.skip-link{position:fixed;top:-100px;left:15px;z-index:1000;background:var(--surface,#fff);padding:14px}.skip-link:focus{top:10px}.nav-icon{width:24px;display:inline-block;text-align:center;font-size:21px}.nav-label{font-size:12px;letter-spacing:.1em;color:var(--muted,#66786e);padding:18px 12px 10px}.sidebar-callout{display:flex;flex-direction:column;gap:10px;padding:17px;border:1px solid var(--border,#dce5de);border-radius:13px;margin-bottom:14px}.sidebar-callout strong{font-size:13px}.sidebar-callout span:last-child{font-size:13px}.admin-link{display:block;padding:12px;font-size:13px;color:var(--muted,#63756a)}.preview-label,.language-label{font-size:12px;letter-spacing:.04em}.preview-label{padding:6px 9px;background:#eaf3ed;color:#176b52;border-radius:6px}.progress-link{font-size:25px}.reader-page-label{display:flex;align-items:center;gap:8px}.reader-page-label input{width:80px}.reader-zoom-label{display:flex;gap:8px;align-items:center}.reader-header{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}.reader-header h1{font-size:clamp(22px,3vw,32px)}.reader-stage{overflow:auto;display:flex;align-items:flex-start;min-height:400px;padding:16px;background:#d5dbd6;border-radius:12px}.reader-canvas{margin:auto;display:block;max-width:none;box-shadow:0 8px 30px #0002}.reader-shell:fullscreen{background:var(--background,#f6f7f5);padding:20px;overflow:auto}.reader-shell:fullscreen .reader-stage{height:calc(100vh - 230px)}.reader-bookmarks{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.reader-toolbar{font-size:12px}.metadata-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 25px}.metadata-grid div{padding:13px 0;border-bottom:1px solid var(--border,#dce5de)}.metadata-grid dt{font-size:12px;color:var(--muted,#66776e);margin-bottom:5px}.metadata-grid dd{margin:0;font-size:12px}.book-card .book-cover img{width:100%;height:100%;object-fit:contain;transition:transform .25s}.book-card:hover .book-cover img{transform:translateY(-5px) rotate(-2deg)}.book-detail-cover img{width:100%;max-height:460px;object-fit:contain}.book-card .book-title{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.book-ge{font-size:13px;line-height:1.7;color:var(--muted,#66776e)}.tag-row{display:flex;gap:7px;flex-wrap:wrap;margin:10px 0}.book-card{position:relative}.favorite-button{position:absolute;top:14px;right:14px;z-index:1;border:0;background:var(--surface,#fff);border-radius:50%;width:44px;height:44px;color:var(--text,#15241f);cursor:pointer}.feature-card a{margin-top:auto}.step-number{font-size:36px;color:var(--brand,#176b52);font-weight:700}.route-steps{display:flex;flex-direction:column;gap:12px}.route-step{display:flex;gap:16px;align-items:center;border-bottom:1px solid var(--border,#dde4df);padding:16px 0}.route-step span{font-size:12px}.video-box{aspect-ratio:16/9;width:100%;border:0;border-radius:18px}.video-thumbnail{width:100%;aspect-ratio:16/9;object-fit:cover}.field,select,textarea{max-width:100%}.form-group{display:flex;flex-direction:column;gap:7px}.form-group.full{grid-column:1/-1}.form-group label{font-size:12px}.admin-form textarea{min-height:95px;resize:vertical}.admin-actions{display:flex;gap:10px;flex-wrap:wrap;margin:20px 0}.admin-list{max-height:850px;overflow:auto}.admin-record{padding:14px;border-bottom:1px solid var(--border,#dce5de);cursor:pointer;width:100%;text-align:left;background:transparent;color:inherit;border-top:0;border-left:0;border-right:0;font:inherit}.admin-record strong{display:block;font-size:12px;line-height:1.5}.admin-record small{font-size:12px}.error{border-color:#b44235!important;color:#a1352b!important}.status-draft{color:#7b611e}.status-published{color:#176b52}.small{font-size:12px;line-height:1.8}.page-heading h1{font-size:clamp(26px,3vw,38px);letter-spacing:-.04em;margin:10px 0}.section-spacer{margin-top:32px}.book-detail-content h1{font-size:clamp(24px,3vw,38px);line-height:1.35}.book-detail-content p{line-height:1.9}.library-error{margin-bottom:24px}.offline-note{margin:16px 0}.software-logo{height:70px;max-width:150px;object-fit:contain}.software-screenshot{width:100%;max-height:200px;object-fit:contain}.empty a{margin-top:16px}.home-books{grid-template-columns:repeat(4,minmax(0,1fr))!important}.hero-board .hero-piece{font-size:clamp(20px,2.5vw,36px);line-height:1;filter:drop-shadow(1px 3px 1px #0003)}.hero-board .hero-square{display:grid;place-items:center}.feature-card h3{font-size:18px;line-height:1.5}.mini-label{font-size:12px;letter-spacing:.06em;text-transform:uppercase}.link-row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}.book-actions{display:flex;gap:10px;flex-wrap:wrap;margin:22px 0}.filter-grid{margin:18px 0}.filter-grid .form-group{min-width:0}.sidebar-backdrop[hidden]{display:none!important}.chip.active{background:#176b52;color:#fff}.toolbar .search-input{min-width:0}.no-wrap{white-space:nowrap}.home-note{font-size:13px;line-height:1.8;color:var(--muted,#65766c)}
@media(max-width:1250px){.home-books{grid-template-columns:repeat(3,minmax(0,1fr))!important}.home-books .book-card:last-child{display:none}}
@media(max-width:650px){.home-books{grid-template-columns:repeat(2,minmax(0,1fr))!important}.home-books .book-card:last-child{display:block}.preview-label{display:none}.reader-toolbar{gap:6px}.reader-toolbar .btn{padding:9px}.reader-zoom-label{font-size:12px}.reader-zoom-label select{max-width:145px}.reader-stage{padding:8px}.metadata-grid{grid-template-columns:1fr}.home-books .book-cover{height:195px}.home-books .book-body{padding:12px}.home-books .book-title{font-size:13px}.home-books .book-author{font-size:13px}.reader-header .btn{width:100%}.page-footer{line-height:1.8}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
.reader-header{align-items:flex-start}.reader-header h1{margin:4px 0 8px}.reader-header>.btn{flex-shrink:0}.admin-login{max-width:540px}

/* Keep the decorative board square even when the symbol font has tall metrics. */
.hero-board .hero-square{min-height:0;aspect-ratio:auto}
@media(max-width:640px){.hero-board{width:220px;margin-top:0}.hero-board .hero-piece{font-size:25px}}

.home-community{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:26px;align-items:start;margin-top:32px}.home-community .legend-home{margin-top:0;min-width:0}.ratings-card{background:var(--surface,#fff);border:1px solid var(--border,#e1e5dd);border-radius:18px;padding:22px 18px;color:var(--text,#243a31)}.ratings-card h2{font-size:19px;margin:9px 0}.ratings-note{font-size:13px;line-height:1.8;color:var(--muted,#788176);margin:8px 0}.ratings-period{font-size:12px;font-weight:600;color:#97784d;margin:12px 0}.ratings-list{list-style:none;padding:0;margin:0 0 16px}.ratings-list li{display:grid;grid-template-columns:20px minmax(0,1fr) 36px;gap:7px;align-items:center;padding:10px 0;border-bottom:1px solid #8b9c891c;font-size:13px}.ratings-list a{color:inherit;text-decoration:none;overflow-wrap:anywhere}.ratings-list a:hover{text-decoration:underline}.ratings-rank{color:var(--muted,#788176);font-variant-numeric:tabular-nums}.ratings-list strong{text-align:right;font-variant-numeric:tabular-nums}.ratings-list li:nth-child(-n+3) .ratings-rank{color:#85652f;font-weight:700}html[data-theme='dark'] .ratings-list li:nth-child(-n+3) .ratings-rank{color:#c0995a}@media(max-width:1100px){.home-community{grid-template-columns:1fr}.ratings-card{max-width:540px;width:100%;justify-self:end}}@media(max-width:600px){.ratings-card{justify-self:stretch;max-width:none}}

.video-cover{aspect-ratio:16/9;display:flex;align-items:center;justify-content:center;gap:26px;background:linear-gradient(140deg,#224c3b,#172e25);position:relative;color:#eddec0;text-decoration:none;border-radius:14px 14px 0 0}.video-cover>span{font:90px Georgia,serif}.video-cover>b{display:grid;place-items:center;border-radius:50%;width:48px;height:48px;background:#ffffff22;font-size:19px}.video-cover>small{position:absolute;bottom:16px;left:20px;font-size:13px}.video-cover:hover>b{background:#ffffff40}video.video-box{display:block;width:100%;height:auto;aspect-ratio:16/9;background:#14221c;border-radius:14px}

.home-intro{display:grid;grid-template-columns:minmax(0,1fr);gap:18px;align-items:start}.home-intro .hero{min-width:0}.home-intro>.quote-card{width:100%;max-width:none;justify-self:stretch;padding:16px 22px}.home-intro>.quote-card .quote-mark{font-size:42px;height:30px}.home-intro>.quote-card blockquote{margin:6px 0 12px;line-height:1.75}.home-intro>.quote-card .quote-schedule{margin-top:9px}.quote-card{padding:25px 22px;border:1px solid var(--border,#dedfd6);border-radius:20px;background:var(--surface,#fff);color:var(--text,#223a30);position:relative}.quote-mark{display:block;color:#b49a69;font-family:Georgia,serif;font-size:64px;height:55px;line-height:1.3}.quote-card blockquote{font-size:15px;line-height:1.95;margin:10px 0 24px;overflow-wrap:anywhere}.quote-author{display:flex;align-items:center;gap:12px}.quote-author strong{font-size:13px;line-height:1.7}.quote-author img,.quote-avatar{width:54px;height:54px;border-radius:50%;object-fit:cover;object-position:top;display:grid;place-items:center;flex-shrink:0}.quote-avatar{background:#b49a6922;font-size:29px;color:#9b8054}.quote-schedule{display:block;font-size:12px;color:var(--muted,#788176);margin-top:18px}.quote-credits{font-size:12px;line-height:1.8;color:var(--muted,#788176);margin-top:10px}.quote-credits summary{cursor:pointer}.quote-credits p{margin:8px 0}@media(max-width:1000px){.home-intro{grid-template-columns:1fr}.quote-card{width:100%;max-width:none}.quote-card blockquote{margin-bottom:16px}}

/* Compact home quotation card. */
.quote-card{padding:18px 19px;border-radius:18px}.quote-mark{font-size:48px;height:37px}.quote-card blockquote{font-size:14px;line-height:1.75;margin:8px 0 16px}.quote-author img,.quote-avatar{width:44px;height:44px}.quote-avatar{font-size:25px}.quote-author{gap:10px}.quote-schedule{margin-top:12px}.quote-credits{margin-top:6px}

@media(max-width:700px){.home-intro>.quote-card{max-width:none}}

/* Selectable PDF text shares the rendered page viewport; it never replaces the canvas. */
.reader-page-surface{position:relative;margin:auto;flex-shrink:0;isolation:isolate}.reader-page-surface .reader-canvas{margin:0}.reader-text-layer{position:absolute;inset:0;overflow:clip;line-height:1;letter-spacing:normal;word-spacing:normal;text-align:initial;text-size-adjust:none;forced-color-adjust:none;transform-origin:0 0;z-index:1;--min-font-size:1;--text-scale-factor:calc(var(--total-scale-factor)*var(--min-font-size));--min-font-size-inv:calc(1/var(--min-font-size))}.reader-text-layer :is(span,br){color:transparent;position:absolute;white-space:pre;cursor:text;transform-origin:0 0;user-select:text}.reader-text-layer>:not(.markedContent),.reader-text-layer .markedContent span:not(.markedContent){z-index:1;--font-height:0;font-size:calc(var(--text-scale-factor)*var(--font-height));--scale-x:1;--rotate:0deg;transform:rotate(var(--rotate)) scaleX(var(--scale-x)) scale(var(--min-font-size-inv))}.reader-text-layer .markedContent{display:contents}.reader-text-layer ::selection{background:#3f927755;color:transparent}.book-translation-popup{width:min(640px,calc(100vw - 28px));max-height:85vh;overflow:auto;border:1px solid var(--border,#dce3dc);border-radius:16px;padding:24px;background:var(--surface,#fff);color:var(--text,#243a31);box-shadow:0 20px 90px #0004}.book-translation-popup::backdrop{background:#102b2080}.book-translation-head{display:flex;align-items:center;justify-content:space-between;gap:16px}.book-translation-head h2{margin:0;font-size:21px}.book-translation-result,.book-translation-original{white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.9;user-select:text}.book-translation-result{font-size:16px;margin:20px 0}.book-translation-original{font-size:13px}.book-translation-actions{display:flex;gap:10px;margin-top:20px}.book-translation-popup details{border-top:1px solid var(--border,#ddd);padding-top:15px}.book-translation-popup [data-status]{font-size:12px;color:var(--muted,#66786e)}

/* The remaining FIDE top-20 places stay available without stretching the home page. */
.ratings-card .ratings-period{font-size:13px;color:var(--text,#243a31)}
.ratings-more{margin:-8px 0 12px;border-top:1px solid var(--border,#e1e5dd)}
.ratings-more summary{display:flex;align-items:center;justify-content:space-between;min-height:44px;cursor:pointer;list-style:none;color:var(--green,#176b52);font-size:14px;font-weight:700}
.ratings-more summary::-webkit-details-marker{display:none}
.ratings-more summary span{font-size:20px;line-height:1;transition:transform .15s}
.ratings-more[open] summary span{transform:rotate(180deg)}
.ratings-more summary:focus-visible{outline:2px solid var(--green,#176b52);outline-offset:2px;border-radius:4px}
.ratings-more .ratings-list{margin:0 0 8px}
.ratings-more .ratings-list li:nth-child(-n+3) .ratings-rank{color:var(--muted,#788176);font-weight:400}

[data-home-introduction] .stats-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0}
[data-home-introduction] .stats-row>div{min-width:0;padding:0 16px;border-right:1px solid var(--line)}
[data-home-introduction] .stats-row>div:first-child{padding-left:0}
[data-home-introduction] .stats-row>div:last-child{padding-right:0;border-right:0}
[data-home-introduction] .stats-row strong{font-size:23px}
[data-home-introduction] .stats-row span{display:block;font-size:13px;line-height:1.5;overflow-wrap:anywhere}
@media(max-width:420px){
  [data-home-introduction] .stats-row>div{padding:0 8px}
  [data-home-introduction] .stats-row strong{font-size:20px}
  [data-home-introduction] .stats-row span{font-size:12px}
}