:root {
  --bg: #12101a;
  --panel: #1d1a2b;
  --text: #ece9f5;
  --muted: #9b95b3;
  --accent: #6b5ce7;
  --ok: #2ecc71;
  --bad: #e74c3c;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
}

.page {
  max-width: 640px;
  margin: 0 auto;
  padding: 48px 24px;
  text-align: center;
}

h1 { font-size: 2rem; margin-bottom: 8px; }

.tagline { color: var(--muted); font-size: 1.1rem; }

.muted { color: var(--muted); }

.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 10px;
  padding: 10px 22px;
  font-size: 1rem;
  cursor: pointer;
  text-decoration: none;
  margin-top: 12px;
}
.btn:disabled { opacity: 0.4; cursor: default; }
.btn.big { font-size: 1.2rem; padding: 14px 32px; margin-top: 24px; }

.stat-card {
  background: var(--panel);
  border-radius: 14px;
  padding: 24px;
  margin: 28px auto 8px;
  max-width: 380px;
}
.stat-value { font-size: 2.6rem; font-weight: 700; color: var(--accent); }
.stat-label { color: var(--muted); }

.rules {
  text-align: left;
  max-width: 420px;
  margin: 32px auto;
  padding-left: 20px;
  color: var(--muted);
}

.player { margin: 28px 0; }
.yt-hidden {
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  position: absolute;
  pointer-events: none;
}
.controls {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--panel);
  border-radius: 14px;
  padding: 18px 20px;
}
.play-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: none;
  background: var(--accent);
  color: #fff;
  font-size: 1.3rem;
  cursor: pointer;
  flex-shrink: 0;
}
.play-btn:disabled { opacity: 0.4; }
.progress { flex: 1; }
.bar {
  height: 8px;
  border-radius: 4px;
  background: #302b45;
  overflow: hidden;
}
.fill { height: 100%; background: var(--accent); transition: width 0.4s linear; }
.time {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 4px;
  font-variant-numeric: tabular-nums;
}

.sc-wrap { position: relative; }
.sc-cover {
  position: absolute;
  inset: 0 0 90px 0; /* cover artwork/title, leave the bottom controls visible */
  background: var(--panel);
  border-radius: 14px 14px 0 0;
}

.choices { margin-top: 20px; display: flex; flex-direction: column; gap: 12px; align-items: center; }
.choice {
  width: 240px;
  padding: 14px;
  font-size: 1.1rem;
  border-radius: 12px;
  border: 2px solid #302b45;
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
}
.choice[data-selected="true"] { border-color: var(--accent); background: #2a2450; }

.reveal {
  margin-top: 20px;
  background: var(--panel);
  border-radius: 14px;
  padding: 18px;
}
.reveal.ok { border: 1px solid var(--ok); }
.reveal.bad { border: 1px solid var(--bad); }
.reveal a { color: var(--accent); }

.score-big { font-size: 3.4rem; font-weight: 700; margin: 16px 0 0; }
.score-pct { font-size: 1.4rem; color: var(--muted); margin-left: 8px; }

.breakdown {
  list-style: none;
  padding: 0;
  margin: 24px auto;
  max-width: 520px;
  text-align: left;
}
.breakdown li {
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 10px 12px;
  border-radius: 10px;
  margin-bottom: 8px;
  background: var(--panel);
}
.breakdown li.ok { border-left: 4px solid var(--ok); }
.breakdown li.bad { border-left: 4px solid var(--bad); }
.breakdown a { color: var(--text); text-decoration: none; flex: 1; }
.tag {
  font-size: 0.75rem;
  text-transform: uppercase;
  background: #302b45;
  border-radius: 6px;
  padding: 2px 8px;
  white-space: nowrap;
}

.login-form { display: flex; flex-direction: column; gap: 12px; align-items: center; margin-top: 16px; }
.login-form input {
  padding: 12px 14px; border-radius: 10px; border: 2px solid #302b45;
  background: var(--panel); color: var(--text); font-size: 1rem; width: 280px;
}

/* Spinner shown in the play button while the song loads */
.play-btn .spinner {
  display: inline-block;
  width: 22px;
  height: 22px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }