:root {
  --bg: #0b0b0a;
  --ink: #ece8df;
  --muted: #6f6b64;
  --serif: "Cormorant Garamond", Georgia, serif;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--ink);
  overflow-x: hidden;
}

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

body {
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom)
    env(safe-area-inset-left);
  -webkit-font-smoothing: antialiased;
}

.page {
  width: min(920px, calc(100% - 2rem));
  max-width: 100%;
  margin-inline: auto;
  text-align: center;
  padding: 2rem 0;
}

h1 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(1.35rem, 2.6vw + 0.8rem, 1.95rem);
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  text-align: center;
  padding-left: 0.2em;
}

.subtitle {
  margin: 0.55rem 0 0;
  font-family: var(--serif);
  font-size: clamp(0.58rem, 0.65vw + 0.42rem, 0.7rem);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  text-align: center;
  padding-left: 0.14em;
}

.subtitle:empty {
  display: none;
}

.status {
  margin: 1.6rem 0 0;
  min-height: 1em;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.status:empty {
  display: none;
}

.countdown {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  flex-wrap: nowrap;
  gap: clamp(0.28rem, 2vw, 0.55rem);
  width: 100%;
  max-width: 100%;
  margin-top: 2.75rem;
  font-size: clamp(1.55rem, 8.6vw, 4.4rem);
}

.segment {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.38rem;
}

.tag {
  font-family: var(--mono);
  font-size: 0.6rem;
  font-weight: 400;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  line-height: 1;
}

.value,
.colon {
  font-family: var(--mono);
  font-size: 1em;
  font-weight: 400;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.colon {
  color: var(--muted);
  font-size: 0.82em;
  padding-bottom: 0.06em;
}

.mode-switch {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.75rem;
  margin-top: 3rem;
}

.mode-switch button {
  appearance: none;
  margin: 0;
  padding: 0.75rem 0.35rem;
  border: 0;
  background: none;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  cursor: pointer;
  min-height: 44px;
  -webkit-tap-highlight-color: transparent;
}

.mode-switch button[aria-selected="true"] {
  color: var(--ink);
}

.mode-switch button:focus-visible {
  outline: 1px solid var(--muted);
  outline-offset: 6px;
}

.unit-switch {
  margin-top: 0.15rem;
  gap: 0.85rem 1.35rem;
  flex-wrap: wrap;
}

.unit-switch[hidden] {
  display: none;
}

.countdown[data-segments="6"] {
  font-size: clamp(1.05rem, 5.2vw, 2.85rem);
}

.countdown[data-segments="5"] {
  font-size: clamp(1.15rem, 6vw, 3.2rem);
}

.countdown[data-segments="4"] {
  font-size: clamp(1.3rem, 7vw, 3.6rem);
}

.age {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.45rem 1.15rem;
  margin: 2.5rem 0 0;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  line-height: 1.4;
}

.age span {
  white-space: nowrap;
}

@media (max-width: 720px) {
  .page {
    width: min(36rem, calc(100% - 1.5rem));
    padding: 1.25rem 0 1.75rem;
  }

  h1 {
    letter-spacing: 0.16em;
    padding-left: 0.16em;
    font-size: clamp(1.3rem, 5.4vw, 1.75rem);
  }

  .subtitle {
    margin-top: 0.45rem;
    font-size: 0.58rem;
    letter-spacing: 0.12em;
    padding-left: 0.12em;
  }

  .countdown {
    margin-top: 2.1rem;
    font-size: clamp(1.55rem, 9.2vw, 2.65rem);
  }

  .segment {
    gap: 0.4rem;
  }

  .tag {
    font-size: 0.5rem;
    letter-spacing: 0.14em;
  }

  .mode-switch {
    gap: clamp(1.25rem, 8vw, 2.25rem);
    margin-top: 2.15rem;
  }

  .unit-switch {
    margin-top: 0;
    gap: 0.35rem 1rem;
  }

  .countdown[data-segments="6"] {
    font-size: clamp(0.92rem, 4.5vw, 1.45rem);
  }

  .countdown[data-segments="5"] {
    font-size: clamp(1.05rem, 5.4vw, 1.7rem);
  }

  .countdown[data-segments="4"] {
    font-size: clamp(1.2rem, 6.4vw, 2.1rem);
  }

  .age {
    margin-top: 1.85rem;
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    gap: 0.45rem 1.15rem;
  }
}

@media (max-width: 380px) {
  .countdown {
    font-size: clamp(1.35rem, 8.4vw, 1.85rem);
  }

  .mode-switch {
    gap: 1.1rem;
  }
}

@media (max-height: 500px) {
  .page {
    padding: 0.85rem 0 1rem;
  }

  .countdown {
    margin-top: 1.25rem;
  }

  .mode-switch {
    margin-top: 1.15rem;
  }

  .unit-switch {
    margin-top: 0;
  }

  .age {
    margin-top: 1rem;
  }
}