:root{
  --cream:#f7f3ec; --sand:#ece5d8; --rule:#e3dccf; --ink:#1d2230; --ink-2:#252b3b; --ink-line:#363d52; --ink-line-2:#4a5166;
  --muted:#565c6c; --muted-dark:#8e94a6; --body-dark:#c9ccd6; --copper:#b4552c; --copper-dark:#8a3d1c; --copper-light:#d9885f; --copper-pale:#e8a47f;
  --serif:'Instrument Serif',serif; --sans:'Instrument Sans',sans-serif; --mono:'JetBrains Mono',monospace;
}
*{box-sizing:border-box}
body{margin:0;background:var(--cream);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased}
a{color:var(--copper);text-decoration:none}
a:hover{color:var(--copper-dark)}
em{font-style:italic}
p{text-wrap:pretty}

.wrap{max-width:1240px;margin:0 auto;padding-left:32px;padding-right:32px}
.wrap-narrow{max-width:1000px;margin:0 auto;padding:110px 32px;text-align:center}
.pad-lg{padding-top:120px;padding-bottom:120px}
.pad-md{padding-top:96px;padding-bottom:96px}
.mb-56{margin-bottom:56px!important}
.two-col{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,400px),1fr));gap:64px;align-items:start}
.align-center{align-items:center}
.dark{background:var(--ink);color:var(--cream)}
.sand{background:var(--sand)}
.copper{background:var(--copper);color:#fbf6ee}
.rule-bottom{border-bottom:1px solid var(--rule)}
.muted{color:#7d7564}
.right{text-align:right}

/* Header */
.site-header{position:sticky;top:0;z-index:10;background:rgba(247,243,236,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--rule)}
.header-inner{padding-top:16px;padding-bottom:16px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.logo{display:flex;align-items:baseline;gap:8px;color:var(--ink)}
.logo-top{font-size:12px;letter-spacing:.18em;text-transform:uppercase;font-weight:600}
.logo-main{font-family:var(--serif);font-size:26px;font-style:italic;line-height:1}
.light{color:var(--cream)}
.nav{display:flex;align-items:center;gap:28px;flex-wrap:wrap;font-size:15px}
.nav a{color:var(--ink)}
.nav-actions{display:flex;gap:10px;align-items:center}
.nav-login{padding:10px 14px}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 24px;border-radius:2px;font-weight:500;font-size:16px;transition:background .15s,color .15s,border-color .15s}
.btn-lg{padding:18px 32px;font-size:17px;font-weight:600}
.btn-row{display:flex;gap:14px;flex-wrap:wrap}
.nav .btn-ink,.btn-ink{background:var(--ink);color:var(--cream)}
.btn-ink:hover{background:var(--copper);color:var(--cream)}
.copper .btn-ink:hover{background:#fbf6ee;color:var(--ink)}
.btn-copper{background:var(--copper-light);color:var(--ink);font-weight:600}
.btn-copper:hover{background:var(--copper-pale);color:var(--ink)}
.btn-ghost-light{border:1px solid var(--ink-line-2);color:var(--cream)}
.btn-ghost-light:hover{border-color:var(--cream);color:var(--cream)}
.btn-outline{border:1px solid var(--ink);color:var(--ink);font-weight:400}
.btn-outline:hover{background:var(--ink);color:var(--cream)}
.play{width:0;height:0;border-left:9px solid currentColor;border-top:6px solid transparent;border-bottom:6px solid transparent}
.text-link{font-weight:600;font-size:16px;border-bottom:1px solid currentColor;padding-bottom:3px}

/* Type */
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--copper);margin-bottom:20px}
.eyebrow-light{color:var(--copper-light);margin-bottom:28px}
.h2{font-family:var(--serif);font-weight:400;font-size:clamp(38px,4.4vw,58px);line-height:1;margin:0 0 24px;text-wrap:balance}
.h2-sm{font-size:clamp(36px,4vw,52px);line-height:1.04;margin-bottom:22px}
.h3{font-family:var(--serif);font-weight:400;font-size:30px;margin:0 0 12px}
.lede{font-size:18px;line-height:1.6;color:var(--muted);max-width:680px;margin:0 auto 28px}
.lede-sm{font-size:17px;margin:0 0 32px;max-width:380px}
.mono-sm{font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:var(--muted-dark)}
.copper-light{color:var(--copper-pale)}

/* Hero */
.hero{padding-top:96px;padding-bottom:88px;display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,460px),1fr));gap:64px;align-items:center}
.hero-title{font-family:var(--serif);font-weight:400;font-size:clamp(44px,5.4vw,76px);line-height:.98;margin:0 0 28px;letter-spacing:-.01em;text-wrap:balance}
.hero-title em{color:var(--copper-pale)}
.hero-sub{font-size:19px;line-height:1.55;color:var(--body-dark);max-width:520px;margin:0 0 40px}
.chart{background:var(--ink-2);border:1px solid var(--ink-line);padding:28px;border-radius:3px}
.chart-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:20px}
.chart-title{font-family:var(--serif);font-size:26px;font-style:italic}
.chart-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-left:2px solid var(--ink-line-2)}
.bar{height:78px;border-right:1px solid var(--ink-line-2);border-bottom:1px solid var(--ink-line);padding:10px 12px;display:flex;flex-direction:column;justify-content:space-between;transition:background .25s}
.bar-chord{font-family:var(--serif);font-size:24px;color:var(--cream)}
.bar-line{font-family:var(--mono);font-size:10px;color:var(--muted-dark);letter-spacing:.06em}
.bar.is-on{background:var(--copper-light)}
.bar.is-on .bar-chord,.bar.is-on .bar-line{color:var(--ink)}
.chart-note{margin-top:18px;font-size:14px;color:var(--muted-dark);line-height:1.5}

/* Statement */
.statement-big{font-family:var(--serif);font-size:clamp(30px,3.6vw,46px);line-height:1.18;margin:0 0 32px;text-wrap:balance}
.statement-big em{color:var(--copper)}

/* Steps */
.section-head{display:flex;justify-content:space-between;align-items:end;gap:32px;flex-wrap:wrap;margin-bottom:56px}
.section-head .h2{margin:0;max-width:640px}
.section-head .lede{margin:0}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr));gap:1px;background:var(--rule);border:1px solid var(--rule)}
.step{background:var(--cream);padding:40px 36px 44px}
.step-n{font-family:var(--serif);font-style:italic;font-size:56px;color:var(--copper);line-height:1;margin-bottom:28px}
.step p{font-size:16px;line-height:1.6;color:var(--muted);margin:0}

/* Split */
.split{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,440px),1fr));align-items:center}
.split-img{min-height:560px;margin:0 -32px}
.split-copy{padding:80px 0 80px 72px}
.split-copy p{font-size:17px;line-height:1.65;color:#4a5061;margin:0 0 18px}
.split-copy .btn{margin-top:14px}
@media (max-width:900px){.split-copy{padding:56px 0}}

/* Placeholders — swap for <img> */
.ph{display:flex;align-items:flex-end;padding:20px}
.ph span{font-family:var(--mono);font-size:12px}
.ph-light{background:repeating-linear-gradient(135deg,#e1d8c7 0 12px,#e8e0d1 12px 24px)}
.ph-light span{color:#7d7564}
.ph-dark{background:repeating-linear-gradient(135deg,#252b3b 0 12px,#2b3244 12px 24px);border:1px solid var(--ink-line)}
.ph-dark span{color:var(--muted-dark)}
.ratio-16-11{aspect-ratio:16/11}

/* Curriculum */
.modules{border-top:1px solid var(--ink)}
.module{display:grid;grid-template-columns:64px minmax(0,1fr);gap:20px;padding:24px 0;border-bottom:1px solid var(--rule)}
.module:hover{background:#efe9de}
.module-n{font-family:var(--serif);font-style:italic;font-size:30px;color:var(--copper);line-height:1}
.module-title{font-family:var(--serif);font-size:26px;line-height:1.1;margin-bottom:6px}
.module-body{font-size:15px;line-height:1.55;color:var(--muted)}

/* Dark feature */
.dark-body{font-size:17px;line-height:1.65;color:var(--body-dark);margin:0 0 28px}
.perks{list-style:none;padding:0;margin:0 0 36px;display:flex;flex-direction:column;gap:14px}
.perks li{display:flex;gap:14px;align-items:baseline;font-size:16px;color:#e6e7ec}
.perks li::before{content:"";width:7px;height:7px;background:var(--copper-light);transform:rotate(45deg);flex:none}

/* Teachers */
#teachers p{font-size:17px;line-height:1.65;color:#4a5061;margin:0 0 32px}
.roster{background:var(--cream);border:1px solid #d9d0bf;padding:28px}
.roster-title{font-family:var(--serif);font-size:24px}
.roster-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;align-items:center;padding:10px 0;border-top:1px solid var(--rule);font-size:15px}
.track{height:6px;background:var(--rule)}
.fill{height:6px;background:var(--copper)}

/* CTA */
.cta-title{font-family:var(--serif);font-weight:400;font-size:clamp(44px,6vw,80px);line-height:1;margin:0 0 20px}
.cta p{font-size:19px;line-height:1.55;margin:0 auto 40px;max-width:560px}

/* Footer */
.footer{background:var(--ink);color:var(--body-dark)}
.footer-grid{padding-top:64px;padding-bottom:40px;display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:40px;font-size:15px}
.footer-col{display:flex;flex-direction:column;gap:10px}
.footer-col a{color:var(--body-dark)}
.footer-col a:hover{color:var(--cream)}
.footer-base{padding-top:20px;padding-bottom:32px;border-top:1px solid var(--ink-line);font-size:13px;color:var(--muted-dark)}

/* Hero piano */
.piano{position:relative;display:flex;height:96px;margin-bottom:20px}
.key-white{flex:1;background:#efe9de;border:1px solid var(--ink-line);border-radius:0 0 3px 3px;transition:background .2s}
.key-black{position:absolute;top:0;width:6%;height:58%;background:#0f131c;border-radius:0 0 2px 2px;z-index:1;transition:background .2s}
.piano .is-on{background:var(--copper-light)}

/* Circle of Fourths */
.plain{font-size:17px;line-height:1.65;color:#4a5061;margin:0 0 18px}
.circle{list-style:none;margin:0 auto;padding:0;position:relative;width:min(100%,420px);aspect-ratio:1;border:1px solid #d9d0bf;border-radius:50%}
.circle li{position:absolute;left:50%;top:50%;width:64px;height:64px;margin:-32px;display:flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-size:30px;background:var(--cream);border:1px solid #d9d0bf;border-radius:50%;
  transform:rotate(calc(var(--i) * 30deg)) translateY(calc(-1 * min(42vw, 180px))) rotate(calc(var(--i) * -30deg))}
.circle li:first-child{background:var(--copper);color:#fbf6ee;border-color:var(--copper)}
.circle .circle-center{transform:none;width:auto;height:auto;margin:0;translate:-50% -50%;border:0;background:none;font-style:italic;color:var(--copper);font-size:28px}

/* Why piano */
.rule-top{border-top:1px solid var(--rule)}
.ladder{display:flex;flex-direction:column;justify-content:center;gap:24px;padding:64px 32px;background:var(--sand)}
.ladder-row{display:flex;align-items:baseline;justify-content:space-between;gap:16px;border-bottom:1px solid #d9d0bf;padding-bottom:14px}
.ladder-notes{font-family:var(--serif);font-size:clamp(36px,4vw,52px)}
.ladder-name{font-family:var(--mono);font-size:12px;letter-spacing:.08em;color:var(--copper);text-transform:uppercase}

/* Curriculum groups */
.module-group{font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--copper);margin:32px 0 10px}
.module-group:first-child{margin-top:0}
.modules.is-destination .module{opacity:.6}

/* Pass-offs */
.dark-body strong{color:var(--cream)}
.flow{margin:0;padding-left:22px;display:flex;flex-direction:column;gap:10px;color:#e6e7ec;font-size:16px}
.flow li::marker{font-family:var(--mono);color:var(--copper-light)}
.stats{margin:0}
.stats div{display:flex;justify-content:space-between;gap:16px;padding:14px 0;border-top:1px solid var(--ink-line)}
.stats dt{color:var(--muted-dark);font-size:15px}
.stats dd{margin:0;font-family:var(--serif);font-size:24px}

/* Built for students */
.perks-light li{color:var(--ink)}
.perks-light li::before{background:var(--copper)}

/* Teachers roster */
.roster-head{border-top:0}
.passed{color:var(--copper);font-weight:600}
.center{justify-content:center}
.copper .btn-outline{border-color:#fbf6ee;color:#fbf6ee}
.copper .btn-outline:hover{background:#fbf6ee;color:var(--ink)}

/* Why piano: shape comparison */
.shapes{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 24px}
.shape .ladder-notes{display:block;margin-bottom:10px;font-size:clamp(28px,3vw,38px)}
.piano-mini{height:56px;margin:0}
.piano-mini .key-white{border-color:#cfc5b2}
.piano-mini .key-black{width:4%}
.piano-mini .is-lit{background:var(--copper)}

/* Accidentals: pull ♭/♯ left so they sit against the note letter */
.acc{margin-right:-.04em}
.acc-flat{margin-left:-.3em}
.acc-sharp{margin-left:-.12em}
.shape .ladder-name{display:block;margin:-4px 0 10px}
.acc-tight{margin-right:-.2em}
.chart-grid[hidden]{display:none}
.how-coda{font-family:var(--serif);font-size:clamp(24px,2.4vw,32px);line-height:1.25;max-width:820px;margin:56px 0 0;text-wrap:balance}
.how-coda em{color:var(--copper)}

/* Hero: keyboard requirement and sign-in note under the buttons */
.hero-note{margin:24px 0 0;font-size:14px;line-height:1.6;color:var(--muted-dark)}
.hero-note a,.chart-note a{color:var(--copper-light);border-bottom:1px solid currentColor}
.hero-note a:hover,.chart-note a:hover{color:var(--copper-pale)}
.chart-note{margin-bottom:0}

/* Sign-in links that sit under a primary action */
.secondary-links{margin:18px 0 0;font-size:15px;color:var(--muted)}
.secondary-links a{border-bottom:1px solid currentColor}
.cta .secondary-links{margin:24px 0 0;font-size:16px;color:#fbf6ee}
.cta .secondary-links a{color:#fbf6ee}
#teachers .secondary-links{margin:18px 0 0;font-size:15px}
.product-preview{display:block;width:100%;height:auto;margin:8px 0 40px;border-radius:14px;box-shadow:0 24px 60px -28px rgba(29,34,48,.35)}
.module-note{font-size:14px;line-height:1.5;color:var(--muted);margin:-4px 0 12px}