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/* A quiet editorial library: clear choices first, detail when it is useful. */
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@media print{.reading-disclosure::details-content{content-visibility:visible!important}.reading-disclosure>summary:after{display:none}.handbook-prose .reading-disclosure{border:0;border-radius:0;margin:18px 0}.reading-disclosure>summary{padding:0;background:transparent}.prose .reading-disclosure>summary h2{font-size:14pt}.reading-disclosure>p,.reading-disclosure>ul,.reading-disclosure>ol,.reading-disclosure>div{margin:10px 0}.reading-disclosure>.references{padding:10px 0}.handbook-prose{font-size:11pt}.handbook-prose>ul{display:block;list-style:disc;padding-left:20px}.handbook-prose>ul li{padding:0;border:0;background:transparent;font-size:11pt}.hero h1{font-size:32pt}.popular-carousel{display:grid;grid-template-columns:repeat(3,1fr);grid-auto-flow:row;overflow:visible}.carousel-controls,.hero-actions{display:none}}
.browse-toggle{display:none}.catalogue-controls{min-height:0;display:flex;flex-direction:column;flex:1}@media(max-width:760px){.browse-toggle{display:flex;justify-content:space-between;width:100%;padding:13px 0 0;border:0;background:none;color:var(--accent);font:12px var(--sans);cursor:pointer}.catalogue-controls{display:none}.catalogue-open .catalogue-controls{display:flex}.catalogue-open .entry-list{max-height:210px}.sidebar{padding-bottom:15px}}
.filters{grid-template-columns:1fr}.filters select{width:100%}.search-wrap input{padding-right:14px}.active-filters{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}.active-filters:empty{display:none}.filter-chip{display:block;max-width:100%;overflow-wrap:anywhere;background:var(--selected);border:1px solid var(--control-border);border-radius:7px;padding:7px 9px;font:12px/1.4 var(--sans);color:var(--ink)}.filter-chip>span{font-weight:700;margin-right:4px}.clear-filters{display:block;width:100%;border:1px solid var(--accent);border-radius:7px;padding:10px 12px;margin:9px 0 0;background:var(--surface);color:var(--accent);font:600 12px var(--sans);text-align:center}.clear-filters:hover{background:var(--selected)}.clear-filters:disabled{display:none}.browse-toggle.has-filters{font-weight:700}.entry-header{padding-bottom:22px}.entry-header .summary{margin-bottom:0}.modebar{margin-top:23px;margin-bottom:20px}.section-nav{gap:7px;padding-bottom:24px;margin-bottom:28px}.section-nav a{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--line);border-radius:7px;background:var(--pale);padding:8px 12px;color:var(--ink);font:500 12px/1.3 var(--sans);text-decoration:none}.section-nav a:hover,.section-nav a[aria-current=location]{border-color:var(--accent);background:var(--selected);color:var(--accent)}.section-nav .interaction-link{background:var(--selected);border-color:var(--control-border);color:var(--accent)}.stack-group-heading{font:27px/1.3 var(--serif);margin:34px 0 8px}.interaction-picker{margin:0 0 24px;padding:18px 22px;border:1px solid var(--line);border-radius:10px;background:var(--pale)}.interaction-picker label,.interaction-checker label{display:block;font:600 12px var(--sans);color:var(--muted);margin-bottom:8px}.interaction-picker select,.interaction-checker select{display:block;width:100%;max-width:620px;border:1px solid var(--control-border);border-radius:6px;background:var(--surface);padding:12px;font:15px var(--sans);color:var(--ink)}.interaction-summary{font:15px/1.7 var(--sans);color:var(--muted)}.interaction-checker{margin:26px 0;padding:24px;background:var(--pale);border:1px solid var(--control-border);border-radius:12px}.interaction-checker h2{margin-top:0;font:25px var(--serif)}.interaction-pair-result:empty{display:none}.interaction-pair-result{margin-top:20px}.interaction-grid{display:grid;gap:14px;margin:20px 0 32px}.interaction-record{border:1px solid var(--line);border-left:3px solid var(--accent-soft);padding:20px;border-radius:8px;background:var(--surface)}.interaction-record h3{margin:0 0 10px;font:600 17px/1.4 var(--sans)}.interaction-record p,.interaction-note p{font:14px/1.7 var(--sans)}.interaction-concern{border-left-color:var(--warning);background:var(--warning-bg)}.interaction-co-use{border-left-color:var(--accent-soft)}.interaction-record details{margin-top:12px;padding-bottom:0;border-bottom:0}.interaction-record summary,.interaction-note summary{font-size:13px}.interaction-notes{margin:30px 0}.interaction-note{padding:20px 0}.interaction-note .prose{font-size:16px}.interaction-note .references{font:12px/1.6 var(--sans)}@media(max-width:760px){.modebar a{min-width:140px}.section-nav{gap:6px}.section-nav a{font-size:12px;padding:8px 10px}.entry-header h1{font-size:36px}.interaction-picker,.interaction-checker{padding:18px}.interaction-picker select,.interaction-checker select{font-size:16px}.interaction-record{padding:17px}.interaction-grid{grid-template-columns:1fr}}
.interaction-summary{display:flex;flex-wrap:wrap;gap:10px;margin:20px 0}.interaction-summary>span{padding:9px 12px;border:1px solid var(--line);border-radius:7px;background:var(--surface);font-size:12px}.interaction-summary strong{color:var(--ink);font-size:16px;margin-right:4px}.interaction-record>summary{display:flex;justify-content:space-between;align-items:baseline;gap:12px;font-size:15px}.interaction-record-count{font-size:11px;color:var(--muted);font-weight:400;white-space:nowrap}.interaction-record-body{margin-top:18px}.interaction-evidence+.interaction-evidence{border-top:1px solid var(--line);padding-top:14px;margin-top:18px}.interaction-evidence h4{font-size:14px;margin:10px 0}.interaction-note>summary>span:first-child{display:block;font-size:15px}.interaction-note-preview{display:block;font-size:12px;font-weight:400;line-height:1.6;color:var(--muted);margin-top:6px;max-width:80ch}.interaction-source-links,.interaction-pair-link,.interaction-entry-link{font-size:12px;line-height:1.7}.interaction-source-links a{margin-right:12px}.interaction-identity-note{padding:14px 17px;background:var(--warning-bg);border-left:3px solid var(--warning);font-size:13px;line-height:1.7}
.popular-section .section-title{align-items:center}.popular-section .section-title h2{margin:0}.popular-card{padding-top:88px}.quick-links{display:block;margin-top:46px;padding-top:28px;border-top:1px solid var(--line)}.quick-links h2{font:32px/1.2 var(--serif);margin:0 0 22px}.quick-link-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.quick-links .quick-link{display:block;padding:20px;border:1px solid var(--line);border-radius:8px;background:var(--pale);text-decoration:none;color:var(--ink)}.quick-link strong{display:flex;justify-content:space-between;gap:15px;font:600 15px/1.4 var(--sans)}.quick-link>span{display:block;margin-top:6px;font:12px/1.5 var(--sans);color:var(--muted)}.quick-links .quick-link:hover{border-color:var(--accent);background:var(--hover)}.all-entry-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 28px}.all-entry-grid>a{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:17px 0;border-bottom:1px solid var(--line);color:var(--ink);font:15px/1.5 var(--sans);text-decoration:none}.all-entry-grid>a:hover{color:var(--accent)}.all-entry-grid>a>span{flex-shrink:0;color:var(--accent)}@media(max-width:760px){.popular-section .section-title{gap:12px}.popular-section .section-title h2{font-size:27px}.popular-card{padding-top:80px}.quick-link-grid,.all-entry-grid{grid-template-columns:1fr}.quick-links{margin-top:30px}.quick-links h2{font-size:27px}}

/* Keep peptide browsing primary while retaining other compounds and reference directories. */
.brand #edition-label{font-size:10px;letter-spacing:.35px;font-weight:500;text-transform:none}.entry-list .catalogue-group h2{position:sticky;top:0;z-index:2;background:var(--sidebar);border-bottom:1px solid var(--line);box-shadow:0 3px 5px var(--sidebar)}
.explore-menu{position:relative;padding:0;border:0;line-height:1.7}.explore-menu>summary{display:flex;align-items:center;gap:5px;list-style:none;font-size:13px;font-weight:400;color:var(--muted)}.explore-menu>summary::-webkit-details-marker{display:none}.explore-menu.is-current>summary,.explore-menu[open]>summary{color:var(--accent)}.explore-menu.is-current>summary{text-decoration:underline;text-underline-offset:4px}.explore-links{position:absolute;top:calc(100% + 14px);left:-18px;min-width:215px;display:grid;padding:8px;border:1px solid var(--line);border-radius:9px;background:var(--paper);box-shadow:0 12px 30px var(--shadow);z-index:30}.masthead nav .explore-links a{display:block;padding:10px 12px;border-radius:5px;font-size:13px;color:var(--ink)}.explore-links a:hover,.explore-links a[aria-current]{background:var(--pale);color:var(--accent)}.sidebar-sort{display:grid;grid-template-columns:1.2fr 1.1fr .55fr;gap:4px;margin:20px 0 12px}.sidebar-sort button{min-width:0;border:1px solid var(--control-border);border-radius:5px;padding:8px 4px;background:transparent;color:var(--muted);font:550 11px/1.35 var(--sans);cursor:pointer}.sidebar-sort button:hover{background:var(--hover)}.sidebar-sort button[aria-pressed=true]{background:var(--accent);color:var(--on-accent);border-color:var(--accent)}.entry-list{direction:rtl;padding-right:0;padding-left:7px;scrollbar-gutter:stable}.entry-list>*{direction:ltr;text-align:left}.filters label{width:100%}.sidebar .search-wrap input{padding:12px;font-size:13px}
@media(max-width:1100px){.explore-menu>summary{font-size:11px}}
@media(max-width:760px){.explore-menu>summary{font-size:12px}.explore-links{left:0}.sidebar-sort{margin-top:16px;max-width:420px}.sidebar-sort button{font-size:12px;padding:10px 5px}}
.entry-list{display:block}.catalogue-group{padding:0;border:0;margin:0 0 12px}.catalogue-group h2,.catalogue-group>summary{display:flex;align-items:center;gap:8px;margin:0;padding:10px 8px;font:650 12px/1.4 var(--sans);color:var(--ink)}.catalogue-group h2>span,.catalogue-group>summary>span{margin-left:auto;font:400 10px/1.4 var(--sans);color:var(--muted)}.catalogue-group>summary{list-style:none;border-top:1px solid var(--line);color:var(--muted)}.catalogue-group>summary::-webkit-details-marker{display:none}.catalogue-group>summary:after{content:'+';color:var(--accent);font-size:17px;font-weight:400}.catalogue-group[open]>summary:after{content:'−'}.catalogue-group .empty{margin:0;padding:8px;font-size:12px}.directory-links{flex-wrap:wrap;gap:12px 22px;margin:0 0 25px}.directory-links a{font-size:13px}.sidebar-foot a[aria-current]{font-weight:650;color:var(--ink);text-decoration-thickness:2px}
@media(max-width:760px){.catalogue-group-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 10px}.catalogue-group .empty{grid-column:1/-1}.sidebar-foot{display:flex;flex-wrap:wrap;gap:6px 18px;padding-top:14px;margin-top:0;font-size:11px}.sidebar-foot a{display:inline}.sidebar-foot>span{display:none}}

/* Site design pass: compact navigation and a more legible peptide catalogue. */
:root{--masthead-height:87px}
.masthead{background:var(--paper)}
.more-menu .explore-links{left:auto;right:0;min-width:180px}
.sidebar{top:var(--masthead-height);height:calc(100dvh - var(--masthead-height));padding-top:18px;padding-bottom:18px}
.sidebar-title{margin:0 0 13px;font:normal 25px/1.2 var(--serif);letter-spacing:-.4px}
.sort-label{margin-top:16px;font:600 10px/1.4 var(--sans);letter-spacing:.7px;text-transform:uppercase;color:var(--muted)}
.sidebar-sort{grid-template-columns:1fr 1fr .7fr;margin:6px 0 10px}
.sidebar-sort button{padding:7px 4px;font-size:12px}
.entry-link small{font-size:11px;line-height:1.5;font-weight:400}
.entry-list .catalogue-group h2{font-size:11px;letter-spacing:.2px;padding:9px 8px}
.sidebar-foot{display:flex;justify-content:space-between;gap:12px;align-items:center;padding-top:16px;font-size:11px}
.sidebar-foot a{display:inline;white-space:nowrap}
.sidebar-foot a:last-child{margin-left:auto}
.popular-section .section-title{margin-bottom:20px;gap:18px}
.popular-section .section-title h2{font-size:clamp(34px,3.4vw,44px);line-height:1.12;letter-spacing:-1px}
.carousel-controls{flex-shrink:0}
.popular-carousel{grid-auto-columns:minmax(210px,calc((100% - 32px)/3))}
.popular-card{padding:24px 22px 20px;min-height:305px}
.popular-art{display:flex;align-items:center;width:100%;height:84px;color:var(--accent);margin-bottom:18px}
.popular-art .peptide-icon{display:block;width:76px;height:76px}
.popular-class{display:block;min-height:25px;font:650 11px/1.5 var(--sans);letter-spacing:.8px;color:var(--accent)}
.popular-card strong{font-size:30px;line-height:1.15;margin-top:0;letter-spacing:-.7px}
.popular-topic{font-size:15px;line-height:1.55;margin:10px 0 22px}
.popular-card .card-action{margin-top:auto;font-size:11px}
.receptor-note{margin:0 0 18px;padding:11px 14px;border-left:2px solid var(--accent-soft);background:var(--pale);font:13px/1.6 var(--sans);color:var(--muted)}
@media(min-width:761px){html{scroll-padding-top:calc(var(--masthead-height) + 20px)}.prose h2[id],.prose li[id]{scroll-margin-top:calc(var(--masthead-height) + 20px)}}
@media(min-width:761px) and (max-width:1100px){.popular-carousel{grid-auto-columns:minmax(210px,calc((100% - 16px)/2))}}
@media(max-width:850px){.sidebar{padding-top:18px}.sidebar-title{font-size:23px}.sidebar-foot{font-size:10px;gap:8px}.popular-section .section-title h2{font-size:34px}}
@media(max-width:760px){.sidebar{top:0;height:auto}.sidebar-title{font-size:24px;margin-bottom:12px}.entry-link small{display:block;font-size:11px}.sidebar-foot{font-size:11px;padding-top:15px}.popular-carousel{grid-auto-columns:78%}.popular-section .section-title h2{font-size:32px}.popular-card{min-height:300px;padding:22px}.popular-card strong{font-size:30px}.popular-topic{font-size:15px}.sort-label{margin-top:15px}.sidebar-sort{margin-top:6px}.masthead nav{justify-content:space-between}.more-menu .explore-links{right:0;left:auto}}
@media print{.popular-card{break-inside:avoid}.popular-art{height:50px}.popular-art .peptide-icon{height:50px;width:50px}}

/* Compact browsing controls leave more room for the peptide list. */
.sidebar{padding-top:12px;padding-bottom:12px}
.sidebar-title{font-size:22px;margin-bottom:8px}
.sidebar .search-wrap input{padding:8px 10px;line-height:1.4}
.sidebar .filters{margin-top:9px}
.sidebar .filters label{display:flex;align-items:center;gap:10px;font-size:10px;white-space:nowrap}
.sidebar .filters select{min-width:0;flex:1;width:auto;padding:4px 0}
.sidebar-sort-row{display:flex;align-items:center;gap:12px;margin:8px 0 6px}
.sidebar .sort-label{margin:0;font-size:10px;flex-shrink:0}
.sidebar .sidebar-sort{display:flex;gap:14px;margin:0;flex:1}
.sidebar .sidebar-sort button{border:0;border-radius:0;padding:4px 0;min-height:24px;background:none;color:var(--accent);font:400 11px/1.4 var(--sans);text-decoration:underline;text-underline-offset:3px;white-space:nowrap}
.sidebar .sidebar-sort button:hover{color:var(--accent-hover);background:none}
.sidebar .sidebar-sort button[aria-pressed=true]{color:var(--ink);background:none;font-weight:700;text-decoration-thickness:2px}
.sidebar .active-filters{margin-top:6px;gap:4px}
.sidebar .filter-chip{padding:4px 6px;font-size:11px}
.sidebar .clear-filters{align-self:flex-start;width:auto;margin:4px 0 0;border:0;background:none;padding:3px 0;font-size:11px;text-decoration:underline;text-underline-offset:3px}
.sidebar-foot{padding-top:10px}
#explore-menu>summary{gap:9px;padding:5px 9px;border:1px solid var(--control-border);border-radius:5px;background:var(--pale);color:var(--accent);text-decoration:none;line-height:1.5}
#explore-page-label{max-width:210px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.menu-chevron{width:16px;height:16px;flex-shrink:0;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
#explore-menu[open] .menu-chevron{transform:rotate(180deg)}
#explore-menu .explore-links{left:0;top:calc(100% + 8px)}
.masthead nav{align-items:center}
@media(max-width:760px){.sidebar-title{font-size:22px;margin-bottom:7px}.sidebar .search-wrap input{font-size:16px;padding:7px 10px}.browse-toggle{padding-top:9px}.sidebar .sidebar-sort button{font-size:12px}.sidebar-foot{padding-top:10px}#explore-page-label{max-width:180px}}

.sidebar .filter-status{display:flex;align-items:baseline;flex-wrap:wrap;gap:2px 6px;margin-top:8px;padding:5px 7px;border-left:2px solid var(--danger);border-radius:3px;background:var(--danger-bg);color:var(--danger);font:12px/1.5 var(--sans)}
.sidebar .filter-status[hidden]{display:none}
.sidebar .filter-status .active-filters{display:inline;min-width:0;margin:0;overflow-wrap:anywhere}
.sidebar .filter-status .clear-filters{display:inline;align-self:auto;flex-shrink:0;min-height:24px;width:auto;margin:0;padding:2px 0;color:inherit;font:650 12px/1.5 var(--sans);text-decoration-thickness:1px}
.sidebar .filter-status .clear-filters:hover{background:none;color:var(--danger);text-decoration-thickness:2px}
