/* d0a1 Calculator — interactive savings widget
   Loaded only on pages that contain [d0a1_calculator] shortcode.
   Coherent with d0a1-binary theme: dark surface, cyan accent (#0E7490), Inter font. */

.d0a1-calc {
    --calc-bg: #0a0e14;
    --calc-surface: #131922;
    --calc-border: #1f2937;
    --calc-text: #e5e7eb;
    --calc-muted: #9ca3af;
    --calc-accent: #06b6d4;
    --calc-accent-soft: #0891b2;
    --calc-positive: #10b981;
    --calc-radius: 8px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--calc-bg);
    color: var(--calc-text);
    border: 1px solid var(--calc-border);
    border-radius: var(--calc-radius);
    padding: 1.5rem;
    margin: 2rem 0;
    max-width: 720px;
}

.d0a1-calc__title {
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0 0 0.25rem 0;
    color: var(--calc-text);
}

.d0a1-calc__subtitle {
    font-size: 0.875rem;
    color: var(--calc-muted);
    margin: 0 0 1.5rem 0;
}

.d0a1-calc__inputs {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.d0a1-calc__field {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.d0a1-calc__label {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    font-size: 0.875rem;
}

.d0a1-calc__label-text {
    color: var(--calc-muted);
}

.d0a1-calc__value {
    font-variant-numeric: tabular-nums;
    font-weight: 600;
    color: var(--calc-accent);
    font-size: 1rem;
}

.d0a1-calc__slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 4px;
    background: var(--calc-border);
    border-radius: 2px;
    outline: none;
}

.d0a1-calc__slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    background: var(--calc-accent);
    border-radius: 50%;
    cursor: pointer;
    transition: transform 0.15s;
}

.d0a1-calc__slider::-webkit-slider-thumb:hover {
    transform: scale(1.15);
    background: var(--calc-accent-soft);
}

.d0a1-calc__slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: var(--calc-accent);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

.d0a1-calc__results {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--calc-surface);
    border-radius: var(--calc-radius);
}

.d0a1-calc__stat {
    text-align: center;
}

.d0a1-calc__stat-label {
    font-size: 0.75rem;
    color: var(--calc-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}

.d0a1-calc__stat-value {
    font-size: 1.25rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    color: var(--calc-text);
}

.d0a1-calc__stat--highlight .d0a1-calc__stat-value {
    color: var(--calc-positive);
}

.d0a1-calc__benchmarks {
    border-top: 1px solid var(--calc-border);
    padding-top: 1rem;
}

.d0a1-calc__benchmarks-title {
    font-size: 0.75rem;
    color: var(--calc-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}

.d0a1-calc__benchmark-bar {
    position: relative;
    height: 32px;
    background: var(--calc-surface);
    border-radius: 4px;
    margin-bottom: 0.5rem;
}

.d0a1-calc__benchmark-fill {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: linear-gradient(90deg, var(--calc-accent-soft) 0%, var(--calc-positive) 100%);
    border-radius: 4px;
    transition: width 0.3s ease;
    opacity: 0.85;
}

.d0a1-calc__benchmark-marker {
    position: absolute;
    top: -4px;
    bottom: -4px;
    width: 2px;
    background: var(--calc-text);
    opacity: 0.5;
}

.d0a1-calc__benchmark-marker--hit {
    background: var(--calc-positive);
    opacity: 1;
    box-shadow: 0 0 8px var(--calc-positive);
}

.d0a1-calc__benchmark-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--calc-muted);
}

.d0a1-calc__footer {
    font-size: 0.75rem;
    color: var(--calc-muted);
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--calc-border);
    line-height: 1.5;
}

.d0a1-calc__footer code {
    background: var(--calc-surface);
    padding: 0.125rem 0.375rem;
    border-radius: 3px;
    font-size: 0.875em;
    color: var(--calc-accent);
}

@media (max-width: 480px) {
    .d0a1-calc__results {
        grid-template-columns: 1fr;
    }
}