:root {
  --ink: #17202a;
  --muted: #5d6d7e;
  --gold: #ffc83d;
  --mint: #7ee6b8;
  --bg: #fff7df;
  --panel: rgba(255,255,255,.9);
  --shadow: 0 24px 60px rgba(74, 47, 0, .18);
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  color: var(--ink);
  font-family: Inter, Arial, sans-serif;
  background:
    radial-gradient(circle at 15% 10%, rgba(255,200,61,.5), transparent 28%),
    radial-gradient(circle at 85% 16%, rgba(126,230,184,.5), transparent 28%),
    linear-gradient(135deg, #fff8dd, #ffe8ef 52%, #e5f3ff);
}

.game-shell {
  width: min(1180px, calc(100% - 28px));
  min-height: 100vh;
  margin: 0 auto;
  padding: 22px 0 28px;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 14px;
}

.game-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 18px;
  background: var(--panel);
  border: 3px solid rgba(255,255,255,.75);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.back-link {
  color: var(--ink);
  background: white;
  border: 2px solid rgba(23,32,42,.1);
  border-radius: 999px;
  padding: 10px 14px;
  text-decoration: none;
  font-weight: 900;
}

.eyebrow {
  margin: 0 0 4px;
  color: #d99000;
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: .78rem;
  font-weight: 900;
  text-align: right;
}

h1 {
  margin: 0;
  font-family: "Baloo 2", Inter, Arial, sans-serif;
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1;
}

.game-stage {
  min-height: 0;
  display: grid;
  place-items: center;
  padding: 16px;
  background: rgba(255,255,255,.78);
  border: 3px solid rgba(255,255,255,.75);
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.trail-layout {
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(220px, 300px) 1fr;
  gap: 14px;
  align-items: stretch;
}

.dino-guide {
  display: grid;
  grid-template-rows: minmax(180px, 1fr) auto;
  overflow: hidden;
  background: var(--panel);
  border: 3px solid rgba(255,255,255,.75);
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.dino-guide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 25% 68%;
  background: #a8dcff;
}

.dino-guide div {
  padding: 16px;
  background: rgba(255,253,244,.96);
}

.dino-guide .eyebrow { text-align: left; }

.dino-guide h2 {
  margin: 0;
  font-family: "Baloo 2", Inter, Arial, sans-serif;
  font-size: clamp(1.45rem, 2.6vw, 2rem);
  line-height: 1;
}

.dino-guide p:not(.eyebrow) {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 15px;
  font-weight: 800;
  line-height: 1.35;
}

#unity-container {
  position: relative;
  width: min(100%, calc((100vh - 180px) * 1.6));
  aspect-ratio: 16 / 10;
  min-height: 320px;
  max-height: calc(100vh - 180px);
  background: #231f20;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 16px 34px rgba(23,32,42,.18);
}

#unity-container.unity-mobile {
  width: 100%;
  max-height: calc(100vh - 150px);
  min-height: 360px;
}

#unity-canvas {
  width: 100%;
  height: 100%;
  display: block;
  background: #231f20;
}

.unity-mobile #unity-canvas { width: 100%; height: 100%; }

#unity-loading-bar {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  display: none;
}

#unity-logo { width: 154px; height: 130px; background: url('unity-logo-dark.png') no-repeat center; }
#unity-progress-bar-empty { width: 141px; height: 18px; margin-top: 10px; margin-left: 6.5px; background: url('progress-bar-empty-dark.png') no-repeat center; }
#unity-progress-bar-full { width: 0%; height: 18px; margin-top: 10px; background: url('progress-bar-full-dark.png') no-repeat center; }

#unity-footer {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  padding: 0 10px;
  background: linear-gradient(180deg, transparent, rgba(0,0,0,.55));
  color: white;
}

.unity-mobile #unity-footer { display: none; }

#unity-build-title {
  line-height: 38px;
  font-family: Arial, sans-serif;
  font-size: 16px;
  font-weight: 700;
}

#unity-fullscreen-button { cursor: pointer; width: 38px; height: 38px; background: url('fullscreen-button.png') no-repeat center; }
#unity-warning { position: absolute; left: 50%; top: 16px; transform: translateX(-50%); background: white; padding: 10px; display: none; z-index: 2; }

.game-note {
  margin: 0;
  color: var(--muted);
  text-align: center;
  font-weight: 800;
}

@media (max-width: 760px) {
  .game-shell { width: min(100% - 16px, 1180px); padding: 8px 0 14px; gap: 8px; }
  .game-header { align-items: flex-start; flex-direction: column; border-radius: 18px; }
  .eyebrow { text-align: left; }
  .trail-layout { grid-template-columns: 1fr; }
  .dino-guide { grid-template-columns: 118px 1fr; grid-template-rows: auto; border-radius: 18px; }
  .dino-guide img { min-height: 142px; object-position: 18% 68%; }
  .dino-guide div { padding: 14px; }
  .game-stage { padding: 8px; border-radius: 18px; }
  #unity-container { width: 100%; min-height: 300px; max-height: calc(100vh - 210px); border-radius: 12px; }
}