* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'IBM Plex Sans', system-ui, sans-serif;
    overflow: hidden;
    height: 100vh;
}

::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: #4b5563;
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: #6b7280;
}

.dark ::-webkit-scrollbar-thumb {
    background: #374151;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(20px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes pulse-skeleton {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 0.8; }
}

.animate-fade-in {
    animation: fadeIn 0.3s ease-out forwards;
}

.animate-slide-in {
    animation: slideIn 0.25s ease-out forwards;
}

.skeleton {
    animation: pulse-skeleton 1.5s ease-in-out infinite;
    background: linear-gradient(90deg, #e5e7eb 25%, #f3f4f6 50%, #e5e7eb 75%);
    background-size: 200% 100%;
}

.dark .skeleton {
    background: linear-gradient(90deg, #1f2937 25%, #374151 50%, #1f2937 75%);
    background-size: 200% 100%;
}

.kanban-card {
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.kanban-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.dark .kanban-card:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.4);
}

.nav-item {
    transition: all 0.15s ease;
}

.nav-item:hover {
    background: rgba(255,255,255,0.05);
}

.nav-item.active {
    background: rgba(99, 102, 241, 0.15);
    border-left: 3px solid #6366f1;
}

.toast-enter {
    animation: slideIn 0.3s ease-out;
}

.stat-card {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.stat-card:hover {
    transform: translateY(-2px);
}