:root {
  --bg-color: #fbfbf8;
  --text-color: #101419;
  --muted-color: #58616d;
  --accent-color: #0b8f86;
  --lime-color: #bfff3a;
  --violet-color: #6d5df6;
  --amber-color: #d9941d;
  --glass-bg: rgba(251, 251, 248, 0.92);
  --glass-border: rgba(16, 20, 25, 0.12);
  --card-bg: #ffffff;
  --subtle-bg: #f4f4ef;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg-color);
  color: var(--text-color);
  font-family: var(--font-family);
  line-height: 1.6;
  overflow-x: hidden;
}

header {
  position: fixed;
  top: 0;
  width: 100%;
  min-height: 78px;
  padding: 14px 28px;
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--glass-border);
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
}

.logo-container {
  display: flex;
  align-items: center;
  min-width: 0;
  gap: 12px;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
}

.logo {
  height: 28px;
  width: auto;
  object-fit: contain;
}

.awol-logo {
  height: 34px;
}

.logo-divider {
  width: 1px;
  height: 28px;
  background: var(--glass-border);
  display: inline-block;
}

.version-pill {
  min-height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 9px;
  border-radius: 999px;
  color: var(--text-color);
  text-decoration: none;
  font-size: 0.74rem;
  font-weight: 700;
  opacity: 0.68;
  white-space: nowrap;
}

.version-switcher {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px;
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
}

.version-pill.active,
.version-pill:hover {
  opacity: 1;
  color: var(--text-color);
  background: var(--lime-color);
}

nav ul {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 8px;
}

nav a {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 11px;
  border-radius: 8px;
  color: var(--muted-color);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 700;
  transition: background 0.2s ease, color 0.2s ease;
  cursor: pointer;
  white-space: nowrap;
}

nav a.active,
nav a:hover {
  color: var(--text-color);
  background: rgba(16, 20, 25, 0.06);
}

nav a.demo-link {
  color: var(--text-color);
  background: var(--lime-color);
  border: 1px solid rgba(16, 20, 25, 0.16);
}

.hamburger {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  background: var(--card-bg);
  padding: 9px;
  cursor: pointer;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  margin: 5px 0;
  border-radius: 2px;
  background: var(--text-color);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

main {
  margin-top: 78px;
  min-height: calc(100vh - 78px - 72px);
}

.section {
  display: none;
  max-width: 1180px;
  margin: 0 auto;
  padding: 28px 20px;
  animation: fadeIn 0.35s ease-out;
}

.section.active {
  display: block;
}

#architecture-map-section.active {
  display: block;
  max-width: none;
  width: 100%;
  padding: 0;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.markdown-container {
  background: var(--card-bg);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  box-shadow: 0 18px 45px rgba(16, 20, 25, 0.08);
  padding: 42px;
}

.markdown-container h1 {
  margin-bottom: 24px;
  font-size: 3.2rem;
  line-height: 1;
  letter-spacing: 0;
}

.markdown-container h2 {
  margin: 36px 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--glass-border);
  font-size: 2rem;
  line-height: 1.08;
  letter-spacing: 0;
}

.markdown-container h3 {
  margin: 24px 0 10px;
  font-size: 1.28rem;
  line-height: 1.2;
  letter-spacing: 0;
}

.markdown-container p {
  margin-bottom: 18px;
  color: var(--muted-color);
}

.markdown-container strong {
  color: var(--text-color);
}

.markdown-container ul,
.markdown-container ol {
  margin: 0 0 22px 22px;
}

.markdown-container li {
  margin: 8px 0;
}

.markdown-container blockquote {
  margin: 22px 0;
  padding: 18px 20px;
  border-left: 5px solid var(--lime-color);
  background: var(--subtle-bg);
  border-radius: 0 8px 8px 0;
  font-weight: 700;
}

.markdown-container code {
  background: rgba(16, 20, 25, 0.06);
  padding: 2px 5px;
  border-radius: 4px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.9em;
}

.markdown-container table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 0.94rem;
}

.markdown-container th,
.markdown-container td {
  padding: 12px;
  border: 1px solid var(--glass-border);
  text-align: left;
  vertical-align: top;
}

.markdown-container th {
  background: var(--subtle-bg);
}

#markmap-container {
  position: relative;
  width: 100%;
  height: calc(100vh - 78px);
  overflow: hidden;
  background: var(--card-bg);
}

#markmap-svg {
  width: 100%;
  height: 100%;
}

#markmap-container .markmap-toolbar {
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  box-shadow: 0 12px 30px rgba(16, 20, 25, 0.12);
}

.loading {
  min-height: 360px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted-color);
  font-size: 1rem;
  font-weight: 700;
}

footer {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-top: 1px solid var(--glass-border);
  background: var(--card-bg);
}

.footer-content {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--muted-color);
  font-size: 0.88rem;
}

.footer-content a {
  color: var(--text-color);
  font-weight: 800;
  text-decoration: none;
}

body.map-active footer {
  display: none;
}

@media (max-width: 920px) {
  header {
    min-height: 70px;
    padding: 12px 16px;
  }

  main {
    margin-top: 70px;
    min-height: calc(100vh - 70px - 72px);
  }

  .logo-container {
    gap: 8px;
  }

  .version-switcher {
    padding: 2px;
  }

  .version-pill {
    min-height: 26px;
    padding: 3px 8px;
    font-size: 0.72rem;
  }

  .hamburger {
    display: block;
  }

  nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 12px;
    right: 12px;
    max-height: calc(100vh - 86px);
    overflow-y: auto;
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid var(--glass-border);
    border-radius: 0 0 8px 8px;
    box-shadow: 0 20px 42px rgba(16, 20, 25, 0.16);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
  }

  nav.nav-active {
    display: block;
  }

  nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 0;
  }

  nav li {
    border-bottom: 1px solid rgba(16, 20, 25, 0.08);
  }

  nav li:last-child {
    border-bottom: 0;
  }

  nav a {
    min-height: 52px;
    justify-content: flex-start;
    width: 100%;
    padding: 15px 18px;
    border-radius: 0;
    background: transparent;
    color: var(--text-color);
    font-size: 0.96rem;
    font-weight: 800;
  }

  nav a.active,
  nav a:hover {
    background: var(--subtle-bg);
    color: var(--text-color);
    box-shadow: inset 4px 0 0 var(--lime-color);
  }

  nav a.demo-link {
    border: 0;
    background: transparent;
    color: var(--accent-color);
  }

  nav a.demo-link::after {
    content: "";
    width: 7px;
    height: 7px;
    margin-left: auto;
    border-top: 2px solid currentColor;
    border-right: 2px solid currentColor;
    transform: rotate(45deg);
  }

  nav a.demo-link:hover {
    background: var(--subtle-bg);
  }

  .markdown-container {
    padding: 28px;
  }

  .markdown-container h1 {
    font-size: 2.45rem;
  }

  .markdown-container h2 {
    font-size: 1.65rem;
  }

  #markmap-container {
    height: calc(100vh - 70px);
  }
}

@media (max-width: 640px) {
  .logo {
    height: 22px;
  }

  .awol-logo {
    height: 26px;
  }

  .section {
    padding: 16px 14px;
  }

  .markdown-container {
    padding: 22px;
  }

  .markdown-container h1 {
    font-size: 2rem;
  }

  .markdown-container h2 {
    font-size: 1.38rem;
  }

  .markdown-container table {
    display: block;
    overflow-x: auto;
  }
}