/* KiwiSaver Calculator
   Scoped entirely under .ksc so no WordPress theme can bleed in or out.
   Palette carried over from the original design system. */

.ksc {
  /* Core palette */
  --ksc-bg: hsl(40 20% 98%);
  --ksc-fg: hsl(200 25% 15%);
  --ksc-card: hsl(0 0% 100%);
  --ksc-primary: hsl(172 50% 35%);
  --ksc-primary-fg: hsl(0 0% 100%);
  --ksc-secondary: hsl(150 20% 92%);
  --ksc-muted: hsl(40 15% 94%);
  --ksc-muted-fg: hsl(200 15% 45%);
  --ksc-accent: hsl(172 60% 45%);
  --ksc-border: hsl(200 15% 88%);
  --ksc-ring: hsl(172 50% 35%);

  /* Chart */
  --ksc-chart-balance: hsl(172 60% 30%);
  --ksc-chart-contrib: hsl(172 40% 55%);
  --ksc-chart-grid: hsl(200 15% 90%);

  /* Breakdown bars */
  --ksc-bar-you: hsl(172 50% 35%);
  --ksc-bar-employer: hsl(172 40% 50%);
  --ksc-bar-govt: hsl(172 30% 65%);
  --ksc-bar-returns: hsl(150 40% 55%);

  --ksc-radius: 0.75rem;
  --ksc-shadow-md: 0 4px 12px hsl(200 25% 15% / 0.08);
  --ksc-shadow-lg: 0 8px 24px hsl(200 25% 15% / 0.12);
  --ksc-glow: 0 0 24px hsl(172 50% 35% / 0.15);

  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  color: var(--ksc-fg);
  max-width: 1120px;
  margin: 0 auto;
  -webkit-font-smoothing: antialiased;
}

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

.ksc p,
.ksc h2,
.ksc h3,
.ksc h4,
.ksc ul,
.ksc li,
.ksc dl,
.ksc dt,
.ksc dd {
  margin: 0;
  padding: 0;
}

.ksc ul {
  list-style: none;
}

/* ---------- Layout ---------- */

.ksc-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
}

@media (min-width: 900px) {
  .ksc-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: start;
  }
}

.ksc-col {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  min-width: 0;
}

.ksc-card {
  background: linear-gradient(180deg, hsl(0 0% 100%) 0%, hsl(40 20% 98%) 100%);
  border: 1px solid var(--ksc-border);
  border-radius: 1rem;
  padding: 1.5rem;
  box-shadow: var(--ksc-shadow-md);
}

@media (min-width: 768px) {
  .ksc-card {
    padding: 2rem;
  }
}

.ksc-card--highlight {
  border-color: hsl(172 50% 35% / 0.2);
  box-shadow: var(--ksc-shadow-lg), var(--ksc-glow);
}

.ksc h2.ksc-card-title {
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--ksc-fg);
  margin-bottom: 1.5rem;
}

/* ---------- Sliders ---------- */

.ksc-field + .ksc-field {
  margin-top: 1.5rem;
}

.ksc-field-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 0.625rem;
}

.ksc label.ksc-label {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--ksc-fg);
}

.ksc-value {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--ksc-primary);
  font-variant-numeric: tabular-nums;
}

.ksc-help {
  font-size: 0.8125rem;
  color: var(--ksc-muted-fg);
  margin-top: 0.875rem;
}

.ksc input[type="range"].ksc-range {
  -webkit-appearance: none;
  appearance: none;
  display: block;
  width: 100%;
  height: 8px;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(
    to right,
    var(--ksc-primary) 0%,
    var(--ksc-primary) var(--ksc-fill, 0%),
    var(--ksc-secondary) var(--ksc-fill, 0%),
    var(--ksc-secondary) 100%
  );
  cursor: pointer;
  outline: none;
}

.ksc input[type="range"].ksc-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  height: 20px;
  width: 20px;
  border-radius: 50%;
  background: var(--ksc-card);
  border: 2px solid var(--ksc-primary);
  box-shadow: var(--ksc-shadow-md);
  cursor: pointer;
  transition: transform 0.15s ease;
}

.ksc input[type="range"].ksc-range::-webkit-slider-thumb:hover {
  transform: scale(1.1);
}

.ksc input[type="range"].ksc-range::-moz-range-thumb {
  height: 20px;
  width: 20px;
  border-radius: 50%;
  background: var(--ksc-card);
  border: 2px solid var(--ksc-primary);
  box-shadow: var(--ksc-shadow-md);
  cursor: pointer;
}

.ksc input[type="range"].ksc-range:focus-visible {
  outline: 2px solid var(--ksc-ring);
  outline-offset: 4px;
}

/* ---------- Chips (rate + fund) ---------- */

.ksc-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.ksc button.ksc-chip {
  font: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1;
  color: var(--ksc-fg);
  background: var(--ksc-card);
  border: 1px solid var(--ksc-border);
  border-radius: 0.625rem;
  padding: 0.75rem 1rem;
  margin: 0;
  cursor: pointer;
  text-transform: none;
  letter-spacing: normal;
  box-shadow: none;
  transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
}

.ksc button.ksc-chip:hover {
  border-color: var(--ksc-primary);
}

.ksc button.ksc-chip[aria-pressed="true"] {
  background: var(--ksc-primary);
  border-color: var(--ksc-primary);
  color: var(--ksc-primary-fg);
}

.ksc button.ksc-chip:focus-visible {
  outline: 2px solid var(--ksc-ring);
  outline-offset: 2px;
}

.ksc-fund-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
}

@media (min-width: 540px) {
  .ksc-fund-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.ksc button.ksc-fund {
  font: inherit;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.375rem;
  padding: 1rem 0.5rem;
  background: var(--ksc-card);
  border: 1px solid var(--ksc-border);
  border-radius: 0.75rem;
  cursor: pointer;
  color: var(--ksc-fg);
  text-transform: none;
  letter-spacing: normal;
  box-shadow: none;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.ksc button.ksc-fund:hover {
  border-color: var(--ksc-primary);
}

.ksc button.ksc-fund[aria-pressed="true"] {
  border-color: var(--ksc-primary);
  background: hsl(172 50% 35% / 0.06);
}

.ksc button.ksc-fund:focus-visible {
  outline: 2px solid var(--ksc-ring);
  outline-offset: 2px;
}

.ksc-fund-name {
  font-size: 0.875rem;
  font-weight: 600;
}

.ksc-fund-icon {
  width: 20px;
  height: 20px;
  stroke: var(--ksc-primary);
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.ksc-fund-note {
  margin-top: 0.875rem;
  padding: 0.875rem 1rem;
  background: var(--ksc-muted);
  border-radius: 0.625rem;
  font-size: 0.875rem;
  color: var(--ksc-muted-fg);
}

.ksc-fund-note strong {
  color: var(--ksc-fg);
  font-weight: 600;
}

.ksc-group + .ksc-group {
  margin-top: 1.75rem;
}

.ksc-group-label {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 0.75rem;
  font-size: 0.9375rem;
  font-weight: 500;
}

/* ---------- Results ---------- */

.ksc-result-head {
  text-align: center;
  margin-bottom: 1.5rem;
}

.ksc-result-label {
  font-size: 0.875rem;
  color: var(--ksc-muted-fg);
  font-weight: 500;
}

.ksc-result-figure {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ksc-primary);
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
  margin-top: 0.25rem;
}

@media (min-width: 768px) {
  .ksc-result-figure {
    font-size: 3rem;
  }
}

.ksc-income {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  background: var(--ksc-secondary);
  border-radius: 0.75rem;
  padding: 1rem;
  margin-bottom: 1.5rem;
  text-align: center;
}

.ksc-income-figure {
  font-size: 1.25rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  margin-top: 0.125rem;
}

.ksc-breakdown-title {
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 0.875rem;
}

.ksc-bar-row + .ksc-bar-row {
  margin-top: 0.875rem;
}

.ksc-bar-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.875rem;
  margin-bottom: 0.375rem;
}

.ksc-bar-amount {
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.ksc-bar-track {
  height: 6px;
  border-radius: 999px;
  background: var(--ksc-muted);
  overflow: hidden;
}

.ksc-bar-fill {
  height: 100%;
  border-radius: 999px;
  transition: width 0.25s ease;
}

.ksc-footnote {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--ksc-border);
  font-size: 0.8125rem;
  color: var(--ksc-muted-fg);
  text-align: center;
}

/* ---------- Today's dollars toggle ---------- */

.ksc-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
  margin-bottom: 1.25rem;
  font-size: 0.875rem;
  color: var(--ksc-muted-fg);
}

.ksc label.ksc-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
}

.ksc input[type="checkbox"].ksc-checkbox {
  appearance: none;
  -webkit-appearance: none;
  width: 40px;
  height: 22px;
  margin: 0;
  border-radius: 999px;
  background: var(--ksc-border);
  position: relative;
  cursor: pointer;
  transition: background 0.2s ease;
  flex: 0 0 auto;
}

.ksc input[type="checkbox"].ksc-checkbox::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #fff;
  transition: transform 0.2s ease;
}

.ksc input[type="checkbox"].ksc-checkbox:checked {
  background: var(--ksc-primary);
}

.ksc input[type="checkbox"].ksc-checkbox:checked::after {
  transform: translateX(18px);
}

.ksc input[type="checkbox"].ksc-checkbox:focus-visible {
  outline: 2px solid var(--ksc-ring);
  outline-offset: 2px;
}

/* ---------- Chart ---------- */

.ksc-chart-wrap {
  position: relative;
}

.ksc-chart {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
  touch-action: pan-y;
}

.ksc-chart-axis {
  font-size: 11px;
  fill: var(--ksc-muted-fg);
}

@media (max-width: 640px) {
  .ksc-chart-axis {
    font-size: 16px;
  }
}

.ksc-legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.25rem;
  margin-top: 1rem;
  font-size: 0.8125rem;
  color: var(--ksc-muted-fg);
}

.ksc-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.ksc-legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex: 0 0 auto;
}

.ksc-readout {
  margin-top: 0.875rem;
  padding: 0.75rem 1rem;
  background: var(--ksc-muted);
  border-radius: 0.625rem;
  font-size: 0.875rem;
  text-align: center;
  min-height: 2.75rem;
  color: var(--ksc-muted-fg);
}

.ksc-readout strong {
  color: var(--ksc-fg);
  font-variant-numeric: tabular-nums;
}

/* ---------- Assumptions ---------- */

.ksc details.ksc-assumptions {
  padding: 0;
}

.ksc summary.ksc-summary {
  list-style: none;
  cursor: pointer;
  padding: 1.25rem 1.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.ksc summary.ksc-summary::-webkit-details-marker {
  display: none;
}

.ksc summary.ksc-summary::after {
  content: "";
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--ksc-muted-fg);
  border-bottom: 2px solid var(--ksc-muted-fg);
  transform: rotate(45deg) translateY(-2px);
  transition: transform 0.2s ease;
  flex: 0 0 auto;
}

.ksc details[open] summary.ksc-summary::after {
  transform: rotate(-135deg) translateY(-2px);
}

.ksc summary.ksc-summary:focus-visible {
  outline: 2px solid var(--ksc-ring);
  outline-offset: -2px;
}

.ksc-assumptions-body {
  padding: 0 1.5rem 1.5rem;
  font-size: 0.875rem;
  color: var(--ksc-muted-fg);
}

.ksc-assumptions-body dl {
  display: grid;
  gap: 0.625rem;
}

.ksc-assumptions-body dt {
  font-weight: 600;
  color: var(--ksc-fg);
}

.ksc-assumptions-body dd {
  margin-top: 0.125rem;
}

.ksc-assumptions-body .ksc-updated {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--ksc-border);
  font-size: 0.8125rem;
}

@media (prefers-reduced-motion: reduce) {
  .ksc *,
  .ksc *::before,
  .ksc *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}