@font-face {
  font-family: "League Spartan";
  src: url("league-spartan-thin.woff") format("woff");
  font-weight: 100 300;
  font-display: swap;
}

@font-face {
  font-family: "League Spartan";
  src: url("league-spartan-regular.woff") format("woff");
  font-weight: 400 700;
  font-display: swap;
}

:root {
  --bg: #05070d;
  --surface: rgba(10, 14, 26, 0.78);
  --line: rgba(255, 255, 255, 0.14);
  --line-strong: rgba(255, 255, 255, 0.7);
  --text: #eef1f8;
  --muted: #8a93a8;
  --accent: #ffb400;
  --glow: #3d7bff;
  --display: "League Spartan", system-ui, sans-serif;
  --body: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color-scheme: dark;
}

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

html,
body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: var(--body);
  -webkit-font-smoothing: antialiased;
}

#unity-canvas {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  display: block;
  background: var(--bg);
  outline: none;
}

#loader {
  position: fixed;
  inset: 0;
  z-index: 10;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: radial-gradient(120% 80% at 50% 120%, #0b1a3d 0%, var(--bg) 60%);
  transition: opacity 0.8s ease, visibility 0.8s;
}

body.running #loader {
  opacity: 0;
  visibility: hidden;
}

#stars {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.horizon {
  position: absolute;
  left: 50%;
  top: 72vh;
  width: 240vmax;
  height: 240vmax;
  transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(circle at 50% 0%, #10224d 0%, #050b1c 18%, #02040a 40%);
  box-shadow:
    0 0 0 1px rgba(120, 170, 255, 0.35),
    0 -6px 40px rgba(61, 123, 255, 0.45),
    0 -30px 160px rgba(61, 123, 255, 0.25);
  animation: rise 2.4s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}

@keyframes rise {
  from { transform: translate(-50%, 8vmax); opacity: 0; }
  to { transform: translateX(-50%); opacity: 1; }
}

.card {
  position: relative;
  width: min(440px, calc(100vw - 32px));
  padding: 40px 36px 30px;
  text-align: center;
  animation: appear 1.2s 0.2s ease both;
}

.card::before,
.card::after {
  content: "";
  position: absolute;
  width: 22px;
  height: 22px;
  border: 1px solid var(--line-strong);
}

.card::before {
  top: 0;
  left: 0;
  border-right: 0;
  border-bottom: 0;
}

.card::after {
  right: 0;
  bottom: 0;
  border-left: 0;
  border-top: 0;
}

@keyframes appear {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: none; }
}

.orbits {
  width: 156px;
  height: 156px;
  margin: 0 auto 18px;
  display: block;
  overflow: visible;
}

.ring ellipse {
  fill: none;
  stroke: rgba(255, 255, 255, 0.22);
  stroke-width: 0.6;
}

.ring-a { transform: rotate(-18deg); }
.ring-b { transform: rotate(32deg); }
.ring-c { transform: rotate(8deg); }

.sat { fill: #fff; }
.sat-accent { fill: var(--accent); filter: drop-shadow(0 0 3px var(--accent)); }

.wordmark {
  margin: 0;
  font-family: var(--display);
  font-weight: 100;
  font-size: clamp(42px, 9vw, 64px);
  line-height: 1;
  letter-spacing: 0.32em;
  margin-right: -0.32em;
  text-transform: uppercase;
}

.tagline {
  margin: 12px 0 34px;
  font-family: var(--display);
  font-weight: 400;
  font-size: 15px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.progress {
  height: 2px;
  background: var(--line);
  overflow: hidden;
}

#progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #fff 0%, var(--accent) 100%);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
  box-shadow: 0 0 12px rgba(255, 180, 0, 0.6);
}

.progress-meta {
  display: flex;
  justify-content: space-between;
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.hint {
  margin: 26px 0 0;
  font-size: 12px;
  color: rgba(138, 147, 168, 0.75);
}

#loader.failed #progress-fill {
  background: #ff5a5a;
  box-shadow: none;
}

#loader.failed #stage {
  color: #ff8a8a;
}

#loader.failed .hint {
  color: var(--text);
}

.fatal {
  position: absolute;
  bottom: 24px;
  color: var(--text);
}

#toolbar {
  position: fixed;
  top: max(14px, env(safe-area-inset-top));
  right: max(14px, env(safe-area-inset-right));
  z-index: 5;
  display: flex;
  gap: 8px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

body.running #toolbar.awake,
body.running #toolbar:hover,
body.running #toolbar:focus-within {
  opacity: 1;
  pointer-events: auto;
}

#toolbar button,
.close {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  padding: 0;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}

#toolbar button:hover,
#toolbar button:focus-visible,
.close:hover,
.close:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
  outline: none;
}

#toolbar svg,
.close svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

dialog#about {
  width: min(460px, calc(100vw - 32px));
  max-height: calc(100dvh - 48px);
  padding: 0;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6);
}

dialog#about::backdrop {
  background: rgba(2, 4, 10, 0.45);
}

dialog#about[open] {
  animation: appear 0.3s ease both;
}

.dialog-body {
  padding: 22px 24px 24px;
  font-size: 14px;
  line-height: 1.55;
}

.dialog-body header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.dialog-body h2 {
  margin: 0;
  font-family: var(--display);
  font-weight: 100;
  font-size: 28px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.dialog-body h3 {
  margin: 22px 0 8px;
  font-family: var(--display);
  font-weight: 400;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

.dialog-body p {
  margin: 12px 0 0;
  color: #c9cfdc;
}

.keys {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 16px;
  margin: 0;
}

.keys dt {
  white-space: nowrap;
  color: var(--text);
}

.keys dd {
  margin: 0;
  color: var(--muted);
}

kbd {
  display: inline-block;
  min-width: 22px;
  padding: 1px 6px;
  margin-right: 3px;
  font: 12px/18px var(--body);
  text-align: center;
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.04);
}

.sources {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}

.sources li {
  margin: 3px 0;
}

.dialog-body a {
  color: var(--text);
  text-decoration-color: var(--accent);
  text-underline-offset: 3px;
}

.dialog-body a:hover {
  color: var(--accent);
}

.credit {
  font-size: 12px;
  color: var(--muted) !important;
  margin-top: 22px !important;
}

#attribution {
  position: fixed;
  left: max(14px, env(safe-area-inset-left));
  top: max(12px, env(safe-area-inset-top));
  z-index: 5;
  margin: 0;
  font-size: 11px;
  color: rgba(238, 241, 248, 0.45);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
  opacity: 0;
  transition: opacity 0.8s ease;
}

body.running #attribution {
  opacity: 1;
}

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

#attribution a:hover {
  color: var(--text);
  text-decoration: underline;
}

details summary {
  cursor: pointer;
}

.fine {
  font-size: 11px;
  line-height: 1.5;
  color: var(--muted) !important;
}

#diagnostics-icon {
  position: fixed;
  bottom: 12px;
  right: 12px;
  z-index: 5;
}

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