:root {
  --bg: #fff7ed;
  --surface: #ffffff;
  --primary: #f28c28;
  --primary-strong: #d46a00;
  --button: #ffd54a;
  --button-text: #3b2b23;
  --outline: #2e7d32;
  --text: #5d4037;
  --muted: #7a5a50;
  --shadow: rgba(0, 0, 0, 0.08);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", "Liberation Sans", sans-serif;
  background: radial-gradient(1000px 600px at 20% 0%, rgba(242, 140, 40, 0.18), transparent 55%),
              radial-gradient(900px 500px at 85% 10%, rgba(46, 125, 50, 0.16), transparent 50%),
              var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.container {
  width: min(1100px, calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.84);
  backdrop-filter: blur(10px);
  border-bottom: 2px solid rgba(46, 125, 50, 0.35);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 0;
}

.brand {
  text-decoration: none;
  display: grid;
  gap: 0.1rem;
}

.brand-title {
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
}

.brand-subtitle {
  font-size: 0.9rem;
  color: var(--muted);
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-wrap: wrap;
  justify-content: center;
}

.nav-link {
  text-decoration: none;
  color: var(--text);
  padding: 0.35rem 0.5rem;
  border-radius: 0.6rem;
  border: 1px solid transparent;
}

.nav-link:hover {
  border-color: rgba(46, 125, 50, 0.5);
  background: rgba(255, 213, 74, 0.18);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 0.85rem;
  border-radius: 0.75rem;
  background: var(--button);
  color: var(--button-text);
  border: 2px solid var(--outline);
  text-decoration: none;
  font-weight: 800;
  box-shadow: 0 10px 25px var(--shadow);
}

.btn:hover {
  transform: translateY(-1px);
}

.page {
  padding: 1.5rem 0 2.25rem;
}

.page-header {
  padding: 1.25rem 1.25rem 0.85rem;
  background: var(--surface);
  border: 2px solid rgba(46, 125, 50, 0.55);
  border-radius: 1rem;
  box-shadow: 0 12px 30px var(--shadow);
}

.page-title {
  margin: 0;
  font-size: clamp(1.4rem, 2.4vw, 2.1rem);
  color: var(--text);
}

.page-subtitle {
  margin: 0.35rem 0 0;
  color: var(--muted);
}

.content {
  margin-top: 1rem;
  padding: 1.25rem;
  background: var(--surface);
  border: 2px solid rgba(46, 125, 50, 0.35);
  border-radius: 1rem;
  box-shadow: 0 12px 30px var(--shadow);
}

.content a {
  color: var(--primary-strong);
  text-decoration: underline;
  text-decoration-thickness: 2px;
}

.content h2, .content h3 {
  margin-top: 1.2rem;
}

.meta {
  margin: 0.35rem 0 0;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.dot { opacity: 0.7; }

.tag {
  display: inline-block;
  padding: 0.1rem 0.5rem;
  border-radius: 999px;
  border: 1px solid rgba(46, 125, 50, 0.6);
  background: rgba(242, 140, 40, 0.12);
  color: var(--text);
  font-weight: 700;
  font-size: 0.85rem;
}

.grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
  padding: 1rem;
  border-radius: 1rem;
  border: 2px solid rgba(46, 125, 50, 0.35);
  background: rgba(255, 255, 255, 0.7);
}

.card h3 {
  margin: 0 0 0.4rem;
}

.card p {
  margin: 0.2rem 0 0.6rem;
  color: var(--muted);
}

.card a {
  font-weight: 800;
}

.site-footer {
  border-top: 2px solid rgba(46, 125, 50, 0.35);
  padding: 1.25rem 0;
  background: rgba(255, 255, 255, 0.65);
}

.footer-inner {
  display: flex;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}

.footer-links {
  display: flex;
  gap: 1rem;
}

.footer-links a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 2px solid rgba(242, 140, 40, 0.5);
}

.muted { color: var(--muted); }

pre, code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

pre {
  padding: 1rem;
  border-radius: 1rem;
  overflow-x: auto;
  border: 2px solid rgba(46, 125, 50, 0.35);
  background: rgba(255, 247, 237, 0.8);
}

@media (max-width: 820px) {
  .header-inner { justify-content: center; }
  .btn { display: none; }
}