/* Solar Panel Payback Calculator - Content Area Styles */
:root {
  --spp-bg: #ffffff;
  --spp-surface: #fefce8;
  --spp-card: #ffffff;
  --spp-border: #fef08a;
  --spp-line: #fde047;
  --spp-ink: #713f12;
  --spp-ink-soft: #854d0e;
  --spp-ink-faint: #ca8a04;
  --spp-primary: var(--tf-accent, #ca8a04);
  --spp-primary-hover: #a16207;
  --spp-green: #15803d;
  --spp-radius: 2px;
}

.spp-main {
  width: 100%;
  color: var(--spp-ink);
}

.spp-wrap {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 16px;
}

/* Controls bar */
.spp-controls-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
  margin-bottom: 24px;
  padding: 16px;
  background: var(--spp-surface);
  border: 1px solid var(--spp-line);
  border-radius: var(--spp-radius);
}

.spp-control-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.spp-control-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--spp-ink-soft);
}

/* Panels */
.spp-panel {
  background: var(--spp-card);
  border: 1px solid var(--spp-line);
  border-radius: var(--spp-radius);
  padding: 24px;
  margin-bottom: 24px;
}

.spp-form-panel,
.spp-results-panel {
  position: relative;
}

.spp-panel-title {
  font-size: 1.125rem;
  font-weight: 700;
  margin: 0 0 16px 0;
  color: var(--spp-ink);
}

.spp-stat-grid {
  margin-top: 16px;
}

.spp-ad {
  overflow: hidden;
  min-height: 280px;
}

/* Grids */
.spp-grid {
  display: grid;
  gap: 16px;
}

.spp-grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.spp-grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.spp-grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.spp-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.spp-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--spp-ink);
}

.spp-hint {
  font-size: 0.75rem;
  color: var(--spp-ink-soft);
}

.spp-input-wrap {
  display: flex;
  align-items: center;
  position: relative;
}

.spp-input,
.spp-select {
  width: 100%;
  padding: 8px 12px;
  font-size: 0.875rem;
  color: var(--spp-ink);
  background: var(--spp-card);
  border: 1px solid var(--spp-line);
  border-radius: var(--spp-radius);
  font-family: inherit;
  box-sizing: border-box;
}

.spp-input:focus,
.spp-select:focus {
  outline: 2px solid var(--spp-primary);
  border-color: var(--spp-primary);
}

.spp-unit {
  position: absolute;
  right: 12px;
  font-size: 0.8125rem;
  color: var(--spp-ink-soft);
  pointer-events: none;
}

.spp-curr-prefix {
  position: absolute;
  left: 10px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--spp-ink-soft);
  pointer-events: none;
}

.spp-curr-prefix + .spp-input {
  padding-left: 22px;
}

/* Buttons */
.spp-action-bar {
  display: flex;
  gap: 12px;
  margin-top: 24px;
  flex-wrap: wrap;
}

.spp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--spp-radius);
  cursor: pointer;
  border: 1px solid transparent;
  transition: background-color 0.15s ease;
}

.spp-btn-primary {
  background: var(--spp-primary);
  color: #ffffff;
}

.spp-btn-primary:hover {
  background: var(--spp-primary-hover);
}

.spp-btn-secondary {
  background: var(--spp-surface);
  color: var(--spp-ink);
  border-color: var(--spp-line);
}

.spp-btn-secondary:hover {
  background: var(--spp-card);
  border-color: var(--spp-ink);
}

/* Hero Summary */
.spp-summary-hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.spp-hero-card {
  padding: 20px;
  border: 1px solid var(--spp-line);
  border-radius: var(--spp-radius);
  background: var(--spp-surface);
}

.spp-hero-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--spp-ink-soft);
  margin-bottom: 6px;
}

.spp-hero-value {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--spp-primary);
  margin-bottom: 6px;
  font-variant-numeric: tabular-nums;
}

.spp-hero-sub {
  font-size: 0.8125rem;
  color: var(--spp-ink-soft);
}

/* Stat Box */
.spp-stat-box {
  padding: 14px;
  background: var(--spp-card);
  border: 1px solid var(--spp-line);
  border-radius: var(--spp-radius);
}

.spp-stat-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--spp-ink-soft);
  margin-bottom: 4px;
}

.spp-stat-num {
  display: block;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--spp-ink);
  font-variant-numeric: tabular-nums;
}

.spp-stat-sub {
  display: block;
  font-size: 0.75rem;
  color: var(--spp-ink-soft);
  margin-top: 2px;
}

/* Chart Card */
.spp-chart-card {
  margin-top: 24px;
  padding: 20px;
  background: var(--spp-surface);
  border: 1px solid var(--spp-line);
  border-radius: var(--spp-radius);
}

.spp-chart-title {
  font-size: 0.9375rem;
  font-weight: 700;
  margin: 0 0 16px 0;
  color: var(--spp-ink);
}

.spp-chart-container {
  width: 100%;
  overflow-x: auto;
}

.spp-svg-chart {
  display: block;
  width: 100%;
  max-width: 900px;
  height: auto;
  font-family: system-ui, sans-serif;
}

@media (max-width: 640px) {
  .spp-controls-bar {
    flex-direction: column;
    align-items: stretch;
  }
  .spp-control-group {
    justify-content: space-between;
  }
}

/* tf:dark-palette — generated by migrate_chrome.py */
/* Neutrals inherit the shared chrome tokens so all tools share one
   ground; brand hues are kept and lightened, never inverted. */
[data-theme="dark"] {
  --spp-bg: var(--tf-surface);
  --spp-surface: var(--tf-surface);
  --spp-card: var(--tf-surface);
  --spp-border: #dacf81;
  --spp-line: #dacc81;
  --spp-ink: #cf9159;
  --spp-ink-soft: #d0995c;
  --spp-ink-faint: #dabd81;
  --spp-primary-hover: #d4aa6d;
  --spp-green: #5ed089;
}