/* Genel değişkenler ve reset */
:root {
    --bg-dark: #0f172a;
    --bg-light: #f9fafb;
    --accent-zade-yag: #eab308;
    --accent-zade-vital: #22c55e;
    --text-main: #0f172a;
    --text-light: #f9fafb;
}

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

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background-color: var(--bg-light);
    color: var(--text-main);
}

/* Üst Menü */
header {
    width: 100%;
    padding: 12px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid #e5e7eb;
    position: sticky;
    top: 0;
    z-index: 10;
}

.brand-name {
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-size: 14px;
}

nav a {
    margin-left: 20px;
    text-decoration: none;
    color: #4b5563;
    font-size: 14px;
    font-weight: 500;
}

nav a:hover {
    color: #000;
}

/* Ana sayfa (split ekran) */
body.page-home {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

body.page-home main {
    flex: 1;
    display: flex;
    min-height: 100vh; /* Footer açılışta görünmesin */
}

.split {
    flex: 1;
    position: relative;
    padding: 40px 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: flex 0.4s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.split::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top, rgba(255,255,255,0.12), transparent 55%);
    opacity: 0.6;
    pointer-events: none;
}

.split-content {
    position: relative;
    max-width: 380px;
    text-align: center;
}

.split h2 {
    font-size: 28px;
    margin-bottom: 10px;
    color: var(--text-light);
}

.split p {
    font-size: 14px;
    margin-bottom: 18px;
    line-height: 1.6;
    color: var(--text-light);
}

.tagline {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    margin-bottom: 8px;
    opacity: 0.9;
    color: var(--text-light);
}

.btn-primary {
    display: inline-block;
    padding: 10px 22px;
    border-radius: 999px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    border: 1px solid rgba(255,255,255,0.3);
    background: rgba(15,23,42,0.82);
    color: #f9fafb;
}

.btn-primary.light {
    background: #f9fafb;
    color: #111827;
    border-color: rgba(15,23,42,0.1);
}

.btn-primary:hover {
    transform: translateY(-1px);
}

.split-left {
    background: linear-gradient(135deg, #111827, #1f2937);
}

.split-left .accent-dot {
    background-color: var(--accent-zade-yag);
}

.split-right {
    background: linear-gradient(135deg, #065f46, #22c55e);
}

.split-right .accent-dot {
    background-color: var(--accent-zade-vital);
}

.accent-dot {
    width: 10px;
    height: 10px;
    border-radius: 999px;
    display: inline-block;
    margin-right: 6px;
    background-color: #fff;
}

.split:hover {
    flex: 1.05;
    box-shadow: 0 18px 45px rgba(15,23,42,0.35);
    z-index: 2;
}

.split:not(:hover) {
    flex: 0.95;
}

/* Genel içerik yapısı (Hakkımızda / İletişim) */
body.page-about main,
body.page-contact main {
    max-width: 1080px;
    margin: 40px auto 64px;
    padding: 0 16px;
}

/* Kurumsal içerik blokları */
.content-block {
    background-color: #ffffff;
    border-radius: 16px;
    padding: 24px 24px;
    border: 1px solid #e5e7eb;
    box-shadow: 0 10px 25px rgba(15, 23, 42, 0.04);
    margin-bottom: 24px;
}

.content-block h1 {
    font-size: 28px;
    margin-bottom: 16px;
}

.content-block h2 {
    font-size: 20px;
    margin-bottom: 10px;
}

.content-block p {
    line-height: 1.7;
    font-size: 15px;
    margin-bottom: 14px;
    color: #374151;
}

/* Hakkımızda hero alanı */
.hero-section {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 24px;
    align-items: center;
    margin-bottom: 24px;
}

.hero-image {
    width: 100%;
    border-radius: 16px;
    object-fit: cover;
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.35);
}

.hero-text h1 {
    font-size: 30px;
    margin-bottom: 14px;
}

.hero-text p {
    font-size: 15px;
    line-height: 1.7;
    color: #374151;
}

/* Değerler listesi */
.values-list {
    list-style: none;
    margin-top: 8px;
}

.values-list li {
    margin-bottom: 10px;
    font-size: 14px;
    color: #374151;
}

/* İletişim sayfası */
.contact-grid {
    margin-top: 16px;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.contact-item h3 {
    font-size: 18px;
    margin-bottom: 6px;
}

.contact-item p {
    font-size: 14px;
    color: #374151;
}

/* Footer */
footer {
    border-top: 1px solid #e5e7eb;
    padding: 16px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
    background-color: #fff;
}

.holding {
    display: flex;
    align-items: center;
    gap: 8px;
}

.holding-logo img {
    width: auto;
    height: 45px;
    display: block;
}

a {
    color: #16a34a;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 900px) {
    .hero-section {
        grid-template-columns: 1fr;
    }
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    nav a {
        margin-left: 0;
        margin-right: 12px;
    }

    body.page-home main {
        flex-direction: column;
        min-height: 100vh;
    }

    .split {
        min-height: 220px;
    }

    .split:hover {
        flex: 1;
    }
}


/* Wide banner images for Hakkımızda ve İletişim */
.banner-hero {
    width: 100%;
    max-width: 1080px;
    margin: 32px auto 24px;
    padding: 0 16px;
}

.banner-hero img {
    width: 100%;
    height: auto;
    border-radius: 18px;
    object-fit: cover;
    box-shadow: 0 18px 40px rgba(15,23,42,0.30);
}

/* Hakkımızda içeriği alt blok */
.about-main {
    max-width: 1080px;
    margin: 0 auto 64px;
    padding: 0 16px;
}

/* İletişim ikon kartları */
.contact-main {
    max-width: 1080px;
    margin: 0 auto 64px;
    padding: 0 16px;
}

.contact-channel-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
    margin-top: 24px;
}

@media (max-width: 900px) {
    .contact-channel-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 600px) {
    .contact-channel-grid {
        grid-template-columns: 1fr;
    }
}

.contact-card {
    background-color: #ffffff;
    border-radius: 16px;
    padding: 18px 16px;
    border: 1px solid #e5e7eb;
    box-shadow: 0 10px 25px rgba(15, 23, 42, 0.04);
    text-align: center;
}

.contact-card h2 {
    font-size: 16px;
    margin-bottom: 6px;
}

.contact-card p {
    font-size: 14px;
    color: #4b5563;
}

.contact-icon {
    width: 42px;
    height: 42px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 8px;
    font-size: 20px;
    background: #f3f4f6;
}

/* section titles inside about/contact main */
.section-title {
    font-size: 24px;
    margin-bottom: 12px;
}

.section-intro {
    font-size: 15px;
    color: #4b5563;
    margin-bottom: 18px;
}


/* Marka logoları */
.brand-logo {
    margin-bottom: 12px;
}
.brand-logo img {
    max-width: 180px;
    height: auto;
}

/* Arka plana görsel ekleme */
.split-left {
    position: relative;
    background: url('zade-anasayfa.png') center center / cover no-repeat;
}

.split-left::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.45); /* opacity etkisi */
    z-index: 1;
}

.split-right {
    position: relative;
    background: url('zadevital-anasayfa.jpg') center center / cover no-repeat;
}

.split-right::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.45); /* opacity etkisi */
    z-index: 1;
}

/* Bu önemli: metinlerin overlay'in üstünde kalması için */
.split-content {
    position: relative;
    z-index: 2;
}

/* --- İLETİŞİM SAYFASI OPTİMAL YÜKSEKLİK AYARLARI --- */

.contact-hero {
    padding: 90px 0 70px; /* orta seviyede uzun */
}

@media (max-width: 991px) {
    .contact-hero {
        padding: 70px 0 50px;
    }
}

/* Hakkımızda: Görsel ile metin arasındaki boşluğu düzelt */
.mt-n120 {
    margin-top: -60px !important; /* Eskisi: -120px, çok yukarı çekiyordu → yarıya indirdik */
}

/* Küçük ekranlarda görsel kesinlikle metinle çakışmasın */
@media (max-width: 991px) {
    .mt-n120 {
        margin-top: -20px !important;
    }
}

@media (max-width: 768px) {
    .mt-n120,
    .mt-sm-n60 {
        margin-top: 0 !important; /* Mobilde tamamen normal seviyeye alınır */
    }
}

/* Görsel ile metin arasında ideal boşluk */
.about-text-block {
    margin-top: 40px;
}

/* Mobilde boşluğu biraz daha artır (ferah görünüm için) */
@media (max-width: 768px) {
    .about-text-block {
        margin-top: 30px;
    }
}
/* Brand tıklanabilir */
.brand-link {
    text-decoration: none;
    color: inherit;
}

/* Menü ayırıcı çizgi */
.nav-divider {
    display: inline-block;
    width: 1px;
    height: 18px;
    background-color: rgba(0,0,0,0.4);
    margin: 0 -10px 0 10px;
    vertical-align: middle;
}

/* Dil seçimi EN */
.lang-switch {
    font-weight: 600;
    opacity: 0.9;
    transition: 0.2s;
}

.lang-switch:hover {
    opacity: 1;
}

/* Mobilde çizgi kaymasın: span'ı gizle, çizgiyi EN'e al */
@media (max-width: 768px) {
    .nav-divider {
        display: none;
    }

    .lang-switch {
        border-left: 1px solid rgba(0,0,0,0.4);
        padding-left: 10px;
        margin-left: 10px;
    }
}
.main-logo {
    max-height: 30px;     /* istediğine göre 28–48px arası ideal */
    width: auto;
    object-fit: contain;
    display: block;
}
@media (max-width: 768px) {
    .main-logo {
        height: 25px;
    }
}
header {
    display: flex;
    align-items: center; /* LOGOYU DİKEY ORTALAR */
    justify-content: space-between;
    padding: 10px 20px;
}
/* Gradient overlay yine de dursun diye ::before kullanılmaya devam edebilir */