:root {
  --bg: #111111;
  --bg-card: #181818;
  --bg-subtle: #222222;
  --border: #282828;
  --accent: #e8452c;
  --accent-hover: #ff573b;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --heading: #ffffff;
}

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

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover, a:focus {
  color: var(--accent-hover);
  text-decoration: underline;
}

.container {
  max-width: 820px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

header {
  border-bottom: 2px solid var(--border);
  padding: 1.25rem 0;
  margin-bottom: 2rem;
  background-color: #0d0d0d;
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.logo {
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--heading);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.logo-dot {
  color: var(--accent);
}

nav ul {
  list-style: none;
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

nav a {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.95rem;
}

nav a:hover, nav a.active {
  color: var(--heading);
  text-decoration: none;
}

main {
  min-height: 60vh;
}

h1, h2, h3, h4 {
  color: var(--heading);
  line-height: 1.25;
  margin-bottom: 0.75rem;
  font-weight: 700;
}

h1 {
  font-size: 2.25rem;
  margin-bottom: 1rem;
}

h2 {
  font-size: 1.45rem;
  margin-top: 2rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border);
}

h3 {
  font-size: 1.15rem;
  margin-top: 1.4rem;
}

p {
  margin-bottom: 1rem;
}

ul, ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.4rem;
}

.hero {
  text-align: center;
  padding: 2rem 0 2.5rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2.5rem;
}

.hero h1 {
  font-size: 2.5rem;
  letter-spacing: -0.03em;
}

.hero .lead {
  font-size: 1.15rem;
  color: var(--text);
  max-width: 680px;
  margin: 0 auto 0.75rem;
}

.hero .lead-en {
  font-size: 1rem;
  color: var(--text-muted);
  font-style: italic;
  max-width: 640px;
  margin: 0 auto 1.5rem;
}

.store-badges {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

.store-badge {
  display: inline-block;
  padding: 0.65rem 1.25rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-muted);
  border-radius: 6px;
  font-size: 0.95rem;
  font-weight: 600;
  user-select: none;
}

.badge-tag {
  display: inline-block;
  background-color: #2a1614;
  color: var(--accent);
  border: 1px solid #5a2018;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.feature-list {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 2.5rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.feature-item {
  background-color: var(--bg-card);
  border-left: 3px solid var(--accent);
  padding: 1rem 1.25rem;
  border-radius: 0 6px 6px 0;
}

.feature-item strong {
  display: block;
  color: var(--heading);
  margin-bottom: 0.25rem;
  font-size: 1.05rem;
}

.meta-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 1rem 1.25rem;
  border-radius: 6px;
  font-size: 0.92rem;
  margin-bottom: 2rem;
  color: var(--text-muted);
}

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

.meta-box p {
  margin-bottom: 0.35rem;
}

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

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem;
  margin-bottom: 1.25rem;
}

.faq-q {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--heading);
  margin-bottom: 0.25rem;
}

.faq-q-en {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.lang-section {
  margin-bottom: 3.5rem;
}

.lang-divider {
  border: 0;
  height: 1px;
  background: var(--border);
  margin: 3.5rem 0;
}

footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0 3.5rem;
  margin-top: 4rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  background-color: #1e1e1e;
  padding: 0.15rem 0.35rem;
  border-radius: 4px;
  font-size: 0.9em;
  color: #f1f5f9;
}