:root{--bg:#030303;--accent:255,221,0;--yellow:#FFDD00;--muted:#a4a0a3;--text:#f6f3f4;--soft:#b4b0b3;--line:rgba(255,255,255,.09);--font:Inter,"Segoe UI",system-ui,sans-serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;background:var(--bg);color:#fff;font-family:var(--font);-webkit-font-smoothing:antialiased;overflow-x:hidden;line-height:1.6}
h1,h2,h3,h4{font-weight:400;margin:0;color:var(--text)}
p{margin:0}
a{color:inherit;text-decoration:none}
.wrap{width:min(100%,1280px);margin-inline:auto;padding-inline:max(20px,env(safe-area-inset-left,0px))}
section{padding-block:clamp(56px,8vw,112px)}
.eyebrow{font-size:.82rem;letter-spacing:.2em;text-transform:uppercase;color:var(--yellow);margin-bottom:16px;display:block}
.h2{font-size:clamp(2rem,4.2vw,3.6rem);letter-spacing:-.025em;line-height:1.06}
.lead{font-size:clamp(1rem,1.35vw,1.2rem);color:var(--soft);max-width:34em;line-height:1.7}
.y{color:var(--yellow)}

/* nav */
.nav-in{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{font-size:1.2rem;letter-spacing:.04em}
.logo b{font-weight:500;color:var(--yellow)}
.links{display:flex;gap:32px;font-size:.92rem;color:var(--muted)}
.links a:hover{color:#fff}
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 24px;border-radius:999px;font:500 .95rem/1 var(--font);background:var(--yellow);color:#17151f;transition:transform .25s,box-shadow .25s;border:0;cursor:pointer}
.btn:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(var(--accent),.28)}
.btn svg{transition:transform .25s}.btn:hover svg{transform:translateX(4px)}
.btn.ghost{background:rgba(255,255,255,.07);color:#fff}
.btn.ghost:hover{background:rgba(var(--accent),.18);box-shadow:none}
.btn.sm{padding:11px 20px;font-size:.88rem}

/* hero */
.hero{position:relative;padding-block:clamp(48px,7vw,100px) clamp(48px,6vw,80px);overflow:hidden;isolation:isolate}
.hero::before{content:"";position:absolute;z-index:-1;right:-10%;top:-20%;width:60vw;height:60vw;max-width:820px;max-height:820px;background:radial-gradient(closest-side,rgba(var(--accent),.13),transparent 70%)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(24px,5vw,80px);align-items:center}
.brand{font-size:.9rem;letter-spacing:.14em;color:var(--yellow);display:block;margin-bottom:18px}
h1{font-size:clamp(2.2rem,4.9vw,4.4rem);line-height:1.05;letter-spacing:-.028em;text-wrap:balance}
.hero p.lead{margin-top:clamp(18px,2vw,28px);color:var(--muted)}
.cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:clamp(24px,3vw,40px)}


/* animated hero visual */
.viz{width:100%;max-width:640px;margin-inline:auto}
.viz svg{width:100%;height:auto;display:block;overflow:visible}
.v-ring{fill:none;stroke:rgba(255,221,0,.22);stroke-width:1;stroke-dasharray:3 9;transform-box:fill-box;transform-origin:center;animation:spin 40s linear infinite}
.v-ring.r2{stroke:rgba(255,255,255,.09);animation-duration:70s;animation-direction:reverse}
.v-glow{animation:breathe 4s ease-in-out infinite;transform-box:fill-box;transform-origin:center}
.v-line{fill:none;stroke:url(#ln);stroke-width:1.5;stroke-dasharray:6 8;animation:dash 1.6s linear infinite}
.v-pulse{fill:#fff;filter:drop-shadow(0 0 6px #FFDD00)}
.v-node{animation:float 5s ease-in-out infinite}
.v-node rect{fill:#0c0c0f;stroke:rgba(255,221,0,.4);stroke-width:1}
.v-node text{fill:#e9e5e7;font:400 15px Inter,system-ui,sans-serif;letter-spacing:.04em}
.v-core circle{fill:#FFDD00;filter:drop-shadow(0 0 22px rgba(255,221,0,.55));animation:breathe 3s ease-in-out infinite;transform-box:fill-box;transform-origin:center}
.v-core-t{fill:#FFDD00;font:400 13px Inter,sans-serif;letter-spacing:.3em;text-indent:.3em}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes dash{to{stroke-dashoffset:-28}}
@keyframes breathe{50%{transform:scale(1.07);opacity:.85}}
@keyframes float{50%{transform:translateY(-6px)}}
@media(prefers-reduced-motion:reduce){.v-ring,.v-glow,.v-line,.v-node,.v-core circle{animation:none}.v-pulse{display:none}}

/* stats */
.stats{border-block:1px solid var(--line);padding-block:clamp(28px,4vw,48px)}
.stats-g{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat b{display:block;font-weight:400;font-size:clamp(2rem,3.6vw,3.2rem);letter-spacing:-.02em;color:var(--yellow);line-height:1.1}
.stat span{font-size:.92rem;color:var(--muted)}

/* about */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,6vw,96px);align-items:start}
.split .lead+.lead{margin-top:18px}
.compare{margin-top:clamp(32px,4vw,56px);display:grid;grid-template-columns:1fr 1fr;gap:14px}
.cmp{border-radius:22px;padding:clamp(22px,2.6vw,36px);border:1px solid var(--line);background:#0a0a0c}
.cmp.on{background:linear-gradient(160deg,#3d3b78,#262452);border-color:transparent}
.cmp h3{font-size:1.5rem;margin-bottom:16px}
.cmp li{list-style:none;padding:9px 0 9px 28px;position:relative;color:#cfcacd;font-size:1rem}
.cmp ul{margin:0;padding:0}
.cmp li::before{content:"";position:absolute;left:0;top:17px;width:12px;height:2px;background:#6c686b}
.cmp.on li::before{background:var(--yellow);height:2px;width:14px}

/* cards */
.head{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(24px,6vw,96px);align-items:end;margin-bottom:clamp(28px,4vw,52px)}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.card{border-radius:22px;padding:clamp(22px,2.2vw,32px);min-height:380px;display:flex;flex-direction:column;background:linear-gradient(160deg,var(--c1),var(--c2));position:relative;overflow:hidden;transition:transform .3s}
.card:hover{transform:translateY(-6px)}
.card .ico{width:52px;height:52px;border-radius:14px;background:rgba(255,255,255,.16);display:grid;place-items:center}
.card .n{position:absolute;top:30px;right:26px;font-size:.85rem;letter-spacing:.14em;color:rgba(255,255,255,.75)}
.card h3{font-size:clamp(1.5rem,2vw,1.9rem);line-height:1.12;letter-spacing:-.02em;margin-top:auto}
.card p{margin-top:12px;color:rgba(255,255,255,.86);font-size:.98rem;line-height:1.6}

/* process */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}
.step{padding:28px 28px 12px 0;position:relative}
.step::before{content:"";position:absolute;top:-1px;left:0;width:48px;height:2px;background:var(--yellow)}
.step small{display:block;color:var(--yellow);letter-spacing:.14em;font-size:.85rem;margin-top:10px}
.step h3{font-size:1.5rem;margin:14px 0 10px;letter-spacing:-.01em}
.step p{color:var(--muted);font-size:.98rem;max-width:20em}

/* engagement + skills */
.models{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.model{border:1px solid var(--line);border-radius:22px;padding:clamp(22px,2.6vw,34px);background:#0a0a0c;transition:border-color .3s,background .3s}
.model:hover{border-color:rgba(var(--accent),.45);background:#0e0e10}
.model h3{font-size:1.5rem;margin:16px 0 10px}
.model p{color:var(--muted);font-size:.98rem}
.model .ico{color:var(--yellow)}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:clamp(28px,3vw,44px)}
.chip{padding:11px 18px;border-radius:999px;background:rgba(255,255,255,.06);font-size:.9rem;color:#cfcacd;transition:.25s}
.chip:hover{background:rgba(var(--accent),.16);color:var(--yellow)}

/* cta band */
.band{border-radius:28px;padding:clamp(32px,6vw,80px);background:radial-gradient(120% 140% at 100% 0,rgba(var(--accent),.18),transparent 55%),linear-gradient(160deg,#101013,#08080a);border:1px solid var(--line);display:grid;grid-template-columns:1.2fr .8fr;gap:clamp(24px,5vw,72px);align-items:center}
.form{display:grid;gap:12px}
.form input,.form select{width:100%;padding:15px 18px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.05);color:#fff;font:400 .95rem var(--font)}
.form select option{color:#000}
.form input::placeholder{color:#8c888b}
.form input:focus,.form select:focus{outline:2px solid rgba(var(--accent),.55);border-color:transparent}
.form .btn{justify-content:center}

.foot{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center}
.foot nav{all:unset}

@media(max-width:1000px){.cards,.steps{grid-template-columns:repeat(2,1fr)}.stats-g{grid-template-columns:repeat(2,1fr)}.models{grid-template-columns:1fr}.card{min-height:300px}}
@media(max-width:860px){.hero-grid,.split,.head,.compare,.band{grid-template-columns:1fr}.links{display:none}}
@media(max-width:560px){.cards,.steps{grid-template-columns:1fr}.step{padding-right:0}.cta .btn{width:100%;justify-content:center}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto}}