/**
 * Crestline Auto Care — Layout, Grids & Responsive Structure
 */

.site-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.main-content {
  flex: 1 0 auto;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-3);
  padding-right: var(--space-3);
}

.container-wide {
  max-width: var(--max-width-wide);
}

.container-narrow {
  max-width: 860px;
}

/* Section Padding */
.section {
  padding-top: var(--space-6);
  padding-bottom: var(--space-6);
  position: relative;
}

.section-lg {
  padding-top: var(--space-7);
  padding-bottom: var(--space-7);
}

.section-sm {
  padding-top: var(--space-4);
  padding-bottom: var(--space-4);
}

.section-dark {
  background-color: var(--color-primary-dark);
  color: var(--color-text-inverse);
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4 {
  color: var(--color-text-inverse);
}

.section-dark p {
  color: var(--color-text-inverse-muted);
}

.section-alt {
  background-color: var(--color-surface-alt);
}

/* Header & Navigation */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  height: var(--header-height);
  background-color: rgba(18, 33, 25, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: background-color var(--transition-normal), box-shadow var(--transition-normal);
}

.site-header.scrolled {
  background-color: #122119;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.site-branding {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.brand-logo-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 800;
  color: #FFFFFF;
  line-height: 1;
  letter-spacing: -0.02em;
}

.brand-title span {
  color: var(--color-accent);
}

.brand-subtitle {
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: #C5BCAC;
  margin-top: 2px;
}

/* Main Navigation */
.primary-navigation {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 600;
  color: #E6E2D8;
  padding: var(--space-1) 0;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background-color: var(--color-accent);
  transition: width var(--transition-normal);
}

.nav-link:hover,
.nav-link.active {
  color: #FFFFFF;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.header-phone {
  display: none;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 700;
  color: #FFFFFF;
}

.header-phone svg {
  color: var(--color-accent);
}

/* Mobile Toggle */
.mobile-nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-sm);
  padding: 8px;
  cursor: pointer;
  color: #FFFFFF;
  transition: background var(--transition-fast);
}

.mobile-nav-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
}

.mobile-nav-toggle svg {
  width: 24px;
  height: 24px;
  display: block;
}

/* Footer Layout */
.site-footer {
  background-color: #121A15;
  color: #D4D0C5;
  padding-top: var(--space-7);
  padding-bottom: var(--space-5);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: var(--space-5);
  margin-bottom: var(--space-6);
}

.footer-col h4 {
  color: #FFFFFF;
  font-size: 1.1rem;
  margin-bottom: var(--space-3);
  position: relative;
  padding-bottom: var(--space-2);
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 32px;
  height: 2px;
  background-color: var(--color-accent);
}

.footer-col p {
  color: #A9A59B;
  font-size: 0.925rem;
}

.footer-links li {
  margin-bottom: var(--space-2);
}

.footer-links a {
  color: #C5C1B5;
  font-size: 0.925rem;
  transition: color var(--transition-fast), transform var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-links a:hover {
  color: var(--color-accent);
  transform: translateX(3px);
}

.footer-badge-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.footer-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  font-weight: 600;
  color: #E2DFD6;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-bottom {
  padding-top: var(--space-4);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-size: 0.85rem;
  color: #8C887F;
}

/* Generic Grid Utilities */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
  align-items: center;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}

/* Responsive Media Queries */
@media (min-width: 900px) {
  .header-phone {
    display: inline-flex;
  }
}

@media (max-width: 1024px) {
  .footer-top {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }
  .site-header {
    height: var(--header-height);
  }
  .site-branding {
    gap: 8px;
  }
  .brand-icon svg {
    width: 28px;
    height: 28px;
  }
  .brand-title {
    font-size: 1.15rem;
    white-space: nowrap;
  }
  .brand-subtitle {
    font-size: 0.62rem;
    letter-spacing: 0.06em;
    white-space: nowrap;
  }
  .mobile-nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6px;
  }
  .primary-navigation {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background-color: #122119;
    padding: var(--space-4);
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
    border-bottom: 2px solid var(--color-accent);
    box-shadow: var(--shadow-dropdown);
    transform: translateY(-150%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition-normal), opacity var(--transition-normal), visibility var(--transition-normal);
  }
  .primary-navigation.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .nav-menu {
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
    gap: var(--space-2);
  }
  .nav-link {
    display: block;
    width: 100%;
    padding: var(--space-2) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }
  .grid-2, .grid-3 {
    grid-template-columns: 1fr;
  }
  .footer-top {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .brand-title {
    font-size: 1.05rem;
  }
  .brand-subtitle {
    font-size: 0.58rem;
    letter-spacing: 0.04em;
  }
  .brand-icon svg {
    width: 24px;
    height: 24px;
  }
}