/* ============================================
   DESIGN TOKENS
   ============================================ */
:root {
  /* Colors - Dark Theme */
  --bg-primary: #050a0f;
  --bg-secondary: #0a1520;
  --bg-card: #0d1a28;
  --bg-card-hover: #122030;

  --accent: #00d4ff;
  --accent-dim: rgba(0, 212, 255, 0.15);
  --accent-glow: rgba(0, 212, 255, 0.4);
  --accent2: #7c3aed;
  --accent2-dim: rgba(124, 58, 237, 0.15);

  --text-primary: #e8f4fc;
  --text-secondary: #7a9bb5;
  --text-muted: #3d6075;

  --border: rgba(0, 212, 255, 0.12);
  --border-hover: rgba(0, 212, 255, 0.35);

  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 30px rgba(0, 212, 255, 0.15);

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Noto Sans SC', 'Hiragino Kaku Gothic ProN', 'Yu Gothic', 'Microsoft YaHei', sans-serif;
  --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', 'Source Code Pro', monospace;

  /* Sizes */
  --nav-height: 64px;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;

  /* Transitions */
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme */
[data-theme="light"] {
  --bg-primary: #f0f4f8;
  --bg-secondary: #e2eaf2;
  --bg-card: #ffffff;
  --bg-card-hover: #f7fafc;

  --accent: #0077aa;
  --accent-dim: rgba(0, 119, 170, 0.1);
  --accent-glow: rgba(0, 119, 170, 0.25);
  --accent2: #6d28d9;
  --accent2-dim: rgba(109, 40, 217, 0.1);

  --text-primary: #0f1923;
  --text-secondary: #4a6280;
  --text-muted: #8aa0b8;

  --border: rgba(0, 119, 170, 0.15);
  --border-hover: rgba(0, 119, 170, 0.4);

  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-glow: 0 0 24px rgba(0, 119, 170, 0.1);
}

/* ============================================
   RESET & BASE
   ============================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background var(--transition), color var(--transition);
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
ul { list-style: none; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--accent-dim); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ============================================
   CANVAS PARTICLES
   ============================================ */
#particles {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.6;
}

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-height);
  background: rgba(5, 10, 15, 0.75);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition), border-color var(--transition);
}

[data-theme="light"] .nav {
  background: rgba(240, 244, 248, 0.85);
}

.nav.scrolled {
  background: rgba(5, 10, 15, 0.95);
  border-color: var(--border-hover);
}

[data-theme="light"] .nav.scrolled {
  background: rgba(240, 244, 248, 0.97);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--accent);
  letter-spacing: 0.05em;
  flex-shrink: 0;
}

.logo-hex {
  font-size: 1.4rem;
  filter: drop-shadow(0 0 8px var(--accent-glow));
  animation: hexRotate 8s linear infinite;
}

@keyframes hexRotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.nav-links {
  display: flex;
  gap: 4px;
  flex: 1;
}

.nav-link {
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: color var(--transition), background var(--transition);
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: var(--accent);
  background: var(--accent-dim);
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

/* Language Switcher */
.lang-switcher {
  display: flex;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px;
  gap: 2px;
}

.lang-btn {
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: all var(--transition);
  letter-spacing: 0.05em;
}

.lang-btn:hover { color: var(--text-secondary); }

.lang-btn.active {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 0 12px var(--accent-glow);
}

/* Theme Toggle */
.theme-toggle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  color: var(--accent);
  font-size: 1.1rem;
  transition: all var(--transition);
}

.theme-toggle:hover {
  border-color: var(--accent);
  box-shadow: 0 0 12px var(--accent-glow);
}

/* Mobile Menu Button */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition);
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  flex-direction: column;
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  background: var(--bg-primary);
  gap: 4px;
}

.mobile-menu.open { display: flex; }

.mobile-link {
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.95rem;
  transition: all var(--transition);
}

.mobile-link:hover { color: var(--accent); background: var(--accent-dim); }

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--nav-height) 24px 80px;
  overflow: hidden;
}

/* Animated grid */
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, black 30%, transparent 100%);
  animation: gridScroll 20s linear infinite;
}

@keyframes gridScroll {
  from { transform: translateY(0); }
  to { transform: translateY(60px); }
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--accent-dim);
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--accent);
  margin-bottom: 32px;
  letter-spacing: 0.05em;
}

.badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.title-line {
  font-size: 0.5em;
  color: var(--text-secondary);
  font-weight: 400;
  letter-spacing: 0.1em;
}

.title-name {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 30px var(--accent-glow));
}

/* Glitch effect */
.glitch {
  position: relative;
}

.glitch::before, .glitch::after {
  content: attr(data-text);
  position: absolute;
  top: 0; left: 0;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.glitch::before {
  animation: glitch1 4s infinite;
  clip-path: polygon(0 20%, 100% 20%, 100% 40%, 0 40%);
}

.glitch::after {
  animation: glitch2 4s infinite;
  clip-path: polygon(0 60%, 100% 60%, 100% 80%, 0 80%);
}

@keyframes glitch1 {
  0%, 90%, 100% { transform: translate(0); opacity: 0; }
  92% { transform: translate(-3px, 1px); opacity: 0.7; }
  94% { transform: translate(3px, -1px); opacity: 0.7; }
  96% { transform: translate(0); opacity: 0; }
}

@keyframes glitch2 {
  0%, 93%, 100% { transform: translate(0); opacity: 0; }
  95% { transform: translate(3px, 2px); opacity: 0.5; }
  97% { transform: translate(-3px, -2px); opacity: 0.5; }
  99% { transform: translate(0); opacity: 0; }
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--text-secondary);
  margin-bottom: 40px;
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.7rem;
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: scrollBounce 2s ease-in-out infinite;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, transparent, var(--accent));
}

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  transition: all var(--transition);
  cursor: pointer;
  border: 1px solid transparent;
  position: relative;
  overflow: hidden;
}

.btn svg { width: 16px; height: 16px; transition: transform var(--transition); }
.btn:hover svg { transform: translateX(3px); }

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
  box-shadow: 0 6px 30px var(--accent-glow), 0 0 0 1px var(--accent);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border);
}

.btn-ghost:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-dim);
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
}

.btn-outline:hover {
  background: var(--accent-dim);
  box-shadow: 0 0 16px var(--accent-glow);
}

/* ============================================
   SECTIONS
   ============================================ */
.section {
  position: relative;
  z-index: 1;
  padding: 100px 0;
}

.section-dark {
  background: var(--bg-secondary);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 12px;
  padding: 4px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--accent-dim);
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.2;
}

.section-footer {
  text-align: center;
  margin-top: 48px;
}

/* ============================================
   POSTS GRID
   ============================================ */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.post-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  overflow: hidden;
}

.post-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  transform: scaleX(0);
  transition: transform var(--transition);
}

.post-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card), var(--shadow-glow);
}

.post-card:hover::before { transform: scaleX(1); }

.post-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.post-tag {
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--accent2-dim);
  color: var(--accent2);
  border: 1px solid rgba(124, 58, 237, 0.2);
}

[data-theme="light"] .post-tag {
  background: rgba(109, 40, 217, 0.08);
}

.post-title {
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text-primary);
}

.post-excerpt {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 8px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.post-read {
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ============================================
   GALLERY GRID
   ============================================ */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}

.gallery-item {
  aspect-ratio: 1;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border);
  position: relative;
  cursor: pointer;
  transition: all var(--transition);
}

.gallery-item:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-card);
  border-color: var(--border-hover);
}

.gallery-item img, .gallery-item video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.gallery-item:hover img, .gallery-item:hover video {
  transform: scale(1.05);
}

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(5,10,15,0.8) 0%, transparent 60%);
  display: flex;
  align-items: flex-end;
  padding: 16px;
  opacity: 0;
  transition: opacity var(--transition);
}

.gallery-item:hover .gallery-overlay { opacity: 1; }

.gallery-caption {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.9);
}

.gallery-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--text-muted);
  font-size: 0.8rem;
  font-family: var(--font-mono);
}

.gallery-placeholder-icon {
  font-size: 2rem;
  opacity: 0.4;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  position: relative;
  z-index: 1;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 40px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--accent);
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color var(--transition);
}

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

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* ============================================
   PAGE HEADER (for inner pages)
   ============================================ */
.page-header {
  padding: calc(var(--nav-height) + 60px) 24px 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}

.page-header-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 100% at 50% 0%, var(--accent-dim) 0%, transparent 70%);
  pointer-events: none;
}

.page-header-content { position: relative; z-index: 1; }

.page-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.page-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  margin-bottom: 12px;
}

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

/* ============================================
   BLOG PAGE
   ============================================ */
.blog-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
  gap: 16px;
  flex-wrap: wrap;
}

.search-box {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 16px;
  flex: 1;
  max-width: 400px;
  transition: border-color var(--transition);
}

.search-box:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.search-box input {
  background: none;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  width: 100%;
}

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

.search-icon { color: var(--text-muted); font-size: 0.9rem; }

.tag-filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tag-filter {
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.8rem;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}

.tag-filter:hover, .tag-filter.active {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

/* Admin Button */
.admin-fab {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 50;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px var(--accent-glow);
  transition: all var(--transition);
  cursor: pointer;
  border: none;
}

.admin-fab:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 30px var(--accent-glow);
}

/* ============================================
   BLOG POST DETAIL
   ============================================ */
.post-detail {
  max-width: 760px;
  margin: 0 auto;
  padding: 60px 24px 100px;
}

.post-detail-header {
  margin-bottom: 48px;
}

.post-detail-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  flex-wrap: wrap;
}

.post-detail-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
}

.post-detail-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.post-detail-divider {
  height: 1px;
  background: var(--border);
  margin: 32px 0;
}

/* Prose styles */
.prose {
  color: var(--text-primary);
  line-height: 1.8;
  font-size: 1rem;
}

.prose h1, .prose h2, .prose h3, .prose h4 {
  font-weight: 700;
  line-height: 1.3;
  margin: 2em 0 0.75em;
}

.prose h2 { font-size: 1.5rem; color: var(--accent); }
.prose h3 { font-size: 1.2rem; }

.prose p { margin: 0 0 1.25em; }

.prose a {
  color: var(--accent);
  border-bottom: 1px solid var(--accent-dim);
  transition: border-color var(--transition);
}

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

.prose code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--bg-card);
  color: var(--accent);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--border);
}

.prose pre {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  overflow-x: auto;
  margin: 1.5em 0;
}

.prose pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.875rem;
  color: var(--text-primary);
}

.prose blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 20px;
  color: var(--text-secondary);
  font-style: italic;
  margin: 1.5em 0;
}

.prose ul, .prose ol {
  padding-left: 1.5em;
  margin: 1em 0;
}

.prose li { margin: 0.4em 0; }
.prose ul li { list-style: disc; }
.prose ol li { list-style: decimal; }

.prose img {
  border-radius: var(--radius);
  margin: 1.5em 0;
  max-width: 100%;
  border: 1px solid var(--border);
}

.prose hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2em 0;
}

/* Share Buttons */
.share-section {
  margin-top: 60px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.share-label {
  font-size: 0.85rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.share-buttons {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.share-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 500;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}

.share-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.share-btn.twitter:hover { border-color: #1da1f2; color: #1da1f2; background: rgba(29,161,242,0.08); }
.share-btn.weibo:hover { border-color: #e6162d; color: #e6162d; background: rgba(230,22,45,0.08); }
.share-btn.wechat:hover { border-color: #07c160; color: #07c160; background: rgba(7,193,96,0.08); }
.share-btn.linkedin:hover { border-color: #0077b5; color: #0077b5; background: rgba(0,119,181,0.08); }
.share-btn.copy:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-dim); }

/* WeChat QR Popup */
.wechat-popup {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0,0,0,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(8px);
}

.wechat-popup.hidden { display: none; }

.wechat-popup-inner {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  max-width: 300px;
}

.wechat-qr {
  width: 200px;
  height: 200px;
  margin: 0 auto 16px;
  background: #fff;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  color: #333;
  padding: 8px;
}

/* ============================================
   ABOUT PAGE
   ============================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.about-avatar {
  position: relative;
  width: 280px;
}

.avatar-frame {
  position: relative;
  width: 220px;
  height: 220px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 2px solid var(--border);
  background: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
}

.avatar-glow {
  position: absolute;
  inset: -2px;
  border-radius: calc(var(--radius-lg) + 2px);
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  z-index: -1;
  opacity: 0.5;
  filter: blur(12px);
}

.about-info { padding-top: 8px; }

.about-name {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.about-tagline {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 0.9rem;
  margin-bottom: 20px;
  letter-spacing: 0.05em;
}

.about-bio {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
}

.about-stats {
  display: flex;
  gap: 32px;
  margin-bottom: 32px;
}

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

.stat-num {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--accent);
  font-family: var(--font-mono);
  display: block;
  line-height: 1;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 4px;
}

.social-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.social-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: 0.85rem;
  transition: all var(--transition);
}

.social-link:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

/* Skills */
.skills-section { margin-top: 80px; }

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  margin-top: 32px;
}

.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  transition: all var(--transition);
}

.skill-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.skill-icon { font-size: 1.8rem; margin-bottom: 8px; }
.skill-name { font-size: 0.85rem; font-weight: 600; margin-bottom: 6px; }

.skill-bar {
  height: 3px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}

.skill-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  border-radius: 2px;
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 1s cubic-bezier(0.4, 0, 0.2, 1);
}

.skill-card.animate .skill-fill { transform: scaleX(1); }

/* ============================================
   GALLERY PAGE
   ============================================ */
.gallery-controls {
  display: flex;
  gap: 12px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.gallery-filter {
  padding: 7px 18px;
  border-radius: 999px;
  font-size: 0.85rem;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}

.gallery-filter:hover, .gallery-filter.active {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

.gallery-main {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0,0,0,0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(8px);
  padding: 24px;
}

.lightbox.hidden { display: none; }

.lightbox-content {
  position: relative;
  max-width: 90vw;
  max-height: 85vh;
}

.lightbox-content img, .lightbox-content video {
  max-width: 100%;
  max-height: 85vh;
  border-radius: var(--radius);
  object-fit: contain;
}

.lightbox-close {
  position: fixed;
  top: 20px;
  right: 20px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition);
}

.lightbox-close:hover {
  background: var(--accent);
  color: #fff;
}

/* ============================================
   ADMIN / EDITOR
   ============================================ */
.admin-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: calc(100vh - var(--nav-height));
  margin-top: var(--nav-height);
}

.admin-sidebar {
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  padding: 24px 16px;
  position: sticky;
  top: var(--nav-height);
  height: calc(100vh - var(--nav-height));
  overflow-y: auto;
}

.admin-nav-title {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0 12px;
  margin-bottom: 8px;
  margin-top: 20px;
}

.admin-nav-title:first-child { margin-top: 0; }

.admin-nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

.admin-nav-link:hover, .admin-nav-link.active {
  color: var(--accent);
  background: var(--accent-dim);
}

.admin-main {
  padding: 32px;
  overflow-y: auto;
}

.admin-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 24px;
}

/* Editor */
.editor-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 800px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--text-secondary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.form-input, .form-select, .form-textarea {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.form-select option { background: var(--bg-card); }

.form-textarea {
  resize: vertical;
  min-height: 120px;
  font-family: var(--font-sans);
}

.editor-area {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.editor-toolbar {
  display: flex;
  gap: 4px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-secondary);
  flex-wrap: wrap;
}

.toolbar-btn {
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--text-secondary);
  background: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
}

.toolbar-btn:hover {
  border-color: var(--border);
  color: var(--accent);
  background: var(--accent-dim);
}

.editor-content {
  min-height: 400px;
  padding: 20px;
  outline: none;
  line-height: 1.8;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.editor-content:empty::before {
  content: attr(data-placeholder);
  color: var(--text-muted);
  pointer-events: none;
}

.editor-actions {
  display: flex;
  gap: 12px;
  padding: 12px;
  border-top: 1px solid var(--border);
  background: var(--bg-secondary);
}

/* Posts List in Admin */
.admin-posts-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.admin-post-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  gap: 16px;
  transition: border-color var(--transition);
}

.admin-post-item:hover { border-color: var(--border-hover); }

.admin-post-info { flex: 1; }

.admin-post-title { font-weight: 600; margin-bottom: 4px; }

.admin-post-meta {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.admin-post-actions {
  display: flex;
  gap: 8px;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
}

.btn-danger {
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #ef4444;
  background: rgba(239, 68, 68, 0.08);
  transition: all var(--transition);
}

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

/* Toast */
.toast {
  position: fixed;
  bottom: 80px;
  right: 32px;
  z-index: 300;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 20px;
  font-size: 0.875rem;
  color: var(--text-primary);
  box-shadow: var(--shadow-card);
  transform: translateY(20px);
  opacity: 0;
  transition: all var(--transition);
  pointer-events: none;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast.success { border-color: rgba(16, 185, 129, 0.4); color: #10b981; }
.toast.error { border-color: rgba(239, 68, 68, 0.4); color: #ef4444; }

/* ============================================
   ANIMATIONS
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .menu-toggle { display: flex; }

  .hero-title { font-size: 2.2rem; }

  .posts-grid { grid-template-columns: 1fr; }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .about-avatar { margin: 0 auto; }

  .admin-layout { grid-template-columns: 1fr; }
  .admin-sidebar { display: none; }

  .form-row { grid-template-columns: 1fr; }

  .footer-inner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero-actions { flex-direction: column; align-items: center; }
  .lang-switcher .lang-btn { padding: 4px 8px; }
}

/* ============================================
   UTILITY
   ============================================ */
.hidden { display: none !important; }
.text-accent { color: var(--accent); }
.mono { font-family: var(--font-mono); }
.text-muted { color: var(--text-muted); }

/* Status badge */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.7rem;
  font-family: var(--font-mono);
}

.status-published {
  background: rgba(16,185,129,0.12);
  color: #10b981;
  border: 1px solid rgba(16,185,129,0.25);
}

.status-draft {
  background: rgba(234,179,8,0.12);
  color: #eab308;
  border: 1px solid rgba(234,179,8,0.25);
}

/* Scan line effect (decorative) */
@keyframes scanline {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(100vh); }
}