/* --- Global Styles --- */
/* 版本号: 5.2 */
:root {
    --color-primary: #007bff;
    --color-secondary: #6c757d;
    --color-success: #28a745;
    --color-danger: #dc3545;
    --color-warning: #ffc107;
    --color-info: #17a2b8; /* Added for export button */
    --color-light: #f8f9fa;
    --color-dark: #343a40;
    --color-white: #ffffff;
    --color-black: #000000;

    --color-sidebar-bg: #e9ecef;
    --color-sidebar-text: #495057;
    --color-main-bg: #ffffff;
    --color-main-text: #343a40;

    --color-card-bg: var(--color-white);
    --color-card-border: #dee2e6;
    --color-header-bg: #e9ecef; /* Used for card and data section headers */
    --color-header-text: var(--color-dark);
    --color-icon: var(--color-primary);

    /* Add colors for warning-light, warning, danger for clear buttons */
    --color-warning-light: #fff3cd; /* A lighter shade of yellow */
    --color-danger-text: var(--color-danger); /* Use the danger color for text */
    --color-border: #dee2e6; /* For general borders */

    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --border-radius: 0.3rem;
}

body {
    font-family: var(--font-family);
    margin: 0;
    padding: 0;
    background-color: var(--color-light);
    color: var(--color-main-text);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.container {
    display: flex;
    flex: 1;
    padding: 15px;
    gap: 20px;
}

/* --- Header --- */
.main-header {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.main-header .header-left {
    display: flex;
    align-items: center;
}

.main-header .header-icon {
    font-size: 24px;
    margin-right: 15px;
}

.main-header h1 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
}

/* --- Sidebar --- */
.sidebar {
    width: 280px;
    background-color: var(--color-sidebar-bg);
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
}

.sidebar h2 {
    margin-top: 0;
    color: var(--color-primary);
    border-bottom: 2px solid var(--color-primary);
    padding-bottom: 10px;
    margin-bottom: 20px;
}

.sidebar-light-blue {
    /* background-color: #cfe2ff; */
}

.section-description {
    font-size: 0.9rem;
    color: var(--color-secondary);
    margin-bottom: 25px;
}

/* --- Main Content --- */
.main-content {
    flex: 1;
    background-color: var(--color-main-bg);
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.main-content h2 {
    color: var(--color-dark);
    border-bottom: 2px solid var(--color-dark);
    padding-bottom: 10px;
    margin-bottom: 20px;
}

.main-content-light-grey {
    background-color: var(--color-light);
}

/* --- Cards --- */
.card {
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-card-border);
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    overflow: hidden;
}

.card-header {
    background-color: var(--color-header-bg);
    padding: 12px 15px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--color-card-border);
}

.card-header .card-icon {
    font-size: 18px;
    color: var(--color-icon);
    margin-right: 10px;
}

.card-header h3 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-header-text);
}
/* New layout for the data card headers to position the clear button next to the title */
.card .card-header h3 {
    flex-grow: 1; /* Allow h3 to take up available space */
}
.card .card-header .btn-data-clear {
    margin-left: 10px; /* Add some space between the h3 and the button */
}

.card-body {
    padding: 15px;
}

.card-body .section-description {
    margin-bottom: 15px;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 18px;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: background-color 0.2s ease, box-shadow 0.2s ease;
    text-decoration: none;
}

.btn i {
    margin-right: 8px;
    font-size: 1.1em;
}

.btn:hover {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.btn-primary { background-color: var(--color-primary); color: var(--color-white); }
.btn-primary:hover { background-color: #0056b3; }

.btn-success { background-color: var(--color-success); color: var(--color-white); }
.btn-success:hover { background-color: #218838; }

.btn-danger { background-color: var(--color-danger); color: var(--color-white); }
.btn-danger:hover { background-color: #c82333; }

.btn-info { background-color: var(--color-info); color: var(--color-white); }
.btn-info:hover { background-color: #138496; }

.btn-secondary { background-color: var(--color-secondary); color: var(--color-white); }
.btn-secondary:hover { background-color: #5a6268; }

.btn-large {
    padding: 12px 25px;
    font-size: 1.1rem;
}

.btn-block {
    display: block;
    width: 100%;
}

/* NEW: Style for data clear buttons with trash icon */
.btn-data-clear {
    background-color: var(--color-danger);
    color: var(--color-white);
    border: none;
    padding: 6px 10px;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 1rem;
    display: none;
    transition: background-color 0.2s ease, transform 0.2s ease;
}

.btn-data-clear:hover {
    background-color: #c82333;
    transform: scale(1.05);
}

/* Override for icon-only button */
.btn-data-clear i {
    margin-right: 0;
}

/* NEW: Layout for comparison results card header */
.comparison-results .card-header {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 10px;
}
.comparison-results .card-header h3 {
    margin-right: auto;
}

.comparison-results .card-header .btn-data-clear {
    margin-left: 0;
}
.comparison-results .card-header .btn-info {
    margin-left: 0;
}
.comparison-results .card-header .filter-controls,
.comparison-results .card-header .btn-large {
    flex-shrink: 0;
}

/* --- Data Display --- */
.data-section {
    margin-top: 30px;
    border: 1px solid var(--color-card-border);
    border-radius: var(--border-radius);
    background-color: var(--color-white);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    overflow: hidden;
}

.data-section-header {
    background-color: var(--color-header-bg);
    padding: 12px 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    border-bottom: 1px solid var(--color-card-border);
}

.data-section-header span:first-child {
    font-weight: 600;
    color: var(--color-header-text);
}

.toggle-icon {
    font-size: 1.2rem;
    color: var(--color-secondary);
    transition: transform 0.3s ease;
}

/* NEW: Fixed height and scrollbar for data tables */
.data-section-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out, padding 0.4s ease-out;
    padding: 0 15px;
}

.data-section-content.active {
    max-height: 600px; /* Adjust height as needed */
    padding: 15px;
    overflow-y: auto;
}

.data-section-content p {
    text-align: center;
    color: var(--color-secondary);
    padding: 20px 0;
}

/* --- Table Styles --- */
table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 15px;
    font-size: 0.8rem;
}

th, td {
    padding: 8px 10px;
    text-align: left;
    border: 1px solid #e0e0e0;
    word-break: break-all;
}

th {
    background-color: #f2f2f2;
    font-weight: 600;
    color: var(--color-dark);
}

td {
    background-color: var(--color-white);
}

tbody tr:nth-child(even) td {
    background-color: #f9f9f9;
}

/* NEW: Styles for the tip text inside table cells */
.tip-red {
    color: var(--color-danger);
    font-weight: bold;
    margin-left: 5px;
    font-size: 0.9em;
}

.tip-yellow {
    color: var(--color-warning);
    font-weight: bold;
    margin-left: 5px;
    font-size: 0.9em;
}

/* --- Pagination --- */
.pagination {
    text-align: center;
    margin-top: 15px;
}

.pagination button {
    background-color: var(--color-light);
    border: 1px solid var(--color-card-border);
    padding: 6px 10px;
    margin: 0 2px;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background-color 0.2s, color 0.2s;
    font-size: 0.8rem;
}

.pagination button:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.pagination button.active-page {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
    font-weight: bold;
}


.placeholder-message, .no-results-message {
    text-align: center;
    color: var(--color-secondary);
    padding: 30px 0;
    font-style: italic;
}

/* --- New Footer Style --- */
.main-footer {
    text-align: center;
    padding: 15px;
    color: var(--color-secondary);
    font-size: 0.9rem;
    margin-top: auto;
}

/* NEW: Styles for the static "bar chart" */
.age-summary-container {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.age-summary-bar {
    display: flex;
    align-items: center;
    font-size: 0.9rem;
    flex-wrap: nowrap; /* Prevents wrapping */
}

.age-summary-bar .label {
    width: 120px; /* Adjusted width for labels */
    flex-shrink: 0;
    font-weight: 600;
    color: var(--color-dark);
    text-align: right;
    margin-right: 15px;
}

.age-summary-bar .bar {
    height: 25px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    padding: 0 10px;
    transition: width 0.5s ease-out;
    background-color: var(--color-primary); /* Default color */
    min-width: 10px; /* Ensures a minimum width even for 0% */
}

.age-summary-bar .count {
    color: var(--color-white);
    font-weight: bold;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
    margin-left: auto;
    flex-shrink: 0;
}

/* Define colors for each age group */
.age-summary-bar.age-below-80 .bar { background-color: #6699ff; } /* Light blue */
.age-summary-bar.age-80s .bar { background-color: #33cc66; } /* Green */
.age-summary-bar.age-90s .bar { background-color: #ff9933; } /* Orange */
.age-summary-bar.age-100-plus .bar { background-color: #cc0033; } /* Red */
.age-summary-bar.age-unknown .bar { background-color: #999999; } /* Grey */


/* Responsive adjustments */
@media (max-width: 768px) {
    .container {
        flex-direction: column;
    }
    .sidebar {
        width: 100%;
        margin-bottom: 20px;
    }
    .main-header h1 {
        font-size: 1.2rem;
    }
    .btn-large {
        padding: 10px 18px;
        font-size: 1rem;
    }
}

/* NEW: Styles for the new comparison card layout */
.comparison-cards-row {
    display: flex;
    gap: 20px;
    margin-bottom: 20px; /* Space below the row */
}

.comparison-cards-row .age-filter-card {
    flex: 1; /* Occupies 1/3 of the space */
    min-width: 0; /* Prevents overflow */
}

.comparison-cards-row #comparisonSummary {
    flex: 2; /* Occupies 2/3 of the space */
    min-width: 0; /* Prevents overflow */
}

.date-filter-group {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
    font-size: 0.9rem;
}

.date-filter-group select {
    padding: 5px;
    border-radius: var(--border-radius);
    border: 1px solid var(--color-card-border);
}

@media (max-width: 992px) {
    .comparison-cards-row {
        flex-direction: column;
    }
}