/* --- GENEL AYARLAR --- */
:root {
    --primary-color: #007aff; /* Apple Mavisi */
    --accent-color: #f0f0f0;  /* Açık Gri */
    --bg-color: #000000;      /* Siyah Arka Plan */
    --card-bg: #1c1c1c;       /* Koyu Gri Kart */
    --text-color: #ffffff;    /* Beyaz Metin */
    --text-muted: #8a8a8e;    /* Açık Gri Metin */
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'SF Pro Display', 'Helvetica Neue', Helvetica, Arial, sans-serif; /* Apple'a yakın font */
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* --- HEADER / NAVBAR --- */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 5%;
    position: fixed;
    width: 100%;
    top: 0;
    background: rgba(0, 0, 0, 0.8); /* Şeffaf siyah */
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid #333;
}

.logo {
    font-size: 1.2rem;
    font-weight: bold;
    letter-spacing: 1px;
    color: var(--accent-color); /* Apple logosu gibi hafif gri */
}

nav ul {
    display: flex;
    gap: 30px;
}

nav a:hover {
    color: var(--primary-color);
    transition: 0.3s;
}

/* --- HERO BÖLÜMÜ (ANA EKRAN) --- */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center; /* İçeriği ortaya hizala */
    padding: 0 5%;
    text-align: center; /* Metinleri ortaya hizala */
    background: radial-gradient(circle at center, rgba(20,20,20,1) 0%, rgba(0,0,0,1) 100%); /* Hafif degrade */
    flex-direction: column; /* Mobil için dikey sıralama */
    position: relative;
    overflow: hidden; /* Taşmaları engelle */
}

.hero-content {
    max-width: 800px;
    z-index: 10; /* Üstte kalmasını sağla */
}

.hero h1 {
    font-size: 5rem;
    line-height: 1.1;
    margin-bottom: 20px;
    letter-spacing: -2px;
    font-weight: 900; /* Extra bold */
    background: linear-gradient(45deg, #ffffff, var(--primary-color), #ffffff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.5rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.btn {
    padding: 15px 40px;
    background-color: var(--primary-color);
    color: var(--text-color);
    font-weight: bold;
    border-radius: 30px;
    display: inline-block;
    transition: transform 0.3s, box-shadow 0.3s, background-color 0.3s;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 122, 255, 0.4);
    background-color: #0056b3; /* Hafif koyu mavi hover */
}

.hero-image {
    position: absolute; /* Arka planda durması için */
    bottom: 0;
    right: 5%;
    opacity: 0.2; /* Hafif şeffaf */
    filter: blur(5px);
    transform: scale(1.2); /* Biraz büyüt */
    z-index: 5;
}

.hero-image img {
    max-width: 600px;
    height: auto;
}


/* --- ÖZELLİKLER BÖLÜMÜ --- */
.features {
    padding: 100px 5%;
    background-color: var(--bg-color);
}

.section-title {
    text-align: center;
    font-size: 3rem;
    margin-bottom: 80px;
    font-weight: 700;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.feature-card {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 15px;
    border: 1px solid #2a2a2a;
    text-align: center;
    transition: transform 0.3s, border-color 0.3s;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
}

.feature-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.feature-card h3 {
    margin-bottom: 15px;
    color: var(--text-color);
    font-size: 1.8rem;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 1.1rem;
    line-height: 1.8;
}

.feature-image {
    margin-top: 30px;
}

.feature-image img {
    max-width: 100%;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

/* --- GALERİ BÖLÜMÜ --- */
.gallery {
    padding: 100px 5%;
    background-color: #0a0a0a;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.gallery-item {
    overflow: hidden;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    transition: transform 0.3s;
}

.gallery-item:hover {
    transform: scale(1.03);
}

.gallery-item img {
    width: 100%;
    height: 250px; /* Sabit yükseklik */
    object-fit: cover; /* Görüntüyü kırpmadan sığdır */
    display: block;
}

/* --- FOOTER --- */
footer {
    text-align: center;
    padding: 40px;
    border-top: 1px solid #2a2a2a;
    color: var(--text-muted);
    font-size: 0.9rem;
    background-color: var(--bg-color);
}

/* --- MOBİL UYUMLULUK --- */
@media (max-width: 768px) {
    .hero {
        padding-top: 120px;
        flex-direction: column;
        justify-content: flex-start; /* İçeriği yukarı taşı */
    }
    
    .hero h1 { font-size: 3rem; margin-top: 50px;}
    .hero p { font-size: 1rem; }
    
    nav { display: none; /* Mobilde menüyü basitleştirmek için gizledim */ }
    
    .hero-image {
        position: relative; /* Hero içeriğinin altında görünsün */
        bottom: auto;
        right: auto;
        opacity: 0.5;
        filter: none;
        transform: scale(1);
        margin-top: 30px;
    }
    .hero-image img { max-width: 80%; }
    
    .section-title { font-size: 0px; margin-bottom: 50px;}
}