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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

.header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 30px;
    text-align: center;
}

.header h1 {
    font-size: 2em;
    margin-bottom: 10px;
}

.tabs {
    display: flex;
    background: #f8f9fa;
    border-bottom: 2px solid #dee2e6;
    flex-wrap: wrap;
}

.tab {
    flex: 1;
    padding: 15px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    border: none;
    background: transparent;
    font-size: 16px;
    font-weight: 500;
    color: #666;
}

.tab:hover {
    background: #e9ecef;
}

.tab.active {
    background: white;
    color: #667eea;
    border-bottom: 3px solid #667eea;
}

.tab-content {
    display: none;
    padding: 30px;
}

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

.search-bar {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.search-bar input,
.search-bar select,
.search-bar button {
    padding: 12px 20px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
}

.search-bar input {
    flex: 1;
    min-width: 200px;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn-success {
    background: #28a745;
    color: white;
}

.btn-success:hover {
    background: #218838;
}

.btn-danger {
    background: #dc3545;
    color: white;
}

.btn-danger:hover {
    background: #c82333;
}

.btn-warning {
    background: #ffc107;
    color: #212529;
}

.btn-warning:hover {
    background: #e0a800;
}

.table-container {
    overflow-x: auto;
    margin-top: 20px;
}

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

thead {
    background: #f8f9fa;
}

th, td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid #dee2e6;
}

th {
    font-weight: 600;
    color: #495057;
}

tbody tr:hover {
    background: #f8f9fa;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: white;
    padding: 30px;
    border-radius: 15px;
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

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

.modal-header h2 {
    color: #333;
}

.close {
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    color: #999;
    transition: color 0.3s;
}

.close:hover {
    color: #333;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #333;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.form-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 20px;
}

.badge {
    padding: 5px 10px;
    border-radius: 5px;
    font-size: 12px;
    font-weight: 500;
}

.badge-add {
    background: #d4edda;
    color: #155724;
}

.badge-consume {
    background: #f8d7da;
    color: #721c24;
}

.stats-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.stat-card h3 {
    font-size: 14px;
    margin-bottom: 10px;
    opacity: 0.9;
}

.stat-card .value {
    font-size: 32px;
    font-weight: bold;
}

.alert {
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.loading {
    text-align: center;
    padding: 40px;
    color: #999;
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: #999;
}

.empty-state img {
    width: 150px;
    opacity: 0.3;
    margin-bottom: 20px;
}

@media (max-width: 768px) {
    .container {
        margin: 0;
        border-radius: 0;
    }

    .tabs {
        flex-wrap: wrap;
    }

    .tab {
        flex: 1 1 50%;
    }

    .tab-content {
        padding: 15px;
    }

    .search-bar {
        flex-direction: column;
    }

    .search-bar input,
    .search-bar button {
        width: 100%;
    }

    table {
        font-size: 12px;
    }

    th, td {
        padding: 10px 5px;
    }

    .modal-content {
        width: 95%;
        padding: 20px;
    }

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

@media (max-width: 480px) {
    .header h1 {
        font-size: 1.5em;
    }

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

    .btn {
        width: 100%;
    }
}