body {
    background-color: #0a0a0a;
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    padding: 20px;
    box-sizing: border-box;
}

.toast-error {
    position: fixed;
    top: 20px;
    right: 20px;
    background-color: #ff4d4f;
    color: white;
    padding: 15px 20px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(255, 77, 79, 0.4);
    z-index: 9999;
    font-weight: bold;
    animation: fadeIn 0.5s ease;
    max-width: calc(100vw - 40px);
    word-wrap: break-word;
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-box {
    background-color: #111;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 0 15px rgba(255,107,53,0.2);
    width: 100%;
    max-width: 400px;
    box-sizing: border-box;
}

    .login-box h2 {
        margin-bottom: 25px;
        color: #ff6b35;
        text-align: center;
        font-size: 24px;
    }

    .login-box input {
        width: 100%;
        padding: 12px;
        margin-bottom: 20px;
        border: none;
        border-radius: 5px;
        font-size: 16px;
        box-sizing: border-box;
    }

.login-btn {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, #ff6b35, #ff8c42);
    color: white;
    border: none;
    border-radius: 5px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 16px;
}

    .login-btn:hover {
        transform: translateY(-2px);
        background: linear-gradient(135deg, #ff8c42, #ffaa5a);
    }

/* Tablet görünümü (768px - 1024px) */
@media (max-width: 1024px) and (min-width: 769px) {
    .login-box {
        max-width: 500px;
        padding: 50px;
    }

        .login-box h2 {
            font-size: 28px;
            margin-bottom: 30px;
        }

        .login-box input {
            padding: 15px;
            font-size: 18px;
            margin-bottom: 25px;
        }

    .login-btn {
        padding: 15px;
        font-size: 18px;
    }
}

/* Mobil görünümü (768px ve altı) */
@media (max-width: 768px) {
    body {
        padding: 15px;
    }

    .login-box {
        max-width: 100%;
        min-width: 350px; 
        padding: 60px 40px; 
        min-height: 400px; 
    }

        .login-box h2 {
            font-size: 28px; 
            margin-bottom: 40px; 
        }

        .login-box input {
            padding: 22px; 
            font-size: 18px; 
            margin-bottom: 30px; 
        }

    .login-btn {
        padding: 22px; 
        font-size: 18px; 
        margin-top: 10px; 
    }

    .toast-error {
        top: 15px;
        right: 15px;
        left: 15px;
        padding: 12px 15px;
        font-size: 14px;
    }
}

/* Küçük mobil görünümü (480px ve altı) */
@media (max-width: 480px) {
    body {
        padding: 10px;
    }

    .login-box {
        padding: 50px 30px; 
        min-width: 320px; 
        min-height: 380px; 
    }

        .login-box h2 {
            font-size: 26px; 
            margin-bottom: 35px; 
        }

        .login-box input {
            padding: 20px; 
            font-size: 17px; 
            margin-bottom: 25px; 
        }

    .login-btn {
        padding: 20px; 
        font-size: 17px; 
    }
}

/* Çok küçük ekranlar için (360px ve altı) */
@media (max-width: 360px) {
    .login-box {
        min-width: 280px; 
        padding: 30px 20px; 
    }

        .login-box h2 {
            font-size: 22px;
        }
}