:root{color-scheme:light;--bg: #f6f7f5;--surface: #ffffff;--ink: #1f2b33;--ink-soft: #52616b;--line: #d8ddda;--tape: #2e6fb0;--tape-deep: #22598f;--tape-wash: #e6eff8;--ok: #2f7a4f;--error: #b3261e;--paint-wall: #9db8a4;--paint-ceiling: #f1efe8;--paint-trim: #f0cf72;--paint-primer: #c4cacd;--can: #e9ecee;--can-lid: #d3d9dc;--display: "Bricolage Grotesque", "Segoe UI", system-ui, sans-serif;--body: "Atkinson Hyperlegible", "Segoe UI", system-ui, sans-serif;--r-sm: 6px;--r-md: 10px;--gutter: clamp(16px, 4vw, 40px)}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.55 var(--body)}h1,h2,h3{font-family:var(--display);line-height:1.1;margin:0;font-weight:700}a{color:var(--tape-deep);text-underline-offset:3px}:focus-visible{outline:3px solid var(--tape);outline-offset:2px;border-radius:4px}button,input,select,textarea{font:inherit;color:inherit}small{font-size:.84rem;color:var(--ink-soft)}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.skip{position:absolute;inset-inline-start:8px;top:8px;background:var(--ink);color:#fff;padding:8px 12px;z-index:10;transform:translateY(-300%)}.skip:focus{transform:none}.wrap{max-width:1180px;margin:0 auto;padding:0 var(--gutter)}.site-header{border-bottom:1px solid var(--line);background:var(--surface)}.header-row{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:60px;flex-wrap:wrap}.brand{font-family:var(--display);font-weight:800;font-size:1.35rem;color:var(--ink);text-decoration:none;background:linear-gradient(var(--tape),var(--tape)) left 88% / 100% 5px no-repeat;padding-bottom:2px}.site-header nav{display:flex;gap:20px;flex-wrap:wrap}.site-header nav a{color:var(--ink-soft);text-decoration:none;font-size:.95rem}.site-header nav a:hover{color:var(--ink);text-decoration:underline}.intro{padding-top:clamp(28px,6vw,64px);padding-bottom:28px}.intro h1{font-size:clamp(2.1rem,6vw,3.9rem);font-weight:800;letter-spacing:-.02em;max-width:16ch}.lede{font-size:1.12rem;color:var(--ink-soft);max-width:60ch;margin:18px 0 0}.estimator{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,440px);gap:clamp(20px,3vw,40px);align-items:start;padding-bottom:56px}@media (max-width: 900px){.estimator{grid-template-columns:1fr}}fieldset{border:0;padding:0;margin:0;min-width:0}legend{font-family:var(--display);font-weight:700;font-size:1.15rem;margin-bottom:12px;padding:0}.model-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}.model{display:grid;grid-template-rows:auto auto 1fr;gap:4px;text-align:start;cursor:pointer;background:var(--surface);border:1.5px solid var(--line);border-radius:var(--r-md);padding:14px}.model:hover{border-color:var(--ink-soft)}.model[aria-pressed=true]{border-color:var(--tape);box-shadow:inset 0 0 0 1.5px var(--tape);background:var(--tape-wash)}.model-icon svg{width:34px;height:34px;color:var(--tape-deep)}.model-name{font-weight:700}.model-blurb{font-size:.84rem;color:var(--ink-soft);line-height:1.35}.sections{margin-top:26px;border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line)}summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding:16px 2px;font-family:var(--display);font-weight:700;font-size:1.08rem}summary::-webkit-details-marker{display:none}summary:after{content:"";width:9px;height:9px;border-right:2px solid var(--ink-soft);border-bottom:2px solid var(--ink-soft);transform:rotate(45deg) translateY(-3px);flex:none;margin-inline-start:4px}details[open] summary:after{transform:rotate(-135deg) translateY(-2px)}.sum{font-family:var(--body);font-weight:400;font-size:.9rem;color:var(--ink-soft);margin-inline-start:auto;text-align:end}details[open] .sum{visibility:hidden}.fields{display:grid;gap:18px;padding:2px 2px 22px}.field{display:grid;gap:6px}.field>span:first-child{font-weight:700;display:flex;justify-content:space-between;gap:8px}output{font-weight:400;color:var(--tape-deep)}.pair{display:grid;grid-template-columns:1fr 1fr;gap:14px}@media (max-width: 520px){.pair{grid-template-columns:1fr}}.always{margin:0;color:var(--ink-soft);font-size:.95rem}select,input[type=number],input:not([type]),input[type=email],textarea{width:100%;background:var(--surface);border:1.5px solid var(--line);border-radius:var(--r-sm);padding:10px 12px;min-height:44px}select:hover,input:hover,textarea:hover{border-color:var(--ink-soft)}input[type=range]{width:100%;accent-color:var(--tape);min-height:32px}.stepper{direction:ltr;display:grid;grid-template-columns:44px minmax(0,96px) 44px}.stepper input{text-align:center;border-radius:0;border-left:0;border-right:0;-moz-appearance:textfield}.stepper input::-webkit-inner-spin-button{-webkit-appearance:none}.stepper button{border:1.5px solid var(--line);background:var(--surface);font-size:1.2rem;cursor:pointer}.stepper button:first-child{border-radius:var(--r-sm) 0 0 var(--r-sm)}.stepper button:last-child{border-radius:0 var(--r-sm) var(--r-sm) 0}.stepper button:hover{background:var(--tape-wash)}.segmented{display:inline-flex;flex-wrap:wrap;border:1.5px solid var(--line);border-radius:var(--r-sm);background:var(--surface);width:fit-content;max-width:100%}.segmented button{border:0;background:none;padding:9px 14px;min-height:42px;cursor:pointer;border-inline-end:1px solid var(--line)}.segmented button:last-child{border-inline-end:0}.segmented button[aria-checked=true]{background:var(--ink);color:#fff}.toggle{display:flex;align-items:center;gap:12px;cursor:pointer;width:fit-content}.toggle input{appearance:none;width:42px;height:24px;border-radius:12px;background:var(--line);position:relative;cursor:pointer;flex:none;margin:0;transition:background .15s}.toggle input:after{content:"";position:absolute;top:3px;inset-inline-start:3px;width:18px;height:18px;border-radius:50%;background:#fff;transition:transform .15s;box-shadow:0 1px 2px #00000040}.toggle input:checked{background:var(--tape)}.toggle input:checked:after{transform:translate(18px)}.results{position:sticky;top:16px;background:var(--surface);border:1.5px solid var(--ink);border-radius:var(--r-md);overflow:hidden}@media (max-width: 900px){.results{position:static}}.cans-panel{padding:22px 22px 18px;border-bottom:1.5px solid var(--ink)}.cans-total{margin:0;display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}.cans-total strong{font-family:var(--display);font-weight:800;font-size:clamp(3rem,8vw,4.4rem);line-height:.9;letter-spacing:-.03em}.cans-total span{font-size:1.05rem;color:var(--ink-soft)}.can-row{display:flex;flex-wrap:wrap;gap:2px 0;margin:16px 0 6px;min-height:30px}.can svg{width:22px;height:27px;display:block}.can-more{align-self:center;font-weight:700;margin-inline-start:6px;color:var(--ink-soft)}.paint-list{list-style:none;margin:10px 0 0;padding:0}.paint-list li{display:grid;grid-template-columns:18px 1fr auto;gap:10px;align-items:start;padding:9px 0;border-top:1px dashed var(--line)}.chip{width:18px;height:18px;border-radius:3px;border:1px solid rgb(31 43 51 / .25);margin-top:3px}.paint-name,.paint-buy{display:grid}.paint-name{font-weight:700}.paint-name small,.paint-buy small{font-weight:400}.paint-buy{text-align:end;font-weight:700}.geo{margin:10px 0 0;font-size:.86rem;color:var(--ink-soft)}.tabs{display:grid;grid-template-columns:1fr 1fr;border-bottom:1px solid var(--line)}.tabs button{border:0;background:var(--bg);padding:14px 10px;font-weight:700;cursor:pointer;border-bottom:3px solid transparent}.tabs button[aria-selected=true]{background:var(--surface);border-bottom-color:var(--tape);color:var(--tape-deep)}.panel{padding:20px 22px 22px}.figures{display:grid;grid-template-columns:1fr 1fr;gap:14px}.figures div{display:grid;gap:2px}.figures strong{font-family:var(--display);font-size:1.7rem;font-weight:800;line-height:1.05}.figures span{font-size:.84rem;color:var(--ink-soft)}.note{font-size:.9rem;color:var(--ink-soft);margin:14px 0 0}.list-title{font-size:1.1rem;margin-top:22px}.disclosure{font-size:.8rem;color:var(--ink-soft);margin:4px 0 8px}.shop{list-style:none;margin:0;padding:0}.shop li{display:grid;grid-template-columns:30px 1fr auto;gap:12px;align-items:center;padding:10px 0;border-top:1px solid var(--line)}.shop li.optional{opacity:.8}.shop-icon svg{width:28px;height:28px;color:var(--ink-soft)}.shop-text{display:grid;gap:1px;min-width:0}.shop-name b{color:var(--tape-deep)}.shop-name em{font-style:normal;font-size:.8rem;color:var(--ink-soft);border:1px solid var(--line);border-radius:4px;padding:0 5px;margin-inline-start:4px}.shop-text small{line-height:1.35}.shop-link{display:inline-flex;align-items:center;gap:5px;white-space:nowrap;font-weight:700;font-size:.86rem;text-decoration:none;padding:8px 10px;border:1.5px solid var(--tape);border-radius:var(--r-sm);color:var(--tape-deep)}.shop-link:hover{background:var(--tape-wash)}.shop-link svg{width:14px;height:14px}.pro-range{margin:0;display:grid;gap:4px}.pro-range strong{font-family:var(--display);font-weight:800;font-size:clamp(2rem,6vw,2.6rem);line-height:1;letter-spacing:-.02em}.pro-range>span{color:var(--ink-soft);font-size:.92rem}.breakdown{width:100%;border-collapse:collapse;margin-top:18px;font-size:.95rem}.breakdown caption{text-align:start;font-weight:700;padding-bottom:6px}.breakdown th{text-align:start;font-weight:400;padding:7px 0;border-top:1px solid var(--line)}.breakdown td{text-align:end;padding:7px 0;border-top:1px solid var(--line);font-variant-numeric:tabular-nums}.money{margin:16px 0 0;display:grid;gap:0}.money div{display:flex;justify-content:space-between;padding:6px 0;border-top:1px solid var(--line)}.money dt{color:var(--ink-soft)}.money dd{margin:0;font-variant-numeric:tabular-nums}.money .total{border-top:1.5px solid var(--ink);font-weight:700}.money .total dt{color:var(--ink)}.button{display:inline-block;margin-top:18px;background:var(--tape);color:#fff;border:0;border-radius:var(--r-sm);padding:13px 20px;font-weight:700;text-decoration:none;cursor:pointer;min-height:46px}.button:hover{background:var(--tape-deep)}.button:disabled{opacity:.6;cursor:wait}.share{display:block;width:100%;border:0;border-top:1px solid var(--line);background:var(--bg);padding:12px;cursor:pointer;color:var(--ink-soft);font-size:.9rem}.share:hover{color:var(--ink);text-decoration:underline}.quote{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.4fr);gap:clamp(20px,4vw,56px);padding-top:48px;padding-bottom:64px;border-top:1px solid var(--line)}@media (max-width: 800px){.quote{grid-template-columns:1fr}}.quote h2{font-size:clamp(1.7rem,4vw,2.4rem);font-weight:800}.quote-copy p{color:var(--ink-soft);max-width:42ch}#quote-form{display:grid;gap:16px}.consent{display:grid;grid-template-columns:22px 1fr;gap:10px;font-size:.9rem;color:var(--ink-soft);cursor:pointer}.consent input{width:20px;height:20px;margin:2px 0 0;accent-color:var(--tape)}.form-msg{margin:0;min-height:1.5em;font-weight:700}.form-msg.error{color:var(--error)}.form-msg.ok{color:var(--ok)}#quote-form .button{margin-top:0;justify-self:start}.site-footer{background:var(--ink);color:#cfd7dc;padding:28px 0;font-size:.9rem}.site-footer a{color:#fff}.site-footer p{margin:0 0 8px;max-width:75ch}.article{max-width:720px;padding-top:40px;padding-bottom:64px}.article h1{font-size:clamp(2rem,5vw,3rem);font-weight:800;letter-spacing:-.02em}.article h2{font-size:1.45rem;margin-top:36px}.article p,.article li{max-width:68ch}.article table{width:100%;border-collapse:collapse;margin:16px 0;font-size:.95rem}.article th,.article td{text-align:start;padding:9px 8px;border-top:1px solid var(--line)}.article thead th{border-top:0;border-bottom:1.5px solid var(--ink)}.callout{background:var(--tape-wash);border-inline-start:4px solid var(--tape);padding:16px 18px;border-start-end-radius:var(--r-sm);border-end-end-radius:var(--r-sm);margin:24px 0}.mini{position:fixed;left:12px;right:12px;bottom:12px;z-index:5;display:flex;align-items:center;justify-content:space-between;gap:12px;background:var(--ink);color:#fff;text-decoration:none;border-radius:var(--r-md);padding:12px 14px;font-size:.92rem;box-shadow:0 6px 20px #1f2b334d}.mini b{font-family:var(--display);font-size:1.15rem}.mini-go{flex:none;background:var(--tape);border-radius:var(--r-sm);padding:7px 10px;font-weight:700}@media (min-width: 901px){.mini{display:none!important}}.mini[hidden]{display:none}.hp{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}#place-note{display:block;margin-top:-6px}.pro-range .cur{font-family:var(--body);font-size:1rem;font-weight:700;letter-spacing:0;color:var(--ink-soft)}[hidden]{display:none!important}.audience{display:inline-grid;grid-template-columns:1fr 1fr;margin-bottom:22px;padding:4px;gap:4px;background:var(--surface);border:1.5px solid var(--line);border-radius:999px;width:min(100%,420px)}.audience button{border:0;background:none;border-radius:999px;padding:10px 14px;min-height:44px;font-weight:700;cursor:pointer;color:var(--ink-soft)}.audience button:hover{color:var(--ink)}.audience button[aria-checked=true]{background:var(--ink);color:#fff}.panel-title{font-size:1.35rem}.qfields{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:14px}.qfields.two{grid-template-columns:1fr 1fr}.qfields .field>span:first-child{font-size:.9rem}.qfields small{line-height:1.3}.q-cust{margin-top:12px}@media (max-width: 420px){.qfields,.qfields.two{grid-template-columns:1fr 1fr}.qfields .field:first-child{grid-column:1 / -1}}.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}.actions .button{margin-top:0}.button.ghost{background:var(--surface);color:var(--tape-deep);border:1.5px solid var(--tape)}.button.ghost:hover{background:var(--tape-wash)}.supplies{margin-top:18px;border-top:1px solid var(--line);border-bottom:0}.supplies summary{font-size:1rem}#join-form{display:grid;gap:16px}#join-form .button{margin-top:0;justify-self:start}.form-msg:empty{min-height:0}.lang-pick{position:relative;display:inline-flex;align-items:center;gap:4px;color:var(--ink-soft)}.lang-pick svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.6;flex:none}.lang-pick select{border:0;background:none;padding:4px 2px;min-height:0;width:auto;font-size:.95rem;color:var(--ink-soft);cursor:pointer}.lang-pick select:hover{color:var(--ink)}.lang-pick:focus-within{color:var(--ink)}[dir=rtl] .toggle input:checked:after{transform:translate(-18px)}[dir=rtl] .brand{background-position:right 88%}input[type=number],input[type=email],.postal{direction:ltr}[dir=rtl] input[type=number],[dir=rtl] .postal{text-align:right}:root:lang(fa){--display: "Vazirmatn", Tahoma, "Segoe UI", system-ui, sans-serif;--body: "Vazirmatn", Tahoma, "Segoe UI", system-ui, sans-serif}:root:lang(zh){--display: "Bricolage Grotesque", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;--body: "Atkinson Hyperlegible", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif}:lang(fa) h1,:lang(fa) h2,:lang(zh) h1,:lang(zh) h2{letter-spacing:0}:lang(fa) .intro h1,:lang(zh) .intro h1{line-height:1.3}.results .cans-panel,.results .panel{transition:opacity .2s ease .25s}.results.busy .cans-panel,.results.busy .panel{opacity:.55}.calc-error{display:none;margin:10px 0 0;color:var(--error);font-weight:700;font-size:.92rem}.results.failed .calc-error{display:block}