/* --- FOOTER TASARIMI --- */
.site-footer {
    background: var(--element-bg); 
    border-top: 1px solid var(--border-color);
    padding: 70px 0 30px;
    margin-top: 80px;
    font-family: 'Urbanist', sans-serif;
    position: relative;
    z-index: 10;
    box-shadow: 0 -10px 40px var(--shadow-color); 
    transition: background-color 0.3s, border-color 0.3s;
}

.site-footer::before {
    content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
    opacity: 0.6;
    box-shadow: 0 0 15px var(--primary-color);
}

.footer-container {
    max-width: 1250px; margin: 0 auto; padding: 0 25px;
    display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 50px;
}

.f-col h3 { 
    color: var(--text-main); font-size: 15px; font-weight: 800; 
    margin-bottom: 25px; text-transform: uppercase; letter-spacing: 1px;
    position: relative; padding-left: 15px;
}
.f-col h3::before {
    content: ''; position: absolute; left: 0; top: 50%; transform: translateY(-50%);
    width: 4px; height: 16px; background: var(--primary-color); border-radius: 2px;
    box-shadow: 0 0 10px var(--primary-color);
}

.f-desc { color: var(--text-sub); font-size: 14px; line-height: 1.7; margin-bottom: 25px; font-weight: 500; }
.f-logo { font-size: 26px; font-weight: 900; color: var(--text-main); text-decoration: none; text-transform: uppercase; display: inline-block; margin-bottom: 15px; letter-spacing: -0.5px; }
.f-logo span { color: var(--primary-color); text-shadow: 0 0 15px var(--primary-glow); }

/* Sosyal Medya */
.social-links { display: flex; gap: 12px; }
.social-btn {
    width: 40px; height: 40px; background: var(--input-bg);
    display: flex; align-items: center; justify-content: center; 
    border-radius: 10px; color: var(--text-sub); text-decoration: none; 
    transition: 0.3s; border: 1px solid var(--border-color);
}
.social-btn:hover { transform: translateY(-3px); color: #fff; border-color: transparent; }
.social-btn.insta:hover { background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888); box-shadow: 0 5px 15px rgba(188, 24, 136, 0.4); }
.social-btn.twit:hover { background: #1DA1F2; box-shadow: 0 5px 15px rgba(29, 161, 242, 0.4); }
.social-btn.tele:hover { background: #0088cc; box-shadow: 0 5px 15px rgba(0, 136, 204, 0.4); }

/* Linkler */
.f-links { list-style: none; padding: 0; margin: 0; }
.f-links li { margin-bottom: 12px; }
.f-links a { color: var(--text-sub); text-decoration: none; font-size: 14px; transition: 0.3s; font-weight: 600; display: flex; align-items: center; gap: 10px; }
.f-links a:hover { color: var(--text-main); transform: translateX(5px); }
.f-links a i { font-size: 10px; color: var(--primary-color); transition: 0.3s; }
.f-links a:hover i { text-shadow: 0 0 8px var(--primary-color); }

/* Etiketler */
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-item {
    padding: 8px 14px; background: var(--input-bg); color: var(--text-sub);
    font-size: 12px; text-decoration: none; border-radius: 8px;
    font-weight: 600; border: 1px solid var(--border-color); transition: 0.3s;
}
.tag-item:hover { 
    background: var(--primary-color); color: #fff; border-color: var(--primary-color);
    box-shadow: 0 5px 15px var(--primary-glow); transform: translateY(-2px);
}

/* Footer Bottom */
.footer-bottom {
    border-top: 1px solid var(--border-color); margin-top: 60px; padding-top: 30px;
    text-align: center; color: var(--text-sub); font-size: 13px; font-weight: 500;
    background: var(--bg-body); padding-bottom: 30px;
}
.footer-bottom span { color: var(--primary-color); font-weight: 700; }

/* YUKARI ÇIK BUTONU */
#backToTop {
    position: fixed; bottom: 30px; right: 30px; width: 55px; height: 55px;
    background: var(--primary-color); color: #fff; border: none; border-radius: 50%;
    cursor: pointer; display: flex; align-items: center; justify-content: center;
    font-size: 22px; opacity: 0; visibility: hidden;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 9999; box-shadow: 0 10px 25px var(--primary-glow);
}
#backToTop.show { opacity: 1; visibility: visible; transform: translateY(0); }
#backToTop:hover { background: var(--text-main); color: var(--primary-color); transform: translateY(-8px); box-shadow: 0 15px 35px rgba(0,0,0,0.2); }

@media (max-width: 900px) {
    .footer-container { grid-template-columns: 1fr; gap: 40px; text-align: center; }
    .f-col h3::before { left: 50%; transform: translateX(-50%); top: -10px; width: 30px; height: 3px; }
    .f-links a:hover { transform: translateX(0); color: var(--primary-color); }
    .f-links a { justify-content: center; }
    .social-links { justify-content: center; }
    .tag-cloud { justify-content: center; }
    #backToTop { bottom: 20px; right: 20px; width: 45px; height: 45px; font-size: 18px; }
}