/* === GOOGLE FONTS & TASARIM DEĞİŞKENLERİ === */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&display=swap');

:root {
    --primary-color: #f39c12;
    --primary-hover-color: #e68a00;
    --dark-bg-primary: #111827;      /* Ana Koyu Arka Plan */
    --dark-bg-secondary: #1F2937;    /* Kartlar ve Yüzeyler için */
    --text-primary: #F9FAFB;        /* Ana Başlık ve Metin Rengi */
    --text-secondary: #D1D5DB;      /* Paragraf ve Açıklama Metinleri */
    --text-muted: #6B7280;          /* Daha Az Önemli Metinler */
    --border-color: #374151;
    --white: #ffffff;
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.2), 0 8px 10px -6px rgba(0, 0, 0, 0.2);
    --transition-speed: 0.3s;
}

/* === GENEL AYARLAR VE SIFIRLAMALAR === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.7;
    color: var(--text-secondary);
    background-color: var(--dark-bg-primary);
    overflow-x: hidden;
}
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
}
h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    font-weight: 700;
}
a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-speed) ease;
}
a:hover {
    color: var(--primary-hover-color);
}
section {
    padding: 100px 0;
    position: relative;
}
.section-title {
    text-align: center;
    margin-bottom: 60px;
}
.section-title span {
    color: var(--primary-color);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    display: block;
    margin-bottom: 10px;
    font-size: 0.9em;
}
.section-title h2 {
    font-size: clamp(2.5em, 5vw, 3.5em);
    font-weight: 800;
}

/* === BUTON STİLLERİ === */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all var(--transition-speed) ease;
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 0.9em;
}
.btn-primary {
    background-color: var(--primary-color);
    color: var(--dark-bg-primary);
    border-color: var(--primary-color);
}
.btn-primary:hover {
    background-color: var(--primary-hover-color);
    border-color: var(--primary-hover-color);
    color: var(--dark-bg-primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}
.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}
.btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--dark-bg-primary);
    transform: translateY(-3px);
}


/* === HEADER === */
.site-header {
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.header-main {
    padding: 15px 0;
    background-color: var(--white);
    border-bottom: 1px solid #e0e0e0;
}

.header-main .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 25px;
}
.header-main .logo img {
    height: 100px;
    flex-shrink: 0;
}
.search-container {
    flex-grow: 1;
    max-width: 550px;
}
.search-container form {
    position: relative;
}
.search-container input {
    width: 100%;
    height: 48px;
    padding: 10px 25px 10px 50px;
    background-color: #f0f2f5;
    border: 1px solid #dde1e7;
    border-radius: 50px;
    font-size: 1em;
    color: #333;
    outline: none;
    transition: border-color var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}
.search-container input::placeholder {
    color: #888;
}
.search-container input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(243, 156, 18, 0.2);
}
.search-container button {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #555;
    font-size: 1.2em;
    cursor: pointer;
    padding: 0 5px;
}
.header-social-icons-main {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-shrink: 0;
}
.header-social-icons-main a {
    color: #333;
    font-size: 1.2em;
    transition: color var(--transition-speed) ease, transform var(--transition-speed) ease;
}
.header-social-icons-main a:hover {
    color: var(--primary-color);
    transform: translateY(-2px);
}
.hamburger-menu {
    display: none;
    cursor: pointer;
    background: none;
    border: none;
    font-size: 1.8em;
    color: #333;
    z-index: 1001;
}
.main-nav {
    background-color: var(--dark-bg-secondary);
    border-top: 1px solid var(--border-color);
}
.main-nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
}
.main-nav li {
    margin: 0 5px;
}
.main-nav li a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 15px 20px;
    color: var(--text-secondary);
    font-weight: 500;
    position: relative;
    overflow: hidden;
}
.main-nav li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: -100%;
    width: 100%;
    height: 3px;
    background-color: var(--primary-color);
    transition: left var(--transition-speed) ease-in-out;
}
.main-nav li a:hover, .main-nav li a.active {
    color: var(--text-primary);
}
.main-nav li a:hover::after, .main-nav li a.active::after {
    left: 0;
}
.has-megamenu { position: relative; }
.mega-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    width: 1000px;
    max-width: 90vw;
    background: var(--dark-bg-secondary);
    box-shadow: var(--shadow-lg);
    border-radius: 8px;
    padding: 30px;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-speed) ease;
    border-top: 3px solid var(--primary-color);
}
.has-megamenu:hover .mega-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}
.mega-menu-content {
    display: flex;
    gap: 30px;
}
.mega-menu-column { flex: 1; }
.mega-menu-column h4 {
    margin-bottom: 15px;
    font-size: 1.1em;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 10px;
}
.mega-menu-column h4 a { color: var(--text-primary); }
.mega-menu-column h4 a:hover { color: var(--primary-color); }
.mega-menu-column ul {
    list-style: none;
    flex-direction: column;
}
.mega-menu-column ul li { margin: 5px 0; }
.mega-menu-column ul li a {
    padding: 5px 0;
    font-weight: 400;
    color: var(--text-secondary);
}
.mega-menu-column ul li a:hover { color: var(--primary-color); padding-left: 8px; }
.mega-menu-column ul li a::after { display:none; }
main {
    padding-top: 220px;
}

/* === HAREKETLİ BANNER (HERO) === */
@keyframes kenburns {
    0% { transform: scale(1.05) translate(0, 0); }
    50% { transform: scale(1.15) translate(-2%, 2%); }
    100% { transform: scale(1.05) translate(0, 0); }
}
.page-header-animated {
    color: var(--white);
    text-align: center;
    padding: 160px 0 100px 0;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}
.page-header-animated::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(to top, rgba(17, 24, 39, 0.9) 0%, rgba(17, 24, 39, 0.6) 100%);
    z-index: 1;
}
.background-image-animated {
    background-size: cover;
    background-position: center;
    position: absolute;
    top: -5%; left: -5%; right: -5%; bottom: -5%;
    z-index: 0;
    animation: kenburns 30s ease-in-out infinite;
    filter: saturate(0.9);
}
.page-header-animated .container { position: relative; z-index: 2; }
.page-header-animated h1 {
    font-size: clamp(2.8em, 6vw, 4.5em);
    color: var(--white);
    font-weight: 800;
}
.page-header-animated p {
    font-size: clamp(1em, 2vw, 1.2em);
    color: var(--text-secondary);
    max-width: 650px;
    margin: 15px auto 0;
}
.home-page .hero-section {
    min-height: 100vh;
    margin-top: -220px;
    padding-bottom: 100px;
}
.home-page .hero-subtitle {
    color: var(--primary-color);
    font-weight: 700;
    letter-spacing: 2px;
}
.home-page .hero-content h1 {
    margin: 10px 0 20px;
    text-shadow: 0 4px 15px rgba(0,0,0,0.5);
}
.home-page .hero-content p { margin: 0 auto 40px; }
.home-page .btn-primary i {
    margin-left: 10px;
    transition: transform var(--transition-speed) ease;
}
.home-page .btn-primary:hover i { transform: translateX(5px); }

/* === BANNER GÖRSELLERİ === */
.home-page .background-image-animated { background-image: url('img/anasayfabanner.jpg'); }
.urunler-sayfasi .background-image-animated { background-image: url('img/ürünler-arka-plan.png'); }
.yapilarimiz-sayfasi .background-image-animated { background-image: url('img/yapilarimiz/unnamed.png'); }
.hakkimizda-sayfasi .background-image-animated { background-image: url('img/hakkımızda-2.png'); }
.iletisim-sayfasi .background-image-animated { background-image: url('img/iletisim-1.png'); }

/* === ANASAYFA: HİZMETLER BÖLÜMÜ === */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}
.service-card {
    background: var(--dark-bg-secondary);
    padding: 40px;
    text-align: center;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all var(--transition-speed) ease;
    position: relative;
    overflow: hidden;
}
.service-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(243, 156, 18, 0.1), transparent 50%);
    transform: scale(0);
    transition: transform 0.8s ease;
    z-index: 0;
}
.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: 0 0 40px rgba(243, 156, 18, 0.1);
}
.service-card:hover::before {
    transform: scale(1);
}
.service-icon, .service-card h3, .service-card p {
    position: relative;
    z-index: 1;
}
.service-icon {
    font-size: 3em;
    color: var(--primary-color);
    margin-bottom: 20px;
    display: inline-block;
    transition: all var(--transition-speed) ease;
}
.service-card:hover .service-icon {
    transform: scale(1.1);
}
.service-card h3 {
    font-size: 1.5em;
    margin-bottom: 15px;
    color: var(--text-primary);
}

/* === ANASAYFA: İSTATİSTİKLER === */
.stats {
    background: linear-gradient(rgba(17, 24, 39, 0.9), rgba(17, 24, 39, 0.9)), url('img/photo-1600585152220-90363fe7e115.avif') no-repeat center center/cover;
    background-attachment: fixed;
    color: var(--white);
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    text-align: center;
    gap: 30px;
}
.stat-item h3 {
    font-size: clamp(2.5em, 6vw, 4em);
    font-weight: 800;
    color: var(--primary-color);
}
.stat-item p {
    font-size: 1.2em;
    color: var(--text-secondary);
}

/* === ANASAYFA: ÖNE ÇIKAN PROJELER === */
.featured-projects { background: var(--dark-bg-primary); }
.project-grid-home-four-items {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}
.project-card-home {
    position: relative;
    overflow: hidden;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    height: 350px;
}
.project-card-home img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.6s ease, filter 0.6s ease;
}
.project-card-home:hover img {
    transform: scale(1.1);
    filter: brightness(0.7);
}
.project-info {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(to top, rgba(0,0,0,0.9), transparent);
    color: var(--white);
    padding: 25px;
    opacity: 0;
    transition: opacity 0.5s ease;
}
.project-card-home:hover .project-info {
    opacity: 1;
}
.project-info h3 {
    color: var(--white);
    font-size: 1.6em;
}
.text-center { text-align: center; }

/* === ÜRÜNLER SAYFASI === */
.products-layout-advanced {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 40px;
}
.product-sidebar-advanced {
    position: sticky;
    top: 240px;
    align-self: flex-start;
    background: var(--dark-bg-secondary);
    padding: 25px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}
.product-sidebar-advanced h3 {
    font-size: 1.1em;
    font-weight: 700;
    color: var(--text-primary);
    padding-bottom: 15px;
    margin-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
    letter-spacing: 1px;
    text-transform: uppercase;
}
.category-filter-menu, .subcategory-list { list-style: none; }
.category-item, .category-item-single { margin-bottom: 5px; }
.category-title, .category-title-single {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: 12px 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    border-radius: 8px;
    gap: 12px;
    color: var(--text-secondary);
}

.category-title span, .category-title-single span {
    flex-grow: 1;
    text-align: left;
}

.category-title .fa-chevron-down {
    margin-left: auto;
    transition: transform var(--transition-speed) ease;
}

.category-title-single i, .category-title > i:first-of-type {
    flex-shrink: 0;
}
.subcategory-list {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-in-out;
    padding-left: 20px;
}
.subcategory-list li {
    padding: 10px 10px 10px 25px;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    font-size: 0.9em;
    position: relative;
    border-radius: 5px;
}
.subcategory-list li:hover { background: rgba(0,0,0,0.2); }
.subcategory-list li.active {
    font-weight: bold;
    color: var(--primary-color);
}
.product-controls {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 30px;
}
.search-bar { position: relative; width: 100%; max-width: 450px; }
.search-bar input {
    width: 100%;
    padding: 12px 20px 12px 45px;
    border: 1px solid var(--border-color);
    background-color: var(--dark-bg-secondary);
    color: var(--text-primary);
    border-radius: 30px;
    font-size: 1em;
    transition: border-color var(--transition-speed) ease;
}
.search-bar input:focus { outline: none; border-color: var(--primary-color); }
.search-bar i {
    position: absolute;
    top: 50%; left: 18px;
    transform: translateY(-50%);
    color: var(--text-muted);
}
.product-grid-advanced {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
}
.product-card-advanced {
    background: var(--dark-bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: all var(--transition-speed) ease;
    text-decoration: none;
    display: flex;
    flex-direction: column;
}
.product-card-advanced.hidden { display: none; }
.product-card-advanced:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}
.product-card-advanced .product-image {
    height: 220px;
    overflow: hidden;
    background-color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px;
}
.product-card-advanced .product-image img {
    width: 100%; height: 100%;
    object-fit: contain;
    transition: transform 0.4s ease;
}
.product-card-advanced:hover .product-image img { transform: scale(1.08); }
.product-card-advanced .card-content {
    padding: 20px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}
.product-badge {
    background: rgba(243, 156, 18, 0.1);
    color: var(--primary-color);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75em;
    font-weight: 600;
    margin-bottom: 10px;
    align-self: flex-start;
}
.product-title {
    font-size: 1.2em;
    font-weight: 600;
    margin: 5px 0;
    color: var(--text-primary);
    flex-grow: 1;
}
.no-results-message {
    text-align: center;
    padding: 60px;
    background: var(--dark-bg-secondary);
    border-radius: 12px;
    width: 100%;
    grid-column: 1 / -1;
    border: 2px dashed var(--border-color);
}
.no-results-message i {
    font-size: 3em;
    color: var(--primary-color);
    margin-bottom: 20px;
}

/* === YAPILARIMIZ SAYFASI === */
.project-intro { background-color: var(--dark-bg-secondary); border-radius: 12px; }
.project-highlight { padding-top: 0; }
.project-highlight-card {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 50px;
    align-items: center;
    background: var(--dark-bg-secondary);
    padding: 50px;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}
.project-highlight-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 8px;
}
.project-highlight-content .project-badge {
    display: inline-block;
    background: var(--primary-color);
    color: var(--dark-bg-primary);
    padding: 6px 18px;
    border-radius: 30px;
    font-size: 0.8em;
    font-weight: 700;
    margin-bottom: 15px;
    text-transform: uppercase;
}
.project-highlight-content h2 { font-size: 2.8em; margin-bottom: 15px; }
.project-specs { list-style: none; margin: 30px 0; }
.project-specs li {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
    font-size: 1.1em;
}
.project-specs i {
    color: var(--primary-color);
    font-size: 1.2em;
    width: 25px;
    text-align: center;
}
.yapilarimiz-sayfasi .btn-gallery {
    width: 100%;
    padding: 18px 30px;
    font-size: 1.1em;
    letter-spacing: 1.5px;
}
.gallery-modal {
    display: none; position: fixed; z-index: 2000;
    left: 0; top: 0; width: 100%; height: 100%;
    background-color: rgba(17, 24, 39, 0.95);
    backdrop-filter: blur(5px);
    padding-top: 20px;
    animation: fadeIn 0.5s ease;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.gallery-modal .modal-content {
    margin: auto; display: block; width: 95%; max-width: 1400px; text-align: center; height: 100%; display: flex; flex-direction: column;
}
.close-btn {
    position: absolute; top: 15px; right: 35px;
    color: #f1f1f1; font-size: 40px; font-weight: bold;
    transition: var(--transition-speed) ease; cursor: pointer;
}
.close-btn:hover { color: var(--primary-color); transform: rotate(90deg); }
.main-image-container { position: relative; margin-bottom: 15px; flex-grow: 1; display:flex; align-items: center; }
#modalImage { width: 100%; max-height: 80vh; object-fit: contain; }
.prev-btn, .next-btn {
    cursor: pointer; position: absolute; top: 50%;
    width: auto; padding: 16px; margin-top: -30px;
    color: white; font-weight: bold; font-size: 24px;
    transition: var(--transition-speed) ease; border-radius: 8px;
    user-select: none; background-color: rgba(0,0,0,0.4);
}
.prev-btn { left: 10px; }
.next-btn { right: 10px; }
.prev-btn:hover, .next-btn:hover { background-color: var(--primary-color); }
#imageCounter { color: var(--text-secondary); font-size: 1.2em; margin-bottom: 15px; }
.thumbnail-container-wrapper { overflow-x: auto; padding: 10px 0; background: var(--dark-bg-secondary); border-radius: 8px; margin-bottom: 10px;}
.thumbnail-container { display: flex; gap: 10px; padding: 0 10px; width: max-content; }
.thumbnail {
    opacity: 0.5; cursor: pointer; transition: var(--transition-speed) ease;
    height: 80px; border: 3px solid transparent; border-radius: 5px;
}
.thumbnail:hover, .thumbnail.active { opacity: 1; border-color: var(--primary-color); }

/* === KAYDIRMA ANİMASYONU === */
.fade-in-on-scroll {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.645, 0.045, 0.355, 1), transform 0.8s cubic-bezier(0.645, 0.045, 0.355, 1);
}
.fade-in-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* === HAKKIMIZDA SAYFASI === */
.about-flex {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    align-items: center;
}
.about-image img {
    width: 100%;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}
.about-text h2 { font-size: 2.8em; margin: 10px 0 20px; }
.vision-mission { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 30px; }
.vm-box {
    background: var(--dark-bg-secondary);
    padding: 25px;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
}
.vm-box h4 {
    display: flex; align-items: center;
    gap: 12px; margin-bottom: 10px;
}
.vm-box i { color: var(--primary-color); }

/* === (NEDEN BİZ) DEĞERLER BÖLÜMÜ === */
.our-values {
    background: linear-gradient(rgba(17, 24, 39, 0.9), rgba(17, 24, 39, 0.95)), url('img/bizkimizfoto.jpg') no-repeat center center/cover;
    background-attachment: fixed;
}
.our-values .section-title h2,
.our-values .section-title span {
    color: var(--white);
}
.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    text-align: center;
}
.value-item {
    background: rgba(31, 41, 55, 0.7);
    backdrop-filter: blur(5px);
    padding: 25px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}
.value-item i {
    font-size: 3em; color: var(--primary-color);
    margin-bottom: 15px; display: inline-block;
    transition: transform var(--transition-speed) ease;
}
.value-item:hover i { transform: scale(1.1) rotate(-5deg); }
.value-item h4 { font-size: 1.4em; margin-bottom: 10px; }

/* === İLETİŞİM SAYFASI === */
.contact-grid-new {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}
.contact-col-left, .contact-col-right {
    display: flex; flex-direction: column; gap: 40px;
}
.contact-card {
    background: var(--dark-bg-secondary);
    padding: 35px;
    border-radius: 12px;
    border-left: 4px solid var(--primary-color);
    box-shadow: var(--shadow-md);
}
.contact-card h3 { margin-bottom: 15px; font-size: 1.8em; }
.contact-card p { margin-bottom: 25px; }
.social-icons-contact {
    display: flex;
    justify-content: center;
    gap: 20px;
}
.social-icon {
    color: var(--text-secondary);
    font-size: 1.5em; width: 50px; height: 50px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 50%;
    background: var(--dark-bg-primary);
    border: 2px solid var(--border-color);
    transition: all var(--transition-speed) ease;
}
.social-icon:hover {
    background: var(--primary-color);
    color: var(--dark-bg-primary);
    border-color: var(--primary-color);
    transform: translateY(-5px);
}
.whatsapp-button {
    display: inline-flex; align-items: center; justify-content: center;
    gap: 10px; background-color: #25D366; color: var(--white);
    padding: 15px 30px; border-radius: 30px; text-decoration: none;
    font-weight: bold; font-size: 1.1em;
    transition: all var(--transition-speed) ease;
    width: 100%;
}
.whatsapp-button:hover { background-color: #128C7E; transform: scale(1.05); }
.whatsapp-button i { font-size: 1.4em; }
.contact-list { list-style: none; }
.contact-list li {
    display: flex; align-items: flex-start;
    gap: 20px; margin-bottom: 25px;
}
.contact-list i {
    color: var(--primary-color);
    font-size: 1.6em; margin-top: 5px;
}
.map-wrapper, .contact-static-image {
    border-radius: 12px;
    overflow: hidden;
    height: 350px;
    box-shadow: var(--shadow-lg);
}
.map-wrapper iframe { filter: invert(0.9) hue-rotate(200deg); }
.contact-static-image img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* === YENİ EKLENEN YAPILARIMIZ BÖLÜMÜ STİLLERİ === */
.site-features {
    background: var(--dark-bg-secondary);
}
.features-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}
.features-content p {
    font-size: 1.1em;
    margin-bottom: 30px;
}
.features-content ul {
    list-style: none;
    text-align: left;
    margin-bottom: 30px;
    padding-left: 0;
}
.features-content ul li {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 20px;
    font-size: 1.05em;
}
.features-content ul i {
    color: var(--primary-color);
    font-size: 1.5em;
    margin-top: 5px;
    width: 30px;
    text-align: center;
    flex-shrink: 0;
}


/* === GÜNCELLENEN FOOTER STİLLERİ === */
.site-footer-v2 {
    background-color: var(--dark-bg-secondary);
    color: var(--text-secondary);
    padding-top: 80px;
    font-size: 0.95em;
    border-top: 1px solid var(--border-color);
}
.footer-v2-main {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 60px;
}
.footer-v2-col h4 {
    color: var(--text-primary);
    font-size: 1.3em; margin-bottom: 25px;
    position: relative; padding-bottom: 10px;
}
.footer-v2-col h4::after {
    content:''; position: absolute; left: 0; bottom: 0;
    width: 40px; height: 3px; background-color: var(--primary-color);
}
.footer-v2-col.about-col .footer-logo {
    height: 75px;
    margin-bottom: 20px;
}
.footer-phone {
    font-size: 1.1em;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 10px;
}
.footer-phone i { color: var(--primary-color); font-size: 1.2em; }
.footer-v2-col.links-col ul { list-style: none; }
.footer-v2-col.links-col ul li { margin-bottom: 12px; }
.footer-v2-col.links-col ul a { color: var(--text-secondary); }
.footer-v2-col.links-col ul a:hover { color: var(--primary-color); padding-left: 5px; }

.footer-address {
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 20px;
}
.footer-address:hover {
    color: var(--primary-color);
}
.footer-address i {
    color: var(--primary-color);
}
.footer-v2-col.contact-col .footer-phone {
    margin: 0 0 25px 0;
    align-items: flex-start;
}
.footer-v2-col.contact-col .footer-phone a {
    color: var(--text-primary);
    line-height: 1.5;
}
.footer-v2-col.contact-col .footer-phone a:hover {
    color: var(--primary-hover-color);
}
.footer-social-icons-large {
    display: flex;
    gap: 15px;
}
.footer-social-icons-large a {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--dark-bg-primary);
    color: var(--text-primary);
    text-decoration: none;
    transition: all var(--transition-speed) ease;
    font-size: 1.6em;
}
.footer-social-icons-large a:hover {
    background-color: var(--primary-color);
    transform: translateY(-5px);
    color: var(--dark-bg-primary);
}
.footer-v2-bottom {
    border-top: 1px solid var(--border-color);
    padding: 25px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9em;
}
.footer-bottom-links a { color: var(--text-secondary); margin-left: 20px; }
.footer-bottom-links a:hover { color: var(--primary-color); }

/* === ANASAYFA YENİ BÖLÜMLER === */

/* --- Ana Kategori Bölümü Arka Planı --- */
.home-categories {
    background: linear-gradient(rgba(17, 24, 39, 0.9), rgba(17, 24, 39, 0.95)), url('img/kategorilerfoto.jpg') no-repeat center center/cover;
    background-attachment: fixed;
}
.home-categories .category-card-home {
    background-color: rgba(31, 41, 55, 0.7);
    backdrop-filter: blur(5px);
}
.home-categories .section-title h2,
.home-categories .section-title span {
    color: var(--white);
}
.category-grid-home {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 25px;
}
.category-card-home {
    background: var(--dark-bg-primary);
    padding: 25px;
    text-align: center;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all var(--transition-speed) ease;
    text-decoration: none;
}
.category-card-home:hover {
    transform: translateY(-8px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
    background: var(--dark-bg-secondary);
}
.category-card-home i {
    font-size: 2.5em;
    color: var(--primary-color);
    margin-bottom: 15px;
    display: block;
}
.category-card-home h4 {
    color: var(--text-primary);
    font-size: 1em;
    font-weight: 600;
}

/* --- Öne Çıkan Ürünler Bölümü --- */
.featured-products-home {
    background-color: var(--dark-bg-primary);
}
.featured-products-home .product-grid-advanced {
    grid-template-columns: repeat(4, 1fr);
}

/* === RESPONSIVE (MOBİL UYUMLULUK) === */
@media (max-width: 1200px) {
    .featured-products-home .product-grid-advanced {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 1024px) {
    .products-layout-advanced { grid-template-columns: 1fr; }
    .product-sidebar-advanced { position: static; margin-bottom: 40px; }
    .project-highlight-card { grid-template-columns: 1fr; gap: 30px; }
    .about-flex { grid-template-columns: 1fr; gap: 40px; }
    .contact-grid-new { grid-template-columns: 1fr; }
    .header-main .logo img { height: 50px; } /* Değiştirildi */
    .search-container { max-width: 400px; }
    .main-nav ul { justify-content: flex-start; overflow-x: auto; }
    .mega-menu { width: 100%; left: 0; transform: translateX(0) translateY(10px); }
    .has-megamenu:hover .mega-menu { transform: translateY(0); }
    .footer-v2-main { grid-template-columns: 1fr 1fr; }
    .project-grid-home-four-items { grid-template-columns: repeat(2, 1fr); }
    main { padding-top: 140px; }
    .home-page .hero-section { margin-top: -140px; }
}

@media (max-width: 992px) {
    .featured-products-home .product-grid-advanced {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    section { padding: 80px 0; }
    main { padding-top: 160px; } /* Değiştirildi */
    .home-page .hero-section { margin-top: -160px; } /* Değiştirildi */
    .header-main { padding: 15px 0; }
    
    .header-main .container {
        flex-wrap: wrap;
        justify-content: space-between;
    }
    
    .header-social-icons-main, .main-nav { display: none; }
    
    .search-container {
        order: 3;
        width: 100%;
        margin-top: 15px;
    }

    .hamburger-menu { display: block; }
    .main-nav.active {
        display: block;
        position: fixed;
        top: 0; left: 0;
        width: 100%; height: 100vh;
        background: var(--dark-bg-primary);
        padding-top: 100px;
        z-index: 999;
        overflow-y: auto;
    }
    .main-nav.active ul { flex-direction: column; align-items: center; gap: 10px; }
    .main-nav.active li a { font-size: 1.5em; padding: 15px; }
    .has-megamenu:hover .mega-menu { display: none; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .vision-mission { grid-template-columns: 1fr; }
    .footer-v2-main { grid-template-columns: 1fr; }
    .footer-v2-bottom { flex-direction: column; gap: 15px; }
    .project-grid-home-four-items { grid-template-columns: 1fr; }
    
    .home-categories .category-grid-home {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 480px) {
    .category-card-home h4 {
        font-size: 0.9em;
    }
}