/* ===== CALCULATOR PAGES — Public Signal ===== */

/* 1. Container */
.calc-container {
  margin: 0 auto;
}

.calc-container *,
.calc-container *::before,
.calc-container *::after {
  box-sizing: border-box;
}


.calc-container h1 {
  font-family: var(--pulse-font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.calc-container .subtitle {
  color: var(--text-secondary);
  font-family: var(--pulse-font-body);
  font-size: 0.95rem;
  margin-bottom: 2rem;
}

/* 1b. Page-level grid: main + sidebar */
.calc-page-grid {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 2rem;
  align-items: start;
}

.calc-main {
  min-width: 0;
}

/* 1c. Right sidebar */
.calc-sidebar {
  position: sticky;
  top: calc(var(--header-height, 64px) + 1.5rem);
  max-height: calc(100vh - var(--header-height, 64px) - 3rem);
  overflow-y: auto;
}

.calc-sidebar-card {
  background: var(--bg-surface);
  border: 1px solid color-mix(in srgb, var(--border-color) 88%, transparent);
  border-radius: 16px;
  padding: 1.25rem;
  box-shadow: var(--surface-shadow);
}

.calc-sidebar-card h3 {
  font-family: var(--pulse-font-display);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid color-mix(in srgb, var(--border-color) 60%, transparent);
}

.calc-sidebar-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.calc-sidebar-card li {
  border-bottom: 1px solid color-mix(in srgb, var(--border-color) 40%, transparent);
}

.calc-sidebar-card li:last-child {
  border-bottom: none;
}

.calc-sidebar-card a {
  display: block;
  padding: 0.6rem 0.25rem;
  color: var(--text-secondary);
  font-family: var(--pulse-font-body);
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none;
  transition: color 160ms ease;
}

.calc-sidebar-card a:hover {
  color: var(--accent-blue);
}

.calc-sidebar-card li.active a {
  color: var(--accent-blue);
  font-weight: 700;
}

/* 2. Calculator grid */
.calculator-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

/* 3. Input section */
.input-section {
  background: var(--bg-surface);
  border: 1px solid color-mix(in srgb, var(--border-color) 88%, transparent);
  border-radius: 18px;
  padding: 1.75rem;
  box-shadow: var(--surface-shadow);
}

.input-section h2 {
  font-family: var(--pulse-font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.input-group {
  margin-bottom: 1.25rem;
}

.input-group:last-child {
  margin-bottom: 0;
}

.input-group label {
  display: block;
  font-family: var(--pulse-font-body);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.input-group .hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.input-group .optional {
  color: var(--text-muted);
  font-weight: 400;
}

.input-wrapper {
  position: relative;
}

.input-wrapper .prefix {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-family: var(--pulse-font-mono);
  font-size: 0.9rem;
}

input[type="number"],
input[type="text"],
.calc-container select {
  width: 100%;
  padding: 0.875rem 1rem;
  padding-left: 2.25rem;
  background: color-mix(in srgb, var(--bg-subtle) 56%, transparent);
  border: 1px solid color-mix(in srgb, var(--border-color) 88%, transparent);
  border-radius: 12px;
  color: var(--text-primary);
  font-family: var(--pulse-font-body);
  font-size: 0.95rem;
  transition: border-color 180ms ease, box-shadow 180ms ease;
  box-sizing: border-box;
}

input[type="number"]:focus,
input[type="text"]:focus,
.calc-container select:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent-blue) 12%, transparent);
}

input[type="number"]::placeholder {
  color: var(--text-muted);
}

input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

input[type="number"] {
  -moz-appearance: textfield;
}

/* 4. Result section */
.result-section {
  background: var(--bg-surface);
  border: 1px solid color-mix(in srgb, var(--border-color) 88%, transparent);
  border-radius: 18px;
  padding: 1.75rem;
  box-shadow: var(--surface-shadow);
}

.result-section h2 {
  font-family: var(--pulse-font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
}

.result-card {
  background: color-mix(in srgb, var(--accent-green) 6%, var(--bg-surface));
  border: 1px solid color-mix(in srgb, var(--accent-green) 40%, var(--border-color));
  border-radius: 14px;
  padding: 1.5rem;
  text-align: center;
  margin-bottom: 1.5rem;
}

.result-card .label {
  font-family: var(--pulse-font-body);
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 0.5rem;
}

.result-card .amount {
  font-family: var(--pulse-font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  color: var(--accent-green);
}

.result-card .sub-info {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-top: 0.75rem;
}

.result-card .sub-info span {
  color: var(--text-primary);
  font-weight: 600;
}

/* 5. Breakdown */
.breakdown-section {
  background: color-mix(in srgb, var(--bg-subtle) 56%, transparent);
  border-radius: 14px;
  padding: 1.25rem;
  margin-bottom: 1rem;
}

.breakdown-section h3 {
  font-family: var(--pulse-font-body);
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1rem;
}

.breakdown-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.6rem 0;
  border-bottom: 1px solid color-mix(in srgb, var(--border-color) 60%, transparent);
  font-size: 0.88rem;
}

.breakdown-row:last-child {
  border-bottom: none;
}

.breakdown-row .rule-name {
  color: var(--text-secondary);
}

.breakdown-row .rule-value {
  font-family: var(--pulse-font-mono);
  color: var(--text-primary);
  font-weight: 600;
}

.breakdown-row.winner {
  background: color-mix(in srgb, var(--accent-green) 8%, transparent);
  margin: 0 -1.25rem;
  padding: 0.6rem 1.25rem;
  border-radius: 8px;
  border-bottom: none;
}

.breakdown-row.winner .rule-name {
  color: var(--accent-green);
  font-weight: 600;
}

.breakdown-row.winner .rule-value {
  color: var(--accent-green);
}

.breakdown-row .checkmark {
  color: var(--accent-green);
  margin-left: 0.5rem;
}

/* 6. Note boxes */
.warning-message {
  background: color-mix(in srgb, #c48a1a 8%, transparent);
  border: 1px solid color-mix(in srgb, #c48a1a 40%, transparent);
  border-radius: 12px;
  padding: 0.85rem 1.15rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
  display: none;
}

.warning-message.show {
  display: block;
}

.regime-note {
  background: color-mix(in srgb, var(--accent-blue) 6%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent-blue) 30%, var(--border-color));
  border-radius: 12px;
  padding: 0.85rem 1.15rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.regime-note strong {
  color: var(--accent-blue);
}

.disclaimer {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 1rem;
  padding: 0.75rem;
  background: color-mix(in srgb, var(--bg-subtle) 56%, transparent);
  border-radius: 10px;
}

/* 7. Content sections (below calculator) */
.content-section {
  margin-top: 2.5rem;
  background: var(--bg-surface);
  border: 1px solid color-mix(in srgb, var(--border-color) 88%, transparent);
  border-radius: 18px;
  padding: 1.5rem 1.5rem;
  box-shadow: var(--surface-shadow);
}

.content-section h2 {
  font-family: var(--pulse-font-display);
  font-size: clamp(1.15rem, 2.5vw, 1.3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid color-mix(in srgb, var(--border-color) 60%, transparent);
}

.content-section h3 {
  font-family: var(--pulse-font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-top: 1.75rem;
  margin-bottom: 0.75rem;
}

.content-section p {
  color: var(--text-secondary);
  font-family: var(--pulse-font-body);
  font-size: 0.92rem;
  line-height: 1.8;
  margin-bottom: 1rem;
}

.content-section p:last-child {
  margin-bottom: 0;
}

.content-section ul {
  color: var(--text-secondary);
  margin-left: 0.5rem;
  padding-left: 1rem;
  margin-bottom: 1rem;
}

.content-section ul:last-child {
  margin-bottom: 0;
}

.content-section li {
  margin-bottom: 0.6rem;
  line-height: 1.75;
  font-size: 0.92rem;
}

.content-section li:last-child {
  margin-bottom: 0;
}

.content-section strong {
  color: var(--text-primary);
}

.formula-box {
  background: color-mix(in srgb, var(--bg-subtle) 56%, transparent);
  border: 1px solid color-mix(in srgb, var(--border-color) 88%, transparent);
  border-radius: 14px;
  padding: 1.5rem;
  margin: 1.25rem 0;
  font-family: var(--pulse-font-mono);
  font-size: 0.88rem;
  color: var(--text-primary);
  line-height: 1.8;
}

.formula-box .formula-title {
  font-family: var(--pulse-font-body);
  font-weight: 700;
  color: var(--accent-blue);
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
}

/* 8. FAQ section */
.calc-faq-section {
  margin-top: 2.5rem;
}

.calc-faq-section h2 {
  font-family: var(--pulse-font-display);
  font-size: clamp(1.15rem, 2.5vw, 1.3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

/* 9. Related calculators */
.related-calculators {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.9rem;
  margin-top: 2.5rem;
}

.related-calc-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.5rem;
  padding: 1.5rem;
  border: 1px solid color-mix(in srgb, var(--border-color) 88%, transparent);
  border-radius: 18px;
  background: var(--bg-surface);
  box-shadow: var(--surface-shadow);
  text-decoration: none;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.related-calc-card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--accent-blue) 24%, var(--border-color) 76%);
  box-shadow: var(--surface-shadow-strong);
  text-decoration: none;
}

.related-calc-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--accent-blue-soft);
  color: var(--accent-blue);
}

.related-calc-title {
  font-family: var(--pulse-font-display);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.related-calc-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  margin-top: auto;
  color: var(--accent-blue);
  font-size: 0.84rem;
  font-weight: 600;
}

.related-calc-link svg {
  transition: transform 200ms ease;
}

.related-calc-card:hover .related-calc-link svg {
  transform: translateX(3px);
}

/* 10. Ref-link chips */
.ref-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: color-mix(in srgb, var(--bg-subtle) 56%, transparent);
  border: 1px solid color-mix(in srgb, var(--border-color) 88%, transparent);
  border-radius: 10px;
  padding: 0.55rem 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-blue);
  text-decoration: none;
  margin: 0.5rem 0;
  transition: border-color 180ms ease;
}

.ref-link:hover {
  border-color: var(--accent-blue);
  text-decoration: none;
}

/* 11. Chart container */
.calc-chart-wrap {
  border: 1px solid color-mix(in srgb, var(--border-color) 88%, transparent);
  border-radius: 16px;
  background: color-mix(in srgb, var(--bg-subtle) 56%, transparent);
  padding: 1rem;
  margin-top: 1.5rem;
  min-width: 0;
  overflow: hidden;
}

/* 12. Info icon + tooltip */
.info-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 14px;
  height: 14px;
  border-radius: 999px;
  background: var(--text-muted);
  color: var(--bg-surface);
  font-size: 0.5rem;
  font-weight: 700;
  cursor: help;
  margin-left: 0.25rem;
  vertical-align: middle;
  position: relative;
}

.info-icon:hover {
  background: var(--accent-blue);
}

.info-tooltip {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-emphasis);
  color: var(--bg-body);
  padding: 0.65rem 0.85rem;
  border-radius: 10px;
  font-family: var(--pulse-font-body);
  font-size: 0.75rem;
  font-weight: 400;
  width: 200px;
  text-align: left;
  line-height: 1.5;
  opacity: 0;
  visibility: hidden;
  transition: opacity 180ms ease;
  z-index: 100;
}

.info-tooltip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: var(--bg-emphasis);
}

.info-icon:hover .info-tooltip {
  opacity: 1;
  visibility: visible;
}

/* 13. Responsive */
@media (max-width: 1100px) {
  .calc-page-grid {
    grid-template-columns: 1fr;
  }

  .calc-sidebar {
    display: none;
  }
}

@media (max-width: 768px) {
  .calculator-grid {
    grid-template-columns: 1fr;
  }

  .input-section,
  .result-section {
    padding: 1.25rem 1rem;
  }

  .result-card .amount {
    font-size: 2rem;
  }

  .content-section {
    padding: 1.25rem 1rem;
  }
}

@media (max-width: 600px) {
  .related-calculators {
    grid-template-columns: 1fr;
  }
}