/* basketball.bridge34.com — shared design tokens & primitives
 * Dark "stage" theme: deep navy base, vivid accents, high contrast for projectors.
 */
@font-face {
  font-family: 'Pretendard';
  src: url('/vendor/PretendardVariable.woff2') format('woff2-variations');
  font-weight: 45 920;
  font-display: swap;
}
:root {
  --bg0: #0b0f1a;
  --bg1: #111827;
  --bg2: #1c2438;
  --panel: rgba(255, 255, 255, 0.055);
  --panel-bd: rgba(255, 255, 255, 0.10);
  --fg: #f3f6fc;
  --fg-dim: #9aa7bd;
  --acc: #ee6a2c;       /* fire red (크립토농구) */
  --acc2: #ffb73d;      /* amber */
  --good: #2dd4a7;
  --bad: #ff5d73;
  --c-red: #e83a5f;
  --c-blue: #2f80ed;
  --c-yellow: #f2b322;
  --c-green: #1fbf75;
  --radius: 18px;
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.45);
  --font: "Pretendard", "Avenir Next", "Apple SD Gothic Neo", "Noto Sans KR", "Segoe UI", system-ui, sans-serif;
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg0);
  color: var(--fg);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
  overscroll-behavior: none;
  position: relative;
}
/* layered ambient background: aurora blobs that drift slowly */
body::before, body::after {
  content: '';
  position: fixed; inset: -20%;
  pointer-events: none; z-index: -1;
}
body::before {
  background:
    radial-gradient(38% 30% at 75% 8%, rgba(238,106,44, .18), transparent 70%),
    radial-gradient(30% 26% at 12% 80%, rgba(255, 183, 61, .08), transparent 70%),
    radial-gradient(26% 24% at 88% 78%, rgba(45, 212, 167, .07), transparent 70%),
    radial-gradient(1200px 800px at 70% -10%, #16203a 0%, var(--bg0) 55%);
  animation: drift 26s ease-in-out infinite alternate;
}
body::after {
  background-image: radial-gradient(rgba(255,255,255,.05) 1px, transparent 1.4px);
  background-size: 26px 26px;
  mask-image: radial-gradient(70% 70% at 50% 40%, #000 0%, transparent 100%);
}
@keyframes drift {
  from { transform: translate3d(-1.5%, -1%, 0) scale(1); }
  to { transform: translate3d(1.5%, 1.5%, 0) scale(1.06); }
}
button { font-family: inherit; cursor: pointer; border: 0; }
input { font-family: inherit; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: linear-gradient(180deg, #ff8a3c, #e0611a);
  color: #fff; font-weight: 800; letter-spacing: 0.02em;
  border-radius: 14px; padding: 14px 26px; font-size: 17px;
  box-shadow: 0 6px 18px rgba(224,97,26, 0.4), inset 0 1px 0 rgba(255,255,255,.25);
  transition: transform .08s ease, filter .15s ease;
  user-select: none; -webkit-user-select: none;
}
.btn { position: relative; overflow: hidden; }
.btn::after {
  content: ''; position: absolute; top: 0; bottom: 0; width: 40%;
  left: -60%; transform: skewX(-20deg);
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.25), transparent);
  transition: left .45s ease;
}
.btn:hover::after { left: 130%; }
.btn:active { transform: scale(.96); }
.btn:disabled { filter: grayscale(.7) brightness(.6); cursor: default; }
.btn.ghost {
  background: var(--panel); box-shadow: none;
  border: 1px solid var(--panel-bd); color: var(--fg);
}
.btn.warn { background: linear-gradient(180deg, #ff7a8e, #ee4763); box-shadow: 0 6px 18px rgba(238,71,99,.35); }
.btn.gold { background: linear-gradient(180deg, #ffcf6a, #f3a72b); color: #3a2702; box-shadow: 0 6px 18px rgba(243,167,43,.35); }
.btn.big { font-size: 22px; padding: 18px 36px; border-radius: 18px; }

.panel {
  background: linear-gradient(180deg, rgba(255,255,255,.075), rgba(255,255,255,.03));
  border: 1px solid var(--panel-bd);
  border-radius: var(--radius); box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--panel); border: 1px solid var(--panel-bd);
  border-radius: 999px; padding: 6px 14px; font-size: 14px; color: var(--fg-dim);
}
.chip b { color: var(--fg); }

.fade-in { animation: fadeIn .4s ease both; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
.pop-in { animation: popIn .45s cubic-bezier(.2, 1.4, .4, 1) both; }
@keyframes popIn { from { opacity: 0; transform: scale(.6); } to { opacity: 1; transform: scale(1); } }
.pulse { animation: pulse 1.4s ease-in-out infinite; }
@keyframes pulse { 0%,100% { transform: scale(1); } 50% { transform: scale(1.05); } }
.shake { animation: shake .5s ease both; }
@keyframes shake { 10%,90% { transform: translateX(-2px);} 20%,80% { transform: translateX(4px);} 30%,70% { transform: translateX(-7px);} 50% { transform: translateX(7px);} }

/* quiz answer colors/shapes */
.ans0 { background: linear-gradient(180deg, #f0506e, #d62a4d); }
.ans1 { background: linear-gradient(180deg, #4a90f4, #2566d8); }
.ans2 { background: linear-gradient(180deg, #ffc63d, #eda312); color: #3a2702; }
.ans3 { background: linear-gradient(180deg, #34d186, #16a85f); }

.lang-toggle {
  position: fixed; top: 12px; right: 12px; z-index: 50;
  background: var(--panel); border: 1px solid var(--panel-bd);
  color: var(--fg-dim); border-radius: 999px; padding: 7px 14px; font-size: 13px; font-weight: 700;
}


/* [엔지니어 2026-06-19] 게임 시작 카운트다운 오버레이 (Ben) — 호스트·게스트 공통 5→1 */
.cd-overlay { position: fixed; inset: 0; z-index: 200; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 3vh; background: rgba(8,11,20,.93); }
.cd-overlay.hidden { display: none; }
.cd-label { font-size: clamp(20px, 5vw, 46px); font-weight: 900; color: #fff; text-align: center; padding: 0 18px; }
.cd-num { font-size: clamp(120px, 30vw, 360px); font-weight: 900; line-height: .9; color: var(--acc2, #ffc73d);
  font-variant-numeric: tabular-nums; text-shadow: 0 6px 30px rgba(255,199,61,.4); }
.cd-num.cd-pop { animation: cdPop .5s cubic-bezier(.2,1.4,.4,1) both; }
@keyframes cdPop { 0% { transform: scale(.35); opacity: 0; } 45% { transform: scale(1.18); opacity: 1; } 100% { transform: scale(1); } }