/* Máy Tính Online — single CSS owner, component-first; no page-scoped overrides */
:root{--brand:#1269e8;--brand-dark:#0b4fab;--ink:#10213d;--muted:#63738d;--bg:#f4f8fd;--surface:#fff;--border:#e2eaf5;--blue-tint:#eaf3ff;--soft:#f1f5fa;--radius:14px;--radius-sm:10px;--icon-stroke:1.8;--interactive-ring:0 0 0 3px rgba(18,105,232,.12);--shadow:0 4px 18px rgba(19,50,94,.035);--shell:1200px;--reading:760px;--space:16px;--focus:#f59e0b;--tap:44px;--font:Segoe UI,Arial,sans-serif;--hover-bg:#f4f9ff;--field-bg:#f8fbff;--brand-hover:#0756bd;--action-ink:#1269e8;--benefit-subtext:#465a76;--tint-mint-bg:#ebfaf4;--tint-mint-ink:#087d56;--tint-blue-bg:#eaf4ff;--tint-blue-ink:#1269e8;--tint-violet-bg:#f4eefe;--tint-violet-ink:#7f3fce;--tint-rose-bg:#fff0f3;--tint-rose-ink:#c52c53;--tint-amber-bg:#fff8e9;--tint-amber-ink:#875700}
*,*::before,*::after{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:15px;line-height:1.55}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.65}[hidden]{display:none!important}button,input,summary{min-height:var(--tap)}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.28}h1{font-size:clamp(25px,2.2vw,32px)}h2{font-size:21px}h3{font-size:16px}p{color:var(--muted)}.shell{max-width:calc(var(--shell) + 40px);padding-inline:20px;margin-inline:auto}.main-shell{padding-block:24px 48px}.surface,.content-section{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.skip-link{position:absolute;top:-100px;left:8px;padding:12px;background:white;z-index:100}.skip-link:focus{top:8px}.ui-icon{display:inline-block;flex:none;vertical-align:middle}.site-header{background:#234c87;color:#fff;position:relative;z-index:20}.header-inner{display:flex;align-items:center;min-height:72px;gap:28px}.brand{min-width:0;display:inline-flex;gap:10px;align-items:center;flex-shrink:0}.brand-mark{display:grid;place-items:center;width:39px;height:44px;background:var(--brand);border:2px solid #93c5fd;border-radius:9px;color:white}.brand strong{display:block;font-size:20px;line-height:1.15}.brand small{display:block;font-size:10px;opacity:.85;margin-top:4px}.primary-nav{display:flex;align-items:center;gap:22px;margin-left:auto}.primary-nav a{font-size:13px;white-space:nowrap;min-height:44px;display:inline-flex;align-items:center;opacity:.94}.primary-nav a:hover,.primary-nav a:focus-visible{opacity:1;text-decoration:underline;text-underline-offset:7px}.primary-nav-list{display:flex;gap:22px;align-items:center;list-style:none;padding:0;margin:0}.primary-nav-list li{margin:0;padding:0}.primary-nav-list .current-menu-item>a,.primary-nav-list .current-menu-ancestor>a{font-weight:700;text-decoration:underline;text-underline-offset:7px}.header-actions{min-width:0;display:flex;gap:8px;align-items:center}.icon-button{flex:none;display:grid;place-items:center;color:inherit;background:rgba(255,255,255,.09);border:0;border-radius:10px;width:44px;height:44px}.mobile-menu{display:none}
.calculator-layout{display:grid;grid-template-columns:244px minmax(0,1fr) 280px;gap:12px;align-items:stretch}.sidebar{padding:8px}.sidebar-heading{padding:11px 12px 8px;font-size:13px;font-weight:800}.sidebar-list{display:grid;gap:5px}.side-item{display:flex;align-items:center;gap:12px;padding:11px 10px;min-height:68px;border-radius:10px}.side-item:hover,.side-item.active{background:var(--blue-tint)}.side-item.active .side-icon{background:var(--brand);color:white}.side-icon{width:38px;height:40px;display:grid;place-items:center;flex:none;border-radius:9px;color:#145ba6}.side-item strong,.side-item small{display:block}.side-item strong{font-size:13px}.side-item small{font-size:11px;color:var(--muted)}.calculator-panel{min-width:0;padding:18px 20px 20px}.section-heading{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}.section-heading h1{margin-bottom:3px}.section-heading p{font-size:13px;margin-bottom:17px}.status-pill{display:inline-flex;gap:5px;align-items:center;color:var(--brand-dark);background:var(--blue-tint);font-size:11px;font-weight:700;border-radius:999px;padding:6px 9px;white-space:nowrap}.calc-display{background:linear-gradient(130deg,#edf5ff,#e5f0ff);border-radius:12px;min-height:116px;display:flex;align-items:flex-end;flex-direction:column;justify-content:center;padding:17px 22px;margin-bottom:12px;overflow:hidden}.calc-expression{font-size:18px;color:#7b8ba8;min-height:28px;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.calc-result{font-size:39px;line-height:1.25;font-weight:750;max-width:100%;overflow:hidden;text-overflow:ellipsis}.calc-keys{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:9px}.key{border:0;background:#edf1f6;border-radius:11px;min-height:64px;font-size:26px;font-weight:650;color:#0b1834;transition:background .15s,transform .15s}.key:active{transform:scale(.97)}.key:hover{background:#e2e8f0}.key.operator{background:#daeaff;color:#0961db}.key.operator:hover{background:#c8defe}.key.danger{background:#ffe0e4;color:#dc3232}.key.equals{background:#1676f5;color:#fff}.key.equals:hover{background:#075fd8}.key-zero{grid-column:span 2}.helper-note{font-size:11px;margin:12px 0 0;color:var(--muted)}.aside-stack{min-width:0;display:grid;grid-template-rows:minmax(0,1fr) auto;gap:12px}.aside-card{padding:16px 16px 14px;min-width:0}.aside-title{display:flex;align-items:center;justify-content:space-between;gap:7px;border-bottom:1px solid var(--border);padding-bottom:10px}.aside-title h2{font-size:15px;display:flex;align-items:center;gap:8px;margin:0}.text-button{border:0;background:none;color:var(--brand);font-size:11px;padding:5px}.history-items{max-height:336px;overflow:auto;min-width:0}.empty-state{display:flex;align-items:center;justify-content:center;flex-direction:column;text-align:center;gap:7px;min-height:225px;color:#8b9fbb}.empty-state strong{color:var(--ink);font-size:13px}.empty-state span{font-size:11px}.history-entry{display:flex;justify-content:space-between;gap:6px;align-items:center;border-bottom:1px solid var(--border);padding:9px 0;font-size:12px}.history-entry strong{font-size:14px}.history-entry button{border:0;background:transparent;color:var(--action-ink);display:grid;place-items:center;width:44px;height:44px;flex:none;border-radius:8px}.history-entry button:hover{background:var(--blue-tint)}.tips{list-style:none;counter-reset:tips;padding:0;margin:14px 0 0;display:grid;gap:10px}.tips li{counter-increment:tips;display:flex;gap:10px;align-items:flex-start;color:var(--muted);font-size:12px}.tips li::before{content:counter(tips);background:#e5f0ff;color:var(--brand-dark);min-width:24px;height:24px;display:grid;place-items:center;border-radius:50%;font-weight:700}
.benefits{margin:14px 0 20px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.benefit{border-radius:12px;padding:14px;display:flex;gap:12px;align-items:center;min-height:76px}.benefit>svg{width:34px;height:34px}.benefit strong,.benefit small{display:block}.benefit strong{font-size:13px}.benefit small{font-size:11px;color:var(--muted)}.tint-mint{background:var(--tint-mint-bg);color:var(--tint-mint-ink)}.tint-blue{background:var(--tint-blue-bg);color:var(--tint-blue-ink)}.tint-violet{background:var(--tint-violet-bg);color:var(--tint-violet-ink)}.tint-rose{background:var(--tint-rose-bg);color:var(--tint-rose-ink)}.tint-amber{background:var(--tint-amber-bg);color:var(--tint-amber-ink)}.content-section{padding:18px;margin-top:14px}.content-heading{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;margin-bottom:16px}.content-heading h2{display:flex;align-items:center;gap:10px;margin-bottom:3px;font-size:20px}.content-heading h2 svg{color:var(--brand)}.content-heading p{font-size:12px;margin:0}.section-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:12px;font-weight:700;white-space:nowrap;min-height:40px}.model-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.model-grid--catalog{grid-template-columns:repeat(4,minmax(0,1fr))}.model-card{overflow-wrap:anywhere;min-height:0;border:1px solid var(--border);border-radius:12px;padding:14px;display:flex;flex-direction:column;gap:14px;min-width:0;align-items:stretch;background:var(--surface);transition:border-color .15s ease,box-shadow .15s ease}.model-card:hover,.model-card:focus-within{border-color:var(--brand);box-shadow:0 0 0 2px var(--blue-tint)}.model-details{display:flex;flex-direction:column;align-items:stretch;gap:10px;flex:1;min-width:0}.model-title{display:flex;justify-content:space-between;align-items:start;flex-wrap:wrap;gap:6px}.model-title h3{margin:0;font-size:16px;line-height:1.35}.model-details p{margin:0;font-size:12px;line-height:1.6;color:var(--muted);flex:1}.model-availability{border-radius:100px;background:var(--blue-tint);color:var(--action-ink);padding:4px 8px;font-size:10px;font-weight:750;white-space:nowrap}.model-details .button-primary{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:auto;text-align:center;min-height:44px;padding:11px 14px;width:100%}.model-grid--featured .model-visual-wrap{min-height:328px}
.device-580{--device-shell:linear-gradient(145deg,#34445b,#121c2c);--device-border:#556a85;--device-text:#f3f8ff}.device-570{--device-shell:linear-gradient(145deg,#e7ebf1,#9eacc1);--device-border:#9aa6ba;--device-text:#142847}.device-880{--device-shell:linear-gradient(145deg,#242d32,#0d151b);--device-border:#475661;--device-text:#f0f7f7}.device-500{--device-shell:linear-gradient(145deg,#43526b,#172336);--device-border:#55677d;--device-text:#f3f6fd}.device-top{font-weight:750;font-size:8px;line-height:1.2;display:flex;justify-content:space-between;gap:2px;height:18px;white-space:nowrap}.device-top span:last-child{font-size:7px}.device-subheading{font-size:6px;letter-spacing:.08em;text-align:center;opacity:.75;margin-bottom:3px}.device-screen{height:58px;background:#d5decf;color:#243228;border:3px solid #7f9295;border-radius:3px;padding:4px;display:flex;flex-direction:column;align-items:flex-end;justify-content:space-between;font:8px monospace}.device-screen strong{font-size:15px}.device-navigator{display:grid;grid-template-columns:repeat(5,1fr);place-items:center;width:65%;margin:7px auto 0;gap:2px;min-height:20px}.device-nav-arrow{font-size:11px;font-weight:900;line-height:1;color:var(--device-text,#eff5ff);opacity:.86}.device-nav-core{width:14px;height:14px;border-radius:50%;border:2px solid currentColor;opacity:.8}.device-large .device-navigator{min-height:34px;margin-top:8px}.device-large .device-nav-arrow{font-size:16px}.device-large .device-nav-core{width:22px;height:22px}.device-buttons{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:4px;margin-top:7px;flex:1;align-content:space-around}.device-key-function{background:#3179c8}.device-570 .device-key-function{background:#5578ac}.device-880 .device-key-function{background:#256971}.device-500 .device-key-function{background:#5464a2}.device-key-number{background:#e6eaf1;color:#14203a;border-bottom-color:#8895ab}.button-primary,.button-outline{display:inline-flex;align-items:center;justify-content:center;gap:8px;text-align:center;border-radius:8px;padding:10px 12px;background:var(--brand);color:white;border:1px solid var(--brand);font-size:12px;font-weight:750;min-height:44px}.button-primary:hover{background:var(--brand-hover)}.button-outline{background:transparent;color:var(--action-ink)}.button-outline:hover{background:var(--blue-tint)}.fineprint{font-size:11px;margin:11px 0 0;color:var(--muted)}.tool-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:12px}.tool-card{overflow-wrap:anywhere;min-width:0;border:1px solid var(--border);border-radius:12px;display:flex;flex-direction:column;align-items:center;text-align:center;gap:6px;padding:17px 10px 15px;min-height:196px}.tool-card:hover,.category-card:hover,.directory-card:hover{border-color:var(--brand);background:var(--hover-bg)}.tint-icon{display:grid;place-items:center;width:48px;height:48px;border-radius:13px;flex:none}.tool-card strong{font-size:13px}.tool-card small{color:var(--muted);font-size:11px;max-width:140px}.tool-state{margin-top:auto;font-size:10px;font-weight:650;line-height:1.35;padding:5px 9px;border-radius:100px;background:var(--soft);color:var(--muted)}.category-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:11px}.category-card{overflow-wrap:anywhere;display:flex;align-items:center;gap:12px;border:1px solid var(--border);border-radius:11px;padding:12px;min-width:0}.category-card>span:nth-child(2){flex:1;min-width:0}.category-card strong,.category-card small{display:block}.category-card strong{font-size:13px}.category-card small{font-size:11px;color:var(--muted)}.category-card>svg{color:#7a9cc1}.article-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.article-card{overflow-wrap:anywhere;border:1px solid var(--border);border-radius:12px;overflow:hidden;min-width:0}.article-card h3,.article-card h2{font-size:13px;margin:12px 12px 6px}.article-card p{font-size:11px;margin:0 12px 12px}.cover-1{background:#fff0e3;color:#d88c2d}.cover-2{background:#edfaee;color:#418954}.cover-3{background:#f1ebff;color:#8452c9}.preview-label{font-size:10px;color:#6b7b93;margin:0 12px 12px;display:block}.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.faq-grid details{border:1px solid var(--border);border-radius:9px;padding:0 12px}.faq-grid summary{font-size:13px;font-weight:650;list-style:none;display:flex;justify-content:space-between;align-items:center;cursor:pointer;gap:8px}.faq-grid summary::-webkit-details-marker{display:none}.faq-grid details[open] summary svg{transform:rotate(180deg)}.faq-grid details p{font-size:12px;margin:2px 0 12px}
.site-footer{background:#17365f;color:white;padding:34px 0 15px}.footer-columns{display:grid;grid-template-columns:2fr 1fr 1fr 1.35fr;gap:35px}.footer-columns p{font-size:12px;color:#bccbdf;margin-top:14px}.footer-columns h2{font-size:14px;margin-bottom:13px}.footer-columns a:not(.brand){display:block;font-size:12px;color:#cfddf0;margin:6px 0}.footer-bottom{display:flex;justify-content:space-between;border-top:1px solid #3a5476;margin-top:24px;padding-top:12px;font-size:11px;color:#b4c7dd}.footer-brand strong{font-size:17px}
.breadcrumbs a{color:var(--brand);padding:10px 1px}.page-intro{padding:24px 0 16px;max-width:780px}.page-intro h1{margin:7px 0}.page-intro p{font-size:15px}.eyebrow{font-size:12px;letter-spacing:.06em;text-transform:uppercase;font-weight:750;color:var(--brand)}.model-detail-layout{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(260px,1fr);gap:16px;align-items:start}.model-showcase{min-height:605px;padding:24px;display:flex;align-items:center;flex-direction:column;justify-content:center;gap:14px}.showcase-header{width:100%;display:flex;justify-content:space-between;align-items:center;gap:12px}.device-visual.device-large{width:252px;height:490px;padding:18px 15px;border-radius:25px 25px 38px 38px;border-width:5px}.device-large .device-top{height:37px;font-size:11px}.device-large .device-top span:last-child{font-size:9px}.device-large .device-subheading{font-size:8px;margin-bottom:6px}.device-large .device-screen{height:91px;font-size:16px;padding:11px}.device-large .device-screen strong{font-size:22px}.device-large .device-buttons{gap:7px;margin-top:9px}.device-large .device-key{height:23px;font-size:9px;border-radius:5px}.model-spec,.tool-notes{padding:26px}.model-spec{display:flex;flex-direction:column;gap:22px}.model-spec-intro{display:flex;gap:12px;align-items:flex-start}.model-spec-intro>div{min-width:0;flex:1}.model-spec-intro h2{font-size:19px;margin:0 0 6px}.model-spec-intro p{margin:0;font-size:13px}.model-design-facts{display:grid;gap:12px}.model-design-facts>div{display:flex;align-items:flex-start;gap:10px;padding:11px 12px;border:1px solid var(--border);border-radius:10px;background:var(--field-bg)}.model-design-facts>div>span{color:var(--action-ink);flex:none}.model-design-facts p{margin:0;font-size:12px;line-height:1.55}.model-switcher{border-top:1px solid var(--border);padding-top:20px}.model-switcher h3{font-size:14px;margin:0 0 12px}.model-switch-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.model-switch-item{display:flex;align-items:center;justify-content:space-between;gap:5px;min-height:44px;padding:10px 12px;border:1px solid var(--border);border-radius:10px;font-size:12px;font-weight:700;min-width:0;overflow-wrap:anywhere}.model-switch-item:is(a):hover{border-color:var(--brand);background:var(--hover-bg)}.model-switch-item.is-current{background:var(--blue-tint);color:var(--action-ink);border-color:var(--brand);flex-direction:column;align-items:flex-start;justify-content:center}.model-switch-item small{font-size:10px;font-weight:400}.model-spec ul{padding-left:20px;line-height:1.9;font-size:14px;color:var(--muted)}.model-spec .button-outline{display:flex;max-width:280px}.tool-detail-layout{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(260px,1fr);gap:16px}.tool-preview{padding:25px}.preview-banner{display:flex;align-items:center;gap:14px;background:var(--blue-tint);border-radius:12px;padding:18px;color:var(--brand)}.preview-banner strong,.preview-banner span{display:block}.preview-banner span{color:var(--muted);font-size:12px}.preview-form{display:grid;gap:15px;margin-top:22px}.preview-form label{display:block;font-weight:700;margin-bottom:6px;font-size:12px}.preview-form input{border:1px solid var(--border);border-radius:9px;padding:12px;width:100%;background:var(--soft)}.preview-form button{max-width:270px}.directory-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.directory-card{border:1px solid var(--border);padding:16px;border-radius:12px;display:grid;grid-template-columns:48px 1fr 20px;align-items:center;gap:0 12px}.directory-card .tint-icon{grid-row:span 2}.directory-card strong{font-size:14px}.directory-card small{color:var(--muted);font-size:12px}.directory-card>svg{grid-column:3;grid-row:1/span 2}.notice-card{padding:25px}.notice-card p{margin:8px 0 0}.editorial{padding:28px;margin-top:20px}.prose-page{max-width:900px;padding:clamp(20px,3vw,36px);margin:20px auto}.prose-page .entry-content{font-size:16px;line-height:1.8;max-width:var(--reading);margin-inline:auto;overflow-wrap:break-word}.prose-page .post-hero{display:block;width:100%;height:auto;max-height:490px;object-fit:cover;border-radius:10px;margin:18px 0 26px}.post-meta{font-size:12px;display:flex;align-items:center;gap:7px;color:var(--muted);margin:12px 0 0}.editorial-article-header{max-width:var(--reading);margin-inline:auto;padding-bottom:12px;border-bottom:1px solid var(--border);margin-bottom:24px}.editorial-article-header h1{font-size:clamp(26px,3vw,38px);line-height:1.24;margin:10px 0 0;overflow-wrap:break-word}
/* Canonical rich-content owner: Gutenberg + classic editor, posts + pages. */
.wp-content>:first-child{margin-top:0}.wp-content>:last-child{margin-bottom:0}
.wp-content :where(h2,h3,h4,h5,h6){color:var(--ink);margin:1.75em 0 .65em;font-weight:750;line-height:1.35;scroll-margin-top:24px}
.wp-content h2{font-size:clamp(22px,2.3vw,27px)}.wp-content h3{font-size:21px}.wp-content h4{font-size:18px}
.wp-content :where(p,ul,ol,figure,blockquote,pre,table,.wp-block-columns,.wp-block-buttons){margin-block:0 1.25em}
.wp-content :where(ul,ol){padding-left:1.6em;color:var(--ink)}.wp-content li{padding-left:.15em;margin:.3em 0}.wp-content li::marker{color:var(--action-ink)}
.wp-content a:not(.wp-block-button__link){color:var(--action-ink);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}.wp-content a:hover{text-decoration-thickness:2px}
.wp-content :where(img,video,iframe){max-width:100%;height:auto}.wp-content figure{max-width:100%;margin-inline:0}.wp-content :where(figcaption,.wp-element-caption){font-size:13px;color:var(--muted);text-align:center;margin:8px 0 0;line-height:1.5}
.wp-content :where(.wp-block-image,.wp-block-gallery,.wp-block-embed){margin-block:22px}.wp-content .wp-block-image img{border-radius:10px}
.wp-content :where(blockquote,.wp-block-quote){margin-inline:0;padding:16px 20px;border-left:4px solid var(--brand);background:var(--field-bg);border-radius:0 10px 10px 0;font-style:normal}
.wp-content blockquote p:last-child{margin-bottom:0}.wp-content :where(code,kbd){font-family:Consolas,Monaco,monospace;font-size:.9em;background:var(--soft);padding:2px 5px;border-radius:4px;overflow-wrap:anywhere}
.wp-content pre{background:var(--soft);color:var(--ink);border:1px solid var(--border);border-radius:10px;padding:16px;overflow:auto;white-space:pre;max-width:100%}.wp-content pre code{padding:0;background:none;overflow-wrap:normal}
.wp-content :where(table,.wp-block-table table){display:block;max-width:100%;overflow-x:auto;border-collapse:collapse;font-size:14px;line-height:1.5;overscroll-behavior-inline:contain}
.wp-content :where(th,td){border:1px solid var(--border);padding:10px 12px;min-width:125px;text-align:left;vertical-align:top}.wp-content th{background:var(--soft);color:var(--ink);font-weight:750}.wp-content table:focus-visible{outline:3px solid var(--focus);outline-offset:2px}.table-scroll-hint{display:block;font-size:12px;color:var(--muted);margin:-.5em 0 1.5em}.table-scroll-hint[hidden]{display:none}
.wp-content :where(.wp-block-button__link){display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:11px 18px;border-radius:10px;background:var(--brand);color:#fff;text-decoration:none}
.wp-content :where(.wp-block-separator,hr){border:0;border-top:1px solid var(--border);margin:28px 0}
.wp-content :where(.wp-block-columns){display:flex;flex-wrap:wrap;gap:20px}.wp-content .wp-block-column{min-width:min(100%,220px);flex:1}
.wp-content :where(.wp-block-cover,.wp-block-media-text){max-width:100%;overflow:hidden;border-radius:10px}
.wp-content :where(.alignwide,.alignfull){max-width:100%}
/* Shared informative empty-state owner, not a new page family. */
.editorial-empty{display:flex;align-items:center;gap:18px;background:var(--field-bg);border:1px dashed var(--border);border-radius:12px;padding:24px}
.editorial-empty-icon{width:48px;height:48px;display:grid;place-items:center;flex:none;background:var(--blue-tint);color:var(--action-ink);border-radius:12px}
.editorial-empty-copy{flex:1;min-width:0}.editorial-empty h2{font-size:18px;margin:0 0 4px}.editorial-empty p{font-size:13px;margin:0}.editorial-empty .button-outline{flex:none}
.empty-page{text-align:center;padding:54px 22px;display:grid;justify-items:center;gap:12px}.empty-page h1{margin:0}.empty-page p{max-width:520px;margin:0 0 8px}.empty-code{font-size:clamp(52px,8vw,92px);font-weight:800;line-height:1;letter-spacing:-.055em;color:var(--brand)}.empty-page .button-primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-width:170px}.discovery-empty{margin-block:14px}.discovery-empty h2{display:flex;align-items:center;gap:10px}
[data-theme="dark"]{--bg:#111b2b;--surface:#1b2a3e;--border:#35485f;--ink:#f5f8fd;--muted:#c1d0e0;--blue-tint:#223d5f;--soft:#293a4e;--shadow:none;--hover-bg:#263c55;--field-bg:#223247;--brand-dark:#b4d7ff;--action-ink:#add6ff;--brand-hover:#075bc9;--benefit-subtext:#c1d0e0;--tint-mint-bg:#193e3a;--tint-mint-ink:#9ce8ce;--tint-blue-bg:#203b5f;--tint-blue-ink:#acd0ff;--tint-violet-bg:#352a50;--tint-violet-ink:#d8c0ff;--tint-rose-bg:#502d40;--tint-rose-ink:#ffbad0;--tint-amber-bg:#493923;--tint-amber-ink:#ffe0a2}
[data-theme="dark"] .key{background:#324359;color:#f4f8ff}[data-theme="dark"] .key.operator{background:#244970;color:#b7d9ff}[data-theme="dark"] .key.danger{background:#693741;color:#fff}[data-theme="dark"] .key.equals{background:var(--brand)}[data-theme="dark"] .calc-display{background:#273e5b}







/* Phase 3 canonical page-family styles: no one-off page overrides. */
.breadcrumbs{font-size:12px;color:var(--muted);margin:0 0 16px;display:flex;align-items:center;flex-wrap:wrap;gap:9px;min-height:44px;margin-bottom:12px;}.breadcrumbs span[aria-hidden]{color:var(--muted)}.breadcrumbs [aria-current]{color:var(--ink);font-weight:650}
.header-search{display:flex;align-items:center;width:210px;min-width:0;border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.12);border-radius:10px;overflow:hidden}.header-search input{min-width:0;width:100%;border:0;outline-offset:-3px;background:transparent;padding:10px;color:#fff;font:inherit;font-size:12px}.header-search input::placeholder{color:#d9e7fc}.header-search button{display:grid;place-items:center;width:44px;min-width:44px;height:44px;border:0;background:transparent;color:white;cursor:pointer}
.search-panel{padding:22px;margin-bottom:18px}.search-panel label{display:block;font-weight:700;margin-bottom:8px}.search-controls{display:flex;gap:10px}.search-controls input{flex:1;min-width:0;border:1px solid var(--border);background:var(--surface);color:var(--ink);padding:12px;border-radius:9px;font:inherit}.search-controls .button-primary{min-width:120px}.search-results{margin-block:14px 24px}.pagination-wrap{padding:16px 0 35px}.pagination-wrap .nav-links{display:flex;flex-wrap:wrap;gap:8px}.pagination-wrap a,.pagination-wrap .current{display:inline-grid;place-items:center;min-width:44px;min-height:44px;padding:8px;border:1px solid var(--border);border-radius:9px}.pagination-wrap .current{background:var(--brand);color:white}.related-navigation{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}.related-navigation .button-outline{display:inline-flex;align-items:center;min-height:44px;padding:11px 14px;border:1px solid var(--border);border-radius:9px}
:where(a,button,input,select,textarea,summary):focus-visible{outline:3px solid var(--focus);outline-offset:3px;}.header-search:focus-within{outline:2px solid #fff;outline-offset:2px}


/* Tool workspace: single CSS owner shared by scientific, finance, school, health and math tools. */
.tool-workspace{padding:24px;min-width:0}
.workspace-heading{display:flex;align-items:center;gap:14px;margin-bottom:18px}
.workspace-heading .tint-icon{flex:none;width:50px;height:50px}
.workspace-heading-copy{flex:1;min-width:0}
.workspace-kicker{display:block;font-weight:750;color:var(--action-ink);font-size:11px;letter-spacing:.055em;text-transform:uppercase;margin-bottom:3px}
.workspace-heading h2{margin:0 0 5px;font-size:21px}
.workspace-heading p{font-size:13px;margin:0}
.workspace-heading .status-pill{margin-left:auto;white-space:nowrap}
.workspace-preview-notice{background:var(--field-bg);border:1px dashed var(--border);border-radius:11px;padding:12px 15px;margin:0 0 20px;display:flex;align-items:flex-start;gap:11px;color:var(--muted);font-size:12px}
.workspace-preview-notice svg{color:var(--action-ink);margin-top:1px}
.workspace-preview-notice strong{color:var(--ink)}
.tool-fieldset{margin:0;padding:0;border:0;min-width:0}
.tool-fieldset:disabled{opacity:1}
.tool-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.tool-field{min-width:0}
.tool-field label{display:block;font-size:13px;font-weight:750;margin-bottom:8px}
.tool-input-wrap{position:relative}
.tool-input-wrap input,.tool-input-wrap select{width:100%;min-height:52px;border:1px solid var(--border);background:var(--field-bg);color:var(--ink);border-radius:10px;padding:10px 15px;font:inherit}
.tool-input-wrap input:disabled,.tool-input-wrap select:disabled{opacity:1;-webkit-text-fill-color:var(--muted);cursor:not-allowed}
.tool-input-wrap input::placeholder{color:var(--muted);opacity:1}
.tool-input-wrap>span{display:block;font-size:11px;color:var(--muted);margin-top:6px}
.tool-actions{display:flex;gap:10px;flex-wrap:wrap;margin:22px 0 0}
.tool-actions button{min-height:44px;padding:10px 20px}
.tool-actions button:disabled{opacity:1;cursor:not-allowed}.tool-actions .button-primary:disabled{background:var(--soft);border-color:var(--border);color:var(--muted)}.tool-actions .button-outline:disabled{opacity:.72}
.tool-result-preview{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:22px;margin-top:22px;background:var(--blue-tint);border:1px solid var(--border);border-radius:12px}
.tool-result-copy{min-width:0;flex:1}
.result-label{display:block;font-size:11px;letter-spacing:.04em;text-transform:uppercase;font-weight:750;color:var(--action-ink);margin-bottom:5px}
.tool-result-preview strong{display:block;margin-bottom:4px;color:var(--ink);font-size:15px}
.tool-result-preview p{font-size:12px;margin:0;line-height:1.55}
.result-placeholder{font-size:34px;font-weight:750;border:1px dashed var(--border);color:var(--muted);background:var(--surface);border-radius:12px;min-width:86px;min-height:76px;display:grid;place-items:center}

.tool-validation-error{margin:10px 0 0;min-height:0;color:var(--tint-rose-ink);font-weight:650;font-size:13px}
.tool-validation-error:empty{display:none}
.tool-input-wrap :is(input,select)[aria-invalid="true"]{border-color:var(--tint-rose-ink);outline:2px solid var(--tint-rose-ink);outline-offset:1px}
.tool-result-preview:has([data-tool-result]){align-items:flex-start}
.tool-result-preview [data-tool-result]{font-size:clamp(22px,2.3vw,31px);line-height:1.3;overflow-wrap:anywhere}
.tool-result-steps{list-style:none;display:grid;gap:7px;margin:12px 0 0;padding:0}
.tool-result-steps:empty{display:none}
.tool-result-steps li{font-size:13px;line-height:1.55;color:var(--ink);overflow-wrap:anywhere}
.tool-help-column{display:grid;align-content:start;gap:14px;min-width:0}
.tool-help-panel{padding:20px 22px;min-width:0}
.tool-help-panel h2{font-size:16px;display:flex;align-items:center;gap:9px;margin-bottom:14px}
.tool-help-panel h2 svg{color:var(--action-ink)}
.tool-help-panel p{font-size:13px;margin:0;line-height:1.65}
.tool-steps{list-style:none;counter-reset:tool-steps;display:grid;gap:13px;padding:0;margin:0}
.tool-steps li{counter-increment:tool-steps;display:grid;grid-template-columns:28px minmax(0,1fr);align-items:start;gap:9px;color:var(--muted);font-size:12px;line-height:1.55}
.tool-steps li::before{content:counter(tool-steps);border-radius:50%;background:var(--blue-tint);color:var(--action-ink);font-weight:750;width:27px;height:27px;display:grid;place-items:center}
.tool-example-panel{background:var(--field-bg)}
.example-flag{display:inline-block;margin-top:12px;background:var(--blue-tint);color:var(--action-ink);padding:5px 9px;border-radius:6px;font-size:11px;font-weight:650}
.tool-note-panel{border-style:dashed}
.science-demo{max-width:560px;margin-inline:auto}
.science-screen{min-height:138px;padding:16px;background:var(--blue-tint);border:1px solid var(--border);border-radius:12px;display:grid;gap:7px;text-align:right}
.science-screen small{font-size:11px;color:var(--muted)}
.science-screen strong{font-size:20px;color:var(--ink)}
.science-screen>span{font-size:30px;color:var(--muted)}
.science-keys{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px;margin-top:14px}
.science-key{min-height:48px;display:grid;place-items:center;padding:6px 2px;background:var(--soft);border-radius:9px;border:1px solid var(--border);font-size:13px;font-weight:700;color:var(--ink)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}


/* Phase 7: shared catalog discovery component, owned once for directory and model index */
.catalog-filter{padding:18px 22px;margin-bottom:18px;display:grid;gap:9px}
.catalog-filter label{font-weight:750;font-size:14px}
.catalog-filter-control{display:flex;align-items:center;gap:10px;padding:0 14px;border:1px solid var(--border);border-radius:10px;background:var(--soft);color:var(--muted)}
.catalog-filter-control:focus-within{outline:3px solid var(--focus);outline-offset:2px}
.catalog-filter-control input{width:100%;min-width:0;min-height:48px;border:0;outline:none;background:transparent;color:var(--ink)}
.catalog-filter-status{margin:0;font-size:12px;min-height:18px}



/* Phase 8 base component ownership: accessible illustrations and readable content. */
img{max-width:100%;height:auto}svg{max-width:100%}.article-card,.model-card,.tool-card,.category-card{min-width:0}.article-card h3,.model-details h3{overflow-wrap:anywhere}.article-card a{display:block;height:100%}.model-visual-wrap{min-width:0;width:100%;display:grid;place-items:center;background:var(--soft);padding:16px;border-radius:11px;min-height:316px;overflow:hidden;contain:layout paint;isolation:isolate;}.device-visual{max-width:100%;background:var(--device-shell,linear-gradient(145deg,#323d52,#111b2e));color:var(--device-text,#eff5ff);border:3px solid var(--device-border,#57647a);border-radius:13px 13px 21px 21px;width:138px;height:284px;padding:10px 9px;box-shadow:inset 0 1px 3px #ffffff47,0 9px 16px #1829472b;flex:none;display:flex;flex-direction:column;transform-origin:center center;}.button-primary,.button-outline,.section-link{min-height:44px}.history-entry button,.text-button{min-width:44px;min-height:44px}.article-cover{height:auto;display:grid;place-items:center;background:#e7f1ff;color:#1372e5;overflow:hidden;aspect-ratio:16/9;}.article-cover img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/9;}.device-key{display:grid;place-items:center;min-height:17px;border-radius:3px;background:#68758a;color:#fff;font-family:Arial,sans-serif;font-size:5px;font-weight:700;white-space:nowrap;overflow:hidden;border-bottom:1px solid #203047;text-overflow:clip;}
/* Article list canonical component owner (index, search, archive) */
.article-empty{grid-column:1/-1;display:flex;align-items:flex-start;gap:16px;min-height:122px}.article-empty>svg{color:var(--action-ink);flex:none}.article-empty h3{margin:0 0 5px}.article-empty p{margin:0}.article-list-section{padding:22px}.article-card .article-copy{min-width:0;padding:14px}.article-card .article-copy h3{margin:0 0 7px}.article-card .article-copy p{margin:0}.pagination-wrap .page-numbers{display:flex;gap:8px;flex-wrap:wrap;list-style:none;padding:0;margin:0}.pagination-wrap .page-numbers li{margin:0}
/* Shared current-page navigation / focus state */
.primary-nav a[aria-current="page"],.primary-nav a.nav-parent-active{font-weight:700;text-decoration:underline;text-underline-offset:7px}.primary-nav a[aria-current="page"]:focus-visible{outline:3px solid var(--focus);outline-offset:3px}.model-card .button-primary:focus-visible,.tool-card:focus-visible,.article-card a:focus-visible{outline:3px solid var(--focus);outline-offset:3px}
/* Canonical intrinsic-size, keyboard and card behaviors (Phase 16) */
:where(.calculator-panel,.history-panel,.sidebar,.tool-workspace,.model-card,.tool-card,.article-card){min-width:0}
:where(.section-heading,.content-heading,.workspace-heading)>*{min-width:0}
:where(.model-details,.article-copy,.content-heading) :is(h1,h2,h3,p){overflow-wrap:break-word}
:where(button,.button-primary,.icon-button,.section-link,.side-item){touch-action:manipulation}



.content-heading .section-link{flex:none}
:where(.tool-card,.category-card,.directory-card,.article-card) a:focus-visible{outline:3px solid var(--focus);outline-offset:3px}

@media(max-width:1100px){.calculator-layout{grid-template-columns:200px minmax(0,1fr) 240px}.primary-nav{gap:10px}.primary-nav-list{gap:10px}.header-inner{gap:15px}.primary-nav a{font-size:12px}.model-grid,.model-grid--catalog{grid-template-columns:repeat(2,minmax(0,1fr))}.tool-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.calculator-panel{min-width:0;padding:15px}.status-pill{display:none}.header-search{width:155px}}
@media(max-width:820px){.header-inner{min-height:66px}.mobile-menu{display:grid}.primary-nav{display:none;position:absolute;left:0;right:0;top:100%;background:#234c87;padding:12px 20px;flex-direction:column;align-items:stretch;box-shadow:0 10px 16px #0c234455}.primary-nav.is-open{display:flex}.primary-nav-list{display:flex;flex-direction:column;align-items:stretch;gap:0}.primary-nav-list li{width:100%}.primary-nav a{font-size:15px}.calculator-layout{grid-template-columns:minmax(0,1fr) 260px}.sidebar{grid-column:1/-1;order:3}.sidebar-list{grid-template-columns:repeat(3,minmax(0,1fr))}.aside-stack{grid-column:2;grid-row:1}.calculator-panel{grid-column:1;grid-row:1}.benefits{grid-template-columns:repeat(2,minmax(0,1fr))}.category-grid,.directory-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.article-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-columns{grid-template-columns:repeat(2,minmax(0,1fr))}.header-search{width:180px}}
@media(max-width:600px){.header-inner{flex-wrap:wrap;padding-block:9px;gap:8px}.brand{margin-right:auto}.header-actions{margin-left:auto;display:contents}.header-search{order:3;flex:1 0 100%;width:100%;max-width:none}.theme-toggle{margin-left:auto}.mobile-menu{margin-left:0}.header-search input{min-width:0;width:100%;opacity:1}.shell{padding-inline:14px}.main-shell{padding-block:14px 30px}.brand strong{font-size:17px}.brand small{font-size:9px}.calculator-layout{display:flex;flex-direction:column}.calculator-panel{order:0;padding:14px}.aside-stack{order:1;display:block}.aside-stack .aside-card+ .aside-card{margin-top:10px}.history-card .empty-state{min-height:108px}.history-card .empty-state .ui-icon{display:none}.sidebar{order:2}.sidebar-list{grid-template-columns:repeat(2,minmax(0,1fr))}.sidebar-heading{padding:6px 8px}.side-item{min-height:60px}.side-item small{display:none}.section-heading h1{font-size:25px}.key{min-height:58px;font-size:24px}.calc-result{font-size:35px}.calc-display{min-height:105px}.benefits{gap:8px}.benefit{padding:11px;gap:7px}.benefit strong{font-size:12px}.benefit small{font-size:10px}.benefit>svg{width:23px;height:23px}.content-section{padding:14px}.content-heading{align-items:flex-start;gap:10px;flex-wrap:wrap}.content-heading h2{font-size:18px}.content-heading p{font-size:11px}.section-link{font-size:11px}.tool-grid,.category-grid,.article-grid,.faq-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.directory-grid{grid-template-columns:minmax(0,1fr)}.model-grid,.model-grid--catalog{grid-template-columns:minmax(0,1fr)}.model-card{padding:12px}.model-visual-wrap{min-height:310px}.model-details{width:100%;min-width:0;text-align:left}.model-details .button-primary{justify-content:center}.model-detail-layout,.tool-detail-layout{grid-template-columns:1fr}.model-showcase{min-height:auto;padding:18px 12px}.model-spec,.tool-notes{padding:18px}.model-switch-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.category-card{overflow-wrap:anywhere;gap:8px;padding:8px}.category-card .tint-icon{width:38px;height:38px}.category-card small{display:none}.category-card>svg{display:none}.article-cover{height:105px}.footer-columns{gap:18px}.footer-bottom{gap:10px;flex-direction:column}.header-search button{flex:none}.search-controls{flex-direction:column}.search-controls .button-primary{width:100%}.tool-workspace{padding:16px}.tool-fields{grid-template-columns:1fr}.workspace-preview-notice{padding:12px}.tool-result-preview{align-items:stretch;flex-direction:column;padding:18px}.result-placeholder{width:100%;min-height:64px}.tool-actions{margin-top:16px}.tool-actions button{flex:1}.workspace-heading .tint-icon{width:44px;height:44px}.workspace-heading{flex-wrap:wrap}.workspace-heading .status-pill{margin-left:0}.science-keys{gap:5px}.science-key{font-size:11px;min-height:44px}.tool-help-panel{padding:16px}.catalog-filter{padding:14px}.article-list-section{padding:14px}.editorial-empty{flex-direction:column;align-items:flex-start;padding:18px;gap:12px}.editorial-empty .button-outline{width:100%;justify-content:center}.wp-content :where(h2,h3){overflow-wrap:anywhere}.wp-content :where(.wp-block-columns){display:block}.wp-content .wp-block-column+.wp-block-column{margin-top:16px}.wp-content pre{white-space:pre-wrap;overflow-wrap:anywhere}}
@media(max-width:390px){.header-inner{gap:7px}.model-grid,.model-grid--catalog,.article-grid{grid-template-columns:1fr}.model-card{text-align:left}.model-visual-wrap{padding:12px;min-height:300px}.model-details{text-align:left}.tool-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.brand strong{font-size:15px}.brand-mark{width:35px;height:38px}.header-actions{gap:2px}.icon-button{width:40px}.side-item strong{font-size:12px}.faq-grid{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important}}