:root {
    --bg-primary: #0a0e14;
    --bg-secondary: #141920;
    --bg-tertiary: #1a1f28;
    --bg-hover: #242b36;
    --border-color: #2a3441;
    --text-primary: #e8edf4;
    --text-secondary: #9ba5b4;
    --text-tertiary: #6b7585;
    --accent-primary: #00d4aa;
    --accent-secondary: #00a88a;
    --status-paid: #00d4aa;
    --status-active: #00d4aa;
    --status-pending: #ffa726;
    --status-overdue: #ff5252;
    --status-cancelled: #78909c;
    --status-inactive: #78909c;
    --gradient-1: linear-gradient(135deg, #00d4aa 0%, #00a88a 100%);
}

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

body {
    font-family: 'Archivo', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.dashboard-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    display: flex;
    flex-direction: column;
    width: 280px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    padding: 2rem 0;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    z-index: 100;
}

.logo {
    padding: 0 2rem 2rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 2rem;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.nav-menu {
    list-style: none;
}

.nav-item {
    margin-bottom: 0.25rem;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 0.875rem 2rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.2s ease;
    font-weight: 500;
    font-size: 0.95rem;
    border-left: 3px solid transparent;
}

.nav-link:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-left-color: var(--accent-primary);
}

.nav-link.active {
    background: var(--bg-hover);
    color: var(--accent-primary);
    border-left-color: var(--accent-primary);
}

.nav-icon {
    margin-right: 0.75rem;
    font-size: 1.25rem;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 280px;
    padding: 2rem;
    min-height: 100vh;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2.5rem;
}

.header h2 {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.03em;
}

.header-actions {
    display: flex;
    gap: 1rem;
}

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: 'Archivo', sans-serif;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-1);
    color: var(--bg-primary);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 212, 170, 0.3);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-hover);
    border-color: var(--accent-primary);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.stat-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.stat-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.3);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-1);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.stat-card:hover::before {
    opacity: 1;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.stat-value.stat-overdue {
    color: var(--status-overdue);
}

.stat-change {
    font-size: 0.875rem;
    font-family: 'JetBrains Mono', monospace;
    color: var(--status-paid);
}

.stat-change.negative {
    color: var(--status-overdue);
}

/* Filters */
.filters-bar {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.filters-form {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    align-items: center;
}

.search-box {
    flex: 1;
    min-width: 250px;
    position: relative;
}

.search-input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 3rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: 'Archivo', sans-serif;
    font-size: 0.95rem;
    transition: all 0.2s ease;
}

.search-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    background: var(--bg-primary);
}

.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
}

.filter-select {
    padding: 0.75rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: 'Archivo', sans-serif;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.filter-select:focus {
    outline: none;
    border-color: var(--accent-primary);
}

/* Tables */
.table-container {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 2rem;
}

.table-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.table-title {
    font-size: 1.25rem;
    font-weight: 600;
}

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

thead {
    background: var(--bg-tertiary);
}

th {
    padding: 1rem 1.5rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
}

tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: background 0.2s ease;
}

tbody tr:hover {
    background: var(--bg-hover);
}

tbody tr:last-child {
    border-bottom: none;
}

td {
    padding: 1.25rem 1.5rem;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.athlete-cell {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.athlete-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border-color);
}

.athlete-info h4 {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.athlete-meta {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

.contact-info div {
    margin-bottom: 0.25rem;
}

.contact-info div:last-child {
    margin-bottom: 0;
}

.status-badge {
    padding: 0.375rem 0.875rem;
    border-radius: 20px;
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: inline-block;
}

.status-badge.status-sm {
    padding: 0.25rem 0.625rem;
    font-size: 0.75rem;
    margin-top: 0.25rem;
}

.status-paid, .status-active {
    background: rgba(0, 212, 170, 0.15);
    color: var(--status-paid);
    border: 1px solid var(--status-paid);
}

.status-pending {
    background: rgba(255, 167, 38, 0.15);
    color: var(--status-pending);
    border: 1px solid var(--status-pending);
}

.status-overdue {
    background: rgba(255, 82, 82, 0.15);
    color: var(--status-overdue);
    border: 1px solid var(--status-overdue);
}

.status-cancelled, .status-inactive {
    background: rgba(120, 144, 156, 0.15);
    color: var(--status-cancelled);
    border: 1px solid var(--status-cancelled);
}

.amount {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 600;
    font-size: 1rem;
}

.date-cell {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.action-buttons {
    display: flex;
    gap: 0.5rem;
}

.action-btn {
    padding: 0.5rem 0.75rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.875rem;
    text-decoration: none;
    display: inline-block;
}

.action-btn:hover {
    background: var(--bg-hover);
    color: var(--accent-primary);
    border-color: var(--accent-primary);
}

/* Forms */
.form-container {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
}

.form-section {
    margin-bottom: 2.5rem;
}

.form-section h3 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-label {
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-input,
.form-select,
.form-textarea {
    padding: 0.875rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: 'Archivo', sans-serif;
    font-size: 0.95rem;
    transition: all 0.2s ease;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    background: var(--bg-primary);
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    margin-top: 2rem;
}

/* Profile Page */
.profile-grid {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 2rem;
}

.profile-main {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.info-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.card-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

.info-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.profile-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--border-color);
}

.profile-info h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.profile-meta {
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.info-item {
    display: flex;
    flex-direction: column;
}

.info-section {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.info-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.info-value {
    color: var(--text-primary);
    font-size: 0.95rem;
}

.payment-list,
.progress-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.payment-item,
.progress-item {
    padding: 1.25rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.progress-item {
    flex-direction: column;
    align-items: flex-start;
}

.payment-info {
    flex: 1;
}

.payment-amount {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.payment-date,
.payment-date-paid {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.payment-status {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.progress-date {
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.progress-metrics {
    display: flex;
    gap: 2rem;
    margin-bottom: 0.75rem;
}

.metric {
    display: flex;
    gap: 0.5rem;
}

.metric-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.metric-value {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 600;
}

.progress-notes {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-style: italic;
}

.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
}

/* Profile Sidebar */
.profile-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.stat-card-small {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem;
}

.stat-label-small {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.stat-value-small {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.quick-actions-sidebar {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
}

.quick-actions-sidebar h4 {
    font-size: 1rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.action-link {
    display: flex;
    align-items: center;
    padding: 0.75rem;
    margin-bottom: 0.5rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.875rem;
    transition: all 0.2s ease;
}

.action-link:hover {
    background: var(--bg-hover);
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.action-link.danger:hover {
    background: rgba(255, 82, 82, 0.15);
    border-color: var(--status-overdue);
    color: var(--status-overdue);
}

/* Quick Actions */
.quick-actions {
    margin-bottom: 2.5rem;
}

.quick-actions h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.action-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.action-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    text-decoration: none;
    transition: all 0.2s ease;
}

.action-card:hover {
    background: var(--bg-hover);
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

.action-card.urgent {
    border-color: var(--status-overdue);
}

.action-icon {
    font-size: 2rem;
}

.action-title {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.action-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Summary Section */
.summary-section {
    margin-bottom: 2.5rem;
}

.summary-section h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.summary-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
}

.summary-card.warning {
    border-color: var(--status-overdue);
}

.summary-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.summary-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}

.summary-sublabel {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

/* Tab Filters */
.tab-filters {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    border-bottom: 2px solid var(--border-color);
}

.tab-filter {
    padding: 1rem 1.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 600;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    transition: all 0.2s ease;
}

.tab-filter:hover {
    color: var(--text-primary);
}

.tab-filter.active {
    color: var(--accent-primary);
    border-bottom-color: var(--accent-primary);
}

/* Alerts */
.alert {
    padding: 1rem 1.5rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    font-weight: 500;
}

.alert-success {
    background: rgba(0, 212, 170, 0.15);
    color: var(--status-paid);
    border: 1px solid var(--status-paid);
}

.alert-error {
    background: rgba(255, 82, 82, 0.15);
    color: var(--status-overdue);
    border: 1px solid var(--status-overdue);
}

/* Responsive */
@media (max-width: 1200px) {
    .profile-grid {
        grid-template-columns: 1fr;
    }
    
    .profile-sidebar {
        flex-direction: row;
        flex-wrap: wrap;
    }
    
    .stat-card-small {
        flex: 1;
        min-width: 200px;
    }
}

@media (max-width: 1024px) {
    .sidebar {
    display: flex;
    flex-direction: column;
        width: 80px;
    }

    .logo h1,
    .nav-link span {
        display: none;
    }

    .main-content {
        margin-left: 80px;
    }

    .nav-link {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .sidebar {
    display: flex;
    flex-direction: column;
        display: none;
    }

    .main-content {
        margin-left: 0;
        padding: 1rem;
    }

    .header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

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

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

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

    .filters-form {
        flex-direction: column;
    }

    .search-box {
        width: 100%;
    }
}

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

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-primary);
}
/* Avatar System Styles */

.avatar-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.avatar-option {
    position: relative;
    cursor: pointer;
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.2s ease;
    border: 3px solid transparent;
}

.avatar-option:hover {
    transform: scale(1.05);
    border-color: var(--accent-primary);
}

.avatar-option input[type="radio"] {
    position: absolute;
    opacity: 0;
}

.avatar-option input[type="radio"]:checked + .avatar-image {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-primary);
}

.avatar-image {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    border-radius: 8px;
    border: 3px solid var(--border-color);
    transition: all 0.2s ease;
}

/* Avatar Icons - Using emoji/game-style avatars */
.avatar-icon {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    background: var(--bg-tertiary);
    border-radius: 8px;
    border: 3px solid var(--border-color);
    transition: all 0.2s ease;
}

/* Generate avatar using initials and colors */
.avatar-display {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
    border: 2px solid var(--border-color);
}

.avatar-display.large {
    width: 100px;
    height: 100px;
    font-size: 2.5rem;
}

/* Avatar color schemes based on avatar number */
.avatar-display[data-avatar="avatar1"] { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; }
.avatar-display[data-avatar="avatar2"] { background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%); color: white; }
.avatar-display[data-avatar="avatar3"] { background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%); color: white; }
.avatar-display[data-avatar="avatar4"] { background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%); color: white; }
.avatar-display[data-avatar="avatar5"] { background: linear-gradient(135deg, #fa709a 0%, #fee140 100%); color: white; }
.avatar-display[data-avatar="avatar6"] { background: linear-gradient(135deg, #30cfd0 0%, #330867 100%); color: white; }
.avatar-display[data-avatar="avatar7"] { background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%); color: #333; }
.avatar-display[data-avatar="avatar8"] { background: linear-gradient(135deg, #ff9a9e 0%, #fecfef 100%); color: #333; }
.avatar-display[data-avatar="avatar9"] { background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%); color: #333; }
.avatar-display[data-avatar="avatar10"] { background: linear-gradient(135deg, #ff6e7f 0%, #bfe9ff 100%); color: white; }
.avatar-display[data-avatar="avatar11"] { background: linear-gradient(135deg, #e0c3fc 0%, #8ec5fc 100%); color: white; }
.avatar-display[data-avatar="avatar12"] { background: linear-gradient(135deg, #f77062 0%, #fe5196 100%); color: white; }

/* Avatar emoji icons */
.avatar-emoji {
    font-size: 2.5rem;
}