:root {
  --bg: #f4f5f1; --surface: #ffffff; --text: #1d211b; --muted: #5f675a;
  --line: #d8dccf; --accent: #4f6b2d; --accent-text: #ffffff;
  --ok-bg: #e5efd9; --warn-bg: #fbf0d0; --error-bg: #f8dcd8; --danger: #a33a2c;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14170f; --surface: #1d2117; --text: #e6e9df; --muted: #9ba391;
    --line: #333a2a; --accent: #8fb35a; --accent-text: #11140d;
    --ok-bg: #26341a; --warn-bg: #3a3214; --error-bg: #3f1d18; --danger: #e07a68;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--accent); }
code { font-family: ui-monospace, Consolas, monospace; font-size: .92em; word-break: break-all; }
main { max-width: 1000px; margin: 0 auto; padding: 24px 16px 48px; }
.top { display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 12px 16px; border-bottom: 1px solid var(--line); background: var(--surface); }
.brand { font-weight: 700; text-decoration: none; color: var(--text); }
nav { display: flex; gap: 16px; align-items: center; }
footer { text-align: center; padding: 24px; color: var(--muted); font-size: .9em; }
h1 { line-height: 1.2; margin: 0 0 12px; }
h2 { margin: 0 0 12px; font-size: 1.15rem; }
.muted { color: var(--muted); }
.narrow { max-width: 520px; margin: 0 auto; }
.prose { max-width: 720px; }
.hero { padding: 24px 0; max-width: 720px; }
.hero h1 { font-size: clamp(1.8rem, 5vw, 2.6rem); }
.plans { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 10px;
  padding: 20px; margin-bottom: 16px; }
.price { font-size: 2rem; font-weight: 700; margin: 4px 0; }
.price small { font-size: .9rem; font-weight: 400; color: var(--muted); }
.card ul { padding-left: 20px; }
.btn { display: inline-block; background: var(--accent); color: var(--accent-text); border: 1px solid var(--accent);
  padding: 10px 16px; border-radius: 8px; font: inherit; font-weight: 600; cursor: pointer;
  text-decoration: none; margin: 4px 4px 4px 0; }
.btn.ghost { background: transparent; color: var(--accent); }
.btn.danger { background: transparent; color: var(--danger); border-color: var(--danger); }
.btn.small { padding: 4px 10px; font-size: .9em; }
.btn:disabled { opacity: .45; cursor: not-allowed; }
button.link { background: none; border: 0; color: var(--accent); font: inherit; cursor: pointer; text-decoration: underline; padding: 0; }
form.inline { display: inline; }
.stack { display: grid; gap: 14px; }
.row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.row input { flex: 1 1 220px; }
label { display: grid; gap: 4px; font-weight: 600; }
label.check { display: flex; gap: 8px; font-weight: 400; align-items: flex-start; }
input, select { font: inherit; padding: 9px 10px; border: 1px solid var(--line); border-radius: 8px;
  background: var(--bg); color: var(--text); }
.flash { padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; background: var(--ok-bg); }
.flash.warn { background: var(--warn-bg); }
.flash.error { background: var(--error-bg); }
.panel-head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; align-items: flex-end; margin-bottom: 16px; }
.quota { display: grid; gap: 2px; min-width: 180px; text-align: right; }
.quota .big { font-size: 1.8rem; font-weight: 700; }
.quota.full .big { color: var(--danger); }
progress { width: 100%; accent-color: var(--accent); }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--line); vertical-align: middle; }
td.actions { text-align: right; white-space: nowrap; }
.qr-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.qr img { display: block; width: 100%; max-width: 260px; margin: 0 auto 12px; background: #fff; border-radius: 8px; }
.creds { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; margin: 0; }
.creds dt { color: var(--muted); }
.creds dd { margin: 0; }
@media (max-width: 600px) {
  table thead { display: none; }
  table tr { display: grid; grid-template-columns: 1fr; padding: 8px 0; border-bottom: 1px solid var(--line); }
  td { border: 0; padding: 2px 0; }
  td.actions { text-align: left; }
  .quota { text-align: left; }
}