/* base16384 web */
:root {
  --bg: #f7f6f3; --panel: #ecebe7; --ink: #1b1d21; --mute: #555b63; --line: #d9d8d3; --edge: #767c85;
  --accent: #a8392a; --on-accent: #f7f6f3; --bar: #6b7581; --ok: #2e6b3a; --shade-l: 26%;
  --sans: system-ui, sans-serif; --mono: ui-monospace, monospace; --cjk: serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #17181b; --panel: #222429; --ink: #e9e7e2; --mute: #a6abb3; --line: #33363c; --edge: #6b7079;
    --accent: #ef7a62; --on-accent: #17181b; --bar: #8f99a5; --ok: #8fcf98; --shade-l: 75%; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #17181b; --panel: #222429; --ink: #e9e7e2; --mute: #a6abb3; --line: #33363c; --edge: #6b7079;
  --accent: #ef7a62; --on-accent: #17181b; --bar: #8f99a5; --ok: #8fcf98; --shade-l: 75%; color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0 auto; max-width: 1180px; padding: 0 16px 48px; background: var(--bg); color: var(--ink); font: 16px/1.55 var(--sans); }
a { color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
[hidden] { display: none !important; }
.sr, .skip:not(:focus) { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip:focus { position: absolute; top: 8px; left: 8px; background: var(--bg); padding: 4px 8px; z-index: 10; }
.sc, .sc-h { font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: var(--mute); font-weight: 600; }
.sc-h { margin: 1.4rem 0 .5rem; }
.hint { color: var(--mute); font-size: .85rem; margin: .3rem 0; }
.lede { max-width: 48em; margin-top: 0; }

/* masthead */
.masthead { display: flex; align-items: center; gap: 14px; padding: 26px 0 16px; flex-wrap: wrap; }
.logo { width: 48px; height: 48px; border-radius: 8px; background: var(--ink); color: var(--bg); display: grid; place-items: center; font: 30px/1 var(--cjk); flex: none; }
.title { flex: 1 1 220px; min-width: 0; }
h1 { margin: 0; font-size: 1.8rem; line-height: 1.1; font-weight: 700; letter-spacing: -.01em; }
h1 .thin { font-weight: 400; color: var(--mute); }
.sub { margin: 3px 0 0; color: var(--mute); }
.prefs { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

/* controls */
button, select, input, textarea { font: inherit; color: inherit; }
select, input[type="search"], input[type="number"] { background: var(--bg); border: 1px solid var(--edge); border-radius: 5px; padding: 4px 8px; min-height: 34px; }
input[type="number"] { width: 5.5em; }
.seg { display: inline-flex; border: 1px solid var(--edge); border-radius: 6px; overflow: hidden; }
.seg button { background: none; border: 0; padding: 4px 12px; min-height: 34px; cursor: pointer; color: var(--mute); }
.seg button + button { border-left: 1px solid var(--edge); }
.seg button[aria-pressed="true"] { background: var(--ink); color: var(--bg); }
.seg.big button { padding: 6px 18px; font-size: 1.02rem; }
.ghost, .button, .primary { background: none; border: 1px solid var(--edge); border-radius: 6px; padding: 5px 12px; cursor: pointer; min-height: 34px; display: inline-flex; align-items: center; gap: 6px; }
.primary { background: var(--accent); color: var(--on-accent); border-color: var(--accent); font-weight: 600; }
.primary:disabled { opacity: .55; cursor: progress; }
.link { background: none; border: 0; padding: 4px 2px; cursor: pointer; color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.link:disabled { color: var(--mute); cursor: default; text-decoration: none; }
label.inline { display: inline-flex; gap: 8px; align-items: center; }

/* tabs */
.tabs { display: flex; gap: 4px; box-shadow: inset 0 -1px var(--line); margin-bottom: 22px; overflow-x: auto; overflow-y: hidden; scrollbar-width: none; }
.tabs button { background: none; border: 0; border-bottom: 2px solid transparent; padding: 8px 14px 9px; cursor: pointer; color: var(--mute); white-space: nowrap; }
.tabs button[aria-selected="true"] { color: var(--ink); border-bottom-color: var(--accent); }

/* workbench */
#work { display: grid; grid-template-columns: minmax(0, 1fr) 230px; gap: 0 28px; }
#work > :not(.inspector) { grid-column: 1; }
.inspector { grid-column: 2; grid-row: 1 / span 7; align-self: start; position: sticky; top: 16px; border-left: 1px solid var(--line); padding-left: 20px; min-height: 200px; }
.toolbar { display: flex; flex-wrap: wrap; gap: 10px 14px; align-items: center; margin-bottom: 14px; }
.presets { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; margin-left: auto; }
.panes { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.pane { min-width: 0; }
.pane-head { display: flex; align-items: center; gap: 10px; min-height: 36px; margin-bottom: 6px; flex-wrap: wrap; }
.pane-head .actions { margin-left: auto; display: flex; gap: 10px; }
#clear { margin-left: auto; }
textarea, .output, .file { width: 100%; min-height: 230px; border: 1px solid var(--edge); border-radius: 8px; background: var(--panel); padding: 12px 14px; margin: 0; }
textarea { resize: vertical; display: block; font-size: 1rem; line-height: 1.6; }
textarea.cjk { font: 1.3rem/1.7 var(--cjk); }
textarea.mono { font-family: var(--mono); font-size: .9rem; }
.drop.over textarea, .drop.over .file { border-color: var(--accent); border-style: dashed; }
.file { display: flex; flex-direction: column; justify-content: center; align-items: flex-start; gap: 8px; }
.file p { margin: 0; overflow-wrap: anywhere; }
.output { font: 1.4rem/1.75 var(--cjk); white-space: pre-wrap; overflow-wrap: anywhere; max-height: 60vh; overflow: auto; }
.output.mono { font: .9rem/1.6 var(--mono); }
.output.plain { font: 1rem/1.6 var(--sans); }
.output .empty { color: var(--mute); font: italic .95rem var(--sans); }
.output .k { border-radius: 3px; }
.output .k:hover, .output .k.on { background: color-mix(in srgb, var(--accent) 18%, transparent); }
.output .m { color: var(--accent); }
.output .bad { background: var(--accent); color: var(--on-accent); border-radius: 3px; }
.problems:empty { display: none; }
.problems { margin-top: 8px; font-size: .9rem; }
.problems p { margin: 4px 0; padding-left: 12px; border-left: 3px solid var(--accent); }
.problems .ok { border-left-color: var(--ok); color: var(--mute); }

.options { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin-top: 22px; }
fieldset { border: 0; border-top: 1px solid var(--line); margin: 0; padding: 10px 0 0; min-width: 0; }
fieldset[disabled] { opacity: .45; }
legend { font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: var(--accent); font-weight: 600; padding: 0 8px 0 0; }
fieldset label { display: flex; flex-direction: column; align-items: flex-start; gap: 3px; margin: 10px 0; }
fieldset label > span { font-size: .9rem; }
fieldset label.check { flex-direction: row; align-items: center; gap: 8px; margin: 6px 0; }
fieldset label.check > span { font-size: 1rem; }
fieldset select { max-width: 100%; }
.check input { width: 18px; height: 18px; accent-color: var(--accent); margin: 0; }

.stats { display: flex; flex-wrap: wrap; gap: 6px 28px; margin: 22px 0 6px; padding: 12px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.stats div { min-width: 96px; }
.stats dt { font-size: .68rem; letter-spacing: .12em; text-transform: uppercase; color: var(--mute); }
.stats dd { margin: 0; font-size: 1.2rem; font-variant-numeric: tabular-nums; }
.stats dd small { font-size: .8rem; color: var(--mute); }

.map { margin: 16px 0 0; }
.map canvas { width: 100%; max-width: 512px; height: auto; image-rendering: pixelated; border: 1px solid var(--edge); border-radius: 4px; display: block; background: var(--panel); }

.inspector .big { font: 5rem/1 var(--cjk); margin: 6px 0 10px; }
.inspector dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 4px 12px; font-size: .9rem; }
.inspector dt { color: var(--mute); }
.inspector dd { margin: 0; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.inspector .mono { font-family: var(--mono); font-size: .82rem; white-space: nowrap; }

/* benchmark */
#bench-results { overflow-x: auto; }
#bench-results table { border-collapse: collapse; width: 100%; font-variant-numeric: tabular-nums; }
#bench-results th, #bench-results td { text-align: left; padding: 7px 10px 7px 0; border-bottom: 1px solid var(--line); vertical-align: middle; }
#bench-results th { font-weight: 600; font-size: .85rem; color: var(--mute); }
#bench-results th.n { text-align: right; }
#bench-results td.n { text-align: right; white-space: nowrap; width: 7em; }
#bench-results .barcell { width: 40%; min-width: 120px; }
#bench-results th[scope="row"] { font-weight: 500; white-space: nowrap; }
#bench-results .bar { height: 14px; border-radius: 3px; background: var(--bar); min-width: 2px; }
#bench-results .bar.us { background: var(--accent); }
#bench-results .note { color: var(--mute); font-size: .85rem; }

/* alphabet */
.alpha-body { display: grid; grid-template-columns: minmax(0, 1fr) 230px; gap: 28px; }
.alpha-body .inspector { grid-column: 2; grid-row: 1; }
#alpha-search { flex: 1 1 200px; max-width: 280px; }
.grid { display: grid; grid-template-columns: repeat(16, minmax(0, 1fr)); gap: 3px; }
.cell { background: var(--panel); border: 1px solid transparent; border-radius: 4px; cursor: pointer; color: var(--ink); padding: 3px 0 1px; display: flex; flex-direction: column; align-items: center; min-width: 0; }
.cell b { font: 1.35rem/1.2 var(--cjk); }
.cell small { font: .6rem var(--mono); color: var(--mute); }
.cell:hover, .cell.on { border-color: var(--accent); }
.markers { display: flex; gap: 6px; flex-wrap: wrap; }
.markers button { min-width: 2.6rem; height: 2.6rem; font: 1.3rem/1 var(--cjk); background: var(--panel); color: var(--accent); border: 1px solid var(--edge); border-radius: 4px; cursor: pointer; }

footer { margin-top: 48px; color: var(--mute); font-size: .85rem; max-width: 56em; border-top: 1px solid var(--line); padding-top: 12px; }
footer .small { font-size: .8rem; }
.toast { position: fixed; left: 50%; bottom: 24px; transform: translate(-50%, 20px); opacity: 0; pointer-events: none; background: var(--ink); color: var(--bg); padding: 8px 16px; border-radius: 6px; transition: .2s; font-size: .9rem; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.noscript { padding: 12px; border: 1px solid var(--accent); }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition: none !important; animation: none !important; } }

@media (max-width: 900px) {
  #work, .alpha-body { grid-template-columns: minmax(0, 1fr); }
  .inspector, .alpha-body .inspector { grid-column: 1; grid-row: auto; position: static; border-left: 0; border-top: 1px solid var(--line); padding: 14px 0 0; margin-top: 18px; min-height: 0; }
  .alpha-body .inspector { grid-row: 1; margin: 0; border-top: 0; border-bottom: 1px solid var(--line); padding: 0 0 14px; }
  .inspector .big { font-size: 3.4rem; float: left; margin: 0 18px 0 0; }
  .options { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .panes, .options { grid-template-columns: minmax(0, 1fr); }
  .presets { margin-left: 0; }
  textarea, .output, .file { min-height: 140px; }
  textarea { height: 150px; }
  .grid { grid-template-columns: repeat(8, minmax(0, 1fr)); }
  #bench-results .barcell { width: 30%; }
}
@media print {
  .prefs, .tabs, .toolbar, .options, .pane-head .actions, .inspector, footer { display: none; }
  .output { max-height: none; border: 0; }
}