:root{--ink: #1a1d18;--muted: #667064;--green: #3d6b4f;--green-deep: #315b42;--green-soft: #e8f0e1;--line: #dbe5d3;--paper: #fbfdf9;--bg: #f5f8f1;font-family:Segoe UI,Noto Sans SC,sans-serif;color:var(--ink);background:var(--bg);font-synthesis:none}*{box-sizing:border-box}body{margin:0;min-width:320px;background:var(--bg)}button,input,select{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}.app-shell{min-height:100vh}.page-transition{min-height:calc(100vh - 70px)}.page-transition:has(.input-page){height:calc(100vh - 70px);overflow:hidden}.topbar{height:70px;display:flex;align-items:center;padding:0 clamp(20px,5vw,72px);border-bottom:1px solid var(--line);background:#f8faf5f0;position:sticky;top:0;z-index:20;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.brand-cluster{display:flex;align-items:center;gap:10px}.brand-logo-link{display:inline-flex;align-items:center;transition:transform .2s ease,box-shadow .2s ease}.brand-logo-link img{height:34px;width:auto;max-width:110px;object-fit:contain;background:#ffffffe6;padding:3px 7px;border-radius:4px}.brand-logo-link:hover{transform:translateY(-1px)}.brand-mark{border-left:1px solid #abc2aa;padding-left:10px;max-width:min(340px,28vw);font-weight:700;font-size:clamp(.78rem,1.15vw,.95rem);letter-spacing:.01em;line-height:1.25;color:var(--green-deep)}.topbar nav{margin:auto;display:flex;gap:28px}.topbar nav a{color:var(--muted);font-size:.9rem;font-weight:600;position:relative}.topbar nav a.active,.topbar nav a:hover{color:var(--green-deep)}.topbar nav a.active:after{content:"";position:absolute;left:0;right:0;bottom:-10px;height:2px;background:var(--green);border-radius:2px}.settings-trigger{border:0;border-radius:50%;width:38px;height:38px;background:var(--green-soft);color:var(--green-deep);display:grid;place-items:center;transition:.2s}.settings-trigger:hover{background:var(--green);color:#fff;transform:rotate(28deg)}.settings-panel{position:absolute;right:5vw;top:59px;width:245px;padding:18px;background:#fff;border:1px solid var(--line);box-shadow:0 16px 42px #213c2920;border-radius:10px;display:grid;gap:14px}.settings-panel label{display:grid;gap:5px;color:#687164;font-size:.78rem;font-weight:700}.settings-panel select{border:1px solid #cbd8c5;border-radius:5px;padding:7px;background:#fff}.text-button{background:none;border:0;padding:0;text-align:left;color:var(--green);font-size:.82rem;font-weight:700}.page{max-width:1320px;margin:auto;padding:clamp(32px,6vw,86px) clamp(20px,5vw,72px)}.input-page.page{display:flex;flex-direction:column;height:calc(100vh - 70px);max-height:calc(100vh - 70px);padding-top:clamp(18px,2.8vw,32px);padding-bottom:18px;overflow:hidden;box-sizing:border-box}.input-page .page-heading{flex:0 0 auto}.input-page .page-heading h1{font-size:clamp(1.8rem,3.2vw,2.6rem)}.input-page .page-heading p:not(.eyebrow){margin:8px 0 16px}.input-page .safari-tabbar{flex:0 0 auto;margin-bottom:14px}.input-page .form-shell{flex:1 1 0;height:auto;min-height:0;max-height:none}.input-page .form-actions{flex:0 0 auto;margin-top:14px;padding:10px 0 2px;background:linear-gradient(180deg,transparent 0%,var(--bg) 28%);z-index:3}.eyebrow{margin:0 0 14px;color:#4f7a58;letter-spacing:.15em;font-size:.75rem;font-weight:800}.hero{min-height:calc(100vh - 156px);display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:52px}.hero-brands{display:flex;gap:18px;align-items:center;margin-bottom:22px}.hero-brands .brand-logo-link img{height:42px;max-width:none}.hero h1{font-size:clamp(2.6rem,5.2vw,4.8rem);line-height:1.05;letter-spacing:-.045em;max-width:720px;margin:0;color:#193d29}.hero-subtitle{max-width:520px;color:#5c6759;font-size:1.15rem;line-height:1.7;margin:28px 0 34px}.hero-actions,.form-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.button{border-radius:6px;padding:13px 20px;display:inline-flex;gap:10px;align-items:center;justify-content:center;font-weight:750;border:1px solid transparent;transition:.2s transform,.2s box-shadow,.2s background}.button:hover{transform:translateY(-2px);box-shadow:0 9px 22px #315b4224}.primary{background:var(--green);color:#fff}.ghost{background:transparent;color:var(--green-deep);border-color:#aabdac}.danger{border-color:#dfb3a8;color:#a64738;background:#fff8f6}.hero-art{background:linear-gradient(160deg,#d7e6cc,#e8f0e1 45%,#c9d9bc);height:480px;position:relative;overflow:hidden;isolation:isolate}.hero-art:before,.hero-art:after{content:"";position:absolute;border:1px solid #a7c29f;border-radius:50%;width:520px;height:520px;top:-210px;right:-150px;opacity:.55}.hero-art:after{width:340px;height:340px;top:-90px;right:-40px}.road{position:absolute;bottom:0;width:100%;height:122px;background:#5d735e;transform:skewY(-9deg) translateY(36px)}.vehicle{position:absolute;width:260px;height:125px;bottom:84px;left:18%;background:var(--green);border-radius:12px 22px 7px 7px;box-shadow:0 16px 18px #1b372144;animation:drive 4.5s ease-in-out infinite alternate}.vehicle:before{content:"";position:absolute;width:105px;height:73px;right:-53px;bottom:0;border-radius:12px 23px 7px 0;background:#557f60}.vehicle b{position:absolute;width:56px;height:43px;right:-35px;top:18px;background:#b7d4d3;border-radius:7px 18px 3px 3px}.vehicle i{position:absolute;width:38px;height:38px;background:#1c2b20;border:7px solid #eff5eb;border-radius:50%;bottom:-20px;left:33px}.vehicle i:nth-child(2){left:191px}@keyframes drive{0%{transform:translate(0)}to{transform:translate(28px)}}.about{margin-top:20px;padding:42px 0;border-top:1px solid #d6e1ce;display:grid;grid-template-columns:minmax(180px,280px) 1fr;gap:36px;align-items:start}.about h2{font-size:2rem;margin:0;color:#244a32}.about-text{color:var(--muted);line-height:1.75;margin:0}.about-text h3{margin:0 0 12px;color:#244a32;font-size:1.35rem}.about-text h4{margin:18px 0 8px;color:#315b42;font-size:1.05rem}.about-text p{margin:0 0 12px}.about-text ol{margin:0 0 12px;padding-left:1.25rem}.about-text a{color:var(--green-deep);text-decoration:underline}.page-heading h1{font-size:clamp(2.3rem,4vw,3.7rem);margin:0;letter-spacing:-.055em;color:#234630}.page-heading p:not(.eyebrow){color:#6a7367;margin:12px 0 28px}.safari-tabbar{display:flex;align-items:flex-end;gap:10px;margin-bottom:22px}.safari-tabs-track{display:flex;align-items:flex-end;gap:4px;flex:1;min-width:0;min-height:44px;overflow-x:auto;overflow-y:hidden;overscroll-behavior-x:contain;scrollbar-gutter:stable;padding-bottom:0;scroll-behavior:smooth}.safari-tab{position:relative;display:inline-flex;align-items:center;gap:8px;min-width:132px;max-width:200px;height:38px;padding:0 12px 0 16px;border-radius:10px 10px 0 0;background:#e3ecdb;color:#627063;font-size:.86rem;font-weight:700;cursor:pointer;overflow:hidden;border:1px solid transparent;border-bottom:0;flex:0 0 auto}.safari-tab.active{background:#fff;color:var(--green-deep);z-index:2;box-shadow:0 -2px 12px #315b4210}.safari-tab-glow{position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(180deg,#f7fbf4,#fff 70%);z-index:-1}.safari-tab-label{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}.safari-tab-close{width:18px;height:18px;border:0;border-radius:50%;background:transparent;color:#7d8a79;display:grid;place-items:center;opacity:0;transform:scale(.85);transition:.15s ease;flex:0 0 auto}.safari-tab:hover .safari-tab-close,.safari-tab.active .safari-tab-close{opacity:1;transform:scale(1)}.safari-tab-close:hover{background:#e8ece4;color:#3a4338}.safari-add{display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 14px;border:1px dashed #a7bfa5;border-radius:999px;background:#f3f8ef;color:var(--green-deep);font-size:.82rem;font-weight:750;margin-bottom:4px;flex:0 0 auto}.safari-add:hover{background:var(--green-soft);border-color:var(--green)}.view-switcher{display:flex;gap:5px;flex-wrap:wrap;border-bottom:1px solid #d2dfcb;margin-bottom:28px}.view-switcher button{border:0;color:#687164;padding:12px 15px;background:transparent;font-size:.86rem;font-weight:700;border-bottom:2px solid transparent}.view-switcher button.active{color:var(--green-deep);border-color:var(--green);background:#eaf2e5}.form-shell{background:#fff;border:1px solid var(--line);display:grid;grid-template-columns:250px minmax(0,1fr);grid-template-rows:minmax(0,1fr);box-shadow:0 14px 36px #3658370c;border-radius:0 12px 12px;overflow:hidden}.form-shell>*{min-width:0;min-height:0}.steps{margin:0;align-self:stretch;justify-self:stretch;width:100%;height:100%;max-height:100%;padding:10px 0;border-right:1px solid #e4ebdf;display:flex;flex-direction:column;background:linear-gradient(180deg,#f7faf4,#fff);overflow-x:auto;overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;scrollbar-gutter:stable}.steps button{border:0;border-right:3px solid transparent;background:transparent;padding:10px 12px 10px 14px;display:flex;align-items:center;gap:10px;text-align:left;color:#687164;font-weight:650;width:max(100%,190px);min-width:190px;flex:0 0 auto;box-sizing:border-box;transition:background .18s ease,color .18s ease,border-color .18s ease}.steps button .step-icon{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;background:#e7efe2;color:#6f846c;flex:0 0 auto}.steps button .step-copy{display:grid;gap:2px;font-size:.86rem;min-width:0;line-height:1.25}.steps button b{color:#91a990;font-size:.68rem;letter-spacing:.08em}.steps button.active{background:#eff5eb;color:var(--green-deep);border-right-color:var(--green)}.steps button.active .step-icon{background:var(--green);color:#fff}.step-content{position:relative;overflow:hidden}.scenario-slide{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;min-height:0}.scenario-stage{flex:1 1 auto;min-height:0;overflow-x:hidden;overflow-y:auto;overscroll-behavior:contain;scroll-behavior:smooth;padding:28px 34px 48px;-webkit-overflow-scrolling:touch}.param-stack{display:flex;flex-direction:column;gap:28px}.param-section{scroll-margin-top:16px;padding-bottom:24px;border-bottom:1px solid #e6eee1}.param-section:last-child{border-bottom:0;padding-bottom:8px}.param-section-head{display:flex;align-items:center;gap:10px;margin-bottom:18px}.param-section-head h2{margin:0;font-size:1.15rem;color:var(--green-deep)}.step-heading-icon{color:var(--green);flex:0 0 auto}.results-stage{position:relative;overflow:hidden;min-height:360px}.results-slide{width:100%}.fields{display:grid;gap:18px}.fields.four{grid-template-columns:repeat(auto-fill,minmax(180px,1fr))}.fields.three{grid-template-columns:repeat(auto-fill,minmax(200px,1fr))}.fields.two{grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}.fancy-field{display:grid;gap:8px;position:relative}.fancy-label{display:inline-flex;align-items:center;gap:6px;color:#65705f;font-size:.78rem;font-weight:750}.fancy-trigger,.fancy-input{color:#243127;padding:12px 14px;border:1px solid #cfdbca;border-radius:10px;background:var(--paper);outline:none;transition:border-color .18s ease,box-shadow .18s ease,background .18s ease}.fancy-trigger{width:100%;display:flex;align-items:center;justify-content:space-between;gap:10px;text-align:left;font-weight:600}.fancy-trigger.open,.fancy-trigger:focus-visible,.fancy-input:focus{border-color:#4f7a58;box-shadow:0 0 0 3px #3d6b4f18}.fancy-menu{position:absolute;left:0;right:0;top:calc(100% + 6px);z-index:30;margin:0;padding:6px;list-style:none;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 16px 36px #213c2922;max-height:240px;overflow:auto}.fancy-menu li{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 12px;border-radius:8px;cursor:pointer;color:#2d3830;font-weight:600;font-size:.9rem}.fancy-menu li:hover{background:#eef5ea}.fancy-menu li.selected{background:#e4f0de;color:var(--green-deep)}.fancy-field.is-disabled .fancy-trigger,.fancy-field.is-disabled .fancy-input{color:#95a094;background:#f0f3ee;cursor:not-allowed}.form-actions{margin-top:24px;justify-content:flex-end}.loading{min-height:60vh;display:grid;place-items:center;align-content:center;color:var(--green-deep);gap:14px}.spinner{width:38px;height:38px;border:4px solid #d4e2cc;border-top-color:var(--green);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.chart-pair h2,.chart-section h2{margin:0 0 28px;font-size:1.2rem;color:var(--green-deep);display:flex;align-items:center;gap:10px}.chart-pair,.chart-section{background:#fff;border:1px solid var(--line);padding:25px;margin-bottom:20px;border-radius:12px}.chart-pair{display:grid;grid-template-columns:repeat(2,1fr);column-gap:26px}.chart-pair h2{grid-column:1 / -1;margin-bottom:0}.chart{min-height:300px;width:100%}.chart.large{min-height:430px}.chart-section h2 span{color:#879385;font-size:.82rem;font-weight:600}@media(max-width:800px){.topbar{padding:0 18px}.topbar nav{display:none}.hero{grid-template-columns:1fr;min-height:unset}.hero-art{height:340px;order:-1}.about{grid-template-columns:1fr;gap:15px}.input-page.page{height:auto;max-height:none;overflow:visible;padding:36px 18px 24px}.form-shell{grid-template-columns:1fr;grid-template-rows:auto minmax(240px,48vh);height:auto;min-height:0;flex:0 0 auto}.input-page .form-shell{flex:0 0 auto}.steps{flex-direction:row;flex-wrap:nowrap;height:auto;max-height:none;border-right:0;border-bottom:1px solid #e4ebdf;padding:0;overflow-x:auto;overflow-y:hidden}.steps button{padding:12px 8px;font-size:.72rem;flex:0 0 auto;min-width:108px;width:auto;flex-direction:column;align-items:flex-start;border-right:0;border-bottom:3px solid transparent}.steps button.active{border-right-color:transparent;border-bottom-color:var(--green)}.scenario-stage{padding:20px 18px 28px}.input-page .form-actions{position:sticky;bottom:0}.fields.four,.fields.three,.fields.two{grid-template-columns:1fr}.chart-pair{display:block}.page{padding:36px 18px}.safari-tabbar{flex-direction:column;align-items:stretch}.safari-add{align-self:flex-start}}