/* ════════════════════════════════════════════════════════════════════════════
   MyFoodExplorer — Calculator System styles  (assets/css/calculators.css)
   ════════════════════════════════════════════════════════════════════════════
   Loaded ONLY on the calculator parent page and calculator child pages
   (conditional enqueue in inc/calculators.php). Never loaded globally, never
   on recipes/blog/archives → zero CSS bloat elsewhere.

   Covers:
     • PART 2 — Calculator archive grid (3 / 2 / 1 responsive, CSS only)
     • PART 7 — Related Calculators block (reuses the grid)
     • Calculator card (.mfe-calc-card) — image, title, excerpt, "Open Tool"
     • Breadcrumb spacing on calculator child pages
   ════════════════════════════════════════════════════════════════════════════ */

/* ── Calculator parent grid section ─────────────────────────────────────────── */
.mfe-calc-grid-section {
  margin-top: 2.5rem;
}
.mfe-calc-grid-header {
  text-align: center;
  margin-bottom: 2rem;
}
.mfe-calc-grid-title {
  font-family: var(--mfe-font-heading);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--mfe-text);
  margin-bottom: .4rem;
}
.mfe-calc-grid-sub {
  color: var(--mfe-text-light);
  font-size: .95rem;
}

/* ── The grid: 3 col desktop / 2 col tablet / 1 col mobile ──────────────────── */
.mfe-calc-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
@media (min-width: 640px) {
  .mfe-calc-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 960px) {
  .mfe-calc-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ── Calculator card ────────────────────────────────────────────────────────── */
.mfe-calc-card {
  display: flex;
  flex-direction: column;
  background: var(--mfe-bg-card);
  border: 1px solid var(--mfe-border-light);
  border-radius: var(--mfe-radius);
  overflow: hidden;
  box-shadow: var(--mfe-shadow-card);
  transition: transform var(--mfe-transition), box-shadow var(--mfe-transition), border-color var(--mfe-transition);
  min-width: 0; /* prevent grid blowout */
}
.mfe-calc-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--mfe-shadow-md);
  border-color: var(--mfe-primary);
}
.mfe-calc-card-media {
  display: block;
  position: relative;
  aspect-ratio: 4 / 3;
  background: var(--mfe-bg-alt);
  overflow: hidden;
}
.mfe-calc-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .35s ease;
}
.mfe-calc-card:hover .mfe-calc-card-media img {
  transform: scale(1.04);
}
.mfe-calc-card-body {
  display: flex;
  flex-direction: column;
  gap: .55rem;
  padding: 1.1rem 1.15rem 1.25rem;
  flex: 1;
}
.mfe-calc-card-title {
  font-family: var(--mfe-font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1.25;
  margin: 0;
  color: var(--mfe-text);
}
.mfe-calc-card-title a {
  color: inherit;
  text-decoration: none;
}
.mfe-calc-card-title a:hover {
  color: var(--mfe-primary);
}
.mfe-calc-card-excerpt {
  color: var(--mfe-text-light);
  font-size: .9rem;
  line-height: 1.55;
  margin: 0;
  /* clamp to keep card heights tidy across the grid */
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.mfe-calc-card-btn {
  margin-top: auto;
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .55rem 1rem;
  border-radius: 8px;
  font-size: .85rem;
  font-weight: 600;
  background: var(--mfe-primary);
  color: #fff;
  text-decoration: none;
  transition: background var(--mfe-transition), transform var(--mfe-transition);
  /* MOBILE: guaranteed touch target */
  min-height: 40px;
}
.mfe-calc-card-btn:hover {
  background: var(--mfe-primary-dark);
  color: #fff;
  transform: translateX(2px);
}
.mfe-calc-card-btn svg {
  transition: transform var(--mfe-transition);
}
.mfe-calc-card-btn:hover svg {
  transform: translateX(2px);
}

/* ── Related Calculators block (bottom of calculator child pages) ───────────── */
.mfe-calc-related {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--mfe-border-light);
}
.mfe-calc-related-header {
  text-align: center;
  margin-bottom: 1.75rem;
}
.mfe-calc-related-title {
  font-family: var(--mfe-font-heading);
  font-size: clamp(1.3rem, 2.5vw, 1.75rem);
  font-weight: 700;
  color: var(--mfe-text);
}
/* The related grid reuses .mfe-calc-grid (3/2/1). Slightly tighter gap. */
.mfe-calc-grid--related {
  gap: 1.25rem;
}

/* ── Breadcrumb spacing on calculator child pages ─────────────────────────────
   .mfe-breadcrumbs base styles live in main.css; this just adjusts placement
   so the breadcrumb sits cleanly above the page title. */
.mfe-calc-breadcrumbs {
  margin-bottom: 1rem;
}

/* ── Mobile readability ─────────────────────────────────────────────────────── */
@media (max-width: 639px) {
  .mfe-calc-grid-section { margin-top: 1.75rem; }
  .mfe-calc-card-body { padding: 1rem; }
  .mfe-calc-related { margin-top: 2rem; padding-top: 1.5rem; }
}

/* ── Print ──────────────────────────────────────────────────────────────────── */
@media print {
  .mfe-calc-related { display: none; }
  .mfe-calc-card { box-shadow: none; border: 1px solid #ccc; break-inside: avoid; }
}