:root{--bg: #f7f7f8;--surface: #ffffff;--surface-2: #f0f0f2;--border: #e2e2e6;--text: #1c1c1e;--muted: #6b6b72;--primary: #4f46e5;--primary-text: #ffffff;--danger: #dc2626;--reading: #2563eb;--finished: #16a34a;--unread: #8a8a90;--radius: 12px;--shadow: 0 1px 3px rgba(0, 0, 0, .08), 0 1px 2px rgba(0, 0, 0, .04)}@media (prefers-color-scheme: dark){:root{--bg: #161618;--surface: #1f1f23;--surface-2: #2a2a30;--border: #34343a;--text: #ececf1;--muted: #9a9aa3;--primary: #6366f1;--reading: #60a5fa;--finished: #4ade80;--unread: #8a8a90;--shadow: 0 1px 3px rgba(0, 0, 0, .4)}}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}.muted{color:var(--muted)}.error{color:var(--danger);font-size:.9rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;min-height:44px;padding:0 1rem;border:1px solid var(--border);border-radius:10px;background:var(--surface);color:var(--text);font-size:.95rem;font-weight:500;cursor:pointer;text-decoration:none;transition:background .15s,border-color .15s,opacity .15s}.btn:hover{background:var(--surface-2)}.btn:disabled{opacity:.45;cursor:not-allowed}.btn-primary{background:var(--primary);border-color:var(--primary);color:var(--primary-text)}.btn-primary:hover{background:var(--primary);filter:brightness(1.08)}.btn-ghost{background:transparent;border-color:transparent}.btn-ghost:hover{background:var(--surface-2)}.btn-github{background:#24292f;border-color:#24292f;color:#fff}.icon-btn{min-width:44px;padding:0;font-size:1.2rem}.center{min-height:100%;display:grid;place-items:center;padding:1.5rem}.center-text{text-align:center}.login-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:2.5rem 2rem;max-width:360px;text-align:center}.login-logo{font-size:3rem}.login-card h1{margin:.5rem 0;font-size:1.5rem}.login-card p{margin-bottom:1.5rem}.login-card .btn{width:100%}.page{max-width:1100px;margin:0 auto;padding:0 1rem 3rem}.topbar{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:1rem 0;position:sticky;top:0;background:var(--bg);z-index:5}.brand{display:flex;align-items:center;gap:.5rem;font-weight:700;font-size:1.15rem}.brand-logo{font-size:1.4rem}.topbar-right{display:flex;align-items:center;gap:.75rem}.user{display:flex;align-items:center;gap:.5rem}.avatar{width:32px;height:32px;border-radius:50%;border:1px solid var(--border)}.content{padding-top:.5rem}.empty{text-align:center;padding:4rem 1rem}.empty-emoji{font-size:3rem;margin:0}.book-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:1rem}.book-card{position:relative;display:flex;gap:1rem;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:1rem;cursor:pointer;transition:transform .12s,border-color .12s}.book-card:hover{transform:translateY(-2px);border-color:var(--primary)}.book-cover{flex:0 0 56px;height:80px;border-radius:8px;background:linear-gradient(135deg,var(--primary),#9333ea);color:#fff;display:grid;place-items:center;font-size:1.8rem;font-weight:700}.book-body{flex:1;min-width:0}.book-head{display:flex;align-items:flex-start;justify-content:space-between;gap:.5rem}.book-title{flex:1;min-width:0;margin:0;font-size:1rem;line-height:1.3;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.book-author{margin:.15rem 0 .6rem;font-size:.85rem;color:var(--muted)}.book-meta{display:flex;align-items:center;gap:.5rem;font-size:.78rem;margin-top:.6rem}.book-pages{color:var(--muted);white-space:nowrap}.book-date{margin-left:auto;color:var(--muted);white-space:nowrap}.book-delete{flex:0 0 auto;min-width:32px;min-height:32px;padding:0;border:none;background:transparent;border-radius:8px;font-size:.95rem;line-height:1;opacity:.5;cursor:pointer}.book-delete:hover{opacity:1;background:var(--surface-2)}.badge{flex:0 0 auto;font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.03em;padding:.15rem .5rem;border-radius:999px;color:#fff}.badge-unread{background:var(--unread)}.badge-reading{background:var(--reading)}.badge-finished{background:var(--finished)}.progress-bar{height:6px;background:var(--surface-2);border-radius:999px;overflow:hidden}.progress-fill{height:100%;background:var(--primary);border-radius:999px;transition:width .3s}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;display:grid;place-items:center;padding:1rem;z-index:20}.modal{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;width:100%;max-width:420px;box-shadow:var(--shadow)}.modal h2{margin-top:0}.form{display:flex;flex-direction:column;gap:1rem}.field{display:flex;flex-direction:column;gap:.35rem;font-size:.85rem;font-weight:500}.field input{min-height:44px;padding:0 .75rem;border:1px solid var(--border);border-radius:10px;background:var(--bg);color:var(--text);font-size:.95rem}.field input[type=file]{padding:.5rem}.field small{font-weight:400;font-size:.75rem}.or-divider{display:flex;align-items:center;text-align:center;color:var(--muted);font-size:.78rem;text-transform:uppercase;letter-spacing:.05em}.or-divider:before,.or-divider:after{content:"";flex:1;height:1px;background:var(--border)}.or-divider span{padding:0 .75rem}.modal-actions{display:flex;justify-content:flex-end;gap:.75rem}.reader{display:flex;flex-direction:column;height:100vh;height:100dvh}.reader-bar{display:flex;align-items:center;gap:1rem;padding:.5rem .75rem;border-bottom:1px solid var(--border);background:var(--surface)}.reader-title{flex:1;min-width:0;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.reader-stats{display:flex;gap:1rem}.stat{display:flex;flex-direction:column;align-items:center;line-height:1.1}.stat-value{font-weight:700;font-size:.95rem}.stat-label{font-size:.65rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}.reader-canvas-wrap{flex:1;overflow:auto;padding:1rem;background:var(--bg);-webkit-overflow-scrolling:touch}.reader-canvas{display:block;margin:0 auto;background:#fff;box-shadow:var(--shadow)}.reader-controls{display:flex;align-items:center;justify-content:center;gap:.6rem;flex-wrap:wrap;padding:.6rem .75rem;border-top:1px solid var(--border);background:var(--surface);padding-bottom:max(.6rem,env(safe-area-inset-bottom))}.nav-btn{min-width:90px}.page-jump{display:flex;align-items:center;gap:.4rem}.page-jump input{width:64px;min-height:44px;text-align:center;border:1px solid var(--border);border-radius:10px;background:var(--bg);color:var(--text);font-size:.95rem}.zoom-controls{display:flex;gap:.4rem}.save-indicator{font-size:.75rem;color:var(--muted);min-width:56px;text-align:center}.save-indicator.saving{color:var(--primary)}@media (max-width: 560px){.hide-mobile{display:none}.reader-stats{gap:.6rem}.nav-btn{min-width:70px}}