:root {
  --bg: #f5f6f8; --card: #ffffff; --ink: #0f172a; --muted: #5b6475; --line: #e3e6ec;
  --brand: #e8590c; --brand-ink: #ffffff; --link: #1d4ed8;
  --good: #15803d; --good-bg: #dcfce7; --warn: #a16207; --warn-bg: #fef3c7; --bad: #b91c1c; --bad-bg: #fee2e2;
  --shadow: 0 1px 2px rgba(15, 23, 42, .06), 0 4px 16px rgba(15, 23, 42, .05);
  --radius: 14px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0d1117; --card: #161b22; --ink: #e6edf3; --muted: #9aa4b2; --line: #2a313c; --link: #7aa7ff;
    --good: #4ade80; --good-bg: #0f2e1b; --warn: #fbbf24; --warn-bg: #33270a; --bad: #f87171; --bad-bg: #3a1414;
    --shadow: none;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--ink); }
body { font-size: 15px; line-height: 1.5; }
a { color: var(--link); }
button { font: inherit; cursor: pointer; }
.topbar { display: flex; align-items: center; gap: 12px; padding: 12px 20px; background: var(--card); border-bottom: 1px solid var(--line); }
.topbar img { height: 26px; }
.topbar .product { font-weight: 800; font-size: 16px; }
.topbar .spacer { flex: 1; }
.topbar .who { color: var(--muted); font-size: 13px; }
.option-tag { position: fixed; right: 14px; bottom: 14px; background: #111827; color: #fff; font-size: 12px; font-weight: 700; padding: 6px 12px; border-radius: 999px; z-index: 50; letter-spacing: .03em; }
.btn { border: 1px solid var(--line); background: var(--card); color: var(--ink); border-radius: 10px; padding: 10px 16px; font-weight: 600; }
.btn.primary { background: var(--brand); border-color: var(--brand); color: var(--brand-ink); }
.btn.big { padding: 14px 22px; font-size: 16px; border-radius: 12px; }
.btn:disabled { opacity: .5; cursor: default; }
input[type=text] { width: 100%; font: inherit; border: 1px solid var(--line); background: var(--card); color: var(--ink); border-radius: 10px; padding: 12px 14px; }
input[type=text]:focus { outline: 2px solid var(--brand); outline-offset: 1px; border-color: transparent; }
.pill { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 999px; white-space: nowrap; }
.pill.good { background: var(--good-bg); color: var(--good); } .pill.trevor { background: var(--warn-bg); color: var(--warn); } .pill.fix { background: var(--bad-bg); color: var(--bad); }
.muted { color: var(--muted); }
@media (max-width: 640px) { .topbar { padding: 10px 16px; } }