:root{
  --primary:#10b981; --bg:#0d1714; --ink:#e7f6ef; --accent:#fbbf24;
  --card:#122018; --line:#1e3028; --mute:#7db898; --paper:#0f1e18;
  --display:'Montserrat',system-ui,sans-serif; --body:'Lora',Georgia,serif;
  --r:16px;
}
*{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:1.05;font-weight:900;letter-spacing:-.02em}
h1{font-size:clamp(32px,5vw,60px)}
h1 em{font-style:italic;color:var(--primary);font-weight:700}
h2{font-size:clamp(24px,3.2vw,40px)}
h3{font-size:18px;font-weight:700;font-family:var(--display)}
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:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--primary);margin-bottom:16px;font-family:var(--display)}
.eyebrow--accent{color:var(--accent)}

/* nav */
.nav{position:sticky;top:0;z-index:30;background:rgba(13,23,20,.9);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav__in{display:flex;align-items:center;gap:20px;height:66px}
.brand{font-family:var(--display);font-weight:900;font-size:19px;text-decoration:none;color:var(--ink);display:flex;align-items:center;gap:8px}
.brand__icon{color:var(--primary);font-size:26px;line-height:1}
.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;font-family:var(--display);transition:color .15s}
.nav__links a:hover{color:var(--primary)}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--primary);color:#0d1714;text-decoration:none;font-weight:700;font-family:var(--display);padding:13px 24px;border-radius:999px;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:17px 34px;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:#0d1714}
.btn--white{background:#e7f6ef;color:#0d1714}
.btn--white:hover{background:#fff}

/* hero */
.hero{padding:clamp(40px,5vw,80px) 0}
.hero__outer{display:flex;flex-direction:column;gap:clamp(30px,4vw,50px)}
.hero__zigzag{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,5vw,70px);align-items:center}
.hero__text-col h1{margin-bottom:20px}
.hero__text-col .lead{margin-bottom:28px}
.hero__cta{display:flex;gap:12px;flex-wrap:wrap}
.hero__fig{position:relative;display:block}
.hero__fig img{width:100%;height:clamp(340px,40vw,500px);object-fit:cover;border-radius:24px;display:block;box-shadow:0 40px 70px -20px rgba(0,0,0,.6)}
.hero__badge{position:absolute;top:20px;left:20px;background:var(--accent);color:#0d1714;font-family:var(--display);font-weight:900;font-size:14px;padding:8px 14px;border-radius:999px}
.hero__stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.stat{background:var(--card);padding:22px 20px;text-align:center}
.stat b{display:block;font-family:var(--display);font-size:clamp(28px,3vw,40px);font-weight:900;color:var(--primary)}
.stat span{font-size:13px;color:var(--mute);font-family:var(--display);font-weight:500}

/* section */
.section{padding:clamp(50px,7vw,90px) 0}
.section--paper{background:var(--paper)}
.section__head{max-width:52ch;margin-bottom:40px}
.section__head p{color:var(--mute);margin-top:10px}

/* 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;transition:border-color .2s}
.course-card:hover{border-color:var(--primary)}
.course-card__ico{font-size:32px;line-height:1;margin-bottom:4px}
.course-card h3{color:var(--ink)}
.course-card p{color:var(--mute);font-size:14.5px;flex:1}
.course-card__meta{font-family:var(--display);font-weight:700;color:var(--accent);font-size:15px;margin-top:auto;padding-top:12px;border-top:1px solid var(--line)}

/* concert */
.concert-section{background:linear-gradient(135deg,#0f2a20 0%,#153322 100%);padding:clamp(50px,7vw,90px) 0;border-block:1px solid var(--line)}
.concert__in{display:grid;grid-template-columns:1.3fr .7fr;gap:clamp(30px,5vw,70px);align-items:center}
.concert__text h2{margin-bottom:16px}
.concert__text p{color:var(--mute);margin-bottom:14px;max-width:52ch}
.concert__list{list-style:none;margin-top:24px;display:grid;gap:10px}
.concert__list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--ink)}
.concert__list li::before{content:'♩';color:var(--primary);font-size:16px;flex-shrink:0;margin-top:1px}
.concert__visual{display:flex;flex-direction:column;align-items:center;gap:20px}
.concert__note{font-size:clamp(80px,12vw,140px);color:var(--primary);opacity:.2;line-height:1;text-align:center;font-family:var(--display)}
.concert__card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:26px 28px;text-align:center;width:100%;font-size:15px;color:var(--mute)}
.concert__card strong{display:block;font-family:var(--display);font-size:22px;font-weight:900;color:var(--accent);margin:8px 0 4px}
.concert__card span{font-size:13px}

/* teachers */
.teachers-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.teacher-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:26px;display:flex;flex-direction:column;gap:10px;min-height:220px}
.teacher-card__ava{width:52px;height:52px;border-radius:50%;background:var(--primary);display:flex;align-items:center;justify-content:center;font-family:var(--display);font-weight:900;font-size:16px;color:#0d1714;flex-shrink:0}
.teacher-card h3{color:var(--ink)}
.teacher-card p{color:var(--mute);font-size:14.5px;flex:1}
.teacher-card__exp{font-family:var(--display);font-size:12px;font-weight:700;color:var(--accent);text-transform:uppercase;letter-spacing:.1em;padding-top:10px;border-top:1px solid var(--line)}

/* contact */
.contact-section{background:var(--primary);padding:clamp(50px,7vw,80px) 0}
.contact__in{display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap}
.contact__copy h2{color:#0d1714;margin-bottom:10px;font-family:var(--display)}
.contact__copy p{color:rgba(13,23,20,.8);max-width:44ch;margin-top:6px}
.contact__details{margin-top:18px;display:grid;gap:6px}
.contact__details p{font-size:15px;color:#0d1714}

/* footer */
.foot{background:#080f0c;padding:28px 0;border-top:1px solid var(--line)}
.foot__in{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;font-size:13.5px;color:var(--mute);font-family:var(--display)}

@media(max-width:900px){
  .hero__zigzag{grid-template-columns:1fr}
  .hero__fig img{height:280px}
  .hero__stats{grid-template-columns:repeat(2,1fr)}
  .courses-grid{grid-template-columns:repeat(2,1fr)}
  .concert__in{grid-template-columns:1fr}
  .concert__visual{display:none}
  .teachers-grid{grid-template-columns:1fr 1fr}
  .nav__links{display:none}
  .contact__in{flex-direction:column;align-items:flex-start}
}
@media(max-width:520px){
  .courses-grid{grid-template-columns:1fr}
  .teachers-grid{grid-template-columns:1fr}
  .hero__stats{grid-template-columns:repeat(2,1fr)}
}