/* --- GENEL AYARLAR --- */
:root {
    --primary: #8a2be2;      /* Ana Renk: Mor */
    --secondary: #ff69b4;    /* İkincil Renk: Pembe */
    --dark: #333333;         /* Koyu Gri */
    --light: #f8f9fa;        /* Açık Gri Arka Plan */
    --font-main: 'Poppins', sans-serif;
}

body {
    font-family: var(--font-main);
    color: var(--dark);
    background-color: #fff;
    overflow-x: hidden;
}

a { text-decoration: none; transition: 0.3s; }

/* --- NAVBAR (ÜST MENÜ) --- */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px); /* Buzlu cam efekti */
    box-shadow: 0 2px 15px rgba(0,0,0,0.05);
    padding: 15px 0;
}
.navbar-brand {
    font-weight: 700;
    color: var(--primary) !important;
    font-size: 1.5rem;
}
.nav-link {
    color: var(--dark) !important;
    font-weight: 500;
    margin-left: 15px;
    position: relative;
}
.nav-link:hover, .nav-link.active {
    color: var(--primary) !important;
}
/* Menü alt çizgi animasyonu */
.nav-link::after {
    content: '';
    display: block;
    width: 0;
    height: 2px;
    background: var(--secondary);
    transition: width .3s;
}
.nav-link:hover::after { width: 100%; }

/* --- BUTONLAR --- */
.btn-primary {
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    border: none;
    border-radius: 50px;
    padding: 10px 30px;
    box-shadow: 0 4px 15px rgba(138, 43, 226, 0.3);
}
.btn-primary:hover {
    background: linear-gradient(45deg, var(--secondary), var(--primary));
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(138, 43, 226, 0.4);
}

/* --- HERO SECTION (GİRİŞ ALANI) --- */
.hero-section {
    background: url('../img/d1.jpg') no-repeat center center/cover;
    height: 80vh; /* Ekranın %80'i */
    position: relative;
    display: flex;
    align-items: center;
    color: white;
}
/* Resmin üzerine koyu filtre atıyoruz ki yazı okunsun */
.hero-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(to right, rgba(138, 43, 226, 0.8), rgba(255, 105, 180, 0.6));
}
.hero-content {
    position: relative;
    z-index: 2;
}

/* --- KARTLAR VE İKONLAR --- */
.feature-box {
    text-align: center;
    padding: 40px 20px;
    border-radius: 15px;
    background: white;
    box-shadow: 0 5px 25px rgba(0,0,0,0.05);
    transition: 0.3s;
    height: 100%;
}
.feature-box:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}
.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    background: -webkit-linear-gradient(var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* --- FOOTER --- */
footer {
    background-color: #2b2b2b;
    color: #ddd;
    padding: 50px 0 20px;
}
footer h5 { color: var(--secondary); margin-bottom: 20px; }
footer a { color: #aaa; }
footer a:hover { color: white; }
.copyright {
    border-top: 1px solid #444;
    margin-top: 30px;
    padding-top: 20px;
    font-size: 0.9rem;
}