:root{
  --bg:#071013;
  --panel:#0d181c;
  --panel-2:#112228;
  --text:#eef8f6;
  --muted:#9cb1ad;
  --border:#294147;
  --accent:#55e6c1;
  --accent-2:#7fa8ff;
  --danger:#ff7e8f;
  --ok:#61dfa0;
  --warning:#f3c969;
  --shadow:0 18px 48px rgba(0,0,0,.2);
  --radius:14px;
}

html{scroll-behavior:smooth}
body{
  min-height:100vh;
  overflow-x:clip;
  background-color:var(--bg)!important;
  background-image:
    linear-gradient(rgba(85,230,193,.025) 1px,transparent 1px),
    linear-gradient(90deg,rgba(85,230,193,.025) 1px,transparent 1px)!important;
  background-size:32px 32px!important;
  font-variant-numeric:tabular-nums;
}
body::before{
  content:"";
  position:fixed;
  inset:0 0 auto;
  height:280px;
  z-index:-1;
  pointer-events:none;
  background:linear-gradient(180deg,rgba(85,230,193,.055),transparent);
}

.container{width:min(1180px,calc(100% - 40px));padding-top:22px}
.card{
  background:var(--panel)!important;
  border-color:var(--border)!important;
  border-radius:var(--radius)!important;
  box-shadow:0 1px 0 rgba(255,255,255,.025),var(--shadow)!important;
}
h1,h2,h3{letter-spacing:-.025em}
h1{max-width:17ch;font-weight:780}
h2{font-weight:740}
.lead{font-size:clamp(1rem,1.5vw,1.12rem);line-height:1.7}

.site-nav{
  align-items:center;
  gap:4px!important;
  margin-top:0!important;
  padding:7px;
  overflow-x:auto;
  border:1px solid var(--border);
  border-radius:12px;
  background:rgba(7,16,19,.78);
  scrollbar-width:none;
  backdrop-filter:blur(12px);
}
.site-nav::-webkit-scrollbar{display:none}
.site-nav a{
  flex:0 0 auto;
  padding:8px 10px!important;
  border-color:transparent!important;
  border-radius:8px!important;
  background:transparent!important;
  color:var(--muted)!important;
}
.site-nav a:hover{background:rgba(85,230,193,.07)!important;color:var(--text)!important;text-decoration:none}
.site-nav a[aria-current="page"]{background:var(--panel-2)!important;color:var(--accent)!important}
.theme-toggle{margin-left:auto;border-radius:8px!important;white-space:nowrap}

input,select{
  border-radius:10px!important;
  background:#0a1519!important;
  transition:border-color .18s ease,box-shadow .18s ease;
}
button{
  border-radius:10px!important;
  background:var(--accent)!important;
  border-color:var(--accent)!important;
  color:#062019!important;
  box-shadow:none!important;
  transition:transform .16s ease,filter .16s ease,border-color .16s ease;
}
button:hover{filter:brightness(1.06);text-decoration:none}
button:active{transform:translateY(1px)}
button.secondary,.share-btn,.copy-result-btn,.utility-toolbar button,.theme-toggle,#_auto-preset button{
  background:transparent!important;
  border-color:var(--border)!important;
  color:var(--text)!important;
}
button.secondary:hover,.share-btn:hover,.copy-result-btn:hover,.utility-toolbar button:hover,.theme-toggle:hover{
  border-color:var(--accent)!important;
  background:rgba(85,230,193,.07)!important;
}

.result-box{
  border:1px solid var(--border)!important;
  border-left:3px solid var(--accent)!important;
  border-radius:12px!important;
  background:#091519!important;
  box-shadow:inset 0 1px rgba(255,255,255,.025);
}
.result-box .value-big,.result-box .value,.result-box [id$="-value"],.tau-display{
  color:var(--text);
  font-family:var(--mono);
  font-weight:760;
  letter-spacing:-.035em;
}
.result-box[data-result-state]::after{
  content:attr(data-result-label);
  position:absolute;
  top:12px;
  right:12px;
  padding:4px 8px;
  border:1px solid currentColor;
  border-radius:999px;
  font-size:.67rem;
  font-weight:800;
  letter-spacing:.06em;
  text-transform:uppercase;
}
.result-box[data-result-state="success"]{border-left-color:var(--ok)!important}
.result-box[data-result-state="success"]::after{color:var(--ok)}
.result-box[data-result-state="warning"]{border-left-color:var(--warning)!important}
.result-box[data-result-state="warning"]::after{color:var(--warning)}
.result-box[data-result-state="error"]{border-left-color:var(--danger)!important}
.result-box[data-result-state="error"]::after{color:var(--danger)}
.status.ok{color:var(--ok)!important}.status.error{color:var(--danger)!important}

.tool-directory{scroll-margin-top:20px}
.tool-directory__grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))!important}
.tool-card{
  justify-content:flex-start!important;
  min-height:58px!important;
  padding:10px 12px!important;
  border-radius:10px!important;
  background:#0a1519!important;
  transition:transform .16s ease,border-color .16s ease,background-color .16s ease;
}
.tool-card:hover{transform:translateY(-1px);background:rgba(85,230,193,.055)!important}
.tool-card__label{flex:1;min-width:0}
.tool-icon{
  width:30px;
  height:30px;
  flex:0 0 30px;
  padding:6px;
  border:1px solid var(--border);
  border-radius:8px;
  color:var(--accent);
  background:rgba(85,230,193,.045);
}
.tool-card.is-favorite::before{display:none}
.tool-card.is-favorite .tool-icon{color:#f3c969;border-color:#8a743e}

.hub-grid{gap:10px!important}
.hub-card{
  min-height:0!important;
  grid-template-columns:auto 1fr;
  align-items:start;
  gap:4px 12px!important;
  padding:16px!important;
  border-radius:12px!important;
  background:#0a1519!important;
}
.hub-card__icon{grid-row:1 / span 2;width:38px;height:38px;color:var(--accent)!important}
.hub-card strong{font-size:1.05rem!important}
.hub-card > span:last-child{font-size:.91rem}
.hub-tool{display:grid!important;grid-template-columns:auto 1fr;gap:4px 12px!important;align-items:start}
.hub-tool .tool-icon{grid-row:1 / span 2}
.hub-tool strong,.hub-tool > span{grid-column:2}

.homepage .container{width:min(1240px,calc(100% - 40px))}
.home-hero{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(340px,.85fr);
  gap:clamp(30px,6vw,84px);
  align-items:center;
  min-height:500px;
  padding:clamp(54px,8vw,96px) clamp(4px,2vw,24px) 50px;
}
.home-eyebrow{
  margin:0 0 16px;
  color:var(--accent)!important;
  font:750 .73rem/1 var(--mono);
  letter-spacing:.14em;
  text-transform:uppercase;
}
.home-hero h1{font-size:clamp(2.7rem,5vw,4.7rem);line-height:.98;max-width:14ch;margin-bottom:24px}
.home-hero .lead{max-width:58ch}
.home-search{display:flex;gap:8px;max-width:650px;margin-top:28px}
.home-search__field{position:relative;flex:1}
.home-search__field .tool-icon{position:absolute;top:50%;left:12px;transform:translateY(-50%);border:0;background:transparent}
.home-search input{min-height:52px;padding-left:50px!important;background:var(--panel)!important}
.home-search button{width:auto;min-width:128px}
.home-proof{display:flex;gap:22px;flex-wrap:wrap;margin-top:24px;color:var(--muted);font-size:.82rem}
.home-proof span{display:grid;gap:2px}
.home-proof strong{color:var(--text);font:760 1.02rem/1.2 var(--mono)}
.home-hero__board{
  position:relative;
  min-height:350px;
  display:grid;
  place-items:center;
  overflow:hidden;
  border:1px solid var(--border);
  border-radius:18px;
  background:#09171a;
  box-shadow:20px 24px 0 rgba(85,230,193,.035);
}
.home-hero__board::before{
  content:"LIVE CIRCUIT";
  position:absolute;
  top:18px;
  left:20px;
  color:var(--muted);
  font:700 .68rem/1 var(--mono);
  letter-spacing:.12em;
}
.home-hero__board svg{width:min(90%,430px);height:auto;color:var(--accent)}
.home-hero__board .board-muted{stroke:var(--border)}
.home-hero__board .board-node{fill:var(--panel-2);stroke:var(--accent)}
.home-hero__board text{fill:var(--muted);font:600 11px var(--mono)}
.home-popular{margin-bottom:20px}
.home-section-head{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:14px}
.home-section-head p{max-width:54ch}
.home-section-head a{white-space:nowrap;font-weight:700}
.popular-tools{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.popular-tool{
  display:grid;
  grid-template-columns:auto 1fr auto;
  align-items:center;
  gap:12px;
  min-height:76px;
  padding:14px;
  border:1px solid var(--border);
  border-radius:12px;
  background:var(--panel);
  color:var(--text);
  text-decoration:none;
  transition:transform .16s ease,border-color .16s ease;
}
.popular-tool:hover{transform:translateY(-2px);border-color:var(--accent);text-decoration:none}
.popular-tool small{display:block;margin-top:3px;color:var(--muted)}
.popular-tool__arrow{color:var(--accent);font-size:1.15rem}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

html[data-theme="light"]{
  --bg:#f2f7f5;--panel:#ffffff;--panel-2:#e8f0ed;--text:#102522;--muted:#55706b;
  --border:#bfd0cb;--accent:#087d68;--accent-2:#305fb3;--shadow:0 12px 32px rgba(25,55,50,.08);
}
html[data-theme="light"] body{background-color:var(--bg)!important;background-image:linear-gradient(rgba(8,125,104,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(8,125,104,.035) 1px,transparent 1px)!important}
html[data-theme="light"] .site-nav{background:rgba(255,255,255,.82)}
html[data-theme="light"] input,html[data-theme="light"] select,html[data-theme="light"] .tool-card,html[data-theme="light"] .hub-card,html[data-theme="light"] .result-box,html[data-theme="light"] .home-hero__board{background:#f8fbfa!important}
html[data-theme="light"] button{color:#fff!important}
html[data-theme="light"] button.secondary,html[data-theme="light"] .share-btn,html[data-theme="light"] .copy-result-btn,html[data-theme="light"] .utility-toolbar button,html[data-theme="light"] .theme-toggle{color:var(--text)!important}

@media(max-width:900px){
  .home-hero{grid-template-columns:minmax(0,1fr);min-height:0;padding-top:54px}
  .home-hero > *{min-width:0}
  .home-hero__board{width:100%;min-width:0;min-height:280px;order:-1}
  .popular-tools{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:620px){
  .container,.homepage .container{width:min(calc(100% - 24px),1180px)}
  .home-hero{padding-top:30px;gap:30px}
  .home-hero h1{max-width:100%;font-size:clamp(2.45rem,12vw,3.25rem);overflow-wrap:anywhere}
  .home-hero__board{min-height:220px}
  .home-hero__board svg{max-width:100%}
  .home-search{display:grid}
  .home-search button{width:100%}
  .home-proof{gap:16px}
  .popular-tools{grid-template-columns:1fr}
  .home-section-head{align-items:start;flex-direction:column}
  .tool-directory__grid{grid-template-columns:1fr!important}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  button,.tool-card,.popular-tool{transition:none}
}
@media print{
  body{background:#fff!important}
  body::before,.home-hero__board{display:none!important}
}