/* Code Neon — 程序员酷炫主题 (extends elegant) */

.theme-code-neon {
  --neon-bg: #050810;
  --neon-surface: rgba(12, 18, 32, 0.82);
  --neon-border: rgba(0, 255, 163, 0.22);
  --neon-glow: calc(12px * var(--glow-strength, 0.65));
  --font-mono: "JetBrains Mono", "Cascadia Code", "Fira Code", ui-monospace, monospace;
  --font-display: "Orbitron", var(--font-mono);
  --color-bg: var(--neon-bg);
  --color-surface: rgba(14, 20, 36, 0.9);
  --color-text: #e2e8f4;
  --color-muted: #7b8ba8;
  --color-border: rgba(0, 212, 255, 0.15);
  --radius: 10px;
}

.theme-code-neon {
  color-scheme: dark;
}

.theme-code-neon body {
  font-family: var(--font-mono);
  background: var(--neon-bg);
  min-height: 100vh;
  overflow-x: hidden;
}

/* —— 背景层 —— */
.neon-bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.55;
}

.neon-scanlines {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.12) 2px,
    rgba(0, 0, 0, 0.12) 4px
  );
  opacity: 0.35;
}

.neon-vignette {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: radial-gradient(ellipse at 50% 0%, transparent 0%, rgba(5, 8, 16, 0.85) 75%);
}

.neon-cursor-glow {
  position: fixed;
  top: 0;
  left: 0;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--color-primary) 18%, transparent) 0%, transparent 70%);
  pointer-events: none;
  z-index: 2;
  transition: transform 0.08s ease-out;
  mix-blend-mode: screen;
}

.theme-code-neon .site-header,
.theme-code-neon main,
.theme-code-neon .site-footer {
  position: relative;
  z-index: 3;
}

/* —— 顶栏 —— */
.theme-code-neon .neon-header {
  background: rgba(8, 12, 22, 0.75);
  border-bottom: 1px solid var(--neon-border);
  backdrop-filter: blur(14px);
  box-shadow: 0 4px 24px rgba(0, 255, 163, 0.06);
}

.theme-code-neon .neon-logo {
  font-family: var(--font-mono);
  text-decoration: none !important;
  color: var(--color-text) !important;
}

.theme-code-neon .term-dots {
  display: inline-flex;
  gap: 5px;
  margin-right: 0.5rem;
}

.theme-code-neon .term-dots i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: block;
}

.theme-code-neon .term-dots i:nth-child(1) { background: #ff5f57; }
.theme-code-neon .term-dots i:nth-child(2) { background: #febc2e; }
.theme-code-neon .term-dots i:nth-child(3) { background: #28c840; }

.theme-code-neon .term-prompt {
  color: var(--neon-accent);
  font-weight: 600;
}

.theme-code-neon .logo-icon {
  color: var(--color-primary);
  font-size: 1.25rem;
  filter: drop-shadow(0 0 8px color-mix(in srgb, var(--color-primary) 60%, transparent));
}

.theme-code-neon .term-cursor,
.theme-code-neon .term-body .term-cursor {
  color: var(--color-primary);
  animation: neon-blink 1s step-end infinite;
  text-shadow: 0 0 8px var(--color-primary);
}

@keyframes neon-blink {
  50% { opacity: 0; }
}

.theme-code-neon .neon-nav a {
  font-size: 0.85rem;
  text-transform: lowercase;
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 0.25rem 0.55rem !important;
  transition: border-color 0.2s, box-shadow 0.2s, color 0.2s;
}

.theme-code-neon .neon-nav a:hover {
  text-decoration: none !important;
  color: var(--color-primary) !important;
  border-color: var(--neon-border);
  box-shadow: 0 0 var(--neon-glow) color-mix(in srgb, var(--color-primary) 25%, transparent);
}

.theme-code-neon .nav-prefix {
  color: var(--neon-accent);
  opacity: 0.85;
  margin-right: 0.15rem;
}

/* —— Hero 终端 —— */
.neon-hero {
  margin-bottom: 2rem;
}

.neon-hero-inner {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.hero-terminal {
  border: 1px solid var(--neon-border);
  border-radius: 12px;
  overflow: hidden;
  background: rgba(6, 10, 20, 0.9);
  box-shadow:
    0 0 var(--neon-glow) color-mix(in srgb, var(--color-primary) 20%, transparent),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.hero-terminal .term-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 0.85rem;
  background: rgba(0, 0, 0, 0.35);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 0.75rem;
  color: var(--color-muted);
}

.hero-terminal .term-title {
  font-family: var(--font-mono);
}

.hero-terminal .term-body {
  margin: 0;
  padding: 1.25rem 1.35rem;
  font-size: clamp(0.8rem, 2vw, 0.95rem);
  line-height: 1.75;
  overflow-x: auto;
}

.hero-terminal .term-body code {
  font-family: inherit;
  background: none;
  padding: 0;
  display: block;
  white-space: pre-wrap;
}

.t-dim { color: var(--color-muted); }
.t-cmd { color: var(--neon-accent); font-weight: 600; }
.t-out {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 4vw, 2rem);
  font-weight: 700;
  color: var(--color-primary);
  text-shadow: 0 0 20px color-mix(in srgb, var(--color-primary) 50%, transparent);
  margin: 0.35rem 0;
  letter-spacing: 0.02em;
}
.t-comment { display: block; color: #6ee7b7; opacity: 0.85; }
.t-accent { color: var(--neon-accent); font-weight: 700; }
.t-cursor-line { display: block; margin-top: 0.5rem; }

.t-glitch {
  position: relative;
}

.t-glitch::before,
.t-glitch::after {
  content: attr(data-text);
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  overflow: hidden;
  clip-path: inset(0);
}

.t-glitch::before {
  color: var(--neon-accent);
  animation: glitch-1 3s infinite linear alternate-reverse;
  opacity: 0.8;
}

.t-glitch::after {
  color: #ff2a6d;
  animation: glitch-2 2.5s infinite linear alternate-reverse;
  opacity: 0.8;
}

@keyframes glitch-1 {
  0%, 90%, 100% { clip-path: inset(80% 0 0 0); transform: translate(-2px, 0); }
  92% { clip-path: inset(10% 0 60% 0); transform: translate(2px, 0); }
}

@keyframes glitch-2 {
  0%, 90%, 100% { clip-path: inset(0 0 70% 0); transform: translate(2px, 0); }
  93% { clip-path: inset(50% 0 20% 0); transform: translate(-2px, 0); }
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.stat-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.75rem;
  font-size: 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: var(--neon-surface);
  color: var(--color-muted);
}

.stat-chip i {
  color: var(--color-primary);
}

/* —— 区块标题 —— */
.neon-section-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text);
  margin-bottom: 1.25rem;
}

.neon-section-title .title-prefix {
  color: var(--color-primary);
}

.neon-section-title .title-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--neon-border), transparent);
  margin-left: 0.5rem;
}

/* —— 文章卡片 —— */
.neon-post-feed {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.neon-card {
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  background: var(--neon-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease, border-color 0.25s, box-shadow 0.25s;
  backdrop-filter: blur(8px);
}

.neon-card.is-visible {
  opacity: 1;
  transform: translateY(0);
  transition-delay: calc(var(--card-i, 0) * 0.06s);
}

.neon-card:hover {
  border-color: color-mix(in srgb, var(--color-primary) 55%, transparent);
  box-shadow:
    0 0 var(--neon-glow) color-mix(in srgb, var(--color-primary) 22%, transparent),
    inset 0 0 0 1px color-mix(in srgb, var(--color-primary) 12%, transparent);
}

.neon-card-gutter {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 1.15rem;
  font-size: 0.7rem;
  color: var(--color-muted);
  background: rgba(0, 0, 0, 0.25);
  border-right: 1px solid var(--color-border);
  font-variant-numeric: tabular-nums;
}

.neon-card-body {
  position: relative;
  min-width: 0;
}

.neon-pin {
  background: linear-gradient(135deg, var(--color-primary), var(--neon-accent)) !important;
  color: #050810 !important;
  font-family: var(--font-mono);
  font-size: 0.7rem !important;
  text-transform: lowercase;
}

.neon-cover {
  position: relative;
  display: block;
  overflow: hidden;
}

.neon-cover .cover-scan {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(0, 255, 163, 0.08) 100%);
  pointer-events: none;
}

/* 有封面：左图右文（覆盖父主题 .post-card-cover img 全宽样式） */
.neon-card-body--cover {
  display: flex;
  flex-direction: row;
  align-items: stretch;
}

.neon-card-body--cover .neon-cover {
  flex: 0 0 38%;
  width: 38%;
  max-width: 300px;
  min-width: 7.5rem;
  align-self: stretch;
  border-right: 1px solid var(--color-border);
}

.neon-card-body--cover .neon-cover img {
  width: 100%;
  height: 100%;
  min-height: 10.5rem;
  object-fit: cover;
  display: block;
}

.neon-card-body--cover .post-card-content {
  flex: 1;
  min-width: 0;
}

.neon-card .post-card-content {
  padding: 1rem 1.15rem 1.1rem;
}

.neon-card h2 {
  font-size: 1.05rem;
  font-weight: 600;
}

.neon-card h2 a {
  color: var(--color-text) !important;
  text-decoration: none !important;
}

.neon-card h2 a:hover {
  color: var(--color-primary) !important;
  text-shadow: 0 0 12px color-mix(in srgb, var(--color-primary) 40%, transparent);
}

.neon-card .title-hash {
  color: var(--neon-accent);
  margin-right: 0.25rem;
}

.neon-card .read-more {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  margin-top: 0.65rem;
  font-size: 0.78rem;
  color: var(--color-primary);
  text-decoration: none !important;
  opacity: 0.9;
}

.neon-card .read-more:hover {
  text-shadow: 0 0 10px var(--color-primary);
}

.neon-tag,
.theme-code-neon .tag-pill {
  font-family: var(--font-mono) !important;
  background: rgba(0, 255, 163, 0.08) !important;
  border-color: var(--neon-border) !important;
  color: var(--color-primary) !important;
}

.neon-empty {
  border: 1px dashed var(--neon-border);
  border-radius: var(--radius);
  padding: 2.5rem;
  text-align: center;
  background: var(--neon-surface);
}

.neon-empty code {
  color: #ff6b9d;
}

/* —— 文章页 —— */
.neon-post-head .post-file-path {
  font-size: 0.8rem;
  color: var(--color-muted);
  margin-bottom: 0.5rem;
}

.neon-post-head .post-file-path i {
  color: var(--neon-accent);
}

.neon-post h1,
.neon-post-head h1 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  letter-spacing: 0.02em;
  text-shadow: 0 0 24px color-mix(in srgb, var(--color-primary) 25%, transparent);
}

.neon-post-cover {
  border: 1px solid var(--neon-border);
  box-shadow: 0 0 var(--neon-glow) color-mix(in srgb, var(--color-primary) 15%, transparent);
}

.neon-article pre,
.neon-article code {
  font-family: var(--font-mono) !important;
}

.neon-article pre {
  border: 1px solid var(--neon-border) !important;
  border-radius: 8px !important;
  background: #0d1117 !important;
  box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.4);
}

.neon-toc {
  border: 1px solid var(--color-border);
  background: var(--neon-surface);
  border-radius: var(--radius);
}
.neon-toc > strong {
  font-family: var(--font-display);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  color: var(--color-primary);
}

/* —— 侧栏 / 页脚 —— */
.theme-code-neon .neon-sidebar .widget {
  border: 1px solid var(--color-border);
  background: var(--neon-surface);
  backdrop-filter: blur(8px);
}

.theme-code-neon .neon-sidebar .widget h3 {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  color: var(--color-primary);
}

.theme-code-neon .site-footer {
  background: rgba(6, 10, 18, 0.9);
  border-top: 1px solid var(--neon-border);
  margin-top: 2rem;
}

.theme-code-neon .footer-copy,
.theme-code-neon .footer-beian a {
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.theme-code-neon .footer-beian a:hover {
  color: var(--color-primary) !important;
  text-shadow: 0 0 8px var(--color-primary);
}

.theme-code-neon .back-to-top {
  background: linear-gradient(135deg, var(--color-primary), var(--neon-accent));
  color: #050810;
  border: none;
  box-shadow: 0 0 20px color-mix(in srgb, var(--color-primary) 40%, transparent);
}

.theme-code-neon .pagination a,
.theme-code-neon .pagination span {
  font-family: var(--font-mono);
  border: 1px solid var(--color-border);
  background: var(--neon-surface);
}

.theme-code-neon .pagination a:hover {
  border-color: var(--color-primary);
  box-shadow: 0 0 12px color-mix(in srgb, var(--color-primary) 30%, transparent);
}

.theme-code-neon .breadcrumb {
  font-size: 0.8rem;
}

.theme-code-neon .comments {
  border-top: 1px solid var(--color-border);
  padding-top: 1.5rem;
}

.theme-code-neon .layout:has(.sidebar) .content {
  max-width: none;
}

.theme-code-neon .neon-sidebar {
  position: sticky;
  top: 4.25rem;
  align-self: start;
}

.theme-code-neon .neon-post-feed {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

@media (min-width: 1200px) {
  .neon-hero-inner {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: end;
    gap: 1.25rem;
  }

  .hero-stats {
    justify-content: flex-end;
  }

  .neon-post-feed {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
  }
}

.theme-code-neon .comment-item {
  border-left: none;
  padding-left: 0;
}

.theme-code-neon .comment-avatar {
  border-color: color-mix(in srgb, var(--color-primary) 45%, transparent);
  box-shadow: 0 0 12px color-mix(in srgb, var(--color-primary) 25%, transparent);
}

.theme-code-neon .neon-article.post-content {
  max-width: 80ch;
}

.theme-code-neon .neon-post-head,
.theme-code-neon .neon-post-cover {
  max-width: none;
}

/* —— 亮色模式（由 html.neon-theme-light + localStorage theme=light 驱动）—— */
html.neon-theme-light .theme-code-neon {
  color-scheme: light;
  --neon-bg: #e8eef8;
  --neon-surface: rgba(255, 255, 255, 0.92);
  --neon-border: rgba(0, 130, 110, 0.32);
  --color-bg: var(--neon-bg);
  --color-surface: #ffffff;
  --color-text: #0f1729;
  --color-muted: #5c6b82;
  --color-border: rgba(0, 90, 160, 0.2);
}

html.neon-theme-light .neon-bg-canvas {
  opacity: 0.22;
}

html.neon-theme-light .neon-scanlines {
  opacity: 0.12;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.04) 2px,
    rgba(0, 0, 0, 0.04) 4px
  );
}

html.neon-theme-light .neon-vignette {
  background: radial-gradient(ellipse at 50% 0%, transparent 0%, rgba(232, 238, 248, 0.75) 78%);
}

html.neon-theme-light .neon-cursor-glow {
  mix-blend-mode: multiply;
  opacity: 0.55;
}

html.neon-theme-light .theme-code-neon .neon-header {
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 4px 24px rgba(0, 120, 100, 0.08);
}

html.neon-theme-light .hero-terminal {
  background: rgba(255, 255, 255, 0.95);
  box-shadow:
    0 0 var(--neon-glow) color-mix(in srgb, var(--color-primary) 18%, transparent),
    0 8px 28px rgba(15, 40, 80, 0.08);
}

html.neon-theme-light .hero-terminal .term-bar {
  background: rgba(240, 244, 252, 0.95);
  border-bottom-color: var(--color-border);
}

html.neon-theme-light .t-comment {
  color: #0d7a5c;
}

html.neon-theme-light .neon-card-gutter {
  background: rgba(0, 0, 0, 0.04);
}

html.neon-theme-light .neon-tag,
html.neon-theme-light .theme-code-neon .tag-pill {
  background: rgba(0, 160, 130, 0.1) !important;
}

html.neon-theme-light .neon-article pre {
  background: #f3f6fb !important;
  color: #1e293b;
  box-shadow: inset 0 0 0 1px var(--color-border);
}

html.neon-theme-light .theme-code-neon .site-footer {
  background: rgba(255, 255, 255, 0.92);
}

html.neon-theme-light body.matrix-on .neon-bg-canvas {
  opacity: 0.18;
}

@media (max-width: 768px) {
  .neon-card {
    grid-template-columns: 1fr;
  }
  .neon-card-gutter {
    display: none;
  }
  .hero-terminal .term-body {
    font-size: 0.78rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .t-glitch::before,
  .t-glitch::after,
  .term-cursor,
  .neon-card {
    animation: none !important;
    transition: none !important;
  }
  .neon-bg-canvas {
    display: none;
  }
}