.auth-container {
        min-height: calc(100vh - 200px);
        display: flex;
        align-items: center;
        justify-content: center;
        margin: -1.5rem -1rem;
        padding: 2rem;
    }

    .auth-card {
        background: white;
        border-radius: 20px;
        box-shadow: 0 20px 60px rgba(0,0,0,0.3);
        width: 100%;
        max-width: 500px;
        padding: 2.5rem;
        animation: slideUp 0.5s ease;
    }

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

    .auth-header {
        text-align: center;
        margin-bottom: 2rem;
    }

    .auth-header h1 {
        color: #333;
        font-size: 2rem;
        font-weight: 600;
        margin-bottom: 0.5rem;
    }

    .auth-header .subtitle {
        color: #666;
        font-size: 0.95rem;
    }

    .error-message {
        background: #fef2f2;
        border: 1px solid #fee2e2;
        border-radius: 12px;
        padding: 1rem;
        margin-bottom: 1.5rem;
        color: #dc2626;
        font-size: 0.95rem;
        display: flex;
        align-items: center;
        gap: 0.5rem;
    }

    .error-message i {
        font-size: 1.2rem;
    }

    .success-message {
        background: #f0fdf4;
        border: 1px solid #dcfce7;
        border-radius: 12px;
        padding: 1rem;
        margin-bottom: 1.5rem;
        color: #16a34a;
        font-size: 0.95rem;
        display: flex;
        align-items: center;
        gap: 0.5rem;
    }

    .form-group {
        margin-bottom: 1.5rem;
    }

    .form-group label {
        display: block;
        margin-bottom: 0.5rem;
        color: #374151;
        font-weight: 500;
        font-size: 0.95rem;
    }

    .form-group input {
        width: 100%;
        padding: 0.875rem 1rem;
        border: 2px solid #e5e7eb;
        border-radius: 12px;
        font-size: 1rem;
        transition: all 0.3s ease;
        background: #f9fafb;
    }

    .form-group input:focus {
        outline: none;
        border-color: #667eea;
        background: white;
        box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
    }

    .form-group input::placeholder {
        color: #9ca3af;
    }

    .form-group input.error {
        border-color: #dc2626;
        background: #fef2f2;
    }

    .password-field {
        position: relative;
    }

    .toggle-password {
        position: absolute;
        right: 1rem;
        top: 50%;
        transform: translateY(-50%);
        cursor: pointer;
        color: #9ca3af;
        transition: color 0.3s ease;
    }

    .toggle-password:hover {
        color: #667eea;
    }

    .help-text {
        font-size: 0.8rem;
        color: #6b7280;
        margin-top: 0.5rem;
        display: flex;
        align-items: center;
        gap: 0.25rem;
    }

    .help-text i {
        font-size: 0.75rem;
        color: #9ca3af;
    }

    .help-text ul {
        margin: 0.25rem 0 0 1.5rem;
        padding: 0;
    }

    .help-text li {
        margin-bottom: 0.25rem;
    }

    .field-errors {
        margin-top: 0.5rem;
        padding: 0.5rem;
        background: #fef2f2;
        border-radius: 8px;
        border-left: 3px solid #dc2626;
    }

    .field-errors ul {
        margin: 0;
        padding-left: 1.5rem;
        color: #dc2626;
        font-size: 0.85rem;
    }

    .field-errors li {
        margin-bottom: 0.25rem;
    }

    .password-requirements {
        background: #f3f4f6;
        border-radius: 12px;
        padding: 1rem;
        margin-bottom: 1.5rem;
    }

    .password-requirements h4 {
        color: #374151;
        font-size: 0.95rem;
        font-weight: 600;
        margin-bottom: 0.75rem;
        display: flex;
        align-items: center;
        gap: 0.5rem;
    }

    .requirement-item {
        display: flex;
        align-items: center;
        gap: 0.5rem;
        color: #6b7280;
        font-size: 0.9rem;
        margin-bottom: 0.5rem;
    }

    .requirement-item i {
        width: 16px;
        color: #9ca3af;
    }

    .requirement-item.valid {
        color: #16a34a;
    }

    .requirement-item.valid i {
        color: #16a34a;
    }

    .btn-register {
        width: 100%;
        padding: 1rem;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        border: none;
        border-radius: 12px;
        color: white;
        font-size: 1.1rem;
        font-weight: 600;
        cursor: pointer;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        margin-bottom: 1.5rem;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 0.5rem;
    }

    .btn-register:hover {
        transform: translateY(-2px);
        box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
    }

    .btn-register:active {
        transform: translateY(0);
    }

    .login-link {
        text-align: center;
        border-top: 2px solid #f3f4f6;
        padding-top: 1.5rem;
    }

    .login-link p {
        color: #6b7280;
        margin-bottom: 0.5rem;
    }

    .login-link a {
        color: #667eea;
        text-decoration: none;
        font-weight: 600;
        font-size: 1.1rem;
        transition: color 0.3s ease;
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
    }

    .login-link a:hover {
        color: #764ba2;
    }

    .terms-text {
        text-align: center;
        font-size: 0.8rem;
        color: #9ca3af;
        margin-top: 1rem;
    }

    .terms-text a {
        color: #667eea;
        text-decoration: none;
    }

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

    .non-field-errors {
        background: #fef2f2;
        border: 1px solid #fee2e2;
        border-radius: 12px;
        padding: 1rem;
        margin-bottom: 1.5rem;
        color: #dc2626;
    }

    .non-field-errors ul {
        margin: 0;
        padding-left: 1.5rem;
    }