.tool-page { max-width: calc(var(--tool-max) + 32px); }
.tools-page { padding-bottom: 0; }
.tools-page__intro { max-width: none; }
.tools-page__list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-3); margin: 0; padding: var(--space-2) 0 var(--space-7); list-style: none; }
.tools-page__card { display: flex; min-height: 112px; gap: var(--space-3); padding: var(--space-4); border: 1px solid var(--color-border); border-radius: var(--radius-md); color: var(--color-text); background: var(--color-surface); text-decoration: none; align-items: center; transition: border-color 120ms ease, box-shadow 120ms ease, transform 120ms ease; }
.tools-page__card:hover { border-color: #9aafaa; box-shadow: 0 8px 20px rgb(25 43 39 / 6%); transform: translateY(-1px); }
.tools-page__card:focus-visible { outline: 3px solid rgb(9 108 141 / 28%); outline-offset: 3px; }
.tools-page__icon { display: grid; width: 42px; height: 42px; flex: 0 0 42px; border: 1px solid #b7d7d4; border-radius: var(--radius-sm); color: var(--color-brand); place-items: center; }
.tools-page__icon svg { width: 23px; height: 23px; fill: none; stroke: currentcolor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.7; }
.tools-page__copy { display: grid; min-width: 0; gap: 2px; }
.tools-page__title { font-weight: 700; }
.tools-page__summary { color: var(--color-muted); font-size: var(--font-size-small); line-height: 1.5; }
.tools-page__arrow { margin-left: auto; color: var(--color-brand); font-size: 18px; }
.tools-page__about { max-width: none; padding-top: var(--space-6); border-top: 1px solid var(--color-border); }
.tools-page__about h2 { margin-bottom: var(--space-3); }
.tools-page__about p { max-width: none; margin: 0; color: var(--color-muted); }
.tools-page__about p + p { margin-top: var(--space-3); }
body:has(.tools-page) .site-footer { margin-top: 32px; }
.guide-article { max-width: 840px; padding-bottom: 0; }
.guide-article__header { padding: var(--space-3) 0 var(--space-5); border-bottom: 1px solid var(--color-border); }
.guide-article__header { border-bottom: 0; }
.guide-article__header h1 { margin: 0; }
.guide-article__lead { max-width: 760px; margin: var(--space-3) 0 0; color: var(--color-muted); }
.article-category { margin: 0 0 var(--space-2); color: var(--color-brand); font-size: var(--font-size-small); font-weight: 700; }
.guide-article__cta-note { margin: var(--space-4) 0 0; font-size: var(--font-size-small); }
.guide-article__cta-note a, .guide-article a { color: var(--color-brand-strong); font-weight: 700; text-underline-offset: 3px; }
.guide-toc { margin-top: var(--space-5); padding: var(--space-4); border: 1px solid var(--color-border); border-radius: var(--radius-md); background: #f7faf8; }
.guide-toc > p { margin: 0 0 var(--space-2); font-weight: 700; }
.guide-toc ol { display: grid; gap: 6px; margin: 0; padding-left: 1.35em; }
.guide-toc a { color: var(--color-text); font-size: var(--font-size-small); }
.guide-article > .content-section { padding-block: var(--space-5); border-bottom: 1px solid var(--color-border); }
.guide-article > .guide-article__mistakes, .guide-article > .faq { border-bottom: 0; }
.guide-article > .guide-article__mistakes { padding-bottom: var(--space-3); }
.guide-article__mistakes + .tool-cta { margin-top: var(--space-3); }
.guide-article .formula-box { margin: var(--space-3) 0; padding: var(--space-3) var(--space-4); border-left: 3px solid #9dcfc0; background: #f2faf6; color: var(--color-brand-strong); font-weight: 700; }
.guide-article .formula-box p { margin: 0; }
.guide-article .formula-box p + p { margin-top: 4px; }
.guide-article .formula-item + .formula-item { margin-top: var(--space-4); }
.guide-article h3 { margin: var(--space-4) 0 var(--space-2); font-size: 18px; }
.table-scroll { overflow-x: auto; }
.comparison-table { width: 100%; min-width: 360px; border-collapse: collapse; }
.comparison-table th, .comparison-table td { padding: var(--space-3); border: 1px solid var(--color-border); text-align: left; }
.comparison-table thead th { background: #f2f7f5; }
.comparison-table__note { margin-top: var(--space-4); }
.tool-cta { margin: var(--space-6) 0; padding: var(--space-5); border: 1px solid #b7d7c9; border-radius: var(--radius-md); background: #f1f8f4; }
.tool-cta__heading, .guide-article__summary-heading { margin: 0 0 var(--space-3); color: var(--color-text); font-size: 18px; font-weight: 700; }
.guide-article .button--primary { color: #fff; }
.tool-cta .button { display: inline-flex; margin-top: var(--space-3); align-items: center; }
body:has(.guide-article) .site-footer { margin-top: 32px; }
.tool-page__intro { padding: var(--space-3) 0 var(--space-4); }
.tool-page__intro h1 { margin-bottom: var(--space-2); }
.tool-page__intro p { margin: 0; color: var(--color-muted); white-space: pre-line; }
.tool-card { min-width: 0; overflow: hidden; border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface); box-shadow: var(--shadow-card); }
.tool-card__header { display: flex; justify-content: space-between; align-items: center; gap: var(--space-3); padding: var(--space-4) var(--space-5); }
.tool-card__header > div { min-width: 0; }
.tool-card__header h2 { margin: 0; font-size: 22px; overflow-wrap: anywhere; }
.demo-note { margin: 0; padding: 2px 8px; border: 1px solid #b7d7d4; border-radius: 99px; color: var(--color-brand-strong); background: #edf7f5; font-size: 12px; white-space: nowrap; }
.mode-tabs { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); background: #fbfcfb; }
.mode-tabs button { min-width: 0; min-height: 52px; padding: var(--space-2); border: 0; border-right: 1px solid var(--color-border); background: transparent; color: var(--color-muted); font-size: 14px; font-weight: 700; overflow-wrap: anywhere; }
.mode-tabs button:last-child { border-right: 0; }
.mode-tabs button[aria-selected="true"] { position: relative; color: var(--color-brand-strong); background: var(--color-surface); }
.mode-tabs button[aria-selected="true"]::after { position: absolute; right: 18%; bottom: 0; left: 18%; height: 3px; content: ""; background: var(--color-brand); }
.tool-card__body { padding: var(--space-5); }
.tool-card--primary { --primary-section-gap: 10px; }
.tool-card--primary .tool-card__header { padding-bottom: calc(var(--primary-section-gap) + 2px); }
.tool-card--primary .tool-card__body { padding-top: 0; padding-bottom: 12px; }
.tool-form { display: grid; grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto; grid-template-rows: 20px var(--control-height) auto; column-gap: var(--space-3); row-gap: 6px; }
.input-field { display: grid; grid-row: 1 / 4; grid-template-rows: 20px var(--control-height) auto; row-gap: 6px; min-width: 0; }
.input-field label { align-self: center; margin: 0; font-size: var(--font-size-small); font-weight: 700; }
.input-field input { grid-row: 2; width: 100%; min-width: 0; height: var(--control-height); padding: 0 12px; border: 1px solid var(--color-border); border-radius: var(--radius-sm); color: var(--color-text); background: #fff; }
.input-field input:hover { border-color: #9aafaa; }
.input-field input.is-quick-rate-highlighted { box-shadow: var(--focus-ring); }
.input-field input[aria-invalid="true"] { border-color: var(--color-error); background: #fff8f7; }
.formula-symbol { grid-row: 2; align-self: center; padding: 0; color: var(--color-muted); font-weight: 700; white-space: nowrap; }
.input-hint { margin: var(--space-3) 0 0; color: var(--color-muted); font-size: var(--font-size-small); }
.tool-form--discount { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.input-with-unit { position: relative; display: block; grid-row: 2; }
.input-with-unit input { padding-right: 42px; }
.input-with-unit > span { position: absolute; top: 50%; right: 12px; transform: translateY(-50%); color: var(--color-muted); font-size: var(--font-size-small); font-weight: 700; pointer-events: none; }
.quick-rates { display: flex; flex-wrap: wrap; align-items: flex-start; gap: var(--space-2); margin-top: calc(var(--primary-section-gap, var(--space-3)) - 6px); }
.quick-rates[hidden], .rounding-buttons[hidden] { display: none; }
.quick-rates p { margin: 0; color: var(--color-muted); font-size: var(--font-size-small); font-weight: 700; white-space: nowrap; }
.quick-rates > div { display: flex; min-width: 0; flex: 1 1 0; flex-wrap: wrap; gap: var(--space-2); }
.quick-rates .button { min-width: 0; min-height: 0; padding: 2px 8px; border-color: #b7d7d4; color: var(--color-brand-strong); background: var(--color-surface); font-size: 12px; font-weight: 400; }
.quick-rates .button:hover { border-color: var(--color-brand); color: var(--color-brand); }
.quick-rates .button[aria-pressed="true"] { background: #edf7f5; }
.rounding-buttons { margin-top: var(--primary-section-gap, var(--space-4)); }
.rounding-buttons p { margin: 0 0 var(--space-2); color: var(--color-muted); font-size: var(--font-size-small); font-weight: 700; }
.rounding-buttons p span { font-weight: 400; font-size: 12px; }
.rounding-buttons .button { min-height: 0; padding: 2px 8px; border-color: #b7d7d4; border-radius: var(--radius-sm); color: var(--color-brand-strong); background: var(--color-surface); font-size: 12px; font-weight: 400; }
.rounding-buttons > div { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.rounding-buttons .button:hover { border-color: var(--color-brand); color: var(--color-brand); }
.rounding-buttons .button[aria-pressed="true"] { background: #edf7f5; }
.tool-card--secondary { --secondary-section-gap: 10px; margin-top: var(--space-5); box-shadow: none; }
.tool-card--secondary .tool-card__header { padding-bottom: var(--secondary-section-gap); }
.tool-card--secondary .tool-card__body { padding-top: var(--secondary-section-gap); padding-bottom: 12px; }
.mode-tabs--secondary { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.mode-tabs--profit-margin { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.profit-margin-tab__mobile { display: none; }
.tool-form--profit-margin { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.tool-page--profit-margin .tool-card--primary .tool-card__body { padding-top: var(--space-4); }
.tool-page--profit-margin .tool-page__intro p { max-width: none; }
.tool-page--profit-margin .tool-page__intro h1 { font-size: 34px; }
.tool-page--profit-margin .result-summary { margin: var(--space-1) 0 var(--space-2); gap: 4px; }
.tool-page--profit-margin .result-summary div { padding: 4px 8px; }
.tool-page--profit-margin .result-summary dd { margin-top: 0; line-height: 1.2; }
.tool-page--profit-margin .result-card__actions .button { color: var(--color-muted); }
.tool-page--profit-margin .result-card__actions .button:hover:not(:disabled) { color: var(--color-brand-strong); }
.tool-page--profit-margin .result-card__actions .button[data-copy-state="success"] { color: var(--color-brand-strong); }
.tool-page--profit-margin > .formula-block--fixed { padding-top: 8px; padding-bottom: 0; }
.tool-page--profit-margin .formula-block--fixed > h2 { margin-bottom: 0; padding-bottom: 8px; }
.tool-page--profit-margin .formula-block--fixed > .formula-item:first-of-type { padding-top: 16px; }
.tool-page--profit-margin .formula-block--fixed > .formula-item:last-child { padding-bottom: 8px; }
.tool-page--profit-margin > .notice--calculation { margin: 0 0 32px; }
.tool-page--profit-margin > .notice--calculation h2 { font-size: 20px; }
.tool-page--profit-margin > .notice--calculation + #guides.related-section { border-top: 0; }
.tool-page--profit-margin > #tools.related-section { padding: 0; }
.tool-page--profit-margin > .faq.content-section { margin-bottom: 32px; padding: 0; }
.tool-page--profit-margin > .update-info { padding-top: 0; }
body:has(.tool-page--profit-margin) .site-footer { margin-top: 32px; }
.result-card__note { margin: var(--space-2) 0 0; color: var(--color-muted); font-size: var(--font-size-small); }
.result-card__note:empty { display: none; }
.result-card__label:empty { display: none; }
.mode-tabs--tax { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.mode-tabs--tax button:nth-child(-n + 2) { border-bottom: 0; }
.tax-input-settings { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(280px, 1fr); gap: 24px; align-items: start; margin-top: 20px; }
.tool-form--tax { display: block; }
.tool-form--tax .input-field { display: block; grid-row: auto; }
.tool-form--tax .input-field label { display: block; height: 20px; margin-bottom: 6px; }
.tool-form--tax .input-with-unit { display: block; }
.tool-form--tax .input-with-unit input { width: 100%; min-width: 0; height: 54px; padding-right: 120px; }
.tool-form--tax .input-field:focus-within input { border-color: var(--color-brand); box-shadow: var(--focus-ring); }
.tool-form--tax .input-field:focus-within input[aria-invalid="true"], .tool-form--tax .input-field input[aria-invalid="true"] { border-color: var(--color-error); background: #fff8f7; box-shadow: 0 0 0 3px rgb(182 68 64 / 18%); }
.tool-form--tax .input-field input.is-invalid { border-color: var(--color-error) !important; background: #fff8f7 !important; box-shadow: 0 0 0 3px rgb(182 68 64 / 18%) !important; }
.tax-input-feedback { margin: 6px 0 0; color: var(--color-error); font-size: var(--font-size-small); line-height: 1.4; }
.tax-input-feedback[hidden] { display: none; }
.tax-unit-buttons { position: absolute; top: 50%; right: 6px; display: flex; gap: 4px; transform: translateY(-50%); }
.tax-unit-buttons .button { width: 48px; min-height: 42px; padding: 0; border-color: #b7d7d4; border-radius: var(--radius-sm); color: var(--color-brand-strong); background: var(--color-surface); font-size: 12px; }
.tax-unit-buttons .button[aria-pressed="true"] { background: #edf7f5; }
.rounding-buttons--tax { margin-top: 0; padding: 0; border: 0; }
.rounding-buttons--tax legend { margin-bottom: 6px; color: var(--color-text); font-size: var(--font-size-small); font-weight: 700; }
.rounding-buttons--tax > div { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.rounding-buttons--tax .button { min-height: 30px; margin-left: 0; padding: 2px 8px; border-radius: var(--radius-sm); }
.rounding-buttons--tax .rounding-buttons__note { margin: 6px 0 0; line-height: 18px; color: var(--color-muted); font-size: 12px; font-weight: 400; }
.tax-results { margin: 8px var(--space-5) var(--space-5); padding: 0 0 var(--space-4); border: 1px solid #dce9e7; border-radius: var(--radius-md); background: #f6fbfa; }
.tax-results__heading, .tax-results__message { margin: 0; padding-inline: var(--space-4); color: var(--color-muted); font-size: var(--font-size-small); }
.tax-results__heading { padding-top: var(--space-4); margin-bottom: var(--space-1); font-weight: 700; }
.tax-results__rows { margin-top: var(--space-3); border-top: 1px solid var(--color-border); }
.tax-results__table { width: 100%; border-collapse: collapse; table-layout: fixed; font-size: var(--font-size-small); }
.tax-results__table th, .tax-results__table td { padding: 14px 8px; border-bottom: 1px solid #dce9e7; text-align: right; }
.tax-results__table tr > :first-child { padding-left: var(--space-4); }
.tax-results__table tr > :last-child { padding-right: var(--space-4); }
.tax-results__table thead { background: #fbfcfb; }
.tax-results__table tbody { background: #f6fbfa; }
.tax-results__table thead th { color: #426c68; font-size: 14px; font-weight: 700; }
.tax-results__table th:first-child { width: 35%; text-align: left; }
.tax-results__table thead th:nth-child(2) { width: 25%; }
.tax-results__table thead th:nth-child(3) { width: 40%; }
.tax-results__table tbody th { display: table-cell; white-space: nowrap; color: var(--color-text); font-weight: 400; }
.tax-rate-badge { display: inline-flex; min-width: 60px; min-height: 38px; padding: 0 8px; border-radius: 999px; color: #08736e; background: #e7f5f3; vertical-align: middle; align-items: center; justify-content: center; font-size: 16px; font-weight: 400; }
.tax-rate-name { display: inline; margin-left: 8px; vertical-align: middle; font-weight: 400; }
.tax-results__table td { color: var(--color-text); font-size: 17px; font-weight: 500; overflow-wrap: anywhere; }
.tax-rate-row [data-tax-result-amount] { color: color-mix(in srgb, var(--color-brand-strong) 82%, white); }
.tax-rate-row td:last-child { color: color-mix(in srgb, var(--color-brand-strong) 82%, white); font-size: clamp(26px, 3.2vw, 34px); line-height: 1; font-weight: 600; white-space: nowrap; }
.tax-rate-row td:last-child { white-space: normal; }
.tax-result-number { display: inline-block; max-inline-size: 14ch; overflow-wrap: anywhere; vertical-align: bottom; }
[data-tax-state="valid"] [data-tax-result-amount]::after, [data-tax-state="valid"] [data-tax-inclusive]::after { content: "円"; margin-left: 2px; color: var(--color-muted); font-size: 0.7em; font-weight: 400; }
.tax-results__actions { display: flex; justify-content: flex-end; gap: var(--space-2); margin: var(--space-4) var(--space-4) 0; padding-top: 0; border-top: 0; }
.tax-results__actions .button { display: inline-flex; width: 176px; min-height: 46px; flex: 0 0 176px; padding: 0 18px; color: #5e7471; align-items: center; justify-content: center; gap: 8px; }
.tax-results__actions .button:hover:not(:disabled) { color: var(--color-brand-strong); border-color: var(--color-brand); background: var(--color-surface); }
.tax-results__actions .button[data-copy-state="success"] { color: var(--color-brand-strong); border-color: #b7d7d4; background: var(--color-surface); }
.tax-results__action-icon { width: 20px; height: 20px; fill: none; stroke: currentcolor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 2; }
[data-tax-state="incomplete"] .tax-results__rows, [data-tax-state="incomplete"] .tax-results__actions { display: none; }
.tool-card--secondary .quick-rates { margin-top: 4px; }
.tool-card--secondary .rounding-buttons { margin-top: 4px; }
.tool-card--secondary .secondary-quick-rates:not([hidden]) + .secondary-rounding-buttons { margin-top: var(--secondary-section-gap); }
.formula-block.formula-block--fixed { margin-top: 0; padding: 0; border: 0; border-radius: 0; box-shadow: none; background: transparent; }
.tool-page > .formula-block--fixed { padding-bottom: 33px; }
.formula-block--fixed > h2 { padding-bottom: var(--space-3); border-bottom: 1px solid var(--color-border); }
.formula-block--fixed .formula-item { padding: 20px 0; border-bottom: 1px solid var(--color-border); }
.formula-block--fixed .formula-item:last-child { border-bottom: 0; }
.formula-block--fixed .formula-item h3 { margin-bottom: var(--space-2); }
.formula-block--fixed .formula-item p { margin-bottom: var(--space-2); color: var(--color-muted); }
.formula-block--fixed .formula-item p:first-of-type { padding: 12px 14px; border-radius: 6px; background: #f0f5f3; color: var(--color-brand-strong); font-weight: 700; }
.formula-block--fixed .formula-item p:last-child { margin-bottom: 0; color: var(--color-muted); font-size: var(--font-size-small); }
.calculation-settings { margin-top: var(--space-5); border-top: 1px solid var(--color-border); color: var(--color-text); }
.calculation-settings summary { padding-top: var(--space-4); cursor: pointer; font-weight: 700; }
.calculation-settings__body { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--space-2) var(--space-3); align-items: center; padding-top: var(--space-3); }
.calculation-settings select { width: 100%; height: var(--control-height); padding: 0 12px; border: 1px solid var(--color-border); border-radius: var(--radius-sm); color: var(--color-text); background: var(--color-surface); }
.calculation-settings__body p { grid-column: 1 / -1; margin: 0; color: var(--color-muted); font-size: var(--font-size-small); }
.field-error { grid-row: 3; margin: 0; padding-top: var(--space-2); color: var(--color-error); font-size: var(--font-size-small); line-height: 1.4; overflow-wrap: anywhere; }
.result-card { display: flex; flex-direction: column; min-height: 216px; margin: 0 var(--space-5) var(--space-5); padding: var(--space-4); border-left: 4px solid var(--color-success); border-radius: var(--radius-md); background: #f1f8f5; transition: padding 160ms ease; }
.result-card__label, .result-card__detail { min-height: 0; color: var(--color-muted); margin-bottom: 4px; font-size: var(--font-size-small); }
.result-card__heading { margin: 0 0 var(--space-1); color: var(--color-muted); font-size: var(--font-size-small); font-weight: 700; }
.result-card__detail--multiline { white-space: pre-line; }
.result-card__detail[hidden] { display: none; }
.result-summary { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-2); margin: var(--space-2) 0 var(--space-3); }
.result-summary div { min-width: 0; padding: var(--space-2); border-radius: var(--radius-sm); background: rgb(255 255 255 / 64%); }
.result-summary dt { color: var(--color-muted); font-size: 12px; }
.result-summary dd { min-width: 0; margin: 2px 0 0; color: var(--color-text); font-size: var(--font-size-small); font-weight: 700; overflow-wrap: anywhere; }
.result-card__label { min-height: 0; }
.result-card__value { display: flex; min-height: 0; margin: 0 0 4px; color: color-mix(in srgb, var(--color-brand-strong) 82%, white); font-size: clamp(38px, 7vw, 52px); line-height: 1.15; font-weight: 800; align-items: center; justify-content: space-between; gap: var(--space-3); }
.result-card__number { min-width: 0; white-space: nowrap; }
.result-card__copy-icon { display: inline-flex; width: 32px; height: 32px; flex: 0 0 32px; margin: 0; padding: 0; border: 1px solid color-mix(in srgb, var(--color-border) 70%, white); border-radius: var(--radius-sm); color: color-mix(in srgb, var(--color-brand) 72%, white); background: #fff; cursor: pointer; align-items: center; justify-content: center; font-size: 18px; line-height: 1; }
.result-card__copy-icon:hover:not(:disabled) { color: var(--color-brand-strong); background: #edf7f5; }
.result-card__copy-icon:focus-visible { outline: 3px solid rgb(9 108 141 / 28%); outline-offset: 3px; }
.result-card__copy-icon:disabled { cursor: default; opacity: 0; }
.result-card__copy-icon[data-copy-state="error"] { color: var(--color-error); }
.result-card__copy-icon svg { width: 18px; height: 18px; fill: none; stroke: currentcolor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.8; }
.result-card[data-state="hint"] .result-card__value, .result-card[data-state="error"] .result-card__value { color: var(--color-muted); font-size: 30px; }
.result-card[data-state="incomplete"], .result-card[data-state="error"] { display: block; min-height: 0; margin: 0 var(--space-5) var(--space-4); padding: var(--space-4); border-left: 4px solid var(--color-success); border-radius: var(--radius-md); background: #f1f8f5; }
.result-card[data-state="incomplete"] .result-card__label, .result-card[data-state="error"] .result-card__label { min-height: 0; margin: 0; color: var(--color-muted); }
.result-card__unit { margin-left: 4px; font-size: 24px; }
.result-card__actions { display: flex; flex-wrap: nowrap; gap: var(--space-2); min-height: 40px; margin-top: var(--space-2); }
.result-card .button { flex: 1 1 0; min-width: 0; min-height: 40px; font-size: var(--font-size-small); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.result-card[data-state="incomplete"] .result-card__value, .result-card[data-state="incomplete"] .result-card__detail, .result-card[data-state="error"] .result-card__value, .result-card[data-state="error"] .result-card__detail { display: none; }
.result-card[data-state="incomplete"] .result-summary, .result-card[data-state="error"] .result-summary { display: none; }
.result-card[data-state="incomplete"] .result-card__actions, .result-card[data-state="error"] .result-card__actions { display: none; }
.result-card[data-state="incomplete"] [data-copy-button], .result-card[data-state="error"] [data-copy-button] { display: none; }
.other-calculations { margin: 0 var(--space-5) var(--space-5); padding-top: var(--space-5); border-top: 1px solid var(--color-border); }
.other-calculations h3 { margin-bottom: var(--space-3); }
.other-calculations__buttons { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-2); }
.other-calculations__buttons .button { min-width: 0; padding-inline: var(--space-2); }
.other-calculations__buttons .button[aria-pressed="true"] { border-color: var(--color-brand); color: var(--color-brand-strong); background: #edf7f5; }
.formula-block { margin-top: var(--space-6); padding: var(--space-5) var(--space-6); border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface); }
.formula-block__formula { padding: var(--space-3) var(--space-4); border-radius: var(--radius-sm); background: #f0f5f3; color: var(--color-brand-strong); font-weight: 700; }
.formula-block [data-mode-formula-example] { margin-bottom: 0; }
.content-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-7); }
.steps-list { margin: 0; padding-left: 1.25em; }
.steps-list li { margin-bottom: var(--space-2); }
.usage-note { margin: var(--space-3) 0 0; color: var(--color-muted); }
.definition-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-2); margin: var(--space-4) 0 0; }
.definition-list div { min-width: 0; padding: var(--space-3); border: 1px solid var(--color-border); border-radius: var(--radius-sm); background: #fbfcfb; }
.definition-list dt { color: var(--color-text); font-size: var(--font-size-small); font-weight: 700; }
.definition-list dd { margin: var(--space-1) 0 0; color: var(--color-muted); font-size: var(--font-size-small); overflow-wrap: anywhere; }
.notice { margin: var(--space-3) 0; }
.notice--calculation { padding: var(--space-5); border: 1px solid var(--color-border); border-radius: var(--radius-md); background: #f3f7f5; }
.notice--calculation.notice--discount { margin: var(--space-6) 0; }
.tool-page > .notice--calculation.notice--discount { margin: 0 0 33px; }
.tool-page > .notice--calculation.notice--discount + .related-section { border-top: 0; }
.notice--calculation h2 { margin-bottom: var(--space-4); font-size: 18px; color: var(--color-text); }
.notice--calculation.notice--discount h2 { font-size: clamp(21px, 3vw, 28px); line-height: 1.4; }
.notice__item + .notice__item { margin-top: var(--space-4); padding-top: var(--space-4); }
.notice__item h3 { margin-bottom: var(--space-2); font-size: 16px; }
.notice__item p { margin: 0; color: var(--color-muted); }
.related-section { border-top: 1px solid var(--color-border); }
#tools.related-section { border-top: 0; }
.tool-page > #tools.related-section { padding-top: 0; padding-bottom: 33px; }
.related-list { padding: 0; margin: 0; list-style: none; }
.related-list li { border-top: 1px solid var(--color-border); }
.related-list a { display: flex; justify-content: space-between; gap: var(--space-3); padding: 11px 0; color: var(--color-text); text-decoration: none; }
.related-list a::after { content: "→"; color: var(--color-brand); }
.faq details { border-bottom: 1px solid var(--color-border); }
.faq summary { padding: var(--space-4) 0; cursor: pointer; font-weight: 700; }
.faq details p { padding-bottom: var(--space-3); color: var(--color-muted); }
.update-info { padding-top: var(--space-4); color: var(--color-muted); font-size: var(--font-size-small); }
.update-info--discount { padding-top: var(--space-6); }
.tool-page > .faq { padding-top: 0; padding-bottom: 33px; }
.tool-page > .update-info--discount { padding-top: 0; }
body:has(.update-info--discount) .site-footer { margin-top: 33px; }
.update-info p { margin: 0; }
.update-info p + p { margin-top: var(--space-2); }
.static-page { padding-bottom: 0; }
.static-page__intro { max-width: none; padding: var(--space-6) 0 32px; }
.static-page__intro h1 { margin: 0; font-size: clamp(30px, 4vw, 34px); line-height: 1.3; }
.static-page__intro p { max-width: 720px; margin: var(--space-3) 0 0; color: var(--color-muted); }
.static-page .content-section { max-width: none; padding: 0; }
.static-page > .content-section + .content-section { margin-top: 32px; }
.static-page > .content-section + .update-info { margin-top: 32px; padding-top: 0; }
.static-page__contact-button { display: inline-flex; min-height: var(--control-height); padding-inline: 24px; align-items: center; justify-content: center; }
body:has(.static-page) .site-footer { margin-top: 32px; }
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.info-table { width: 100%; min-width: 560px; border-collapse: collapse; }
.info-table th, .info-table td { padding: var(--space-3) var(--space-4); border: 1px solid var(--color-border); text-align: left; vertical-align: top; }
.info-table th { width: 30%; background: #f3f7f5; font-weight: 700; }
.tool-page--tax > .content-section { padding: 32px 0 0; }
.tool-page--unit-price .mode-tabs--unit-price { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.tool-page--unit-price > .notice--calculation h2 { font-size: clamp(21px, 3vw, 28px); line-height: 1.4; }
.tool-page--unit-price > .notice--calculation + #guides.related-section { border-top: 0; }
.tool-page--section-rhythm > .formula-block--fixed { padding-bottom: 0; }
.tool-page--section-rhythm > .notice--calculation { margin-bottom: 32px; }
.tool-page--section-rhythm > .faq { padding-bottom: 32px; }
.tool-page--section-rhythm > .update-info { padding-top: 0; }
body:has(.tool-page--section-rhythm) .site-footer { margin-top: 32px; }
.tool-page--percentage > .formula-block--fixed { padding-bottom: 0; }
.tool-page--percentage > .formula-block--fixed + .notice--calculation { margin-top: 32px; }
.tool-page--percentage > .notice--calculation + .related-section { border-top: 0; }
body:has(.tool-page--percentage) .site-footer { margin-top: 40px; }
.tool-page--unit-price .tool-card--primary .tool-card__body { padding-top: var(--space-4); }
.tool-page--split-bill .tool-card--primary .tool-card__header { padding-bottom: var(--space-4); border-bottom: 1px solid var(--color-border); }
.tool-page--split-bill .tool-card--primary .tool-card__body { padding-top: var(--space-4); }
.tool-page--split-bill .tool-form { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.tool-page--split-bill .result-summary { display: grid; grid-template-columns: 1fr; margin: var(--space-2) 0; gap: 6px; }
.tool-page--split-bill .result-summary div { display: flex; align-items: baseline; gap: 8px; min-height: 42px; padding: 7px 10px; border: 1px solid #dce9e7; border-radius: var(--radius-sm); background: #fff; }
.tool-page--split-bill .result-summary dt { display: flex; align-items: baseline; gap: 2px; color: color-mix(in srgb, var(--color-brand-strong) 82%, white); font-weight: 800; line-height: 1.15; }
.tool-page--split-bill .split-bill-amount { font-size: 32px; }
.tool-page--split-bill .split-bill-amount-unit, .tool-page--split-bill .result-summary dd { margin: 0; color: color-mix(in srgb, var(--color-brand-strong) 82%, white); font-size: 16px; font-weight: 700; }
.tool-page--split-bill .result-summary dd::before { content: "× "; }
.tool-page--split-bill .result-card__label { color: var(--color-muted); font-weight: 700; }
.tool-page--split-bill .result-card[data-state="incomplete"] .result-card__label { font-weight: 400; }
.tool-page--split-bill .result-card__actions .button { color: var(--color-muted); }
.tool-page--split-bill .result-card__actions .button:hover:not(:disabled) { color: var(--color-brand); }
.tool-page--split-bill > .notice--calculation h2 { font-size: clamp(21px, 3vw, 28px); line-height: 1.4; }
.tool-page--split-bill > .notice--calculation + .related-section { border-top: 0; }
.tool-page--unit-price .tool-card__body > .input-hint { margin: var(--space-3) 0 0; color: var(--color-muted); font-size: var(--font-size-small); }
.tool-page--unit-price .tool-form--unit-price { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.tool-page--unit-price .result-summary { margin: var(--space-1) 0 var(--space-2); gap: 4px; }
.tool-page--unit-price .result-summary div { padding: 4px 8px; }
.tool-page--unit-price .result-summary dd { margin-top: 0; line-height: 1.2; }
.tool-form--unit-price .input-with-unit { display: flex; gap: 6px; align-items: center; }
.tool-form--unit-price .input-with-unit input { min-width: 0; flex: 1; }
.tool-form--unit-price .input-with-unit:has([data-unit-price-unit]) { gap: 0; overflow: hidden; border: 1px solid var(--color-border); border-radius: var(--radius-sm); background: var(--color-surface); }
.tool-form--unit-price .input-with-unit:has([data-unit-price-unit]):focus-within { border-color: var(--color-success); box-shadow: 0 0 0 3px rgb(23 111 84 / 18%); }
.tool-form--unit-price .input-with-unit:has([data-unit-price-unit]) input { height: var(--control-height); border: 0; border-radius: 0; box-shadow: none; }
.tool-form--unit-price [data-unit-price-unit] { width: 72px; height: var(--control-height); flex: 0 0 72px; appearance: none; border: 0; border-left: 1px solid color-mix(in srgb, var(--color-border) 80%, white); border-radius: 0; background-color: #f7faf8; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='m3 4 3 3 3-3' fill='none' stroke='%236b807a' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5'/%3E%3C/svg%3E"); background-position: right 8px center; background-repeat: no-repeat; background-size: 12px; color: var(--color-muted); padding: 0 24px 0 10px; box-shadow: none; }
.tool-form--unit-price [data-unit-price-unit]:focus-visible { outline: 0; }
.tool-form--unit-price .unit-picker { position: relative; width: 72px; height: var(--control-height); flex: 0 0 72px; border-left: 1px solid color-mix(in srgb, var(--color-border) 80%, white); background: #f7faf8; }
.tool-form--unit-price .unit-picker__button { display: flex; width: 100%; height: 100%; padding: 0 8px 0 10px; border: 0; border-radius: 0; color: var(--color-muted); background: transparent; font: inherit; cursor: pointer; align-items: center; justify-content: space-between; }
.tool-form--unit-price .unit-picker__button svg { width: 12px; height: 12px; fill: none; stroke: currentcolor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.5; }
.tool-form--unit-price .unit-picker__button[aria-expanded="true"] { color: var(--color-success); background: #edf7f2; }
.unit-picker__menu { position: fixed; z-index: 20; max-height: calc(100vh - 32px); overflow-y: auto; padding: 14px; border: 1px solid color-mix(in srgb, var(--color-border) 85%, white); border-radius: var(--radius-md); background: var(--color-surface); box-shadow: var(--shadow-card); }
.unit-picker__group + .unit-picker__group { margin-top: 12px; }
.unit-picker__group > p { margin: 0 0 6px; color: var(--color-muted); font-size: 12px; font-weight: 700; }
.unit-picker__group > div { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 6px; }
.unit-picker__option { min-width: 0; min-height: 34px; padding: 4px 6px; border: 1px solid color-mix(in srgb, var(--color-border) 80%, white); border-radius: var(--radius-sm); color: var(--color-muted); background: #fbfcfb; font: inherit; font-size: 13px; cursor: pointer; }
.unit-picker__option[aria-pressed="true"] { border-color: #b7d7c9; color: var(--color-success); background: #edf7f2; font-weight: 700; }
.unit-picker__option span { margin-left: 3px; }
.unit-picker__option:focus-visible { outline: 0; border-color: var(--color-success); box-shadow: 0 0 0 3px rgb(23 111 84 / 18%); }
@media (min-width: 391px) and (max-width: 700px) { .tool-page--unit-price .tool-form--unit-price { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.tool-page--tax .tool-page__intro p { max-width: none; }
.tool-page--tax .tool-page__intro h1 { font-size: 34px; }
.tool-page--tax > #tools.related-section { padding: 32px 0 0; }
.tool-page--tax > .faq { padding: 32px 0 0; }
.tool-page--tax > .tool-page__meta { padding-top: 32px; }
.tool-page--tax > .notice { margin: 0; }
.tool-page--tax > .content-section > :last-child { margin-bottom: 0; }
.tool-page--tax .faq details:last-child p { margin-bottom: 0; }
body:has(.tool-page--tax) .site-footer { margin-top: 32px; }
.tool-page--tax .formula-block--tax { margin-top: var(--space-4); padding: 0; border: 0; border-radius: 0; background: transparent; }
.tool-page--tax .formula-block--tax h3 { margin: 0; padding: 20px 0 8px; border-top: 0; font-size: 16px; }
.tool-page--tax .formula-block--tax h3:first-child { padding-top: 0; }
.tool-page--tax .formula-block--tax p { margin: 0; color: var(--color-muted); }
.tool-page--tax .formula-block--tax h3 + p, .tool-page--tax .formula-block--tax h3 + p + p { padding-left: 12px; border-left: 3px solid #b7d7d4; color: var(--color-brand-strong); font-weight: 700; }
.tool-page--tax .formula-block--tax h3 + p + p + p { margin-top: var(--space-2); font-size: var(--font-size-small); }
@media (min-width: 701px) { .rounding-buttons--tax > div { transform: translateY(-4px); } .rounding-buttons--tax .rounding-buttons__note { margin-top: 2px; } }
@media (max-width: 700px) { .tool-card__header, .tool-card__body { padding: var(--space-4); } .tool-card--primary .tool-card__body { padding-top: 0; padding-bottom: 12px; } .tool-card--secondary .tool-card__header { padding-bottom: var(--secondary-section-gap); } .tool-card--secondary .tool-card__body { padding-top: var(--secondary-section-gap); padding-bottom: 12px; } .mode-tabs { grid-template-columns: repeat(2, minmax(0, 1fr)); } .mode-tabs button:nth-child(2n) { border-right: 0; } .mode-tabs button:nth-child(-n + 2) { border-bottom: 1px solid var(--color-border); } .mode-tabs--secondary { grid-template-columns: repeat(3, minmax(0, 1fr)); } .mode-tabs--secondary button:nth-child(2n) { border-right: 1px solid var(--color-border); } .mode-tabs--secondary button:nth-child(-n + 2) { border-bottom: 0; } .mode-tabs--secondary button:last-child { border-right: 0; } .result-card { min-height: 216px; margin: 0 var(--space-4) var(--space-4); } .tool-form { grid-template-columns: 1fr 1fr; gap: var(--space-3); } .tool-card--primary .tool-form--discount, .tool-card--secondary .tool-form--discount { row-gap: 6px; } .formula-symbol { display: none; } .content-grid { grid-template-columns: 1fr; gap: 0; } .formula-block { padding: var(--space-3) var(--space-4); } .notice--calculation { padding: var(--space-4); } .calculation-settings__body { grid-template-columns: 1fr; } .other-calculations { margin: 0 var(--space-4) var(--space-4); } .other-calculations__buttons { grid-template-columns: 1fr; } .definition-list { grid-template-columns: 1fr; } }
@media (max-width: 700px) { .tools-page__list { grid-template-columns: 1fr; gap: var(--space-2); padding-bottom: var(--space-6); } .tools-page__card { min-height: 94px; padding: var(--space-3); } .tools-page__icon { width: 38px; height: 38px; flex-basis: 38px; } }
@media (max-width: 700px) { .tax-input-settings { grid-template-columns: 1fr; gap: 16px; } }
@media (max-width: 700px) { .tool-form--tax { grid-template-columns: 1fr; } }
@media (max-width: 700px) { .tool-page--tax .tool-page__intro h1 { font-size: 30px; } }
@media (max-width: 700px) { .tax-results { margin: 8px var(--space-4) var(--space-4); padding: 0 0 var(--space-4); border: 1px solid #dce9e7; border-radius: var(--radius-md); background: #f6fbfa; } .tax-results__table { width: 100%; font-size: 12px; } .tax-results__table th, .tax-results__table td { padding: 9px 4px; } .tax-results__table thead th { font-size: 12px; } .tax-results__table th:first-child { width: 25%; } .tax-results__table thead th:nth-child(2) { width: 28%; } .tax-results__table thead th:nth-child(3) { width: 47%; } .tax-results__table tbody th { gap: 3px; font-size: 11px; } .tax-rate-name { display: none; } .tax-rate-badge { min-width: 42px; min-height: 32px; padding: 0 4px; font-size: 15px; } .tax-rate-row td:last-child { font-size: clamp(15px, 5vw, 20px); } }
@media (max-width: 700px) { .tax-results__table tr > :first-child { padding-left: 8px; } .tax-results__table tr > :last-child { padding-right: 8px; } .tax-rate-name { display: inline; margin-left: 3px; font-size: 10px; font-weight: 400; } .tax-rate-badge { min-width: 38px; min-height: 30px; font-size: 13px; } .tax-results__actions .button { min-width: 0; flex: 1 1 0; padding-inline: 8px; } }
@media (max-width: 390px) { .mode-tabs button { font-size: 12px; } .tool-card__header h2 { font-size: 20px; } }
@media (max-width: 700px) { .tool-page--profit-margin .tool-card--primary .tool-card__body { padding-top: var(--space-4); } }
@media (max-width: 700px) { .static-page__intro { padding-top: var(--space-5); } .table-scroll { overflow: visible; } .info-table, .info-table tbody, .info-table tr, .info-table th, .info-table td { display: block; width: 100%; min-width: 0; } .info-table { font-size: var(--font-size-small); } .info-table tr { border: 1px solid var(--color-border); } .info-table tr + tr { margin-top: var(--space-2); } .info-table th, .info-table td { border: 0; } .info-table th { padding-bottom: var(--space-2); } .info-table td { padding-top: 0; overflow-wrap: anywhere; } }
@media (max-width: 700px) { .tool-page--profit-margin .tool-page__intro h1 { font-size: 30px; } }
@media (max-width: 700px) { .static-page .table-scroll { overflow-x: hidden; } .static-page .info-table { display: table; width: 100%; min-width: 0; table-layout: fixed; } .static-page .info-table tbody { display: table-row-group; } .static-page .info-table tr { display: table-row; border: 0; } .static-page .info-table th, .static-page .info-table td { display: table-cell; width: auto; min-width: 0; border: 1px solid var(--color-border); } .static-page .info-table th { width: 34%; padding: var(--space-2); white-space: nowrap; } .static-page .info-table td { padding: var(--space-2); overflow-wrap: anywhere; word-break: break-word; } }
@media (max-width: 700px) { .tool-page--profit-margin .formula-block--fixed > .formula-item:last-child { padding-bottom: 16px; } }
@media (max-width: 700px) { .tool-page--profit-margin .input-hint { margin-top: 4px; } }
@media (max-width: 700px) { .mode-tabs--profit-margin { grid-template-columns: repeat(3, minmax(0, 1fr)); } .mode-tabs--profit-margin button { min-width: 0; padding-inline: 4px; white-space: nowrap; } .mode-tabs--profit-margin button:nth-child(2) { border-right: 1px solid var(--color-border); } .mode-tabs--profit-margin button:nth-child(-n + 3) { border-bottom: 0; } .profit-margin-tab__desktop { display: none; } .profit-margin-tab__mobile { display: inline; } }
@media (max-width: 640px) { .guide-grid { grid-template-columns: 1fr; } .guide-category-nav { overflow-x: auto; } .guide-category-nav a { white-space: nowrap; } }

.contact-page { padding-bottom: 0; }
.contact-page__header { padding: var(--space-6) 0 32px; }
.contact-page__header h1 { margin: 0; font-size: clamp(30px, 4vw, 34px); line-height: 1.3; }
.contact-page__lead { max-width: 720px; margin: var(--space-3) 0 0; color: var(--color-muted); }
.contact-section { padding: 0; }
.contact-section + .contact-section { margin-top: 32px; }
.contact-section h2 { margin-top: 0; }
.contact-email-box { display: flex; width: min(100%, 440px); flex-direction: column; align-items: flex-start; gap: var(--space-2); margin-top: var(--space-4); padding: var(--space-4); border: 1px solid var(--color-border); border-radius: var(--radius-md); background: #f1f8f4; }
.contact-email-box__label { margin: 0; color: var(--color-muted); font-size: var(--font-size-small); font-weight: 700; }
.contact-email-box__address { margin: 0; font-weight: 700; overflow-wrap: anywhere; }
.contact-email-box__address a { color: var(--color-text); font-size: 20px; }
.contact-email-box .button { display: inline-flex; align-items: center; justify-content: center; margin-top: var(--space-2); line-height: 1; }
.contact-email-box .button[aria-disabled="true"] { pointer-events: none; }
.contact-checklist, .contact-notes { margin-bottom: 0; padding-left: 1.4em; }
.contact-checklist li + li, .contact-notes li + li { margin-top: var(--space-2); }
.contact-email-noscript { margin: var(--space-3) 0 0; color: var(--color-muted); font-size: var(--font-size-small); }
body:has(.contact-page) .site-footer { margin-top: 40px; }
@media (max-width: 700px) { .contact-page__header { padding-top: var(--space-5); } .contact-email-box { padding: var(--space-3); } }

.error-page { max-width: 760px; padding-block: clamp(56px, 10vw, 104px); text-align: center; }
.error-page__code { margin: 0; color: var(--color-brand); font-size: clamp(56px, 14vw, 104px); font-weight: 800; line-height: 1; letter-spacing: -.06em; }
.error-page h1 { margin: var(--space-4) 0 0; }
.error-page__lead { max-width: 620px; margin: var(--space-3) auto 0; color: var(--color-muted); }
.error-page__actions { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-3); margin-top: var(--space-5); }
.error-page__actions .button { display: inline-flex; align-items: center; justify-content: center; }
.error-page__actions .button--secondary { text-decoration: none; }
.error-page__links { margin-top: clamp(48px, 8vw, 72px); padding-top: var(--space-5); border-top: 1px solid var(--color-border); text-align: left; }
.error-page__links h2 { margin: 0; }
.error-page__grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-3); margin-top: var(--space-4); }
.error-link-card { display: grid; min-width: 0; gap: var(--space-1); padding: var(--space-4); border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface); color: var(--color-text); text-decoration: none; transition: border-color 120ms ease, box-shadow 120ms ease, transform 120ms ease; }
.error-link-card:hover { border-color: #9dc3b5; box-shadow: var(--shadow-card); transform: translateY(-2px); }
.error-link-card__title { font-weight: 700; }
.error-link-card__description { color: var(--color-muted); font-size: var(--font-size-small); line-height: 1.6; }
body:has(.error-page) .site-footer { margin-top: 0; }
@media (max-width: 640px) { .error-page { padding-block: var(--space-7); } .error-page__actions { flex-wrap: nowrap; gap: var(--space-2); } .error-page__actions .button { min-width: 0; flex: 1 1 0; padding-inline: 10px; white-space: nowrap; } .error-page__grid { grid-template-columns: 1fr; } }