/* ============================================
   Granite Elite Intel — Layout System
   Grid systems, flex utilities, sections, header/footer
   ============================================ */

/* ---- Page Wrapper ---- */
.page-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.page-wrapper > main {
  flex: 1;
}

/* ---- Section ---- */
.section {
  padding: var(--section-padding) 0;
  position: relative;
}

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

.section--medium {
  background-color: var(--color-bg-secondary);
}

.section--light {
  background-color: var(--color-bg-tertiary);
}

.section--no-pad-top {
  padding-top: 0;
}

.section--no-pad-bottom {
  padding-bottom: 0;
}

/* ---- Grid System ---- */
.grid {
  display: grid;
  gap: var(--grid-gap);
}

.grid--2 {
  grid-template-columns: repeat(2, 1fr);
}

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

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

.grid--5 {
  grid-template-columns: repeat(5, 1fr);
}

/* Auto-fit grids */
.grid--auto-fill {
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

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

/* Split layouts */
.grid--split {
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.grid--split-wide {
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-16);
  align-items: center;
}

.grid--split-narrow {
  grid-template-columns: 0.8fr 1.2fr;
  gap: var(--space-16);
  align-items: center;
}

/* ---- Flex Utilities ---- */
.flex {
  display: flex;
}

.flex--center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex--between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.flex--column {
  display: flex;
  flex-direction: column;
}

.flex--wrap {
  display: flex;
  flex-wrap: wrap;
}

.flex--gap-sm {
  gap: var(--space-3);
}

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

.flex--gap-lg {
  gap: var(--space-10);
}

/* ---- Header ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px) saturate(150%);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  border-bottom: var(--border-subtle);
  transition: height var(--duration-base) var(--ease-out),
              background-color var(--duration-base) var(--ease-out),
              box-shadow var(--duration-base) var(--ease-out);
}

.site-header.scrolled {
  height: var(--header-height-scrolled);
  background: rgba(255, 255, 255, 0.97);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
  z-index: calc(var(--z-sticky) + 1);
}

.site-logo__icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  object-fit: cover;
  transition: transform var(--duration-base) var(--ease-out);
}

.site-logo:hover .site-logo__icon {
  transform: scale(1.05);
}

.site-logo__text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.site-logo__name {
  font-size: var(--text-md);
  font-weight: var(--weight-bold);
  color: #1a202c;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}

.site-logo__tagline {
  font-size: 0.6rem;
  font-weight: var(--weight-medium);
  color: var(--color-silver-dark);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
}

/* Navigation */
.main-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-silver);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: color var(--duration-fast) var(--ease-out),
              background-color var(--duration-fast) var(--ease-out);
  white-space: nowrap;
}

.nav-link:hover,
.nav-link--active {
  color: var(--color-white);
  background-color: rgba(0, 87, 184, 0.06);
}

.nav-link--active {
  color: var(--color-accent);
}

/* Dropdown arrow */
.nav-link .nav-arrow {
  width: 10px;
  height: 10px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  transition: transform var(--duration-fast) var(--ease-out);
}

.nav-item:hover .nav-arrow,
.nav-item.open .nav-arrow {
  transform: rotate(180deg);
}

/* Dropdown menu */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 260px;
  padding: var(--space-3);
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px) saturate(150%);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
  border: var(--border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-base) var(--ease-out),
              transform var(--duration-base) var(--ease-out),
              visibility var(--duration-base);
  pointer-events: none;
}

.nav-item:hover .dropdown-menu,
.nav-item.open .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}

.dropdown-link {
  display: block;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-silver);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: color var(--duration-fast) var(--ease-out),
              background-color var(--duration-fast) var(--ease-out);
}

.dropdown-link:hover {
  color: var(--color-white);
  background-color: rgba(0, 87, 184, 0.12);
}

/* Mobile menu toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  cursor: pointer;
  z-index: calc(var(--z-sticky) + 1);
  border-radius: var(--radius-md);
  transition: background-color var(--duration-fast) var(--ease-out);
}

.menu-toggle:hover {
  background-color: rgba(0, 0, 0, 0.04);
}

.menu-toggle__line {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-silver-light);
  border-radius: 1px;
  transition: transform var(--duration-base) var(--ease-out),
              opacity var(--duration-base) var(--ease-out);
}

.menu-toggle__line + .menu-toggle__line {
  margin-top: 5px;
}

/* Hamburger animation */
.menu-toggle.active .menu-toggle__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.active .menu-toggle__line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.menu-toggle.active .menu-toggle__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Header CTA */
.header-cta {
  margin-left: var(--space-4);
}

/* ---- Footer ---- */
.site-footer {
  background-color: #0d1117;
  border-top: var(--border-subtle);
  padding: var(--space-20) 0 var(--space-10);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: var(--space-12);
  padding-bottom: var(--space-12);
  border-bottom: var(--border-subtle);
}

.footer-brand {
  padding-right: var(--space-8);
}

.footer-brand .site-logo {
  margin-bottom: var(--space-6);
}

.footer-brand p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
  max-width: 320px;
}

.footer-column h4 {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: #f5f7fa;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  margin-bottom: var(--space-6);
}

.footer-column li {
  margin-bottom: var(--space-3);
}

.footer-column a {
  font-size: var(--text-sm);
  color: var(--color-silver-dark);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}

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

/* Footer bottom */
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-8);
  font-size: var(--text-xs);
  color: var(--color-silver-dark);
}

.footer-bottom a {
  color: var(--color-silver-dark);
}

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

.footer-legal {
  display: flex;
  gap: var(--space-6);
}

/* ---- Hero Section ---- */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 70vh;
  padding: calc(var(--header-height) + var(--space-20)) 0 var(--space-20);
  overflow: hidden;
}

.hero--full {
  min-height: 100vh;
}

.hero--medium {
  min-height: 50vh;
}

.hero--small {
  min-height: 35vh;
  padding: calc(var(--header-height) + var(--space-12)) 0 var(--space-12);
}

.hero__background {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__background::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-overlay);
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}

.hero__content h1 {
  margin-bottom: var(--space-6);
}

.hero__content p {
  font-size: var(--text-xl);
  color: var(--color-silver);
  margin-bottom: var(--space-8);
  max-width: 60ch;
}

.hero__actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* Light theme: keep hero text white on dark hero backgrounds */
.hero__content h1,
.hero__content h2,
.hero__content h1.text-gradient {
  color: #f5f7fa;
  background: none;
  -webkit-background-clip: unset;
  -webkit-text-fill-color: #f5f7fa;
  background-clip: unset;
}

.hero__content p {
  color: rgba(208, 213, 220, 0.9);
}

.hero .section-label {
  color: #4d9ee8;
}

/* All dark-background sections: force white text */
.section--dark {
  background-color: #0d1117;
}

.section--dark h2,
.section--dark h3,
.section--dark h4,
.section--dark .stat-item__number {
  color: #f5f7fa;
}

.section--dark p,
.section--dark .stat-item__label,
.section--dark .section-label {
  color: #a0aec0;
}

.section--dark .btn--secondary {
  color: #d0d5dc;
  border-color: rgba(208, 213, 220, 0.3);
}

.section--dark .btn--secondary:hover {
  color: #f5f7fa;
  border-color: rgba(208, 213, 220, 0.5);
  background: rgba(208, 213, 220, 0.08);
}

/* Keep footer text light on dark footer */
.site-footer,
.site-footer h4,
.site-footer .site-logo__name {
  color: #f5f7fa;
}

.site-footer .footer-brand p,
.site-footer .footer-column a,
.site-footer .footer-bottom,
.site-footer .footer-bottom a,
.site-footer .site-logo__tagline {
  color: #718096;
}

.site-footer .footer-column a:hover,
.site-footer .footer-bottom a:hover {
  color: #4d9ee8;
}

/* Keep footer logo circle visible on dark footer */
.site-footer .site-logo__icon circle:first-of-type {
  stroke: #f5f7fa;
}

/* ---- Breadcrumbs ---- */
.breadcrumbs {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-4) 0;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.breadcrumbs a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}

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

.breadcrumbs__separator {
  color: var(--color-silver-dark);
  font-size: var(--text-xs);
  opacity: 0.5;
}

.breadcrumbs__current {
  color: var(--color-silver);
}

/* ---- Stats Strip ---- */
.stats-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
  padding: var(--space-12) 0;
  border-top: var(--border-subtle);
  border-bottom: var(--border-subtle);
}

.stat-item {
  text-align: center;
}

.stat-item__number {
  font-size: var(--text-4xl);
  font-weight: var(--weight-bold);
  color: var(--color-white);
  line-height: var(--leading-none);
  margin-bottom: var(--space-2);
}

.stat-item__label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
}