:root {
  --bg: #07111f;
  --panel: rgba(8, 18, 33, 0.76);
  --panel-strong: rgba(10, 24, 43, 0.88);
  --line: rgba(148, 163, 184, 0.18);
  --text: #f5f7fb;
  --muted: rgba(226, 232, 240, 0.76);
  --accent: #5dd6ff;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.34);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, Roboto, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 15% 20%, rgba(14, 165, 233, 0.24), transparent 24rem),
    radial-gradient(circle at 85% 15%, rgba(255, 179, 71, 0.22), transparent 18rem),
    linear-gradient(160deg, #030915 0%, #091525 42%, #0e1b31 100%);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}
body::before,
body::after { content: ""; position: fixed; inset: 0; pointer-events: none; }
body::before {
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 84px 84px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.42), transparent 88%);
}
body::after { background: linear-gradient(180deg, rgba(0, 0, 0, 0.18), transparent 20%, rgba(0, 0, 0, 0.42)); }
a { color: inherit; text-decoration: none; }

.landing-shell { width: min(1240px, calc(100% - 40px)); margin: 0 auto; position: relative; }
.landing-nav { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-top: 22px; }
.landing-brand { display: inline-flex; align-items: center; gap: 14px; }
.landing-brand img { width: 54px; height: 54px; border-radius: 18px; box-shadow: 0 18px 40px rgba(13, 165, 233, 0.24); background: rgba(255, 255, 255, 0.08); }
.landing-brand small { display: block; font-size: 0.72rem; letter-spacing: 0.22em; text-transform: uppercase; color: rgba(148, 225, 255, 0.9); }
.landing-brand strong { display: block; margin-top: 4px; font-size: 1.05rem; }
.landing-nav-links { display: flex; gap: 12px; flex-wrap: wrap; }
.landing-nav-links a { padding: 12px 18px; border-radius: 999px; border: 1px solid var(--line); background: rgba(255, 255, 255, 0.04); color: var(--muted); backdrop-filter: blur(14px); }

.hero { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr); gap: 44px; align-items: center; min-height: calc(100svh - 84px); padding: 36px 0 52px; }
.eyebrow { color: rgba(93, 214, 255, 0.92); font-size: 0.92rem; letter-spacing: 0.2em; text-transform: uppercase; margin: 0; }
.hero h1 { margin: 14px 0 0; font-size: clamp(3rem, 6vw, 5.4rem); line-height: 0.95; letter-spacing: -0.06em; }
.body-copy { margin: 22px 0 0; max-width: 640px; font-size: clamp(1rem, 1.8vw, 1.2rem); line-height: 1.72; color: var(--muted); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 34px; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 58px; padding: 0 24px; border-radius: 999px; font-weight: 700; transition: transform 180ms ease, box-shadow 180ms ease; }
.btn-primary { color: #03111f; background: linear-gradient(135deg, #f6fbff 0%, #d9f4ff 100%); box-shadow: 0 18px 44px rgba(93, 214, 255, 0.18); }
.btn-secondary { color: var(--text); border: 1px solid rgba(148, 163, 184, 0.22); background: rgba(255, 255, 255, 0.06); backdrop-filter: blur(16px); }
.btn:hover, .download-card:hover { transform: translateY(-2px); }
.hero-tags { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.hero-tags span { padding: 10px 14px; border-radius: 999px; border: 1px solid rgba(148, 163, 184, 0.16); background: rgba(255, 255, 255, 0.04); color: rgba(226, 232, 240, 0.78); font-size: 0.92rem; }

.hero-visual { min-height: 520px; position: relative; }
.hero-visual::before { content: ""; position: absolute; inset: 14% 10% auto; height: 62%; border-radius: 50%; background: radial-gradient(circle, rgba(93, 214, 255, 0.34), transparent 62%); filter: blur(40px); }
.device-frame { position: absolute; inset: 0; margin: auto; width: min(560px, 100%); border-radius: 34px; padding: 18px; background: linear-gradient(180deg, rgba(255,255,255,0.22), rgba(255,255,255,0.04)), linear-gradient(145deg, rgba(11, 27, 49, 0.92), rgba(5, 15, 28, 0.94)); border: 1px solid rgba(255, 255, 255, 0.12); box-shadow: var(--shadow); transform-style: preserve-3d; animation: heroFloat 7s ease-in-out infinite; }
.hero-mockup { display: block; width: 100%; border-radius: 24px; border: 1px solid rgba(255,255,255,0.08); }
.chip { display: inline-flex; padding: 10px 14px; border-radius: 999px; background: rgba(93, 214, 255, 0.12); color: rgba(173, 240, 255, 0.98); font-size: 0.84rem; letter-spacing: 0.08em; text-transform: uppercase; animation: pulseGlow 3s ease-in-out infinite; }
.floating-logo-card,
.floating-insight-card {
  position: absolute;
  border-radius: 24px;
  box-shadow: 0 26px 60px rgba(0,0,0,0.34);
  backdrop-filter: blur(18px);
}
.floating-logo-card {
  top: -38px;
  right: -34px;
  width: min(280px, 42%);
  padding: 10px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.14);
  animation: orbitCard 7s ease-in-out infinite;
}
.floating-logo-card img {
  display: block;
  width: 100%;
  border-radius: 18px;
}
.floating-insight-card {
  left: -34px;
  bottom: -34px;
  width: min(360px, 74%);
  padding: 22px;
  background: rgba(6, 18, 33, 0.86);
  border: 1px solid rgba(93,214,255,0.18);
}
.floating-insight-card h2 {
  margin: 16px 0 10px;
  font-size: clamp(1.3rem, 2vw, 1.8rem);
  line-height: 1.08;
}
.floating-insight-card p {
  margin: 0;
  color: rgba(226, 232, 240, 0.76);
  line-height: 1.65;
  font-size: 0.95rem;
}

.download-section, .info-band { padding-bottom: 78px; }
.section-head { max-width: 760px; margin-bottom: 28px; }
.section-head p { margin: 0 0 10px; font-size: 0.84rem; letter-spacing: 0.18em; text-transform: uppercase; color: rgba(93, 214, 255, 0.9); }
.section-head h2 { margin: 0; font-size: clamp(2rem, 3vw, 3.3rem); line-height: 1; letter-spacing: -0.05em; }
.section-head span { display: block; margin-top: 14px; color: var(--muted); font-size: 1.04rem; line-height: 1.72; }

.download-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.download-card { position: relative; padding: 28px; border-radius: 28px; background: var(--panel); border: 1px solid var(--line); box-shadow: var(--shadow); backdrop-filter: blur(18px); transition: transform 200ms ease, border-color 200ms ease; }
.download-card::before { content: ""; position: absolute; inset: 0; border-radius: 28px; background: linear-gradient(135deg, rgba(93, 214, 255, 0.14), transparent 46%, rgba(255, 179, 71, 0.08)); opacity: 0.85; }
.download-card > * { position: relative; z-index: 1; }
.download-card h3 { margin: 22px 0 8px; font-size: 1.34rem; line-height: 1.18; }
.download-card p { margin: 0 0 20px; color: var(--muted); line-height: 1.7; }
.download-card span { font-weight: 700; color: rgba(173, 240, 255, 0.98); }
.download-icon { width: 58px; height: 58px; border-radius: 18px; display: inline-flex; align-items: center; justify-content: center; background: rgba(255, 255, 255, 0.08); border: 1px solid rgba(255, 255, 255, 0.1); animation: iconOrbit 5s ease-in-out infinite; transform-origin: center; }

.info-band { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr); gap: 24px; }
.info-copy, .info-panels { border-radius: 30px; border: 1px solid var(--line); background: var(--panel-strong); box-shadow: var(--shadow); }
.info-copy { padding: 34px; }
.info-copy p { margin: 0 0 10px; font-size: 0.84rem; letter-spacing: 0.18em; text-transform: uppercase; color: rgba(93, 214, 255, 0.9); }
.info-copy h2 { margin: 0; font-size: clamp(1.8rem, 3vw, 3rem); line-height: 1.02; letter-spacing: -0.05em; }
.info-copy span { display: block; margin-top: 14px; color: var(--muted); line-height: 1.72; }
.info-panels { padding: 20px; display: grid; gap: 16px; }
.info-panels article { padding: 20px; border-radius: 24px; background: rgba(255, 255, 255, 0.05); border: 1px solid rgba(148, 163, 184, 0.12); }
.info-panels strong { display: block; margin-bottom: 8px; font-size: 1.08rem; }
.info-panels span { color: var(--muted); line-height: 1.65; }

.qr-band {
  display: grid;
  grid-template-columns: minmax(300px, 420px) minmax(0, 1fr);
  gap: 24px;
  padding-bottom: 88px;
}
.qr-visual,
.qr-copy {
  border-radius: 30px;
  border: 1px solid var(--line);
  background: var(--panel-strong);
  box-shadow: var(--shadow);
}
.qr-visual {
  padding: 22px;
  position: relative;
  overflow: hidden;
}
.qr-visual::before {
  content: "";
  position: absolute;
  inset: 14% auto auto -12%;
  width: 14rem;
  height: 14rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(93,214,255,0.28), transparent 66%);
  filter: blur(16px);
}
.qr-frame {
  position: relative;
  border-radius: 28px;
  padding: 12px;
  background: linear-gradient(145deg, rgba(114,228,255,0.3), rgba(255,179,71,0.18));
}
.qr-frame img {
  display: block;
  width: 100%;
  border-radius: 22px;
  background: #0a1220;
}
.qr-copy {
  padding: 34px;
}
.qr-copy p {
  margin: 0;
  color: rgba(93,214,255,0.92);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.84rem;
}
.qr-copy h2 {
  margin: 12px 0 0;
  font-size: clamp(1.8rem, 3vw, 3rem);
  line-height: 1.02;
  letter-spacing: -0.05em;
}
.qr-copy > span {
  display: block;
  margin-top: 16px;
  color: var(--muted);
  line-height: 1.75;
}
.qr-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 24px;
}
.qr-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 700;
}
.qr-links a:first-child {
  background: linear-gradient(135deg, #f6fbff, #d9f4ff);
  color: #03111f;
}
.qr-links a:last-child {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(148,163,184,0.18);
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 0 rgba(93,214,255,0.0); }
  50% { box-shadow: 0 0 22px rgba(93,214,255,0.28); }
}

@keyframes iconOrbit {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-4px) rotate(4deg); }
}

@keyframes heroFloat {
  0%, 100% { transform: perspective(1200px) rotateX(0deg) rotateY(-4deg) translateY(0); }
  50% { transform: perspective(1200px) rotateX(2deg) rotateY(4deg) translateY(-8px); }
}

@keyframes orbitCard {
  0%, 100% { transform: translateY(0) rotate(-3deg); }
  50% { transform: translateY(-8px) rotate(2deg); }
}

@media (max-width: 1080px) {
  .hero, .download-grid, .info-band, .qr-band { grid-template-columns: 1fr; }
  .hero-visual { min-height: 560px; }
}

@media (max-width: 720px) {
  .landing-shell { width: min(100% - 24px, 1240px); }
  .landing-nav { flex-direction: column; align-items: flex-start; }
  .landing-nav-links { width: 100%; }
  .landing-nav-links a, .btn { width: 100%; }
  .device-frame { width: min(100%, 360px); }
  .floating-logo-card { right: 10px; top: -24px; width: 44%; }
  .floating-insight-card { left: 10px; right: 10px; bottom: -24px; width: auto; }
}