@font-face{font-family:"Montserrat";src:url(../fonts/montserrat-latin.woff2) format("woff2");font-weight:400 800;font-display:swap}
:root{
  --lime:#c8d214;--lime-d:#a9b20c;--lime-soft:#f5f7d5;
  --ink:#16181d;--ink-2:#23262e;--text:#3a3d45;--muted:#6b6f79;
  --bg:#ffffff;--bg-2:#f5f6f2;--line:#e6e8e1;
  --r:14px;--max:1180px;--shadow:0 10px 30px rgba(22,24,29,.08)
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Montserrat",system-ui,-apple-system,Segoe UI,Arial,sans-serif;color:var(--text);background:var(--bg);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3,h4{color:var(--ink);line-height:1.2;margin:0 0 .6em;font-weight:800;letter-spacing:-.01em}
h1{font-size:clamp(2rem,4.6vw,3.4rem)}
h2{font-size:clamp(1.6rem,3.2vw,2.4rem)}
h3{font-size:1.25rem}
p{margin:0 0 1em}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.eyebrow{display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--ink);background:var(--lime);padding:.35em .8em;border-radius:99px;margin-bottom:1rem}
.eyebrow.ghost{background:transparent;border:1px solid rgba(255,255,255,.35);color:#fff}
.hl{background:linear-gradient(transparent 62%,var(--lime) 62%);padding:0 .1em}
.btn{display:inline-flex;align-items:center;gap:.5em;font-weight:700;text-decoration:none;padding:.95em 1.6em;border-radius:99px;border:2px solid transparent;transition:.2s;cursor:pointer;font-size:.95rem;font-family:inherit}
.btn-lime{background:var(--lime);color:var(--ink)}
.btn-lime:hover{background:var(--lime-d)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#000}
.btn-line{border-color:currentColor;color:inherit;background:transparent}
.btn-line:hover{background:rgba(255,255,255,.1)}
.section{padding:clamp(60px,9vw,110px) 0}
.section.alt{background:var(--bg-2)}
.section.dark{background:var(--ink);color:#c9ccd3}
.section.dark h2,.section.dark h3{color:#fff}
.center{text-align:center}
.lead{font-size:1.12rem;color:var(--muted);max-width:720px}
.center .lead{margin-left:auto;margin-right:auto}

/* topbar + header */
.topbar{background:var(--ink);color:#c9ccd3;font-size:.82rem}
.topbar .wrap{display:flex;gap:24px;justify-content:flex-end;padding-top:8px;padding-bottom:8px;flex-wrap:wrap}
.topbar a{text-decoration:none}.topbar a:hover{color:var(--lime)}
.header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.header .wrap{display:flex;align-items:center;justify-content:space-between;height:78px}
.logo img{height:46px;width:auto}
.nav{display:flex;align-items:center;gap:6px}
.nav>a,.nav .dd>button{font-weight:600;font-size:.93rem;text-decoration:none;color:var(--ink);padding:.6em .9em;border-radius:8px;background:none;border:0;font-family:inherit;cursor:pointer}
.nav>a:hover,.nav .dd>button:hover,.nav a.active{color:var(--ink);background:var(--lime-soft)}
.dd{position:relative}
.dd-menu{position:absolute;top:100%;left:50%;transform:translateX(-50%);background:#fff;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:10px;width:360px;display:none}
.dd:hover .dd-menu,.dd:focus-within .dd-menu{display:block}
.dd-menu a{display:block;padding:.55em .8em;border-radius:8px;text-decoration:none;font-size:.88rem;color:var(--ink)}
.dd-menu a:hover{background:var(--lime-soft)}
.nav .btn{margin-left:10px;padding:.75em 1.3em}
.burger{display:none;background:none;border:0;width:44px;height:44px;cursor:pointer}
.burger span{display:block;height:2px;background:var(--ink);margin:6px 8px;transition:.2s}

/* hero */
.hero{position:relative;background:var(--ink);color:#d6d8de;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:var(--hero-img) center/cover no-repeat;opacity:.28}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,var(--ink) 30%,rgba(22,24,29,.55))}
.hero .wrap{position:relative;z-index:1;padding-top:clamp(80px,12vw,150px);padding-bottom:clamp(80px,12vw,150px)}
.hero h1{color:#fff;max-width:820px}
.hero p{font-size:1.15rem;max-width:620px}
.hero .ctas{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.hero-stats{display:flex;gap:40px;margin-top:56px;flex-wrap:wrap}
.hero-stats b{display:block;color:var(--lime);font-size:1.6rem}
.hero-stats span{font-size:.85rem}

/* page head */
.pagehead{background:var(--ink);color:#c9ccd3;padding:clamp(56px,8vw,96px) 0 clamp(40px,6vw,64px);position:relative;overflow:hidden}
.pagehead::after{content:"";position:absolute;right:-120px;top:-120px;width:380px;height:380px;border-radius:50%;background:var(--lime);opacity:.12}
.pagehead h1{color:#fff;max-width:900px}
.crumbs{font-size:.85rem;margin-bottom:14px}
.crumbs a{text-decoration:none;color:#c9ccd3}.crumbs a:hover{color:var(--lime)}
.crumbs span{color:var(--lime)}
.chips{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.chip{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);color:#fff;border-radius:99px;padding:.45em 1em;font-size:.88rem}
.chip b{color:var(--lime)}

/* grids & cards */
.grid{display:grid;gap:24px}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:30px;transition:.25s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.icon{width:54px;height:54px;border-radius:12px;background:var(--lime);display:grid;place-items:center;margin-bottom:18px}
.icon svg{width:28px;height:28px;stroke:var(--ink)}
.card p{margin:0;color:var(--muted)}
.course{display:flex;flex-direction:column;overflow:hidden;padding:0;text-decoration:none}
.course .ph{aspect-ratio:16/10;background:var(--bg-2) center/cover no-repeat}
.course .bd{padding:22px 24px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.course .tag{font-size:.75rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--lime-d)}
.course h3{font-size:1.08rem;margin:0}
.course .more{margin-top:auto;font-weight:700;font-size:.88rem;color:var(--ink)}
.course:hover .more{color:var(--lime-d)}
.filters{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-bottom:36px}
.filters button{font-family:inherit;font-weight:600;font-size:.9rem;border:1px solid var(--line);background:#fff;border-radius:99px;padding:.6em 1.2em;cursor:pointer}
.filters button.on{background:var(--ink);color:#fff;border-color:var(--ink)}

.split{display:grid;grid-template-columns:1.05fr 1fr;gap:clamp(30px,6vw,80px);align-items:center}
.split .media{border-radius:20px;overflow:hidden;position:relative;aspect-ratio:4/3.4;background:var(--bg-2) center/cover}
.split .media::after{content:"";position:absolute;left:-1px;bottom:-1px;width:120px;height:120px;background:var(--lime);border-top-right-radius:20px}
.checks{list-style:none;padding:0;margin:20px 0 0}
.checks li{padding-left:34px;position:relative;margin-bottom:14px}
.checks li::before{content:"";position:absolute;left:0;top:4px;width:22px;height:22px;border-radius:50%;background:var(--lime) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2316181d' stroke-width='3'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") center/13px no-repeat}
.checks b{color:var(--ink)}
.section.dark .checks b{color:#fff}

/* faq */
details{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:0 24px;margin-bottom:12px}
summary{cursor:pointer;font-weight:700;color:var(--ink);padding:20px 0;list-style:none;display:flex;justify-content:space-between;gap:16px}
summary::after{content:"+";font-size:1.4rem;line-height:1;color:var(--lime-d)}
details[open] summary::after{content:"–"}
details p{padding-bottom:20px;margin:0;color:var(--muted)}

/* cta band */
.band{background:var(--lime);border-radius:24px;padding:clamp(36px,6vw,64px);display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap}
.band h2{margin:0;max-width:640px}
.band p{margin:.4em 0 0;color:var(--ink-2)}

/* course page */
.course-layout{display:grid;grid-template-columns:300px 1fr;gap:clamp(30px,5vw,60px);align-items:start}
.side{position:sticky;top:100px;display:flex;flex-direction:column;gap:18px}
.side .box{background:var(--bg-2);border-radius:var(--r);padding:22px}
.side h4{font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;margin-bottom:12px}
.side nav a{display:block;padding:.5em .7em;border-radius:8px;text-decoration:none;font-size:.88rem;color:var(--ink)}
.side nav a:hover{background:#fff}
.side nav a.active{background:var(--ink);color:#fff}
.side .box.dark{background:var(--ink);color:#c9ccd3}
.side .box.dark h4{color:#fff}
.prose{max-width:760px}
.prose h2,.prose h3,.prose h4{margin-top:1.6em}
.prose strong{color:var(--ink)}
.prose ul{padding-left:0;list-style:none}
.prose ul li{padding-left:28px;position:relative;margin-bottom:.6em}
.prose ul li::before{content:"";position:absolute;left:4px;top:.62em;width:10px;height:10px;border-radius:3px;background:var(--lime)}
.prose ol{padding-left:1.3em}
.prose figure{margin:32px 0;border-radius:var(--r);overflow:hidden}
.prose .duo{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:32px 0}
.prose .duo img{border-radius:var(--r);aspect-ratio:4/3;object-fit:cover;width:100%}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1.25fr;gap:clamp(30px,5vw,60px)}
.info-item{display:flex;gap:16px;align-items:flex-start;padding:20px 0;border-bottom:1px solid var(--line)}
.info-item .icon{margin:0;flex:none;width:48px;height:48px}
.info-item small{display:block;color:var(--muted);font-size:.8rem;text-transform:uppercase;letter-spacing:.1em;font-weight:600}
.info-item a,.info-item b{font-weight:700;color:var(--ink);text-decoration:none;font-size:1.05rem}
.form{background:#fff;border:1px solid var(--line);border-radius:20px;padding:clamp(24px,4vw,40px);box-shadow:var(--shadow)}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form label{display:block;font-size:.85rem;font-weight:600;color:var(--ink);margin-bottom:14px}
.form input,.form textarea,.form select{display:block;width:100%;margin-top:6px;font:inherit;font-size:.95rem;padding:.85em 1em;border:1px solid var(--line);border-radius:10px;background:var(--bg-2);color:var(--ink)}
.form input:focus,.form textarea:focus,.form select:focus{outline:2px solid var(--lime);border-color:var(--lime);background:#fff}
.form textarea{min-height:130px;resize:vertical}
.form .privacy{display:flex;gap:10px;align-items:flex-start;font-weight:400;color:var(--muted)}
.form .privacy input{width:auto;margin-top:4px}
.hp{position:absolute;left:-9999px}
.alert{padding:14px 18px;border-radius:10px;margin-bottom:18px;font-weight:600}
.alert.ok{background:var(--lime-soft);color:var(--ink)}
.alert.ko{background:#fde8e6;color:#8a1f12}

/* footer */
.footer{background:var(--ink);color:#9ea2ab;padding:70px 0 0;font-size:.92rem}
.footer .grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px}
.footer h4{color:#fff;font-size:.85rem;letter-spacing:.12em;text-transform:uppercase}
.footer a{text-decoration:none}.footer a:hover{color:var(--lime)}
.footer ul{list-style:none;padding:0;margin:0}.footer li{margin-bottom:8px}
.footer .logo-w{height:44px;width:auto;margin-bottom:18px}
.footer .bottom{border-top:1px solid rgba(255,255,255,.08);margin-top:50px;padding:22px 0;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:.82rem}

.reveal{opacity:0;transform:translateY(18px);transition:.6s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}

@media (max-width:1024px){
  .g4{grid-template-columns:repeat(2,1fr)}
  .g3{grid-template-columns:repeat(2,1fr)}
  .footer .grid{grid-template-columns:1fr 1fr}
  .course-layout{grid-template-columns:1fr}
  .side{position:static;order:2}
}
@media (max-width:900px){
  .burger{display:block}
  .nav{position:fixed;inset:78px 0 0 0;background:#fff;flex-direction:column;align-items:stretch;padding:20px;gap:4px;overflow:auto;display:none}
  body.menu-open .nav{display:flex;animation:navin .25s ease}
  @keyframes navin{from{transform:translateX(24px);opacity:0}to{transform:none;opacity:1}}
  body.menu-open{overflow:hidden}
  .dd-menu{position:static;transform:none;display:block;width:auto;box-shadow:none;border:0;padding:0 0 0 12px}
  .nav .btn{margin:14px 0 0;justify-content:center}
  .split,.contact-grid{grid-template-columns:1fr}
  .split .media{aspect-ratio:16/10}
  .topbar .wrap{justify-content:center;gap:14px}
}
@media (max-width:640px){
  .g2,.g3,.g4,.form .row,.prose .duo{grid-template-columns:1fr}
  .footer .grid{grid-template-columns:1fr}
  .hero-stats{gap:24px}
  .topbar .hide-sm{display:none}
}

.privacy input[type=checkbox]{width:20px;height:20px;flex:0 0 20px;accent-color:var(--lime-d)}