:root {
  --color-bg: #f7f8f5;
  --color-surface: #ffffff;
  --color-text: #1f2723;
  --color-muted: #66736d;
  --color-border: #d8ded8;
  --color-primary: #1e6f5c;
  --color-primary-strong: #12483c;
  --color-accent: #c9792b;
  --color-info: #315f9b;
  --color-warning: #a15c1f;
  --color-success: #2f7d54;
  --color-danger: #9b2f36;
  --shadow-soft: 0 20px 50px rgba(31, 39, 35, 0.12);
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 72px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(90deg, rgba(216, 222, 216, 0.28) 1px, transparent 1px) 0 0 / 54px 54px,
    linear-gradient(180deg, rgba(216, 222, 216, 0.18) 1px, transparent 1px) 0 0 / 54px 54px,
    var(--color-bg);
  color: var(--color-text);
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.7;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

:focus-visible {
  outline: 3px solid rgba(201, 121, 43, 0.55);
  outline-offset: 3px;
}

.skip-link {
  left: 12px;
  position: fixed;
  top: 12px;
  transform: translateY(-140%);
  z-index: 100;
}

.skip-link:focus {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: var(--space-2) var(--space-3);
  transform: translateY(0);
}

.sr-only {
  clip: rect(0, 0, 0, 0);
  border: 0;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  width: 1px;
}

.container {
  margin: 0 auto;
  max-width: 1120px;
  padding: 0 var(--space-5);
}

.site-header {
  background: rgba(247, 248, 245, 0.88);
  border-bottom: 1px solid rgba(216, 222, 216, 0);
  left: 0;
  position: sticky;
  right: 0;
  top: 0;
  transition: border-color 180ms ease, box-shadow 180ms ease;
  z-index: 50;
}

.site-header.is-scrolled {
  border-color: var(--color-border);
  box-shadow: 0 10px 30px rgba(31, 39, 35, 0.08);
}

.header-inner {
  align-items: center;
  display: grid;
  gap: var(--space-4);
  grid-template-columns: auto 1fr auto;
  margin: 0 auto;
  max-width: 1180px;
  min-height: 72px;
  padding: 0 var(--space-5);
}

.brand {
  align-items: center;
  display: inline-flex;
  gap: var(--space-3);
}

.brand-mark {
  align-items: center;
  background: var(--color-primary-strong);
  color: #fff;
  display: inline-flex;
  font-size: 13px;
  font-weight: 800;
  height: 38px;
  justify-content: center;
  width: 38px;
}

.brand strong,
.brand small {
  display: block;
  line-height: 1.25;
}

.brand small {
  color: var(--color-muted);
  font-size: 12px;
}

.site-nav {
  align-items: center;
  display: flex;
  gap: var(--space-5);
  justify-content: flex-end;
}

.site-nav a {
  color: var(--color-muted);
  font-size: 14px;
  font-weight: 600;
}

.site-nav a:hover {
  color: var(--color-primary-strong);
}

.header-cta {
  background: var(--color-primary);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  padding: 9px 16px;
}

.menu-button {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  display: none;
  height: 42px;
  padding: 9px;
  width: 42px;
}

.menu-button span:not(.sr-only) {
  background: var(--color-text);
  display: block;
  height: 2px;
  margin: 5px 0;
}

.section {
  padding: var(--space-8) 0;
}

.section-band {
  padding: 64px 0 var(--space-8);
}

.muted {
  background: rgba(255, 255, 255, 0.54);
  border-bottom: 1px solid rgba(216, 222, 216, 0.7);
  border-top: 1px solid rgba(216, 222, 216, 0.7);
}

.hero-grid {
  align-items: center;
  display: grid;
  gap: var(--space-7);
  grid-template-columns: minmax(0, 1.02fr) minmax(420px, 0.98fr);
}

.eyebrow {
  color: var(--color-accent);
  font-size: 13px;
  font-weight: 800;
  margin: 0 0 var(--space-3);
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  font-size: 44px;
  line-height: 1.18;
  margin-bottom: var(--space-5);
}

h2 {
  font-size: 30px;
  line-height: 1.24;
  margin-bottom: var(--space-4);
}

h3 {
  font-size: 18px;
  line-height: 1.35;
  margin-bottom: var(--space-2);
}

.hero-lede,
.section-heading p,
.contact p,
.review-grid > .section-heading p,
.proof-grid > .section-heading p {
  color: var(--color-muted);
}

.hero-lede {
  font-size: 17px;
  max-width: 650px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin: var(--space-6) 0;
}

.button {
  align-items: center;
  border: 1px solid transparent;
  display: inline-flex;
  font-weight: 800;
  justify-content: center;
  min-height: 46px;
  padding: 10px 18px;
  transition: background 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  background: var(--color-primary);
  color: #fff;
}

.button-primary:hover {
  background: var(--color-primary-strong);
}

.button-secondary {
  background: var(--color-surface);
  border-color: var(--color-primary);
  color: var(--color-primary-strong);
}

.proof-strip {
  display: grid;
  gap: var(--space-2);
  grid-template-columns: repeat(4, minmax(0, 1fr));
  list-style: none;
  margin: 0;
  max-width: 620px;
  padding: 0;
}

.proof-strip li {
  border-left: 3px solid var(--color-primary);
  color: var(--color-primary-strong);
  font-size: 13px;
  font-weight: 800;
  padding: var(--space-2) var(--space-3);
}

.workflow-preview {
  background: #eef2ec;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft);
  padding: var(--space-5);
  position: relative;
}

.preview-rail {
  display: grid;
  gap: var(--space-2);
  grid-template-columns: repeat(4, 1fr);
  margin-bottom: var(--space-4);
}

.preview-rail span {
  border-bottom: 2px solid var(--color-border);
  color: var(--color-muted);
  font-size: 12px;
  font-weight: 700;
  padding-bottom: var(--space-2);
}

.preview-stack {
  display: grid;
  gap: var(--space-3);
}

.preview-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: var(--space-4);
}

.panel-header,
.map-row {
  align-items: center;
  display: flex;
  justify-content: space-between;
}

.panel-header {
  border-bottom: 1px solid var(--color-border);
  color: var(--color-muted);
  font-size: 13px;
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-2);
}

.panel-header strong {
  color: var(--color-primary-strong);
}

.map-row {
  gap: var(--space-3);
  padding: 8px 0;
}

.map-row span {
  color: var(--color-accent);
  font-weight: 800;
}

.map-row b {
  flex: 1;
}

.map-row em,
.artifact-grid b {
  background: #eef2ec;
  color: var(--color-primary-strong);
  font-size: 12px;
  font-style: normal;
  font-weight: 800;
  padding: 2px 8px;
}

.panel-review {
  margin-left: 44px;
}

.panel-review p,
.panel-report p {
  margin-bottom: var(--space-2);
}

mark {
  background: rgba(161, 92, 31, 0.14);
  color: var(--color-warning);
  font-weight: 800;
  margin-right: var(--space-2);
  padding: 2px 6px;
}

mark.ok {
  background: rgba(47, 125, 84, 0.14);
  color: var(--color-success);
}

.panel-report {
  margin-left: 88px;
}

.report-bars {
  display: grid;
  gap: 8px;
  margin-bottom: var(--space-3);
}

.report-bars i {
  background: linear-gradient(90deg, var(--color-info), rgba(49, 95, 155, 0.2));
  display: block;
  height: 9px;
}

.report-bars i:nth-child(2) {
  width: 78%;
}

.report-bars i:nth-child(3) {
  width: 56%;
}

.section-heading {
  margin-bottom: var(--space-6);
  max-width: 720px;
  text-align: left;
}

.section-heading:not(.align-left) {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.burden-grid,
.artifact-grid {
  display: grid;
  gap: var(--space-4);
}

.burden-grid {
  grid-template-columns: repeat(4, 1fr);
}

.burden-grid article,
.artifact-grid article,
.proof-cards article {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: var(--space-5);
  transition: border-color 160ms ease, transform 160ms ease;
}

.burden-grid article:hover,
.artifact-grid article:hover,
.proof-cards article:hover {
  border-color: rgba(30, 111, 92, 0.5);
  transform: translateY(-2px);
}

.burden-grid span,
.proof-cards span {
  color: var(--color-accent);
  display: block;
  font-weight: 800;
  margin-bottom: var(--space-4);
}

.burden-grid p,
.artifact-grid p,
.proof-cards p {
  color: var(--color-muted);
  font-size: 14px;
  margin-bottom: 0;
}

.timeline {
  counter-reset: step;
  display: grid;
  gap: 0;
  grid-template-columns: repeat(6, 1fr);
  list-style: none;
  margin: 0;
  padding: 0;
}

.timeline li {
  border-top: 2px solid var(--color-primary);
  padding: var(--space-5) var(--space-3) 0 0;
  position: relative;
}

.timeline span {
  align-items: center;
  background: var(--color-primary);
  color: #fff;
  display: inline-flex;
  font-size: 13px;
  font-weight: 800;
  height: 30px;
  justify-content: center;
  left: 0;
  position: absolute;
  top: -16px;
  width: 30px;
}

.timeline h3 {
  margin-top: var(--space-3);
}

.timeline p {
  color: var(--color-muted);
  font-size: 14px;
  margin-bottom: 0;
}

.artifact-grid {
  grid-template-columns: repeat(4, 1fr);
}

.icon {
  align-items: center;
  border: 1px solid var(--color-border);
  color: var(--color-primary-strong);
  display: inline-flex;
  font-weight: 800;
  height: 36px;
  justify-content: center;
  margin-bottom: var(--space-4);
  width: 36px;
}

.artifact-grid b {
  display: inline-block;
  margin-top: var(--space-4);
}

.case-table {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  overflow: hidden;
}

.case-table [role="row"] {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 1.25fr 1fr 1fr 1.1fr;
}

.case-table span {
  border-bottom: 1px solid var(--color-border);
  min-width: 0;
  padding: var(--space-4);
}

.case-table .case-head span {
  background: var(--color-primary-strong);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
}

.review-grid,
.proof-grid,
.contact-grid,
.package-grid {
  display: grid;
  gap: var(--space-7);
  grid-template-columns: 0.86fr 1.14fr;
}

.review-surface {
  background: #eef2ec;
  border: 1px solid var(--color-border);
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr 0.82fr;
  padding: var(--space-5);
}

.slide-preview,
.comment-list article {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
}

.slide-preview {
  min-height: 360px;
  padding: var(--space-5);
}

.slide-topline {
  background: var(--color-accent);
  height: 5px;
  margin-bottom: var(--space-5);
  width: 88px;
}

.slide-preview h3 {
  font-size: 24px;
}

.slide-preview li {
  margin-bottom: var(--space-2);
}

.comment-list {
  display: grid;
  gap: var(--space-3);
}

.comment-list article {
  padding: var(--space-4);
}

.comment-list p {
  font-size: 14px;
  margin-bottom: var(--space-2);
}

.comment-list span {
  color: var(--color-muted);
  font-size: 12px;
}

.status {
  display: inline-block;
  font-size: 12px;
  margin-bottom: var(--space-2);
  padding: 2px 8px;
}

.success {
  background: rgba(47, 125, 84, 0.13);
  color: var(--color-success);
}

.warning {
  background: rgba(161, 92, 31, 0.13);
  color: var(--color-warning);
}

.info {
  background: rgba(49, 95, 155, 0.13);
  color: var(--color-info);
}

.danger {
  background: rgba(155, 47, 54, 0.13);
  color: var(--color-danger);
}

.package-section {
  background: var(--color-primary-strong);
  color: #fff;
}

.package-section .eyebrow,
.package-section .package-name {
  color: #f0bd7b;
}

.package-name {
  font-size: 22px;
  font-weight: 800;
}

.package-details {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: var(--space-5);
}

.package-details dl {
  display: grid;
  gap: var(--space-4);
  margin: 0 0 var(--space-5);
}

.package-details div {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 118px 1fr;
}

.package-details dt {
  color: #c9e1d9;
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.package-details dd {
  margin: 0;
}

.proof-cards {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: repeat(5, 1fr);
}

.proof-cards article {
  min-height: 190px;
}

.contact-points {
  color: var(--color-primary-strong);
  font-weight: 700;
  margin: var(--space-5) 0;
  padding-left: 1.3em;
}

.form-frame {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft);
  min-height: 720px;
  overflow: hidden;
}

.form-frame iframe {
  border: 0;
  height: 720px;
  width: 100%;
}

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-5) 0;
}

.footer-inner {
  align-items: center;
  display: flex;
  justify-content: space-between;
}

.footer-inner p {
  margin: 0;
}

.footer-inner a {
  color: var(--color-primary-strong);
  font-weight: 800;
}

@media (max-width: 1023px) {
  h1 {
    font-size: 34px;
  }

  .hero-grid,
  .review-grid,
  .proof-grid,
  .contact-grid,
  .package-grid {
    grid-template-columns: 1fr;
  }

  .burden-grid,
  .artifact-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .timeline {
    grid-template-columns: repeat(3, 1fr);
    row-gap: var(--space-6);
  }

  .proof-cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 760px) {
  .container,
  .header-inner {
    padding-left: 20px;
    padding-right: 20px;
  }

  .header-inner {
    grid-template-columns: auto auto;
    min-height: 66px;
  }

  .menu-button {
    display: block;
    justify-self: end;
  }

  .site-nav {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    border-top: 1px solid var(--color-border);
    display: none;
    grid-column: 1 / -1;
    padding: var(--space-4) 0;
  }

  .site-nav.is-open {
    display: grid;
    gap: var(--space-3);
  }

  .header-cta {
    display: none;
  }

  .section,
  .section-band {
    padding: 48px 0;
  }

  h1 {
    font-size: 28px;
  }

  h2 {
    font-size: 24px;
  }

  .hero-actions,
  .proof-strip,
  .burden-grid,
  .artifact-grid,
  .timeline,
  .proof-cards {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    display: grid;
  }

  .button {
    width: 100%;
  }

  .workflow-preview {
    padding: var(--space-4);
  }

  .preview-rail {
    grid-template-columns: 1fr 1fr;
  }

  .panel-review,
  .panel-report {
    margin-left: 0;
  }

  .timeline {
    display: grid;
    gap: var(--space-5);
  }

  .timeline li {
    border-left: 2px solid var(--color-primary);
    border-top: 0;
    padding: 0 0 0 var(--space-6);
  }

  .timeline span {
    left: -16px;
    top: 0;
  }

  .case-table [role="row"],
  .review-surface,
  .package-details div {
    grid-template-columns: 1fr;
  }

  .case-table .case-head {
    display: none;
  }

  .case-table [role="row"] {
    gap: 0;
    padding: var(--space-3) 0;
  }

  .case-table span {
    border-bottom: 0;
    padding: 4px var(--space-4);
  }

  .case-table span:first-child {
    color: var(--color-primary-strong);
    font-weight: 800;
  }

  .slide-preview {
    min-height: 0;
  }

  .form-frame,
  .form-frame iframe {
    min-height: 680px;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: var(--space-3);
  }
}