:root {
    --skool-primary: #208C99;
    --skool-primary-dark: #1a7480;
    --skool-primary-light: #2da3b1;
    --success: #28a745;
    --warning: #ffc107;
    --danger: #dc3545;
    --gray-50: #f8f9fa;
    --gray-100: #e9ecef;
    --gray-200: #dee2e6;
    --gray-300: #ced4da;
    --gray-700: #495057;
    --gray-900: #212529;
}

* {
    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, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    color: var(--gray-900);
    padding: 20px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

/* Header */
.dashboard-header {
    background: white;
    border-radius: 16px;
    padding: 24px 32px;
    margin-bottom: 24px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.header-content h1 {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 28px;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.logo {
    flex-shrink: 0;
}

.subtitle {
    color: var(--gray-700);
    font-size: 14px;
    margin-left: 44px;
}

.header-actions {
    display: flex;
    gap: 12px;
}

/* Buttons */
.btn {
    padding: 10px 20px;
    border-radius: 8px;
    border: none;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background: var(--skool-primary);
    color: white;
}

.btn-primary:hover {
    background: var(--skool-primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(32, 140, 153, 0.3);
}

.btn-secondary {
    background: var(--gray-100);
    color: var(--gray-700);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--gray-200);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-link {
    background: none;
    border: none;
    color: var(--skool-primary);
    text-decoration: underline;
    cursor: pointer;
    font-size: 14px;
}

.btn-link:hover {
    color: var(--skool-primary-dark);
}

/* Upload Section */
.upload-section {
    background: white;
    border-radius: 16px;
    padding: 48px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.upload-box {
    border: 3px dashed var(--gray-300);
    border-radius: 12px;
    padding: 64px 32px;
    transition: all 0.3s;
    cursor: pointer;
}

.upload-box.dragover {
    border-color: var(--skool-primary);
    background: rgba(32, 140, 153, 0.05);
}

.upload-icon {
    margin-bottom: 16px;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

.upload-box h2 {
    font-size: 24px;
    margin-bottom: 8px;
    color: var(--gray-900);
}

.upload-box p {
    color: var(--gray-700);
    margin-bottom: 8px;
}

.upload-hint {
    font-size: 13px;
    color: var(--gray-700);
    margin-bottom: 24px;
}

.sample-data-box {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--gray-200);
}

/* Dashboard Content */
.dashboard-content {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.stat-card {
    background: white;
    border-radius: 12px;
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    transition: transform 0.2s;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.12);
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.stat-icon-primary {
    background: rgba(32, 140, 153, 0.1);
    color: var(--skool-primary);
}

.stat-icon-success {
    background: rgba(40, 167, 69, 0.1);
    color: var(--success);
}

.stat-icon-warning {
    background: rgba(255, 193, 7, 0.1);
    color: var(--warning);
}

.stat-icon-danger {
    background: rgba(220, 53, 69, 0.1);
    color: var(--danger);
}

.stat-content {
    flex: 1;
}

.stat-label {
    font-size: 13px;
    color: var(--gray-700);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--gray-900);
    margin-top: 4px;
}

.stat-sublabel {
    font-size: 12px;
    color: var(--gray-700);
    margin-top: 4px;
}

/* Charts Grid */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.chart-card {
    background: white;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.chart-card h3 {
    margin-bottom: 20px;
    color: var(--gray-900);
}

.chart-card canvas {
    max-height: 300px;
}

/* Card */
.card {
    background: white;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    margin-bottom: 24px;
}

.card h3 {
    margin-bottom: 20px;
    color: var(--gray-900);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 16px;
}

.card-actions select {
    padding: 8px 12px;
    border-radius: 6px;
    border: 1px solid var(--gray-300);
    font-size: 14px;
    margin-left: 8px;
}

/* Contributors List */
.contributors-list {
    display: grid;
    gap: 12px;
}

.contributor-item {
    display: flex;
    align-items: center;
    padding: 16px;
    background: var(--gray-50);
    border-radius: 8px;
    gap: 16px;
}

.contributor-rank {
    width: 40px;
    height: 40px;
    background: var(--skool-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.contributor-rank.gold {
    background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
}

.contributor-rank.silver {
    background: linear-gradient(135deg, #C0C0C0 0%, #808080 100%);
}

.contributor-rank.bronze {
    background: linear-gradient(135deg, #CD7F32 0%, #8B4513 100%);
}

.contributor-info {
    flex: 1;
}

.contributor-name {
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.contributor-email {
    font-size: 13px;
    color: var(--gray-700);
}

.contributor-stats {
    display: flex;
    gap: 24px;
}

.contributor-stat {
    text-align: center;
}

.contributor-stat-value {
    font-size: 20px;
    font-weight: 700;
    color: var(--skool-primary);
}

.contributor-stat-label {
    font-size: 11px;
    color: var(--gray-700);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Table */
.table-container {
    overflow-x: auto;
}

/* Scrollable table for inactive members */
.table-container.scrollable {
    max-height: 600px;
    overflow-y: auto;
    border: 1px solid var(--gray-200);
    border-radius: 8px;
}

.table-container.scrollable thead th {
    position: sticky;
    top: 0;
    background: var(--gray-100);
    z-index: 10;
}

/* Pagination controls */
.pagination-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
    border-top: 1px solid var(--gray-200);
    margin-top: 16px;
}

.pagination-info {
    color: var(--gray-600);
    font-size: 14px;
}

.pagination-buttons {
    display: flex;
    gap: 8px;
}

.pagination-buttons button {
    padding: 8px 16px;
    border: 1px solid var(--gray-300);
    background: white;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s;
}

.pagination-buttons button:hover:not(:disabled) {
    background: var(--gray-50);
    border-color: var(--primary);
}

.pagination-buttons button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

/* Inactive members count badge */
.inactive-count {
    background: var(--danger);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    margin-left: 12px;
}

/* Per page selector */
.per-page-selector {
    display: flex;
    align-items: center;
    gap: 8px;
}

.per-page-selector select {
    padding: 6px 10px;
    border: 1px solid var(--gray-300);
    border-radius: 6px;
    font-size: 14px;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th {
    background: var(--gray-50);
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    font-size: 13px;
    color: var(--gray-700);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--gray-200);
}

td {
    padding: 16px;
    border-bottom: 1px solid var(--gray-200);
}

tr:hover {
    background: var(--gray-50);
}

.status-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.status-active {
    background: rgba(40, 167, 69, 0.1);
    color: var(--success);
}

.status-warning {
    background: rgba(255, 193, 7, 0.1);
    color: #d39e00;
}

.status-inactive {
    background: rgba(220, 53, 69, 0.1);
    color: var(--danger);
}

/* Role badges */
.role-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
}

.role-owner {
    background: linear-gradient(135deg, #ffd700, #ffb347);
    color: #5c4d00;
}

.role-admin {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
}

.role-member {
    background: rgba(108, 117, 125, 0.1);
    color: #6c757d;
}

/* Responsive */
@media (max-width: 768px) {
    .dashboard-header {
        flex-direction: column;
        align-items: flex-start;
    }

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

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

    .contributor-stats {
        flex-direction: column;
        gap: 8px;
    }

    .table-container {
        overflow-x: scroll;
    }
}