/* Shared theme tokens, reset and base typography. Loaded by every
   authenticated page; not used by login/register. Pages may override
   any token in their own :root / [data-theme="dark"] blocks for
   feature-specific colours (chords, tags, autoscroll buttons, etc.). */

:root {
  --bg: #f5f5fa;
  --card: #ffffff;
  --text: #1a1a2e;
  --text-secondary: #666666;
  --border: #e5e5ef;
  --item-border: #f0f0f6;
  --item-hover: #f5f5fb;
  --focus-ring: rgba(26,26,46,0.12);
  --error: #c0392b;
  --link: #2563eb;
  --mark-bg: #fff3a3;
  --mark-text: #1a1a2e;
  --btn-danger: #c0392b;
  --btn-danger-hover: #962d22;
}

[data-theme="dark"] {
  --bg: #0f0f1a;
  --card: #1e1e2e;
  --text: #e8e8f5;
  --text-secondary: #aaaaaa;
  --border: #3a3a5c;
  --item-border: #2a2a4e;
  --item-hover: #252540;
  --focus-ring: rgba(232,232,245,0.2);
  --error: #ff6b6b;
  --link: #60a5fa;
  --mark-bg: #5a4f1a;
  --mark-text: #fff3a3;
  --btn-danger: #d65745;
  --btn-danger-hover: #b34534;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  touch-action: manipulation;
}

h1 { font-size: 1.8rem; font-weight: 700; color: var(--text); margin: 0 0 24px; }

h2 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 12px;
}

h3 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 8px;
}

a { color: var(--link); text-decoration: none; }

.btn,
.btn-secondary,
.btn-danger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 8px 18px;
  font: inherit;
  font-family: inherit;
  font-size: 0.95rem;
  line-height: 1.2;
  border-radius: 6px;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.btn {
  background: var(--text);
  color: var(--bg);
  border: 1px solid var(--text);
}

.btn:hover:not(:disabled) { opacity: 0.9; }

.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover:not(:disabled) { background: var(--item-hover); }

.btn-danger {
  background: var(--btn-danger);
  color: #fff;
  border: 1px solid var(--btn-danger);
}

.btn-danger:hover:not(:disabled) { background: var(--btn-danger-hover); border-color: var(--btn-danger-hover); }

.btn:focus-visible,
.btn-secondary:focus-visible,
.btn-danger:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--focus-ring);
}

.btn:disabled,
.btn-secondary:disabled,
.btn-danger:disabled,
.btn[aria-disabled="true"],
.btn-secondary[aria-disabled="true"],
.btn-danger[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
}

.search-input {
  width: 100%;
  padding: 10px 14px;
  font-size: 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  outline: none;
  background: var(--card);
  color: var(--text);
}

.search-input:focus {
  border-color: var(--text);
  box-shadow: 0 0 0 2px var(--focus-ring);
}

.song-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.song-list--card {
  background: var(--card);
  border-radius: 10px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.07);
  overflow: hidden;
}

.song-list__item {
  border-bottom: 1px solid var(--item-border);
  transition: background 0.15s;
  cursor: pointer;
}

.song-list__item:last-child { border-bottom: none; }

.song-list__item:hover { background: var(--item-hover); }

.song-list__item-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  color: var(--link);
  text-decoration: none;
  font-size: 0.95rem;
}

.song-list__item-text {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.song-status-icons {
  flex-shrink: 0;
  font-size: 1.1em;
  pointer-events: none;
  user-select: none;
  display: inline-flex;
  align-items: center;
  gap: 2px;
  /* ♥ is a text glyph, the learning cap is an inline SVG — both inherit color
     so list status markers match the song-title link without the "noise" of
     multicolor emoji. opacity softens them so they read as a marker, not a
     second link. */
  color: var(--link);
  opacity: 0.7;
}

.song-status-icons svg {
  width: 1em;
  height: 1em;
  display: block;
}

.song-list__item-link a {
  color: var(--link);
  text-decoration: none;
}

.song-list__sub {
  padding: 0 16px 10px;
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.4;
  word-break: break-word;
}

.song-list__sub mark {
  background: var(--mark-bg);
  color: var(--mark-text);
  padding: 0 2px;
  border-radius: 2px;
}

.song-list__empty {
  color: var(--text-secondary);
  font-size: 0.9rem;
  padding: 12px 16px;
}