/* Agent OS marketing page — dark technical "control panel" aesthetic,
   palette derived from the real product logo (indigo/violet base,
   cyan + amber accents). No build step, plain CSS. */

:root {
  --void:        #08050f;
  --panel:       #120b2e;
  --panel-2:     #170f3a;
  --panel-3:     #1c1244;
  --violet:      #3b24b8;
  --violet-2:    #5638e0;
  --violet-bright:#7c5cfc;
  --cyan:        #22d3ee;
  --cyan-dim:    rgba(34, 211, 238, 0.35);
  --amber:       #fbbf24;
  --ink:         #f4f2ff;
  --ink-soft:    #c8c2e8;
  --ink-mute:    #8b84b3;
  --line:        rgba(124, 92, 252, 0.22);
  --line-soft:   rgba(124, 92, 252, 0.12);

  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body:    'Inter', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, monospace;

  --wrap: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--void);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-family: var(--font-display); font-weight: 600; margin: 0; letter-spacing: -0.01em; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
}

/* faint circuit-grid backdrop, fixed, whole page */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 75%);
  opacity: 0.5;
}

/* ---------- Topbar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(8, 5, 15, 0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-soft);
}
.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand-mark { border-radius: 7px; }
.brand-word {
  font-family: var(--font-mono);
  font-weight: 500;
  letter-spacing: 0.14em;
  font-size: 14px;
  color: var(--ink);
}
.brand-accent { color: var(--cyan); }

.nav { display: flex; align-items: center; gap: 32px; }
.nav a {
  font-size: 14px;
  color: var(--ink-soft);
  transition: color 0.15s ease;
}
.nav a:hover { color: var(--ink); }
.nav-cta {
  background: linear-gradient(135deg, var(--violet-2), var(--violet-bright));
  color: #fff !important;
  padding: 9px 18px;
  border-radius: 6px;
  font-weight: 600;
  border: 1px solid rgba(255,255,255,0.12);
}
.nav-cta:hover { filter: brightness(1.1); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 22px; height: 2px; background: var(--ink);
}

/* ---------- Shared bits ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--cyan);
  margin: 0 0 16px;
}
.eyebrow-center { text-align: center; }
.section-title {
  font-size: clamp(28px, 3.6vw, 42px);
  line-height: 1.15;
  max-width: 720px;
  margin-bottom: 56px;
}
.section-title.center { margin-left: auto; margin-right: auto; text-align: center; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 15px;
  border: 1px solid transparent;
  transition: transform 0.15s ease, filter 0.15s ease, background 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: linear-gradient(135deg, var(--violet-2), var(--violet-bright));
  color: #fff;
  box-shadow: 0 8px 30px -8px rgba(124, 92, 252, 0.6);
}
.btn-primary:hover { filter: brightness(1.12); }
.btn-ghost {
  color: var(--ink);
  border-color: var(--line);
  background: rgba(255,255,255,0.02);
}
.btn-ghost:hover { border-color: var(--cyan-dim); background: rgba(34,211,238,0.06); }
.btn-lg { padding: 16px 34px; font-size: 16px; }

/* browser chrome frame, shared by hero + proof screenshots */
.browser-chrome {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: #0d0820;
  border-bottom: 1px solid var(--line-soft);
}
.dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; }
.dot-r { background: #ff5f57; } .dot-y { background: #febc2e; } .dot-g { background: #28c840; }
.browser-url {
  margin-left: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-mute);
}
.browser-frame, .proof-frame {
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: 0 40px 80px -30px rgba(0,0,0,0.7);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  z-index: 1;
  padding: 88px 0 100px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: center;
}
.hero-copy h1 {
  font-size: clamp(34px, 4.6vw, 54px);
  line-height: 1.08;
  margin-bottom: 22px;
}
.hero-lede {
  color: var(--ink-soft);
  font-size: 17px;
  line-height: 1.65;
  max-width: 54ch;
  margin-bottom: 34px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 40px; }
.hero-stats {
  border-left: 2px solid var(--amber);
  padding-left: 16px;
}
.hero-stats li {
  font-size: 13.5px;
  color: var(--ink-mute);
  line-height: 1.6;
}
.hero-stats .num {
  font-family: var(--font-mono);
  color: var(--amber);
  font-weight: 500;
  margin-right: 8px;
}

.hero-visual { position: relative; }
.hero-visual .glow {
  position: absolute;
  inset: -60px -40px auto auto;
  width: 420px; height: 420px;
  background: radial-gradient(circle, rgba(59,36,184,0.55), transparent 70%);
  filter: blur(10px);
  z-index: -1;
}
.hero-visual .browser-frame { transform: rotate(-0.6deg); }

/* ---------- Inversion / comparison ---------- */
.inversion { position: relative; z-index: 1; padding: 40px 0 110px; }
.compare {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 28px;
  align-items: stretch;
}
.compare-col {
  border-radius: 10px;
  padding: 30px 30px 34px;
  border: 1px solid var(--line-soft);
}
.compare-them {
  background: rgba(255,255,255,0.015);
  filter: saturate(0.6);
}
.compare-them .compare-label { color: var(--ink-mute); }
.compare-them li {
  color: var(--ink-mute);
  border-bottom: 1px dashed var(--line-soft);
}
.compare-us {
  background: linear-gradient(180deg, rgba(59,36,184,0.16), rgba(23,15,58,0.5));
  border: 1px solid var(--cyan-dim);
  box-shadow: 0 0 60px -25px rgba(34,211,238,0.35);
}
.compare-us .compare-label { color: var(--cyan); }
.compare-us li { border-bottom: 1px dashed var(--line); }
.compare-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.compare-col li {
  padding: 12px 0;
  font-size: 14.5px;
  line-height: 1.5;
}
.compare-col li:last-child { border-bottom: none; }
.compare-arrow { display: flex; align-items: center; justify-content: center; }

/* ---------- Capabilities ---------- */
.capabilities { position: relative; z-index: 1; padding: 20px 0 110px; }
.cap-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  overflow: hidden;
}
.cap-card {
  background: var(--panel);
  padding: 30px 26px;
  transition: background 0.2s ease;
}
.cap-card:hover { background: var(--panel-2); }
.cap-icon { display: inline-flex; margin-bottom: 18px; }
.cap-icon svg { width: 34px; height: 34px; }
.cap-card h3 {
  font-size: 16.5px;
  margin-bottom: 10px;
}
.cap-card p {
  font-size: 13.5px;
  color: var(--ink-mute);
  line-height: 1.55;
}

/* ---------- Proof / screenshots ---------- */
.proof { position: relative; z-index: 1; padding: 20px 0 120px; }
.proof-row {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 52px;
  align-items: center;
  padding: 56px 0;
  border-top: 1px solid var(--line-soft);
}
.proof-row:first-of-type { border-top: none; }
.proof-row-rev { grid-template-columns: 1.15fr 0.85fr; }
.proof-row-rev .proof-copy { order: 2; }
.proof-row-rev .proof-frame { order: 1; }
.proof-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--amber);
  margin-bottom: 14px;
}
.proof-copy h3 {
  font-size: 24px;
  margin-bottom: 14px;
  max-width: 22ch;
}
.proof-copy p {
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.65;
  max-width: 46ch;
}

/* ---------- Final CTA ---------- */
.cta-band {
  position: relative;
  z-index: 1;
  padding: 100px 0;
  background: radial-gradient(ellipse 60% 100% at 50% 0%, rgba(59,36,184,0.35), transparent 70%),
              linear-gradient(180deg, var(--panel), var(--void));
  border-top: 1px solid var(--line-soft);
  text-align: center;
}
.cta-inner { max-width: 640px; margin: 0 auto; }
.cta-node { margin-bottom: 24px; display: flex; justify-content: center; }
.cta-band h2 {
  font-size: clamp(24px, 3.2vw, 34px);
  line-height: 1.25;
  margin-bottom: 18px;
}
.cta-band p {
  color: var(--ink-soft);
  font-size: 15.5px;
  line-height: 1.6;
  margin-bottom: 34px;
}

/* ---------- Footer ---------- */
.footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--line-soft);
  padding: 36px 0;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.footer-brand {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
  font-size: 13px;
}
.footer-tag { color: var(--ink-mute); font-size: 13px; }
.footer-links { display: flex; gap: 22px; }
.footer-links a { font-size: 13px; color: var(--ink-mute); }
.footer-links a:hover { color: var(--ink); }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .cap-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .compare { grid-template-columns: 1fr; }
  .compare-arrow { transform: rotate(90deg); padding: 4px 0; }
  .proof-row, .proof-row-rev { grid-template-columns: 1fr; }
  .proof-row-rev .proof-copy, .proof-row-rev .proof-frame { order: initial; }
}

@media (max-width: 720px) {
  .nav { position: fixed; top: 68px; left: 0; right: 0; background: var(--void);
         flex-direction: column; align-items: stretch; padding: 18px 24px 26px;
         border-bottom: 1px solid var(--line-soft); gap: 18px;
         transform: translateY(-8px); opacity: 0; pointer-events: none; transition: all 0.18s ease; }
  .nav.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav-cta { text-align: center; }
  .nav-toggle { display: flex; }
  .cap-grid { grid-template-columns: 1fr; }
  .hero { padding: 56px 0 70px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}