:root {
  --bg: #f7f3ea;
  --bg2: #e9dfca;
  --ink: #221c15;
  --accent: #855700;
  --card: rgba(255, 255, 255, 0.85);
  --line: rgba(34, 28, 21, 0.15);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  background:
    radial-gradient(circle at 12% 10%, #fff8ed 0, transparent 40%),
    radial-gradient(circle at 88% 85%, #f0d7a4 0, transparent 34%),
    linear-gradient(135deg, var(--bg), var(--bg2));
  padding: 24px;
  padding-bottom: 92px;
}

main {
  max-width: 1120px;
  margin: 0 auto;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 20px;
  box-shadow: 0 20px 42px rgba(26, 20, 10, 0.1);
}

.topbar {
  display: none;
}

.hamburger {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.75);
  color: var(--accent);
  padding: 8px 12px;
  border-radius: 8px;
  font-weight: 700;
  cursor: pointer;
}

.layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 24px;
}

.sidebar {
  border-right: 1px solid var(--line);
  padding-right: 16px;
}

.menu {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.nav-link {
  color: var(--accent);
  font-weight: 700;
  text-decoration: none;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.55);
}

.nav-link.active {
  border-color: #b98522;
  background: #fff4dc;
}

.submenu {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-left: 18px;
  padding-left: 12px;
  border-left: 2px solid var(--line);
}

.submenu .nav-link {
  font-size: 0.96rem;
}

a:hover {
  text-decoration: underline;
}

.breadcrumb {
  margin: 0 0 16px;
  font-size: 0.95rem;
  color: #5a4b3c;
}

.subnav {
  margin: 0 0 20px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.55);
}

h1 {
  margin: 0 0 10px;
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  line-height: 1.1;
}

.subtitle {
  margin: 0 0 20px;
  color: #4e3f31;
  font-size: clamp(1rem, 2vw, 1.15rem);
}

h2 {
  margin: 22px 0 8px;
  font-size: 1.25rem;
  color: #3d3024;
}

p {
  margin: 0 0 14px;
  white-space: pre-line;
  line-height: 1.55;
  color: #2f261d;
}

.section {
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.section:last-of-type {
  border-bottom: none;
  padding-bottom: 0;
}

.links {
  margin: 22px 0 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.55);
}

.thumb {
  margin: 0 0 22px;
}

.thumb img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  border: 1px solid var(--line);
  display: block;
}

.platforms {
  margin: 0 0 24px;
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 12px;
  margin-top: 10px;
}

.platform-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.6);
  color: #3f3225;
  text-decoration: none;
  font-weight: 700;
}

.platform-card img {
  width: 28px;
  height: 28px;
  display: block;
}

.callout {
  font-weight: 700;
  color: #4a2f00;
}

.legal-footer {
  text-align: center;
  margin-top: 12px;
  color: #6f4700;
}

.legal-footer a {
  color: #6f4700;
  font-weight: 700;
  text-decoration: none;
}

.legal-footer a:hover {
  text-decoration: underline;
}

.bottom-nav {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1000;
  display: flex;
  justify-content: center;
  gap: 12px;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.92);
  border-top: 1px solid var(--line);
  backdrop-filter: blur(6px);
}

.bottom-nav a,
.bottom-nav span {
  display: inline-block;
  min-width: 140px;
  text-align: center;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  background: #fff7e8;
  color: #6f4700;
}

.bottom-nav span {
  opacity: 0.45;
}

@media (max-width: 900px) {
  body {
    padding: 12px;
    padding-bottom: 92px;
  }

  .topbar {
    display: block;
    margin-bottom: 12px;
  }

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

  .sidebar {
    display: none;
    border-right: none;
    border-bottom: 1px solid var(--line);
    padding-right: 0;
    padding-bottom: 12px;
    margin-bottom: 10px;
  }

  body.nav-open .sidebar {
    display: block;
  }
}