:root {
  --navy: #0B2E63;
  --blue: #1763C6;
  --grey: #4A5568;
  --amber: #F5B301;
  --tint: #F4F7FB;
  --line: #DCE3EE;
  --white: #FFFFFF;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 72px; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--white);
  color: var(--grey);
  font-family: "Poppins", "Noto Sans Devanagari", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.65;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; height: auto; }

a { color: var(--blue); }
a:focus-visible, .btn:focus-visible { outline: 3px solid var(--amber); outline-offset: 3px; }

h1, h2, h3, p { margin: 0; }
h1, h2, h3 { color: var(--navy); line-height: 1.15; }

.wrap { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 32px; }

.label {
  display: block;
  color: var(--blue);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.section { padding: 96px 0; }
.section.tint { background: var(--tint); }
.section h2 { font-size: clamp(30px, 4vw, 46px); font-weight: 800; letter-spacing: -0.01em; }
.section .lead { margin-top: 18px; max-width: 640px; font-size: 18px; }

.btn {
  display: inline-block;
  padding: 13px 26px;
  border-radius: 4px;
  background: var(--blue);
  color: var(--white);
  font-weight: 600;
  font-size: 16px;
  line-height: 1.2;
  text-decoration: none;
  border: 2px solid var(--blue);
}
.btn:hover { background: var(--navy); border-color: var(--navy); }
.btn.ghost { background: transparent; color: var(--navy); border-color: var(--navy); }
.btn.ghost:hover { background: var(--navy); color: var(--white); }
.btn.amber { background: var(--amber); border-color: var(--amber); color: var(--navy); }
.btn.amber:hover { background: var(--white); border-color: var(--white); }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: var(--white);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 20px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--navy); font-weight: 700; font-size: 18px; text-decoration: none; white-space: nowrap; }
.brand svg { width: 42px; height: 42px; flex: none; }
.nav { display: flex; align-items: center; gap: 30px; }
.nav a:not(.btn) { color: var(--navy); font-size: 15px; font-weight: 500; text-decoration: none; }
.nav a:not(.btn):hover { color: var(--blue); }
.nav .btn { padding: 9px 20px; font-size: 15px; }

/* Hero */
.hero { padding: 80px 0 0; }
.hero h1 { font-size: clamp(38px, 6.4vw, 84px); font-weight: 800; letter-spacing: -0.025em; line-height: 1.04; }
.hero h1 span { color: var(--blue); display: block; }
.hero .tagline { margin-top: 20px; color: var(--blue); font-size: clamp(20px, 2.4vw, 28px); font-weight: 600; line-height: 1.5; }
.hero .intro { margin-top: 22px; max-width: 700px; font-size: 19px; }
.hero .intro strong { color: var(--navy); font-weight: 600; }
.hero .actions { margin-top: 32px; display: flex; flex-wrap: wrap; gap: 14px; }
.hero-photo { margin-top: 64px; }
.hero-photo img { width: 100%; height: clamp(260px, 46vw, 640px); object-fit: cover; }

/* Stats band */
.stats { background: var(--blue); color: var(--white); }
.stats ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); }
.stats li { padding: 44px 28px; border-left: 1px solid rgba(255,255,255,0.3); }
.stats li:first-child { border-left: 0; padding-left: 0; }
.stats b { display: block; white-space: nowrap; font-size: clamp(25px, 3vw, 40px); font-weight: 800; line-height: 1.1; letter-spacing: -0.01em; }
.stats span { display: block; margin-top: 8px; font-size: 15px; font-weight: 500; letter-spacing: 0.04em; }

/* Products */
.products { margin-top: 52px; display: grid; grid-template-columns: repeat(6, 1fr); gap: 24px; list-style: none; padding: 0; }
.products li { grid-column: span 2; background: var(--navy); }
.products li:nth-child(-n+2) { grid-column: span 3; }
.products img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.products li:nth-child(-n+2) img { aspect-ratio: 16 / 9; }
.products h3 { color: var(--white); font-size: 20px; font-weight: 600; padding: 16px 22px 18px; }
.note {
  margin-top: 32px; padding: 22px 28px;
  background: var(--tint);
  color: var(--navy); font-weight: 600; font-size: 18px;
  display: flex; align-items: center; gap: 14px;
}
.note svg { width: 26px; height: 26px; flex: none; }

/* Why us */
.why { margin-top: 52px; display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.why ol { list-style: none; margin: 0; padding: 0; counter-reset: why; }
.why li { counter-increment: why; padding: 26px 0 26px 72px; border-top: 1px solid var(--line); position: relative; }
.why li:last-child { border-bottom: 1px solid var(--line); }
.why li::before {
  content: "0" counter(why);
  position: absolute; left: 0; top: 24px;
  color: var(--blue); font-size: 26px; font-weight: 800; line-height: 1.2;
}
.why h3 { font-size: 21px; font-weight: 700; }
.why li p { margin-top: 6px; font-size: 16px; }
.why img { width: 100%; height: 100%; min-height: 360px; object-fit: cover; }

/* Indisteel */
.indisteel { background: var(--navy); color: #E3EAF5; padding: 96px 0; }
.indisteel .label { color: var(--amber); }
.indisteel h2 { color: var(--white); font-size: clamp(30px, 4vw, 46px); font-weight: 800; }
.indisteel .top { display: grid; grid-template-columns: 200px 1fr; gap: 56px; align-items: center; }
.indisteel .top img { width: 200px; }
.indisteel .lead { margin-top: 18px; font-size: 18px; max-width: 640px; }
.indisteel .hi { margin-top: 16px; color: var(--amber); font-size: 24px; font-weight: 600; line-height: 1.5; }
.process { margin: 56px 0 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.process img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.process h3 { color: var(--white); font-size: 20px; font-weight: 600; margin-top: 16px; }
.process p { margin-top: 4px; font-size: 16px; }
.process p b { color: var(--amber); font-weight: 700; }
.ind-bottom { margin-top: 56px; padding-top: 40px; border-top: 1px solid rgba(255,255,255,0.22); display: grid; grid-template-columns: 1fr auto; gap: 40px; align-items: end; }
.ind-bottom h3 { color: var(--white); font-size: 15px; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; }
.chips { list-style: none; margin: 16px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 10px; }
.chips li { border: 1px solid rgba(255,255,255,0.45); color: var(--white); padding: 8px 16px; border-radius: 4px; font-size: 15px; font-weight: 500; }
.chips li.soon { border-color: var(--amber); color: var(--amber); }

/* Contact */
.contact { margin-top: 52px; display: grid; grid-template-columns: 1.15fr 1fr; gap: 56px; }
.people { list-style: none; margin: 0; padding: 0; }
.people li { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; padding: 20px 0; border-top: 1px solid var(--line); }
.people li:last-child { border-bottom: 1px solid var(--line); }
.people span { color: var(--navy); font-weight: 600; font-size: 18px; }
.people a { color: var(--blue); font-weight: 700; font-size: 22px; text-decoration: none; white-space: nowrap; }
.people a:hover { color: var(--navy); }
.enquiry { background: var(--tint); padding: 36px; }
.enquiry h3 { font-size: 24px; font-weight: 700; }
.enquiry p { margin-top: 8px; font-size: 16px; }
.enquiry .actions { margin-top: 24px; display: grid; gap: 12px; }
.enquiry .btn { text-align: center; }
.enquiry .mail { margin-top: 18px; font-size: 15px; word-break: break-word; }
.addresses { margin-top: 56px; display: grid; grid-template-columns: 1fr 1fr; gap: 56px; }
.addresses h3 { font-size: 18px; font-weight: 700; }
.addresses address { margin-top: 8px; font-style: normal; font-size: 16px; }

/* Footer */
.site-footer { background: var(--navy); color: #E3EAF5; padding: 36px 0; font-size: 14px; }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 32px; }
.site-footer a { color: var(--white); }

/* 404 */
.notfound { padding: 140px 0 160px; }
.notfound h1 { font-size: clamp(38px, 6vw, 72px); font-weight: 800; }
.notfound p { margin-top: 18px; font-size: 19px; }
.notfound .btn { margin-top: 32px; }

@media (max-width: 900px) {
  .nav a:not(.btn) { display: none; }
  .section, .indisteel { padding: 64px 0; }
  .stats ul { grid-template-columns: 1fr 1fr; }
  .stats li { padding: 28px 20px; }
  .stats li:nth-child(odd) { border-left: 0; padding-left: 0; }
  .stats li:nth-child(n+3) { border-top: 1px solid rgba(255,255,255,0.3); }
  .products li, .products li:nth-child(-n+2) { grid-column: span 3; }
  .products li:last-child { grid-column: span 6; }
  .why, .contact { grid-template-columns: 1fr; gap: 40px; }
  .why img { min-height: 0; aspect-ratio: 16 / 9; }
  .indisteel .top { grid-template-columns: 1fr; gap: 28px; }
  .indisteel .top img { width: 140px; }
  .process { grid-template-columns: 1fr; gap: 36px; }
  .ind-bottom { grid-template-columns: 1fr; align-items: start; gap: 28px; }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  .wrap { padding: 0 20px; }
  .brand { font-size: 16px; }
  .brand svg { width: 36px; height: 36px; }
  .nav .btn { padding: 8px 16px; font-size: 14px; }
  .hero { padding-top: 48px; }
  .hero .intro { font-size: 17px; }
  .hero-photo { margin-top: 44px; }
  .hero .actions .btn { flex: 1 1 100%; text-align: center; }
  .stats li { padding: 24px 14px; }
  .stats span { font-size: 14px; letter-spacing: 0; }
  .products { gap: 16px; }
  .products li, .products li:nth-child(-n+2), .products li:last-child { grid-column: span 6; }
  .products img, .products li:nth-child(-n+2) img { aspect-ratio: 16 / 9; }
  .note { padding: 18px 20px; font-size: 16px; }
  .why li { padding-left: 54px; }
  .why li::before { font-size: 22px; }
  .indisteel .hi { font-size: 21px; }
  .people li { flex-direction: column; gap: 2px; padding: 16px 0; }
  .enquiry { padding: 26px 20px; }
  .addresses { grid-template-columns: 1fr; gap: 28px; margin-top: 40px; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }