/* ==========================================================================
   VANTIX SYSTEMS — components.css
   Header, navigation, mobile menu, buttons, preloader, progress bar, footer.
   Shared by every page.
   ========================================================================== */

/* ---------- Logo ---------- */
.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-display);
  line-height: 1;
}

.logo__mark {
  width: 1.75rem;
  height: 1.75rem;
  flex: none;
}

.logo__mark-node {
  fill: var(--cyan);
}

.logo__word {
  font-size: 1.0625rem;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.logo__word span {
  font-weight: 500;
  letter-spacing: 0.16em;
  opacity: 0.7;
}

/* ---------- Header (soft bar, scrolls away with the page) ---------- */
.site-header {
  position: absolute;
  inset: 0 0 auto 0;
  z-index: 125; /* above the mobile menu (110) so the logo and close button stay visible */
  padding-top: 1rem;
  color: var(--ink);
  pointer-events: none;
  transition: transform 0.9s var(--ease), opacity 0.7s ease;
}

.site-header .container {
  width: min(92rem, 100% - var(--gutter) * 1.2);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  height: 4.5rem;
  padding: 0 0.85rem 0 1.5rem;
  pointer-events: auto;
  background: #e9eff9;
  border-radius: 16px;
}

/* Logo image */
.site-footer .logo__img {
  height: 3rem;
}
@media (max-width: 47.9375rem) {
  .site-header .logo__img {
    height: 2.35rem;
  }
}
.logo__img {
  display: block;
  width: auto;
  height: 3.1rem;
}
.logo__img--light {
  display: none;
}
.menu-open .site-header .logo__img--dark {
  display: none;
}
.menu-open .site-header .logo__img--light {
  display: block;
}

.site-header__cta {
  margin-left: auto;
}
.site-header__cta svg {
  width: 0.9rem;
  height: 0.9rem;
  margin-left: 0.55rem;
}

/* Back-to-top reveal: once scrolled, the bar slides in on scroll-up or touch/mouse use */
.site-header.is-fixed {
  position: fixed;
  transform: translateY(-130%);
}
.site-header.is-fixed.is-shown {
  transform: none;
}

/* Home: the bar waits for the greeting, then fades in */
html.intro-pending .site-header {
  opacity: 0;
  transform: translateY(-40%);
}

.site-nav {
  margin-left: clamp(0.5rem, 2.5vw, 2.5rem);
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(1.25rem, 2.6vw, 2.5rem);
}

.nav-link {
  position: relative;
  display: inline-block;
  padding-block: 0.5rem;
  font-size: 0.9375rem;
  font-weight: 500;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.2rem;
  height: 2px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.5s var(--ease);
}

.nav-link:hover::after,
.nav-link[aria-current="page"]::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* ---------- Buttons ---------- */
.btn {
  position: relative;
  isolation: isolate;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.95rem 1.6rem;
  overflow: hidden;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.2;
  white-space: nowrap;
  border: 1px solid transparent;
  border-radius: var(--radius);
  transition: color 0.45s var(--ease), border-color 0.45s var(--ease);
}

/* Hover fill sweeps up from the bottom edge */
.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  transform: translateY(101%);
  transition: transform 0.5s var(--ease);
}

.btn:hover::before,
.btn:focus-visible::before {
  transform: translateY(0);
}

.btn--sm {
  padding: 0.7rem 1.15rem;
  font-size: 0.875rem;
}

.btn--primary {
  color: var(--white);
  background: var(--blue-600);
}
.btn--primary::before {
  background: var(--blue-deep);
}

.btn--light {
  color: var(--ink);
  background: var(--white);
}
.btn--light::before {
  background: var(--cyan);
}

.btn--ghost-light {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.4);
}
.btn--ghost-light::before {
  background: var(--white);
}
.btn--ghost-light:hover,
.btn--ghost-light:focus-visible {
  color: var(--ink);
  border-color: var(--white);
}

/* ---------- Mobile menu ---------- */
.menu-toggle {
  display: none;
  position: relative;
  z-index: 130;
  width: 2.75rem;
  height: 2.75rem;
  margin-right: -0.5rem;
}

.menu-toggle__bar {
  position: absolute;
  left: 0.7rem;
  right: 0.7rem;
  height: 2px;
  background: currentColor;
  transition: transform 0.5s var(--ease);
}
.menu-toggle__bar:nth-of-type(2) {
  top: calc(50% - 4px);
}
.menu-toggle__bar:nth-of-type(3) {
  top: calc(50% + 3px);
}

.menu-open .menu-toggle__bar:nth-of-type(2) {
  transform: translateY(3.5px) rotate(45deg);
}
.menu-open .menu-toggle__bar:nth-of-type(3) {
  transform: translateY(-3.5px) rotate(-45deg);
}

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 110;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 2.5rem;
  padding: calc(var(--header-h) + 1rem) var(--gutter) 2.5rem;
  color: var(--white);
  background: var(--navy);
  visibility: hidden;
  clip-path: inset(0 0 100% 0);
  transition: clip-path 0.7s var(--ease), visibility 0s linear 0.7s;
}

.menu-open .mobile-menu {
  visibility: visible;
  clip-path: inset(0 0 0 0);
  transition: clip-path 0.7s var(--ease), visibility 0s;
}

.mobile-menu__list {
  display: grid;
  gap: 0.25rem;
}

.mobile-menu__link {
  display: block;
  padding: 0.5rem 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 9vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  opacity: 0.55;
  transition: opacity 0.3s ease;
}

.mobile-menu__link:hover,
.mobile-menu__link[aria-current="page"] {
  opacity: 1;
}

.mobile-menu .btn {
  align-self: flex-start;
}

/* Header stays readable over the open menu */
.menu-open .site-header {
  position: fixed;
  color: var(--white);
  transform: none;
}
.menu-open .site-header__inner {
  background: transparent;
}

@media (max-width: 62rem) {
  .site-nav,
  .site-header__cta {
    display: none;
  }
  .menu-toggle {
    display: block;
    margin-left: auto;
  }
}

/* ---------- Scroll progress ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 130;
  width: 100%;
  height: 2px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left;
  pointer-events: none;
}

/* ---------- Preloader ---------- */
.preloader {
  position: fixed;
  inset: 0;
  z-index: 250;
  display: none;
  color: var(--white);
  background: var(--ink);
}

html.is-loading .preloader {
  display: block;
}

.preloader__inner {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: var(--gutter);
}

.preloader__brand img {
  width: clamp(17rem, 46vw, 42rem);
  height: auto;
}

.preloader__count {
  position: absolute;
  right: var(--gutter);
  bottom: var(--gutter);
  font-family: var(--font-display);
  font-size: clamp(5rem, 12vw, 11rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.02em;
  color: rgba(255, 255, 255, 0.14);
  font-variant-numeric: tabular-nums;
}
@media (max-width: 47.9375rem) {
  .preloader__count {
    font-size: clamp(8rem, 42vw, 12rem);
    right: 1rem;
    bottom: 0.5rem;
  }
}

.preloader__bar {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 3px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left;
}

/* ---------- Page transition ---------- */
body {
  animation: page-in 0.6s var(--ease) both;
}

body.is-leaving {
  opacity: 0;
  transition: opacity 0.28s ease;
}

@keyframes page-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* ---------- Footer ---------- */
.site-footer {
  padding-top: clamp(4rem, 8vw, 6.5rem);
  color: rgba(255, 255, 255, 0.72);
  background: var(--ink);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(0, 1fr));
  gap: 2.5rem clamp(2rem, 5vw, 5rem);
  padding-bottom: clamp(3rem, 6vw, 5rem);
}

.site-footer .logo {
  color: var(--white);
}

.site-footer__about {
  max-width: 22rem;
  margin-top: 1.5rem;
  font-size: 0.9375rem;
}

.site-footer__heading {
  margin-bottom: 1.1rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0;
  color: var(--white);
}

.site-footer__list {
  display: grid;
  gap: 0.6rem;
  font-size: 0.9375rem;
}

.site-footer__list a {
  transition: color 0.3s ease;
}
.site-footer__list a:hover {
  color: var(--white);
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem 2rem;
  padding-block: 1.5rem 2rem;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.5);
  border-top: 1px solid var(--line-dark);
}

@media (max-width: 62rem) {
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
  }
  .site-footer__brand {
    grid-column: 1 / -1;
  }
}

/* ---------- Scroll lock while the mobile menu is open ---------- */
html.menu-open {
  overflow: hidden;
}

/* ---------- Inner page hero (shared by Solutions, About, Contact) ---------- */
.page-hero {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: min(70svh, 40rem);
  color: var(--white);
  background: var(--navy);
}

.page-hero__body {
  padding-top: calc(var(--header-h) + 4rem);
  padding-bottom: clamp(3rem, 7vw, 5rem);
}

.page-hero__title {
  font-size: var(--step-4);
}

.page-hero__lead {
  max-width: 34rem;
  margin-top: 1.5rem;
  font-size: var(--step-1);
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.74);
}