.octoprice-graph-container {
    background: #fff;
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    margin: 20px 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
}

.octoprice-filters {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
    align-items: end;
}

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

.filter-group label {
    font-weight: 600;
    font-size: 0.85rem;
    color: #444;
}

.filter-group select,
.filter-group input {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 0.9rem;
}

#octo-update-btn {
    background: linear-gradient(135deg, #00d4ff 0%, #0045ff 100%);
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, opacity 0.2s;
}

#octo-update-btn:hover {
    transform: translateY(-2px);
    opacity: 0.9;
}

.octoprice-chart-wrapper {
    position: relative;
    height: 400px;
    width: 100%;
}

.octoprice-notice {
    margin-top: 15px;
    padding: 12px;
    background-color: #fff3cd;
    border: 1px solid #ffeeba;
    color: #856404;
    border-radius: 8px;
    font-size: 0.9em;
}

.octoprice-notice strong {
    color: #533f03;
}

#octoprice-loader {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(255, 255, 255, 0.8);
    padding: 15px 30px;
    border-radius: 30px;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.octo-btn-secondary {
    background: #f0f0f1;
    color: #333;
    border: 1px solid #ccc;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.octo-btn-secondary:hover {
    background: #e5e5e5;
}

.price-box {
    animation: fadeIn 0.4s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}