:root {
    /* Typography */
    --font-body--family: "Inter", sans-serif;
    --font-heading--family: "Inter", sans-serif;
    
    /* Colors */
    --color-primary: #1e1f21;
    --color-primary-dark: #081a32;
    --color-text-dark: #2d3748;
    --color-text-light: #718096;
    --color-border: #e2e8f0;
    --color-input-bg: #ffffff;
    --color-error: #e53e3e;
  }
  
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: var(--font-body--family);
    color: var(--color-text-dark);
    line-height: 1.6;
    overflow-x: hidden;
  }
  
  /* Registration Container */
  .registration-container {
    display: flex;
    min-height: 100vh;
    background: #ffffff;
  }
  
  /* Left Side - Topographic Pattern */
  .registration-left {
    flex: 1;
    background: var(--color-primary);
    position: relative;
    overflow: hidden;
    display: none;
  }
  
  @media (min-width: 992px) {
    .registration-left {
      display: block;
    }
  }
  
  .topo-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
      repeating-linear-gradient(
        0deg,
        transparent,
        transparent 40px,
        rgba(255, 255, 255, 0.05) 40px,
        rgba(255, 255, 255, 0.05) 41px
      ),
      repeating-linear-gradient(
        90deg,
        transparent,
        transparent 40px,
        rgba(255, 255, 255, 0.05) 40px,
        rgba(255, 255, 255, 0.05) 41px
      );
    opacity: 0.3;
  }
  
  .topo-circles {
    position: absolute;
    width: 100%;
    height: 100%;
  }
  
  .circle {
    position: absolute;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: pulse 8s ease-in-out infinite;
  }
  
  .circle:nth-child(1) {
    width: 300px;
    height: 300px;
    top: 20%;
    left: 10%;
    animation-delay: 0s;
  }
  
  .circle:nth-child(2) {
    width: 200px;
    height: 200px;
    top: 50%;
    left: 60%;
    animation-delay: 2s;
  }
  
  .circle:nth-child(3) {
    width: 400px;
    height: 400px;
    top: 60%;
    left: 20%;
    animation-delay: 4s;
  }
  
  @keyframes pulse {
    0%, 100% {
      transform: scale(1);
      opacity: 0.3;
    }
    50% {
      transform: scale(1.1);
      opacity: 0.5;
    }
  }
  
  .registration-logo {
    position: absolute;
    top: 40px;
    left: 40px;
    z-index: 10;
  }
  
  .registration-logo img {
    height: 40px;
    width: auto;
  }
  
  /* Mobile Logo */
  .mobile-logo {
    display: none;
    position: absolute;
    top: 20px;
    left: 20px;
    z-index: 10;
  }
  
  .mobile-logo img {
    height: 33px;
    width: auto;
  }
  
  @media (max-width: 991px) {
    .mobile-logo {
      display: block;
    }
  }
  
  /* Right Side - Form */
  .registration-right {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 40px 40px 40px;
    background: #ffffff;
    position: relative;
  }
  
  @media (max-width: 991px) {
    .registration-right {
      padding: 80px 40px 40px 40px;
    }
  }
  
  @media (max-width: 576px) {
    .registration-right {
      padding: 80px 2.5rem 40px 2.5rem;
    }
  }
  
  .registration-form-container {
    width: 100%;
    max-width: 480px;
  }
  
  .registration-header {
    margin-bottom: 48px;
  }
  
  .registration-header h1 {
    font-family: var(--font-heading--family);
    font-size: 2.5rem;
    font-weight: 600;
    color: #1e1f21;
    margin-bottom: 8px;
  }
  
  .auth-subtitle {
    color: var(--color-text-light);
    font-size: 1rem;
    margin-top: 8px;
  }
  
  /* Form Steps */
  .form-step {
    display: none;
  }
  
  .form-step.active {
    display: block;
    animation: fadeIn 0.3s ease-in;
  }
  
  @keyframes fadeIn {
    from {
      opacity: 0;
      transform: translateY(10px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  /* Form Groups */
  .form-group {
    margin-bottom: 24px;
  }
  
  .form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-dark);
    margin-bottom: 8px;
  }
  
  .form-group input,
  .form-group select {
    width: 100%;
    padding: 0.5rem 1.5rem;
    font-size: 1rem;
    font-family: var(--font-body--family);
    color: var(--color-text-dark);
    background: var(--color-input-bg);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    transition: all 0.3s ease;
  }
  
  .form-group input:focus,
  .form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(10, 35, 66, 0.1);
  }
  
  .form-group input::placeholder {
    color: var(--color-text-light);
  }
  
  .form-group.error input,
  .form-group.error select {
    border-color: var(--color-error);
  }
  
  .error-message {
    display: none;
    font-size: 0.75rem;
    color: var(--color-error);
    margin-top: 4px;
  }
  
  .form-group.error .error-message {
    display: block;
  }
  
  /* Form Extras - Remember Me & Forgot Password */
  .form-extras {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 12px;
  }
  
  .form-checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
  }
  
  .form-checkbox input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--color-primary);
  }
  
  .form-checkbox label {
    font-size: 0.875rem;
    color: var(--color-text-dark);
    cursor: pointer;
    margin: 0;
  }
  
  .forgot-link {
    font-size: 0.875rem;
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
  }
  
  .forgot-link:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
  }
  
  /* Buttons */
  .form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 32px;
  }
  
  .btn {
    padding: 12px 32px;
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-heading--family);
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
  }
  
  .btn-primary {
    background: var(--color-primary);
    color: #ffffff;
  }
  
  .btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(10, 35, 66, 0.2);
  }
  
  .btn-secondary {
    background: transparent;
    color: var(--color-text-dark);
    border: 1px solid var(--color-border);
  }
  
  .btn-secondary:hover {
    background: #f7fafc;
  }
  
  /* .btn-full {
    width: 100%;
  } */
  
  .btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
  }
  
  /* Desktop Button Styles */
  @media (min-width: 992px) {
    .form-actions {
      justify-content: flex-end;
    }
  }
  
  /* Mobile Button Styles - Compact buttons like Albatrox */
  @media (max-width: 991px) {
    .form-actions {
      justify-content: flex-end;
      gap: 12px;
    }
  
    .btn:not(.btn-full) {
      padding: 10px 24px;
      font-size: 0.9rem;
      width: auto;
      min-width: auto;
    }
  }
  
  /* Footer Link */
  .registration-footer {
    text-align: center;
    margin-top: 32px;
    font-size: 0.875rem;
    color: var(--color-text-light);
  }
  
  .registration-footer a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
  }
  
  .registration-footer a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
  }
  
  /* Progress Indicator */
  .progress-indicator {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 32px;
  }
  
  .progress-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-border);
    transition: all 0.3s ease;
  }
  
  .progress-dot.active {
    background: var(--color-primary);
    width: 24px;
    border-radius: 4px;
  }
  
  /* Responsive */
  @media (max-width: 991px) {
    .registration-header h1 {
      font-size: 2rem;
    }
  }
  
  @media (max-width: 576px) {
    .registration-header h1 {
      font-size: 1.75rem;
    }
    
    .registration-header {
      margin-bottom: 32px;
    }
  
    .form-extras {
      flex-direction: column;
      align-items: flex-start;
    }
  }