/* BalanceBoard Theme Styles */
:root {
  /* BalanceBoard Color Palette */
  --primary-color: #4DB6AC;
  --primary-hover: #26A69A;
  --primary-dark: #1B3A52;
  --accent-color: #4DB6AC;
  --surface-color: #FFFFFF;
  --background-color: #F5F5F5;
  --surface-elevation-1: rgba(0, 0, 0, 0.05);
  --surface-elevation-2: rgba(0, 0, 0, 0.10);
  --surface-elevation-3: rgba(0, 0, 0, 0.15);
  --text-primary: #1B3A52;
  --text-secondary: #757575;
  --text-accent: #4DB6AC;
  --border-color: rgba(0, 0, 0, 0.12);
  --divider-color: rgba(0, 0, 0, 0.08);
  --hover-overlay: rgba(77, 182, 172, 0.08);
  --active-overlay: rgba(77, 182, 172, 0.16);
}

/* Global Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background-color: var(--background-color);
  color: var(--text-primary);
  line-height: 1.6;
  margin: 0;
  padding: 0;
}

/* BalanceBoard Navigation */
.balanceboard-nav {
  background: linear-gradient(135deg, var(--primary-dark) 0%, #2a5068 100%);
  box-shadow: 0 2px 8px var(--surface-elevation-2);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 3px solid var(--primary-color);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: white;
}

.nav-logo {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: white;
  padding: 4px;
  transition: transform 0.2s ease;
}

.nav-brand:hover .nav-logo {
  transform: scale(1.05);
}

.nav-brand-text {
  font-size: 1.5rem;
  font-weight: 300;
  letter-spacing: 0.5px;
}

.nav-brand-text .brand-balance {
  color: var(--primary-color);
  font-weight: 400;
}

.nav-brand-text .brand-board {
  color: white;
  font-weight: 600;
}

.nav-subtitle {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.85rem;
  margin-top: -4px;
}

/* Main Layout */
.app-layout {
  display: flex;
  max-width: 1400px;
  margin: 0 auto;
  gap: 24px;
  padding: 24px;
  min-height: calc(100vh - 80px);
}

/* Sidebar */
.sidebar {
  width: 280px;
  flex-shrink: 0;
  position: sticky;
  top: 88px;
  height: fit-content;
  max-height: calc(100vh - 104px);
  overflow-y: auto;
}

.sidebar-section {
  background: var(--surface-color);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 16px;
  box-shadow: 0 2px 4px var(--surface-elevation-1);
  border: 1px solid var(--border-color);
}

.sidebar-section h3 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  margin-bottom: 12px;
  font-weight: 600;
}

/* User Card */
.user-card {
  background: linear-gradient(135deg, var(--primary-dark) 0%, #2a5068 100%);
  border-radius: 12px;
  padding: 20px;
  color: white;
  text-align: center;
  border: 2px solid var(--primary-color);
}

.user-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--primary-color);
  margin: 0 auto 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  font-weight: 600;
  color: white;
}

.user-name {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.user-karma {
  font-size: 0.85rem;
  opacity: 0.8;
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 12px;
}

.karma-item {
  display: flex;
  align-items: center;
  gap: 4px;
}

.login-prompt {
  text-align: center;
}

.login-prompt p {
  margin-bottom: 16px;
  font-size: 0.95rem;
  opacity: 0.9;
}

.btn-login {
  display: block;
  width: 100%;
  padding: 10px 16px;
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  text-align: center;
}

.btn-login:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(77, 182, 172, 0.3);
}

.btn-signup {
  display: block;
  width: 100%;
  padding: 10px 16px;
  background: transparent;
  color: white;
  border: 2px solid var(--primary-color);
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  text-align: center;
  margin-top: 8px;
}

.btn-signup:hover {
  background: rgba(77, 182, 172, 0.1);
  border-color: var(--primary-hover);
}

/* Navigation Menu */
.nav-menu {
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-menu li {
  margin-bottom: 4px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--text-primary);
  text-decoration: none;
  transition: all 0.2s ease;
  font-size: 0.95rem;
}

.nav-item:hover {
  background: var(--hover-overlay);
  color: var(--primary-color);
}

.nav-item.active {
  background: var(--primary-color);
  color: white;
  font-weight: 600;
}

.nav-icon {
  font-size: 1.25rem;
  width: 20px;
  text-align: center;
}

/* Filter Tags */
.filter-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-tag {
  padding: 6px 12px;
  background: var(--background-color);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  font-size: 0.85rem;
  color: var(--text-primary);
  text-decoration: none;
  transition: all 0.2s ease;
  cursor: pointer;
}

.filter-tag:hover {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

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

/* Main Content Area */
.main-content {
  flex: 1;
  min-width: 0;
}

.container {
  max-width: 100%;
}

/* Platform Colors */
.platform-reddit { background: linear-gradient(135deg, #FF4500, #FF6B35); color: white; }
.platform-hackernews { background: linear-gradient(135deg, #FF6600, #FF8533); color: white; }
.platform-lobsters { background: linear-gradient(135deg, #8B5A3C, #A0695A); color: white; }

/* Page Header */
.container > header {
  background: white;
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: 0 2px 4px var(--surface-elevation-1);
  border-left: 4px solid var(--primary-color);
}

header h1 {
  font-size: 2rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

header .post-count {
  color: var(--text-secondary);
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

header .post-count::before {
  content: "•";
  color: var(--primary-color);
  font-size: 1.5rem;
  line-height: 1;
}

/* Post Cards */
.post-card {
  margin-bottom: 16px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card-surface {
  background: var(--surface-color);
  border-radius: 12px;
  box-shadow: 0 2px 4px var(--surface-elevation-1);
  padding: 24px;
  border: 1px solid var(--border-color);
  transition: all 0.2s ease;
}

.card-surface:hover {
  box-shadow: 0 4px 12px var(--surface-elevation-2);
  transform: translateY(-2px);
  background: var(--hover-overlay);
}

/* Card Header */
.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.header-meta {
  display: flex;
  gap: 12px;
  align-items: center;
}

.platform-badge {
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.vote-indicator {
  display: flex;
  align-items: center;
  gap: 4px;
}

.vote-score {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-accent);
}

/* Card Title */
.card-title {
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 12px;
}

.title-link {
  color: var(--text-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

/* Content Preview */
.card-content-preview {
  margin-bottom: 16px;
}

.content-text {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.5;
}

/* Card Footer */
.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.author-info {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

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

.engagement-info {
  font-size: 0.9rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Bookmark Button */
.bookmark-btn {
  background: none;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 6px 12px;
  display: flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.bookmark-btn:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
  background: rgba(77, 182, 172, 0.1);
}

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

.bookmark-btn.bookmarked .bookmark-icon {
  filter: none;
}

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

/* Tags */
.card-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tag-chip {
  background: var(--primary-color);
  color: white;
  padding: 4px 8px;
  border-radius: 16px;
  font-size: 0.8rem;
  font-weight: 500;
}

/* List View */
.post-list-item {
  margin-bottom: 8px;
}

.list-card {
  display: flex;
  align-items: center;
  background: var(--surface-color);
  border-radius: 8px;
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  transition: all 0.2s ease;
}

.list-card:hover {
  background: var(--hover-overlay);
  box-shadow: 0 2px 8px var(--surface-elevation-1);
}

.list-content {
  display: flex;
  align-items: center;
  flex: 1;
  gap: 16px;
}

.list-vote-section {
  min-width: 60px;
  text-align: center;
}

.vote-number {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-accent);
}

.list-meta {
  flex: 1;
}

.list-title {
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 4px;
}

.list-details {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.list-attribution {
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: flex;
  gap: 6px;
  align-items: center;
}

.separator {
  color: var(--divider-color);
}

.list-engagement {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* Detailed View */
.post-detail {
  background: var(--surface-color);
  border-radius: 16px;
  box-shadow: 0 4px 12px var(--surface-elevation-1);
  margin-bottom: 24px;
}

.detail-container {
  padding: 32px;
}

.detail-header {
  margin-bottom: 32px;
}

.header-meta-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.meta-row {
  display: flex;
  gap: 12px;
  align-items: center;
}

.detail-source {
  font-size: 1rem;
  color: var(--text-secondary);
}

.headline-section {
  margin-bottom: 24px;
}

.detail-title {
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.byline {
  display: flex;
  gap: 16px;
  font-size: 1rem;
  color: var(--text-secondary);
}

.author-link {
  font-weight: 500;
  color: var(--primary-color);
}

.stats-row {
  display: flex;
  gap: 32px;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-number {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  text-transform: lowercase;
}

.detail-tags {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.tag-pill {
  background: var(--primary-color);
  color: white;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 500;
}

/* Article Body */
.article-body {
  margin-bottom: 32px;
  padding: 24px 0;
  border-top: 1px solid var(--divider-color);
  border-bottom: 1px solid var(--divider-color);
}

.article-content {
  color: var(--text-secondary);
  font-size: 1.1rem;
  line-height: 1.8;
}

.article-content p {
  margin-bottom: 16px;
}

.article-content strong {
  font-weight: 600;
  color: var(--text-primary);
}

.article-content img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 2px 8px var(--surface-elevation-2);
  margin: 16px 0;
  display: block;
}

.article-content a {
  color: var(--primary-color);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

.article-content a:hover {
  border-bottom-color: var(--primary-color);
}

.article-content em {
  font-style: italic;
  color: var(--text-secondary);
}

/* Action Buttons */
.article-actions {
  margin-bottom: 32px;
  display: flex;
  gap: 16px;
}

.action-button {
  display: inline-flex;
  align-items: center;
  padding: 12px 24px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.2s ease;
}

.action-button.primary {
  background: var(--primary-color);
  color: white;
  border: none;
}

.action-button.primary:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(25, 118, 210, 0.3);
}

/* Comments Section */
.comments-section {
  border-top: 1px solid var(--divider-color);
  padding-top: 24px;
}

.comments-header {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 24px;
}

/* Comments */
.comment-card {
  margin-bottom: 16px;
  transition: margin-left 0.2s ease;
}

.comment-surface {
  background: var(--surface-color);
  border-radius: 8px;
  border: 1px solid var(--border-color);
  padding: 16px;
  box-shadow: 0 1px 3px var(--surface-elevation-1);
}

.comment-header {
  margin-bottom: 8px;
}

.comment-meta {
  display: flex;
  gap: 12px;
  align-items: center;
  font-size: 0.9rem;
}

.comment-author {
  font-weight: 500;
  color: var(--text-primary);
}

.comment-time {
  color: var(--text-secondary);
}

.comment-score {
  display: flex;
  align-items: center;
  gap: 4px;
}

.score-number {
  font-weight: 600;
  color: var(--text-secondary);
}

.comment-body {
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 8px;
}

.comment-text {
  margin-bottom: 12px;
}

.comment-text p {
  margin-bottom: 8px;
}

.comment-text img {
  max-width: 100%;
  height: auto;
  border-radius: 6px;
  box-shadow: 0 2px 6px var(--surface-elevation-1);
  margin: 12px 0;
  display: block;
}

.comment-text a {
  color: var(--primary-color);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

.comment-text a:hover {
  border-bottom-color: var(--primary-color);
}

.comment-text strong {
  font-weight: 600;
  color: var(--text-primary);
}

.comment-text em {
  font-style: italic;
}

.comment-replies {
  border-left: 3px solid var(--divider-color);
  margin-left: 16px;
  padding-left: 16px;
}

.comment-footer {
  font-size: 0.8rem;
}

.depth-indicator {
  color: var(--text-secondary);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .app-layout {
    flex-direction: column;
    padding: 16px;
  }

  .sidebar {
    width: 100%;
    position: static;
    max-height: none;
    order: -1;
  }

  .sidebar-section {
    margin-bottom: 12px;
  }

  .nav-container {
    padding: 12px 16px;
  }

  .nav-logo {
    width: 40px;
    height: 40px;
  }

  .nav-brand-text {
    font-size: 1.25rem;
  }
}

@media (max-width: 768px) {
  .app-layout {
    padding: 12px;
    gap: 16px;
  }

  .container {
    padding: 0;
  }

  .card-surface {
    padding: 16px;
  }

  .detail-container {
    padding: 16px;
  }

  .detail-title {
    font-size: 2rem;
  }

  .stats-row {
    flex-direction: row;
    gap: 24px;
  }

  .list-card {
    padding: 8px 12px;
  }

  .list-content {
    gap: 8px;
  }

  .nav-subtitle {
    display: none;
  }
}

/* Sidebar Responsive */
@media (max-width: 1024px) {
  .app-layout {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    position: static;
    max-height: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 16px;
  }

  .sidebar-section {
    margin-bottom: 0;
  }
}

@media (max-width: 640px) {
  .sidebar {
    grid-template-columns: 1fr;
  }
}