:root{color-scheme:light;--color-ink: #17202a;--color-muted: #5b6472;--color-subtle: #eef2f6;--color-subtle-strong: #dce8ef;--color-paper: #ffffff;--color-canvas: #f7f8fb;--color-teal: #176b61;--color-teal-dark: #0f4f48;--color-teal-soft: #e7f4f1;--color-blue: #315fbd;--color-blue-soft: #eaf0ff;--color-amber: #b7791f;--color-amber-soft: #fff8e8;--color-red: #b42318;--color-green: #27795f;--shadow-soft: 0 16px 44px rgba(23, 32, 42, .08);--shadow-floating: 0 26px 70px rgba(23, 32, 42, .14);--shadow-focus: 0 0 0 4px rgba(49, 95, 189, .16);--radius: 8px;--radius-lg: 12px;--container: 1120px;--space-section: clamp(2.5rem, 6vw, 5rem);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}html{min-width:320px;background:var(--color-canvas)}body{margin:0;color:var(--color-ink);background:var(--color-canvas);line-height:1.6}img,svg{max-width:100%}a{color:var(--color-teal);text-decoration-thickness:.08em;text-underline-offset:.18em}a:hover{color:var(--color-teal-dark)}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:none;box-shadow:var(--shadow-focus)}button,input,select,textarea{font:inherit}.container{width:min(100% - 2rem,var(--container));margin-inline:auto}.skip-link{position:absolute;left:1rem;top:.5rem;z-index:10;transform:translateY(-140%);border-radius:var(--radius);background:var(--color-ink);color:#fff;padding:.55rem .8rem}.skip-link:focus{transform:translateY(0)}.site-header{border-bottom:1px solid #dde5ed;background:#ffffffeb;backdrop-filter:blur(14px);position:sticky;top:0;z-index:20}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:74px;padding-block:.65rem}.brand,.footer-brand{color:var(--color-ink);text-decoration:none}.brand{display:inline-flex;align-items:center;gap:.7rem}.brand-mark{display:grid;width:42px;aspect-ratio:1;place-items:center;border-radius:var(--radius);background:var(--color-teal);color:#fff;font-size:.78rem;font-weight:800}.brand:hover .brand-mark{background:var(--color-teal-dark)}.brand strong,.footer-brand{display:block;font-weight:800;letter-spacing:0}.brand small{display:block;color:var(--color-muted);font-size:.76rem}.site-nav{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:.35rem}.site-nav a{border-radius:var(--radius);color:var(--color-ink);font-weight:700;padding:.55rem .75rem;text-decoration:none}.site-nav a:hover,.site-nav a.active{background:var(--color-subtle)}.site-nav a.active{color:var(--color-teal-dark)}.mobile-nav{display:none}.mobile-nav summary{min-height:42px;border:1px solid #c8d3dd;border-radius:var(--radius);cursor:pointer;font-weight:800;list-style:none;padding:.45rem .8rem}.mobile-nav summary::-webkit-details-marker{display:none}.mobile-nav nav{display:grid;gap:.25rem;margin-top:.5rem}.mobile-nav a{border-radius:var(--radius);color:var(--color-ink);font-weight:800;padding:.6rem .75rem;text-decoration:none}.mobile-nav a.active,.mobile-nav a:hover{background:var(--color-subtle);color:var(--color-teal-dark)}.section{padding-block:var(--space-section)}.section-tight{padding-block:clamp(1.5rem,4vw,3rem)}.hero{padding-block:clamp(2.4rem,6vw,5rem);background:linear-gradient(120deg,#fffffffa,#e7f4f1b3),var(--color-canvas)}.hero-grid,.two-column{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(280px,.95fr);align-items:center;gap:clamp(1.5rem,5vw,4rem)}.eyebrow{margin:0 0 .65rem;color:var(--color-blue);font-size:.83rem;font-weight:800;letter-spacing:0;text-transform:uppercase}h1,h2,h3{line-height:1.15;letter-spacing:0}h1{max-width:12ch;margin:0 0 1rem;font-size:clamp(2.35rem,5vw,4.5rem)}h2{margin:0 0 1rem;font-size:clamp(1.5rem,3vw,2.35rem)}h3{margin:0 0 .65rem;font-size:1.05rem}p{margin:0 0 1rem}.lead{max-width:66ch;color:var(--color-muted);font-size:clamp(1rem,2vw,1.18rem)}.actions{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:1.4rem}.hero-actions{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:1.5rem}.trust-strip{display:flex;flex-wrap:wrap;gap:.5rem;margin:1.2rem 0 0;padding:0;list-style:none}.trust-strip li{border:1px solid #cddfe8;border-radius:999px;background:#ffffffc7;color:var(--color-teal-dark);font-size:.88rem;font-weight:800;padding:.34rem .65rem}.button,button{display:inline-flex;min-height:44px;align-items:center;justify-content:center;border:1px solid transparent;border-radius:var(--radius);background:var(--color-teal);color:#fff;cursor:pointer;font-weight:800;padding:.7rem 1rem;text-decoration:none;transition:background-color .16s ease,border-color .16s ease,transform .16s ease}.button.secondary{border-color:#c8d3dd;background:#fff;color:var(--color-ink)}.button:hover,button:hover{background:var(--color-teal-dark);color:#fff;transform:translateY(-1px)}.button.secondary:hover{background:var(--color-subtle);color:var(--color-ink)}.visual-panel,.card,.calculator-panel,.policy-panel,.tool-finder{border:1px solid #dce4ec;border-radius:var(--radius-lg);background:var(--color-paper);box-shadow:var(--shadow-soft)}.visual-panel{padding:clamp(1rem,3vw,1.5rem)}.visual-panel svg{display:block}.tool-finder{display:grid;grid-template-columns:1fr auto;gap:.8rem;margin-top:1.5rem;padding:1.1rem}.tool-finder label{grid-column:1 / -1;color:var(--color-muted);font-weight:700}.tool-finder select,.field input,.field select,.field textarea{width:100%;min-height:48px;border:1px solid #bdc9d5;border-radius:var(--radius);background:#fff;color:var(--color-ink);padding:.65rem .75rem}.tool-finder select:hover,.field input:hover,.field select:hover,.field textarea:hover{border-color:#8ea6b8}.form-grid{display:grid;gap:1rem}.mode-note{display:grid;gap:.25rem;border:1px solid #cddfe8;border-radius:var(--radius);background:var(--color-blue-soft);color:#1f365f;padding:.8rem}.mode-note strong{color:var(--color-blue)}.field{display:grid;gap:.35rem}.field-group{display:grid;gap:.85rem;min-width:0;border:1px solid #dce4ec;border-radius:var(--radius);background:#fbfdff;padding:.9rem}.field-group legend{color:var(--color-blue);font-size:.84rem;font-weight:900;padding-inline:.25rem;text-transform:uppercase}.field label{font-weight:800}.checkbox-field{display:inline-flex;align-items:center;gap:.55rem;color:var(--color-ink);font-weight:800}.checkbox-field input{width:1.05rem;height:1.05rem;accent-color:var(--color-teal)}.suffix-field{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:.5rem}.form-note{color:var(--color-muted);font-size:.92rem}.error-text{border-radius:var(--radius);background:#fff1f0;color:var(--color-red);font-weight:700;padding:.65rem .75rem}.result-summary{display:block;border-radius:var(--radius);background:var(--color-teal-soft);color:var(--color-teal-dark);font-size:clamp(1.15rem,3vw,1.45rem);font-weight:900;line-height:1.25;margin-bottom:1rem;padding:1rem}.result-list{display:grid;gap:.65rem;margin:0 0 1rem}.result-list div{display:flex;justify-content:space-between;gap:1rem;border-bottom:1px solid #e2e8f0;padding-bottom:.55rem}.result-list dt{color:var(--color-muted);font-weight:700}.result-list dd{margin:0;font-weight:900;text-align:right}.result-actions{display:flex;flex-wrap:wrap;gap:.6rem;margin-bottom:.8rem}.save-status{flex-basis:100%;margin:0}.assumption-summary{border:1px solid #dce4ec;border-radius:var(--radius);background:#fbfdff;margin-top:1rem;padding:.9rem}.assumption-summary h3{margin-bottom:.45rem}.assumption-summary ul{margin:0;padding-left:1.1rem}.room-preview,.wall-preview{margin:1.25rem 0 0}.wall-preview svg{display:block}.room-preview figcaption,.wall-preview figcaption{color:var(--color-muted);font-size:.92rem}.content-stack{display:grid;gap:1.25rem}.content-stack section{scroll-margin-top:96px}.formula-box{border:1px solid #dce4ec;border-radius:var(--radius);background:#fff;padding:1rem}.last-reviewed{color:var(--color-muted);font-size:.92rem;font-weight:800}.faq-list{display:grid;gap:.65rem}.faq-list details{border:1px solid #dce4ec;border-radius:var(--radius);background:#fff;padding:.85rem 1rem}.faq-list summary{cursor:pointer;font-weight:800}.text-link{display:inline-block;margin-top:.9rem;font-weight:800}.card-kicker{color:var(--color-blue);font-size:.78rem;font-weight:900;margin-bottom:.45rem;text-transform:uppercase}.status-pill{display:inline-flex;border:1px solid #d7dfeb;border-radius:999px;color:var(--color-muted);font-size:.82rem;font-weight:800;margin-top:.9rem;padding:.28rem .58rem}.card-grid,.category-grid,.policy-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}.card,.policy-panel{padding:1.15rem}.card{display:flex;min-height:100%;flex-direction:column}.card .tag-list{margin-top:auto}.card .text-link,.card .status-pill{align-self:flex-start}.card p:last-child,.policy-panel p:last-child{margin-bottom:0}.tag-list,.link-list{display:flex;flex-wrap:wrap;gap:.45rem;margin:0;padding:0;list-style:none}.tag-list li{border:1px solid #d3dce5;border-radius:999px;background:#fff;color:var(--color-muted);font-size:.86rem;padding:.25rem .55rem}.category-block{padding-block:1.65rem;border-top:1px solid #dce4ec}.tool-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem;margin:1rem 0 0;padding:0;list-style:none}.tool-list article{height:100%}.breadcrumbs{margin-bottom:1.25rem;color:var(--color-muted);font-size:.92rem}.page-breadcrumb{padding-top:2rem}.breadcrumbs ol{display:flex;flex-wrap:wrap;gap:.35rem;margin:0;padding:0;list-style:none}.breadcrumbs li:not(:last-child):after{content:"/";margin-left:.35rem;color:#8b96a3}.calculator-shell{padding-block:clamp(1.4rem,4vw,3.25rem) var(--space-section)}.calculator-heading{max-width:760px;margin-bottom:1.25rem}.calculator-heading h1{max-width:16ch}.calculator-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(300px,.9fr);align-items:start;gap:1.1rem}.calculator-panel{padding:clamp(1rem,3vw,1.35rem)}.result-panel{position:sticky;top:1rem}.calculator-details{margin-top:1.5rem}.disclaimer-box{border-left:4px solid var(--color-amber);border-radius:var(--radius);background:var(--color-amber-soft);padding:1rem}.disclaimer-box h2{margin-bottom:.4rem;font-size:1.05rem}.site-footer{margin-top:var(--space-section);border-top:1px solid #dce4ec;background:#111827;color:#e5e7eb}.footer-grid{display:grid;grid-template-columns:minmax(0,1.25fr) repeat(3,minmax(150px,.55fr));gap:1.25rem;padding-block:2rem}.site-footer a{display:block;color:#f8fafc}.site-footer h2{margin-bottom:.65rem;font-size:.9rem;text-transform:uppercase}.site-footer p{color:#cbd5e1}.footer-contact{font-size:.92rem}.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding-block:1rem}.footer-bottom p{margin:0;font-size:.9rem}.trust-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}.trust-grid article{border:1px solid #dce4ec;border-radius:var(--radius-lg);background:#fff;padding:1.1rem}.project-board-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}.project-board-card h2{font-size:1.35rem}.guide-standard{margin-top:1rem}.guide-title{max-width:22ch}.key-takeaway{border-left:4px solid var(--color-teal)}.step-list{display:grid;gap:.55rem;margin:0;padding-left:1.25rem}.guide-sidebar{position:sticky;top:96px}@media(max-width:820px){.header-inner,.hero-grid,.two-column,.calculator-grid,.footer-grid,.trust-grid{grid-template-columns:1fr}.header-inner{display:flex;align-items:flex-start}.desktop-nav{display:none}.mobile-nav{display:block;margin-left:auto}.card-grid,.category-grid,.policy-grid,.project-board-grid,.tool-list{grid-template-columns:1fr}.result-panel,.guide-sidebar{position:static}.tool-finder{grid-template-columns:1fr}h1{max-width:13ch}.brand small{display:none}.hero-actions .button,.actions .button,.result-actions .button{width:100%}}@media print{.site-header,.site-footer,.breadcrumbs,.actions{display:none}body{background:#fff}.card,.calculator-panel,.policy-panel,.visual-panel{box-shadow:none}}
