:root {
  --bg: #f6f7f4;
  --surface: #ffffff;
  --surface-2: #eef4f2;
  --ink: #17212b;
  --muted: #61707d;
  --line: #d8dfdd;
  --accent: #0f766e;
  --accent-2: #28527a;
  --danger: #b42318;
  --warn: #a15c05;
  --ok: #287248;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Yu Gothic", "YuGothic", Meiryo, sans-serif;
  letter-spacing: 0;
  line-height: 1.65;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(216, 223, 221, 0.86);
  background: var(--bg);
}

.header-inner,
.container {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border: 2px solid var(--ink);
  border-radius: 6px;
  color: var(--accent);
  font-size: 18px;
  line-height: 1;
}

.nav {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--muted);
  font-size: 14px;
}

.nav a {
  text-decoration: none;
}

.nav a:hover {
  color: var(--ink);
}

.hero {
  padding: 36px 0 28px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
  gap: 28px;
  align-items: start;
}

.intro {
  padding: 22px 0;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.25;
}

h1 {
  max-width: 11em;
  font-size: 58px;
  letter-spacing: 0;
}

h2 {
  font-size: 32px;
}

h3 {
  font-size: 18px;
}

.lead {
  max-width: 39em;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 17px;
}

.facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 24px;
}

.fact {
  min-height: 96px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.fact strong {
  display: block;
  font-size: 22px;
}

.fact span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.source-note {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.source-note a {
  color: var(--accent-2);
  font-weight: 700;
}

.tool-card,
.panel,
.review-form,
.source-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.tool-card {
  padding: 22px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.field {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.field.full {
  grid-column: 1 / -1;
}

input,
select,
textarea {
  width: 100%;
  min-height: 44px;
  border: 1px solid #cbd5d2;
  border-radius: 6px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  letter-spacing: 0;
  padding: 10px 12px;
}

textarea {
  min-height: 108px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus,
button:focus,
a:focus {
  outline: 3px solid rgba(15, 118, 110, 0.24);
  outline-offset: 2px;
}

.button,
button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 16px;
  border: 1px solid var(--accent);
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  font: inherit;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}

.button.secondary,
button.secondary {
  background: #fff;
  color: var(--accent);
}

button:disabled {
  cursor: wait;
  opacity: 0.72;
}

.form-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.filter-bar {
  display: grid;
  grid-template-columns: minmax(220px, 1.2fr) repeat(3, minmax(140px, 1fr)) auto;
  gap: 12px;
  align-items: end;
  margin-top: 24px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.filter-actions {
  display: flex;
  gap: 8px;
}

.microcopy,
.form-status {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.result-panel {
  margin-top: 16px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fbfa;
}

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

.result-head {
  display: grid;
  gap: 2px;
}

.result-head strong {
  font-size: 24px;
}

.result-head span {
  color: var(--muted);
  font-size: 14px;
}

.result-high {
  border-color: rgba(180, 35, 24, 0.34);
  background: #fff7f5;
}

.result-medium {
  border-color: rgba(161, 92, 5, 0.34);
  background: #fffaf1;
}

.result-low {
  border-color: rgba(40, 114, 72, 0.34);
  background: #f4fbf6;
}

.result-list {
  margin: 14px 0 0;
  padding-left: 24px;
}

.result-actions {
  display: flex;
  gap: 10px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.section {
  padding: 42px 0;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
}

.section-head p {
  max-width: 44em;
  margin: 8px 0 0;
  color: var(--muted);
}

.columns {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.panel,
.source-card {
  padding: 18px;
}

.panel p,
.source-card p {
  color: var(--muted);
}

.plain-list {
  margin: 12px 0 0;
  padding-left: 20px;
}

.plain-list li + li {
  margin-top: 8px;
}

.official-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.source-card {
  display: grid;
  gap: 10px;
}

.source-card a {
  color: var(--accent-2);
  font-weight: 800;
}

.review-form {
  padding: 22px;
}

.policy-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-top: 14px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
}

.policy-row input {
  width: 18px;
  min-height: 18px;
  margin-top: 4px;
}

.honeypot {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.notice {
  padding: 14px 16px;
  border: 1px solid rgba(40, 82, 122, 0.22);
  border-radius: 8px;
  background: #f2f7fb;
  color: #264661;
}

.warning {
  border-color: rgba(180, 35, 24, 0.22);
  background: #fff7f5;
  color: #713026;
}

.page-hero {
  padding: 44px 0 22px;
}

.narrow {
  width: min(860px, calc(100% - 32px));
  margin: 0 auto;
}

.guide-grid {
  display: grid;
  gap: 14px;
  counter-reset: guide;
}

.guide-step {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 14px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.guide-step::before {
  counter-increment: guide;
  content: counter(guide);
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 6px;
  background: var(--surface-2);
  color: var(--accent);
  font-weight: 900;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.stat-grid.compact {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 16px;
}

.stat-grid article {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.stat-grid span,
.stat-grid small {
  display: block;
  color: var(--muted);
}

.stat-grid strong {
  display: block;
  margin: 4px 0;
  font-size: 26px;
}

.split {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 16px;
}

.rank-list {
  display: grid;
  gap: 10px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.rank-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.compact-section {
  padding-top: 18px;
}

.case-list {
  display: grid;
  gap: 14px;
}

.case-card {
  display: grid;
  gap: 14px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.case-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.case-head h2 {
  font-size: 24px;
}

.case-badge {
  flex: 0 0 auto;
  padding: 6px 10px;
  border: 1px solid rgba(15, 118, 110, 0.28);
  border-radius: 6px;
  background: var(--surface-2);
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
}

.case-values {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
}

.case-values div {
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.case-values dt {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.case-values dd {
  margin: 3px 0 0;
  font-size: 18px;
  font-weight: 900;
}

.case-meta,
.case-foot {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.case-meta span,
.case-foot span {
  padding: 4px 8px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.case-detail {
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.case-detail strong {
  display: block;
  font-size: 13px;
}

.case-detail p {
  margin: 6px 0 0;
  color: var(--muted);
}

.empty-state {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.empty-state p {
  max-width: 48em;
  color: var(--muted);
}

.site-footer {
  margin-top: 48px;
  padding: 28px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.footer-links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

@media (max-width: 900px) {
  .hero-grid,
  .columns,
  .official-grid,
  .split,
  .stat-grid,
  .stat-grid.compact,
  .filter-bar,
  .case-values {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 24px;
  }

  h1 {
    max-width: none;
    font-size: 44px;
  }

  h2 {
    font-size: 28px;
  }
}

@media (max-width: 640px) {
  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 12px 0;
  }

  .nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
    white-space: nowrap;
  }

  .form-grid,
  .facts {
    grid-template-columns: 1fr;
  }

  .section-head {
    display: block;
  }

  h1 {
    font-size: 34px;
  }

  h2 {
    font-size: 24px;
  }

  .button,
  button,
  .filter-actions {
    width: 100%;
  }

  .filter-actions {
    flex-direction: column;
  }

  .case-head {
    display: grid;
  }
}