:root {
  --bg: #f6f3ec;
  --surface: #ffffff;
  --surface-2: #fbf9f4;
  --text: #221f2b;
  --muted: #6d6780;
  --accent: #4c3a80;
  --accent-soft: #ece7f6;
  --gold: #b98a35;
  --border: #e7e1d5;
  --good: #1a7a44;
  --good-soft: #e7f6ec;
  --shadow: 0 1px 2px rgba(30, 20, 60, .05), 0 8px 26px rgba(30, 20, 60, .06);
  --radius: 16px;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14121b;
    --surface: #1e1b27;
    --surface-2: #232030;
    --text: #eee9f6;
    --muted: #a49cba;
    --accent: #b8a1ef;
    --accent-soft: #2a2440;
    --gold: #d6a959;
    --border: #302b40;
    --good: #7fd39a;
    --good-soft: #17331f;
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 26px rgba(0,0,0,.35);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: var(--font-body); line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-family: var(--font-display); font-weight: 600; letter-spacing: -.01em; }

.icon { width: 1.15em; height: 1.15em; fill: currentColor; flex: 0 0 auto; vertical-align: -.15em; }

/* ---- Top bar ---- */
.topbar {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--surface) 85%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: env(safe-area-inset-top) 0 0;
}
.brand {
  display: flex; align-items: center; gap: 9px;
  font-family: var(--font-display); font-weight: 600; font-size: 1.2rem;
  padding: 13px 20px; max-width: 940px; margin: 0 auto;
}
.brand-icon { width: 22px; height: 22px; fill: var(--accent); }

.app { max-width: 940px; margin: 0 auto; padding: 20px; }
.footer { text-align: center; color: var(--muted); font-size: .8rem; padding: 30px 18px 44px; }
.empty { color: var(--muted); text-align: center; padding: 26px; }
.notice.error { background: #fdecec; color: #9b1c1c; border: 1px solid #f5c2c2; padding: 14px 16px; border-radius: var(--radius); }

.back {
  display: inline-flex; align-items: center; gap: 5px;
  color: var(--accent); font-weight: 600; margin-bottom: 14px; font-size: .92rem;
}

/* ---- Landing ---- */
.hero { padding: 30px 0 10px; text-align: center; }
.hero h1 { margin: 6px 0 6px; font-size: 2.3rem; }
.hero .sub { color: var(--muted); margin: 0 auto 24px; max-width: 34ch; }

.selector {
  display: grid; grid-template-columns: 1.4fr 1fr 1.4fr; gap: 0;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden;
  max-width: 620px; margin: 0 auto; text-align: left;
}
.sel-field { display: flex; flex-direction: column; padding: 12px 16px; position: relative; }
.sel-field + .sel-field { border-left: 1px solid var(--border); }
.sel-field label { font-size: .68rem; text-transform: uppercase; letter-spacing: .07em; color: var(--muted); font-weight: 700; margin-bottom: 3px; }
.sel-field select, .sel-field input {
  border: none; background: transparent; color: var(--text);
  font-family: var(--font-body); font-size: 1.02rem; font-weight: 600;
  padding: 2px 0; width: 100%; appearance: none; cursor: pointer;
}
.sel-field input { cursor: text; }
.sel-field select:focus, .sel-field input:focus { outline: none; }
.sel-field.disabled { opacity: .45; }
.sel-field.disabled select { cursor: not-allowed; }
.sel-field select:required:invalid, .sel-field .placeholder { color: var(--muted); font-weight: 500; }
.jump-msg { min-height: 1.3em; margin: 16px 2px 0; color: var(--accent); font-weight: 600; }
.browse-cta { margin-top: 26px; }
.browse-link { display: inline-flex; align-items: center; gap: 6px; color: var(--accent); font-weight: 600; }
@media (max-width: 560px) {
  .selector { grid-template-columns: 1fr; }
  .sel-field + .sel-field { border-left: none; border-top: 1px solid var(--border); }
  .hero h1 { font-size: 1.9rem; }
}

/* ---- Browse ---- */
.list-head h1 { margin: 4px 0 2px; font-size: 1.75rem; }
.list-head .sub { margin: 0 0 14px; color: var(--muted); }
.search {
  width: 100%; padding: 13px 16px; font-size: 1rem; font-family: var(--font-body);
  border: 1px solid var(--border); border-radius: 12px; background: var(--surface); color: var(--text);
  box-shadow: var(--shadow);
}
.search:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0 10px; }
.chip { border: 1px solid var(--border); background: var(--surface); color: var(--text); padding: 7px 15px; border-radius: 999px; cursor: pointer; font-size: .86rem; font-weight: 600; }
.chip:hover { border-color: var(--accent); }
.chip.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.toggle { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); font-size: .9rem; cursor: pointer; }

.hymn-grid { display: grid; grid-template-columns: 1fr; gap: 10px; margin-top: 16px; }
@media (min-width: 640px) { .hymn-grid { grid-template-columns: 1fr 1fr; } }
.card {
  display: flex; gap: 14px; align-items: center;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px; box-shadow: var(--shadow); transition: transform .1s ease, border-color .12s ease;
}
.card:hover { transform: translateY(-1px); border-color: var(--accent); }
.card-num {
  flex: 0 0 auto; min-width: 48px; height: 48px; display: grid; place-items: center;
  font-family: var(--font-display); font-weight: 600; font-size: 1.15rem;
  color: var(--accent); background: var(--accent-soft); border-radius: 12px;
}
.card-body { min-width: 0; }
.card-title { font-weight: 600; }
.card-sub { color: var(--muted); font-size: .9rem; }
.card-meta { display: flex; gap: 8px; margin-top: 6px; flex-wrap: wrap; }
.book-tag, .parts-tag, .tunes-tag { font-size: .72rem; font-weight: 700; letter-spacing: .01em; padding: 3px 9px; border-radius: 999px; }
.book-tag { background: var(--accent-soft); color: var(--accent); }
.parts-tag { background: var(--good-soft); color: var(--good); }
.tunes-tag { background: #f6ecd8; color: var(--gold); }
@media (prefers-color-scheme: dark) { .tunes-tag { background: #33291699; } }

/* ---- Hymn view ---- */
.hymn-head { display: flex; gap: 15px; align-items: center; margin-bottom: 18px; }
.hymn-num {
  min-width: 58px; height: 58px; display: grid; place-items: center;
  font-family: var(--font-display); font-weight: 600; font-size: 1.35rem;
  color: var(--accent); background: var(--accent-soft); border-radius: 15px;
}
.hymn-head h1 { margin: 0 0 3px; font-size: 1.5rem; }
.hymn-sub { color: var(--muted); margin-bottom: 4px; }

section.tune-picker, section.player, section.notation {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 18px; margin-bottom: 18px;
}
section h2 { margin: 0 0 13px; font-size: 1.1rem; }
.player.muted { opacity: .9; }

.tabs { display: flex; flex-wrap: wrap; gap: 8px; }
.tab {
  border: 1px solid var(--border); background: var(--surface-2); color: var(--text);
  font-weight: 600; padding: 9px 16px; border-radius: 999px; cursor: pointer; font-size: .92rem;
}
.tab:hover:not(.disabled) { border-color: var(--accent); }
.tab.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.tab.disabled { opacity: .45; cursor: not-allowed; }

.mix-hint { color: var(--muted); font-size: .84rem; margin: 10px 0 14px; }
.transport { display: flex; align-items: center; gap: 11px; margin-bottom: 12px; }
.controls-row { display: flex; flex-wrap: wrap; gap: 8px 14px; align-items: center; }
.speeds { display: flex; gap: 6px; align-items: center; color: var(--muted); font-size: .85rem; }
.ctrl {
  display: inline-flex; align-items: center; gap: 6px;
  border: 1px solid var(--border); background: var(--surface-2); color: var(--text);
  padding: 8px 13px; border-radius: 10px; cursor: pointer; font-size: .85rem; font-weight: 600;
  font-family: var(--font-body);
}
.ctrl:hover { border-color: var(--accent); }
.ctrl.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.ctrl:disabled { opacity: .4; cursor: default; }
.play-btn { min-width: 104px; justify-content: center; background: var(--accent); color: #fff; border-color: var(--accent); }
.play-btn:hover { filter: brightness(1.06); }
.time { color: var(--muted); font-size: .82rem; font-variant-numeric: tabular-nums; min-width: 34px; }
.seek { flex: 1; accent-color: var(--accent); height: 4px; }

.pdf-controls { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 12px; }
.pdf-nav { display: inline-flex; gap: 8px; align-items: center; }
.pageinfo { color: var(--muted); font-size: .85rem; }
.pdf-canvas-wrap { text-align: center; overflow: auto; }
.pdf-canvas { max-width: 100%; border: 1px solid var(--border); border-radius: 8px; background: #fff; }