/* Bitlog UI sync preview - inspired by newechoes_git */
:root {
  --bg: #f8fafc;
  --bg-soft: #f1f5f9;
  --surface: #ffffff;
  --surface-2: #f8fafc;
  --text: #0f172a;
  --muted: #475569;
  --border: #e2e8f0;
  --primary: #4b6bff;
  --primary-700: #2541b7;
  --primary-100: #ebf0ff;
  --success: #10b981;
  --danger: #ef4444;
  --radius: 16px;
  --radius-sm: 12px;
  --shadow: 0 12px 24px rgba(15, 23, 42, 0.08);
  --shadow-soft: 0 6px 16px rgba(15, 23, 42, 0.06);
  --focus: 0 0 0 3px rgba(75, 107, 255, 0.25);
  --font: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --theme-transition: 320ms;
  --bg-glow-1: rgba(75, 107, 255, 0.16);
  --bg-glow-2: rgba(99, 102, 241, 0.12);
  --bg-glow-3: rgba(14, 116, 144, 0.08);
  --theme-toggle-ripple-size: 10px;
  --theme-toggle-ripple-duration: 800ms;
  --theme-toggle-ripple-opacity: 0.15;
  --theme-toggle-ripple-scale: 10;
  --container-max: 1180px;
}

[data-theme="dark"] {
  --bg: #0f172a;
  --bg-soft: #111827;
  --surface: #1e293b;
  --surface-2: #334155;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --border: #475569;
  --primary: #4b6bff;
  --primary-700: #839dff;
  --primary-100: rgba(75, 107, 255, 0.2);
  --shadow: 0 12px 24px rgba(0, 0, 0, 0.35);
  --shadow-soft: 0 6px 16px rgba(0, 0, 0, 0.25);
  --bg-glow-1: rgba(75, 107, 255, 0.2);
  --bg-glow-2: rgba(99, 102, 241, 0.14);
  --bg-glow-3: rgba(56, 189, 248, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: light;
}

html[data-theme="dark"] {
  color-scheme: dark;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background-color: var(--bg);
  background-image:
    radial-gradient(1000px 520px at 12% -12%, var(--bg-glow-1), transparent 62%),
    radial-gradient(820px 520px at 92% -8%, var(--bg-glow-2), transparent 60%),
    radial-gradient(900px 520px at 50% 110%, var(--bg-glow-3), transparent 65%);
  background-attachment: fixed;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}


::selection {
  background: rgba(75, 107, 255, 0.22);
}

[data-theme="dark"] body {
  background-color: var(--bg);
  background-image:
    radial-gradient(1000px 520px at 12% -12%, var(--bg-glow-1), transparent 62%),
    radial-gradient(820px 520px at 92% -8%, var(--bg-glow-2), transparent 60%),
    radial-gradient(900px 520px at 50% 110%, var(--bg-glow-3), transparent 65%);
  background-attachment: fixed;
}


a {
  color: inherit;
  text-decoration: none;
}

html.theme-transition,
html.theme-transition * {
  transition:
    background-color var(--theme-transition) ease,
    color var(--theme-transition) ease,
    border-color var(--theme-transition) ease,
    box-shadow var(--theme-transition) ease;
}

html.theme-transition-active {
  transition: none !important;
}

::view-transition-old(root),
::view-transition-new(root) {
  animation: none !important;
  mix-blend-mode: normal !important;
  isolation: auto !important;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== Command Palette (Web) ===== */
.blcmd-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(10px);
  display: grid;
  place-items: start center;
  padding: 10vh 14px 14px;
}

.blcmd-panel {
  width: min(760px, 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.blcmd-head {
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 12px;
  border-bottom: 1px solid var(--border);
  background: var(--surface-2);
}

.blcmd-input {
  flex: 1;
  min-width: 0;
  height: 42px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  padding: 0 12px;
  outline: none;
}

.blcmd-input:focus {
  box-shadow: var(--focus);
  border-color: rgba(75, 107, 255, 0.35);
}

.blcmd-close {
  height: 42px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  padding: 0 10px;
  cursor: pointer;
}

.blcmd-close:hover {
  color: var(--text);
}

.blcmd-list {
  max-height: min(56vh, 560px);
  overflow: auto;
  padding: 6px;
}

.blcmd-item {
  width: 100%;
  display: flex;
  gap: 12px;
  align-items: center;
  text-align: left;
  border: 1px solid transparent;
  border-radius: 14px;
  background: transparent;
  color: var(--text);
  padding: 10px 10px;
  cursor: pointer;
}

.blcmd-item:hover {
  background: var(--primary-100);
  border-color: rgba(75, 107, 255, 0.2);
}

.blcmd-item.is-disabled {
  opacity: 0.55;
}

.blcmd-main {
  flex: 1;
  min-width: 0;
}

.blcmd-title {
  font-weight: 750;
  font-size: 13px;
}

.blcmd-desc {
  margin-top: 2px;
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.blcmd-kbd {
  flex-shrink: 0;
  font: 12px/1 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  color: var(--muted);
  border: 1px solid var(--border);
  background: var(--surface-2);
  border-radius: 12px;
  padding: 6px 8px;
}

.blcmd-empty {
  padding: 16px 12px;
  color: var(--muted);
}

.blcmd-foot {
  padding: 10px 12px;
  border-top: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--muted);
  font-size: 12px;
}

.blcmd-fab {
  position: fixed;
  right: 14px;
  bottom: 14px;
  z-index: 900;
  width: 46px;
  height: 46px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow-soft);
  cursor: pointer;
}

@media (min-width: 860px) {
  .blcmd-fab {
    display: none;
  }
}

/* ===== Post prev/next ===== */
.post-nav {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.post-nav-inner {
  display: flex;
  gap: 10px;
  justify-content: space-between;
}

.post-nav-btn.is-disabled {
  pointer-events: none;
  opacity: 0.5;
}

@media (min-width: 1440px) {
  :root { --container-max: 1320px; }
}

@media (min-width: 1760px) {
  :root { --container-max: 1480px; }
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  border-bottom: 1px solid var(--border);
}

[data-theme="dark"] .site-header {
  background: rgba(15, 23, 42, 0.8);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3),
    0 2px 4px -1px rgba(0, 0, 0, 0.2);
}

.header-inner {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  font-weight: 800;
  font-size: 20px;
  letter-spacing: 0.2px;
  background: linear-gradient(90deg, var(--primary), #7da2ff);
  -webkit-background-clip: text;
  color: transparent;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.header-center {
  display: flex;
  justify-content: center;
  flex: 1 1 auto;
  min-width: 0;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  min-width: 0;
}

.header-right .admin-link {
  flex: 0 0 auto;
  white-space: nowrap;
}

.nav {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.nav-main {
  gap: 6px;
  padding: 5px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 72%, transparent);
  box-shadow: var(--shadow-soft);
  min-width: 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.nav-main::-webkit-scrollbar {
  display: none;
}

[data-theme="dark"] .nav-main {
  background: rgba(15, 23, 42, 0.55);
  border-color: rgba(148, 163, 184, 0.28);
}

.nav a:not(.btn) {
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 13px;
  color: var(--muted);
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease,
    box-shadow 0.2s ease;
  white-space: nowrap;
}

.nav a:not(.btn):hover {
  color: var(--text);
  background: var(--surface-2);
  border-color: var(--border);
}

.nav a:not(.btn).active {
  color: var(--text);
  background: var(--primary-100);
  border: 1px solid color-mix(in srgb, var(--primary) 40%, transparent);
  box-shadow: 0 6px 14px rgba(75, 107, 255, 0.22);
}

#themeToggle {
  position: relative;
  overflow: hidden;
}

.btn.icon {
  width: 38px;
  height: 38px;
  padding: 8px;
  justify-content: center;
  gap: 0;
}

#themeToggle svg {
  width: 18px;
  height: 18px;
  display: block;
  position: absolute;
  left: 50%;
  top: 50%;
  transition: opacity 200ms ease, transform 220ms ease;
  transform-origin: center;
  pointer-events: none;
}

#themeToggle .icon-sun {
  opacity: 0;
  transform: translate(-50%, -50%) rotate(-35deg) scale(0.9);
}

#themeToggle .icon-moon {
  opacity: 1;
  transform: translate(-50%, -50%) rotate(0deg) scale(1);
}

html[data-theme="dark"] #themeToggle .icon-sun {
  opacity: 1;
  transform: translate(-50%, -50%) rotate(0deg) scale(1);
}

html[data-theme="dark"] #themeToggle .icon-moon {
  opacity: 0;
  transform: translate(-50%, -50%) rotate(35deg) scale(0.9);
}

.search {
  width: min(520px, 100%);
}

.search {
  display: flex;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 14px;
  box-shadow: var(--shadow-soft);
  position: relative;
}

.search:focus-within {
  border-color: color-mix(in srgb, var(--primary) 60%, var(--border));
  box-shadow: 0 0 0 2px rgba(75, 107, 255, 0.25), var(--shadow-soft);
}

[data-theme="dark"] .search {
  background: rgba(15, 23, 42, 0.6);
  border-color: rgba(148, 163, 184, 0.35);
  box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.3);
}

.search input {
  width: 100%;
  border: none;
  outline: none;
  background: transparent;
  color: var(--text);
  font-size: 14px;
}

.search input:focus-visible {
  outline: none !important;
  box-shadow: none !important;
}

.search input::placeholder {
  color: color-mix(in srgb, var(--muted) 85%, transparent);
}

.search-suggest {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  right: 0;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  backdrop-filter: blur(12px);
  border-radius: 14px;
  padding: 10px;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
  z-index: 30;
}

.search-suggest__meta {
  color: var(--muted);
  font-size: 13px;
  padding: 2px 2px 10px;
  border-bottom: 1px solid color-mix(in srgb, var(--border) 80%, transparent);
}

.search-suggest__list {
  margin-top: 10px;
  display: grid;
  gap: 10px;
  max-height: min(62vh, 520px);
  overflow: auto;
  padding-right: 6px;
}

.search-suggest__item {
  display: grid;
  gap: 6px;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid color-mix(in srgb, var(--border) 85%, transparent);
  background: color-mix(in srgb, var(--surface-2) 70%, transparent);
  text-decoration: none;
}

.search-suggest__item:hover {
  border-color: color-mix(in srgb, var(--primary) 45%, var(--border));
  box-shadow: 0 8px 18px rgba(75, 107, 255, 0.12);
  transform: translateY(-1px);
}

.search-suggest__title {
  font-weight: 760;
  letter-spacing: 0.1px;
  color: var(--text);
}

.search-suggest__desc {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.search-suggest__empty {
  padding: 14px 2px 2px;
  color: var(--muted);
  font-size: 13px;
}

mark {
  background: rgba(247, 173, 54, 0.42);
  color: inherit;
  padding: 0 3px;
  border-radius: 6px;
}

.search-suggest__list::-webkit-scrollbar {
  width: 10px;
}
.search-suggest__list::-webkit-scrollbar-thumb {
  background: rgba(148, 163, 184, 0.35);
  border-radius: 999px;
  border: 2px solid transparent;
  background-clip: padding-box;
}
.search-suggest__list::-webkit-scrollbar-track {
  background: transparent;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  font-size: 13px;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease,
    box-shadow 0.2s ease, transform 0.08s ease;
}

.btn:hover {
  color: var(--text);
  border-color: color-mix(in srgb, var(--text) 14%, var(--border));
  box-shadow: var(--shadow-soft);
}

.btn:active {
  transform: translateY(1px);
}

.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.55;
  cursor: not-allowed;
  box-shadow: none;
}

.btn.primary {
  color: #fff;
  border-color: transparent;
  background: linear-gradient(120deg, var(--primary), #7da2ff);
  box-shadow: 0 10px 18px rgba(75, 107, 255, 0.25);
}

.btn.primary:hover {
  box-shadow: 0 14px 22px rgba(75, 107, 255, 0.32);
}

.btn.ghost {
  background: transparent;
}

.btn.ghost:hover {
  background: color-mix(in srgb, var(--surface) 70%, transparent);
  border-color: var(--border);
}

@keyframes ripple-effect {
  from {
    transform: translate(-50%, -50%) scale(0);
    opacity: 0.8;
  }
  to {
    transform: translate(-50%, -50%) scale(var(--theme-toggle-ripple-scale));
    opacity: 0;
  }
}

.theme-ripple {
  position: absolute;
  border-radius: 50%;
  width: var(--theme-toggle-ripple-size);
  height: var(--theme-toggle-ripple-size);
  pointer-events: none;
  animation: ripple-effect var(--theme-toggle-ripple-duration) ease-out forwards;
  background-color: rgba(var(--theme-ripple-color, 100, 100, 100), var(--theme-toggle-ripple-opacity));
}

.page-wrap {
  padding: 28px 0 72px;
  flex: 1 0 auto;
  /* body is a flex container; allow main content to shrink on mobile even if it contains long code lines */
  min-width: 0;
}

.hero {
  padding: 56px 0 24px;
  text-align: center;
}

.hero-title {
  margin: 0 0 12px;
  font-size: 56px;
  font-weight: 800;
  background: linear-gradient(90deg, var(--primary), #7da2ff);
  -webkit-background-clip: text;
  color: transparent;
}

.hero-subtitle {
  margin: 0 auto;
  max-width: 720px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.7;
}

.hero-actions {
  margin-top: 18px;
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.feature-card {
  padding: 16px;
  display: grid;
  gap: 8px;
}

.feature-title {
  font-weight: 700;
  margin: 0;
}

.feature-desc {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.section-title {
  font-size: 18px;
  margin: 0 0 12px;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 20px;
  align-items: start;
}

/* Grid items also need to be allowed to shrink; otherwise long code lines can force page overflow. */
.layout > section,
.layout > aside {
  min-width: 0;
}

@media (max-width: 980px) {
  .header-inner {
    height: auto;
    flex-wrap: wrap;
    padding: 10px 0;
  }
  .header-left {
    order: 1;
  }
  .header-center {
    order: 2;
    flex: 1 0 100%;
  }
  .header-right {
    order: 3;
    flex: 1 0 100%;
    justify-content: space-between;
  }
  .nav {
    flex-wrap: nowrap;
  }
  .nav-main {
    flex: 1 1 auto;
  }
  .hero-title {
    font-size: 40px;
  }
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
  .layout {
    grid-template-columns: 1fr;
  }
}

.card {
  display: block;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}

[data-theme="dark"] .card {
  background: var(--surface);
  border-color: var(--border);
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 28px rgba(15, 23, 42, 0.12);
}

[data-theme="dark"] .card:hover {
  box-shadow: 0 20px 30px rgba(0, 0, 0, 0.35);
}

.card.is-active {
  border-color: color-mix(in srgb, var(--primary) 55%, var(--border));
  box-shadow:
    0 0 0 2px rgba(75, 107, 255, 0.35),
    0 18px 28px rgba(15, 23, 42, 0.12);
}

[data-theme="dark"] .card.is-active {
  border-color: rgba(131, 157, 255, 0.75);
  box-shadow:
    0 0 0 2px rgba(131, 157, 255, 0.45),
    0 20px 30px rgba(0, 0, 0, 0.45);
}

.card.soft {
  background: var(--surface-2);
  box-shadow: var(--shadow-soft);
}

.card-body {
  padding: 18px;
  min-width: 0;
}

.meta {
  color: var(--muted);
  font-size: 13px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: 13px;
  color: var(--muted);
  max-width: 70vw;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  font-size: 12px;
  color: var(--muted);
}

.chip.is-disabled {
  opacity: 0.55;
  pointer-events: none;
}

.chip.is-active {
  color: var(--primary-700);
  border-color: color-mix(in srgb, var(--primary) 45%, var(--border));
  background: var(--primary-100);
}

[data-theme="dark"] .chip.is-active {
  color: #c7d4ff;
  border-color: rgba(131, 157, 255, 0.6);
  background: rgba(26, 50, 147, 0.35);
}

.chip.primary {
  color: var(--primary-700);
  border-color: color-mix(in srgb, var(--primary) 40%, var(--border));
  background: var(--primary-100);
}

.chip.success {
  color: #065f46;
  background: #d1fae5;
  border-color: #a7f3d0;
}

.chip.danger {
  color: #7f1d1d;
  background: #fee2e2;
  border-color: #fecaca;
}

/* ── Chip color variants (hash-assigned) ── */
.chip--blue   { color: #1d4ed8; background: #eff6ff; border-color: #bfdbfe; }
.chip--purple { color: #6d28d9; background: #f5f3ff; border-color: #ddd6fe; }
.chip--green  { color: #065f46; background: #ecfdf5; border-color: #a7f3d0; }
.chip--orange { color: #92400e; background: #fffbeb; border-color: #fde68a; }
.chip--pink   { color: #9d174d; background: #fdf2f8; border-color: #fbcfe8; }
.chip--teal   { color: #134e4a; background: #f0fdfa; border-color: #99f6e4; }

[data-theme="dark"] .chip--blue   { color: #93c5fd; background: rgba(29, 78, 216, 0.2); border-color: rgba(147, 197, 253, 0.3); }
[data-theme="dark"] .chip--purple { color: #c4b5fd; background: rgba(109, 40, 217, 0.2); border-color: rgba(196, 181, 253, 0.3); }
[data-theme="dark"] .chip--green  { color: #6ee7b7; background: rgba(6, 95, 70, 0.2); border-color: rgba(110, 231, 183, 0.3); }
[data-theme="dark"] .chip--orange { color: #fcd34d; background: rgba(146, 64, 14, 0.2); border-color: rgba(252, 211, 77, 0.3); }
[data-theme="dark"] .chip--pink   { color: #f9a8d4; background: rgba(157, 23, 77, 0.2); border-color: rgba(249, 168, 212, 0.3); }
[data-theme="dark"] .chip--teal   { color: #5eead4; background: rgba(19, 78, 74, 0.2); border-color: rgba(94, 234, 212, 0.3); }

.article-list {
  display: grid;
  gap: 14px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.article-card {
  padding: 16px;
  display: grid;
  gap: 8px;
  border-left: 3px solid transparent;
  transition: border-color 200ms ease;
}

.article-card:hover {
  border-left-color: var(--primary);
}

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

.article-title {
  font-size: 20px;
  font-weight: 700;
  margin: 0;
}

.article-summary {
  color: var(--muted);
  margin: 0;
  font-size: 14px;
}

.related-section {
  display: grid;
  gap: 12px;
}

.related-item {
  display: block;
  padding: 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}

.section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin: 0 0 14px;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

@media (max-width: 860px) {
  .cards-grid {
    grid-template-columns: 1fr;
  }
}

.card-link {
  display: block;
  padding: 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
  transition: transform 120ms ease, border-color 200ms ease, background 200ms ease,
    box-shadow 200ms ease;
}

.card-link:hover {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--primary) 45%, var(--border));
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.12);
}

[data-theme="dark"] .card-link:hover {
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.35);
}

.repo-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.repo-title {
  font-weight: 820;
  font-size: 16px;
  letter-spacing: 0.1px;
}

.repo-sub {
  margin-top: 4px;
  font-size: 12px;
}

.repo-desc {
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.repo-meta {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* ── Repo card new layout ── */
.repo-card {
  border-left: 3px solid transparent;
  transition: border-color 200ms ease;
}

.repo-card:hover {
  border-left-color: var(--primary);
}

.repo-card__inner {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.repo-card__avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--border);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface-2);
}

.repo-card__avatar--github {
  background: #24292e;
  color: #fff;
  border-color: #24292e;
}

.repo-card__avatar--gitee {
  background: #c0392b;
  color: #fff;
  border-color: #c0392b;
}

.repo-card__avatar-icon {
  display: block;
}

.repo-card__body {
  flex: 1;
  min-width: 0;
}

.repo-platform {
  display: inline-flex;
  align-items: center;
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.3px;
  flex-shrink: 0;
}

.repo-platform--github {
  background: #24292e;
  color: #fff;
}

.repo-platform--gitee {
  background: #c0392b;
  color: #fff;
}

/* ── Tool card icon ── */
.tool-card {
  border-left: 3px solid transparent;
  transition: border-color 200ms ease;
  padding: 20px;
}

.tool-card:hover {
  border-left-color: var(--primary);
}

.tool-card__icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  color: #fff;
  flex-shrink: 0;
}

.tool-card__icon--games { background: linear-gradient(135deg, #7c3aed, #a78bfa); }
.tool-card__icon--apis  { background: linear-gradient(135deg, #2563eb, #60a5fa); }
.tool-card__icon--utils { background: linear-gradient(135deg, #059669, #34d399); }
.tool-card__icon--other { background: linear-gradient(135deg, #475569, #94a3b8); }

.tool-card .repo-desc {
  -webkit-line-clamp: 2;
}

.aside-block {
  padding: 14px;
}

.aside-title {
  margin: 0 0 10px;
  font-size: 14px;
  font-weight: 700;
}

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

.tag-list .tag-more {
  flex-basis: 100%;
  margin-top: 6px;
  display: flex;
  flex-direction: column;
}

.tag-more-summary {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px 0 2px;
  cursor: pointer;
  user-select: none;
  color: var(--primary);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.02em;
}

.tag-more-summary::-webkit-details-marker {
  display: none;
}

.tag-more-summary::marker {
  content: "";
}

.tag-more .more {
  padding-left: 0;
}

.tag-more .more::before {
  content: "";
  display: none;
}

.tag-more:not([open]) .less {
  display: none;
}

.tag-more[open] .more {
  display: none;
}

.tag-more > summary {
  order: 2;
}

.tag-more > .tag-list {
  order: 1;
}

.tag-more .tag-list {
  margin-top: 6px;
}

.prose {
  line-height: 1.75;
  font-size: 16px;
}

.prose ul.contains-task-list,
.prose ol.contains-task-list {
  list-style: none;
  padding-left: 0;
}

.prose li.task-list-item {
  list-style: none;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.prose li.task-list-item > input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 6px;
  border: 1.5px solid color-mix(in srgb, var(--primary) 55%, var(--border));
  background: color-mix(in srgb, var(--surface) 92%, var(--bg));
  margin-top: 0.2em;
  flex: 0 0 auto;
  box-shadow: 0 6px 14px color-mix(in srgb, var(--primary) 10%, transparent);
}

.prose li.task-list-item > input[type="checkbox"]:checked {
  background: color-mix(in srgb, var(--primary) 18%, var(--surface));
  border-color: color-mix(in srgb, var(--primary) 75%, var(--border));
}

.prose li.task-list-item > input[type="checkbox"]:checked::after {
  content: "";
  display: block;
  width: 10px;
  height: 6px;
  border-left: 2px solid var(--primary);
  border-bottom: 2px solid var(--primary);
  transform: translate(3px, 4px) rotate(-45deg);
}

.prose li.task-list-item > p {
  margin: 0;
}

.prose h2 {
  font-size: 22px;
  margin-top: 20px;
}

.code-block {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: color-mix(in srgb, var(--surface) 94%, var(--bg));
  box-shadow: var(--shadow-soft);
}

[data-theme="dark"] .code-block {
  background: linear-gradient(180deg, rgba(11, 18, 32, 0.94), rgba(2, 6, 23, 0.88));
  border-color: rgba(148, 163, 184, 0.25);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.45);
}

.code-block-header {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px 10px 54px;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface-2) 92%, transparent);
}

.code-block-header::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 10px;
  border-radius: 999px;
  background:
    radial-gradient(circle at 5px 5px, #ef4444 0 3px, transparent 3.6px),
    radial-gradient(circle at 14px 5px, #f59e0b 0 3px, transparent 3.6px),
    radial-gradient(circle at 23px 5px, #22c55e 0 3px, transparent 3.6px);
  opacity: 0.9;
}

[data-theme="dark"] .code-block-header {
  background: rgba(15, 23, 42, 0.65);
  border-bottom-color: rgba(148, 163, 184, 0.2);
}

.code-block-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.code-block-label::before {
  content: "</>";
  font-weight: 700;
  font-size: 11px;
  color: var(--primary);
  opacity: 0.8;
}

.code-block-copy {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.code-block-copy::before {
  content: "";
  width: 12px;
  height: 12px;
  border: 1.5px solid currentColor;
  border-radius: 3px;
  box-shadow: 4px -4px 0 0 currentColor;
}

.code-block-copy:hover {
  color: var(--text);
  border-color: color-mix(in srgb, var(--primary) 40%, var(--border));
  box-shadow: 0 6px 12px rgba(75, 107, 255, 0.18);
}

.code-block-copy.copied {
  color: #0f766e;
  border-color: rgba(16, 185, 129, 0.5);
  background: rgba(16, 185, 129, 0.12);
}

.code-block pre {
  margin: 0;
  background: transparent;
  overflow: auto;
}

.code-content {
  display: block;
  padding: 12px 14px 14px;
  font-size: 14px;
  line-height: 1.7;
  white-space: pre;
}

.code-line {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.line-number {
  width: 20px;
  text-align: right;
  color: var(--muted);
  opacity: 0.6;
  user-select: none;
  flex-shrink: 0;
}

.code-text {
  display: inline-block;
}

/* Refractor/Prism token styles (light) */
.token.comment,
.token.prolog,
.token.doctype,
.token.cdata {
  color: rgba(15, 23, 42, 0.55);
  font-style: italic;
}

.token.punctuation {
  color: rgba(15, 23, 42, 0.55);
}

.token.property,
.token.tag,
.token.boolean,
.token.number,
.token.constant,
.token.symbol,
.token.deleted {
  color: #db2777;
}

.token.selector,
.token.attr-name,
.token.string,
.token.char,
.token.builtin,
.token.inserted {
  color: #16a34a;
}

.token.operator,
.token.entity,
.token.url,
.token.variable {
  color: rgba(15, 23, 42, 0.82);
}

.token.atrule,
.token.attr-value,
.token.function,
.token.class-name {
  color: #2563eb;
}

.token.keyword {
  color: #7c3aed;
}

.token.regex,
.token.important {
  color: #c2410c;
}

.token.important,
.token.bold {
  font-weight: 700;
}

.token.italic {
  font-style: italic;
}

/* Refractor/Prism token styles (dark) */
[data-theme="dark"] .token.comment,
[data-theme="dark"] .token.prolog,
[data-theme="dark"] .token.doctype,
[data-theme="dark"] .token.cdata {
  color: rgba(255, 255, 255, 0.45);
}

[data-theme="dark"] .token.punctuation {
  color: rgba(255, 255, 255, 0.62);
}

[data-theme="dark"] .token.property,
[data-theme="dark"] .token.tag,
[data-theme="dark"] .token.boolean,
[data-theme="dark"] .token.number,
[data-theme="dark"] .token.constant,
[data-theme="dark"] .token.symbol,
[data-theme="dark"] .token.deleted {
  color: #ff7aa2;
}

[data-theme="dark"] .token.selector,
[data-theme="dark"] .token.attr-name,
[data-theme="dark"] .token.string,
[data-theme="dark"] .token.char,
[data-theme="dark"] .token.builtin,
[data-theme="dark"] .token.inserted {
  color: #7ee787;
}

[data-theme="dark"] .token.operator,
[data-theme="dark"] .token.entity,
[data-theme="dark"] .token.url,
[data-theme="dark"] .token.variable {
  color: rgba(255, 255, 255, 0.78);
}

[data-theme="dark"] .token.atrule,
[data-theme="dark"] .token.attr-value,
[data-theme="dark"] .token.function,
[data-theme="dark"] .token.class-name {
  color: #79c0ff;
}

[data-theme="dark"] .token.keyword {
  color: #a5b4fc;
}

[data-theme="dark"] .token.regex,
[data-theme="dark"] .token.important {
  color: #f2cc60;
}
.prose code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

.prose img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.prose pre {
  overflow: auto;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface-2) 70%, transparent);
}

[data-theme="dark"] .prose pre {
  background: rgba(0, 0, 0, 0.28);
}

.prose .code-block {
  margin: 12px 0;
}

.prose .code-block pre {
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.prose .code-block pre > code {
  border: 0;
  background: transparent;
}

.prose :not(pre) > code {
  padding: 2px 6px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface-2) 70%, transparent);
}

.prose pre > code {
  display: block;
}

.prose table {
  width: 100%;
  border-collapse: collapse;
}

.prose th,
.prose td {
  border: 1px solid var(--border);
  padding: 8px 10px;
}

.prose a {
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--primary) 55%, transparent);
  text-underline-offset: 3px;
}

.toc a {
  color: var(--muted);
  font-size: 13px;
  display: block;
  padding: 6px 8px;
  border-radius: 10px;
}

.toc a:hover {
  color: var(--primary-700);
  background: color-mix(in srgb, var(--primary) 10%, transparent);
}

.toc a[data-level="3"] {
  padding-left: 18px;
  font-size: 12px;
  opacity: 0.9;
}

.footer {
  padding: 26px 0 40px;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

/* Site footer (copyright / sitemap / RSS / ICP) */
.site-footer {
  margin-top: auto;
  padding: 22px 0 26px;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
  border-top: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 45%, transparent);
  backdrop-filter: blur(10px);
}

.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.site-footer__dot {
  display: none;
}

@media (min-width: 640px) {
  .site-footer__dot {
    display: inline;
  }
}

.site-footer a {
  color: inherit;
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--primary-700);
  text-decoration: underline;
}

.site-footer__icp {
  margin-top: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.site-footer__icp img {
  opacity: 0.92;
}

/* Embed cards */
.embed-card {
  display: block;
  margin: 14px 0;
  padding: 14px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 85%, transparent);
  box-shadow: var(--shadow-soft);
  text-decoration: none;
}

.embed-card:hover {
  border-color: color-mix(in srgb, var(--primary) 45%, var(--border));
  box-shadow: var(--shadow);
  transform: translateY(-1px);
}

.embed-card__row {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.embed-card__avatar {
  width: 38px;
  height: 38px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--text) 12%, var(--border));
  background: color-mix(in srgb, var(--surface) 80%, transparent);
  flex: 0 0 auto;
}

.embed-card__main {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
  flex: 1 1 auto;
}

.embed-card__title {
  font-weight: 750;
  letter-spacing: -0.1px;
  line-height: 1.2;
}

.embed-card__desc {
  color: color-mix(in srgb, var(--text) 72%, transparent);
  font-size: 13px;
  line-height: 1.45;
}

.embed-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.embed-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 80%, transparent);
  color: color-mix(in srgb, var(--text) 78%, transparent);
  font-size: 12px;
  line-height: 1;
}

.embed-card__badge {
  flex: 0 0 auto;
  font-size: 12px;
  color: color-mix(in srgb, var(--text) 72%, transparent);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 9px;
  background: color-mix(in srgb, var(--surface) 80%, transparent);
}

.embed-card--gitee .embed-card__badge {
  border-color: color-mix(in srgb, #ef4444 40%, var(--border));
  background: color-mix(in srgb, #ef4444 12%, transparent);
  color: color-mix(in srgb, #ef4444 65%, var(--text));
}

.embed-card--github .embed-card__badge {
  border-color: color-mix(in srgb, #111827 35%, var(--border));
  background: color-mix(in srgb, #111827 8%, transparent);
}

.embed-card[data-loading="1"] .embed-card__desc,
.embed-card[data-loading="1"] .embed-pill {
  opacity: 0.65;
}

/* Embed iframe */
.embed-iframe {
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--surface-2) 70%, transparent);
  margin: 14px 0;
}

.embed-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 80%, transparent);
  text-decoration: none;
}

.blur {
  filter: blur(7px);
  transition: filter 0.18s ease;
  cursor: help;
  text-decoration: underline dotted color-mix(in srgb, var(--text) 28%, transparent);
  text-underline-offset: 3px;
}

.blur:hover {
  filter: blur(0px);
}

/* Admin layout */
.admin-topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--bg) 90%, transparent);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
}

.admin-topbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 58px;
}

.admin-shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: 22px 20px 70px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.field {
  display: grid;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
}

.field input,
.field textarea,
.field select {
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  outline: none;
}

.field input:focus,
.field textarea:focus,
.field select:focus {
  box-shadow: var(--focus);
  border-color: color-mix(in srgb, var(--primary) 40%, var(--border));
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.table th,
.table td {
  border-bottom: 1px solid var(--border);
  padding: 10px 8px;
  text-align: left;
}

.table th {
  font-weight: 700;
}

.table tbody tr:hover td {
  background: color-mix(in srgb, var(--surface-2) 70%, transparent);
}

.table tr.is-active td {
  background: var(--primary-100);
}

[data-theme="dark"] .table tr.is-active td {
  background: rgba(26, 50, 147, 0.25);
}

.toolbar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.editor-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  align-items: start;
}

.editor-grid.focus-markdown .editor-panel:first-child {
  border-color: color-mix(in srgb, var(--primary) 45%, var(--border));
  box-shadow:
    0 0 0 2px rgba(75, 107, 255, 0.18),
    var(--shadow);
}

.editor-meta {
  overflow: hidden;
  max-height: 720px;
  opacity: 1;
  margin: 0 0 12px;
  transition: max-height 0.22s ease, opacity 0.18s ease, margin 0.22s ease;
}

.editor-grid.focus-markdown .editor-meta {
  max-height: 0;
  opacity: 0;
  margin: 0;
  pointer-events: none;
}

.editor-panel {
  min-height: 540px;
}

.editor-status {
  font-size: 12px;
  color: var(--muted);
}

.markdown-editor textarea {
  width: 100%;
  resize: vertical;
  transition: height 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
}

.markdown-editor textarea.is-expanded {
  border-color: color-mix(in srgb, var(--primary) 55%, var(--border));
  box-shadow: 0 0 0 2px rgba(75, 107, 255, 0.22), var(--shadow-soft);
}

.markdown-editor textarea.is-flash {
  animation: editor-flash 520ms ease;
}

@keyframes editor-flash {
  0% {
    box-shadow: 0 0 0 0 rgba(75, 107, 255, 0.0), var(--shadow-soft);
  }
  35% {
    box-shadow: 0 0 0 4px rgba(75, 107, 255, 0.25), var(--shadow-soft);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(75, 107, 255, 0.0), var(--shadow-soft);
  }
}

.preview-pane {
  background: var(--surface-2);
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  padding: 14px;
  min-height: 320px;
}

.muted {
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 960px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
  .editor-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .related-grid {
    grid-template-columns: 1fr;
  }

  body {
    background-attachment: scroll;
  }
}

textarea:focus-visible,
select:focus-visible,
[tabindex]:focus-visible,
[role="button"]:focus-visible,
button:focus-visible,
a:focus-visible,
input:focus-visible {
  outline: 3px solid rgba(75, 155, 255, 0.6);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px rgba(75, 155, 255, 0.2);
}

button:focus,
a:focus,
input:focus,
textarea:focus,
select:focus {
  outline: none;
}

@media (prefers-reduced-motion: reduce) {
  :root {
    --theme-transition: 0ms;
    --theme-toggle-ripple-duration: 0ms;
  }

  .card,
  .btn,
  .nav a:not(.btn),
  .theme-ripple {
    transition: none !important;
    animation: none !important;
  }

  .card:hover,
  .btn:active {
    transform: none;
  }

  .markdown-editor textarea.is-flash {
    animation: none !important;
  }

  .editor-meta,
  .markdown-editor textarea {
    transition: none !important;
  }
}