/* =====================================================
   LAYOUT.CSS — Navbar, Footer, Sidebar, Bottom Nav
   ===================================================== */

/* === NAVBAR === */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
  box-shadow: 0 1px 8px rgba(0, 0, 0, .05);
}

.navbar-inner {
  display: flex;
  align-items: center;
  height: var(--navbar-height);
  gap: var(--space-4);
  padding: 0 var(--space-4);
  max-width: var(--container-max);
  margin: 0 auto;
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  flex-shrink: 0;
}

.navbar-logo .logo-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 800;
  font-size: 1.1rem;
  box-shadow: 0 2px 8px rgba(22, 163, 74, .35);
}

.navbar-logo .logo-text {
  display: none;
}

.navbar-logo .logo-text h1 {
  font-size: 1.25rem;
  color: var(--color-primary);
  line-height: 1;
  margin: 0;
}

.navbar-logo .logo-text span {
  font-size: 9px;
  color: var(--color-gray-400);
  letter-spacing: .12em;
  text-transform: uppercase;
}

.navbar-search {
  flex: 1;
  position: relative;
}

.navbar-search input {
  width: 100%;
  padding: .55rem .75rem .55rem 2.25rem;
  border: 1.5px solid var(--color-gray-200);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  background: var(--color-gray-50);
  outline: none;
  transition: var(--transition);
}

.navbar-search input:focus {
  border-color: var(--color-primary);
  background: #fff;
}

.navbar-search .search-icon {
  position: absolute;
  left: .75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-gray-400);
  font-size: .875rem;
  pointer-events: none;
}

.navbar-search .search-btn {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--color-primary);
  color: #fff;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .75rem;
  transition: var(--transition);
}

.navbar-search .search-btn:hover {
  background: var(--color-primary-dark);
}

.navbar-actions {
  display: none;
  align-items: center;
  gap: var(--space-4);
  flex-shrink: 0;
}

.navbar-action-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  color: var(--color-gray-500);
  transition: var(--transition);
}

.navbar-action-btn:hover {
  background: var(--color-gray-100);
  color: var(--color-gray-800);
}

.navbar-action-btn .badge-count {
  position: absolute;
  top: 4px;
  right: 4px;
  background: var(--color-danger);
  color: #fff;
  font-size: 9px;
  font-weight: 700;
  min-width: 16px;
  height: 16px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1.5px solid #fff;
}

.navbar-profile {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-full);
  border: 1.5px solid var(--color-gray-200);
  cursor: pointer;
  transition: var(--transition);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-gray-700);
}

.navbar-profile:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.navbar-profile img {
  width: 26px;
  height: 26px;
  border-radius: 50%;
}

/* Navbar bottom nav (desktop) */
.navbar-nav {
  display: none;
  border-top: 1px solid var(--color-gray-100);
  padding: 0 var(--space-4);
  max-width: var(--container-max);
  margin: 0 auto;
}

.navbar-nav ul {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.navbar-nav ul li a {
  display: block;
  padding: .6rem var(--space-3);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-gray-600);
  border-bottom: 2px solid transparent;
  transition: var(--transition);
}

.navbar-nav ul li a:hover,
.navbar-nav ul li a.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* === BOTTOM NAV (mobile) === */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--color-white);
  border-top: 1px solid var(--color-gray-200);
  padding: var(--space-2) 0;
  padding-bottom: max(var(--space-2), env(safe-area-inset-bottom));
  display: flex;
}

.bottom-nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  font-size: 10px;
  font-weight: 500;
  color: var(--color-gray-400);
  padding: var(--space-1) 0;
  position: relative;
  text-decoration: none;
  transition: var(--transition);
}

.bottom-nav-item i {
  font-size: 1.2rem;
}

.bottom-nav-item.active,
.bottom-nav-item:hover {
  color: var(--color-primary);
}

.bottom-nav-item .badge-count {
  position: absolute;
  top: -2px;
  left: 50%;
  transform: translateX(4px);
  background: var(--color-danger);
  color: #fff;
  font-size: 9px;
  font-weight: 700;
  min-width: 16px;
  height: 16px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* === FOOTER === */
.footer {
  background: var(--color-white);
  border-top: 1px solid var(--color-gray-200);
  padding: var(--space-10) 0 var(--space-8);
  margin-bottom: calc(56px + env(safe-area-inset-bottom));
}

.footer-grid {
  display: grid;
  gap: var(--space-8);
  grid-template-columns: 1fr;
}

.footer-brand p {
  font-size: var(--text-sm);
  margin-top: var(--space-3);
  margin-bottom: var(--space-4);
  line-height: 1.7;
}

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

.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-gray-200);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray-500);
  font-size: .9rem;
  transition: var(--transition);
}

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

.footer-col h4 {
  font-size: var(--text-sm);
  color: var(--color-gray-800);
  margin-bottom: var(--space-4);
}

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

.footer-col ul li a {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: var(--color-primary);
  padding-left: 4px;
}

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  margin-bottom: var(--space-3);
}

.footer-contact li i {
  color: var(--color-primary);
  margin-top: 3px;
  flex-shrink: 0;
}

.footer-bottom {
  border-top: 1px solid var(--color-gray-100);
  margin-top: var(--space-8);
  padding-top: var(--space-5);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  text-align: center;
}

.footer-bottom p {
  font-size: var(--text-xs);
  color: var(--color-gray-400);
}

/* === SIDEBAR FILTER === */
.sidebar-filter {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-gray-200);
  padding: var(--space-5);
  position: sticky;
  top: calc(var(--navbar-height) + 24px);
}

.sidebar-filter h3 {
  font-size: var(--text-base);
  margin-bottom: var(--space-4);
}

.filter-group {
  margin-bottom: var(--space-5);
}

.filter-group h4 {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-gray-700);
  margin-bottom: var(--space-3);
}

.filter-check {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  margin-bottom: var(--space-2);
}

.filter-check input[type="checkbox"] {
  width: 15px;
  height: 15px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.filter-check label {
  font-size: var(--text-sm);
  color: var(--color-gray-600);
  cursor: pointer;
}

.filter-check:hover label {
  color: var(--color-primary);
}

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

.price-range input {
  flex: 1;
  padding: .45rem .75rem;
  border: 1.5px solid var(--color-gray-200);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  outline: none;
}

.price-range input:focus {
  border-color: var(--color-primary);
}

/* === PAGE LAYOUT === */
.page-layout {
  display: flex;
  gap: var(--space-6);
  align-items: flex-start;
}

.page-sidebar {
  width: 240px;
  flex-shrink: 0;
  display: none;
}

.page-main {
  flex: 1;
  min-width: 0;
}

/* === BREADCRUMB === */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  margin-bottom: var(--space-4);
}

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

.breadcrumb .sep {
  color: var(--color-gray-300);
}

.breadcrumb .current {
  color: var(--color-gray-800);
  font-weight: 500;
}

/* === DESKTOP BREAKPOINTS === */
@media (min-width: 768px) {
  .navbar-logo .logo-text {
    display: block;
  }

  .navbar-actions {
    display: flex;
  }

  .navbar-nav {
    display: block;
  }

  .bottom-nav {
    display: none;
  }

  .footer {
    margin-bottom: 0;
  }

  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr;
  }

  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }

  .page-sidebar {
    display: block;
  }
}

/* === SECTION HEADER === */
.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: var(--space-5);
}

.section-title {
  font-size: var(--text-xl);
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 50%;
  height: 3px;
  background: var(--color-primary);
  border-radius: var(--radius-full);
}

.section-link {
  font-size: var(--text-sm);
  color: var(--color-primary);
  font-weight: 500;
}

.section-link:hover {
  text-decoration: underline;
}