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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    background: white;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    overflow: hidden;
}

header {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
    padding: 30px 40px;
    text-align: center;
}

header h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
}

.subtitle {
    opacity: 0.9;
    font-size: 1.1em;
}

.section {
    padding: 40px;
}

#login-section {
    max-width: 400px;
    margin: 0 auto;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #333;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    font-size: 1em;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    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 6px 20px rgba(102, 126, 234, 0.4);
}

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

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

.btn-danger {
    background: #ff4757;
    color: white;
}

.btn-danger:hover {
    background: #ee5a6f;
}

.btn-success {
    background: #2ed573;
    color: white;
}

.btn-success:hover {
    background: #26d061;
}

.tabs {
    display: flex;
    background: #f8f9fa;
    padding: 0 40px;
    border-bottom: 2px solid #e0e0e0;
}

.tab {
    padding: 15px 25px;
    border: none;
    background: transparent;
    cursor: pointer;
    font-size: 1em;
    font-weight: 600;
    color: #666;
    transition: all 0.3s;
    border-bottom: 3px solid transparent;
}

.tab:hover {
    color: #667eea;
}

.tab.active {
    color: #667eea;
    border-bottom-color: #667eea;
}

.logout-btn {
    margin-left: auto;
    padding: 15px 25px;
    border: none;
    background: transparent;
    cursor: pointer;
    font-size: 1em;
    font-weight: 600;
    color: #ff4757;
}

.tab-content {
    display: none;
    padding: 40px;
}

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

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.stat-card {
    background: #f8f9fa;
    padding: 24px;
    border-radius: 8px;
    border-left: 4px solid #667eea;
}

.stat-card.active {
    border-left-color: #2ed573;
}

.stat-card.expired {
    border-left-color: #ffa502;
}

.stat-card.revoked {
    border-left-color: #ff4757;
}

.stat-label {
    font-size: 0.9em;
    color: #666;
    margin-bottom: 8px;
}

.stat-value {
    font-size: 2.5em;
    font-weight: 700;
    color: #333;
}

.toolbar {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
}

.search-box {
    flex: 1;
    padding: 10px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    font-size: 1em;
}

.filter-select {
    padding: 10px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    font-size: 1em;
}

.list {
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    overflow: hidden;
}

.list-item {
    padding: 20px;
    border-bottom: 1px solid #e0e0e0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.2s;
}

.list-item:hover {
    background: #f8f9fa;
}

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

.license-key {
    font-family: 'Courier New', monospace;
    background: #f0f0f0;
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 0.95em;
}

.badge {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.85em;
    font-weight: 600;
}

.badge-active {
    background: #d5f4e6;
    color: #2ed573;
}

.badge-expired {
    background: #ffe8cc;
    color: #ffa502;
}

.badge-revoked {
    background: #ffcccc;
    color: #ff4757;
}

.badge-suspended {
    background: #e0e0e0;
    color: #666;
}

.activity-list {
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    max-height: 400px;
    overflow-y: auto;
}

.activity-item {
    padding: 15px 20px;
    border-bottom: 1px solid #e0e0e0;
}

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

.activity-time {
    font-size: 0.85em;
    color: #999;
}

.checkbox-group {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 10px;
}

.checkbox-group.vertical {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.entitlement-section {
    padding: 16px;
    border: 1px solid #e6e9f1;
    border-radius: 8px;
    background: #fafbff;
}

.entitlement-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 15px;
}

.config-section {
    margin-bottom: 30px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
}

.info-box {
    margin-top: 15px;
    padding: 15px;
    background: #e3f2fd;
    border-left: 4px solid #2196f3;
    border-radius: 4px;
}

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

.info-table td {
    padding: 10px;
    border-bottom: 1px solid #e0e0e0;
}

.info-table td:first-child {
    font-weight: 600;
    width: 200px;
}

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

.modal-content {
    background-color: #fefefe;
    margin: 10% auto;
    padding: 30px;
    border-radius: 12px;
    width: 90%;
    max-width: 900px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close:hover {
    color: #000;
}

textarea {
    resize: vertical;
}

@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }

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

    .toolbar {
        flex-direction: column;
    }

    .tabs {
        flex-wrap: wrap;
    }
}