:root{--ink:#173b47;--muted:#6a8189;--teal:#0d726e;--mint:#d8eee8;--cream:#f7f8f2;--line:#e2e9e7;--orange:#ef9162;--white:#fff;--shadow:0 18px 44px rgba(24,66,68,.09)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fbfcf8;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,'Apple SD Gothic Neo','Malgun Gothic',sans-serif;line-height:1.55}button,input,select,textarea{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}.shell{width:min(1180px,calc(100% - 48px));margin-inline:auto}.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip{position:absolute;left:12px;top:-60px;z-index:100;padding:10px 16px;background:#fff}.skip:focus{top:12px}
.topbar{position:relative;z-index:10;background:#fff;border-bottom:1px solid #edf0e9}.topbar-inner{height:76px;display:flex;align-items:center;gap:36px}.brand{display:inline-flex;align-items:center;gap:10px;white-space:nowrap;font-size:21px;font-weight:800;letter-spacing:-1.3px}.brand-mark{width:34px;height:34px;border-radius:11px;display:grid;place-items:center;background:var(--teal);color:#fff;font-family:Arial,sans-serif;font-size:28px;font-weight:500;line-height:1}.brand-accent{color:var(--teal)}.topnav{display:flex;gap:30px;margin-left:auto;font-size:13px;font-weight:700;color:#5e747a}.topnav a:hover{color:var(--teal)}.header-badge{border:1px solid #d8e7df;border-radius:99px;padding:7px 13px;background:#f5faf7;font-size:11px;color:var(--teal);font-weight:700;white-space:nowrap}
.hero{overflow:hidden;background:linear-gradient(112deg,#e9f4ec 0%,#eaf4ee 52%,#dae9e3 100%)}.hero-inner{min-height:385px;display:flex;align-items:center;justify-content:space-between;position:relative;padding-block:52px}.hero-copy{z-index:1}.eyebrow,.section-kicker{margin:0 0 14px;font-size:10px;font-weight:800;letter-spacing:2px;color:var(--teal)}.eyebrow{display:flex;align-items:center;gap:9px}.eyebrow-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--orange)}h1,h2,h3,p{margin-top:0}h1{margin-bottom:18px;font-size:clamp(42px,5vw,65px);line-height:1.18;letter-spacing:-4px;font-weight:800}h1 em{font-style:normal;color:var(--teal)}.hero-description{max-width:460px;margin-bottom:25px;color:#5d777a;font-size:15px;line-height:1.9}.hero-description strong{color:var(--ink)}.hero-stats{display:flex;align-items:center;gap:16px;color:#547278;font-size:12px;font-weight:600}.hero-stats b{color:var(--teal);font-size:15px}.hero-stats i{height:12px;border-left:1px solid #bdd5cd}.hero-art{width:430px;height:300px;position:relative;flex:none}.orbit{position:absolute;left:50%;top:50%;border:1px solid rgba(25,111,105,.13);border-radius:50%;transform:translate(-50%,-50%)}.orbit-one{width:310px;height:310px}.orbit-two{width:430px;height:430px}.art-center{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:154px;height:154px;border-radius:42px;display:flex;align-items:center;justify-content:center;flex-direction:column;background:var(--teal);box-shadow:0 22px 36px rgba(22,108,100,.24);color:#fff;rotate:-5deg}.art-center span{font-size:58px;line-height:1;font-weight:800;letter-spacing:-4px}.art-center small{font-size:9px;letter-spacing:2px;font-weight:700}.hero-tile{position:absolute;z-index:1;display:flex;align-items:center;gap:8px;border-radius:16px;background:#fff;padding:12px 16px;box-shadow:0 13px 26px rgba(22,75,72,.11);color:var(--ink);font-weight:800}.hero-tile span{font-size:22px;color:var(--teal)}.hero-tile small{font-size:12px}.tile-percent{left:28px;top:23px;transform:rotate(-9deg)}.tile-date{right:0;top:38px;transform:rotate(8deg)}.tile-money{right:26px;bottom:18px;transform:rotate(-8deg)}
.search-section{padding-block:64px 90px;scroll-margin-top:30px}.section-intro{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:25px}.section-intro h2,.guide-header h2,.faq-intro h2{margin:0 0 5px;font-size:30px;letter-spacing:-1.8px}.section-intro p:not(.section-kicker),.guide-header>p:last-child{margin:0;font-size:13px;color:var(--muted)}.count-pill{white-space:nowrap;border:1px solid #d8e9e0;background:#eef7ef;color:var(--teal);padding:7px 14px;border-radius:99px;font-size:12px;font-weight:800}.search-box{height:58px;display:flex;align-items:center;gap:13px;background:#fff;border:1px solid #d6e2db;border-radius:15px;padding:0 17px;box-shadow:0 8px 24px rgba(24,67,60,.045)}.search-box:focus-within{border-color:var(--teal);box-shadow:0 0 0 3px rgba(13,114,110,.12)}.search-icon{font-family:Arial,sans-serif;font-size:28px;line-height:1;color:var(--teal);transform:rotate(-25deg)}.search-box input{width:100%;border:0;outline:0;background:transparent;color:var(--ink);font-size:15px}.search-box input::placeholder{color:#9caeaa}.search-box kbd{min-width:24px;text-align:center;border:1px solid #dbe6e2;border-radius:5px;color:#a5b8b1;font-size:12px}.filters{display:flex;gap:8px;overflow-x:auto;padding:20px 0 24px;scrollbar-width:none}.filters::-webkit-scrollbar{display:none}.filter-button{flex:none;border:1px solid #dce7e2;background:#fff;border-radius:99px;padding:8px 14px;color:#668081;font-size:12px;font-weight:700;transition:.2s}.filter-button:hover{border-color:var(--teal);color:var(--teal)}.filter-button.active{background:var(--ink);border-color:var(--ink);color:#fff}.filter-button span{margin-right:5px}.content-grid{display:grid;grid-template-columns:minmax(0,1fr) 330px;align-items:start;gap:26px}.catalog-head{display:flex;align-items:center;justify-content:space-between;margin:0 0 15px}.catalog-head h3{margin:0;font-size:17px;letter-spacing:-.5px}.catalog-head span{color:#9aabaa;font-size:12px}.calculator-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:11px}.calculator-card{min-width:0;min-height:110px;display:flex;align-items:flex-start;gap:13px;text-align:left;background:#fff;border:1px solid #e3eae5;border-radius:15px;padding:17px 15px;transition:transform .18s,border .18s,box-shadow .18s}.calculator-card:hover{transform:translateY(-2px);border-color:#9bc9b6;box-shadow:0 8px 20px rgba(32,89,75,.08)}.calculator-card.selected{border-color:var(--teal);box-shadow:0 0 0 2px rgba(13,114,110,.11)}.card-icon{display:grid;place-items:center;flex:none;width:37px;height:37px;border-radius:11px;background:#edf6f1;color:var(--teal);font-size:18px;font-weight:800}.card-body{min-width:0}.card-body strong{display:block;margin:0 0 4px;font-size:13px;letter-spacing:-.2px}.card-body small{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:#809698;font-size:11px;line-height:1.55}.empty-state{text-align:center;background:#fff;border:1px dashed var(--line);padding:50px 15px;border-radius:15px;color:var(--muted)}
.workbench{position:sticky;top:22px;background:#fff;border:1px solid #deebe4;border-radius:20px;padding:23px;box-shadow:var(--shadow)}.workbench-top{display:flex;justify-content:space-between;align-items:start;gap:10px}.tool-label{display:block;margin-bottom:8px;color:var(--teal);font-size:10px;font-weight:800;letter-spacing:1.7px}.workbench h3{margin:0;font-size:20px;line-height:1.35;letter-spacing:-.9px}.icon-button{border:0;background:#f0f6f1;color:var(--teal);width:34px;height:34px;border-radius:10px;font-size:23px;line-height:1}.workbench-description{color:#7b9191;font-size:12px;line-height:1.7;margin:10px 0 20px}.field{display:block;margin-bottom:13px}.field-name{display:block;margin-bottom:6px;color:#425f61;font-size:12px;font-weight:700}.input-wrap{display:flex;align-items:center;position:relative}.field input,.field select{width:100%;height:42px;min-width:0;padding:0 13px;border:1px solid #dce7e2;border-radius:9px;outline:0;background:#fbfdfa;color:var(--ink);font-size:14px}.field input:focus,.field select:focus{border-color:var(--teal);box-shadow:0 0 0 3px rgba(13,114,110,.1)}.field input[type=number]{padding-right:48px}.field-unit{position:absolute;right:12px;color:#98a9a7;font-size:11px;pointer-events:none}.calculate-button{width:100%;display:flex;justify-content:space-between;align-items:center;margin-top:18px;padding:13px 16px;border:0;border-radius:10px;background:var(--teal);color:#fff;font-size:13px;font-weight:800;transition:background .15s}.calculate-button:hover{background:#075c59}.calculate-button span{font-size:18px}.result-card{margin-top:18px;border-radius:12px;background:#eaf6ed;padding:16px}.result-card>span{display:block;color:#66847b;font-size:11px;font-weight:700}.result-card strong{display:block;margin:2px 0;font-size:25px;line-height:1.35;word-break:break-word;color:#0b6b61;letter-spacing:-.7px}.result-card small{color:#78918b;font-size:11px}.error-message{margin:12px 0 0;color:#b04d32;font-size:12px}.workbench-note{border-top:1px solid #ebf0ec;margin:17px 0 0;padding-top:12px;color:#90a09e;font-size:11px;line-height:1.6}.share-button{width:100%;margin-top:15px;background:transparent;border:0;color:var(--teal);font-size:12px;font-weight:800;text-align:left;padding:0}.share-button:hover{text-decoration:underline}
.guide-section{background:#eff5ef;padding:65px 0 70px}.guide-header{text-align:center;margin-bottom:27px}.guide-header h2{font-size:28px}.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.guide-grid article{min-height:150px;padding:23px 25px;background:#fff;border:1px solid #e1eae3;border-radius:16px}.guide-grid span{color:var(--orange);font-weight:800;font-size:13px}.guide-grid h3{margin:15px 0 5px;font-size:15px}.guide-grid p{color:#829695;font-size:12px;margin:0;line-height:1.7}.faq-section{display:grid;grid-template-columns:250px 1fr;gap:50px;padding-block:75px}.faq-intro h2{font-size:28px}.faq-list{border-top:1px solid #dae5df}.faq-list details{border-bottom:1px solid #dae5df}.faq-list summary{list-style:none;padding:18px 35px 18px 0;position:relative;cursor:pointer;font-size:13px;font-weight:700}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary::after{content:'+';position:absolute;right:4px;top:14px;color:var(--teal);font-size:22px;font-weight:400}.faq-list details[open] summary::after{content:'−'}.faq-list p{font-size:12px;color:var(--muted);line-height:1.8;margin:0;padding:0 30px 18px 0}.footer{background:#16353c;color:#d5e5e0;padding:42px 0 18px}.footer-inner{display:flex;justify-content:space-between;gap:30px}.footer-brand{font-size:19px;color:#fff}.footer-brand .brand-mark{background:#2d847d}.footer-brand .brand-accent{color:#a2dfc5}.footer-inner p{font-size:11px;color:#9ab5b0;margin:12px 0 0}.footer-links{display:flex;align-items:start;gap:18px;font-size:11px;color:#c8dcd7}.footer-links a:hover{text-decoration:underline}.footer-bottom{margin-top:36px;padding-top:16px;border-top:1px solid #376067;font-size:10px;color:#8fafaa}
@media(max-width:980px){.hero-art{width:350px;transform:scale(.85);transform-origin:right center}.content-grid{grid-template-columns:minmax(0,1fr) 300px;gap:16px}.workbench{padding:18px}.calculator-card{padding:14px 11px}.faq-section{grid-template-columns:200px 1fr;gap:20px}}
@media(max-width:760px){.shell{width:min(100% - 32px,600px)}.topbar-inner{height:65px}.topnav{display:none}.header-badge{margin-left:auto}.hero-inner{min-height:340px;padding-block:45px}.hero-art{position:absolute;right:-160px;opacity:.23}.hero-copy{max-width:100%}h1{font-size:46px;letter-spacing:-3px}.hero-description{max-width:340px}.hero-stats{gap:10px;font-size:11px}.search-section{padding-block:44px 60px}.section-intro h2{font-size:25px}.content-grid{display:flex;flex-direction:column}.catalog-area,.workbench{width:100%}.workbench{position:static;order:-1;margin-bottom:8px}.calculator-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.guide-grid{grid-template-columns:1fr}.guide-grid article{min-height:auto}.faq-section{grid-template-columns:1fr;gap:18px;padding-block:55px}.footer-inner{flex-direction:column}.footer-links{flex-wrap:wrap}}
@media(max-width:440px){.brand{font-size:18px}.brand-mark{width:31px;height:31px}.header-badge{font-size:10px;padding:6px 9px}.hero-inner{min-height:325px}.hero-description{font-size:13px}.count-pill{display:none}.calculator-card{min-height:105px;padding:12px 10px;gap:8px}.card-icon{width:30px;height:30px;font-size:16px}.card-body strong{font-size:12px}.card-body small{font-size:10px}.section-intro h2{font-size:22px}}
.calculator-card{min-height:120px}.card-title{display:block;margin-bottom:4px;font-size:13px;font-weight:800;letter-spacing:-.2px}.card-title:hover{color:var(--teal);text-decoration:underline}.card-quick{display:block;margin-top:7px;padding:0;border:0;background:transparent;color:var(--teal);font-size:10px;font-weight:800}.card-quick:hover{text-decoration:underline}
@media(max-width:440px){.card-title{font-size:12px}}

.field textarea{width:100%;min-height:118px;padding:14px 16px;border:1px solid #dce8e3;border-radius:10px;background:#fff;color:#173b47;font:inherit;resize:vertical;box-sizing:border-box}
.field textarea:focus{outline:2px solid #117c77;outline-offset:2px}

/* Keep search and the first tools visible without making the landing area crowded. */
.hero-inner{min-height:310px;padding-block:34px}.search-section{padding-top:42px}.hero-art{transform:scale(.82);transform-origin:right center}
@media(max-width:760px){.hero-inner{min-height:240px;padding-block:25px}.hero-art{display:none}.search-section{padding-top:30px}}