/* ==================== 1. TEMEL AYARLAR & PREMİUM FONT ==================== */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
    --primary: #2C3E50;      /* Antrasit */
    --secondary: #00A8FF;    /* NEON MAVİ */
    --glass-bg: rgba(255, 255, 255, 0.95);
    --text-dark: #333333;
    --mobile-overlay: #ffffff;
}

body {
    font-family: 'Outfit', sans-serif;
    background-color: #FDFDFD;
    color: var(--text-dark);
    margin: 0;
    padding: 0;
    overflow-x: hidden; /* Sağa sola kaymayı engeller */
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

h1, h2, h3, h4, h5, h6, .btn, .nav-link, p, span { 
    font-family: 'Outfit', sans-serif; 
}

a { text-decoration: none; }
ul { padding: 0; margin: 0; list-style: none; }
img { max-width: 100%; height: auto; } /* Görsellerin taşmasını engeller */

/* ==================== 2. PARALLAX & NAVBAR ==================== */
.parallax-bg {
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

.navbar {
    background: var(--glass-bg);
    padding: 15px 0;
    backdrop-filter: blur(20px);
    box-shadow: 0 4px 30px rgba(0,0,0,0.04);
    border-bottom: 1px solid rgba(0,0,0,0.03);
    transition: all 0.4s ease;
    position: sticky;
    top: 0;
    z-index: 1020;
}
.navbar-brand img { height: 60px; width: auto; transition: 0.3s; }
.navbar-brand:hover img { transform: scale(1.03); }

/* Linkler */
.nav-link {
    color: var(--primary) !important;
    font-weight: 600; font-size: 15px; text-transform: uppercase;
    margin: 0 15px; position: relative; white-space: nowrap; letter-spacing: 0.5px;
    transition: color 0.3s ease;
}
.nav-link:hover { color: var(--secondary) !important; }
.nav-link::after {
    content: ''; position: absolute; width: 0; height: 2px;
    bottom: -5px; left: 0; background-color: var(--secondary);
    transition: width 0.3s ease; box-shadow: 0 0 10px rgba(0, 168, 255, 0.5);
}
.nav-link:hover::after { width: 100%; }

.btn-hesapla {
    background: var(--primary); color: white !important; padding: 12px 30px;
    border-radius: 4px; font-size: 14px; font-weight: 700; text-transform: uppercase;
    letter-spacing: 1px; border: 1px solid var(--primary); transition: all 0.3s;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}
.btn-hesapla:hover {
    background: var(--secondary); border-color: var(--secondary); color: white !important;
    transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0, 168, 255, 0.3);
}

/* --- HAMBURGER BUTON DÜZELTMESİ --- */
.navbar-toggler { 
    border: none; padding: 0; outline: none !important; width: 35px; height: 25px; 
    position: relative; 
    /* Z-INDEX ÇOK ÖNEMLİ: Menü overlay'inin üstünde kalsın diye yüksek verdik */
    z-index: 10000 !important; 
    -webkit-tap-highlight-color: transparent;
}
.navbar-toggler:focus { box-shadow: none; }

.toggler-line { 
    width: 100%; height: 3px; background: var(--primary); 
    position: absolute; right: 0; transition: 0.3s; border-radius: 4px; 
}
.toggler-line:nth-child(1) { top: 0; }
.toggler-line:nth-child(2) { top: 50%; transform: translateY(-50%); width: 70%; }
.toggler-line:nth-child(3) { bottom: 0; }

/* Menü Açıkken X Olma Efekti */
.navbar-toggler[aria-expanded="true"] .toggler-line:nth-child(1) { 
    top: 50%; transform: translateY(-50%) rotate(45deg); width: 100%; background-color: #222; 
}
.navbar-toggler[aria-expanded="true"] .toggler-line:nth-child(2) { 
    opacity: 0; width: 0; 
}
.navbar-toggler[aria-expanded="true"] .toggler-line:nth-child(3) { 
    bottom: 50%; transform: translateY(50%) rotate(-45deg); width: 100%; background-color: #222; 
}

/* --- MOBİL MENÜ KAPLAYICISI --- */
@media (max-width: 991px) {
    .navbar-collapse {
        position: fixed; top: 0; left: 0; width: 100vw; height: 100vh;
        background-color: var(--mobile-overlay); 
        z-index: 9990; /* Butondan (10000) düşük olmalı ki buton tıklanabilsin */
        display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center;
        opacity: 0; visibility: hidden; transition: all 0.3s cubic-bezier(0.215, 0.610, 0.355, 1);
        padding-bottom: 60px; /* Alttan biraz boşluk */
    }
    .navbar-collapse.show { opacity: 1; visibility: visible; }
    
    .navbar-nav { width: 100%; margin: 0 !important; padding: 0; display: flex; flex-direction: column; align-items: center; }
    
    .nav-item { 
        width: 100%; margin: 15px 0; opacity: 0; transform: translateY(20px); 
        transition: 0.3s ease; display: flex; justify-content: center; 
    }
    .nav-link { font-size: 22px; font-weight: 800; color: #222 !important; display: inline-block; }
    .btn-hesapla { margin-top: 25px; display: inline-block; width: auto; font-size: 16px; padding: 15px 40px; }

    /* Animasyonlar */
    .navbar-collapse.show .nav-item:nth-child(1) { transition-delay: 0.05s; opacity: 1; transform: translateY(0); }
    .navbar-collapse.show .nav-item:nth-child(2) { transition-delay: 0.10s; opacity: 1; transform: translateY(0); }
    .navbar-collapse.show .nav-item:nth-child(3) { transition-delay: 0.15s; opacity: 1; transform: translateY(0); }
    .navbar-collapse.show .nav-item:nth-child(4) { transition-delay: 0.20s; opacity: 1; transform: translateY(0); }
    .navbar-collapse.show .nav-item:nth-child(5) { transition-delay: 0.25s; opacity: 1; transform: translateY(0); }
    .navbar-collapse.show .nav-item:nth-child(6) { transition-delay: 0.30s; opacity: 1; transform: translateY(0); }
    .navbar-collapse.show .btn-hesapla-container { transition-delay: 0.35s; opacity: 1; transform: translateY(0); }
}

/* ==================== 3. SLIDER ==================== */
#heroSlider .carousel-item { height: 90vh; min-height: 600px; background-color: #000; position: relative; }
#heroSlider .carousel-item img { height: 100%; width: 100%; object-fit: cover; }
#heroSlider .carousel-item::after {
    content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0.2) 60%, rgba(0,0,0,0.1) 100%); z-index: 1;
}
.carousel-caption { z-index: 2; bottom: 20%; left: 8%; text-align: left; max-width: 900px; }
.hero-title { font-weight: 800; font-size: 4rem; color: #fff; margin-bottom: 20px; opacity: 0; transform: translateX(-100px); transition: 1s; line-height: 1.1; }
.hero-desc { font-size: 1.3rem; font-weight: 300; color: rgba(255,255,255,0.9); margin-bottom: 30px; opacity: 0; transform: translateY(50px); transition: 1s; transition-delay: 0.3s; }
.carousel-item.active .hero-title { opacity: 1; transform: translateX(0); }
.carousel-item.active .hero-desc { opacity: 1; transform: translateY(0); }

/* ==================== 4. HESAPLAYICI ==================== */
.calculator-section { padding: 100px 0; background: #f8f9fa; border-bottom: 1px solid #eee; }
.calc-glass-card {
    background: #fff; border-radius: 16px; padding: 60px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.08); border: 1px solid rgba(0,0,0,0.03); position: relative; overflow: hidden;
}
.calc-glass-card::before { content: ''; position: absolute; left: 0; top: 0; height: 100%; width: 6px; background: var(--secondary); }
.price-display { background: var(--primary); color: white; padding: 40px; border-radius: 12px; text-align: center; margin-top: 20px; box-shadow: 0 10px 30px rgba(44, 62, 80, 0.3); }
.price-display h4 { color: var(--secondary); font-size: 3rem; margin: 0; font-weight: 700; }
.form-control, .form-select { padding: 16px; border: 1px solid #e0e0e0; background-color: #fafafa; border-radius: 8px; font-size: 1rem; }
.form-control:focus, .form-select:focus { background-color: #fff; border-color: var(--secondary); box-shadow: 0 0 0 4px rgba(0,168,255,0.1); }

/* ==================== 5. BÖLÜMLER ==================== */
.section-title-wrap { margin-bottom: 60px; }
.section-subtitle { font-size: 0.9rem; font-weight: 700; color: var(--secondary); text-transform: uppercase; letter-spacing: 2px; display: block; margin-bottom: 10px; }
.section-title { font-size: 3rem; font-weight: 800; color: var(--primary); line-height: 1.2; margin: 0; }

.masonry-section { padding: 120px 0; background: #fff; }
.masonry-grid { column-count: 3; column-gap: 25px; }
.masonry-item { break-inside: avoid; margin-bottom: 25px; border-radius: 12px; overflow: hidden; position: relative; box-shadow: 0 10px 30px rgba(0,0,0,0.1); }
.masonry-item img { width: 100%; height: auto; display: block; transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94); }
.masonry-item:hover img { transform: scale(1.1); }

.plise-premium-section { padding: 120px 0; background-color: #fff; position: relative; overflow: hidden; }
.plise-bg-shape {
    position: absolute; top: -10%; right: -10%; width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(0,168,255,0.05) 0%, transparent 70%); z-index: 0;
}
.plise-list li { margin-bottom: 20px; font-size: 1.2rem; display: flex; align-items: center; font-weight: 500; }
.plise-list i { color: var(--secondary); margin-right: 20px; font-size: 1.3rem; background: rgba(0,168,255,0.1); padding: 10px; border-radius: 50%; }

/* ==================== 6. FOOTER ==================== */
footer {
    background-color: #ffffff; color: var(--primary); padding-top: 100px; padding-bottom: 0;
    font-size: 1rem; position: relative; border-top: 1px solid #e5e5e5; box-shadow: 0 -10px 60px rgba(0,0,0,0.03); z-index: 10;
}
.footer-logo-area { display: flex; flex-direction: column; justify-content: center; height: 100%; padding-right: 40px; border-right: 1px solid #eee; }
.footer-logo-area img { max-width: 240px; height: auto; display: block; margin-bottom: 20px; }
.footer-heading {
    color: var(--primary); font-size: 1.2rem; font-weight: 800; margin-bottom: 30px;
    letter-spacing: 1px; text-transform: uppercase; position: relative; display: inline-block;
}
.footer-heading::after { content: ''; position: absolute; bottom: -10px; left: 0; width: 50px; height: 4px; background: var(--secondary); }
.footer-links li { margin-bottom: 12px; }
.footer-links a { color: #555; text-decoration: none; transition: all 0.3s ease; display: flex; align-items: center; font-weight: 600; }
.footer-links i { font-size: 12px; margin-right: 10px; color: var(--secondary); transition: 0.3s; }
.footer-links a:hover { color: var(--secondary); transform: translateX(8px); }
.contact-row { display: flex; align-items: flex-start; margin-bottom: 25px; color: #555; }
.contact-row i { color: var(--primary); font-size: 1.3rem; margin-right: 15px; margin-top: 2px; }
.contact-row span { font-weight: 600; font-size: 1.05rem; }
.social-btn {
    display: inline-flex; width: 50px; height: 50px; border-radius: 50%; background: #f0f2f5; color: var(--primary);
    align-items: center; justify-content: center; margin-right: 10px; transition: all 0.3s ease; font-size: 1.3rem;
}
.social-btn:hover { background: var(--secondary); color: #fff; transform: translateY(-5px); box-shadow: 0 10px 20px rgba(0, 168, 255, 0.3); }
.footer-bottom { background: #f8f9fa; padding: 30px 0; margin-top: 70px; border-top: 1px solid #eee; font-size: 0.95rem; color: #666; font-weight: 500; }
.footer-bottom p { margin: 0; }

/* ==================== 7. ULTRA PREMIUM İÇ SAYFALAR ==================== */

/* --- MODERN ASİMETRİK HEADER --- */
.premium-header {
    padding: 150px 0 100px;
    background: #fff;
    position: relative;
    overflow: hidden;
}
.premium-header-bg-text {
    position: absolute;
    top: 50%; left: 50%; transform: translate(-50%, -50%);
    font-size: 15vw; font-weight: 900; color: rgba(0,0,0,0.03);
    white-space: nowrap; z-index: 0; pointer-events: none; text-transform: uppercase;
}
.ph-content { position: relative; z-index: 2; }
.ph-subtitle { color: var(--secondary); font-weight: 700; letter-spacing: 3px; text-transform: uppercase; display: block; margin-bottom: 20px; }
.ph-title { font-size: 4.5rem; font-weight: 800; line-height: 1.1; color: var(--primary); }
.ph-image-box {
    position: relative; z-index: 1;
    box-shadow: 30px 30px 0px rgba(0, 168, 255, 0.1); 
}
.ph-image-box img { width: 100%; height: auto; display: block; }

/* --- KATMANLI HİKAYE BÖLÜMÜ --- */
.layered-about { padding: 100px 0; position: relative; }
.about-overlap-container { position: relative; height: 600px; }
.about-img-tall {
    position: absolute; top: 0; left: 0; width: 70%; height: 85%;
    object-fit: cover; z-index: 1; box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}
.about-img-wide {
    position: absolute; bottom: 0; right: 0; width: 60%; height: 50%;
    object-fit: cover; z-index: 2; box-shadow: 0 20px 40px rgba(0,0,0,0.15);
    border: 10px solid #fff;
}
.about-text-overlap {
    background: #fff; padding: 60px; box-shadow: 0 30px 60px rgba(0,0,0,0.1);
    position: relative; z-index: 3; margin-left: -100px; margin-top: 100px;
}

/* --- DARK MODE KURUCULAR ALANI (VIP) --- */
.dark-founders-section {
    background: var(--primary); 
    padding: 120px 0; color: #fff; position: relative;
}
.founder-card-premium { margin-bottom: 50px; position: relative; group: group; }
.founder-img-premium {
    height: 450px; overflow: hidden; position: relative; margin-bottom: 30px;
}
.founder-img-premium img {
    width: 100%; height: 100%; object-fit: cover;
    filter: grayscale(100%); 
    transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.founder-card-premium:hover .founder-img-premium img { filter: grayscale(0%); transform: scale(1.05); }

.founder-info-premium h4 { font-size: 2rem; font-weight: 700; margin-bottom: 5px; }
.founder-role-premium { color: var(--secondary); font-weight: 600; letter-spacing: 1px; text-transform: uppercase; display: block; margin-bottom: 20px; }
.founder-line { width: 50px; height: 3px; background: rgba(255,255,255,0.2); transition: 0.6s; }
.founder-card-premium:hover .founder-line { width: 100px; background: var(--secondary); }


/* --- MODERN AKORDEON --- */
.premium-accordion .accordion-item {
    border: none; border-bottom: 1px solid #eee; box-shadow: none;
}
.premium-accordion .accordion-button {
    background: transparent; color: var(--primary); font-size: 1.8rem; font-weight: 800;
    padding: 30px 0; box-shadow: none;
}
.premium-accordion .accordion-button:not(.collapsed) { color: var(--secondary); background: transparent; }
.premium-accordion .accordion-body {
    padding: 0 0 40px 0; font-size: 1.1rem; color: #666; line-height: 1.8;
}

/* --- İSTATİSTİK ŞERİDİ --- */
.stats-strip-modern { padding: 80px 0; border-top: 1px solid #eee; border-bottom: 1px solid #eee; }
.stat-item-modern { text-align: center; }
.stat-num-mod { font-size: 4rem; font-weight: 800; color: var(--primary); display: block; line-height: 1; }
.stat-label-mod { font-size: 1rem; font-weight: 600; color: #999; text-transform: uppercase; letter-spacing: 2px; }


/* ==================== 8. PLİSE PERDE & GALERİ (DİĞERLERİ) ==================== */

/* Ürün Vitrini */
.product-showcase { padding: 100px 0; }
.showcase-text h3 { font-size: 2.5rem; font-weight: 800; color: var(--primary); margin-bottom: 20px; }
.showcase-text p { font-size: 1.1rem; color: #666; line-height: 1.8; margin-bottom: 30px; }
.showcase-img { 
    border-radius: 20px; 
    box-shadow: 0 20px 50px rgba(0,0,0,0.1); 
    transition: transform 0.5s ease; 
    width: 100%;
}
.showcase-row:hover .showcase-img { transform: scale(1.02); }

/* Özellik Kartları */
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 30px; margin-top: 50px; }
.feature-card {
    background: #fff; padding: 40px 30px; border-radius: 15px; text-align: center;
    border: 1px solid #eee; transition: all 0.3s ease;
}
.feature-card:hover { 
    transform: translateY(-10px); 
    box-shadow: 0 15px 40px rgba(0, 168, 255, 0.1); 
    border-color: var(--secondary);
}
.feature-icon { font-size: 3rem; color: var(--secondary); margin-bottom: 20px; }
.feature-title { font-size: 1.2rem; font-weight: 700; margin-bottom: 10px; color: var(--primary); }

/* Renk Seçenekleri */
.color-swatch-wrapper { display: flex; gap: 15px; flex-wrap: wrap; margin-top: 20px; }
.color-swatch { 
    width: 50px; height: 50px; border-radius: 50%; border: 3px solid #fff; 
    box-shadow: 0 5px 15px rgba(0,0,0,0.1); cursor: pointer; transition: 0.3s;
}
.color-swatch:hover { transform: scale(1.2); box-shadow: 0 10px 20px rgba(0,0,0,0.15); }

/* Sıkça Sorulan Sorular */
.faq-header {
    background: #f8f9fa; padding: 20px; border-radius: 10px; cursor: pointer;
    font-weight: 700; display: flex; justify-content: space-between; align-items: center;
    transition: 0.3s;
}
.faq-header:hover { background: #fff; box-shadow: 0 5px 15px rgba(0,0,0,0.05); }
.faq-header.active { color: var(--secondary); }

/* --- GALERİ FİLTRE BUTONLARI --- */
.gallery-filters {
    display: flex; justify-content: center; flex-wrap: wrap; gap: 15px; margin-bottom: 50px;
}
.filter-btn {
    background: transparent;
    color: #666;
    border: 2px solid #eee;
    padding: 10px 25px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    cursor: pointer;
}
.filter-btn:hover, .filter-btn.active {
    background: var(--secondary);
    border-color: var(--secondary);
    color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 168, 255, 0.3);
}

/* Galeri Öğesi */
.gallery-card {
    border-radius: 12px; overflow: hidden; position: relative; margin-bottom: 25px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.05); cursor: pointer;
}
.gallery-card img {
    width: 100%; height: auto; display: block; transition: transform 0.6s ease;
}
.gallery-overlay-icon {
    position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%) scale(0);
    width: 60px; height: 60px; background: rgba(255,255,255,0.9); border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: var(--primary); font-size: 1.5rem; opacity: 0; transition: all 0.4s ease;
}
.gallery-card:hover img { transform: scale(1.1); filter: brightness(0.8); }
.gallery-card:hover .gallery-overlay-icon { transform: translate(-50%, -50%) scale(1); opacity: 1; }

/* --- İLETİŞİM KARTLARI --- */
.contact-info-card {
    background: #fff; padding: 40px 30px; border-radius: 15px; text-align: center;
    box-shadow: 0 15px 40px rgba(0,0,0,0.05); border: 1px solid #eee;
    transition: 0.3s; height: 100%;
}
.contact-info-card:hover { transform: translateY(-10px); border-color: var(--secondary); }
.contact-icon-box {
    width: 70px; height: 70px; background: rgba(0, 168, 255, 0.1); border-radius: 50%;
    display: flex; align-items: center; justify-content: center; margin: 0 auto 20px;
    color: var(--secondary); font-size: 1.8rem; transition: 0.3s;
}
.contact-info-card:hover .contact-icon-box { background: var(--secondary); color: #fff; }
.contact-info-title { font-size: 1.2rem; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
.contact-info-text { color: #666; font-size: 1rem; line-height: 1.6; }

.map-container {
    height: 100%; min-height: 450px; border-radius: 15px; overflow: hidden;
    box-shadow: 0 20px 50px rgba(0,0,0,0.1);
}
.contact-form-box {
    background: #fff; padding: 50px; border-radius: 15px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.1);
}

/* ==================== 9. HEADER & PAGE TITLE ==================== */
.page-header {
    position: relative;
    height: 400px; 
    background-color: #ffffff;
    display: flex; align-items: center; justify-content: center;
    overflow: hidden; margin-bottom: 0;
}
.page-header-watermark {
    position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
    font-family: 'Outfit', sans-serif; font-size: 15vw; font-weight: 900;
    color: #f7f7f7; z-index: 1; white-space: nowrap; text-transform: uppercase;
    user-select: none; line-height: 1; letter-spacing: -5px;
}
.page-header-content {
    position: relative; z-index: 2; text-align: center; width: 100%; padding: 0 15px;
}
.page-header-subtitle {
    display: block; color: #00A8FF; font-size: 0.9rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: 2px; margin-bottom: 10px;
}
.page-header h1 {
    font-size: 3.5rem; font-weight: 800; color: #2C3E50;
    margin-bottom: 20px; letter-spacing: -1px; line-height: 1.2;
}
.breadcrumb-box { display: inline-block; margin-top: 10px; }
.breadcrumb-box a, .breadcrumb-box span {
    color: #999; font-size: 0.95rem; font-weight: 600; text-transform: uppercase;
    letter-spacing: 1px; text-decoration: none; margin: 0 5px;
}
.breadcrumb-box a:hover { color: #00A8FF; }
.breadcrumb-box .current { color: #333; font-weight: 700; }


/* ==================== 10. FULL MOBİL UYUMLULUK AYARLARI ==================== */
/* Tüm ekran boyutları için ince ayarlar */

@media (max-width: 991px) {
    /* -- GENEL -- */
    body { font-size: 15px; }
    .section-title { font-size: 2.2rem; }
    
    /* -- SLIDER MOBİL -- */
    #heroSlider .carousel-item { height: 70vh; min-height: 450px; }
    .hero-title { font-size: 2.5rem; line-height: 1.1; margin-bottom: 15px; }
    .hero-desc { font-size: 1.1rem; margin-bottom: 20px; }
    .carousel-caption { left: 5%; bottom: 10%; width: 90%; text-align: center; }
    .carousel-caption .hero-title, .carousel-caption .hero-desc { text-align: center; } /* Yazılar ortalandı */
    
    /* -- BOŞLUKLAR (PADDING) -- */
    .calculator-section, .masonry-section, .plise-premium-section, .contact-form-box { padding: 50px 0; }
    .contact-form-box { padding: 30px; } /* Mobilde form içi boşluğu düşür */

    /* -- HESAPLAYICI -- */
    .calc-glass-card { padding: 30px; border-radius: 12px; }
    .price-display h4 { font-size: 2.2rem; }
    
    /* -- GALERİ -- */
    .masonry-grid { column-count: 1; } /* Mobilde tek sütun */
    
    /* -- PLİSE PERDE -- */
    .plise-title { font-size: 2rem; }
    .plise-bg-shape { width: 300px; height: 300px; right: -50px; }
    
    /* -- PREMIUM İÇ SAYFALAR -- */
    .premium-header { padding: 100px 0 50px; text-align: center; }
    .ph-title { font-size: 2.8rem; }
    .premium-header-bg-text { font-size: 20vw; } /* Arka plan yazısı küçüldü */
    .ph-image-box { margin-top: 40px; box-shadow: 15px 15px 0px rgba(0, 168, 255, 0.1); }
    
    /* HAKKIMIZDA (Katmanlı Yapı) Mobilde Düzeltme */
    .about-overlap-container { height: auto; margin-bottom: 30px; display: flex; flex-direction: column; }
    .about-img-tall, .about-img-wide { position: relative; width: 100%; height: 300px; top: auto; left: auto; right: auto; bottom: auto; border: none; margin-bottom: 15px; }
    .about-text-overlap { margin: 0; padding: 30px; box-shadow: none; border: 1px solid #eee; }
    
    .founder-img-premium { height: 350px; }
    .premium-accordion .accordion-button { font-size: 1.3rem; padding: 20px 0; }
    
    .stat-item-modern { margin-bottom: 30px; }
    .stat-num-mod { font-size: 3rem; }

    /* -- PAGE HEADER (Kurumsal/İletişim Başlığı) -- */
    .page-header { height: 250px; }
    .page-header-watermark { font-size: 25vw; }
    .page-header h1 { font-size: 2.2rem; }

    /* -- FOOTER -- */
    footer { padding-top: 50px; text-align: center; }
    .footer-logo-area { border-right: none; border-bottom: 1px solid #eee; padding-right: 0; padding-bottom: 30px; margin-bottom: 30px; align-items: center; }
    .footer-heading::after { left: 50%; transform: translateX(-50%); }
    .footer-links a { justify-content: center; }
    .contact-row { justify-content: center; text-align: center; flex-direction: column; align-items: center; }
    .contact-row i { margin-right: 0; margin-bottom: 10px; }
}

@media (max-width: 576px) {
    /* Çok küçük telefonlar için ekstra ayarlar */
    .showcase-text h3 { font-size: 2rem; }
    .feature-grid { grid-template-columns: 1fr; } /* Özellikler alt alta */
    .contact-info-card { margin-bottom: 20px; }
    .navbar-brand img { height: 45px; } /* Logo küçült */
}