:root{--ink:#173d47;--teal:#095360;--accent:#1b9fb8;--pale:#edf6f7;--line:#d3e4e7;--muted:#526b72;--app:#205466}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;color:var(--ink);background:#fff;font-family:Catamaran,Arial,sans-serif;font-size:18px;line-height:1.55}a{color:#00677c;text-underline-offset:4px}a:hover{color:#004756}a:focus-visible,summary:focus-visible,iframe:focus-visible{outline:3px solid #d17a00;outline-offset:5px}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.15}h1{font-size:clamp(32px,4vw,46px);font-weight:600;letter-spacing:-.6px;margin-bottom:8px}h2{font-size:32px;font-weight:500;margin-bottom:18px}h3{font-size:25px;font-weight:600;margin-bottom:12px}p{margin-bottom:18px}.page-width{width:min(1240px,calc(100% - 64px));margin-inline:auto}.reading-width{width:min(820px,calc(100% - 64px));margin-inline:auto}.site-header{background:var(--teal);color:white}.header-inner{width:min(1240px,calc(100% - 64px));margin:auto;min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;flex-shrink:0}.brand img{display:block;width:135px;height:auto}.site-header nav{display:flex;gap:30px}.site-header nav a{color:#fff;text-decoration:none;font-size:14px;font-weight:700;letter-spacing:1px;text-transform:uppercase}.site-header nav a:hover{text-decoration:underline}.skip-link{position:absolute;left:12px;top:-100px;padding:10px 20px;z-index:5;background:#fff}.skip-link:focus{top:12px}.eyebrow{font-size:12px;font-weight:700;letter-spacing:1.8px;text-transform:uppercase;color:#287386;margin-bottom:12px}.practice{background:var(--pale);padding:30px 0 35px}.intro{margin-bottom:22px}.intro .eyebrow{margin-bottom:5px}.intro>p:last-child{color:var(--muted);margin-bottom:0;font-size:19px}.practice-layout{display:grid;grid-template-columns:minmax(0,1fr) 265px;gap:32px;align-items:start}.instrument{min-width:0}.instrument-bar{background:var(--teal);color:#fff;display:flex;justify-content:space-between;align-items:center;gap:12px;padding:10px 18px;font-size:15px}.instrument-bar>span{font-weight:600}.instrument-bar a{font-size:14px;color:#fff}.app-shell{height:680px;position:relative;background:var(--app)}iframe{width:100%;height:100%;border:0;display:block}.app-status{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;background:var(--app);color:#fff;text-align:center;padding:24px;gap:14px}.app-status[hidden]{display:none}.app-status p{margin:0}.app-status a{color:#fff}.loader{width:30px;height:30px;border:3px solid #ffffff50;border-top-color:white;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.sound-note{font-size:14px;color:var(--muted);margin:10px 0 0}.practice-aside{padding-top:12px}.practice-aside h2{font-size:26px;line-height:1.2}.aside-guide ol{padding-left:23px;margin:20px 0 24px}.aside-guide li{padding-left:5px;margin-bottom:17px;font-size:17px;line-height:1.5}.aside-guide strong{font-weight:700}.text-link{font-size:16px;font-weight:600;display:inline-block}.aside-downloads{border-top:1px solid #bfd8de;margin-top:28px;padding-top:24px}.aside-downloads h2{font-size:20px;margin-bottom:8px}.aside-downloads p{font-size:16px;line-height:1.4}.store-badges{display:flex;align-items:center;flex-wrap:wrap;gap:12px}.store-badges a{display:inline-flex}.store-badges img{display:block;width:135px;height:40px;object-fit:contain}.guide{padding-block:72px}.section-heading{max-width:740px;margin-bottom:35px}.section-heading>p:last-child{color:var(--muted);margin-bottom:0}.guide-columns{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:38px}.guide-columns p{font-size:17px;color:var(--muted)}.step-number{display:block;color:#388291;font-size:14px;font-weight:600;margin-bottom:12px}.practice-tip{padding:23px 28px;background:var(--pale);border-left:3px solid var(--accent);margin-top:24px;font-size:17px}.questions{background:#f6f8f8;padding:60px 0}.questions h2{margin-bottom:28px}details{border-top:1px solid var(--line);padding:18px 0}details:last-child{border-bottom:1px solid var(--line)}summary{cursor:pointer;font-weight:600;font-size:20px;padding-right:8px}details p{font-size:17px;color:var(--muted);margin:15px 0 3px;padding-right:22px}.mobile-section{display:grid;grid-template-columns:1fr 1fr;gap:65px;align-items:center;padding-block:60px}.mobile-section h2{max-width:460px}.mobile-section p:not(.eyebrow){color:var(--muted)}.mobile-section .text-link{margin-top:22px}.mobile-art{width:100%;height:auto;display:block}.site-footer{background:var(--teal);color:#fff;padding:30px 0}.footer-inner{display:flex;justify-content:space-between;align-items:center;gap:25px}.site-footer a{color:#fff;font-size:16px}.footer-inner>div>a{font-size:20px;font-weight:600;text-decoration:none}.site-footer p{font-size:14px;color:#c5dfe3;margin:5px 0 0}.site-footer nav{display:flex;gap:22px;flex-wrap:wrap}.site-footer small{font-size:13px;color:#c5dfe3;white-space:nowrap}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.noscript-note{padding:12px;background:#fff1d8}@media(min-width:1450px){.app-shell{height:680px}}@media(max-width:1000px){.practice-layout{grid-template-columns:minmax(0,1fr)}.practice-aside{display:grid;grid-template-columns:1fr 1fr;gap:38px;padding-top:8px}.aside-downloads{margin:0;border-top:0;border-left:1px solid #bfd8de;padding:0 0 0 28px}.aside-guide h2{font-size:24px}.aside-guide ol{margin:15px 0}.aside-guide li{margin-bottom:10px}.guide-columns{gap:25px}.footer-inner{flex-wrap:wrap}.mobile-section{gap:30px}}@media(max-width:600px){body{font-size:17px}.page-width,.reading-width,.header-inner{width:calc(100% - 32px)}.header-inner{min-height:66px;gap:12px;flex-wrap:wrap;padding-block:12px}.brand img{width:104px}.site-header nav{gap:14px}.site-header nav a{font-size:10px;letter-spacing:.4px}.practice{padding:24px 0}.intro{margin-bottom:18px}.intro .eyebrow{font-size:10px}.intro>p:last-child{font-size:17px}h1{font-size:32px}h2{font-size:28px}.instrument-bar{padding:10px 12px;font-size:13px}.instrument-bar a{font-size:12px}.app-shell{height:680px}.sound-note{font-size:13px}.practice-layout{gap:25px}.practice-aside{grid-template-columns:1fr;gap:24px}.aside-guide{display:none}.aside-downloads{padding:0;border:0}.aside-downloads h2{font-size:22px}.aside-downloads p{margin-bottom:12px}.guide{padding-block:44px}.section-heading{margin-bottom:25px}.guide-columns{grid-template-columns:1fr;gap:16px}.step-number{float:left;margin-right:12px;line-height:29px}.guide-columns h3{font-size:23px}.guide-columns p{clear:both}.practice-tip{margin-top:10px;padding:18px}.questions{padding:42px 0}summary{font-size:18px}.mobile-section{grid-template-columns:1fr;padding-block:42px;gap:24px}.mobile-art{max-width:440px;margin:auto}.footer-inner{display:block}.site-footer nav{margin:20px 0;gap:20px}.site-footer a{font-size:15px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.loader{animation:none}}

/* Keep all metronome controls within reach on phones. */
@media(max-width:600px){.app-shell{height:580px}.intro .eyebrow{display:none}.practice{padding-top:18px}.intro{margin-bottom:14px}}
.app-status button{font:inherit;font-weight:600;padding:9px 20px;border:2px solid white;border-radius:4px;background:white;color:var(--teal);cursor:pointer}.app-status button:focus-visible{outline:3px solid #ffbd59;outline-offset:4px}.app-status button[hidden],.loader[hidden]{display:none}