/* shared.css — extracted shared styles for stacked.help */

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

:root {
  --black: #0a0a0a;
  --white: #f5f3ef;
  --cream: #f0ece4;
  --orange: #ff4d00;
  --orange-dim: #ff4d0022;
  --gray: #888;
  --border: #1e1e1e;
  --card-bg: #111;
}

html { scroll-behavior: smooth; }

body {
  background: var(--black);
  color: var(--white);
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}

/* NOISE OVERLAY */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 999;
  opacity: 0.4;
}

/* NAV */
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 2.5rem;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: rgba(10,10,10,0.92);
  backdrop-filter: blur(12px);
  z-index: 100;
}

.logo {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
  color: var(--white);
  text-decoration: none;
}

.logo span {
  color: var(--orange);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-link {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.82rem;
  color: #c0c0c0;
  text-decoration: none;
  letter-spacing: 0.05em;
  transition: color 0.2s;
}

.nav-link:hover {
  color: var(--white);
}

.nav-link.active {
  color: var(--white);
}

nav a.cta-nav {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.82rem;
  color: var(--black);
  background: var(--orange);
  padding: 0.5rem 1.2rem;
  text-decoration: none;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: opacity 0.2s;
}

nav a.cta-nav:hover { opacity: 0.85; }

/* BUTTON PRIMITIVES */
.btn-primary {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.88rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--orange);
  color: var(--black);
  padding: 0.9rem 2rem;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.2s;
  display: inline-block;
}

.btn-primary:hover {
  background: var(--white);
}

/* CTA SECTION */
.cta-section {
  background: var(--orange);
  padding: 6rem 3.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.cta-section h2 {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: clamp(2.5rem, 4vw, 4rem);
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--black);
}

.cta-section p {
  color: rgba(0,0,0,0.6);
  margin-top: 1rem;
  font-size: 1rem;
}

.cta-actions {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: flex-start;
}

.btn-cta-main {
  background: var(--black);
  color: var(--white);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.92rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 1.1rem 2.5rem;
  text-decoration: none;
  transition: background 0.2s;
  display: inline-block;
}

.btn-cta-main:hover {
  background: #1a1a1a;
}

.cta-note {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.82rem;
  color: rgba(0,0,0,0.5);
  letter-spacing: 0.05em;
}

/* FOOTER */
footer {
  padding: 2rem 3.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border);
}

footer .logo { font-size: 1rem; }

.footer-note {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.82rem;
  color: #c0c0c0;
  letter-spacing: 0.05em;
}

/* MOBILE MENU */
.mobile-menu-btn {
  display: none;
  background: none;
  border: 1px solid var(--border);
  color: var(--white);
  padding: 0.4rem 0.6rem;
  cursor: pointer;
  font-size: 1.2rem;
  line-height: 1;
}

/* RESPONSIVE */
@media (max-width: 900px) {
  .cta-section { grid-template-columns: 1fr; gap: 2rem; }
  nav { padding: 1rem 1.5rem; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(10,10,10,0.98);
    flex-direction: column;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
    gap: 1rem;
  }
  .nav-links.open { display: flex; }
  .mobile-menu-btn { display: block; }
  footer { flex-direction: column; gap: 1rem; text-align: center; }
}