:root{color-scheme:light;--paper:#fff;--ink:#172f2d;--muted:#4f6764;--soft:#edf6f2;--accent:#09695c;--line:#c8d9d3;--field:#f5f8f6}
[data-theme=dark]{color-scheme:dark;--paper:#12201e;--ink:#edf5f0;--muted:#b6cec5;--soft:#1c322d;--accent:#92d9bd;--line:#456057;--field:#21362f}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.75 system-ui,-apple-system,"Segoe UI",sans-serif}a{color:var(--accent);text-underline-offset:4px;text-decoration-thickness:1px}a:hover{text-decoration-thickness:2px}img{display:block;max-width:100%;height:auto}button,input,textarea,select{font:inherit}button,a,summary,input,select{touch-action:manipulation}button,input,textarea,select{color:var(--ink)}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:4px}button{cursor:pointer}p{margin:0 0 1.2em}h1,h2,h3{line-height:1.17;letter-spacing:-.035em;margin:0 0 .7em;font-weight:650}h1{font-size:clamp(2.4rem,5.1vw,4.7rem);max-width:850px}h2{font-size:clamp(1.6rem,2.9vw,2.3rem)}h3{font-size:1.2rem}li{padding-left:.25em;margin-bottom:.85em}ul,ol{padding-left:1.4em}strong{font-weight:650}code{font-size:.9em;overflow-wrap:anywhere}.skip-link{position:absolute;left:20px;top:-100px;padding:12px;background:var(--paper);z-index:20}.skip-link:focus{top:10px}.site-header{background:var(--paper)}.header-inner{max-width:1330px;margin:auto;padding:22px 32px;display:flex;gap:25px;align-items:center}.brand{display:flex;align-items:center;gap:9px;font-size:14px;line-height:1.2;text-decoration:none;color:var(--ink);white-space:nowrap}.brand small{display:none}.brand span:has(img){display:block;background:#16332d;padding:7px 10px;border-radius:7px}.official-logo{width:88px;height:auto}.primary-nav{display:flex;gap:18px;margin-left:auto;align-items:center}.primary-nav a{font-size:13px;min-height:44px;display:flex;align-items:center;text-decoration:none;color:var(--muted);white-space:nowrap}.primary-nav a[aria-current=page]{color:var(--accent);font-weight:700}.theme-toggle,.menu-toggle{border:0;background:var(--soft);border-radius:8px;min-height:44px;min-width:44px;padding:8px 10px;line-height:1}.theme-label{display:none}.menu-toggle{display:none}main{max-width:1160px;padding:0 32px;margin:auto}.page-intro{padding:74px 0 64px}.site-context{font-size:14px;font-weight:700;color:var(--accent);margin-bottom:20px}.intro-text{max-width:740px;font-size:20px;line-height:1.6;color:var(--muted)}.refinement-search{max-width:680px;margin:32px 0 0}.refinement-search label{display:block;font-size:14px;margin-bottom:8px;font-weight:650}.refinement-search>div,.input-row{display:flex;gap:10px}input[type=search],input[type=url],textarea,select{width:100%;min-width:0;border:1px solid var(--line);background:var(--field);border-radius:9px;padding:13px 15px;min-height:50px}input::placeholder,textarea::placeholder{color:var(--muted);opacity:1}.refinement-search button,.input-row button{flex-shrink:0;background:var(--accent);color:var(--paper);border:0;border-radius:9px;padding:12px 22px;font-weight:650;min-height:50px}.guide-section{padding:50px 0;max-width:780px}.home-page>.guide-section{max-width:none}.home-page>.guide-section>p,.home-page>.guide-section>ol,.home-page>.guide-section>ul{max-width:780px}.home-page #spreadsheet{padding-top:12px}.category-list{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px 30px;margin-top:28px}.category-link{display:flex;gap:14px;align-items:center;min-height:74px;text-decoration:none;color:var(--ink);font-size:15px;font-weight:600}.category-link img{width:68px;height:74px;object-fit:cover;border-radius:7px;background:var(--field)}.category-link:hover span{text-decoration:underline}.home-page #start-here{background:var(--soft);border-radius:18px;padding:42px 45px;margin:52px 0 20px}.home-page #start-here ol{columns:2;column-gap:50px;list-style:none;padding:0;max-width:none}.home-page #start-here li{break-inside:avoid;margin:0 0 28px;padding:0}.home-page #start-here strong{display:block;font-size:19px;margin-bottom:8px}.home-page #before-paying{padding-bottom:30px}.tool-area{background:var(--field);padding:28px;border-radius:12px;max-width:880px}#link-reader label{display:block;font-weight:650;margin-bottom:9px}#link-reader p,#link-output>p{font-size:14px;color:var(--muted);margin:14px 0 0}#link-output dl{display:grid;grid-template-columns:100px 1fr;gap:8px;margin-bottom:0}#link-output dt{color:var(--muted)}#link-output dd{margin:0;overflow-wrap:anywhere}.article-page{max-width:890px}.article-page .page-intro{padding-bottom:30px}.article-page .guide-section{padding:33px 0}.article-page h1{font-size:clamp(2.3rem,4.3vw,3.6rem)}.article-page h2{font-size:1.8rem}.answers dt,.format-list dt{font-weight:700;margin-top:25px}.answers dd,.format-list dd{margin:8px 0 24px;color:var(--muted)}.source-list{padding:25px 0 60px;font-size:14px;color:var(--muted)}summary{cursor:pointer;min-height:44px;padding:10px 0;font-weight:650;color:var(--ink)}.source-list ul{columns:2;column-gap:45px}.source-list li{break-inside:avoid}.source-list a{display:inline-flex;align-items:center;min-height:44px}.site-footer{background:var(--soft);margin-top:65px}.footer-inner{max-width:1160px;margin:auto;padding:45px 32px;display:grid;grid-template-columns:1fr 1fr;gap:30px 60px;font-size:14px}.footer-inner>div p{max-width:390px;color:var(--muted);margin-top:8px}.footer-inner>nav{display:flex;align-items:flex-start;flex-direction:column}.footer-inner a{min-height:44px;display:inline-flex;align-items:center}.guide-sitemap{grid-column:1/-1;max-width:800px}.guide-sitemap ul{display:grid;grid-template-columns:1fr 1fr;gap:0 25px}.guide-sitemap li{margin:0}.is-error{color:var(--ink)}[hidden]{display:none!important}
@media(max-width:1120px){.header-inner{flex-wrap:wrap;gap:16px}.menu-toggle{display:block;margin-left:auto}.primary-nav{display:none;order:5;width:100%;margin:0;flex-wrap:wrap}.primary-nav.is-open{display:flex}.category-list{grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.category-link{flex-direction:column;align-items:flex-start;gap:8px}.category-link img{width:100%;height:auto;aspect-ratio:1;object-fit:cover}}
@media(max-width:650px){body{font-size:16px}.header-inner{padding:16px 20px;gap:10px}.brand{font-size:12px}.brand img{width:76px}.theme-toggle,.menu-toggle{font-size:14px}main{padding:0 22px}.page-intro{padding:44px 0 34px}.intro-text{font-size:18px}.refinement-search>div,.input-row{flex-direction:column}.refinement-search button,.input-row button{width:100%}.guide-section{padding:32px 0}.category-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.category-link{font-size:15px}.category-link img{aspect-ratio:1.08}.home-page #start-here{padding:26px 24px;margin:34px -5px 10px;border-radius:13px}.home-page #start-here ol{columns:1}.home-page #start-here li:last-child{margin-bottom:0}.home-page #start-here strong{font-size:18px}.tool-area{padding:20px}.article-page .page-intro{padding-bottom:16px}.source-list ul{columns:1}.footer-inner{padding:32px 22px;display:block}.footer-inner>nav{margin-bottom:24px}.guide-sitemap ul{display:block}.primary-nav{gap:3px 21px}.primary-nav a{font-size:14px}.article-page .guide-section{padding:28px 0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media(max-width:650px){.category-list{gap:17px 15px}.category-link{flex-direction:row;align-items:center;gap:9px;font-size:13px;line-height:1.3;min-height:65px}.category-link img{width:55px;height:62px;flex-shrink:0;aspect-ratio:auto}.category-link span{min-width:0}}

.h1-brand{display:block;font:600 12px/1.5 Arial,sans-serif;letter-spacing:.06em;margin:0 0 23px;color:var(--muted)}.h1-message{display:block}

/* Round 5 visible guide modules */
.home-tagline{font-size:24px;line-height:1.35;color:var(--accent);margin:0 0 26px}.guide-jump{padding:20px 0 28px;font-size:14px}.guide-jump strong{display:block;margin-bottom:10px}.guide-jump>div{display:flex;flex-wrap:wrap;gap:8px 24px}.guide-jump a{display:inline-flex;min-height:40px;align-items:center}.core-guide{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:12px 58px;margin:34px 0}.core-guide>.guide-section{max-width:none;padding:30px 0}.core-guide h2{font-size:30px}.core-guide p,.core-guide ol{font-size:17px}.core-guide #start-here{margin:0;padding:28px 30px;align-self:start}.core-guide #start-here ol{columns:1}.core-guide #start-here li{margin-bottom:18px}.core-guide #start-here strong{display:inline;font-size:inherit}.topic-next{margin:18px 0 0}.reading-group{padding:48px 0}.reading-group>h2{font-size:31px;margin-bottom:34px}.topic-columns{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:30px 62px}.reading-topic h3{font-size:22px;margin-bottom:13px}.reading-topic p{margin-bottom:14px}.reading-topic{min-width:0}.reading-topic .topic-next{font-size:15px}.home-page #section-03{padding-bottom:34px}.home-page #before-paying{padding:0}.home-page #get-help{padding:0}.home-page #spreadsheet>.topic-next{font-size:14px}.reading-group#guide-news{background:var(--soft);padding:35px 32px;border-radius:12px;margin:30px 0}.guide-jump a:focus-visible{outline-offset:2px}
@media(max-width:650px){.home-tagline{font-size:20px;margin-bottom:20px}.guide-jump{padding-top:3px}.guide-jump>div{display:grid;grid-template-columns:1fr 1fr;gap:4px 20px}.guide-jump a{line-height:1.45}.core-guide{grid-template-columns:1fr;gap:0;margin-top:20px}.core-guide h2{font-size:28px}.core-guide>.guide-section{padding:28px 0}.core-guide #start-here{margin:18px 0;padding:26px 24px}.topic-columns{grid-template-columns:1fr;gap:27px}.reading-group{padding:35px 0}.reading-group>h2{font-size:29px;margin-bottom:28px}.reading-topic h3{font-size:23px}.reading-group#guide-news{padding:28px 23px;margin-left:-5px;margin-right:-5px}}

.home-page h1>.home-tagline{display:block;margin:22px 0 0;font-weight:400;letter-spacing:0}

/* Round 6: a shopping opening and three coherent guide areas. */
.link-overview .page-intro{padding:60px 0 40px}.link-overview .intro-text{max-width:770px}.link-overview #spreadsheet{padding-bottom:20px}.desk-roles{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:68px;margin:55px 0 64px;align-items:start}.desk-roles h2{font-size:28px;max-width:470px}.desk-roles p{margin:0 0 13px}.desk-roles a,.desk-journey>section>a{display:inline-flex;align-items:center;min-height:44px;font-size:15px}.desk-collection{padding-top:25px}.desk-collection>section+section,.desk-agent>section+section{margin-top:34px}.desk-roles #why-spreadsheet h2,.desk-roles #why-hoobuy h2{font-size:23px}.desk-agent{background:var(--soft);padding:30px 32px;border-radius:14px}.desk-journey{display:grid;grid-template-columns:.95fr 1.2fr;gap:72px;padding:42px 44px;background:var(--soft);border-radius:16px;margin:0 0 72px}.desk-journey h2{font-size:28px}.desk-journey ol{padding-left:1.3em;margin:20px 0 12px}.desk-journey li{margin-bottom:14px;padding-left:3px}.link-overview .desk-journey #start-here{padding:0;margin:0;background:none;border-radius:0}.link-overview .desk-journey #start-here ol{columns:1;list-style:decimal;padding-left:1.3em}.link-overview .desk-journey #start-here li{padding-left:3px;margin:0 0 14px}.link-overview .desk-journey #start-here strong{display:inline;font-size:inherit;margin:0}.desk-resources{margin:0 0 48px}.desk-resources>h2{font-size:33px}.desk-resources>p{max-width:760px;color:var(--muted)}.desk-destinations{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:42px;margin:35px 0}.desk-destinations h3{font-size:23px;line-height:1.25}.desk-destinations h3 a{color:var(--ink)}.desk-destinations p{font-size:16px}.desk-topic-links{display:flex;flex-direction:column;align-items:flex-start;margin-bottom:0}.desk-topic-links a{display:inline-flex;align-items:center;min-height:44px;font-size:14px}.desk-tool-entry{display:flex;align-items:center;justify-content:space-between;gap:40px;background:var(--field);padding:25px 28px;border-radius:11px}.desk-tool-entry strong{font-size:20px}.desk-tool-entry p{font-size:15px;max-width:570px;margin:8px 0 0;color:var(--muted)}.desk-tool-entry>a{flex-shrink:0;display:flex;align-items:center;min-height:44px;font-size:16px}.desk-resources .desk-notes{font-size:14px;margin:27px 0 0}.page-contents{margin:15px 0 28px;padding:23px 25px;background:var(--soft);border-radius:11px}.page-contents>strong{display:block;margin-bottom:10px;font-size:14px}.page-contents>div{display:grid;grid-template-columns:1fr 1fr;gap:0 22px}.page-contents a{display:flex;align-items:center;min-height:44px;font-size:14px;line-height:1.5}.guide-connections{font-size:15px;color:var(--muted);margin-bottom:28px}.link-overview [id]{scroll-margin-top:30px}
@media(max-width:850px){.desk-roles{gap:34px}.desk-journey{gap:35px;padding:30px}.desk-destinations{gap:24px}.desk-tool-entry{gap:24px}.desk-tool-entry>a{flex-shrink:1}}
@media(max-width:650px){.link-overview .page-intro{padding:38px 0 28px}.desk-roles{display:block;margin:30px 0 38px}.desk-collection{padding:0}.desk-collection>section+section{margin-top:27px}.desk-agent{padding:28px 24px;margin:28px -4px 0}.desk-roles h2,.desk-journey h2{font-size:27px}.desk-roles #why-spreadsheet h2,.desk-roles #why-hoobuy h2{font-size:23px}.desk-journey{display:block;margin:0 -4px 42px;padding:28px 24px;border-radius:13px}.link-overview .desk-journey #start-here{margin-top:32px}.desk-destinations{display:block;margin:27px 0}.desk-destinations article+article{margin-top:32px}.desk-destinations h3{font-size:23px;margin-bottom:12px}.desk-destinations p{margin-bottom:12px}.desk-resources>h2{font-size:29px}.desk-tool-entry{display:block;padding:23px 22px}.desk-tool-entry>a{margin-top:16px}.page-contents{padding:20px}.page-contents>div{grid-template-columns:1fr}.desk-resources .desk-notes{margin-top:23px}}
@media(max-width:360px){.header-inner{padding:16px 12px;gap:8px}.brand{font-size:11px}.brand img{width:64px}}

/* Keep the homepage resource area at destination level. */
.desk-tool-entry{display:block;background:none;padding:0;border-radius:0;font-size:16px;margin:28px 0 0}.desk-tool-entry>a{display:inline-flex;min-height:44px;margin:0 0 0 6px;align-items:center}

/* Round6 independent resource destinations: touch-sized title links. */
.desk-destinations h3 a{display:inline-flex;align-items:center;min-height:44px}

/* Round7: photographs explain the physical decisions; screenshots explain the controls. */
.desk-photo{margin:24px 0 0}.desk-photo img{width:100%;height:auto;border-radius:8px}.desk-photo figcaption{font-size:13px;line-height:1.55;color:var(--muted);margin-top:11px;max-width:540px}.desk-collection .choice-photo{max-width:420px}.desk-journey{align-items:start}.desk-journey .inspection-photo{margin-top:23px}.desk-journey .inspection-photo figcaption{font-size:12px}.desk-resource-layout{display:grid;grid-template-columns:1fr 1.08fr;gap:62px;align-items:center;margin:32px 0}.desk-resource-layout .desk-photo{margin:0}.desk-resource-layout .desk-destinations{display:block;margin:0}.desk-resource-layout .desk-destinations article+article{margin-top:25px}.desk-resource-layout .desk-destinations h3{margin-bottom:9px}.desk-resource-layout .desk-destinations p{margin-bottom:0}.official-shot{margin:26px 0 4px}.official-image{display:block;background:#fff;border-radius:9px;overflow:hidden}.official-image img{width:100%;height:auto}.official-shot figcaption{font-size:14px;line-height:1.7;color:var(--muted);margin-top:13px}.official-shot figcaption a{display:inline-flex;align-items:center;min-height:44px;margin-left:5px}
@media(max-width:850px){.desk-resource-layout{gap:34px}}
.desk-journey>.inspection-photo{grid-column:1/-1;margin-top:0}.desk-journey>.inspection-photo img{aspect-ratio:3.4;object-fit:cover;object-position:50% 46%}.desk-journey>.inspection-photo figcaption{max-width:none}
@media(max-width:650px){.desk-collection .choice-photo{max-width:none;margin-top:19px}.desk-journey .inspection-photo{margin-top:18px}.desk-resource-layout{display:block;margin:24px 0}.desk-resource-layout .desk-photo{margin-bottom:27px}.desk-photo figcaption{font-size:12px}.desk-photo img{border-radius:7px}.desk-resource-layout .desk-destinations article+article{margin-top:28px}.official-shot{margin:22px 0 2px}.official-shot figcaption{font-size:13px}.official-shot figcaption a{margin-left:0}}
@media(max-width:650px){.desk-journey>.inspection-photo img{aspect-ratio:1.5;object-fit:contain}}
.desk-journey{row-gap:27px}.video-reference{display:grid;grid-template-columns:1fr 1.1fr;gap:27px;align-items:center;margin:35px 0 24px}.video-reference h2{font-size:24px}.video-poster-link img{width:100%;height:auto;border-radius:8px}.video-guide-link{display:inline-flex;align-items:center;min-height:44px;font-size:16px}.video-reference p{font-size:14px;color:var(--muted);margin:5px 0 0}
@media(max-width:650px){.video-reference{display:block;margin:28px 0}.video-reference>div{margin-top:19px}.video-reference h2{font-size:23px}}
@media(min-width:851px){.desk-roles{grid-template-columns:1.12fr .9fr}.desk-collection .choice-photo{max-width:360px}}