/* Calculators Tool CSS */

.calculator-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 2rem;
    border-bottom: 2px solid var(--border);
    justify-content: center;
}

.tab-button {
    padding: 0.75rem 1.25rem;
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    bottom: -2px;
}

.tab-button:hover {
    color: var(--primary);
}

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

.calculator-tab {
    display: none;
    animation: fadeIn 0.3s ease;
}

.calculator-tab.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.calculator-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 1rem;
}

.input-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.input-field {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.input-field label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.input-field input,
.input-field select {
    padding: 0.75rem;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.2s ease;
    font-family: inherit;
}

.input-field input:focus,
.input-field select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.input-field input::placeholder {
    color: var(--text-secondary);
}

.input-section .btn {
    align-self: flex-end;
    margin-top: auto;
    min-width: 150px;
}

.result-box {
    background: var(--bg-secondary);
    border: 1.5px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.result-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 1rem;
    background: var(--bg-primary);
    border-radius: 8px;
    border-left: 4px solid var(--primary);
}

.result-item.full-width {
    grid-column: 1 / -1;
}

.result-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.result-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary);
    word-break: break-word;
}

/* Responsive Design */
@media (max-width: 768px) {
    .calculator-tabs {
        gap: 0.25rem;
        margin-bottom: 1.5rem;
    }

    .tab-button {
        padding: 0.6rem 0.9rem;
        font-size: 0.9rem;
    }

    .input-section {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .input-section .btn {
        grid-column: 1 / -1;
        width: 100%;
    }

    .result-box {
        grid-template-columns: 1fr;
        gap: 1rem;
        padding: 1rem;
    }

    .result-value {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .calculator-tabs {
        flex-direction: column;
        gap: 0;
        border-bottom: none;
        border-left: 2px solid var(--border);
    }

    .tab-button {
        border-bottom: none;
        border-left: 3px solid transparent;
        padding: 0.75rem 1rem;
        position: static;
        text-align: left;
        width: 100%;
        justify-content: flex-start;
    }

    .tab-button.active {
        border-left-color: var(--primary);
        border-bottom: none;
    }

    .input-field input,
    .input-field select {
        font-size: 16px;
    }
}