body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: #f4f4f9;
    color: #333;
    margin: 0;
    padding: 20px;
    display: flex;
    justify-content: center;
}

.container {
    width: 100%;
    max-width: 900px;
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.tabs {
    display: flex;
    border-bottom: 1px solid #ddd;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.tab-link {
    background: none;
    border: none;
    padding: 10px 15px;
    cursor: pointer;
    font-size: 16px;
    border-bottom: 3px solid transparent;
    margin-bottom: -1px;
}

.tab-link.active {
    border-bottom-color: #007bff;
    color: #007bff;
    font-weight: bold;
}

.tab-link:hover {
    background-color: #f0f0f0;
}

.tab-content {
    display: none;
    animation: fadeIn 0.5s;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.daily-pick-container h2 {
    font-size: 2.5rem;
    color: #007bff;
    margin: 10px 0;
    text-align: center;
}

.historical-picks-container ul {
    list-style-type: none;
    padding: 0;
}

.historical-picks-container li {
    background: #fafafa;
    padding: 10px;
    border-bottom: 1px solid #eee;
}

.ticker-link {
    text-decoration: none;
    color: #0056b3;
    font-weight: bold;
}
.ticker-link:hover {
    text-decoration: underline;
}

.portfolio-summary {
    display: flex;
    justify-content: space-around;
    padding: 15px;
    background: #f9f9f9;
    border-radius: 8px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.portfolio-metric {
    text-align: center;
    margin: 10px;
}

.portfolio-metric .label {
    font-size: 0.9rem;
    color: #666;
    display: block;
}

.portfolio-metric .value {
    font-size: 1.5rem;
    font-weight: bold;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

th, td {
    padding: 12px;
    border: 1px solid #ddd;
    text-align: left;
}

th {
    background-color: #f7f7f7;
    font-weight: bold;
}

.positive-return {
    color: #28a745;
    font-weight: bold;
}

.negative-return {
    color: #dc3545;
    font-weight: bold;
}

.spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #3498db;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}