:root{font-family:Arial,Helvetica,sans-serif;color:#18333a;background:#f6f7f4;font-size:16px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0}button,input,select{font:inherit}button{cursor:pointer}a{color:inherit}.wrap{max-width:1180px;margin:auto;padding-left:24px;padding-right:24px}.site-header{border-bottom:1px solid #dce3df;background:#fff}.header-inner{height:70px;display:flex;justify-content:space-between;align-items:center}.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-size:18px;font-weight:900;letter-spacing:-.06em;color:#173b46}.brand-light{font-weight:400}.brand-mark{width:30px;display:grid;gap:3px}.brand-mark span{height:5px;background:#173b46;display:block}.brand-mark span:nth-child(2){width:80%}.brand-mark span:nth-child(3){width:60%}nav{display:flex;gap:32px}nav a{text-decoration:none;font-size:14px;font-weight:700}nav a:hover,.footer-inner a:hover{text-decoration:underline}.intro{padding-top:51px;padding-bottom:29px}.eyebrow,.section-number{font-size:12px;font-weight:800;letter-spacing:.15em;color:#66828a}.intro h1{font-family:Georgia,serif;font-size:clamp(42px,5vw,67px);letter-spacing:-.055em;font-weight:400;line-height:1.04;margin:13px 0}.intro p{color:#5e7275;font-size:17px;line-height:1.5;margin:0;max-width:650px}.workspace{display:grid;grid-template-columns:minmax(0,1.48fr) minmax(310px,1fr);gap:20px;align-items:start}.panel{background:#fff;border:1px solid #dce3df;box-shadow:0 9px 26px rgba(16,52,60,.035)}.editor{padding:29px}.panel-heading{display:flex;justify-content:space-between;align-items:start;gap:14px}.panel h2{font-family:Georgia,serif;font-size:29px;font-weight:400;letter-spacing:-.035em;margin:9px 0 24px}.segmented{display:flex;background:#edf2f1;padding:3px;white-space:nowrap}.segmented button{border:0;background:transparent;padding:8px 12px;color:#62797b;font-size:13px;font-weight:700}.segmented .active{background:#fff;color:#173b46;box-shadow:0 1px 3px #d1dbd8}.row-head{display:flex;justify-content:space-between;gap:8px;padding:14px 0;border-top:1px solid #e2e8e5;font-size:14px}.row-head span{color:#7a8b8b}.area{border:1px solid #dce4e0;padding:18px;margin-bottom:12px}.area-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:17px}.area-title{display:flex;align-items:center;gap:10px}.area-index{display:grid;place-items:center;width:27px;height:27px;background:#dce8e8;color:#1b5660;font-weight:800;font-size:13px}.area-name{border:0;border-bottom:1px solid transparent;outline:0;min-width:0;width:165px;font-weight:800;color:#173b46;background:transparent}.area-name:focus{border-color:#173b46}.remove{border:0;background:none;color:#737e7d;text-decoration:underline;font-size:13px}.area-controls{display:grid;grid-template-columns:145px 1fr;gap:12px}.dimensions{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.field label{display:block;font-size:13px;font-weight:800;margin:0 0 7px;color:#314d52}.field input,.field select{width:100%;height:43px;border:1px solid #cbd8d5;background:#fff;border-radius:0;padding:0 10px;min-width:0;color:#18333a}.field input:focus,.field select:focus{outline:2px solid #b7d9dc;outline-offset:1px}.field small{display:block;color:#7a8b8b;font-size:12px;line-height:1.35;margin-top:6px}.area-subtotal{text-align:right;font-size:12px;color:#597278;margin-top:13px;font-weight:700}.add-button{width:100%;height:43px;background:#f5f9f8;border:1px dashed #a8bebb;color:#1d5660;font-size:14px;font-weight:800}.add-button span{font-size:20px;vertical-align:-1px;margin-right:3px}.settings{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:25px;padding-top:22px;border-top:1px solid #e2e8e5}.input-suffix,.input-prefix{position:relative}.input-suffix span,.input-prefix span{position:absolute;top:12px;color:#7a8b8b}.input-suffix span{right:12px}.input-prefix span{left:12px}.input-prefix input{padding-left:26px}.optional{font-weight:400;color:#8b9998}.result{padding:29px;background:#173b46;color:#fff;position:sticky;top:20px}.result .section-number{color:#91b5b8}.result h2{color:#fff}.hero-result{background:#28535b;padding:21px;margin-top:8px}.hero-result>span{display:block;color:#c8d9d9;font-size:14px}.hero-result small{font-size:12px;color:#adc4c5}.hero-result>div{display:flex;align-items:baseline;gap:8px;margin-top:12px}.hero-result strong{font-family:Georgia,serif;font-weight:400;font-size:clamp(45px,5vw,62px);letter-spacing:-.06em;line-height:1}.hero-result>div span{font-size:20px;color:#d7e6e5}.result-grid{display:grid;grid-template-columns:1fr 1fr;gap:0;margin-top:22px}.result-grid>div{padding:14px 0;border-bottom:1px solid #46636a}.result-grid>div:nth-child(odd){padding-right:8px}.result-grid span{display:block;color:#adc4c5;font-size:12px;margin-bottom:6px}.result-grid strong{font-size:18px;font-weight:700}.breakdown{margin-top:22px}.breakdown h3{font-size:14px;margin:0 0 11px}.breakdown-row{display:flex;justify-content:space-between;color:#d2e0de;border-bottom:1px solid #46636a;padding:8px 0;font-size:13px}.breakdown-row strong{color:#fff}.result-actions{display:flex;gap:9px;margin-top:25px}.result-actions button{flex:1;min-height:40px;border:1px solid #a8c2c2;background:transparent;color:#fff;font-size:13px;font-weight:800}.result-actions button:first-child{background:#e8f1ed;color:#173b46;border-color:#e8f1ed}.fine-print{font-size:12px;line-height:1.5;color:#a8c0c1;margin:19px 0 0}.ad-shell{height:124px;margin-top:30px;margin-bottom:92px;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#a2aeac;border:1px dashed #d6dfdb;background:#f9faf8}.ad-shell span{font-size:10px;letter-spacing:.17em}.ad-shell p{font-size:12px;margin:9px 0 0}.guide{display:grid;grid-template-columns:285px 1fr;gap:60px;margin-bottom:84px}.guide-heading h2,.faq h2{font-family:Georgia,serif;font-size:37px;font-weight:400;letter-spacing:-.045em;line-height:1.1;margin:14px 0}.guide-heading p{color:#667979;line-height:1.55}.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.guide-grid article{border-top:2px solid #173b46;padding-top:15px}.guide-grid article span{font-size:12px;color:#7a9295;font-weight:800}.guide-grid h3{font-size:17px;margin:16px 0 9px}.guide-grid p{font-size:14px;color:#667979;line-height:1.55;margin:0}.formula{grid-column:2;border:1px solid #dce3df;padding:19px 22px;background:#fff;display:flex;justify-content:space-between;gap:15px;align-items:center}.formula span{font-size:11px;letter-spacing:.13em;color:#799093;font-weight:800}.formula strong{font-size:14px}.faq{display:grid;grid-template-columns:285px 1fr;gap:60px;margin-bottom:95px}.faq-list details{border-top:1px solid #d2ddda}.faq-list details:last-child{border-bottom:1px solid #d2ddda}.faq-list summary{cursor:pointer;padding:18px 26px 18px 0;font-size:16px;font-weight:700;list-style:none;position:relative}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:'+';position:absolute;right:3px;font-size:22px;font-weight:400;top:13px}.faq-list details[open] summary:after{content:'−'}.faq-list p{line-height:1.6;color:#667979;margin:0 30px 19px 0;font-size:14px}footer{background:#e9efec;border-top:1px solid #dce4df}.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:15px;min-height:82px;font-size:13px;color:#687e7d}.footer-inner a{text-decoration:none;font-weight:700}.footer-brand{font-size:15px}@media(max-width:900px){.workspace{grid-template-columns:1fr}.result{position:static}.guide,.faq{grid-template-columns:1fr;gap:18px}.formula{grid-column:1}}@media(max-width:620px){.wrap{padding-left:17px;padding-right:17px}.header-inner{height:62px}nav{gap:15px}nav a{font-size:12px}nav a:nth-child(2){display:none}.brand{font-size:16px}.intro{padding-top:34px}.intro p{font-size:15px}.editor,.result{padding:18px}.panel-heading{align-items:flex-start}.panel h2{font-size:25px}.segmented button{padding:8px}.row-head span{display:none}.area-controls{grid-template-columns:1fr}.dimensions{gap:8px}.settings{grid-template-columns:1fr 1fr}.settings .field:last-child{grid-column:span 2}.guide-grid{grid-template-columns:1fr}.formula{display:block}.formula strong{display:block;margin-top:10px}.ad-shell{margin-bottom:70px}.footer-inner{flex-wrap:wrap;padding-top:20px;padding-bottom:20px}.footer-inner span:nth-child(2){order:3;width:100%}}@media print{header,nav,.intro,.ad-shell,.guide,.faq,footer,.add-button,.remove,.result-actions{display:none!important}.workspace{display:block}.panel{box-shadow:none}.result{color:#000;background:#fff}.result *{color:#000!important}.editor{display:none}.result{border:0}}

.brand-icon{display:block;width:32px;height:32px;flex:none}.brand-word{white-space:nowrap}