/* Basic Reset & Typography */
:root {

    --primary-color: #f25d22; 
    --secondary-color: #e5e1da; 

    --background-light: #f6f6f6; 
    --background-dark: #d1d1d1; 

    --text-color: #171717; 
    --border-color: #d6d6d6; 

    --card-background: #fdfdfd; 
    --shadow-light: rgba(67, 63, 61, 0.05); 

    --header-footer-bg: #dc7349; 
    --header-footer-text: #fdfcfb; 

    --success-color: #28a745; 
    --locked-overlay-color: rgba(238, 238, 238, 0.55); 

}




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

html, body {
    height: auto;
    width: auto;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-light);
    display: flex;
    flex-direction: column; /* Arrange sections vertically */
    min-height: 100vh;
}

/* Header Section */
.header {
    background-color: var(--header-footer-bg);
    color: var(--header-footer-text);
    padding: 20px 40px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.header h1 {
    margin: 5px;
    font-size: 2.5em;
    font-weight: 600;
    color: var(--header-footer-text);
}
/* Introduction Box Styling */
.introduction-box {
    background-color: var(--card-background);
    border-radius: 8px;
    box-shadow: 0 4px 15px var(--shadow-light);
    padding: 30px 40px;
    margin: 20px auto;
    max-width: 1900px; /* Match content-card max-width */
    width: 90%; /* Adjust width for responsiveness */
    text-align: left;
    color: var(--text-color);
}

.introduction-box h2 {
    font-size: 2em;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.introduction-box p {
    font-size: 1.1em;
    line-height: 1.8;
    margin-bottom: 10px;
    max-width: 1900px; /* Limit paragraph width for readability */
    margin-left: auto;
    margin-right: auto;
}
/* Main Content Wrapper */
.main-content {
    flex-grow: 1; 
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 40px 20px;
    padding-top: 20px; /* Add some space above the main content card */

}

/* Container for the main application logic (filters & results) */
.content-card {
    background-color: var(--card-background);
    border-radius: 8px;
    box-shadow: 0 4px 15px var(--shadow-light);
    padding: 40px;
    max-width: 1400px; 
    width: 100%;
    display: grid; 
    grid-template-columns: 1fr; 
    gap: 30px; 
    grid-template-rows: repeat(3, 1fr);
}

/* Styling for each individual section within the content-card */
.generic-selection-section,
.specific-characteristics-section,
.results-section {
    background-color: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 25px; 
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    position: relative; 
    transition: all 0.3s ease-in-out; 
    display: flex; 
    flex-direction: column;
    min-height: 0;
    max-height: none; 
    overflow-y: visible; 
    overflow-x: visible;
    grid-row-end: span 1;
    min-width: 0; 
}


/* Styling for a locked section */
.locked-section {
    filter: grayscale(50%) brightness(100%);
    pointer-events: none;
    user-select: none;
}

/* Overlay for locked sections */
.locked-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--locked-overlay-color); 
    border-radius: 8;
    z-index: 1;
}


/* Section Title Styling */
.section-title {
    font-size: 1.5em;
    color: var(--text-color);
    margin-bottom: 15px;
    border-bottom: 2px solid var(--background-dark);
    padding-bottom: 10px;
    flex-shrink: 0; 
}

/* Filter Group Styling*/
.selection-grid {
    display: grid;
    gap: 20px;
    flex-grow: 1; 
    width: 100%;
    min-width: 0;
}

.filter-group {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

label {
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-color);
}

select, input[type="text"] {
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 1em;
    width: 100%;
    background-color: var(--background-light);
    color: var(--text-color);
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 8px;
}

select:focus, input[type="text"]:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.25);
}

/* Checkbox specific styling*/
.checkbox-group {
    border: 1px solid var(--border-color);
    border-radius: 5px;
    padding: 12px;
    background-color: var(--background-light);
    display: flex;
    flex-direction: column;
    gap: 8px; 
    max-height: 350px; 
    overflow-y: auto;
    min-width: 0;
}

.checkbox-group#program-origin-checkboxes {
    max-height: 500px;
}

/* Style for the "Select All" checkbox label */
.checkbox-group .select-all-toggle {
    font-weight: 600; 
    color: var(--primary-color); 
    margin-bottom: 5px; 
    flex-shrink: 0; 
}

/* Style for the horizontal rule below "Select All" */
.checkbox-group .toggle-separator {
    border: none;
    border-top: 1px dashed var(--border-color);
    margin: 5px 0 10px 0; 
    flex-shrink: 0; 
}

/* Styles for the two-column program origin layout (Dominant/Non-Dominant) */
.output-type-columns {
    display: grid;
    grid-template-columns: 1fr; 
    gap: 15px; 
    padding-top: 5px;
    flex-grow: 1; 
    width: 100%;
    min-width: 0;
    overflow-y: auto;
}

.output-type-column {
    display: flex;
    flex-direction: column;
    gap: 5px;
    min-width: 0;
}

.output-type-toggle {
    color: var(--text-color); 
    flex-shrink: 0; 
}

/* Styles for nested algorithm groups */
.algorithm-groups {
    display: flex;
    flex-direction: column;
    gap: 5px; 
    margin-top: 10px; 
    min-width: 0; 
}

.algorithm-group {
    border: 1px solid var(--background-dark); 
    border-radius: 5px;
    padding: 8px;
    background-color: var(--card-background); 
    display: flex;
    flex-direction: column;
    gap: 5px;
    min-width: 0; 
}

.algorithm-group .algorithm-group-toggle {
    font-weight: 600; 
    color: var(--primary-color);
    flex-shrink: 0; 
}

.algorithm-group .group-separator {
    border: none;
    border-top: 1px dashed var(--border-light);
    margin: 3px 0 8px 0;
    flex-shrink: 0; 
}

.algorithm-group label {
    padding-left: 15px; 
    font-weight: 400; 
    white-space: normal; 
    word-break: break-word; 
}

/* Styles for the inner checkbox grid columns */
.checkbox-grid-columns {
    display: grid;
    grid-template-columns: 1fr 1fr; 
    gap: 10px; 
    padding-top: 5px; 
}

.checkbox-group label {
    display: flex;
    align-items: center;
    font-weight: 400; 
    margin-bottom: 0; 
    cursor: pointer;
    white-space: normal; 
    word-break: break-word; 
}

.checkbox-group input[type="checkbox"] {
    margin-right: 8px; 
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    width: 18px;
    height: 18px;
    border: 2px solid var(--primary-color);
    border-radius: 4px;
    position: relative;
    cursor: pointer;
    flex-shrink: 0; 
}

.checkbox-group input[type="checkbox"]:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.checkbox-group input[type="checkbox"]:checked::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 5px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}


/* --- File List Styling --- */

.file-list-outer-wrapper {
    min-height: 250px; 
    display: flex;
    flex-direction: column;
    overflow: visible; 
    flex-grow: 1;
}

.file-list-toggle-wrapper {
    background-color: var(--background-dark);
    padding: 10px 15px;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
    z-index: 3;
}

.file-list-toggle {
    color: var(--primary-color);
    font-weight: 600;
}

.file-list-grid-container {
    overflow-x: auto; 
    flex-grow: 1; 
    display: flex;
    flex-direction: column;
    position: relative;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    background-color: var(--background-light);
	overflow-y: auto;
    max-height: 750px;
}

/* Defines the column structure for both header and rows */
.file-list-header, .file-row {
    display: grid;
    grid-template-columns: 15px minmax(70px, 1fr) minmax(70px, 0.8fr) minmax(70px, 0.8fr) minmax(70px, 1fr) minmax(70px, 0.5fr) minmax(110px, 1fr) minmax(70px, 1fr);
    gap: 10px;
    padding-right: 10px;
    padding-left: 10px;
    min-width: 650px; 
}

.file-list-header {
    background-color: var(--primary-color);
    color: var(--header-footer-text);
    font-weight: 600;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding: 12px 0;
    position: sticky;
    top: 0;
    z-index: 2;
}

.header-cell {
    padding: 0 5px;
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-list {
    flex-grow: 1;
    background-color: var(--card-background);
}

.file-row {
    background-color: var(--card-background);
    border-bottom: 1px solid var(--background-dark);
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease;
    align-items: center;
}

.file-row:last-child {
    border-bottom: none;
}

.file-row:hover {
    background-color: var(--background-dark);
}

/* Style for selected file rows */
.file-row.selected {
    background-color: var(--background-dark);
    border-left: 5px solid var(--primary-color);
}

.file-row .row-cell {
    padding: 8px 5px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    text-align: center;
}

.file-row .checkbox-cell {
    display: flex;
    justify-content: center;
    align-items: center;
}

.file-row .download-link-cell {
    display: none;
}


.no-results {
    text-align: center;
    color: var(--secondary-color);
    font-style: italic;
    padding: 20px;
    border-radius: 5px;
    margin-top: 15px;
    background-color: var(--background-light);
}

/* Download button for selected files */
.download-button-container {
    text-align: center;
    margin-top: 20px;
    flex-shrink: 0; 
}

#download-selected-btn {
    background-color: var(--success-color);
    color: #fff;
    padding: 15px 30px;
    border: none;
    border-radius: 5px;
    font-size: 1.1em;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease, opacity 0.2s ease;
    width: auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

#download-selected-btn:hover:not(:disabled) {
    background-color: #218838;
}

#download-selected-btn:disabled {
    background-color: var(--secondary-color);
    cursor: not-allowed;
    opacity: 0.7;
}

.download-count {
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    padding: 3px 8px;
    font-size: 0.9em;
    font-weight: bold;
}

/* Footer Section */
.footer {
    background-color: var(--header-footer-bg);
    color: var(--header-footer-text);
    padding: 40px 20px; /* Adjust padding for overall footer */
    text-align: center; /* Center the entire footer content */
    font-size: 1em; /* Base font size for footer text */
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.2);
    margin-top: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 30px;
    width: 100%;
    margin-bottom: 20px; /* Space above the copyright */
}

/* Individual footer sections */
.footer-section {
    flex: 1; /* Allow sections to grow and shrink */
    padding: 0 10px; /* Horizontal padding within sections */
    text-align: left;
}

.footer-section h3 {
    font-size: 1.5em;
    margin-bottom: 15px;
    color: var(--header-footer-text);
    font-weight: 600;
    white-space: nowrap;
}

.footer-section p {
    font-size: 1em;
    margin-bottom: 10px;
}

.footer-section a {
    font-size: 1em;
    color: var(--header-footer-text);
    text-decoration: underline;
    letter-spacing: normal;
}

.footer-section a:hover {
    color: var(--background-light);
}

/* Specific styling for the reference block (pre tag) */

#reference-section p {
    background-color: rgba(0, 0, 0, 0.3);
    border-radius: 8px;
    padding: 10px;
}
#reference-section h4 {
    font-size: 1em;
    margin-bottom: 10px;
    font-weight: 400;

}
/* --- Responsive Adjustments for Main Content Layout --- */

/* Small Screens (default/mobile first - up to 767px) */
/* All sections stack vertically. */
.content-card {
    padding: 25px;
    gap: 30px;
}

.header h1 {
    font-size: 2.5em;
}

.section-title {
    font-size: 1.3em;
}

/* Ensure these main sections take up their content's height */
.generic-selection-section,
.specific-characteristics-section,
.results-section {
    padding: 25px;
    min-height: auto; 
    max-height: none; 
    overflow-y: visible; 
    grid-row-end: span 1;
    min-width: 0; 
}

/* Checkbox-group needs its max-height for inner scrolling */
.checkbox-group {
    padding: 12px;
    gap: 8px;
    max-height: 300px; 
    overflow-y: auto;
    min-width: 0;
}

/* Style for the survival rate grid */
.survival-rate-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px; 
    padding-top: 5px; 
}

/* Adjust checkbox-group max-height if the new grid layout causes issues with existing height */
/* You might need to adjust this value based on how the 3x3 grid fits */
.checkbox-group#survival-rate-checkboxes {
    max-height: 350px; 
    overflow-y: auto; 
    flex-direction: column; 
}

/* Ensure individual labels within the grid also behave as grid items */
.survival-rate-grid label {
    display: flex; 
    align-items: center; 
    justify-content: flex-start; 
    padding: 5px; 
    border: 1px solid var(--border-color); 
    border-radius: 4px;
    background-color: var(--card-background); 
    white-space: normal; 
    word-break: break-word;
}

/* Adjust checkbox size within the grid if needed */
.survival-rate-grid input[type="checkbox"] {
    margin-right: 8px;
}


.checkbox-group label {
    font-size: 1em;
    white-space: normal; 
    word-break: break-word; 
}

.checkbox-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
}

/* File list table adjustments for small screens */
.file-list-grid-columns {
    grid-template-columns: 15px minmax(70px, 1fr) minmax(70px, 0.8fr) minmax(70px, 0.8fr) minmax(70px, 1fr) minmax(70px, 0.5fr) minmax(110px, 1fr) minmax(70px, 1fr);
    padding-left: 10px;
    padding-right: 10px;
    font-size: 0.9em;
    min-width: 550px; 
}


.file-list-header, .file-row .row-cell {
    padding: 8px 5px;
}

.download-button-container #download-selected-btn {
    font-size: 1.1em;
    padding: 15px 30px;
}

/* Ensure Dominant/Non-Dominant are one column on small screens */
.output-type-columns {
    display: grid;
    grid-template-columns: 1fr; 
    gap: 20px;
    min-width: 0; 
}

.output-type-column {
    min-width: 0; 
}


/* Medium Screens (768px to 1199px) - First two horizontal, third below */
@media (min-width: 900px) {
    .content-card {
        grid-template-columns: auto auto; 
        max-width: 1200px; 
        justify-content: center; 
        grid-template-rows: auto auto; 
    }

    /* Make the results section span both columns in its row */
    .results-section {
        grid-column: 1 / -1; 
        min-width: 0; 
        grid-row: 2; 
        min-height: auto;
        max-height: none;
        overflow-y: visible;
    }

    /* For the Generic and Specific sections, allow them to take full height in their grid cells */
    .generic-selection-section,
    .specific-characteristics-section {
        height: 100%;
        min-width: 0;
        min-height: auto;
        max-height: none;
        overflow-y: visible;
    }

    /* File list columns can now use their full definition */
    .file-list-grid-columns {
        grid-template-columns: 15px minmax(70px, 1fr) minmax(70px, 0.8fr) minmax(70px, 0.8fr) minmax(70px, 1fr) minmax(70px, 0.5fr) minmax(110px, 1fr) minmax(70px, 1fr);
        font-size: 1em; 
        min-width: 600px; 
    }

    /* Revert .checkbox-grid-columns to 1 column on medium screens for stacking */
    .checkbox-grid-columns {
        grid-template-columns: 1fr; 
    }


    /* Ensure Dominant/Non-Dominant are one column on medium screens */
    .output-type-columns {
        display: grid;
        grid-template-columns: 1fr; 
        gap: 20px;
    }
    .footer-content {
        flex-direction: row;
        justify-content: space-between;
        gap: 20px; /* Reduce gap when in row layout */
    }

    .footer-section {
        flex-basis: 0;
    }
}


/* Large Screens (1200px and up) - All 3 sections horizontal */
@media (min-width: 1200px) {
    .content-card {
        grid-template-columns: minmax(400px, 1.5fr) minmax(350px, 1.2fr) minmax(500px, 2.5fr); 
        max-width: 1920px; 
        justify-content: center;
        grid-template-rows: auto; 
    }

    /* Reset results section to take only one column */
    .results-section {
        grid-column: auto; 
        min-width: 0;
        grid-row: auto; 
        min-height: auto;
        max-height: none;
        overflow-y: visible;
    }

    /* Ensure all three sections take full height */
    .generic-selection-section,
    .specific-characteristics-section {
        height: 100%;
        min-width: 0;
        min-height: auto;
        max-height: none;
        overflow-y: visible;
    }

    /* File list columns can now use their full definition */
    .file-list-grid-columns {
        grid-template-columns: 15px minmax(70px, 1fr) minmax(70px, 0.8fr) minmax(70px, 0.8fr) minmax(70px, 1fr) minmax(70px, 0.5fr) minmax(110px, 1fr) minmax(70px, 1fr);
        min-width: 650px; 
    }

    /* Ensure .checkbox-grid-columns remain two columns on large screens */
    .checkbox-grid-columns {
        grid-template-columns: 1fr 1fr;
    }

    /* Ensure Dominant/Non-Dominant are two columns on large screens */
    .output-type-columns {
        grid-template-columns: 1fr 1fr; 
        gap: 15px;
        min-width: 0;
    }

    .output-type-column {
        min-width: 0; 
    }
}