/* CSS Variables */
:root {
    /* Colors */
    --color-primary: #DE5C8E;
    --color-primary-light: #F4C2D7;
    --color-primary-dark: #C84978;
    --color-white: #FFFFFF;
    --color-background: #FAFAFA;
    --color-text-primary: #333333;
    --color-text-secondary: #666666;
    --color-text-light: #999999;
    --color-border: #E0E0E0;
    --color-shadow: rgba(0, 0, 0, 0.1);
    --color-shadow-hover: rgba(222, 92, 142, 0.2);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #FAFAFA 0%, #F0F0F0 100%);
    color: var(--color-text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-lg);
}

/* Header */
.header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg) 0;
}

.header-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.header-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    font-weight: 400;
}

/* Tab Navigation */
.tab-navigation {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.8);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.tab-button {
    flex: 1;
    min-width: 150px;
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    color: var(--color-text-secondary);
    border: 1px solid rgba(224, 224, 224, 0.5);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.tab-button:hover {
    background: rgba(244, 194, 215, 0.6);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--color-primary-dark);
    border-color: rgba(222, 92, 142, 0.5);
}

.tab-button.active {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

/* Card Base Style */
.card {
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.8);
    padding: var(--spacing-lg);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    transition: all var(--transition-normal);
}

.card:hover {
    box-shadow: 0 12px 40px rgba(222, 92, 142, 0.15);
    transform: translateY(-2px);
    border-color: rgba(222, 92, 142, 0.3);
}

/* Section Titles */
.section-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

/* Members Header and Hide Button */
.members-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.hide-members-button {
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.hide-members-button:hover {
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
    border-color: var(--color-primary);
}

/* Summary Section */
.summary-section {
    margin-bottom: var(--spacing-lg);
}

.summary-card {
    min-height: 300px;
}

.summary-content {
    margin-bottom: var(--spacing-md);
}

.summary-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.stat-item {
    padding: var(--spacing-md);
    background: rgba(250, 250, 250, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-left: 4px solid var(--color-primary);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.stat-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-primary);
}

.stat-value-chart {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.stat-number {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-primary);
}

.mini-chart {
    height: 8px;
    background-color: rgba(0, 0, 0, 0.05);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.mini-bar {
    height: 100%;
    border-radius: 4px;
    transition: width 0.5s ease;
}

.summary-list {
    list-style: none;
    max-height: 400px;
    overflow-y: auto;
}

.summary-list-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
    background: rgba(250, 250, 250, 0.5);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.summary-list-item:hover {
    background: rgba(244, 194, 215, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-color: rgba(222, 92, 142, 0.3);
    transform: translateX(4px);
}

.summary-list-label {
    font-weight: 500;
    color: var(--color-text-primary);
    flex: 0 0 40%;
}

.summary-list-chart {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    position: relative;
}

.list-mini-bar {
    height: 6px;
    border-radius: 3px;
    min-width: 20px;
    transition: width 0.5s ease, background 0.3s ease;
}

.summary-list-count {
    font-weight: 700;
    color: var(--color-primary);
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.8);
    min-width: 40px;
    text-align: center;
}

/* Chart Container */
.chart-container {
    position: relative;
    height: 400px;
    margin-top: var(--spacing-md);
}

.chart-container canvas {
    max-height: 400px;
}

/* Search Section */
.search-section {
    margin-bottom: var(--spacing-lg);
}

.search-wrapper {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.search-input {
    flex: 1;
    min-width: 250px;
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(224, 224, 224, 0.5);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    transition: all var(--transition-normal);
}

.search-input:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.85);
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(244, 194, 215, 0.4);
}

.search-button,
.clear-button {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.search-button {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.search-button:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px var(--color-shadow-hover);
}

.clear-button {
    background: rgba(224, 224, 224, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(224, 224, 224, 0.5);
    color: var(--color-text-secondary);
}

.clear-button:hover {
    background: rgba(102, 102, 102, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--color-white);
}

/* Members Section */
.members-section {
    margin-bottom: var(--spacing-lg);
}

.member-count {
    font-size: 1rem;
    color: var(--color-text-secondary);
    font-weight: 400;
}

.members-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

/* Member Card */
.member-card {
    padding: var(--spacing-md);
}

.member-header {
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-primary-light);
}

.member-name {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.member-position {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    font-style: italic;
}

.member-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.member-detail {
    display: flex;
    align-items: flex-start;
}

.detail-label {
    font-weight: 600;
    color: var(--color-text-primary);
    min-width: 120px;
    font-size: 0.9rem;
}

.detail-value {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    flex: 1;
}

.member-network {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(244, 194, 215, 0.6);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border: 1px solid rgba(222, 92, 142, 0.3);
    color: var(--color-primary-dark);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
    margin-top: var(--spacing-xs);
}

.member-email {
    color: var(--color-primary);
    text-decoration: none;
    word-break: break-word;
}

.member-email:hover {
    text-decoration: underline;
}

/* Loading Indicator */
.loading-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    color: var(--color-primary);
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--color-primary-light);
    border-top: 4px solid var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading-indicator p {
    margin-top: var(--spacing-sm);
    font-size: 1.1rem;
}

/* Error Message */
.error-message {
    background-color: #FFEBEE;
    color: #C62828;
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    border-left: 4px solid #C62828;
    margin: var(--spacing-lg) 0;
}

/* Utility Classes */
.hidden {
    display: none;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: var(--spacing-sm);
    }
    
    .header-title {
        font-size: 1.8rem;
    }
    
    .tab-navigation {
        flex-direction: column;
    }
    
    .tab-button {
        min-width: 100%;
    }
    
    .members-list {
        grid-template-columns: 1fr;
    }
    
    .search-wrapper {
        flex-direction: column;
    }
    
    .search-input,
    .search-button,
    .clear-button {
        width: 100%;
    }
    
    .summary-stats {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .header-title {
        font-size: 1.5rem;
    }
    
    .section-title {
        font-size: 1.2rem;
    }
    
    .detail-label {
        min-width: 100px;
        font-size: 0.85rem;
    }
    
    .detail-value {
        font-size: 0.85rem;
    }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-background);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb {
    background: var(--color-primary-light);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}