:root {
  --bg: #F2ECE2;
  --card-bg: #FBF8F2;
  --text: #151210;
  --text-dim: #6B6259;
  --accent: #B8862F;
  --accent-2: #E2B45E;
  --on-accent: #151210;
  --border: #E4DCCF;
  --danger: #ef4444;
  --ok: #22c55e;
  --shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  color-scheme: light;
}

:root[data-theme="dark"] {
  --bg: #0E0C0A;
  --card-bg: #1A1714;
  --text: #F2ECE2;
  --text-dim: #A79D90;
  --accent: #E2B45E;
  --accent-2: #F2ECE2;
  --on-accent: #151210;
  --border: #2E2923;
  --shadow: 0 1px 3px rgba(0,0,0,.4), 0 1px 2px rgba(0,0,0,.3);
  color-scheme: dark;
}

* { box-sizing: border-box; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-tap-highlight-color: transparent;
}

.app {
  max-width: 480px;
  margin: 0 auto;
  padding: 12px 16px calc(24px + env(safe-area-inset-bottom));
  min-height: 100vh;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 4px 16px;
}

.topbar h1 { margin: 0; line-height: 0; }
.topbar .marca { height: 34px; width: auto; }
.topbar .marca-claro { display: none; }
:root[data-theme="light"] .topbar .marca-escuro { display: none; }
:root[data-theme="light"] .topbar .marca-claro { display: inline; }
.app-nome { display: block; font-size: 0.66rem; font-weight: 700; letter-spacing: 0.22em; text-transform: uppercase; color: var(--accent); margin-top: 6px; line-height: 1; }

.topbar .dot { color: var(--accent); }

.icon-btn {
  background: none;
  border: none;
  font-size: 1.3rem;
  color: var(--text-dim);
  cursor: pointer;
  padding: 6px 10px;
  border-radius: 10px;
}
.icon-btn:hover { background: var(--border); }

a.icon-btn {
  display: inline-block;
  text-decoration: none;
}

.main {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.card {
  background: var(--card-bg);
  border-radius: 18px;
  padding: 18px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

/* Tuner */
.tuner-status {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 6px;
  min-height: 1.2em;
}

.tuner-display {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.cents-meter {
  width: 100%;
  max-width: 300px;
  height: auto;
}

.meter-arc {
  fill: none;
  stroke: var(--border);
  stroke-width: 10;
  stroke-linecap: round;
}

.meter-needle {
  stroke: var(--text-dim);
  stroke-width: 4;
  stroke-linecap: round;
  transform-origin: 150px 150px;
  transition: transform 0.08s ease-out, stroke 0.15s ease-out;
}

.meter-needle.in-tune { stroke: var(--ok); }
.meter-needle.close { stroke: var(--accent); }

.meter-pivot { fill: var(--text-dim); }

.meter-tick {
  stroke: var(--border);
  stroke-width: 2;
}
.meter-tick.center {
  stroke: var(--text-dim);
  stroke-width: 3;
}

.note-readout {
  margin-top: -34px;
  display: flex;
  align-items: baseline;
  gap: 2px;
}

.note-name {
  font-size: 3.2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  transition: color 0.15s ease-out;
}
.note-name.in-tune { color: var(--ok); }
.note-name.close { color: var(--accent); }

.note-octave {
  font-size: 1.3rem;
  color: var(--text-dim);
  font-weight: 600;
}

.freq-readout {
  color: var(--text-dim);
  font-size: 0.85rem;
  margin-top: 2px;
  font-variant-numeric: tabular-nums;
}

.primary-btn {
  width: 100%;
  border: none;
  background: var(--accent);
  color: var(--on-accent);
  font-size: 1rem;
  font-weight: 700;
  padding: 13px 16px;
  border-radius: 14px;
  margin-top: 16px;
  cursor: pointer;
  transition: transform 0.08s ease-out, opacity 0.15s ease-out;
}
.primary-btn:active { transform: scale(0.97); }
.primary-btn.is-active {
  background: var(--danger);
}

/* Rhythm card */
.bpm-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
}

.round-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 1.4rem;
  cursor: pointer;
  line-height: 1;
}
.round-btn:active { transform: scale(0.94); }

.bpm-display {
  text-align: center;
  min-width: 100px;
}
.bpm-display #bpm-value {
  font-size: 2.6rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}
.bpm-label {
  display: block;
  font-size: 0.7rem;
  color: var(--text-dim);
  letter-spacing: 0.08em;
  margin-top: -4px;
}

.bpm-slider {
  width: 100%;
  margin-top: 14px;
  accent-color: var(--accent);
}

.secondary-row {
  display: flex;
  gap: 10px;
  margin-top: 14px;
}

.chip-btn, .chip-select {
  flex: 1;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  padding: 9px 10px;
  border-radius: 12px;
  font-size: 0.85rem;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
}

.beat-indicator {
  display: flex;
  gap: 6px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 16px;
  min-height: 20px;
}

.beat-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--border);
  transition: background 0.05s, transform 0.05s;
}
.beat-dot.accent { width: 16px; height: 16px; }
.beat-dot.lit { background: var(--accent); transform: scale(1.15); }
.beat-dot.lit.accent { background: var(--accent-2); }

.rhythm-select {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 16px;
}

.rhythm-chip {
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  padding: 10px 6px;
  border-radius: 12px;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
}
.rhythm-chip.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--on-accent);
}
.rhythm-group {
  grid-column: 1 / -1;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin: 6px 2px -2px;
}

.transport-row {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 4px;
}
.transport-row .play-btn { margin-top: 16px; flex: 2; }
.volume-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 16px;
}
.volume-wrap label { font-size: 0.7rem; color: var(--text-dim); }
.volume-wrap input { accent-color: var(--accent); width: 100%; }

/* Settings sheet */
.settings-sheet {
  position: fixed;
  inset: 0;
  z-index: 20;
}
.sheet-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.4);
}
.sheet-content {
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 100%;
  max-width: 480px;
  background: var(--card-bg);
  border-radius: 20px 20px 0 0;
  padding: 20px 20px calc(20px + env(safe-area-inset-bottom));
  box-shadow: var(--shadow);
}
.sheet-content h2 {
  margin: 0 0 12px;
  font-size: 1.1rem;
}
.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}
.setting-row input[type="number"] {
  width: 80px;
  padding: 6px 8px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
}

@media (max-width: 340px) {
  .note-name { font-size: 2.6rem; }
  .rhythm-select { grid-template-columns: repeat(2, 1fr); }
}

/* Instalar o app */
.install-btn { font-size: 0.8rem; font-weight: 700; color: var(--on-accent); background: var(--accent); border: none; border-radius: 999px; padding: 7px 12px; cursor: pointer; }
.install-steps { margin: 4px 0 8px; padding-left: 20px; font-size: 0.92rem; line-height: 1.5; }
.install-steps li { margin-bottom: 8px; }
.install-note { font-size: 0.8rem; color: var(--text-dim); margin: 6px 0 0; }
.install-tabs { display: flex; gap: 8px; margin: 4px 0 12px; }
.install-tabs button { flex: 1; border: 1px solid var(--border); background: var(--bg); color: var(--text); padding: 8px; border-radius: 10px; font-weight: 600; cursor: pointer; }
.install-tabs button.active { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }

/* Topo compacto: logo a esquerda, atalhos numa linha so */
.topbar > div { display: flex; align-items: center; gap: 0; flex-wrap: nowrap; }
.topbar .icon-btn { font-size: 1.1rem; padding: 6px 6px; }
.topbar .install-btn { margin: 0 4px; padding: 6px 10px; font-size: 0.75rem; white-space: nowrap; }
@media (max-width: 380px) { .topbar .marca { height: 28px; } .topbar .icon-btn { padding: 6px 4px; } }

/* Celulares estreitos: topo sem transbordar */
.topbar { gap: 8px; }
.topbar h1 { flex-shrink: 0; }
.topbar > div { flex-wrap: wrap; justify-content: flex-end; min-width: 0; }
html, body { overflow-x: hidden; }
@media (max-width: 440px) { .topbar .install-txt { display: none; } .topbar .install-btn { min-width: 40px; min-height: 40px; padding: 6px 10px; font-size: 1.1rem; } .topbar .icon-btn { font-size: 1.05rem; padding: 6px 4px; } .topbar .marca { height: 30px; } }

/* Faixa de instalação (aparece para quem ainda não instalou; pode ser fechada) */
.install-banner { display: flex; align-items: center; gap: 10px; margin: 8px 12px 0; padding: 10px 10px 10px 14px; border: 1px solid var(--accent); border-radius: 14px; background: color-mix(in srgb, var(--accent) 12%, var(--bg)); }
.install-banner[hidden] { display: none; }
.install-banner-txt { flex: 1; font-size: 0.9rem; line-height: 1.35; }
.install-banner-btn { min-height: 44px; padding: 10px 18px; font-size: 0.95rem; white-space: nowrap; }
.install-banner-close { flex: none; width: 36px; height: 36px; border: none; background: transparent; color: var(--text-dim); font-size: 1.4rem; line-height: 1; border-radius: 50%; cursor: pointer; }
.install-banner-close:hover { background: color-mix(in srgb, var(--text) 10%, transparent); }

.rhythm-select { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.rhythm-chip { overflow-wrap: normal; }