/* Auth and User Controls */
.auth-container {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding: 10px;
    gap: 10px;
    flex-wrap: wrap;
}

.auth-btn {
    text-decoration: none;
    color: black;
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    background-color: white;
    transition: all 0.3s ease;
}

    .auth-btn:hover {
        background-color: #f5f5f5;
        box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    }

.logout-btn-container, .admin-btn-container {
    display: flex;
    align-items: center;
}

.logout-btn, .admin-btn {
    height: 30px;
    width: 30px;
    border-radius: 50%;
    transition: transform .3s ease;
}

    .logout-btn:hover, .admin-btn:hover {
        transform: scale(1.1);
    }

.user-greeting {
    font-weight: bold;
    color: #d32f2f;
}

/* Category Navigation */
.category-nav {
    display: flex;
    justify-content: center;
    gap: 5px;
    padding: 10px 0;
    background-color: white;
    border-bottom: 1px solid #eee;
    flex-wrap: wrap;
}

.category-btn {
    padding: 8px 12px;
    text-decoration: none;
    color: #333;
    border: 1px solid #e4e2e2;
    border-radius: 4px;
    background-color: white;
    transition: all 0.3s ease;
}

    .category-btn:hover, .category-btn.active {
        background-color: #f0f0f0;
        box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    }

    .category-btn.active {
        color: #8b0000;
        font-weight: bold;
        border-color: #8b0000;
    }

/* Science Section (genel kap) */
.science-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* === SADECE HİZALAMA DÜZELTMELERİ (boyutlara dokunmadan) === */

/* Bu sayfadaki 3. sütun (#ucuncu) Bootstrap float'ını iptal edip tam genişlikte ortala */
#ucuncu.col-md-4 {
    float: none !important;
}

#ucuncu {
    width: 100% !important;
    max-width: 1200px;
    margin: 0 auto 24px auto; /* ortala */
    padding-left: 0;
    padding-right: 0;
    display: flex;
    flex-direction: column;
    align-items: center; /* içindekileri merkezle */
}

    /* İçteki science-container'ı da orta hizada tut */
    #ucuncu > .science-container {
        width: 100%;
        margin: 0 auto;
        padding-left: 10px;
        padding-right: 10px;
        display: flex;
        flex-direction: column;
        align-items: center;
    }

/* Main Science Slider – BOYUTLARA DOKUNMADAN yalnızca ortalama */
.main-science-slider {
    width: 100%;
    max-width: 800px; /* mevcut */
    height: 400px; /* mevcut */
    margin: 0 auto; /* ortala */
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.science-slide-image {
    width: 100%;
    height: 100%;
    object-fit: contain; /* mevcut */
    transition: transform .5s ease;
}

    .science-slide-image:hover {
        transform: scale(1.02);
    }

/* Swiper okları aynı kalsın */
.swiper-button-prev, .swiper-button-next {
    color: white;
    background-color: rgba(139,0,0,.7);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    transition: all .3s ease;
}

    .swiper-button-prev:hover, .swiper-button-next:hover {
        background-color: rgba(139,0,0,.9);
    }

    .swiper-button-prev::after, .swiper-button-next::after {
        font-size: 1.2rem;
    }

/* Science Thumbnails – BOYUTLAR DEĞİŞMEDEN ortala */
.science-thumbnails {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin: 20px auto;
    max-width: 800px; /* mevcut */
    padding: 15px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}
    /* Her satırı ortala */
    .science-thumbnails .scrow {
        width: 100%;
        display: flex;
        justify-content: center;
        gap: 10px;
    }

.thumbnail {
    width: 100px; /* mevcut */
    height: 120px; /* mevcut */
    cursor: pointer;
    transition: all .3s ease;
    border: 2px solid transparent;
    border-radius: 4px;
    overflow: hidden;
}

    .thumbnail:hover, .active-thumbnail {
        border-color: #8b0000;
        transform: translateY(-5px);
    }

.thumbnail-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* More Science Button */
.more-science {
    text-align: center;
    margin: 30px 0;
}

.btn-more {
    display: inline-block;
    padding: 10px 20px;
    background-color: #8b0000;
    color: white;
    text-decoration: none;
    border-radius: 4px;
    transition: all .3s ease;
}

    .btn-more:hover {
        background-color: #6b0000;
        box-shadow: 0 2px 10px rgba(139,0,0,.3);
    }

/* Hobbies Section */
.hobbies-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px 30px;
}

.hobby-categories {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}

.hobby-category {
    padding: 8px 16px;
    background-color: #2ba11c;
    color: white;
    text-decoration: none;
    border-radius: 20px;
    transition: all .3s ease;
}

    .hobby-category:hover {
        background-color: #218618;
        box-shadow: 0 2px 8px rgba(43,161,28,.3);
    }

/* Culture Section */
.culture-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.culture-columns {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
}

.culture-column {
    flex: 1;
    min-width: 300px;
    max-width: 400px;
    padding: 20px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,.05);
}

    .culture-column h3 {
        color: #8b0000;
        margin-bottom: 15px;
    }

    .culture-column p {
        color: #555;
        margin-bottom: 15px;
        line-height: 1.6;
    }

.culture-links {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

    .culture-links a {
        padding: 6px 12px;
        background-color: #f5f5f5;
        border-radius: 4px;
        text-decoration: none;
        color: #333;
        transition: all .3s ease;
    }

        .culture-links a:hover {
            background-color: #8b0000;
            color: white;
        }

/* Responsive */
@media (max-width: 768px) {
    .main-science-slider {
        height: 300px;
    }
    /* mevcut değer */
    .thumbnail {
        width: 80px;
        height: 100px;
    }

    .auth-container {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .main-science-slider {
        height: 250px;
    }
    /* mevcut değer */
    .thumbnail {
        width: 70px;
        height: 90px;
    }

    .category-nav {
        gap: 5px;
    }

    .category-btn {
        padding: 6px 10px;
        font-size: .9rem;
    }
}