:root {
  --board: #3D3229;
  --board-texture: #473A2F;
  --ink: #2B2B2B;
  --accent: #FFE066;
  --pin: #8B1A1A;
  --text: #EDE6DE;
  --text-muted: #B3A79A;
}

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--board-texture);
  background-image:
    radial-gradient(circle at 20% 15%, rgba(255, 255, 255, 0.035) 0%, transparent 55%),
    radial-gradient(circle at 80% 70%, rgba(0, 0, 0, 0.18) 0%, transparent 60%);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.wrap {
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 20px 32px;
  flex: 1 0 auto;
}

.hero {
  text-align: center;
}

.app-icon {
  width: 104px;
  height: 104px;
  max-width: 40vw;
  border-radius: 23%;
  display: block;
  margin: 0 auto 22px;
  box-shadow: 0 10px 32px rgba(0, 0, 0, 0.45);
}

h1 {
  font-size: clamp(1.7rem, 6vw, 2.4rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: #FFFFFF;
  overflow-wrap: break-word;
}

.tagline {
  color: var(--accent);
  font-size: clamp(0.95rem, 3.4vw, 1.1rem);
  font-weight: 500;
  margin-top: 10px;
  overflow-wrap: break-word;
}

.lede {
  color: var(--text-muted);
  margin-top: 18px;
  overflow-wrap: break-word;
}

.cta {
  display: inline-block;
  margin-top: 30px;
  padding: 14px 30px;
  background: var(--accent);
  color: var(--ink);
  font-weight: 600;
  font-size: 0.98rem;
  text-decoration: none;
  border-radius: 12px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.35);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  max-width: 100%;
}

.cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 9px 24px rgba(0, 0, 0, 0.45);
}

.cta[aria-disabled="true"] {
  background: rgba(255, 224, 102, 0.18);
  color: var(--accent);
  cursor: default;
  box-shadow: none;
}

.cta[aria-disabled="true"]:hover {
  transform: none;
  box-shadow: none;
}

.features {
  list-style: none;
  margin-top: 46px;
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
}

.features li {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 12px;
  padding: 16px 18px;
  font-size: 0.94rem;
  color: var(--text-muted);
  overflow-wrap: break-word;
}

.features strong {
  display: block;
  color: var(--text);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.doc {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 14px;
  padding: clamp(22px, 5vw, 38px);
}

.doc h2 {
  font-size: 1.05rem;
  color: var(--accent);
  margin: 26px 0 6px;
  font-weight: 600;
  overflow-wrap: break-word;
}

.doc h2:first-of-type {
  margin-top: 0;
}

.doc p {
  color: var(--text-muted);
  margin-bottom: 14px;
  overflow-wrap: break-word;
}

.doc ul {
  color: var(--text-muted);
  margin: 0 0 14px 20px;
}

.doc li {
  margin-bottom: 8px;
  overflow-wrap: break-word;
}

.doc a {
  color: var(--accent);
}

.updated {
  color: #8E8378;
  font-size: 0.85rem;
  margin-bottom: 24px;
}

.back {
  display: inline-block;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  margin-bottom: 24px;
}

.back:hover {
  color: var(--accent);
}

.page-title {
  font-size: clamp(1.5rem, 5.5vw, 2rem);
  color: #FFFFFF;
  margin-bottom: 6px;
  overflow-wrap: break-word;
}

.doc-links {
  margin-top: 46px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  justify-content: center;
}

.doc-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.92rem;
  border-bottom: 1px solid transparent;
}

.doc-links a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

footer {
  flex-shrink: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: 56px;
  padding: 26px 20px 34px;
  text-align: center;
}

.ttech-mark {
  height: 22px;
  width: auto;
  max-width: 60%;
  opacity: 0.75;
  margin-bottom: 14px;
}

footer p {
  color: #8E8378;
  font-size: 0.78rem;
  line-height: 1.7;
  max-width: 620px;
  margin: 0 auto;
  overflow-wrap: break-word;
}

footer a {
  color: #A79B8E;
}

@media (max-width: 480px) {
  .wrap {
    padding-top: 36px;
  }

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