:root {
  --ria-tool-bg: #fffaf2;
  --ria-tool-surface: #ffffff;
  --ria-tool-border: #f3c98b;
  --ria-tool-accent: #e65100;
  --ria-tool-accent-text: #c44400;
  --ria-tool-accent-strong: #ff9800;
  --ria-tool-accent-soft: #fff0dc;
  --ria-tool-button-start: #c44400;
  --ria-tool-button-end: #9c3600;
  --ria-tool-blue: #1565c0;
  --ria-tool-text: #33230f;
  --ria-tool-muted: #574c40;
  --ria-tool-danger: #b3261e;
  --ria-tool-shadow: 0 18px 40px rgba(122, 76, 24, 0.1);
  --ria-tool-font: 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', Meiryo, sans-serif;
}

.ria-tool {
  background: linear-gradient(180deg, #fffdf8 0%, var(--ria-tool-bg) 100%);
  border: 2px solid var(--ria-tool-border);
  border-radius: 10px;
  box-shadow: var(--ria-tool-shadow);
  color: var(--ria-tool-text);
  font-family: var(--ria-tool-font);
  font-size: 16px;
  margin: 28px 0;
  overflow: hidden;
}

.ria-tool *,
.ria-tool *::before,
.ria-tool *::after {
  box-sizing: border-box;
}

.ria-tool-inner {
  padding: 26px 18px 22px;
}

.ria-tool-kicker {
  align-items: center;
  color: var(--ria-tool-accent-text);
  display: flex;
  font-size: 0.95rem;
  font-weight: 700;
  gap: 8px;
  letter-spacing: 0.04em;
  margin: 0 0 12px;
}

.ria-tool-kicker::before {
  background: var(--ria-tool-accent-text);
  border-radius: 1px;
  content: '';
  display: inline-block;
  height: 14px;
  width: 3px;
}

.ria-tool-title {
  font-size: clamp(1.5rem, 4.5vw, 1.9rem);
  font-weight: 900;
  line-height: 1.45;
  margin: 0 0 14px;
}

.ria-tool-lead {
  color: var(--ria-tool-text);
  font-size: 1.125rem;
  line-height: 1.85;
  margin: 0 0 12px;
}

.ria-tool-reassure {
  color: var(--ria-tool-muted);
  font-size: 1rem;
  line-height: 1.8;
  margin: 0 0 22px;
}

.ria-tool-reassure::before {
  content: '\2713\0020';
  color: var(--ria-tool-accent-text);
  font-weight: 700;
}

.ria-tool-form {
  display: grid;
  gap: 22px;
}

.ria-tool-grid {
  display: grid;
  gap: 20px;
}

.ria-tool-field label,
.ria-tool-fieldset legend {
  display: block;
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 9px;
}

.ria-tool-field-example {
  color: var(--ria-tool-muted);
  display: block;
  font-size: 0.95rem;
  font-weight: 400;
  margin-top: 4px;
}

.ria-tool-input-wrap {
  position: relative;
}

.ria-tool-field input[type="text"],
.ria-tool-field input[type="number"],
.ria-tool-field input[type="month"],
.ria-tool-field select {
  appearance: none;
  background: var(--ria-tool-surface);
  border: 1px solid #cdb89f;
  border-radius: 8px;
  box-sizing: border-box;
  color: var(--ria-tool-text);
  font-family: inherit;
  font-size: 1.125rem;
  font-variant-numeric: tabular-nums;
  line-height: 1.4;
  min-height: 56px;
  padding: 14px 16px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  width: 100%;
}

.ria-tool-input-wrap input[type="text"],
.ria-tool-input-wrap input[type="number"] {
  padding-right: 60px;
}

.ria-tool-unit {
  color: var(--ria-tool-muted);
  font-size: 1.1rem;
  font-weight: 700;
  pointer-events: none;
  position: absolute;
  right: 16px;
  top: 0;
  height: 56px;
  display: flex;
  align-items: center;
}

.ria-tool-field select {
  background-image: linear-gradient(45deg, transparent 50%, var(--ria-tool-muted) 50%), linear-gradient(135deg, var(--ria-tool-muted) 50%, transparent 50%);
  background-position: calc(100% - 20px) center, calc(100% - 15px) center;
  background-repeat: no-repeat;
  background-size: 5px 5px, 5px 5px;
  padding-right: 40px;
}

.ria-tool-field input:focus,
.ria-tool-field select:focus {
  border-color: var(--ria-tool-accent-strong);
  box-shadow: 0 0 0 3px rgba(255, 152, 0, 0.32);
  outline: none;
}

.ria-tool-field input[aria-invalid="true"] {
  border-color: var(--ria-tool-danger);
}

.ria-tool-field input[aria-invalid="true"]:focus {
  box-shadow: 0 0 0 3px rgba(179, 38, 30, 0.22);
}

.ria-tool-field-error {
  color: var(--ria-tool-danger);
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.7;
  margin: 8px 0 0;
}

.ria-tool-hint {
  color: var(--ria-tool-muted);
  font-size: 1rem;
  line-height: 1.75;
  margin: 8px 0 0;
}

.ria-tool-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 6px;
}

.ria-tool-button {
  background: linear-gradient(180deg, var(--ria-tool-button-start) 0%, var(--ria-tool-button-end) 100%);
  border: 0;
  border-radius: 10px;
  box-shadow: 0 6px 18px rgba(156, 54, 0, 0.28);
  color: #fff;
  cursor: pointer;
  font-family: inherit;
  font-size: 1.2rem;
  font-weight: 700;
  min-height: 60px;
  padding: 14px 32px;
  transition: filter 0.15s ease, transform 0.1s ease;
  width: 100%;
}

.ria-tool-button:hover {
  filter: brightness(1.06);
}

.ria-tool-button:active {
  transform: translateY(1px);
}

.ria-tool-button:focus-visible {
  box-shadow: 0 0 0 3px rgba(230, 81, 0, 0.35);
  outline: none;
}

.ria-tool-error {
  color: var(--ria-tool-danger);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.7;
  margin: 0;
}

.ria-tool-result {
  background: rgba(255, 255, 255, 0.86);
  border-top: 3px double var(--ria-tool-border);
  margin-top: 26px;
  padding: 24px 18px 22px;
}

.ria-tool-result[hidden] {
  display: none;
}

.ria-tool-result:not([hidden]) {
  animation: ria-tool-reveal 0.45s ease both;
}

@keyframes ria-tool-reveal {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .ria-tool-result:not([hidden]) {
    animation: none;
  }
}

.ria-tool-result-label {
  color: var(--ria-tool-muted);
  font-size: 0.98rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  margin: 0 0 10px;
}

.ria-tool-result-value {
  color: var(--ria-tool-accent-text);
  font-size: clamp(2.4rem, 10vw, 3.4rem);
  font-variant-numeric: tabular-nums;
  font-weight: 900;
  letter-spacing: 0.01em;
  line-height: 1.2;
  margin: 0 0 18px;
}

.ria-tool-result-caption {
  color: var(--ria-tool-text);
  font-size: 1.05rem;
  line-height: 1.8;
  margin: 0 0 18px;
}

.ria-tool-callout {
  background: var(--ria-tool-accent-soft);
  border-left: 4px solid var(--ria-tool-accent);
  border-radius: 8px;
  color: var(--ria-tool-text);
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.85;
  margin: 0 0 18px;
  padding: 16px 18px;
}

.ria-tool-result table {
  background: #fff;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
  margin: 0 0 18px;
  width: 100%;
}

.ria-tool-result th,
.ria-tool-result td {
  border: 1px solid #eadfce;
  font-size: 1.05rem;
  line-height: 1.5;
  padding: 14px 13px;
}

.ria-tool-result th {
  background: #fff6ea;
  font-weight: 700;
  text-align: left;
}

.ria-tool-result td:last-child {
  font-weight: 700;
  text-align: right;
  white-space: nowrap;
}

.ria-tool-cta {
  background: var(--ria-tool-accent-soft);
  border: 2px solid var(--ria-tool-accent);
  border-radius: 10px;
  margin: 24px 0 0;
  padding: 22px 18px;
  text-align: center;
}

.ria-tool-cta-title {
  color: var(--ria-tool-text);
  font-size: 1.15rem;
  font-weight: 800;
  line-height: 1.6;
  margin: 0 0 10px;
}

.ria-tool-cta-text {
  color: var(--ria-tool-text);
  font-size: 1rem;
  line-height: 1.8;
  margin: 0 0 18px;
}

.ria-tool-cta-button {
  background: linear-gradient(180deg, var(--ria-tool-button-start) 0%, var(--ria-tool-button-end) 100%);
  border-radius: 10px;
  box-shadow: 0 6px 18px rgba(156, 54, 0, 0.28);
  color: #fff;
  display: inline-block;
  font-size: 1.15rem;
  font-weight: 700;
  min-height: 56px;
  line-height: 28px;
  padding: 14px 34px;
  text-decoration: none;
  transition: filter 0.15s ease;
}

.ria-tool-cta-button:hover,
.ria-tool-cta-button:focus-visible {
  color: #fff;
  filter: brightness(1.06);
}

.ria-tool-disclaimer {
  margin: 16px 0 0;
}

.ria-tool-disclaimer summary {
  color: var(--ria-tool-muted);
  cursor: pointer;
  font-size: 0.98rem;
  font-weight: 700;
  list-style: revert;
  padding: 8px 0;
}

.ria-tool-disclaimer summary:focus-visible {
  outline: 2px solid var(--ria-tool-accent-strong);
  outline-offset: 2px;
}

.ria-tool-note {
  color: var(--ria-tool-muted);
  font-size: 0.95rem;
  line-height: 1.85;
  margin: 8px 0 0;
}

/* Static bottom CTA lead-in (page-level, outside the JS-mounted .ria-tool
   widget). The [ria_cta] shortcode itself is styled by the WP plugin. */
.ria-static-cta {
  background: var(--ria-tool-accent-soft);
  border: 2px solid var(--ria-tool-accent);
  border-radius: 10px;
  margin: 28px 0;
  padding: 22px 18px;
  text-align: center;
}

.ria-static-cta-title {
  color: var(--ria-tool-text);
  font-size: 1.15rem;
  font-weight: 800;
  line-height: 1.6;
  margin: 0 0 10px;
}

.ria-static-cta p {
  color: var(--ria-tool-text);
  font-size: 1rem;
  line-height: 1.8;
  margin: 0 0 12px;
}

.ria-static-cta p:last-child {
  margin-bottom: 0;
}

.ria-tool-help {
  background: #eef5fc;
  border-left: 4px solid var(--ria-tool-blue);
  border-radius: 6px;
  margin-top: 20px;
  padding: 15px 16px;
}

.ria-tool-help,
.ria-tool-help p {
  font-size: 1rem;
  line-height: 1.8;
  margin: 0;
}

.ria-tool-help a {
  color: var(--ria-tool-blue);
  font-weight: 700;
}

.ria-tool-checkbox {
  align-items: center;
  color: var(--ria-tool-text);
  cursor: pointer;
  display: flex;
  font-size: 1.05rem;
  font-weight: 400;
  gap: 12px;
  line-height: 1.6;
  margin-top: 14px;
  min-height: 44px;
}

.ria-tool-checkbox input[type="checkbox"] {
  flex-shrink: 0;
  height: 24px;
  width: 24px;
}

.ria-tool-field input:disabled {
  background: #f2ede6;
  color: var(--ria-tool-muted);
}

.ria-tool-table-scroll {
  overflow-x: auto;
}

.ria-tool-table-scroll table {
  min-width: 480px;
}

@media (min-width: 720px) {
  .ria-tool-inner,
  .ria-tool-result {
    padding-left: 28px;
    padding-right: 28px;
  }

  .ria-tool-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* ============================================================
   タブ風クロスナビ（ツール間横断ナビ）
   ============================================================ */
.ria-tool-nav {
  display: flex;
  flex-wrap: nowrap;
  gap: 0;
  margin: 0 0 24px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  border-bottom: 2px solid #e8ddd0;
}

.ria-tool-nav::-webkit-scrollbar {
  display: none;
}

.ria-tool-nav a,
.ria-tool-nav span {
  align-items: center;
  border-bottom: 2px solid transparent;
  color: var(--ria-tool-muted);
  cursor: pointer;
  display: inline-flex;
  flex-shrink: 0;
  font-family: var(--ria-tool-font);
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: -2px;
  min-height: 44px;
  padding: 10px 14px;
  text-decoration: none;
  transition: color 0.15s ease, border-color 0.15s ease;
  white-space: nowrap;
}

.ria-tool-nav a:hover {
  color: var(--ria-tool-accent-text);
  border-bottom-color: var(--ria-tool-border);
}

.ria-tool-nav a:focus-visible {
  outline: 2px solid var(--ria-tool-accent-strong);
  outline-offset: -2px;
}

.ria-tool-nav span[aria-current="page"] {
  border-bottom-color: var(--ria-tool-accent-text);
  color: var(--ria-tool-accent-text);
  cursor: default;
}

.ria-tool-nav .ria-tool-nav-hub {
  color: var(--ria-tool-blue);
  border-right: 1px solid #e8ddd0;
  margin-right: 4px;
  padding-right: 18px;
}

.ria-tool-nav .ria-tool-nav-hub:hover {
  color: var(--ria-tool-blue);
  border-bottom-color: var(--ria-tool-blue);
}

@media (min-width: 600px) {
  .ria-tool-nav a,
  .ria-tool-nav span {
    font-size: 0.95rem;
    padding: 10px 18px;
  }
}

/* ============================================================
   UIブラッシュアップ: シンプル×モダン（余白・タイポ・カード洗練）
   ============================================================ */

/* ツールカードの角丸をより繊細に、シャドウを控えめに */
.ria-tool {
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(122, 76, 24, 0.07), 0 1px 4px rgba(122, 76, 24, 0.05);
  border: 1.5px solid var(--ria-tool-border);
  margin: 32px 0;
}

/* 内側パディングをやや広く */
.ria-tool-inner {
  padding: 32px 20px 28px;
}

/* 結果数値をタイポグラフィで際立たせる */
.ria-tool-result-value {
  font-size: clamp(2.6rem, 10vw, 3.6rem);
  letter-spacing: -0.01em;
  line-height: 1.15;
  margin: 0 0 16px;
}

/* calloutを繊細に: 左ボーダーのみ、角丸も小さめ */
.ria-tool-callout {
  border-radius: 6px;
  font-size: 1.1rem;
  padding: 14px 16px;
}

/* 入力フォームの余白を統一 */
.ria-tool-form {
  gap: 24px;
}

.ria-tool-grid {
  gap: 22px;
}

/* ボタンの角丸をわずかに大きく・グラデを抑える */
.ria-tool-button {
  background: var(--ria-tool-button-start);
  border-radius: 8px;
  box-shadow: 0 3px 10px rgba(156, 54, 0, 0.22);
  font-size: 1.15rem;
  letter-spacing: 0.02em;
}

.ria-tool-button:hover {
  background: #b33e00;
  filter: none;
}

/* 結果エリアをよりクリーンに */
.ria-tool-result {
  border-top: 1px solid var(--ria-tool-border);
  padding: 28px 20px 24px;
}

/* Static CTA をよりシンプルに */
.ria-static-cta {
  border-radius: 10px;
  border: 1.5px solid var(--ria-tool-accent);
  padding: 24px 20px;
}

/* インラインCTA */
.ria-tool-cta {
  border-radius: 8px;
  border: 1.5px solid var(--ria-tool-accent);
  padding: 20px 16px;
}

.ria-tool-cta-button {
  background: var(--ria-tool-button-start);
  border-radius: 8px;
  box-shadow: 0 3px 10px rgba(156, 54, 0, 0.22);
  font-size: 1.1rem;
  letter-spacing: 0.02em;
}

.ria-tool-cta-button:hover,
.ria-tool-cta-button:focus-visible {
  color: #fff;
  background: #b33e00;
  filter: none;
}

/* result table のアクセントを繊細に */
.ria-tool-result th {
  background: #fdf5e8;
}

.ria-tool-result th,
.ria-tool-result td {
  border-color: #f0e6d4;
  font-size: 1rem;
  padding: 12px 14px;
}

/* PR表記 */
.ria-pr-note {
  color: var(--ria-tool-muted);
  font-size: 0.88rem;
  line-height: 1.6;
  margin: -4px 0 14px;
}

@media (min-width: 720px) {
  .ria-tool-inner,
  .ria-tool-result {
    padding-left: 32px;
    padding-right: 32px;
  }
}