/* Dark mode overrides */
[data-theme="dark"] {
    --tool-bg: #0f172a;
    --tool-border: #334155;
    --tool-border-hover: #475569;
    --tool-text: #f8fafc;
    --tool-text-secondary: #94a3b8;
    --tool-input-bg: #1e293b;
    --tool-input-border: #334155;
    --tool-button-bg: #1e293b;
    --tool-button-hover: #334155;
    --tool-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.3);
    --tool-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
    --surface-color: #1e293b;
    --surface-hover: #334155;
    --background-color: #0f172a;
    --text-color: #f8fafc;
    --status-info: rgba(96, 165, 250, 0.2);
    --status-success: rgba(34, 197, 94, 0.2);
    --status-error: rgba(248, 113, 113, 0.2);
    --bg-color: #0f172a;
}

/* Dark mode element overrides */
[data-theme="dark"] .tool-card {
    background: var(--bg-card, #1e293b);
    border-color: var(--border-color, #334155);
}

[data-theme="dark"] .tool-hero {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
}

[data-theme="dark"] input,
[data-theme="dark"] select,
[data-theme="dark"] textarea {
    background: var(--input-bg, #1e293b);
    color: var(--text-primary, #f8fafc);
    border-color: var(--border-color, #334155);
}

[data-theme="dark"] input::placeholder,
[data-theme="dark"] textarea::placeholder {
    color: var(--text-muted, #64748b);
}

[data-theme="dark"] .tab-btn.active {
    color: white;
}

[data-theme="dark"] label {
    color: var(--text-primary, #f8fafc);
}

[data-theme="dark"] h1, [data-theme="dark"] h2, [data-theme="dark"] h3,
[data-theme="dark"] h4, [data-theme="dark"] h5, [data-theme="dark"] h6 {
    color: var(--text-primary, #f8fafc);
}

[data-theme="dark"] p {
    color: var(--text-secondary, #cbd5e1);
}

/* Dark mode text color fixes */
[data-theme="dark"] .input-prefix,
[data-theme="dark"] .input-suffix,
[data-theme="dark"] .input-icon {
    color: #94a3b8;
}

.calculator-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.calculator-header {
    text-align: center;
    margin-bottom: 3rem;
}

.calculator-header h1 {
    font-size: 2.5rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.calculator-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

.calculator-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.calculator-card {
    background: var(--bg-primary);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.form-input {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1.1rem;
    transition: border-color 0.3s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--text-success);
    box-shadow: 0 0 0 3px rgba(56, 161, 105, 0.1);
}

.input-group {
    position: relative;
}

.input-prefix {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-weight: 500;
}

.form-input.has-prefix {
    padding-left: 2.5rem;
}

.form-select {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1.1rem;
    background: var(--bg-primary);
    transition: border-color 0.3s ease;
}

.form-select:focus {
    outline: none;
    border-color: var(--text-success);
    box-shadow: 0 0 0 3px rgba(56, 161, 105, 0.1);
}

.tax-regime-toggle {
    display: flex;
    background: var(--bg-secondary);
    border-radius: 8px;
    padding: 0.25rem;
    margin-bottom: 1.5rem;
}

.regime-option {
    flex: 1;
    padding: 0.75rem;
    text-align: center;
    border: none;
    background: none;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.regime-option.active {
    background: #38a169;
    color: var(--bg-primary);
}

.results-section {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, #38a169 0%, #2f855a 100%);
    color: var(--bg-primary);
    border-radius: 12px;
    padding: 2rem;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.result-card {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

.result-label {
    font-size: 0.875rem;
    opacity: 0.9;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.result-value {
    font-size: 1.8rem;
    font-weight: 700;
}

.result-value.large {
    font-size: 2.5rem;
}

.breakdown-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.breakdown-card {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 1.5rem;
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

.breakdown-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #ffd700;
}

.breakdown-item {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.breakdown-item:last-child {
    border-bottom: none;
    font-weight: 700;
    font-size: 1.1rem;
    margin-top: 0.5rem;
    padding-top: 1rem;
    border-top: 2px solid rgba(255, 255, 255, 0.3);
}

.comparison-section {
    background: var(--bg-primary);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    margin-top: 2rem;
}

.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.comparison-card {
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
}

.comparison-card.recommended {
    border-color: var(--text-success);
    background: var(--color-green-soft);
}

.comparison-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.comparison-card.recommended .comparison-title {
    color: var(--text-success);
}

.comparison-amount {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.comparison-card.recommended .comparison-amount {
    color: var(--text-success);
}

.comparison-difference {
    font-size: 1.1rem;
    font-weight: 600;
}

.positive {
    color: var(--text-success);
}

.negative {
    color: #e53e3e;
}

.deduction-section {
    background: var(--bg-primary);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    margin-top: 2rem;
}

.deduction-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.deduction-group {
    background: var(--bg-secondary);
    border-radius: 8px;
    padding: 1.5rem;
}

.deduction-title {
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.monthly-breakdown {
    background: var(--bg-primary);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    margin-top: 2rem;
}

.monthly-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.monthly-card {
    background: var(--bg-secondary);
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
    border: 2px solid var(--border-color);
}

.monthly-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.monthly-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .calculator-grid,
    .comparison-grid {
        grid-template-columns: 1fr;
    }
    
    .calculator-container {
        padding: 1rem;
    }
    
    .breakdown-section {
        grid-template-columns: 1fr;
    }
}