/* ========================================
   AI Tools Hub - 进制编码转换工具样式
   ======================================== */

/* 布局 */
.converter-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin: 24px 0;
}

.converter-panel {
    background: var(--color-white);
    border-radius: var(--radius-md);
    padding: 24px;
    box-shadow: var(--shadow-border);
}

.converter-form {
    padding-top: 8px;
}

/* 表单元素 */
.input-group {
    margin-bottom: 16px;
    position: relative;
}

.input-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-gray-600);
    margin-bottom: 6px;
}

.converter-input,
.converter-textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--color-gray-100);
    border-radius: var(--radius);
    font-size: 14px;
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    transition: all 0.15s;
    background: var(--color-gray-50);
    color: var(--color-black);
}

.converter-input:focus,
.converter-textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    background: var(--color-white);
    box-shadow: 0 0 0 3px rgba(0, 112, 243, 0.1);
}

.converter-textarea {
    resize: vertical;
    min-height: 100px;
}

.copy-btn {
    position: absolute;
    right: 8px;
    top: 36px;
    background: var(--color-gray-100);
    border: none;
    border-radius: var(--radius-sm);
    padding: 4px 8px;
    cursor: pointer;
    transition: all 0.15s;
    font-size: 14px;
}

.copy-btn:hover {
    background: var(--color-gray-400);
}

/* 动作按钮 */
.converter-actions {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

/* 参考表格 */
.reference-table {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--color-gray-100);
}

.reference-table h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-black);
    margin-bottom: 12px;
}

.ascii-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.ascii-table th {
    background: var(--color-gray-50);
    padding: 8px 12px;
    text-align: left;
    font-weight: 600;
    color: var(--color-gray-600);
    border-bottom: 1px solid var(--color-gray-100);
}

.ascii-table td {
    padding: 6px 12px;
    border-bottom: 1px solid var(--color-gray-100);
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    color: var(--color-black);
}

/* 历史记录 */
.history-section {
    margin: 24px 0;
}

.history-list {
    max-height: 300px;
    overflow-y: auto;
}

.history-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 8px;
    background: var(--color-gray-50);
}

.history-item.history-success {
    border-left: 3px solid var(--color-success);
}

.history-type {
    font-weight: 600;
    color: var(--color-black);
    min-width: 100px;
    font-size: 13px;
}

.history-desc {
    flex: 1;
    color: var(--color-gray-600);
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 13px;
}

.history-time {
    color: var(--color-gray-400);
    font-size: 12px;
}

.empty-state {
    text-align: center;
    padding: 40px;
    color: var(--color-gray-400);
    font-size: 14px;
}

/* Tabs */
.tabs-container {
    display: flex;
    gap: 8px;
    margin: 24px 0;
    border-bottom: 1px solid var(--border-subtle);
    padding-bottom: 0;
}

.tab-btn {
    background: transparent;
    border: none;
    padding: 12px 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
}

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

.tab-btn.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.tab-content {
    display: none;
}

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

/* Hash Results */
.hash-results {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border-subtle);
}

.hash-item {
    margin-bottom: 16px;
    position: relative;
}

.hash-item label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.hash-output {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-family: 'SF Mono', 'Monaco', 'Consolas', monospace;
    font-size: 13px;
}

/* 响应式 */
@media (max-width: 768px) {
    .converter-layout {
        grid-template-columns: 1fr;
    }
    
    .converter-actions {
        flex-direction: column;
    }
    
    .tabs-container {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .tab-btn {
        white-space: nowrap;
        padding: 10px 16px;
        font-size: 13px;
    }
}