/* ================================================
   BUTTONS
   ================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.875rem 2rem;
  min-height: 48px;
  transition:
    background-color var(--transition-fast),
    color var(--transition-fast),
    border-color var(--transition-fast),
    transform var(--transition-fast);
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.btn-primary:hover {
  background-color: var(--color-primary-light);
}

.btn-large {
  font-size: var(--text-base);
  padding: 1.125rem 2.75rem;
}

/* ================================================
   HEADER
   ================================================ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-header);
  transition:
    background-color 350ms var(--ease-out-expo),
    box-shadow 350ms var(--ease-out-expo);
}

.site-header.header--scrolled {
  background-color: var(--color-white);
  box-shadow: 0 1px 8px rgba(0, 0, 0, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-wide);
  margin-inline: auto;
  padding: var(--space-sm) var(--gutter);
}

.header-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.logo-desktop {
  display: none;
  height: 40px;
  width: auto;
}

.logo-mobile {
  display: block;
  height: 36px;
  width: 36px;
  object-fit: contain;
}

@media (min-width: 1024px) {
  .logo-desktop {
    display: block;
  }
  .logo-mobile {
    display: none;
  }
}

/* Nav */
.header-nav {
  display: none;
}

@media (min-width: 1024px) {
  .header-nav {
    display: block;
  }
}

.header-nav-list {
  display: flex;
  gap: var(--space-lg);
}

.header-nav-list a {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: var(--text-sm);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-gray);
  position: relative;
  padding-block: 0.25rem;
  transition: color var(--transition-fast);
}

.header-nav-list a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 1px;
  background-color: var(--color-primary);
  transition: width var(--transition-medium), left var(--transition-medium);
}

.header-nav-list a:hover::after,
.header-nav-list a.is-active::after {
  width: 100%;
  left: 0;
}

.header-nav-list a:hover {
  color: var(--color-primary);
}

.site-header.header--scrolled .header-nav-list a {
  color: var(--color-gray);
}

/* Header on hero (transparent state) */
.site-header:not(.header--scrolled) .header-nav-list a {
  color: rgba(255, 255, 255, 0.9);
  text-shadow: 0 1px 14px rgba(0, 0, 0, 0.28);
}

.site-header:not(.header--scrolled) .header-nav-list a::after {
  background-color: var(--color-white);
}

/* Header CTA */
.header-cta {
  display: none;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-white);
  background-color: var(--color-primary);
  padding: 0.5rem 1.25rem;
  transition:
    background-color var(--transition-fast);
}

.header-cta:hover {
  background-color: var(--color-primary-light);
}

@media (min-width: 1024px) {
  .header-cta {
    display: inline-flex;
  }
}

/* Hamburger */
.header-menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 32px;
  height: 32px;
  padding: 4px;
}

@media (min-width: 1024px) {
  .header-menu-toggle {
    display: none;
  }
}

.menu-bar {
  display: block;
  width: 100%;
  height: 1.5px;
  background-color: var(--color-gray-dark);
  transition:
    transform 250ms var(--ease-out-expo),
    opacity 250ms var(--ease-out-expo);
  transform-origin: center;
}

.site-header:not(.header--scrolled) .menu-bar {
  background-color: var(--color-white);
  box-shadow: 0 1px 8px rgba(0, 0, 0, 0.3);
}

.header-menu-toggle[aria-expanded="true"] .menu-bar:first-child {
  transform: translateY(3.75px) rotate(45deg);
}

.header-menu-toggle[aria-expanded="true"] .menu-bar:last-child {
  transform: translateY(-3.75px) rotate(-45deg);
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-white);
  z-index: calc(var(--z-header) - 1);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition:
    opacity 350ms var(--ease-out-expo),
    visibility 350ms var(--ease-out-expo);
}

.mobile-menu.is-open {
  opacity: 1;
  visibility: visible;
}

.mobile-menu-list {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
}

.mobile-menu-list a {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: var(--text-xl);
  letter-spacing: 0.02em;
  color: var(--color-gray-dark);
  transition: color var(--transition-fast);
}

.mobile-menu-list a:hover {
  color: var(--color-primary);
}

.mobile-menu-cta {
  font-weight: 500 !important;
  color: var(--color-primary) !important;
}

/* ================================================
   FOOTER
   ================================================ */

.site-footer {
  background-color: var(--color-accent-subtle);
  padding-top: var(--space-2xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
  padding-bottom: var(--space-2xl);
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-2xl);
  }
}

.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-sm);
}

.footer-logo {
  width: 90px;
  height: auto;
  opacity: 0.8;
}

.footer-brand-desc {
  font-size: var(--text-sm);
  color: var(--color-gray);
  line-height: 1.7;
  max-width: 32ch;
}

.footer-address {
  font-style: normal;
  font-size: var(--text-sm);
  color: var(--color-gray);
  line-height: 1.7;
  margin-top: var(--space-md);
}

.footer-heading {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-gray-dark);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: var(--text-sm);
  font-weight: 400;
  color: var(--color-gray);
  transition: color var(--transition-fast);
}

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

.footer-links svg {
  flex-shrink: 0;
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  max-width: var(--container-max);
  margin-inline: auto;
  padding: var(--space-md) var(--gutter);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
}

@media (min-width: 600px) {
  .footer-bottom {
    justify-content: space-between;
  }
}

.footer-copy,
.footer-credit {
  font-size: var(--text-xs);
  color: var(--color-gray-light);
  text-align: center;
  margin: 0;
}

.footer-credit a {
  color: var(--color-gray-light);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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