/* ==========================================================================
   ManikPola - Centralized Stylesheet
   Gemstone Marketplace UI/UX Improvements
   ========================================================================== */

/* === CSS Variables / Design Tokens === */
:root {
  --color-primary: #1565c0;
  --color-primary-dark: #0d47a1;
  --color-primary-light: #1e88e5;
  --color-primary-bg: #e3f2fd;
  --color-secondary: #1a237e;
  --color-secondary-light: #283593;
  --color-accent: #f59e0b;
  --color-accent-dark: #d97706;
  --color-success: #059669;
  --color-success-bg: #d1fae5;
  --color-danger: #dc2626;
  --color-danger-bg: #fee2e2;
  --color-warning: #d97706;
  --color-warning-bg: #fef3c7;
  --color-info: #0369a1;
  --color-info-bg: #e0f2fe;

  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;

  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-heading: var(--font-sans);

  --shadow-sm: 0 1px 2px 0 rgba(0,0,0,0.05);
  --shadow: 0 1px 3px 0 rgba(0,0,0,0.1), 0 1px 2px -1px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0,0,0,0.25);

  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* === Base / Reset === */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-gray-800);
  background-color: var(--color-gray-50);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: 1.3;
  margin: 0;
  color: var(--color-gray-900);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* === Focus Styles === */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* === Line Clamp === */
.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.line-clamp-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ==========================================================================
   HEADER & NAVIGATION
   ========================================================================== */
.site-header {
  background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
  border-bottom: 1px solid rgba(26, 35, 126, 0.06);
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.site-header .header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

@media (min-width: 768px) {
  .site-header .header-inner {
    padding: 0 1.5rem;
    height: 70px;
  }
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-secondary);
  transition: opacity var(--transition);
}

.header-logo:hover {
  opacity: 0.85;
  color: var(--color-secondary);
}

.header-logo img {
  height: 36px;
  width: auto;
}

.header-logo span {
  display: none;
}

@media (min-width: 640px) {
  .header-logo span {
    display: inline;
  }
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

@media (min-width: 768px) {
  .header-actions {
    gap: 1rem;
  }
}

.header-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-gray-700);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.header-action-btn:hover {
  color: var(--color-primary);
  background: var(--color-primary-bg);
}

.header-action-btn i {
  font-size: 1rem;
}

.header-action-btn .badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  font-size: 0.7rem;
  font-weight: 700;
  color: #fff;
  background: var(--color-danger);
  border-radius: var(--radius-full);
}

/* POST AD Button */
.btn-post-ad {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  padding: 0.625rem 1.25rem;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.025em;
  color: #fff;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: 0 2px 8px rgba(21, 101, 192, 0.25);
  white-space: nowrap;
  text-transform: uppercase;
}

.btn-post-ad:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(21, 101, 192, 0.35);
  color: #fff;
}

.btn-post-ad:active {
  transform: translateY(0);
  box-shadow: 0 2px 4px rgba(21, 101, 192, 0.2);
}

/* === Mobile Menu Toggle === */
.mobile-menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: none;
  background: transparent;
  color: var(--color-gray-700);
  font-size: 1.35rem;
  cursor: pointer;
  border-radius: var(--radius);
  transition: background var(--transition);
}

.mobile-menu-toggle:hover {
  background: var(--color-gray-100);
}

@media (min-width: 768px) {
  .mobile-menu-toggle {
    display: none;
  }
}

/* === Desktop Nav === */
.desktop-nav {
  display: none;
}

@media (min-width: 768px) {
  .desktop-nav {
    display: flex;
    align-items: center;
    gap: 0.25rem;
  }
}

/* ==========================================================================
   MOBILE MENU OVERLAY
   ========================================================================== */
.mobile-menu-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  z-index: 45;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}

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

.mobile-menu-panel {
  position: fixed;
  top: 0;
  left: 0;
  width: 300px;
  max-width: 85vw;
  height: 100%;
  background: #fff;
  z-index: 46;
  transform: translateX(-100%);
  transition: transform var(--transition);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  box-shadow: var(--shadow-2xl);
}

.mobile-menu-panel.open {
  transform: translateX(0);
}

.mobile-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--color-gray-200);
  position: sticky;
  top: 0;
  background: #fff;
  z-index: 1;
}

.mobile-menu-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: none;
  background: transparent;
  color: var(--color-gray-500);
  font-size: 1.25rem;
  cursor: pointer;
  border-radius: var(--radius);
  transition: background var(--transition);
}

.mobile-menu-close:hover {
  background: var(--color-gray-100);
}

.mobile-menu-body {
  padding: 0.75rem;
}

.mobile-menu-body nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-bottom: 1.5rem;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  color: var(--color-gray-700);
  font-size: 0.9375rem;
  font-weight: 500;
  transition: all var(--transition);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  background: var(--color-primary-bg);
  color: var(--color-primary);
}

.mobile-nav-link i {
  width: 20px;
  text-align: center;
  font-size: 1rem;
}

.mobile-menu-divider {
  border: none;
  border-top: 1px solid var(--color-gray-200);
  margin: 0.75rem 0;
}

.mobile-menu-section-title {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-gray-400);
  padding: 0.5rem 1rem;
  margin-top: 0.25rem;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  background: linear-gradient(135deg, var(--color-secondary) 0%, #0d1642 100%);
  color: #fff;
  padding: 3rem 0 1.5rem;
  margin-top: auto;
}

.site-footer .footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

@media (min-width: 640px) {
  .site-footer .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .site-footer .footer-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.footer-col h3 {
  color: #90caf9;
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1rem;
  letter-spacing: 0.025em;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-col ul li a {
  color: rgba(255,255,255,0.75);
  font-size: 0.875rem;
  transition: color var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-col ul li a:hover {
  color: #fff;
}

.footer-social {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.8);
  font-size: 1.125rem;
  transition: all var(--transition);
}

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

.footer-bottom {
  text-align: center;
  padding-top: 1.5rem;
  margin-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.5);
}

.footer-bottom a {
  color: rgba(255,255,255,0.6);
}

.footer-bottom a:hover {
  color: #fff;
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  font-size: 0.9375rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  line-height: 1.5;
  user-select: none;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
  box-shadow: 0 2px 8px rgba(21, 101, 192, 0.25);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(21, 101, 192, 0.4);
  color: #fff;
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: var(--color-gray-100);
  color: var(--color-gray-700);
  border: 1px solid var(--color-gray-200);
}

.btn-secondary:hover {
  background: var(--color-gray-200);
  color: var(--color-gray-800);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary);
  color: #fff;
}

.btn-danger {
  background: var(--color-danger);
  color: #fff;
}

.btn-danger:hover {
  background: #b91c1c;
  color: #fff;
}

.btn-success {
  background: var(--color-success);
  color: #fff;
}

.btn-success:hover {
  background: #047857;
  color: #fff;
}

.btn-lg {
  padding: 0.875rem 1.75rem;
  font-size: 1rem;
}

.btn-sm {
  padding: 0.375rem 0.875rem;
  font-size: 0.8125rem;
}

.btn-block {
  display: flex;
  width: 100%;
}

.btn-icon {
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: var(--radius);
}

/* Mobile button improvements */
@media (max-width: 767px) {
  .btn-mobile {
    min-height: 48px;
    padding: 0.75rem 1.25rem;
    font-size: 1rem;
  }
}

/* ==========================================================================
   CARDS
   ========================================================================== */
.card {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-gray-100);
  overflow: hidden;
  transition: all var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
  border-color: rgba(21, 101, 192, 0.15);
}

.card-body {
  padding: 1.25rem;
}

@media (min-width: 768px) {
  .card-body {
    padding: 1.5rem;
  }
}

/* === Ad Card === */
.ad-card {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-gray-100);
  overflow: hidden;
  transition: all var(--transition);
}

.ad-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
  border-color: rgba(21, 101, 192, 0.2);
}

.ad-card .ad-image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: var(--color-gray-100);
}

.ad-card .ad-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.ad-card:hover .ad-image img {
  transform: scale(1.05);
}

.ad-card .ad-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  z-index: 2;
}

.ad-card .ad-badge span {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-sm);
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.ad-card .ad-badge .badge-verified {
  background: rgba(5, 150, 105, 0.9);
  color: #fff;
}

.ad-card .ad-badge .badge-top {
  background: rgba(245, 158, 11, 0.9);
  color: #fff;
}

.ad-card .ad-price {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-primary);
}

@media (min-width: 768px) {
  .ad-card .ad-price {
    font-size: 1.25rem;
  }
}

.ad-card .ad-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--color-gray-500);
  margin-top: 0.5rem;
}

/* ==========================================================================
   FORMS / INPUTS
   ========================================================================== */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-gray-700);
  margin-bottom: 0.375rem;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  font-family: var(--font-sans);
  color: var(--color-gray-800);
  background: #fff;
  border: 1.5px solid var(--color-gray-300);
  border-radius: var(--radius);
  transition: all var(--transition);
  appearance: none;
  -webkit-appearance: none;
  outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(21, 101, 192, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-gray-400);
}

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%236b7280' viewBox='0 0 12 12'%3E%3Cpath d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-check {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
}

.form-check input[type="checkbox"] {
  width: 1.125rem;
  height: 1.125rem;
  accent-color: var(--color-primary);
  cursor: pointer;
}

/* Search form */
.search-form {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-gray-200);
  overflow: hidden;
  transition: box-shadow var(--transition);
}

.search-form:focus-within {
  box-shadow: var(--shadow-lg), 0 0 0 3px rgba(21, 101, 192, 0.08);
  border-color: var(--color-primary);
}

.search-form .search-location {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  cursor: pointer;
  transition: background var(--transition);
  border-bottom: 1px solid var(--color-gray-200);
}

@media (min-width: 768px) {
  .search-form .search-location {
    border-bottom: none;
    border-right: 1px solid var(--color-gray-200);
    min-width: 180px;
  }
}

.search-form .search-location:hover {
  background: var(--color-gray-50);
}

.search-form .search-location i {
  color: var(--color-primary);
  font-size: 1rem;
}

.search-form .search-input {
  flex: 1;
  border: none;
  outline: none;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  color: var(--color-gray-800);
  background: transparent;
}

.search-form .search-input::placeholder {
  color: var(--color-gray-400);
}

.search-form .search-submit {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.25rem;
  background: var(--color-primary);
  color: #fff;
  border: none;
  cursor: pointer;
  transition: background var(--transition);
}

.search-form .search-submit:hover {
  background: var(--color-primary-dark);
}

@media (min-width: 768px) {
  .search-form .search-submit {
    padding: 0.75rem 1.5rem;
  }
}

/* ==========================================================================
   CATEGORY CARDS
   ========================================================================== */
.category-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

@media (min-width: 480px) {
  .category-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
  }
}

@media (min-width: 768px) {
  .category-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 1024px) {
  .category-grid {
    grid-template-columns: repeat(6, 1fr);
  }
}

.category-card {
  background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
  border: 1.5px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: 1.25rem 0.75rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  display: block;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(21, 101, 192, 0.03) 0%, rgba(26, 35, 126, 0.03) 100%);
  opacity: 0;
  transition: opacity var(--transition);
}

.category-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-primary);
}

.category-card:hover::before {
  opacity: 1;
}

.category-card:active {
  transform: translateY(-2px);
  transition: transform 0.1s ease;
}

.category-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 0.75rem;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  box-shadow: 0 4px 12px rgba(21, 101, 192, 0.2);
}

.category-card:hover .category-icon {
  transform: scale(1.1) rotate(5deg);
  box-shadow: 0 6px 20px rgba(21, 101, 192, 0.35);
}

.category-icon i,
.category-icon svg {
  color: #fff;
  font-size: 1.25rem;
  transition: transform var(--transition);
}

.category-card:hover .category-icon i,
.category-card:hover .category-icon svg {
  transform: scale(1.1);
}

.category-name {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-gray-800);
  margin-bottom: 0.25rem;
  transition: color var(--transition);
}

.category-card:hover .category-name {
  color: var(--color-primary);
}

.category-subtitle {
  font-size: 0.75rem;
  color: var(--color-gray-500);
}

.category-count {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-gray-500);
  background: var(--color-gray-100);
  padding: 0.2rem 0.625rem;
  border-radius: var(--radius-full);
  margin-top: 0.5rem;
  transition: all var(--transition);
}

.category-card:hover .category-count {
  background: var(--color-primary-bg);
  color: var(--color-primary);
}

/* Category card animation */
@keyframes categorySlideIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.category-card {
  animation: categorySlideIn 0.5s ease forwards;
  opacity: 0;
}

.category-card:nth-child(1) { animation-delay: 0.05s; }
.category-card:nth-child(2) { animation-delay: 0.1s; }
.category-card:nth-child(3) { animation-delay: 0.15s; }
.category-card:nth-child(4) { animation-delay: 0.2s; }
.category-card:nth-child(5) { animation-delay: 0.25s; }
.category-card:nth-child(6) { animation-delay: 0.3s; }
.category-card:nth-child(7) { animation-delay: 0.35s; }
.category-card:nth-child(8) { animation-delay: 0.4s; }

/* ==========================================================================
   FILTER SIDEBAR
   ========================================================================== */
.filter-sidebar {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-gray-100);
  padding: 1.25rem;
}

@media (min-width: 768px) {
  .filter-sidebar {
    padding: 1.5rem;
  }
}

.filter-sidebar-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.filter-section {
  margin-bottom: 1.25rem;
}

.filter-section:last-child {
  margin-bottom: 0;
}

.filter-section-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-gray-600);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

/* Mobile filter overlay */
.filter-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  z-index: 40;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}

.filter-overlay.open {
  opacity: 1;
  visibility: visible;
}

@media (max-width: 1023px) {
  .filter-sidebar-mobile {
    position: fixed;
    top: 0;
    left: 0;
    width: 300px;
    max-width: 85vw;
    height: 100%;
    background: #fff;
    z-index: 41;
    overflow-y: auto;
    transform: translateX(-100%);
    transition: transform var(--transition);
    box-shadow: var(--shadow-2xl);
    border-radius: 0;
    padding: 1.25rem;
  }

  .filter-sidebar-mobile.open {
    transform: translateX(0);
  }
}

/* ==========================================================================
   IMAGE SLIDER / GALLERY
   ========================================================================== */
.image-slider {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--color-gray-100);
  aspect-ratio: 4 / 3;
}

@media (min-width: 768px) {
  .image-slider {
    aspect-ratio: 16 / 10;
  }
}

.image-slider-track {
  display: flex;
  height: 100%;
  transition: transform 0.35s ease;
}

.image-slider-slide {
  flex: 0 0 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-gray-50);
}

.image-slider-slide img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.image-slider-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255,255,255,0.95);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  transition: all var(--transition);
  z-index: 5;
  color: var(--color-gray-700);
  font-size: 1rem;
}

.image-slider-nav:hover {
  background: #fff;
  box-shadow: var(--shadow-lg);
  transform: translateY(-50%) scale(1.05);
}

.image-slider-prev {
  left: 12px;
}

.image-slider-next {
  right: 12px;
}

.image-slider-counter {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(0,0,0,0.55);
  color: #fff;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 500;
  z-index: 5;
}

.image-slider-dots {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin-top: 12px;
}

.image-slider-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-gray-300);
  border: none;
  cursor: pointer;
  padding: 0;
  transition: all var(--transition);
}

.image-slider-dot.active {
  background: var(--color-primary);
  transform: scale(1.3);
}

/* Desktop thumbnails */
.image-thumbnails {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.image-thumbnail {
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
  background: var(--color-gray-100);
}

.image-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

.image-thumbnail:hover {
  border-color: var(--color-primary-light);
}

.image-thumbnail:hover img {
  transform: scale(1.05);
}

.image-thumbnail.active {
  border-color: var(--color-primary);
}

/* ==========================================================================
   CHAT / MESSAGING
   ========================================================================== */
.chat-container {
  display: flex;
  height: calc(100vh - 80px);
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}

@media (min-width: 768px) {
  .chat-container {
    height: calc(100vh - 200px);
    min-height: 500px;
  }
}

.chat-sidebar {
  width: 100%;
  border-right: 1px solid var(--color-gray-200);
  background: #fff;
  overflow-y: auto;
}

@media (min-width: 768px) {
  .chat-sidebar {
    width: 340px;
    flex-shrink: 0;
  }
}

.chat-sidebar-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--color-gray-200);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-gray-800);
}

.chat-conversation-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.875rem 1.25rem;
  cursor: pointer;
  transition: background var(--transition-fast);
  border-bottom: 1px solid var(--color-gray-100);
  text-decoration: none;
  color: inherit;
}

.chat-conversation-item:hover {
  background: var(--color-gray-50);
}

.chat-conversation-item.active {
  background: var(--color-primary-bg);
}

.chat-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 600;
  font-size: 1rem;
  flex-shrink: 0;
}

.chat-conversation-info {
  flex: 1;
  min-width: 0;
}

.chat-conversation-name {
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--color-gray-800);
  margin-bottom: 0.125rem;
}

.chat-conversation-preview {
  font-size: 0.8125rem;
  color: var(--color-gray-500);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chat-conversation-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.25rem;
  flex-shrink: 0;
}

.chat-conversation-time {
  font-size: 0.6875rem;
  color: var(--color-gray-400);
}

.chat-unread-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 22px;
  padding: 0 6px;
  font-size: 0.6875rem;
  font-weight: 700;
  color: #fff;
  background: var(--color-danger);
  border-radius: var(--radius-full);
}

.chat-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.chat-main-header {
  padding: 0.875rem 1.25rem;
  border-bottom: 1px solid var(--color-gray-200);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: #fff;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1.25rem;
  background: var(--color-gray-50);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.message-bubble {
  max-width: 80%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-lg);
  font-size: 0.9375rem;
  line-height: 1.5;
  word-wrap: break-word;
  animation: messageIn 0.2s ease;
}

.message-bubble.sent {
  background: var(--color-primary);
  color: #fff;
  align-self: flex-end;
  border-bottom-right-radius: 4px;
}

.message-bubble.received {
  background: #fff;
  border: 1px solid var(--color-gray-200);
  color: var(--color-gray-800);
  align-self: flex-start;
  border-bottom-left-radius: 4px;
}

.message-time {
  font-size: 0.6875rem;
  color: var(--color-gray-400);
  margin-top: 0.25rem;
}

@keyframes messageIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.chat-input-area {
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--color-gray-200);
  background: #fff;
  display: flex;
  gap: 0.75rem;
}

.chat-input-area input {
  flex: 1;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--color-gray-300);
  border-radius: var(--radius);
  font-size: 0.9375rem;
  outline: none;
  transition: border-color var(--transition);
}

.chat-input-area input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(21, 101, 192, 0.1);
}

.chat-input-area button {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.25rem;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  font-size: 1rem;
}

.chat-input-area button:hover {
  background: var(--color-primary-dark);
}

/* ==========================================================================
   ALERTS / NOTIFICATIONS
   ========================================================================== */
.alert {
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  font-size: 0.9375rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  animation: slideDown 0.3s ease;
}

.alert-success {
  background: var(--color-success-bg);
  border: 1px solid rgba(5, 150, 105, 0.2);
  color: var(--color-success);
}

.alert-error {
  background: var(--color-danger-bg);
  border: 1px solid rgba(220, 38, 38, 0.2);
  color: var(--color-danger);
}

.alert-warning {
  background: var(--color-warning-bg);
  border: 1px solid rgba(217, 119, 6, 0.2);
  color: var(--color-warning);
}

.alert-info {
  background: var(--color-info-bg);
  border: 1px solid rgba(3, 105, 161, 0.2);
  color: var(--color-info);
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================================================
   MODAL
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  animation: fadeIn 0.2s ease;
}

.modal {
  background: #fff;
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 520px;
  max-height: 85vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  animation: modalIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--color-gray-200);
}

.modal-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-gray-800);
}

.modal-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: none;
  background: transparent;
  color: var(--color-gray-400);
  font-size: 1.25rem;
  cursor: pointer;
  border-radius: var(--radius);
  transition: all var(--transition);
}

.modal-close:hover {
  background: var(--color-gray-100);
  color: var(--color-gray-700);
}

.modal-body {
  padding: 1.5rem;
  overflow-y: auto;
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--color-gray-200);
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(10px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

/* ==========================================================================
   TABS
   ========================================================================== */
.tabs {
  display: flex;
  border-bottom: 2px solid var(--color-gray-200);
  margin-bottom: 1.5rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.tab {
  padding: 0.75rem 1.25rem;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-gray-600);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

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

.tab.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* ==========================================================================
   STAT CARDS
   ========================================================================== */
.stat-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

@media (min-width: 768px) {
  .stat-cards {
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
  }
}

.stat-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 1rem;
  border: 1px solid var(--color-gray-100);
  border-left: 3px solid var(--color-primary);
  text-align: center;
  transition: all var(--transition);
}

.stat-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.stat-card .stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}

@media (min-width: 768px) {
  .stat-card .stat-value {
    font-size: 1.75rem;
  }
}

.stat-card .stat-label {
  font-size: 0.75rem;
  color: var(--color-gray-600);
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

/* ==========================================================================
   BANNER AD PLACEHOLDER
   ========================================================================== */
.ad-banner-placeholder {
  background: linear-gradient(135deg, var(--color-gray-100) 0%, var(--color-gray-50) 100%);
  border: 2px dashed var(--color-gray-300);
  border-radius: var(--radius-lg);
  padding: 2rem 1rem;
  text-align: center;
  color: var(--color-gray-500);
}

.ad-banner-placeholder h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-gray-700);
  margin: 0 0 0.25rem;
}

.ad-banner-placeholder p {
  font-size: 0.75rem;
  color: var(--color-gray-500);
  margin: 0 0 0.75rem;
}

/* ==========================================================================
   AVATAR / PROFILE
   ========================================================================== */
.avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 1.125rem;
  flex-shrink: 0;
}

.avatar-lg {
  width: 72px;
  height: 72px;
  font-size: 1.75rem;
}

.avatar-sm {
  width: 36px;
  height: 36px;
  font-size: 0.875rem;
}

/* ==========================================================================
   BADGE / TAG
   ========================================================================== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-full);
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.badge-primary {
  background: var(--color-primary-bg);
  color: var(--color-primary);
}

.badge-success {
  background: var(--color-success-bg);
  color: var(--color-success);
}

.badge-warning {
  background: var(--color-warning-bg);
  color: var(--color-warning);
}

.badge-danger {
  background: var(--color-danger-bg);
  color: var(--color-danger);
}

/* ==========================================================================
   PAGINATION
   ========================================================================== */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.375rem;
  margin-top: 2rem;
}

.pagination a,
.pagination span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius);
  color: var(--color-gray-700);
  transition: all var(--transition);
}

.pagination a {
  border: 1px solid var(--color-gray-200);
}

.pagination a:hover {
  background: var(--color-primary-bg);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.pagination .active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

/* ==========================================================================
   EMPTY STATE
   ========================================================================== */
.empty-state {
  text-align: center;
  padding: 3rem 1.5rem;
}

.empty-state i {
  font-size: 3rem;
  color: var(--color-gray-300);
  margin-bottom: 1rem;
}

.empty-state h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-gray-700);
  margin-bottom: 0.5rem;
}

.empty-state p {
  font-size: 0.9375rem;
  color: var(--color-gray-500);
  margin-bottom: 1.5rem;
}

/* ==========================================================================
   LOADING / SKELETON
   ========================================================================== */
.skeleton {
  background: linear-gradient(90deg, var(--color-gray-200) 25%, var(--color-gray-100) 50%, var(--color-gray-200) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

.skeleton-text {
  height: 1rem;
}

.skeleton-title {
  height: 1.5rem;
  width: 60%;
}

.skeleton-image {
  aspect-ratio: 4 / 3;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ==========================================================================
   STICKY HEADER SHADOW ON SCROLL
   ========================================================================== */
.site-header.scrolled {
  box-shadow: var(--shadow-lg);
}

/* ==========================================================================
   AUTH PAGES
   ========================================================================== */
.auth-container {
  max-width: 440px;
  margin: 2rem auto;
  padding: 0 1rem;
}

@media (min-width: 768px) {
  .auth-container {
    margin: 4rem auto;
  }
}

.auth-card {
  background: #fff;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-gray-100);
  overflow: hidden;
}

.auth-header {
  text-align: center;
  padding: 2rem 2rem 1rem;
}

.auth-header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-secondary);
  margin-bottom: 0.5rem;
}

.auth-header p {
  font-size: 0.9375rem;
  color: var(--color-gray-600);
}

.auth-body {
  padding: 1.5rem 2rem 2rem;
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 1.5rem 0;
  color: var(--color-gray-400);
  font-size: 0.8125rem;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-gray-200);
}

.btn-google {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  width: 100%;
  padding: 0.75rem;
  border: 1.5px solid var(--color-gray-300);
  border-radius: var(--radius);
  background: #fff;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-gray-700);
  cursor: pointer;
  transition: all var(--transition);
}

.btn-google:hover {
  background: var(--color-gray-50);
  border-color: var(--color-gray-400);
}

/* ==========================================================================
   UTILITY CLASSES
   ========================================================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-secondary); }
.text-success { color: var(--color-success); }
.text-danger { color: var(--color-danger); }
.text-muted { color: var(--color-gray-500); }

.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-medium { font-weight: 500; }

.hidden { display: none; }
.visible { visibility: visible; }
.invisible { visibility: hidden; }

.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }

.w-full { width: 100%; }
.h-full { height: 100%; }

.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }

.p-3 { padding: 0.75rem; }
.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }

.rounded { border-radius: var(--radius); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-full { border-radius: var(--radius-full); }

.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow { box-shadow: var(--shadow); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

.transition { transition: all var(--transition); }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* ==========================================================================
   RESPONSIVE BREAKPOINTS
   ========================================================================== */
@media (max-width: 479px) {
  .hide-xs {
    display: none !important;
  }
}

@media (max-width: 639px) {
  .hide-sm {
    display: none !important;
  }
}

@media (max-width: 767px) {
  .hide-mobile {
    display: none !important;
  }

  .mobile-full {
    width: 100% !important;
    flex: 1 0 100% !important;
  }
}

@media (min-width: 768px) {
  .hide-desktop {
    display: none !important;
  }

  .desktop-only {
    display: block !important;
  }
}

@media (max-width: 767px) {
  .mobile-stack {
    flex-direction: column !important;
  }
}

/* ==========================================================================
   PRINT STYLES
   ========================================================================== */
@media print {
  .site-header,
  .site-footer,
  .mobile-menu-overlay,
  .mobile-menu-panel,
  .filter-overlay,
  .filter-sidebar-mobile,
  .btn-post-ad,
  .chat-input-area,
  .ad-banner-placeholder {
    display: none !important;
  }

  body {
    background: #fff;
    color: #000;
    font-size: 12pt;
  }
}

/* ==========================================================================
   PWA INSTALL BANNER
   ========================================================================== */
.pwa-install-banner {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 55;
  background: #fff;
  border-top: 1px solid var(--color-gray-200);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.12);
  padding: 12px 16px;
  transform: translateY(100%);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  padding-bottom: max(12px, env(safe-area-inset-bottom));
}

.pwa-install-banner.open {
  transform: translateY(0);
}

.pwa-install-banner__content {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 500px;
  margin: 0 auto;
}

.pwa-install-banner__icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  flex-shrink: 0;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.pwa-install-banner__icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.pwa-install-banner__text {
  flex: 1;
  min-width: 0;
}

.pwa-install-banner__title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-gray-800);
  line-height: 1.3;
  margin: 0;
}

.pwa-install-banner__subtitle {
  font-size: 0.75rem;
  color: var(--color-gray-500);
  margin: 2px 0 0;
  line-height: 1.3;
}

.pwa-install-banner__actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.pwa-install-banner__btn-install {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition);
  min-height: 36px;
}

.pwa-install-banner__btn-install:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(21, 101, 192, 0.35);
}

.pwa-install-banner__btn-install:active {
  transform: translateY(0);
}

.pwa-install-banner__btn-dismiss {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: none;
  background: transparent;
  color: var(--color-gray-400);
  font-size: 1.125rem;
  cursor: pointer;
  border-radius: 8px;
  transition: all var(--transition);
  flex-shrink: 0;
}

.pwa-install-banner__btn-dismiss:hover {
  background: var(--color-gray-100);
  color: var(--color-gray-600);
}

@media (min-width: 769px) {
  .pwa-install-banner {
    display: none !important;
  }
}