/* ── Dark theme (black / white) — default ───────────────────────────────────── */
html[data-theme="dark"] {
  --red:     #333333;
  --red2:    #e8e8e8;
  --red3:    #ffffff;
  --redglow: rgba(232,232,232,0.07);
}

html[data-theme="dark"] nav {
  background: rgba(0,0,0,0.95);
}

html[data-theme="dark"] ::-webkit-scrollbar-thumb { background: var(--red2); }

/* ── Purple theme (black / purple) ─────────────────────────────────────────── */
html[data-theme="purple"] {
  --red:     #3b1a6e;
  --red2:    #6929c4;
  --red3:    #7c3aed;
  --redglow: rgba(105,41,196,0.12);
  --bg:      #000000;
  --bg2:     #06010e;
  --bg3:     #0d0520;
  --bg4:     #150a2e;
  --border:  #1a1a1a;
  --border2: #2a1a40;
  --gold:    #a855f7;
  --gold2:   #c084fc;
}

html[data-theme="purple"] nav {
  background: rgba(6,1,14,0.95);
}

html[data-theme="purple"] .playing-bar {
  background: rgba(6,1,14,0.98);
}

html[data-theme="purple"] #mobileBottomNav {
  background: rgba(6,1,14,0.98);
}

html[data-theme="purple"] ::-webkit-scrollbar-thumb { background: var(--red2); }

/* ── Light theme (white / black) ────────────────────────────────────────────── */
html[data-theme="light"] {
  --red:     #888888;
  --red2:    #111111;
  --red3:    #000000;
  --redglow: rgba(0,0,0,0.06);
  --txt:     #0f0f0f;
  --txt2:    #333333;
  --txt3:    #888888;
  --border:  #dedede;
  --border2: #cccccc;
  --bg:      #f5f5f5;
  --bg2:     #ffffff;
  --bg3:     #ececec;
  --bg4:     #e0e0e0;
}

html[data-theme="light"] body {
  background: var(--bg);
  color: var(--txt);
}

html[data-theme="light"] nav {
  background: rgba(245,245,245,0.95);
  border-bottom-color: var(--border);
}

html[data-theme="light"] .playing-bar {
  background: rgba(245,245,245,0.98);
  border-top-color: var(--border);
}

html[data-theme="light"] #mobileBottomNav {
  background: rgba(245,245,245,0.98);
  border-top-color: var(--border);
}

html[data-theme="light"] .modal-overlay {
  background: rgba(0,0,0,0.45);
}

html[data-theme="light"] .modal,
html[data-theme="light"] .detail-modal {
  background: #ffffff;
  border-color: var(--border2);
}

html[data-theme="light"] input,
html[data-theme="light"] select,
html[data-theme="light"] textarea {
  color-scheme: light;
}

html[data-theme="light"] ::-webkit-scrollbar-track { background: var(--bg); }
html[data-theme="light"] ::-webkit-scrollbar-thumb { background: var(--red2); }

/* ── Shared loading / error utilities ──────────────────────────────────────── */
.il-spinner {
  display: inline-block;
  width: 16px; height: 16px;
  border: 2px solid var(--border2, #222);
  border-top-color: var(--red2, #e8e8e8);
  border-radius: 50%;
  animation: il-spin 0.7s linear infinite;
  vertical-align: middle;
}
.il-spinner.lg { width: 28px; height: 28px; border-width: 3px; }
@keyframes il-spin { to { transform: rotate(360deg); } }

.il-loading-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 28px 16px;
  color: var(--txt3, #777);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-align: center;
}

.il-error-banner {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: rgba(229, 135, 135, 0.08);
  border: 1px solid rgba(229, 135, 135, 0.3);
  color: #e58787;
  font-size: 12px;
  letter-spacing: 0.04em;
  line-height: 1.5;
  margin: 12px 0;
}
.il-error-banner button {
  margin-left: auto;
  background: transparent;
  border: 1px solid currentColor;
  color: inherit;
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  padding: 5px 12px;
  cursor: pointer;
  letter-spacing: 0.06em;
}
.il-error-banner button:hover { background: rgba(229, 135, 135, 0.15); }