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

    body {
      background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
      min-height: 100vh;
      padding: 20px;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .premium-container {
      max-width: 620px;
      width: 100%;
      background: #fff;
      border-radius: 24px;
      box-shadow: 
        0 10px 40px rgba(0, 0, 0, 0.08),
        0 1px 4px rgba(0, 0, 0, 0.05);
      overflow: hidden;
      animation: slideUp 0.5s ease-out;
      border: 1px solid rgba(255, 255, 255, 0.2);
    }

    @keyframes slideUp {
      from {
        opacity: 0;
        transform: translateY(30px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    .premium-header {
      background: #fff;
      padding: 36px 32px 32px;
      text-align: center;
      position: relative;
      border-bottom: 1px solid #f1f3f5;
    }

    .header-icon {
      width: 64px;
      height: 64px;
      background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
      border-radius: 18px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 20px;
      box-shadow: 0 8px 20px rgba(40, 167, 69, 0.15);
      position: relative;
    }

    .header-icon::after {
      content: '';
      position: absolute;
      top: -2px;
      left: -2px;
      right: -2px;
      bottom: -2px;
      background: linear-gradient(135deg, #28a745, #20c997);
      border-radius: 20px;
      z-index: -1;
      opacity: 0.3;
    }

    .header-icon span {
      font-size: 28px;
      color: white;
    }

    .premium-header h1 {
      color: #212529;
      font-size: 28px;
      font-weight: 700;
      margin-bottom: 8px;
      letter-spacing: -0.5px;
    }

    .premium-header p {
      color: #6c757d;
      font-size: 15px;
      font-weight: 400;
      max-width: 480px;
      margin: 0 auto;
      line-height: 1.5;
    }

    .premium-form {
      padding: 32px;
    }

    .form-section {
      margin-bottom: 32px;
    }

    .section-title {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 15px;
      font-weight: 600;
      color: #212529;
      margin-bottom: 16px;
      padding-bottom: 12px;
      border-bottom: 1px solid #f1f3f5;
    }

    .section-title i {
      color: #28a745;
      font-size: 16px;
      width: 20px;
      text-align: center;
    }

    .form-group {
      margin-bottom: 24px;
    }

    .input-wrapper {
      position: relative;
    }

    .premium-input,
    .premium-textarea,
    .premium-select {
      width: 100%;
      padding: 16px 18px;
      border: 2px solid #e9ecef;
      border-radius: 12px;
      font-size: 15px;
      outline: none;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      background: #f8f9fa;
      font-family: 'Inter', sans-serif;
      color: #212529;
    }

    .premium-textarea {
      resize: none;
      min-height: 120px;
      padding-bottom: 45px;
      line-height: 1.5;
    }

    .premium-input:focus,
    .premium-textarea:focus,
    .premium-select:focus {
      background: white;
      border-color: #28a745;
      box-shadow: 0 0 0 4px rgba(40, 167, 69, 0.1);
    }

    .premium-input::placeholder,
    .premium-textarea::placeholder {
      color: #adb5bd;
    }

    .char-counter {
      position: absolute;
      bottom: 16px;
      right: 18px;
      font-size: 12px;
      color: #6c757d;
      font-weight: 500;
      background: rgba(255, 255, 255, 0.9);
      padding: 4px 8px;
      border-radius: 10px;
    }

    .char-counter.warning {
      color: #ff6b35;
      background: rgba(255, 107, 53, 0.1);
    }

    .char-counter.danger {
      color: #dc3545;
      background: rgba(220, 53, 69, 0.1);
    }

    .bg-selector-grid {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 12px;
      margin-top: 10px;
    }

    .bg-option {
      width: 100%;
      aspect-ratio: 1;
      border-radius: 12px;
      cursor: pointer;
      border: 2px solid transparent;
      transition: all 0.3s ease;
      position: relative;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    }

    .bg-option::after {
      content: '\f00c';
      font-family: 'Font Awesome 6 Free';
      font-weight: 900;
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%) scale(0);
      width: 24px;
      height: 24px;
      background: #28a745;
      color: white;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      transition: transform 0.3s ease;
      z-index: 2;
    }

    .bg-option.selected {
      border-color: #28a745;
      box-shadow: 0 4px 12px rgba(40, 167, 69, 0.15);
      transform: scale(1.05);
    }

    .bg-option.selected::after {
      transform: translate(-50%, -50%) scale(1);
    }

    .bg-option:hover {
      transform: scale(1.05);
    }

    .error-message {
      display: none;
      color: #dc3545;
      font-size: 13px;
      margin-top: 8px;
      font-weight: 500;
      animation: fadeIn 0.3s;
      align-items: center;
      gap: 6px;
    }

    .error-message.show {
      display: flex;
    }

    @keyframes fadeIn {
      from { opacity: 0; }
      to { opacity: 1; }
    }

    .form-actions {
      display: flex;
      gap: 16px;
      margin-top: 40px;
      padding-top: 24px;
      border-top: 1px solid #f1f3f5;
    }

    .btn {
      flex: 1;
      padding: 16px 24px;
      border: none;
      border-radius: 12px;
      font-size: 15px;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      letter-spacing: 0.3px;
    }

    .btn-primary {
      background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
      color: white;
      box-shadow: 0 4px 14px rgba(40, 167, 69, 0.25);
    }

    .btn-primary:hover:not(:disabled) {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(40, 167, 69, 0.35);
    }

    .btn-primary:active:not(:disabled) {
      transform: translateY(0);
    }

    .btn-primary:disabled {
      opacity: 0.6;
      cursor: not-allowed;
      transform: none;
    }

    .btn-secondary {
      background: #f8f9fa;
      color: #495057;
      border: 2px solid #e9ecef;
    }

    .btn-secondary:hover {
      background: #e9ecef;
      border-color: #dee2e6;
      transform: translateY(-1px);
    }

    .spinner {
      width: 18px;
      height: 18px;
      border: 2px solid rgba(255, 255, 255, 0.3);
      border-top-color: white;
      border-radius: 50%;
      animation: spin 0.6s linear infinite;
    }

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

    .toast {
      position: fixed;
      bottom: 30px;
      left: 50%;
      transform: translateX(-50%) translateY(100px);
      background: white;
      color: #212529;
      padding: 18px 24px;
      border-radius: 14px;
      box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
      display: flex;
      align-items: center;
      gap: 14px;
      min-width: 300px;
      max-width: 400px;
      opacity: 0;
      transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
      z-index: 1000;
      border-left: 4px solid;
    }

    .toast.show {
      opacity: 1;
      transform: translateX(-50%) translateY(0);
    }

    .toast.success {
      border-left-color: #28a745;
    }

    .toast.error {
      border-left-color: #dc3545;
    }

    .toast i {
      font-size: 22px;
    }

    .toast.success i {
      color: #28a745;
    }

    .toast.error i {
      color: #dc3545;
    }

    .info-card {
      background: linear-gradient(135deg, rgba(40, 167, 69, 0.05) 0%, rgba(32, 201, 151, 0.05) 100%);
      border: 1px solid rgba(40, 167, 69, 0.15);
      padding: 18px 20px;
      border-radius: 14px;
      font-size: 14px;
      margin-bottom: 28px;
      display: flex;
      align-items: flex-start;
      gap: 12px;
      color: #2b8a3e;
    }

    .info-card i {
      color: #28a745;
      font-size: 16px;
      margin-top: 2px;
      flex-shrink: 0;
    }

    .info-card span {
      line-height: 1.5;
    }

    .input-with-icon {
      position: relative;
    }

    .input-icon {
      position: absolute;
      left: 18px;
      top: 50%;
      transform: translateY(-50%);
      color: #28a745;
      font-size: 16px;
    }

    .input-with-icon .premium-input {
      padding-left: 48px;
    }

    .budget-prefix {
      position: absolute;
      left: 18px;
      top: 50%;
      transform: translateY(-50%);
      font-weight: 600;
      color: #28a745;
    }

    @media (max-width: 640px) {
      body {
        padding: 12px;
      }

      .premium-container {
        border-radius: 20px;
      }

      .premium-header {
        padding: 28px 24px 24px;
      }

      .premium-header h1 {
        font-size: 24px;
      }

      .premium-form {
        padding: 24px;
      }

      .form-actions {
        flex-direction: column;
        gap: 12px;
      }

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

      .toast {
        min-width: calc(100% - 40px);
        max-width: calc(100% - 40px);
        bottom: 20px;
      }
    }

    @media (max-width: 480px) {
      .bg-selector-grid {
        grid-template-columns: repeat(3, 1fr);
      }
    }

    /* Floating label effect */
    .floating-label {
      position: relative;
      margin-top: 8px;
    }

    .floating-label .premium-input,
    .floating-label .premium-select {
      padding-top: 24px;
      padding-bottom: 12px;
    }

    .floating-label label {
      position: absolute;
      top: 18px;
      left: 18px;
      font-size: 15px;
      color: #6c757d;
      pointer-events: none;
      transition: all 0.3s ease;
    }

    .floating-label .premium-input:focus + label,
    .floating-label .premium-input:not(:placeholder-shown) + label,
    .floating-label .premium-select:focus + label,
    .floating-label .premium-select:not([value=""]) + label {
      top: 8px;
      font-size: 12px;
      color: #28a745;
      font-weight: 600;
    }