/* ─── CALCULATOR.EXE — Calculator Application ─── */
.calc-body {
    padding: 16px !important;
    display: flex;
    flex-direction: column;
    background: rgba(0, 0, 0, 0.2);
    gap: 12px;
}

.calc-display {
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid var(--window-border);
    border-radius: 8px;
    padding: 12px 16px;
    text-align: right;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.calc-history {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    color: var(--text-secondary);
    opacity: 0.6;
    min-height: 14px;
}

.calc-current {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.calc-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    flex: 1;
}

.calc-btn {
    background: var(--item-bg);
    border: 1px solid var(--item-border);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-stack);
    font-size: 1.2rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 48px;
}

.calc-btn:hover {
    background: var(--item-hover);
    border-color: rgba(255, 255, 255, 0.15);
}

.calc-btn:active {
    background: rgba(255, 255, 255, 0.15);
}

@media (hover: hover) {
    .calc-btn:active {
        transform: scale(0.95);
    }
}

.calc-op {
    color: var(--accent);
    background: color-mix(in srgb, var(--accent) 8%, transparent);
    border-color: color-mix(in srgb, var(--accent) 15%, transparent);
}

.calc-op:hover {
    background: color-mix(in srgb, var(--accent) 15%, transparent);
    border-color: var(--accent);
}

.calc-equal {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

.calc-equal:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
}

.calc-zero {
    grid-column: span 2;
}