* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    
    :root {
      --primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      --secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
      --success: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
      --warning: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
      --danger: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
      --dark-bg: #0f0f23;
      --card-bg: rgba(255, 255, 255, 0.95);
      --glass-bg: rgba(255, 255, 255, 0.1);
      --text-primary: #2d3748;
      --text-secondary: #718096;
      --border: rgba(255, 255, 255, 0.2);
      --shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
      --shadow-hover: 0 30px 80px rgba(0, 0, 0, 0.2);
    }
    
    body {
      font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
      background: var(--dark-bg);
      color: white;
      line-height: 1.6;
      overflow-x: hidden;
    }
    
    .bg-animated {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: var(--dark-bg);
      z-index: -2;
    }
    
    .bg-animated::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: 
        radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(120, 219, 226, 0.2) 0%, transparent 50%);
      animation: float 20s ease-in-out infinite;
    }
    
    @keyframes float {
      0%, 100% { transform: translateY(0px) rotate(0deg); }
      50% { transform: translateY(-20px) rotate(5deg); }
    }
    
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
      position: relative;
      z-index: 1;
    }
    
    header {
      backdrop-filter: blur(20px);
      border-bottom: 1px solid var(--border);
      padding: 2rem 0;
      position: block;
      top: 0;
      z-index: 100;
    }
    
    .header-content {
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      gap: 1.5rem;
    }
    
    .logo {
      font-size: 2.5rem;
      font-weight: 900;
      background: var(--primary);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    
    nav {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 1rem;
    }
    
    nav a {
      padding: 0.75rem 1.5rem;
      background: var(--glass-bg);
      backdrop-filter: blur(10px);
      border: 1px solid var(--border);
      border-radius: 50px;
      color: #667eea;
      text-decoration: none;
      font-weight: 600;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      white-space: nowrap;
    }
    
    nav a:hover {
      background: rgba(255, 255, 255, 0.2);
      transform: translateY(-2px);
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    }
    
    main {
      padding: 3rem 0;
    }
    
    .grid {
      display: grid;
      gap: 2rem;
      margin-bottom: 3rem;
    }
    
    .grid-2 {
      grid-template-columns: 1fr 1fr;
      padding-top: 48px;
    }
    
    .grid-3 {
      grid-template-columns: repeat(3, 1fr);
    }
    
    .card {
      background: var(--card-bg);
      backdrop-filter: blur(20px);
      border-radius: 25px;
      padding: 2.5rem;
      border: 1px solid var(--border);
      box-shadow: var(--shadow);
      color: var(--text-primary);
      transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
      position: relative;
      overflow: hidden;
    }
    
    .card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
      opacity: 0;
      transition: opacity 0.3s ease;
      pointer-events: none;
    }
    
    .card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
    }
    
    .card:hover::before {
      opacity: 1;
    }
    
    .card h2 {
      font-size: 1.75rem;
      font-weight: 800;
      margin-bottom: 1.5rem;
      background: var(--primary);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    
    .form-grid {
      display: grid;
      gap: 1.5rem;
      margin-top: 1rem;
    }
    
    .form-group {
      display: flex;
      flex-direction: column;
    }
    
    .form-group label {
      margin-bottom: 0.5rem;
      font-weight: 600;
      color: var(--text-primary);
      font-size: 0.9rem;
      text-transform: uppercase;
      letter-spacing: 1px;
    }
    
    .form-group input,
    .form-group select {
      padding: 1rem 1.5rem;
      border: 2px solid #e2e8f0;
      border-radius: 15px;
      font-size: 1rem;
      background: white;
      transition: all 0.3s ease;
      color: var(--text-primary);
    }
    
    .form-group input:focus,
    .form-group select:focus {
      outline: none;
      border-color: #667eea;
      box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
      transform: translateY(-2px);
    }
    
    .btn {
      background: var(--primary);
      color: white;
      border: none;
      padding: 1.25rem 2rem;
      border-radius: 15px;
      font-size: 1rem;
      font-weight: 700;
      cursor: pointer;
      transition: all 0.3s ease;
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-top: 1rem;
    }
    
    .btn:hover {
      transform: translateY(-3px);
      box-shadow: 0 15px 35px rgba(102, 126, 234, 0.4);
    }
    
    .btn-danger {
      background: var(--danger);
    }
    
    .btn-success {
      background: var(--success);
    }
    
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.5rem;
      margin-bottom: 2rem;
    }
    
    .stat-card {
      background: white;
      border-radius: 20px;
      padding: 2rem 1.5rem;
      text-align: center;
      box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
      border: 1px solid rgba(0, 0, 0, 0.05);
      transition: transform 0.3s ease;
      position: relative;
      overflow: hidden;
    }
    
    .stat-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: var(--primary);
    }
    
    .stat-card:nth-child(2)::before {
      background: var(--danger);
    }
    
    .stat-card:nth-child(3)::before {
      background: var(--success);
    }
    
    .stat-card:hover {
      transform: translateY(-5px);
    }
    
    .stat-value {
      font-size: 20px;
      font-weight: 900;
      margin-bottom: 0.5rem;
      color: var(--text-primary);
    }
    
    .stat-label {
      color: var(--text-secondary);
      font-weight: 600;
      text-transform: uppercase;
      font-size: 0.875rem;
      letter-spacing: 1px;
    }
    
    .operations-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 2rem;
    }
    
    .operation-column {
      background: white;
      border-radius: 20px;
      padding: 2rem;
      box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
      border: 1px solid rgba(0, 0, 0, 0.05);
    }
    
    .operation-column h3 {
      font-size: 1.5rem;
      font-weight: 800;
      margin-bottom: 1.5rem;
      text-align: center;
      color: var(--text-primary);
      position: relative;
      padding-bottom: 1rem;
    }
    
    .operation-column h3::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 50%;
      transform: translateX(-50%);
      width: 50px;
      height: 3px;
      background: var(--primary);
      border-radius: 2px;
    }
    
    .operation-column:nth-child(1) h3::after {
      background: var(--danger);
    }
    
    .operation-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 1rem;
      margin-bottom: 0.75rem;
      background: #f8fafc;
      border-radius: 12px;
      border-left: 4px solid #e2e8f0;
      transition: all 0.3s ease;
    }
    
    .operation-item:hover {
      transform: translateX(5px);
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    }
    
    .operation-item.expense {
      border-left-color: #f56565;
      background: linear-gradient(135deg, #fff5f5 0%, #fed7d7 100%);
    }
    
    .operation-item.revenue {
      border-left-color: #48bb78;
      background: linear-gradient(135deg, #f0fff4 0%, #c6f6d5 100%);
    }
    
    .operation-content {
      flex: 1;
    }
    
    .operation-amount {
      font-weight: 800;
      font-size: 1.1rem;
    }
    
    .operation-amount.negative {
      color: #f56565;
    }
    
    .operation-amount.positive {
      color: #48bb78;
    }
    
    .delete-btn {
      background: var(--danger);
      color: white;
      border: none;
      width: 35px;
      height: 35px;
      border-radius: 50%;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: all 0.3s ease;
      margin-left: 1rem;
    }
    
    .delete-btn:hover {
      transform: scale(1.1);
      box-shadow: 0 5px 15px rgba(245, 101, 101, 0.4);
    }
    
    .chart-container {
      background: white;
      border-radius: 20px;
      padding: 2rem;
      box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
      border: 1px solid rgba(0, 0, 0, 0.05);
      margin-bottom: 2rem;
    }
    
    .chart-container h2 {
      color: var(--text-primary);
      text-align: center;
      margin-bottom: 2rem;
    }
    
    .chart-wrapper {
      position: relative;
      height: 400px;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    
    .chart-wrapper canvas {
      max-width: 100% !important;
      max-height: 100% !important;
    }
    
    .empty-state {
      text-align: center;
      padding: 3rem;
      color: var(--text-secondary);
    }
    
    .empty-state-icon {
      font-size: 4rem;
      margin-bottom: 1rem;
      opacity: 0.5;
    }
    
    footer {
      background: var(--glass-bg);
      backdrop-filter: blur(20px);
      border-top: 1px solid var(--border);
      padding: 3rem 0;
      text-align: center;
      margin-top: 4rem;
    }
    
    .footer-content {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 2rem;
    }
    
    .footer-buttons {
      display: flex;
      gap: 1rem;
      flex-wrap: wrap;
      justify-content: center;
    }
    
    .footer-links {
      display: flex;
      gap: 2rem;
      flex-wrap: wrap;
      justify-content: center;
    }
    
    .footer-links a {
      color: rgba(255, 255, 255, 0.7);
      text-decoration: none;
      transition: color 0.3s ease;
    }
    
    .footer-links a:hover {
      color: white;
    }
    
    @media (max-width: 768px) {
      .container {
        padding: 0 15px;
      }
      
      .header-content {
        gap: 1rem;
      }
      
      .logo {
        font-size: 2rem;
      }
      
      nav {
        gap: 0.5rem;
      }
      
      nav a {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
      }
      
      .grid-2,
      .grid-3,
      .stats-grid,
      .operations-container {
        grid-template-columns: 1fr;
      }
      
      .card {
        padding: 1.5rem;
      }
      
      .form-grid {
        gap: 1rem;
      }
      
      .chart-wrapper {
        height: 300px;
      }
      
      .footer-buttons,
      .footer-links {
        flex-direction: column;
        align-items: center;
      }
    }
    
    .fade-in {
      animation: fadeIn 0.8s ease-out;
    }
    
    @keyframes fadeIn {
      from { 
        opacity: 0; 
        transform: translateY(30px); 
      }
      to { 
        opacity: 1; 
        transform: translateY(0); 
      }
    }
    
    .slide-in {
      animation: slideIn 0.6s ease-out;
    }
    
    @keyframes slideIn {
      from { 
        opacity: 0; 
        transform: translateX(-30px); 
      }
      to { 
        opacity: 1; 
        transform: translateX(0); 
      }
    }