:root{--blue:#536CF5;--blue-d:#3A52DE;--ink:#0E121F;--paper:#fff;--text:#0E121F;--mute:#565D72;--rule:#DDE1F0;--tint:#EDEFFE;
--f:"Poppins","Segoe UI",system-ui,sans-serif;--m:"JetBrains Mono",ui-monospace,Menlo,monospace;
box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--paper:#0B0F1B;--text:#EEF1FA;--mute:#A3ACC4;--rule:#232B45;--tint:#171E33}}
:root[data-theme="dark"]{--paper:#0B0F1B;--text:#EEF1FA;--mute:#A3ACC4;--rule:#232B45;--tint:#171E33}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--mute);font:400 17px/1.65 var(--f);-webkit-font-smoothing:antialiased;overflow-x:hidden}
h1,h2,h3{margin:0;color:var(--text);font-weight:600;line-height:1.05;letter-spacing:-.035em}
a{color:inherit;text-decoration:none}
:focus-visible{outline:3px solid var(--ink);outline-offset:3px;box-shadow:0 0 0 6px #fff}
.c{max-width:1180px;margin:0 auto;padding:0 24px}
.btn{display:inline-block;font:500 16px var(--f);padding:15px 28px;border-radius:999px;border:0;cursor:pointer;background:var(--ink);color:#fff}
.btn:hover{background:#000}
.btn.w{background:#fff;color:var(--ink)}.btn.w:hover{background:var(--tint)}
/* hero */
.hero{position:relative;overflow:hidden;background:var(--blue);color:#fff}
.glyph{position:absolute;right:-3vw;bottom:-9vw;font:600 34vw/1 var(--f);letter-spacing:-.06em;color:rgba(255,255,255,.1);pointer-events:none;user-select:none;white-space:nowrap}
.top{position:relative;display:flex;justify-content:space-between;align-items:center;padding:26px 0}
.brand{display:flex;align-items:center;gap:12px;color:#fff;font-weight:600;font-size:18px;letter-spacing:-.02em}
.mk{font-weight:700;font-size:24px}.mk i{font-style:normal;font-weight:400;opacity:.7}
.brand small{font-size:10.5px;font-weight:500;letter-spacing:.1em;opacity:.75;margin-left:3px}
.nav{display:flex;gap:28px;align-items:center;font-size:15px;font-weight:500}.nav a:hover{text-decoration:underline;text-underline-offset:5px}
.hero h1{position:relative;color:#fff;font-size:clamp(52px,10.5vw,148px);letter-spacing:-.05em;line-height:.92;margin:clamp(40px,9vw,110px) 0 28px}
.sub{position:relative;max-width:30em;font-size:clamp(18px,2vw,22px);line-height:1.5;color:#E6EAFF;margin:0 0 34px}
.hero .btn{position:relative}
.strip{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:clamp(56px,9vw,110px);padding:22px 0 30px;border-top:1px solid rgba(255,255,255,.35);font-size:15px;color:#fff}
/* catalog */
section{padding:clamp(64px,9vw,112px) 0}
.head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap;margin-bottom:34px}
.head h2{font-size:clamp(34px,5.4vw,66px);max-width:12em}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px}
.chip{font:500 14px var(--f);padding:9px 18px;border-radius:999px;border:1.5px solid var(--rule);background:none;color:var(--text);cursor:pointer}
.chip:hover{border-color:var(--blue)}
.chip[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:#fff}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .chip[aria-pressed="true"]{background:var(--blue);border-color:var(--blue)}}
.cnt{font:400 13px var(--m);margin:0 0 6px}
.row{display:grid;grid-template-columns:84px 1.1fr 1.5fr 150px;gap:24px;align-items:baseline;padding:30px 16px;margin:0 -16px;border-top:1px solid var(--rule);border-radius:2px;transition:background .2s,color .2s}
.row:last-child{border-bottom:1px solid var(--rule)}
.row[hidden]{display:none}
.row .id{font:500 13px var(--m)}
.row h3{font-size:clamp(22px,2.6vw,32px)}
.row p{margin:0;font-size:16px}
.row .st{font:500 13px var(--m);text-align:right}
.row:hover{background:var(--blue);color:#E6EAFF}.row:hover h3,.row:hover .id,.row:hover .st{color:#fff}
.on{color:var(--blue)}.row:hover .on{color:#fff}
/* how */
.dark{background:var(--ink);color:#B7BDD0}
.dark h2{color:#fff}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;margin-top:48px}
.steps div{border-top:2px solid var(--blue);padding-top:20px}
.steps b{display:block;font:500 13px var(--m);color:#93A2FA;margin-bottom:10px}
.steps h3{color:#fff;font-size:26px;margin-bottom:10px}.steps p{margin:0;font-size:16px}
/* book */
.book{background:var(--blue);color:#E6EAFF}
.bk{display:grid;grid-template-columns:1.3fr .7fr;gap:40px;align-items:end;margin-bottom:40px}
#calwrap{background:var(--paper);border-radius:20px;padding:10px;min-height:560px;overflow:auto}
#cal{width:100%;min-height:540px}
.alt{margin:16px 0 0;font-size:14px}.alt a{color:#fff;text-decoration:underline;text-underline-offset:4px}
.book h2{color:#fff;font-size:clamp(36px,6vw,78px);letter-spacing:-.045em;line-height:.98}
.book ul{list-style:none;margin:0 0 26px;padding:0}.book li{padding:10px 0;border-bottom:1px solid rgba(255,255,255,.3);color:#fff;font-size:16px}
/* blog */
.pr{display:grid;grid-template-columns:130px 1fr 90px;gap:24px;align-items:baseline;width:100%;text-align:left;background:none;border:0;border-top:1px solid var(--rule);padding:26px 0;cursor:pointer;color:inherit;font:inherit}
.pr:last-child{border-bottom:1px solid var(--rule)}
.pr h3{font-size:clamp(20px,2.4vw,28px);font-weight:500}.pr span{font:400 13px var(--m)}
.pr:hover h3{color:var(--blue)}
article{max-width:38em}article h2{font-size:clamp(30px,4.4vw,52px);margin-bottom:12px}article p{margin:0 0 18px}
.meta{font:400 13px var(--m);margin-bottom:30px}
.back{background:none;border:0;color:var(--blue);font:500 15px var(--f);cursor:pointer;padding:0;margin-bottom:26px}
footer{background:var(--ink);color:#8A92AB;padding:56px 0 32px;font-size:14px}
.fg{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;margin-bottom:34px}
.fg p{margin:12px 0 0;max-width:30em}.fg a:hover{color:#fff}
.fb{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;font-size:12.5px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
@media (max-width:860px){.row{grid-template-columns:1fr;gap:6px;padding:24px 16px}.row .st{text-align:left}.steps,.bk,.strip{grid-template-columns:1fr}.pr{grid-template-columns:1fr;gap:6px}.nav a:not(.btn){display:none}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.row{transition:none}}

.row{cursor:pointer}
.dh{display:flex;gap:14px;align-items:center;flex-wrap:wrap;margin-bottom:14px;font:500 13px var(--m)}
.bdg{padding:4px 12px;border-radius:999px;background:var(--tint);color:var(--blue)}
.dg{display:grid;grid-template-columns:1fr 1.15fr;gap:48px;align-items:start;margin-top:30px}
.dg h2{font-size:clamp(36px,6vw,72px);letter-spacing:-.045em;line-height:.98}
.tag2{font-size:clamp(18px,2vw,22px);color:var(--text);margin:18px 0 0;line-height:1.45}
.dg h4{margin:28px 0 8px;color:var(--text);font-size:15px;font-weight:600}
.dg ul{margin:0;padding-left:20px}.dg li{margin-bottom:6px}.dg p{margin:0}
.note{font-size:14px;margin-top:22px;padding:12px 16px;border-left:3px solid var(--blue);background:var(--tint)}
.mf{position:relative;aspect-ratio:16/10;border-radius:18px;overflow:hidden;background:var(--ink);border:1px solid var(--rule)}
.mf .ph{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;color:#93A2FA;font:500 14px var(--m);text-align:center;padding:20px}
.mf .ph b{font:700 44px var(--f);color:#536CF5}
.mf video,.mf img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;background:var(--ink)}
.cta2{margin-top:34px}
@media (max-width:860px){.dg{grid-template-columns:1fr;gap:28px}}
.hero h1{font-size:clamp(40px,7vw,92px);line-height:.96;max-width:11em}.slim{padding-bottom:6px}.slim .top{padding:18px 0}.crumbs{font:400 13px var(--m);margin:0 0 24px}.crumbs a{color:var(--blue)}.crumbs a:hover{text-decoration:underline}a.pr,a.row{text-decoration:none}a.pr:last-child{border-bottom:1px solid var(--rule)}.dg h1{font-size:clamp(36px,6vw,72px);letter-spacing:-.045em;line-height:.98}.dg h2{font-size:15px;font-weight:600;letter-spacing:0;line-height:1.3;margin:28px 0 8px;color:var(--text)}.prose{max-width:40em}.prose h1{font-size:clamp(30px,4.6vw,56px);letter-spacing:-.04em;margin-bottom:14px}.prose h2{font-size:clamp(24px,3vw,32px);margin:38px 0 12px}.prose h3{font-size:21px;margin:28px 0 10px}.prose p,.prose li{margin:0 0 16px}.prose ul,.prose ol{padding-left:22px}.prose img{display:block;max-width:100%;height:auto;border-radius:12px;margin:8px 0 24px}.prose a{color:var(--blue);text-decoration:underline;text-underline-offset:3px}.rel{margin-top:56px;padding-top:26px;border-top:1px solid var(--rule)}.rel h2{font-size:22px;margin-bottom:10px}.rel a{display:block;padding:11px 0;color:var(--text);font-weight:500;border-bottom:1px solid var(--rule)}.rel a:hover{color:var(--blue)}.more{display:inline-block;margin-top:20px;color:var(--blue);font-weight:500}.fg ul{list-style:none;margin:0;padding:0}.fg li{margin-bottom:6px}