/* ==========================================================================
   chuhuigen - Modern Personal Blog Theme
   ========================================================================== */

:root {
  --font-main: "Plus Jakarta Sans", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-code: "JetBrains Mono", Consolas, Monaco, monospace;
  
  /* Color Palette - Light Mode */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-modal: #ffffff;
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  
  --border-color: rgba(226, 232, 240, 0.8);
  --border-hover: #cbd5e1;
  
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-gradient: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
  --accent-glow: rgba(59, 130, 246, 0.15);
  
  --card-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.05);
  --card-shadow-hover: 0 12px 30px -4px rgba(59, 130, 246, 0.12);
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Mode Variables */
body.theme-dark {
  --bg-primary: #0b0f19;
  --bg-secondary: #111827;
  --bg-tertiary: #1f2937;
  --bg-card: rgba(17, 24, 39, 0.75);
  --bg-modal: #111827;
  
  --text-primary: #f9fafb;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.18);
  
  --accent: #60a5fa;
  --accent-hover: #93c5fd;
  --accent-gradient: linear-gradient(135deg, #60a5fa 0%, #a78bfa 100%);
  --accent-glow: rgba(96, 165, 250, 0.2);
  
  --card-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.4);
  --card-shadow-hover: 0 12px 30px -4px rgba(96, 165, 250, 0.18);
}

/* Base Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.65;
  transition: background-color 0.3s ease, color 0.3s ease;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* Background Ambient Glows */
.glow-bg {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  z-index: -1;
  pointer-events: none;
  opacity: 0.5;
}

.glow-1 {
  width: 450px;
  height: 450px;
  top: -100px;
  left: 20%;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.35) 0%, rgba(139, 92, 246, 0.1) 70%, transparent 100%);
}

.glow-2 {
  width: 400px;
  height: 400px;
  top: 40%;
  right: -50px;
  background: radial-gradient(circle, rgba(168, 85, 247, 0.25) 0%, rgba(59, 130, 246, 0.08) 70%, transparent 100%);
}

/* Container */
.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Navigation Bar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.logo-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  background: var(--accent-gradient);
  color: #fff;
  border-radius: var(--radius-sm);
  font-weight: 800;
  font-size: 1.1rem;
  box-shadow: 0 2px 10px var(--accent-glow);
}

.logo .dot {
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.5rem 0.8rem;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.icon-btn {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

.icon-btn:hover {
  background: var(--border-hover);
  color: var(--text-primary);
  transform: translateY(-1px);
}

body.theme-dark .light-icon { display: block; }
body.theme-dark .dark-icon { display: none; }
body:not(.theme-dark) .light-icon { display: none; }
body:not(.theme-dark) .dark-icon { display: block; }

.mobile-only {
  display: none;
}

/* Hero / Profile Section */
.hero-section {
  padding: 4rem 0 3rem;
  border-bottom: 1px solid var(--border-color);
}

.hero-content {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}

.avatar-wrapper {
  position: relative;
  flex-shrink: 0;
}

.avatar-img {
  width: 120px;
  height: 120px;
  border-radius: var(--radius-lg);
  object-fit: cover;
  border: 3px solid var(--border-color);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  background: var(--bg-secondary);
}

.status-indicator {
  position: absolute;
  bottom: -4px;
  right: -4px;
  width: 22px;
  height: 22px;
  background: #10b981;
  border: 3px solid var(--bg-primary);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.85rem;
  background: var(--accent-glow);
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.hero-title {
  font-size: 2.35rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 0.75rem;
  line-height: 1.25;
}

.gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 650px;
  margin-bottom: 1.5rem;
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.social-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.15rem;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  text-decoration: none;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.social-btn:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--accent-glow);
}

.social-btn.primary {
  background: var(--accent-gradient);
  color: #fff;
  border: none;
}

.social-btn.primary:hover {
  opacity: 0.92;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.stat-card {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  text-align: center;
  transition: var(--transition);
}

.stat-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.stat-number {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 0.2rem;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Sections */
.section {
  padding: 4rem 0;
  border-bottom: 1px solid var(--border-color);
}

.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.section-title {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.35rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.section-title i {
  color: var(--accent);
}

.section-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Tag Filters */
.tag-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag-pill {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.tag-pill:hover {
  color: var(--text-primary);
  border-color: var(--accent);
}

.tag-pill.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 2px 8px var(--accent-glow);
}

/* Search Bar */
.search-bar-container {
  position: relative;
  margin-bottom: 2rem;
}

.search-bar-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 1rem;
}

.search-input {
  width: 100%;
  padding: 0.85rem 2.8rem 0.85rem 2.8rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 0.95rem;
  transition: var(--transition);
}

.search-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.search-clear {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1rem;
}

.search-clear:hover {
  color: var(--text-primary);
}

.hidden {
  display: none !important;
}

/* Posts Grid */
.posts-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.post-card {
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.post-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: var(--card-shadow-hover);
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.post-meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.post-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
  color: var(--text-primary);
  transition: color 0.2s;
  line-height: 1.4;
}

.post-card:hover .post-title {
  color: var(--accent);
}

.post-excerpt {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 1.2rem;
}

.post-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.post-tag {
  background: var(--bg-tertiary);
  color: var(--text-muted);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
}

.read-more {
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-muted);
}

.empty-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.4;
}

/* Projects Grid */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.project-card {
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.project-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: var(--card-shadow-hover);
}

.project-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.project-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--accent-glow);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.project-links {
  display: flex;
  gap: 0.75rem;
}

.project-links a {
  color: var(--text-muted);
  font-size: 1.15rem;
  transition: var(--transition);
}

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

.project-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.project-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.project-tech span {
  background: var(--bg-tertiary);
  color: var(--text-muted);
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
}

.view-all-link {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: var(--transition);
}

.view-all-link:hover {
  gap: 0.6rem;
}

/* About Section */
.about-card {
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.about-bio p {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 1rem;
  line-height: 1.7;
}

.about-bio strong {
  color: var(--text-primary);
}

.skills-section {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
}

.skills-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.skills-title i {
  color: var(--accent);
}

.skills-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.skill-tag {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

/* Full Article Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(6px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  animation: fadeIn 0.2s ease-out;
}

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

.modal-container {
  background: var(--bg-modal);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 820px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  padding: 2.5rem;
}

.modal-close-btn {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  font-size: 1rem;
}

.modal-close-btn:hover {
  color: var(--text-primary);
  background: var(--border-hover);
}

.article-header {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.article-header .post-title {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.article-body {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.article-body h2 {
  font-size: 1.45rem;
  color: var(--text-primary);
  margin: 2rem 0 1rem;
  font-weight: 700;
}

.article-body h3 {
  font-size: 1.2rem;
  color: var(--text-primary);
  margin: 1.5rem 0 0.8rem;
  font-weight: 600;
}

.article-body p {
  margin-bottom: 1.25rem;
}

.article-body ul, .article-body ol {
  margin: 1rem 0 1.5rem 1.5rem;
}

.article-body li {
  margin-bottom: 0.5rem;
}

.article-body blockquote {
  border-left: 4px solid var(--accent);
  background: var(--bg-tertiary);
  padding: 1rem 1.25rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 1.5rem 0;
  font-style: italic;
  color: var(--text-primary);
}

.article-body pre {
  background: #0d1117;
  color: #e6edf3;
  padding: 1.25rem;
  border-radius: var(--radius-md);
  font-family: var(--font-code);
  font-size: 0.9rem;
  overflow-x: auto;
  margin: 1.5rem 0;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.article-body code:not(pre code) {
  background: var(--bg-tertiary);
  color: var(--accent);
  font-family: var(--font-code);
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-size: 0.88em;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border-color);
  padding: 2.5rem 0;
  text-align: center;
  background: var(--bg-card);
}

.footer-content p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer-sub {
  margin-top: 0.5rem;
  font-size: 0.8rem !important;
  color: var(--text-muted) !important;
}

.footer a {
  color: var(--accent);
  text-decoration: none;
}

.footer a:hover {
  text-decoration: underline;
}

/* Responsive Media Queries */
@media (max-width: 768px) {
  .hero-content {
    flex-direction: column;
    text-align: center;
    gap: 1.5rem;
  }
  
  .avatar-img {
    width: 100px;
    height: 100px;
  }
  
  .hero-title {
    font-size: 1.85rem;
  }
  
  .social-links {
    justify-content: center;
  }
  
  .hero-stats {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }
  
  .nav-links {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--bg-modal);
    border-bottom: 1px solid var(--border-color);
    flex-direction: column;
    padding: 1.5rem;
    gap: 0.75rem;
  }
  
  .nav-links.show {
    display: flex;
  }
  
  .mobile-only {
    display: flex;
  }
  
  .modal-container {
    padding: 1.5rem;
  }
}

/* ==========================================================================
   Cloudflare D1 & R2 Enhancements: Likes, Comments, R2 Uploader, Toast
   ========================================================================== */

/* R2 Uploader Card */
.r2-uploader-card {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
}

.upload-dropzone {
  border: 2px dashed var(--border-hover);
  border-radius: var(--radius-lg);
  padding: 3rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  background: var(--bg-tertiary);
}

.upload-dropzone:hover, .upload-dropzone.dragover {
  border-color: var(--accent);
  background: var(--accent-glow);
}

.file-input-hidden {
  display: none;
}

.upload-icon {
  font-size: 3rem;
  color: var(--accent);
  margin-bottom: 1rem;
}

.upload-hint {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 0.4rem;
}

.upload-status {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 2rem;
  color: var(--accent);
  font-weight: 600;
}

.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid rgba(59, 130, 246, 0.2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.upload-result-box {
  margin-top: 2rem;
  display: flex;
  gap: 2rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  align-items: center;
  flex-wrap: wrap;
}

.result-preview {
  width: 140px;
  height: 140px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  flex-shrink: 0;
}

.result-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.result-details {
  flex-grow: 1;
  min-width: 260px;
}

.result-details h4 {
  font-size: 1.1rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.copy-input-group {
  display: flex;
  gap: 0.5rem;
}

.copy-btn {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 0 1.25rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.copy-btn:hover {
  background: var(--accent-hover);
}

/* Article Modal: Interaction (Likes & Comments) */
.article-interaction {
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.likes-container {
  display: flex;
  justify-content: center;
  margin-bottom: 2.5rem;
}

.like-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 2rem;
  background: var(--bg-tertiary);
  border: 2px solid var(--border-color);
  color: var(--text-primary);
  border-radius: var(--radius-full);
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
}

.like-btn i {
  color: #ef4444;
  font-size: 1.3rem;
  transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.like-btn:hover {
  border-color: #ef4444;
  background: rgba(239, 68, 68, 0.08);
  transform: scale(1.05);
}

.like-btn:active i {
  transform: scale(1.4);
}

.like-btn.liked {
  border-color: #ef4444;
  background: rgba(239, 68, 68, 0.15);
}

/* Comments Section */
.comments-section {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.comments-header {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.comments-header i {
  color: var(--accent);
}

.comment-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}

.form-row {
  display: flex;
  gap: 1rem;
}

.form-input {
  flex: 1;
  padding: 0.8rem 1rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 0.95rem;
  transition: var(--transition);
}

.form-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

textarea.form-input {
  min-height: 90px;
  resize: vertical;
}

.comment-submit-btn {
  align-self: flex-end;
  padding: 0.7rem 1.75rem;
  background: var(--accent-gradient);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.comment-submit-btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.comments-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.comment-item {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  animation: fadeIn 0.3s ease-out;
}

.comment-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.comment-author {
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.comment-author i {
  color: var(--accent);
}

.comment-date {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.comment-content {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 1rem 1.5rem;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(0,0,0,0.3);
  z-index: 2000;
  font-weight: 600;
  animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}