:root {
  --calc-blue: #273c8e;
  --calc-blue-soft: #eef3fd;
  --calc-green: #10b981;
  --calc-green-dark: #0f6238;
  --calc-ink: #0f172a;
  --calc-muted: #64748b;
  --calc-line: #e2e8f0;
}

.calc-hub,
.calc-page {
  background: #f8fafc;
  overflow-x: clip;
  padding: 18px 0 40px;
}

.calc-hub .container,
.calc-page .container {
  max-width: 1140px;
  overflow-x: clip;
}

.calc-crumb {
  font-size: 12px;
  color: var(--calc-muted);
  margin-bottom: 10px;
}
.calc-crumb a { color: var(--calc-blue); }

.calc-hub-head h1,
.calc-page-head h1 {
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  font-weight: 700;
  color: var(--calc-ink);
  margin: 0 0 4px;
  line-height: 1.25;
}
.calc-hub-head p,
.calc-page-head p {
  font-size: 13px;
  color: var(--calc-muted);
  margin: 0 0 12px;
}

.calc-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 0 0 14px;
}
.calc-tab {
  border: 1px solid var(--calc-line);
  background: #fff;
  color: var(--calc-ink);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}
.calc-tab:hover { color: var(--calc-blue); border-color: var(--calc-blue); }
.calc-tab.is-active {
  background: var(--calc-blue);
  border-color: var(--calc-blue);
  color: #fff;
}

.calc-hub-grid-wrap [hidden] { display: none !important; }
.calc-hub-card {
  background: #fff;
  border: 1px solid var(--calc-line);
  border-radius: 12px;
  padding: 12px;
  height: 100%;
  text-decoration: none;
  color: inherit;
  display: flex;
  gap: 10px;
  align-items: flex-start;
  min-width: 0;
}
.calc-hub-card:hover { border-color: var(--calc-blue); color: inherit; }
.calc-hub-icon {
  width: 36px; height: 36px; border-radius: 9px; flex: 0 0 36px;
  background: var(--calc-blue-soft); color: var(--calc-blue);
  display: flex; align-items: center; justify-content: center; font-size: 14px;
}
.calc-hub-card h3 {
  font-size: 13px; font-weight: 700; margin: 0 0 2px; line-height: 1.3;
  overflow-wrap: anywhere;
}
.calc-hub-card p { font-size: 12px; color: var(--calc-muted); margin: 0; }
@media (max-width: 767px) {
  .calc-hub-card p { display: none; }
  .calc-hub-card { align-items: center; padding: 10px; }
}

.calc-workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  border: 1px solid var(--calc-line);
  border-radius: 14px;
  overflow: hidden;
  background: #fff;
  align-items: stretch;
}
.calc-inputs {
  padding: 14px 16px;
  min-width: 0;
}
.calc-inputs .form-group { margin-bottom: 10px !important; }
.calc-inputs .form-group:last-child { margin-bottom: 0 !important; }
.calc-inputs label { font-size: 12.5px; }
.calc-result {
  background: var(--calc-blue-soft);
  border-left: 1px solid #d7e2f6;
  display: flex;
  flex-direction: column;
  padding: 14px 16px;
  min-width: 0;
}
.calc-result-kicker {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: var(--calc-blue);
  margin: 0 0 2px;
}
.calc-result-value {
  font-size: clamp(1.35rem, 2vw, 1.85rem);
  font-weight: 800;
  color: var(--calc-blue);
  line-height: 1.2;
  margin: 0 0 8px;
  overflow-wrap: anywhere;
}
.calc-result #result-rows {
  list-style: none;
  padding: 0;
  margin: 0 0 10px;
}
.calc-result #result-rows li {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 6px 0;
  border-bottom: 1px solid #d7e2f6;
  font-size: 12.5px;
  color: var(--calc-muted);
  min-width: 0;
}
.calc-result #result-rows li span,
.calc-result #result-rows li strong {
  overflow-wrap: anywhere;
}
.calc-result #result-rows li strong { color: var(--calc-ink); font-weight: 700; }
.calc-result #chart-wrap {
  width: 120px;
  height: 120px;
  max-width: 100%;
  margin: 0 auto 10px;
}
.calc-cta {
  margin-top: auto;
  display: block;
  text-align: center;
  background: var(--calc-green);
  color: #fff !important;
  font-weight: 700;
  font-size: 13px;
  border-radius: 999px;
  padding: 10px 14px;
  text-decoration: none !important;
  border: none;
}
.calc-cta:hover { background: var(--calc-green-dark); color: #fff !important; }
.calc-error {
  background: #fef2f2;
  color: #b91c1c;
  border: 1px solid #fecaca;
  border-radius: 8px;
  padding: 6px 8px;
  font-size: 12px;
  margin-bottom: 8px;
}
.calc-disclaimer {
  font-size: 11px;
  color: var(--calc-muted);
  margin: 8px 0 10px;
  overflow-wrap: anywhere;
}

.calc-faq { margin-top: 18px; }
.calc-faq h2 { font-size: 15px; font-weight: 700; margin-bottom: 8px; }
.calc-faq details {
  background: #fff;
  border-radius: 10px;
  border: 1px solid var(--calc-line);
  padding: 10px 12px;
  margin-bottom: 6px;
}
.calc-faq summary { font-size: 13px; font-weight: 700; cursor: pointer; }
.calc-faq p { font-size: 13px; margin: 6px 0 0; }

.related-wrap { margin-top: 16px; }
.related-wrap h2 { font-size: 15px; font-weight: 700; margin-bottom: 8px; }
.related-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.related-chip {
  border: 1px solid var(--calc-line);
  border-radius: 999px;
  padding: 5px 11px;
  color: inherit;
  text-decoration: none;
  font-size: 12px;
  font-weight: 600;
  background: #fff;
  max-width: 100%;
  overflow-wrap: anywhere;
}
.related-chip:hover { border-color: var(--calc-blue); color: var(--calc-blue); }

.calc-badge { background: var(--calc-blue-soft); color: var(--calc-blue); }
.custom-range {
  -webkit-appearance: none;
  width: 100%;
  max-width: 100%;
  height: 4px;
  background: #e2e8f0;
  border-radius: 10px;
  outline: none;
}
.custom-range::-webkit-slider-thumb {
  -webkit-appearance: none; width: 15px; height: 15px; background: var(--calc-blue);
  cursor: pointer; border-radius: 50%; border: 3px solid #fff;
}
.custom-range::-moz-range-thumb {
  width: 15px; height: 15px; background: var(--calc-blue); cursor: pointer;
  border-radius: 50%; border: 3px solid #fff;
}
.toggle-group { margin: 0 -4px; }
.toggle-group input[type="radio"] { display: none; }
.toggle-btn {
  display: flex; align-items: center; justify-content: center;
  padding: 7px 8px; background: #f8fafc; border: 1.5px solid var(--calc-line);
  border-radius: 9px; color: #64748b; font-weight: 600; cursor: pointer; font-size: 12px;
}
.toggle-group input[type="radio"]:checked + .toggle-btn {
  background: var(--calc-blue-soft); border-color: var(--calc-blue); color: var(--calc-blue);
}
.calc-twin {
  width: 96px;
  max-width: 38%;
  text-align: right;
  font-weight: 700;
  color: var(--calc-blue);
  font-size: 12.5px;
  flex: 0 0 auto;
}
.period-toggle {
  display: inline-flex;
  background: #fff;
  border: 1px solid var(--calc-line);
  border-radius: 999px;
  padding: 2px;
  margin-bottom: 8px;
}
.toggle-premium-period {
  border: 0; background: transparent; color: var(--calc-muted); font-weight: 600; font-size: 12px;
  border-radius: 999px; padding: 5px 11px;
}
.toggle-premium-period.active { background: var(--calc-blue); color: #fff; }
.calc-range-ends { display: none; }

@media (max-width: 991px) {
  .calc-workspace { grid-template-columns: minmax(0, 1fr); }
  .calc-result { border-left: 0; border-top: 1px solid #d7e2f6; }
  .calc-result #chart-wrap { display: none !important; }
}