/* ============================================================
   LAYOUT UTILITIES
   ============================================================ */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.container--narrow {
  max-width: 960px;
}

.container--text {
  max-width: var(--max-width-text);
}

.section {
  padding-top: var(--space-32);
  padding-bottom: var(--space-32);
}

.section--flush-top    { padding-top: 0; }
.section--flush-bottom { padding-bottom: 0; }
.section--tight        { padding-top: var(--space-16); padding-bottom: var(--space-16); }

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

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.flex        { display: flex; }
.flex-col    { flex-direction: column; }
.items-center{ align-items: center; }
.justify-between { justify-content: space-between; }
.gap-4  { gap: var(--space-4); }
.gap-6  { gap: var(--space-6); }
.gap-8  { gap: var(--space-8); }

/* ============================================================
   TYPOGRAPHY UTILITIES
   ============================================================ */

.eyebrow {
  display: inline-block;
  font-size: var(--size-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-accent);
}

.eyebrow::before {
  content: '';
  display: inline-block;
  width: 20px;
  height: 1px;
  background: var(--color-accent);
  vertical-align: middle;
  margin-right: var(--space-3);
}

.headline-xl {
  font-size: clamp(var(--size-3xl), 7vw, var(--size-5xl));
  font-weight: var(--weight-black);
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-tight);
}

.headline-lg {
  font-size: clamp(var(--size-2xl), 5vw, var(--size-4xl));
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-tight);
}

.headline-md {
  font-size: clamp(var(--size-xl), 3vw, var(--size-3xl));
  font-weight: var(--weight-bold);
}

.headline-sm {
  font-size: var(--size-xl);
  font-weight: var(--weight-semibold);
}

.body-lg  { font-size: var(--size-md); color: var(--color-text-secondary); line-height: var(--leading-loose); }
.body-sm  { font-size: var(--size-sm); color: var(--color-text-secondary); }
.mono     { font-family: var(--font-mono); font-size: var(--size-sm); }
.muted    { color: var(--color-text-muted); }
.accent   { color: var(--color-accent); }

.text-center { text-align: center; }
.text-right  { text-align: right; }

/* ============================================================
   BUTTONS
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-8);
  font-size: var(--size-sm);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  border: 1px solid transparent;
  transition: background var(--duration-normal) var(--ease-default),
              color var(--duration-normal) var(--ease-default),
              border-color var(--duration-normal) var(--ease-default),
              transform var(--duration-fast) var(--ease-out);
  cursor: pointer;
}

.btn:active { transform: translateY(1px); }

.btn--primary {
  background: var(--color-accent);
  color: var(--color-bg);
  border-color: var(--color-accent);
}

.btn--primary:hover {
  background: var(--color-accent-dim);
  border-color: var(--color-accent-dim);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text-primary);
  border-color: var(--color-border-light);
}

.btn--ghost:hover {
  border-color: var(--color-text-primary);
  color: var(--color-text-primary);
}

.btn--outline-accent {
  background: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.btn--outline-accent:hover {
  background: var(--color-accent-glow);
}

.btn--sm {
  padding: var(--space-2) var(--space-6);
  font-size: var(--size-xs);
}

.btn--lg {
  padding: var(--space-4) var(--space-10);
  font-size: var(--size-md);
}

.btn__arrow {
  display: inline-block;
  transition: transform var(--duration-normal) var(--ease-spring);
}

.btn:hover .btn__arrow { transform: translateX(4px); }

/* ============================================================
   DIVIDERS
   ============================================================ */

.rule {
  border: none;
  border-top: 1px solid var(--color-border);
  width: 100%;
}

.rule--accent {
  border-color: var(--color-accent);
  width: 48px;
  border-width: 2px;
}

/* ============================================================
   NAVIGATION
   ============================================================ */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  height: var(--nav-height);
  display: flex;
  align-items: center;
  transition: background var(--duration-normal) var(--ease-default),
              border-color var(--duration-normal) var(--ease-default),
              backdrop-filter var(--duration-normal) var(--ease-default);
  border-bottom: 1px solid transparent;
}

.nav.scrolled {
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(16px);
  border-bottom-color: var(--color-border);
}

.nav__inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  width: 100%;
}

.nav__logo    { justify-self: start; }
.nav__actions { justify-self: end; }

/* Nav container overrides: full-bleed so logo is at left edge and buttons at right edge */
.nav .container {
  max-width: none;
  padding-left: var(--space-6);
  padding-right: var(--space-6);
  height: 100%;
  align-items: center;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.nav__logo-mark {
  width: 36px;
  height: 36px;
  /* SVG logo goes here */
  background: var(--color-accent);
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
}

.nav__logo-text {
  font-size: var(--size-md);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}

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

.nav__link {
  font-size: var(--size-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text-secondary);
  transition: color var(--duration-fast);
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width var(--duration-normal) var(--ease-out);
}

.nav__link:hover,
.nav__link.active {
  color: var(--color-text-primary);
}

.nav__link:hover::after,
.nav__link.active::after {
  width: 100%;
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  cursor: pointer;
}

.nav__hamburger span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--color-text-primary);
  transition: transform var(--duration-normal) var(--ease-default),
              opacity var(--duration-normal);
}

/* Mobile nav drawer */
.nav__mobile {
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-surface-1);
  z-index: calc(var(--z-nav) - 1);
  padding: var(--space-8) var(--gutter);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  transform: translateX(100%);
  transition: transform var(--duration-slow) var(--ease-out);
}

.nav__mobile.open { transform: translateX(0); }

.nav__mobile-link {
  font-size: var(--size-2xl);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-tight);
  color: var(--color-text-secondary);
  transition: color var(--duration-fast);
}

.nav__mobile-link:hover { color: var(--color-text-primary); }

/* ============================================================
   HERO
   ============================================================ */

.hero {
  position: relative;
  height: 100dvh;
  min-height: 640px;
  display: flex;
  align-items: flex-end;
  padding-bottom: var(--space-24);
  overflow: hidden;
}

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

.hero__media-bg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: brightness(0.4);
}

/* Vignette overlays */
.hero__media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(10,10,10,0.2) 0%,
    transparent 30%,
    transparent 50%,
    rgba(10,10,10,0.7) 80%,
    rgba(10,10,10,1) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 1;
  width: 100%;
}

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

.hero__headline {
  font-size: clamp(var(--size-3xl), 8vw, 6.5rem);
  font-weight: var(--weight-black);
  letter-spacing: var(--tracking-tight);
  line-height: 0.95;
  max-width: 14ch;
  margin-bottom: var(--space-8);
}

.hero__headline em {
  font-style: normal;
  color: var(--color-accent);
}

.hero__sub {
  font-size: var(--size-md);
  color: var(--color-text-secondary);
  max-width: 50ch;
  margin-bottom: var(--space-10);
  line-height: var(--leading-loose);
}

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

/* Scroll indicator */
.hero__scroll {
  position: absolute;
  bottom: var(--space-8);
  right: var(--gutter);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  z-index: 1;
}

.hero__scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--color-text-muted), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.4; transform: scaleY(1); }
  50%       { opacity: 1;   transform: scaleY(0.8); }
}

.hero__scroll-label {
  writing-mode: vertical-rl;
  font-size: var(--size-xs);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* ============================================================
   TICKER / STATS BAR
   ============================================================ */

.ticker {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface-1);
  overflow: hidden;
}

.ticker__track {
  display: flex;
  gap: var(--space-16);
  padding: var(--space-4) 0;
  animation: tickerScroll 30s linear infinite;
  white-space: nowrap;
}

.ticker__track:hover { animation-play-state: paused; }

@keyframes tickerScroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

.ticker__item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-shrink: 0;
  font-size: var(--size-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.ticker__item-value {
  font-size: var(--size-md);
  font-weight: var(--weight-bold);
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
}

.ticker__sep {
  color: var(--color-border-light);
}

/* ============================================================
   STATS GRID
   ============================================================ */

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}

.stat {
  padding: var(--space-12) var(--space-8);
  border-right: 1px solid var(--color-border);
  position: relative;
}

.stat:last-child { border-right: none; }

.stat__number {
  font-size: clamp(var(--size-3xl), 4vw, var(--size-5xl));
  font-weight: var(--weight-black);
  letter-spacing: var(--tracking-tight);
  line-height: 1;
  color: var(--color-text-primary);
  font-variant-numeric: tabular-nums;
}

.stat__unit {
  color: var(--color-accent);
}

.stat__label {
  margin-top: var(--space-2);
  font-size: var(--size-xs);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* ============================================================
   MISSION STATEMENT
   ============================================================ */

.mission {
  background: var(--color-surface-1);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.mission__inner {
  display: grid;
  grid-template-columns: 1fr 3fr;
  gap: var(--space-16);
  align-items: start;
}

.mission__label {
  padding-top: var(--space-2);
}

.mission__text {
  font-size: clamp(var(--size-lg), 2.5vw, var(--size-2xl));
  line-height: var(--leading-snug);
  color: var(--color-text-primary);
  font-weight: var(--weight-medium);
}

.mission__text strong {
  color: var(--color-accent);
  font-weight: var(--weight-bold);
}

/* ============================================================
   SYSTEMS / PRODUCTS
   ============================================================ */

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

.systems__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
}

.system-card {
  position: relative;
  background: var(--color-surface-1);
  aspect-ratio: 4/5;
  overflow: hidden;
  cursor: pointer;
}

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

.system-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slower) var(--ease-out),
              filter var(--duration-slower) var(--ease-out);
  filter: brightness(0.5) saturate(0.6);
}

.system-card:hover .system-card__img {
  transform: scale(1.04);
  filter: brightness(0.7) saturate(0.8);
}

.system-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,10,10,0.9) 0%, transparent 60%);
  z-index: 1;
}

.system-card__content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-8);
  z-index: 2;
}

.system-card__designation {
  font-family: var(--font-mono);
  font-size: var(--size-xs);
  color: var(--color-accent);
  letter-spacing: var(--tracking-wider);
  margin-bottom: var(--space-2);
}

.system-card__name {
  font-size: var(--size-xl);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-2);
}

.system-card__type {
  font-size: var(--size-xs);
  color: var(--color-text-secondary);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}

.system-card__cta {
  margin-top: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--size-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-accent);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--duration-normal) var(--ease-out),
              transform var(--duration-normal) var(--ease-out);
}

.system-card:hover .system-card__cta {
  opacity: 1;
  transform: translateY(0);
}

/* Featured card (large, spans 2 cols) */
.system-card--featured {
  grid-column: span 2;
  aspect-ratio: auto;
  min-height: 480px;
}

/* ============================================================
   CAPABILITIES
   ============================================================ */

.capability {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border-top: 1px solid var(--color-border);
  min-height: 560px;
}

.capability--reverse { direction: rtl; }
.capability--reverse > * { direction: ltr; }

.capability__media {
  position: relative;
  overflow: hidden;
  background: var(--color-surface-2);
}

.capability__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.6) saturate(0.7);
  transition: transform var(--duration-slower) var(--ease-out);
}

.capability:hover .capability__img { transform: scale(1.03); }

.capability__content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-16) var(--space-12);
  background: var(--color-surface-1);
}

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

.capability__headline {
  font-size: clamp(var(--size-xl), 3vw, var(--size-3xl));
  font-weight: var(--weight-bold);
  line-height: var(--leading-snug);
  margin-bottom: var(--space-6);
}

.capability__body {
  color: var(--color-text-secondary);
  line-height: var(--leading-loose);
  margin-bottom: var(--space-8);
}

.capability__specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4) var(--space-8);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
  margin-bottom: var(--space-8);
}

.capability__spec-label {
  font-size: var(--size-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-1);
}

.capability__spec-value {
  font-family: var(--font-mono);
  font-size: var(--size-md);
  color: var(--color-text-primary);
  font-weight: var(--weight-semibold);
}

/* ============================================================
   TECHNOLOGY / PLATFORM SECTION
   ============================================================ */

.platform {
  background: var(--color-surface-1);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.platform__header {
  margin-bottom: var(--space-16);
}

.platform__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
}

.platform-tile {
  background: var(--color-surface-2);
  padding: var(--space-8);
  transition: background var(--duration-normal);
}

.platform-tile:hover { background: var(--color-surface-3); }

.platform-tile__icon {
  width: 48px;
  height: 48px;
  background: var(--color-accent-glow);
  border: 1px solid var(--color-border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-6);
  /* SVG icon placeholder */
}

.platform-tile__icon-inner {
  width: 24px;
  height: 24px;
  background: var(--color-accent);
  opacity: 0.6;
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

.platform-tile__title {
  font-size: var(--size-md);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-3);
}

.platform-tile__body {
  font-size: var(--size-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-loose);
}

/* ============================================================
   FULL-WIDTH FEATURE STRIP
   ============================================================ */

.feature-strip {
  position: relative;
  min-height: 640px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

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

.feature-strip__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.3) saturate(0.5);
}

.feature-strip__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    rgba(10,10,10,0.95) 0%,
    rgba(10,10,10,0.7) 50%,
    transparent 100%
  );
}

.feature-strip__content {
  position: relative;
  z-index: 1;
  max-width: 640px;
}

.feature-strip__eyebrow { margin-bottom: var(--space-6); }

.feature-strip__headline {
  font-size: clamp(var(--size-2xl), 4vw, var(--size-4xl));
  font-weight: var(--weight-black);
  line-height: var(--leading-tight);
  margin-bottom: var(--space-6);
}

.feature-strip__body {
  color: var(--color-text-secondary);
  line-height: var(--leading-loose);
  margin-bottom: var(--space-8);
}

/* ============================================================
   NEWS / UPDATES
   ============================================================ */

.news__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: var(--space-10);
}

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

.news-card {
  background: var(--color-surface-1);
  border: 1px solid var(--color-border);
  transition: border-color var(--duration-normal);
  cursor: pointer;
}

.news-card:hover { border-color: var(--color-accent); }

.news-card__media {
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--color-surface-2);
}

.news-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.6) saturate(0.6);
  transition: transform var(--duration-slow) var(--ease-out),
              filter var(--duration-slow) var(--ease-out);
}

.news-card:hover .news-card__img {
  transform: scale(1.04);
  filter: brightness(0.75) saturate(0.8);
}

.news-card__body {
  padding: var(--space-6);
}

.news-card__meta {
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.news-card__tag {
  font-size: var(--size-xs);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-accent);
}

.news-card__date {
  font-size: var(--size-xs);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
}

.news-card__title {
  font-size: var(--size-md);
  font-weight: var(--weight-semibold);
  line-height: var(--leading-snug);
  margin-bottom: var(--space-3);
  transition: color var(--duration-fast);
}

.news-card:hover .news-card__title { color: var(--color-accent); }

.news-card__excerpt {
  font-size: var(--size-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-loose);
}

/* ============================================================
   PARTNERS STRIP
   ============================================================ */

.partners {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface-1);
}

.partners__label {
  text-align: center;
  margin-bottom: var(--space-10);
}

.partners__logos {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-16);
  flex-wrap: wrap;
}

.partner-logo {
  height: 28px;
  width: auto;
  opacity: 0.3;
  filter: grayscale(1);
  transition: opacity var(--duration-normal), filter var(--duration-normal);
}

.partner-logo:hover {
  opacity: 0.7;
  filter: grayscale(0);
}

/* ============================================================
   CTA BANNER
   ============================================================ */

.cta-banner {
  position: relative;
  background: var(--color-surface-2);
  border-top: 1px solid var(--color-border);
  text-align: center;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--color-accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.cta-banner__eyebrow { margin-bottom: var(--space-6); }

.cta-banner__headline {
  font-size: clamp(var(--size-2xl), 4vw, var(--size-4xl));
  font-weight: var(--weight-black);
  margin-bottom: var(--space-6);
}

.cta-banner__sub {
  font-size: var(--size-md);
  color: var(--color-text-secondary);
  max-width: 50ch;
  margin: 0 auto var(--space-10);
}

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

/* ============================================================
   FOOTER
   ============================================================ */

.footer {
  background: var(--color-surface-1);
  border-top: 1px solid var(--color-border);
}

.footer__top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-12);
  padding: var(--space-16) 0;
  border-bottom: 1px solid var(--color-border);
}

.footer__brand-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.footer__brand-mark {
  width: 28px;
  height: 28px;
  background: var(--color-accent);
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  flex-shrink: 0;
}

.footer__brand-name {
  font-size: var(--size-md);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}

.footer__tagline {
  font-size: var(--size-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-loose);
  margin-bottom: var(--space-8);
}

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

.footer__social-link {
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--duration-fast), background var(--duration-fast);
}

.footer__social-link:hover {
  border-color: var(--color-accent);
  background: var(--color-accent-glow);
}

.footer__social-icon {
  width: 16px;
  height: 16px;
  background: var(--color-text-secondary);
  /* SVG icon placeholder */
}

.footer__col-title {
  font-size: var(--size-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-text-primary);
  margin-bottom: var(--space-6);
}

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

.footer__link {
  font-size: var(--size-sm);
  color: var(--color-text-muted);
  transition: color var(--duration-fast);
}

.footer__link:hover { color: var(--color-text-primary); }

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-6) 0;
}

.footer__legal {
  font-size: var(--size-xs);
  color: var(--color-text-muted);
  display: flex;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.footer__legal a:hover { color: var(--color-text-secondary); }

.footer__copyright {
  font-size: var(--size-xs);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
}

/* ============================================================
   SCROLL REVEAL ANIMATIONS
   ============================================================ */

[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--duration-slower) var(--ease-out),
              transform var(--duration-slower) var(--ease-out);
}

[data-reveal="left"] {
  transform: translateX(-24px);
}

[data-reveal="right"] {
  transform: translateX(24px);
}

[data-reveal].revealed {
  opacity: 1;
  transform: translate(0);
}

[data-reveal-delay="1"] { transition-delay: 100ms; }
[data-reveal-delay="2"] { transition-delay: 200ms; }
[data-reveal-delay="3"] { transition-delay: 300ms; }
[data-reveal-delay="4"] { transition-delay: 400ms; }

/* ============================================================
   UTILITY CLASSES
   ============================================================ */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.hide-mobile  { display: none; }
.show-mobile  { display: block; }

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (min-width: 768px) {
  .hide-mobile { display: block; }
  .show-mobile { display: none; }
}

@media (max-width: 1200px) {
  .systems__grid { grid-template-columns: repeat(2, 1fr); }
  .system-card--featured { grid-column: span 2; }
  .platform__grid { grid-template-columns: repeat(2, 1fr); }
  .footer__top { grid-template-columns: 1fr 1fr; gap: var(--space-8); }
}

@media (max-width: 1024px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat { border-bottom: 1px solid var(--color-border); }
  .capability { grid-template-columns: 1fr; }
  .capability__media { aspect-ratio: 16/9; }
  .mission__inner { grid-template-columns: 1fr; gap: var(--space-6); }
}

@media (max-width: 768px) {
  .nav__links   { display: none; }
  .nav__actions .btn { display: none; }
  .nav__hamburger { display: flex; }

  .systems__grid { grid-template-columns: 1fr; }
  .system-card--featured { grid-column: span 1; }

  .news__grid { grid-template-columns: 1fr; }

  .footer__top { grid-template-columns: 1fr; }

  .cta-banner__actions { flex-direction: column; align-items: center; }

  .capability--reverse { direction: ltr; }
}

@media (max-width: 480px) {
  .stats { grid-template-columns: 1fr 1fr; }
  .platform__grid { grid-template-columns: 1fr; }
  .partners__logos { gap: var(--space-8); }
  .hero__actions { flex-direction: column; }
}