:root {
    --black: #000;
    --white: #fff;
    --gray-bg: #f4f4f4;
    --border: 1px solid #000;
}

body { font-family: Arial, sans-serif; margin: 0; padding: 0; }
.container { max-width: 1100px; margin: 0 auto; padding: 20px; }

/* Navbar & Filter */
.navbar { display: flex; justify-content: space-between; padding: 20px 5%; border-bottom: var(--border); }
.category-group { display: flex; gap: 20px; margin-bottom: 40px; flex-wrap: wrap; }
.category-item { cursor: pointer; text-align: center; font-size: 11px; font-weight: bold; }
.square { width: 50px; height: 50px; border: var(--border); margin-bottom: 5px; }
.category-item.active .square { background: var(--black); }

/* Event Cards */
.event-list { display: flex; flex-direction: column; gap: 20px; }
.event-card { 
    display: grid; 
    grid-template-columns: 200px 1fr 150px 150px 50px; 
    border: var(--border); 
    align-items: center; 
}
.event-image { height: 150px; background-size: cover; background-position: center; border-right: var(--border); }
.event-content, .event-info, .event-cta { padding: 15px; }
.tag { border: var(--border); padding: 3px 10px; border-radius: 15px; font-size: 10px; margin-right: 5px; }
.btn-primary { background: var(--black); color: var(--white); border: none; padding: 10px; width: 100%; cursor: pointer; font-weight: bold; }

/* Empty State Style */
.empty-state {
    text-align: center;
    padding: 50px 20px;
    border: 2px dashed #ccc;
    background: var(--gray-bg);
    margin-top: 20px;
}
.btn-outline {
    background: transparent;
    border: 2px solid var(--black);
    padding: 12px 25px;
    font-weight: bold;
    cursor: pointer;
    margin-top: 15px;
    transition: 0.3s;
}
.btn-outline:hover { background: var(--black); color: var(--white); }

/* Responsive */
@media (max-width: 850px) {
    .event-card { grid-template-columns: 1fr; }
    .event-image { border-right: none; border-bottom: var(--border); width: 100%; }
}