/**
 * Tax Calculator Page Styles
 * Professional, clean, and brand-aligned
 * South African Income Tax Estimator
 */

/* ==========================================================================
   PAGE FOUNDATION
   ========================================================================== */

.tax-calculator-page {
  background-color: var(--green-surface-subtle, #f3faf5);
}

/* Page Title Section */
.page-title-section {
  padding: 140px 0 60px;
  background: linear-gradient(180deg, #0a0f0a 0%, var(--green-900, #1b4332) 100%);
  text-align: center;
}

.page-title-content {
  max-width: 600px;
  margin: 0 auto;
}

.page-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--green-400, #95d5b2);
  margin-bottom: 16px;
}

.page-title-section h1 {
  font-family: var(--heading-font, "Raleway", sans-serif);
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 700;
  color: #ffffff;
  margin: 0 0 16px;
  letter-spacing: -0.025em;
}

.page-subtitle {
  font-size: 1rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.75);
  margin: 0;
}

/* ==========================================================================
   CALCULATOR SECTION
   ========================================================================== */

.tax-calculator-section {
  padding: 60px 0 80px;
}

.calculator-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  max-width: 1000px;
  margin: 0 auto;
}

@media (max-width: 991px) {
  .calculator-wrapper {
    grid-template-columns: 1fr;
    max-width: 540px;
  }
}

/* ==========================================================================
   INPUT PANEL
   ========================================================================== */

.calculator-input-panel {
  background: #ffffff;
  border-radius: 16px;
  padding: 32px;
  box-shadow:
    0 1px 3px rgba(0, 0, 0, 0.04),
    0 4px 20px rgba(27, 67, 50, 0.06);
  border: 1px solid var(--green-100, #e9f5ec);
}

.panel-header {
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--green-100, #e9f5ec);
}

.panel-header h2 {
  font-family: var(--heading-font, "Raleway", sans-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--stone-900, #1c1c1c);
  margin: 0 0 4px;
}

.panel-header p {
  font-size: 0.875rem;
  color: var(--stone-500, #737373);
  margin: 0;
}

/* Form Groups */
.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
}

.label-text {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--stone-800, #292929);
  margin-bottom: 2px;
}

.label-hint {
  display: block;
  font-size: 0.75rem;
  color: var(--stone-400, #a3a3a3);
}

/* Currency Input */
.input-wrapper {
  position: relative;
}

.currency-input {
  display: flex;
  align-items: center;
  background: var(--stone-50, #fafafa);
  border: 2px solid var(--stone-200, #e5e5e5);
  border-radius: 10px;
  transition: all 0.2s ease;
}

.currency-input:focus-within {
  border-color: var(--green-primary, #2d6a4f);
  background: #ffffff;
  box-shadow: 0 0 0 4px rgba(45, 106, 79, 0.1);
}

.currency-symbol {
  padding: 0 4px 0 16px;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--stone-400, #a3a3a3);
}

.currency-input input {
  flex: 1;
  padding: 14px 16px 14px 4px;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--stone-900, #1c1c1c);
  background: transparent;
  border: none;
  outline: none;
  font-family: var(--default-font, "Roboto", sans-serif);
}

.currency-input input::placeholder {
  color: var(--stone-300, #d4d4d4);
}

/* Toggle Group */
.toggle-group {
  display: flex;
  gap: 8px;
  padding: 4px;
  background: var(--stone-100, #f5f5f5);
  border-radius: 10px;
}

.toggle-btn {
  flex: 1;
  padding: 12px 16px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--stone-600, #525252);
  background: transparent;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.toggle-btn:hover:not(.active) {
  background: rgba(255, 255, 255, 0.5);
  color: var(--stone-800, #292929);
}

.toggle-btn.active {
  background: #ffffff;
  color: var(--green-primary, #2d6a4f);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

/* Select Wrapper */
.select-wrapper {
  position: relative;
}

.select-wrapper select {
  width: 100%;
  padding: 14px 44px 14px 16px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--stone-800, #292929);
  background: var(--stone-50, #fafafa);
  border: 2px solid var(--stone-200, #e5e5e5);
  border-radius: 10px;
  cursor: pointer;
  appearance: none;
  transition: all 0.2s ease;
}

.select-wrapper select:focus {
  border-color: var(--green-primary, #2d6a4f);
  background: #ffffff;
  outline: none;
  box-shadow: 0 0 0 4px rgba(45, 106, 79, 0.1);
}

.select-wrapper i {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--stone-400, #a3a3a3);
  pointer-events: none;
}

/* Optional Section */
.optional-section {
  margin-bottom: 28px;
}

.optional-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 16px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--stone-600, #525252);
  background: var(--stone-50, #fafafa);
  border: 1px dashed var(--stone-300, #d4d4d4);
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.optional-toggle:hover {
  border-color: var(--green-primary, #2d6a4f);
  color: var(--green-primary, #2d6a4f);
}

.optional-toggle[aria-expanded="true"] {
  border-style: solid;
  border-color: var(--green-200, #d8f3dc);
  background: var(--green-50, #f3faf5);
  color: var(--green-primary, #2d6a4f);
}

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

.optional-badge {
  margin-left: auto;
  padding: 2px 8px;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--stone-400, #a3a3a3);
  background: var(--stone-200, #e5e5e5);
  border-radius: 4px;
}

.optional-toggle i {
  transition: transform 0.2s ease;
}

.optional-content {
  overflow: hidden;
  transition: all 0.3s ease;
}

.optional-inner {
  padding: 20px 16px 8px;
}

/* Stepper Input */
.stepper-input {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 160px;
}

.stepper-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
  color: var(--stone-600, #525252);
  background: var(--stone-100, #f5f5f5);
  border: 1px solid var(--stone-200, #e5e5e5);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.stepper-btn:hover {
  background: var(--green-100, #e9f5ec);
  border-color: var(--green-200, #d8f3dc);
  color: var(--green-primary, #2d6a4f);
}

.stepper-input input {
  width: 60px;
  padding: 10px 8px;
  font-size: 1.125rem;
  font-weight: 600;
  text-align: center;
  color: var(--stone-900, #1c1c1c);
  background: #ffffff;
  border: 2px solid var(--stone-200, #e5e5e5);
  border-radius: 8px;
}

.stepper-input input:focus {
  border-color: var(--green-primary, #2d6a4f);
  outline: none;
}

/* Calculate Button */
.calculate-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 24px;
  font-size: 1rem;
  font-weight: 600;
  color: #ffffff;
  background: var(--green-primary, #2d6a4f);
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.25s ease;
  box-shadow: 0 4px 16px rgba(45, 106, 79, 0.25);
}

.calculate-btn:hover {
  background: var(--green-primary-hover, #1b4332);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(45, 106, 79, 0.35);
}

.calculate-btn i {
  font-size: 1.125rem;
  transition: transform 0.2s ease;
}

.calculate-btn:hover i {
  transform: translateX(4px);
}

/* ==========================================================================
   RESULTS PANEL
   ========================================================================== */

.calculator-results-panel {
  background: #ffffff;
  border-radius: 16px;
  padding: 32px;
  box-shadow:
    0 1px 3px rgba(0, 0, 0, 0.04),
    0 4px 20px rgba(27, 67, 50, 0.06);
  border: 1px solid var(--green-100, #e9f5ec);
  display: flex;
  flex-direction: column;
  min-height: 480px;
}

/* Empty State */
.results-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 20px;
}

.empty-icon {
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--green-50, #f3faf5);
  border-radius: 50%;
  margin-bottom: 24px;
}

.empty-icon i {
  font-size: 2rem;
  color: var(--green-400, #95d5b2);
}

.results-empty h3 {
  font-family: var(--heading-font, "Raleway", sans-serif);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--stone-800, #292929);
  margin: 0 0 8px;
}

.results-empty p {
  font-size: 0.875rem;
  color: var(--stone-500, #737373);
  line-height: 1.6;
  margin: 0;
  max-width: 280px;
}

/* Results Content */
.results-content {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--green-100, #e9f5ec);
}

.results-header h3 {
  font-family: var(--heading-font, "Raleway", sans-serif);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--stone-900, #1c1c1c);
  margin: 0;
}

.tax-year-badge {
  padding: 4px 10px;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--green-primary, #2d6a4f);
  background: var(--green-100, #e9f5ec);
  border-radius: 6px;
}

/* Primary Result */
.result-primary {
  text-align: center;
  padding: 24px 16px;
  background: linear-gradient(135deg, var(--green-50, #f3faf5) 0%, var(--green-100, #e9f5ec) 100%);
  border-radius: 12px;
  margin-bottom: 24px;
}

.result-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--stone-500, #737373);
  margin-bottom: 8px;
}

.result-value {
  font-family: var(--heading-font, "Raleway", sans-serif);
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  color: var(--green-900, #1b4332);
  letter-spacing: -0.025em;
  margin-bottom: 4px;
}

.result-sublabel {
  font-size: 0.875rem;
  color: var(--stone-500, #737373);
}

.result-sublabel span {
  font-weight: 600;
  color: var(--stone-700, #404040);
}

/* Result Breakdown */
.result-breakdown {
  padding: 16px 0;
}

.breakdown-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
}

.breakdown-label {
  font-size: 0.875rem;
  color: var(--stone-600, #525252);
}

.breakdown-value {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--stone-800, #292929);
  font-variant-numeric: tabular-nums;
}

.breakdown-item.highlight-green .breakdown-value {
  color: var(--green-700, #40916c);
}

.breakdown-divider {
  height: 1px;
  background: var(--stone-200, #e5e5e5);
  margin: 8px 0;
}

.breakdown-item.total {
  padding-top: 12px;
}

.breakdown-item.total .breakdown-label {
  font-weight: 600;
  color: var(--stone-800, #292929);
}

.breakdown-item.total .breakdown-value {
  font-size: 1.125rem;
  color: var(--stone-900, #1c1c1c);
}

/* Take-Home Section */
.take-home-section {
  background: var(--stone-50, #fafafa);
  border-radius: 10px;
  padding: 16px;
  margin-top: auto;
  margin-bottom: 16px;
}

.take-home-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--stone-600, #525252);
  margin-bottom: 12px;
}

.take-home-header i {
  color: var(--green-primary, #2d6a4f);
}

.take-home-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.take-home-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.take-home-label {
  font-size: 0.6875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--stone-400, #a3a3a3);
}

.take-home-value {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--green-800, #2d6a4f);
  font-variant-numeric: tabular-nums;
}

/* Effective Rate */
.effective-rate-section {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 16px;
  background: var(--stone-50, #fafafa);
  border-radius: 10px;
  margin-bottom: 20px;
}

.rate-visual {
  flex: 1;
}

.rate-bar {
  height: 8px;
  background: var(--stone-200, #e5e5e5);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 4px;
}

.rate-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--green-500, #74c69d) 0%, var(--green-primary, #2d6a4f) 100%);
  border-radius: 4px;
  transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.rate-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.625rem;
  color: var(--stone-400, #a3a3a3);
}

.rate-info {
  text-align: right;
  min-width: 80px;
}

.rate-label {
  display: block;
  font-size: 0.6875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--stone-500, #737373);
  margin-bottom: 2px;
}

.rate-value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--stone-900, #1c1c1c);
}

/* Recalculate Button */
.recalculate-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--stone-600, #525252);
  background: #ffffff;
  border: 1px solid var(--stone-200, #e5e5e5);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.recalculate-btn:hover {
  color: var(--green-primary, #2d6a4f);
  border-color: var(--green-200, #d8f3dc);
  background: var(--green-50, #f3faf5);
}

.recalculate-btn i {
  font-size: 1rem;
}

/* ==========================================================================
   TAX BRACKETS SECTION
   ========================================================================== */

.tax-brackets-section {
  max-width: 1000px;
  margin: 48px auto 0;
}

.brackets-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--stone-700, #404040);
  background: #ffffff;
  border: 1px solid var(--stone-200, #e5e5e5);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.brackets-toggle:hover {
  border-color: var(--green-200, #d8f3dc);
  color: var(--green-primary, #2d6a4f);
}

.brackets-toggle[aria-expanded="true"] {
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
  border-color: var(--green-200, #d8f3dc);
}

.brackets-toggle-text {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brackets-toggle-text i {
  color: var(--green-primary, #2d6a4f);
}

.brackets-chevron {
  transition: transform 0.2s ease;
}

.brackets-toggle[aria-expanded="true"] .brackets-chevron {
  transform: rotate(180deg);
}

.brackets-content {
  background: #ffffff;
  border: 1px solid var(--green-200, #d8f3dc);
  border-top: none;
  border-radius: 0 0 12px 12px;
  overflow: hidden;
}

.brackets-table-wrapper {
  overflow-x: auto;
}

.brackets-table {
  width: 100%;
  border-collapse: collapse;
}

.brackets-table th,
.brackets-table td {
  padding: 14px 20px;
  text-align: left;
  font-size: 0.875rem;
}

.brackets-table th {
  font-weight: 600;
  color: var(--stone-700, #404040);
  background: var(--green-50, #f3faf5);
  border-bottom: 1px solid var(--green-100, #e9f5ec);
}

.brackets-table td {
  color: var(--stone-600, #525252);
  border-bottom: 1px solid var(--stone-100, #f5f5f5);
}

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

.brackets-table tr:hover td {
  background: var(--green-50, #f3faf5);
}

.brackets-rebates {
  padding: 20px;
  background: var(--stone-50, #fafafa);
  border-top: 1px solid var(--stone-200, #e5e5e5);
}

.brackets-rebates h4 {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--stone-800, #292929);
  margin: 0 0 16px;
}

.rebates-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.rebate-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.rebate-label {
  font-size: 0.75rem;
  color: var(--stone-500, #737373);
}

.rebate-value {
  font-size: 1rem;
  font-weight: 700;
  color: var(--green-800, #2d6a4f);
}

@media (max-width: 639px) {
  .rebates-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .rebate-item {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

/* ==========================================================================
   DISCLAIMER SECTION
   ========================================================================== */

.disclaimer-section {
  max-width: 1000px;
  margin: 32px auto 0;
}

.disclaimer-content {
  display: flex;
  gap: 16px;
  padding: 20px 24px;
  background: #ffffff;
  border-radius: 12px;
  border-left: 4px solid var(--green-400, #95d5b2);
}

.disclaimer-content > i {
  font-size: 1.25rem;
  color: var(--green-primary, #2d6a4f);
  flex-shrink: 0;
  margin-top: 2px;
}

.disclaimer-text p {
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--stone-600, #525252);
  margin: 0 0 8px;
}

.disclaimer-text p:last-child {
  margin-bottom: 0;
}

.disclaimer-text strong {
  color: var(--stone-800, #292929);
}

.disclaimer-text a {
  color: var(--green-primary, #2d6a4f);
  text-decoration: none;
  font-weight: 500;
}

.disclaimer-text a:hover {
  text-decoration: underline;
}

/* ==========================================================================
   CTA SECTION
   ========================================================================== */

.tax-cta-section {
  padding: 80px 0;
  background: linear-gradient(180deg, var(--green-surface-subtle, #f3faf5) 0%, var(--green-100, #e9f5ec) 100%);
}

.cta-content {
  text-align: center;
  max-width: 540px;
  margin: 0 auto;
}

.cta-content h2 {
  font-family: var(--heading-font, "Raleway", sans-serif);
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  color: var(--stone-900, #1c1c1c);
  margin: 0 0 16px;
}

.cta-content p {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--stone-600, #525252);
  margin: 0 0 28px;
}

.tax-cta-section .cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 32px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: #ffffff;
  background: var(--green-primary, #2d6a4f);
  border-radius: 10px;
  text-decoration: none;
  transition: all 0.25s ease;
  box-shadow: 0 4px 16px rgba(45, 106, 79, 0.25);
}

.tax-cta-section .cta-btn:hover {
  background: var(--green-primary-hover, #1b4332);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(45, 106, 79, 0.35);
}

.tax-cta-section .cta-btn i {
  font-size: 1.125rem;
  transition: transform 0.2s ease;
}

.tax-cta-section .cta-btn:hover i {
  transform: translateX(4px);
}

/* ==========================================================================
   RESPONSIVE ADJUSTMENTS
   ========================================================================== */

@media (max-width: 767px) {
  .page-title-section {
    padding: 120px 0 48px;
  }

  .tax-calculator-section {
    padding: 40px 0 60px;
  }

  .calculator-input-panel,
  .calculator-results-panel {
    padding: 24px;
  }

  .calculator-results-panel {
    min-height: auto;
  }

  .result-breakdown {
    padding: 12px 0;
  }

  .brackets-table th,
  .brackets-table td {
    padding: 12px 16px;
    font-size: 0.8125rem;
  }

  .disclaimer-content {
    flex-direction: column;
    gap: 12px;
    padding: 16px;
  }

  .tax-cta-section {
    padding: 60px 0;
  }
}

@media (max-width: 480px) {
  .effective-rate-section {
    flex-direction: column;
    gap: 16px;
  }

  .rate-info {
    text-align: center;
    width: 100%;
  }

  .take-home-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .take-home-item {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

/* ==========================================================================
   ANIMATIONS & STATES
   ========================================================================== */

/* Calculating state */
.calculating .calculate-btn {
  pointer-events: none;
  opacity: 0.7;
}

.calculating .calculate-btn span::after {
  content: '...';
  animation: ellipsis 1.5s infinite;
}

@keyframes ellipsis {
  0%, 20% { content: '.'; }
  40% { content: '..'; }
  60%, 100% { content: '...'; }
}

/* Results animation */
.results-content.animate-in .result-primary {
  animation: slideUpFade 0.4s ease-out;
}

.results-content.animate-in .result-breakdown {
  animation: slideUpFade 0.4s ease-out 0.1s both;
}

.results-content.animate-in .take-home-section {
  animation: slideUpFade 0.4s ease-out 0.2s both;
}

.results-content.animate-in .effective-rate-section {
  animation: slideUpFade 0.4s ease-out 0.3s both;
}

@keyframes slideUpFade {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Focus visible states */
.toggle-btn:focus-visible,
.stepper-btn:focus-visible,
.optional-toggle:focus-visible,
.brackets-toggle:focus-visible {
  outline: 3px solid var(--green-primary, #2d6a4f);
  outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .rate-fill {
    transition: none;
  }

  .results-content.animate-in .result-primary,
  .results-content.animate-in .result-breakdown,
  .results-content.animate-in .take-home-section,
  .results-content.animate-in .effective-rate-section {
    animation: none;
  }
}