.rmc-calculator-container,
.rmc-calculator-container * { box-sizing: border-box; }
.rmc-calculator-container {
    max-width: 560px;
    margin: 20px auto;
    padding: 22px;
    border: 1px solid var(--rmc-border-color, #ddd);
    background: var(--rmc-background-color, #fff);
    color: var(--rmc-text-color, #222);
}
.rmc-calculator-container h3,
.rmc-calculator-container h4,
.rmc-calculator-container p,
.rmc-calculator-container label { color: inherit; }
.rmc-calculator-container .rmc-field { margin-bottom: 15px; }
.rmc-calculator-container label { display: block; font-weight: 700; margin-bottom: 5px; }
.rmc-calculator-container input,
.rmc-calculator-container select { width: 100%; padding: 8px; min-height: 42px; background: #fff; color: #222; border: 1px solid var(--rmc-border-color, #ddd); border-radius: 3px; font: inherit; }
.rmc-calculator-container .rmc-submit-btn,
.rmc-calculator-container .rmc-add-to-cart-btn {
    width: 100%;
    min-height: 44px;
    padding: 10px 14px;
    border: 0;
    border-radius: var(--rmc-button-radius, 4px);
    font: inherit;
    font-weight: 700;
    line-height: 1.5;
    text-transform: none;
    white-space: normal;
    cursor: pointer;
    box-shadow: none;
}
.rmc-calculator-container .rmc-submit-btn { background: var(--rmc-calculate-color, #0071a1); color: var(--rmc-calculate-text-color, #fff); }
.rmc-calculator-container .rmc-submit-btn:hover { background: var(--rmc-calculate-hover, #005780); color: var(--rmc-calculate-text-color, #fff); }
.rmc-calculator-container .rmc-add-to-cart-btn { margin-top: 10px; background: var(--rmc-cart-color, #188329); color: var(--rmc-cart-text-color, #fff); }
.rmc-calculator-container .rmc-add-to-cart-btn:hover { background: var(--rmc-cart-hover, #10611d); color: var(--rmc-cart-text-color, #fff); }
.rmc-calculator-container button:disabled { opacity: 0.65; cursor: wait; }
.rmc-calculator-container :focus-visible { outline: 2px solid currentColor; outline-offset: 3px; }
.rmc-calculator-container .rmc-results { margin-top: 20px; padding: 15px; background: var(--rmc-results-color, #f9f9f9); border-left: 4px solid var(--rmc-calculate-color, #0071a1); overflow-wrap: anywhere; }
.rmc-calculator-container [hidden] { display: none !important; }
.rmc-calculator-container .rmc-results { --rmc-rule: rgba(0, 0, 0, 0.1); --rmc-rule: color-mix(in srgb, currentColor 14%, transparent); }
.rmc-calculator-container .rmc-results-title { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 4px 12px; margin: 0 0 14px; font-size: 1.25em; line-height: 1.3; }
.rmc-calculator-container .rmc-results-surface { font-size: 0.75em; font-weight: 400; opacity: 0.75; }
.rmc-calculator-container .rmc-group { margin: 0 0 14px; padding: 12px 14px; background: var(--rmc-background-color, #fff); border: 1px solid var(--rmc-rule); border-radius: 6px; }
.rmc-calculator-container .rmc-group-head { display: flex; flex-direction: column; gap: 2px; padding-bottom: 8px; border-bottom: 1px solid var(--rmc-rule); }
.rmc-calculator-container .rmc-group-label { font-weight: 700; font-size: 0.8em; letter-spacing: 0.06em; text-transform: uppercase; color: var(--rmc-calculate-color, #0071a1); }
.rmc-calculator-container .rmc-group-need { font-size: 0.9em; opacity: 0.8; }
.rmc-calculator-container .rmc-lines { list-style: none; margin: 0; padding: 0; }
.rmc-calculator-container .rmc-line { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin: 0; padding: 9px 0 0; }
.rmc-calculator-container .rmc-line + .rmc-line { margin-top: 9px; border-top: 1px dashed var(--rmc-rule); }
.rmc-calculator-container .rmc-line-info { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.rmc-calculator-container .rmc-line-name { font-weight: 600; line-height: 1.35; }
.rmc-calculator-container .rmc-line-meta { font-size: 0.85em; opacity: 0.75; font-variant-numeric: tabular-nums; }
.rmc-calculator-container .rmc-line-total { flex: none; font-weight: 700; white-space: nowrap; font-variant-numeric: tabular-nums; }
.rmc-calculator-container .rmc-totals { margin: 18px 0 0; padding: 12px 14px; border-top: 2px solid var(--rmc-calculate-color, #0071a1); }
.rmc-calculator-container .rmc-total-row { display: flex; justify-content: space-between; gap: 12px; padding: 3px 0; font-variant-numeric: tabular-nums; }
.rmc-calculator-container .rmc-total-row dt,
.rmc-calculator-container .rmc-total-row dd { margin: 0; font-weight: 400; }
.rmc-calculator-container .rmc-total-row dd { white-space: nowrap; }
.rmc-calculator-container .rmc-grand-total { margin-top: 6px; padding-top: 9px; border-top: 1px solid var(--rmc-rule); font-size: 1.2em; }
.rmc-calculator-container .rmc-grand-total dt,
.rmc-calculator-container .rmc-grand-total dd { font-weight: 700; }
.rmc-calculator-container .rmc-note { margin: 8px 0 0; font-size: 0.82em; opacity: 0.7; }
.rmc-calculator-container .rmc-error { color: #b00020; font-weight: 600; }
@media (max-width: 420px) {
    .rmc-calculator-container { padding: 16px; }
    .rmc-calculator-container .rmc-results { padding: 12px; }
    .rmc-calculator-container .rmc-group { padding: 10px 12px; }
}