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

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: #0d1117;
  color: #c9d1d9;
  min-height: 100vh;
}

/* Login page */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-container {
  background: #161b22;
  border: 1px solid #30363d;
  border-radius: 8px;
  padding: 40px;
  width: 100%;
  max-width: 380px;
}

.login-container h1 {
  text-align: center;
  margin-bottom: 24px;
  color: #e6edf3;
  font-size: 1.4rem;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.875rem;
  color: #8b949e;
}

.form-group input {
  width: 100%;
  padding: 10px 12px;
  background: #0d1117;
  border: 1px solid #30363d;
  border-radius: 6px;
  color: #c9d1d9;
  font-size: 0.95rem;
  outline: none;
}

.form-group input:focus {
  border-color: #58a6ff;
}

.login-form button {
  width: 100%;
  padding: 10px;
  background: #238636;
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 0.95rem;
  cursor: pointer;
  margin-top: 8px;
}

.login-form button:hover {
  background: #2ea043;
}

.error {
  color: #f85149;
  text-align: center;
  margin-top: 12px;
  font-size: 0.875rem;
}

/* Dashboard page */
.dashboard-page {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  background: #161b22;
  border-bottom: 1px solid #30363d;
}

header h1 {
  font-size: 1rem;
  color: #e6edf3;
}

.logout-btn {
  color: #8b949e;
  text-decoration: none;
  font-size: 0.85rem;
  padding: 4px 12px;
  border: 1px solid #30363d;
  border-radius: 6px;
}

.logout-btn:hover {
  color: #f85149;
  border-color: #f85149;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 0;
  flex: 1;
  overflow: hidden;
}

.panel {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.panel-header {
  padding: 8px 12px;
  background: #161b22;
  border-bottom: 1px solid #30363d;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #8b949e;
}

.terminal-panel {
  border-right: 1px solid #30363d;
}

#terminal {
  flex: 1;
  padding: 4px;
  background: #0d1117;
}

.info-panel {
  overflow-y: auto;
}

#sysinfo {
  padding: 12px;
}

.info-item {
  margin-bottom: 14px;
}

.info-label {
  display: block;
  font-size: 0.75rem;
  color: #8b949e;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 4px;
}

.info-value {
  font-size: 0.9rem;
  color: #e6edf3;
  word-break: break-all;
}

.progress-bar {
  width: 100%;
  height: 8px;
  background: #21262d;
  border-radius: 4px;
  overflow: hidden;
  margin: 4px 0;
}

.progress-fill {
  height: 100%;
  background: #58a6ff;
  border-radius: 4px;
  transition: width 0.5s ease;
  width: 0%;
}

.progress-fill.warning {
  background: #d29922;
}

.progress-fill.danger {
  background: #f85149;
}

.info-percent {
  font-size: 0.85rem;
  color: #e6edf3;
}

.disk-item {
  margin-bottom: 10px;
}

.disk-label {
  font-size: 0.8rem;
  color: #c9d1d9;
  margin-bottom: 2px;
}

/* Header nav */
.header-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-btn {
  color: #8b949e;
  text-decoration: none;
  font-size: 0.85rem;
  padding: 4px 12px;
  border: 1px solid #30363d;
  border-radius: 6px;
}

.nav-btn:hover {
  color: #58a6ff;
  border-color: #58a6ff;
}

/* Admin page */
.admin-page {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.admin-container {
  flex: 1;
  padding: 20px;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.admin-section {
  background: #161b22;
  border: 1px solid #30363d;
  border-radius: 8px;
  margin-bottom: 20px;
  overflow: hidden;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid #30363d;
  flex-wrap: wrap;
  gap: 8px;
}

.section-header h2 {
  font-size: 1rem;
  color: #e6edf3;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.admin-table th {
  text-align: left;
  padding: 8px 12px;
  background: #0d1117;
  color: #8b949e;
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.03em;
}

.admin-table td {
  padding: 8px 12px;
  border-top: 1px solid #21262d;
  color: #c9d1d9;
}

.admin-table tr:hover td {
  background: #1c2128;
}

.inactive-row td {
  opacity: 0.5;
}

.actions {
  display: flex;
  gap: 4px;
}

.nowrap {
  white-space: nowrap;
}

.detail-cell {
  max-width: 300px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: 'JetBrains Mono', 'Cascadia Code', monospace;
  font-size: 0.8rem;
}

/* Buttons */
.btn {
  padding: 6px 12px;
  border: 1px solid #30363d;
  border-radius: 6px;
  background: #21262d;
  color: #c9d1d9;
  cursor: pointer;
  font-size: 0.85rem;
  text-decoration: none;
}

.btn:hover {
  background: #30363d;
}

.btn-primary {
  background: #238636;
  border-color: #238636;
  color: #fff;
}

.btn-primary:hover {
  background: #2ea043;
}

.btn-danger {
  background: transparent;
  border-color: #f85149;
  color: #f85149;
}

.btn-danger:hover {
  background: #f8514922;
}

.btn-small {
  padding: 4px 8px;
  font-size: 0.8rem;
}

.btn-active {
  background: #58a6ff;
  border-color: #58a6ff;
  color: #0d1117;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-admin {
  background: #58a6ff22;
  color: #58a6ff;
}

.badge-user {
  background: #8b949e22;
  color: #8b949e;
}

.badge-danger {
  background: #f8514922;
  color: #f85149;
}

.badge-event-login { background: #2ea04322; color: #2ea043; }
.badge-event-logout { background: #8b949e22; color: #8b949e; }
.badge-event-login_failed { background: #f8514922; color: #f85149; }
.badge-event-terminal_open { background: #58a6ff22; color: #58a6ff; }
.badge-event-terminal_close { background: #8b949e22; color: #8b949e; }
.badge-event-command { background: #d2992222; color: #d29922; }
.badge-event-user_created { background: #2ea04322; color: #2ea043; }
.badge-event-user_updated { background: #58a6ff22; color: #58a6ff; }
.badge-event-user_deleted { background: #f8514922; color: #f85149; }

/* Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.modal-content {
  background: #161b22;
  border: 1px solid #30363d;
  border-radius: 8px;
  padding: 24px;
  width: 100%;
  max-width: 420px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.modal-header h3 {
  color: #e6edf3;
  font-size: 1.1rem;
}

.modal-close {
  background: none;
  border: none;
  color: #8b949e;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0;
  line-height: 1;
}

.modal-close:hover {
  color: #f85149;
}

.modal .form-group select {
  width: 100%;
  padding: 10px 12px;
  background: #0d1117;
  border: 1px solid #30363d;
  border-radius: 6px;
  color: #c9d1d9;
  font-size: 0.95rem;
  outline: none;
}

.modal .form-group select:focus {
  border-color: #58a6ff;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 0.9rem;
}

.checkbox-label input[type="checkbox"] {
  width: auto;
}

/* Audit filters */
.audit-filters {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.filter-input {
  padding: 6px 10px;
  background: #0d1117;
  border: 1px solid #30363d;
  border-radius: 6px;
  color: #c9d1d9;
  font-size: 0.85rem;
  outline: none;
}

.filter-input:focus {
  border-color: #58a6ff;
}

/* Pagination */
.pagination {
  display: flex;
  gap: 4px;
  padding: 12px 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Responsive */
@media (max-width: 768px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr auto;
  }

  .terminal-panel {
    border-right: none;
    border-bottom: 1px solid #30363d;
    min-height: 50vh;
  }

  .info-panel {
    max-height: 40vh;
  }
}