/* ── Theme tokens ───────────────────────────────────────────────────── */
:root {
  --bg:           #0d0d0f;
  --surface:      #1a1a1f;
  --surface-2:    #23232b;
  --border:       #2e2e38;
  --text:         #e8e8f0;
  --text-dim:     #6b6b80;
  --text-dimmer:  #3e3e50;
  --accent:        #00e5a0;
  --accent-dim:    #00b87e;
  --accent-glow:   rgba(0, 229, 160, 0.18);
  --accent-manual: #4f9eff;
  --manual-glow:   rgba(79, 158, 255, 0.15);
  --inactive:      #3e3e50;
  --danger:        #ff5c5c;
  --radius:       12px;
  --radius-lg:    20px;
  --transition:   0.2s ease;
}

/* ── Reset & base ───────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  -webkit-tap-highlight-color: transparent;
  overscroll-behavior: none;
}

body {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
  padding: 24px 16px 40px;
}

/* ── Layout wrapper ─────────────────────────────────────────────────── */
.app {
  width: 100%;
  max-width: 480px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

/* ── Header ─────────────────────────────────────────────────────────── */
.header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
}

.logo {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.logo span { color: var(--accent); }

.spacebar-hint {
  font-size: 11px;
  color: var(--text-dimmer);
  letter-spacing: 0.08em;
}

/* ── BPM display ────────────────────────────────────────────────────── */
.bpm-display {
  width: 100%;
  text-align: center;
  margin-bottom: 16px;
}

.bpm-value {
  font-size: clamp(80px, 22vw, 120px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--inactive);
  transition: color var(--transition);
  font-variant-numeric: tabular-nums;
}

.bpm-value.active  { color: var(--accent); }
.bpm-value.manual  { color: var(--accent-manual); }

.bpm-unit {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dimmer);
  margin-top: 4px;
}

/* ── Confidence bar ─────────────────────────────────────────────────── */
.confidence-wrap {
  width: 100%;
  margin-bottom: 8px;
}

.confidence-track {
  width: 100%;
  height: 3px;
  background: var(--surface-2);
  border-radius: 2px;
  overflow: hidden;
}

.confidence-fill {
  height: 100%;
  width: 0%;
  background: var(--accent);
  border-radius: 2px;
  transition: width 0.3s ease, background 0.3s ease;
}

.confidence-label {
  font-size: 11px;
  color: var(--text-dimmer);
  letter-spacing: 0.08em;
  margin-top: 6px;
  text-align: center;
  height: 16px;
}

/* ── Tap count ──────────────────────────────────────────────────────── */
.tap-count {
  font-size: 12px;
  color: var(--text-dim);
  letter-spacing: 0.06em;
  margin-bottom: 28px;
  height: 16px;
}

/* ── Tap button ─────────────────────────────────────────────────────── */
.tap-wrap {
  position: relative;
  width: 200px;
  height: 200px;
  margin-bottom: 28px;
  flex-shrink: 0;
}

.pulse-ring {
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  opacity: 0;
  pointer-events: none;
}

.pulse-ring.animate {
  animation: pulseRing 0.5s ease-out forwards;
}

.pulse-ring.animate-accent {
  border-width: 3px;
  animation: pulseRingAccent 0.55s ease-out forwards;
}

@keyframes pulseRing {
  0%   { opacity: 0.7; transform: scale(1); }
  100% { opacity: 0;   transform: scale(1.35); }
}

@keyframes pulseRingAccent {
  0%   { opacity: 1;   transform: scale(1); }
  100% { opacity: 0;   transform: scale(1.55); }
}

.tap-btn {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 2px solid var(--border);
  background: var(--surface);
  color: var(--text-dimmer);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  transition:
    transform 0.08s ease,
    box-shadow 0.08s ease,
    border-color var(--transition),
    color var(--transition),
    background var(--transition);
  box-shadow:
    0 0 0 0 var(--accent-glow),
    0 8px 32px rgba(0,0,0,0.4);
  z-index: 1;
}

.tap-btn:active,
.tap-btn.pressed {
  transform: scale(0.94);
  box-shadow:
    0 0 0 0 var(--accent-glow),
    0 2px 8px rgba(0,0,0,0.4);
}

.tap-btn.active {
  border-color: var(--accent-dim);
  color: var(--accent);
  background: var(--surface);
  box-shadow:
    0 0 0 8px var(--accent-glow),
    0 8px 32px rgba(0,0,0,0.4);
}

.tap-btn.active:active,
.tap-btn.active.pressed {
  box-shadow:
    0 0 0 2px var(--accent-glow),
    0 2px 8px rgba(0,0,0,0.4);
}

.tap-btn.beat-flash        { background: var(--surface-2); }
.tap-btn.beat-flash-accent { background: var(--surface-2); border-color: var(--accent); }

/* ── Secondary controls ─────────────────────────────────────────────── */
.controls {
  display: flex;
  gap: 12px;
  margin-bottom: 36px;
}

.btn {
  height: 44px;
  padding: 0 24px;
  border-radius: var(--radius);
  border: 1.5px solid var(--border);
  background: var(--surface);
  color: var(--text-dim);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  transition:
    border-color var(--transition),
    color var(--transition),
    background var(--transition),
    transform 0.08s ease;
}

.btn:active { transform: scale(0.96); }

.btn-reset:hover {
  border-color: var(--danger);
  color: var(--danger);
}

.btn-metro { min-width: 130px; }

.btn-metro.running {
  border-color: var(--accent-dim);
  color: var(--accent);
  background: var(--accent-glow);
}

.btn-metro.running:hover {
  border-color: var(--danger);
  color: var(--danger);
  background: rgba(255,92,92,0.1);
}

/* ── Shared section style ───────────────────────────────────────────── */
.panel {
  width: 100%;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: none;
}

.panel.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.section-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dimmer);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Small tag shown in the Delay Calculator header */
.bpm-tag {
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--surface-2);
  color: var(--text-dim);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  transition: background var(--transition), color var(--transition);
}

.bpm-tag.live {
  background: var(--accent-glow);
  color: var(--accent);
}

.bpm-tag.manual {
  background: var(--manual-glow);
  color: var(--accent-manual);
}

/* ── Time signature ─────────────────────────────────────────────────── */
.timesig-row {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  margin-bottom: 12px;
}

.timesig-pills {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.timesig-pill {
  height: 32px;
  padding: 0 11px;
  border-radius: 8px;
  border: 1.5px solid var(--border);
  background: var(--surface);
  color: var(--text-dim);
  font-size: 12px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  transition:
    border-color var(--transition),
    color var(--transition),
    background var(--transition),
    transform 0.08s ease;
}

.timesig-pill:active { transform: scale(0.94); }

.timesig-pill.active {
  border-color: var(--accent-dim);
  color: var(--accent);
  background: var(--accent-glow);
}

/* ── Manual BPM input ───────────────────────────────────────────────── */
.bpm-input-row {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  height: 48px;
  padding: 0 16px;
  border-radius: var(--radius);
  border: 1.5px solid var(--border);
  background: var(--surface);
  margin-bottom: 24px;
  transition: border-color var(--transition);
}

.bpm-input-row:focus-within {
  border-color: var(--accent-manual);
}

.bpm-input-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-dimmer);
  flex: 0 0 auto;
  pointer-events: none;
}

.bpm-input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--text);
  font-size: 20px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  text-align: right;
  /* hide browser spin arrows */
  -moz-appearance: textfield;
  appearance: textfield;
}

.bpm-input::-webkit-outer-spin-button,
.bpm-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  appearance: none;
}

.bpm-input::placeholder { color: var(--text-dimmer); }

.bpm-input:focus { color: var(--accent-manual); }

.bpm-input-clear {
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: none;
  background: var(--surface-2);
  color: var(--text-dimmer);
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), color var(--transition);
  padding: 0;
}

.bpm-input-clear:hover {
  background: var(--danger);
  color: #fff;
}

/* ── Delay calculator ───────────────────────────────────────────────── */
.delay-section { margin-top: 24px; margin-bottom: 24px; }

.delay-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: none;
  border: none;
  padding: 0 0 12px;
  cursor: pointer;
  color: inherit;
  text-align: left;
  -webkit-tap-highlight-color: transparent;
}

.delay-chevron {
  font-size: 12px;
  color: var(--text-dimmer);
  flex-shrink: 0;
  transition: transform var(--transition);
}

.delay-table {
  width: 100%;
  border-collapse: collapse;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
}

.delay-table tbody tr {
  border-bottom: 1px solid var(--border);
  transition: background 0.15s ease;
}

.delay-table tbody tr:last-child { border-bottom: none; }
.delay-table tbody tr:hover { background: var(--surface-2); }

.delay-table td {
  padding: 10px 14px;
  font-size: 13px;
}

/* Symbol column */
.delay-table td.note-sym {
  width: 30px;
  text-align: center;
  font-size: 15px;
  color: var(--text-dimmer);
  padding-right: 4px;
  font-family: "Apple Symbols", "Segoe UI Symbol", "Noto Music", serif;
}

/* Name column */
.delay-table td.note-name {
  color: var(--text-dim);
  font-weight: 500;
}

/* Header row */
.delay-table thead tr {
  border-bottom: 1px solid var(--border);
}

.delay-table thead th {
  padding: 7px 14px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dimmer);
  text-align: right;
}

.delay-table thead th:nth-child(1),
.delay-table thead th:nth-child(2) {
  text-align: left;
}

/* Value columns */
.delay-table td.delay-val {
  text-align: right;
  color: var(--accent);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.delay-table td.delay-dim {
  color: var(--text-dimmer);
  font-weight: 500;
}

.delay-unit {
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--text-dimmer);
  margin-left: 1px;
}

/* ── BPM History ────────────────────────────────────────────────────── */
.history-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.history-pill {
  height: 36px;
  padding: 0 14px;
  border-radius: 18px;
  border: 1.5px solid var(--border);
  background: var(--surface);
  color: var(--text-dim);
  font-size: 13px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  transition:
    border-color var(--transition),
    color var(--transition),
    background var(--transition),
    transform 0.08s ease;
  display: flex;
  align-items: center;
  gap: 7px;
}

.history-pill:active { transform: scale(0.95); }

.history-pill:hover {
  border-color: var(--accent-dim);
  color: var(--accent);
}

.history-pill.selected {
  border-color: var(--accent-dim);
  color: var(--accent);
  background: var(--accent-glow);
}

.conf-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* ── Count-in pills ─────────────────────────────────────────────────── */
.countin-row {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  margin-top: 16px;
}

.countin-pills {
  display: flex;
  gap: 6px;
}

.countin-pill {
  height: 30px;
  padding: 0 10px;
  border-radius: 8px;
  border: 1.5px solid var(--border);
  background: var(--surface);
  color: var(--text-dim);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  transition:
    border-color var(--transition),
    color var(--transition),
    background var(--transition);
}

.countin-pill.active {
  border-color: var(--accent-dim);
  color: var(--accent);
  background: var(--accent-glow);
}

.countin-unit {
  font-size: 11px;
  color: var(--text-dimmer);
  letter-spacing: 0.06em;
}

/* ── Setlist section ─────────────────────────────────────────────────── */
.sl-section {
  width: 100%;
  margin-top: 24px;
  margin-bottom: 24px;
}

/* Toggle header — matches .delay-toggle exactly */
.sl-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 0 12px;
  background: none;
  border: none;
  cursor: pointer;
  color: inherit;
  text-align: left;
  -webkit-tap-highlight-color: transparent;
}

.sl-chevron {
  font-size: 12px;
  color: var(--text-dimmer);
  flex-shrink: 0;
}

/* Collapsible body — the card sits below the title */
.sl-body {
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
}

/* edit-only elements hidden when locked */
.sl-body.locked .edit-only { display: none !important; }

/* Picker row */
.sl-picker-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  margin-bottom: 10px;
}

.sl-select {
  flex: 1;
  height: 36px;
  background: var(--surface-2);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 13px;
  font-weight: 600;
  padding: 0 10px;
  cursor: pointer;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.sl-select:focus { border-color: var(--accent-dim); }

.sl-icon-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--radius);
  border: 1.5px solid var(--border);
  background: var(--surface-2);
  color: var(--text-dim);
  font-size: 15px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: border-color var(--transition), background var(--transition), color var(--transition);
  -webkit-tap-highlight-color: transparent;
}

.sl-icon-btn:hover { border-color: var(--accent-dim); color: var(--accent); }
#slDelBtn:hover    { border-color: var(--danger); color: var(--danger); }

/* Rename row */
.sl-rename-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.sl-name-input {
  flex: 1;
  height: 36px;
  background: var(--surface-2);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 13px;
  font-weight: 600;
  padding: 0 10px;
  outline: none;
}

.sl-name-input:focus { border-color: var(--accent-manual); }

/* Song list */
.sl-songs { margin-bottom: 14px; }

.sl-empty {
  font-size: 12px;
  color: var(--text-dimmer);
  padding: 12px 0;
  text-align: center;
  letter-spacing: 0.06em;
}

.song-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.15s ease;
  -webkit-tap-highlight-color: transparent;
  margin-bottom: 4px;
  border: 1.5px solid transparent;
}

.song-row:hover { background: var(--surface-2); }

.song-row.active {
  background: var(--accent-glow);
  border-color: var(--accent-dim);
}

.song-num {
  font-size: 11px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--text-dimmer);
  flex-shrink: 0;
  min-width: 28px;
  letter-spacing: 0.04em;
}

.song-row.active .song-num { color: var(--accent); }

.song-frac {
  font-weight: 400;
  color: var(--text-dimmer);
  font-size: 10px;
}

.song-info {
  flex: 1;
  overflow: hidden;
}

.song-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.song-row.active .song-name { color: var(--accent); }

.song-note {
  font-size: 11px;
  color: var(--text-dimmer);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 2px;
  letter-spacing: 0.02em;
}

.song-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 3px;
  flex-shrink: 0;
}

.song-bpm-badge {
  font-size: 13px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--text);
}

.song-row.active .song-bpm-badge { color: var(--accent); }

.song-ts-badge {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-dimmer);
  letter-spacing: 0.06em;
}

.song-actions {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
}

.song-act-btn {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  border: 1.5px solid var(--border);
  background: var(--surface-2);
  color: var(--text-dim);
  font-size: 13px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--transition), color var(--transition), background var(--transition);
  -webkit-tap-highlight-color: transparent;
}

.song-act-btn:disabled { opacity: 0.25; pointer-events: none; }
.song-act-btn:hover    { border-color: var(--accent-dim); color: var(--accent); }
.song-del-btn:hover    { border-color: var(--danger); color: var(--danger); }

/* Add-song form */
.sl-add-form {
  margin-bottom: 4px;
  padding: 12px;
  background: var(--surface-2);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.sl-add-row {
  display: flex;
  gap: 8px;
  margin-bottom: 8px;
}

.sl-add-row:last-child { margin-bottom: 0; }

.sl-field {
  height: 36px;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 13px;
  padding: 0 10px;
  outline: none;
  transition: border-color var(--transition);
  -moz-appearance: textfield;
  appearance: textfield;
}

.sl-field::-webkit-outer-spin-button,
.sl-field::-webkit-inner-spin-button { -webkit-appearance: none; appearance: none; }

.sl-field:focus { border-color: var(--accent-manual); }
.sl-field::placeholder { color: var(--text-dimmer); }

.sl-field-name { flex: 2; min-width: 0; }
.sl-field-bpm  { width: 70px; flex-shrink: 0; }
.sl-field-ts   {
  width: 62px;
  flex-shrink: 0;
  -webkit-appearance: none;
  appearance: none;
  background: var(--surface);
  cursor: pointer;
}
.sl-field-note { flex: 1; min-width: 0; }

.sl-add-btn {
  height: 36px;
  padding: 0 16px;
  border-radius: var(--radius);
  border: 1.5px solid var(--accent-dim);
  background: var(--accent-glow);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  flex-shrink: 0;
  transition: background var(--transition), border-color var(--transition);
  -webkit-tap-highlight-color: transparent;
}

.sl-add-btn:hover { background: rgba(0,229,160,0.28); }

/* Export / Import */
.sl-io-row {
  display: flex;
  gap: 8px;
  margin-top: 14px;
}

.sl-io-btn {
  height: 32px;
  padding: 0 14px;
  border-radius: var(--radius);
  border: 1.5px solid var(--border);
  background: var(--surface-2);
  color: var(--text-dim);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  letter-spacing: 0.04em;
  transition: border-color var(--transition), color var(--transition);
  display: flex;
  align-items: center;
  -webkit-tap-highlight-color: transparent;
}

.sl-io-btn:hover { border-color: var(--accent-dim); color: var(--accent); }

/* Count-in beat flash */
.tap-btn.countin-flash {
  background: var(--surface-2);
  border-color: var(--accent-manual);
}

/* ── Footer ─────────────────────────────────────────────────────────── */
.footer {
  margin-top: 40px;
  font-size: 11px;
  color: var(--text-dimmer);
  letter-spacing: 0.06em;
}

.footer a {
  color: var(--text-dim);
  text-decoration: none;
  transition: color var(--transition);
}

.footer a:hover { color: var(--accent); }