:root {
  color-scheme: dark;
  --cocoa-950: #160d0b;
  --cocoa-900: #1c1210;
  --cocoa-800: #2d1c18;
  --cream: #fff1d8;
  --cream-muted: #d8c9bd;
  --coral: #dd746f;
  --coral-light: #f7b0a7;
  --amber: #f3bc67;
  --sage: #96b27b;
}

* { box-sizing: border-box; }
html { background: var(--cocoa-950); scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  color: var(--cream);
  background:
    radial-gradient(circle at 82% 8%, rgba(221,116,111,.16), transparent 30rem),
    radial-gradient(circle at 6% 62%, rgba(243,188,103,.08), transparent 28rem),
    var(--cocoa-950);
  font-family: -apple-system, BlinkMacSystemFont, "Pretendard", "Noto Sans KR", sans-serif;
}

main { width: min(1160px, calc(100% - 40px)); margin: 0 auto; }
.hero { min-height: 760px; display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 64px; padding: 70px 0 50px; }
.hero-copy { position: relative; z-index: 2; }
.eyebrow { margin: 0 0 16px; color: var(--coral-light); font-size: 12px; font-weight: 800; letter-spacing: .18em; }
h1 {
  margin: 0;
  font-size: clamp(34px, 4.2vw, 58px);
  line-height: 1.14;
  letter-spacing: -.045em;
  word-break: keep-all;
}
.lead { max-width: 610px; margin: 24px 0 28px; color: var(--cream-muted); font-size: 18px; line-height: 1.75; word-break: keep-all; }
.store-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.store-button {
  min-width: 242px; height: 68px; display: flex; align-items: center; gap: 14px; padding: 0 20px;
  border: 1px solid rgba(255,241,216,.18); border-radius: 18px; color: var(--cream); text-decoration: none;
  background: linear-gradient(145deg, #35211c, #231613); box-shadow: 0 14px 38px rgba(0,0,0,.24);
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.store-button.android:hover { transform: translateY(-2px); border-color: var(--coral-light); box-shadow: 0 18px 48px rgba(221,116,111,.18); }
.store-button.disabled { opacity: .48; cursor: not-allowed; }
.store-icon { width: 34px; color: var(--sage); font-size: 27px; text-align: center; }
.store-icon.apple { color: var(--cream); }
.store-button small, .store-button strong { display: block; }
.store-button small { margin-bottom: 3px; color: var(--cream-muted); font-size: 9px; font-weight: 800; letter-spacing: .13em; }
.store-button strong { font-size: 15px; }
.install-note { margin: 15px 4px 0; color: rgba(216,201,189,.68); font-size: 12px; line-height: 1.65; }

.phone-stage { position: relative; display: grid; place-items: center; min-height: 660px; }
.phone { position: relative; z-index: 2; width: min(345px, 82vw); padding: 10px; border: 1px solid rgba(255,241,216,.28); border-radius: 50px; background: #090605; box-shadow: 0 45px 100px rgba(0,0,0,.52), inset 0 0 0 4px #251714; transform: rotate(2deg); }
.phone::before { content: ""; position: absolute; z-index: 3; top: 18px; left: 50%; width: 82px; height: 22px; border-radius: 14px; background: #090605; transform: translateX(-50%); }
.phone img { display: block; width: 100%; border-radius: 40px; }
.glow { position: absolute; border-radius: 999px; filter: blur(2px); }
.glow-one { width: 360px; height: 360px; background: rgba(221,116,111,.22); }
.glow-two { width: 240px; height: 240px; right: 3%; bottom: 8%; background: rgba(243,188,103,.15); }

.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; padding: 60px 0; }
.features article { min-height: 210px; padding: 28px; border: 1px solid rgba(255,241,216,.1); border-radius: 26px; background: rgba(45,28,24,.64); }
.features span { color: var(--coral-light); font-size: 12px; font-weight: 900; letter-spacing: .15em; }
.features h2 { margin: 28px 0 12px; font-size: 18px; letter-spacing: .02em; }
.features p { margin: 0; color: var(--cream-muted); font-size: 14px; line-height: 1.7; word-break: keep-all; }

.feedback { display: grid; grid-template-columns: 180px 1fr; align-items: center; gap: 42px; margin: 40px 0 90px; padding: 36px 46px; border-radius: 34px; background: linear-gradient(125deg, rgba(221,116,111,.18), rgba(45,28,24,.82)); }
.feedback img { width: 180px; border-radius: 38px; box-shadow: 0 18px 45px rgba(0,0,0,.28); }
.feedback h2 { margin: 0 0 12px; font-size: clamp(24px, 3vw, 38px); }
.feedback p:last-child { margin: 0; color: var(--cream-muted); line-height: 1.75; }
footer { padding: 32px 20px 48px; color: rgba(216,201,189,.5); text-align: center; font-size: 12px; }

@media (max-width: 820px) {
  main { width: min(100% - 28px, 600px); }
  .hero { grid-template-columns: 1fr; gap: 8px; padding-top: max(42px, env(safe-area-inset-top)); text-align: center; }
  .lead { font-size: 16px; }
  .store-actions { justify-content: center; }
  .install-note { text-align: center; }
  .phone-stage { min-height: 600px; }
  .features { grid-template-columns: 1fr; padding-top: 30px; }
  .features article { min-height: 0; }
  .feedback { grid-template-columns: 1fr; text-align: center; padding: 32px 24px; }
  .feedback img { width: 132px; margin: auto; border-radius: 30px; }
}

@media (max-width: 420px) {
  .hero { padding-bottom: 24px; }
  h1 { font-size: 32px; }
  .store-button { width: 100%; min-width: 0; text-align: left; }
  .phone { width: 306px; }
  .phone-stage { min-height: 610px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .store-button { transition: none; }
}