/* Page publique WhiteboardTV. Theme sombre verrouille : c'est l'apparence du produit a l'ecran. */
:root {
  --bg: #0b0d10;
  --bg-2: #111419;
  --surface: #171b21;
  --line: #262b33;
  --ink: #f4f1ea;
  --ink-2: #b4b8bf;
  --ink-3: #868b94;
  --accent: #ffb020;
  --accent-ink: #14110a;
  --radius: 14px;
  --display: "Bebas Neue", Impact, sans-serif;
  --text: "Barlow", system-ui, sans-serif;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 18px/1.55 var(--text); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3 { margin: 0; font-weight: 400; }
h1, h2 { font-family: var(--display); letter-spacing: .015em; line-height: .98; }
h1 { font-size: clamp(3.2rem, 7vw, 5.6rem); }
h2 { font-size: clamp(2.4rem, 4.6vw, 3.6rem); }
h3 { font-size: 1.15rem; font-weight: 700; line-height: 1.25; }
p { margin: 0; }
.wrap { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 24px; }
.muted { color: var(--ink-2); }
.small { font-size: .9rem; }

/* Boutons : un seul rayon pour tout ce qui est interactif (pilule) */
.btn {
  display: inline-flex; align-items: center; justify-content: center; white-space: nowrap;
  min-height: 46px; padding: 0 22px; border-radius: 999px; border: 1px solid transparent;
  font-weight: 700; font-size: 1rem; text-decoration: none; cursor: pointer;
  transition: transform .2s cubic-bezier(.16, 1, .3, 1), background .2s, border-color .2s;
}
.btn:active { transform: scale(.98); }
.btn:focus-visible, a:focus-visible, button:focus-visible, summary:focus-visible, input:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.btn-accent { background: var(--accent); color: var(--accent-ink); }
.btn-accent:hover { background: #ffc04d; transform: translateY(-1px); }
.btn-ghost { border-color: #3a4049; color: var(--ink); }
.btn-ghost:hover { border-color: var(--ink-2); }
.btn-lg { min-height: 56px; padding: 0 28px; font-size: 1.05rem; }

/* Navigation */
.nav { position: sticky; top: 0; z-index: 10; background: rgba(11, 13, 16, .86); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(38, 43, 51, .7); }
.nav-inner { height: 68px; display: flex; align-items: center; gap: 32px; }
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--display); font-size: 1.7rem; letter-spacing: .03em; text-decoration: none; line-height: 1; }
.nav-links { display: flex; gap: 26px; margin-left: 12px; }
.nav-links a, .link-login { text-decoration: none; color: var(--ink-2); font-weight: 600; font-size: .95rem; }
.nav-links a:hover, .link-login:hover { color: var(--ink); }
.nav-actions { margin-left: auto; display: flex; align-items: center; gap: 18px; }
.nav-actions .btn { min-height: 42px; padding: 0 18px; font-size: .95rem; }
.lang { background: none; border: 1px solid var(--line); color: var(--ink-2); border-radius: 999px; min-height: 34px; padding: 0 12px; font: 700 .8rem var(--text); letter-spacing: .08em; cursor: pointer; }
.lang:hover { color: var(--ink); border-color: var(--ink-3); }

/* Hero */
.hero { padding: 72px 0 96px; }
.hero-grid { display: grid; grid-template-columns: 5fr 7fr; gap: 56px; align-items: center; }
.hero-copy { display: flex; flex-direction: column; gap: 22px; }
.lead { font-size: 1.25rem; color: var(--ink-2); max-width: 30ch; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 6px; }
.tv {
  margin: 0; padding: 12px 12px 14px; border-radius: 18px; background: #050607;
  border: 1px solid #2a2f37; box-shadow: 0 30px 80px rgba(0, 0, 0, .55), 0 0 0 1px rgba(255, 176, 32, .04);
}
.tv img { border-radius: 6px; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }

/* Calculateur */
.calc { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 96px 0; }
.calc-grid { display: grid; grid-template-columns: 7fr 5fr; gap: 72px; align-items: center; }
.calc-inputs { display: flex; flex-direction: column; gap: 22px; }
.calc-inputs > .muted { max-width: 52ch; }
.field label { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; font-weight: 600; margin-bottom: 10px; }
.field output { font-family: var(--display); font-size: 1.9rem; color: var(--accent); line-height: 1; min-width: 3ch; text-align: right; }
input[type="range"] { width: 100%; accent-color: var(--accent); height: 28px; cursor: pointer; }
.calc-result { display: flex; flex-direction: column; gap: 26px; padding-left: 48px; border-left: 1px solid var(--line); }
.big { display: flex; flex-direction: column; }
.big span { font-family: var(--display); font-size: clamp(3.6rem, 7vw, 5.4rem); line-height: .9; font-variant-numeric: tabular-nums; }
.big small { color: var(--ink-2); font-weight: 600; font-size: 1rem; margin-top: 6px; }
.big.accent span { color: var(--accent); }
.net { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; padding: 16px 20px; border-radius: var(--radius); background: var(--surface); font-weight: 600; }
.net strong { font-family: var(--display); font-weight: 400; font-size: 2rem; color: var(--ink); line-height: 1; }

/* Mise en place */
.how { padding: 112px 0; }
.how-grid { display: grid; grid-template-columns: 6fr 6fr; gap: 64px; align-items: center; }
.steps { list-style: none; margin: 36px 0 0; padding: 0; display: flex; flex-direction: column; gap: 28px; }
.steps li { display: grid; grid-template-columns: 52px 1fr; gap: 18px; align-items: start; }
.steps i { width: 52px; height: 52px; display: grid; place-items: center; border-radius: 50%; background: var(--surface); color: var(--accent); font-size: 1.5rem; border: 1px solid var(--line); }
.steps strong { display: block; font-size: 1.15rem; margin-bottom: 4px; }
.steps p { color: var(--ink-2); max-width: 46ch; }
.tv-tilt { transform: rotate(-1.2deg); }

/* Bento des fonctionnalites */
.features { padding: 24px 0 112px; }
.features h2 { max-width: 16ch; margin-bottom: 40px; }
.bento { display: grid; grid-template-columns: repeat(6, 1fr); grid-auto-rows: minmax(220px, auto); gap: 16px; }
.cell { border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); padding: 28px; display: flex; flex-direction: column; gap: 10px; overflow: hidden; }
.cell i { font-size: 2rem; color: var(--accent); margin-bottom: 6px; }
.cell p { color: var(--ink-2); font-size: 1rem; }
.cell-import { grid-column: span 2; grid-row: span 2; background: var(--accent); color: var(--accent-ink); border-color: var(--accent); justify-content: flex-end; }
.cell-import i { color: var(--accent-ink); font-size: 2.6rem; }
.cell-import h3 { font-family: var(--display); font-weight: 400; font-size: 2.6rem; line-height: .95; letter-spacing: .02em; }
.cell-import p { color: #3d3016; font-size: 1.05rem; font-weight: 500; }
.cell-brand { grid-column: span 4; padding: 0; display: grid; grid-template-columns: 1.25fr 1fr; gap: 0; }
.cell-brand img { height: 100%; width: 100%; object-fit: cover; }
.cell-brand .cell-text { padding: 28px; display: flex; flex-direction: column; justify-content: center; gap: 10px; }
.cell-timer, .cell-board { grid-column: span 2; }
.cell-board { background: linear-gradient(160deg, #1d2128 0%, #171b21 60%); }
.cell-team { grid-column: span 6; flex-direction: row; align-items: center; gap: 24px; }
.cell-team i { margin: 0; }
.cell-team p { max-width: 70ch; }
.compat { margin-top: 28px; color: var(--ink-3); font-size: 1rem; max-width: 70ch; }

/* Tarif */
.pricing { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 104px 0; }
.pricing-grid { display: grid; grid-template-columns: 7fr 5fr; gap: 64px; align-items: center; }
.price { display: flex; flex-direction: column; gap: 18px; align-items: flex-start; }
.amount { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; }
.amount span { font-family: var(--display); font-size: clamp(5rem, 10vw, 7.5rem); line-height: .85; color: var(--accent); }
.amount small { font-size: 1.1rem; color: var(--ink-2); font-weight: 600; }
.included { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 18px 28px; }
.included li { display: flex; gap: 10px; align-items: flex-start; font-weight: 600; }
.included i { color: var(--accent); font-size: 1.3rem; margin-top: 2px; }

/* Questions */
.faq { padding: 104px 0; }
.faq-wrap { display: grid; grid-template-columns: 4fr 8fr; gap: 56px; align-items: start; }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list details:first-child { border-top: 1px solid var(--line); }
.faq-list summary { cursor: pointer; list-style: none; padding: 22px 40px 22px 0; font-weight: 700; font-size: 1.1rem; position: relative; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: ""; position: absolute; right: 6px; top: 50%; width: 10px; height: 10px; border-right: 2px solid var(--ink-2); border-bottom: 2px solid var(--ink-2); transform: translateY(-70%) rotate(45deg); transition: transform .25s cubic-bezier(.16, 1, .3, 1); }
.faq-list details[open] summary::after { transform: translateY(-30%) rotate(-135deg); }
.faq-list details p { padding: 0 40px 24px 0; color: var(--ink-2); max-width: 62ch; }

/* Appel final */
.final { padding: 88px 0 112px; }
.final-inner { display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; padding: 56px; border-radius: 20px; background: var(--surface); border: 1px solid var(--line); }
.final h2 { font-size: clamp(2.8rem, 6vw, 4.6rem); }

.foot { border-top: 1px solid var(--line); padding: 28px 0 40px; }
.foot-inner { display: flex; align-items: center; gap: 24px; color: var(--ink-3); font-size: .95rem; }
.foot-inner a { text-decoration: none; }
.foot-inner a:hover { color: var(--ink); }
.small-brand { font-size: 1.3rem; color: var(--ink-2); margin-right: auto; }

/* Apparition au defilement (hierarchie de lecture), desactivee si mouvement reduit */
@media (prefers-reduced-motion: no-preference) {
  .reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s cubic-bezier(.16, 1, .3, 1), transform .7s cubic-bezier(.16, 1, .3, 1); }
  .reveal.in { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .tv-tilt { transform: none; }
}

/* Tablette */
@media (max-width: 1023px) {
  .nav-links { display: none; }
  .hero-grid, .calc-grid, .how-grid, .pricing-grid, .faq-wrap { grid-template-columns: 1fr; gap: 40px; }
  .calc-result { padding-left: 0; border-left: 0; border-top: 1px solid var(--line); padding-top: 32px; }
  .bento { grid-template-columns: repeat(2, 1fr); }
  .cell-import { grid-column: span 2; grid-row: span 1; min-height: 260px; }
  .cell-brand { grid-column: span 2; }
  .cell-timer, .cell-board { grid-column: span 1; }
  .cell-team { grid-column: span 2; }
}

/* Telephone */
@media (max-width: 640px) {
  body { font-size: 17px; }
  .wrap { padding: 0 16px; }
  .nav-inner { gap: 12px; }
  .nav-actions .btn { display: none; }
  .brand { font-size: 1.45rem; }
  .brand img { width: 26px; height: 26px; }
  .hero { padding: 40px 0 64px; }
  .hero-ctas .btn { flex: 1; }
  .calc, .how, .pricing, .faq { padding: 72px 0; }
  .bento { grid-template-columns: 1fr; }
  .cell-import, .cell-brand, .cell-timer, .cell-board, .cell-team { grid-column: span 1; }
  .cell-brand { grid-template-columns: 1fr; }
  .cell-team { flex-direction: column; align-items: flex-start; }
  .included { grid-template-columns: 1fr; }
  .final-inner { padding: 32px 24px; }
  .final-inner .btn { width: 100%; }
  .tv-tilt { transform: none; }
}