@font-face{font-family:'Montserrat';font-style:normal;font-weight:400 800;font-display:swap;src:url(fonts/montserrat-latin.woff2) format('woff2')}
:root{--cy:#00A7E7;--cy-d:#0086BA;--cy-l:#E3F5FC;--navy:#0B2540;--ink:#1D3448;--muted:#5B7083;--bg:#F6FAFD;--line:#DCE7EF;--ok:#1B9E77;--ok-l:#E2F5EE;--no:#D1495B;--no-l:#FBE7EA;--sh:0 14px 40px -18px rgba(11,37,64,.25)}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:'Montserrat',system-ui,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;font-size:16.5px;-webkit-font-smoothing:antialiased}
.wrap{max-width:1160px;margin:0 auto;padding:0 22px}
h1,h2,h3{color:var(--navy);line-height:1.15;margin:0}
h2{font-size:clamp(1.6rem,3vw,2.3rem);font-weight:800;letter-spacing:-.015em}
h3{font-size:1.05rem;font-weight:700}
p{margin:0 0 .9em}
code,.mono{font-family:'Montserrat',sans-serif;font-weight:700;font-size:.86em;background:var(--cy-l);color:var(--cy-d);padding:2px 7px;border-radius:6px;white-space:nowrap}
.kicker{display:flex;align-items:center;gap:12px;margin-bottom:12px;font-size:.78rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--cy-d)}
.kicker b{width:32px;height:32px;border-radius:50%;background:var(--cy);color:#fff;display:grid;place-items:center;font-size:.9rem;letter-spacing:0}
.lead{color:var(--muted);font-size:1.06rem;max-width:780px;margin-top:12px}

/* top */
.top{position:sticky;top:0;z-index:20;background:rgba(246,250,253,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;height:60px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--navy);font-size:1.02rem}
.brand i{width:28px;height:28px;border-radius:9px;background:linear-gradient(135deg,var(--cy),#5CD0FF);display:grid;place-items:center;color:#fff;font-style:normal;font-size:.9rem}
.nav{display:flex;gap:22px}
.nav a{color:var(--muted);text-decoration:none;font-size:.85rem;font-weight:600}
.nav a:hover{color:var(--navy)}
@media(max-width:900px){.nav{display:none}}

/* hero */
.hero{padding:64px 0 54px;background:radial-gradient(900px 460px at 85% -10%,#D3F0FC 0,transparent 70%),radial-gradient(700px 400px at -10% 20%,#EAF6FB 0,transparent 70%)}
.hero .wrap{display:grid;grid-template-columns:1.25fr .75fr;gap:36px;align-items:center}
.hero h1{font-size:clamp(2.1rem,4.4vw,3.3rem);font-weight:800;letter-spacing:-.025em}
.hero h1 em{font-style:normal;color:var(--cy)}
.hero .lead{font-size:1.12rem}
.hero svg{width:100%;height:auto;max-width:400px;margin:0 auto;display:block}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:28px}
.stat{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px 16px 14px;box-shadow:var(--sh)}
.stat b{display:block;font-size:2rem;font-weight:800;color:var(--cy);line-height:1}
.stat span{display:block;font-size:.8rem;color:var(--muted);margin-top:8px;line-height:1.35;font-weight:600}
@media(max-width:900px){.hero .wrap{grid-template-columns:1fr}.stats{grid-template-columns:1fr 1fr}}

section{padding:72px 0}
section.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stage{background:#fff;border:1px solid var(--line);border-radius:26px;padding:22px;box-shadow:var(--sh);margin-top:30px;position:relative}
.alt .stage{background:var(--bg)}
.stage svg{display:block;width:100%;height:auto}
.scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.swipe{display:none;text-align:center;color:var(--muted);font-size:.8rem;margin-top:6px}
@media(max-width:780px){.scroll svg{min-width:760px}.swipe{display:block}}
.ctrl{position:absolute;top:14px;right:14px;font:inherit;font-size:.78rem;font-weight:700;border:1px solid var(--line);background:#fff;color:var(--navy);border-radius:999px;padding:6px 14px;cursor:pointer;z-index:2}
.legend{display:flex;flex-wrap:wrap;gap:18px;margin-top:12px;font-size:.82rem;color:var(--muted)}
.legend span{display:flex;align-items:center;gap:8px}
.legend i{width:14px;height:14px;border-radius:4px;display:inline-block}

/* step chips — synced with 10s flow loop */
.chips{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:16px}
.chip{display:flex;gap:10px;padding:12px 14px;border-radius:14px;background:var(--bg);border:2px solid transparent;font-size:.84rem;color:var(--muted);line-height:1.35;animation:10s linear infinite}
.chip b{flex:none;width:26px;height:26px;border-radius:50%;background:var(--cy);color:#fff;display:grid;place-items:center;font-size:.8rem}
.chip strong{display:block;color:var(--navy);font-size:.88rem}
.chip:nth-child(1){animation-name:k1}.chip:nth-child(2){animation-name:k2}.chip:nth-child(3){animation-name:k3}.chip:nth-child(4){animation-name:k4}.chip:nth-child(5){animation-name:k5}
@keyframes k1{0%,9.9%{background:var(--cy-l);border-color:var(--cy)}10%,100%{background:var(--bg);border-color:transparent}}
@keyframes k2{0%,9.9%{background:var(--bg);border-color:transparent}10%,33.9%{background:var(--cy-l);border-color:var(--cy)}34%,100%{background:var(--bg);border-color:transparent}}
@keyframes k3{0%,33.9%{background:var(--bg);border-color:transparent}34%,47.9%{background:var(--cy-l);border-color:var(--cy)}48%,100%{background:var(--bg);border-color:transparent}}
@keyframes k4{0%,47.9%{background:var(--bg);border-color:transparent}48%,59.9%{background:var(--ok-l);border-color:var(--ok)}60%,100%{background:var(--bg);border-color:transparent}}
@keyframes k5{0%,59.9%{background:var(--bg);border-color:transparent}60%,99%{background:var(--ok-l);border-color:var(--ok)}100%{background:var(--bg);border-color:transparent}}
.paused .chip{animation-play-state:paused}
@media(max-width:900px){.chips{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.chips{grid-template-columns:1fr}}

/* one tool */
.toolgrid{display:grid;grid-template-columns:330px 1fr;gap:22px;margin-top:30px;align-items:start}
@media(max-width:900px){.toolgrid{grid-template-columns:1fr}}
.toolbox{background:var(--navy);color:#fff;border-radius:24px;padding:24px;box-shadow:var(--sh)}
.toolbox h3{color:#fff;font-size:1rem;margin-bottom:4px}
.toolbox .hint{font-size:.8rem;color:#A9C3D6;margin:0 0 16px}
.tool{display:flex;align-items:center;gap:12px;padding:11px 12px;border-radius:12px;margin-top:8px;font-size:.88rem;font-weight:600}
.tool i{flex:none;width:26px;height:26px;border-radius:8px;display:grid;place-items:center;font-style:normal;font-weight:800;font-size:.85rem}
.tool.on{background:rgba(27,158,119,.18);border:1px solid rgba(92,214,170,.55)}
.tool.on i{background:var(--ok);color:#fff}
.tool.on small{display:block;font-weight:500;color:#9FE3C9;font-size:.76rem}
.tool.off{color:#7F97AB;background:rgba(255,255,255,.04);text-decoration:line-through;text-decoration-color:rgba(209,73,91,.8)}
.tool.off i{background:rgba(209,73,91,.18);color:#FF8A9A}
.callout{margin-top:22px;display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.callout div{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px 18px;font-size:.88rem;color:var(--muted)}
.alt .callout div{background:var(--bg)}
.callout b{display:block;color:var(--navy);font-size:.95rem;margin-bottom:4px}
@media(max-width:900px){.callout{grid-template-columns:1fr}}

/* layers */
.layers{display:grid;grid-template-columns:.9fr 1.1fr;gap:30px;align-items:center;margin-top:30px}
@media(max-width:900px){.layers{grid-template-columns:1fr}}
.layers svg{width:100%;height:auto;max-width:520px;margin:0 auto;display:block}
.lrow{display:grid;grid-template-columns:44px 1fr;gap:16px;padding:16px 0;border-top:1px solid var(--line)}
.lrow:first-child{border-top:0}
.lrow .n{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;color:#fff;font-weight:800}
.lrow p{margin:4px 0 0;color:var(--muted);font-size:.92rem}

/* guardrails */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:30px}
@media(max-width:900px){.grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.grid{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:20px 20px 18px;box-shadow:var(--sh);display:flex;flex-direction:column;gap:10px}
.alt .card{background:var(--bg)}
.card .hd{display:flex;align-items:center;gap:12px}
.card .hd svg{flex:none;width:42px;height:42px;padding:9px;border-radius:12px;background:var(--cy-l);color:var(--cy-d)}
.card p{margin:0;font-size:.9rem;color:var(--muted)}
.card .tg{margin-top:auto;align-self:flex-start;font-size:.72rem;font-weight:700;letter-spacing:.04em;color:var(--ok);background:var(--ok-l);border-radius:999px;padding:3px 10px}

/* limits */
.limits{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:26px}
@media(max-width:800px){.limits{grid-template-columns:1fr}}
.limit{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px}
.limit .x{flex:none;width:34px;height:34px;border-radius:10px;background:#FFF3E0;color:#C77700;display:grid;place-items:center;font-weight:800}
.limit p{margin:0;font-size:.9rem;color:var(--muted)}
.limit b{display:block;color:var(--navy);margin-bottom:2px}

footer{padding:34px 0 50px;color:var(--muted);font-size:.84rem;text-align:center}
use.i{fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
svg text{font-family:'Montserrat',sans-serif}
.seq-m{opacity:0;animation:seq 14s linear infinite}
@keyframes seq{0%{opacity:0;transform:translateY(6px)}3%{opacity:1;transform:none}92%{opacity:1}97%,100%{opacity:0}}
.ring{animation:ring 4s ease-in-out infinite;transform-origin:280px 280px}
@keyframes ring{0%,100%{opacity:.0}50%{opacity:.55}}
@media(prefers-reduced-motion:reduce){.seq-m{animation:none;opacity:1}.ring{animation:none}.chip{animation:none}}

/* component table */
.ctab{width:100%;border-collapse:separate;border-spacing:0;margin-top:22px;font-size:.88rem;background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden}
.ctab th{text-align:left;font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);background:var(--bg);padding:12px 16px;font-weight:800}
.ctab td{padding:12px 16px;border-top:1px solid var(--line);vertical-align:top}
.ctab td:first-child{font-weight:700;color:var(--navy);white-space:nowrap}
.pill{display:inline-block;font-size:.74rem;font-weight:700;border-radius:999px;padding:3px 10px;white-space:nowrap}
.p-net{background:#FFF1E0;color:#B36200}.p-int{background:var(--ok-l);color:var(--ok)}.p-loc{background:var(--cy-l);color:var(--cy-d)}.p-none{background:#EEF1F4;color:#4A5D6E}
@media(max-width:700px){.ctab{display:block;overflow-x:auto}}