body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    color: #000000;
}

.container-fluid {
    padding: 0;
    margin: 0;
}

.img {
    width: 100%;
    height: auto;
    display: block;
}

.container {
    width: 80%;
    margin: auto;
    padding: 20px;
}

.header {
    margin-bottom: -80px;
    text-align: center;
}

.navbar {
    background-color: #4bc0c0;
    border: 1px solid #000000;
    overflow: hidden;
    display: flex;
    justify-content:center;
}

.navbar ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    display: flex;
}

.navbar li {
    margin: 0;
    padding: 0;
}

.navbar a {
    display: block;
    color: rgb(0, 0, 0);
    text-decoration: none;
    text-align: center;
    padding: 14px 20px;
    transition: transform 0.2s ease, color 0.2s ease;
}

.navbar a:hover {
    transform: scale(1.1);
    color: #000000;
}

h1 {
    text-align: center;
    font-size: 2.5em;
    color: #000000;
    font-family: Arial, sans-serif;
    margin-top: 0px;
    margin-bottom:10px;
    
}

h2 {
    display: flex;
    justify-content: center;
    margin-top: 50px;
    margin-bottom: 0;
    flex-wrap: nowrap;
}

.logout-btn {
    position: fixed;bottom: 20px;right: 20px; padding: 10px 20px;background-color: red;color: white;border: none; border-radius: 5px; cursor: pointer;
}

button {
    background: white;
    border: 1px solid #0074cc;
    border-radius: 10px;
    margin: 20px 20px;
    padding: 30px 80px;
    font-size: 1em;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    transition: transform 0.3s, background-color 0.3s;
    display: flex;
    justify-content: space-around;
}

button:hover {
    transform: translateY(-5px);
    background-color: #d1e8ff;
}

.hidden {
    display: none;
}

/* Graph Container - Set as Positioning Reference */
.pd_graphContainer, .pm_graphContainer {
    position: relative;
    width: 800px;
    height: 400px;
    margin: auto;
}

/* Spinner inside Graph Container */
#loading_pd, #loading_pm {
    display: none; /* Hidden by default */
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 10;
    text-align: center;
    background: rgba(245, 248, 247, 0.9);
    padding: 20px;
    border-radius: 10px;
    border-style: ridge;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

/* Spinner Animation */
.spinner {
    width: 50px;
    height: 50px;
    margin: 0 auto;
    border: 5px solid transparent;
    border-top: 5px solid #7388e4;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}


#select-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 20px;
}

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

/* Button container styling */
#button-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
    width: 80%;
    justify-items: center;
    margin: auto;
}

/* General button styling */
button {
    background: white;
    border: 1px solid #0074cc;
    border-radius: 10px;
    margin: 10px 0;
    padding: 20px 40px;
    font-size: 0.8em;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    transition: transform 0.3s, background-color 0.3s;
    display: flex;
    justify-content: center;
}

/* Hover effect for buttons */
button:hover {
    background-color: #caffff;
}

/* Selected button styling */
button.selected {
    background-color: #4bc0c0 !important;
    color: rgb(0, 0, 0);
}

input.error {
    border: 2px solid red;
}