:root{--bg:#f8fafc;--bg2:#eef2ff;--surface:#fff;--text:#0f172a;--muted:#475569;--border:#e2e8f0;--a1:#4f46e5;--a2:#0891b2;--grad:linear-gradient(135deg,#4f46e5,#0891b2);--shadow:0 10px 30px -12px rgba(15,23,42,.18);--hero:radial-gradient(60% 60% at 80% 0%,rgba(79,70,229,.14),transparent 70%),radial-gradient(50% 50% at 0% 20%,rgba(8,145,178,.12),transparent 70%)}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#0b1020;--bg2:#10162b;--surface:#131a33;--text:#f1f5f9;--muted:#a3adc2;--border:#232c4a;--a1:#818cf8;--a2:#22d3ee;--grad:linear-gradient(135deg,#818cf8,#22d3ee);--shadow:0 10px 30px -12px rgba(0,0,0,.6);--hero:radial-gradient(60% 60% at 80% 0%,rgba(99,102,241,.25),transparent 70%),radial-gradient(50% 50% at 0% 20%,rgba(6,182,212,.16),transparent 70%)}}
:root[data-theme=dark]{--bg:#0b1020;--bg2:#10162b;--surface:#131a33;--text:#f1f5f9;--muted:#a3adc2;--border:#232c4a;--a1:#818cf8;--a2:#22d3ee;--grad:linear-gradient(135deg,#818cf8,#22d3ee);--shadow:0 10px 30px -12px rgba(0,0,0,.6);--hero:radial-gradient(60% 60% at 80% 0%,rgba(99,102,241,.25),transparent 70%),radial-gradient(50% 50% at 0% 20%,rgba(6,182,212,.16),transparent 70%)}
*{box-sizing:border-box}html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--a1)}img,svg{max-width:100%}
.container{width:min(1120px,92%);margin-inline:auto}
.skip{position:absolute;left:-999px;top:0;background:var(--a1);color:#fff;padding:.6rem 1rem;z-index:100}.skip:focus{left:0}
:focus-visible{outline:3px solid var(--a2);outline-offset:3px;border-radius:6px}
header.site{position:sticky;top:0;z-index:50;backdrop-filter:saturate(1.4) blur(12px);background:color-mix(in srgb,var(--bg) 80%,transparent);border-bottom:1px solid var(--border)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px;gap:1rem}
.logo{display:inline-flex;align-items:center;text-decoration:none}.logo svg{height:34px;width:auto}
nav ul{display:flex;gap:1.6rem;list-style:none;margin:0;padding:0;align-items:center}
nav a{color:var(--muted);text-decoration:none;font-weight:500;font-size:.95rem}nav a:hover{color:var(--text)}
.btn{display:inline-block;padding:.8rem 1.4rem;border-radius:12px;font-weight:600;text-decoration:none;border:1px solid transparent;transition:transform .15s,box-shadow .15s}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--grad);color:#fff!important;box-shadow:0 8px 24px -8px rgba(79,70,229,.6)}
.btn-ghost{border-color:var(--border);color:var(--text);background:var(--surface)}
nav .btn{padding:.5rem 1rem;color:#fff}
.menu-btn,.theme-btn{background:var(--surface);border:1px solid var(--border);color:var(--text);border-radius:10px;width:40px;height:40px;cursor:pointer;font-size:1.1rem}
.menu-btn{display:none}
.hero{background:var(--hero);padding:clamp(4rem,10vw,8rem) 0 clamp(3rem,7vw,6rem)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:3rem;align-items:center}
.eyebrow{display:inline-block;font-size:.8rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--a1);background:var(--surface);border:1px solid var(--border);padding:.35rem .8rem;border-radius:99px}
h1{font-size:clamp(2.3rem,5.4vw,4rem);line-height:1.08;margin:1rem 0;letter-spacing:-.03em}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:clamp(1.05rem,2vw,1.25rem);color:var(--muted);max-width:56ch}
.cta{display:flex;gap:.8rem;flex-wrap:wrap;margin-top:2rem}
.viz{background:var(--surface);border:1px solid var(--border);border-radius:24px;padding:1rem;box-shadow:var(--shadow)}
section{padding:clamp(3.5rem,8vw,6rem) 0}
section.alt{background:var(--bg2)}
.kicker{color:var(--a1);font-weight:600;font-size:.85rem;letter-spacing:.08em;text-transform:uppercase}
h2{font-size:clamp(1.8rem,3.6vw,2.6rem);line-height:1.15;margin:.4rem 0 1rem;letter-spacing:-.02em}
.sub{color:var(--muted);max-width:62ch;margin:0 0 2.5rem}
.grid{display:grid;gap:1.25rem}.g3{grid-template-columns:repeat(3,1fr)}.g2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:1.6rem;transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.card h3{margin:.9rem 0 .4rem;font-size:1.15rem}.card p{margin:0;color:var(--muted);font-size:.97rem}
.icon{width:46px;height:46px;border-radius:12px;background:var(--grad);display:grid;place-items:center;color:#fff}
.icon svg{width:24px;height:24px}
.steps{counter-reset:s;list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,1fr);gap:1.25rem}
.steps li{counter-increment:s;background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:1.6rem;position:relative}
.steps li::before{content:counter(s);display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:var(--grad);color:#fff;font-weight:700;margin-bottom:.8rem}
.steps h3{margin:0 0 .4rem}.steps p{margin:0;color:var(--muted);font-size:.96rem}
.about{display:grid;grid-template-columns:1.2fr .8fr;gap:3rem;align-items:center}
.pin{background:var(--surface);border:1px solid var(--border);border-radius:24px;padding:2rem;text-align:center;box-shadow:var(--shadow)}
.contact{text-align:center}
.contact-box{background:var(--grad);color:#fff;border-radius:28px;padding:clamp(2.5rem,6vw,4.5rem) 1.5rem}
.contact-box h2{color:#fff}.contact-box p{opacity:.92;max-width:52ch;margin:0 auto 1.8rem}
.contact-box .btn{background:#fff;color:#1e1b4b!important;font-size:1.1rem}
footer{border-top:1px solid var(--border);padding:2.5rem 0;color:var(--muted);font-size:.92rem}
.foot{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;align-items:center}
.foot a{color:var(--muted)}
.prose{max-width:760px;padding:4rem 0}.prose h1{font-size:2.3rem}.prose h2{font-size:1.4rem;margin-top:2rem}.prose p,.prose li{color:var(--muted)}
@media (max-width:900px){.hero-grid,.about{grid-template-columns:1fr}.g3{grid-template-columns:1fr 1fr}.steps{grid-template-columns:1fr 1fr}.viz{max-width:520px}}
@media (max-width:680px){.g3,.g2,.steps{grid-template-columns:1fr}.menu-btn{display:block}
nav ul{display:none;position:absolute;top:68px;left:0;right:0;flex-direction:column;background:var(--bg);border-bottom:1px solid var(--border);padding:1.2rem;gap:1rem}
nav ul.open{display:flex}}