/* ===== 交互工具页面专用样式 ===== */

/* 工具导航 */
.tool-nav {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    justify-content: center;
    padding: 1rem;
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    margin-bottom: 2rem;
}

.tool-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 1.5rem;
    background: var(--background-dark);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    text-decoration: none;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.tool-nav-item:hover {
    background: var(--background-light);
    color: var(--text-primary);
}

.tool-nav-item.active {
    background: rgba(37, 99, 235, 0.2);
    border-color: var(--primary-color);
    color: var(--primary-light);
}

.tool-nav-item i {
    font-size: 1.25rem;
}

.tool-nav-item span {
    font-size: 0.85rem;
}

/* 工具区块 */
.tool-section {
    scroll-margin-top: 80px;
}

.tool-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    margin-top: 1.5rem;
}

/* 计算器面板 */
.calculator-panel {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.calc-input-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.calc-input-group label {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.radio-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.radio-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--background-dark);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.radio-item:hover {
    border-color: var(--primary-color);
}

.radio-item input {
    accent-color: var(--primary-color);
}

.calc-input-group select {
    padding: 0.75rem;
    background: var(--background-dark);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    color: var(--text-primary);
    font-size: 1rem;
}

/* 结果面板 */
.result-panel {
    background: var(--background-dark);
    border-radius: var(--border-radius-md);
    padding: 1.5rem;
}

.result-panel h4 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.result-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.result-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: 1rem;
    background: var(--card-bg);
    border-radius: var(--border-radius-sm);
}

.result-label {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.result-value {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.result-value.highlight {
    color: var(--primary-light);
}

/* 条形图 */
.result-chart {
    margin-top: 1.5rem;
}

.result-chart h5 {
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.bar-chart {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.chart-bar {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.bar-label {
    width: 80px;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.bar-container {
    flex: 1;
    height: 24px;
    background: var(--card-bg);
    border-radius: var(--border-radius-sm);
    overflow: hidden;
}

.bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--border-radius-sm);
    transition: width 0.5s ease;
}

.bar-value {
    width: 60px;
    text-align: right;
    color: var(--text-primary);
    font-size: 0.85rem;
}

/* 解码器 */
.decoder-input {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

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

.input-row label {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.input-row input {
    padding: 0.75rem;
    background: var(--background-dark);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    color: var(--text-primary);
    font-family: monospace;
    font-size: 1rem;
}

.decoder-output {
    background: var(--background-dark);
    border-radius: var(--border-radius-md);
    padding: 1.5rem;
    min-height: 200px;
}

.placeholder-text {
    color: var(--text-muted);
    text-align: center;
    padding: 3rem 0;
}

.decoder-output .field-table {
    margin-top: 1rem;
}

.decoder-output .field-row {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.decoder-output .field-name {
    color: var(--text-primary);
}

.decoder-output .field-value {
    color: var(--accent-color);
    font-family: monospace;
}

.preset-buttons {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 1rem;
    flex-wrap: wrap;
}

.preset-buttons span {
    color: var(--text-muted);
}

.preset-btn {
    padding: 0.5rem 1rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.preset-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-light);
}

/* TLP构造器 */
.tlp-builder {
    grid-template-columns: 1fr 1.5fr;
}

.tlp-config {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.config-section {
    padding: 1rem;
    background: var(--background-dark);
    border-radius: var(--border-radius-md);
}

.config-section h4 {
    color: var(--primary-light);
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.config-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.75rem;
}

.config-row label {
    width: 120px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.config-row input,
.config-row select {
    flex: 1;
    padding: 0.5rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
}

.config-row .unit {
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* TLP可视化 */
.tlp-result {
    background: var(--background-dark);
    border-radius: var(--border-radius-md);
    padding: 1.5rem;
}

.tlp-result h4 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.tlp-visual {
    display: flex;
    gap: 2px;
    margin-bottom: 1.5rem;
    border-radius: var(--border-radius-sm);
    overflow: hidden;
}

.tlp-byte {
    width: 24px;
    height: 60px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
}

.tlp-byte.header {
    background: rgba(37, 99, 235, 0.3);
}

.tlp-byte.data {
    background: rgba(16, 185, 129, 0.3);
}

.tlp-byte .byte-index {
    color: var(--text-muted);
    font-size: 0.6rem;
}

.tlp-byte .byte-value {
    color: var(--text-primary);
    font-family: monospace;
}

.tlp-fields {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
}

.tlp-field {
    padding: 0.75rem;
    background: var(--card-bg);
    border-radius: var(--border-radius-sm);
}

.tlp-field .field-name {
    color: var(--text-muted);
    font-size: 0.8rem;
}

.tlp-field .field-value {
    color: var(--accent-color);
    font-family: monospace;
    font-size: 0.9rem;
}

/* LTSSM模拟器 */
.ltssm-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.state-machine-canvas {
    background: var(--background-dark);
    border-radius: var(--border-radius-md);
    padding: 1rem;
}

#ltssmSvg {
    width: 100%;
    height: auto;
}

.state-circle {
    fill: var(--card-bg);
    stroke: var(--border-color);
    stroke-width: 2;
    transition: all var(--transition-fast);
}

.state-node.current .state-circle {
    fill: rgba(16, 185, 129, 0.3);
    stroke: var(--success-color);
    stroke-width: 3;
}

.state-node:hover .state-circle {
    stroke: var(--primary-color);
}

.state-text {
    fill: var(--text-primary);
    text-anchor: middle;
    dominant-baseline: middle;
    font-size: 12px;
}

.state-arrow {
    stroke: var(--primary-color);
    stroke-width: 2;
}

.sim-controls {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.sim-status {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--background-dark);
    border-radius: var(--border-radius-md);
}

.status-label {
    color: var(--text-muted);
}

.status-value {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--success-color);
}

.sim-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.sim-log {
    background: var(--background-dark);
    border-radius: var(--border-radius-md);
    padding: 1rem;
    max-height: 150px;
    overflow-y: auto;
    font-family: monospace;
    font-size: 0.85rem;
}

.log-entry {
    padding: 0.25rem 0;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

/* 查询表 */
.lookup-table-container {
    overflow-x: auto;
    margin-top: 1.5rem;
}

.lookup-table {
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
}

.lookup-table th {
    background: var(--background-light);
    color: var(--text-primary);
}

.lookup-table td {
    color: var(--text-secondary);
}

.lookup-table td:first-child {
    color: var(--text-primary);
    font-weight: 500;
}

/* 响应式 */
@media (max-width: 992px) {
    .tool-container {
        grid-template-columns: 1fr;
    }
    
    .tlp-builder {
        grid-template-columns: 1fr;
    }
    
    .result-grid {
        grid-template-columns: 1fr;
    }
    
    .tlp-fields {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .tool-nav {
        padding: 0.5rem;
    }
    
    .tool-nav-item {
        padding: 0.75rem 1rem;
    }
    
    .radio-group {
        flex-direction: column;
    }
    
    .config-row {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .config-row label {
        width: 100%;
    }
}