/* BK Builders — site styles
   Palette taken from the BK logo: brand blue + brand red, on cool plaster white. */
:root{
  --ink:#0E2340;      /* deep navy for dark sections */
  --blue:#275D9B;     /* logo blue */
  --blue-d:#1C4677;
  --red:#D7262C;      /* logo red — calls to action only */
  --red-d:#B51D22;
  --paper:#FFFFFF;
  --mist:#EEF2F7;     /* cool plaster */
  --line:#D5DDE8;
  --text:#18212E;
  --muted:#556275;
  --wa:#1FA855;
  --r:4px;
  --wrap:1200px;
  --f:"Archivo","Noto Sans Tamil",system-ui,sans-serif;
  --shadow:0 18px 40px -24px rgba(14,35,64,.45);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--f);font-size:17px;line-height:1.65;color:var(--text);background:var(--paper);font-variation-settings:"wdth" 100}
html[lang=ta] body{font-size:16px;line-height:1.75}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue)}
a:hover{color:var(--blue-d)}
:focus-visible{outline:3px solid var(--red);outline-offset:2px}
h1,h2,h3,h4{font-family:var(--f);color:var(--ink);line-height:1.12;margin:0 0 .5em;font-variation-settings:"wdth" 112;font-weight:750;letter-spacing:-.01em}
h1{font-size:clamp(2rem,4vw,3.1rem)}
h2{font-size:clamp(1.7rem,3.2vw,2.5rem)}
h3{font-size:1.3rem}
h4{font-size:1.05rem}
html[lang=ta] h1,html[lang=ta] h2,html[lang=ta] h3{font-variation-settings:normal;letter-spacing:0;line-height:1.3}
html[lang=ta] h1{font-size:clamp(1.7rem,3.6vw,2.7rem)}
html[lang=ta] h2{font-size:clamp(1.4rem,2.6vw,2rem)}
p{margin:0 0 1em;max-width:68ch}
.wrap{width:min(var(--wrap),100% - 32px);margin-inline:auto}
.sec{padding:clamp(56px,8vw,104px) 0}
.sec.mist{background:var(--mist)}
.sec.dark{background:var(--ink);color:#C9D4E3}
.sec.dark h2,.sec.dark h3,.sec.dark h4{color:#fff}
.blueprint{background-color:var(--ink);background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:44px 44px}
.lead{font-size:1.15rem;color:var(--muted)}
.dark .lead{color:#B5C3D6}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.sec-head p{margin:0}
.skip{position:absolute;left:-999px;top:8px;background:#fff;padding:8px 12px;z-index:200}
.skip:focus{left:8px}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 22px;border-radius:var(--r);font-weight:650;font-size:1rem;text-decoration:none;border:2px solid transparent;cursor:pointer;font-family:inherit;line-height:1.2;transition:background .2s,color .2s,border-color .2s}
.btn svg{width:20px;height:20px;flex:none}
.btn-red{background:var(--red);color:#fff}
.btn-red:hover{background:var(--red-d);color:#fff}
.btn-blue{background:var(--blue);color:#fff}
.btn-blue:hover{background:var(--blue-d);color:#fff}
.btn-line{border-color:var(--line);color:var(--ink);background:#fff}
.btn-line:hover{border-color:var(--blue);color:var(--blue)}
.dark .btn-line,.hero .btn-line{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.dark .btn-line:hover,.hero .btn-line:hover{border-color:#fff;color:#fff}
.btn-wa{background:var(--wa);color:#fff}
.btn-wa:hover{background:#178a45;color:#fff}
.btns{display:flex;gap:12px;flex-wrap:wrap}

/* top strip + header */
.topbar{background:var(--ink);color:#B5C3D6;font-size:.86rem}
.topbar .wrap{display:flex;justify-content:space-between;gap:16px;padding:8px 0;flex-wrap:wrap}
.topbar a{color:#fff;text-decoration:none}
.topbar span{display:inline-flex;gap:6px;align-items:center}
.lang{background:none;border:1px solid rgba(255,255,255,.35);color:#fff;border-radius:var(--r);padding:2px 10px;font:inherit;cursor:pointer}
.lang:hover{border-color:#fff}
header.site{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:76px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}
.brand img{height:58px;width:auto}
.brand b{font-size:1.15rem;font-variation-settings:"wdth" 120;letter-spacing:.01em;display:block;line-height:1.1}
.brand small{color:var(--muted);font-size:.78rem}
nav.main ul{list-style:none;margin:0;padding:0;display:flex;gap:4px;align-items:center}
nav.main a{display:block;padding:10px 12px;text-decoration:none;color:var(--ink);font-weight:550;font-size:.97rem;border-radius:var(--r)}
nav.main a:hover,nav.main a[aria-current=page]{color:var(--blue);background:var(--mist)}
nav.main li{position:relative}
nav.main .sub{position:absolute;top:100%;left:0;min-width:250px;background:#fff;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:6px;display:none;flex-direction:column;align-items:stretch}
nav.main li:hover>.sub,nav.main li:focus-within>.sub{display:flex}
nav.main .cta a{background:var(--red);color:#fff;margin-left:8px}
nav.main .cta a:hover{background:var(--red-d);color:#fff}
.nav-head,.nav-foot,.acc,.nav-backdrop,nav.main .ni{display:none}
nav.main .nav-list{display:flex;gap:4px;align-items:center}
nav.main a.top{display:flex;align-items:center}
.burger{display:none;background:none;border:1px solid var(--line);border-radius:var(--r);width:46px;height:46px;cursor:pointer}
.burger span{display:block;width:20px;height:2px;background:var(--ink);margin:4px auto}

/* hero */
.hero{position:relative;background:var(--ink);color:#fff;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);min-height:min(78vh,720px)}
.hero-copy{padding:clamp(48px,7vw,96px) clamp(16px,4vw,56px) clamp(48px,6vw,80px) max(16px,calc((100vw - var(--wrap))/2));display:flex;flex-direction:column;justify-content:center;position:relative;z-index:1}
.hero h1{color:#fff;margin-bottom:.4em}
.hero p{color:#C9D4E3;font-size:1.13rem}
.hero-img{position:relative}
.hero-img{overflow:hidden;background:var(--ink)}
.slide{position:absolute;inset:0;margin:0;opacity:0;visibility:hidden;transition:opacity 1s ease,visibility 1s}
.slide.on{opacity:1;visibility:visible;z-index:1}
.slide img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transform:scale(1.001);transition:transform 6.5s ease-out}
.slide.on img{transform:scale(1.06)}
.slide figcaption{position:absolute;right:96px;bottom:56px;z-index:2;background:rgba(255,255,255,.95);border-left:4px solid var(--red);border-radius:var(--r);padding:14px 18px;display:grid;gap:3px;max-width:320px;color:var(--muted);font-size:.9rem;box-shadow:var(--shadow)}
.slide figcaption b{color:var(--ink);font-size:1.1rem}
.slide figcaption .tag{justify-self:start;margin-bottom:4px}
.slide figcaption a{font-weight:650;margin-top:4px}
.dots{position:absolute;right:96px;bottom:24px;z-index:3;display:flex;gap:8px}
.dots button{width:28px;height:6px;border:0;border-radius:3px;background:rgba(255,255,255,.55);cursor:pointer;padding:0}
.dots button[aria-current=true]{background:var(--red)}
.slide::after{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;background:linear-gradient(90deg,var(--ink) 0,rgba(14,35,64,0) 22%)}
.since{display:flex;align-items:center;gap:14px;margin-bottom:22px;color:#fff;font-weight:600}
.since i{display:block;width:44px;height:3px;background:var(--red)}
.hero-facts{display:grid;grid-template-columns:repeat(3,auto);gap:28px;margin-top:40px;padding-top:24px;border-top:1px solid rgba(255,255,255,.18);justify-content:start}
.hero-facts b{display:block;font-size:2rem;font-variation-settings:"wdth" 120;line-height:1}
.hero-facts span{font-size:.88rem;color:#B5C3D6}

/* plot register — the signature strip */
.register{background:#fff;border-bottom:1px solid var(--line)}
.register .wrap{display:grid;grid-template-columns:220px 1fr;gap:24px;align-items:center;padding:22px 0}
.register h2{font-size:1rem;margin:0;font-variation-settings:"wdth" 100;color:var(--muted);font-weight:600}
.reg-track{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:thin;border-left:3px solid var(--red)}
.reg-item{flex:0 0 auto;scroll-snap-align:start;padding:4px 22px;border-right:1px solid var(--line);text-decoration:none;color:var(--text)}
.reg-item b{display:block;font-size:1.45rem;color:var(--ink);font-variation-settings:"wdth" 118;line-height:1.1}
.reg-item span{font-size:.82rem;color:var(--muted);white-space:nowrap}
.reg-item.live b{color:var(--red)}

/* project cards */
.grid{display:grid;gap:28px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
.proj{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;text-decoration:none;color:inherit}
.proj figure{margin:0;aspect-ratio:4/3.4;overflow:hidden;background:var(--mist);position:relative}
.proj figure img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.proj:hover figure img{transform:scale(1.03)}
.proj .body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:6px;flex:1}
.proj h3{margin:0;font-size:1.25rem}
.proj .loc{color:var(--muted);font-size:.93rem}
.tag{position:absolute;top:14px;left:14px;background:var(--red);color:#fff;font-size:.8rem;font-weight:650;padding:5px 10px;border-radius:var(--r)}
.tag.done{background:var(--ink)}
.units{display:flex;flex-wrap:wrap;gap:6px;margin-top:6px}
.units span{border:1px solid var(--line);border-radius:var(--r);padding:3px 9px;font-size:.84rem;color:var(--ink);font-weight:550}
.more{margin-top:auto;padding-top:12px;font-weight:650;color:var(--blue)}

/* split blocks */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,72px);align-items:center}
.split.rev>:first-child{order:2}
.frame{position:relative}
.frame img{border-radius:var(--r);width:100%;box-shadow:var(--shadow)}
.frame::before{content:"";position:absolute;inset:-14px 14px 14px -14px;border:2px solid var(--blue);border-radius:var(--r);z-index:-1}

/* spec list — features drawn from the brochures */
.specs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;border-top:1px solid var(--line)}
.spec{padding:26px 24px 26px 0;border-bottom:1px solid var(--line)}
.spec svg{width:30px;height:30px;color:var(--red);margin-bottom:12px}
.spec h3{font-size:1.08rem;margin-bottom:.3em}
.spec p{color:var(--muted);font-size:.95rem;margin:0}
.dark .specs,.dark .spec{border-color:rgba(255,255,255,.14)}
.dark .spec p{color:#AFC0D4}

/* locations */
.areas{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.14)}
.area{background:var(--ink);padding:26px;text-decoration:none;color:#C9D4E3;display:block}
.area:hover{background:#13305A;color:#fff}
.area h3{color:#fff;margin-bottom:.2em;font-size:1.2rem}
.area span{font-size:.9rem}

/* steps (real sequences only) */
.steps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:28px;counter-reset:s}
.steps li{counter-increment:s;border-top:3px solid var(--blue);padding-top:18px}
.steps li::before{content:counter(s);display:block;font-weight:750;color:var(--red);font-size:1.4rem;font-variation-settings:"wdth" 120;margin-bottom:6px}
.steps h3{font-size:1.1rem}
.steps p{color:var(--muted);font-size:.95rem;margin:0}

/* testimonials */
.quotes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}
.quote{background:#fff;border-left:3px solid var(--red);padding:26px;border-radius:0 var(--r) var(--r) 0}
.quote p{font-size:1.02rem}
.quote cite{font-style:normal;font-weight:650;color:var(--ink)}
.quote cite span{display:block;font-weight:400;color:var(--muted);font-size:.9rem}

/* table */
.tbl{width:100%;border-collapse:collapse;font-size:.98rem;background:#fff}
.tbl th,.tbl td{text-align:left;padding:14px 16px;border-bottom:1px solid var(--line)}
.tbl th{background:var(--ink);color:#fff;font-weight:600}
.tbl tr:hover td{background:var(--mist)}
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r)}

/* page head */
.phead{padding:clamp(48px,7vw,88px) 0 clamp(40px,5vw,64px);color:#C9D4E3}
.phead h1{color:#fff;max-width:20ch}
.phead p{font-size:1.12rem;color:#B5C3D6}
.crumbs{font-size:.88rem;margin-bottom:18px;color:#8FA3BD}
.crumbs a{color:#fff;text-decoration:none}
.crumbs a:hover{text-decoration:underline}

/* project detail */
.pd{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:48px;align-items:start}
.pd-aside{position:sticky;top:100px;background:var(--mist);border-radius:var(--r);padding:28px}
.facts{list-style:none;padding:0;margin:0 0 20px}
.facts li{display:flex;justify-content:space-between;gap:16px;padding:10px 0;border-bottom:1px solid var(--line);font-size:.96rem}
.facts li b{color:var(--ink);text-align:right}
.ticks{list-style:none;padding:0;margin:0;columns:2;column-gap:32px}
.ticks li{break-inside:avoid;padding:8px 0 8px 28px;position:relative;border-bottom:1px solid var(--line)}
.ticks li::before{content:"";position:absolute;left:2px;top:15px;width:12px;height:7px;border-left:2.5px solid var(--red);border-bottom:2.5px solid var(--red);transform:rotate(-45deg)}
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.plans a{display:block;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:#fff}
.plans figcaption{padding:10px 12px;font-size:.9rem;font-weight:600;color:var(--ink)}
.plans figure{margin:0}

/* filters */
.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:32px}
.chip{border:1px solid var(--line);background:#fff;border-radius:40px;padding:8px 16px;font:inherit;font-size:.93rem;cursor:pointer;color:var(--ink)}
.chip[aria-pressed=true]{background:var(--ink);border-color:var(--ink);color:#fff}
.proj[hidden]{display:none}

/* forms */
.form{display:grid;gap:14px}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form label{font-size:.9rem;font-weight:600;color:var(--ink);display:grid;gap:6px}
.dark .form label{color:#fff}
.form input,.form select,.form textarea{font:inherit;font-size:1rem;padding:12px 14px;border:1px solid var(--line);border-radius:var(--r);background:#fff;color:var(--text);width:100%}
.form input:focus,.form select:focus,.form textarea:focus{outline:2px solid var(--blue);border-color:var(--blue)}
.form .note{font-size:.84rem;color:var(--muted);margin:0}
.dark .form .note{color:#AFC0D4}
.form .err{color:var(--red);font-size:.88rem;margin:0;min-height:1.2em}
.panel{background:#fff;border-radius:var(--r);padding:clamp(22px,3vw,36px);box-shadow:var(--shadow);color:var(--text)}
.panel h3,.panel h2{color:var(--ink)}
.panel .form label{color:var(--ink)}

/* EMI */
.emi{display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:center}
.emi .form label span{float:right;color:var(--blue);font-weight:700}
.emi input[type=range]{padding:0;accent-color:var(--red);border:0}
.emi-out{background:var(--ink);color:#C9D4E3;border-radius:var(--r);padding:32px}
.emi-out b{display:block;color:#fff;font-size:clamp(2rem,4vw,2.8rem);font-variation-settings:"wdth" 118;line-height:1.1;margin:4px 0 16px}
.emi-out dl{display:grid;grid-template-columns:1fr auto;gap:8px 16px;margin:0;font-size:.95rem}
.emi-out dd{margin:0;color:#fff;text-align:right}

/* FAQ */
.faq details{border-bottom:1px solid var(--line);padding:4px 0}
.faq summary{cursor:pointer;list-style:none;padding:18px 40px 18px 0;font-weight:650;color:var(--ink);position:relative;font-size:1.05rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:6px;top:12px;font-size:1.6rem;color:var(--red);font-weight:400}
.faq details[open] summary::after{content:"–"}
.faq details p{color:var(--muted);padding-bottom:12px}

/* CTA band */
.cta-band{background:var(--red);color:#fff}
.cta-band .wrap{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:40px 0;flex-wrap:wrap}
.cta-band h2{color:#fff;margin:0;font-size:clamp(1.4rem,2.6vw,2rem)}
.cta-band .btn-line{background:#fff;color:var(--red);border-color:#fff}
.cta-band .btn-line:hover{background:transparent;color:#fff}

/* footer */
footer.site{background:var(--ink);color:#AFC0D4;font-size:.95rem}
footer.site .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding:72px 0 48px}
footer.site h3{color:#fff;font-size:1.02rem;margin-bottom:16px}
footer.site ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
footer.site a{color:#D6E0EC;text-decoration:none}
footer.site a:hover{color:#fff;text-decoration:underline}
footer.site .flogo{background:#fff;border-radius:var(--r);padding:8px;display:inline-block;margin-bottom:16px}
footer.site .flogo img{height:72px;width:auto}
.social{display:flex;gap:10px;margin-top:16px}
.social a{width:40px;height:40px;border:1px solid rgba(255,255,255,.25);border-radius:var(--r);display:grid;place-items:center}
.social a:hover{border-color:#fff}
.social svg{width:18px;height:18px;fill:#fff}
.legal{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;font-size:.86rem;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* floating WhatsApp + mobile action bar */
.wa-float{position:fixed;right:20px;bottom:20px;z-index:60;width:58px;height:58px;border-radius:50%;background:var(--wa);display:grid;place-items:center;box-shadow:0 10px 24px -8px rgba(0,0,0,.45)}
.wa-float svg{width:30px;height:30px;fill:#fff}
.mbar{display:none}

/* modal + lightbox */
dialog{border:0;border-radius:var(--r);padding:0;max-width:min(520px,calc(100% - 32px));width:100%;box-shadow:var(--shadow)}
dialog::backdrop{background:rgba(14,35,64,.7)}
dialog .panel{box-shadow:none}
.x{position:absolute;right:10px;top:10px;background:none;border:0;font-size:1.8rem;line-height:1;cursor:pointer;color:var(--muted);width:40px;height:40px}
dialog.lb{max-width:min(1100px,calc(100% - 24px));background:transparent;box-shadow:none}
dialog.lb img{max-height:86vh;width:auto;margin:auto;border-radius:var(--r)}
dialog.lb .x{color:#fff;right:0;top:-44px}

.map iframe{width:100%;height:420px;border:0;border-radius:var(--r);display:block}
.muted{color:var(--muted)}
.mt0{margin-top:0}

@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}}

@media (max-width:1080px){
  /* ---- mobile drawer ---- */
  .burger{display:block}
  nav.main{position:fixed;top:0;right:0;bottom:0;width:min(360px,88vw);background:#fff;z-index:95;display:flex;flex-direction:column;
    visibility:hidden;clip-path:inset(0 0 0 100%);transition:clip-path .38s cubic-bezier(.2,.8,.2,1),visibility 0s .38s;box-shadow:-20px 0 40px -20px rgba(14,35,64,.5)}
  nav.main.open{visibility:visible;clip-path:inset(0 0 0 0);transition:clip-path .38s cubic-bezier(.2,.8,.2,1),visibility 0s}
  .nav-backdrop{display:block;position:fixed;inset:0;background:rgba(14,35,64,.55);z-index:94;opacity:0;transition:opacity .3s}
  .nav-backdrop.show{opacity:1}
  .nav-backdrop[hidden]{display:none}
  .nav-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;border-bottom:1px solid var(--line)}
  nav.main .nav-head a.brand{display:flex;padding:0;background:none;border-radius:0;align-items:center;gap:10px}
  .nav-head .brand img{height:44px}
  .nav-head .brand b{font-size:1rem}
  .nav-head .brand small{display:block}
  .nav-close{width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--ink);display:grid;place-items:center;cursor:pointer;flex:none}
  .nav-close svg{width:20px;height:20px}
  .nav-close:active{background:var(--mist)}
  nav.main .nav-list{display:block;flex:1;overflow-y:auto;padding:6px 0;overscroll-behavior:contain}
  nav.main .nav-list>li{border-bottom:1px solid var(--line);position:relative}
  nav.main .nav-list>li.cta{border:0;padding:16px}
  nav.main a.top{display:flex;align-items:center;gap:14px;padding:15px 20px;border-radius:0;font-size:1.02rem;font-weight:600}
  nav.main a.top[aria-current=page]{background:var(--mist);color:var(--blue);box-shadow:inset 3px 0 0 var(--red)}
  nav.main .ni{display:block;width:22px;height:22px;color:var(--blue);flex:none}
  nav.main .has-sub a.top{padding-right:64px}
  .acc{display:grid;place-items:center;position:absolute;right:8px;top:6px;width:44px;height:44px;border:0;background:none;color:var(--ink);cursor:pointer;border-radius:50%}
  .acc .chev{width:20px;height:20px;transition:transform .3s}
  .has-sub.open .acc .chev{transform:rotate(180deg)}
  nav.main .sub{position:static;box-shadow:none;border:0;padding:0;min-width:0;background:var(--mist);border-radius:0;display:flex;flex-direction:column;max-height:0;overflow:hidden;transition:max-height .35s ease}
  nav.main .has-sub.open>.sub{max-height:420px}
  nav.main li:hover>.sub,nav.main li:focus-within>.sub{display:flex}
  nav.main .sub a{padding:12px 20px 12px 56px;border-radius:0;font-size:.96rem;font-weight:500;border-top:1px solid #dfe5ee;position:relative}
  nav.main .sub a::before{content:"";position:absolute;left:30px;top:50%;width:6px;height:6px;margin-top:-3px;border-radius:50%;background:var(--line)}
  nav.main .sub a[aria-current=page]{color:var(--blue);background:#e3e9f2}
  nav.main .sub a[aria-current=page]::before{background:var(--red)}
  nav.main .cta a{margin:0;text-align:center;padding:14px;font-size:1.02rem}
  .nav-foot{display:grid;grid-template-columns:1fr 1fr auto;gap:10px;padding:14px 16px calc(14px + env(safe-area-inset-bottom));border-top:1px solid var(--line);background:#fff}
  nav.main .nav-foot .btn{display:flex;justify-content:center;align-items:center;gap:8px;padding:12px 10px;font-size:.95rem;white-space:nowrap}
  nav.main .nav-foot .btn-red:hover{background:var(--red-d);color:#fff}
  nav.main .nav-foot .btn-wa:hover{background:#178a45;color:#fff}
  nav.main .nav-foot .btn svg{width:18px;height:18px}
  .nav-foot .nav-lang{color:var(--ink);border:1px solid var(--line);padding:0 12px;font-weight:600}
  /* stagger the items in once the drawer opens */
  nav.main .nav-list>li{opacity:0;transform:translateX(16px);transition:opacity .3s,transform .3s}
  nav.main.open .nav-list>li{opacity:1;transform:none}
  nav.main.open .nav-list>li:nth-child(2){transition-delay:.04s}
  nav.main.open .nav-list>li:nth-child(3){transition-delay:.08s}
  nav.main.open .nav-list>li:nth-child(4){transition-delay:.12s}
  nav.main.open .nav-list>li:nth-child(5){transition-delay:.16s}
  nav.main.open .nav-list>li:nth-child(6){transition-delay:.2s}
  nav.main.open .nav-list>li:nth-child(7){transition-delay:.24s}
  nav.main.open .nav-list>li:nth-child(8){transition-delay:.28s}
  nav.main.open .nav-list>li:nth-child(9){transition-delay:.32s}
  html.menu-open{overflow:hidden}
  .g4{grid-template-columns:repeat(2,minmax(0,1fr))}
  footer.site .cols{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr}
  .hero-img{aspect-ratio:16/10;order:-1;min-height:0}
  .slide figcaption{left:16px;right:auto;bottom:36px;padding:8px 12px;max-width:calc(100% - 32px);font-size:.8rem}
  .slide figcaption b{font-size:.98rem}
  .slide figcaption .tag,.slide figcaption a{display:none}
  .dots{left:16px;right:auto;bottom:16px}
  .slide::after{background:linear-gradient(0deg,var(--ink) 0,rgba(14,35,64,0) 35%)}
  .hero-copy{padding:28px 16px 48px}
  .split,.pd,.emi{grid-template-columns:1fr}
  .split.rev>:first-child{order:0}
  .pd-aside{position:static}
  .g3,.quotes,.specs,.areas{grid-template-columns:1fr 1fr}
  .register .wrap{grid-template-columns:1fr;gap:10px}
}
@media (max-width:640px){
  .hero-img{aspect-ratio:4/3.4}
  body{font-size:16px;padding-bottom:64px}
  .topbar .hide-sm{display:none}
  .brand img{height:48px}
  .brand small{display:none}
  .g2,.g3,.g4,.quotes,.specs,.areas,.plans{grid-template-columns:1fr}
  .form .row{grid-template-columns:1fr}
  .ticks{columns:1}
  .hero-facts{gap:18px}
  .hero-facts b{font-size:1.6rem}
  footer.site .cols{grid-template-columns:1fr;padding-top:48px}
  .wa-float{display:none}
  html.menu-open .mbar{visibility:hidden}
  .mbar{display:grid;grid-template-columns:repeat(3,1fr);position:fixed;left:0;right:0;bottom:0;z-index:60;background:#fff;border-top:1px solid var(--line);box-shadow:0 -6px 18px -10px rgba(0,0,0,.3)}
  .mbar a,.mbar button{display:flex;flex-direction:column;align-items:center;gap:2px;padding:9px 4px;font:inherit;font-size:.78rem;font-weight:650;text-decoration:none;color:var(--ink);background:none;border:0;cursor:pointer}
  .mbar svg{width:22px;height:22px}
  .mbar .m-wa{color:var(--wa)}
  .mbar .m-enq{background:var(--red);color:#fff}
  .frame::before{inset:-8px 8px 8px -8px}
}
.steps.tl li::before{display:none}

/* inner-page hero */
.hero.sm .hero-grid{min-height:min(56vh,480px)}
.hero.sm h1{font-size:clamp(1.9rem,3.6vw,2.8rem);max-width:18ch}
.hero.sm .hero-copy{padding-top:clamp(36px,5vw,64px);padding-bottom:clamp(36px,5vw,64px)}
.hero .crumbs{font-size:.88rem;margin-bottom:18px;color:#8FA3BD}
.hero .crumbs a{color:#fff;text-decoration:none}
.hero .crumbs a:hover{text-decoration:underline}
.hero.sm .dots{right:24px}
@media (max-width:900px){.hero.sm .hero-img{aspect-ratio:16/9}}

/* lightbox controls */
dialog.lb{overflow:visible}
.lb-prev,.lb-next{position:fixed;top:50%;transform:translateY(-50%);width:52px;height:52px;border-radius:50%;border:0;background:rgba(255,255,255,.92);color:var(--ink);font-size:1.8rem;line-height:1;cursor:pointer;z-index:2}
.lb-prev{left:16px}.lb-next{right:16px}
.lb-cap{color:#fff;text-align:center;font-size:.9rem;margin-top:10px}
/* videos */
.v-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.vid{position:relative;display:block;aspect-ratio:16/9;border:0;padding:0;border-radius:var(--r);overflow:hidden;background:var(--ink);cursor:pointer;width:100%}
.vid img{width:100%;height:100%;object-fit:cover;opacity:.85;transition:opacity .2s}
.vid:hover img{opacity:1}
.vid .play{position:absolute;left:50%;top:50%;width:64px;height:44px;margin:-22px 0 0 -32px;background:var(--red);border-radius:10px}
.vid .play::after{content:"";position:absolute;left:26px;top:13px;border-left:16px solid #fff;border-top:9px solid transparent;border-bottom:9px solid transparent}
.vid .vt{position:absolute;left:0;right:0;bottom:0;padding:24px 14px 12px;color:#fff;font-weight:600;font-size:.92rem;text-align:left;background:linear-gradient(0deg,rgba(14,35,64,.9),rgba(14,35,64,0))}
.vid.playing iframe{width:100%;height:100%;border:0;display:block}
.v-fallback{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;background:var(--ink);color:#C9D4E3;border-radius:var(--r);padding:28px 32px}
.v-fallback[hidden]{display:none}
.v-fallback h3{color:#fff;margin:0 0 4px}
.v-fallback p{margin:0}
.gal-sec{scroll-margin-top:100px}
@media (max-width:900px){.v-grid{grid-template-columns:1fr 1fr}}
@media (max-width:640px){.v-grid{grid-template-columns:1fr}.lb-prev,.lb-next{width:42px;height:42px;top:auto;bottom:16px;transform:none}}
/* blog */
.prose{max-width:72ch}
.prose h2{font-size:clamp(1.4rem,2.4vw,1.8rem);margin-top:1.6em}
.prose p{font-size:1.06rem}
.prose .ticks li b{color:var(--ink)}
.side-list{list-style:none;margin:0;padding:0}
.side-list li{border-bottom:1px solid var(--line)}
.side-list a{display:block;padding:12px 0;text-decoration:none;font-weight:550}
a.chip{text-decoration:none;display:inline-block}

/* ===== motion & mobile update ===== */
/* 1 · scroll reveal (class added by JS only, so nothing hides if JS fails) */
.rv{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.8,.2,1)}
.rv.in{opacity:1;transform:none}
/* 3 · header: shadow once scrolled, slides away on scroll down, back on scroll up */
header.site{transition:transform .35s ease,box-shadow .3s}
header.site.scrolled{box-shadow:0 8px 24px -16px rgba(14,35,64,.45)}
header.site.hide{transform:translateY(-100%)}
html.menu-open header.site{transform:none}
/* 4 · press feedback */
.btn,.proj,.chip,.mbar a,.mbar button,.area,.vid,.wa-float{-webkit-tap-highlight-color:transparent}
.btn:active,.chip:active,.mbar a:active,.mbar button:active,.nav-close:active,.acc:active{transform:scale(.96)}
.proj:active,.area:active,.vid:active{transform:scale(.985)}
.btn,.proj,.area,.chip{transition:background .2s,color .2s,border-color .2s,transform .12s}
/* 6/7 · swipe rows: dots are built by JS */
.swipe-dots{display:none}
/* 8 · project bar */
.pbar{display:none}
/* 11 · WhatsApp bubble */
.wa-bubble{position:fixed;right:88px;bottom:26px;z-index:61;max-width:270px;background:#fff;color:var(--text);border-radius:14px 14px 4px 14px;box-shadow:0 14px 34px -12px rgba(14,35,64,.45);padding:14px 40px 14px 16px;font-size:.93rem;line-height:1.45;opacity:0;transform:translateY(10px) scale(.96);transform-origin:bottom right;transition:opacity .35s,transform .35s cubic-bezier(.2,.8,.2,1);pointer-events:none}
.wa-bubble.show{opacity:1;transform:none;pointer-events:auto}
.wa-bubble b{display:block;color:var(--ink);margin-bottom:2px}
.wa-bubble a{display:inline-flex;align-items:center;gap:6px;margin-top:8px;color:var(--wa);font-weight:700;text-decoration:none}
.wa-bubble a svg{width:18px;height:18px}
.wa-bubble .wb-x{position:absolute;right:6px;top:6px;width:30px;height:30px;border:0;background:none;font-size:1.3rem;color:var(--muted);cursor:pointer;border-radius:50%}
.wa-float{transition:transform .2s}
.wa-float.ping{animation:ping 1.6s ease-out 2}
@keyframes ping{0%{box-shadow:0 0 0 0 rgba(31,168,85,.55)}100%{box-shadow:0 0 0 18px rgba(31,168,85,0)}}

@media (max-width:640px){
  .swipe{display:flex!important;overflow-x:auto;scroll-snap-type:x mandatory;gap:14px;margin-inline:-16px;padding:4px 16px 6px;scrollbar-width:none;-webkit-overflow-scrolling:touch;overscroll-behavior-x:contain}
  .swipe::-webkit-scrollbar{display:none}
  .swipe>*{flex:0 0 84%;scroll-snap-align:center;min-width:0}
  .swipe>.panel{flex-basis:84%}
  .swipe-dots{display:flex;justify-content:center;gap:6px;margin-top:14px}
  .swipe-dots button{width:8px;height:8px;border-radius:4px;border:0;padding:0;background:var(--line);transition:width .25s,background .25s;cursor:pointer}
  .swipe-dots button[aria-current=true]{width:22px;background:var(--red)}
  .pbar{display:grid;grid-template-columns:.8fr 1fr 1fr 1.2fr}
  .pbar .m-visit{color:var(--blue)}
  .pbar span{white-space:nowrap}
  .wa-bubble{right:12px;left:auto;bottom:78px;max-width:min(300px,calc(100vw - 24px));border-radius:14px 14px 4px 14px}
  .rv{transform:translateY(16px)}
}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none}.wa-float.ping{animation:none}}