:root {
  --ink: #fff1de;
  --ink-soft: rgba(255, 241, 222, 0.62);
  --ink-faint: rgba(255, 241, 222, 0.34);
  --night: #05060d;
  --line: rgba(255, 241, 222, 0.16);
  --panel: rgba(255, 241, 222, 0.07);
  --tint: 90, 100, 210;
}

* { box-sizing: border-box; }

html, body { height: 100%; margin: 0; }

body {
  background: var(--night);
  color: var(--ink);
  font-family: ui-serif, 'Iowan Old Style', 'Palatino Linotype', Palatino, Georgia, serif;
  -webkit-text-size-adjust: 100%;
  overflow: hidden;
  overscroll-behavior: none;
}

[hidden] { display: none !important; }

/* Slow tinted glow behind everything; the colour follows the time of day. */
.bg {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(70% 55% at 50% 42%, rgba(var(--tint), 0.16), transparent 70%),
    radial-gradient(120% 90% at 50% 120%, rgba(var(--tint), 0.07), transparent 60%),
    var(--night);
  transition: background 3s linear;
}

.app {
  position: relative;
  z-index: 2;
  height: 100vh;
  height: 100dvh;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto auto;
  padding: max(14px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) max(14px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
  max-width: 980px;
  margin: 0 auto;
}

.top {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  min-height: 44px;
}

.chip {
  font: inherit;
  font-size: 0.85rem;
  color: var(--ink-soft);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0 14px;
  min-height: 40px;
  cursor: pointer;
}
.chip:hover, .chip:focus-visible { color: var(--ink); border-color: var(--ink-faint); }

.history {
  font: inherit;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  height: 44px;
  min-width: 44px;
  padding: 0 13px;
  justify-content: center;
  color: var(--ink-soft);
  background: rgba(255, 241, 222, 0.05);
  border: 1px solid var(--line);
  border-radius: 999px;
  cursor: pointer;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  transition: color 0.2s, border-color 0.2s, box-shadow 0.3s, background 0.2s;
}
.history:hover, .history:focus-visible {
  color: var(--ink);
  background: rgba(255, 241, 222, 0.09);
  border-color: rgba(var(--tint), 0.7);
  box-shadow: 0 0 22px rgba(var(--tint), 0.35);
}
.history svg { flex: none; }
@media (max-width: 520px) {
  .history { padding: 0; width: 44px; }
  .history span { display: none; }
}

.stage {
  position: relative;
  min-height: 0;
  transition: opacity 1.6s ease;
}
.stage.fading { opacity: 0; }

.stage canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}
#live { pointer-events: none; }

/* Dust, rain, snow and fog cover the whole screen so their edges never show. */
#fx {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.status {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  margin: 0;
  color: var(--ink-soft);
  font-style: italic;
  animation: breathe 2.6s ease-in-out infinite;
}

@keyframes breathe { 50% { opacity: 0.35; } }

.info { text-align: center; padding: 6px 0 10px; }

.date {
  margin: 0;
  font-weight: 400;
  font-size: clamp(1.35rem, 5vw, 1.9rem);
  letter-spacing: 0.01em;
}

.meta {
  margin: 4px 0 0;
  min-height: 1.4em;
  color: var(--ink-soft);
  font-size: 0.92rem;
  font-variant-numeric: tabular-nums;
}

.controls {
  display: grid;
  grid-template-columns: 48px 48px minmax(0, 1fr) 48px;
  align-items: center;
  gap: 6px;
  padding-top: 4px;
}

.icon {
  font: inherit;
  font-size: 1.15rem;
  line-height: 1;
  width: 48px;
  height: 48px;
  color: var(--ink-soft);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 50%;
  cursor: pointer;
  display: grid;
  place-items: center;
}
.icon:hover:not(:disabled), .icon:focus-visible { color: var(--ink); background: var(--panel); }
.icon:disabled { opacity: 0.22; cursor: default; }
.icon.play { border-color: var(--line); font-size: 0.95rem; }

.slider { position: relative; padding: 0 4px; }
.slider output {
  position: absolute;
  left: 0; right: 0; top: 100%;
  margin-top: -3px;
  text-align: center;
  font-size: 0.72rem;
  color: var(--ink-faint);
  font-variant-numeric: tabular-nums;
  pointer-events: none;
}

input[type='range'] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 48px;
  margin: 0;
  background: transparent;
  cursor: pointer;
  touch-action: pan-y;
}
input[type='range']::-webkit-slider-runnable-track {
  height: 3px; border-radius: 2px;
  background: linear-gradient(90deg, rgba(var(--tint), 0.55), var(--line));
}
input[type='range']::-moz-range-track { height: 3px; border-radius: 2px; background: var(--line); }
input[type='range']::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px; height: 22px; margin-top: -9.5px;
  border-radius: 50%;
  background: var(--ink);
  border: 0;
  box-shadow: 0 0 14px 2px rgba(var(--tint), 0.7);
}
input[type='range']::-moz-range-thumb {
  width: 22px; height: 22px; border-radius: 50%; border: 0;
  background: var(--ink);
  box-shadow: 0 0 14px 2px rgba(var(--tint), 0.7);
}

:focus-visible { outline: 2px solid rgba(var(--tint), 0.9); outline-offset: 2px; }

/* ----- diary of past days ----- */

.diary {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: end center;
  background: rgba(3, 4, 9, 0.72);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 10;
}

.diary-card {
  width: min(720px, 100%);
  max-height: 86dvh;
  overflow: auto;
  background: #0b0d1a;
  border: 1px solid var(--line);
  border-radius: 20px 20px 0 0;
  padding: 16px 16px max(20px, env(safe-area-inset-bottom));
}

@media (min-width: 760px) {
  .diary { place-items: center; }
  .diary-card { border-radius: 20px; }
}

.diary-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.diary-head h2 { margin: 0; font-weight: 400; font-size: 1.2rem; }

.jump {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 10px;
  align-items: center;
  margin-bottom: 18px;
  padding: 12px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
}
.jump label { grid-column: 1 / -1; font-size: 0.82rem; color: var(--ink-soft); }
.jump input {
  font: inherit;
  min-height: 40px;
  min-width: 0;
  color: var(--ink);
  color-scheme: dark;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0 10px;
}
.recent { margin: 0 0 10px; font-weight: 400; font-size: 0.85rem; color: var(--ink-soft); }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(104px, 1fr));
  gap: 12px;
}

.thumb {
  display: grid;
  gap: 6px;
  text-align: center;
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 0.8rem;
}
.thumb canvas {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 14px;
  background: #070912;
  border: 1px solid var(--line);
}
.thumb:hover, .thumb:focus-visible { color: var(--ink); }
.thumb:hover canvas { border-color: var(--ink-faint); }

.empty { grid-column: 1 / -1; color: var(--ink-soft); font-style: italic; margin: 8px 0; }

.nojs { position: fixed; inset: 0; display: grid; place-items: center; margin: 0; padding: 24px; text-align: center; color: var(--ink-soft); }

@media (max-height: 560px) and (orientation: landscape) {
  .app { grid-template-rows: auto minmax(0, 1fr) auto; }
  .info { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .status { animation: none; }
  .bg, .stage { transition: none; }
}