:root {
  --bg-primary: #0f172a;
  --bg-card: #1e293b;
  --bg-input: #334155;
  --bg-subtle: #0f172a;
  --accent-blue: #3b82f6;
  --accent-blue-hover: #2563eb;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --success: #22c55e;
  --danger: #ef4444;
  --warning: #f59e0b;
  --border-color: #334155;
  --radius: 12px;
  --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Navbar */
.navbar {
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  padding: 16px 24px;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  font-size: 28px;
}

.brand-title {
  display: block;
  font-weight: 700;
  font-size: 18px;
  color: var(--text-main);
}

.brand-sub {
  font-size: 12px;
  color: var(--accent-blue);
  font-weight: 500;
}

.nav-tabs {
  display: flex;
  gap: 8px;
}

.nav-tab {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-muted);
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.nav-tab:hover {
  color: var(--text-main);
  background-color: rgba(255, 255, 255, 0.05);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-badge {
  background-color: var(--bg-input);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 13px;
  color: var(--text-muted);
}

/* Main Content */
.main-content {
  max-width: 1200px;
  width: 100%;
  margin: 40px auto;
  padding: 0 24px;
  flex: 1;
}

/* Cards & Components */
.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
}

.auth-card {
  max-width: 440px;
  margin: 40px auto;
}

.auth-header {
  text-align: center;
  margin-bottom: 24px;
}

.auth-header h2 {
  font-size: 22px;
  margin-bottom: 8px;
}

.auth-header p {
  color: var(--text-muted);
  font-size: 14px;
}

/* Form Controls */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--text-muted);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-main);
  font-size: 14px;
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent-blue);
}

.form-section-title {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--accent-blue);
  margin: 20px 0 12px 0;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 6px;
}

.checkbox-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-main);
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent-blue);
  cursor: pointer;
}

/* Buttons */
.btn {
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 14px;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-primary {
  background-color: var(--accent-blue);
  color: #ffffff;
}

.btn-primary:hover {
  background-color: var(--accent-blue-hover);
}

.btn-secondary {
  background-color: var(--bg-input);
  color: var(--text-main);
}

.btn-secondary:hover {
  background-color: #475569;
}

.btn-danger {
  background-color: var(--danger);
  color: #ffffff;
}

.btn-danger:hover {
  background-color: #dc2626;
}

.btn-block {
  width: 100%;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
}

/* Dashboard Grid & Layout */
.status-overview {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 30px;
}

.overview-info h3 {
  font-size: 20px;
  margin-bottom: 6px;
}

.overview-info p {
  color: var(--text-muted);
  font-size: 14px;
}

.overview-stats {
  display: flex;
  gap: 24px;
}

.stat-box {
  background-color: var(--bg-primary);
  padding: 12px 24px;
  border-radius: 10px;
  text-align: center;
}

.stat-num {
  font-size: 24px;
  font-weight: 700;
  display: block;
}

.stat-label {
  font-size: 12px;
  color: var(--text-muted);
}

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

.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.server-cards-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 20px;
}

.server-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.server-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 14px;
}

.server-name {
  font-size: 18px;
  font-weight: 700;
}

.status-badge {
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
}

.status-running {
  background-color: rgba(34, 197, 94, 0.2);
  color: var(--success);
}

.status-stopped {
  background-color: rgba(239, 68, 68, 0.2);
  color: var(--danger);
}

.server-details {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 15px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.detail-item strong {
  color: var(--text-main);
}

/* Quota Progress Bar */
.quota-progress {
  width: 100%;
  height: 6px;
  background-color: var(--bg-primary);
  border-radius: 3px;
  overflow: hidden;
  margin-top: 4px;
}

.quota-bar {
  height: 100%;
  background-color: var(--accent-blue);
  border-radius: 3px;
  transition: width 0.3s ease;
}

.quota-bar.warning {
  background-color: var(--warning);
}

.quota-bar.danger {
  background-color: var(--danger);
}

.server-card-subactions {
  display: flex;
  gap: 6px;
  margin-bottom: 15px;
  flex-wrap: wrap;
}

.server-actions {
  display: flex;
  gap: 8px;
}

.toolbar-buttons {
  display: flex;
  gap: 12px;
  align-items: center;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* Data Table */
.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.data-table th {
  background-color: var(--bg-primary);
  color: var(--text-muted);
  font-size: 12px;
  text-transform: uppercase;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-color);
}

.data-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-color);
  font-size: 14px;
  color: var(--text-main);
}

.data-table tr:hover td {
  background-color: rgba(255, 255, 255, 0.02);
}

.badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
}

.badge-info {
  background-color: rgba(59, 130, 246, 0.2);
  color: var(--accent-blue);
}

.badge-warning {
  background-color: rgba(245, 158, 11, 0.2);
  color: var(--warning);
}

.badge-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.badge-list-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-input);
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 13px;
}

.log-box {
  background-color: #1e1e24;
  color: #a6accd;
  padding: 16px;
  border-radius: 8px;
  font-family: monospace;
  font-size: 12px;
  line-height: 1.5;
  max-height: 300px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-all;
  border: 1px solid var(--border-color);
}

/* Modal Overlay & Dialog */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(4px);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.modal-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 28px;
  width: 100%;
  max-width: 520px;
  box-shadow: var(--shadow);
  max-height: 90vh;
  overflow-y: auto;
}

.modal-lg {
  max-width: 840px;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.modal-header h3 {
  font-size: 18px;
}

.btn-icon {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 24px;
  cursor: pointer;
  line-height: 1;
}

.btn-icon:hover {
  color: var(--text-main);
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 24px;
}

/* Footer */
.footer {
  text-align: center;
  padding: 24px;
  color: var(--text-muted);
  font-size: 13px;
  border-top: 1px solid var(--border-color);
  margin-top: auto;
}

.footer a {
  color: var(--accent-blue);
  text-decoration: none;
}

/* Auth Card Tabs Header */
.auth-tabs-header {
  display: flex;
  background-color: var(--bg-primary);
  border-radius: var(--radius) var(--radius) 0 0;
  margin: -28px -28px 24px -28px;
  border-bottom: 1px solid var(--border-color);
  overflow: hidden;
}

.auth-tab {
  flex: 1;
  padding: 14px 16px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  border-bottom: 2px solid transparent;
}

.auth-tab:hover {
  color: var(--text-main);
  background-color: rgba(255, 255, 255, 0.03);
}

.auth-tab.active {
  color: var(--accent-blue);
  border-bottom-color: var(--accent-blue);
  background-color: var(--bg-card);
}