/* Genel Ayarlar ve Yeni Renk Paleti */
:root {
    --primary-color: #0D2A4F; /* Logonun Koyu Laciverti */
    --secondary-color: #6C98B7; /* Logonun Açık Mavisi */
    --accent-color: #6C98B7; /* Vurgu rengi MAVİ */
    --dark-color: #0D2A4F; 
    --light-color: #F4F7F9; 
    --text-color: #333333; 
    --white-color: #ffffff;
    --font-family-primary: 'Poppins', sans-serif;
    --font-family-secondary: 'Montserrat', sans-serif;
}

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

body {
    font-family: var(--font-family-primary);
    color: var(--text-color);
    line-height: 1.7;
    background-color: var(--white-color);
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-secondary);
    color: var(--dark-color);
    font-weight: 600;
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: color 0.3s ease;
}

a:hover {
    color: var(--secondary-color);
}

ul {
    list-style: none;
}

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

.subtitle {
    color: var(--white-color);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 14px;
    display: block;
    margin-bottom: 10px;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title .subtitle, .section-subtitle {
    color: var(--secondary-color);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 14px;
    display: block;
    margin-bottom: 10px;
}

.section-title h2 {
    font-size: 36px;
    margin-bottom: 15px;
}

.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 5px;
    font-weight: 600;
    text-transform: uppercase;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

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

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

.btn-secondary {
    background-color: transparent;
    color: var(--white-color);
    border-color: var(--white-color);
    margin-left: 15px;
}

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

.btn-outline {
    background-color: transparent;
    color: var(--dark-color);
    border: 2px solid #ddd;
    margin-left: 15px;
}
.btn-outline:hover {
    background-color: var(--primary-color);
    color: var(--white-color);
    border-color: var(--primary-color);
}


/* Yükleniyor Animasyonu */
#loader {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: var(--white-color);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.5s, visibility 0.5s;
}

#loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 5px solid #f3f3f3;
    border-top: 5px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ===============================================
   YENİ HEADER STİLLERİ
=============================================== */

/* Üst Bilgi Barı (Top Bar) Stilleri */
.top-bar {
    background-color: var(--primary-color);
    color: #e0e5ea;
    padding: 10px 0;
    font-size: 14px;
    transition: all 0.3s ease;
}

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

.top-bar a {
    color: #e0e5ea;
    transition: color 0.3s ease;
    text-decoration: none;
}

.top-bar a:hover {
    color: var(--white-color);
}

.top-bar-left {
    display: flex;
    align-items: center;
    gap: 15px;
}

.top-bar-left .separator {
    color: #4a6a8a;
}

.top-bar-left i {
    color: var(--secondary-color);
    margin-right: 8px;
}

.top-bar-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

/* Ana Header Alanı */
#main-header {
    position: absolute;
    top: 45px; 
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: all 0.4s ease;
    padding: 20px 0;
}

/* Header'ın içindeki container (Başlangıç durumu - Kutulu) */
#main-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--white-color);
    padding: 15px 30px;
    border-radius: 10px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    transition: all 0.4s ease;
}

/* KAYDIRILMIŞ HEADER DURUMU */
#main-header.header-scrolled {
    position: fixed;
    top: 0;
    background-color: var(--white-color);
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    padding: 10px 0;
}

#main-header.header-scrolled .container {
    background-color: transparent;
    box-shadow: none;
    border-radius: 0;
    padding: 0;
}

/* Logo */
.logo-img {
    height: 50px;
    width: auto;
    transition: all 0.3s ease;
}
#main-header.header-scrolled .logo-img {
    height: 45px;
}

/* Ana Navigasyon */
.main-nav {
    flex-grow: 1; 
    display: flex;
    justify-content: flex-end; 
}

.main-nav > ul {
    display: flex;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
}

.main-nav li {
    margin: 0 15px;
}

.main-nav a {
    color: var(--dark-color);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 15px;
    position: relative;
    padding-bottom: 5px;
    white-space: nowrap; 
}

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

.main-nav a:hover::after,
.main-nav a.active::after {
    width: 100%;
}

/* Açılır Menü (Dropdown) Stilleri */
.main-nav .has-dropdown, .main-nav .has-submenu {
    position: relative;
}

.main-nav .has-dropdown > a i {
    font-size: 12px;
    margin-left: 5px;
    transition: transform 0.3s ease;
}

@media (min-width: 993px) {
    .main-nav .has-dropdown:hover > a i {
        transform: rotate(180deg);
    }
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--white-color);
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    list-style: none;
    padding: 10px 0;
    margin: 0;
    margin-top: 15px; 
    min-width: 240px;
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
    pointer-events: none;
}

.dropdown-menu::before {
    content: '';
    position: absolute;
    top: -25px;
    left: 0;
    width: 100%;
    height: 25px;
    background-color: transparent;
}

#main-header.header-scrolled .dropdown-menu::before {
    top: -15px;
    height: 15px;
}


.has-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
}

.dropdown-menu li {
    margin: 0;
}

.dropdown-menu a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px;
    color: var(--dark-color);
    font-weight: 500;
    font-size: 15px;
    white-space: nowrap;
    transition: all 0.3s ease;
}

.dropdown-menu a i {
    font-size: 12px;
}

.dropdown-menu a:hover {
    background-color: var(--light-color);
    color: var(--primary-color);
    padding-left: 25px;
}

/* İkinci Seviye Alt Menü Stilleri */
.sub-menu {
    position: absolute;
    top: -10px; 
    left: 100%;
    background-color: var(--white-color);
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    list-style: none;
    padding: 10px 0;
    margin: 0;
    min-width: 220px;
    opacity: 0;
    visibility: hidden;
    transform: translateX(10px);
    transition: all 0.3s ease;
    pointer-events: none;
}

.has-submenu:hover > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
    pointer-events: auto;
}


/* Header Sağ Taraf */
.header-right {
    display: flex;
    align-items: center;
    flex-shrink: 0; 
}

#mobile-menu-toggle {
    display: none;
    font-size: 24px;
    background: none;
    border: none;
    cursor: pointer;
    margin-left: 15px;
}


/* ===============================================
   DİĞER BÖLÜMLER
=============================================== */

/* Hero Alanı */
.hero {
    position: relative;
    padding: 60px 0;
    background-color: var(--light-color); 
    overflow: hidden;
    padding-top: 40px;
}

.hero-background-left {
    position: absolute;
    top: 0;
    left: 0;
    width: 50%;
    height: 100%;
    background-color: var(--primary-color);
    z-index: 1;
}

.hero-container {
    width: 85%; 
    height: 75vh;
    margin-left: auto; 
    margin-right: 5%; 
    position: relative;
    z-index: 2;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
}

.hero-slider {
    width: 100%;
    height: 100%; 
    position: relative;
    overflow: hidden;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 1s ease-in-out;
}

.hero-slide.active {
    opacity: 1;
    visibility: visible;
}

.hero-slide::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, rgba(13, 42, 79, 0.9) 0%, rgba(13, 42, 79, 0.6) 100%);
}

.hero-slide .container {
    position: relative;
    z-index: 2;
}

.hero-content {
    max-width: 600px;
    color: var(--white-color);
}

.hero-slide.active .hero-content {
    animation: fadeInUp 1.2s ease-in-out 0.5s forwards;
    opacity: 0;
}

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

.hero-content h1 {
    font-size: 52px;
    color: var(--white-color);
    margin-bottom: 20px;
    line-height: 1.2;
}
.hero-content p {
    font-size: 18px;
    margin-bottom: 30px;
    max-width: 500px;
}

.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 5;
    background-color: rgba(0, 0, 0, 0.2);
    color: var(--white-color);
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 0; 
    font-size: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.slider-arrow:hover {
    background-color: var(--accent-color);
}

.prev-btn {
    left: 0;
}

.next-btn {
    right: 0;
}

.hero-dots-container {
    position: absolute;
    bottom: 20px; 
    left: 50%; 
    transform: translateX(-50%);
    z-index: 3;
    background: var(--white-color);
    padding: 10px 20px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}
.hero-dots {
    display: flex;
    gap: 15px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: #ccc;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

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


/* Intro Services, About, News Bölümleri */
.intro-services,
.about-final,
.news {
    padding: 10px 0; 
    background-color: var(--white-color);
}

.intro-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 60px;
    align-items: center;
}

.intro-left h2 {
    font-size: 32px;
    line-height: 1.3;
    margin-bottom: 20px;
}

.intro-left p {
    margin-bottom: 30px;
}

.intro-video-box {
    position: relative;
    margin-bottom: 15px;
    border-radius: 10px;
    overflow: hidden;
}

.play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 70px;
    height: 70px;
    background-color: var(--accent-color);
    color: var(--white-color);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 24px;
    transition: all 0.3s ease;
}

.play-btn:hover {
    transform: translate(-50%, -50%) scale(1.1);
    background-color: var(--primary-color);
}

.video-caption {
    font-size: 14px;
    color: #777;
}

.intro-right {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0;
}

.service-box {
    position: relative;
    padding: 30px;
    overflow: hidden;
    cursor: pointer;
}

.service-box:nth-child(1), .service-box:nth-child(2) {
    border-bottom: 1px solid #e0e0e0;
}
.service-box:nth-child(1), .service-box:nth-child(3) {
    border-right: 1px solid #e0e0e0;
}

.service-icon {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 20px;
    transition: all 0.4s ease-out;
}

.service-content {
    transition: all 0.4s ease-out;
}

.service-content h3 {
    font-size: 20px;
    margin-bottom: 8px;
}

.service-content p {
    font-size: 15px;
    line-height: 1.6;
    margin-bottom: 15px;
}

.btn-details {
    display: inline-block;
    font-weight: 600;
    color: var(--primary-color);
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.4s ease-out;
}

.btn-details i {
    margin-left: 5px;
    transition: transform 0.3s ease;
}

.service-box:hover .service-icon {
    transform: translateY(-120%);
    opacity: 0;
}

.service-box:hover .service-content {
    transform: translateY(-40px);
}

.service-box:hover .btn-details {
    opacity: 1;
    transform: translateY(0);
}

.service-box:hover .btn-details:hover i {
    transform: translateX(5px);
}

/* About Final Bölümü */
.about-final {
    padding-bottom: 120px; 
    overflow: hidden; 
}

.about-final-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-final-content > * {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.about-final.in-view .about-final-content > * {
    opacity: 1;
    transform: translateX(0);
}

.about-final.in-view .section-subtitle { transition-delay: 0.1s; }
.about-final.in-view h2 { transition-delay: 0.2s; }
.about-final.in-view p { transition-delay: 0.3s; }
.about-final.in-view .features-list { transition-delay: 0.4s; }
.about-final.in-view .about-buttons { transition-delay: 0.5s; }


.about-final-content h2 {
    font-size: 36px;
    line-height: 1.3;
    margin-bottom: 20px;
}

.about-final-content p {
    margin-bottom: 30px;
}

.features-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px 30px;
    margin-bottom: 40px;
}

.features-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
}

.features-list li i {
    color: var(--accent-color);
}

.about-final-image {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
    transition-delay: 0.2s;
}

.about-final.in-view .about-final-image {
    opacity: 1;
    transform: translateX(0);
}

.about-final-image img {
    border-radius: 10px;
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

/* --- KATMANLI YAPI STİLLERİ --- */
.layered-section-wrapper {
    position: relative;
    background-color: var(--light-color);
    padding: 100px 0 0 0;
}

/* KATMAN 1: İstatistikler (Altta Kalan Bölüm) */
.stats {
    padding: 100px 0 200px 0;
    position: relative;
    background-image: url('../image/designer3.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.stats::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(13, 42, 79, 0.85);
    z-index: 0;
}

.stats .container {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--white-color);
}

.stats-title {
    font-size: 36px;
    line-height: 1.4;
    color: var(--white-color);
    max-width: 800px;
    margin: 0 auto 60px auto;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

.stat-item {
    padding: 20px;
}

.stat-icon {
    font-size: 32px;
    margin-bottom: 20px;
    color: var(--white-color);
    border: 2px solid var(--secondary-color);
    width: 80px;
    height: 80px;
    border-radius: 8px;
    display: inline-flex;
    justify-content: center;
    align-items: center;
}

.stat-icon i {
    transition: transform 0.7s ease;
}

.stat-item:hover .stat-icon i {
    transform: rotateY(360deg);
}

.stat-item h3 {
    font-size: 48px;
    font-weight: 700;
    color: var(--white-color);
}

.stat-item p {
    font-size: 16px;
    font-weight: 500;
    color: var(--white-color);
    opacity: 0.8;
}

.stats-footer p {
    font-size: 18px;
    opacity: 0.9;
}

.stats-footer a {
    color: var(--white-color);
    font-weight: 600;
    text-decoration: underline;
}

.stats-footer a:hover {
    color: var(--secondary-color);
}


/* KATMAN 2: Çözümlerimiz (Üste Binen Bölüm) */
.solutions {
    position: relative;
    z-index: 2;
    margin-top: -180px;
    padding-bottom: 100px;
}

.indented-wrapper {
    background-color: var(--white-color);
    padding: 80px;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    border: 1px solid #e9ecef;
}

.solutions-header {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
    align-items: center;
}

.solutions-header-left h2 {
    font-size: 36px;
}

.industry-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.industry-item {
    background-color: var(--white-color);
    border-radius: 8px;
    border: 1px solid #e9ecef;
    overflow: hidden;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    display: block;
    color: inherit;
    text-decoration: none;
}

.industry-item:hover {
    transform: translateY(-12px);
    box-shadow: 0 25px 50px rgba(0,0,0,0.12);
}

.industry-image {
    height: 220px;
    overflow: hidden;
}

.industry-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.industry-content {
    padding: 30px;
}

.industry-content-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 15px;
}

.industry-content h3 {
    font-size: 22px;
    margin: 0;
    color: var(--dark-color);
}

.industry-content p {
    font-size: 15px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 0;
}

.industry-link {
    color: var(--secondary-color);
    font-size: 18px;
    padding-left: 10px;
    transform: rotate(-45deg);
    transition: transform 0.3s ease, color 0.3s ease;
}

.industry-item:hover .industry-link {
    color: var(--primary-color);
    transform: rotate(0deg);
}

.solutions-footer {
    text-align: center;
    margin-top: 60px;
}

.btn-outline-dark {
    background-color: transparent;
    color: var(--dark-color);
    border: 2px solid #ddd;
    padding: 14px 32px;
    font-weight: 600;
    text-transform: uppercase;
    transition: all 0.3s ease;
    border-radius: 5px;
    display: inline-block;
}

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


/* Müşteri Yorumları Alanı (YENİ TASARIM) */
.testimonials {
    padding: 120px 0;
    background-color: var(--light-color);
    position: relative;
    overflow: hidden;
}

.testimonials::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(circle, #e0e5ea 1px, transparent 1px);
    background-size: 20px 20px;
    opacity: 0.5;
}

.testimonial-bg-img-1, .testimonial-bg-img-2, .testimonial-bg-img-3, .testimonial-bg-img-4 {
    position: absolute;
    border-radius: 50%;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}
.testimonial-bg-img-1 img, .testimonial-bg-img-2 img, .testimonial-bg-img-3 img, .testimonial-bg-img-4 img {
    border-radius: 50%;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.testimonial-bg-img-1 { width: 100px; height: 100px; top: 15%; left: 10%; }
.testimonial-bg-img-2 { width: 80px; height: 80px; bottom: 20%; left: 20%; }
.testimonial-bg-img-3 { width: 120px; height: 120px; top: 20%; right: 12%; }
.testimonial-bg-img-4 { width: 90px; height: 90px; bottom: 15%; right: 18%; }


.testimonial-slider-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    position: relative;
}

.testimonial-slider {
    max-width: 700px;
    width: 100%;
    position: relative;
    min-height: 280px;
    display: flex;
    align-items: center;
}

.testimonial-item {
    text-align: center;
    display: none;
    flex-direction: column;
    align-items: center;
    width: 100%;
    animation: fadeIn 0.5s ease-in-out;
}

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

.testimonial-item.active {
    display: flex;
}

.testimonial-author-main {
    width: 110px;
    height: 110px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid var(--white-color);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    margin-bottom: 25px;
    position: relative;
    z-index: 2;
}

.testimonial-item p {
    font-size: 18px;
    font-style: italic;
    color: #555;
    margin-top: 0;
    margin-bottom: 20px;
    line-height: 1.8;
}

.testimonial-rating {
    margin-bottom: 15px;
    color: #ffc107;
}

.author-info h4 {
    margin-bottom: 5px;
    font-size: 20px;
}
.author-info span {
    color: #777;
    font-weight: 500;
}

.testimonial-arrow {
    background-color: var(--white-color);
    color: var(--dark-color);
    border: 1px solid #e0e5ea;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 18px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}
.testimonial-arrow:hover {
    background-color: var(--primary-color);
    color: var(--white-color);
    border-color: var(--primary-color);
}


/* Haberler Alanı */
.news-header {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: end;
    margin-bottom: 60px;
}

.news-header-left h2 {
    font-size: 36px;
    margin: 0;
}

.news-header-right p {
    font-size: 16px;
    color: #666;
    line-height: 1.7;
    margin: 0;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.news-item {
    background: var(--white-color);
    box-shadow: 0 5px 25px rgba(0,0,0,0.07);
    border-radius: 10px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.news-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.news-item .news-image-link {
    display: block;
}

.news-item img {
    height: 250px;
    object-fit: cover;
}

.news-content {
    padding: 25px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}
.news-content .meta {
    font-size: 14px;
    color: #777;
    margin-bottom: 15px;
}
.news-content .meta span {
    margin-right: 15px;
}
.news-content h3 {
    font-size: 20px;
    margin-bottom: 15px;
    flex-grow: 1;
}

.news-content h3 a {
    color: var(--dark-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.news-content h3 a:hover {
    color: var(--primary-color);
}

.read-more {
    font-weight: 600;
    color: var(--primary-color);
    transition: color 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    text-decoration: none;
}

.read-more:hover {
    color: var(--secondary-color);
}

/* Markalar Bandı */
.brand-carousel {
    padding: 40px 0;
    background-color: var(--light-color);
    border-top: 1px solid #e0e5ea;
    border-bottom: 1px solid #e0e5ea;
    overflow: hidden;
    white-space: nowrap;
}

.carousel-track {
    display: inline-block;
    animation: scroll-left 40s linear infinite;
}

.carousel-track img {
    height: 40px;
    margin: 0 40px;
    filter: grayscale(100%);
    opacity: 0.6;
    transition: filter 0.3s ease, opacity 0.3s ease;
    display: inline-block;
    vertical-align: middle;
}

.carousel-track img:hover {
    filter: grayscale(0%);
    opacity: 1;
}

@keyframes scroll-left {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}


/* Footer Alanı */
footer {
    background-color: var(--dark-color);
    color: #ccc;
    padding-top: 80px;
}
.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 45px;
    padding-bottom: 60px;
    align-items: start;
}
.footer-col h3 {
    color: var(--white-color);
    font-size: 20px;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 10px;
}
.footer-col h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 40px;
    height: 2px;
    background-color: var(--secondary-color);
}

.social-media-footer {
    margin-top: 20px;
}

.social-media-footer a {
    display: inline-block;
    width: 40px;
    height: 40px;
    line-height: 40px;
    text-align: center;
    border-radius: 50%;
    background-color: rgba(255,255,255,0.1);
    color: #ccc;
    margin-right: 10px;
    font-size: 16px;
    transition: all 0.3s ease;
}
.social-media-footer a:hover {
    background-color: var(--secondary-color);
    color: var(--white-color);
}

.footer-bottom {
    background-color: rgba(0,0,0,0.2);
    padding: 25px 0;
    text-align: center;
    font-size: 14px;
}

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

.footer-col {
    max-width: 300px;
    word-break: break-word;
}

.footer-logo {
    max-width: 230px;
    margin-bottom: 20px;
    height: auto;
    filter: brightness(0) invert(1) grayscale(1);
}
.footer-about-text {
    color: #ccc;
    line-height: 1.8;
}

.footer-col ul.footer-links li {
    margin-bottom: 8px;
}

.footer-col ul.footer-links a {
    color: #ccc;
    transition: all 0.3s ease;
}
.footer-col ul.footer-links a:hover {
    color: var(--secondary-color);
    padding-left: 5px;
}


.footer-contact-info li {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    color: #ccc;
    line-height: 1.6;
    margin-bottom: 10px;
}
.footer-contact-info li:last-child {
    margin-bottom: 0;
}
.footer-contact-info li i {
    color: var(--secondary-color);
    margin-top: 5px;
    font-size: 16px;
}
.footer-contact-info a {
    color: #ccc;
    text-decoration: none;
    transition: all 0.3s ease;
}
.footer-contact-info a:hover {
    color: var(--secondary-color);
    text-decoration: none;
    padding-left: 5px;
}

/* Footer Son Yazılar */
.footer-recent-posts {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.footer-recent-posts li a {
    display: flex;
    align-items: center;
    gap: 15px;
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
}
.footer-recent-posts li a:hover .footer-post-title {
    color: var(--secondary-color);
}
.footer-recent-posts img {
    width: 70px;
    height: 70px;
    object-fit: cover;
    border-radius: 8px;
    flex-shrink: 0;
    border: 2px solid rgba(255,255,255,0.1);
}
.footer-post-info {
    display: flex;
    flex-direction: column;
}
.footer-post-title {
    font-weight: 500;
    color: #ccc;
    margin-bottom: 8px;
    line-height: 1.4;
    transition: color 0.3s ease;
}
.footer-post-date {
    font-size: 13px;
    color: #888;
}
.footer-post-date i {
    margin-right: 5px;
    color: var(--secondary-color);
}


/* ===============================================
   İÇ SAYFA STİLLERİ (İLETİŞİM, HAKKIMIZDA vb.)
=============================================== */

/* Genel Sayfa Başlığı */
.page-header {
    padding: 100px 0;
    text-align: center;
    position: relative;
    color: var(--white-color);
    background-size: cover;
    background-position: center;
}
.page-header::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background-color: rgba(13, 42, 79, 0.8);
}
.page-header .container {
    position: relative;
    z-index: 2;
}
.page-header h1 {
    font-size: 48px;
    color: var(--white-color);
    margin-bottom: 10px;
}
.page-header p {
    font-size: 18px;
    opacity: 0.9;
}

/* İletişim Sayfası */
.contact-section {
    padding: 60px 0;
}
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    align-items: flex-start;
}
.section-title-left {
    margin-bottom: 40px;
    text-align: left;
}
.info-box {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 30px;
}
.info-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background-color: var(--light-color);
    color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 22px;
    transition: all 0.3s ease;
}
.info-box:hover .info-icon {
    background-color: var(--primary-color);
    color: var(--white-color);
}
.info-content h4 {
    font-size: 20px;
    margin-bottom: 5px;
}
.info-content p {
    color: #666;
    line-height: 1.6;
}
.contact-form-wrapper {
    background-color: #fff;
    padding: 50px;
    border-radius: 10px;
    box-shadow: 0 15px 40px rgba(0,0,0,0.08);
}
.form-row {
    display: flex;
    gap: 20px;
}
.form-group {
    margin-bottom: 25px;
    width: 100%;
}
.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 15px;
}
.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
    font-family: var(--font-family-primary);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(13, 42, 79, 0.1);
}
.form-submit-btn {
    width: 100%;
    padding: 16px;
    font-size: 16px;
    cursor: pointer;
}
.contact-map iframe {
    width: 100%;
    height: 450px;
    border: none;
}

/* Hakkımızda Sayfası */
.section {
    padding: 80px 0;
}
.about-story-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.about-story-image img {
    border-radius: 10px;
    box-shadow: 0 15px 40px rgba(0,0,0,0.1);
}
.about-story-content h2 {
    font-size: 36px;
    margin-bottom: 20px;
}
.about-story-content p {
    margin-bottom: 15px;
    color: #555;
    line-height: 1.8;
}
.timeline-section {
    background-color: var(--light-color);
}
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}
.timeline::after {
    content: '';
    position: absolute;
    width: 4px;
    background-color: var(--secondary-color);
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -2px;
}
.timeline-item {
    padding: 10px 40px;
    position: relative;
    width: 50%;
}
.timeline-item:nth-child(odd) { left: 0; }
.timeline-item:nth-child(even) { left: 50%; }
.timeline-item .timeline-icon {
    position: absolute;
    width: 50px;
    height: 50px;
    right: -25px;
    top: 25px;
    background-color: var(--white-color);
    border: 4px solid var(--secondary-color);
    border-radius: 50%;
    z-index: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 20px;
    color: var(--primary-color);
}
.timeline-item:nth-child(even) .timeline-icon { left: -25px; }
.timeline-content {
    padding: 20px 30px;
    background-color: white;
    position: relative;
    border-radius: 8px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.07);
}
.timeline-item:nth-child(even) .timeline-content { text-align: right; }
.timeline-content h3 { font-size: 22px; color: var(--primary-color); }
.mission-vision-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}
.mv-box {
    text-align: center;
    padding: 40px;
    border: 1px solid #e0e5ea;
    border-radius: 10px;
    transition: all 0.3s ease;
}
.mv-box:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
    border-color: var(--accent-color);
}
.mv-icon {
    font-size: 48px;
    color: var(--accent-color);
    margin-bottom: 20px;
}
.mv-box h3 { font-size: 24px; margin-bottom: 15px; }

/* YENİ: Canlandırılmış Kurucular Bölümü */
.team-section {
    background-color: var(--light-color);
}
.team-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}
.team-member {
    background: var(--white-color);
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.07);
    overflow: hidden;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.4s ease;
    display: flex;
    flex-direction: column;
}
.team-member:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(13, 42, 79, 0.15);
}
.team-image-wrapper {
    padding: 20px;
    background: linear-gradient(45deg, var(--light-color), #fff);
}
.team-image {
    width: 150px;
    height: 150px;
    margin: 0 auto 20px auto;
    border-radius: 50%;
    border: 5px solid var(--white-color);
    box-shadow: 0 0 0 5px var(--secondary-color);
    overflow: hidden;
}
.team-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.team-info {
    padding: 20px 30px 30px 30px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}
.team-info h3 {
    font-size: 24px;
    margin-bottom: 5px;
}
.team-info span {
    color: var(--secondary-color);
    font-weight: 600;
    display: block;
    margin-bottom: 15px;
}
.team-info p {
    flex-grow: 1;
    margin-bottom: 20px;
}
.team-social {
    display: flex;
    justify-content: center;
    gap: 15px;
}
.team-social a {
    width: 40px;
    height: 40px;
    line-height: 40px;
    text-align: center;
    border-radius: 50%;
    background-color: var(--light-color);
    color: var(--primary-color);
    transition: all 0.3s ease;
}
.team-social a:hover {
    background-color: var(--primary-color);
    color: var(--white-color);
    transform: scale(1.1);
}

/* Çözümler Ana Sayfası */
.solutions-overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}
.solution-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 40px 30px;
    border: 1px solid #e0e5ea;
    border-radius: 10px;
    background-color: var(--white-color);
    transition: all 0.3s ease-in-out;
    color: var(--text-color);
}
.solution-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    border-color: var(--primary-color);
}
.solution-card-icon {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 25px;
    transition: all 0.3s ease-in-out;
}
.solution-card:hover .solution-card-icon {
    color: var(--secondary-color);
    transform: scale(1.1);
}
.solution-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
}
.solution-card p {
    flex-grow: 1;
    margin-bottom: 25px;
    color: #555;
}
.card-link {
    font-weight: 600;
    color: var(--secondary-color);
}

/* Çözüm Detay Sayfaları */
.solution-page-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 40px;
    padding: 80px 0;
}
.solution-sidebar {
    background-color: var(--light-color);
    padding: 30px;
    border-radius: 10px;
    height: fit-content;
    position: sticky;
    top: 120px;
}
.sidebar-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-color);
    padding-bottom: 15px;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--secondary-color);
}
.sidebar-nav li a {
    display: block;
    padding: 12px 15px;
    color: var(--text-color);
    font-weight: 500;
    border-radius: 5px;
    transition: all 0.3s ease;
    position: relative;
    left: 0;
}
.sidebar-nav li a:hover {
    background-color: var(--secondary-color);
    color: var(--white-color);
    left: 5px;
}
.sidebar-nav li a.active {
    background-color: var(--primary-color);
    color: var(--white-color);
    font-weight: 600;
}
.solution-content h2 {
    font-size: 36px;
    margin-bottom: 20px;
}
.solution-content .lead-text {
    font-size: 18px;
    color: #555;
    line-height: 1.7;
    margin-bottom: 30px;
}
.solution-content ul.feature-list {
    list-style: none;
    padding-left: 0;
    margin-top: 20px;
}
.solution-content ul.feature-list li {
    padding-left: 30px;
    position: relative;
    margin-bottom: 15px;
}
.solution-content ul.feature-list li::before {
    content: '\f058';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    top: 2px;
    color: var(--secondary-color);
}

/* Projelerimiz Sayfası */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}
.project-card {
    background: var(--white-color);
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: all 0.4s ease;
}
.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.12);
}
.project-image {
    position: relative;
    overflow: hidden;
}
.project-image img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform 0.4s ease;
}
.project-card:hover .project-image img {
    transform: scale(1.05);
}
.project-category {
    position: absolute;
    top: 20px;
    left: 20px;
    background-color: var(--primary-color);
    color: var(--white-color);
    padding: 5px 12px;
    border-radius: 5px;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
}
.project-content {
    padding: 25px 30px 30px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}
.project-content h3 {
    font-size: 22px;
    margin-bottom: 15px;
}
.project-content p {
    flex-grow: 1;
    margin-bottom: 25px;
    color: #555;
}


/* ===============================================
   MOBİL UYUM (RESPONSIVE)
=============================================== */
@media (max-width: 1200px) {
    .hero-container {
        width: 90%;
        margin-right: 2%;
    }
    .hero-background-left {
        width: 50%;
    }
    .hero-dots-container {
        left: 50%;
    }
    .testimonial-bg-img-1, .testimonial-bg-img-3 { display: none; }
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}


@media (max-width: 992px) {
    /* ### DÜZELTME: Mobil için sabit header ### */
    body {
        padding-top: 72px; /* Header yüksekliği kadar (yaklaşık) */
    }
    .top-bar { display: none; }
    
    #main-header {
        position: fixed;
        top: 0;
        left: 0;
        padding: 10px 0;
        background-color: var(--white-color);
        box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    }
    #main-header.header-scrolled {
        /* Bu sınıf artık mobilde bir etki yaratmayacak */
        padding: 10px 0;
    }
    #main-header .container {
        background: transparent;
        box-shadow: none;
        padding: 0;
    }
    .hero {
        padding-top: 0; /* body'e padding verdiğimiz için buna gerek kalmadı */
    }

    .hero-background-left, .hero-enquiry, .hero-dots-container {
        display: none; 
    }
    .hero-container {
        width: 100%;
        margin: 0;
        border-radius: 0;
        box-shadow: none;
    }
    .hero {
        padding: 0;
    }
    .container {
        width: 95%;
    }
    #main-header .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--white-color);
        flex-direction: column;
        padding: 20px 0;
        box-shadow: 0 5px 10px rgba(0,0,0,0.1);
        max-height: calc(100vh - 72px);
        overflow-y: auto;
    }
    #main-header .main-nav.active {
        display: flex;
    }
    #main-header .main-nav > ul {
        flex-direction: column;
        width: 100%;
    }
    #main-header .main-nav li {
        margin: 0;
    }
    #main-header .main-nav li > a {
        padding: 15px 20px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        border-bottom: 1px solid #f0f0f0;
    }
    #main-header .main-nav li:last-child > a {
        border-bottom: none;
    }
    #main-header .header-right {
        display: none;
    }
    #mobile-menu-toggle {
        display: block;
    }

    .main-nav .has-dropdown .dropdown-menu,
    .main-nav .has-submenu .sub-menu {
        position: static;
        display: none; 
        box-shadow: none;
        border-radius: 0;
        min-width: 100%;
        padding: 0;
        background-color: var(--light-color);
        transform: none;
        opacity: 1;
        visibility: visible;
        border-top: 1px solid #e5e5e5;
    }
    .main-nav .has-dropdown .dropdown-menu a {
        padding-left: 40px; 
    }
    .main-nav .has-submenu .sub-menu a {
        padding-left: 60px; 
    }

    .main-nav .has-dropdown.menu-open > .dropdown-menu,
    .main-nav .has-submenu.menu-open > .sub-menu {
        display: block; 
    }

    .main-nav .has-dropdown.menu-open > a,
    .main-nav .has-submenu.menu-open > a {
        background-color: var(--light-color);
    }

    .main-nav .has-dropdown.menu-open > a i,
    .main-nav .has-submenu.menu-open > a i {
        transform: rotate(90deg);
    }

    .intro-grid, .about-final-grid, .solutions-header, .industry-grid, .news-grid, .news-header, .contact-grid, .about-story-grid, .mission-vision-grid, .team-grid, .solution-page-layout {
        grid-template-columns: 1fr;
    }
    
    /* YENİ EKLENEN KURAL: Çözümler sayfasındaki sidebar'ı mobilde gizle */
    .solution-sidebar {
        display: none;
    }

    .news-header {
        text-align: center;
        gap: 20px;
        align-items: center;
    }
    .news-header-left h2 {
        font-size: 32px;
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .hero-content h1 {
        font-size: 42px;
    }
    .testimonial-bg-img-2, .testimonial-bg-img-4 { display: none; }

    /* Sayaç ve Müşteri Yorumlarını mobilde gizle */
    .layered-section-wrapper {
        padding: 0;
    }
    .stats,
    .testimonials {
        display: none;
    }
    .solutions {
        margin-top: 0;
        padding-top: 60px;
        padding-bottom: 60px;
    }
    .contact-info-wrapper, .section-title-left, .section-title-left .section-subtitle {
       text-align: center;
    }
    .info-box {
        justify-content: flex-start;
        text-align: left;
    }
}

@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 36px;
    }
    .hero-content p {
        font-size: 16px;
    }
    .intro-right {
        grid-template-columns: 1fr;
        gap: 0;
    }
    .service-box:nth-child(odd) {
        border-right: none;
        padding-right: 30px;
    }
    .service-box {
        border-bottom: 1px solid #e0e0e0;
        text-align: center; 
    }
    .service-box:last-child {
        border-bottom: none;
    }
    .features-list {
        grid-template-columns: 1fr;
    }
    .stats-grid, .footer-grid {
        grid-template-columns: 1fr;
    }
     .slider-arrow {
        width: 40px;
        height: 40px;
        font-size: 16px;
     }
     .prev-btn { left: 10px; }
     .next-btn { right: 10px; }

    .indented-wrapper {
        padding: 40px 30px;
    }

    .testimonial-slider-wrapper {
        flex-direction: column;
        gap: 30px;
    }
    .testimonial-arrow {
        position: static;
        transform: none;
        order: 2;
    }
    .testimonial-slider {
        order: 1;
    }
    .testimonial-prev {
        order: 0;
    }

    /* BÖLÜM BOŞLUKLARI */
    .intro-services,
    .about-final,
    .news,
    .section, .solution-page-layout {
        padding: 60px 0;
    }

    /* YAMAN YAZILIM HAKKINDA DÜZENLEMESİ */
    .about-final-content .section-subtitle,
    .about-final-content h2 {
        text-align: center;
    }
    .about-final-content p,
    .about-final-content .features-list {
        text-align: left;
    }
    .about-final-content .about-buttons {
        text-align: center;
    }

    /* BLOG BÖLÜMÜ DÜZENLEMESİ */
    .news-content {
        text-align: left;
    }
    
    /* İLETİŞİM & HAKKIMIZDA MOBİL */
    .page-header {
        padding: 60px 0;
    }
    .page-header h1 {
        font-size: 36px;
    }
    .form-row {
        flex-direction: column;
        gap: 0;
    }
    .contact-form-wrapper {
        padding: 30px;
    }
    .timeline::after {
        left: 25px;
    }
    .timeline-item {
        width: 100%;
        padding-left: 70px;
        padding-right: 15px;
    }
    .timeline-item:nth-child(even) {
        left: 0;
    }
    .timeline-item .timeline-icon,
    .timeline-item:nth-child(even) .timeline-icon {
        left: 0;
    }
    .timeline-item:nth-child(even) .timeline-content {
        text-align: left;
    }
}
/* ===============================================
   EN BAŞA DÖN BUTONU (SCROLL TO TOP)
=============================================== */

.scroll-to-top-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--white-color);
    border-radius: 8px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 20px;
    text-decoration: none;
    z-index: 999;
    opacity: 0; /* Başlangıçta görünmez */
    visibility: hidden; /* Başlangıçta gizli */
    transform: translateY(20px); /* Aşağıda başlasın */
    transition: opacity 0.4s ease, visibility 0.4s ease, transform 0.4s ease, background-color 0.3s ease;
}

.scroll-to-top-btn.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0); /* Görünür olduğunda yukarı çıksın */
}

.scroll-to-top-btn:hover {
    background-color: var(--secondary-color);
    color: var(--white-color);
}