@import url('https://fonts.googleapis.com/css2?family=Source+Serif+4:opsz,wght@8..60,400;8..60,600;8..60,700&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --bg-deep: #14171b;
  --surface: #1d2126;
  --surface-raised: #262b31;
  --surface-hover: #2e343b;
  --border: #33393f;
  --accent-brass: #c9a227;
  --accent-brass-dim: #8f7419;
  --accent-teal: #3e7a6d;
  --accent-teal-bright: #56a893;
  --text-primary: #ede7da;
  --text-muted: #9aa0a6;
  --text-faint: #666d74;
  --danger: #b1503f;
  --font-display: 'Source Serif 4', serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --radius: 6px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--bg-deep);
  color: var(--text-primary);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(circle at 1px 1px, rgba(255,255,255,0.025) 1px, transparent 0);
  background-size: 22px 22px;
  z-index: 0;
}
a { color: var(--accent-teal-bright); }
button { font-family: inherit; }

.hidden { display: none !important; }

/* ---------- Auth screen ---------- */
#auth-view {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
}
.auth-card {
  width: 360px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}
.auth-brand {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 4px;
}
.auth-brand .mark { color: var(--accent-brass); font-family: var(--font-mono); font-size: 13px; letter-spacing: 0.08em; }
.auth-brand h1 { font-family: var(--font-display); font-size: 26px; margin: 0; font-weight: 600; }
.auth-sub { color: var(--text-muted); font-size: 13px; margin: 0 0 24px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 12px; color: var(--text-muted); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.05em; }
.field input {
  width: 100%;
  background: var(--bg-deep);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 10px 12px;
  border-radius: var(--radius);
  font-size: 14px;
}
.field input:focus { outline: 2px solid var(--accent-teal-bright); outline-offset: 1px; border-color: var(--accent-teal-bright); }
.btn {
  border: none;
  border-radius: var(--radius);
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.05s ease, background 0.15s ease;
}
.btn:active { transform: scale(0.98); }
.btn-primary { background: var(--accent-brass); color: #221a02; width: 100%; }
.btn-primary:hover { background: #ddb62c; }
.btn-secondary { background: var(--surface-raised); color: var(--text-primary); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--surface-hover); }
.btn-danger { background: transparent; color: var(--danger); border: 1px solid var(--danger); }
.btn-danger:hover { background: rgba(177,80,63,0.12); }
.form-error { color: #e08a7a; font-size: 13px; margin: -8px 0 16px; min-height: 1em; }
.form-note { color: var(--text-faint); font-size: 12px; margin-top: 16px; }

/* ---------- App shell ---------- */
#app-view { display: flex; min-height: 100vh; position: relative; z-index: 1; }
.sidebar {
  width: 220px;
  flex-shrink: 0;
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
}
.sidebar .mark { color: var(--accent-brass); font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em; }
.sidebar h1 { font-family: var(--font-display); font-size: 21px; margin: 2px 0 24px; font-weight: 600; }
.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: var(--radius);
  color: var(--text-muted);
  cursor: pointer;
  font-size: 14px;
  margin-bottom: 2px;
}
.nav-item:hover { background: var(--surface-raised); color: var(--text-primary); }
.nav-item.active { background: var(--surface-raised); color: var(--accent-brass); font-weight: 600; }
.sidebar-spacer { flex: 1; }
.user-chip { border-top: 1px solid var(--border); padding-top: 14px; font-size: 13px; }
.user-chip .who { color: var(--text-primary); font-weight: 600; }
.user-chip .role { color: var(--text-faint); font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; }
.user-chip button { background: none; border: none; color: var(--text-faint); font-size: 12px; cursor: pointer; padding: 6px 0 0; }
.user-chip button:hover { color: var(--accent-teal-bright); }

.main { flex: 1; padding: 32px 40px; overflow-y: auto; height: 100vh; }
.main-header { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 24px; }
.main-header h2 { font-family: var(--font-display); font-size: 24px; margin: 0; }
.main-header .count { color: var(--text-faint); font-family: var(--font-mono); font-size: 13px; }

/* ---------- Shelf grid ---------- */
.shelf {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 18px;
}
.spine {
  background: linear-gradient(180deg, var(--surface-raised), var(--surface));
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent-brass-dim);
  border-radius: var(--radius);
  padding: 16px 14px;
  cursor: pointer;
  min-height: 190px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: border-color 0.15s ease, background 0.15s ease;
  position: relative;
  overflow: hidden;
}
.spine .cover-img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: 0;
}
.spine .cover-img + .spine-scrim {
  position: absolute; inset: 0; z-index: 0;
  background: linear-gradient(180deg, rgba(20,23,27,0.15) 0%, rgba(20,23,27,0.85) 75%);
}
.spine > * { position: relative; z-index: 1; }
.spine:hover { border-left-color: var(--accent-brass); background: var(--surface-hover); }
.spine .title { font-family: var(--font-display); font-size: 16px; line-height: 1.25; font-weight: 600; }
.spine .author { color: var(--text-muted); font-size: 12px; margin-top: 4px; }
.spine .meta { display: flex; justify-content: space-between; align-items: center; margin-top: 12px; }
.spine .meta span { font-family: var(--font-mono); font-size: 11px; color: var(--text-faint); }

.empty-state {
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 48px 24px;
  text-align: center;
  color: var(--text-muted);
}
.empty-state .big { font-family: var(--font-display); font-size: 18px; color: var(--text-primary); margin-bottom: 6px; }

/* ---------- Upload panel ---------- */
.upload-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 28px;
}
.upload-panel h3 { margin: 0 0 12px; font-family: var(--font-display); font-size: 16px; }
.upload-row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.upload-row .field { margin-bottom: 0; flex: 1; min-width: 160px; }
.file-drop {
  border: 1.5px dashed var(--border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
  cursor: pointer;
  margin-top: 14px;
}
.file-drop:hover { border-color: var(--accent-teal-bright); color: var(--text-primary); }
.file-drop.drag { border-color: var(--accent-brass); background: rgba(201,162,39,0.06); }
.file-list { margin-top: 10px; font-family: var(--font-mono); font-size: 12px; color: var(--text-muted); max-height: 90px; overflow-y: auto; }
.upload-actions { margin-top: 14px; display: flex; gap: 10px; align-items: center; }
.progress-track { flex: 1; height: 6px; background: var(--bg-deep); border-radius: 3px; overflow: hidden; }
.progress-fill { height: 100%; background: var(--accent-teal-bright); width: 0%; transition: width 0.2s ease; }

/* ---------- Metadata lookup ---------- */
.lookup-results {
  margin-top: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  max-height: 280px;
  overflow-y: auto;
}
.lookup-hit {
  display: flex;
  gap: 12px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
}
.lookup-hit:last-child { border-bottom: none; }
.lookup-hit:hover { background: var(--surface-raised); }
.lookup-hit img { width: 40px; height: 56px; object-fit: cover; border-radius: 3px; background: var(--bg-deep); flex-shrink: 0; }
.lookup-hit .ph { width: 40px; height: 56px; border-radius: 3px; background: var(--bg-deep); flex-shrink: 0; }
.lookup-hit .info { min-width: 0; }
.lookup-hit .t { font-size: 13px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.lookup-hit .a { font-size: 12px; color: var(--text-muted); }
.lookup-hit .d { font-size: 11px; color: var(--text-faint); margin-top: 3px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.lookup-empty { padding: 14px; color: var(--text-faint); font-size: 13px; text-align: center; }

/* ---------- Player / detail view ---------- */
.player-back { color: var(--text-muted); font-size: 13px; cursor: pointer; margin-bottom: 18px; display: inline-block; }
.player-back:hover { color: var(--accent-teal-bright); }
.player-head { display: flex; gap: 24px; margin-bottom: 28px; }
.player-cover {
  width: 120px; height: 160px; border-radius: var(--radius);
  background: linear-gradient(160deg, var(--surface-raised), var(--bg-deep));
  border: 1px solid var(--border); border-left: 4px solid var(--accent-brass);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-size: 13px; color: var(--text-faint); text-align: center; padding: 10px;
  flex-shrink: 0;
  overflow: hidden;
}
.player-cover img { width: 100%; height: 100%; object-fit: cover; }
.player-info h2 { font-family: var(--font-display); font-size: 26px; margin: 0 0 6px; }
.player-info .by { color: var(--text-muted); margin-bottom: 12px; }
.player-info .stats { font-family: var(--font-mono); font-size: 12px; color: var(--text-faint); }

.now-playing {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-bottom: 24px;
}
.now-playing .track-name { font-size: 14px; margin-bottom: 10px; }
.waveform {
  display: flex;
  align-items: flex-end;
  gap: 2px;
  height: 44px;
  cursor: pointer;
  margin-bottom: 8px;
}
.waveform .bar { flex: 1; background: var(--border); border-radius: 1px; transition: background 0.1s ease; min-width: 2px; }
.waveform .bar.played { background: var(--accent-teal-bright); }
.time-row { display: flex; justify-content: space-between; font-family: var(--font-mono); font-size: 11px; color: var(--text-faint); margin-bottom: 12px; }
.transport { display: flex; align-items: center; gap: 14px; }
.transport button {
  background: var(--surface-raised); border: 1px solid var(--border); color: var(--text-primary);
  width: 38px; height: 38px; border-radius: 50%; cursor: pointer; font-size: 14px;
  display: flex; align-items: center; justify-content: center;
}
.transport button:hover { background: var(--surface-hover); }
.transport .play-btn { background: var(--accent-brass); color: #221a02; border: none; width: 44px; height: 44px; font-size: 16px; }
.transport .play-btn:hover { background: #ddb62c; }
.transport select { margin-left: auto; background: var(--bg-deep); color: var(--text-primary); border: 1px solid var(--border); border-radius: var(--radius); padding: 6px 8px; font-family: var(--font-mono); font-size: 12px; }

.track-list { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.track-row {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 16px; font-size: 13px; cursor: pointer;
  border-bottom: 1px solid var(--border); background: var(--surface);
}
.track-row:last-child { border-bottom: none; }
.track-row:hover { background: var(--surface-raised); }
.track-row.playing { background: var(--surface-raised); color: var(--accent-brass); }
.track-row .n { font-family: var(--font-mono); color: var(--text-faint); width: 24px; }
.track-row .name { flex: 1; }
.track-row .dur { font-family: var(--font-mono); color: var(--text-faint); font-size: 12px; }
.track-row .rename-btn {
  background: none; border: none; color: var(--text-faint); cursor: pointer;
  font-size: 12px; padding: 2px 4px; opacity: 0; transition: opacity 0.1s ease;
}
.track-row:hover .rename-btn { opacity: 1; }
.track-row .rename-btn:hover { color: var(--accent-teal-bright); }
.track-row.editing { background: var(--surface-raised); }
.track-row .rename-input {
  flex: 1; background: var(--bg-deep); border: 1px solid var(--accent-teal-bright);
  border-radius: 4px; color: var(--text-primary); font-size: 13px; padding: 4px 8px;
}

.add-tracks { margin-top: 16px; }

/* ---------- Admin ---------- */
.tabs { display: flex; gap: 4px; margin-bottom: 20px; border-bottom: 1px solid var(--border); }
.tab { padding: 8px 14px; color: var(--text-muted); cursor: pointer; font-size: 13px; border-bottom: 2px solid transparent; }
.tab:hover { color: var(--text-primary); }
.tab.active { color: var(--accent-brass); border-bottom-color: var(--accent-brass); font-weight: 600; }

table { width: 100%; border-collapse: collapse; }
th { text-align: left; font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-faint); padding: 8px 12px; border-bottom: 1px solid var(--border); }
td { padding: 10px 12px; font-size: 13px; border-bottom: 1px solid var(--border); }
tr:last-child td { border-bottom: none; }
.role-badge { font-family: var(--font-mono); font-size: 11px; padding: 2px 7px; border-radius: 10px; background: var(--surface-raised); color: var(--text-muted); }
.role-badge.admin { color: var(--accent-brass); }
.row-actions { display: flex; gap: 8px; }
.row-actions button { background: none; border: none; color: var(--text-faint); cursor: pointer; font-size: 12px; padding: 0; }
.row-actions button:hover { color: var(--accent-teal-bright); }
.row-actions button.danger:hover { color: var(--danger); }

.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.55);
  display: flex; align-items: center; justify-content: center; z-index: 10;
}
.modal {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; width: 360px;
}
.modal h3 { margin: 0 0 16px; font-family: var(--font-display); }
.modal-actions { display: flex; gap: 10px; margin-top: 20px; }
.modal-actions .btn { flex: 1; }

.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  background: var(--surface-raised); border: 1px solid var(--border); color: var(--text-primary);
  padding: 10px 18px; border-radius: var(--radius); font-size: 13px; z-index: 20;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}
.toast.error { border-color: var(--danger); color: #e08a7a; }

@media (max-width: 720px) {
  .sidebar { width: 68px; padding: 16px 8px; }
  .sidebar h1, .sidebar .mark, .user-chip .who, .user-chip .role { display: none; }
  .nav-item span.label { display: none; }
  .main { padding: 20px; }
  .player-head { flex-direction: column; }
}