:root {
    --primary-blue: #1DA1F2;
    
    /* AÇIK TEMA - Üst Beyaz, Alt Bebek Mavisi */
    --bg-body: #ffffff;
    --bg-footer: #e1f0fc; /* Çok tatlı bir bebek mavisi */
    --bg-box: #ffffff;
    --text-main: #111827;
    --text-muted: #4b5563;
    --border-color: #e5e7eb;
}

body.dark-theme {
    /* KARANLIK TEMA - MangoHost Tarzı Derin Koyu Estetik */
    --bg-body: #111111;    /* Neredeyse tam siyah gövde */
    --bg-footer: #1a1a1a;  /* Çok hafif gri/siyah footer */
    --bg-box: #1f1f1f;
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --border-color: #2a2a2a;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif; /* Kurumsal ve net font */
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-body);
    color: var(--text-main);
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

a { text-decoration: none; color: inherit; }

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-body); }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary-blue); }