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

:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: #16161f;
  --bg-hover: #1e1e2a;
  --text-primary: #ffffff;
  --text-secondary: #8b8b9e;
  --accent: #6366f1;
  --accent-glow: rgba(99, 102, 241, 0.3);
  --success: #10b981;
  --success-glow: rgba(16, 185, 129, 0.3);
  --warning: #f59e0b;
  --warning-glow: rgba(245, 158, 11, 0.3);
  --danger: #ef4444;
  --danger-glow: rgba(239, 68, 68, 0.3);
  --border: #2a2a3a;
  --gradient-1: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  --gradient-2: linear-gradient(135deg, #10b981 0%, #14b8a6 100%);
  --gradient-3: linear-gradient(135deg, #f59e0b 0%, #f97316 100%);
  --gradient-4: linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%);
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  background-image:
    radial-gradient(ellipse at top, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse at bottom right, rgba(139, 92, 246, 0.05) 0%, transparent 50%);
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 30px;
}

/* Header */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 40px;
  padding: 20px 30px;
  background: var(--bg-card);
  border-radius: 20px;
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
}

.logo {
  display: flex;
  align-items: center;
  gap: 15px;
}

.logo-icon {
  width: 50px;
  height: 50px;
  background: var(--gradient-1);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: 0 8px 30px var(--accent-glow);
}

.logo h1 {
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo span {
  display: block;
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 400;
}

.header-actions {
  display: flex;
  gap: 12px;
}

.btn-admin {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 12px 24px;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-admin:hover {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 8px 30px var(--accent-glow);
  transform: translateY(-2px);
}

/* Status Badge */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: 30px;
  color: var(--success);
  font-size: 0.85rem;
  font-weight: 500;
}

.status-badge .pulse {
  width: 8px;
  height: 8px;
  background: var(--success);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 var(--success-glow); }
  50% { opacity: 0.8; box-shadow: 0 0 0 10px transparent; }
}

/* Cards */
.card {
  background: var(--bg-card);
  border-radius: 20px;
  padding: 25px;
  margin-bottom: 25px;
  border: 1px solid var(--border);
  transition: all 0.3s ease;
}

.card:hover {
  border-color: rgba(99, 102, 241, 0.3);
}

.card-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--text-secondary);
}

.card-title .icon {
  width: 36px;
  height: 36px;
  background: var(--bg-secondary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

/* Resources Grid */
.resources-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.resource-card {
  background: var(--bg-secondary);
  border-radius: 16px;
  padding: 24px;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all 0.3s ease;
}

.resource-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.resource-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  border-radius: 3px 3px 0 0;
}

.resource-card.cpu::before { background: var(--gradient-1); }
.resource-card.memory::before { background: var(--gradient-2); }
.resource-card.disk::before { background: var(--gradient-3); }
.resource-card.network::before { background: var(--gradient-4); }

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

.resource-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
}

.resource-card.cpu .resource-icon { background: rgba(99, 102, 241, 0.15); }
.resource-card.memory .resource-icon { background: rgba(16, 185, 129, 0.15); }
.resource-card.disk .resource-icon { background: rgba(245, 158, 11, 0.15); }
.resource-card.network .resource-icon { background: rgba(59, 130, 246, 0.15); }

.resource-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 500;
}

.resource-value {
  font-size: 2.5rem;
  font-weight: 700;
  margin: 10px 0;
  background: linear-gradient(135deg, #fff 0%, #a5a5a5 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.resource-sub {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* Progress Ring */
.progress-ring {
  position: relative;
  width: 60px;
  height: 60px;
}

.progress-ring svg {
  transform: rotate(-90deg);
}

.progress-ring .bg {
  stroke: var(--bg-primary);
}

.progress-ring .progress {
  stroke: var(--accent);
  stroke-linecap: round;
  transition: stroke-dashoffset 0.5s ease;
}

.progress-ring .value {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 0.85rem;
  font-weight: 600;
}

/* Progress Bar */
.progress-bar {
  height: 8px;
  background: var(--bg-primary);
  border-radius: 10px;
  overflow: hidden;
  margin-top: 15px;
}

.progress-bar .fill {
  height: 100%;
  border-radius: 10px;
  transition: width 0.5s ease;
  position: relative;
}

.progress-bar .fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.progress-bar.cpu .fill { background: var(--gradient-1); }
.progress-bar.memory .fill { background: var(--gradient-2); }
.progress-bar.disk .fill { background: var(--gradient-3); }

/* Uptime Section */
.uptime-section {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 25px;
  align-items: start;
}

.uptime-display {
  background: var(--bg-secondary);
  border-radius: 16px;
  padding: 30px;
  text-align: center;
  border: 1px solid var(--border);
}

.uptime-circle {
  width: 150px;
  height: 150px;
  margin: 0 auto 20px;
  position: relative;
  background: conic-gradient(var(--success) var(--uptime-percent, 100%), var(--bg-primary) 0);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.uptime-circle::before {
  content: '';
  position: absolute;
  width: 120px;
  height: 120px;
  background: var(--bg-secondary);
  border-radius: 50%;
}

.uptime-circle .value {
  position: relative;
  z-index: 1;
  font-size: 2rem;
  font-weight: 700;
}

.uptime-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 5px;
}

.uptime-time {
  font-size: 1.3rem;
  font-weight: 600;
}

.uptime-since {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 5px;
}

.uptime-chart-container {
  background: var(--bg-secondary);
  border-radius: 16px;
  padding: 25px;
  border: 1px solid var(--border);
  min-height: 280px;
  max-height: 320px;
}

.chart-wrapper {
  position: relative;
  height: 200px;
  width: 100%;
}

.chart-wrapper-small {
  position: relative;
  height: 150px;
  width: 100%;
}

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

.chart-header h3 {
  font-size: 1rem;
  font-weight: 600;
}

.chart-tabs {
  display: flex;
  gap: 5px;
  background: var(--bg-primary);
  padding: 4px;
  border-radius: 10px;
}

.chart-tab {
  padding: 8px 16px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.85rem;
  transition: all 0.2s;
}

.chart-tab.active {
  background: var(--accent);
  color: white;
}

/* Services */
.services-grid {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.service-card {
  background: var(--bg-secondary);
  border-radius: 16px;
  border: 1px solid var(--border);
  overflow: hidden;
  transition: all 0.3s ease;
}

.service-card:hover {
  border-color: rgba(99, 102, 241, 0.3);
  transform: translateX(5px);
}

.service-header {
  display: flex;
  align-items: center;
  padding: 20px 25px;
  cursor: pointer;
  gap: 20px;
}

.service-status-indicator {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.service-status-indicator.up {
  background: rgba(16, 185, 129, 0.15);
  color: var(--success);
  box-shadow: 0 0 30px var(--success-glow);
}

.service-status-indicator.down {
  background: rgba(239, 68, 68, 0.15);
  color: var(--danger);
  box-shadow: 0 0 30px var(--danger-glow);
  animation: pulse-danger 2s infinite;
}

@keyframes pulse-danger {
  0%, 100% { box-shadow: 0 0 20px var(--danger-glow); }
  50% { box-shadow: 0 0 40px var(--danger-glow); }
}

.service-status-indicator.unknown {
  background: rgba(139, 139, 158, 0.15);
  color: var(--text-secondary);
}

.service-info {
  flex: 1;
}

.service-name {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.service-meta {
  display: flex;
  align-items: center;
  gap: 15px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.service-type {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  background: var(--bg-primary);
  border-radius: 6px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.service-uptime-info {
  width: 220px;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
}

.uptime-duration {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
  padding: 4px 10px;
  background: var(--bg-primary);
  border-radius: 8px;
}

.uptime-percent-large {
  font-size: 1.8rem;
  font-weight: 700;
}

.uptime-percent-large.good { color: var(--success); }
.uptime-percent-large.warning { color: var(--warning); }
.uptime-percent-large.bad { color: var(--danger); }

.uptime-bar-mini {
  width: 100%;
  height: 6px;
  background: var(--bg-primary);
  border-radius: 3px;
  overflow: hidden;
}

.uptime-bar-mini .fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.5s;
}

.uptime-bar-mini .fill.good { background: var(--success); }
.uptime-bar-mini .fill.warning { background: var(--warning); }
.uptime-bar-mini .fill.bad { background: var(--danger); }

.service-expand {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--bg-primary);
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.service-expand:hover {
  background: var(--accent);
  color: white;
}

.service-expand svg {
  transition: transform 0.3s;
}

.service-card.expanded .service-expand svg {
  transform: rotate(180deg);
}

.service-details {
  padding: 0 25px 25px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  border-top: 1px solid var(--border);
  margin-top: 0;
  padding-top: 20px;
}

.detail-panel {
  background: var(--bg-primary);
  border-radius: 12px;
  padding: 20px;
}

.detail-panel h4 {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 15px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.logs-content {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.8rem;
  color: var(--text-secondary);
  background: var(--bg-secondary);
  padding: 15px;
  border-radius: 8px;
  max-height: 200px;
  overflow-y: auto;
  white-space: pre-wrap;
  line-height: 1.8;
}

.logs-content::-webkit-scrollbar {
  width: 6px;
}

.logs-content::-webkit-scrollbar-track {
  background: var(--bg-primary);
  border-radius: 3px;
}

.logs-content::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

/* Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.modal.show {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: var(--bg-card);
  border-radius: 24px;
  width: 90%;
  max-width: 550px;
  max-height: 90vh;
  overflow-y: auto;
  border: 1px solid var(--border);
  transform: translateY(20px);
  transition: transform 0.3s ease;
}

.modal.show .modal-content {
  transform: translateY(0);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 25px 30px;
  border-bottom: 1px solid var(--border);
}

.modal-header h2 {
  font-size: 1.3rem;
  font-weight: 600;
}

.close-btn {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 1.2rem;
  cursor: pointer;
  transition: all 0.2s;
}

.close-btn:hover {
  background: var(--danger);
  border-color: var(--danger);
  color: white;
}

.modal-body {
  padding: 30px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
  font-weight: 500;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 14px 18px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text-primary);
  font-size: 1rem;
  transition: all 0.2s;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group input::placeholder {
  color: var(--text-secondary);
}

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

.checkbox-group input[type="checkbox"] {
  width: 22px;
  height: 22px;
  accent-color: var(--accent);
  cursor: pointer;
}

.btn-primary {
  width: 100%;
  padding: 16px;
  background: var(--gradient-1);
  border: none;
  border-radius: 12px;
  color: white;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
  margin-top: 10px;
}

.btn-primary:hover {
  box-shadow: 0 10px 40px var(--accent-glow);
  transform: translateY(-2px);
}

.btn-secondary {
  width: 100%;
  padding: 14px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  margin-top: 10px;
}

.btn-secondary:hover {
  background: var(--bg-hover);
}

.error {
  color: var(--danger);
  margin-top: 15px;
  text-align: center;
  padding: 12px;
  background: rgba(239, 68, 68, 0.1);
  border-radius: 10px;
  font-size: 0.9rem;
}

.success {
  color: var(--success);
  margin-top: 15px;
  text-align: center;
  padding: 12px;
  background: rgba(16, 185, 129, 0.1);
  border-radius: 10px;
  font-size: 0.9rem;
}

/* Admin Tabs */
.admin-tabs {
  display: flex;
  gap: 10px;
  margin-bottom: 25px;
  padding: 5px;
  background: var(--bg-secondary);
  border-radius: 14px;
}

.tab-btn {
  flex: 1;
  padding: 14px;
  background: transparent;
  border: none;
  border-radius: 10px;
  color: var(--text-secondary);
  cursor: pointer;
  font-weight: 500;
  transition: all 0.2s;
}

.tab-btn.active {
  background: var(--accent);
  color: white;
}

.tab-btn:hover:not(.active) {
  background: var(--bg-hover);
}

.admin-service-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px;
  background: var(--bg-secondary);
  border-radius: 14px;
  margin-bottom: 12px;
  border: 1px solid var(--border);
}

.admin-service-info {
  flex: 1;
}

.admin-service-name {
  font-weight: 600;
  margin-bottom: 4px;
}

.admin-service-meta {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.admin-service-actions {
  display: flex;
  gap: 10px;
}

.btn-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.btn-edit {
  background: rgba(99, 102, 241, 0.15);
  color: var(--accent);
}

.btn-edit:hover {
  background: var(--accent);
  color: white;
}

.btn-delete {
  background: rgba(239, 68, 68, 0.15);
  color: var(--danger);
}

.btn-delete:hover {
  background: var(--danger);
  color: white;
}

/* Telegram Section */
.telegram-section {
  background: var(--bg-secondary);
  border-radius: 14px;
  padding: 20px;
  margin-bottom: 20px;
}

.telegram-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.telegram-icon {
  width: 45px;
  height: 45px;
  background: linear-gradient(135deg, #0088cc 0%, #00a8e8 100%);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
}

.telegram-status {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
}

.telegram-status.active {
  background: rgba(16, 185, 129, 0.15);
  color: var(--success);
}

.telegram-status.inactive {
  background: rgba(139, 139, 158, 0.15);
  color: var(--text-secondary);
}

/* Loading & Empty States */
.loading {
  text-align: center;
  color: var(--text-secondary);
  padding: 40px;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 15px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-secondary);
}

.empty-state .icon {
  font-size: 4rem;
  margin-bottom: 20px;
  opacity: 0.5;
}

.empty-state p {
  font-size: 1.1rem;
  margin-bottom: 20px;
}

/* Hidden */
.hidden {
  display: none !important;
}

/* Responsive */
@media (max-width: 1200px) {
  .resources-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .uptime-section {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 15px;
  }

  header {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }

  .resources-grid {
    grid-template-columns: 1fr;
  }

  .service-header {
    flex-wrap: wrap;
  }

  .service-uptime-bar {
    width: 100%;
    align-items: flex-start;
    margin-top: 10px;
  }

  .service-details {
    grid-template-columns: 1fr;
  }

  .modal-content {
    width: 95%;
    margin: 10px;
  }
}