/* General Page Styles */
body {
    font-family: Arial, sans-serif;
    text-align: center;
    margin: 0;
    padding: 0;
    background-color: #f5f5f5;
}

h1 {
    font-size: 2rem;
    margin: 20px 0;
}

/* Month Navigation */
#month-navigation {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    gap: 10px;
}

.nav-button {
    background-color: #007bff;
    color: white;
    border: none;
    padding: 10px;
    font-size: 1.2rem;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.nav-button:hover {
    background-color: #0056b3;
}

#month-year {
    font-size: 1.5rem;
    font-weight: bold;
}

/* Calendar Container */
#calendar {
    display: grid;
    grid-template-columns: repeat(7, 1fr); /* Seven columns for days of the week */
    gap: 10px;
    max-width: 800px;
    margin: 0 auto;
    background-color: #ffffff;
    padding: 10px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

/* Day Names Row */
.day-name {
    text-align: center;
    font-weight: bold;
    text-transform: uppercase;
    padding: 10px 0;
    background-color: #f0f0f0;
    border-bottom: 2px solid #ccc;
    font-size: 0.9rem;
}

/* Individual Day Cells */
.day {
    border: 1px solid #ccc;
    padding: 10px;
    text-align: center;
    background-color: #f9f9f9;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    font-size: 0.9rem;
}

.day:hover {
    background-color: #eef;
    cursor: pointer;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.day.empty {
    background-color: transparent;
    border: none;
    pointer-events: none;
}

/* Strong Tag for Dates */
.day strong {
    display: block;
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: #333;
}

.current-day {
    border: 2px solid red;
    border-radius: 4px;
    box-sizing: border-box;
}

/* Login and Logout Forms */
#login,
#logout {
    margin-top: 20px;
}

#login form,
#logout form {
    display: inline-block;
    background-color: #ffffff;
    padding: 15px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

#login input,
#logout button {
    font-size: 1rem;
    padding: 10px;
    margin: 5px;
    border: 1px solid #ccc;
    border-radius: 4px;
    width: calc(100% - 24px);
}

#login button {
    background-color: #007bff;
    color: #fff;
    cursor: pointer;
    border: none;
    transition: background-color 0.3s ease;
}

#login button:hover {
    background-color: #0056b3;
}

#logout button {
    background-color: #dc3545;
    color: white;
    cursor: pointer;
    border: none;
    padding: 10px 15px;
    border-radius: 4px;
    display: flex; /* Enables flexbox layout */
    justify-content: center; /* Centers content horizontally */
    align-items: center; /* Centers content vertically */
    text-align: center; /* Ensures text alignment */
    transition: background-color 0.3s ease;
}

#logout button:hover {
    background-color: #a71d2a;
}

/* Responsive Design */
@media (max-width: 600px) {
    #calendar {
        gap: 5px;
        padding: 5px;
    }

    .day {
        font-size: 0.8rem;
        padding: 8px;
    }

    .day-name {
        font-size: 0.8rem;
    }

    #month-year {
        font-size: 1.2rem;
    }
}

/* Popup Styles */
.popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.popup-content {
    background: white;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    max-width: 90%;
}

.popup-content strong {
    display: block;
    font-size: 1.2rem;
    margin-bottom: 10px;
}

#close-popup {
    display: block;
    margin: 20px auto 0; /* Adds space between text and button */
    padding: 10px 20px;
    border: none;
    background-color: #dc3545;
    color: white;
    border-radius: 4px;
    cursor: pointer;
}

#close-popup:hover {
    background-color: #a71d2a;
}

/* Responsive Design for Mobile Devices */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }
    
    h1 {
        font-size: 1.5rem;
    }
    
    #month-navigation {
        flex-direction: column;
        gap: 5px;
    }
    
    .nav-button {
        font-size: 1rem;
        padding: 8px;
        width: 100%; /* Full width buttons for easier tapping */
    }
    
    table {
        font-size: 0.9rem;
    }
    
    th, td {
        padding: 5px;
        word-wrap: break-word;
    }
    
    #calendar {
        overflow-x: auto; /* Enable horizontal scrolling for tables */
    }
}