:root {
  --primary-color: #00ff88;
  --primary-dark: #00cc6a;
  --bg-dark: #0a0e14;
  --bg-card: #111827;
  --bg-input: #1a2234;
  --text-primary: #ffffff;
  --text-secondary: #8b9db5;
  --border-color: #2a3a4d;
  --danger-color: #ff4757;
  --warning-color: #ffa502;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
}

.header {
  background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-dark) 100%);
  border-bottom: 1px solid var(--border-color);
  padding: 16px 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: bold;
}

.logo-text {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
}

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

.nav-link {
  padding: 8px 16px;
  border-radius: 6px;
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 14px;
  transition: all 0.2s;
}

.nav-link:hover, .nav-link.active {
  background-color: var(--bg-input);
  color: var(--primary-color);
}

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

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: bold;
}

.btn {
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  color: #000;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 255, 136, 0.3);
}

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

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

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

.btn-info {
  background: linear-gradient(135deg, #60a5fa, #3b82f6);
  color: white;
}

.btn-info:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(96, 165, 250, 0.3);
}

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

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
}

.card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

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

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 12px 14px;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 14px;
  transition: all 0.2s;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(0, 255, 136, 0.1);
}

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

.form-select {
  width: 100%;
  padding: 12px 14px;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 14px;
}

textarea.form-control {
  min-height: 120px;
  resize: vertical;
}

.grid {
  display: grid;
  gap: 20px;
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.stat-card {
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(0, 255, 136, 0.05) 100%);
  border: 1px solid rgba(0, 255, 136, 0.2);
  border-radius: 12px;
  padding: 24px;
}

.stat-value {
  font-size: 32px;
  font-weight: 700;
  color: var(--primary-color);
}

.stat-label {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 4px;
}

.table {
  width: 100%;
  border-collapse: collapse;
}

.table th, .table td {
  padding: 12px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.table th {
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 13px;
  text-transform: uppercase;
}

.table tr:hover {
  background-color: var(--bg-input);
}

.status-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
}

.status-active {
  background-color: rgba(0, 255, 136, 0.15);
  color: var(--primary-color);
}

.status-draft {
  background-color: rgba(255, 165, 2, 0.15);
  color: var(--warning-color);
}

.status-completed {
  background-color: rgba(59, 130, 246, 0.15);
  color: #60a5fa;
}

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  width: 90%;
  max-width: 600px;
  max-height: 80vh;
  overflow-y: auto;
  transform: scale(0.9);
  transition: transform 0.2s;
}

.modal-overlay.active .modal {
  transform: scale(1);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
}

.modal-title {
  font-size: 16px;
  font-weight: 600;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 20px;
  cursor: pointer;
}

.modal-body {
  padding: 20px;
}

.modal-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-color);
  border-radius: 50%;
  border-top-color: var(--primary-color);
  animation: spin 0.8s linear infinite;
}

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

.alert {
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 16px;
  font-size: 14px;
}

.alert-success {
  background-color: rgba(0, 255, 136, 0.1);
  border: 1px solid rgba(0, 255, 136, 0.3);
  color: var(--primary-color);
}

.alert-error {
  background-color: rgba(255, 71, 87, 0.1);
  border: 1px solid rgba(255, 71, 87, 0.3);
  color: var(--danger-color);
}

.alert-warning {
  background-color: rgba(255, 165, 2, 0.1);
  border: 1px solid rgba(255, 165, 2, 0.3);
  color: var(--warning-color);
}

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
  
  .nav {
    display: none;
  }
  
  .header-content {
    flex-wrap: wrap;
    gap: 12px;
  }
}