:root {
  --ink: #0c0a08;
  --ink-2: #14100c;
  --panel: #1a1510;
  --panel-2: #211a12;
  --line: #3b2d1e;
  --line-soft: #2a2117;
  --brass: #c99a4b;
  --brass-bright: #e8c27a;
  --cream: #f2e7d2;
  --muted: #b9a98d;
  --faint: #8b7b63;
  --good: #9cbb7a;
  --radius: 0.45rem;
  --display: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--cream);
  background:
    radial-gradient(ellipse at 15% -10%, rgba(201, 154, 75, 0.14), transparent 45rem),
    radial-gradient(ellipse at 90% 5%, rgba(135, 72, 35, 0.10), transparent 38rem),
    linear-gradient(180deg, #0e0b08, var(--ink) 55%, #090705);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
.grain {
  position: fixed;
  inset: 0;
  z-index: 20;
  pointer-events: none;
  opacity: 0.075;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.82' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.7'/%3E%3C/svg%3E");
}
a { color: var(--brass-bright); text-decoration-color: rgba(232, 194, 122, 0.35); text-underline-offset: 0.18em; }
a:hover { color: #f6d99f; text-decoration-color: currentColor; }
img, svg { max-width: 100%; }
.wrap { width: min(1120px, calc(100% - 2.5rem)); margin-inline: auto; }

.site-header {
  position: relative;
  z-index: 30;
  border-bottom: 1px solid var(--line-soft);
  background: rgba(12, 10, 8, 0.82);
  backdrop-filter: blur(9px);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1.25rem; min-height: 4.4rem; }
.brand { display: inline-flex; align-items: center; gap: 0.65rem; color: var(--cream); font-family: var(--display); font-size: 1.18rem; letter-spacing: 0.02em; text-decoration: none; }
.brand-mark { display: grid; place-items: center; width: 2rem; height: 2rem; border: 1px solid var(--brass); border-radius: 50%; color: var(--brass-bright); font-family: var(--display); font-size: 0.9rem; }
.site-nav { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.site-nav a { color: var(--muted); font-size: 0.84rem; letter-spacing: 0.08em; text-transform: uppercase; text-decoration: none; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--brass-bright); }

main { position: relative; z-index: 1; padding: 2.6rem 0 4rem; }
.hero { padding: 2.4rem 0 1.4rem; border-bottom: 1px solid var(--line-soft); }
.eyebrow, .kicker { color: var(--brass); font-size: 0.76rem; font-weight: 650; letter-spacing: 0.2em; text-transform: uppercase; }
h1, h2, h3, h4 { font-family: var(--display); font-weight: 500; line-height: 1.12; letter-spacing: -0.012em; margin: 0 0 0.6rem; }
h1 { font-size: clamp(2.2rem, 5.2vw, 4rem); color: #fff4df; }
h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); }
h3 { font-size: 1.28rem; }
p { margin: 0 0 1rem; }
.lede { max-width: 44rem; color: var(--muted); font-size: 1.08rem; }
.muted, .note { color: var(--muted); }
.small { font-size: 0.84rem; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }

.grid-2 { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(15rem, 0.85fr); gap: 2rem; align-items: start; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.stack > * + * { margin-top: 1rem; }
.panel, .card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(150deg, rgba(33, 26, 18, 0.88), rgba(20, 16, 12, 0.92));
  box-shadow: 0 1px 0 rgba(255, 235, 190, 0.04) inset, 0 18px 50px rgba(0, 0, 0, 0.18);
}
.panel { padding: 1.35rem 1.45rem; }
.card { padding: 1.1rem 1.15rem; }
.card a { text-decoration: none; }
.card h3 { margin-bottom: 0.2rem; }
.card:hover { border-color: #57422a; }
.section { margin-top: 2.2rem; }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-bottom: 1rem; }
.section-head p { margin: 0; }

.chips { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.chip { display: inline-flex; align-items: center; min-height: 1.55rem; padding: 0.12rem 0.55rem; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: 0.75rem; letter-spacing: 0.03em; }
.chip-accent { border-color: rgba(201, 154, 75, 0.5); color: var(--brass-bright); }
.chip-warn { border-color: rgba(202, 137, 75, 0.55); color: #e1b27c; }

.btn, button, select, input[type="search"] {
  font: inherit;
  color: var(--cream);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-2);
}
button, .btn { display: inline-flex; align-items: center; justify-content: center; min-width: 2.2rem; min-height: 2.2rem; padding: 0.3rem 0.7rem; cursor: pointer; font-size: 0.88rem; }
button:hover, .btn:hover { border-color: var(--brass); color: var(--brass-bright); }
button:focus-visible, select:focus-visible, input:focus-visible, a:focus-visible { outline: 2px solid var(--brass-bright); outline-offset: 2px; }
select, input[type="search"] { min-height: 2.35rem; padding: 0.35rem 0.65rem; font-size: 0.9rem; }
label { color: var(--muted); font-size: 0.82rem; }

.transpose { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; margin: 0 0 1.2rem; padding: 0.75rem; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(12, 10, 8, 0.45); }
.transpose .key-display { min-width: 7.8rem; padding: 0.35rem 0.65rem; border: 1px solid rgba(201, 154, 75, 0.4); border-radius: var(--radius); color: var(--brass-bright); font-family: var(--display); font-size: 1rem; text-align: center; }
.transpose .spacer { flex: 1; }

.chart-section { margin: 1.35rem 0 1.9rem; }
.section-label { display: flex; align-items: center; gap: 0.6rem; margin: 0 0 0.55rem; color: var(--brass); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.22em; text-transform: uppercase; }
.section-label::after { content: ""; flex: 1; height: 1px; background: linear-gradient(90deg, var(--line), transparent); }
.bar-grid { display: grid; grid-template-columns: repeat(var(--bars, 4), minmax(0, 1fr)); gap: 0.38rem; }
.bar { min-height: 4.15rem; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.08rem; padding: 0.45rem 0.28rem; border: 1px solid var(--line-soft); border-radius: 0.32rem; background: linear-gradient(160deg, rgba(255, 243, 213, 0.035), rgba(0, 0, 0, 0.10)); }
.bar:nth-child(4n) { border-right-color: #5a452c; }
.chord { color: #fff3db; font-family: var(--display); font-size: clamp(0.88rem, 1.8vw, 1.14rem); font-weight: 600; letter-spacing: 0.01em; white-space: nowrap; }
.chord + .chord { color: var(--brass-bright); }

.facts { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
.facts th, .facts td { padding: 0.62rem 0.3rem; border-bottom: 1px solid var(--line-soft); vertical-align: top; text-align: left; }
.facts th { width: 37%; color: var(--faint); font-weight: 550; }
.facts tr:last-child th, .facts tr:last-child td { border-bottom: 0; }

.recordings, .tune-list, .link-list { list-style: none; margin: 0; padding: 0; }
.recordings li { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 0.2rem 1rem; padding: 0.75rem 0; border-bottom: 1px solid var(--line-soft); }
.recordings li:last-child { border-bottom: 0; }
.recordings .artist { font-family: var(--display); font-size: 1.02rem; }
.recordings .album, .recordings .year { color: var(--muted); }
.recordings .year { text-align: right; }

.tune-list li, .link-list li { border-bottom: 1px solid var(--line-soft); }
.tune-list li:last-child, .link-list li:last-child { border-bottom: 0; }
.tune-row { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; padding: 0.72rem 0; text-decoration: none; }
.tune-row .name { color: var(--cream); font-family: var(--display); font-size: 1.04rem; }
.tune-row .meta { color: var(--faint); font-size: 0.8rem; text-align: right; }
.tune-row:hover .name { color: var(--brass-bright); }
.letter { margin: 1.5rem 0 0.3rem; color: var(--brass); font-family: var(--display); font-size: 1.2rem; }

.search { width: 100%; margin: 0.4rem 0 1.2rem; }
.empty { padding: 1rem 0; color: var(--faint); font-style: italic; }
.prose { max-width: 48rem; }
.prose h2 { margin-top: 2rem; }
.prose h3 { margin-top: 1.6rem; }
.prose ul, .prose ol { padding-left: 1.25rem; color: var(--muted); }
.prose li { margin: 0.25rem 0; }
.example { margin: 1rem 0; padding: 0.9rem 1rem; border-left: 2px solid var(--brass); background: rgba(201, 154, 75, 0.06); color: var(--cream); font-family: var(--display); font-size: 1.08rem; letter-spacing: 0.02em; }
.callout { padding: 0.9rem 1rem; border: 1px solid rgba(201, 154, 75, 0.35); border-radius: var(--radius); background: rgba(201, 154, 75, 0.07); color: var(--muted); }

.site-footer { position: relative; z-index: 1; border-top: 1px solid var(--line-soft); padding: 2rem 0 2.6rem; color: var(--faint); font-size: 0.84rem; }
.site-footer .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.site-footer a { color: var(--muted); }

.skip { position: absolute; left: -9999px; top: 0; padding: 0.7rem 1rem; background: var(--brass); color: #17120c; z-index: 50; }
.skip:focus { left: 1rem; top: 1rem; }
[hidden] { display: none !important; }

@media (max-width: 820px) {
  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  main { padding-top: 1.7rem; }
  .site-header .wrap { min-height: 3.9rem; }
  .site-nav { gap: 0.7rem; }
}
@media (max-width: 560px) {
  .wrap { width: min(100% - 1.4rem, 1120px); }
  .site-header .wrap { align-items: flex-start; flex-direction: column; justify-content: center; padding-block: 0.8rem; gap: 0.5rem; }
  .site-nav { gap: 0.55rem 0.85rem; }
  .site-nav a { font-size: 0.74rem; }
  .panel { padding: 1rem; }
  .bar-grid { gap: 0.25rem; }
  .bar { min-height: 3.5rem; padding: 0.3rem 0.15rem; }
  .chord { font-size: 0.8rem; }
  .transpose { gap: 0.35rem; }
  .transpose .spacer { display: none; }
}

/* Breadcrumbs, hub chips */
.crumbs { padding-top: 1rem; font-size: 0.82rem; }
.crumbs ol { display: flex; flex-wrap: wrap; gap: 0.3rem; list-style: none; margin: 0; padding: 0; color: var(--muted); }
.crumbs li + li::before { content: "›"; margin-right: 0.3rem; color: var(--faint); }
.chips { display: flex; flex-wrap: wrap; gap: 0.5rem; list-style: none; padding: 0; margin: 0.4rem 0 0; }
.chips a { display: inline-block; padding: 0.3rem 0.75rem; border: 1px solid var(--line); border-radius: 999px; font-size: 0.86rem; text-decoration: none; }
.chips a:hover { border-color: var(--brass); }
:focus-visible { outline: 2px solid var(--brass-bright); outline-offset: 2px; }

/* Practice view */
.practice-only { display: none; }
.practice .practice-only { display: inline-flex; gap: 0.3rem; align-items: center; }
.practice .site-header, .practice .site-footer, .practice .crumbs, .practice .grain, .practice main .grid-2, .practice .browse, .practice #related-heading, .practice .tune-list, .practice .note { display: none !important; }
.practice [data-chart] .transpose { position: sticky; top: 0; z-index: 5; background: var(--ink); padding: 0.6rem 0; }
.practice .bar { min-height: 6.5rem; }
.practice .chord { font-size: clamp(1.3rem, 3.4vw, 2.3rem); }
.practice .section-label { font-size: 1rem; }
@media print {
  body { background: #fff; color: #000; }
  .site-header, .site-footer, .crumbs, .grain, .transpose, .browse, .skip, aside, #related-heading, .tune-list, .recordings { display: none !important; }
  .bar { border-color: #999; background: none; min-height: 3rem; }
  .chord, .chord + .chord { color: #000; }
  a { color: #000; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
.small a, .crumbs a, .site-footer a { display: inline-block; min-height: 24px; line-height: 24px; }