/* カポ・移調（/web-metronome/capo/）。色はトークンだけで決める（SCREEN 5 章） */
:root {
  --bg: #f7f5f0; --card: #ffffff; --text: #1f1d1a; --muted: #5d5850; --accent: #8a4b14; --border: #d9d3c7;
  --hl: #fff3d6; --ok: #1d6b3a;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #161513; --card: #22201d; --text: #ece8e1; --muted: #b3ab9f; --accent: #f0a860; --border: #47423b; --hl: #3a3020; --ok: #7fd39b; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text); line-height: 1.7;
  font-family: "Noto Sans JP", "Noto Sans CJK JP", "Hiragino Sans", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
}
a { color: var(--accent); }
.wrap { max-width: 720px; margin: 0 auto; padding: 12px 16px 32px; }
.top { display: flex; flex-wrap: wrap; gap: 4px 16px; font-size: 14px; padding: 8px 0; }
.top a { display: inline-block; padding: 10px 0; min-height: 44px; }
h1 { font-size: 22px; line-height: 1.4; margin: 4px 0 4px; }
.lead { margin: 0 0 12px; color: var(--muted); font-size: 15px; }
h2 { font-size: 18px; margin: 28px 0 8px; }
fieldset { border: 1px solid var(--border); border-radius: 10px; background: var(--card); padding: 12px 14px 14px; margin: 0; }
legend { font-weight: 700; padding: 0 6px; }
label { display: block; font-weight: 600; margin: 10px 0 4px; }
.hint { font-size: 13px; color: var(--muted); margin: 2px 0 0; }
textarea, select {
  font: inherit; color: var(--text); background: var(--bg); border: 1px solid var(--border); border-radius: 8px; width: 100%;
}
textarea { min-height: 128px; padding: 8px 10px; font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, "Noto Sans Mono CJK JP", monospace; font-size: 16px; resize: vertical; }
select { min-height: 44px; padding: 6px 8px; font-size: 16px; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 12px; }
.result { margin-top: 12px; border: 2px solid var(--accent); border-radius: 10px; background: var(--card); padding: 12px 14px; }
.result .big { font-size: 20px; font-weight: 700; margin: 0; }
.result .sub { margin: 2px 0 8px; color: var(--muted); font-size: 14px; }
pre.sheet {
  margin: 0; padding: 10px; background: var(--bg); border-radius: 8px; overflow-x: auto; white-space: pre-wrap; word-break: break-word;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, "Noto Sans Mono CJK JP", monospace; font-size: 16px; line-height: 1.6;
}
.btns { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0 0; }
button {
  font: inherit; font-size: 15px; min-height: 44px; padding: 8px 14px; border-radius: 8px; border: 1px solid var(--accent);
  background: var(--card); color: var(--accent); cursor: pointer;
}
button.primary { background: var(--accent); color: var(--card); font-weight: 700; }
.note { font-size: 14px; color: var(--muted); margin: 8px 0 0; }
table { border-collapse: collapse; width: 100%; font-size: 15px; background: var(--card); }
th, td { border: 1px solid var(--border); padding: 6px 8px; text-align: left; vertical-align: top; }
th { background: var(--bg); font-weight: 600; }
tr.cur td { background: var(--hl); }
td button[aria-pressed="true"] { background: var(--accent); color: var(--card); font-weight: 700; }
td.shapes { font-family: ui-monospace, Menlo, Consolas, monospace; }
.tag { display: inline-block; font-size: 12px; border: 1px solid var(--ok); color: var(--ok); border-radius: 4px; padding: 0 4px; margin-left: 4px; white-space: nowrap; }
td button { min-height: 40px; padding: 4px 10px; font-size: 14px; white-space: nowrap; }
th, td { word-break: keep-all; }
td.shapes { word-break: normal; }
details { border: 1px solid var(--border); border-radius: 10px; background: var(--card); padding: 0 14px; margin: 12px 0 0; }
details > summary { cursor: pointer; padding: 12px 0; min-height: 44px; font-weight: 600; }
details[open] > summary { border-bottom: 1px solid var(--border); margin-bottom: 8px; }
details > :last-child { margin-bottom: 12px; }
.scroll { overflow-x: auto; }
footer { margin-top: 32px; border-top: 1px solid var(--border); padding-top: 12px; font-size: 14px; }
footer ul { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 0 16px; }
footer a { display: inline-block; padding: 10px 0; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
/* 使い方ページ */
.guide h2 { border-bottom: 1px solid var(--border); padding-bottom: 4px; }
.guide .open { display: inline-block; margin: 4px 0 8px; padding: 12px 20px; border-radius: 8px; background: var(--accent); color: var(--card); font-weight: 700; text-decoration: none; }
@media print {
  ins.adsbygoogle, .google-auto-placed, iframe[id^="aswift"], iframe[id^="google_ads"] { display: none !important; }
  :root { --bg: #fff; --card: #fff; --text: #000; --muted: #333; --border: #999; --hl: #fff; }
  .noprint, .top, footer, fieldset, details, .btns, #capoSection, #diatonicSection { display: none !important; }
  .result { border: 0; padding: 0; }
  pre.sheet { background: #fff; padding: 0; font-size: 12pt; }
  .print-only { display: block !important; }
}
.print-only { display: none; }