/* FairPane site styles */
@font-face{font-family:'Bricolage Grotesque';src:url('/assets/fonts/bricolage-grotesque.woff2') format('woff2');font-weight:500 800;font-style:normal;font-display:swap}
@font-face{font-family:'Instrument Sans';src:url('/assets/fonts/instrument-sans.woff2') format('woff2');font-weight:400 700;font-style:normal;font-display:swap}

:root{
  --font-display:'Bricolage Grotesque',ui-sans-serif,system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --font-body:'Instrument Sans',ui-sans-serif,system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --bg:#FFFFFF;--bg-soft:#F6F8FF;--surface:#FFFFFF;--surface-2:#F6F8FF;--surface-3:#EEF2FD;
  --tint:#E6EDFF;--tint-2:#D3DEFF;
  --border:#E3E8F5;--border-strong:#C9D2EA;
  --text:#0B1B33;--muted:#4B5875;--subtle:#5D6987;
  --link:#2F5BFF;--link-hover:#1D3FD1;
  --primary:#2F5BFF;--primary-hover:#2349E8;--on-primary:#FFFFFF;
  --accent:#2ED3A2;--accent-soft:#DDF8EE;--on-accent:#0B1B33;
  --good:#0A7556;--warn:#975200;--bad:#B42318;
  --focus:#2F5BFF;
  --panel:#0B1B33;--panel-2:#142A50;--panel-text:#FFFFFF;--panel-muted:#B3C1E0;--panel-line:rgba(255,255,255,.14);
  --seg-win:#7E9BFF;--seg-lab:#2ED3A2;--seg-mat:#C7D4FF;--seg-ext:#5A6C93;
  --ill-ink:#0B1B33;--ill-line:#8592B2;--ill-glass:#E6EDFF;--ill-glass-2:#CDDAFF;--ill-glint:#FFFFFF;--ill-wall:#EEF1F8;--ill-hatch:#C9D2EA;
  --map-0:#D4E0FF;--map-1:#AEC3FF;--map-2:#839FFF;--map-3:#577DFF;--map-4:#2B52F0;
  --shadow:0 1px 2px rgba(11,27,51,.05),0 14px 40px rgba(11,27,51,.08);
  --r-xl:28px;--r-lg:20px;--r-md:14px;--r-sm:10px;
  --header-h:68px;--gutter:clamp(20px,4vw,40px);
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root{
    --bg:#0A1220;--bg-soft:#0D172B;--surface:#101B31;--surface-2:#14213B;--surface-3:#192946;
    --tint:#172852;--tint-2:#1F3466;
    --border:#22314F;--border-strong:#33476F;
    --text:#EAF0FF;--muted:#A9B6D3;--subtle:#97A5C5;
    --link:#91AAFF;--link-hover:#B8C8FF;
    --primary:#3A60FF;--primary-hover:#4C6EFF;--on-primary:#FFFFFF;
    --accent:#2ED3A2;--accent-soft:#0F3A33;--on-accent:#0B1B33;
    --good:#47D8A9;--warn:#F2B45C;--bad:#FF8E82;
    --focus:#91AAFF;
    --panel:#13213D;--panel-2:#1B2D54;--panel-muted:#A9B6D3;--panel-line:rgba(255,255,255,.12);
    --seg-ext:#6B7EA8;
    --ill-ink:#D6E0FF;--ill-line:#7586AD;--ill-glass:#172852;--ill-glass-2:#233B72;--ill-glint:#4B66AC;--ill-wall:#15223D;--ill-hatch:#33476F;
    --map-0:#1B2B52;--map-1:#243C7D;--map-2:#3152AE;--map-3:#456CE6;--map-4:#86A2FF;
    --shadow:0 0 0 1px rgba(255,255,255,.03);
    color-scheme:dark;
  }
}

/* Base */
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-padding-top:calc(var(--header-h) + 24px + env(safe-area-inset-top,0px))}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}
body{margin:0;font-family:var(--font-body);font-size:1.125rem;line-height:1.65;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;padding-left:env(safe-area-inset-left,0px);padding-right:env(safe-area-inset-right,0px)}
img{max-width:100%;height:auto;display:block}
h1,h2,h3,h4{font-family:var(--font-display);color:var(--text);margin:0;line-height:1.12;letter-spacing:-.02em;font-weight:700;text-wrap:balance}
h1{font-size:clamp(2.6rem,1.7rem + 3.6vw,4.25rem);font-weight:800;letter-spacing:-.04em;line-height:1}
h2{font-size:clamp(1.85rem,1.4rem + 1.6vw,2.5rem);letter-spacing:-.032em;line-height:1.08}
h3{font-size:clamp(1.3rem,1.15rem + .5vw,1.5rem);letter-spacing:-.02em;line-height:1.2}
p{margin:0 0 1.1em}
ul,ol{margin:0 0 1.2em;padding-left:1.25em}
li{margin:.3em 0}
strong{font-weight:650}
a{color:var(--link);text-decoration-thickness:1.5px;text-underline-offset:3px}
a:hover{color:var(--link-hover)}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:6px}
.icon{width:20px;height:20px;flex:none;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.wrap{width:min(1200px,100% - 2 * var(--gutter));margin-inline:auto}
.skip{position:absolute;left:12px;top:-60px;z-index:100;background:var(--primary);color:var(--on-primary);padding:10px 16px;border-radius:10px;font-weight:600;text-decoration:none}
.skip:focus{top:12px}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 20px;border-radius:12px;border:1px solid transparent;font:inherit;font-size:.98rem;font-weight:600;line-height:1;text-decoration:none;cursor:pointer;transition:background-color .15s,border-color .15s,color .15s;white-space:nowrap}
.btn .icon{width:18px;height:18px}
.btn-primary{background:var(--primary);color:var(--on-primary)}
.btn-primary:hover{background:var(--primary-hover);color:var(--on-primary)}
.btn-ghost{background:transparent;color:var(--primary);border-color:var(--border-strong)}
.btn-ghost:hover{background:var(--surface-2);color:var(--primary)}
.btn-sm{min-height:40px;padding:0 14px;font-size:.92rem;border-radius:10px}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:12px;border:0;background:transparent;color:var(--muted);cursor:pointer;flex:none}
.icon-btn:hover{background:var(--surface-3);color:var(--text)}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:var(--bg);border-bottom:1px solid var(--border);padding-top:env(safe-area-inset-top,0px)}
@supports (backdrop-filter:blur(10px)){.site-header{background:color-mix(in srgb,var(--bg) 86%,transparent);backdrop-filter:saturate(1.6) blur(14px);-webkit-backdrop-filter:saturate(1.6) blur(14px)}}
.header-inner{display:flex;align-items:center;gap:20px;height:var(--header-h)}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);text-decoration:none;font-family:var(--font-display);font-weight:700;font-size:1.5rem;letter-spacing:-.035em;margin-right:auto}
.brand:hover{color:var(--text)}
.brand svg{width:34px;height:34px;flex:none}
.nav ul{display:flex;align-items:center;gap:2px;list-style:none;margin:0;padding:0}
.nav li{margin:0}
.nav a{display:inline-flex;align-items:center;min-height:40px;padding:0 12px;border-radius:10px;color:var(--muted);font-weight:600;font-size:.95rem;text-decoration:none}
.nav a:hover{color:var(--text);background:var(--surface-2)}
.menu-btn{display:none}
@media (max-width:960px){
  .header-cta{display:none}
  .menu-btn{display:inline-flex}
  .nav{position:absolute;left:0;right:0;top:100%;background:var(--bg);border-bottom:1px solid var(--border);padding:8px var(--gutter) 16px;display:none;box-shadow:0 18px 30px rgba(11,27,51,.08)}
  .nav-open .nav{display:block}
  .nav ul{flex-direction:column;align-items:stretch}
  .nav a{min-height:48px;font-size:1.05rem}
}

/* Hero */
.hero{position:relative;overflow:hidden;background:var(--bg-soft);padding:clamp(44px,6vw,76px) 0 clamp(150px,16vw,190px)}
.hero-copy{position:relative;z-index:1;max-width:780px}
.hero .lead{font-size:clamp(1.12rem,1rem + .45vw,1.32rem);line-height:1.55;color:var(--muted);max-width:60ch;margin:22px 0 0}
.hero-art{position:absolute;z-index:0;top:36px;right:calc((100% - min(1200px,100% - 2 * var(--gutter))) / 2 - 70px);width:min(400px,38vw);pointer-events:none}
.hero-art svg{width:100%;height:auto}
.ha-a{fill:var(--primary);opacity:.11}
.ha-b{fill:var(--accent);opacity:.2}
.ha-c{stroke:var(--bg-soft);stroke-width:12}
.byline{display:flex;align-items:center;flex-wrap:wrap;gap:12px 14px;margin-top:28px}
.byline img{width:46px;height:46px;border-radius:50%;object-fit:cover;box-shadow:0 0 0 2px var(--bg-soft),0 0 0 3px var(--border-strong)}
.byline .who{display:flex;flex-direction:column;line-height:1.3;font-size:.95rem}
.byline .who a{color:var(--text);font-weight:650;text-decoration:none}
.byline .who a:hover{text-decoration:underline}
.byline .who span{color:var(--muted)}
.byline .updated{display:inline-flex;align-items:center;gap:6px;margin:0;padding-left:14px;border-left:1px solid var(--border-strong);color:var(--muted);font-size:.92rem}
.byline .updated .icon{width:17px;height:17px}
.hero-points{display:flex;flex-wrap:wrap;gap:8px 22px;list-style:none;margin:22px 0 0;padding:0;font-size:.95rem;font-weight:500}
.hero-points li{display:inline-flex;align-items:center;gap:8px;margin:0}
.hero-points .icon{width:18px;height:18px;padding:2px;border-radius:50%;background:var(--accent);color:var(--on-accent);stroke-width:2.6}
@media (max-width:760px){.hero-art{display:none}.byline .updated{border-left:0;padding-left:0;width:100%}}

/* Estimator */
.estimator-section{position:relative;z-index:2;margin-top:calc(-1 * clamp(112px,13vw,150px))}
.estimator{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(330px,1fr);background:var(--surface);border:1px solid var(--border);border-radius:var(--r-xl);box-shadow:var(--shadow)}
.est-inputs{padding:clamp(20px,3vw,36px);min-width:0}
.est-head h2{font-size:clamp(1.45rem,1.2rem + .9vw,1.95rem)}
.est-head p{color:var(--muted);margin:8px 0 0;font-size:1rem}
.est-group{margin-top:28px;padding-top:24px;border-top:1px solid var(--border)}
.est-h{font-size:1.1rem;letter-spacing:-.01em;margin:0 0 16px}
.grid-2f{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.field label,.flabel,.fieldset legend{font-size:.85rem;font-weight:600;color:var(--text);line-height:1.3}
.fieldset{border:0;margin:18px 0 0;padding:0;min-width:0}
.fieldset legend{padding:0;margin-bottom:8px}
.hint{font-size:.88rem;color:var(--muted);margin:8px 0 0;line-height:1.45}
select,input[type=number],input[type=text],input[type=search]{appearance:none;-webkit-appearance:none;font:inherit;font-size:1rem;color:var(--text);background-color:var(--surface);border:1px solid var(--border-strong);border-radius:12px;min-height:46px;padding:0 14px;width:100%;transition:border-color .15s,box-shadow .15s}
select{padding-right:40px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23808CA8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;background-size:18px;cursor:pointer;text-overflow:ellipsis}
select:hover,input[type=number]:hover,input[type=text]:hover,input[type=search]:hover{border-color:var(--subtle)}
select:focus-visible,input:focus-visible{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px color-mix(in srgb,var(--primary) 28%,transparent)}
input[type=number]{-moz-appearance:textfield}
input[type=number]::-webkit-inner-spin-button,input[type=number]::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}

.seg{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;gap:4px;padding:4px;background:var(--surface-2);border:1px solid var(--border);border-radius:13px}
.seg input{position:absolute;opacity:0;width:1px;height:1px;pointer-events:none}
.seg label{display:flex;align-items:center;justify-content:center;min-height:40px;padding:0 10px;border-radius:9px;color:var(--muted);font-weight:600;font-size:.94rem;cursor:pointer;text-align:center;transition:background-color .15s,color .15s}
.seg label:hover{color:var(--text)}
.seg input:checked+label{background:var(--surface);color:var(--text);box-shadow:0 1px 2px rgba(11,27,51,.1),0 0 0 1px var(--border-strong)}
.seg input:focus-visible+label{outline:3px solid var(--focus);outline-offset:1px}

.toggles{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:2px 18px}
.switch{display:flex;align-items:center;gap:12px;min-height:44px;cursor:pointer;font-size:.95rem;line-height:1.3;position:relative}
.switch input{position:absolute;opacity:0;width:1px;height:1px}
.track{position:relative;flex:none;width:40px;height:24px;border-radius:999px;background:var(--border-strong);transition:background-color .15s}
.track::after{content:'';position:absolute;top:3px;left:3px;width:18px;height:18px;border-radius:50%;background:#FFFFFF;box-shadow:0 1px 2px rgba(0,0,0,.25);transition:transform .15s}
.switch input:checked+.track{background:var(--primary)}
.switch input:checked+.track::after{transform:translateX(16px)}
.switch input:focus-visible+.track{outline:3px solid var(--focus);outline-offset:2px}

.rooms{display:flex;flex-direction:column;gap:14px}
.room{background:var(--surface-2);border:1px solid var(--border);border-radius:18px;padding:14px}
.room-head{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.room-kind{width:auto;min-width:170px;max-width:60%;font-weight:650;background-color:var(--surface);padding-right:34px;background-position:right 10px center}
.room-count{color:var(--muted);font-size:.9rem;margin-right:auto}
.win-list{display:flex;flex-direction:column;gap:10px}
.win{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:10px 12px;align-items:end;background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:12px}
.f-type{grid-column:span 4}.f-size{grid-column:span 5}.f-qty{grid-column:span 3}
.f-w,.f-h{grid-column:span 6}
.f-glass{grid-column:span 6}.f-floor{grid-column:span 3}
.win-remove{grid-column:span 3;justify-self:end;width:auto;padding:0 12px;gap:6px;font:inherit;font-size:.9rem;font-weight:600;height:46px}
.fixed-size{display:flex;align-items:center;min-height:46px;padding:0 14px;border-radius:12px;background:var(--surface-2);color:var(--muted);font-size:.95rem}
.qty{display:grid;grid-template-columns:42px minmax(0,1fr) 42px;height:46px;border:1px solid var(--border-strong);border-radius:12px;overflow:hidden;background:var(--surface)}
.qty button{border:0;background:transparent;color:var(--muted);cursor:pointer;display:flex;align-items:center;justify-content:center}
.qty button:hover{background:var(--surface-2);color:var(--text)}
.qty input{border:0;border-radius:0;min-height:0;height:100%;text-align:center;padding:0;font-weight:650;box-shadow:none!important}
.add-win{margin-top:10px}
.rooms-empty{color:var(--muted);margin:0;padding:16px;border:1px dashed var(--border-strong);border-radius:14px;text-align:center}
.add-room{margin-top:16px}
.add-room-row{display:flex;gap:10px;margin-top:6px}
.add-room-row select{flex:1}
@media (max-width:640px){
  .grid-2f,.toggles{grid-template-columns:minmax(0,1fr)}
  .f-type,.f-size,.f-glass{grid-column:span 12}
  .f-qty,.f-floor,.f-w,.f-h{grid-column:span 6}
  .f-type{order:1}.f-size{order:2}.f-w,.f-h{order:3}.f-glass{order:4}.f-qty,.f-floor{order:5}
  .win-remove{grid-column:span 12;justify-self:start;order:6;height:40px;padding:0 8px}
  .room-kind{min-width:0;max-width:none;flex:1}
}

/* Results panel */
.est-results{background:var(--panel);color:var(--panel-text);border-radius:0 var(--r-xl) var(--r-xl) 0;padding:clamp(22px,3vw,36px);min-width:0}
.results-sticky{position:sticky;top:calc(var(--header-h) + 24px + env(safe-area-inset-top,0px))}
.res-where{display:inline-flex;align-items:center;gap:8px;margin:0;font-size:.88rem;font-weight:600;color:var(--panel-muted)}
.res-where .icon{width:16px;height:16px}
.res-title{color:var(--panel-text);font-size:1.05rem;letter-spacing:-.01em;margin:16px 0 0;font-weight:600}
.res-total{font-family:var(--font-display);font-weight:800;font-size:clamp(2.8rem,2.2rem + 2.4vw,3.9rem);letter-spacing:-.045em;line-height:1;margin:8px 0 6px;font-variant-numeric:tabular-nums}
.res-range{margin:0;color:var(--panel-muted);font-size:1rem}
.rangebar{position:relative;height:10px;border-radius:999px;margin:22px 0 8px;background:linear-gradient(90deg,rgba(46,211,162,.28),rgba(126,155,255,.4))}
.rb-typ{position:absolute;top:50%;width:20px;height:20px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px var(--panel);transform:translate(-50%,-50%)}
.rb-quote{position:absolute;top:-8px;width:3px;height:26px;border-radius:3px;background:#FFFFFF;transform:translateX(-50%)}
.rb-labels{display:flex;justify-content:space-between;font-size:.85rem;color:var(--panel-muted);font-variant-numeric:tabular-nums}
.res-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin:22px 0 0;padding:16px 0 0;border-top:1px solid var(--panel-line)}
.res-stats div{min-width:0}
.res-stats dt{font-size:.8rem;color:var(--panel-muted);margin:0}
.res-stats dd{margin:2px 0 0;font-family:var(--font-display);font-weight:700;font-size:1.3rem;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.res-sub{color:var(--panel-text);font-size:.95rem;font-weight:600;letter-spacing:0;margin:24px 0 10px}
.stackbar{display:flex;height:12px;border-radius:999px;overflow:hidden;gap:2px;background:var(--panel-2)}
.stackbar .seg-windows{background:var(--seg-win)}.stackbar .seg-labor{background:var(--seg-lab)}.stackbar .seg-materials{background:var(--seg-mat)}.stackbar .seg-extras{background:var(--seg-ext)}
.stackbar span{display:block;min-width:2px;transition:width .25s}
.legend-list,.room-totals{list-style:none;margin:12px 0 0;padding:0;font-size:.93rem}
.legend-list li,.room-totals li{display:flex;align-items:center;gap:10px;margin:0;padding:7px 0;border-bottom:1px solid var(--panel-line)}
.legend-list li:last-child,.room-totals li:last-child{border-bottom:0}
.legend-list strong,.room-totals strong{margin-left:auto;font-variant-numeric:tabular-nums;font-weight:650}
.room-totals em{font-style:normal;color:var(--panel-muted);font-size:.86rem;margin-left:4px}
.sw{width:10px;height:10px;border-radius:3px;flex:none}
.sw-windows{background:var(--seg-win)}.sw-labor{background:var(--seg-lab)}.sw-materials{background:var(--seg-mat)}.sw-extras{background:var(--seg-ext)}
.quote-check{margin-top:22px;padding-top:18px;border-top:1px solid var(--panel-line)}
.quote-check label{display:block;font-size:.92rem;font-weight:600;margin-bottom:8px}
.money-input{display:flex;align-items:center;height:48px;border-radius:12px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.2);padding-left:14px}
.money-input span{color:var(--panel-muted);font-weight:600}
.money-input input{border:0;background:transparent;color:#FFFFFF;min-height:0;height:100%;padding:0 12px 0 6px;box-shadow:none!important}
.money-input input::placeholder{color:#8E9CBE}
.money-input:focus-within{border-color:#91AAFF;box-shadow:0 0 0 3px rgba(145,170,255,.3)}
.quote-result{display:flex;gap:10px;align-items:flex-start;margin:12px 0 0;padding:12px 14px;border-radius:12px;font-size:.93rem;line-height:1.45;background:rgba(255,255,255,.07)}
.quote-result .icon{width:18px;height:18px;margin-top:1px}
.quote-result.q-ok .icon{color:var(--accent)}
.quote-result.q-low .icon,.quote-result.q-high .icon{color:#FFC46B}
.est-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.btn-panel{background:rgba(255,255,255,.08);color:#FFFFFF;border-color:rgba(255,255,255,.16);min-height:42px;padding:0 14px;font-size:.92rem}
.btn-panel:hover{background:rgba(255,255,255,.14);color:#FFFFFF}
.res-foot{margin:18px 0 0;font-size:.84rem;line-height:1.5;color:var(--panel-muted)}
@media (max-width:980px){
  .estimator{grid-template-columns:minmax(0,1fr)}
  .est-results{border-radius:0 0 var(--r-xl) var(--r-xl)}
  .results-sticky{position:static}
}
.mbar{position:fixed;z-index:45;left:12px;right:12px;bottom:calc(12px + env(safe-area-inset-bottom,0px));display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 10px 10px 18px;border-radius:16px;background:var(--panel);color:#FFFFFF;box-shadow:0 10px 36px rgba(11,27,51,.35);transform:translateY(160%);transition:transform .25s ease;visibility:hidden}
.mbar.show{transform:none;visibility:visible}
.mbar-label{display:block;font-size:.78rem;color:var(--panel-muted)}
.mbar-total{font-family:var(--font-display);font-weight:800;font-size:1.45rem;letter-spacing:-.03em;line-height:1.1}
.mbar .btn{min-height:42px;background:var(--accent);color:var(--on-accent)}
@media (min-width:981px){.mbar{display:none}}

/* Guide layout */
.guide{display:grid;grid-template-columns:minmax(0,1fr) 260px;grid-template-areas:"article aside";gap:80px;align-items:start;padding:clamp(56px,7vw,88px) 0 24px}
.article{grid-area:article;min-width:0;max-width:760px}
.aside{grid-area:aside;position:sticky;top:calc(var(--header-h) + 28px + env(safe-area-inset-top,0px))}
.toc summary{display:none}
.toc-title{font-family:var(--font-display);font-weight:700;font-size:1rem;letter-spacing:-.01em;margin:0 0 10px}
.toc ol{list-style:none;margin:0;padding:0;border-left:2px solid var(--border);max-height:calc(100vh - var(--header-h) - 120px);overflow:auto;scrollbar-width:thin}
.toc li{margin:0}
.toc a{display:block;margin-left:-2px;padding:6px 0 6px 14px;border-left:2px solid transparent;color:var(--muted);font-size:.92rem;line-height:1.35;text-decoration:none}
.toc a:hover{color:var(--text)}
.toc a[aria-current="true"]{color:var(--text);font-weight:650;border-left-color:var(--primary)}
.aside .ad-slot{margin-top:28px}
@media (max-width:1100px){
  .guide{grid-template-columns:minmax(0,1fr);grid-template-areas:"aside" "article";gap:28px}
  .article{max-width:none}
  .aside{position:static}
  .toc{border:1px solid var(--border);border-radius:16px;background:var(--surface-2)}
  .toc summary{display:flex;align-items:center;justify-content:space-between;gap:12px;list-style:none;min-height:54px;padding:0 18px;font-weight:650;cursor:pointer}
  .toc summary::-webkit-details-marker{display:none}
  .toc summary .icon{transition:transform .2s}
  .toc[open] summary .icon{transform:rotate(180deg)}
  .toc .toc-title{display:none}
  .toc ol{margin:0 18px 16px;max-height:none}
}

/* Article content */
.section{margin-top:clamp(56px,7vw,80px)}
.section:first-child{margin-top:0}
.section>h2{margin-bottom:18px}
.section h3{margin:40px 0 12px}
.article p,.article li{max-width:68ch}
.answer{font-size:1.2rem;line-height:1.6}
.muted{color:var(--muted)}
.table-wrap{position:relative;margin:26px 0;overflow-x:auto;border:1px solid var(--border);border-radius:18px;background:var(--surface);-webkit-overflow-scrolling:touch}
table{width:100%;border-collapse:collapse;font-size:1rem;line-height:1.45}
.table-wrap table.wide{min-width:600px}
caption{caption-side:bottom;text-align:left;padding:12px 18px 16px;color:var(--muted);font-size:.86rem;line-height:1.45;border-top:1px solid var(--border)}
th,td{text-align:left;padding:14px 18px;border-bottom:1px solid var(--border);vertical-align:middle}
thead th{font-size:.84rem;font-weight:600;color:var(--muted);background:var(--surface-2);white-space:nowrap}
tbody tr:last-child th,tbody tr:last-child td{border-bottom:0}
tbody th{font-weight:600}
.num{text-align:right;white-space:nowrap;font-variant-numeric:tabular-nums}
.price{font-family:var(--font-display);font-weight:700;font-size:1.08rem;letter-spacing:-.01em}
.dim{color:var(--muted);font-size:.95rem}
.tcell{display:flex;align-items:center;gap:14px;font-weight:600}
.tcell svg{width:46px;height:46px;flex:none}
.tcell span,th.nw{white-space:nowrap}
.note-cell{color:var(--muted);font-size:.94rem;min-width:200px}
.mini{position:relative;height:8px;border-radius:999px;background:var(--tint);min-width:150px}
.mini span{position:absolute;top:0;bottom:0;border-radius:999px;background:color-mix(in srgb,var(--primary) 40%,transparent)}
.mini i{position:absolute;top:50%;width:14px;height:14px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 3px var(--surface);transform:translate(-50%,-50%)}
.note{display:flex;gap:14px;align-items:flex-start;margin:26px 0;padding:18px 20px;border-radius:16px;background:var(--tint)}
.note .icon{color:var(--primary);width:22px;height:22px;margin-top:2px}
.note p{margin:0}
.note p+p{margin-top:.6em}

@media (max-width:640px){th,td{padding:12px 14px}caption{padding:10px 14px 14px}.answer{font-size:1.1rem}}

/* Figures and diagrams */
.figure{margin:28px 0}
.figure-card{border:1px solid var(--border);border-radius:20px;background:var(--surface-2);padding:clamp(16px,3vw,28px)}
.figure figcaption{margin-top:12px;font-size:.88rem;line-height:1.5;color:var(--muted)}
.diagram{width:100%;height:auto;display:block}
.d-wall{fill:var(--ill-wall);stroke:var(--ill-line);stroke-width:1.5}
.d-hatch{stroke:var(--ill-hatch);stroke-width:1.5}
.d-old{fill:var(--ill-glass-2);stroke:var(--ill-line);stroke-width:2}
.d-new{fill:var(--ill-glass);stroke:var(--primary);stroke-width:3}
.d-sash{fill:none;stroke:var(--primary);stroke-width:2}
.d-flash{fill:var(--accent)}
.d-trim{fill:var(--surface);stroke:var(--ill-ink);stroke-width:2}
.d-dash{fill:none;stroke:var(--ill-line);stroke-width:2;stroke-dasharray:6 6}
.d-lead{fill:none;stroke:var(--ill-line);stroke-width:1.5}
.d-dot{fill:var(--ill-ink)}
.d-text{fill:var(--text);font-family:var(--font-body);font-size:15px;font-weight:600}
.d-sub{fill:var(--muted);font-family:var(--font-body);font-size:14px}
.d-head{fill:var(--text);font-family:var(--font-display);font-size:19px;font-weight:700;letter-spacing:-.01em}
.d-arrow{fill:none;stroke:var(--primary);stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}
.d-arrow2{fill:none;stroke:var(--good);stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}
.d-tag{fill:var(--primary)}
.d-tag2{fill:var(--accent)}
.d-tagtext{fill:#FFFFFF;font-family:var(--font-display);font-size:14px;font-weight:700}
.d-tagtext2{fill:#0B1B33;font-family:var(--font-display);font-size:14px;font-weight:700}
.d-tag3{fill:var(--good)}
.d-pilltext{fill:#FFFFFF;font-family:var(--font-display);font-size:12.5px;font-weight:700}
.d-pilltext3{fill:var(--bg);font-family:var(--font-display);font-size:12.5px;font-weight:700}
.mini-wrap{display:flex;flex-direction:column;gap:6px;min-width:160px}

/* Window type icons */
.ic-frame{fill:var(--ill-glass);stroke:var(--ill-ink);stroke-width:2.5;stroke-linejoin:round}
.ic-line{fill:none;stroke:var(--ill-ink);stroke-width:2.5;stroke-linecap:round}
.ic-thin{fill:none;stroke:var(--ill-ink);stroke-width:1.75;stroke-linecap:round}
.ic-dash{fill:none;stroke:var(--ill-line);stroke-width:1.75;stroke-dasharray:3 3;stroke-linejoin:round}
.ic-move{fill:none;stroke:var(--primary);stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}
.ic-dot{fill:var(--accent)}
.ic-glint{fill:none;stroke:var(--ill-glint);stroke-width:2.5;stroke-linecap:round}

/* Breakdown bar */
.bd{margin:24px 0}
.bd-bar{display:flex;height:20px;border-radius:999px;overflow:hidden;gap:3px}
.bd-bar span{display:block}
.bd-win{background:var(--primary)}.bd-lab{background:var(--accent)}.bd-mat{background:var(--tint-2)}.bd-ext{background:var(--ill-line)}
.bd-legend{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;list-style:none;margin:14px 0 0;padding:0}
.bd-legend li{margin:0;display:flex;flex-direction:column;gap:2px;font-size:.9rem;color:var(--muted)}
.bd-legend b{display:flex;align-items:center;gap:8px;color:var(--text);font-weight:600}
.bd-legend b i{width:10px;height:10px;border-radius:3px;flex:none}
.bd-legend strong{font-family:var(--font-display);font-size:1.25rem;color:var(--text);letter-spacing:-.02em}
@media (max-width:640px){.bd-legend{grid-template-columns:repeat(2,minmax(0,1fr))}}

/* Lists */
.checks,.pluses,.flags,.tips{list-style:none;padding:0}
.checks li,.pluses li,.flags li{display:flex;gap:12px;align-items:flex-start;margin:.55em 0}
.checks .icon,.pluses .icon,.flags .icon{margin-top:4px;width:18px;height:18px}
.checks .icon{color:var(--good)}
.pluses .icon{color:var(--subtle)}
.flags .icon{color:var(--warn)}
.two-col{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin:24px 0}
.col-card{border:1px solid var(--border);border-radius:18px;padding:20px 22px;background:var(--surface)}
.col-card h3{font-size:1.1rem;margin:0 0 8px}
.col-card ul{margin:0}
.defs{list-style:none;padding:0;margin:20px 0}
.defs li{padding:14px 0;border-bottom:1px solid var(--border);margin:0}
.defs li:last-child{border-bottom:0}
.tips li{display:grid;grid-template-columns:44px minmax(0,1fr);gap:16px;align-items:start;margin:0;padding:18px 0;border-bottom:1px solid var(--border)}
.tips li:last-child{border-bottom:0}
.tip-ic{width:44px;height:44px;border-radius:12px;background:var(--tint);color:var(--primary);display:flex;align-items:center;justify-content:center}
.tip-ic .icon{width:22px;height:22px}
.tips h3{font-size:1.1rem;margin:0 0 4px}
.tips p{margin:0;color:var(--muted)}
.feature-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:24px 0}
.feature{border:1px solid var(--border);border-radius:18px;padding:22px;background:var(--surface)}
.feature .icon{width:26px;height:26px;color:var(--primary);margin-bottom:12px}
.feature h3{font-size:1.12rem;margin:0 0 6px}
.feature p{margin:0;color:var(--muted);font-size:1rem}
@media (max-width:640px){.two-col,.feature-grid{grid-template-columns:minmax(0,1fr)}}

/* Steps timeline */
.steps{list-style:none;padding:0;margin:28px 0;counter-reset:step}
.steps li{position:relative;display:grid;grid-template-columns:52px minmax(0,1fr);gap:18px;margin:0;padding-bottom:28px}
.steps li:last-child{padding-bottom:0}
.steps li::after{content:'';position:absolute;left:25px;top:52px;bottom:4px;width:2px;background:var(--border)}
.steps li:last-child::after{display:none}
.step-num{counter-increment:step;width:52px;height:52px;border-radius:16px;background:var(--surface-2);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;color:var(--primary)}
.step-num .icon{width:24px;height:24px}
.steps h3{font-size:1.15rem;margin:4px 0 4px}
.steps .when{display:inline-block;font-size:.85rem;font-weight:600;color:var(--good);background:var(--accent-soft);padding:3px 10px;border-radius:999px;margin-bottom:6px}
.steps p{margin:0;color:var(--muted)}

/* Map */
.map-wrap{position:relative}
.usmap{width:100%;height:auto;display:block}
.usmap a{outline:none}
.map-wrap.figure-card{background:var(--surface)}
.usmap path{stroke:var(--surface);stroke-width:1;stroke-linejoin:round;transition:fill .15s}
.usmap .b0{fill:var(--map-0)}.usmap .b1{fill:var(--map-1)}.usmap .b2{fill:var(--map-2)}.usmap .b3{fill:var(--map-3)}.usmap .b4{fill:var(--map-4)}
.usmap a:hover path,.usmap a:focus-visible path{stroke:var(--text);stroke-width:2}
.map-tip{position:absolute;z-index:3;pointer-events:none;background:var(--panel);color:#FFFFFF;padding:8px 12px;border-radius:10px;font-size:.88rem;line-height:1.3;white-space:nowrap;transform:translate(-50%,calc(-100% - 12px));opacity:0;transition:opacity .12s}
.map-tip.show{opacity:1}
.map-tip strong{font-weight:650}
.legend{display:flex;flex-wrap:wrap;align-items:center;gap:8px 16px;margin-top:14px;font-size:.86rem;color:var(--muted)}
.legend span{display:inline-flex;align-items:center;gap:7px}
.legend i{width:16px;height:12px;border-radius:3px}
.filter{position:relative;max-width:320px;margin:22px 0 0}
.filter .icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--subtle);pointer-events:none;width:18px;height:18px}
.filter input{padding-left:42px}
.use-btn{font:inherit;font-size:.86rem;font-weight:600;color:var(--primary);background:transparent;border:1px solid var(--border-strong);border-radius:9px;min-height:34px;padding:0 12px;cursor:pointer;white-space:nowrap}
.use-btn:hover{background:var(--tint)}
#state-table tbody tr{scroll-margin-top:calc(var(--header-h) + 80px)}
#state-table tbody tr:target th,#state-table tbody tr:target td{background:var(--accent-soft)}
.empty-row{color:var(--muted);padding:16px 18px;margin:0}

/* FAQ */
.faq{border-bottom:1px solid var(--border)}
.faq:first-of-type{border-top:1px solid var(--border)}
.faq summary{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 0;cursor:pointer;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary h3{font-size:1.16rem;margin:0;letter-spacing:-.015em}
.faq summary .pm{flex:none;width:32px;height:32px;border-radius:10px;background:var(--surface-2);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;color:var(--muted);transition:transform .2s}
.faq[open] summary .pm{transform:rotate(45deg);color:var(--text)}
.faq .faq-body{padding:0 0 18px}
.faq .faq-body p:last-child{margin-bottom:0}

/* Author */
.author{display:grid;grid-template-columns:128px minmax(0,1fr);gap:26px;align-items:center;margin-top:clamp(56px,7vw,80px);padding:28px;border:1px solid var(--border);border-radius:24px;background:var(--surface-2)}
.author img{width:128px;height:128px;border-radius:24px;object-fit:cover}
.author h2{font-size:1.5rem;margin:0}
.author .role{color:var(--muted);font-size:.98rem;margin:4px 0 12px}
.author p{margin:0 0 10px}
.author a{font-weight:600}
@media (max-width:560px){.author{grid-template-columns:minmax(0,1fr)}.author img{width:96px;height:96px;border-radius:20px}}

/* Inner pages */
.nav a[aria-current="page"]{color:var(--text);background:var(--surface-2)}
.page-head{background:var(--bg-soft);border-bottom:1px solid var(--border);padding:clamp(28px,4vw,48px) 0 clamp(32px,4vw,52px)}
.crumbs ol{display:flex;flex-wrap:wrap;gap:6px;list-style:none;margin:0 0 18px;padding:0;font-size:.9rem;color:var(--muted)}
.crumbs li{margin:0;display:inline-flex;align-items:center;gap:6px}
.crumbs li+li::before{content:"/";color:var(--border-strong)}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{color:var(--text);text-decoration:underline}
.page-head h1{font-size:clamp(2.3rem,1.7rem + 2.4vw,3.5rem)}
.page-lead{font-size:clamp(1.08rem,1rem + .35vw,1.25rem);line-height:1.55;color:var(--muted);max-width:62ch;margin:16px 0 0}
.page-meta{display:inline-flex;align-items:center;gap:6px;margin:16px 0 0;font-size:.92rem;color:var(--muted)}
.page-meta .icon{width:17px;height:17px}
.page-body{padding:clamp(40px,5vw,64px) 0 0}
.prose{max-width:760px}
.prose>h2{font-size:clamp(1.45rem,1.2rem + 1vw,1.85rem);margin:52px 0 14px;scroll-margin-top:calc(var(--header-h) + 24px)}
.prose>h2:first-child{margin-top:0}
.prose p,.prose li{max-width:68ch}
.small{font-size:.92rem}
.page-toc{border:1px solid var(--border);background:var(--surface-2);border-radius:16px;padding:18px 22px;margin:0 0 40px}
.page-toc p{font-weight:650;margin:0 0 8px}
.page-toc ol{margin:0;padding-left:1.2em;columns:2;column-gap:36px;font-size:.96rem}
.page-toc li{break-inside:avoid}
.about-intro{display:grid;grid-template-columns:minmax(0,300px) minmax(0,1fr);gap:40px;align-items:start;margin-bottom:8px}
.about-photo{width:100%;height:auto;aspect-ratio:4/5;object-fit:cover;border-radius:24px;background:var(--surface-2)}
.about-lead{font-family:var(--font-display);font-size:1.32rem;font-weight:600;letter-spacing:-.015em;line-height:1.4}
.about-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.contact-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-bottom:12px}
.contact-card{border:1px solid var(--border);border-radius:20px;padding:24px;background:var(--surface)}
.contact-card>.icon{width:28px;height:28px;color:var(--primary);margin-bottom:12px}
.contact-card h2{font-size:1.2rem;margin:0 0 8px}
.contact-card p{margin:0 0 12px}
.contact-card p:last-child{margin:14px 0 0}
.contact-email{font-family:var(--font-display);font-size:1.3rem;font-weight:700;letter-spacing:-.015em;text-decoration:none;word-break:break-all}
.contact-place{font-family:var(--font-display);font-size:1.3rem;font-weight:700;letter-spacing:-.015em}
.link-list{list-style:none;padding:0;margin:20px 0 0;border-top:1px solid var(--border)}
.link-list li{margin:0;border-bottom:1px solid var(--border)}
.link-list a{display:flex;align-items:center;gap:14px;padding:16px 4px;font-weight:600;text-decoration:none}
.link-list .icon{color:var(--primary)}
.footer-contact{margin:10px 0 0;font-size:.96rem}
.footer-contact a{color:#FFFFFF}
.site-footer nav a[aria-current="page"]{text-decoration:underline}
@media (max-width:760px){.about-intro{grid-template-columns:minmax(0,1fr);gap:24px}.about-photo{max-width:300px}.page-toc ol{columns:1}}
@media (max-width:640px){.contact-grid{grid-template-columns:minmax(0,1fr)}}

/* Ads: hidden until an ad unit is placed inside */
.ad-slot{margin:40px 0;min-height:0}
.ad-slot:empty{display:none}

/* Footer */
.site-footer{margin-top:clamp(64px,8vw,104px);background:#0B1B33;color:#C2CDE6;padding:56px 0 calc(40px + env(safe-area-inset-bottom,0px))}
.footer-grid{display:flex;flex-wrap:wrap;justify-content:space-between;gap:28px 48px}
.footer-brand{max-width:380px}
.footer-brand .brand{color:#FFFFFF;margin:0 0 12px}
.footer-brand p{font-size:.98rem;margin:0}
.site-footer nav ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px 24px}
.site-footer nav a{color:#FFFFFF;text-decoration:none;font-weight:600;font-size:.98rem;display:inline-flex;min-height:40px;align-items:center}
.site-footer nav a:hover{text-decoration:underline}
.footer-legal{margin-top:40px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);font-size:.88rem;line-height:1.6;color:#A9B6D3}
.footer-legal p{margin:0 0 8px;max-width:90ch}
@media (prefers-color-scheme:dark){.site-footer{background:#070D18}.ha-a{opacity:.22}.ha-b{opacity:.12}}

/* Print: only the estimate sheet */
.print-sheet{display:none}
@media print{
  body>*:not(.print-sheet){display:none!important}
  .print-sheet{display:block;color:#000;font:11pt/1.5 var(--font-body)}
  .print-sheet h1{font-size:20pt;letter-spacing:-.02em;margin:0 0 6pt}
  .print-sheet .ps-total{font-size:14pt;font-weight:700;margin:12pt 0}
  .print-sheet table{width:100%;border-collapse:collapse;margin:12pt 0}
  .print-sheet th,.print-sheet td{border-bottom:1px solid #CCC;padding:6pt 4pt;text-align:left}
}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important;animation:none!important}}