:root {
  color-scheme: dark;
  --ink: #f6f8f2;
  --muted: #9ca5b7;
  --lime: #baff3f;
  --lime-deep: #8ad51b;
  --cyan: #59d9ff;
  --orange: #ffb24d;
  --red: #ff6680;
  --base: #090b0f;
  --panel: #111722;
  --panel-2: #171d2a;
  --line: #293244;
  --radius: 24px;
  --shadow: 0 28px 80px rgba(0,0,0,.38);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: var(--base); color: var(--ink); line-height: 1.55; }
body::before { content: ""; position: fixed; inset: 0; z-index: -1; opacity: .22; pointer-events: none; background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px); background-size: 44px 44px; mask-image: linear-gradient(to bottom, #000, transparent 85%); }
a { color: inherit; }
img, svg { display: block; }
button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
.site-skip { position: fixed; z-index: 1000; top: -80px; left: 16px; padding: 12px 18px; border-radius: 12px; background: var(--lime); color: #09100a; font-weight: 800; }
.site-skip:focus { top: 12px; }
.site-header { position: sticky; z-index: 100; top: 0; border-bottom: 1px solid rgba(255,255,255,.08); background: rgba(9,11,15,.88); backdrop-filter: blur(18px); }
.site-header-inner, .site-section, .proof-strip, .site-footer { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.site-header-inner { min-height: 82px; display: flex; align-items: center; gap: 30px; }
.site-brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; font-size: 23px; font-weight: 850; letter-spacing: -.04em; white-space: nowrap; }
.site-brand > span > span { color: var(--lime); }
.site-brand small { color: var(--muted); font-size: 10px; text-transform: uppercase; letter-spacing: .16em; }
.site-nav { display: flex; align-items: center; gap: 8px; margin: 0 auto; }
.site-nav a { padding: 10px 14px; border-radius: 12px; color: var(--muted); text-decoration: none; font-size: 14px; font-weight: 700; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--ink); background: rgba(255,255,255,.06); }
.site-actions { display: flex; align-items: center; gap: 10px; }
.button { display: inline-flex; min-height: 45px; align-items: center; justify-content: center; gap: 9px; padding: 0 18px; border: 1px solid transparent; border-radius: 13px; cursor: pointer; text-decoration: none; font-weight: 800; transition: transform .18s ease, border-color .18s ease, background .18s ease; }
.button:hover { transform: translateY(-1px); }
.button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, summary:focus-visible, a:focus-visible { outline: 3px solid rgba(186,255,63,.35); outline-offset: 3px; }
.button-primary { color: #0a1108; background: linear-gradient(135deg, #ceff5c, var(--lime)); box-shadow: 0 12px 32px rgba(145,218,31,.18); }
.button-ghost { color: var(--ink); border-color: var(--line); background: rgba(255,255,255,.025); }
.button-secondary { color: var(--ink); border-color: #394358; background: #202737; }
.button-danger { color: white; border-color: rgba(255,102,128,.45); background: rgba(255,102,128,.16); }
.button:disabled { cursor: not-allowed; opacity: .45; transform: none; }
.button-large { min-height: 54px; padding-inline: 23px; }
.button-wide { width: 100%; }
.nav-toggle { display: none; width: 44px; height: 44px; padding: 11px; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); }
.nav-toggle span { display: block; height: 2px; margin: 5px 0; background: var(--ink); }
.eyebrow { display: block; color: var(--lime); font-size: 12px; font-weight: 900; text-transform: uppercase; letter-spacing: .17em; }
.hero { min-height: 710px; display: grid; grid-template-columns: .92fr 1.08fr; align-items: center; gap: 70px; padding-block: 90px; }
.hero-copy h1 { max-width: 700px; margin: 18px 0 22px; font-size: clamp(48px, 6.1vw, 84px); line-height: .98; letter-spacing: -.065em; }
.hero-copy > p { max-width: 650px; margin: 0; color: #b7bfce; font-size: 19px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.trust-row { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 31px; color: var(--muted); font-size: 13px; font-weight: 650; }
.trust-row i { display: inline-grid; width: 20px; height: 20px; place-items: center; margin-right: 5px; border-radius: 50%; color: #0c1608; background: var(--lime); font-style: normal; }
.hero-demo { overflow: hidden; min-width: 0; border: 1px solid #2d3648; border-radius: 28px; background: linear-gradient(145deg, rgba(22,29,42,.96), rgba(10,13,19,.98)); box-shadow: var(--shadow); transform: perspective(1200px) rotateY(-4deg) rotateX(2deg); }
.demo-top, .demo-score { display: flex; justify-content: space-between; align-items: center; padding: 17px 20px; color: var(--muted); font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.demo-top span { display: flex; align-items: center; gap: 8px; }
.demo-top i { width: 8px; height: 8px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 14px var(--lime); }
.demo-highway { position: relative; height: 420px; overflow: hidden; border-block: 1px solid #252d3d; background: radial-gradient(circle at 70% 50%, rgba(89,217,255,.08), transparent 32%), #0c1018; }
.demo-string { position: absolute; left: 0; right: 0; height: 1px; background: #566176; }
.demo-string:nth-child(1) { top: 12%; }.demo-string:nth-child(2) { top: 27%; }.demo-string:nth-child(3) { top: 42%; }.demo-string:nth-child(4) { top: 57%; }.demo-string:nth-child(5) { top: 72%; }.demo-string:nth-child(6) { top: 87%; }
.demo-playhead { position: absolute; z-index: 2; top: 0; bottom: 0; left: 34%; width: 4px; background: var(--lime); box-shadow: 0 0 20px rgba(186,255,63,.7); }
.demo-chord { position: absolute; z-index: 3; top: 7%; display: grid; width: 100px; height: 86%; grid-template-rows: repeat(6,1fr); gap: 8px; }
.demo-chord b { position: absolute; top: -27px; left: 0; right: 0; text-align: center; color: inherit; }
.demo-chord span { display: grid; place-items: center; border-radius: 999px; color: #0c1014; font-size: 13px; font-weight: 900; }
.demo-em { left: 28%; color: var(--lime); }.demo-em span { background: var(--lime); }
.demo-g { left: 75%; color: var(--cyan); }.demo-g span { background: var(--cyan); }
.demo-score { text-transform: none; letter-spacing: 0; }
.demo-score > span { display: grid; }.demo-score b { color: var(--lime); font-size: 16px; }.demo-score small { font-size: 12px; }
.demo-score > strong { color: var(--lime); font-size: 22px; }
.proof-strip { display: grid; grid-template-columns: repeat(4, 1fr); margin-bottom: 100px; overflow: hidden; border: 1px solid var(--line); border-radius: 20px; background: rgba(18,23,34,.8); }
.proof-strip div { display: grid; grid-template-columns: auto 1fr; align-items: center; gap: 12px; padding: 22px 26px; border-right: 1px solid var(--line); }
.proof-strip div:last-child { border: 0; }.proof-strip strong { color: var(--lime); font-size: 26px; }.proof-strip span { color: var(--muted); font-size: 12px; line-height: 1.2; }
.site-section { padding-block: 105px; }
.section-heading { max-width: 760px; margin-bottom: 50px; }.section-heading h2, .split-copy h2, .tuner-callout h2, .final-cta h2 { margin: 13px 0 18px; font-size: clamp(38px, 5vw, 62px); line-height: 1.02; letter-spacing: -.055em; }.section-heading p, .split-copy > p, .tuner-callout p { color: var(--muted); font-size: 18px; }
.story-section { border-top: 1px solid rgba(255,255,255,.06); }
.path-layout { display: grid; grid-template-columns: 1.1fr .9fr; gap: 28px; }
.learning-path { display: grid; gap: 13px; margin: 0; padding: 0; list-style: none; }
.learning-path li { display: grid; grid-template-columns: 58px 1fr; gap: 20px; padding: 22px; border: 1px solid var(--line); border-radius: 18px; background: var(--panel); }
.learning-path li > span { display: grid; width: 52px; height: 52px; place-items: center; border: 2px solid #394356; border-radius: 16px; color: var(--muted); font-size: 18px; font-weight: 900; }
.learning-path li.is-complete > span { color: #10170a; border-color: var(--lime); background: var(--lime); }.learning-path li.is-active { border-color: rgba(186,255,63,.55); box-shadow: inset 4px 0 var(--lime); }
.learning-path small { color: var(--lime); text-transform: uppercase; letter-spacing: .12em; }.learning-path strong { display: block; margin-top: 3px; font-size: 21px; }.learning-path p { margin: 3px 0 0; color: var(--muted); }
.feedback-card { min-height: 100%; display: flex; flex-direction: column; justify-content: center; padding: clamp(28px,5vw,55px); border: 1px solid #303a4d; border-radius: 24px; background: radial-gradient(circle at 50% 35%, rgba(186,255,63,.1), transparent 43%), var(--panel); }
.feedback-kicker { color: var(--lime); font-size: 12px; font-weight: 900; text-transform: uppercase; letter-spacing: .14em; }.feedback-card h3 { margin: 14px 0 32px; font-size: 32px; line-height: 1.08; }.feedback-card > strong { margin-top: 24px; color: var(--red); font-size: 20px; }.feedback-card > p { color: var(--muted); }
.mini-chord { display: grid; grid-template-columns: repeat(6,1fr); gap: 8px; padding: 20px 10px; border-block: 1px solid #344055; }.mini-chord span { display: grid; aspect-ratio: 1; place-items: center; border-radius: 50%; border: 2px solid #475166; color: var(--muted); font-weight: 900; }.mini-chord .good { border-color: var(--lime); color: #0b1208; background: var(--lime); }.mini-chord .check { border-color: var(--red); color: var(--red); }.mini-chord .mute { opacity: .35; }
.split-section { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 75px; }.split-visual { min-height: 540px; padding: 45px; border: 1px solid var(--line); border-radius: 28px; background: linear-gradient(140deg, #171e2b, #0e131d); box-shadow: var(--shadow); }.split-visual h3 { max-width: 500px; margin: 15px 0 40px; font-size: 48px; line-height: 1; letter-spacing: -.05em; }
.album-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }.album-grid i { aspect-ratio: 1.2; display: flex; flex-direction: column; justify-content: flex-end; padding: 20px; border-radius: 16px; background: linear-gradient(145deg, rgba(186,255,63,.24), #182131); font-style: normal; }.album-grid i:nth-child(2) { background: linear-gradient(145deg, rgba(89,217,255,.3), #182131); }.album-grid i:nth-child(3) { background: linear-gradient(145deg, rgba(255,178,77,.3), #182131); }.album-grid i:nth-child(4) { background: #202737; }.album-grid b { font-size: 26px; }.album-grid small { color: #c3cad5; }
.feature-list { display: grid; gap: 19px; margin: 32px 0 0; padding: 0; list-style: none; }.feature-list li { display: grid; grid-template-columns: 42px 1fr; gap: 15px; }.feature-list i { color: var(--lime); font-style: normal; font-weight: 900; }.feature-list span { color: var(--muted); }.feature-list strong { display: block; color: var(--ink); }
.tuner-callout { display: grid; grid-template-columns: 1fr 280px; align-items: center; gap: 60px; padding-inline: 55px; border: 1px solid rgba(186,255,63,.26); border-radius: 28px; background: linear-gradient(110deg, rgba(186,255,63,.11), rgba(17,23,34,.95) 55%); }.tuner-callout > div:first-child { padding-block: 55px; }.tuner-callout h2 { max-width: 720px; }.tuner-orb { display: grid; width: 230px; height: 230px; place-content: center; justify-items: center; border: 1px solid rgba(186,255,63,.4); border-radius: 50%; background: radial-gradient(circle, rgba(186,255,63,.16), rgba(8,12,15,.9)); box-shadow: 0 0 60px rgba(186,255,63,.08); }.tuner-orb span { color: var(--muted); font-size: 11px; letter-spacing: .18em; }.tuner-orb strong { color: var(--lime); font-size: 80px; line-height: 1; }.tuner-orb small { color: var(--lime); font-weight: 800; }
.membership-section .section-heading { margin-inline: auto; text-align: center; }.plan-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 20px; }.marketing-plans article { padding: 38px; border: 1px solid var(--line); border-radius: 22px; background: var(--panel); }.marketing-plans article > span { color: var(--lime); font-weight: 850; text-transform: uppercase; letter-spacing: .12em; }.marketing-plans h3 { margin: 14px 0; font-size: 32px; }.marketing-plans p, .marketing-plans li { color: var(--muted); }.marketing-plans ul { display: grid; gap: 9px; padding-left: 20px; }.marketing-plans .featured-plan { border-color: rgba(186,255,63,.5); background: linear-gradient(150deg, rgba(186,255,63,.1), var(--panel) 45%); }
.adult-note { max-width: 780px; display: grid; grid-template-columns: 75px 1fr; gap: 22px; align-items: center; margin: 28px auto 0; padding: 22px; border-radius: 18px; background: rgba(255,255,255,.035); }.adult-note > span { display: grid; width: 70px; height: 70px; place-items: center; border-radius: 50%; color: var(--lime); border: 1px solid rgba(186,255,63,.4); font-weight: 900; }.adult-note strong { font-size: 18px; }.adult-note p { margin: 3px 0 0; color: var(--muted); }
.final-cta { padding: 115px 24px; text-align: center; border-top: 1px solid rgba(255,255,255,.07); background: radial-gradient(circle at 50% 100%, rgba(186,255,63,.13), transparent 45%); }.final-cta h2 { max-width: 850px; margin-inline: auto; }.final-cta > div { display: flex; justify-content: center; gap: 12px; }
.site-footer { display: grid; grid-template-columns: 1fr auto; gap: 25px; padding-block: 45px; border-top: 1px solid rgba(255,255,255,.08); color: var(--muted); }.site-footer p { margin: 8px 0 0; }.site-footer nav { display: flex; align-items: center; flex-wrap: wrap; justify-content: flex-end; gap: 17px; }.site-footer nav a { text-decoration: none; }.site-footer nav a:hover { color: var(--ink); }.site-footer > small { grid-column: 1/-1; }
.site-notice { padding: 14px 20px; text-align: center; color: var(--lime); border-bottom: 1px solid rgba(186,255,63,.25); background: rgba(186,255,63,.08); }
.auth-shell { min-height: calc(100vh - 82px); display: grid; place-items: center; padding: 55px 20px; background: radial-gradient(circle at 50% 20%, rgba(186,255,63,.08), transparent 35%); }.auth-card { width: min(520px, 100%); padding: clamp(26px,5vw,46px); border: 1px solid var(--line); border-radius: 24px; background: rgba(17,23,34,.96); box-shadow: var(--shadow); }.auth-shell-wide .auth-card { width: min(720px,100%); }.auth-intro h1 { margin: 10px 0; font-size: 42px; line-height: 1.06; letter-spacing: -.045em; }.auth-intro p { margin: 0 0 28px; color: var(--muted); }
.form-stack { display: grid; gap: 17px; }.form-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 15px; }.form-stack label, .inline-form label { display: grid; gap: 7px; color: #d9deea; font-size: 13px; font-weight: 750; }.form-stack label small { color: var(--muted); font-weight: 500; }.form-stack input:not([type="checkbox"]), .form-stack select, .form-stack textarea, .inline-form input, .inline-form select, .inline-search input { width: 100%; min-height: 49px; padding: 10px 13px; border: 1px solid #364156; border-radius: 12px; color: var(--ink); background: #0d121b; }.form-stack textarea { resize: vertical; }.check-row { grid-template-columns: 21px 1fr !important; align-items: start; font-weight: 500 !important; }.check-row input { width: 18px; height: 18px; margin-top: 2px; accent-color: var(--lime); }.check-row a { color: var(--lime); }.form-error, .flash-message { padding: 13px 15px; margin-bottom: 18px; border: 1px solid rgba(255,102,128,.35); border-radius: 12px; color: #ffc4ce; background: rgba(255,102,128,.1); }.flash-success { color: var(--lime); border-color: rgba(186,255,63,.35); background: rgba(186,255,63,.08); }.flash-warning, .flash-info { color: #ffd399; border-color: rgba(255,178,77,.35); background: rgba(255,178,77,.08); }.auth-links { display: flex; flex-direction: column; gap: 8px; margin-top: 23px; color: var(--muted); font-size: 14px; }.auth-links a { color: var(--lime); font-weight: 700; }
.legal-shell { width: min(1160px,calc(100% - 40px)); display: grid; grid-template-columns: 245px minmax(0,1fr); gap: 60px; margin: 0 auto; padding-block: 75px 110px; }.legal-nav { position: sticky; top: 115px; height: fit-content; display: grid; gap: 5px; }.legal-nav .eyebrow { margin: 0 12px 13px; }.legal-nav a { padding: 10px 12px; border-radius: 10px; color: var(--muted); text-decoration: none; font-size: 13px; font-weight: 700; }.legal-nav a:hover, .legal-nav a[aria-current="page"] { color: var(--ink); background: #171e29; }.legal-heading { padding-bottom: 35px; border-bottom: 1px solid var(--line); }.legal-heading h1 { margin: 12px 0; font-size: clamp(45px,6vw,72px); line-height: 1; letter-spacing: -.055em; }.legal-heading p { max-width: 700px; color: var(--muted); font-size: 18px; }.legal-heading .button { margin-top: 13px; }.legal-copy { max-width: 800px; padding-top: 25px; }.legal-copy h2 { margin: 40px 0 10px; font-size: 24px; }.legal-copy p, .legal-copy li { color: #b2bac9; }.legal-copy li { margin-block: 8px; }.legal-copy a { color: var(--lime); }.legal-review-note { max-width: 800px; margin-top: 50px; padding: 20px; border: 1px solid rgba(255,178,77,.3); border-radius: 14px; background: rgba(255,178,77,.07); }.legal-review-note strong { color: var(--orange); }.legal-review-note p { margin: 5px 0 0; color: var(--muted); }
.sr-only { position: absolute !important; width: 1px !important; height: 1px !important; padding: 0 !important; margin: -1px !important; overflow: hidden !important; clip: rect(0,0,0,0) !important; white-space: nowrap !important; border: 0 !important; }
@media (max-width: 900px) {
  .site-header-inner { min-height: 70px; }.site-actions .button-ghost { display: none; }.nav-toggle { display: block; margin-left: auto; }.site-nav { display: none; }.site-header.nav-open .site-nav { position: absolute; top: 70px; left: 0; right: 0; display: grid; padding: 15px 20px 25px; border-bottom: 1px solid var(--line); background: #0b0e14; }.hero, .path-layout, .split-section { grid-template-columns: 1fr; }.hero { gap: 45px; padding-top: 65px; }.hero-demo { transform: none; }.proof-strip { grid-template-columns: 1fr 1fr; }.proof-strip div:nth-child(2) { border-right: 0; }.proof-strip div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }.split-visual { min-height: auto; }.tuner-callout { grid-template-columns: 1fr; }.tuner-orb { display: none; }.site-footer { grid-template-columns: 1fr; }.site-footer nav { justify-content: flex-start; }
}
@media (max-width: 900px) { .legal-shell { grid-template-columns: 1fr; gap: 30px; }.legal-nav { position: static; display: flex; overflow-x: auto; }.legal-nav .eyebrow { display: none; }.legal-nav a { min-width: max-content; } }
@media (max-width: 620px) {
  .site-header-inner, .site-section, .proof-strip, .site-footer { width: min(100% - 28px,1180px); }.site-actions .button { min-height: 40px; padding-inline: 13px; font-size: 13px; }.hero { min-height: auto; padding-block: 55px; }.hero-copy h1 { font-size: 49px; }.hero-copy > p { font-size: 16px; }.hero-actions .button { width: 100%; }.trust-row { display: grid; }.demo-highway { height: 320px; }.demo-chord { width: 72px; gap: 6px; }.proof-strip { margin-bottom: 40px; }.proof-strip div { grid-template-columns: 1fr; gap: 0; padding: 17px; }.site-section { padding-block: 70px; }.section-heading h2, .split-copy h2, .tuner-callout h2, .final-cta h2 { font-size: 39px; }.learning-path li { grid-template-columns: 46px 1fr; padding: 17px; }.learning-path li > span { width: 42px; height: 42px; }.feedback-card, .split-visual, .marketing-plans article { padding: 25px; }.split-section { gap: 42px; }.split-visual h3 { font-size: 38px; }.tuner-callout { padding-inline: 24px; }.plan-grid { grid-template-columns: 1fr; }.adult-note { grid-template-columns: 1fr; }.final-cta > div { flex-direction: column; }.form-grid { grid-template-columns: 1fr; }.auth-card { border-radius: 18px; }.auth-intro h1 { font-size: 36px; }
}