/* General Body and Container Styles */
body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
	background-image: url('whatsapp_background.png'); /* <<< ADDED BACK */
	background-repeat: repeat;
	background-attachment: fixed;
	background-color: #f0f2f5;
    margin: 0;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: 100vh;
    color: #333;
}
.container {
    background-color: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
    text-align: center;
    max-width: 950px;
    width: 100%;
    display: none;
    box-sizing: border-box;
}
.container.active { display: block; }

/* Headings and Text */
h1 { color: #1c1e21; margin-bottom: 10px; }
p { color: #555; margin-bottom: 15px; line-height: 1.5; } /* Default paragraph spacing */

/* Buttons and Input */
.upload-button { display: inline-block; padding: 12px 25px; background-color: #007bff; color: white; border: none; border-radius: 6px; cursor: pointer; font-size: 16px; transition: background-color 0.3s ease; }
.upload-button:hover { background-color: #0056b3; }
.back-button { display: block; margin: 0 auto 25px auto; padding: 10px 20px; background-color: #e9ecef; color: #343a40; border: 1px solid #ced4da; border-radius: 6px; cursor: pointer; font-size: 14px; transition: background-color 0.3s ease; }
.back-button:hover { background-color: #dee2e6; }

/* Error and Loading Messages */
.error { color: #dc3545; font-weight: bold; margin-top: 15px; }
#loading-message { margin-top: 15px; color: #6c757d; }

/* Results Section Specifics */
#results-section h2 { color: #212529; margin-bottom: 20px; text-align: center; }

/* Stats Containers Styling */
.stats-container { background-color: #f8f9fa; border: 1px solid #dee2e6; border-radius: 6px; padding: 15px 20px; margin-bottom: 10px; text-align: left; }
.stats-container h3, .stats-container h4 { margin-top: 0; margin-bottom: 15px; color: #343a40; border-bottom: 1px solid #dee2e6; padding-bottom: 8px; font-size: 1.1em; font-weight: 600; }
.stats-container p { margin-bottom: 8px; font-size: 0.95em; color: #495057; } /* Default spacing for overall group stats */
.stats-container p strong { color: #212529; min-width: 180px; display: inline-block; font-weight: 600; }
.stats-divider { border: none; border-top: 1px solid #dee2e6; margin: 25px 0; }
/* Specific spacing for Peak/HOF lists */
#group-stats-content ol { margin: 0; padding-left: 20px; list-style-position: inside; }
#group-stats-content li { margin-bottom: 4px; font-size: 0.95em; }

/* --- Year Navigation --- */
.year-nav {
    text-align: center;
    margin-bottom: 20px;
    position: sticky;
    top: 0;
    background-color: #fff;
    padding-top: 10px;
    padding-bottom: 10px;
    z-index: 10;
}
.year-nav-button { padding: 5px 12px; font-size: 0.9em; background-color: #f8f9fa; border: 1px solid #ced4da; border-radius: 4px; cursor: pointer; margin: 0 10px; transition: background-color 0.2s ease; color: #495057; }
.year-nav-button:hover:not(:disabled) { background-color: #e9ecef; }
.year-nav-button:disabled { opacity: 0.5; cursor: not-allowed; }
.year-nav-display { font-weight: bold; font-size: 1.1em; color: #343a40; display: inline-block; min-width: 120px; text-align: center; }

/* --- User Graph Area --- */
.user-graph { margin-bottom: 30px; padding-bottom: 20px; border-bottom: 1px dashed #ced4da; }
.user-graph:last-child { border-bottom: none; }
.user-title { font-size: 1.15em; color: #343a40; margin-bottom: 15px; text-align: left; font-weight: 600; }
.user-title .contribution-count { font-weight: normal; color: #6c757d; font-size: 0.9em; }
.user-title .display-name { }
.toggle-anonymize-icon { font-size: 0.9em; margin-left: 5px; display: inline-block; vertical-align: middle; opacity: 0.6; transition: opacity 0.2s ease; user-select: none; }
.toggle-anonymize-icon:hover { opacity: 1; }

/* --- Heatmap Container (Unchanged) --- */
.heatmap-container { display: flex; flex-direction: column; align-items: center; margin-bottom: 20px; }
.heatmap-months { display: flex; margin-bottom: 3px; padding-left: 25px; padding-right: 5px; font-size: 11px; color: #6c757d; width: 100%; max-width: 850px; box-sizing: border-box; justify-content: space-between; margin: 0 auto 3px auto; }
.heatmap-month { text-align: center; white-space: nowrap; visibility: hidden; }
.heatmap-month.visible { visibility: visible; }
.heatmap-body { display: flex; width: 100%; max-width: 850px; margin: 0 auto; box-sizing: border-box; }
.heatmap-days-labels { display: flex; flex-direction: column; justify-content: space-between; margin-right: 5px; padding: 10px 0; font-size: 10px; color: #6c757d; flex-shrink: 0; height: 125px; box-sizing: border-box; text-align: right;}
.heatmap-days-labels span { display: block; visibility: hidden; line-height: 15px; height: 15px; }
.heatmap-days-labels span:nth-child(2), .heatmap-days-labels span:nth-child(4), .heatmap-days-labels span:nth-child(6) { visibility: visible;}
.heatmap-grid { display: grid; grid-template-columns: repeat(53, 13px); grid-template-rows: repeat(7, 13px); grid-auto-flow: column; grid-gap: 2px; height: 125px; overflow: hidden; border: 1px solid #dee2e6; padding: 10px; border-radius: 3px; flex-grow: 1; box-sizing: border-box; }
.heatmap-cell { width: 13px; height: 13px; background-color: #e9ecef; border-radius: 2px; cursor: default; }
.heatmap-cell.level-0 { background-color: #e9ecef; }
.heatmap-cell.level-1 { background-color: #9be9a8; }
.heatmap-cell.level-2 { background-color: #40c463; }
.heatmap-cell.level-3 { background-color: #30a14e; }
.heatmap-cell.level-4 { background-color: #216e39; }
.heatmap-cell.placeholder { background-color: transparent; border: none; pointer-events: none; }
.heatmap-cell[title]:hover::after { content: attr(title); position: absolute; transform: translate(-50%, -110%); background-color: rgba(0, 0, 0, 0.85); color: white; padding: 4px 8px; border-radius: 4px; font-size: 12px; white-space: nowrap; z-index: 10; pointer-events: none; }
/* --- End Heatmap --- */

/* Individual User Stats Area */
.user-stats {
    margin-top: 15px;
    font-size: 0.9em;
    padding: 0 20px 10px 20px; /* Remove top padding, keep others */
}
/* <<< MODIFIED: Apply tighter spacing to ALL user stats paragraphs >>> */
.user-stats p {
    margin-bottom: 6px; /* Tighter spacing */
    line-height: 1.3;
}
.user-stats p strong {
    font-weight: 600;
    color: #212529;
    min-width: 150px;
    display: inline-block;
}

.user-stats-overall {
    border-top: 2px solid #adb5bd;
    margin-top: 20px;
    padding-top: 15px;
    background-color: #f1f3f5;
    border-radius: 0 0 6px 6px;
}
.user-stats-overall h4 { /* Target overall stats heading */
    margin-top: 0;
    margin-bottom: 10px;
    padding-bottom: 5px;
    border-bottom: 1px solid #dee2e6;
    font-size: 1.1em; /* Match other h4 */
    font-weight: 600;
}

/* <<< ADDED: Styles for Collapsible Sections >>> */
.collapsible-trigger {
    cursor: pointer;
    display: block; /* Make whole heading clickable */
    position: relative; /* For caret positioning */
}
.collapsible-caret {
    display: inline-block;
    margin-right: 8px;
    transition: transform 0.2s ease-in-out;
    font-size: 0.8em; /* Smaller caret */
}
/* Style for when content is collapsed (can be added by JS) */
.collapsed .collapsible-caret {
    transform: rotate(-90deg);
}
.collapsed .collapsible-body {
    display: none;
}
.collapsible-body {
    padding-top: 10px; /* Space between heading and content */
}