.admin-controls {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.admin-btn {
    flex: 1;
    min-width: 200px;
    padding: 14px 20px;
    background: linear-gradient(135deg, var(--accent-color) 0%, #9d8eff 100%);
    color: white;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.admin-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.period-controls {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 20px;
    margin-bottom: 25px;
}

.period-item {
    background: linear-gradient(135deg, #f8faff 0%, #ffffff 100%);
    padding: 20px;
    border-radius: 14px;
    border: 2px solid var(--light-border);
    transition: all 0.3s ease;
}

.period-item:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow);
}

.period-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.period-title {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 1.1rem;
}

.time-controls {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 12px;
}

.time-control {
    display: flex;
    flex-direction: column;
}

.time-control label {
    font-size: 0.9rem;
    margin-bottom: 6px;
    color: #4b5563;
    font-weight: 500;
}

.time-control input {
    padding: 12px;
    font-size: 0.9rem;
    border-radius: 8px;
}

.export-controls,
.reset-controls,
.analysis-controls {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px;
    margin-bottom: 20px;
}

.analysis-results {
    margin-top: 25px;
    max-height: 500px;
    overflow-y: auto;
    border-radius: 12px;
    border: 1px solid var(--light-border);
}

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

.analysis-table th,
.analysis-table td {
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid var(--light-border);
}

.analysis-table th {
    background: linear-gradient(135deg, #f8faff 0%, #eef2ff 100%);
    font-weight: 600;
    color: var(--primary-color);
    position: sticky;
    top: 0;
}

.analysis-table tr {
    transition: background-color 0.2s ease;
}

.analysis-table tr:hover {
    background: linear-gradient(135deg, #f0f4ff 0%, #f8faff 100%);
}

.analysis-table tr:nth-child(even) {
    background-color: #fafbff;
}

.analysis-table tr:nth-child(even):hover {
    background: linear-gradient(135deg, #eef2ff 0%, #f0f4ff 100%);
}

.success-message {
    background: linear-gradient(135deg, rgba(74, 222, 128, 0.15) 0%, rgba(187, 247, 208, 0.3) 100%);
    color: #166534;
    padding: 16px;
    border-radius: 10px;
    margin-top: 20px;
    text-align: center;
    display: none;
    border: 1px solid rgba(74, 222, 128, 0.3);
    font-weight: 500;
}

.error-message-panel {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.15) 0%, rgba(254, 202, 202, 0.3) 100%);
    color: #991b1b;
    padding: 16px;
    border-radius: 10px;
    margin-top: 20px;
    text-align: center;
    display: none;
    border: 1px solid rgba(239, 68, 68, 0.3);
    font-weight: 500;
}

.reset-warning {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.15) 0%, rgba(253, 230, 138, 0.3) 100%);
    color: #92400e;
    padding: 16px;
    border-radius: 10px;
    margin-top: 15px;
    text-align: center;
    border: 1px solid rgba(245, 158, 11, 0.3);
    font-weight: 500;
}

@media (max-width: 768px) {
    .admin-controls {
        flex-direction: column;
    }
    
    .period-controls {
        grid-template-columns: 1fr;
    }
    
    .time-controls {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .export-controls,
    .reset-controls,
    .analysis-controls {
        grid-template-columns: 1fr;
    }
    
    .analysis-table {
        font-size: 0.9rem;
    }
    
    .analysis-table th,
    .analysis-table td {
        padding: 10px 12px;
    }
}