/* Shared cards and collections */

.card-grid,
.guide-grid,
.category-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr));
}

.calculator-card,
.guide-card,
.category-card,
.empty-state {
  padding: var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}

.calculator-card {
  position: relative;
  transition: border-color 120ms ease, box-shadow 120ms ease, transform 120ms ease;
}

.calculator-card:hover {
  border-color: var(--color-brand);
  box-shadow: var(--shadow-card-lg);
  transform: translateY(-2px);
}

.calculator-card__category,
.guide-card__category,
.category-card__count {
  color: var(--color-muted);
  font-family: "Space Mono", monospace;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

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

.calculator-card__category::before {
  flex: 0 0 0.75rem;
  width: 0.75rem;
  height: 0.75rem;
  background: var(--color-accent);
  content: "";
}

.calculator-card h3,
.guide-card h3,
.category-card h3 {
  margin-block: var(--space-2);
}

.calculator-card h3 {
  line-height: 1.2;
  letter-spacing: -0.025em;
}

.calculator-card h3 a {
  color: var(--color-ink);
  text-decoration: none;
}

.calculator-card h3 a:hover {
  color: var(--color-brand);
}

.calculator-card > p:last-child {
  margin-bottom: 0;
  color: var(--color-muted);
}

.section-heading__link {
  display: inline-flex;
  gap: var(--space-2);
  align-items: center;
  color: var(--color-brand);
  font-family: "Space Mono", monospace;
  font-size: clamp(0.9rem, 1.2vw, 1.25rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
}

.section-heading__link:hover {
  color: var(--color-brand-dark);
}

.calculator-search.home-search {
  max-width: 55rem;
  margin-top: clamp(2.5rem, 4vw, 3.5rem);
}

.home-featured__grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(var(--space-4), 1.5vw, var(--space-5));
}

.home-featured .calculator-card {
  min-height: 14rem;
  padding: var(--space-6);
}

.home-featured .calculator-card h3 {
  font-size: clamp(1.25rem, 1.6vw, 1.6rem);
}

/* Calculator directory */

.calculator-directory-page {
  min-height: 70vh;
}

.calculator-directory-page .breadcrumbs {
  padding-block: 5rem 2.5rem;
}

.directory-section {
  padding-bottom: clamp(4rem, 7vw, 6rem);
}

.directory-intro {
  display: grid;
  gap: var(--space-6);
  align-items: end;
}

.directory-intro h1 {
  max-width: none;
  margin: 0;
  font-size: clamp(2.75rem, 4vw, 3.75rem);
  line-height: 1.05;
  letter-spacing: -0.045em;
}

.directory-intro__copy > p {
  max-width: 68rem;
  margin-block: var(--space-6) 0;
  color: var(--color-muted);
  font-size: clamp(1.05rem, 1.4vw, 1.5rem);
}

.directory-search {
  width: 100%;
}

.directory-search__controls {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0;
}

.directory-search input[type="search"],
.directory-search input[type="submit"] {
  min-height: 5.5rem;
}

.directory-search input[type="search"] {
  padding-inline: var(--space-5);
  border-right: 0;
  border-radius: var(--radius-large) 0 0 var(--radius-large);
  font-size: 1.05rem;
}

.directory-search input[type="submit"] {
  min-width: 9.5rem;
  border-radius: 0 var(--radius-large) var(--radius-large) 0;
  font-size: 1rem;
}

.directory-categories {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-block: var(--space-7);
}

.directory-category-filter {
  display: inline-flex;
  align-items: center;
  gap: 0.18em;
  min-height: 3.75rem;
  padding-inline: var(--space-5);
  border: 1.5px solid var(--color-border-strong);
  border-radius: 999px;
  color: var(--color-ink);
  background: var(--color-surface);
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
}

.directory-category-filter:hover {
  border-color: var(--color-ink);
  color: var(--color-ink);
  background: var(--color-brand-tint);
}

.directory-category-filter.is-active {
  border-color: var(--color-ink);
  color: var(--color-bg);
  background: var(--color-ink);
}

.directory-results__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.directory-results__summary h2,
.directory-results__summary p {
  margin: 0;
}

.directory-results__summary p {
  color: var(--color-muted);
  font-weight: 700;
}

.directory-card-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-5);
}

.directory-card-grid .calculator-card {
  min-height: 15.75rem;
  padding: var(--space-6);
}

.directory-card-grid .calculator-card h3 {
  font-size: clamp(1.25rem, 1.5vw, 1.55rem);
}

.directory-empty-state {
  max-width: 46rem;
}

/* Shared content metadata */

.content-byline,
.content-review-date {
  margin-block: var(--space-3) 0;
  color: var(--color-muted);
  font-size: 0.95rem;
}

.content-review-date {
  margin-top: var(--space-1);
}

/* Search, filters, and form controls */

.calculator-search {
  max-width: 42rem;
}

.calculator-search label,
.field label {
  display: block;
  margin-bottom: var(--space-2);
  font-weight: 750;
}

.calculator-search__controls {
  display: grid;
  gap: var(--space-3);
}

input,
select,
button,
input[type="submit"] {
  min-height: 3.25rem;
  border: 1.5px solid var(--color-border-strong);
  border-radius: var(--radius-small);
  font: inherit;
}

input,
select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  color: var(--color-ink);
  background: var(--color-surface);
  transition: border-color 120ms ease, box-shadow 120ms ease;
}

.field input[type="number"],
.field input[type="text"] {
  font-family: "Space Mono", monospace;
  font-weight: 700;
}

/* Mouse focus receives subtle polish; :focus-visible in layout.css remains
   the strong keyboard indicator. */
input:focus,
select:focus {
  border-color: var(--color-brand);
  box-shadow: 0 0 0 3px var(--color-brand-ring);
}

select {
  padding-right: var(--space-7);
  background-image: var(--image-select-chevron);
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  appearance: none;
}

button,
input[type="submit"] {
  padding: var(--space-3) var(--space-5);
  border-color: var(--color-brand);
  color: var(--color-on-brand);
  background: var(--color-brand);
  font-weight: 700;
  cursor: pointer;
}

@media (min-width: 44rem) {
  .calculator-search__controls {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  input,
  select,
  button,
  input[type="submit"] {
    min-height: 2.875rem;
  }

  .home-search .calculator-search__controls {
    gap: 0;
  }

  .home-search input[type="search"],
  .home-search input[type="submit"] {
    min-height: 5.25rem;
  }

  .home-search input[type="search"] {
    padding-inline: var(--space-5);
    border-right: 0;
    border-radius: var(--radius-large) 0 0 var(--radius-large);
    font-size: 1.1rem;
  }

  .home-search input[type="submit"] {
    min-width: 17.25rem;
    border-color: var(--color-accent);
    border-radius: 0 var(--radius-large) var(--radius-large) 0;
    color: var(--color-on-accent);
    background: var(--color-accent);
    font-size: 1.05rem;
  }
}

@media (min-width: 64rem) {
  .directory-intro {
    grid-template-columns: minmax(0, 1fr) minmax(36rem, 45rem);
  }
}

@media (max-width: 68rem) {
  .directory-card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 50rem) {
  .home-featured__grid {
    grid-template-columns: 1fr;
  }

  .home-featured .calculator-card {
    min-height: 0;
  }

  .calculator-directory-page .breadcrumbs {
    padding-block: var(--space-5) var(--space-4);
  }

  .directory-intro {
    gap: var(--space-5);
  }

  .directory-search__controls {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }

  .directory-search input[type="search"] {
    border-right: 1.5px solid var(--color-border-strong);
    border-radius: var(--radius-large);
  }

  .directory-search input[type="submit"] {
    width: 100%;
    border-radius: var(--radius-large);
  }

  .directory-categories {
    margin-block: var(--space-6);
  }

  .directory-category-filter {
    min-height: 2.75rem;
    padding-inline: var(--space-4);
  }

  .directory-card-grid {
    grid-template-columns: 1fr;
  }

  .directory-card-grid .calculator-card {
    min-height: 0;
  }
}