/* ========================================
   SHARED VARIABLES & UTILITIES
   ======================================== */

:root {
    /* Colors */
    --primary-dark: #003366;
    --primary-medium: #336699;
    --accent-green: #4CAF50;
    --accent-yellow: #FFEB3B;
    --neutral-bg: #F8FAFC;
    --white: #FFFFFF;
    --text-primary: #1a202c;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    
    /* Border Radius */
    --radius-lg: 16px;
    --radius-md: 12px;
    
    /* Transitions */
    --transition: all 0.2s ease;
}

/* ========================================
   BASE STYLES
   ======================================== */

body {
    background-color: var(--neutral-bg);
}

/* ========================================
   MAIN LAYOUT
   ======================================== */

.main-container {
    max-width: 1200px;
    margin: -4rem auto 4rem;
    padding: 0 1.5rem;
    position: relative;
    z-index: 5;
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 2rem;
}

/* ========================================
   SIDEBAR
   ======================================== */

.sidebar-wrapper {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* ========================================
   FEED
   ======================================== */

.feed-wrapper {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* ========================================
   RESPONSIVE
   ======================================== */

@media (max-width: 992px) {
    .main-container {
        grid-template-columns: 1fr;
    }
    
    .sidebar-wrapper {
        display: none;
    }
}

@media (max-width: 768px) {
    .main-container {
        padding: 0 1rem;
        margin-top: -3rem;
    }
}