@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;600&display=swap');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif !important;
}

html {
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: #ffffff;
    color: #000000;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

section, .hizmetler-bolumu, .hakkimizda { flex: 1 0 auto; }

footer {
    flex-shrink: 0;
    text-align: center;
    padding: 20px;
    background: #1a1a1a;
    color: #fff;
}

/* HEADER VE MENÜ */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 50px;
    background-color: #ffffff;
    border-bottom: 2px solid #000000;
    position: sticky;
    top: 0;
    z-index: 999;
}
.logo img { height: 60px; transition: transform 0.4s ease; }
.logo img:hover { transform: scale(1.08) rotate(-2deg); }
nav ul { list-style: none; display: flex; gap: 40px; align-items: center; }
nav a { color: #000000; text-decoration: none; font-weight: 700; font-size: 0.9rem; letter-spacing: 1px; transition: 0.3s; }
nav a:hover, nav a.aktif-link { border-bottom: 3px solid #000000; padding-bottom: 5px; }
.header-sag { display: flex; align-items: center; gap: 30px; }
.dil-secici { display: flex; gap: 10px; align-items: center; border-left: 2px solid #eee; padding-left: 20px; }
.dil-secici img { width: 28px; height: 20px; border-radius: 4px; border: 1px solid #ddd; transition: 0.3s; opacity: 0.4; object-fit: cover; }
.dil-secici a:hover img, .dil-secici a.aktif-dil img { opacity: 1; transform: scale(1.15); box-shadow: 0 4px 8px rgba(0,0,0,0.15); }

/* VİDEO BÖLÜMÜ */
.video-kapsayici {
    position: relative;
    height: 85vh;
    width: 100%;
    overflow: hidden;
    flex-shrink: 0;
    background-color: #000000;
    cursor: default;
}
.video-kapsayici video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: 100%;
    height: 100%;
    z-index: 0;
    transform: translate(-50%, -50%);
    object-fit: cover;
    pointer-events: none;
}
.video-filtre { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0, 0, 0, 0.55); z-index: 1; }
.video-icerik { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); z-index: 2; text-align: center; color: #ffffff; width: 100%; height: 100px; }
.video-yazi-varsayilan, .video-yazi-hover { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 100%; transition: opacity 0.8s ease-in-out, visibility 0.8s ease-in-out, transform 0.8s ease-in-out; }
.video-yazi-varsayilan { opacity: 1; visibility: visible; }
.video-yazi-hover { opacity: 0; visibility: hidden; transform: translate(-50%, -30%); }
.video-kapsayici:hover .video-yazi-varsayilan { opacity: 0; visibility: hidden; transform: translate(-50%, -70%); }
.video-kapsayici:hover .video-yazi-hover { opacity: 1; visibility: visible; transform: translate(-50%, -50%); }
.video-icerik h1 { font-size: 4.5rem; margin-bottom: 15px; letter-spacing: 3px; text-shadow: 2px 2px 8px rgba(0,0,0,0.9); }
.video-icerik p { font-size: 1.8rem; font-weight: 300; text-shadow: 1px 1px 5px rgba(0,0,0,0.9); }

/* FOTOĞRAF KOLAJI (FLEX YAPI) */
.kolaj-bolumu { padding: 80px 20px; background: #ffffff; text-align: center; }
.kolaj-bolumu h2 { font-size: 2.5rem; margin-bottom: 50px; border-bottom: 3px solid #000000; display: inline-block; padding-bottom: 10px; }
.kolaj-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 25px; max-width: 1200px; margin: 0 auto; }
.kolaj-oge { flex: 1 1 calc(33.333% - 25px); max-width: 550px; min-width: 300px; position: relative; overflow: hidden; border-radius: 15px; box-shadow: 0 4px 15px rgba(0,0,0,0.1); display: block; line-height: 0; background-color: #000000; }
.kolaj-oge img { width: 100%; height: 350px; object-fit: cover; transition: transform 0.5s ease; display: block; }
.kolaj-oge:hover img { transform: scale(1.08); }

/* ORTAK KOLAJ YAZISI */
.kolaj-yazi {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.4); color: #ffffff;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem; font-weight: 700; text-align: center;
    padding: 20px; opacity: 0; transition: opacity 0.4s ease;
    z-index: 2; backdrop-filter: blur(5px);
}
.kolaj-oge:hover .kolaj-yazi { opacity: 1; }

/* FAALİYETLER */
.faaliyetler-bolumu { text-align: center; padding: 70px 20px; background: #ffffff; }
.faaliyetler-bolumu h2 { color: #000000; font-size: 2.2rem; margin-bottom: 10px; text-transform: uppercase; font-weight: 700; }
.faaliyet-cizgi { width: 350px; height: 3px; background: #000000; margin: 0 auto 50px auto; }
.faaliyet-kapsayici { display: flex; justify-content: center; flex-wrap: wrap; gap: 40px; max-width: 1200px; margin: 0 auto; }
.faaliyet-oge { display: flex; flex-direction: column; align-items: center; width: 160px; }
.faaliyet-ikon { width: 110px; height: 110px; background: #000000; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin-bottom: 15px; transition: transform 0.3s ease; box-shadow: 0 8px 15px rgba(0,0,0,0.1); }
.faaliyet-ikon img { width: 55px; height: 55px; object-fit: contain; filter: brightness(0) invert(1); }
.faaliyet-oge:hover .faaliyet-ikon { transform: scale(1.1); box-shadow: 0 12px 25px rgba(0,0,0,0.3); }
.faaliyet-oge p { color: #000000; font-size: 1.05rem; font-weight: 700; line-height: 1.3; text-transform: uppercase; margin: 0; }

/* GENEL BÖLÜMLER VE KUTULAR */
.bolum { padding: 100px 50px; text-align: center; }
.bolum h2 { font-size: 2.5rem; margin-bottom: 50px; border-bottom: 3px solid #000000; display: inline-block; padding-bottom: 10px; }
.kutu-kapsayici { display: flex; justify-content: center; gap: 40px; flex-wrap: wrap; }
.kutu { border: 2px solid #000000; padding: 40px; width: 350px; background-color: #ffffff; color: #000000; transition: 0.4s; text-align: left; box-shadow: 0 10px 30px rgba(0,0,0,0.05); border-radius: 4px; }
.kutu:hover { background-color: #000000; color: #ffffff; transform: translateY(-15px) scale(1.02); box-shadow: 0 20px 40px rgba(0,0,0,0.2); }
.kutu h3 { font-size: 1.5rem; margin-bottom: 15px; }

/* SAYFA BAŞLIKLARI VE İÇERİK */
.sayfa-baslik { background-color: #000000; color: #ffffff; padding: 60px 50px; text-align: center; }
.sayfa-baslik h1 { font-size: 3rem; margin-bottom: 10px; }
.sayfa-baslik p { font-size: 1rem; color: #aaaaaa; }
.icerik-alani { display: flex; padding: 80px 50px; gap: 60px; max-width: 1200px; margin: 0 auto; }
.ana-icerik { flex: 3; }
.ana-icerik h2 { font-size: 2.5rem; margin-bottom: 30px; }
.ana-icerik p { font-size: 1.1rem; margin-bottom: 20px; color: #333333; }

/* YAN MENÜ */
.yan-menu { flex: 1; border-right: 2px solid #eeeeee; padding-right: 30px; }
.yan-menu h2 { font-size: 1.5rem; margin-bottom: 20px; }
.yan-menu ul { list-style: none; }
.yan-menu a { display: block; padding: 15px 0; color: #555555; text-decoration: none; font-weight: bold; border-bottom: 1px solid #eeeeee; transition: 0.3s; }
.yan-menu a.aktif-yan, .yan-menu a:hover { color: #000000; padding-left: 10px; border-color: #000000; }
.sekme-icerik { display: none; }
.sekme-icerik.aktif-sekme { display: block; animation: fade 0.5s ease-in-out; }
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }

/* İLETİŞİM FORMU VE BUTONLAR */
.iletisim-kapsayici { display: flex; gap: 60px; max-width: 1000px; margin: 0 auto; text-align: left; }
.iletisim-bilgileri, .iletisim-formu { flex: 1; }
.iletisim-bilgileri p { margin-bottom: 15px; font-size: 1.1rem; }
input, textarea { padding: 20px; border: 2px solid #000000; width: 100%; margin-bottom: 20px; font-size: 1rem; background-color: #f9f9f9; }
button { padding: 20px 40px; background-color: #000000; color: #ffffff; border: none; cursor: pointer; font-weight: bold; font-size: 1rem; transition: 0.3s; position: relative; overflow: hidden; z-index: 1; border: 2px solid #000000; }
button::before { content: ''; position: absolute; top: 0; left: -100%; width: 100%; height: 100%; background-color: #ffffff; z-index: -1; transition: all 0.4s ease; }
button:hover { color: #000000; }
button:hover::before { left: 0; }

/* PROJE FİLTRE VE KARTLARI */
.filtre-merkez { text-align: center; padding: 40px 0 10px 0; }
.filtre-btn { background-color: transparent; color: #000000; border: 2px solid #000000; padding: 12px 30px; margin: 0 10px; border-radius: 30px; transition: 0.3s; }
.filtre-btn:hover, .filtre-btn.aktif-btn { background-color: #f0f0f0; color: #000000; border-color: #000000; }
.proje-kart { position: relative; padding: 0 !important; border: none !important; border-radius: 12px; overflow: hidden; box-shadow: 0 8px 20px rgba(0,0,0,0.1); background-color: #ffffff; transition: transform 0.4s, opacity 0.4s ease; }
.proje-kart img { width: 100% !important; height: 250px !important; object-fit: cover !important; border-bottom: 3px solid #000000; }
.proje-kart h3 { margin: 20px 20px 10px 20px; font-size: 1.4rem; }
.proje-kart p { margin: 0 20px 15px 20px; color: #555555; }
.proje-kart small { display: block; margin: 0 20px 20px 20px; color: #888888; }
.proje-kart .durum-etiket { position: absolute; top: 15px; right: 15px; margin: 0; border-radius: 6px; box-shadow: 0 2px 8px rgba(0,0,0,0.2); z-index: 10; display: inline-block; background-color: #eeeeee; color: #000000; font-size: 0.8rem; padding: 4px 10px; font-weight: bold; letter-spacing: 1px; }
.proje-kart .durum-etiket.siyah-etiket { background-color: #000000; color: #ffffff; }
.proje-kart:hover p, .proje-kart:hover small { color: #ffffff !important; }
.proje-kart:hover .durum-etiket { background-color: #ffffff; color: #000000; }

.katalog-btn { background-color: #1a1a1a !important; color: #ffffff !important; padding: 10px 20px !important; border-radius: 5px; border-bottom: none !important; }
.katalog-btn:hover { background-color: #444 !important; transform: scale(1.05); }

/* SCROLLBAR AYARLARI */
::-webkit-scrollbar { width: 12px; }
::-webkit-scrollbar-track { background: #ffffff; border-left: 1px solid #eeeeee; }
::-webkit-scrollbar-thumb { background: #000000; }
::-webkit-scrollbar-thumb:hover { background: #333333; }

/* ========================================================= */
/* --- KUSURSUZ FÜZE MOBİL TASARIM (TEK BLOK) --- */
/* ========================================================= */
@media (max-width: 768px) {
    body { font-size: 15px; }
    .bolum, .sayfa-baslik, .icerik-alani { padding: 40px 20px; }
    
    header { flex-direction: column; padding: 15px 10px; background: rgba(255, 255, 255, 0.92); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid rgba(0,0,0,0.05); position: sticky; top: 0; z-index: 1000; }
    .logo img { height: 45px; margin-bottom: 10px; }
    .header-sag { flex-direction: column; gap: 15px; width: 100%; }
    
    nav { width: 100%; overflow-x: auto; scrollbar-width: none; -webkit-overflow-scrolling: touch; }
    nav::-webkit-scrollbar { display: none; }
    nav ul { display: inline-flex; flex-wrap: nowrap; gap: 10px; margin: 0; padding: 5px 10px 10px 10px; }
    nav li { flex: 0 0 auto; }
    nav a { display: block; background: #f5f5f5; padding: 12px 22px; border-radius: 30px; font-size: 0.85rem; border: none !important; box-shadow: 0 2px 6px rgba(0,0,0,0.04); }
    nav a.aktif-link { background: #000000; color: #ffffff; box-shadow: 0 4px 12px rgba(0,0,0,0.2); }
    
    .dil-secici { border-left: none; padding-left: 0; padding-bottom: 10px; }
    .icerik-alani { flex-direction: column; gap: 30px; padding: 30px 15px; }
    
    .filtre-merkez { display: flex; flex-wrap: nowrap; overflow-x: auto; gap: 10px; padding: 10px 15px; scrollbar-width: none; -webkit-overflow-scrolling: touch; }
    .filtre-merkez::-webkit-scrollbar { display: none; }
    .filtre-btn { margin: 0; padding: 12px 24px; font-size: 0.85rem; border-radius: 30px; white-space: nowrap; flex: 0 0 auto; border: 1px solid #ddd; }
    
    .hizmet-kapsayici { flex-direction: column; gap: 20px; padding: 0 10px; }
    .hizmet-kutu { width: 100%; padding: 35px 25px; border-radius: 20px; border: none; background: #ffffff; box-shadow: 0 8px 25px rgba(0,0,0,0.06); }
    
    .kutu-kapsayici { flex-direction: column; gap: 25px; padding: 0 10px; }
    .kutu, .proje-kart { width: 100%; border-radius: 16px; border: 1px solid #f0f0f0; box-shadow: 0 8px 20px rgba(0,0,0,0.05); }
    .proje-kart img { height: 220px !important; }
    
    .iletisim-kapsayici { flex-direction: column; gap: 30px; padding: 0 10px; }
    input, textarea { border-radius: 12px; padding: 16px; border: 1px solid #eee; background: #fafafa; }
    input:focus, textarea:focus { border-color: #000; background: #fff; outline: none; }
    button { border-radius: 12px; padding: 18px; font-size: 1.05rem; }
    .iletisim-formu button { width: 100%; display: block; margin: 0 auto; text-align: center; }
    
    .yan-menu h2 { display: none; }
    .yan-menu { border-right: none; display: flex; overflow-x: auto; white-space: nowrap; padding-bottom: 5px; margin-bottom: 25px; scrollbar-width: none; -webkit-overflow-scrolling: touch; }
    .yan-menu::-webkit-scrollbar { display: none; }
    .yan-menu ul { display: inline-flex; gap: 10px; width: 100%; padding-left: 0; margin: 0; }
    .yan-menu li { flex: 0 0 auto; }
    .yan-menu a { border-bottom: none; background: #f0f0f0; padding: 12px 25px; border-radius: 30px; font-size: 0.9rem; font-weight: 700; color: #555; }
    .yan-menu a.aktif-yan { background: #000000; color: #ffffff; padding-left: 25px; border: none; box-shadow: 0 4px 10px rgba(0,0,0,0.2); }
    
    .video-kapsayici { height: 75vh; }
    .video-icerik h1 { font-size: 2.2rem; line-height: 1.2; padding: 0 15px; }
    .video-icerik p { font-size: 1.1rem; padding: 0 20px; }
    
    .kolaj-bolumu { padding: 60px 15px; }
    .kolaj-grid { gap: 15px; }
    .kolaj-oge { flex: 1 1 100%; max-width: 100%; border-radius: 12px; }
    .kolaj-oge img { height: 380px !important; object-fit: cover !important; object-position: bottom !important; }
    .kolaj-yazi { font-size: 1.2rem; }
    
    .faaliyet-kapsayici { gap: 20px; }
    .faaliyet-oge { width: 130px; }
    .faaliyet-cizgi { width: 250px; }
}