:root {
  --bg: #12131c;
  --card: #1c1e2b;
  --line: #2e3145;
  --ink: #e9e7f2;
  --muted: #8d8fa8;
  --gold: #ffcc33;
  --cyan: #4fd1ff;
  --pink: #ff5f7e;
  --green: #6ee7a0;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  line-height: 1.7;
}
header { text-align: center; padding: 28px 16px 8px; }
h1 {
  font-family: "DotGothic16", monospace;
  font-weight: normal;
  font-size: 40px;
  margin: 0;
  color: var(--gold);
  text-shadow: 3px 3px 0 #a3471f;
  letter-spacing: 0.1em;
}
header p { margin: 4px 0 0; color: var(--muted); }
main { max-width: 900px; margin: 0 auto; padding: 8px 16px; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px 20px;
  margin: 16px 0;
}
h2 { font-family: "DotGothic16", monospace; font-weight: normal; font-size: 20px; margin: 0 0 12px; }
h2 small { font-family: inherit; font-size: 13px; color: var(--muted); margin-left: 8px; }
.num {
  display: inline-block; width: 28px; height: 28px; line-height: 28px; text-align: center;
  background: var(--gold); color: #1a1a1a; border-radius: 6px; margin-right: 10px; font-size: 16px;
}
.row { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; margin: 12px 0 0; }
button {
  font: inherit;
  background: #2a2d40;
  color: var(--ink);
  border: 1px solid #3c4060;
  border-radius: 8px;
  padding: 8px 14px;
  cursor: pointer;
}
button:hover { border-color: var(--cyan); }
button.primary { background: var(--gold); color: #1a1a1a; border-color: var(--gold); font-weight: bold; }
button.link { background: none; border: none; color: var(--cyan); padding: 4px 0; text-decoration: underline; margin-top: 8px; }
input[type="number"], #prog {
  font: inherit; background: #10111a; color: var(--ink);
  border: 1px solid #3c4060; border-radius: 8px; padding: 7px 10px;
}
#prog { flex: 1; min-width: 200px; font-family: "DotGothic16", monospace; font-size: 18px; }
input[type="number"] { width: 70px; }
#drop {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  border: 2px dashed #4a4f73; border-radius: 12px; padding: 26px 12px; cursor: pointer; text-align: center;
  transition: background 0.15s, border-color 0.15s;
}
#drop.over { background: #23263a; border-color: var(--gold); }
#drop .big { font-size: 18px; }
#drop small { color: var(--muted); }
.or { color: var(--muted); font-size: 14px; margin: 14px 0 0; }
code { background: #10111a; padding: 1px 6px; border-radius: 4px; }
#info { margin-top: 10px; color: var(--green); }
#info.err { color: var(--pink); }
.seg { display: inline-flex; }
.seg button { border-radius: 0; margin-left: -1px; padding: 6px 12px; }
.seg button:first-child { border-radius: 8px 0 0 8px; }
.seg button:last-child { border-radius: 0 8px 8px 0; }
.seg button.on, .tog.on { background: var(--cyan); color: #10111a; border-color: var(--cyan); }
.tog { padding: 5px 12px; }
.muted { color: var(--muted); font-size: 14px; }

#chords { display: grid; grid-template-columns: repeat(auto-fill, minmax(92px, 1fr)); gap: 8px; }
.bar { border: 1px solid var(--line); border-radius: 8px; padding: 6px; background: #161824; position: relative; }
.bar .n { position: absolute; top: 2px; left: 6px; font-size: 11px; color: var(--muted); }
.bar .chips { display: flex; gap: 4px; margin-top: 12px; }
.chip {
  flex: 1; font-family: "DotGothic16", monospace; font-size: 20px; padding: 4px 2px; text-align: center;
  background: #262a3e; border-radius: 6px; border: 1px solid transparent;
}
.chip.alt { color: var(--gold); }
.chip.cur { border-color: var(--gold); }

#roll { width: 100%; height: 220px; display: block; background: #10111a; border-radius: 8px; border: 1px solid var(--line); }
.actions button { font-size: 16px; }

#keeps { list-style: none; padding: 0; margin: 0; }
#keeps li { display: flex; align-items: center; gap: 10px; padding: 8px 0; border-bottom: 1px solid var(--line); }
#keeps li:last-child { border-bottom: none; }
#keeps .name { flex: 1; font-family: "DotGothic16", monospace; }
#keeps button { padding: 4px 10px; }
footer { text-align: center; color: var(--muted); font-size: 13px; padding: 12px 16px 40px; }

@media (max-width: 560px) {
  h1 { font-size: 32px; }
  .card { padding: 14px; }
}
[hidden] { display: none !important; }
header { position: relative; }
.home {
  position: absolute; left: 16px; top: 14px;
  color: var(--muted); text-decoration: none; font-size: 14px;
  border: 1px solid var(--line); border-radius: 8px; padding: 4px 10px;
}
.home:hover { color: var(--gold); border-color: var(--gold); }
@media (max-width: 560px) { .home { position: static; display: inline-block; margin-bottom: 10px; } }
footer p { margin: 6px auto; max-width: 760px; }
footer a { color: var(--cyan); }
footer span { font-size: 12px; }