/* --- BASE STYLES --- */
body { 
    font-family: 'Inter', sans-serif; 
    background: #ffffff; 
    color: #000000; 
    overflow: hidden; 
    height: 100dvh; 
}

/* --- CUSTOM SCROLLBAR --- */
::-webkit-scrollbar { 
    width: 5px; 
}
::-webkit-scrollbar-thumb { 
    background: #e5e5e5; 
    border-radius: 10px; 
}
::-webkit-scrollbar-thumb:hover { 
    background: #cccccc; 
}

/* --- DRAG & DROP OVERLAY --- */
#drag-overlay { 
    transition: opacity 0.2s; 
    background: rgba(255, 255, 255, 0.9); 
    backdrop-filter: blur(4px); 
}
.drag-active { 
    opacity: 1 !important; 
    pointer-events: auto !important; 
    z-index: 100; 
}

/* --- SIDEBAR ANIMATIONS --- */
.sidebar { 
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1); 
}
.sidebar-open { 
    transform: translateX(0); 
}
.sidebar-closed { 
    transform: translateX(-100%); 
}
@media (min-width: 768px) { 
    .sidebar-closed { transform: translateX(0); } 
}

/* --- MARKDOWN OVERRIDES (For AI Responses) --- */
.markdown-body pre { 
    background: #f9fafb; 
    border: 1px solid #e5e5e5; 
    padding: 12px; 
    border-radius: 8px; 
    overflow-x: auto; 
    font-size: 0.85rem; 
    margin: 10px 0; 
}
.markdown-body code { 
    font-family: monospace; 
    background: #f3f4f6; 
    padding: 2px 4px; 
    border-radius: 4px; 
    font-size: 0.85rem; 
}
.markdown-body pre code { 
    background: transparent; 
    padding: 0; 
}
.markdown-body p { 
    margin-bottom: 0.75rem; 
    line-height: 1.6; 
}
.markdown-body strong { 
    font-weight: 600; 
}
.markdown-body ul { 
    list-style-type: disc; 
    margin-left: 20px; 
    margin-bottom: 8px; 
}

/* --- LOADING SPINNER ANIMATION --- */
.spinner { 
    animation: spin 1s linear infinite; 
}
@keyframes spin { 
    from { transform: rotate(0deg); } 
    to { transform: rotate(360deg); } 
}