/* ==========================================================================
   Cortex documentation site
   Brand lifted from the web UI (cortex-spring-boot-autoconfigure .../static/css/cortex.css):
   Solarized palette, Roboto + JetBrains Mono. Dark by default, light via
   prefers-color-scheme. Keep this in visual sync with the shipped UI.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&family=JetBrains+Mono:wght@400;500;700&display=swap');

/* --- Solarized, as fixed reference tones ---------------------------------- */
:root {
  --base03: #002b36;
  --base02: #073642;
  --base01: #586e75;
  --base00: #657b83;
  --base0:  #839496;
  --base1:  #93a1a1;
  --base2:  #eee8d5;
  --base3:  #fdf6e3;
  --yellow:  #b58900;
  --orange:  #cb4b16;
  --red:     #dc322f;
  --magenta: #d33682;
  --violet:  #6c71c4;
  --blue:    #268bd2;
  --cyan:    #2aa198;
  --green:   #859900;
}

/* Dark theme (default) — Solarized Dark. */
:root {
  --bg:        var(--base03);
  --bg-raised: var(--base02);
  --bg-hover:  #0a4653;
  --border:    var(--base01);
  --text:      var(--base0);
  --text-strong: var(--base1);
  --text-heading: var(--base2);
  --muted:     var(--base00);
  --accent:    var(--blue);
  --accent-2:  var(--cyan);
  --code-bg:   #04303b;
}

/* Light theme — Solarized Light, when the viewer prefers light. */
@media (prefers-color-scheme: light) {
  :root {
    --bg:        var(--base3);
    --bg-raised: var(--base2);
    --bg-hover:  #e4ddc7;
    --border:    #cdc8b4;
    --text:      var(--base00);
    --text-strong: var(--base01);
    --text-heading: #073642;
    --muted:     var(--base1);
    --accent:    var(--blue);
    --accent-2:  var(--cyan);
    --code-bg:   #f4eeda;
  }
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: "Roboto", system-ui, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6 {
  font-family: "Roboto", sans-serif;
  color: var(--text-heading);
  line-height: 1.25;
  font-weight: 700;
}

pre, code, kbd, samp {
  font-family: "JetBrains Mono", ui-monospace, monospace;
}

a { color: var(--accent); text-decoration: none; transition: color 200ms ease; }
a:hover { color: var(--accent-2); }

/* --- Layout width --------------------------------------------------------- */
.container { width: 100%; max-width: 60rem; margin: 0 auto; padding: 0 1.25rem; }
.container-wide { max-width: 72rem; }

/* --- Navbar --------------------------------------------------------------- */
header.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: var(--bg-raised);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(6px);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: 72rem;
  margin: 0 auto;
  padding: 0.6rem 1.25rem;
}

.navbar-brand {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--accent);
  white-space: nowrap;
}
.navbar-brand:hover { color: var(--accent); }
.navbar-brand .tld { color: var(--muted); font-weight: 500; }

.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.nav-links a {
  color: var(--text);
  font-weight: 500;
  font-size: 0.9rem;
}
.nav-links a:hover, .nav-links a.active { color: var(--accent); }
.nav-links a.ext::after { content: " \2197"; color: var(--muted); font-size: 0.8em; }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  font-size: 1.1rem;
  line-height: 1;
  padding: 0.3rem 0.55rem;
  cursor: pointer;
}

@media (max-width: 720px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background-color: var(--bg-raised);
    border-bottom: 1px solid var(--border);
    padding: 0.5rem 1.25rem 1rem;
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links li { width: 100%; }
  .nav-links a { display: block; padding: 0.6rem 0; width: 100%; }
}

/* --- Hero ----------------------------------------------------------------- */
.hero {
  padding: 4.5rem 0 3rem;
  border-bottom: 1px solid var(--border);
  background:
    radial-gradient(60rem 30rem at 70% -10%, rgba(38, 139, 210, 0.12), transparent 60%),
    radial-gradient(50rem 25rem at 10% 0%, rgba(42, 161, 152, 0.10), transparent 55%);
}
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  letter-spacing: 0.02em;
}
.hero .wordmark { color: var(--accent); letter-spacing: 0.1em; }
.hero .tagline {
  margin-top: 1.1rem;
  font-size: clamp(1.05rem, 2.2vw, 1.3rem);
  color: var(--text-strong);
  max-width: 46rem;
}
.hero .badges { margin-top: 1.5rem; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.hero .badges img { height: 20px; }
.cta-row { margin-top: 2rem; display: flex; flex-wrap: wrap; gap: 0.75rem; }

.btn {
  display: inline-block;
  padding: 0.6rem 1.2rem;
  border-radius: 5px;
  font-weight: 700;
  font-size: 0.9rem;
  border: 1px solid var(--border);
  cursor: pointer;
}
.btn-primary { background-color: var(--accent); color: var(--base03); border-color: var(--accent); }
.btn-primary:hover { background-color: var(--accent-2); border-color: var(--accent-2); color: var(--base03); }
.btn-ghost { color: var(--text); background: transparent; }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* --- Sections ------------------------------------------------------------- */
section { padding: 3rem 0; }
section.alt { background-color: var(--bg-raised); border-block: 1px solid var(--border); }
.section-title { font-size: 1.6rem; margin-bottom: 0.5rem; }
.section-lead { color: var(--muted); margin-bottom: 2rem; max-width: 48rem; }

/* --- Feature grid --------------------------------------------------------- */
.grid { display: grid; gap: 1rem; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); }

.card {
  background-color: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.25rem 1.4rem;
  transition: border-color 200ms ease, transform 200ms ease;
}
.card:hover { border-color: var(--accent); transform: translateY(-2px); }
.card h3 { font-size: 1.05rem; color: var(--text-strong); margin-bottom: 0.4rem; }
.card h3 .tag { color: var(--accent-2); }
.card p { font-size: 0.9rem; color: var(--text); }

/* --- Docs page layout ----------------------------------------------------- */
.doc { padding: 2.5rem 0 4rem; }
.doc h1 { font-size: 2rem; margin-bottom: 0.4rem; }
.doc .lead { color: var(--muted); font-size: 1.05rem; margin-bottom: 2.2rem; }
.doc h2 {
  font-size: 1.4rem;
  margin: 2.6rem 0 0.9rem;
  padding-top: 0.6rem;
  border-top: 1px solid var(--border);
  color: var(--text-heading);
}
.doc h3 { font-size: 1.1rem; margin: 1.8rem 0 0.6rem; color: var(--text-strong); }
.doc p { margin: 0.7rem 0; }
.doc ul, .doc ol { margin: 0.7rem 0 0.7rem 1.4rem; }
.doc li { margin: 0.35rem 0; }
.doc strong { color: var(--text-strong); }

/* Anchored headings */
.doc h2, .doc h3 { scroll-margin-top: 4.5rem; }

/* --- Inline code + code blocks -------------------------------------------- */
code {
  background-color: var(--code-bg);
  color: var(--text-strong);
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
  font-size: 0.85em;
}
.code-block { position: relative; margin: 1rem 0; }
.code-block pre {
  background-color: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem 1.1rem;
  overflow-x: auto;
  font-size: 0.82rem;
  line-height: 1.55;
}
.code-block pre code { background: none; padding: 0; color: var(--text); font-size: inherit; }
.code-lang {
  position: absolute;
  top: 0;
  left: 1rem;
  transform: translateY(-50%);
  background-color: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 0.05rem 0.5rem;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.65rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
}
.copy-btn {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  background-color: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--muted);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.65rem;
  letter-spacing: 0.05em;
  padding: 0.2rem 0.5rem;
  cursor: pointer;
  opacity: 0;
  transition: opacity 200ms ease, color 200ms ease;
}
.code-block:hover .copy-btn { opacity: 1; }
.copy-btn:hover { color: var(--accent); border-color: var(--accent); }
.copy-btn.copied { color: var(--green); border-color: var(--green); }

/* --- Tables --------------------------------------------------------------- */
.table-wrap { overflow-x: auto; margin: 1.2rem 0; border: 1px solid var(--border); border-radius: 6px; }
table { border-collapse: collapse; width: 100%; font-size: 0.85rem; }
th, td { text-align: left; padding: 0.6rem 0.9rem; border-bottom: 1px solid var(--border); vertical-align: top; }
th { background-color: var(--bg-raised); color: var(--text-strong); font-weight: 700; white-space: nowrap; }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background-color: var(--bg-hover); }
td code, th code { white-space: nowrap; }

/* --- Callouts ------------------------------------------------------------- */
.callout {
  margin: 1.4rem 0;
  padding: 0.9rem 1.1rem;
  border-left: 3px solid var(--accent-2);
  background-color: var(--bg-raised);
  border-radius: 0 5px 5px 0;
  font-size: 0.9rem;
}
.callout strong:first-child { color: var(--accent-2); }
.callout.warn { border-left-color: var(--orange); }
.callout.warn strong:first-child { color: var(--orange); }
.callout.note { border-left-color: var(--violet); }
.callout.note strong:first-child { color: var(--violet); }

/* --- Steps ---------------------------------------------------------------- */
.steps { list-style: none; counter-reset: step; margin-left: 0; }
.steps > li {
  position: relative;
  padding-left: 2.6rem;
  margin: 1.4rem 0;
  min-height: 1.8rem;
}
.steps > li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 1.8rem;
  height: 1.8rem;
  border-radius: 50%;
  background-color: var(--accent);
  color: var(--base03);
  font-family: "JetBrains Mono", monospace;
  font-weight: 700;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.steps > li h3 { margin-top: 0.1rem; }

/* --- Diagrams / figures --------------------------------------------------- */
figure { margin: 1.6rem 0; }
figure svg, figure img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
}
figure.screenshot img {
  border: 1px solid var(--border);
  border-radius: 6px;
}
figcaption { margin-top: 0.6rem; text-align: center; font-size: 0.8rem; color: var(--muted); }

/* --- Pills / meta --------------------------------------------------------- */
.pill-row { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 1rem 0; }
.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.78rem;
  background-color: var(--bg-raised);
}
.pill b { color: var(--text-strong); }

/* --- Footer --------------------------------------------------------------- */
footer.site-footer {
  border-top: 1px solid var(--border);
  background-color: var(--bg-raised);
  padding: 2.5rem 0;
  font-size: 0.85rem;
  color: var(--muted);
}
.footer-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1.5rem; }
.footer-inner a { color: var(--text); }
.footer-inner a:hover { color: var(--accent); }
.footer-links { display: flex; flex-wrap: wrap; gap: 1.25rem; }

/* --- Utility -------------------------------------------------------------- */
.text-muted { color: var(--muted); }
.mono { font-family: "JetBrains Mono", monospace; }
.center { text-align: center; }
.mt-2 { margin-top: 2rem; }