/* Instagram Clone - Modern Clean Design */
:root {
  /* Instagram Color Palette */
  --instagram-white: #ffffff;
  --instagram-black: #000000;
  --instagram-gray: #f7f7f7;
  --instagram-dark-gray: #262626;
  --instagram-light-gray: #fafafa;
  --instagram-border: #dbdbdb;
  --instagram-text: #333333;
  --instagram-text-light: #8e8e8e;
  --instagram-blue: #0095f6;
  --instagram-blue-dark: #1877f2;

  /* Instagram Typography */
  --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-secondary: 'Instagram Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  /* Instagram Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 48px;

  /* Instagram Border Radius */
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
  --border-radius-xl: 16px;

  /* Instagram Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.2);

  /* Instagram Transitions */
  --transition-fast: 0.15s ease-out;
  --transition-normal: 0.3s ease-out;
  --transition-slow: 0.5s ease-out;
}

/* Reset and Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-primary);
  font-size: 16px;
  line-height: 1.5;
  color: var(--instagram-text);
  background-color: var(--instagram-light-gray);
}

body {
  min-height: 100vh;
  background-color: var(--instagram-light-gray);
  overflow-x: hidden;
}

/* Instagram Header */
.instagram-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--instagram-white);
  border-bottom: 1px solid var(--instagram-border);
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 100%;
  width: 100%;
}

.instagram-logo {
  font-family: var(--font-secondary);
  font-size: 28px;
  font-weight: 600;
  color: var(--instagram-black);
  text-decoration: none;
  background: linear-gradient(45deg, #f09433 0%,#e6683c 25%,#dc2743 50%,#cc2366 75%,#bc1888 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.header-search {
  flex: 1;
  max-width: 268px;
  margin: 0 var(--spacing-lg);
  position: relative;
}

.search-input {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-lg);
  border: 1px solid var(--instagram-border);
  border-radius: 8px;
  background-color: var(--instagram-gray);
  color: var(--instagram-dark-gray);
  font-size: 14px;
  outline: none;
  transition: var(--transition-fast);
}

.search-input:focus {
  background-color: var(--instagram-white);
  border-color: var(--instagram-blue);
}

.search-btn {
  position: absolute;
  right: var(--spacing-sm);
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--instagram-text-light);
  cursor: pointer;
  padding: var(--spacing-xs);
  font-size: 14px;
}

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

.header-action-btn {
  background: none;
  border: none;
  padding: var(--spacing-sm);
  cursor: pointer;
  color: var(--instagram-dark-gray);
  font-size: 24px;
  border-radius: 50%;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
}

.header-action-btn:hover {
  background-color: var(--instagram-gray);
}

/* Stories Section */
.stories-container {
  background-color: var(--instagram-white);
  border: 1px solid var(--instagram-border);
  border-radius: var(--border-radius-lg);
  margin: var(--spacing-md);
  padding: var(--spacing-lg);
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.stories-container::-webkit-scrollbar {
  display: none;
}

.stories-list {
  display: flex;
  gap: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
}

.story-item {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
  cursor: pointer;
  transition: var(--transition-fast);
}

.story-item:hover {
  transform: scale(1.05);
}

.story-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: 2px solid var(--instagram-border);
  overflow: visible;
  position: relative;
  background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
  padding: 2px;
}

.story-avatar.has-story {
  background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
}

.story-avatar img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--instagram-white);
}

.add-story-avatar {
  background: var(--instagram-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--instagram-text-light);
  font-size: 32px;
  border: 2px solid var(--instagram-white);
}

/* Stories count indicator */
.stories-count {
  position: absolute;
  top: -5px;
  right: -5px;
  background: #ff3040;
  color: white;
  border-radius: 50%;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: bold;
  border: 2px solid white;
  z-index: 10;
}

.story-username,
.story-name {
  font-size: 12px;
  font-weight: 500;
  color: var(--instagram-dark-gray);
  text-align: center;
  max-width: 64px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Main Feed */
.main-feed {
  max-width: 600px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Post Card */
.post-card {
  background-color: var(--instagram-white);
  border: 1px solid var(--instagram-border);
  border-radius: var(--border-radius-lg);
  margin-bottom: var(--spacing-lg);
  overflow: hidden;
  animation: fadeInUp 0.6s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.post-header {
  padding: var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.author-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  overflow: hidden;
}

.author-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.author-info h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--instagram-dark-gray);
  margin: 0;
}

.author-info span {
  font-size: 12px;
  color: var(--instagram-text-light);
}

/* Author and section links */
.author-link, .section-link {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-fast);
}

.author-link:hover, .section-link:hover {
  color: var(--instagram-blue);
  text-decoration: underline;
}

/* Post media link */
.post-media-link {
  text-decoration: none;
  color: inherit;
  display: block;
}

.post-media-link:hover .post-media img {
  opacity: 0.9;
}

.post-menu {
  background: none;
  border: none;
  padding: var(--spacing-xs);
  cursor: pointer;
  color: var(--instagram-dark-gray);
  font-size: 20px;
}

/* Post Media */
.post-media {
  position: relative;
  width: 100%;
  max-height: 600px;
  overflow: hidden;
}

.post-media img,
.post-media video {
  width: 100%;
  height: auto;
  max-height: 600px;
  object-fit: cover;
  display: block;
  cursor: pointer;
  transition: transform 0.3s ease;
}

.post-media:hover img {
  transform: scale(1.02);
}

.post-media:hover video {
  transform: scale(1.02);
}

/* Make images scrollable on mobile */
@media (max-width: 768px) {
  .post-media img,
  .post-media video {
    max-height: 400px;
    object-fit: contain;
    cursor: zoom-in;
  }

  .post-media {
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
}

/* Media indicator for multiple media */
.media-indicator {
  position: absolute;
  top: 10px;
  right: 10px;
  background: rgba(0, 0, 0, 0.7);
  color: white;
  padding: 4px 8px;
  border-radius: 12px;
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 4px;
  z-index: 2;
}

/* Media carousel for multiple media */
.media-carousel {
  position: relative;
  width: 100%;
  max-height: 600px;
  overflow: hidden;
}

.media-slide {
  display: none;
  width: 100%;
  height: 100%;
}

.media-slide.active {
  display: block;
}

.media-slide img,
.media-slide video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.media-navigation {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.8);
  border: none;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: #333;
  font-size: 16px;
  transition: all 0.3s ease;
  z-index: 3;
}

.media-navigation:hover {
  background: rgba(255, 255, 255, 0.9);
  transform: translateY(-50%) scale(1.1);
}

.media-navigation.prev {
  left: 10px;
}

.media-navigation.next {
  right: 10px;
}

.media-dots {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 3;
}

.media-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: background 0.3s ease;
}

.media-dot.active {
  background: rgba(255, 255, 255, 0.9);
}

/* Post Time Link */
.post-time-link {
  text-decoration: none;
  color: inherit;
  display: block;
}

.post-time-link:hover .post-time {
  opacity: 0.7;
}

/* Post Actions */
.post-actions {
  padding: var(--spacing-sm) var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.action-buttons {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.action-btn {
  background: none;
  border: none;
  padding: var(--spacing-xs);
  cursor: pointer;
  color: var(--instagram-dark-gray);
  font-size: 24px;
  transition: var(--transition-fast);
}

.action-btn:hover {
  color: var(--instagram-black);
}

.action-btn.liked {
  color: #ed4956;
  animation: heartBounce 0.6s ease;
}

@keyframes heartBounce {
  0%, 20%, 50%, 80%, 100% {
    transform: scale(1);
  }
  40% {
    transform: scale(1.2);
  }
  60% {
    transform: scale(1.1);
  }
}

/* Post Likes */
.post-likes {
  padding: 0 var(--spacing-md);
  font-size: 14px;
  font-weight: 600;
  color: var(--instagram-dark-gray);
}

/* Post Caption */
.post-caption {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: 14px;
  line-height: 1.4;
  color: var(--instagram-dark-gray);
}

.post-caption .username {
  font-weight: 600;
  color: var(--instagram-black);
}

/* Post Comments */
.post-comments {
  padding: 0 var(--spacing-md) var(--spacing-md);
}

.view-comments {
  color: var(--instagram-text-light);
  font-size: 14px;
  text-decoration: none;
  margin-bottom: var(--spacing-xs);
  display: block;
}

.comment-item {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.comment-author {
  font-weight: 600;
  color: var(--instagram-black);
  font-size: 14px;
}

.comment-text {
  color: var(--instagram-dark-gray);
  font-size: 14px;
}

/* Post Time */
.post-time {
  padding: 0 var(--spacing-md) var(--spacing-md);
  color: var(--instagram-text-light);
  font-size: 12px;
}

/* Add Comment */
.add-comment {
  padding: var(--spacing-sm) var(--spacing-md);
  border-top: 1px solid var(--instagram-border);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.add-comment input {
  flex: 1;
  border: none;
  outline: none;
  font-size: 14px;
  color: var(--instagram-dark-gray);
  background: transparent;
}

.add-comment input::placeholder {
  color: var(--instagram-text-light);
}

.post-comment-btn {
  background: none;
  border: none;
  color: var(--instagram-blue);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  opacity: 0.5;
  transition: var(--transition-fast);
}

.post-comment-btn.active {
  opacity: 1;
}

/* Bottom Navigation */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--instagram-white);
  border-top: 1px solid var(--instagram-border);
  padding: var(--spacing-sm);
  padding-bottom: calc(var(--spacing-sm) + env(safe-area-inset-bottom));
  display: flex;
  justify-content: space-around;
  z-index: 1000;
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: var(--spacing-xs);
  text-decoration: none;
  color: var(--instagram-text-light);
  font-size: 24px;
  transition: var(--transition-fast);
  border-radius: var(--border-radius-md);
  min-width: 48px;
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-item.active {
  color: var(--instagram-black);
}

.nav-item:hover {
  background-color: var(--instagram-gray);
}

.nav-label {
  font-size: 10px;
  font-weight: 500;
}

/* Stories Modal */
.stories-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.9);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.stories-modal.active {
  opacity: 1;
  visibility: visible;
}

.stories-modal-content {
  position: relative;
  width: 100%;
  height: 100%;
  max-width: 400px;
  max-height: 100vh;
  display: flex;
  flex-direction: column;
}

.story-viewer {
  flex: 1;
  position: relative;
  background-color: #000;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  margin: var(--spacing-md);
}

.story-progress {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background-color: rgba(255, 255, 255, 0.3);
  z-index: 10;
  display: flex;
  gap: 2px;
  padding: var(--spacing-sm);
}

.progress-bar {
  flex: 1;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.5);
  border-radius: 1px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background-color: #fff;
  border-radius: 1px;
  transition: width 0.1s linear;
}

.story-header {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  padding: var(--spacing-lg) var(--spacing-md) 0;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.story-author-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid #fff;
}

.story-author-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.story-author-info {
  flex: 1;
}

.story-author-name {
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  margin: 0;
}

.story-time {
  color: rgba(255, 255, 255, 0.8);
  font-size: 12px;
  margin: 0;
}

.story-close {
  background: none;
  border: none;
  color: #fff;
  font-size: 24px;
  cursor: pointer;
  padding: var(--spacing-xs);
  opacity: 0.8;
  transition: var(--transition-fast);
}

.story-close:hover {
  opacity: 1;
}

.story-media {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.story-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--spacing-xl);
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.5));
  color: #fff;
}

.story-text {
  font-size: 16px;
  line-height: 1.4;
  margin-bottom: var(--spacing-md);
  word-wrap: break-word;
}

.story-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.story-action-btn {
  background: none;
  border: none;
  color: #fff;
  font-size: 24px;
  cursor: pointer;
  opacity: 0.8;
  transition: var(--transition-fast);
}

.story-action-btn:hover {
  opacity: 1;
}

/* Navigation Controls */
.story-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.3);
  border: none;
  color: #fff;
  font-size: 24px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
  z-index: 10;
}

.story-nav:hover {
  background: rgba(0, 0, 0, 0.5);
}

.story-nav.prev {
  left: var(--spacing-md);
}

.story-nav.next {
  right: var(--spacing-md);
}

/* Loading States */
.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #fff;
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Responsive Design */
@media (max-width: 768px) {
  .instagram-header {
    padding: var(--spacing-sm) var(--spacing-md);
  }

  .bottom-nav {
    display: flex !important;
    z-index: 1000;
  }

  .instagram-logo {
    font-size: 24px;
  }

  .header-search {
    display: none; /* Hide search on mobile, use bottom nav instead */
  }

  .main-feed {
    padding: 0 var(--spacing-sm);
  }

  .post-card {
    margin-bottom: var(--spacing-md);
    border-radius: 0;
    border-left: none;
    border-right: none;
  }

  .stories-container {
    margin: var(--spacing-sm);
    padding: var(--spacing-md);
  }

  .story-viewer {
    margin: var(--spacing-sm);
    border-radius: var(--spacing-md);
  }

  .story-content {
    padding: var(--spacing-lg);
  }
}

@media (max-width: 480px) {
  .header-actions {
    gap: var(--spacing-md);
  }

  .action-buttons {
    gap: var(--spacing-sm);
  }

  .nav-label {
    display: none;
  }

  .nav-item {
    min-width: 44px;
    min-height: 44px;
  }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
  :root {
    --instagram-white: #121212;
    --instagram-gray: #1e1e1e;
    --instagram-light-gray: #000000;
    --instagram-border: #2c2c2c;
    --instagram-text: #e1e1e1;
    --instagram-text-light: #a8a8a8;
  }
}

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

/* Focus States */
.header-action-btn:focus,
.action-btn:focus,
.nav-item:focus,
.story-close:focus,
.story-action-btn:focus {
  outline: 2px solid var(--instagram-blue);
  outline-offset: 2px;
}

/* Section Feed Styles */
.section-header-feed {
  background-color: var(--instagram-white);
  border: 1px solid var(--instagram-border);
  border-left: none;
  border-right: none;
  padding: var(--spacing-md) var(--spacing-lg);
  margin: var(--spacing-lg) 0 var(--spacing-sm) 0;
}

.section-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.section-title-feed {
  font-size: 18px;
  font-weight: 600;
  color: var(--instagram-dark-gray);
  margin: 0;
}

.view-all-link {
  color: var(--instagram-blue);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  transition: var(--transition-fast);
}

.view-all-link:hover {
  color: var(--instagram-blue-dark);
}

/* Section Posts Horizontal Scroll */
.section-posts-scroll {
  margin-bottom: var(--spacing-xl);
  overflow-x: hidden;
}

.posts-scroll-container {
  display: flex;
  gap: var(--spacing-md);
  padding: 0 var(--spacing-lg);
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.posts-scroll-container::-webkit-scrollbar {
  display: none;
}

/* Compact Post Card */
.post-card-compact {
  flex-shrink: 0;
  width: 280px;
  background-color: var(--instagram-white);
  border: 1px solid var(--instagram-border);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  animation: fadeInUp 0.6s ease-out;
}

.post-header-compact {
  padding: var(--spacing-sm) var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.author-avatar-compact {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
}

.author-avatar-compact img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.author-info-compact {
  min-width: 0;
  flex: 1;
}

.author-name {
  font-size: 12px;
  font-weight: 600;
  color: var(--instagram-dark-gray);
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.post-menu-compact {
  background: none;
  border: none;
  padding: var(--spacing-xs);
  cursor: pointer;
  color: var(--instagram-dark-gray);
  font-size: 14px;
  border-radius: 50%;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.post-menu-compact:hover {
  background-color: var(--instagram-gray);
}

/* Media Scroll Container */
.post-media-compact {
  position: relative;
  width: 100%;
  height: 280px;
  overflow: hidden;
}

.media-scroll-container {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  transition: transform 0.3s ease;
}

.media-slide {
  flex-shrink: 0;
  width: 100%;
  height: 100%;
  display: none;
  position: relative;
}

.media-slide.active {
  display: block;
}

.media-slide img,
.media-slide video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Media Navigation */
.media-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.5);
  border: none;
  color: #fff;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: var(--transition-fast);
  z-index: 2;
}

.media-nav:hover {
  background: rgba(0, 0, 0, 0.7);
}

.media-prev {
  left: var(--spacing-sm);
}

.media-next {
  right: var(--spacing-sm);
}

/* Media Indicators */
.media-indicators {
  position: absolute;
  bottom: var(--spacing-md);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--spacing-xs);
  z-index: 2;
}

.indicator {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.5);
  transition: var(--transition-fast);
  cursor: pointer;
}

.indicator.active {
  background-color: #fff;
}

/* Post Actions Compact */
.post-actions-compact {
  padding: var(--spacing-sm) var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.action-buttons-compact {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.action-btn-compact {
  background: none;
  border: none;
  padding: var(--spacing-xs);
  cursor: pointer;
  color: var(--instagram-dark-gray);
  font-size: 18px;
  transition: var(--transition-fast);
  border-radius: 50%;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.action-btn-compact:hover {
  background-color: var(--instagram-gray);
}

.like-btn.liked .fa-heart {
  color: #ed4956 !important;
}

.like-btn.liked .fa-heart:before {
  content: "\f004"; /* fas fa-heart */
}

/* Post Stats Compact */
.post-likes-compact {
  padding: 0 var(--spacing-md);
  font-size: 12px;
  font-weight: 600;
  color: var(--instagram-dark-gray);
}

/* Post Caption Compact */
.post-caption-compact {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: 12px;
  line-height: 1.4;
  color: var(--instagram-dark-gray);
}

.post-caption-compact .username {
  font-weight: 600;
  color: var(--instagram-black);
  margin-right: var(--spacing-xs);
}

.read-more {
  color: var(--instagram-text-light);
  cursor: pointer;
}

/* Post Time Compact */
.post-time-compact {
  padding: 0 var(--spacing-md) var(--spacing-sm);
  color: var(--instagram-text-light);
  font-size: 10px;
}

/* Quick Links */
.post-quick-links {
  padding: 0 var(--spacing-md) var(--spacing-md);
  display: flex;
  gap: var(--spacing-sm);
}

.quick-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--instagram-blue);
  text-decoration: none;
  font-size: 12px;
  font-weight: 500;
  transition: var(--transition-fast);
}

.quick-link:hover {
  color: var(--instagram-blue-dark);
  text-decoration: underline;
}

/* Section Info Header */
.section-info-header {
  background-color: var(--instagram-white);
  border-bottom: 1px solid var(--instagram-border);
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.section-banner {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  overflow: hidden;
  margin-bottom: var(--spacing-md);
  border: 4px solid var(--instagram-border);
}

.section-banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.section-banner-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--instagram-blue), var(--instagram-blue-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 48px;
}

.section-details h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--instagram-dark-gray);
  margin: 0 0 var(--spacing-sm) 0;
}

.section-details p {
  font-size: 16px;
  color: var(--instagram-text-light);
  line-height: 1.5;
  margin: 0 0 var(--spacing-lg) 0;
  max-width: 600px;
}

.section-details .section-stats {
  display: flex;
  gap: var(--spacing-xl);
  justify-content: center;
}

/* Empty Feed */
.empty-feed {
  text-align: center;
  padding: var(--spacing-xxl) var(--spacing-lg);
  color: var(--instagram-text-light);
  background-color: var(--instagram-white);
  border: 1px solid var(--instagram-border);
  border-radius: var(--border-radius-lg);
  margin: var(--spacing-lg);
}

.empty-feed .empty-icon {
  font-size: 64px;
  margin-bottom: var(--spacing-lg);
  opacity: 0.5;
}

.empty-feed h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--instagram-dark-gray);
  margin: 0 0 var(--spacing-sm) 0;
}

.empty-feed p {
  font-size: 14px;
  margin: 0;
}

/* Sections Page Styles */
.sections-main {
  padding: var(--spacing-lg);
  background-color: var(--instagram-light-gray);
  min-height: calc(100vh - 140px);
}

.sections-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  max-width: 1200px;
  margin: 0 auto;
}

.section-card {
  background-color: var(--instagram-white);
  border: 1px solid var(--instagram-border);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.section-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.section-image {
  height: 160px;
  background: linear-gradient(135deg, var(--instagram-blue), var(--instagram-blue-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.section-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.section-icon {
  font-size: 48px;
  color: rgba(255, 255, 255, 0.9);
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.section-info {
  padding: var(--spacing-md);
}

.section-name {
  font-size: 18px;
  font-weight: 600;
  color: var(--instagram-dark-gray);
  margin: 0 0 var(--spacing-sm) 0;
  line-height: 1.3;
}

.section-description {
  font-size: 14px;
  color: var(--instagram-text-light);
  line-height: 1.4;
  margin: 0 0 var(--spacing-md) 0;
}

.section-stats {
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--instagram-gray);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.stat {
  text-align: center;
  flex: 1;
}

.stat-number {
  display: block;
  font-size: 16px;
  font-weight: 700;
  color: var(--instagram-dark-gray);
}

.stat-label {
  font-size: 12px;
  color: var(--instagram-text-light);
  font-weight: 500;
}

.empty-sections {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--spacing-xxl) var(--spacing-lg);
  color: var(--instagram-text-light);
  background-color: var(--instagram-white);
  border: 1px solid var(--instagram-border);
  border-radius: var(--border-radius-lg);
}

.empty-sections .empty-icon {
  font-size: 64px;
  margin-bottom: var(--spacing-lg);
  opacity: 0.5;
}

.empty-sections h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--instagram-dark-gray);
  margin: 0 0 var(--spacing-sm) 0;
}

.empty-sections p {
  font-size: 14px;
  margin: 0;
}

/* Profile Styles */
.profile-header {
  background-color: var(--instagram-white);
  padding: var(--spacing-xl) var(--spacing-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

.profile-avatar-section {
  flex-shrink: 0;
}

.profile-avatar {
  width: 77px;
  height: 77px;
  border-radius: 50%;
  overflow: hidden;
  border: 1px solid var(--instagram-border);
}

.profile-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.profile-stats {
  display: flex;
  gap: var(--spacing-xl);
  flex: 1;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: 18px;
  font-weight: 600;
  color: var(--instagram-dark-gray);
  display: block;
}

.stat-label {
  font-size: 14px;
  color: var(--instagram-text-light);
}

.profile-info {
  padding: 0 var(--spacing-lg) var(--spacing-lg);
}

.profile-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--instagram-dark-gray);
  margin: 0 0 var(--spacing-sm) 0;
}

.profile-bio {
  font-size: 14px;
  color: var(--instagram-dark-gray);
  line-height: 1.4;
  margin: 0 0 var(--spacing-md) 0;
}

.profile-actions {
  display: flex;
  gap: var(--spacing-sm);
}

.profile-btn {
  flex: 1;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
  border: 1px solid var(--instagram-border);
}

.profile-btn.primary-btn {
  background-color: var(--instagram-blue);
  color: var(--instagram-white);
  border-color: var(--instagram-blue);
}

.profile-btn.primary-btn:hover {
  background-color: var(--instagram-blue-dark);
}

.profile-btn.secondary-btn {
  background-color: var(--instagram-white);
  color: var(--instagram-dark-gray);
}

.profile-btn.secondary-btn:hover {
  background-color: var(--instagram-gray);
}

.profile-tabs {
  border-top: 1px solid var(--instagram-border);
  border-bottom: 1px solid var(--instagram-border);
  background-color: var(--instagram-white);
}

.tabs-container {
  display: flex;
  justify-content: space-around;
  padding: var(--spacing-sm) 0;
}

.tab-btn {
  background: none;
  border: none;
  padding: var(--spacing-sm);
  cursor: pointer;
  color: var(--instagram-text-light);
  font-size: 24px;
  transition: var(--transition-fast);
  border-radius: 6px;
  min-width: 48px;
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.tab-btn.active {
  color: var(--instagram-dark-gray);
  border-bottom: 1px solid var(--instagram-dark-gray);
}

.tab-btn:hover {
  background-color: var(--instagram-gray);
}

.profile-content {
  padding: var(--spacing-md);
}

.posts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  max-width: 600px;
  margin: 0 auto;
}

.grid-post {
  aspect-ratio: 1;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  background-color: var(--instagram-gray);
}

.grid-post img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-fast);
}

.grid-post:hover img {
  transform: scale(1.05);
}

.grid-post-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition-fast);
}

.grid-post:hover .grid-post-overlay {
  opacity: 1;
}

.post-stats {
  display: flex;
  gap: var(--spacing-lg);
  color: var(--instagram-white);
  font-weight: 600;
  font-size: 16px;
}

.post-stats span {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

.empty-state {
  text-align: center;
  padding: var(--spacing-xxl) var(--spacing-lg);
  color: var(--instagram-text-light);
}

.empty-icon {
  font-size: 64px;
  margin-bottom: var(--spacing-lg);
  opacity: 0.5;
}

.empty-state h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--instagram-dark-gray);
  margin: 0 0 var(--spacing-sm) 0;
}

.empty-state p {
  font-size: 14px;
  margin: 0 0 var(--spacing-lg) 0;
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  :root {
    --instagram-border: #000000;
    --instagram-blue: #0066cc;
  }
}