/* =================================================================
   ARK YAPI - REFERANSLAR SAYFASI
   ================================================================= */

/* Bootstrap container override - Header ile hizalama için */
.referanslar-hero .container {
    max-width: 1920px;
    padding-left: 240px;
    padding-right: 240px;
}

/* --- HERO BÖLÜMÜ --- */
.referanslar-hero {
    position: relative;
    width: 100%;
    height: 507px;
    overflow: hidden;
    display: flex;
    align-items: center;
    margin-top: 0;
    max-width: 100vw;
}

/* Katman 1: Resim */
.hero-bg-image {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background-image: url('../../img/ark/referanslar-hero.webp');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 1;
}

/* Katman 2: Yeşil Overlay (Mix Blend Mode: Overlay) */
.hero-overlay-green {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: rgba(66, 95, 87, 0.57);
    mix-blend-mode: overlay;
    z-index: 2;
}

/* Katman 3: Siyah Gradient */
.hero-overlay-gradient {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: linear-gradient(90deg, rgba(31, 31, 31, 0.75) 0%, rgba(31, 31, 31, 0) 100%);
    z-index: 3;
}

/* Katman 4: Alt Çizgi */
.hero-bottom-border {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.24);
    z-index: 4;
    pointer-events: none;
}

/* Hero İçerik */
.hero-container {
    position: relative;
    z-index: 5;
    padding-top: 50px;
    max-width: 1920px;
    margin: 0 auto;
    padding-left: 240px;
    padding-right: 240px;
    width: 100%;
    box-sizing: border-box;
}

.hero-title {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    font-size: 54px;
    line-height: 68px;
    color: #FFFFFF;
    margin-bottom: 18px;
}

.hero-subtitle {
    font-family: 'Poppins', sans-serif;
    font-weight: 400;
    font-style: normal;
    font-size: 19px;
    line-height: 24px;
    letter-spacing: 0px;
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
}

/* --- REFERANSLAR BÖLÜMÜ --- */
.referanslar-section {
    padding: 100px 0;
    background: #FFFFFF;
    width: 100%;
    max-width: 100vw;
    overflow-x: hidden;
}

.referanslar-section .container {
    max-width: 1920px;
    margin: 0 auto;
    padding-left: 240px;
    padding-right: 240px;
    width: 100%;
}

.referanslar-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 70px;
    margin-bottom: 60px;
    margin-left: 0;
    margin-right: 0;
    width: 100%;
}

.referans-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    width: 100%;
}

.referans-card {
    width: 100%;
    height: 182px;
    background: #FFFFFF;
    box-shadow: 0px 0px 18.3px 0px #00000040;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
    padding: 20px;
}

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

.referans-card img {
    max-width: 70%;
    max-height: 60%;
    object-fit: contain;
    filter: grayscale(100%);
    opacity: 0.4;
    transition: all 0.3s;
}

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

.referans-name {
    font-family: 'Poppins', sans-serif;
    font-weight: 400;
    font-style: normal;
    font-size: 20px;
    line-height: 100%;
    letter-spacing: 0px;
    color: #000000;
    text-align: center;
}

.referanslar-cta {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    margin-top: 0;
    padding: 0;
}

.btn-referanslar {
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    padding: 16px 42px;
    gap: 10px;
    width: 220px;
    height: 56px;
    background: #425F57;
    border-radius: 4px;
    text-decoration: none;
    font-family: 'Poppins', sans-serif;
    font-weight: 400;
    font-size: 16px;
    line-height: 24px;
    color: #FFFFFF;
    transition: all 0.3s;
}

.btn-referanslar:hover {
    background: #354d46;
    color: #FFFFFF;
}

/* --- RESPONSIVE AYARLAR --- */

/* 1920px+ */
@media (min-width: 1920px) {
    .referanslar-hero .container,
    .referanslar-section .container {
        padding-left: 240px;
        padding-right: 240px;
    }
}

/* 1600px - 1919px */
@media (min-width: 1600px) and (max-width: 1919px) {
    .referanslar-hero .container,
    .referanslar-section .container {
        padding-left: 200px;
        padding-right: 200px;
    }
}

/* 1400px - 1599px */
@media (min-width: 1400px) and (max-width: 1599px) {
    .referanslar-hero .container,
    .referanslar-section .container {
        padding-left: 175px;
        padding-right: 175px;
    }
}

/* 1350px - 1550px (1470px MacBook için optimize) */
@media (min-width: 1350px) and (max-width: 1550px) {
    .referanslar-hero .container,
    .referanslar-section .container {
        padding-left: 60px;
        padding-right: 60px;
    }
    
    .hero-title {
        font-size: 46px;
        line-height: 60px;
    }
    
    .hero-subtitle {
        font-size: 20px !important;
        line-height: 24px;
    }
    
    .referanslar-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 30px;
    }
    
    .referans-card {
        height: 160px;
    }
}

/* 1200px - 1399px */
@media (min-width: 1200px) and (max-width: 1399px) {
    .referanslar-hero .container,
    .referanslar-section .container {
        padding-left: 150px;
        padding-right: 150px;
    }
    
    .referanslar-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 30px;
    }
}

/* 992px - 1199px */
@media (min-width: 992px) and (max-width: 1199px) {
    .referanslar-hero .container,
    .referanslar-section .container {
        padding-left: 100px;
        padding-right: 100px;
    }
    
    .referanslar-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 30px;
    }
    
    .referans-card {
        height: 150px;
    }
}

/* max-width: 991px */
@media (max-width: 991px) {
    .referanslar-hero {
        height: 400px;
    }
    
    .referanslar-hero .container,
    .referanslar-section .container {
        padding-left: 30px;
        padding-right: 30px;
    }
    
    .hero-title {
        font-size: 36px;
        line-height: 48px;
    }
    
    .hero-subtitle {
        font-size: 16px;
        line-height: 24px;
    }
    
    .referanslar-section {
        padding: 60px 0;
    }
    
    .referanslar-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
    
    .referans-card {
        height: 140px;
    }
    
    .referans-name {
        font-size: 18px;
    }
}

/* max-width: 576px */
@media (max-width: 576px) {
    .referanslar-hero {
        height: 350px;
    }
    
    .referanslar-hero .container,
    .referanslar-section .container {
        padding-left: 20px;
        padding-right: 20px;
    }
    
    .hero-title {
        font-size: 20px;
        line-height: 36px;
    }
    
    .hero-subtitle {
        font-size: 14px;
        line-height: 20px;
    }
    
    .referanslar-section {
        padding: 40px 0;
    }
    
    .referanslar-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .referans-card {
        height: 120px;
    }
    
    .referans-name {
        font-size: 16px;
    }
    
    .btn-referanslar {
        width: 100%;
        max-width: 220px;
    }
}