/*
 * Layout system — responsive grid, containers, page structure
 * Mobile-first, breakpoints at 640px, 768px, 1024px, 1280px
 */
:root {
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
}

/* === Container === */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.container--narrow {
  max-width: var(--max-width-narrow);
}

/* === Page structure === */
#app {
  position: relative;
  z-index: var(--z-base);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.page-content {
  flex: 1;
  padding-top: calc(var(--header-height) + var(--space-8));
  padding-bottom: var(--space-16);
  background: linear-gradient(180deg, rgba(10,61,46,0.03) 0%, transparent 120px);
}

/* === Grid system === */
.grid {
  display: grid;
  gap: var(--space-6);
}

/* Auto-fit grid for cards */
.grid--auto {
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

/* Match card grid = 3 cols desktop, 2 tablet, 1 mobile */
.grid--matches {
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .grid--matches {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid--matches {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* === Flex utilities === */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* === Two-column layout === */
.layout-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .layout-split {
    grid-template-columns: 1fr 1fr;
  }
}

/* === Card wrapper === */
.card-wrapper {
  position: relative;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card-wrapper:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-hover);
}

/* Art deco corner accents — keep gold for brand */
.card-wrapper::before,
.card-wrapper::after {
  content: '';
  position: absolute;
  width: 24px;
  height: 24px;
  pointer-events: none;
  z-index: 2;
  opacity: 0.25;
  transition: opacity var(--transition-base);
}
.card-wrapper:hover::before,
.card-wrapper:hover::after {
  opacity: 0.6;
}
.card-wrapper::before {
  top: var(--space-3);
  left: var(--space-3);
  border-top: 2px solid var(--color-gold);
  border-left: 2px solid var(--color-gold);
}
.card-wrapper::after {
  bottom: var(--space-3);
  right: var(--space-3);
  border-bottom: 2px solid var(--color-gold);
  border-right: 2px solid var(--color-gold);
}

/* === Page section === */
.page-section {
  padding: var(--space-12) 0;
}

.page-section + .page-section {
  border-top: 1px solid var(--color-border-light);
}

/* === Filter bar — light theme === */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-6);
  box-shadow: var(--shadow-card);
}
.filter-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
  white-space: nowrap;
}
.filter-group-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}
.filter-chip {
  padding: var(--space-1) var(--space-3);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-full);
  background: var(--color-bg-card);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}
.filter-chip:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}
.filter-chip.active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
}
.filter-search {
  flex: 1;
  min-width: 180px;
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-full);
  background: var(--color-bg-page);
  font-size: var(--text-sm);
  color: var(--color-text-primary);
  outline: none;
  transition: border-color var(--transition-fast);
  position: relative;
  z-index: 2;
  pointer-events: auto;
}
.filter-search:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(10, 95, 56, 0.1);
}
.filter-search::placeholder {
  color: var(--color-text-tertiary);
}
.filter-clear {
  padding: var(--space-1) var(--space-3);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-full);
  background: var(--color-bg-card);
  font-size: var(--text-xs);
  color: var(--color-risk);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.filter-clear:hover {
  background: var(--color-risk);
  color: var(--color-white);
  border-color: var(--color-risk);
}

/* === Sticky header offset === */
.sticky-top {
  position: sticky;
  top: calc(var(--header-height) + var(--space-4));
  z-index: var(--z-sticky);
}

/* === Scrollable horizontal strip === */
.scroll-strip {
  display: flex;
  gap: var(--space-3);
  overflow-x: auto;
  padding: var(--space-2) 0 var(--space-4);
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}
.scroll-strip > * {
  scroll-snap-align: start;
  flex-shrink: 0;
}
.scroll-strip::-webkit-scrollbar {
  height: 4px;
}

/* === Responsive visibility === */
.hide-mobile { display: none; }
.hide-desktop { display: block; }

@media (min-width: 768px) {
  .hide-mobile { display: block; }
  .hide-desktop { display: none; }
  .container { padding: 0 var(--space-8); }
}

/* Filter bar — ensure search input is interactive */
.filter-bar {
  position: relative;
  z-index: var(--z-base);
}
.filter-search {
  position: relative;
  z-index: 2;
  pointer-events: auto;
}