/* =========================================================================
   Layout: header, navigation, hero, sections, grids, footer
   ========================================================================= */

/* --- Header ------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: rgba(255, 255, 255, 0.88);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 72px;
}

/* Logo */
.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--navy-800);
  font-weight: var(--fw-bold);
  flex: none;
}
.logo:hover {
  text-decoration: none;
}
.logo__mark {
  flex: none;
  display: inline-flex;
  line-height: 0;
  border-radius: 9px;
}
.logo__mark img {
  display: block;
  height: 38px;
  width: auto;
}
.logo__text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}
.logo__name {
  font-size: 1.12rem;
  letter-spacing: -0.02em;
  color: var(--navy-800);
}
.logo__suffix {
  margin-top: 4px;
  font-size: 0.6rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* Primary nav (desktop) */
.primary-nav {
  display: flex;
  align-items: center;
  gap: clamp(0.5rem, 1.5vw, 1.5rem);
  margin-left: auto;
}
.nav__list {
  display: flex;
  align-items: center;
  gap: 0.1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav__item {
  position: relative;
}
.nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  padding: 0.55rem 0.72rem;
  border-radius: var(--radius-sm);
  color: var(--slate-700);
  font-weight: var(--fw-medium);
  font-size: 0.97rem;
  transition: color var(--dur-fast) var(--ease),
    background-color var(--dur-fast) var(--ease);
}
.nav__link:hover {
  color: var(--navy-800);
  background: var(--surface-2);
  text-decoration: none;
}
.nav__link.is-active {
  color: var(--navy-800);
  font-weight: var(--fw-semibold);
}
.nav__link.is-active::after {
  content: "";
  position: absolute;
  left: 0.72rem;
  right: 0.72rem;
  bottom: 0.2rem;
  height: 2px;
  border-radius: 2px;
  background: var(--teal-500);
}

/* Services disclosure + mega menu */
.nav__disclosure {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-left: -0.5rem;
  padding: 0.4rem;
  color: var(--slate-500);
  border-radius: 6px;
}
.nav__disclosure:hover {
  color: var(--navy-800);
  background: var(--surface-2);
}
.nav__disclosure svg {
  transition: transform var(--dur) var(--ease);
}
.nav__mega {
  position: absolute;
  top: calc(100% + 0.6rem);
  left: 50%;
  width: min(640px, 92vw);
  padding: 1rem;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateX(-50%) translateY(8px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease),
    visibility var(--dur) var(--ease);
  z-index: 60;
}
.nav__item--menu:hover .nav__mega,
.nav__item--menu:focus-within .nav__mega,
.nav__item--menu.is-open .nav__mega {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}
.nav__item--menu.is-open .nav__disclosure svg {
  transform: rotate(180deg);
}
.mega__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.35rem;
}
.mega__item {
  display: flex;
  gap: 0.75rem;
  padding: 0.7rem;
  border-radius: var(--radius);
  color: var(--navy-800);
}
.mega__item:hover {
  background: var(--surface);
  text-decoration: none;
}
.mega__icon {
  flex: none;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--surface-2);
  color: var(--blue-600);
  transition: background-color var(--dur) var(--ease),
    color var(--dur) var(--ease);
}
.mega__item:hover .mega__icon {
  background: var(--navy-800);
  color: var(--teal-300);
}
.mega__text {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}
.mega__title {
  font-weight: var(--fw-semibold);
  font-size: 0.95rem;
}
.mega__desc {
  font-size: var(--fs-xs);
  line-height: 1.45;
  color: var(--color-text-soft);
}
.mega__all {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.4rem;
  padding: 0.7rem;
  font-weight: var(--fw-semibold);
  font-size: 0.92rem;
  border-top: 1px solid var(--color-border);
}

.primary-nav__actions {
  display: flex;
  align-items: center;
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  position: relative;
  z-index: calc(var(--z-drawer) + 1);
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  color: var(--navy-800);
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}
.nav-toggle:hover {
  background: var(--surface-2);
}
.nav-toggle__icon {
  display: grid;
  place-items: center;
}
.nav-toggle__icon svg {
  grid-area: 1 / 1;
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.nav-toggle__close {
  opacity: 0;
  transform: rotate(-90deg) scale(0.6);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__open {
  opacity: 0;
  transform: rotate(90deg) scale(0.6);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__close {
  opacity: 1;
  transform: none;
}

.nav-scrim {
  position: fixed;
  inset: 0;
  z-index: var(--z-scrim);
  background: rgba(7, 26, 47, 0.5);
  -webkit-backdrop-filter: blur(2px);
  backdrop-filter: blur(2px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--dur) var(--ease), visibility var(--dur) var(--ease);
}

@media (max-width: 60em) {
  .nav-toggle {
    display: inline-flex;
  }
  .primary-nav {
    position: fixed;
    inset: 0 0 0 auto;
    width: min(360px, 86vw);
    margin: 0;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    padding: 5.75rem 1.25rem 2rem;
    background: #fff;
    border-left: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    transform: translateX(100%);
    visibility: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
    z-index: var(--z-drawer);
    transition: transform var(--dur) var(--ease-out),
      visibility var(--dur) var(--ease);
  }
  body.nav-open .primary-nav {
    transform: translateX(0);
    visibility: visible;
  }
  body.nav-open .nav-scrim {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }
  .nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0.1rem;
    width: 100%;
  }
  .nav__link {
    width: 100%;
    padding: 0.85rem 0.65rem;
    font-size: 1.05rem;
  }
  .nav__link.is-active::after {
    left: 0.65rem;
    right: auto;
    width: 22px;
    bottom: 0.55rem;
  }
  .nav__item--menu {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
  }
  .nav__item--menu .nav__link {
    flex: 1;
    width: auto;
  }
  .nav__mega {
    position: static;
    width: 100%;
    padding: 0.2rem 0 0.5rem 0.6rem;
    border: none;
    box-shadow: none;
    transform: none;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    display: none;
  }
  .nav__item--menu.is-open .nav__mega {
    display: block;
  }
  .mega__grid {
    grid-template-columns: 1fr;
  }
  .mega__desc {
    display: none;
  }
  .primary-nav__actions {
    margin-top: 1.25rem;
    width: 100%;
  }
  .primary-nav__actions .btn {
    width: 100%;
    justify-content: center;
  }
}

/* --- Breadcrumbs -------------------------------------------------------- */
.breadcrumbs {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  font-size: var(--fs-sm);
}
.breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
  padding-block: 0.85rem;
  list-style: none;
}
.breadcrumbs__item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text-muted);
}
.breadcrumbs__item:not(:first-child)::before {
  content: "/";
  color: var(--color-border-strong);
}
.breadcrumbs__item a {
  color: var(--color-text-soft);
}
.breadcrumbs__item--current span {
  color: var(--color-text);
  font-weight: var(--fw-semibold);
}

/* --- Sections ----------------------------------------------------------- */
.section {
  padding-block: var(--section-y);
}
.section--muted {
  background: var(--color-surface);
}
.section--fine {
  padding-block: clamp(1.25rem, 1rem + 1vw, 2rem);
}
.section--trust {
  padding-block: clamp(1.5rem, 1.1rem + 1.4vw, 2.25rem);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.section-head {
  max-width: 64ch;
  margin-bottom: clamp(1.75rem, 1.2rem + 1.6vw, 2.75rem);
}
.section-head--center {
  margin-inline: auto;
  text-align: center;
}
.section-head__intro {
  margin-top: 0.85rem;
  font-size: var(--fs-lead);
  line-height: 1.55;
  color: var(--color-text-soft);
}

/* --- Hero --------------------------------------------------------------- */
.hero {
  position: relative;
  overflow: hidden;
  color: #fff;
  background: linear-gradient(155deg, var(--navy-900), var(--navy-700) 58%, var(--navy-600));
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(
      62% 80% at 82% 6%,
      rgba(45, 212, 191, 0.18),
      transparent 60%
    ),
    radial-gradient(50% 60% at 6% 96%, rgba(59, 130, 246, 0.2), transparent 60%);
}
.hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(2rem, 1rem + 3vw, 4rem);
  align-items: center;
  padding-block: clamp(3.5rem, 2.5rem + 4vw, 6.5rem);
}
.hero__title {
  font-size: var(--fs-display);
  color: #fff;
  max-width: 16ch;
}
.hero__lead {
  margin-top: 1.25rem;
  max-width: 46ch;
  font-size: var(--fs-lead);
  line-height: 1.55;
  color: var(--color-on-dark);
}
.hero__actions {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}
.hero__art {
  width: 100%;
  filter: drop-shadow(0 30px 60px rgba(2, 12, 27, 0.4));
}

@media (max-width: 56em) {
  .hero__grid {
    grid-template-columns: 1fr;
  }
  .hero__media {
    max-width: 460px;
    margin-inline: auto;
  }
  .hero__title {
    max-width: 18ch;
  }
}

/* --- Page hero (inner pages) ------------------------------------------- */
.page-hero {
  position: relative;
  overflow: hidden;
  color: #fff;
  background: linear-gradient(160deg, var(--navy-900), var(--navy-700));
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(
    60% 70% at 88% 0%,
    rgba(45, 212, 191, 0.16),
    transparent 62%
  );
}
.page-hero__grid {
  position: relative;
  padding-block: clamp(2.75rem, 2rem + 3vw, 4.75rem);
}
.page-hero__grid--split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(2rem, 1rem + 3vw, 3.5rem);
  align-items: center;
}
.page-hero__title {
  color: #fff;
  max-width: 20ch;
}
.page-hero__lead {
  margin-top: 1rem;
  max-width: 56ch;
  font-size: var(--fs-lead);
  line-height: 1.55;
  color: var(--color-on-dark);
}
.page-hero__actions {
  margin-top: 1.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.page-hero__media {
  filter: drop-shadow(0 24px 48px rgba(2, 12, 27, 0.4));
}
@media (max-width: 56em) {
  .page-hero__grid--split {
    grid-template-columns: 1fr;
  }
  .page-hero__media {
    max-width: 420px;
    margin-inline: auto;
    order: -1;
  }
}

/* --- Grids -------------------------------------------------------------- */
.card-grid {
  display: grid;
  gap: clamp(1rem, 0.6rem + 1.1vw, 1.5rem);
}
.card-grid--2 {
  grid-template-columns: repeat(2, 1fr);
}
.card-grid--3 {
  grid-template-columns: repeat(3, 1fr);
}
@media (max-width: 60em) {
  .card-grid--3 {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 40em) {
  .card-grid--2,
  .card-grid--3 {
    grid-template-columns: 1fr;
  }
}

/* --- Composite layouts -------------------------------------------------- */
.feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 1rem + 3vw, 3.5rem);
  align-items: center;
}
.feature__title {
  margin-bottom: 1rem;
}
.feature__text {
  margin-bottom: 1.25rem;
  font-size: var(--fs-lead);
  color: var(--color-text-soft);
}
.feature__actions {
  margin-top: 1.5rem;
}

.overview-split {
  display: grid;
  grid-template-columns: 1.4fr 0.9fr;
  gap: clamp(1.5rem, 1rem + 2vw, 2.5rem);
  align-items: start;
}
.overview-split .prose p {
  color: var(--color-text-soft);
}

.prose-split {
  display: grid;
  grid-template-columns: 1.5fr 0.8fr;
  gap: clamp(1.5rem, 1rem + 2vw, 2.75rem);
  align-items: start;
}
.prose-split__main p {
  color: var(--color-text-soft);
  font-size: 1.075rem;
}
.prose-split__main p + p {
  margin-top: 1rem;
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(1.5rem, 1rem + 2vw, 3rem);
  align-items: start;
}

@media (max-width: 56em) {
  .feature,
  .overview-split,
  .prose-split,
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .feature__media {
    max-width: 480px;
  }
}

/* --- Trust strip -------------------------------------------------------- */
.trust {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem 1.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.trust__item {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-weight: var(--fw-semibold);
  font-size: 0.98rem;
  color: var(--color-text);
}
.trust__icon {
  flex: none;
  color: var(--teal-600);
}
@media (max-width: 60em) {
  .trust {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 30em) {
  .trust {
    grid-template-columns: 1fr;
  }
}

/* --- Footer ------------------------------------------------------------- */
.site-footer {
  background: var(--navy-900);
  color: var(--color-on-dark-soft);
}
.site-footer__grid {
  display: grid;
  grid-template-columns: 1.6fr repeat(3, 1fr) 1.2fr;
  gap: clamp(1.5rem, 1rem + 2vw, 2.5rem);
  padding-block: clamp(3rem, 2rem + 3vw, 4.5rem);
}
.site-footer__heading {
  margin-bottom: 1rem;
  color: #fff;
  font-size: 0.8rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.site-footer__about {
  margin: 1.1rem 0 1.25rem;
  max-width: 34ch;
  font-size: 0.95rem;
  line-height: 1.6;
}
.logo--footer .logo__name {
  color: #fff;
}
.logo--footer .logo__suffix {
  color: var(--color-on-dark-soft);
}
/* The emblem is brand-blue; on the dark footer, sit it on a white badge. */
.logo--footer .logo__mark {
  background: #fff;
  padding: 5px 8px;
  border-radius: 10px;
}
.logo--footer .logo__mark img {
  height: 34px;
}
.social-link {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: #fff;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.social-link:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--teal-300);
}
.site-footer__col ul {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.site-footer__col a {
  color: var(--color-on-dark-soft);
  font-size: 0.95rem;
}
.site-footer__col a:hover {
  color: #fff;
}
.site-footer__contact address {
  font-style: normal;
}
.site-footer__contact address p {
  display: flex;
  gap: 0.4rem;
  margin-bottom: 0.6rem;
  font-size: 0.95rem;
}
.site-footer__contact a {
  color: var(--color-on-dark-soft);
}
.site-footer__contact a:hover {
  color: #fff;
}
.site-footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.site-footer__bottom-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.5rem;
}
.site-footer__copy {
  font-size: 0.875rem;
}
.site-footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.site-footer__legal a {
  color: var(--color-on-dark-soft);
  font-size: 0.875rem;
}
.site-footer__legal a:hover {
  color: #fff;
}

@media (max-width: 64em) {
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
  }
  .site-footer__brand {
    grid-column: 1 / -1;
  }
}
@media (max-width: 40em) {
  .site-footer__grid {
    grid-template-columns: 1fr;
  }
}