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

:root {
  --bg:       #1a1a2e;
  --surface:  #16213e;
  --border:   #0f3460;
  --accent:   #e94560;
  --accent2:  #533483;
  --text:     #eaeaea;
  --muted:    #8892a4;
  --radius:   6px;
  --font:     'Segoe UI', system-ui, sans-serif;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Header ───────────────────────────────────────────────── */
header {
  background: var(--surface);
  border-bottom: 2px solid var(--border);
  padding: .75rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
}

header h1 { font-size: 1.4rem; white-space: nowrap; }

#header-actions {
  display: flex;
  gap: .6rem;
  align-items: center;
  flex: 1;
  justify-content: flex-end;
}

#filter-search {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius);
  padding: .3rem .6rem;
  font-size: .85rem;
  width: 180px;
}

#btn-unlock        { background: transparent; border: 1px solid var(--border); color: var(--muted); }
#btn-add-tune      { background: var(--accent); }
#btn-clear-filters { background: transparent; border: 1px solid var(--border); color: var(--muted); font-size: .8rem; }
#status            { font-size: .8rem; color: var(--muted); }

/* ── Column header filters ────────────────────────────────── */
th[data-filter] {
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}

th[data-filter]::after {
  content: ' ▾';
  font-size: .7em;
  opacity: .5;
}

th[data-filter].filter-active::after {
  content: ' ▾';
  opacity: 1;
}

th[data-filter].filter-active {
  color: var(--text);
}

th[data-filter].filter-active::before {
  content: '● ';
  color: var(--accent);
  font-size: .6em;
  vertical-align: middle;
}

/* ── Filter popover ───────────────────────────────────────── */
#filter-popover {
  position: fixed;
  z-index: 100;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .6rem .75rem;
  min-width: 160px;
  box-shadow: 0 4px 16px rgba(0,0,0,.4);
}

#filter-popover-inner select,
#filter-popover-inner input[type="text"] {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius);
  padding: .3rem .5rem;
  font-size: .85rem;
  width: 100%;
}

.popover-checkbox-row {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .25rem 0;
  font-size: .875rem;
  cursor: pointer;
}

.popover-checkbox-row input[type="checkbox"] {
  width: 1rem;
  height: 1rem;
  accent-color: var(--accent);
  flex-shrink: 0;
}

.popover-clear {
  margin-top: .5rem;
  font-size: .75rem;
  background: transparent;
  border: none;
  color: var(--muted);
  cursor: pointer;
  padding: 0;
  text-decoration: underline;
}
.popover-clear:hover { color: var(--text); }

/* ── Buttons ──────────────────────────────────────────────── */
button {
  cursor: pointer;
  border: none;
  border-radius: var(--radius);
  padding: .35rem .75rem;
  font-size: .85rem;
  background: var(--accent2);
  color: var(--text);
  transition: opacity .15s;
}
button:hover { opacity: .85; }

/* ── Table ────────────────────────────────────────────────── */
main {
  flex: 1;
  overflow-x: auto;
  padding: 1rem 1.25rem;
}

#tune-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .875rem;
}

#tune-table th,
#tune-table td {
  padding: .5rem .75rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

#tune-table thead th {
  background: var(--surface);
  color: var(--muted);
  font-weight: 600;
  user-select: none;
}

#tune-table thead th[data-col] { cursor: pointer; }
#tune-table thead th[data-col]:hover { color: var(--text); }

.sort-indicator::after { content: ''; margin-left: .3em; }
th.sort-asc  .sort-indicator::after { content: '▲'; }
th.sort-desc .sort-indicator::after { content: '▼'; }

#tune-table tbody tr:nth-child(even) { background: rgba(255,255,255,.025); }
#tune-table tbody tr:hover           { background: rgba(255,255,255,.055); }

.pill {
  display: inline-block;
  padding: .15rem .45rem;
  border-radius: 99px;
  font-size: .75rem;
  font-weight: 600;
}
.pill-yes  { background: #1e4d2b; color: #6fcf97; }
.pill-no   { background: #4d1e1e; color: #eb5757; }
.pill-warn { background: #4d3a1e; color: #f2c94c; }

.action-btn {
  background: transparent;
  border: 1px solid var(--border);
  padding: .2rem .5rem;
  font-size: .75rem;
  margin-right: .25rem;
}

#empty-msg { color: var(--muted); text-align: center; padding: 2rem; }

/* ── Modal ────────────────────────────────────────────────── */
dialog {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  max-width: 560px;
  width: 95vw;
  max-height: 90vh;
  overflow-y: auto;
}

dialog::backdrop { background: rgba(0,0,0,.65); }

dialog h2 { margin-bottom: 1rem; }
dialog h3 { font-size: .95rem; margin: .75rem 0 .4rem; color: var(--muted); }

fieldset {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .75rem;
  margin-bottom: .75rem;
}

fieldset legend {
  padding: 0 .35rem;
  font-size: .85rem;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: .4rem;
}

fieldset label {
  display: grid;
  grid-template-columns: 120px 1fr;
  align-items: center;
  gap: .4rem;
  margin-bottom: .4rem;
  font-size: .85rem;
}

fieldset input[type="text"],
fieldset input[type="date"],
fieldset select {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius);
  padding: .3rem .5rem;
  font-size: .85rem;
  width: 100%;
}

.autocomplete-row {
  display: flex;
  gap: .4rem;
  align-items: center;
}

.autocomplete-row input  { flex: 1; }
.quick-add-btn { flex-shrink: 0; padding: .3rem .6rem; font-size: .85rem; background: var(--accent2); }

/* collapse instrument fieldset when checkbox unchecked */
fieldset .fs-body { display: none; }
fieldset.active .fs-body { display: contents; }

.note-row, .ref-row {
  display: flex;
  gap: .4rem;
  margin-bottom: .4rem;
  align-items: flex-start;
}

.note-row input, .ref-row input {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius);
  padding: .3rem .5rem;
  font-size: .85rem;
}

.remove-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: .2rem .45rem;
  font-size: .75rem;
}

.btn-danger { background: var(--accent); }

.note-row {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .3rem 0;
  border-bottom: 1px solid var(--border);
}
.note-row:last-child { border-bottom: none; }
.note-text { flex: 1; font-size: .875rem; }
.note-edit-controls { display: flex; gap: .25rem; }

.btn-edit-row { background: transparent; border: none; font-size: 1rem; padding: .2rem .3rem; }

#btn-delete-tune { background: #4d1e1e; color: #eb5757; border: 1px solid #eb5757; margin-right: auto; }

.modal-actions {
  display: flex;
  gap: .6rem;
  justify-content: flex-end;
  margin-top: 1rem;
}

#btn-save-tune { background: var(--accent); }
#btn-cancel    { background: transparent; border: 1px solid var(--border); }

/* ── Detail modal ─────────────────────────────────────────── */
#detail-content h2 { margin-bottom: .75rem; }
#detail-content table { width: 100%; border-collapse: collapse; font-size: .85rem; }
#detail-content td { padding: .3rem .5rem; border-bottom: 1px solid var(--border); }
#detail-content td:first-child { color: var(--muted); width: 120px; }
#detail-content h3 { margin: 1rem 0 .4rem; font-size: .9rem; color: var(--muted); }

#btn-detail-close {
  margin-top: 1rem;
  background: transparent;
  border: 1px solid var(--border);
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 600px) {
  #tune-table th:nth-child(n+5),
  #tune-table td:nth-child(n+5) { display: none; }
}