/* =============================================================================
   LAYOUT — page skeleton: containers, sections, header, navigation, footer
============================================================================= */

/* --- Containers and sections ----------------------------------------------- */
.container {
  width: min(100% - 2 * var(--space-md), var(--container-max));
  margin-inline: auto;
}

.container--narrow {
  width: min(100% - 2 * var(--space-md), var(--container-narrow));
}

.section {
  padding-block: var(--space-2xl);
  scroll-margin-top: var(--header-height);
}

.section--tight {
  padding-block: var(--space-xl);
}

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

.section--contrast {
  background-color: var(--color-bg-contrast);
  color: var(--color-text-invert);
}

.section--contrast h2,
.section--contrast h3 {
  color: var(--color-text-invert);
}

.section__header {
  max-width: 44rem;
  margin-bottom: var(--space-lg);
}

.section__header--center {
  margin-inline: auto;
  text-align: center;
}

/* Small uppercase label above a section title */
.section__eyebrow {
  display: block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-accent-text);
  margin-bottom: var(--space-2xs);
}

.section--contrast .section__eyebrow {
  color: var(--brand-blush);
}

.section__lead {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}

.section--contrast .section__lead {
  color: #dfe9ea;
}

/* --- Reusable grids -------------------------------------------------------- */
.grid {
  display: grid;
  gap: var(--space-md);
}

.grid--2 {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 20rem), 1fr));
}

.grid--3 {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr));
}

.grid--split {
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  align-items: center;
}

/* Aligns the columns at the top: used when the two blocks have different heights */
.grid--top {
  align-items: start;
}

@media (min-width: 56rem) {
  .grid--split {
    grid-template-columns: 0.9fr 1.1fr;
  }
}

/* --- Site header ----------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  min-height: var(--header-height);
}

.site-logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  text-decoration: none;
  flex-shrink: 0;
}

.site-logo img {
  height: var(--logo-height);
  width: auto;
}

/* --- Primary navigation ---------------------------------------------------- */
.nav {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav__link {
  color: var(--color-heading);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.01em;
  padding-block: var(--space-3xs);
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}

.nav__link:hover,
.nav__link[aria-current="true"] {
  color: var(--color-accent-text);
  border-bottom-color: var(--color-accent);
}

/* Burger button: only visible on small screens */
.nav-toggle {
  display: none;
  align-items: center;
  gap: var(--space-2xs);
  background: none;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-pill);
  padding: var(--space-3xs) var(--space-xs);
  color: var(--color-heading);
  font-size: var(--text-sm);
  cursor: pointer;
}

.nav-toggle__bars,
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  display: block;
  width: 18px;
  height: 2px;
  background-color: currentColor;
  border-radius: 2px;
  content: "";
}

.nav-toggle__bars {
  position: relative;
}

.nav-toggle__bars::before {
  position: absolute;
  top: -6px;
}

.nav-toggle__bars::after {
  position: absolute;
  top: 6px;
}

@media (max-width: 60rem) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav {
    position: fixed;
    inset: var(--header-height) 0 auto 0;
    z-index: var(--z-menu);
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-sm);
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    padding: var(--space-md);
    max-height: calc(100svh - var(--header-height));
    overflow-y: auto;
  }

  /* Closed by default on mobile; toggled by navigation.js.
     Without JavaScript the :target fallback in components.css keeps the
     menu reachable, and the anchor list is duplicated in the footer. */
  .nav[data-collapsed="true"] {
    display: none;
  }

  .nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-xs);
  }

  .nav__link {
    display: block;
    padding: var(--space-2xs) 0;
    font-size: var(--text-base);
    border-bottom: 1px solid var(--color-border);
  }

  .nav .btn {
    justify-content: center;
  }
}

/* --- Hero ------------------------------------------------------------------ */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(60% 70% at 85% 10%, var(--brand-blush) 0%, transparent 60%),
    linear-gradient(180deg, var(--brand-blush-soft) 0%, var(--brand-white) 100%);
  padding-block: clamp(3rem, 1.5rem + 8vw, 7rem);
}

.hero__inner {
  display: grid;
  gap: var(--space-xl);
  align-items: center;
}

@media (min-width: 58rem) {
  .hero__inner {
    grid-template-columns: 1.05fr 0.95fr;
  }
}

.hero__title {
  margin-top: var(--space-xs);
}

.hero__lead {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  margin-top: var(--space-md);
  max-width: 34rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-top: var(--space-lg);
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-md);
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
  list-style: none;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.hero__meta li::before {
  content: "—";
  color: var(--color-accent);
  margin-right: var(--space-3xs);
}

/* Decorative portrait / logo panel */
.hero__figure {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-lg);
  background: linear-gradient(140deg, var(--brand-white), var(--brand-blush-soft));
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  padding: var(--space-lg);
}

.hero__figure img {
  width: min(100%, 22rem);
  border-radius: var(--radius-md);
}

/* --- Footer ---------------------------------------------------------------- */
.site-footer {
  background-color: var(--color-footer-bg);
  color: #e8eff0;
  padding-top: var(--space-2xl);
  font-size: var(--text-sm);
}

.site-footer a {
  color: var(--brand-blush);
}

.site-footer a:hover {
  color: var(--brand-white);
}

.site-footer h2,
.site-footer h3 {
  color: var(--color-text-invert);
  font-size: var(--text-lg);
  margin-bottom: var(--space-xs);
}

.site-footer__grid {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr));
  padding-bottom: var(--space-xl);
}

.site-footer__logo img {
  height: var(--logo-height-footer);
  width: auto;
}

.site-footer__list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: var(--space-2xs);
}

.site-footer__legal {
  color: #d3e0e1;
  margin-top: var(--space-sm);
  line-height: var(--leading-snug);
}

.site-footer__bottom {
  border-top: 1px solid rgba(243, 200, 172, 0.28);
  padding-block: var(--space-md);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2xs) var(--space-md);
  align-items: center;
  justify-content: space-between;
  color: #cfdcdd;
  font-size: var(--text-xs);
}