:root {
    --primary: #0056b3;       /* Koyu mavi - kurumsal güven */
    --secondary: #00a0e3;     /* Açık mavi - suyu çağrıştıran */
    --accent: #e0f7ff;        /* Buz mavisi - hafif tonlama için */
    --light: #f8fbff;         /* Açık gri-mavi - arka planlar için */
    --dark: #103959;          /* Koyu lacivert - metin ve vurgular için */
    --white: #ffffff;
    --gray: #6c757d;
    --section-padding: 6rem 0;
}

body {
    font-family: 'Open Sans', Arial, sans-serif;
    background-color: var(--white);
    color: #333;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
}

.btn-primary {
    background-color: var(--primary);
    border-color: var(--primary);
    border-radius: 4px;
    padding: 0.75rem 1.75rem;
    font-weight: 500;
    transition: all 0.3s ease;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 1px;
}

.btn-primary:hover {
    background-color: var(--dark);
    border-color: var(--dark);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.btn-outline-primary {
    color: var(--primary);
    border-color: var(--primary);
    border-radius: 4px;
    padding: 0.75rem 1.75rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-outline-primary:hover {
    background-color: var(--primary);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* Navbar Styles */
.navbar {
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 1rem 0;
    transition: all 0.4s ease;
}

.navbar.scrolled {
    padding: 0.5rem 0;
    background-color: rgba(255, 255, 255, 0.98);
}

.navbar-brand {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary);
    display: flex;
    align-items: center;
}

.navbar-brand img {
    height: 50px;
    margin-right: 10px;
}

.navbar-nav .nav-link {
    color: var(--dark);
    font-weight: 500;
    margin: 0 12px;
    padding: 0.5rem 0;
    position: relative;
    transition: color 0.3s;
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--secondary);
    transition: width 0.3s ease;
}

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

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

/* Hero Section */
.hero {
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), url('image/logo.jpg') no-repeat center center/cover;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    color: white;
}

.hero-content {
    max-width: 800px;
    padding: 2rem;
    z-index: 2;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2.5rem;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

/* Section Styles */
section {
    padding: var(--section-padding);
}

.section-light {
    background-color: var(--light);
}

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

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-align: center;
    color: var(--dark);
    position: relative;
    padding-bottom: 15px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--secondary);
}

.section-subtitle {
    font-size: 1.1rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--gray);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* About Section */
.about-image {
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    border-radius: 10px;
    overflow: hidden;
}

.about-image img {
    width: 100%;
    height: auto;
    transition: transform 0.5s ease;
}

.about-image:hover img {
    transform: scale(1.05);
}

.about-content h3 {
    color: var(--dark);
    margin-bottom: 1.5rem;
    font-size: 2rem;
}

.about-content p {
    font-size: 1.05rem;
    line-height: 1.8;
    color: #555;
    margin-bottom: 1.5rem;
}

.about-feature {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1.5rem;
}

.about-feature i {
    font-size: 1.5rem;
    color: var(--primary);
    margin-right: 1rem;
    margin-top: 0.25rem;
}

/* Products Section */
.product-card {
    border: none;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    margin-bottom: 30px;
    background-color: white;
}

.product-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.product-image {
    position: relative;
    overflow: hidden;
    height: 250px;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 86, 179, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.product-card:hover .product-overlay {
    opacity: 1;
}

.product-content {
    padding: 1.5rem;
    text-align: center;
}

.product-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--dark);
}

.product-description {
    font-size: 0.95rem;
    color: #666;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

/* Gallery Section */
.gallery-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    grid-gap: 15px;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    cursor: pointer;
}

.gallery-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.gallery-item:hover .gallery-image {
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-icon {
    color: white;
    font-size: 2rem;
}

/* Video Section */
.video-container {
    max-width: 800px;
    margin: 0 auto;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
    border-radius: 15px;
    overflow: hidden;
}

.video-container video {
    width: 100%;
    display: block;
}

/* Stats Section */
.stats-section {
    background: linear-gradient(rgba(0, 86, 179, 0.9), rgba(0, 86, 179, 0.9)), url('image/logo.jpg') no-repeat center center/cover;
    color: white;
    position: relative;
    padding: 4rem 0;
}

.stats-item {
    text-align: center;
    margin-bottom: 2rem;
}

.stats-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--accent);
}

.stats-number {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    font-family: 'Montserrat', sans-serif;
}

.stats-text {
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Testimonials Section */
.testimonial-card {
    background-color: white;
    border-radius: 10px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    margin: 1rem;
    position: relative;
}

.testimonial-card::before {
    content: '\201C';
    font-size: 6rem;
    position: absolute;
    top: -20px;
    left: 20px;
    color: var(--accent);
    font-family: Georgia, serif;
    opacity: 0.3;
}

.testimonial-text {
    font-style: italic;
    margin-bottom: 1.5rem;
    line-height: 1.7;
    color: #555;
    position: relative;
    z-index: 1;
}

.testimonial-author {
    display: flex;
    align-items: center;
}

.testimonial-image {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    margin-right: 1rem;
    border: 3px solid var(--accent);
}

.testimonial-info h5 {
    margin-bottom: 0.2rem;
    color: var(--dark);
}

.testimonial-info span {
    color: var(--gray);
    font-size: 0.9rem;
}

/* Contact Section */
.contact-info-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 2rem;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background-color: var(--primary);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-size: 1.2rem;
    margin-right: 1.5rem;
    flex-shrink: 0;
}

.contact-details h5 {
    color: var(--dark);
    margin-bottom: 0.5rem;
}

.contact-details p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 0;
}

.contact-form {
    background-color: white;
    border-radius: 10px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.form-control {
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    padding: 0.8rem 1rem;
    margin-bottom: 1.5rem;
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 0.2rem rgba(0, 86, 179, 0.25);
}

/* Footer */
footer {
    background-color: var(--dark);
    color: white;
    padding: 4rem 0 0;
}

.footer-logo {
    font-family: 'Montserrat', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1rem;
}

.footer-about p {
    color: #bbb;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.footer-social a {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
    margin-right: 0.5rem;
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background-color: var(--secondary);
    transform: translateY(-5px);
}

.footer-heading {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 10px;
}

.footer-heading::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 2px;
    background-color: var(--secondary);
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-links a {
    color: #bbb;
    text-decoration: none;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
}

.footer-links a i {
    margin-right: 10px;
    font-size: 0.8rem;
}

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

.footer-contact p {
    display: flex;
    align-items: flex-start;
    color: #bbb;
    margin-bottom: 1rem;
}

.footer-contact i {
    margin-right: 1rem;
    color: var(--secondary);
}

.footer-newsletter p {
    color: #bbb;
    margin-bottom: 1rem;
    line-height: 1.7;
}

.newsletter-form {
    display: flex;
}

.newsletter-input {
    flex: 1;
    border: none;
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    padding: 0.8rem 1rem;
    border-radius: 4px 0 0 4px;
}

.newsletter-input::placeholder {
    color: #bbb;
}

.newsletter-btn {
    background-color: var(--secondary);
    color: white;
    border: none;
    padding: 0 1.5rem;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

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

.footer-bottom {
    background-color: rgba(0, 0, 0, 0.2);
    padding: 1.5rem 0;
    margin-top: 3rem;
    text-align: center;
}

.footer-bottom p {
    margin-bottom: 0;
    color: #bbb;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s ease;
    z-index: 99;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
}

.back-to-top.active {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: var(--dark);
    transform: translateY(-5px);
}

/* Responsive Styles */
@media (max-width: 991px) {
    .navbar-collapse {
        background-color: white;
        padding: 1rem;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        border-radius: 8px;
        margin-top: 1rem;
    }
    
    .navbar-nav .nav-link {
        margin: 0.5rem 0;
    }
    
    .hero h1 {
        font-size: 2.8rem;
    }
    
    .section-title {
        font-size: 2.2rem;
    }
}

@media (max-width: 767px) {
    .hero h1 {
        font-size: 2.3rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .about-image {
        margin-bottom: 2rem;
    }
    
    .stats-item {
        margin-bottom: 2.5rem;
    }
    
    .contact-form {
        margin-top: 3rem;
    }
    
    .footer-about, .footer-links, .footer-contact, .footer-newsletter {
        margin-bottom: 2.5rem;
    }
}

@media (max-width: 575px) {
    .hero-buttons {
        flex-direction: column;
        gap: 1rem;
    }
    
    .btn {
        width: 100%;
    }
}
/* Video Bölümü CSS Kodları */
.video-thumbnail {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
    margin-bottom: 30px;
    cursor: pointer;
    height: 300px;
}

.video-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.video-thumbnail:hover img {
    transform: scale(1.1);
}

.video-play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 70px;
    height: 70px;
    background-color: rgba(0, 86, 179, 0.8);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-size: 1.5rem;
    z-index: 2;
    transition: all 0.3s ease;
}

.video-thumbnail:hover .video-play-button {
    background-color: rgba(0, 160, 227, 0.9);
    width: 80px;
    height: 80px;
    box-shadow: 0 0 20px rgba(0, 160, 227, 0.5);
}

.video-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 20px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    color: white;
    transition: all 0.3s ease;
}

.video-overlay h4 {
    font-size: 1.2rem;
    margin-bottom: 5px;
    font-weight: 600;
}

.video-overlay p {
    font-size: 0.9rem;
    margin-bottom: 0;
    opacity: 0.8;
}

/* Modal CSS düzenlemeleri */
.modal-content {
    border: none;
    border-radius: 15px;
    overflow: hidden;
}

.modal-header {
    background-color: #0056b3;
    color: white;
    border: none;
}

.modal-header .btn-close {
    color: white;
    filter: invert(1) brightness(200%);
}

.modal-body {
    padding: 0 !important;
}

.modal-body video {
    display: block;
}

/* Video durdurma/oynatma JavaScript fonksiyonu için gereken CSS */
.modal.fade {
    transition: opacity 0.15s linear;
}

@media (max-width: 767px) {
    .video-thumbnail {
        height: 200px;
    }
    
    .video-play-button {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
    
    .video-thumbnail:hover .video-play-button {
        width: 60px;
        height: 60px;
    }
}