/* ==========================================================================
   Pearl Island Tours — Layout
   Container, section rhythm, grid helpers, header, footer.
   ========================================================================== */

/* ---------- Container ---------- */
.container {
  width: 100%;
  max-width: calc(var(--container-max) + (var(--container-gutter) * 2));
  margin-inline: auto;
  padding-inline: var(--container-gutter);
}

.container--narrow {
  max-width: calc(var(--container-narrow) + (var(--container-gutter) * 2));
}

.container--wide {
  max-width: calc(var(--container-max) + 200px + (var(--container-gutter) * 2));
}

/* ---------- Section rhythm ---------- */
.section {
  position: relative;
  padding-block: var(--section-space);
}

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

.section--flush-top {
  padding-block-start: 0;
}

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

.section--muted {
  background-color: var(--color-surface-muted);
}

.section--inverse {
  background-color: var(--color-surface-inverse);
  color: var(--color-text-inverse);
}

.section--inverse h2,
.section--inverse h3,
.section--inverse h4 {
  color: var(--color-text-inverse);
}

/* Hairline divider used between two white sections */
.section--ruled {
  border-top: 1px solid var(--color-border);
}

/* ---------- Section heading block ---------- */
.section-head {
  max-width: var(--measure-wide);
  margin-bottom: var(--space-3xl);
}

.section-head__title {
  margin-bottom: var(--space-md);
}

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

/* Split heading: title left, supporting copy + link right */
.section-head--split {
  display: grid;
  gap: var(--space-lg) var(--space-3xl);
  max-width: none;
  align-items: end;
}

@media (min-width: 62rem) {
  .section-head--split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }
  .section-head--split .section-head__title {
    margin-bottom: 0;
  }
}

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

@media (min-width: 40rem) {
  .grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 62rem) {
  .grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (min-width: 40rem) and (max-width: 61.999rem) {
  .grid--3,
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* Full-bleed escape hatch for breakout bands */
.full-bleed {
  width: 100vw;
  margin-inline: calc(50% - 50vw);
}

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
}

/* Utility strip above the main bar */
.header-utility {
  background-color: var(--palette-forest-900);
  color: var(--color-text-inverse-muted);
  font-size: var(--text-xs);
}

.header-utility__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  min-height: 38px;
  flex-wrap: wrap;
}

.header-utility__list {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.header-utility__item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
}

.header-utility__item .icon {
  color: var(--palette-gold-400);
}

.header-utility a {
  color: var(--color-text-inverse-muted);
  text-decoration: none;
}

.header-utility a:hover {
  color: var(--color-text-inverse);
}

/* The utility strip appears at the same width as the horizontal nav. Below
   that the drawer carries the phone and e-mail, so the strip would only
   crowd the bar. */
@media (max-width: 79.999rem) {
  .header-utility {
    display: none;
  }
}

/* Main bar */
.header-bar {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--duration-base) var(--ease-out);
}

.site-header.is-stuck .header-bar {
  box-shadow: var(--shadow-sm);
}

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

@media (max-width: 79.999rem) {
  .header-bar__inner {
    min-height: var(--header-height-compact);
  }
}

/* Logo placeholder — replace with the supplied logo file */
.logo-slot {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  flex: none;
}

.logo-slot__mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  flex: none;
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface-tint);
  color: var(--color-brand);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-bold);
  letter-spacing: var(--tracking-wide);
}

.logo-slot__text {
  display: block;
  line-height: 1.15;
}

.logo-slot__name {
  display: block;
  font-size: var(--text-md);
  font-weight: var(--font-weight-bold);
  letter-spacing: var(--tracking-snug);
  color: var(--palette-forest-800);
}

.logo-slot__tag {
  display: block;
  margin-top: 2px;
  font-size: 0.625rem;
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--color-text-subtle);
}

/* On the narrowest phones the wordmark alone has to carry the lockup. */
@media (max-width: 29.999rem) {
  .logo-slot__tag {
    display: none;
  }
}

.logo-slot--inverse .logo-slot__mark {
  border-color: var(--color-border-inverse);
  background-color: rgba(255, 255, 255, 0.06);
  color: var(--palette-gold-400);
}

.logo-slot--inverse .logo-slot__name {
  color: var(--color-text-inverse);
}

.logo-slot--inverse .logo-slot__tag {
  color: var(--color-text-inverse-muted);
}

/* Primary navigation */
.primary-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(var(--space-sm), 0.4vw + 0.4rem, var(--space-lg));
}

.primary-nav__link {
  position: relative;
  display: block;
  padding: var(--space-xs) 2px;
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-muted);
  text-decoration: none;
  white-space: nowrap;
}

.primary-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  background-color: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-fast) var(--ease-out);
}

.primary-nav__link:hover,
.primary-nav__link[aria-current="page"] {
  color: var(--palette-forest-800);
}

.primary-nav__link:hover::after,
.primary-nav__link[aria-current="page"]::after {
  transform: scaleX(1);
}

.primary-nav__link[aria-current="page"] {
  font-weight: var(--font-weight-semibold);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex: none;
}

/* Mobile menu toggle */
.nav-toggle {
  display: none;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--palette-forest-800);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
}

.nav-toggle__bars {
  position: relative;
  width: 18px;
  height: 12px;
  flex: none;
}

.nav-toggle__bars span {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background-color: currentColor;
  border-radius: var(--radius-pill);
  transition: transform var(--duration-fast) var(--ease-out),
    opacity var(--duration-fast) var(--ease-out);
}

.nav-toggle__bars span:nth-child(1) { top: 0; }
.nav-toggle__bars span:nth-child(2) { top: 5px; }
.nav-toggle__bars span:nth-child(3) { top: 10px; }

.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

/* The CTA stays in the bar on tablets; only the narrowest phones drop it,
   where it would squeeze the wordmark. It is still the first item in the
   open drawer. */
@media (max-width: 47.999rem) {
  .header-actions .btn {
    display: none;
  }
}

/* Eight items, one of them "Why Pearl Island Tours", need the full 1200px
   row. Anything narrower gets the drawer. */
@media (max-width: 79.999rem) {
  .nav-toggle {
    display: inline-flex;
  }

  .primary-nav {
    position: fixed;
    inset: var(--header-height-compact) 0 auto 0;
    max-height: calc(100vh - var(--header-height-compact));
    overflow-y: auto;
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    padding: var(--space-lg) var(--container-gutter) var(--space-xl);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition:
      opacity var(--duration-base) var(--ease-out),
      transform var(--duration-base) var(--ease-out),
      visibility var(--duration-base) var(--ease-out);
  }

  .primary-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .primary-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .primary-nav__list li + li {
    border-top: 1px solid var(--color-border);
  }

  .primary-nav__link {
    padding: var(--space-md) 0;
    font-size: var(--text-md);
  }

  .primary-nav__link::after {
    display: none;
  }

  .primary-nav__cta {
    margin-top: var(--space-lg);
    display: grid;
    gap: var(--space-sm);
  }
}

@media (min-width: 80rem) {
  .primary-nav__cta {
    display: none;
  }
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  background-color: var(--palette-forest-950);
  color: var(--color-text-inverse-muted);
  font-size: var(--text-sm);
}

.site-footer a {
  color: var(--color-text-inverse-muted);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--palette-gold-400);
}

.footer-main {
  display: grid;
  gap: var(--space-2xl);
  padding-block: var(--space-4xl) var(--space-3xl);
}

@media (min-width: 48rem) {
  .footer-main {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 62rem) {
  .footer-main {
    grid-template-columns: minmax(0, 1.5fr) repeat(3, minmax(0, 1fr));
    gap: var(--space-3xl);
  }
}

.footer-brand__text {
  margin-top: var(--space-lg);
  max-width: 34ch;
  line-height: var(--leading-normal);
}

.footer-heading {
  margin-bottom: var(--space-md);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--palette-gold-400);
}

.footer-list {
  display: grid;
  gap: var(--space-sm);
}

.footer-contact__item {
  display: flex;
  gap: var(--space-sm);
  line-height: var(--leading-normal);
}

.footer-contact__item .icon {
  flex: none;
  margin-top: 3px;
  color: var(--palette-gold-400);
}

.footer-social {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.footer-social__link {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--color-border-inverse);
  border-radius: var(--radius-sm);
  color: var(--color-text-inverse-muted);
  transition: background-color var(--duration-fast) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out),
    color var(--duration-fast) var(--ease-out);
}

.footer-social__link:hover {
  background-color: rgba(255, 255, 255, 0.08);
  border-color: var(--palette-gold-400);
  color: var(--palette-gold-400);
}

.footer-bottom {
  border-top: 1px solid var(--color-border-inverse);
  padding-block: var(--space-lg);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  font-size: var(--text-xs);
}

.footer-bottom__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
}