:root {
    --light-bg: #f0f4f8;
    --primary-text: #0d274d;
    --accent-color: #d81b60;
    --white: #ffffff;
    --dark-text: #333333;
    --border-color: #dee2e6;
    --shadow-color: rgba(0, 0, 0, 0.05);
}

body {
    font-family: sans-serif;
    margin: 0;
    background-color: var(--light-bg);
    color: var(--dark-text);
}

header {
    background-color: var(--primary-text);
    color: var(--white);
    padding: 1rem;
    text-align: center;
    border-bottom: 4px solid var(--accent-color);
}

nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: center;
}

nav ul li {
    margin: 0 1rem;
    position: relative;
}

nav a {
    color: var(--white);
    text-decoration: none;
    transition: color 0.3s ease;
}

nav a:hover {
    color: var(--accent-color);
}

.dropdown-content {
    display: none;
    position: absolute;
    background-color: var(--primary-text);
    min-width: 160px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
    z-index: 1;
    border-radius: 0 0 5px 5px;
}

.dropdown-content a {
    color: var(--white);
    padding: 12px 16px;
    text-decoration: none;
    display: block;
    text-align: left;
}

.dropdown:hover .dropdown-content {
    display: block;
}

main {
    padding: 1rem;
}

.main-content {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
}

section {
    background-color: var(--white);
    padding: 1.5rem;
    margin-bottom: 1rem;
    border-radius: 12px;
    flex: 1;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 12px var(--shadow-color);
}

h2 {
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
    color: var(--primary-text);
}

.form-group {
    margin-bottom: 1rem;
}

.form-group > label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: bold;
    color: #555;
}

.form-group div {
    display: flex;
    align-items: center;
    margin-bottom: 0.5rem;
}

.inline-group {
    display: flex;
    flex-direction: row;
}

.inline-group div {
    margin-right: 1.5rem;
}

.stacked-items > button,
.stacked-items > a,
.stacked-items > img {
    display: block;
    margin-bottom: 1rem; 
}

.form-group div input[type="radio"],
.form-group div input[type="checkbox"] {
    margin-right: 0.5rem;
}

.form-group div label {
    margin-bottom: 0;
    font-weight: normal;
}

label {
    display: block;
    margin-bottom: 0.5rem;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="date"],
select,
textarea {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 3px;
    background-color: #fdfdfd;
}

button {
    padding: 0.5rem 1.5rem;
    border: none;
    background-color: var(--accent-color);
    color: var(--white);
    border-radius: 25px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #b81450;
}

button:disabled {
    background-color: #ccc;
    cursor: not-allowed;
    opacity: 0.7;
}

#suggestion-list {
    border: 1px solid var(--border-color);
    border-top: none;
    border-radius: 0 0 3px 3px;
}

#suggestion-list div {
    padding: 0.5rem;
    cursor: pointer;
}

#suggestion-list div:hover {
    background-color: #eee;
}

#drag-source {
    width: 100px;
    height: 100px;
    background-color: lightblue;
    text-align: center;
    line-height: 100px;
    cursor: move;
    border-radius: 5px;
}

#download-link{
    display: inline-block;
    margin-bottom: 1rem;
}

#drop-target {
    width: 100px;
    height: 100px;
    border: 2px dashed var(--border-color);
    text-align: center;
    line-height: 100px;
    border-radius: 5px;
}

.loader {
    border: 10px solid #f3f3f3;
    border-top: 10px solid var(--primary-text);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
}

hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 2rem 0;
}

a {
    color: var(--accent-color);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

header nav a {
    color: var(--white);
    text-decoration: none;
}

.svg-element circle {
    stroke: var(--primary-text);
    stroke-width: 2;
    fill: var(--light-bg);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

#data-table, #scroll-table {
    width: 100%;
    border-collapse: collapse;
}

#data-table th, #data-table td, #scroll-table th, #scroll-table td {
    border: 1px solid var(--border-color);
    padding: 8px;
}

#data-table th, #scroll-table th {
    background-color: #f2f2f2;
}

#pagination-controls {
    margin-top: 1rem;
}

#pagination-controls button {
    margin: 0 0.2rem;
}

#pagination-controls .page-number {
    display: inline-block;
    padding: 0.5rem;
    cursor: pointer;
}

#pagination-controls .page-number.active {
    font-weight: bold;
}

#scrollable-table-container {
    height: 200px;
    overflow-y: scroll;
    border: 1px solid var(--border-color);
}

footer {
    background-color: var(--primary-text);
    color: var(--white);
    text-align: center;
    padding: 1rem;
    margin-top: 2rem;
    border-top: 4px solid var(--accent-color);
}

footer a {
    color: var(--white);
}

@media (max-width: 768px) {
    .main-content {
        flex-direction: column;
    }
}