:root{--ink:#15313b;--muted:#60757c;--teal:#087e87;--paper:#f4f7f7;--line:#dce5e6;--red:#a53a2e;--amber:#87601c;--nav:232px;--shadow:0 4px 22px #142f3810; font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none;color-scheme:light}*{box-sizing:border-box}body{margin:0}a{color:var(--teal);text-decoration:none}a:hover{text-decoration:underline}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:wait;opacity:.6}button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #0aa1af;outline-offset:3px}button{color:inherit}button .app-icon,a .app-icon{flex-shrink:0}.app-icon{width:22px;height:22px;vertical-align:middle}.skip{position:fixed;top:-60px;left:10px;z-index:99;background:white;padding:12px}.skip:focus{top:10px}.sidebar{position:fixed;inset:0 auto 0 0;width:var(--nav);background:#102f39;color:#e8f3f4;padding:30px 20px;display:flex;flex-direction:column;z-index:15}.brand{display:flex;gap:12px;align-items:center;color:white;font-weight:700;font-size:17px;line-height:1.3}.brand:hover{text-decoration:none}.brand small{display:block;font-size:11px;font-weight:400;color:#a7c2c9;margin-top:5px}.brand-mark{width:38px;height:42px;background:#1d5963;display:grid;place-items:center;border-radius:11px 11px 15px 15px;font-size:21px;color:#b9eeeb}.sidebar nav{display:grid;gap:7px;margin-top:42px}.nav-link{display:flex;gap:12px;align-items:center;border-radius:9px;color:#bad0d5;min-height:48px;padding:12px 14px;font-size:14px}.nav-link:hover{text-decoration:none;background:#20434c}.nav-link.active{background:#255660;color:white}.sidebar-note{margin-top:auto;font-size:12px;line-height:1.6;color:#c6d8db;padding:20px 8px 0}.sidebar-note span{color:#8eacb4}.sidebar-note p{color:#a8c2c8}.shell{margin-left:var(--nav)}.topbar{height:76px;border-bottom:1px solid var(--line);background:#fff;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:0 38px}.context{font-size:14px;color:var(--muted)}.top-actions{display:flex;align-items:center;gap:14px}.connection{font-size:12px;color:var(--muted)}.connection:before{content:'';display:inline-block;background:#69a898;width:6px;height:6px;border-radius:50%;margin-right:6px}.connection.offline:before{background:#b88229}.small-button{background:white;border:1px solid var(--line);border-radius:8px;font-size:12px;padding:10px 12px;min-height:38px}.small-button:hover{border-color:var(--teal)}.mobile-brand,.mobile-nav{display:none}main{max-width:1280px;margin:auto;padding:38px 38px 28px;min-height:75vh}.page-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:24px}h1{font-size:32px;letter-spacing:-.8px;margin:5px 0 12px;line-height:1.2}h2{font-size:20px;margin:0 0 14px;letter-spacing:-.3px}h3{font-size:16px;margin:0 0 9px}p{line-height:1.65;margin:0 0 12px}.eyebrow{font-size:11px;letter-spacing:1.5px;font-weight:bold;text-transform:uppercase;color:var(--teal)}.lead{color:var(--muted);font-size:14px;max-width:680px}.edition{border:1px solid #dfd8bc;background:#fcf9ef;border-radius:8px;padding:9px 12px;white-space:nowrap;font-size:12px;color:var(--amber);margin-top:8px}.search-box{background:#fff;display:flex;gap:12px;align-items:center;padding:15px 18px;border:1px solid #bfcfd3;border-radius:12px;box-shadow:var(--shadow);margin-bottom:14px}.search-box .app-icon{color:var(--teal);width:24px;height:24px}.search-box input{width:100%;border:0;background:transparent;color:var(--ink);font-size:17px;padding:5px 0;outline:none;min-width:0}.search-box input::placeholder{color:#84959a}.clear{background:transparent;border:0;padding:6px;min-width:32px;font-size:22px;line-height:1}.filters{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 23px}.chip{min-height:38px;border:1px solid var(--line);border-radius:22px;background:#fff;padding:8px 14px;font-size:12px;white-space:nowrap}.chip.active{background:var(--ink);border-color:var(--ink);color:white}.chip:hover{border-color:var(--teal)}.section-line{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:23px 0 14px}.section-line h2{margin:0;font-size:17px}.section-line span{color:var(--muted);font-size:12px}.cards-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}.chemical{background:#fff;border:1px solid var(--line);border-radius:13px;position:relative;box-shadow:0 2px 5px #142f3804;transition:border .12s,transform .12s;min-width:0}.chemical:hover{border-color:#79aeb4;transform:translateY(-2px)}.chemical>a{padding:21px;display:block;min-height:202px;color:var(--ink)}.chemical>a:hover{text-decoration:none}.chemical h3{padding-right:20px;line-height:1.35;font-size:18px;margin:15px 0 7px}.chemical .english{font-size:12px;color:var(--muted);white-space:nowrap;text-overflow:ellipsis;overflow:hidden;margin:0 0 18px}.meta-line{display:flex;flex-wrap:wrap;gap:7px;align-items:center;font-size:11px}.un{font-size:12px;font-weight:bold;border-radius:5px;padding:5px 7px;background:#eef5f5;color:#275a65;letter-spacing:.3px}.cas{color:var(--muted);font-family:monospace;font-size:12px}.category{display:inline-flex;align-items:center;gap:6px;font-size:11px;color:var(--muted)}.category:before{content:'';display:inline-block;width:5px;height:5px;background:#6b8f9c;border-radius:50%}.favorite{position:absolute;right:12px;top:12px;background:transparent;border:0;width:36px;height:36px;color:#86999f;display:grid;place-items:center;border-radius:8px}.favorite:hover{background:#f2f6f6}.favorite.selected{color:#b17b19}.badge{font-size:10px;padding:4px 7px;border-radius:5px;background:#f6f0e2;color:#816225;display:inline-block}.badge.cwa{background:#eeeaf6;color:#625078}.empty{padding:48px 24px;text-align:center;border:1px dashed #bacdd1;border-radius:12px;color:var(--muted);background:#fff;grid-column:1/-1}.empty h2{color:var(--ink)}.queue-summary{border:1px solid var(--line);border-radius:11px;background:white;margin-top:25px}.queue-summary summary{cursor:pointer;padding:18px;font-size:14px;font-weight:bold}.queue-list{padding:0 18px 18px;display:grid;grid-template-columns:1fr 1fr;gap:8px;font-size:13px;color:var(--muted)}.queue-list span{padding:10px;border-top:1px solid #edf1f1}.bottom-note{font-size:12px;color:var(--muted);padding:16px 2px;line-height:1.65}.footer{max-width:1280px;margin:0 auto;padding:18px 38px 32px;color:#7c8e93;font-size:11px;line-height:1.6;border-top:1px solid #e6eded}.back-link{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--muted);margin-bottom:23px}.card-hero{position:relative;background:white;border:1px solid var(--line);border-radius:14px;padding:28px;margin-bottom:18px}.card-hero h1{margin-top:13px;max-width:85%}.card-hero .favorite{top:26px;right:22px}.card-hero .lead{margin-bottom:18px}.identifiers{display:flex;flex-wrap:wrap;gap:10px}.identifier{border:1px solid var(--line);border-radius:8px;background:#f9fbfb;padding:10px 13px;display:flex;align-items:center;gap:12px;text-align:left}.identifier .label{font-size:10px;letter-spacing:1px;color:var(--muted);display:block;margin-bottom:3px}.identifier strong{font-size:15px}.identifier .app-icon{width:16px;height:16px;color:#7a9299}.critical{border-left:3px solid #ba6756;padding:15px 18px;border-radius:0 9px 9px 0;background:#fff4f0;font-size:14px;line-height:1.6;margin-bottom:20px}.critical strong{display:block;color:#993d2b;font-size:11px;text-transform:uppercase;letter-spacing:1px;margin-bottom:4px}.jump-links{display:flex;gap:8px;margin-bottom:20px;overflow-x:auto;padding-bottom:5px;scrollbar-width:thin}.jump-links a{background:white;border:1px solid var(--line);padding:9px 14px;border-radius:22px;font-size:12px;white-space:nowrap}.card-columns{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(240px,1fr);gap:20px;align-items:start}.panel{border:1px solid var(--line);border-radius:12px;background:white;padding:22px;margin-bottom:15px;scroll-margin-top:20px}.panel p{font-size:14px;margin-bottom:0}.panel .label{font-size:11px;text-transform:uppercase;letter-spacing:1px;color:var(--muted);margin:18px 0 8px}.panel .label:first-child{margin-top:0}.disclosure{border:1px solid var(--line);border-radius:11px;background:white;margin-bottom:12px;scroll-margin-top:20px}.disclosure summary{padding:19px 22px;cursor:pointer;list-style:none;font-size:15px;font-weight:bold;display:flex;align-items:center;justify-content:space-between;gap:14px}.disclosure summary:after{content:'+';font-size:22px;font-weight:normal;color:#84999f}.disclosure[open] summary:after{content:'−'}.disclosure .body{padding:0 22px 22px;font-size:14px;line-height:1.7}.source-links{display:grid;gap:12px}.source-links a{font-size:13px;line-height:1.5;overflow-wrap:anywhere}.provenance{font-size:11px!important;color:var(--muted);border-top:1px solid var(--line);padding-top:14px;margin-top:18px}.source-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.source-card{border:1px solid var(--line);background:#fff;border-radius:12px;padding:22px;display:flex;flex-direction:column;gap:10px;min-width:0}.source-card h3{line-height:1.5;margin:0}.source-card p{font-size:13px;color:var(--muted);margin:0}.source-card .source-type{font-size:10px;text-transform:uppercase;letter-spacing:1px;color:var(--teal)}.source-card a{font-size:12px;margin-top:auto;padding-top:10px;overflow-wrap:anywhere}.source-year{font-size:11px;color:#788c93}.notice{padding:17px 20px;background:#edf4f4;border:1px solid #d4e3e5;border-radius:10px;font-size:13px;line-height:1.7;margin-bottom:22px}.two-fields{display:grid;grid-template-columns:1fr 1fr;gap:18px}.field label{display:block;font-size:12px;color:var(--muted);margin-bottom:8px}.field select{width:100%;padding:12px;border:1px solid #bcced2;border-radius:8px;background:white;color:var(--ink);min-height:46px}.interaction-result{margin-top:18px;padding:20px;background:#fff4ef;border-left:3px solid #c16854;border-radius:0 9px 9px 0;font-size:14px;line-height:1.7}.interaction-result.unknown{background:#f3f5f5;border-color:#9baeb3}.rule{border:1px solid var(--line);background:#fff;border-radius:11px;padding:20px;margin:12px 0}.rule p{font-size:14px;margin:0 0 8px}.rule a{font-size:12px}.equipment{display:grid;grid-template-columns:1fr 1fr;gap:16px}.equipment .panel{margin:0}.equipment .panel .tag{font-size:11px;color:var(--amber);display:block;margin-bottom:12px}.equipment ul{padding-left:18px;margin:10px 0 0}.equipment li{font-size:14px;line-height:1.7;margin-bottom:7px}.install-help{font-size:13px;line-height:1.7}.toast{position:fixed;bottom:24px;left:calc(var(--nav) + 30px);background:#183a45;color:#fff;border-radius:10px;padding:13px 18px;max-width:min(480px,88vw);font-size:13px;line-height:1.5;z-index:90;box-shadow:0 5px 25px #0002;display:none}.toast.show{display:block}.loading{padding:60px;text-align:center}.print-button{border:1px solid var(--line);border-radius:7px;background:white;padding:9px 12px;font-size:12px;display:flex;gap:7px;align-items:center;margin:12px 0}.cwa-note{background:#f3f0f7;color:#635279;border-color:#ded8eb}.count-pill{padding:4px 8px;border-radius:5px;background:#edf2f2;color:var(--muted);font-size:11px}.method-list{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:16px}.method-step{padding:15px;background:#f5f8f8;border-radius:8px;font-size:12px;line-height:1.6}.method-step strong{display:block;margin-bottom:5px;font-size:14px}
@media(max-width:1150px){.cards-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.card-columns{grid-template-columns:minmax(0,1.4fr) minmax(225px,1fr)}}
@media(max-width:800px){:root{--nav:0px}.sidebar{display:none}.shell{margin:0}.topbar{height:62px;padding:0 20px;position:sticky;top:0;z-index:20;background:#fffffff2;backdrop-filter:blur(12px)}.context{display:none}.mobile-brand{display:block;font-weight:700;font-size:16px;color:var(--ink)}.connection{font-size:10px}.top-actions{gap:10px}.small-button{font-size:10px;padding:8px;min-height:34px}main{padding:25px 20px 25px}.page-heading{gap:10px;margin-bottom:22px}h1{font-size:29px}.edition{font-size:10px;padding:7px 9px}.lead{font-size:13px}.search-box{padding:12px 14px}.search-box input{font-size:16px}.filters{flex-wrap:nowrap;overflow-x:auto;margin-right:-20px;padding-right:20px;padding-bottom:5px;scrollbar-width:none}.filters::-webkit-scrollbar{display:none}.chip{font-size:12px;min-height:38px}.cards-grid{gap:12px}.chemical>a{padding:18px;min-height:190px}.chemical h3{font-size:17px}.source-grid,.equipment{grid-template-columns:1fr 1fr}.card-columns{grid-template-columns:1fr}.card-hero{padding:23px}.card-hero h1{font-size:27px}.card-hero .favorite{right:15px;top:15px}.card-hero .lead{font-size:12px}.critical{font-size:14px}.jump-links{position:sticky;top:62px;z-index:10;padding:11px 0;background:var(--paper);margin:0 -2px 13px}.jump-links a{padding:9px 13px}.mobile-nav{display:flex;position:fixed;inset:auto 0 0;z-index:30;background:#fff;border-top:1px solid #d9e3e5;padding:7px 10px max(9px,env(safe-area-inset-bottom));justify-content:space-around;box-shadow:0 -2px 14px #142f3806}.mobile-nav a{display:grid;place-items:center;gap:4px;color:#80969e;font-size:9px;padding:4px 8px;min-width:54px;min-height:45px;border-radius:8px;text-decoration:none}.mobile-nav a.active{color:var(--teal);background:#edf6f6}.mobile-nav .app-icon{width:21px;height:21px}.footer{padding:18px 20px 100px}.toast{left:20px;bottom:90px}.back-link{margin-bottom:16px}.panel{padding:20px}.two-fields{gap:12px}.field select{font-size:13px}.queue-list{grid-template-columns:1fr}.source-card{padding:19px}.method-list{grid-template-columns:1fr}.page-heading .edition{display:none}}
@media(max-width:480px){.cards-grid,.source-grid,.equipment{grid-template-columns:1fr}.chemical>a{min-height:initial;padding:19px 18px}.chemical h3{margin:11px 0 6px;font-size:19px}.chemical .english{margin-bottom:15px}.chemical .meta-line{gap:9px}.favorite{top:12px;right:12px}.two-fields{grid-template-columns:1fr}.card-hero h1{font-size:26px}.identifiers{gap:8px}.identifier{padding:9px 10px}.identifier strong{font-size:13px}.section-line{margin-top:21px}.connection{display:none}}
@media print{.sidebar,.topbar,.mobile-nav,.back-link,.jump-links,.favorite,.print-button,.footer,.toast{display:none!important}.shell{margin:0}main{padding:0;max-width:none}.card-columns{display:block}.card-hero,.panel,.disclosure{break-inside:avoid;box-shadow:none;border:1px solid #ccc}.disclosure .body{display:block!important}.card-hero h1{max-width:100%}body{background:white;font-size:11pt}.critical{background:#fff;border:1px solid #999}.source-links a{color:black;text-decoration:underline}}