:root{--bg:#0b1020;--panel:#121931;--soft:#1b2447;--text:#edf2ff;--muted:#a9b4d0;--line:#2b3768;--accent:#86a7ff;--max:880px}[data-theme=light]{--bg:#f4f6fb;--panel:#ffffff;--soft:#eef1fb;--text:#1b2140;--muted:#5a6280;--line:#d7dceb;--accent:#2b56f5}*{box-sizing:border-box}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,segoe ui,sans-serif;background:linear-gradient(180deg,var(--bg) 0%,#0d1327 100%);color:var(--text);line-height:1.7}[data-theme=light] body{background:linear-gradient(180deg,var(--bg) 0%,#e2e7f4 100%)}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.container{width:min(100% - 2rem,var(--max));margin:0 auto}.site-header,.site-footer{border-bottom:1px solid var(--line)}.site-footer{border-top:1px solid var(--line);border-bottom:0;margin-top:4rem}.header-inner{display:flex;justify-content:space-between;align-items:center;padding:1rem 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