:root{color-scheme:light;--bg:#f4f7fc;--bg2:#e9eff9;--surface:rgba(255,255,255,.72);--surface-solid:#fff;--border:rgba(15,23,42,.12);--text:#0f172a;--muted:#46546a;
--a1:#0e7490;--a2:#6d28d9;--on-accent:#fff;--grad:linear-gradient(120deg,var(--a1),var(--a2));--good:#047857;--warn:#a45207;--bad:#b91c1c;
--good-bg:rgba(4,120,87,.1);--warn-bg:rgba(164,82,7,.1);--bad-bg:rgba(185,28,28,.09);--shadow:0 10px 30px -12px rgba(30,41,90,.25);--glow:rgba(109,40,217,.28);--grid:rgba(15,23,42,.06);
--r:18px;--font:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;--mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
:root[data-theme=dark]{color-scheme:dark;--bg:#070b16;--bg2:#0d1426;--surface:rgba(20,28,50,.62);--surface-solid:#111a30;--border:rgba(160,185,255,.16);--text:#e8eefb;--muted:#a6b4cc;
--a1:#22d3ee;--a2:#a78bfa;--on-accent:#04121f;--good:#34d399;--warn:#fbbf24;--bad:#f87171;--good-bg:rgba(52,211,153,.12);--warn-bg:rgba(251,191,36,.12);--bad-bg:rgba(248,113,113,.12);
--shadow:0 14px 40px -16px rgba(0,0,0,.7);--glow:rgba(34,211,238,.28);--grid:rgba(160,185,255,.07)}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font:16px/1.6 var(--font);color:var(--text);background:var(--bg);min-height:100vh;overflow-x:hidden;transition:background-color .3s,color .3s}
h1,h2,h3{line-height:1.15;margin:0 0 .5em;letter-spacing:-.02em}h1{font-size:clamp(2rem,6vw,3.6rem);font-weight:800}h2{font-size:clamp(1.5rem,3.5vw,2.1rem)}h3{font-size:1.1rem}p{margin:0 0 1em}
a{color:var(--a1)}:root[data-theme=dark] a{color:var(--a1)}
:focus-visible{outline:3px solid var(--a1);outline-offset:3px;border-radius:6px}
.skip{position:absolute;left:-999px;top:8px;background:var(--surface-solid);padding:.6rem 1rem;border-radius:8px;z-index:100}.skip:focus{left:8px}
.vh{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.wrap{width:min(1120px,100% - 2rem);margin-inline:auto}
/* background: aurora + grid (CSS only, GPU transforms) */
.bg{position:fixed;inset:0;z-index:-1;overflow:hidden;background:linear-gradient(180deg,var(--bg),var(--bg2))}
.bg::before{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:44px 44px;mask-image:radial-gradient(ellipse at 50% 20%,#000 20%,transparent 75%)}
.blob{position:absolute;width:55vmax;height:55vmax;border-radius:50%;filter:blur(70px);opacity:.38;will-change:transform;transform:translate3d(calc(var(--mx,0)*30px),calc(var(--my,0)*24px),0)}
.blob.b1{background:var(--a1);left:-20vmax;top:-25vmax;animation:drift1 26s ease-in-out infinite alternate}.blob.b2{background:var(--a2);right:-22vmax;top:5vmax;animation:drift2 32s ease-in-out infinite alternate}
:root:not([data-theme=dark]) .blob{opacity:.2}
@keyframes drift1{to{translate:8vmax 6vmax}}@keyframes drift2{to{translate:-7vmax 9vmax}}
/* header */
header.top{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px) saturate(1.4);-webkit-backdrop-filter:blur(14px) saturate(1.4);background:var(--surface);border-bottom:1px solid var(--border)}
.bar{display:flex;align-items:center;gap:1rem;min-height:60px}.brand{display:flex;align-items:center;gap:.6rem;font-weight:800;color:var(--text);text-decoration:none;font-size:1.1rem}
.brand svg{width:30px;height:30px}.nav{margin-left:auto;display:flex;align-items:center;gap:.4rem}.nav a.l{color:var(--muted);text-decoration:none;padding:.5rem .7rem;border-radius:8px;font-weight:600;font-size:.95rem}.nav a.l:hover{color:var(--text);background:var(--border)}
.icon-btn{border:1px solid var(--border);background:var(--surface-solid);color:var(--text);border-radius:999px;padding:.45rem .9rem;font:inherit;font-weight:600;font-size:.9rem;cursor:pointer;display:inline-flex;gap:.45rem;align-items:center;min-height:40px}
.icon-btn:hover{border-color:var(--a1)}
@media(max-width:560px){.nav a.l{display:none}}
/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;border:0;border-radius:14px;padding:.95rem 1.5rem;font:inherit;font-weight:700;color:var(--on-accent);background:var(--grad);cursor:pointer;min-height:52px;box-shadow:0 8px 24px -8px var(--glow);transition:transform .2s,box-shadow .2s,filter .2s}
.btn:hover{transform:translateY(-2px);box-shadow:0 14px 30px -8px var(--glow);filter:brightness(1.06)}.btn:active{transform:translateY(0)}
.btn[disabled],.btn.ghost[aria-disabled=true]{cursor:not-allowed;opacity:.9}.btn[disabled]:hover{transform:none}
.btn.ghost{background:var(--surface-solid);color:var(--text);border:1px solid var(--border);box-shadow:none}.btn.sm{min-height:42px;padding:.55rem 1rem;border-radius:12px}
.chip{display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;padding:.2rem .55rem;border-radius:999px;border:1px solid currentColor}
/* hero */
.hero{display:grid;gap:2.5rem;padding:clamp(2.5rem,7vw,5.5rem) 0 2.5rem;align-items:center}@media(min-width:960px){.hero{grid-template-columns:1.15fr .85fr}}
.eyebrow{display:inline-flex;gap:.5rem;align-items:center;font-weight:700;font-size:.85rem;color:var(--muted);background:var(--surface);border:1px solid var(--border);padding:.35rem .8rem;border-radius:999px;margin-bottom:1.2rem}
.eyebrow i{width:8px;height:8px;border-radius:50%;background:var(--good);box-shadow:0 0 10px var(--good)}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:clamp(1.05rem,2.4vw,1.25rem);color:var(--muted);max-width:56ch}
.scan-form{display:flex;flex-direction:column;gap:.75rem;margin-top:1.6rem;max-width:640px}
.field{display:flex;flex-direction:column;gap:.6rem;padding:.55rem;border-radius:20px;background:var(--surface);border:1px solid var(--border);backdrop-filter:blur(12px);box-shadow:var(--shadow);transition:box-shadow .25s,border-color .25s}
.field:focus-within{border-color:var(--a1);box-shadow:0 0 0 4px var(--glow),var(--shadow)}
.field input{flex:1;min-width:0;border:0;background:transparent;color:var(--text);font:inherit;font-size:1.05rem;padding:.8rem 1rem;min-height:52px}.field input:focus{outline:0}.field input::placeholder{color:var(--muted);opacity:.85}
@media(min-width:560px){.field{flex-direction:row}}
.opt{display:flex;gap:.55rem;align-items:center;color:var(--muted);font-size:.92rem}.opt input{width:18px;height:18px;accent-color:var(--a2)}
.note{color:var(--muted);font-size:.9rem}.err{display:none;margin-top:.8rem;padding:.85rem 1rem;border-radius:12px;background:var(--bad-bg);color:var(--bad);border:1px solid var(--bad);font-weight:600;max-width:640px}.err.show{display:block;animation:pop .3s}
/* floating illustration cards */
.stage{position:relative;height:340px;perspective:900px;display:none}@media(min-width:960px){.stage{display:block}}
.fc{position:absolute;width:250px;padding:1rem 1.1rem;border-radius:var(--r);background:var(--surface);border:1px solid var(--border);backdrop-filter:blur(14px);box-shadow:var(--shadow);animation:float 7s ease-in-out infinite;transform:translate3d(calc(var(--mx,0)*var(--d)*1px),calc(var(--my,0)*var(--d)*1px),0)}
.fc h3{font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:.6rem}.fc ul{list-style:none;margin:0;padding:0;font-size:.92rem;display:grid;gap:.35rem}
.fc li::before{content:"";display:inline-block;width:.6em;height:.6em;border-radius:50%;margin-right:.6rem;background:var(--good)}.fc li.x::before{background:var(--bad)}.fc li.w::before{background:var(--warn)}
.fc.c1{--d:-14;left:0;top:10px;animation-delay:0s}.fc.c2{--d:10;right:0;top:90px;animation-delay:-2s}.fc.c3{--d:-6;left:60px;bottom:0;animation-delay:-4s}
@keyframes float{50%{translate:0 -14px}}
.fc .tag{position:absolute;right:.9rem;top:.8rem;font-size:.65rem;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
/* sections & cards */
section{padding:clamp(2rem,5vw,3.5rem) 0}.glass{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:var(--shadow)}
.grid{display:grid;gap:1rem}.g3{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}.pad{padding:1.4rem}
.steps{counter-reset:s}.step{position:relative;padding:1.4rem 1.4rem 1.4rem 4.2rem}.step::before{counter-increment:s;content:counter(s);position:absolute;left:1.2rem;top:1.3rem;width:2.1rem;height:2.1rem;border-radius:50%;background:var(--grad);color:var(--on-accent);font-weight:800;display:grid;place-items:center}
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}.reveal.in{opacity:1;transform:none}
.sec-head{max-width:60ch;margin-bottom:1.6rem}.sec-head p{color:var(--muted)}
/* scan panel */
.scan{display:none;margin-top:1.4rem;max-width:640px;padding:1.2rem}.scan.show{display:block;animation:pop .35s}
.scan h2{font-size:1.1rem;display:flex;gap:.6rem;align-items:center}.spin{width:18px;height:18px;border-radius:50%;border:3px solid var(--border);border-top-color:var(--a1);animation:spin .8s linear infinite}
.bar-track{height:6px;border-radius:99px;background:var(--border);overflow:hidden;margin:.7rem 0}.bar-fill{height:100%;width:0;background:var(--grad);transition:width .3s}
.ticks{list-style:none;margin:0;padding:0;max-height:220px;overflow:auto;display:grid;gap:.3rem;font-size:.92rem}
.ticks li{display:flex;gap:.6rem;align-items:center;animation:slidein .3s both}.ticks .cat{margin-left:auto;color:var(--muted);font-size:.78rem;text-transform:capitalize}
.dot{width:1.1rem;height:1.1rem;border-radius:50%;display:inline-grid;place-items:center;font-size:.7rem;font-weight:800;flex:none;color:#fff}
.dot.pass{background:var(--good)}.dot.warn{background:var(--warn)}.dot.fail{background:var(--bad)}:root[data-theme=dark] .dot{color:#04121f}
@keyframes spin{to{rotate:360deg}}@keyframes pop{from{opacity:0;transform:scale(.97)}}@keyframes slidein{from{opacity:0;transform:translateX(-12px)}}
/* results */
.rhead{display:grid;gap:1.5rem;padding:clamp(1.5rem,5vw,3rem) 0 1rem;align-items:center}@media(min-width:800px){.rhead{grid-template-columns:auto 1fr}}
.ring{position:relative;width:min(220px,60vw);aspect-ratio:1;margin-inline:auto}.ring svg{width:100%;height:100%;rotate:-90deg}.ring circle{fill:none;stroke-width:10;stroke-linecap:round}
.ring .tr{stroke:var(--border)}.ring .pg{stroke:var(--c);stroke-dasharray:326.7;stroke-dashoffset:326.7;filter:drop-shadow(0 0 6px var(--c));transition:stroke-dashoffset 1.4s cubic-bezier(.2,.8,.2,1)}
.ring .num{position:absolute;inset:0;display:grid;place-content:center;text-align:center}.ring .num b{font-size:clamp(2.8rem,10vw,3.8rem);line-height:1}.ring .num span{color:var(--muted);font-size:.85rem}
.band-good{--c:var(--good)}.band-warn{--c:var(--warn)}.band-bad{--c:var(--bad)}
.badge{display:inline-flex;gap:.4rem;align-items:center;font-weight:700;font-size:.85rem;padding:.25rem .7rem;border-radius:99px;color:var(--c);background:color-mix(in srgb,var(--c) 12%,transparent);border:1px solid var(--c)}
.urlline{font-family:var(--mono);font-size:.95rem;color:var(--muted);word-break:break-all}
.actions{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:1rem}
.metrics{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1rem}.metrics span{font-size:.85rem;color:var(--muted);padding:.3rem .7rem;border:1px solid var(--border);border-radius:99px;background:var(--surface)}
.cats{display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr));align-items:start}
.cat-card{--c:var(--good);position:relative;padding:0;overflow:hidden;transition:transform .15s ease-out,box-shadow .25s,border-color .25s;transform:perspective(800px) rotateX(var(--rx,0deg)) rotateY(var(--ry,0deg))}
.cat-card:hover{border-color:var(--c);box-shadow:0 0 0 1px var(--c),0 18px 40px -16px var(--c)}
.cat-card>button{all:unset;box-sizing:border-box;display:grid;grid-template-columns:1fr auto;gap:.2rem .8rem;width:100%;padding:1.2rem;cursor:pointer}
.cat-card>button:focus-visible{outline:3px solid var(--a1);outline-offset:-3px}
.cat-card .nm{font-weight:700;font-size:1.05rem}.cat-card .sc{font-size:2rem;font-weight:800;color:var(--c);grid-row:span 2;align-self:center}.cat-card .sub{color:var(--muted);font-size:.88rem}
.mini{grid-column:1/-1;height:6px;border-radius:99px;background:var(--border);overflow:hidden;margin-top:.7rem}.mini i{display:block;height:100%;width:0;background:var(--c);transition:width 1s ease .2s}
.chev{display:inline-block;transition:rotate .25s}[aria-expanded=true] .chev{rotate:180deg}
.slide{display:grid;grid-template-rows:0fr;transition:grid-template-rows .35s ease}.slide.open{grid-template-rows:1fr}.slide>div{overflow:hidden}
.slide ul{list-style:none;margin:0;padding:0 1.2rem 1.2rem;display:grid;gap:.7rem}.slide li{display:grid;grid-template-columns:auto 1fr;gap:.6rem;font-size:.92rem}.slide li small{display:block;color:var(--muted)}
.band-label{font-weight:700}
.prio h3{display:flex;align-items:center;gap:.6rem;margin:1.4rem 0 .6rem}.prio .chip{color:var(--c)}
.p-high{--c:var(--bad)}.p-medium{--c:var(--warn)}.p-low{--c:var(--a1)}
.fix{margin-bottom:.6rem;overflow:hidden;border-left:4px solid var(--c)}.fix>button{all:unset;box-sizing:border-box;width:100%;display:flex;gap:.8rem;align-items:center;padding:1rem 1.2rem;cursor:pointer;font-weight:600}
.fix>button:focus-visible{outline:3px solid var(--a1);outline-offset:-3px}.fix .pts{margin-left:auto;color:var(--muted);font-weight:600;font-size:.85rem;white-space:nowrap}
.fix .body{padding:0 1.2rem 1.2rem;display:grid;gap:.6rem;font-size:.95rem}.fix dt{font-weight:700;font-size:.78rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}.fix dd{margin:0 0 .5rem}
.sim{display:grid;gap:1.5rem;padding:1.4rem}@media(min-width:800px){.sim{grid-template-columns:1.2fr .8fr}}
.sim label{display:flex;gap:.7rem;align-items:flex-start;padding:.6rem .7rem;border-radius:12px;cursor:pointer;border:1px solid transparent}.sim label:hover{background:var(--border)}
.sim input{width:20px;height:20px;margin-top:.15rem;accent-color:var(--a2);flex:none}.sim .gain{margin-left:auto;color:var(--good);font-weight:700;white-space:nowrap}
.sim-out{text-align:center;align-self:start;position:sticky;top:80px}.ba{display:flex;align-items:center;justify-content:center;gap:1rem;font-weight:800;font-size:2.4rem}.ba small{display:block;font-size:.75rem;color:var(--muted);font-weight:600}.ba .arrow{color:var(--muted);font-size:1.6rem}
.estimate{font-size:.85rem;color:var(--muted);border:1px dashed var(--border);border-radius:10px;padding:.6rem .8rem;margin-top:.8rem}
.cta{padding:clamp(1.4rem,4vw,2.4rem);text-align:center;border:1px solid var(--a1);background:linear-gradient(135deg,color-mix(in srgb,var(--a1) 10%,transparent),color-mix(in srgb,var(--a2) 12%,transparent)),var(--surface)}
.cta .soon{margin-left:.5rem}
form.contact{display:grid;gap:.8rem;max-width:560px;margin:1rem auto 0;text-align:left}form.contact label{font-weight:600;font-size:.9rem}
form.contact input,form.contact textarea{width:100%;font:inherit;color:var(--text);background:var(--surface-solid);border:1px solid var(--border);border-radius:12px;padding:.7rem .9rem;min-height:46px}
.skel{height:120px;border-radius:var(--r);background:linear-gradient(90deg,var(--border),transparent,var(--border));background-size:200% 100%;animation:sh 1.4s infinite}@keyframes sh{to{background-position:-200% 0}}
.empty{padding:3rem 1rem;text-align:center}
.toast{position:fixed;left:50%;bottom:1.2rem;translate:-50% 20px;opacity:0;background:var(--surface-solid);border:1px solid var(--border);padding:.6rem 1rem;border-radius:12px;box-shadow:var(--shadow);transition:.3s;z-index:90;pointer-events:none}.toast.show{opacity:1;translate:-50% 0}
footer.site{border-top:1px solid var(--border);background:var(--surface);padding:2rem 0 5.5rem;margin-top:2rem;color:var(--muted);font-size:.92rem}footer.site strong{color:var(--text)}
footer.site ul{margin:.6rem 0 0;padding-left:1.2rem}
/* chat widget */
#chat-root{position:fixed;right:1rem;bottom:1rem;z-index:80;font-size:.95rem}
.chat-fab{border:0;border-radius:999px;background:var(--grad);color:var(--on-accent);font:inherit;font-weight:700;padding:.85rem 1.2rem;min-height:52px;cursor:pointer;box-shadow:0 10px 30px -8px var(--glow);display:flex;gap:.5rem;align-items:center}
.chat-fab:hover{filter:brightness(1.07)}
.chat-panel{position:absolute;right:0;bottom:64px;width:min(380px,calc(100vw - 2rem));height:min(540px,calc(100vh - 110px));display:flex;flex-direction:column;overflow:hidden;background:var(--surface-solid);border:1px solid var(--border);border-radius:20px;box-shadow:var(--shadow);opacity:0;visibility:hidden;transform:translateY(14px) scale(.98);transform-origin:bottom right;transition:.25s}
.chat-panel.open{opacity:1;visibility:visible;transform:none}
.chat-head{padding:.8rem 1rem;background:var(--grad);color:var(--on-accent);display:flex;justify-content:space-between;align-items:center;gap:.6rem}.chat-head b{display:block}.chat-head small{opacity:.92;font-size:.75rem;line-height:1.3;display:block}
.chat-head button{all:unset;cursor:pointer;font-size:1.3rem;padding:.2rem .5rem;border-radius:8px}.chat-head button:focus-visible{outline:3px solid var(--on-accent)}
.chat-log{flex:1;overflow:auto;padding:1rem;display:flex;flex-direction:column;gap:.6rem}
.msg{max-width:88%;padding:.6rem .85rem;border-radius:14px;white-space:pre-wrap;word-wrap:break-word;animation:pop .25s}.msg.bot{background:var(--bg2);align-self:flex-start;border-bottom-left-radius:4px}.msg.me{background:var(--grad);color:var(--on-accent);align-self:flex-end;border-bottom-right-radius:4px}
.typing i{display:inline-block;width:6px;height:6px;margin:0 2px;border-radius:50%;background:var(--muted);animation:bounce 1s infinite}.typing i:nth-child(2){animation-delay:.15s}.typing i:nth-child(3){animation-delay:.3s}@keyframes bounce{40%{translate:0 -5px}}
.chips{display:flex;flex-wrap:wrap;gap:.4rem;padding:0 1rem .6rem}.chips button{font:inherit;font-size:.82rem;cursor:pointer;color:var(--text);background:transparent;border:1px solid var(--a1);border-radius:99px;padding:.35rem .75rem;min-height:34px}.chips button:hover{background:var(--glow)}
.chat-form{display:flex;gap:.5rem;padding:.7rem;border-top:1px solid var(--border)}.chat-form input{flex:1;min-width:0;font:inherit;color:var(--text);background:var(--bg);border:1px solid var(--border);border-radius:12px;padding:.6rem .8rem;min-height:44px}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}.reveal{opacity:1;transform:none}.blob,.fc{transform:none!important}}
.steps{list-style:none;padding:0;margin:0}