/* ============================================================
   Structural layout: header, nav, sections, grids, footer
   ============================================================ */

/* ---- Header / Nav ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-navy);
  border-bottom: 1px solid var(--color-border-on-navy);
  transition: box-shadow var(--duration-base) var(--ease-standard),
              padding var(--duration-base) var(--ease-standard);
}

.site-header.is-settled {
  box-shadow: var(--shadow-nav-settled);
}

.site-header__inner {
  max-width: var(--container-max);
  margin-inline: auto;
  padding: var(--space-4) var(--container-pad);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--space-6);
  transition: padding var(--duration-base) var(--ease-standard);
}

.site-header__inner .brand { grid-column: 1; justify-self: start; }
.site-header__inner .nav-links { grid-column: 2; }
.site-header__inner .nav-toggle { grid-column: 3; justify-self: end; }

.site-header.is-settled .site-header__inner {
  padding-block: var(--space-3);
}

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

.brand__mark { width: 34px; height: 34px; flex-shrink: 0; }

.brand__wordmark {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.brand__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.375rem;
  letter-spacing: 0.04em;
  color: var(--color-text-on-navy);
}

.brand__tagline {
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-top: 3px;
}

.nav-links {
  display: none;
  align-items: center;
  gap: var(--space-1);
}

.nav-links a {
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-on-navy-soft);
  transition: color var(--duration-fast) var(--ease-standard),
              background var(--duration-fast) var(--ease-standard);
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--color-text-on-navy);
  background: rgba(247, 244, 238, 0.08);
}

.nav-cta {
  display: none;
  align-items: center;
  gap: var(--space-6);
}

.nav-phone {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-on-navy-soft);
  white-space: nowrap;
  transition: color var(--duration-fast) var(--ease-standard);
}

.nav-phone:hover { color: var(--color-gold); }

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  color: var(--color-text-on-navy);
}

.nav-toggle svg { width: 24px; height: 24px; }

.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 150;
  background: var(--color-navy);
  display: flex;
  flex-direction: column;
  padding: var(--space-6);
  transform: translateX(100%);
  transition: transform var(--duration-base) var(--ease-standard);
}

.mobile-nav.is-open { transform: translateX(0); }

.mobile-nav__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-12);
}

.mobile-nav__close {
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  color: var(--color-text-on-navy);
}

.mobile-nav__close svg { width: 24px; height: 24px; }

.mobile-nav__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.mobile-nav__links a {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 600;
  color: var(--color-text-on-navy);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border-on-navy);
}

.mobile-nav__footer {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.mobile-nav__footer .nav-phone {
  font-size: var(--text-lg);
  color: var(--color-text-on-navy);
}

@media (min-width: 900px) {
  .nav-links { display: flex; }
  .nav-cta { display: flex; }
  .nav-toggle { display: none; }
  .mobile-nav { display: none; }
}

/* ---- Sections ---- */
.section {
  padding-block: var(--section-padding-y);
}

.section--compact {
  padding-block: var(--section-padding-y-compact);
}

.section--navy {
  background: var(--color-navy);
  color: var(--color-text-on-navy);
  position: relative;
  overflow: hidden;
}

.section--navy h1, .section--navy h2, .section--navy h3 {
  color: var(--color-text-on-navy);
}

.section--navy-soft { background: var(--color-navy-soft); }

.section--cream { background: var(--color-cream); }

.section--white { background: var(--color-cream-card); }

.section--bordered {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.section-texture {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.section-texture--blueprint {
  background-image: url("../img/texture/blueprint-lines.svg");
  background-size: 500px 500px;
}

.section-texture--grain {
  background-image: url("../img/texture/grain-overlay.svg");
  mix-blend-mode: overlay;
  opacity: 0.5;
}

.section > .container { position: relative; z-index: 1; }

.section-head {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-3);
  max-width: 640px;
  margin-inline: auto;
  margin-bottom: var(--space-16);
}

.section-head--left {
  align-items: flex-start;
  text-align: left;
  margin-inline: 0;
}

.section-head h2 { font-size: var(--text-2xl); }

.section-head p {
  font-size: var(--text-md);
  color: var(--color-text-muted);
}

.section--navy .section-head p { color: var(--color-text-on-navy-soft); }

/* ---- Grids ---- */
.grid {
  display: grid;
  gap: var(--space-8);
}

.grid--services {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.grid--portfolio {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid--2col {
  grid-template-columns: 1.2fr 0.8fr;
}

.grid--3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid--4 {
  grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 899px) {
  .grid--2col, .grid--3 { grid-template-columns: 1fr; }
  .grid--4 { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 599px) {
  .grid--4 { grid-template-columns: 1fr; }
}

/* ---- CTA band ---- */
.cta-band {
  background: var(--color-gold);
  color: var(--color-navy);
  padding-block: var(--space-16);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-band h2 { color: var(--color-navy); font-size: var(--text-2xl); margin-bottom: var(--space-3); }
.cta-band p { color: rgba(27,39,51,0.75); font-size: var(--text-md); margin-bottom: var(--space-8); }

.cta-band__actions {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* ---- Breadcrumb ---- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-on-navy-soft);
  margin-bottom: var(--space-6);
}

.breadcrumb a:hover { color: var(--color-gold); }
.breadcrumb span[aria-current] { color: var(--color-gold); }

/* ---- Footer ---- */
.site-footer {
  background: var(--color-navy);
  color: var(--color-text-on-navy);
  padding-block: var(--space-16) var(--space-8);
}

.site-footer__top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-12);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid var(--color-border-on-navy);
}

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

.site-footer__brand .brand__name { color: var(--color-text-on-navy); }

.site-footer__col h4 {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--space-4);
}

.site-footer__col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.site-footer__col a,
.site-footer__col li {
  font-size: var(--text-sm);
  color: var(--color-text-on-navy-soft);
}

.site-footer__col a:hover { color: var(--color-gold); }

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

.social-row {
  display: flex;
  gap: var(--space-3);
}

.social-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--color-border-on-navy);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--duration-fast) var(--ease-standard),
              transform var(--duration-fast) var(--ease-standard);
}

.social-icon:hover {
  border-color: var(--color-gold);
  transform: translateY(-2px);
}

.social-icon svg { width: 16px; height: 16px; }

.copyright {
  font-size: var(--text-xs);
  color: var(--color-text-on-navy-faint);
}

@media (max-width: 599px) {
  .section-head { margin-bottom: var(--space-8); }
  .cta-band__actions { flex-direction: column; align-items: stretch; }
}