/* css/layout.css */

/* --- Main App Structure --- */
.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
    /* Scaling removed - manage responsiveness via media queries and flexible units */
}

.topbar {
    height: var(--topbar-height);
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 25px;
    position: fixed; /* Changed from sticky to fixed for common full-page layout */
    top: 0;
    left: 0;
    right: 0;
    z-index: 1030; /* High z-index for topbar */
    box-shadow: 0 2px 4px var(--shadow-color);
    transition: background-color var(--transition-speed-normal) ease, border-color var(--transition-speed-normal) ease;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-primary);
    letter-spacing: -0.5px;
    cursor: default;
    user-select: none;
}
.logo span {
    font-weight: 400;
    color: var(--text-secondary);
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 15px; /* Consistent gap */
}

.content-wrapper {
    display: flex;
    flex-grow: 1;
    margin-top: var(--topbar-height); /* Offset for fixed topbar */
    height: calc(100vh - var(--topbar-height)); /* Fill remaining height */
    overflow: hidden; /* Prevent content-wrapper itself from scrolling if children manage it */
}

.sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-primary);
    border-right: 1px solid var(--border-color);
    /* padding: 25px 0; Removed top/bottom padding to allow nav to fill */
    overflow-y: auto; /* Sidebar scrolls if content exceeds height */
    flex-shrink: 0;
    transition: background-color var(--transition-speed-normal) ease, border-color var(--transition-speed-normal) ease, width var(--transition-speed-normal) ease;
    position: fixed;
    left: 0;
    top: var(--topbar-height);
    bottom: 0;
    z-index: 1020; /* Below topbar, above main content potentially */
}

.main-content {
    flex-grow: 1;
    padding: 25px; /* Consistent padding */
    background-color: var(--bg-secondary);
    overflow-y: auto; /* Main content area is the primary scroll region */
    margin-left: var(--sidebar-width); /* Offset for fixed sidebar */
    transition: background-color var(--transition-speed-normal) ease, margin-left var(--transition-speed-normal) ease;
}

/* General section header within main-content */
.content-header {
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}
.content-header h1 {
    margin-bottom: 5px;
    font-size: 1.8rem; /* Standardized content header H1 */
}
.content-header p { /* Subtitle/description */
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 0;
}

.sidebar nav ul li a p {
 margin-bottom: 0px;   
}

/* Responsive adjustments for layout */
@media (max-width: 1468px) {
    .sidebar nav ul li a p {
        width: 0; /* Hide sidebar by default on small screens */
        /* Add transform: translateX(-100%); for a slide-out effect if you add a toggle */
        border-right: none;
        padding: 0;
        display:none;
    }
    
    .sidebar nav ul li a {
        justify-content: center;
    }
}