:root {
  --ink: #e7eef6;
  --muted: #93a3b5;
  --dim: #6d7d90;
  --line: rgba(231, 238, 246, 0.14);
  --amber: #ffb020;
  --bg: rgba(7, 10, 16, 0.72);
  color-scheme: dark;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: #070a10;
  color: var(--ink);
  font-family: Outfit, "Avenir Next", "Segoe UI", sans-serif;
  font-weight: 340;
}

button, input { font: inherit; color: inherit; }

#viewport { position: fixed; inset: 0; }
#viewport canvas { display: block; }

.vignette {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(to top, rgba(7, 10, 16, 0.88), rgba(7, 10, 16, 0.2) 18%, transparent 32%),
    linear-gradient(to bottom, rgba(7, 10, 16, 0.55), transparent 22%);
}

#labels { position: fixed; inset: 0; pointer-events: none; overflow: hidden; }
.label {
  position: absolute;
  transform: translate(-50%, calc(-100% - 8px));
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.04em;
  color: #f4f7fb;
  text-shadow: 0 1px 2px #000, 0 0 12px #000;
  white-space: nowrap;
}
.label.ship { color: var(--amber); }

.top {
  position: fixed;
  top: 22px;
  left: 24px;
  width: min(440px, calc(100vw - 48px));
  pointer-events: none;
}
.kicker {
  margin: 0 0 6px;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
}
h1 {
  margin: 0;
  font-family: Newsreader, Georgia, serif;
  font-weight: 460;
  font-size: 42px;
  letter-spacing: -0.03em;
  line-height: 0.95;
}
.deck {
  margin: 12px 0 0;
  max-width: 40ch;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.45;
}

.modes {
  position: fixed;
  top: 22px;
  right: 24px;
  display: flex;
  gap: 6px;
  padding: 4px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 999px;
  backdrop-filter: blur(10px);
}
.modes button, .speeds button, #play, #true-scale {
  background: transparent;
  border: 0;
  border-radius: 999px;
  padding: 8px 12px;
  cursor: pointer;
}
.modes button.on, .speeds button.on {
  background: #f4f7fb;
  color: #12171f;
}

.readout {
  position: fixed;
  left: 24px;
  bottom: 118px;
  width: min(340px, calc(100vw - 48px));
  padding: 14px 16px 12px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 16px;
  backdrop-filter: blur(12px);
}
.clock {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
}
#met { font-size: 28px; letter-spacing: -0.04em; }
#utc { color: var(--dim); font-size: 12px; }
.phase {
  margin: 2px 0 10px;
  color: var(--amber);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
dl {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 16px;
  margin: 0;
}
dt {
  color: var(--dim);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
dd {
  margin: 1px 0 0;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 14px;
}
.note {
  margin: 12px 0 8px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.4;
}
.check {
  display: flex;
  gap: 8px;
  align-items: center;
  color: var(--muted);
  font-size: 13px;
  margin-top: 4px;
  cursor: pointer;
}

.scale {
  position: fixed;
  right: 24px;
  bottom: 118px;
  width: 220px;
  padding: 12px 14px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 16px;
  backdrop-filter: blur(12px);
}
.scale label {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.04em;
}
.scale input { width: 100%; margin: 8px 0; }
#true-scale {
  padding: 4px 0;
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.timeline {
  position: fixed;
  left: 16px;
  right: 16px;
  bottom: 14px;
  display: grid;
  grid-template-columns: auto auto 1fr;
  gap: 10px;
  align-items: center;
  padding: 10px 12px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 16px;
  backdrop-filter: blur(12px);
}
#play { min-width: 72px; background: #f4f7fb; color: #12171f; }
.speeds { display: flex; gap: 2px; }
.speeds button { padding: 6px 8px; color: var(--muted); }
.scrub { position: relative; }
#scrub { width: 100%; }
#ticks { position: relative; height: 16px; margin-top: 2px; }
#ticks button {
  position: absolute;
  top: 0;
  transform: translateX(-50%);
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--dim);
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 10px;
  cursor: pointer;
  white-space: nowrap;
}
#ticks button:hover { color: var(--ink); }

.fine {
  margin: 8px 0 0;
  color: var(--dim);
  font-size: 11.5px;
  line-height: 1.4;
}

input[type="range"] {
  accent-color: var(--amber);
  height: 18px;
}

@media (max-width: 800px) {
  h1 { font-size: 32px; }
  .modes { top: auto; bottom: 168px; right: 12px; }
  .readout { bottom: 210px; }
  .scale, .fine { display: none; }
  .timeline { grid-template-columns: auto 1fr; }
  .speeds { display: none; }
}