@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;600;700;800&family=DM+Mono:wght@400;500&family=DM+Sans:ital,wght@0,300;0,400;0,500;1,300&display=swap');

:root {
  --bg:          #080c10;
  --bg-2:        #0d1218;
  --bg-3:        #111820;
  --surface:     #141c26;
  --border:      rgba(0,210,180,0.12);
  --teal:        #00d2b4;
  --teal-dim:    rgba(0,210,180,0.15);
  --amber:       #f5a623;
  --white:       #f0ede8;
  --white-muted: rgba(240,237,232,0.55);
  --mono:        'DM Mono', monospace;
  --display:     'Syne', sans-serif;
  --body:        'DM Sans', sans-serif;
}


/* HELPERS */
.container { max-width: 1160px; margin: 0 auto; padding: 0 32px; }
.teal      { color: var(--teal); }
.label     { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--teal); }
.divider   { width: 40px; height: 2px; background: var(--teal); margin: 20px 0; }

h1, h2, h3, h4 { font-family: var(--display); line-height: 1.15; }
h1 { font-size: clamp(2.6rem, 5vw, 4.2rem); font-weight: 800; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); font-weight: 700; }
h3 { font-size: clamp(1.1rem, 2vw, 1.45rem); font-weight: 700; }
h4 { font-size: 1rem; font-weight: 600; }

p { color: var(--white-muted); }
strong { color: var(--white); font-weight: 500; }
a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; }
section { padding: 96px 0; }

/* BUTTONS */
.btn {
  display: inline-block;
  padding: 13px 32px;
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: 2px;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-primary {
  background: var(--teal);
  color: #000;
  border: 2px solid var(--teal);
}
.btn-primary:hover { background: transparent; color: var(--teal); text-decoration: none; }
.btn-outline {
  background: transparent;
  color: var(--teal);
  border: 2px solid var(--teal);
}
.btn-outline:hover { background: var(--teal); color: #000; text-decoration: none; }

/* CARD */
.fb-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 36px 32px;
  position: relative;
  overflow: hidden;
}
.fb-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--teal), transparent);
}

/* CODE BADGE */
.code-badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.72rem;
  background: rgba(0,210,180,0.08);
  border: 1px solid var(--border);
  color: var(--teal);
  padding: 2px 10px;
  border-radius: 2px;
  margin: 2px;
}

/* PAGE HEADER */
.page-header {
  padding: 140px 0 72px;
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.page-header::after {
  content: attr(data-bg-text);
  position: absolute;
  right: -20px; bottom: -20px;
  font-family: var(--display);
  font-weight: 800;
  font-size: 10rem;
  color: rgba(0,210,180,0.04);
  line-height: 1;
  pointer-events: none;
  white-space: nowrap;
}
.page-header h1 { margin-bottom: 16px; max-width: 700px; }
.page-header h1 em { font-style: normal; color: var(--teal); }
.page-header .sub { max-width: 580px; font-size: 1.05rem; line-height: 1.8; }

/* TWO COL */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

/* FEATURE LIST */
.feature-list { list-style: none; margin: 20px 0; }
.feature-list li {
  padding: 9px 0 9px 24px;
  position: relative;
  font-size: 0.93rem;
  color: var(--white-muted);
  border-bottom: 1px solid rgba(0,210,180,0.06);
}
.feature-list li::before {
  content: '→';
  position: absolute; left: 0;
  color: var(--teal);
  font-family: var(--mono);
}
.feature-list li strong { color: var(--white); }

/* QUICK INSIGHT */
.quick-insight {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-left: 3px solid var(--amber);
  padding: 20px 24px;
  margin: 12px 0;
  border-radius: 2px;
}
.quick-insight .qi-q {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--amber);
  letter-spacing: 0.1em;
  margin-bottom: 6px;
}
.quick-insight p { font-size: 0.9rem; color: var(--white-muted); }

/* FAQ */
.faq-list { max-width: 860px; margin-top: 48px; }
.faq-item { border-bottom: 1px solid var(--border); padding: 28px 0; }
.faq-item:first-child { border-top: 1px solid var(--border); }
.faq-q {
  font-family: var(--display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
}
.faq-q::before {
  content: 'Q:';
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--teal);
  margin-right: 10px;
}
.faq-a { color: var(--white-muted); font-size: 0.95rem; padding-left: 28px; }

/* CTA */
.cta-section {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  text-align: center;
  padding: 96px 0;
}
.cta-section h2 { margin-bottom: 16px; }
.cta-section p { margin-bottom: 36px; }

/* SPACING */
.mt-sm { margin-top: 16px; }
.mt-md { margin-top: 32px; }
.mt-lg { margin-top: 52px; }
.mb-md { margin-bottom: 32px; }

/* MOBILE */
@media (max-width: 768px) {
  .two-col { grid-template-columns: 1fr; gap: 40px; }
  .container { padding: 0 20px; }
  .page-header { padding: 120px 0 52px; }
  .page-header::after { font-size: 5rem; }
  section { padding: 60px 0; }
  h1 { font-size: 2.2rem; }
  h2 { font-size: 1.6rem; }
  .cta-section { padding: 60px 0; }
}