:root {
  color-scheme: light;
  --bg: #f4f6fb;
  --surface: #ffffff;
  --text: #1e293b;
  --muted: #64748b;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --border: #e2e8f0;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  --danger: #dc2626;
  --success: #059669;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, Segoe UI, Arial, sans-serif;
  background: linear-gradient(180deg, #eef2ff 0%, var(--bg) 40%);
  color: var(--text);
  min-height: 100vh;
}

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 1.5rem 1rem 3rem;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.brand h1 {
  margin: 0;
  font-size: 1.75rem;
  font-weight: 700;
}

.brand p {
  margin: 0.25rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.userbar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.user-chip {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.45rem 0.9rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.user-chip strong {
  color: var(--text);
}

.tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.tab {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 999px;
  padding: 0.55rem 1rem;
  cursor: pointer;
  font-weight: 600;
}

.tab.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.25rem;
  box-shadow: var(--shadow);
}

.card + .card {
  margin-top: 1rem;
}

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

label {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: 0.92rem;
  font-weight: 600;
}

select,
input,
textarea {
  font: inherit;
  font-weight: 400;
}

select,
input,
textarea {
  padding: 0.7rem 0.8rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
}

select:focus,
input:focus,
textarea:focus {
  outline: 2px solid rgba(37, 99, 235, 0.18);
  border-color: var(--accent);
}

.actions {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

button {
  border: 0;
  border-radius: 10px;
  padding: 0.75rem 1.1rem;
  cursor: pointer;
  font-weight: 600;
}

button.primary {
  background: var(--accent);
  color: #fff;
}

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

button.secondary {
  background: #eef2ff;
  color: var(--accent);
}

button.ghost {
  background: #fff;
  border: 1px solid var(--border);
  color: var(--text);
}

button.danger {
  background: #fef2f2;
  color: var(--danger);
  border: 1px solid #fecaca;
}

.status {
  color: var(--muted);
  margin-bottom: 0.75rem;
}

.output {
  margin: 0;
  max-height: 520px;
  overflow: auto;
  padding: 1rem;
  border-radius: 12px;
  background: #f8fafc;
  border: 1px solid var(--border);
  white-space: pre-wrap;
  word-break: break-word;
  font-family: Consolas, Monaco, monospace;
  font-size: 0.88rem;
}

.hidden {
  display: none !important;
}

.error {
  color: var(--danger);
}

.success {
  color: var(--success);
}

.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1rem;
}

.login-card {
  width: min(420px, 100%);
}

.login-card h1 {
  margin: 0 0 0.35rem;
}

.login-card p {
  margin: 0 0 1.25rem;
  color: var(--muted);
}

.users-table {
  width: 100%;
  border-collapse: collapse;
}

.users-table th,
.users-table td {
  text-align: left;
  padding: 0.75rem 0.5rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.users-table th {
  font-size: 0.85rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge {
  display: inline-block;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
}

.badge.admin {
  background: #dbeafe;
  color: #1d4ed8;
}

.badge.user {
  background: #f1f5f9;
  color: #475569;
}

.badge.inactive {
  background: #fee2e2;
  color: #b91c1c;
}

.admin-form {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.75rem;
  margin-bottom: 1rem;
}

@media (max-width: 720px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }
}