:root{--bg:#0B0F19;--surface:#12172A;--surface-2:#1A2138;--border:#262E47;--ink:#F3F5FA;--ink-dim:#9AA3C0;--accent:#5B7FFF;--accent-ink:#FFFFFF}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--ink);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}a{color:inherit}.page{max-width:1040px;margin:0 auto;padding:32px 24px 64px}.topbar{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;border-bottom:1px solid var(--border);margin-bottom:8px}.brand{font-weight:700;font-size:15px;letter-spacing:-.01em}.brand span{font-weight:500;margin-left:8px}.brand span,.signout-btn{color:var(--ink-dim);font-size:12px}.signout-btn{background:transparent;border:1px solid var(--border);border-radius:8px;padding:6px 12px;cursor:pointer}.signout-btn:hover{color:var(--ink);border-color:var(--ink-dim)}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));grid-gap:14px;gap:14px;margin-top:24px}.card{display:block;background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:18px;text-decoration:none;transition:border-color .15s ease}.card:hover{border-color:var(--accent)}.card-title{font-size:15px;font-weight:600;margin:0 0 6px}.card-repo{font-size:11px;color:var(--accent);font-family:monospace;margin:0 0 8px}.card-notes{font-size:12.5px;color:var(--ink-dim);line-height:1.5;margin:0}.doc-links{display:flex;gap:8px;margin-top:14px;flex-wrap:wrap}.doc-link{font-size:11.5px;font-weight:600;text-decoration:none;padding:5px 10px;border-radius:999px;border:1px solid var(--border);transition:border-color .15s ease,color .15s ease}.doc-link.guide{color:var(--accent);border-color:var(--accent)}.doc-link.guide:hover{background:var(--accent);color:var(--accent-ink)}.doc-link.reference{color:var(--ink-dim)}.doc-link.reference:hover{border-color:var(--ink-dim);color:var(--ink)}.dropped-note{margin-top:28px;padding:14px 16px;border:1px dashed var(--border);border-radius:12px;font-size:12.5px;color:var(--ink-dim)}.dropped-note b{color:var(--ink)}.login-shell{min-height:100vh;display:flex;align-items:center;justify-content:center}.login-card{width:100%;max-width:360px;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:28px}.login-card h1{font-size:18px;margin:0 0 4px}.login-card p.sub{font-size:13px;color:var(--ink-dim);margin:0 0 20px}.field{margin-bottom:14px}.field label{display:block;font-size:12px;color:var(--ink-dim);margin-bottom:6px}.field input{width:100%;background:var(--surface-2);border:1px solid var(--border);border-radius:8px;padding:9px 12px;color:var(--ink);font-size:13px;outline:none}.field input:focus{border-color:var(--accent)}.submit-btn{width:100%;background:var(--accent);color:var(--accent-ink);border:none;border-radius:8px;padding:10px;font-size:13px;font-weight:600;cursor:pointer;margin-top:4px}.submit-btn:disabled{opacity:.6;cursor:default}.error-box{background:#2E1414;border:1px solid #5c1f1f;color:#F87171;border-radius:8px;padding:8px 12px;font-size:12.5px;margin-bottom:14px}.back-link{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--ink-dim);text-decoration:none;margin:14px 24px 0}.back-link:hover{color:var(--ink)}.doc-frame{width:100%;height:calc(100vh - 90px);border:none;display:block}