/* CamWifi — page de présentation */
:root {
  --paper: #f3f5f2;
  --ink: #1b1f2a;
  --muted: #5c6372;
  --line: #d9dde3;
  --signal: #2f5bff;
  --signal-deep: #1e3fd1;
  --amber: #ffb020;
  --wrap: 1120px;
  --font: "Bricolage Grotesque", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  font-size: 18px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { margin: 0; font-weight: 800; letter-spacing: -0.02em; line-height: 1.05; }
p { margin: 0; }

a { color: inherit; }

:focus-visible { outline: 3px solid var(--signal); outline-offset: 3px; border-radius: 6px; }

kbd {
  font-family: var(--font);
  font-size: .85em;
  font-weight: 700;
  background: #fff;
  border: 1px solid var(--line);
  border-bottom-width: 3px;
  border-radius: 6px;
  padding: 0 7px;
}

/* ---------- En-tête ---------- */
.top {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 22px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { font-weight: 800; font-size: 22px; text-decoration: none; letter-spacing: -0.02em; }
.top-link { font-weight: 600; text-decoration: none; border-bottom: 2px solid var(--signal); padding-bottom: 2px; }
.top-link:hover { color: var(--signal); }

/* ---------- Boutons ---------- */
.btn {
  display: inline-block;
  background: var(--signal);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  padding: 16px 26px;
  border-radius: 999px;
  transition: background .15s;
}
.btn:hover { background: var(--signal-deep); }
.btn-quiet { font-weight: 600; text-decoration: none; padding: 16px 6px; }
.btn-quiet:hover { color: var(--signal); }

/* ---------- Hero ---------- */
.hero {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 40px 24px 96px;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: center;
}
.hero h1 { font-size: clamp(44px, 6vw, 80px); max-width: 13ch; }
.lead { margin-top: 26px; font-size: 20px; color: var(--muted); max-width: 46ch; }
.actions { margin-top: 34px; display: flex; flex-wrap: wrap; gap: 10px 18px; align-items: center; }

.scene { margin: 0; }
.scene svg { width: 100%; height: auto; display: block; overflow: visible; }

/* Animation unique au chargement : les ondes partent du téléphone, puis l'image apparaît sur le PC. */
.waves path { opacity: 0; animation: wave 0.5s ease-out forwards; }
.waves .w1 { animation-delay: .35s; }
.waves .w2 { animation-delay: .6s; }
.waves .w3 { animation-delay: .85s; }
@keyframes wave { from { opacity: 0; transform: translate(-6px, 6px); } to { opacity: 1; transform: none; } }

.laptop-feed { opacity: 0; animation: feed .6s ease-out 1.25s forwards; }
@keyframes feed { to { opacity: 1; } }

.live-dot { animation: blink 1.4s ease-in-out 2s infinite; }
@keyframes blink { 50% { opacity: .25; } }

.torch { filter: drop-shadow(0 0 6px var(--amber)); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .waves path, .laptop-feed { animation: none; opacity: 1; }
  .live-dot { animation: none; }
}

/* ---------- Étapes ---------- */
.steps {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px 110px;
}
.steps h2, .controls h2, .faq h2, .final h2 { font-size: clamp(32px, 4vw, 48px); max-width: 18ch; }

.steps ol {
  list-style: none;
  counter-reset: step;
  margin: 48px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 36px;
}
.steps li {
  counter-increment: step;
  border-top: 3px solid var(--ink);
  padding-top: 18px;
}
.steps li::before {
  content: counter(step);
  display: block;
  font-size: 64px;
  font-weight: 800;
  line-height: 1;
  color: var(--signal);
  margin-bottom: 14px;
}
.steps h3 { font-size: 23px; line-height: 1.2; margin-bottom: 10px; }
.steps p { color: var(--muted); max-width: 34ch; }

/* ---------- Commandes ---------- */
.controls {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px 110px;
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 48px;
}
.controls-head p { margin-top: 16px; color: var(--muted); max-width: 32ch; }

.control-list { margin: 0; }
.control-list div {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
.control-list div:first-child { border-top: 1px solid var(--line); }
.control-list dt { font-weight: 700; }
.control-list dd { margin: 0; color: var(--muted); }

/* ---------- Vie privée ---------- */
.private { background: var(--signal); color: #fff; }
.private-inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 96px 24px;
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  column-gap: 48px;
  row-gap: 20px;
}
.private h2 { font-size: clamp(36px, 5vw, 64px); grid-row: span 2; max-width: 9ch; }
.private p { font-size: 19px; max-width: 58ch; color: #e6ecff; }

/* ---------- FAQ ---------- */
.faq {
  max-width: 820px;
  margin: 0 auto;
  padding: 110px 24px 90px;
}
.faq h2 { margin-bottom: 30px; }
.faq details { border-bottom: 1px solid var(--line); }
.faq details:first-of-type { border-top: 1px solid var(--line); }
.faq summary {
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  font-size: 20px;
  padding: 20px 40px 20px 0;
  position: relative;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 28px;
  font-weight: 500;
  color: var(--signal);
  transition: transform .2s;
}
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq details p { padding: 0 0 22px; color: var(--muted); max-width: 64ch; }

/* ---------- Appel final ---------- */
.final {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 40px 24px 110px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

/* ---------- Pied de page ---------- */
.foot {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 26px 24px 40px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: var(--muted);
  font-size: 15px;
}
.foot span:first-child { font-weight: 800; color: var(--ink); }

/* ---------- Mobile ---------- */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; gap: 36px; padding-bottom: 72px; }
  .hero h1 { max-width: 13ch; }
  .steps ol { grid-template-columns: 1fr; gap: 30px; }
  .controls, .private-inner { grid-template-columns: 1fr; gap: 24px; }
  .private h2 { grid-row: auto; }
  .control-list div { grid-template-columns: 1fr; gap: 4px; }
}

@media (max-width: 480px) {
  body { font-size: 17px; }
  .top, .hero, .steps, .controls, .private-inner, .faq, .final, .foot { padding-left: 16px; padding-right: 16px; }
  .lead { font-size: 18px; }
  .btn { width: 100%; text-align: center; }
  .foot { flex-direction: column; }
}

/* Lien dans les réponses de la FAQ */
.faq details p a { color: var(--signal); font-weight: 600; }
.final .actions { margin-top: 0; }