/* ============================================================
   ADAM BEZANCE — Agent Architect
   Design System: Obsidian & Electric Blue
   ============================================================ */

:root {
  /* Colour tokens */
  --ob-canvas:    #050508;
  --ob-base:      #0A0A12;
  --ob-surface:   #0F0F18;
  --ob-elevated:  #161625;

  --ob-blue:      #1D6FE8;
  --ob-blue-lt:   #7BB3FF;
  --ob-blue-dim:  rgba(29,111,232,0.14);
  --ob-blue-brd:  rgba(29,111,232,0.32);

  --ob-border:    rgba(255,255,255,0.06);
  --ob-border-md: rgba(255,255,255,0.10);
  --ob-border-st: rgba(255,255,255,0.16);

  --ob-fg:        #FFFFFF;
  --ob-fg-2:      #7A7A96;
  --ob-fg-3:      #3E3E58;

  --ob-gold:      #FFD700;
  --ob-gold-bg:   rgba(255,215,0,0.08);
  --ob-gold-brd:  rgba(255,215,0,0.22);

  --ob-glow:            0 4px 28px rgba(29,111,232,0.50);
  --ob-glow-card:       0 0 0 1px rgba(255,255,255,0.05), 0 8px 28px rgba(0,0,0,0.50);
  --ob-glow-card-hover: 0 0 0 1px rgba(29,111,232,0.35), 0 12px 36px rgba(0,0,0,0.55), 0 0 20px rgba(29,111,232,0.22);

  /* Spacing */
  --sp-1: 4px;  --sp-2: 8px;  --sp-3: 12px; --sp-4: 16px;
  --sp-6: 24px; --sp-8: 32px; --sp-12: 48px; --sp-16: 64px;
  --sp-section: 96px;

  /* Radius */
  --r-sm: 6px; --r-md: 10px; --r-lg: 14px; --r-xl: 20px; --r-full: 9999px;

  /* Typography */
  --font: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Helvetica Neue', Arial, sans-serif;
  --mono: 'Cascadia Code', 'Cascadia Mono', Consolas, 'Courier New', monospace;

  /* Nav */
  --nav-h: 68px;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--ob-canvas);
  color: var(--ob-fg);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: var(--font); cursor: pointer; border: none; background: none; }

/* ── Nav ── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  display: flex; align-items: center;
  padding: 0 40px;
  transition: background 220ms cubic-bezier(0.4,0,0.2,1), border-color 220ms cubic-bezier(0.4,0,0.2,1), backdrop-filter 220ms;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(5,5,8,0.90);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom-color: var(--ob-border);
}
.nav-inner {
  max-width: 1400px; width: 100%; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--sp-8);
}
.nav-logo {
  display: flex; align-items: center; gap: var(--sp-3);
  flex-shrink: 0;
}
.nav-mark {
  width: 36px; height: 36px; border-radius: 8px;
  background: var(--ob-blue);
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 800; color: #fff;
  box-shadow: var(--ob-glow);
  flex-shrink: 0;
}
.nav-name {
  font-size: 15px; font-weight: 700; color: var(--ob-fg);
  line-height: 1.1;
}
.nav-subtitle {
  font-size: 10px; font-weight: 600; color: var(--ob-fg-2);
  text-transform: uppercase; letter-spacing: 0.1em;
}
.nav-links {
  display: flex; align-items: center; gap: var(--sp-6);
  list-style: none;
}
.nav-links a {
  font-size: 14px; font-weight: 500; color: var(--ob-fg-2);
  transition: color 220ms cubic-bezier(0.4,0,0.2,1);
}
.nav-links a:hover, .nav-links a.active { color: var(--ob-fg); }
.nav-cta {
  display: inline-flex; align-items: center;
  padding: 8px 20px;
  background: var(--ob-blue);
  color: #fff;
  font-size: 14px; font-weight: 600;
  border-radius: var(--r-full);
  box-shadow: var(--ob-glow);
  transition: opacity 220ms cubic-bezier(0.4,0,0.2,1), transform 220ms cubic-bezier(0.4,0,0.2,1);
  white-space: nowrap;
}
.nav-cta:hover { opacity: 0.88; transform: translateY(-1px); }

.nav-mobile-toggle {
  display: none; flex-direction: column; gap: 5px;
  width: 24px; cursor: pointer;
}
.nav-mobile-toggle span {
  display: block; height: 2px; background: var(--ob-fg);
  border-radius: 2px;
  transition: all 220ms cubic-bezier(0.4,0,0.2,1);
}

/* ── Footer ── */
.footer {
  background: var(--ob-base);
  border-top: 1px solid var(--ob-border);
  padding: var(--sp-12) 40px;
}
.footer-inner {
  max-width: 1400px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: var(--sp-6);
}
.footer-logo { display: flex; align-items: center; gap: var(--sp-3); }
.footer-tagline { font-size: 14px; color: var(--ob-fg-2); }
.footer-links { display: flex; align-items: center; gap: var(--sp-6); }
.footer-links a {
  font-size: 14px; color: var(--ob-fg-2);
  transition: color 220ms cubic-bezier(0.4,0,0.2,1);
}
.footer-links a:hover { color: var(--ob-fg); }
.footer-copy { font-size: 13px; color: var(--ob-fg-3); }

/* ── Layout helpers ── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 40px; }
.container-narrow { max-width: 720px; margin: 0 auto; padding: 0 40px; }
.section { padding: var(--sp-section) 0; }
.section-alt { background: var(--ob-base); }

/* ── Typography helpers ── */
.eyebrow {
  display: inline-flex; align-items: center; gap: var(--sp-2);
  font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.12em;
  color: var(--ob-blue-lt);
}
.section-label {
  font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.12em;
  color: var(--ob-blue-lt); margin-bottom: var(--sp-3);
}
.section-title {
  font-size: clamp(32px,3.5vw,48px); font-weight: 800;
  line-height: 1.1; letter-spacing: -0.03em;
  color: var(--ob-fg);
}
.section-body {
  font-size: 17px; color: var(--ob-fg-2); line-height: 1.65;
  max-width: 600px;
}

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; gap: var(--sp-2);
  padding: 12px 24px;
  font-size: 15px; font-weight: 600;
  border-radius: var(--r-md);
  transition: all 220ms cubic-bezier(0.4,0,0.2,1);
  cursor: pointer;
}
.btn-primary {
  background: var(--ob-blue); color: #fff;
  box-shadow: var(--ob-glow);
}
.btn-primary:hover { opacity: 0.88; transform: translateY(-1px); }
.btn-secondary {
  background: rgba(255,255,255,0.04); color: var(--ob-fg);
  border: 1px solid var(--ob-border-st);
}
.btn-secondary:hover { border-color: var(--ob-blue); color: var(--ob-blue-lt); }
.btn-lg { padding: 14px 32px; font-size: 16px; }

/* ── Pills / badges ── */
.pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 12px;
  font-size: 12px; font-weight: 600; letter-spacing: 0.03em;
  border-radius: var(--r-full);
  border: 1px solid;
}
.pill-blue {
  background: var(--ob-blue-dim); color: var(--ob-blue-lt);
  border-color: var(--ob-blue-brd);
}
.pill-neutral {
  background: rgba(255,255,255,0.04); color: var(--ob-fg-2);
  border-color: var(--ob-border-md);
}
.pill-gold {
  background: var(--ob-gold-bg); color: var(--ob-gold);
  border-color: var(--ob-gold-brd);
}

/* ── Cards ── */
.card {
  background: var(--ob-surface);
  border: 1px solid var(--ob-border);
  border-radius: var(--r-lg);
  box-shadow: var(--ob-glow-card);
  transition: all 220ms cubic-bezier(0.4,0,0.2,1);
  overflow: hidden;
}
.card:hover {
  transform: translateY(-3px);
  border-color: var(--ob-blue-brd);
  box-shadow: var(--ob-glow-card-hover);
}
.card-body { padding: var(--sp-6); }
.card-img {
  aspect-ratio: 16/9; background: var(--ob-elevated);
  display: flex; align-items: center; justify-content: center;
  color: var(--ob-fg-3); font-size: 13px;
}
.card-eyebrow {
  font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--ob-blue-lt); margin-bottom: var(--sp-2);
}
.card-title {
  font-size: 16px; font-weight: 700; line-height: 1.3; letter-spacing: -0.015em;
  color: var(--ob-fg); margin-bottom: var(--sp-2);
}
.card-title-lg {
  font-size: 18px; font-weight: 700; line-height: 1.3; letter-spacing: -0.02em;
}
.card-body-text { font-size: 14px; color: var(--ob-fg-2); line-height: 1.55; }
.card-meta {
  font-size: 11px; font-weight: 500; color: var(--ob-fg-3);
  text-transform: uppercase; letter-spacing: 0.08em;
  margin-top: var(--sp-4);
}
.card-footer {
  padding: var(--sp-4) var(--sp-6);
  border-top: 1px solid var(--ob-border);
  display: flex; align-items: center; justify-content: space-between;
}
.card-link {
  font-size: 13px; font-weight: 600; color: var(--ob-blue-lt);
  display: inline-flex; align-items: center; gap: 6px;
  transition: gap 220ms cubic-bezier(0.4,0,0.2,1);
}
.card-link:hover { gap: 10px; }

/* ── Divider ── */
.divider {
  height: 1px; background: var(--ob-border);
  margin: var(--sp-8) 0;
}

/* ── Page header (inner pages) ── */
.page-header {
  padding: calc(var(--nav-h) + var(--sp-12)) 0 var(--sp-12);
  background: var(--ob-canvas);
}
.page-header-inner { max-width: 1200px; margin: 0 auto; padding: 0 40px; }
.page-header-label {
  font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.12em;
  color: var(--ob-blue-lt); margin-bottom: var(--sp-3);
}
.page-header-title {
  font-size: clamp(40px,5vw,64px); font-weight: 800;
  line-height: 1.0; letter-spacing: -0.04em;
  margin-bottom: var(--sp-4);
}
.page-header-body {
  font-size: 18px; color: var(--ob-fg-2); line-height: 1.6;
  max-width: 640px;
}

/* ── Scroll reveal — pure CSS, no JS dependency ── */
@media (prefers-reduced-motion: no-preference) {
  @keyframes revealUp {
    from { opacity: 0; transform: translateY(28px); }
    to   { opacity: 1; transform: translateY(0); }
  }
  .reveal {
    animation: revealUp 600ms cubic-bezier(0,0,0.2,1) both;
  }
  .reveal-delay-1 { animation-delay: 100ms; }
  .reveal-delay-2 { animation-delay: 200ms; }
  .reveal-delay-3 { animation-delay: 320ms; }
  /* Legacy JS class support — no longer needed but harmless */
  .reveal.visible { animation: none; opacity: 1; transform: none; }
}

/* ── CTA band ── */
.cta-band {
  background: var(--ob-surface);
  border: 1px solid var(--ob-border);
  border-radius: var(--r-xl);
  padding: var(--sp-12) var(--sp-12);
  text-align: center;
  box-shadow: var(--ob-glow-card);
}
.cta-band h2 { font-size: clamp(28px,3vw,40px); font-weight: 800; letter-spacing: -0.03em; margin-bottom: var(--sp-3); }
.cta-band p { font-size: 17px; color: var(--ob-fg-2); margin-bottom: var(--sp-8); }
.cta-band .btn-row { display: flex; align-items: center; justify-content: center; gap: var(--sp-3); flex-wrap: wrap; }

/* ── Responsive nav ── */
@media (max-width: 900px) {
  .nav { padding: 0 24px; }
  .nav-links { display: none; position: fixed; top: var(--nav-h); left: 0; right: 0; bottom: 0;
    background: rgba(5,5,8,0.97); backdrop-filter: blur(18px);
    flex-direction: column; align-items: center; justify-content: center;
    gap: var(--sp-8); z-index: 99;
  }
  .nav-links.open { display: flex; }
  .nav-links a { font-size: 20px; }
  .nav-mobile-toggle { display: flex; }
  .nav-cta { display: none; }
  .container { padding: 0 24px; }
  .container-narrow { padding: 0 24px; }
  .section { padding: 64px 0; }
  .footer { padding: var(--sp-8) 24px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .page-header { padding: calc(var(--nav-h) + 40px) 0 40px; }
  .page-header-inner {