:root {
  --primary:   #3F3080;
  --accent:    #655BA7;
  --cta:       #E24F36;
  --secondary: #4495AA;
  --sage:      #A7D7B1;
  --pale:      #FBF4A5;
  --bg:        #0e0e14;
  --fg:        #f4f1ea;
  --fg-muted:  #b8b3c8;
  --border:    #2a2540;

  --font-head: "Open Sans Condensed", "Open Sans", system-ui, sans-serif;
  --font-body: "Open Sans", system-ui, -apple-system, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, monospace;

  --sidebar-w: 240px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
}

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

code { font-family: var(--font-mono); }

h1, h2, h3 {
  font-family: var(--font-head);
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--fg);
  margin-top: 0;
}

.layout {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  min-height: 100vh;
}

/* ---- Sidebar ---- */

.sidebar {
  background: var(--primary);
  color: var(--fg);
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  border-right: 1px solid var(--border);
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--fg) !important;
  text-decoration: none;
}
.sidebar-brand:hover { text-decoration: none; }

.sidebar-logo {
  width: 24px;
  height: 34px;
  object-fit: contain;
}

.sidebar-title {
  font-family: var(--font-head);
  font-size: 22px;
  font-weight: 700;
}

.sidebar-nav { flex: 1; }

.sidebar-group {
  font-family: var(--font-head);
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--sage);
  margin: 16px 0 6px;
}

.sidebar-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.sidebar-link {
  display: block;
  padding: 6px 10px;
  border-radius: 4px;
  color: var(--fg) !important;
  font-size: 14px;
}
.sidebar-link:hover { background: var(--accent); text-decoration: none; }
.sidebar-link-active { background: var(--accent); }

.sidebar-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12px;
  color: var(--fg-muted);
  border-top: 1px solid var(--accent);
  padding-top: 12px;
}
.sidebar-footer a { color: var(--fg-muted); }

/* ---- Main pane ---- */

.main {
  padding: 32px 40px;
  max-width: 1200px;
}

.demo-header h1 { font-size: 32px; margin-bottom: 4px; }
.demo-blurb { color: var(--fg-muted); margin: 0 0 12px; }
.demo-source-link {
  display: inline-block;
  margin-bottom: 24px;
  font-size: 14px;
}

.terminal-frame {
  background: #000;
  border: 1px solid var(--accent);
  border-radius: 6px;
  padding: 12px;
  min-height: 480px;
}
#terminal { width: 100%; height: 100%; min-height: 460px; }

/* ---- Landing ---- */

.hero { margin-bottom: 32px; }
.hero h1 { font-size: 56px; margin-bottom: 8px; color: var(--fg); }
.hero-tagline {
  font-family: var(--font-head);
  font-size: 22px;
  color: var(--secondary);
  margin: 0 0 16px;
}
.hero-ctas { margin-top: 20px; }
.cta {
  display: inline-block;
  padding: 8px 14px;
  margin-right: 10px;
  border-radius: 4px;
  background: var(--cta);
  color: #fff !important;
  font-family: var(--font-head);
}
.cta:hover { background: #c83f28; text-decoration: none; }
.cta-secondary { background: var(--secondary); }
.cta-secondary:hover { background: #357d8e; }

.features h2 {
  font-family: var(--font-head);
  text-transform: uppercase;
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--sage);
  margin: 32px 0 8px;
}
.feature-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
}
.feature-list a {
  display: block;
  padding: 14px 16px;
  background: #16121f;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--fg) !important;
}
.feature-list a:hover { border-color: var(--accent); text-decoration: none; }
.feature-list strong {
  display: block;
  font-family: var(--font-head);
  font-size: 16px;
  margin-bottom: 4px;
}
.feature-list span { color: var(--fg-muted); font-size: 14px; }

/* ---- Responsive ---- */

@media (max-width: 720px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .main { padding: 20px; }
}