.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    min-height: 100vh;
    padding: 32px 36px;
    transition: margin-left 0.3s ease;
}

.main-header {
    margin-bottom: 28px;
}

.main-header h2 {
    font-size: 1.65rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.main-header p {
    color: var(--text-secondary);
    font-size: 0.88rem;
    margin: 4px 0 0;
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .sidebar-toggle {
        display: none;
    }

    .main-content {
        margin-left: 0;
        padding: 24px 16px;
        padding-bottom: calc(16px + env(safe-area-inset-bottom, 0px));
    }
}

/* PWA Standalone Mode */
@media (display-mode: standalone) {
    .main-content {
        padding-top: calc(32px + env(safe-area-inset-top, 0px));
    }

    @media (max-width: 768px) {
        .main-content {
            padding-top: calc(24px + env(safe-area-inset-top, 0px));
            padding-bottom: calc(16px + env(safe-area-inset-bottom, 0px));
        }
    }
}

/* ---------- Scrollbar ---------- */
.sidebar-nav::-webkit-scrollbar {
    width: 3px;
}

.sidebar-nav::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

.sidebar-nav::-webkit-scrollbar-track {
    background: transparent;
}

/* ---------- Selection ---------- */
::selection {
    background: var(--accent);
    color: #fff;
}

/* ---------- Stat Cards ---------- */