/* Layout idea: a site-visit report. Big condensed headings, full-bleed progress sliders, quiet blue-grey page. */
:root{
  --ink:#10281a;
  --ink-soft:#3d5446;
  --paper:#f5faf5;
  --card:#ffffff;
  --water:#1f7a3d;
  --lime:#8cc63f;
  --leaf:#2d8a3e;
  --line:#d3e4d6;
  --display:'Big Shoulders Display','Arial Narrow',Impact,sans-serif;
  --body:'Barlow','Segoe UI',Arial,sans-serif;
  --gutter:clamp(16px,4vw,48px);
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --ink:#e8f5ec;--ink-soft:#b3cbb9;--paper:#0a1a10;--card:#11281a;--water:#6fcf8a;--lime:#8cc63f;--leaf:#8cc63f;--line:#24432e;color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --ink:#e8f5ec;--ink-soft:#b3cbb9;--paper:#0a1a10;--card:#11281a;--water:#6fcf8a;--lime:#8cc63f;--leaf:#8cc63f;--line:#24432e;color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.6}
img{max-width:100%;display:block}
a{color:var(--water)}
a:focus-visible,input:focus-visible,button:focus-visible{outline:3px solid var(--leaf);outline-offset:3px}
h1,h2,h3{font-family:var(--display);text-transform:uppercase;letter-spacing:.01em;line-height:.95;margin:0;text-wrap:balance}
p{margin:0}
.wrap{max-width:1180px;margin:0 auto;padding:0 var(--gutter)}

/* header */
.top{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--paper) 92%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:8px;padding-bottom:8px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}
.brand .chip{background:#fff;border-radius:8px;padding:4px 8px}
.brand img{height:44px;width:auto}
nav{display:flex;gap:clamp(12px,2.5vw,28px);flex-wrap:wrap}
nav a{color:var(--ink);text-decoration:none;font-weight:600;font-size:.95rem;letter-spacing:.03em;text-transform:uppercase;padding:6px 0;border-bottom:2px solid transparent}
nav a:hover{border-color:var(--leaf)}

/* hero */
.hero{position:relative;color:#fff;background:#0f2e1b}
.hero img.bg{width:100%;height:clamp(460px,66vw,680px);object-fit:cover;object-position:60% 50%;opacity:.78}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(6,28,14,.9) 0%,rgba(6,28,14,.55) 55%,rgba(6,28,14,.05) 100%)}
.hero .copy{position:absolute;inset:0;z-index:1;display:flex;align-items:flex-end}
.hero .copy .wrap{width:100%;padding-bottom:clamp(24px,5vw,56px)}
.hero h1{font-size:clamp(2.6rem,7.6vw,6.4rem);font-weight:900;max-width:12ch}
.hero p.lead{max-width:44ch;margin-top:16px;font-size:clamp(1rem,1.6vw,1.25rem);color:#eef7f0}
.motto{margin-top:20px;font-size:.84rem;letter-spacing:.28em;text-transform:uppercase;color:#bfe8c8;font-weight:600}

/* fact strip */
.facts{background:var(--card);border-bottom:1px solid var(--line)}
.facts ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr))}
.facts li{padding:22px var(--gutter);border-left:1px solid var(--line)}
.facts li:first-child{border-left:0}
.facts b{display:block;font-family:var(--display);font-size:2.4rem;font-weight:800;line-height:1;color:var(--water);font-variant-numeric:tabular-nums}
.facts span{color:var(--ink-soft);font-size:.9rem}

section{padding:clamp(48px,8vw,96px) 0}
.eyebrow{font-weight:600;letter-spacing:.18em;text-transform:uppercase;font-size:.84rem;color:var(--leaf);margin-bottom:10px}
h2{font-size:clamp(2.2rem,5.5vw,4rem);font-weight:800}
.intro{max-width:62ch;margin-top:16px;color:var(--ink-soft)}

/* project blocks */
.project{margin-top:clamp(36px,6vw,64px)}
.project+.project{border-top:1px solid var(--line);padding-top:clamp(36px,6vw,64px)}
.ptitle{display:flex;flex-wrap:wrap;align-items:baseline;gap:8px 24px;justify-content:space-between}
.ptitle h3{font-size:clamp(1.8rem,4vw,3rem);font-weight:800}
.tag{font-weight:600;font-size:.85rem;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-soft)}
.pmeta{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px 32px;margin:20px 0 28px;padding:0;list-style:none}
.pmeta li{border-top:3px solid var(--water);padding-top:8px;color:var(--ink-soft);font-size:.95rem}
.pmeta b{display:block;color:var(--ink);font-family:var(--display);font-size:1.3rem;text-transform:uppercase;letter-spacing:.02em;font-weight:700}
.press{margin:0 0 28px;padding:12px 16px;border-left:4px solid var(--leaf);background:var(--card);font-size:.95rem}

/* before/after slider */
.pairs{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.pairs .wide{grid-column:1/-1}
@media (max-width:720px){.pairs{grid-template-columns:1fr}}
figure.ba{margin:0}
.frame{--p:50%;position:relative;overflow:hidden;border-radius:6px;background:#0f2e1b;aspect-ratio:4/3;touch-action:pan-y;user-select:none;-webkit-user-select:none}
.wide .frame{aspect-ratio:16/9}
.frame img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;pointer-events:none}
.frame .after{clip-path:inset(0 0 0 var(--p))}
.frame .rule{position:absolute;top:0;bottom:0;left:var(--p);width:3px;margin-left:-1.5px;background:#fff;box-shadow:0 0 0 1px rgba(0,0,0,.25);pointer-events:none}
.frame .knob{position:absolute;top:50%;left:var(--p);width:44px;height:44px;margin:-22px 0 0 -22px;border-radius:50%;background:#fff;color:#0f2e1b;display:grid;place-items:center;font-weight:700;box-shadow:0 2px 10px rgba(0,0,0,.35);pointer-events:none;font-size:15px;letter-spacing:-1px}
.frame input{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;cursor:ew-resize}
.frame:focus-within .knob{outline:3px solid var(--leaf);outline-offset:2px}
.lab{position:absolute;bottom:10px;padding:3px 9px;border-radius:3px;font-size:.8rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:#fff;background:rgba(6,28,14,.82);pointer-events:none}
.lab.l{left:10px}.lab.r{right:10px;background:rgba(32,120,56,.9)}
figcaption{display:flex;flex-wrap:wrap;gap:2px 12px;margin-top:8px;font-size:.92rem;color:var(--ink-soft)}
figcaption b{color:var(--ink);font-family:var(--display);font-size:1.25rem;text-transform:uppercase;letter-spacing:.02em;font-weight:700}
.hint{margin:0 0 14px;color:var(--ink-soft);font-size:.9rem}

/* photo grids */
.sub{font-family:var(--display);font-size:1.5rem;font-weight:700;text-transform:uppercase;margin:40px 0 14px}
.gal{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}
.gal figure{margin:0}
.gal img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:6px}
.gal .w2{grid-column:span 2}
.gal .w2 img{aspect-ratio:16/8}
@media (max-width:620px){.gal .w2{grid-column:auto}.gal .w2 img{aspect-ratio:4/3}}
.pkd-grid{display:grid;grid-template-columns:2fr 1fr;gap:20px;margin-top:20px;align-items:start}
@media (max-width:820px){.pkd-grid{grid-template-columns:1fr}}
.pkd-grid .tro img{width:100%;max-height:560px;object-fit:contain;background:var(--card);border-radius:6px;padding:8px;border:1px solid var(--line)}
.pkd-grid .dr img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:6px}

/* services & credentials */
.svc{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;margin-top:32px}
.svc div{background:var(--card);border:1px solid var(--line);border-radius:6px;padding:22px}
.svc h3{font-size:1.7rem;font-weight:800;margin-bottom:8px}
.svc p{color:var(--ink-soft);font-size:.96rem}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin:28px 0 0;padding:0;list-style:none}
.chips li{border:1px solid var(--line);background:var(--card);border-radius:999px;padding:7px 16px;font-weight:500;font-size:.95rem}
.chips li.key{border-color:var(--leaf);color:var(--leaf);font-weight:600}
.alt{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* contact */
.offices{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px;margin-top:32px}
.offices h3{font-size:1.5rem;font-weight:800;margin-bottom:6px}
.offices address{font-style:normal;color:var(--ink-soft);font-size:.96rem}
.todo{display:inline-block;margin-top:6px;padding:2px 10px;border:1px dashed var(--ink-soft);border-radius:4px;color:var(--ink-soft);font-size:.85rem}

footer{background:#0a1a10;color:#d3e4d6;padding:36px 0;font-size:.92rem}
footer .wrap{display:flex;flex-wrap:wrap;gap:18px 40px;align-items:center;justify-content:space-between}
footer .ded{display:flex;align-items:center;gap:14px}
footer .ded img{height:54px;width:54px;border-radius:50%;background:#fff}
footer em{color:#bfe8c8;font-style:normal}

/* v2 additions */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:32px;border:1px solid var(--line);border-radius:6px;overflow:hidden;background:var(--card)}
@media (max-width:820px){.steps{grid-template-columns:1fr}}
.step{padding:26px;border-left:1px solid var(--line)}
.step:first-child{border-left:0}
@media (max-width:820px){.step{border-left:0;border-top:1px solid var(--line)}.step:first-child{border-top:0}}
.step .n{font-family:var(--display);font-weight:900;font-size:3.4rem;line-height:1;color:var(--leaf)}
.step h3{font-size:2.2rem;font-weight:900;margin:6px 0 10px}
.step ul{margin:0;padding-left:18px;color:var(--ink-soft);font-size:.97rem}
.step li{margin:3px 0}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px;margin-top:28px}
.card{background:var(--card);border:1px solid var(--line);border-radius:6px;padding:22px}
.card h3{font-size:1.6rem;font-weight:800;margin-bottom:8px}
.card p,.card li{color:var(--ink-soft);font-size:.96rem}
.card ul{margin:0;padding-left:18px}
.card .k{display:block;font-weight:600;letter-spacing:.1em;text-transform:uppercase;font-size:.82rem;color:var(--leaf);margin:12px 0 4px}
.card .k:first-child{margin-top:0}
.stages{counter-reset:st;display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px;margin-top:28px}
.stage{background:var(--card);border:1px solid var(--line);border-top:4px solid var(--water);border-radius:6px;padding:20px}
.stage h3{font-size:1.5rem;font-weight:800;margin-bottom:8px}
.stage h3::before{counter-increment:st;content:counter(st) ".";color:var(--water);margin-right:6px}
.stage ul{margin:0;padding-left:18px;color:var(--ink-soft);font-size:.95rem}
.stage ul ul{margin-top:2px}
.tblwrap{overflow-x:auto;margin-top:28px;border:1px solid var(--line);border-radius:6px;background:var(--card)}
table{border-collapse:collapse;width:100%;min-width:640px;font-size:.95rem}
th,td{text-align:left;padding:10px 14px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-family:var(--display);text-transform:uppercase;letter-spacing:.05em;font-size:1.05rem;color:var(--ink)}
td.n,th.n{width:44px;color:var(--ink-soft);font-variant-numeric:tabular-nums}
td.x{white-space:nowrap;font-variant-numeric:tabular-nums}
tr:last-child td{border-bottom:0}
.masters{list-style:none;margin:28px 0 0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}
.masters li{padding:14px 16px;border-left:4px solid var(--leaf);background:var(--card);font-weight:500}
.ph{font-family:var(--display);font-size:2.6rem;font-weight:800;line-height:1}
.ph a{text-decoration:none;color:var(--water)}
.pill{display:inline-block;border:1px solid var(--line);background:var(--card);border-radius:999px;padding:5px 14px;margin:0 8px 8px 0;font-size:.93rem}
.pills{margin-top:10px}
.todo2{display:block;margin-top:24px;padding:16px 18px;border:1px dashed var(--ink-soft);border-radius:6px;color:var(--ink-soft);font-size:.95rem}
.hero .copy .wrap .sub{max-width:46ch}
nav{row-gap:0}

.lede2{color:var(--ink-soft);margin:0 0 14px}
.ddbar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:14px}
.ddbar input{flex:1 1 260px;min-width:0;padding:11px 14px;border:1px solid var(--line,#c9dccd);border-radius:6px;background:var(--card);color:inherit;font:inherit}
.ddbar button{padding:10px 14px;border:1px solid var(--line,#c9dccd);border-radius:6px;background:transparent;color:inherit;font:inherit;cursor:pointer}
.ddsec{border:1px solid var(--line,#c9dccd);border-radius:8px;margin-bottom:10px;background:var(--card)}
.ddsec summary{display:flex;align-items:center;gap:14px;padding:14px 16px;cursor:pointer;list-style:none;font-weight:600}
.ddsec summary::-webkit-details-marker{display:none}
.ddsec summary::after{content:"+";margin-left:8px;font-size:1.3rem;line-height:1;color:var(--water,#1f7a3d)}
.ddsec[open] summary::after{content:"\2212"}
.ddsec summary:focus-visible{outline:2px solid #1f7a3d;outline-offset:2px}
.ddn{font-family:'Big Shoulders Display',sans-serif;font-size:1.3rem;color:var(--water,#1f7a3d)}
.ddt2{flex:1}
.ddc{font-size:.85rem;padding:2px 10px;border-radius:99px;background:rgba(31,122,61,.12);color:var(--water,#1f7a3d)}
.dddesc{margin:0;padding:0 16px 10px;color:var(--ink-soft);font-size:.95rem}
.ddsec .tblwrap{max-height:480px;overflow:auto;margin:0 8px 10px}
.ddt{width:100%;border-collapse:collapse;font-size:.92rem}
.ddt th{position:sticky;top:0;background:var(--card);text-align:left}
.ddt td:first-child,.ddt th:first-child{width:3.2em;white-space:nowrap}
.ddnote,.ddnone{color:var(--ink-soft);font-size:.9rem}
.mgal{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;margin-top:28px}.mgal figure{margin:0;background:var(--card);border:1px solid var(--line);border-radius:8px;overflow:hidden}.mgal img{display:block;width:100%;aspect-ratio:13/8;object-fit:cover}.mgal figcaption{padding:12px 14px;font-weight:600;border-top:3px solid var(--leaf)}

.gdd{border:1px solid var(--line);border-radius:8px;background:var(--card);padding:0 clamp(14px,3vw,28px);margin-top:14px}
.gdd+.gdd{border-top:1px solid var(--line);padding-top:0}
.gdd>summary{cursor:pointer;list-style:none;padding:18px 0;position:relative;padding-right:34px}
.gdd>summary::-webkit-details-marker{display:none}
.gdd>summary::after{content:"+";position:absolute;right:0;top:18px;font-size:1.8rem;line-height:1;color:var(--water)}
.gdd[open]>summary::after{content:"\2212"}
.gdd>summary:focus-visible{outline:2px solid var(--water);outline-offset:2px}
.gdd>summary h3{font-size:clamp(1.3rem,3vw,2rem)}
.gdd[open]{padding-bottom:28px}
.gal.pano{grid-template-columns:1fr}.gal.pano .w2{grid-column:auto}.gal.pano img{aspect-ratio:auto}
.gal.tall{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}.gal.tall img{aspect-ratio:3/4}

img{-webkit-user-drag:none;user-drag:none;-webkit-touch-callout:none;-webkit-user-select:none;user-select:none}
figure img,.hero img.bg,.pkd-grid img{pointer-events:none}
.wm{position:absolute;pointer-events:none;z-index:3;background:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='300' height='170'><g transform='rotate(-28 150 85)' font-family='Arial,sans-serif' font-weight='700' font-size='19' text-anchor='middle'><text x='151' y='88' fill='rgba(0,0,0,.22)'>SAINATH ENVIROTECH</text><text x='150' y='86' fill='rgba(255,255,255,.45)'>SAINATH ENVIROTECH</text></g></svg>") repeat}
@media print{img,.wm{display:none!important}}

.prodgrid{display:grid;grid-template-columns:1.5fr 1fr;gap:20px;margin-top:32px}
@media(max-width:820px){.prodgrid{grid-template-columns:1fr}}
.pcard{position:relative;background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:28px;overflow:hidden}
.pcard::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:linear-gradient(90deg,var(--water),var(--lime))}
.pico{width:52px;height:52px;border-radius:12px;display:grid;place-items:center;background:rgba(31,122,61,.12);color:var(--water);margin-bottom:16px}
.pcard h3{font-size:1.9rem;font-weight:800;margin-bottom:10px}
.pcard p{color:var(--ink-soft);font-size:.98rem}
.pstat{display:flex;align-items:baseline;flex-wrap:wrap;gap:6px 14px;margin:0 0 14px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.pstat b{font-family:var(--display);font-size:2.2rem;font-weight:800;color:var(--water);line-height:1}
.pstat span{font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;font-weight:600;color:var(--leaf)}
.mgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:14px}.mg2{grid-template-columns:repeat(3,1fr)}@media(max-width:560px){.mgrid,.mg2{grid-template-columns:repeat(2,1fr)}}
.mt{padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:var(--card);font-weight:600;font-size:.92rem;text-align:center}
.mt.hy{border-color:var(--leaf);color:var(--leaf)}
.pcard .pnote{margin-top:14px;font-size:.88rem}
.zld{margin-top:20px;background:#0f2e1b;color:#fff;border-radius:10px;padding:clamp(22px,4vw,36px)}
.zhead{display:flex;gap:18px;align-items:center;margin-bottom:24px}
.zhead .pico{background:rgba(255,255,255,.12);color:#a8e6b8;margin:0;flex:none}
.zhead h3{font-size:clamp(1.7rem,3.5vw,2.4rem);font-weight:800}
.zhead p{color:#cfe3d4;margin-top:2px}
.zsteps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
@media(max-width:900px){.zsteps{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.zsteps{grid-template-columns:1fr}}
.zsteps li{position:relative;padding:18px;border:1px solid rgba(255,255,255,.16);border-radius:8px;background:rgba(255,255,255,.05)}
.zn{display:block;font-family:var(--display);font-size:2rem;font-weight:800;color:#7fdc92;line-height:1;margin-bottom:8px}
.zsteps h4{font-size:1.05rem;font-weight:700;margin-bottom:6px}
.zsteps p{color:#d2e4d7;font-size:.9rem}
@media(min-width:901px){.zsteps li:not(:last-child)::after{content:"\2192";position:absolute;right:-13px;top:50%;transform:translateY(-50%);z-index:2;width:22px;height:22px;border-radius:50%;background:var(--leaf);color:#fff;display:grid;place-items:center;font-size:.8rem}}
.zlist{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:10px}.zlist li{padding:9px 16px;border:1px solid rgba(255,255,255,.2);border-radius:999px;background:rgba(255,255,255,.07);color:#eef7f0;font-weight:500;font-size:.95rem}

nav a[aria-current=page]{color:var(--water);box-shadow:inset 0 -2px 0 var(--leaf)}
.explore{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin-top:28px}
.explore a{display:block;padding:22px;border:1px solid var(--line);border-radius:10px;background:var(--card);color:inherit;text-decoration:none;position:relative;overflow:hidden}
.explore a::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:linear-gradient(90deg,var(--water),var(--lime))}
.explore b{display:block;font-family:var(--display);font-size:1.7rem;font-weight:800;margin-bottom:6px}
.explore span{color:var(--ink-soft);font-size:.96rem}
.explore a:hover b,.explore a:focus-visible b{color:var(--water)}
body{display:flex;flex-direction:column;min-height:100vh}main{flex:1}