/* URANUS : Blue Current — shared theme */
:root {
  --bg: #060a1a;
  --panel: rgba(12, 20, 48, .84);
  --panel-2: rgba(20, 32, 72, .72);
  --line: rgba(96, 165, 250, .28);
  --blue: #3b82f6;
  --cyan: #22d3ee;
  --elec: #7dd3fc;
  --gold: #fbbf24;
  --pink: #f472b6;
  --green: #34d399;
  --red: #f43f5e;
  --text: #e8f0ff;
  --muted: #94a3c8;
  --radius: 18px;
  --font: 'Kanit', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-num: 'Orbitron', 'Kanit', system-ui, sans-serif;
  --glow: 0 0 18px rgba(34, 211, 238, .35), 0 0 42px rgba(59, 130, 246, .18);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-weight: 300;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}
/* starfield: three layers of tiny gradients, no images */
body::before, body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
}
body::before {
  background:
    radial-gradient(1px 1px at 12% 18%, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 72% 12%, #cfe3ff 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 38% 66%, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 86% 54%, #bfe9ff 50%, transparent 51%),
    radial-gradient(1px 1px at 22% 86%, #fff 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 58% 34%, #e0f2ff 50%, transparent 51%),
    radial-gradient(1px 1px at 92% 88%, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 4% 48%, #cfe3ff 50%, transparent 51%);
  background-size: 420px 420px;
  opacity: .7;
  animation: twinkle 6s ease-in-out infinite alternate;
}
body::after {
  background:
    radial-gradient(ellipse 70% 50% at 80% -10%, rgba(59, 130, 246, .22), transparent 70%),
    radial-gradient(ellipse 60% 45% at -10% 110%, rgba(34, 211, 238, .14), transparent 70%),
    radial-gradient(1px 1px at 30% 40%, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 65% 75%, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 85% 25%, #fff 50%, transparent 51%);
  background-size: 100% 100%, 100% 100%, 260px 260px, 260px 260px, 260px 260px;
}
@keyframes twinkle { from { opacity: .45; } to { opacity: .85; } }

h1, h2, h3 { font-weight: 600; line-height: 1.25; margin: 0 0 .4em; }
a { color: var(--elec); }
.num, .orb { font-family: var(--font-num); letter-spacing: .02em; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.center { text-align: center; }
.hidden { display: none !important; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.grow { flex: 1; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 16px; }
.narrow { max-width: 520px; margin: 0 auto; padding: 16px; }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, .35);
}
.panel + .panel { margin-top: 14px; }
.panel h2 { font-size: 1.1rem; }
.kicker {
  font-family: var(--font-num);
  font-size: .72rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--cyan);
}

/* buttons */
.btn {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--text);
  font: inherit;
  font-weight: 400;
  padding: 10px 16px;
  border-radius: 12px;
  cursor: pointer;
  min-height: 44px;
  transition: transform .12s, box-shadow .2s, background .2s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.btn:hover { box-shadow: var(--glow); }
.btn:active { transform: scale(.97); }
.btn:disabled { opacity: .5; cursor: default; box-shadow: none; }
.btn.primary {
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  border-color: transparent;
  color: #031024;
  font-weight: 600;
}
.btn.gold { background: linear-gradient(135deg, #f59e0b, var(--gold)); color: #1a1000; border-color: transparent; font-weight: 600; }
.btn.danger { border-color: rgba(244, 63, 94, .5); color: #fecdd3; }
.btn.ghost { background: transparent; }
.btn.sm { min-height: 34px; padding: 6px 12px; font-size: .9rem; }
.btn.block { width: 100%; }
.btn.on { border-color: var(--cyan); box-shadow: inset 0 0 0 1px var(--cyan); color: var(--cyan); }

/* forms */
input, select, textarea {
  font: inherit;
  color: var(--text);
  background: rgba(6, 10, 26, .7);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 12px;
  min-height: 44px;
  width: 100%;
}
textarea { min-height: 90px; resize: vertical; }
input:focus, select:focus, textarea:focus, .btn:focus-visible, .chip:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}
label { display: block; font-size: .9rem; color: var(--muted); margin: 10px 0 4px; }

.chip {
  appearance: none;
  border: 1px solid var(--line);
  background: rgba(6, 10, 26, .6);
  color: var(--text);
  font: inherit;
  font-size: .95rem;
  padding: 8px 14px;
  border-radius: 999px;
  cursor: pointer;
  min-height: 42px;
}
.chip[aria-pressed='true'], .chip.on {
  background: linear-gradient(135deg, rgba(59, 130, 246, .5), rgba(34, 211, 238, .45));
  border-color: var(--cyan);
  color: #fff;
}
.chips { display: flex; flex-wrap: wrap; gap: 8px; }

.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 10px 18px;
  border-radius: 12px;
  z-index: 99;
  max-width: calc(100% - 32px);
  box-shadow: var(--glow);
}
.toast.err { border-color: var(--red); }

.bar { height: 10px; border-radius: 99px; background: rgba(148, 163, 200, .18); overflow: hidden; }
.bar > i { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--blue), var(--cyan)); transition: width .6s; }
.bar.warn > i { background: linear-gradient(90deg, var(--gold), #f97316); }
.bar.full > i { background: linear-gradient(90deg, #f97316, var(--red)); }

table { width: 100%; border-collapse: collapse; }
th, td { padding: 8px 10px; border-bottom: 1px solid rgba(96, 165, 250, .14); text-align: left; vertical-align: top; }
th { font-weight: 400; color: var(--muted); font-size: .85rem; }
td.n, th.n { text-align: right; font-family: var(--font-num); font-size: .9rem; }

/* planet */
.planet {
  --c: var(--blue);
  position: relative;
  border-radius: 50%;
  background:
    radial-gradient(circle at 32% 28%, rgba(255, 255, 255, .85), transparent 22%),
    radial-gradient(circle at 40% 38%, var(--c), color-mix(in srgb, var(--c) 35%, #050816) 72%);
  box-shadow: 0 0 24px color-mix(in srgb, var(--c) 60%, transparent), inset -8px -10px 22px rgba(0, 0, 0, .45);
  display: grid;
  place-items: center;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}