.elc-wrapper { max-width: 700px; margin: 30px auto; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif; }
.elc-card { background: #fff; padding: 30px; border-radius: 12px; box-shadow: 0 10px 30px rgba(0,0,0,0.08); border: 1px solid #e0e0e0; }
.elc-card h2 { margin-top: 0; color: #1d2327; margin-bottom: 5px; font-size: 24px; }
.elc-row { display: flex; gap: 12px; margin-bottom: 12px; align-items: center; background: #f9f9f9; padding: 10px; border-radius: 8px; border: 1px solid #f0f0f1; }
.elc-col { flex: 1; }
.elc-select, .elc-watt-input, .elc-qty-input { width: 100%; padding: 10px; border: 1px solid #ccd0d4; border-radius: 6px; font-size: 14px; box-sizing: border-box; }
.elc-btn-secondary { background: #2271b1; border: none; color: white; padding: 12px 20px; border-radius: 6px; cursor: pointer; transition: 0.2s; font-weight: 600; }
.elc-btn-secondary:hover { background: #135e96; }
.elc-remove { background: #d63638; color: white; border: none; width: 30px; height: 30px; border-radius: 50%; cursor: pointer; font-size: 18px; line-height: 1; display: flex; align-items: center; justify-content: center; }
.elc-result-display { display: flex; gap: 15px; margin-top: 25px; padding-top: 20px; border-top: 2px solid #f0f0f1; }
.res-item { flex: 1; background: #f0f6fa; padding: 20px; border-radius: 10px; text-align: center; border: 1px solid #c3d4e3; }
.res-item span { display: block; font-size: 11px; color: #50575e; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 5px; }
.res-item strong { font-size: 28px; color: #2271b1; }
@media (max-width: 600px) { 
    .elc-row { flex-direction: column; align-items: stretch; } 
    .elc-result-display { flex-direction: column; }
}