/* LZ Tool Box design system
   Layout: asymmetric split hero (copy + live device panel), 3-cell category bento, one filterable tool directory.
   Colour: neutral zinc base + ONE accent (signal orange). Type: Geist (UI + display), Geist Mono (numbers, keys, code).
   Radius rule: controls (buttons, inputs, tabs) 10px; cards and panels 16px; chips and tags full pill. */

@font-face{font-family:"Bricolage Grotesque";src:url(../fonts/bricolage.woff2) format("woff2");font-weight:200 800;font-stretch:75% 100%;font-display:swap}
@font-face{font-family:"Geist";src:url(../fonts/geist.woff2) format("woff2");font-weight:100 900;font-display:swap}
@font-face{font-family:"Geist Mono";src:url(../fonts/geist-mono.woff2) format("woff2");font-weight:100 900;font-display:swap}

:root{
  --bg:#f4f4f5;--surface:#fcfcfd;--surface-2:#ececef;--surface-3:#dedee3;
  --text:#18181b;--muted:#55555e;--border:#e2e2e7;--line:#d4d4da;
  --accent:#e8622c;--accent-hover:#d4541f;--accent-ink:#18181b;--accent-soft:#fbe7dd;--accent-fg:#b0420f;
  --link:#b0420f;--ink-tile:#18181b;--ink-tile-text:#f4f4f5;--ink-tile-muted:#a1a1aa;
  --header-bg:rgba(244,244,245,.85);
  --ok:#147a43;--ok-soft:#ddf4e6;--ok-line:#8fd6ab;--warn:#9a5b00;--warn-soft:#fdf0d5;--bad:#bf2238;--bad-soft:#fde3e7;
  --shadow:0 1px 2px rgba(24,24,27,.04),0 8px 24px -12px rgba(24,24,27,.14);
  --shadow-sm:0 1px 2px rgba(24,24,27,.06);
  --r-ctl:10px;--r-card:16px;
  --maxw:1200px;
  --f-display:"Bricolage Grotesque","Geist",system-ui,sans-serif;
  --f-sans:"Geist",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --f-mono:"Geist Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --ease:cubic-bezier(.16,1,.3,1);
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0b0b0e;--surface:#141418;--surface-2:#1c1c22;--surface-3:#2a2a32;
    --text:#f4f4f5;--muted:#a1a1aa;--border:#26262d;--line:#33333c;
    --accent:#ff7a45;--accent-hover:#ff905f;--accent-ink:#18181b;--accent-soft:#3a1e12;--accent-fg:#ff9466;
    --link:#ff9466;--ink-tile:#1f1f26;--ink-tile-text:#f4f4f5;--ink-tile-muted:#a1a1aa;
    --header-bg:rgba(11,11,14,.82);
    --ok:#4ade80;--ok-soft:#10301f;--ok-line:#1f6b3d;--warn:#fbbf24;--warn-soft:#33270b;--bad:#ff8095;--bad-soft:#3d1520;
    --shadow:0 1px 2px rgba(0,0,0,.4);--shadow-sm:none;color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#0b0b0e;--surface:#141418;--surface-2:#1c1c22;--surface-3:#2a2a32;
  --text:#f4f4f5;--muted:#a1a1aa;--border:#26262d;--line:#33333c;
  --accent:#ff7a45;--accent-hover:#ff905f;--accent-ink:#18181b;--accent-soft:#3a1e12;--accent-fg:#ff9466;
  --link:#ff9466;--ink-tile:#1f1f26;--ink-tile-text:#f4f4f5;--ink-tile-muted:#a1a1aa;
  --header-bg:rgba(11,11,14,.82);
  --ok:#4ade80;--ok-soft:#10301f;--ok-line:#1f6b3d;--warn:#fbbf24;--warn-soft:#33270b;--bad:#ff8095;--bad-soft:#3d1520;
  --shadow:0 1px 2px rgba(0,0,0,.4);--shadow-sm:none;color-scheme:dark;
}

/* ============ Base ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:84px}
body{margin:0;font-family:var(--f-sans);font-size:16px;line-height:1.6;color:var(--text);background:var(--bg);overflow-x:hidden;-webkit-font-smoothing:antialiased;font-feature-settings:"ss01"}
img,svg,canvas,video{max-width:100%}
a{color:var(--link);text-underline-offset:3px;text-decoration-thickness:1px}
h1,h2,h3{line-height:1.12;margin:0 0 .5em;font-weight:650;letter-spacing:-.025em;text-wrap:balance}
h1{font-size:clamp(2rem,4.2vw,2.9rem);font-weight:700;letter-spacing:-.035em}
h2{font-size:clamp(1.4rem,2.4vw,1.75rem);margin-top:1.8em}
h3{font-size:1.06rem;letter-spacing:-.01em}
p{margin:0 0 1em}
code,kbd,.mono{font-family:var(--f-mono)}
code,kbd{font-size:.86em}
code{background:var(--surface-2);padding:.12em .4em;border-radius:6px}
kbd{background:var(--surface);border:1px solid var(--line);border-bottom-width:2px;border-radius:6px;padding:.05em .45em;color:var(--text)}
.ico{width:22px;height:22px;flex:none;display:block}
.container{max-width:var(--maxw);margin:0 auto;padding-inline:24px}
@media (max-width:640px){.container{padding-inline:16px}}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.sr-only:focus{position:fixed;left:12px;top:12px;width:auto;height:auto;clip:auto;z-index:100;background:var(--surface);padding:8px 14px;border-radius:var(--r-ctl)}
[hidden]{display:none!important}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
::selection{background:var(--accent-soft)}

/* ============ Header ============ */
.site-header{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:var(--header-bg);backdrop-filter:saturate(1.4) blur(14px);-webkit-backdrop-filter:saturate(1.4) blur(14px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;height:64px;position:relative;gap:8px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.08rem;color:var(--text);text-decoration:none;letter-spacing:-.02em}
.logo-mark{width:30px;height:30px;flex:none}
.logo-body{fill:#18181b}.logo-handle{stroke:#18181b}
:root[data-theme="dark"] .logo-body{fill:#2a2a32}:root[data-theme="dark"] .logo-handle{stroke:#a1a1aa}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .logo-body{fill:#2a2a32}:root:not([data-theme="light"]) .logo-handle{stroke:#a1a1aa}}
.wordmark b{font-weight:800}
.site-nav{display:flex;gap:2px;margin-left:auto;height:100%}
.nav-item{position:relative;display:flex;align-items:center}
.nav-link{position:relative;display:inline-flex;align-items:center;gap:4px;padding:8px 10px 8px 12px;color:var(--muted);text-decoration:none;font-weight:550;font-size:.94rem;border-radius:var(--r-ctl)}
.nav-link .ico{width:15px;height:15px;transition:transform .2s var(--ease)}
.nav-link:hover,.nav-item:focus-within .nav-link{color:var(--text)}
.nav-link[aria-current="page"]{color:var(--text)}
.nav-link[aria-current="page"]::after{content:"";position:absolute;left:12px;right:12px;bottom:-13px;height:2px;background:var(--accent);border-radius:2px}
.mega{position:absolute;top:100%;left:50%;transform:translate(-50%,6px);padding-top:10px;opacity:0;visibility:hidden;transition:opacity .18s,transform .22s var(--ease),visibility 0s .2s;z-index:60}
.nav-item:hover .mega,.nav-item:focus-within .mega{opacity:1;visibility:visible;transform:translate(-50%,0);transition:opacity .18s .06s,transform .22s var(--ease) .06s,visibility 0s .06s}
.nav-item:hover .nav-link .ico,.nav-item:focus-within .nav-link .ico{transform:rotate(180deg)}
.mega-box{width:min(640px,calc(100vw - 48px));background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);box-shadow:0 24px 60px -24px rgba(24,24,27,.35),0 1px 2px rgba(24,24,27,.05);padding:10px}
.mega-head{display:flex;justify-content:space-between;align-items:center;padding:6px 10px 10px;border-bottom:1px solid var(--border);margin-bottom:6px}
.mega-head span{font:500 .8rem var(--f-mono);color:var(--muted)}
.mega-head a{display:inline-flex;align-items:center;gap:4px;font-size:.86rem;font-weight:600;color:var(--accent-fg);text-decoration:none}
.mega-head a .ico{width:15px;height:15px}
.mega-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:2px}
.mega-grid a{display:flex;gap:12px;align-items:flex-start;padding:9px 10px;border-radius:var(--r-ctl);color:var(--text);text-decoration:none;transition:background .15s}
.mega-grid a:hover,.mega-grid a:focus-visible{background:var(--surface-2)}
.mega-grid .ic{width:34px;height:34px;border-radius:9px;background:var(--surface-2);display:flex;align-items:center;justify-content:center;flex:none;transition:background .15s,color .15s}
.mega-grid a:hover .ic{background:var(--accent);color:var(--accent-ink)}
.mega-grid .ico{width:18px;height:18px}
.mega-grid b{display:block;font-weight:600;font-size:.92rem;line-height:1.3}
.mega-grid small{display:block;color:var(--muted);font-size:.8rem;line-height:1.35;margin-top:2px}
.header-actions{display:flex;gap:6px;margin-left:12px}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:var(--r-ctl);border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;transition:background .15s,transform .1s}
.icon-btn:hover{background:var(--surface-2)}
.icon-btn:active{transform:scale(.96)}
.icon-btn svg{width:19px;height:19px;display:block}
.t-moon{display:none}
:root[data-theme="dark"] .t-sun{display:none}:root[data-theme="dark"] .t-moon{display:block}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .t-sun{display:none}:root:not([data-theme="light"]) .t-moon{display:block}}
.search-btn{display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 8px 0 12px;border-radius:var(--r-ctl);border:1px solid var(--border);background:var(--surface);color:var(--muted);font:inherit;font-size:.9rem;font-weight:500;cursor:pointer;min-width:210px;transition:border-color .15s}
.search-btn:hover{border-color:var(--line);color:var(--text)}
.search-btn svg{width:17px;height:17px;flex:none}
.search-btn span{flex:1;text-align:left}
.search-btn kbd{font-size:.72rem;color:var(--muted)}
#nav-toggle{display:none}
@media (max-width:1024px){.search-btn{min-width:0;width:40px;padding:0;justify-content:center}.search-btn span,.search-btn kbd{display:none}}
@media (max-width:760px){
  #nav-toggle{display:inline-flex}
  .header-actions{margin-left:auto}
  .site-nav{display:none;position:absolute;top:64px;left:-16px;right:-16px;background:var(--surface);flex-direction:column;padding:8px 16px 16px;border-bottom:1px solid var(--border);box-shadow:var(--shadow)}
  .site-nav.open{display:flex}
  .site-nav{height:auto}
  .nav-link{padding:12px;width:100%}
  .nav-link .ico,.mega{display:none}
  .nav-link[aria-current="page"]::after{display:none}
  .nav-link[aria-current="page"]{background:var(--surface-2)}
}

/* ============ Search palette ============ */
.palette{border:0;padding:0;background:transparent;width:min(620px,calc(100vw - 32px));max-height:min(70vh,560px);margin:12vh auto auto;color:var(--text);overflow:visible}
.palette::backdrop{background:rgba(9,9,11,.5);backdrop-filter:blur(3px)}
.palette-box{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);box-shadow:0 30px 80px -20px rgba(0,0,0,.45);overflow:hidden;display:flex;flex-direction:column;max-height:min(70vh,560px)}
.palette-input{display:flex;align-items:center;gap:12px;padding:6px 16px;border-bottom:1px solid var(--border)}
.palette-input svg{width:20px;height:20px;color:var(--muted);flex:none}
.palette-input input{flex:1;border:0!important;box-shadow:none!important;background:transparent;font-size:1.05rem;min-height:52px;padding:0}
.palette-input kbd{font-size:.72rem;color:var(--muted)}
.palette-list{list-style:none;margin:0;padding:8px;overflow-y:auto}
.palette-list a{display:flex;align-items:center;gap:12px;padding:9px 10px;border-radius:var(--r-ctl);color:var(--text);text-decoration:none}
.palette-list li[aria-selected="true"] a,.palette-list a:hover{background:var(--surface-2)}
.palette-list .ic{width:36px;height:36px;border-radius:var(--r-ctl);background:var(--surface-2);color:var(--text);display:flex;align-items:center;justify-content:center;flex:none}
.palette-list li[aria-selected="true"] .ic{background:var(--accent);color:var(--accent-ink)}
.palette-list .ic .ico{width:19px;height:19px}
.palette-list b{display:block;font-weight:600;font-size:.96rem}
.palette-list small{display:block;color:var(--muted);font-size:.84rem;line-height:1.35}
.palette-empty{padding:18px 12px;color:var(--muted)}

/* ============ Footer ============ */
.site-footer{margin-top:96px;border-top:1px solid var(--border);padding-block:48px 28px;font-size:.93rem;color:var(--muted)}
.footer-grid{display:grid;grid-template-columns:1.3fr repeat(4,minmax(0,1fr));gap:32px}
.footer-grid h3{font-size:.9rem;font-weight:600;color:var(--text);margin-bottom:.9em;letter-spacing:0}.footer-grid h3 a{color:var(--text)}
.foot-about{margin:14px 0 16px;max-width:34ch}
.foot-cta{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--text)!important}.foot-cta .ico{width:16px;height:16px;color:var(--accent-fg)}
.footer-grid ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.footer-grid a{color:var(--muted);text-decoration:none}
.footer-grid a:hover{color:var(--text)}
.foot-about{margin-top:12px;max-width:34ch}
.footer-bottom{margin-top:36px;padding-top:18px;border-top:1px solid var(--border);font-size:.85rem;display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px 20px}
.foot-links{display:flex;flex-wrap:wrap;gap:6px 18px}
.foot-links a{color:var(--muted)}
.foot-links a:hover{color:var(--text)}
@media (max-width:960px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-grid>div:first-child{grid-column:1/-1}}
@media (max-width:480px){.footer-grid{grid-template-columns:1fr}}

/* ============ Buttons & forms ============ */
.btn{font:inherit;font-weight:600;font-size:.95rem;display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:8px 18px;border-radius:var(--r-ctl);border:1px solid var(--line);background:var(--surface);color:var(--text);cursor:pointer;text-decoration:none;white-space:nowrap;transition:background .15s,border-color .15s,transform .1s var(--ease)}
.btn:hover{background:var(--surface-2)}
.btn:active{transform:scale(.98)}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}
.btn-primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover)}
.btn-lg{min-height:52px;padding:10px 26px;font-size:1.02rem}
.btn-sm{min-height:34px;padding:4px 12px;font-size:.86rem}
.btn .ico{width:18px;height:18px}
input[type=text],input[type=number],input[type=search],input:not([type]),select,textarea{
  font:inherit;color:var(--text);background:var(--surface);border:1px solid var(--line);border-radius:var(--r-ctl);padding:9px 12px;min-height:44px;max-width:100%;transition:border-color .15s,box-shadow .15s}
textarea{width:100%;resize:vertical;line-height:1.5}
input::placeholder,textarea::placeholder{color:var(--muted);opacity:.85}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
select{cursor:pointer}
input[type=range]{accent-color:var(--accent);width:100%}
input[type=checkbox],input[type=radio]{accent-color:var(--accent);width:18px;height:18px;vertical-align:-3px}
.seg,.tabs{display:inline-flex;padding:3px;gap:2px;border-radius:calc(var(--r-ctl) + 3px);background:var(--surface-2);flex-wrap:wrap}
.seg button,.tabs button{font:inherit;font-weight:600;font-size:.9rem;border:0;background:none;color:var(--muted);padding:7px 14px;cursor:pointer;min-height:36px;border-radius:var(--r-ctl);transition:color .15s,background .15s}
.seg button:hover,.tabs button:hover{color:var(--text)}
.seg button[aria-pressed="true"],.tabs button[aria-selected="true"]{background:var(--surface);color:var(--text);box-shadow:var(--shadow-sm),0 0 0 1px var(--border)}
.tabs{margin-bottom:18px}
.tool-bar{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:16px}
.tool-bar .spacer{flex:1}
.inline-label{display:inline-flex;align-items:center;gap:8px;font-size:.93rem;font-weight:550}
.fields{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.field{min-width:0}
.field label,.field .label{display:block;font-weight:600;font-size:.9rem;margin-bottom:6px}
.field .help{font-size:.83rem;color:var(--muted);margin-top:5px}
.input-unit{display:flex}
.input-unit input{flex:1;min-width:0;border-top-right-radius:0;border-bottom-right-radius:0}
.input-unit select{border-top-left-radius:0;border-bottom-left-radius:0;border-left:0;background:var(--surface-2);flex:none;width:auto;font-weight:600}
.input-unit .unit{display:flex;align-items:center;padding:0 14px;border:1px solid var(--line);border-left:0;border-radius:0 var(--r-ctl) var(--r-ctl) 0;background:var(--surface-2);color:var(--muted);font-size:.93rem;font-weight:600}
.field input,.field select:not(.input-unit select){width:100%}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.hint{color:var(--muted);font-size:.93rem;margin:0 0 14px}
.check{display:flex;gap:10px;align-items:flex-start;font-size:.94rem;margin:12px 0}

/* ============ Page structure ============ */
main{padding-top:20px}
.crumbs{font-size:.88rem;color:var(--muted);margin:0 0 20px;display:flex;flex-wrap:wrap;align-items:center;gap:4px}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{color:var(--text);text-decoration:underline}
.crumbs span[aria-hidden]{opacity:.5;margin-inline:4px}
.lede{font-size:1.08rem;color:var(--muted);max-width:62ch;margin-bottom:0}
.lede p{margin:0}
.tool-head{display:grid;grid-template-columns:auto minmax(0,1fr);gap:18px;align-items:start;margin-bottom:14px}
.tool-head h1{margin-bottom:.2em}
.tool-icon{width:56px;height:56px;border-radius:var(--r-card);background:var(--ink-tile);color:var(--ink-tile-text);display:flex;align-items:center;justify-content:center}
.tool-icon .ico{width:28px;height:28px}
@media (max-width:640px){.tool-head{gap:14px}.tool-icon{width:46px;height:46px}.tool-icon .ico{width:23px;height:23px}}
.trust{list-style:none;display:flex;flex-wrap:wrap;gap:6px 18px;padding:0;margin:0 0 20px;font-size:.88rem;color:var(--muted)}
.trust li{display:flex;align-items:center;gap:6px}
.trust .ico{width:16px;height:16px;color:var(--ok)}
.tool{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);padding:24px;box-shadow:var(--shadow);position:relative}
@media (max-width:640px){.tool{padding:16px}}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;margin-top:12px}
@media (max-width:960px){.layout{grid-template-columns:1fr;gap:12px}}
.prose{max-width:70ch;min-width:0}
.prose h2{margin-top:1.9em}
.prose li{margin:.4em 0}
.prose ol,.prose ul{padding-left:1.3em}
.aside-card{position:sticky;top:88px;margin-top:2.6em}
.aside-card h2{font-size:.92rem;font-weight:600;margin:0 0 10px;letter-spacing:0;color:var(--muted)}
.aside-list{list-style:none;padding:0;margin:0;display:grid;gap:2px}
.aside-list a{display:flex;gap:12px;align-items:center;padding:8px;margin-inline:-8px;border-radius:var(--r-ctl);color:var(--text);text-decoration:none;font-weight:600;font-size:.94rem;line-height:1.3;transition:background .15s}
.aside-list a:hover{background:var(--surface)}
.aside-list a>span:last-child{min-width:0}
.aside-list small{display:block;font-weight:400;color:var(--muted);font-size:.8rem;margin-top:2px;line-height:1.35}
.aside-list .ic{width:36px;height:36px;border-radius:var(--r-ctl);background:var(--surface-2);color:var(--text);display:flex;align-items:center;justify-content:center;flex:none}
.aside-list .ico{width:18px;height:18px}
.aside-more{display:inline-block;margin-top:12px;font-size:.9rem;font-weight:600}
.note{background:var(--warn-soft);border-radius:var(--r-card);padding:12px 16px;font-size:.94rem;margin:1.2em 0;color:var(--text)}
.note strong{color:var(--warn)}
.ad-slot{margin:24px 0;text-align:center}
.ad-slot:empty{display:none}
.quick-answer{margin-top:2.2em;padding:18px 20px;border-radius:var(--r-card);background:var(--accent-soft);border:1px solid var(--border)}
.quick-answer h2{font-size:.86rem;font-weight:650;margin:0 0 6px;color:var(--accent-fg);letter-spacing:0}
.quick-answer p{margin:0;font-size:1.03rem}
.steps{list-style:none;padding:0!important;counter-reset:st}
.steps li{counter-increment:st;position:relative;padding-left:42px;margin:.85em 0}
.steps li::before{content:counter(st);position:absolute;left:0;top:0;width:28px;height:28px;border-radius:50%;background:var(--surface-2);color:var(--text);font:600 .82rem/28px var(--f-mono);text-align:center}
.tips{list-style:none;padding:0!important;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.tips li{margin:0!important;padding:16px;border-radius:var(--r-card);background:var(--surface);border:1px solid var(--border);font-size:.95rem}
.tips li:first-child{grid-column:1/-1}
@media (max-width:640px){.tips{grid-template-columns:1fr}}

/* FAQ */
.faq{display:grid;gap:8px}
.faq details{border:1px solid var(--border);border-radius:var(--r-card);background:var(--surface);transition:border-color .15s}
.faq details[open]{border-color:var(--line)}
.faq summary{cursor:pointer;padding:15px 18px;font-weight:600;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";flex:none;width:9px;height:9px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:rotate(45deg) translateY(-3px);transition:transform .25s var(--ease)}
.faq details[open] summary::after{transform:rotate(-135deg) translateY(-1px)}
.faq details>div{padding:0 18px 16px;color:var(--muted)}
.faq details>div p:last-child{margin-bottom:0}

/* Tables */
.table-wrap{overflow-x:auto;margin:1.2em 0;border:1px solid var(--border);border-radius:var(--r-card);background:var(--surface)}
table{width:100%;border-collapse:collapse;font-size:.93rem;font-variant-numeric:tabular-nums}
th,td{padding:10px 14px;text-align:left;white-space:nowrap}
tbody tr+tr td{border-top:1px solid var(--border)}
th{background:var(--surface-2);font-weight:600}

/* ============ Home ============ */
.hero{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,1fr);gap:56px;align-items:center;padding-block:48px 24px}
@media (max-width:960px){.hero{grid-template-columns:1fr;gap:32px;padding-top:24px}}
.hero h1{font-size:clamp(2.3rem,5vw,3.6rem);line-height:1.04;letter-spacing:-.045em;margin-bottom:.4em;max-width:14ch}
.hero .lede{font-size:1.12rem;max-width:46ch}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:28px}
.search{position:relative;flex:1 1 320px;max-width:440px}
.search svg{position:absolute;left:16px;top:50%;transform:translateY(-50%);width:20px;height:20px;color:var(--muted);pointer-events:none}
.search input[type=search]{width:100%;font-size:1rem;padding:14px 48px 14px 46px;min-height:54px;border-radius:var(--r-ctl);background:var(--surface);box-shadow:var(--shadow)}
.search input[type=search]::-webkit-search-cancel-button{-webkit-appearance:none}
.search-key{position:absolute;right:14px;top:50%;transform:translateY(-50%);color:var(--muted)}
@media (hover:none),(max-width:640px){.search-key{display:none}}

/* Live device panel */
.device{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--shadow);overflow:hidden}
.device-head{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:16px 20px;border-bottom:1px solid var(--border)}
.device-head h2{font-size:1rem;margin:0;letter-spacing:-.01em}
.device-head span{font-size:.84rem;color:var(--muted)}
.device-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}
.dv{padding:16px 20px;min-width:0;text-decoration:none;color:var(--text);transition:background .15s}
.dv:nth-child(odd){border-right:1px solid var(--border)}
.dv:nth-child(n+3){border-top:1px solid var(--border)}
a.dv:hover{background:var(--surface-2)}
.dv-label{display:flex;align-items:center;gap:6px;font-size:.82rem;color:var(--muted)}
.dv-label .ico{width:15px;height:15px}
.dv-value{display:block;font:600 1.5rem/1.2 var(--f-mono);letter-spacing:-.03em;margin-top:6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-variant-numeric:tabular-nums}
.dv-value small{font-size:.9rem;color:var(--muted);font-weight:500;margin-left:4px}
.dv-key{grid-column:1/-1;border-right:0!important;display:grid;grid-template-columns:auto minmax(0,1fr);gap:16px;align-items:center}
.keycap{min-width:64px;height:64px;padding:0 14px;border-radius:12px;border:1px solid var(--line);border-bottom-width:4px;background:var(--surface-2);display:flex;align-items:center;justify-content:center;font:600 1.3rem var(--f-mono);transition:transform .08s,background .15s,border-color .15s;text-transform:uppercase}
.keycap.hit{transform:translateY(2px);border-bottom-width:2px;background:var(--accent);border-color:var(--accent-hover);color:var(--accent-ink)}
.dv-key p{margin:0;font-size:.92rem;color:var(--muted)}
.dv-key p b{color:var(--text);font-weight:600}
.dv-foot{grid-column:1/-1;border-top:1px solid var(--border);padding:12px 20px;font-size:.82rem;color:var(--muted)}

.strip{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:22px}
.strip-items{display:contents}
.strip-label{font-size:.86rem;color:var(--muted);font-weight:500;margin-right:2px}
.chip{display:inline-flex;align-items:center;gap:7px;padding:5px 12px 5px 9px;border-radius:999px;background:var(--surface);border:1px solid var(--border);color:var(--text);text-decoration:none;font-weight:550;font-size:.85rem;transition:border-color .15s,transform .1s}
.chip .ico{width:15px;height:15px;color:var(--muted)}
.chip:hover{border-color:var(--accent)}
.chip:active{transform:scale(.98)}

/* Proof row */

/* Section heads */
.section-head{display:flex;flex-wrap:wrap;align-items:end;justify-content:space-between;gap:12px 24px;margin-bottom:22px}
.section-head h2{margin:0}
.section-head p,.dir-head p{margin:6px 0 0;color:var(--muted)}
.section-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:.93rem;color:var(--text);text-decoration:none;white-space:nowrap}
.section-link .ico{width:16px;height:16px;color:var(--accent-fg);transition:transform .2s var(--ease)}
.section-link:hover .ico{transform:translateX(3px)}

/* Showcase: real mini previews of the most used tools */
.showcase{margin-top:80px}
.show-grid{display:grid;grid-template-columns:minmax(0,1.35fr) repeat(2,minmax(0,1fr));gap:14px}
.show{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);color:var(--text);text-decoration:none;overflow:hidden;transition:border-color .2s,transform .25s var(--ease),box-shadow .25s}
.show:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--line)}
.show-lg{grid-row:span 2}
.show-pv{position:relative;flex:1;min-height:150px;display:flex;align-items:center;justify-content:center;padding:20px;background:var(--surface-2);border-bottom:1px solid var(--border);overflow:hidden}
.show-meta{padding:16px 18px 18px;display:flex;flex-direction:column}
.show-meta .show-tag{order:5;align-self:flex-end;margin-top:-20px}
.show-meta h3{margin-top:0}
.show-tag{display:inline-flex;align-items:center;gap:6px;font:500 .76rem var(--f-mono);color:var(--muted)}
.show-tag .ico{width:14px;height:14px}
.show h3{margin:0 0 4px;font-size:1.08rem}
.show-lg h3{font-size:1.35rem}
.show p{margin:0;color:var(--muted);font-size:.9rem;line-height:1.45}
.show-open{display:inline-flex;align-items:center;gap:6px;margin-top:12px;font-weight:600;font-size:.9rem}
.show-open .ico{width:16px;height:16px;color:var(--accent-fg);transition:transform .2s var(--ease)}
.show:hover .show-open .ico{transform:translateX(3px)}
@media (max-width:960px){.show-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.show-lg{grid-column:1/-1;grid-row:auto}}
@media (max-width:600px){.show-grid{grid-template-columns:1fr}}
.pv{width:100%}
/* keyboard */
.pv-kb{display:flex;flex-direction:column;align-items:center;gap:6px}
.kb-row{display:flex;gap:6px}
.kb-row:nth-child(2){margin-left:18px}.kb-row:nth-child(3){margin-left:46px}
.k{width:clamp(24px,3.1vw,38px);height:clamp(26px,3.1vw,38px);display:flex;align-items:center;justify-content:center;border-radius:8px;background:var(--surface);border:1px solid var(--line);border-bottom-width:3px;font:600 .8rem var(--f-mono);color:var(--muted);transition:background .2s,color .2s,transform .08s,border-color .2s}
.k.t{background:var(--accent-soft);border-color:var(--accent);color:var(--accent-fg)}
.k.hit{transform:translateY(2px);border-bottom-width:1px;background:var(--accent);color:var(--accent-ink)}
.k-space{width:min(240px,48vw);font-size:.72rem}
.pv-kb-note{margin-top:14px;font-size:.84rem;color:var(--muted)}
.pv-kb-note b{font-family:var(--f-mono);color:var(--text)}
@media (max-width:420px){.kb-row{gap:4px}.k{width:24px;height:28px;font-size:.7rem;border-radius:6px}.kb-row:nth-child(2){margin-left:10px}.kb-row:nth-child(3){margin-left:28px}.k.k-space{width:150px}}
/* typing */
.pv-type p{margin:0 0 14px;font:500 1rem/1.7 var(--f-mono);color:var(--muted)}
.pv-type .ok{color:var(--text)}
.pv-type .cur{background:var(--accent-soft);color:var(--accent-fg);border-radius:4px;padding:1px 3px;box-shadow:inset -2px 0 0 var(--accent)}
.pv-stats{display:flex;gap:22px}
.pv-stats span{display:flex;align-items:baseline;gap:6px;font-size:.8rem;color:var(--muted)}
.pv-stats b{font:600 1.5rem/1 var(--f-mono);color:var(--text);letter-spacing:-.04em}
/* reaction */
/* ohm */
.pv-formula{font:600 1.35rem var(--f-mono);letter-spacing:-.03em;margin-bottom:14px;text-align:center}
.pv-fields{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}
.pv-fields span{background:var(--surface);border:1px solid var(--border);border-radius:9px;padding:7px 9px;font:600 .9rem var(--f-mono);white-space:nowrap}
.pv-fields small{display:block;font:500 .68rem var(--f-sans);color:var(--muted);margin-bottom:2px}
.pv-fields .res{border-color:var(--accent);background:var(--accent-soft);color:var(--accent-fg)}
/* mic */
.pv-react{position:relative;height:118px;border-radius:12px;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fafafa;background:#c42a3d;font-weight:700;font-size:1.3rem;letter-spacing:-.02em}
.pv-react .pv-go,.pv-react .pv-ms{position:absolute;opacity:0}
.pv-react .pv-ms{font:600 1.7rem var(--f-mono);letter-spacing:-.04em}
.pv-bars{display:flex;align-items:flex-end;gap:3px;height:84px}
.pv-bars i{flex:1;height:var(--h);border-radius:3px;background:var(--line);transform-origin:bottom}
.pv-bars i:nth-child(n+8):nth-child(-n+20){background:var(--accent)}
.pv-mic-foot{display:flex;justify-content:space-between;margin-top:12px;font-size:.8rem;color:var(--muted)}
.pv-mic-foot b{font-family:var(--f-mono);color:var(--text)}

/* Directory, grouped by category */
.directory{margin-top:88px}
.dir-head{display:flex;flex-wrap:wrap;align-items:end;justify-content:space-between;gap:16px;margin-bottom:8px}
.dir-head h2{margin:0}
.dir-head .tabs{margin:0}
.dir-group{margin-top:32px}
.group-head{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:14px;align-items:center;padding-bottom:14px;margin-bottom:14px;border-bottom:1px solid var(--border)}
.group-head .ic{width:40px;height:40px;border-radius:var(--r-ctl);background:var(--ink-tile);color:var(--ink-tile-text);display:flex;align-items:center;justify-content:center}
.group-head .ico{width:20px;height:20px}
.group-head h3{margin:0;font-size:1.12rem}
.group-head p{margin:2px 0 0;font-size:.9rem;color:var(--muted)}
@media (max-width:600px){.group-head{grid-template-columns:auto minmax(0,1fr)}.group-head .section-link{grid-column:2}}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:12px}
.card{position:relative;display:grid;grid-template-columns:auto minmax(0,1fr);gap:14px;align-items:start;padding:16px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);color:var(--text);text-decoration:none;transition:border-color .2s,transform .2s var(--ease),box-shadow .2s}
.card:hover{border-color:var(--line);transform:translateY(-2px);box-shadow:var(--shadow)}
.card:active{transform:scale(.99)}
.card .ic{width:42px;height:42px;border-radius:var(--r-ctl);background:var(--surface-2);color:var(--text);display:flex;align-items:center;justify-content:center;transition:background .2s,color .2s}
.card:hover .ic{background:var(--accent);color:var(--accent-ink)}
.card .ico{width:21px;height:21px}
.card h3{font-size:1rem;font-weight:600;margin:1px 0 3px}
.card p{font-size:.88rem;color:var(--muted);margin:0;line-height:1.45}
.card h3{padding-right:16px}

/* More tools + explore (tool and category pages) */
.more{margin-top:72px;padding-top:40px;border-top:1px solid var(--border)}
.more .grid+.explore{margin-top:48px}
.explore h2{font-size:1.15rem;margin:0 0 14px}
.explore-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:12px}
.explore-card{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:16px;align-items:center;padding:18px;border-radius:var(--r-card);background:var(--ink-tile);color:var(--ink-tile-text);text-decoration:none;transition:transform .25s var(--ease),box-shadow .25s}
.explore-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.explore-card .ic{width:44px;height:44px;border-radius:var(--r-ctl);background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center}
.explore-card h3{margin:2px 0;font-size:1.05rem}
.explore-card p{margin:0;font-size:.86rem;color:var(--ink-tile-muted);line-height:1.45}
.explore-n{font:500 .74rem var(--f-mono);color:var(--ink-tile-muted)}
.cat-badge{width:52px;height:52px;border-radius:14px;background:var(--ink-tile);color:var(--ink-tile-text);display:flex;align-items:center;justify-content:center}
.cat-badge .ico{width:26px;height:26px}
.no-results{color:var(--muted);padding:24px 0}

/* Why: statement + facts */
.why{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:56px;margin-top:96px;align-items:start}
.why h2{margin:0;font-size:clamp(1.7rem,3vw,2.3rem);letter-spacing:-.035em;max-width:16ch}
.why-lede{color:var(--muted);margin-top:14px;max-width:44ch}
.facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 32px}
.fact .ico{width:22px;height:22px;color:var(--accent-fg);margin-bottom:10px}
.fact h3{margin:0 0 4px;font-size:1rem}
.fact p{margin:0;color:var(--muted);font-size:.94rem}
@media (max-width:860px){.why{grid-template-columns:1fr;gap:28px}.facts{grid-template-columns:1fr}}
.home-faq{margin:96px auto 0;max-width:760px}
.home-faq h2{margin-top:0}

/* Category page header */
.cat-header{padding-block:12px 32px;display:grid;gap:12px;max-width:760px}
.cat-header h1{margin:0}
.cat-header .lede{color:var(--muted)}

/* ============ Results & stats ============ */
.result{position:relative;margin-top:20px;border-radius:var(--r-card);background:var(--surface-2);padding:20px}
.result.error{background:var(--bad-soft);color:var(--bad);font-weight:550}
.result h3{margin:0 0 .35em;font-size:.88rem;font-weight:600;color:var(--muted);letter-spacing:0}
.result-main{font:600 clamp(1.7rem,4vw,2.3rem)/1.1 var(--f-mono);letter-spacing:-.04em;margin:0 0 .3em;word-break:break-word;font-variant-numeric:tabular-nums}
.result-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(165px,1fr));gap:8px;margin-top:14px}
.result-grid div{background:var(--surface);border-radius:var(--r-ctl);padding:11px 14px;min-width:0}
.result-grid span{display:block;font-size:.8rem;color:var(--muted)}
.result-grid strong{font:600 1.05rem var(--f-mono);word-break:break-word;font-variant-numeric:tabular-nums}
.formula{font-family:var(--f-mono);font-size:.84rem;color:var(--muted);margin:12px 0 0}
.copy-btn{position:absolute;top:14px;right:14px;font:inherit;font-size:.82rem;font-weight:600;padding:6px 12px;border-radius:var(--r-ctl);border:1px solid var(--line);background:var(--surface);color:var(--text);cursor:pointer}
.copy-btn:hover{border-color:var(--accent)}
.badge{display:inline-block;padding:3px 11px;border-radius:999px;font-size:.83rem;font-weight:600}
.badge.ok{background:var(--ok-soft);color:var(--ok)}
.badge.warn{background:var(--warn-soft);color:var(--warn)}
.badge.bad{background:var(--bad-soft);color:var(--bad)}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:8px;margin:16px 0}
.stat{background:var(--surface-2);border-radius:var(--r-ctl);padding:12px 14px;min-width:0}
.stat-label{display:block;font-size:.8rem;color:var(--muted);font-weight:500}
.stat-value{display:block;font:600 1.4rem/1.3 var(--f-mono);letter-spacing:-.03em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-variant-numeric:tabular-nums}
.stat-value.small{font:600 .92rem var(--f-sans);padding-top:6px;letter-spacing:0}
.status{padding:12px 16px;border-radius:var(--r-ctl);background:var(--surface-2);font-size:.95rem;margin-bottom:16px}
.status.ok{background:var(--ok-soft);color:var(--ok);font-weight:550}
.status.warn{background:var(--warn-soft);color:var(--warn);font-weight:550}
.status.bad{background:var(--bad-soft);color:var(--bad);font-weight:550}
.sub-card{border:1px solid var(--border);border-radius:var(--r-card);padding:18px;margin-top:18px}
.sub-card h3{font-size:1rem}
.log{font-family:var(--f-mono);font-size:.83rem;color:var(--muted);margin:0;padding:10px 12px 10px 2.8em;max-height:180px;overflow:auto;background:var(--surface-2);border-radius:var(--r-ctl)}
.log:empty{display:none}
.h-small{font-size:.94rem;font-weight:600;margin:18px 0 8px;letter-spacing:0}

/* ============ Tool-specific ============ */
.kb-wrap{overflow-x:auto;padding:6px 0 10px}
.kb{--k:clamp(2.05rem,3.85vw,2.6rem);display:flex;gap:calc(var(--k)*.3);width:max-content;margin:0 auto}
.kb-block{display:grid;grid-auto-rows:var(--k);align-content:start}
.kb-main{grid-template-columns:repeat(60,calc(var(--k)/4))}
.kb-nav{grid-template-columns:repeat(12,calc(var(--k)/4))}
.kb-num{grid-template-columns:repeat(16,calc(var(--k)/4))}
.key{margin:2px;border-radius:7px;background:var(--surface-2);border:1px solid var(--border);border-bottom-width:3px;display:flex;align-items:center;justify-content:center;font:600 .68rem var(--f-mono);color:var(--muted);user-select:none;white-space:nowrap;overflow:hidden;transition:background .08s,color .08s,transform .08s}
.key.tested{background:var(--ok-soft);border-color:var(--ok-line);color:var(--ok)}
.key.down{background:var(--accent);border-color:var(--accent-hover);color:var(--accent-ink);transform:translateY(1px)}
.key.gap{visibility:hidden}
.mt-grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:18px}
@media (max-width:760px){.mt-grid{grid-template-columns:1fr}}
.mt-area{border:2px dashed var(--line);border-radius:var(--r-card);min-height:320px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;cursor:crosshair;user-select:none;background:var(--surface-2);touch-action:none;padding:16px;text-align:center;color:var(--muted);font-weight:550}
.mt-area:focus{outline:none;border-color:var(--accent)}
.mouse-svg{width:150px;height:auto}
.mouse-svg .m-body{fill:var(--surface);stroke:var(--muted);stroke-width:2}
.mouse-svg .m-btn{fill:var(--surface-3);stroke:var(--muted);stroke-width:1.5;transition:fill .08s}
.mouse-svg .m-btn.tested{fill:var(--ok-line)}
.mouse-svg .m-btn.on{fill:var(--accent)}
table.compact th,table.compact td{padding:8px 12px}
.meter{height:22px;background:var(--surface-2);border-radius:99px;overflow:hidden}
.meter-fill{height:100%;width:0;border-radius:99px;background:linear-gradient(90deg,#22c55e 0%,#22c55e 65%,#eab308 82%,#ef4444 100%);background-size:var(--meter-w,600px) 100%;transition:width .06s linear}
.canvas-box{background:var(--surface-2);border-radius:var(--r-card);overflow:hidden;margin-top:16px}
.canvas-box canvas{display:block;width:100%}
.video-wrap{position:relative;background:#0b0b0e;border-radius:var(--r-card);overflow:hidden;aspect-ratio:16/9;max-width:100%;display:flex;align-items:center;justify-content:center}
.video-wrap video{width:100%;height:100%;object-fit:contain;display:block}
.video-wrap video.mirror{transform:scaleX(-1)}
.video-empty{position:absolute;color:#a1a1aa;font-size:.95rem;padding:16px;text-align:center}
.snaps{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
.snaps a{display:block;width:150px;border-radius:var(--r-ctl);overflow:hidden;border:1px solid var(--border)}
.snaps img{display:block;width:100%}
.spk-stage{display:flex;justify-content:space-between;align-items:center;gap:16px;margin:8px 0 20px}
.spk-icon{width:88px;height:88px;border-radius:50%;background:var(--surface-2);display:flex;align-items:center;justify-content:center;font:600 .78rem var(--f-mono);color:var(--muted);border:2px solid var(--border);transition:all .15s;flex:none}
.spk-icon.on{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);box-shadow:0 0 0 10px var(--accent-soft)}
.spk-btns{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
@media (max-width:640px){.spk-icon{width:60px;height:60px;font-size:.66rem}.spk-stage{gap:8px}}
.swatches{display:flex;flex-wrap:wrap;gap:10px;margin:12px 0 18px}
.swatch{width:50px;height:50px;border-radius:var(--r-ctl);border:2px solid var(--line);cursor:pointer;transition:transform .12s}
.swatch:hover{transform:scale(1.08)}
.dp-overlay{position:fixed;inset:0;z-index:9999;cursor:pointer}
.dp-help{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);background:rgba(0,0,0,.75);color:#fff;padding:14px 20px;border-radius:var(--r-ctl);font-size:.95rem;text-align:center;transition:opacity .6s;pointer-events:none;max-width:90vw}
.dp-close{position:absolute;top:12px;right:12px;background:rgba(0,0,0,.45);color:#fff;border:0;border-radius:var(--r-ctl);padding:7px 13px;font:inherit;cursor:pointer;opacity:.6}
.dp-close:hover{opacity:1}
.dp-fixer{position:absolute;width:120px;height:120px;border:2px solid #fff;cursor:move;touch-action:none}
.hz-big{display:flex;align-items:baseline;justify-content:center;gap:8px;padding:12px 0 4px}
.hz-big #hz-value{font:600 clamp(4rem,12vw,6.5rem)/1 var(--f-mono);letter-spacing:-.06em;font-variant-numeric:tabular-nums}
.hz-big .hz-unit{font-size:1.6rem;color:var(--muted);font-weight:600}
.hz-track{position:relative;height:56px;background:var(--surface-2);border-radius:99px;overflow:hidden;margin-top:14px}
.hz-ball{position:absolute;top:8px;left:0;width:40px;height:40px;border-radius:50%;background:var(--accent);will-change:transform}
.gp-sticks{display:flex;gap:28px;flex-wrap:wrap;justify-content:center;margin:14px 0}
.gp-stick{text-align:center;font-size:.86rem;color:var(--muted);font-weight:550}
.gp-ring{position:relative;width:140px;height:140px;border-radius:50%;background:var(--surface-2);border:2px solid var(--border);margin:0 auto 8px}
.gp-ring::before,.gp-ring::after{content:"";position:absolute;background:var(--border)}
.gp-ring::before{left:50%;top:0;bottom:0;width:1px}
.gp-ring::after{top:50%;left:0;right:0;height:1px}
.gp-dot{position:absolute;width:18px;height:18px;margin:-9px 0 0 -9px;border-radius:50%;background:var(--accent);left:50%;top:50%;z-index:1}
.gp-dot.pressed{box-shadow:0 0 0 6px var(--accent-soft)}
.gp-buttons{display:grid;grid-template-columns:repeat(auto-fill,minmax(124px,1fr));gap:8px}
.gp-btn{border:1px solid var(--border);border-radius:var(--r-ctl);padding:9px 11px;font-size:.86rem;font-weight:550;background:var(--surface-2);position:relative;overflow:hidden}
.gp-btn .bar{position:absolute;left:0;bottom:0;height:4px;background:var(--accent);width:0}
.gp-btn.on{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.gp-btn.tested:not(.on){border-color:var(--ok-line)}
.gp-btn small{display:block;opacity:.7;font:500 .78rem var(--f-mono)}
.resistor-svg{width:100%;max-width:520px;height:auto;display:block;margin:8px auto 18px}
.band-selects{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px}
.color-chip{display:inline-flex;align-items:center;gap:7px;margin:3px 6px 3px 0;padding:4px 12px 4px 5px;border-radius:99px;background:var(--surface);border:1px solid var(--border);font-size:.88rem;font-weight:550}
.color-chip i{width:20px;height:20px;border-radius:50%;border:1px solid rgba(0,0,0,.25);display:inline-block}
.res-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px;align-items:end;margin-bottom:10px}
.res-row .input-unit{min-width:0}
.tt-words{font-family:var(--f-mono);font-size:clamp(1.05rem,2.4vw,1.3rem);line-height:2.2rem;height:6.6rem;overflow:hidden;position:relative;color:var(--muted);user-select:none;margin-bottom:14px;padding:0 4px}
.tt-word{display:inline-block;margin-right:.6em;border-radius:6px;padding:0 2px}
.tt-word.current{background:var(--accent-soft)}
.tt-word .ok{color:var(--text)}
.tt-word .err{color:var(--bad);text-decoration:underline}
.tt-word.done-ok{color:var(--ok)}
.tt-word.done-err{color:var(--bad);text-decoration:line-through;text-decoration-thickness:1px}
.tt-input{width:100%;font-family:var(--f-mono);font-size:1.1rem;min-height:54px}
.play-area{border-radius:var(--r-card);min-height:320px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;cursor:pointer;user-select:none;-webkit-user-select:none;touch-action:manipulation;padding:24px;transition:background .05s;color:#fafafa}
.play-title{font-size:clamp(2rem,5.5vw,3.1rem);font-weight:700;letter-spacing:-.04em;line-height:1.1}
.play-sub{font-size:1.02rem;opacity:.9;margin-top:8px;max-width:46ch}
.rt-idle{background:#27272a}.rt-wait{background:#c42a3d}.rt-go{background:#138a48}.rt-result{background:#27272a}.rt-early{background:#a85a00}
.cps-area{background:var(--accent);color:var(--accent-ink)}
.cps-area.done{background:#27272a;color:#fafafa}
.aim-area{position:relative;height:420px;background:var(--surface-2);border-radius:var(--r-card);overflow:hidden;cursor:crosshair;user-select:none;touch-action:manipulation}
@media (max-width:640px){.aim-area{height:360px}}
.aim-target{position:absolute;border-radius:50%;border:0;padding:0;cursor:crosshair;background:radial-gradient(circle,#fff 0 18%,#e8622c 19% 40%,#fff 41% 58%,#e8622c 59%);box-shadow:0 3px 10px rgba(0,0,0,.25)}
.aim-msg{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:16px;gap:12px;color:var(--muted)}
.mem-board{display:grid;gap:10px;margin:0 auto;max-width:560px}
.mem-card{aspect-ratio:1;border:0;padding:0;background:none;perspective:600px;cursor:pointer}
.mem-inner{position:relative;width:100%;height:100%;transition:transform .35s var(--ease);transform-style:preserve-3d;display:block}
.mem-card.flip .mem-inner,.mem-card.matched .mem-inner{transform:rotateY(180deg)}
.mem-face{position:absolute;inset:0;border-radius:var(--r-ctl);display:flex;align-items:center;justify-content:center;backface-visibility:hidden;-webkit-backface-visibility:hidden}
.mem-back{background:var(--ink-tile);background-image:radial-gradient(rgba(255,255,255,.12) 1px,transparent 1.2px);background-size:10px 10px}
.mem-front{background:var(--surface);border:1px solid var(--border);transform:rotateY(180deg);color:var(--text)}
.mem-front svg{width:46%;height:46%}
.mem-card.matched .mem-front{background:var(--ok-soft);border-color:var(--ok-line);color:var(--ok)}
.wheel-layout{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:24px;align-items:start}
@media (max-width:760px){.wheel-layout{grid-template-columns:1fr}}
.wheel-box{position:relative;max-width:480px;width:100%;margin:0 auto;aspect-ratio:1}
.wheel-box canvas{width:100%;height:100%;display:block}
.wheel-pointer{position:absolute;top:-4px;left:50%;transform:translateX(-50%);width:0;height:0;border-left:16px solid transparent;border-right:16px solid transparent;border-top:30px solid var(--text);filter:drop-shadow(0 2px 2px rgba(0,0,0,.3));z-index:2}
.wheel-spin{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:22%;height:22%;border-radius:50%;border:4px solid #fafafa;background:#18181b;color:#fafafa;font:700 clamp(.8rem,2.4vw,1.05rem) var(--f-sans);letter-spacing:.02em;cursor:pointer;box-shadow:0 4px 14px rgba(0,0,0,.3)}
.wheel-spin:disabled{cursor:default}
.dice-tray{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;min-height:100px;padding:20px;background:var(--surface-2);border-radius:var(--r-card);margin:16px 0}
.die{width:72px;height:72px;border-radius:14px;background:#fafafa;color:#18181b;border:1px solid #d4d4d8;box-shadow:0 4px 0 #c7c7cc;display:flex;align-items:center;justify-content:center;font:700 1.6rem var(--f-mono);position:relative}
.die small{position:absolute;bottom:3px;right:7px;font-size:.6rem;color:#71717a;font-weight:600}
.die.d6{display:grid;grid-template:repeat(3,1fr)/repeat(3,1fr);padding:10px;gap:2px}
.die.d6 .pip{width:12px;height:12px;border-radius:50%;background:#18181b;align-self:center;justify-self:center}
.die.rolling{animation:shake .45s ease-in-out}
@keyframes shake{0%{transform:rotate(0)}25%{transform:rotate(-14deg) translateY(-4px)}50%{transform:rotate(10deg)}75%{transform:rotate(-6deg) translateY(-2px)}100%{transform:rotate(0)}}
.dice-total{text-align:center;font-size:1rem;color:var(--muted);font-weight:550}
.dice-total strong{font:700 2.6rem/1.1 var(--f-mono);display:block;color:var(--text)}
.dice-total .hint{display:block;margin:4px 0 0}
.share-btn svg{flex:none}


/* ============ Bolder: the system's own strongest moves at page scale ============ */
/* Hero becomes a full-bleed ink tile; the live device panel is the product, shown large on it. */
.hero{margin:-20px calc(50% - 50vw) 0;padding:72px calc(50vw - 50%) 80px;background:var(--ink-tile);color:var(--ink-tile-text);gap:64px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-180px;top:-220px;width:620px;height:620px;border-radius:50%;background:radial-gradient(circle,rgba(232,98,44,.32),transparent 66%);pointer-events:none}
.hero>*{position:relative;z-index:1}
.hero h1{font-size:clamp(2.8rem,6.4vw,5.4rem);line-height:.98;letter-spacing:-.05em;max-width:12ch;color:#fafafa;margin-bottom:.35em}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero .lede{color:#b8b8c0;font-size:1.18rem;max-width:44ch}
.hero .search input[type=search]{background:#fafafa;color:#18181b;border-color:transparent;min-height:58px;font-size:1.05rem;box-shadow:0 10px 30px -12px rgba(0,0,0,.6)}
.hero .search input::placeholder{color:#5c5c66}
.hero .search svg{color:#5c5c66}
.hero .search-key{background:#fff;border-color:#d4d4d8;color:#55555e}
.hero .btn-primary{min-height:58px;color:#18181b}
.hero .strip-label{color:#a1a1aa}
.hero .chip{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.14);color:#f4f4f5}
.hero .chip .ico{color:#a1a1aa}
.hero .chip:hover{border-color:var(--accent);background:rgba(255,255,255,.1)}
.hero-facts{list-style:none;display:flex;flex-wrap:wrap;gap:8px 22px;margin:28px 0 0;padding:0;color:#c9c9d0;font-size:.95rem;font-weight:500}
.hero-facts li{display:flex;align-items:center;gap:7px}
.hero-facts .ico{width:17px;height:17px;color:var(--accent)}
.hero .device{background:#202026;border-color:#2e2e36;box-shadow:0 40px 80px -30px rgba(0,0,0,.7);color:#f4f4f5}
.hero .device-head{border-color:#2e2e36}
.hero .device-head h2{font-size:1.08rem;color:#fafafa}
.hero .device-head span,.hero .dv-label,.hero .dv-foot,.hero .dv-key p{color:#a1a1aa}
.hero .dv-key p b{color:#fafafa}
.hero .dv{color:#fafafa;padding:20px 24px}
.hero .dv:nth-child(odd){border-color:#2e2e36}.hero .dv:nth-child(n+3),.hero .dv-foot{border-color:#2e2e36}
.hero a.dv:hover{background:#26262d}
.hero .dv-value{font-size:2.1rem;margin-top:8px}
.hero .dv-value small{color:#8b8b95}
.hero .keycap{background:#2a2a31;border-color:#3a3a44;color:#fafafa;min-width:72px;height:72px;font-size:1.5rem}
.hero .keycap.hit{background:var(--accent);border-color:var(--accent-hover);color:#18181b}
@media (max-width:960px){.hero{padding-top:40px;padding-bottom:48px}}
@media (max-width:640px){.hero .hero-cta .btn{flex:1 1 100%}.hero h1{font-size:clamp(2.6rem,12vw,3.4rem)}.hero{padding-top:32px}.hero .dv{padding:16px}.hero .dv-value{font-size:1.6rem}}
:root[data-theme="dark"] .hero{background:#141418;border-bottom:1px solid var(--border)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .hero{background:#141418;border-bottom:1px solid var(--border)}}

/* Showcase: two tiles take the system's ink and accent fields */
.showcase{margin-top:96px}
.showcase .section-head h2{font-size:clamp(1.9rem,3.6vw,2.8rem);letter-spacing:-.04em}
.show-ink .show-pv{background:var(--ink-tile);border-color:var(--ink-tile)}
.show-ink .k{background:#2a2a31;border-color:#3a3a44;color:#a1a1aa}
.show-ink .k.t{background:rgba(232,98,44,.18);border-color:var(--accent);color:#ffb08a}
.show-ink .k.hit{background:var(--accent);color:#18181b}
.show-ink .pv-kb-note{color:#a1a1aa}.show-ink .pv-kb-note b{color:#fafafa}
.show-accent .show-pv{background:var(--accent);border-color:var(--accent)}
.show-accent .pv-formula{color:#18181b}
.show-accent .pv-fields span{background:rgba(255,255,255,.9);border-color:transparent;color:#18181b}
.show-accent .pv-fields small{color:#55555e}
.show-accent .pv-fields .res{background:#18181b;color:#fafafa;border-color:#18181b}
.show-accent .pv-fields .res small{color:#a1a1aa}
.show-lg .show-pv{min-height:340px}

/* Directory headings at full display strength */
.dir-head h2{font-size:clamp(1.9rem,3.6vw,2.8rem);letter-spacing:-.04em}
.group-head h3{font-size:1.3rem}

/* Why becomes the one accent field on the page */
.why-band{margin:112px calc(50% - 50vw) 0;padding:80px calc(50vw - 50%);background:var(--accent);color:#18181b}
.why-band h2{color:#18181b;font-size:clamp(2rem,4vw,3.2rem);letter-spacing:-.045em;max-width:14ch}
.why-band .why-lede{color:#2b1a12;font-size:1.08rem}
.why-band .fact .ico{color:#18181b}
.why-band .fact h3{color:#18181b;font-size:1.08rem}
.why-band .fact p{color:#2b1a12}
.why-band .fact{padding-top:16px;border-top:2px solid rgba(24,24,27,.85)}
.why-band .fact .ico{margin-bottom:12px}
.why-band+.home-faq{margin-top:96px}
@media (max-width:640px){.why-band{padding-block:56px}}


/* ============ Refinement pass: one bold element (the live panel), everything around it quieter ============ */
h1,h2,h3{font-family:var(--f-display);font-optical-sizing:auto}
h1,h2{font-weight:750;font-stretch:88%;letter-spacing:-.03em}
h3{font-weight:650;letter-spacing:-.01em}
.hero h1{font-size:clamp(2.9rem,6.6vw,5.6rem);line-height:.94;letter-spacing:-.035em;max-width:13ch;font-stretch:84%;margin-bottom:.32em}
.hero h1 em{color:inherit}
.hero .lede{font-size:1.15rem;max-width:40ch}
.why-band h2{font-stretch:85%}
.showcase .section-head h2,.dir-head h2{letter-spacing:-.03em}

/* Links name their destination; no appended arrows */
.section-link{text-decoration:underline;text-decoration-thickness:1.5px;text-underline-offset:4px;text-decoration-color:var(--accent)}
.section-link:hover{text-decoration-thickness:2.5px}
.mega-all .ico,.foot-cta .ico{display:none}

/* Live frame-time graph: the page's signature */
.dv-graph{padding:16px 24px 14px;border-bottom:1px solid var(--border)}
.dv-graph canvas{display:block;width:100%;height:72px}
.dv-graph-note{margin:8px 0 0;font-size:.82rem;color:var(--muted)}
.hero .dv-graph{border-color:#2e2e36}
.hero .dv-graph-note{color:#a1a1aa}

/* Cards: quiet hierarchy, border shift on hover, no lift, no shadow wash */
.card{box-shadow:none;transition:border-color .2s,background .2s}
.card:hover{transform:none;box-shadow:none;border-color:var(--text)}
.card:hover .ic{background:var(--accent);color:var(--accent-ink)}
.show{transition:border-color .2s}
.show:hover{transform:none;box-shadow:none;border-color:var(--text)}
.show-meta{display:block}
.show h3{margin:0 0 4px}
.show-lg h3{font-size:1.5rem}
.explore-card:hover{transform:none}

/* Why band: facts read as a list, not icon tiles */
.why-band .facts{gap:0 40px}
.why-band .fact{display:grid;grid-template-columns:auto minmax(0,1fr);gap:2px 12px;align-items:start;padding:18px 0;border-top:2px solid rgba(24,24,27,.85)}
.why-band .fact .ico{margin:2px 0 0;grid-row:span 2}
.why-band .fact h3,.why-band .fact p{grid-column:2}
.why-band .fact h3{margin:0}
.why-band .fact p{margin:4px 0 0}

/* ============ Polish pass (impeccable, October 2026) ============ */
/* Mobile hero: get the live device panel closer to the fold */
@media (max-width:640px){
  .hero{padding-bottom:40px;gap:28px;grid-template-columns:minmax(0,1fr)}
  .hero>*{min-width:0}
  .hero .lede{font-size:1.04rem;margin-top:.7em}
  .hero-cta{margin-top:22px;gap:10px}
  .hero .search input[type=search],.hero .btn-primary{min-height:52px;font-size:1rem}
  .hero .strip{flex-wrap:nowrap;overflow-x:auto;margin-inline:-16px;padding-inline:16px;scrollbar-width:none;-webkit-mask-image:linear-gradient(90deg,#000 88%,transparent)}
  .hero .strip::-webkit-scrollbar{display:none}
  .hero .chip{flex:none;min-height:40px}
  .hero-facts{margin-top:18px}
  .hero .device-head span{display:none}
}
/* Touch targets: footer and aside links reach 40px on touch screens */
@media (pointer:coarse){
  .footer-grid ul{gap:0}
  .footer-grid ul a,.foot-links a,.foot-cta{display:inline-flex;align-items:center;min-height:40px}
  .crumbs a{display:inline-flex;align-items:center;min-height:36px}
}
/* On one-column tool pages the "More ..." section below already lists these, so the sidebar list would repeat it */
@media (max-width:960px){.layout aside{display:none}}
/* 404 */
.nf{padding:56px 0 32px}
.nf-code{font:600 .85rem var(--f-mono);color:var(--accent-fg);letter-spacing:.08em;margin:0 0 10px}
.nf .hero-cta{margin-top:24px}
.nf-sub{font-size:1.25rem;margin:8px 0 16px}

/* ============ Motion (motivated: entrance hierarchy, reveal on scroll, feedback) ============ */
@media (prefers-reduced-motion:no-preference){
  .hero-main>*{animation:rise .7s var(--ease) both}
  .hero-main>*:nth-child(2){animation-delay:.06s}
  .hero-main>*:nth-child(3){animation-delay:.12s}
  .device{animation:rise .8s var(--ease) .18s both}
}
@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@keyframes lvl{from{transform:scaleY(.35)}to{transform:scaleY(1)}}
@keyframes rtbg{0%{background:#c42a3d}45%{background:#138a48}70%{background:#27272a}}
@keyframes rtwait{0%{opacity:1}45%{opacity:0}}
@keyframes rtgo{0%{opacity:0}45%{opacity:1}70%{opacity:0}}
@keyframes rtms{0%{opacity:0}70%{opacity:1}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}