/* =============================================
   UK TAX CALCULATOR - CalcTechLab
   Professional, comprehensive tax calculator
   Supports light/dark theme via CSS variables
   ============================================= */

/* =============================================
   CSS VARIABLES (Tax-specific)
   ============================================= */
.tax-app {
    --tax-primary: #1a56db;
    --tax-primary-light: #e8effd;
    --tax-primary-dark: #1240a8;
    --tax-success: #059669;
    --tax-success-light: #ecfdf5;
    --tax-danger: #dc2626;
    --tax-danger-light: #fef2f2;
    --tax-warning: #d97706;
    --tax-warning-light: #fffbeb;
    --tax-info: #0891b2;
    --tax-info-light: #ecfeff;
    --tax-purple: #7c3aed;
    --tax-purple-light: #f5f3ff;
    --tax-pink: #db2777;

    --tax-bar-tax: #dc2626;
    --tax-bar-ni: #d97706;
    --tax-bar-student: #0891b2;
    --tax-bar-pension: #7c3aed;
    --tax-bar-net: #059669;

    --tax-radius-sm: 6px;
    --tax-radius-md: 10px;
    --tax-radius-lg: 14px;
    --tax-radius-xl: 18px;
    --tax-radius-full: 50px;

    --tax-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --tax-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --tax-shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
    --tax-shadow-xl: 0 12px 40px rgba(0, 0, 0, 0.15);

    --tax-transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);

    padding: 1.5rem;
    max-width: 100%;
}

/* =============================================
   DARK THEME OVERRIDES
   ============================================= */
[data-theme="dark"] .tax-app,
.dark-mode .tax-app {
    --tax-primary: #60a5fa;
    --tax-primary-light: #1e3a5f;
    --tax-primary-dark: #93bbfd;
    --tax-success: #34d399;
    --tax-success-light: #0d3326;
    --tax-danger: #f87171;
    --tax-danger-light: #3b1515;
    --tax-warning: #fbbf24;
    --tax-warning-light: #3b2e0a;
    --tax-info: #22d3ee;
    --tax-info-light: #0a2e33;
    --tax-purple: #a78bfa;
    --tax-purple-light: #2a1f4e;

    --tax-bar-tax: #f87171;
    --tax-bar-ni: #fbbf24;
    --tax-bar-student: #22d3ee;
    --tax-bar-pension: #a78bfa;
    --tax-bar-net: #34d399;
}

/* =============================================
   CARD COMPONENT
   ============================================= */
.tax-card {
    background: var(--bg-card, #ffffff);
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: var(--tax-radius-lg);
    padding: 1.75rem;
    margin-bottom: 1.25rem;
    transition: box-shadow var(--tax-transition);
}

.tax-card:hover {
    box-shadow: var(--tax-shadow-sm);
}

.tax-card-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary, #111827);
    margin: 0 0 1.25rem 0;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--border-color, #e5e7eb);
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.tax-card-title i {
    color: var(--tax-primary);
    font-size: 1.1rem;
}

.tax-card-subtitle {
    font-size: 0.875rem;
    color: var(--text-muted, #6b7280);
    margin: -0.75rem 0 1rem 0;
}

/* =============================================
   FORM FIELDS
   ============================================= */
.tax-field {
    margin-bottom: 1.25rem;
}

.tax-field:last-child {
    margin-bottom: 0;
}

.tax-field label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary, #111827);
    margin-bottom: 0.5rem;
}

.tax-field-hint {
    display: block;
    font-size: 0.78rem;
    color: var(--text-muted, #6b7280);
    margin-top: 0.35rem;
}

.tax-field-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

/* Input wrapper */
.tax-input-wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.tax-input-prefix {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    font-size: 1rem;
    font-weight: 700;
    color: var(--tax-primary);
    background: var(--bg-secondary, #f9fafb);
    border: 1px solid var(--border-color, #e5e7eb);
    border-right: none;
    border-radius: var(--tax-radius-md) 0 0 var(--tax-radius-md);
    pointer-events: none;
}

.tax-input-suffix {
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--tax-primary);
    background: var(--bg-secondary, #f9fafb);
    border: 1px solid var(--border-color, #e5e7eb);
    border-left: none;
    border-radius: 0 var(--tax-radius-md) var(--tax-radius-md) 0;
    pointer-events: none;
}

.tax-input {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary, #111827);
    background: var(--bg-card, #ffffff);
    border: 1.5px solid var(--border-color, #e5e7eb);
    border-radius: var(--tax-radius-md);
    outline: none;
    transition: all var(--tax-transition);
    -moz-appearance: textfield;
}

.tax-input::-webkit-outer-spin-button,
.tax-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.tax-input-wrap .tax-input {
    padding-left: 52px;
}

.tax-input-wrap .tax-input-suffix ~ .tax-input,
.tax-input-wrap .tax-input:has(~ .tax-input-suffix) {
    padding-right: 52px;
}

/* Fix: when suffix exists, input needs right padding */
.tax-input-wrap:has(.tax-input-suffix) .tax-input {
    padding-right: 52px;
    padding-left: 1rem;
}

/* Fix: when prefix exists */
.tax-input-wrap:has(.tax-input-prefix) .tax-input {
    padding-left: 52px;
}

/* Fix: when both exist */
.tax-input-wrap:has(.tax-input-prefix):has(.tax-input-suffix) .tax-input {
    padding-left: 52px;
    padding-right: 52px;
}

.tax-input:focus {
    border-color: var(--tax-primary);
    box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.15);
}

.tax-input-lg {
    font-size: 1.35rem;
    font-weight: 700;
    padding: 1rem 1rem 1rem 52px;
    letter-spacing: -0.01em;
}

.tax-select {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary, #111827);
    background: var(--bg-card, #ffffff);
    border: 1.5px solid var(--border-color, #e5e7eb);
    border-radius: var(--tax-radius-md);
    outline: none;
    cursor: pointer;
    transition: all var(--tax-transition);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 8.825L0.375 3.2l.85-.85L6 7.125 10.775 2.35l.85.85z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

.tax-select:focus {
    border-color: var(--tax-primary);
    box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.15);
}

/* =============================================
   FREQUENCY LABEL
   ============================================= */
.tax-freq-label {
    font-weight: 400;
    font-size: 0.85rem;
    color: var(--text-muted, #6b7280);
}

/* =============================================
   TOGGLE BUTTONS (Region, Pension Type)
   ============================================= */
.tax-toggle-group {
    display: flex;
    gap: 0;
    border: 1.5px solid var(--border-color, #e5e7eb);
    border-radius: var(--tax-radius-md);
    overflow: hidden;
    background: var(--bg-secondary, #f9fafb);
}

.tax-toggle-btn {
    flex: 1;
    padding: 0.65rem 1rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary, #4b5563);
    background: transparent;
    border: none;
    cursor: pointer;
    transition: all var(--tax-transition);
    white-space: nowrap;
    text-align: center;
}

.tax-toggle-btn:not(:last-child) {
    border-right: 1.5px solid var(--border-color, #e5e7eb);
}

.tax-toggle-btn:hover {
    background: var(--bg-tertiary, #f3f4f6);
    color: var(--text-primary, #111827);
}

.tax-toggle-btn.tax-toggle-active {
    background: var(--tax-primary);
    color: #ffffff;
}

.tax-toggle-sm .tax-toggle-btn {
    padding: 0.55rem 0.75rem;
    font-size: 0.8rem;
}

/* =============================================
   FREQUENCY BUTTONS
   ============================================= */
.tax-freq-group {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tax-freq-btn {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary, #4b5563);
    background: var(--bg-secondary, #f9fafb);
    border: 1.5px solid var(--border-color, #e5e7eb);
    border-radius: var(--tax-radius-full);
    cursor: pointer;
    transition: all var(--tax-transition);
}

.tax-freq-btn:hover {
    border-color: var(--tax-primary);
    color: var(--tax-primary);
    background: var(--tax-primary-light);
}

.tax-freq-btn.tax-freq-active {
    background: var(--tax-primary);
    color: #ffffff;
    border-color: var(--tax-primary);
}

/* =============================================
   QUICK PRESETS
   ============================================= */
.tax-presets {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px dashed var(--border-color, #e5e7eb);
}

.tax-preset-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted, #6b7280);
    margin-right: 0.25rem;
}

.tax-preset-btn {
    padding: 0.35rem 0.75rem;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-secondary, #4b5563);
    background: var(--bg-secondary, #f9fafb);
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: var(--tax-radius-full);
    cursor: pointer;
    transition: all var(--tax-transition);
}

.tax-preset-btn:hover {
    background: var(--tax-primary);
    color: #ffffff;
    border-color: var(--tax-primary);
    transform: translateY(-1px);
}

.tax-pension-presets {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-top: 0.75rem;
}

.tax-pension-preset {
    padding: 0.3rem 0.7rem;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-secondary, #4b5563);
    background: var(--bg-secondary, #f9fafb);
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: var(--tax-radius-full);
    cursor: pointer;
    transition: all var(--tax-transition);
}

.tax-pension-preset:hover {
    background: var(--tax-purple);
    color: #ffffff;
    border-color: var(--tax-purple);
}

/* =============================================
   STUDENT LOAN GRID
   ============================================= */
.tax-loan-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 0.75rem;
}

.tax-loan-item {
    position: relative;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.85rem 1rem;
    background: var(--bg-secondary, #f9fafb);
    border: 1.5px solid var(--border-color, #e5e7eb);
    border-radius: var(--tax-radius-md);
    cursor: pointer;
    transition: all var(--tax-transition);
}

.tax-loan-item:hover {
    border-color: var(--tax-info);
    background: var(--tax-info-light);
}

.tax-loan-item.tax-loan-selected {
    border-color: var(--tax-info);
    background: var(--tax-info-light);
    box-shadow: 0 0 0 2px rgba(8, 145, 178, 0.2);
}

.tax-loan-checkbox {
    width: 18px;
    height: 18px;
    margin-top: 2px;
    accent-color: var(--tax-info);
    cursor: pointer;
    flex-shrink: 0;
}

.tax-loan-info {
    flex: 1;
    min-width: 0;
}

.tax-loan-name {
    display: block;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-primary, #111827);
    margin-bottom: 0.15rem;
}

.tax-loan-detail {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted, #6b7280);
    line-height: 1.3;
}

.tax-loan-none {
    font-size: 0.85rem;
    color: var(--tax-success);
    font-weight: 500;
    margin-top: 0.5rem;
}

/* =============================================
   SWITCH TOGGLES (Marriage, Blind)
   ============================================= */
.tax-allowance-grid {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.tax-switch-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem 1.25rem;
    background: var(--bg-secondary, #f9fafb);
    border: 1.5px solid var(--border-color, #e5e7eb);
    border-radius: var(--tax-radius-md);
    cursor: pointer;
    transition: all var(--tax-transition);
}

.tax-switch-label:hover {
    border-color: var(--tax-primary);
    background: var(--tax-primary-light);
}

.tax-switch-info {
    flex: 1;
}

.tax-switch-info strong {
    display: block;
    font-size: 0.9rem;
    color: var(--text-primary, #111827);
    margin-bottom: 0.15rem;
}

.tax-switch-info span {
    display: block;
    font-size: 0.78rem;
    color: var(--text-muted, #6b7280);
}

.tax-switch {
    position: relative;
    width: 48px;
    height: 26px;
    flex-shrink: 0;
}

.tax-switch input {
    opacity: 0;
    width: 0;
    height: 0;
    position: absolute;
}

.tax-switch-slider {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--border-color, #d1d5db);
    border-radius: 26px;
    transition: all var(--tax-transition);
    cursor: pointer;
}

.tax-switch-slider::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    left: 3px;
    bottom: 3px;
    background: #ffffff;
    border-radius: 50%;
    transition: all var(--tax-transition);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.tax-switch input:checked + .tax-switch-slider {
    background: var(--tax-primary);
}

.tax-switch input:checked + .tax-switch-slider::before {
    transform: translateX(22px);
}

.tax-switch input:focus + .tax-switch-slider {
    box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.2);
}

/* =============================================
   CALCULATE BUTTON
   ============================================= */
.tax-calculate-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 1.1rem 2rem;
    font-size: 1.15rem;
    font-weight: 700;
    color: #ffffff;
    background: linear-gradient(135deg, var(--tax-primary) 0%, var(--tax-primary-dark) 100%);
    border: none;
    border-radius: var(--tax-radius-lg);
    cursor: pointer;
    transition: all var(--tax-transition);
    box-shadow: var(--tax-shadow-md);
    margin-bottom: 1.25rem;
    letter-spacing: 0.01em;
}

.tax-calculate-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--tax-shadow-lg);
    filter: brightness(1.08);
}

.tax-calculate-btn:active {
    transform: translateY(0);
    box-shadow: var(--tax-shadow-sm);
}

.tax-calculate-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.tax-calculate-btn .spinner {
    display: none;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: taxSpin 0.6s linear infinite;
    margin-right: 0.5rem;
}

.tax-calculate-btn.loading .spinner {
    display: inline-block;
}

.tax-calculate-btn.loading i {
    display: none;
}

@keyframes taxSpin {
    to { transform: rotate(360deg); }
}

/* =============================================
   RECALCULATE BUTTON
   ============================================= */
.tax-recalculate-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 0.9rem 2rem;
    font-size: 1rem;
    font-weight: 700;
    color: var(--tax-primary);
    background: var(--tax-primary-light);
    border: 2px solid var(--tax-primary);
    border-radius: var(--tax-radius-lg);
    cursor: pointer;
    transition: all var(--tax-transition);
    margin-top: 0.5rem;
}

.tax-recalculate-btn:hover {
    background: var(--tax-primary);
    color: #ffffff;
    transform: translateY(-1px);
}

/* =============================================
   RESULTS - SUMMARY CARD
   ============================================= */
.tax-summary-card {
    background: linear-gradient(135deg, var(--tax-primary) 0%, #2563eb 50%, #1d4ed8 100%);
    color: #ffffff;
    border: none;
    box-shadow: var(--tax-shadow-lg);
}

.tax-summary-card .tax-card-title {
    color: #ffffff;
    border-bottom-color: rgba(255, 255, 255, 0.2);
}

.tax-summary-card .tax-card-title i {
    color: rgba(255, 255, 255, 0.9);
}

.tax-summary-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
}

.tax-summary-year {
    font-size: 0.8rem;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.2);
    padding: 0.3rem 0.75rem;
    border-radius: var(--tax-radius-full);
    white-space: nowrap;
    margin-top: 0.1rem;
}

.tax-summary-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.tax-summary-item {
    text-align: center;
    padding: 1rem 0.5rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--tax-radius-md);
    backdrop-filter: blur(4px);
}

.tax-summary-item.tax-summary-main {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.tax-summary-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 500;
    opacity: 0.85;
    margin-bottom: 0.35rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.tax-summary-value {
    display: block;
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.tax-summary-main .tax-summary-value {
    font-size: 1.6rem;
}

/* =============================================
   COMPARISON BAR
   ============================================= */
.tax-comparison-bar {
    margin-bottom: 1.5rem;
}

.tax-bar-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.78rem;
    margin-bottom: 0.5rem;
    opacity: 0.9;
}

.tax-bar-labels strong {
    font-weight: 700;
}

.tax-bar-track {
    display: flex;
    height: 28px;
    border-radius: var(--tax-radius-full);
    overflow: hidden;
    background: rgba(255, 255, 255, 0.15);
}

.tax-bar-segment {
    height: 100%;
    transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    min-width: 0;
}

.tax-bar-tax { background: var(--tax-bar-tax); }
.tax-bar-ni { background: var(--tax-bar-ni); }
.tax-bar-student { background: var(--tax-bar-student); }
.tax-bar-pension { background: var(--tax-bar-pension); }
.tax-bar-net { background: var(--tax-bar-net); }

.tax-bar-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 0.75rem;
    font-size: 0.75rem;
    opacity: 0.9;
}

.tax-legend-item {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

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

.tax-dot-tax { background: var(--tax-bar-tax); }
.tax-dot-ni { background: var(--tax-bar-ni); }
.tax-dot-student { background: var(--tax-bar-student); }
.tax-dot-pension { background: var(--tax-bar-pension); }
.tax-dot-net { background: var(--tax-bar-net); }

/* =============================================
   TAX RATES BADGES
   ============================================= */
.tax-rates-row {
    display: flex;
    gap: 1rem;
}

.tax-rate-badge {
    flex: 1;
    text-align: center;
    padding: 0.85rem;
    background: rgba(255, 255, 255, 0.12);
    border-radius: var(--tax-radius-md);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.tax-rate-label {
    display: block;
    font-size: 0.72rem;
    font-weight: 500;
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}

.tax-rate-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 800;
}

/* =============================================
   TABS
   ============================================= */
.tax-tabs {
    display: flex;
    gap: 0;
    border-bottom: 2px solid var(--border-color, #e5e7eb);
    margin: -1.75rem -1.75rem 1.5rem -1.75rem;
    padding: 0 1.75rem;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.tax-tab {
    padding: 0.85rem 1.25rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted, #6b7280);
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    transition: all var(--tax-transition);
    white-space: nowrap;
    margin-bottom: -2px;
}

.tax-tab:hover {
    color: var(--text-primary, #111827);
    background: var(--bg-secondary, #f9fafb);
}

.tax-tab.tax-tab-active {
    color: var(--tax-primary);
    border-bottom-color: var(--tax-primary);
}

.tax-tab-content {
    display: none;
    animation: taxFadeIn 0.3s ease;
}

.tax-tab-content.tax-tab-visible {
    display: block;
}

@keyframes taxFadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* =============================================
   TABLES
   ============================================= */
.tax-overview-table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 0 -0.5rem;
    padding: 0 0.5rem;
}

.tax-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.tax-table th {
    padding: 0.75rem 1rem;
    text-align: right;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--text-muted, #6b7280);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 2px solid var(--border-color, #e5e7eb);
}

.tax-table th:first-child {
    text-align: left;
}

.tax-table td {
    padding: 0.75rem 1rem;
    text-align: right;
    color: var(--text-primary, #111827);
    border-bottom: 1px solid var(--border-color, #e5e7eb);
}

.tax-table td:first-child {
    text-align: left;
    font-weight: 500;
}

.tax-table tbody tr:hover {
    background: var(--bg-secondary, #f9fafb);
}

.tax-table tfoot td {
    border-bottom: none;
    border-top: 2px solid var(--border-color, #e5e7eb);
    padding-top: 1rem;
}

/* Row types */
.tax-row-gross td {
    color: var(--tax-success);
    font-weight: 600;
}

.tax-row-allowance td {
    color: var(--text-muted, #6b7280);
    font-style: italic;
}

.tax-row-taxable td {
    color: var(--text-secondary, #4b5563);
}

.tax-row-deduction td {
    color: var(--tax-danger);
}

.tax-row-total td {
    font-weight: 700;
    color: var(--text-primary, #111827);
    background: var(--bg-secondary, #f9fafb);
}

.tax-row-net td {
    font-weight: 700;
    color: var(--tax-success);
    font-size: 1rem;
    background: var(--tax-success-light);
}

/* Band region label */
.tax-band-region {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--tax-primary);
    background: var(--tax-primary-light);
    padding: 0.5rem 1rem;
    border-radius: var(--tax-radius-md);
    margin-bottom: 1rem;
    display: inline-block;
}

/* =============================================
   TAX BAND VISUAL BAR
   ============================================= */
.tax-band-visual {
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px dashed var(--border-color, #e5e7eb);
}

.tax-band-bar-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.tax-band-bar-label {
    width: 120px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-secondary, #4b5563);
    text-align: right;
    flex-shrink: 0;
}

.tax-band-bar-track {
    flex: 1;
    height: 22px;
    background: var(--bg-secondary, #f9fafb);
    border-radius: var(--tax-radius-full);
    overflow: hidden;
    position: relative;
}

.tax-band-bar-fill {
    height: 100%;
    border-radius: var(--tax-radius-full);
    transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: 8px;
    font-size: 0.7rem;
    font-weight: 700;
    color: #ffffff;
    min-width: 0;
}

.tax-band-bar-fill.band-basic { background: #3b82f6; }
.tax-band-bar-fill.band-higher { background: #f59e0b; }
.tax-band-bar-fill.band-additional { background: #ef4444; }
.tax-band-bar-fill.band-starter { background: #06b6d4; }
.tax-band-bar-fill.band-intermediate { background: #8b5cf6; }
.tax-band-bar-fill.band-advanced { background: #ec4899; }
.tax-band-bar-fill.band-top { background: #dc2626; }
.tax-band-bar-fill.band-default { background: var(--tax-primary); }

.tax-band-bar-amount {
    width: 90px;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--text-primary, #111827);
    text-align: right;
    flex-shrink: 0;
}

/* =============================================
   OTHER DEDUCTIONS TAB
   ============================================= */
.tax-other-block {
    margin-bottom: 2rem;
}

.tax-other-block:last-child {
    margin-bottom: 0;
}

.tax-other-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary, #111827);
    margin-bottom: 1rem;
}

.tax-pension-summary {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.75rem;
}

.tax-pension-stat {
    text-align: center;
    padding: 1rem;
    background: var(--bg-secondary, #f9fafb);
    border-radius: var(--tax-radius-md);
    border: 1px solid var(--border-color, #e5e7eb);
}

.tax-pension-stat-label {
    display: block;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-muted, #6b7280);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.35rem;
}

.tax-pension-stat-value {
    display: block;
    font-size: 1rem;
    font-weight: 700;
    color: var(--tax-purple);
}

.tax-no-other {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted, #6b7280);
    font-size: 0.9rem;
}

/* =============================================
   DOUGHNUT CHART
   ============================================= */
.tax-chart-container {
    position: relative;
    width: 280px;
    height: 280px;
    margin: 0 auto 1.5rem;
}

#taxChart {
    width: 100% !important;
    height: 100% !important;
}

.tax-chart-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    pointer-events: none;
}

.tax-chart-center-label {
    display: block;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-muted, #6b7280);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.tax-chart-center-value {
    display: block;
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--tax-success);
    letter-spacing: -0.02em;
}

.tax-chart-legend {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
}

.tax-chart-legend-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-secondary, #4b5563);
}

.tax-chart-legend-dot {
    width: 12px;
    height: 12px;
    border-radius: 3px;
    flex-shrink: 0;
}

.tax-chart-legend-value {
    font-weight: 700;
    color: var(--text-primary, #111827);
    margin-left: 0.15rem;
}

/* =============================================
   EXPORT BUTTONS
   ============================================= */
.tax-export-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.75rem;
}

.tax-export-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary, #4b5563);
    background: var(--bg-secondary, #f9fafb);
    border: 1.5px solid var(--border-color, #e5e7eb);
    border-radius: var(--tax-radius-md);
    cursor: pointer;
    transition: all var(--tax-transition);
}

.tax-export-btn i {
    font-size: 1.35rem;
}

.tax-export-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--tax-shadow-md);
}

.tax-export-pdf:hover {
    background: var(--tax-danger-light);
    border-color: var(--tax-danger);
    color: var(--tax-danger);
}

.tax-export-csv:hover {
    background: var(--tax-success-light);
    border-color: var(--tax-success);
    color: var(--tax-success);
}

.tax-export-print:hover {
    background: var(--tax-primary-light);
    border-color: var(--tax-primary);
    color: var(--tax-primary);
}

.tax-export-copy:hover {
    background: var(--tax-purple-light);
    border-color: var(--tax-purple);
    color: var(--tax-purple);
}

.tax-copy-toast {
    display: none;
    text-align: center;
    padding: 0.6rem 1rem;
    margin-top: 0.75rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--tax-success);
    background: var(--tax-success-light);
    border-radius: var(--tax-radius-md);
    animation: taxFadeIn 0.3s ease;
}

.tax-copy-toast.visible {
    display: block;
}

/* =============================================
   INFO BLOCKS
   ============================================= */
.tax-info-block {
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color, #e5e7eb);
}

.tax-info-block:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.tax-info-block h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary, #111827);
    margin-bottom: 0.5rem;
}

.tax-info-block p {
    font-size: 0.9rem;
    color: var(--text-secondary, #4b5563);
    line-height: 1.65;
    margin-bottom: 0.5rem;
}

.tax-info-block p:last-child {
    margin-bottom: 0;
}

.tax-info-block ul {
    margin: 0.5rem 0;
    padding-left: 1.5rem;
}

.tax-info-block li {
    font-size: 0.9rem;
    color: var(--text-secondary, #4b5563);
    line-height: 1.65;
    margin-bottom: 0.35rem;
}

/* =============================================
   TAX TIPS
   ============================================= */
.tax-tips-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.tax-tip-item {
    display: flex;
    gap: 1rem;
    padding: 1.25rem;
    background: var(--bg-secondary, #f9fafb);
    border-radius: var(--tax-radius-md);
    border-left: 4px solid var(--tip-color, var(--tax-primary));
    transition: all var(--tax-transition);
}

.tax-tip-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--tax-shadow-sm);
}

.tax-tip-icon {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--tax-radius-md);
    background: var(--bg-card, #ffffff);
    color: var(--tip-color, var(--tax-primary));
    font-size: 1.1rem;
    flex-shrink: 0;
    box-shadow: var(--tax-shadow-sm);
}

.tax-tip-info {
    flex: 1;
    min-width: 0;
}

.tax-tip-info strong {
    display: block;
    font-size: 0.9rem;
    color: var(--text-primary, #111827);
    margin-bottom: 0.25rem;
}

.tax-tip-info span {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted, #6b7280);
    line-height: 1.5;
}

/* =============================================
   SHARE SECTION
   ============================================= */
.tax-share-section {
    text-align: center;
}

.tax-share-note {
    font-size: 0.9rem;
    color: var(--text-muted, #6b7280);
    margin-bottom: 1rem;
}

.tax-share-row {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
}

.tax-share-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    border-radius: 50%;
    color: #ffffff;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all var(--tax-transition);
}

.tax-share-btn:hover {
    transform: translateY(-3px) scale(1.1);
    box-shadow: var(--tax-shadow-md);
}

/* =============================================
   FAQ ACCORDION
   ============================================= */
.tax-faq-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.tax-faq-item {
    border-bottom: 1px solid var(--border-color, #e5e7eb);
}

.tax-faq-item:last-child {
    border-bottom: none;
}

.tax-faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 1rem 0;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary, #111827);
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    gap: 1rem;
    transition: color var(--tax-transition);
}

.tax-faq-question:hover {
    color: var(--tax-primary);
}

.tax-faq-question i {
    font-size: 0.75rem;
    color: var(--text-muted, #6b7280);
    transition: transform var(--tax-transition);
    flex-shrink: 0;
}

.tax-faq-question[aria-expanded="true"] i {
    transform: rotate(180deg);
}

.tax-faq-answer {
    display: none;
    padding: 0 0 1rem 0;
}

.tax-faq-answer.visible {
    display: block;
    animation: taxFadeIn 0.3s ease;
}

.tax-faq-answer p {
    font-size: 0.88rem;
    color: var(--text-secondary, #4b5563);
    line-height: 1.65;
    margin: 0;
}

/* =============================================
   DISCLAIMER
   ============================================= */
.tax-disclaimer-card {
    background: var(--tax-warning-light);
    border-color: var(--tax-warning);
}

.tax-disclaimer {
    display: flex;
    gap: 0.75rem;
    font-size: 0.85rem;
    color: var(--text-secondary, #4b5563);
    line-height: 1.6;
}

.tax-disclaimer i {
    color: var(--tax-warning);
    font-size: 1.1rem;
    flex-shrink: 0;
    margin-top: 0.1rem;
}

.tax-disclaimer a {
    color: var(--tax-primary);
    font-weight: 600;
    text-decoration: underline;
}

.tax-disclaimer a:hover {
    color: var(--tax-primary-dark);
}

/* =============================================
   ERROR STATE
   ============================================= */
.tax-error-msg {
    display: none;
    padding: 1rem 1.25rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--tax-danger);
    background: var(--tax-danger-light);
    border: 1px solid var(--tax-danger);
    border-radius: var(--tax-radius-md);
    animation: taxFadeIn 0.3s ease;
}

.tax-error-msg.visible {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 992px) {
    .tax-summary-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .tax-tips-grid {
        grid-template-columns: 1fr;
    }

    .tax-pension-summary {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .tax-app {
        padding: 1rem;
    }

    .tax-card {
        padding: 1.25rem;
        margin-bottom: 1rem;
    }

    .tax-card-title {
        font-size: 1.05rem;
    }

    .tax-field-row {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .tax-toggle-group {
        flex-direction: column;
    }

    .tax-toggle-btn:not(:last-child) {
        border-right: none;
        border-bottom: 1.5px solid var(--border-color, #e5e7eb);
    }

    .tax-freq-group {
        gap: 0.35rem;
    }

    .tax-freq-btn {
        padding: 0.45rem 0.7rem;
        font-size: 0.78rem;
    }

    .tax-summary-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .tax-summary-main .tax-summary-value {
        font-size: 1.3rem;
    }

    .tax-summary-value {
        font-size: 1.05rem;
    }

    .tax-rates-row {
        flex-direction: column;
        gap: 0.5rem;
    }

    .tax-tabs {
        margin: -1.25rem -1.25rem 1.25rem -1.25rem;
        padding: 0 1rem;
    }

    .tax-tab {
        padding: 0.75rem 0.85rem;
        font-size: 0.78rem;
    }

    .tax-table {
        font-size: 0.82rem;
    }

    .tax-table th,
    .tax-table td {
        padding: 0.6rem 0.5rem;
    }

    .tax-export-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .tax-loan-grid {
        grid-template-columns: 1fr;
    }

    .tax-chart-container {
        width: 240px;
        height: 240px;
    }

    .tax-band-bar-label {
        width: 80px;
        font-size: 0.7rem;
    }

    .tax-band-bar-amount {
        width: 70px;
        font-size: 0.7rem;
    }

    .tax-bar-legend {
        gap: 0.5rem;
        font-size: 0.7rem;
    }

    .tax-pension-summary {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 480px) {
    .tax-app {
        padding: 0.75rem;
    }

    .tax-card {
        padding: 1rem;
        border-radius: var(--tax-radius-md);
    }

    .tax-summary-grid {
        grid-template-columns: 1fr 1fr;
        gap: 0.5rem;
    }

    .tax-summary-item {
        padding: 0.75rem 0.5rem;
    }

    .tax-summary-main .tax-summary-value {
        font-size: 1.15rem;
    }

    .tax-summary-value {
        font-size: 0.95rem;
    }

    .tax-presets {
        gap: 0.35rem;
    }

    .tax-preset-btn {
        padding: 0.3rem 0.55rem;
        font-size: 0.72rem;
    }

    .tax-calculate-btn {
        padding: 0.95rem 1.5rem;
        font-size: 1.05rem;
    }

    .tax-export-grid {
        grid-template-columns: 1fr 1fr;
        gap: 0.5rem;
    }

    .tax-export-btn {
        padding: 0.75rem;
        font-size: 0.75rem;
    }

    .tax-export-btn i {
        font-size: 1.1rem;
    }

    .tax-chart-container {
        width: 200px;
        height: 200px;
    }

    .tax-chart-center-value {
        font-size: 1.1rem;
    }

    .tax-band-bar-item {
        flex-wrap: wrap;
    }

    .tax-band-bar-label {
        width: 100%;
        text-align: left;
    }

    .tax-band-bar-track {
        flex: 1;
    }

    .tax-tip-item {
        flex-direction: column;
        gap: 0.75rem;
    }

    .tax-faq-question {
        font-size: 0.88rem;
    }
}

/* =============================================
   PRINT STYLES
   ============================================= */
@media print {
    .tax-app {
        padding: 0;
    }

    .tax-card {
        box-shadow: none;
        border: 1px solid #ddd;
        break-inside: avoid;
        page-break-inside: avoid;
    }

    .tax-input-section,
    .tax-calculate-btn,
    .tax-recalculate-btn,
    .tax-export-grid,
    .tax-share-section,
    .tax-share-row,
    .tax-copy-toast,
    .tax-faq-list,
    .tax-tips-grid,
    .tax-info-block,
    .tax-disclaimer-card {
        display: none !important;
    }

    .tax-results-section {
        display: block !important;
    }

    .tax-summary-card {
        background: #f0f4ff !important;
        color: #111827 !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .tax-summary-card .tax-card-title,
    .tax-summary-card .tax-card-title i,
    .tax-summary-card .tax-summary-year {
        color: #111827 !important;
    }

    .tax-summary-item {
        background: #e8effd !important;
    }

    .tax-summary-value,
    .tax-summary-label {
        color: #111827 !important;
    }

    .tax-bar-track {
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .tax-tab-content {
        display: block !important;
        margin-bottom: 1rem;
    }

    .tax-tabs {
        display: none;
    }

    .tax-chart-container {
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
}

/* =============================================
   ANIMATIONS
   ============================================= */
.tax-results-section {
    animation: taxSlideUp 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes taxSlideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Smooth number transitions */
.tax-summary-value,
.tax-rate-value,
.tax-chart-center-value {
    transition: all 0.3s ease;
}

/* Focus visible for accessibility */
.tax-toggle-btn:focus-visible,
.tax-freq-btn:focus-visible,
.tax-preset-btn:focus-visible,
.tax-calculate-btn:focus-visible,
.tax-tab:focus-visible,
.tax-export-btn:focus-visible,
.tax-share-btn:focus-visible,
.tax-faq-question:focus-visible {
    outline: 2px solid var(--tax-primary);
    outline-offset: 2px;
}

/* Scrollbar for tables */
.tax-overview-table-wrap::-webkit-scrollbar {
    height: 6px;
}

.tax-overview-table-wrap::-webkit-scrollbar-track {
    background: var(--bg-secondary, #f9fafb);
    border-radius: 3px;
}

.tax-overview-table-wrap::-webkit-scrollbar-thumb {
    background: var(--border-color, #d1d5db);
    border-radius: 3px;
}

.tax-overview-table-wrap::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted, #9ca3af);
}