:root {
    --primary-blue: #48a5db; /* Turkuaz / Açık Mavi */
    --dark-blue: #2d6f8f; /* Koyu Mavi */
    --accent-green: #8ec63f; /* Yeşil */
    --bg-light: #f8f9fa;
    --text-dark: #333333;
}

body {
    font-family: 'Inter', 'Roboto', sans-serif;
    color: var(--text-dark);
    background-color: var(--bg-light);
}

/* Navbar */
.navbar-custom {
    background-color: #ffffff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}
.navbar-custom .navbar-brand img {
    height: 50px;
}
.navbar-custom .nav-link {
    color: var(--dark-blue);
    font-weight: 500;
    padding: 10px 15px !important;
    transition: color 0.3s ease;
}
.navbar-custom .nav-link:hover {
    color: var(--primary-blue);
}

/* Topbar */
.topbar {
    background-color: var(--dark-blue);
    color: #ffffff;
    padding: 5px 0;
    font-size: 0.9rem;
}
.topbar a {
    color: #ffffff;
    text-decoration: none;
    margin-left: 15px;
}
.topbar a:hover {
    color: var(--accent-green);
}

/* Buttons */
.btn-primary-custom {
    background-color: var(--primary-blue);
    border-color: var(--primary-blue);
    color: #fff;
}
.btn-primary-custom:hover {
    background-color: var(--dark-blue);
    border-color: var(--dark-blue);
    color: #fff;
}
.btn-accent-custom {
    background-color: var(--accent-green);
    border-color: var(--accent-green);
    color: #fff;
}
.btn-accent-custom:hover {
    background-color: #7ab32d;
    border-color: #7ab32d;
    color: #fff;
}

/* Footer */
footer {
    background-color: var(--dark-blue);
    color: #ffffff;
    padding: 40px 0 20px;
    margin-top: 50px;
}
footer a {
    color: #b0d4e8;
    text-decoration: none;
}
footer a:hover {
    color: var(--accent-green);
}

/* Product Card */
.product-card {
    background: #fff;
    border: none;
    border-radius: 8px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    overflow: hidden;
}
.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}
.product-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}
.product-price {
    color: var(--primary-blue);
    font-size: 1.25rem;
    font-weight: 700;
}

/* Carousel */
.hero-carousel .carousel-item {
    height: 400px;
    background-color: var(--dark-blue);
    color: white;
}
.hero-carousel .carousel-caption {
    bottom: 20%;
    background: rgba(45, 111, 143, 0.8);
    padding: 20px;
    border-radius: 10px;
}

/* Thumbnails */
.product-thumbnails img {
    cursor: pointer;
    border: 2px solid transparent;
    border-radius: 4px;
    transition: border 0.3s ease;
}
.product-thumbnails img:hover, .product-thumbnails img.active {
    border-color: var(--primary-blue);
}