/* ==============================================
   LAYOUT.CSS — Navbar, Footer, Header Styles
   Baxter Site Works
   ============================================== */

/* ==============================================
   TOP UTILITY BAR
   ============================================== */
.top-bar {
  background: var(--color-bg-dark); /* dark bar above navbar */
  color: #FFFFFF;
  font-size: var(--font-size-sm);
  padding: 0.5rem 0;
  border-bottom: 2px solid var(--color-primary);
}

.top-bar .container {
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  flex-wrap: nowrap;
}

.top-bar-left,
.top-bar-right {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.top-bar a {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  transition: color var(--duration-fast) var(--ease-default);
}

.top-bar a:hover {
  color: var(--color-primary);
}

.top-bar a svg {
  width: 14px;
  height: 14px;
}

@media (max-width: 768px) {
  .top-bar { display: none; }
}

/* ==============================================
   HEADER / NAVBAR
   ============================================== */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  background: #ffffff;
  border-bottom: 1px solid var(--color-border);
  transition: background 0.3s ease, box-shadow 0.3s ease, padding 0.3s ease;
}

.navbar {
  padding: 0;
}

.navbar .container {
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  flex-wrap: nowrap;
  height: var(--navbar-height, 70px);
}

header.scrolled {
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

/* Logo */
.navbar-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

.navbar-logo img {
  height: 55px;
  width: auto;
  object-fit: contain;
}

/* Desktop Nav Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
}

.nav-links a {
  color: #111827;
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wider);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  transition: color var(--duration-fast) var(--ease-default), background var(--duration-fast) var(--ease-default);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: var(--space-3);
  right: var(--space-3);
  height: 2px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-fast) var(--ease-default);
}

.nav-links a:hover {
  color: var(--color-primary);
  background: rgba(0,0,0,0.05);
}

.nav-links a:hover::after {
  transform: scaleX(1);
}

.nav-links a.active {
  color: var(--color-primary);
}

.nav-links a.active::after {
  transform: scaleX(1);
}

/* CTA Button in Nav */
.nav-cta {
  flex-shrink: 0;
}

/* ==============================================
   MEGAMENU / SERVICES DROPDOWN
   ============================================== */
.nav-item {
  position: relative;
}

.nav-item .dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 40px rgba(0,0,0,0.12);
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
  pointer-events: none;
  z-index: var(--z-dropdown);
}

/* Invisible bridge to prevent gap */
.nav-item .dropdown::before {
  content: '';
  position: absolute;
  bottom: 100%;
  left: 0;
  width: 100%;
  height: 20px;
}

.nav-item:hover .dropdown,
.nav-item:focus-within .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

.dropdown a {
  display: block;
  padding: var(--space-2) var(--space-3);
  color: #374151 !important;
  font-size: var(--font-size-sm);
  border-radius: var(--radius-md);
  transition: background 0.15s ease, color 0.15s ease !important;
}

.dropdown a::after {
  display: none !important;
}

.dropdown a:hover {
  background: rgba(239, 68, 68, 0.15);
  color: var(--color-primary) !important;
}

/* ==============================================
   MOBILE HAMBURGER
   ============================================== */
.hamburger {
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
  color: #111827;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  transition: background var(--duration-fast) var(--ease-default);
}

.hamburger:hover {
  background: rgba(0,0,0,0.08);
}

/* ==============================================
   MOBILE DRAWER
   ============================================== */
.mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: var(--z-drawer-backdrop);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-normal) var(--ease-default);
}

.mobile-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: min(320px, 90vw);
  height: 100vh;
  background: #111111;
  z-index: var(--z-drawer);
  overflow-y: auto;
  transition: right var(--duration-moderate) var(--ease-default);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
}

.mobile-drawer.open {
  right: 0;
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-8);
}

.mobile-drawer-close {
  background: none;
  border: none;
  color: #FFFFFF;
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--duration-fast) var(--ease-default);
  min-width: 44px;
  min-height: 44px;
}

.mobile-drawer-close:hover {
  background: rgba(255,255,255,0.1);
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  list-style: none;
}

.mobile-nav-links a {
  display: block;
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  font-size: var(--font-size-lg);
  font-family: var(--font-heading);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  min-height: 44px;
  display: flex;
  align-items: center;
  transition: background var(--duration-fast) var(--ease-default), color var(--duration-fast) var(--ease-default);
}

.mobile-nav-links a:hover {
  background: rgba(239, 68, 68, 0.15);
  color: var(--color-primary);
}

/* Mobile Submenu */
.mobile-submenu {
  list-style: none;
  padding-left: var(--space-4);
  border-left: 2px solid var(--color-primary);
  margin-top: var(--space-1);
  margin-bottom: var(--space-1);
  display: none;
}

.mobile-submenu.open {
  display: block;
}

.mobile-submenu a {
  font-size: var(--font-size-sm) !important;
  color: rgba(255,255,255,0.7) !important;
  padding: var(--space-2) var(--space-3) !important;
  min-height: 44px !important;
}

.mobile-submenu a:hover {
  color: var(--color-primary) !important;
  background: rgba(239,68,68,0.1) !important;
}

.mobile-cta-section {
  margin-top: auto;
  padding-top: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

/* ==============================================
   FOOTER
   ============================================== */
footer {
  background: var(--color-bg-dark);
  color: rgba(255, 255, 255, 0.75);
}

.footer-top {
  padding: var(--space-16) 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-top .container {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-8);
  flex-direction: unset;
}

.footer-brand .logo-img {
  height: 50px;
  width: auto;
  margin-bottom: var(--space-4);
}

.footer-brand p {
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,0.65);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-4);
}

.footer-social {
  display: flex;
  gap: var(--space-3);
}

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.75);
  transition: all var(--duration-fast) var(--ease-default);
  text-decoration: none;
}

.footer-social a:hover {
  background: var(--color-primary);
  color: #FFFFFF;
  transform: translateY(-2px);
}

.footer-heading {
  font-family: var(--font-heading);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-widest);
  color: #FFFFFF;
  margin-bottom: var(--space-5);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  list-style: none;
}

.footer-links a {
  color: rgba(255,255,255,0.65);
  text-decoration: none;
  font-size: var(--font-size-sm);
  transition: color var(--duration-fast) var(--ease-default), padding-left var(--duration-fast) var(--ease-default);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.footer-links a:hover {
  color: var(--color-primary);
  padding-left: var(--space-2);
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  font-size: var(--font-size-sm);
}

.footer-contact-item svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-primary);
}

.footer-contact-item a {
  color: rgba(255,255,255,0.75);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-default);
}

.footer-contact-item a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  padding: var(--space-5) 0;
}

.footer-bottom .container {
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
}

.footer-bottom p {
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,0.5);
  margin-bottom: 0;
}

.footer-bottom a {
  color: rgba(255,255,255,0.5);
  text-decoration: none;
  font-size: var(--font-size-sm);
  transition: color var(--duration-fast) var(--ease-default);
}

.footer-bottom a:hover {
  color: var(--color-primary);
}

@media (max-width: 1024px) {
  .footer-top .container {
    grid-template-columns: 1fr 1fr;
  }
}

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

  .footer-bottom .container {
    flex-direction: column;
    gap: var(--space-2);
    text-align: center;
  }
}