:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --max-width: 44rem;
  --text: #e8eaed;
  --muted: #9aa0a6;
  --border: #2a2f36;
  --accent: #5b9dff;
  --bg: #0f1216;
  --card: #171b21;
}

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

body {
  font-family: var(--font-sans);
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 1rem 4rem;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 1rem;
  margin-bottom: 2rem;
}

.brand {
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  text-decoration: none;
  font-size: 1.15rem;
}
.brand:hover { text-decoration: none; color: var(--accent); }

nav { display: flex; gap: 1rem; flex-wrap: wrap; font-size: 0.95rem; }

.hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 0.75rem;
}

.hero p { color: var(--muted); font-size: 1.05rem; margin-bottom: 1.25rem; }

.cta-row { display: flex; gap: 0.75rem; flex-wrap: wrap; margin: 1.25rem 0 2rem; }

.btn {
  display: inline-block;
  padding: 0.65rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
}
.btn:hover { border-color: var(--accent); text-decoration: none; }
.btn-primary { background: var(--accent); color: #0b1020; border-color: var(--accent); }

.meta { color: var(--muted); font-size: 0.9rem; margin-bottom: 0.75rem; }

.post-grid { display: grid; gap: 1rem; margin-top: 1rem; }

.post-card {
  display: block;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.1rem 1.2rem;
  color: var(--text);
  text-decoration: none;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.post-card:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
  text-decoration: none;
}
.post-card h2 { font-size: 1.15rem; margin-bottom: 0.35rem; letter-spacing: -0.02em; }
.post-card .post-excerpt { color: var(--muted); font-size: 0.95rem; }

.packages {
  display: grid;
  gap: 1rem;
  margin: 1.25rem 0 2rem;
}
@media (min-width: 720px) {
  .packages { grid-template-columns: repeat(3, 1fr); }
}

.package {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.1rem;
}
.package h3 { margin-bottom: 0.35rem; }
.price { font-size: 1.4rem; font-weight: 700; margin: 0.4rem 0 0.7rem; }
.package ul { margin-left: 1.1rem; color: var(--muted); }
.package li { margin-bottom: 0.35rem; }

article { margin-top: 0.5rem; }
article h1 {
  font-size: clamp(1.7rem, 3.5vw, 2.2rem);
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 0.5rem;
}
article .date { color: var(--muted); display: block; margin-bottom: 1.5rem; }
article h2 {
  font-size: 1.25rem;
  margin: 1.8rem 0 0.7rem;
  letter-spacing: -0.02em;
}
article p { margin-bottom: 1.1rem; font-size: 1.05rem; }
article ul, article ol { margin: 0 0 1.1rem 1.25rem; }
article li { margin-bottom: 0.4rem; }
article code, pre code { font-family: var(--font-mono); font-size: 0.92em; }
article pre {
  background: #0a0d11;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.9rem 1rem;
  overflow-x: auto;
  margin-bottom: 1.1rem;
}
.note {
  border-left: 3px solid var(--accent);
  padding: 0.6rem 0.9rem;
  background: #12161c;
  color: var(--muted);
  margin: 1rem 0 1.25rem;
}

footer {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9rem;
}