:root{
  --primary:#2d6a4f; --bg:#f1faf5; --ink:#14241c; --accent:#40916c;
  --dark:#112219; --card:#fff; --line:#cce8d6; --mute:#4a7a5e; --paper:#e8f5ed;
  --display:'Druk Wide Cyrillic',system-ui,sans-serif; --body:'Inter',system-ui,sans-serif;
  --r:14px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--body);color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
.wrap{width:min(1140px,92vw);margin-inline:auto}
h1,h2,h3{font-family:var(--display);line-height:1;font-weight:700}
h1{font-size:clamp(32px,5vw,62px)}
h2{font-size:clamp(24px,3.5vw,44px)}
h3{font-size:17px}
p{font-size:clamp(15px,1.4vw,17px);line-height:1.65}
.lead{font-size:clamp(16px,1.6vw,19px);color:var(--mute);max-width:48ch}
.eyebrow{display:inline-block;font-size:11px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);margin-bottom:14px;font-family:var(--body)}
.eyebrow--lt{color:rgba(255,255,255,.65)}

/* nav */
.nav{position:sticky;top:0;z-index:30;background:rgba(241,250,245,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav__in{display:flex;align-items:center;gap:20px;height:66px}
.brand{font-family:var(--display);font-weight:700;font-size:17px;text-decoration:none;color:var(--ink);display:flex;align-items:center;gap:10px}
.brand__sq{width:12px;height:12px;background:var(--primary);border-radius:2px;flex-shrink:0}
.nav__links{display:flex;gap:24px;margin-left:auto}
.nav__links a{text-decoration:none;color:var(--mute);font-size:14.5px;font-weight:500;transition:color .15s}
.nav__links a:hover{color:var(--primary)}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--primary);color:#fff;text-decoration:none;font-weight:600;font-family:var(--body);padding:13px 26px;border-radius:var(--r);font-size:15px;transition:transform .15s,opacity .15s}
.btn:hover{transform:translateY(-2px);opacity:.9}
.btn--sm{padding:9px 17px;font-size:13px}
.btn--lg{padding:18px 36px;font-size:17px}
.btn--outline{background:transparent;color:var(--primary);box-shadow:inset 0 0 0 2px var(--primary)}
.btn--outline:hover{background:var(--primary);color:#fff}

/* hero — centered stack */
.hero{padding:clamp(50px,7vw,90px) 0}
.hero__in{display:flex;flex-direction:column;align-items:center;text-align:center;gap:24px}
.hero__in h1{max-width:14ch}
.hero__in .lead{margin-inline:auto}
.hero__cta{display:flex;gap:14px;flex-wrap:wrap;justify-content:center}
.hero__fig{width:100%;margin-top:14px;position:relative}
.hero__fig img{width:100%;height:clamp(280px,38vw,480px);object-fit:cover;border-radius:20px;display:block;box-shadow:0 30px 60px -20px rgba(20,36,28,.25)}
.hero__caption{position:absolute;bottom:16px;left:16px;background:var(--card);padding:8px 14px;border-radius:999px;font-size:13px;font-weight:500;color:var(--mute);box-shadow:0 4px 12px rgba(0,0,0,.12)}

/* section */
.section{padding:clamp(52px,7vw,90px) 0}
.section__head{max-width:54ch;margin-bottom:40px}
.section__head p{color:var(--mute);margin-top:10px;font-size:16px}

/* courses */
.courses-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.course-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:26px;display:flex;flex-direction:column;gap:10px;min-height:240px}
.course-card__age{align-self:flex-start;background:var(--paper);color:var(--primary);font-size:12px;font-weight:600;padding:4px 12px;border-radius:999px;font-family:var(--body)}
.course-card h3{color:var(--ink)}
.course-card p{color:var(--mute);font-size:14.5px;flex:1}
.course-card__price{font-family:var(--display);font-weight:700;color:var(--accent);font-size:16px;margin-top:auto;padding-top:12px;border-top:1px solid var(--line)}

/* etude */
.etude-section{background:var(--dark);color:#fff;padding:clamp(52px,7vw,90px) 0}
.etude__in{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(30px,5vw,70px);align-items:start}
.etude__left h2{color:#fff;margin-bottom:20px}
.etude__left p{color:rgba(255,255,255,.65);max-width:50ch;margin-bottom:14px;font-size:15.5px}
.etude__right{padding-top:8px}
.etude__list{display:grid;gap:18px}
.etude__item{display:flex;align-items:flex-start;gap:14px}
.etude__ico{color:var(--accent);font-size:20px;flex-shrink:0;margin-top:1px}
.etude__item b{display:block;color:#fff;font-weight:600;margin-bottom:4px;font-size:15px}
.etude__item span{font-size:14px;color:rgba(255,255,255,.5);display:block}

/* about */
.about__in{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(30px,5vw,60px);align-items:start}
.about__text h2{margin-bottom:16px}
.about__text p{color:var(--mute);margin-bottom:14px;max-width:52ch;font-size:15.5px}
.about__pillars{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.pillar{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:20px;text-align:center}
.pillar b{display:block;font-family:var(--display);font-size:clamp(24px,3vw,36px);color:var(--primary);margin-bottom:4px}
.pillar span{font-size:13px;color:var(--mute)}

/* contact */
.contact-section{background:var(--primary);padding:clamp(50px,7vw,80px) 0;color:#fff}
.contact__in{display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap}
.contact__text h2{color:#fff;margin-bottom:10px}
.contact__text p{color:rgba(255,255,255,.8);max-width:44ch;margin-top:6px}
.contact__details{margin-top:18px;display:grid;gap:6px}
.contact__details p{font-size:15px;color:rgba(255,255,255,.9)}
.contact-section .btn--lg{background:#fff;color:var(--primary)}
.contact-section .btn--lg:hover{background:#e8f5ed}

/* footer */
.foot{background:var(--dark);border-top:1px solid rgba(255,255,255,.06);padding:26px 0}
.foot__in{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.35);font-family:var(--body)}

@media(max-width:900px){
  .courses-grid{grid-template-columns:repeat(2,1fr)}
  .etude__in{grid-template-columns:1fr}
  .about__in{grid-template-columns:1fr}
  .nav__links{display:none}
  .contact__in{flex-direction:column;align-items:flex-start}
}
@media(max-width:520px){
  .courses-grid{grid-template-columns:1fr}
  .about__pillars{grid-template-columns:1fr 1fr}
}