body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: var(--fs-base);
  font-weight: var(--fw-regular);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: var(--lh-normal);
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.section {
  padding-block: var(--section-pad-y);
}

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

.section__header {
  max-width: 36rem;
  margin-bottom: var(--space-7);
}

.section__label {
  display: block;
  font-family: var(--font-display);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-sky);
  margin-bottom: var(--space-3);
}

.section__title {
  font-family: var(--font-display);
  font-size: var(--fs-2xl);
  font-weight: var(--fw-semibold);
  line-height: var(--lh-tight);
  letter-spacing: -0.02em;
  color: var(--color-whale);
  margin-bottom: var(--space-4);
}

.section__title--compact {
  font-size: var(--fs-xl);
}

.section__lead {
  font-size: var(--fs-md);
  color: var(--color-text-muted);
  line-height: var(--lh-normal);
}

/* Header */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header-height);
  background: var(--color-white);
  overflow: hidden;
  border-bottom: none;
}

.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 0.45rem;
  background: var(--color-header);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  line-height: 1;
}

.site-logo__line {
  display: block;
  height: 3.1rem;
  width: auto;
  clip-path: inset(17% 0 2% 0);
  margin-top: -0.05rem;
  margin-bottom: 0.25rem;
}

.site-logo__subtitle {
  display: block;
  font-family: var(--font-body);
  font-size: 0.96rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-header);
  margin-top: -0.15rem;
}

.site-logo__atos {
  display: block;
  font-size: 1.3em;
  line-height: 0.95;
}

.site-logo__service {
  display: block;
  line-height: 1.1;
  margin-top: 0.2rem;
}

.site-nav {
  display: none;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.site-nav__link {
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--color-whale);
  letter-spacing: 0.02em;
  transition: color var(--transition);
}

.site-nav__link:hover,
.site-nav__link.is-active {
  color: var(--color-header);
}

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

.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 9px;
  width: 2rem;
  height: auto;
  padding-block: 0.15rem;
  z-index: 110;
  transform: scale(0.9);
  transform-origin: center;
}

.menu-toggle__bar {
  display: block;
  width: 100%;
  height: 3px;
  flex: 0 0 3px;
  background: var(--color-header);
  transition: transform var(--transition), opacity var(--transition);
}

.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(1) {
  transform: translateY(12px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(3) {
  transform: translateY(-12px) rotate(-45deg);
}

.mobile-nav {
  position: fixed;
  inset: 0 0 0 auto;
  z-index: 105;
  display: flex;
  flex-direction: column;
  width: max-content;
  height: 100%;
  background: var(--color-bg-alt);
  padding: calc(var(--header-height) + var(--space-5)) var(--space-6) var(--space-6);
  box-shadow: -8px 0 24px rgba(13, 59, 92, 0.08);
  transform: translateX(100%);
  visibility: hidden;
  pointer-events: none;
  transition: transform var(--transition-slow), visibility 0s linear 0.55s;
}

.mobile-nav.is-open {
  transform: translateX(0);
  visibility: visible;
  pointer-events: auto;
  transition-delay: 0s, 0s;
}

.mobile-nav__close {
  position: absolute;
  top: calc((var(--header-height) - 2rem) / 2);
  right: var(--container-pad);
  width: 2rem;
  height: 2rem;
  z-index: 1;
}

.mobile-nav__close-bar {
  position: absolute;
  left: 0;
  top: 50%;
  display: block;
  width: 100%;
  height: 3px;
  background: var(--color-header);
}

.mobile-nav__close-bar:first-child {
  transform: rotate(45deg);
}

.mobile-nav__close-bar:last-child {
  transform: rotate(-45deg);
}

.mobile-nav__list {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-5);
}

.mobile-nav__link {
  font-family: var(--font-display);
  font-size: calc(var(--fs-xl) * 0.65);
  font-weight: var(--fw-medium);
  color: var(--color-whale);
  white-space: nowrap;
  text-align: left;
}

.mobile-nav__link:hover,
.mobile-nav__link.is-active {
  color: var(--color-header);
}

/* Main */
.site-main {
  flex: 1 0 auto;
  min-height: 60vh;
}

/* Page hero (inner pages) */
.page-hero {
  position: relative;
  overflow: hidden;
  padding-top: calc(var(--header-height) + var(--space-6));
  padding-bottom: var(--space-6);
  min-height: calc(var(--header-height) + 9.5rem);
  background: var(--color-sky-mist);
}

.page-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.5;
}

.page-hero__bg--strong {
  opacity: 0.65;
}

.page-hero__bg--soft {
  opacity: 0.42;
}

.page-hero__bg--softer {
  opacity: 0.35;
}

.page-hero__bg--pos-left {
  background-position: left center;
}

.page-hero__bg--pos-top,
.page-hero__bg--pos-left.page-hero__bg--pos-top {
  background-position: left 80px;
}

.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(
      165deg,
      rgba(243, 249, 252, 0.5) 0%,
      rgba(255, 255, 255, 0.42) 48%,
      rgba(227, 242, 250, 0.58) 100%
    );
  pointer-events: none;
}

.page-hero .container {
  position: relative;
  z-index: 2;
}

.page-hero__title {
  font-family: var(--font-display);
  font-size: var(--fs-3xl);
  font-weight: var(--fw-semibold);
  letter-spacing: -0.03em;
  line-height: var(--lh-tight);
  margin-bottom: var(--space-4);
}

.page-hero__lead {
  max-width: 32rem;
  font-size: var(--fs-md);
  color: var(--color-text-muted);
}

/* Footer */
.site-footer {
  flex-shrink: 0;
  background: var(--color-header);
  color: var(--color-white);
  font-size: var(--fs-xs);
  text-align: center;
  padding-block: var(--space-4);
}

/* Grid helpers */
.grid-3 {
  display: grid;
  gap: var(--space-8);
}