/* ============================================================
   VAIR Labs — shared stylesheet
   Digital lab / circuit / crypto theme
   ============================================================ */

:root {
  --bg:        #05060a;
  --bg-soft:   #0a0d16;
  --panel:     rgba(16, 20, 34, 0.66);
  --panel-brd: rgba(120, 160, 220, 0.14);
  --text:      #d7e0f0;
  --text-dim:  #8893ab;
  --white:     #f4f8ff;

  --accent:      #00e5ff;   /* default neon cyan — pages can override */
  --accent-2:    #39ff9e;   /* secondary neon */
  --accent-soft: rgba(0, 229, 255, 0.12);

  --mono: "JetBrains Mono", "SF Mono", "Fira Code", "Consolas", ui-monospace, monospace;
  --sans: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;

  --maxw: 1140px;
  --radius: 14px;
}

/* Per-page accent overrides */
body.theme-ai       { --accent: #00e5ff; --accent-2: #39ff9e; --accent-soft: rgba(0,229,255,.12); }
body.theme-security { --accent: #b06bff; --accent-2: #ff5d9e; --accent-soft: rgba(176,107,255,.14); }

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Fixed animated canvas background */
#bg-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  display: block;
}

/* Vignette / glow overlay above the canvas */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(900px 600px at 78% -8%, var(--accent-soft), transparent 60%),
    radial-gradient(700px 520px at 8% 110%, rgba(57,255,158,.06), transparent 60%),
    linear-gradient(180deg, rgba(5,6,10,.30), rgba(5,6,10,.78));
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ----------------------------- Layout ----------------------------- */
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

section { padding: 92px 0; position: relative; }

.eyebrow {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: "";
  width: 26px; height: 1px;
  background: var(--accent);
  opacity: .7;
}

h1, h2, h3 { color: var(--white); line-height: 1.15; letter-spacing: -0.02em; font-weight: 700; }
h2 { font-size: clamp(28px, 4vw, 40px); margin-bottom: 18px; }
h3 { font-size: 20px; margin-bottom: 10px; }

p.lead { font-size: clamp(16px, 1.6vw, 19px); color: var(--text-dim); max-width: 62ch; }

/* ----------------------------- Nav ----------------------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  background: rgba(5, 6, 10, 0.55);
  border-bottom: 1px solid var(--panel-brd);
}
.nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand {
  display: flex; align-items: center; gap: 12px;
  font-family: var(--mono);
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--white);
  font-size: 17px;
}
.brand .logo {
  width: 30px; height: 30px;
  border-radius: 8px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #04121a;
  font-weight: 800;
  box-shadow: 0 0 18px var(--accent-soft);
}
.brand small { color: var(--accent); font-weight: 400; }

.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a {
  font-size: 14.5px;
  color: var(--text-dim);
  padding: 8px 14px;
  border-radius: 8px;
  transition: color .18s, background .18s;
}
.nav-links a:hover { color: var(--white); background: rgba(255,255,255,.04); }
.nav-links a.active { color: var(--white); }
.nav-links a.active::after {
  content: ""; display: block; height: 2px; margin-top: 4px; border-radius: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}
.nav-cta {
  margin-left: 8px;
  border: 1px solid var(--accent);
  color: var(--white) !important;
  background: var(--accent-soft);
}
.nav-cta:hover { box-shadow: 0 0 16px var(--accent-soft); }

.nav-toggle { display: none; background: none; border: 0; color: var(--white); font-size: 24px; cursor: pointer; }

/* ----------------------------- Buttons ----------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 600;
  padding: 13px 22px;
  border-radius: 10px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform .15s, box-shadow .2s, background .2s;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #03121a;
  box-shadow: 0 8px 30px var(--accent-soft);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 38px var(--accent-soft); }
.btn-ghost { border-color: var(--panel-brd); color: var(--text); }
.btn-ghost:hover { border-color: var(--accent); color: var(--white); }

/* ----------------------------- Hero ----------------------------- */
.hero { padding: 120px 0 84px; }
.hero h1 { font-size: clamp(38px, 6vw, 68px); max-width: 16ch; }
.hero h1 .grad {
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p.lead { margin: 22px 0 34px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.terminal-tag {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent-2);
  margin-bottom: 22px;
  display: inline-flex; gap: 8px; align-items: center;
}
.blink { width: 8px; height: 16px; background: var(--accent-2); display: inline-block; animation: blink 1.1s steps(2) infinite; }
@keyframes blink { 0%,50% { opacity: 1; } 50.01%,100% { opacity: 0; } }

/* ----------------------------- Cards / grid ----------------------------- */
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

.card {
  background: var(--panel);
  border: 1px solid var(--panel-brd);
  border-radius: var(--radius);
  padding: 26px;
  backdrop-filter: blur(8px);
  transition: transform .2s, border-color .2s, box-shadow .2s;
  position: relative;
  overflow: hidden;
}
.card::after {
  content: "";
  position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(180deg, transparent, var(--accent-soft));
  opacity: 0; transition: opacity .25s;
}
.card:hover { transform: translateY(-4px); border-color: var(--accent); }
.card:hover::after { opacity: .5; }
.card .ico {
  width: 46px; height: 46px; border-radius: 11px;
  display: grid; place-items: center;
  background: var(--accent-soft);
  border: 1px solid var(--panel-brd);
  color: var(--accent);
  margin-bottom: 16px;
  font-size: 22px;
}
.card p { color: var(--text-dim); font-size: 15px; }
.card .tag { font-family: var(--mono); font-size: 12px; color: var(--accent-2); }

/* Two-column split */
.split { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }

/* Stat row */
.stats { display: flex; gap: 40px; flex-wrap: wrap; margin-top: 36px; }
.stat .num {
  font-family: var(--mono);
  font-size: 34px; font-weight: 700;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.stat .lbl { font-size: 13px; color: var(--text-dim); letter-spacing: .04em; }

/* Code/terminal panel */
.terminal {
  background: #07090f;
  border: 1px solid var(--panel-brd);
  border-radius: var(--radius);
  font-family: var(--mono);
  font-size: 13.5px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,.45);
}
.terminal .bar {
  display: flex; align-items: center; gap: 7px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--panel-brd);
  color: var(--text-dim);
}
.terminal .bar i { width: 11px; height: 11px; border-radius: 50%; display: inline-block; }
.terminal .bar .r { background: #ff5f56; } .terminal .bar .y { background: #ffbd2e; } .terminal .bar .g { background: #27c93f; }
.terminal .bar span { margin-left: 8px; font-size: 12px; }
.terminal .body { padding: 18px 18px 22px; line-height: 1.9; color: #b9c4da; }
.terminal .body .c { color: var(--text-dim); }
.terminal .body .k { color: var(--accent); }
.terminal .body .v { color: var(--accent-2); }
.terminal .body .p { color: #ff8da3; }

/* List with check ticks */
.ticks { list-style: none; display: grid; gap: 14px; margin-top: 10px; }
.ticks li { display: flex; gap: 12px; color: var(--text-dim); font-size: 15px; }
.ticks li::before {
  content: "▸"; color: var(--accent); font-family: var(--mono); margin-top: 1px;
}

/* CTA band */
.cta-band {
  text-align: center;
  border: 1px solid var(--panel-brd);
  border-radius: 20px;
  padding: 56px 28px;
  background:
    radial-gradient(600px 300px at 50% 0%, var(--accent-soft), transparent 70%),
    var(--panel);
}
.cta-band h2 { margin-bottom: 12px; }
.cta-band .hero-actions { justify-content: center; margin-top: 26px; }

/* ----------------------------- Forms ----------------------------- */
.form { display: grid; gap: 16px; }
.field { display: grid; gap: 7px; }
.field label { font-family: var(--mono); font-size: 12.5px; color: var(--text-dim); letter-spacing: .04em; }
.field input, .field textarea {
  background: #080b12;
  border: 1px solid var(--panel-brd);
  border-radius: 10px;
  color: var(--white);
  padding: 13px 15px;
  font-family: var(--sans);
  font-size: 15px;
  transition: border-color .18s, box-shadow .18s;
}
.field input:focus, .field textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.field textarea { resize: vertical; min-height: 130px; }
.form-note { font-size: 13px; color: var(--text-dim); }

/* ----------------------------- Footer ----------------------------- */
.footer {
  border-top: 1px solid var(--panel-brd);
  padding: 48px 0 40px;
  margin-top: 40px;
  background: rgba(5,6,10,.5);
}
.footer .wrap { display: flex; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.footer .col h4 { color: var(--white); font-size: 14px; margin-bottom: 14px; font-family: var(--mono); letter-spacing: .04em; }
.footer .col a { display: block; color: var(--text-dim); font-size: 14px; padding: 4px 0; }
.footer .col a:hover { color: var(--accent); }
.footer .muted { color: var(--text-dim); font-size: 13px; max-width: 30ch; }
.footer .bottom {
  border-top: 1px solid var(--panel-brd);
  margin-top: 34px; padding-top: 22px;
  font-family: var(--mono); font-size: 12.5px; color: var(--text-dim);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
}

/* ----------------------------- Reveal animation ----------------------------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ----------------------------- Pills ----------------------------- */
.pill-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 22px; }
.pill {
  font-family: var(--mono); font-size: 12.5px;
  color: var(--text-dim);
  border: 1px solid var(--panel-brd);
  background: rgba(255,255,255,.02);
  padding: 7px 14px; border-radius: 999px;
}
.pill b { color: var(--accent); font-weight: 600; }

/* ----------------------------- Responsive ----------------------------- */
@media (max-width: 880px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; gap: 30px; }
  .nav-links {
    position: absolute; top: 68px; left: 0; right: 0;
    flex-direction: column; align-items: stretch;
    background: rgba(7,9,15,.97);
    border-bottom: 1px solid var(--panel-brd);
    padding: 12px; gap: 4px;
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 14px; }
  .nav-toggle { display: block; }
  section { padding: 64px 0; }
}