:root{
  --emerald:#0b5d45; --emerald-d:#073d2e; --emerald-l:#e8f3ee;
  --gold:#c9a24a; --gold-l:#f6edd6; --ink:#1d2a25; --muted:#5c6b65;
  --bg:#fbfaf6; --card:#ffffff; --line:#e4e0d4; --wa:#1fa855;
  --r:14px; --shadow:0 6px 24px rgba(7,61,46,.08);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Inter","Noto Sans Tamil",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;font-size:16px}
h1,h2,h3{font-family:"Playfair Display","Noto Serif Tamil",Georgia,serif;line-height:1.25;color:var(--emerald-d)}
a{color:var(--emerald);text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1140px;margin:0 auto;padding:0 20px}
html[lang="ta"] .en{display:none!important}
html:not([lang="ta"]) .ta{display:none!important}

/* header */
header.top{position:sticky;top:0;z-index:50;background:rgba(251,250,246,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--emerald-d);font-size:1.25rem}
.brand svg{width:38px;height:38px}
.brand small{display:block;font-size:.7rem;font-weight:500;color:var(--gold);letter-spacing:.08em;text-transform:uppercase;line-height:1}
.nav ul{display:flex;list-style:none;gap:22px;align-items:center}
.nav ul a{color:var(--ink);font-weight:500;font-size:.95rem}
.nav ul a:hover{color:var(--emerald)}
.lang{border:1px solid var(--gold);background:var(--gold-l);color:var(--emerald-d);border-radius:999px;padding:6px 12px;font-weight:600;cursor:pointer;font-size:.85rem}
.menu-btn{display:none;background:none;border:0;font-size:1.6rem;color:var(--emerald-d);cursor:pointer}
@media(max-width:820px){
  .menu-btn{display:block}
  .nav ul{display:none;position:absolute;top:68px;left:0;right:0;background:var(--bg);flex-direction:column;padding:16px 20px;border-bottom:1px solid var(--line);gap:14px;align-items:flex-start}
  .nav ul.open{display:flex}
}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 22px;border-radius:999px;font-weight:600;border:0;cursor:pointer;font-size:1rem;transition:transform .15s,box-shadow .15s}
.btn:hover{transform:translateY(-1px);box-shadow:var(--shadow)}
.btn-gold{background:var(--gold);color:#1f1a0c}
.btn-em{background:var(--emerald);color:#fff}
.btn-wa{background:var(--wa);color:#fff}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.6)}
.btn svg{width:20px;height:20px}

/* hero */
.hero{background:radial-gradient(1200px 500px at 85% -10%,rgba(201,162,74,.35),transparent 60%),linear-gradient(135deg,var(--emerald-d),var(--emerald));color:#fff;padding:88px 0 96px;position:relative;overflow:hidden}
.hero h1{color:#fff;font-size:clamp(2rem,4.6vw,3.3rem);max-width:760px}
.hero h1 em{color:var(--gold);font-style:normal}
.hero p.lead{font-size:1.15rem;max-width:620px;margin:18px 0 30px;color:#e2efe9}
.hero .ctas{display:flex;gap:12px;flex-wrap:wrap}
.hero .pattern{position:absolute;right:-60px;bottom:-60px;width:420px;opacity:.12}
.chips{display:flex;gap:10px;flex-wrap:wrap;margin-top:36px}
.chip{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);padding:7px 14px;border-radius:999px;font-size:.88rem}

/* notice */
.notice{background:var(--gold-l);border-bottom:1px solid #ead9ad;font-size:.92rem;text-align:center;padding:10px 20px;color:#5a4612}

/* sections */
section{padding:80px 0}
.eyebrow{color:var(--gold);font-weight:700;letter-spacing:.12em;text-transform:uppercase;font-size:.8rem;margin-bottom:8px}
.sec-head{max-width:680px;margin-bottom:40px}
.sec-head h2{font-size:clamp(1.7rem,3.2vw,2.4rem)}
.sec-head p{color:var(--muted);margin-top:10px}

/* projects */
.grid{display:grid;gap:24px;grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}
.proj{background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow)}
.proj .art{height:150px;position:relative;display:flex;align-items:flex-end;padding:16px;color:#fff;background-size:cover;background-position:center}
.proj .art .num{position:absolute;top:14px;right:16px;font-family:"Playfair Display",serif;font-size:2.6rem;opacity:.35;line-height:1}
.proj .art .plots{background:rgba(0,0,0,.28);padding:4px 10px;border-radius:999px;font-size:.82rem;font-weight:600}
.a1{background:linear-gradient(135deg,#0b5d45,#2f8f6a)}
.a2{background:linear-gradient(135deg,#123f73,#2c6fb3)}
.a3{background:linear-gradient(135deg,#6b4e12,#c9a24a)}
.a4{background:linear-gradient(135deg,#7a1f3d,#c0536f)}
.proj .body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.proj h3{font-size:1.3rem}
.proj .ta-name{font-size:.9rem;color:var(--gold);font-weight:600}
.proj .loc{color:var(--muted);font-size:.93rem;display:flex;gap:6px}
.proj .loc svg{width:18px;height:18px;flex:none;margin-top:3px;color:var(--emerald)}
.badges{display:flex;flex-wrap:wrap;gap:6px}
.badge{font-size:.75rem;font-weight:600;padding:4px 10px;border-radius:999px;background:var(--emerald-l);color:var(--emerald-d)}
.badge.gold{background:var(--gold-l);color:#6b4e12}
.badge.grey{background:#eeece6;color:#555}
.spec{font-size:.88rem;color:var(--muted);border-top:1px dashed var(--line);padding-top:10px;display:grid;grid-template-columns:auto 1fr;gap:4px 12px}
.spec b{color:var(--ink);font-weight:600}
.proj .actions{margin-top:auto;display:flex;gap:8px;flex-wrap:wrap;padding-top:6px}
.proj .actions a{font-size:.88rem;padding:9px 14px}
.btn-line{border:1.5px solid var(--emerald);color:var(--emerald);background:#fff}

/* why */
.why{background:var(--emerald-l)}
.why .grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr))}
.feat{background:#fff;border-radius:var(--r);padding:24px;border:1px solid #d4e7dd}
.feat .ic{width:44px;height:44px;border-radius:12px;background:var(--emerald);color:var(--gold);display:grid;place-items:center;margin-bottom:12px}
.feat .ic svg{width:24px;height:24px}
.feat h3{font-size:1.1rem;margin-bottom:6px;font-family:inherit;font-weight:700}
.feat p{color:var(--muted);font-size:.94rem}

/* timeline */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:18px;counter-reset:s}
.step{position:relative;padding:22px 22px 22px 64px;background:#fff;border:1px solid var(--line);border-radius:var(--r)}
.step::before{counter-increment:s;content:counter(s);position:absolute;left:20px;top:20px;width:30px;height:30px;border-radius:50%;background:var(--gold);color:#1f1a0c;font-weight:700;display:grid;place-items:center}
.step h3{font-size:1rem;font-family:inherit;font-weight:700}
.step p{font-size:.9rem;color:var(--muted)}

/* contact / forms */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:36px}
@media(max-width:860px){.contact-grid{grid-template-columns:1fr}}
.info-card{background:linear-gradient(135deg,var(--emerald-d),var(--emerald));color:#fff;border-radius:var(--r);padding:32px}
.info-card h3{color:#fff;margin-bottom:14px}
.info-card .row{display:flex;gap:12px;margin:16px 0;align-items:flex-start}
.info-card .row svg{width:22px;height:22px;color:var(--gold);flex:none;margin-top:2px}
.info-card a{color:#fff;font-weight:600}
form.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:28px;box-shadow:var(--shadow)}
.fgrid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:600px){.fgrid{grid-template-columns:1fr}}
.full{grid-column:1/-1}
label{display:block;font-weight:600;font-size:.88rem;margin-bottom:6px}
input,select,textarea{width:100%;padding:12px 14px;border:1px solid #d6d2c4;border-radius:10px;font:inherit;background:#fdfcf9}
input:focus,select:focus,textarea:focus{outline:2px solid var(--gold);border-color:var(--gold)}
textarea{min-height:100px;resize:vertical}
.hp{position:absolute;left:-9999px}
.small{font-size:.8rem;color:var(--muted)}
.checks{display:flex;flex-wrap:wrap;gap:8px 18px}
.checks label{font-weight:500;display:flex;gap:6px;align-items:center}
.checks input{width:auto}

/* jobs */
.job{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px;box-shadow:var(--shadow)}
.job h3{font-size:1.25rem;margin-bottom:4px}
.job .meta{display:flex;gap:6px;flex-wrap:wrap;margin:8px 0 12px}
.job ul{padding-left:18px;color:var(--muted);font-size:.94rem}
.job ul li{margin:4px 0}

/* footer */
footer{background:#06281f;color:#b9cdc5;padding:48px 0 28px;font-size:.92rem}
footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}
@media(max-width:760px){footer .cols{grid-template-columns:1fr}}
footer h4{color:var(--gold);margin-bottom:10px;font-size:.95rem}
footer a{color:#dbe8e2}
footer ul{list-style:none}
footer li{margin:6px 0}
.disclaimer{border-top:1px solid #1d4a3c;margin-top:30px;padding-top:18px;font-size:.78rem;color:#8aa69b}

/* whatsapp float */
.wa-float{position:fixed;right:18px;bottom:18px;z-index:60;width:58px;height:58px;border-radius:50%;background:var(--wa);display:grid;place-items:center;box-shadow:0 8px 24px rgba(0,0,0,.25)}
.wa-float svg{width:32px;height:32px;color:#fff}

.page-hero{background:linear-gradient(135deg,var(--emerald-d),var(--emerald));color:#fff;padding:64px 0}
.page-hero h1{color:#fff;font-size:clamp(1.9rem,4vw,2.8rem)}
.page-hero p{color:#e2efe9;max-width:640px;margin-top:10px}
.center{text-align:center}

/* layouts */
.layouts{display:grid;grid-template-columns:1.7fr 1fr;gap:24px;align-items:start}
@media(max-width:860px){.layouts{grid-template-columns:1fr}}
.lay{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow)}
.lay img{width:100%;height:auto}
.lay figcaption{padding:16px 18px;font-size:.93rem;color:var(--muted)}
.lay figcaption>b{color:var(--emerald-d)}
.lm{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.lm>span{background:var(--emerald-l);color:var(--emerald-d);border-radius:999px;padding:5px 12px;font-size:.8rem}
.lm b{color:var(--emerald)}