/* ── Calculator ── */

/* Override smooth scroll on calculator page */
html {
  scroll-behavior: auto;
}

/* ── Intro ── */
.calc-intro {
  padding-top: calc(var(--header-height) + 3.75rem);
  padding-bottom: 0;
}
.calc-intro h1 {
  font-size: 2rem;
  margin-bottom: 2.5rem;
}
.calc-intro p {
  font-size: 1.125rem;
  font-weight: 300;
  color: var(--color-text-muted);
  max-width: 720px;
  line-height: 1.7;
}

/* ── Layout ── */
.calc-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  padding-bottom: 2rem;
}

/* ── Inputs ── */

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

.calc-input-row {
  display: flex;
  align-items: center;
  gap: 0.625rem;
}
.calc-input-row label {
  flex: 1;
  font-size: 0.9375rem;
  color: var(--color-text);
}

/* Shared number input styles */
.calc-input-row input[type="number"],
.calc-checkbox-header input[type="number"] {
  width: 5.5rem;
  padding: 0.375rem 0.5rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  text-align: right;
  -moz-appearance: textfield;
}
.calc-input-row input[type="number"]::-webkit-inner-spin-button,
.calc-input-row input[type="number"]::-webkit-outer-spin-button,
.calc-checkbox-header input[type="number"]::-webkit-inner-spin-button,
.calc-checkbox-header input[type="number"]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.calc-input-row input[type="number"]:focus,
.calc-checkbox-header input[type="number"]:focus {
  outline: none;
  border-color: var(--color-accent);
}

.calc-unit {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-text-dim);
  min-width: 2.5rem;
}

/* ── Checkbox items ── */
.calc-checkbox-item {
  margin-bottom: 1rem;
}

.calc-checkbox-header {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  cursor: pointer;
  margin-bottom: 0.5rem;
}

.calc-checkbox-header input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 1.125rem;
  height: 1.125rem;
  border: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
  cursor: pointer;
  position: relative;
  flex-shrink: 0;
}
.calc-checkbox-header input[type="checkbox"]:checked {
  background: var(--color-accent);
  border-color: var(--color-accent);
}
.calc-checkbox-header input[type="checkbox"]:checked::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 1px;
  width: 5px;
  height: 9px;
  border: solid var(--color-bg);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}
.calc-checkbox-header input[type="checkbox"]:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.calc-checkbox-label {
  font-size: 0.9375rem;
  color: var(--color-text);
  user-select: none;
  display: flex;
  flex-direction: column;
  flex: 1;
  cursor: pointer;
}
.calc-checkbox-hint {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-weight: 300;
  line-height: 1.3;
}

.calc-checkbox-header .stat-value {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-text);
  text-align: right;
  min-width: 3.5rem;
}

/* Disabled checkbox state */
.calc-checkbox-item.disabled .calc-checkbox-title {
  text-decoration: line-through;
}
.calc-checkbox-item.disabled .calc-checkbox-header input[type="number"] {
  opacity: 0.4;
  pointer-events: none;
}
.calc-checkbox-item.disabled .calc-checkbox-header .calc-unit,
.calc-checkbox-item.disabled .calc-checkbox-header .stat-value {
  opacity: 0.4;
}

/* ── Results panel ── */
.calc-results {
  background: var(--color-bg-elevated);
  padding: 2rem;
}

/* ── Main result ── */
.calc-comparison {
  margin-bottom: 2rem;
  text-align: center;
}
.calc-comparison-item {
  margin-bottom: 1.25rem;
}
.calc-comparison-item:last-child {
  margin-bottom: 0;
}
.calc-comparison-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-dim);
  margin-bottom: 0.25rem;
}
.calc-comparison-value {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.2;
}
.calc-comparison-value.accent {
  color: var(--color-accent);
}

/* ── Breakdown table ── */
.calc-breakdown {
  margin-bottom: 1.5rem;
}
.calc-breakdown-cols {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding-bottom: 0.375rem;
  margin-bottom: 0.375rem;
  border-bottom: 1px solid var(--color-border);
}
.calc-breakdown-header {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-dim);
  flex: 1;
}
.calc-hours .calc-breakdown-header {
  flex: none;
  padding-bottom: 0.375rem;
  margin-bottom: 0.375rem;
  border-bottom: 1px solid var(--color-border);
}
.calc-breakdown-col-header {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-dim);
  text-align: right;
  min-width: 5.5rem;
}

.calc-breakdown-row {
  display: flex;
  align-items: baseline;
  padding: 0.25rem 0;
  font-size: 0.875rem;
}
.calc-breakdown-row .label {
  flex: 1;
  color: var(--color-text-muted);
}
.calc-breakdown-row .annual {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  text-align: right;
  min-width: 5.5rem;
}
.calc-breakdown-row .hourly {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-text);
  text-align: right;
  min-width: 5.5rem;
  margin-left: 1rem;
}

.calc-breakdown-row.sub {
  padding-left: 1rem;
}
.statutory-source-link {
  color: inherit;
  text-decoration: none;
}
.statutory-source-link svg {
  vertical-align: middle;
  margin-left: 0.25rem;
  opacity: 0.6;
  transition: opacity 0.15s;
}
.statutory-source-link:hover svg,
.statutory-source-link:focus-visible svg {
  color: var(--color-accent);
  opacity: 1;
}

.calc-breakdown-row.total {
  border-top: 1px solid var(--color-border);
  margin-top: 0.375rem;
  padding-top: 0.5rem;
  font-weight: 500;
}
.calc-breakdown-row.total .label {
  color: var(--color-text);
}
.calc-breakdown-row.total .annual {
  color: var(--color-text);
}
.calc-breakdown-row.total .hourly {
  color: var(--color-accent);
  font-weight: 700;
}

/* ── Hours breakdown ── */
.calc-hours {
  margin-top: 1.5rem;
}
.calc-hours-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.1875rem 0;
  font-size: 0.875rem;
}
.calc-hours-row span:first-child {
  color: var(--color-text-muted);
}
.calc-hours-row span:last-child {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}
.calc-hours-row.total {
  border-top: 1px solid var(--color-border);
  margin-top: 0.375rem;
  padding-top: 0.375rem;
}
.calc-hours-row.total span {
  color: var(--color-text);
}

/* ── Responsive: 768px+ ── */
@media (min-width: 768px) {
  .calc-layout {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
}

/* ── Responsive: 1024px+ ── */
@media (min-width: 1024px) {
  .calc-layout {
    grid-template-columns: 1fr 1fr;
    gap: 3.5rem;
  }
}

/* ── Small mobile (iPhone SE etc.) ── */
@media (max-width: 400px) {
  .calc-breakdown-row .annual,
  .calc-breakdown-cols .calc-breakdown-col-header:first-of-type {
    display: none;
  }
}

/* ── Mobile ── */
@media (max-width: 767px) {
  .calc-results {
    padding: 1rem;
    margin: 0 -1.25rem;
  }
  .calc-checkbox-header {
    gap: 0.5rem;
  }
  .calc-checkbox-header input[type="number"],
  .calc-input-row input[type="number"] {
    width: 4.5rem;
    padding: 0.3rem 0.4rem;
    font-size: 0.8125rem;
  }
  .calc-unit {
    min-width: 2rem;
    font-size: 0.75rem;
  }
  .calc-checkbox-label {
    font-size: 0.875rem;
  }
  .calc-checkbox-hint {
    font-size: 0.6875rem;
  }
}