:root { 
    --primary: #2A4BA0; /* Ana Renk: Lacivert */
    --primary-dark: #1a3270; 
    --text: #1f2937; 
    --bg: #f9fafb; 
    --white: #ffffff; 
}

body { 
    font-family: 'Inter', sans-serif; 
    margin: 0; 
    background: var(--bg); 
    color: var(--text); 
    overflow-x: hidden; 
}

.container { 
    max-width: 1200px; 
    margin: 0 auto; 
    padding: 0 20px; 
}

/* --- NAVİGASYON --- */
nav { 
    background: var(--primary); 
    padding: 15px 0; 
    box-shadow: 0 4px 20px rgba(42, 75, 160, 0.2); 
    position: sticky; 
    top: 0; 
    z-index: 100; 
}

.nav-container { 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
}

/* LOGO KUTUSU (DİKEYDE TAM ORTALI) */
.logo {
    display: flex;
    align-items: center; /* Bu özellik hem resmi hem yazıyı aynı hizaya çeker */
    gap: 15px; 
}

.logo img { 
    height: 70px; 
    width: auto; 
    display: block;
    /* Gölge %10 Opaklığa düşürüldü (Çok hafif) */
    filter: drop-shadow(0 0 6px rgba(255, 255, 255, 0.1)); 
}

/* MARKA İSMİ */
.brand-text {
    font-size: 48px; 
    font-weight: 800; 
    color: var(--white); 
    line-height: 1; /* Satır yüksekliği sıkılaştırıldı */
    letter-spacing: -1px;
    padding-top: 0; /* Manuel kaydırma kaldırıldı, Flexbox ortalayacak */
    margin-bottom: 0; /* Alt boşluk varsa sıfırlandı */
}

.nav-links a { 
    margin-left: 20px; 
    text-decoration: none; 
    color: rgba(255, 255, 255, 0.9); 
    font-weight: 500; 
    font-size: 15px; 
    transition: 0.3s;
}

.nav-links a:hover { color: #fff; opacity: 1; }

.btn-login { 
    background: var(--white); 
    color: var(--primary) !important; 
    padding: 10px 25px; 
    border-radius: 8px; 
    text-decoration: none; 
    font-weight: 800 !important; 
    transition: 0.3s;
}
.btn-login:hover { 
    transform: translateY(-2px); 
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

/* --- HERO (SOLA DAYALI) --- */
.hero { 
    padding: 80px 0; 
    background: linear-gradient(135deg, #f0f4ff 0%, #ffffff 100%); 
}

.hero-content { 
    display: flex; 
    align-items: center; 
    gap: 50px; 
}

.hero-text { 
    flex: 1; 
}

.hero-image { 
    flex: 1; 
    display: flex; 
    justify-content: center; 
}

.phone-mockup {
    border: 12px solid #1f2937;
    border-radius: 40px;
    overflow: hidden;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    width: 280px; 
    background: black;
    position: relative;
}
.phone-mockup::before {
    content: '';
    position: absolute;
    top: 0; left: 50%; transform: translateX(-50%);
    width: 120px; height: 25px;
    background: #1f2937;
    border-bottom-left-radius: 12px;
    border-bottom-right-radius: 12px;
    z-index: 2;
}
.phone-mockup img { width: 100%; height: auto; display: block; }

h1 { font-size: 48px; margin-bottom: 20px; line-height: 1.2; }
.highlight { color: var(--primary); }

.hero-buttons { margin-bottom: 25px; }

/* ANA BUTON */
.btn-primary { 
    background-color: var(--primary); 
    color: white; 
    padding: 15px 30px; 
    border-radius: 10px; 
    text-decoration: none; 
    font-weight: bold; 
    display: inline-block; 
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(42, 75, 160, 0.3); 
    border-bottom: 4px solid var(--primary-dark); 
}

.btn-primary:hover { 
    background-color: #345dc0; 
    box-shadow: 0 6px 20px rgba(42, 75, 160, 0.5); 
    transform: translateY(-2px); 
}

/* MAĞAZA BUTONLARI (SOLA DAYALI) */
.store-buttons {
    display: flex;
    gap: 15px;
    align-items: center;
    margin-top: 20px;
}

.store-buttons img {
    transition: transform 0.3s ease;
    cursor: pointer;
}

.store-buttons img:hover { transform: scale(1.05); opacity: 0.9; }

/* ÖZELLİKLER */
.features { padding: 80px 0; background: white; }
.section-title { text-align: center; font-size: 32px; margin-bottom: 50px; color: var(--primary); font-weight: 800;}
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
.feature-card { background: var(--bg); padding: 30px; border-radius: 16px; text-align: center; transition: 0.3s; }
.feature-card:hover { transform: translateY(-5px); box-shadow: 0 10px 20px rgba(0,0,0,0.05); }
.icon-box { width: 60px; height: 60px; background: rgba(42, 75, 160, 0.1); color: var(--primary); display: flex; align-items: center; justify-content: center; border-radius: 50%; margin: 0 auto 20px; font-size: 24px; }

/* GALERİ */
.gallery-section { padding: 80px 0; background: #f0f4ff; }
.gallery-scroll { display: flex; overflow-x: auto; gap: 20px; padding: 20px 0; padding-right: 50px; padding-left: 10px; scrollbar-width: thin; scrollbar-color: var(--primary) #ddd; }
.gallery-scroll img { flex-shrink: 0; height: 500px; width: auto; border-radius: 20px; box-shadow: 0 10px 20px rgba(0,0,0,0.1); transition: 0.3s; }
.gallery-scroll img:hover { transform: scale(1.02); }
.gallery-scroll::-webkit-scrollbar { height: 8px; }
.gallery-scroll::-webkit-scrollbar-track { background: #ddd; border-radius: 4px; }
.gallery-scroll::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 4px; }

footer { text-align: center; padding: 40px 0; background: var(--text); color: white; }

@media (max-width: 768px) { 
    .hero-content { flex-direction: column; text-align: center; } 
    .nav-links { display: none; } 
    .store-buttons { justify-content: center; } 
    .gallery-scroll img { height: 350px; } 
    .logo img { height: 40px; } 
    .brand-text { font-size: 28px; }
}