/* Layout for the App (Sidebar + Main Content) */
#app-container {
    display: flex;
    height: 100vh;
    overflow: hidden;
    width: 100vw;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 24px 0;
    z-index: 10;
    transition: width 0.3s;
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 24px 32px 24px;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
}

.sidebar-logo img {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(106,76,255,0.5);
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 0 16px;
}

.nav-group-title {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    padding-left: 12px;
    font-weight: 600;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
    margin-bottom: 4px;
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    text-decoration: none;
}

.nav-item:hover {
    background-color: rgba(255,255,255,0.03);
    color: var(--text-primary);
}

.nav-item.active {
    background-color: rgba(106, 76, 255, 0.15);
    color: var(--accent-purple);
    border-left: 3px solid var(--accent-purple);
}

.nav-item .icon {
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
}

.nav-footer {
    padding: 24px 16px 0 16px;
    margin-top: auto;
    border-top: 1px solid var(--border-color);
}

.logout-link {
    color: var(--accent-red);
}
.logout-link:hover {
    background-color: rgba(255,77,77,0.1);
    color: var(--accent-red);
}

/* Main Content Area */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    background-color: var(--bg-main);
}

/* Topbar */
.topbar {
    height: 80px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 40px;
    border-bottom: 1px solid var(--border-color);
    background-color: var(--bg-main) !important;
    position: sticky;
    top: 0;
    z-index: 5;
    flex-shrink: 0;
}

.topbar-center {
    display: flex;
    align-items: center;
    gap: 16px;
    background-color: var(--bg-sidebar);
    padding: 8px 16px;
    border-radius: 30px;
    border: 1px solid var(--border-color);
}

.topbar-time {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

/* Mobile Responsive Adjustments */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        position: fixed;
        z-index: 2000;
        transition: transform 0.3s ease;
        box-shadow: 20px 0 40px rgba(0,0,0,0.5);
    }
    .sidebar.mobile-open {
        transform: translateX(0);
    }
    .mobile-menu-btn {
        display: flex !important;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        background: var(--bg-card);
        border: 1px solid var(--border-color);
        border-radius: 8px;
        cursor: pointer;
    }
    .page-content {
        margin-left: 0;
    }
.page-body {
    flex: 1;
    overflow-y: auto;
    padding: 40px;
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
}
    .topbar-center {
        display: none; /* Hide date/time on mobile topbar if too cramped */
    }
}

.icon-button {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: color 0.2s;
    position: relative;
}
.icon-button:hover {
    color: var(--text-primary);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
}
.user-info {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}
.user-name {
    font-weight: 600;
    font-size: 0.95rem;
}
.user-role {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--accent-purple);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: white;
    box-shadow: var(--shadow-neon);
}
.user-avatar img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
}

/* Page Content */
.page-container {
    padding: 40px;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

.page-header {
    margin-bottom: 32px;
}

.page-title {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.page-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
}

/* Grid System */
.module-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 24px;
    margin-top: 40px;
}

/* Mobile Adjustments */
@media (max-width: 1024px) {
    .sidebar { width: 80px; }
    .nav-item span { display: none; }
    .sidebar-logo span { display: none; }
    .nav-group-title { display: none; }
}

@media (max-width: 768px) {
    .app-container { flex-direction: column; }
    .sidebar { width: 100%; height: auto; flex-direction: row; padding: 10px; overflow-x: auto; border-bottom: 1px solid var(--border-color); border-right: none; }
    .sidebar-logo, .nav-group-title { display: none; }
    .nav-footer { border: none; margin: 0; padding: 0; }
    .nav-item { flex-direction: column; padding: 8px; margin: 0; }
    .topbar { padding: 0 16px; }
    .topbar-center { display: none; }
    .page-container { padding: 20px; }
    .module-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 16px; }
}