:root {
  --primary: #176b62;
  --primary-hover: #104f49;
  --text-main: #202c2a;
  --text-muted: #586966;
  --bg-page: #edf3f1;
  --bg-card: #ffffff;
  --border-color: #d4dfdc;
  --accent-info: #e8f4f1;
  --accent-info-border: #32877b;
  --accent-warn: #fff4df;
  --accent-warn-border: #d39735;
}

* {
  box-sizing: border-box;
}

body {
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg-page);
  color: var(--text-main);
  line-height: 1.65;
  margin: 0;
  padding: 48px 20px;
}

.container {
  max-width: 920px;
  margin: 0 auto;
  background: var(--bg-card);
  padding: 48px 56px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  box-shadow: 0 12px 36px rgba(25, 58, 52, 0.08);
}

.top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.badge {
  background-color: #f0f3f6;
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 4px 10px;
  border-radius: 20px;
  border: 1px solid var(--border-color);
}

.lang-switch {
  display: flex;
  gap: 8px;
}

.lang-switch a {
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  background: #ffffff;
  transition: all 0.15s ease-in-out;
}

.lang-switch a:hover {
  color: var(--primary);
  border-color: var(--primary);
}

.lang-switch a.active {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

h1 {
  font-size: 2.1rem;
  color: var(--text-main);
  margin: 0 0 10px 0;
  font-weight: 700;
  line-height: 1.25;
}

.lead {
  font-size: 1.12rem;
  color: var(--text-muted);
  margin: 0 0 24px 0;
}

hr {
  border: 0;
  height: 1px;
  background: var(--border-color);
  margin: 28px 0;
}

h2 {
  font-size: 1.4rem;
  color: var(--text-main);
  margin: 36px 0 14px 0;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
}

h3 {
  font-size: 1.15rem;
  color: var(--text-main);
  margin: 24px 0 10px 0;
}

p, ul, ol {
  margin: 0 0 16px 0;
}

ul, ol {
  padding-left: 24px;
}

li {
  margin-bottom: 8px;
}

code {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  background-color: #f3f4f6;
  color: var(--primary-hover);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
  border: 1px solid #e2e4e8;
}

pre {
  background-color: #1e2624;
  color: #e6f0ed;
  padding: 16px 20px;
  border-radius: 6px;
  overflow-x: auto;
  font-size: 0.88rem;
  line-height: 1.5;
  margin: 14px 0 20px 0;
  border: 1px solid #2d3b38;
}

pre code {
  background-color: transparent;
  color: inherit;
  padding: 0;
  border: none;
  font-size: inherit;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.step-image {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 16px 0 24px 0;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
}

.callout {
  padding: 16px 20px;
  border-radius: 6px;
  margin: 22px 0;
  font-size: 0.95rem;
}

.callout-info {
  background-color: var(--accent-info);
  border-left: 4px solid var(--accent-info-border);
}

.callout-info strong {
  color: #0550ae;
  display: inline;
}

.callout-warning {
  background-color: var(--accent-warn);
  border-left: 4px solid var(--accent-warn-border);
}

.callout-warning strong {
  color: #7d4e00;
  display: inline;
}

.license-box {
  margin-top: 44px;
  padding: 24px 26px;
  background-color: #f7faf9;
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--primary);
  border-radius: 6px;
}

.license-box h3 {
  margin: 0 0 12px 0;
  font-size: 1.15rem;
  color: var(--text-main);
}

.license-box p {
  margin: 0 0 10px 0;
  font-size: 0.93rem;
  color: var(--text-muted);
}

.license-box p:last-child {
  margin-bottom: 0;
}

.license-box strong {
  color: var(--text-main);
}

@media screen and (max-width: 640px) {
  body {
    padding: 16px 12px;
  }
  .container {
    padding: 24px 20px;
  }
  .top-bar {
    align-items: flex-start;
    gap: 12px;
    flex-wrap: wrap;
  }
  h1 {
    font-size: 1.8rem;
  }
  .callout {
    padding: 14px 16px;
  }
  .license-box {
    padding: 18px;
  }
}

@media print {
  body {
    background: #ffffff !important;
    padding: 0 !important;
  }
  .container {
    box-shadow: none !important;
    border: none !important;
    padding: 0 !important;
    max-width: 100% !important;
  }
  .top-bar {
    display: none !important;
  }
  pre {
    background-color: #f5f5f5 !important;
    color: #222222 !important;
    border: 1px solid #cccccc !important;
    page-break-inside: avoid;
  }
  .step-image {
    page-break-inside: avoid;
    max-height: 380px;
    object-fit: contain;
  }
  .callout, .license-box {
    page-break-inside: avoid;
  }
  h2, h3 {
    page-break-after: avoid;
  }
}