:root {
  --bg: #0f1115;
  --panel: #171a21;
  --panel-2: #1e222b;
  --border: #2a2f3a;
  --text: #e6e8ec;
  --muted: #9aa3b2;
  --accent: #6ea8fe;
  --human: #3fb950;
  --uncertain: #d29922;
  --ai: #f85149;
  --add: #1f6f3f;
  --del: #6f1f28;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
header.site { max-width: 860px; margin: 0 auto; padding: 32px 20px 8px; }
header.site h1 { margin: 0; font-size: 28px; letter-spacing: -0.02em; }
header.site .tag { margin: 6px 0 0; color: var(--muted); }
main { max-width: 860px; margin: 0 auto; padding: 12px 20px 40px; }

.tabs { display: flex; gap: 6px; margin: 14px 0; }
.tab {
  background: var(--panel); color: var(--muted); border: 1px solid var(--border);
  padding: 8px 16px; border-radius: 999px; cursor: pointer; font-size: 14px;
}
.tab.is-active { color: var(--text); border-color: var(--accent); background: var(--panel-2); }

.panel, .controls, .output { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 16px; margin-bottom: 14px; }
.field-label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 6px; }
textarea, input, select {
  width: 100%; background: var(--panel-2); color: var(--text);
  border: 1px solid var(--border); border-radius: 8px; padding: 10px; font: inherit;
}
textarea { resize: vertical; min-height: 120px; }
.counts { text-align: right; color: var(--muted); font-size: 12px; margin-top: 6px; }

.row { display: flex; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
.row label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); }
.row label.grow { flex: 1; min-width: 220px; }
.key-row { align-items: flex-end; }
.hint { font-size: 12px; color: var(--muted); }
.hint a, a { color: var(--accent); }

button.primary {
  background: var(--accent); color: #08101f; border: none; border-radius: 8px;
  padding: 11px 18px; font-weight: 600; cursor: pointer; font-size: 15px;
}
button.primary:disabled { opacity: 0.5; cursor: progress; }
button.ghost {
  background: transparent; color: var(--muted); border: 1px solid var(--border);
  border-radius: 8px; padding: 6px 12px; cursor: pointer; font-size: 13px;
}

.status { min-height: 20px; color: var(--muted); font-size: 14px; padding: 0 4px; }
.status.error { color: var(--ai); }

.output-head { display: flex; justify-content: space-between; align-items: center; }
.output-head h2 { font-size: 16px; margin: 4px 0 10px; }
.output-actions { display: flex; gap: 8px; }
.result { white-space: pre-wrap; word-wrap: break-word; background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px; padding: 14px; }

.meter { margin-bottom: 12px; }
.meter .bar { height: 10px; border-radius: 999px; background: var(--panel-2); overflow: hidden; border: 1px solid var(--border); }
.meter .fill { height: 100%; }
.meter .labels { display: flex; justify-content: space-between; font-size: 13px; margin: 8px 0 4px; }
.meter .note { font-size: 12px; color: var(--uncertain); }
.badge { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 13px; font-weight: 600; }
.badge.human { background: rgba(63,185,80,0.15); color: var(--human); }
.badge.uncertain { background: rgba(210,153,34,0.15); color: var(--uncertain); }
.badge.ai { background: rgba(248,81,73,0.15); color: var(--ai); }

.diff ins { background: var(--add); text-decoration: none; border-radius: 3px; }
.diff del { background: var(--del); border-radius: 3px; }
mark.sent { background: rgba(248,81,73,0.22); border-radius: 3px; }

/* account page */
.home-link { color: inherit; text-decoration: none; }
.site-nav { max-width: 860px; margin: 0 auto; padding: 0 20px; }
.site-nav a { font-size: 14px; }
.auth-form { display: flex; flex-direction: column; gap: 6px; }
.auth-form .field-label { margin-top: 8px; margin-bottom: 2px; }
.auth-form button.primary { margin-top: 14px; align-self: flex-start; }
.checkbox { display: flex; gap: 10px; align-items: flex-start; font-size: 13px; color: var(--muted); margin-top: 12px; }
.checkbox input { width: auto; margin-top: 3px; flex: none; }
.dash-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
.dash-head h2 { font-size: 18px; margin: 0 0 4px; }
.dash-block { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--border); }
.dash-block h3 { font-size: 14px; margin: 0 0 8px; }
.dash-block code { background: var(--panel-2); padding: 1px 5px; border-radius: 4px; font-size: 12px; }
.new-key { background: var(--panel-2); border: 1px solid var(--accent); border-radius: 8px; padding: 10px; font-size: 13px; word-break: break-all; }
.key-list { list-style: none; padding: 0; margin: 12px 0 0; }
.key-list li { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 8px 0; border-top: 1px solid var(--border); font-size: 13px; color: var(--muted); }

.hidden { display: none !important; }
.site-foot { max-width: 860px; margin: 0 auto; padding: 0 20px 40px; }
.disclaimer { font-size: 12px; color: var(--muted); border-top: 1px solid var(--border); padding-top: 14px; }
.legal-links { font-size: 12px; margin-top: 8px; }
.legal-links a { margin: 0 2px; }

/* legal page */
.legal { max-width: 760px; }
.legal h2 { font-size: 20px; margin: 28px 0 8px; padding-top: 18px; border-top: 1px solid var(--border); }
.legal h3 { font-size: 15px; margin: 18px 0 4px; color: var(--text); }
.legal p, .legal li { color: var(--muted); }
.legal code { background: var(--panel-2); padding: 1px 5px; border-radius: 4px; font-size: 13px; color: var(--text); }
.draft-banner { background: var(--panel-2); border: 1px solid var(--uncertain); border-radius: 8px; padding: 12px 14px; font-size: 13px; }
.legal-toc { display: flex; flex-wrap: wrap; gap: 14px; margin: 16px 0; font-size: 14px; }
.code { background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px; padding: 12px; overflow-x: auto; font: 13px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace; white-space: pre; color: var(--text); }