/* Number Base Converter Styles */
.base-converter {
    background: white;
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
}

.input-section {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
    align-items: flex-end;
}

.input-section .form-group {
    flex: 1;
    min-width: 200px;
}

.conversion-results {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

@media (min-width: 992px) {
    .conversion-results {
        grid-template-columns: repeat(4, 1fr);
    }
}

.result-card {
    background: var(--light-gray);
    border-radius: var(--radius);
    padding: 1.5rem;
    text-align: center;
    border-top: 4px solid transparent;
    transition: transform 0.3s ease;
}

.result-card:hover {
    transform: translateY(-5px);
}

.result-card.binary {
    border-top-color: #3b82f6;
}

.result-card.octal {
    border-top-color: #10b981;
}

.result-card.decimal {
    border-top-color: #f59e0b;
}

.result-card.hex {
    border-top-color: #8b5cf6;
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.result-header h4 {
    margin: 0;
    font-size: 1rem;
}

.result-icon {
    font-size: 0.8rem;
    color: var(--gray);
    font-weight: 600;
    background: white;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
}

.result-value {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: monospace;
    margin-bottom: 0.5rem;
    word-break: break-all;
}

.result-bits {
    font-size: 0.9rem;
    color: var(--gray);
    display: flex;
    justify-content: center;
    gap: 0.5rem;
}

.bit-visualization {
    background: var(--light-gray);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin: 1.5rem 0;
}

.bits-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    margin: 1rem 0;
    padding: 1rem;
    background: white;
    border-radius: var(--radius);
}

.bit {
    width: 60px;
    height: 80px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    border: 2px solid var(--border);
    transition: all 0.3s ease;
}

.bit-on {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
    border-color: #1d4ed8;
}

.bit-off {
    background: white;
    color: var(--text);
}

.bit-value {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.bit-position {
    font-size: 0.8rem;
    opacity: 0.8;
}

.bit-weight {
    font-size: 0.9rem;
    font-weight: 600;
    margin-top: 0.25rem;
}

.bit-info {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 1rem;
}

.bit-summary {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.bit-summary .label {
    font-size: 0.9rem;
    color: var(--gray);
}

.bit-summary .value {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary);
}

.quick-conversions {
    margin: 1.5rem 0;
}

.quick-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.quick-btn {
    background: white;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    padding: 0.75rem 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: monospace;
    font-size: 0.9rem;
}

.quick-btn:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: translateY(-2px);
}

.base-operations {
    margin: 2rem 0;
}

.operation-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-top: 1rem;
}

@media (min-width: 768px) {
    .operation-cards {
        grid-template-columns: repeat(4, 1fr);
    }
}

.operation-card {
    background: white;
    border-radius: var(--radius);
    padding: 1.5rem;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.operation-card:hover {
    transform: translateY(-5px);
}

.operation-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.operation-card h4 {
    margin: 0 0 0.5rem 0;
}

.operation-card p {
    font-size: 0.9rem;
    color: var(--gray);
    margin-bottom: 1rem;
}

.operation-btn {
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius);
    padding: 0.5rem 1rem;
    cursor: pointer;
    transition: background 0.3s ease;
}

.operation-btn:hover {
    background: var(--primary-dark);
}

.common-values {
    background: white;
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-top: 1.5rem;
    box-shadow: var(--shadow);
}

.value-table {
    margin-top: 1rem;
}

.value-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    padding: 0.75rem;
    border-bottom: 1px solid var(--border);
    font-family: monospace;
}

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

.value-decimal {
    text-align: center;
    font-weight: 600;
}

.value-hex {
    text-align: center;
    color: #8b5cf6;
    font-weight: 600;
}

.value-binary {
    text-align: center;
    color: #3b82f6;
    font-weight: 600;
}

.conversion-methods {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.method {
    background: var(--light-gray);
    border-radius: var(--radius);
    padding: 1.5rem;
}

.method h4 {
    margin-top: 0;
}

.method ol {
    padding-left: 1.5rem;
    margin: 1rem 0;
}

.method li {
    margin-bottom: 0.5rem;
}

.method p {
    margin: 1rem 0 0 0;
    font-weight: 600;
}

.applications-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin: 1.5rem 0;
}

.application {
    background: var(--light-gray);
    border-radius: var(--radius);
    padding: 1.5rem;
}

.application h4 {
    margin-top: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Operation Modal */
.operation-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-content {
    background: white;
    border-radius: var(--radius);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.modal-header h3 {
    margin: 0;
}

.close-modal {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray);
}

.modal-body {
    padding: 1.5rem;
}

.operation-inputs {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    min-width: 150px;
}

.operation-symbol {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

.equals-sign {
    font-size: 2rem;
    font-weight: 700;
    color: var(--gray);
}

.result-display {
    min-width: 150px;
    padding: 1rem;
    background: var(--light-gray);
    border-radius: var(--radius);
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
    font-family: monospace;
}

.operation-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.error-message {
    background: #fee2e2;
    color: #dc2626;
    padding: 0.75rem;
    border-radius: var(--radius);
    margin-top: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Responsive */
@media (max-width: 768px) {
    .conversion-results {
        grid-template-columns: 1fr;
    }
    
    .operation-cards {
        grid-template-columns: 1fr;
    }
    
    .conversion-methods {
        grid-template-columns: 1fr;
    }
    
    .applications-grid {
        grid-template-columns: 1fr;
    }
    
    .bits-container {
        justify-content: flex-start;
        overflow-x: auto;
        padding: 1rem 0.5rem;
    }
    
    .bit {
        width: 50px;
        height: 70px;
        flex-shrink: 0;
    }
}

@media (max-width: 480px) {
    .input-section {
        flex-direction: column;
    }
    
    .input-section .form-group {
        width: 100%;
    }
    
    .quick-buttons {
        flex-direction: column;
    }
    
    .quick-btn {
        width: 100%;
    }
}