/* ============================================================
   THE INCOME ALCHEMY — Layout
   ============================================================ */

/* ── Site Header / Nav ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(246, 242, 232, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background var(--ease-slow);
}

[data-theme="dark"] .site-header {
  background: rgba(14, 13, 11, 0.92);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-4);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
}

.nav-logo-text {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--charcoal);
  line-height: 1.1;
  transition: color var(--ease-fast);
}
.nav-logo-text span { color: var(--teal); }
.nav-logo:hover .nav-logo-text { color: var(--teal); }

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.01em;
  transition: color var(--ease-fast);
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--gold);
  transition: width var(--ease-base);
}
.nav-link:hover { color: var(--charcoal); }
.nav-link:hover::after { width: 100%; }
.nav-link.active { color: var(--teal); }
.nav-link.active::after { width: 100%; background: var(--teal); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.theme-toggle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--ease-fast);
  color: var(--smoke);
  font-size: 15px;
}
.theme-toggle:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.nav-mobile-toggle {
  display: none;
  width: 36px;
  height: 36px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  background: transparent;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.hamburger-line {
  width: 100%;
  height: 1.5px;
  background: var(--charcoal);
  border-radius: 2px;
  transition: all var(--ease-base);
  display: block;
}

/* ── Site Footer ── */
.site-footer {
  background: var(--charcoal-soft);
  color: var(--parchment);
  padding-block: var(--space-16) var(--space-8);
  margin-top: var(--space-32);
}
[data-theme="dark"] .site-footer { background: #0A0908; }

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-12);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand p {
  color: rgba(246,242,232,0.55);
  font-size: var(--text-sm);
  line-height: 1.7;
  margin-top: var(--space-4);
  max-width: 280px;
}

.footer-col-title {
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: var(--space-5);
}

.footer-links { display: flex; flex-direction: column; gap: var(--space-3); }

.footer-link {
  font-size: var(--text-sm);
  color: rgba(246,242,232,0.55);
  text-decoration: none;
  transition: color var(--ease-fast);
}
.footer-link:hover { color: var(--gold-light); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-8);
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-copy {
  font-size: var(--text-xs);
  color: rgba(246,242,232,0.3);
}

.footer-tagline {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: var(--text-sm);
  color: var(--gold);
  opacity: 0.7;
}

/* ── Section Layout ── */
.section {
  padding-block: var(--section-y);
}

.section-sm { padding-block: var(--space-16); }
.section-lg { padding-block: calc(var(--section-y) * 1.5); }

.section-parchment { background: var(--parchment-mid); }
.section-dark {
  background: var(--charcoal-soft);
  color: var(--parchment);
}
.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4 { color: var(--parchment); }
.section-dark p { color: rgba(246,242,232,0.65); }
.section-dark .eyebrow { color: var(--gold); }

.section-warm {
  background: var(--surface-warm);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

/* ── Hero Section ── */
.hero {
  padding-block: var(--space-24) var(--space-20);
  position: relative;
  overflow: hidden;
}

.hero-ornament {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: min(480px, 45vw);
  opacity: 0.06;
  pointer-events: none;
}
[data-theme="dark"] .hero-ornament { opacity: 0.04; }

.hero-eyebrow { margin-bottom: var(--space-5); }

.hero-headline {
  margin-bottom: var(--space-6);
}

.hero-sub {
  font-size: var(--text-md);
  color: var(--smoke);
  max-width: 540px;
  line-height: 1.78;
  margin-bottom: var(--space-8);
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-bottom: var(--space-12);
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: var(--space-10);
  padding-top: var(--space-8);
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}

/* ── Grids ── */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}

.grid-auto {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-6);
}

/* ── Two-col layout ── */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}
.two-col-content-first { }
.two-col-reverse { direction: rtl; }
.two-col-reverse > * { direction: ltr; }

/* ── Philosophy grid ── */
.philosophy-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}

/* ── Mobile nav ── */
.mobile-nav {
  display: none;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--border);
  padding-block: var(--space-4);
}
.mobile-nav.open { display: flex; }
.mobile-nav-link {
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--ink);
  text-decoration: none;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--border-light);
  transition: color var(--ease-fast);
}
.mobile-nav-link:hover, .mobile-nav-link.active { color: var(--teal); }

/* ── Page hero (inner pages) ── */
.page-hero {
  padding-block: var(--space-16) var(--space-12);
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--space-16);
}

/* ── Builds list ── */
.build-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: var(--space-6);
  align-items: center;
  padding-block: var(--space-6);
  border-bottom: 1px solid var(--border-light);
  text-decoration: none;
  color: inherit;
  transition: background var(--ease-fast);
}
.build-row:hover { background: var(--surface-warm); border-radius: var(--radius-md); padding-inline: var(--space-4); margin-inline: calc(var(--space-4) * -1); }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-10);
  }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root { --section-y: var(--space-16); }

  .nav-links { display: none; }
  .nav-mobile-toggle { display: flex; }
  .nav-actions .btn { display: none; }

  .hero { padding-block: var(--space-16) var(--space-12); }
  .hero-ornament { opacity: 0.03; width: 100%; right: -20%; }

  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr; }
  .two-col { grid-template-columns: 1fr; gap: var(--space-10); }
  .philosophy-grid { grid-template-columns: 1fr; }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .footer-bottom { flex-direction: column; text-align: center; }

  .hero-stats { gap: var(--space-6); }

  .build-row { grid-template-columns: 1fr auto; }
  .build-row .badge { display: none; }
}

@media (max-width: 480px) {
  .container { padding-inline: var(--space-5); }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .inline-form { flex-direction: column; }
  .inline-form .btn { width: 100%; }
}