:root{--bg:#f7f7fb;--card:#fff;--text:#171722;--muted:#666879;--accent:#6d5dfc;--border:#e5e4ee}*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,sans-serif;background:var(--bg);color:var(--text)}header{padding:18px 5%;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border);background:var(--card)}.brand{font-weight:800;font-size:21px;text-decoration:none;color:inherit}.brand span{color:var(--accent)}nav{display:flex;gap:18px;flex-wrap:wrap}nav a{color:inherit;text-decoration:none;font-weight:650;font-size:14px}main{max-width:900px;margin:auto;padding:60px 20px}.card{background:var(--card);border:1px solid var(--border);border-radius:22px;padding:clamp(24px,5vw,48px);box-shadow:0 15px 45px #23204410}h1{font-size:clamp(32px,6vw,52px);margin:0 0 14px}h2{margin-top:32px}p,li{line-height:1.8;color:var(--muted)}footer{max-width:900px;margin:auto;padding:28px 20px 45px;display:flex;justify-content:center;gap:18px;flex-wrap:wrap;font-size:13px}footer a{color:inherit;text-decoration:none}body.dark{--bg:#111119;--card:#1a1a24;--text:#f4f4fa;--muted:#aaaabd;--border:#2b2b38}button.theme{border:1px solid var(--border);background:var(--card);color:var(--text);border-radius:10px;padding:8px 12px;cursor:pointer}@media(max-width:600px){header{gap:14px;align-items:flex-start}nav{gap:10px}main{padding:35px 14px}footer{font-size:12px}}

.site-back-btn{position:fixed;left:18px;top:88px;z-index:1000;border:1px solid #dbeafe;background:#2563eb;color:#fff;padding:9px 15px;border-radius:10px;font:700 12px Inter,system-ui,sans-serif;cursor:pointer;box-shadow:0 6px 16px rgba(37,99,235,.22);transition:.18s}.site-back-btn:hover{background:#1d4ed8;transform:translateY(-1px)}@media(max-width:600px){.site-back-btn{top:72px;left:12px;padding:8px 12px}}


/* Unified centered legal footer buttons */
footer{width:100%;max-width:none;margin:0;box-sizing:border-box;display:block;text-align:center;padding:28px clamp(16px,5vw,64px) 45px;}
footer .legal-footer-links{width:100%;display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:12px;margin:0 auto;}
footer .legal-footer-links a{display:inline-flex;align-items:center;justify-content:center;min-width:130px;min-height:44px;padding:10px 18px;background:#2563eb;color:#fff!important;border-radius:10px;text-decoration:none!important;font-weight:700;box-shadow:0 4px 12px rgba(37,99,235,.25);box-sizing:border-box;}
@media(max-width:600px){footer .legal-footer-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}footer .legal-footer-links a{width:100%;min-width:0}}
@media(max-width:380px){footer .legal-footer-links{grid-template-columns:1fr}}