@import"https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Noto+Sans+KR:wght@400;500;600;700;800&display=swap";:root{font-family:DM Sans,Noto Sans KR,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}*{box-sizing:border-box}body{margin:0;min-width:320px}button,input{font:inherit}button{cursor:pointer}button:disabled{cursor:default;opacity:.32}svg{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.hidden{display:none!important}.app{--bg:#101725;--panel:#172133;--modal:#1d293c;--stroke:#ffffff1b;--text:#f4f6fc;--muted:#a4aec2;--subtle:#6e7c97;--hover:#ffffff12;--selected:#4f83ff;--field:#111b2d;--foot:#101828;--book-back:#263348;--shadow:0 18px 68px #0008;background:var(--bg);color:var(--text);width:100%;height:100dvh;min-height:260px;display:flex;flex-direction:column;overflow:hidden;transition:background .2s,color .2s}.app[data-theme=light]{--bg:#f0f2f7;--panel:#fff;--modal:#fff;--stroke:#2437541c;--text:#19253b;--muted:#66758e;--subtle:#8994a7;--hover:#1c4a9010;--selected:#315edb;--field:#f1f4f9;--foot:#fff;--book-back:#dce3ee;--shadow:0 20px 70px #2030502e}.topbar{height:68px;flex:0 0 68px;background:var(--panel);border-bottom:1px solid var(--stroke);padding:0 27px;display:grid;grid-template-columns:1fr minmax(0,1.2fr) 1fr;align-items:center;position:relative;z-index:2}.topbar-side{display:flex;align-items:center;gap:17px;min-width:0}.right-side{justify-content:flex-end;gap:9px}.icon-button{display:grid;place-items:center;width:39px;height:39px;flex:none;border:1px solid transparent;background:transparent;color:var(--text);border-radius:10px;transition:.15s ease}.icon-button:hover,.icon-button:focus-visible{background:var(--hover);border-color:var(--stroke)}.icon-button svg{width:20px;height:20px}.letter-button{background:var(--hover);border-color:var(--stroke);font-size:15px;font-weight:800;letter-spacing:.01em}.header-divider{height:23px;width:1px;background:var(--stroke)}.brand{display:flex;align-items:center;gap:10px;white-space:nowrap;font-size:13px;font-weight:800;letter-spacing:.15em}.brand-mark{width:27px;height:27px;border:1.5px solid #7397ff;border-radius:8px;display:grid;place-items:center;color:#80a0ff;font-size:16px;line-height:1}.brand-light{font-weight:400;opacity:.6}.header-center{display:flex;flex-direction:column;text-align:center;gap:3px;min-width:0}.book-title{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:14px;font-weight:750}.book-subtitle{font-size:10px;color:var(--subtle);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.source-badge{font-size:10px;font-weight:650;border:1px solid var(--stroke);border-radius:6px;padding:6px 9px;color:var(--muted);white-space:nowrap}.viewer{position:relative;flex:1;min-height:0;isolation:isolate;display:flex;justify-content:center;align-items:center;overflow:hidden;background:radial-gradient(ellipse at 51% 12%,#31518029 0,transparent 52%),var(--bg)}.viewer-glow{pointer-events:none;position:absolute;inset:auto 20% -36%;height:45%;background:radial-gradient(ellipse,#4775ba19,transparent 70%);z-index:-1}.welcome{width:min(520px,calc(100% - 35px));padding:30px 10px 44px;display:flex;flex-direction:column;align-items:center;text-align:center;position:relative;z-index:1}.welcome-icon{height:103px;width:103px;margin-bottom:25px;border-radius:30px;border:1px solid #84aaff40;background:linear-gradient(145deg,#678afd32,#5278ff0a);display:grid;place-items:center;color:#9bb8ff;box-shadow:0 16px 60px #407fff1a}.welcome-icon svg{height:53px;width:53px;stroke-width:1.4}.eyebrow{font-weight:800;letter-spacing:.22em;font-size:10px;margin:0;color:#86a7fb}.welcome h1{font-size:clamp(27px,4vw,38px);letter-spacing:-.065em;margin:13px 0 7px;font-weight:800}.welcome-copy{margin:0 0 27px;font-size:13px;line-height:1.9;color:var(--muted)}.primary-button{border:1px solid #5e8aff;background:linear-gradient(140deg,#537fff,#315fe3);color:#fff;min-height:43px;padding:0 21px;border-radius:10px;font-size:13px;font-weight:750;display:inline-flex;align-items:center;justify-content:center;gap:9px;box-shadow:0 8px 20px #295eff25}.primary-button:hover{filter:brightness(1.11)}.primary-button svg{height:17px;width:17px}.welcome-tip{font-size:10px;color:var(--subtle);margin:18px 0 0}.reading-area{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}.pages-viewport{position:absolute;inset:20px 83px 23px;display:flex;align-items:center;justify-content:center;min-height:0;min-width:0}.spread{max-width:100%;max-height:100%;display:flex;gap:0;align-items:center;justify-content:center;filter:drop-shadow(0 13px 20px #0005);position:relative}.spread:has(.page:nth-child(2)):after{content:"";z-index:2;pointer-events:none;position:absolute;left:50%;top:0;bottom:0;width:2px;transform:translate(-50%);background:linear-gradient(90deg,#0002,#fff8,#0003)}.page{position:relative;flex:none;display:flex;align-items:center;justify-content:center;background:#fff;box-shadow:0 0 0 1px #0002;overflow:hidden}.page canvas{display:block;max-width:100%;max-height:100%}.page-placeholder{width:100%;height:100%;background:linear-gradient(115deg,#f7f7f7,#eee,#f7f7f7);background-size:200% 100%;animation:shimmer 1.8s linear infinite}.page-number{position:absolute;bottom:7px;left:11px;font-size:10px;color:#666;background:#ffffffd9;border-radius:3px;padding:2px 5px;opacity:0;transition:opacity .2s}.page:hover .page-number{opacity:1}.page-nav{position:absolute;z-index:2;top:50%;transform:translateY(-50%);width:47px;height:78px;display:grid;place-items:center;color:var(--text);border:1px solid var(--stroke);border-radius:12px;background:var(--panel);box-shadow:0 8px 20px #0002;transition:background .15s,transform .15s}.page-nav:not(:disabled):hover{background:var(--hover);transform:translateY(-50%) scale(1.04)}.page-nav-prev{left:22px}.page-nav-next{right:22px}.page-nav svg{height:25px;width:25px}.render-indicator{position:absolute;bottom:17px;left:50%;transform:translate(-50%);z-index:4;display:flex;gap:8px;align-items:center;background:var(--modal);color:var(--text);box-shadow:var(--shadow);border:1px solid var(--stroke);border-radius:999px;padding:9px 13px;font-size:11px;white-space:nowrap}.spinner{height:13px;width:13px;border:2px solid #5f85fc50;border-top-color:#80a4ff;border-radius:50%;animation:spin .7s linear infinite}.drop-hint{position:absolute;inset:15px;z-index:12;pointer-events:none;display:grid;place-items:center;background:#345dda43;border:2px dashed #a6bfff;border-radius:18px;-webkit-backdrop-filter:blur(7px);backdrop-filter:blur(7px);font-weight:800;font-size:17px;color:#fff}.footer{height:52px;flex:0 0 52px;border-top:1px solid var(--stroke);background:var(--foot);display:grid;grid-template-columns:1fr 1fr 1fr;align-items:center;padding:0 28px;position:relative;z-index:2;gap:10px;font-size:11px;color:var(--muted)}.footer-left,.footer-center,.footer-right{display:flex;gap:9px;align-items:center;white-space:nowrap}.footer-center{justify-content:center;color:var(--text);font-weight:750}.footer-right{justify-content:flex-end}.status-dot{height:6px;width:6px;border-radius:50%;background:#4fcd9b;box-shadow:0 0 0 3px #4fcd9b22}.status-dot.error{background:#ff7886;box-shadow:0 0 0 3px #ff788622}.footer-separator{color:var(--subtle);font-size:10px;font-weight:500}.footer-divider{height:14px;width:1px;background:var(--stroke)}.keyboard-tip{color:var(--subtle)}.modal-layer{position:fixed;inset:0;z-index:30;display:grid;place-items:center;padding:16px}.modal-backdrop{position:absolute;inset:0;background:#060d19b9;-webkit-backdrop-filter:blur(7px);backdrop-filter:blur(7px)}.dialog{width:min(530px,calc(100vw - 28px));max-height:min(760px,calc(100dvh - 30px));overflow-y:auto;position:relative;z-index:1;background:var(--modal);border:1px solid var(--stroke);box-shadow:var(--shadow);border-radius:19px;padding:26px;scrollbar-width:thin}.dialog-header{display:flex;align-items:start;justify-content:space-between;gap:15px}.dialog-header h2{font-size:22px;letter-spacing:-.055em;margin:6px 0 0}.dialog-header .close-dialog{margin:-8px -8px 0 0}.setting-group{margin-top:23px}.setting-heading{display:flex;align-items:center;gap:9px;margin-bottom:13px}.setting-heading svg{width:17px;height:17px;color:#83a4ff}.setting-heading h3{font-size:13px;font-weight:750;margin:0}.segmented{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:4px;padding:4px;border:1px solid var(--stroke);background:var(--field);border-radius:11px}.segmented button{background:transparent;border:1px solid transparent;border-radius:7px;min-height:36px;color:var(--muted);font-size:12px;font-weight:650}.segmented button.active{color:var(--text);background:var(--modal);box-shadow:0 3px 10px #0002;border-color:var(--stroke)}.view-choices{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.choice-card{min-width:0;text-align:left;padding:12px;border:1.5px solid var(--stroke);border-radius:11px;background:var(--field);color:var(--text);display:flex;flex-direction:column;gap:4px;font-size:12px;font-weight:750}.choice-card.selected{border-color:var(--selected);background:color-mix(in srgb,var(--selected) 10%,var(--field))}.choice-card small{color:var(--muted);font-size:10px;font-weight:400}.choice-visual{height:56px;width:100%;display:flex;align-items:center;justify-content:center;gap:1px;margin-bottom:6px;border-radius:6px;background:var(--book-back)}.choice-visual i{display:block;background:#fdfdfd;width:33px;height:45px;box-shadow:0 1px 4px #0002}.one-visual i{width:33px}.two-visual i{width:29px}.setting-note{margin:9px 0 0;line-height:1.6;color:var(--subtle);font-size:10px}.quality-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:7px}.quality-grid button{min-height:63px;display:flex;flex-direction:column;justify-content:center;gap:7px;align-items:center;padding:7px 3px;background:var(--field);color:var(--text);border:1.5px solid var(--stroke);border-radius:9px;font-weight:750;font-size:11px;white-space:nowrap}.quality-grid button.selected{border-color:var(--selected);background:color-mix(in srgb,var(--selected) 10%,var(--field))}.quality-grid small{color:var(--muted);font-weight:400;font-size:9px}.settings-done{width:100%;margin-top:24px}.jump-dialog{width:min(420px,calc(100vw - 30px))}.jump-dialog form{margin-top:24px}.jump-dialog label{display:block;font-size:12px;font-weight:650;margin-bottom:8px}.page-field{display:flex;align-items:center;border:1px solid var(--stroke);background:var(--field);border-radius:9px;padding:0 15px}.page-field:focus-within{border-color:var(--selected)}.page-field input{appearance:textfield;min-width:0;flex:1;height:49px;border:0;outline:0;background:transparent;color:var(--text);font-size:20px;font-weight:750}.page-field input::-webkit-inner-spin-button,.page-field input::-webkit-outer-spin-button{-webkit-appearance:none}.page-field span{font-size:13px;color:var(--muted)}.form-error{color:#ff8b97;font-size:11px;margin:10px 0 0}.dialog-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:22px}.secondary-button{padding:0 18px;border-radius:9px;min-height:43px;background:var(--hover);color:var(--text);border:1px solid var(--stroke);font-size:12px;font-weight:750}.toast{position:fixed;z-index:100;left:50%;bottom:66px;transform:translate(-50%);max-width:min(500px,calc(100% - 30px));padding:11px 17px;border-radius:10px;background:#1b2c45;border:1px solid #7895c844;box-shadow:0 12px 40px #0008;font-size:12px;color:#fff;line-height:1.6;text-align:center}.toast.error{border-color:#ff6d7b80;background:#482531}.rotate-cover{display:none}@keyframes spin{to{transform:rotate(360deg)}}@keyframes shimmer{to{background-position:-200% 0}}@media(max-width:850px){.topbar{height:49px;flex-basis:49px;padding:0 11px;grid-template-columns:1fr minmax(0,1fr) 1fr}.topbar-side{gap:8px}.icon-button{width:34px;height:34px}.brand{font-size:11px;gap:6px}.brand-light,.header-divider,.source-badge,.book-subtitle{display:none}.brand-mark{width:22px;height:22px;font-size:12px}.book-title{font-size:11px}.page-nav{width:39px;height:58px;border-radius:9px}.page-nav-prev{left:8px}.page-nav-next{right:8px}.pages-viewport{inset:8px 51px 9px}.footer{height:34px;flex-basis:34px;padding:0 12px;grid-template-columns:1fr 1fr 1fr;font-size:10px}.keyboard-tip,.footer-divider,.footer-separator{display:none}.dialog{padding:17px 20px}.setting-group{margin-top:17px}.dialog-header h2{font-size:19px}.setting-heading{margin-bottom:9px}.choice-visual{height:44px}.choice-visual i{height:36px;width:24px}.quality-grid button{min-height:52px}.settings-done{margin-top:18px}.toast{bottom:42px}}@media(max-height:500px){.welcome{padding:7px}.welcome-icon{width:54px;height:54px;border-radius:18px;margin-bottom:6px}.welcome-icon svg{width:30px;height:30px}.welcome h1{font-size:23px;margin:5px 0}.welcome-copy{margin-bottom:12px;font-size:11px;line-height:1.6}.welcome-tip{margin-top:9px}.welcome .eyebrow{font-size:8px}.dialog{max-height:calc(100dvh - 20px)}}@media(orientation:portrait)and (pointer:coarse){.rotate-cover{position:fixed;z-index:200;inset:0;background:#121b2b;color:#fff;display:flex;align-items:center;justify-content:center;text-align:center;flex-direction:column;padding:24px}.rotate-art{width:72px;height:72px;border:1px solid #6c94ff48;background:#6c94ff13;color:#a5baff;border-radius:22px;display:grid;place-items:center}.rotate-art svg{width:48px;height:48px}.rotate-cover h2{font-size:21px;margin:23px 0 10px;letter-spacing:-.04em}.rotate-cover p{font-size:12px;line-height:1.9;color:#afbbcd;margin:0}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}.loading-overlay{position:absolute;inset:0;z-index:9;display:flex;align-items:center;justify-content:center;padding:24px;background:var(--bg);text-align:center}.loading-panel{display:flex;flex-direction:column;align-items:center;gap:12px;width:min(360px,100%);padding:30px 25px;color:var(--text)}.loading-panel strong{font-size:clamp(17px,2.6vw,22px);font-weight:800;letter-spacing:-.05em}.loading-panel p{margin:0;color:var(--muted);font-size:12px;line-height:1.8;overflow-wrap:anywhere}.loading-spinner{display:block;width:43px;height:43px;margin-bottom:10px;border:3px solid color-mix(in srgb,var(--selected) 20%,transparent);border-top-color:var(--selected);border-radius:50%;animation:spin .8s linear infinite}.reading-area.page-loading .spread{visibility:hidden}