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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container-main {
    max-width: 900px;
    margin: 0 auto;
}

.dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-right: 8px;
}

.dot-urgente {
    background-color: #ef4444;
}

.dot-normal {
    background-color: #22c55e;
}

.dot-luego {
    background-color: #f97316;
}

.task-item {
    transition: all 0.2s ease;
}

.task-item:hover {
    transform: translateX(4px);
}

.task-completed {
    opacity: 0.6;
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Estilos adicionales para mejor UX */

.filter-btn {
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn:active {
    transform: scale(0.95);
}

input[type="text"],
select {
    font-size: 16px;
}

input[type="checkbox"] {
    cursor: pointer;
    accent-color: #9333ea;
}

button {
    cursor: pointer;
    font-weight: 600;
}

/* Scrollbar personalizado */
div::-webkit-scrollbar {
    width: 8px;
}

div::-webkit-scrollbar-track {
    background: #f1f5f9;
    border-radius: 10px;
}

div::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 10px;
}

div::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}