/**
 * 快捷键帮助面板样式
 */

/* 遮罩层 */
.shortcuts-help-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 12000;
    /* 高于 Modal */
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.25s ease;
}

.shortcuts-help-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* 面板 */
.shortcuts-help-panel {
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.4);
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transform: scale(0.95) translateY(10px);
    transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.shortcuts-help-overlay.active .shortcuts-help-panel {
    transform: scale(1) translateY(0);
}

/* 头部 */
.shortcuts-help-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--color-border-light);
    background: var(--color-bg-secondary);
}

.shortcuts-help-header h2 {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text-primary);
}

.shortcuts-help-close {
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    color: var(--color-text-secondary);
    font-size: 24px;
    cursor: pointer;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
}

.shortcuts-help-close:hover {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
}

/* 内容区 */
.shortcuts-help-body {
    flex: 1;
    overflow-y: auto;
    padding: 16px 20px;
}

/* 分组 */
.shortcuts-group {
    margin-bottom: 20px;
}

.shortcuts-group:last-child {
    margin-bottom: 0;
}

.shortcuts-group-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 0 0 10px 0;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--color-border-light);
}

/* 快捷键列表 */
.shortcuts-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.shortcuts-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    background: var(--color-bg-secondary);
    border-radius: 8px;
    transition: background 0.15s ease;
}

.shortcuts-item:hover {
    background: var(--color-bg-tertiary);
}

.shortcuts-keys {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
}

.shortcuts-keys kbd {
    display: inline-block;
    padding: 4px 8px;
    font-size: 12px;
    font-family: -apple-system, BlinkMacSystemFont, 'SF Mono', Consolas, monospace;
    font-weight: 500;
    color: var(--color-text-primary);
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    box-shadow: 0 2px 0 var(--color-border);
    min-width: 24px;
    text-align: center;
}

.shortcuts-desc {
    font-size: 13px;
    color: var(--color-text-secondary);
    text-align: right;
}

/* 底部 */
.shortcuts-help-footer {
    padding: 12px 20px;
    text-align: center;
    font-size: 12px;
    color: var(--color-text-tertiary);
    border-top: 1px solid var(--color-border-light);
    background: var(--color-bg-secondary);
}

.shortcuts-help-footer kbd {
    display: inline-block;
    padding: 2px 6px;
    font-size: 11px;
    font-family: inherit;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    margin: 0 2px;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .shortcuts-help-panel {
        width: 95%;
        max-height: 85vh;
        border-radius: 12px;
    }

    .shortcuts-help-header {
        padding: 12px 16px;
    }

    .shortcuts-help-header h2 {
        font-size: 16px;
    }

    .shortcuts-help-body {
        padding: 12px 16px;
    }

    .shortcuts-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
    }

    .shortcuts-desc {
        text-align: left;
        font-size: 12px;
    }
}