/* LALANDA — page de présentation. Palette de l'application (Autonomous Intelligence Architecture). */
:root {
  --bg: #0b1326;
  --bg-alt: #0f1830;
  --surface: #131b2e;
  --surface-2: #171f33;
  --surface-3: #222a3d;
  --border: #2d3449;
  --text: #dae2fd;
  --text-strong: #f1f3ff;
  --muted: #908fa0;
  --muted-2: #c7c4d7;
  --primary: #6366f1;
  --primary-2: #8083ff;
  --primary-soft: #c0c1ff;
  --sky: #38bdf8;
  --ok: #10b981;
  --warn: #f59e0b;
  --radius: 16px;
  --wrap: 1160px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--primary-soft); text-decoration: none; }
a:hover { color: var(--text-strong); }
h1, h2, h3 { color: var(--text-strong); line-height: 1.2; margin: 0; letter-spacing: -0.02em; }
p { margin: 0; }
.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 16px; }
@media (min-width: 720px) { .wrap { padding: 0 32px; } }
.muted { color: var(--muted); font-size: 14px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--primary); color: #fff; padding: 8px 14px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 16px; }
:focus-visible { outline: 2px solid var(--primary-soft); outline-offset: 3px; border-radius: 6px; }

/* Boutons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 18px; border-radius: 12px; font-weight: 600; font-size: 15px;
  border: 1px solid transparent; transition: background .15s, border-color .15s, transform .15s; white-space: nowrap;
}
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 8px 24px -10px rgba(99, 102, 241, .8); }
.btn-primary:hover { background: #5458e8; color: #fff; transform: translateY(-1px); }
.btn-ghost { border-color: var(--border); color: var(--text); background: rgba(255, 255, 255, .02); }
.btn-ghost:hover { border-color: var(--primary-2); color: var(--text-strong); }
.btn-lg { padding: 14px 22px; font-size: 16px; }
.btn-sm { padding: 7px 14px; font-size: 13px; border-radius: 10px; }

/* Barre du haut */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(11, 19, 38, .82); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(45, 52, 73, .6);
}
.topbar-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text-strong); font-weight: 800; letter-spacing: .08em; font-size: 16px; }
.brand-sm { font-size: 14px; }
.menu { display: flex; align-items: center; gap: 28px; }
.menu > a { color: var(--muted-2); font-size: 15px; font-weight: 500; }
.menu > a:hover { color: var(--text-strong); }
.menu-actions { display: inline-flex; gap: 10px; margin-left: 8px; }
.menu-toggle { display: none; background: none; border: 1px solid var(--border); border-radius: 10px; width: 42px; height: 42px; padding: 0; cursor: pointer; flex-direction: column; align-items: center; justify-content: center; gap: 5px; }
.menu-toggle .bar { width: 18px; height: 2px; background: var(--text); border-radius: 2px; }
@media (max-width: 880px) {
  .menu-toggle { display: inline-flex; }
  .menu {
    display: none; position: absolute; top: 68px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 4px; padding: 12px 16px 20px;
    background: var(--bg); border-bottom: 1px solid var(--border);
  }
  .menu.open { display: flex; }
  .menu > a { padding: 10px 4px; }
  .menu-actions { margin: 8px 0 0; }
  .menu-actions .btn { flex: 1; }
}

/* Accueil */
.hero { position: relative; overflow: hidden; padding: 72px 0 88px; }
.hero::before {
  content: ""; position: absolute; inset: -30% -10% auto auto; width: 720px; height: 720px;
  background: radial-gradient(closest-side, rgba(99, 102, 241, .28), transparent 70%); pointer-events: none;
}
.hero::after {
  content: ""; position: absolute; inset: auto auto -40% -15%; width: 560px; height: 560px;
  background: radial-gradient(closest-side, rgba(56, 189, 248, .10), transparent 70%); pointer-events: none;
}
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
@media (max-width: 960px) { .hero-grid { grid-template-columns: 1fr; gap: 48px; } .hero { padding: 48px 0 64px; } }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px; border-radius: 99px;
  border: 1px solid rgba(99, 102, 241, .35); background: rgba(99, 102, 241, .08);
  color: var(--primary-soft); font-size: 13px; font-weight: 600; margin-bottom: 22px;
}
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 4px rgba(16, 185, 129, .15); }
h1 { font-size: clamp(36px, 5.2vw, 60px); font-weight: 800; }
.grad { background: linear-gradient(100deg, #a5b4fc, #6366f1 55%, #38bdf8); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { margin-top: 22px; font-size: 18px; color: var(--muted-2); max-width: 580px; }
.lead-sm { margin-top: 16px; color: var(--muted-2); font-size: 17px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 8px 22px; list-style: none; padding: 0; margin: 28px 0 0; color: var(--muted); font-size: 14px; }
.hero-points li::before { content: ""; display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--primary-2); margin-right: 8px; vertical-align: middle; }

/* Aperçu produit */
.mock {
  background: linear-gradient(180deg, var(--surface-2), var(--surface));
  border: 1px solid var(--border); border-radius: 22px; padding: 22px;
  box-shadow: 0 40px 80px -40px rgba(0, 0, 0, .7), 0 0 0 1px rgba(99, 102, 241, .08) inset;
}
.mock-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.mock-agent { display: inline-flex; align-items: center; gap: 10px; font-weight: 600; color: var(--text-strong); font-size: 15px; }
.avatar { width: 32px; height: 32px; border-radius: 10px; display: grid; place-items: center; background: var(--surface-3); border: 1px solid var(--border); font-weight: 700; color: var(--primary-soft); font-size: 14px; }
.pill { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 99px; font-size: 12px; font-weight: 600; white-space: nowrap; }
.pill::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.pill-warn { color: var(--warn); background: rgba(245, 158, 11, .1); border: 1px solid rgba(245, 158, 11, .25); }
.mock-goal { margin-top: 16px; padding: 14px 16px; border-radius: 14px; background: rgba(99, 102, 241, .07); border: 1px solid rgba(99, 102, 241, .18); color: var(--text); font-size: 14px; line-height: 1.5; }
.mock-plan { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 10px; counter-reset: s; }
.mock-plan li { position: relative; padding-left: 30px; font-size: 14px; color: var(--muted-2); counter-increment: s; }
.mock-plan li::before {
  content: counter(s); position: absolute; left: 0; top: 1px; width: 20px; height: 20px; border-radius: 50%;
  display: grid; place-items: center; font-size: 11px; font-weight: 700; background: var(--surface-3); color: var(--muted-2);
}
.mock-plan li.done::before { content: ""; background: rgba(16, 185, 129, .15); border: 1px solid rgba(16, 185, 129, .5); }
.mock-plan li.done::after { content: ""; position: absolute; left: 7px; top: 6px; width: 5px; height: 9px; border: solid var(--ok); border-width: 0 2px 2px 0; transform: rotate(45deg); }
.mock-plan li.now::before { background: rgba(245, 158, 11, .15); color: var(--warn); border: 1px solid rgba(245, 158, 11, .5); }
.mock-plan span { color: var(--text-strong); font-weight: 600; margin-right: 6px; }
.mock-plan em { color: var(--primary-soft); font-style: normal; font-size: 12px; }
.mock-approval { margin-top: 18px; padding: 14px 16px; border-radius: 14px; border: 1px solid rgba(245, 158, 11, .35); background: rgba(245, 158, 11, .05); display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; }
.mock-approval-title { color: var(--text-strong); font-weight: 600; font-size: 14px; }
.mock-approval-meta { color: var(--muted); font-size: 13px; margin-top: 2px; }
.mock-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 12px; }
.mock-foot { display: flex; justify-content: space-between; margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--border); font-size: 13px; color: var(--muted); }
.mock-cost { color: var(--text-strong); font-weight: 700; }

/* Sections */
.section { padding: 96px 0; }
.section-alt { background: var(--bg-alt); border-top: 1px solid rgba(45, 52, 73, .5); border-bottom: 1px solid rgba(45, 52, 73, .5); }
@media (max-width: 720px) { .section { padding: 64px 0; } }
.kicker { color: var(--primary-soft); font-weight: 700; font-size: 13px; text-transform: uppercase; letter-spacing: .12em; margin-bottom: 12px; }
h2 { font-size: clamp(28px, 3.4vw, 40px); font-weight: 800; max-width: 720px; }
h3 { font-size: 18px; font-weight: 700; }

.steps { list-style: none; padding: 0; margin: 48px 0 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
@media (max-width: 960px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .steps { grid-template-columns: 1fr; } }
.steps li { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.step-n { display: inline-grid; place-items: center; width: 36px; height: 36px; border-radius: 12px; background: rgba(99, 102, 241, .14); color: var(--primary-soft); font-weight: 800; margin-bottom: 16px; }
.steps p, .card p, .sec-item p { color: var(--muted-2); font-size: 15px; margin-top: 8px; }

.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 48px; }
@media (max-width: 960px) { .features { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .features { grid-template-columns: 1fr; } }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; transition: border-color .15s, transform .15s; }
.card:hover { border-color: rgba(99, 102, 241, .5); transform: translateY(-2px); }
.ico { width: 40px; height: 40px; padding: 8px; border-radius: 12px; background: rgba(99, 102, 241, .12); fill: none; stroke: var(--primary-soft); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; margin-bottom: 16px; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
@media (max-width: 960px) { .split { grid-template-columns: 1fr; gap: 40px; } }
.checks { list-style: none; padding: 0; margin: 28px 0 0; display: grid; gap: 12px; }
.checks li { position: relative; padding-left: 30px; color: var(--text); }
.checks li::before { content: ""; position: absolute; left: 0; top: 4px; width: 18px; height: 18px; border-radius: 6px; background: rgba(16, 185, 129, .15); border: 1px solid rgba(16, 185, 129, .45); }
.checks li::after { content: ""; position: absolute; left: 6px; top: 7px; width: 5px; height: 9px; border: solid var(--ok); border-width: 0 2px 2px 0; transform: rotate(45deg); }

.flow { display: grid; gap: 18px; justify-items: center; padding: 28px; border-radius: 22px; background: var(--surface); border: 1px solid var(--border); }
.flow-node {
  display: grid; text-align: center; padding: 12px 16px; border-radius: 14px; min-width: 150px;
  background: var(--surface-3); border: 1px solid var(--border); color: var(--text-strong); font-weight: 700; font-size: 15px;
}
.flow-node small { color: var(--muted); font-weight: 500; font-size: 12px; }
.flow-root { border-color: rgba(99, 102, 241, .6); background: rgba(99, 102, 241, .12); }
.flow-you { border-color: rgba(245, 158, 11, .5); background: rgba(245, 158, 11, .08); }
.flow-branches { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; width: 100%; position: relative; }
.flow-branches .flow-node { min-width: 0; }
@media (max-width: 560px) { .flow-branches { grid-template-columns: 1fr; } }

.security { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: 48px; background: var(--border); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
@media (max-width: 960px) { .security { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .security { grid-template-columns: 1fr; } }
.sec-item { background: var(--surface); padding: 26px; }

.cta-band {
  display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap;
  padding: 44px; border-radius: 24px;
  background: radial-gradient(120% 140% at 0% 0%, rgba(99, 102, 241, .35), transparent 60%), var(--surface);
  border: 1px solid rgba(99, 102, 241, .35);
}
.cta-band p { color: var(--muted-2); margin-top: 10px; }
.cta-band .cta-row { margin-top: 0; }
@media (max-width: 560px) { .cta-band { padding: 28px 20px; } .cta-band .btn { width: 100%; } }

/* Pied de page */
.footer { border-top: 1px solid var(--border); padding: 32px 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.footer nav { display: flex; gap: 24px; }
.footer nav a { color: var(--muted-2); font-size: 14px; }

/* Politique de confidentialité */
.legal { max-width: 760px; padding: 56px 16px 80px; margin: 0 auto; }
.legal-header { display: flex; align-items: center; gap: 16px; margin-bottom: 32px; }
.legal h1 { font-size: clamp(28px, 4vw, 36px); }
.legal h2 { font-size: 20px; margin: 32px 0 10px; }
.legal p, .legal li { color: var(--muted-2); }
.legal ul { padding-left: 20px; }
.legal li { margin: 6px 0; }
.legal strong { color: var(--text-strong); }

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .btn, .card { transition: none; } }