/* Hand-written, no build step: served from /static only, so the CSP stays at style-src 'self'. */
:root {
  --ink: #111827;
  --muted: #4b5563;
  --line: #d1d5db;
  --surface: #ffffff;
  --page: #f3f4f6;
  --accent: #1d4ed8;
  --danger: #b91c1c;
  --danger-soft: #fee2e2;
  --ok-soft: #dbeafe;
}

* { box-sizing: border-box; }
body.plain { margin: 0; min-height: 100vh; display: flex; flex-direction: column; background: var(--page); color: var(--ink);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
.plain-top { padding: 1rem 1.5rem; background: var(--surface); border-bottom: 1px solid var(--line); }
.plain-brand { color: var(--ink); font-weight: 700; text-decoration: none; }
.page { flex: 1; width: 100%; max-width: 60rem; margin: 0 auto; padding: 2rem 1rem; }
.footer { padding: 1rem; text-align: center; color: var(--muted); font-size: .875rem; }

.card { background: var(--surface); border: 1px solid var(--line); border-radius: .5rem; padding: 1.5rem; }
.card.narrow { max-width: 26rem; margin: 0 auto; }
h1 { margin: 0 0 1rem; font-size: 1.5rem; }
h2 { margin: 0 0 .75rem; font-size: 1.125rem; }

.stack { display: flex; flex-direction: column; gap: .5rem; }
label { font-weight: 600; }
input, select { padding: .5rem .75rem; border: 1px solid var(--line); border-radius: .375rem; font: inherit; }
button, .button { display: inline-block; padding: .5rem 1rem; border: 1px solid var(--line); border-radius: .375rem;
  background: var(--surface); color: var(--ink); font: inherit; text-decoration: none; cursor: pointer; }
button.primary { margin-top: .5rem; background: var(--accent); border-color: var(--accent); color: #fff; }
button:focus-visible, .button:focus-visible, input:focus-visible, select:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.notice, .error { padding: .5rem .75rem; border-radius: .375rem; }
.notice { background: var(--ok-soft); }
.error { background: var(--danger-soft); color: var(--danger); }
.muted { color: var(--muted); font-size: .875rem; }
.qr { display: flex; justify-content: center; margin: 1rem 0; }
code { overflow-wrap: anywhere; }

.card + .card { margin-top: 1rem; }
.client-list { margin: 0 0 1rem; padding: 0; list-style: none; }
.client-list li { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .5rem;
  padding: .5rem 0; border-bottom: 1px solid var(--line); }
.client-logo { display: block; max-width: 12rem; max-height: 6rem; margin-bottom: 1rem; }