/* =============================================
   TurfBox Premium Blog Article Layout
   ============================================= */

.article-hero {
  position: relative;
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-soft) 55%, #0d3320 100%);
  padding: 140px 0 72px;
  color: #fff;
  overflow: hidden;
}
.article-hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -10%;
  width: 55%;
  height: 120%;
  background: radial-gradient(ellipse, rgba(22,163,74,.18) 0%, transparent 65%);
  pointer-events: none;
}
.article-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(22,163,74,.4), transparent);
}
.article-hero .container { position: relative; z-index: 1; }
.article-hero .breadcrumb { font-size: .78rem; color: rgba(255,255,255,.5); margin-bottom: 20px; }
.article-hero .breadcrumb a { color: #4ade80; font-weight: 500; }
.article-hero .breadcrumb a:hover { color: #86efac; }
.article-hero .breadcrumb span { color: rgba(255,255,255,.7); }
.article-hero h1 {
  font-size: clamp(1.75rem, 4.5vw, 2.65rem);
  font-weight: 800;
  letter-spacing: -.4px;
  line-height: 1.15;
  max-width: 780px;
  margin-bottom: 20px;
}
.article-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
  align-items: center;
  margin-bottom: 32px;
}
.article-hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .82rem;
  color: rgba(255,255,255,.6);
  font-weight: 500;
}
.article-hero-meta svg { flex-shrink: 0; opacity: .7; }
.article-hero-lead {
  font-size: 1.05rem;
  line-height: 1.7;
  color: rgba(255,255,255,.72);
  max-width: 680px;
  margin: 0;
}
.article-hero .section-badge {
  background: rgba(74,222,128,.15);
  color: #4ade80;
  margin-bottom: 16px;
}
.urgency-bar a {
  color: #4ade80;
  text-decoration: underline;
  margin-left: 6px;
}
.urgency-bar a:hover { color: #86efac; }
.footer-brand img { filter: brightness(10); }
.footer-social {
  margin-top: 16px;
  display: flex;
  gap: 18px;
  align-items: center;
}
.footer-social a {
  color: rgba(255,255,255,.55);
  transition: color 0.25s;
  display: inline-flex;
  align-items: center;
}
.footer-social a:hover { color: #4ade80; }

.stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 40px;
}
.stat-pill {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-lg);
  padding: 20px 22px;
  backdrop-filter: blur(8px);
  transition: border-color var(--transition), transform var(--transition);
}
.stat-pill:hover {
  border-color: rgba(74,222,128,.35);
  transform: translateY(-2px);
}
.stat-pill .stat-value {
  font-size: 1.5rem;
  font-weight: 800;
  color: #4ade80;
  line-height: 1.1;
  margin-bottom: 4px;
}
.stat-pill .stat-label {
  font-size: .78rem;
  color: rgba(255,255,255,.55);
  font-weight: 500;
  line-height: 1.4;
}

.article-body { padding: 56px 0 64px; background: #fff; }
.article-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 48px;
  align-items: start;
}
.article-sidebar { position: sticky; top: 100px; }
.toc-card {
  background: var(--gray-light);
  border: 1px solid var(--gray-border);
  border-radius: var(--radius-lg);
  padding: 22px 20px;
}
.toc-card h4 {
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .6px;
  color: var(--gray);
  margin-bottom: 14px;
  font-weight: 700;
}
.toc-list { list-style: none; margin: 0; padding: 0; }
.toc-list li { margin-bottom: 2px; }
.toc-list a {
  display: block;
  padding: 7px 10px;
  font-size: .82rem;
  font-weight: 500;
  color: var(--dark-soft);
  border-radius: 8px;
  border-left: 2px solid transparent;
  transition: all var(--transition);
  text-decoration: none;
}
.toc-list a:hover,
.toc-list a.active {
  color: var(--green);
  background: var(--green-light);
  border-left-color: var(--green);
}
.sidebar-cta {
  margin-top: 16px;
  background: linear-gradient(135deg, var(--green) 0%, var(--green-dark) 100%);
  border-radius: var(--radius-lg);
  padding: 20px;
  color: #fff;
  text-align: center;
}
.sidebar-cta p {
  font-size: .8rem;
  line-height: 1.5;
  margin-bottom: 14px;
  color: rgba(255,255,255,.85);
  font-weight: 500;
}
.sidebar-cta .btn {
  width: 100%;
  justify-content: center;
  background: #fff;
  color: var(--green-dark) !important;
  font-size: .78rem;
  padding: 10px 16px;
}
.sidebar-cta .btn:hover {
  background: var(--gray-light);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0,0,0,.15);
}

.article-main { min-width: 0; }
.article-main .lead-text {
  font-size: 1.02rem;
  line-height: 1.85;
  color: var(--dark-soft);
  margin-bottom: 20px;
}
.section-heading {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 44px;
  margin-bottom: 16px;
}
.section-heading h2 { margin: 0; }
.section-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--green-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--green-dark);
}
.article-main p {
  color: var(--dark-soft);
  font-size: .94rem;
  line-height: 1.85;
  margin-bottom: 16px;
}
.article-main h3 {
  font-size: 1rem;
  color: var(--dark);
  margin-top: 28px;
  margin-bottom: 10px;
  font-weight: 700;
}
.article-main ul,
.article-main ol {
  margin: 0 0 20px 0;
  padding: 0;
  list-style: none;
}
.article-main ul li,
.article-main ol li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 12px;
  color: var(--dark-soft);
  font-size: .94rem;
  line-height: 1.75;
}
.article-main ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
}
.article-main ol { counter-reset: ol-counter; }
.article-main ol li { counter-increment: ol-counter; }
.article-main ol li::before {
  content: counter(ol-counter);
  position: absolute;
  left: 0;
  top: 2px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--green-light);
  color: var(--green-dark);
  font-size: .72rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.article-main a { color: var(--green); font-weight: 600; }
.article-main a:hover { color: var(--green-dark); text-decoration: underline; }
.article-main a.btn,
.premium-cta a.btn,
.sidebar-cta a.btn {
  color: #fff !important;
  text-decoration: none !important;
}
.article-main a.btn:hover,
.premium-cta a.btn:hover {
  color: #fff !important;
  text-decoration: none !important;
}
.sidebar-cta a.btn { color: var(--green-dark) !important; }

.premium-cta {
  position: relative;
  background: linear-gradient(135deg, var(--green-light) 0%, #ecfdf5 100%);
  border: 1px solid rgba(22,163,74,.2);
  border-radius: var(--radius-xl);
  padding: 32px 36px;
  margin: 40px 0;
  display: flex;
  align-items: center;
  gap: 28px;
  overflow: visible;
}
.premium-cta::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -5%;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(22,163,74,.12) 0%, transparent 70%);
  pointer-events: none;
}
.premium-cta-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--green);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: var(--shadow-green);
}
.premium-cta-body { flex: 1; min-width: 0; position: relative; z-index: 1; }
.premium-cta-body h3 {
  font-size: 1.1rem;
  color: var(--dark);
  margin-bottom: 6px;
  margin-top: 0;
}
.premium-cta-body p {
  font-size: .9rem;
  color: var(--dark-soft);
  margin-bottom: 0;
  font-weight: 500;
}
.premium-cta-action {
  flex-shrink: 1;
  min-width: 0;
  max-width: 240px;
  position: relative;
  z-index: 1;
}
.premium-cta .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: normal;
  text-align: center;
  line-height: 1.35;
  padding: 13px 22px;
  max-width: 100%;
  box-sizing: border-box;
}
@media (min-width: 1025px) {
  .premium-cta .btn { white-space: nowrap; }
}

.dim-table-wrap {
  border: 1px solid var(--gray-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: 24px 0 32px;
  box-shadow: var(--shadow-sm);
}
.dim-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .88rem;
}
.dim-table thead { background: var(--dark); }
.dim-table th {
  padding: 14px 18px;
  text-align: left;
  font-weight: 700;
  color: #fff;
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .4px;
}
.dim-table td {
  padding: 16px 18px;
  border-bottom: 1px solid var(--gray-border);
  color: var(--dark-soft);
  vertical-align: top;
  line-height: 1.55;
}
.dim-table tbody tr:last-child td { border-bottom: none; }
.dim-table tbody tr:nth-child(even) { background: var(--gray-light); }
.dim-table tbody tr:hover { background: var(--green-light); }
.dim-table .size-tag,
.dim-table .row-label {
  display: inline-block;
  font-weight: 700;
  color: var(--dark);
  font-size: .88rem;
}
.dim-table .size-badge {
  display: inline-block;
  margin-top: 4px;
  font-size: .68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .4px;
  padding: 2px 8px;
  border-radius: 50px;
  background: var(--green-light);
  color: var(--green-dark);
}
.dim-table .dim-val,
.dim-table .cost-val { font-weight: 700; color: var(--dark); white-space: nowrap; }
.dim-table .area-val { font-weight: 700; color: var(--green); }

.dim-cards { display: none; gap: 16px; margin: 24px 0 32px; }
.dim-card {
  background: #fff;
  border: 1px solid var(--gray-border);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), border-color var(--transition);
}
.dim-card:hover {
  box-shadow: var(--shadow);
  border-color: rgba(22,163,74,.25);
}
.dim-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
}
.dim-card-header h4 {
  font-size: .95rem;
  color: var(--dark);
  margin: 0;
  line-height: 1.3;
}
.dim-card-badge {
  font-size: .65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .4px;
  padding: 3px 10px;
  border-radius: 50px;
  background: var(--green-light);
  color: var(--green-dark);
  white-space: nowrap;
  flex-shrink: 0;
}
.dim-card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 12px;
}
.dim-card-stat {
  background: var(--gray-light);
  border-radius: 10px;
  padding: 10px 12px;
}
.dim-card-stat .label {
  font-size: .68rem;
  text-transform: uppercase;
  letter-spacing: .3px;
  color: var(--gray);
  font-weight: 600;
  margin-bottom: 2px;
}
.dim-card-stat .value {
  font-size: .88rem;
  font-weight: 700;
  color: var(--dark);
}
.dim-card-stat .value.green { color: var(--green); }
.dim-card-desc {
  font-size: .84rem;
  color: var(--gray);
  line-height: 1.55;
  margin: 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin: 24px 0 32px;
}
.feature-card {
  background: var(--gray-light);
  border: 1px solid var(--gray-border);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  transition: all var(--transition);
}
.feature-card:hover {
  border-color: rgba(22,163,74,.3);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
.feature-card-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid var(--gray-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  color: var(--green);
}
.feature-card h4 {
  font-size: .92rem;
  color: var(--dark);
  margin-bottom: 8px;
  line-height: 1.3;
}
.feature-card p {
  font-size: .84rem;
  color: var(--gray);
  line-height: 1.65;
  margin: 0;
}

.info-callout,
.revenue-callout {
  display: flex;
  gap: 16px;
  border-radius: var(--radius-lg);
  padding: 20px 22px;
  margin: 24px 0;
}
.info-callout {
  background: #fffbeb;
  border: 1px solid #fde68a;
}
.revenue-callout {
  background: linear-gradient(135deg, #f8fafc 0%, #ecfdf5 100%);
  border: 1px solid rgba(22,163,74,.2);
  border-left: 4px solid var(--green);
}
.info-callout-icon { flex-shrink: 0; color: #d97706; margin-top: 2px; }
.revenue-callout-icon { flex-shrink: 0; color: var(--green); margin-top: 2px; }
.info-callout p { font-size: .9rem; color: #92400e; margin: 0; line-height: 1.65; font-weight: 500; }
.revenue-callout p { font-size: .9rem; color: var(--dark-soft); margin: 0 0 6px; line-height: 1.65; font-weight: 500; }
.revenue-callout p:last-child { margin-bottom: 0; }

.related-section {
  padding: 56px 0;
  background: var(--gray-light);
  border-top: 1px solid var(--gray-border);
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 32px;
}
.related-card {
  background: #fff;
  border: 1px solid var(--gray-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  text-decoration: none;
  color: inherit;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}
.related-card:hover {
  border-color: rgba(22,163,74,.3);
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}
.related-card .tag {
  font-size: .68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .4px;
  color: var(--green-dark);
  background: var(--green-light);
  padding: 3px 10px;
  border-radius: 50px;
  align-self: flex-start;
  margin-bottom: 12px;
}
.related-card h3 {
  font-size: .95rem;
  color: var(--dark);
  margin-bottom: 8px;
  line-height: 1.35;
}
.related-card p {
  font-size: .82rem;
  color: var(--gray);
  line-height: 1.55;
  margin: 0;
  flex: 1;
}
.related-card .read-more {
  margin-top: 14px;
  font-size: .82rem;
  font-weight: 600;
  color: var(--green);
}

.mobile-toc-toggle {
  display: none;
  width: 100%;
  padding: 14px 18px;
  background: var(--gray-light);
  border: 1px solid var(--gray-border);
  border-radius: var(--radius);
  font-size: .88rem;
  font-weight: 600;
  color: var(--dark);
  cursor: pointer;
  margin-bottom: 24px;
  text-align: left;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.mobile-toc-toggle svg { transition: transform .3s; }
.mobile-toc-toggle.open svg { transform: rotate(180deg); }
.mobile-toc-panel {
  display: none;
  background: var(--gray-light);
  border: 1px solid var(--gray-border);
  border-radius: var(--radius-lg);
  padding: 16px;
  margin-bottom: 28px;
}
.mobile-toc-panel.open { display: block; }

@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { display: none; }
  .mobile-toc-toggle { display: flex; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .related-grid { grid-template-columns: 1fr 1fr; }
  .premium-cta {
    flex-direction: column;
    text-align: center;
    padding: 28px 24px;
    gap: 20px;
  }
  .premium-cta-action {
    width: 100%;
    max-width: none;
  }
  .premium-cta .btn {
    width: 100%;
    white-space: normal;
    padding: 14px 24px;
  }
}
@media (max-width: 768px) {
  .article-hero { padding: 120px 0 48px; }
  .feature-grid { grid-template-columns: 1fr; }
  .stat-row { grid-template-columns: 1fr; gap: 12px; }
  .stat-pill { padding: 16px 18px; }
  .stat-pill .stat-value { font-size: 1.3rem; }
  .premium-cta-action .btn {
    width: 100%;
    justify-content: center;
    font-size: .85rem;
  }
  .dim-table-wrap.has-mobile-cards { display: none; }
  .dim-table-wrap:not(.has-mobile-cards) {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .dim-cards.show-mobile { display: grid; }
  .related-grid { grid-template-columns: 1fr; }
  .article-body { padding: 40px 0 48px; }
}
@media (max-width: 480px) {
  .dim-card-grid { grid-template-columns: 1fr; }
  .article-hero-lead { font-size: .95rem; }
}

/* ── Interactive calculators ── */
.calc-container {
  background: #fff;
  border: 1px solid var(--gray-border);
  border-radius: var(--radius-lg);
  padding: 30px;
  margin: 40px 0;
  box-shadow: var(--shadow);
}
.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}
.calc-inputs { display: flex; flex-direction: column; gap: 20px; }
.calc-group { display: flex; flex-direction: column; gap: 8px; }
.calc-label-row { display: flex; justify-content: space-between; align-items: center; }
.calc-label { font-weight: 600; font-size: .9rem; color: var(--dark-soft); }
.calc-value { font-weight: 700; font-size: 1rem; color: var(--green); }
.calc-input-slider {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: #e2e8f0;
  outline: none;
}
.calc-input-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--green);
  cursor: pointer;
  transition: transform .1s;
}
.calc-input-slider::-webkit-slider-thumb:hover { transform: scale(1.2); }
.calc-results {
  background: var(--gray-light);
  border: 1px solid var(--gray-border);
  border-radius: var(--radius);
  padding: 25px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 20px;
}
.result-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--gray-border);
}
.result-item:last-child { border-bottom: none; padding-bottom: 0; }
.result-label { font-weight: 500; font-size: .9rem; color: var(--gray); }
.result-value { font-weight: 800; font-size: 1.2rem; color: var(--dark); }
.result-value.highlight-green,
.result-value.profit { color: var(--green); font-size: 1.4rem; }

/* ── Blog index listing page ── */
.blog-index-hero {
  padding: 140px 0 72px;
  text-align: center;
}
.blog-index-hero h1 {
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}
.blog-index-hero .article-hero-lead {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}
.blog-index-section { padding: 56px 0 64px; background: #fff; }
.blog-index-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}
.blog-index-card {
  background: #fff;
  border: 1px solid var(--gray-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  height: 100%;
  position: relative;
  box-shadow: var(--shadow-sm);
}
.blog-index-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: rgba(22,163,74,.3);
}
.blog-index-card .card-tag {
  font-size: .68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .4px;
  color: var(--green-dark);
  background: var(--green-light);
  padding: 3px 10px;
  border-radius: 50px;
  align-self: flex-start;
  margin-bottom: 12px;
}
.blog-index-card h2 {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 12px;
  color: var(--dark);
  transition: color var(--transition);
}
.blog-index-card:hover h2 { color: var(--green); }
.blog-index-card p {
  color: var(--gray);
  font-size: .88rem;
  line-height: 1.65;
  margin-bottom: 20px;
  flex: 1;
}
.blog-index-card .card-link {
  color: var(--green);
  font-weight: 700;
  font-size: .88rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.blog-index-card .card-link::after {
  content: '';
  position: absolute;
  inset: 0;
}
.blog-index-card .card-link span { transition: transform var(--transition); }
.blog-index-card:hover .card-link span { transform: translateX(3px); }

@media (max-width: 768px) {
  .calc-grid { grid-template-columns: 1fr; }
  .calc-container { padding: 20px; }
  .blog-index-hero { padding: 120px 0 48px; }
  .blog-index-section { padding: 40px 0 48px; }
  .blog-index-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .calc-container, .calc-results { padding: 15px; }
  .result-item { flex-direction: column; align-items: flex-start; gap: 5px; }
  .result-value { font-size: 1.1rem; }
  .result-value.profit, .result-value.highlight-green { font-size: 1.25rem; }
}