:root {
  --ink: #1a1d23;
  --ink-soft: #5a6270;
  --bg: #fafafa;
  --card: #ffffff;
  --border: #e4e6eb;
  --accent: #2f5fed;
  --accent-ink: #ffffff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.5;
}

.site-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--card);
}

.brand {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--ink);
  text-decoration: none;
}

.brand-sub {
  display: block;
  font-weight: 400;
  font-size: 0.8rem;
  color: var(--ink-soft);
}

.container {
  max-width: 780px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

.site-footer {
  text-align: center;
  color: var(--ink-soft);
  font-size: 0.85rem;
  padding: 24px;
}

.hero h1 { margin-bottom: 4px; }
.hero p { color: var(--ink-soft); margin-top: 0; }

.back {
  display: inline-block;
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.9rem;
  margin-bottom: 16px;
}
.back:hover { color: var(--accent); }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.card {
  display: block;
  padding: 18px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  text-decoration: none;
  color: var(--ink);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.card:hover {
  border-color: var(--accent);
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
}

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card h2 { margin: 0; font-size: 1.05rem; }
.tagline { color: var(--ink-soft); margin: 6px 0; }

.badge {
  display: inline-block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--ink-soft);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 2px 8px;
}
.badge-lock { border: none; padding: 0; font-size: 0.9rem; }

.empty { color: var(--ink-soft); }

.prose { margin-top: 20px; }
.prose h2, .prose h3 { margin-top: 1.6em; }
.prose pre {
  background: #10131a;
  color: #e6e8ee;
  padding: 14px;
  border-radius: 8px;
  overflow-x: auto;
}
.prose code {
  background: #eef0f4;
  padding: 1px 5px;
  border-radius: 4px;
  font-size: 0.9em;
}
.prose pre code { background: none; padding: 0; }

.resource-list {
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.resource {
  display: flex;
  gap: 12px;
  padding: 14px 16px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  align-items: flex-start;
}

.resource-icon { font-size: 1.1rem; line-height: 1.4; }

.resource-title {
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
}
.resource-title:hover { color: var(--accent); }

.resource-desc {
  margin: 4px 0 0;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.unlock-box {
  max-width: 380px;
  margin: 40px auto 0;
  text-align: center;
}
.unlock-box form {
  display: flex;
  gap: 8px;
  margin-top: 20px;
}
.unlock-box input[type="password"] {
  flex: 1;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
}
.unlock-box button {
  padding: 10px 18px;
  border: none;
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 600;
  cursor: pointer;
}
.unlock-box button:hover { opacity: 0.9; }
.form-error { color: #c0392b; margin-top: 12px; }

.contact { color: var(--ink-soft); font-size: 0.9rem; margin-top: 32px; }