/* ============================================
   ZEN ARCHITECT — Shared Styles
   ============================================ */

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: #0a0a0a;
  color: #fff;
  line-height: 1.6;
}

a { text-decoration: none; color: inherit; }

/* ---- Navigation ---- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 32px;
  transition: background 0.3s ease, backdrop-filter 0.3s ease;
}

.nav.scrolled {
  background: rgba(10,10,10,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 500;
  font-size: 18px;
  letter-spacing: 0.5px;
  color: #fff;
}

.nav-logo svg {
  width: 36px; height: 36px;
}

.nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  color: rgba(255,255,255,0.75);
  font-size: 14px;
  font-weight: 400;
  transition: color 0.2s ease;
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: #fff;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 1.5px;
  background: #B8956A;
  transition: width 0.25s ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-phone {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  font-variant-numeric: tabular-nums;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  transition: all 0.3s ease;
}

/* ---- Footer ---- */
.footer {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 48px 32px 24px;
  background: #0a0a0a;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
  max-width: 1200px;
  margin: 0 auto 40px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 500;
  font-size: 18px;
  margin-bottom: 12px;
}

.footer-brand svg {
  width: 36px; height: 36px;
}

.footer-desc {
  font-size: 14px;
  color: rgba(255,255,255,0.5);
  line-height: 1.6;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 16px;
  color: rgba(255,255,255,0.9);
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: 10px;
}

.footer-col a {
  font-size: 14px;
  color: rgba(255,255,255,0.5);
  transition: color 0.2s ease;
}

.footer-col a:hover {
  color: #B8956A;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.06);
  font-size: 12px;
  color: rgba(255,255,255,0.35);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
}

.btn-primary {
  background: #B8956A;
  color: #0a0a0a;
}

.btn-primary:hover {
  background: #c9a67b;
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.25);
}

.btn-outline:hover {
  border-color: #B8956A;
  color: #B8956A;
}

/* ---- Section headings ---- */
.section-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: #B8956A;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 500;
  line-height: 1.15;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 15px;
  color: rgba(255,255,255,0.55);
  line-height: 1.7;
  max-width: 520px;
}

/* ---- Animations ---- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes titleReveal {
  to { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .nav { padding: 16px 20px; }
  .nav-links { display: none; }
  .nav-phone { display: none; }
  .nav-toggle { display: flex; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
}

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
}