/* --- TEMEL AYARLAR --- */
:root {
    --bg-color: #0a0a0a;         /* Koyu Arka Plan */
    --text-color: #e0e0e0;       /* Açık Gri Yazı */
    --accent-color: #9b59b6;     /* Mor Vurgu */
    --card-bg: #141414;          /* Kart Rengi */
    --border-color: #333;
    --font-main: 'Inter', sans-serif;
    --font-heading: 'Merriweather', serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-main);
    line-height: 1.7;
    font-size: 16px;
}

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

/* --- NAVBAR --- */
.navbar {
    background: rgba(10, 10, 10, 0.95);
    border-bottom: 1px solid var(--border-color);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo { font-family: var(--font-heading); font-size: 1.2rem; font-weight: 700; color: #fff; }
.btn-login { 
    background: var(--accent-color); 
    padding: 8px 20px; 
    border-radius: 20px; 
    color: #fff; 
    font-weight: 600;
    font-size: 0.9rem;
}

/* --- HEADER --- */
.page-header {
    text-align: center;
    padding: 80px 20px;
    background: linear-gradient(180deg, rgba(155,89,182,0.1) 0%, rgba(10,10,10,0) 100%);
    border-bottom: 1px solid var(--border-color);
}

.page-header h1 {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    color: #fff;
    margin-bottom: 15px;
}

.page-header p { color: #888; font-size: 0.9rem; letter-spacing: 1px; text-transform: uppercase; }

/* --- LAYOUT (GRID SİSTEMİ) --- */
.main-wrapper { padding: 60px 0; }

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

.content-grid {
    display: grid;
    grid-template-columns: 280px 1fr; /* Sol 280px, Sağ kalan alan */
    gap: 60px;
    align-items: start;
}

/* --- SIDEBAR (SOL MENÜ) --- */
.sidebar {
    position: sticky;
    top: 100px;
}

.toc-box {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
}

.toc-box h3 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    margin-bottom: 15px;
    color: #fff;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}

.toc-box ul { list-style: none; }
.toc-box li { margin-bottom: 8px; }

.toc-box a {
    color: #aaa;
    font-size: 0.9rem;
    display: block;
    padding: 5px 0;
}

.toc-box a:hover { color: var(--accent-color); transform: translateX(5px); }

/* --- SAĞ METİN İÇERİĞİ --- */
.legal-text section {
    margin-bottom: 50px;
    /* Linke tıklayınca başlık navbar altında kalmasın diye */
    scroll-margin-top: 100px; 
}

.legal-text h2 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: var(--accent-color);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}

.legal-text p, .legal-text li {
    margin-bottom: 15px;
    color: var(--text-color);
}

.legal-text ul { padding-left: 20px; margin-bottom: 20px; }

.contact-box {
    background: rgba(155, 89, 182, 0.1);
    padding: 30px;
    border-radius: 12px;
    border: 1px solid var(--accent-color);
    text-align: center;
}

.contact-box a {
    color: #fff;
    font-weight: 700;
    font-size: 1.1rem;
    text-decoration: underline;
}

/* --- YUKARI ÇIK BUTONU --- */
#backToTop {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--accent-color);
    color: #fff;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    display: none; /* JS ile görünür olacak */
    z-index: 999;
}

/* ==========================================================================
   MOBİL UYUMLULUK (RESPONSIVE)
   ========================================================================== */
@media (max-width: 900px) {
    /* 1. Grid yapısını iptal et, her şey alt alta */
    .content-grid {
        display: block;
    }

    /* 2. Yan menüyü mobilde GİZLE */
    .sidebar {
        display: none;
    }

    /* 3. Başlık boyutlarını küçült */
    .page-header h1 { font-size: 2rem; }
    .legal-text h2 { font-size: 1.5rem; }

    /* 4. Kenar boşluklarını azalt */
    .page-header { padding: 50px 20px; }
    .main-wrapper { padding: 30px 0; }
    
    /* 5. Yazı boyutunu mobilde biraz küçült */
    body { font-size: 15px; }
}