:root {
        --primary-blue: #2563eb;
        --primary-blue-light: #3b82f6;
        --primary-blue-dark: #1d4ed8;
        --secondary-indigo: #4f46e5;
        --accent-teal: #0d9488;
        --accent-emerald: #10b981;
        --light-bg: #f8fafc;
        --card-bg: #ffffff;
        --text-dark: #1e293b;
        --text-light: #64748b;
        --border-light: #e2e8f0;
        --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
        --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
        --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
        --gradient-primary: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-indigo) 100%);
        --gradient-success: linear-gradient(135deg, var(--accent-emerald) 0%, var(--accent-teal) 100%);
    }

    /* Main Registration Section */
    .registration-section {
        min-height: 100vh;
        background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
        padding: 100px 20px 60px;
        display: flex;
        align-items: center;
        justify-content: center;
        position: relative;
        overflow: hidden;
    }

    .registration-section::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 400px;
        background: var(--gradient-primary);
        clip-path: polygon(0 0, 100% 0, 100% 60%, 0 100%);
        z-index: 1;
    }

    .registration-container {
        max-width: 1200px;
        width: 100%;
        margin: 0 auto;
        position: relative;
        z-index: 2;
        padding-top: 20px;
    }

    /* Form Wrapper */
    .registration-wrapper {
        background: var(--card-bg);
        border-radius: 20px;
        overflow: hidden;
        box-shadow: var(--shadow-lg);
        transition: transform 0.3s ease;
    }

    .registration-wrapper:hover {
        transform: translateY(-3px);
    }

    /* Header */
    .registration-header {
        background: var(--gradient-primary);
        padding: 30px 40px;
        color: white;
        text-align: center;
    }

    .registration-header h1 {
        font-size: 2.2rem;
        font-weight: 700;
        margin-bottom: 10px;
    }

    .registration-header p {
        font-size: 1.1rem;
        opacity: 0.9;
        max-width: 800px;
        margin: 0 auto;
    }

    /* Form Content */
    .registration-content {
        padding: 40px;
    }

    /* Progress Steps */
    .progress-steps {
        display: flex;
        justify-content: space-between;
        margin-bottom: 40px;
        position: relative;
    }

    .progress-steps::before {
        content: '';
        position: absolute;
        top: 20px;
        left: 0;
        right: 0;
        height: 3px;
        background: var(--border-light);
        z-index: 1;
    }

    .progress-bar {
        position: absolute;
        top: 20px;
        left: 0;
        height: 3px;
        background: var(--accent-emerald);
        z-index: 2;
        transition: width 0.3s ease;
    }

    .step {
        position: relative;
        z-index: 3;
        text-align: center;
        flex: 1;
    }

    .step-circle {
        width: 40px;
        height: 40px;
        background: var(--card-bg);
        border: 3px solid var(--border-light);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin: 0 auto 10px;
        font-weight: 600;
        color: var(--text-light);
        transition: all 0.3s ease;
    }

    .step.active .step-circle {
        background: var(--accent-emerald);
        border-color: var(--accent-emerald);
        color: white;
        transform: scale(1.1);
    }

    .step.completed .step-circle {
        background: var(--accent-emerald);
        border-color: var(--accent-emerald);
        color: white;
    }

    .step.completed .step-circle::after {
        content: '✓';
    }

    .step-label {
        font-size: 0.9rem;
        color: var(--text-light);
        font-weight: 500;
    }

    .step.active .step-label {
        color: var(--text-dark);
        font-weight: 600;
    }

    /* Form Sections */
    .form-section {
        display: none;
        animation: fadeIn 0.5s ease;
    }

    .form-section.active {
        display: block;
    }

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

    .section-title {
        font-size: 1.5rem;
        font-weight: 600;
        color: var(--text-dark);
        margin-bottom: 25px;
        padding-bottom: 15px;
        border-bottom: 2px solid var(--border-light);
        position: relative;
    }

    .section-title::after {
        content: '';
        position: absolute;
        bottom: -2px;
        left: 0;
        width: 60px;
        height: 2px;
        background: var(--primary-blue);
    }

    /* Form Groups */
    .form-row {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 25px;
        margin-bottom: 25px;
    }

    .form-group {
        margin-bottom: 0;
    }

    .form-label {
        display: block;
        margin-bottom: 8px;
        font-weight: 500;
        color: var(--text-dark);
        font-size: 0.95rem;
    }

    .required {
        color: #ef4444;
        margin-left: 3px;
    }

    /* Form Controls */
    .form-control, .form-select {
        width: 100%;
        padding: 10px 9px;
        border: 2px solid var(--border-light);
        border-radius: 10px;
        background-color: var(--light-bg);
        transition: all 0.3s ease;
        color: var(--text-dark);
        margin: 0 !important;
    }

    .form-control:focus, .form-select:focus {
        outline: none;
        border-color: var(--primary-blue);
        background: white;
        box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
        color: black !important;
    }

    .form-control::placeholder {
        color: #94a3b8;
    }

    /* Profile Photo Upload */
    .photo-upload-container {
        text-align: center;
        padding: 20px;
        border: 2px dashed var(--border-light);
        border-radius: 12px;
        background: var(--light-bg);
        cursor: pointer;
        transition: all 0.3s ease;
    }

    .photo-upload-container:hover {
        border-color: var(--primary-blue);
        background: rgba(37, 99, 235, 0.05);
    }

    .photo-preview {
        width: 120px;
        height: 120px;
        border-radius: 50%;
        object-fit: cover;
        border: 4px solid white;
        box-shadow: var(--shadow-md);
        margin-bottom: 15px;
        display: none;
    }

    .upload-icon {
        font-size: 2.5rem;
        color: var(--primary-blue);
        margin-bottom: 10px;
    }

    .upload-text {
        color: var(--text-light);
        font-size: 0.95rem;
    }

    /* Email Verification */
    .email-verification {
        position: relative;
    }

    .verification-btn {
        position: absolute;
        right: 1px;
        top: 28%;
        transform: translateY(-50%);
        background: var(--primary-blue);
        color: white;
        border: none;
        padding: 10px 20px;
        border-radius: 8px;
        font-size: 0.9rem;
        font-weight: 500;
        cursor: pointer;
        transition: all 0.3s ease;
        white-space: nowrap;
    }

    .verification-btn:hover:not(:disabled) {
        background: var(--primary-blue-dark);
        transform: translateY(-50%) scale(1.05);
    }

    .verification-btn:disabled {
        background: #94a3b8;
        cursor: not-allowed;
    }

    .verification-btn.verified {
        background: var(--accent-emerald);
    }

    .otp-section {
        margin-top: 15px;
        padding: 20px;
        background: rgba(16, 185, 129, 0.1);
        border-radius: 10px;
        border: 1px solid rgba(16, 185, 129, 0.3);
        animation: slideDown 0.3s ease;
    }

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

    /* Multi-select Groups */
    .multiselect-group {
        padding: 20px;
        border: 2px solid var(--border-light);
        border-radius: 12px;
        background: var(--light-bg);
    }

    .multiselect-label {
        display: block;
        margin-bottom: 15px;
        font-weight: 500;
        color: var(--text-dark);
    }

    .checkbox-grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
        gap: 12px;
    }

    .checkbox-item {
        display: flex;
        align-items: center;
        gap: 8px;
        padding: 8px 12px;
        background: white;
        border-radius: 8px;
        border: 1px solid var(--border-light);
        transition: all 0.2s ease;
        cursor: pointer;
    }

    .checkbox-item:hover {
        border-color: var(--primary-blue);
        background: rgba(37, 99, 235, 0.05);
    }

    .checkbox-item input[type="checkbox"] {
        width: 18px;
        height: 18px;
        border-radius: 4px;
        border: 2px solid var(--border-light);
        cursor: pointer;
    }

    .checkbox-item input[type="checkbox"]:checked {
        background-color: var(--primary-blue);
        border-color: var(--primary-blue);
    }

    .checkbox-item label {
        margin: 0;
        cursor: pointer;
        font-size: 0.95rem;
        color: var(--text-dark);
    }

    /* Password Fields */
    .password-field {
        position: relative;
    }

    .toggle-password {
        position: absolute;
        right: 15px;
        top: 72%;
        transform: translateY(-50%);
        background: none;
        border: none;
        color: var(--text-light);
        cursor: pointer;
        font-size: 1.2rem;
        padding: 5px;
    }

    /* Navigation Buttons */
    .form-navigation {
        display: flex;
        justify-content: space-between;
        margin-top: 40px;
        padding-top: 25px;
        border-top: 1px solid var(--border-light);
    }

    .form-nav-btn {
        padding: 12px 30px;
        font-size: 1rem;
        font-weight: 500;
        border-radius: 10px;
        border: none;
        cursor: pointer;
        transition: all 0.3s ease;
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .form-nav-btn i {
        font-size: 1.1rem;
    }

    .btn-prev {
        background: var(--light-bg);
        color: var(--text-dark);
        border: 2px solid var(--border-light);
    }

    .btn-prev:hover {
        background: #e2e8f0;
        border-color: var(--text-light);
    }

    .btn-next {
        background: var(--primary-blue);
        color: white;
    }

    .btn-next:hover {
        background: var(--primary-blue-dark);
        transform: translateY(-2px);
        box-shadow: var(--shadow-md);
    }

    .btn-submit {
        background: var(--accent-emerald);
        color: white;
        padding: 12px 40px;
    }

    .btn-submit:hover {
        background: #0da271;
        transform: translateY(-2px);
        box-shadow: var(--shadow-md);
    }

    /* Success Message */
    .success-message {
        position: fixed;
        top: 20px;
        right: 20px;
        background: var(--accent-emerald);
        color: white;
        padding: 15px 25px;
        border-radius: 10px;
        box-shadow: var(--shadow-lg);
        z-index: 1000;
        animation: slideIn 0.3s ease;
        display: flex;
        align-items: center;
        gap: 10px;
    }

    @keyframes slideIn {
        from { transform: translateX(100%); opacity: 0; }
        to { transform: translateX(0); opacity: 1; }
    }

    /* Responsive Design */
    @media (max-width: 1024px) {
        .form-row {
            grid-template-columns: repeat(2, 1fr);
        }
        
        .registration-content {
            padding: 30px;
        }
        
        .checkbox-grid {
            grid-template-columns: repeat(2, 1fr);
        }
    }

    @media (max-width: 768px) {
        .registration-section {
            padding: 80px 15px 40px;
        }
        
        .registration-header {
            padding: 25px 30px;
        }
        
        .registration-header h1 {
            font-size: 1.8rem;
        }
        
        .form-row {
            grid-template-columns: 1fr;
            gap: 20px;
        }
        
        .progress-steps {
            gap: 10px;
        }
        
        .step-label {
            font-size: 0.8rem;
        }
    }

    @media (max-width: 576px) {
        .registration-content {
            padding: 25px 20px;
        }
        
        .registration-header {
            padding: 20px;
        }
        
        .registration-header h1 {
            font-size: 1.6rem;
        }
        
        .section-title {
            font-size: 1.3rem;
        }
        
        .form-navigation {
            flex-direction: column;
            gap: 15px;
        }
        
        .form-nav-btn {
            width: 100%;
            justify-content: center;
        }
        
        .checkbox-grid {
            grid-template-columns: 1fr;
        }
    }

    @media (max-width: 400px) {
        .registration-section {
            padding: 70px 12px 30px;
        }
        
        .registration-content {
            padding: 20px 15px;
        }
        
        .registration-header h1 {
            font-size: 1.4rem;
        }
        
        .section-title {
            font-size: 1.2rem;
        }
    }

    .submit-wrapper {
        text-align: center;
        padding: 40px 20px;
    }

    .submit-wrapper .icon {
        font-size: 4rem;
        color: var(--accent-emerald);
        margin-bottom: 1rem;
    }

    .submit-wrapper h4 {
        color: var(--text-dark);
        margin-bottom: 1rem;
    }

    .submit-wrapper p {
        color: var(--text-light);
        max-width: 600px;
        margin: 0 auto 1.5rem;
    }

    /* Checkbox alignment */
    .submit-wrapper .terms {
        display: flex;
        justify-content: center;
        align-items: center;
        gap: 10px;
    }

    .submit-wrapper .terms input[type="checkbox"] {
        margin: 0;
        transform: scale(1.1);
    }

    .submit-wrapper .terms label {
        margin: 0;
        color: var(--text-dark);
    }

    .submit-wrapper .terms a {
        color: var(--primary-blue);
        text-decoration: none;
    }

    .submit-wrapper .terms a:hover {
        text-decoration: underline;
    }