.calculator-section {
    background: var(--section-soft-bg);
    padding: 4rem 0;
    margin-top: 5rem;
}

.calculator-wrapper {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 2rem;
    margin-top: 2rem;
}

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

.option-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.option-buttons {
    display: flex;
    gap: 0.75rem;
}

.option-btn {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 2px solid var(--card-border);
    background: transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-sub);
    font-family: 'Cairo', sans-serif;
}

.option-btn:hover {
    border-color: #344697;
    background: rgba(52, 70, 151, 0.1);
}

.option-btn.active {
    border-color: #344697;
    background: rgba(52, 70, 151, 0.2);
    color: #344697;
}

.option-btn i {
    font-size: 16px;
}

.calculator-fields {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.calc-field {
    display: flex;
    flex-direction: column;
}

.calc-field label,
.calc-result label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-sub);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.calc-field input,
.calc-field select {
    padding: 0.75rem 1rem;
    border: 1px solid var(--card-border);
    background: var(--card-bg);
    border-radius: 8px;
    color: var(--text-main);
    font-family: 'Cairo', sans-serif;
    font-size: 14px;
    transition: all 0.3s ease;
}

.calc-field select option {
    background: var(--card-bg);
    color: var(--text-main);
    padding: 0.5rem;
}

.calc-field input::placeholder {
    color: var(--text-sub);
    opacity: 0.5;
}

.calc-field input:focus,
.calc-field select:focus {
    outline: none;
    border-color: #344697;
    box-shadow: 0 0 0 3px rgba(52, 70, 151, 0.1);
}

.calc-field select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23344697' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: left 0.75rem center;
    background-size: 1.2em 1.2em;
    padding-left: 2.5rem;
    padding-right: 1rem;
}

:root[data-theme="light"] .calc-field select,
body.theme-light .calc-field select {
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23344697' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
}

.calc-result {
    display: flex;
    flex-direction: column;
}

.result-display {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem;
    border: 2px solid var(--card-border);
    border-radius: 8px;
    background: rgba(52, 70, 151, 0.05);
    min-height: 44px;
}

#calcResult {
    font-size: 24px;
    font-weight: 700;
    color: #344697;
}

#resultCurrency {
    font-size: 14px;
    color: var(--text-sub);
    font-weight: 600;
}

.rate-info {
    background: rgba(52, 70, 151, 0.1);
    padding: 1rem;
    border-radius: 8px;
    border-right: 4px solid #344697;
    text-align: center;
    margin-bottom: 1.5rem;
}

.rate-info p {
    font-size: 13px;
    color: #344697;
    font-weight: 600;
}

.share-actions {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.share-btn {
    padding: 0.75rem 1rem;
    border: 1px solid var(--card-border);
    background: transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-sub);
    font-family: 'Cairo', sans-serif;
}

.share-btn:hover {
    border-color: #344697;
    background: rgba(52, 70, 151, 0.1);
    color: #344697;
    transform: translateY(-2px);
}

.share-btn:active {
    transform: translateY(0);
}

.share-btn i {
    font-size: 16px;
}

.share-menu {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    z-index: 2000;
    min-width: 250px;
    animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translate(-50%, -45%);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%);
    }
}

.share-menu-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--text-main);
    text-decoration: none;
    border-bottom: 1px solid var(--card-border);
    transition: all 0.3s ease;
    font-size: 14px;
    font-weight: 600;
    font-family: 'Cairo', sans-serif;
}

.share-menu-item:last-child {
    border-bottom: none;
}

.share-menu-item:hover {
    background: rgba(52, 70, 151, 0.1);
    padding-left: 1.25rem;
}

.share-menu-item i {
    font-size: 18px;
    width: 24px;
    text-align: center;
}

.rates-table-section {
    background: var(--section-strong-bg);
    padding: 4rem 0;
}

.rates-table-wrapper {
    overflow-x: auto;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 1.5rem;
}

.rates-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.rates-table thead {
    border-bottom: 2px solid var(--card-border);
}

.rates-table th {
    padding: 1rem;
    text-align: right;
    font-weight: 600;
    color: var(--text-main);
    background: rgba(52, 70, 151, 0.05);
}

.rates-table th:first-child {
    text-align: right;
}

.rates-table .sub-header th {
    padding: 0.75rem 1rem;
    font-size: 12px;
    background: rgba(52, 70, 151, 0.02);
}

.rates-table tbody tr {
    border-bottom: 1px solid var(--card-border);
    transition: all 0.3s ease;
}

.rates-table tbody tr:hover {
    background: rgba(52, 70, 151, 0.05);
}

.rates-table td {
    padding: 1rem;
    color: var(--text-main);
}

.rates-table td:first-child {
    font-weight: 600;
}

.rates-table .currency-code {
    font-size: 12px;
    color: var(--text-sub);
    font-weight: 600;
}

.rates-table .rate-value {
    font-weight: 600;
    color: #344697;
}

.rates-table .update-time {
    font-size: 12px;
    color: var(--text-sub);
}

.notification {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: #344697;
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(52, 70, 151, 0.3);
    font-size: 14px;
    font-weight: 600;
    z-index: 1000;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease;
}

.notification.show {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 1024px) {
    .calculator-options {
        grid-template-columns: 1fr;
    }

    .calculator-fields {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .calculator-section {
        padding: 2rem 0;
        margin-top: 4rem;
    }

    .calculator-wrapper {
        padding: 1.5rem;
    }

    .calculator-fields {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .rates-table-wrapper {
        padding: 1rem;
        font-size: 12px;
    }

    .rates-table th,
    .rates-table td {
        padding: 0.75rem 0.5rem;
    }

    .rates-table .sub-header th {
        padding: 0.5rem;
    }
}

@media (max-width: 768px) {
    .share-menu {
        min-width: 200px;
    }
}

@media (max-width: 480px) {
    .calculator-options {
        gap: 1rem;
    }

    .option-buttons {
        flex-direction: column;
        gap: 0.5rem;
    }

    .option-btn {
        padding: 0.6rem 0.8rem;
        font-size: 12px;
    }

    .calculator-fields {
        gap: 0.75rem;
    }

    .calc-field input,
    .calc-field select {
        padding: 0.6rem 0.8rem;
        font-size: 13px;
    }

    .result-display {
        padding: 0.75rem;
        min-height: 40px;
    }

    #calcResult {
        font-size: 20px;
    }

    .share-actions {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
    }

    .share-btn {
        padding: 0.6rem 0.8rem;
        font-size: 12px;
    }

    .share-btn i {
        font-size: 14px;
    }

    .rates-table-wrapper {
        padding: 0.75rem;
    }

    .rates-table {
        font-size: 11px;
    }

    .rates-table th,
    .rates-table td {
        padding: 0.5rem 0.25rem;
    }

    .notification {
        bottom: 10px;
        right: 10px;
        left: 10px;
        padding: 0.75rem 1rem;
        font-size: 12px;
    }
}