/* ==========================================================================
   BERNIE & CREAM — 02. LAYOUT
   Container, header, navigation, mobile drawer, footer, section grids.

   Nav approach: ONE set of markup in templates/header.html serves both the
   desktop bar and the mobile drawer. CSS changes the presentation, not the
   HTML. Breakpoint is 960px (--nav-breakpoint below is documentation only —
   media queries cannot read CSS variables, so 960px is written literally).
   ========================================================================== */

/* --------------------------------------------------------------------------
   CONTAINER & SECTIONS
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.container--narrow { max-width: 820px; }

.section { padding-block: var(--space-8); }
.section--tight { padding-block: var(--space-6); }
.section--alt { background-color: var(--brand-white); }

.section-head {
  margin-bottom: var(--space-6);
  max-width: 60ch;
}
.section-head p { color: var(--mocha-70); margin-bottom: 0; }

/* --------------------------------------------------------------------------
   SITE HEADER
   -------------------------------------------------------------------------- */

/* Reserves height before the template is injected, so nothing jumps. */
#site-header { min-height: var(--header-h); }

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background-color: var(--brand-cream);
  border-bottom: 1px solid var(--brand-latte);
  transition: box-shadow var(--transition-standard);
}

/* js/nav.js adds this class once the page is scrolled */
.site-header.is-stuck { box-shadow: var(--shadow-card); }

.header-inner {
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

/* The mobile drawer is position:fixed, so it paints above any static sibling.
   Lifting these two onto their own layer keeps the logo and the close button
   visible and clickable while the drawer is open. z-index 1 stays below the
   desktop dropdown (z-index 100), so nothing else changes. */
.brand,
.header-actions {
  position: relative;
  z-index: 1;
}

/* --- Brand lockup ------------------------------------------------------- */
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
  margin-right: auto;
}

.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-pill);
}

.brand-name {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--brand-mocha);
  white-space: nowrap;
  letter-spacing: -0.01em;
}

/* --- Primary navigation (desktop) --------------------------------------- */
.primary-nav { display: flex; }

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item { position: relative; margin: 0; }

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-pill);
  font-size: var(--fs-sm);
  font-weight: 600;
  text-decoration: none;
  color: var(--brand-mocha);
  white-space: nowrap;
  transition: background-color var(--transition-standard), color var(--transition-standard);
}

.nav-link:hover { background-color: var(--mocha-08); color: var(--brand-mocha); }

/* js/nav.js sets aria-current="page" on the link matching the current URL */
.nav-link[aria-current="page"] {
  background-color: var(--brand-latte);
  color: var(--brand-mocha);
}

/* --- Dropdown ------------------------------------------------------------ */
.nav-chevron {
  width: 12px;
  height: 12px;
  flex-shrink: 0;
  transition: transform var(--transition-standard);
}

.nav-item.is-open > .nav-link .nav-chevron { transform: rotate(180deg); }

.dropdown {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 480px;
  padding: var(--space-5);
  background-color: var(--brand-white);
  border: 1px solid var(--brand-latte);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lift);
  z-index: var(--z-dropdown);

  /* Hidden but still focusable-safe: opacity + visibility, not display */
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity var(--transition-standard),
              transform var(--transition-standard),
              visibility var(--transition-standard);
}

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

.dropdown-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4) var(--space-6);
  list-style: none;
  margin: 0;
  padding: 0;
}

.dropdown-grid li { margin: 0; }

.dropdown-link {
  display: block;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  font-size: var(--fs-sm);
  font-weight: 500;
  text-decoration: none;
  transition: background-color var(--transition-standard);
}
.dropdown-link:hover { background-color: var(--brand-cream); }

.dropdown-footer {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--brand-latte);
}
.dropdown-footer a {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--brand-caramel);
}

/* --- Header actions (search, social, hamburger) -------------------------- */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  background: transparent;
  border: none;
  border-radius: var(--radius-pill);
  color: var(--brand-mocha);
  cursor: pointer;
  transition: background-color var(--transition-standard), color var(--transition-standard);
}
.icon-btn:hover { background-color: var(--mocha-08); color: var(--brand-caramel); }
.icon-btn svg { width: 19px; height: 19px; }

.header-social { display: flex; gap: var(--space-1); }

/* Hamburger is desktop-hidden, shown under 960px */
.nav-toggle { display: none; }

/* --- Header search panel ------------------------------------------------- */
.header-search {
  display: none;
  border-top: 1px solid var(--brand-latte);
  background-color: var(--brand-white);
  padding-block: var(--space-4);
}
.header-search.is-open { display: block; }

.header-search form {
  display: flex;
  gap: var(--space-2);
  max-width: 620px;
  margin-inline: auto;
}
.header-search input { flex: 1; }

/* --------------------------------------------------------------------------
   MOBILE NAVIGATION (under 960px)
   Same markup, re-presented as an off-canvas drawer with accordions.
   -------------------------------------------------------------------------- */
@media (max-width: 959px) {
  .nav-toggle { display: inline-flex; }

  .header-social { display: none; } /* social lives in the drawer + footer */

  .primary-nav {
    position: fixed;
    inset: 0 0 0 auto;
    width: min(88vw, 360px);
    /* No z-index needed: it inherits the header's stacking context. */
    display: block;
    padding: calc(var(--header-h) + var(--space-4)) var(--space-5) var(--space-7);
    background-color: var(--brand-cream);
    border-left: 1px solid var(--brand-latte);
    overflow-y: auto;
    overscroll-behavior: contain;

    transform: translateX(100%);
    visibility: hidden;
    transition: transform 0.3s ease, visibility 0.3s ease;
  }

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

  .nav-list { display: block; }

  .nav-item { border-bottom: 1px solid var(--brand-latte); }

  .nav-link {
    justify-content: space-between;
    width: 100%;
    padding: var(--space-4) var(--space-1);
    border-radius: 0;
    font-size: var(--fs-lg);
    font-family: var(--font-serif);
  }
  .nav-link:hover { background-color: transparent; color: var(--brand-caramel); }
  .nav-link[aria-current="page"] {
    background-color: transparent;
    color: var(--brand-caramel);
  }

  /* Dropdown becomes a collapsed accordion panel */
  .dropdown {
    position: static;
    min-width: 0;
    padding: 0 0 var(--space-3);
    border: none;
    border-radius: 0;
    box-shadow: none;
    background: transparent;
    transform: none;

    display: none;
    opacity: 1;
    visibility: visible;
    transition: none;
  }
  .nav-item.is-open > .dropdown { display: block; transform: none; }

  .dropdown-grid { grid-template-columns: 1fr; gap: 0; }
  .dropdown-link { padding: var(--space-2) var(--space-4); font-size: var(--fs-base); }

  /* Social icons shown inside the drawer instead */
  .drawer-social {
    display: flex;
    gap: var(--space-2);
    padding-top: var(--space-5);
  }

  .nav-backdrop {
    position: fixed;
    inset: 0;
    z-index: var(--z-backdrop);
    background-color: rgba(74, 51, 32, 0.45);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-standard), visibility var(--transition-standard);
  }
  .nav-backdrop.is-open { opacity: 1; visibility: visible; }
}

/* Drawer-only social is hidden on desktop (header-social takes over) */
@media (min-width: 960px) {
  .drawer-social { display: none; }
  .nav-backdrop  { display: none; }
}

/* Locks background scrolling while the drawer is open */
body.nav-open { overflow: hidden; }

/* --------------------------------------------------------------------------
   CONTENT GRIDS
   -------------------------------------------------------------------------- */
.grid {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr));
}

.grid--2 { grid-template-columns: repeat(auto-fill, minmax(min(100%, 420px), 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fill, minmax(min(100%, 200px), 1fr)); }

/* Page header block used on interior pages */
.page-head {
  padding-block: var(--space-7) var(--space-6);
  border-bottom: 1px solid var(--brand-latte);
  background-color: var(--brand-white);
}
.page-head h1 { margin-bottom: var(--space-3); }
.page-head p  { margin-bottom: 0; color: var(--mocha-70); max-width: 60ch; }

/* --------------------------------------------------------------------------
   SITE FOOTER
   -------------------------------------------------------------------------- */
#site-footer { min-height: 200px; }

.site-footer {
  margin-top: var(--space-8);
  background-color: var(--brand-mocha);
  color: var(--brand-latte);
}

.site-footer a { color: var(--brand-latte); text-decoration: none; }
.site-footer a:hover { color: var(--brand-caramel); text-decoration: underline; }

.footer-top {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: 1.6fr 1fr 1fr;
  padding-block: var(--space-7);
}

@media (max-width: 860px) {
  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 520px) {
  .footer-top { grid-template-columns: 1fr; }
}

.footer-brand .brand-name { color: var(--brand-cream); }
.footer-blurb {
  font-size: var(--fs-sm);
  color: var(--brand-latte);
  max-width: 44ch;
  margin-top: var(--space-3);
}

.footer-heading {
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--brand-caramel);
  margin-bottom: var(--space-3);
}

.footer-links { list-style: none; margin: 0; padding: 0; }
.footer-links li { margin-bottom: var(--space-2); }
.footer-links a { font-size: var(--fs-sm); }

.footer-social { display: flex; gap: var(--space-2); margin-top: var(--space-4); }
.footer-social .icon-btn { color: var(--brand-latte); }
.footer-social .icon-btn:hover {
  background-color: rgba(255, 255, 255, 0.10);
  color: var(--brand-caramel);
}

.footer-bottom {
  border-top: 1px solid rgba(232, 213, 196, 0.20);
  padding-block: var(--space-5);
  font-size: var(--fs-xs);
  color: rgba(232, 213, 196, 0.75);
}

.footer-legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  list-style: none;
  margin: 0 0 var(--space-3);
  padding: 0;
}
.footer-legal-links li { margin: 0; }
.footer-legal-links a { font-size: var(--fs-xs); }

.footer-disclosure {
  margin: var(--space-3) 0 0;
  max-width: 90ch;
  line-height: 1.6;
}