/* 3D 盲盒 · 赛博暗金主题 */

:root {
  --bg: #030712;
  --card: rgba(17, 24, 39, 0.75);
  --text: #f9fafb;
  --muted: #9ca3af;
  --accent: #f59e0b; /* Amber/Gold */
  --accent-2: #fcd34d;
  --accent-dim: rgba(245, 158, 11, .15);
  --on-accent: #451a03;
  --line: rgba(245, 158, 11, .2);
  --line-soft: rgba(255, 255, 255, .08);
  --r-md: 16px;
  --r-lg: 20px;
  --r-pill: 999px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "PingFang SC", sans-serif;
  overscroll-behavior: none;
  -webkit-tap-highlight-color: transparent;
  position: relative;
  overflow: hidden;
}

.game-shell {
  height: 100dvh; display: flex; flex-direction: column;
  max-width: 560px; margin: 0 auto; position: relative; z-index: 1;
}

/* ---- HUD ---- */
.hud {
  display: flex; align-items: center; gap: 12px;
  padding: calc(10px + env(safe-area-inset-top)) 16px 10px;
  border-bottom: 1px solid var(--line-soft);
  background: linear-gradient(180deg, rgba(3,7,18,0.9), rgba(17,24,39,0.5));
  backdrop-filter: blur(16px);
  position: absolute; top: 0; left: 0; right: 0; z-index: 10;
}
.hud-back {
  width: 36px; height: 36px; display: grid; place-items: center;
  color: var(--muted); border: 1px solid var(--line-soft);
  border-radius: var(--r-pill); text-decoration: none;
  background: rgba(255,255,255,0.05);
}
.hud-back svg { width: 18px; height: 18px; }
.hud-mid { flex: 1; display: flex; flex-direction: column; gap: 2px; }
.hud-kicker { font-size: 10px; letter-spacing: .22em; color: var(--accent); font-weight: 700; text-shadow: 0 0 10px var(--accent-dim);}
.hud-title { font-size: 17px; font-weight: 700; }

/* ---- Stage ---- */
.stage-wrap { position: relative; flex: 1; height: 100%; background: radial-gradient(circle at center, #111827, #030712); }
#stageWrap canvas { display: block; outline: none; }

.swipe-hint {
  position: absolute; top: 20%; left: 50%; transform: translateX(-50%);
  display: flex; align-items: center; gap: 8px;
  padding: 8px 16px; background: rgba(255,255,255,0.1); backdrop-filter: blur(8px);
  border-radius: var(--r-pill); color: #fff; font-size: 12px; font-weight: 600;
  pointer-events: none; opacity: 0; transition: opacity 0.5s;
}
.swipe-hint.is-show { opacity: 1; animation: bounce-hint 2s infinite; }
.swipe-hint svg { width: 16px; height: 16px; animation: swipe 2s infinite; }
@keyframes bounce-hint { 0%, 100% { transform: translate(-50%, 0); } 50% { transform: translate(-50%, -10px); } }
@keyframes swipe { 0%, 100% { transform: translateX(-5px); } 50% { transform: translateX(5px); } }

.action-bar {
  position: absolute; bottom: 0; left: 0; right: 0;
  padding: 24px 24px calc(24px + env(safe-area-inset-bottom));
  background: linear-gradient(to top, rgba(3,7,18,1), transparent);
  pointer-events: none; opacity: 0; transition: opacity 0.5s;
}
.action-bar.is-show { opacity: 1; pointer-events: auto; }

/* ---- Overlays ---- */
.overlay {
  position: absolute; inset: 0; display: grid; place-items: center;
  padding: 24px; background: rgba(3,7,18,.8); backdrop-filter: blur(12px);
  opacity: 0; pointer-events: none; transition: opacity .3s; z-index: 20;
}
.overlay.is-open { opacity: 1; pointer-events: auto; }

.overlay-card {
  width: 100%; max-width: 340px; background: var(--card);
  border: 1px solid var(--line); border-radius: 24px;
  box-shadow: 0 30px 60px rgba(0,0,0,.6), 0 0 50px rgba(245,158,11,0.15);
  padding: 32px 24px 28px; text-align: center;
  position: relative; overflow: hidden;
}
.overlay-card::before {
  content: ''; position: absolute; top: -50px; left: -50px; right: -50px; height: 150px;
  background: radial-gradient(ellipse at top, rgba(245,158,11,0.2), transparent 70%); pointer-events: none;
}
.overlay.is-open .overlay-card { animation: card-in .4s cubic-bezier(0.2, 0.8, 0.2, 1) forwards; }
@keyframes card-in { from { opacity: 0; transform: translateY(20px) scale(0.95); } to { opacity: 1; transform: none; } }

.overlay-icon {
  width: 64px; height: 64px; margin: 0 auto 16px; display: grid; place-items: center;
  color: var(--accent); background: linear-gradient(135deg, var(--accent-dim), transparent);
  border: 1px solid var(--line); border-radius: var(--r-pill);
}
.overlay-icon svg { width: 32px; height: 32px; filter: drop-shadow(0 0 8px var(--accent-dim)); }

.overlay-kicker { font-size: 11px; letter-spacing: .2em; color: var(--accent); font-weight: 700; }
.overlay-card h1, .overlay-card h2 { font-size: 1.7rem; font-weight: 800; margin: 8px 0 12px; background: linear-gradient(to right, #fff, var(--accent-2)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.overlay-card p { font-size: 14px; color: var(--muted); line-height: 1.7; margin-bottom: 24px; }

.item-preview {
  width: 100px; height: 100px; margin: 0 auto 16px; display: grid; place-items: center;
  background: radial-gradient(circle, rgba(245,158,11,0.2), transparent);
}
.item-preview svg { width: 64px; height: 64px; animation: float-item 3s ease-in-out infinite; filter: drop-shadow(0 0 10px rgba(245,158,11,0.6)); }
@keyframes float-item { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

.end-meta { font-size: 14px; color: var(--muted); margin-bottom: 0 !important; }

.end-actions { display: flex; flex-direction: column; gap: 12px; margin-top: 24px; }

.btn-primary {
  display: block; width: 100%; padding: 14px 0; font-size: 16px; font-weight: 700;
  color: var(--on-accent); background: linear-gradient(135deg, var(--accent-2), var(--accent));
  border: none; border-radius: var(--r-pill); cursor: pointer; transition: all 0.2s;
  box-shadow: 0 8px 24px rgba(245, 158, 11, .3);
}
.btn-primary:active { transform: scale(.96); }
.btn-ghost {
  display: block; width: 100%; padding: 13px 0; font-size: 15px; font-weight: 600;
  color: var(--text); background: rgba(255,255,255,0.05); border: 1px solid var(--line);
  border-radius: var(--r-pill); cursor: pointer; transition: all 0.2s;
}
.btn-ghost:active { transform: scale(.96); }
.btn-ghost:hover { border-color: var(--accent); }
.is-hidden { display: none !important; }