/* ======================================
   HEADER & NAVBAR CSS - OPTİMİZE EDİLMİŞ
   ====================================== */

/* Genel Renk Değişkenleri */
:root {
    --primary-color: #e60023;
    --secondary-color: #2c3e50;
    --accent-color: #f39c12;
    --light-grey: #f4f4f4;
    --dark-grey: #34495e;
}

/* ======================================
   NAVBAR
   ====================================== */

.navbar {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 15px 0;
    transition: all 0.3s ease;
}

/* Logo */
.navbar-brand .logo {
    max-height: 50px;
    width: auto;
}

/* Nav Links */
.navbar-nav .nav-link {
    color: var(--secondary-color) !important;
    font-weight: 600;
    padding: 8px 16px !important;
    transition: all 0.3s ease;
    position: relative;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--primary-color) !important;
}

/* Alt Çizgi Animasyonu */
.navbar-nav .nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.4s ease-in-out, left 0.4s ease-in-out;
}

.navbar-nav .nav-link:hover::before {
    width: 100%;
    left: 0;
}

/* ======================================
   DROPDOWN - HOVER ÖZELLİĞİ
   ====================================== */

.dropdown:hover .dropdown-menu {
    display: block;
    margin-top: 0;
}

.dropdown-menu {
    margin-top: 0;
    border: none;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    border-radius: 0 0 10px 10px;
}

/* ======================================
   MEGA MENU
   ====================================== */

.mega-menu {
    width: 100vw;
    left: 50% !important;
    transform: translateX(-50%);
    padding: 30px 0;
    background: white;
    border-radius: 0;
    border: none;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

/* Machine Preview Cards */
.machine-preview {
    text-align: center;
    padding: 15px;
    border: 1px solid #eee;
    border-radius: 10px;
    transition: all 0.3s ease;
    cursor: pointer;
    text-decoration: none;
    display: block;
    color: inherit;
}

.machine-preview:hover {
    background: #f8f9fa;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transform: translateY(-5px);
    text-decoration: none;
    color: inherit;
}

.machine-preview img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 10px;
}

.machine-info h5 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.machine-info p {
    font-size: 0.8rem;
    color: #666;
    margin: 0;
}

/* ======================================
   RESPONSIVE
   ====================================== */

@media (max-width: 991px) {
    /* Mobilde hover iptal, tıklama ile açılır */
    .dropdown:hover .dropdown-menu {
        display: none;
    }
    
    .navbar-collapse {
        background-color: #fff;
        padding: 15px;
        border-top: 1px solid #eee;
    }

    .navbar-nav .nav-link {
        padding: 10px 15px !important;
        text-align: center;
    }

    /* Alt çizgi animasyonunu mobilde kapat */
    .navbar-nav .nav-link::before {
        display: none;
    }

    .mega-menu {
        position: static;
        width: 100%;
        left: 0 !important;
        transform: none;
        padding: 15px;
        box-shadow: none;
    }

    .machine-preview {
        margin-bottom: 15px;
    }
    
    .machine-preview img {
        height: 120px;
    }
}

@media (max-width: 575px) {
    .navbar-brand .logo {
        max-height: 40px;
    }
    
    .machine-preview img {
        height: 100px;
    }
    
    .machine-info h5 {
        font-size: 0.85rem;
    }
    
    .machine-info p {
        font-size: 0.75rem;
    }
}