/* ═══════════════════════════════════════════════════════════
   COMPONENTS — Nav · Buttons · Cards · Sections · Footer
═══════════════════════════════════════════════════════════ */

/* ── 1. NAVIGATION ─────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  transition: background var(--transition-heavy),
              box-shadow var(--transition-heavy),
              backdrop-filter var(--transition-heavy);
}

.nav.nav--scrolled {
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-elevated);
}

.nav.nav--scrolled .nav__logo-name { color: var(--primary); }
.nav.nav--scrolled .nav__logo-sub  { color: var(--on-surface-variant); }
.nav.nav--scrolled .nav__link      { color: var(--on-surface); }
.nav.nav--scrolled .nav__link:hover { color: var(--secondary); }
.nav.nav--scrolled .nav__hamburger span { background: var(--primary); }

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.nav__logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
  gap: 2px;
}
.nav__logo-name {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--on-primary);
  transition: color var(--transition-smooth);
}
.nav__logo-sub {
  font-family: var(--font-body);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
  transition: color var(--transition-smooth);
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: var(--sp-40);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--sp-32);
}

.nav__link {
  font-size: var(--label-md);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.85);
  transition: color var(--transition-smooth);
  position: relative;
}
.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--tertiary);
  transition: width var(--transition-heavy);
}
.nav__link:hover { color: var(--on-primary); }
.nav__link:hover::after,
.nav__link.active::after { width: 100%; }
.nav__link.active { color: var(--on-primary); }

.nav__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-8);
  padding: 0.6rem 1.25rem;
  background: linear-gradient(135deg, var(--tertiary-fixed-dim), var(--tertiary-fixed));
  color: var(--on-tertiary);
  font-family: var(--font-body);
  font-size: var(--label-md);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: opacity var(--transition-smooth), transform var(--transition-smooth);
}
.nav__cta:hover { opacity: 0.88; transform: translateY(-1px); }

/* Hamburger */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  background: none;
  border: none;
}
.nav__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--on-primary);
  border-radius: 1px;
  transition: transform var(--transition-heavy), opacity var(--transition-smooth);
}
.nav__hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__hamburger.open span:nth-child(2) { opacity: 0; }
.nav__hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.nav__mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: rgba(0, 3, 10, 0.97);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: var(--sp-32) var(--container-pad);
  flex-direction: column;
  gap: var(--sp-24);
  border-top: 1px solid rgba(255,255,255,0.06);
  z-index: 999;
}
.nav__mobile.open { display: flex; }

.nav__mobile-link {
  font-family: var(--font-display);
  font-size: var(--headline-sm);
  font-weight: 700;
  color: rgba(255,255,255,0.85);
  padding-block: var(--sp-8);
  transition: color var(--transition-smooth);
}
.nav__mobile-link:hover { color: var(--tertiary); }

.nav__mobile-cta {
  display: inline-flex;
  align-self: flex-start;
  padding: 0.75rem 1.5rem;
  background: linear-gradient(135deg, var(--tertiary-fixed-dim), var(--tertiary-fixed));
  color: var(--on-tertiary);
  font-weight: 700;
  font-size: var(--label-md);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  margin-top: var(--sp-8);
}

/* ── 2. BUTTONS ────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-8);
  padding: 0.875rem 2rem;
  font-family: var(--font-body);
  font-size: var(--label-md);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: background var(--transition-heavy), transform var(--transition-smooth), color var(--transition-smooth);
  cursor: pointer;
  border: none;
}
.btn:hover { transform: translateY(-2px); }

.btn--primary {
  background: linear-gradient(135deg, var(--tertiary-fixed-dim), var(--tertiary-fixed));
  color: var(--on-tertiary);
}
.btn--primary:hover { opacity: 0.9; }

.btn--secondary {
  background: var(--surface-container-highest);
  color: var(--on-surface);
}
.btn--secondary:hover { background: var(--secondary); color: var(--on-secondary); }

.btn--ghost {
  background: transparent;
  color: var(--on-primary);
  border: 1.5px solid rgba(255,255,255,0.3);
}
.btn--ghost:hover { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.6); }

.btn--outline-gold {
  background: transparent;
  color: var(--tertiary);
  border: 1.5px solid var(--tertiary);
}
.btn--outline-gold:hover { background: var(--tertiary); color: var(--on-tertiary); }

/* ── 3. SECTION WRAPPERS ───────────────────────────────── */
.section {
  padding-block: var(--sp-96);
}
.section--dark { background: var(--primary); }
.section--low  { background: var(--surface-container-low); }
.section--container { background: var(--surface-container); }

.section__eyebrow {
  display: flex;
  align-items: center;
  gap: var(--sp-12);
  margin-bottom: var(--sp-16);
}
.section__eyebrow-line {
  display: block;
  width: 32px;
  height: 2px;
  background: var(--tertiary);
  flex-shrink: 0;
}

/* ── 4. HERO (HOME) ────────────────────────────────────── */
.hero {
  min-height: 100vh;
  background: var(--primary);
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 80% 50%, rgba(44,92,175,0.12) 0%, transparent 60%),
    radial-gradient(ellipse 40% 40% at 10% 80%, rgba(233,193,118,0.06) 0%, transparent 50%);
  pointer-events: none;
}

/* Architectural grid lines */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-64);
  align-items: center;
  padding-block: var(--sp-80);
  position: relative;
  z-index: 1;
}

.hero__content {}
.hero__eyebrow {
  display: flex;
  align-items: center;
  gap: var(--sp-12);
  margin-bottom: var(--sp-32);
}
.hero__eyebrow-line {
  display: block;
  width: 48px;
  height: 2px;
  background: var(--tertiary);
}
.hero__eyebrow-text {
  font-size: var(--label-sm);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--tertiary);
}

.hero__heading {
  color: var(--on-primary);
  margin-bottom: var(--sp-24);
}
.hero__heading em {
  font-style: normal;
  color: var(--tertiary);
}

.hero__sub {
  color: rgba(255,255,255,0.65);
  font-size: 1.0625rem;
  line-height: 1.7;
  max-width: 480px;
  margin-bottom: var(--sp-48);
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: var(--sp-16);
  flex-wrap: wrap;
}

/* Hero Visual */
.hero__visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.hero__frame {
  position: relative;
  width: 100%;
  max-width: 520px;
  aspect-ratio: 4/5;
}

.hero__frame-main {
  position: absolute;
  inset: 0;
  background: linear-gradient(145deg, #0d1a2e 0%, #071020 40%, #030810 100%);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.hero__frame-main::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(0deg, rgba(0,3,10,0.8) 0%, transparent 40%),
    linear-gradient(135deg, rgba(44,92,175,0.2) 0%, transparent 50%);
}

/* Structural decoration lines inside hero visual */
.hero__frame-lines {
  position: absolute;
  inset: 24px;
  border: 1px solid rgba(233,193,118,0.15);
  border-radius: var(--radius-sm);
}
.hero__frame-lines::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 100%;
  background: rgba(233,193,118,0.08);
}
.hero__frame-lines::after {
  content: '';
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 100%;
  height: 1px;
  background: rgba(233,193,118,0.08);
}

.hero__frame-stat {
  position: absolute;
  bottom: var(--sp-32);
  left: var(--sp-32);
  z-index: 2;
}
.hero__frame-stat-num {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--on-primary);
  line-height: 1;
}
.hero__frame-stat-num span { color: var(--tertiary); }
.hero__frame-stat-label {
  font-size: var(--label-sm);
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-top: var(--sp-4);
}

/* Gold accent card overlapping */
.hero__accent-card {
  position: absolute;
  top: var(--sp-32);
  right: -var(--sp-24);
  right: -24px;
  background: var(--surface-container-lowest);
  padding: var(--sp-20, 1.25rem) var(--sp-24);
  border-left: 3px solid var(--tertiary);
  box-shadow: var(--shadow-deep);
  border-radius: var(--radius-sm);
  max-width: 200px;
  z-index: 3;
}
.hero__accent-card-num {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--primary);
  line-height: 1;
}
.hero__accent-card-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
  margin-top: 4px;
}

/* ── 5. PAGE HERO (inner pages) ────────────────────────── */
.page-hero {
  background: var(--primary);
  padding-top: calc(var(--nav-height) + var(--sp-80));
  padding-bottom: var(--sp-80);
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 80% at 90% 50%, rgba(44,92,175,0.10) 0%, transparent 60%);
  pointer-events: none;
}
.page-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
}
.page-hero__inner { position: relative; z-index: 1; }
.page-hero__eyebrow {
  display: flex;
  align-items: center;
  gap: var(--sp-12);
  margin-bottom: var(--sp-20);
}
.page-hero__eyebrow-line {
  display: block;
  width: 48px;
  height: 2px;
  background: var(--tertiary);
}
.page-hero__eyebrow-text {
  font-size: var(--label-sm);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--tertiary);
}
.page-hero__heading {
  color: var(--on-primary);
  max-width: 700px;
  margin-bottom: var(--sp-24);
}
.page-hero__sub {
  color: rgba(255,255,255,0.6);
  font-size: 1.0625rem;
  line-height: 1.7;
  max-width: 560px;
}

/* ── 6. STATS BAR ──────────────────────────────────────── */
.stats {
  background: var(--secondary);
  padding-block: var(--sp-48);
}
.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-32);
  text-align: center;
}
.stats__item {}
.stats__num {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--on-primary);
  line-height: 1;
  margin-bottom: var(--sp-8);
}
.stats__num span { color: var(--tertiary); }
.stats__label {
  font-size: var(--label-sm);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.65);
}

/* ── 7. SERVICE CARDS ──────────────────────────────────── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}

.service-card {
  padding: var(--sp-48) var(--sp-40);
  background: var(--surface-container-low);
  position: relative;
  transition: background var(--transition-heavy);
}
.service-card:nth-child(even) {
  background: var(--surface-container);
}
.service-card:hover { background: var(--primary); }
.service-card:hover .service-card__num,
.service-card:hover .service-card__title,
.service-card:hover .service-card__desc { color: var(--on-primary); }
.service-card:hover .service-card__num  { color: var(--tertiary); }
.service-card:hover .service-card__icon path { stroke: var(--tertiary); }
.service-card:hover .service-card__arrow { color: var(--tertiary); }

.service-card__num {
  font-family: var(--font-display);
  font-size: var(--label-sm);
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--tertiary-dim);
  margin-bottom: var(--sp-24);
  transition: color var(--transition-heavy);
}
.service-card__icon {
  width: 40px;
  height: 40px;
  margin-bottom: var(--sp-24);
}
.service-card__icon path { transition: stroke var(--transition-heavy); }
.service-card__title {
  font-family: var(--font-display);
  font-size: var(--headline-sm);
  font-weight: 700;
  color: var(--primary);
  margin-bottom: var(--sp-16);
  transition: color var(--transition-heavy);
}
.service-card__desc {
  color: var(--on-surface-variant);
  font-size: var(--body-md);
  line-height: 1.65;
  transition: color var(--transition-heavy);
}
.service-card__arrow {
  display: inline-block;
  margin-top: var(--sp-24);
  color: var(--secondary);
  font-size: 1.25rem;
  transition: transform var(--transition-heavy), color var(--transition-heavy);
}
.service-card:hover .service-card__arrow { transform: translateX(6px); }

/* ── 8. BLUEPRINT CARDS (Projects) ─────────────────────── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-24);
}

.blueprint-card {
  position: relative;
  aspect-ratio: 3/4;
  overflow: hidden;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: block;
}
.blueprint-card--wide { grid-column: span 2; aspect-ratio: 16/9; }

.blueprint-card__bg {
  position: absolute;
  inset: 0;
  transition: transform 600ms ease-out;
}
.blueprint-card:hover .blueprint-card__bg { transform: scale(1.06); }

/* Project image gradient backgrounds */
.bg-project-1 { background: linear-gradient(145deg, #0f2040 0%, #08152e 40%, #020810 100%); }
.bg-project-2 { background: linear-gradient(145deg, #1a1206 0%, #120c04 40%, #060300 100%); }
.bg-project-3 { background: linear-gradient(145deg, #0d1a10 0%, #081208 40%, #030603 100%); }
.bg-project-4 { background: linear-gradient(145deg, #1a0a0a 0%, #120505 40%, #060000 100%); }
.bg-project-5 { background: linear-gradient(145deg, #080a20 0%, #050718 40%, #020310 100%); }
.bg-project-6 { background: linear-gradient(145deg, #121a0a 0%, #0c1206 40%, #040600 100%); }

/* Overlay layers */
.blueprint-card::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    180deg,
    transparent 30%,
    rgba(0,3,10,0.5) 60%,
    rgba(0,3,10,0.95) 100%
  );
  transition: opacity var(--transition-heavy);
}
.blueprint-card:hover::before {
  background: linear-gradient(
    180deg,
    rgba(0,3,10,0.3) 0%,
    rgba(0,3,10,0.6) 60%,
    rgba(0,3,10,0.98) 100%
  );
}

/* Blueprint structural lines decoration */
.blueprint-card__lines {
  position: absolute;
  inset: 20px;
  border: 1px solid rgba(233,193,118,0.1);
  z-index: 2;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-heavy);
}
.blueprint-card:hover .blueprint-card__lines { opacity: 1; }

.blueprint-card__content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--sp-32);
  z-index: 3;
  transform: translateY(30%);
  transition: transform var(--transition-heavy);
}
.blueprint-card:hover .blueprint-card__content { transform: translateY(0); }

.blueprint-card__category {
  font-size: var(--label-sm);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--tertiary);
  margin-bottom: var(--sp-8);
}
.blueprint-card__title {
  font-family: var(--font-display);
  font-size: var(--headline-sm);
  font-weight: 700;
  color: var(--on-primary);
  line-height: 1.25;
  margin-bottom: var(--sp-12);
}
.blueprint-card__meta {
  display: flex;
  align-items: center;
  gap: var(--sp-16);
  font-size: var(--label-sm);
  color: rgba(255,255,255,0.55);
  margin-bottom: var(--sp-16);
  opacity: 0;
  transition: opacity var(--transition-slow);
}
.blueprint-card:hover .blueprint-card__meta { opacity: 1; transition-delay: 100ms; }
.blueprint-card__meta-dot {
  width: 3px;
  height: 3px;
  background: var(--tertiary);
  border-radius: 50%;
}

.blueprint-card__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-8);
  font-size: var(--label-sm);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--tertiary);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--transition-slow), transform var(--transition-heavy);
}
.blueprint-card:hover .blueprint-card__cta {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 150ms;
}

/* ── 9. FEATURE / ABOUT TEASER ─────────────────────────── */
.feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  align-items: stretch;
}

.feature__image {
  position: relative;
  min-height: 560px;
  background: linear-gradient(145deg, #0d1a2e 0%, #071020 40%, #030810 100%);
  overflow: hidden;
}
.feature__image::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(44,92,175,0.25) 0%, transparent 50%),
    linear-gradient(0deg, rgba(0,3,10,0.6) 0%, transparent 50%);
}
/* Structural lines in feature image */
.feature__image-inner {
  position: absolute;
  inset: 40px;
  border: 1px solid rgba(233,193,118,0.12);
}

.feature__content {
  background: var(--surface-container-low);
  padding: var(--sp-80) var(--sp-64);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.feature__list {
  margin-top: var(--sp-40);
  display: flex;
  flex-direction: column;
  gap: var(--sp-24);
}
.feature__list-item {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-16);
}
.feature__list-marker {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  background: var(--secondary-container);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}
.feature__list-marker svg { width: 14px; height: 14px; }

/* ── 10. VALUE CARDS ───────────────────────────────────── */
.values-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-4);
}
.value-card {
  background: var(--surface-container-low);
  padding: var(--sp-48) var(--sp-40);
  position: relative;
  transition: background var(--transition-heavy);
}
.value-card:hover { background: var(--surface-container); }

.value-card__num {
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--outline-variant);
  line-height: 1;
  margin-bottom: var(--sp-16);
  transition: color var(--transition-heavy);
}
.value-card:hover .value-card__num { color: rgba(233,193,118,0.15); }
.value-card__title {
  font-family: var(--font-display);
  font-size: var(--headline-sm);
  font-weight: 700;
  color: var(--primary);
  margin-bottom: var(--sp-12);
}
.value-card__desc {
  color: var(--on-surface-variant);
  line-height: 1.65;
}
.value-card__bar {
  margin-top: var(--sp-24);
  height: 3px;
  width: 48px;
  background: var(--tertiary);
  border-radius: var(--radius-sm);
}

/* ── 11. CTA SECTION ───────────────────────────────────── */
.cta-section {
  background: var(--primary);
  padding-block: var(--sp-96);
  position: relative;
  overflow: hidden;
  text-align: center;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 50%, rgba(44,92,175,0.12) 0%, transparent 60%);
  pointer-events: none;
}
.cta-section__inner { position: relative; z-index: 1; }
.cta-section__heading {
  color: var(--on-primary);
  margin-bottom: var(--sp-16);
  max-width: 640px;
  margin-inline: auto;
}
.cta-section__sub {
  color: rgba(255,255,255,0.55);
  max-width: 480px;
  margin-inline: auto;
  margin-bottom: var(--sp-48);
  font-size: 1.0625rem;
}
.cta-section__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-16);
  flex-wrap: wrap;
}

/* ── 12. CONTACT ───────────────────────────────────────── */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--sp-80);
  align-items: start;
}

.contact-info__items {
  margin-top: var(--sp-40);
  display: flex;
  flex-direction: column;
  gap: var(--sp-32);
}
.contact-info__item {
  display: flex;
  gap: var(--sp-16);
}
.contact-info__icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  background: var(--surface-container);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}
.contact-info__icon svg { width: 20px; height: 20px; }
.contact-info__label {
  font-size: var(--label-sm);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
  margin-bottom: 4px;
}
.contact-info__value {
  font-size: var(--title-md);
  font-weight: 500;
  color: var(--on-surface);
}

/* Form */
.form { display: flex; flex-direction: column; gap: var(--sp-24); }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-24); }

.form-field { display: flex; flex-direction: column; gap: var(--sp-8); }
.form-field label {
  font-size: var(--label-md);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
}
.form-field input,
.form-field textarea,
.form-field select {
  padding: 0.875rem var(--sp-16);
  background: var(--surface-container-low);
  border: none;
  border-bottom: 2px solid var(--surface-container-highest);
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  color: var(--on-surface);
  font-size: var(--body-lg);
  transition: border-color var(--transition-smooth), background var(--transition-smooth);
  outline: none;
}
.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
  background: var(--surface-container);
  border-bottom-color: var(--secondary);
}
.form-field textarea { resize: vertical; min-height: 140px; }

/* ── 13. FOOTER ────────────────────────────────────────── */
.footer {
  background: var(--primary);
  padding-top: var(--sp-80);
  padding-bottom: var(--sp-48);
}
.footer__top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.25fr;
  gap: var(--sp-48);
  padding-bottom: var(--sp-64);
}
.footer__brand-name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--on-primary);
  margin-bottom: 4px;
}
.footer__brand-sub {
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.35);
  margin-bottom: var(--sp-24);
}
.footer__tagline {
  color: rgba(255,255,255,0.5);
  font-size: var(--body-md);
  line-height: 1.65;
  max-width: 280px;
}

.footer__col-title {
  font-size: var(--label-sm);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--tertiary);
  margin-bottom: var(--sp-24);
}
.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--sp-16);
}
.footer__link {
  color: rgba(255,255,255,0.55);
  font-size: var(--body-md);
  transition: color var(--transition-smooth);
}
.footer__link:hover { color: var(--on-primary); }

.footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-12);
  color: rgba(255,255,255,0.55);
  font-size: var(--body-md);
  line-height: 1.5;
  margin-bottom: var(--sp-16);
}
.footer__contact-item svg { flex-shrink: 0; margin-top: 2px; opacity: 0.6; }

.footer__divider {
  height: 1px;
  background: rgba(255,255,255,0.06);
  margin-bottom: var(--sp-32);
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--sp-16);
}
.footer__copy {
  color: rgba(255,255,255,0.3);
  font-size: var(--label-sm);
}
.footer__legal {
  display: flex;
  gap: var(--sp-24);
}
.footer__legal a {
  color: rgba(255,255,255,0.3);
  font-size: var(--label-sm);
  transition: color var(--transition-smooth);
}
.footer__legal a:hover { color: rgba(255,255,255,0.6); }

/* ── 14. PROGRESS RAIL ─────────────────────────────────── */
.progress-rail {
  position: fixed;
  left: 0;
  top: 0;
  width: 4px;
  height: 0%;
  background: linear-gradient(180deg, var(--tertiary-fixed-dim), var(--tertiary-fixed));
  z-index: 900;
  transition: height 50ms linear;
}

/* ── 15. PROJECT FILTER ────────────────────────────────── */
.filter-tabs {
  display: flex;
  gap: var(--sp-4);
  flex-wrap: wrap;
  margin-bottom: var(--sp-48);
}
.filter-tab {
  padding: 0.5rem 1.25rem;
  font-family: var(--font-body);
  font-size: var(--label-md);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--surface-container-low);
  color: var(--on-surface-variant);
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: background var(--transition-smooth), color var(--transition-smooth);
}
.filter-tab:hover { background: var(--surface-container); color: var(--on-surface); }
.filter-tab.active {
  background: var(--primary);
  color: var(--on-primary);
}

/* ── 16. PROCESS STEPS ─────────────────────────────────── */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}
.process-steps::before {
  content: '';
  position: absolute;
  top: 28px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: var(--surface-container-highest);
}
.process-step {
  padding: var(--sp-40) var(--sp-32);
  text-align: center;
  position: relative;
  z-index: 1;
}
.process-step__dot {
  width: 56px;
  height: 56px;
  background: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--sp-24);
  position: relative;
  z-index: 2;
}
.process-step__dot-inner {
  width: 20px;
  height: 20px;
  background: var(--tertiary);
  border-radius: 50%;
}
.process-step__num {
  position: absolute;
  top: -6px;
  right: -6px;
  width: 22px;
  height: 22px;
  background: var(--secondary);
  border-radius: 50%;
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--on-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}
.process-step__title {
  font-family: var(--font-display);
  font-size: var(--title-lg);
  font-weight: 700;
  color: var(--primary);
  margin-bottom: var(--sp-8);
}
.process-step__desc {
  font-size: var(--body-md);
  color: var(--on-surface-variant);
  line-height: 1.6;
}

/* ── 17. SERVICES DETAIL ───────────────────────────────── */
.service-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  align-items: stretch;
}
.service-detail:nth-child(even) { direction: rtl; }
.service-detail:nth-child(even) > * { direction: ltr; }

.service-detail__image {
  min-height: 500px;
  position: relative;
  overflow: hidden;
}
.service-detail__image::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(44,92,175,0.2) 0%, transparent 50%),
              linear-gradient(0deg, rgba(0,3,10,0.5) 0%, transparent 50%);
}

.service-detail__content {
  padding: var(--sp-80) var(--sp-64);
  background: var(--surface-container-low);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.service-detail:nth-child(even) .service-detail__content {
  background: var(--surface-container);
}

.service-detail__features {
  margin-top: var(--sp-32);
  display: flex;
  flex-direction: column;
  gap: var(--sp-12);
}
.service-detail__feature {
  display: flex;
  align-items: center;
  gap: var(--sp-12);
  font-size: var(--body-md);
  color: var(--on-surface-variant);
}
.service-detail__feature::before {
  content: '';
  flex-shrink: 0;
  width: 6px;
  height: 6px;
  background: var(--tertiary);
  border-radius: 50%;
}

/* ── 18. RESPONSIVE ────────────────────────────────────── */
@media (max-width: 1024px) {
  .hero__inner              { grid-template-columns: 1fr; }
  .hero__visual             { display: none; }
  .feature                  { grid-template-columns: 1fr; }
  .feature__image           { min-height: 360px; }
  .feature__content         { padding: var(--sp-64) var(--sp-48); }
  .service-detail           { grid-template-columns: 1fr; }
  .service-detail:nth-child(even) { direction: ltr; }
  .service-detail__image    { min-height: 320px; }
  .service-detail__content  { padding: var(--sp-48) var(--sp-40); }
  .footer__top              { grid-template-columns: 1fr 1fr; }
  .process-steps            { grid-template-columns: repeat(2, 1fr); }
  .process-steps::before    { display: none; }
}

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

  .hero__inner  { padding-block: var(--sp-64); }

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

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

  .projects-grid { grid-template-columns: 1fr; }
  .blueprint-card--wide { grid-column: span 1; aspect-ratio: 3/4; }

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

  .contact-layout { grid-template-columns: 1fr; gap: var(--sp-48); }

  .form-row { grid-template-columns: 1fr; }

  .footer__top  { grid-template-columns: 1fr; gap: var(--sp-40); }
  .footer__bottom { flex-direction: column; text-align: center; }
  .footer__legal { justify-content: center; }

  .process-steps { grid-template-columns: 1fr; }
  .process-steps::before { display: none; }

  .cta-section__actions { flex-direction: column; align-items: center; }
  .hero__actions { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
  .stats__grid { grid-template-columns: 1fr; }
  .filter-tabs { gap: var(--sp-8); }
}