/* Global Vars */
:root {
    --bg-dark: #0f172a;
    --bg-card: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent: #4f46e5;       /* Indigo 600 */
    --accent-hover: #4338ca; /* Indigo 700 */
    --success: #10b981;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    min-height: 100vh;
}

/* Utilities not in Tailwind (if we use CDN) */
.custom-scrollbar::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
.custom-scrollbar::-webkit-scrollbar-track {
    background: #1e293b; 
}
.custom-scrollbar::-webkit-scrollbar-thumb {
    background: #475569; 
    border-radius: 3px;
}
.custom-scrollbar::-webkit-scrollbar-thumb:hover {
    background: #64748b; 
}

/* Common Classes */
.btn-primary {
    @apply bg-indigo-600 hover:bg-indigo-700 text-white font-bold py-2 px-6 rounded-xl transition-all shadow-lg shadow-indigo-900/20 active:scale-95;
}

.card {
    background-color: var(--bg-card);
    border: 1px solid #334155;
    border-radius: 1rem;
}

/* Canvas Transparency Grid Background */
.bg-grid-pattern {
    background-image:
        linear-gradient(45deg, #1e293b 25%, transparent 25%),
        linear-gradient(-45deg, #1e293b 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #1e293b 75%),
        linear-gradient(-45deg, transparent 75%, #1e293b 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
}