.opp-widget {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    max-width: 600px;
    margin: 20px auto;
    padding: 20px;
    border-radius: 12px;
    background: #fff;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    color: var(--simcalculo-text, #172033);
}

.opp-nav {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
    justify-content: center;
}

.opp-nav a {
    font-size: 12px;
    text-decoration: none;
    color: var(--simcalculo-muted, #64748b);
    padding: 4px 12px;
    border-radius: 20px;
    background: #f0f0f0;
    transition: all 0.2s;
}

.opp-nav a:hover {
    background: var(--simcalculo-border, #dbe3ec);
    color: var(--simcalculo-text, #172033);
}

.opp-title {
    font-size: 1.4rem;
    font-weight: 700;
    text-align: center;
    margin: 0 0 20px 0;
}

.opp-main {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding: 15px;
    background: #f9f9f9;
    border-radius: 8px;
}

.opp-price {
    display: flex;
    flex-direction: column;
}

.opp-val {
    font-size: 2rem;
    font-weight: 800;
    color: #1a1a1a;
}

.opp-unit {
    font-size: 0.9rem;
    color: var(--simcalculo-muted, #64748b);
}

.opp-change {
    font-weight: 700;
    font-size: 1.1rem;
    padding: 5px 10px;
    border-radius: 6px;
}

.opp-change.up { color: #27ae60; background: #e8f6ef; }
.opp-change.down { color: #e74c3c; background: #fdecea; }

.opp-chart-container {
    height: 200px;
    margin-bottom: 20px;
}

.opp-details {
    font-size: 0.8rem;
    color: #999;
    text-align: center;
    border-top: 1px solid #eee;
    padding-top: 10px;
}


.opp-widget,.opp-widget *{box-sizing:border-box}.opp-widget{max-width:760px;color:#172033}.opp-nav a{font-size:14px;min-height:44px;display:flex;align-items:center}.opp-main{gap:12px;flex-wrap:wrap}.opp-change{font-size:.9rem}.opp-status,.opp-details{color:#46556a;font-size:.875rem;line-height:1.6}.opp-form{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:22px 0 12px}.opp-form label{display:flex;flex-direction:column;gap:7px;font-weight:600}.opp-form input,.opp-form select{width:100%;min-width:0;min-height:48px;font-size:16px;border:1px solid #bdcbd6;border-radius:7px;padding:10px;background:#fff;color:#172033}.opp-form button{grid-column:1/-1;min-height:48px;border:0;border-radius:7px;background:#13708a;color:#fff;font-weight:700;cursor:pointer;padding:12px}.opp-form :focus-visible{outline:3px solid #d4af37;outline-offset:3px}.opp-result{display:block;padding:15px;background:#edf7f8;border-radius:8px;font-weight:700;font-size:1.15rem;min-height:58px}.opp-note,.opp-method,.opp-credit{font-size:.875rem;line-height:1.6;color:#46556a}.opp-table{width:100%;border-collapse:collapse;margin:22px 0}.opp-table caption{font-weight:700;text-align:left;margin-bottom:10px}.opp-table th,.opp-table td{padding:10px;text-align:left;border-bottom:1px solid #e2e8ee}.opp-method summary{cursor:pointer;font-weight:700;min-height:44px;padding:10px 0}.opp-chart-container{position:relative}.opp-details a,.opp-credit a{color:#11647c}.opp-form input:invalid{box-shadow:none}
@media(max-width:480px){.opp-form{grid-template-columns:1fr}.opp-val{font-size:1.7rem}.opp-widget{margin:12px 0;padding:16px}.opp-main{padding:12px}.opp-title{font-size:1.2rem}.opp-table th,.opp-table td{padding:8px}.opp-result{font-size:1rem}}