:root {
  --bg: #0b1220;
  --surface: rgba(255, 255, 255, 0.06);
  --surface-2: rgba(255, 255, 255, 0.09);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.7);
  --muted-2: rgba(255, 255, 255, 0.55);
  --border: rgba(255, 255, 255, 0.14);
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.28);
  --accent: #7c5cff;
  --accent-2: #00d4ff;
  --good: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;

  --radius: 14px;
  --radius-sm: 10px;
  --container: 1100px;

  color-scheme: dark;
}

html[data-theme="light"] {
  --bg: #f8fafc;
  --surface: rgba(2, 6, 23, 0.04);
  --surface-2: rgba(2, 6, 23, 0.06);
  --text: rgba(2, 6, 23, 0.92);
  --muted: rgba(2, 6, 23, 0.7);
  --muted-2: rgba(2, 6, 23, 0.55);
  --border: rgba(2, 6, 23, 0.12);
  --shadow: 0 10px 30px rgba(2, 6, 23, 0.12);
  --accent: #5b5bd6;
  --accent-2: #0284c7;

  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial,
    "Noto Sans", "Liberation Sans", sans-serif;
  line-height: 1.5;
  background: radial-gradient(
      1200px 800px at 20% -10%,
      rgba(124, 92, 255, 0.25),
      transparent 55%
    ),
    radial-gradient(
      900px 600px at 95% 10%,
      rgba(0, 212, 255, 0.14),
      transparent 50%
    ),
    radial-gradient(
      900px 600px at 40% 120%,
      rgba(34, 197, 94, 0.08),
      transparent 55%
    ),
    var(--bg);
  color: var(--text);
}

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

a:hover {
  text-decoration: underline;
}

.container {
  width: min(var(--container), calc(100% - 32px));
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  z-index: 100;
}

.skip-link:focus {
  left: 16px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(10, 14, 25, 0.6);
  border-bottom: 1px solid var(--border);
  color: var(--text);
}

html[data-theme="light"] .site-header {
  background: rgba(248, 250, 252, 0.7);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 0;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 210px;
}

.brand-link {
  font-weight: 800;
  letter-spacing: -0.02em;
  font-size: 16px;
}

.brand-subtitle {
  font-size: 12px;
  color: var(--muted-2);
}

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

.nav-link {
  padding: 8px 10px;
  border-radius: 10px;
  color: var(--text);
  opacity: 0.85;
  text-decoration: none;
}

.nav-link:hover,
.nav-link:focus-visible {
  opacity: 1;
  background: var(--surface);
  outline: none;
  text-decoration: none;
}

.nav-link[aria-current="page"] {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  text-decoration: none;
}

.header-actions {
  margin-left: auto;
  display: flex;
  gap: 10px;
  align-items: center;
}

.button {
  border: 1px solid var(--border);
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.12),
    rgba(255, 255, 255, 0.06)
  );
  color: var(--text);
  padding: 10px 12px;
  border-radius: 12px;
  cursor: pointer;
  box-shadow: 0 2px 0 rgba(0, 0, 0, 0.14);
}

.button:hover {
  filter: brightness(1.05);
}

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

.button-ghost {
  background: transparent;
}

main.container {
  padding: 22px 0 40px;
}

.hero {
  border: 1px solid var(--border);
  background: linear-gradient(
      135deg,
      rgba(124, 92, 255, 0.13),
      transparent 40%
    ),
    linear-gradient(180deg, var(--surface), transparent);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}

.hero h1 {
  margin: 0 0 6px;
  font-size: 26px;
  letter-spacing: -0.02em;
}

.hero p {
  margin: 0;
  color: var(--muted);
}

.toolbar {
  margin-top: 14px;
  display: grid;
  gap: 10px;
  grid-template-columns: 1.3fr 0.9fr 0.8fr;
}

@media (max-width: 920px) {
  .toolbar {
    grid-template-columns: 1fr;
  }
  .brand {
    min-width: 0;
  }
}

.field {
  display: grid;
  gap: 6px;
}

.label {
  font-size: 12px;
  color: var(--muted-2);
}

input[type="search"],
select {
  width: 100%;
  padding: 12px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  outline: none;
}

input[type="search"]::placeholder {
  color: var(--muted-2);
}

input[type="search"]:focus,
select:focus {
  border-color: rgba(124, 92, 255, 0.55);
  box-shadow: 0 0 0 4px rgba(124, 92, 255, 0.18);
}

.grid {
  margin-top: 18px;
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

@media (max-width: 1020px) {
  .grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 700px) {
  .grid {
    grid-template-columns: 1fr;
  }
}

.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--surface), transparent);
  padding: 14px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 10px;
}

.card:hover {
  border-color: rgba(124, 92, 255, 0.35);
}

.card-title {
  margin: 0;
  font-size: 16px;
  letter-spacing: -0.01em;
}

.card-title a {
  text-decoration: none;
}

.card-title a:hover {
  text-decoration: underline;
}

.card-desc {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
  color: var(--muted-2);
  font-size: 12px;
}

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

.chip strong {
  color: var(--text);
  font-weight: 700;
}

.chip-accent {
  border-color: rgba(124, 92, 255, 0.35);
}

.empty {
  margin-top: 18px;
  padding: 16px;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  color: var(--muted);
}

.page {
  display: grid;
  gap: 14px;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  color: var(--muted);
  font-size: 13px;
}

.breadcrumbs a {
  color: var(--muted);
}

.article-shell {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--surface), transparent);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.article-head {
  padding: 16px 16px 14px;
  border-bottom: 1px solid var(--border);
}

.article-head h1 {
  margin: 0 0 6px;
  letter-spacing: -0.02em;
  font-size: 24px;
}

.article-head p {
  margin: 0;
  color: var(--muted);
}

.article-body {
  padding: 16px;
}

.article-body :is(h2, h3, h4) {
  scroll-margin-top: 90px;
}

.article-body p {
  color: var(--text);
}

.article-body a {
  color: var(--accent-2);
}

.article-body pre {
  border-radius: 12px;
  border: 1px solid var(--border);
  overflow: auto;
  padding: 12px;
  background: rgba(2, 6, 23, 0.6);
}

html[data-theme="light"] .article-body pre {
  background: rgba(2, 6, 23, 0.04);
}

.article-body code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", "Courier New", monospace;
  font-size: 0.92em;
}

.article-body :not(pre) > code {
  padding: 0.15em 0.35em;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
}

.article-body blockquote {
  margin: 16px 0;
  padding: 10px 12px;
  border-left: 4px solid rgba(124, 92, 255, 0.55);
  background: var(--surface);
  border-radius: 10px;
  color: var(--muted);
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: 12px;
  border: 1px solid var(--border);
}

.article-body img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 12px 0;
  border-radius: 12px;
  border: 1px solid var(--border);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.18);
}

.article-body hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 16px 0;
}

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

.article-body th {
  background: var(--surface);
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 16px 0;
  color: var(--muted-2);
}

.footer-inner {
  display: flex;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}

.footer-link {
  color: var(--muted);
}

.footer-sep {
  opacity: 0.6;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 14px;
  align-items: start;
}

@media (max-width: 980px) {
  .two-col {
    grid-template-columns: 1fr;
  }
}

.panel {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--surface), transparent);
  box-shadow: var(--shadow);
  padding: 14px;
}

.panel h2 {
  margin: 0 0 8px;
  font-size: 14px;
  letter-spacing: -0.01em;
}

.list {
  display: grid;
  gap: 10px;
}

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

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