*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0b1020;
  --card: #141b2d;
  --border: #2a3550;
  --text: #eef2ff;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --accent-dark: #0ea5e9;
  --success: #34d399;
  --danger: #f87171;
  --radius: 16px;
  --font: 'Instrument Sans', system-ui, sans-serif;
}

html { font-size: 16px; -webkit-font-smoothing: antialiased; }

body {
  min-height: 100vh;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(56, 189, 248, 0.18), transparent),
    radial-gradient(ellipse 50% 40% at 100% 100%, rgba(14, 165, 233, 0.1), transparent),
    var(--bg);
  display: grid;
  place-items: center;
  padding: 1.5rem;
}

.shell { width: 100%; max-width: 520px; }
.shell-wide { max-width: 920px; }

.view { display: none; }
.view.active { display: block; animation: fadeIn 0.25s ease; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.card {
  background: rgba(20, 27, 45, 0.92);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(10px);
}

.card-hero { text-align: center; padding: 2.5rem 2rem; }

.badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.25);
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}

h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 0.75rem;
}

h2 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.lead, .sub {
  color: var(--muted);
  line-height: 1.6;
}

.lead { margin-bottom: 1.25rem; }
.sub { margin-bottom: 1.5rem; font-size: 0.95rem; }

.demo-points {
  list-style: none;
  text-align: left;
  margin: 0 auto 1.75rem;
  max-width: 26rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(12, 18, 34, 0.45);
}

.demo-points li {
  position: relative;
  padding-left: 1.1rem;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.demo-points li + li { margin-top: 0.55rem; }

.demo-points li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
}

.hero-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
}

.home-admin-link {
  margin-top: 1.5rem;
  font-size: 0.85rem;
}

.home-admin-link a {
  color: var(--muted);
  text-decoration: none;
}

.home-admin-link a:hover {
  color: var(--accent);
  text-decoration: underline;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.8rem 1.25rem;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s;
}

.btn:disabled { opacity: 0.6; cursor: not-allowed; }

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #04111f;
  box-shadow: 0 8px 24px rgba(56, 189, 248, 0.25);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(56, 189, 248, 0.35);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-ghost:hover:not(:disabled) { background: rgba(255, 255, 255, 0.04); }

.back-link {
  background: none;
  border: none;
  color: var(--muted);
  font-family: inherit;
  font-size: 0.875rem;
  cursor: pointer;
  margin-bottom: 1rem;
  padding: 0;
}

.back-link:hover { color: var(--text); }

.stack {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

label {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted);
}

input {
  font-family: inherit;
  font-size: 1rem;
  color: var(--text);
  background: #0c1222;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.75rem 0.9rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15);
}

.mfa-panel {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.25rem;
  align-items: start;
  padding: 1rem;
  background: rgba(12, 18, 34, 0.7);
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 1.25rem;
}

#mfa-qr {
  border-radius: 10px;
  background: #fff;
  padding: 0.5rem;
}

.mfa-meta p { font-size: 0.9rem; color: var(--muted); margin-bottom: 0.5rem; }
.mfa-meta strong { color: var(--text); }

.manual-key-label {
  margin-top: 0.75rem !important;
  font-size: 0.8rem !important;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

#mfa-manual-key {
  display: block;
  word-break: break-all;
  font-size: 0.8rem;
  color: var(--accent);
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.2);
  border-radius: 8px;
  padding: 0.6rem 0.75rem;
}

.error {
  color: var(--danger);
  font-size: 0.875rem;
  line-height: 1.4;
}

.success {
  color: var(--success);
  font-size: 0.875rem;
  line-height: 1.4;
}

.hidden { display: none !important; }

.manager-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.manager-actions {
  display: flex;
  gap: 0.5rem;
  flex-shrink: 0;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 12px;
}

.user-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.user-table th,
.user-table td {
  padding: 0.85rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.user-table th {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  background: rgba(12, 18, 34, 0.5);
}

.user-table tr:last-child td { border-bottom: none; }

.table-empty {
  text-align: center;
  color: var(--muted);
}

.table-actions { text-align: right; white-space: nowrap; }

.btn-sm {
  padding: 0.45rem 0.8rem;
  font-size: 0.8rem;
}

.btn-danger {
  background: rgba(248, 113, 113, 0.12);
  color: var(--danger);
  border: 1px solid rgba(248, 113, 113, 0.35);
}

.btn-danger:hover:not(:disabled) {
  background: rgba(248, 113, 113, 0.2);
}

.status-badge {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.status-active {
  background: rgba(52, 211, 153, 0.15);
  color: var(--success);
}

.status-pending {
  background: rgba(251, 191, 36, 0.15);
  color: #fbbf24;
}

.edit-panel {
  margin-top: 1rem;
}

.edit-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.checkbox-row {
  flex-direction: row !important;
  align-items: center;
  gap: 0.6rem !important;
  color: var(--text) !important;
  font-weight: 400 !important;
}

.checkbox-row input {
  width: auto;
  margin: 0;
}

.mfa-reset-result {
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}

.mfa-reset-result h4 {
  margin-bottom: 0.35rem;
  font-size: 1rem;
}

.card-success { text-align: center; }

.success-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 1rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: #042f1e;
  background: var(--success);
}

@media (max-width: 560px) {
  .card { padding: 1.5rem; }
  .mfa-panel { grid-template-columns: 1fr; justify-items: center; text-align: center; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
}