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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f5f5f5;
}

/* Loading Screen */
.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: #fff;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #0066cc;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

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

.login-container {
    background: white;
    padding: 3rem;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    max-width: 450px;
    width: 100%;
    text-align: center;
}

.login-container h1 {
    margin-bottom: 0.5rem;
    color: #333;
}

.login-container p {
    margin-bottom: 2rem;
    color: #666;
}

/* Header */
.header {
    background: white;
    border-bottom: 1px solid #e0e0e0;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header h1 {
    font-size: 1.5rem;
    color: #0066cc;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-info span {
    color: #666;
    font-size: 0.9rem;
}

/* Main Content */
.main {
    padding: 2rem 0;
    min-height: calc(100vh - 200px);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    background: white;
    border-radius: 8px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.section h2 {
    margin-bottom: 1.5rem;
    color: #333;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.stat-card {
    padding: 1.5rem;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 4px solid #0066cc;
}

.stat-label {
    font-size: 0.875rem;
    color: #666;
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: bold;
    color: #0066cc;
}

.stat-badge {
    display: inline-block;
    margin-top: 0.5rem;
    padding: 0.25rem 0.75rem;
    background: #4caf50;
    color: white;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: bold;
}

/* Packages Grid */
.packages-grid, .subscriptions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.package-card, .subscription-card {
    padding: 2rem;
    background: #f8f9fa;
    border-radius: 8px;
    border: 2px solid #e0e0e0;
    text-align: center;
    transition: all 0.3s ease;
}

.package-card:hover, .subscription-card:hover {
    border-color: #0066cc;
    transform: translateY(-4px);
    box-shadow: 0 4px 12px rgba(0,102,204,0.15);
}

.package-label, .subscription-label {
    font-size: 1.25rem;
    font-weight: bold;
    color: #333;
    margin-bottom: 0.5rem;
}

.package-credits, .subscription-price {
    font-size: 2rem;
    font-weight: bold;
    color: #0066cc;
    margin: 1rem 0;
}

.package-price, .subscription-credits {
    font-size: 1.125rem;
    color: #666;
    margin-bottom: 1.5rem;
}

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

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

.usage-table th,
.usage-table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid #e0e0e0;
}

.usage-table th {
    background: #f8f9fa;
    font-weight: 600;
    color: #666;
    font-size: 0.875rem;
    text-transform: uppercase;
}

.usage-table tr:hover {
    background: #f8f9fa;
}

.status-success {
    color: #4caf50;
    font-weight: bold;
}

.status-error {
    color: #f44336;
    font-weight: bold;
}

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background: #0066cc;
    color: white;
}

.btn-primary:hover {
    background: #0052a3;
}

.btn-secondary {
    background: #f0f0f0;
    color: #333;
}

.btn-secondary:hover {
    background: #e0e0e0;
}

.btn-success {
    background: #4caf50;
    color: white;
}

.btn-success:hover {
    background: #45a049;
}

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

/* Footer */
.footer {
    background: white;
    border-top: 1px solid #e0e0e0;
    padding: 2rem 0;
    text-align: center;
    color: #666;
}

/* Toast Notifications */
#toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
}

.toast {
    background: white;
    padding: 1rem 1.5rem;
    margin-bottom: 0.5rem;
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    display: flex;
    align-items: center;
    gap: 1rem;
    min-width: 300px;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.toast-success {
    border-left: 4px solid #4caf50;
}

.toast-error {
    border-left: 4px solid #f44336;
}

.toast-info {
    border-left: 4px solid #0066cc;
}

/* Portal Tabs */
.portal-tabs {
    display: flex;
    background: white;
    border-bottom: 1px solid #e0e0e0;
    padding: 0 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.portal-tab {
    padding: 1rem 2rem;
    border: none;
    background: none;
    font-size: 1rem;
    font-weight: 500;
    color: #666;
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all 0.2s;
}

.portal-tab:hover {
    color: #333;
}

.portal-tab.active {
    color: #0066cc;
    border-bottom-color: #0066cc;
}

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

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

/* Admin Forms */
.admin-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.form-row {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.form-group {
    flex: 1;
    min-width: 200px;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: #555;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #0066cc;
}

/* Stat Detail */
.stat-detail {
    font-size: 0.875rem;
    color: #666;
    margin-top: 0.25rem;
}

/* Small buttons */
.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* Code styling */
code {
    background: #f8f9fa;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-family: monospace;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-dialog {
    background: white;
    border-radius: 8px;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid #e0e0e0;
}

.modal-header h2 {
    margin: 0;
    font-size: 1.25rem;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #888;
    padding: 0;
    line-height: 1;
}

.modal-close:hover {
    color: #333;
}

.modal-body {
    padding: 1.5rem;
}

/* Pagination */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }

    .portal-tabs {
        padding: 0 1rem;
        overflow-x: auto;
    }

    .portal-tab {
        padding: 0.75rem 1rem;
        font-size: 0.875rem;
    }

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

    .packages-grid, .subscriptions-grid {
        grid-template-columns: 1fr;
    }

    .container {
        padding: 0 1rem;
    }

    .section {
        padding: 1.5rem;
    }

    .usage-table {
        font-size: 0.875rem;
    }

    .usage-table th,
    .usage-table td {
        padding: 0.5rem;
    }

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

    .form-group {
        min-width: 100%;
    }

    .modal-dialog {
        width: 95%;
        max-height: 85vh;
    }
}