:root {
  --color-bg: #0D0D0D;
  --color-text: #C9C9C9;
  --color-highlight: #F9DA49;
  --color-muted: #666666;
  --color-border: #262626;

  --color-h1: var(--color-highlight);
  --color-h2: #EDEDED;
  --color-h3: #D4D4D4;
  --color-h4: #B5B5B5;
  --color-h5: #989898;
  --color-h6: #7A7A7A;

  /* alternative Farben
  --color-h2: #4DC7C7;
  --color-h3: #B8EDED;
  --color-h4: #99CCCC;
  --color-h5: #7AAEAE;
  --color-h6: #5C8D8D;
  */
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

/* HEADER */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #111111;
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0.75rem 1.5rem;
}

.header-top {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.5rem;
}

.logo-mask {
  width: 40px;
  height: 40px;
  display: inline-block;
  background-color: var(--color-highlight);
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-position: center;
  mask-position: center;
  -webkit-mask-size: contain;
  mask-size: contain;
  flex-shrink: 0;
}

.logo-mask:hover {
  background-color: var(--color-h2);
}

.logo-link,
.site-brand {
  text-decoration: none;
  color: inherit;
  display: inline-flex;
  align-items: center;
}

.site-brand { cursor: pointer; }
.logo-link  { cursor: pointer; }

.header-text {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.site-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-highlight);
}

.site-subtitle {
  font-size: 0.85rem;
  color: var(--color-muted);
}

/* DB SWITCHER */

.header-db-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.db-label {
  font-size: 0.85rem;
  color: var(--color-muted);
}

.db-switcher {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.db-btn {
  border: 1px solid var(--color-border);
  background: #161616;
  color: var(--color-text);
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.db-btn:hover {
  border-color: var(--color-highlight);
}

.db-btn.is-active {
  background: var(--color-highlight);
  color: #000;
  border-color: var(--color-highlight);
}

@media (max-width: 600px) {
  .header-top {
    align-items: flex-start;
  }

  .header-db-row {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* LAYOUT */

.layout {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 1.5rem;
  padding: 1.5rem;
}

.sidebar {
  border-right: 1px solid var(--color-border);
  padding-right: 1rem;
}

.main-content {
  min-height: 60vh;
}

/* SIDEBAR NAV TREE */

.nav-tree ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-group {
  margin-bottom: 0.75rem;
}

.nav-group-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-highlight);
  margin-bottom: 0.25rem;
  display: block;
  text-decoration: none;
}

.nav-group-title:hover {
  text-decoration: underline;
}

.nav-group-items {
  padding-left: 0.5rem;
}

.nav-item {
  margin-bottom: 0.25rem;
}

.nav-item a {
  display: block;
  padding: 0.25rem 0.35rem;
  border-radius: 4px;
  text-decoration: none;
  color: var(--color-text);
  font-size: 0.9rem;
}

.nav-item a:hover {
  background: #151515;
}

/* Markierung: kein Code für aktuelle DB */

.nav-item--no-db a {
  opacity: 0.5;
  font-style: italic;
}

.nav-item--no-db::after {
  content: " · " attr(data-no-examples);
  font-size: 0.75rem;
  color: var(--color-muted);
}


/* CONTENT */

.content h1 {
  color: var(--color-h1);
}

.content h2 {
  color: var(--color-h2);
}

.content h3 {
  color: var(--color-h3);
}

.content h4 {
  color: var(--color-h4);
}

.content h5 {
  color: var(--color-h5);
}

.content h6 {
  color: var(--color-h6);
}

.content h1,
.content h2,
.content h3,
.content h4,
.content h5,
.content h6 {
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
  font-weight: 600;
}

.content a {
  color: var(--color-highlight);
}

/* CODE TABS */

.code-tabs {
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: #111111;
  margin-top: 1rem;
}

.code-tabs-nav {
  display: flex;
  border-bottom: 1px solid var(--color-border);
  overflow-x: auto;
}

.code-tab {
  flex: 0 0 auto;
  padding: 0.5rem 0.75rem;
  font-size: 0.85rem;
  border: none;
  background: none;
  color: var(--color-text);
  cursor: pointer;
  border-bottom: 2px solid transparent;
}

.code-tab.is-active {
  border-color: var(--color-highlight);
  color: var(--color-highlight);
}

.code-panel {
  padding: 0.75rem 1rem 1rem;
}

.code-panel.is-hidden {
  display: none;
}

.codeblock {
  position: relative;
  margin-top: 0.5rem;
  border-radius: 6px;
  border: 1px solid var(--color-border);
  background: #141414;
  overflow: hidden;
}

.codebar {
  position: relative;
  padding: 0.35rem 0.75rem;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.8rem;
  color: var(--color-muted);
}

.codebar .copy-btn {
  position: absolute;
  top: 0.2rem;
  right: 0.5rem;
}

.codeblock pre {
  margin: 0;
  padding: 0.75rem 0.75rem;
  font-size: 0.85rem;
  overflow-x: auto;
}

/* FOOTER */

.site-footer {
  border-top: 1px solid var(--color-border);
  margin-top: 2rem;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0.75rem 1.5rem 1.5rem;
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--color-muted);
}

.footer-inner a {
  color: var(--color-text);
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* RESPONSIVE */

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

  .sidebar {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 1rem;
    margin-bottom: 1rem;
  }
}

/* COPY button */

.copy-btn {
  position: absolute;
  top: 0.4rem;
  right: 0.4rem;
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: 0.2rem 0.6rem;
  font-size: 0.8rem;
  border-radius: 4px;
  cursor: pointer;
  margin-left: auto;
  transition: background 0.2s, color 0.2s;
}

.copy-btn:hover {
  border-color: var(--color-highlight);
  color: var(--color-highlight);
}

.copy-btn.copied {
  color: #000;
  background: var(--color-highlight);
  border-color: var(--color-highlight);
}

/* Langugae Switch */

.lang-switch {
  display: flex;
  gap: 0.5rem;
  margin-left: auto;
  align-items: center;
}

.lang-switch a {
  font-size: 0.85rem;
  color: var(--color-text);
  text-decoration: none;
  opacity: 0.8;
  transition: opacity 0.2s;
}

.lang-switch a:hover {
  opacity: 1;
  color: var(--color-highlight);
}

.lang-switch .active {
  color: var(--color-highlight);
  opacity: 1;
}

/* external Links */

a[href^="http"]:not([href*="sqlfordataengineers.com"]):not([href*="127.0.0.1:111"])::before {
  content: "↗ ";
  font-size: 0.9em;
  opacity: 0.6;
}