:root {
  --navy:#1A1A2E; --navy2:#22223B; --navy3:#0D0D1A;
  --gold:#C9A84C; --gold2:#E8C96A;
  --ivory:#FDFAF4; --white:#FFFFFF;
  --muted:rgba(253,250,244,0.65); --faint:rgba(253,250,244,0.5);
  --c-melodica:#1ABC9C;  --c-kid-piano:#0f9c8f;
  --c-keyboard:#3498DB;  --c-accordion:#E67E22;
  --c-sparkle:#E74C3C;   --c-purple:#9B59B6;
  --kid:#27AE60; --kid2:#1ABC9C;
  --r:12px; --t:0.22s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter',sans-serif;background:var(--navy);color:var(--ivory);-webkit-font-smoothing:antialiased;line-height:1.6}
.container{max-width:1140px;margin:0 auto;padding:0 28px}
.serif{font-family:'Cormorant Garamond',serif}
.gold{color:var(--gold)}
.center{text-align:center}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 28px;border-radius:var(--r);font-family:'Inter',sans-serif;font-weight:600;font-size:.9rem;text-decoration:none;cursor:pointer;border:none;transition:var(--t)}
.btn-gold{background:var(--gold);color:var(--navy3)}
.btn-gold:hover{background:var(--gold2);transform:translateY(-2px);box-shadow:0 8px 24px rgba(201,168,76,.25)}
.btn-outline{background:transparent;color:var(--gold);border:1.5px solid var(--gold)}
.btn-outline:hover{background:rgba(201,168,76,.1);transform:translateY(-2px)}
.btn-lg{padding:18px 36px;font-size:1rem;border-radius:14px}
.btn-kid{background:var(--kid);color:var(--white)}
.btn-kid:hover{background:var(--kid2);transform:translateY(-2px);box-shadow:0 8px 24px rgba(39,174,96,.25)}
/* NAV */
nav{position:sticky;top:0;z-index:1000;background:rgba(26,26,46,.97);backdrop-filter:blur(16px);border-bottom:1px solid rgba(201,168,76,.18)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:12px;max-width:1140px;margin:0 auto;padding:0 28px}
.nav-logo{display:flex;align-items:center;gap:12px;text-decoration:none;flex-shrink:0}
.nav-logo-divider{width:1px;height:48px;background:var(--gold);opacity:.22;flex-shrink:0}
.logo-name{font-family:'Cormorant Garamond',serif;font-size:2rem;font-weight:700;color:var(--ivory);display:block;letter-spacing:.12em;line-height:1}
.logo-sub{font-size:.56rem;font-weight:500;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);display:block;margin-top:5px}
.logo-author{font-family:'Cormorant Garamond',serif;font-size:.78rem;font-weight:400;font-style:italic;color:var(--ivory);opacity:.4;display:block;margin-top:4px;letter-spacing:.04em}
.nav-right{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-back{color:var(--muted);font-size:.85rem;font-weight:500;padding:8px 14px;border-radius:8px;text-decoration:none;transition:var(--t);white-space:nowrap}
.nav-back:hover{color:var(--gold);background:rgba(201,168,76,.08)}
.lang-toggle{display:flex;align-items:center;border:1px solid rgba(201,168,76,.35);border-radius:20px;overflow:hidden;flex-shrink:0}
.lang-toggle button{padding:5px 11px;background:none;border:none;color:var(--muted);cursor:pointer;font-size:.65rem;font-weight:700;letter-spacing:.07em;font-family:'Inter',sans-serif;transition:var(--t);text-transform:uppercase}
.lang-toggle button.lang-active{background:var(--gold);color:var(--navy)}
.lang-toggle button:hover:not(.lang-active){color:var(--ivory)}
.lang-sep{width:1px;height:16px;background:rgba(201,168,76,.3);flex-shrink:0}
/* HERO */
.hero{padding:80px 0 60px;background:linear-gradient(135deg,var(--navy3) 0%,rgba(39,174,96,.08) 50%,var(--navy) 100%);position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;top:-60px;right:-60px;width:300px;height:300px;border-radius:50%;background:radial-gradient(circle,rgba(26,188,156,.08),transparent 70%);pointer-events:none}
.hero::after{content:'';position:absolute;bottom:-80px;left:-40px;width:250px;height:250px;border-radius:50%;background:radial-gradient(circle,rgba(155,89,182,.06),transparent 70%);pointer-events:none}
.hero-inner{max-width:1100px;margin:0 auto;padding:0 28px;position:relative;z-index:1}
.hero-tag{display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(39,174,96,.4);background:rgba(39,174,96,.08);color:var(--kid);font-size:.7rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;padding:5px 14px;border-radius:30px;margin-bottom:24px}
.hero-tag::before{content:'';width:5px;height:5px;border-radius:50%;background:var(--kid)}
.hero h1{font-family:'Cormorant Garamond',serif;font-size:clamp(2.4rem,5vw,3.8rem);font-weight:700;line-height:1.1;margin-bottom:20px;max-width:860px}
.hero h1 em{color:var(--gold);font-style:italic}
.hero p{font-size:1.05rem;color:var(--muted);max-width:640px;line-height:1.75;margin-bottom:36px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
/* SECTION */
.section{padding:80px 0}
.section-inner{max-width:1100px;margin:0 auto;padding:0 28px}
.section-label{font-size:.72rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--gold);margin-bottom:16px}
h2.section-title{font-family:'Cormorant Garamond',serif;font-size:clamp(1.9rem,3.5vw,2.8rem);font-weight:700;color:var(--white);line-height:1.15;margin-bottom:20px}
h2.section-title em{color:var(--gold);font-style:italic}
.section-sub{color:var(--muted);line-height:1.8;font-size:1rem;margin-bottom:24px}
/* CONTENT GRID */
.content-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;margin-top:20px}
.content-text p{color:var(--muted);line-height:1.8;margin-bottom:20px;font-size:.98rem}
.benefit-list{list-style:none;margin-bottom:28px}
.benefit-list li{display:flex;align-items:flex-start;gap:12px;font-size:.92rem;color:rgba(253,250,244,.82);margin-bottom:14px;line-height:1.6}
.benefit-list li::before{content:'✓';color:var(--gold);font-weight:700;flex-shrink:0;margin-top:1px}
/* INSTRUMENT CARDS */
.instr-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:40px}
.instr-card{background:var(--navy2);border-radius:20px;padding:32px 28px;position:relative;overflow:hidden;transition:var(--t);border:1px solid rgba(255,255,255,.07)}
.instr-card:hover{transform:translateY(-6px)}
.instr-card[data-i="melodica"]{border-color:rgba(26,188,156,.2)}
.instr-card[data-i="melodica"]:hover{box-shadow:0 12px 40px rgba(26,188,156,.12)}
.instr-card[data-i="piano"]{border-color:rgba(15,155,142,.2)}
.instr-card[data-i="piano"]:hover{box-shadow:0 12px 40px rgba(15,155,142,.12)}
.instr-card[data-i="keyboard"]{border-color:rgba(52,152,219,.2)}
.instr-card[data-i="keyboard"]:hover{box-shadow:0 12px 40px rgba(52,152,219,.12)}
.instr-card[data-i="accordion"]{border-color:rgba(230,126,34,.2)}
.instr-card[data-i="accordion"]:hover{box-shadow:0 12px 40px rgba(230,126,34,.12)}
.instr-accent{position:absolute;top:0;left:0;right:0;height:4px}
.instr-card[data-i="melodica"] .instr-accent{background:var(--c-melodica)}
.instr-card[data-i="piano"] .instr-accent{background:var(--c-kid-piano)}
.instr-card[data-i="keyboard"] .instr-accent{background:var(--c-keyboard)}
.instr-card[data-i="accordion"] .instr-accent{background:var(--c-accordion)}
.instr-icon{font-size:2.8rem;margin-bottom:12px;display:block}
.instr-card h3{font-family:'Cormorant Garamond',serif;font-size:1.4rem;font-weight:700;color:var(--white);margin-bottom:6px}
.instr-tag{font-size:.7rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;margin-bottom:12px;display:inline-block}
.instr-card[data-i="melodica"] .instr-tag{color:var(--c-melodica)}
.instr-card[data-i="piano"] .instr-tag{color:var(--c-kid-piano)}
.instr-card[data-i="keyboard"] .instr-tag{color:var(--c-keyboard)}
.instr-card[data-i="accordion"] .instr-tag{color:var(--c-accordion)}
.instr-desc{color:var(--muted);font-size:.9rem;line-height:1.72;margin-bottom:16px}
.instr-cta{font-weight:600;font-size:.85rem;text-decoration:none;display:inline-flex;align-items:center;gap:5px;transition:var(--t)}
.instr-cta::after{content:'→'}
.instr-card[data-i="melodica"] .instr-cta{color:var(--c-melodica)}
.instr-card[data-i="melodica"] .instr-cta:hover{color:#16A085}
.instr-card[data-i="piano"] .instr-cta{color:var(--c-kid-piano)}
.instr-card[data-i="piano"] .instr-cta:hover{color:#0B7A6F}
.instr-card[data-i="keyboard"] .instr-cta{color:var(--c-keyboard)}
.instr-card[data-i="keyboard"] .instr-cta:hover{color:#3092d1}
.instr-card[data-i="accordion"] .instr-cta{color:var(--c-accordion)}
.instr-card[data-i="accordion"] .instr-cta:hover{color:#d0721f}
/* KID CARD */
.kid-card{background:linear-gradient(135deg,rgba(39,174,96,.08),rgba(39,174,96,.02));border:1px solid rgba(39,174,96,.25);border-radius:20px;padding:36px 32px;position:relative;overflow:hidden}
.kid-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--kid),var(--kid2))}
.kid-card-title{font-family:'Cormorant Garamond',serif;font-size:1.5rem;font-weight:700;color:var(--white);margin-bottom:12px}
.kid-card-sub{font-size:.92rem;color:var(--muted);line-height:1.72;margin-bottom:16px}
.kid-card-features{list-style:none}
.kid-card-features li{display:flex;align-items:flex-start;gap:10px;font-size:.86rem;color:rgba(253,250,244,.78);margin-bottom:10px;line-height:1.5}
.kid-card-features li::before{content:'🎵';flex-shrink:0}
/* PRICING */
.pricing-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:16px}
.price-card{background:var(--navy2);border:1px solid rgba(255,255,255,.08);border-radius:16px;padding:28px 24px;text-align:center;position:relative;overflow:hidden;transition:var(--t)}
.price-card:hover{transform:translateY(-6px)}
.price-card.featured{border-color:rgba(201,168,76,.4)}
.price-accent{position:absolute;top:0;left:0;right:0;height:3px}
.price-card:nth-child(1) .price-accent{background:var(--c-kid-piano)}
.price-card:nth-child(2) .price-accent{background:var(--c-keyboard)}
.price-card:nth-child(3) .price-accent{background:var(--c-purple)}
.price-card:nth-child(4) .price-accent{background:var(--gold)}
.price-badge{display:inline-block;font-size:.65rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;padding:4px 10px;border-radius:20px;margin-bottom:16px}
.price-card:nth-child(1) .price-badge{background:rgba(15,155,142,.15);color:var(--c-kid-piano)}
.price-card:nth-child(2) .price-badge{background:rgba(52,152,219,.15);color:var(--c-keyboard)}
.price-card:nth-child(3) .price-badge{background:rgba(155,89,182,.15);color:var(--c-purple)}
.price-card:nth-child(4) .price-badge{background:rgba(201,168,76,.15);color:var(--gold)}
.price-name{font-family:'Cormorant Garamond',serif;font-size:1.3rem;font-weight:700;color:var(--white);margin-bottom:16px;line-height:1.2}
.price-amount{font-family:'Cormorant Garamond',serif;font-size:2.8rem;font-weight:700;color:var(--white);line-height:1;margin-bottom:4px}
.price-amount sup{font-size:1.2rem;vertical-align:super}
.price-period{font-size:.78rem;color:var(--faint);margin-bottom:20px}
.price-features{list-style:none;text-align:left;margin-bottom:24px}
.price-features li{display:flex;gap:8px;font-size:.82rem;color:var(--muted);margin-bottom:8px;line-height:1.5}
.price-features li::before{content:'✓';color:var(--gold);flex-shrink:0;font-weight:700}
.price-btn{display:block;width:100%;padding:13px;text-align:center;border-radius:10px;font-weight:700;font-size:.875rem;text-decoration:none;transition:var(--t);font-family:'Inter',sans-serif;cursor:pointer;border:none}
.price-btn.primary{background:var(--gold);color:var(--navy3)}
.price-btn.primary:hover{background:var(--gold2)}
.price-btn.secondary{background:transparent;border:1.5px solid rgba(255,255,255,.15);color:var(--muted)}
.price-btn.secondary:hover{border-color:var(--gold);color:var(--gold)}
.featured-badge{position:absolute;top:14px;right:14px;background:var(--gold);color:var(--navy3);font-size:.62rem;font-weight:700;padding:3px 10px;border-radius:20px;letter-spacing:.08em}
/* FAQ */
.faq-list{max-width:760px;margin:0 auto}
.faq-item{border-top:1px solid rgba(201,168,76,.15);padding:22px 0}
.faq-item:last-child{border-bottom:1px solid rgba(201,168,76,.15)}
.faq-q{font-size:1rem;font-weight:600;color:var(--white);margin-bottom:8px;cursor:pointer;display:flex;justify-content:space-between;align-items:center}
.faq-q::after{content:'+';color:var(--gold);font-size:1.2rem;font-weight:400;transition:transform .2s}
.faq-q.open::after{content:'−'}
.faq-a{font-size:.92rem;color:var(--muted);line-height:1.75;max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a.open{max-height:600px}
/* CTA BAND */
.cta-band{padding:80px 0;background:var(--navy2);text-align:center}
.cta-band p{color:var(--muted);max-width:560px;margin:0 auto 28px;font-size:1rem;line-height:1.7}
/* WHY SECTION */
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:40px}
.why-card{background:var(--navy2);border:1px solid rgba(255,255,255,.06);border-radius:16px;padding:28px 24px;text-align:center;transition:var(--t)}
.why-card:hover{transform:translateY(-4px)}
.why-ico{font-size:2.2rem;margin-bottom:12px;display:block}
.why-card h3{font-family:'Cormorant Garamond',serif;font-size:1.2rem;font-weight:700;color:var(--white);margin-bottom:8px}
.why-card p{font-size:.85rem;color:var(--muted);line-height:1.7}
/* FOOTER */
footer{background:var(--navy3);border-top:1px solid rgba(255,255,255,.06);padding:72px 0 32px}
.footer-inner{max-width:1140px;margin:0 auto;padding:0 28px}
.footer-grid{display:grid;grid-template-columns:2.2fr 1fr 1fr 1fr;gap:48px;margin-bottom:56px}
.footer-brand-name{font-family:'Cormorant Garamond',serif;font-size:1.4rem;font-weight:700;color:var(--gold);margin-bottom:10px}
.footer-tagline{font-size:.82rem;color:var(--faint);line-height:1.7;max-width:280px}
.footer-col h4{font-size:.65rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--faint);margin-bottom:18px}
.footer-col a,.footer-col button{display:block;color:rgba(253,250,244,.6);text-decoration:none;font-size:.875rem;margin-bottom:10px;transition:.15s;width:100%;text-align:left;background:none;border:none;font-family:inherit;cursor:pointer}
.footer-col a:hover,.footer-col button:hover{color:var(--gold)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.06);padding-top:28px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.footer-bottom p{font-size:.78rem;color:rgba(253,250,244,.3)}
.social-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}
.social-btn{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;border:1px solid rgba(201,168,76,.25);background:rgba(201,168,76,.06);color:rgba(253,250,244,.55);text-decoration:none;transition:var(--t);flex-shrink:0}
.social-btn:hover{border-color:var(--gold);background:rgba(201,168,76,.15);color:var(--gold);transform:translateY(-2px)}
.social-btn svg{width:16px;height:16px;fill:currentColor}
@media(max-width:900px){
  .content-grid{grid-template-columns:1fr}
  .instr-grid{grid-template-columns:1fr;gap:16px}
  .why-grid{grid-template-columns:1fr}
  .pricing-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr}
}
@media(max-width:640px){
  .pricing-grid{grid-template-columns:1fr}
  .logo-author{display:none}
  .nav-logo-divider{display:none}
  .nav-back span{display:none}
  .section-title{overflow-wrap:break-word;word-break:break-word}
  .instr-grid{gap:14px}
}