/* ============================================================
   Base Homes — Redesign site styles
   Built on top of colors_and_type.css (the design system)
   ============================================================ */

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body {
  font-family: var(--bh-font-body);
  background: var(--bh-surface-bright);
  color: var(--bh-ink);
  font-size: 16px;
  line-height: 1.6;
  font-synthesis: none;
  overflow-x: hidden;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul, ol { list-style: none; }

/* ============================================================
   DENSITY TOKENS — scale site rhythm via data-density
   ============================================================ */
:root {
  --pad-section: 112px;
  --pad-container: 40px;
  --gap-section: 96px;
}
[data-density="compact"] {
  --pad-section: 72px;
  --pad-container: 32px;
  --gap-section: 64px;
}
[data-density="spacious"] {
  --pad-section: 144px;
  --pad-container: 48px;
  --gap-section: 128px;
}

/* ============================================================
   LAYOUT
   ============================================================ */
.container { max-width: 1240px; margin: 0 auto; padding: 0 var(--pad-container); }
.container--narrow { max-width: 760px; }
.container--wide   { max-width: 1400px; }
.section { padding: var(--pad-section) 0; position: relative; }
.section--alt { background: var(--bh-container-low); }
.section--tight { padding: calc(var(--pad-section) * 0.6) 0; }

/* ============================================================
   NAV — thin hairline, warm cream blur
   ============================================================ */
.site-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(254, 248, 243, 0.82);
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  border-bottom: 0.5px solid transparent;
  transition: border-color var(--bh-t-base), background var(--bh-t-base);
}
.site-nav.scrolled { border-bottom-color: var(--bh-outline); }
.nav-inner {
  max-width: 1400px; margin: 0 auto;
  padding: 0 var(--pad-container); height: 64px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 40px;
}
.nav-logo {
  font-family: var(--bh-display);
  font-weight: var(--bh-display-wght);
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  color: var(--bh-ink);
  display: inline-flex; align-items: center; gap: 8px;
}
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-link {
  font-size: 0.88rem; font-weight: 400;
  color: var(--bh-ink-secondary);
  padding: 6px 2px; position: relative;
  transition: color var(--bh-t-fast);
}
.nav-link:hover, .nav-link.active { color: var(--bh-ink); }
.nav-link.active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0;
  height: 0.5px; background: var(--bh-accent);
}
.nav-actions { display: flex; align-items: center; gap: 16px; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px;
  font-family: var(--bh-font-body);
  font-size: 0.92rem; font-weight: 500;
  padding: 0.82em 1.7em;
  border: 0.5px solid transparent;
  border-radius: var(--bh-r-sm);
  cursor: pointer; text-decoration: none; white-space: nowrap;
  transition: background var(--bh-t-fast), color var(--bh-t-fast),
              border-color var(--bh-t-fast), transform var(--bh-t-fast);
}
.btn--primary {
  background: var(--bh-accent); color: var(--bh-on-accent);
  box-shadow: 0 1px 2px rgba(44,24,16,0.08);
}
.btn--primary:hover {
  background: var(--bh-accent-hover);
  transform: translateY(-1px);
}
.btn--ghost {
  background: transparent; color: var(--bh-ink);
  border-color: var(--bh-outline);
}
.btn--ghost:hover { background: var(--bh-container); border-color: var(--bh-ink-muted); }
.btn--text {
  background: transparent; color: var(--bh-ink);
  padding: 0.3em 0; border-radius: 0;
  border-bottom: 0.5px solid var(--bh-ink-muted);
}
.btn--text:hover { color: var(--bh-accent); border-color: var(--bh-accent); }
.btn--sm { padding: 0.6em 1.2em; font-size: 0.85rem; }

.text-link {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--bh-ink); font-size: 0.95rem; font-weight: 500;
  border-bottom: 0.5px solid var(--bh-accent);
  padding-bottom: 2px;
  transition: color var(--bh-t-fast);
}
.text-link:hover { color: var(--bh-accent); }
.text-link .arrow { transition: transform var(--bh-t-fast); }
.text-link:hover .arrow { transform: translateX(3px); }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--bh-inverse-surface);
  color: var(--bh-inverse-on-surface);
  padding: 80px 0 40px;
  border-top: 0.5px solid var(--bh-outline);
}
.footer-inner {
  max-width: 1240px; margin: 0 auto;
  padding: 0 var(--pad-container);
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px;
}
.footer-brand { max-width: 320px; }
.footer-brand .logo {
  font-family: var(--bh-display); font-weight: var(--bh-display-wght);
  font-size: 1.2rem; letter-spacing: -0.02em;
  display: inline-flex; align-items: center; gap: 8px;
  margin-bottom: 16px;
}
.footer-brand p {
  font-size: 0.9rem; line-height: 1.6;
  color: rgba(245, 240, 235, 0.6);
}
.footer-col h5 {
  font-size: 0.72rem; font-weight: 500;
  text-transform: uppercase; letter-spacing: 0.14em;
  color: rgba(245, 240, 235, 0.45);
  margin-bottom: 20px;
}
.footer-col a {
  display: block; font-size: 0.92rem;
  color: rgba(245, 240, 235, 0.75);
  padding: 5px 0;
  transition: color var(--bh-t-fast);
}
.footer-col a:hover { color: var(--bh-inverse-on-surface); }
.footer-bottom {
  max-width: 1240px; margin: 48px auto 0;
  padding: 24px var(--pad-container) 0;
  border-top: 0.5px solid rgba(245, 240, 235, 0.12);
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.82rem; color: rgba(245, 240, 235, 0.4);
}

/* ============================================================
   PRE-FOOTER CTA
   ============================================================ */
.pre-footer {
  padding: var(--pad-section) 0;
  background: var(--bh-container-low);
  border-top: 0.5px solid var(--bh-outline);
  border-bottom: 0.5px solid var(--bh-outline);
}
.pre-footer .inner {
  max-width: 780px; margin: 0 auto; text-align: center;
  padding: 0 var(--pad-container);
}
.pre-footer .eyebrow { margin-bottom: 20px; }
.pre-footer h2 {
  font-family: var(--bh-display);
  font-weight: var(--bh-display-wght);
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: var(--bh-display-trk);
  line-height: 1.1;
  color: var(--bh-ink);
  margin-bottom: 20px;
  text-wrap: balance;
}
.pre-footer p {
  font-size: 1.1rem; color: var(--bh-ink-secondary);
  line-height: 1.7; margin-bottom: 32px;
  max-width: 560px; margin-left: auto; margin-right: auto;
}

/* ============================================================
   UTILITIES
   ============================================================ */
.eyebrow {
  display: inline-block;
  font-size: 0.72rem; font-weight: 500;
  text-transform: uppercase; letter-spacing: 0.14em;
  color: var(--bh-ink-muted);
}
.rule { display: block; width: 40px; height: 0.5px; background: var(--bh-accent); margin: 24px 0; }
.rule--centered { margin-left: auto; margin-right: auto; }

/* Reveal (progressive enhancement) */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 800ms var(--bh-ease-out), transform 800ms var(--bh-ease-out); }
.reveal.revealed { opacity: 1; transform: translateY(0); }
.reveal-d1 { transition-delay: 60ms; }
.reveal-d2 { transition-delay: 120ms; }
.reveal-d3 { transition-delay: 180ms; }
.reveal-d4 { transition-delay: 240ms; }

/* ============================================================
   PLACEHOLDER IMAGERY — cream blocks w/ architectural sketches
   ============================================================ */
.placeholder {
  position: relative; overflow: hidden;
  background: var(--bh-container);
  border: 0.5px solid var(--bh-outline);
  border-radius: var(--bh-r-md);
  color: var(--bh-ink-faint);
  display: flex; align-items: center; justify-content: center;
}
.placeholder::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(180deg, transparent 0, transparent calc(100% - 0.5px), var(--bh-outline) 100%),
    linear-gradient(90deg, transparent 0, transparent calc(100% - 0.5px), var(--bh-outline) 100%);
  background-size: 24px 24px;
  opacity: 0.3;
  pointer-events: none;
}
.placeholder-note {
  font-family: var(--bh-font-mono);
  font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--bh-ink-muted);
  background: var(--bh-container-lowest);
  padding: 4px 8px; border-radius: 3px;
  border: 0.5px solid var(--bh-outline);
  position: relative; z-index: 1;
}

/* Arch-sketch placeholder decoration (roof line) */
.placeholder--arch::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: 0;
  height: 40%;
  background:
    linear-gradient(to top right, var(--bh-ink-faint) 0, var(--bh-ink-faint) 50%, transparent 50%),
    linear-gradient(to top left, var(--bh-ink-faint) 0, var(--bh-ink-faint) 50%, transparent 50%);
  background-size: 50% 100%, 50% 100%;
  background-repeat: no-repeat;
  background-position: left bottom, right bottom;
  opacity: 0.08;
  pointer-events: none;
}

/* ============================================================
   TWEAKS PANEL
   ============================================================ */
.tweaks-panel {
  position: fixed; bottom: 24px; right: 24px; z-index: 500;
  width: 300px;
  background: var(--bh-container-lowest);
  border: 0.5px solid var(--bh-outline);
  border-radius: var(--bh-r-lg);
  box-shadow: var(--bh-shadow-lg);
  padding: 16px;
  display: none;
  font-family: var(--bh-font-body);
}
.tweaks-panel.on { display: block; }
.tweaks-panel h4 {
  font-size: 0.7rem; font-weight: 500;
  text-transform: uppercase; letter-spacing: 0.14em;
  color: var(--bh-ink-muted);
  margin: 0 0 8px;
}
.tweaks-panel h4:not(:first-child) { margin-top: 18px; }
.tweaks-panel .opt-group { display: grid; gap: 4px; }
.tweaks-panel .opt {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 10px;
  border: 0.5px solid var(--bh-outline);
  border-radius: var(--bh-r-sm);
  cursor: pointer; background: transparent;
  width: 100%; text-align: left;
  transition: background var(--bh-t-fast), border-color var(--bh-t-fast);
}
.tweaks-panel .opt:hover { background: var(--bh-container); }
.tweaks-panel .opt.active {
  background: var(--bh-accent-soft);
  border-color: var(--bh-accent-quiet);
}
.tweaks-panel .opt .swatch {
  width: 14px; height: 14px; border-radius: 3px; flex-shrink: 0;
  border: 0.5px solid var(--bh-outline);
}
.tweaks-panel .opt .name { font-size: 0.82rem; font-weight: 500; color: var(--bh-ink); }
.tweaks-panel .opt .desc { font-size: 0.72rem; color: var(--bh-ink-muted); margin-top: 1px; }
.tweaks-panel .row { display: flex; gap: 6px; flex-wrap: wrap; }
.tweaks-panel .row .opt { flex: 1 1 0; min-width: 0; justify-content: center; }
.tweaks-panel .header {
  display: flex; align-items: center; justify-content: space-between;
  padding-bottom: 12px; margin-bottom: 4px;
  border-bottom: 0.5px solid var(--bh-outline);
}
.tweaks-panel .title {
  font-size: 0.8rem; font-weight: 500; color: var(--bh-ink);
  display: inline-flex; align-items: center; gap: 6px;
}
.tweaks-panel .title::before {
  content: ""; width: 6px; height: 6px; background: var(--bh-accent); border-radius: 50%;
}
.tweaks-panel .close {
  font-size: 0.72rem; color: var(--bh-ink-muted);
  padding: 2px 6px;
}
.tweaks-panel .close:hover { color: var(--bh-ink); }

/* ============================================================
   MOBILE NAV
   ============================================================ */
.nav-hamburger {
  display: none;
  flex-direction: column; justify-content: center; gap: 5px;
  width: 40px; height: 40px; padding: 8px;
  background: none; border: none; cursor: pointer;
}
.nav-hamburger span {
  display: block; height: 1px; background: var(--bh-ink);
  transition: transform var(--bh-t-base), opacity var(--bh-t-base);
  transform-origin: center;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.nav-mobile-menu {
  display: none;
  position: fixed; top: 64px; left: 0; right: 0; z-index: 99;
  background: rgba(254, 248, 243, 0.97);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 0.5px solid var(--bh-outline);
  padding: 16px 0 24px;
}
.nav-mobile-menu.open { display: block; }
.nav-mobile-menu a {
  display: block;
  padding: 14px var(--pad-container);
  font-size: 1rem; color: var(--bh-ink-secondary);
  border-bottom: 0.5px solid var(--bh-outline);
  transition: color var(--bh-t-fast);
}
.nav-mobile-menu a:last-child { border-bottom: none; }
.nav-mobile-menu a:hover { color: var(--bh-ink); }
.nav-mobile-menu .mobile-cta {
  margin: 16px var(--pad-container) 0;
  display: block; text-align: center;
  color: var(--bh-on-accent);
}
.nav-mobile-menu .mobile-cta:hover { color: var(--bh-on-accent); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-actions { display: none; }
  .nav-hamburger { display: flex; }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-brand { grid-column: 1 / -1; }
  :root {
    --pad-section: 64px;
    --pad-container: 24px;
    --gap-section: 48px;
  }
}

@media (max-width: 480px) {
  :root {
    --pad-section: 48px;
    --pad-container: 16px;
    --gap-section: 36px;
  }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
}