:root {
  --bg: #fbfbfa; --fg: #1d1d1f; --muted: #6e6e73; --line: #e3e3e0; --card: #fff;
  --accent: #2f6fed; --ok: #1f8a4c; --warn: #b26b00; --bad: #c0392b; --chip: #f0f0ee;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #161617; --fg: #f2f2f2; --muted: #9a9aa0; --line: #2c2c2e; --card: #1e1e20; --chip: #2a2a2d; --accent: #5b8cff; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif; }
header { display: flex; align-items: center; gap: 1.5rem; padding: .8rem 1.25rem; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.brand { font-weight: 700; color: var(--fg); text-decoration: none; }
.brand span { font-weight: 400; color: var(--muted); }
nav { display: flex; gap: 1rem; flex: 1; }
nav a { color: var(--muted); text-decoration: none; }
nav a.on { color: var(--fg); font-weight: 600; }
#account { display: flex; gap: .5rem; align-items: center; font-size: 14px; }
main { max-width: 60rem; margin: 0 auto; padding: 1.5rem 1.25rem 4rem; }
footer { text-align: center; color: var(--muted); font-size: 13px; padding: 2rem; }
h1 { font-size: 1.6rem; margin: .2rem 0 1rem; }
h2 { font-size: 1.15rem; margin: 1.6rem 0 .6rem; }
.muted { color: var(--muted); }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr)); gap: .9rem; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 1rem; }
a.card { color: inherit; text-decoration: none; display: block; }
a.card:hover { border-color: var(--accent); }
.card h3 { margin: 0 0 .25rem; font-size: 1.05rem; }
.row { display: flex; gap: .5rem; align-items: center; flex-wrap: wrap; }
.chip { display: inline-block; background: var(--chip); border-radius: 999px; padding: .05rem .55rem; font-size: 12px; }
.chip.risk { color: var(--warn); }
.chip.ok { color: var(--ok); }
.chip.bad { color: var(--bad); }
button, .button { font: inherit; border: 1px solid var(--line); background: var(--card); color: var(--fg); border-radius: 8px; padding: .35rem .8rem; cursor: pointer; text-decoration: none; display: inline-block; }
button.primary, .button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.danger { color: var(--bad); }
button:disabled { opacity: .5; cursor: default; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .45rem .4rem; border-bottom: 1px solid var(--line); vertical-align: top; font-size: 14px; }
pre { background: var(--chip); padding: .7rem; border-radius: 8px; overflow: auto; font-size: 12.5px; white-space: pre-wrap; }
.notice { border-left: 3px solid var(--accent); padding: .6rem .9rem; background: var(--card); border-radius: 6px; margin: 1rem 0; }
.notice.bad { border-color: var(--bad); }
.diff-new { color: var(--warn); font-weight: 600; }
input[type=email], input[type=text] { font: inherit; padding: .35rem .5rem; border: 1px solid var(--line); border-radius: 8px; background: var(--card); color: var(--fg); }
ul.plain { padding-left: 1.1rem; margin: .3rem 0; }
@media (max-width: 600px) { header { gap: .6rem; } nav { order: 3; flex-basis: 100%; } }