:root {
      --color-primary: #1c68b3;
      --color-secondary: #4687c4;
      --color-accent: #618ec7;
      --color-light: #a4c3e3;
      --color-bg: #76a4d3;
      --success: #16a085;
      --warning: #f39c12;
      --danger: #e74c3c;
      --bg-gradient: linear-gradient(135deg, var(--color-bg) 0%, var(--color-secondary) 100%);
    }
    
    html, body {
      height: 100%;
      font-family: "Cairo", sans-serif;
      background: var(--bg-gradient);
      overflow-x: hidden;
    }
    
    .main-container {
      min-height: 100vh;
      backdrop-filter: blur(10px);
      padding: 2rem 0;
    }
    
    .card {
      border: none;
      border-radius: 1.5rem;
      background: rgba(255, 255, 255, 0.98);
      backdrop-filter: blur(20px);
      box-shadow: 0 20px 60px rgba(28, 104, 179, 0.15);
      transition: all 0.3s ease;
    }
    
    .card:hover {
      transform: translateY(-2px);
      box-shadow: 0 25px 80px rgba(28, 104, 179, 0.2);
    }
    
    .step-indicator {
      position: relative;
      display: flex;
      justify-content: space-between;
      margin-bottom: 3rem;
    }
    
    .step-item {
      flex: 1;
      position: relative;
      text-align: center;
      opacity: 0.4;
      transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    .step-item.active {
      opacity: 1;
      transform: scale(1.05);
    }
    
    .step-item.completed {
      opacity: 1;
    }
    
    .step-circle {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--color-light);
      color: white;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 0.5rem;
      transition: all 0.4s ease;
      position: relative;
      z-index: 2;
      font-weight: 600;
    }
    
    .step-item.active .step-circle {
      background: var(--color-primary);
      color: white;
      transform: scale(1.1);
      box-shadow: 0 0 20px rgba(28, 104, 179, 0.4);
    }
    
    .step-item.completed .step-circle {
      background: var(--success);
      color: white;
    }
    
    .step-connector {
      position: absolute;
      top: 24px;
      right: calc(50% + 24px);
      left: calc(-50% + 24px);
      height: 2px;
      background: var(--color-light);
      transition: all 0.4s ease;
      z-index: 1;
    }
    
    .step-item.completed .step-connector {
      background: var(--success);
    }
    
    .step-panel {
      opacity: 0;
      transform: translateX(20px);
      transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
      position: absolute;
      width: 100%;
      top: 0;
      pointer-events: none;
    }
    
    .step-panel.active {
      opacity: 1;
      transform: translateX(0);
      position: relative;
      pointer-events: auto;
    }
    
    .form-control, .form-select {
      border: 2px solid var(--color-light);
      border-radius: 1rem;
      padding: 1rem 1.5rem;
      font-size: 1rem;
      transition: all 0.3s ease;
      background: rgba(255, 255, 255, 0.9);
      font-family: "Cairo", sans-serif;
    }
    
    .form-control:focus, .form-select:focus {
      border-color: var(--color-primary);
      box-shadow: 0 0 0 4px rgba(28, 104, 179, 0.1);
      background: white;
      transform: translateY(-1px);
    }
    
    .form-control.is-invalid {
      border-color: var(--danger);
      animation: shake 0.5s ease-in-out;
    }
    
    @keyframes shake {
      0%, 100% { transform: translateX(0); }
      25% { transform: translateX(-5px); }
      75% { transform: translateX(5px); }
    }
    
    .btn {
      border-radius: 1rem;
      padding: 1rem 2rem;
      font-weight: 600;
      font-family: "Cairo", sans-serif;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      border: none;
      position: relative;
      overflow: hidden;
    }
    
    .btn:before {
      content: '';
      position: absolute;
      top: 0;
      left: -100%;
      width: 100%;
      height: 100%;
      background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
      transition: left 0.5s;
    }
    
    .btn:hover:before {
      left: 100%;
    }
    
    .btn-primary {
      background: linear-gradient(45deg, var(--color-primary), var(--color-secondary));
      color: white;
      box-shadow: 0 4px 15px rgba(28, 104, 179, 0.3);
    }
    
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 25px rgba(28, 104, 179, 0.4);
      background: linear-gradient(45deg, var(--color-secondary), var(--color-accent));
    }
    
    .btn-success {
      background: linear-gradient(45deg, var(--success), #1abc9c);
      color: white;
      box-shadow: 0 4px 15px rgba(22, 160, 133, 0.3);
    }
    
    .btn-success:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 25px rgba(22, 160, 133, 0.4);
    }
    
    .btn-outline-secondary {
      border: 2px solid var(--color-accent);
      color: var(--color-primary);
      background: transparent;
    }
    
    .btn-outline-secondary:hover {
      background: var(--color-accent);
      color: white;
      transform: translateY(-2px);
    }
    
    .btn:disabled {
      opacity: 0.7;
      transform: none !important;
      box-shadow: none !important;
    }
    
    .contact-option {
      border: 2px solid var(--color-light);
      border-radius: 1rem;
      padding: 1.5rem;
      cursor: pointer;
      transition: all 0.3s ease;
      background: rgba(255, 255, 255, 0.9);
      position: relative;
      margin-bottom: 1rem;
    }
    
    .contact-option:hover {
      border-color: var(--color-primary);
      transform: translateY(-2px);
      box-shadow: 0 8px 25px rgba(28, 104, 179, 0.15);
    }
    
    .contact-option.selected {
      border-color: var(--color-primary);
      background: rgba(28, 104, 179, 0.05);
    }
    
    .contact-option input[type="radio"] {
      position: absolute;
      opacity: 0;
    }
    
    .radio-custom {
      width: 20px;
      height: 20px;
      border: 2px solid var(--color-accent);
      border-radius: 50%;
      position: relative;
      transition: all 0.3s ease;
    }
    
    .contact-option.selected .radio-custom {
      border-color: var(--color-primary);
      background: var(--color-primary);
    }
    
    .radio-custom:after {
      content: '';
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: white;
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%) scale(0);
      transition: transform 0.2s ease;
    }
    
    .contact-option.selected .radio-custom:after {
      transform: translate(-50%, -50%) scale(1);
    }
    
    .otp-input {
      text-align: center;
      font-size: 2rem;
      font-weight: 700;
      letter-spacing: 0.5rem;
      background: rgba(28, 104, 179, 0.05);
      font-family: "Cairo", sans-serif;
    }
    
    .timer-circle {
      width: 80px;
      height: 80px;
      border-radius: 50%;
      background: conic-gradient(var(--color-primary) 0deg, var(--color-light) 0deg);
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 1rem;
      position: relative;
      transition: all 0.3s ease;
    }
    
    .timer-inner {
      width: 68px;
      height: 68px;
      background: white;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-family: "Cairo", sans-serif;
      color: var(--color-primary);
    }
    
    .alert {
      border: none;
      border-radius: 1rem;
      padding: 1rem 1.5rem;
      backdrop-filter: blur(10px);
      animation: slideInUp 0.4s ease-out;
    }
    
    @keyframes slideInUp {
      from {
        opacity: 0;
        transform: translateY(20px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }
    
    .loading-overlay {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(5px);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      z-index: 9999;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.3s ease;
      font-family: "Cairo", sans-serif;
    }
    
    .loading-overlay.active {
      opacity: 1;
      pointer-events: auto;
    }
    
    .form-label {
      color: var(--color-primary);
      font-weight: 600;
      font-family: "Cairo", sans-serif;
    }
    
    .text-muted {
      color: var(--color-accent) !important;
    }
    
    .btn-link {
      color: var(--color-primary);
      font-family: "Cairo", sans-serif;
    }
    
    .btn-link:hover {
      color: var(--color-secondary);
    }
    
    .spinner {
      width: 50px;
      height: 50px;
      border: 4px solid var(--color-light);
      border-top: 4px solid var(--color-primary);
      border-radius: 50%;
      animation: spin 1s linear infinite;
    }
    
    @keyframes spin {
      0% { transform: rotate(0deg); }
      100% { transform: rotate(360deg); }
    }
    
    .password-strength {
      height: 4px;
      border-radius: 2px;
      margin-top: 0.5rem;
      transition: all 0.3s ease;
      background: var(--color-light);
    }
    
    .strength-weak { 
      background: var(--danger); 
      width: 33%; 
    }
    
    .strength-medium { 
      background: var(--warning); 
      width: 66%; 
    }
    
    .strength-strong { 
      background: var(--success); 
      width: 100%; 
    }
    
    .step-content {
      position: relative;
      min-height: 400px;
    }
    
    .info-card {
      background: rgba(28, 104, 179, 0.05);
      border: 1px solid rgba(28, 104, 179, 0.1);
      border-radius: 1rem;
      backdrop-filter: blur(10px);
    }
    
    @media (max-width: 768px) {
      .step-text { font-size: 0.8rem; }
      .step-circle { width: 40px; height: 40px; }
      .step-connector { top: 20px; }
      .card { margin: 0 1rem; }
    }