/* ============================================
   AREA CONVERTER — page-specific styles
   Inherits all variables from css/styles.css
   ============================================ */

/* ---- Page wrapper ---- */
.calc-page {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  margin: 0 auto;
  padding: 48px 24px 80px;
  display: grid;
  grid-template-columns: 1fr 420px;
  grid-template-rows: auto auto;
  gap: 48px;
  align-items: start;
}

/* ---- Left column ---- */
.calc-page-info {
  position: static;
}

/* Breadcrumb */
.calc-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.calc-breadcrumb a { color: var(--text-dim); transition: color var(--transition); }
.calc-breadcrumb a:hover { color: var(--accent); }
.calc-breadcrumb i { font-size: 10px; }

/* Category tag — orange/amber for Converters */
.calc-page-tag {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 4px 12px 4px 8px;
  background: rgba(245,158,11,0.12);
  border: 1px solid rgba(245,158,11,0.22);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  color: #d97706;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 18px;
}
body.light-theme .calc-page-tag {
  background: rgba(217,119,6,0.1);
  border-color: rgba(217,119,6,0.2);
  color: #b45309;
}
.calc-page-tag i { font-size: 13px; }

/* Page title */
.calc-page-title {
  font-family: 'Bricolage Grotesque', sans-serif;
  font-size: clamp(30px, 3.5vw, 48px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -1.5px;
  color: var(--text);
  margin-bottom: 16px;
}
.calc-page-title span { color: #f59e0b; }
body.light-theme .calc-page-title span { color: #d97706; }

/* Description */
.calc-page-desc {
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-muted);
  margin-bottom: 32px;
}

/* Feature pills */
.calc-features {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 40px;
}
.calc-feature-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
}
.calc-feature-pill i { color: var(--accent); font-size: 12px; }

/* Content sections */
.calc-page-content {
  margin-top: 0;
  min-width: 0;
}

.calc-page-content.fade-up {
  opacity: 1;
  transform: none;
  animation: none;
  transition: none;
  visibility: visible;
}
.content-block { margin-bottom: 40px; }
.content-block h2 {
  font-family: 'Bricolage Grotesque', sans-serif;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--text);
  margin-bottom: 14px;
}
.content-block h3 {
  font-family: 'Bricolage Grotesque', sans-serif;
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
  margin-top: 20px;
}
.content-block p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-muted);
  margin-bottom: 10px;
}
.content-block strong { color: var(--text); font-weight: 600; }

/* ============================================
   REFERENCE TABLE
   ============================================ */
.units-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  margin: 16px 0;
}
.units-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.units-table thead tr { background: var(--bg-3); }
body.light-theme .units-table thead tr { background: var(--surface-2); }
.units-table th {
  padding: 10px 14px;
  text-align: left;
  font-family: 'Bricolage Grotesque', sans-serif;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.units-table td {
  padding: 10px 14px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  line-height: 1.5;
}
.units-table tbody tr:last-child td { border-bottom: none; }
.units-table tbody tr:nth-child(even) { background: var(--bg-2); }
body.light-theme .units-table tbody tr:nth-child(even) { background: var(--surface-2); }
.units-table td:first-child { font-weight: 600; color: var(--text); }
.units-table td:nth-child(2) {
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  color: #f59e0b;
}
body.light-theme .units-table td:nth-child(2) { color: #d97706; }

/* ============================================
   COMMON CONVERSIONS GRID
   ============================================ */
.conversion-pairs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 16px 0;
}
.conv-pair-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: border-color var(--transition);
}
.conv-pair-card:hover { border-color: #f59e0b; }
.conv-pair-title {
  font-family: 'DM Mono', monospace;
  font-size: 13px;
  font-weight: 600;
  color: #f59e0b;
}
body.light-theme .conv-pair-title { color: #d97706; }
.conv-pair-body {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.conv-pair-body span {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}
.conv-pair-body strong { color: var(--text); font-weight: 700; }
.conv-pair-use {
  font-size: 11px;
  color: var(--text-dim);
  font-style: italic;
  border-top: 1px solid var(--border);
  padding-top: 6px;
  margin-top: 2px;
}

/* ============================================
   HOW-TO STEPS
   ============================================ */
.steps-list {
  list-style: none;
  counter-reset: steps;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 16px 0;
}
.steps-list li {
  counter-increment: steps;
  display: flex;
  gap: 14px;
  align-items: flex-start;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-muted);
}
.steps-list li::before {
  content: counter(steps);
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(245,158,11,0.12);
  border: 1px solid rgba(245,158,11,0.25);
  color: #f59e0b;
  font-family: 'Bricolage Grotesque', sans-serif;
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}
body.light-theme .steps-list li::before {
  background: rgba(217,119,6,0.1);
  border-color: rgba(217,119,6,0.2);
  color: #d97706;
}
.steps-list li strong { color: var(--text); }

/* ============================================
   USE-CASES GRID
   ============================================ */
.use-cases-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 20px 0;
}
.use-case-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition);
}
.use-case-card:hover { border-color: var(--border-hover); }
.use-case-icon {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: rgba(245,158,11,0.12);
  border: 1px solid rgba(245,158,11,0.18);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  color: #f59e0b;
  margin-top: 1px;
}
body.light-theme .use-case-icon {
  background: rgba(217,119,6,0.1);
  border-color: rgba(217,119,6,0.18);
  color: #d97706;
}
.use-case-text { display: flex; flex-direction: column; gap: 4px; }
.use-case-text strong { font-size: 14px; font-weight: 700; color: var(--text); }
.use-case-text span { font-size: 13px; line-height: 1.6; color: var(--text-muted); }

/* ============================================
   FAQ
   ============================================ */
.faq-list { display: flex; flex-direction: column; gap: 8px; }
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color var(--transition);
}
.faq-item:hover { border-color: var(--border-hover); }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  background: transparent;
  border: none;
  cursor: pointer;
  font-family: 'DM Sans', sans-serif;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  transition: color var(--transition);
}
.faq-question:hover { color: var(--accent); }
.faq-question i {
  font-size: 12px;
  color: var(--text-dim);
  transition: transform var(--transition), color var(--transition);
  flex-shrink: 0;
}
.faq-item.open .faq-question i {
  transform: rotate(180deg);
  color: var(--accent);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-muted);
  padding: 0 18px;
}
.faq-item.open .faq-answer {
  max-height: 500px;
  padding: 0 18px 16px;
}

/* ============================================
   PEOPLE ALSO SEARCH — chips
   ============================================ */
.also-search-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}
.also-search-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  transition: background var(--transition), border-color var(--transition), color var(--transition);
  white-space: nowrap;
}
.also-search-chip:hover {
  background: rgba(245,158,11,0.1);
  border-color: #f59e0b;
  color: #f59e0b;
}
body.light-theme .also-search-chip:hover {
  background: rgba(217,119,6,0.1);
  border-color: #d97706;
  color: #d97706;
}
.also-search-chip i { font-size: 12px; }

/* ============================================
   RIGHT COLUMN: CONVERTER CARD
   ============================================ */
.calc-panel {
  position: sticky;
  top: calc(var(--header-h) + 24px);
}
.calc-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg), 0 0 60px rgba(245,158,11,0.06);
}

/* Card header: hidden desktop, shown mobile */
.calc-card-header {
  padding: 20px 24px 18px;
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
  display: none;
  align-items: center;
  gap: 12px;
}
@media (max-width: 1024px) {
  .calc-card-header { display: flex; }
}
.calc-card-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(245,158,11,0.12);
  border: 1px solid rgba(245,158,11,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: #f59e0b;
  flex-shrink: 0;
}
.calc-card-header-text h3 {
  font-family: 'Bricolage Grotesque', sans-serif;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 2px;
}
.calc-card-header-text p { font-size: 12px; color: var(--text-dim); }
.calc-card-body { padding: 24px; }

/* ---- Form elements ---- */
.form-group { margin-bottom: 18px; }
.form-label {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.form-label i { color: #f59e0b; font-size: 12px; }
body.light-theme .form-label i { color: #d97706; }

.form-input {
  width: 100%;
  padding: 11px 14px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  font-size: 15px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
  appearance: none;
  -webkit-appearance: none;
}
.form-input:hover { border-color: var(--border-hover); }
.form-input:focus {
  border-color: #f59e0b;
  box-shadow: 0 0 0 3px rgba(245,158,11,0.15);
  background: var(--surface);
}
body.light-theme .form-input:focus {
  border-color: #d97706;
  box-shadow: 0 0 0 3px rgba(217,119,6,0.12);
}
.form-input.error {
  border-color: var(--pink) !important;
  box-shadow: 0 0 0 3px var(--pink-dim) !important;
}
/* Select arrow */
.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23888' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 38px;
  cursor: pointer;
}

/* ============================================
   SWAP ROW
   ============================================ */
.swap-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 6px 0 18px;
}
.swap-line {
  flex: 1;
  height: 1px;
  background: var(--border);
}
.swap-btn {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-2);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--text-muted);
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), color var(--transition), transform 0.25s ease;
}
.swap-btn:hover {
  background: rgba(245,158,11,0.12);
  border-color: #f59e0b;
  color: #f59e0b;
  transform: rotate(180deg);
}

/* ============================================
   ERROR TOAST
   ============================================ */
.calc-error {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--pink-dim);
  border: 1px solid rgba(251,113,133,0.3);
  border-radius: var(--radius-sm);
  color: var(--pink);
  font-size: 14px;
  font-weight: 500;
  margin-top: 4px;
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: none;
}
.calc-error.show {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

/* ============================================
   RESULT CARD
   ============================================ */
.result-card {
  margin-top: 20px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: none;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.result-card.show {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

/* Result hero */
.result-hero {
  padding: 20px 24px;
  background: linear-gradient(135deg, rgba(245,158,11,0.1) 0%, transparent 60%);
  border-bottom: 1px solid var(--border);
  text-align: center;
}
body.light-theme .result-hero {
  background: linear-gradient(135deg, rgba(217,119,6,0.08) 0%, transparent 60%);
}
.result-age-main {
  font-family: 'Bricolage Grotesque', sans-serif;
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -1.2px;
  color: var(--text);
  line-height: 1.1;
  margin-bottom: 4px;
  word-break: break-all;
}
.result-age-sub {
  font-size: 13px;
  color: var(--text-dim);
  font-weight: 500;
}

/* Formula row */
.result-formula-row {
  padding: 12px 18px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
}
.result-formula-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  white-space: nowrap;
  flex-shrink: 0;
}
.result-formula-value {
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  color: #f59e0b;
  line-height: 1.4;
  word-break: break-all;
}
body.light-theme .result-formula-value { color: #d97706; }

/* Show all units toggle */
.result-all-toggle {
  border-bottom: 1px solid var(--border);
}
.all-units-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  background: transparent;
  border: none;
  cursor: pointer;
  font-family: 'DM Sans', sans-serif;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  transition: color var(--transition), background var(--transition);
}
.all-units-btn:hover {
  background: var(--bg-3);
  color: #f59e0b;
}
.all-units-btn i { font-size: 12px; }
#allUnitsCaret { transition: transform 0.3s ease; }
.all-units-btn.open #allUnitsCaret { transform: rotate(180deg); }

/* All-units conversion table */
.all-units-table {
  background: var(--surface);
}
.all-units-table.hidden { display: none; }
.all-unit-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 18px;
  border-bottom: 1px solid var(--border);
  gap: 12px;
}
.all-unit-row:last-child { border-bottom: none; }
.all-unit-row.is-active {
  background: rgba(245,158,11,0.06);
}
.all-unit-label {
  font-size: 13px;
  color: var(--text-muted);
  flex: 1;
}
.all-unit-symbol {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  color: var(--text-dim);
  width: 44px;
  text-align: right;
  flex-shrink: 0;
}
.all-unit-value {
  font-family: 'Bricolage Grotesque', sans-serif;
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  text-align: right;
  min-width: 90px;
  flex-shrink: 0;
}
.all-unit-row.is-active .all-unit-value { color: #f59e0b; }
body.light-theme .all-unit-row.is-active .all-unit-value { color: #d97706; }

/* ============================================
   TOPIC CLUSTER
   ============================================ */
.topic-cluster-section {
  position: relative;
  z-index: 1;
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.topic-cluster-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 56px 24px;
}
.topic-cluster-header { max-width: 680px; margin-bottom: 40px; }
.topic-cluster-tag {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 4px 12px 4px 8px;
  background: var(--purple-dim);
  border: 1px solid rgba(167,139,250,0.22);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  color: var(--purple);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}
.topic-cluster-header h2 {
  font-family: 'Bricolage Grotesque', sans-serif;
  font-size: clamp(22px, 2.5vw, 30px);
  font-weight: 800;
  letter-spacing: -0.8px;
  color: var(--text);
  margin-bottom: 12px;
}
.topic-cluster-header p { font-size: 15px; line-height: 1.75; color: var(--text-muted); }

.cluster-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 24px;
  margin-bottom: 40px;
  align-items: start;
}
.cluster-primary {
  background: var(--surface);
  border: 2px solid #f59e0b;
  border-radius: var(--radius);
  padding: 22px;
  position: relative;
}
body.light-theme .cluster-primary { border-color: #d97706; }
.cluster-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(245,158,11,0.07) 0%, transparent 60%);
  pointer-events: none;
}
.cluster-primary-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #f59e0b;
  margin-bottom: 10px;
}
body.light-theme .cluster-primary-label { color: #d97706; }
.cluster-primary h3 {
  font-family: 'Bricolage Grotesque', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
  position: relative;
}
.cluster-primary p {
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-muted);
  margin-bottom: 14px;
  position: relative;
}
.cluster-keywords { display: flex; flex-wrap: wrap; gap: 6px; position: relative; }
.cluster-keywords span {
  padding: 3px 9px;
  background: rgba(245,158,11,0.1);
  border: 1px solid rgba(245,158,11,0.2);
  border-radius: 100px;
  font-size: 11px;
  font-weight: 600;
  color: #f59e0b;
}
body.light-theme .cluster-keywords span {
  background: rgba(217,119,6,0.1);
  border-color: rgba(217,119,6,0.2);
  color: #d97706;
}
.cluster-links {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.cluster-links h3 {
  font-family: 'Bricolage Grotesque', sans-serif;
  font-size: 14px;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-3);
}
.cluster-link-list { display: flex; flex-direction: column; }
.cluster-link-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}
.cluster-link-item:last-child { border-bottom: none; }
.cluster-link-item:hover { background: var(--surface-2); }
.cluster-link-icon {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: rgba(245,158,11,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  color: #f59e0b;
}
body.light-theme .cluster-link-icon { background: rgba(217,119,6,0.1); color: #d97706; }
.cluster-link-text { flex: 1; display: flex; flex-direction: column; gap: 2px; }
.cluster-link-text strong { font-size: 14px; font-weight: 600; color: var(--text); }
.cluster-link-text span { font-size: 12px; color: var(--text-dim); line-height: 1.4; }
.cluster-link-arrow {
  color: var(--text-dim);
  font-size: 12px;
  transition: transform var(--transition), color var(--transition);
}
.cluster-link-item:hover .cluster-link-arrow {
  transform: translateX(3px);
  color: #f59e0b;
}
body.light-theme .cluster-link-item:hover .cluster-link-arrow { color: #d97706; }
.cluster-link-all { background: var(--bg-2); }
.cluster-link-all .cluster-link-icon {
  background: var(--purple-dim);
  color: var(--purple);
}
.cluster-crosslinks { padding-top: 32px; border-top: 1px solid var(--border); }
.cluster-crosslinks h3 {
  font-family: 'Bricolage Grotesque', sans-serif;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.3px;
  color: var(--text);
  margin-bottom: 6px;
}
.cluster-crosslinks > p { font-size: 14px; color: var(--text-muted); margin-bottom: 20px; }
.crosslink-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.crosslink-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.crosslink-card:hover {
  border-color: #f59e0b;
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}
.crosslink-card i { font-size: 20px; color: #f59e0b; }
body.light-theme .crosslink-card i { color: #d97706; }
.crosslink-card strong {
  font-family: 'Bricolage Grotesque', sans-serif;
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
}
.crosslink-card span { font-size: 12px; line-height: 1.5; color: var(--text-dim); }

/* ============================================
   AD SLOT
   ============================================ */
.ad-slot {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px 40px;
}
.ad-slot > div {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}


/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .calc-page {
    grid-template-columns: 1fr;
    padding: 32px 20px 60px;
    gap: 32px;
  }
  .calc-page-info { position: static; }
  .calc-panel {
    position: static;
    order: 2;
  }

  .calc-page-content {
    order: 3;
  }
  .cluster-grid { grid-template-columns: 1fr; }
  .crosslink-grid { grid-template-columns: 1fr 1fr; }
  .use-cases-grid { grid-template-columns: 1fr; }
  .conversion-pairs-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .calc-page { padding: 24px 16px 48px; gap: 24px; }
  .conversion-pairs-grid { grid-template-columns: 1fr; }
  .use-cases-grid { grid-template-columns: 1fr; }
  .crosslink-grid { grid-template-columns: 1fr; }
  .calc-features { gap: 6px; }
  .topic-cluster-inner { padding: 36px 16px; }
  .cluster-grid { gap: 16px; }
  .also-search-grid { gap: 7px; }
  .result-age-main { font-size: 24px; }
}

@media (min-width: 1025px) {
  .calc-page-info {
    grid-row: 1 / 2;
    grid-column: 1 / 2;
  }
  .calc-page-content {
    grid-row: 2 / 3;
    grid-column: 1 / 2;
  }
  .calc-panel {
    grid-row: 1 / 3;
    grid-column: 2 / 3;
    align-self: start;
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}