/* OnlineHardwareTest — public site styles
   Concept: a calm "test bench". Quiet cool-grey surroundings, one instrument panel per page,
   signal-orange used only for live/active states and the primary action. */

@font-face{font-family:Inter;font-style:normal;font-weight:400;font-display:swap;src:url(/assets/fonts/inter-vietnamese-400-normal.woff2) format("woff2");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}
@font-face{font-family:Inter;font-style:normal;font-weight:500;font-display:swap;src:url(/assets/fonts/inter-vietnamese-500-normal.woff2) format("woff2");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}
@font-face{font-family:Inter;font-style:normal;font-weight:600;font-display:swap;src:url(/assets/fonts/inter-vietnamese-600-normal.woff2) format("woff2");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}
@font-face{font-family:Inter;font-style:normal;font-weight:700;font-display:swap;src:url(/assets/fonts/inter-vietnamese-700-normal.woff2) format("woff2");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}
@font-face{font-family:Inter;font-style:normal;font-weight:400;font-display:swap;src:url(/assets/fonts/inter-latin-400-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:Inter;font-style:normal;font-weight:400;font-display:swap;src:url(/assets/fonts/inter-latin-ext-400-normal.woff2) format("woff2");unicode-range:U+0100-02AF,U+0304,U+0308,U+0329,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20CF,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:Inter;font-style:normal;font-weight:500;font-display:swap;src:url(/assets/fonts/inter-latin-500-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+2000-206F,U+20AC,U+2122,U+2212}
@font-face{font-family:Inter;font-style:normal;font-weight:500;font-display:swap;src:url(/assets/fonts/inter-latin-ext-500-normal.woff2) format("woff2");unicode-range:U+0100-02AF,U+1E00-1E9F,U+20A0-20AB,U+20AD-20CF,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:Inter;font-style:normal;font-weight:600;font-display:swap;src:url(/assets/fonts/inter-latin-600-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+2000-206F,U+20AC,U+2122,U+2212}
@font-face{font-family:Inter;font-style:normal;font-weight:600;font-display:swap;src:url(/assets/fonts/inter-latin-ext-600-normal.woff2) format("woff2");unicode-range:U+0100-02AF,U+1E00-1E9F,U+20A0-20AB,U+20AD-20CF,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:Inter;font-style:normal;font-weight:700;font-display:swap;src:url(/assets/fonts/inter-latin-700-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+2000-206F,U+20AC,U+2122,U+2212}
@font-face{font-family:Inter;font-style:normal;font-weight:700;font-display:swap;src:url(/assets/fonts/inter-latin-ext-700-normal.woff2) format("woff2");unicode-range:U+0100-02AF,U+1E00-1E9F,U+20A0-20AB,U+20AD-20CF,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Space Grotesk";font-style:normal;font-weight:500;font-display:swap;src:url(/assets/fonts/space-grotesk-latin-500-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+2000-206F,U+20AC,U+2212}
@font-face{font-family:"Space Grotesk";font-style:normal;font-weight:500;font-display:swap;src:url(/assets/fonts/space-grotesk-latin-ext-500-normal.woff2) format("woff2");unicode-range:U+0100-02AF,U+1E00-1E9F,U+20A0-20CF}
@font-face{font-family:"Space Grotesk";font-style:normal;font-weight:600;font-display:swap;src:url(/assets/fonts/space-grotesk-latin-600-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+2000-206F,U+20AC,U+2212}
@font-face{font-family:"Space Grotesk";font-style:normal;font-weight:600;font-display:swap;src:url(/assets/fonts/space-grotesk-latin-ext-600-normal.woff2) format("woff2");unicode-range:U+0100-02AF,U+1E00-1E9F,U+20A0-20CF}
@font-face{font-family:"Space Grotesk";font-style:normal;font-weight:700;font-display:swap;src:url(/assets/fonts/space-grotesk-latin-700-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+2000-206F,U+20AC,U+2212}
@font-face{font-family:"Space Grotesk";font-style:normal;font-weight:700;font-display:swap;src:url(/assets/fonts/space-grotesk-latin-ext-700-normal.woff2) format("woff2");unicode-range:U+0100-02AF,U+1E00-1E9F,U+20A0-20CF}
@font-face{font-family:Inter;font-style:normal;font-weight:400;font-display:swap;src:url(/assets/fonts/inter-cyrillic-400-normal.woff2) format("woff2");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:Inter;font-style:normal;font-weight:500;font-display:swap;src:url(/assets/fonts/inter-cyrillic-500-normal.woff2) format("woff2");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:Inter;font-style:normal;font-weight:600;font-display:swap;src:url(/assets/fonts/inter-cyrillic-600-normal.woff2) format("woff2");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:Inter;font-style:normal;font-weight:700;font-display:swap;src:url(/assets/fonts/inter-cyrillic-700-normal.woff2) format("woff2");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:Cairo;font-style:normal;font-weight:400;font-display:swap;src:url(/assets/fonts/cairo-arabic-400-normal.woff2) format("woff2");unicode-range:U+0600-06FF,U+0750-077F,U+0870-088E,U+0890-0891,U+0898-08E1,U+08E3-08FF,U+200C-200E,U+2010-2011,U+204F,U+2E41,U+FB50-FDFF,U+FE70-FE74,U+FE76-FEFC}
@font-face{font-family:Cairo;font-style:normal;font-weight:600;font-display:swap;src:url(/assets/fonts/cairo-arabic-600-normal.woff2) format("woff2");unicode-range:U+0600-06FF,U+0750-077F,U+0870-08FF,U+200C-200E,U+FB50-FDFF,U+FE70-FEFC}
@font-face{font-family:Cairo;font-style:normal;font-weight:700;font-display:swap;src:url(/assets/fonts/cairo-arabic-700-normal.woff2) format("woff2");unicode-range:U+0600-06FF,U+0750-077F,U+0870-08FF,U+200C-200E,U+FB50-FDFF,U+FE70-FEFC}

:root{
  --bg:#F3F5F7; --surface:#FFFFFF; --surface-2:#E9EDF1; --surface-3:#DDE3E9;
  --ink:#14202B; --ink-2:#4A5867; --ink-3:#6B7887; --line:#D5DCE3; --line-2:#C3CCD5;
  --accent:#E8590C; --accent-2:#C2470A; --accent-soft:#FDEBDF; --on-accent:#FFFFFF;
  --link:#1F5E99; --ok:#1E8E5A; --ok-soft:#E1F3EA; --warn:#A86414; --warn-soft:#FBF0DC; --bad:#C92A2A; --bad-soft:#FBE4E4;
  --c-input:#3563C9; --c-display:#7148C2; --c-audio:#0E8577; --c-system:#B4530A;
  --bench:#14202B; --bench-ink:#E7EDF2; --bench-2:#1D2A36; --bench-line:#2B3946;
  --r-sm:6px; --r:10px; --r-lg:16px;
  --font:Inter,Cairo,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --display:"Space Grotesk",Cairo,Inter,system-ui,sans-serif;
  --w:1180px;
  color-scheme:light;
}
:root[data-theme="dark"]{
  --bg:#0D1318; --surface:#141C23; --surface-2:#1A242D; --surface-3:#22303B;
  --ink:#E7EDF2; --ink-2:#A3B1BE; --ink-3:#7F8E9C; --line:#25313C; --line-2:#334350;
  --accent:#FF7A33; --accent-2:#FF9257; --accent-soft:#3A2214; --on-accent:#1A0D05;
  --link:#7DB8EE; --ok:#3DBE7F; --ok-soft:#13301F; --warn:#E3A44A; --warn-soft:#33260F; --bad:#F06464; --bad-soft:#3A1717;
  --c-input:#7EA2F0; --c-display:#AE8BF2; --c-audio:#3CC4B3; --c-system:#F0954A;
  --bench:#0A0F13; --bench-ink:#E7EDF2; --bench-2:#121A21; --bench-line:#22303B;
  color-scheme:dark;
}
html[lang="ar"]{--font:Cairo,Inter,system-ui,sans-serif;--display:Cairo,"Space Grotesk",sans-serif}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:80px}
body{margin:0;background:var(--bg);color:var(--ink);font:400 16px/1.6 var(--font);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img,svg{max-width:100%}
a{color:var(--link);text-underline-offset:2px}
h1,h2,h3{font-family:var(--display);line-height:1.2;letter-spacing:-.01em;margin:0 0 .5em;font-weight:700}
html[lang="ar"] h1,html[lang="ar"] h2,html[lang="ar"] h3{letter-spacing:0;line-height:1.35}
h1{font-size:clamp(1.9rem,1.3rem + 2.2vw,2.9rem)}
h2{font-size:1.45rem}
h3{font-size:1.1rem}
p{margin:0 0 1em}
.muted{color:var(--ink-2)}
.small{font-size:.875rem}
.center{text-align:center;justify-content:center}
code,kbd{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.9em}
kbd{border:1px solid var(--line-2);border-bottom-width:2px;border-radius:5px;padding:1px 6px;background:var(--surface);color:var(--ink-2)}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:4px}
.ic{flex:none;vertical-align:middle}
.skip{position:absolute;inset-inline-start:12px;top:8px;transform:translateY(-200%);background:var(--ink);color:var(--bg);padding:8px 14px;border-radius:var(--r);z-index:100}
.skip:focus{transform:none}
.wrap{max-width:var(--w);margin:0 auto;padding:0 20px}
.wrap.narrow{max-width:820px}
[hidden]{display:none!important}

/* ---------- buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:42px;padding:9px 18px;border-radius:var(--r);border:1px solid transparent;font:600 .95rem/1.2 var(--font);cursor:pointer;text-decoration:none;transition:background .15s,border-color .15s,color .15s;white-space:nowrap}
.btn-primary{background:var(--accent);color:var(--on-accent)}
.btn-primary:hover{background:var(--accent-2)}
.btn-ghost{background:var(--surface);color:var(--ink);border-color:var(--line-2)}
.btn-ghost:hover{border-color:var(--ink-3)}
.btn-sm{min-height:34px;padding:6px 12px;font-size:.875rem}
.btn-lg{min-height:50px;padding:12px 24px;font-size:1rem}
.btn-block{width:100%}
.btn:disabled{opacity:.55;cursor:not-allowed}
.linkbtn{background:none;border:0;padding:0;color:inherit;font:inherit;cursor:pointer;text-decoration:underline;text-underline-offset:2px}
.icon-btn{display:inline-flex;align-items:center;gap:6px;height:40px;min-width:40px;padding:0 10px;justify-content:center;border:1px solid transparent;border-radius:var(--r);background:transparent;color:var(--ink);cursor:pointer;font:600 .85rem var(--font)}
.icon-btn:hover{background:var(--surface-2)}

/* ---------- header */
.hdr{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.hdr-in{max-width:var(--w);margin:0 auto;padding:0 20px;height:64px;display:flex;align-items:center;gap:24px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font:600 1.05rem var(--display);letter-spacing:-.01em;white-space:nowrap}
.logo b{font-weight:700}
.logo-bg{fill:#14202B}
:root[data-theme="dark"] .logo-bg{fill:#22303B}
.nav{display:flex;align-items:center;gap:4px;flex:1}
.nav-link{display:inline-flex;align-items:center;gap:6px;height:40px;padding:0 12px;border-radius:var(--r);color:var(--ink);text-decoration:none;font:500 .95rem var(--font);background:none;border:0;cursor:pointer}
.nav-link:hover,.nav-link[aria-expanded="true"]{background:var(--surface-2)}
.nav-link[aria-current]{color:var(--accent)}
.nav-support{margin-inline-start:auto;color:var(--accent)}
.nav-support .ic{fill:currentColor}
.hdr-actions{display:flex;align-items:center;gap:2px}
.burger{display:none}
.th-light{display:none}
:root[data-theme="dark"] .th-light{display:inline-flex}
:root[data-theme="dark"] .th-dark{display:none}
.has-mega{position:static}
.mega{position:absolute;inset-inline:0;top:64px;background:var(--surface);border-bottom:1px solid var(--line);box-shadow:0 18px 40px -20px rgba(10,20,30,.35);display:none;grid-template-columns:repeat(4,1fr);gap:8px 28px;padding:24px max(20px,calc((100vw - var(--w))/2 + 20px)) 28px}
.has-mega.open .mega{display:grid}
.mega-h{display:flex;align-items:center;gap:8px;font:700 .95rem var(--display);color:var(--ink);text-decoration:none;padding:6px 8px;margin-bottom:4px}
.mega ul{list-style:none;margin:0;padding:0}
.mega li a{display:flex;align-items:center;gap:10px;padding:7px 8px;border-radius:var(--r-sm);color:var(--ink-2);text-decoration:none;font-size:.93rem}
.mega li a:hover,.mega li a[aria-current]{background:var(--surface-2);color:var(--ink)}
.mega li a .ic{color:var(--cat,var(--ink-3))}

.cat-input{--cat:var(--c-input)} .cat-display{--cat:var(--c-display)} .cat-audio{--cat:var(--c-audio)} .cat-system{--cat:var(--c-system)}
.cat-dot{width:9px;height:9px;border-radius:3px;background:var(--cat,var(--ink-3));flex:none;display:inline-block}

.langdd{position:relative}
.langdd-menu{position:absolute;inset-inline-end:0;top:46px;list-style:none;margin:0;padding:6px;min-width:190px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);box-shadow:0 18px 40px -18px rgba(10,20,30,.4);display:none}
.langdd.open .langdd-menu{display:block}
.langdd-menu a{display:flex;gap:10px;align-items:center;padding:8px 10px;border-radius:var(--r-sm);color:var(--ink);text-decoration:none}
.langdd-menu a:hover{background:var(--surface-2)}
.langdd-menu a[aria-current]{font-weight:600;color:var(--accent)}
.lang-code{font:600 .75rem var(--display);color:var(--ink-3);width:22px}

/* ---------- search dialog */
.search-dlg{position:fixed;inset:0;z-index:80;background:rgba(10,16,22,.5);display:flex;justify-content:center;align-items:flex-start;padding:10vh 16px 16px}
.search-box{width:100%;max-width:640px;background:var(--surface);border-radius:var(--r-lg);box-shadow:0 30px 80px -20px rgba(0,0,0,.5);overflow:hidden;border:1px solid var(--line)}
.search-field{display:flex;align-items:center;gap:12px;padding:0 16px;border-bottom:1px solid var(--line)}
.search-field input{flex:1;border:0;background:none;color:var(--ink);font:500 1.05rem var(--font);height:58px;outline:none;min-width:0}
.search-results{list-style:none;margin:0;padding:8px;max-height:60vh;overflow:auto}
.search-results a{display:flex;gap:12px;align-items:center;padding:10px 12px;border-radius:var(--r);color:var(--ink);text-decoration:none}
.search-results a:hover,.search-results a.sel{background:var(--surface-2)}
.search-results .ic{color:var(--cat)}
.search-results small{display:block;color:var(--ink-3);font-size:.82rem}
.search-empty{padding:18px 20px;color:var(--ink-2);margin:0}

/* ---------- hero (home) */
.hero{border-bottom:1px solid var(--line);background:linear-gradient(var(--surface),var(--bg))}
.hero-in{display:grid;grid-template-columns:1.25fr 1fr;gap:56px;align-items:center;padding-top:56px;padding-bottom:56px}
.hero h1{font-size:clamp(2.2rem,1.4rem + 3vw,3.6rem);letter-spacing:-.025em;max-width:14ch}
html[lang="ar"] .hero h1,html[lang="de"] .hero h1,html[lang="fr"] .hero h1,html[lang="tr"] .hero h1,html[lang="es"] .hero h1{max-width:18ch}
.lead{font-size:1.125rem;color:var(--ink-2);max-width:62ch}
.hero-search{display:flex;align-items:center;gap:12px;margin:26px 0 18px;padding:0 18px;height:60px;background:var(--surface);border:1.5px solid var(--line-2);border-radius:var(--r-lg);max-width:560px;color:var(--ink-3)}
.hero-search:focus-within{border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-soft)}
.hero-search input{flex:1;min-width:0;border:0;outline:0;background:none;color:var(--ink);font:500 1.05rem var(--font)}
.badges{display:flex;flex-wrap:wrap;gap:8px 20px;list-style:none;margin:0;padding:0;color:var(--ink-2);font-size:.92rem}
.badges li{display:inline-flex;align-items:center;gap:7px}
.badges .ic{color:var(--ok)}
.badges.small{font-size:.84rem;justify-content:center;margin-top:12px}

/* the memorable element: a live instrument readout of this device */
.readout{background:var(--bench);color:var(--bench-ink);border-radius:var(--r-lg);padding:22px 22px 18px;position:relative;box-shadow:0 30px 60px -30px rgba(10,20,30,.6)}
.readout-h{display:flex;align-items:center;gap:9px;font:600 .9rem var(--display);color:#AFC0CF}
.live-dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 0 rgba(232,89,12,.6);animation:live 2s infinite}
@keyframes live{0%{box-shadow:0 0 0 0 rgba(232,89,12,.55)}70%{box-shadow:0 0 0 9px rgba(232,89,12,0)}100%{box-shadow:0 0 0 0 rgba(232,89,12,0)}}
.pulse{display:block;width:100%;height:56px;margin:8px 0 4px}
.pulse path{fill:none;stroke:var(--accent);stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:420;stroke-dashoffset:420;animation:draw 1.6s .2s cubic-bezier(.6,.1,.3,1) forwards}
@keyframes draw{to{stroke-dashoffset:0}}
.readout-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;margin:0;background:var(--bench-line);border:1px solid var(--bench-line);border-radius:var(--r);overflow:hidden}
.readout-grid div{background:var(--bench-2);padding:11px 14px}
.readout-grid dt{font-size:.76rem;color:#8FA1B1}
.readout-grid dd{margin:2px 0 0;direction:ltr;unicode-bidi:isolate;text-align:start;font:600 1.12rem var(--display);font-variant-numeric:tabular-nums;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.readout-link{display:inline-block;margin-top:12px;color:#AFC0CF;font-size:.88rem}

/* ---------- sections */
.sec-h{font-size:1.35rem;margin:0 0 14px}
.sec-row{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:14px;flex-wrap:wrap}
.sec-row p{margin:0}
.popular{padding:36px 0 8px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border:1px solid var(--line-2);border-radius:999px;background:var(--surface);color:var(--ink);text-decoration:none;font-weight:500;font-size:.93rem}
.chip .ic{color:var(--cat)}
.chip:hover{border-color:var(--cat)}
.cat-sec{padding:34px 0 6px}
.cat-head{display:flex;align-items:center;gap:14px;margin-bottom:16px}
.cat-head h2{margin:0;font-size:1.4rem}
.cat-head h2 a{color:var(--ink);text-decoration:none}
.cat-head h2 a:hover{color:var(--cat)}
.cat-head p{margin:0;color:var(--ink-3);font-size:.92rem}
.cat-ic{display:inline-grid;place-items:center;width:44px;height:44px;border-radius:12px;background:color-mix(in srgb,var(--cat) 13%,transparent);color:var(--cat);flex:none}
.cat-ic.big{width:60px;height:60px;border-radius:16px}
.tool-grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:10px}
.tool-card{display:flex;gap:14px;align-items:flex-start;height:100%;padding:16px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);text-decoration:none;color:var(--ink)}
.tool-card:hover{border-color:var(--cat)}
.tool-card:hover strong{color:var(--cat)}
.tool-ic{display:inline-grid;place-items:center;width:40px;height:40px;border-radius:10px;background:var(--surface-2);color:var(--cat,var(--ink));flex:none}
.tool-ic.big{width:60px;height:60px;border-radius:16px;background:color-mix(in srgb,var(--cat) 13%,transparent)}
.tool-txt{display:flex;flex-direction:column;gap:2px;min-width:0}
.tool-txt strong{font-weight:600;font-size:1rem}
.tool-txt span{color:var(--ink-2);font-size:.88rem;line-height:1.45}
.filter-empty{padding:30px 0 0;color:var(--ink-2)}

.guide-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:0 32px;border-top:1px solid var(--line)}
.guide-row{display:flex;gap:14px;align-items:baseline;padding:14px 2px;border-bottom:1px solid var(--line);text-decoration:none;color:var(--ink)}
.guide-row > span:last-child{display:flex;flex-direction:column;gap:2px}
.guide-row .muted{font-size:.9rem;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.guide-row:hover strong{color:var(--cat)}
.home-guides{padding:48px 0 10px}
.why{padding:48px 0 8px}
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.why-grid h3{font-size:1.05rem;margin-bottom:6px}
.why-grid p{color:var(--ink-2);font-size:.95rem;margin:0}
.faq{padding:8px 0 48px}
section.faq{padding-top:40px;max-width:820px}
.faq details{border-bottom:1px solid var(--line)}
.faq details:first-of-type{border-top:1px solid var(--line)}
.faq summary{cursor:pointer;padding:15px 30px 15px 2px;font-weight:600;list-style:none;position:relative}
html[dir="rtl"] .faq summary{padding:15px 2px 15px 30px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;inset-inline-end:4px;top:12px;font:400 1.4rem/1 var(--display);color:var(--ink-3)}
.faq details[open] summary::after{content:"−"}
.faq details p{margin:0 0 16px;color:var(--ink-2);max-width:72ch}

/* ---------- page heads & crumbs */
.crumbs{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:.88rem;color:var(--ink-3);padding:22px 0 6px}
.crumbs a{color:var(--ink-2);text-decoration:none}
.crumbs a:hover{color:var(--ink);text-decoration:underline}
.page-head,.tool-head{display:flex;gap:20px;align-items:flex-start;padding:14px 0 26px}
.page-head.plain{display:block}
.page-head h1,.tool-head h1{margin-bottom:8px}
.tool-head .lead,.page-head .lead{margin:0}

/* ---------- tool bench */
.bench-wrap{background:var(--surface-2);border-block:1px solid var(--line);padding:28px 0 18px}
.bench{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;min-height:320px;position:relative;box-shadow:0 1px 0 var(--line)}
.two-col{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;padding:30px 0 60px;align-items:start}
.prose{max-width:74ch}
.prose h2{margin-top:1.6em;font-size:1.35rem}
.prose h2:first-child{margin-top:0}
.prose p,.prose li{color:var(--ink);line-height:1.7}
.prose ol,.prose ul{padding-inline-start:1.3em}
.prose li{margin-bottom:.55em}
.prose blockquote{margin:1.4em 0;padding:14px 18px;border-inline-start:4px solid var(--accent);background:var(--accent-soft);border-radius:0 var(--r) var(--r) 0}
html[dir="rtl"] .prose blockquote{border-radius:var(--r) 0 0 var(--r)}
.prose code{background:var(--surface-2);padding:1px 6px;border-radius:4px}
.prose img{border-radius:var(--r)}
.howto{counter-reset:s;list-style:none;padding:0!important}
.howto li{counter-increment:s;position:relative;padding-inline-start:44px;margin-bottom:14px;min-height:30px}
.howto li::before{content:counter(s);position:absolute;inset-inline-start:0;top:0;width:30px;height:30px;border-radius:50%;background:var(--ink);color:var(--bg);display:grid;place-items:center;font:700 .85rem var(--display)}
.side{display:flex;flex-direction:column;gap:18px;position:sticky;top:84px}
.side-box{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:18px}
.side-box h2{font-size:1rem;margin:0 0 10px}
.side-box h2 a{color:var(--ink);text-decoration:none}
.side-box.accent{border-color:var(--cat);border-width:1.5px}
.side-box .btn{margin-top:4px}
.side-list{list-style:none;margin:0;padding:0}
.side-list a{display:flex;gap:10px;align-items:flex-start;padding:7px 0;color:var(--ink);text-decoration:none;font-size:.93rem;line-height:1.4}
.side-list a:hover span{text-decoration:underline}
.side-list .ic{color:var(--cat,var(--ink-3));margin-top:2px}
.side-list.compact a{padding:5px 0;color:var(--ink-2)}

/* ---------- category / tool list */
.tool-list{list-style:none;margin:0 0 28px;padding:0;border-top:1px solid var(--line)}
.tool-row{display:flex;gap:18px;align-items:center;padding:18px 4px;border-bottom:1px solid var(--line);text-decoration:none;color:var(--ink)}
.tool-row .tool-txt span{font-size:.94rem}
.tool-go{margin-inline-start:auto;font-weight:600;color:var(--cat);white-space:nowrap;font-size:.92rem}
.tool-row:hover strong{color:var(--cat)}
.other-cats{display:flex;flex-wrap:wrap;gap:8px;padding:30px 0 60px}

/* ---------- guides */
.tabs{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:22px}
.tabs button{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line-2);background:var(--surface);color:var(--ink);padding:7px 14px;border-radius:999px;cursor:pointer;font:500 .92rem var(--font)}
.tabs button span:last-child{color:var(--ink-3);font-size:.82rem}
.tabs button[aria-selected="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.tabs button[aria-selected="true"] span:last-child{color:inherit;opacity:.7}
.guide-cards{list-style:none;margin:0 0 60px;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:12px}
.guide-cards > li > a{display:flex;flex-direction:column;gap:8px;height:100%;padding:20px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);color:var(--ink);text-decoration:none}
.guide-cards > li > a:hover{border-color:var(--cat)}
.guide-cards strong{font:700 1.08rem/1.35 var(--display)}
.guide-cards .muted{font-size:.92rem;line-height:1.5}
.g-cat{display:inline-flex;align-items:center;gap:8px;font-size:.82rem;color:var(--cat);font-weight:600;text-decoration:none}
.g-meta{margin-top:auto;font-size:.82rem;color:var(--ink-3)}
.ad-li{grid-column:1/-1}
.art-head{margin-bottom:22px}
.art-head h1{margin:10px 0 12px}
.art-meta{font-size:.88rem;color:var(--ink-3)}
.verify-card{display:flex;gap:16px;align-items:center;padding:16px 18px;border:1.5px solid var(--cat);border-radius:var(--r);background:var(--surface);text-decoration:none;color:var(--ink);margin:0 0 24px}
.verify-card > span:nth-child(2){display:flex;flex-direction:column;gap:2px;flex:1;font-size:.95rem}
.art-body h2{margin-top:1.6em}
.art-body ol{padding-inline-start:1.4em}
.art-body ol li::marker{font:700 1rem var(--display);color:var(--cat)}
.note{background:var(--warn-soft);color:var(--ink);padding:12px 16px;border-radius:var(--r);border:1px solid color-mix(in srgb,var(--warn) 35%,transparent)}

/* ---------- forms & panels */
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;margin-bottom:24px}
.form{display:flex;flex-direction:column;gap:16px}
.form label,.donate label{display:flex;flex-direction:column;gap:6px;font-weight:500;font-size:.93rem}
input:not([type=radio]):not([type=checkbox]):not([type=range]),select,textarea{font:400 1rem var(--font);color:var(--ink);background:var(--bg);border:1px solid var(--line-2);border-radius:var(--r);padding:11px 13px;width:100%;min-height:44px}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
textarea{resize:vertical;line-height:1.5}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.hp{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}
.alert{padding:12px 14px;border-radius:var(--r);margin:0}
.alert-err{background:var(--bad-soft);color:var(--bad);border:1px solid color-mix(in srgb,var(--bad) 30%,transparent)}
.form-done,.result-ok{text-align:center;padding:30px 10px}
.form-done .ic,.result-ok .ic{color:var(--ok)}
.support-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:28px;align-items:start;margin-bottom:60px}
.donate{display:flex;flex-direction:column;gap:16px}
.seg{display:grid;grid-template-columns:1fr 1fr;background:var(--surface-2);padding:4px;border-radius:var(--r)}
.seg input,.amt input{position:absolute;opacity:0;pointer-events:none}
.seg span{display:block;text-align:center;padding:9px;border-radius:var(--r-sm);cursor:pointer;font-weight:600}
.seg input:checked + span{background:var(--surface);box-shadow:0 1px 3px rgba(0,0,0,.12)}
.seg input:focus-visible + span,.amt input:focus-visible + span{outline:3px solid var(--accent)}
.amounts{display:grid;grid-template-columns:repeat(auto-fit,minmax(80px,1fr));gap:8px}
.amt span{display:block;text-align:center;padding:14px 6px;border:1.5px solid var(--line-2);border-radius:var(--r);cursor:pointer;font:700 1.2rem var(--display)}
.amt input:checked + span{border-color:var(--accent);background:var(--accent-soft);color:var(--accent-2)}
:root[data-theme="dark"] .amt input:checked + span{color:var(--accent)}
.money{display:flex;align-items:center;border:1px solid var(--line-2);border-radius:var(--r);background:var(--bg);padding-inline-start:12px}
.money input{border:0!important;box-shadow:none!important;background:transparent!important}
.where ul{list-style:none;padding:0;margin:0 0 18px}
.where li{display:flex;flex-direction:column;padding:14px 0;border-bottom:1px solid var(--line)}
.where li span{color:var(--ink-2);font-size:.95rem}
.center-block{text-align:center;padding:60px 20px 80px}
.big-code{font:700 6rem/1 var(--display);color:var(--accent);margin:0 0 10px}

/* ---------- ads */
.adbox{margin:28px 0;text-align:center;min-height:120px;position:relative}
.adbox-label{display:block;font-size:.72rem;color:var(--ink-3);margin-bottom:4px}
.ad-side{margin:0}

/* ---------- footer */
.ftr{background:var(--surface);border-top:1px solid var(--line);margin-top:20px}
.ftr-in{max-width:var(--w);margin:0 auto;padding:44px 20px 24px;display:grid;grid-template-columns:1.3fr repeat(4,1fr);gap:28px}
.ftr-brand p{color:var(--ink-2);font-size:.93rem;margin:12px 0 14px;max-width:30ch}
.btn-support{background:var(--accent-soft);color:var(--accent-2)}
:root[data-theme="dark"] .btn-support{color:var(--accent)}
.btn-support .ic{fill:currentColor}
.ftr-col h2{font-size:.95rem;margin-bottom:10px}
.ftr-col h2 a{color:var(--ink);text-decoration:none}
.ftr-col ul{list-style:none;margin:0;padding:0}
.ftr-col a{color:var(--ink-2);text-decoration:none;font-size:.88rem;line-height:2}
.ftr-col a:hover{color:var(--ink);text-decoration:underline}
.ftr-bar{max-width:var(--w);margin:0 auto;padding:18px 20px 28px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;font-size:.86rem;color:var(--ink-3)}
.ftr-bar nav,.ftr-langs{display:flex;flex-wrap:wrap;gap:6px 16px}
.ftr-bar a,.ftr-bar .linkbtn{color:var(--ink-2);text-decoration:none}
.ftr-bar a:hover{text-decoration:underline}
.ftr-langs a[aria-current]{color:var(--ink);font-weight:600}
.ftr-bar p{margin:0;width:100%}

.consent{position:fixed;inset-inline:16px;bottom:16px;z-index:90;max-width:560px;margin-inline-start:auto;background:var(--surface);border:1px solid var(--line-2);border-radius:var(--r-lg);padding:16px 18px;box-shadow:0 20px 50px -20px rgba(0,0,0,.45);display:flex;flex-direction:column;gap:12px}
.consent p{margin:0;font-size:.92rem;color:var(--ink-2)}
.consent-btns{display:flex;gap:8px;justify-content:flex-end}

/* =================== TOOLKIT (instrument UI used by every tool) =================== */
.tk-bar{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:18px}
.tk-bar .grow{flex:1}
.tk-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px;margin:16px 0 0}
.tk-stat{background:var(--surface-2);border-radius:var(--r);padding:12px 14px;min-width:0}
.tk-stat dt{font-size:.78rem;color:var(--ink-3);font-weight:500}
.tk-stat dd{margin:2px 0 0;font:700 1.45rem/1.2 var(--display);font-variant-numeric:tabular-nums;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tk-stat dd small{font-size:.8rem;font-weight:500;color:var(--ink-3);margin-inline-start:3px}
.tk-stat.hl{background:var(--ink);color:var(--bg)}
.tk-stat.hl dt,.tk-stat.hl dd small{color:color-mix(in srgb,var(--bg) 70%,transparent)}
.tk-status{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:.93rem;padding:6px 12px;border-radius:999px;background:var(--surface-2);color:var(--ink-2)}
.tk-status::before{content:"";width:8px;height:8px;border-radius:50%;background:currentColor}
.tk-status.live{color:var(--accent);background:var(--accent-soft)}
.tk-status.ok{color:var(--ok);background:var(--ok-soft)}
.tk-status.warn{color:var(--warn);background:var(--warn-soft)}
.tk-status.bad{color:var(--bad);background:var(--bad-soft)}
.tk-msg{padding:14px 16px;border-radius:var(--r);background:var(--surface-2);color:var(--ink-2);margin:12px 0}
.tk-msg.bad{background:var(--bad-soft);color:var(--bad)}
.tk-msg.ok{background:var(--ok-soft);color:var(--ok)}
.tk-stage{position:relative;background:var(--bench);color:var(--bench-ink);border-radius:var(--r);overflow:hidden;min-height:260px;user-select:none;-webkit-user-select:none;touch-action:none}
.tk-stage canvas{display:block;width:100%;height:100%}
.tk-hint{position:absolute;inset:0;display:grid;place-items:center;text-align:center;color:#9FB0BF;font-weight:500;padding:20px;pointer-events:none}
.tk-meter{height:16px;background:var(--surface-2);border-radius:999px;overflow:hidden;position:relative}
.tk-meter > i{position:absolute;inset-block:0;inset-inline-start:0;width:0;background:linear-gradient(90deg,var(--ok),#E3B341 75%,var(--bad));border-radius:inherit;transition:width .06s linear}
.tk-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.tk-field{display:flex;flex-direction:column;gap:5px;font-size:.86rem;font-weight:500;color:var(--ink-2);min-width:160px}
.tk-field select,.tk-field input{min-height:40px;padding:8px 10px}
.tk-range{width:100%;accent-color:var(--accent)}
.tk-table{width:100%;border-collapse:collapse;font-size:.93rem}
.tk-table th,.tk-table td{text-align:start;padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:top}
.tk-table th{width:40%;color:var(--ink-2);font-weight:500}
.tk-table td{font-variant-numeric:tabular-nums;word-break:break-word}
.tk-grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.tk-big{font:700 clamp(2.6rem,2rem + 3vw,4.2rem)/1 var(--display);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.tk-big small{font-size:.35em;font-weight:600;color:var(--ink-3);margin-inline-start:6px}
.tk-center{text-align:center}
.tk-log{max-height:180px;overflow:auto;font:500 .85rem/1.6 ui-monospace,Menlo,Consolas,monospace;background:var(--surface-2);border-radius:var(--r);padding:10px 12px;color:var(--ink-2)}
.tk-chipset{display:flex;flex-wrap:wrap;gap:6px}
.tk-chipset button{border:1px solid var(--line-2);background:var(--surface);color:var(--ink);padding:7px 12px;border-radius:999px;cursor:pointer;font:500 .88rem var(--font)}
.tk-chipset button[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.tk-fs{position:fixed;inset:0;z-index:200;cursor:none}
.tk-fs-hint{position:fixed;top:14px;left:50%;transform:translateX(-50%);z-index:201;background:rgba(0,0,0,.65);color:#fff;padding:8px 14px;border-radius:999px;font-size:.85rem;pointer-events:none;transition:opacity .4s}

/* keyboard */
.kb{display:flex;flex-direction:column;gap:5px;background:var(--bench);padding:14px;border-radius:var(--r);overflow-x:auto;direction:ltr}
.kb-row{display:flex;gap:5px}
.kb-key{flex:0 0 auto;width:calc(var(--u,1) * 42px + (var(--u,1) - 1) * 5px);height:44px;border-radius:7px;background:var(--bench-2);color:#9FB0BF;border:1px solid var(--bench-line);display:flex;align-items:flex-end;padding:5px 7px;font:600 .72rem/1 var(--font);white-space:nowrap;overflow:hidden;transition:background .08s}
.kb-key.hit{background:#1E5B45;color:#C6F2DC;border-color:#2D7A5D}
.kb-key.down{background:var(--accent);color:#fff;border-color:var(--accent)}
.kb-gap{width:20px;flex:none}
/* gamepad */
.gp-wrap{display:grid;grid-template-columns:1.2fr 1fr;gap:16px}
.gp-sticks{display:flex;gap:16px;flex-wrap:wrap}
.gp-stick{width:150px;height:150px;border-radius:50%;background:var(--bench);position:relative;flex:none}
.gp-stick i{position:absolute;width:22px;height:22px;border-radius:50%;background:var(--accent);left:50%;top:50%;transform:translate(-50%,-50%)}
.gp-stick b{position:absolute;inset:50% auto auto 50%;width:1px;height:1px}
.gp-btns{display:grid;grid-template-columns:repeat(auto-fill,minmax(64px,1fr));gap:6px}
.gp-btn{background:var(--surface-2);border-radius:var(--r-sm);padding:8px 6px;text-align:center;font:600 .78rem var(--font);position:relative;overflow:hidden;color:var(--ink-2)}
.gp-btn > i{position:absolute;inset:auto 0 0 0;height:0;background:var(--accent);opacity:.85}
.gp-btn span{position:relative}
.gp-btn.on{color:#fff}

/* ---------- responsive */
@media (max-width:1000px){
  .hero-in{grid-template-columns:1fr;gap:32px;padding-top:36px;padding-bottom:40px}
  .two-col{grid-template-columns:1fr;gap:30px}
  .side{position:static}
  .why-grid{grid-template-columns:1fr 1fr}
  .ftr-in{grid-template-columns:1fr 1fr}
  .ftr-brand{grid-column:1/-1}
  .gp-wrap{grid-template-columns:1fr}
}
@media (max-width:860px){
  .burger{display:inline-flex}
  .nav{position:fixed;inset:64px 0 0 0;background:var(--surface);flex-direction:column;align-items:stretch;padding:12px 16px 40px;gap:2px;overflow:auto;display:none}
  .hdr.menu-open .nav{display:flex}
  .nav-link{height:48px;font-size:1.05rem}
  .nav-support{margin:8px 0 0}
  .mega{position:static;box-shadow:none;border:0;padding:4px 0 10px;grid-template-columns:1fr 1fr;background:none}
  .has-mega.open .mega{display:grid}
  .hdr-in{gap:12px}
}
@media (max-width:640px){
  .wrap{padding:0 16px}
  .hdr-in{padding:0 12px}
  .logo span{font-size:.95rem}
  .guide-list,.grid2,.support-grid,.tk-grid2{grid-template-columns:1fr}
  .why-grid{grid-template-columns:1fr}
  .mega{grid-template-columns:1fr}
  .bench{padding:14px;border-radius:var(--r)}
  .bench-wrap{padding:16px 0 12px}
  .tool-head,.page-head{gap:14px}
  .tool-ic.big,.cat-ic.big{width:46px;height:46px}
  .tool-go{display:none}
  .verify-card{flex-wrap:wrap}
  .ftr-in{grid-template-columns:1fr 1fr;gap:20px}
  .tk-stat dd{font-size:1.2rem}
  .lang-btn span{display:none}
}
@media (max-width:380px){ .logo span{display:none} }
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.pulse path{stroke-dashoffset:0}}
@media print{.hdr,.ftr,.adbox,.consent,.side,.crumbs,.badges{display:none!important}body{background:#fff}}
/* reset inputs that live inside custom fields */
.hero-search input,.search-field input,.money input{border:0!important;background:transparent!important;box-shadow:none!important;padding:0!important;min-height:0!important;border-radius:0!important}
.money input{padding:11px 13px!important}

[dir=rtl] .readout-grid dd{text-align:right}

/* ---------- tool page footer row + share dialog ---------- */
.bench-foot{display:flex;align-items:center;justify-content:center;gap:12px 20px;flex-wrap:wrap;margin-top:12px}
.bench-foot .badges.small{margin-top:0}
.share-dlg{border:0;padding:0;border-radius:var(--r-lg);background:var(--surface);color:var(--ink);width:min(520px,calc(100% - 32px));box-shadow:0 30px 80px -24px rgba(10,20,30,.5)}
.share-dlg::backdrop{background:rgba(13,19,24,.55)}
.share-box{padding:24px;position:relative}
.share-box h2{margin:0 0 6px;font-size:1.25rem}
.share-x{position:absolute;top:10px;inset-inline-end:12px;border:0;background:none;font-size:1.6rem;line-height:1;color:var(--ink-3);cursor:pointer;padding:6px}
.share-msg{color:var(--ink-2);margin:0 0 12px;min-height:1.2em}
.share-link{display:flex;gap:8px}
.share-link input{flex:1;min-width:0;font:inherit;padding:10px 12px;border:1px solid var(--line-2);border-radius:var(--r);background:var(--surface-2);color:var(--ink)}
.share-more{display:flex;gap:8px;margin-top:10px}
.share-hint{color:var(--ink-3);margin:14px 0 0}

/* ---------- shared result page ---------- */
.result-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;margin:8px 0 0;border-top:4px solid var(--cat,var(--accent))}
.result-head{display:flex;gap:16px;align-items:flex-start}
.result-head h1{margin:2px 0 4px;font-size:clamp(1.5rem,3vw,2rem)}
.result-eyebrow{margin:0;color:var(--cat,var(--accent));font-weight:600;font-size:.9rem}
.result-stats{margin-top:22px}
.result-stats dd{font:700 1.5rem var(--display)}
.result-note{background:var(--surface-2);padding:12px 14px;border-radius:var(--r);margin:16px 0 0}
.result-cta{display:flex;flex-wrap:wrap;align-items:center;gap:12px 18px;margin-top:24px;padding-top:20px;border-top:1px solid var(--line)}

/* ---------- full device check ---------- */
.check-ic{background:var(--accent-soft);color:var(--accent-2)}
:root[data-theme="dark"] .check-ic{color:var(--accent)}
.dc{display:grid;grid-template-columns:240px minmax(0,1fr);gap:0;padding:0;overflow:hidden}
.dc-steps{list-style:none;margin:0;padding:14px 10px;background:var(--surface-2);border-inline-end:1px solid var(--line);counter-reset:dc}
.dc-steps li{display:grid;grid-template-columns:12px 18px 1fr auto;align-items:center;gap:9px;padding:7px 10px;border-radius:var(--r-sm);color:var(--ink-2);font-size:.92rem;cursor:default}
.dc-steps li[tabindex="0"]{cursor:pointer}
.dc-steps li .dc-kind{font-size:.7rem;color:var(--ink-3);font-weight:400}
.dc-steps li .dc-kind.k-auto{width:7px;height:7px;border-radius:50%;background:var(--link);font-size:0;opacity:.6}
.dc-steps li .dc-kind.k-manual{display:none}
.dc-dot{width:10px;height:10px;border-radius:50%;border:2px solid var(--line-2);background:var(--surface)}
.dc-steps li.cur{background:var(--surface);color:var(--ink);font-weight:600;box-shadow:0 1px 0 var(--line)}
.dc-steps li.cur .dc-dot{border-color:var(--accent);background:var(--accent)}
.dc-steps li.is-pass .dc-dot{background:var(--ok);border-color:var(--ok)}
.dc-steps li.is-fail .dc-dot{background:var(--bad);border-color:var(--bad)}
.dc-steps li.is-info .dc-dot{background:var(--link);border-color:var(--link)}
.dc-steps li.is-skip .dc-dot{background:var(--line-2);border-color:var(--line-2)}
.dc-panel{padding:26px 28px;min-height:420px;display:flex;flex-direction:column}
.dc-panel > h2{display:flex;align-items:center;gap:10px;margin:6px 0 6px;font-size:1.5rem}
.dc-head{display:flex;align-items:center;gap:12px}
.dc-badge{font-size:.78rem;font-weight:600;padding:3px 10px;border-radius:999px;background:var(--surface-2);color:var(--ink-2)}
.dc-badge.auto{background:color-mix(in srgb,var(--link) 14%,transparent);color:var(--link)}
.dc-badge.manual{background:var(--accent-soft);color:var(--accent-2)}
:root[data-theme="dark"] .dc-badge.manual{color:var(--accent)}
.dc-text{color:var(--ink-2);max-width:62ch;margin:0 0 16px}
.dc-body{flex:1}
.dc-foot{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:22px;padding-top:16px;border-top:1px solid var(--line)}
.dc-foot .grow{flex:1}
.dc-fail:hover{border-color:var(--bad);color:var(--bad)}
.dc-intro h2{font-size:1.2rem;margin:14px 0 12px}
.dc-used{display:inline-flex;align-items:center;gap:8px;margin:0;padding:6px 12px;border-radius:999px;background:var(--ok-soft);color:var(--ok);font-weight:600;font-size:.9rem}
.dc-grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:8px}
.dc-grid li{display:flex;align-items:center;gap:9px;padding:10px 12px;border:1px solid var(--line);border-radius:var(--r);font-size:.93rem}
.dc-grid .ic{color:var(--ink-3)}
.dc-start{display:flex;flex-wrap:wrap;align-items:center;gap:12px 18px;margin-top:22px}
.dc-start .muted{display:inline-flex;align-items:center;gap:6px}
.dc-progress{height:8px;border-radius:99px;background:var(--surface-2);overflow:hidden;max-width:420px}
.dc-progress span{display:block;height:100%;width:0;background:var(--accent);transition:width .12s linear}
.dc-count{font-weight:600;margin:0 0 10px}
.dc-keys{display:flex;flex-wrap:wrap;gap:6px;min-height:44px;padding:10px;border:1px dashed var(--line-2);border-radius:var(--r)}
.dc-keys kbd{font:600 .82rem var(--font);padding:5px 9px;border-radius:6px;background:var(--bench);color:var(--bench-ink);animation:dcpop .18s ease-out}
@keyframes dcpop{from{transform:scale(.7);opacity:.3}}
.dc-area{display:grid;place-items:center;height:180px;border:2px dashed var(--line-2);border-radius:var(--r);color:var(--ink-3);user-select:none;cursor:crosshair}
.dc-marks{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.dc-mark{padding:6px 12px;border-radius:999px;border:1px solid var(--line-2);color:var(--ink-3);font-size:.88rem}
.dc-mark.on{background:var(--ok-soft);border-color:var(--ok);color:var(--ok);font-weight:600}
.dc-canvas{display:block;width:100%;height:260px;border:2px dashed var(--line-2);border-radius:var(--r);touch-action:none;background:var(--surface-2)}
.dc-row{display:flex;flex-wrap:wrap;gap:10px}
.dc-meter{height:16px;border-radius:99px;background:var(--surface-2);overflow:hidden;max-width:460px}
.dc-meter span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--ok),var(--warn) 75%,var(--bad));transition:width .06s linear}
.dc-video{display:block;width:100%;max-width:520px;border-radius:var(--r);background:#000;aspect-ratio:16/9;object-fit:cover}
.dc-fs{position:fixed;inset:0;z-index:1000;cursor:pointer;display:grid;place-items:center}
.dc-fs-hint{background:rgba(0,0,0,.6);color:#fff;padding:10px 16px;border-radius:var(--r);font-size:.95rem;transition:opacity .3s}
.dc-rep-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;flex-wrap:wrap}
.dc-rep-head h2{margin:0;font-size:1.4rem}
.dc-sum{display:flex;gap:8px;flex-wrap:wrap;margin:4px 0 0}
.st{display:inline-block;font-size:.82rem;font-weight:600;padding:3px 10px;border-radius:999px;white-space:nowrap}
.st-pass{background:var(--ok-soft);color:var(--ok)}
.st-fail{background:var(--bad-soft);color:var(--bad)}
.st-skip{background:var(--surface-2);color:var(--ink-3)}
.st-info{background:color-mix(in srgb,var(--link) 14%,transparent);color:var(--link)}
.dc-table{width:100%;border-collapse:collapse;margin-top:18px;font-size:.95rem}
.dc-table th,.dc-table td{padding:10px 8px;border-bottom:1px solid var(--line);text-align:start;vertical-align:middle}
.dc-table th{font-weight:600;white-space:nowrap}
.dc-table th .ic{color:var(--ink-3);margin-inline-end:8px;vertical-align:-3px}
.dc-table td.small{color:var(--ink-2)}
.dc-link{text-align:end!important;white-space:nowrap;font-size:.88rem}
.dc-notes{display:grid;gap:6px;margin-top:16px;font-weight:600;font-size:.92rem}
.dc-notes textarea{font:inherit;font-weight:400;padding:10px 12px;border:1px solid var(--line-2);border-radius:var(--r);background:var(--surface);color:var(--ink);resize:vertical}
.dc-print-note{display:none}
.checklist{list-style:none;padding:0!important}
.checklist li{display:grid;grid-template-columns:22px 1fr;gap:10px;align-items:start}
.checklist li .ic{color:var(--ok);margin-top:5px}
@media (max-width:820px){
  .dc{grid-template-columns:1fr}
  .dc-steps{display:flex;overflow-x:auto;gap:4px;padding:8px;border-inline-end:0;border-bottom:1px solid var(--line);scrollbar-width:none}
  .dc-steps li{grid-template-columns:10px auto;flex:none;padding:6px 10px}
  .dc-steps li .ic,.dc-steps li .dc-kind{display:none}
  .dc-steps:not(.on){display:none}
  .dc-panel{padding:20px 18px;min-height:360px}
  .dc-link{display:none}
}
@media print{
  body *{visibility:hidden}
  .dc-report,.dc-report *{visibility:visible}
  .dc-report{position:absolute;inset:0 0 auto 0;padding:0}
  .dc-foot,.dc-notes,.dc-link{display:none!important}
  .dc-print-note{display:block;margin-top:14px}
  .dc-print-note:empty{display:none}
  .st{border:1px solid currentColor}
}

/* ---------- scripts without bundled web fonts: use the best system fonts ---------- */
html[lang="ja"]{--font:"Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans JP","Yu Gothic UI","Yu Gothic",Meiryo,system-ui,sans-serif;--display:"Space Grotesk","Hiragino Sans","Noto Sans JP","Yu Gothic UI",Meiryo,sans-serif}
html[lang="hi"]{--font:Inter,"Noto Sans Devanagari","Nirmala UI",Mangal,"Kohinoor Devanagari",system-ui,sans-serif;--display:"Space Grotesk","Noto Sans Devanagari","Nirmala UI","Kohinoor Devanagari",sans-serif}
html[lang="ja"] body,html[lang="hi"] body{line-height:1.75}
html[lang="ja"] h1,html[lang="ja"] h2,html[lang="hi"] h1,html[lang="hi"] h2{letter-spacing:0;line-height:1.35}
/* 12 languages: two-column language menu */
.langdd-menu{grid-template-columns:repeat(2,minmax(150px,1fr));gap:2px;min-width:340px}
.langdd.open .langdd-menu{display:grid}
@media (max-width:520px){.langdd-menu{min-width:0;width:min(340px,calc(100vw - 32px))}}

/* ---------- Typing test */
.ty-box{position:relative;height:9.6em;overflow:hidden;background:var(--surface-2);border-radius:var(--r);padding:14px 18px;font:500 clamp(1.15rem,1rem + .6vw,1.5rem)/1.6 var(--font);cursor:text}
.ty-words{transition:transform .18s ease;color:var(--ink-3);word-wrap:break-word}
.ty-words span{border-radius:4px;padding:0 1px}
.ty-words span.cur{color:var(--ink);background:var(--accent-soft);box-shadow:inset 0 -2px 0 var(--accent)}
.ty-words span.ok{color:var(--ok)}
.ty-words span.bad{color:var(--bad);text-decoration:line-through;text-decoration-thickness:2px}
.ty-words i{font-style:normal}
.ty-input{width:100%;margin-top:12px;min-height:52px;font:500 1.2rem var(--font);padding:10px 14px}
.ty-input.bad{border-color:var(--bad);box-shadow:0 0 0 3px var(--bad-soft)}
/* ---------- Reaction time */
.rt-stage{width:100%;height:300px;border:0;display:grid;place-items:center;cursor:pointer;font:inherit;transition:background-color .06s}
.rt-stage #rtSub{display:inline-block;margin-top:8px;font-weight:600;opacity:.85}
.rt-idle{background:#1F5E99;color:#fff}
.rt-wait{background:#B3261E;color:#fff}
.rt-go{background:#1E8E5A;color:#fff}
.rt-early{background:#A86414;color:#fff}
.rt-result{background:var(--bench);color:var(--bench-ink)}
.rt-rounds{display:inline-flex;gap:6px}
.rt-rounds i{width:12px;height:12px;border-radius:50%;background:var(--line-2)}
.rt-rounds i.on{background:var(--accent)}
.rt-hist{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}
.rt-hist span{background:var(--surface-2);border-radius:999px;padding:4px 10px;font-size:.86rem;font-variant-numeric:tabular-nums}
/* ---------- Input lag */
.il-stage{width:100%;height:260px;border:0;display:grid;place-items:center;cursor:pointer;font:inherit}
.il-stage.flash{background:#fff;color:#000}
.il-cam{width:100%;height:220px;border:0;display:grid;place-items:center;cursor:pointer;margin-top:10px}
.il-cam.on{background:#fff}
.il-clock{font:700 3rem/1 ui-monospace,Menlo,Consolas,monospace;color:#9FB0BF;font-variant-numeric:tabular-nums}
.il-cam.on .il-clock{color:#000}
.il-steps{margin:0 0 6px;padding-inline-start:1.3em;color:var(--ink-2)}
.il-steps li{margin:4px 0}
/* ---------- Backlight bleed */
.bl-stage{height:340px;background:#000;cursor:crosshair}
.bl-stage.tk-fs{cursor:crosshair}
.bl-cell{position:absolute;width:33.333%;height:33.333%;outline:1px solid rgba(128,128,128,.55);pointer-events:none}
.bl-mark{position:absolute;width:38px;height:38px;margin:-19px 0 0 -19px;border:2px solid #E8590C;border-radius:50%;cursor:pointer;box-shadow:0 0 0 2px rgba(0,0,0,.4)}
/* ---------- Monitor calibration */
.cal-nav{display:flex;gap:6px;list-style:none;margin:0;padding:0}
.cal-nav button{width:34px;height:34px;border-radius:50%;border:1px solid var(--line-2);background:var(--surface);color:var(--ink);font:600 .9rem var(--font);cursor:pointer}
.cal-nav button[aria-current="step"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.cal-nav button.is-ok{border-color:var(--ok);color:var(--ok)}
.cal-nav button.is-adjust{border-color:var(--warn);color:var(--warn)}
.cal-nav button[aria-current="step"].is-ok,.cal-nav button[aria-current="step"].is-adjust{color:var(--bg)}
.cal-title{margin:4px 0 4px;font:600 1.15rem var(--display)}
.cal-desc{margin:0 0 12px;color:var(--ink-2)}
.cal-stage{height:320px;background:#000}
/* ---------- Hearing test */
.ht-stage{min-height:150px;display:grid;place-items:center;margin-top:12px}
.ht-now{text-align:center}
.ht-now #htS{color:#9FB0BF;font-weight:600}
.ht-heard{min-width:220px;min-height:56px;font-size:1.1rem}
.ht-chart{height:240px;margin-top:16px;background:var(--surface-2);border-radius:var(--r)}
@media (max-width:640px){.rt-stage{height:240px}.bl-stage,.cal-stage{height:240px}.il-clock{font-size:2.2rem}}
/* ---------- Benchmark rankings */
.empty-state{text-align:center;padding:48px 20px;background:var(--surface);border:1px dashed var(--line-2);border-radius:var(--r-lg);color:var(--ink-2);margin:10px 0 30px}
.empty-state .ic{color:var(--accent)}
.empty-state h2{margin:10px 0 6px;color:var(--ink)}
.bench-table-wrap{overflow-x:auto;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);margin-top:8px}
.bench-table{width:100%;border-collapse:collapse;font-size:.94rem;min-width:640px}
.bench-table th,.bench-table td{padding:10px 14px;border-bottom:1px solid var(--line);text-align:start;vertical-align:middle}
.bench-table thead th{font-size:.8rem;font-weight:600;color:var(--ink-3);background:var(--surface-2)}
.bench-table tbody tr:last-child td{border-bottom:0}
.bench-table .rank{width:44px;color:var(--ink-3);font-variant-numeric:tabular-nums}
.bench-table .dev a{font-weight:600;display:block}
.bench-table .dev .muted{font-size:.82rem}
.bench-table .num{position:relative;font-variant-numeric:tabular-nums;min-width:120px}
.bench-table .num b{position:relative;font-weight:600}
.bench-table .bar,.bench-bars .bar{position:absolute;inset-block:8px;inset-inline-start:8px;width:calc((100% - 16px) * var(--w) / 100);background:var(--surface-2);border-radius:6px}
.bench-table td.on .bar{background:var(--accent-soft)}
.bench-table th.on{color:var(--accent)}
.bench-table td.num b{padding-inline-start:4px}
.bench-tiles{margin:6px 0 26px}
.bench-tiles .pct{margin:4px 0 0;font-size:.8rem;color:var(--ink-3)}
.bench-tiles .tk-stat.hl .pct{color:color-mix(in srgb,var(--bg) 70%,transparent)}
.bench-bars{list-style:none;margin:0 0 20px;padding:0;display:grid;gap:6px}
.bench-bars li{position:relative;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;padding:9px 12px;align-items:center}
.bench-bars li .bar{inset:0;width:calc(100% * var(--w) / 100);border-radius:var(--r);z-index:0}
.bench-bars li > a,.bench-bars li > b{position:relative;z-index:1}
.bench-bars li.me .bar{background:var(--accent-soft)}
.bench-bars li.me a{color:var(--accent-2);font-weight:700}
.bench-bars a{text-decoration:none;color:var(--ink)}
.bench-bars b{font-variant-numeric:tabular-nums}
.cta-box .btn{width:100%;justify-content:center}
.small{font-size:.86rem}
.tk-table.cols th{width:auto}
.tk-table.cols td{white-space:nowrap;word-break:normal}
.tk-table.cols td:first-child{white-space:normal}
/* ---------- Troubleshooter */
.fx{margin:6px 0 30px}
.fx-search{display:flex;align-items:center;gap:10px;background:var(--surface);border:1px solid var(--line-2);border-radius:var(--r-lg);padding:4px 16px;max-width:680px;color:var(--ink-3)}
.fx-search:focus-within{border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-soft)}
.fx-search input{border:0;box-shadow:none;background:transparent;flex:1;min-height:50px;font-size:1.05rem;padding:0}
.fx-search input:focus{box-shadow:none}
.fx-list{list-style:none;padding:0;margin:18px 0 0;display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:10px}
.fx-list a{display:flex;align-items:center;gap:12px;padding:14px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);color:var(--ink);text-decoration:none;font-weight:600;height:100%}
.fx-list a:hover{border-color:var(--accent)}
.fx-list .tool-ic{flex:none}
.fx-run{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:18px 22px;max-width:820px;scroll-margin-top:80px}
.fx-head{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.fx-head strong{font:600 1.05rem var(--display)}
.fx-steps{display:flex;gap:6px;list-style:none;margin:0 0 0 auto;padding:0}
.fx-steps li{width:26px;height:6px;border-radius:3px;background:var(--line-2)}
.fx-steps li.done{background:var(--accent-soft)}
.fx-steps li.on{background:var(--accent)}
.fx-card{padding:26px 0 10px}
.fx-card h2{font:600 clamp(1.3rem,1.1rem + .8vw,1.7rem)/1.3 var(--display);margin:4px 0 18px;outline:none}
.fx-label{margin:0;font-size:.85rem;font-weight:600;color:var(--accent-2)}
.fx-yn{display:flex;flex-wrap:wrap;gap:10px}
.fx-yn .btn-lg{min-width:130px;justify-content:center}
.fx-try{margin:18px 0 0;color:var(--ink-2);font-size:.95rem}
.fx-out p:not(.fx-label){color:var(--ink-2);margin:0 0 18px;max-width:60ch}
.fx-out h2{margin-bottom:8px}
.fx-guide{margin:12px 0 0 !important;font-size:.88rem}
.fx-foot{display:flex;justify-content:space-between;padding-top:14px;border-top:1px solid var(--line);margin-top:16px}
:root[data-theme="dark"] .fx-label{color:var(--accent)}
.mega-extra{grid-column:1/-1;display:inline-flex;align-items:center;gap:8px;justify-self:start;font-weight:600;color:var(--accent-2);text-decoration:none;padding-top:10px;border-top:1px solid var(--line);width:100%}
:root[data-theme="dark"] .mega-extra{color:var(--accent)}
.bench-table .bar{inset-block:auto 8px;height:5px;border-radius:3px;background:var(--line)}
.bench-table td.on .bar{background:var(--accent)}
.bench-table td.num{padding-bottom:18px}
/* ---------- Embeds */
.embed-code{width:100%;font:500 .82rem/1.5 ui-monospace,Menlo,Consolas,monospace;margin:12px 0;padding:10px 12px;resize:vertical}
.embed-opts{margin-top:4px}
.pt-embed{background:var(--bg)}
.embed-wrap{padding:10px}
.embed-head{display:flex;align-items:center;gap:10px;margin:0 0 10px}
.embed-head .tool-ic{width:32px;height:32px}
.embed-head strong{font:600 1rem var(--display)}
.embed-full{margin-inline-start:auto;font-size:.86rem;font-weight:600}
.embed-wrap .bench{min-height:0;padding:16px}
.embed-foot{text-align:center;font-size:.82rem;margin-top:10px}
.embed-foot a{color:var(--ink-3)}
/* ---------- Guide feedback */
.fb{margin:34px 0 10px;padding:20px 22px;background:var(--surface-2);border-radius:var(--r-lg)}
.fb-ask{display:flex;flex-wrap:wrap;align-items:center;gap:12px 20px}
.fb-ask h2{margin:0;font-size:1.1rem}
.fb-btns{display:flex;gap:8px}
.fb-btns .btn{background:var(--surface)}
.fb-why p{margin:0 0 10px}
.fb-why .tk-chipset button[aria-checked="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.fb-c{display:flex;flex-direction:column;gap:6px;margin:14px 0 12px}
.fb-c textarea{width:100%}
.fb-done{margin:0;font-weight:600;color:var(--ok)}

/* ---------- Korean, Chinese, Vietnamese */
html[lang="ko"]{--font:Inter,"Apple SD Gothic Neo","Malgun Gothic","Noto Sans KR","Nanum Gothic",system-ui,sans-serif;--display:"Space Grotesk","Apple SD Gothic Neo","Malgun Gothic","Noto Sans KR",sans-serif}
html[lang="zh"]{--font:Inter,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,sans-serif;--display:"Space Grotesk","PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif}
html[lang="vi"]{--display:Inter,system-ui,sans-serif}
html[lang="ko"] body,html[lang="zh"] body{line-height:1.75}
html[lang="ko"] h1,html[lang="ko"] h2,html[lang="zh"] h1,html[lang="zh"] h2{letter-spacing:0;line-height:1.35}
html[lang="ko"] .prose,html[lang="ko"] p{word-break:keep-all}