:root {
  --bg: #0b1220;
  --panel: rgba(255, 255, 255, 0.06);
  --text: #e8eefc;
  --muted: rgba(232, 238, 252, 0.72);
  --border: rgba(255, 255, 255, 0.12);
  --link: #e8eefc;
  --max: 960px;
  --header-h: 72px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
html { background: var(--bg); }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(1200px 600px at 10% 0%, rgba(255,255,255,0.08), transparent 60%),
              radial-gradient(900px 500px at 80% 10%, rgba(255,255,255,0.06), transparent 55%),
              var(--bg);
  color: var(--text);
  overflow-x: hidden;
  padding-top: var(--header-h);
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible {
  outline: 2px solid rgba(232, 238, 252, 0.35);
  outline-offset: 3px;
  border-radius: 10px;
}

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 20px;
}

#app {
  flex: 1;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  backdrop-filter: blur(10px);
  background: rgba(11, 18, 32, 0.72);
  border-bottom: 1px solid var(--border);
  z-index: 10;
}

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

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 180px;
}

.brand-mark {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.06);
  font-weight: 800;
  letter-spacing: 0.5px;
}

.brand-title {
  font-weight: 700;
  letter-spacing: 0.4px;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  padding: 8px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  cursor: pointer;
}

@media (max-width: 640px) {
  .nav-toggle { display: inline-flex; }

  .nav {
    display: none;
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
    padding: 10px;
    min-width: 200px;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: rgba(11, 18, 32, 0.92);
    backdrop-filter: blur(10px);
  }

  body.nav-open .nav { display: flex; }
  .nav a { justify-content: flex-start; }
}

.nav a {
  padding: 8px 10px;
  border-radius: 12px;
  border: 1px solid transparent;
  color: var(--muted);
}

.nav a[aria-current="page"] {
  color: var(--text);
  border-color: var(--border);
  background: var(--panel);
}

.hero {
  padding: 28px 0 16px 0;
}

.hero h1 {
  margin: 0;
  font-size: 2.1rem;
  line-height: 1.15;
}

.hero p {
  margin: 10px 0 0 0;
  color: var(--muted);
  max-width: 70ch;
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
  margin-top: 18px;
}

.card {
  grid-column: span 12;
  border: 1px solid var(--border);
  background: var(--panel);
  border-radius: 18px;
  padding: 16px;
}

@media (min-width: 820px) {
  .card.half { grid-column: span 6; }
}

.card h2, .card h3 { margin: 0 0 8px 0; }
.card p { margin: 0; color: var(--muted); }

.list {
  display: grid;
  gap: 12px;
}

.post-item {
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.04);
  border-radius: 16px;
  padding: 14px;
}

.post-item .meta {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 0.9rem;
}

.post-item h3 { margin: 6px 0 6px 0; }
.post-item p { margin: 0; }

.post-item h3 a {
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.post-item h3 a:hover {
  text-decoration-thickness: 3px;
}

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

.article .meta {
  color: var(--muted);
  font-size: 0.95rem;
  margin-top: 6px;
}

.markdown {
  margin-top: 14px;
  line-height: 1.7;
}

.markdown a {
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.markdown a:hover {
  text-decoration-thickness: 3px;
}

.markdown h1 { font-size: 1.9rem; margin: 0 0 10px 0; }
.markdown h2 { font-size: 1.35rem; margin: 18px 0 8px 0; }
.markdown h3 { font-size: 1.15rem; margin: 16px 0 6px 0; }
.markdown p { margin: 10px 0; color: var(--text); }
.markdown ul { margin: 10px 0 10px 18px; }
.markdown li { margin: 6px 0; }
.markdown code { background: rgba(255,255,255,0.08); padding: 2px 6px; border-radius: 8px; }
.markdown pre {
  overflow: auto;
  border: 1px solid var(--border);
  background: rgba(0,0,0,0.25);
  padding: 12px;
  border-radius: 14px;
}

.footer {
  color: var(--muted);
  padding: 24px 0;
  border-top: 1px solid var(--border);
  margin-top: auto;
  font-size: 0.95rem;
  text-align: center;
}

.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  text-decoration: none;
}

.button-link:hover {
  text-decoration: none;
  background: var(--panel);
}

.kbd {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.9em;
  padding: 2px 6px;
  border: 1px solid var(--border);
  border-bottom-color: rgba(255,255,255,0.18);
  border-radius: 8px;
  background: rgba(255,255,255,0.06);
}