:root {
  --bg: #0E1116;
  --surface: #171B22;
  --surface-2: #1F242C;
  --border: #2A303A;
  --text: #F1F3F6;
  --text-muted: #8A93A3;
  --accent: #4C8DFF;
  --accent-dim: rgba(76, 141, 255, 0.15);
  --success: #34D399;
  --success-dim: rgba(52, 211, 153, 0.15);
  --danger: #F87171;
  --danger-dim: rgba(248, 113, 113, 0.15);
  --radius: 12px;
  --mono: ui-monospace, "SF Mono", "Cascadia Code", Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  min-height: 100vh;
}

.auth-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background:
    radial-gradient(circle at 20% 10%, rgba(76, 141, 255, 0.08), transparent 40%),
    radial-gradient(circle at 80% 90%, rgba(52, 211, 153, 0.06), transparent 40%),
    var(--bg);
}

.auth-card {
  width: 100%;
  max-width: 380px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 32px;
  text-align: center;
}

.brand-mark {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  border-radius: 14px;
  background: var(--accent-dim);
  border: 1px solid var(--accent);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 18px;
}

.brand-mark.small {
  width: 32px;
  height: 32px;
  font-size: 12px;
  margin: 0;
  border-radius: 8px;
}

.auth-card h1 {
  font-size: 22px;
  margin: 0 0 4px;
}

.auth-card .sub {
  color: var(--text-muted);
  font-size: 13px;
  margin: 0 0 28px;
}

.field {
  display: block;
  text-align: left;
  margin-bottom: 16px;
}

.field span {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.field input, .field select {
  width: 100%;
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font-size: 14px;
  font-family: var(--sans);
}

.field input:focus, .field select:focus {
  outline: none;
  border-color: var(--accent);
}

button[type="submit"], .ghost-btn {
  width: 100%;
  padding: 12px;
  border-radius: 8px;
  border: none;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}

button[type="submit"] {
  background: var(--accent);
  color: #fff;
}

button[type="submit"]:disabled {
  opacity: 0.6;
  cursor: default;
}

.ghost-btn {
  width: auto;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 8px 14px;
}

.ghost-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.error-message {
  background: var(--danger-dim);
  color: var(--danger);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 13px;
  margin-bottom: 16px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 28px;
  border-bottom: 1px solid var(--border);
}

.topbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
}

.admin-main {
  max-width: 900px;
  margin: 0 auto;
  padding: 32px 24px 60px;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 24px;
}

.panel h2 {
  margin: 0 0 20px;
  font-size: 16px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.inline-form {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  align-items: end;
}

.inline-form button { height: 44px; }

.feedback {
  margin-top: 16px;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 13px;
}

.feedback-success { background: var(--success-dim); color: var(--success); }
.feedback-error { background: var(--danger-dim); color: var(--danger); }

.user-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.user-table th {
  text-align: left;
  color: var(--text-muted);
  font-weight: 500;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
}

.user-table td {
  padding: 12px;
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
}

.status-pill {
  font-family: var(--sans);
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 20px;
  font-weight: 600;
}

.status-active { background: var(--success-dim); color: var(--success); }
.status-inactive { background: var(--danger-dim); color: var(--danger); }

.muted { color: var(--text-muted); font-family: var(--sans); }

@media (max-width: 600px) {
  .inline-form { grid-template-columns: 1fr; }
}
.install-card {
  max-width: 420px;
}

.qr-frame {
  background: #ffffff;
  border-radius: 12px;
  padding: 20px;
  display: inline-flex;
  margin: 8px 0 24px;
}

.download-btn {
  display: block;
  width: 100%;
  padding: 12px;
  border-radius: 8px;
  background: var(--accent-dim);
  border: 1px solid var(--accent);
  color: var(--accent);
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  text-align: center;
  box-sizing: border-box;
}

.download-btn:hover {
  background: var(--accent);
  color: #fff;
}

.install-note {
  margin-top: 16px;
  font-size: 12px;
}
.topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.ghost-btn {
  text-decoration: none;
  display: inline-block;
}
.pc-download-section {
  margin-top: 24px;
}

.section-divider {
  text-align: center;
  color: var(--text-muted);
  font-size: 12px;
  margin: 20px 0 16px;
  position: relative;
}

.section-divider::before,
.section-divider::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 35%;
  height: 1px;
  background: var(--border);
}

.section-divider::before { left: 0; }
.section-divider::after { right: 0; }

.pc-btn {
  background: var(--surface-2);
  border-color: var(--border);
  color: var(--text);
}

.pc-btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}
.search-input {
  width: 100%;
  padding: 10px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font-size: 14px;
  margin-bottom: 16px;
  box-sizing: border-box;
}

.search-input:focus {
  outline: none;
  border-color: var(--accent);
}

.platform-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.tab-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border-bottom: 2px solid transparent;
}

.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.tab-btn:hover:not(.active) {
  color: var(--text);
}

.report-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  gap: 12px;
}

.report-row:last-child { border-bottom: none; }
.report-info { flex: 1; }
.small { font-size: 11px; }