:root {
  --bg: #1b1c1e;
  --panel: #242528;
  --panel-2: #2c2d31;
  --lane: #1f2023;
  --lane-alt: #222326;
  --line: #36373c;
  --line-2: #45474d;
  --text: #dcdcdc;
  --dim: #8e9096;
  --faint: #5f6167;
  --accent: #ffa529;
  --accent-ink: #1b1c1e;
  --add: #8fe36a;
  --del: #ff5f57;
  --chg: #6fb4ff;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  --sans: "IBM Plex Sans", system-ui, sans-serif;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); font: 14px/1.45 var(--sans); }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }
button, input, textarea, select { font: inherit; color: inherit; }
h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: -0.01em; }
h1 { font-size: 22px; }
h2 { font-size: 15px; }
h3 { font-size: 13px; }
.mono { font-family: var(--mono); }
.dim { color: var(--dim); }
.faint { color: var(--faint); }
.small { font-size: 12px; }
.label { font: 600 10.5px/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--dim); }
.row { display: flex; gap: 10px; align-items: center; }
.row.wrap { flex-wrap: wrap; }
.grow { flex: 1; min-width: 0; }
.right { margin-left: auto; }
.hide { display: none !important; }
.ellip { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ---------- top bar (control-bar feel) */
.bar {
  position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 18px;
  height: 44px; padding: 0 16px; background: #141516; border-bottom: 1px solid #000;
}
.brand { display: flex; align-items: center; gap: 8px; font: 600 13px var(--mono); letter-spacing: 0.18em; }
.brand svg { fill: var(--accent); }
.nav { display: flex; gap: 2px; }
.nav a { padding: 5px 10px; color: var(--dim); font-size: 13px; }
.nav a.on, .nav a:hover { color: var(--text); }
.search { flex: 1; max-width: 340px; }
.search input { width: 100%; height: 28px; padding: 0 10px; background: #0e0f10; border: 1px solid var(--line); outline: none; }
.search input:focus { border-color: var(--accent); }
.who { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.avatar { display: inline-grid; place-items: center; width: 22px; height: 22px; font: 600 11px var(--mono); color: #111; flex: none; }

/* ---------- controls */
.btn {
  display: inline-flex; align-items: center; gap: 6px; height: 28px; padding: 0 12px; cursor: pointer;
  background: var(--panel-2); border: 1px solid var(--line-2); color: var(--text); font-size: 13px; white-space: nowrap;
}
.btn:hover { border-color: #666; color: var(--text); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 600; }
.btn.primary:hover { filter: brightness(1.08); }
.btn.ghost { background: transparent; border-color: transparent; color: var(--dim); }
.btn.ghost:hover { color: var(--text); border-color: var(--line-2); }
.btn.danger { color: var(--del); }
.btn.sm { height: 24px; padding: 0 8px; font-size: 12px; }
.btn:disabled { opacity: 0.45; cursor: default; }
.field { display: grid; gap: 5px; margin-bottom: 14px; }
.field input, .field textarea, .field select, input.in, select.in, textarea.in {
  width: 100%; padding: 7px 9px; background: #121315; border: 1px solid var(--line-2); outline: none;
}
.field input:focus, .field textarea:focus, .in:focus { border-color: var(--accent); }
textarea { resize: vertical; min-height: 70px; }
select.in, .field select { padding: 5px 8px; height: 30px; }
.seg { display: inline-flex; border: 1px solid var(--line-2); }
.seg button { padding: 4px 10px; background: none; border: 0; cursor: pointer; color: var(--dim); font-size: 12px; }
.seg button.on { background: var(--panel-2); color: var(--text); }
.tag { display: inline-block; padding: 1px 6px; font: 500 11px/16px var(--mono); border: 1px solid var(--line-2); color: var(--dim); }
.tag.priv { color: var(--accent); border-color: #6a4b1e; }
.tag.add { color: var(--add); border-color: #3c5a30; }
.tag.del { color: var(--del); border-color: #6a2e2b; }
.tag.chg { color: var(--chg); border-color: #2d4a6a; }
.tag.open { color: var(--add); border-color: #3c5a30; }
.tag.merged { color: #c49bff; border-color: #4e3a6c; }
.tag.closed { color: var(--dim); }

/* ---------- layout */
#view { padding: 0 0 80px; }
.wrap { max-width: 1320px; margin: 0 auto; padding: 0 20px; }
.page-head { padding: 22px 0 0; }
.cols { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 24px; align-items: start; }
.panel { background: var(--panel); border: 1px solid var(--line); }
.panel > .ph { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-bottom: 1px solid var(--line); }
.panel > .pb { padding: 12px; }
.side .panel { margin-bottom: 16px; }
.empty { padding: 40px 20px; text-align: center; color: var(--dim); }
.tabs { display: flex; gap: 0; margin-top: 18px; border-bottom: 1px solid var(--line); }
.tabs a { padding: 9px 14px; color: var(--dim); border-bottom: 2px solid transparent; margin-bottom: -1px; font-size: 13px; }
.tabs a.on { color: var(--text); border-bottom-color: var(--accent); }
.tabs a .n { font: 11px var(--mono); color: var(--faint); margin-left: 4px; }
.crumb { font-size: 20px; font-weight: 400; }
.crumb b { font-weight: 600; }
.sub { margin-top: 4px; color: var(--dim); font-size: 13px; }
.section { margin-top: 20px; }

/* ---------- LCD transport strip */
.transport { display: flex; flex-wrap: wrap; gap: 0; border: 1px solid #000; background: #111214; margin-top: 16px; }
.lcd { padding: 6px 14px 7px; border-right: 1px solid #2a2b2e; min-width: 78px; }
.lcd .label { font-size: 9.5px; }
.lcd .v { font: 500 17px/1.25 var(--mono); color: var(--accent); white-space: nowrap; }
.lcd .v.plain { color: var(--text); font-size: 14px; line-height: 1.55; }
.transport .play { display: flex; align-items: center; gap: 10px; padding: 0 12px; margin-left: auto; border-left: 1px solid #2a2b2e; }
.playbtn { width: 30px; height: 30px; display: grid; place-items: center; background: var(--panel-2); border: 1px solid var(--line-2); cursor: pointer; }
.playbtn svg { fill: var(--text); }
.playbtn.on svg { fill: var(--accent); }

/* ---------- arrangement */
.arr { position: relative; border: 1px solid #000; background: var(--lane); margin-top: 12px; user-select: none; }
.arr-tools { display: flex; align-items: center; gap: 8px; padding: 6px 8px; background: var(--panel); border-bottom: 1px solid #000; }
.arr-body { display: grid; grid-template-columns: 200px minmax(0, 1fr); }
.arr-heads { border-right: 1px solid #000; background: var(--panel); }
.arr-heads .rh { height: 40px; border-bottom: 1px solid #000; display: flex; align-items: flex-end; padding: 0 8px 4px; }
.th { display: flex; align-items: center; gap: 6px; padding: 0 8px 0 0; border-bottom: 1px solid #17181a; font-size: 12px; cursor: default; overflow: hidden; }
.th .sw { width: 6px; align-self: stretch; flex: none; }
.th .nm { flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.th .k { font: 10px var(--mono); color: var(--faint); }
.th.group { background: #2d2e32; font-weight: 600; cursor: pointer; }
.th.muted .nm { color: var(--faint); }
.th.gone .nm { text-decoration: line-through; color: var(--del); }
.th.new .nm::after { content: " new"; font: 600 10px var(--mono); color: var(--add); }
.th .caret { width: 10px; color: var(--dim); font-size: 9px; flex: none; }
.arr-scroll { overflow-x: auto; overflow-y: hidden; position: relative; }
.arr-scroll canvas { position: sticky; left: 0; display: block; }
.arr-scroll::-webkit-scrollbar { height: 10px; }
.arr-scroll::-webkit-scrollbar-thumb { background: #3b3c41; }
.arr-scroll::-webkit-scrollbar-track { background: #151617; }
.tip { position: fixed; z-index: 50; pointer-events: none; background: #0c0d0e; border: 1px solid var(--line-2); padding: 5px 8px; font-size: 12px; max-width: 320px; display: none; }
.legend { display: flex; gap: 12px; font-size: 12px; color: var(--dim); }
.legend i { display: inline-block; width: 10px; height: 10px; margin-right: 5px; vertical-align: -1px; }

/* ---------- lists */
.list > * { border-bottom: 1px solid var(--line); }
.list > *:last-child { border-bottom: 0; }
.card { display: block; padding: 14px 14px 13px; }
.card:hover { background: #28292c; color: inherit; }
.card .t { font-weight: 600; font-size: 15px; }
.card .meta { display: flex; gap: 14px; margin-top: 8px; font: 12px var(--mono); color: var(--dim); flex-wrap: wrap; }
.grid-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.grid-cards::after { content: ""; background: var(--bg); grid-column: auto / -1; }
.grid-cards .card { background: var(--panel); }
.grid-cards .card:hover { background: #2a2b2f; }
.spark { display: flex; gap: 1px; height: 18px; align-items: flex-end; margin-top: 10px; }
.spark i { flex: 1; }

.commit { display: grid; grid-template-columns: 14px minmax(0, 1fr) auto; gap: 12px; padding: 11px 14px; align-items: start; }
.commit .dot { width: 9px; height: 9px; border: 2px solid var(--accent); border-radius: 50%; margin-top: 5px; background: var(--bg); }
.commit .dot.merge { border-color: #c49bff; }
.commit .msg { font-weight: 500; }
.commit .hl { font: 12px var(--mono); color: var(--dim); margin-top: 3px; }
.commit .by { font-size: 12px; color: var(--faint); margin-top: 4px; }
.commit .acts { display: flex; gap: 4px; align-items: center; }
.sha { font: 12px var(--mono); color: var(--chg); }
.day { padding: 6px 14px; background: #202124; font: 600 11px var(--mono); color: var(--dim); letter-spacing: 0.06em; text-transform: uppercase; }

.feed-item { display: grid; grid-template-columns: 22px minmax(0, 1fr); gap: 10px; padding: 10px 12px; font-size: 13px; }
.feed-item .when { font: 11px var(--mono); color: var(--faint); }

.need { display: flex; align-items: center; gap: 8px; padding: 5px 0; font-size: 13px; }
.need .fmt { font: 10px var(--mono); color: var(--faint); border: 1px solid var(--line-2); padding: 0 4px; }
.need .uses { margin-left: auto; font: 11px var(--mono); color: var(--faint); }
.status-dot { width: 7px; height: 7px; flex: none; }

/* ---------- changes */
.changes .tc { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 14px; padding: 7px 12px; border-bottom: 1px solid var(--line); font-size: 13px; }
.changes .tc:last-child { border-bottom: 0; }
.changes .tc .tn { display: flex; gap: 7px; align-items: center; min-width: 0; }
.changes .tc ul { margin: 0; padding: 0; list-style: none; }
.changes .tc li { padding: 1px 0; }
.changes .tc li::before { content: "\2022"; color: var(--faint); margin-right: 7px; }
.changes .tc li.k-device\+::before, .changes .tc li.k-new::before { content: "+"; color: var(--add); }
.changes .tc li.k-device-::before { content: "\2212"; color: var(--del); }
.song-changes { display: flex; flex-wrap: wrap; gap: 6px; }
.song-changes span { padding: 3px 9px; background: #17181a; border: 1px solid var(--line-2); font: 12px var(--mono); }

/* ---------- files */
.files { width: 100%; border-collapse: collapse; font-size: 13px; }
.files td { padding: 6px 12px; border-bottom: 1px solid var(--line); }
.files tr:hover td { background: #28292c; }
.files td.sz { text-align: right; font: 12px var(--mono); color: var(--dim); width: 110px; }
.files td.ic { width: 30px; color: var(--dim); }
.files .dir td { color: var(--dim); background: #202124; font: 600 11px var(--mono); letter-spacing: 0.04em; }
.mini-play { width: 20px; height: 20px; display: inline-grid; place-items: center; background: none; border: 1px solid var(--line-2); cursor: pointer; padding: 0; }
.mini-play svg { fill: var(--dim); }
.mini-play.on svg { fill: var(--accent); }

/* ---------- push */
.drop { border: 1px dashed #55575d; background: #1f2023; padding: 44px 20px; text-align: center; cursor: pointer; }
.drop.over { border-color: var(--accent); background: #262420; }
.drop .big { font-size: 17px; font-weight: 600; }
.prog { height: 4px; background: #111; margin-top: 8px; overflow: hidden; }
.prog > i { display: block; height: 100%; width: 0; background: var(--accent); transition: width 0.15s; }
.scan { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); margin: 14px 0; }
.scan > div { background: var(--panel); padding: 10px 12px; }
.scan .v { font: 500 18px var(--mono); }

/* ---------- comments */
.comment { padding: 10px 12px; border-bottom: 1px solid var(--line); font-size: 13px; }
.comment:last-child { border-bottom: 0; }
.comment .hd { display: flex; gap: 8px; align-items: center; font-size: 12px; color: var(--dim); }
.comment .at { font: 600 11px var(--mono); color: #111; background: var(--accent); padding: 0 5px; cursor: pointer; }
.comment .bd { margin-top: 4px; white-space: pre-wrap; word-wrap: break-word; }
.composer { padding: 10px 12px; border-top: 1px solid var(--line); }
.composer textarea { min-height: 54px; }

/* ---------- auth / hero */
.auth { max-width: 380px; margin: 60px auto; }
.hero { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 40px; padding: 48px 0 36px; border-bottom: 1px solid var(--line); align-items: center; }
.hero h1 { font-size: 38px; line-height: 1.08; letter-spacing: -0.025em; }
.hero p { color: var(--dim); font-size: 16px; max-width: 520px; }
.hero .demo { font: 12.5px/1.7 var(--mono); background: #111214; border: 1px solid #000; padding: 14px 16px; color: var(--dim); }
.hero .demo b { color: var(--text); font-weight: 500; }
.hero .demo .a { color: var(--add); }
.hero .demo .d { color: var(--del); }
.hero .demo .c { color: var(--accent); }

#toast { position: fixed; bottom: 18px; left: 50%; transform: translateX(-50%); z-index: 60; }
#toast div { background: #0c0d0e; border: 1px solid var(--line-2); border-left: 3px solid var(--accent); padding: 9px 14px; margin-top: 6px; font-size: 13px; box-shadow: 0 6px 20px rgba(0,0,0,.5); }
#toast div.bad { border-left-color: var(--del); }

@media (max-width: 960px) {
  .cols { grid-template-columns: minmax(0, 1fr); }
  .hero { grid-template-columns: minmax(0, 1fr); }
  .arr-body { grid-template-columns: 120px minmax(0, 1fr); }
  .changes .tc { grid-template-columns: minmax(0, 1fr); gap: 4px; }
  .scan { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .bar { gap: 10px; padding: 0 12px; }
  .nav, .search { display: none; }
  .wrap { padding: 0 12px; }
  .hero h1 { font-size: 28px; }
}