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

:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --background: #f8fafc;
    --card-background: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --positive-color: #10b981;
    --negative-color: #ef4444;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.main-header {
    background-color: var(--card-background);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo a {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.main-nav {
    display: flex;
    gap: 20px;
}

.main-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.main-nav a:hover {
    color: var(--primary-color);
}

.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-box {
    background: var(--card-background);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    width: 100%;
    max-width: 400px;
}

.login-box h1 {
    text-align: center;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 30px;
    font-size: 14px;
}

.card {
    background: var(--card-background);
    border-radius: 8px;
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.card h2 {
    margin-bottom: 16px;
    color: var(--text-primary);
    font-size: 20px;
}

.card h3 {
    margin-bottom: 12px;
    color: var(--text-primary);
    font-size: 18px;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    margin-bottom: 24px;
}

.balance-display {
    font-size: 48px;
    font-weight: 700;
    text-align: center;
    padding: 20px;
    border-radius: 8px;
    margin: 16px 0;
}

.balance-display.positive {
    color: var(--positive-color);
    background-color: rgba(16, 185, 129, 0.1);
}

.balance-display.negative {
    color: var(--negative-color);
    background-color: rgba(239, 68, 68, 0.1);
}

.compliance-info {
    padding: 16px;
    background-color: var(--background);
    border-radius: 6px;
}

.compliance-info p {
    margin-bottom: 8px;
}

.quick-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

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

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 14px;
    font-family: inherit;
    transition: border-color 0.2s;
}

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

.form-group small {
    display: block;
    margin-top: 4px;
    color: var(--text-secondary);
    font-size: 12px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
}

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

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

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

.btn-secondary:hover {
    background-color: #475569;
}

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

.btn-danger:hover {
    background-color: #dc2626;
}

.btn-block {
    width: 100%;
}

.btn-small {
    padding: 6px 12px;
    font-size: 12px;
}

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

.data-table th,
.data-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    background-color: var(--background);
    font-weight: 600;
    color: var(--text-primary);
}

.data-table tr:hover {
    background-color: var(--background);
}

.data-table .positive {
    color: var(--positive-color);
    font-weight: 600;
}

.data-table .negative {
    color: var(--negative-color);
    font-weight: 600;
}

.tag {
    display: inline-block;
    padding: 4px 12px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.alert {
    padding: 12px 16px;
    border-radius: 6px;
    margin-bottom: 20px;
}

.alert-success {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
    border: 1px solid var(--success-color);
}

.alert-error {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--danger-color);
    border: 1px solid var(--danger-color);
}

.warning-text {
    color: var(--warning-color);
    font-weight: 600;
}

.success-text {
    color: var(--success-color);
    font-weight: 600;
}

.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-secondary);
}

.empty-state a {
    color: var(--primary-color);
    text-decoration: none;
}

.empty-state a:hover {
    text-decoration: underline;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.page-header h1 {
    margin: 0;
}

.text-center {
    text-align: center;
    margin-top: 16px;
}

.examples-list {
    list-style: none;
    padding: 0;
}

.examples-list li {
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
}

.examples-list li:last-child {
    border-bottom: none;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: var(--card-background);
    padding: 32px;
    border-radius: 12px;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-content h2 {
    margin-bottom: 24px;
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 16px;
    }
    
    .main-nav {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    
    .data-table {
        font-size: 12px;
    }
    
    .data-table th,
    .data-table td {
        padding: 8px;
    }
}

h1 {
    color: var(--text-primary);
    margin-bottom: 8px;
}

a {
    color: var(--primary-color);
}

a:hover {
    color: var(--primary-hover);
}