/* ===== CSS CUSTOM PROPERTIES ===== */
:root {
  /* Twig Design System Colors */
  --color-primary: #0693e3;
  --color-secondary: #00d084;
  --color-accent: #9b51e0;
  --color-warning: #fcb900;
  --color-danger: #cf2e2e;
  --color-success: #00d084;
  
  /* Neutral Colors */
  --color-black: #000000;
  --color-white: #ffffff;
  --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: #2d2d2d;
  --color-gray-900: #1a1a1a;
  
  /* Typography */
  --font-family: 'Barlow', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  
  /* Spacing */
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-5: 1.25rem;
  --spacing-6: 1.5rem;
  --spacing-8: 2rem;
  --spacing-10: 2.5rem;
  --spacing-12: 3rem;
  --spacing-16: 4rem;
  --spacing-20: 5rem;
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-2xl: 1rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;
  
  /* Layout */
  --container-max-width: 1200px;
  --header-height: 80px;
  --grid-gap: var(--spacing-6);
}

/* Dark Theme */
[data-theme="dark"] {
  --color-bg-primary: var(--color-gray-900);
  --color-bg-secondary: var(--color-gray-800);
  --color-bg-tertiary: var(--color-gray-700);
  --color-text-primary: var(--color-white);
  --color-text-secondary: var(--color-gray-300);
  --color-text-tertiary: var(--color-gray-400);
  --color-border: var(--color-gray-600);
  --color-border-light: var(--color-gray-700);
  --color-primary: #9A1968;
}

/* Light Theme */
[data-theme="light"], :root {
  --color-bg-primary: var(--color-white);
  --color-bg-secondary: var(--color-gray-50);
  --color-bg-tertiary: var(--color-gray-100);
  --color-text-primary: var(--color-gray-900);
  --color-text-secondary: var(--color-gray-700);
  --color-text-tertiary: var(--color-gray-500);
  --color-border: var(--color-gray-200);
  --color-border-light: var(--color-gray-100);
}

/* ===== RESET & BASE STYLES ===== */
*, *::before, *::after {
  box-sizing: border-box;
}

* {
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  transition: background-color var(--transition-normal), color var(--transition-normal);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
}

input, button, textarea, select {
  font: inherit;
}

button {
  cursor: pointer;
}

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

a:hover {
  color: var(--color-accent);
}

/* ===== UTILITY CLASSES ===== */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

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

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
  padding: var(--spacing-3) var(--spacing-4);
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
  font-weight: 500;
  text-decoration: none;
  transition: all var(--transition-fast);
  cursor: pointer;
  background: none;
  white-space: nowrap;
}

.btn:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

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

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

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

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

.btn-outline {
  border-color: var(--color-border);
  color: var(--color-text-primary);
}

.btn-outline:hover {
  background-color: var(--color-bg-secondary);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-icon {
  padding: var(--spacing-2);
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
}

.btn-icon:hover {
  background-color: var(--color-bg-secondary);
  color: var(--color-primary);
}

/* ===== HEADER ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-bg-primary);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
}

.logo-image {
  height: 40px;
  width: auto;
  object-fit: contain;
}

.logo-text {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-text-primary);
}

.header-controls {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
}

/* Theme Toggle */
.theme-icon {
  transition: all var(--transition-fast);
}

[data-theme="light"] .sun-icon {
  opacity: 1;
}

[data-theme="light"] .moon-icon {
  opacity: 0;
  position: absolute;
}

[data-theme="dark"] .sun-icon {
  opacity: 0;
  position: absolute;
}

[data-theme="dark"] .moon-icon {
  opacity: 1;
}

/* Search Container */
.search-container {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
  padding: 0 var(--spacing-4);
  margin: 0 calc(-1 * var(--spacing-4));
}

.search-container.active {
  max-height: 100px;
  padding: var(--spacing-4);
  border-top: 1px solid var(--color-border);
}

.search-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.search-input {
  width: 100%;
  padding: var(--spacing-3) var(--spacing-4);
  padding-right: var(--spacing-10);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background-color: var(--color-bg-secondary);
  color: var(--color-text-primary);
  font-size: var(--font-size-base);
  transition: all var(--transition-fast);
}

.search-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgb(6 147 227 / 0.1);
}

.search-input::placeholder {
  color: var(--color-text-tertiary);
}

.search-clear {
  position: absolute;
  right: var(--spacing-2);
  padding: var(--spacing-1);
}

/* Filters Container */
.filters-container {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
  padding: 0 var(--spacing-4);
  margin: 0 calc(-1 * var(--spacing-4));
}

.filters-container.active {
  max-height: 200px;
  padding: var(--spacing-4);
  border-top: 1px solid var(--color-border);
}

.filters-content {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
  flex-wrap: wrap;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
}

.filter-label {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
}

.category-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-2);
  margin-top: var(--spacing-2);
}

.category-tag {
  padding: var(--spacing-2) var(--spacing-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background-color: var(--color-bg-secondary);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.category-tag:hover {
  background-color: var(--color-bg-tertiary);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.category-tag.active {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

.category-tag:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgb(6 147 227 / 0.1);
}

/* ===== MAIN CONTENT ===== */
.main {
  min-height: calc(100vh - var(--header-height) - 100px);
  padding: var(--spacing-8) 0;
}

/* Loading State */
.loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-16) 0;
  text-align: center;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border);
  border-top: 3px solid var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: var(--spacing-4);
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Error & Empty States */
.error-state,
.empty-state {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-16) 0;
}

.error-content,
.empty-content {
  text-align: center;
  max-width: 400px;
}

.error-content svg,
.empty-content svg {
  margin: 0 auto var(--spacing-4);
  color: var(--color-text-tertiary);
}

.error-content h2,
.empty-content h2 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-2);
}

.error-content p,
.empty-content p {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-6);
}

/* Posts Grid */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--grid-gap);
  margin-bottom: var(--spacing-8);
}

/* Post Card */
.post-card {
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--transition-normal);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.post-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.post-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  background-color: var(--color-bg-tertiary);
}

.post-content {
  padding: var(--spacing-6);
  display: flex;
  flex-direction: column;
  flex: 1;
}

.post-category {
  display: inline-block;
  padding: var(--spacing-1) var(--spacing-3);
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: var(--font-size-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
  margin-bottom: var(--spacing-3);
}

.post-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-3);
  line-height: 1.4;
}

.post-abstract {
  color: var(--color-text-secondary);
  line-height: 1.5;
  flex: 1;
}

.post-abstract.truncated {
  margin-bottom: var(--spacing-2);
}

.post-abstract.expanded {
  margin-bottom: var(--spacing-4);
}

.read-more-link {
  color: var(--color-primary);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  text-decoration: underline;
  margin-bottom: var(--spacing-4);
  display: inline-block;
  transition: color var(--transition-fast);
}

.read-more-link:hover {
  color: var(--color-accent);
}

.post-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--spacing-4);
  border-top: 1px solid var(--color-border-light);
  margin-top: auto;
}

.post-author {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  flex: 1;
}

.author-image {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  object-fit: cover;
}

.author-name {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
}

.post-date {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
  flex-shrink: 0;
  margin-left: var(--spacing-2);
}

/* Load More */
.load-more-container {
  text-align: center;
  margin-top: var(--spacing-8);
}

/* ===== FOOTER ===== */
.footer {
  background-color: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-8) 0;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-4);
}

.footer p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-2);
}

.footer p:last-child {
  margin-bottom: 0;
}

.last-updated {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  margin: 0;
  flex: 1;
}

.btn-refresh {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-2) var(--spacing-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background-color: var(--color-bg-primary);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

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

.btn-refresh:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-refresh:disabled:hover {
  background-color: var(--color-bg-primary);
  border-color: var(--color-border);
  color: var(--color-text-secondary);
}

.refresh-spinning {
  animation: spin 1s linear infinite;
}

@media (max-width: 768px) {
  .footer-content {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-3);
  }
  
  .last-updated {
    text-align: center;
  }
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-3);
  }
  
  .header-content {
    height: 60px;
  }
  
  .logo-image {
    height: 32px;
  }
  
  .logo-text {
    font-size: var(--font-size-lg);
  }
  
  .posts-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-4);
  }
  
  .post-content {
    padding: var(--spacing-4);
  }
  
  .filters-content {
    flex-direction: column;
    align-items: stretch;
  }
  
  .filter-select {
    min-width: auto;
  }
}

@media (max-width: 480px) {
  .header-controls {
    gap: var(--spacing-1);
  }
  
  .btn-icon {
    padding: var(--spacing-1);
  }
  
  .post-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  
  .post-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    flex: 1;
    min-width: 0;
  }
  
  .author-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  
  .post-date {
    flex-shrink: 0;
    margin-left: var(--spacing-2);
  }
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.post-card {
  animation: fadeIn 0.5s ease-out;
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* High contrast mode */
@media (prefers-contrast: high) {
  :root {
    --color-border: var(--color-gray-900);
    --color-border-light: var(--color-gray-700);
  }
  
  [data-theme="dark"] {
    --color-border: var(--color-white);
    --color-border-light: var(--color-gray-300);
  }
}

/* Focus visible for better keyboard navigation */
.btn:focus-visible,
.search-input:focus-visible,
.filter-select:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ===== CUSTOM NOTIFICATIONS ===== */
.custom-notification {
  position: fixed;
  top: var(--spacing-4);
  right: var(--spacing-4);
  z-index: 1000;
  max-width: 400px;
  background-color: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  animation: slideInRight 0.3s ease-out;
}

.notification-content {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-3);
  padding: var(--spacing-4);
}

.notification-icon img {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-lg);
  object-fit: cover;
}

.notification-text {
  flex: 1;
  min-width: 0;
}

.notification-text h4 {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text-primary);
  margin: 0 0 var(--spacing-1) 0;
  line-height: 1.4;
}

.notification-text p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.4;
}

.notification-close {
  background: none;
  border: none;
  color: var(--color-text-tertiary);
  cursor: pointer;
  padding: var(--spacing-1);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.notification-close:hover {
  background-color: var(--color-bg-secondary);
  color: var(--color-text-primary);
}

@keyframes slideInRight {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* Mobile notification positioning */
@media (max-width: 768px) {
  .custom-notification {
    top: var(--spacing-3);
    right: var(--spacing-3);
    left: var(--spacing-3);
    max-width: none;
  }
}

/* ===== NOTIFICATION PERMISSION BANNER ===== */
.notification-permission-banner {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  z-index: 999;
  background-color: var(--color-bg-primary);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  transform: translateY(-100%);
  opacity: 0;
  transition: all var(--transition-normal);
}

.notification-permission-banner.show {
  transform: translateY(0);
  opacity: 1;
}

.notification-banner-content {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
  padding: var(--spacing-4);
  max-width: var(--container-max-width);
  margin: 0 auto;
}

.notification-banner-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background-color: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

.notification-banner-text {
  flex: 1;
  min-width: 0;
}

.notification-banner-text h4 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text-primary);
  margin: 0 0 var(--spacing-1) 0;
  line-height: 1.4;
}

.notification-banner-text p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.4;
}

.notification-banner-actions {
  display: flex;
  gap: var(--spacing-2);
  flex-shrink: 0;
}

.notification-enable-btn {
  padding: var(--spacing-3) var(--spacing-5);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-lg);
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.notification-enable-btn:hover {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
}

.notification-dismiss-btn {
  padding: var(--spacing-3) var(--spacing-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background-color: transparent;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.notification-dismiss-btn:hover {
  background-color: var(--color-bg-secondary);
  color: var(--color-text-primary);
}

/* Mobile notification banner */
@media (max-width: 768px) {
  .notification-banner-content {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3);
  }
  
  .notification-banner-actions {
    width: 100%;
    justify-content: center;
  }
  
  .notification-enable-btn,
  .notification-dismiss-btn {
    flex: 1;
    min-width: 0;
  }
}

/* ===== PWA INSTALL POPUP ===== */
.pwa-install-popup {
  position: fixed;
  bottom: var(--spacing-4);
  left: var(--spacing-4);
  right: var(--spacing-4);
  z-index: 1000;
  background-color: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  padding: var(--spacing-6);
  transform: translateY(100%);
  opacity: 0;
  transition: all var(--transition-normal);
}

.pwa-install-popup.show {
  transform: translateY(0);
  opacity: 1;
}

.pwa-install-content {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
}

.pwa-install-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  object-fit: cover;
  flex-shrink: 0;
}

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

.pwa-install-text h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text-primary);
  margin: 0 0 var(--spacing-1) 0;
  line-height: 1.4;
}

.pwa-install-text p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.4;
}

.pwa-install-actions {
  display: flex;
  gap: var(--spacing-2);
  flex-shrink: 0;
}

.pwa-install-btn {
  padding: var(--spacing-2) var(--spacing-4);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-lg);
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.pwa-install-btn:hover {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
}

.pwa-dismiss-btn {
  padding: var(--spacing-2) var(--spacing-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background-color: transparent;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.pwa-dismiss-btn:hover {
  background-color: var(--color-bg-secondary);
  color: var(--color-text-primary);
}

/* Mobile PWA popup */
@media (max-width: 768px) {
  .pwa-install-popup {
    bottom: var(--spacing-3);
    left: var(--spacing-3);
    right: var(--spacing-3);
    padding: var(--spacing-4);
  }
  
  .pwa-install-content {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-3);
  }
  
  .pwa-install-actions {
    width: 100%;
    justify-content: center;
  }
  
  .pwa-install-btn,
  .pwa-dismiss-btn {
    flex: 1;
    min-width: 0;
  }
}