/* ========================================
   Shared Calculator Styles
   ======================================== */
:root {
    --color-bg: #ffffff;
    --color-bg-subtle: #fafafa;
    --color-text-primary: #222221;
    --color-text-secondary: #898683;
    --color-button-bg: #160F0C;
    --color-button-text: #ffffff;
    --color-accent: #2563eb;
    --color-success: #059669;
    --font-family: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-bg);
    color: var(--color-text-primary);
    line-height: 1.5;
    min-height: 100vh;
}

.calculator-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.calc-header {
    margin-bottom: 2.5rem;
}

.back-link {
    display: inline-block;
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    text-decoration: none;
    margin-bottom: 1.5rem;
    transition: color 0.2s ease;
}

.back-link:hover {
    color: var(--color-text-primary);
}

.calc-title {
    font-size: 2.25rem;
    font-weight: 400;
    letter-spacing: -0.03em;
    margin-bottom: 0.5rem;
}

.calc-subtitle {
    font-size: 1.0625rem;
    color: var(--color-text-secondary);
}

/* Main Layout */
.calc-main {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    align-items: start;
}

/* Inputs */
.calc-inputs {
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
}

.input-group label {
    display: block;
    font-size: 0.9375rem;
    font-weight: 500;
    margin-bottom: 0.75rem;
    color: var(--color-text-primary);
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    background: var(--color-bg);
    border: 2px solid #e5e5e5;
    border-radius: 10px;
    transition: border-color 0.2s ease;
}

.input-wrapper:focus-within {
    border-color: var(--color-button-bg);
}

.input-wrapper input {
    flex: 1;
    padding: 0.875rem 1rem;
    font-size: 1.125rem;
    font-family: inherit;
    border: none;
    background: transparent;
    outline: none;
    width: 100%;
}

.input-prefix,
.input-suffix {
    padding: 0 1rem;
    font-size: 1rem;
    color: var(--color-text-secondary);
}

.input-prefix {
    padding-right: 0;
}

.input-suffix {
    padding-left: 0;
}

/* Range slider */
input[type="range"] {
    width: 100%;
    height: 6px;
    margin-top: 0.75rem;
    -webkit-appearance: none;
    appearance: none;
    background: #e5e5e5;
    border-radius: 3px;
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    background: var(--color-button-bg);
    border-radius: 50%;
    cursor: pointer;
    transition: transform 0.15s ease;
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: var(--color-button-bg);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

/* Remove number input spinners */
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

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

/* Results */
.calc-results {
    position: sticky;
    top: 2rem;
}

.result-card {
    background: var(--color-bg-subtle);
    border-radius: 16px;
    padding: 1.75rem;
    margin-bottom: 1.5rem;
}

.result-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid #eee;
}

.result-row:last-child {
    border-bottom: none;
}

.result-row.total {
    padding-top: 1rem;
    margin-top: 0.5rem;
    border-top: 2px solid #ddd;
    border-bottom: none;
}

.result-label {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
}

.result-value {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-text-primary);
}

.result-value.highlight {
    color: var(--color-success);
}

.result-row.total .result-label,
.result-row.total .result-value {
    font-size: 1.125rem;
    font-weight: 600;
}

/* Chart */
.chart-container {
    background: var(--color-bg-subtle);
    border-radius: 12px;
    padding: 1.25rem;
}

.chart-bar {
    display: flex;
    height: 24px;
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 1rem;
}

.chart-invested {
    background: var(--color-button-bg);
    transition: width 0.3s ease;
}

.chart-returns {
    background: var(--color-success);
    transition: width 0.3s ease;
}

.chart-legend {
    display: flex;
    gap: 1.5rem;
    font-size: 0.875rem;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-text-secondary);
}

.legend-color {
    width: 12px;
    height: 12px;
    border-radius: 3px;
}

.legend-color.invested {
    background: var(--color-button-bg);
}

.legend-color.returns {
    background: var(--color-success);
}

/* CAGR Display */
.cagr-result {
    text-align: center;
}

.cagr-display {
    margin-bottom: 1rem;
}

.cagr-label {
    display: block;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.cagr-value {
    font-size: 3rem;
    font-weight: 600;
    color: var(--color-success);
    letter-spacing: -0.02em;
}

.cagr-description {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
}

/* EMI Display */
.emi-result {
    text-align: center;
}

.emi-display {
    padding: 1rem 0;
}

.emi-label {
    display: block;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.emi-value {
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--color-text-primary);
    letter-spacing: -0.02em;
}

/* Footer */
.calc-footer {
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid #eee;
}

.disclaimer {
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    text-align: center;
}

/* Responsive */
@media (max-width: 768px) {
    .calculator-container {
        padding: 1.5rem;
    }

    .calc-title {
        font-size: 1.875rem;
    }

    .calc-main {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .calc-results {
        position: static;
    }
}