:root {
  --bg: #f6f3ee; --card: #ffffff; --ink: #1c1a17; --muted: #6b655c; --line: #e5ded3;
  --brand: #0f6b4f; --brand-ink: #ffffff; --soft: #e7f2ec; --warn: #b3261e; --held: #9a5b00; --held-bg: #fdf1dc;
  --radius: 14px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #12110f; --card: #1c1a17; --ink: #f2eee8; --muted: #a39b8f; --line: #2e2a25;
    --brand: #3fbf8f; --brand-ink: #0b1a14; --soft: #17302a; --warn: #f2b8b5; --held: #f0c06a; --held-bg: #33280f;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.5 "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif; }
a { color: var(--brand); }
.wrap { max-width: 720px; margin: 0 auto; padding: 16px; }
header.top { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 16px; max-width: 720px; margin: 0 auto; }
.logo { font-weight: 800; font-size: 20px; letter-spacing: -0.02em; }
.logo span { color: var(--brand); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; margin: 0 0 14px; }
h1 { font-size: 26px; line-height: 1.2; margin: 8px 0 6px; letter-spacing: -0.02em; }
h2 { font-size: 18px; margin: 0 0 6px; }
p.sub, .muted { color: var(--muted); margin: 0 0 14px; font-size: 15px; }
label { display: block; font-weight: 600; font-size: 14px; margin: 12px 0 6px; }
input, textarea, select { width: 100%; padding: 12px; border: 1px solid var(--line); border-radius: 10px; background: var(--bg); color: var(--ink); font: inherit; }
textarea { min-height: 260px; resize: vertical; font-size: 14px; line-height: 1.45; }
button, .btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 0; border-radius: 10px; padding: 12px 18px; font: 600 15px/1 inherit; cursor: pointer; background: var(--brand); color: var(--brand-ink); text-decoration: none; min-height: 44px; }
button.ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
button.danger { background: transparent; color: var(--warn); border: 1px solid var(--line); }
button:disabled { opacity: .55; cursor: default; }
.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.row > * { flex: 0 0 auto; }
.grow { flex: 1 1 200px; }
.tabs { display: flex; gap: 6px; overflow-x: auto; padding: 4px 16px 10px; max-width: 720px; margin: 0 auto; scrollbar-width: none; }
.tabs button { background: transparent; color: var(--muted); border: 1px solid var(--line); padding: 9px 14px; min-height: 40px; white-space: nowrap; }
.tabs button.on { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.pill { display: inline-block; padding: 3px 10px; border-radius: 99px; font-size: 13px; font-weight: 600; background: var(--soft); color: var(--brand); }
.pill.off { background: var(--line); color: var(--muted); }
.pill.held { background: var(--held-bg); color: var(--held); }
.code { font: 700 34px/1.1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .08em; text-align: center; padding: 18px; border: 2px dashed var(--brand); border-radius: var(--radius); margin: 12px 0; background: var(--soft); color: var(--ink); word-break: break-all; }
ol.steps { padding-left: 20px; margin: 8px 0 0; }
ol.steps li { margin: 6px 0; }
.err { color: var(--warn); font-size: 14px; min-height: 20px; margin-top: 8px; }
.ok { color: var(--brand); font-size: 14px; min-height: 20px; margin-top: 8px; }
.chat { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 12px 0; border-top: 1px solid var(--line); }
.chat:first-child { border-top: 0; }
.chat .who { font-weight: 600; overflow: hidden; text-overflow: ellipsis; }
.log { max-height: 320px; overflow-y: auto; font-size: 14px; background: var(--bg); border-radius: 10px; padding: 10px; margin-top: 10px; }
.log div { margin: 4px 0; }
.log b { font-weight: 700; }
.switch { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.switch input { width: 52px; height: 30px; accent-color: var(--brand); }
.hidden { display: none !important; }
.center { text-align: center; }