/* ===== BINAURAL STUDIO ===== */

.binu-main { padding: 2rem 0 5rem; }

/* ---- Warning ---- */
.binu-warning {
  max-width: 680px;
  margin: 0 auto 2rem;
  background: rgba(139,124,248,0.08);
  border: 1px solid rgba(139,124,248,0.2);
  border-radius: var(--radius);
  padding: 0.9rem 1.2rem;
  font-size: 0.9rem;
  color: var(--muted);
  text-align: center;
}

/* ---- Section title ---- */
.binu-section-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--accent);
  margin-bottom: 1rem;
}

/* ---- Presets ---- */
.binu-presets { max-width: 680px; margin: 0 auto 2.5rem; }

.binu-preset-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.7rem;
}

.binu-preset-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1rem 0.5rem;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  transition: border-color 0.2s, background 0.2s, transform 0.15s;
}

.binu-preset-card:hover { border-color: rgba(139,124,248,0.4); transform: translateY(-2px); }
.binu-preset-card.active { border-color: var(--accent); background: rgba(139,124,248,0.1); }

.binu-preset-icon { font-size: 1.5rem; }
.binu-preset-name { font-size: 0.82rem; font-weight: 600; }
.binu-preset-hz  { font-size: 0.68rem; color: var(--accent); }
.binu-preset-desc{ font-size: 0.66rem; color: var(--muted); text-align: center; }

/* ---- Controls ---- */
.binu-controls { max-width: 680px; margin: 0 auto 2.5rem; }

.binu-controls-grid { display: flex; flex-direction: column; gap: 1.2rem; }

.binu-control-row {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.1rem 1.3rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.binu-label { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--accent); }

.binu-slider-wrap {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.binu-slider-wrap input { flex: 1; accent-color: var(--accent); }
.binu-val { font-size: 0.82rem; color: var(--text); min-width: 52px; text-align: right; }

.binu-hint { font-size: 0.75rem; color: var(--muted); line-height: 1.5; }

/* ---- Player ---- */
.binu-player { max-width: 680px; margin: 0 auto; }

.binu-viz {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 1.2rem;
}

#binuCanvas { display: block; width: 100%; height: 80px; }

.binu-state {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 1rem;
}

.binu-state-label { font-family: var(--font-serif); font-size: 1.2rem; }
.binu-state-hz    { font-size: 0.82rem; color: var(--muted); }

.binu-play-row {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  flex-wrap: wrap;
}

.binu-play-btn { min-width: 120px; }

.binu-timer-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.84rem;
  color: var(--muted);
}

.binu-timer-row select {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.84rem;
  padding: 0.3rem 0.6rem;
}

#binuTimeLeft { color: var(--accent); font-size: 0.9rem; min-width: 56px; text-align: right; }

@media (max-width: 600px) {
  .binu-preset-grid { grid-template-columns: repeat(3, 1fr); }
}