body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #0f1218;
    color: #e6e6e6;
    margin: 0;
    padding: 20px;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
}
header {
    text-align: center;
    margin-bottom: 30px;
    border-bottom: 1px solid #2a394f;
    padding-bottom: 20px;
}
h1 {
    color: #d5a677;
}
.search-box {
    display: flex;
    margin-bottom: 20px;
}
.search-box input {
    flex: 1;
    padding: 10px;
    border: 1px solid #2a394f;
    background-color: #1a2635;
    color: #e6e6e6;
}
.search-box button {
    padding: 10px 15px;
    background-color: #d5a677;
    border: none;
    color: #0f1218;
    cursor: pointer;
}
.search-results {
    margin-bottom: 20px;
    max-height: 300px;
    overflow-y: auto;
    background-color: #1a2635;
    border: 1px solid #2a394f;
    display: none;
}
.search-results div {
    padding: 10px;
    cursor: pointer;
    border-bottom: 1px solid #2a394f;
}
.search-results div:hover {
    background-color: #2a394f;
}
.calculator {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
.panel {
    background-color: #1a2635;
    border: 1px solid #2a394f;
    padding: 20px;
    border-radius: 5px;
}
.panel h2 {
    color: #d5a677;
    margin-top: 0;
}
.blueprint-info, .material-list, .cost-breakdown, .profit-analysis {
    margin-bottom: 20px;
}
table {
    width: 100%;
    border-collapse: collapse;
}
th, td {
    padding: 10px;
    text-align: left;
    border-bottom: 1px solid #2a394f;
}
th {
    background-color: #2a394f;
}
.material-list {
    max-height: 300px;
    overflow-y: auto;
}
.profit-good {
    color: #4CAF50;
}
.profit-bad {
    color: #f44336;
}
.settings {
    margin-bottom: 20px;
}
.settings label {
    margin-right: 10px;
}
.settings select, .settings input {
    padding: 5px;
    background-color: #1a2635;
    border: 1px solid #2a394f;
    color: #e6e6e6;
}
.loading {
    display: none;
    text-align: center;
    margin: 20px 0;
}
.spinner {
    border: 4px solid rgba(0, 0, 0, 0.1);
    border-radius: 50%;
    border-top: 4px solid #d5a677;
    width: 30px;
    height: 30px;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
.error {
    background-color: rgba(244, 67, 54, 0.1);
    border: 1px solid #f44336;
    color: #f44336;
    padding: 10px;
    margin: 10px 0;
    border-radius: 5px;
    display: none;
}
.api-status {
    margin-top: 10px;
    font-size: 0.8em;
    color: #aaa;
}