:root {
  --bg: #060714;
  --bg-soft: #0b0c1e;
  --card: rgba(255, 255, 255, 0.04);
  --line: rgba(255, 255, 255, 0.09);
  --text: #f4f4fa;
  --muted: #9a99b3;
  --accent: #7c6cff;
  --accent-soft: rgba(124, 108, 255, 0.14);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "Inter", "Apple SD Gothic Neo", -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* ── 배경 글로우 ───────────────────────────── */
.glow {
  position: absolute; border-radius: 50%; filter: blur(120px);
  pointer-events: none; z-index: 0;
}

/* ── 네비게이션 ───────────────────────────── */
nav.top {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  background: rgba(6, 7, 20, 0.7);
  border-bottom: 1px solid var(--line);
}
nav.top .inner {
  max-width: 1080px; margin: 0 auto; padding: 14px 24px;
  display: flex; align-items: center; gap: 10px;
}
nav.top img { width: 30px; height: 30px; border-radius: 8px; }
nav.top .brand { font-weight: 800; font-size: 17px; letter-spacing: -0.3px; }
nav.top .links { margin-left: auto; display: flex; gap: 24px; font-size: 14px; }
nav.top .links a { color: var(--muted); font-weight: 500; transition: color 0.2s; }
nav.top .links a:hover { color: var(--text); }

/* ── 히어로 ───────────────────────────── */
.hero {
  position: relative; padding: 168px 0 96px; text-align: center;
}
.eyebrow-pill {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--accent-soft); border: 1px solid rgba(124, 108, 255, 0.35);
  color: #b3a9ff; font-size: 13px; font-weight: 600;
  padding: 7px 16px; border-radius: 999px; margin-bottom: 28px;
}
.eyebrow-pill .dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--accent);
  animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.35; } }
h1.display {
  font-size: clamp(44px, 7vw, 76px); font-weight: 800;
  letter-spacing: -0.04em; line-height: 1.08; margin-bottom: 24px;
}
h1.display .grad {
  background: linear-gradient(120deg, #a89bff 0%, #7c6cff 50%, #5a8bff 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .sub {
  color: var(--muted); font-size: 18px; max-width: 560px;
  margin: 0 auto 40px;
}
.cta-row { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn-store {
  display: inline-flex; align-items: center; gap: 12px;
  background: #fff; color: #0a0a14; padding: 12px 24px; border-radius: 14px;
  text-align: left; transition: transform 0.2s, box-shadow 0.2s;
}
.btn-store:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(124,108,255,0.3); }
.btn-store svg { width: 26px; height: 26px; }
.btn-store .small { display: block; font-size: 11px; font-weight: 500; line-height: 1.2; opacity: 0.65; }
.btn-store .big { display: block; font-size: 17px; font-weight: 700; line-height: 1.25; letter-spacing: -0.2px; }
.btn-ghost {
  display: inline-flex; align-items: center;
  border: 1px solid var(--line); color: var(--text);
  padding: 12px 24px; border-radius: 14px; font-size: 15px; font-weight: 600;
  transition: background 0.2s;
}
.btn-ghost:hover { background: var(--card); }

/* ── 폰 목업 ───────────────────────────── */
.phone {
  display: inline-block; background: #111118;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 44px; padding: 12px;
  box-shadow: 0 40px 90px rgba(0, 0, 0, 0.55), 0 0 80px rgba(124, 108, 255, 0.12);
  transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.phone img { display: block; width: 100%; border-radius: 34px; }
.hero .phone {
  width: min(340px, 78vw); margin-top: 72px;
  transform: perspective(1400px) rotateX(8deg) rotateY(-9deg) rotateZ(1.5deg);
}
.hero .phone:hover { transform: perspective(1400px) rotateX(0) rotateY(0) rotateZ(0); }

/* ── 기능 섹션 ───────────────────────────── */
section.feature { position: relative; padding: 110px 0; }
section.feature .row {
  display: flex; align-items: center; gap: 72px;
}
section.feature .row.flip { flex-direction: row-reverse; }
section.feature .copy { flex: 1; min-width: 0; }
section.feature .shot { flex: 0 0 320px; text-align: center; }
section.feature .shot .phone {
  width: min(300px, 80vw);
  transform: perspective(1400px) rotateY(10deg) rotateX(3deg);
}
section.feature .row.flip .shot .phone {
  transform: perspective(1400px) rotateY(-10deg) rotateX(3deg);
}
section.feature .shot .phone:hover { transform: perspective(1400px) rotateY(0) rotateX(0); }
.eyebrow {
  color: var(--accent); font-size: 13px; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase; margin-bottom: 14px;
}
section.feature h2 {
  font-size: clamp(30px, 4vw, 42px); font-weight: 800;
  letter-spacing: -0.03em; line-height: 1.15; margin-bottom: 18px;
}
section.feature .desc { color: var(--muted); font-size: 16.5px; margin-bottom: 24px; }
.checks { list-style: none; }
.checks li {
  position: relative; padding-left: 30px; margin-bottom: 12px;
  color: #cfcee0; font-size: 15px;
}
.checks li::before {
  content: "✓"; position: absolute; left: 0; top: 0;
  width: 20px; height: 20px; border-radius: 6px;
  background: var(--accent-soft); color: #b3a9ff;
  font-size: 12px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
}
.checks li.chrome svg {
  display: inline-block; width: 15px; height: 15px;
  fill: #b3a9ff; vertical-align: -2px; margin-right: 7px;
}

/* ── FAQ ───────────────────────────── */
section.faq { padding: 110px 0; }
section.faq h2 {
  font-size: clamp(30px, 4vw, 40px); font-weight: 800;
  letter-spacing: -0.03em; text-align: center; margin-bottom: 48px;
}
details {
  border: 1px solid var(--line); border-radius: 16px;
  background: var(--card); margin-bottom: 12px; overflow: hidden;
}
details summary {
  cursor: pointer; padding: 20px 24px; font-weight: 600; font-size: 15.5px;
  list-style: none; display: flex; justify-content: space-between; align-items: center;
}
details summary::-webkit-details-marker { display: none; }
details summary::after { content: "+"; color: var(--muted); font-size: 20px; font-weight: 400; }
details[open] summary::after { content: "–"; }
details .a { padding: 0 24px 20px; color: var(--muted); font-size: 14.5px; }

/* ── 파이널 CTA ───────────────────────────── */
section.final {
  position: relative; padding: 130px 0 150px; text-align: center;
}
section.final h2 {
  font-size: clamp(34px, 5vw, 54px); font-weight: 800;
  letter-spacing: -0.035em; line-height: 1.15; margin-bottom: 18px;
}
section.final .sub { color: var(--muted); font-size: 17px; margin-bottom: 36px; }

/* ── 푸터 ───────────────────────────── */
footer.site {
  border-top: 1px solid var(--line); padding: 36px 0;
}
footer.site .inner {
  max-width: 1080px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; gap: 20px; flex-wrap: wrap;
  color: var(--muted); font-size: 13.5px;
}
footer.site a:hover { color: var(--text); }
footer.site .right { margin-left: auto; display: flex; gap: 20px; }

/* ── 스크롤 리빌 ───────────────────────────── */
.reveal { opacity: 0; transform: translateY(36px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ── 모바일 ───────────────────────────── */
@media (max-width: 820px) {
  section.feature { padding: 72px 0; }
  section.feature .row, section.feature .row.flip {
    flex-direction: column; gap: 44px; text-align: center;
  }
  section.feature .copy { order: 1; }
  section.feature .shot { order: 2; flex-basis: auto; }
  .checks { display: inline-block; text-align: left; }
  nav.top .links a.hide-m { display: none; }
}