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

:root {
    --bg-primary: #0f0f23;
    --bg-secondary: #1a1a2e;
    --bg-tertiary: #16213e;
    --bg-card: #1e1e3f;
    --bg-hover: #252550;
    --text-primary: #e4e4e7;
    --text-secondary: #a1a1aa;
    --text-tertiary: #71717a;
    --accent: #6366f1;
    --accent-hover: #4f46e5;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --border: #2d2d44;
    --border-light: #3a3a55;
    --shadow: rgba(0, 0, 0, 0.3);
    --shadow-lg: rgba(0, 0, 0, 0.5);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Inter', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

.screen {
    width: 100%;
    min-height: 100vh;
}

/* Login Screen */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.login-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 20px 60px var(--shadow-lg);
    width: 100%;
    max-width: 420px;
    backdrop-filter: blur(10px);
}

.login-box h1 {
    text-align: center;
    color: var(--accent);
    margin-bottom: 8px;
    font-size: 28px;
    font-weight: 700;
}

.subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 32px;
    font-size: 14px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 14px;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: 15px;
    color: var(--text-primary);
    transition: all 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent);
    background: var(--bg-tertiary);
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-primary {
    background: var(--accent);
    color: white;
    width: 100%;
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

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

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

.btn-small {
    padding: 8px 16px;
    font-size: 13px;
    width: auto;
}

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

.btn-success:hover {
    background: #059669;
}

.error-message {
    margin-top: 16px;
    padding: 12px;
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    border-radius: 10px;
    text-align: center;
    font-size: 14px;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Dashboard Screen */
.header {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header h1 {
    color: var(--text-primary);
    font-size: 22px;
    font-weight: 700;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.affiliate-name {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 14px;
}

.main-content {
    max-width: 1400px;
    margin: 32px auto;
    padding: 0 24px;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 20px;
    transition: all 0.2s;
}

.stat-card:hover {
    transform: translateY(-2px);
    border-color: var(--border-light);
    box-shadow: 0 8px 24px var(--shadow);
}

.stat-icon {
    font-size: 32px;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent) 0%, #8b5cf6 100%);
    border-radius: 12px;
    flex-shrink: 0;
}

.stat-info {
    flex: 1;
    min-width: 0;
}

.stat-info h3 {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 6px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

/* Promo Section */
.promo-section {
    margin-bottom: 32px;
}

.promo-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
}

.promo-card h2 {
    margin-bottom: 20px;
    color: var(--text-primary);
    font-size: 18px;
    font-weight: 600;
}

.promo-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.promo-item {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.promo-item label {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.promo-code, .promo-link {
    padding: 12px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 10px;
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 13px;
    word-break: break-all;
    color: var(--text-primary);
}

/* Tabs */
.tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--border);
    overflow-x: auto;
}

.tab-btn {
    padding: 12px 20px;
    border: none;
    background: none;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
    white-space: nowrap;
    position: relative;
}

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

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

/* Tab Content */
.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Stats Details */
.stats-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.detail-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
}

.detail-card h3 {
    margin-bottom: 20px;
    color: var(--text-primary);
    font-size: 16px;
    font-weight: 600;
}

.detail-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
}

.detail-item:last-child {
    border-bottom: none;
}

.detail-item span {
    color: var(--text-secondary);
    font-size: 14px;
}

.detail-item strong {
    color: var(--text-primary);
    font-size: 15px;
    font-weight: 600;
}

/* Table */
.table-container {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    overflow-x: auto;
}

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

.data-table thead {
    background: var(--bg-secondary);
}

.data-table th {
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border);
}

.data-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
    color: var(--text-primary);
}

.data-table tbody tr:hover {
    background: var(--bg-secondary);
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

.data-table .loading {
    text-align: center;
    color: var(--text-tertiary);
    padding: 40px;
}

.status-badge {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: inline-block;
}

.status-pending {
    background: rgba(245, 158, 11, 0.15);
    color: var(--warning);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.status-calculated {
    background: rgba(99, 102, 241, 0.15);
    color: var(--accent);
    border: 1px solid rgba(99, 102, 241, 0.3);
}

.status-paid {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

/* Filters */
.filter-section {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 24px;
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: flex-end;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-width: 150px;
}

.filter-group label {
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.filter-group select,
.filter-group input {
    padding: 10px 14px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: 14px;
    color: var(--text-primary);
    transition: all 0.2s;
}

.filter-group select:focus,
.filter-group input:focus {
    outline: none;
    border-color: var(--accent);
    background: var(--bg-tertiary);
}

/* Payment Section */
.payment-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 24px;
}

.payment-card h3 {
    margin-bottom: 20px;
    color: var(--text-primary);
    font-size: 18px;
    font-weight: 600;
}

.payment-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.payment-item {
    padding: 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
}

.payment-item label {
    display: block;
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.payment-item .value {
    font-size: 16px;
    color: var(--text-primary);
    font-weight: 600;
}

.payment-request {
    padding: 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    margin-top: 20px;
}

.payment-request h4 {
    margin-bottom: 16px;
    color: var(--text-primary);
    font-size: 16px;
    font-weight: 600;
}

.payment-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.payment-form .form-group {
    margin-bottom: 0;
}

.payment-form .btn {
    width: 100%;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-tertiary);
}

.empty-state-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state-text {
    font-size: 14px;
}

/* Responsive */
@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .header-content {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    .promo-info {
        grid-template-columns: 1fr;
    }
    
    .tabs {
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .table-container {
        padding: 16px;
    }
    
    .data-table {
        font-size: 12px;
    }
    
    .data-table th,
    .data-table td {
        padding: 10px 8px;
    }
    
    .filter-section {
        flex-direction: column;
    }
    
    .filter-group {
        width: 100%;
    }
}

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

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

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

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