/* ============================================================
   BMK Concrete & Masonry — Global Stylesheet
   Style Guide: #1f2933 dark | #84d643 highlight
   Fonts: Oswald (headers) | Open Sans (body)
   ============================================================ */

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

/* ── Root Variables ── */
:root {
  --color-dark:       #1f2933;
  --color-dark-mid:   #263140;
  --color-dark-light: #2e3c4e;
  --color-green:      #84d643;
  --color-green-dark: #6bbf2e;
  --color-white:      #ffffff;
  --color-off-white:  #f5f7f2;
  --color-gray-light: #e8ecf0;
  --color-gray:       #8a9ab0;
  --color-text:       #1f2933;
  --color-text-light: #4a5568;

  --font-heading: 'Oswald', sans-serif;
  --font-body:    'Open Sans', sans-serif;

  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  16px;

  --shadow-sm:  0 2px 8px rgba(0,0,0,0.08);
  --shadow-md:  0 4px 20px rgba(0,0,0,0.12);
  --shadow-lg:  0 8px 40px rgba(0,0,0,0.18);

  --transition: 0.25s ease;

  --max-width: 1200px;
  --section-pad: 80px 0;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ── Container ── */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Buttons ── */
.btn-primary {
  display: inline-block;
  background: var(--color-green);
  color: var(--color-dark);
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}
.btn-primary:hover {
  background: var(--color-green-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(132, 214, 67, 0.35);
}

.btn-outline {
  display: inline-block;
  border: 2px solid var(--color-green);
  color: var(--color-green);
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 12px 30px;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
}
.btn-outline:hover {
  background: var(--color-green);
  color: var(--color-dark);
}

/* ── Section Labels ── */
.section-label {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-green);
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  color: var(--color-dark);
  line-height: 1.15;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.section-title.light { color: var(--color-white); }

.section-subtitle {
  font-size: 1rem;
  color: var(--color-text-light);
  max-width: 600px;
  margin-top: 12px;
  line-height: 1.7;
}
.section-subtitle.light { color: rgba(255,255,255,0.75); }

/* ── Header / Nav ── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
  padding: 0;
}
.site-header.scrolled {
  background: var(--color-dark);
  box-shadow: var(--shadow-md);
}
.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 80px;
  display: flex;
  align-items: center;
  gap: 32px;
}
.logo-link { display: flex; align-items: center; }
.logo-img { height: 58px; width: auto; }

.main-nav { margin-left: auto; }
.nav-list { display: flex; align-items: center; gap: 8px; }
.nav-item { position: relative; }
.nav-link {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-white);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link:hover, .nav-link.active { color: var(--color-green); }
.chevron { font-size: 1.1rem; transition: transform var(--transition); }
.has-dropdown.open .chevron { transform: rotate(180deg); }

.dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  background: var(--color-dark);
  border-top: 3px solid var(--color-green);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  min-width: 220px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-8px);
  transition: opacity var(--transition), transform var(--transition);
}
.has-dropdown.open .dropdown-menu {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}
.dropdown-link {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-white);
  padding: 12px 18px;
  transition: color var(--transition), background var(--transition);
}
.dropdown-link:hover { color: var(--color-green); background: var(--color-dark-mid); }

.btn-cta-nav {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--color-green);
  color: var(--color-dark);
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  margin-left: 8px;
  transition: background var(--transition), transform var(--transition);
  white-space: nowrap;
}
.btn-cta-nav:hover { background: var(--color-green-dark); transform: translateY(-1px); }
.btn-cta-nav-mobile { display: none; }

/* Mobile toggle */
.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  margin-left: auto;
}
.mobile-toggle span {
  display: block;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.mobile-toggle.active span:nth-child(1) { transform: translateY(9px) rotate(45deg); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }

/* ── Footer ── */
.site-footer {
  background: var(--color-dark);
  color: var(--color-white);
  padding: 64px 0 0;
}
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px 48px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
}
.footer-logo { height: 70px; width: auto; margin-bottom: 16px; }
.footer-tagline {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  color: var(--color-gray);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.footer-heading {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-green);
  margin-bottom: 18px;
}
.footer-links ul li { margin-bottom: 10px; }
.footer-links ul li a {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.65);
  transition: color var(--transition);
}
.footer-links ul li a:hover { color: var(--color-green); }
.footer-contact p { font-size: 0.9rem; color: rgba(255,255,255,0.65); margin-bottom: 8px; }
.footer-contact a[href^="tel"] { color: var(--color-green); font-weight: 600; }
.btn-cta-footer {
  display: inline-block;
  margin-top: 16px;
  background: var(--color-green);
  color: var(--color-dark);
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}
.btn-cta-footer:hover { background: var(--color-green-dark); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px 24px;
  text-align: center;
}
.footer-bottom p { font-size: 0.8rem; color: var(--color-gray); }
.footer-bottom a { color: var(--color-gray); transition: color var(--transition); }
.footer-bottom a:hover { color: var(--color-green); }
.footer-credit { margin-top: 6px; }
.footer-credit a { color: var(--color-green) !important; font-weight: 600; }

/* Footer social icons */
.footer-social { margin-top: 16px; display: flex; gap: 12px; }
.footer-social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.6);
  transition: background var(--transition), color var(--transition), transform var(--transition);
}
.footer-social-link:hover {
  background: var(--color-green);
  color: var(--color-dark);
  transform: translateY(-2px);
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 768px) {
  :root { --section-pad: 56px 0; }
  /* When mobile menu is open, give the header a solid background so
     the logo row isn't transparent over the hero image */
  .site-header.nav-open {
    background: var(--color-dark) !important;
    box-shadow: var(--shadow-md);
  }
  .main-nav {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: var(--color-dark);
    padding: 24px;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition), opacity var(--transition);
  }
  .main-nav.mobile-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }
  .nav-list { flex-direction: column; align-items: flex-start; gap: 4px; }
  .dropdown-menu {
    position: static;
    opacity: 1;
    pointer-events: all;
    transform: none;
    box-shadow: none;
    border-top: none;
    border-left: 2px solid var(--color-green);
    margin-left: 16px;
    display: none;
  }
  .has-dropdown.open .dropdown-menu { display: block; }
  .mobile-toggle { display: flex; }
  .btn-cta-nav { display: none; }
  .btn-cta-nav-mobile {
    display: block;
    margin-top: 16px;
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    background: var(--color-green);
    color: var(--color-dark);
    padding: 14px 24px;
    border-radius: var(--radius-sm);
    text-align: center;
    transition: background var(--transition);
  }
  .btn-cta-nav-mobile:hover { background: var(--color-green-dark); }
  .footer-inner { grid-template-columns: 1fr; gap: 28px; }
}