:root{
  --paper:#fffdf7; --line:#cfe0f5; --ink:#1d3fb8; --margin:#e5484d;
  --hl:#ffd84d; --mint:#c9eedc; --text:#2a2b3a; --muted:#5b5e72;
  --hand:'Playpen Sans','Comic Sans MS',cursive; --sans:'Figtree',system-ui,sans-serif;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){--paper:#171a2b;--line:#27304f;--ink:#9db7ff;--margin:#ff7a7f;--hl:#ffd84d;--mint:#1f4a3d;--text:#eceef8;--muted:#a9aec7}
}
*{box-sizing:border-box;margin:0}
html{scroll-behavior:smooth}
body{overflow-x:clip;font:400 1.0625rem/1.65 var(--sans);color:var(--text);background:var(--paper);
  background-image:repeating-linear-gradient(transparent 0 35px,color-mix(in srgb,var(--line) 45%,transparent) 35px 36px);
  padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
a{color:inherit}
:focus-visible{outline:3px solid var(--ink);outline-offset:3px;border-radius:4px}
.wrap{max-width:1040px;margin:0 auto;padding:0 clamp(1.25rem,5vw,2rem) 0 clamp(2.75rem,8vw,4.5rem);position:relative}
body::before{content:"";position:fixed;top:0;bottom:0;left:calc(max(0px,(100% - 1040px)/2) + clamp(1.9rem,6vw,3.4rem));width:2px;background:var(--margin);opacity:.5;z-index:-1;pointer-events:none}
h1,h2,h3{font-family:var(--hand);line-height:1.2;color:var(--ink)}
h1{font-size:clamp(2.3rem,7vw,4.2rem);font-weight:800}
h2{font-size:clamp(1.7rem,4.5vw,2.5rem);font-weight:800;margin-bottom:.6rem}
h3{font-size:1.3rem;font-weight:600;margin-bottom:.3rem}
section{padding:4.5rem 0}
.lead{font-size:1.2rem;max-width:34rem;color:var(--muted)}
header{padding:1.1rem 0}
header .wrap{display:flex;align-items:center;justify-content:space-between;gap:1rem}
.logo{font:800 1.7rem var(--hand);color:var(--ink);text-decoration:none}
.logo small{display:block;font:500 .78rem var(--sans);color:var(--muted);margin-top:-.25rem}
nav{display:flex;gap:1.4rem;font-weight:500}
nav a{text-decoration:none;padding:.3rem 0}
nav a:hover{text-decoration:underline;text-decoration-color:var(--hl);text-decoration-thickness:4px}
@media(max-width:640px){nav a:not(.btn){display:none}}
.btn{display:inline-block;font:700 1rem var(--sans);background:var(--ink);color:#fff;border:0;border-radius:999px;padding:.85rem 1.6rem;text-decoration:none;cursor:pointer;transition:transform .15s}
.btn:hover{transform:translateY(-2px)}
.btn.alt{background:var(--hl);color:#2a2b3a}
:root[data-theme="dark"] .btn{color:#10142a}
@media(prefers-color-scheme:dark){:root:not([data-theme="light"]) .btn{color:#10142a}}
.hero{padding-top:3.5rem;padding-bottom:4.5rem}
.hero h1 span{position:relative;display:inline-block}
.hero svg{position:absolute;left:0;bottom:-.35em;width:100%;height:.5em;overflow:visible}
.hero path{fill:none;stroke:var(--margin);stroke-width:5;stroke-linecap:round;stroke-dasharray:420;stroke-dashoffset:420;animation:draw 1.3s .5s ease forwards}
@keyframes draw{to{stroke-dashoffset:0}}
.hero .lead{margin:1.6rem 0 2rem}
.cta{display:flex;flex-wrap:wrap;gap:.8rem}
.facts{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:2rem;list-style:none;padding:0}
.facts li{background:var(--mint);color:var(--text);padding:.35rem .9rem;border-radius:8px;font-weight:500;font-size:.95rem}
:root[data-theme="dark"] .facts li{color:#eceef8}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:1.4rem;margin-top:2rem}
.course{background:var(--paper);border:2px solid var(--ink);border-radius:14px 14px 14px 4px;padding:1.4rem}
.course:nth-child(2){border-radius:14px 4px 14px 14px}
.course:nth-child(3){border-radius:4px 14px 14px 14px}
.course p{color:var(--muted)}
.tag{display:inline-block;background:var(--hl);color:#2a2b3a;font-weight:700;font-size:.85rem;padding:.1rem .6rem;border-radius:6px;margin-bottom:.7rem}
.steps{list-style:none;padding:0;margin-top:2rem;counter-reset:s;display:grid;gap:1.1rem;max-width:40rem}
.steps li{counter-increment:s;padding-left:3.4rem;position:relative}
.steps li::before{content:counter(s);position:absolute;left:0;top:-.1rem;width:2.4rem;height:2.4rem;border-radius:50%;background:var(--ink);color:#fff;font:800 1.2rem/2.4rem var(--hand);text-align:center}
:root[data-theme="dark"] .steps li::before{color:#10142a}
@media(prefers-color-scheme:dark){:root:not([data-theme="light"]) .steps li::before{color:#10142a}}
.steps b{font-family:var(--hand);color:var(--ink);font-size:1.15rem}
.note{background:var(--hl);color:#2a2b3a;padding:1.6rem 1.8rem;border-radius:4px 18px 4px 18px;max-width:42rem;transform:rotate(-.6deg)}
.note h2{color:#2a2b3a}
details{border-bottom:2px dashed var(--line);padding:1rem 0;max-width:42rem}
summary{cursor:pointer;font:600 1.15rem var(--hand);color:var(--ink)}
details p{margin-top:.6rem;color:var(--muted)}
form{display:grid;gap:1rem;max-width:30rem;margin-top:1.6rem}
label{display:grid;gap:.3rem;font-weight:600}
input,select{font:inherit;padding:.7rem .9rem;border:2px solid var(--ink);border-radius:10px;background:var(--paper);color:var(--text)}
footer{padding:2.5rem 0 3rem;color:var(--muted);font-size:.95rem}
footer a{color:var(--ink)}
@media(prefers-reduced-motion:reduce){.hero path{animation:none;stroke-dashoffset:0}html{scroll-behavior:auto}.btn{transition:none}}

.doc{padding-top:2.5rem;padding-bottom:4rem}.doc h1{font-size:clamp(2rem,6vw,3rem);margin-bottom:.4rem}
.doc h2{font-size:1.4rem;margin:2rem 0 .4rem}.doc p,.doc li{max-width:42rem;margin-bottom:.7rem}.doc ul{padding-left:1.2rem}
.upd{color:var(--muted);font-size:.95rem}.doc table{border-collapse:collapse;margin:1rem 0}.doc td{border:2px solid var(--ink);padding:.6rem 1rem}
.doc h1{display:inline-block;padding-bottom:.5rem;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 300 12' preserveAspectRatio='none'%3E%3Cpath d='M2 7 C 60 1, 110 11, 160 5 S 260 2, 298 7' fill='none' stroke='%23e5484d' stroke-width='4' stroke-linecap='round'/%3E%3C/svg%3E") left bottom/100% 10px no-repeat}
.doc .lead{margin:1.2rem 0 1.6rem}
.doc .card{background:var(--paper);border:2px solid var(--ink);border-radius:14px 14px 14px 4px;padding:1.2rem 1.5rem 1rem;margin:1.2rem 0;max-width:46rem}
.doc .card:nth-of-type(even){border-radius:14px 4px 14px 14px}
.doc .card h2{margin:0 0 .6rem;font-size:1.35rem;background:linear-gradient(transparent 80%,color-mix(in srgb,var(--hl) 80%,transparent) 80% 93%,transparent 93%);display:inline-block;padding:0 .3rem .15rem;line-height:1.3}
.doc .card p:last-child,.doc .card ul:last-child{margin-bottom:.3rem}
.doc .note{margin:1.4rem 0;transform:rotate(-.4deg)}
.doc .note h2{font-size:1.2rem;margin:0 0 .4rem;background:none;padding:0}
.doc .note ul{margin:0}
.doc .note li{margin-bottom:.3rem}
.doc .btn{margin-top:.3rem}

.doc .hint{font-size:.95rem;color:var(--muted);margin:0}
.doc form{margin-top:.4rem;max-width:30rem}
.btn:disabled{opacity:.6;cursor:wait;transform:none}
.pay-msg{padding:.8rem 1rem;border-radius:10px;font-weight:500;max-width:30rem;margin:0}
.pay-msg.ok{background:var(--mint);color:var(--text)}
.pay-msg.err{background:#ffd9da;color:#7a1218}