@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;650;700&family=Manrope:wght@400;500;600;650;700;800&display=swap');
:root{--bg:#f6f7f3;--surface:#fff;--ink:#233c36;--muted:#65736d;--border:#dce3dd;--green:#156252;--soft:#eaf2ed;--warning:#795119;--warn-bg:#fff5e3;--shadow:0 5px 22px #233c3605;color-scheme:light;font-family:'DM Sans',system-ui,sans-serif;background:var(--bg);color:var(--ink)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:85px}body{margin:0}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer;color:inherit}a{color:var(--green);text-decoration:none}a:hover{text-decoration:underline}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #70aa93;outline-offset:3px}button{border:0;background:none;min-height:44px}button:disabled{cursor:default;opacity:.5}input,select{min-height:50px;color:var(--ink)}h1,h2,h3,p{margin:0}h1,h2,h3{font-family:Manrope,system-ui,sans-serif}h2{font-size:25px;letter-spacing:-1px}p{line-height:1.55}.muted{color:var(--muted)}.small{font-size:11px}.eyebrow{font-size:10px;font-weight:700;letter-spacing:1.8px;color:var(--green);margin-bottom:12px}.topbar{height:83px;max-width:1192px;margin:auto;display:flex;align-items:center;border-bottom:1px solid var(--border);gap:24px;padding:0 28px}.brand{font-family:Manrope,sans-serif;display:flex;align-items:center;gap:10px;font-size:32px;letter-spacing:-2px;font-weight:800;color:var(--ink)}.brand:hover{text-decoration:none}.brandmark{background:var(--green);color:white;font-size:31px;width:33px;height:37px;display:grid;place-items:center;border-radius:10px;line-height:1;letter-spacing:0}.branddot{color:var(--green)}.brand-caption{font-size:9px;letter-spacing:2px;color:var(--muted)}.header-actions{margin-left:auto;display:flex;align-items:center;gap:14px}.prototype{font-size:11px;border:1px solid var(--border);padding:5px 9px;border-radius:5px;color:var(--muted)}.icon-button{width:44px;min-width:44px;border:1px solid var(--border);border-radius:12px;background:var(--surface);font-size:21px;display:grid;place-items:center}.icon-button:hover{background:var(--soft)}main{max-width:1136px;margin:auto;padding:0 0 25px}.intro{padding:41px 0 35px;display:flex;justify-content:space-between;align-items:end}.intro h1{font-size:44px;line-height:1.15;letter-spacing:-2px;font-weight:650}.intro h1 span{color:var(--green)}.lead{font-size:14px;color:var(--muted);margin-top:15px}.intro-note{display:flex;align-items:center;gap:15px;font-size:12px;color:var(--muted);padding-bottom:7px}.intro-note strong{font-weight:500;color:var(--ink)}.note-symbol{font-size:33px;font-weight:400;width:55px;height:55px;background:var(--soft);border:1px solid var(--border);border-radius:50%;display:grid;place-items:center;color:var(--green)}.areas{display:flex;border-bottom:1px solid var(--border);gap:32px;margin-bottom:25px}.areas button{display:flex;gap:10px;align-items:center;position:relative;padding:0 0 14px;min-height:48px;font-size:13px;color:var(--muted);font-weight:600}.areas button span{font-size:10px;font-weight:400;background:var(--surface);padding:3px 7px;border-radius:4px;white-space:nowrap}.areas button.active{color:var(--green)}.areas button.active:after{content:'';position:absolute;bottom:-1px;left:0;right:0;height:3px;background:var(--green);border-radius:3px}.workspace{display:grid;grid-template-columns:260px 1fr;gap:22px;align-items:start}.panel-heading{display:flex;justify-content:space-between;align-items:center;font-size:11px;font-weight:600;margin-bottom:12px}.filters{display:flex;gap:3px;margin-bottom:12px}.filters button{font-size:11px;padding:0 10px;min-height:34px;border-radius:7px;color:var(--muted)}.filters button.active{background:var(--soft);color:var(--green);font-weight:600}.tool{border:1px solid transparent;border-radius:11px;width:100%;padding:13px 12px;display:flex;gap:12px;align-items:center;text-align:left;margin-bottom:4px;background:transparent;min-height:66px}.tool:hover{background:var(--surface)}.tool.active{background:var(--surface);border-color:#b6cdc0;box-shadow:var(--shadow)}.tool-icon{width:35px;height:35px;display:grid;place-items:center;background:var(--soft);color:var(--green);border-radius:9px;font-size:19px}.tool-label{font-weight:600;font-size:12px}.tool-label small{display:block;font-size:10px;font-weight:400;color:var(--muted);margin-top:3px}.tool-arrow{margin-left:auto;font-size:17px;color:var(--green)}.sidebar-tip{display:flex;gap:10px;margin-top:25px;border-top:1px solid var(--border);padding:22px 10px;font-size:11px;color:var(--muted)}.sidebar-tip>span{font-size:18px;color:var(--green)}.sidebar-tip strong{font-weight:500;color:var(--ink)}.calculator{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:18px}.input-panel{background:var(--surface);border:1px solid var(--border);padding:25px;border-radius:16px;box-shadow:var(--shadow)}.calc-heading{display:flex;align-items:center;justify-content:space-between}.calc-heading .eyebrow{font-size:8px;letter-spacing:1.4px;margin-bottom:8px}.calc-heading .icon-button{border:0;background:transparent}.calc-description{font-size:12px;color:var(--muted);margin:12px 0 24px}.field{margin-top:18px}.field>label{display:block;font-size:12px;font-weight:600;margin-bottom:7px}.field-hint{font-size:10px;color:var(--muted);margin-top:6px}.input-group{display:flex;align-items:center;border:1px solid #ccd7cf;border-radius:9px;background:var(--bg);overflow:hidden;transition:border-color .15s}.input-group:focus-within{border-color:var(--green);box-shadow:0 0 0 2px var(--soft)}.input-group input{width:100%;min-width:0;padding:10px 13px;border:0;background:transparent;outline:0;font-size:19px;font-weight:500;letter-spacing:.2px;font-variant-numeric:tabular-nums}.input-group input::placeholder{color:#a1aba5;font-size:17px;font-weight:400}.input-group select{max-width:110px;background:transparent;border:0;border-left:1px solid var(--border);outline:0;padding:0 9px;font-size:12px;cursor:pointer;border-radius:0}.fixed-unit{font-size:12px;padding:0 14px;color:var(--muted)}.input-group.invalid{border-color:#aa4233}.two-fields{display:grid;grid-template-columns:1fr 1fr;gap:12px}.choice-label{font-size:11px;color:var(--muted);margin-bottom:7px}.segmented{display:flex;background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:3px;gap:3px;margin-bottom:15px}.segmented button{min-height:36px;flex:1;border-radius:6px;font-size:11px;padding:5px 7px}.segmented button.active{background:var(--surface);box-shadow:0 1px 4px #0000000d;color:var(--green);font-weight:700}.form-actions{display:flex;justify-content:space-between;margin-top:20px;gap:6px}.text-button{font-size:11px;padding:4px 0;color:var(--green);text-align:left}.text-button:hover{text-decoration:underline}.input-note{font-size:9px;color:var(--muted);margin-top:3px}.demo{margin-top:12px;background:var(--warn-bg);padding:8px;font-size:9px;color:var(--warning);border-radius:6px}.result-panel{border:1px solid #cbdcd0;border-radius:16px;background:var(--soft);padding:23px;display:flex;flex-direction:column;min-height:420px}.result-top{display:flex;align-items:center;justify-content:space-between;font-size:9px;letter-spacing:1.5px;color:var(--green);font-weight:700}.result-top span:last-child{letter-spacing:0;font-size:10px;font-weight:400;background:var(--surface);padding:4px 8px;border-radius:20px}.result-empty{padding:55px 5px 60px;text-align:center;color:var(--muted)}.result-empty-symbol{display:grid;place-items:center;width:58px;height:58px;border:1px dashed #a7bdb0;border-radius:50%;margin:0 auto 18px;font-size:27px;color:var(--green)}.result-empty h3{font-size:15px;color:var(--ink);letter-spacing:-.3px;margin-bottom:8px}.result-empty p{font-size:11px}.result-label{font-size:12px;margin-top:30px;color:var(--green)}.result-number{font-family:Manrope,sans-serif;font-size:53px;letter-spacing:-2px;font-weight:600;line-height:1.1;margin-top:8px;overflow-wrap:anywhere;font-variant-numeric:tabular-nums}.result-unit{font-size:18px;color:var(--green);margin-top:8px}.result-rows{border-top:1px solid #ccdbd0;margin-top:25px;padding-top:10px}.result-row{display:flex;justify-content:space-between;align-items:start;gap:14px;font-size:11px;padding:9px 0}.result-row>span:first-child{color:var(--muted)}.result-row strong{font-weight:600;text-align:right}.formula{margin-top:16px;border:1px solid #c5d6cb;border-radius:9px;background:var(--surface);font-size:11px}.formula summary{cursor:pointer;padding:12px;font-weight:600;min-height:44px}.formula ol{padding:0 25px 14px 30px;margin:0}.formula li{padding-top:8px;line-height:1.6;overflow-wrap:anywhere}.result-warning{font-size:10px;color:var(--warning);background:var(--warn-bg);border-radius:8px;padding:10px;margin-top:12px;line-height:1.5}.result-copy{margin-top:10px;width:100%;border:1px solid #b9cdbf;border-radius:8px;background:var(--surface);font-size:11px}.result-footer{display:flex;gap:10px;border-top:1px solid #cbdacf;padding-top:16px;margin-top:auto;font-size:10px;color:var(--muted);line-height:1.5}.result-footer p{font-size:10px}.result-footer .cross{font-size:20px;color:var(--green)}#result{padding-bottom:20px}.result-error{padding:28px 0;color:#a24132;font-size:12px;line-height:1.6}.clinical-note{display:flex;align-items:center;gap:12px;margin:22px 0 32px;padding:12px 16px;background:#efeee7;border:1px solid #e4e2d6;border-radius:10px;font-size:11px;color:#6d6553}.clinical-note>span{border:1px solid #a39a83;border-radius:50%;width:17px;height:17px;display:grid;place-items:center;flex-shrink:0;font-size:11px}.clinical-note strong{font-weight:600}.library{border-top:1px solid var(--border);padding-top:27px}.section-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:9px}.section-heading .eyebrow{margin-bottom:8px}.section-heading h2{font-size:23px}.library>p{font-size:12px}.search-form{display:flex;gap:10px;margin-top:20px}.search-form input{flex:1;min-width:0;border:1px solid var(--border);border-radius:9px;background:var(--surface);padding:12px 15px;font-size:14px;outline:0}.search-form input:focus{border-color:var(--green)}.primary{background:var(--green);color:white;padding:0 18px;border-radius:9px;font-size:12px;font-weight:600}.primary span{margin-left:18px}.resource-links{display:flex;gap:12px;margin-top:18px}.resource-links a{font-size:11px;border:1px solid var(--border);border-radius:7px;padding:10px 12px;display:flex;gap:25px;background:var(--surface);min-height:44px;align-items:center}.drug-card{border:1px solid var(--border);background:var(--surface);border-radius:10px;padding:16px;margin-top:10px}.drug-card h3{font-size:12px;line-height:1.5;letter-spacing:0}.drug-card p{font-size:11px;color:var(--muted);margin:8px 0}.drug-card a{font-size:11px;font-weight:600}.drug-meta{font-size:10px;color:var(--muted);margin-top:14px}.drug-card .drug-flag{color:var(--warning)}footer{display:flex;justify-content:space-between;align-items:center;margin-top:32px;border-top:1px solid var(--border);padding-top:17px;font-size:11px}footer>span{font-weight:700}footer .muted{font-weight:400;margin-left:8px}.mobile-nav,.mobile-only{display:none}.skip{position:fixed;top:-100px;left:10px;background:var(--surface);padding:15px;z-index:30}.skip:focus{top:10px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}dialog{border:1px solid var(--border);border-radius:18px;background:var(--surface);color:var(--ink);max-width:720px;width:calc(100% - 28px);max-height:85dvh;padding:25px;box-shadow:0 30px 90px #0003}dialog::backdrop{background:#193d335c;backdrop-filter:blur(3px)}.dialog-top{display:flex;justify-content:space-between;gap:15px;align-items:center;position:sticky;top:0;background:var(--surface);padding-bottom:15px;border-bottom:1px solid var(--border)}.dialog-top h2{font-size:21px}#dialog-content{font-size:13px;line-height:1.65}#dialog-content h3{font-size:16px;margin:25px 0 10px}#dialog-content p{margin:12px 0}.source-item{padding:15px 0;border-bottom:1px solid var(--border)}.source-item strong{display:block;font-size:14px}.source-tag{font-size:10px;background:var(--soft);color:var(--green);border-radius:4px;padding:3px 6px}.source-item p{font-size:12px}.source-item a{font-size:12px;text-decoration:underline}.checklist{padding-left:20px}.checklist li{padding:5px 0}#toast{position:fixed;bottom:90px;left:50%;transform:translateX(-50%);background:var(--ink);color:var(--surface);padding:12px 20px;border-radius:10px;z-index:40;font-size:12px;width:max-content;max-width:90vw}.dark{--bg:#142420;--surface:#1e302a;--ink:#e0eae1;--muted:#acbdb2;--border:#3b5145;--green:#94cfb4;--soft:#293e32;--warn-bg:#483823;--warning:#edca8d;color-scheme:dark}.dark .brandmark,.dark .primary{background:#80bda1;color:#10251b}.dark .clinical-note{background:#35352b;border-color:#4a4a3d;color:#d4ceb9}.dark .input-group{border-color:#4c6255}.dark .result-error{color:#f9ab9a}.dark .result-panel{border-color:#45614e}.dark .result-footer,.dark .result-rows{border-color:#45614e}.dark .formula,.dark .result-copy{border-color:#45614e}
@media(max-width:1200px){main{padding:0 28px 25px}.workspace{grid-template-columns:230px 1fr}.input-panel{padding:20px}.result-panel{padding:20px}.calculator{gap:14px}}
@media(max-width:950px){.calculator{grid-template-columns:1fr 1fr}.workspace{grid-template-columns:190px 1fr;gap:16px}.result-number{font-size:43px}.tool{padding:12px 8px;gap:9px}.tool-label{font-size:11px}.tool-icon{width:30px;height:30px;flex-shrink:0}.brand-caption{display:none}.areas{gap:25px}.areas button span{display:none}.input-panel,.result-panel{padding:17px}.intro-note{display:none}}
@media(max-width:730px){html{scroll-padding-top:20px}main{padding:0 18px 100px}.topbar{height:68px;padding:0 20px}.brand{font-size:28px}.brandmark{width:30px;height:32px;font-size:27px}.header-actions{gap:10px}.header-actions .icon-button{border:0;background:transparent}.intro{padding:26px 0 24px}.intro h1{font-size:34px;letter-spacing:-1.3px}.intro h1 br{display:none}.intro h1 span{display:block}.intro .eyebrow{font-size:9px;margin-bottom:11px}.lead{font-size:13px;margin-top:11px}.mobile-only{display:initial}.areas{gap:0;justify-content:space-between;margin-bottom:20px}.areas button{font-size:11px;padding:0 6px 12px;min-height:43px}.workspace{display:block}.tool-panel{margin-bottom:18px}.panel-heading{margin-bottom:6px;font-size:11px}.filters{margin-bottom:10px}.filters button{min-height:36px}.sidebar-tip{display:none}#tools{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:7px}.tool{flex-direction:column;align-items:start;gap:8px;padding:10px;margin:0;border-color:var(--border);background:var(--surface);border-radius:10px;min-height:90px}.tool.active{background:var(--soft);border-color:#82b49d}.tool-icon{font-size:17px;width:26px;height:26px;background:none;place-items:start}.tool-label{font-size:11px;line-height:1.3;letter-spacing:-.2px}.tool-label small{font-size:9px;line-height:1.4;margin-top:4px}.tool-arrow{display:none}.calculator{grid-template-columns:1fr;gap:13px}.input-panel{padding:22px 19px}.calc-heading h2{font-size:23px}.calc-description{margin:10px 0 17px;font-size:12px}.input-group input{font-size:23px;min-height:54px}.input-group select{font-size:14px;min-height:54px}.fixed-unit{font-size:14px}.field>label{font-size:13px}.field-hint{font-size:11px}.text-button{font-size:12px;min-height:44px}.result-panel{padding:22px 19px;min-height:0}.result-empty{padding:22px 0 14px}.result-empty-symbol{display:none}.result-empty h3{font-size:14px}.result-footer p{font-size:11px}.result-label{margin-top:21px}.result-number{font-size:55px}.result-unit{font-size:20px}.result-row{font-size:12px}.formula{font-size:12px}.result-copy{font-size:12px}.result-warning{font-size:11px}.clinical-note{margin:17px 0 27px;align-items:start;font-size:11px;padding:12px}.clinical-note>span{margin-top:3px}.section-heading{display:block}.section-heading h2{font-size:22px}.section-heading>.text-button{margin:7px 0 0}.library{padding-top:23px}.library>p{font-size:12px}.search-form{gap:8px;margin-top:17px}.search-form input{font-size:13px;padding:10px}.primary{padding:0 12px;font-size:11px}.primary span{display:none}.resource-links{display:grid;grid-template-columns:1fr;gap:8px}.resource-links a{justify-content:space-between;font-size:12px}.drug-card h3{font-size:13px}.drug-card p,.drug-card a{font-size:12px}footer{display:block;font-size:10px}footer .text-button{display:block;margin-top:6px}.mobile-nav{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:10;background:var(--surface);border-top:1px solid var(--border);padding:7px 10px calc(7px + env(safe-area-inset-bottom));justify-content:space-around;box-shadow:0 -3px 15px #00000003}.mobile-nav>a,.mobile-nav>button{font-size:21px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;color:var(--green);min-height:45px;min-width:65px;text-decoration:none}.mobile-nav span{font-size:10px;color:var(--muted)}dialog{padding:19px;max-height:89dvh}.dialog-top h2{font-size:18px}.two-fields{gap:10px}.form-actions{margin-top:13px}}
.quick-result{display:none}
.result-number.long-value{font-size:30px;letter-spacing:-1px;white-space:nowrap}
@media(max-width:730px){.quick-result:not([hidden]){display:flex;align-items:center;justify-content:space-between;gap:15px;position:fixed;bottom:calc(66px + env(safe-area-inset-bottom));left:10px;right:10px;z-index:11;min-height:62px;background:var(--green);color:var(--surface);padding:11px 15px;border-radius:12px;box-shadow:0 -3px 20px #0002;text-align:left}.quick-result>span{font-size:11px;line-height:1.3}.quick-result>span small{display:block;opacity:.85;font-size:9px;margin-top:5px}.quick-result strong{font-size:24px;letter-spacing:-.6px;font-weight:600;overflow-wrap:anywhere;text-align:right}.quick-result strong small{font-size:13px;letter-spacing:0}.has-result main{padding-bottom:165px}.dark .quick-result{color:var(--bg)}.filters button{min-height:44px}.areas button{min-height:48px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}