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#00000029}.friedemann-wordmark{flex:none;align-items:center;gap:.65rem;width:12rem;text-decoration:none;display:flex}.friedemann-wordmark .portal-approved-logo{flex:none;width:3.25rem;height:auto;display:block}.friedemann-wordmark .portal-logo-label{color:#f7faf7;font:600 1.45rem/1 var(--friedemann-font-ui);letter-spacing:-.035em;align-self:center}.friedemann-wordmark .portal-approved-logo-light{display:none}.friedemann-wordmark .portal-approved-logo-dark{display:block}.friedemann-header-book{border-left:1px solid 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:is(p,li){overflow-wrap:anywhere;font-size:1rem;line-height:1.75}.portal-legal-page .legal-copy a{color:var(--portal-action);-webkit-text-decoration-color:var(--portal-action);text-decoration-color:var(--portal-action);text-underline-offset:.2em}.portal-legal-page .legal-copy a:hover{color:var(--portal-action-hover)}.portal-legal-page .app-status-action{border:1px solid var(--portal-action);background:var(--portal-action);min-height:2.9rem;color:var(--portal-surface);font:700 .84rem/1 var(--portal-sans);border-radius:.4rem;align-self:flex-start;margin-top:2.5rem;padding:.75rem 1.25rem}.portal-legal-page .app-status-action:hover{background:var(--portal-action-hover);border-color:var(--portal-action-hover);color:var(--portal-surface)}.portal-faq-page{padding-block:clamp(2.75rem,7vw,5.5rem)}.portal-faq-card.empty-content{border:1px solid var(--portal-border);background:var(--portal-surface);text-align:left;border-radius:1rem;gap:0;width:100%;max-width:58rem;margin:0 auto;padding:clamp(1.5rem,4vw,3.75rem);box-shadow:0 1.25rem 3rem #26302814}.portal-faq-header,.portal-faq-list{width:100%;max-width:58rem;margin-inline:auto}.portal-faq-header{margin-bottom:clamp(2.5rem,5vw,4rem)}.portal-faq-header .portal-kicker{color:var(--portal-action)}.portal-faq-header h1{max-width:42rem;color:var(--portal-ink);font:500 clamp(2.75rem, 7vw, 5rem)/.98 var(--portal-serif);-webkit-hyphens:auto;hyphens:auto;letter-spacing:-.045em;overflow-wrap:anywhere;margin:1rem 0 1.25rem}.portal-faq-header>p:last-child{max-width:40rem;color:var(--portal-ink-soft);margin:0;font-size:clamp(1rem,1.5vw,1.15rem);line-height:1.7}.portal-faq-list{border-top:1px solid var(--portal-border)}.portal-faq-item{border-bottom:1px solid var(--portal-border)}.portal-faq-question{min-height:4.75rem;color:var(--portal-ink);cursor:pointer;font:600 clamp(1.05rem, 1.7vw, 1.3rem)/1.35 var(--portal-serif);justify-content:space-between;align-items:center;gap:1.5rem;padding:1rem .75rem;list-style:none;display:flex}.portal-faq-question::-webkit-details-marker{display:none}.portal-faq-question:after{color:var(--portal-action);content:"+";font:400 1.5rem/1 var(--portal-sans);flex:none}.portal-faq-item[open] .portal-faq-question:after{content:"−"}.portal-faq-question:hover{background:var(--portal-surface-soft)}.portal-faq-question:focus-visible{outline:2px solid var(--portal-focus);outline-offset:-2px}.portal-faq-answer{max-width:48rem;color:var(--portal-ink-soft);padding:0 3.5rem 1.5rem .75rem}.portal-faq-answer p{margin:0 0 .9rem;font-size:1rem;line-height:1.75}.portal-faq-answer p:last-child{margin-bottom:0}.portal-footer{border-top:1px solid var(--portal-border);background:#eee8dc94}.portal-settings-shell .portal-footer{background:var(--portal-surface)}.portal-footer-inner{min-height:7.5rem;color:var(--portal-ink-soft);grid-template-columns:1fr auto 1fr;align-items:center;gap:2rem;font-size:.74rem;display:grid}.portal-footer-inner p{margin:0}.portal-footer-inner p:first-child{gap:.25rem;display:grid}.portal-footer-inner strong{color:var(--portal-ink);font:600 1.05rem/1.2 var(--portal-serif)}.portal-footer-inner nav{align-items:center;gap:1.35rem;display:flex}.portal-footer-inner a{min-height:2.75rem;color:var(--portal-ink-soft);text-underline-offset:.2rem;align-items:center;display:inline-flex}.portal-footer-inner a[aria-current=page]{color:var(--portal-ink);text-decoration:underline;-webkit-text-decoration-color:var(--portal-gold);text-decoration-color:var(--portal-gold)}.portal-footer-separator{color:var(--portal-gold);font-family:var(--portal-serif);font-size:1rem}.portal-version{justify-self:end}@media (width<=64rem){.portal-book-feature{gap:3rem}.portal-book-page-header{grid-template-columns:1fr;gap:2rem}.portal-book-page-header>p{max-width:42rem}}@media (width<=48rem){.portal-frame{width:min(100% - 2rem,80rem)}.portal-intro{text-align:left}.portal-intro h1,.portal-intro-copy{margin-inline:0}.portal-book-feature{grid-template-columns:1fr}.portal-cover{width:min(78vw,18rem)}.portal-book-copy h2{max-width:none}.portal-footer-inner{grid-template-columns:1fr auto;gap:1rem;padding-block:1.5rem}.portal-footer-inner nav{flex-wrap:wrap;grid-area:2/1/auto/-1}}@media (width<=36rem){.portal-masthead-inner{min-height:4.75rem}.portal-wordmark-mark{width:2.4rem;height:2.4rem;font-size:1.3rem}.portal-wordmark strong{font-size:1.35rem}.portal-wordmark small{display:none}.portal-masthead-actions{gap:.65rem}.bookarium-portal .portal-account-trigger{padding-inline:.85rem}.portal-language-control{background-position:right .55rem center;min-height:2.55rem;padding:.55rem 1.75rem .55rem .45rem;font-size:.7rem}.portal-header-settings-link{border:none;min-height:2.55rem;padding:.55rem}.portal-header-settings-link svg{width:1.25rem;height:1.25rem}.portal-header-settings-link span{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}.portal-intro{padding-block:4.5rem}.portal-intro h1{font-size:clamp(2.7rem,13vw,4rem)}.portal-legal-page .legal-card>h2,.portal-legal-page .legal-copy>h1{font-size:clamp(2rem,10vw,2.5rem)}.portal-section-heading{align-items:start}.portal-section-heading>p{white-space:nowrap}.portal-book-feature{border-radius:.75rem;gap:2.5rem;padding:1.25rem}.portal-book-feature:not(.is-recommended){grid-template-columns:1fr;gap:1.75rem;padding:1.25rem}.portal-book-rail{grid-auto-columns:minmax(10.5rem,68vw);gap:1rem}.portal-cover{width:min(72vw,16rem)}.portal-book-copy{padding:.25rem}.portal-book-copy h2{font-size:clamp(2.65rem,14vw,4rem)}.portal-book-metadata{gap:1rem;display:grid}.portal-book-actions,.portal-primary-action,.portal-secondary-action,.portal-locked-label{width:100%}.portal-status{min-height:calc(100vh - 9rem);padding-block:2rem}.portal-status-copy{padding:2rem 1.25rem}.portal-book-page-header h1{font-size:clamp(2.85rem,15vw,4.5rem)}.portal-chapter-link{grid-template-columns:1fr auto;gap:.5rem 1rem;padding-block:1.2rem}.portal-chapter-number{grid-column:1/-1}.portal-footer-inner{grid-template-columns:1fr}.portal-footer-inner nav{grid-area:auto/1;gap:.65rem 1rem}.portal-version{justify-self:start}}@media (prefers-reduced-motion:reduce){.bookarium-portal *,.bookarium-portal :before,.bookarium-portal :after{scroll-behavior:auto!important;transition-duration:.01ms!important}}.portal-library.portal-page-shell{--portal-canvas:#fff;--portal-surface:#fff;--portal-surface-soft:#f7f8fa;--portal-action-soft:#f5f7f8;--portal-section-surface:#fff;--portal-input-surface:#fff;--portal-account-surface:#fff;--portal-account-surface-hover:#f7f8fa;--portal-border:#e3e7ea;background:var(--portal-canvas)}.portal-library.portal-settings-shell{--portal-feature-surface:#fff}:root[data-theme=dark] .bookarium-portal{--portal-canvas:#0f172a;--portal-surface:#172235;--portal-surface-soft:#202d40;--portal-ink:#e6eef8;--portal-ink-soft:#a8b5c7;--portal-olive:#9cc8ab;--portal-olive-dark:#b8d8c2;--portal-gold:#f0c86a;--portal-border:#34445a;--portal-focus:#93c5fd;--portal-feature-surface:#1e2b3e;--portal-action-soft:#263a52;--portal-section-surface:#1b293d;--portal-input-surface:#111b2c;--portal-account-surface:#1c2d3b;--portal-account-surface-hover:#24394a;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;background:radial-gradient(circle at 18% 0%, #94a3b814, transparent 28rem), var(--portal-canvas);color:var(--portal-ink)}:root[data-theme=dark]:has(.bookarium-portal){scrollbar-color:#64748b #0f172a;background-color:#0f172a}:root[data-theme=dark] body:has(.bookarium-portal){background-color:#0f172a}:root[data-theme=dark]:has(.bookarium-portal)::-webkit-scrollbar-track{background:#0f172a}:root[data-theme=dark]:has(.bookarium-portal)::-webkit-scrollbar-thumb{background:#64748b;border-color:#0f172a}:root[data-theme=dark]:has(.bookarium-portal)::-webkit-scrollbar-thumb:hover{background:#94a3b8}:root[data-theme=dark] .bookarium-portal .portal-chapter-link:hover{background:color-mix(in srgb, var(--portal-surface-soft) 78%, var(--portal-surface))}:root[data-theme=dark] .bookarium-portal .portal-footer{background:var(--portal-surface)}:root[data-theme=dark] .bookarium-portal .portal-footer-inner a,:root[data-theme=dark] .bookarium-portal .portal-back-link,:root[data-theme=dark] .bookarium-portal .portal-back-link:hover{color:#fff}.portal-library .portal-frame{width:min(100% - 5rem,97.5rem)}.portal-masthead-approved{border-bottom:1px solid var(--portal-emphasis-border);background:var(--portal-surface)}.portal-masthead-approved .portal-masthead-inner{min-height:5.25rem}.portal-masthead-approved .portal-wordmark{flex:0 17rem;min-width:0}.portal-masthead-approved .portal-approved-logo-dark,:root[data-theme=dark] .portal-masthead-approved .portal-approved-logo-light{display:none}:root[data-theme=dark] .portal-masthead-approved .portal-approved-logo-dark{display:block}.portal-approved-logo{flex:none;width:3.75rem;height:auto;display:block}.portal-masthead-approved .portal-logo-label{color:var(--portal-ink);font:600 1.65rem/1 var(--portal-serif);letter-spacing:-.035em;align-self:center}.portal-masthead-approved .portal-masthead-actions{gap:1.8rem}.portal-masthead-approved .portal-header-settings-link{border-color:var(--portal-border);min-height:2.9rem;color:var(--portal-ink);font-size:.78rem}.portal-masthead-approved .portal-header-settings-link:hover,.portal-masthead-approved .portal-header-settings-link:focus-visible{border-color:var(--portal-action);color:var(--portal-ink)}.portal-library .portal-account-trigger{border-color:var(--portal-action);background:var(--portal-action);color:#fff;min-height:2.9rem;padding:.75rem 1.55rem;box-shadow:0 .35rem 1.1rem #254c3521}.portal-library .portal-account-trigger:hover,.portal-library .portal-account-trigger:focus-visible{border-color:var(--portal-action-hover);background:var(--portal-action-hover);color:#fff}.portal-visually-hidden{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}.portal-library .portal-hero{grid-template-columns:minmax(0,43fr) minmax(0,57fr);align-items:start;gap:clamp(2.75rem,4vw,4.5rem);padding-block:clamp(4rem,5vw,5.25rem) clamp(6rem,7.5vw,7.5rem);display:grid}.portal-library .portal-intro{text-align:left;min-width:0;padding:clamp(1.5rem,3vw,2.75rem) 0 0}.portal-library .portal-intro .portal-kicker{color:var(--portal-action);letter-spacing:.13em;background:0 0;border-radius:0;margin-bottom:1.65rem;padding:0;font-size:.68rem;display:block}.portal-library .portal-intro h1{letter-spacing:-.052em;max-width:none;margin:0;font-size:clamp(4rem,5.2vw,5.2rem);line-height:.94}.portal-library .portal-intro h1 span{white-space:nowrap;display:block}.portal-library .portal-intro-copy{text-wrap:pretty;max-width:35rem;margin:1.75rem 0 0;font-size:clamp(1rem,1.25vw,1.12rem);line-height:1.75}.portal-library .portal-book-feature{background:var(--portal-feature-surface);border:0;border-radius:1.15rem;grid-template-columns:minmax(0,1fr) minmax(11.5rem,15.5rem);gap:clamp(1.75rem,3vw,3rem);min-width:0;padding:clamp(2rem,2.6vw,2.75rem);box-shadow:0 .75rem 1.75rem #20384c0e}.portal-library .portal-book-copy{min-width:0}.portal-library .portal-book-copy .portal-kicker{color:var(--portal-action);margin-bottom:1.65rem}.portal-library .portal-book-copy h2{letter-spacing:-.045em;max-width:13ch;font-size:clamp(2.35rem,3vw,3.5rem);line-height:.98}.portal-library .portal-book-author{color:var(--portal-action);font:700 .77rem/1.4 var(--portal-sans);letter-spacing:.12em;text-transform:uppercase;margin-top:1rem}.portal-library .portal-book-description{margin-top:1.45rem;font-size:.92rem;line-height:1.75}.portal-library .portal-book-content-warning{margin-top:.9rem;font-size:.78rem;line-height:1.55}.portal-library .portal-book-metadata{border:0;gap:.8rem 1.5rem;margin-top:1.7rem;padding:0}.portal-library .portal-book-metadata div{display:block}.portal-library .portal-book-metadata dd{color:var(--portal-ink-soft);font:500 .76rem/1.35 var(--portal-sans);align-items:center;gap:.45rem;display:inline-flex}.portal-library .portal-book-metadata dd svg{width:1rem;height:1rem}.portal-library .portal-book-actions{margin-top:2rem}.portal-library .portal-primary-action,.portal-library .portal-secondary-action{border-radius:999px;gap:.7rem;min-height:3rem;padding:.78rem 1.5rem;font-weight:700}.portal-library .portal-book-feature .portal-primary-action{border-color:var(--portal-action);background:var(--portal-action)}.portal-library .portal-book-feature .portal-primary-action:hover{border-color:var(--portal-action-hover);background:var(--portal-action-hover);transform:none}.portal-library .portal-secondary-action{color:var(--portal-action);border-color:#0000;padding-inline:.85rem}.portal-library .portal-secondary-action svg{width:1rem}.portal-library .portal-cover{color:#f8fbfd;border:0;border-radius:.3rem .65rem .65rem .3rem;width:min(100%,15.5rem);padding:1.85rem 1.5rem;transition:box-shadow .18s ease-out,transform .18s ease-out;box-shadow:0 18px 30px #1827371a,0 4px 10px #1827370f}.portal-library .portal-cover-image{object-fit:cover;background:0 0;border:0;width:100%;height:100%;padding:0;display:block}.portal-library .portal-cover-image-frame{aspect-ratio:2/3;background-color:var(--portal-cover-placeholder,#dfe7ec);padding:0;overflow:hidden}.portal-library .portal-cover-image-frame .portal-cover-image{opacity:0;transition:opacity .18s ease-out}.portal-library .portal-cover-image-frame.is-loaded .portal-cover-image{opacity:1}.portal-library .portal-cover:before,.portal-library .portal-cover:after{display:none}.portal-library .portal-cover::marker{display:none}.portal-library .portal-cover-blue{background:linear-gradient(90deg,#1a344b33,#0000 9% 93%,#ffffff1f),#7899b6}.portal-library .portal-cover-sage{color:#1c2b34;background:linear-gradient(90deg,#323e2f21,#0000 9% 93%,#ffffff40),#d7dacd}.portal-library .portal-cover-green{background:linear-gradient(90deg,#102b1d2e,#0000 9% 93%,#ffffff14),#3f674e}.portal-library .portal-cover-author,.portal-library .portal-cover-series{color:inherit;letter-spacing:.2em;opacity:.88;text-align:center;align-self:center;font-style:normal;font-weight:700}.portal-library .portal-cover-ornament{color:#e7bd61;font-size:.58rem;top:4.3rem}.portal-library .portal-cover-title{font-size:clamp(1.65rem,2.25vw,2.45rem);line-height:1.03}.portal-library .portal-cover-sage .portal-cover-title{font-size:clamp(1.55rem,2vw,2rem)}.portal-library .portal-cover-title>span{white-space:nowrap;display:block}.portal-library .portal-book-tile-cover-link:hover .portal-cover,.portal-library .portal-book-tile-cover-link:focus-visible .portal-cover{transform:none;box-shadow:0 20px 32px #1827371f,0 5px 12px #18273712}.portal-library .portal-catalog{padding-bottom:clamp(4.5rem,8vw,7rem)}.portal-library .portal-section-heading{margin-bottom:1.8rem}.portal-library .portal-section-heading h2{font-size:clamp(2.3rem,3.4vw,3.2rem)}.portal-library .portal-book-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(4rem,7vw,7rem);display:grid}.portal-library .portal-book-tile{grid-template-columns:minmax(10rem,13rem) minmax(0,1fr);align-items:center;gap:clamp(2rem,3vw,3rem);display:grid}.portal-library .portal-book-tile .portal-cover{width:100%;padding:1.55rem 1.2rem}.portal-library .portal-book-tile .portal-cover-image-frame{padding:0}.portal-library .portal-book-tile-cover-link{width:100%}.portal-library .portal-book-tile .portal-cover-image{object-fit:cover;width:100%;max-width:none;padding:0}.portal-library .portal-book-tile .portal-cover-title{font-size:clamp(1.45rem,2vw,2rem)}.portal-library .portal-book-tile .portal-cover-sage .portal-cover-title{font-size:clamp(1.25rem,1.55vw,1.65rem)}.portal-library .portal-book-tile .portal-cover-author,.portal-library .portal-book-tile .portal-cover-series{font-size:.47rem}.portal-library .portal-book-tile .portal-cover-ornament{top:3.75rem}.portal-library .portal-book-tile-copy{padding:0}.portal-library .portal-book-tile-copy h3{font-size:clamp(1.75rem,2.1vw,2.125rem);line-height:1.08}.portal-library .portal-book-tile-author{color:var(--portal-action);font:600 clamp(1rem, 1.2vw, 1.125rem)/1.4 var(--portal-sans)}.portal-library .portal-book-tile-description{color:var(--portal-ink-soft);margin:1rem 0 0;font-size:clamp(.82rem,.95vw,.95rem);line-height:1.55}.portal-library .portal-book-tile-meta{margin-top:.8rem;font-size:clamp(.85rem,1vw,1rem)}.portal-library .portal-book-tile-metadata{flex-wrap:nowrap;align-items:center;gap:1rem;margin-top:1.1rem;display:flex}.portal-library .portal-book-tile-metadata div{min-width:0;display:grid}.portal-library .portal-book-tile-metadata dd{white-space:nowrap;font-size:clamp(.85rem,1vw,1rem)}.portal-library .portal-book-tile-action{color:var(--portal-action);gap:.55rem;margin-top:2rem;font-size:clamp(.85rem,1vw,1rem);transition:color .18s ease-out}.portal-library .portal-book-tile-action:hover{color:var(--portal-action-hover)}.portal-library .portal-footer-minimal{background:0 0}.portal-library .portal-footer-minimal .portal-footer-inner{grid-template-columns:1fr auto 1fr;min-height:0;padding-block:1rem}.portal-library .portal-footer-minimal nav{grid-column:2;justify-self:center}.portal-library .portal-footer-minimal .portal-version{grid-column:3;justify-self:end}.portal-library-loading .portal-skeleton{background:linear-gradient(100deg, var(--portal-surface-soft) 22%, var(--portal-surface) 45%, var(--portal-surface-soft) 70%);background-size:220% 100%;border-radius:.35rem;animation:1.6s ease-in-out infinite portal-skeleton-shimmer;display:block}.portal-library-loading .portal-loading-intro{align-content:start;min-width:0;padding-block:clamp(4rem,5vw,5.25rem);display:grid}.portal-library-loading .portal-skeleton-kicker{border-radius:999px;width:12rem;height:1.55rem}.portal-library-loading .portal-skeleton-intro-title{border-radius:.65rem;width:min(100%,34rem);height:clamp(2.75rem,5vw,5.25rem);margin-top:2.25rem}.portal-library-loading .portal-skeleton-intro-title-short{width:min(88%,29rem);margin-top:.65rem}.portal-library-loading .portal-skeleton-intro-copy{width:min(100%,34rem);height:4.7rem;margin-top:1.75rem}.portal-library-loading .portal-skeleton-intro-action{border-radius:999px;width:10.5rem;height:3rem;margin-top:2rem}.portal-library-loading .portal-loading-feature{min-height:31rem}.portal-library-loading .portal-loading-copy{align-content:start;gap:0;display:grid}.portal-library-loading .portal-loading-copy .portal-skeleton-kicker{margin-bottom:1.65rem}.portal-library-loading .portal-skeleton-feature-title{width:min(88%,24rem);height:7rem}.portal-library-loading .portal-skeleton-author{width:10rem;height:1rem;margin-top:1rem}.portal-library-loading .portal-skeleton-description{width:100%;height:4.5rem;margin-top:1.45rem}.portal-library-loading .portal-skeleton-metadata{width:86%;height:1.25rem;margin-top:1.7rem}.portal-library-loading .portal-skeleton-feature-action{border-radius:999px;width:9rem;height:3rem;margin-top:2rem}.portal-library-loading .portal-loading-cover,.portal-library-loading .portal-loading-tile-cover{box-shadow:none;background:linear-gradient(135deg,#ffffff59,#0000 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var(--portal-border);grid-template-columns:minmax(0,1fr);align-items:end;gap:2.5rem;margin-bottom:clamp(2.25rem,5vw,3.75rem);padding-bottom:clamp(2rem,4vw,3.25rem);display:grid}.portal-settings-loading-kicker{width:7rem;height:.75rem}.portal-settings-loading-title{width:min(28rem,88%);height:clamp(3.25rem,6vw,5.4rem);margin-top:1.1rem}.portal-settings-loading-copy{width:min(32rem,100%);height:1.1rem;margin-top:1.35rem}.portal-settings-loading-stack{gap:1.5rem;display:grid}.portal-settings-loading-panel{border:1px solid var(--portal-border);background:var(--portal-surface);border-radius:1.1rem;padding:1.5rem;overflow:hidden;box-shadow:0 .75rem 1.75rem #20384c0b}.portal-settings-loading-panel-title{width:12rem;height:1.35rem}.portal-settings-loading-panel-copy{width:min(24rem,80%);height:.8rem;margin-top:.65rem}.portal-settings-loading-rows{border-top:1px solid var(--portal-border);margin-top:1.25rem}.portal-settings-loading-row{border-bottom:1px solid var(--portal-border);justify-content:space-between;align-items:center;gap:1.5rem;min-height:5.25rem;display:flex}.portal-settings-loading-row:last-child{border-bottom:0}.portal-settings-loading-row-title{width:min(18rem,60%);height:.95rem}.portal-settings-loading-row-control{border-radius:999px;width:4.5rem;height:1.5rem}@media (prefers-reduced-motion:reduce){.portal-settings-loading .portal-skeleton{animation:none}}.portal-settings-shell .portal-back-link{min-height:2.25rem;color:var(--portal-action);margin-bottom:clamp(1.25rem,2.5vw,2rem)}.portal-settings-shell .portal-settings-hero{border-bottom:1px solid var(--portal-border);grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:2.5rem;margin-bottom:clamp(2.25rem,5vw,3.75rem);padding-bottom:clamp(2rem,4vw,3.25rem);display:grid}.portal-settings-shell .portal-settings-heading .portal-kicker,.portal-settings-shell .portal-auth-gate .portal-kicker{color:var(--portal-action);margin:0 0 1.1rem}.portal-settings-shell .portal-settings-heading-back{min-height:2rem;margin:0 0 1.1rem}.portal-settings-shell .portal-settings-heading h1,.portal-settings-shell .portal-auth-gate h1{max-width:12ch;color:var(--portal-ink);font:500 clamp(3.25rem, 6vw, 5.4rem)/.94 var(--portal-serif);letter-spacing:-.052em;text-wrap:balance;margin:0}.portal-settings-shell .portal-account-settings-page .portal-settings-heading h1{white-space:nowrap;max-width:18ch}.portal-settings-shell .portal-settings-heading>div>p:last-child,.portal-settings-shell .portal-auth-gate>p:not(.portal-kicker){max-width:42rem;color:var(--portal-ink-soft);margin:1.35rem 0 0;font-size:1rem;line-height:1.7}.portal-settings-identity{border:1px solid var(--portal-border);background:var(--portal-surface);color:var(--portal-ink-soft);border-radius:999px;align-items:center;gap:.65rem;padding:.75rem 1rem;font-size:.78rem;font-weight:650;display:inline-flex}.portal-settings-shell .portal-settings-section{margin:0 0 1.5rem}.portal-settings-shell .portal-settings-panel{border:1px solid var(--portal-border);background:var(--portal-surface);border-radius:1.1rem;overflow:hidden;box-shadow:0 .75rem 1.75rem #20384c0b}.portal-settings-section-heading{border-bottom:1px solid var(--portal-border);background:var(--portal-section-surface);align-items:center;gap:1rem;padding:1.4rem 1.5rem;display:flex}.portal-settings-section-icon,.portal-account-action-icon{background:var(--portal-action-soft);width:2.6rem;height:2.6rem;color:var(--portal-action);border-radius:.75rem;flex:none;place-items:center;display:inline-grid}.portal-settings-section-icon svg,.portal-account-action-icon svg{width:1.15rem;height:1.15rem}.portal-settings-section-heading p,.portal-settings-section-heading h2{margin:0}.portal-settings-section-heading p{color:var(--portal-action);letter-spacing:.1em;text-transform:uppercase;margin-bottom:.22rem;font-size:.66rem;font-weight:750}.portal-settings-section-heading h2{color:var(--portal-ink);font:600 1.35rem/1.2 var(--portal-serif);letter-spacing:-.015em}.portal-settings-shell .portal-settings-card,.portal-settings-shell .portal-progress-reset-list{background:var(--portal-surface);border:0}.portal-settings-shell .portal-settings-card>label,.portal-settings-shell .portal-progress-reset-list>div,.portal-account-action-row{border-bottom:1px solid var(--portal-border);justify-content:space-between;align-items:center;gap:1.5rem;min-height:5.25rem;padding:1.1rem 1.5rem;display:flex}.portal-settings-shell .portal-settings-card>label:last-child,.portal-settings-shell .portal-progress-reset-list>div:last-child,.portal-account-action-row:last-child{border-bottom:0}.portal-settings-control-copy{gap:.28rem;min-width:0;display:grid}.portal-settings-control-copy strong{color:var(--portal-ink);font-size:.92rem}.portal-settings-control-copy small{color:var(--portal-ink-soft);font-size:.76rem;font-weight:450;line-height:1.45}.portal-settings-shell :is(.portal-settings-card,.user-overview-settings-card) 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.portal-settings-page button,.portal-settings-shell .portal-settings-account-link{border:1px solid var(--portal-action);width:fit-content;min-height:2.75rem;color:var(--portal-action);font:700 .78rem/1 var(--portal-sans);cursor:pointer;background:0 0;border-radius:999px;justify-content:center;align-items:center;gap:.55rem;padding:.7rem 1.15rem;text-decoration:none;display:inline-flex}.portal-settings-shell .portal-settings-page button:hover,.portal-settings-shell .portal-settings-account-link:hover{background:var(--portal-action-hover);color:#fff}.portal-settings-shell .portal-settings-page .portal-progress-breakdown-toggle:hover,.portal-settings-shell .portal-settings-page .portal-progress-exercise:hover,.portal-settings-shell .portal-settings-page .portal-progress-reset-button:hover{border-color:var(--portal-action);background:var(--portal-action-soft);color:var(--portal-ink)}.portal-settings-shell .portal-settings-page .portal-progress-exercise:hover .portal-progress-exercise-bar{background:color-mix(in srgb, var(--portal-action) 24%, var(--portal-action-soft))}.portal-settings-shell .portal-settings-page button:disabled{cursor:not-allowed;opacity:.55}.portal-settings-shell .portal-settings-primary{margin-top:1.5rem;background:var(--portal-action)!important;color:#fff!important}.portal-account-actions{padding:0;display:grid}.portal-account-actions>p{border-bottom:1px solid var(--portal-border);background:var(--portal-account-surface);color:var(--portal-olive-dark);margin:0;padding:.85rem 1.5rem;font-size:.78rem}.portal-account-action-row{grid-template-columns:auto minmax(0,1fr) auto;display:grid}.portal-settings-danger-panel .portal-settings-section-heading{background:var(--portal-surface)}.portal-settings-danger-panel .portal-settings-section-icon{background:var(--portal-surface);color:var(--state-danger-border)}.portal-settings-danger-panel .portal-settings-section-icon svg{width:1.55rem;height:1.55rem}.portal-settings-shell .user-overview-danger-card{border:1px solid var(--portal-border);background:var(--portal-surface);border-radius:.85rem;gap:1.5rem;margin:1rem 1.25rem 1.25rem;padding:1.85rem 2rem 2rem}.portal-settings-shell .user-overview-danger-title{color:var(--portal-ink);font:600 1rem/1.35 var(--portal-serif)}.portal-settings-shell .user-overview-danger-description{color:var(--portal-ink-soft);font-size:.82rem;line-height:1.6}.portal-settings-shell .portal-settings-danger-panel .user-overview-danger-trigger{border-color:var(--state-danger-border);background:var(--state-danger-border);color:#fff;transition:background-color .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out,color .18s ease-out,transform .18s ease-out}.portal-settings-shell .portal-settings-danger-panel .user-overview-danger-trigger[aria-expanded=true]{border-color:var(--state-danger-border);background:color-mix(in srgb, var(--state-danger-border) 86%, #000);color:#fff;box-shadow:0 0 0 .2rem color-mix(in srgb, 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var(--portal-action);background:var(--portal-surface);box-shadow:none;border-radius:.8rem;gap:1rem;padding:1.35rem;display:grid}.portal-progress-chapter-header{grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:1rem;display:grid}.portal-progress-circle{background:conic-gradient(var(--portal-action) var(--portal-progress-value), color-mix(in srgb, var(--portal-border) 54%, var(--portal-surface)) 0);border-radius:50%;place-items:center;width:6.25rem;height:6.25rem;display:grid;position:relative}.portal-progress-circle-content{background:var(--portal-surface);text-align:center;border-radius:50%;width:auto;height:auto;display:block;position:absolute;inset:.4rem}.portal-progress-circle-content strong{color:var(--portal-ink);font:600 1.65rem/1 var(--portal-serif);white-space:nowrap;position:absolute;top:calc(50% - .55rem);left:50%;transform:translate(-50%,-50%)}.portal-progress-circle-content 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.7rem;font-size:.74rem}.portal-settings-shell .portal-settings-page .portal-progress-reset-confirmation .portal-progress-reset-confirm{border-color:var(--portal-action);background:var(--portal-action-soft);color:var(--portal-ink)}.portal-settings-shell .portal-settings-page .portal-progress-reset-confirmation .portal-progress-reset-cancel{border-color:var(--portal-border);color:var(--portal-ink-soft);background:0 0}.portal-settings-shell .portal-settings-page .portal-progress-reset-confirmation button:hover{border-color:var(--portal-action);background:var(--portal-action-soft);color:var(--portal-ink)}.portal-progress-exercise-bar{background:color-mix(in srgb, var(--portal-border) 70%, white);border-radius:999px;width:100%;height:.55rem;overflow:hidden}.portal-progress-exercise-bar span{background:var(--portal-action);height:100%;display:block}.portal-progress-breakdown{border:1px solid var(--portal-border);background:var(--portal-surface);border-radius:.65rem;overflow:hidden}.portal-settings-shell .portal-settings-page .portal-progress-breakdown-toggle{background:var(--portal-surface);width:100%;min-height:2.65rem;color:var(--portal-ink);font:700 .8rem/1.2 var(--portal-sans);text-align:left;border:0;border-radius:0;justify-content:flex-start;align-items:center;padding:.65rem .85rem;display:flex}.portal-progress-breakdown-toggle svg{flex:none;transition:transform .16s ease-out}.portal-progress-breakdown-toggle svg.is-expanded{transform:rotate(180deg)}.portal-progress-exercises{border-top:1px solid var(--portal-border);background:var(--portal-surface);gap:.8rem;padding:1.15rem;display:grid}.portal-progress-exercises-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:.8rem;display:grid}.portal-settings-shell .portal-settings-page .portal-progress-exercise{border-color:var(--portal-border);background:var(--portal-surface);text-align:left;border-radius:.35rem;grid-template-columns:auto minmax(0,1fr);place-items:center stretch;gap:.45rem 1rem;width:100%;min-width:0;min-height:4.5rem;padding:.58rem .85rem;display:grid}.portal-progress-exercise-content{gap:.45rem;min-width:0;display:grid}.portal-progress-exercise-heading{justify-content:space-between;align-items:center;gap:.75rem;min-width:0;display:flex}.portal-progress-exercise-title-copy{gap:.15rem;min-width:0;display:grid}.portal-progress-exercise-icon{border:1px solid color-mix(in srgb, var(--portal-action) 30%, var(--portal-border));background:color-mix(in srgb, var(--portal-action) 12%, var(--portal-surface));width:2rem;height:2rem;color:var(--portal-action);border-radius:50%;flex:none;place-items:center;display:inline-grid}.portal-progress-exercise strong{color:var(--portal-ink);font:600 .88rem/1.35 var(--portal-serif);text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.portal-progress-exercise small{color:var(--portal-ink-soft);white-space:nowrap;flex:none;font-size:.75rem}.portal-progress-exercise-score{align-self:start}.portal-progress-exercise-bar{height:.3rem}.portal-progress-state{color:var(--portal-ink-soft);font-size:.85rem}.portal-progress-loading{gap:1rem;display:grid}.portal-progress-loading-card{border:1px solid var(--portal-border);border-top:.3rem solid color-mix(in srgb, var(--portal-action) 45%, var(--portal-border));background:var(--portal-surface);border-radius:.8rem;grid-template-columns:auto minmax(0,1fr);align-items:center;gap:1rem;min-height:8.9rem;padding:1.35rem;display:grid}.portal-progress-skeleton-circle,.portal-progress-skeleton-line{background:linear-gradient(100deg, color-mix(in srgb, var(--portal-border) 70%, var(--portal-surface)) 20%, color-mix(in srgb, var(--portal-action) 15%, var(--portal-surface)) 50%, color-mix(in srgb, 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.portal-settings-page .portal-progress-reset-button:focus-visible{outline:2px solid var(--portal-action);outline-offset:3px}.portal-settings-shell .portal-settings-back{margin-top:2rem}.portal-settings-shell .portal-settings-page .portal-settings-back{border-color:color-mix(in srgb, var(--portal-action) 60%, var(--portal-border));background:color-mix(in srgb, var(--portal-action) 9%, var(--portal-surface));color:var(--portal-action);transition:background-color .18s ease-out,border-color .18s ease-out,color .18s ease-out}.portal-settings-shell .portal-settings-page .portal-settings-back:hover{border-color:var(--portal-action);background:color-mix(in srgb, var(--portal-action) 16%, var(--portal-surface));color:var(--portal-action-hover)}.portal-settings-shell .portal-auth-gate{align-content:center;justify-items:start;min-height:calc(100vh - 10rem);display:grid}.portal-book-settings-link{color:var(--portal-olive-dark);-webkit-text-decoration-color:var(--portal-gold);text-decoration-color:var(--portal-gold);text-underline-offset:.25rem;align-items:center;gap:.55rem;margin-top:1.35rem;font-size:.82rem;font-weight:700;display:inline-flex}.portal-book-settings-link svg{width:1rem;height:1rem}@media (width<=48rem){.portal-settings-shell .portal-settings-hero{grid-template-columns:1fr;align-items:start}.portal-settings-identity{max-width:100%;overflow:hidden}.portal-settings-identity span{text-overflow:ellipsis;overflow:hidden}}@media (width<=40rem){.portal-settings-shell .portal-settings-heading h1,.portal-settings-shell .portal-auth-gate h1{font-size:clamp(2.75rem,14vw,4rem)}.portal-settings-shell .portal-account-settings-page .portal-settings-heading h1,.portal-settings-shell .portal-book-settings-page .portal-settings-heading h1{overflow-wrap:anywhere;white-space:normal;max-width:100%;font-size:clamp(2.2rem,10.5vw,3.25rem)}.portal-settings-shell .portal-settings-card>label,.portal-settings-shell .portal-progress-reset-list>div,.portal-account-action-row{flex-direction:column;align-items:flex-start}.portal-settings-shell .user-overview-excluded-words-empty{text-align:center;padding-inline:.5rem}.portal-account-action-row{grid-template-columns:auto minmax(0,1fr)}.portal-account-action-row button{grid-column:1/-1}.portal-settings-shell .portal-settings-card select{width:100%}.portal-settings-shell .user-overview-setting-row{align-items:center;padding:1rem 1.1rem}.portal-settings-shell .user-overview-setting-description{display:block}.portal-settings-shell .user-overview-setting-row input[type=checkbox]{top:50%;right:.75rem;transform:translateY(-50%)}.portal-settings-shell .user-overview-danger-card{margin:.75rem;padding:1.35rem 1.1rem 1.5rem}}.portal-library .portal-footer-minimal nav{justify-self:start}.portal-book-opening{flex-direction:column;min-height:100vh;display:flex}.portal-book-opening-main{flex:1 0 auto;place-items:center;min-height:0;padding-block:3rem 5rem;display:grid}.portal-book-opening-copy{text-align:center;width:min(100%,38rem)}.portal-book-opening-mark{justify-content:center;align-items:end;gap:.28rem;width:5.5rem;height:4.5rem;margin:0 auto 2rem;display:flex}.portal-book-opening-mark span{transform-origin:bottom;border-radius:.12rem;width:1rem;animation:1.1s ease-in-out infinite alternate portal-book-rise}.portal-book-opening-mark span:first-child{background:var(--portal-action);height:3.45rem}.portal-book-opening-mark span:nth-child(2){background:color-mix(in srgb, var(--portal-action) 72%, #fff);height:4rem;animation-delay:.12s}.portal-book-opening-mark span:nth-child(3){background:color-mix(in srgb, var(--portal-action) 45%, #fff);height:3.15rem;animation-delay:.24s}.portal-book-opening-copy 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.portal-book-tile{grid-template-columns:minmax(0,1fr);align-items:start;gap:1.5rem}.portal-library .portal-book-tile .portal-book-tile-cover-link,.portal-library .portal-book-tile>.portal-cover{justify-self:center;width:min(62vw,13rem)}.portal-library .portal-book-tile-copy h3{font-size:1.45rem}.portal-library .portal-book-tile-meta{font-size:.7rem}.portal-library .portal-footer-minimal nav{gap:.3rem .9rem}.portal-book-opening-main{min-height:0;padding-block:2rem 4rem}.portal-book-opening-copy h1{font-size:clamp(2.35rem,11vw,3.25rem)}}@media (prefers-reduced-motion:reduce){.portal-book-opening-mark span{animation:none}.portal-progress-breakdown-toggle svg{transition:none}.portal-progress-skeleton-circle,.portal-progress-skeleton-line{animation:none}}@media (width<=60rem){.portal-progress-exercises-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width<=40rem){.portal-progress-chapter{padding:1rem}.portal-progress-chapter-header{grid-template-columns:auto minmax(0,1fr);align-items:start}.portal-progress-circle,.portal-progress-skeleton-circle{width:5.25rem;height:5.25rem}.portal-progress-circle-content strong{font-size:1.35rem}.portal-progress-chapter-actions{grid-column:1/-1;width:100%}.portal-settings-shell .portal-settings-page .portal-progress-reset-button{width:100%}.portal-progress-exercises-grid{grid-template-columns:1fr}.portal-progress-exercise-heading{gap:.5rem}}@media (width<=48rem){.portal-legal-page .legal-card.empty-content,.portal-faq-page .portal-faq-card.empty-content{max-width:none;box-shadow:none;background:0 0;border:0;border-radius:0;margin:0;padding:0}.portal-footer .portal-version{display:none}.portal-library.portal-page-shell .portal-footer-minimal{box-shadow:none;background:0 0;border-top:0}.portal-library.portal-page-shell .portal-footer-minimal .portal-footer-inner{min-height:0;box-shadow:none;background:0 0;border:0;padding-block:.65rem 1rem}}.bookarium-portal 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select,.user-overview-setting-number-input,.user-overview-excluded-words-search,.user-overview-danger-card,.portal-settings-account-card,.user-overview-accordion-section,.portal-progress-chapter,.portal-progress-reset-button,.portal-progress-reset-confirmation,.portal-progress-breakdown,.portal-progress-exercise,.portal-progress-loading-card,.portal-library-loading .portal-skeleton,.portal-settings-loading .portal-skeleton,.portal-progress-skeleton-line,.portal-progress-exercise-bar,.portal-progress-skeleton-bar),.bookarium-portal.portal-settings-shell .portal-settings-page .portal-account-action-row button,.bookarium-portal.portal-settings-shell .portal-settings-page .portal-settings-danger-panel .user-overview-danger-trigger,.bookarium-portal.portal-settings-shell .portal-settings-page .portal-settings-danger-panel .user-overview-danger-confirm-actions button{border-radius:.3rem}.bookarium-portal.portal-settings-shell .portal-settings-page .portal-settings-danger-panel .user-overview-danger-confirm-actions button:first-child{border-color:color-mix(in srgb, var(--state-danger-border) 34%, var(--portal-border));background:color-mix(in srgb, var(--state-danger-border) 12%, var(--portal-surface));color:var(--state-danger-text)}.bookarium-portal.portal-settings-shell .portal-settings-page .portal-settings-danger-panel .user-overview-danger-confirm-actions button:first-child:hover,.bookarium-portal.portal-settings-shell .portal-settings-page .portal-settings-danger-panel .user-overview-danger-confirm-actions button:first-child:focus-visible{border-color:var(--state-danger-border);background:var(--state-danger-border);color:#fff}.portal-library{--portal-canvas:#fbfcfd;--portal-surface:#fff;--portal-surface-soft:#f3f6f9;--portal-ink:#142231;--portal-ink-soft:#536277;--portal-olive:#315f43;--portal-olive-dark:#254c35;--portal-gold:#d3a543;--portal-border:#dfe5ea;--portal-focus:#2e6f9d;--portal-feature-surface:#f3f6fa;--portal-action-soft:#e8f0f6;--portal-section-surface:#f7f9fb;--portal-input-surface:#f8fafb;--portal-account-surface:#f3f8f4;--portal-account-surface-hover:#edf5ef;--portal-emphasis-border:var(--portal-border);background:var(--portal-canvas)}.portal-library[data-portal-theme=blue]{--portal-canvas:#fbfcfd;--portal-surface:#fff;--portal-surface-soft:#f3f6f9;--portal-ink:#142231;--portal-ink-soft:#536277;--portal-olive:#315f43;--portal-olive-dark:#254c35;--portal-gold:#d3a543;--portal-action:#377cac;--portal-action-hover:#2d678e;--portal-border:#dfe5ea;--portal-focus:#2e6f9d;--portal-feature-surface:#f3f6fa;--portal-action-soft:#e8f0f6;--portal-section-surface:#f7f9fb;--portal-input-surface:#f8fafb;--portal-account-surface:#eef5fa;--portal-account-surface-hover:#e4eff7}.portal-library[data-portal-theme=forest]{--portal-canvas:#f7faf7;--portal-surface:#fff;--portal-surface-soft:#edf4ee;--portal-ink:#1d2d25;--portal-ink-soft:#587064;--portal-olive:#2f6b52;--portal-olive-dark:#23513e;--portal-gold:#c89b3c;--portal-action:#2f6b52;--portal-action-hover:#25543f;--portal-border:#d8e5da;--portal-focus:#367761;--portal-feature-surface:#edf5ef;--portal-action-soft:#e2efe7;--portal-section-surface:#f4f8f4;--portal-input-surface:#f8fbf8;--portal-account-surface:#eef7f0;--portal-account-surface-hover:#e4f1e7}.portal-library[data-portal-theme=marigold]{--portal-canvas:#fffaf5;--portal-surface:#fffefd;--portal-surface-soft:#fff0e1;--portal-ink:#3a2b22;--portal-ink-soft:#745c4d;--portal-olive:#bd7734;--portal-olive-dark:#8d501f;--portal-gold:#e0a357;--portal-action:#cf762f;--portal-action-hover:#b86425;--portal-border:#f0d7ba;--portal-focus:#c66f2b;--portal-feature-surface:#fff4e6;--portal-action-soft:#ffead6;--portal-section-surface:#fff9f1;--portal-input-surface:#fffbf6;--portal-account-surface:#fff3e4;--portal-account-surface-hover:#ffead7;--portal-button:#e28a3d;--portal-button-hover:#cf762e;--portal-button-ink:#fffaf1}.portal-library[data-portal-theme=marigold] .portal-primary-action{border-color:var(--portal-button);background:var(--portal-button);color:var(--portal-button-ink)}.portal-library[data-portal-theme=marigold] .portal-book-feature .portal-primary-action:hover,.portal-library[data-portal-theme=marigold] .portal-primary-action:hover{border-color:var(--portal-button-hover);background:var(--portal-button-hover);color:var(--portal-button-ink)}.portal-library[data-portal-theme=marigold] .portal-account-trigger{border-color:var(--portal-button);background:var(--portal-button);color:var(--portal-button-ink)}.portal-library[data-portal-theme=marigold] .portal-account-trigger:hover,.portal-library[data-portal-theme=marigold] .portal-account-trigger:focus-visible{border-color:var(--portal-button-hover);background:var(--portal-button-hover);color:var(--portal-button-ink)}.portal-library[data-portal-theme=marigold] .portal-account-action-row button{border-color:var(--portal-button);color:var(--portal-button)}.portal-library[data-portal-theme=marigold] .portal-account-action-row button:hover,.portal-library[data-portal-theme=marigold] .portal-account-action-row button:focus-visible{border-color:var(--portal-button-hover);background:var(--portal-button-hover);color:var(--portal-button-ink)}.portal-library[data-portal-theme=marigold] .portal-settings-primary{border-color:var(--portal-button)!important;background:var(--portal-button)!important;color:var(--portal-button-ink)!important}.portal-library[data-portal-theme=brick]{--portal-canvas:#fdf7f5;--portal-surface:#fffdfc;--portal-surface-soft:#f8e9e5;--portal-ink:#392625;--portal-ink-soft:#735d5a;--portal-olive:#8e4a42;--portal-olive-dark:#67322f;--portal-gold:#c0824c;--portal-action:#c34b45;--portal-action-hover:#9f3935;--portal-border:#ecd8d3;--portal-focus:#a24b41;--portal-feature-surface:#fbebe7;--portal-action-soft:#f7ded9;--portal-section-surface:#fdf5f3;--portal-input-surface:#fff9f7;--portal-account-surface:#f8ece8;--portal-account-surface-hover:#f2dfda}.portal-library[data-portal-theme=sage]{--portal-canvas:#f4f5ee;--portal-surface:#fffef8;--portal-surface-soft:#eaf5dc;--portal-ink:#203321;--portal-ink-soft:#526a50;--portal-olive:#4c814b;--portal-olive-dark:#315f34;--portal-gold:#d9a441;--portal-action:#4c814b;--portal-action-hover:#3f7041;--portal-border:#cde2be;--portal-focus:#4c814b;--portal-feature-surface:#edf7df;--portal-action-soft:#dcefd0;--portal-section-surface:#f8fcef;--portal-input-surface:#fcfff7;--portal-account-surface:#e9f6dd;--portal-account-surface-hover:#dcefcf}.portal-library .portal-book-feature.is-recommended{border:1px solid var(--portal-emphasis-border)}.portal-library[data-portal-theme=sage] .portal-skeleton{background:linear-gradient(100deg,#e4e7e4 22%,#f7f8f6 45%,#e4e7e4 70%)}.portal-library[data-portal-theme=teal]{--portal-canvas:#f4faf9;--portal-surface:#fefffe;--portal-surface-soft:#e3f1f0;--portal-ink:#18302f;--portal-ink-soft:#56716f;--portal-olive:#2d7b78;--portal-olive-dark:#205c5a;--portal-gold:#c69b46;--portal-action:#2d7b78;--portal-action-hover:#22605e;--portal-border:#d3e5e3;--portal-focus:#2f7772;--portal-feature-surface:#e5f3f1;--portal-action-soft:#d9edeb;--portal-section-surface:#f2f9f8;--portal-input-surface:#f7fcfb;--portal-account-surface:#e6f2ef;--portal-account-surface-hover:#dbe9e7}.portal-library[data-portal-theme=plum]{--portal-canvas:#faf7fb;--portal-surface:#fffdfd;--portal-surface-soft:#f0e9f3;--portal-ink:#302437;--portal-ink-soft:#6b5c71;--portal-olive:#704b79;--portal-olive-dark:#51345c;--portal-gold:#bf9552;--portal-action:#704b79;--portal-action-hover:#57365f;--portal-border:#e2d7e7;--portal-focus:#6d4b78;--portal-feature-surface:#f2e9f4;--portal-action-soft:#eadcef;--portal-section-surface:#faf6fb;--portal-input-surface:#fcf9fd;--portal-account-surface:#f2eaf4;--portal-account-surface-hover:#e9dceb}.portal-page-shell{flex-direction:column;display:flex}.portal-page-shell>main{flex:1 0 auto}.portal-page-shell>.portal-footer{margin-top:auto}.bookarium-app{background:radial-gradient(circle at 12% 4%, color-mix(in srgb, var(--accent-color) 10%, transparent), transparent 32rem), var(--bg-primary);width:100%;min-width:0;min-height:100vh;color:var(--text-primary);flex:auto}.bookarium-page{width:min(100% - 2 * var(--space-5), 72rem);padding:clamp(var(--space-8), 8vw, var(--space-12)) 0;margin:0 auto}.bookarium-hero{max-width:46rem;margin-bottom:var(--space-8)}.bookarium-hero h1{margin:var(--space-2) 0 var(--space-3);font-size:clamp(2rem,6vw,4rem);line-height:var(--line-height-tight)}.bookarium-hero>p:last-child{color:var(--text-secondary);font-size:var(--font-size-lg);line-height:var(--line-height-relaxed)}.bookarium-eyebrow{color:var(--accent-color);font-size:var(--font-size-xs);font-weight:var(--font-weight-heavy);letter-spacing:var(--letter-spacing-caps);text-transform:uppercase;margin:0}.bookarium-grid{gap:var(--space-5);grid-template-columns:repeat(auto-fit,minmax(min(100%,21rem),1fr));display:grid}.bookarium-card{gap:var(--space-4);min-height:11rem;padding:var(--space-6);border:1px solid var(--border-color);background:var(--card-bg);color:var(--text-primary);box-shadow:var(--surface-shadow-card);transition:transform var(--duration-base) var(--easing-standard), border-color var(--duration-base) var(--easing-standard);grid-template-columns:auto 1fr auto;align-items:center;text-decoration:none;display:grid}.bookarium-card:hover,.bookarium-card:focus-visible{border-color:var(--accent-color);transform:translateY(-3px)}.bookarium-card:focus-visible{outline:var(--focus-outline-width) solid var(--accent-color);outline-offset:var(--focus-outline-offset-md)}.bookarium-card-icon{background:color-mix(in srgb, var(--accent-color) 13%, var(--card-bg));width:3.25rem;height:3.25rem;color:var(--accent-color);place-items:center;display:grid}.bookarium-card-copy h2,.bookarium-card-copy p{margin:0}.bookarium-card-copy h2{margin:var(--space-1) 0 var(--space-2)}.bookarium-card-copy p{color:var(--text-secondary)}.bookarium-card-meta{font-size:var(--font-size-xs);font-weight:var(--font-weight-bold);text-transform:uppercase;letter-spacing:var(--letter-spacing-caps)}.bookarium-card-locked{opacity:.72}.bookarium-chapter-list{border-top:1px solid var(--border-color);margin:0;padding:0;list-style:none}.bookarium-chapter-list li{border-bottom:1px solid var(--border-color)}.bookarium-chapter-link{align-items:center;gap:var(--space-4);padding:var(--space-5) var(--space-3);color:var(--text-primary);grid-template-columns:minmax(7rem,.4fr) 1fr auto;text-decoration:none;display:grid}.bookarium-chapter-link:hover,.bookarium-chapter-link:focus-visible{background:color-mix(in srgb, var(--accent-color) 7%, transparent)}.bookarium-chapter-number{color:var(--text-secondary);font-size:var(--font-size-sm);font-weight:var(--font-weight-bold)}.bookarium-chapter-title{align-items:center;gap:var(--space-2);font-weight:var(--font-weight-semibold);display:inline-flex}.bookarium-status{place-items:center;min-height:calc(100vh - 4.25rem);display:grid}.bookarium-status-card{width:min(100%,36rem);padding:var(--space-8);border:1px solid var(--border-color);background:var(--card-bg);text-align:center;box-shadow:var(--surface-shadow-card)}.bookarium-status-card h1{margin:var(--space-2) 0}.bookarium-status-card>p:last-of-type{color:var(--text-secondary);line-height:var(--line-height-relaxed)}.bookarium-button{margin-top:var(--space-4);padding:var(--space-3) var(--space-5);border:1px solid var(--accent-color);background:var(--accent-color);color:var(--text-on-accent,white);font:inherit;font-weight:var(--font-weight-bold);cursor:pointer}.bookarium-reader-shell{flex-direction:column;height:100vh;display:flex;overflow:hidden}.app-main-content>.bookarium-reader-shell{height:100%}.bookarium-reader-shell .chapter-view{flex:1;min-height:0}.reader-seo-breadcrumbs{box-sizing:border-box;border-bottom:1px solid var(--border-color);background:var(--bg-primary);width:100%;color:var(--text-secondary);padding:.6rem 1.25rem;font-size:.72rem}.bookarium-supplemental-status{border-bottom:1px solid color-mix(in srgb, var(--border-color) 72%, transparent);background:color-mix(in srgb, var(--accent-color) 10%, var(--card-bg));color:var(--text-primary);text-align:center;padding:.65rem 1rem;font-size:.9rem;line-height:1.4}@media (width<=680px){.bookarium-chapter-link{grid-template-columns:1fr auto}.bookarium-chapter-number{grid-column:1/-1}}.app-container{background:var(--bg-primary);width:100%;height:100vh;min-height:100vh;display:flex}.app-main-shell{flex-direction:column;flex:1;min-width:0;height:100vh;display:flex}.app-main-shell-sidebar-collapsed{flex-basis:0}.app-main-content{flex:1;min-height:0}.app-main-content-sidebar-collapsed{width:100%}.app-status-card{flex-direction:column;gap:1rem;display:flex}.app-status-card h2,.app-status-card p{margin:0}.backend-unavailable-view{min-height:100%;padding:clamp(var(--space-5), 6vh, var(--space-12)) clamp(var(--space-4), 3vw, var(--space-8));background:radial-gradient(circle at 50% 22%, #bfe2e147, transparent 38%), linear-gradient(180deg, color-mix(in srgb, var(--bg-primary) 92%, #edf7f4), var(--bg-primary));place-items:center;display:grid}.backend-unavailable-view .backend-unavailable-card{width:min(100%,72rem);box-shadow:none;text-align:center;background:0 0;border:0;border-radius:0;align-items:center;gap:0;padding:0}.backend-unavailable-illustration{aspect-ratio:1672/941;background:linear-gradient(135deg, color-mix(in srgb, #dcefe8 82%, var(--card-bg)), color-mix(in srgb, #c5e4e5 76%, var(--card-bg)));width:100%;box-shadow:none;border-radius:0;position:relative;overflow:hidden}.backend-unavailable-illustration:before,.backend-unavailable-illustration:after{content:"";pointer-events:none;position:absolute}.backend-unavailable-illustration:before{background:linear-gradient(168deg,#0000 0 39%,#93b879b3 40% 48%,#0000 49%),linear-gradient(192deg,#0000 0 44%,#759e6f9e 45% 53%,#0000 54%);inset:18% 0 0}.backend-unavailable-illustration:after{background:linear-gradient(#b8dcdfc7,#82bcc6ad);inset:55% 0 0}.backend-unavailable-image{object-fit:cover;width:100%;height:100%;display:block}.backend-unavailable-image-frame{--backend-frame-inset:clamp(.45rem, 1vw, .8rem);z-index:1;box-sizing:border-box;filter:drop-shadow(0 1.1rem 2.5rem #20312d29);position:absolute;inset:0;overflow:hidden}.backend-unavailable-image-viewport{z-index:1;position:absolute;inset:0}.backend-unavailable-image-frame:before,.backend-unavailable-image-frame:after{content:"";z-index:2;pointer-events:none;position:absolute}.backend-unavailable-image-frame:before{border:2px solid #b39f7f;inset:0;box-shadow:inset 0 0 0 .3rem #f8f1e4e0,inset 0 0 0 .42rem #81653b38}.backend-unavailable-image-frame:after{inset:var(--backend-frame-inset);background:linear-gradient(#8b6d42 0 0) 0 0/2rem 2px no-repeat,linear-gradient(#8b6d42 0 0) 0 0/2px 2rem no-repeat,linear-gradient(#8b6d42 0 0) 100% 0/2rem 2px no-repeat,linear-gradient(#8b6d42 0 0) 100% 0/2px 2rem no-repeat,linear-gradient(#8b6d42 0 0) 0 100%/2rem 2px no-repeat,linear-gradient(#8b6d42 0 0) 0 100%/2px 2rem no-repeat,linear-gradient(#8b6d42 0 0) 100% 100%/2rem 2px no-repeat,linear-gradient(#8b6d42 0 0) 100% 100%/2px 2rem no-repeat,radial-gradient(circle at 0 0,#8b6d42e0 0 .16rem,#0000 .18rem),radial-gradient(circle at 100% 0,#8b6d42e0 0 .16rem,#0000 .18rem),radial-gradient(circle at 0 100%,#8b6d42e0 0 .16rem,#0000 .18rem),radial-gradient(circle at 100% 100%,#8b6d42e0 0 .16rem,#0000 .18rem)}.backend-unavailable-image[hidden]{display:none}.backend-unavailable-action{z-index:2;left:50%;bottom:var(--space-5);position:absolute;transform:translate(-50%)}.backend-unavailable-copy{z-index:2;top:clamp(var(--space-3), 4vw, var(--space-6));width:calc(100% - (2 * var(--space-6)));position:absolute;left:50%;transform:translate(-50%)}.backend-unavailable-copy h2{color:#20312d;font-size:clamp(var(--font-size-2xl), 5vw, var(--font-size-3xl));line-height:var(--line-height-tight);text-shadow:0 1px #fffc,0 3px 14px #ffffffd9}.backend-unavailable-copy p{margin-top:var(--space-2);color:#000;font-size:clamp(var(--font-size-sm), 2.1vw, var(--font-size-base));font-weight:var(--font-weight-semibold);letter-spacing:normal;text-transform:none;text-shadow:0 1px #ffffffb8,0 2px 10px #ffffffc7}.shell-view .empty-content{max-width:var(--content-width-legal);width:100%;margin:var(--space-12) auto;box-shadow:none;border-radius:var(--radius-none);padding:var(--space-10) var(--space-7) var(--space-12);background:0 0}.legal-card,.legal-copy{text-align:left}.legal-card h2{font-size:var(--font-size-2xl)}.legal-copy h3{margin-top:var(--space-6);margin-bottom:var(--space-2);font-size:var(--font-size-lg)}.legal-copy p{margin-bottom:var(--space-3);font-size:var(--font-size-base);line-height:var(--line-height-relaxed)}.legal-copy ul{padding-left:var(--space-5);margin-bottom:var(--space-3)}.legal-copy a{color:var(--accent-color);text-underline-offset:.14em;text-decoration:underline;text-decoration-thickness:.08em}.legal-copy a:hover,.legal-copy a:focus-visible{color:var(--text-primary)}.legal-copy a:focus-visible{outline:var(--focus-outline-width) solid var(--accent-color);outline-offset:var(--focus-outline-offset-md);border-radius:4px}.app-status-detail{font-size:var(--font-size-sm);line-height:var(--line-height-normal);color:var(--text-secondary)}.app-status-action{min-width:12rem;padding:var(--space-3) var(--space-4);border:1px solid var(--border-color);background:var(--bg-primary);color:var(--text-primary);font:inherit;font-weight:var(--font-weight-bold);cursor:pointer;transition:border-color var(--duration-base) var(--easing-standard), background-color var(--duration-base) var(--easing-standard), color var(--duration-base) var(--easing-standard);align-self:center}.app-status-action:hover,.app-status-action:focus-visible{border-color:var(--accent-color)}.app-status-action:focus-visible{outline:var(--focus-outline-width) solid var(--accent-color);outline-offset:var(--focus-outline-offset-md)}.app-sidebar-backdrop,.mobile-topbar{display:none}.mobile-topbar-actions{align-items:center;gap:.6rem;display:inline-flex}.mobile-topbar-dictionary-toggle{width:var(--control-size-lg);height:var(--control-size-lg);color:var(--text-primary);cursor:pointer;background:0 0;border:none;justify-content:center;align-items:center;padding:0;transition:color .15s;display:inline-flex;position:relative}.mobile-topbar-dictionary-toggle:hover,.mobile-topbar-dictionary-toggle:focus-visible,.mobile-topbar-dictionary-toggle-active{color:var(--accent-word-family)}.mobile-topbar-dictionary-toggle-active .mobile-topbar-dictionary-icon path{fill:color-mix(in srgb, var(--accent-word-family) 12%, transparent)}.mobile-topbar-dictionary-toggle:focus-visible{outline:2px solid var(--accent-word-family);outline-offset:2px}.mobile-topbar-dictionary-icon{width:var(--icon-size-sm);height:var(--icon-size-sm)}.mobile-topbar-dictionary-toggle-loading .mobile-topbar-dictionary-icon{opacity:.55}.mobile-topbar-dictionary-toggle-disabled,.mobile-topbar-dictionary-toggle:disabled{cursor:not-allowed;opacity:.5}.mobile-topbar-dictionary-toggle-disabled:hover,.mobile-topbar-dictionary-toggle:disabled:hover{color:var(--text-primary)}.mobile-topbar-dictionary-spinner{border:2px solid color-mix(in srgb, var(--accent-word-family) 24%, transparent);border-top-color:var(--accent-word-family);pointer-events:none;border-radius:50%;animation:.8s linear infinite mobile-topbar-dictionary-spin;position:absolute;inset:.35rem}.desktop-dictionary-loading-toggle{right:clamp(1rem, calc((100vw - var(--content-width-reading)) / 2 + 1rem), 3rem);bottom:calc(1rem + env(safe-area-inset-bottom,0px));z-index:20;position:fixed}.desktop-dictionary-loading-toggle .chapter-dictionary-floating-toggle-disabled{cursor:not-allowed;opacity:.5}@keyframes mobile-topbar-dictionary-spin{to{transform:rotate(360deg)}}.mobile-account-button{border-color:var(--border-color);background:var(--card-bg)}.skeleton-block{border-radius:var(--radius-none);background:color-mix(in srgb, var(--border-color) 58%, var(--card-bg));position:relative;overflow:hidden}.skeleton-block:after{content:"";animation:skeleton-shimmer var(--duration-skeleton) var(--easing-emphasized) infinite;background:linear-gradient(90deg,#0000 0%,#ffffff57 50%,#0000 100%);position:absolute;inset:0;transform:translate(-100%)}.app-content-skeleton-view{min-height:100%;display:block}.app-content-skeleton-shell{max-width:var(--content-width-shell);padding:var(--page-padding-y) var(--page-padding-x);gap:var(--space-8);box-sizing:border-box;grid-template-columns:minmax(0,1fr);min-height:100%;margin:0 auto;display:grid}.app-content-skeleton-card{max-width:var(--content-width-skeleton-card);width:100%;padding:var(--surface-card-padding);background:var(--card-bg);box-shadow:var(--surface-shadow-card);box-sizing:border-box;min-height:100%;margin:0 auto}.app-content-skeleton-header{flex-direction:column;align-items:center;gap:.9rem;margin-bottom:2rem;display:flex}.app-content-skeleton-kicker{width:6.5rem;height:.85rem}.app-content-skeleton-title{border-radius:1rem;width:min(30rem,88%);height:2.6rem}.app-content-skeleton-title-secondary{width:min(18rem,62%);height:1rem}.app-content-skeleton-audio{border:1px solid var(--border-color);flex-direction:column;gap:.8rem;margin-bottom:1.75rem;padding:1rem 1.1rem;display:flex}.app-content-skeleton-audio-label{width:5rem;height:.8rem}.app-content-skeleton-audio-bar{border-radius:.9rem;width:100%;height:2.75rem}.app-content-skeleton-copy{flex-direction:column;gap:.9rem;display:flex}.app-content-skeleton-copy-secondary{margin-top:1.75rem}.app-content-skeleton-exercise-content{flex-direction:column;gap:1rem;display:flex}.app-content-skeleton-exercise-heading{justify-content:space-between;align-items:center;gap:.75rem;display:flex}.app-content-skeleton-exercise-badge{border-radius:.7rem;width:7rem;height:1rem}.app-content-skeleton-exercise-meta{border-radius:.7rem;width:4.5rem;height:.95rem}.app-content-skeleton-exercise-title{border-radius:.8rem;width:min(24rem,92%);height:1.45rem}.app-content-skeleton-exercise-panel{border:1px solid var(--border-color);flex-direction:column;gap:.8rem;padding:1rem;display:flex}.app-content-skeleton-exercise-panel-secondary{margin-top:.2rem}.app-content-skeleton-exercise-actions{flex-wrap:wrap;gap:.7rem;display:flex}.app-content-skeleton-exercise-action{border-radius:.8rem;width:min(8.5rem,48%);min-width:6.5rem;height:2.4rem}.app-content-skeleton-exercise-action-secondary{width:min(10.5rem,56%)}.app-content-skeleton-line{border-radius:.7rem;width:100%;height:1rem}.app-content-skeleton-line-short{width:72%}@keyframes skeleton-shimmer{to{transform:translate(100%)}}@media (width<=768px){.backend-unavailable-view{padding:var(--space-4) var(--page-padding-mobile-x) calc(var(--space-8) + env(safe-area-inset-bottom,0px));place-items:start center}.backend-unavailable-illustration{align-items:center;gap:var(--space-4);aspect-ratio:auto;background:0 0;flex-direction:column;display:flex;overflow:visible}.backend-unavailable-illustration:before,.backend-unavailable-illustration:after{display:none}.backend-unavailable-image-frame{aspect-ratio:1672/941;order:2;width:100%;position:relative;inset:auto}.backend-unavailable-copy{order:1;width:100%;position:static;transform:none}.backend-unavailable-copy p{color:#5e6b68}:root[data-theme=dark] .backend-unavailable-copy h2,:root[data-theme=dark] .backend-unavailable-copy p{color:var(--text-on-dark);text-shadow:none}.backend-unavailable-action{order:3;position:static;transform:none}.backend-unavailable-action .app-status-action{color:#20312d;background:#fff;border-color:#d7dad9}.shell-view .empty-content{margin:0 auto}.app-container{height:100dvh;min-height:100dvh;position:relative;overflow:hidden}.app-main-shell{height:100dvh}.app-sidebar-backdrop{background:var(--overlay-scrim);opacity:0;pointer-events:none;transition:opacity var(--duration-base) var(--easing-standard);z-index:1100;will-change:opacity;border:0;padding:0;display:block;position:fixed;inset:0}.app-sidebar-backdrop.visible{opacity:1;pointer-events:auto}.mobile-topbar{padding:calc(.85rem + env(safe-area-inset-top,0px)) calc(1rem + env(safe-area-inset-right,0px)) .85rem calc(1rem + env(safe-area-inset-left,0px));border-bottom:1px solid var(--border-section);background:var(--mobile-topbar-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);align-items:center;gap:.7rem;display:flex}.mobile-menu-button{min-height:var(--control-size-xl);min-width:var(--control-size-xl);padding:var(--space-2-5);border:1px solid var(--border-color);background:var(--card-bg);color:var(--text-primary);font:inherit;font-weight:var(--font-weight-bold);cursor:pointer;flex:none;justify-content:center;align-items:center;display:inline-flex}.mobile-menu-button:focus-visible{outline:var(--focus-outline-width) solid var(--accent-color);outline-offset:var(--focus-outline-offset-md)}.mobile-menu-icon{flex:none}.mobile-menu-label{display:none}.mobile-topbar-copy{flex-direction:column;flex:1;gap:.15rem;min-width:0;display:flex}.mobile-topbar-kicker,.mobile-topbar-title{margin:0}.mobile-topbar-kicker{font-size:var(--font-size-xs);font-weight:var(--font-weight-heavy);letter-spacing:var(--letter-spacing-caps);text-transform:uppercase;color:var(--text-secondary);line-height:1.1}.mobile-topbar-title{color:var(--text-primary);font-size:.95rem;font-weight:700;line-height:1.2}.mobile-topbar-title-row{align-items:baseline;gap:.4rem;min-width:0;display:flex}.mobile-topbar-title-row .mobile-topbar-title{text-overflow:ellipsis;white-space:nowrap;min-width:0;overflow:hidden}.mobile-topbar .difficulty-badge.mobile-topbar-difficulty-badge{flex-shrink:0;width:1.2rem;min-width:1.2rem;min-height:1.2rem}.mobile-topbar-actions{flex:none}.legal-view{padding:var(--space-3) var(--page-padding-mobile-x) calc(var(--page-padding-mobile-y) + var(--space-4))}.legal-view .legal-card.empty-content{margin:0 auto;padding-top:0}.app-content-skeleton-shell{padding:var(--page-padding-mobile-y) var(--page-padding-mobile-x) calc(var(--page-padding-mobile-y) + var(--space-4));gap:var(--space-5)}.app-content-skeleton-card{padding:var(--surface-card-padding-mobile)}.app-content-skeleton-header{align-items:flex-start;margin-bottom:1.4rem}.app-content-skeleton-title{width:min(18rem,100%);height:2rem}.app-content-skeleton-title-secondary{width:min(11rem,80%)}.app-content-skeleton-exercise-heading{flex-direction:column;align-items:flex-start}.app-content-skeleton-exercise-badge{width:6rem}.app-content-skeleton-exercise-meta{width:5.5rem}.app-content-skeleton-exercise-title{width:min(16rem,100%)}.app-content-skeleton-exercise-action,.app-content-skeleton-exercise-action-secondary{width:100%}}.app-route-state{color:#183b2b;text-align:center;background:#f6f1e7;place-content:center;justify-items:center;gap:1rem;min-height:100dvh;padding:2rem;display:grid}.app-route-state h1,.app-route-state p{margin:0}.app-route-state button{color:#fff;font:inherit;cursor:pointer;background:#183b2b;border:0;border-radius:999px;padding:.75rem 1.1rem}.app-route-state__spinner{border:.2rem solid #183b2b33;border-top-color:#183b2b;border-radius:50%;width:2rem;height:2rem;animation:.7s linear infinite app-route-spin}@keyframes app-route-spin{to{transform:rotate(1turn)}}@media (prefers-reduced-motion:reduce){.app-route-state__spinner{animation-duration:1.5s}}