/* Global Styles & Duolingo-inspired Palette */
:root {
    --duo-blue-dark: #123c72; /* Deeper blue for text/accents */
    --duo-blue-medium: #1cb0f6; /* Main Duolingo blue */
    --duo-blue-light: #dff0fe; /* Very light blue for backgrounds */
    --duo-green: #58cc02; /* Button success/completion */
    --duo-orange: #ff9600; /* Highlight/alert */
    --duo-gray: #e5e5e5; /* Borders, separators */
    --duo-text-dark: #3c3c3c;
    --duo-text-light: #ffffff;
    --duo-shadow: rgba(0, 0, 0, 0.1);
    --duo-border-radius: 8px;
    --duo-font-body: 'Lato', sans-serif;
    --duo-font-heading: 'Montserrat', sans-serif;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--duo-font-body);
    line-height: 1.6;
    color: var(--duo-text-dark);
    background-color: var(--duo-blue-light);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    width: 100%;
}

/* Header */
.main-header {
    background-color: var(--duo-blue-medium);
    color: var(--duo-text-light);
    padding: 15px 0;
    box-shadow: 0 2px 4px var(--duo-shadow);
}

.main-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    color: var(--duo-text-light);
    text-decoration: none;
    font-family: var(--duo-font-heading);
    font-size: 1.8em;
    font-weight: 900;
}

.logo-icon {
    font-size: 1.2em; /* Adjust to better fit the font-size of the text */
    margin-right: 10px;
    /* Adjust icon color or style if you have an SVG */
}

/* Main Content Area */
main {
    flex-grow: 1;
    padding: 40px 20px;
}

/* Search Section */
.search-section {
    background-color: var(--duo-text-light);
    padding: 30px;
    border-radius: var(--duo-border-radius);
    box-shadow: 0 4px 10px var(--duo-shadow);
    margin-bottom: 40px;
    text-align: center;
}

.search-section h1 {
    font-family: var(--duo-font-heading);
    font-size: 2.8em;
    color: var(--duo-blue-dark);
    margin-bottom: 20px;
    line-height: 1.2;
}

.search-form {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
    align-items: stretch; /* Make inputs stretch to same height */
    margin-top: 20px;
}

.search-form input[type="text"],
.search-form select {
    padding: 12px 18px;
    border: 2px solid var(--duo-gray);
    border-radius: var(--duo-border-radius);
    font-size: 1.1em;
    outline: none;
    transition: border-color 0.3s ease;
    flex-grow: 1;
    min-width: 180px; /* Ensure inputs don't get too small */
}

.search-form input[type="text"]:focus,
.search-form select:focus {
    border-color: var(--duo-blue-medium);
}

.search-form button {
    background-color: var(--duo-green);
    color: var(--duo-text-light);
    padding: 12px 25px;
    border: none;
    border-radius: var(--duo-border-radius);
    font-size: 1.1em;
    font-weight: 700;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
}

.search-form button:hover {
    background-color: #4CAF50; /* Slightly darker green */
    transform: translateY(-2px);
}

.search-form .radio-group {
    display: flex;
    gap: 15px;
    align-items: center;
    justify-content: center;
    padding: 10px;
    background-color: var(--duo-blue-light);
    border-radius: var(--duo-border-radius);
    flex-wrap: wrap;
}

.search-form .radio-group label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 1em;
    color: var(--duo-blue-dark);
}

.search-form .radio-group input[type="radio"] {
    margin-right: 8px;
    appearance: none; /* Hide default radio button */
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border: 2px solid var(--duo-blue-medium);
    border-radius: 50%;
    position: relative;
    cursor: pointer;
    outline: none;
    transition: all 0.2s ease;
}

.search-form .radio-group input[type="radio"]:checked {
    background-color: var(--duo-blue-medium);
    border-color: var(--duo-blue-dark);
}

.search-form .radio-group input[type="radio"]:checked::before {
    content: '';
    display: block;
    width: 8px;
    height: 8px;
    background-color: var(--duo-text-light);
    border-radius: 50%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* Results Section */
.results-section h2 {
    font-family: var(--duo-font-heading);
    font-size: 2em;
    color: var(--duo-blue-dark);
    text-align: center;
    margin-bottom: 30px;
}

#results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.result-item {
    background-color: var(--duo-text-light);
    border-radius: var(--duo-border-radius);
    box-shadow: 0 4px 8px var(--duo-shadow);
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between; /* Push description up, button down */
}

.result-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.result-item img,
.result-item video {
    width: 100%;
    height: 200px; /* Fixed height for consistency */
    object-fit: cover; /* Cover the area, crop if necessary */
    display: block;
    background-color: #f0f0f0; /* Placeholder background */
}

.result-item .item-details {
    padding: 15px;
    flex-grow: 1; /* Allow details to take available space */
    display: flex;
    flex-direction: column;
}

.result-item .item-details h3 {
    font-family: var(--duo-font-heading);
    font-size: 1.2em;
    color: var(--duo-blue-dark);
    margin-bottom: 10px;
    height: 3.6em; /* Fixed height for 2 lines of text */
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.result-item .item-details p {
    font-size: 0.9em;
    color: #666;
    margin-bottom: 10px;
}

.result-item .item-actions {
    padding: 0 15px 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
}

.result-item .item-actions .source {
    font-size: 0.8em;
    color: #888;
}
.result-item .item-actions .source svg {
    margin-right: 5px;
    vertical-align: middle;
}

.download-link {
    background-color: var(--duo-blue-medium);
    color: var(--duo-text-light);
    padding: 8px 15px;
    border: none;
    border-radius: 20px; /* More rounded for buttons */
    font-size: 0.9em;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    flex-shrink: 0; /* Prevent button from shrinking */
}

.download-link:hover {
    background-color: #1a9cdb; /* Slightly darker */
    transform: translateY(-1px);
}

.loading-indicator {
    text-align: center;
    padding: 50px;
    font-size: 1.2em;
    color: var(--duo-blue-dark);
    display: none; /* Hidden by default */
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin-top: 40px;
    padding: 20px 0;
}

.pagination button {
    background-color: var(--duo-blue-medium);
    color: var(--duo-text-light);
    padding: 10px 20px;
    border: none;
    border-radius: var(--duo-border-radius);
    font-size: 1em;
    font-weight: 700;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.pagination button:hover:not(:disabled) {
    background-color: #1a9cdb;
    transform: translateY(-2px);
}

.pagination button:disabled {
    background-color: var(--duo-gray);
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
}

.pagination .current-page {
    font-size: 1.1em;
    font-weight: 700;
    color: var(--duo-blue-dark);
}

/* Alerts and Messages */
#message-area {
    text-align: center;
    padding: 20px;
    margin-top: 20px;
    border-radius: var(--duo-border-radius);
    background-color: var(--duo-orange);
    color: var(--duo-text-light);
    font-weight: 700;
    display: none; /* Hidden by default */
}

/* Footer */
.main-footer {
    background-color: var(--duo-blue-dark);
    color: var(--duo-text-light);
    text-align: center;
    padding: 20px 0;
    margin-top: 50px;
    box-shadow: 0 -2px 4px var(--duo-shadow);
}

.main-footer p {
    margin: 5px 0;
    font-size: 0.9em;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .main-header .container {
        flex-direction: column;
        gap: 10px;
    }

    .main-nav {
        margin-top: 10px;
    }

    .search-form {
        flex-direction: column;
        align-items: stretch;
    }

    .search-form input[type="text"],
    .search-form select,
    .search-form button {
        width: 100%;
        margin-bottom: 10px;
    }

    .search-form .radio-group {
        width: 100%;
        justify-content: space-around;
        padding: 5px;
    }

    .results-grid {
        grid-template-columns: 1fr;
    }
}