:root{--ink:#14110f;--ink2:#1d1916;--paper:#f5eee2;--paper2:#ebe2d2;--brass:#d99a45;--brass-d:#8a5a17;--wine:#7a2433;--mute:#6b6257;--line:rgba(20,17,15,.14);--serif:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif;--sans:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;--r:16px}
*{box-sizing:border-box;margin:0}
html{scroll-behavior:smooth;scroll-padding-top:76px}
body{font:17px/1.6 var(--sans);color:var(--ink);background:var(--paper);overflow-x:hidden;-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:var(--serif);font-weight:500;line-height:1.1;letter-spacing:-.01em}
a{color:inherit}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:#fff;padding:8px 14px;border-radius:8px;z-index:99}
.skip:focus{left:8px}
:focus-visible{outline:3px solid var(--brass);outline-offset:3px}
.eyebrow{font:600 .74rem/1 var(--sans);letter-spacing:.16em;text-transform:uppercase;color:var(--brass-d)}
.dark .eyebrow,.hero .eyebrow{color:var(--brass)}

/* header */
.top{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:24px;padding:14px clamp(18px,4vw,56px);background:rgba(20,17,15,.92);backdrop-filter:blur(10px);color:#f5eee2}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font:500 1.35rem var(--serif);margin-right:auto}
.top nav{display:flex;gap:22px}
.top nav a{text-decoration:none;font-size:.92rem;opacity:.8;padding:6px 0}
.top nav a:hover{opacity:1}

.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 26px;border:1.5px solid var(--brass);border-radius:999px;background:var(--brass);color:var(--ink);font:600 .98rem var(--sans);text-decoration:none;cursor:pointer;transition:transform .15s,background .15s}
.btn:hover{transform:translateY(-2px);background:#e5ab5c}
.btn-sm{min-height:40px;padding:0 18px;font-size:.88rem}
.btn-line{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-line:hover{background:var(--ink);color:var(--paper)}
.link-arrow{font-weight:600;text-decoration:none;border-bottom:1.5px solid currentColor;padding-bottom:2px}
.link-arrow::after{content:" →"}

/* hero */
.hero{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(28px,5vw,80px);align-items:center;padding:clamp(48px,8vw,110px) clamp(18px,4vw,56px) clamp(90px,10vw,140px);background:radial-gradient(1200px 500px at 85% 0,#3a2410 0,transparent 60%),var(--ink);color:#f5eee2;overflow:hidden}
.hero h1{font-size:clamp(2.5rem,6vw,5rem);margin:18px 0 22px}
.hero h1 em{color:var(--brass);font-style:italic}
.lead{font-size:1.15rem;max-width:34em;opacity:.85}
.cta-row{display:flex;flex-wrap:wrap;gap:24px;align-items:center;margin:32px 0 40px}
.proof{display:flex;gap:clamp(20px,4vw,48px);list-style:none;padding:0;border-top:1px solid rgba(245,238,226,.18);padding-top:22px}
.proof b{display:block;font:500 2rem var(--serif);color:var(--brass)}
.proof span{font-size:.82rem;opacity:.7}
.hero-play{background:var(--ink2);border:1px solid rgba(245,238,226,.12);border-radius:24px;padding:clamp(20px,3vw,34px);box-shadow:0 30px 80px rgba(0,0,0,.45)}
.hint{font-size:.85rem;opacity:.7;margin:10px 0 18px}
kbd{font:600 .75rem var(--sans);border:1px solid rgba(245,238,226,.3);border-radius:5px;padding:1px 6px}
.keys{position:relative;display:flex;height:190px;user-select:none;touch-action:manipulation}
.key{flex:1;border:1px solid #bbb;border-top:0;border-radius:0 0 8px 8px;background:linear-gradient(#fff,#e9e2d4);color:var(--mute);font:600 .7rem var(--sans);display:flex;align-items:flex-end;justify-content:center;padding-bottom:10px;cursor:pointer;transition:background .08s,transform .08s}
.key.on{background:var(--brass);transform:translateY(2px)}
.key.black{position:absolute;top:0;width:11%;height:62%;z-index:2;background:linear-gradient(#2b2622,#000);border:0;border-radius:0 0 6px 6px;color:#aaa;box-shadow:0 4px 8px rgba(0,0,0,.5);flex:none}
.key.black.on{background:var(--brass-d)}
.note{margin-top:16px;font:italic 1.05rem var(--serif);color:var(--brass);min-height:1.6em}
.wave{position:absolute;left:0;bottom:0;width:100%;height:80px;color:var(--brass);opacity:.35}

/* sections */
.sec{padding:clamp(60px,8vw,110px) clamp(18px,4vw,56px)}
.sec-head{max-width:760px;margin:0 auto clamp(32px,5vw,56px);text-align:center}
.sec-head h2{font-size:clamp(1.9rem,4vw,3.1rem);margin-top:14px}
.sec.dark{background:var(--ink);color:#f5eee2}
.sec.band{background:var(--paper2)}
.narrow{max-width:820px;margin:0 auto}

.grid-inst{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:18px;max-width:1200px;margin:0 auto}
.card{display:flex;flex-direction:column;gap:10px;padding:26px;background:#fff9ef;border:1px solid var(--line);border-radius:var(--r);transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(60,40,10,.12)}
.card .ico{width:44px;height:44px;border-radius:12px;background:var(--ink);color:var(--brass);display:grid;place-items:center;font:500 1.3rem var(--serif)}
.card h3{font-size:1.5rem}
.card p{color:var(--mute);font-size:.95rem}
.card .lvl{font:600 .72rem var(--sans);letter-spacing:.1em;text-transform:uppercase;color:var(--brass-d);margin-top:auto}
.card a{font-weight:600;font-size:.92rem}

.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(20px,3vw,40px);list-style:none;padding:0;max-width:1100px;margin:0 auto}
.steps li{border-top:1px solid rgba(245,238,226,.25);padding-top:22px}
.steps .n{font:italic 3.4rem var(--serif);color:var(--brass);line-height:1}
.steps h3{font-size:1.5rem;margin:12px 0 8px}
.steps p{opacity:.78}

.teachers{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:18px;max-width:1200px;margin:0 auto}
.teacher{text-align:center}
.avatar{aspect-ratio:1;border-radius:50%;display:grid;place-items:center;font:500 2.6rem var(--serif);color:#fff;margin:0 auto 14px;width:100%;max-width:170px}
.teacher h3{font-size:1.2rem}
.teacher p{font-size:.88rem;color:var(--mute)}

/* booking */
.book{display:grid;grid-template-columns:1.25fr .75fr;gap:clamp(20px,3vw,40px);max-width:1100px;margin:0 auto;align-items:start}
form{background:#fff9ef;border:1px solid var(--line);border-radius:24px;padding:clamp(20px,3vw,36px);display:grid;gap:22px}
fieldset{border:0;padding:0;min-width:0}
legend{font:600 .8rem var(--sans);letter-spacing:.08em;text-transform:uppercase;color:var(--brass-d);margin-bottom:10px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{min-height:44px;padding:0 16px;border:1.5px solid var(--line);border-radius:12px;background:#fff;font:500 .92rem var(--sans);cursor:pointer;color:var(--ink);transition:.15s}
.chip:hover:not(:disabled){border-color:var(--ink)}
.chip[aria-checked=true]{background:var(--ink);color:var(--brass);border-color:var(--ink)}
.chip:disabled{opacity:.4;text-decoration:line-through;cursor:not-allowed}
.days .chip{display:flex;flex-direction:column;align-items:center;line-height:1.15;padding:6px 14px;min-width:64px}
.days .chip small{font-size:.68rem;text-transform:uppercase;letter-spacing:.08em;opacity:.7}
.days .chip b{font:500 1.25rem var(--serif)}
.fields{display:grid;gap:14px}
.fields legend{margin-bottom:0}
label{display:grid;gap:6px;font-size:.88rem;font-weight:600}
input{min-height:48px;border:1.5px solid var(--line);border-radius:12px;padding:0 14px;font:400 1rem var(--sans);background:#fff;color:var(--ink)}
input:focus{border-color:var(--ink)}
.err{color:#a3162e;font-size:.82rem;font-weight:500;min-height:0}
.demo{font-size:.8rem;color:var(--mute)}
.ticket{position:sticky;top:90px;background:var(--ink);color:#f5eee2;border-radius:24px;padding:28px;background-image:radial-gradient(circle at 0 50%,var(--paper2) 12px,transparent 13px),radial-gradient(circle at 100% 50%,var(--paper2) 12px,transparent 13px)}
.ticket-main{font:500 1.6rem/1.2 var(--serif);margin:12px 0 20px}
.ticket dl{display:grid;gap:12px;border-top:1px dashed rgba(245,238,226,.3);padding-top:18px}
.ticket dt{font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;opacity:.6}
.ticket dd{margin:0}
.ok{margin-top:18px;padding:14px;border-radius:12px;background:rgba(217,154,69,.16);color:var(--brass);font-weight:600}

.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;max-width:1100px;margin:0 auto;align-items:stretch}
.plans article{position:relative;display:flex;flex-direction:column;gap:14px;padding:32px;border:1px solid var(--line);border-radius:24px;background:#fff9ef}
.plans .hi{background:var(--ink);color:#f5eee2;border-color:var(--ink);transform:translateY(-10px)}
.plans h3{font-size:1.5rem}
.price{font:500 2.8rem var(--serif);color:var(--brass-d)}
.hi .price{color:var(--brass)}
.price small{font:400 1rem var(--sans);opacity:.6}
.plans ul{padding-left:18px;display:grid;gap:6px;flex:1}
.hi .btn-line{color:var(--paper);border-color:var(--paper)}
.tag{position:absolute;top:-12px;left:32px;background:var(--brass);color:var(--ink);font:700 .7rem var(--sans);letter-spacing:.08em;text-transform:uppercase;padding:5px 12px;border-radius:999px}

.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;max-width:1100px;margin:0 auto}
blockquote{padding:28px;border-left:3px solid var(--brass);background:#fff9ef;border-radius:0 var(--r) var(--r) 0}
blockquote p{font:italic 1.2rem/1.45 var(--serif)}
blockquote footer{margin-top:14px;font-size:.85rem;color:var(--mute)}
blockquote em{opacity:.8}

details{border-bottom:1px solid var(--line);padding:18px 0}
summary{cursor:pointer;font:500 1.25rem var(--serif);list-style:none;display:flex;justify-content:space-between;gap:16px}
summary::after{content:"+";color:var(--brass-d);font-size:1.5rem;line-height:1}
details[open] summary::after{content:"–"}
details p{margin-top:10px;color:var(--mute)}

.foot{display:flex;flex-wrap:wrap;justify-content:space-between;gap:24px;padding:48px clamp(18px,4vw,56px);background:var(--ink);color:#f5eee2;font-size:.92rem}
.brand-line{font:500 1.6rem var(--serif);color:var(--brass);margin-bottom:6px}
.legal{max-width:420px;opacity:.7}

@media (max-width:900px){
  .top nav{display:none}
  .hero,.book{grid-template-columns:1fr}
  .steps,.plans,.quotes{grid-template-columns:1fr}
  .plans .hi{transform:none}
  .ticket{position:static}
}
@media (max-width:480px){
  body{font-size:16px}
  .keys{height:160px}
  .proof{gap:18px}
  .btn{width:100%}
  .btn-sm{width:auto}
  .cta-row{gap:16px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
@media (min-width:1100px){.grid-inst{grid-template-columns:repeat(5,1fr)}}