/* AIUtilBox — clean theme with light and dark modes, built on the logo colours.
   Layout: header with logo + theme toggle, quiet hero with circuit lines, tool workspace card, simple footer. */
:root{
  --paper:#f7f8fb;
  --surface:#ffffff;
  --surface-2:#f2f4f8;
  --ink:#0b1530;
  --muted:#5b6680;
  --line:#e3e7ef;
  --blue:#0172fb;
  --indigo:#3e1fe2;
  --violet:#a01ee6;
  --tint:#eef4ff;
  --tint-indigo:#efecff;
  --tint-violet:#f6ebff;
  --on-accent:#ffffff;
  --shadow-sm:0 1px 2px rgba(11,21,48,.05);
  --shadow:0 1px 2px rgba(11,21,48,.04),0 10px 30px rgba(11,21,48,.07);
  --shadow-lg:0 2px 4px rgba(11,21,48,.04),0 24px 60px rgba(11,21,48,.10);
  --font-display:"Lexend","Segoe UI",system-ui,sans-serif;
  --font-body:"Figtree","Segoe UI",system-ui,sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,Menlo,monospace;
  --radius:16px;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --paper:#0a0e18; --surface:#111726; --surface-2:#161d2f; --ink:#e8edf7; --muted:#97a2ba; --line:#232c40;
    --blue:#4c9dff; --indigo:#8a7bff; --violet:#cf7bff; --tint:#14233f; --tint-indigo:#1d1a40; --tint-violet:#271a3d; --on-accent:#05101f;
    --shadow-sm:0 1px 2px rgba(0,0,0,.3); --shadow:0 1px 2px rgba(0,0,0,.3),0 12px 32px rgba(0,0,0,.35); --shadow-lg:0 2px 4px rgba(0,0,0,.3),0 28px 70px rgba(0,0,0,.5);
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --paper:#0a0e18; --surface:#111726; --surface-2:#161d2f; --ink:#e8edf7; --muted:#97a2ba; --line:#232c40;
  --blue:#4c9dff; --indigo:#8a7bff; --violet:#cf7bff; --tint:#14233f; --tint-indigo:#1d1a40; --tint-violet:#271a3d; --on-accent:#05101f;
  --shadow-sm:0 1px 2px rgba(0,0,0,.3); --shadow:0 1px 2px rgba(0,0,0,.3),0 12px 32px rgba(0,0,0,.35); --shadow-lg:0 2px 4px rgba(0,0,0,.3),0 28px 70px rgba(0,0,0,.5);
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{margin:0}
body{background:var(--paper);color:var(--ink);font-family:var(--font-body);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;transition:background-color .25s,color .25s}
a{color:var(--blue);text-decoration:none;font-weight:600}
a:hover{text-decoration:underline;text-underline-offset:3px}
img{max-width:100%;display:block}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px;border-radius:6px}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
[hidden]{display:none!important}

/* Logo swap by theme */
.logo-dark{display:none!important}
:root[data-theme="dark"] .logo-light{display:none!important}
:root[data-theme="dark"] .logo-dark{display:block!important}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]) .logo-light{display:none!important}
  :root:not([data-theme="light"]) .logo-dark{display:block!important}
}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--surface) 88%,transparent);backdrop-filter:saturate(1.4) blur(12px);-webkit-backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:16px;height:68px}
.brand{display:flex;align-items:center;margin-right:auto}
.brand img{height:38px;width:auto}
.brand:hover{text-decoration:none}
.menu{display:flex;align-items:center;gap:2px;list-style:none;margin:0;padding:0}
.menu a,.menu button{display:block;font:inherit;font-size:15px;font-weight:600;color:var(--muted);background:none;border:0;padding:8px 12px;border-radius:9px;cursor:pointer}
.menu a:hover,.menu button:hover{color:var(--ink);background:var(--surface-2);text-decoration:none}
.menu a[aria-current="page"]{color:var(--ink)}
.has-drop{position:relative}
.drop{position:absolute;top:calc(100% + 10px);left:50%;transform:translateX(-50%);width:540px;display:grid;grid-template-columns:1fr 1fr;gap:4px 16px;padding:14px;background:var(--surface);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-lg)}
.drop h4{margin:4px 8px 6px;font-family:var(--font-mono);font-size:11px;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);font-weight:500}
.drop-col{display:grid;gap:2px;align-content:start}
.drop a{font-size:14.5px;color:var(--ink);padding:7px 8px}
.menu a.nav-cta{color:var(--on-accent);background:var(--blue);padding:8px 16px;margin-left:6px;border-radius:10px}
.menu a.nav-cta:hover{filter:brightness(1.07);background:var(--blue);color:var(--on-accent)}
.nav-tools{display:flex;align-items:center;gap:8px}
.theme-toggle,.burger{display:grid;place-items:center;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer}
.theme-toggle:hover,.burger:hover{background:var(--surface-2)}
.theme-toggle svg{width:18px;height:18px}
.theme-toggle .moon{display:block}.theme-toggle .sun{display:none}
:root[data-theme="dark"] .theme-toggle .moon{display:none}
:root[data-theme="dark"] .theme-toggle .sun{display:block}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]) .theme-toggle .moon{display:none}
  :root:not([data-theme="light"]) .theme-toggle .sun{display:block}
}
.burger{display:none}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);background:radial-gradient(circle,color-mix(in srgb,var(--ink) 9%,transparent) 1px,transparent 1.2px) 0 0/24px 24px,var(--paper)}
.hero canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.hero::after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(90deg,var(--paper) 0%,color-mix(in srgb,var(--paper) 92%,transparent) 40%,color-mix(in srgb,var(--paper) 30%,transparent) 72%,transparent 100%)}
.hero-inner{position:relative;z-index:2;padding-top:84px;padding-bottom:84px}
.hero.small .hero-inner{padding-top:48px;padding-bottom:72px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--muted);background:var(--surface);border:1px solid var(--line);padding:5px 12px 5px 8px;border-radius:999px;box-shadow:var(--shadow-sm)}
.eyebrow i{width:18px;height:18px;border-radius:50%;background:var(--tint);position:relative}
.eyebrow i::after{content:"";position:absolute;inset:6px;border-radius:50%;background:var(--blue)}
.hero h1{font-family:var(--font-display);font-weight:600;font-size:clamp(34px,5.6vw,64px);line-height:1.06;letter-spacing:-.035em;margin:22px 0 16px;max-width:15ch;text-wrap:balance}
.hero.small h1{font-size:clamp(30px,4.4vw,48px);max-width:20ch}
.hero p.lead{font-size:18px;color:var(--muted);max-width:56ch;margin:0 0 30px}
.typed{color:var(--blue);white-space:nowrap;border-right:2px solid var(--blue);padding-right:3px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-stats{display:flex;flex-wrap:wrap;margin-top:40px;font-size:14px;color:var(--muted)}
.hero-stats span{padding:0 26px;border-left:1px solid var(--line)}
.hero-stats span:first-child{padding-left:0;border-left:0}
.hero-stats b{display:block;font-family:var(--font-display);font-weight:600;font-size:24px;color:var(--ink);font-variant-numeric:tabular-nums}
.crumbs{font-size:13.5px;color:var(--muted);margin-bottom:14px}
.crumbs a{color:var(--muted);font-weight:500}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;font:inherit;font-size:15px;font-weight:600;border-radius:10px;padding:11px 18px;border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer;text-decoration:none;box-shadow:var(--shadow-sm);transition:background .15s,border-color .15s,filter .15s}
.btn:hover{text-decoration:none;border-color:color-mix(in srgb,var(--ink) 25%,var(--line))}
.btn-accent,.btn-primary{background:var(--blue);border-color:var(--blue);color:var(--on-accent)}
.btn-accent:hover,.btn-primary:hover{filter:brightness(1.07);border-color:var(--blue)}

/* ---------- Sections ---------- */
section.block{padding:64px 0}
.sec-head{display:flex;justify-content:space-between;align-items:end;gap:16px;flex-wrap:wrap;margin-bottom:26px}
.sec-head h2{font-family:var(--font-display);font-weight:600;font-size:clamp(24px,3vw,32px);letter-spacing:-.025em;margin:6px 0 0;text-wrap:balance}
.sec-head p{margin:6px 0 0;color:var(--muted);max-width:60ch}
.kicker{font-size:13px;font-weight:700;color:var(--blue)}

.tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}
.tool-card{position:relative;display:flex;flex-direction:column;gap:10px;padding:22px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--line);color:var(--ink);box-shadow:var(--shadow-sm);transition:transform .18s,box-shadow .18s,border-color .18s}
.tool-card:hover{text-decoration:none;transform:translateY(-2px);box-shadow:var(--shadow);border-color:color-mix(in srgb,var(--blue) 45%,var(--line))}
.tool-ic{width:42px;height:42px;border-radius:11px;display:grid;place-items:center;font-family:var(--font-mono);font-weight:700;font-size:13px;color:var(--blue);background:var(--tint)}
.tool-card:nth-child(3n+2) .tool-ic{color:var(--indigo);background:var(--tint-indigo)}
.tool-card:nth-child(3n) .tool-ic{color:var(--violet);background:var(--tint-violet)}
.tool-card h3{font-family:var(--font-display);font-size:16.5px;font-weight:600;margin:4px 0 0;letter-spacing:-.01em}
.tool-card p{margin:0;color:var(--muted);font-size:14.5px;flex:1}
.tool-card .go{font-size:14px;font-weight:600;color:var(--blue)}
.badge{position:absolute;top:18px;right:18px;font-size:11.5px;font-weight:700;color:var(--violet);background:var(--tint-violet);border-radius:999px;padding:3px 9px}

.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.feature{padding:24px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}
.feature h3{font-family:var(--font-display);font-weight:600;font-size:16px;margin:14px 0 6px}
.feature p{margin:0;color:var(--muted);font-size:14.5px}
.feature .n{display:inline-grid;place-items:center;width:36px;height:36px;border-radius:10px;font-family:var(--font-mono);font-size:13px;font-weight:700;color:var(--blue);background:var(--tint)}

/* ---------- Tool workspace ---------- */
.panel{position:relative;z-index:3;background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:26px;box-shadow:var(--shadow-lg);margin-top:-40px}
.panel-head{display:flex;justify-content:flex-end;gap:12px;flex-wrap:wrap;margin-bottom:16px}
.panel-head:empty{display:none}
.cols{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.fields{display:grid;gap:14px;align-content:start}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
label.f{display:grid;gap:6px;font-size:13.5px;font-weight:600;color:var(--ink)}
label.f small{font-weight:500;color:var(--muted)}
input[type=text],input[type=number],input[type=email],input[type=url],input[type=search],select,textarea{width:100%;font:inherit;font-size:15px;color:var(--ink);background:var(--surface-2);border:1px solid var(--line);border-radius:10px;padding:10px 12px;transition:border-color .15s,box-shadow .15s,background .15s}
textarea{resize:vertical;min-height:90px}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--blue);background:var(--surface);box-shadow:0 0 0 3px color-mix(in srgb,var(--blue) 20%,transparent)}
.checks{display:flex;flex-wrap:wrap;gap:8px}
.check{display:flex;align-items:center;gap:7px;font-size:14px;font-weight:500;border:1px solid var(--line);border-radius:999px;padding:6px 12px;cursor:pointer;background:var(--surface)}
.check:has(input:checked){border-color:color-mix(in srgb,var(--blue) 50%,var(--line));background:var(--tint)}
.check input{accent-color:var(--blue);margin:0}
.out{display:flex;flex-direction:column;gap:10px;min-width:0}
.out-head,.out-actions{display:flex;justify-content:space-between;align-items:center;gap:8px;flex-wrap:wrap}
.out-label{font-size:13px;font-weight:700;color:var(--muted)}
.output{flex:1;min-height:280px;white-space:pre-wrap;word-wrap:break-word;font-family:var(--font-mono);font-size:13.5px;line-height:1.7;background:var(--surface-2);border:1px solid var(--line);border-radius:12px;padding:16px;margin:0;overflow:auto;color:var(--ink)}
.btns{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.toast{font-size:13px;font-weight:600;color:var(--blue);min-height:1.4em}
.results{display:grid;gap:10px;align-content:start;max-height:700px;overflow:auto;padding-right:2px}
.res{background:var(--surface-2);border:1px solid var(--line);border-radius:12px;padding:14px 16px;display:grid;gap:8px;transition:border-color .15s}
.res:hover{border-color:color-mix(in srgb,var(--blue) 40%,var(--line))}
.res pre{margin:0;white-space:pre-wrap;word-wrap:break-word;font-family:var(--font-body);font-size:15.5px;line-height:1.6}
.res-foot{display:flex;justify-content:space-between;align-items:center;gap:8px}
.cc{font-family:var(--font-mono);font-size:11.5px;color:var(--muted)}
.cc.warn{color:#d9480f;font-weight:600}
.res .btn{padding:5px 12px;font-size:13px}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.stat{border:1px solid var(--line);border-radius:12px;padding:14px;background:var(--surface-2)}
.stat b{display:block;font-family:var(--font-display);font-weight:600;font-size:24px;font-variant-numeric:tabular-nums;color:var(--blue)}
.stat span{font-size:12.5px;color:var(--muted)}
.meter{height:8px;border-radius:99px;background:var(--surface-2);border:1px solid var(--line);overflow:hidden}
.meter i{display:block;height:100%;background:var(--blue);width:0}
.note{font-size:13.5px;color:var(--muted);margin:0}
.tpl-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px}
.tpl{border:1px solid var(--line);border-radius:12px;padding:16px;display:flex;flex-direction:column;gap:8px;background:var(--surface-2)}
.tpl h3{font-family:var(--font-display);font-weight:600;font-size:15.5px;margin:0}
.tpl .kind{font-size:12px;font-weight:700;color:var(--indigo)}
.tpl pre{margin:0;flex:1;white-space:pre-wrap;font-family:var(--font-mono);font-size:12.5px;color:var(--muted);max-height:130px;overflow:auto}
.tpl .btn{padding:6px 12px;font-size:13px}
mark{background:var(--tint-violet);color:var(--violet);border-radius:4px;padding:0 3px}

/* ---------- Content ---------- */
.content{max-width:760px}
.content h2{font-family:var(--font-display);font-weight:600;font-size:24px;letter-spacing:-.02em;margin:44px 0 12px}
.content h3{font-family:var(--font-display);font-weight:600;font-size:18px;margin:26px 0 8px}
.content p,.content li{color:var(--muted)}
.content ul,.content ol{padding-left:22px}
.content b{color:var(--ink)}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px;margin:18px 0}
.step{padding:18px;border:1px solid var(--line);border-radius:14px;background:var(--surface)}
.step b{font-size:12.5px;font-weight:700;color:var(--blue)}
.step p{margin:6px 0 0;font-size:15px;color:var(--ink)}
details{border:1px solid var(--line);border-radius:12px;background:var(--surface);padding:0 18px;margin-bottom:10px}
summary{cursor:pointer;font-weight:600;padding:15px 0}
details p{margin:0 0 15px}
.two{display:grid;grid-template-columns:1.3fr 1fr;gap:24px;align-items:start}
.card{padding:24px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow-sm)}

/* ---------- Directory ---------- */
.dir-search{display:flex;align-items:center;gap:10px;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:6px 6px 6px 16px;max-width:620px;box-shadow:var(--shadow);color:var(--muted)}
.dir-search input{border:0;background:transparent;box-shadow:none!important;padding:10px 0}
.rail{position:sticky;top:68px;z-index:5;background:color-mix(in srgb,var(--paper) 92%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.rail-inner{display:flex;gap:8px;overflow-x:auto;padding:12px 0;scrollbar-width:none}
.rail-inner::-webkit-scrollbar{display:none}
.chip{flex:none;font:inherit;font-size:14px;font-weight:500;border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:999px;padding:7px 14px;cursor:pointer;display:flex;align-items:center;gap:7px}
.chip:hover{background:var(--surface-2)}
.chip .n{font-family:var(--font-mono);font-size:11px;color:var(--muted)}
.chip[aria-pressed="true"]{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.chip[aria-pressed="true"] .n{color:var(--paper);opacity:.7}
.dot{width:8px;height:8px;border-radius:50%}
.toolbar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;padding:22px 0 6px}
.toolbar h2{font-family:var(--font-display);font-weight:600;font-size:20px;margin:0}
.toolbar h2 span{color:var(--muted);font-family:var(--font-body);font-weight:500;font-size:15px}
.controls{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.seg{display:flex;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:var(--surface)}
.seg button{font:inherit;font-size:13px;font-weight:600;border:0;background:transparent;color:var(--muted);padding:8px 12px;cursor:pointer}
.seg button+button{border-left:1px solid var(--line)}
.seg button[aria-pressed="true"]{background:var(--tint);color:var(--blue)}
.controls select{width:auto;font-size:13px;padding:8px 10px}
.dgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:16px;padding:12px 0 40px}
.dcard{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px;display:flex;flex-direction:column;gap:12px;position:relative;box-shadow:var(--shadow-sm)}
.dcard:hover{box-shadow:var(--shadow)}
.dcard-head{display:flex;gap:12px;align-items:flex-start}
.dmono{flex:none;width:44px;height:44px;border-radius:11px;display:grid;place-items:center;font-family:var(--font-display);font-weight:600;font-size:16px;color:#fff}
.dcard h3{font-family:var(--font-display);font-weight:600;font-size:16px;margin:0;line-height:1.25}
.dcat{font-family:var(--font-mono);font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.dcard p{margin:0;color:var(--muted);font-size:14.5px;flex:1}
.dcard-foot{display:flex;align-items:center;justify-content:space-between;gap:8px}
.price{font-size:12px;font-weight:600;border-radius:999px;padding:3px 9px}
.price.free{background:color-mix(in srgb,#16a34a 14%,transparent);color:color-mix(in srgb,#16a34a 80%,var(--ink))}
.price.freemium{background:var(--tint);color:var(--blue)}
.price.paid{background:color-mix(in srgb,#ea580c 14%,transparent);color:color-mix(in srgb,#ea580c 80%,var(--ink))}
.actions{display:flex;gap:6px}
.save{width:34px;height:34px;border-radius:9px;border:1px solid var(--line);background:var(--surface);color:var(--muted);cursor:pointer;display:grid;place-items:center}
.save[aria-pressed="true"]{color:var(--violet);border-color:var(--violet)}
.visit{font-size:13px;font-weight:600;border-radius:9px;padding:7px 12px;background:var(--ink);color:var(--paper)}
.visit:hover{text-decoration:none;background:var(--blue);color:var(--on-accent)}
.pick{position:absolute;top:14px;right:14px;font-size:11px;font-weight:700;color:var(--violet);background:var(--tint-violet);border-radius:999px;padding:2px 8px}
.empty{grid-column:1/-1;text-align:center;padding:50px 20px;color:var(--muted);border:1px dashed var(--line);border-radius:14px}

/* ---------- Footer ---------- */
.site-footer{margin-top:40px;padding:48px 0 30px;background:var(--surface);border-top:1px solid var(--line)}
.foot-logo{display:inline-block}
.foot-logo img{height:34px;width:auto}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}
.foot-grid h4{font-size:13px;font-weight:700;color:var(--ink);margin:0 0 12px}
.foot-grid ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.foot-grid a{color:var(--muted);font-size:14px;font-weight:500}
.foot-grid a:hover{color:var(--ink)}
.foot-grid p{color:var(--muted);font-size:14px;margin:14px 0 0;max-width:34ch}
.foot-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;border-top:1px solid var(--line);margin-top:32px;padding-top:20px;font-size:13px;color:var(--muted)}

/* ---------- Responsive ---------- */
@media (max-width:960px){
  .burger{display:grid}
  .menu{position:absolute;top:68px;left:0;right:0;flex-direction:column;align-items:stretch;background:var(--surface);border-bottom:1px solid var(--line);box-shadow:var(--shadow);padding:10px 20px 18px;display:none}
  .menu.open{display:flex}
  .drop{position:static;transform:none;width:auto;grid-template-columns:1fr;box-shadow:none;border:0;padding:4px 0 8px 10px}
  .menu a.nav-cta{text-align:center;margin:8px 0 0}
  .cols,.two{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .hero::after{background:color-mix(in srgb,var(--paper) 82%,transparent)}
}
@media (max-width:460px){
  .row2{grid-template-columns:1fr}
  .panel{padding:18px}
  .hero-inner{padding-top:56px;padding-bottom:60px}
  .brand img{height:32px}
  .hero-stats span{padding:0 16px}
  .foot-grid{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}