/* ==========================================================================
   AHR Loft Conversions — design system
   Plain CSS, mobile-first from 360px.
   Palette: ink / slate / brass / brass-deep / paper / sand
   Fonts: Sora (headings), Manrope (body)
   Motif: pitched roofline (two lines meeting at an apex)
   ========================================================================== */

:root{
  --ink:#171A1D;
  --slate:#2A3138;
  --brass:#C8923A;
  --brass-deep:#9A6A1C;
  --paper:#FAF8F4;
  --sand:#ECE6DB;
  --line:rgba(23,26,29,.10);
  --line-strong:rgba(23,26,29,.20);
  --shadow:0 20px 55px -22px rgba(23,26,29,.35);
  --radius:12px;
  --maxw:1180px;
  --font-head:'Sora',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --font-body:'Manrope',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --header-h:72px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--paper)}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;font-family:var(--font-body);font-weight:400;color:var(--ink);background:var(--paper);line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
main{background:var(--paper)}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--font-head);font-weight:600;letter-spacing:-.02em;line-height:1.06;color:var(--ink);margin:0 0 .5em}
h1{font-size:clamp(2rem,5.5vw,3.4rem);font-weight:600;letter-spacing:-.03em;line-height:1.03}
h2{font-size:clamp(1.6rem,4vw,2.6rem)}
h3{font-size:clamp(1.15rem,2.4vw,1.5rem);font-weight:600;letter-spacing:-.01em}
p{margin:0 0 1rem}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid var(--brass);outline-offset:3px;border-radius:4px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip{position:absolute;left:.75rem;top:-3rem;z-index:200;background:var(--ink);color:var(--paper);padding:.7rem 1.1rem;border-radius:8px;transition:top .2s}
.skip:focus{top:.75rem}
.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:1.25rem}
@media(min-width:768px){.wrap{padding-inline:2rem}}
section{position:relative}
.pad{padding-block:clamp(3.2rem,8vw,5.5rem)}
.band{background:var(--paper)}
.band--ink{background:var(--ink);color:var(--paper)}
.band--ink h1,.band--ink h2,.band--ink h3,.band--ink h4{color:var(--paper)}
.band--ink p{color:#d8d0c2}
.band--sand{background:var(--sand)}
.lede{font-size:clamp(1.08rem,2.2vw,1.28rem);color:var(--slate)}
/* Roofline motif */
.roofline{display:block;width:100%;height:100%}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;font-family:var(--font-body);font-weight:600;font-size:1rem;letter-spacing:.01em;padding:.85rem 1.6rem;border-radius:999px;border:2px solid transparent;cursor:pointer;transition:transform .15s ease,background .15s ease,color .15s ease,border-color .15s ease;min-height:48px;text-align:center}
.btn--primary{background:var(--brass);color:#fff}
.btn--primary:hover{background:var(--brass-deep);transform:translateY(-2px)}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--line-strong)}
.btn--ghost:hover{border-color:var(--ink);transform:translateY(-2px)}
.band--ink .btn--ghost{color:var(--paper);border-color:rgba(255,255,255,.45)}
.band--ink .btn--ghost:hover{border-color:#fff;color:#fff}
.btn--block{width:100%}

/* Header — 3-col grid: logo | centred nav | CTA */
.site-header{position:fixed;inset:0 0 auto 0;z-index:100;transition:background .25s ease,box-shadow .25s ease}
.site-header .wrap{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;height:var(--header-h)}
.nav{grid-column:2;justify-self:center}
.header-cta{grid-column:3;justify-self:end}
.site-header.is-solid{background:var(--ink);box-shadow:0 10px 30px -20px rgba(0,0,0,.45)}
.brand{grid-column:1;justify-self:start;display:flex;align-items:center;gap:.55rem;min-height:44px}
.brand__mark{width:30px;height:auto;display:block}
.brand__wordmark{font-family:var(--font-head);font-weight:600;font-size:1.25rem;letter-spacing:-.01em;color:var(--paper)}
.site-header:not(.is-solid) .brand__wordmark{color:var(--paper)}
.site-header.is-solid .brand__wordmark{color:var(--paper)}
.nav{display:none}
@media(min-width:900px){
  .nav{display:flex;align-items:center;gap:2.25rem}
  .nav a{font-weight:500;color:var(--paper);font-size:1.02rem;padding:.4rem .1rem;position:relative;transition:color .15s}
  .nav a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--brass);transition:width .2s ease}
  .nav a:hover::after,.nav a[aria-current="page"]::after{width:100%}
  .nav a[aria-current="page"]{color:var(--brass)}
}
.header-cta{display:none}
@media(min-width:900px){.header-cta{display:inline-flex}}
.burger{grid-column:1 / -1;justify-self:end;display:inline-flex;flex-direction:column;justify-content:center;gap:5px;width:48px;height:48px;background:none;border:0;cursor:pointer;padding:0 10px}
.burger span{display:block;height:2px;width:26px;background:var(--paper);transition:transform .2s,opacity .2s}
@media(min-width:900px){.burger{display:none}}
.mobile-menu{position:fixed;inset:0;z-index:120;background:var(--ink);transform:translateX(100%);transition:transform .3s ease;display:flex;flex-direction:column;padding:1.5rem}
.mobile-menu.open{transform:translateX(0)}
.mobile-menu .mm-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}
.mm-close{width:48px;height:48px;background:none;border:0;color:var(--paper);font-size:2rem;cursor:pointer;line-height:1;padding:0}
.mobile-menu nav a{display:block;color:var(--paper);font-size:1.6rem;font-weight:600;padding:.6rem 0;border-bottom:1px solid rgba(255,255,255,.08)}
.mobile-menu .mm-foot{margin-top:auto;display:flex;flex-direction:column;gap:.75rem}
.mm-areas{color:#b8b0a6;font-size:.92rem;line-height:1.55;margin:.2rem 0 0}
.menu-open{overflow:hidden}
/* Hero */
.hero{position:relative;min-height:100vh;min-height:100svh;display:flex;align-items:flex-end;color:var(--paper);overflow:hidden;background:var(--ink)}
@supports (min-height:100dvh){.hero{min-height:100dvh}}
.hero__bg{position:absolute;inset:0;z-index:0;opacity:.35;pointer-events:none}
.hero__bg .roofline path{stroke:var(--paper)}
.hero__video{position:absolute;inset:0;z-index:1;width:100%;height:100%;object-fit:cover}
.hero__video[hidden]{display:none}
.hero__pause{position:absolute;top:1rem;right:1rem;z-index:10;width:44px;height:44px;border-radius:50%;background:rgba(0,0,0,.5);border:2px solid rgba(255,255,255,.7);color:var(--paper);cursor:pointer;display:grid;place-items:center;transition:background .15s}
.hero__pause:focus{outline:3px solid var(--brass);outline-offset:3px}
.hero__pause::after{content:"";display:block;width:6px;height:10px;border:2px solid currentColor;border-left:0;margin-left:1px}
.hero__inner{padding:1rem 0 2rem;position:relative;z-index:2}
.hero h1{color:var(--paper)}
.hero p{color:#e8e0d4}
.hero__cta{display:flex;flex-wrap:wrap;gap:.8rem}
.hero__trust{display:flex;flex-wrap:wrap;gap:1.4rem;margin-top:2.4rem;padding-top:.4rem;border-top:1px solid rgba(255,255,255,.12)}
.hero__trust li{display:flex;align-items:center;gap:.5rem;font-size:.98rem;color:#d8d0c2}
.hero__trust .dot{width:8px;height:8px;border-radius:50%;background:var(--brass);flex:none}
.hero .btn--ghost{background:var(--paper);color:var(--ink);border-color:var(--paper);box-shadow:0 14px 30px -14px rgba(0,0,0,.55)}
.hero .btn--ghost:hover{background:#f0eadc;border-color:#f0eadc;transform:translateY(-2px)}
.reveal{opacity:0;transform:translateY(18px);animation:rise .8s cubic-bezier(.2,.7,.2,1) forwards}
.reveal.d1{animation-delay:.05s}.reveal.d2{animation-delay:.18s}.reveal.d3{animation-delay:.32s}.reveal.d4{animation-delay:.46s}
@keyframes rise{to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.reveal{animation:none;opacity:1;transform:none}}

/* CTA band — centred heading, paragraph, centred pair of buttons */
.cta-band{position:relative;overflow:hidden}
.cta-arcs{position:absolute;left:0;top:50%;translate:0 -50%;width:40px;height:40px;opacity:.25;pointer-events:none;z-index:0}
.cta-arcs .roofline path{stroke:var(--brass)}
.cta-band .wrap{display:flex;flex-direction:column;align-items:center;text-align:center;position:relative;z-index:1}
.cta__heading{color:var(--ink)}
.band--ink .cta__heading{color:var(--paper)}
.cta__para{max-width:48ch;color:var(--slate)}
.band--ink .cta__para{color:#d8d0c2}
.cta-actions{display:flex;justify-content:center;gap:1rem;flex-wrap:wrap;margin-top:.75rem}
/* Split intro */
.split{display:grid;gap:2rem;align-items:center}
@media(min-width:820px){.split{grid-template-columns:1fr 1fr;gap:3.5rem}}
.split--flip .split__media{order:-1}
@media(min-width:820px){.split--flip .split__media{order:2}}
.split__copy{display:flex;flex-direction:column}
.split__media img{border-radius:var(--radius);box-shadow:var(--shadow);width:100%}

/* Service cards (home) */
.supply{display:grid;gap:1rem;margin-top:2rem}
@media(min-width:560px){.supply{grid-template-columns:1fr 1fr}}
@media(min-width:960px){.supply{grid-template-columns:repeat(4,1fr)}}
.card{display:block;padding:1.4rem 1.3rem;border-radius:var(--radius);background:#fff;border:1px solid var(--line);transition:transform .15s,border-color .15s,box-shadow .15s}
.card:hover{transform:translateY(-4px);border-color:var(--brass);box-shadow:var(--shadow)}
.card-img{display:block;border-radius:10px;aspect-ratio:16/10;background:var(--slate);width:100%;margin-bottom:.9rem;position:relative;overflow:hidden}
.card-img .roofline path{stroke:var(--paper);opacity:.5}
.card .t{font-weight:600;color:var(--ink);font-size:1.15rem;margin-bottom:.35rem}
.card .d{color:var(--slate);font-size:.98rem;margin:0}
.card .go{color:var(--brass-deep);font-weight:600;margin-top:.7rem;display:inline-block}

/* Style cards (home styles row) */
.styles{display:grid;gap:1rem;margin-top:1.5rem}
@media(min-width:760px){.styles{grid-template-columns:repeat(2,1fr);gap:1.25rem}}
@media(min-width:1000px){.styles{grid-template-columns:repeat(4,1fr)}}
.style-card{display:block;padding:1.25rem;border-radius:var(--radius);background:#fff;border:1px solid var(--line)}
.style-card .t{font-weight:600;color:var(--ink);font-size:1.05rem;margin-bottom:.35rem}
.style-card .d{color:var(--slate);font-size:.92rem;margin:0}
/* How it works steps */
.steps{counter-reset:s;display:grid;gap:1.5rem;margin-top:2rem}
@media(min-width:760px){.steps{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1000px){.steps{grid-template-columns:repeat(4,1fr)}}
.step{padding-top:1.4rem;border-top:3px solid var(--brass)}
.step::before{counter-increment:s;content:counter(s,decimal-leading-zero);display:block;font-weight:700;color:var(--brass-deep);font-size:.95rem;letter-spacing:.05em;margin-bottom:.4rem}
.step h3{font-size:1.15rem;margin-bottom:.35rem}
.step p{margin:0;color:var(--slate)}

/* Why choose AHR — 5 items, no orphan */
.why{display:grid;gap:1.25rem;margin-top:2rem}
@media(min-width:760px){.why{grid-template-columns:repeat(5,1fr)}}
.why .item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.3rem}
.why .item .k{font-weight:600;color:var(--ink);margin-bottom:.3rem}
.why .item p{margin:0;font-size:.96rem}

/* Image slot fallback */
.slot{position:relative;border-radius:var(--radius);background:var(--slate);overflow:hidden}
.slot__pending{background:rgba(255,255,255,.06)}
.slot__fallback{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.75rem;color:rgba(255,255,255,.65);font-size:.85rem;text-align:center;padding:1rem}
.slot__roofline{width:64px;height:40px;opacity:.45}
.slot__roofline .roofline path{stroke:currentColor}
/* Compare table */
.compare{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--radius);overflow:hidden;font-size:.92rem;margin-top:1rem}
.compare caption{text-align:left;font-weight:600;margin-bottom:.6rem;color:var(--ink)}
.compare th,.compare td{padding:.8rem .9rem;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.compare thead th{background:var(--ink);color:var(--paper);border-bottom:none}
.compare tbody th{color:var(--ink)}
.compare tbody tr:last-child th,.compare tbody tr:last-child td{border-bottom:none}

/* FAQ */
.faq-grid{display:grid;gap:.75rem;margin-top:2rem}
.faq-item{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.faq-item summary{padding:1rem 1.25rem;font-weight:600;color:var(--ink);cursor:pointer;list-style:none;background:#fff}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"";width:14px;height:14px;border-radius:50%;background:var(--brass);display:inline-block;float:right;margin-left:.5rem}
.faq-item[open] summary{border-bottom:1px solid var(--line)}
.faq-item p{padding:.75rem 1.25rem 1.25rem;color:var(--slate);margin:0}

/* About pillars */
.pillars{display:grid;gap:1.25rem;margin-top:2rem}
@media(min-width:760px){.pillars{grid-template-columns:repeat(3,1fr)}}
.pillars .item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.3rem;display:flex;flex-direction:column}
.pillars .item .k{font-weight:600;color:var(--ink);margin-bottom:.3rem}
.pillars .item p{margin:0;font-size:.96rem;flex:1}
/* Contact details */
.contact-details{display:grid;gap:1rem;margin-top:2rem}
.detail{display:flex;flex-direction:column}
.detail .k{font-weight:600;color:var(--slate);font-size:.9rem;margin-bottom:.25rem}
.detail a{color:var(--brass-deep);font-weight:500}

/* Form card */
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.5rem;margin-top:2rem}
@media(min-width:760px){.form-card{padding:2rem}}
.form-card .field{margin-bottom:1rem}
.form-card label{display:flex;justify-content:space-between;align-items:center;font-weight:600;font-size:.95rem;margin-bottom:.4rem}
.form-card .req{color:var(--brass)}
.form-card .opt{color:var(--slate);font-weight:400;font-size:.85rem}
.form-card input,.form-card select,.form-card textarea{width:100%;padding:.7rem .85rem;border:1px solid var(--line);border-radius:8px;font-family:inherit;font-size:1rem}
.form-card input:focus,.form-card select:focus,.form-card textarea:focus{border-color:var(--brass);outline:none}
.form-card .err{color:var(--brass-deep);font-size:.85rem;display:none;margin-top:.35rem}
.form-card .field.invalid .err{display:block}
.form-card .consent{display:flex;align-items:flex-start;gap:.6rem;margin-bottom:1rem}
.form-card .consent label{font-weight:400;font-size:.95rem}
.form-card .consent input{margin-top:.15rem;width:auto}
.form-card .actions{margin-top:.5rem}
.form-success,.form-fail{padding:1rem;border-radius:8px;margin-top:1rem}
.form-success{background:#eef6ea;border:1px solid var(--brass);color:#2d5a1d}
.form-fail{background:#fbeeee;border:1px solid var(--brass-deep);color:#7a2e2e}
/* 404 */
.notfound{min-height:70vh;display:grid;place-items:center;text-align:center}
.notfound__motif{width:120px;height:80px;margin:0 auto 1.5rem;opacity:.3}
.notfound__motif .roofline path{stroke:var(--paper)}
.notfound h1{color:var(--paper)}
.notfound p{color:#d8d0c2}

/* Footer */
.site-footer{background:var(--ink);color:var(--paper);padding-block:4rem 2rem}
.site-footer .footer__grid{display:grid;gap:2rem;margin-bottom:2.5rem}
@media(min-width:760px){.site-footer .footer__grid{grid-template-columns:repeat(4,1fr)}}
.footer__brand .brand__wordmark{color:var(--paper)}
.site-footer h4{color:var(--paper);font-size:1rem;margin-bottom:1rem}
.site-footer a{color:#cfcac4}
.site-footer a:hover{color:var(--paper)}
.foot-note{color:#a8a29b;font-size:.9rem;margin:0;line-height:1.6}
.foot-phone li{margin-bottom:.4rem}
.social{display:flex;gap:.6rem;margin-top:1rem}
.social a{width:44px;height:44px;border-radius:50%;border:1px solid rgba(255,255,255,.2);display:grid;place-items:center}
.footer__bottom{display:flex;flex-direction:column;gap:.75rem;align-items:center;text-align:center;padding-top:2rem;border-top:1px solid rgba(255,255,255,.1)}
.footer__bottom nav a{margin:0 .5rem}
/* Sticky mobile call bar */
.callbar{position:fixed;left:0;right:0;bottom:0;z-index:90;display:block;background:var(--brass);box-shadow:0 -8px 30px -18px rgba(0,0,0,.4);padding:0 0 env(safe-area-inset-bottom,0px)}
.callbar a{display:flex;align-items:center;justify-content:center;gap:.6rem;font-weight:700;color:#fff;min-height:58px;font-size:1.08rem;letter-spacing:.01em;text-align:center;padding:.4rem 1rem}
.callbar a strong{font-weight:700}
.callbar .cb-call{background:var(--brass);width:100%;border-radius:0}
.callbar .cb-call svg{width:20px;height:20px;fill:#fff;flex:none}
.callbar .cb-call:hover,.callbar .cb-call:active{background:var(--brass-deep)}
@media(min-width:900px){.callbar{display:none}}
@media(max-width:899px){body{padding-bottom:calc(58px + env(safe-area-inset-bottom,0px))}}

/* Floating WhatsApp */
.fab{position:fixed;right:1rem;bottom:calc(58px + env(safe-area-inset-bottom,0px) + .9rem);z-index:95;width:56px;height:56px;border-radius:50%;background:#25D366;display:grid;place-items:center;box-shadow:0 10px 30px -10px rgba(0,0,0,.5);transition:transform .15s}
.fab:hover{transform:translateY(-3px)}
@media(min-width:900px){.fab{bottom:1.5rem;right:1.5rem}}
.fab svg{width:30px;height:30px;fill:#fff}

/* Anchor offset for fixed header */
section[id]{scroll-margin-top:100px}

/* Fixed header clearance for non-hero pages */
main{padding-top:var(--header-h)}
.hero{margin-top:calc(-1 * var(--header-h))}

/* Updated stamp */
.updated{font-size:.9rem;color:var(--slate);opacity:.8;margin-top:1.5rem}

/* Form status messages — toggled by the .show class in main.js */
.form-success.show,.form-fail.show{display:block}
.form-card form.is-sent{display:none}

/* Slot fallback overlays the image only until it loads */
.slot__fallback{display:none}
.slot--empty .slot__fallback{display:flex}