/* Object Layout and Container Structures */
.app-layout {
    display: flex;
    width: 100%;
    height: 100vh;
    overflow: hidden;
}

.app-sidebar {
    width: 290px;
    background: var(--ds-sidebar-bg);
    border-right: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    flex-direction: column;
    height: 100%;
    flex-shrink: 0;
    z-index: 100;
}

.app-content {
    flex: 1;
    height: 100vh;
    overflow-y: auto;
    background: var(--ds-bg-dark);
    display: flex;
    flex-direction: column;
}

/* Glassmorphism Panel Container Object */
.glass-panel {
    background: var(--ds-panel-bg);
    border: 1px solid var(--ds-border-glow);
    border-radius: 12px;
    backdrop-filter: blur(12px);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    padding: 20px;
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

.glass-panel:hover {
    border-color: rgba(0, 198, 255, 0.3);
    box-shadow: 0 8px 32px 0 rgba(0, 198, 255, 0.08);
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding-bottom: 10px;
}

.panel-title {
    font-size: var(--ds-size-step-1);
    font-weight: 700;
    color: var(--ds-accent-cyan);
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0;
}

/* 3-Column Flows Operational Grid */
.main-grid {
    display: grid;
    grid-template-columns: 280px 1fr 340px;
    gap: 20px;
    padding: 20px;
    height: calc(100vh - 40px);
    overflow: hidden;
}

/* Chat Layout Container */
.chat-container {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 20px;
    height: calc(100vh - 40px);
    padding: 20px;
    overflow: hidden;
}