* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: #0f1117;
  color: #e1e4e8;
  max-width: 960px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

header { text-align: center; margin-bottom: 1.5rem; }
h1 { font-size: 1.8rem; font-weight: 700; }
h2 { font-size: 1.1rem; font-weight: 600; }
.subtitle { color: #8b949e; font-size: 0.9rem; margin-top: 0.3rem; }

/* Upload section */
.upload-section { margin-bottom: 1rem; }

.drop-zone {
  display: flex; flex-direction: column; align-items: center; gap: 0.3rem;
  padding: 1.5rem; border: 2px dashed #30363d; border-radius: 12px;
  transition: border-color 0.2s, background 0.2s; cursor: default;
}
.drop-zone.dragover { border-color: #58a6ff; background: rgba(88, 166, 255, 0.05); }
.drop-zone.has-file { border-color: #3fb950; border-style: solid; }
.drop-text { font-size: 0.9rem; color: #8b949e; }
.drop-zone.has-file .drop-text { color: #e1e4e8; }
.drop-hint { font-size: 0.75rem; color: #484f58; }

.upload-row {
  display: flex; gap: 0.5rem; align-items: center; margin-top: 0.5rem;
}

.alias-input {
  flex: 1; padding: 0.5rem 0.8rem; background: #161b22;
  border: 1px solid #30363d; border-radius: 8px; color: #e1e4e8;
  font-size: 0.85rem; outline: none;
}
.alias-input:focus { border-color: #58a6ff; }
.alias-input::placeholder { color: #484f58; }

button {
  background: #238636; color: #fff; border: none; padding: 0.5rem 1.2rem;
  border-radius: 8px; font-size: 0.85rem; cursor: pointer; font-weight: 600;
  white-space: nowrap;
}
button:disabled { opacity: 0.4; cursor: default; }
button:hover:not(:disabled) { background: #2ea043; }

.btn-secondary {
  background: #21262d; border: 1px solid #30363d; color: #e1e4e8;
}
.btn-secondary:hover:not(:disabled) { background: #30363d; border-color: #484f58; }

.btn-danger {
  background: none; border: none; color: #484f58; cursor: pointer;
  font-size: 0.85rem; padding: 0.2rem 0.4rem;
}
.btn-danger:hover { color: #f85149; }

/* Library */
.library-section { margin-bottom: 1.5rem; }

.library-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 0.5rem;
}

.library-table {
  width: 100%; border-collapse: collapse; font-size: 0.82rem;
}
.library-table th {
  text-align: left; padding: 0.4rem 0.5rem; color: #8b949e;
  font-size: 0.75rem; font-weight: 500; border-bottom: 1px solid #21262d;
}
.library-table .th-sub { text-align: center; width: 50px; }

.library-table td {
  padding: 0.45rem 0.5rem; border-bottom: 1px solid #161b22;
  vertical-align: middle;
}

.library-table tr.lib-row { cursor: pointer; transition: background 0.1s; }
.library-table tr.lib-row:hover { background: #161b22; }
.library-table tr.lib-row.selected { background: #1c2333; }

.lib-alias {
  font-weight: 600; max-width: 200px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

.lib-score { font-weight: 700; text-align: center; }
.lib-sub { text-align: center; font-variant-numeric: tabular-nums; }

.alias-edit {
  background: none; border: none; border-bottom: 1px dashed #484f58;
  color: #e1e4e8; font-size: 0.82rem; font-weight: 600;
  width: 100%; padding: 0; outline: none;
}
.alias-edit:focus { border-bottom-color: #58a6ff; }

.empty-msg { color: #484f58; font-size: 0.85rem; text-align: center; padding: 1.5rem; }

/* Loading */
.loading { display: flex; align-items: center; gap: 0.8rem; justify-content: center; padding: 2rem; }
.spinner {
  width: 20px; height: 20px; border: 2px solid #30363d; border-top-color: #58a6ff;
  border-radius: 50%; animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Detail */
.detail { margin-top: 1rem; }
.detail-title { margin-bottom: 1rem; color: #c9d1d9; }

.score-card {
  text-align: center; padding: 1.5rem; background: #161b22;
  border-radius: 12px; margin-bottom: 1.5rem;
}
.score-value { font-size: 3.5rem; font-weight: 800; line-height: 1; }
.score-label { font-size: 0.85rem; color: #8b949e; margin-top: 0.3rem; }
.score-explain { font-size: 0.85rem; color: #c9d1d9; margin-top: 0.6rem; }

.score-green { color: #3fb950; }
.score-yellow { color: #d29922; }
.score-red { color: #f85149; }

/* Waveform toolbar */
.waveform-toolbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.5rem 0.8rem; background: #161b22; border-radius: 8px 8px 0 0;
  border-bottom: 1px solid #21262d;
}

.playback-controls { display: flex; align-items: center; gap: 0.5rem; }
.zoom-controls { display: flex; align-items: center; gap: 0.4rem; }

.icon-btn {
  background: #21262d; color: #e1e4e8; border: 1px solid #30363d;
  width: 32px; height: 32px; padding: 0; border-radius: 6px;
  font-size: 0.85rem; display: flex; align-items: center; justify-content: center;
  cursor: pointer; line-height: 1;
}
.icon-btn:hover { background: #30363d; border-color: #484f58; }

#zoomFitBtn { width: auto; padding: 0 0.6rem; font-size: 0.75rem; }

.time-display { font-size: 0.8rem; color: #8b949e; font-variant-numeric: tabular-nums; min-width: 90px; }

#zoomSlider {
  width: 100px; height: 4px; -webkit-appearance: none; appearance: none;
  background: #30363d; border-radius: 2px; outline: none;
}
#zoomSlider::-webkit-slider-thumb {
  -webkit-appearance: none; width: 14px; height: 14px;
  background: #58a6ff; border-radius: 50%; cursor: pointer;
}

/* Waveform */
#waveform {
  background: #161b22; padding: 0.5rem;
  min-height: 140px; overflow-x: auto;
}

#minimap {
  background: #161b22; border-radius: 0 0 8px 8px;
  padding: 0 0.5rem 0.5rem; min-height: 30px;
}

/* Legend toggles */
.legend { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 1rem 0; }

.legend-toggle {
  display: flex; align-items: center; gap: 0.35rem;
  background: #161b22; border: 1px solid #30363d; color: #8b949e;
  padding: 0.3rem 0.7rem; border-radius: 20px; font-size: 0.78rem;
  cursor: pointer; transition: all 0.15s;
  width: auto;
}
.legend-toggle:hover { border-color: #484f58; }
.legend-toggle.active { color: #e1e4e8; border-color: #484f58; background: #21262d; }
.legend-toggle .legend-swatch { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.legend-toggle:not(.active) .legend-swatch { opacity: 0.35; }
.legend-count { color: #6e7681; font-size: 0.7rem; }

/* Sub-scores table */
.sub-scores { width: 100%; border-collapse: collapse; }
.sub-scores th { text-align: left; padding: 0.5rem; color: #8b949e; font-size: 0.8rem; border-bottom: 1px solid #21262d; }
.sub-scores td { padding: 0.5rem 0.5rem 0.8rem; font-size: 0.9rem; vertical-align: top; }
.detector-name { display: block; font-weight: 600; }
.detector-desc { display: block; font-size: 0.75rem; color: #8b949e; margin-top: 0.15rem; line-height: 1.3; }
.sub-scores .bar-cell { width: 50%; }
.bar-bg { background: #21262d; border-radius: 4px; height: 8px; }
.bar-fill { height: 100%; border-radius: 4px; transition: width 0.4s ease; }

/* Info button */
.info-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 18px; height: 18px; padding: 0; margin-left: 0.35rem;
  background: #21262d; border: 1px solid #30363d; border-radius: 50%;
  color: #8b949e; font-size: 0.7rem; font-weight: 700; cursor: pointer;
  vertical-align: middle; line-height: 1;
}
.info-btn:hover { background: #30363d; border-color: #58a6ff; color: #58a6ff; }

/* Docs modal */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0, 0, 0, 0.7);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000; padding: 2rem;
}
.modal {
  background: #161b22; border: 1px solid #30363d; border-radius: 12px;
  max-width: 680px; width: 100%; max-height: 80vh;
  display: flex; flex-direction: column; position: relative;
}
.modal-close {
  position: absolute; top: 0.6rem; right: 0.8rem;
  background: none; border: none; color: #8b949e; font-size: 1.4rem;
  cursor: pointer; padding: 0.2rem 0.5rem; line-height: 1;
}
.modal-close:hover { color: #e1e4e8; background: none; }
.modal-body {
  padding: 1.5rem 2rem 2rem; overflow-y: auto;
  font-size: 0.88rem; line-height: 1.6; color: #c9d1d9;
}
.modal-body h3 { font-size: 1.15rem; margin-bottom: 0.8rem; color: #e1e4e8; }
.modal-body h4 { font-size: 0.95rem; margin: 1.2rem 0 0.4rem; color: #e1e4e8; }
.modal-body p { margin: 0.4rem 0; }
.modal-body ol, .modal-body ul { margin: 0.4rem 0 0.4rem 1.2rem; }
.modal-body li { margin: 0.2rem 0; }
.modal-body code {
  background: #0d1117; padding: 0.15rem 0.4rem; border-radius: 4px;
  font-family: 'Consolas', 'Monaco', monospace; font-size: 0.82rem; color: #79c0ff;
}
.modal-body pre {
  background: #0d1117; padding: 0.7rem 1rem; border-radius: 6px; overflow-x: auto;
  font-family: 'Consolas', 'Monaco', monospace; font-size: 0.82rem; color: #79c0ff;
  margin: 0.5rem 0; line-height: 1.5;
}
.modal-body table {
  width: 100%; border-collapse: collapse; margin: 0.5rem 0;
}
.modal-body td {
  padding: 0.35rem 0.6rem; border: 1px solid #21262d; font-size: 0.82rem;
}
.modal-body td:first-child { white-space: nowrap; }
.modal-body td code { background: none; padding: 0; }
.modal-body strong { color: #e1e4e8; }
.modal-body em { color: #8b949e; }

.hidden { display: none !important; }