:root {
  --bg: #050711;
  --bg-soft: #0a0f1d;
  --card: rgba(16, 22, 38, 0.82);
  --card-strong: #11182a;
  --line: rgba(160, 185, 220, 0.16);
  --text: #f6f8ff;
  --muted: #a8b3c8;
  --cyan: #40dcff;
  --red: #ff4a55;
  --blue: #5284ff;
  --green: #38d66b;
  --max: 1160px;
  --radius: 24px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(circle at 18% -4%, rgba(57, 88, 214, 0.26), transparent 34rem),
    radial-gradient(circle at 88% 18%, rgba(22, 190, 170, 0.16), transparent 31rem),
    var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }

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

button, summary { font: inherit; }

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

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 14px;
  border-radius: 12px;
  background: white;
  color: #050711;
  transform: translateY(-160%);
}

.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--line);
  background: rgba(5, 7, 17, 0.8);
  backdrop-filter: blur(18px) saturate(140%);
}

.nav {
  min-height: 68px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: -0.02em; }
.brand img { width: 36px; height: 36px; border-radius: 9px; }

.nav-links { display: none; margin-left: auto; align-items: center; gap: 24px; }
.nav-links a { color: var(--muted); font-size: 0.94rem; }
.nav-links a:hover, .nav-links a:focus-visible { color: var(--text); }

.language { position: relative; margin-left: auto; }
.language summary {
  cursor: pointer;
  list-style: none;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 12px;
}
.language summary::-webkit-details-marker { display: none; }
.language[open] summary { color: var(--text); border-color: rgba(64, 220, 255, 0.38); }
.language-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 10px);
  min-width: 190px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #0c1120;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.42);
}
.language-menu a { display: block; padding: 9px 11px; border-radius: 10px; color: var(--muted); }
.language-menu a:hover, .language-menu a:focus-visible { background: rgba(255,255,255,0.06); color: var(--text); }

.header-cta { display: none; }

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: 14px;
  background: linear-gradient(135deg, #f5f7ff 0%, #bfeeff 100%);
  color: #07101d;
  font-weight: 800;
  box-shadow: 0 12px 40px rgba(64, 220, 255, 0.16);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.button:hover, .button:focus-visible { transform: translateY(-2px); box-shadow: 0 16px 46px rgba(64, 220, 255, 0.24); }
.button.secondary { background: transparent; border-color: var(--line); color: var(--text); box-shadow: none; }
.button.small { min-height: 40px; padding: 9px 15px; border-radius: 12px; font-size: 0.9rem; }

.hero {
  min-height: min(760px, calc(100dvh - 68px));
  display: grid;
  align-items: center;
  gap: 38px;
  padding-block: clamp(40px, 6vw, 68px);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  color: #c4f6ff;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}
.eyebrow::before { content: ""; width: 24px; height: 1px; background: var(--cyan); box-shadow: 0 0 16px var(--cyan); }

h1, h2, h3 { margin: 0; line-height: 1.08; letter-spacing: -0.035em; }
h1 { max-width: 12ch; font-size: clamp(3rem, 8.5vw, 6.8rem); }
h2 { font-size: clamp(2.1rem, 5.2vw, 4.4rem); }
h3 { font-size: 1.25rem; }

.gradient-text {
  color: transparent;
  background: linear-gradient(100deg, #ffffff 10%, #6fe6ff 50%, #ff6c75 92%);
  -webkit-background-clip: text;
  background-clip: text;
}

.lead { max-width: 61ch; margin: 24px 0 0; color: var(--muted); font-size: clamp(1.05rem, 2vw, 1.24rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 10px 18px; margin-top: 22px; color: #7f8ba3; font-size: 0.88rem; }
.hero-meta span::before { content: "✓"; margin-right: 6px; color: var(--green); }

.hero-visual {
  position: relative;
  width: fit-content;
  max-width: 100%;
  margin-inline: auto;
}
.hero-visual::before {
  content: "";
  position: absolute;
  inset: 10% -12% 6%;
  z-index: -1;
  border-radius: 45%;
  background: conic-gradient(from 90deg, rgba(255,74,85,0.3), rgba(64,220,255,0.26), rgba(82,132,255,0.3), rgba(255,74,85,0.3));
  filter: blur(64px);
}
.hero-visual img {
  width: auto;
  height: auto;
  max-width: min(420px, 100%);
  max-height: min(760px, 78dvh);
  margin-inline: auto;
  border-radius: 26px;
  object-fit: contain;
  filter: drop-shadow(0 28px 54px rgba(0,0,0,0.48));
}
.floating-note {
  position: absolute;
  right: -8px;
  bottom: 9%;
  width: min(220px, 54%);
  padding: 13px 15px;
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 16px;
  background: rgba(12, 18, 31, 0.82);
  box-shadow: 0 18px 48px rgba(0,0,0,0.38);
  backdrop-filter: blur(18px);
  font-size: 0.84rem;
  color: var(--muted);
}
.floating-note strong { display: block; color: var(--text); font-size: 0.95rem; }

section { padding-block: clamp(44px, 6vw, 80px); }
main > section + section { padding-top: clamp(16px, 2.5vw, 32px); }
.section-head { display: grid; gap: 18px; margin-bottom: 34px; }
.section-head p { max-width: 64ch; margin: 0; color: var(--muted); font-size: 1.08rem; }

.trust-strip {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  padding: 1px;
  border: 1px solid var(--line);
  border-radius: 20px;
  overflow: hidden;
  background: var(--line);
}
.trust-item { padding: 20px; background: var(--bg-soft); }
.trust-item strong { display: block; font-size: 1.4rem; }
.trust-item span { color: var(--muted); font-size: 0.88rem; }

.feature-grid { display: grid; gap: 16px; }
.feature-card {
  min-height: 210px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(18,25,44,0.9), rgba(8,12,23,0.92));
}
.feature-icon {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  margin-bottom: 38px;
  border: 1px solid rgba(64,220,255,0.25);
  border-radius: 14px;
  background: rgba(64,220,255,0.08);
  color: var(--cyan);
  font-size: 1.15rem;
  font-weight: 800;
}
.feature-card:nth-child(2n) .feature-icon { border-color: rgba(255,74,85,0.26); background: rgba(255,74,85,0.08); color: #ff7b84; }
.feature-card p { margin: 10px 0 0; color: var(--muted); }

.showcase { overflow: hidden; }
.screens {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(235px, 29%);
  gap: 18px;
  overflow-x: auto;
  padding: 8px max(20px, calc((100vw - var(--max)) / 2)) 24px;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
  scrollbar-color: #2c3852 transparent;
}
.screen { margin: 0; scroll-snap-align: start; }
.screen img { width: 100%; height: auto; border: 1px solid var(--line); border-radius: 24px; object-fit: contain; box-shadow: 0 28px 60px rgba(0,0,0,0.35); }
.screen figcaption { margin-top: 12px; color: var(--muted); font-size: 0.88rem; text-align: center; }

.modes { display: grid; gap: 20px; }
.mode {
  position: relative;
  min-height: 300px;
  overflow: hidden;
  padding: clamp(24px, 4vw, 42px);
  border: 1px solid var(--line);
  border-radius: 30px;
  background: radial-gradient(circle at 100% 100%, rgba(64,220,255,0.18), transparent 42%), #0b1020;
  background-clip: padding-box;
}
.mode:nth-child(2) { background: radial-gradient(circle at 100% 100%, rgba(255,74,85,0.18), transparent 42%), #0b1020; }
.mode p { max-width: 44ch; margin: 16px 0 0; color: var(--muted); }
.mode-list { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 22px; }
.mode-list span { padding: 7px 11px; border: 1px solid var(--line); border-radius: 999px; color: #cbd4e6; font-size: 0.83rem; }

.video-layout { display: grid; align-items: center; gap: 32px; }
.video-card { width: min(100%, 320px); margin-inline: auto; overflow: hidden; border: 1px solid var(--line); border-radius: 26px; background: #000; }
.video-trigger { position: relative; display: block; width: 100%; aspect-ratio: 9 / 16; padding: 0; border: 0; background: #000; cursor: pointer; }
.video-trigger img { width: 100%; height: 100%; object-fit: cover; opacity: 0.78; }
.play {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 62px;
  height: 62px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255,255,255,0.34);
  border-radius: 50%;
  background: rgba(5,7,17,0.8);
  color: white;
  transform: translate(-50%, -50%);
  font-size: 1.2rem;
}
.video-stage { position: relative; aspect-ratio: 9 / 16; overflow: hidden; background: #000; }
.video-stage iframe { position: absolute; top: 0; left: 50%; width: 316%; height: 100%; border: 0; transform: translateX(-50%); }
.video-copy p { max-width: 54ch; color: var(--muted); }
.video-label { display: inline-flex; margin-top: 12px; padding: 7px 11px; border: 1px solid var(--line); border-radius: 999px; color: #cbd4e6; font-size: 0.84rem; }

.faq-list { max-width: 900px; }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { cursor: pointer; list-style: none; padding: 22px 2px; font-weight: 750; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; float: right; color: var(--cyan); font-size: 1.3rem; }
.faq-list details[open] summary::after { content: "–"; }
.faq-list p { max-width: 74ch; margin: -5px 0 24px; color: var(--muted); }

.safety { padding-top: 0; }
.notice { padding: 22px 24px; border: 1px solid rgba(255, 187, 74, 0.28); border-radius: 18px; background: rgba(255, 187, 74, 0.06); color: #e8d7b7; }
.notice strong { color: #ffcb75; }

.cta-band {
  position: relative;
  overflow: hidden;
  padding: clamp(38px, 8vw, 84px);
  border: 1px solid rgba(64,220,255,0.24);
  border-radius: 32px;
  background: linear-gradient(145deg, rgba(39,66,132,0.34), rgba(14,29,40,0.78));
  text-align: center;
}
.cta-band::before { content: ""; position: absolute; inset: auto 10% -70% 10%; height: 180%; border-radius: 50%; background: rgba(64,220,255,0.12); filter: blur(70px); }
.cta-band > * { position: relative; }
.cta-band p { max-width: 54ch; margin: 16px auto 28px; color: var(--muted); }

footer { margin-top: 96px; padding: 36px 0 46px; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.88rem; }
.footer-top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px 24px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 16px; }
.footer-links a:hover, .footer-links a:focus-visible { color: var(--text); }
.copyright { margin: 20px 0 0; color: #758198; }

@media (min-width: 700px) {
  .trust-strip { grid-template-columns: repeat(4, 1fr); }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .modes { grid-template-columns: repeat(2, 1fr); }
  .video-layout { grid-template-columns: minmax(260px, 0.7fr) 1.3fr; }
}

@media (min-width: 900px) {
  .nav-links { display: flex; }
  .language { margin-left: 0; }
  .header-cta { display: inline-flex; }
  .hero { grid-template-columns: 1.08fr 0.92fr; }
  .feature-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 520px) {
  .wrap { width: min(calc(100% - 28px), var(--max)); }
  .brand span { display: none; }
  .screens { grid-auto-columns: minmax(220px, 76%); }
  .floating-note { right: -4px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}