:root {
  color-scheme: light dark;
  --bg: #f8f7f2;
  --ink: #18201d;
  --muted: #5d6660;
  --line: #d8d9d2;
  --accent: #256f68;
  --accent-2: #b14d35;
  --panel: #ffffff;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101412;
    --ink: #edf1ed;
    --muted: #aeb8b0;
    --line: #2a322f;
    --panel: #171d1a;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
}

a {
  color: inherit;
}

.shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.topbar {
  border-bottom: 1px solid var(--line);
  background: color-mix(in oklab, var(--bg) 92%, transparent);
  position: sticky;
  top: 0;
  z-index: 2;
  backdrop-filter: blur(12px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 24px;
}

.brand {
  font-weight: 800;
  font-size: 1.15rem;
  text-decoration: none;
}

.links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  font-size: .95rem;
}

.links a {
  text-decoration: none;
  color: var(--muted);
}

.hero {
  min-height: 72vh;
  display: grid;
  align-items: center;
  padding: 72px 0 42px;
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, .95fr);
  gap: 48px;
  align-items: center;
}

h1 {
  font-size: clamp(3rem, 7vw, 6.6rem);
  line-height: .92;
  letter-spacing: 0;
  margin: 0 0 20px;
}

h2 {
  font-size: clamp(1.7rem, 4vw, 3rem);
  line-height: 1.05;
  margin: 0 0 16px;
}

h3 {
  margin: 0 0 8px;
}

.lead {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  color: var(--muted);
  max-width: 720px;
}

.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border: 1px solid var(--ink);
  padding: 0 18px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
}

.button.primary {
  background: var(--ink);
  color: var(--bg);
}

.product-shot {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 8px;
  padding: 18px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, .08);
}

.phone {
  aspect-ratio: 9 / 18;
  border: 10px solid var(--ink);
  border-radius: 32px;
  padding: 18px;
  background: linear-gradient(180deg, color-mix(in oklab, var(--accent) 12%, var(--panel)), var(--panel));
  display: grid;
  align-content: space-between;
}

.timer {
  font-size: clamp(2.4rem, 6vw, 4.4rem);
  font-weight: 800;
}

.progress {
  height: 10px;
  border-radius: 999px;
  background: var(--line);
  overflow: hidden;
}

.progress span {
  display: block;
  width: 62%;
  height: 100%;
  background: var(--accent);
}

.section {
  padding: 72px 0;
  border-bottom: 1px solid var(--line);
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px;
  background: var(--panel);
}

.muted {
  color: var(--muted);
}

.price {
  font-size: 2rem;
  font-weight: 800;
}

.notice {
  border-left: 4px solid var(--accent-2);
  padding: 14px 16px;
  background: color-mix(in oklab, var(--accent-2) 8%, transparent);
}

.footer {
  padding: 32px 0;
  color: var(--muted);
}

@media (max-width: 820px) {
  .hero-grid,
  .grid {
    grid-template-columns: 1fr;
  }

  .links {
    gap: 10px;
  }
}