@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;650;700&family=Manrope:wght@400;500;600;650;700;750;800&display=swap');
:root{color-scheme:light;--navy:#111d35;--navy-light:#20314d;--text:#18253a;--muted:#6c7789;--blue:#3157d5;--blue-dark:#294bbc;--lime:#c3f06b;--line:#e4e8ef;--bg:#f6f8fc;--white:#fff;--radius:15px;font-family:'DM Sans',system-ui,sans-serif;color:var(--text);font-size:16px}
*{box-sizing:border-box}body{margin:0;background:var(--bg)}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default}a{color:inherit}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid #89a0fa;outline-offset:3px}button{color:inherit}button svg{flex-shrink:0}button[hidden],[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;top:-80px;left:20px;z-index:30;background:white;padding:14px;border-radius:8px}.skip-link:focus{top:12px}.app-shell{display:grid;grid-template-columns:244px minmax(0,1fr);min-height:100vh}.sidebar{background:var(--navy);color:#adbad0;padding:36px 18px 24px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh;overflow:auto}.brand{font-family:Manrope,system-ui,sans-serif;color:white;display:flex;align-items:center;font-size:25px;font-weight:800;letter-spacing:-1.1px;text-decoration:none;padding:0 12px;margin-bottom:53px}.brand>span:not(.brand-mark):not(.brand-period){font-weight:500}.brand-period{color:var(--lime)}.brand-mark{color:var(--navy);background:var(--lime);width:34px;height:34px;border-radius:8px;display:grid;place-items:center;font-size:26px;margin-right:10px;letter-spacing:0}.sidebar-label{font-size:11px;font-weight:650;letter-spacing:1.2px;padding:0 12px;margin-bottom:18px;color:#8393ad}nav{display:grid;gap:5px}.category-btn{width:100%;background:none;border:0;padding:12px 11px;display:flex;gap:11px;align-items:center;font-size:14px;text-align:left;color:#b6c3d8;border-radius:8px;line-height:1.4}.category-btn:hover{background:#1b2a45;color:white}.category-btn.active{background:#293b55;color:white}.category-btn.active .nav-icon{color:var(--lime)}.nav-icon{width:21px;height:21px;display:inline-flex;align-items:center;justify-content:center;color:#8fa1be;flex-shrink:0}.category-btn .count{margin-left:auto;font-size:12px;font-variant-numeric:tabular-nums;color:#899ab6}.category-btn.active .count{background:#425166;color:#e6eedd;padding:1px 6px;border-radius:4px}.nav-divider{height:1px;background:#2b3850;margin:11px 10px}.sidebar-bottom{border-top:1px solid #2b3850;margin:30px 10px 0;padding-top:24px;display:flex;gap:12px}.sidebar-mini{width:26px;flex-shrink:0;font-family:Georgia,serif;color:var(--lime);font-size:29px}.sidebar-bottom strong{font-size:13px;color:#d6dfed;font-weight:500}.sidebar-bottom p{font-size:12px;line-height:1.7;color:#8495b0;margin:7px 0 0}.page{min-width:0}.topbar{height:78px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 42px;background:rgba(255,255,255,.65);font-size:13px}.location{display:flex;gap:16px;color:#7b8697}.location>span{color:#bbc3cf}.location strong{font-weight:500;color:#45536b}.topbar-note{color:#7c8798}main{max-width:1610px;margin:0 auto;padding:37px 42px 24px}.page-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:28px}.eyebrow{font-size:11px;letter-spacing:1.7px;font-weight:700;color:#69807f;margin-bottom:10px}h1,h2,h3,p{margin-top:0}h1{font-family:Manrope,system-ui,sans-serif;font-size:34px;line-height:1.3;letter-spacing:-1.3px;font-weight:800;margin-bottom:9px}.title-dot{color:var(--blue)}.page-heading p{color:var(--muted);font-size:15px;margin:0;line-height:1.6}.library-stat{border-left:1px solid #dce2ec;padding-left:27px;display:flex;gap:12px;align-items:center}.library-stat strong{font-family:Manrope,sans-serif;letter-spacing:-1.5px;font-size:38px;font-weight:750;color:var(--blue)}.library-stat span{font-size:12px;line-height:1.6;color:#7b8798}.search-bar{background:var(--white);border:1px solid #dfe5ee;border-radius:11px;display:flex;align-items:center;padding:0 17px;height:58px;box-shadow:0 3px 10px #17294703;margin-bottom:29px;gap:12px}.search-bar:focus-within{border-color:#8fa6f5;box-shadow:0 0 0 3px #3157d50c}.search-icon{font-size:27px;line-height:1;color:#8190a7}.search-bar input{width:100%;min-width:0;border:0;outline:none!important;background:transparent;font-size:15px;color:var(--text);height:100%}.search-bar input::placeholder{color:#8994a7}.search-bar kbd{border:1px solid #e2e6ef;background:#f9fafc;border-radius:5px;font-family:inherit;font-size:12px;color:#7d899b;padding:4px 8px}.clear-search{border:0;background:none;color:#64758b;font-size:25px;line-height:1;width:30px}.workspace{display:grid;grid-template-columns:minmax(0,1fr) 400px;gap:28px;align-items:start}.directory{min-width:0}.directory-heading{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:20px}.directory-heading>div{display:flex;align-items:center;gap:10px}.directory-heading h2{font-size:17px;font-weight:650;letter-spacing:-.3px;margin:0}.directory-heading>div>span{font-size:12px;color:#7b8799;background:#eaf0f7;border-radius:5px;padding:4px 7px;white-space:nowrap}.sort-label{color:#7b8798;font-size:12px;white-space:nowrap}.sort-label select{background:transparent;border:0;font-size:12px;color:#445068;max-width:126px;cursor:pointer;padding:4px}.calculator-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.calculator-card{position:relative;text-align:left;border:1px solid var(--line);background:white;border-radius:12px;padding:19px 19px 16px;min-height:177px;transition:transform .16s,border-color .16s,box-shadow .16s;display:flex;flex-direction:column;overflow:hidden}.calculator-card:hover{border-color:#aabaf0;box-shadow:0 6px 20px #3157d510;transform:translateY(-2px)}.calculator-card.selected{border:1px solid #5270dd;background:#fcfdff;box-shadow:0 0 0 2px #3157d509}.card-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:13px}.card-icon{width:34px;height:34px;border-radius:9px;background:var(--tint);color:var(--accent);display:grid;place-items:center}.card-icon svg{width:18px;height:18px}.card-category{color:#7e899a;font-size:11px;text-align:right;line-height:1.4;margin-left:8px}.calculator-card h3{font-family:Manrope,sans-serif;font-size:15px;letter-spacing:-.25px;font-weight:750;margin:0 0 7px;line-height:1.45}.calculator-card p{font-size:13px;line-height:1.6;color:#7b8598;margin:0}.card-foot{padding-top:14px;display:flex;align-items:center;gap:6px;font-size:11px;color:#8a97ad;margin-top:auto}.card-foot svg{width:13px;height:13px}.selected-badge{font-size:10px;color:var(--blue);background:#edf1ff;padding:3px 6px;border-radius:4px;margin-left:auto}.calculator-panel{background:white;border:1px solid #dee5ee;border-radius:var(--radius);position:sticky;top:24px;min-width:0;overflow:hidden;box-shadow:0 7px 28px #17294705}.panel-header{padding:25px 25px 21px;border-bottom:1px solid #e8ecf2}.panel-tag{color:var(--blue);font-size:11px;font-weight:650;letter-spacing:.6px;display:flex;align-items:center;gap:7px;margin-bottom:15px;text-transform:uppercase}.panel-tag svg{width:15px;height:15px}.panel-title{display:flex;align-items:flex-start;justify-content:space-between;gap:10px}.panel-title h2{font-family:Manrope,sans-serif;letter-spacing:-.8px;font-size:23px;line-height:1.4;margin:0 0 9px;font-weight:750}.panel-desc{font-size:14px;color:#7b8598;line-height:1.7;margin:0}.panel-icon{display:grid;place-items:center;color:var(--blue);width:39px;height:39px;flex-shrink:0;border-radius:10px;background:#eff3ff}.panel-icon svg{width:22px;height:22px}.calculator-form{padding:21px 25px 0}.input-toolbar{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:20px}.input-toolbar>span{font-size:13px;font-weight:650}.text-btn{border:0;background:none;font-size:12px;padding:0;color:var(--blue);font-weight:500;text-decoration:underline;text-underline-offset:3px}.field{margin-bottom:16px}.field label{font-size:14px;color:#48536a;font-weight:500;display:block;margin-bottom:8px;line-height:1.5}.input-wrap{position:relative;display:flex;align-items:center;border:1px solid #dfe5ed;background:#fcfdff;border-radius:8px;overflow:hidden}.input-wrap:focus-within{border-color:#6583e8;box-shadow:0 0 0 3px #3157d50b}.input-affix{padding:0 12px;color:#9aa6b8;font-size:14px;background:#f6f8fc;align-self:stretch;display:flex;align-items:center;border-right:1px solid #e6ebf2;min-width:38px;justify-content:center}.input-wrap input{width:100%;min-width:0;border:0;outline:none!important;background:transparent;padding:12px;font-size:16px;font-variant-numeric:tabular-nums;color:#243450}.input-wrap input::placeholder{color:#a4adbd}.input-wrap textarea{width:100%;border:0;outline:none!important;padding:12px;resize:vertical;min-height:84px;background:transparent;font-size:14px;line-height:1.6;color:#243450}.input-wrap select{width:100%;border:0;background:transparent;padding:12px;color:#243450}.field-hint{font-size:12px;line-height:1.6;color:#8994a7;margin-top:6px}.example-label{font-size:12px;background:#eef4ff;color:#52679b;padding:10px 12px;border-radius:7px;line-height:1.6;margin-bottom:18px}.form-actions{display:flex;gap:9px;margin:18px 0 21px}.calculate-btn{width:100%;padding:12px;border:0;border-radius:8px;background:var(--blue);color:white;font-weight:600;font-size:14px;box-shadow:0 4px 8px #3157d516}.calculate-btn:hover{background:var(--blue-dark)}.reset-btn{padding:12px 13px;border:1px solid #dfe5ed;border-radius:8px;background:white;font-size:14px;color:#6e7b90}.result-block{margin:0 25px 23px;border-radius:10px;background:var(--navy);color:white;padding:21px 21px 18px;min-height:136px;position:relative;overflow:hidden}.result-block:after{content:'';position:absolute;right:-35px;top:-35px;width:130px;height:130px;border:1px solid #445272;border-radius:50%;pointer-events:none;opacity:.4}.result-label{display:flex;justify-content:space-between;align-items:center;gap:6px;font-size:12px;font-weight:500;color:#bcc9df;position:relative;z-index:1}.copy-btn{background:none;color:#c0cee8;border:0;padding:4px;display:grid;place-items:center}.copy-btn svg{width:16px;height:16px}.result-value{font-family:Manrope,system-ui,sans-serif;font-size:33px;line-height:1.4;letter-spacing:-1px;font-weight:750;margin:9px 0 7px;overflow-wrap:anywhere;position:relative;z-index:1;font-variant-numeric:tabular-nums;color:var(--lime)}.result-caption{font-size:12px;color:#95a6c3;line-height:1.6;margin:0;position:relative;z-index:1}.result-empty .result-value{font-size:22px;color:#d4deed;margin:15px 0 8px;letter-spacing:-.5px}.result-block.error{background:#fff2f1;border:1px solid #f3d7d5}.result-block.error .result-label{color:#a04848}.result-block.error .result-value{color:#ab3636;font-size:18px;letter-spacing:0}.result-block.error .result-caption{color:#a35252}.result-details{padding:0 25px 21px}.result-row{display:flex;justify-content:space-between;align-items:baseline;gap:15px;padding:11px 0;border-bottom:1px solid #edf0f5;font-size:13px;color:#728097;line-height:1.55}.result-row strong{color:#35465f;font-weight:500;text-align:right;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}.formula-section{border-top:1px solid var(--line);padding:18px 25px 22px;background:#fcfdff}.formula-section summary{cursor:pointer;display:flex;align-items:center;justify-content:space-between;font-size:13px;font-weight:600;list-style:none}.formula-section summary::-webkit-details-marker{display:none}.formula-section summary:after{content:'+';font-size:18px;color:#8591a5}.formula-section details[open] summary:after{content:'−'}.formula{font-family:'DM Sans',system-ui,sans-serif;background:#f0f3f9;color:#50627d;font-size:13px;line-height:1.8;border-radius:7px;padding:12px;margin-top:13px;overflow-wrap:anywhere;white-space:pre-wrap}.formula-note{font-size:12px;color:#7d8b9f;line-height:1.8;margin:11px 0 0}.formula-note a{color:#4e6bab;text-underline-offset:3px}.calculation-table-wrap{overflow:auto;margin-top:12px;max-height:320px}.calculation-table{border-collapse:collapse;width:100%;font-size:12px;white-space:nowrap}.calculation-table th,.calculation-table td{text-align:right;padding:8px;border-bottom:1px solid #e5eaf2;font-variant-numeric:tabular-nums}.calculation-table th{font-weight:600;color:#60738e;background:#f4f6fb;position:sticky;top:0}.calculation-table th:first-child,.calculation-table td:first-child{text-align:left}.active-filters{font-size:13px;display:flex;align-items:center;justify-content:space-between;padding:10px 0 16px;color:#72829b;gap:12px}.filter-reset{border:0;background:#eaf0ff;border-radius:5px;font-size:12px;padding:5px 9px;color:#4665ba}.empty-state{grid-column:1/-1;background:white;border:1px dashed #d4ddec;border-radius:12px;padding:40px 25px;text-align:center}.empty-state h3{font-size:18px}.empty-state p{font-size:14px;color:#7d8a9e;line-height:1.7}.directory-footer{display:flex;align-items:center;gap:12px;padding:25px 0 6px;color:#778699}.directory-footer p{font-size:12px;line-height:1.7;margin:0}.directory-footer span:not(.small-logo){color:#99a4b4}.small-logo{font-size:23px;color:#aab7ca}.footer{border-top:1px solid var(--line);font-size:12px;color:#8b98ac;line-height:1.7;margin-top:28px;padding-top:18px;display:flex;justify-content:space-between;gap:15px}.mobile-category{display:none}.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:var(--navy);color:white;border-radius:9px;padding:13px 21px;box-shadow:0 5px 25px #17294725;z-index:40;font-size:14px}.noscript{padding:20px;background:#fff7dc}.panel-mobile-close{display:none}
@media(min-width:1680px){.workspace{grid-template-columns:minmax(0,1fr) 420px;gap:32px}.calculator-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.calculator-card{min-height:185px}.sidebar{padding-top:37px}.app-shell{grid-template-columns:250px minmax(0,1fr)}}
@media(max-width:1280px){.app-shell{grid-template-columns:217px minmax(0,1fr)}.brand{font-size:23px}.topbar{padding:0 28px}main{padding:30px 28px 24px}.workspace{grid-template-columns:minmax(0,1fr) 350px;gap:20px}.calculator-grid{gap:12px}.calculator-card{padding:16px;min-height:185px}.card-category{font-size:10px}.page-heading h1{font-size:30px}.library-stat{padding-left:18px}.library-stat strong{font-size:33px}.library-stat span{font-size:11px}.directory-heading{align-items:flex-start}.directory-heading>div{display:block}.directory-heading>div>span{display:inline-block;margin-top:7px}.panel-header,.calculator-form,.formula-section{padding-left:21px;padding-right:21px}.result-block{margin-left:21px;margin-right:21px}.result-details{padding-left:21px;padding-right:21px}.category-btn{font-size:13px;padding:11px 9px}}
@media(max-width:1080px){.app-shell{grid-template-columns:196px minmax(0,1fr)}.sidebar{padding-left:12px;padding-right:12px}.brand{font-size:21px;padding:0 8px}.brand-mark{width:30px;height:30px;margin-right:8px;font-size:23px}.category-btn{font-size:12px;gap:8px}.sidebar-label{font-size:10px;padding-left:8px}.sidebar-bottom{margin-left:6px;margin-right:6px}.workspace{grid-template-columns:minmax(0,1fr) 330px;gap:20px}.calculator-grid{grid-template-columns:1fr}.calculator-card{min-height:144px}.card-top{margin-bottom:9px}.card-foot{padding-top:11px}.card-category{font-size:11px}.page-heading h1{font-size:28px}.library-stat{display:none}.topbar-note{display:none}.page-heading p{font-size:14px}}
@media(max-width:820px){.app-shell{display:block}.sidebar{position:static;height:auto;padding:19px 24px;display:block}.brand{margin:0;padding:0;font-size:24px}.brand-mark{width:32px;height:32px}.sidebar-label,.sidebar nav,.sidebar-bottom{display:none}.topbar{display:none}main{padding:28px 24px 20px}.page-heading{margin-bottom:23px}.page-heading h1{font-size:30px}.page-heading p{font-size:14px}.search-bar{margin-bottom:16px}.mobile-category{display:flex;align-items:center;gap:12px;margin-bottom:25px;font-size:14px;color:#6d7d94}.mobile-category select{background:white;border:1px solid #dce3ee;border-radius:8px;padding:10px 12px;min-width:0;width:100%;color:#344b6a}.workspace{display:block}.calculator-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.calculator-card{min-height:173px}.directory-heading>div{display:flex}.directory-heading>div>span{margin:0}.calculator-panel{position:static;margin-top:25px}.calculator-panel:focus{outline:none}.panel-mobile-close{display:inline-block;border:1px solid #dce3ee;background:white;padding:6px 9px;border-radius:5px;margin-bottom:15px;font-size:12px;color:#6c7f99}.panel-title h2{font-size:26px}.calculator-form{padding-top:24px}.result-value{font-size:38px}.footer{display:block}.footer span{display:block}.directory-footer{display:none}.directory.mobile-hidden{display:none}.calculator-panel.mobile-hidden{display:none}.panel-header,.calculator-form,.formula-section{padding-left:25px;padding-right:25px}.result-block{margin-left:25px;margin-right:25px}.result-details{padding-left:25px;padding-right:25px}}
@media(max-width:440px){.sidebar{padding:18px 20px}main{padding:26px 18px 18px}h1,.page-heading h1{font-size:27px;letter-spacing:-1px}.eyebrow{font-size:10px}.page-heading p{font-size:13px}.search-bar{height:55px;padding:0 13px}.search-bar input{font-size:14px}.search-bar kbd{display:none}.directory-heading h2{font-size:16px}.directory-heading>div{gap:7px;flex-wrap:wrap}.directory-heading>div>span{font-size:11px}.sort-label{font-size:11px}.sort-label select{max-width:112px;font-size:11px}.calculator-card{padding:15px 13px;min-height:183px}.calculator-card h3{font-size:14px}.calculator-card p{font-size:12px}.card-category{font-size:10px}.card-icon{width:28px;height:28px;border-radius:7px}.card-icon svg{width:16px;height:16px}.card-foot{font-size:10px}.card-foot>span.selected-badge{font-size:9px}.panel-header,.calculator-form,.formula-section{padding-left:20px;padding-right:20px}.result-block{margin-left:20px;margin-right:20px}.result-details{padding-left:20px;padding-right:20px}.result-value{font-size:32px}.panel-title h2{font-size:24px}.panel-desc{font-size:14px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* Keep working labels and calculator descriptions readable at every viewport. */
.category-btn,.calculator-card p,.text-btn,.input-toolbar>span,.input-wrap select,.result-label,.result-row,.formula-section summary,.formula,.sort-label,.sort-label select,.filter-reset,.panel-mobile-close{font-size:0.875rem}
.page-heading p,.panel-desc{font-size:1rem}
.card-category,.card-foot,.directory-heading>div>span,.field-hint,.example-label,.result-caption,.formula-note{font-size:0.8125rem}