:root{--navy:#182444;--ink:#28354b;--muted:#738093;--gold:#bf9650;--paper:#f8f6f1;--border:#e5e6e7;--white:#fff;--shadow:0 12px 35px #1824440a}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Segoe UI","Noto Sans",Arial,sans-serif;font-size:14px}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button{border:1px solid var(--border);background:#fff;color:var(--ink);border-radius:8px;padding:9px 13px;transition:background .15s,box-shadow .15s}button:hover{background:#f0f2f6}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #c9ab74;outline-offset:3px}button:disabled{opacity:.4;cursor:default}a{color:inherit}input,select{border:1px solid var(--border);border-radius:8px;background:white;padding:10px;color:var(--ink)}[hidden]{display:none!important}.topbar{height:80px;display:flex;align-items:center;justify-content:space-between;background:var(--navy);color:white;padding:0 max(28px,calc((100vw - 1280px)/2));gap:20px}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-size:23px;font-weight:650;letter-spacing:.2px}.brand img{width:40px;height:40px}.brand small{display:block;font-weight:400;font-size:10px;letter-spacing:2px;color:#d9d9df;text-transform:uppercase;margin-top:3px}.top-actions{display:flex;align-items:center;gap:20px;font-size:12px}.top-actions .quiet{color:#fff;border-color:#ffffff30;background:transparent}.quiet{background:transparent}.welcome{max-width:1280px;margin:0 auto;padding:56px 32px 46px;display:flex;justify-content:space-between;align-items:center;gap:30px}.eyebrow{font-size:10px;font-weight:650;letter-spacing:2px;color:var(--gold)}h1,h2,p{margin:0}h1{font-size:45px;line-height:1.16;font-weight:550;letter-spacing:-1.8px;color:var(--navy);margin:15px 0 20px}.welcome p{font-size:15px;line-height:1.8;color:#6c7581}.welcome-art{position:relative;width:340px;height:240px;margin-right:70px;flex-shrink:0}.art-book{position:absolute;left:26px;top:9px;width:170px;height:225px;border-radius:3px 12px 12px 3px;background:#254c59;border-left:10px solid #193b46;box-shadow:15px 18px 24px #18244418;transform:rotate(-12deg);padding:26px 20px;color:#f4efe4;font-size:23px}.art-book:after{content:"✧";position:absolute;right:22px;bottom:47px;font-size:65px;color:#e1c487}.art-book small{font-size:10px;letter-spacing:1px}.art-book i{font-style:normal;position:absolute;bottom:18px;font-size:10px;letter-spacing:1.3px}.art-note{position:absolute;left:195px;top:57px;background:#fff1b4;padding:26px 19px 35px;transform:rotate(8deg);line-height:1.7;font-style:italic;box-shadow:0 6px 15px #1824440d;color:#736135}.art-line{position:absolute;width:160px;height:7px;border-radius:5px;background:#c98979;bottom:12px;left:207px;transform:rotate(-29deg)}.library-section{max-width:1280px;padding:0 32px 38px;margin:auto}.section-heading{display:flex;justify-content:space-between;align-items:center;border-top:1px solid #dfded8;padding-top:26px;margin-bottom:22px}.section-heading h2{font-size:25px;font-weight:550;margin-top:7px}.section-heading>span{font-size:12px;color:var(--muted)}.filters{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:20px}.tabs{display:flex;gap:5px;margin-right:auto}.tab{background:transparent;border:0;color:#79808c;font-size:13px}.tab.active{background:var(--navy);color:white}.search-label{position:relative}.search-label>span{position:absolute;left:12px;top:6px;font-size:25px;color:var(--muted)}.search-label input{padding-left:36px;width:225px}.filters select{font-size:12px}.notice{background:#edf1ed;border:1px solid #dce5da;border-radius:8px;padding:11px 15px;margin-bottom:24px;color:#59715c;font-size:12px;line-height:1.5}.book-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}.book-card{background:white;border:1px solid #e9e7e1;border-radius:13px;overflow:hidden;box-shadow:var(--shadow);transition:transform .2s}.book-card:hover{transform:translateY(-3px)}.cover-wrap{background:var(--cover-bg);height:212px;display:grid;place-items:center;position:relative;padding:20px}.book-cover{height:178px;width:127px;background:var(--book-color);border-left:7px solid #0002;border-radius:2px 7px 7px 2px;box-shadow:8px 9px 12px #18244415;position:relative;padding:16px 12px;color:white;display:flex;flex-direction:column;align-items:flex-start}.book-cover .cover-order{font-size:9px;letter-spacing:1px;opacity:.8}.book-cover .jp-title{font-size:24px;letter-spacing:1px;margin-top:21px;font-weight:500;white-space:nowrap}.book-cover .roman-title{font-size:11px;margin-top:3px}.book-cover .cover-mark{font-size:31px;position:absolute;right:13px;bottom:25px;opacity:.35}.book-cover .cover-brand{font-size:8px;margin-top:auto;letter-spacing:1.1px}.book-info{padding:19px 19px 18px}.book-meta{display:flex;justify-content:space-between;font-size:10px;color:#90949a;text-transform:uppercase;letter-spacing:.7px;margin-bottom:11px}.book-info h3{font-size:18px;font-weight:600;margin:0 0 5px;color:var(--navy)}.book-info p{font-size:12px;color:var(--muted)}.book-footer{margin-top:18px;display:flex;align-items:center;justify-content:space-between;gap:8px}.book-status{font-size:10px;padding:5px 8px;border-radius:5px;background:#eff2ed;color:#62795e;line-height:1.4}.book-status.pending{background:#f4f2ed;color:#8b8372}.open-book{background:#fff;border-color:#d9dde3;color:var(--navy);padding:8px 11px;font-size:12px}.book-card .price{font-size:12px;margin-top:10px}.empty{padding:50px;text-align:center;color:var(--muted)}footer{max-width:1216px;margin:10px auto 0;padding:25px 0;border-top:1px solid #dfded8;font-weight:600}footer span{font-size:12px;color:var(--muted);float:right;font-weight:400}.primary{background:var(--navy);color:#fff;border-color:var(--navy)}.primary:hover{background:#2e3c61}#reader{height:calc(100dvh - 80px);display:flex;flex-direction:column;background:#eceef0}.reader-heading{display:flex;align-items:center;gap:18px;background:white;padding:12px 24px;border-bottom:1px solid var(--border);min-height:64px}.reader-heading h1{font-size:19px;font-weight:600;letter-spacing:0;margin:0 0 3px}.reader-heading div>span{font-size:11px;color:var(--muted)}#save-status{font-size:11px;margin-left:auto;color:#5c7e62;max-width:200px}#save-status.error{color:#b44548}.toolbar{display:flex;align-items:center;gap:18px;background:#fff;padding:12px 24px;border-bottom:1px solid var(--border);flex-wrap:wrap;z-index:4}.tool-buttons{display:flex;gap:4px}.tool-buttons button{border:0;font-size:17px;padding:8px 10px;white-space:nowrap}.tool-buttons button span{font-size:11px;margin-left:3px}.tool-buttons .selected,.sidebar-tabs .selected{background:#edf0f6;color:#233c67}.palette{display:flex;gap:7px;min-height:26px;align-items:center}.color-dot{width:22px;height:22px;border-radius:50%;padding:0;border:2px solid white;box-shadow:0 0 0 1px #ddd}.color-dot.selected{box-shadow:0 0 0 2px #33455f;transform:scale(1.1)}.width-control{display:flex;align-items:center;gap:8px;font-size:10px;color:var(--muted);white-space:nowrap}.width-control input{width:104px;padding:0;accent-color:var(--navy)}.width-control output{min-width:26px;color:var(--ink)}.history-buttons{display:flex;gap:3px}.history-buttons button{font-size:21px;padding:2px 9px}.zoom-control{font-size:10px;color:var(--muted);margin-left:auto;white-space:nowrap}.zoom-control select{margin-left:7px;padding:7px;font-size:11px}.reader-layout{display:flex;flex:1;min-height:0}#sidebar{width:238px;background:#fff;flex-shrink:0;border-right:1px solid var(--border);overflow-y:auto}.sidebar-tabs{display:flex;border-bottom:1px solid var(--border);padding:11px 10px;gap:2px;position:sticky;top:0;background:white;z-index:2}.sidebar-tabs button{flex:1;border:0;padding:8px;font-size:11px}.sidebar-help{padding:15px 18px;color:var(--muted);font-size:11px;line-height:1.6}.chapter{display:flex;text-align:left;align-items:center;width:100%;border:0;border-radius:0;padding:13px 18px;gap:12px;background:white}.chapter.current{background:#f0f3f8;border-left:3px solid var(--gold);padding-left:15px}.chapter span:first-child{font-size:12px;color:var(--navy);font-weight:650;min-width:28px}.chapter span:last-child{font-size:10px;color:var(--muted);line-height:1.6}.chapter small{display:block;max-width:145px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.side-search{display:block;padding:15px 12px 0}.side-search input{width:100%;font-size:12px}.search-hit,.note-jump{display:block;text-align:left;border:0;border-bottom:1px solid #eee;border-radius:0;width:100%;padding:15px;font-size:11px;line-height:1.6}.search-hit b,.note-jump b{display:block;color:#5d6f8f;margin-bottom:4px}.note-jump span{white-space:pre-wrap;overflow-wrap:anywhere}#page-viewport{flex:1;min-width:0;overflow:auto;position:relative;padding:26px;overscroll-behavior:contain}#page-stage{position:relative;margin:0 auto;box-shadow:0 4px 26px #18244415;background:white;isolation:isolate;user-select:none;-webkit-user-select:none}#book-page{display:block;width:100%;height:100%;pointer-events:none}#ink-layer{position:absolute;inset:0;width:100%;height:100%;touch-action:none;z-index:1;cursor:crosshair}#ink-layer.pan{pointer-events:none}#notes-layer{position:absolute;inset:0;z-index:2;pointer-events:none}.sticky-note{position:absolute;background:#fff1b4;box-shadow:0 5px 12px #18244418;border:1px solid #e6d68c;width:175px;min-height:107px;border-radius:2px;pointer-events:auto}.note-handle{display:flex;justify-content:space-between;align-items:center;background:#f4dfa0;padding:5px 7px;cursor:move;touch-action:none;font-size:9px;color:#826a35}.note-handle button{padding:0 3px;border:0;background:none;font-size:17px;line-height:1}.sticky-note textarea{border:0;outline:none;background:transparent;resize:vertical;width:100%;min-height:83px;max-height:240px;padding:10px;font-size:12px;line-height:1.5;color:#625637;display:block;user-select:text}.page-navigation{display:flex;align-items:center;justify-content:center;gap:28px;background:#fff;border-top:1px solid var(--border);padding:10px;z-index:4}.page-navigation label{display:flex;align-items:center;gap:8px;font-size:11px;color:var(--muted)}#page-number{width:63px;padding:7px;text-align:center}.page-navigation button{font-size:11px}#page-loading{position:absolute;top:35px;left:50%;transform:translateX(-50%);background:#182444ed;color:white;border-radius:8px;padding:14px 22px;z-index:5;white-space:nowrap}dialog{border:1px solid #e5e6e7;border-radius:18px;width:420px;max-width:calc(100vw - 30px);box-shadow:0 20px 90px #18244430;padding:30px}dialog::backdrop{background:#18244480}dialog h2{font-size:25px;line-height:1.35;margin:15px 0 25px}dialog form{position:relative}dialog label{display:block;margin:15px 0;font-size:12px}dialog input{display:block;width:100%;margin-top:7px}dialog .primary{width:100%;margin:12px 0 20px}dialog a{font-size:11px;display:block;text-align:center;color:var(--muted)}.dialog-close{position:absolute;right:-15px;top:-18px;border:0;font-size:22px}#login-error{color:#b44548;font-size:12px}#toast{position:fixed;left:50%;bottom:75px;transform:translateX(-50%);background:var(--navy);color:#fff;padding:13px 20px;border-radius:9px;box-shadow:var(--shadow);z-index:20;max-width:90vw;font-size:12px;line-height:1.6}.reader-busy #ink-layer{pointer-events:none}.reader-busy #notes-layer{pointer-events:none}.reader-busy #book-page{opacity:.3}@media(min-width:1500px){.toolbar{gap:24px}.width-control input{width:140px}}@media(max-width:1100px){.toolbar{gap:12px;padding:10px 16px}.tool-buttons button span{display:none}.width-control input{width:80px}.book-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.welcome-art{margin-right:0}.welcome h1{font-size:39px}}@media(max-width:760px){.topbar{height:64px;padding:0 18px}.brand{font-size:19px}.brand img{width:34px}.top-actions{gap:10px}#mode-label{display:none}.welcome{padding:35px 22px;gap:0}.welcome h1{font-size:32px}.welcome p{font-size:13px}.welcome-art{width:160px;transform:scale(.6);transform-origin:left center;margin-right:-58px}.library-section{padding:0 20px 30px}.filters{gap:10px}.tabs{width:100%;margin-bottom:2px}.search-label{flex:1}.search-label input{width:100%}.filters select{max-width:155px}.book-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.book-info{padding:14px}.cover-wrap{height:190px}.book-footer{align-items:flex-start;flex-direction:column;margin-top:13px}.open-book{width:100%}.book-meta{font-size:8px}.book-info h3{font-size:16px}footer{margin:0 20px}footer span{float:none;display:block;margin-top:7px}#reader{height:calc(100dvh - 64px)}.reader-heading{padding:10px 12px;gap:10px}.reader-heading h1{font-size:15px}.reader-heading>.quiet{font-size:10px;padding:7px}#save-status{font-size:10px;max-width:90px}.toolbar{gap:9px;padding:7px 10px}.tool-buttons button{padding:6px 8px}.palette{gap:7px}.color-dot{width:21px;height:21px}.width-control{font-size:9px;gap:6px}.width-control input{width:90px}.zoom-control{font-size:9px}.history-buttons button{font-size:18px}.reader-layout{position:relative}#sidebar{position:absolute;top:0;bottom:0;left:0;z-index:6;width:225px;box-shadow:12px 0 30px #18244418}#page-viewport{padding:14px}#page-stage{margin-left:0}.page-navigation{gap:14px;padding:8px 10px}.page-navigation button{padding:8px}.sticky-note{width:145px}.sticky-note textarea{font-size:11px}.sidebar-tabs{top:0}}@media(max-width:420px){.welcome-art{display:none}.welcome h1{font-size:34px}.book-grid{gap:10px}.cover-wrap{height:180px}.book-cover{height:155px;width:113px}.book-cover .jp-title{font-size:20px}.book-info{padding:12px}.book-info p{font-size:10px}.toolbar{gap:8px}.width-control input{width:82px}.zoom-control select{padding:4px}.top-actions .quiet{padding:8px}}@media print{body>*{display:none!important}body:after{content:"MagicWord · impressão indisponível";display:block;font-size:16px}}
@media(max-width:760px){.tool-buttons{flex-basis:100%;justify-content:space-between}.tool-buttons button span{display:inline;font-size:10px}.tool-buttons button{padding:6px 8px}}

#toggle-annotations{white-space:nowrap;font-size:12px}.account-help{line-height:1.65;color:#657184;margin-bottom:20px}#linked-email{overflow-wrap:anywhere}#login-fields>.primary{margin-top:18px}#login-fields>a{display:block;margin-top:16px}

/* Dedicated mark, page-side controls, and a compact phone workspace. */
.brand img{width:52px;height:52px}.brand{gap:13px}.brand small{letter-spacing:1.7px;color:#e6d3aa}
.mobile-only{display:none}.tool-options{display:flex;align-items:center;gap:18px;flex:1;flex-wrap:wrap;min-width:0}
.reader-layout{position:relative}.page-side{position:absolute;top:50%;transform:translateY(-50%);width:48px;height:56px;padding:0;display:grid;place-items:center;font-size:26px;line-height:1;z-index:3;color:#fff;background:var(--navy);border:1px solid #ffffff60;border-radius:16px;box-shadow:0 5px 18px #18244420;touch-action:manipulation}.page-side:hover{background:#2e3c61}.page-side-prev{left:12px}.page-side-next{right:12px}.reader-layout:has(#sidebar:not([hidden])) .page-side-prev{left:250px}.page-side:disabled{opacity:.25;pointer-events:none}.reader-busy .page-side{pointer-events:none;opacity:.3}
#page-viewport{padding:26px 64px}
@media(max-width:760px){
 .topbar{height:68px;padding:0 14px;gap:8px}.brand{font-size:18px;gap:9px}.brand img{width:44px;height:44px}.brand small{font-size:9px}.top-actions .quiet{max-width:145px;min-height:44px;font-size:11px}
 #reader{height:calc(100dvh - 68px)}.reader-heading{gap:8px;flex-wrap:wrap;padding:8px 10px}.reader-heading>.quiet{min-height:44px;padding:8px;font-size:10px}.reader-heading h1{font-size:15px}.reader-heading div{flex:1;min-width:70px}#save-status{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}.mobile-only{display:inline-flex;align-items:center;justify-content:center}
 .toolbar{padding:6px 10px;gap:5px;flex-shrink:0}.tool-buttons{width:100%;flex-basis:100%;justify-content:space-between;gap:2px}.tool-buttons button{min-width:44px;min-height:44px;display:flex;align-items:center;justify-content:center;gap:2px;padding:6px;font-size:17px}.tool-buttons button span{font-size:10px;margin-left:0}
 #toggle-annotations{min-height:38px;font-size:11px;padding:6px 10px}.tool-options{display:none;width:100%;flex-basis:100%;gap:10px;padding:7px 0 4px;border-top:1px solid #edf0f4}.toolbar.expanded .tool-options{display:flex}.palette{gap:9px}.color-dot{width:28px;height:28px}.width-control{font-size:10px;flex:1;gap:8px}.width-control input{width:90px;min-height:32px}.history-buttons button{min-height:40px;min-width:40px}.zoom-control{font-size:10px}.zoom-control select{min-height:40px}
 #page-viewport{padding:12px 48px}#page-stage{margin:0 auto}.page-side{width:40px;height:52px;border-radius:13px;font-size:24px}.page-side-prev,.reader-layout:has(#sidebar:not([hidden])) .page-side-prev{left:4px}.page-side-next{right:4px}.reader-layout:has(#sidebar:not([hidden])) .page-side{visibility:hidden}
 .page-navigation{gap:10px;padding:7px 8px max(7px,env(safe-area-inset-bottom));flex-shrink:0}.page-navigation button{min-height:44px;padding:7px 10px}.page-navigation label{gap:5px;font-size:10px}#page-number{min-height:40px;width:48px}.sidebar-tabs button{min-height:44px}.chapter{min-height:58px}
 .book-grid{gap:12px}.filters input,.filters select,.tab,.open-book{min-height:44px}.welcome h1{font-size:32px}.welcome-art{display:none}
}
@media(max-width:359px){.reader-heading>.quiet{font-size:9px;padding:6px}.reader-heading h1{font-size:13px}.tool-buttons button span{font-size:9px}.page-navigation{gap:5px}.page-navigation button{font-size:10px;padding:6px}.brand{font-size:16px}.top-actions .quiet{max-width:125px}}

/* Official two-line electronic textbook wordmark, approved 2026-10-10. */
.topbar{background:#fff;color:var(--ink);border-bottom:1px solid #e5e6e7}
.brand{flex-shrink:0;display:block;line-height:0}.brand img{display:block;width:220px;height:70px;object-fit:cover;object-position:center}
.top-actions .quiet{color:var(--ink);border-color:#d9ded8;background:#fff}.top-actions .quiet:hover{background:#f4f6f1}
.book-cover .cover-brand{width:100%;display:block;letter-spacing:normal}.cover-brand img{display:block;width:102px;max-width:100%;height:28px;object-fit:cover;object-position:center;background:#fff}.book-cover .cover-mark{bottom:57px}
.art-book i{left:12px;right:12px;bottom:12px}.art-book i img{display:block;width:100%;height:36px;object-fit:cover;object-position:center}
footer{display:flex;justify-content:space-between;align-items:center;gap:18px}footer .footer-brand{width:170px;height:55px;object-fit:cover;object-position:center}footer span{float:none;margin:0}
@media(max-width:760px){.brand img{width:182px;height:58px}footer{flex-wrap:wrap;gap:5px}footer span{margin:0}}
@media(max-width:359px){.brand img{width:148px;height:48px}}

/* Personal-use protection: cover, without clearing canvases or notes. */
#protection-owner{display:block;font-size:.75rem;color:#516f65;margin-top:3px;overflow-wrap:anywhere}
#reader.capture-shielded> :not(.capture-shield){visibility:hidden;pointer-events:none}
.capture-shield{position:fixed;inset:0;z-index:2147483600;display:flex;align-items:center;justify-content:center;padding:24px;background:#f7faf8;color:#214739;opacity:1;isolation:isolate}
.capture-shield>div{max-width:480px;text-align:center;background:#fff;border:1px solid #dce8e1;border-radius:16px;padding:28px;box-shadow:0 8px 36px #21473912}
.capture-shield h2{font-size:1.35rem;margin:0 0 12px;line-height:1.4}
.capture-shield p{font-size:.95rem;line-height:1.6;margin:0 0 20px}
.capture-shield button{min-height:44px}
@media print{.capture-shield{display:none!important}}

.purchase-options{padding:18px 20px;background:#fff;border:1px solid #e3e7ed;border-radius:16px;margin-bottom:24px}.purchase-options p{line-height:1.7}.set-choice{display:flex;align-items:center;gap:8px;margin:12px 0;font-size:13px}.muted{color:#697586;font-size:13px}#download-progress{min-height:24px}#redownload{font-size:12px}@media(max-width:760px){#redownload{max-width:100px}.purchase-options button{display:block;width:100%;margin-top:10px}}

/* 2026-10-22 未購入は灰色・購入ページ */
.book-card.locked{filter:grayscale(1);opacity:.55;cursor:default}
.book-card.locked:hover{transform:none}
.locked-note{font-size:11px;color:var(--muted);margin:0;text-align:right}
.purchase-dialog{width:560px}
#purchase-list{max-height:52vh;overflow:auto;margin:10px 0}
.purchase-row{display:grid;grid-template-columns:1fr auto;gap:6px 10px;align-items:center;padding:10px 0;border-bottom:1px solid #eee}
.purchase-row .set-choice{margin:0}
.purchase-row .set-choice input{display:inline-block;width:auto;margin:0}
.purchase-price{font-size:13px;text-align:right}
.purchase-row .open-book{grid-column:1/-1;min-height:40px}
.purchase-dialog .primary{margin:8px 0}