:root {
  --bg: #f7f8fa; --card: #ffffff; --ink: #14212b; --muted: #5b6b78; --line: #dde3e8; --accent: #0f5e8c;
  --accent-ink: #ffffff; --soft: #eaf2f8; --warn: #8a4b0f; --warn-bg: #fdf3e7; --ok: #1d6b3a; --ok-bg: #e9f6ee;
  --code: #eef1f4;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f151a; --card: #172129; --ink: #e6edf2; --muted: #9aabb8; --line: #2a3843; --accent: #5fb0e0;
    --accent-ink: #0b1216; --soft: #1d2c37; --warn: #f0b878; --warn-bg: #2d2216; --ok: #7fd3a0; --ok-bg: #16281e;
    --code: #22303a;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.55 system-ui, -apple-system, "Segoe UI", sans-serif; }
header { border-bottom: 1px solid var(--line); background: var(--card); }
.bar { max-width: 880px; margin: 0 auto; padding: 14px 16px; display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.brand { font-weight: 700; letter-spacing: .2px; color: var(--ink); text-decoration: none; }
nav { display: flex; gap: 14px; margin-left: auto; align-items: center; }
nav a { color: var(--muted); text-decoration: none; }
nav a.here { color: var(--ink); font-weight: 600; }
main { max-width: 880px; margin: 0 auto; padding: 24px 16px 64px; }
h1 { font-size: 28px; line-height: 1.2; margin: 8px 0 8px; }
h2 { font-size: 20px; margin: 28px 0 10px; }
h3 { font-size: 17px; margin: 18px 0 6px; }
p { margin: 8px 0; }
.lede { color: var(--muted); max-width: 680px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 18px; margin: 16px 0; }
.label { display: inline-block; font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .5px;
  color: var(--accent); background: var(--soft); border-radius: 4px; padding: 2px 8px; }
button, .button { font: inherit; border: 1px solid var(--accent); background: var(--accent); color: var(--accent-ink);
  border-radius: 8px; padding: 9px 16px; cursor: pointer; text-decoration: none; display: inline-block; }
button.secondary, .button.secondary { background: transparent; color: var(--accent); }
button:disabled { opacity: .55; cursor: not-allowed; }
textarea, input[type=text] { width: 100%; font: inherit; color: var(--ink); background: var(--bg); border: 1px solid var(--line);
  border-radius: 8px; padding: 10px 12px; }
textarea { min-height: 84px; resize: vertical; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-top: 10px; }
.muted { color: var(--muted); font-size: 14px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0; }
.chip { font: inherit; font-size: 14px; background: var(--soft); color: var(--ink); border: 1px solid var(--line);
  border-radius: 999px; padding: 6px 12px; cursor: pointer; text-align: left; }
.notice { background: var(--warn-bg); color: var(--warn); border-radius: 8px; padding: 10px 12px; margin: 10px 0; }
.success { background: var(--ok-bg); color: var(--ok); border-radius: 8px; padding: 10px 12px; margin: 10px 0; }
.answer { overflow-wrap: anywhere; }
.answer .table { overflow-x: auto; margin: 10px 0; }
.answer table { border-collapse: collapse; font-size: 14px; min-width: 100%; }
.answer th, .answer td { border-bottom: 1px solid var(--line); padding: 6px 8px; text-align: left; vertical-align: top; }
.answer th { background: var(--soft); }
.answer code, code { background: var(--code); border-radius: 4px; padding: 1px 5px; font-size: 14px; }
.answer blockquote { margin: 8px 0; padding: 4px 12px; border-left: 3px solid var(--accent); color: var(--muted); }
.answer pre, .plain { white-space: pre-wrap; }
.progress { font-size: 14px; color: var(--muted); }
ol.steps { padding-left: 22px; }
ol.steps li { margin: 6px 0; }
.copy { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.copy code { font-size: 15px; padding: 6px 10px; }
footer { max-width: 880px; margin: 0 auto; padding: 0 16px 40px; color: var(--muted); font-size: 13px; }
footer a { color: var(--muted); }
.hidden { display: none !important; }
@media (max-width: 560px) { h1 { font-size: 24px; } nav { margin-left: 0; } }
.first { margin-top: 0; }
.narrow { max-width: 320px; }
.details { font-size: 13px; color: var(--muted); border-top: 1px solid var(--line); margin-top: 16px; padding-top: 10px; }
.answer h4 { font-size: 16px; margin: 20px 0 6px; }
.answer h4:first-child { margin-top: 4px; }
.answer p { margin: 8px 0; line-height: 1.6; }
.answer blockquote { background: var(--soft); border-left: 3px solid var(--accent); border-radius: 0 6px 6px 0;
  color: var(--ink); margin: 8px 0 12px; padding: 8px 12px; }
.answer ul, .answer ol { padding-left: 22px; margin: 8px 0; }
.answer li { margin: 4px 0; }
.answer table td:first-child { white-space: nowrap; font-weight: 600; }
button.linkish { background: none; border: none; color: var(--accent); padding: 6px 0; text-decoration: underline; }
#cancel-step { margin-top: 4px; }