/* ============================================
   GENEL AYARLAR VE DEĞİŞKENLER
   ============================================ */

:root {
    /* Renk Paleti */
    --color-primary: #2c3e50; /* Koyu lacivert */
    --color-secondary: #34495e; /* Orta lacivert */
    --color-accent: #ff6b35; /* Turuncu vurgu */
    --color-dark: #1a252f; /* Footer için koyu mor/lacivert */
    --color-white: #ffffff;
    --color-light-gray: #f5f5f5;
    --color-gray: #e0e0e0;
    --color-text: #333333;
    --color-text-light: #666666;
    
    /* Font */
    --font-primary: 'Poppins', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* ============================================
   HEADER & NAVBAR
   ============================================ */

.header {
    position: sticky;
    top: 0;
    background-color: var(--color-white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all var(--transition-normal);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

/* Logo */
.logo {
    display: flex;
    flex-direction: column;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin: 0;
    line-height: 1.2;
}

.logo-tagline {
    font-size: 0.75rem;
    color: var(--color-text-light);
    margin: 0;
    font-weight: 300;
}

/* Desktop Navigation */
.nav-desktop {
    display: none;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--color-text);
    font-weight: 500;
    font-size: 0.95rem;
    transition: color var(--transition-fast);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width var(--transition-normal);
}

.nav-link:hover::after {
    width: 100%;
}

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

.dropdown-arrow {
    font-size: 0.7rem;
    margin-left: 5px;
    transition: transform var(--transition-fast);
}

.dropdown-parent:hover .dropdown-arrow {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--color-white);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    list-style: none;
    min-width: 180px;
    padding: var(--spacing-xs) 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-normal);
    margin-top: 10px;
}

.dropdown-parent:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li {
    padding: 0;
}

.dropdown-menu a {
    display: block;
    padding: var(--spacing-xs) var(--spacing-sm);
    color: var(--color-text);
    text-decoration: none;
    transition: background-color var(--transition-fast);
}

.dropdown-menu a:hover {
    background-color: var(--color-light-gray);
    color: var(--color-accent);
}

/* Hamburger Menu */
.hamburger {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    z-index: 1001;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--color-primary);
    transition: all var(--transition-normal);
    border-radius: 2px;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Mobile Navigation */
.nav-mobile {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

.nav-mobile.active {
    max-height: 500px;
}

.nav-mobile-list {
    list-style: none;
    padding: var(--spacing-sm);
}

.nav-mobile-list li {
    margin-bottom: var(--spacing-xs);
}

.nav-mobile-list .nav-link {
    display: block;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-bottom: 1px solid var(--color-gray);
}

.mobile-dropdown-parent {
    position: relative;
}

.mobile-dropdown-menu {
    list-style: none;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
    padding-left: var(--spacing-md);
}

.mobile-dropdown-menu.active {
    max-height: 300px;
}

.mobile-dropdown-menu li {
    margin-bottom: var(--spacing-xs);
}

.mobile-dropdown-menu a {
    display: block;
    padding: var(--spacing-xs) var(--spacing-sm);
    color: var(--color-text-light);
    text-decoration: none;
}

.mobile-dropdown-trigger {
    cursor: pointer;
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    position: relative;
    min-height: 70vh;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-slider {
    width: 100%;
    height: 100%;
}

.hero-slide {
    width: 100%;
    padding: var(--spacing-xl) 0;
    display: none;
}

.hero-slide.active {
    display: block;
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.hero-text {
    color: var(--color-white);
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.9;
    line-height: 1.8;
}

.hero-products {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
}

.product-card {
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 10px;
    padding: var(--spacing-md);
    text-align: center;
    transition: transform var(--transition-normal);
}

.product-card:hover {
    transform: translateY(-5px);
}

.product-placeholder {
    color: var(--color-white);
    font-weight: 500;
    padding: var(--spacing-md);
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 5px;
}

.hero-indicators {
    position: absolute;
    bottom: var(--spacing-md);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: var(--spacing-xs);
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.indicator.active {
    background-color: var(--color-accent);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    transition: all var(--transition-normal);
    border: none;
    cursor: pointer;
    font-family: var(--font-primary);
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: #e55a2b;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 107, 53, 0.3);
}

/* ============================================
   MARKALAR ŞERİDİ
   ============================================ */

.brands-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-white);
}

.section-title {
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
}

.brands-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    align-items: center;
}

.brand-item {
    text-align: center;
    padding: var(--spacing-md);
    transition: transform var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 120px;
    background-color: var(--color-light-gray);
    border-radius: 8px;
}

.brand-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.brand-item a {
    display: block;
    text-decoration: none;
    color: inherit;
}

.brand-logo-img {
    max-width: 100%;
    max-height: 80px;
    width: auto;
    height: auto;
    object-fit: contain;
    padding: var(--spacing-sm);
    filter: grayscale(100%);
    opacity: 0.8;
    transition: all var(--transition-normal);
    background-color: transparent;
}

.brand-item:hover .brand-logo-img {
    filter: grayscale(0%);
    opacity: 1;
    transform: scale(1.1);
}

.brand-logo-text {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-primary);
    padding: var(--spacing-md);
    background-color: var(--color-light-gray);
    border-radius: 8px;
    transition: all var(--transition-normal);
}

.brand-item:hover .brand-logo-text {
    background-color: var(--color-accent);
    color: var(--color-white);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* ============================================
   HAKKIMIZDA BÖLÜMÜ
   ============================================ */

.about-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-light-gray);
}

.about-content {
    display: grid;
    gap: var(--spacing-lg);
}

.about-text {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.about-text p {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-light);
    font-size: 1.05rem;
    line-height: 1.8;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.feature-card {
    background-color: var(--color-white);
    padding: var(--spacing-md);
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    transition: transform var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.feature-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.feature-description {
    color: var(--color-text-light);
    font-size: 0.95rem;
}

/* ============================================
   SEKTÖRLER BÖLÜMÜ
   ============================================ */

.sectors-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-white);
}

.sectors-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.sector-card {
    background-color: var(--color-light-gray);
    padding: var(--spacing-md);
    border-radius: 10px;
    text-align: center;
    transition: all var(--transition-normal);
    cursor: pointer;
}

.sector-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    background-color: var(--color-white);
}

.sector-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.sector-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.sector-description {
    color: var(--color-text-light);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ============================================
   BLOG BÖLÜMÜ
   ============================================ */

.blog-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-light-gray);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.blog-card {
    background-color: var(--color-white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    transition: transform var(--transition-normal);
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

.blog-image-placeholder {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 0.9rem;
}

.blog-content {
    padding: var(--spacing-md);
}

.blog-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.blog-excerpt {
    color: var(--color-text-light);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.blog-link {
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.blog-link:hover {
    color: #e55a2b;
}

/* ============================================
   İLETİŞİM BÖLÜMÜ
   ============================================ */

.contact-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.contact-form-wrapper {
    background-color: var(--color-light-gray);
    padding: var(--spacing-md);
    border-radius: 10px;
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--color-primary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--color-gray);
    border-radius: 5px;
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
}

.form-group textarea {
    resize: vertical;
}

.contact-info-wrapper {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-item {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-start;
}

.contact-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.contact-details h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 5px;
}

.contact-details p {
    color: var(--color-text-light);
    line-height: 1.6;
}

.map-placeholder {
    width: 100%;
    height: 300px;
    background-color: var(--color-gray);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-light);
    font-size: 0.9rem;
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    background-color: var(--color-dark);
    color: var(--color-white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-accent);
}

.footer-about p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
    font-size: 0.95rem;
}

.footer-link-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-white);
}

.footer-link-list {
    list-style: none;
}

.footer-link-list li {
    margin-bottom: var(--spacing-xs);
}

.footer-link-list a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color var(--transition-fast);
    font-size: 0.95rem;
}

.footer-link-list a:hover {
    color: var(--color-accent);
}

.social-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.social-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color var(--transition-fast);
    font-size: 0.95rem;
}

.social-link:hover {
    color: var(--color-accent);
}

.social-icon {
    font-size: 1.2rem;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

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

/* Tablet */
@media (min-width: 768px) {
    .nav-desktop {
        display: block;
    }
    
    .hamburger {
        display: none;
    }
    
    .nav-mobile {
        display: none !important;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .brands-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .sectors-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

/* Desktop */
@media (min-width: 1024px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .brands-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .sectors-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .blog-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .contact-content {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-content {
        grid-template-columns: 2fr 1fr 1fr;
    }
}

/* Mobil */
@media (max-width: 767px) {
    .logo-text {
        font-size: 1.2rem;
    }
    
    .logo-tagline {
        font-size: 0.65rem;
    }
    
    .hero {
        min-height: 60vh;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-products {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .brands-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .sectors-grid {
        grid-template-columns: 1fr;
    }
    
    .blog-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .nav-mobile {
        display: block;
    }
}