:root {
  --bg: #fafafa;
  --surface: #ffffff;
  --surface-2: #f4f4f5;
  --border: #e4e4e7;
  --border-strong: #d4d4d8;
  --text: #18181b;
  --text-muted: #71717a;
  --text-faint: #a1a1aa;
  --accent: #18181b;
  --accent-text: #ffffff;
  --focus: #2563eb;

  --sev-critical: #b91c1c;
  --sev-critical-bg: #fef2f2;
  --sev-high: #c2410c;
  --sev-high-bg: #fff7ed;
  --sev-medium: #a16207;
  --sev-medium-bg: #fefce8;
  --sev-low: #15803d;
  --sev-low-bg: #f0fdf4;
  --sev-info: #3f3f46;
  --sev-info-bg: #f4f4f5;

  --radius: 10px;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Fira Code", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0b0c;
    --surface: #141416;
    --surface-2: #1c1c1f;
    --border: #2a2a2e;
    --border-strong: #3a3a40;
    --text: #fafafa;
    --text-muted: #a1a1aa;
    --text-faint: #71717a;
    --accent: #fafafa;
    --accent-text: #0b0b0c;
    --focus: #60a5fa;

    --sev-critical: #f87171; --sev-critical-bg: #2a1414;
    --sev-high: #fb923c; --sev-high-bg: #2a1c10;
    --sev-medium: #facc15; --sev-medium-bg: #29240f;
    --sev-low: #4ade80; --sev-low-bg: #0f2417;
    --sev-info: #d4d4d8; --sev-info-bg: #1c1c1f;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
  font-size: 15px;
}

.wrap { width: 100%; max-width: 960px; margin: 0 auto; padding: 0 20px; }

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--accent); color: var(--accent-text);
  padding: 8px 14px; border-radius: 0 0 var(--radius) 0; z-index: 100;
}
.skip-link:focus { left: 0; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* Top bar */
.topbar {
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  position: sticky; top: 0; z-index: 10;
}
.topbar-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 60px;
}
.brand { display: flex; align-items: baseline; gap: 10px; }
.brand-mark { font-family: var(--mono); font-weight: 700; font-size: 20px; color: var(--accent); }
.brand-name { font-weight: 650; font-size: 17px; letter-spacing: -0.01em; }
.brand-sub { color: var(--text-faint); font-size: 13px; }
@media (max-width: 520px) { .brand-sub { display: none; } }

/* Intro */
.intro { padding: 40px 0 24px; }
.intro h1 { font-size: 30px; line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 12px; }
.intro p { color: var(--text-muted); max-width: 640px; margin: 0; }
@media (max-width: 520px) { .intro { padding: 28px 0 18px; } .intro h1 { font-size: 24px; } }

/* Panel / form */
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
}
.controls {
  display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 14px;
}
.field { display: flex; flex-direction: column; gap: 6px; }
.field-grow { flex: 1 1 280px; min-width: 240px; }
.field label { font-size: 13px; font-weight: 550; color: var(--text-muted); }
.field .muted { font-weight: 400; color: var(--text-faint); }

select, input[type="url"], input[type="password"], textarea {
  font-family: var(--sans);
  font-size: 14px;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  padding: 9px 11px;
}
select { cursor: pointer; }
textarea {
  width: 100%;
  min-height: 280px;
  resize: vertical;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.5;
  tab-size: 2;
}
.pr-row { display: flex; gap: 8px; }
.pr-row input { flex: 1; min-width: 0; }

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.form-footer {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; margin-top: 14px; flex-wrap: wrap;
}
.actions { display: flex; gap: 8px; flex-wrap: wrap; }
.status { margin: 0; font-size: 13px; color: var(--text-muted); min-height: 1.2em; }
.status.error { color: var(--sev-critical); }
.status.working::after { content: "…"; }

/* Buttons */
.btn {
  font-family: var(--sans); font-size: 14px; font-weight: 550;
  border-radius: 8px; padding: 9px 16px; cursor: pointer;
  border: 1px solid transparent; transition: background .12s, border-color .12s, opacity .12s;
}
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary { background: var(--accent); color: var(--accent-text); }
.btn-primary:not(:disabled):hover { opacity: .85; }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border-strong); }
.btn-ghost:not(:disabled):hover { background: var(--surface-2); }
.btn-danger { background: transparent; color: var(--sev-critical); border-color: var(--border-strong); }
.btn-danger:not(:disabled):hover { background: var(--sev-critical-bg); }

.dot {
  display: inline-block; width: 8px; height: 8px; border-radius: 50%;
  background: var(--text-faint); margin-right: 2px; vertical-align: middle;
}
.dot.ok { background: #16a34a; }

/* Results */
.results { margin: 28px 0 60px; }
.summary-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px; margin-bottom: 18px;
}
.summary-card h2 { margin: 0 0 8px; font-size: 18px; }
.summary-card p { margin: 0; color: var(--text-muted); }
.summary-meta { margin-top: 12px; display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
  font-size: 12px; font-weight: 600; padding: 3px 9px; border-radius: 999px;
  border: 1px solid var(--border-strong); color: var(--text-muted);
}
.chip strong { color: var(--text); }

.cat-group { margin-bottom: 22px; }
.cat-head {
  display: flex; align-items: center; gap: 10px;
  margin: 0 0 10px; font-size: 15px; letter-spacing: -0.01em;
}
.cat-count {
  font-size: 12px; font-weight: 600; color: var(--text-muted);
  background: var(--surface-2); border-radius: 999px; padding: 2px 9px;
}

.finding {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  margin-bottom: 8px;
  overflow: hidden;
}
.finding[open] { border-color: var(--border-strong); }
.finding summary {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 14px; cursor: pointer; list-style: none;
  font-weight: 500;
}
.finding summary::-webkit-details-marker { display: none; }
.finding summary::before {
  content: "▸"; color: var(--text-faint); font-size: 11px;
  transition: transform .12s; flex: none;
}
.finding[open] summary::before { transform: rotate(90deg); }
.finding-title { flex: 1; min-width: 0; }
.finding-lines { font-family: var(--mono); font-size: 12px; color: var(--text-faint); flex: none; }

.sev-badge {
  font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em;
  padding: 2px 8px; border-radius: 5px; flex: none;
}
.sev-critical { color: var(--sev-critical); background: var(--sev-critical-bg); }
.sev-high { color: var(--sev-high); background: var(--sev-high-bg); }
.sev-medium { color: var(--sev-medium); background: var(--sev-medium-bg); }
.sev-low { color: var(--sev-low); background: var(--sev-low-bg); }
.sev-info { color: var(--sev-info); background: var(--sev-info-bg); }

.finding-body { padding: 0 14px 14px 14px; border-top: 1px solid var(--border); padding-top: 12px; }
.finding-detail { margin: 0 0 12px; }
.finding-suggestion h4 { margin: 0 0 6px; font-size: 13px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .04em; }
.suggestion-text { margin: 0 0 10px; }
.suggestion-text:empty { display: none; }
.suggestion-code {
  margin: 0; background: var(--surface-2); border: 1px solid var(--border);
  border-radius: 6px; padding: 12px; overflow-x: auto;
}
.suggestion-code:empty, .finding-suggestion:has(.suggestion-code:empty) .suggestion-code { display: none; }
.suggestion-code code { font-family: var(--mono); font-size: 12.5px; line-height: 1.5; white-space: pre; }

.empty-state {
  text-align: center; padding: 40px 20px; color: var(--text-muted);
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
}
.empty-state strong { color: var(--text); }

.spinner {
  display: inline-block; width: 14px; height: 14px; border-radius: 50%;
  border: 2px solid var(--border-strong); border-top-color: var(--accent);
  animation: spin .7s linear infinite; vertical-align: -2px; margin-right: 6px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Dialog */
.dialog {
  border: 1px solid var(--border-strong); border-radius: var(--radius);
  padding: 0; max-width: 440px; width: calc(100% - 32px);
  background: var(--surface); color: var(--text);
}
.dialog::backdrop { background: rgba(0,0,0,.45); }
.dialog-inner { padding: 22px; display: flex; flex-direction: column; gap: 14px; }
.dialog-inner h2 { margin: 0; font-size: 18px; }
.dialog-inner .muted { margin: 0; }
.dialog-actions { display: flex; gap: 8px; justify-content: flex-end; flex-wrap: wrap; margin-top: 4px; }
.hint { margin: 0; font-size: 12.5px; color: var(--text-faint); min-height: 1em; }
.hint a { color: var(--focus); }

.muted { color: var(--text-muted); font-size: 13px; }
code { font-family: var(--mono); font-size: .9em; }

.footer { border-top: 1px solid var(--border); padding: 22px 0; margin-top: 20px; }
.footer p { margin: 0; color: var(--text-faint); font-size: 13px; max-width: 720px; }