:root {
  --bg: #f7f7f9;
  --surface: #ffffff;
  --border: #e2e2e7;
  --text: #1c1c1f;
  --muted: #6b6b74;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --danger: #dc2626;
  --radius: 8px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.topbar h1 { font-size: 18px; margin: 0; }
.topbar-right { display: flex; align-items: center; gap: 12px; color: var(--muted); font-size: 14px; }

.container { max-width: 1100px; margin: 0 auto; padding: 24px; }
.toolbar { margin-bottom: 16px; }

.btn {
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 8px 14px;
  border-radius: var(--radius);
  font-size: 14px;
  cursor: pointer;
  text-decoration: none;
  color: var(--text);
  display: inline-block;
}
.btn:hover { border-color: #c7c7cf; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-ghost { background: transparent; border-color: transparent; }
.btn-danger { color: var(--danger); }
.btn-small { padding: 4px 10px; font-size: 12px; margin-right: 4px; }

.qr-table { width: 100%; border-collapse: collapse; background: var(--surface); border-radius: var(--radius); overflow: hidden; box-shadow: 0 1px 2px rgba(0,0,0,0.04); }
.qr-table th, .qr-table td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--border); font-size: 14px; vertical-align: middle; }
.qr-table th { font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); }
.qr-table .truncate { max-width: 280px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.qr-table .actions { white-space: nowrap; }

.thumb { width: 48px; height: 48px; }
.thumb-large { width: 180px; height: 180px; display: block; margin: 0 auto 16px; }

.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 11px; text-transform: uppercase; margin-right: 6px; }
.badge-dynamic { background: #dbeafe; color: #1d4ed8; }
.badge-static { background: #e5e7eb; color: #374151; }

.empty-state { text-align: center; color: var(--muted); padding: 40px 0; }

dialog { border: none; border-radius: 12px; padding: 24px; width: 420px; max-width: 90vw; box-shadow: 0 10px 40px rgba(0,0,0,0.15); }
dialog::backdrop { background: rgba(0,0,0,0.4); }
dialog h2 { margin-top: 0; }

label { display: block; margin-bottom: 14px; font-size: 14px; color: var(--muted); }
label input, label textarea { display: block; width: 100%; margin-top: 6px; padding: 8px 10px; border: 1px solid var(--border); border-radius: 6px; font-size: 14px; color: var(--text); font-family: inherit; }
label.inline { display: inline-flex; align-items: center; gap: 6px; margin-right: 16px; font-size: 14px; }
label.inline input { width: auto; margin: 0; }

fieldset { border: 1px solid var(--border); border-radius: 6px; margin-bottom: 14px; }
legend { font-size: 12px; color: var(--muted); padding: 0 6px; }

.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 8px; }

.error { color: var(--danger); font-size: 13px; }
.success { color: #15803d; font-size: 13px; }
.muted { color: var(--muted); font-size: 13px; }

.scan-list { max-height: 200px; overflow-y: auto; border-top: 1px solid var(--border); margin-top: 12px; padding-top: 8px; }
.scan-row { display: flex; gap: 12px; font-size: 12px; padding: 4px 0; border-bottom: 1px solid #f0f0f2; }
.scan-row span:first-child { flex: 0 0 140px; color: var(--muted); }

.login-page { display: flex; align-items: center; justify-content: center; height: 100vh; background: var(--bg); }
.login-card { background: var(--surface); padding: 32px; border-radius: 12px; width: 320px; box-shadow: 0 10px 40px rgba(0,0,0,0.08); }
.login-card h1 { margin: 0 0 4px; font-size: 20px; }
.login-card .subtitle { color: var(--muted); font-size: 13px; margin-bottom: 20px; }
.login-card button { width: 100%; margin-top: 8px; }

.divider { display: flex; align-items: center; gap: 10px; margin: 18px 0; color: var(--muted); font-size: 12px; }
.divider::before, .divider::after { content: ''; flex: 1; height: 1px; background: var(--border); }