/* Sanmish - Gas Chromatograph India landing page
   Brand: green #8fd948, navy #011627, off-white #f9f8f8, Montserrat */

:root {
  --green: #8fd948;
  --green-dark: #3f8a0f;
  --navy: #011627;
  --navy-2: #0a2740;
  --offwhite: #f9f8f8;
  --text: #1c2b3a;
  --muted: #5a6b7b;
  --line: #e3e8ec;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(1, 22, 39, .10);
  --font: "Montserrat", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: #fff;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--green-dark); }
h1, h2, h3 { color: var(--navy); line-height: 1.2; margin: 0 0 .6em; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 700; }
h3 { font-size: 1.1rem; font-weight: 700; }
p { margin: 0 0 1em; }
ul { margin: 0; padding: 0; list-style: none; }

.container { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 860px; }

.skip-link {
  position: absolute; left: -999px; top: 8px; background: var(--navy); color: #fff;
  padding: 8px 14px; border-radius: 6px; z-index: 200;
}
.skip-link:focus { left: 8px; }

:focus-visible { outline: 3px solid var(--green); outline-offset: 2px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 11px 22px; border-radius: 999px; font-weight: 700; font-size: .95rem;
  text-decoration: none; border: 2px solid transparent; cursor: pointer;
  transition: transform .15s ease, background .15s ease, color .15s ease, border-color .15s ease;
  white-space: nowrap; font-family: inherit;
}
.btn:hover { transform: translateY(-1px); }
.btn-lg { padding: 14px 28px; font-size: 1rem; }
.btn-primary { background: var(--green); color: var(--navy); border-color: var(--green); }
.btn-primary:hover { background: #a3e566; border-color: #a3e566; }
.btn-outline { color: var(--navy); border-color: var(--navy); background: transparent; }
.btn-outline:hover { background: var(--navy); color: #fff; }
.btn-outline-dark { color: var(--navy); border-color: var(--navy); background: transparent; }
.btn-outline-dark:hover { background: var(--navy); color: #fff; }
.btn-outline-light { color: #fff; border-color: #fff; background: transparent; }
.btn-ghost { color: #fff; border-color: rgba(255,255,255,.7); background: transparent; }
.btn-ghost:hover { background: #fff; color: var(--navy); border-color: #fff; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 100; background: #fff;
  border-bottom: 1px solid var(--line);
}
.site-header.scrolled { box-shadow: 0 4px 18px rgba(1, 22, 39, .08); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 72px; }
.brand img { height: 52px; width: auto; }
.site-nav { display: flex; align-items: center; gap: 28px; }
.site-nav ul { display: flex; gap: 22px; }
.site-nav ul a { color: var(--navy); text-decoration: none; font-weight: 600; font-size: .9rem; }
.site-nav ul a:hover { color: var(--green-dark); }
.nav-cta { display: flex; gap: 10px; }

.nav-toggle {
  display: none; background: none; border: 0; padding: 10px; cursor: pointer;
}
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--navy); margin: 5px 0; transition: transform .2s, opacity .2s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Hero */
.hero {
  background:
    radial-gradient(900px 400px at 85% 10%, rgba(143, 217, 72, .22), transparent 60%),
    linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 100%);
  color: #fff;
  padding: 64px 0 72px;
}
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; }
.eyebrow {
  display: inline-block; text-transform: uppercase; letter-spacing: .12em; font-size: .78rem;
  font-weight: 700; color: var(--green); margin-bottom: 14px;
}
.eyebrow.dark { color: var(--green-dark); }
.hero h1 { color: #fff; font-size: clamp(2rem, 4.4vw, 3.2rem); font-weight: 800; }
.lead { font-size: 1.1rem; color: rgba(255,255,255,.88); max-width: 560px; }
.hero-points { margin: 22px 0 28px; display: grid; gap: 10px; }
.hero-points li { position: relative; padding-left: 28px; color: rgba(255,255,255,.92); font-weight: 500; }
.hero-points li::before {
  content: ""; position: absolute; left: 0; top: .45em; width: 14px; height: 8px;
  border-left: 3px solid var(--green); border-bottom: 3px solid var(--green); transform: rotate(-45deg);
}
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-media {
  background: #fff; border-radius: 20px; padding: 10px; box-shadow: 0 24px 60px rgba(0,0,0,.35);
}
.hero-media img { border-radius: 12px; width: 100%; }

/* Facts strip */
.facts { background: var(--offwhite); border-bottom: 1px solid var(--line); }
.facts-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; padding-top: 24px; padding-bottom: 24px; }
.facts-grid div { display: flex; flex-direction: column; }
.facts-grid strong { color: var(--navy); font-size: .98rem; }
.facts-grid span { color: var(--muted); font-size: .85rem; }

/* Sections */
.section { padding: 80px 0; }
.section-alt { background: var(--offwhite); }
.section-head { max-width: 720px; margin-bottom: 40px; }
.section-head p { color: var(--muted); }
.two-col { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: start; }

.spec-card {
  background: #fff; border: 1px solid var(--line); border-top: 5px solid var(--green);
  border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow);
}
.spec-card dl { margin: 0 0 12px; }
.spec-card dl > div { display: grid; grid-template-columns: 110px 1fr; gap: 14px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.spec-card dl > div:last-child { border-bottom: 0; }
.spec-card dt { font-weight: 700; color: var(--navy); font-size: .88rem; }
.spec-card dd { margin: 0; font-size: .92rem; }
.note { font-size: .82rem; color: var(--muted); margin: 0; }

/* Cards */
.cards { display: grid; gap: 20px; }
.cards-3 { grid-template-columns: repeat(3, 1fr); }
.cards-4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px;
  transition: transform .2s, box-shadow .2s;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.card p { margin: 0; color: var(--muted); font-size: .94rem; }
.card-icon .icon {
  display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px;
  border-radius: 12px; background: var(--navy); color: var(--green); font-weight: 800; font-size: .9rem; margin-bottom: 16px;
}

/* Related links */
.link-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.link-grid a {
  display: block; height: 100%; padding: 20px; background: #fff; border: 1px solid var(--line);
  border-left: 4px solid var(--green); border-radius: 10px; text-decoration: none; color: var(--text);
  transition: transform .2s, box-shadow .2s;
}
.link-grid a:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.link-grid strong { display: block; color: var(--navy); font-size: .95rem; margin-bottom: 4px; }
.link-grid span { font-size: .84rem; color: var(--muted); }

/* FAQ */
.faq { border: 1px solid var(--line); border-radius: 12px; margin-bottom: 12px; background: #fff; overflow: hidden; }
.faq summary {
  cursor: pointer; list-style: none; padding: 18px 56px 18px 22px; font-weight: 700; color: var(--navy);
  position: relative;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; position: absolute; right: 22px; top: 50%; transform: translateY(-50%);
  font-size: 1.5rem; color: var(--green-dark); font-weight: 700;
}
.faq[open] summary::after { content: "\2212"; }
.faq[open] summary { border-bottom: 1px solid var(--line); }
.faq p { padding: 18px 22px 4px; margin: 0 0 14px; color: var(--muted); }

/* CTA band */
.cta-band { background: linear-gradient(135deg, var(--navy), var(--navy-2)); color: #fff; padding: 56px 0; }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 28px; flex-wrap: wrap; }
.cta-band h2 { color: #fff; margin-bottom: .3em; }
.cta-band p { margin: 0; color: rgba(255,255,255,.8); }

/* Footer */
.site-footer { background: #010f1b; color: rgba(255,255,255,.8); padding-top: 56px; font-size: .92rem; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1.3fr; gap: 40px; }
.footer-grid img { width: 130px; margin-bottom: 12px; }
.site-footer h3 { color: #fff; font-size: 1rem; }
.site-footer li { margin-bottom: 8px; }
.site-footer a { color: rgba(255,255,255,.85); text-decoration: none; }
.site-footer a:hover { color: var(--green); }
.site-footer address { font-style: normal; line-height: 1.9; }
.footer-bottom { margin-top: 40px; padding: 20px; border-top: 1px solid rgba(255,255,255,.12); }
.footer-bottom p { margin: 0; font-size: .8rem; color: rgba(255,255,255,.6); }

/* Sticky mobile CTA */
.sticky-cta { display: none; }

/* Responsive */
@media (max-width: 1080px) {
  .cards-4, .link-grid { grid-template-columns: repeat(2, 1fr); }
  .site-nav { gap: 18px; }
  .site-nav ul { gap: 16px; }
}

@media (max-width: 991px) {
  .nav-toggle { display: block; }
  .site-nav {
    position: absolute; left: 0; right: 0; top: 100%; background: #fff; flex-direction: column;
    align-items: stretch; padding: 8px 20px 22px; border-bottom: 1px solid var(--line);
    box-shadow: 0 14px 24px rgba(1, 22, 39, .1); display: none;
  }
  .site-nav.open { display: flex; }
  .site-nav ul { flex-direction: column; gap: 0; }
  .site-nav ul a { display: block; padding: 14px 0; border-bottom: 1px solid var(--line); }
  .nav-cta { margin-top: 16px; }
  .nav-cta .btn { flex: 1; }

  .hero { padding: 44px 0 52px; }
  .hero-grid, .two-col { grid-template-columns: 1fr; gap: 32px; }
  .hero-media { order: -1; }
  .facts-grid { grid-template-columns: repeat(2, 1fr); }
  .cards-3 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .section { padding: 60px 0; }
}

@media (max-width: 640px) {
  .brand img { height: 44px; }
  .cards-3, .cards-4, .link-grid, .footer-grid { grid-template-columns: 1fr; }
  .cta-row .btn { flex: 1 1 100%; white-space: normal; text-align: center; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .spec-card dl > div { grid-template-columns: 1fr; gap: 2px; }

  /* Sticky call / enquire bar on phones */
  .sticky-cta {
    display: flex; gap: 10px; position: fixed; left: 0; right: 0; bottom: 0; z-index: 90;
    padding: 10px 14px calc(10px + env(safe-area-inset-bottom)); background: var(--navy);
    box-shadow: 0 -6px 20px rgba(0,0,0,.2);
  }
  .sticky-cta .btn { flex: 1; padding: 12px 10px; }
  body { padding-bottom: 72px; }
}

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