/* How Things Work: one restrained interface for browsing, reading and the PWA. */
.htw-page{--paper:#f7f8fa;--ink:#182b3a;--muted:#5c6875;--blue:#344bc1;--htw-line:#e0e5eb;--htw-soft:#eef1fb;background:var(--paper);font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);padding-bottom:0}
.htw-page .shell{width:min(1160px,calc(100% - 64px));max-width:1160px}
.htw-page .skip{position:fixed;z-index:200;left:16px;top:-100px;background:var(--ink);color:white;padding:12px 18px;border-radius:8px;text-decoration:none}
.htw-page .skip:focus{top:12px}
.htw-sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
.htw-page a,.htw-page button,.htw-page summary,.htw-page select,.htw-page input{-webkit-tap-highlight-color:transparent}
.htw-page :is(a,button,summary,select,input):focus-visible{outline:3px solid #344bc1;outline-offset:4px}
.htw-page .site-header{position:sticky;top:0;z-index:100;background:#f7f8faf5;backdrop-filter:blur(16px);border-bottom:1px solid var(--htw-line);padding-top:env(safe-area-inset-top)}
.htw-page .header-inner{min-height:72px;height:72px;padding:0;flex-wrap:nowrap;gap:32px}
.htw-page .brand{gap:11px;text-transform:none;letter-spacing:0;flex:none}
.htw-page .brand-mark{border-radius:11px;width:34px;height:34px;font-size:15px;background:var(--blue)}
.htw-page .header-note{display:block;margin:0;font-size:15px;line-height:1.3;letter-spacing:-.025em!important;text-transform:none;color:var(--ink);font-weight:680}
.htw-page .site-header .htw-primary-nav{display:flex;gap:6px;margin-left:auto;flex-wrap:nowrap}
.htw-page .site-header .htw-primary-nav a{text-transform:none;letter-spacing:0;padding:10px 16px;min-height:44px;border:0;border-radius:8px;font-size:13px;font-weight:550;color:var(--muted);white-space:nowrap}
.htw-page .site-header .htw-primary-nav a[aria-current=page]{background:#e9edf9;color:var(--blue)}
.htw-page #htw-app-menu{min-width:52px;min-height:44px;margin-left:0}
.htw-page .apn-switcher,.htw-page.apn-has-time-limit .apn-switcher{position:relative;inset:auto;margin:0;padding:0;border:0;font-family:inherit;z-index:120}
.htw-page .apn-switcher summary{display:flex;align-items:center;justify-content:center;min-height:44px;margin:0;padding:10px 14px;border:1px solid var(--htw-line);border-radius:9px;background:white;color:var(--muted);box-shadow:none;font-family:inherit;font-size:12px;font-weight:600;line-height:1.4;list-style:none}
.htw-page .apn-switcher nav{top:52px;bottom:auto;right:0;display:block;width:260px;padding:8px;border-radius:14px;background:white;border:1px solid var(--htw-line);box-shadow:0 16px 50px #182b3a1a}
.htw-page .apn-switcher nav a{font-family:inherit;font-size:13px;font-weight:500;line-height:1.5;border:0;letter-spacing:0;text-transform:none;min-height:44px}
.htw-page .apn-time-badge{position:static;inset:auto;max-width:100%;margin:8px 0 0;border:0;border-top:1px solid var(--htw-line);border-radius:0;background:transparent;box-shadow:none;padding:14px 12px;font-family:inherit;font-size:12px;font-weight:500;line-height:1.5}
.htw-page.apn-has-time-limit:not(.apn-game-titan):not(.apn-game-knight) .apn-update-button{bottom:20px}
.htw-app-tabs{display:none}
.htw-page h1{font-family:inherit;font-size:clamp(2.2rem,4.3vw,3.8rem);font-weight:650;line-height:1.08;letter-spacing:-.055em;margin:0 0 16px;max-width:100%}
.htw-page h2,.htw-page h3{font-family:inherit;letter-spacing:-.025em}
.htw-page h2{font-weight:620;font-size:1.8rem}
.htw-kicker{font-size:.66rem;letter-spacing:.14em;font-weight:650;color:var(--muted);margin:0 0 13px}
.htw-hero{padding-block:48px 28px}
.htw-library-hero{padding-bottom:24px}
.htw-library-hero .htw-lead{max-width:640px}
.htw-lead{font-size:1.05rem;line-height:1.7;color:var(--muted);margin-bottom:0;max-width:720px}
.htw-library{padding-bottom:20px}
.htw-browse{padding:0;margin:0;border:0;scroll-margin-top:95px}
.htw-browse-controls{position:relative;display:flex;align-items:flex-start;gap:12px;margin:0}
.htw-search{display:flex!important;align-items:center;flex-direction:row!important;gap:12px!important;position:relative;flex:1;background:white;border:1px solid #d5dce6;border-radius:12px;padding:0 18px;min-width:0}
.htw-ui-icon{width:20px;height:20px;display:inline-block;flex:none;vertical-align:middle}
.htw-search>.htw-ui-icon{color:#7b8794}
.htw-browse-controls .htw-search input{min-height:54px;padding:12px 0;border:0;outline:0!important;border-radius:12px;font-size:15px;font-weight:400;background:transparent;box-shadow:none}
.htw-search:focus-within{border-color:var(--blue);outline:2px solid #344bc124;outline-offset:2px}
.htw-page .htw-filter-panel{position:static;flex:none;margin:0;padding:0;border:0}
.htw-page .htw-filter-panel>summary{display:flex;align-items:center;justify-content:center;gap:9px;min-height:56px;padding:12px 18px;border:1px solid #d5dce6;border-radius:12px;list-style:none;background:white;color:var(--ink);font-size:13px;font-weight:550;white-space:nowrap}
.htw-filter-panel>summary::-webkit-details-marker{display:none}
.htw-filter-panel[open]>summary{border-color:var(--blue);background:#eef1fb;color:var(--blue)}
.htw-filter-badge{display:grid;place-items:center;min-width:21px;height:21px;border-radius:50%;background:var(--blue);color:white;font-size:11px}
.htw-filter-fields{position:absolute;right:0;top:66px;z-index:70;width:min(620px,100%);padding:22px;background:white;border:1px solid var(--htw-line);box-shadow:0 20px 60px #182b3a20;border-radius:16px;display:grid;grid-template-columns:1fr 1fr;gap:18px}
.htw-filter-fields label,.htw-filter-fields #library-grade-line{display:flex;flex-direction:column;align-items:stretch;gap:7px;font-size:12px;font-weight:550;margin:0}
.htw-filter-fields select{width:100%;min-height:46px;border:1px solid #d5dce6;border-radius:8px;font-size:13px;padding:10px 28px 10px 12px;background:#f8f9fb}
.htw-btn{display:inline-flex;align-items:center;justify-content:center;gap:14px;border:1px solid #d5dce6;border-radius:10px;background:white;color:var(--ink);padding:12px 20px;font-size:13px;font-weight:550;min-height:46px;text-decoration:none}
.htw-btn:hover{border-color:#8799ba;background:#f3f5fa}
.htw-filter-fields .htw-reset{align-self:end;font-size:13px;min-height:46px}
.htw-filter-help{grid-column:1/-1;font-size:12px!important;line-height:1.6;color:var(--muted);margin:0}
.htw-results-line{display:flex;align-items:center;justify-content:space-between;gap:18px;padding-block:17px 23px}
.htw-results-line .htw-status{margin:0;font-size:12px;line-height:1.6}
.htw-path-shortcut{font-size:12px;color:var(--blue);white-space:nowrap;text-decoration:none;padding-block:6px;min-height:32px}
.htw-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.htw-card{position:relative;background:white;border:1px solid var(--htw-line);border-radius:14px;box-shadow:0 2px 3px #182b3a02;transition:border-color .15s,box-shadow .15s;min-width:0;scroll-margin-top:94px}
.htw-card:hover{transform:none;border-color:#a9b6cf;box-shadow:0 8px 24px #182b3a08}
.htw-card:has(a:focus-visible){outline:3px solid var(--blue);outline-offset:3px}
.htw-card-copy{padding:24px;min-width:0}
.htw-card-meta{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:20px}
.htw-card-meta .htw-kicker{margin:0;font-size:10px;letter-spacing:.055em;color:var(--muted);text-transform:none;font-weight:500}
.htw-card-copy .htw-card-band{flex:none;align-self:auto;margin:0;background:#f1f3f8;color:#586678;border-radius:5px;padding:3px 7px;font-size:10px;font-weight:500;white-space:nowrap}
.htw-card-copy h3{font-size:1.12rem;line-height:1.4;letter-spacing:-.025em;font-weight:620;margin:0 0 12px;padding-right:15px}
.htw-card-copy h3 a{display:block;margin:0;padding:0;min-height:0;color:var(--ink);font-weight:inherit;text-decoration:none}
.htw-card-copy h3 a::after{content:"";position:absolute;inset:0;border-radius:14px}
.htw-card-arrow{position:absolute;bottom:22px;right:23px;color:#8b98aa;font-size:18px;font-weight:400}
.htw-card-copy [data-topic-preview]{font-size:13px;line-height:1.7;min-height:0;margin:0 0 15px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.htw-card-copy .htw-wonder-label{font-size:10px;font-weight:450;color:#697491;margin:auto 24px 0 0;padding-top:4px}
.htw-pagination{display:flex;align-items:center;justify-content:center;flex-direction:column;gap:12px;padding:28px 0 10px}
.htw-pagination .htw-status{font-size:12px;margin:0}
.htw-empty{text-align:center;background:white;border:1px solid var(--htw-line);border-radius:14px;padding:50px 24px}
.htw-empty h2{font-size:1.3rem}.htw-empty p{font-size:14px;color:var(--muted);margin:0}
.htw-section{padding-block:44px;border-color:var(--htw-line);margin-top:34px}
.htw-collection-shelf{display:grid;grid-template-columns:1fr 1fr;gap:60px;margin-top:42px}
.htw-collection-shelf h2{max-width:340px;font-size:1.75rem;line-height:1.2;margin:0 0 14px}
.htw-collection-shelf p:not(.htw-kicker){font-size:14px;color:var(--muted);max-width:360px;line-height:1.7}
.htw-collection-shelf nav>a{display:grid;grid-template-columns:1fr auto;column-gap:16px;border-bottom:1px solid var(--htw-line);min-height:84px;padding:15px 0;text-decoration:none;font-size:14px;font-weight:550}
.htw-collection-shelf nav>a small{display:block;grid-column:1;font-size:12px;font-weight:400;color:var(--muted);margin-top:5px;line-height:1.6}
.htw-collection-shelf nav>a .htw-ui-icon{grid-column:2;grid-row:1/3;align-self:center;color:var(--blue)}
.htw-page details{border-color:var(--htw-line)}
.htw-page summary{font-size:14px;font-weight:550;color:var(--ink);line-height:1.6}
.htw-collection-shelf details{margin:0;border-top:0}
.htw-wonder-starts{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.htw-wonder-starts a{border:1px solid var(--htw-line);border-radius:8px;padding:10px 14px;font-size:12px;min-height:44px;background:white}
.htw-journeys>h2{font-size:1.65rem;margin-bottom:10px}
.htw-journeys>.htw-body-copy{font-size:14px;color:var(--muted);max-width:620px}
.htw-journeys .htw-status{font-size:12px;margin-bottom:22px}
.htw-journey-card{border-top:1px solid var(--htw-line)}
.htw-journey-card .htw-card-copy>a{font-size:12px;color:var(--blue);position:static;z-index:1}
.htw-journey-card .htw-card-copy>p:not(.htw-kicker){font-size:13px;line-height:1.7;-webkit-line-clamp:3}
.htw-footnotes{max-width:100%;padding-bottom:12px}
.htw-footnotes details{margin:0;font-size:13px;color:var(--muted);line-height:1.7}
.htw-footnotes details h2{font-size:1rem;margin-top:15px}
.htw-domain-nav{gap:8px;margin-top:10px}
.htw-domain-nav a{font-size:12px;font-weight:500;border-radius:8px;padding:11px 14px}
.htw-domain-nav a span{font-size:10px;color:var(--muted);margin-left:5px}
.htw-page .site-footer{background:transparent;border-top:1px solid var(--htw-line);margin:30px 0 0;padding:0}
.htw-page .footer-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:26px 0;font-size:11px;color:#6c7887}
.htw-page .footer-inner nav{display:flex;gap:20px}.htw-page .footer-inner a{font-size:11px;min-height:44px;display:inline-flex;align-items:center;text-decoration:none}
/* Reading pages use the same shell, with a quiet column and immediate continuation. */
.htw-page .htw-reading{max-width:800px;padding-block:32px 40px}
.htw-reader-bar{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:35px;padding-bottom:15px;border-bottom:1px solid var(--htw-line);font-size:12px;color:var(--muted)}
.htw-reader-bar>a{display:inline-flex;align-items:center;min-height:44px;text-decoration:none;color:var(--muted);font-weight:500}
.htw-page .htw-unit-menu{margin:0;padding:0;border:0;position:relative;max-width:70%}
.htw-page .htw-unit-menu>summary{font-size:12px;list-style:none;padding:12px 0;color:var(--muted);text-align:right}
.htw-unit-menu>summary::-webkit-details-marker{display:none}
.htw-unit-menu ul{position:absolute;top:42px;right:0;width:min(360px,calc(100vw - 48px));z-index:30;list-style:none;margin:0;padding:12px;background:white;border:1px solid var(--htw-line);border-radius:12px;box-shadow:0 14px 40px #182b3a18}
.htw-unit-menu li a{display:block;min-height:44px;padding:10px 12px;font-size:13px;text-decoration:none;border-radius:7px}
.htw-unit-menu a[aria-current=page]{color:var(--blue);background:var(--htw-soft)}
.htw-reading-header .htw-kicker{font-size:11px;text-transform:none;letter-spacing:.03em;color:var(--blue);margin-bottom:15px}
.htw-reading-header h1{font-weight:620;font-size:clamp(2rem,4vw,3.3rem);line-height:1.15;letter-spacing:-.045em;margin:0 0 29px}
.htw-reading-prose{font-size:1.1rem;line-height:1.9;color:#293e4e}
.htw-reading-prose p{max-width:68ch;margin-bottom:25px}
.htw-reading-figure{max-width:760px;margin:32px -12px;border:1px solid var(--htw-line);border-radius:16px;background:white;box-shadow:0 4px 24px #182b3a04}
.htw-figure figcaption{padding:16px 22px;font-size:13px!important;line-height:1.8;color:var(--muted);border-color:var(--htw-line)}
.htw-reading-sequence{margin-top:34px;padding-top:22px;border-top:1px solid var(--htw-line)}
.htw-reading-sequence>p{font-size:11px;gap:12px;line-height:1.6;align-items:center}.htw-reading-sequence .htw-status{font-size:11px}
.htw-reading-sequence>p>a{text-decoration:none}
.htw-reading-sequence>div{grid-template-columns:1fr 1fr;gap:14px}
.htw-reading-sequence>div>a{background:white;border:1px solid var(--htw-line);border-radius:12px;padding:20px;color:var(--ink);font-size:14px;font-weight:550;min-height:104px}
.htw-reading-sequence>div>a[data-sequence-next]{background:#eef1fb;border-color:#d6def5}
.htw-reading-sequence>div>a>span{font-size:11px;margin-bottom:8px;color:var(--muted)}
.htw-reading-further{margin-top:30px;font-size:14px;color:var(--muted)}
.htw-reading-further summary{font-size:13px;color:var(--muted)}
.htw-reading-back{margin-top:20px;font-size:13px;font-weight:500;text-decoration:none}
/* Reading paths: four quiet entry cards, with semesters and unit lists on demand. */
.htw-reading-further>section{border-top:1px solid var(--htw-line);padding:24px 0 8px;margin:0;line-height:1.8}
.htw-reading-further>section>h2{font-size:1rem;line-height:1.4;margin:0 0 14px;color:var(--ink);font-weight:600}
.htw-reading-further>section p{margin:0 0 13px}
.htw-reading-further .htw-next-ideas{padding:24px 0 8px}
.htw-source-credits{list-style:none;padding:0;margin:0;font-size:12px;line-height:1.8;color:var(--muted)}
.htw-source-credits li{margin-bottom:9px}
.htw-breadcrumb{font-size:12px;margin-bottom:22px;gap:8px}
.htw-breadcrumb a{text-decoration:none;color:var(--muted)}
.htw-path-grid{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start;gap:20px}
.htw-path-card{border:1px solid var(--htw-line);padding:28px;background:white;border-radius:16px}
.htw-path-card h2{font-size:1.5rem;line-height:1.25;margin-bottom:12px}.htw-path-card>p:not(.htw-kicker){font-size:14px;line-height:1.75;color:var(--muted)}
.htw-path-card details{padding:0;margin-top:22px}
.htw-path-card details>summary{display:flex;justify-content:space-between;gap:16px;font-size:13px;min-height:52px;color:var(--blue);list-style:none}
.htw-path-card details>summary::-webkit-details-marker{display:none}
.htw-path-card details a{display:grid;grid-template-columns:80px 1fr;column-gap:12px;row-gap:5px;text-decoration:none;padding:17px 0;border-top:1px solid var(--htw-line);color:var(--ink)}
.htw-path-card details a>span{font-size:11px;color:var(--muted);grid-row:1/3;padding-top:3px}.htw-path-card details a strong{font-size:13px;font-weight:550}.htw-path-card details a small{font-size:11px;color:var(--muted)}
.htw-path-units{max-width:860px!important;margin-bottom:28px}
.htw-page .htw-path-unit{background:white;border:1px solid var(--htw-line);border-radius:14px;padding:0;margin:12px 0;scroll-margin-top:94px}
.htw-path-unit>summary{display:grid;grid-template-columns:70px 1fr auto;align-items:center;gap:18px;min-height:88px;padding:23px 26px;list-style:none}
.htw-path-unit>summary::-webkit-details-marker{display:none}.htw-path-unit>summary>span{font-size:11px;font-weight:450;color:var(--muted)}.htw-path-unit>summary strong{font-size:16px;line-height:1.45;font-weight:570}.htw-path-unit>summary small{font-size:11px;color:var(--muted);font-weight:450;white-space:nowrap}
.htw-path-unit>div{padding:0 26px 12px 114px}.htw-path-unit>div>p{font-size:13px;line-height:1.8;color:var(--muted);margin:0 0 12px}
.htw-path-unit ol{padding-left:20px;margin:0}.htw-path-unit li{padding:12px 0 12px 8px}.htw-path-unit li:last-child{border:0}.htw-path-unit li>a{font-size:14px;font-weight:500;text-decoration:none;display:inline-block;min-height:30px}.htw-path-unit li>span{font-size:11px}
.htw-path-footer{max-width:860px!important;padding-block:15px 30px;gap:18px}.htw-path-footer>a{font-size:12px;font-weight:500}
.htw-path-start{margin-top:22px;background:var(--blue);border-color:var(--blue);color:white}.htw-path-start:hover{background:#283daa;color:white}
@media(min-width:1500px){.htw-page .shell{width:min(1200px,calc(100% - 96px));max-width:1200px}.htw-page .htw-reading{max-width:800px}}
@media(max-width:960px){.htw-page .shell{width:calc(100% - 48px)}.htw-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.htw-collection-shelf{gap:30px}.htw-page .header-inner{gap:20px}}
@media(max-width:760px){
 .htw-page{padding-bottom:calc(68px + env(safe-area-inset-bottom))}
 .htw-page .shell{width:calc(100% - 36px)}
 .htw-page .header-inner{height:62px;min-height:62px;gap:16px;justify-content:space-between}
 .htw-page .header-note{display:block;font-size:14px}
 .htw-page .site-header .htw-primary-nav{display:none}
 .htw-page #htw-app-menu{margin-left:auto}
 .htw-page .apn-switcher summary{min-height:44px;font-size:11px;padding:10px 12px}
 .htw-page .htw-app-tabs{position:fixed;inset:auto 0 0;z-index:110;display:flex;justify-content:center;gap:16px;border-top:1px solid var(--htw-line);background:#fffffff7;backdrop-filter:blur(16px);padding:7px max(18px,env(safe-area-inset-right)) calc(7px + env(safe-area-inset-bottom)) max(18px,env(safe-area-inset-left))}
 .htw-app-tabs a{display:flex;align-items:center;justify-content:center;gap:9px;min-height:46px;flex:1;max-width:260px;border-radius:9px;color:#6a7787;text-decoration:none;font-size:12px;font-weight:550}
 .htw-app-tabs a[aria-current=page]{background:#eef1fb;color:var(--blue)}
 .htw-app-tabs .htw-ui-icon{width:19px;height:19px}
 .htw-page.apn-has-time-limit:not(.apn-game-titan):not(.apn-game-knight) .apn-update-button{bottom:calc(80px + env(safe-area-inset-bottom))}
 .htw-page h1{font-size:clamp(2rem,7.4vw,3rem);letter-spacing:-.05em}
 .htw-hero{padding-block:30px 22px}.htw-kicker{font-size:10px;margin-bottom:10px}
 .htw-lead{font-size:14px;line-height:1.75}
 .htw-library-hero .htw-lead{max-width:480px}
 .htw-search{padding-inline:13px}.htw-browse-controls .htw-search input{font-size:16px;min-height:50px}
 .htw-page .htw-filter-panel>summary{min-height:52px;font-size:12px;padding:12px}
 .htw-filter-panel>summary>.htw-ui-icon{width:17px;height:17px}
 .htw-filter-fields{width:min(500px,100%);padding:18px;gap:16px;top:62px}
 .htw-results-line{align-items:flex-start;padding-block:15px 19px;gap:12px}
 .htw-results-line .htw-status{font-size:11px}.htw-path-shortcut{font-size:11px;min-height:0;padding:0;white-space:normal;text-align:right;max-width:115px}
 .htw-card-copy{padding:20px}.htw-card-meta{margin-bottom:17px}.htw-card-copy h3{font-size:1.04rem}.htw-card-copy [data-topic-preview]{font-size:12px;-webkit-line-clamp:3}
 .htw-grid{gap:12px}.htw-section{padding-block:30px;margin-top:25px}
 .htw-collection-shelf{grid-template-columns:1fr;gap:8px;margin-top:26px}.htw-collection-shelf h2{max-width:none;font-size:1.6rem}
 .htw-collection-shelf p:not(.htw-kicker){max-width:100%;font-size:13px}
 .htw-page .footer-inner{font-size:10px;gap:12px;flex-wrap:wrap}.htw-page .footer-inner nav{gap:18px}
 .htw-page .htw-reading{padding-block:16px 20px}.htw-reader-bar{margin-bottom:25px;padding-bottom:10px;gap:12px}
 .htw-reader-bar>a,.htw-page .htw-unit-menu>summary{font-size:11px}.htw-page .htw-unit-menu{max-width:73%}
 .htw-reading-header h1{font-size:clamp(1.85rem,6.9vw,2.6rem);margin-bottom:25px}
 .htw-reading-header .htw-kicker{font-size:10px}.htw-reading-prose{font-size:1rem;line-height:1.85}
 .htw-reading[data-reading-grade=k2] .htw-reading-prose{font-size:1.12rem}
 .htw-reading-figure{margin:25px -6px;border-radius:11px}.htw-figure figcaption{font-size:12px!important;padding:14px 16px}
 .htw-reading-sequence>div{grid-template-columns:1fr 1fr;gap:10px}.htw-reading-sequence>div>a{padding:15px;font-size:12px;min-height:100px}.htw-reading-sequence>div>a>span{font-size:10px}
 .htw-path-grid{grid-template-columns:1fr;gap:15px}.htw-path-card{padding:23px}.htw-path-card h2{font-size:1.4rem}
 .htw-path-unit>summary{grid-template-columns:48px 1fr;gap:12px;min-height:84px;padding:20px}.htw-path-unit>summary strong{font-size:14px}.htw-path-unit>summary small{grid-column:2;margin-top:-6px}.htw-path-unit>div{padding:0 20px 12px 80px}
 .htw-page .htw-unit-menu ul{width:min(330px,calc(100vw - 36px))}
}
@media(max-width:480px){.htw-grid{grid-template-columns:1fr}.htw-card-meta{margin-bottom:12px}.htw-card-copy{padding:20px}.htw-card-copy h3{font-size:1.08rem;max-width:95%}.htw-card-copy [data-topic-preview]{font-size:13px;-webkit-line-clamp:2}.htw-card-copy .htw-wonder-label{padding-top:0;font-size:10px}.htw-filter-fields{grid-template-columns:1fr}.htw-filter-help{grid-column:auto}.htw-path-unit>div{padding-left:24px}.htw-browse-controls{gap:9px}.htw-page .htw-filter-panel>summary{font-size:11px;gap:6px}.htw-filter-panel>summary>.htw-ui-icon{display:none}.htw-search>.htw-ui-icon{width:17px}.htw-page .htw-library-hero h1{font-size:2.05rem}}
@media(prefers-reduced-motion:reduce){.htw-page *{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
@media print{.htw-page .site-header,.htw-app-tabs,.htw-page .site-footer,.htw-reader-bar,.htw-reading-sequence,.htw-reading-back{display:none!important}.htw-page{padding:0;background:white}.htw-page .htw-reading{width:100%;max-width:100%;padding:0}.htw-reading-figure{break-inside:avoid;box-shadow:none;margin-inline:0}}
/* Connected routes sit inside Reading Paths; the primary navigation stays compact. */
.htw-path-connections{margin:22px 0 0;font-size:14px}.htw-path-connections a,.htw-path-theme-link{display:inline-flex;align-items:center;min-height:44px;text-decoration:none;color:var(--blue)}
.htw-path-theme-link{font-size:13px;margin-top:8px}
.htw-theme-grades{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-bottom:32px}
.htw-theme-grade{background:white;border:1px solid var(--htw-line);border-radius:16px;padding:30px;scroll-margin-top:100px}
.htw-theme-grade h2{font-size:1.4rem;line-height:1.35;letter-spacing:-.025em;margin:0 0 14px;max-width:440px}
.htw-theme-grade>p:not(.htw-kicker){font-size:14px;line-height:1.8;color:var(--muted);margin:0 0 22px}
.htw-theme-grade nav>a{display:grid;grid-template-columns:24px minmax(0,1fr) 18px;gap:14px;align-items:center;min-height:88px;border-top:1px solid var(--htw-line);text-decoration:none;padding:15px 0}
.htw-theme-number{font-size:11px;color:var(--blue);font-variant-numeric:tabular-nums}.htw-theme-grade strong{font-size:14px;line-height:1.5;font-weight:560}.htw-theme-grade small{display:block;font-size:12px;line-height:1.65;color:var(--muted);margin-top:4px}
.htw-theme-note{max-width:800px!important;margin-block:25px 50px;font-size:14px;line-height:1.8;color:var(--muted)}.htw-theme-note>a{display:inline-flex;align-items:center;min-height:44px;color:var(--blue)}
.htw-theme-hero,.htw-theme-route{max-width:820px!important}.htw-theme-stops{list-style:none;padding:0;margin:0}
.htw-theme-stops>li{display:grid;grid-template-columns:36px minmax(0,1fr);gap:18px;padding:28px 0;border-top:1px solid var(--htw-line);scroll-margin-top:100px}
.htw-theme-step{display:grid;place-items:center;width:32px;height:32px;background:#e9edf9;border-radius:50%;color:var(--blue);font-size:12px;margin-top:2px}
.htw-theme-stops .htw-kicker{font-size:10px;margin-bottom:9px}.htw-theme-stops h2{font-size:1.25rem;line-height:1.5;letter-spacing:-.02em;margin:0 0 10px}.htw-theme-stops h2 a{text-decoration:none}.htw-theme-stops h2 a:hover{text-decoration:underline;text-underline-offset:4px}
.htw-theme-stops li>div>p:not(.htw-kicker){font-size:15px;line-height:1.8;color:var(--muted);margin:0}
.htw-theme-more{margin-top:30px;border-top:1px solid var(--htw-line);padding-top:28px}.htw-theme-more h2{font-size:1.1rem;margin-bottom:14px}.htw-theme-more a{display:flex;justify-content:space-between;align-items:center;gap:15px;min-height:52px;text-decoration:none;border-bottom:1px solid var(--htw-line);font-size:14px}
.htw-theme-backlink{font-size:13px;line-height:1.8;padding-top:12px}.htw-theme-route>.htw-reading-back{display:inline-flex;align-items:center;min-height:44px;margin-block:28px 38px}
@media(max-width:760px){.htw-theme-grades{grid-template-columns:1fr;gap:18px}.htw-theme-grade{padding:23px}.htw-theme-grade h2{font-size:1.3rem}.htw-theme-grade nav>a{min-height:82px;gap:10px}.htw-theme-stops>li{grid-template-columns:30px minmax(0,1fr);gap:13px;padding:23px 0}.htw-theme-step{width:28px;height:28px}.htw-theme-stops h2{font-size:1.13rem}.htw-theme-stops li>div>p:not(.htw-kicker){font-size:14px}.htw-theme-note{font-size:13px}}

.htw-experience-description{max-width:65ch;color:var(--muted,#536678);line-height:1.6;margin:.25rem 0 1rem}.htw-collection-shelf nav[aria-label="Everyday experiences"]{margin-bottom:1.5rem}