:root {
  --ink: #201b17;
  --ink-soft: #3f3730;
  --muted: #71665c;
  --paper: #fffdf8;
  --canvas: #f4efe7;
  --line: #d8ccbf;
  --accent: #c04d1d;
  --accent-dark: #a84317;
  --accent-soft: #f6dfd2;
  --danger: #a43a31;
  --amber: #9a651e;
  --good: #306548;
  --radius: 6px;
  --content-width: 1120px;
  --font-heading: "Yu Mincho", "Hiragino Mincho ProN", "Hiragino Mincho Pro", serif;
  --font-body: "Yu Gothic", "YuGothic", "Hiragino Kaku Gothic ProN", "Hiragino Sans", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.8;
  text-rendering: optimizeLegibility;
}

button,
input,
select {
  font: inherit;
}

a,
button,
input,
select,
summary {
  -webkit-tap-highlight-color: transparent;
}

a,
button {
  min-height: 44px;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(216, 95, 37, 0.35);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 8px 12px;
  background: var(--ink);
  color: #fff;
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header,
main,
footer {
  width: min(calc(100% - 36px), var(--content-width));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  text-decoration: none;
}

.brand img {
  width: 68px;
  height: auto;
  object-fit: contain;
}

.brand span {
  padding-left: 12px;
  border-left: 1px solid var(--line);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 0 4px;
  border-bottom: 2px solid var(--accent);
  color: var(--ink);
  font-size: 0.82rem;
  font-weight: 800;
  text-decoration: none;
}

main {
  padding-bottom: 72px;
}

.hero {
  padding: 48px 0 40px;
}

.hero-label,
.section-label {
  margin: 0 0 12px;
  color: var(--accent-dark);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.hero h1 {
  max-width: 900px;
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(2.15rem, 9vw, 5.9rem);
  font-weight: 700;
  letter-spacing: -0.055em;
  line-height: 1.16;
}

.hero h1 span,
.hero h1 em {
  display: block;
  white-space: nowrap;
}

.hero h1 em {
  color: var(--accent);
  font-style: normal;
}

.hero-bottom {
  display: grid;
  gap: 28px;
  margin-top: 28px;
}

.hero-bottom > p {
  max-width: 620px;
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.98rem;
}

.hero-facts {
  display: none;
  margin: 0;
  border-top: 1px solid var(--line);
}

.hero-facts div {
  display: grid;
  grid-template-columns: 78px 1fr;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
}

.hero-facts dt {
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 800;
}

.hero-facts dd {
  margin: 0;
  font-size: 0.84rem;
  font-weight: 700;
}

#diagnose,
#preview-area,
#full-area {
  scroll-margin-top: 24px;
}

.diagnose-panel {
  position: relative;
  display: grid;
  gap: 16px;
  padding: 22px 20px 20px;
  background: var(--ink);
  color: #fff;
}

.diagnose-panel::before {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: var(--accent);
  content: "";
}

.diagnose-intro h2 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(1.45rem, 6vw, 2.6rem);
  line-height: 1.45;
}

.diagnose-intro > p:last-child {
  display: none;
  margin: 12px 0 0;
  color: #d9d1ca;
  font-size: 0.88rem;
}

.diagnose-panel .section-label {
  color: #ffb18d;
}

.diagnose-intro {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

#audit-form {
  align-self: start;
}

.url-field label,
.test-tools label {
  display: block;
  font-size: 0.8rem;
  font-weight: 800;
}

.url-field input,
.test-tools select {
  width: 100%;
  margin-top: 7px;
  padding: 13px 14px;
  border: 2px solid transparent;
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
}

.url-field input:focus,
.test-tools select:focus {
  border-color: #ffb18d;
  outline: none;
}

.url-field p {
  margin: 4px 0 0;
  color: #c8beb5;
  font-size: 0.72rem;
}

.permission {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin-top: 15px;
  color: #e5ded7;
  font-size: 0.78rem;
  line-height: 1.65;
  cursor: pointer;
}

.permission input {
  width: 18px;
  height: 18px;
  margin: 4px 0 0;
  accent-color: var(--accent);
  flex: 0 0 auto;
}

.test-tools {
  margin-top: 14px;
  padding: 10px;
  border: 1px solid #62564d;
}

.test-tools summary {
  cursor: pointer;
  font-size: 0.78rem;
}

.test-tools label {
  margin-top: 8px;
}

#submit-button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  margin-top: 18px;
  padding: 12px 16px;
  border: 0;
  border-radius: var(--radius);
  background: var(--accent);
  color: #fff;
  font-weight: 800;
  cursor: pointer;
  transition: background-color 160ms ease, transform 160ms ease;
}

#submit-button:hover {
  background: #a94017;
}

#submit-button:active {
  transform: translateY(1px);
}

#submit-button:disabled {
  cursor: wait;
  opacity: 0.7;
}

.run-status {
  min-height: 1.8em;
  margin: 10px 0 0;
  font-size: 0.8rem;
}

.run-status.error,
.error {
  color: #ffaaa3;
}

.run-status.success,
.success {
  color: #9ed8b7;
}

.run-status.loading,
.loading {
  color: #e9c18e;
}

.form-note {
  margin: 2px 0 0;
  color: #bfb5ad;
  font-size: 0.69rem;
}

.check-points,
.faq-section,
.safety-note {
  padding: 64px 0;
  border-bottom: 1px solid var(--line);
}

.check-points-heading h2,
.faq-section h2,
.safety-note h2 {
  max-width: 720px;
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 7vw, 3.25rem);
  line-height: 1.45;
  letter-spacing: -0.035em;
}

.check-points-heading h2 span,
.faq-section h2 span {
  display: block;
  white-space: nowrap;
}

.check-points-heading h2,
.faq-section h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
}

.check-point-list {
  margin-top: 36px;
  border-top: 1px solid var(--ink);
}

.check-point-list article {
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.check-point-list h3 {
  margin: 0;
  font-size: 1rem;
}

.check-point-list p {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.faq-section {
  display: grid;
  gap: 34px;
}

.faq-list {
  border-top: 1px solid var(--ink);
}

.faq-list details {
  border-bottom: 1px solid var(--line);
}

.faq-list summary {
  position: relative;
  padding: 18px 38px 18px 0;
  font-size: 0.9rem;
  font-weight: 800;
  list-style: none;
  cursor: pointer;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  position: absolute;
  top: 17px;
  right: 4px;
  color: var(--accent);
  font-size: 1.2rem;
  content: "+";
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list p {
  max-width: 680px;
  margin: -2px 0 18px;
  color: var(--muted);
  font-size: 0.86rem;
}

.hidden {
  display: none !important;
}

.preview,
.full-result {
  margin-top: 36px;
  padding: 24px 20px 28px;
  border-top: 4px solid var(--accent);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: 0 18px 48px rgba(49, 38, 29, 0.08);
}

.preview:focus,
.full-result:focus {
  outline: none;
}

.preview-heading,
.full-heading {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.preview h2,
.full-result h2 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(1.55rem, 6vw, 2.35rem);
  line-height: 1.4;
}

.target-summary,
.full-heading p {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 0.82rem;
  overflow-wrap: anywhere;
}

.score-block {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: end;
  width: fit-content;
}

.score-block strong {
  font-family: var(--font-heading);
  font-size: clamp(4.5rem, 22vw, 6.5rem);
  letter-spacing: -0.06em;
  font-variant-numeric: tabular-nums;
  line-height: 0.82;
}

.score-block strong.good {
  color: var(--good);
}

.score-block strong.caution {
  color: var(--amber);
}

.score-block strong.danger {
  color: var(--danger);
}

.score-block > span {
  margin-left: 9px;
  color: var(--muted);
  font-size: 0.82rem;
}

.score-block small {
  grid-column: 1 / -1;
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.72rem;
}

.score-summary {
  margin-top: 26px;
  padding: 18px 18px 16px;
  border-left: 4px solid var(--accent);
  background: #fbf1e9;
}

.score-summary strong {
  font-size: 1rem;
}

.score-summary p {
  max-width: 48rem;
  margin: 3px 0 0;
  color: var(--ink-soft);
  font-size: 0.82rem;
  line-height: 1.7;
}

.category-details {
  margin-top: 28px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.category-details summary {
  position: relative;
  padding: 16px 30px 16px 0;
  font-size: 0.82rem;
  font-weight: 800;
  cursor: pointer;
  list-style: none;
}

.category-details summary::-webkit-details-marker {
  display: none;
}

.category-details summary::after {
  position: absolute;
  top: 50%;
  right: 2px;
  color: var(--accent);
  content: "＋";
  font-size: 1.2rem;
  transform: translateY(-50%);
}

.category-details[open] summary::after {
  content: "−";
}

.category-list {
  padding-bottom: 8px;
}

.category {
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}

.category:last-child {
  border-bottom: 0;
}

.category > div:first-child {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.category strong {
  font-size: 0.86rem;
}

.category span {
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
}

.bar {
  display: block;
  width: 100%;
  height: 5px;
  margin: 9px 0 6px;
  border: 0;
  appearance: none;
  background: transparent;
  overflow: hidden;
}

.bar::-webkit-progress-bar {
  background: #e9e2d9;
}

.bar::-webkit-progress-value {
  background: var(--accent);
}

.bar::-moz-progress-bar {
  background: var(--accent);
}

.category small {
  color: var(--muted);
  font-size: 0.68rem;
}

.priority-preview,
.priority-section,
.finding-section {
  margin-top: 38px;
}

.priority-list {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.preview-item {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 16px;
  border-radius: var(--radius);
  background: #f7f1e9;
}

.preview-item > span {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid #d7c5b6;
  border-radius: 50%;
  color: var(--accent-dark);
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
}

.preview-item p {
  margin: 0;
  color: var(--accent-dark);
  font-size: 0.7rem;
  font-weight: 800;
}

.preview-item h3 {
  margin: 3px 0 4px;
  font-size: 0.94rem;
  line-height: 1.55;
}

.preview-item small {
  color: var(--muted);
  font-size: 0.69rem;
}

.unlock-card {
  display: grid;
  gap: 22px;
  margin-top: 34px;
  padding: 24px 20px;
  border-radius: var(--radius);
  background: var(--ink);
  color: #fffaf4;
}

.unlock-copy h2 {
  font-size: clamp(1.45rem, 6vw, 2.2rem);
}

.unlock-copy .section-label {
  color: #ffb18d;
}

.unlock-copy ul {
  margin: 16px 0 0;
  padding: 0;
  color: #e6ddd5;
  font-size: 0.83rem;
  list-style: none;
}

.unlock-copy li {
  position: relative;
  padding: 5px 0 5px 18px;
}

.unlock-copy li::before {
  position: absolute;
  left: 0;
  color: #ffb18d;
  content: "—";
}

.unlock-action {
  padding: 20px;
  border-radius: var(--radius);
  background: #fffaf4;
  color: var(--ink);
}

.unlock-action > p {
  margin: 0;
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 800;
}

.unlock-action strong {
  display: block;
  margin-top: 2px;
  font-size: 1.55rem;
  font-variant-numeric: tabular-nums;
}

.unlock-action strong small {
  margin-left: 4px;
  font-size: 0.68rem;
  font-weight: 600;
}

.unlock-action button {
  width: 100%;
  margin-top: 13px;
  min-height: 50px;
  padding: 11px 14px;
  border: 0;
  border-radius: var(--radius);
  background: var(--accent);
  color: #fff;
  font-weight: 800;
  cursor: pointer;
}

.unlock-action button:disabled {
  cursor: not-allowed;
  opacity: 0.58;
}

.unlock-action > small {
  display: block;
  margin-top: 8px;
  color: #7b4d37;
  font-size: 0.68rem;
}

.line-consultation {
  display: grid;
  gap: 16px;
  margin-top: 12px;
  padding: 26px 2px 0;
}

.line-consultation h2 {
  font-size: clamp(1.35rem, 5vw, 1.85rem);
}

.line-consultation p:last-child {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.line-consultation a {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: 100%;
  min-height: 48px;
  padding: 8px 14px;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  color: var(--ink);
  font-size: 0.82rem;
  font-weight: 800;
  text-decoration: none;
}

.full-result {
  margin-top: 24px;
}

.exports {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.exports a {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
  font-size: 0.75rem;
  font-weight: 800;
  text-decoration: none;
}

.full-priority-list {
  margin-top: 16px;
  display: grid;
  gap: 12px;
}

.full-priority-list article {
  padding: 18px;
  border-radius: var(--radius);
  background: #f7f1e9;
}

.full-priority-list h3 {
  margin: 0 0 10px;
  font-size: 1rem;
}

.task {
  margin: 9px 0;
  padding-left: 12px;
  border-left: 3px solid var(--line);
}

.task.fail {
  border-left-color: var(--danger);
}

.task.partial {
  border-left-color: var(--amber);
}

.task p,
.task small {
  display: block;
  margin: 3px 0;
  color: var(--muted);
  font-size: 0.76rem;
}

.finding-title {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.finding-section {
  padding-top: 30px;
  border-top: 1px solid var(--line);
}

.finding-title label {
  font-size: 0.78rem;
  font-weight: 800;
}

.finding-title select {
  margin-left: 7px;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.finding-layout {
  display: grid;
  gap: 14px;
  margin-top: 16px;
}

.finding-list {
  max-height: 650px;
  border: 1px solid var(--line);
  background: #fff;
  overflow: auto;
}

.finding-row {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 5px 8px;
  width: 100%;
  min-height: 44px;
  padding: 12px;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  text-align: left;
  cursor: pointer;
}

.finding-row:last-child {
  border-bottom: 0;
}

.finding-row:hover {
  background: #fbf7f1;
}

.finding-row span {
  font-size: 0.7rem;
  font-weight: 900;
}

.finding-row.fail span {
  color: var(--danger);
}

.finding-row.partial span {
  color: var(--amber);
}

.finding-row.pass span {
  color: var(--good);
}

.finding-row strong {
  font-size: 0.8rem;
}

.finding-row small,
.finding-row em {
  grid-column: 2;
  color: var(--muted);
  font-size: 0.71rem;
  font-style: normal;
  overflow-wrap: anywhere;
}

.finding-detail {
  align-self: start;
  padding: 16px;
  border: 1px solid var(--line);
  background: #fff;
}

.finding-detail h3 {
  margin: 4px 0 14px;
  font-size: 0.95rem;
}

.finding-detail dl {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 7px;
  margin: 0;
  font-size: 0.75rem;
}

.finding-detail dt {
  font-weight: 800;
}

.finding-detail dd {
  margin: 0;
  overflow-wrap: anywhere;
}

.finding-detail blockquote {
  margin: 15px 0;
  padding: 10px 12px;
  border-left: 3px solid var(--accent);
  background: #faf4ed;
  font-size: 0.74rem;
  white-space: pre-wrap;
}

.finding-detail a {
  color: var(--accent-dark);
  font-size: 0.78rem;
  font-weight: 800;
}

.status {
  font-size: 0.72rem;
  font-weight: 900;
}

.muted,
.no-result {
  color: var(--muted);
}

.safety-note {
  max-width: 820px;
  border-bottom: 0;
}

.safety-note h2 {
  font-size: clamp(0.92rem, 3vw, 1.9rem);
  letter-spacing: -0.045em;
  white-space: nowrap;
}

.safety-note p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.safety-note a {
  display: inline-flex;
  align-items: center;
  margin-top: 18px;
  color: var(--ink);
  font-size: 0.8rem;
  font-weight: 800;
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-underline-offset: 5px;
}

footer {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 24px 0 34px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.72rem;
}

footer div {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: baseline;
}

footer strong {
  color: var(--ink);
}

footer p {
  margin: 0;
}

footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
}

footer nav a {
  color: var(--muted);
  text-underline-offset: 3px;
}

footer div a {
  color: inherit;
  text-underline-offset: 3px;
}

@media (min-width: 900px) {
  .site-header,
  main,
  footer {
    width: min(calc(100% - 64px), var(--content-width));
  }

  .hero {
    padding: 76px 0 56px;
  }

  .hero-bottom {
    grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr);
    align-items: end;
    margin-top: 38px;
  }

  .hero-facts {
    display: grid;
  }

  .hero-bottom > p {
    font-size: 1.04rem;
  }

  .diagnose-panel {
    grid-template-columns: minmax(250px, 0.7fr) minmax(420px, 1.3fr);
    gap: 54px;
    padding: 42px 44px 36px;
  }

  .diagnose-intro {
    position: static;
    width: auto;
    height: auto;
    padding: 0;
    margin: 0;
    overflow: visible;
    clip: auto;
    white-space: normal;
  }

  .diagnose-intro > p:last-child {
    display: block;
  }

  .check-points,
  .faq-section,
  .safety-note {
    padding: 92px 0;
  }

  .check-point-list {
    margin-top: 36px;
  }

  .check-point-list article {
    padding: 24px 0;
  }

  .faq-section {
    grid-template-columns: minmax(250px, 0.8fr) minmax(420px, 1.2fr);
    gap: 72px;
  }

  .preview,
  .full-result {
    padding: 38px 42px;
  }

  .preview-heading,
  .full-heading {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
  }

  .category-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 34px;
  }

  .priority-list {
    grid-template-columns: minmax(0, 860px);
  }

  .preview-item {
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 18px;
    padding: 18px 20px;
  }

  .preview-item > span {
    width: 48px;
    height: 48px;
  }

  .preview-item:last-child,
  .preview-item:nth-child(2) {
    padding: 18px 20px;
  }

  .unlock-card {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 42px;
    align-items: center;
  }

  .line-consultation {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .line-consultation a {
    width: auto;
    min-width: 260px;
  }

  .full-priority-list {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .full-priority-list article {
    padding: 18px;
  }

  .finding-title {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  .finding-layout {
    grid-template-columns: minmax(0, 1.12fr) minmax(300px, 0.88fr);
  }

  .finding-detail {
    position: sticky;
    top: 16px;
  }

  footer {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

@media (min-width: 1080px) {
  .hero h1 {
    font-size: 5.9rem;
  }

  .check-points {
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    gap: 64px;
  }

  .check-points-heading,
  .check-point-list {
    min-width: 0;
  }

  .check-point-list {
    margin-top: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}