:root {
  --bg: #f6f7f9;
  --panel: #ffffff;
  --ink: #14171c;
  --muted: #6b7280;
  --line: #e4e7ec;
  --accent: #1f6feb;
  --ok: #15803d;
  --ok-bg: #ecfdf3;
  --warn: #b45309;
  --warn-bg: #fffbeb;
  --bad: #b42318;
  --bad-bg: #fef3f2;
  --radius: 12px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 22px;
  background: #101828;
  color: #fff;
}
.brand { color: #fff; font-weight: 650; letter-spacing: .2px; }
.brand:hover { text-decoration: none; opacity: .9; }
.nav { display: flex; align-items: center; gap: 16px; font-size: 14px; }
.nav a { color: #d0d5dd; }
.nav a:hover { color: #fff; text-decoration: none; }
.who { color: #98a2b3; font-size: 13px; }

.wrap { max-width: 980px; margin: 26px auto 60px; padding: 0 18px; }

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 24px;
  margin-bottom: 18px;
}
.card.narrow { max-width: 420px; margin: 40px auto; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-bottom: 8px; }

h1 { font-size: 22px; margin: 0 0 10px; }
h2 { font-size: 17px; margin: 0 0 14px; }

.muted { color: var(--muted); }
.small { font-size: 13px; }
.hint { color: var(--muted); font-size: 13px; margin-top: 12px; }
.warn { color: var(--warn); }
.nowrap { white-space: nowrap; }
.break { word-break: break-all; }
.dim { opacity: .55; }
.inline { display: inline; }

.badge {
  background: var(--warn-bg);
  color: var(--warn);
  border: 1px solid #fde68a;
  border-radius: 999px;
  padding: 2px 10px;
  font-size: 12px;
  font-weight: 600;
}

.address {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  background: #f8fafc;
  border: 1px dashed var(--line);
  border-radius: 10px;
  padding: 14px 16px;
  margin: 12px 0 18px;
}
.address code { font-size: 17px; font-weight: 600; word-break: break-all; }

.row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }

.btn-primary, .btn-ghost, .btn-danger {
  font: inherit;
  cursor: pointer;
  border-radius: 9px;
  padding: 9px 16px;
  border: 1px solid transparent;
  transition: .12s ease;
  display: inline-block;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #1a5fd0; text-decoration: none; }
.btn-ghost { background: #fff; border-color: var(--line); color: var(--ink); }
.btn-ghost:hover { background: #f2f4f7; text-decoration: none; }
.btn-danger { background: #fff; border-color: #fecdca; color: var(--bad); }
.btn-danger:hover { background: var(--bad-bg); }

.stack { display: flex; flex-direction: column; gap: 14px; }
label { font-size: 13px; color: var(--muted); display: flex; flex-direction: column; gap: 6px; }
input[type=text], input[type=password] {
  font: inherit;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #fff;
  color: var(--ink);
}
input[type=file] {
  font: inherit;
  font-size: 14px;
  padding: 8px 10px;
  border: 1px dashed var(--line);
  border-radius: 9px;
  background: #fbfcfd;
}
details > summary { cursor: pointer; }
input:focus { outline: 2px solid #c7d7fe; border-color: #a4bcfd; }

.alert {
  background: var(--bad-bg);
  border: 1px solid #fecdca;
  color: var(--bad);
  border-radius: 9px;
  padding: 10px 14px;
  margin-bottom: 14px;
  font-size: 14px;
}

table.grid { width: 100%; border-collapse: collapse; font-size: 14px; }
table.grid th {
  text-align: left;
  font-weight: 600;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .04em;
  padding: 8px 10px 8px 0;
  border-bottom: 1px solid var(--line);
}
table.grid td { padding: 10px 10px 10px 0; border-bottom: 1px solid #f1f3f7; vertical-align: top; }
table.grid tr:last-child td { border-bottom: none; }

code, .mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  font-size: 13px;
}
pre.mono {
  background: #f8fafc;
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 12px 14px;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-word;
  margin: 8px 0 0;
}
pre.preview { max-height: 260px; overflow-y: auto; }

.score-pill {
  display: inline-block;
  min-width: 42px;
  text-align: center;
  background: #eef2ff;
  color: #3538cd;
  border-radius: 7px;
  padding: 2px 8px;
  font-weight: 650;
  font-size: 13px;
}

.score-card { border-left: 6px solid var(--line); }
.score-card.great { border-left-color: var(--ok); background: var(--ok-bg); }
.score-card.good  { border-left-color: #4d7c0f; background: #f7fee7; }
.score-card.mid   { border-left-color: var(--warn); background: var(--warn-bg); }
.score-card.bad   { border-left-color: #c2410c; background: #fff7ed; }
.score-card.awful { border-left-color: var(--bad); background: var(--bad-bg); }

.score-main { display: flex; align-items: center; gap: 26px; flex-wrap: wrap; }
.score-value { font-size: 46px; font-weight: 700; line-height: 1; }
.score-max { font-size: 18px; color: var(--muted); font-weight: 500; }
.score-side h1 { margin: 0 0 4px; }
.score-side p { margin: 0; }

.facts { display: grid; grid-template-columns: 130px 1fr; gap: 6px 14px; margin: 0; font-size: 14px; }
.facts dt { color: var(--muted); }
.facts dd { margin: 0; word-break: break-word; }

ul.marks { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.mark {
  border: 1px solid var(--line);
  border-left: 4px solid var(--line);
  border-radius: 10px;
  padding: 12px 14px;
}
.mark.success { border-left-color: var(--ok); background: #fcfdfc; }
.mark.warning { border-left-color: var(--warn); background: var(--warn-bg); }
.mark.failure { border-left-color: var(--bad); background: var(--bad-bg); }
.mark.neutral { border-left-color: #98a2b3; background: #fbfbfc; }
.mark-head { display: flex; justify-content: space-between; gap: 12px; align-items: baseline; }
.mark-label { font-weight: 650; }
.mark-value { font-variant-numeric: tabular-nums; font-weight: 650; color: var(--muted); }
.mark.success .mark-value { color: var(--ok); }
.mark.failure .mark-value { color: var(--bad); }
.mark-title { margin-top: 2px; }
.mark-details { margin-top: 8px; }
.mark-details summary { cursor: pointer; color: var(--muted); font-size: 13px; }

details.tech {
  border-top: 1px solid var(--line);
  padding: 12px 0;
}
details.tech:first-of-type { border-top: none; }
details.tech summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 14px;
  list-style: none;
}
details.tech summary::before { content: "▸ "; color: var(--muted); }
details.tech[open] summary::before { content: "▾ "; }
details.tech p { margin: 8px 0 0; font-size: 14px; }

.foot {
  text-align: center;
  color: var(--muted);
  font-size: 12px;
  padding: 18px;
  border-top: 1px solid var(--line);
}

@media (max-width: 620px) {
  .facts { grid-template-columns: 1fr; }
  .score-value { font-size: 38px; }
  table.grid { font-size: 13px; }
}