/* ── Skip to content (accessibility) ── */
.skip-link {
  position: absolute;
  left: var(--sp-2);
  top: -100px;
  z-index: calc(var(--z-cart) + 1);
  padding: var(--sp-2) var(--sp-4);
  background: var(--color-navy);
  color: var(--color-white);
  border-radius: var(--radius-md);
  font-weight: 700;
  text-decoration: none;
  transition: top var(--t-fast);
}
.skip-link:focus {
  top: var(--sp-2);
  outline: 2px solid var(--color-coral);
  outline-offset: 2px;
}

/* ── Shared section padding ── */
.section {
  padding: var(--sp-20) var(--container-pad);
}

.section__inner {
  max-width: var(--container-max);
  margin: 0 auto;
}

.section__header {
  text-align: center;
  margin-bottom: var(--sp-10);
}

.section__title {
  font-size: var(--fs-3xl);
  color: inherit;
  margin-bottom: var(--sp-3);
}

.section__subtitle {
  font-size: var(--fs-lg);
  color: inherit;
  opacity: 0.75;
  max-width: 640px;
  margin: 0 auto;
}

/* ── Hero ── */
#hero {
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--sp-24) var(--container-pad);
  background:
    linear-gradient(to bottom, rgba(13,31,60,0.70) 0%, rgba(13,31,60,0.45) 100%),
    url('../images/hero-bg.jpg') center / cover no-repeat;
  background-color: var(--color-navy);
  color: var(--color-white);
  position: relative;
}

.hero__content {
  max-width: 760px;
}

.hero__tagline {
  font-size: var(--fs-hero);
  color: var(--color-white);
  text-shadow: 0 2px 12px rgba(0,0,0,0.45);
  margin-bottom: var(--sp-5);
}

.hero__sub {
  font-size: clamp(var(--fs-base), 2.5vw, var(--fs-xl));
  color: rgba(255,255,255,0.88);
  margin-bottom: var(--sp-8);
}

/* ── Grids ── */
.fish-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--sp-6);
}

.species-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--sp-6);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--sp-3);
}

.menu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: var(--sp-4);
}

/* ── Contact two-column ── */
.contact-layout {
  display: grid;
  gap: var(--sp-12);
  align-items: start;
}

/* ── About two-column ── */
.about-layout {
  display: grid;
  gap: var(--sp-10);
  align-items: start;
}

/* ── Section color themes ── */
.section--light   { background: var(--color-cream); color: var(--color-text); }
.section--white   { background: var(--color-white); color: var(--color-text); }
.section--dark    { background: var(--color-navy);  color: var(--color-white); }
.section--teal    { background: var(--color-teal);  color: var(--color-white); }

/* ── Scroll margin offset for sticky nav ── */
section[id] { scroll-margin-top: var(--nav-height); }