:root {
    --primary-color: #0056b3;
    /* Guven veren mavi */
    --primary-dark: #004494;
    --secondary-color: #f8f9fa;
    /* Acik Gri - Yeni Tasarim Rengi */
    --secondary-text: #4a4a4a;
    /* Yazi icin koyu gri */
    --accent-color: #ffa500;
    --text-color: #555555;
    --light-bg: #ffffff;
    /* Beyaz agirlikli */
    --dark-bg: #e9ecef;
    /* Hafif gri alanlar icin */
    --white: #ffffff;
    --border-color: #dee2e6;
    --shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    /* Daha hafif golge */
    --transition: all 0.3s ease;
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

/* Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.text-center {
    text-align: center;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 5px;
    font-weight: 500;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
}

.btn-secondary {
    background-color: var(--accent-color);
    color: var(--white);
}

.section-padding {
    padding: 60px 0;
}

.section-title {
    font-size: 2rem;
    color: var(--primary-dark);
    margin-bottom: 40px;
    text-align: center;
    position: relative;
    padding-bottom: 15px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--primary-color);
}

/* Header */
header {
    background-color: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.top-bar {
    background-color: var(--secondary-color);
    color: var(--secondary-text);
    padding: 10px 0;
    font-size: 0.9rem;
    border-bottom: 1px solid var(--border-color);
}

.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    width: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}





.nav-menu {
    display: flex;
    gap: 25px;
    align-items: center;
}

.nav-link {
    font-weight: 500;
    color: var(--secondary-text);
    padding: 10px 0;
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color);
}

/* Dropdown Menu */
.dropdown {
    position: relative;
}

.dropdown-content {
    display: none;
    position: absolute;
    background-color: var(--white);
    min-width: 200px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
    z-index: 1001;
    border-top: 3px solid var(--primary-color);
    border-radius: 0 0 5px 5px;
    top: 100%;
    left: 0;
}

.dropdown:hover .dropdown-content {
    display: block;
}

.dropdown-content a {
    color: var(--secondary-text);
    padding: 12px 16px;
    text-decoration: none;
    display: block;
    font-size: 0.9rem;
    border-bottom: 1px solid var(--border-color);
}

.dropdown-content a:last-child {
    border-bottom: none;
}

.dropdown-content a:hover {
    background-color: var(--secondary-color);
    color: var(--primary-color);
}

/* Scrollable Dropdown for many brands */
.brands-dropdown {
    min-width: 600px;
    /* Genis menu */
    display: none;
    grid-template-columns: repeat(3, 1fr);
    /* 3 kolon */
    padding: 15px;
    max-height: 400px;
    overflow-y: auto;
}

.dropdown:hover .brands-dropdown {
    display: grid;
}


.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--secondary-text);
}

/* Hero Section */
.hero {
    background-image: linear-gradient(rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.7)), url('https://images.unsplash.com/photo-1581092921461-eab62e97a783?ixlib=rb-1.2.1&auto=format&fit=crop&w=1350&q=80');
    background-size: cover;
    background-position: center;
    color: var(--secondary-text);
    padding: 120px 0;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    color: var(--primary-dark);
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 500;
}

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.service-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    display: block;
}

.service-card h3 {
    margin-bottom: 15px;
    color: var(--primary-dark);
}

/* Footer */
footer {
    background-color: #f1f3f5;
    /* Cok acik gri */
    color: var(--secondary-text);
    padding: 60px 0 20px;
    border-top: 1px solid var(--border-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h4 {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a:hover {
    color: var(--primary-color);
    padding-left: 5px;
}

.copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    font-size: 0.9rem;
    color: #888;
}

/* Floating Buttons */
.floating-buttons {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    z-index: 999;
}

.float-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 30px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.whatsapp-float {
    background-color: #25d366;
}

.phone-float {
    background-color: var(--primary-color);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-container {
        padding: 15px 0;
    }

    .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--white);
        padding: 0;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        border-top: 1px solid #eee;
        max-height: 80vh;
        overflow-y: auto;
    }

    .nav-menu.active {
        display: flex;
        gap: 0;
    }

    .nav-link {
        padding: 15px 20px;
        width: 100%;
        display: block;
        border-bottom: 1px solid #f1f1f1;
    }

    .nav-link:hover {
        background-color: #f9f9f9;
        color: var(--primary-color);
    }

    /* Mobile Dropdown Logic */
    .dropdown-content {
        position: static;
        box-shadow: none;
        border: none;
        background-color: #f8f9fa;
        display: none;
        width: 100%;
        padding-left: 15px;
    }

    .dropdown.active .dropdown-content {
        display: block;
    }

    .brands-dropdown {
        display: none;
        grid-template-columns: 1fr;
        /* Single column for brands in mobile */
        min-width: auto;
        max-height: none;
        padding: 0;
    }

    .dropdown.active .brands-dropdown {
        display: grid;
        /* Grid layout for brands */
    }

    .mobile-menu-btn {
        display: block;
        font-size: 1.8rem;
        color: var(--primary-color);
        padding: 5px;
        border: 2px solid #eee;
        border-radius: 5px;
        width: 45px;
        height: 45px;
        text-align: center;
        line-height: 30px;
        margin-left: auto;
        /* Force right alignment */
    }

    .logo img {
        max-height: 40px !important;
        /* Force smaller logo on mobile */
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .desktop-only {
        display: none;
    }
}