:root{--paper:#efdce7;--ink:#1b141a;--rice:#fbf1f6;--nori:#281d26;--green:#a9ac2f;--gd:#686b13;--gl:#e0e386;--leaf:#eaddd2;--plum:#9832c8;--mut:#5a4754;--mutd:#c2a8b7;
--disp:"Zen Maru Gothic","Hiragino Maru Gothic ProN",system-ui,sans-serif;--body:"Source Sans 3",system-ui,-apple-system,"Segoe UI",sans-serif;--mono:"PT Mono",ui-monospace,Menlo,Consolas,monospace;
--baran:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='52' height='16' viewBox='0 0 52 16'%3E%3Cpath d='M0 16L3 6l3 10 4-13 4 13 3-8 3 8L25 0l5 16 3-9 3 9 4-12 4 12 2-7 2 7 2-10v10z' fill='%232fac51'/%3E%3C/svg%3E")}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:90px}
body{margin:0;font:400 18px/1.62 var(--body);color:var(--ink);background:var(--paper) radial-gradient(#e2c8d6 1.2px,transparent 1.3px) 0 0/22px 22px;overflow-x:hidden}
img,svg{max-width:100%}
a{color:var(--gd);text-decoration-thickness:2px;text-underline-offset:3px}
a:hover{color:var(--ink)}
:focus-visible{outline:3px solid var(--plum);outline-offset:2px;border-radius:6px}
.skip{position:absolute;left:-999px;top:8px;z-index:50;background:var(--ink);color:var(--rice);padding:12px 16px;border-radius:10px}
.skip:focus{left:8px}
h1,h2,h3,.tt{font-family:var(--disp);font-weight:900;line-height:1.14;margin:0;letter-spacing:-.01em;overflow-wrap:break-word}
h1{font-size:clamp(31px,6.4vw,47px)}
p{margin:0 0 1em}
.col,.ft,.hd{max-width:752px;margin:0 auto;padding:0 16px}
.col{padding-top:26px;padding-bottom:34px}
.col>h1{margin-top:6px}
.lead{font-size:20px;line-height:1.5;color:#3a2c36;margin:16px 0 0}
.col>.lead{margin-bottom:26px}
.meta{font:400 14px/1.4 var(--mono);color:var(--mut);margin:-10px 0 24px}

/* lid header */
.hd{position:sticky;top:0;z-index:20;padding-top:10px}
.lid{display:flex;flex-wrap:wrap;gap:5px;padding:6px;background:var(--ink);border-radius:21px;box-shadow:0 6px 0 -2px rgba(27,20,26,.16)}
.logo{display:inline-flex;align-items:center;gap:9px;min-height:46px;padding:0 14px 0 9px;background:var(--rice);border-radius:15px;color:var(--ink);text-decoration:none;font:900 18px/1 var(--disp);letter-spacing:-.01em}
.logo .mark{flex:none;display:block}
.nav{display:flex;align-items:center;gap:2px;flex:1;order:2;min-width:0;justify-content:center;background:var(--nori);border-radius:15px;padding:0 4px}
.nav a{display:inline-flex;align-items:center;min-height:38px;padding:0 10px;border-radius:11px;color:var(--rice);text-decoration:none;font-weight:600;font-size:15.5px;white-space:nowrap}
.nav a:hover{background:#3d2d39;color:#ffffff}
.nav a[aria-current]{background:var(--leaf);color:var(--ink)}
.hd .cta{order:3;min-height:46px;border-radius:15px;border-color:var(--green);padding:0 16px;font-size:16px}
.burger{display:none;order:4;width:46px;height:46px;border:0;border-radius:15px;background:var(--nori);color:var(--rice);cursor:pointer;align-items:center;justify-content:center;padding:0}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:50px;padding:0 22px;background:var(--green);color:var(--ink);border:2px solid var(--ink);border-radius:14px;font:700 17px/1.1 var(--body);text-decoration:none;cursor:pointer;text-align:center;transition:transform .12s,background .12s}
.btn:hover{background:#bec33f;color:var(--ink);transform:translateY(-1px)}
.btn:active{transform:translateY(1px)}
.btn[disabled]{opacity:.6;cursor:wait}
.btn.sm{min-height:44px;padding:0 16px;font-size:15.5px}
.btn.ghost{background:transparent;color:var(--ink)}
.btn.ghost:hover{background:var(--leaf)}
.green .btn{background:var(--ink);color:var(--rice);border-color:var(--ink)}
.green .btn:hover{background:#3a2a37;color:#ffffff}
.lnk{display:inline-flex;align-items:center;min-height:44px;color:var(--ink);font-weight:700}

/* lacquer box + compartments */
.bx{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:5px;padding:7px;background:var(--ink);border-radius:23px;margin:0 0 30px;box-shadow:0 7px 0 -2px rgba(27,20,26,.14)}
.cp{position:relative;grid-column:span 6;min-width:0;padding:20px 20px 18px;border-radius:16px;background:var(--rice);overflow:hidden;font-size:16.5px;line-height:1.5}
.cp>:last-child{margin-bottom:0}
.s1{grid-column:span 1}.s2{grid-column:span 2}.s3{grid-column:span 3}.s4{grid-column:span 4}.s5{grid-column:span 5}
.nori{background:var(--nori);color:#f1dfea}
.nori a{color:var(--gl)}
.green{background:var(--green)}
.leaf{background:var(--leaf)}
.tt{font-size:20px;margin-bottom:8px}
.tt.xl{font-size:27px;margin-bottom:10px}
.mid{display:flex;align-items:center;justify-content:center}
.ume::after{content:"";position:absolute;top:13px;right:13px;width:15px;height:15px;border-radius:50%;background:radial-gradient(circle at 35% 32%,#cc7ae7 0 16%,var(--plum) 20%)}
.ume .tt{padding-right:22px}
.grass{padding-bottom:36px}
.grass::after,.baran,.sh::before,.prose h2::before{content:"";background:var(--baran) repeat-x left bottom/52px 16px}
.grass::after{position:absolute;left:0;right:0;bottom:0;height:16px}
.baran{height:16px;margin:0 22px -1px}

/* section heads on the letter */
.sh,.prose h2{font-size:clamp(25px,4.6vw,31px);margin:46px 0 18px}
.sh::before,.prose h2::before{display:block;width:104px;height:16px;margin-bottom:12px;border-bottom:3px solid var(--ink)}
.bx+.sh{margin-top:40px}

/* hero */
.herot{padding:26px 26px 44px}
.eyebrow{font:400 13.5px/1.4 var(--mono);color:var(--gd);text-transform:uppercase;letter-spacing:.06em;margin:0 0 12px}
.herot .lead{margin-top:14px}
.heroc{display:flex;flex-wrap:wrap;align-items:center;gap:8px 20px;padding:18px 20px}
.art{padding:0;min-height:96px}
.grains{position:absolute;inset:0;width:100%;height:100%;display:block}
.bul{padding-left:46px;font-weight:600;font-size:16px}
.bul::before{content:"";position:absolute;left:16px;top:22px;width:20px;height:14px;background:var(--baran) no-repeat left bottom/52px 16px}
.codecp{padding:0}

/* facts */
.facts .f,.f{display:flex;flex-direction:column;gap:4px;padding:16px 18px}
.fv{font:900 28px/1.05 var(--disp);letter-spacing:-.02em}
.fl{font-size:14.5px;line-height:1.3;color:var(--mut)}
.nori .fl{color:var(--mutd)}
.green .fl,.leaf .fl{color:#2b1f28}
.facts .f{grid-column:span 2}
.facts .big{grid-column:span 3}
.facts .big .fv{font-size:42px;color:var(--gd)}

/* steps */
.steps{counter-reset:st}
.num{counter-increment:st;display:flex;align-items:center;justify-content:center;padding:0}
.num::before{content:counter(st);font:900 40px/1 var(--disp);color:var(--gl)}

/* code */
.codebox{min-width:0}
.codetabs{display:flex;gap:4px;padding:8px 8px 0}
.codetabs button{min-height:44px;padding:0 16px;border:0;border-radius:11px 11px 0 0;background:transparent;color:var(--mutd);font:400 14.5px/1 var(--mono);cursor:pointer}
.codetabs button:hover{color:#ffffff}
.codetabs button[aria-selected="true"]{background:var(--ink);color:var(--gl)}
pre.code{position:relative;margin:0;padding:20px 18px;background:var(--ink);color:#efdce7;font:400 14px/1.6 var(--mono);overflow-x:auto;max-width:100%;-webkit-overflow-scrolling:touch;tab-size:2}
.codebox pre.code{margin:0 8px 8px;border-radius:0 11px 11px 11px;padding-top:26px}
pre.code code{font:inherit;background:none;padding:0;color:inherit;white-space:pre}
.code .k{color:var(--gl)}.code .s{color:#f183c2}.code .c{color:#a98e9f}
.copy{position:absolute;top:8px;right:8px;min-height:32px;padding:0 12px;border:1.5px solid #6a5263;border-radius:9px;background:var(--nori);color:#f1dfea;font:400 12.5px/1 var(--mono);cursor:pointer}
.copy::after{content:"";position:absolute;inset:-7px}
.copy:hover{border-color:var(--gl);color:var(--gl)}

/* prose letter */
.prose{margin:38px 0 34px}
.prose>:first-child{margin-top:0}
.prose h3{font-size:21px;margin:30px 0 10px}
.prose ul,.prose ol{padding-left:24px;margin:0 0 1.1em}
.prose li{margin-bottom:.4em}
.prose ul li::marker{color:var(--green)}
.prose ol li::marker{font-family:var(--mono);color:var(--gd)}
.prose pre.code{margin:20px 0 24px;border:7px solid var(--ink);border-radius:23px;padding:22px 16px 16px;outline:0;box-shadow:0 7px 0 -2px rgba(27,20,26,.14)}
.prose pre.code:focus-visible{border-color:var(--plum)}
:not(pre)>code{font:400 .86em var(--mono);background:var(--leaf);padding:2px 6px;border-radius:6px;overflow-wrap:anywhere}
.nori :not(pre)>code{background:#3d2d39;color:var(--gl)}
.prose table{display:block;overflow-x:auto;max-width:100%;border-collapse:separate;border-spacing:5px;background:var(--ink);border-radius:20px;padding:2px;margin:20px 0 26px;font-size:16px;line-height:1.4}
.prose th,.prose td{padding:11px 14px;text-align:left;vertical-align:top;background:var(--rice);border-radius:10px;min-width:120px}
.prose th{background:var(--nori);color:#f1dfea;font-weight:700}
.prose tr td:first-child{background:var(--leaf);font-weight:600}
.prose blockquote{margin:20px 0;padding:14px 18px;background:var(--leaf);border-radius:14px;border-left:6px solid var(--green)}

/* crumbs */
.crumbs ol{display:flex;flex-wrap:wrap;gap:0 4px;list-style:none;margin:0 0 12px;padding:0;font:400 13.5px/1.4 var(--mono);color:var(--mut)}
.crumbs li{display:inline-flex;align-items:center;min-height:32px}
.crumbs li+li::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--plum);margin:0 8px 0 4px}
.crumbs a{color:var(--gd);display:inline-flex;align-items:center;min-height:44px}

/* toc + takeaways */
.tochd{display:flex;align-items:flex-start}
.toc{list-style:none;margin:0;padding:0;counter-reset:tc;columns:2;column-gap:28px}
.toc li{break-inside:avoid}
.toc li{counter-increment:tc;border-bottom:1.5px dashed #cfb3c3}
.toc li:last-child{border:0}
.toc a{display:flex;gap:12px;align-items:center;min-height:44px;padding:6px 0;color:var(--ink);text-decoration:none;font-weight:600;line-height:1.3}
.toc a::before{content:counter(tc,decimal-leading-zero);font:400 13px var(--mono);color:var(--gd);flex:none}
.toc a:hover{color:var(--gd);text-decoration:underline}
.tkhd{padding:14px 20px}
.tkhd .tt{margin:0}
.tkbx{counter-reset:tk}
.tk{counter-increment:tk;padding-top:44px;font-weight:600}
.tk::before{content:counter(tk,decimal-leading-zero);position:absolute;top:16px;left:20px;font:400 13px/1 var(--mono);color:var(--gd);border:1.5px solid currentColor;border-radius:20px;padding:4px 8px}

/* faq */
.qa{padding:0}
.qa summary{display:flex;align-items:center;gap:14px;min-height:56px;padding:12px 18px;cursor:pointer;list-style:none;font:700 18px/1.3 var(--disp)}
.qa summary::-webkit-details-marker{display:none}
.qa summary::before{content:"";flex:none;width:22px;height:22px;border-radius:50%;background:linear-gradient(var(--ink),var(--ink)) center/10px 2.5px no-repeat,linear-gradient(var(--ink),var(--ink)) center/2.5px 10px no-repeat,var(--leaf);border:2px solid var(--ink);transition:transform .15s}
.qa[open] summary::before{background:linear-gradient(var(--rice),var(--rice)) center/10px 2.5px no-repeat,var(--plum);transform:rotate(180deg)}
.qa p{padding:0 18px 18px 54px;margin:0}

/* end cta */
.end .mid{padding:22px 14px}
.end .btn{width:100%;max-width:240px}

/* forms */
.formcp{padding:22px}
.form>:first-child{margin-top:0}
.tabs2{display:flex;gap:4px;padding:4px;background:var(--ink);border-radius:14px;margin:0 0 16px}
.tabs2 button{flex:1;min-height:44px;border:0;border-radius:10px;background:transparent;color:#f1dfea;font:700 16px/1.1 var(--body);cursor:pointer}
.tabs2 button[aria-selected="true"]{background:var(--green);color:var(--ink)}
.msg{display:none}
.msg.err{display:block;margin:0 0 14px;padding:11px 14px;border-radius:11px;background:#f4dbf8;color:#56147c;border:2px solid var(--plum);font-weight:600;font-size:16px}
.row{margin:0 0 14px}
.row label,.calc label{display:block;font-weight:700;font-size:15.5px;margin-bottom:6px}
input,select,textarea{width:100%;min-height:48px;padding:10px 13px;border:2px solid var(--ink);border-radius:12px;background:#ffffff;color:var(--ink);font:400 17px/1.3 var(--body)}
textarea{min-height:150px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:3px solid var(--green);outline-offset:1px}
.note{font-size:14.5px;line-height:1.45;color:var(--mut);margin:8px 0 0}
.form .btn.ghost[data-gauth]{width:100%;background:#ffffff}
.form .btn.ghost[data-gauth]:hover{background:var(--leaf)}
.form .btn.ghost[data-gauth]+.note{margin:8px 0 16px;padding-bottom:16px;border-bottom:1.5px dashed #cfb3c3}
form .btn[type=submit],form>button{width:100%;margin-top:4px}
.keyout{display:none}
.keyout.on{display:block}
.keyout h3{font-size:22px;margin-bottom:12px}
.keybox{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding:12px;background:var(--nori);border-radius:13px;margin-bottom:6px}
.keybox [data-key]{flex:1 1 200px;min-width:0;font:400 14.5px/1.5 var(--mono);color:var(--gl);word-break:break-all}
.keyout p{margin:12px 0}
.acts{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.mut{color:var(--mut)}
[data-support] button{display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:0 22px;background:var(--green);color:var(--ink);border:2px solid var(--ink);border-radius:14px;font:700 17px/1.1 var(--body);cursor:pointer}
[data-support] output,[data-support] [data-out]{display:block;margin-top:12px;font-weight:600;min-height:1.4em}
.keybx .formcp{grid-row:span 3}
.keybx{grid-template-rows:auto 1fr auto}

/* calculator */
.calc{grid-column:1/-1;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:5px}
.calc>div{background:var(--rice);border-radius:16px;padding:18px;min-width:0;display:flex;flex-direction:column;justify-content:space-between}
.calc>div:last-child{background:var(--green)}
.calc output{display:block;font:900 40px/1.1 var(--disp);letter-spacing:-.02em;overflow-wrap:anywhere}

/* footer */
.ft{padding-bottom:28px;margin-top:10px}
.ft .logo{padding:0;min-height:40px;margin-bottom:8px}
.ft .cp p{font-size:15px;color:var(--mut);margin:0}
.fl-links{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:0 16px}
.fl-links a{display:inline-flex;align-items:center;min-height:44px;color:#f1dfea;text-decoration:none;font-weight:600;font-size:15.5px}
.fl-links a:hover{color:var(--gl);text-decoration:underline}
.ft .legal{color:var(--mutd);font-size:14px}
.ftbx .cp:last-child{padding:13px 20px}

/* 404 */
.pg-404{padding-top:50px}
.nf .art{min-height:200px}

@media (max-width:760px){
.burger{display:inline-flex}
.logo{margin-right:auto}
.hd .cta{order:2;padding:0 13px;font-size:15.5px}
.nav{display:none;order:5;flex:0 0 100%;flex-direction:column;align-items:stretch;padding:5px;gap:2px}
.nav.open{display:flex}
.nav a{min-height:46px;padding:0 14px;font-size:17px}
}
@media (max-width:620px){
body{font-size:17px}
.s2,.s3,.s4{grid-column:span 6}
.facts .f{grid-column:span 3}
.facts .f4{grid-column:span 6}
.facts .big .fv{font-size:34px}
.art{min-height:110px}
.herot{padding:22px 18px 42px}
.lead{font-size:18.5px}
.calc{grid-template-columns:1fr}
.keybx .formcp{grid-row:auto}
.formcp{padding:18px 16px}
.num::before{font-size:28px}
.steps .s5{padding:16px}
.qa p{padding-left:18px}
.qa summary{font-size:17px}
.end .btn{max-width:none}
.fl-links{grid-template-columns:1fr}
.toc{columns:1}
}
@media (max-width:400px){
.logo{font-size:16px;padding:0 10px 0 7px;gap:7px}
.logo .mark{width:26px;height:26px}
.hd .cta{padding:0 10px;font-size:14.5px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
.ft .cp .legal{color:var(--mutd)}
.nori .lead{color:#e9d4e0}
.col>h1+.bx{margin-top:24px}