:root {
  color-scheme: dark;
  --abyss: #020811;
  --panel: rgba(3, 17, 29, 0.88);
  --line: rgba(77, 225, 255, 0.24);
  --cyan: #52e9ff;
  --warm: #ee9a63;
  --muted: #78909b;
  --ink: #eaf7f7;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html, body { min-height: 100%; }

body {
  margin: 0;
  padding: 32px 22px 24px;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 50% -10%, rgba(21, 114, 145, 0.22), transparent 42%),
    linear-gradient(180deg, #030a13 0%, var(--abyss) 55%, #01050a 100%);
  color: var(--ink);
}

.ambient {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.45;
  background-image:
    linear-gradient(rgba(68, 215, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(68, 215, 255, 0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, black, transparent 88%);
}

.shell {
  position: relative;
  width: min(1440px, 100%);
  margin: 0 auto;
}

.masthead, .footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.masthead { margin: 0 2px 22px; }

.eyebrow {
  margin: 0 0 8px;
  color: var(--cyan);
  font: 600 11px/1.2 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0.2em;
}

h1 {
  margin: 0;
  font-size: clamp(24px, 3vw, 44px);
  font-weight: 320;
  letter-spacing: -0.035em;
}

h1 em {
  margin-left: 0.28em;
  color: #a8b8bc;
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 400;
}

.evidence-link, #unity-fullscreen-button, .web-controls button {
  border: 1px solid var(--line);
  background: rgba(3, 22, 34, 0.72);
  color: #bdebf1;
  text-decoration: none;
  text-transform: uppercase;
  font: 600 10px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0.12em;
  padding: 12px 15px;
  transition: border-color 160ms ease, color 160ms ease, background 160ms ease;
}

.evidence-link:hover, #unity-fullscreen-button:hover, .web-controls button:hover:not(:disabled) {
  border-color: rgba(82, 233, 255, 0.72);
  background: rgba(7, 44, 59, 0.88);
  color: white;
}

.game-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border: 1px solid rgba(82, 233, 255, 0.32);
  background: #00101a;
  box-shadow: 0 34px 100px rgba(0, 0, 0, 0.58), inset 0 0 70px rgba(17, 173, 214, 0.045);
}

#unity-canvas {
  display: block;
  width: 100%;
  height: 100%;
  background: #00101a;
  outline: none;
}

#unity-loading-bar {
  position: absolute;
  inset: 0;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle, rgba(6, 50, 69, 0.92), rgba(1, 9, 16, 0.98) 58%);
}

.load-kicker {
  color: var(--cyan);
  font: 600 10px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0.25em;
}

.load-title {
  margin-top: 18px;
  font: italic 42px/1 Georgia, "Times New Roman", serif;
}

#unity-progress-bar-empty {
  width: min(320px, 55%);
  height: 2px;
  margin-top: 36px;
  background: rgba(82, 233, 255, 0.14);
}

#unity-progress-bar-full {
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--warm), var(--cyan));
  box-shadow: 0 0 18px rgba(82, 233, 255, 0.65);
}

#unity-progress-label {
  margin-top: 12px;
  color: var(--muted);
  font: 500 10px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
}

#unity-warning {
  position: absolute;
  top: 18px;
  left: 50%;
  width: min(620px, calc(100% - 36px));
  transform: translateX(-50%);
  z-index: 4;
}

.warning {
  margin-bottom: 8px;
  padding: 12px 14px;
  border: 1px solid rgba(238, 154, 99, 0.55);
  background: rgba(42, 17, 12, 0.94);
  color: #ffd9bf;
  font-size: 13px;
}

.warning-error { border-color: rgba(255, 85, 95, 0.75); }

.footer {
  min-height: 54px;
  padding: 10px 2px 0;
  color: #6e858e;
  text-transform: uppercase;
  font: 500 10px/1.35 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0.1em;
}

.web-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 50px;
  padding: 10px 2px 0;
}

.web-controls > span {
  margin-right: 4px;
  color: #6e858e;
  text-transform: uppercase;
  font: 600 10px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0.12em;
}

.web-controls button {
  cursor: pointer;
  padding: 9px 12px;
}

.web-controls button:disabled {
  cursor: wait;
  opacity: 0.36;
}

#unity-fullscreen-button { cursor: pointer; }

noscript { display: block; padding: 18px 0; color: var(--warm); }

@media (max-width: 760px) {
  body { padding: 14px 10px; }
  .masthead { align-items: flex-end; margin-bottom: 14px; }
  .eyebrow { letter-spacing: 0.13em; }
  h1 em { display: block; margin: 3px 0 0; }
  .evidence-link { padding: 10px; }
  .footer-note { display: none; }
  .game-frame { aspect-ratio: 4 / 3; }
  .web-controls { flex-wrap: wrap; }
}

@media (max-width: 520px) {
  .masthead { display: block; }
  .evidence-link { display: inline-block; margin-top: 12px; }
  .footer { align-items: flex-start; }
  .footer > span:first-child { max-width: 58%; }
}

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