/*
 * BeerPier Global Shell — Phase 1B
 */

:root {
  --shell-gutter: clamp(1rem, 3vw, 2rem);
  --header-height: 5.5rem;
}

.container {
  width: min(calc(100% - (var(--shell-gutter) * 2)), var(--content));
  margin-inline: auto;
}


.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: .75rem;
  left: .75rem;
  padding: .7rem 1rem;
  border-radius: 999px;
  background: var(--amber-500);
  color: var(--harbor-950);
  font-weight: 850;
  transform: translateY(-160%);
}

.skip-link:focus { transform: translateY(0); }

.site-header {
  position: relative;
  z-index: 20;
  border-bottom: 1px solid rgb(18 59 73 / 10%);
  background: rgb(255 253 248 / 92%);
  backdrop-filter: blur(12px);
}

.site-header__inner {
  display: flex;
  min-height: var(--header-height);
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.site-brand {
  flex: 0 0 auto;
  border-radius: var(--radius-sm);
}

.site-brand img { width: clamp(11.5rem, 18vw, 15rem); }

.site-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(.2rem, 1.2vw, 1rem);
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  padding: .45rem .75rem;
  border-radius: 999px;
  color: var(--harbor-800);
  font-size: var(--step--1);
  font-weight: 800;
  text-decoration: none;
}

.site-nav a:hover {
  background: var(--coast-100);
  color: var(--harbor-950);
}

.site-nav .nav-accent {
  background: var(--harbor-900);
  color: var(--white);
}

.site-nav .nav-accent:hover {
  background: var(--harbor-800);
  color: var(--white);
}

.menu-toggle {
  display: none;
  min-width: 3rem;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  border: 1px solid rgb(18 59 73 / 18%);
  border-radius: 999px;
  background: var(--white);
  color: var(--harbor-900);
  font: 800 var(--step--1)/1 var(--font-sans);
  cursor: pointer;
}

.menu-toggle svg { width: 1.25rem; }

.menu-toggle[aria-expanded="true"] {
  background: var(--coast-100);
}

.site-main { min-height: 55vh; }

.section { padding-block: var(--space-7); }

.section--compact { padding-block: clamp(2.5rem, 6vw, 4.5rem); }

.site-footer {
  margin-top: auto;
  background: var(--harbor-950);
  color: var(--coast-100);
}

.site-footer__main {
  display: grid;
  gap: clamp(2rem, 7vw, 6rem);
  grid-template-columns: minmax(16rem, 1.25fr) repeat(2, minmax(9rem, .55fr));
  padding-block: clamp(3rem, 7vw, 5.5rem);
}

.site-footer__brand img { width: min(16rem, 70vw); }

.site-footer__promise {
  max-width: 34rem;
  margin: var(--space-4) 0 0;
  color: #c4dce1;
}

.site-footer h2 {
  color: var(--white);
  font: 850 var(--step--1)/1.3 var(--font-sans);
  letter-spacing: .08em;
  text-transform: uppercase;
}

.site-footer ul {
  margin: var(--space-3) 0 0;
  padding: 0;
  list-style: none;
}

.site-footer li + li { margin-top: .55rem; }

.site-footer a {
  color: var(--coast-100);
  text-decoration-color: rgb(155 210 220 / 42%);
}

.site-footer a:hover { color: var(--amber-500); }

.site-footer__legal {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  padding-block: var(--space-4);
  border-top: 1px solid rgb(223 241 243 / 14%);
  color: #a7c5cb;
  font-size: var(--step--1);
}

.site-footer__legal p { margin: 0; }

@media (max-width: 760px) {
  .menu-toggle { display: inline-flex; }

  .site-nav {
    position: absolute;
    top: calc(100% + .5rem);
    right: var(--shell-gutter);
    left: var(--shell-gutter);
    display: none;
    padding: .75rem;
    border: 1px solid rgb(18 59 73 / 12%);
    border-radius: var(--radius-md);
    background: var(--shell-50);
    box-shadow: var(--shadow-lift);
  }

  .site-nav[data-open="true"] { display: block; }

  .site-nav__list {
    align-items: stretch;
    flex-direction: column;
  }

  .site-nav a {
    width: 100%;
    min-height: 3rem;
    padding-inline: 1rem;
  }

  .site-footer__main { grid-template-columns: 1fr 1fr; }

  .site-footer__brand { grid-column: 1 / -1; }

  .site-footer__legal {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 420px) {
  .site-footer__main { grid-template-columns: 1fr; }
  .site-footer__brand { grid-column: auto; }
}

@media print {
  .skip-link, .menu-toggle, .site-nav, .site-footer nav { display: none !important; }
  .site-header { position: static; border: 0; }
  .site-footer { background: none; color: var(--ink); }
  .site-footer__main { grid-template-columns: 1fr; padding-block: 2rem; }
  .site-footer__promise, .site-footer__legal { color: var(--ink); }
}

/* Phase 1D mobile and assistive-technology refinements */
@media (max-width: 760px) {
  .site-header__inner {
    min-height: 4.75rem;
  }

  .site-nav a,
  .menu-toggle {
    min-height: 3rem;
  }
}

@media (max-width: 360px) {
  :root { --shell-gutter: .8rem; }

  .site-brand img { width: 10.25rem; }

  .site-nav {
    right: .5rem;
    left: .5rem;
  }
}

@media (forced-colors: active) {
  .site-header,
  .site-nav,
  .menu-toggle,
  .site-footer__legal {
    border-color: CanvasText;
  }

  .site-nav .nav-accent {
    border: 1px solid ButtonText;
  }
}