* {
    box-sizing: border-box;
}

body {
    margin: 0;
    height: 100vh;
    font-family: "Segoe UI", Arial, sans-serif;
    background: linear-gradient(
        120deg,
        var(--bg-dark),
        var(--brown-dark),
        var(--brown),
        var(--orange)
    );
    background-size: 400% 400%;
    animation: bgMove 15s ease infinite;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    overflow: hidden;
}

@keyframes bgMove {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Login kutusu */
.login-box {
    background: rgba(12, 12, 12, 0.75);
    backdrop-filter: blur(12px);
    padding: 36px 30px;
    width: 320px;
    border-radius: var(--radius);
    box-shadow: 0 20px 40px rgba(0,0,0,0.6);
    animation: fadeIn 0.8s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-box h3 {
    text-align: center;
    margin-bottom: 24px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

/* Inputlar */
.login-box input {
    width: 100%;
    padding: 12px 14px;
    margin-bottom: 14px;
    background: var(--input-bg);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius);
    color: var(--text-light);
    font-size: 14px;
    outline: none;
    transition: var(--transition);
}

.login-box input::placeholder {
    color: var(--text-muted);
}

.login-box input:focus {
    border-color: var(--orange);
    box-shadow: 0 0 0 2px rgba(244,104,60,0.25);
}

/* Buton */
.login-box button {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, var(--brown), var(--orange));
    border: none;
    border-radius: var(--radius);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.login-box button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(244,104,60,0.45);
}

.login-logo {
    text-align: center;
    margin-bottom: 10px;
}

.login-logo img {
    width: 150px;
    max-width: 100%;
    filter: drop-shadow(0 6px 12px rgba(0,0,0,0.6));
}

/* Hata mesaj覺 */
.error {
    margin-top: 15px;
    text-align: center;
    color: #ffb4a2;
    font-size: 14px;
    animation: shake 0.4s ease;
}

@keyframes shake {
    0% { transform: translateX(0); }
    25% { transform: translateX(-4px); }
    50% { transform: translateX(4px); }
    75% { transform: translateX(-4px); }
    100% { transform: translateX(0); }
}


@media (max-width: 768px) {

    body {
        height: auto;
        min-height: 100vh;
        padding: 0;
        align-items: center;
        justify-content: center;
        overflow: auto;
    }

    .login-box {
        width: 94vw;          /* 🔴 ASIL ÇÖZÜM BU */
        max-width: 600px;
        padding: 32px 24px;
    }

    .login-logo img {
        width: 110px;
    }

    .login-box h3 {
        font-size: 19px;
        margin-bottom: 20px;
    }

    .login-box input {
        font-size: 16px;
        padding: 14px;
    }

    .login-box button {
        font-size: 16px;
        padding: 14px;
    }
}

/* Küçük telefonlar */
@media (max-width: 420px) {

    .login-box {
        width: 94vw;
        padding: 28px 20px;
    }

    .login-logo img {
        width: 95px;
    }
}