/* airco-kopen.nl, stylesheet */
@font-face{font-family:"Manrope";src:url(/assets/fonts/manrope-latin-wght-normal.woff2) format("woff2");font-weight:200 800;font-display:swap;unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Manrope";src:url(/assets/fonts/manrope-latin-ext-wght-normal.woff2) format("woff2");font-weight:200 800;font-display:swap;unicode-range:U+0100-02AF,U+0304,U+0308,U+0329,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Inter";src:url(/assets/fonts/inter-latin-400-normal.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"Inter";src:url(/assets/fonts/inter-latin-600-normal.woff2) format("woff2");font-weight:600;font-display:swap}
@font-face{font-family:"Inter";src:url(/assets/fonts/inter-latin-ext-400-normal.woff2) format("woff2");font-weight:400;font-display:swap;unicode-range:U+0100-02AF}

:root{
  --ink:#0d2236;--ink-2:#34495e;--muted:#5d7083;--line:#dbe6ef;--line-2:#c7d6e3;
  --bg:#ffffff;--frost:#f5f9fc;--ice:#e7f2fb;--ice-2:#d3e7f7;
  --blue:#1468b8;--blue-d:#0d4f8f;--blue-l:#4d9be0;
  --accent:#f2602f;--accent-d:#d64b1d;--accent-l:#fff0ea;
  --good:#138a64;--good-l:#e5f6ef;--warn:#b86a12;--warn-l:#fff4e2;--bad:#c23b32;--bad-l:#fdecea;
  --r:14px;--r-s:10px;--shadow:0 1px 2px rgba(13,34,54,.06),0 8px 24px rgba(13,34,54,.07);
  --shadow-l:0 18px 50px rgba(13,34,54,.14);
  --w:1180px;--w-text:720px;
  --h:"Manrope",system-ui,-apple-system,"Segoe UI",sans-serif;
  --b:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:88px}
body{margin:0;font-family:var(--b);font-size:17px;line-height:1.68;color:var(--ink);background:var(--bg);text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;height:auto}
a{color:var(--blue);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--blue-d)}
h1,h2,h3,h4{font-family:var(--h);line-height:1.2;letter-spacing:-.015em;color:var(--ink);margin:0 0 .5em}
h1{font-size:clamp(2rem,4.2vw,3.05rem);font-weight:800;letter-spacing:-.025em}
h2{font-size:clamp(1.45rem,2.6vw,1.85rem);font-weight:800;margin-top:2.1em}
h3{font-size:1.2rem;font-weight:700;margin-top:1.6em}
p{margin:0 0 1.05em}
ul,ol{padding-left:1.25em;margin:0 0 1.1em}
li{margin:.3em 0}
strong{font-weight:600;color:var(--ink)}
hr{border:0;border-top:1px solid var(--line);margin:2.5em 0}
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:.6em 1em;z-index:200}
.skip:focus{left:8px;top:8px}
.wrap{max-width:var(--w);margin:0 auto;padding:0 22px}
:focus-visible{outline:3px solid var(--blue-l);outline-offset:2px;border-radius:4px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;font-family:var(--h);font-weight:700;font-size:1rem;line-height:1;padding:.95em 1.35em;border-radius:999px;border:2px solid transparent;cursor:pointer;text-decoration:none;transition:transform .15s,background .15s,box-shadow .15s,color .15s}
.btn:hover{transform:translateY(-1px)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 6px 18px rgba(242,96,47,.32)}
.btn-accent:hover{background:var(--accent-d);color:#fff}
.btn-blue{background:var(--blue);color:#fff}
.btn-blue:hover{background:var(--blue-d);color:#fff}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line-2)}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue)}
.btn-sm{padding:.7em 1.05em;font-size:.92rem}
.btn svg{width:18px;height:18px}

/* header */
.top{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;gap:18px;height:70px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-family:var(--h);font-weight:800;font-size:1.18rem;letter-spacing:-.02em;white-space:nowrap}
.logo svg{width:36px;height:36px;flex:none}
.logo .lt b{color:var(--blue);font-weight:800}
.nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav>a,.nav .dd>button{font-family:var(--h);font-weight:600;font-size:.95rem;color:var(--ink-2);text-decoration:none;padding:.55em .7em;border-radius:9px;background:none;border:0;cursor:pointer;display:flex;align-items:center;gap:4px}
.nav>a:hover,.nav .dd>button:hover,.nav>a[aria-current]{background:var(--frost);color:var(--blue)}
.dd{position:relative}
.dd-menu{position:absolute;top:calc(100% + 8px);right:0;min-width:300px;background:#fff;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow-l);padding:8px;display:none}
.dd.open .dd-menu{display:block}
.dd-menu a{display:flex;gap:12px;align-items:flex-start;padding:10px 12px;border-radius:10px;text-decoration:none;color:var(--ink)}
.dd-menu a:hover{background:var(--frost)}
.dd-menu b{display:block;font-family:var(--h);font-size:.95rem}
.dd-menu small{display:block;color:var(--muted);font-size:.82rem;line-height:1.4}
.dd-menu .ico{flex:none;width:34px;height:34px;border-radius:9px;background:var(--ice);display:grid;place-items:center;color:var(--blue)}
.dd-menu .ico svg{width:18px;height:18px}
.top-actions{display:flex;gap:8px;align-items:center;margin-left:10px}
.icon-btn{width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;display:grid;place-items:center;cursor:pointer;color:var(--ink)}
.icon-btn:hover{border-color:var(--blue);color:var(--blue)}
.icon-btn svg{width:20px;height:20px}
.burger{display:none}
@media (max-width:1060px){
  .nav{display:none;position:fixed;inset:70px 0 0 0;background:#fff;flex-direction:column;align-items:stretch;padding:14px 18px 40px;overflow:auto;gap:4px;margin:0}
  .nav.open{display:flex}
  .nav>a,.nav .dd>button{font-size:1.08rem;padding:.85em .9em;width:100%;justify-content:space-between}
  .dd-menu{position:static;display:block;box-shadow:none;border:0;padding:0 0 8px 8px;min-width:0}
  .burger{display:grid}
  .top-actions .btn{display:none}
  .top-actions{margin-left:auto}
}
@media (max-width:420px){.logo{font-size:1.02rem}.logo svg{width:30px;height:30px}}

/* breadcrumbs */
.crumbs{font-size:.86rem;color:var(--muted);margin:22px 0 14px;display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{color:var(--blue)}
.crumbs span[aria-hidden]{opacity:.5}

/* hero */
.hero{background:radial-gradient(1200px 500px at 85% -10%,var(--ice-2),transparent 60%),linear-gradient(180deg,var(--frost),#fff);border-bottom:1px solid var(--line);overflow:hidden}
.hero .wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;padding-top:56px;padding-bottom:64px}
.hero h1{font-size:clamp(2.2rem,5vw,3.6rem);margin-bottom:.35em}
.hero p.big{font-size:1.2rem;color:var(--ink-2);max-width:36em}
.eyebrow{display:inline-flex;gap:8px;align-items:center;font-family:var(--h);font-weight:700;font-size:.82rem;letter-spacing:.06em;text-transform:uppercase;color:var(--blue);background:#fff;border:1px solid var(--ice-2);padding:.45em .8em;border-radius:999px;margin-bottom:18px}
.hero-ctas{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 22px}
.trust{display:flex;flex-wrap:wrap;gap:8px 22px;color:var(--ink-2);font-size:.93rem;padding:0;list-style:none;margin:0}
.trust li{display:flex;gap:8px;align-items:center;margin:0}
.trust svg{width:18px;height:18px;color:var(--good);flex:none}
@media (max-width:900px){.hero .wrap{grid-template-columns:1fr;gap:30px;padding-top:34px}}

/* quick start card on home */
.qs{background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow-l);padding:26px}
.qs h2{font-size:1.25rem;margin:0 0 .3em}
.qs p{color:var(--muted);font-size:.95rem}
.qs .opts{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:16px 0}
.qs .opts a{display:flex;flex-direction:column;gap:6px;border:1.5px solid var(--line);border-radius:14px;padding:14px;text-decoration:none;color:var(--ink);font-family:var(--h);font-weight:700;font-size:.95rem;transition:border-color .15s,background .15s}
.qs .opts a:hover{border-color:var(--blue);background:var(--frost)}
.qs .opts svg{width:26px;height:26px;color:var(--blue)}
.qs small{color:var(--muted);display:block;text-align:center;margin-top:10px}

/* sections */
.section{padding:64px 0}
.section.alt{background:var(--frost);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:30px}
.section-head h2{margin-top:0}
.section-head p{color:var(--ink-2);font-size:1.07rem}

.grid{display:grid;gap:18px}
.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
@media (max-width:980px){.g4{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.g2,.g3,.g4{grid-template-columns:1fr}}

.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px;text-decoration:none;color:var(--ink);display:flex;flex-direction:column;gap:8px;transition:border-color .15s,box-shadow .15s,transform .15s}
a.card:hover{border-color:var(--blue-l);box-shadow:var(--shadow);transform:translateY(-2px);color:var(--ink)}
.card h3{margin:0;font-size:1.08rem}
.card p{margin:0;color:var(--ink-2);font-size:.95rem;line-height:1.55}
.card .ico{width:44px;height:44px;border-radius:12px;background:var(--ice);color:var(--blue);display:grid;place-items:center;margin-bottom:6px}
.card .ico svg{width:24px;height:24px}
.card .more{margin-top:auto;padding-top:8px;font-family:var(--h);font-weight:700;font-size:.9rem;color:var(--blue)}
.card .tag{font-size:.75rem;font-family:var(--h);font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--muted)}

/* steps */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(4,1fr);gap:18px;list-style:none;padding:0}
.steps li{counter-increment:s;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px;margin:0}
.steps li::before{content:counter(s);display:grid;place-items:center;width:36px;height:36px;border-radius:50%;background:var(--blue);color:#fff;font-family:var(--h);font-weight:800;margin-bottom:12px}
.steps b{display:block;font-family:var(--h);margin-bottom:4px}
.steps span{color:var(--ink-2);font-size:.95rem}
@media (max-width:900px){.steps{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.steps{grid-template-columns:1fr}}

/* article layout */
.art-head{background:linear-gradient(180deg,var(--frost),#fff);border-bottom:1px solid var(--line);padding-bottom:30px}
.art-head h1{max-width:20em}
.meta{display:flex;flex-wrap:wrap;gap:6px 18px;color:var(--muted);font-size:.88rem;margin-bottom:18px}
.meta span{display:flex;gap:6px;align-items:center}
.meta svg{width:16px;height:16px}
.lead{font-size:1.16rem;color:var(--ink-2);max-width:var(--w-text)}
.art{display:grid;grid-template-columns:minmax(0,var(--w-text)) 300px;gap:56px;justify-content:space-between;padding-top:34px;padding-bottom:40px}
.art-body{min-width:0}
.art-side{position:relative}
.side-sticky{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px}
@media (max-width:1060px){.art{grid-template-columns:minmax(0,1fr)}.art-side{display:none}}
.art-body>h2:first-child{margin-top:.4em}
.art-body table{width:100%}

/* boxes */
.answer{background:var(--ice);border:1px solid var(--ice-2);border-left:5px solid var(--blue);border-radius:var(--r-s);padding:18px 20px;margin:0 0 22px}
.answer .lbl,.teaser .lbl,.concl .lbl,.box .lbl{display:block;font-family:var(--h);font-weight:800;font-size:.78rem;letter-spacing:.07em;text-transform:uppercase;color:var(--blue);margin-bottom:6px}
.answer p:last-child,.teaser ul,.box p:last-child,.concl p:last-child{margin-bottom:0}
.teaser{border:1px dashed var(--line-2);border-radius:var(--r-s);padding:16px 20px;margin:0 0 30px;background:#fff}
.teaser .lbl{color:var(--muted)}
.teaser ul{list-style:none;padding:0}
.teaser li{position:relative;padding-left:26px}
.teaser li::before{content:"";position:absolute;left:2px;top:.62em;width:12px;height:2px;background:var(--accent)}
.teaser li::after{content:"";position:absolute;left:9px;top:calc(.62em - 3px);width:6px;height:6px;border-right:2px solid var(--accent);border-top:2px solid var(--accent);transform:rotate(45deg)}
.box{border-radius:var(--r-s);padding:16px 20px;margin:1.4em 0;border:1px solid}
.box.tip{background:var(--good-l);border-color:#bfe6d6}
.box.tip .lbl{color:var(--good)}
.box.let-op{background:var(--warn-l);border-color:#f3d6a8}
.box.let-op .lbl{color:var(--warn)}
.box.info{background:var(--frost);border-color:var(--line)}
.box.rekenvoorbeeld{background:#fff;border-color:var(--line-2);box-shadow:var(--shadow)}
.box.rekenvoorbeeld .lbl{color:var(--ink-2)}
.concl{background:var(--ink);color:#e9f1f8;border-radius:var(--r);padding:24px 26px;margin:2.4em 0 1.6em}
.concl .lbl{color:#8fc3f0}
.concl p,.concl li{color:#e9f1f8}
.concl strong{color:#fff}
.concl a{color:#bfe0ff}

/* tables */
.tbl{overflow-x:auto;margin:1.4em 0;border:1px solid var(--line);border-radius:var(--r-s);-webkit-overflow-scrolling:touch}
table{border-collapse:collapse;font-size:.94rem;min-width:520px}
th,td{padding:11px 14px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}
th{background:var(--frost);font-family:var(--h);font-weight:700;font-size:.86rem;color:var(--ink-2);white-space:nowrap}
tr:last-child td{border-bottom:0}
tbody tr:hover td{background:#fafcfe}
td:first-child{font-weight:600;color:var(--ink)}
@media (max-width:640px){table{font-size:.88rem}th,td{padding:9px 10px}}

/* toc */
.toc{border:1px solid var(--line);border-radius:var(--r);padding:18px 18px 12px;background:#fff}
.toc b{font-family:var(--h);font-size:.8rem;letter-spacing:.07em;text-transform:uppercase;color:var(--muted)}
.toc ol{list-style:none;padding:0;margin:10px 0 0}
.toc li{margin:0}
.toc a{display:block;padding:6px 10px;border-radius:8px;color:var(--ink-2);text-decoration:none;font-size:.9rem;line-height:1.35;border-left:2px solid transparent}
.toc a:hover{background:var(--frost);color:var(--blue)}
.toc a.on{border-left-color:var(--blue);color:var(--blue);background:var(--frost);font-weight:600}
.mini-cta{background:linear-gradient(160deg,var(--ink),#16406a);color:#fff;border-radius:var(--r);padding:22px}
.mini-cta b{font-family:var(--h);font-size:1.08rem;display:block;margin-bottom:6px}
.mini-cta p{font-size:.92rem;color:#cfe2f3;margin-bottom:14px;line-height:1.5}
.mini-cta .btn{width:100%}
.mini-cta ul{list-style:none;padding:0;margin:14px 0 0;font-size:.85rem;color:#cfe2f3}
.mini-cta li{display:flex;gap:8px;margin:4px 0}
.mini-cta li::before{content:"✓";color:#7fd6b0;font-weight:700}

/* mobile toc */
.toc-m{display:none;margin:0 0 24px}
@media (max-width:1060px){.toc-m{display:block}}
.toc-m details{border:1px solid var(--line);border-radius:var(--r-s);background:#fff}
.toc-m summary{cursor:pointer;padding:12px 16px;font-family:var(--h);font-weight:700;list-style:none;display:flex;justify-content:space-between}
.toc-m summary::-webkit-details-marker{display:none}
.toc-m summary::after{content:"+";font-size:1.3rem;line-height:1;color:var(--blue)}
.toc-m details[open] summary::after{content:"−"}
.toc-m ol{margin:0;padding:0 16px 12px 34px}
.toc-m a{text-decoration:none}

/* cta band */
.cta-band{background:linear-gradient(120deg,var(--blue-d),var(--blue) 60%,#2a86d6);color:#fff;border-radius:22px;padding:30px;display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center;margin:2.4em 0;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;background:rgba(255,255,255,.08)}
.cta-band h3{color:#fff;margin:0 0 .3em;font-size:1.35rem}
.cta-band p{margin:0;color:#dbeaf8}
.cta-band .btn{position:relative;z-index:1}
@media (max-width:640px){.cta-band{grid-template-columns:1fr;padding:24px}}
.cta-inline{border:1.5px solid var(--ice-2);background:var(--frost);border-radius:var(--r);padding:20px 22px;margin:2em 0;display:flex;gap:18px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.cta-inline p{margin:0;max-width:30em}
.cta-inline b{font-family:var(--h)}

/* faq */
.faq details{border:1px solid var(--line);border-radius:var(--r-s);margin:10px 0;background:#fff}
.faq summary{cursor:pointer;padding:15px 48px 15px 18px;font-family:var(--h);font-weight:700;list-style:none;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";position:absolute;right:20px;top:50%;width:9px;height:9px;border-right:2px solid var(--blue);border-bottom:2px solid var(--blue);transform:translateY(-70%) rotate(45deg);transition:transform .2s}
.faq details[open] summary::after{transform:translateY(-30%) rotate(225deg)}
.faq .a{padding:0 18px 4px}

/* sources */
.sources{font-size:.88rem;color:var(--ink-2);border-top:1px solid var(--line);margin-top:2.6em;padding-top:1.2em}
.sources h2{font-size:1rem;margin:0 0 .6em}
.sources ul{padding-left:1.1em}
.sources li{margin:.25em 0}
.author{display:flex;gap:14px;align-items:center;font-size:.9rem;color:var(--ink-2);background:var(--frost);border-radius:var(--r-s);padding:14px 16px;margin-top:24px}
.author svg{width:38px;height:38px;flex:none;color:var(--blue)}

/* related */
.related{padding:40px 0 70px;border-top:1px solid var(--line);background:var(--frost)}
.related h2{margin-top:0;font-size:1.4rem}

/* tool widget */
.tool{background:#fff;border:1px solid var(--line-2);border-radius:18px;box-shadow:var(--shadow);margin:1.8em 0;overflow:hidden}
.tool-head{display:flex;gap:14px;align-items:center;padding:18px 22px;background:var(--frost);border-bottom:1px solid var(--line)}
.tool-head .ico{width:42px;height:42px;border-radius:12px;background:var(--blue);color:#fff;display:grid;place-items:center;flex:none}
.tool-head .ico svg{width:22px;height:22px}
.tool-head b{font-family:var(--h);font-size:1.08rem;display:block;line-height:1.3}
.tool-head small{color:var(--muted);font-size:.86rem}
.tool-body{padding:22px;display:grid;grid-template-columns:1fr 1fr;gap:26px}
@media (max-width:760px){.tool-body{grid-template-columns:1fr}}
.fld{margin-bottom:16px}
.fld>label,.fld>.l{display:block;font-family:var(--h);font-weight:700;font-size:.9rem;margin-bottom:6px}
.fld .hint{font-size:.8rem;color:var(--muted);margin-top:4px;line-height:1.4}
input[type=number],input[type=text],input[type=email],input[type=tel],select,textarea{width:100%;font:inherit;font-size:1rem;color:var(--ink);background:#fff;border:1.5px solid var(--line-2);border-radius:10px;padding:.68em .8em;transition:border-color .15s,box-shadow .15s;appearance:none;-webkit-appearance:none}
select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%231468b8'%3E%3Cpath d='M5.3 7.3a1 1 0 0 1 1.4 0L10 10.6l3.3-3.3a1 1 0 1 1 1.4 1.4l-4 4a1 1 0 0 1-1.4 0l-4-4a1 1 0 0 1 0-1.4z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right .7em center;background-size:18px;padding-right:2.4em}
textarea{min-height:110px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:0;border-color:var(--blue);box-shadow:0 0 0 4px rgba(20,104,184,.14)}
.unit{position:relative}
.unit input{padding-right:3.4em}
.unit em{position:absolute;right:.9em;top:50%;transform:translateY(-50%);font-style:normal;color:var(--muted);font-size:.9rem;pointer-events:none}
.seg{display:flex;flex-wrap:wrap;gap:8px}
.seg label{position:relative;cursor:pointer}
.seg input{position:absolute;opacity:0;pointer-events:none}
.seg span{display:inline-flex;align-items:center;gap:6px;padding:.55em .9em;border:1.5px solid var(--line-2);border-radius:999px;font-size:.92rem;font-weight:600;background:#fff;transition:all .15s}
.seg input:checked+span{border-color:var(--blue);background:var(--blue);color:#fff}
.seg input:focus-visible+span{outline:3px solid var(--blue-l);outline-offset:2px}
input[type=range]{width:100%;accent-color:var(--blue)}
.range-row{display:flex;gap:12px;align-items:center}
.range-row output{min-width:4.5em;text-align:right;font-family:var(--h);font-weight:700}
.result{background:var(--ink);color:#fff;border-radius:16px;padding:22px;display:flex;flex-direction:column;gap:14px;align-self:start}
.result .rl{font-family:var(--h);font-size:.78rem;letter-spacing:.07em;text-transform:uppercase;color:#8fc3f0;font-weight:800}
.result .big{font-family:var(--h);font-weight:800;font-size:clamp(1.9rem,4vw,2.5rem);line-height:1.1;letter-spacing:-.02em}
.result .sub{color:#cfe2f3;font-size:.92rem;line-height:1.5}
.result dl{display:grid;grid-template-columns:1fr auto;gap:6px 14px;margin:0;font-size:.92rem;border-top:1px solid rgba(255,255,255,.14);padding-top:12px}
.result dt{color:#cfe2f3}
.result dd{margin:0;font-weight:600;text-align:right}
.result .btn{margin-top:4px}
.meter{height:12px;border-radius:999px;background:rgba(255,255,255,.14);position:relative;overflow:visible;margin:8px 0 18px}
.meter i{position:absolute;left:0;top:0;bottom:0;border-radius:999px;background:var(--good);transition:width .3s,background .3s}
.meter .lim{position:absolute;top:-6px;bottom:-6px;width:2px;background:#fff}
.meter .lim::after{content:attr(data-l);position:absolute;top:22px;left:50%;transform:translateX(-50%);font-size:.72rem;color:#cfe2f3;white-space:nowrap}
.verdict{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-family:var(--h);padding:.4em .8em;border-radius:999px;font-size:.92rem;align-self:flex-start}
.verdict.ok{background:#1f7a5b;color:#fff}.verdict.mid{background:#b8741a;color:#fff}.verdict.no{background:#b5372e;color:#fff}
.tool-note{font-size:.82rem;color:var(--muted);padding:0 22px 18px;margin:0}

/* funnel */
.funnel-wrap{background:radial-gradient(900px 400px at 100% 0,var(--ice-2),transparent 60%),var(--frost);padding:40px 0 70px}
.funnel{max-width:760px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow-l);overflow:hidden}
.funnel-top{padding:24px 28px 0}
.progress{display:flex;gap:6px;margin:14px 0 4px}
.progress i{flex:1;height:6px;border-radius:999px;background:var(--line)}
.progress i.on{background:var(--blue)}
.progress-l{font-size:.84rem;color:var(--muted);display:flex;justify-content:space-between}
.fstep{padding:22px 28px 6px;border:0;margin:0}
.fstep legend{font-family:var(--h);font-weight:800;font-size:1.45rem;letter-spacing:-.02em;margin-bottom:6px;padding:0}
.fstep .help{color:var(--muted);margin:0 0 18px;font-size:.96rem}
.js .fstep{display:none}
.js .fstep.on{display:block;animation:fade .25s ease}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.choices{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:10px;margin-bottom:16px}
.choice{position:relative}
.choice input{position:absolute;opacity:0;pointer-events:none}
.choice span{display:flex;flex-direction:column;gap:6px;height:100%;padding:16px;border:1.5px solid var(--line-2);border-radius:14px;cursor:pointer;font-family:var(--h);font-weight:700;transition:all .15s;background:#fff}
.choice span small{font-family:var(--b);font-weight:400;color:var(--muted);font-size:.84rem;line-height:1.4}
.choice span svg{width:28px;height:28px;color:var(--blue)}
.choice input:checked+span{border-color:var(--blue);background:var(--ice);box-shadow:0 0 0 3px rgba(20,104,184,.15)}
.choice input:focus-visible+span{outline:3px solid var(--blue-l);outline-offset:2px}
.rooms{display:flex;flex-direction:column;gap:10px;margin-bottom:12px}
.room{display:grid;grid-template-columns:1.3fr 1fr auto;gap:10px;align-items:end;background:var(--frost);border:1px solid var(--line);border-radius:12px;padding:12px}
.room .fld{margin:0}
.room button{height:44px;width:44px;border-radius:10px;border:1px solid var(--line-2);background:#fff;cursor:pointer;color:var(--muted);font-size:1.3rem}
.room button:hover{color:var(--bad);border-color:var(--bad)}
@media (max-width:560px){.room{grid-template-columns:1fr 1fr}.room button{grid-column:span 2;width:100%}}
.addroom{background:none;border:1.5px dashed var(--line-2);border-radius:12px;padding:12px;width:100%;cursor:pointer;font-family:var(--h);font-weight:700;color:var(--blue)}
.addroom:hover{border-color:var(--blue);background:var(--frost)}
.estimate{display:flex;gap:14px;align-items:center;background:var(--good-l);border:1px solid #bfe6d6;border-radius:12px;padding:14px 16px;margin:6px 0 16px}
.estimate b{font-family:var(--h);font-size:1.15rem;color:var(--good)}
.estimate small{display:block;color:var(--ink-2);font-size:.84rem}
.fnav{display:flex;justify-content:space-between;gap:12px;padding:18px 28px 26px;border-top:1px solid var(--line);margin-top:10px;background:#fff}
.no-js-submit{display:none}
.fnav .btn[hidden]{display:none}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:560px){.row2{grid-template-columns:1fr}}
.check{display:flex;gap:10px;align-items:flex-start;font-size:.92rem;color:var(--ink-2);margin:10px 0}
.check input{margin-top:.3em;width:18px;height:18px;accent-color:var(--blue);flex:none}
.err{color:var(--bad);font-size:.86rem;margin-top:6px;display:none}
.invalid input,.invalid select{border-color:var(--bad)}
.invalid .err{display:block}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.notice{border-radius:12px;padding:14px 16px;font-size:.95rem;margin:0 0 16px}
.notice.warn{background:var(--warn-l);border:1px solid #f3d6a8}
.notice.bad{background:var(--bad-l);border:1px solid #f1c4bf}
.funnel-side{max-width:760px;margin:24px auto 0;display:grid;grid-template-columns:repeat(3,1fr);gap:14px;font-size:.9rem;color:var(--ink-2)}
.funnel-side div{display:flex;gap:10px;align-items:flex-start}
.funnel-side svg{width:22px;height:22px;color:var(--good);flex:none}
@media (max-width:640px){.funnel-side{grid-template-columns:1fr}}

/* search */
.search{position:fixed;inset:0;background:rgba(13,34,54,.45);z-index:100;display:none;padding:10vh 16px}
.search.open{display:block}
.search-box{max-width:640px;margin:0 auto;background:#fff;border-radius:18px;box-shadow:var(--shadow-l);overflow:hidden}
.search-box input{border:0;border-bottom:1px solid var(--line);border-radius:0;padding:1.1em 1.2em;font-size:1.1rem}
.search-box input:focus{box-shadow:none}
.search-res{max-height:55vh;overflow:auto;padding:8px}
.search-res a{display:block;padding:12px 14px;border-radius:10px;text-decoration:none;color:var(--ink)}
.search-res a:hover,.search-res a.sel{background:var(--frost)}
.search-res b{font-family:var(--h);display:block}
.search-res small{color:var(--muted)}
.search-res p{color:var(--muted);padding:12px 14px;margin:0}

/* footer */
.foot{background:var(--ink);color:#b9cbdc;padding:56px 0 30px;font-size:.93rem}
.foot a{color:#dbe8f4;text-decoration:none}
.foot a:hover{color:#fff;text-decoration:underline}
.foot-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:34px}
.foot h4{color:#fff;font-size:.95rem;margin:0 0 12px}
.foot ul{list-style:none;padding:0;margin:0}
.foot li{margin:7px 0}
.foot .logo{color:#fff;margin-bottom:12px}
.foot .logo .lt b{color:#8fc3f0}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:40px;padding-top:20px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.84rem}
@media (max-width:860px){.foot-grid{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.foot-grid{grid-template-columns:1fr}}

/* sticky mobile cta */
.mcta{display:none}
@media (max-width:760px){
  .mcta{display:flex;position:fixed;left:12px;right:12px;bottom:12px;z-index:40;transform:translateY(140%);transition:transform .25s}
  .mcta.show{transform:none}
  .mcta .btn{width:100%;box-shadow:0 10px 30px rgba(13,34,54,.3)}
}

/* diagrams */
figure{margin:1.8em 0}
figure svg{display:block;width:100%;height:auto;border:1px solid var(--line);border-radius:var(--r);background:#fff}
figcaption{font-size:.86rem;color:var(--muted);margin-top:8px}

/* misc */
.pill{display:inline-block;font-family:var(--h);font-weight:700;font-size:.75rem;padding:.25em .6em;border-radius:999px;background:var(--ice);color:var(--blue)}
.center{text-align:center}
.muted{color:var(--muted)}
.kb-list{columns:2;column-gap:40px}
.kb-list li{break-inside:avoid}
@media (max-width:640px){.kb-list{columns:1}}
.prose{max-width:var(--w-text)}
.page-pad{padding:10px 0 70px}
@media print{.top,.foot,.art-side,.mcta,.cta-band,.related{display:none}}

.i{width:1.15em;height:1.15em;flex:none;vertical-align:-.2em}
.eyebrow .i{width:16px;height:16px}
.tbl table{width:100%}
.fstep legend:focus{outline:none}