:root {
    --primary-color: #3d5afe;
    --secondary-color: #ff4081;
    --background-color: #f5f5f5;
    --font-color: #333;
    --white: #fff;
    --grey: #eee;
    --dark-grey: #9e9e9e;
    --red: #f44336;
    --blue: #2196f3;
    --green: #4caf50;
    --orange: #ff9800;
}

body {
    font-family: 'Arial', sans-serif;
    background-color: var(--background-color);
    color: var(--font-color);
    margin: 0;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 20px;
}

h1 {
    color: var(--primary-color);
}

.filter-container {
    background-color: var(--white);
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.filter-container .country-filter, .filter-container .event-type-filter {
    margin-bottom: 15px;
}

.filter-container label {
    margin-right: 15px;
}

#apply-filters {
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

#apply-filters:hover {
    background-color: var(--secondary-color);
}

.calendar-views {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

#monthly-view, #weekly-view {
    background-color: var(--white);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.calendar-header button {
    background: none;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    cursor: pointer;
    padding: 5px 10px;
    border-radius: 5px;
}

.calendar-table {
    width: 100%;
    border-collapse: collapse;
    table-layout: fixed;
    margin-bottom: 20px;
    border: 1px solid var(--dark-grey);
}

.calendar-table th {
    background-color: var(--grey);
    padding: 10px;
    border: 1px solid var(--dark-grey);
    text-align: center;
    font-weight: bold;
}

.calendar-table td {
    min-height: 100px;
    border: 1px solid var(--dark-grey);
    padding: 5px;
    vertical-align: top;
    height: 120px;
}

.calendar-day-header {
    font-weight: bold;
    margin-bottom: 5px;
    display: block;
}

.event {
    font-size: 0.8em;
    padding: 2px 4px;
    border-radius: 3px;
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}


.event.holiday {
    background-color: var(--red);
    color: var(--white);
}

.event.economic-indicator {
    background-color: var(--blue);
    color: var(--white);
}

.event button {
    background-color: var(--secondary-color);
    color: var(--white);
    border: none;
    padding: 2px 5px;
    font-size: 0.8em;
    border-radius: 3px;
    cursor: pointer;
    margin-top: 5px;
    display: block;
}

.modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: var(--white);
    padding: 30px;
    border-radius: 8px;
    z-index: 1001;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    width: 80%;
    max-width: 500px;
}

#modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    z-index: 1000;
}

.hidden {
    display: none;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

#close-modal {
    background: none;
    border: none;
    font-size: 1.5em;
    cursor: pointer;
}

.modal-content-item {
    margin-bottom: 15px;
}

.modal-content-item h4 {
    margin-top: 0;
    color: var(--primary-color);
}