/* =============================================================================
   FOOX BRICKS — Layout Stylesheet
   Load order: fonts.css → pico.min.css → pico-custom.css → layout.css → components.css

   This file contains structural layout sections that are present on every page:
   top bar, site header/nav, hero base rule, stats bar, catalog sidebar layout,
   and the site footer. These sections use only element selectors and structural
   class names — no feature-specific component styles.

   Brand tokens are defined in pico-custom.css.
   Feature-specific component classes live in components.css.
   ============================================================================= */

/* =============================================================================
   TOP BAR
   Thin promotional bar above the site header.
   ============================================================================= */
.top-bar {
  background: var(--color-black-soft);
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-6);
  padding: var(--space-2) var(--space-8);
  flex-wrap: wrap;
}

.top-bar span {
  font-family: var(--pico-font-family);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-gray-400);
}

.top-bar-sep {
  width: 3px;
  height: 3px;
  background: var(--color-gray-600);
  flex-shrink: 0;
  display: block;
}

/* =============================================================================
   HEADER / NAV
   Sticky site header with logo, nav links, and header actions (account, cart).
   ============================================================================= */
body > header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-black);
  border-bottom: 1px solid var(--color-black-soft);
}

body > header nav {
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 0;
  padding-block: 0;
}

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

body > header nav > ul > li {
  padding: 0;
  display: flex;
  align-items: center;
}

body > header nav > ul:first-child {
  flex-shrink: 0;
  margin-right: var(--space-10);
}

body > header nav > ul:nth-child(2) {
  flex: 1;
}

body > header nav > ul:last-child {
  flex-shrink: 0;
  margin-left: auto;
  gap: var(--space-1);
}

/* Make a little extra space between the cart icon and the others */
body > header nav > ul:last-child > li:last-child {
  margin-left: var(--space-1);
}

/* Logo */
.logo-link {
  --logo-size: 32px;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
}

.logo-link svg,
.footer-logo-row svg {
  width: var(--logo-size, 32px);
  height: var(--logo-size, 32px);
  flex-shrink: 0;
}

.wordmark {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.wordmark-main {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: calc(var(--logo-size, 32px) * 0.875);
  color: var(--color-white);
  letter-spacing: -0.01em;
  line-height: 1;
}

.wordmark-sub {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-2xs);
  color: var(--color-yellow);
  letter-spacing: 0.3em;
  line-height: 1;
  margin-top: var(--space-1);
}

/* Nav links */
.nav-links > li > a {
  font-family: var(--pico-font-family);
  font-weight: 500;
  font-size: var(--text-base);
  color: var(--color-gray-300);
  text-decoration: none;
  padding: var(--space-2) var(--space-4);
  display: block;
  transition: color var(--transition-fast);
  letter-spacing: 0.02em;
}

.nav-links > li > a.active {
  color: var(--color-yellow);
}

.nav-links > li > a:hover {
  background: rgba(255, 255, 255, 0.08);
}

/* Header icon buttons */
.icon-btn {
  width: var(--icon-btn-size);
  height: var(--icon-btn-size);
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  text-decoration: none;
  font-size: var(--text-base);
  transition: color var(--transition-fast), background var(--transition-fast);
  margin: 0;
}

.icon-btn:hover {
  background: rgba(255, 255, 255, 0.08);
}

/* Cart button — extends icon-btn with yellow background */
#cart-count-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.cart-btn {
  background: var(--color-yellow);
  color: var(--color-black);
}

.cart-btn:hover {
  background: var(--color-yellow-dark);
  color: var(--color-black);
}

/* =============================================================================
   HERO — BASE RULE
   Generic hero section dimensions. The homepage overrides these values with
   more specific rules in components.css (.hero + .hero-inner override block).
   ============================================================================= */
.hero {
  padding-block: var(--space-24);
  position: relative;
  overflow: hidden;
  min-height: calc(30 * var(--pico-spacing));
  display: flex;
  align-items: center;
}

.hero-inner {
  position: relative;
  z-index: 1;
}

#stud-animation {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 50%;
  opacity: 0.4;
  pointer-events: none;
}

/* =============================================================================
   STATS BAR
   Horizontal row of key metrics (used outside the hero on interior pages).
   ============================================================================= */
.stats-bar {
  background: var(--color-gray-50);
  border-top: 1px solid var(--color-gray-100);
  border-bottom: 1px solid var(--color-gray-100);
  padding-block: var(--space-6);
}

.stats-bar-inner {
  display: flex;
  justify-content: space-around;
  align-items: center;
  gap: var(--space-8);
  flex-wrap: wrap;
}

.stat-item {
  text-align: center;
}

.stat-value {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--text-2xl);
  color: var(--color-black);
  line-height: 1;
}

.stat-label {
  font-size: var(--text-xs);
  color: var(--color-gray-400);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-top: var(--space-1);
}

/* =============================================================================
   CATALOG LAYOUT
   Two-column grid: sticky filter sidebar + scrolling product area.
   ============================================================================= */
.catalog-layout {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  gap: 0;
  align-items: start;
  background: var(--color-white);
  border: 1px solid var(--color-gray-100);
  position: relative;
  overflow: hidden;
}

.catalog-watermark {
  position: absolute;
  left: -140px;
  bottom: -80px;
  width: 360px;
  height: 360px;
  opacity: 0.05;
  pointer-events: none;
  user-select: none;
}

.filter-panel {
  position: sticky;
  top: calc(var(--header-height) + var(--space-4));
  border-right: 1px solid var(--color-gray-100);
  padding: var(--space-4) var(--space-5);
}

.filter-panel details {
  border-bottom: 1px solid var(--color-gray-100);
  margin: 0;
  padding: 0;
  background: transparent;
  box-shadow: none;
}

.filter-panel details > summary {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: var(--space-3) 0;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--pico-color);
}

.filter-panel details > summary::after {
  content: '+';
  color: var(--color-gray-400);
  font-size: var(--text-sm);
  font-family: var(--pico-font-family);
  font-weight: 400;
  line-height: 1;
}

.filter-panel details[open] > summary::after {
  content: '−';
}

.filter-panel details > summary::-webkit-details-marker {
  display: none;
}

/* =============================================================================
   FOOTER
   Dark-themed site footer: brand bar, 4-column link grid, bottom bar.
   ============================================================================= */
footer {
  background: var(--color-black);
}

.footer-brand-bar {
  background: var(--color-yellow);
  padding: var(--space-2) var(--space-8);
}

.footer-brand-bar-inner {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  justify-content: center;
  flex-wrap: wrap;
}

.footer-brand-bar span {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--text-sm);
  letter-spacing: 0.12em;
  color: var(--color-black);
  text-transform: uppercase;
}

.footer-brand-sep {
  width: var(--space-1);
  height: var(--space-1);
  background: var(--color-black);
  display: inline-block;
  flex-shrink: 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-12);
  padding-block: var(--space-12) var(--space-8);
}

.footer-brand-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-logo-row {
  --logo-size: 36px;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.footer-tagline {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  line-height: 1.6;
  margin: 0;
}

.footer-newsletter-label {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-gray-600);
  text-transform: uppercase;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-col-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--text-sm);
  color: var(--color-white);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-1);
  border-bottom: 1px solid var(--color-black-soft);
  padding-bottom: var(--space-2);
}

.footer-col a {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-col a:hover {
  color: var(--color-yellow);
}

.footer-bottom-bar {
  border-top: 1px solid var(--color-black-soft);
}

.footer-bottom-inner {
  padding-block: var(--space-4);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.footer-bottom-inner span {
  font-size: var(--text-xs);
  color: var(--color-gray-600);
}

/* =============================================================================
   SMALL SCREENS
   Header: the nav links move to a second row that scrolls sideways on its own,
   so the page itself never does. Top bar: only the first message. Footer: the
   link columns go under the brand column, three across, then two on phones.
   ============================================================================= */
@media (max-width: 767px) {
  .top-bar {
    padding-inline: var(--space-4);
  }

  .top-bar > :not(:first-child) {
    display: none;
  }

  body > header nav {
    height: auto;
    flex-wrap: wrap;
  }

  body > header nav > ul:first-child {
    height: var(--header-height);
    margin-right: var(--space-4);
  }

  body > header nav > ul:nth-child(2) {
    order: 3;
    flex-basis: 100%;
    overflow-x: auto;
    scrollbar-width: none;
    border-top: 1px solid var(--color-black-soft);
  }

  .nav-links > li > a {
    padding-inline: var(--space-3);
    white-space: nowrap;
  }
}

/* Tablets too: four footer columns don't fit before the desktop width. */
@media (max-width: 991px) {
  .footer-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-8) var(--space-6);
    padding-block: var(--space-8) var(--space-6);
  }

  .footer-brand-col {
    grid-column: 1 / -1;
  }
}

@media (max-width: 767px) {
  .footer-brand-bar {
    padding-inline: var(--space-4);
  }

  .footer-brand-bar-inner {
    flex-direction: column;
    gap: var(--space-1);
  }

  .footer-brand-sep {
    display: none;
  }

  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}