/* ==========================================================================
   1. VARIABLES & RESET (Redif Design System)
   ========================================================================== */
:root {
    --primary-cyan: #00E5FF;
    --primary-cyan-hover: #00C4D9;
    --bg-dark-header: #0F1A24;
    --text-dark-main: #14212B;
    --text-muted: #556877;
    --footer-blue-top: #559AD1;
    --footer-blue-bottom: #1B3F6E;
    --font-main: 'Montserrat', sans-serif;
    --max-width: 1200px;
    --transition-smooth: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
    font-family: var(--font-main);
    color: var(--text-dark-main);
    background-color: #ffffff;
    line-height: 1.5;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-smooth);
}

ul {
    list-style: none;
}

/* ==========================================================================
   2. GLOBAL COMPONENTS
   ========================================================================== */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    border: none;
    transition: var(--transition-smooth);
}

/* ==========================================================================
   3. SITE HEADER
   ========================================================================== */
.site-header {
    /* Tasarımdaki koyu lacivert/antrasit tonlarındaki geçişli arka plan */
    background: linear-gradient(135deg, #0F1A24 0%, #1e2f3e 100%);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

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

.logo img {
    height: 38px;
    width: auto;
}

    .btn-catalog-top {
        background-color: var(--primary-cyan);
        color: var(--bg-dark-header);
        padding: 10px 22px;
        gap: 10px;
    }

.btn-catalog-top:hover {
    background-color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 229, 255, 0.4);
}

/* ==========================================================================
   4. HERO SECTION (Güncellendi)
   ========================================================================== */
.hero-section {
    padding: 25px 0;
    position: relative;
    
    /* Arka Plan Görseli Eklentisi */
    background-color: #ffffff; /* Görsel yüklenene kadar görünecek zemin rengi */
    background-image: url('assets/img/hero-bg.jpg'); /* PSD'den kestiğiniz arka plan */
    background-size: cover; /* Görselin tüm alanı kaplamasını sağlar */
    background-position: center right; /* Odak noktasını sağdaki dalgalara verir */
    background-repeat: no-repeat; /* Görselin tekrar etmesini engeller */
}

.hero-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.hero-content {
    flex: 1;
    max-width: 540px;
}

.hero-content h1 {
    font-size: 54px;
    font-weight: 800;
    line-height: 1.15;
    color: var(--text-dark-main);
    margin-bottom: 24px;
    letter-spacing: -0.5px;
}

.hero-content p {
    font-size: 18px;
    font-weight: 500;
    color: var(--text-muted);
    line-height: 1.6;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: flex-end;
    position: relative;
}

.hero-image img {
    max-width: 100%;
    width: 480px;
    height: auto;
    z-index: 2;
}

.product-badge {
    position: absolute;
    top: 12%;
    left: 40px;
    font-size: 13px;
    color: var(--text-dark-main);
    line-height: 1.4;
    z-index: 3;
    border-left: 2px solid var(--text-dark-main);
    padding-left: 10px;
}

/* ==========================================================================
   5. INFINITE MARQUEE (SVG LOGO)
   ========================================================================== */
.marquee-section {
    background-color: #ffffff;
    padding: 30px 0; /* Logolara üstten/alttan nefes alma boşluğu */
    border-top: 1px solid #f0f0f0;
    border-bottom: 1px solid #f0f0f0;
    overflow: hidden;
}

.marquee-inner {
    display: flex;
    width: max-content;
}

.marquee-track {
    display: flex;
    align-items: center; /* Logoları dikey eksende kusursuz ortalar */
    animation: scrollMarquee 25s linear infinite;
}

.marquee-track img {
    height: 24px; /* Logonun boyutu. Tasarıma göre 20px-30px arası değiştirebilirsiniz */
    width: auto;
    margin-right: 7px; /* İki logo arasındaki boşluk mesafesi */
    
    /* ÖNEMLİ: Eğer SVG'yi orijinal parlak rengiyle kestiyseniz, 
       tasarımdaki o silik/filigran görünümü elde etmek için opacity kullanıyoruz. 
       Eğer zaten silik/açık renkle kaydettiyseniz bu satırı silebilirsiniz. */
    opacity: 0.25; 
}

@keyframes scrollMarquee {
    0% { transform: translate3d(0, 0, 0); }
    100% { transform: translate3d(-50%, 0, 0); }
}


/* ==========================================================================
   6. ABOUT SECTION
   ========================================================================== */
.about-section {
    padding: 100px 0;
    background-color: #ffffff;
}

.about-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 80px;
}

.about-logo-big {
    flex: 1;
    display: flex;
    justify-content: center;
}

.about-logo-big img {
    max-width: 320px;
    width: 100%;
    height: auto;
}

.about-content {
    flex: 1.2;
}

.about-content h2 {
    font-size: 34px;
    font-weight: 800;
    line-height: 1.25;
    color: var(--text-dark-main);
    margin-bottom: 16px;
}

.about-content h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark-main);
    margin-bottom: 24px;
}

.about-content p {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.75;
    margin-bottom: 36px;
}

.btn-catalog-about {
    background-color: var(--footer-blue-top);
    color: #ffffff;
    padding: 14px 28px;
    gap: 12px;
    box-shadow: 0 4px 14px rgba(85, 154, 209, 0.3);
}

.btn-catalog-about:hover {
    background-color: var(--footer-blue-bottom);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(27, 63, 110, 0.4);
}

/* ==========================================================================
   7. FOOTER
   ========================================================================== */
.site-footer {
    color: #ffffff;
}

.footer-top {
    background-color: var(--footer-blue-top);
    padding: 60px 0 50px 0;
    position: relative;
    overflow: hidden;
}

/* Watermark filigran logosu background */
.footer-top::after {
    content: '';
    position: absolute;
    bottom: -80px;
    right: -50px;
    width: 520px;
    height: 550px;
    background: url('assets/img/logo-symbol-watermark.svg') no-repeat center;
    background-size: contain;
    opacity: 0.08;
    pointer-events: none;
}

.footer-top-container {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.footer-logo img {
    height: 32px;
    width: auto;
    margin-bottom: 35px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 35px;
    width: 100%;
    max-width: 400px;
}

.contact-details li {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    font-size: 15px;
    font-weight: 500;
    line-height: 1.4;
}

.contact-details i {
    font-size: 18px;
    color: var(--primary-cyan);
    margin-top: 2px;
    width: 20px;
    text-align: center;
}

.contact-details a:hover {
    color: var(--bg-dark-header);
}

.social-medias {
    display: flex;
    gap: 12px;
}

.social-medias a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background-color: #ffffff;
    color: var(--footer-blue-top);
    border-radius: 50%;
    font-size: 16px;
}

.social-medias a:hover {
    background-color: var(--bg-dark-header);
    color: var(--primary-cyan);
    transform: translateY(-3px);
}

.footer-bottom {
    background-color: var(--footer-blue-bottom);
    padding: 24px 0;
    font-size: 13px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.8);
}

.footer-bottom-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.copyright-text {
    line-height: 1.5;
}

.legal-links {
    display: flex;
    gap: 24px;
}

.legal-links a:hover {
    color: var(--primary-cyan);
}

.redif-brand img {
    height: 25px;
    width: auto;
}

/* ==========================================================================
   8. RESPONSIVE MEDIA QUERIES (Mobile-First Adaptive)
   ========================================================================== */
@media (max-width: 1024px) {
    .hero-content h1 { font-size: 44px; }
    .about-container { gap: 40px; }
    .about-logo-big img { max-width: 260px; }
}

@media (max-width: 992px) {
    .hero-container {
        flex-direction: column;
        text-align: center;
        padding-top: 20px;
    }
    .hero-content {
        max-width: 100%;
    }
    .hero-image {
        justify-content: center;
        width: 100%;
    }

    .hero-section {
        background-position: center; /* Mobilde ortalayarak daha dengeli bir görünüm elde ederiz */
    }

    .product-badge {
        left: 10%;
        text-align: left;
    }
    .about-container {
        flex-direction: column;
        text-align: center;
    }
    .about-content {
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    .about-content p {
        text-align: center;
    }
}

@media (max-width: 768px) {
    .hero-section { padding: 50px 0; }
    .hero-content h1 { font-size: 36px; }
    .about-section { padding: 60px 0; }
    .about-content h2 { font-size: 28px; }
    
    .footer-bottom-container {
        flex-direction: column;
        text-align: center;
        gap: 24px;
    }
    .legal-links {
        justify-content: center;
        width: 100%;
    }
}

@media (max-width: 480px) {
    .site-header .btn-catalog-top span {
        display: none; /* Küçük ekranlarda butondaki text gizlenir, sadece ikon kalır */
    }
    .site-header .btn-catalog-top {
        padding: 10px 14px;
    }
    .hero-content h1 { font-size: 32px; }
    .product-badge {
        display: none; /* Çok dar ekranlarda badge gizlenir */
    }
    .legal-links {
        flex-direction: column;
        gap: 12px;
    }
}