:root {
  --ink: oklch(20% 0.025 252);
  --muted: oklch(45% 0.036 252);
  --dim: oklch(60% 0.032 252);
  --paper: oklch(97% 0.014 230);
  --panel: oklch(99% 0.006 230);
  --panel-2: oklch(94% 0.018 230);
  --line: oklch(84% 0.03 238);
  --blue: oklch(55% 0.18 254);
  --green: oklch(62% 0.15 153);
  --yellow: oklch(86% 0.16 92);
  --red: oklch(62% 0.19 28);
  --violet: oklch(56% 0.15 300);
  --max: 1220px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 14% 18%, oklch(84% 0.12 92 / 0.34), transparent 24rem),
    radial-gradient(circle at 80% 8%, oklch(78% 0.12 254 / 0.26), transparent 28rem),
    linear-gradient(90deg, oklch(84% 0.02 238 / 0.42) 1px, transparent 1px),
    linear-gradient(180deg, oklch(84% 0.02 238 / 0.42) 1px, transparent 1px),
    var(--paper);
  background-size: auto, auto, 36px 36px, 36px 36px, auto;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  letter-spacing: 0;
}

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

.wrap {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.top {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: oklch(97% 0.014 230 / 0.88);
  backdrop-filter: blur(16px);
}

.nav {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 850;
  letter-spacing: -0.025em;
}

.mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  color: var(--panel);
  background:
    linear-gradient(90deg, var(--blue) 0 25%, var(--red) 25% 50%, var(--yellow) 50% 75%, var(--green) 75%);
  border: 1px solid var(--ink);
  box-shadow: 4px 4px 0 var(--ink);
  font-size: 0.72rem;
}

.links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 4px;
  color: var(--muted);
  font-size: 0.9rem;
}

.links a {
  padding: 8px 10px;
  border: 1px solid transparent;
}

.links a:hover {
  border-color: var(--line);
  background: var(--panel);
  color: var(--blue);
}

.hero {
  padding: clamp(52px, 8vw, 104px) 0 42px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(350px, 0.72fr);
  grid-template-areas:
    "head form"
    "card form";
  gap: clamp(28px, 5vw, 76px);
  align-items: start;
}

.hero-grid .hero-head { grid-area: head; }
.hero-grid .hero-form { grid-area: form; align-self: start; position: sticky; top: 88px; }
.hero-grid .aio-card { grid-area: card; }

/* Carte de capture de lead — reprend la signature brutaliste du site */
.lead-card {
  border: 1px solid var(--ink);
  background: var(--panel);
  box-shadow: 12px 12px 0 var(--ink);
  padding: clamp(20px, 3vw, 28px);
}

.lead-card .lead-card-title {
  margin: 0 0 6px;
  font-size: clamp(1.3rem, 2.2vw, 1.7rem);
  line-height: 1;
  letter-spacing: -0.04em;
}

.lead-card .lead-card-sub {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 0.92rem;
}

.lead-card form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.lead-card input,
.lead-card textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
  padding: 12px 13px;
  font-family: inherit;
  font-size: 0.96rem;
}

.lead-card input:focus,
.lead-card textarea:focus {
  outline: none;
  border-color: var(--blue);
}

.lead-card input::placeholder,
.lead-card textarea::placeholder {
  color: var(--dim);
}

.lead-submit {
  border: 1px solid var(--ink);
  background: var(--yellow);
  color: var(--ink);
  padding: 13px 16px;
  font-weight: 900;
  font-size: 0.98rem;
  cursor: pointer;
  box-shadow: 4px 4px 0 var(--ink);
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}

.lead-submit:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--ink);
}

.lead-submit[disabled] {
  opacity: 0.6;
  cursor: default;
}

.lead-success {
  color: var(--green);
  font-size: 0.92rem;
  font-weight: 800;
  margin: 6px 0 0;
}

/* Formulaire de contact compact réutilisé dans les pages secondaires (sidebar) */
.side-form {
  border: 1px solid var(--ink);
  background: var(--panel);
  box-shadow: 8px 8px 0 var(--ink);
  padding: 18px;
  margin-bottom: 16px;
}

.side-form h3 {
  margin: 0 0 4px;
  letter-spacing: -0.03em;
}

.side-form p {
  margin: 0 0 14px;
  font-size: 0.85rem;
}

.side-form form {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.side-form input,
.side-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
  padding: 10px 11px;
  font-family: inherit;
  font-size: 0.9rem;
}

.side-form input:focus,
.side-form textarea:focus {
  outline: none;
  border-color: var(--blue);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  border: 1px solid var(--ink);
  background: var(--panel);
  padding: 6px 10px;
  font-size: 0.78rem;
  font-weight: 850;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.tag::before {
  content: "";
  width: 9px;
  height: 9px;
  background: var(--blue);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin: 22px 0 22px;
  max-width: 940px;
  font-size: clamp(3.1rem, 7.6vw, 7.2rem);
  line-height: 0.88;
  letter-spacing: -0.062em;
}

h1 span {
  color: var(--blue);
}

.lead {
  max-width: 760px;
  color: var(--muted);
  font-size: clamp(1.08rem, 1.8vw, 1.35rem);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 32px;
}

.stat {
  border: 1px solid var(--line);
  background: var(--panel);
  padding: 14px;
}

.stat b {
  display: block;
  font-size: 2rem;
  line-height: 1;
  letter-spacing: -0.05em;
}

.stat span {
  color: var(--muted);
  font-size: 0.82rem;
}

.aio-card {
  border: 1px solid var(--ink);
  background: var(--panel);
  box-shadow: 12px 12px 0 var(--ink);
}

.searchbar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 16px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: var(--paper);
}

.g-dot {
  width: 13px;
  height: 13px;
  border-radius: 99px;
  background: conic-gradient(var(--blue), var(--red), var(--yellow), var(--green), var(--blue));
}

.overview {
  margin: 0 16px 16px;
  border: 1px solid var(--line);
  background: oklch(96% 0.018 230);
  padding: 16px;
}

.overview-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
  font-size: 0.82rem;
  color: var(--muted);
}

.overview h3 {
  margin-bottom: 10px;
  letter-spacing: -0.03em;
}

.source-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 14px;
}

.source {
  min-height: 82px;
  border: 1px solid var(--line);
  background: var(--panel);
  padding: 10px;
  color: var(--muted);
  font-size: 0.8rem;
}

.source b {
  display: block;
  color: var(--ink);
  margin-bottom: 6px;
}

.section {
  padding: clamp(54px, 8vw, 104px) 0;
}

.section-head {
  display: grid;
  grid-template-columns: 0.42fr 1fr;
  gap: clamp(24px, 5vw, 72px);
  align-items: end;
  margin-bottom: 30px;
  border-top: 2px solid var(--ink);
  padding-top: 18px;
}

.kicker {
  color: var(--blue);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.78rem;
}

h2 {
  margin: 0;
  font-size: clamp(2rem, 4.6vw, 4.6rem);
  line-height: 0.94;
  letter-spacing: -0.055em;
}

.section-head p {
  color: var(--muted);
  margin-bottom: 0;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line);
  background: var(--panel);
}

.time {
  min-height: 230px;
  padding: 18px;
  border-right: 1px solid var(--line);
}

.time:last-child {
  border-right: 0;
}

.time b {
  display: block;
  margin-bottom: 30px;
  color: var(--blue);
  font-size: 1.6rem;
}

.time h3 {
  letter-spacing: -0.035em;
}

.time p,
.surface p,
.panel p,
.term p,
.page-panel p,
.lab-card p,
li {
  color: var(--muted);
}

.surfaces {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.surface,
.panel,
.term,
.page-panel,
.side {
  border: 1px solid var(--line);
  background: var(--panel);
}

.surface {
  min-height: 330px;
  padding: 18px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.surface:nth-child(2),
.surface:nth-child(4) {
  transform: translateY(24px);
}

.badge {
  width: fit-content;
  border: 1px solid var(--line);
  padding: 5px 8px;
  font-size: 0.76rem;
  font-weight: 850;
}

.surface:nth-child(1) .badge { color: var(--blue); }
.surface:nth-child(2) .badge { color: var(--red); }
.surface:nth-child(3) .badge { color: var(--green); }
.surface:nth-child(4) .badge { color: var(--violet); }

.link {
  display: inline-flex;
  margin-top: 14px;
  color: var(--blue);
  font-weight: 850;
}

.link::after {
  content: ">";
  margin-left: 8px;
}

.observatory {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 14px;
}

.panel {
  padding: clamp(22px, 4vw, 40px);
}

.query-table {
  display: grid;
  gap: 8px;
}

.field-lab {
  display: grid;
  grid-template-columns: 1.2fr 0.9fr 0.9fr;
  gap: 0;
  border: 1px solid var(--ink);
  background: var(--panel);
}

.lab-card {
  min-height: 290px;
  padding: clamp(20px, 3vw, 30px);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.lab-card:last-child {
  border-right: 0;
}

.lab-card.primary {
  background:
    linear-gradient(135deg, oklch(94% 0.04 254), transparent 58%),
    var(--panel);
}

.lab-card span {
  width: fit-content;
  border: 1px solid var(--ink);
  padding: 5px 8px;
  font-weight: 900;
}

.lab-card h3 {
  max-width: 12ch;
  font-size: clamp(1.6rem, 3vw, 3.1rem);
  line-height: 0.94;
  letter-spacing: -0.05em;
}

.query {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 12px;
  align-items: center;
  border-top: 1px solid var(--line);
  padding: 12px 0;
}

.chip {
  border: 1px solid var(--line);
  background: var(--paper);
  padding: 4px 8px;
  color: var(--muted);
  font-size: 0.78rem;
}

.glossary {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
}

.term {
  min-height: 132px;
  padding: 14px;
}

.newsletter {
  display: grid;
  grid-template-columns: 1fr minmax(300px, 0.46fr);
  gap: 20px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--panel);
  padding: clamp(24px, 4vw, 44px);
}

.newsletter p {
  color: oklch(84% 0.026 230);
}

.form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  align-self: end;
}

.form input {
  min-width: 0;
  border: 1px solid oklch(45% 0.035 252);
  background: oklch(26% 0.025 252);
  color: var(--panel);
  padding: 14px;
}

.form button {
  border: 1px solid var(--yellow);
  background: var(--yellow);
  color: var(--ink);
  padding: 14px 18px;
  font-weight: 900;
  cursor: pointer;
}

.footer {
  margin-top: 70px;
  border-top: 2px solid var(--ink);
  padding: 34px 0;
  color: var(--muted);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
}

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

.page-hero {
  padding: clamp(50px, 7vw, 92px) 0 28px;
}

.page-hero h1 {
  font-size: clamp(2.8rem, 6.4vw, 6.1rem);
}

.page-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.74fr) minmax(280px, 0.26fr);
  gap: 16px;
  padding-bottom: 70px;
}

.page-panel {
  padding: clamp(22px, 4vw, 42px);
}

.page-panel h2 {
  margin: 30px 0 12px;
  font-size: clamp(1.7rem, 3vw, 2.8rem);
}

.side {
  position: sticky;
  top: 88px;
  align-self: start;
  padding: 18px;
}

.side a {
  display: block;
  border-top: 1px solid var(--line);
  padding: 10px 0;
  color: var(--muted);
}

.side a:hover {
  color: var(--blue);
}

@media (max-width: 980px) {
  .links {
    display: none;
  }

  .section-head,
  .observatory,
  .newsletter,
  .page-grid {
    grid-template-columns: 1fr;
  }

  /* Mobile : H1 (head) puis FORMULAIRE, puis la carte de démo AIO */
  .hero-grid {
    grid-template-columns: 1fr;
    grid-template-areas:
      "head"
      "form"
      "card";
  }

  .hero-grid .hero-form {
    position: static;
    top: auto;
  }

  .side {
    position: static;
    top: auto;
  }

  .hero-stats,
  .source-grid,
  .timeline,
  .surfaces,
  .field-lab,
  .glossary {
    grid-template-columns: 1fr;
  }

  .lab-card {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .lab-card:last-child {
    border-bottom: 0;
  }

  .time {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .surface:nth-child(2),
  .surface:nth-child(4) {
    transform: none;
  }

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