/* ============ tokens ============ */
:root {
  --bg: #07060c;
  --bg-soft: #0d0b16;
  --ink: #f5f3fb;
  --muted: rgba(245, 243, 251, 0.56);
  --faint: rgba(245, 243, 251, 0.34);
  --glass: rgba(255, 255, 255, 0.045);
  --glass-strong: rgba(255, 255, 255, 0.07);
  --line: rgba(255, 255, 255, 0.1);
  --line-soft: rgba(255, 255, 255, 0.06);
  --c-blue: #5fa8fa;
  --c-violet: #b07cff;
  --c-pink: #f472b6;
  --grad: linear-gradient(105deg, var(--c-blue), var(--c-violet) 52%, var(--c-pink));
  --display: "Clash Display", "SF Pro Display", sans-serif;
  --body: "Satoshi", -apple-system, sans-serif;
  --maxw: 1120px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--body);
  background: var(--bg);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  line-height: 1.5;
}

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

/* ============ atmosphere ============ */
.aurora {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  filter: blur(70px);
}
.blob {
  position: absolute;
  border-radius: 50%;
  opacity: 0.45;
  mix-blend-mode: screen;
}
.b1 { width: 55vw; height: 55vw; left: -12vw; top: -18vw; background: radial-gradient(circle, var(--c-violet), transparent 65%); animation: drift1 22s ease-in-out infinite; }
.b2 { width: 48vw; height: 48vw; right: -14vw; top: 4vw; background: radial-gradient(circle, var(--c-pink), transparent 64%); animation: drift2 26s ease-in-out infinite; }
.b3 { width: 60vw; height: 60vw; left: 18vw; top: 36vw; background: radial-gradient(circle, var(--c-blue), transparent 66%); opacity: 0.3; animation: drift3 30s ease-in-out infinite; }

@keyframes drift1 { 50% { transform: translate(8vw, 6vw) scale(1.1); } }
@keyframes drift2 { 50% { transform: translate(-6vw, 8vw) scale(1.08); } }
@keyframes drift3 { 50% { transform: translate(-8vw, -6vw) scale(0.92); } }

.grain {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ============ nav ============ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px clamp(20px, 5vw, 56px);
  transition: padding .3s ease, background .3s ease, backdrop-filter .3s ease, border-color .3s ease;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  padding-top: 12px; padding-bottom: 12px;
  background: rgba(7, 6, 12, 0.6);
  backdrop-filter: saturate(160%) blur(20px);
  -webkit-backdrop-filter: saturate(160%) blur(20px);
  border-bottom-color: var(--line-soft);
}
.brand { display: flex; align-items: center; gap: 9px; font-family: var(--display); font-weight: 600; font-size: 19px; letter-spacing: -0.01em; }
.brand-duck { width: 26px; height: 26px; object-fit: contain; }
.nav-links { display: flex; align-items: center; gap: clamp(14px, 2vw, 30px); }
.nav-links a { font-size: 14.5px; font-weight: 500; color: var(--muted); transition: color .2s ease; }
.nav-links a:hover { color: var(--ink); }
.nav-ghost { display: none; }
.nav-cta {
  color: var(--ink) !important;
  padding: 8px 17px;
  border-radius: 999px;
  background: var(--glass-strong);
  border: 1px solid var(--line);
  backdrop-filter: blur(10px);
}
.nav-cta:hover { background: rgba(255,255,255,0.12); }
@media (max-width: 640px) { .nav-links a:not(.nav-cta) { display: none; } }

/* ============ hero ============ */
.hero {
  position: relative;
  text-align: center;
  padding: clamp(140px, 20vh, 220px) clamp(20px, 5vw, 40px) 70px;
  max-width: 940px;
  margin: 0 auto;
}
.hero-glow {
  position: absolute;
  width: 620px; height: 620px;
  left: 50%; top: 8%;
  transform: translateX(-50%);
  background: radial-gradient(circle, rgba(176,124,255,0.32), transparent 60%);
  filter: blur(40px);
  z-index: -1;
  pointer-events: none;
}
.hero-icon {
  width: clamp(110px, 16vw, 158px);
  margin: 0 auto 34px;
  animation: float 6s ease-in-out infinite;
}
.hero-icon img {
  width: 100%;
  border-radius: 30%;
  filter: drop-shadow(0 30px 60px rgba(0,0,0,0.55)) drop-shadow(0 0 50px rgba(176,124,255,0.35));
}
@keyframes float { 50% { transform: translateY(-12px); } }

.eyebrow {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 22px;
}
.hero h1 {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(48px, 8.5vw, 104px);
  line-height: 0.98;
  letter-spacing: -0.02em;
  word-spacing: 0.06em;
}
.grad {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lede {
  max-width: 620px;
  margin: 26px auto 0;
  font-size: clamp(16px, 2vw, 19px);
  color: var(--muted);
}
.lede em { color: var(--ink); font-style: italic; }
.lede.center { text-align: center; }

.cta-row { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 38px; }
.cta-row.center { margin-top: 30px; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--body);
  font-weight: 600;
  font-size: 15.5px;
  padding: 14px 26px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .25s cubic-bezier(.2,.8,.2,1), box-shadow .25s ease, background .25s ease;
}
.btn-primary {
  color: #0a0710;
  background: linear-gradient(105deg, #d7e6ff, #fff 40%, #f6dcff);
  box-shadow: 0 10px 30px -8px rgba(176,124,255,0.5);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 44px -10px rgba(176,124,255,0.7); }
.btn-ghost {
  color: var(--ink);
  background: var(--glass-strong);
  border-color: var(--line);
  backdrop-filter: blur(10px);
}
.btn-ghost:hover { transform: translateY(-2px); background: rgba(255,255,255,0.12); }
.micro { margin-top: 22px; font-size: 13px; color: var(--faint); }

/* ============ demo ============ */
.demo-wrap { padding: 10px clamp(16px, 5vw, 40px) 40px; }
.demo {
  position: relative;
  max-width: var(--maxw);
  margin: 0 auto;
  aspect-ratio: 16 / 9;
  border-radius: 22px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--bg-soft);
  box-shadow: 0 50px 120px -40px rgba(0,0,0,0.8), 0 0 0 1px rgba(255,255,255,0.02) inset;
}
.demo-video { width: 100%; height: 100%; object-fit: cover; display: block; }
.demo-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  background:
    radial-gradient(circle at 50% 40%, rgba(176,124,255,0.18), transparent 60%),
    linear-gradient(160deg, #100d1c, #07060c);
  color: var(--muted);
  font-weight: 500;
  letter-spacing: 0.04em;
}
.play {
  width: 76px; height: 76px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(12px);
  color: var(--ink);
  display: grid; place-items: center;
  cursor: pointer;
  transition: transform .25s ease, background .25s ease;
}
.play:hover { transform: scale(1.08); background: rgba(255,255,255,0.16); }
.demo-edge {
  position: absolute; inset: 0;
  pointer-events: none;
  border-radius: 22px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.12);
}

/* ============ sections ============ */
.section { max-width: var(--maxw); margin: 0 auto; padding: clamp(80px, 12vh, 140px) clamp(20px, 5vw, 40px); }
.kicker {
  font-size: 12.5px; font-weight: 600; letter-spacing: 0.26em;
  text-transform: uppercase; color: var(--c-violet); margin-bottom: 16px;
}
.section h2, .channels h2, .safety h2, .download h2 {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(30px, 5vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.015em;
  word-spacing: 0.08em;
}
.section > h2 { max-width: 640px; }
.section.safety { text-align: center; }
/* Center the heading block (not just its text) in the centered section. */
.section.safety > h2 { max-width: 760px; margin-left: auto; margin-right: auto; }
.section.safety .lede { margin-top: 18px; }

/* feature grid */
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 52px;
}
@media (max-width: 880px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .grid { grid-template-columns: 1fr; } }
.card {
  position: relative;
  padding: 28px 26px 30px;
  border-radius: 20px;
  background: var(--glass);
  border: 1px solid var(--line-soft);
  backdrop-filter: blur(14px);
  overflow: hidden;
  transition: transform .35s cubic-bezier(.2,.8,.2,1), border-color .35s ease, background .35s ease;
}
.card::after {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(420px circle at var(--mx,50%) var(--my,0%), rgba(176,124,255,0.14), transparent 45%);
  opacity: 0; transition: opacity .35s ease;
}
.card:hover { transform: translateY(-6px); border-color: var(--line); background: var(--glass-strong); }
.card:hover::after { opacity: 1; }
.card-ic {
  font-size: 22px;
  width: 50px; height: 50px;
  display: grid; place-items: center;
  border-radius: 14px;
  background: var(--grad);
  color: #fff;
  margin-bottom: 18px;
  box-shadow: 0 10px 24px -8px rgba(176,124,255,0.6);
}
.card h3 { font-family: var(--display); font-weight: 500; font-size: 20px; letter-spacing: -0.01em; margin-bottom: 9px; }
.card p { font-size: 14.5px; color: var(--muted); }

/* channels */
.channels-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}
@media (max-width: 820px) { .channels-inner { grid-template-columns: 1fr; gap: 36px; } }
.channels-copy .muted { color: var(--muted); margin-top: 18px; font-size: 16.5px; max-width: 420px; }
.chips { display: flex; flex-wrap: wrap; gap: 14px; }
.chip {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(20px, 3vw, 30px);
  padding: 18px 28px;
  border-radius: 18px;
  background: var(--glass);
  border: 1px solid var(--line-soft);
  backdrop-filter: blur(12px);
  flex: 1 1 40%;
  text-align: center;
  transition: transform .3s ease, color .3s ease, border-color .3s ease;
}
.chip:hover { transform: translateY(-4px) rotate(-1deg); border-color: var(--line); }
.chip:nth-child(1):hover { color: var(--c-blue); }
.chip:nth-child(2):hover { color: var(--c-blue); }
.chip:nth-child(3):hover { color: var(--c-violet); }
.chip:nth-child(4):hover { color: var(--c-pink); }

/* safety */
.safety-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 54px;
  text-align: left;
}
@media (max-width: 820px) { .safety-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .safety-grid { grid-template-columns: 1fr; } }
.srow {
  padding: 22px;
  border-radius: 16px;
  border: 1px solid var(--line-soft);
  background: var(--glass);
}
.srow b { font-family: var(--display); font-weight: 500; font-size: 17px; display: block; margin-bottom: 6px; }
.srow span { font-size: 14px; color: var(--muted); }

/* download */
.download { padding: clamp(40px, 8vh, 90px) clamp(20px, 5vw, 40px) 90px; }
.download-card {
  position: relative;
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
  padding: clamp(48px, 7vw, 80px) 40px;
  border-radius: 30px;
  background: linear-gradient(160deg, rgba(255,255,255,0.07), rgba(255,255,255,0.02));
  border: 1px solid var(--line);
  backdrop-filter: blur(18px);
  overflow: hidden;
}
.download-card::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: radial-gradient(circle at 50% -10%, rgba(176,124,255,0.3), transparent 55%);
}
.dl-duck { width: 84px; height: 84px; object-fit: contain; margin-bottom: 14px; filter: drop-shadow(0 14px 30px rgba(0,0,0,0.5)); }
.download-card p { color: var(--muted); max-width: 460px; margin: 16px auto 0; font-size: 16px; }

/* footer */
.footer { border-top: 1px solid var(--line-soft); padding: 44px clamp(20px, 5vw, 56px); }
.footer-inner {
  max-width: var(--maxw); margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 18px;
}
.footer-links { display: flex; gap: 26px; }
.footer-links a { font-size: 14.5px; color: var(--muted); transition: color .2s ease; }
.footer-links a:hover { color: var(--ink); }
.copy { width: 100%; font-size: 12.5px; color: var(--faint); padding-top: 8px; }

/* ============ reveal ============ */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .8s cubic-bezier(.2,.8,.2,1), transform .8s cubic-bezier(.2,.8,.2,1); }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-d="1"] { transition-delay: .08s; }
.reveal[data-d="2"] { transition-delay: .16s; }
.reveal[data-d="3"] { transition-delay: .24s; }
.reveal[data-d="4"] { transition-delay: .32s; }
.reveal[data-d="5"] { transition-delay: .4s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero-icon, .blob { animation: none; }
  html { scroll-behavior: auto; }
}

/* legal pages */
.legal { max-width: 760px; margin: 0 auto; padding: 150px clamp(20px,5vw,40px) 90px; }
.legal h1 { font-family: var(--display); font-weight: 600; font-size: clamp(34px,5vw,52px); letter-spacing: -0.03em; margin-bottom: 8px; }
.legal .updated { color: var(--faint); font-size: 14px; margin-bottom: 40px; }
.legal h2 { font-family: var(--display); font-weight: 500; font-size: 22px; margin: 36px 0 12px; }
.legal p, .legal li { color: var(--muted); font-size: 15.5px; margin-bottom: 12px; }
.legal ul { padding-left: 22px; }
.legal a { color: var(--c-violet); }
.legal .back { display: inline-flex; gap: 7px; align-items: center; margin-bottom: 30px; color: var(--muted); font-weight: 500; }
.legal .back:hover { color: var(--ink); }