/* Helix AI — shared design system */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #09090f;
  --bg-card:   #0f0f1a;
  --border:    #1c1c2e;
  --border-md: #28283f;
  --accent:    #8b5cf6;
  --accent-h:  #7c3aed;
  --green:     #22c55e;
  --yellow:    #eab308;
  --red:       #ef4444;
  --text-1:    #f1f0f8;
  --text-2:    #c4c0d8;
  --text-3:    #8880a4;
  --text-4:    #6a6480;
  --text-5:    #3d3852;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text-2);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.6;
}

/* ── Header ── */
header {
  padding: 1.1rem 2.5rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  background: rgba(9,9,15,0.95);
  backdrop-filter: blur(8px);
  z-index: 100;
}
.logo { font-size: 1.2rem; font-weight: 700; color: var(--text-1); letter-spacing: -.02em; text-decoration: none; }
.logo span { color: var(--accent); }
nav { display: flex; align-items: center; gap: 0.25rem; }
nav a {
  color: var(--text-3); text-decoration: none; font-size: .875rem;
  padding: .4rem .75rem; border-radius: 6px; transition: color .15s, background .15s;
}
nav a:hover { color: var(--text-1); background: rgba(255,255,255,.04); }
nav a.active { color: var(--text-1); }
.nav-cta {
  background: var(--accent) !important; color: #fff !important;
  border-radius: 6px; padding: .4rem .9rem !important; margin-left: .5rem;
  transition: background .15s !important;
}
.nav-cta:hover { background: var(--accent-h) !important; }

/* ── Footer ── */
footer {
  padding: 1.25rem 2.5rem;
  border-top: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  font-size: .78rem; color: var(--text-5); flex-wrap: wrap; gap: .5rem;
  margin-top: auto;
}
footer a { color: var(--text-5); text-decoration: none; }
footer a:hover { color: var(--text-4); }
footer .sep { margin: 0 .5rem; }

/* ── Layout helpers ── */
main { flex: 1; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 2rem; }
.page-header { padding: 4rem 0 2.5rem; border-bottom: 1px solid var(--border); margin-bottom: 3rem; }
.page-header .eyebrow { font-size: .75rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); margin-bottom: .75rem; }
.page-header h1 { font-size: clamp(1.75rem,4vw,2.5rem); font-weight: 800; color: var(--text-1); letter-spacing: -.03em; line-height: 1.2; }
.page-header p { font-size: 1.05rem; color: var(--text-3); margin-top: .75rem; max-width: 540px; }

/* ── Buttons ── */
.btn { display: inline-flex; align-items: center; gap: .4rem; padding: .65rem 1.4rem; border-radius: 7px; font-size: .875rem; font-weight: 600; text-decoration: none; transition: all .15s; cursor: pointer; border: none; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-h); }
.btn-outline { background: transparent; color: var(--text-2); border: 1px solid var(--border-md); }
.btn-outline:hover { border-color: var(--accent); color: var(--text-1); }
.btn-sm { padding: .45rem 1rem; font-size: .8rem; }

/* ── Cards ── */
.card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 10px; padding: 1.5rem; transition: border-color .15s; }
.card:hover { border-color: var(--border-md); }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px,1fr)); gap: 1.25rem; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap: 1.25rem; }
.grid-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px,1fr)); gap: 1.25rem; }

/* ── Badge ── */
.badge { display: inline-block; background: rgba(139,92,246,.12); color: var(--accent); border: 1px solid rgba(139,92,246,.25); border-radius: 999px; font-size: .72rem; font-weight: 600; padding: .25rem .75rem; letter-spacing: .05em; text-transform: uppercase; }
.badge-green { background: rgba(34,197,94,.1); color: var(--green); border-color: rgba(34,197,94,.25); }
.badge-yellow { background: rgba(234,179,8,.1); color: var(--yellow); border-color: rgba(234,179,8,.25); }
.badge-red { background: rgba(239,68,68,.1); color: var(--red); border-color: rgba(239,68,68,.25); }

/* ── Code blocks ── */
.code-block { position: relative; background: #060609; border: 1px solid var(--border); border-radius: 8px; padding: 1rem 1.25rem; font-family: "SF Mono","Fira Code","Cascadia Code",monospace; font-size: .85rem; color: #a8a4cc; overflow-x: auto; }
.code-block .copy-btn { position: absolute; top: .6rem; right: .6rem; background: var(--border-md); border: none; color: var(--text-3); font-size: .72rem; padding: .25rem .6rem; border-radius: 4px; cursor: pointer; transition: all .15s; }
.code-block .copy-btn:hover { background: var(--accent); color: #fff; }
.code-block .cmd { color: var(--text-2); }
.code-block .comment { color: var(--text-4); }
.code-block .highlight { color: #c4b5fd; }

/* ── Status dot ── */
.dot { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; display: inline-block; }
.dot-green { background: var(--green); box-shadow: 0 0 6px rgba(34,197,94,.5); }
.dot-yellow { background: var(--yellow); }
.dot-red { background: var(--red); }

/* ── Sidebar layout (docs) ── */
.docs-layout { display: grid; grid-template-columns: 220px 1fr; gap: 3rem; padding: 2.5rem 0 4rem; }
.docs-sidebar { position: sticky; top: 80px; height: fit-content; }
.docs-sidebar .section-title { font-size: .7rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--text-4); margin: 1.5rem 0 .5rem; }
.docs-sidebar .section-title:first-child { margin-top: 0; }
.docs-sidebar a { display: block; font-size: .85rem; color: var(--text-3); text-decoration: none; padding: .3rem .6rem; border-radius: 5px; transition: all .15s; }
.docs-sidebar a:hover { color: var(--text-1); background: rgba(255,255,255,.04); }
.docs-sidebar a.active { color: var(--accent); background: rgba(139,92,246,.08); }
.docs-content h2 { font-size: 1.4rem; font-weight: 700; color: var(--text-1); margin: 2rem 0 .75rem; padding-top: 1rem; border-top: 1px solid var(--border); }
.docs-content h2:first-child { border-top: none; padding-top: 0; margin-top: 0; }
.docs-content h3 { font-size: 1rem; font-weight: 600; color: var(--text-1); margin: 1.5rem 0 .5rem; }
.docs-content p { color: var(--text-3); margin-bottom: 1rem; }
.docs-content ul, .docs-content ol { color: var(--text-3); padding-left: 1.5rem; margin-bottom: 1rem; }
.docs-content li { margin-bottom: .35rem; }
.docs-content .code-block { margin: 1rem 0; }
.docs-content .note { background: rgba(139,92,246,.07); border-left: 3px solid var(--accent); border-radius: 0 6px 6px 0; padding: .75rem 1rem; font-size: .875rem; color: var(--text-3); margin: 1rem 0; }
.inline-code { font-family: "SF Mono","Fira Code",monospace; font-size: .82em; background: rgba(255,255,255,.06); border: 1px solid var(--border); border-radius: 3px; padding: .1em .35em; color: var(--text-2); }

/* ── Responsive ── */
@media (max-width: 768px) {
  header { padding: 1rem 1.25rem; }
  .container { padding: 0 1.25rem; }
  .docs-layout { grid-template-columns: 1fr; }
  .docs-sidebar { display: none; }
  footer { padding: 1rem 1.25rem; }
}