:root{--bg:#f5f7f5;--surface:#fff;--ink:#163039;--ink2:#3b555d;--muted:#71838a;--line:#e3eae6;--teal:#087a71;--tealDark:#00685f;--tealPale:#eaf5f2;--shadow:0 12px 40px rgba(19,46,45,.035);--warning:#9b651e;--warnBg:#fff8ea;--warnLine:#f1dfbc}
  *{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{margin:0;background:var(--bg);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;color:var(--ink);font-size:15px;line-height:1.5}
  button,input,textarea{font:inherit}
  button{cursor:pointer}
  button:focus-visible,input:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{outline:3px solid #5ac9be;outline-offset:3px}
  .wrap{max-width:1120px;margin:0 auto;padding:0 28px}
  .header{background:rgba(255,255,255,.94);border-bottom:1px solid var(--line)}
  .header-in{height:82px;display:flex;align-items:center;justify-content:space-between;gap:14px}
  .brand{display:flex;align-items:center;gap:13px;text-decoration:none;color:var(--ink);min-width:0}
  .logo{background:#16313b;color:#c2f5e8;width:43px;height:43px;border-radius:12px;display:grid;place-items:center;font-size:21px;font-weight:600;letter-spacing:-1.5px;flex:none}
  .brand-copy{min-width:0;display:flex;flex-direction:column;gap:1px}
  .brand-name{font-weight:750;letter-spacing:-.45px;font-size:16px;white-space:nowrap}
  .brand-small{font-size:11px;color:#809098;white-space:nowrap}
  .right-nav{display:flex;align-items:center;gap:8px}
  .nav-btn{border:1px solid transparent;border-radius:10px;background:transparent;color:var(--ink2);padding:9px 12px;display:flex;align-items:center;gap:8px;font-weight:570;font-size:13px}
  .nav-btn:hover{background:#f3f8f6}
  .nav-btn.active{background:var(--tealPale);color:var(--tealDark)}
  .nav-counter{border-radius:100px;background:#e6f4ef;color:#057267;padding:0 6px;font-size:11px;min-width:21px;text-align:center}
  svg.ico{width:18px;height:18px;stroke:currentColor;stroke-width:1.8;fill:none;stroke-linecap:round;stroke-linejoin:round;flex:none}
  main{padding-top:47px;padding-bottom:72px}
  .eyebrow{font-size:10px;letter-spacing:1.8px;font-weight:800;color:#137e77;text-transform:uppercase}
  h1{font-weight:720;letter-spacing:-1.4px;font-size:35px;line-height:1.14;margin:10px 0 21px}
  h2{letter-spacing:-.7px;margin:0;font-size:21px;line-height:1.3}
  h3{margin:0;font-size:15px;font-weight:750;letter-spacing:-.15px}
  .search-wrap{max-width:760px}
  .search-box{background:var(--surface);padding:6px;border:1px solid #d4e1dc;border-radius:15px;display:flex;align-items:center;box-shadow:0 7px 27px rgba(11,57,51,.035);height:64px;gap:8px}
  .search-icon{margin-left:17px;color:#7c9993}
  #query{flex:1;min-width:0;border:0;background:transparent;padding:9px 5px;font-size:17px;font-weight:500;color:var(--ink);outline:none;box-shadow:none}
  #query:focus{outline:none}
  #query::placeholder{color:#9aa9a8;font-weight:400}
  .clear{border:0;background:none;color:#859693;display:grid;place-items:center;padding:5px;border-radius:7px}
  .clear:hover{background:#f2f6f4}
  .primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--teal);border:1px solid var(--teal);border-radius:10px;color:white;padding:13px 21px;font-size:13px;font-weight:720;white-space:nowrap;min-height:48px}
  .primary:hover{background:var(--tealDark)}
  .examples{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin:13px 0 34px;color:var(--muted);font-size:12px}
  .chip{border:1px solid #dce8e4;background:#fff;color:#55736f;border-radius:30px;padding:5px 12px;font-size:12px}
  .chip:hover{border-color:#9dccc4;color:var(--tealDark)}
  .content{animation:enter .2s ease-out}
  @keyframes enter{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}
  .section-line{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:13px}
  .section-title{font-size:12px;font-weight:720;color:#69827f;letter-spacing:.25px}
  .text-button{border:none;background:transparent;color:#117c73;font-size:12px;font-weight:670;padding:6px 3px;display:inline-flex;align-items:center;gap:5px;border-radius:5px}
  .text-button:hover{text-decoration:underline}
  .text-button .ico{width:15px;height:15px}
  .result-header{padding:28px 33px;background:white;border:1px solid var(--line);border-radius:17px;box-shadow:var(--shadow)}
  .result-top{display:flex;justify-content:space-between;gap:20px;align-items:flex-start;margin-bottom:25px}
  .compound-name{font-size:30px;letter-spacing:-1.2px;font-weight:780;line-height:1.2;margin:3px 0 4px}
  .compound-sub{color:#60777e;font-size:14px;margin:0;overflow-wrap:anywhere}
  .result-actions{display:flex;align-items:center;gap:8px;flex:none}
  .subtle-btn{border:1px solid var(--line);border-radius:9px;background:#fff;padding:9px 12px;color:#446064;font-weight:650;font-size:12px;display:inline-flex;align-items:center;gap:7px;min-height:38px}
  .subtle-btn:hover{background:#f6faf8;border-color:#bed8d1}
  .subtle-btn.saved{color:#086e64;background:#eaf7f3;border-color:#bce5d9}
  .subtle-btn .ico{width:16px;height:16px}
  .details-grid{display:grid;grid-template-columns:.94fr 1.06fr;gap:28px}
  .structure{background:#f8faf8;min-height:265px;border:1px solid #eef1ec;border-radius:13px;display:flex;justify-content:center;align-items:center;position:relative;padding:16px}
  .structure svg:not(.ico){display:block;width:100%;height:auto;max-height:255px;overflow:visible}
  .sub-label{font-size:11px;font-weight:730;color:#6b8680;text-transform:uppercase;letter-spacing:1px;margin-bottom:15px}
  .props{display:grid;grid-template-columns:1fr 1fr;gap:0 25px}
  .prop{border-bottom:1px solid #e8eeeb;padding:11px 0 14px;min-width:0}
  .prop-label{font-size:12px;color:#7b8f94;margin-bottom:5px}
  .prop-value{font-weight:720;font-size:18px;line-height:1.25;overflow-wrap:anywhere}
  .prop-value.small{font-size:14px}
  .prop-caption{font-size:10px;color:#91a09f;margin-top:4px}
  .properties-footer{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-top:13px}
  .data-note{font-size:11px;color:#859493}
  .extra-props{display:none;margin-top:12px;padding-top:9px;border-top:1px solid var(--line)}
  .extra-props.open{display:grid}
  .extra-props .prop{border:none;padding:5px 0}
  .card{background:white;border:1px solid var(--line);border-radius:17px;box-shadow:var(--shadow);padding:30px 33px;margin-top:18px}
  .card-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:17px}
  .status{border-radius:20px;padding:5px 10px;display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:660;white-space:nowrap}
  .status.warning{background:var(--warnBg);color:var(--warning)}
  .status.neutral{background:#eff4f2;color:#677d78}
  .status .dot{width:6px;height:6px;background:currentColor;border-radius:50%}
  .syn-lead{font-size:15px;color:#405e63;line-height:1.72;margin:0 0 23px;max-width:840px}
  .route{background:#f6f9f7;border:1px solid #e4ece7;padding:18px 20px;border-radius:12px;display:flex;align-items:flex-start;gap:14px}
  .route-icon{height:34px;width:34px;display:grid;place-items:center;background:#e5f2ef;color:var(--teal);border-radius:9px;flex:none}
  .route-title{font-weight:700;font-size:14px;margin-bottom:4px}
  .route-desc{color:#768986;font-size:12px}
  .warning-inline{margin-top:14px;color:#92682c;font-size:12px;display:flex;gap:9px;align-items:flex-start}
  .warning-inline .ico{width:16px;height:16px;margin-top:2px}
  .disclosure{margin-top:17px;border-top:1px solid var(--line);padding-top:14px}
  .disclosure-btn{border:0;background:transparent;color:#147b74;font-size:13px;font-weight:700;display:inline-flex;align-items:center;gap:8px;padding:5px 0}
  .disclosure-btn .ico{transition:transform .2s}
  .disclosure-btn[aria-expanded="true"] .ico{transform:rotate(180deg)}
  .detail{padding:14px 0 3px;display:none;color:#4c676c;font-size:13px}
  .detail.open{display:block}
  .detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
  .detail-block{padding:17px 18px;background:#f8faf8;border-radius:10px}
  .detail-block strong{display:block;color:var(--ink);margin-bottom:7px}
  .detail-block p{margin:0;line-height:1.65}
  .lower-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:18px}
  .lower-grid .card{margin:0;padding:24px 27px}
  .description{font-size:13px;color:#70868b;line-height:1.65;margin:6px 0 12px}
  .sources-row{display:flex;align-items:flex-start;gap:9px;margin:11px 0;color:#3f5f65;font-size:12px;line-height:1.5}
  .sources-row .ico{color:#18857b;width:16px;height:16px;margin-top:1px}
  .sources-foot{background:#f7f9f7;padding:12px 13px;border-radius:8px;color:#7d8e8e;font-size:11px;margin-top:16px}
  textarea{resize:vertical;width:100%;border:1px solid #dbe7e2;border-radius:10px;padding:13px 14px;outline:none;min-height:112px;color:#26464e;background:#fff;font-size:13px;line-height:1.6}
  textarea:focus{border-color:#6ab3a9}
  .save-line{display:flex;align-items:center;gap:6px;color:#819693;font-size:11px;margin-top:10px}
  .save-line .ico{width:13px;height:13px}
  .footer{display:flex;justify-content:space-between;align-items:center;border-top:1px solid #e3eae6;color:#91a19d;font-size:11px;padding:23px 0 40px;gap:12px}
  .empty{padding:50px 25px;text-align:center;border:1px dashed #cadad3;border-radius:16px;background:#fff;color:#667f7b}
  .empty .ico{width:30px;height:30px;color:#b1c7c1}
  .empty h2{font-size:19px;color:var(--ink);margin:12px 0 5px}
  .empty p{font-size:13px;max-width:420px;margin:0 auto}
  .overlay{position:fixed;inset:0;background:rgba(14,36,39,.36);z-index:30;display:none;animation:fade .15s}
  .overlay.show{display:block}
  @keyframes fade{from{opacity:0}to{opacity:1}}
  .drawer{position:fixed;inset:0 0 0 auto;width:min(440px,100%);background:#fff;box-shadow:-20px 0 45px rgba(14,36,39,.1);z-index:31;transform:translateX(102%);transition:transform .22s ease;overflow-y:auto;padding:28px 27px}
  .drawer.show{transform:translateX(0)}
  .drawer-head{display:flex;align-items:flex-start;justify-content:space-between;gap:10px;margin-bottom:30px}
  .drawer h2{font-size:24px;margin-top:3px}
  .iconbtn{width:35px;height:35px;display:grid;place-items:center;color:#61787d;background:#fff;border:1px solid #e4ebe7;border-radius:9px}
  .drawer-intro{font-size:13px;color:#718488;margin:-15px 0 26px}
  .tool-list{display:flex;flex-direction:column;gap:8px}
  .tool{width:100%;border:1px solid #e4ece8;background:white;border-radius:12px;display:flex;align-items:center;text-align:left;padding:15px 13px;gap:13px;color:var(--ink)}
  .tool:hover{background:#f7fbf9;border-color:#cfe1da}
  .tool-icon{width:38px;height:38px;display:grid;place-items:center;border-radius:10px;background:#eff5f2;color:#1b766e;flex:none}
  .tool-copy{flex:1;min-width:0}.tool-copy strong{font-size:13px;display:block}.tool-copy small{font-size:11px;color:#81908e;display:block;margin-top:2px}
  .modal{z-index:33;position:fixed;top:50%;left:50%;width:min(540px,calc(100% - 34px));transform:translate(-50%,-47%);opacity:0;pointer-events:none;transition:.16s ease;background:#fff;border-radius:17px;padding:28px;box-shadow:0 28px 90px rgba(20,40,40,.18)}
  .modal.show{transform:translate(-50%,-50%);opacity:1;pointer-events:auto}
  .modal h2{font-size:22px;margin:0 0 12px}.modal p{font-size:13px;color:#668085;line-height:1.65}
  .modal pre{white-space:pre-wrap;overflow-wrap:anywhere;font-size:12px;line-height:1.7;padding:15px;background:#f4f8f6;border-radius:9px;color:#36565c}
  .dialog-foot{display:flex;justify-content:flex-end;gap:9px;margin-top:20px}
  .toast{position:fixed;bottom:25px;left:50%;transform:translate(-50%,12px);border-radius:10px;padding:12px 17px;background:#14373c;color:white;font-size:12px;box-shadow:0 10px 35px rgba(16,41,43,.25);z-index:50;opacity:0;transition:all .2s;pointer-events:none}
  .toast.show{opacity:1;transform:translate(-50%,0)}
  .saved-list{display:flex;flex-direction:column;gap:8px}
  .saved-link{width:100%;border:1px solid var(--line);border-radius:10px;background:white;text-align:left;padding:14px 16px}
  .saved-link:hover{background:#f6faf8}
  .saved-link strong{display:block;font-size:13px}.saved-link small{color:#80918f}
  .mini-heading{font-weight:730;color:#62817c;font-size:11px;letter-spacing:.8px;text-transform:uppercase;margin:20px 0 10px}
  .note-hidden{display:none}.note-hidden.show{display:block}
  @media(max-width:780px){
    .wrap{padding:0 18px}.header-in{height:70px}.brand-small{display:none}.brand-name{font-size:14px}.right-nav .nav-text{display:none}.nav-btn{padding:9px}.right-nav{gap:2px}
    main{padding-top:31px}.eyebrow{font-size:9px}h1{font-size:29px;margin-bottom:19px}.search-box{height:61px}#query{font-size:15px}.search-box .primary{padding:11px 14px;font-size:12px}
    .result-header,.card{padding:21px}.result-top{flex-wrap:wrap;gap:12px}.compound-name{font-size:26px}.details-grid{grid-template-columns:1fr;gap:23px}.structure{min-height:220px}.structure svg:not(.ico){max-height:200px}.lower-grid{grid-template-columns:1fr}.lower-grid .card{padding:21px}.detail-grid{grid-template-columns:1fr;gap:9px}
  }
  @media(max-width:410px){.brand-name{font-size:12px}.logo{width:38px;height:38px}.search-box{gap:3px}.search-icon{margin-left:10px}.search-box .primary{padding:10px 12px}.result-actions{width:100%}.result-header,.card{padding:18px}.props{gap:0 13px}.prop-value{font-size:16px}.footer{flex-direction:column;align-items:flex-start}}
  @media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}