/* スマプレトピック — hub / listing (v6)
   Ref: ferret (hero tiles, pickup grid), サイボウズ式 (category bar, series, tags), メルラボ (resources, product banner) */

@import url("./article-chrome.css?v=2");

:root {
  --hub-teal: #0d9488;
  --hub-teal-dark: #0f766e;
  --hub-cat-blue: #0078c8;
  --hub-cta: #ea580c;
  --hub-cta-hover: #c2410c;
  --hub-footer: #1a2332;
}

/* —— Utility bar (melabo top strip) —— */
.hub-utility-bar {
  background: #f8fafc;
  border-bottom: 1px solid var(--fn-border-subtle);
  font-size: 0.75rem;
}

.hub-utility-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.5rem 0;
  min-height: 2.75rem;
}

.hub-utility-tagline {
  margin: 0;
  color: var(--fn-ink-faint);
  font-weight: 500;
}

.hub-utility-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem 1rem;
}

.hub-utility-actions a {
  color: var(--fn-ink-muted);
  text-decoration: none;
  font-weight: 600;
}

.hub-utility-actions a:hover {
  color: var(--fn-primary);
}

/* —— Header (melabo + ferret) —— */
.hub-v6 .hub-header .site-header-inner {
  gap: 1.25rem;
}

.hub-main-nav {
  display: flex;
  gap: 0.25rem 1.25rem;
  flex: 1;
  justify-content: center;
}

.hub-main-nav a {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--fn-ink-muted);
  text-decoration: none;
  white-space: nowrap;
}

.hub-main-nav a:hover {
  color: var(--fn-primary);
}

.hub-header-search {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-width: 10rem;
  max-width: 14rem;
  min-height: 2.5rem;
  padding: 0.5rem 0.85rem;
  background: var(--fn-bg);
  border: 1px solid var(--fn-border);
  border-radius: var(--fn-radius-pill);
}

.hub-search-icon {
  color: var(--fn-ink-faint);
  font-size: 0.875rem;
}

.hub-header-search input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: transparent;
  font-family: var(--fn-sans);
  font-size: 0.8125rem;
  line-height: 1.35;
  color: var(--fn-ink-muted);
}

.hub-header-search input:focus {
  outline: none;
}

.btn-cta {
  background: var(--hub-cta);
  border-color: var(--hub-cta);
  color: #fff;
}

.btn-cta:hover {
  background: var(--hub-cta-hover);
  border-color: var(--hub-cta-hover);
  color: #fff;
}

.btn-cta--light {
  background: #fff;
  border-color: #fff;
  color: var(--hub-teal-dark);
}

.btn-cta--light:hover {
  background: rgb(255 255 255 / 92%);
  color: var(--hub-teal-dark);
}

.btn-block {
  display: block;
  width: 100%;
  text-align: center;
}

.btn-light {
  display: inline-flex;
  align-items: center;
  padding: 0.625rem 1.25rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--fn-primary);
  background: rgb(255 255 255 / 95%);
  border: 0;
  border-radius: var(--fn-radius-pill);
  text-decoration: none;
  box-shadow: var(--fn-shadow-sm);
}

.btn-light:hover {
  background: #fff;
}

.btn-outline-light {
  display: inline-flex;
  align-items: center;
  padding: 0.625rem 1.25rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: #fff;
  background: transparent;
  border: 1px solid rgb(255 255 255 / 55%);
  border-radius: var(--fn-radius-pill);
  text-decoration: none;
}

.btn-outline-light:hover {
  background: rgb(255 255 255 / 10%);
  color: #fff;
}

.hub-header-cta {
  flex-shrink: 0;
}

/* —— Category bar (サイボウズ式 blue nav) —— */
.hub-category-bar {
  position: sticky;
  top: var(--fn-header);
  z-index: 90;
  background: var(--hub-cat-blue);
  box-shadow: 0 2px 8px rgb(0 40 80 / 15%);
}

.hub-category-bar-inner {
  display: flex;
  gap: 0.25rem;
  padding: 0.5rem 0;
  overflow-x: auto;
  scrollbar-width: none;
}

.hub-category-bar-inner::-webkit-scrollbar {
  display: none;
}

.hub-cat-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  flex-shrink: 0;
  padding: 0.5rem 1rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: rgb(255 255 255 / 88%);
  text-decoration: none;
  border-radius: var(--fn-radius-pill);
  transition: background 0.15s, color 0.15s;
}

.hub-cat-pill:hover {
  background: rgb(255 255 255 / 12%);
  color: #fff;
}

.hub-cat-pill.is-active {
  background: rgb(255 255 255 / 18%);
  color: #fff;
}

.hub-cat-pill--soon {
  opacity: 0.65;
  pointer-events: none;
  cursor: default;
}

span.hub-cat-pill {
  display: inline-flex;
}

.hub-cat-icon {
  font-size: 0.6875rem;
  opacity: 0.85;
}

/* —— Intro strip —— */
.hub-intro {
  padding: 1.25rem 0;
  background: var(--fn-bg-elevated);
  border-bottom: 1px solid var(--fn-border-subtle);
}

.hub-intro-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 2rem;
}

.hub-intro-title {
  margin: 0 0 0.25rem;
  font-family: var(--fn-sans);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--fn-ink);
}

.hub-intro-lead {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--fn-ink-muted);
}

.hub-intro-note {
  margin: 0.5rem 0 0;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--fn-ink-faint);
}

.hub-intro-stats {
  display: flex;
  gap: 2rem;
  margin: 0;
}

.hub-intro-stats div {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.hub-intro-stats dt {
  margin: 0;
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--fn-ink-faint);
}

.hub-intro-stats dd {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--fn-ink);
  font-variant-numeric: tabular-nums;
}

/* —— Hero tiles (ferret) —— */
.hub-hero {
  padding: 1.5rem 0 0.5rem;
  background: var(--fn-bg-elevated);
}

.hero-tiles-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr 1fr;
  gap: 0.75rem;
  min-height: 14rem;
}

.hero-tiles-grid--single {
  grid-template-columns: 1fr;
}

.hero-tiles-grid--single .hero-tile--large {
  grid-column: 1;
  min-height: clamp(15rem, 38vw, 20rem);
}

.search-empty {
  margin: 1rem 0 0;
  padding: 1rem;
  text-align: center;
  font-size: 0.875rem;
  color: var(--fn-ink-muted);
  background: var(--fn-bg);
  border-radius: var(--fn-radius);
}

.hub-category-bar-inner .hub-cat-pill--services:last-of-type {
  margin-left: auto;
}

@media (max-width: 1024px) {
  .hub-utility-actions a[data-cta-location="hub-utility-download"] {
    display: none;
  }
}

.hero-tile {
  position: relative;
  display: block;
  min-height: 13.5rem;
  border-radius: 6px;
  overflow: hidden;
  text-decoration: none;
  color: #fff;
  box-shadow: var(--fn-shadow-sm);
  transition: transform 0.2s var(--fn-ease), box-shadow 0.2s;
}

.hero-tile:hover,
.hero-tile:focus-visible {
  color: #fff;
}

.hero-tile:hover {
  transform: translateY(-2px);
  box-shadow: var(--fn-shadow-md);
}

.hero-tile--large {
  min-height: 14rem;
}

.hero-tile--soon {
  cursor: default;
  opacity: 0.85;
}

.hero-tile-visual {
  position: absolute;
  inset: 0;
  background: linear-gradient(145deg, #1e3a8a 0%, #0d9488 100%);
  overflow: hidden;
}

.hero-tile-cover {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-tile--soon .hero-tile-visual {
  background: linear-gradient(145deg, #64748b 0%, #475569 100%);
}

.hero-tile-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 0.5rem;
  padding: 1.125rem 1.25rem;
  background: linear-gradient(180deg, rgb(0 0 0 / 0%) 20%, rgb(0 0 0 / 78%) 100%);
}

.hero-tile-tag {
  display: inline-block;
  align-self: flex-start;
  padding: 0.2rem 0.55rem;
  font-size: 0.6875rem;
  font-weight: 700;
  background: var(--hub-teal);
  border-radius: 3px;
}

.hero-tile-title {
  font-family: var(--fn-sans);
  font-size: clamp(0.9375rem, 1.8vw, 1.0625rem);
  font-weight: 700;
  line-height: 1.55;
  letter-spacing: 0.02em;
  color: #fff;
}

.hero-tile:hover .hero-tile-title,
.hero-tile:focus-visible .hero-tile-title {
  color: #fff;
}

.hero-tile--large .hero-tile-title {
  font-size: clamp(1rem, 2vw, 1.25rem);
}

/* —— Hub body —— */
.hub-body {
  padding: 2rem 0 2.5rem;
}

.hub-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) min(17rem, 100%);
  gap: 2.5rem;
  align-items: start;
}

.hub-main {
  display: flex;
  flex-direction: column;
  gap: 2.75rem;
  min-width: 0;
}

.section-head {
  margin-bottom: 1.125rem;
}

.section-head--toolbar,
.section-head--link {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 0.75rem 1rem;
}

.section-title {
  margin: 0;
  font-family: var(--fn-sans);
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--fn-ink);
}

.section-sub {
  margin: 0.35rem 0 0;
  font-size: 0.8125rem;
  color: var(--fn-ink-muted);
}

.section-more {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--hub-teal);
  text-decoration: none;
}

.section-more:hover {
  text-decoration: underline;
}

/* —— View toggle (ferret) —— */
.view-toggle {
  display: inline-flex;
  border: 1px solid var(--fn-border);
  border-radius: 4px;
  overflow: hidden;
  background: var(--fn-bg-elevated);
}

.view-toggle-btn {
  padding: 0.35rem 0.75rem;
  border: 0;
  background: transparent;
  font-family: var(--fn-sans);
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--fn-ink-muted);
  cursor: pointer;
}

.view-toggle-btn + .view-toggle-btn {
  border-left: 1px solid var(--fn-border);
}

.view-toggle-btn.is-active {
  background: var(--fn-ink);
  color: #fff;
}

/* —— Pickup grid / list (ferret) —— */
.pickup-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem 1rem;
}

.pickup-card {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  background: var(--fn-bg-elevated);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 1px 4px rgb(10 22 40 / 8%);
  transition: transform 0.2s, box-shadow 0.2s;
}

.pickup-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--fn-shadow-md);
}

.pickup-card-thumb {
  position: relative;
  aspect-ratio: 16 / 10;
  background: linear-gradient(135deg, var(--fn-primary-soft), var(--fn-accent-soft));
  overflow: hidden;
}

.pickup-card-cover,
.mini-card-cover {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.pickup-card-body {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 0.875rem 1rem 1rem;
}

.pickup-card-tag {
  align-self: flex-start;
  padding: 0.15rem 0.5rem;
  font-size: 0.625rem;
  font-weight: 700;
  color: var(--hub-teal-dark);
  background: rgb(13 148 136 / 10%);
  border-radius: 3px;
}

.pickup-card-title {
  font-family: var(--fn-sans);
  font-size: 0.9375rem;
  font-weight: 700;
  line-height: 1.6;
  letter-spacing: 0.01em;
  color: var(--fn-ink);
  transition: color 0.15s;
}

.pickup-card:hover .pickup-card-title {
  color: var(--fn-ink);
}

.pickup-card-meta {
  font-size: 0.6875rem;
  color: var(--fn-ink-faint);
}

.pickup-list {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--fn-border-subtle);
  border-radius: 4px;
  background: var(--fn-bg-elevated);
  overflow: hidden;
}

.pickup-list-row {
  display: grid;
  grid-template-columns: 7rem minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: center;
  padding: 1rem 1.125rem;
  text-decoration: none;
  color: inherit;
  border-bottom: 1px solid var(--fn-border-subtle);
  transition: background 0.15s;
}

.pickup-list-row:last-child {
  border-bottom: 0;
}

.pickup-list-row:hover {
  background: rgb(239 246 255 / 50%);
}

.pickup-list-thumb {
  aspect-ratio: 16 / 10;
  border-radius: 3px;
  background: linear-gradient(135deg, var(--fn-primary-soft), var(--fn-accent-soft));
  background-size: cover;
  background-position: center;
}

.pickup-list-body {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 0;
}

.pickup-list-tag {
  font-size: 0.625rem;
  font-weight: 700;
  color: var(--hub-teal-dark);
}

.pickup-list-title {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--fn-ink);
}

.pickup-list-desc {
  font-size: 0.8125rem;
  color: var(--fn-ink-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.pickup-list-meta {
  font-size: 0.6875rem;
  color: var(--fn-ink-faint);
  white-space: nowrap;
}

/* —— Category mini cards (ferret 4-col) —— */
.mini-card-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.mini-card {
  display: block;
  text-decoration: none;
  color: inherit;
  transition: transform 0.15s;
}

.mini-card:hover {
  transform: translateY(-2px);
}

.mini-card-thumb {
  position: relative;
  aspect-ratio: 16 / 10;
  margin-bottom: 0.625rem;
  border-radius: 4px;
  background: linear-gradient(135deg, var(--fn-primary-soft), var(--fn-accent-soft));
  overflow: hidden;
  box-shadow: 0 1px 3px rgb(10 22 40 / 8%);
}

.mini-card-tag {
  margin: 0 0 0.25rem;
  font-size: 0.625rem;
  font-weight: 700;
  color: var(--hub-teal-dark);
}

.mini-card-title {
  margin: 0 0 0.35rem;
  font-size: 0.8125rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--fn-ink);
}

.mini-card:hover .mini-card-title {
  color: var(--hub-teal-dark);
}

.mini-card-date {
  margin: 0;
  font-size: 0.6875rem;
  color: var(--fn-ink-faint);
}

.mini-card--soon .mini-card-thumb {
  background: linear-gradient(135deg, #e2e8f0, #cbd5e1);
}

.mini-card--soon .mini-card-title {
  color: var(--fn-ink-muted);
}

/* —— Series banner (サイボウズ式) —— */
.hub-series-banner {
  border-radius: var(--fn-radius);
  overflow: hidden;
  background: linear-gradient(120deg, #1e3a8a 0%, #0078c8 55%, #0d9488 100%);
}

.series-banner-inner {
  padding: 2rem 2.25rem;
  color: #fff;
}

.series-banner-label {
  margin: 0 0 0.5rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  opacity: 0.85;
}

.series-banner-title {
  margin: 0 0 0.625rem;
  font-family: var(--fn-sans);
  font-size: clamp(1.1875rem, 2.5vw, 1.5rem);
  font-weight: 700;
  line-height: 1.55;
  letter-spacing: 0.02em;
}

.series-banner-desc {
  margin: 0 0 1.25rem;
  max-width: 36rem;
  font-size: 0.875rem;
  line-height: 1.7;
  opacity: 0.92;
}

/* —— Resources (メルラボ gray section) —— */
.hub-resources {
  margin: 0;
  padding: 2rem 1.25rem;
  background: #f1f5f9;
  border-radius: 6px;
}

.hub-resources .section-head {
  max-width: none;
  margin-left: 0;
  margin-right: 0;
}

.resource-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 13.5rem), 1fr));
  gap: 1.25rem;
  max-width: none;
  margin: 0;
}

.resource-card {
  display: flex;
  flex-direction: column;
  padding: 1.25rem;
  background: var(--fn-bg-elevated);
  border-radius: 6px;
  box-shadow: 0 2px 8px rgb(10 22 40 / 6%);
}

.resource-thumb {
  aspect-ratio: 16 / 10;
  margin-bottom: 1rem;
  border-radius: 6px;
  overflow: hidden;
  background: #eef2f6;
}

.resource-thumb img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.resource-title {
  margin: 0 0 0.5rem;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--fn-ink);
}

.resource-desc {
  flex: 1;
  margin: 0 0 1rem;
  font-size: 0.8125rem;
  line-height: 1.65;
  color: var(--fn-ink-muted);
}

/* —— Filters + row list —— */
.article-filters {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.5rem;
}

.filter-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.375rem;
  justify-content: flex-end;
}

.filter-group-label {
  margin: 0;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--fn-ink-faint);
  width: 100%;
  text-align: right;
}

.filter-group-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  justify-content: flex-end;
}

.filter-btn--service {
  border-style: dashed;
}

.hub-service-index {
  margin: 2rem 0;
  padding: 1.25rem 0;
  border-top: 1px solid var(--fn-border-subtle);
}

.service-index-groups {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.service-index-group-head {
  margin: 0 0 0.65rem;
}

.service-index-group-title {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--fn-ink);
}

.service-index-group-desc {
  margin: 0.25rem 0 0;
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--fn-ink-secondary);
}

.sidebar-service-group {
  list-style: none;
  margin: 0.75rem 0 0;
  padding: 0;
}

.sidebar-service-group-title {
  margin: 0 0 0.35rem;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--fn-ink-faint);
}

.sidebar-service-group-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.sidebar-service-group-list li {
  margin: 0;
}

.service-index-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.service-index-nav a {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.75rem;
  border-radius: var(--fn-radius-pill);
  border: 1px solid var(--fn-border);
  background: var(--fn-bg-elevated);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--fn-ink-secondary);
  text-decoration: none;
}

.service-index-nav a:hover {
  border-color: var(--hub-cat-blue);
  color: var(--hub-cat-blue);
}

.service-index-count {
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--fn-ink-faint);
}

@media (max-width: 1024px) {
  .article-filters {
    align-items: stretch;
  }

  .filter-group-label,
  .filter-group-btns {
    text-align: left;
    justify-content: flex-start;
  }
}

.filter-btn {
  padding: 0.4rem 0.8rem;
  border-radius: var(--fn-radius-pill);
  border: 1px solid var(--fn-border);
  background: var(--fn-bg-elevated);
  font-family: var(--fn-sans);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--fn-ink-muted);
  transition: all 0.15s var(--fn-ease);
}

.filter-btn:hover {
  border-color: var(--fn-ink-faint);
  color: var(--fn-ink);
}

.filter-btn.is-active {
  background: var(--fn-ink);
  border-color: var(--fn-ink);
  color: #fff;
}

.article-row-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--fn-border-subtle);
  border-radius: 4px;
  background: var(--fn-bg-elevated);
  overflow: hidden;
}

.article-row-list > li + li {
  border-top: 1px solid var(--fn-border-subtle);
}

.article-row {
  display: grid;
  grid-template-columns: minmax(7rem, 9rem) minmax(0, 1fr) auto auto;
  gap: 1rem 1.25rem;
  align-items: center;
  padding: 1.125rem 1.25rem;
  text-decoration: none;
  color: inherit;
  transition: background 0.15s;
}

.article-row:hover {
  background: rgb(239 246 255 / 45%);
}

.article-row-topic {
  align-self: start;
  margin-top: 0.15rem;
}

.pill--row {
  font-size: 0.625rem;
  letter-spacing: 0.02em;
  text-transform: none;
}

.article-row-body {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  min-width: 0;
}

.article-row-title {
  font-family: var(--fn-sans);
  font-size: 0.9375rem;
  font-weight: 700;
  line-height: 1.6;
  letter-spacing: 0.01em;
  color: var(--fn-ink);
  transition: color 0.15s;
}

.article-row:hover .article-row-title {
  color: var(--fn-ink);
}

.article-row-desc {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--fn-ink-muted);
}

.article-row-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.2rem;
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--fn-ink-faint);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.article-row-arrow {
  font-size: 1rem;
  color: var(--fn-ink-faint);
  transition: transform 0.15s, color 0.15s;
}

.article-row:hover .article-row-arrow {
  color: var(--hub-teal-dark);
  transform: translateX(3px);
}

/* —— Sidebar —— */
.hub-sidebar {
  position: sticky;
  top: calc(var(--fn-header) + 3rem);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.sidebar-panel {
  padding: 1.125rem;
  background: var(--fn-bg-elevated);
  border: 1px solid var(--fn-border-subtle);
  border-radius: 6px;
  box-shadow: var(--fn-shadow-xs);
}

.sidebar-panel--cta {
  border-color: rgb(30 58 138 / 12%);
  background: linear-gradient(180deg, var(--fn-primary-soft) 0%, var(--fn-bg-elevated) 100%);
}

.sidebar-head {
  margin-bottom: 0.875rem;
}

.sidebar-panel h2,
.sidebar-panel .aside-panel-title,
.sidebar-head h2 {
  margin: 0 0 0.25rem;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--fn-ink);
}

.sidebar-note {
  margin: 0;
  font-size: 0.6875rem;
  color: var(--fn-ink-faint);
}

.sidebar-panel p,
.sidebar-panel li {
  font-size: 0.8125rem;
  line-height: 1.65;
  color: var(--fn-ink-muted);
}

.sidebar-panel .aside-cta-actions {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 1rem;
}

.sidebar-panel .aside-cta-actions .btn {
  width: 100%;
}

/* —— Tag cloud (サイボウズ式) —— */
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.tag-cloud a {
  display: inline-block;
  padding: 0.35rem 0.65rem;
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--hub-cat-blue);
  background: rgb(0 120 200 / 8%);
  border-radius: var(--fn-radius-pill);
  text-decoration: none;
}

.tag-cloud a:hover {
  background: rgb(0 120 200 / 15%);
}

.topic-links {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.topic-links a {
  display: block;
  padding: 0.5rem 0.625rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--fn-ink-secondary);
  text-decoration: none;
  border-radius: 6px;
  transition: background 0.15s, color 0.15s;
}

.topic-links a:hover {
  background: var(--fn-primary-soft);
  color: var(--fn-primary);
}

.topic-link-soon {
  display: block;
  padding: 0.5rem 0.625rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--fn-ink-faint);
  cursor: default;
}

.hub-footer-soon {
  font-size: 0.8125rem;
  color: rgb(255 255 255 / 45%);
  cursor: default;
}

/* —— Product banner (メルラボ) —— */
.hub-product-banner {
  padding: 2rem 0;
  background: var(--fn-bg-elevated);
  border-top: 1px solid var(--fn-border-subtle);
}

.hub-product-banner-inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 2rem;
  align-items: center;
  padding: 2rem 2.25rem;
  background: linear-gradient(135deg, #fff7ed 0%, #fff 60%);
  border: 1px solid rgb(234 88 12 / 15%);
  border-radius: var(--fn-radius);
}

.product-banner-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 10rem;
  padding: 1rem;
  border-radius: var(--fn-radius-sm);
  background: linear-gradient(145deg, var(--fn-primary-soft), #dbeafe);
  box-shadow: var(--fn-shadow-sm);
}

.product-banner-visual img {
  width: 100%;
  max-height: 12rem;
  object-fit: contain;
}

.product-banner-label {
  margin: 0 0 0.35rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--hub-cta);
}

.product-banner-copy h2 {
  margin: 0 0 0.5rem;
  font-family: var(--fn-sans);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.55;
  letter-spacing: 0.02em;
  color: var(--fn-ink);
}

.product-banner-copy p {
  margin: 0 0 1.25rem;
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--fn-ink-muted);
}

/* —— Join CTA (ferret membership band) —— */
.hub-join-cta {
  padding: 3rem 0;
  background: linear-gradient(135deg, var(--hub-teal) 0%, var(--hub-teal-dark) 100%);
  color: #fff;
}

.hub-join-cta-inner {
  text-align: center;
}

.join-cta-eyebrow {
  margin: 0 0 0.5rem;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  opacity: 0.85;
}

.hub-join-cta-inner h2 {
  margin: 0 0 0.75rem;
  font-family: var(--fn-sans);
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 700;
  line-height: 1.55;
  letter-spacing: 0.02em;
}

.join-cta-lead {
  margin: 0 auto 1.5rem;
  max-width: 32rem;
  font-size: 0.9375rem;
  line-height: 1.7;
  opacity: 0.92;
}

.join-cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
}

/* —— Footer (ferret dark) —— */
.hub-footer {
  background: var(--hub-footer);
  color: rgb(255 255 255 / 85%);
  padding-top: 2.5rem;
}

.hub-footer-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgb(255 255 255 / 10%);
}

.hub-footer-logo {
  margin: 0 0 0.35rem;
  font-family: var(--fn-sans);
  font-size: 1.125rem;
  font-weight: 600;
  color: #fff;
}

.hub-footer-tagline {
  margin: 0;
  font-size: 0.8125rem;
  opacity: 0.7;
}

.hub-footer-nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
}

.hub-footer-nav-title {
  margin: 0 0 0.75rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: rgb(255 255 255 / 55%);
}

.hub-footer-nav ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.hub-footer-nav a {
  display: block;
  padding: 0.25rem 0;
  font-size: 0.8125rem;
  color: rgb(255 255 255 / 78%);
  text-decoration: none;
}

.hub-footer-nav a:hover {
  color: #fff;
}

.hub-footer-bottom {
  padding: 1.25rem 0 1.75rem;
}

.hub-footer-bottom small {
  color: rgb(255 255 255 / 55%);
}

.hub-footer .site-footer-links {
  display: none;
}

.empty-state {
  padding: 2rem 1.5rem;
  text-align: center;
  font-size: 0.875rem;
  color: var(--fn-ink-muted);
}

/* —— Topic listing pages —— */
.topic-section {
  padding: 2.5rem 0 4rem;
}

.topic-section h1 {
  margin: 0 0 0.5rem;
  font-family: var(--fn-sans);
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--fn-ink);
}

.topic-section .lead {
  margin: 0 0 2rem;
  max-width: 36rem;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--fn-ink-muted);
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr));
  gap: 1.25rem;
}

.article-card {
  display: flex;
  flex-direction: column;
  background: var(--fn-bg-elevated);
  border: 1px solid var(--fn-border-subtle);
  border-radius: var(--fn-radius-sm);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  box-shadow: var(--fn-shadow-xs);
  transition: transform 0.2s var(--fn-ease), box-shadow 0.2s, border-color 0.2s;
}

.article-card:hover {
  transform: translateY(-2px);
  border-color: var(--fn-border);
  box-shadow: var(--fn-shadow-md);
}

.article-card-thumb {
  aspect-ratio: 16 / 10;
  background: linear-gradient(135deg, var(--fn-primary-soft), var(--fn-accent-soft));
  background-size: cover;
  background-position: center;
}

.article-card-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 1.125rem 1.25rem 1.375rem;
}

.article-card-tag {
  margin: 0 0 0.625rem;
}

.article-card-title {
  margin: 0 0 0.5rem;
  font-family: var(--fn-sans);
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.45;
  color: var(--fn-ink);
}

.article-card-desc {
  margin: 0;
  flex: 1;
  font-size: 0.8125rem;
  line-height: 1.65;
  color: var(--fn-ink-muted);
}

.article-card-meta {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--fn-ink-faint);
}

@media (max-width: 1024px) {
  .hero-tiles-grid {
    grid-template-columns: 1fr 1fr;
  }

  .hero-tile--large {
    grid-column: span 2;
  }

  .mini-card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .resource-grid {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 12rem), 1fr));
  }

  .hub-main-nav,
  .hub-header-search {
    display: none;
  }
}

@media (max-width: 960px) {
  .hub-layout {
    grid-template-columns: 1fr;
  }

  .hub-sidebar {
    position: static;
  }

  .pickup-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hub-product-banner-inner {
    grid-template-columns: 1fr;
  }

  .hub-footer-grid {
    grid-template-columns: 1fr;
  }

  .article-row {
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "topic topic"
      "body body"
      "meta arrow";
    gap: 0.5rem 0.75rem;
  }

  .article-row-topic {
    grid-area: topic;
  }

  .article-row-body {
    grid-area: body;
  }

  .article-row-meta {
    grid-area: meta;
    flex-direction: row;
    align-items: center;
    gap: 0.5rem;
  }

  .article-row-arrow {
    grid-area: arrow;
    align-self: center;
  }
}

@media (max-width: 640px) {
  .hero-tiles-grid {
    grid-template-columns: 1fr;
  }

  .hero-tile--large {
    grid-column: auto;
  }

  .pickup-grid {
    grid-template-columns: 1fr;
  }

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

  .hub-footer-nav {
    grid-template-columns: 1fr;
  }

  .join-cta-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .pickup-list-row {
    grid-template-columns: 5rem minmax(0, 1fr);
  }

  .pickup-list-meta {
    display: none;
  }
}