/* Genel Header */
.main-header {
    background: rgba(15, 25, 50, 0.95);
    padding: 15px 20px;
    border-bottom: 1px solid #1a2b55;
    box-shadow: 0 4px 15px rgba(0,0,0,0.4);
    position: sticky;
    top: 0;
    z-index: 999;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: nowrap;
    max-width: 1200px;
    margin: 0 auto;
}

/* Logo */
.logo a {
    color: #58a6ff;
    font-size: 2em;
    font-weight: bold;
    text-decoration: none;
    transition: color 0.3s;
}
.logo a:hover { color: #00e0ff; }

/* Navigasyon Butonları */
.nav-buttons {
    display: flex;
    gap: 12px;
}
.nav-btn {
    padding: 8px 14px;
    background: #4a57a1;
    color: #fff;
    text-decoration: none;
    font-weight: bold;
    border-radius: 8px;
    transition: all 0.3s ease;
}
.nav-btn:hover { background: #5d69aa; transform: translateY(-2px); }

/* Auth Area */
.auth-area {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Profil ve Çıkış */
.profile-name {
    padding: 8px 12px;
    background: #4a57a1;
    color: #fff;
    border-radius: 8px;
    font-weight: bold;
}
.logout-btn {
    padding: 8px 12px;
    background: #d9534f;
    color: #fff;
    text-decoration: none;
    border-radius: 8px;
    font-weight: bold;
    transition: 0.3s;
}
.logout-btn:hover { background: #c9302c; transform: translateY(-2px); }

/* Giriş / Kayıt Butonları */
.btn-login, .btn-register {
    padding: 8px 14px;
    text-decoration: none;
    color: #fff;
    font-weight: bold;
    border-radius: 8px;
    transition: 0.3s;
}
.btn-login { background: #3e82c7; }
.btn-register { background: #00c8ff; }
.btn-login:hover { background: rgba(62,130,199,0.7); }
.btn-register:hover { background: rgba(0,200,255,0.7); }

/* Responsive */
@media(max-width: 768px){
    .header-inner { flex-wrap: wrap; gap: 10px; }
    .nav-buttons { flex-wrap: wrap; justify-content: center; width: 100%; }
    .auth-area { justify-content: center; width: 100%; margin-top: 8px; }
}