/*
 * Storage Container Hub — Frontend CSS
 * Mobile-first | Core Web Vitals optimized
 * Amazon CTA: #ea580c | Accent: #2563eb | Text: #1a1a2e
 */

/* ============================================================
   Custom Properties
   ============================================================ */
:root {
  --sch-color-primary:    #2563eb;
  --sch-color-primary-dk: #1d4ed8;
  --sch-color-amazon:     #ea580c;
  --sch-color-amazon-dk:  #c2410c;
  --sch-color-success:    #16a34a;
  --sch-color-bg:         #ffffff;
  --sch-color-bg-alt:     #f8fafc;
  --sch-color-bg-dark:    #1e293b;
  --sch-color-text:       #1a1a2e;
  --sch-color-text-muted: #64748b;
  --sch-color-border:     #e2e8f0;
  --sch-color-star:       #f59e0b;

  --sch-radius:     8px;
  --sch-radius-lg:  12px;
  --sch-radius-xl:  16px;
  --sch-shadow-sm:  0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --sch-shadow-md:  0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);
  --sch-shadow-lg:  0 10px 15px rgba(0,0,0,.08), 0 4px 6px rgba(0,0,0,.05);

  --sch-font:       -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --sch-max-width:  1280px;
  --sch-gap:        1.5rem;
}

/* ============================================================
   Utility Reset
   ============================================================ */
.sch-page *,
.sch-homepage *,
.sch-hero * {
  box-sizing: border-box;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ============================================================
   Layout Helpers
   ============================================================ */
.sch-container {
  width: 100%;
  max-width: var(--sch-max-width);
  margin: 0 auto;
  padding: 0 1rem;
}
@media (min-width: 640px)  { .sch-container { padding: 0 1.5rem; } }
@media (min-width: 1024px) { .sch-container { padding: 0 2rem; } }

.sch-section {
  padding: 3rem 0;
  font-family: var(--sch-font);
}
.sch-section--bg {
  background: var(--sch-color-bg-alt);
}
.sch-section__title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--sch-color-text);
  margin: 0 0 .5rem;
  text-align: center;
}
.sch-section__subtitle {
  color: var(--sch-color-text-muted);
  text-align: center;
  margin: 0 0 2rem;
  font-size: 1.05rem;
}
.sch-section__more {
  text-align: center;
  margin-top: 2rem;
}

/* ============================================================
   Breadcrumbs
   ============================================================ */
.sch-breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem .5rem;
  font-size: .85rem;
  color: rgba(255,255,255,.75);
  margin-bottom: .75rem;
  list-style: none;
  padding: 0;
}
.sch-breadcrumbs a {
  color: rgba(255,255,255,.85);
  text-decoration: none;
}
.sch-breadcrumbs a:hover { text-decoration: underline; }
.sch-breadcrumbs__sep { opacity: .5; }
.sch-breadcrumbs--dark { color: var(--sch-color-text-muted); }
.sch-breadcrumbs--dark a { color: var(--sch-color-primary); }

/* ============================================================
   Hero Sections
   ============================================================ */
.sch-hero {
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  color: #fff;
  padding: 3rem 0 2.5rem;
  font-family: var(--sch-font);
}
.sch-hero--home {
  background: linear-gradient(135deg, #1e293b 0%, #1d4ed8 100%);
  padding: 4.5rem 0 3.5rem;
}
.sch-hero__headline {
  font-size: clamp(1.75rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  margin: 0 0 .75rem;
  letter-spacing: -.02em;
}
.sch-hero__tagline {
  font-size: clamp(1rem, 2vw, 1.2rem);
  opacity: .85;
  margin: 0 0 2rem;
  max-width: 600px;
}
.sch-hero__intro {
  font-size: 1.05rem;
  opacity: .88;
  margin: 0 0 1.5rem;
  max-width: 720px;
  line-height: 1.7;
}
.sch-hero__cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}
.sch-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.5rem;
  font-size: .875rem;
  opacity: .75;
}
.sch-hero__badge-strip {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem 1.5rem;
  margin-top: 2rem;
  font-size: .875rem;
  opacity: .75;
}

/* ============================================================
   Buttons
   ============================================================ */
.sch-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  padding: .65rem 1.35rem;
  border-radius: var(--sch-radius);
  font-family: var(--sch-font);
  font-weight: 600;
  font-size: .9375rem;
  text-decoration: none;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background .2s, box-shadow .2s, transform .1s;
  white-space: normal;
  text-align: center;
}
.sch-btn:focus-visible {
  outline: 3px solid var(--sch-color-primary);
  outline-offset: 2px;
}
.sch-btn--amazon {
  background: var(--sch-color-amazon);
  color: #fff;
  border-color: var(--sch-color-amazon);
}
.sch-btn--amazon:hover {
  background: var(--sch-color-amazon-dk);
  border-color: var(--sch-color-amazon-dk);
  box-shadow: var(--sch-shadow-md);
  transform: translateY(-1px);
  color: #fff;
  text-decoration: none;
}
.sch-btn--secondary {
  background: rgba(255,255,255,.15);
  color: #fff;
  border-color: rgba(255,255,255,.4);
  backdrop-filter: blur(4px);
}
.sch-btn--secondary:hover {
  background: rgba(255,255,255,.25);
  color: #fff;
  text-decoration: none;
}
.sch-btn--outline {
  background: transparent;
  color: var(--sch-color-primary);
  border-color: var(--sch-color-primary);
}
.sch-btn--outline:hover {
  background: var(--sch-color-primary);
  color: #fff;
  text-decoration: none;
}
.sch-btn--ghost {
  background: transparent;
  color: var(--sch-color-text-muted);
  border-color: var(--sch-color-border);
}
.sch-btn--ghost:hover { background: var(--sch-color-bg-alt); color: var(--sch-color-text); }
.sch-btn--filter {
  background: var(--sch-color-primary);
  color: #fff;
  border-color: var(--sch-color-primary);
}
.sch-btn--filter:hover { background: var(--sch-color-primary-dk); text-decoration: none; color: #fff; }
.sch-btn--full  { width: 100%; }
.sch-btn--sm    { padding: .45rem .9rem; font-size: .875rem; }
.sch-btn--disabled { background: var(--sch-color-border); color: var(--sch-color-text-muted); border-color: var(--sch-color-border); cursor: not-allowed; }

/* ============================================================
   Global Site Nav
   ============================================================ */
.sch-site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 23, 42, .95);
  border-bottom: 1px solid rgba(255,255,255,.1);
  backdrop-filter: blur(6px);
}
.sch-site-nav__inner {
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  gap: .75rem;
  padding-top: .65rem;
  padding-bottom: .65rem;
  overflow-x: auto;
  scrollbar-width: thin;
}
.sch-site-nav__link {
  color: #e2e8f0;
  text-decoration: none;
  font-weight: 600;
  font-size: .95rem;
  padding: .45rem .8rem;
  border-radius: 999px;
  border: 1px solid transparent;
}
.sch-site-nav__link:hover {
  color: #fff;
  border-color: rgba(255,255,255,.22);
  background: rgba(255,255,255,.08);
  text-decoration: none;
}
.sch-site-nav__link.is-active {
  color: #fff;
  background: rgba(37, 99, 235, .35);
  border-color: rgba(191, 219, 254, .45);
}

/* ============================================================
   Resources index
   ============================================================ */
.sch-resource-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
@media (min-width: 900px) {
  .sch-resource-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
.sch-resource-card {
  background: #fff;
  border: 1px solid var(--sch-color-border);
  border-radius: var(--sch-radius-lg);
  padding: 1rem 1rem 1.1rem;
  box-shadow: var(--sch-shadow-sm);
}
.sch-resource-card__title {
  margin: 0 0 .45rem;
  font-size: 1.1rem;
}
.sch-resource-card__title a {
  color: var(--sch-color-primary);
  text-decoration: none;
}
.sch-resource-card__title a:hover {
  text-decoration: underline;
}
.sch-resource-card__desc {
  color: var(--sch-color-text-muted);
  margin: 0 0 .8rem;
  font-size: .95rem;
}
.sch-resource-list {
  margin: 0;
  padding-left: 1rem;
  columns: 2;
  column-gap: 1rem;
}
@media (max-width: 640px) {
  .sch-resource-list {
    columns: 1;
  }
}
.sch-resource-list li {
  break-inside: avoid;
  margin: 0 0 .35rem;
}
.sch-resource-list a {
  color: #0f172a;
  text-decoration: none;
}
.sch-resource-list a:hover {
  color: var(--sch-color-primary);
  text-decoration: underline;
}

/* ============================================================
   Pagination
   ============================================================ */
.sch-pagination {
  margin-top: 2rem;
  display: flex;
  justify-content: center;
}
.sch-pagination ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  padding: 0;
  margin: 0;
}
.sch-pagination a,
.sch-pagination span {
  display: inline-block;
  padding: .45rem .75rem;
  border: 1px solid var(--sch-color-border);
  border-radius: 8px;
  text-decoration: none;
  color: var(--sch-color-text);
  background: #fff;
}
.sch-pagination a:hover {
  border-color: var(--sch-color-primary);
  color: var(--sch-color-primary);
}
.sch-pagination .current {
  color: #fff;
  border-color: var(--sch-color-primary);
  background: var(--sch-color-primary);
}

/* ============================================================
   Category Grid
   ============================================================ */
.sch-category-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
@media (min-width: 640px)  { .sch-category-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1024px) { .sch-category-grid { grid-template-columns: repeat(5, 1fr); } }

.sch-category-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
  padding: 1.25rem 1rem;
  background: var(--sch-color-bg);
  border: 2px solid var(--sch-color-border);
  border-radius: var(--sch-radius-lg);
  text-decoration: none;
  color: var(--sch-color-text);
  text-align: center;
  transition: border-color .2s, box-shadow .2s, transform .15s;
  contain: layout paint;
}
.sch-category-card:hover {
  border-color: var(--cat-color, var(--sch-color-primary));
  box-shadow: var(--sch-shadow-md);
  transform: translateY(-2px);
  text-decoration: none;
  color: var(--sch-color-text);
}
.sch-category-card__icon {
  font-size: 2rem;
  line-height: 1;
}
.sch-category-card__label {
  font-weight: 700;
  font-size: .9375rem;
  line-height: 1.3;
}
.sch-category-card__desc {
  font-size: .8rem;
  color: var(--sch-color-text-muted);
  line-height: 1.4;
}
.sch-category-card__link {
  font-size: .8125rem;
  color: var(--cat-color, var(--sch-color-primary));
  font-weight: 600;
  margin-top: auto;
}

/* ============================================================
   Product Grid
   ============================================================ */
.sch-product-grid {
  display: grid;
  gap: var(--sch-gap);
  grid-template-columns: 1fr;
}
@media (min-width: 640px)  { .sch-product-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .sch-product-grid--3col { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1024px) { .sch-product-grid--4col { grid-template-columns: repeat(4, 1fr); } }

/* ============================================================
   Product Card
   ============================================================ */
.sch-product-card {
  display: flex;
  flex-direction: column;
  background: var(--sch-color-bg);
  border: 1px solid var(--sch-color-border);
  border-radius: var(--sch-radius-lg);
  overflow: hidden;
  box-shadow: var(--sch-shadow-sm);
  transition: box-shadow .2s, transform .15s;
  contain: layout paint;
  font-family: var(--sch-font);
}
.sch-product-card:hover {
  box-shadow: var(--sch-shadow-lg);
  transform: translateY(-3px);
}
.sch-product-card__image-wrap {
  position: relative;
  aspect-ratio: 1 / 1;
  background: var(--sch-color-bg-alt);
  overflow: hidden;
}
.sch-product-card__image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: .75rem;
  transition: transform .3s;
}
.sch-product-card:hover .sch-product-card__image { transform: scale(1.04); }
.sch-product-card__image--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.5rem;
  color: var(--sch-color-border);
}
.sch-product-card__badge {
  position: absolute;
  top: .5rem;
  left: .5rem;
  background: var(--sch-color-text);
  color: #fff;
  font-size: .7rem;
  font-weight: 700;
  padding: .2rem .5rem;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: .05em;
}

.sch-product-card__body {
  padding: 1rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: .5rem;
}
.sch-product-card__brand {
  font-size: .76rem;
  font-weight: 600;
  color: var(--sch-color-primary);
  text-transform: uppercase;
  letter-spacing: .06em;
}
.sch-product-card__title {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--sch-color-text);
  margin: 0;
  overflow-wrap: anywhere;
}
.sch-product-card__rating {
  display: flex;
  align-items: center;
  gap: .35rem;
  flex-wrap: wrap;
}
.sch-product-card__rating-value  { font-weight: 700; font-size: .875rem; }
.sch-product-card__review-count  { font-size: .8rem; color: var(--sch-color-text-muted); }

.sch-product-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
}
.sch-chip {
  display: inline-flex;
  align-items: center;
  gap: .25rem;
  padding: .2rem .6rem;
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 600;
  border: 1px solid transparent;
}
.sch-chip svg { width: .8rem; height: .8rem; }
.sch-chip--material  { background: #eff6ff; color: #1d4ed8; border-color: #bfdbfe; }
.sch-chip--capacity  { background: #f0fdf4; color: #15803d; border-color: #bbf7d0; }
.sch-chip--best-for  { background: #fff7ed; color: #b45309; border-color: #fed7aa; }

.sch-product-card__pros {
  list-style: none;
  padding: 0;
  margin: .25rem 0 0;
  font-size: .85rem;
  color: var(--sch-color-success);
  display: flex;
  flex-direction: column;
  gap: .2rem;
}
.sch-product-card__pros li::before { content: "✓ "; font-weight: 700; }

.sch-product-card__footer {
  padding: 1rem;
  border-top: 1px solid var(--sch-color-border);
  display: flex;
  flex-direction: column;
  gap: .6rem;
}
.sch-product-card__footer .sch-btn {
  width: 100%;
}
.sch-price {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--sch-color-text);
}
.sch-price--check { color: var(--sch-color-text-muted); font-size: .9rem; }

/* ============================================================
   Star Ratings
   ============================================================ */
.sch-stars {
  display: inline-flex;
  gap: 1px;
  color: var(--sch-color-star);
  font-size: 1rem;
  line-height: 1;
}
.sch-stars--sm { font-size: .8rem; }
.sch-star--full   { color: var(--sch-color-star); }
.sch-star--half   { color: var(--sch-color-star); }
.sch-star--empty  { color: #d1d5db; }

/* ============================================================
   Comparison Table
   ============================================================ */
.sch-comparison-table-wrap {
  font-family: var(--sch-font);
}
.sch-comparison-table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--sch-color-border);
  border-radius: var(--sch-radius-lg);
}
.sch-comparison-table {
  width: 100%;
  min-width: 600px;
  border-collapse: collapse;
  font-size: .9rem;
}
.sch-comparison-table thead {
  background: var(--sch-color-bg-alt);
  border-bottom: 2px solid var(--sch-color-border);
}
.sch-comparison-table th,
.sch-comparison-table td {
  padding: .75rem 1rem;
  text-align: left;
  vertical-align: middle;
  border-bottom: 1px solid var(--sch-color-border);
}
.sch-comparison-table th {
  font-weight: 700;
  font-size: .8125rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--sch-color-text-muted);
  white-space: nowrap;
}
.sch-comparison-table__row:last-child td { border-bottom: none; }
.sch-comparison-table__row--best { background: #fffbeb; }

.sch-comparison-table__product-cell {
  display: flex;
  align-items: center;
  gap: .75rem;
}
.sch-comparison-table__thumb {
  width: 60px;
  height: 60px;
  object-fit: contain;
  border-radius: var(--sch-radius);
  background: var(--sch-color-bg-alt);
  flex-shrink: 0;
}
.sch-comparison-table__thumb--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}
.sch-comparison-table__name-wrap { display: flex; flex-direction: column; gap: .15rem; }
.sch-comparison-table__name { font-weight: 600; color: var(--sch-color-text); }
.sch-comparison-table__brand { font-size: .75rem; color: var(--sch-color-text-muted); }
.sch-comparison-table__disclaimer { font-size: .75rem; color: var(--sch-color-text-muted); margin-top: .5rem; }
.sch-comparison-table__name,
.sch-guide-link-card__title {
  overflow-wrap: anywhere;
}

.sch-comparison-rating { display: flex; align-items: center; gap: .3rem; flex-wrap: wrap; }
.sch-comparison-rating__value { font-weight: 700; font-size: .875rem; }
.sch-comparison-rating__count { font-size: .775rem; color: var(--sch-color-text-muted); }

.sch-badge {
  display: inline-block;
  padding: .2rem .5rem;
  border-radius: 4px;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .04em;
}
.sch-badge--best-pick {
  background: #fef3c7;
  color: #92400e;
  border: 1px solid #fde68a;
}

/* ============================================================
   Filter Bar
   ============================================================ */
.sch-filter-bar {
  background: var(--sch-color-bg);
  border: 1px solid var(--sch-color-border);
  border-radius: var(--sch-radius-lg);
  padding: .875rem 1.25rem;
  margin-bottom: 1.5rem;
  position: sticky;
  top: 2rem;
  z-index: 10;
  box-shadow: var(--sch-shadow-sm);
  font-family: var(--sch-font);
}
.sch-filter-bar__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .75rem;
}
.sch-filter-bar__label {
  display: flex;
  align-items: center;
  gap: .3rem;
  font-weight: 700;
  font-size: .875rem;
  color: var(--sch-color-text);
  flex-shrink: 0;
}
.sch-filter-bar__icon { width: 1rem; height: 1rem; }
.sch-filter-bar__field { display: flex; align-items: center; }
.sch-filter-bar__field--action { display: flex; gap: .5rem; margin-left: auto; }

.sch-filter-select {
  appearance: none;
  background: var(--sch-color-bg-alt) url("data:image/svg+xml,%3Csvg viewBox='0 0 20 20' fill='%2364748b' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill-rule='evenodd' d='M5.293 7.293a1 1 0 011.414 0L10 10.586l3.293-3.293a1 1 0 111.414 1.414l-4 4a1 1 0 01-1.414 0l-4-4a1 1 0 010-1.414z'/%3E%3C/svg%3E") no-repeat right .5rem center / 1rem;
  border: 1px solid var(--sch-color-border);
  border-radius: var(--sch-radius);
  padding: .45rem 2rem .45rem .75rem;
  font-size: .875rem;
  color: var(--sch-color-text);
  cursor: pointer;
  font-family: var(--sch-font);
  transition: border-color .15s;
}
.sch-filter-select:focus { outline: none; border-color: var(--sch-color-primary); }
.sch-filter-bar__loading {
  padding: .5rem 0 0;
  font-size: .85rem;
  color: var(--sch-color-text-muted);
  display: flex;
  align-items: center;
  gap: .5rem;
}
.sch-filter-bar__loading[hidden] { display: none !important; }

/* ============================================================
   Buying Guide
   ============================================================ */
.sch-buying-guide { font-family: var(--sch-font); }
.sch-buying-guide__title {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 1.5rem;
  color: var(--sch-color-text);
}
.sch-buying-guide__sections { display: flex; flex-direction: column; gap: 1.5rem; }
.sch-buying-guide__section {
  border: 1px solid var(--sch-color-border);
  border-radius: var(--sch-radius-lg);
  padding: 1.5rem;
  background: var(--sch-color-bg);
}
.sch-buying-guide__section-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--sch-color-text);
  margin: 0 0 .75rem;
  display: flex;
  align-items: center;
  gap: .5rem;
}
.sch-buying-guide__section-icon { font-size: 1.25rem; }
.sch-buying-guide__section-content {
  color: var(--sch-color-text);
  line-height: 1.7;
  font-size: .9375rem;
}
.sch-buying-guide__tips {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
  display: flex;
  flex-direction: column;
  gap: .5rem;
}
.sch-buying-guide__tip {
  display: flex;
  gap: .5rem;
  font-size: .9rem;
  color: var(--sch-color-text);
}
.sch-buying-guide__tip-icon { color: var(--sch-color-success); font-weight: 700; flex-shrink: 0; }

.sch-table { width: 100%; border-collapse: collapse; font-size: .875rem; margin-top: .75rem; }
.sch-table th, .sch-table td {
  padding: .6rem .75rem;
  text-align: left;
  border: 1px solid var(--sch-color-border);
}
.sch-table th { background: var(--sch-color-bg-alt); font-weight: 700; }
.sch-table--guide { overflow-x: auto; display: block; }

/* ============================================================
   FAQ Accordion
   ============================================================ */
.sch-faq { font-family: var(--sch-font); }
.sch-faq__title {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 1.25rem;
  color: var(--sch-color-text);
}
.sch-faq__list { display: flex; flex-direction: column; gap: .5rem; }
.sch-faq__item {
  border: 1px solid var(--sch-color-border);
  border-radius: var(--sch-radius);
  overflow: hidden;
}
.sch-faq__question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: none;
  border: none;
  text-align: left;
  font-family: var(--sch-font);
  font-size: .9375rem;
  font-weight: 600;
  color: var(--sch-color-text);
  cursor: pointer;
  transition: background .15s;
}
.sch-faq__question:hover { background: var(--sch-color-bg-alt); }
.sch-faq__question[aria-expanded="true"] { background: var(--sch-color-bg-alt); color: var(--sch-color-primary); }
.sch-faq__chevron {
  width: 1.1rem;
  height: 1.1rem;
  flex-shrink: 0;
  transition: transform .2s ease;
}
.sch-faq__question[aria-expanded="true"] .sch-faq__chevron { transform: rotate(180deg); }
.sch-faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease;
}
.sch-faq__answer[aria-hidden="false"] { max-height: 600px; }
.sch-faq__answer-inner {
  padding: .5rem 1.25rem 1rem;
  font-size: .9rem;
  line-height: 1.7;
  color: var(--sch-color-text);
  border-top: 1px solid var(--sch-color-border);
}
.sch-faq__answer-inner p { margin: 0 0 .6rem; }
.sch-faq__answer-inner p:last-child { margin-bottom: 0; }

/* ============================================================
   Subcategory Nav / Sibling Nav
   ============================================================ */
.sch-subcat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: .75rem;
}
@media (min-width: 640px)  { .sch-subcat-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1024px) { .sch-subcat-grid { grid-template-columns: repeat(4, 1fr); } }

.sch-subcat-card {
  padding: .75rem 1rem;
  border: 1px solid var(--sch-color-border);
  border-radius: var(--sch-radius);
  background: var(--sch-color-bg);
  text-decoration: none;
  color: var(--sch-color-text);
  font-size: .9rem;
  font-weight: 600;
  transition: border-color .15s, background .15s;
  display: block;
}
.sch-subcat-card:hover {
  border-color: var(--sch-color-primary);
  background: #eff6ff;
  color: var(--sch-color-primary);
  text-decoration: none;
}

.sch-sibling-nav {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  padding: .75rem 0;
  border-top: 1px solid var(--sch-color-border);
  border-bottom: 1px solid var(--sch-color-border);
  margin-bottom: 1.5rem;
}
.sch-sibling-nav a {
  padding: .3rem .75rem;
  border: 1px solid var(--sch-color-border);
  border-radius: 999px;
  font-size: .8125rem;
  text-decoration: none;
  color: var(--sch-color-text-muted);
  font-family: var(--sch-font);
  transition: border-color .15s, color .15s;
}
.sch-sibling-nav a:hover, .sch-sibling-nav a.is-active {
  border-color: var(--sch-color-primary);
  color: var(--sch-color-primary);
}

/* ============================================================
   Internal Links
   ============================================================ */
.sch-internal-links { font-family: var(--sch-font); }
.sch-internal-links__title {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0 0 1rem;
  color: var(--sch-color-text);
}
.sch-link-group { margin-bottom: 1.25rem; }
.sch-link-group__label {
  font-size: .8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--sch-color-text-muted);
  margin: 0 0 .6rem;
}
.sch-link-group__list {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  list-style: none;
  padding: 0;
  margin: 0;
}
.sch-link-group__list a {
  font-size: .875rem;
  padding: .3rem .7rem;
  background: var(--sch-color-bg-alt);
  border: 1px solid var(--sch-color-border);
  border-radius: var(--sch-radius);
  text-decoration: none;
  color: var(--sch-color-text);
  transition: border-color .15s;
}
.sch-link-group__list a:hover {
  border-color: var(--sch-color-primary);
  color: var(--sch-color-primary);
}

/* ============================================================
   Category Nav Footer Bar
   ============================================================ */
.sch-cat-nav { display: flex; flex-wrap: wrap; gap: .5rem; justify-content: center; }
.sch-cat-nav a {
  padding: .4rem .9rem;
  border: 1px solid var(--sch-color-border);
  border-radius: 999px;
  font-size: .85rem;
  text-decoration: none;
  color: var(--sch-color-text);
  font-family: var(--sch-font);
  transition: background .15s, border-color .15s;
}
.sch-cat-nav a:hover { background: var(--sch-color-bg-alt); border-color: var(--sch-color-primary); color: var(--sch-color-primary); }

/* ============================================================
   Homepage Specific
   ============================================================ */
.sch-guide-links-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: .75rem;
}
@media (min-width: 640px)  { .sch-guide-links-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .sch-guide-links-grid { grid-template-columns: repeat(3, 1fr); } }

.sch-guide-link-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--sch-color-bg);
  border: 1px solid var(--sch-color-border);
  border-radius: var(--sch-radius);
  text-decoration: none;
  color: var(--sch-color-text);
  font-family: var(--sch-font);
  transition: border-color .15s, box-shadow .15s;
}
.sch-guide-link-card:hover {
  border-color: var(--sch-color-primary);
  box-shadow: var(--sch-shadow-sm);
  color: var(--sch-color-text);
  text-decoration: none;
}
.sch-guide-link-card__title { font-size: .9375rem; font-weight: 600; }
.sch-guide-link-card__arrow { color: var(--sch-color-primary); font-weight: 700; flex-shrink: 0; }

.sch-tips-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}
@media (min-width: 640px) { .sch-tips-grid { grid-template-columns: repeat(2, 1fr); } }

.sch-tip-card {
  background: var(--sch-color-bg);
  border: 1px solid var(--sch-color-border);
  border-radius: var(--sch-radius-lg);
  padding: 1.5rem;
}
.sch-tip-card__icon { font-size: 1.75rem; margin-bottom: .5rem; }
.sch-tip-card h3 { font-size: 1rem; font-weight: 700; margin: 0 0 .5rem; color: var(--sch-color-text); }
.sch-tip-card p { font-size: .9rem; color: var(--sch-color-text-muted); line-height: 1.6; margin: 0; }

/* ============================================================
   Longtail Guides Grid
   ============================================================ */
.sch-longtail-grid {
  display: grid;
  gap: .75rem;
  grid-template-columns: 1fr;
}
@media (min-width: 640px)  { .sch-longtail-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .sch-longtail-grid { grid-template-columns: repeat(3, 1fr); } }

.sch-longtail-card {
  padding: .9rem 1.1rem;
  border: 1px solid var(--sch-color-border);
  border-radius: var(--sch-radius);
  background: var(--sch-color-bg);
  text-decoration: none;
  color: var(--sch-color-text);
  font-family: var(--sch-font);
  font-size: .875rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  transition: border-color .15s, box-shadow .15s;
}
.sch-longtail-card:hover {
  border-color: var(--sch-color-primary);
  box-shadow: var(--sch-shadow-sm);
  color: var(--sch-color-primary);
  text-decoration: none;
}
.sch-longtail-card__arrow { color: var(--sch-color-primary); flex-shrink: 0; font-size: .75rem; }

/* ============================================================
   Spinner (used by filter AJAX)
   ============================================================ */
.sch-spinner {
  display: inline-block;
  width: .9rem;
  height: .9rem;
  border: 2px solid var(--sch-color-border);
  border-top-color: var(--sch-color-primary);
  border-radius: 50%;
  animation: sch-spin .6s linear infinite;
}
@keyframes sch-spin { to { transform: rotate(360deg); } }

/* ============================================================
   Empty state
   ============================================================ */
.sch-empty-notice {
  text-align: center;
  padding: 2rem;
  color: var(--sch-color-text-muted);
  font-family: var(--sch-font);
  background: var(--sch-color-bg-alt);
  border-radius: var(--sch-radius);
}

/* ============================================================
   Page wrapper
   ============================================================ */
.sch-page { font-family: var(--sch-font); color: var(--sch-color-text); }
.sch-page__inner { padding: 2rem 0; }

/* ============================================================
   Dedicated Product Page
   ============================================================ */
.sch-product-detail__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}
@media (min-width: 960px) {
  .sch-product-detail__grid {
    grid-template-columns: minmax(280px, 420px) 1fr;
    gap: 2rem;
    align-items: start;
  }
}

.sch-product-detail__media img,
.sch-product-detail__placeholder {
  width: 100%;
  border-radius: var(--sch-radius-lg);
  border: 1px solid var(--sch-color-border);
  background: #fff;
  box-shadow: var(--sch-shadow-sm);
}
.sch-product-detail__placeholder {
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}

.sch-product-detail__content h2,
.sch-product-detail__content h3 {
  margin-top: 0;
}

.sch-product-detail__meta {
  list-style: none;
  padding: 0;
  margin: 1rem 0;
  display: grid;
  gap: .45rem;
}

.sch-product-detail__reviews {
  padding: .9rem 1rem;
  border: 1px solid var(--sch-color-border);
  border-radius: var(--sch-radius);
  background: var(--sch-color-bg-alt);
  margin: 1rem 0;
}

.sch-product-detail__rating {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem;
  margin: 0;
}

.sch-product-detail__price {
  font-size: 1.1rem;
  margin: .75rem 0 1rem;
}

.sch-product-detail__cta {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
}

.sch-product-detail__proscons {
  margin-top: 1.5rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
@media (min-width: 860px) {
  .sch-product-detail__proscons {
    grid-template-columns: 1fr 1fr;
  }
}

.sch-product-detail__proscons > div {
  border: 1px solid var(--sch-color-border);
  border-radius: var(--sch-radius);
  padding: .9rem 1rem;
  background: #fff;
}

@media (max-width: 767px) {
  .sch-section {
    padding: 2.25rem 0;
  }

  .sch-section__title {
    font-size: 1.5rem;
  }

  .sch-section__subtitle {
    font-size: .95rem;
    margin-bottom: 1.5rem;
  }

  .sch-hero {
    padding: 2.5rem 0 2rem;
  }

  .sch-hero--home {
    padding: 3rem 0 2.5rem;
  }

  .sch-hero__headline {
    font-size: clamp(1.75rem, 9vw, 2.4rem);
  }

  .sch-hero__tagline,
  .sch-hero__intro {
    font-size: .98rem;
  }

  .sch-hero__cta-group,
  .sch-section__more,
  .sch-product-detail__cta {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: .75rem;
  }

  .sch-hero__cta-group .sch-btn,
  .sch-section__more .sch-btn,
  .sch-product-detail__cta .sch-btn {
    width: 100%;
  }

  .sch-section__more .sch-btn + .sch-btn {
    margin-left: 0 !important;
  }

  .sch-category-grid,
  .sch-subcat-grid {
    grid-template-columns: 1fr;
  }

  .sch-filter-bar {
    position: static;
    top: auto;
    padding: 1rem;
  }

  .sch-filter-bar__inner {
    align-items: stretch;
    gap: .65rem;
  }

  .sch-filter-bar__label,
  .sch-filter-bar__field,
  .sch-filter-bar__field--action {
    width: 100%;
  }

  .sch-filter-bar__field--action {
    margin-left: 0;
    flex-direction: column;
  }

  .sch-filter-select,
  .sch-filter-bar__field--action .sch-btn {
    width: 100%;
  }

  .sch-comparison-table-scroll {
    border: none;
    overflow: visible;
  }

  .sch-comparison-table {
    min-width: 0;
    border-collapse: separate;
    border-spacing: 0;
  }

  .sch-comparison-table thead {
    display: none;
  }

  .sch-comparison-table tbody,
  .sch-comparison-table tr,
  .sch-comparison-table td {
    display: block;
    width: 100%;
  }

  .sch-comparison-table tr {
    border: 1px solid var(--sch-color-border);
    border-radius: var(--sch-radius-lg);
    margin-bottom: .75rem;
    background: var(--sch-color-bg);
    overflow: hidden;
  }

  .sch-comparison-table__row--best {
    background: #fffbeb;
  }

  .sch-comparison-table td {
    border-bottom: 1px solid var(--sch-color-border);
    padding: .65rem .75rem;
  }

  .sch-comparison-table td:last-child {
    border-bottom: none;
  }

  .sch-comparison-table td::before {
    content: attr(data-label);
    display: block;
    font-size: .72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: var(--sch-color-text-muted);
    margin-bottom: .3rem;
  }

  .sch-comparison-table__col--product::before {
    content: none;
  }

  .sch-comparison-table__product-cell {
    align-items: flex-start;
  }

  .sch-comparison-table__col--cta .sch-btn {
    width: 100%;
  }

  .sch-guide-link-card,
  .sch-longtail-card {
    align-items: flex-start;
  }

  .sch-product-detail__placeholder {
    min-height: 240px;
  }
}

@media (max-width: 479px) {
  .sch-container {
    padding: 0 .875rem;
  }

  .sch-category-card,
  .sch-tip-card,
  .sch-buying-guide__section,
  .sch-guide-link-card {
    padding: 1rem;
  }

  .sch-comparison-table__thumb {
    width: 52px;
    height: 52px;
  }
}