/* ============================================================
   NEXABOT — Design System
   Techno / futuristic. Dark base, electric-blue + cyan neon.
   ============================================================ */

:root {
  /* Accent (overridden by Tweaks) */
  --accent: #3b82f6;        /* electric blue */
  --accent-2: #06b6d4;      /* cyan */
  --accent-soft: rgba(59, 130, 246, 0.14);

  /* Surfaces — cool near-blacks */
  --bg: #060912;
  --bg-2: #0a0f1c;
  --panel: #0d1424;
  --panel-2: #111a2e;
  --line: rgba(120, 150, 210, 0.12);
  --line-strong: rgba(120, 150, 210, 0.22);

  /* Text */
  --fg: #eaf0fb;
  --fg-muted: #9aa8c4;
  --fg-dim: #65718c;

  /* Effects */
  --glow: 0 0 0 1px var(--accent-soft), 0 8px 40px -8px rgba(59,130,246,0.35);
  --anim-scale: 1; /* multiplied into durations by Tweaks (0 = off) */

  --maxw: 1240px;
  --radius: 16px;
  --radius-lg: 24px;

  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Manrope", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: var(--accent); color: #fff; }

a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0;
}

p { margin: 0; }

.wrap { width: min(100% - 48px, var(--maxw)); margin-inline: auto; }

.mono {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

/* Eyebrow label */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent-2);
}
.eyebrow::before {
  content: "";
  width: 22px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-2));
}

/* ---- Buttons ---- */
.btn {
  --b: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 13px 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .25s cubic-bezier(.2,.7,.3,1), box-shadow .25s, background .25s, border-color .25s;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(180deg, var(--accent), color-mix(in oklab, var(--accent), #000 18%));
  color: #fff;
  box-shadow: 0 8px 30px -8px color-mix(in oklab, var(--accent), transparent 45%), inset 0 1px 0 rgba(255,255,255,.25);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 44px -10px color-mix(in oklab, var(--accent), transparent 30%), inset 0 1px 0 rgba(255,255,255,.3);
}
.btn-ghost {
  background: rgba(255,255,255,.03);
  border-color: var(--line-strong);
  color: var(--fg);
  backdrop-filter: blur(6px);
}
.btn-ghost:hover { border-color: var(--accent); background: var(--accent-soft); transform: translateY(-2px); }
.btn-lg { padding: 16px 28px; font-size: 1rem; }

/* ---- Section scaffold ---- */
section { position: relative; }
.section-pad { padding: clamp(80px, 11vw, 150px) 0; }

.section-head { max-width: 760px; margin-bottom: 56px; }
.section-head h2 {
  font-size: clamp(2rem, 4.4vw, 3.6rem);
  margin-top: 18px;
}
.section-head p { color: var(--fg-muted); font-size: 1.12rem; margin-top: 18px; }

/* gradient text */
.grad {
  background: linear-gradient(120deg, var(--fg) 18%, var(--accent) 55%, var(--accent-2) 92%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* hairline grid overlay used in a few places */
.grid-overlay {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 75%);
  pointer-events: none;
}

/* ---- Reveal on scroll (entrance via Web Animations API; base is visible) ---- */
.reveal { opacity: 1; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

/* ---- Card base ---- */
.card {
  position: relative;
  background:
    linear-gradient(180deg, rgba(255,255,255,.035), rgba(255,255,255,0)) ,
    var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

/* Glow border on hover */
.card-glow::after {
  content: "";
  position: absolute; inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(140deg, var(--accent), transparent 40%, transparent 60%, var(--accent-2));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: 0;
  transition: opacity .35s;
  pointer-events: none;
}
.card-glow:hover::after { opacity: 1; }

/* utility */
.kbd-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent-2); box-shadow: 0 0 10px var(--accent-2); }