:root {
  --bg: #f3f5f8;
  --surface: #ffffff;
  --surface-2: #e8edf3;
  --ink: #16273f;
  --ink-soft: #4c5f78;
  --ink-faint: #8695a8;
  --border: #d7dfe9;
  --navy: #1b3a63;
  --navy-mid: #2f5c9e;
  --accent: #a93226;
  --success: #2c7a4b;
  --success-soft: #e0efe4;
  --warning: #a86b0c;
  --warning-soft: #f6ead0;
  --radius: 6px;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.5;
}

.shell { max-width: 640px; margin: 0 auto; padding: 32px 20px 80px; }
.shell.wide { max-width: 1100px; }

/* ADR 0009 — logo slot for organization branding. Hidden by default;
   shown by JS only when a branding.logoUrl is actually present. */
.org-logo { display: none; max-height: 44px; max-width: 100%; margin: 0 0 12px; }

h1 { font-size: 22px; margin: 0 0 4px; }
h2 { font-size: 15px; text-transform: uppercase; letter-spacing: 0.04em; margin: 0 0 4px; }
p.hint { font-size: 12.5px; color: var(--ink-faint); margin: 0 0 14px; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-bottom: 16px;
  box-shadow: 0 1px 2px rgba(22,39,63,0.06);
}

.field { display: flex; flex-direction: column; gap: 5px; margin-bottom: 12px; }
.field label { font-size: 12px; font-weight: 600; color: var(--ink-soft); }
.field input, .field select, .field textarea {
  padding: 9px 11px; border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--bg); color: var(--ink); font-size: 13.5px; font-family: inherit;
}
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.card-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.card-row .card { margin-bottom: 0; }
@media (max-width: 720px) { .card-row { grid-template-columns: 1fr; } }

/* ADR 0028 — admin.html's left nav. */
.admin-shell { display: flex; gap: 24px; align-items: flex-start; }
.admin-nav { display: flex; flex-direction: column; gap: 2px; width: 168px; flex-shrink: 0; position: sticky; top: 24px; }
.admin-nav .nav-link {
  text-align: left; padding: 9px 12px; border: 1px solid transparent; background: none; border-radius: var(--radius);
  font-size: 13px; font-weight: 600; color: var(--ink-soft); cursor: pointer; font-family: inherit;
}
.admin-nav .nav-link:hover { background: var(--surface-2); }
.admin-nav .nav-link.active { background: var(--surface); color: var(--ink); border-color: var(--border); box-shadow: 0 1px 2px rgba(22,39,63,0.06); }
.admin-nav .nav-divider { border: none; border-top: 1px solid var(--border); margin: 8px 4px; }
.admin-main { flex: 1; min-width: 0; }
@media (max-width: 820px) {
  .admin-shell { flex-direction: column; }
  .admin-nav { flex-direction: row; flex-wrap: wrap; width: 100%; position: static; }
}

.readonly-field {
  padding: 9px 11px; border: 1px dashed var(--border); border-radius: var(--radius);
  background: var(--surface-2); color: var(--ink-soft); font-size: 13.5px;
}

.btn {
  font-size: 13px; font-weight: 600; border-radius: var(--radius);
  padding: 8px 16px; border: 1px solid var(--navy); background: var(--navy);
  color: #fff; cursor: pointer;
}
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--border); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { text-align: left; font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em;
     color: var(--ink-faint); padding: 8px 10px; border-bottom: 1px solid var(--border); }
td { padding: 8px 10px; border-bottom: 1px solid var(--border); }

.badge {
  display: inline-block; font-size: 10.5px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.04em; border-radius: 20px; padding: 2px 9px; background: var(--surface-2);
  color: var(--ink-soft);
}
.badge.vip { background: var(--warning-soft); color: var(--warning); }

.notice { font-size: 12.5px; padding: 9px 11px; border-radius: var(--radius); margin-bottom: 14px; }
.notice.warn { background: var(--warning-soft); color: var(--warning); }
.notice.error { background: #f8ddd9; color: var(--accent); }
.notice.success { background: var(--success-soft); color: var(--success); }