.zs-utility-bill-tool {
    --zs-primary: #2563eb;
    --zs-primary-dark: #1d4ed8;
    --zs-text: #172033;
    --zs-muted: #667085;
    --zs-border: #d9e2ef;
    --zs-soft: #f6f9fc;
    --zs-error-bg: #fff1f2;
    --zs-error-border: #fecdd3;
    --zs-error-text: #b42318;
    color: var(--zs-text);
    max-width: 860px;
    margin: 0 auto;
    font-family: inherit;
}

.zs-utility-bill-tool *,
.zs-utility-bill-tool *::before,
.zs-utility-bill-tool *::after {
    box-sizing: border-box;
}

.zs-utility-bill-tool .zs-calculator-card {
    background: #ffffff;
    border: 1px solid var(--zs-border);
    border-radius: 24px;
    padding: 28px;
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.08);
}

.zs-utility-bill-tool .zs-utility-split-form {
    display: grid;
    gap: 22px;
}

.zs-utility-bill-tool .zs-input-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.zs-utility-bill-tool .zs-field-group,
.zs-utility-bill-tool .zs-method-fieldset,
.zs-utility-bill-tool .zs-split-panel,
.zs-utility-bill-tool .zs-results {
    border: 1px solid var(--zs-border);
    border-radius: 18px;
    background: var(--zs-soft);
    padding: 18px;
}

.zs-utility-bill-tool .zs-field-group label,
.zs-utility-bill-tool .zs-method-fieldset legend,
.zs-utility-bill-tool .zs-unit-row label {
    display: block;
    color: var(--zs-text);
    font-size: 15px;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 10px;
}

.zs-utility-bill-tool .zs-method-fieldset {
    margin: 0;
}

.zs-utility-bill-tool .zs-method-fieldset legend {
    padding: 0;
}

.zs-utility-bill-tool .zs-unit-count,
.zs-utility-bill-tool .zs-unit-name,
.zs-utility-bill-tool .zs-unit-pct,
.zs-utility-bill-tool .zs-bill-amount {
    width: 100%;
    min-height: 48px;
    border: 1px solid var(--zs-border);
    border-radius: 12px;
    background: #ffffff;
    color: var(--zs-text);
    font: inherit;
    font-size: 16px;
    padding: 12px 14px;
    outline: none;
    transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.zs-utility-bill-tool .zs-bill-amount {
    padding-left: 34px;
}

.zs-utility-bill-tool .zs-money-input-wrap {
    position: relative;
}

.zs-utility-bill-tool .zs-money-prefix {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1;
    color: var(--zs-muted);
    font-weight: 800;
    pointer-events: none;
}

.zs-utility-bill-tool .zs-unit-count:focus,
.zs-utility-bill-tool .zs-unit-name:focus,
.zs-utility-bill-tool .zs-unit-pct:focus,
.zs-utility-bill-tool .zs-bill-amount:focus {
    border-color: var(--zs-primary);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.13);
}

.zs-utility-bill-tool .zs-method-options {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.zs-utility-bill-tool .zs-method-card {
    position: relative;
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 58px;
    margin: 0;
    padding: 15px 16px;
    border: 1px solid var(--zs-border);
    border-radius: 16px;
    background: #ffffff;
    cursor: pointer;
    font-weight: 700;
    transition: border-color 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease;
}

.zs-utility-bill-tool .zs-method-card input {
    width: 18px;
    height: 18px;
    accent-color: var(--zs-primary);
    flex: 0 0 auto;
}

.zs-utility-bill-tool .zs-method-card.is-selected {
    border-color: var(--zs-primary);
    background: #eff6ff;
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.zs-utility-bill-tool .zs-unit-rows {
    display: grid;
    gap: 14px;
}

.zs-utility-bill-tool .zs-unit-row {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 14px;
    padding: 14px;
    border: 1px solid var(--zs-border);
    border-radius: 16px;
    background: #ffffff;
}

.zs-utility-bill-tool .zs-unit-row.is-equal-method {
    grid-template-columns: 1fr;
}

.zs-utility-bill-tool .zs-message {
    border: 1px solid var(--zs-error-border);
    border-radius: 14px;
    background: var(--zs-error-bg);
    color: var(--zs-error-text);
    font-weight: 700;
    padding: 12px 14px;
}

.zs-utility-bill-tool .zs-actions,
.zs-utility-bill-tool .zs-result-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
}

.zs-utility-bill-tool .zs-primary-button,
.zs-utility-bill-tool .zs-secondary-button,
.zs-utility-bill-tool .zs-primary-link-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    border-radius: 999px;
    font: inherit;
    font-weight: 800;
    line-height: 1;
    padding: 14px 20px;
    text-decoration: none !important;
    cursor: pointer;
    transition: transform 0.18s ease, background-color 0.18s ease, border-color 0.18s ease;
}

.zs-utility-bill-tool .zs-primary-button,
.zs-utility-bill-tool .zs-primary-link-button {
    border: 1px solid var(--zs-primary);
    background: var(--zs-primary);
    color: #ffffff !important;
}

.zs-utility-bill-tool .zs-primary-button:hover,
.zs-utility-bill-tool .zs-primary-link-button:hover {
    background: var(--zs-primary-dark);
    border-color: var(--zs-primary-dark);
    transform: translateY(-1px);
}

.zs-utility-bill-tool .zs-secondary-button {
    border: 1px solid var(--zs-border);
    background: #ffffff;
    color: var(--zs-text);
}

.zs-utility-bill-tool .zs-secondary-button:hover {
    border-color: var(--zs-primary);
    transform: translateY(-1px);
}

.zs-utility-bill-tool .zs-results {
    margin-top: 22px;
    background: #ffffff;
}

.zs-utility-bill-tool .zs-results-metas {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.zs-utility-bill-tool .zs-results-meta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 12px;
    border: 1px solid var(--zs-border);
    border-radius: 999px;
    background: var(--zs-soft);
    color: var(--zs-muted);
    font-size: 14px;
    font-weight: 700;
}

.zs-utility-bill-tool .zs-results-meta strong {
    color: var(--zs-text);
}

.zs-utility-bill-tool .zs-results-table-wrap {
    width: 100%;
    overflow-x: auto;
    margin-top: 16px;
    border: 1px solid var(--zs-border);
    border-radius: 16px;
}

.zs-utility-bill-tool .zs-results-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 420px;
    background: #ffffff;
}

.zs-utility-bill-tool .zs-results-table th,
.zs-utility-bill-tool .zs-results-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--zs-border);
    text-align: left;
    vertical-align: middle;
}

.zs-utility-bill-tool .zs-results-table th {
    background: var(--zs-soft);
    color: var(--zs-muted);
    font-size: 13px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.zs-utility-bill-tool .zs-results-table tr:last-child td {
    border-bottom: 0;
}

.zs-utility-bill-tool .zs-results-table td:last-child,
.zs-utility-bill-tool .zs-results-table th:last-child {
    text-align: right;
    font-weight: 800;
}

.zs-utility-bill-tool .zs-result-actions {
    margin-top: 18px;
}

.zs-utility-bill-tool .zs-copy-status {
    min-height: 20px;
    margin: 12px 0 0;
    color: var(--zs-muted);
    font-size: 14px;
    font-weight: 700;
}

.zs-utility-bill-tool .screen-reader-text {
    position: absolute !important;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

@media (max-width: 680px) {
    .zs-utility-bill-tool .zs-calculator-card {
        padding: 20px;
        border-radius: 20px;
    }

    .zs-utility-bill-tool .zs-input-grid,
    .zs-utility-bill-tool .zs-method-options,
    .zs-utility-bill-tool .zs-unit-row {
        grid-template-columns: 1fr;
    }

    .zs-utility-bill-tool .zs-primary-button,
    .zs-utility-bill-tool .zs-secondary-button,
    .zs-utility-bill-tool .zs-primary-link-button {
        width: 100%;
    }
}