/* ============================================
   Music Scores — Shared Styles
   Used by: index.html, score.html, composer.html, tags.html
   Page-specific <style> blocks may still override any of this —
   this file is linked before each page's own styles.
   ============================================ */

:root {
  --bg:        #f7f4ee;
  --paper:     #fffef9;
  --ink:       #1a1814;
  --muted:     #7a7060;
  --faint:     #e8e2d4;
  --accent:    #8b3a1e;
  --accent2:   #2a5c45;
  --border:    #d4cdc0;
  --no-color:  #c0392b;
  --se-color:  #006aa7;
  --dk-color:  #c60c30;
  --fi-color:  #003580;
  --serif:     'Playfair Display', Georgia, serif;
  --body:      'Source Serif 4', Georgia, serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--body);
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
}

/* ── Sub-page header (score / composer / tags) ── */
.site-header {
  background: var(--paper);
  border-bottom: 1px solid var(--border);
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.back-link {
  font-size: 0.82rem;
  color: var(--muted);
  text-decoration: none;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.back-link:hover { color: var(--accent); }
.site-name {
  font-family: var(--serif);
  font-size: 1rem;
  font-weight: 500;
  color: var(--ink);
  text-decoration: none;
}

/* ── Mode switch (Public Domain / Copyright) ── */
.mode-switch-wrap {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}
.mode-switch-label {
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  color: var(--muted);
  cursor: pointer;
  transition: color 0.15s, font-weight 0.15s;
}
.mode-switch-label.active { color: var(--accent); font-weight: 600; }
.mode-switch {
  position: relative;
  display: inline-block;
  width: 38px;
  height: 20px;
}
.mode-switch input { opacity: 0; width: 0; height: 0; }
.mode-switch-slider {
  position: absolute; cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background: var(--border);
  border-radius: 20px;
  transition: background 0.15s;
}
.mode-switch-slider::before {
  content: '';
  position: absolute;
  height: 14px; width: 14px;
  left: 3px; bottom: 3px;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.15s;
}
.mode-switch input:checked + .mode-switch-slider { background: var(--accent); }
.mode-switch input:checked + .mode-switch-slider::before { transform: translateX(18px); }

/* ── Badges ── */
.badge {
  font-size: 0.75rem;
  padding: 3px 10px;
  border-radius: 4px;
  border: 1px solid;
  letter-spacing: 0.03em;
  display: inline-block;
}

/* ── Icon badges + MuseScore info dots (composer/tags score rows) ── */
.icon-badge {
  font-size: 0.68rem;
  padding: 2px 7px;
  border-radius: 3px;
  border: 1px solid var(--border);
  color: var(--muted);
  background: var(--bg);
  letter-spacing: 0.04em;
}
.ms-dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; flex-shrink: 0; }
.ms-dot.ms-low  { background: #aaa49c; }
.ms-dot.ms-med  { background: #3a6ea8; }
.ms-dot.ms-high { background: #cc2200; }

/* ── Loading / error states ── */
.loading-state {
  text-align: center;
  padding: 3rem;
  color: var(--muted);
  font-size: 0.9rem;
}
.error-state { color: #a32d2d; font-size: 0.9rem; padding: 1rem 0; }

/* ── Keyboard focus ── */
/* :focus-visible shows only for keyboard/assistive-tech navigation, not mouse clicks */
a:focus-visible,
button:focus-visible,
input:focus-visible,
[role="button"]:focus-visible,
[role="tab"]:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
/* Rounder controls need a matching outline radius so it doesn't look clipped */
.tag-pill:focus-visible,
.mode-switch-label:focus-visible,
.toggle-btn:focus-visible {
  outline-offset: 3px;
  border-radius: 20px;
}

/* ── Responsive: phones (≤640px) ── */
@media (max-width: 640px) {
  main { padding: 1.5rem 1rem 3rem; }

  .site-header {
    padding: 0.85rem 1.25rem;
    flex-wrap: wrap;
    gap: 0.6rem;
  }
  .mode-switch-wrap { margin-left: 0; }
}