow-list div:hover,
  .plan-list div:hover, .metrics div:hover { transform: none; }
}


/* H1 SEO : marque imposante + sous-titre descriptif lisible */
h1 .h1-brand { display: block; }
h1 .h1-sub {
  display: block;
  margin-top: 16px;
  max-width: 720px;
  font-size: clamp(20px, 2.4vw, 30px);
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: 0;
  background: none;
  color: #d8e1ea;
  -webkit-text-fill-color: #d8e1ea;
}