:root {
  --bg: #111111;
  --bg-card: #1c1c1c;
  --green: #4a7c59;
  --green-light: #6ab07a;
  --text: #cccccc;
  --text-muted: #888888;
  --border: #333333;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

a { color: var(--green-light); text-decoration: none; }
a:hover { color: #fff; }

/* Nav */
.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-size: 1.1rem;
  font-weight: 900;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--green);
  text-decoration: none;
}

.nav-logo:hover { color: var(--green-light); }

.nav-link {
  font-size: 0.85rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-muted);
}

.nav-link:hover { color: var(--text); }

/* Main */
main { padding: 1.5rem; max-width: 900px; margin: 0 auto; }

/* Card grid */
.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 481px) {
  .card-grid { grid-template-columns: 1fr 1fr; }
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 3px;
  overflow: hidden;
  transition: border-color 0.15s;
}

.card:first-child { border-color: var(--green); }
.card:hover { border-color: var(--green); }

.card a { color: inherit; text-decoration: none; display: block; }

.card-image img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  display: block;
}

.card-image-placeholder {
  width: 100%;
  aspect-ratio: 16/9;
  background: #2a2a2a;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.75rem;
  letter-spacing: 1px;
}

.card-body { padding: 0.75rem; }

.card-day {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 0.25rem;
}

.card-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.25rem;
  line-height: 1.3;
}

.card-meta { font-size: 0.75rem; color: var(--text-muted); }

/* Single post */
.post-header { margin-bottom: 2rem; }

.post-day {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 0.5rem;
}

.post-title {
  font-size: 2rem;
  font-weight: 900;
  color: #fff;
  line-height: 1.1;
  margin-bottom: 0.5rem;
}

.post-meta { color: var(--text-muted); font-size: 0.85rem; }

.post-cover {
  width: 100%;
  max-height: 400px;
  object-fit: cover;
  border-radius: 3px;
  margin-bottom: 2rem;
}

.post-content { max-width: 640px; }
.post-content p { margin-bottom: 1.25rem; }

.post-content img {
  max-width: 100%;
  border-radius: 3px;
  margin: 1rem 0;
}

.post-content h2 {
  font-size: 1.25rem;
  color: #fff;
  margin: 2rem 0 0.75rem;
}

/* Specs */
.specs-header { margin-bottom: 2rem; }

.specs-title {
  font-size: 2rem;
  font-weight: 900;
  color: #fff;
  letter-spacing: 1px;
}

.specs-subtitle { color: var(--text-muted); font-size: 0.9rem; margin-top: 0.25rem; }

.specs-section { margin-bottom: 2.5rem; }

.specs-section-title {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--green);
  border-bottom: 1px solid var(--green);
  padding-bottom: 0.4rem;
  margin-bottom: 1rem;
}

.specs-row {
  display: flex;
  gap: 1rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}

.specs-key { flex: 0 0 140px; color: var(--text-muted); font-size: 0.8rem; }
.specs-value { color: var(--text); }

.specs-list { list-style: none; }

.specs-list li {
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}

.specs-list .item-name { color: #fff; font-weight: 600; }

.specs-list .item-date {
  font-size: 0.75rem;
  color: var(--green);
  letter-spacing: 1px;
  margin-left: 0.5rem;
}

.specs-list .item-desc { color: var(--text-muted); font-size: 0.85rem; margin-top: 0.2rem; }

.specs-severity {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 1px 5px;
  border-radius: 2px;
  margin-left: 0.4rem;
}

.severity-low    { background: #1a3a1a; color: #6ab07a; }
.severity-medium { background: #3a2a00; color: #c8960a; }
.severity-high   { background: #3a0a0a; color: #c84a4a; }

.specs-note { margin-bottom: 1.5rem; }
.specs-note-title { color: #fff; font-weight: 700; margin-bottom: 0.5rem; }
.specs-note-body { color: var(--text-muted); font-size: 0.9rem; line-height: 1.6; }