:root {
  --green-900: #173f2a;
  --green-800: #245237;
  --green-700: #2f6846;
  --green-100: #e8f2ea;
  --earth-700: #6b5135;
  --earth-200: #efe3d0;
  --earth-100: #f8f3ea;
  --yellow-300: #f4cf68;
  --yellow-100: #fff5cf;
  --ink: #1d2520;
  --muted: #5d6b62;
  --line: #d9e1d8;
  --white: #ffffff;
  --shadow: 0 18px 42px rgba(23, 63, 42, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: light;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--earth-100);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

a {
  color: var(--green-800);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--green-900);
}

.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
}

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

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 78px;
  padding: 12px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--green-900);
  font-weight: 800;
  font-size: 1.22rem;
  text-decoration: none;
  white-space: nowrap;
}

.brand img {
  width: 44px;
  height: 44px;
  object-fit: contain;
}

.main-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 6px;
}

.main-nav a {
  border-radius: 6px;
  color: var(--green-900);
  font-size: 0.94rem;
  font-weight: 650;
  padding: 8px 10px;
  text-decoration: none;
}

.main-nav a:hover,
.main-nav a[aria-current="page"] {
  background: var(--green-100);
}

.hero {
  background:
    linear-gradient(135deg, rgba(23, 63, 42, 0.94), rgba(47, 104, 70, 0.88)),
    var(--green-800);
  color: var(--white);
  padding: 92px 0 66px;
}

.hero .section {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(260px, 0.65fr);
  align-items: center;
  gap: 36px;
}

.hero h1 {
  font-size: 4.8rem;
  line-height: 1;
  margin: 0 0 18px;
}

.hero p {
  color: #f5fbf4;
  font-size: 1.28rem;
  max-width: 780px;
  margin: 0;
}

.hero-logo {
  display: flex;
  justify-content: center;
}

.hero-logo img {
  width: min(190px, 46vw);
  height: auto;
  filter: drop-shadow(0 22px 24px rgba(0, 0, 0, 0.24));
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.panel-actions {
  margin-top: 20px;
}

.panel-actions .button {
  color: var(--green-900);
}

.button {
  align-items: center;
  border: 2px solid transparent;
  border-radius: 6px;
  display: inline-flex;
  font-weight: 750;
  justify-content: center;
  min-height: 46px;
  padding: 10px 16px;
  text-decoration: none;
}

.button.primary {
  background: var(--yellow-300);
  color: var(--green-900);
}

.button.secondary {
  background: var(--white);
  color: var(--green-900);
}

.button.ghost {
  border-color: rgba(255, 255, 255, 0.72);
  color: var(--white);
}

.button.outline {
  border-color: var(--green-700);
  color: var(--green-900);
}

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

.section {
  padding: 44px 0;
}

.section.compact {
  padding-top: 30px;
}

.page-title {
  background: var(--green-800);
  color: var(--white);
  padding: 42px 0;
}

.page-title h1 {
  font-size: 2.6rem;
  line-height: 1.08;
  margin: 0 0 10px;
}

.page-title p {
  color: #eef8ee;
  font-size: 1.12rem;
  margin: 0;
  max-width: 780px;
}

.grid {
  display: grid;
  gap: 18px;
}

.grid.cards {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card,
.notice,
.steps,
.text-panel {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.card {
  padding: 22px;
}

.card h2,
.card h3 {
  color: var(--green-900);
  line-height: 1.2;
  margin: 0 0 10px;
}

.card p {
  margin: 0;
}

.notice {
  border-left: 6px solid var(--yellow-300);
  padding: 22px 24px;
}

.notice h2,
.notice h3 {
  color: var(--green-900);
  margin: 0 0 10px;
}

.notice p,
.notice ul {
  margin-bottom: 0;
}

.text-panel {
  padding: 28px;
}

.text-panel h2 {
  color: var(--green-900);
  line-height: 1.25;
  margin: 0 0 14px;
}

.text-panel h3 {
  color: var(--green-900);
  margin-top: 28px;
}

.text-panel p:last-child,
.text-panel ul:last-child,
.text-panel ol:last-child {
  margin-bottom: 0;
}

.steps {
  counter-reset: step;
  list-style: none;
  margin: 0;
  padding: 10px;
}

.steps li {
  border-bottom: 1px solid var(--line);
  counter-increment: step;
  display: grid;
  gap: 4px;
  grid-template-columns: 42px minmax(0, 1fr);
  padding: 16px 10px;
}

.steps li:last-child {
  border-bottom: 0;
}

.steps li::before {
  align-items: center;
  background: var(--green-800);
  border-radius: 50%;
  color: var(--white);
  content: counter(step);
  display: inline-flex;
  font-weight: 800;
  height: 32px;
  justify-content: center;
  margin-top: 2px;
  width: 32px;
}

.steps strong {
  color: var(--green-900);
}

.code,
code {
  background: var(--yellow-100);
  border: 1px solid #ead78e;
  border-radius: 5px;
  color: #493812;
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  font-size: 0.94em;
  padding: 0.08rem 0.28rem;
}

.code {
  display: block;
  margin: 10px 0;
  overflow-wrap: anywhere;
  padding: 12px;
}

.site-footer {
  background: var(--green-900);
  color: #edf7ee;
  margin-top: 36px;
  padding: 30px 0;
}

.footer-inner {
  display: grid;
  gap: 16px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
}

.site-footer a {
  color: #fff6d2;
}

.fine-print {
  color: #cfe3d3;
  font-size: 0.94rem;
  margin: 0;
}

@media (max-width: 900px) {
  .header-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .main-nav {
    justify-content: flex-start;
  }

  .hero .section {
    grid-template-columns: 1fr;
  }

  .hero-logo {
    justify-content: flex-start;
  }

  .hero h1 {
    font-size: 4.1rem;
  }

  .grid.cards,
  .grid.three {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .header-inner,
  .section,
  .footer-inner {
    width: min(100% - 24px, 1120px);
  }

  .hero {
    padding: 58px 0 46px;
  }

  .hero h1 {
    font-size: 3rem;
  }

  .hero-logo {
    display: none;
  }

  .hero p,
  .page-title p {
    font-size: 1.04rem;
  }

  .grid.cards,
  .grid.two,
  .grid.three {
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }

  .main-nav a {
    padding: 7px 8px;
  }
}