/* ── Reset & Base ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: #374151;
  background: #f8f9fa;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: inherit; }

/* ── Tokens ─────────────────────────────────────────────────────── */
:root {
  --navy:       #1B2A4A;
  --navy-light: #2a3f6f;
  --accent:     #1e90ff;
  --accent-dim: rgba(30,144,255,0.12);
  --dark:       #374151;
  --mid:        #6B7280;
  --border:     #E5E7EB;
  --off-white:  #F8F9FA;
  --white:      #FFFFFF;
  --max-w:      1080px;
  --radius:     10px;
  --transition: 150ms ease;
}

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 32px; }

/* ── Header ─────────────────────────────────────────────────────── */
.site-header {
  background: var(--navy);
  position: sticky; top: 0; z-index: 100;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 14px; padding-bottom: 14px;
}
.logo { display: flex; align-items: baseline; gap: 10px; }
.logo-bbm {
  font-size: 20px; font-weight: 700; letter-spacing: 0.04em;
  color: #fff;
}
.logo-sub { font-size: 13px; color: rgba(255,255,255,0.5); font-weight: 400; }
.header-nav { display: flex; gap: 4px; }
.nav-link {
  font-size: 14px; font-weight: 500; color: rgba(255,255,255,0.55);
  padding: 6px 14px; border-radius: 6px; transition: all var(--transition);
}
.nav-link:hover { color: #fff; background: rgba(255,255,255,0.08); }
.nav-link.active { color: #fff; background: rgba(255,255,255,0.14); }

/* ── View switching ─────────────────────────────────────────────── */
.view { display: none; }
.view.active { display: block; }

/* ── Hero / Search ──────────────────────────────────────────────── */
.hero {
  background: var(--navy);
  padding: 52px 0 44px;
  color: #fff;
}
.section-label {
  font-size: 12px; font-weight: 500; letter-spacing: 0.1em;
  text-transform: uppercase; color: rgba(255,255,255,0.45);
  margin-bottom: 10px;
}
.hero-heading {
  font-size: 34px; font-weight: 700; line-height: 1.2;
  color: #fff; margin-bottom: 10px;
}
.hero-sub { font-size: 15px; color: rgba(255,255,255,0.55); margin-bottom: 32px; }

/* ── Search box ─────────────────────────────────────────────────── */
.search-wrap { position: relative; max-width: 660px; }
.search-box {
  display: flex; align-items: center;
  background: #fff; border-radius: var(--radius);
  padding: 0 16px; gap: 10px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.18);
}
.search-icon { width: 18px; height: 18px; color: var(--mid); flex-shrink: 0; }
#search-input {
  flex: 1; border: none; outline: none; font-size: 15px;
  padding: 14px 0; color: var(--dark); background: transparent;
}
#search-input::placeholder { color: #9CA3AF; }
.search-clear {
  background: none; border: none; font-size: 14px;
  color: var(--mid); padding: 4px 6px; border-radius: 4px;
  transition: color var(--transition);
}
.search-clear:hover { color: var(--dark); }

/* ── Mode tabs ──────────────────────────────────────────────────── */
.mode-tabs { display: flex; gap: 6px; margin-top: 12px; }
.mode-tab {
  font-size: 12px; font-weight: 500; padding: 5px 14px;
  border: 1px solid rgba(255,255,255,0.2); border-radius: 20px;
  background: transparent; color: rgba(255,255,255,0.55);
  transition: all var(--transition);
}
.mode-tab:hover { background: rgba(255,255,255,0.1); color: #fff; }
.mode-tab.active {
  background: #fff; color: var(--navy); border-color: #fff;
}

/* ── Autocomplete dropdown ──────────────────────────────────────── */
.suggest-dropdown {
  position: absolute; top: calc(100% + 8px); left: 0; right: 0;
  background: #fff; border-radius: var(--radius);
  box-shadow: 0 8px 32px rgba(0,0,0,0.18);
  overflow: hidden; z-index: 200;
  color: var(--dark);
}
.suggest-group-label {
  font-size: 11px; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--mid); padding: 10px 16px 4px;
}
.suggest-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 9px 16px; cursor: pointer; transition: background var(--transition);
  font-size: 14px; color: var(--dark);
}
.suggest-item:hover { background: var(--off-white); }
.suggest-item-artist { font-weight: 500; color: var(--dark); }
.suggest-item-meta { font-size: 12px; color: var(--mid); }

/* ── Results area ───────────────────────────────────────────────── */
.results-section { padding: 40px 0 80px; min-height: 60vh; }
.results-area { position: relative; }

.empty-state {
  text-align: center; padding: 64px 0;
  color: var(--mid);
}
.empty-icon { font-size: 48px; margin-bottom: 16px; }
.empty-state p { font-size: 15px; margin-bottom: 28px; }
.quick-links { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; justify-content: center; }
.quick-label { font-size: 12px; font-weight: 500; color: var(--mid); }
.quick-chip {
  font-size: 13px; padding: 5px 14px; border-radius: 20px;
  border: 1px solid var(--border); background: #fff;
  color: var(--dark); transition: all var(--transition); font-family: inherit;
}
.quick-chip:hover { border-color: var(--accent); color: var(--accent); }
.quick-chip.lyrics-chip { border-color: #d97706; color: #92400e; background: #fffbeb; }
.quick-chip.lyrics-chip:hover { background: #fef3c7; border-color: #b45309; }

/* ── Fuzzy correction banner ────────────────────────────────────── */
.fuzzy-banner {
  font-size: 13px; color: var(--mid); margin-bottom: 16px;
  padding: 8px 14px; background: #fffbeb; border: 1px solid #fde68a;
  border-radius: 6px;
}
.fuzzy-banner strong { color: var(--dark); }

/* ── Loading ────────────────────────────────────────────────────── */
.loading {
  display: flex; align-items: center; gap: 12px;
  justify-content: center; padding: 64px 0; color: var(--mid);
}
.spinner {
  width: 20px; height: 20px; border-radius: 50%;
  border: 2px solid var(--border); border-top-color: var(--accent);
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.hidden { display: none !important; }

/* ── Result: paragraph (artist) ─────────────────────────────────── */
.result-artist {}
.result-header {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 16px; margin-bottom: 20px; flex-wrap: wrap;
}
.result-title { font-size: 26px; font-weight: 700; color: var(--navy); }
.result-meta-chips { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 6px; }
.chip {
  font-size: 12px; font-weight: 500; padding: 3px 10px;
  border-radius: 12px; background: var(--accent-dim); color: var(--accent);
}
.result-paragraph {
  font-size: 15px; line-height: 1.75; color: var(--dark);
  background: #fff; border-radius: var(--radius);
  padding: 24px 28px; border: 1px solid var(--border);
  margin-bottom: 28px;
}

/* ── Vol breakdown table ────────────────────────────────────────── */
.vol-breakdown { display: flex; flex-direction: column; gap: 16px; }
.vol-card {
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
}
.vol-card-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px; background: var(--off-white);
  border-bottom: 1px solid var(--border); cursor: pointer;
  transition: background var(--transition);
}
.vol-card-header:hover { background: #eef0f3; }
.vol-card-num { font-weight: 700; font-size: 15px; color: var(--navy); }
.vol-card-meta { font-size: 13px; color: var(--mid); }
.vol-card-toggle { font-size: 12px; color: var(--mid); }
.vol-card-tracks { padding: 0; }
.track-row {
  display: flex; align-items: center; gap: 12px;
  padding: 9px 20px; border-bottom: 1px solid var(--border); font-size: 14px;
}
.track-row:last-child { border-bottom: none; }
.track-row.sub { background: #fff; padding-left: 36px; color: var(--mid); }
.sub-pos { font-size: 11px; color: #aaa; margin-left: 8px; font-style: italic; }
.track-ts {
  font-size: 12px; color: var(--accent); font-weight: 500;
  min-width: 48px; white-space: nowrap; flex-shrink: 0;
}
.track-info { flex: 1; display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.track-w { font-size: 11px; color: #9CA3AF; flex-shrink: 0; }
.track-title { font-weight: 500; color: var(--dark); }
.track-artist-inline { font-size: 13px; color: var(--mid); }

/* ── Result: volume ─────────────────────────────────────────────── */
.vol-result-header { margin-bottom: 24px; }
.vol-result-title { font-size: 26px; font-weight: 700; color: var(--navy); }
.vol-result-meta { font-size: 14px; color: var(--mid); margin-top: 4px; }
.section-list { display: flex; flex-direction: column; gap: 1px; }
.section-card {
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden; margin-bottom: 10px;
}
.section-card-header {
  display: grid;
  grid-template-columns: 40px 64px 1fr;
  gap: 12px; align-items: center;
  padding: 13px 20px; cursor: pointer;
  transition: background var(--transition);
}
.section-card-header:hover { background: var(--off-white); }
.sec-num { font-size: 13px; font-weight: 700; color: var(--mid); }
.sec-ts  { font-size: 13px; color: var(--accent); font-weight: 500; }
.sec-main { }
.sec-title { font-weight: 600; font-size: 14px; color: var(--dark); }
.sec-artist { font-size: 13px; color: var(--mid); }
.sec-sub-count { font-size: 11px; color: #9CA3AF; }
.section-subs { border-top: 1px solid var(--border); padding: 8px 0; background: #fafbfc; }
.sub-row {
  display: flex; align-items: center; gap: 10px;
  padding: 6px 20px 6px 32px; font-size: 13px;
}
.sub-w { color: #C4C9D4; font-size: 11px; width: 16px; }
.sub-title { font-weight: 500; color: var(--dark); }
.sub-artist { color: var(--mid); }

/* ── Song results ───────────────────────────────────────────────── */
.song-results { display: flex; flex-direction: column; gap: 8px; }
.song-result-card {
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius); padding: 14px 20px;
  display: grid; grid-template-columns: 1fr auto;
  gap: 8px 16px; align-items: start;
}
.song-result-title { font-weight: 600; color: var(--dark); }
.song-result-artist { font-size: 13px; color: var(--mid); }
.song-result-loc { text-align: right; }
.song-result-vol { font-size: 13px; font-weight: 600; color: var(--navy); }
.song-result-ts { font-size: 12px; color: var(--accent); }
.song-result-sec { font-size: 12px; color: var(--mid); }
.badge-sub {
  font-size: 10px; font-weight: 600; padding: 1px 6px;
  border-radius: 4px; background: #F3F4F6; color: var(--mid);
  vertical-align: middle; margin-left: 6px;
}

/* ── Lyrics results ────────────────────────────────────────────── */
.lyr-card {
  display: block;
}
.lyr-snippet {
  font-size: 13px; color: var(--mid); font-style: italic;
  margin: 6px 0 4px; line-height: 1.5;
}
.lyr-highlight {
  background: #fef3c7; color: #92400e;
  font-style: normal; border-radius: 2px; padding: 0 1px;
}
.lyr-apps { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.lyr-app {
  font-size: 12px; background: #EEF2FF; color: var(--navy);
  padding: 2px 8px; border-radius: 99px; white-space: nowrap;
}
.lyr-ts { margin-left: 2px; color: var(--navy); }

/* ── Browse volumes grid ────────────────────────────────────────── */
.browse-hero {
  background: var(--navy); padding: 48px 0 40px; color: #fff;
}
.browse-hero .section-label { color: rgba(255,255,255,0.45); }
.browse-hero .hero-heading { color: #fff; }
.browse-grid-section { padding: 36px 0 60px; }
.vol-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
}
.vol-tile {
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius); padding: 22px 16px 18px;
  cursor: pointer; text-align: center;
  transition: all var(--transition);
}
.vol-tile:hover {
  border-color: var(--accent); box-shadow: 0 4px 16px rgba(30,144,255,0.12);
  transform: translateY(-2px);
}
.vol-tile-num { font-size: 28px; font-weight: 700; color: var(--navy); }
.vol-tile-label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--mid); margin-top: 2px; }
.vol-tile-count { font-size: 12px; color: var(--mid); margin-top: 8px; }
.vol-detail { padding: 40px 0 80px; }
.back-btn {
  font-size: 14px; color: var(--accent); background: none; border: none;
  padding: 0 0 20px; font-family: inherit; font-weight: 500;
}
.back-btn:hover { text-decoration: underline; }

/* ── Stats ──────────────────────────────────────────────────────── */
.stats-container { padding: 40px 0 80px; }
.stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
@media (max-width: 640px) { .stats-grid { grid-template-columns: 1fr; } }
.stat-card {
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px 28px;
}
.stat-card-title { font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--mid); margin-bottom: 16px; }
.stat-number { font-size: 48px; font-weight: 700; color: var(--navy); line-height: 1; margin-bottom: 4px; }
.stat-label { font-size: 14px; color: var(--mid); }
.stat-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 0; border-bottom: 1px solid var(--border); font-size: 14px;
}
.stat-row:last-child { border-bottom: none; }
.stat-row-name { font-weight: 500; color: var(--dark); }
.stat-row-num { font-weight: 600; color: var(--accent); }
.stat-bar-wrap { flex: 1; margin: 0 12px; height: 4px; background: var(--border); border-radius: 2px; }
.stat-bar { height: 4px; background: var(--accent); border-radius: 2px; transition: width 0.4s ease; }
.totals-row { display: flex; gap: 28px; margin-bottom: 28px; flex-wrap: wrap; }
.total-block { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 20px 24px; flex: 1; min-width: 140px; }
.total-block-num { font-size: 36px; font-weight: 700; color: var(--navy); }
.total-block-label { font-size: 13px; color: var(--mid); }

/* ── Platform links ──────────────────────────────────────────────── */
.section-ts-fallback { opacity: 0.6; }
.ts-note { font-size: 10px; color: var(--mid); margin-left: 2px; cursor: help; }
.platform-links { display: inline-flex; gap: 4px; margin-left: 8px; vertical-align: middle; }
.plat-btn {
  display: inline-block; padding: 1px 6px; border-radius: 4px;
  font-size: 10px; font-weight: 600; letter-spacing: 0.03em;
  text-decoration: none; line-height: 1.6;
  transition: opacity var(--transition);
}
.plat-btn:hover { opacity: 0.75; }
.plat-yt { background: #ff0000; color: #fff; }
.plat-sc { background: #ff5500; color: #fff; }
.plat-sp { background: #1db954; color: #fff; }

/* ── Footer ─────────────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--border); padding: 20px 0;
  font-size: 13px; color: var(--mid);
}
.site-footer a { color: var(--accent); }

/* ── Responsive ─────────────────────────────────────────────────── */
@media (max-width: 640px) {
  .hero-heading { font-size: 24px; }
  .logo-sub { display: none; }
  .header-nav .nav-link { font-size: 13px; padding: 6px 10px; }
  .container { padding: 0 16px; }
  .section-card-header { grid-template-columns: 32px 52px 1fr; }
}