/* ========================================
   DESIGN 2: DARK CONCERT HALL
   ======================================== */
:root {
    --stage-black: #0A0A14;
    --velvet: #12121F;
    --velvet-light: #1A1A2E;
    --spotlight-gold: #D4A843;
    --warm-gold: #F5D88A;
    --soft-gold: rgba(212,168,67,0.15);
    --silver: #9CA3AF;
    --silver-light: #D1D5DB;
    --white: #FFFFFF;
    --burgundy: #6B1D2A;
    --curtain-red: #8B2540;
    --curtain-light: #A33055;
    --font-display: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'Inter', -apple-system, sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-body);color:var(--silver-light);line-height:1.6;background:var(--stage-black);overflow-x:hidden;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button{border:none;background:none;cursor:pointer;font-family:inherit;color:inherit}

/* CURTAIN OVERLAY */
.curtain-overlay{position:fixed;inset:0;z-index:9999;pointer-events:none;display:flex;align-items:center;justify-content:center}
.curtain{position:absolute;top:0;bottom:0;width:50%;background:linear-gradient(90deg,var(--curtain-red) 0%,var(--burgundy) 30%,var(--curtain-light) 50%,var(--burgundy) 70%,var(--curtain-red) 100%);transition:transform 1.8s cubic-bezier(0.65,0,0.35,1);z-index:2}
.curtain::before{content:'';position:absolute;top:0;left:0;right:0;height:30px;background:linear-gradient(180deg,rgba(0,0,0,0.4),transparent)}
.curtain-left{left:0;transform-origin:left}
.curtain-right{right:0;transform-origin:right}
.curtain-open .curtain-left{transform:translateX(-105%)}
.curtain-open .curtain-right{transform:translateX(105%)}
.curtain-text{font-family:var(--font-display);font-style:italic;font-size:1.5rem;color:var(--warm-gold);z-index:1;opacity:1;transition:opacity 0.5s ease 0.3s}
.curtain-open .curtain-text{opacity:0}

/* SPOTLIGHT LAYER */
.spotlight-layer{position:fixed;inset:0;pointer-events:none;z-index:1;background:radial-gradient(600px circle at var(--mouse-x,50%) var(--mouse-y,30%),rgba(212,168,67,0.04),transparent 60%)}

/* CONTAINER */
.container{max-width:1200px;margin:0 auto;padding:0 1.5rem}

/* HEADER */
.header{position:fixed;top:0;left:0;right:0;z-index:1000;padding:1rem 0;transition:all 0.3s}
.header.scrolled{background:rgba(10,10,20,0.85);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid rgba(212,168,67,0.1);padding:0.75rem 0}
.header-container{display:flex;align-items:center;justify-content:space-between;gap:2rem}
.logo-img{height:44px}
.nav-list{display:flex;gap:2rem}
.nav-link{font-size:0.85rem;font-weight:500;color:var(--silver);letter-spacing:0.05em;text-transform:uppercase;transition:color 0.3s;position:relative}
.nav-link:hover,.nav-link.active{color:var(--spotlight-gold)}
.nav-link::after{content:'';position:absolute;bottom:-4px;left:0;width:0;height:1px;background:var(--spotlight-gold);transition:width 0.3s}
.nav-link:hover::after,.nav-link.active::after{width:100%}
.btn-header{display:inline-flex;align-items:center;gap:0.5rem;padding:0.6rem 1.2rem;border:1px solid rgba(212,168,67,0.3);border-radius:2px;font-size:0.8rem;font-weight:600;color:var(--spotlight-gold);letter-spacing:0.05em;text-transform:uppercase;transition:all 0.3s}
.btn-header:hover{background:rgba(212,168,67,0.1);border-color:var(--spotlight-gold)}
.mobile-menu-btn{display:none;flex-direction:column;gap:5px;padding:8px;z-index:1001}
.mobile-menu-btn span{display:block;width:24px;height:2px;background:var(--spotlight-gold);transition:all 0.3s}
.mobile-menu-btn.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.mobile-menu-btn.active span:nth-child(2){opacity:0}
.mobile-menu-btn.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* BUTTONS */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:0.5rem;font-family:var(--font-body);font-weight:600;transition:all 0.3s;cursor:pointer;text-decoration:none;white-space:nowrap}
.btn-gold{padding:0.875rem 2rem;background:var(--spotlight-gold);color:var(--stage-black);border-radius:2px;font-size:0.9rem;letter-spacing:0.03em;text-transform:uppercase}
.btn-gold:hover{background:var(--warm-gold);transform:translateY(-2px);box-shadow:0 8px 30px rgba(212,168,67,0.25)}
.btn-large{padding:1rem 2.5rem;font-size:1rem}
.btn-ghost-gold{padding:0.875rem 2rem;border:1px solid rgba(212,168,67,0.3);color:var(--spotlight-gold);border-radius:2px;font-size:0.9rem}
.btn-ghost-gold:hover{background:rgba(212,168,67,0.08);border-color:var(--spotlight-gold)}
.btn-block{width:100%}

/* SECTION HEADERS */
.section-label{display:block;font-family:var(--font-body);font-size:0.75rem;font-weight:600;letter-spacing:0.2em;color:var(--spotlight-gold);margin-bottom:1rem;text-transform:uppercase}
.section-title{font-family:var(--font-display);font-size:2.75rem;font-weight:400;line-height:1.2;color:var(--white);margin-bottom:1rem}
.section-title em{color:var(--spotlight-gold);font-weight:500}
.section-header{text-align:center;margin-bottom:4rem}

/* STAFF LINES */
.staff-lines{position:absolute;inset:0;background-image:repeating-linear-gradient(0deg,transparent,transparent 79px,rgba(212,168,67,0.04) 79px,rgba(212,168,67,0.04) 80px);pointer-events:none}

/* HERO */
.hero{min-height:100vh;display:flex;align-items:center;position:relative;padding:8rem 0 4rem;background:radial-gradient(ellipse 600px 800px at 50% 30%,rgba(212,168,67,0.06),transparent 70%),var(--stage-black)}
.hero-container{text-align:center;position:relative;z-index:2}
.hero-badge{font-size:0.75rem;font-weight:600;letter-spacing:0.2em;color:var(--spotlight-gold);margin-bottom:2rem}
.hero-title{font-family:var(--font-display);font-size:3.5rem;font-weight:700;line-height:1.1;color:var(--white);margin-bottom:1.5rem}
.hero-title em{font-weight:400;color:var(--spotlight-gold);display:block;margin-top:0.25rem}
.hero-subtitle{font-size:1.05rem;color:var(--silver);max-width:600px;margin:0 auto 2.5rem;line-height:1.7}
.hero-cta{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;margin-bottom:2.5rem}
.hero-proof{display:flex;align-items:center;justify-content:center;gap:0.5rem;font-size:0.85rem;color:var(--silver)}

/* PIANO DIVIDER */
.piano-divider{background:var(--stage-black);padding:0;overflow:hidden}
.piano-keys{display:flex;justify-content:center;height:40px;gap:0}
.piano-key{position:relative;flex-shrink:0;transition:transform 0.2s}
.piano-key-white{width:28px;height:40px;background:linear-gradient(180deg,#f0f0f0,#fff);border-right:1px solid #ddd;border-bottom:2px solid #ccc;border-radius:0 0 3px 3px}
.piano-key-black{width:18px;height:25px;background:linear-gradient(180deg,#333,#1a1a1a);margin:0 -9px;z-index:1;border-radius:0 0 2px 2px;box-shadow:0 2px 4px rgba(0,0,0,0.3)}
.piano-key:hover{transform:scaleY(0.95)}

/* INSTRUMENTS */
.instruments{padding:6rem 0;background:var(--velvet)}
.instruments-scroll{display:grid;grid-template-columns:repeat(5,1fr);gap:1.25rem}
.instrument-card{background:var(--stage-black);border-left:3px solid var(--spotlight-gold);padding:2rem 1.5rem;transition:all 0.3s}
.instrument-card:hover{border-left-width:6px;box-shadow:0 0 30px rgba(212,168,67,0.08)}
.card-icon{margin-bottom:1.25rem}
.card-icon svg{stroke:var(--spotlight-gold)}
.instrument-card h3{font-family:var(--font-display);font-size:1.4rem;font-weight:600;color:var(--white);margin-bottom:0.25rem}
.card-tagline{font-family:var(--font-display);font-style:italic;font-size:0.95rem;color:var(--spotlight-gold);display:block;margin-bottom:0.75rem}
.instrument-card p{font-size:0.875rem;color:var(--silver);line-height:1.6}

/* FEATURES */
.features{padding:6rem 0;background:var(--stage-black)}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem}
.feature-card{padding:2rem;position:relative}
.feature-card::before{content:'';display:block;width:40px;height:2px;background:var(--spotlight-gold);margin-bottom:1.25rem}
.feature-number{font-family:var(--font-display);font-size:2rem;font-weight:300;color:rgba(212,168,67,0.25);position:absolute;top:1rem;right:1.5rem}
.feature-card h3{font-family:var(--font-display);font-size:1.3rem;font-weight:600;color:var(--white);margin-bottom:0.75rem}
.feature-card p{font-size:0.9rem;color:var(--silver);line-height:1.65}

/* TESTIMONIALS */
.testimonials{padding:6rem 0;background:var(--velvet)}
.testimonials-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem;align-items:start}
.testimonial-card{padding:2rem;border:1px solid rgba(212,168,67,0.15);position:relative;background:var(--stage-black)}
.testimonial-card::before,.testimonial-card::after{content:'';position:absolute;width:20px;height:20px}
.testimonial-card::before{top:-1px;left:-1px;border-top:2px solid var(--spotlight-gold);border-left:2px solid var(--spotlight-gold)}
.testimonial-card::after{bottom:-1px;right:-1px;border-bottom:2px solid var(--spotlight-gold);border-right:2px solid var(--spotlight-gold)}
.testimonial-featured{box-shadow:0 0 60px rgba(212,168,67,0.06);border-color:rgba(212,168,67,0.3)}
.testimonial-stars{display:flex;gap:0.25rem;margin-bottom:1rem}
.testimonial-card p{font-family:var(--font-display);font-size:1.1rem;font-style:italic;color:var(--silver-light);line-height:1.6;margin-bottom:1.25rem}
.testimonial-card footer{display:flex;align-items:center;gap:0.75rem;padding-top:1rem;border-top:1px solid rgba(212,168,67,0.1)}
.author-avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--burgundy),var(--curtain-red));display:flex;align-items:center;justify-content:center;font-size:0.8rem;font-weight:700;color:var(--warm-gold);flex-shrink:0}
.testimonial-card cite{display:block;font-style:normal;font-weight:600;font-size:0.9rem;color:var(--white)}
.testimonial-card footer span{display:block;font-size:0.8rem;color:var(--silver)}

/* OFFER */
.offer{padding:6rem 0;background:var(--stage-black)}
.offer-card{display:flex;max-width:800px;margin:0 auto;background:var(--velvet);border:1px solid rgba(212,168,67,0.2);overflow:hidden}
.offer-stub{flex:0 0 220px;background:linear-gradient(135deg,#B8860B,#FFD700,#B8860B);padding:2.5rem 1.5rem;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}
.offer-stub .section-label{color:var(--stage-black);opacity:0.7;margin-bottom:1rem}
.old-price{font-size:0.9rem;color:var(--stage-black);opacity:0.6;text-decoration:line-through;display:block}
.new-price{display:flex;align-items:baseline;gap:0.15rem}
.new-price .amount{font-family:var(--font-display);font-size:4rem;font-weight:700;color:var(--stage-black);line-height:1}
.new-price .currency{font-size:1.25rem;font-weight:600;color:var(--stage-black)}
.price-note{font-size:0.8rem;color:var(--stage-black);opacity:0.6;margin-top:0.5rem}
.offer-perforation{flex:0 0 2px;border-left:2px dashed var(--spotlight-gold);opacity:0.4}
.offer-details{flex:1;padding:2.5rem}
.offer-title{font-family:var(--font-display);font-size:1.75rem;font-weight:400;color:var(--white);margin-bottom:0.75rem}
.offer-title em{color:var(--spotlight-gold);font-weight:500}
.offer-desc{font-size:0.95rem;color:var(--silver);margin-bottom:1.5rem}
.offer-features{display:flex;flex-direction:column;gap:0.6rem;margin-bottom:1.5rem}
.offer-features li{display:flex;align-items:center;gap:0.6rem;font-size:0.9rem;color:var(--silver-light)}
.offer-urgency{text-align:center;font-size:0.85rem;color:var(--spotlight-gold);margin-top:1rem;animation:pulse-glow 2s ease-in-out infinite}
@keyframes pulse-glow{0%,100%{opacity:0.7}50%{opacity:1;text-shadow:0 0 10px rgba(212,168,67,0.4)}}
.offer-guarantee{display:flex;align-items:center;justify-content:center;gap:0.5rem;font-size:0.8rem;color:var(--silver);margin-top:0.75rem}

/* CONTACT */
.contact{padding:6rem 0;background:var(--velvet)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:2rem}
.contact-info{display:flex;flex-direction:column;gap:0}
.contact-item{display:flex;align-items:center;gap:1rem;padding:1.25rem 0;border-bottom:1px solid rgba(212,168,67,0.08);transition:all 0.3s}
.contact-item:last-child{border-bottom:none}
a.contact-item:hover{padding-left:0.5rem}
.contact-item span{display:block;font-size:0.75rem;color:var(--silver);margin-bottom:0.1rem}
.contact-item strong{font-size:0.95rem;color:var(--white)}
.contact-map{border:2px solid rgba(212,168,67,0.2);border-radius:4px;overflow:hidden;min-height:300px}
.contact-map iframe{width:100%;height:100%;min-height:300px}

/* FOOTER */
.footer{padding:4rem 0 2rem;background:var(--stage-black);border-top:1px solid rgba(212,168,67,0.08)}
.footer-treble{text-align:center;margin-bottom:2rem}
.footer-content{display:flex;justify-content:space-between;gap:3rem;margin-bottom:2rem}
.footer-brand{max-width:280px}
.footer-logo{height:40px;margin-bottom:1rem}
.footer-brand p{font-size:0.9rem;color:var(--silver);font-family:var(--font-display);font-style:italic}
.footer-links{display:flex;gap:4rem}
.footer-col h4{font-size:0.75rem;font-weight:600;letter-spacing:0.15em;color:var(--spotlight-gold);text-transform:uppercase;margin-bottom:1rem}
.footer-col ul{display:flex;flex-direction:column;gap:0.6rem}
.footer-col a,.footer-col li{font-size:0.875rem;color:var(--silver);transition:color 0.3s}
.footer-col a:hover{color:var(--spotlight-gold)}
.footer-bottom{padding-top:2rem;border-top:1px solid rgba(212,168,67,0.08);text-align:center}
.footer-bottom p{font-size:0.8rem;color:var(--silver)}

/* MOBILE CTA */
.mobile-cta{display:none;position:fixed;bottom:0;left:0;right:0;padding:0.75rem 1rem;background:rgba(10,10,20,0.9);backdrop-filter:blur(20px);border-top:1px solid rgba(212,168,67,0.15);z-index:999;opacity:0;transform:translateY(100%);transition:all 0.3s}
.mobile-cta.visible{opacity:1;transform:translateY(0)}
.mobile-cta .btn{width:100%;font-size:0.85rem;padding:0.75rem}

/* ANIMATIONS */
[data-animate]{opacity:0;transform:translateY(30px);transition:opacity 0.6s ease,transform 0.6s ease}
[data-animate].visible{opacity:1;transform:translateY(0)}

/* RESPONSIVE */
@media(max-width:1024px){
    .instruments-scroll{grid-template-columns:repeat(3,1fr)}
    .features-grid{grid-template-columns:repeat(2,1fr)}
    .section-title{font-size:2.25rem}
    .hero-title{font-size:2.75rem}
}
@media(max-width:768px){
    .nav{display:none;position:fixed;inset:0;background:rgba(10,10,20,0.95);backdrop-filter:blur(30px);z-index:1000;align-items:center;justify-content:center}
    .nav.active{display:flex}
    .nav-list{flex-direction:column;gap:2rem;text-align:center}
    .nav-link{font-size:1.1rem}
    .btn-header{display:none}
    .mobile-menu-btn{display:flex}
    .mobile-cta{display:block}
    .hero{padding:6rem 0 3rem;min-height:auto}
    .hero-title{font-size:2rem}
    .hero-cta{flex-direction:column;align-items:stretch}
    .instruments,.features,.testimonials,.offer,.contact{padding:4rem 0}
    .instruments-scroll{grid-template-columns:1fr;gap:1rem}
    .features-grid{grid-template-columns:1fr}
    .testimonials-grid{grid-template-columns:1fr}
    .section-title{font-size:1.75rem}
    .offer-card{flex-direction:column}
    .offer-stub{flex:none;padding:2rem 1.5rem}
    .offer-perforation{border-left:none;border-top:2px dashed var(--spotlight-gold);height:2px;width:100%}
    .contact-grid{grid-template-columns:1fr}
    .footer-content{flex-direction:column;gap:2rem}
    .footer-links{flex-wrap:wrap;gap:2rem}
    .piano-divider{display:none}
    body{padding-bottom:70px}
}
@media(max-width:480px){
    .hero-title{font-size:1.75rem}
    .footer-links{flex-direction:column;gap:1.5rem}
}
@media(prefers-reduced-motion:reduce){
    *,*::before,*::after{animation-duration:0.01ms!important;animation-iteration-count:1!important;transition-duration:0.01ms!important}
    [data-animate]{opacity:1;transform:none}
    .curtain{transition-duration:0.01ms!important}
}