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

    :root {
      --bg: #0a0a0f;
      --surface: #111118;
      --surface-light: #1a1a24;
      --border: #2a2a35;
      --primary: #a26cff;
      --primary-light: #b48aff;
      --text: #ffffff;
      --text-dim: #a0a0b0;
      --success: #4CAF50;
      --success-bg: rgba(76, 175, 80, 0.1);
      --danger: #f44336;
      --danger-bg: rgba(244, 67, 54, 0.1);
      --warning: #ffb74d;
      --warning-bg: rgba(255, 183, 77, 0.1);
    }

    body {
      font-family: "Inter", sans-serif;
      background: var(--bg);
      color: var(--text);
      min-height: 100vh;
      display: flex;
      flex-direction: column;
    }

    /* Header */
    .header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(10, 10, 15, 0.8);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border);
    }

    .header-content {
      max-width: 1400px;
      margin: 0 auto;
      padding: 16px 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

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

    .logo i {
      font-size: 28px;
      color: var(--primary);
    }

    .logo h1 {
      font-size: 1.3rem;
      font-weight: 600;
      color: var(--primary-light);
    }

    .user-menu {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .user-avatar {
      width: 40px;
      height: 40px;
      border-radius: 40px;
      background: var(--surface-light);
      border: 2px solid var(--primary);
      overflow: hidden;
    }

    .user-avatar img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .icon-btn {
      width: 40px;
      height: 40px;
      border-radius: 12px;
      background: var(--surface);
      border: 1px solid var(--border);
      color: var(--text-dim);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: all 0.2s;
    }

    .icon-btn:hover {
      background: var(--primary);
      color: var(--bg);
      border-color: var(--primary);
      transform: translateY(-2px);
    }

    /* Main */
    .main {
      flex: 1;
      max-width: 1400px;
      width: 100%;
      margin: 0 auto;
      padding: 32px 24px;
    }

    /* Auth Cards */
    .auth-card {
      max-width: 400px;
      margin: 60px auto;
      background: var(--surface);
      border-radius: 32px;
      border: 1px solid var(--border);
      padding: 32px;
    }

    .auth-card h2 {
      font-size: 1.8rem;
      font-weight: 500;
      margin-bottom: 8px;
    }

    .auth-card p {
      color: var(--text-dim);
      margin-bottom: 32px;
    }

    /* Stats */
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-bottom: 40px;
    }

    .stat-card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 24px;
      padding: 20px;
      transition: all 0.2s;
      animation: fadeInUp 0.3s ease;
    }

    .stat-card:hover {
      border-color: var(--primary);
      transform: translateY(-2px);
    }

    .stat-icon {
      width: 48px;
      height: 48px;
      background: var(--surface-light);
      border-radius: 16px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 20px;
      margin-bottom: 16px;
    }

    .stat-label {
      color: var(--text-dim);
      font-size: 0.9rem;
      margin-bottom: 4px;
    }

    .stat-value {
      font-size: 2rem;
      font-weight: 600;
    }

    /* Section Header */
    .section-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 24px;
    }

    .section-header h2 {
      font-size: 1.3rem;
      font-weight: 500;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .section-header h2 i {
      color: var(--primary);
    }

    .btn-primary {
      background: var(--primary);
      color: var(--bg);
      border: none;
      padding: 12px 24px;
      border-radius: 40px;
      font-weight: 500;
      display: flex;
      align-items: center;
      gap: 8px;
      cursor: pointer;
      transition: all 0.2s;
    }

    .btn-primary:hover {
      background: var(--primary-light);
      transform: scale(1.02);
    }

    .btn-outline {
      background: transparent;
      border: 1px solid var(--border);
      color: var(--text-dim);
      padding: 10px 20px;
      border-radius: 40px;
      display: flex;
      align-items: center;
      gap: 8px;
      cursor: pointer;
      transition: all 0.2s;
    }

    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--text);
    }

    /* Groups Grid */
    .groups-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-bottom: 40px;
    }

    .group-card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 24px;
      padding: 20px;
      transition: all 0.2s;
      animation: fadeInUp 0.3s ease;
    }

    .group-card:hover {
      border-color: var(--primary);
      transform: translateY(-2px);
    }

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

    .group-code {
      font-size: 0.85rem;
      color: var(--primary);
      background: var(--surface-light);
      padding: 4px 12px;
      border-radius: 40px;
    }

    .status-badge {
      display: flex;
      align-items: center;
      gap: 4px;
      padding: 4px 10px;
      border-radius: 40px;
      font-size: 0.75rem;
    }

    .status-ativo {
      background: var(--success-bg);
      color: var(--success);
    }

    .status-pendente {
      background: var(--warning-bg);
      color: var(--warning);
    }

    .group-info {
      margin: 16px 0;
    }

    .info-row {
      display: flex;
      margin-bottom: 8px;
      font-size: 0.9rem;
    }

    .info-label {
      width: 80px;
      color: var(--text-dim);
    }

    .info-value {
      color: var(--text);
      font-weight: 500;
    }

    .group-actions {
      display: flex;
      gap: 8px;
      margin-top: 16px;
    }

    .group-actions button {
      flex: 1;
      padding: 8px;
      border-radius: 40px;
      border: 1px solid var(--border);
      background: transparent;
      color: var(--text-dim);
      cursor: pointer;
      transition: all 0.2s;
    }

    .group-actions button:hover {
      background: var(--surface-light);
      border-color: var(--primary);
      color: var(--text);
    }

    /* Modal */
    .modal-overlay {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(0, 0, 0, 0.8);
      backdrop-filter: blur(4px);
      display: flex;
      align-items: center;
      justify-content: center;
      z-index: 1000;
      padding: 16px;
      opacity: 0;
      visibility: hidden;
      transition: all 0.2s;
    }

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

    .modal {
      background: var(--surface);
      border-radius: 32px;
      border: 1px solid var(--border);
      width: 100%;
      max-width: 500px;
      max-height: 90vh;
      overflow-y: auto;
      transform: scale(0.95);
      transition: transform 0.2s;
    }

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

    .modal-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 24px;
      border-bottom: 1px solid var(--border);
    }

    .modal-header h3 {
      font-size: 1.2rem;
      font-weight: 500;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .modal-header h3 i {
      color: var(--primary);
    }

    .modal-close {
      width: 36px;
      height: 36px;
      border-radius: 10px;
      background: var(--surface-light);
      border: 1px solid var(--border);
      color: var(--text-dim);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: all 0.2s;
    }

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

    .modal-body {
      padding: 24px;
    }

    .modal-footer {
      padding: 16px 24px 24px;
      display: flex;
      gap: 12px;
      border-top: 1px solid var(--border);
    }

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

    .form-group label {
      display: block;
      color: var(--text-dim);
      font-size: 0.9rem;
      margin-bottom: 8px;
    }

    .form-control {
      width: 100%;
      background: var(--surface-light);
      border: 1px solid var(--border);
      border-radius: 40px;
      padding: 14px 20px;
      color: var(--text);
      font-family: inherit;
      font-size: 1rem;
      transition: all 0.2s;
    }

    .form-control:focus {
      outline: none;
      border-color: var(--primary);
    }

    select.form-control {
      appearance: none;
      background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23a26cff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'/></svg>");
      background-repeat: no-repeat;
      background-position: right 20px center;
    }

    /* Range input */
    .range-container {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .range-input {
      flex: 1;
      height: 6px;
      -webkit-appearance: none;
      background: var(--border);
      border-radius: 10px;
      outline: none;
    }

    .range-input::-webkit-slider-thumb {
      -webkit-appearance: none;
      width: 24px;
      height: 24px;
      background: var(--primary);
      border-radius: 50%;
      cursor: pointer;
      border: 2px solid var(--bg);
      box-shadow: 0 2px 8px rgba(162, 108, 255, 0.4);
    }

    .range-value {
      min-width: 60px;
      text-align: center;
      background: var(--surface-light);
      border: 1px solid var(--border);
      border-radius: 40px;
      padding: 8px 12px;
      font-weight: 600;
      color: var(--primary);
    }

    /* Price summary */
    .price-summary {
      background: var(--surface-light);
      border-radius: 24px;
      padding: 20px;
      margin: 20px 0;
      border: 1px solid var(--border);
    }

    .price-row {
      display: flex;
      justify-content: space-between;
      margin-bottom: 12px;
      font-size: 0.95rem;
    }

    .price-row.total {
      margin-top: 16px;
      padding-top: 16px;
      border-top: 1px solid var(--border);
      font-weight: 600;
      font-size: 1.2rem;
      color: var(--primary);
    }

    .price-label {
      color: var(--text-dim);
    }

    .price-value {
      color: var(--text);
      font-weight: 500;
    }

    /* Payment Panel */
    .payment-panel {
      background: var(--surface-light);
      border-radius: 24px;
      padding: 24px;
      border: 2px dashed var(--primary);
      text-align: center;
    }

    .qr-code {
      max-width: 160px;
      margin: 20px auto;
      padding: 8px;
      background: white;
      border-radius: 16px;
    }

    .pix-code {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 40px;
      padding: 12px 16px;
      color: var(--text);
      width: 100%;
      text-align: center;
      margin: 16px 0;
      font-family: monospace;
    }

    /* Alert */
    .alert {
      padding: 12px 16px;
      border-radius: 40px;
      margin: 16px 0;
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.9rem;
    }

    .alert-success {
      background: var(--success-bg);
      color: var(--success);
    }

    .alert-error {
      background: var(--danger-bg);
      color: var(--danger);
    }

    /* Loading */
    .loading-spinner {
      display: inline-block;
      width: 18px;
      height: 18px;
      border: 2px solid rgba(255,255,255,0.1);
      border-radius: 50%;
      border-top-color: var(--primary);
      animation: spin 0.6s linear infinite;
    }

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

    @keyframes fadeInUp {
      from {
        opacity: 0;
        transform: translateY(10px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    .hidden {
      display: none !important;
    }

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

    @media (max-width: 768px) {
      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
      }
      
      .groups-grid {
        grid-template-columns: 1fr;
      }

      .section-header {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
      }

      .btn-primary {
        width: 100%;
        justify-content: center;
      }

      .footer-content {
        flex-direction: column;
        gap: 16px;
        text-align: center;
      }

      .footer-links {
        justify-content: center;
      }

      .range-container {
        flex-wrap: wrap;
      }

      .range-value {
        min-width: 100%;
        text-align: center;
      }
    }

    @media (max-width: 480px) {
      .stats-grid {
        grid-template-columns: 1fr;
      }

      .header-content {
        padding: 12px 16px;
      }

      .logo h1 {
        font-size: 1.1rem;
      }

      .main {
        padding: 20px 16px;
      }
    }

    /* Footer */
    .footer {
      background: var(--surface);
      border-top: 1px solid var(--border);
      padding: 24px;
      margin-top: auto;
    }

    .footer-content {
      max-width: 1400px;
      margin: 0 auto;
      display: flex;
      justify-content: space-between;
      align-items: center;
      color: var(--text-dim);
      font-size: 0.9rem;
    }

    .footer-links {
      display: flex;
      gap: 24px;
    }

    .footer-links a {
      color: var(--text-dim);
      text-decoration: none;
      transition: color 0.2s;
    }

    .footer-links a:hover {
      color: var(--primary);
    }