:root {
  color-scheme: light;
  --bg: #f5f2eb;
  --surface: rgba(255, 255, 252, 0.7);
  --surface-strong: rgba(255, 255, 252, 0.92);
  --ink: #17211b;
  --muted: #6d776f;
  --line: rgba(23, 33, 27, 0.1);
  --green: #18b56f;
  --green-deep: #087248;
  --glow: rgba(24, 181, 111, 0.2);
  --shadow: rgba(52, 67, 58, 0.14);
}

body[data-theme="night"] {
  color-scheme: dark;
  --bg: #08110d;
  --surface: rgba(18, 30, 24, 0.72);
  --surface-strong: rgba(14, 24, 19, 0.9);
  --ink: #edf7ef;
  --muted: #9eaea4;
  --line: rgba(237, 247, 239, 0.12);
  --green: #56d98f;
  --green-deep: #11a968;
  --glow: rgba(86, 217, 143, 0.18);
  --shadow: rgba(0, 0, 0, 0.36);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--bg);
}

body {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 50% -20%, var(--glow), transparent 38rem),
    linear-gradient(180deg, color-mix(in srgb, var(--bg), white 8%), var(--bg));
  color: var(--ink);
  font-family:
    ui-rounded,
    "SF Pro Rounded",
    "Avenir Next",
    "Nunito Sans",
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  transition:
    background 900ms ease,
    color 900ms ease;
}

body::before {
  position: fixed;
  inset: 0;
  pointer-events: none;
  content: "";
  background:
    linear-gradient(120deg, transparent 0 36%, rgba(255, 255, 255, 0.2) 50%, transparent 64%),
    radial-gradient(circle at 18% 84%, rgba(24, 181, 111, 0.12), transparent 24rem);
  opacity: 0.8;
}

body[data-theme="night"]::before {
  background:
    radial-gradient(circle at 26% 22%, rgba(86, 217, 143, 0.12), transparent 18rem),
    radial-gradient(circle at 78% 80%, rgba(255, 255, 255, 0.06), transparent 20rem);
}

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

.page-shell {
  position: relative;
  width: min(1120px, calc(100% - 36px));
  min-height: 100vh;
  margin: 0 auto;
  padding: clamp(18px, 4vw, 40px) 0;
}

.hero {
  min-height: calc(100vh - clamp(36px, 8vw, 80px));
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: clamp(28px, 5vw, 54px);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.wordmark {
  display: inline-flex;
  align-items: baseline;
  gap: 0.04em;
  color: var(--ink);
  font-family:
    "SF Mono",
    "Roboto Mono",
    "Menlo",
    ui-monospace,
    monospace;
  font-size: clamp(1.25rem, 3vw, 2rem);
  font-weight: 800;
  letter-spacing: 0;
  font-variant-numeric: slashed-zero tabular-nums;
  font-feature-settings: "zero" 1, "tnum" 1;
}

.wordmark span:nth-child(2) {
  color: var(--green);
  font-size: 0.52em;
}

.domain-tabs {
  display: inline-flex;
  gap: 6px;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  box-shadow: 0 18px 50px var(--shadow);
  backdrop-filter: blur(20px);
}

.domain-tab {
  min-width: 58px;
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 800;
  text-align: center;
}

.domain-tab.is-active {
  color: #ffffff;
  background: linear-gradient(135deg, #28c978, var(--green-deep));
}

.clock-card {
  width: min(100%, 980px);
  align-self: center;
  justify-self: center;
  padding: clamp(24px, 7vw, 64px);
  border: 1px solid var(--line);
  border-radius: clamp(28px, 6vw, 54px);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.28), transparent 42%),
    linear-gradient(145deg, #2fd17b, #078f5f 78%);
  color: #ffffff;
  box-shadow:
    0 28px 90px var(--shadow),
    inset 0 1px 0 rgba(255, 255, 255, 0.22);
}

body[data-theme="night"] .clock-card {
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.11), transparent 42%),
    linear-gradient(145deg, #0b3a2a, #061b15 82%);
}

.kicker,
.eyebrow {
  margin: 0;
  font-size: clamp(0.85rem, 2vw, 1.05rem);
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.kicker {
  color: rgba(255, 255, 255, 0.82);
}

.live-clock {
  display: block;
  margin-top: clamp(12px, 2vw, 20px);
  font-family:
    "SF Mono",
    "Roboto Mono",
    "Menlo",
    ui-monospace,
    monospace;
  font-size: clamp(2.7rem, 10.6vw, 8.2rem);
  font-weight: 800;
  line-height: 0.92;
  letter-spacing: 0;
  white-space: nowrap;
  font-variant-numeric: slashed-zero tabular-nums;
  font-feature-settings: "zero" 1, "tnum" 1;
  text-shadow: 0 12px 38px rgba(0, 0, 0, 0.16);
}

.clock-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(18px, 3vw, 28px);
}

.clock-meta span {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
  color: rgba(255, 255, 255, 0.88);
  font-size: clamp(0.85rem, 2vw, 1rem);
  font-weight: 800;
  backdrop-filter: blur(16px);
}

.copy-block {
  max-width: 820px;
  padding-bottom: clamp(4px, 3vw, 20px);
}

.eyebrow {
  color: var(--green-deep);
}

body[data-theme="night"] .eyebrow {
  color: var(--green);
}

h1 {
  max-width: 14ch;
  margin: 10px 0 0;
  font-size: clamp(2.6rem, 8vw, 6.7rem);
  font-weight: 900;
  line-height: 0.96;
  letter-spacing: 0;
}

.lede {
  max-width: 650px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2.2vw, 1.35rem);
  font-weight: 700;
  line-height: 1.45;
}

@media (prefers-color-scheme: dark) {
  body:not([data-theme]) {
    color-scheme: dark;
    --bg: #08110d;
    --surface: rgba(18, 30, 24, 0.72);
    --surface-strong: rgba(14, 24, 19, 0.9);
    --ink: #edf7ef;
    --muted: #9eaea4;
    --line: rgba(237, 247, 239, 0.12);
    --green: #56d98f;
    --green-deep: #11a968;
    --glow: rgba(86, 217, 143, 0.18);
    --shadow: rgba(0, 0, 0, 0.36);
  }
}

@media (max-width: 720px) {
  .page-shell {
    width: min(100% - 28px, 560px);
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .domain-tabs {
    width: 100%;
  }

  .domain-tab {
    flex: 1;
  }

  .clock-card {
    border-radius: 28px;
  }

  .live-clock {
    font-size: clamp(2.05rem, 12vw, 3.7rem);
  }

  h1 {
    max-width: 12ch;
  }
}