/* ===== Summit + Shore Rebate Calculator ===== */
/* Design System: Light mode default, dark mode toggle support */
/* Adobe Typekit fonts: https://use.typekit.net/frr2jth.css */

/* ===== CSS Variables ===== */

:root {
  /* Light Mode Colors (Default) */
  --bg-primary: var(--white);
  --bg-secondary: var(--base-ultra-light);
  --bg-card: var(--white);
  --text-primary: var(--black);
  --text-secondary: var(--base-ultra-dark);
  --border-color: var(--black);
  --neon-yellow: #DBE121;
  --error-red: var(--tertiary);
  
  /* Typography */
  --font-body: 'forma-djr-micro', sans-serif;
  --font-button: 'Anonymous-pro', monospace;
  --font-heading: 'Kallisto', serif;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  
  /* Border Radius */
  --radius-sm: var(--radius);
  --radius-md: var(--radius-m);
  --radius-lg: var(--radius-l);
  --radius-full: var(--radius-circle);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
}

/* Dark Mode Variables */
[data-theme="dark"] {
  --bg-primary: var(--white);
  --bg-secondary: var(--ultra-dark);
  --bg-card: var(--ultra-dark);
  --text-primary: var(--white);
  --text-secondary: var(--ultra-dark);
  --border-color: var(--white);
  --neon-yellow: #DBE121;
}


.calculator-container {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* ===== Container ===== */
.calculator-container {
  width: 100%;
  padding: var(--space-xl) var(--space-md);
}

.calculator-wrapper {
  max-width: 1200px;
  margin: 0 auto;
}

/* ===== Header ===== */
.calc-header {
  margin-bottom: var(--space-xl);
  text-align: center;
  position: relative;
}

.calc-title {
  font-family: var(--font-heading);
  font-size: var(--h3);
  font-weight: 400;
  color: var(--text-primary);
  margin: 0;
  text-align: left;
}

/* Theme Toggle */
.theme-toggle {
  position: absolute;
  top: 0;
  right: 0;
  background: none;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-sm);
  cursor: pointer;
  color: var(--text-primary);
  line-height: 1;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
}

.theme-toggle:hover {
  transform: scale(1.1);
  border-color: var(--neon-yellow);
}

/* ===== Cards ===== */
.calc-card,
.results-card {
  background-color: var(--bg-card);
  border: 3px solid var(--neon-yellow);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-bottom: var(--space-xl);
  transition: background-color var(--transition-normal);
}

.results-card {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--transition-normal), transform var(--transition-normal), background-color var(--transition-normal);
}

.results-card.show {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Sections ===== */
.calc-section {
  margin-bottom: var(--space-xl);
}

.calc-section:last-child {
  margin-bottom: 0;
  margin-top: 60px;
}

/* ===== Mode Selector ===== */
.mode-selector {
  display: inline-flex;
  background-color: var(--bg-secondary);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-full);
  overflow: hidden;
  align-items: stretch;
}

.mode-selector input[type="radio"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.mode-selector label {
  padding: 8px 16px;
  margin: 0;
  cursor: pointer;
  user-select: none;
  font-weight: 400;
  font-size: var(--text-xs);
  color: var(--text-primary);
  border-right: 1px solid var(--border-color);
  transition: background-color var(--transition-fast), color var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
  text-align: center;
  line-height: 100%;
}

.mode-selector label:last-of-type {
  border-right: none;
}

.mode-selector input[type="radio"]:checked + label {
  background-color: var(--neon-yellow);
  color: #000000;
  font-weight: 500;
}

.mode-selector label:hover {
  background-color: rgba(219, 225, 33, 0.2);
}

.mode-selector input[type="radio"]:checked + label:hover {
  background-color: var(--neon-yellow);
}

/* ===== Postcode Section ===== */
.postcode-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  align-items: start;
}

@media (min-width: 768px) {
  .postcode-grid {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
}

.postcode-input-group {
  position: relative;
}

.postcode-input-group.disabled {
  opacity: 0.4;
  pointer-events: none;
}

.input-row {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

@media (min-width: 640px) {
  .input-row {
    flex-wrap: nowrap;
  }
}

/* ===== Postcode Details ===== */
.postcode-details {
  margin-top: 18px;
  background-color: var(--bg-secondary);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: background-color var(--transition-normal);
}

.details-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 48px;
  padding: 12px 16px;
  background: none;
  border: none;
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
  text-align: left;
  transition: background-color var(--transition-fast);
}

.details-header:hover {
  background-color: rgba(219, 225, 33, 0.05);
}

h3.details-title {
    font-size: var(--h5);
    font-weight: 400;
    color: var(--text-primary);
    margin: 0;
    font-family: var(--font-button);
}

.details-toggle {
  color: var(--text-primary);
  font-size: var(--text-xl);
  line-height: 1;
  transition: transform var(--transition-normal);
}

.details-header[aria-expanded="true"] .details-toggle {
  transform: rotate(45deg);
}

.details-content {
  padding: var(--space-md);
  transition: max-height var(--transition-normal), opacity var(--transition-normal);
  overflow: hidden;
}

.details-content.collapsed {
  max-height: 0;
  padding: 0;
  opacity: 0;
}

.detail-row {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-sm);
}

.detail-row:last-child {
  margin-bottom: 0;
}

.detail-label {
  min-width: 120px;
  color: var(--text-primary);
  font-weight: 400;
}

.detail-value {
  flex: 1;
  color: var(--text-primary);
  font-weight: 400;
}

.detail-value strong {
  font-weight: 700;
}

/* ===== Inputs & Labels ===== */
.input-label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: 400;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.calc-input {
  width: 100%;
  min-height: 48px;
  padding: 12px 16px;
  background-color: var(--bg-secondary);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--text-s);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-normal);
}

.calc-input::placeholder {
  color: var(--text-secondary);
}

.calc-input:focus {
  outline: none;
  border-color: var(--neon-yellow);
  box-shadow: 0 0 0 3px rgba(219, 225, 33, 0.2);
}

.calc-input:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Show number input spinners */
.calc-input[type="number"]::-webkit-inner-spin-button,
.calc-input[type="number"]::-webkit-outer-spin-button {
  opacity: 1;
}

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

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  min-height: 48px;
  padding: 12px 24px;
  font-family: var(--font-button);
  font-size: var(--text-s);
  font-weight: 400;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  white-space: nowrap;
  border: 2px solid transparent;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background-color: var(--neon-yellow);
  border-color: var(--neon-yellow);
  color: #000000;
}

.btn-large {
  min-height: 56px;
  padding: 16px 32px;
  font-size: var(--text-s);
  width: 100%;
}

@media (min-width: 640px) {
  .btn-large {
    width: auto;
  }
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn:disabled:hover {
  transform: none;
  box-shadow: none;
}

/* ===== Error Message ===== */
.error-message {
  color: var(--error-red);
  font-size: var(--text-xs);
  margin-top: var(--space-xs);
  min-height: 20px;
}

/* ===== Size Section ===== */
.size-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

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

/* ===== Year Slider ===== */
.year-row {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

@media (min-width: 768px) {
  .year-row {
    flex-direction: row;
    align-items: center;
  }
}

.year-label-group {
  flex: 0 0 auto;
  min-width: 280px;
  position: relative;
}

.year-value {
  font-weight: 500;
  color: var(--text-primary);
  font-size: var(--text-m);
}

.year-help {
  color: var(--error-red);
  font-size: var(--text-xs);
  position: absolute;
  max-width: 280px;
  line-height: 110%;
}

.year-slider-container {
  position: relative;
  flex: 1;
}

.year-slider {
  width: 100%;
  height: 14px;
  border-radius: var(--radius-full);
  background-color: var(--bg-secondary);
  appearance: none;
  cursor: pointer;
  transition: background-color var(--transition-normal);
}

.year-slider::-webkit-slider-runnable-track {
  height: 14px;
  border-radius: var(--radius-full);
  background: transparent;
}

.year-slider::-moz-range-track {
  height: 14px;
  border-radius: var(--radius-full);
  background: transparent;
}

.year-slider::-webkit-slider-thumb {
  appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background-color: var(--neon-yellow);
  border: 2px solid #000000;
  cursor: pointer;
  margin-top: -2px;
  transition: transform var(--transition-fast);
}

.year-slider::-moz-range-thumb {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background-color: var(--neon-yellow);
  border: 2px solid #000000;
  cursor: pointer;
  transition: transform var(--transition-fast);
}

.year-slider::-webkit-slider-thumb:hover {
  transform: scale(1.05);
}

.year-slider::-moz-range-thumb:hover {
  transform: scale(1.05);
}

.year-ticks {
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  margin-top: 12px;
  display: flex;
  justify-content: space-between;
  padding: 0 10px;
}

.year-ticks span {
  position: relative;
  font-size: 0.75rem;
  color: var(--text-secondary);
  flex: 0 0 auto;
}

.year-ticks span:first-child {
  text-align: left;
}

.year-ticks span:last-child {
  text-align: right;
}

.year-ticks span:not(:first-child):not(:last-child) {
  text-align: center;
}

.year-ticks span::before {
  content: "";
  position: absolute;
  top: -10px;
  width: 2px;
  height: 8px;
  background-color: var(--text-secondary);
}

.year-ticks span:first-child::before {
  left: 0;
}

.year-ticks span:last-child::before {
  right: 0;
}

.year-ticks span:not(:first-child):not(:last-child)::before {
  left: 50%;
  transform: translateX(-50%);
}

/* ===== Total Rebate ===== */
.total-rebate {
  background-color: var(--neon-yellow);
  border: 2px solid #000000;
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.total-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

@media (min-width: 768px) {
  .total-content {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.total-left {
  flex: 1;
}

.total-label {
  font-family: var(--font-heading);
  font-size: var(--text-m);
  color: #000000;
  margin-bottom: var(--space-xs);
}

.total-amount {
  font-family: var(--font-heading);
  font-size: var(--h3);
  font-weight: 400;
  color: #000000;
  line-height: 1;
}

.savings-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background-color: #000000;
  color: #ffffff;
  border: 2px solid #000000;
  border-radius: 12px;
  font-family: var(--font-body);
  font-size: var(--text-m);
  line-height: 120%;
}

.savings-badge svg {
  flex-shrink: 0;
}

/* ===== Tables ===== */
.tables-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

@media (min-width: 900px) {
  .tables-container {
    grid-template-columns: 1fr 1fr;
  }
}

.table-wrapper {
  background-color: var(--bg-secondary);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: background-color var(--transition-normal);
}

.table-header {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  padding: var(--space-md);
  border-bottom: 1px solid var(--border-color);
}

@media (min-width: 640px) {
  .table-header {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

h2.table-title {
  font-family: var(--font-heading);
  font-size: var(--text-s);
  font-weight: 400;
  color: var(--text-primary);
  margin: 0;
}

.stc-badge {
  display: inline-flex;
  align-items: center;
  text-wrap: no-wrap;
  flex-wrap: no-wrap;
  gap: var(--space-xs);
  padding: 4px 12px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  transition: background-color var(--transition-normal);
}

.stc-label {
  color: var(--text-secondary);
}

.stc-value {
  color: var(--text-primary);
  font-weight: 700;
}

.table-scroll {
  overflow-x: auto;
}

.rebate-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

.rebate-table th,
.rebate-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
  font-weight: 400;
  font-size: var(--text-xs);
}

.rebate-table th {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  font-weight: 500;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: background-color var(--transition-normal);
}

.rebate-table tbody tr {
  transition: background-color var(--transition-fast);
}

.rebate-table tbody tr:hover {
  background-color: rgba(219, 225, 33, 0.1);
}

.rebate-table tbody tr.highlight {
  background-color: rgba(219, 225, 33, 0.2);
  outline: 2px solid var(--neon-yellow);
  outline-offset: -2px;
}

.rebate-table tbody tr:last-child td {
  border-bottom: none;
}

/* ===== Quote Section ===== */
.quote-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.edit-link {
  font-family: var(--font-body);
  font-size: var(--text-s);
  color: var(--text-primary);
  text-decoration: underline;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.edit-link:hover {
  color: var(--neon-yellow);
}

.edit-link::before {
  content: "↑ ";
  margin-right: 4px;
}

/* ===== Utility Classes ===== */
[hidden] {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ===== Responsive Adjustments ===== */
@media (max-width: 640px) {
  .calculator-container {
    padding: var(--space-md) var(--space-sm);
  }
  
  .calc-card,
  .results-card {
    padding: var(--space-md);
  }
  
  .calc-section {
    margin-bottom: var(--space-lg);
  }
  
  .input-row {
    flex-direction: column;
  }
  
  .calc-input,
  .btn {
    width: 100%;
  }
  
  .theme-toggle {
    width: 36px;
    height: 36px;
    font-size: 1rem;
  }
}



/* ===== Mobile Optimizations ===== */
@media (max-width: 767px) {
  /* Increase container padding on mobile */
  .calculator-container {
    padding: var(--space-lg) var(--space-sm);
  }

  /* Adjust card padding for mobile */
  .calc-card,
  .results-card {
    padding: var(--space-lg);
  }

  /* Optimize header for mobile */
  .calc-header {
    margin-bottom: var(--space-lg);
  }

  .calc-title {
    font-size: var(--h3);
    padding-right: 48px; /* Make room for theme toggle */
  }

  /* Larger touch targets for theme toggle */
  .theme-toggle {
    width: 44px;
    height: 44px;
    font-size: 1.25rem;
  }

  /* Mode selector mobile optimization */
  .mode-selector {
    width: 100%;
    display: flex;
  }

  .mode-selector label {
    flex: 1;
    text-align: center;
    padding: var(--space-md) var(--space-sm);
    font-size: var(--text-xs);
  }

  /* Ensure buttons are full-width on mobile for better touch targets */
  .btn {
    width: 100%;
    min-height: 52px;
    padding: 14px 20px;
    font-size: var(--text-s);
  }

  /* Input fields mobile optimization */
  .calc-input {
    min-height: 52px;
    padding: 14px 16px;
    font-size: var(--text-s);
  }

  /* Accordion header mobile optimization */
  .details-header {
    min-height: 52px;
    padding: var(--space-md);
  }

  /* Remove postcode details top margin on mobile */
  .postcode-details {
    margin-top: 0px;
  }

  .details-title {
    font-size: var(--text-s);
  }

  .details-toggle {
    font-size: var(--text-l);
  }

  /* Table mobile optimization */
  .rebate-table th,
  .rebate-table td {
    padding: 10px 8px;
    font-size: var(--text-xs);
  }

  /* Results banner mobile optimization */
  .total-banner {
    padding: var(--space-lg) var(--space-md);
  }

  .total-amount {
    font-size: var(--h4);
  }

  /* Quote section mobile optimization */
  .quote-section {
    flex-direction: column;
    gap: var(--space-md);
  }

  .quote-section .btn {
    width: 100%;
  }

  .edit-link {
    text-align: center;
    width: 100%;
  }

  /* Year slider mobile optimization */
  .year-value {
    font-size: var(--text-m);
  }

  /* Reduce section spacing on mobile */
  .calc-section {
    margin-bottom: var(--space-lg);
  }

  /* Stack input rows on very small screens */
  @media (max-width: 480px) {
    .input-row {
      flex-direction: column;
    }

    .input-row .calc-input {
      width: 100%;
    }
  }
}

/* Tablet optimization (768px - 1024px) */
@media (min-width: 768px) and (max-width: 1024px) {
  .calculator-container {
    padding: var(--space-xl) var(--space-lg);
  }

  .calc-card,
  .results-card {
    padding: var(--space-xl) var(--space-lg);
  }
}




/* ===== Input Validation ===== */
.input-with-validation {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.input-row.input-with-validation {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.validation-icon {
  position: absolute;
  right: 16px;
  font-size: var(--text-m);
  opacity: 0;
  transition: opacity var(--transition-fast);
  pointer-events: none;
}

.input-row .validation-icon {
  position: relative;
  right: auto;
  flex-shrink: 0;
}

.validation-icon.valid {
  opacity: 1;
  color: var(--neon-yellow);
}

.validation-icon.valid::before {
  content: '✓';
}

.validation-icon.invalid {
  opacity: 1;
  color: #F47A59;
}

.validation-icon.invalid::before {
  content: '✕';
}

.calc-input.valid {
  border-color: var(--neon-yellow);
}

.calc-input.invalid {
  border-color: #F47A59;
}

.validation-message {
  margin-top: var(--space-xs);
  font-size: var(--text-xs);
  color: #F47A59;
  font-family: var(--font-body);
  min-height: 1.25rem;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.validation-message.show {
  opacity: 1;
}




/* Hide Deeming yrs column in solar rebate table */
#solarTableWrapper .rebate-table th:nth-child(2),
#solarTableWrapper .rebate-table td:nth-child(2) {
  display: none;
}




/* Position validation icons away from number input arrows */
input[type="number"] + .validation-icon {
  right: 40px;
}




/* Position postcode validation icon further from right edge */
#postcode + .validation-icon {
  right: 61px;
}