/* Rhythm game: start, countdown, rhythm, result — same variables as kultira-vocala */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0d0a12;
  --surface: rgba(30, 15, 40, 0.85);
  --surface-2: rgba(45, 20, 60, 0.7);
  --border: rgba(255, 50, 150, 0.25);
  --accent: #ff2d95;
  --accent-2: #ff69b4;
  --accent-glow: rgba(255, 45, 149, 0.4);
  --neon-blue: #00f0ff;
  --text: #f8f0ff;
  --text-dim: rgba(255, 200, 240, 0.6);
  --radius: 16px;
  --font: 'Montserrat', 'Comfortaa', system-ui, sans-serif;
}

html, body {
  min-height: 100%;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
  padding: 0 16px 24px;
  overflow-x: hidden;
  overflow-y: auto;
  background-image:
    radial-gradient(ellipse at 20% 0%, rgba(255, 45, 149, 0.15) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 100%, rgba(0, 240, 255, 0.1) 0%, transparent 60%);
  background-attachment: fixed;
}

.sparkle-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background-image:
    radial-gradient(1px 1px at 10% 20%, rgba(255,255,255,.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 30% 60%, rgba(255,105,180,.4) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 50% 10%, rgba(0,240,255,.4) 0%, transparent 100%);
  animation: sparkle 4s ease-in-out infinite alternate;
}

@keyframes sparkle {
  0%   { opacity: .35; }
  100% { opacity: .7; }
}

.screen {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
}

.screen.hidden { display: none; }

.screen-start { text-align: center; gap: 1.5rem; }

.title {
  font-weight: 800;
  font-size: clamp(2rem, 7vw, 3.2rem);
  background: linear-gradient(135deg, var(--accent), var(--neon-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 20px var(--accent-glow));
}

.subtitle { font-size: 1rem; color: var(--text-dim); }

.menu-buttons { display: flex; flex-direction: column; gap: 12px; margin-top: 8px; }
.menu-buttons .btn-neon { min-width: 260px; }

.btn-neon {
  font-family: var(--font);
  font-weight: 700;
  font-size: 1rem;
  padding: 16px 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  backdrop-filter: blur(12px);
  color: var(--text);
  cursor: pointer;
  transition: border-color .2s, box-shadow .2s, transform .1s, background .2s;
}

.btn-neon:hover {
  border-color: var(--accent);
  box-shadow: 0 0 20px var(--accent-glow);
  background: var(--surface-2);
}

.btn-neon:active { transform: scale(0.97); }
.btn-neon:disabled { opacity: 0.7; cursor: wait; }

.hint { font-size: 12px; color: var(--text-dim); margin-top: 4px; }

.screen-countdown { gap: 1rem; }

.countdown-number {
  font-weight: 800;
  font-size: 5rem;
  color: var(--accent);
  text-shadow: 0 0 30px var(--accent-glow);
  line-height: 1;
}

.countdown-hint { font-size: 1rem; color: var(--text-dim); }

.screen-rhythm { gap: 1.25rem; }

.rhythm-track {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  max-width: 100%;
}

.rhythm-note {
  padding: 8px 12px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 600;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-dim);
  min-width: 36px;
  text-align: center;
  transition: all .2s;
}

.rhythm-note.current {
  background: rgba(255, 45, 149, 0.25);
  border-color: var(--accent);
  color: var(--accent-2);
  box-shadow: 0 0 16px var(--accent-glow);
  transform: scale(1.08);
}

.rhythm-note.next {
  border-color: var(--neon-blue);
  color: var(--neon-blue);
  opacity: 0.9;
}

.rhythm-hud {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 1.1rem;
}

.rhythm-current { font-weight: 700; color: var(--accent); min-width: 80px; }
.rhythm-next-label { color: var(--text-dim); font-size: 0.9rem; }
.rhythm-next { color: var(--neon-blue); font-weight: 600; }
.rhythm-progress { color: var(--text-dim); margin-left: auto; }
.rhythm-instruction { font-size: 0.95rem; color: var(--text-dim); }

.screen-result { gap: 1.25rem; text-align: center; }

.result-title { font-size: 1.35rem; font-weight: 700; color: var(--text); }

.result-score {
  font-weight: 800;
  font-size: 3.5rem;
  color: var(--accent-2);
  text-shadow: 0 0 24px var(--accent-glow);
}

.result-detail { font-size: 1rem; color: var(--text-dim); }
.result-hold { font-size: 1rem; font-weight: 600; color: var(--neon-blue); }
.result-recommendation { margin-top: 8px; font-size: 0.9rem; color: var(--text-dim); }
.result-recommendation.hidden { display: none; }

.result-errors-wrap {
  width: 100%;
  max-width: 360px;
  text-align: left;
  padding: 12px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.result-errors-title { font-size: 14px; font-weight: 700; color: var(--text); margin-bottom: 8px; }
.result-errors-list { list-style: none; font-size: 13px; color: var(--text-dim); }
.result-errors-list li { padding: 4px 0; border-bottom: 1px solid rgba(255,255,255,0.06); }
.result-errors-list li:last-child { border-bottom: none; }

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  padding: 10px 0;
  color: var(--text-dim);
  font-size: 13px;
  font-weight: 600;
  font-family: var(--font);
  text-decoration: none;
  transition: color .2s;
  position: relative;
  z-index: 2;
}

.back-link:hover { color: var(--accent-2); }

@media (min-width: 420px) {
  body { padding: 0 24px 32px; max-width: 460px; margin: 0 auto; }
}