/* ============================================================
   GreenCP — Chemicals Manufacturing
   Shared Stylesheet
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;600;700;800&family=Open+Sans:wght@400;500;600&display=swap');

/* ── CSS Variables ─────────────────────────────────────────── */
:root {
  --primary:     #1b5e3b;
  --primary-mid: #2d7a52;
  --primary-lt:  #40916c;
  --accent:      #74c69d;
  --accent-lt:   #d8f3dc;
  --dark:        #0d2e1c;
  --text:        #1a2e22;
  --text-muted:  #5a7a65;
  --white:       #ffffff;
  --off-white:   #f4faf6;
  --border:      #c3e6cb;
  --shadow:      0 4px 24px rgba(27,94,59,.13);
  --shadow-lg:   0 8px 40px rgba(27,94,59,.18);
  --radius:      12px;
  --radius-lg:   20px;
  --transition:  all .3s ease;
}

/* ── Reset ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Open Sans', sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.7;
}
img { max-width: 100%; display: block; }
a  { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ── Navbar ─────────────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(13, 46, 28, 0.96);
  backdrop-filter: blur(10px);
  padding: 0 5%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  box-shadow: 0 2px 16px rgba(0,0,0,.3);
  transition: var(--transition);
}
.navbar.scrolled {
  background: rgba(13,46,28,0.99);
  height: 60px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-logo .logo-icon {
  width: 42px; height: 42px;
  background: linear-gradient(135deg, var(--primary-lt), var(--accent));
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
}
.nav-logo span {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--white);
  letter-spacing: 1px;
}
.nav-logo span em {
  font-style: normal;
  color: var(--accent);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-links a {
  color: rgba(255,255,255,.85);
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: .88rem;
  letter-spacing: .5px;
  text-transform: uppercase;
  padding: 8px 16px;
  border-radius: 8px;
  transition: var(--transition);
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--white);
  background: rgba(116,198,157,.2);
}
.nav-links .btn-nav {
  background: linear-gradient(135deg, var(--primary-lt), var(--accent));
  color: var(--white) !important;
  padding: 9px 22px;
  border-radius: 25px;
  margin-left: 8px;
}
.nav-links .btn-nav:hover {
  background: linear-gradient(135deg, var(--accent), var(--primary-lt));
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(116,198,157,.4);
}
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 26px; height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

/* ── Page Hero (inner pages) ────────────────────────────────── */
.page-hero {
  position: relative;
  min-height: 340px;
  display: flex; align-items: center; justify-content: center;
  text-align: center;
  background: linear-gradient(135deg, var(--dark) 0%, var(--primary) 60%, var(--primary-lt) 100%);
  margin-top: 72px;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute; inset: 0;
  background: url('https://images.unsplash.com/photo-1581092918056-0c4c3acd3789?auto=format&fit=crop&w=1920&q=70') center/cover no-repeat;
  opacity: .18;
}
.page-hero-content {
  position: relative; z-index: 1;
  padding: 60px 20px;
}
.page-hero-content h1 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: clamp(2rem, 5vw, 3.2rem);
  color: var(--white);
  margin-bottom: 12px;
}
.page-hero-content p {
  color: var(--accent);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: .5px;
}
.breadcrumb {
  display: flex; align-items: center; justify-content: center;
  gap: 8px;
  color: rgba(255,255,255,.6);
  font-size: .85rem;
  margin-top: 10px;
}
.breadcrumb a { color: var(--accent); }
.breadcrumb span { color: rgba(255,255,255,.4); }

/* ── Section Common ─────────────────────────────────────────── */
.section { padding: 90px 5%; }
.section-alt { background: var(--off-white); }
.section-center { text-align: center; }
.section-label {
  display: inline-block;
  background: var(--accent-lt);
  color: var(--primary);
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: .78rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 20px;
  margin-bottom: 14px;
  border: 1px solid var(--border);
}
.section-title {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  color: var(--dark);
  line-height: 1.2;
  margin-bottom: 16px;
}
.section-title span { color: var(--primary-lt); }
.section-sub {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto 50px;
}
.divider {
  width: 60px; height: 4px;
  background: linear-gradient(90deg, var(--primary-lt), var(--accent));
  border-radius: 2px;
  margin: 16px auto 20px;
}

/* ── Buttons ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: .9rem;
  letter-spacing: .5px;
  padding: 14px 32px;
  border-radius: 40px;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-lt));
  color: var(--white);
  box-shadow: 0 4px 18px rgba(27,94,59,.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(27,94,59,.45);
}
.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,.6);
}
.btn-outline:hover {
  background: rgba(255,255,255,.12);
  border-color: var(--white);
}
.btn-green-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary-lt);
}
.btn-green-outline:hover {
  background: var(--primary);
  color: var(--white);
}

/* ── Cards ───────────────────────────────────────────────────── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}
.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--border);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.card-icon-wrap {
  width: 64px; height: 64px;
  background: linear-gradient(135deg, var(--accent-lt), var(--border));
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 18px;
}
.card-body { padding: 32px; }
.card-body h3 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--dark);
  margin-bottom: 10px;
}
.card-body p { color: var(--text-muted); font-size: .95rem; }

/* ── Stats Bar ───────────────────────────────────────────────── */
.stats-bar {
  background: linear-gradient(135deg, var(--dark), var(--primary));
  padding: 50px 5%;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 30px;
  text-align: center;
}
.stat-item { color: var(--white); }
.stat-num {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 2.6rem;
  color: var(--accent);
  line-height: 1;
  display: block;
}
.stat-label { font-size: .88rem; color: rgba(255,255,255,.7); margin-top: 6px; letter-spacing: .5px; }

/* ── Footer ──────────────────────────────────────────────────── */
.footer {
  background: var(--dark);
  color: rgba(255,255,255,.75);
  padding: 70px 5% 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  padding-bottom: 50px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer-brand .logo-text {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 1.6rem;
  color: var(--white);
}
.footer-brand .logo-text em { font-style: normal; color: var(--accent); }
.footer-brand p { margin-top: 14px; font-size: .92rem; line-height: 1.7; }
.footer-socials { display: flex; gap: 10px; margin-top: 20px; }
.footer-socials a {
  width: 36px; height: 36px;
  background: rgba(255,255,255,.08);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: .9rem;
  color: var(--accent);
  transition: var(--transition);
}
.footer-socials a:hover { background: var(--primary-lt); color: var(--white); }
.footer-col h4 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 18px;
  font-size: .95rem;
  letter-spacing: .5px;
  text-transform: uppercase;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a {
  font-size: .9rem;
  color: rgba(255,255,255,.65);
  transition: var(--transition);
}
.footer-col ul li a:hover { color: var(--accent); padding-left: 4px; }
.footer-contact-item {
  display: flex; align-items: flex-start; gap: 10px;
  margin-bottom: 12px;
  font-size: .9rem;
}
.footer-contact-item .icon { color: var(--accent); font-size: 1rem; margin-top: 2px; flex-shrink: 0; }
.footer-bottom {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 24px;
  font-size: .84rem;
  color: rgba(255,255,255,.4);
}
.footer-bottom a { color: var(--accent); }

/* ── Scroll-to-top ───────────────────────────────────────────── */
.scroll-top {
  position: fixed; bottom: 30px; right: 30px;
  width: 46px; height: 46px;
  background: linear-gradient(135deg, var(--primary-lt), var(--accent));
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--white);
  font-size: 1.1rem;
  box-shadow: var(--shadow);
  cursor: pointer;
  opacity: 0; pointer-events: none;
  transition: var(--transition);
  z-index: 900;
}
.scroll-top.visible { opacity: 1; pointer-events: all; }
.scroll-top:hover { transform: translateY(-3px); }

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 700px) {
  .nav-links { display: none; flex-direction: column; position: absolute; top: 72px; left: 0; right: 0; background: var(--dark); padding: 20px; gap: 4px; }
  .nav-links.open { display: flex; }
  .hamburger { display: flex; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .stats-bar { grid-template-columns: 1fr 1fr; }
}