/* ========================================
   Layout - 参考设计优化
   ======================================== */

.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    width: 100%;
    overflow: hidden;
    background: var(--gradient-bg);
}

/* 顶部导航栏 - 固定 */
.top-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-card) ;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-default);
    padding: 0 var(--spacing-xl);
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
}

.top-header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.top-header-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.top-header-title svg {
    color: var(--primary);
}

.top-header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.version-info {
    font-size: 11px;
    color: var(--text-muted);
    padding: 2px 8px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
}

.main-content {
    flex: 1;
    display: flex;
    overflow: hidden;
    min-height: 0;
    padding: var(--spacing-lg);
    gap: var(--spacing-lg);
}

/* Left Panel - Connection Settings */
.left-panel {
    width: 320px;
    min-width: 320px;
    background: var(--bg-card);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-xl);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

/* Right Panel - Main Content */
.right-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-width: 0;
    background: var(--bg-card);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

/* Content Area */
.content-area {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg);
    min-height: 0;
}

/* 底部状态栏 */
.status-bar {
    position: sticky;
    bottom: 0;
    z-index: 100;
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--border-default);
    padding: 0 var(--spacing-xl);
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
    font-size: 12px;
    color: var(--text-secondary);
}