:root {
  --bg: #f8fafc;
  --card: #ffffff;
  --border: rgba(15, 23, 42, 0.1);
  --text: #0f172a;
  --muted: #475569;
  --teal: #0f766e;
  --teal-light: #f0fdf4;
  --accent-blue: #0284c7;
  --amber: #d97706;
}

html.dark {
  --bg: #0b0f19;
  --card: #111827;
  --border: rgba(248, 250, 252, 0.1);
  --text: #f8fafc;
  --muted: #94a3b8;
  --teal-light: rgba(15, 118, 110, 0.15);
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  padding: 2rem 1rem;
}

.container {
  position: relative;
  z-index: 1;
  max-width: 850px;
  margin: 0 auto;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 2.5rem;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.05);
}

.brand-lockup {
  margin: 0 0 1rem;
}

.brand-lockup img {
  display: block;
  width: 4rem;
  height: 4rem;
  border-radius: 1rem;
}

h1 {
  font-size: 2.2rem;
  color: var(--teal);
  margin-top: 0;
}

h2 {
  color: var(--teal);
  margin-top: 2rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.5rem;
}

h3 {
  color: var(--text);
}

a {
  color: var(--teal);
  text-decoration: none;
  font-weight: 500;
}

a:hover {
  text-decoration: underline;
}

.back-link {
  display: inline-block;
  margin-bottom: 1.5rem;
  color: var(--teal);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
}

.back-link:hover {
  text-decoration: underline;
}

p,
li {
  color: var(--muted);
  font-size: 0.95rem;
}

ul {
  padding-left: 1.2rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.feature-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1.25rem;
}

.feature-card h3 {
  margin: 0 0 0.5rem 0;
  font-size: 1.05rem;
  color: var(--teal);
}

.timeline {
  border-left: 2px solid var(--teal);
  padding-left: 1.5rem;
  margin-top: 1.5rem;
}

.timeline-item {
  margin-bottom: 1.5rem;
  position: relative;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -1.95rem;
  top: 0.25rem;
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 50%;
  background: var(--teal);
}

.badge,
.badge-done {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  background: rgba(15, 118, 110, 0.1);
  color: var(--teal);
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge {
  padding: 0.2rem 0.6rem;
  font-size: 0.8rem;
  margin-bottom: 1rem;
}

.badge-upcoming {
  background: rgba(2, 132, 199, 0.15);
  color: var(--accent-blue);
}

.disclaimer-box {
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: 0.75rem;
  padding: 1.2rem;
  margin: 1.5rem 0;
  color: #92400e;
  font-size: 0.9rem;
}

html.dark .disclaimer-box {
  background: rgba(217, 119, 6, 0.12);
  border-color: rgba(217, 119, 6, 0.35);
  color: #fbbf24;
}

.timeline-item h3 {
  margin: 0.2rem 0;
  font-size: 1rem;
  color: var(--text);
}

blockquote {
  margin: 0 0 1.5rem;
  padding: 0.75rem 1rem;
  border-left: 3px solid var(--teal);
  color: var(--muted);
  background: var(--bg);
  border-radius: 0 0.5rem 0.5rem 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0 1.5rem;
  font-size: 0.9rem;
}

th,
td {
  border: 1px solid var(--border);
  padding: 0.55rem 0.75rem;
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--bg);
  color: var(--text);
  font-weight: 600;
}

pre {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1rem;
  overflow-x: auto;
  white-space: pre-wrap;
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--text);
}

.page-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  margin: 0 0 1.5rem;
  font-size: 0.85rem;
}

.site-footer {
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--muted);
}

@keyframes pageCrossDrift {
  to {
    background-position: 72px 72px;
  }
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='72' height='72' viewBox='0 0 72 72'%3E%3Cpath fill='%230f766e' d='M31 14h10v17h17v10H41v17H31V41H14V31h17z'/%3E%3C/svg%3E");
  background-size: 72px 72px;
  animation: pageCrossDrift 48s linear infinite;
}

html.dark body::before {
  opacity: 0.08;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='72' height='72' viewBox='0 0 72 72'%3E%3Cpath fill='%2394a3b8' d='M31 14h10v17h17v10H41v17H31V41H14V31h17z'/%3E%3C/svg%3E");
}

@media (prefers-reduced-motion: reduce) {
  body::before {
    animation: none;
  }
}