.signin {
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 60px;
        }

        .signin-container {
            background: white;
            border-radius: 12px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
            padding: 40px;
            width: 100%;
            max-width: 500px;
            position: relative;
            overflow: hidden;
        }

        .signin-container::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
        }

        .logo-section {
            text-align: center;
            margin-bottom: 30px;
        }

        .subtitle {
            color: #666;
            font-size: 14px;
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-label {
            display: block;
            margin-bottom: 8px;
            color: #333;
            font-weight: 500;
            font-size: 14px;
        }

        .form-input {
            width: 100%;
            padding: 14px 16px;
            border: 2px solid #e1e5e9;
            border-radius: 8px;
            font-size: 16px;
            transition: all 0.3s ease;
            background: #fff;
        }

        .form-input:focus {
            outline: none;
            border-color: #f5c842;
            box-shadow: 0 0 0 3px rgba(245, 200, 66, 0.1);
        }

        .form-input::placeholder {
            color: #999;
        }

        .password-group {
            position: relative;
        }

        .forgot-password {
            text-align: right;
            margin-top: 8px;
        }

        .forgot-password a {
            color: #f5c842;
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
        }

        .forgot-password a:hover {
            text-decoration: underline;
        }

        .signin-btn {
            width: 100%;
            background: linear-gradient(135deg, #f5c842 0%, #f7d560 100%);
            color: white;
            border: none;
            padding: 16px;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-top: 10px;
        }

        .signin-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(245, 200, 66, 0.3);
        }

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

        .divider {
            text-align: center;
            margin: 30px 0;
            position: relative;
            color: #999;
            font-size: 14px;
        }

        .divider::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 0;
            right: 0;
            height: 1px;
            background: #e1e5e9;
            z-index: 1;
        }

        .divider span {
            background: white;
            padding: 0 15px;
            position: relative;
            z-index: 2;
        }

        .signup-link {
            text-align: center;
            color: #666;
            font-size: 14px;
        }

        .signup-link a {
            color: #f5c842;
            text-decoration: none;
            font-weight: 600;
        }

        .signup-link a:hover {
            text-decoration: underline;
        }

        .remember-me {
            display: flex;
            align-items: center;
            margin-bottom: 20px;
        }

        .remember-me input[type="checkbox"] {
            margin-right: 8px;
            accent-color: #f5c842;
        }

        .remember-me label {
            color: #666;
            font-size: 14px;
            cursor: pointer;
        }

        .social-buttons {
    display: flex;
    gap: 15px;
    margin-bottom: 30px;
}

.social-btn {
    flex: 1;
    padding: 14px;
    border: 2px solid #e1e5e9;
    border-radius: 12px;
    background: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-weight: 500;
    color: #555;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-btn:hover {
    border-color: #ccc;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}
.google-icon, .apple-icon {
    width: 20px;
    height: 20px;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
}

.google-icon {
    background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="%234285F4" d="M22.56 12.25c0-.78-.07-1.53-.2-2.25H12v4.26h5.92c-.26 1.37-1.04 2.53-2.21 3.31v2.77h3.57c2.08-1.92 3.28-4.74 3.28-8.09z"/><path fill="%2334A853" d="M12 23c2.97 0 5.46-.98 7.28-2.66l-3.57-2.77c-.98.66-2.23 1.06-3.71 1.06-2.86 0-5.29-1.93-6.16-4.53H2.18v2.84C3.99 20.53 7.7 23 12 23z"/><path fill="%23FBBC05" d="M5.84 14.09c-.22-.66-.35-1.36-.35-2.09s.13-1.43.35-2.09V7.07H2.18C1.43 8.55 1 10.22 1 12s.43 3.45 1.18 4.93l2.85-2.22.81-.62z"/><path fill="%23EA4335" d="M12 5.38c1.62 0 3.06.56 4.21 1.64l3.15-3.15C17.45 2.09 14.97 1 12 1 7.7 1 3.99 3.47 2.18 7.07l3.66 2.84c.87-2.6 3.3-4.53 6.16-4.53z"/></svg>');
}

.apple-icon {
    background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="%23000" d="M18.71 19.5c-.83 1.24-1.71 2.45-3.05 2.47-1.34.03-1.77-.79-3.29-.79-1.53 0-2 .77-3.27.82-1.31.05-2.3-1.32-3.14-2.53C4.25 17 2.94 12.45 4.7 9.39c.87-1.52 2.43-2.48 4.12-2.51 1.28-.02 2.5.87 3.29.87.78 0 2.26-1.07 3.81-.91.65.03 2.47.26 3.64 1.98-.09.06-2.17 1.28-2.15 3.81.03 3.02 2.65 4.03 2.68 4.04-.03.07-.42 1.44-1.38 2.83M13 3.5c.73-.83 1.94-1.46 2.94-1.5.13 1.17-.34 2.35-1.04 3.19-.69.85-1.83 1.51-2.95 1.42-.15-1.15.41-2.35 1.05-3.11z"/></svg>');
}

        @media (max-width: 480px) {
            .signin-container {
                padding: 30px 20px;
            }
            
            .logo {
                font-size: 24px;
            }
        }
            .social-buttons {
        flex-direction: column;
    }

        /* Loading animation */
        .signin-btn.loading {
            position: relative;
            color: transparent;
        }

        .signin-btn.loading::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 20px;
            height: 20px;
            margin: -10px 0 0 -10px;
            border: 2px solid transparent;
            border-top: 2px solid white;
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }