:root {
  --violet: #9d6cff;
  --green: #2bec9c;
}

body {
  background-color: #03070d;
  background-image:
    radial-gradient(circle at 88% 9%, rgba(22, 217, 255, .12), transparent 26%),
    radial-gradient(circle at 8% 48%, rgba(157, 108, 255, .08), transparent 24%);
}

.nav { background: rgba(3, 7, 13, .9); }
.nav-cta { background: #fff; color: #1f1f1f; border: 1px solid #747775; }
.nav-cta:hover { background: #f2f2f2; transform: translateY(-1px); }

.launch-chip {
  display: inline-flex;
  margin-bottom: 12px;
  padding: 7px 11px;
  border: 1px solid rgba(43, 236, 156, .35);
  background: rgba(43, 236, 156, .08);
  color: var(--green);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .13em;
}

.hero-copy h1 { text-wrap: balance; }
.button, .plan button, .download-box button { transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.button:hover, .plan button:hover { transform: translateY(-2px); }
.cap { overflow: hidden; transition: transform .25s ease, background .25s ease; }
.cap::after { content: ""; position: absolute; width: 130px; height: 130px; right: -65px; bottom: -65px; border: 1px solid rgba(22,217,255,.18); transform: rotate(45deg); }
.cap:hover { z-index: 2; transform: translateY(-4px); background: #102131; }

.language-strip {
  padding: 36px 6vw;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(90deg, #07111b, #101428 48%, #07111b);
  text-align: center;
}
.language-strip div { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 18px; }
.language-strip b { color: var(--cyan); margin-right: 8px; }
.language-strip span { color: #d8e4ec; font-weight: 700; }
.language-strip p { margin: 12px 0 0; color: var(--muted); font-size: 12px; }

.plans { align-items: stretch; }
.plan { transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease; }
.plan:hover { transform: translateY(-8px); border-color: #41617a; box-shadow: 0 26px 65px rgba(0,0,0,.32); }
.plan.featured { background: linear-gradient(160deg, #102637, #0b1420 45%); }

.install-journey, .trust-panel, .feedback, .faq { padding: 110px 6vw; }
.install-journey { border-top: 1px solid var(--line); }
.journey-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: 48px; background: var(--line); }
.journey-grid article { min-height: 260px; padding: 30px; background: #09131e; position: relative; }
.journey-grid article > b { color: #53697a; font-size: 11px; }
.journey-grid article > span { display: block; margin: 35px 0 20px; color: var(--cyan); font-size: 32px; }
.journey-grid h3 { font-size: 24px; margin: 0 0 10px; }
.journey-grid p { color: var(--muted); line-height: 1.7; }

.trust-panel {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  align-items: center;
  gap: 8vw;
  background: linear-gradient(135deg, #0d1723, #071019);
  border-block: 1px solid var(--line);
}
.trust-points { display: grid; gap: 1px; background: var(--line); }
.trust-points article { display: flex; gap: 18px; padding: 24px; background: #0a1520; }
.trust-points article > span { font-size: 27px; }
.trust-points b { font-size: 17px; }
.trust-points p { color: var(--muted); margin: 6px 0 0; line-height: 1.55; }

.feedback { border-bottom: 1px solid var(--line); background: linear-gradient(145deg,#071019,#0b1825); }
.feedback-note { max-width: 680px; color: var(--muted); line-height: 1.6; }
.feedback-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 45px; }
.feedback-form,.feedback-results { padding: 28px; background: #091522; border: 1px solid #203749; border-radius: 18px; }
.feedback-form { display: grid; gap: 12px; }
.feedback-form label { margin-top: 6px; color: #dbe9f2; font-weight: 700; }
.feedback-form label span { color: var(--muted); font-weight: 500; }
.feedback-form input:not([type="range"]),.feedback-form textarea { width: 100%; border: 1px solid #29465c; border-radius: 12px; background: #050d16; color: #f4f8fb; padding: 14px; font: inherit; }
.feedback-form textarea { min-height: 135px; resize: vertical; }
.feedback-form input[type="range"] { accent-color: var(--cyan); width: 100%; }
.feedback-form button { margin-top: 8px; border: 0; border-radius: 12px; padding: 14px; background: var(--cyan); color: #031019; font-weight: 850; cursor: pointer; }
.feedback-success { color: #4dffad; margin: 5px 0 0; }
.feedback-score { display: flex; align-items: baseline; gap: 4px; padding-bottom: 22px; border-bottom: 1px solid var(--line); }
.feedback-score strong { color: var(--gold); font-size: 54px; }.feedback-score span { font-size: 22px; }.feedback-score small { margin-left: auto; color: var(--muted); }
.feedback-list { display: grid; gap: 10px; margin-top: 20px; }.feedback-item { padding: 15px; border-radius: 12px; background: #0d1d2b; }.feedback-item b { color: var(--gold); }.feedback-item p { color: #c7d6e1; line-height: 1.5; margin: 8px 0 0; }.feedback-item small,.empty-feedback { color: var(--muted); }

.faq { display: grid; grid-template-columns: .8fr 1.2fr; gap: 7vw; }
.faq-list { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { display: flex; justify-content: space-between; gap: 20px; padding: 23px 4px; cursor: pointer; font-weight: 750; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary span { color: var(--cyan); font-size: 20px; transition: transform .2s ease; }
.faq details[open] summary span { transform: rotate(45deg); }
.faq details p { margin: -6px 45px 22px 4px; color: var(--muted); line-height: 1.7; }

.platform-downloads { display: grid; gap: 10px; }
.platform-downloads article { display: grid; grid-template-columns: 48px 1fr auto; align-items: center; gap: 14px; padding: 18px; background: #0b1420; border: 1px solid #203344; }
.platform-downloads article.ready { border-color: #1c6855; background: linear-gradient(90deg,#0b171a,#0b1420); }
.platform-downloads .os { color: #16d9ff; font-size: 28px; text-align: center; }
.platform-downloads div { display: grid; gap: 4px; }
.platform-downloads small { color: #8ea0af; }
.platform-downloads a,.platform-downloads button { padding: 11px 14px; border: 1px solid #36536a; background: transparent; color: #f4f8fb; font-weight: 750; text-align: center; }
.platform-downloads .ready a { background: #16d9ff; border-color: #16d9ff; color: #031019; }
.platform-downloads .coming-soon { color: #738695; cursor: not-allowed; }

@media (prefers-reduced-motion: no-preference) {
  .signal-card i { animation: statusPulse 2s ease-in-out infinite; }
  @keyframes statusPulse { 50% { box-shadow: 0 0 24px #24f09d; opacity: .7; } }
}

@media (max-width: 900px) {
  .journey-grid { grid-template-columns: 1fr; }
  .journey-grid article { min-height: auto; }
  .trust-panel, .faq, .feedback-layout { grid-template-columns: 1fr; }
}

@media (max-width: 700px) {
  .language-strip { padding-inline: 22px; }
  .language-strip div { gap: 11px; }
  .install-journey, .trust-panel, .feedback, .faq { padding: 78px 22px; }
  .platform-downloads article { grid-template-columns: 40px 1fr; }
  .platform-downloads a,.platform-downloads button { grid-column: 1 / -1; width: 100%; }
}

/* === INSTALL ZONE — bloc gros boutons en page d'accueil === */
.install-zone {
  background: linear-gradient(180deg, #050a13 0%, #0a1622 100%);
  padding: 70px 6vw 80px;
  border-block: 1px solid var(--line);
}
.install-zone-inner { max-width: 1100px; margin: 0 auto; }
.install-zone h2 {
  font-family: "Arial Narrow","Segoe UI",sans-serif;
  text-transform: uppercase;
  letter-spacing: -0.045em;
  font-size: clamp(36px,4.5vw,58px);
  margin: 0 0 8px;
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
}
.install-zone h2 em {
  font-style: normal;
  color: transparent;
  -webkit-text-stroke: 1px var(--cyan);
}
.badge-beta {
  background: var(--gold);
  color: #1a1408;
  font-size: 13px; font-weight: 700;
  padding: 4px 11px;
  border-radius: 999px;
  letter-spacing: 0.4px;
  text-transform: none;
  display: inline-block;
  white-space: nowrap;
}
.install-zone-sub {
  color: #8ea0af;
  font-size: 16px;
  margin: 0 0 30px;
  max-width: 720px;
}
.install-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.install-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 22px 20px;
  background: linear-gradient(145deg,#0f1c2a,#0a1320);
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--white);
  text-decoration: none;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
  position: relative;
  min-height: 130px;
}
.install-card:hover {
  transform: translateY(-2px);
  border-color: var(--cyan);
  box-shadow: 0 0 36px rgba(22, 217, 255, 0.18);
}
.install-card .install-icon {
  font-size: 36px;
  color: var(--cyan);
  line-height: 1;
}
.install-card .install-text { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.install-card .install-text b {
  font-size: 16px;
  color: var(--white);
}
.install-card .install-text span {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.4;
}
.install-card .install-cta {
  display: inline-block;
  margin-top: 6px;
  font-size: 12px;
  font-weight: 800;
  color: var(--cyan);
  letter-spacing: 0.06em;
}
.install-note {
  color: #6f8291;
  font-size: 12px;
  margin: 20px 0 0;
  letter-spacing: 0.05em;
}
.button.big {
  padding: 20px 30px;
  font-size: 18px;
}
@media (max-width: 900px) {
  .install-grid { grid-template-columns: repeat(2, 1fr); }
  .install-zone { padding: 60px 5vw 70px; }
}
@media (max-width: 600px) {
  .install-grid { grid-template-columns: 1fr; }
  .install-card { min-height: auto; padding: 18px; }
  .install-zone h2 { flex-direction: column; align-items: flex-start; gap: 8px; }
}