/* AquaPure Chennai - shared styles. Change colours in :root below. */
:root{--bg:#EAF7FF;--surface:#fff;--ink:#0B2A4A;--muted:#47637F;--line:#BFE0F2;--deep:#0A4DA6;--aqua:#00B8D9;--drop:#D6F1FB;--cta:#FF8A1F;--cta-ink:#3A1C00;--green:#1FB574}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:400 17px/1.6 "Source Sans 3",system-ui,-apple-system,"Segoe UI",sans-serif}
h1,h2,h3{font-family:"Bricolage Grotesque","Trebuchet MS",system-ui,sans-serif;line-height:1.15;margin:0 0 .5em}
h1{font-size:clamp(2rem,6vw,3.6rem);font-weight:800}
h2{font-size:clamp(1.6rem,4vw,2.3rem);font-weight:700}
h3{font-size:1.15rem;font-weight:700}
p{margin:0 0 1em;max-width:62ch}
a{color:inherit}
:focus-visible{outline:3px solid var(--cta);outline-offset:3px}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
section{padding:64px 0}
.band{background:var(--drop)}
.btn{display:inline-block;padding:13px 22px;border-radius:999px;font:600 1rem "Source Sans 3",sans-serif;text-decoration:none;border:2px solid transparent;cursor:pointer}
.btn-cta{background:var(--cta);color:var(--cta-ink)}
.btn-wa{background:#25D366;color:#06260F}
.btn-ghost{border-color:currentColor;background:transparent;color:inherit}
header.top{position:sticky;top:0;z-index:5;background:var(--deep);color:#fff}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;min-height:60px;gap:12px;flex-wrap:wrap}
.logo{font:800 1.2rem "Bricolage Grotesque",sans-serif;text-decoration:none;display:flex;align-items:center;gap:8px}
.logo svg{width:22px;height:22px}
nav a{margin-left:16px;text-decoration:none;font-size:.95rem;padding:6px 0;opacity:.85}
nav a:hover,nav a.on{opacity:1;border-bottom:2px solid var(--cta)}
.hero{background:var(--deep);color:#fff;padding:60px 0 72px}
.hero p{color:#C9E7ED;font-size:1.15rem}
.hero .actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:22px}
.card p{margin:0;color:var(--muted)}
.card .price{font-weight:700;color:var(--deep);margin-top:10px}
.art{background:var(--drop);border-radius:12px;height:150px;display:grid;place-items:center;margin-bottom:14px}
.art svg{width:64px;height:64px}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0}
.chips span{background:var(--surface);border:1px solid var(--line);padding:8px 16px;border-radius:999px;font-size:.95rem}
.two{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start}
@media(max-width:760px){.two{grid-template-columns:1fr}}
.why{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px}
.why li{padding-left:34px;position:relative}
.why li::before{content:"";position:absolute;left:0;top:6px;width:20px;height:20px;border-radius:50%;background:var(--aqua)}
.why b{display:block}.why span{color:var(--muted)}
form.enq{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:24px;max-width:560px}
label{display:block;font-weight:600;font-size:.9rem;margin:12px 0 4px}
select,input,textarea{width:100%;padding:12px;border:1.5px solid var(--line);border-radius:10px;background:var(--bg);color:var(--ink);font:400 1rem "Source Sans 3",sans-serif}
.send{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.note{font-size:.85rem;color:var(--muted);margin:10px 0 0}
footer{background:var(--deep);color:#C9E7ED;padding:40px 0 90px}
footer a{color:#fff}
.float{position:fixed;right:16px;bottom:16px;background:#25D366;color:#06260F;font-weight:700;padding:14px 20px;border-radius:999px;text-decoration:none;box-shadow:0 6px 20px rgba(0,0,0,.3);z-index:6}
/* added: content sections */
details{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin-bottom:10px;max-width:800px}
summary{cursor:pointer;font-weight:600}
details p{margin:10px 0 0;color:var(--muted)}
.prose p{color:var(--ink)}
.prose h3{margin-top:1.4em}
.tbl{overflow-x:auto}
table{border-collapse:collapse;width:100%;background:var(--surface);border:1px solid var(--line);border-radius:12px}
th,td{padding:10px 14px;text-align:left;border-bottom:1px solid var(--line);font-size:.95rem}
th{background:var(--drop)}
.links a{margin-right:14px}

/* ===== v3: colourful design, banner, image slots, gallery ===== */
body{background:linear-gradient(180deg,#EAF7FF,#F7FCFF 40%)}
header.top{background:linear-gradient(90deg,#0A4DA6,#0098C8)}
.hero{background:linear-gradient(120deg,#0A4DA6,#0098C8 60%,#1FB574)}
.banner{background:linear-gradient(100deg,rgba(5,45,120,.88),rgba(0,140,200,.55)),url(images/banner.jpg) center/cover no-repeat,linear-gradient(120deg,#0A4DA6,#0098C8 60%,#1FB574);padding:96px 0 110px}
.banner h1{text-shadow:0 2px 12px rgba(0,0,0,.35)}
@media(max-width:700px){.banner{background:linear-gradient(180deg,rgba(5,45,120,.88),rgba(0,140,200,.6)),url(images/banner-mobile.jpg) center/cover no-repeat,linear-gradient(160deg,#0A4DA6,#0098C8 60%,#1FB574);padding:64px 0 76px}}
.band{background:linear-gradient(180deg,#D6F1FB,#E6F8F0)}
.card{border-top:5px solid var(--aqua);box-shadow:0 6px 18px rgba(10,77,166,.08)}
.grid>.card:nth-child(4n+2){border-top-color:var(--cta)}
.grid>.card:nth-child(4n+3){border-top-color:var(--green)}
.grid>.card:nth-child(4n){border-top-color:var(--deep)}
.chips span{border-color:var(--aqua);background:#F2FBFF}
.why li::before{background:var(--green)}
th{background:var(--deep);color:#fff}
.imgbox{position:relative;aspect-ratio:4/3;overflow:hidden;border-radius:14px;background:linear-gradient(135deg,#BDEBFA,#CFF5E4);display:grid;place-items:center}
.imgbox svg{width:30%;height:auto;opacity:.7}
.imgbox img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;cursor:zoom-in}
.pcard{padding:0;overflow:hidden}
.pcard .imgbox{border-radius:0;aspect-ratio:1/1}
.pcard .body{padding:18px 20px 22px}
.pcard .price{font:800 1.5rem "Bricolage Grotesque",sans-serif;color:var(--deep);margin:10px 0 2px}
.pcard .inc{font-size:.85rem;color:var(--green);font-weight:600;margin:0 0 12px}
.strip{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px}
.gal{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.gal figure{margin:0}
.gal figcaption{font-size:.9rem;color:var(--muted);padding:6px 2px}
#lb{position:fixed;inset:0;background:rgba(3,20,45,.92);display:none;align-items:center;justify-content:center;flex-direction:column;z-index:20;padding:16px}
#lb.on{display:flex}
#lb img{max-width:100%;max-height:80vh;border-radius:10px}
#lb p{color:#fff;margin-top:10px;text-align:center}