:root {
  --bg: #0b0f15;
  --bg-soft: #10151d;
  --panel: #171d27;
  --panel-2: #1d2430;
  --line: #303a49;
  --text: #f7f8fc;
  --muted: #a8b0c0;
  --muted-2: #7f899b;
  --purple: #8978ff;
  --purple-2: #a797ff;
  --purple-deep: #2b2450;
  --green: #62e2b1;
  --shadow: 0 30px 80px rgba(0,0,0,.38);
  --radius: 24px;
  --container: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--text); background: var(--bg); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; line-height: 1.55; overflow-x: hidden; }
body::before { content: ""; position: fixed; inset: 0; z-index: -3; background: radial-gradient(circle at 70% -10%, rgba(137,120,255,.16), transparent 30%), linear-gradient(180deg, #0b0f15 0%, #0d1118 100%); }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
img { max-width: 100%; display: block; }
.container { width: min(var(--container), calc(100% - 40px)); margin-inline: auto; }
.section { padding: 104px 0; position: relative; }
.section-muted { background: rgba(255,255,255,.018); border-block: 1px solid rgba(255,255,255,.05); }
.skip-link { position: absolute; left: 14px; top: -100px; padding: 10px 14px; background: #fff; color: #000; z-index: 999; border-radius: 8px; }
.skip-link:focus { top: 14px; }
.ambient { position: fixed; width: 520px; height: 520px; filter: blur(100px); opacity: .12; border-radius: 50%; z-index: -2; pointer-events: none; }
.ambient-a { background: var(--purple); top: 10%; right: -220px; }
.ambient-b { background: #4230c0; bottom: -260px; left: -220px; }
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(11,15,21,.78); backdrop-filter: blur(18px); border-bottom: 1px solid rgba(255,255,255,.06); }
.nav-wrap { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.brand { display: inline-flex; align-items: center; gap: 11px; }
.brand img { flex: 0 0 auto; }
.brand span { display: grid; line-height: 1.08; }
.brand strong { font-size: 1.08rem; letter-spacing: -.02em; }
.brand small { color: var(--muted-2); font-size: .72rem; margin-top: 5px; }
.main-nav { display: flex; align-items: center; gap: 30px; font-size: .92rem; color: var(--muted); }
.main-nav > a:not(.button):hover { color: var(--text); }
.nav-toggle { display: none; background: transparent; border: 0; width: 42px; height: 42px; padding: 8px; }
.nav-toggle span { display: block; height: 2px; background: white; margin: 6px 0; border-radius: 4px; }
.button { min-height: 48px; padding: 0 22px; border-radius: 14px; border: 1px solid transparent; display: inline-flex; align-items: center; justify-content: center; gap: 9px; font-weight: 750; cursor: pointer; transition: .25s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: linear-gradient(135deg, var(--purple), #7563f5); box-shadow: 0 16px 34px rgba(117,99,245,.25); }
.button-primary:hover { box-shadow: 0 20px 42px rgba(117,99,245,.38); }
.button-secondary { background: var(--panel-2); border-color: var(--line); color: var(--text); }
.button-ghost { background: transparent; border-color: var(--line); color: var(--muted); }
.button-light { background: white; color: #171327; }
.button-small { min-height: 39px; padding: 0 16px; border-radius: 11px; }
.button-block { width: 100%; }
button.button:disabled { opacity: .74; cursor: default; transform: none; }
.hero { padding-top: 88px; min-height: 790px; display: grid; align-items: center; }
.hero-grid { display: grid; grid-template-columns: .94fr 1.06fr; align-items: center; gap: 54px; }
.eyebrow { display: flex; align-items: center; gap: 10px; color: var(--purple-2); text-transform: uppercase; font-size: .72rem; letter-spacing: .16em; font-weight: 800; }
.eyebrow span { width: 26px; height: 2px; background: var(--purple); border-radius: 2px; box-shadow: 0 0 12px var(--purple); }
.hero h1 { margin: 20px 0 22px; font-size: clamp(3.2rem, 6vw, 5.8rem); line-height: .96; letter-spacing: -.064em; max-width: 720px; }
.hero h1 em { font-style: normal; background: linear-gradient(100deg, #fff 0%, var(--purple-2) 45%, #7e6bff 100%); background-clip: text; color: transparent; }
.hero-lead { color: var(--muted); font-size: 1.13rem; max-width: 610px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 34px; }
.hero-trust { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; margin-top: 42px; border-top: 1px solid rgba(255,255,255,.08); padding-top: 24px; }
.hero-trust div { display: grid; gap: 2px; }
.hero-trust strong { font-size: .92rem; }
.hero-trust span { color: var(--muted-2); font-size: .73rem; }
.product-stage { position: relative; height: 650px; perspective: 1200px; }
.stage-glow { position: absolute; width: 430px; height: 430px; border-radius: 50%; background: var(--purple); filter: blur(115px); opacity: .18; right: 65px; top: 100px; }
.phone { margin: 0; position: absolute; background: #0f131a; border: 1px solid #394354; border-radius: 30px; overflow: hidden; box-shadow: var(--shadow); }
.phone img { width: 100%; height: auto; }
.phone-main { width: 385px; right: 55px; top: 10px; transform: rotateY(-8deg) rotateZ(2deg); z-index: 3; }
.phone-tempo { width: 286px; left: 5px; bottom: 5px; transform: rotateY(10deg) rotateZ(-4deg); z-index: 2; }
.floating-card { position: absolute; z-index: 5; min-width: 208px; border: 1px solid rgba(167,151,255,.36); background: rgba(23,29,39,.9); backdrop-filter: blur(12px); border-radius: 17px; padding: 13px 15px; box-shadow: 0 16px 40px rgba(0,0,0,.35); display: flex; align-items: center; gap: 12px; }
.floating-card > span { width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; background: var(--purple-deep); color: var(--purple-2); font-weight: 900; }
.floating-card div { display: grid; }
.floating-card b { font-size: .88rem; }
.floating-card small { color: var(--muted-2); font-size: .7rem; }
.floating-card-a { left: 30px; top: 100px; }
.floating-card-b { right: 0; bottom: 70px; }
.availability-strip { margin-top: 50px; min-height: 62px; border: 1px solid var(--line); background: var(--panel); border-radius: 18px; display: flex; align-items: center; padding: 0 22px; gap: 12px; }
.availability-strip p { color: var(--muted); margin: 0; flex: 1; }
.availability-strip p b { color: var(--text); }
.availability-strip a { color: var(--purple-2); font-weight: 700; font-size: .9rem; }
.live-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 6px rgba(98,226,177,.12); }
.section-heading { max-width: 720px; margin-bottom: 50px; }
.section-heading h2, .showcase-copy h2, .premium-copy h2, .final-cta h2 { font-size: clamp(2.2rem, 4vw, 3.7rem); line-height: 1.05; letter-spacing: -.045em; margin: 17px 0; }
.section-heading p, .showcase-copy > p { color: var(--muted); font-size: 1.05rem; }
.feature-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.feature-card { position: relative; min-height: 260px; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; transition: .3s ease; overflow: hidden; }
.feature-card:hover { transform: translateY(-5px); border-color: rgba(137,120,255,.55); box-shadow: 0 24px 54px rgba(0,0,0,.23); }
.feature-icon { width: 48px; height: 48px; border-radius: 15px; display: grid; place-items: center; background: var(--purple-deep); color: var(--purple-2); font-weight: 900; margin-bottom: 30px; }
.feature-card h3 { font-size: 1.16rem; margin: 0 0 9px; }
.feature-card p { color: var(--muted); margin: 0; font-size: .91rem; }
.feature-card-premium { background: linear-gradient(145deg, #19172a, #181d27); }
.badge { position: absolute; right: 20px; top: 20px; color: var(--purple-2); border: 1px solid rgba(137,120,255,.35); background: rgba(137,120,255,.1); padding: 5px 9px; border-radius: 999px; font-size: .68rem; font-weight: 800; }
.showcase-grid { display: grid; grid-template-columns: .86fr 1.14fr; align-items: center; gap: 74px; }
.check-list { list-style: none; padding: 0; margin: 32px 0 0; display: grid; gap: 15px; color: var(--muted); }
.check-list li { position: relative; padding-left: 28px; }
.check-list li::before { content: "✓"; color: var(--green); position: absolute; left: 0; font-weight: 900; }
.screen-mosaic { position: relative; min-height: 660px; }
.mosaic-item { position: absolute; overflow: hidden; margin: 0; background: #0f131a; border: 1px solid var(--line); border-radius: 26px; box-shadow: var(--shadow); }
.mosaic-item img { width: 100%; }
.mosaic-loop { width: 330px; left: 0; top: 70px; transform: rotate(-3deg); }
.mosaic-chords { width: 320px; right: 0; top: 0; transform: rotate(3deg); }
.mosaic-tempo { width: 300px; right: 52px; bottom: 0; transform: rotate(-1deg); }
.version-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; align-items: stretch; }
.version-card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 25px; display: flex; flex-direction: column; min-height: 540px; }
.version-featured { background: linear-gradient(155deg, #211c3d 0%, #171d27 50%); border-color: rgba(137,120,255,.5); box-shadow: 0 22px 65px rgba(69,51,181,.14); }
.version-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; }
.platform-icon { width: 46px; height: 46px; border-radius: 14px; background: var(--purple-deep); color: var(--purple-2); display: grid; place-items: center; font-size: 1.2rem; font-weight: 900; }
.status { padding: 5px 9px; border-radius: 999px; font-size: .68rem; font-weight: 850; text-transform: uppercase; letter-spacing: .06em; }
.status-soon { color: var(--green); background: rgba(98,226,177,.1); border: 1px solid rgba(98,226,177,.24); }
.status-beta { color: #ffd98d; background: rgba(255,217,141,.09); border: 1px solid rgba(255,217,141,.24); }
.status-dev { color: var(--purple-2); background: rgba(137,120,255,.1); border: 1px solid rgba(137,120,255,.25); }
.version-kicker { color: var(--purple-2); text-transform: uppercase; letter-spacing: .14em; font-size: .7rem; font-weight: 850; margin: 0 0 7px; }
.version-card h3 { font-size: 1.55rem; margin: 0 0 13px; }
.version-card > p:not(.version-kicker) { color: var(--muted); min-height: 100px; }
.version-card ul { list-style: none; padding: 0; margin: 12px 0 28px; display: grid; gap: 11px; color: var(--muted); font-size: .88rem; flex: 1; }
.version-card li::before { content: "✓"; color: var(--purple-2); margin-right: 9px; }
.version-card small { color: var(--muted-2); text-align: center; margin-top: 13px; }
.developer-callout { margin-top: 22px; padding: 20px; border: 1px solid var(--line); border-radius: 20px; background: var(--panel); display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.developer-callout > div { display: flex; align-items: center; gap: 16px; }
.developer-callout b { display: block; }
.developer-callout p { color: var(--muted); margin: 3px 0 0; font-size: .84rem; }
.code-icon { width: 46px; height: 46px; border-radius: 13px; display: grid; place-items: center; background: var(--purple-deep); color: var(--purple-2); font-weight: 900; }
.premium-section { overflow: hidden; background: radial-gradient(circle at 30% 50%, rgba(137,120,255,.25), transparent 42%), linear-gradient(135deg, #211850, #100f21 60%, #0b0f15); }
.premium-grid { display: grid; grid-template-columns: .82fr 1.18fr; align-items: center; gap: 70px; }
.eyebrow-light { color: #d4ccff; }
.premium-copy > p { color: #b7b1ca; max-width: 560px; }
.price { display: flex; align-items: baseline; gap: 8px; margin: 32px 0 0; }
.price strong { font-size: 3rem; letter-spacing: -.05em; }
.price span { color: #b7b1ca; }
.price-note { font-size: .78rem; margin-bottom: 24px; }
.premium-panel { background: rgba(12,13,25,.7); border: 1px solid rgba(167,151,255,.28); border-radius: 28px; padding: 26px; backdrop-filter: blur(16px); box-shadow: var(--shadow); }
.premium-panel-head { display: flex; justify-content: space-between; align-items: center; padding-bottom: 18px; border-bottom: 1px solid rgba(255,255,255,.09); }
.premium-panel-head span { color: var(--purple-2); text-transform: uppercase; font-size: .7rem; letter-spacing: .14em; font-weight: 800; }
.premium-features { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 18px; }
.premium-features div { background: rgba(255,255,255,.045); border: 1px solid rgba(255,255,255,.08); border-radius: 18px; padding: 18px; }
.premium-features span { color: var(--purple-2); font-size: .72rem; font-weight: 900; }
.premium-features b { display: block; margin: 8px 0 5px; }
.premium-features p { margin: 0; color: #9892aa; font-size: .78rem; }
.faq-grid { display: grid; grid-template-columns: .72fr 1.28fr; gap: 70px; }
.faq-heading { position: sticky; top: 115px; align-self: start; }
.accordion { display: grid; gap: 12px; }
details { background: var(--panel); border: 1px solid var(--line); border-radius: 18px; padding: 0 20px; }
summary { cursor: pointer; list-style: none; padding: 21px 34px 21px 0; position: relative; font-weight: 750; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 0; top: 16px; width: 30px; height: 30px; display: grid; place-items: center; border-radius: 10px; background: var(--panel-2); color: var(--purple-2); }
details[open] summary::after { content: "−"; }
details p { color: var(--muted); margin: 0; padding: 0 34px 21px 0; }
.final-cta { padding-block: 70px; }
.final-cta-box { min-height: 190px; border: 1px solid var(--line); border-radius: 28px; background: linear-gradient(120deg, var(--panel), #1d1934); padding: 35px 40px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 28px; }
.final-cta h2 { font-size: clamp(1.8rem, 3vw, 2.8rem); margin: 5px 0 0; }
.site-footer { padding: 68px 0 22px; border-top: 1px solid rgba(255,255,255,.07); background: #090c11; }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3,1fr); gap: 50px; }
.footer-grid h3 { font-size: .78rem; text-transform: uppercase; letter-spacing: .12em; color: var(--muted-2); margin: 0 0 18px; }
.footer-grid > div:not(.footer-brand) { display: flex; flex-direction: column; align-items: flex-start; gap: 10px; }
.footer-grid a:not(.brand) { color: var(--muted); font-size: .86rem; }
.footer-grid a:hover { color: white; }
.footer-brand > p { color: var(--muted-2); max-width: 260px; font-size: .84rem; }
.footer-osvaldt img { border-radius: 18px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.07); margin-top: 48px; padding-top: 20px; color: var(--muted-2); font-size: .75rem; display: flex; justify-content: space-between; }
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* Internal pages */
.page-hero { padding: 100px 0 55px; }
.page-hero h1 { font-size: clamp(2.7rem, 6vw, 5.5rem); letter-spacing: -.055em; line-height: .98; margin: 18px 0; }
.page-hero p { max-width: 720px; color: var(--muted); font-size: 1.08rem; }
.content-card { background: var(--panel); border: 1px solid var(--line); border-radius: 24px; padding: 32px; }
.prose { color: var(--muted); }
.prose h2, .prose h3 { color: var(--text); }
.prose h2 { margin-top: 42px; }
.prose a { color: var(--purple-2); text-decoration: underline; }
.download-list { display: grid; gap: 16px; }
.download-row { display: grid; grid-template-columns: auto 1fr auto; gap: 18px; align-items: center; background: var(--panel); border: 1px solid var(--line); border-radius: 20px; padding: 20px; }
.download-row .platform-icon { width: 52px; height: 52px; }
.download-row h2 { margin: 0 0 4px; font-size: 1.1rem; }
.download-row p { margin: 0; color: var(--muted); font-size: .84rem; }
.notice { border: 1px solid rgba(255,217,141,.25); background: rgba(255,217,141,.07); color: #d8c8a6; border-radius: 16px; padding: 16px 18px; margin-bottom: 24px; }
.support-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }
.support-card { background: var(--panel); border: 1px solid var(--line); border-radius: 20px; padding: 24px; }
.support-card p { color: var(--muted); }

@media (max-width: 1000px) {
  .hero-grid, .showcase-grid, .premium-grid, .faq-grid { grid-template-columns: 1fr; }
  .hero { min-height: unset; }
  .product-stage { margin-top: 10px; height: 650px; max-width: 680px; width: 100%; justify-self: center; }
  .feature-grid, .version-grid { grid-template-columns: 1fr 1fr; }
  .version-grid .version-card:last-child { grid-column: span 2; }
  .showcase-copy { max-width: 700px; }
  .screen-mosaic { max-width: 690px; width: 100%; justify-self: center; }
  .faq-heading { position: static; }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
  .footer-osvaldt { grid-column: 2; }
}
@media (max-width: 760px) {
  .container { width: min(100% - 28px, var(--container)); }
  .section { padding: 76px 0; }
  .nav-toggle { display: block; }
  .main-nav { position: fixed; left: 14px; right: 14px; top: 68px; padding: 20px; background: rgba(17,22,31,.98); border: 1px solid var(--line); border-radius: 18px; flex-direction: column; align-items: stretch; gap: 8px; transform: translateY(-12px); opacity: 0; pointer-events: none; transition: .22s ease; box-shadow: var(--shadow); }
  .main-nav.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .main-nav a { padding: 10px; }
  .hero { padding-top: 56px; }
  .hero h1 { font-size: clamp(3rem, 14vw, 4.5rem); }
  .hero-trust { grid-template-columns: 1fr; }
  .product-stage { height: 570px; }
  .phone-main { width: 325px; right: 0; }
  .phone-tempo { width: 240px; left: 0; }
  .floating-card-a { left: 0; top: 70px; min-width: 178px; }
  .floating-card-b { right: 0; bottom: 45px; min-width: 182px; }
  .availability-strip { align-items: flex-start; padding-block: 16px; flex-wrap: wrap; }
  .availability-strip p { min-width: calc(100% - 25px); }
  .feature-grid, .version-grid, .support-grid { grid-template-columns: 1fr; }
  .version-grid .version-card:last-child { grid-column: auto; }
  .version-card { min-height: unset; }
  .version-card > p:not(.version-kicker) { min-height: unset; }
  .screen-mosaic { min-height: 610px; }
  .mosaic-loop { width: 290px; }
  .mosaic-chords { width: 270px; }
  .mosaic-tempo { width: 260px; right: 15px; }
  .premium-features { grid-template-columns: 1fr; }
  .developer-callout, .final-cta-box { flex-direction: column; align-items: stretch; }
  .developer-callout { display: flex; }
  .final-cta-box { display: flex; text-align: center; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: span 2; }
  .footer-osvaldt { grid-column: auto; }
  .footer-bottom { flex-direction: column; gap: 8px; }
  .download-row { grid-template-columns: auto 1fr; }
  .download-row .button { grid-column: span 2; }
}
@media (max-width: 480px) {
  .product-stage { height: 520px; }
  .phone-main { width: 280px; }
  .phone-tempo { width: 210px; bottom: 10px; }
  .floating-card { transform: scale(.88); transform-origin: left center; }
  .floating-card-b { transform-origin: right center; }
  .screen-mosaic { min-height: 530px; }
  .mosaic-loop { width: 250px; }
  .mosaic-chords { width: 230px; }
  .mosaic-tempo { width: 220px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-brand { grid-column: auto; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}