:root {
  --bg: #0b1020;
  --panel: #101827;
  --panel-2: #0f1a2c;
  --text: #e5e7eb;
  --muted: #a1a7b3;
  --faint: #8a93a3;
  --accent: #3b82f6;
  --accent-2: #22d3ee;
  --border: #1f2a40;
  --shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
  --radius: 12px;
  --max: 980px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  color: var(--text);
  font: 16px/1.65 system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(1200px 600px at 10% -10%, #1b2a4a 0%, transparent 60%),
              radial-gradient(1000px 500px at 110% 10%, #0d2a3d 0%, transparent 55%),
              linear-gradient(180deg, #0b1020 0%, #0a0f1a 60%, #0a0f18 100%);
  background-attachment: fixed;
  background-repeat: no-repeat;
  background-size: cover;
}

a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 24px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 16, 32, 0.85);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand .name {
  font-weight: 700;
  letter-spacing: 0.2px;
}

.brand .tagline {
  color: var(--muted);
  font-size: 13px;
}

.nav {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav a {
  display: inline-flex;
  padding: 10px 12px;
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--muted);
}

.nav a[aria-current="page"],
.nav a:hover {
  background: var(--panel);
  border-color: var(--border);
  color: var(--text);
  text-decoration: none;
}

.hero {
  margin-top: 18px;
  padding: 26px;
  border: 1px solid var(--border);
  background: var(--panel);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero h1 {
  margin: 0 0 8px;
  font-size: 34px;
  line-height: 1.2;
}

.hero p {
  margin: 0;
  color: var(--muted);
  max-width: 70ch;
}

.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 18px;
}

@media (min-width: 880px) {
  .grid.two { grid-template-columns: 1.25fr 0.75fr; }
}

.card {
  padding: 18px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--panel);
}

.card h2, .card h3 { margin-top: 0; }
.card p { color: var(--muted); }

.kbd {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 12px;
  padding: 2px 6px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  border-radius: 6px;
  color: var(--text);
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pill {
  display: inline-flex;
  align-items: center;
  padding: 7px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--muted);
  font-size: 13px;
}

.blog-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.blog {
  padding: 18px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--panel);
}

.blog .meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  color: var(--faint);
  font-size: 13px;
}

.blog h2 {
  margin: 10px 0 8px;
  font-size: 20px;
}

.blog .excerpt {
  margin: 0;
  color: var(--muted);
}

.blog details {
  margin-top: 12px;
}

.blog summary {
  cursor: pointer;
  color: var(--accent);
}

.blog summary:hover {
  text-decoration: underline;
}

.blog .content {
  margin-top: 10px;
  color: var(--muted);
}

.footer {
  border-top: 1px solid var(--border);
  margin-top: 28px;
  padding: 18px 0 34px;
  color: var(--faint);
  font-size: 13px;
}

.small { font-size: 13px; color: var(--muted); }

.highlight {
  color: var(--text);
  background: #eef2ff;
  padding: 1px 6px;
  border-radius: 8px;
  border: 1px solid var(--border);
}

hr {
  border: 0;
  height: 1px;
  background: var(--border);
  margin: 16px 0;
}

form {
  display: grid;
  gap: 12px;
}

label {
  font-weight: 600;
  font-size: 14px;
}

input,
textarea,
select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  font: inherit;
  background: #ffffff;
  color: var(--text);
}

textarea {
  min-height: 140px;
  resize: vertical;
}

button {
  border: 1px solid var(--border);
  background: var(--accent);
  color: #ffffff;
  padding: 10px 14px;
  border-radius: 10px;
  font-weight: 600;
  cursor: pointer;
}

button:hover {
  opacity: 0.92;
}