:root {
  --bg: #ffffff;
  --bg-soft: #f3f4f6;
  --card: #ffffff;
  --border: #e5e7eb;
  --text: #1f2937;
  --muted: #6b7280;
  --accent: #4b5563;
  --accent-hover: #374151;
  --danger: #dc2626;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background: radial-gradient(1200px 600px at 80% -10%, #f3f4f6 0%, var(--bg) 55%);
  color: var(--text);
  min-height: 100vh;
}

.topbar {
  padding: 24px 32px;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.user-box {
  display: flex;
  align-items: center;
  gap: 14px;
}

.user-email {
  color: var(--muted);
  font-size: 13px;
}

.logout-link {
  color: var(--text);
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid var(--border);
  background: var(--bg-soft);
  padding: 8px 14px;
  border-radius: 8px;
}

.logout-link:hover {
  background: #e5e7eb;
}

.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.login-card {
  width: 100%;
  max-width: 360px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.login-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
}

.login-brand h1 {
  margin: 8px 0 0;
  font-size: 20px;
}

.login-error {
  margin: 0;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid var(--danger);
  padding: 10px 12px;
  border-radius: 8px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
}

.field input {
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  outline: none;
}

.field input:focus {
  border-color: var(--accent);
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: #ffffff;
  border: 1px solid var(--border);
  padding: 6px;
  font-weight: 800;
  letter-spacing: 1px;
  color: #374151;
  overflow: hidden;
}

/* When an image logo is supplied it fills the box. */
.logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.login-brand .logo {
  width: 72px;
  height: 72px;
  border-radius: 16px;
  padding: 10px;
}

h1 {
  margin: 0;
  font-size: 20px;
}

.subtitle {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
}

.card h2 {
  margin: 0 0 16px;
  font-size: 16px;
}

.generator form {
  display: flex;
  gap: 12px;
}

#link-input {
  flex: 1;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  outline: none;
}

#link-input:focus {
  border-color: var(--accent);
}

button {
  cursor: pointer;
  border: none;
  border-radius: 10px;
  padding: 12px 20px;
  font-size: 14px;
  font-weight: 600;
  color: white;
  background: var(--accent);
  transition: background 0.15s ease;
}

button:hover {
  background: var(--accent-hover);
}

.error {
  margin: 12px 0 0;
  color: var(--danger);
  font-size: 13px;
}

.list-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.list-header h2 {
  margin: 0;
}

.badge {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 999px;
  padding: 2px 10px;
  font-size: 12px;
}

.empty {
  color: var(--muted);
  font-size: 14px;
  padding: 24px 0;
  text-align: center;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}

.qr-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.qr-img {
  background: white;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px;
  width: 160px;
  height: 160px;
  align-self: center;
}

.qr-name {
  font-weight: 700;
  font-size: 14px;
  word-break: break-word;
}

.qr-name .untitled {
  font-weight: 500;
  font-style: italic;
  color: var(--muted);
}

.qr-link {
  color: #2563eb;
  font-size: 13px;
  word-break: break-all;
  text-decoration: none;
}

.qr-link:hover {
  text-decoration: underline;
}

.qr-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--muted);
}

.scans {
  font-weight: 700;
  color: var(--text);
}

.qr-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.btn-secondary {
  flex: 1;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px;
  font-size: 12px;
}

.btn-secondary:hover {
  background: #e5e7eb;
}

.btn-danger {
  background: transparent;
  border: 1px solid var(--danger);
  color: var(--danger);
  padding: 8px;
  font-size: 12px;
}

.btn-danger:hover {
  background: rgba(239, 68, 68, 0.12);
}

/* ---- Admin: manage users ---- */
.banner {
  margin: 0;
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 14px;
}

.banner-ok {
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
  color: #065f46;
}

.banner-error {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #991b1b;
}

.add-user-form {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.add-user-form input[type="email"],
.add-user-form input[type="password"] {
  flex: 1;
  min-width: 200px;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  outline: none;
}

.add-user-form input:focus {
  border-color: var(--accent);
}

.role-select {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--muted);
  white-space: nowrap;
}

.users-table {
  display: flex;
  flex-direction: column;
}

.user-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

.user-row:last-child {
  border-bottom: none;
}

.user-main {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-name {
  font-size: 14px;
  font-weight: 600;
}

.user-name .you {
  color: var(--muted);
  font-weight: 400;
}

.role-badge {
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.role-admin {
  background: #eef2ff;
  border: 1px solid #c7d2fe;
  color: #3730a3;
}

.role-user {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  color: var(--muted);
}

.user-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.inline-form {
  display: flex;
  align-items: center;
  gap: 6px;
}

.inline-form input[type="password"] {
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 12px;
  outline: none;
  width: 140px;
}

.inline-form .btn-secondary,
.inline-form .btn-danger {
  flex: none;
}

.self-note {
  font-size: 12px;
  color: var(--muted);
}

/* ---- Scan log ---- */
.log-toolbar {
  margin-left: auto;
  display: flex;
  gap: 8px;
}

.privacy-note {
  margin: 0 0 16px;
  padding: 10px 12px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.log-scroll {
  overflow-x: auto;
}

.log-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.log-table th,
.log-table td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.log-table th {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--muted);
}

.log-table tbody tr:hover {
  background: var(--bg-soft);
}

.log-table code,
.mono {
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
  font-size: 12px;
}

/* Anchor styled like a secondary button (per-QR "Log" link). */
.qr-actions a.btn-secondary {
  border-radius: 10px;
  font-weight: 600;
  text-decoration: none;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
}