/**
 * Category hub pages + homepage platform sections
 * Professional global web-app style — clean, fast, mobile-first
 */
:root {
  --hub-max: 1120px;
  --hub-radius: 16px;
  --hub-accent: #1d4ed8;
  --hub-accent-soft: rgba(29, 78, 216, 0.08);
  --hub-text: #0f172a;
  --hub-muted: #64748b;
  --hub-border: #e2e8f0;
  --hub-bg: #f8fafc;
  --hub-card: #ffffff;
  --hub-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
  --hub-shadow-hover: 0 16px 40px -14px rgba(15, 23, 42, 0.14);
}

/* —— Hub page shell —— */
body.hub-page {
  background: var(--hub-bg);
  color: var(--hub-text);
}

.hub-wrap {
  max-width: var(--hub-max);
  margin: 0 auto;
  padding: 0 20px 48px;
}

.hub-breadcrumb {
  font-size: 0.8125rem;
  color: var(--hub-muted);
  padding: 16px 0 8px;
}
.hub-breadcrumb a {
  color: var(--hub-muted);
  text-decoration: none;
}
.hub-breadcrumb a:hover {
  color: var(--hub-accent);
}

.hub-hero {
  padding: 28px 0 32px;
  border-bottom: 1px solid var(--hub-border);
  margin-bottom: 32px;
}
.hub-hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin: 0 0 12px;
  line-height: 1.15;
}
.hub-hero__lead {
  font-size: 1.05rem;
  color: var(--hub-muted);
  max-width: 640px;
  margin: 0;
  line-height: 1.6;
}

.hub-section-title {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
}

.hub-ad-mid {
  margin: 32px auto;
  max-width: var(--hub-max);
  padding: 0 20px;
}

/* Tool card grid */
.hub-tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
  margin-bottom: 40px;
}

.hub-tool-card {
  display: flex;
  flex-direction: column;
  background: var(--hub-card);
  border: 1px solid var(--hub-border);
  border-radius: var(--hub-radius);
  padding: 20px;
  text-decoration: none;
  color: inherit;
  box-shadow: var(--hub-shadow);
  transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}
.hub-tool-card:hover {
  border-color: #bfdbfe;
  box-shadow: var(--hub-shadow-hover);
  transform: translateY(-2px);
}
.hub-tool-card__icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--hub-accent-soft);
  color: var(--hub-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 14px;
}
.hub-tool-card__title {
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 6px;
  letter-spacing: -0.01em;
}
.hub-tool-card__desc {
  font-size: 0.875rem;
  color: var(--hub-muted);
  margin: 0 0 14px;
  line-height: 1.5;
  flex: 1;
}
.hub-tool-card__cta {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--hub-accent);
}

.hub-related {
  margin-bottom: 40px;
}
.hub-related__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.hub-related__links a {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--hub-accent);
  text-decoration: none;
  padding: 8px 14px;
  border: 1px solid var(--hub-border);
  border-radius: 999px;
  background: var(--hub-card);
  transition: background 0.15s ease, border-color 0.15s ease;
}
.hub-related__links a:hover {
  background: var(--hub-accent-soft);
  border-color: #bfdbfe;
}

/* Hub FAQ */
.hub-faq {
  margin-bottom: 24px;
}
.hub-faq details {
  border: 1px solid var(--hub-border);
  border-radius: 12px;
  background: var(--hub-card);
  margin-bottom: 10px;
  overflow: hidden;
}
.hub-faq summary {
  padding: 14px 18px;
  font-weight: 600;
  font-size: 0.9375rem;
  cursor: pointer;
  list-style: none;
}
.hub-faq summary::-webkit-details-marker {
  display: none;
}
.hub-faq details[open] summary {
  border-bottom: 1px solid var(--hub-border);
}
.hub-faq__a {
  padding: 14px 18px;
  font-size: 0.875rem;
  color: var(--hub-muted);
  line-height: 1.6;
  margin: 0;
}

/* —— Homepage platform sections (body.home-index) —— */

/* Unified section rhythm */
body.home-index .home-section {
  padding: 48px 0;
}
body.home-index .home-section--compact {
  padding-top: 24px;
}
body.home-index .home-section--alt {
  background: var(--hx-bg-elevated);
  border-block: 1px solid var(--hx-border);
}
body.home-index .home-section__inner {
  max-width: var(--hx-max);
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

body.home-index .platform-categories {
  padding: 40px 0 48px;
}
body.home-index .platform-categories .section-heading {
  margin-bottom: 20px;
}
body.home-index .platform-cat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: none;
  margin: 0;
  padding: 0;
}
@media (max-width: 900px) {
  body.home-index .platform-cat-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 520px) {
  body.home-index .platform-cat-grid {
    grid-template-columns: 1fr;
  }
}

body.home-index .platform-cat-card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--hx-bg-elevated);
  border: 1px solid var(--hx-border);
  border-radius: var(--hx-radius-lg);
  padding: 24px 22px;
  box-shadow: var(--hx-shadow);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
  position: relative;
  overflow: hidden;
}
body.home-index .platform-cat-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--hx-accent-glow) 0%, transparent 55%);
  opacity: 0;
  transition: opacity 0.2s ease;
}
body.home-index .platform-cat-card:hover {
  border-color: #bfdbfe;
  box-shadow: var(--hx-shadow-hover);
  transform: translateY(-3px);
}
body.home-index .platform-cat-card:hover::before {
  opacity: 1;
}
body.home-index .platform-cat-card__icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--hx-accent-glow);
  color: var(--hx-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: 16px;
  position: relative;
}
body.home-index .platform-cat-card__title {
  font-size: 1.0625rem;
  font-weight: 700;
  margin: 0 0 8px;
  letter-spacing: -0.02em;
  position: relative;
}
body.home-index .platform-cat-card__desc {
  font-size: 0.875rem;
  color: var(--hx-muted);
  margin: 0 0 14px;
  line-height: 1.5;
  position: relative;
}
body.home-index .platform-cat-card__link {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--hx-accent);
  position: relative;
}

body.home-index .tool-card-v2__badge--new {
  color: #1d4ed8;
  background: #eff6ff;
  border-color: #bfdbfe;
}
body.home-index .tool-card-grid--recent {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
@media (max-width: 900px) {
  body.home-index .tool-card-grid--recent {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 560px) {
  body.home-index .tool-card-grid--recent {
    grid-template-columns: 1fr;
  }
}

body.home-index .hero-cta-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  padding: 14px 24px;
  font-size: 0.9375rem;
  font-weight: 700;
  color: #fff;
  background: var(--hx-accent);
  border-radius: 12px;
  text-decoration: none;
  border: none;
  transition: background 0.15s ease, transform 0.15s ease;
}
body.home-index .hero-cta-primary:hover {
  background: var(--hx-accent-hover);
  transform: translateY(-1px);
}

body.home-index .tool-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
@media (max-width: 900px) {
  body.home-index .tool-card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 560px) {
  body.home-index .tool-card-grid {
    grid-template-columns: 1fr;
  }
}
body.home-index .tool-card-v2 {
  display: flex;
  flex-direction: column;
  min-height: 148px;
  background: var(--hx-bg-elevated);
  border: 1px solid var(--hx-border);
  border-radius: var(--hx-radius-lg);
  padding: 20px;
  text-decoration: none;
  color: inherit;
  box-shadow: var(--hx-shadow);
  transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}
body.home-index .tool-card-v2:hover {
  border-color: #bfdbfe;
  box-shadow: var(--hx-shadow-hover);
  transform: translateY(-2px);
}
body.home-index .tool-card-v2__badge {
  align-self: flex-start;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #047857;
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
  padding: 4px 9px;
  border-radius: 6px;
  margin-bottom: 12px;
}
body.home-index .tool-card-v2__title {
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 8px;
  letter-spacing: -0.02em;
  line-height: 1.3;
}
body.home-index .tool-card-v2__desc {
  font-size: 0.8125rem;
  color: var(--hx-muted);
  margin: 0 0 16px;
  flex: 1;
  line-height: 1.5;
}
body.home-index .tool-card-v2__cta {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--hx-accent);
  margin-top: auto;
}

body.home-index .home-faq {
  max-width: none;
  margin: 0;
  padding: 0;
}
body.home-index .home-faq .section-heading {
  margin-bottom: 16px;
}
body.home-index .home-faq details {
  border: 1px solid var(--hx-border);
  border-radius: 14px;
  background: var(--hx-bg-elevated);
  margin-bottom: 10px;
}
body.home-index .home-faq summary {
  padding: 16px 20px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}
body.home-index .home-faq summary::-webkit-details-marker {
  display: none;
}
body.home-index .home-faq__a {
  padding: 0 20px 16px;
  margin: 0;
  font-size: 0.9375rem;
  color: var(--hx-muted);
  line-height: 1.6;
}

body.home-index .about-preview {
  max-width: none;
  margin: 0;
  padding: 28px 24px;
}
  background: linear-gradient(135deg, #eff6ff 0%, #f8fafc 60%);
  border: 1px solid #dbeafe;
  border-radius: var(--hx-radius-lg);
  box-sizing: border-box;
}
body.home-index .about-preview h2 {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0 0 12px;
  letter-spacing: -0.02em;
}
body.home-index .about-preview p {
  font-size: 0.9375rem;
  color: var(--hx-muted);
  margin: 0 0 10px;
  line-height: 1.65;
  max-width: 720px;
}
body.home-index .about-preview__trust {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  margin: 20px 0;
}
body.home-index .about-preview__trust span {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--hx-text);
}
body.home-index .about-preview__trust span::before {
  content: "✓ ";
  color: var(--hx-accent);
}
body.home-index .about-preview a {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--hx-accent);
  text-decoration: none;
}
body.home-index .about-preview a:hover {
  text-decoration: underline;
}

body.home-index .ad-slot-mid {
  max-width: var(--hx-max);
  margin: 32px auto;
  padding: 0 20px;
}

body.home-index .site-footer--platform {
  border-top: 1px solid var(--hx-border);
  padding-top: 32px;
}
body.home-index .footer-trust {
  font-size: 0.8125rem;
  color: var(--hx-muted);
  margin-bottom: 12px;
}