:root {
  color-scheme: light;
  --ink: #13231d;
  --muted: #5c6964;
  --paper: #f5f2e9;
  --surface: #fffdf7;
  --line: rgba(19, 35, 29, 0.16);
  --green: #176b4c;
  --green-bright: #9fe870;
  --green-pale: #def2d0;
  --amber: #f2b84b;
  --shadow: 0 24px 70px rgba(22, 55, 43, 0.12);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", "Yu Gothic UI", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background:
    radial-gradient(circle at 92% 8%, rgba(159, 232, 112, 0.28), transparent 24rem),
    var(--paper);
  font-size: 16px;
  line-height: 1.75;
}

a {
  color: inherit;
}

a:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 4px;
  border-radius: 4px;
}

.site-header,
main,
.site-footer {
  width: min(1180px, calc(100% - 48px));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 88px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  font-size: 0.92rem;
  font-weight: 750;
  letter-spacing: 0.04em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 50%;
  color: var(--surface);
  background: var(--ink);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 3px 14px;
  border: 1px solid rgba(23, 107, 76, 0.28);
  border-radius: 999px;
  color: var(--green);
  background: rgba(255, 253, 247, 0.7);
  font-size: 0.75rem;
  font-weight: 750;
  letter-spacing: 0.05em;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(320px, 0.65fr);
  gap: clamp(48px, 8vw, 112px);
  align-items: center;
  min-height: 690px;
  padding: 88px 0 104px;
}

.eyebrow {
  margin: 0 0 20px;
  color: var(--green);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1,
h2,
h3 {
  margin-top: 0;
  line-height: 1.25;
  letter-spacing: -0.035em;
}

h1 {
  max-width: 820px;
  margin-bottom: 28px;
  font-size: clamp(2.65rem, 6vw, 5.35rem);
  font-weight: 800;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(2rem, 4vw, 3.35rem);
}

h3 {
  margin-bottom: 12px;
  font-size: 1.55rem;
}

.hero-lead {
  max-width: 680px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.8vw, 1.16rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 26px;
  align-items: center;
  margin-top: 38px;
}

.primary-link,
.text-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  font-size: 0.92rem;
  font-weight: 750;
  text-decoration: none;
}

.primary-link {
  gap: 10px;
  padding: 12px 20px;
  border-radius: 8px;
  color: var(--surface);
  background: var(--green);
  box-shadow: 0 10px 28px rgba(23, 107, 76, 0.18);
}

.primary-link:hover {
  background: #0e563c;
}

.text-link {
  border-bottom: 1px solid currentColor;
}

.signal-panel {
  position: relative;
  min-height: 510px;
  padding: 36px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 28px;
  color: var(--surface);
  background: #15382d;
  box-shadow: var(--shadow);
}

.signal-panel::before {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 38px 38px;
  content: "";
}

.signal-orbit {
  position: relative;
  display: grid;
  width: 230px;
  height: 230px;
  margin: 6px auto 38px;
  place-items: center;
}

.signal-core,
.orbit {
  position: absolute;
  border-radius: 50%;
}

.signal-core {
  display: grid;
  width: 82px;
  height: 82px;
  z-index: 2;
  place-items: center;
  color: var(--ink);
  background: var(--green-bright);
  font-size: 1.05rem;
  font-weight: 850;
  letter-spacing: 0.08em;
}

.orbit {
  border: 1px solid rgba(255, 255, 255, 0.24);
}

.orbit::after {
  position: absolute;
  top: 50%;
  right: -5px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--amber);
  content: "";
}

.orbit-one {
  width: 158px;
  height: 158px;
}

.orbit-two {
  width: 224px;
  height: 224px;
  border-style: dashed;
}

.orbit-two::after {
  top: 18%;
  right: 16px;
  background: var(--green-bright);
}

.signal-list {
  position: relative;
  z-index: 2;
  margin: 0;
}

.signal-list div {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 16px;
  padding: 15px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.signal-list dt {
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.signal-list dd {
  margin: 0;
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.82rem;
}

.status-section,
.lanes-section {
  padding: 110px 0;
  border-top: 1px solid var(--line);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 54px;
}

.status-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.status-card {
  min-height: 285px;
  padding: clamp(28px, 5vw, 48px);
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface);
}

.status-card-ready {
  background: var(--green-pale);
}

.status-card-planned {
  border-style: dashed;
}

.card-label,
.lane-state {
  margin: 0 0 26px;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.status-card-ready .card-label,
.lane-state-ready {
  color: var(--green);
}

.status-card p:last-child,
.lane-card p:last-child {
  margin-bottom: 0;
  color: var(--muted);
}

.lane-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.lane-card {
  position: relative;
  min-height: 390px;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 253, 247, 0.7);
}

.lane-card-accent {
  color: var(--surface);
  background: var(--green);
}

.lane-card-accent p,
.lane-card-accent .lane-state {
  color: rgba(255, 255, 255, 0.78);
}

.lane-number {
  display: block;
  margin-bottom: 52px;
  color: rgba(19, 35, 29, 0.32);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.lane-card-accent .lane-number {
  color: rgba(255, 255, 255, 0.5);
}

.lane-question {
  min-height: 56px;
  margin: 0 0 20px;
  font-weight: 750;
}

.closing {
  margin: 26px 0 110px;
  padding: clamp(40px, 8vw, 90px);
  border-radius: 26px;
  background: var(--green-pale);
}

.closing h2,
.closing > p:not(.eyebrow) {
  max-width: 780px;
}

.closing > p:not(.eyebrow) {
  margin: 26px 0 34px;
  color: var(--muted);
}

.primary-link-dark {
  background: var(--ink);
}

.primary-link-dark:hover {
  background: #294139;
}

.site-footer {
  display: flex;
  gap: 30px;
  align-items: center;
  justify-content: space-between;
  padding: 32px 0 48px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.78rem;
}

.site-footer p {
  margin: 0;
}

.site-footer strong {
  margin-right: 10px;
  color: var(--ink);
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .signal-panel {
    width: min(100%, 540px);
  }

  .lane-grid {
    grid-template-columns: 1fr;
  }

  .lane-card {
    min-height: auto;
  }

  .lane-number {
    margin-bottom: 34px;
  }

  .lane-question {
    min-height: auto;
  }
}

@media (max-width: 620px) {
  .site-header,
  main,
  .site-footer {
    width: min(100% - 32px, 1180px);
  }

  .site-header {
    min-height: 76px;
  }

  .brand {
    font-size: 0;
  }

  .brand-mark {
    font-size: 0.72rem;
  }

  .status-badge {
    padding-inline: 11px;
    font-size: 0.68rem;
  }

  .hero {
    gap: 54px;
    padding: 70px 0 82px;
  }

  h1 {
    font-size: clamp(2.35rem, 12vw, 3.25rem);
  }

  h1 br {
    display: none;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .primary-link,
  .text-link {
    width: 100%;
  }

  .signal-panel {
    min-height: 480px;
    padding: 26px 22px;
  }

  .signal-list div {
    grid-template-columns: 78px 1fr;
    gap: 10px;
  }

  .status-section,
  .lanes-section {
    padding: 82px 0;
  }

  .status-grid {
    grid-template-columns: 1fr;
  }

  .status-card,
  .lane-card {
    padding: 28px 24px;
  }

  .closing {
    margin-bottom: 80px;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }
}

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