/* Fingering Chartly — design system
   Ink navy #1B2A41 · brass #D9A441 / deep brass #B97F26 · paper #FAF6EF · cream #F5EFE2 */
:root{
  --ink:#1B2A41; --ink-soft:#3D4E68; --brass:#D9A441; --brass-deep:#B97F26;
  --paper:#FAF6EF; --cream:#F5EFE2; --card:#FFFFFF; --line:#E4DCCB;
  --radius:14px; --shadow:0 10px 30px rgba(27,42,65,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
h1,h2,h3{font-family:Georgia,'Times New Roman',serif;line-height:1.22;color:var(--ink)}
h1{font-size:2.35rem;margin:.2em 0 .45em}
h2{font-size:1.65rem;margin:1.6em 0 .5em}
h3{font-size:1.18rem;margin:1.3em 0 .4em}
p{margin:.55em 0}
a{color:var(--brass-deep);text-decoration-thickness:1px;text-underline-offset:2px}
a:hover{color:var(--ink)}
img,svg{max-width:100%}
.lede{font-size:1.13rem;color:var(--ink-soft)}
.small{font-size:.92rem;color:var(--ink-soft)}

/* header */
.site-header{background:var(--paper);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.header-in{display:flex;align-items:center;justify-content:space-between;padding-top:10px;padding-bottom:10px;gap:16px}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none}
.logo-mark{width:42px;height:42px;flex:none;border-radius:10px}
.brand-name{font-family:Georgia,serif;font-weight:bold;font-size:1.28rem;color:var(--ink);letter-spacing:.2px}
.brand-name em{font-style:normal;color:var(--brass-deep)}
.brand.light .brand-name{color:#fff}
.brand.light .brand-name em{color:var(--brass)}
.main-nav{display:flex;gap:22px;flex-wrap:wrap}
.main-nav a{color:var(--ink);text-decoration:none;font-weight:600;font-size:.98rem}
.main-nav a:hover,.main-nav a.on{color:var(--brass-deep)}

/* hero + tool */
.hero{padding:38px 0 8px}
.hero h1{max-width:16em}
.tool-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:22px;margin:22px 0}
.tool-card h2{margin-top:0}
.tool-grid{display:grid;grid-template-columns:300px 1fr;gap:26px;align-items:start}
.tool-controls label{display:block;font-weight:600;margin:12px 0 5px;font-size:.95rem}
.tool-controls select{width:100%;padding:11px 12px;font-size:1rem;border:1.5px solid var(--ink-soft);
  border-radius:9px;background:#fff;color:var(--ink)}
.btn{display:inline-block;background:var(--ink);color:#fff;border:none;cursor:pointer;
  font-size:1rem;font-weight:700;padding:12px 22px;border-radius:9px;margin-top:16px}
.btn:hover{background:var(--brass-deep)}
.btn.secondary{background:#fff;color:var(--ink);border:1.5px solid var(--ink)}
.btn.secondary:hover{border-color:var(--brass-deep);color:var(--brass-deep)}
.tool-out{display:grid;grid-template-columns:170px 1fr;gap:20px;align-items:start}
.fing-diagram{width:100%;max-width:170px;height:auto}
.staff-svg{width:150px;height:auto;background:#fff;border:1px solid var(--line);border-radius:9px;padding:4px}
.tool-note-name{font-family:Georgia,serif;font-size:1.5rem;margin:0 0 2px}
.fing-words{font-size:1.05rem;background:var(--cream);border-radius:9px;padding:10px 14px}
.alt-toggle{margin-top:10px}

/* sections & cards */
.section{padding:14px 0}
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(215px,1fr));gap:14px;margin:16px 0}
.note-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:14px 16px;text-decoration:none;color:var(--ink);display:block}
.note-card:hover{border-color:var(--brass);box-shadow:var(--shadow)}
.note-card .nc-name{font-family:Georgia,serif;font-weight:bold;font-size:1.12rem}
.note-card .nc-sub{font-size:.9rem;color:var(--ink-soft)}
.reg-block{margin:26px 0}
.reg-block>h2{border-bottom:3px solid var(--brass);display:inline-block;padding-bottom:4px}

/* chart table */
.chart-table{width:100%;border-collapse:collapse;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;margin:14px 0}
.chart-table th,.chart-table td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}
.chart-table th{background:var(--ink);color:#fff;font-family:Georgia,serif}
.chart-table tr:last-child td{border-bottom:none}
.chart-table .fing-diagram{max-width:64px}
.chart-table .staff-svg{width:96px;border:none;padding:0}
.chart-table td.note-name{font-family:Georgia,serif;font-weight:bold;font-size:1.08rem;white-space:nowrap}

/* note page */
.crumbs{font-size:.92rem;color:var(--ink-soft);margin:18px 0 4px}
.crumbs a{color:var(--ink-soft)}
.note-hero{display:grid;grid-template-columns:200px 1fr;gap:26px;align-items:start;margin:14px 0 6px}
.note-hero .fing-diagram{max-width:200px}
.fact-row{display:flex;flex-wrap:wrap;gap:10px;margin:14px 0}
.fact{background:var(--cream);border:1px solid var(--line);border-radius:9px;padding:8px 13px;font-size:.95rem}
.fact b{color:var(--ink)}
.steps{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:6px 22px 12px;margin:16px 0}
.prev-next{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:26px 0}
.prev-next a{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:14px 16px;text-decoration:none;color:var(--ink);display:block}
.prev-next a:hover{border-color:var(--brass)}
.prev-next .pn-dir{font-size:.85rem;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.6px}
.prev-next .pn-name{font-family:Georgia,serif;font-weight:bold;font-size:1.15rem}
.prev-next .next{text-align:right}
details.faq{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:12px 16px;margin:9px 0}
details.faq summary{font-weight:700;cursor:pointer;font-family:Georgia,serif}
.report-line{border-top:1px dashed var(--line);margin-top:28px;padding-top:12px}

/* footer */
.site-footer{background:var(--ink);color:#D9DEE8;margin-top:52px;padding:38px 0 26px}
.site-footer a{color:#E9C979}
.foot-top{max-width:560px}
.foot-tag{color:#AEB9CC}
.foot-cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:20px;margin:26px 0}
.foot-col h3{color:#fff;font-size:1rem;margin:0 0 8px}
.foot-col ul{list-style:none;margin:0;padding:0}
.foot-col li{margin:4px 0;font-size:.93rem}
.foot-col a{color:#C6CFDF;text-decoration:none}
.foot-col a:hover{color:var(--brass)}
.foot-fine{border-top:1px solid #33445F;padding-top:14px;font-size:.92rem;color:#AEB9CC}
.foot-copy{font-size:.88rem;color:#8B99B3}

@media (max-width:760px){
  .header-in{flex-direction:column;align-items:flex-start;gap:6px;padding-top:8px;padding-bottom:8px}
  .main-nav{gap:16px;flex-wrap:wrap}
  .main-nav a{white-space:nowrap}
  h1{font-size:1.85rem}
  .tool-grid{grid-template-columns:1fr}
  .tool-out{grid-template-columns:130px 1fr}
  .note-hero{grid-template-columns:150px 1fr}
  .main-nav{gap:13px}
  .brand-name{font-size:1.1rem}
  .chart-table td.words{display:none}
  .chart-table th.words{display:none}
}
@media print{
  .site-header,.site-footer,.tool-card,.prev-next,.report-line,.btn{display:none!important}
  body{background:#fff}
}

/* chart-family cross-links (euphonium / baritone) */
.chart-links{font-size:.98rem;color:var(--ink-soft);margin:.4em 0 1em}
.chart-link{font-weight:600}
.chart-link.on{color:var(--ink);border-bottom:2px solid var(--brass)}

/* batch 13: download actions, guide body */
.dl-actions{display:flex;gap:12px;flex-wrap:wrap;margin:14px 0 6px}
.dl-actions .btn{margin-top:0}
.guide-body h2{margin-top:1.5em}
.guide-body li{margin:.3em 0}
.fc-words{font-size:.85rem;color:var(--ink-soft);margin-top:4px}
.alt-cell{margin-top:8px;border-top:1px dashed var(--line);padding-top:6px}
.alt-tag{display:inline-block;font-size:.72rem;font-weight:bold;letter-spacing:.05em;text-transform:uppercase;color:var(--brass-deep);margin-bottom:2px}
.link-list{list-style:none;padding:0;margin:.6em 0}
.link-list li{margin:.35em 0}
.note-card .nc-words{display:block;font-size:.85rem;color:var(--ink-soft);margin-top:2px}
.btn.alt{background:var(--cream);color:var(--ink);border:1px solid var(--brass)}