:root{--bg: #14151a;--surface: #1d1f26;--surface-2: #262933;--border: #343846;--text: #e6e8ee;--text-muted: #9aa0ae;--accent: #7aa2f7;--ok: #4fd07a;--bad: #f27272;--mark: #665c1e;color-scheme:dark}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,Segoe UI,Roboto,Helvetica Neue,sans-serif;font-size:15px;line-height:1.55}h1{font-size:1.4rem}h2{font-size:1.05rem}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button{background:var(--accent);color:#10121a;border:0;border-radius:6px;padding:8px 14px;font-size:14px;font-weight:600;cursor:pointer}button:disabled{opacity:.5;cursor:default}button.danger{background:var(--bad)}button.link{background:none;color:var(--accent);padding:0;font-weight:500}button.link.danger{color:var(--bad)}input,select,textarea{background:var(--surface-2);border:1px solid var(--border);border-radius:6px;color:var(--text);padding:8px 10px;font-size:14px;width:100%}label{display:block;margin-bottom:12px;font-size:13px;color:var(--text-muted)}label input{margin-top:4px}label.checkbox{display:flex;align-items:center;gap:8px;color:var(--text)}label.checkbox input{width:auto;margin:0}.muted{color:var(--text-muted)}.small{font-size:12.5px}.error{color:var(--bad)}.success{color:var(--ok)}.callout{background:var(--surface-2);border:1px solid var(--border);border-left:3px solid var(--accent);border-radius:6px;padding:10px 14px}.badge{display:inline-block;padding:1px 8px;border-radius:999px;font-size:12px;background:var(--surface-2);border:1px solid var(--border)}.badge.ok{color:var(--ok);border-color:var(--ok)}.badge.bad{color:var(--bad);border-color:var(--bad)}.shell{display:flex;flex-direction:column;min-height:100vh}.topbar{display:flex;justify-content:space-between;align-items:center;padding:0 20px;height:52px;background:var(--surface);border-bottom:1px solid var(--border)}.topbar nav{display:flex;align-items:center;gap:18px}.topbar nav a{color:var(--text-muted);font-weight:500}.topbar nav a.active{color:var(--text)}.topbar .brand{font-weight:700;margin-right:8px}.topbar-right{display:flex;align-items:center;gap:12px}main{flex:1}.page{max-width:960px;margin:0 auto;padding:24px 20px 60px}.page-header{display:flex;justify-content:space-between;align-items:center}.card{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:18px 20px;margin:18px 0;max-width:640px}.row{display:flex;gap:10px;align-items:center}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center}.auth-card{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:28px;width:360px}.auth-card h1{margin-top:0}.auth-card button{width:100%;margin-top:6px}.auth-card button.link{width:auto;margin-top:12px}.backup-codes pre,.totp-setup pre{background:var(--surface-2);border:1px solid var(--border);border-radius:6px;padding:10px 14px;font-size:13px;letter-spacing:1px}.totp-setup img{background:#fff;border-radius:6px;padding:6px;margin:8px 0}.totp-setup li{margin-bottom:14px}.book-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px;margin-top:18px}.book-card{display:flex;gap:14px;background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:14px}.book-cover img,.cover-placeholder{width:72px;height:104px;object-fit:cover;border-radius:4px;background:var(--surface-2)}.cover-placeholder{display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;color:var(--text-muted)}.book-meta{display:flex;flex-direction:column;gap:4px;min-width:0}.book-title{font-weight:600;color:var(--text)}.book-meta .link{align-self:flex-start}.reader{display:grid;grid-template-columns:280px 1fr;height:calc(100vh - 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