/* ============================================
   攵傑 Blog - Design System
   Award-winning dark theme with gold accents
   ============================================ */

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

:root {
  /* Colors - Dark Sophisticated Palette */
  --bg-primary: #0a0a0c;
  --bg-secondary: #111114;
  --bg-tertiary: #18181c;
  --bg-elevated: #1e1e24;
  --bg-glass: rgba(30, 30, 36, 0.6);

  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.15);

  --text-primary: #f5f5f7;
  --text-secondary: #a0a0a8;
  --text-tertiary: #6b6b73;
  --text-muted: #4a4a52;

  /* Accent Colors */
  --accent-gold: #e8c468;
  --accent-gold-bright: #f5d176;
  --accent-gold-dim: rgba(232, 196, 104, 0.15);
  --accent-teal: #4ecdc4;
  --accent-coral: #ff6b6b;
  --accent-purple: #a78bfa;

  /* Category Colors */
  --cat-photo: #f59e0b;
  --cat-vinyl: #ec4899;
  --cat-3dprint: #06b6d4;
  --cat-ai: #8b5cf6;
  --cat-opensource: #10b981;

  /* Gradients */
  --gradient-gold: linear-gradient(135deg, #e8c468 0%, #f5d176 50%, #e8c468 100%);
  --gradient-hero: linear-gradient(180deg, rgba(232, 196, 104, 0.08) 0%, transparent 100%);
  --gradient-card: linear-gradient(145deg, rgba(30, 30, 36, 0.9) 0%, rgba(24, 24, 28, 0.9) 100%);
  --gradient-text: linear-gradient(135deg, #f5f5f7 0%, #a0a0a8 100%);

  /* Typography */
  --font-display: 'Syne', 'Space Grotesk', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --font-serif: 'Playfair Display', Georgia, serif;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2.5rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --transition-fast: 0.2s var(--ease-out);
  --transition-base: 0.4s var(--ease-out);
  --transition-slow: 0.6s var(--ease-out);

  /* Layout */
  --max-width: 1280px;
  --content-width: 720px;
  --nav-height: 72px;
}

/* ---------- HTML & Body ---------- */
html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
}

/* Noise texture overlay */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

/* Ambient glow */
body::after {
  content: '';
  position: fixed;
  top: -20%;
  right: -10%;
  width: 60vw;
  height: 60vw;
  background: radial-gradient(circle, rgba(232, 196, 104, 0.06) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
  filter: blur(80px);
}

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 6vw, 5rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2vw, 1.5rem); }

p {
  margin-bottom: var(--space-md);
  color: var(--text-secondary);
}

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

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

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--bg-tertiary);
  padding: 0.15em 0.4em;
  border-radius: var(--radius-sm);
  color: var(--accent-gold);
}

pre {
  font-family: var(--font-mono);
  background: var(--bg-tertiary);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  overflow-x: auto;
  border: 1px solid var(--border-color);
  margin: var(--space-lg) 0;
}

pre code {
  background: none;
  padding: 0;
  color: var(--text-primary);
}

/* ---------- Layout Utilities ---------- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
  position: relative;
  z-index: 2;
}

.container-narrow {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
  position: relative;
  z-index: 2;
}

.section {
  padding: var(--space-3xl) 0;
  position: relative;
}

/* ---------- Custom Cursor ---------- */
.cursor-dot,
.cursor-outline {
  pointer-events: none;
  position: fixed;
  top: 0;
  left: 0;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  z-index: 9999;
  transition: opacity 0.3s, transform 0.15s var(--ease-out);
}

.cursor-dot {
  width: 6px;
  height: 6px;
  background: var(--accent-gold);
}

.cursor-outline {
  width: 36px;
  height: 36px;
  border: 1.5px solid var(--accent-gold);
  opacity: 0.5;
  transition: width 0.3s var(--ease-out), height 0.3s var(--ease-out),
              opacity 0.3s, border-color 0.3s, transform 0.1s var(--ease-out);
}

.cursor-outline.hover {
  width: 60px;
  height: 60px;
  background: var(--accent-gold-dim);
  border-color: var(--accent-gold-bright);
}

@media (max-width: 768px) {
  .cursor-dot, .cursor-outline { display: none; }
}

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  display: flex;
  align-items: center;
  transition: background var(--transition-base), backdrop-filter var(--transition-base),
              border-color var(--transition-base);
  border-bottom: 1px solid transparent;
}

.nav.scrolled {
  background: rgba(10, 10, 12, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom-color: var(--border-color);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav-logo .logo-mark {
  width: 32px;
  height: 32px;
  background: var(--gradient-gold);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--bg-primary);
  font-weight: 900;
  transition: transform var(--transition-base);
}

.nav-logo:hover .logo-mark {
  transform: rotate(-8deg) scale(1.05);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--accent-gold);
  transition: width var(--transition-base);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-user {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xs) var(--space-md) var(--space-xs) var(--space-xs);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.nav-user:hover {
  border-color: var(--border-hover);
  background: var(--bg-elevated);
}

.nav-user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--gradient-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--bg-primary);
  font-size: 0.85rem;
}

.nav-user-name {
  font-size: 0.9rem;
  color: var(--text-primary);
  font-weight: 500;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.7rem 1.5rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent-gold);
  color: var(--bg-primary);
}

.btn-primary:hover {
  background: var(--accent-gold-bright);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(232, 196, 104, 0.3);
  color: var(--bg-primary);
}

.btn-ghost {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

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

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: 50%;
}

/* Magnetic button effect */
.btn-magnetic {
  transition: transform 0.2s var(--ease-out);
}

/* ---------- Hero Section ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: var(--space-3xl) 0;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
  pointer-events: none;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero-bg-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.4;
  animation: float 20s ease-in-out infinite;
}

.hero-bg-orb.orb-1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(232, 196, 104, 0.3), transparent);
  top: 10%;
  right: -5%;
}

.hero-bg-orb.orb-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(78, 205, 196, 0.2), transparent);
  bottom: 5%;
  left: -5%;
  animation-delay: -10s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -30px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.4rem 1rem;
  background: var(--bg-glass);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
  font-family: var(--font-mono);
}

.hero-eyebrow .pulse-dot {
  width: 8px;
  height: 8px;
  background: #10b981;
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
  50% { opacity: 0.7; box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
}

.hero-title {
  font-size: clamp(3rem, 8vw, 6.5rem);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.04em;
  margin-bottom: var(--space-xl);
}

.hero-title .line {
  display: block;
  overflow: hidden;
}

.hero-title .line-inner {
  display: inline-block;
  transform: translateY(100%);
  animation: revealUp 1s var(--ease-out) forwards;
}

.hero-title .line:nth-child(2) .line-inner { animation-delay: 0.15s; }
.hero-title .line:nth-child(3) .line-inner { animation-delay: 0.3s; }

@keyframes revealUp {
  to { transform: translateY(0); }
}

.hero-title .accent {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-style: italic;
  font-family: var(--font-serif);
  font-weight: 400;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: var(--space-2xl);
  line-height: 1.6;
  opacity: 0;
  animation: fadeIn 1s var(--ease-out) 0.6s forwards;
}

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

.hero-actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeIn 1s var(--ease-out) 0.8s forwards;
}

.hero-interests {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-2xl);
  opacity: 0;
  animation: fadeIn 1s var(--ease-out) 1s forwards;
}

.interest-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.5rem 1rem;
  background: var(--bg-glass);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.interest-tag:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
  transform: translateY(-2px);
}

.interest-tag .tag-icon {
  font-size: 1rem;
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: var(--text-tertiary);
  font-size: 0.8rem;
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0;
  animation: fadeIn 1s var(--ease-out) 1.5s forwards;
}

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

.scroll-indicator .scroll-line::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 50%;
  background: var(--accent-gold);
  animation: scrollDown 2s ease-in-out infinite;
}

@keyframes scrollDown {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(200%); }
}

/* ---------- Section Headers ---------- */
.section-header {
  margin-bottom: var(--space-2xl);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-xl);
  flex-wrap: wrap;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-gold);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.section-label::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--accent-gold);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
}

.section-title .accent {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  color: var(--accent-gold);
}

.section-description {
  color: var(--text-secondary);
  max-width: 500px;
  font-size: 1.05rem;
}

/* ---------- Category Filter ---------- */
.category-filter {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-2xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--border-color);
}

.category-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.5rem 1.1rem;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: var(--font-body);
  font-weight: 500;
}

.category-chip:hover {
  border-color: var(--border-hover);
  color: var(--text-primary);
}

.category-chip.active {
  background: var(--text-primary);
  color: var(--bg-primary);
  border-color: var(--text-primary);
}

.category-chip .chip-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

/* ---------- Post Cards ---------- */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--space-xl);
}

.post-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
  cursor: pointer;
  position: relative;
  display: flex;
  flex-direction: column;
}

.post-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.post-card-image {
  width: 100%;
  height: 220px;
  overflow: hidden;
  position: relative;
  background: var(--bg-tertiary);
}

.post-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.post-card:hover .post-card-image img {
  transform: scale(1.08);
}

.post-card-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(10, 10, 12, 0.8) 100%);
  pointer-events: none;
}

.post-card-category {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  z-index: 2;
  padding: 0.3rem 0.8rem;
  background: rgba(10, 10, 12, 0.7);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.post-card-body {
  padding: var(--space-lg);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.post-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.8rem;
  color: var(--text-tertiary);
  margin-bottom: var(--space-md);
  font-family: var(--font-mono);
}

.post-card-meta .meta-dot {
  width: 3px;
  height: 3px;
  background: var(--text-tertiary);
  border-radius: 50%;
}

.post-card-title {
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
  transition: color var(--transition-fast);
}

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

.post-card-excerpt {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

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

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

.post-card-author-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--gradient-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--bg-primary);
}

.post-card-author-name {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.post-card-stats {
  display: flex;
  gap: var(--space-md);
  font-size: 0.8rem;
  color: var(--text-tertiary);
}

.post-card-stat {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

/* Featured post card - larger */
.post-card.featured {
  grid-column: span 2;
}

.post-card.featured .post-card-image {
  height: 320px;
}

.post-card.featured .post-card-title {
  font-size: 1.75rem;
}

@media (max-width: 768px) {
  .post-card.featured {
    grid-column: span 1;
  }
}

/* ---------- Post Detail Page ---------- */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--gradient-gold);
  z-index: 1001;
  width: 0%;
  transition: width 0.1s linear;
}

.post-hero {
  padding: calc(var(--nav-height) + var(--space-3xl)) 0 var(--space-2xl);
  position: relative;
}

.post-hero-category {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.4rem 1rem;
  background: var(--accent-gold-dim);
  border: 1px solid rgba(232, 196, 104, 0.3);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-gold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-lg);
}

.post-hero-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-lg);
  max-width: 900px;
}

.post-hero-meta {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
  color: var(--text-tertiary);
  font-size: 0.95rem;
}

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

.post-hero-author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gradient-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--bg-primary);
}

.post-hero-cover {
  width: 100%;
  height: clamp(300px, 50vh, 500px);
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin: var(--space-2xl) 0;
  position: relative;
}

.post-hero-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.article-content h2 {
  font-size: 1.75rem;
  margin: var(--space-2xl) 0 var(--space-md);
  color: var(--text-primary);
}

.article-content h3 {
  font-size: 1.35rem;
  margin: var(--space-xl) 0 var(--space-sm);
  color: var(--text-primary);
}

.article-content p {
  margin-bottom: var(--space-lg);
  color: var(--text-secondary);
}

.article-content ul,
.article-content ol {
  margin: var(--space-md) 0 var(--space-lg);
  padding-left: var(--space-xl);
  color: var(--text-secondary);
}

.article-content li {
  margin-bottom: var(--space-sm);
}

.article-content blockquote {
  border-left: 3px solid var(--accent-gold);
  padding: var(--space-sm) 0 var(--space-sm) var(--space-lg);
  margin: var(--space-lg) 0;
  font-style: italic;
  color: var(--text-primary);
  font-family: var(--font-serif);
  font-size: 1.2rem;
}

.article-content img {
  width: 100%;
  border-radius: var(--radius-md);
  margin: var(--space-lg) 0;
}

.article-content a {
  color: var(--accent-gold);
  text-decoration: underline;
  text-decoration-color: rgba(232, 196, 104, 0.3);
  text-underline-offset: 3px;
  transition: text-decoration-color var(--transition-fast);
}

.article-content a:hover {
  text-decoration-color: var(--accent-gold);
}

/* ---------- Engagement Bar ---------- */
.engagement-bar {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg) 0;
  margin: var(--space-2xl) 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.engagement-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.6rem 1.2rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
}

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

.engagement-btn.liked {
  background: rgba(255, 107, 107, 0.1);
  border-color: rgba(255, 107, 107, 0.3);
  color: var(--accent-coral);
}

.engagement-btn.liked svg {
  fill: var(--accent-coral);
}

.engagement-btn svg {
  width: 18px;
  height: 18px;
  transition: transform var(--transition-fast);
}

.engagement-btn:hover svg {
  transform: scale(1.15);
}

/* ---------- Comments Section ---------- */
.comments-section {
  margin-top: var(--space-2xl);
}

.comments-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-xl);
}

.comments-title {
  font-size: 1.5rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.comments-count {
  font-size: 0.9rem;
  color: var(--text-tertiary);
  font-family: var(--font-mono);
  padding: 0.2rem 0.6rem;
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
}

.comment-form {
  margin-bottom: var(--space-2xl);
}

.comment-form textarea {
  width: 100%;
  min-height: 120px;
  padding: var(--space-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  resize: vertical;
  transition: border-color var(--transition-fast);
}

.comment-form textarea:focus {
  outline: none;
  border-color: var(--accent-gold);
}

.comment-form-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

.comment-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.comment-item {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast);
}

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

.comment-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gradient-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--bg-primary);
  flex-shrink: 0;
  font-size: 0.9rem;
}

.comment-body {
  flex: 1;
}

.comment-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-xs);
}

.comment-author {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.comment-time {
  font-size: 0.8rem;
  color: var(--text-tertiary);
  font-family: var(--font-mono);
}

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

.comment-actions {
  display: flex;
  gap: var(--space-md);
}

.comment-action {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.85rem;
  color: var(--text-tertiary);
  cursor: pointer;
  transition: color var(--transition-fast);
  background: none;
  border: none;
  font-family: var(--font-body);
  padding: 0;
}

.comment-action:hover {
  color: var(--text-primary);
}

.comment-action.liked {
  color: var(--accent-coral);
}

/* ---------- Auth Pages ---------- */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-2xl) var(--space-xl);
  position: relative;
}

.auth-card {
  width: 100%;
  max-width: 440px;
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  position: relative;
  z-index: 2;
  backdrop-filter: blur(20px);
}

.auth-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.auth-header h1 {
  font-size: 2rem;
  margin-bottom: var(--space-sm);
}

.auth-header p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.auth-tabs {
  display: flex;
  gap: var(--space-xs);
  padding: var(--space-xs);
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-xl);
}

.auth-tab {
  flex: 1;
  padding: 0.6rem;
  background: transparent;
  border: none;
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  cursor: pointer;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}

.auth-tab.active {
  background: var(--text-primary);
  color: var(--bg-primary);
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
  font-weight: 500;
}

.form-input {
  width: 100%;
  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-body);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

.form-input:focus {
  outline: none;
  border-color: var(--accent-gold);
  background: var(--bg-elevated);
}

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

.form-textarea {
  min-height: 100px;
  resize: vertical;
}

.form-error {
  color: var(--accent-coral);
  font-size: 0.85rem;
  margin-top: var(--space-xs);
  min-height: 1.2em;
}

.auth-footer {
  text-align: center;
  margin-top: var(--space-lg);
  font-size: 0.9rem;
  color: var(--text-tertiary);
}

.auth-footer a {
  color: var(--accent-gold);
}

/* ---------- Editor Page ---------- */
.editor-page {
  padding: calc(var(--nav-height) + var(--space-2xl)) 0 var(--space-3xl);
}

.editor-header {
  margin-bottom: var(--space-2xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.editor-title {
  font-size: 2rem;
  font-weight: 700;
}

.editor-form {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: var(--space-xl);
  align-items: start;
}

.editor-main {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.editor-title-input {
  width: 100%;
  padding: var(--space-md) 0;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.editor-title-input:focus {
  outline: none;
  border-bottom-color: var(--accent-gold);
}

.editor-content-input {
  width: 100%;
  min-height: 500px;
  padding: var(--space-md);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  line-height: 1.7;
  resize: vertical;
}

.editor-content-input:focus {
  outline: none;
  border-color: var(--accent-gold);
}

.editor-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  position: sticky;
  top: calc(var(--nav-height) + var(--space-lg));
}

.editor-panel {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
}

.editor-panel-title {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-tertiary);
  margin-bottom: var(--space-md);
  font-family: var(--font-mono);
}

.editor-preview {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  margin-top: var(--space-lg);
}

.editor-preview-title {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-tertiary);
  margin-bottom: var(--space-md);
  font-family: var(--font-mono);
}

@media (max-width: 900px) {
  .editor-form {
    grid-template-columns: 1fr;
  }
  .editor-sidebar {
    position: static;
  }
}

/* ---------- About Page ---------- */
.about-hero {
  padding: calc(var(--nav-height) + var(--space-3xl)) 0 var(--space-2xl);
  position: relative;
}

.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.about-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-lg);
}

.about-title .accent {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  color: var(--accent-gold);
}

.about-bio {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-lg);
}

.about-visual {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--bg-tertiary);
}

.about-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 50%, rgba(232, 196, 104, 0.15) 100%);
}

@media (max-width: 768px) {
  .about-grid {
    grid-template-columns: 1fr;
  }
}

.interests-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
}

.interest-card {
  padding: var(--space-xl);
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.interest-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent-color, var(--accent-gold));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.interest-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
}

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

.interest-card-icon {
  font-size: 2rem;
  margin-bottom: var(--space-md);
}

.interest-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.interest-card-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ---------- Toast Notifications ---------- */
.toast-container {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  pointer-events: none;
}

.toast {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  color: var(--text-primary);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  min-width: 280px;
  max-width: 400px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  animation: toastIn 0.4s var(--ease-spring);
  pointer-events: auto;
  backdrop-filter: blur(20px);
}

.toast.success { border-left: 3px solid #10b981; }
.toast.error { border-left: 3px solid var(--accent-coral); }
.toast.info { border-left: 3px solid var(--accent-gold); }

.toast.removing {
  animation: toastOut 0.3s var(--ease-in-out) forwards;
}

@keyframes toastIn {
  from { transform: translateX(120%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

@keyframes toastOut {
  to { transform: translateX(120%); opacity: 0; }
}

/* ---------- Empty State ---------- */
.empty-state {
  text-align: center;
  padding: var(--space-3xl) var(--space-xl);
  color: var(--text-tertiary);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
  opacity: 0.5;
}

.empty-state-title {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
}

.empty-state-desc {
  font-size: 0.95rem;
  max-width: 400px;
  margin: 0 auto;
}

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--border-color);
  padding: var(--space-2xl) 0;
  margin-top: var(--space-3xl);
  position: relative;
  z-index: 2;
}

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

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

.footer-links {
  display: flex;
  gap: var(--space-lg);
}

.footer-links a {
  color: var(--text-tertiary);
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

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

/* ---------- Scroll Animations ---------- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ---------- Loading Spinner ---------- */
.spinner {
  width: 24px;
  height: 24px;
  border: 2px solid var(--border-color);
  border-top-color: var(--accent-gold);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  :root {
    --space-3xl: 4rem;
    --space-2xl: 2.5rem;
  }

  .nav-links {
    display: none;
  }

  .nav-inner {
    padding: 0 var(--space-md);
  }

  .container,
  .container-narrow {
    padding: 0 var(--space-md);
  }

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

  .hero {
    min-height: 90vh;
  }

  .toast-container {
    left: var(--space-md);
    right: var(--space-md);
    bottom: var(--space-md);
  }

  .toast {
    min-width: auto;
    max-width: none;
  }
}

/* ---------- Selection ---------- */
::selection {
  background: var(--accent-gold);
  color: var(--bg-primary);
}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-elevated);
  border-radius: var(--radius-full);
  border: 2px solid var(--bg-primary);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}