:root{color-scheme:dark;--bg:#101715;--panel:#18211d;--line:#344239;--ink:#f3f4eb;--muted:#b0bdb3;--accent:#ff9b45}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.7 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:inherit;text-underline-offset:4px}a:hover{color:var(--accent)}button,input,select{font:inherit}a,button,input,select,summary{touch-action:manipulation}:focus-visible{outline:3px solid var(--accent);outline-offset:5px}.site-header{max-width:1440px;margin:auto;display:flex;align-items:center;gap:30px;padding:24px 4%;border-bottom:1px solid var(--line)}.brand{text-decoration:none;font-size:25px;font-weight:800;letter-spacing:-1.2px;white-space:nowrap}.brand-dot{color:var(--muted);font-weight:450}.mark{color:var(--accent);margin-right:9px}.site-header nav{display:flex;gap:24px;flex:1;justify-content:center;font-size:14px}.site-header nav a{text-decoration:none}.button,button{display:inline-flex;align-items:center;justify-content:center;gap:22px;background:var(--accent);color:#29190e;border:1px solid var(--accent);border-radius:5px;padding:13px 23px;text-decoration:none;font-weight:700;cursor:pointer}.button:hover,button:hover{background:#ffb16c;color:#29190e}.small{font-size:14px;padding:10px 16px;white-space:nowrap}.outline{background:transparent;color:var(--ink);border-color:#677568}.wrap{max-width:1260px;margin:auto;padding:0 30px}.hero{padding:82px 0 64px;display:grid;grid-template-columns:1.3fr 1fr;gap:65px;align-items:center}.eyebrow{text-transform:uppercase;letter-spacing:.15em;font:600 12px/1.6 ui-monospace,monospace;color:var(--accent)}h1,h2,h3{line-height:1.12;letter-spacing:-.04em;margin:0 0 24px}h1{font-size:clamp(40px,5.5vw,78px);font-weight:730}.hero h1 em{font-style:normal;color:var(--accent)}h2{font-size:clamp(28px,3vw,40px)}h3{font-size:23px;letter-spacing:-.025em}p{margin:0 0 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var(--line);padding:24px;border-radius:5px}.aside h2{font-size:21px}.aside a{display:block;margin:14px 0;font-size:15px}.note{padding:20px 24px;border-left:3px solid var(--accent);background:var(--panel);margin:24px 0}.note p:last-child{margin-bottom:0}.calculator{max-width:850px;padding:30px;background:var(--panel);border:1px solid var(--line);border-radius:6px}.fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin:0 0 26px}label{display:flex;flex-direction:column;gap:8px;font-size:15px}input,select{width:100%;padding:11px 13px;border:1px solid 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0;background:transparent;color:var(--muted);border:0;font-weight:500}.back:hover{background:transparent;color:var(--accent)}.skip{position:absolute;left:20px;top:-80px;background:var(--accent);color:#29190e;padding:12px;z-index:100}.skip:focus{top:10px}footer{border-top:1px solid var(--line);max-width:1260px;margin:30px auto 0;padding:42px 30px;display:grid;grid-template-columns:1fr 1.5fr;gap:22px}footer p{font-size:14px;color:var(--muted);margin-top:10px}footer nav{display:flex;justify-content:flex-end;flex-wrap:wrap;gap:14px 22px;font-size:14px}footer nav a{text-decoration:none}.copyright{grid-column:1/-1;border-top:1px solid var(--line);padding-top:24px}.empty{padding:90px 0}.empty .code{font:100px/1 ui-monospace,monospace;color:var(--accent);margin-bottom:25px}@media(max-width:1100px){.site-header{flex-wrap:wrap;gap:16px}.site-header nav{order:3;width:100%;justify-content:flex-start;flex-wrap:wrap;gap:12px 24px}.site-header>.button{margin-left:auto}.hero{gap:35px}.article-layout{gap:30px;grid-template-columns:minmax(0,1fr) 230px}}@media(max-width:720px){body{font-size:16px}.wrap{padding:0 22px}.site-header{padding:19px 22px}.brand{font-size:23px}.site-header nav{font-size:14px;gap:10px 18px}.hero{grid-template-columns:1fr;padding:48px 0 40px;gap:30px}.hero h1{font-size:54px}.lead{font-size:17px}.signal{padding:20px}.signal img{max-height:180px;object-fit:cover}.section{padding:36px 0}.topics{grid-template-columns:1fr}.topic{padding:23px 0}.cards{grid-template-columns:1fr}.feature{grid-template-columns:1fr;padding:28px;gap:22px}.feature h2{font-size:35px}.section-top{align-items:flex-start}.section-top h2{font-size:28px}.article-layout{grid-template-columns:1fr}.fields{grid-template-columns:1fr}.calculator,.diagnosis{padding:22px}.choices{grid-template-columns:1fr}.page-head{padding-top:12px}.page-head h1{font-size:40px}footer{grid-template-columns:1fr;padding:32px 22px}footer nav{justify-content:flex-start}.symptoms a{font-size:14px;padding:13px 10px}.result{font-size:31px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
.mark{display:inline-block;font:18px/1 ui-monospace,monospace;letter-spacing:-4px;width:30px}.site-header nav{flex-basis:auto}@media(max-width:1100px){.site-header nav{flex-basis:100%}}@media(max-width:720px){.site-header{gap:16px 8px}.site-header .brand{font-size:22px}.site-header .small{gap:10px;padding:10px 12px}.hero h1{font-size:44px}}

/* Equalizer stays within the text width and stops at the letters' baseline. */
.site-header>.brand{position:relative;isolation:isolate;display:inline-flex;align-items:center;min-height:0;line-height:1.2}
.logo-wordmark{position:relative;z-index:1}
.logo-bars{position:absolute;inset:-.75em 0 .24em;display:flex;align-items:flex-end;justify-content:space-between;gap:3px;overflow:hidden;pointer-events:none;opacity:.48;z-index:0}
.logo-bars i{display:block;flex:1;height:80%;background:#f28a39;border-radius:0;transform-origin:bottom;transform:scaleY(var(--level));animation:logo-equalizer var(--beat) ease-in-out var(--offset) infinite alternate}
.logo-bars i:nth-child(4n+2){background:#ef6555}
.logo-bars i:nth-child(4n+3){background:#eec65a}
.logo-bars i:nth-child(4n+4){background:#cf7845}
.logo-sound{color:var(--ink)}
.logo-studio{color:var(--accent)}
@keyframes logo-equalizer{0%{transform:scaleY(.12)}28%{transform:scaleY(var(--level))}52%{transform:scaleY(.28)}76%{transform:scaleY(1)}100%{transform:scaleY(.36)}}
.site-header>.brand:hover .logo-bars i,.site-header>.brand:focus-visible .logo-bars i{animation-play-state:paused}
@media(prefers-reduced-motion:reduce){.logo-bars i{animation:none}}

/* Background-coloured clearance follows each letter, without hiding the bars between words. */
.logo-wordmark{-webkit-text-stroke:3px var(--bg);paint-order:stroke fill}

/* Remove one equalizer bar at each end without widening the remaining bars. */
.logo-bars{left:calc((100% + 3px)/16);right:calc((100% + 3px)/16)}