:root {
  --bg1: #1a0b2e;
  --bg2: #3b0f5c;
  --accent: #ff2d78;
  --accent2: #ffcc00;
  --spotify: #1db954;
  --card: rgba(255,255,255,0.06);
  --card-border: rgba(255,255,255,0.12);
  --text: #f5f2ff;
  --text-dim: #b7aed1;
  --radius: 16px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  color: var(--text);
  background: radial-gradient(circle at 20% 10%, var(--bg2), var(--bg1) 60%);
  background-attachment: fixed;
}

#app { min-height: 100vh; display: flex; flex-direction: column; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 28px;
  border-bottom: 1px solid var(--card-border);
}
.topbar h1 { margin: 0; font-size: 22px; }

.userbox { display: flex; align-items: center; gap: 12px; }
.userbox span { color: var(--text-dim); font-size: 14px; }

main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 32px 20px 60px;
}

.screen { width: 100%; max-width: 1000px; }
.hidden { display: none !important; }

.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 28px;
  backdrop-filter: blur(6px);
}
.card.narrow { max-width: 460px; margin: 40px auto; }
.card.center { text-align: center; }

.card h2 { margin-top: 0; }

label { display: block; margin: 16px 0 6px; font-size: 13px; color: var(--text-dim); }
input[type="text"] {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--card-border);
  background: rgba(0,0,0,0.25);
  color: var(--text);
  font-size: 14px;
}
input[type="text"]:focus { outline: 2px solid var(--accent); }

.hint { color: var(--text-dim); font-size: 13px; }
code {
  background: rgba(0,0,0,0.35);
  padding: 2px 6px;
  border-radius: 6px;
}

.btn {
  display: inline-block;
  border: none;
  cursor: pointer;
  border-radius: 999px;
  padding: 12px 22px;
  font-size: 15px;
  font-weight: 600;
  margin-top: 18px;
  margin-right: 8px;
  text-decoration: none;
  transition: transform .12s ease, opacity .12s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }

.btn-primary { background: linear-gradient(135deg, var(--accent), #ff7a5c); color: #fff; }
.btn-spotify { background: var(--spotify); color: #04210f; }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--card-border); }
.btn-big { font-size: 20px; padding: 18px 34px; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
  margin-top: 20px;
}
.playlist-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 12px;
  cursor: pointer;
  text-align: left;
  transition: transform .15s ease, border-color .15s ease;
}
.playlist-card:hover { transform: translateY(-3px); border-color: var(--accent); }
.playlist-card img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 10px;
  margin-bottom: 10px;
  background: #222;
}
.playlist-card .pname { font-weight: 600; font-size: 14px; }
.playlist-card .pcount { color: var(--text-dim); font-size: 12px; margin-top: 4px; }

.game-layout {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 28px;
  align-items: start;
}
@media (max-width: 800px) {
  .game-layout { grid-template-columns: 1fr; }
}

.drum-panel {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
}

.drum {
  position: relative;
  width: 220px;
  height: 220px;
  margin: 20px auto;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #ffe08a, var(--accent2) 40%, #b8860b 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 40px rgba(255,204,0,0.35), inset 0 0 30px rgba(0,0,0,0.25);
}
.drum.spinning { animation: wobble 0.28s ease-in-out infinite; }
@keyframes wobble {
  0%   { transform: rotate(-6deg) scale(1); }
  25%  { transform: rotate(4deg) scale(1.02); }
  50%  { transform: rotate(-4deg) scale(0.99); }
  75%  { transform: rotate(6deg) scale(1.02); }
  100% { transform: rotate(-6deg) scale(1); }
}

.drum-glow {
  position: absolute;
  inset: -14px;
  border-radius: 50%;
  border: 3px dashed rgba(255,255,255,0.25);
}
.drum.spinning .drum-glow {
  animation: spin 1.4s linear infinite;
}
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.mini-balls {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.mini-ball {
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  opacity: 0;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  box-shadow: inset -2px -2px 3px rgba(0,0,0,0.35), 0 2px 4px rgba(0,0,0,0.3);
}

.drum.spinning .mini-ball {
  opacity: 1;
  animation-name: tumble;
  animation-timing-function: ease-in-out;
  animation-iteration-count: infinite;
  animation-duration: var(--dur, 0.9s);
  animation-delay: var(--delay, 0s);
}

@keyframes tumble {
  0%   { transform: translate(-50%, -50%) translate(var(--x0, 0), var(--y0, 0)) scale(0.8); }
  25%  { transform: translate(-50%, -50%) translate(var(--x1, 0), var(--y1, 0)) scale(1); }
  50%  { transform: translate(-50%, -50%) translate(var(--x2, 0), var(--y2, 0)) scale(0.9); }
  75%  { transform: translate(-50%, -50%) translate(var(--x3, 0), var(--y3, 0)) scale(1.05); }
  100% { transform: translate(-50%, -50%) translate(var(--x0, 0), var(--y0, 0)) scale(0.8); }
}

.ball-placeholder { font-size: 64px; }
.ball-cover {
  width: 170px;
  height: 170px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid rgba(0,0,0,0.3);
}
.ball-cover.pop-in, .ball-placeholder.pop-in {
  animation: popIn 0.45s cubic-bezier(.34, 1.56, .64, 1);
}
@keyframes popIn {
  0%   { transform: scale(0.2); opacity: 0; }
  60%  { transform: scale(1.15); opacity: 1; }
  100% { transform: scale(1); }
}

.reveal-box { min-height: 70px; margin: 10px 0 4px; }
.reveal-name { font-size: 22px; font-weight: 700; }
.reveal-artist { color: var(--text-dim); margin-top: 4px; }

.controls { margin-top: 10px; }
.controls.secondary { margin-top: 22px; opacity: .85; }

.history-panel {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 20px 24px;
  max-height: 620px;
  overflow-y: auto;
}
.history-panel h3 { margin-top: 0; }
.history-list { padding-left: 20px; margin: 0; }
.history-list li { margin-bottom: 8px; font-size: 14px; }
.history-list li .h-artist { color: var(--text-dim); font-size: 12px; }

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: #2a2a2a;
  color: #fff;
  padding: 12px 20px;
  border-radius: 10px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
  z-index: 999;
  max-width: 90vw;
}