:root {
  --bg: #0f1115;
  --panel: #171a21;
  --border: #2a3140;
  --text: #e8ecf4;
  --muted: #8b95a8;
  --accent: #5b9cff;
  --danger: #ff6b6b;
  --ok: #4ade80;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.45;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
}

h1 {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 600;
}

.panel {
  max-width: 420px;
  margin: 3rem auto;
  padding: 1.5rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.hint {
  color: var(--muted);
  font-size: 0.85rem;
}

.login-btn {
  width: 100%;
  padding: 0.65rem 1rem;
  font-size: 1rem;
  background: #2aabee;
  color: #fff;
}

.login-error {
  color: var(--danger);
  font-size: 0.9rem;
  margin-top: 0.75rem;
}

.hidden {
  display: none !important;
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.75rem;
  padding: 1rem 1.25rem;
}

.stat-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem 1rem;
}

.stat-card strong {
  display: block;
  font-size: 1.35rem;
}

.stat-card span {
  color: var(--muted);
  font-size: 0.8rem;
}

.toolbar {
  display: flex;
  gap: 0.5rem;
  padding: 0 1.25rem 0.75rem;
  flex-wrap: wrap;
}

input[type="search"],
input[type="number"],
select {
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 0.45rem 0.6rem;
}

input[type="search"] {
  flex: 1;
  min-width: 180px;
}

button {
  background: var(--accent);
  color: #061018;
  border: none;
  border-radius: 6px;
  padding: 0.45rem 0.85rem;
  font-weight: 600;
  cursor: pointer;
}

button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

button.danger {
  background: var(--danger);
  color: #1a0505;
}

.table-wrap {
  margin: 0 1.25rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: auto;
}

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

th,
td {
  padding: 0.55rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

th {
  color: var(--muted);
  font-weight: 500;
  background: var(--panel);
}

tr:hover td {
  background: #1c212b;
}

.tier {
  display: inline-block;
  padding: 0.1rem 0.45rem;
  border-radius: 4px;
  font-size: 0.75rem;
  text-transform: uppercase;
  background: #252b38;
}

.tier-free { color: var(--muted); }
.tier-pro { color: #7dd3fc; }
.tier-premium { color: #fbbf24; }
.tier-business { color: var(--ok); }

.pager {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem 2rem;
}

#page-info {
  color: var(--muted);
  font-size: 0.85rem;
}

#user-dialog,
#add-user-dialog {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--panel);
  color: var(--text);
  width: min(520px, 92vw);
  padding: 0;
}

#user-dialog::backdrop,
#add-user-dialog::backdrop {
  background: rgba(0, 0, 0, 0.55);
}

.add-user-form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 0 1rem 1rem;
}

.add-user-form label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.add-user-form input {
  padding: 0.45rem 0.55rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
}

#user-dialog header {
  padding: 1rem 1rem 0.5rem;
  border: none;
}

#user-dialog header h2 {
  margin: 0;
  font-size: 1rem;
}

#close-dialog {
  background: transparent;
  color: var(--muted);
  font-size: 1.25rem;
  padding: 0.2rem 0.5rem;
}

#user-detail {
  padding: 0 1rem;
  font-size: 0.9rem;
}

#user-detail dl {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 0.35rem 0.75rem;
  margin: 0 0 1rem;
}

#user-detail dt {
  color: var(--muted);
}

.dialog-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 1rem;
  border-top: 1px solid var(--border);
}

#auth-bar {
  color: var(--muted);
  font-size: 0.85rem;
}

code {
  font-size: 0.85em;
  background: #252b38;
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
}