/* === Buttons === */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--surface);
  border: 2px solid var(--border-strong);
  color: var(--ink-soft);
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}
.btn:hover {
  border-color: var(--primary);
  color: var(--primary-strong);
  transform: translateY(-1px);
}
.btn.primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
  border-color: var(--primary-strong);
  color: #fff;
}
.btn.primary:hover {
  box-shadow: var(--shadow);
  filter: brightness(1.05);
}
.btn.ghost {
  background: transparent;
  border-color: var(--border);
}
.btn.danger {
  background: linear-gradient(135deg, #ff7575, var(--red));
  border-color: var(--red);
  color: #fff;
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: 50%;
  color: var(--ink-soft);
  cursor: pointer;
  transition: all 0.15s ease;
}
.icon-btn:hover {
  border-color: var(--primary);
  color: var(--primary-strong);
  transform: rotate(40deg);
}
.help-btn,
.help-close {
  font-size: 17px;
  font-weight: 800;
  line-height: 1;
}
.help-btn:hover,
.help-close:hover {
  transform: translateY(-1px);
}

.channel-switch {
  display: inline-flex;
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: 999px;
  padding: 3px;
  gap: 2px;
  height: 36px;
  overflow: hidden;
}
.ch-btn {
  background: transparent;
  border: none;
  color: var(--ink-soft);
  padding: 0 12px;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
  font-family: inherit;
}
.ch-btn:hover { color: var(--primary-strong); }
.ch-btn.active {
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.ch-btn[data-channel="all"].active {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
}
.ch-btn[data-channel="old"].active {
  background: linear-gradient(135deg, var(--gold), #c8a02a);
}
.audience-switch .ch-btn[data-audience="singer"].active {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
}
.audience-switch .ch-btn[data-audience="listener"].active {
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
}
.ch-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

@media (max-width: 600px) {
  .channel-switch { height: 32px; width: 100%; }
  .ch-btn {
    flex: 1 1 0;
    min-width: 0;
    padding: 0 6px;
    font-size: 10.5px;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .audience-switch .ch-btn { padding: 0 7px; }
}

@media (max-width: 700px) {
  .tabs {
    position: static;
    z-index: 45;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    background: var(--surface-glass);
    border: 1px solid var(--border-soft);
    border-radius: 20px;
    box-shadow: var(--shadow);
    gap: 8px;
    margin: 20px 0 16px;
    overflow: visible;
    padding: 10px;
  }
  .tab-btn {
    justify-content: center;
    min-width: 0;
    padding: 9px 10px;
    font-size: 12px;
    overflow: hidden;
    text-overflow: ellipsis;
  }
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 36px;
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: 999px;
  color: var(--ink-soft);
  cursor: pointer;
  padding: 0 14px;
  font-size: 12px;
  font-weight: 600;
  transition: all 0.15s ease;
}
.theme-toggle:hover {
  border-color: var(--primary);
}
.theme-icon { font-size: 14px; }
.theme-label { font-size: 11px; letter-spacing: 0.05em; text-transform: uppercase; color: var(--ink-mute); }

.load-more-btn {
  background: var(--surface);
  border: 2px solid var(--border-strong);
  color: var(--primary-strong);
  padding: 10px 24px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}
.load-more-btn:hover {
  background: var(--primary-soft);
  transform: translateY(-1px);
}

/* === Inputs === */

.text-input,
.select-input {
  height: 40px;
  padding: 0 16px;
  border: 2px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.text-input:focus,
.select-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-soft);
}
.text-input::placeholder { color: var(--ink-mute); }
.select-input { padding-right: 36px; cursor: pointer; }

/* === Tabs === */

.tabs {
  display: flex;
  gap: 6px;
  margin: 26px 0 18px;
  flex-wrap: wrap;
  overflow-x: auto;
  padding-bottom: 4px;
}
.tab-btn {
  background: var(--surface);
  border: 2px solid var(--border);
  color: var(--ink-soft);
  padding: 9px 18px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}
.tab-btn:hover {
  border-color: var(--primary);
  color: var(--primary-strong);
}
.tab-btn.active {
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
  border-color: var(--primary-strong);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.panels { min-height: 720px; }
.panel { display: none; animation: fadeIn 0.3s ease; }
.panel.active { display: block; }

/* === Cards === */

.card {
  background: var(--surface);
  border: 2px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 20px 22px;
  box-shadow: var(--shadow-sm);
}
.card.lg { padding: 28px 28px; border-radius: var(--radius-lg); }

.card-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 14px;
}
.card-title .pill {
  font-size: 11px;
  font-weight: 600;
  background: var(--primary-soft);
  color: var(--primary-strong);
  padding: 2px 9px;
  border-radius: 999px;
}

/* === Section header === */

.section-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}
.section-header h2 {
  font-size: 19px;
  color: var(--ink);
  padding-left: 12px;
  border-left: 6px solid var(--primary);
  border-radius: 2px;
}
.count-pill {
  background: var(--primary-soft);
  color: var(--primary-strong);
  padding: 3px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}

/* === Stat cards === */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
}
.stat-card {
  background: linear-gradient(180deg, var(--surface-2), var(--surface-3));
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 14px;
  text-align: center;
  transition: transform 0.15s ease;
  min-height: 88px;
}
.stat-card:hover { transform: translateY(-2px); }
.stat-card.placeholder { opacity: 0.4; }
.stat-card .stat-label {
  font-size: 11px;
  color: var(--ink-soft);
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}
.stat-card .stat-value {
  font-size: 26px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.1;
  font-feature-settings: var(--tnum);
}
.stat-card .stat-unit {
  font-size: 11px;
  color: var(--ink-mute);
  margin-left: 2px;
  font-weight: 500;
}
.stat-card.accent {
  background: linear-gradient(180deg, var(--accent-soft), var(--accent));
  border-color: var(--accent);
}
:root[data-theme="dark"] .stat-card.accent,
:root[data-theme="auto"] .stat-card.accent {
  background: linear-gradient(180deg, var(--accent-soft), #6a3554);
}
.stat-card.accent .stat-value { color: var(--accent-strong); }
.stat-card.gold {
  background: linear-gradient(180deg, #fff5d8, #fde9a8);
  border-color: var(--gold);
}
:root[data-theme="dark"] .stat-card.gold,
:root[data-theme="auto"] .stat-card.gold {
  background: linear-gradient(180deg, #3a3018, #2a2210);
}
.stat-card.gold .stat-value { color: #b88d1a; }
:root[data-theme="dark"] .stat-card.gold .stat-value,
:root[data-theme="auto"] .stat-card.gold .stat-value { color: var(--gold); }

/* === Badges === */

.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  background: var(--primary-soft);
  color: var(--primary-strong);
}
.badge.fresh { background: var(--green-bg); color: var(--green-text); }
.badge.stale { background: var(--orange-bg); color: var(--orange-text); }
.badge.never { background: var(--surface-3); color: var(--ink-mute); }
.badge.accent { background: var(--accent-soft); color: var(--accent-strong); }

/* === Spinner / state === */

.spinner {
  width: 36px;
  height: 36px;
  border: 4px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  margin: 0 auto 14px;
  animation: spin 0.9s linear infinite;
}

.state-card {
  background: var(--surface);
  border: 2px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  box-shadow: var(--shadow);
  margin-top: 28px;
}
.state-card .msg { color: var(--ink-soft); font-size: 14px; }
.state-card .err-detail {
  margin-top: 10px;
  font-family: ui-monospace, monospace;
  font-size: 12px;
  color: var(--red);
  word-break: break-all;
}

.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--ink-mute);
  font-size: 14px;
}

/* === Filter banner === */

.filter-banner {
  display: flex;
  align-items: center;
  gap: 12px;
  background: linear-gradient(135deg, var(--accent-soft), var(--accent));
  border: 2px solid var(--accent-strong);
  border-radius: var(--radius);
  padding: 12px 16px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
  flex-wrap: wrap;
}
:root[data-theme="dark"] .filter-banner,
:root[data-theme="auto"] .filter-banner {
  background: linear-gradient(135deg, var(--accent-soft), #6a3554);
}
.filter-banner .filter-icon { font-size: 18px; }
.filter-banner .filter-text {
  flex: 1 1 200px;
  font-size: 13px;
  color: var(--ink);
  line-height: 1.5;
}
.filter-banner .filter-text strong {
  color: var(--accent-strong);
  font-weight: 700;
}
.filter-banner .filter-text .meta {
  display: block;
  color: var(--ink-mute);
  font-size: 11px;
  margin-top: 2px;
}
.clear-btn {
  background: var(--surface);
  border: 2px solid var(--accent-strong);
  color: var(--accent-strong);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}
.clear-btn:hover {
  background: var(--accent-strong);
  color: #fff;
}

/* === Hero === */

.hero {
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(242, 255, 252, 0.92)),
    linear-gradient(110deg, rgba(24, 220, 214, 0.18), rgba(255, 114, 182, 0.14) 48%, rgba(255, 229, 117, 0.18));
  border-radius: var(--radius-lg);
  padding: 36px 32px 28px;
  border: 2px solid rgba(24, 220, 214, 0.28);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "✦";
  position: absolute; top: 14px; left: 22px;
  color: var(--accent);
  font-size: 28px; opacity: 0.75;
}
.hero::after {
  content: "★";
  position: absolute; bottom: 16px; right: 22px;
  color: var(--gold);
  font-size: 30px; opacity: 0.82;
}
.hero-title {
  font-size: clamp(20px, 3.5vw, 28px);
  text-align: center;
  letter-spacing: 0.04em;
  color: #173957;
  margin-bottom: 4px;
}
.hero-sub {
  text-align: center;
  color: var(--accent-strong);
  font-size: 12px;
  letter-spacing: 0.1em;
  margin-bottom: 10px;
}
.official-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
}
.official-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 30px;
  padding: 4px 14px;
  border-radius: 999px;
  border: 2px solid var(--border);
  background: var(--surface-2);
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s ease, border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}
.official-link:hover {
  transform: translateY(-1px);
  text-decoration: none;
}
.topbar-official-links {
  align-items: center;
  justify-content: flex-start;
}
.topbar-official-label {
  color: var(--ink-mute);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.topbar-official-links .official-link {
  min-height: 26px;
  padding: 2px 9px;
  font-size: 10.5px;
}
.official-link.youtube {
  border-color: #ff9aa2;
  background: #fff2f3;
  color: #d94444;
}
.official-link.youtube.old {
  border-color: var(--gold);
  background: #fff8dc;
  color: #a97a12;
}
.official-link.x-link {
  border-color: var(--border-strong);
  background: var(--primary-soft);
  color: var(--primary-strong);
}
:root[data-theme="dark"] .official-link.youtube {
  background: #3a2026;
  color: #ffb8c0;
}
:root[data-theme="dark"] .official-link.youtube.old {
  background: #332913;
  color: var(--gold);
}
@media (prefers-color-scheme: dark) {
  :root[data-theme="auto"] .official-link.youtube {
    background: #3a2026;
    color: #ffb8c0;
  }
  :root[data-theme="auto"] .official-link.youtube.old {
    background: #332913;
    color: var(--gold);
  }
}
.hero-updated {
  text-align: center;
  color: var(--ink-mute);
  font-size: 12px;
  margin-bottom: 22px;
}
.hero-updated strong { color: var(--ink); }

/* === Controls bar (search + filters) === */

.controls {
  display: flex;
  gap: 10px;
  margin-bottom: 18px;
  flex-wrap: wrap;
  align-items: center;
}
.controls .text-input { flex: 1 1 280px; min-width: 220px; }
.controls .select-input { flex: 0 0 auto; }
.controls .genre-select { min-width: 170px; }

.mobile-panel-switch {
  display: none;
}

.genre-strip {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: -4px 0 16px;
}
.genre-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 30px;
  padding: 4px 12px;
  border-radius: 999px;
  border: 2px solid var(--border);
  background: var(--surface);
  color: var(--ink-soft);
  font-family: inherit;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.2;
  cursor: pointer;
  transition: transform 0.15s ease, border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}
.genre-chip:hover {
  border-color: var(--primary);
  color: var(--primary-strong);
  transform: translateY(-1px);
}
.genre-chip.active {
  border-color: var(--primary-strong);
  background: var(--primary-soft);
  color: var(--primary-strong);
}
.genre-chip small {
  color: var(--ink-mute);
  font-size: 10px;
  font-weight: 700;
  font-feature-settings: var(--tnum);
}

.search-help {
  color: var(--ink-mute);
  font-size: 11px;
  margin-bottom: 18px;
  margin-top: -8px;
  line-height: 1.6;
}
.search-help code {
  background: var(--surface-3);
  padding: 1px 6px;
  border-radius: 6px;
  font-family: ui-monospace, monospace;
  font-size: 10.5px;
  color: var(--primary-strong);
}

mark.hl {
  background: var(--accent-soft);
  color: var(--accent-strong);
  padding: 0 2px;
  border-radius: 3px;
}

/* === Responsive === */

@media (max-width: 600px) {
  .btn,
  .card,
  .stat-card {
    min-width: 0;
  }
  main.container { padding-top: 18px; }
  .hero { padding: 24px 18px 20px; }
  .hero-title { font-size: 19px; }
  .panels { min-height: 560px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .stat-card { padding: 12px 8px; min-height: 76px; }
  .stat-card .stat-value {
    font-size: 20px;
    overflow-wrap: anywhere;
  }
  .topbar-inner { height: auto; }
  .brand-title { font-size: 13px; }
  .brand-sub { font-size: 9.5px; }
  .theme-label { display: none; }
  .theme-toggle { padding: 0 10px; }
  .card,
  .card.lg {
    padding: 16px 14px;
    border-radius: 16px;
  }
  .controls {
    gap: 8px;
  }
  .mobile-panel-switch {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
    margin: -4px 0 12px;
  }
  .mobile-panel-switch .btn {
    justify-content: center;
    min-height: 34px;
    padding: 6px 10px;
  }
  .mobile-panel-switch .btn.active {
    background: linear-gradient(135deg, var(--primary), var(--primary-strong));
    border-color: var(--primary-strong);
    color: #fff;
    box-shadow: var(--shadow-sm);
  }
  .mobile-panel:not(.is-open) {
    display: none;
  }
  .mobile-panel.is-open {
    display: block;
  }
  .controls .text-input,
  .controls .select-input,
  .controls .genre-select {
    flex: 1 1 100%;
    width: 100%;
    min-width: 0;
  }
  .genre-strip {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 4px;
    scrollbar-width: none;
  }
  .genre-strip::-webkit-scrollbar {
    display: none;
  }
  .genre-chip {
    flex: 0 0 auto;
  }
  .filter-banner {
    padding: 10px 12px;
  }
  .filter-banner .clear-btn {
    width: 100%;
  }
}

@media (max-width: 420px) {
  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }
  .stat-card .stat-label {
    font-size: 10px;
  }
  .stat-card .stat-value {
    font-size: 18px;
  }
  .tab-btn {
    padding: 8px 7px;
    font-size: 11px;
  }
}