/* ==========================================================================
   Layout — preview.bigintbd.com
   Nav, hero, filter bar, catalog grid, dark bands, footer
   ========================================================================== */

.page-container {
  max-width: 1180px;
  margin-inline: auto;
  padding-inline: var(--space-5);
}

/* ---- Navbar ---- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: 76px;
  display: flex;
  align-items: center;
  background: var(--surface-glass-bg);
  backdrop-filter: blur(var(--surface-blur)) saturate(var(--surface-saturate));
  -webkit-backdrop-filter: blur(var(--surface-blur)) saturate(var(--surface-saturate));
  border-bottom: 1px solid var(--surface-glass-border);
}

.site-nav__inner {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.site-nav__brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 700;
  font-family: var(--font-display);
  font-size: var(--fs-body-lg);
  color: var(--color-text-primary);
}

.site-nav__brand:hover { color: var(--color-text-primary); }

.site-nav__mark {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
}

.site-nav__badge {
  font-size: var(--fs-caption);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-pill);
  background: var(--pastel-mint-bg);
  color: var(--pastel-mint-fg);
}

.site-nav__links {
  display: none;
  align-items: center;
  gap: var(--space-6);
}

@media (min-width: 900px) {
  .site-nav__links { display: flex; }
}

.site-nav__links a {
  color: var(--color-text-secondary);
  font-weight: 500;
  font-size: var(--fs-small);
}

.site-nav__links a:hover { color: var(--color-text-primary); }

.site-nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* ---- Sections ---- */
.section { padding-block: var(--space-12); }
.section--tight { padding-block: var(--space-8); }
.section--subtle { background: var(--color-bg-subtle); }

.section-header {
  max-width: 640px;
  margin-inline: auto;
  text-align: center;
  margin-bottom: var(--space-8);
}

.section-header p { margin-top: var(--space-3); }

/* ---- Dark band ---- */
.dark-band {
  background: var(--color-ink);
  color: #f5f6f8;
  border-radius: var(--radius-lg);
  margin-inline: var(--space-5);
  padding-block: var(--space-10);
}

.dark-band p { color: rgba(245, 246, 248, 0.68); }
.dark-band .section-header h2 { color: #ffffff; }

/* ---- Hero ---- */
.hero {
  padding-block: var(--space-10) var(--space-8);
  text-align: center;
}

.hero__content {
  max-width: 760px;
  margin-inline: auto;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-pill);
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  font-size: var(--fs-small);
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
}

.hero h1 {
  font-size: var(--fs-display);
  line-height: var(--leading-display);
  letter-spacing: var(--tracking-display);
  margin-bottom: var(--space-5);
}

.hero h1 .accent-word { color: var(--color-brand-500); }

.hero__subtitle {
  font-size: var(--fs-body-lg);
  max-width: 600px;
  margin-inline: auto;
  margin-bottom: var(--space-6);
}

.hero__store-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 600;
  font-size: var(--fs-small);
}

/* ---- Mini stats ---- */
.mini-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
  max-width: 720px;
  margin-inline: auto;
}

@media (min-width: 640px) {
  .mini-stats { grid-template-columns: repeat(4, 1fr); }
}

.mini-stats__item { text-align: center; }

.mini-stats__value {
  display: block;
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
}

.mini-stats__label {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--fs-caption);
  color: var(--color-text-tertiary);
}

.dark-band .mini-stats__value { color: #ffffff; }
.dark-band .mini-stats__label { color: rgba(245, 246, 248, 0.65); }

.offering-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: var(--space-5);
}

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

@media (min-width: 992px) {
  .offering-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ---- Category tiles (visual browse-by-category nav) ---- */
.category-tiles {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

@media (min-width: 640px) {
  .category-tiles { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 992px) {
  .category-tiles { grid-template-columns: repeat(6, 1fr); }
}

/* ---- Filter bar ---- */
.filter-bar {
  position: sticky;
  top: 76px;
  z-index: 900;
  background: var(--surface-glass-bg);
  backdrop-filter: blur(var(--surface-blur)) saturate(var(--surface-saturate));
  -webkit-backdrop-filter: blur(var(--surface-blur)) saturate(var(--surface-saturate));
  border-bottom: 1px solid var(--surface-glass-border);
  padding-block: var(--space-4);
}

.filter-bar__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.filter-bar__top-row {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

@media (min-width: 768px) {
  .filter-bar__top-row {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.filter-bar__chip-rows {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.filter-chip-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.filter-chip-row__label {
  font-size: var(--fs-caption);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-text-tertiary);
  margin-right: var(--space-1);
}

.sort-select {
  padding: 0.6rem 2.2rem 0.6rem 1.1rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
  color: var(--color-text-primary);
  font-size: var(--fs-small);
  font-weight: 600;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none'%3E%3Cpath d='M4 6l4 4 4-4' stroke='%238b93a1' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.9rem center;
}

.sort-select:focus { outline: none; border-color: var(--color-brand-500); }

.filter-search {
  position: relative;
  max-width: 360px;
  width: 100%;
}

.filter-search__icon {
  position: absolute;
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-tertiary);
  pointer-events: none;
}

.filter-search__input {
  width: 100%;
  padding: 0.65rem 1rem 0.65rem 2.6rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
  color: var(--color-text-primary);
  font-size: var(--fs-small);
}

.filter-search__input::placeholder { color: var(--color-text-tertiary); }
.filter-search__input:focus { outline: none; border-color: var(--color-brand-500); }

.filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.filter-chip {
  padding: 0.5rem 1rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
  color: var(--color-text-secondary);
  font-size: var(--fs-small);
  font-weight: 600;
  cursor: pointer;
  transition: background-color var(--duration-fast) var(--ease-standard),
    color var(--duration-fast) var(--ease-standard),
    border-color var(--duration-fast) var(--ease-standard);
}

.filter-chip:hover {
  border-color: var(--color-border-strong);
}

.filter-chip[aria-pressed="true"] {
  background: var(--color-brand-500);
  border-color: var(--color-brand-500);
  color: #ffffff;
}

/* ---- Catalog grid ---- */
.catalog-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-5);
  font-size: var(--fs-small);
  color: var(--color-text-tertiary);
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: var(--space-5);
}

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

@media (min-width: 1100px) {
  .catalog-grid { grid-template-columns: repeat(3, 1fr); }
}

.catalog-empty {
  display: none;
  text-align: center;
  padding-block: var(--space-12);
  color: var(--color-text-secondary);
}

.catalog-empty.is-visible { display: block; }

.catalog-empty__icon { font-size: 2rem; }

.template-card.is-hidden { display: none; }

/* ---- Step grid (how it connects) ---- */
.step-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: var(--space-5);
  counter-reset: step-counter;
}

@media (min-width: 768px) {
  .step-grid { grid-template-columns: repeat(3, 1fr); }
}

.step-card {
  counter-increment: step-counter;
  padding: var(--space-6) var(--space-5) var(--space-5);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.step-card::before {
  content: counter(step-counter, decimal-leading-zero);
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--fs-small);
  color: var(--color-brand-600);
  background: var(--color-brand-50);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  margin-bottom: var(--space-4);
}

[data-theme="dark"] .step-card::before {
  background: var(--pastel-mint-bg);
  color: var(--pastel-mint-fg);
}

.trait-card {
  padding: var(--space-6) var(--space-5) var(--space-5);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.trait-card h3 {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}

/* ---- Footer ---- */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-8);
  background: var(--color-bg);
}

.site-footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  text-align: center;
}

@media (min-width: 768px) {
  .site-footer__inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer-social {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}