/* Genel Ayarlar & CSS Değişkenleri */
:root {
    --primary-color: #0A192F; /* Koyu Mavi */
    --secondary-color: #112240; /* Daha Açık Mavi/Lacivert */
    --accent-color: #4A90E2; /* Premium Saten Açık Mavi / Royal Blue Vurgu */
    --text-main: #FFFFFF;
    --text-muted: #8892B0;
    --text-dark: #2B3A55; /* Açık arkaplanlar için metin */
    --bg-light: #F8F9FA;
    --bg-pure: #FFFFFF;
    
    --transition-fast: 0.3s ease;
    --transition-slow: 0.5s ease-in-out;
    
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-pure);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
}

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

ul {
    list-style: none;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

.section-padding {
    padding: 100px 0;
}

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

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

.mt-2 { margin-top: 2rem; }

/* Butonlar */
.btn-primary {
    display: inline-block;
    padding: 12px 32px;
    background-color: var(--accent-color);
    color: var(--primary-color);
    font-weight: 600;
    border-radius: 4px;
    border: 1px solid var(--accent-color);
    box-shadow: 0 4px 14px rgba(100, 255, 218, 0.4);
}
.btn-primary:hover {
    background-color: transparent;
    color: var(--accent-color);
    transform: translateY(-2px);
}

.btn-secondary {
    display: inline-block;
    padding: 12px 32px;
    background-color: transparent;
    color: var(--text-main);
    font-weight: 600;
    border-radius: 4px;
    border: 1px solid var(--text-main);
}
.btn-secondary:hover {
    background-color: var(--text-main);
    color: var(--primary-color);
    transform: translateY(-2px);
}

.btn-outline {
    border: 1px solid var(--accent-color);
    color: var(--accent-color) !important;
    padding: 8px 24px;
    border-radius: 4px;
    display: inline-block;
}
.btn-outline:hover {
    background-color: rgba(100, 255, 218, 0.1);
}

.btn-outline-dark {
    display: inline-block;
    padding: 12px 28px;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    font-weight: 600;
    border-radius: 4px;
    margin-top: 20px;
}
.btn-outline-dark:hover {
    background-color: var(--primary-color);
    color: var(--text-main);
}

/* Header & Navbar */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: background-color var(--transition-fast), padding var(--transition-fast);
    padding: 20px 0;
}
header.scrolled {
    background-color: rgba(10, 25, 47, 0.95);
    backdrop-filter: blur(10px);
    padding: 15px 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: 1px;
    display: flex;
    align-items: center;
}
.logo span {
    font-weight: 300;
    color: var(--accent-color);
}
.logo img {
    height: 45px;
    width: auto;
}
.footer-about .logo img {
    height: 55px;
}

.nav-links {
    display: flex;
    gap: 30px;
    align-items: center;
}
.nav-links a {
    color: var(--text-main);
    font-size: 15px;
    font-weight: 500;
    position: relative;
}
.nav-links a:not(.btn-outline):after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--accent-color);
    transition: width var(--transition-fast);
}
.nav-links a:not(.btn-outline):hover:after,
.nav-links a.active:not(.btn-outline):after {
    width: 100%;
}

.hamburger {
    display: none;
    color: var(--text-main);
    font-size: 24px;
    cursor: pointer;
}

/* Hero Section */
.hero {
    height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -2;
    transform: scale(1.05); /* Zoom in for initial animation */
    animation: slowZoom 20s infinite alternate linear;
}

@keyframes slowZoom {
    from { transform: scale(1.05); }
    to { transform: scale(1.15); }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, rgba(10, 25, 47, 0.8) 0%, rgba(10, 25, 47, 0.3) 100%);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: -1;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    color: var(--text-main);
    position: relative;
    z-index: 10;
}
.hero-content h1 {
    font-size: 4rem;
    line-height: 1.2;
    margin-bottom: 24px;
}
.hero-content h1 span {
    color: var(--accent-color);
}
.hero-content p {
    font-size: 1.2rem;
    color: #e2e8f0;
    margin: 0 auto 40px auto;
    max-width: 600px;
}
.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* Hakkımızda Sayfası */
.section-subtitle {
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 14px;
    margin-bottom: 15px;
    display: block;
    font-weight: 600;
}
.about .section-subtitle {
    color: #0077b6; /* Corporate blue for light bg */
}

.section-title {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 30px;
    line-height: 1.3;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text p {
    color: #4a5568;
    margin-bottom: 30px;
    font-size: 1.1rem;
}

.about-features {
    margin-bottom: 30px;
}
.about-features li {
    margin-bottom: 15px;
    font-size: 1.1rem;
    color: var(--primary-color);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 15px;
}
.about-features i {
    color: #0077b6;
    font-size: 1.2rem;
}

.about-image {
    position: relative;
}
.image-wrapper {
    position: relative;
}
.image-wrapper img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    display: block;
}
.experience-badge {
    position: absolute;
    bottom: -30px;
    left: -30px;
    background-color: var(--primary-color);
    color: var(--text-main);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(10, 25, 47, 0.3);
    border-left: 4px solid var(--accent-color);
}
.experience-badge .numbers {
    display: block;
    font-size: 3rem;
    font-weight: 700;
    font-family: var(--font-heading);
    line-height: 1;
}
.experience-badge .text {
    font-size: 14px;
    color: #E2E8F0;
}

/* Hizmetler */
.bg-dark {
    background-color: var(--secondary-color);
}
.bg-dark .section-subtitle {
    color: var(--accent-color);
}
.bg-dark .section-title,
.bg-dark p {
    color: var(--text-main);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.glassmorphism {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 40px 30px;
    transition: transform var(--transition-fast), background var(--transition-fast);
}
.glassmorphism:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(100, 255, 218, 0.3);
}

.service-card .icon {
    width: 60px;
    height: 60px;
    background-color: rgba(100, 255, 218, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-color);
    font-size: 24px;
    margin-bottom: 25px;
    transition: background-color var(--transition-fast);
}
.service-card:hover .icon {
    background-color: var(--accent-color);
    color: var(--primary-color);
}
.service-card h3 {
    color: var(--text-main);
    margin-bottom: 15px;
    font-size: 1.4rem;
}
.service-card p {
    color: #E2E8F0;
}

/* Footer */
.footer {
    background-color: var(--primary-color);
    color: var(--text-main);
    padding: 80px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 60px;
}

.footer-about .logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 20px;
}
.footer-about .logo span {
    font-weight: 300;
    color: var(--accent-color);
}
.footer-about p {
    margin-bottom: 25px;
    max-width: 400px;
}

.social-links {
    display: flex;
    gap: 15px;
}
.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-main);
    transition: var(--transition-fast);
}
.social-links a:hover {
    background-color: var(--accent-color);
    color: var(--primary-color);
    transform: translateY(-3px);
}

.footer-links h3, .footer-contact h3 {
    color: var(--text-main);
    margin-bottom: 25px;
    font-size: 1.2rem;
}
.footer-links ul li {
    margin-bottom: 12px;
}
.footer-links ul li a {
    color: #E2E8F0;
}
.footer-links ul li a:hover {
    color: var(--accent-color);
    padding-left: 5px;
}

.footer-contact ul li {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
    align-items: flex-start;
}
.footer-contact ul li i {
    color: var(--accent-color);
    margin-top: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 14px;
}

/* Projeler */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.project-card {
    background: var(--bg-pure);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(10, 25, 47, 0.1);
}

.project-img-wrapper {
    position: relative;
    overflow: hidden;
    height: 250px;
}

.project-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    image-rendering: -webkit-optimize-contrast; /* For extra sharpness in some browsers */
    transition: transform var(--transition-slow);
}

.project-card:hover .project-img-wrapper img {
    transform: scale(1.1);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 25, 47, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

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

.view-btn {
    padding: 12px 28px;
    background: var(--accent-color);
    color: var(--primary-color);
    border-radius: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 16px;
    font-weight: 600;
    transform: translateY(20px);
    transition: transform var(--transition-fast) 0.1s, background var(--transition-fast);
}

.view-btn i {
    font-size: 18px;
}

.project-card:hover .view-btn {
    transform: translateY(0);
}

.project-info {
    padding: 25px;
}

.project-info h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 1.3rem;
}

.project-info p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Animasyon Sınıfları - Güvenli Model (Kesin Çözüm v2) */
.fade-in-up, .slide-in-left, .slide-in-right {
    opacity: 1; /* Varsayılan: Her zaman görünür (Failsafe) */
    transform: none;
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Sadece JS hazır olduğunda elementleri sakla */
body.animations-ready .fade-in-up {
    opacity: 0;
    transform: translateY(30px);
}
body.animations-ready .slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
}
body.animations-ready .slide-in-right {
    opacity: 0;
    transform: translateX(50px);
}

/* Animasyon tetiklendiğinde görünür yap */
.visible.fade-in-up, 
.visible.slide-in-left, 
.visible.slide-in-right {
    opacity: 1 !important;
    transform: none !important;
}

.delay-1 { transition-delay: 0.2s; }
.delay-2 { transition-delay: 0.4s; }

/* Responsive Tasarım */
@media (max-width: 992px) {
    .about-grid {
        grid-template-columns: 1fr;
    }
    .experience-badge {
        bottom: -20px;
        left: 20px;
    }
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .hero-content h1 {
        font-size: 2.8rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .hamburger {
        display: block;
    }
    .services-grid, .footer-grid {
        grid-template-columns: 1fr;
    }
    .hero-content h1 {
        font-size: 2.2rem;
    }
    .hero-buttons {
        flex-direction: column;
        gap: 10px;
    }
    .btn-primary, .btn-secondary {
        text-align: center;
    }
    .footer-grid {
        gap: 40px;
    }
}

/* Lightbox Modal */
.lightbox {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(10, 25, 47, 0.95);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    justify-content: center;
    align-items: center;
}
.lightbox-content {
    max-width: 90%;
    max-height: 85vh;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.5);
    animation: zoomIn 0.3s ease;
    object-fit: contain;
}
.lightbox-close {
    position: absolute;
    top: 30px;
    right: 40px;
    color: #f1f1f1;
    font-size: 50px;
    font-weight: 300;
    transition: 0.3s;
    cursor: pointer;
    z-index: 10000;
}
.lightbox-close:hover {
    color: var(--accent-color);
}
@keyframes zoomIn {
    from {transform:scale(0.9); opacity:0;}
    to {transform:scale(1); opacity:1;}
}

/* Cookie Consent */
.cookie-popup {
    display: none;
    position: fixed;
    bottom: 20px;
    left: 20px;
    max-width: 450px;
    background: rgba(10, 25, 47, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 24px;
    z-index: 10000;
    box-shadow: 0 15px 40px rgba(0,0,0,0.4);
    transform: translateY(150%);
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.cookie-popup.show {
    transform: translateY(0);
}
.cookie-content h4 {
    color: white;
    margin-bottom: 8px;
    font-size: 1.1rem;
}
.cookie-content p {
    color: #cbd5e1;
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 16px;
}
.cookie-buttons {
    display: flex;
    gap: 12px;
}
.cookie-buttons button {
    padding: 10px 20px;
    font-size: 0.9rem;
    font-family: inherit;
    font-weight: 500;
    cursor: pointer;
    border-radius: 6px;
    transition: 0.3s;
}
.cookie-buttons .btn {
    background-color: var(--accent-color);
    color: white;
    border: none;
}
.cookie-buttons .btn:hover {
    background-color: #357abd;
}
.cookie-buttons .btn-outline {
    background-color: transparent;
    color: #cbd5e1;
    border: 1px solid #cbd5e1;
}
.cookie-buttons .btn-outline:hover {
    background-color: rgba(255,255,255,0.1);
    color: white;
}
@media(max-width: 576px) {
    .cookie-popup {
        bottom: 10px; left: 10px; right: 10px; max-width: none;
    }
}
/* Modal & Project Detail Popup */
.project-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 25, 47, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 10001;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.project-modal.show {
    display: flex;
}

.modal-content {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    max-width: 1100px;
    width: 95%;
    max-height: 95vh;
    overflow-y: auto;
    position: relative;
    padding: 40px;
    color: white;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    animation: modalSlideIn 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalSlideIn {
    from { transform: translateY(50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 25px;
    font-size: 2rem;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition-fast);
}

.modal-close:hover {
    color: var(--accent-color);
}

.modal-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.modal-image-container {
    position: relative;
    width: 100%;
}

.modal-main-image {
    width: 100%;
    height: 500px;
    border-radius: 12px;
    overflow: hidden;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.modal-main-image img {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
    transition: opacity 0.3s ease;
}

.gallery-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    background: rgba(10, 25, 47, 0.7);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
    z-index: 5;
    font-size: 1.2rem;
}

.gallery-nav:hover {
    background: var(--accent-color);
    color: var(--primary-color);
}

.gallery-nav.prev { left: 10px; }
.gallery-nav.next { right: 10px; }

.modal-thumbnails {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(70px, 1fr));
    gap: 10px;
    margin-top: 15px;
}

.thumbnail-item {
    aspect-ratio: 1;
    border-radius: 6px;
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition-fast);
}

.thumbnail-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.6;
}

.thumbnail-item:hover img,
.thumbnail-item.active img {
    opacity: 1;
}

.thumbnail-item.active {
    border-color: var(--accent-color);
}

@media (max-width: 768px) {
    .modal-main-image {
        height: 250px;
    }
}

.modal-details h2 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--accent-color);
}

.modal-info-list {
    margin: 25px 0;
    padding: 0;
}

.modal-info-list li {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 12px;
    font-size: 1rem;
    color: #cbd5e1;
}

.modal-info-list li i {
    color: var(--accent-color);
    width: 20px;
}

.modal-description {
    line-height: 1.7;
    color: #e2e8f0;
}

.modal-details .btn-primary {
    margin-top: 30px;
}

@media (max-width: 768px) {
    .modal-grid {
        grid-template-columns: 1fr;
    }
    .modal-content {
        padding: 25px;
    }
}
.project-category-title {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin: 60px 0 30px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--accent-color);
    display: inline-block;
    font-weight: 700;
}

.projects-section-first .project-category-title {
    margin-top: 0;
}