/*
Theme Name: MathCheck Pro
Theme URI: https://mathcheck.pro
Author: MathCheck Pro
Description: Custom theme for MathCheck Pro. A calculator-first, answer-checking math site for students. Fast, self-hosted fonts, no page builder.
Version: 1.0.0
Requires at least: 6.0
Requires PHP: 8.0
License: GPL-2.0-or-later
Text Domain: mathcheck-pro
*/

@font-face{font-family:"Bricolage Grotesque";src:url(assets/fonts/bricolage-grotesque.woff2) format("woff2");font-weight:200 800;font-display:swap}
@font-face{font-family:"Figtree";src:url(assets/fonts/figtree.woff2) format("woff2");font-weight:300 900;font-display:swap}
@font-face{font-family:"JetBrains Mono";src:url(assets/fonts/jetbrains-mono.woff2) format("woff2");font-weight:100 800;font-display:swap}

:root{
  --bg:#F2F5F1;--surface:#FFFFFF;--ink:#12201A;--muted:#4B5B53;--line:#D9E1DB;
  --accent:#0A7D4F;--accent-dark:#075C3A;--accent-tint:#E3F2EA;
  --panel:#0E1A16;--panel-raised:#17271F;--panel-line:#2A3D33;--panel-accent:#5CE0A6;--danger:#B42318;
  --r-ctl:10px;--r-panel:18px;--wrap:1180px;
  --f-head:"Bricolage Grotesque",system-ui,sans-serif;
  --f-body:"Figtree",system-ui,sans-serif;
  --f-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}

*,*::before,*::after{box-sizing:border-box}
:where(h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote,dl,dd,pre){margin:0}
:where(ul,ol){padding:0;list-style:none}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:400 17px/1.6 var(--f-body);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img,svg{max-width:100%;height:auto}
a{color:var(--accent);text-underline-offset:3px}
a:hover{color:var(--accent-dark)}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.wrap{width:min(var(--wrap),100% - 40px);margin-inline:auto}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:12px;top:-60px;background:var(--ink);color:#fff;padding:10px 16px;border-radius:var(--r-ctl);z-index:100}
.skip:focus{top:12px}
.muted{color:var(--muted)}

h1,h2,h3,h4{font-family:var(--f-head);color:var(--ink);letter-spacing:-.015em}
h1{font-size:clamp(2.1rem,3.9vw,3.1rem);line-height:1.05;font-weight:800;letter-spacing:-.025em}
h2{font-size:clamp(1.65rem,2.7vw,2.35rem);line-height:1.12;font-weight:750}
h3{font-size:1.3rem;line-height:1.2;font-weight:700}
h4{font-size:1.08rem;line-height:1.25;font-weight:700}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 22px;border-radius:var(--r-ctl);border:1.5px solid transparent;font:700 1rem/1 var(--f-body);text-decoration:none;cursor:pointer;transition:background-color .15s,color .15s,border-color .15s}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark);color:#fff}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink);color:#fff}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 94%,transparent);backdrop-filter:saturate(1.2) blur(10px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;gap:20px;min-height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);flex:none}
.brand-mark{display:block;width:36px;height:36px;flex:none}
.brand-name{font:800 1.3rem/1 var(--f-head);letter-spacing:-.02em;display:inline-flex;align-items:center}
.brand .pro{margin-left:7px;padding:3px 7px;border-radius:999px;background:var(--accent);color:#fff;font:700 .62rem/1 var(--f-body);letter-spacing:.08em;text-transform:uppercase}
.nav{margin-left:auto}
.nav .menu{display:flex;align-items:center;gap:2px}
.nav .menu>li{position:relative}
.nav a{display:block;padding:10px 14px;border-radius:var(--r-ctl);color:var(--ink);font-weight:600;font-size:.98rem;text-decoration:none;transition:background-color .15s}
.nav a:hover,.nav .current-menu-item>a,.nav .current-menu-ancestor>a{background:var(--accent-tint);color:var(--accent-dark)}
.nav .menu-item-has-children>a::after{content:"";display:inline-block;width:6px;height:6px;margin:0 0 3px 8px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg)}
.nav .sub-menu{display:none;position:absolute;left:0;top:100%;min-width:280px;padding:8px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-panel)}
.nav .menu-item-has-children:hover>.sub-menu,.nav .menu-item-has-children:focus-within>.sub-menu{display:block}
.nav .sub-menu a{font-weight:500;padding:9px 12px}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border:1px solid var(--line);background:var(--surface);border-radius:var(--r-ctl);color:var(--ink);cursor:pointer;flex:none;transition:border-color .15s}
.icon-btn:hover{border-color:var(--ink)}
.nav-toggle{display:none}
.search-panel{border-top:1px solid var(--line);background:var(--surface);padding:14px 0}
.search-panel[hidden]{display:none}
.search-form{display:flex;gap:10px}
.search-form input[type=search]{flex:1;min-height:48px;padding:0 16px;border:1.5px solid var(--line);border-radius:var(--r-ctl);font:500 1rem var(--f-body);background:var(--bg);color:var(--ink)}
.search-form input[type=search]:focus{border-color:var(--accent);outline:none}

/* hero */
.hero{padding:52px 0 72px}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,500px);gap:56px;align-items:center}
.hero h1{max-width:13em}
.lede{margin-top:20px;font-size:1.2rem;line-height:1.55;max-width:34em;color:var(--muted)}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

/* calculator */
.calc{background:var(--panel);color:#E8F3EC;border:1px solid var(--panel-line);border-radius:var(--r-panel);padding:14px;box-shadow:0 34px 60px -34px rgba(10,70,45,.5)}
.calc :focus-visible{outline-color:var(--panel-accent)}
.calc-tabs{display:grid;grid-template-columns:1fr 1fr;gap:4px;padding:4px;background:var(--panel-raised);border-radius:var(--r-ctl)}
.calc-tab{min-height:42px;border:0;border-radius:var(--r-ctl);background:transparent;color:color-mix(in srgb,#E8F3EC 72%,var(--panel));font:700 .95rem var(--f-body);cursor:pointer;transition:background-color .15s,color .15s}
.calc-tab[aria-selected=true]{background:var(--panel);color:var(--panel-accent)}
.calc-pane[hidden]{display:none}
.calc-screen{margin-top:12px;padding:12px 16px 10px;background:color-mix(in srgb,var(--panel) 70%,#000);border:1px solid var(--panel-line);border-radius:var(--r-ctl)}
.calc-expr{display:block;width:100%;padding:4px 0;background:transparent;border:0;color:#E8F3EC;font:500 1.3rem/1.3 var(--f-mono);outline:none;caret-color:var(--panel-accent)}
.calc-expr::placeholder{color:color-mix(in srgb,#E8F3EC 45%,var(--panel))}
.calc-result{display:block;min-height:2.7rem;text-align:right;font:600 2.15rem/1.25 var(--f-mono);color:var(--panel-accent);overflow-x:auto;white-space:nowrap}
.calc-result.is-preview{opacity:.65}
.calc-result.is-error{font-size:1rem;line-height:2.7rem;color:color-mix(in srgb,var(--danger) 45%,#fff);font-family:var(--f-body);font-weight:600}
.calc-sub{display:flex;justify-content:space-between;gap:12px;min-height:1.5rem;font:500 .85rem var(--f-mono);color:color-mix(in srgb,#E8F3EC 70%,var(--panel))}
.keys{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-top:12px}
.key{min-height:46px;padding:0;border:0;border-radius:var(--r-ctl);background:var(--panel-raised);color:#E8F3EC;font:500 1rem var(--f-mono);cursor:pointer;transition:background-color .12s,transform .06s}
.key:hover{background:color-mix(in srgb,var(--panel-raised) 80%,#fff)}
.key:active{transform:translateY(1px)}
.key.num{background:color-mix(in srgb,var(--panel-raised) 86%,#fff);font-weight:600}
.key.num:hover{background:color-mix(in srgb,var(--panel-raised) 74%,#fff)}
.key.op{color:var(--panel-accent);font-weight:600}
.key.eq{background:var(--accent);color:#fff;font-weight:700}
.key.eq:hover{background:var(--accent-dark)}
.key.small{font-size:.88rem}
.calc-tools{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.chip{min-height:36px;padding:0 14px;border:1px solid var(--panel-line);border-radius:999px;background:transparent;color:#E8F3EC;font:600 .85rem var(--f-body);cursor:pointer;transition:border-color .15s}
.chip:hover{border-color:var(--panel-accent)}
.calc-status{min-height:1.3rem;margin-top:8px;font:500 .85rem var(--f-body);color:var(--panel-accent)}
.calc details{margin-top:10px;border-top:1px solid var(--panel-line);padding-top:10px}
.calc summary{cursor:pointer;font:600 .9rem var(--f-body);color:color-mix(in srgb,#E8F3EC 80%,var(--panel))}
.hist{display:grid;gap:4px;margin-top:8px;max-height:180px;overflow:auto}
.hist button{display:flex;justify-content:space-between;gap:14px;width:100%;padding:8px 10px;border:0;border-radius:var(--r-ctl);background:transparent;color:#E8F3EC;font:500 .92rem var(--f-mono);text-align:left;cursor:pointer}
.hist button:hover{background:var(--panel-raised)}
.hist em{font-style:normal;color:var(--panel-accent)}
.hist-empty{padding:6px 10px;font:500 .88rem var(--f-body);color:color-mix(in srgb,#E8F3EC 65%,var(--panel))}
.field{margin-top:14px}
.field label{display:block;margin-bottom:6px;font:600 .85rem var(--f-body);color:color-mix(in srgb,#E8F3EC 80%,var(--panel))}
.field input{display:block;width:100%;min-height:50px;padding:0 14px;background:color-mix(in srgb,var(--panel) 70%,#000);border:1px solid var(--panel-line);border-radius:var(--r-ctl);color:#E8F3EC;font:500 1.1rem var(--f-mono)}
.field input:focus{border-color:var(--panel-accent);outline:none}
.calc .btn{margin-top:14px;width:100%}
.verdict{margin-top:14px;padding:14px 16px;border:1px solid;border-radius:var(--r-ctl);font-size:.98rem;line-height:1.5}
.verdict[hidden]{display:none}
.verdict strong{display:block;font:700 1.1rem var(--f-head);margin-bottom:4px}
.verdict.ok{border-color:var(--panel-accent);background:color-mix(in srgb,var(--panel-accent) 10%,transparent)}
.verdict.ok strong{color:var(--panel-accent)}
.verdict.bad{border-color:var(--danger);background:color-mix(in srgb,var(--danger) 14%,transparent)}
.verdict.bad strong{color:color-mix(in srgb,var(--danger) 45%,#fff)}
.verdict ul{margin-top:8px;padding-left:18px;list-style:disc}
.verdict .mono{font-family:var(--f-mono)}

/* sections */
.section{padding:72px 0}
.section-alt{background:var(--surface);border-block:1px solid var(--line)}
.section-head{max-width:46rem;margin-bottom:32px}
.section-head p{margin-top:12px;color:var(--muted);font-size:1.08rem}
.bento{display:grid;grid-template-columns:1.3fr 1fr;grid-template-rows:auto auto;gap:16px}
.cell{display:flex;flex-direction:column;gap:12px;padding:28px;border-radius:var(--r-panel);border:1px solid var(--line);background:var(--surface)}
.cell p{color:var(--muted)}
.cell .more{margin-top:auto;padding-top:8px;font-weight:700;color:var(--accent);text-decoration:none}
.cell .more:hover{text-decoration:underline}
.cell-tests{grid-row:span 2;background:var(--accent);border-color:var(--accent);color:#fff;justify-content:space-between;padding:36px}
.cell-tests>div{display:grid;gap:16px}\n.cell-tests h3{color:#fff;font-size:clamp(1.8rem,3vw,2.6rem);line-height:1.05;font-weight:800;max-width:10em}
.cell-tests p{color:#fff;font-size:1.1rem;max-width:28em}
.cell-tests .more{color:#fff}
.cell-tools{background:var(--panel);border-color:var(--panel);color:#E8F3EC}
.cell-tools h3{color:#fff}
.cell-tools p{color:color-mix(in srgb,#E8F3EC 82%,var(--panel))}
.cell-tools .more{color:var(--panel-accent)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.steps{counter-reset:s;display:grid;gap:14px;margin-top:20px}
.steps li{counter-increment:s;display:grid;grid-template-columns:34px 1fr;gap:12px;align-items:start}
.steps li::before{content:counter(s);display:grid;place-items:center;width:34px;height:34px;border-radius:var(--r-ctl);background:var(--accent-tint);color:var(--accent-dark);font:700 1rem var(--f-head)}
.example{padding:28px;background:var(--bg);border:1px solid var(--line);border-radius:var(--r-panel)}
.example dl{display:grid;grid-template-columns:auto 1fr;gap:10px 24px;font-family:var(--f-mono);font-weight:500}
.example dt{color:var(--muted);font-family:var(--f-body)}
.example dd{margin:0}
.example .res{color:var(--accent-dark);font-weight:700}
.example p{margin-top:18px;color:var(--muted)}
.example .btn{margin-top:20px}
.dir{display:grid;grid-template-columns:repeat(3,1fr);gap:36px 40px}
.dir-group{border-top:2px solid var(--ink);padding-top:14px}
.dir-group h3{font-size:1.15rem}
.dir-group p{margin-top:4px;color:var(--muted);font-size:.95rem}
.dir-group ul{margin-top:12px;display:grid;gap:6px}
.dir-group a{font-weight:600;text-decoration:none}
.dir-group a:hover{text-decoration:underline}
.dir-group .soon{margin-top:12px;color:var(--muted);font-size:.92rem}
.facts{display:grid;grid-template-columns:repeat(4,1fr);gap:0 32px}
.facts div{border-top:1px solid var(--line);padding-top:16px}
.facts strong{display:block;font:700 1.15rem var(--f-head)}
.facts span{display:block;margin-top:4px;color:var(--muted);font-size:.98rem}
.prose{max-width:46rem}
.prose h2{margin-bottom:14px}
.prose p+p,.prose p+ul{margin-top:14px}
.prose ul{list-style:disc;padding-left:22px;display:grid;gap:6px}









/* pages */
.page-head{padding:44px 0 24px}
.page-head h1,.page-head .lead{text-align:center}
.page-head .lead{margin:16px auto 0;max-width:40rem;font-size:1.08rem;line-height:1.6;color:var(--muted);text-wrap:balance}
.crumbs ol{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px;font-size:.9rem;color:var(--muted)}
.crumbs li+li::before{content:"/";margin-right:6px;color:var(--line)}
.crumbs a{color:var(--muted)}
.crumbs p{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px;font-size:.9rem;color:var(--muted)}
.crumbs .separator{color:var(--muted);opacity:.6}
.page-body{padding:8px 0 80px}
.entry-content{max-width:none}
.entry-content>*+*{margin-top:1.1em}
.entry-content h2{margin-top:2em}
.entry-content h3{margin-top:1.6em}
.entry-content ul,.entry-content ol{padding-left:1.3em;list-style:revert;display:grid;gap:.4em}
.entry-content table{width:100%;border-collapse:collapse;font-size:.98rem}
.entry-content th,.entry-content td{padding:10px 12px;border:1px solid var(--line);text-align:left}
.entry-content th{background:var(--accent-tint)}
.entry-content blockquote{padding:4px 0 4px 18px;border-left:3px solid var(--accent);color:var(--muted)}
.entry-content code,.entry-content pre{font-family:var(--f-mono);font-size:.92em;background:var(--accent-tint);border-radius:6px}
.entry-content code{padding:2px 6px}
.entry-content pre{padding:14px;overflow:auto}
.entry-content figure{margin-inline:0}
.entry-content img{border-radius:var(--r-ctl)}
.entry-wide{max-width:var(--wrap)}
.hub-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:8px}
.hub-card{display:block;padding:20px;border:1px solid var(--line);border-radius:var(--r-panel);background:var(--surface);text-decoration:none;color:var(--ink)}
.hub-card:hover{border-color:var(--accent)}
.hub-card strong{display:block;font:700 1.1rem var(--f-head)}
.hub-card span{display:block;margin-top:4px;color:var(--muted);font-size:.95rem}
.hub-group{margin-top:40px}
.hub-empty{padding:24px;border:1px dashed var(--line);border-radius:var(--r-panel);background:var(--surface);max-width:46rem}
.hub-empty p+p{margin-top:10px}
.post-list{display:grid;gap:16px;max-width:46rem}
.post-list article{padding:20px;border:1px solid var(--line);border-radius:var(--r-panel);background:var(--surface)}
.post-list h2{font-size:1.3rem}
.post-list h2 a{color:var(--ink);text-decoration:none}
.post-list h2 a:hover{color:var(--accent)}
.pagination{margin-top:28px;display:flex;gap:8px}
.pagination .page-numbers{padding:8px 14px;border:1px solid var(--line);border-radius:var(--r-ctl);background:var(--surface);text-decoration:none;color:var(--ink)}
.pagination .current{background:var(--accent);border-color:var(--accent);color:#fff}

/* footer */
.site-footer{margin-top:0;background:var(--ink);color:#DCE8E0;padding:56px 0 28px}
.site-footer a{color:#DCE8E0;text-decoration:none}
.site-footer a:hover{color:var(--panel-accent);text-decoration:underline}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px}
.site-footer .brand{color:#fff}
.site-footer .brand .pro{background:var(--panel-accent);color:var(--ink)}
.site-footer p{margin-top:14px;max-width:30em;color:color-mix(in srgb,#DCE8E0 78%,var(--ink))}
.site-footer h2{font:700 .95rem var(--f-head);color:#fff;letter-spacing:.02em;margin-bottom:12px}
.site-footer ul{display:grid;gap:8px}
.foot-bottom{margin-top:40px;padding-top:20px;border-top:1px solid color-mix(in srgb,#DCE8E0 22%,var(--ink));font-size:.9rem;color:color-mix(in srgb,#DCE8E0 70%,var(--ink))}

@media (max-width:980px){
  .hero-grid,.split{grid-template-columns:1fr;gap:36px}
  .hero{padding-top:36px}
  .bento{grid-template-columns:1fr}
  .cell-tests{grid-row:auto}
  .dir,.hub-grid{grid-template-columns:repeat(2,1fr)}
  .facts{grid-template-columns:repeat(2,1fr);gap:24px 32px}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex;margin-left:auto}
  .nav{display:none;position:absolute;left:0;right:0;top:100%;margin:0;background:var(--surface);border-bottom:1px solid var(--line);padding:10px 20px 18px;max-height:calc(100vh - 68px);overflow:auto}
  .nav.is-open{display:block}
  .nav .menu{flex-direction:column;align-items:stretch;gap:0}
  .nav a{padding:13px 8px;border-radius:0;border-bottom:1px solid var(--line)}
  .nav .menu-item-has-children>a::after{display:none}
  .nav .sub-menu{display:block;position:static;border:0;padding:0 0 0 14px;min-width:0}
  .nav .sub-menu a{font-weight:500;font-size:.95rem}
  .bar .search-toggle{order:3}
}
@media (max-width:640px){
  body{font-size:16px}
  .section{padding:52px 0}
  .dir,.hub-grid,.facts,.foot-grid{grid-template-columns:1fr}
  .cell,.cell-tests{padding:24px}
  .calc{padding:10px}
  .key{min-height:44px}
  .search-form{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
@media print{.site-header,.site-footer,.search-panel{display:none}}

/* faq accordion */
.faq{display:grid;gap:12px;max-width:none;margin-top:18px}
.faq details{background:var(--surface,#fff);border:1px solid var(--line);border-radius:var(--r-ctl,14px);padding:0;transition:border-color .15s,box-shadow .15s}
.faq details[open]{border-color:color-mix(in srgb,var(--accent) 35%,var(--line));box-shadow:0 1px 0 rgba(18,32,26,.03)}
.faq summary{cursor:pointer;font:700 1.08rem/1.4 var(--f-head);color:var(--ink);list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;border-radius:inherit}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";flex:none;width:30px;height:30px;border-radius:50%;background:var(--accent-tint);color:var(--accent-dark,var(--accent));display:grid;place-items:center;font:500 1.3rem/1 var(--f-body);transition:background .15s,color .15s}
.faq details[open] summary::after{content:"\2212";background:var(--accent);color:#fff}
.faq summary:hover{color:var(--accent-dark,var(--accent))}
.faq summary:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.faq details>p,.faq-a{padding:0 22px 20px;margin:0;color:var(--muted);line-height:1.65}
.faq-a p{margin:0;max-width:none}
.faq details>p{max-width:none}
@media (max-width:640px){.faq summary{padding:15px 16px;font-size:1rem}.faq details>p,.faq-a{padding:0 16px 16px}}

/* homepage content */
.hero-grid>*{min-width:0}
.hero-copy{display:flex;flex-direction:column;align-items:flex-start}
.hero .lede{max-width:36em}
.eyebrow{font:700 .82rem/1.3 var(--f-body);letter-spacing:.06em;text-transform:uppercase;color:var(--accent-dark);background:var(--accent-tint);padding:7px 12px;border-radius:999px;margin-bottom:18px}
.ticks{display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:22px;font-weight:600;font-size:.95rem}
.ticks li{display:flex;align-items:center;gap:8px}
.ticks li::before{content:"";width:18px;height:18px;border-radius:50%;background:var(--accent) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.5l2.6 2.6L12 5.6' fill='none' stroke='%23fff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/14px no-repeat;flex:none}
.hero-tools{margin-top:34px;padding-top:22px;border-top:1px solid var(--line);width:100%}
.mini-title{font:700 .85rem var(--f-body);letter-spacing:.05em;text-transform:uppercase;color:var(--muted);margin-bottom:12px}
.chip-links{display:flex;flex-wrap:wrap;gap:10px}
.chip-links a{display:inline-flex;align-items:center;min-height:38px;padding:0 16px;border:1px solid var(--line);border-radius:999px;background:var(--surface);font-weight:600;font-size:.95rem;text-decoration:none;color:var(--ink);transition:border-color .15s,color .15s}
.chip-links a:hover{border-color:var(--accent);color:var(--accent-dark)}
.pop-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.pop-card{display:flex;flex-direction:column;gap:8px;padding:22px;border:1px solid var(--line);border-radius:var(--r-panel);background:var(--surface);text-decoration:none;color:var(--ink);transition:border-color .15s,transform .15s}
.pop-card:hover{border-color:var(--accent);transform:translateY(-2px)}
.pop-card h3{font-size:1.1rem;color:var(--accent-dark)}
.pop-card p{color:var(--muted);font-size:.96rem;line-height:1.5}
.test-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.test-col{padding:26px;border:1px solid var(--line);border-radius:var(--r-panel);background:var(--bg)}
.test-col h3{font-size:1.2rem}
.test-col>p{margin-top:6px;color:var(--muted);font-size:.96rem}
.test-col ul{margin-top:14px;display:grid;gap:7px}
.test-col a{font-weight:600;text-decoration:none}
.test-col a:hover{text-decoration:underline}
.prose h3{margin-top:22px;margin-bottom:8px}
@media (max-width:1100px){.pop-grid{grid-template-columns:repeat(2,1fr)}.test-cols{grid-template-columns:1fr}}
@media (max-width:640px){.pop-grid{grid-template-columns:1fr}.hero-tools{margin-top:26px}}

/* homepage visuals */
.ico{display:inline-grid;place-items:center;width:44px;height:44px;border-radius:12px;background:var(--accent-tint);color:var(--accent-dark);flex:none}
.ico-svg{display:block}
.ico-inv{background:rgba(255,255,255,.16);color:#fff}
.cell .ico{margin-bottom:4px}
.statbar{background:var(--surface);border-block:1px solid var(--line)}
.statbar-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.statbar-grid>div{display:grid;grid-template-columns:44px 1fr;grid-template-rows:auto auto;column-gap:14px;align-items:center;padding:24px 20px;border-left:1px solid var(--line)}
.statbar-grid>div:first-child{border-left:0;padding-left:0}
.statbar-grid .ico{grid-row:span 2}
.statbar-grid strong{font:800 1.9rem/1 var(--f-head);color:var(--ink)}
.statbar-grid span:last-child{color:var(--muted);font-size:.95rem}
.pop-card .ico{margin-bottom:4px}
.facts div .ico{margin-bottom:12px}
.facts div .ico+strong{margin-top:0}
.chart{margin-top:28px;padding:26px;border:1px solid var(--line);border-radius:var(--r-panel);background:var(--bg)}
.chart-title{font-size:1.1rem;margin-bottom:16px}
.bar-row{display:grid;grid-template-columns:minmax(150px,240px) 1fr 36px;gap:14px;align-items:center;margin-top:12px}
.bar-label{font-weight:600;font-size:.96rem}
.bar-track{height:14px;border-radius:999px;background:var(--accent-tint);overflow:hidden}
.bar-fill{display:block;height:100%;border-radius:999px;background:var(--accent)}
.bar-val{font:700 1rem var(--f-head);text-align:right}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-panel);background:var(--surface)}
.data-table{width:100%;border-collapse:collapse;font-size:1rem}
.data-table caption{caption-side:top;text-align:left;font:700 1.05rem var(--f-head);padding:18px 20px 6px}
.data-table th,.data-table td{padding:14px 20px;text-align:left;border-bottom:1px solid var(--line)}
.data-table thead th{background:var(--accent-tint);color:var(--accent-dark);font:700 .85rem var(--f-body);letter-spacing:.04em;text-transform:uppercase}
.data-table tbody tr:last-child td{border-bottom:0}
.data-table tbody tr:hover{background:var(--bg)}
.data-table td:last-child{font-weight:700;color:var(--accent-dark)}
.data-table code{background:var(--accent-tint);padding:2px 7px;border-radius:6px}
.order-flow{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-bottom:32px;counter-reset:none}
.order-flow li{position:relative;display:flex;align-items:center;gap:12px;padding:16px 20px;background:var(--bg);border:1px solid var(--line);margin-left:-1px}
.order-flow li:first-child{border-radius:var(--r-ctl) 0 0 var(--r-ctl);margin-left:0}
.order-flow li:last-child{border-radius:0 var(--r-ctl) var(--r-ctl) 0}
.order-flow strong{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--accent);color:#fff;font:700 1rem var(--f-head);flex:none}
.order-flow span{font-weight:700}
.cap-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:40px;align-items:start}
.cap-text h3{margin-top:0;margin-bottom:8px}
.cap-text h3+p{color:var(--muted)}
.cap-text h3:not(:first-child){margin-top:26px}
.cap-text ul{list-style:disc;padding-left:22px;display:grid;gap:8px}
.cap-text code{background:var(--accent-tint);padding:2px 7px;border-radius:6px}
@media (max-width:980px){.statbar-grid{grid-template-columns:repeat(2,1fr)}.statbar-grid>div:nth-child(3){border-left:0;padding-left:0}.cap-grid{grid-template-columns:1fr;gap:28px}.order-flow{grid-template-columns:repeat(2,1fr)}.order-flow li:nth-child(2){border-radius:0 var(--r-ctl) 0 0}.order-flow li:nth-child(3){border-radius:0 0 0 var(--r-ctl);margin-left:0;margin-top:-1px}.order-flow li:last-child{border-radius:0 0 var(--r-ctl) 0;margin-top:-1px}.order-flow li:first-child{border-radius:var(--r-ctl) 0 0 0}}
@media (max-width:640px){.bar-row{grid-template-columns:1fr 36px;gap:6px 12px}.bar-label{grid-column:1/-1}.statbar-grid>div{padding:18px 12px}.statbar-grid strong{font-size:1.5rem}.data-table th,.data-table td{padding:12px 14px}}