/* ============================================================
   ENVELOPE ROOFING — components.css
   Navigation and Footer components
   ============================================================ */

/* ============================================================
   NAVIGATION
   ============================================================ */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: transparent;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.site-nav.is-scrolled {
  background: var(--white);
  box-shadow: 0 1px 0 var(--grey-200);
}

.site-nav.is-scrolled .logo__text {
  color: var(--navy);
}

.site-nav.is-scrolled .nav-link {
  color: var(--near-black);
}

.site-nav.is-scrolled .nav-link:hover {
  color: var(--navy);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-link {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.88);
  cursor: pointer;
  transition: color 0.2s;
  background: none;
  border: none;
  padding: 0;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  line-height: 1;
  vertical-align: middle;
}

.nav-link:hover {
  color: var(--white);
}

/* Services dropdown */
.nav-item {
  position: relative;
}

.nav-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 12px);
  left: 0;
  background: var(--white);
  min-width: 300px;
  box-shadow: 0 8px 32px rgba(7, 30, 57, 0.15);
  border-top: 3px solid var(--accent);
  z-index: 300;
}

.nav-item.is-open .nav-dropdown {
  display: block;
}

.nav-dropdown a {
  display: block;
  padding: 0.75rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--near-black);
  border-bottom: 1px solid var(--off-white);
  transition: background 0.15s, color 0.15s;
  text-decoration: none;
}

.nav-dropdown a:last-child {
  border-bottom: none;
}

.nav-dropdown a:hover {
  background: var(--navy-light);
  color: var(--navy);
}

.nav-dropdown a.nav-dropdown__rfq {
  border-top: 2px solid var(--accent);
  color: var(--accent);
  font-weight: 600;
  margin-top: 4px;
}

.nav-dropdown a.nav-dropdown__rfq:hover {
  background: var(--navy-light);
}

.nav-dropdown a.nav-dropdown__sub {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.6);
  padding-top: 0.3rem;
  padding-bottom: 0.3rem;
  padding-left: 1.5rem;
  font-style: italic;
  letter-spacing: 0.02em;
}

.nav-dropdown a.nav-dropdown__sub:hover {
  color: var(--accent);
  background: rgba(0,150,255,0.06);
}

/* Nav CTA button */
.nav-cta {
  background: var(--accent) !important;
  color: var(--white) !important;
  padding: 0.55rem 1.2rem !important;
  font-weight: 700 !important;
  letter-spacing: 0.08em;
  transition: background 0.2s !important;
  text-transform: uppercase;
  font-size: 0.75rem !important;
}

.nav-cta:hover {
  background: #007fe0 !important;
}

/* Mobile hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 0.5rem;
  background: none;
  border: none;
}

.nav-hamburger__bar {
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: all 0.3s;
  display: block;
}

.site-nav.is-scrolled .nav-hamburger__bar {
  background: var(--navy);
}

.nav-hamburger[aria-expanded="true"] .nav-hamburger__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-hamburger[aria-expanded="true"] .nav-hamburger__bar:nth-child(2) {
  opacity: 0;
}

.nav-hamburger[aria-expanded="true"] .nav-hamburger__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile drawer */
.nav-drawer {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--navy);
  z-index: 150;
  overflow-y: auto;
  padding: 2rem;
  flex-direction: column;
  gap: 0;
}

.nav-drawer.is-open {
  display: flex;
}

.nav-drawer__link {
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--white);
  letter-spacing: 0.03em;
  padding: 1rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  text-decoration: none;
  display: block;
}

.nav-drawer__link:hover {
  color: var(--accent);
}

.nav-drawer__services {
  display: flex;
  flex-direction: column;
}

.nav-drawer__service-item {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.75);
  padding: 0.6rem 0 0.6rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  text-decoration: none;
}

.nav-drawer__service-item:hover {
  color: var(--accent);
}

.nav-drawer__rfq {
  color: var(--accent);
  font-weight: 600;
  border-top: 1px solid rgba(0, 150, 255, 0.3);
  margin-top: 4px;
}

.nav-drawer__sub-item {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.55) !important;
  padding-left: 2rem !important;
  font-style: italic;
}

.nav-drawer__sub-item:hover {
  color: var(--accent) !important;
}

.nav-drawer__cta {
  margin-top: 2rem;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--navy);
  color: var(--white);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.45);
  line-height: 1.7;
  max-width: 260px;
  margin-top: 1rem;
  margin-bottom: 0.4rem;
}

.footer-col h4 {
  font-family: var(--font-body);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.35);
  margin-bottom: 1rem;
}

.footer-col a {
  display: block;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 0.6rem;
  text-decoration: none;
  transition: color 0.2s;
}

.footer-col a:hover {
  color: var(--white);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom p {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.3);
}

.footer-bottom__links {
  display: flex;
  gap: 1.5rem;
}

.footer-bottom__links a {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.3);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-bottom__links a:hover {
  color: rgba(255, 255, 255, 0.7);
}

/* Responsive */
@media (max-width: 1023px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

  .nav-links {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }
}

@media (max-width: 640px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }
}