/**
 * NADIR layout — nav, footer, CTAs, prose width, mobile (all pages)
 * Load after nadir-design-system.css
 */

/* ─── Containers & sections ─── */
.container,
.container-prose {
  width: var(--container);
  margin-inline: auto;
  position: relative;
  z-index: 2;
}

.container-wide {
  width: min(1440px, calc(100% - 2rem));
  margin-inline: auto;
  position: relative;
  z-index: 2;
}

.container-prose {
  max-width: 720px;
}

.section {
  padding: clamp(4rem, 8vw, 7.5rem) 0;
  position: relative;
  z-index: 1;
}

.section-header {
  max-width: 720px;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.section-header--center {
  margin-inline: auto;
  text-align: center;
}

.section-header p {
  margin-top: 0.85rem;
  font-size: 1.0625rem;
  line-height: 1.72;
  color: var(--text2);
}

/* Nav chrome: nadir-premium.css */

.nav-drawer-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1999;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(4px);
}

.nav-drawer {
  display: none;
  position: fixed;
  top: 0;
  right: 0;
  z-index: 2000;
  width: min(320px, 92vw);
  height: 100%;
  padding: 5rem 1.25rem 6rem;
  background: var(--nadir-charcoal-900);
  border-left: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-layer-3);
  flex-direction: column;
  gap: 0.5rem;
  overflow-y: auto;
}

.nav-drawer a {
  font-family: var(--display);
  font-size: 1.05rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text2);
}

.nav-drawer a.active {
  color: var(--accent-bright);
}

.nav-drawer-cta {
  margin-top: auto;
  display: grid;
  gap: 0.65rem;
}

body.nav-open .nav-drawer-backdrop,
body.nav-open .nav-drawer {
  display: flex;
}

body.nav-open .nav-toggle span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

body.nav-open .nav-toggle span:nth-child(2) {
  opacity: 0;
}

body.nav-open .nav-toggle span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ─── CTA bands ─── */
.cta-band {
  margin: clamp(2rem, 5vw, 4rem) 0;
  padding: clamp(2rem, 4vw, 3rem);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-magma);
  background: linear-gradient(135deg, rgba(249, 115, 22, 0.12), rgba(15, 17, 21, 0.95));
  box-shadow: var(--shadow-layer-2), var(--shadow-magma);
  display: grid;
  gap: 1.25rem;
  text-align: center;
}

.cta-band--inline {
  text-align: left;
  grid-template-columns: 1fr auto;
  align-items: center;
}

.cta-band h2 {
  font-family: var(--display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: -0.02em;
}

.cta-band p {
  color: var(--text2);
  max-width: 52ch;
  margin-top: 0.5rem;
  line-height: 1.65;
}

.cta-band__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  justify-content: center;
}

.cta-band--inline .cta-band__actions {
  justify-content: flex-end;
}

.btn-secondary {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.7rem 1.1rem;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  color: var(--text2);
  background: var(--soft-glass);
  transition: transform var(--dur-fast) var(--ease-spring), border-color var(--dur-fast) ease;
}

.btn-secondary:hover {
  transform: translateY(-1px);
  border-color: var(--border-magma);
  color: var(--text);
}

/* ─── Footer ─── */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  background: var(--nadir-charcoal-1000);
  padding: 3rem 0 2.5rem;
  margin-top: 2rem;
  position: relative;
  z-index: 2;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(4, minmax(0, 1fr));
  gap: 2rem 1.5rem;
}

.footer-brand p {
  margin-top: 0.75rem;
  color: var(--text3);
  font-size: 0.9rem;
  line-height: 1.65;
  max-width: 36ch;
}

.footer-col h4 {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-bright);
  margin-bottom: 0.85rem;
}

.footer-col a {
  display: block;
  font-size: 0.88rem;
  color: var(--text3);
  padding: 0.28rem 0;
  transition: color var(--dur-fast) ease;
}

.footer-col a:hover {
  color: var(--text);
}

.footer-bottom a {
  color: var(--text3);
  text-decoration: none;
}

.footer-bottom a:hover {
  color: var(--accent);
}

.nav-actions button.btn {
  cursor: pointer;
  font: inherit;
}

.footer-bottom {
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  color: var(--text3);
}

/* ─── Grids & cards ─── */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.surface-card,
.media-card,
.metric-card {
  padding: 1.25rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.01));
  background-color: var(--bg-elev-2);
  box-shadow: var(--shadow-layer-1);
  transition: transform var(--dur-med) var(--ease-out-expo), box-shadow var(--dur-med) ease;
}

.surface-card:hover,
.media-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-layer-2);
}

.media-card iframe,
.media-card video {
  width: 100%;
  border: none;
  border-radius: var(--radius-md);
  display: block;
  aspect-ratio: 16 / 9;
  background: var(--nadir-charcoal-950);
}

.media-card__caption {
  margin-top: 0.75rem;
  font-size: 0.88rem;
  color: var(--text3);
}

/* Article list */
.article-list {
  display: grid;
  gap: 0.75rem;
}

.article-list a {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.5rem 1rem;
  padding: 1rem 1.15rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-elev-2);
  transition: border-color var(--dur-fast) ease, transform var(--dur-fast) ease;
}

.article-list a:hover {
  border-color: var(--border-magma);
  transform: translateX(4px);
}

.article-list strong {
  font-family: var(--display);
  font-size: 1rem;
  color: var(--text);
}

.article-list span {
  font-size: 0.82rem;
  color: var(--text3);
  grid-column: 1;
}

.article-list time {
  font-family: var(--mono);
  font-size: 0.62rem;
  color: var(--accent-bright);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Prose articles */
.prose-article {
  max-width: 720px;
  margin-inline: auto;
}

.prose-article h1 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  margin-bottom: 1rem;
}

.prose-article .lead {
  font-size: 1.125rem;
  color: var(--text2);
  line-height: 1.72;
  margin-bottom: 2rem;
}

.prose-article h2 {
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
  font-size: clamp(1.25rem, 2.5vw, 1.65rem);
}

.prose-article p,
.prose-article li {
  color: var(--muted);
  line-height: 1.72;
  margin-bottom: 1rem;
}

.prose-article ul {
  padding-left: 1.25rem;
  margin-bottom: 1.25rem;
}

.faq details {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  margin-bottom: 0.5rem;
  background: var(--bg-elev-2);
}

.faq summary {
  font-family: var(--display);
  font-weight: 600;
  cursor: pointer;
  color: var(--text);
}

.faq p {
  margin-top: 0.65rem;
  margin-bottom: 0;
}

/* Comparison row */
.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.compare-col {
  padding: 1.25rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
}

.compare-col--legacy {
  background: var(--nadir-charcoal-900);
}

.compare-col--nadir {
  border-color: var(--border-magma);
  background: rgba(249, 115, 22, 0.08);
}

/* Focus */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--nadir-magma-400);
  outline-offset: 3px;
}

/* Mobile */
@media (max-width: 1024px) {
  .site-header .nav-shell {
    grid-template-columns: auto auto auto;
  }

  .site-nav {
    display: none;
  }

  .nav-toggle {
    display: flex;
    justify-self: end;
  }

  .nav-actions .btn-pitch {
    display: none;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .grid-3,
  .grid-4,
  .compare-grid,
  .cta-band--inline {
    grid-template-columns: 1fr;
  }

  .cta-band--inline {
    text-align: center;
  }

  .cta-band--inline .cta-band__actions {
    justify-content: center;
  }
}

@media (max-width: 640px) {
  .grid-2,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .nav-actions .btn-primary {
    padding: 0.55rem 0.75rem;
    font-size: 0.58rem;
  }
}