/* NixOS Template — Gruvbox Dark
 *
 * Palette: https://github.com/morhetz/gruvbox
 * Uses the "hard" dark background (bg0_h) with the standard bright accents.
 */

:root {
  /* Gruvbox dark backgrounds */
  --bg:        #1d2021;  /* bg0_h */
  --bg-pane:   #282828;  /* bg0   */
  --bg-code:   #32302f;  /* bg0_s */
  --bg-soft:   #3c3836;  /* bg1   */
  --border:    #3c3836;  /* bg1   */
  --border-hi: #504945;  /* bg2   */

  /* Gruvbox dark foregrounds */
  --fg:        #ebdbb2;  /* fg1   */
  --fg-dim:    #d5c4a1;  /* fg2   */
  --muted:     #928374;  /* gray  */

  /* Gruvbox bright accents */
  --red:       #fb4934;
  --green:     #b8bb26;
  --yellow:    #fabd2f;
  --blue:      #83a598;
  --purple:    #d3869b;
  --aqua:      #8ec07c;
  --orange:    #fe8019;

  /* Semantic roles */
  --accent:    var(--yellow);
  --accent-2:  var(--aqua);
  --link:      var(--blue);

  --sidebar-w: 290px;
  --maxw:      940px;
  --radius:    4px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, "Cascadia Code", Menlo, Consolas, monospace;
  font-size: 14.5px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

a { color: var(--link); text-decoration: none; }
a:hover { color: var(--aqua); text-decoration: underline; }

::selection { background: var(--border-hi); color: var(--fg); }

/* ---------- Sidebar ---------- */
.sidebar {
  position: fixed; top: 0; left: 0; bottom: 0;
  width: var(--sidebar-w);
  background: var(--bg-pane);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  padding: 1.1rem 0.9rem 2rem;
  display: flex; flex-direction: column;
  z-index: 20;
}
.sidebar::-webkit-scrollbar { width: 8px; }
.sidebar::-webkit-scrollbar-track { background: var(--bg-pane); }
.sidebar::-webkit-scrollbar-thumb { background: var(--border-hi); border-radius: 4px; }
.sidebar::-webkit-scrollbar-thumb:hover { background: var(--muted); }

.term-bar {
  display: flex; align-items: center; gap: 0.4rem;
  padding: 0.2rem 0.4rem 0.7rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 0.8rem;
  color: var(--muted); font-size: 0.72rem;
}
.term-bar .dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.dot.r { background: var(--red); }
.dot.y { background: var(--yellow); }
.dot.g { background: var(--green); }
.term-bar .ttl { margin-left: auto; letter-spacing: 0.08em; }

.brand { padding: 0 0.4rem 0.9rem; }
.brand-name {
  display: block; color: var(--yellow); font-weight: 700;
  font-size: 1.06rem; letter-spacing: 0.02em;
}
.brand-name::before { content: "user@nixos:~$ "; color: var(--green); font-weight: 400; }
.brand-name:hover { text-decoration: none; color: var(--orange); }
.brand-tag { color: var(--muted); font-size: 0.74rem; margin: 0.35rem 0 0; }
.cursor {
  display: inline-block; width: 0.6ch; height: 1.05em; transform: translateY(0.18em);
  background: var(--yellow); margin-left: 2px;
  animation: blink 1.1s steps(2) infinite;
}
@keyframes blink { 50% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .cursor { animation: none; } }

.nav { flex: 1; margin-top: 0.4rem; }
.nav-heading {
  color: var(--orange); text-transform: uppercase;
  font-size: 0.66rem; letter-spacing: 0.18em; margin: 1.3rem 0.5rem 0.45rem;
}
.nav-heading::before { content: "// "; color: var(--muted); }
.nav-list { list-style: none; margin: 0; padding: 0; }
.nav-list a {
  display: block; color: var(--fg-dim); padding: 0.3rem 0.55rem;
  border-left: 2px solid transparent; border-radius: var(--radius);
  font-size: 0.85rem; line-height: 1.45;
}
.nav-list a::before { content: "› "; color: var(--muted); }
.nav-list a:hover {
  background: var(--bg-soft); color: var(--yellow); text-decoration: none;
}
.nav-list a:hover::before { content: "$ "; color: var(--green); }
.nav-list a.active {
  background: var(--bg-soft); border-left-color: var(--yellow);
  color: var(--yellow);
}
.nav-list a.active::before { content: "$ "; color: var(--green); }
.nav-docs a { color: var(--muted); font-size: 0.8rem; }
.nav-docs a:hover, .nav-docs a.active { color: var(--aqua); }

.sidebar-foot {
  margin-top: 1.1rem; padding-top: 0.9rem;
  border-top: 1px solid var(--border); font-size: 0.8rem;
}
.sidebar-foot a { color: var(--green); }

/* ---------- Content ---------- */
.content {
  margin-left: var(--sidebar-w); padding: 2.4rem 3rem; min-height: 100vh;
  display: flex; flex-direction: column;
}
.prose { max-width: var(--maxw); width: 100%; flex: 1; }

.page-title {
  color: var(--yellow);
  border-bottom: 1px solid var(--border-hi); padding-bottom: 0.4rem; margin-top: 0;
}
.prose h1, .prose h2, .prose h3, .prose h4 { line-height: 1.3; margin-top: 1.9rem; }
.prose h1 { color: var(--yellow); }
.prose h2 { color: var(--aqua); border-bottom: 1px solid var(--border); padding-bottom: 0.3rem; }
.prose h3 { color: var(--green); }
.prose h4 { color: var(--fg-dim); }
.prose h2::before, .prose h3::before { content: "# "; color: var(--muted); }
.prose strong { color: var(--orange); }
.prose hr { border: none; border-top: 1px solid var(--border-hi); margin: 2rem 0; }
.prose blockquote {
  margin: 1rem 0; padding: 0.5rem 1rem; border-left: 3px solid var(--yellow);
  background: var(--bg-pane); color: var(--fg-dim); border-radius: 0 var(--radius) var(--radius) 0;
}
.prose blockquote strong { color: var(--yellow); }
.prose ul, .prose ol { padding-left: 1.4rem; }
.prose li { margin: 0.25rem 0; }
.prose li::marker { color: var(--muted); }

code {
  font-family: inherit; background: var(--bg-code); border: 1px solid var(--border);
  border-radius: 3px; padding: 0.08rem 0.34rem; font-size: 0.85em; color: var(--orange);
}
pre {
  background: var(--bg-code); border: 1px solid var(--border-hi); border-radius: var(--radius);
  padding: 1rem 1.1rem; overflow-x: auto; line-height: 1.55;
}
pre code { background: none; border: none; padding: 0; color: var(--fg); font-size: 0.85rem; }
.highlight { margin: 1rem 0; } .highlight pre { margin: 0; }

.prose table {
  border-collapse: collapse; width: 100%; margin: 1rem 0; font-size: 0.84rem;
  display: block; overflow-x: auto;
}
.prose th, .prose td { border: 1px solid var(--border-hi); padding: 0.5rem 0.75rem; text-align: left; }
.prose th { background: var(--bg-soft); color: var(--yellow); }
.prose tbody tr:nth-child(even) { background: var(--bg-pane); }
.prose img { max-width: 100%; border: 1px solid var(--border-hi); border-radius: var(--radius); }

.site-foot {
  margin-top: 3rem; padding-top: 1.2rem; border-top: 1px solid var(--border);
  color: var(--muted); font-size: 0.8rem; display: flex; gap: 0.6rem;
  max-width: var(--maxw); flex-wrap: wrap;
}
.site-foot a { color: var(--green); }

/* ---------- Home / front page ---------- */
.hero {
  border: 1px solid var(--border-hi); border-radius: var(--radius); padding: 1.4rem 1.6rem;
  background: var(--bg-pane); margin-bottom: 1.6rem;
}
.hero pre { background: transparent; border: none; padding: 0; color: var(--yellow); }
.hero h1 { margin: 0 0 0.4rem; }

.btn-row { display: flex; flex-wrap: wrap; gap: 0.7rem; margin: 1.2rem 0; }
.btn {
  display: inline-block; border: 1px solid var(--border-hi); color: var(--yellow);
  padding: 0.45rem 0.9rem; border-radius: var(--radius); font-weight: 600;
  letter-spacing: 0.03em; background: var(--bg-soft);
}
.btn::before { content: "[ "; color: var(--muted); }
.btn::after { content: " ]"; color: var(--muted); }
.btn:hover { background: var(--yellow); color: var(--bg); text-decoration: none; border-color: var(--yellow); }
.btn:hover::before, .btn:hover::after { color: var(--bg); }
.btn-primary { border-color: var(--yellow); }

.feature-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 0.8rem; margin: 1rem 0 1.6rem;
}
.feature-grid .card {
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 0.8rem 0.9rem; background: var(--bg-pane);
}
.feature-grid .card:hover { border-color: var(--border-hi); }
.feature-grid .card b { color: var(--aqua); }
.feature-grid .card p { margin: 0.3rem 0 0; color: var(--fg-dim); font-size: 0.84rem; }

.shot-gallery {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 0.9rem; margin: 1rem 0;
}
.shot-gallery figure { margin: 0; }
.shot-gallery figcaption { color: var(--muted); font-size: 0.78rem; margin-top: 0.3rem; }

video { max-width: 100%; border: 1px solid var(--border-hi); border-radius: var(--radius); }

/* ---------- Code showcase ---------- */
.code-showcase { margin: 1.4rem 0; }
.code-card {
  border: 1px solid var(--border-hi); border-radius: var(--radius);
  background: var(--bg-code); margin: 1.2rem 0; overflow: hidden;
}
.code-card > .code-head {
  display: flex; align-items: center; gap: 0.5rem;
  background: var(--bg-soft); border-bottom: 1px solid var(--border-hi);
  padding: 0.45rem 0.85rem; font-size: 0.78rem; color: var(--fg-dim);
}
.code-card > .code-head .path { color: var(--aqua); }
.code-card > .code-head .tag {
  margin-left: auto; color: var(--muted); text-transform: uppercase;
  letter-spacing: 0.1em; font-size: 0.68rem;
}
.code-card .highlight, .code-card pre { margin: 0; border: none; border-radius: 0; }
.code-note { color: var(--fg-dim); font-size: 0.85rem; margin: 0.5rem 0 0; }

/* Two-column compare (before / after) */
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 0.9rem; margin: 1rem 0; }
.compare .bad  { border-color: var(--red); }
.compare .good { border-color: var(--green); }
.compare .bad  > .code-head .path { color: var(--red); }
.compare .good > .code-head .path { color: var(--green); }
@media (max-width: 820px) { .compare { grid-template-columns: 1fr; } }

/* Callouts */
.note, .warn {
  border-left: 3px solid var(--blue); background: var(--bg-pane);
  padding: 0.7rem 1rem; margin: 1rem 0; border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 0.88rem;
}
.warn { border-left-color: var(--orange); }
.note b { color: var(--blue); }
.warn b { color: var(--orange); }

/* Step list for Get Started */
.steps { list-style: none; counter-reset: step; padding: 0; margin: 1.2rem 0; }
.steps > li {
  counter-increment: step; position: relative;
  padding: 0 0 0.4rem 2.4rem; margin: 0 0 1.4rem;
  border-left: 1px solid var(--border-hi); margin-left: 0.85rem;
}
.steps > li:last-child { border-left-color: transparent; }
.steps > li::before {
  content: counter(step);
  position: absolute; left: -0.85rem; top: 0;
  width: 1.7rem; height: 1.7rem; line-height: 1.7rem; text-align: center;
  background: var(--bg-soft); color: var(--yellow);
  border: 1px solid var(--border-hi); border-radius: 50%;
  font-size: 0.8rem; font-weight: 700;
}
.steps > li > h3 { margin: 0 0 0.4rem; color: var(--yellow); }
.steps > li > h3::before { content: none; }

/* ---------- Mobile ---------- */
.nav-toggle-btn {
  display: none; position: fixed; top: 0.8rem; right: 0.8rem; z-index: 30;
  background: var(--bg-soft); color: var(--yellow); border: 1px solid var(--border-hi);
  border-radius: var(--radius); padding: 0.4rem 0.7rem; cursor: pointer;
  font-family: inherit; font-size: 0.85rem;
}
@media (max-width: 900px) {
  .nav-toggle-btn { display: inline-block; }
  .sidebar { transform: translateX(-100%); transition: transform 0.2s ease; }
  .nav-toggle:checked ~ .sidebar { transform: translateX(0); }
  .content { margin-left: 0; padding: 4rem 1.2rem 2rem; }
}

/* ---------- Rouge syntax highlighting (Gruvbox dark) ---------- */
.highlight .c, .highlight .c1, .highlight .cm, .highlight .cd, .highlight .cs { color: #928374; font-style: italic; }
.highlight .k, .highlight .kd, .highlight .kn, .highlight .kr, .highlight .kv { color: #fb4934; }
.highlight .kc { color: #d3869b; }
.highlight .kt { color: #fabd2f; }
.highlight .s, .highlight .s1, .highlight .s2, .highlight .sb, .highlight .sc,
.highlight .sd, .highlight .sh, .highlight .si, .highlight .sx, .highlight .sr { color: #b8bb26; }
.highlight .se { color: #fe8019; }
.highlight .nb, .highlight .bp { color: #fabd2f; }
.highlight .nf, .highlight .nx { color: #b8bb26; }
.highlight .nc, .highlight .nn { color: #8ec07c; }
.highlight .nv, .highlight .vg, .highlight .vi { color: #83a598; }
.highlight .no { color: #d3869b; }
.highlight .mi, .highlight .mf, .highlight .il, .highlight .mh, .highlight .mo, .highlight .m { color: #d3869b; }
.highlight .o, .highlight .ow { color: #fe8019; }
.highlight .p { color: #ebdbb2; }
.highlight .nt { color: #fb4934; }
.highlight .na { color: #83a598; }
.highlight .gp { color: #928374; }
.highlight .gd { color: #fb4934; background: rgba(251, 73, 52, 0.1); }
.highlight .gi { color: #b8bb26; background: rgba(184, 187, 38, 0.1); }
.highlight .gh { color: #8ec07c; font-weight: bold; }
.highlight .err { color: #fb4934; background: none; }