/* --- GENEL SIFIRLAMA VE TEMEL AYARLAR --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: #1a1a1a;
    color: #f0f0f0;
    line-height: 1.6;
}

a {
    color: #4dabf7; /* Linkler için genel bir mavi tonu */
    text-decoration: none;
}

/* --- HEADER (ÜST BİLGİ) ALANI --- */
.site-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 5%; /* Kenarlardan %5 boşluk */
    background-color: #111;
    border-bottom: 1px solid #333;
}

.site-header .logo a {
    color: #ffffff;
    font-size: 24px;
    font-weight: bold;
}

/* --- NAVİGASYON MENÜSÜ --- */
.site-header nav ul {
    list-style: none;
    display: flex;
    gap: 25px; /* Menü elemanları arası boşluk */
}

.site-header nav a {
    color: #e0e0e0;
    font-size: 16px;
    padding: 5px 0;
    transition: color 0.3s ease;
}

.site-header nav a:hover {
    color: #ffffff;
}

/* --- ÜYE OL / GİRİŞ YAP BUTONLARI --- */
.site-header .uye-butonlari {
    display: flex;
    gap: 15px;
}

.site-header .uye-butonlari a {
    padding: 10px 20px;
    border-radius: 5px;
    font-weight: bold;
    transition: all 0.3s ease;
}

/* Üye Ol Butonu (İçi boş) */
.btn-uye-ol {
    border: 1px solid #ffffff;
    color: #ffffff;
}
.btn-uye-ol:hover {
    background-color: #ffffff;
    color: #000000;
}

/* Giriş Yap Butonu (İçi dolu - Belirgin) */
.btn-giris-yap {
    background-color: #ffffff;
    color: #000000;
    border: 1px solid #ffffff;
}
.btn-giris-yap:hover {
    background-color: #cccccc;
    border-color: #cccccc;
}

/* --- ANA İÇERİK VE FOOTER ALANI --- */
main {
    padding: 40px 5%;
    min-height: 70vh; /* Sayfa içeriği az olsa bile footer'ın aşağıda kalmasını sağlar */
}

.site-footer {
    text-align: center;
    padding: 20px;
    background-color: #111;
    border-top: 1px solid #333;
    margin-top: 40px;
    color: #888;
}

/* --- WHATSAPP İKONU --- */
.whatsapp-ikonu {
    position: fixed;
    bottom: 25px;
    right: 25px;
    background-color: #25D366;
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.4);
    transition: transform 0.3s ease;
}
.whatsapp-ikonu:hover {
    transform: scale(1.1);
}