:root {
  --bg: #f5f6f8; --card: #fff; --ink: #14181f; --muted: #5b6472; --line: #e2e5ea;
  --accent: #e4572e; --accent-ink: #fff; --ok: #1f8a4c; --warn: #b26b00; --radius: 12px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0f1216; --card: #171b21; --ink: #e8eaee; --muted: #9aa3b1; --line: #2a3039; color-scheme: dark; }
}
* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--ink); }
main { max-width: 880px; margin: 0 auto; padding: 16px; display: grid; gap: 16px; }
.top { display: flex; justify-content: space-between; align-items: center; padding: 12px 16px; background: var(--card); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 8px; font-size: 1.15rem; }
.by { color: var(--muted); font-size: .8rem; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
h1 { font-size: 1.35rem; margin: 0 0 12px; }
h2 { font-size: 1.1rem; margin: 0 0 8px; }
.tabs { display: flex; gap: 6px; margin-bottom: 12px; flex-wrap: wrap; }
.tabs button { border: 1px solid var(--line); background: transparent; color: var(--ink); padding: 8px 12px; border-radius: 999px; cursor: pointer; }
.tabs button[aria-selected="true"] { background: var(--ink); color: var(--card); border-color: var(--ink); }
form { display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); align-items: end; }
label { display: grid; gap: 4px; font-size: .9rem; color: var(--muted); }
input { font: inherit; padding: 10px 12px; border-radius: 8px; border: 1px solid var(--line); background: var(--bg); color: var(--ink); width: 100%; }
button { font: inherit; }
.primary { background: var(--accent); color: var(--accent-ink); border: 0; padding: 11px 16px; border-radius: 8px; cursor: pointer; font-weight: 600; }
.ghost { background: transparent; border: 1px solid var(--line); color: var(--ink); padding: 6px 10px; border-radius: 8px; cursor: pointer; }
.status { color: var(--muted); min-height: 1.2em; }
.status.err { color: var(--accent); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { border: 1px solid var(--line); background: var(--card); color: var(--ink); border-radius: 999px; padding: 6px 10px; cursor: pointer; font-size: .88rem; }
.chip[aria-pressed="true"] { border-color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent); }
.cat { margin-top: 8px; }
.cat > summary { cursor: pointer; font-weight: 600; padding: 8px 0; }
.part { display: grid; grid-template-columns: 1fr auto; gap: 4px 12px; padding: 10px 0; border-top: 1px solid var(--line); }
.part .name { font-weight: 600; }
.part .meta { color: var(--muted); font-size: .88rem; }
.part .note { color: var(--warn); font-size: .88rem; }
.badge { display: inline-block; font-size: .75rem; padding: 2px 8px; border-radius: 999px; border: 1px solid var(--line); color: var(--muted); }
.badge.oem { border-color: var(--ok); color: var(--ok); }
dialog { width: min(720px, 96vw); border: 0; border-radius: var(--radius); padding: 0; background: var(--card); color: var(--ink); }
dialog::backdrop { background: rgba(0,0,0,.45); }
.dialog-head { display: flex; justify-content: space-between; align-items: center; padding: 14px 16px; border-bottom: 1px solid var(--line); position: sticky; top: 0; background: var(--card); }
#d-body { padding: 16px; display: grid; gap: 14px; }
#d-body ul { margin: 0; padding-left: 18px; }
.offer { display: flex; justify-content: space-between; gap: 12px; padding: 8px 0; border-top: 1px solid var(--line); }
.feedback { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
footer { max-width: 880px; margin: 8px auto 32px; padding: 0 16px; color: var(--muted); font-size: .85rem; }
.channels p { margin: 0; color: var(--muted); }