:root {
  --bg: #111418; --fg: #e8eaed; --muted: #8b939c; --line: #2a2f36; --card: #181c21;
  --acc: #3b82f6; --ok: #22c55e; --warn: #f59e0b; --bad: #ef4444;
  color-scheme: dark;
  font: 16px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
@media (prefers-color-scheme: light) {
  :root { --bg: #f7f8fa; --fg: #15181c; --muted: #5f6873; --line: #d9dde2; --card: #fff; color-scheme: light; }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; background: var(--bg); color: var(--fg); min-height: 100dvh; }
header { display: flex; align-items: center; gap: 12px; padding: 10px max(14px, env(safe-area-inset-left)); border-bottom: 1px solid var(--line); position: sticky; top: 0; background: var(--bg); z-index: 1; }
.logo { font-size: 18px; letter-spacing: .02em; }
nav { display: flex; gap: 4px; margin-left: auto; background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 3px; }
nav button { border: 0; background: none; color: var(--muted); padding: 6px 14px; border-radius: 7px; font: inherit; cursor: pointer; }
nav button[aria-selected="true"] { background: var(--acc); color: #fff; }
main { max-width: 720px; margin: 0 auto; padding: 14px max(14px, env(safe-area-inset-left)) 40px; }
section { display: flex; flex-direction: column; gap: 12px; }
.seg { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.seg input { position: absolute; opacity: 0; pointer-events: none; }
.seg span { display: block; text-align: center; padding: 9px 0; cursor: pointer; color: var(--muted); }
.seg label + label span { border-left: 1px solid var(--line); }
.seg input:checked + span { background: var(--card); color: var(--fg); font-weight: 600; box-shadow: inset 0 -2px var(--acc); }
.seg input:focus-visible + span { outline: 2px solid var(--acc); outline-offset: -2px; }
textarea { width: 100%; resize: vertical; min-height: 110px; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--line); background: var(--card); color: var(--fg); font: inherit; }
.row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
button.primary { min-width: 112px; padding: 11px 20px; border: 0; border-radius: 10px; background: var(--acc); color: #fff; font: 600 16px/1 inherit; font-family: inherit; cursor: pointer; }
button.primary.stop { background: var(--bad); }
button:disabled { opacity: .5; cursor: default; }
.muted { color: var(--muted); font-size: 14px; }
.status { font-size: 14px; color: var(--muted); min-height: 1.4em; }
.status.ok { color: var(--ok); } .status.warn { color: var(--warn); } .status.bad { color: var(--bad); }
.bar { height: 4px; background: var(--line); border-radius: 2px; overflow: hidden; }
.bar i { display: block; height: 100%; width: 0; background: var(--acc); transition: width .2s linear; }
.meter { width: 64px; height: 6px; background: var(--line); border-radius: 3px; overflow: hidden; }
.meter i { display: block; height: 100%; width: 0; background: var(--ok); }
.meter i.clip { background: var(--bad); }
.out { display: flex; flex-direction: column; gap: 8px; }
.msg { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; }
.msg .meta { font-size: 12px; color: var(--muted); display: flex; gap: 10px; margin-bottom: 4px; }
.msg .meta .v { margin-left: auto; }
.msg .meta .v.ok { color: var(--ok); } .msg .meta .v.bad { color: var(--bad); }
.msg .body { white-space: pre-wrap; overflow-wrap: anywhere; }
.gap { display: inline-block; min-width: 2.2em; height: 1em; vertical-align: -2px; border-radius: 3px; background: repeating-linear-gradient(45deg, var(--line) 0 4px, transparent 4px 8px); }
.rec { text-decoration: underline dotted var(--muted); }
details summary { color: var(--muted); font-size: 13px; cursor: pointer; }
pre#diag { font-size: 11px; line-height: 1.35; white-space: pre-wrap; color: var(--muted); margin: 6px 0 0; }