.ic{--ic-accent:var(--theme-primary,#2563eb);--ic-text:var(--theme-text,#123477);--ic-muted:var(--theme-muted,#637ba5);--ic-surface:var(--theme-surface,#fff);--ic-soft:var(--theme-surface-2,#f5f8ff);--ic-border:var(--theme-border,#d8e3f7);color:var(--ic-text)}
.ic a{color:var(--ic-accent)}.ic .ic-breadcrumb{display:flex;flex-wrap:wrap;gap:10px;font-size:14px;margin:0 0 20px}.ic .ic-breadcrumb a{text-decoration:none}.ic .ic-breadcrumb a:hover{text-decoration:underline}
.ic-banner{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px;border:1px solid var(--theme-border,#d8e3f7);border-radius:20px;background:var(--theme-surface,#fff);color:var(--theme-text,#123477);margin:22px 0}.ic-banner h2{margin:0 0 6px;font-size:21px}.ic-banner p{margin:0;font-size:15px;line-height:1.7}.ic-banner>a{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;padding:12px 18px;border-radius:12px;background:var(--theme-primary,#2563eb);color:#fff;text-decoration:none;font-weight:700}
.ic-header{padding:28px;border:1px solid var(--ic-border);border-radius:22px;background:var(--ic-surface);margin-bottom:24px}.ic-eyebrow{color:var(--ic-accent);font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.ic h1{font-size:clamp(28px,3vw,38px);line-height:1.2;margin:10px 0 14px}.ic-header p{max-width:65ch;line-height:1.8;color:var(--ic-muted);font-size:16px;margin:0}.ic-instrument-header{display:flex;align-items:center;gap:28px}.ic-instrument-header img{width:160px;height:170px;object-fit:contain;border-radius:16px;padding:15px;background:#fff}
.ic-filters{padding:20px;background:var(--ic-surface);border:1px solid var(--ic-border);border-radius:18px;margin-bottom:24px}.ic label{display:block;font-weight:700;font-size:14px;margin-bottom:8px}.ic input{width:100%;padding:13px 15px;border:1px solid var(--ic-border);border-radius:12px;font:inherit;background:var(--ic-soft);color:var(--ic-text)}.ic-family-filters{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}.ic-family-filters button{font:inherit;font-size:14px;font-weight:600;cursor:pointer;padding:10px 16px;border-radius:24px;border:1px solid var(--ic-border);background:var(--ic-soft);color:var(--ic-text)}.ic-family-filters button[aria-pressed=true]{color:#fff;background:var(--ic-accent);border-color:var(--ic-accent)}.ic-count{font-size:14px;color:var(--ic-muted);margin:14px 0 0}
.ic-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.ic-card{display:flex;flex-direction:column;background:var(--ic-surface);border:1px solid var(--ic-border);border-radius:20px;overflow:hidden;text-decoration:none;transition:transform .18s,border-color .18s}.ic-card:hover{transform:translateY(-3px);border-color:var(--ic-accent)}.ic-card:focus-visible,.ic button:focus-visible,.ic a:focus-visible{outline:3px solid var(--ic-accent);outline-offset:4px}.ic-image{height:160px;padding:18px;background:#fff}.ic-image img{height:100%;width:100%;object-fit:contain}.ic-card-content{padding:20px;display:flex;flex-direction:column;flex:1}.ic-card h2,.ic-card h3{font-size:19px;line-height:1.4;margin:10px 0;color:var(--ic-text)}.ic-card p{font-size:14px;line-height:1.8;color:var(--ic-muted);margin:0 0 16px}.ic-tag{font-size:12px;font-weight:700;color:var(--ic-accent)}.ic-read{font-size:13px;font-weight:700;margin-top:auto;display:flex;gap:8px;align-items:center}.ic-meta{font-size:13px;color:var(--ic-muted);margin:0 0 16px}.ic-note{margin:24px 0;padding:18px 20px;background:var(--ic-soft);border:1px solid var(--ic-border);border-radius:16px;line-height:1.8;font-size:14px;color:var(--ic-muted)}
.ic-article{background:var(--ic-surface);border:1px solid var(--ic-border);border-radius:22px;padding:clamp(22px,4vw,42px)}.ic-article-inner{max-width:68ch;margin:auto}.ic-article p{font-size:16px;line-height:1.9;color:var(--ic-text);margin:12px 0 24px}.ic-article h2{font-size:22px;line-height:1.5;margin-top:32px}.ic-article .ic-lead{font-size:18px;color:var(--ic-muted)}.ic-sources{border-top:1px solid var(--ic-border);margin-top:30px;padding-top:8px}.ic-sources ul{padding-left:22px;line-height:1.8;font-size:15px}.ic-sources li{margin-bottom:10px}.ic-sources p{font-size:14px;color:var(--ic-muted)}.ic-related-title{margin:30px 0 18px;font-size:22px}.ic-empty{padding:24px;text-align:center;background:var(--ic-surface);border-radius:16px}.ic [hidden]{display:none!important}
body:has(.ic) .right-card,body:has(.ic) .mini-card{background:var(--theme-surface,#fff);color:var(--theme-text,#123477);border-color:var(--theme-border,#d8e3f7)}body:has(.ic) .right-card p{color:var(--theme-muted,#637ba5)}body:has(.ic) .right-card a{display:block;margin:12px 0;color:var(--theme-primary,#2563eb)}
@media(max-width:1100px){.ic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:600px){.ic-grid{grid-template-columns:1fr}.ic-instrument-header{flex-direction:column;align-items:flex-start}.ic-instrument-header img{width:120px;height:130px}.ic-banner{align-items:flex-start;flex-direction:column}.ic-header{padding:22px}.ic-image{height:180px}}@media(prefers-reduced-motion:reduce){.ic-card{transition:none}.ic-card:hover{transform:none}}
.ic-topic-nav{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 24px;padding:10px;background:var(--ic-surface);border:1px solid var(--ic-border);border-radius:14px}.ic-topic-nav a{padding:10px 14px;border-radius:9px;text-decoration:none;font-size:14px;font-weight:600}.ic-topic-nav a[aria-current]{background:var(--ic-accent);color:#fff}
.ic .ic-breadcrumb{gap:8px;margin-bottom:18px}.ic .ic-breadcrumb>span{display:none}.ic .ic-breadcrumb a{display:inline-flex;align-items:center;padding:9px 14px;border:1px solid var(--ic-border);border-radius:10px;background:var(--ic-surface);font-weight:600;font-size:13px;text-decoration:none}.ic .ic-breadcrumb a::before{content:'←';margin-right:8px}.ic .ic-breadcrumb a:hover{background:var(--ic-soft);text-decoration:none}
.ic-preview-image{height:130px;background:#fff;position:relative;padding:18px}.ic-preview-image img{height:100%;width:100%;object-fit:contain}.ic-preview-number{position:absolute;left:12px;top:12px;padding:6px 9px;border-radius:8px;background:var(--ic-accent);color:#fff;font-size:11px;font-weight:700}.ic-article-preview .ic-card-content{padding:22px}.ic-article-preview h2{font-size:21px}.ic-article-preview .ic-read{padding-top:18px;border-top:1px solid var(--ic-border)}
.ic-preview-image{height:190px;padding:0;overflow:hidden}.ic-preview-image img{display:block!important;width:100%!important;height:100%!important;object-fit:cover!important;object-position:center!important}.ic-article-photo img{height:340px;padding:0;object-fit:cover}.ic-article-inner{max-width:78ch}.ic-introduction{margin-top:28px}.ic-inline-photo{width:42%;margin:12px 0 18px}.ic-photo-right{float:right;margin-left:24px}.ic-photo-left{float:left;margin-right:24px}.ic-inline-photo img{width:100%;height:220px;object-fit:cover;border-radius:12px;display:block}.ic-inline-photo figcaption{font-size:12px;line-height:1.7;color:var(--ic-muted);margin-top:8px}.ic-illustrated-section{display:flow-root}.ic-takeaway{padding:20px 24px;border-left:3px solid var(--ic-accent);background:var(--ic-soft);border-radius:0 12px 12px 0;margin-top:24px}.ic-takeaway h2{margin:0}.ic-takeaway p{margin-bottom:0}@media(max-width:650px){.ic-inline-photo{float:none;width:100%;margin:18px 0}.ic-inline-photo img{height:220px}.ic-article-photo img{height:240px}}
.ic-image{padding:0;height:180px;overflow:hidden}.ic-image img{display:block;width:100%;height:100%;object-fit:cover}.ic-instrument-header img{width:210px;height:160px;object-fit:cover;padding:0}.ic-inline-photo img[src$="rhythm-practice-1.png"]{object-fit:contain;background:#fff}.ic-preview-image img[src$="51937.jpg"]{object-position:60% 45%}
.ic-editorial{border-radius:12px;border-top:4px solid var(--ic-accent);padding-top:38px}.ic-editorial h1{font-size:clamp(30px,3.4vw,46px);line-height:1.2;letter-spacing:-.035em}.ic-editorial p{font-size:17px;line-height:1.95}.ic-editorial h2{font-size:25px;letter-spacing:-.02em}.ic-editorial section{scroll-margin-top:24px}
.ic-article-photo{margin:28px 0}.ic-article-photo img{display:block;width:100%;height:300px;object-fit:contain;background:#fff;border-radius:12px;padding:20px}.ic-article-photo figcaption{font-size:12px;line-height:1.8;color:var(--ic-muted);padding:10px 0}
.ic-toc{padding:20px 24px;border-radius:14px;background:var(--ic-soft);border:1px solid var(--ic-border);display:grid;gap:10px;margin:24px 0 32px}.ic-toc strong{font-size:15px}.ic-toc a{font-size:14px;text-decoration:none}.ic-toc a:hover{text-decoration:underline}
.ic-pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:22px 0}.ic-pager a{padding:20px;border:1px solid var(--ic-border);border-radius:14px;background:var(--ic-surface);font-size:15px;font-weight:700;text-decoration:none;line-height:1.6}.ic-pager small{display:block;font-weight:500;color:var(--ic-muted);margin-bottom:5px}.ic-pager a:hover{border-color:var(--ic-accent)}@media(max-width:600px){.ic-pager{grid-template-columns:1fr}.ic-article-photo img{height:230px}}
.ic .ic-instrument-grid{grid-template-columns:repeat(auto-fill,minmax(165px,195px));gap:16px;justify-content:start;align-items:start}
.ic-instrument-grid .ic-card{border-radius:14px;min-width:0}
.ic-instrument-grid .ic-image{height:auto;aspect-ratio:3/4;padding:0}
.ic-instrument-grid .ic-image img{display:block;width:100%;height:100%;object-fit:cover}
.ic-instrument-grid .ic-card-content{padding:15px}
.ic-instrument-grid h2{font-size:18px;margin:8px 0}
.ic-instrument-grid p{font-size:13px;line-height:1.65;margin-bottom:14px}
.ic-instrument-grid .ic-read{font-size:12px}
.ic-instrument-grid [data-ic-instrument="flute"] img{object-position:55% 62%}
.ic-instrument-grid [data-ic-instrument="clarinet"] img{object-position:64% 62%}
.ic-instrument-grid [data-ic-instrument="bassoon"] img{object-position:76% 65%}
.ic-instrument-grid [data-ic-instrument="saxophone"] img{object-position:53% 55%}
.ic-instrument-grid [data-ic-instrument="trumpet"] img{object-position:63% 58%}
.ic-instrument-grid [data-ic-instrument="tuba"] img{object-position:57% 65%}
.ic-instrument-grid [data-ic-instrument="double-bass"] img{object-position:75% 65%}
@media(max-width:500px){.ic .ic-instrument-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.ic-instrument-grid .ic-card-content{padding:12px}.ic-instrument-grid h2{font-size:17px}}
.ic .ic-instrument-grid{align-items:stretch;grid-auto-rows:1fr}
.ic-instrument-grid .ic-card{height:100%}
.ic-instrument-grid .ic-image{flex:0 0 auto;height:240px;aspect-ratio:auto}
.ic-instrument-grid .ic-card-content{flex:1;min-height:190px}
.ic-instrument-grid :is([data-ic-instrument="clarinet"],[data-ic-instrument="bassoon"],[data-ic-instrument="trombone"]) .ic-image{padding:12px;background:#fff}
.ic-instrument-grid :is([data-ic-instrument="clarinet"],[data-ic-instrument="bassoon"],[data-ic-instrument="trombone"]) img{object-fit:contain;object-position:center}
.ic-instrument-grid [data-ic-instrument="double-bass"] img{object-position:50% 50%}
@media(max-width:500px){.ic-instrument-grid .ic-image{height:210px}}
.ic-inline-photo:has(img[src$=".svg"]){float:none;width:100%;margin:24px 0}
.ic-inline-photo img[src$=".svg"],.ic-article-photo img[src$=".svg"]{height:auto;max-height:none;object-fit:contain;padding:0;background:#f4f8ff}
.ic-preview-image img[src$=".svg"]{object-fit:contain;background:#f4f8ff}
.ic-sources ul{list-style:none;padding-left:0;display:grid;gap:12px}
.ic-sources li{margin:0}
.ic-sources li>a{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:48px;padding:12px 18px;border:1px solid var(--ic-border);border-radius:11px;background:var(--ic-soft);text-decoration:none;font-size:15px;font-weight:700;line-height:1.5}
.ic-sources li>a::after{content:'\2197';flex-shrink:0;font-size:20px}
.ic-sources li>a:hover{border-color:var(--ic-accent);background:var(--ic-surface)}
.ic-inline-photo:has(img[src$="bassoon-parts.jpg"]){float:none;width:100%;margin:24px 0}
.ic-inline-photo img[src$="bassoon-parts.jpg"]{height:auto;max-height:550px;object-fit:contain;background:#fff}
.ic-feedback{border:1px solid var(--ic-border);background:var(--ic-soft);border-radius:16px;padding:24px;margin-top:30px;clear:both}
.ic-feedback h2{margin:0 0 16px}.ic-feedback-actions{display:flex;flex-wrap:wrap;gap:12px}
.ic-feedback button,.ic-feedback select{font:inherit;font-size:16px;min-height:48px;padding:12px 18px;border:1px solid var(--ic-border);border-radius:10px;background:var(--ic-surface);color:var(--ic-text)}
.ic-feedback button{cursor:pointer;font-weight:700}.ic-feedback button:hover{border-color:var(--ic-accent)}.ic-feedback button[aria-pressed=true],.ic-feedback [data-report-issue]{background:var(--ic-accent);color:#fff}
.ic-feedback button:disabled{opacity:.6;cursor:wait}.ic-feedback details{margin-top:20px}.ic-feedback summary{font-size:16px;font-weight:700;cursor:pointer}.ic-feedback label{margin-top:16px}.ic-feedback select{max-width:100%;margin:0 8px 12px 0}.ic-feedback .ic-feedback-note{font-size:14px;line-height:1.7;margin:16px 0 0;color:var(--ic-muted)}.ic-feedback [role=status]:empty{display:none}
/* Shared navigation for every Instrument Corner guide and article. */
body:has(.ic) .right-panel{padding:20px 16px;min-width:0;overflow-x:hidden}
body:has(.ic) .right-card{padding:20px;min-width:0;border-radius:16px;margin-bottom:16px}
body:has(.ic) .right-card h3{font-size:17px;line-height:1.45;margin:0 0 14px;overflow-wrap:break-word}
body:has(.ic) .right-card p{font-size:14px;line-height:1.75;margin:0}
body:has(.ic) .right-card a{display:flex;align-items:center;gap:12px;min-height:48px;margin:9px 0 0;padding:12px 14px;border:1px solid var(--theme-border,#d8e3f7);border-radius:10px;background:var(--theme-surface-2,#f5f8ff);color:var(--theme-text,#123477);text-decoration:none;font-size:14px;font-weight:600;line-height:1.5;overflow-wrap:anywhere}
body:has(.ic) .right-card a::after{content:'\2192';margin-left:auto;color:var(--theme-primary,#2563eb);flex-shrink:0}
body:has(.ic) .right-card a:hover{background:var(--theme-surface,#fff);border-color:var(--theme-primary,#2563eb);color:var(--theme-primary,#2563eb)}
body:has(.ic) .right-card a:focus-visible{outline:3px solid var(--theme-primary,#2563eb);outline-offset:3px}