:root {
  --brand: #7B61FF;
  --brand-2: #FF6B9D;
  --ink: #211d2b;
  --ink-soft: #6b6478;
  --bg: #ffffff;
  --card: #f7f5ff;
  --line: rgba(123, 97, 255, 0.16);
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #f2f0f7;
    --ink-soft: #a9a2b8;
    --bg: #15121d;
    --card: #1f1a2c;
    --line: rgba(255, 255, 255, 0.12);
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo",
    "Pretendard", "Noto Sans KR", "Malgun Gothic", sans-serif;
  line-height: 1.7;
  word-break: keep-all;
}

.wrap { width: min(720px, 100% - 40px); margin-inline: auto; }

/* 키보드 사용자를 위한 건너뛰기 링크 — 평소엔 화면 밖에 둔다 */
.skip {
  position: absolute;
  left: -9999px;
}
.skip:focus {
  left: 12px;
  top: 12px;
  z-index: 10;
  background: var(--brand);
  color: #fff;
  padding: 10px 16px;
  border-radius: 8px;
}

/* ── 히어로 ─────────────────────────────── */
.hero {
  background: linear-gradient(160deg, var(--brand), var(--brand-2));
  color: #fff;
  padding: 64px 0 72px;
  text-align: center;
}

.app-icon {
  border-radius: 22px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.18);
}

.hero h1 {
  font-size: clamp(28px, 6vw, 42px);
  line-height: 1.35;
  margin: 22px 0 14px;
  letter-spacing: -0.02em;
}

.lead {
  margin: 0 auto;
  max-width: 30em;
  color: rgba(255, 255, 255, 0.92);
  font-size: 16px;
}

.cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-top: 30px;
}

.btn {
  display: inline-block;
  padding: 15px 24px;
  border-radius: 14px;
  font-weight: 700;
  text-decoration: none;
  font-size: 15px;
  transition: transform 0.15s ease;
}
.btn:hover { transform: translateY(-2px); }

.btn-play { background: #fff; color: var(--brand); }

.btn-app {
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.5);
}
.btn-soon { cursor: default; opacity: 0.85; }
.btn-soon:hover { transform: none; }

.note {
  margin-top: 18px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.85);
}

/* ── 숫자 ──────────────────────────────── */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-top: -34px;
  padding: 22px 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  position: relative;
  text-align: center;
}
.stats div { display: flex; flex-direction: column; }
.stats strong {
  font-size: clamp(17px, 4.4vw, 22px);
  color: var(--brand);
  letter-spacing: -0.02em;
}
.stats span { font-size: 12px; color: var(--ink-soft); }

@media (max-width: 420px) {
  .stats { grid-template-columns: repeat(2, 1fr); gap: 14px 8px; }
}

/* ── 본문 블록 ──────────────────────────── */
.block { margin-top: 56px; }

.block h2 {
  font-size: clamp(20px, 4.6vw, 26px);
  margin: 0 0 12px;
  letter-spacing: -0.02em;
}

.block p { margin: 0; color: var(--ink-soft); }
.block p b { color: var(--ink); }

.feat { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 14px; }
.feat li {
  padding: 16px 18px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
}
.feat b { display: block; margin-bottom: 3px; }
.feat span { color: var(--ink-soft); font-size: 14px; }

/* ── D-day 데모 카드 ────────────────────── */
.dday-demo {
  margin-top: 20px;
  padding: 20px 22px;
  border-radius: 18px;
  color: #fff;
  background: linear-gradient(120deg, #3949AB, #5E7BEA);
}
.dday-top {
  display: flex;
  justify-content: space-between;
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.8);
}
.dday-num {
  font-size: 40px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
}
.dday-sub { font-size: 14px; color: rgba(255, 255, 255, 0.92); }

/* ── 푸터 ──────────────────────────────── */
.foot {
  margin: 72px auto 40px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  text-align: center;
  color: var(--ink-soft);
}
.foot p { margin: 4px 0; }
.small { font-size: 13px; }
.dim { color: var(--ink-soft); opacity: 0.75; font-size: 12px; margin-top: 12px; }
.foot a { color: var(--brand); }