:root{--ink:#17211e;--ink-soft:#5d6862;--paper:#f6f0e6;--paper-deep:#ebe0cf;--panel:#fffaefe6;--line:#23312c29;--green:#1c6a55;--green-dark:#123c33;--wine:#7e1e27;--gold:#c69c52;--shadow:0 24px 70px #1c160e38;--font-display:Georgia, "Times New Roman", serif;--font-ui:"Aptos", "Segoe UI", sans-serif;color:var(--ink);font-family:var(--font-ui);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:radial-gradient(circle at 0 0,#c69c5247,#0000 28rem),linear-gradient(135deg,#f8f1e5 0%,#ece0ce 46%,#d8c6aa 100%)}*{box-sizing:border-box}body{min-width:320px;min-height:100vh;margin:0}button,input,textarea{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,label:focus-within{outline:2px solid var(--gold);outline-offset:3px}.app-shell{grid-template-columns:280px minmax(0,1fr);min-height:100vh;display:grid;position:relative;overflow:hidden}.viewer-shell{grid-template-columns:minmax(0,1fr);height:100dvh;min-height:100dvh;overflow:hidden}.app-shell:before{pointer-events:none;content:"";background-image:linear-gradient(#17211e0a 1px,#0000 1px),linear-gradient(90deg,#17211e0a 1px,#0000 1px);background-size:42px 42px;position:fixed;inset:0;-webkit-mask-image:linear-gradient(#000000b3,#0000);mask-image:linear-gradient(#000000b3,#0000)}.control-rail{z-index:5;border-right:1px solid var(--line);-webkit-backdrop-filter:blur(22px);backdrop-filter:blur(22px);background:#f6f0e6d6;flex-direction:column;gap:22px;min-height:100vh;padding:24px;display:flex}.brand-block{align-items:center;gap:14px;display:flex}.brand-mark{color:#fff8ec;background:linear-gradient(135deg, var(--green), var(--green-dark));width:52px;height:52px;font:700 18px/1 var(--font-display);border-radius:8px;place-items:center;display:grid;box-shadow:0 16px 36px #123c3347}.brand-block strong,.brand-block span{display:block}.brand-block strong{color:var(--ink);font-size:17px}.brand-block span,.topline,.reader-bottombar,.book-stats span{color:var(--ink-soft);letter-spacing:.08em;text-transform:uppercase;font-size:12px}.rail-group{gap:10px;display:grid}.rail-group button,.rail-group a,.upload-tile{border:1px solid var(--line);min-height:44px;color:var(--ink);cursor:pointer;background:#fffaefb8;border-radius:8px;justify-content:flex-start;align-items:center;gap:10px;padding:11px 12px;text-decoration:none;transition:transform .18s,border-color .18s,background .18s;display:flex}.rail-group button:hover,.rail-group a:hover,.upload-tile:hover{background:#fffaf0;border-color:#1c6a556b;transform:translateY(-1px)}.rail-group svg,.toolbar svg,.share-card svg{flex:none;width:18px;height:18px}.upload-tile input{opacity:0;width:1px;height:1px;position:absolute}.upload-tile.subtle span{text-overflow:ellipsis;white-space:nowrap;max-width:190px;overflow:hidden}.book-stats{border:1px solid var(--line);background:#fffaef94;border-radius:8px;margin-top:auto;padding:18px}.book-stats strong{font:600 30px/1 var(--font-display);margin-top:8px;display:block}.reader-stage{z-index:1;min-width:0;min-height:100dvh;padding:max(18px, env(safe-area-inset-top)) 26px max(18px, env(safe-area-inset-bottom)) 26px;grid-template-rows:auto minmax(0,1fr) auto;display:grid;position:relative}.viewer-shell .reader-stage{height:100dvh;min-height:0;padding-inline:clamp(18px,4vw,52px);overflow:hidden}.admin-link{color:#fff8ec;background:linear-gradient(135deg, var(--green), var(--green-dark));width:44px;height:44px;font:700 15px/1 var(--font-display);border-radius:8px;flex:none;place-items:center;text-decoration:none;display:grid;box-shadow:0 14px 30px #123c3333}.reader-topbar{justify-content:space-between;align-items:center;gap:18px;width:100%;min-width:0;display:flex;overflow:hidden}.reader-topbar>div{min-width:0;max-width:100%}.reader-topbar h1{max-width:720px;color:var(--ink);font:500 clamp(30px, 4vw, 58px) / .98 var(--font-display);letter-spacing:0;overflow-wrap:anywhere;margin:5px 0 0}.viewer-shell .reader-topbar h1{max-width:920px}.toolbar{border:1px solid var(--line);background:#fffaefbd;border-radius:999px;align-items:center;gap:8px;padding:8px;display:flex;box-shadow:0 12px 34px #1c160e1a}.toolbar button,.reader-bottombar button,.share-modal button{min-width:38px;min-height:38px;color:var(--ink);cursor:pointer;background:0 0;border:0;border-radius:999px;place-items:center;display:inline-grid}.toolbar button:hover,.toolbar button.is-active,.reader-bottombar button:hover,.share-modal button:hover{background:#1c6a551f}.toolbar button:disabled,.reader-bottombar button:disabled{cursor:not-allowed;opacity:.45}.book-wrap{place-items:center;min-height:0;padding:clamp(10px,2vh,22px) 0;display:grid;position:relative;overflow:hidden}.viewer-shell .book-wrap{height:100%;padding:clamp(6px,1.5vh,16px) 0}.book-viewport{touch-action:pan-y;place-items:center;width:100%;height:100%;min-height:min(64vh,760px);display:grid;overflow:hidden}.viewer-shell .book-viewport{min-height:0}.book-viewport.is-zoomed{cursor:grab;touch-action:none}.book-viewport.is-zoomed .stf__parent,.book-viewport.is-zoomed .stf__wrapper,.book-viewport.is-zoomed .stf__block,.book-viewport.is-zoomed .stf__item{pointer-events:none}.book-viewport.is-zoomed:active{cursor:grabbing}.book-transform{width:100%;height:100%;transform:translate3d(var(--book-pan-x,0), var(--book-pan-y,0), 0) scale(var(--book-zoom,1));transform-origin:50%;will-change:transform;place-items:center;transition:transform .16s;display:grid}.book-viewport.is-zoomed .book-transform{transition:none}.book-slot{width:var(--book-slot-width,min(100%, 1280px));height:var(--book-slot-height,min(62vh, 760px));place-self:center;place-items:center;max-width:100%;max-height:100%;display:grid}.book-slot .stf__parent,.book-slot .stf__wrapper,.book-slot .stf__block{width:100%;height:100%}.book-slot .stf__wrapper{transition:transform .22s}.book-slot.is-front-cover .stf__wrapper{transform:translate(-25%)}.book-slot.is-back-cover .stf__wrapper{transform:translate(25%)}.book-slot.is-compact-spread .stf__wrapper{max-width:100%}.flip-shell{width:100%;height:100%;filter:drop-shadow(var(--shadow))}.flip-page{background:#fff;border-radius:3px;overflow:hidden}.flip-page img{object-fit:contain;-webkit-user-select:none;user-select:none;width:100%;height:100%;display:block}.loading-panel{z-index:4;border:1px solid var(--line);background:var(--panel);width:min(420px,100vw - 48px);box-shadow:var(--shadow);text-align:center;border-radius:8px;gap:12px;padding:28px;display:grid;position:absolute}.loading-panel svg{width:34px;height:34px;color:var(--green);margin:0 auto}.loading-orbit{border:3px solid #1c6a5529;border-top-color:var(--green);border-radius:999px;width:38px;height:38px;margin:0 auto;animation:.9s linear infinite orbit-spin}.progress-track{background:#17211e1f;border-radius:999px;height:8px;overflow:hidden}.progress-track div{border-radius:inherit;background:linear-gradient(90deg, var(--green), var(--gold));height:100%;transition:width .2s}.error-panel{color:#68161d}.reader-bottombar{grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;gap:8px;padding-top:8px;display:grid}.viewer-shell .reader-bottombar{padding-top:0;padding-bottom:max(6px, env(safe-area-inset-bottom));align-self:end}.reader-bottombar .toolbar{grid-column:2;position:static}.jump-controls{justify-self:end;align-items:center;gap:8px;display:flex}.page-mode-group{align-items:center;gap:8px;display:inline-flex}.layout-toggle-group{border:1px solid var(--line);background:#fffaef94;border-radius:999px;gap:6px;padding:3px;display:inline-flex}.layout-toggle{min-width:66px;min-height:30px;padding:0 12px;font-size:12px}.layout-toggle.is-active{color:#fff8ec;background:var(--green)}.viewer-page-pill{border:1px solid var(--line);background:#fffaef94;border-radius:999px;align-items:center;min-height:34px;padding:0 14px;display:inline-grid}.viewer-page-pill strong{font:600 16px/1 var(--font-display)}.reader-bottombar button{border:1px solid var(--line);background:#fffaef94;min-width:auto;min-height:34px;padding:0 14px}.mobile-spread-toggle{display:none}.mobile-spread-toggle button.is-active{color:#fff8ec;background:var(--green)}.viewer-page-stats{border:1px solid var(--line);background:#fffaef94;border-radius:999px;justify-self:start;gap:3px;min-width:124px;padding:8px 14px;display:grid}.viewer-page-stats span{color:var(--ink-soft);letter-spacing:.08em;text-transform:uppercase;font-size:10px}.viewer-page-stats strong{font:600 18px/1 var(--font-display)}.thumb-drawer{z-index:8;border:1px solid var(--line);width:210px;box-shadow:var(--shadow);background:#fffaefeb;border-radius:8px;gap:10px;padding:12px;display:grid;position:fixed;top:98px;bottom:84px;right:24px;overflow:auto}.thumb-drawer button{cursor:pointer;background:#fff;border:2px solid #0000;border-radius:6px;padding:0;position:relative;overflow:hidden}.thumb-drawer button.is-selected{border-color:var(--green)}.thumb-drawer img{width:100%;display:block}.thumb-drawer span{color:#fff8ec;background:#123c33e0;border-radius:999px;place-items:center;min-width:28px;height:24px;font-size:12px;display:grid;position:absolute;bottom:8px;right:8px}.modal-backdrop{z-index:20;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#141b187a;place-items:center;padding:24px;display:grid;position:fixed;inset:0}.share-modal{background:var(--paper);border:1px solid #fffaef66;border-radius:10px;width:min(980px,100%);max-height:min(760px,100vh - 48px);padding:24px;overflow:auto;box-shadow:0 28px 90px #0c121061}.share-modal header{justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:20px;display:flex}.share-modal h2{font:500 34px/1 var(--font-display);margin:4px 0 0}.share-modal header button{border:1px solid var(--line);min-width:auto;padding:0 16px}.share-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;display:grid}.share-card{border:1px solid var(--line);min-height:142px;color:var(--ink);background:#fffaefb8;border-radius:8px;gap:12px;padding:18px;text-decoration:none;display:grid}.share-card.wide{grid-column:span 2}.share-preview-card{grid-template-columns:132px minmax(0,1fr);align-items:center}.share-preview-card strong{font:500 26px/1.04 var(--font-display);margin-top:6px;display:block}.share-cover-image{border-radius:6px;width:100%;box-shadow:0 14px 30px #1c160e2e}.share-card code,.share-card textarea{overflow-wrap:anywhere;border:1px solid var(--line);width:100%;color:var(--ink);background:#ffffff94;border-radius:6px;padding:12px;font:13px/1.45 Consolas,monospace}.share-card textarea{resize:vertical;min-height:92px}.share-card button{border:1px solid var(--line);background:#1c6a551a;justify-content:center;align-items:center;gap:8px;width:fit-content;min-width:auto;padding:0 14px;display:inline-flex}.qr-image{border-radius:6px;width:132px}@media (width<=980px){.app-shell{grid-template-columns:1fr}.viewer-shell .reader-stage{height:100svh;min-height:0}.control-rail{border-right:0;border-bottom:1px solid var(--line);min-height:auto;padding:14px;position:sticky;top:0}.brand-block{display:none}.rail-group{grid-template-columns:repeat(3,minmax(0,1fr))}.rail-group:first-of-type{grid-template-columns:1fr}.reader-stage{min-height:0;padding:max(12px, env(safe-area-inset-top)) 18px max(12px, env(safe-area-inset-bottom)) 18px}.reader-topbar{flex-direction:column;align-items:flex-start}.viewer-shell .reader-topbar{gap:6px}.reader-topbar h1{max-width:100%}.toolbar{justify-content:space-between;width:100%}.book-slot{min-height:min(58vh,620px)}.book-slot.is-compact-spread{width:100%}.book-stats{margin-top:0;padding:10px 12px}.book-stats strong{margin-top:3px;font-size:22px}.reader-bottombar{grid-template-columns:1fr;align-items:center}.viewer-shell .reader-bottombar{gap:6px}.viewer-page-stats{justify-self:center}.reader-bottombar .toolbar{grid-column:1}.jump-controls{flex-wrap:wrap;grid-column:1;justify-self:center}.share-grid{grid-template-columns:1fr}.share-card.wide{grid-column:auto}}@media (width<=620px){.rail-group{grid-template-columns:1fr 1fr}.rail-group button,.rail-group a,.upload-tile{justify-content:center;min-height:42px;padding:9px;font-size:13px}.reader-stage{padding:max(10px, env(safe-area-inset-top)) 12px max(10px, env(safe-area-inset-bottom)) 12px}.viewer-shell .reader-stage{padding:max(8px, env(safe-area-inset-top)) 10px max(8px, env(safe-area-inset-bottom)) 10px}.reader-topbar h1{white-space:nowrap;text-overflow:ellipsis;max-width:100%;font-size:clamp(18px,5.8vw,24px);line-height:1;overflow:hidden}.viewer-shell .reader-topbar h1{font-size:clamp(18px,5.8vw,24px);line-height:1}.viewer-shell .book-wrap{padding-block:6px}.book-slot.is-compact-spread{min-height:46vh}.book-slot.is-front-cover .stf__wrapper,.book-slot.is-back-cover .stf__wrapper{transform:none}.viewer-shell .toolbar{gap:5px;padding:6px}.viewer-shell .toolbar button{min-width:34px;min-height:34px;padding:0}.viewer-shell .jump-controls button{min-height:30px;padding:0 10px;font-size:12px}.layout-toggle-group{gap:4px;padding:2px}.layout-toggle{min-width:58px;min-height:28px;padding:0 10px}.viewer-page-stats{min-width:106px;padding:6px 12px}.share-preview-card{grid-template-columns:92px minmax(0,1fr)}.share-preview-card strong{font-size:22px}.thumb-drawer{grid-template-columns:repeat(3,minmax(0,1fr));width:auto;max-height:46vh;inset:auto 12px 12px}}@keyframes orbit-spin{to{transform:rotate(360deg)}}