:root {
  --bg: #0a0f0c;
  --bg-2: #111913;
  --ink: #d7e4d4;
  --muted: #95a691;
  --line: #2e4031;
  --line-soft: #1e2a20;
  --accent: #79ff7f;
  --accent-dim: #54b259;
  --warn: #d8ff60;
}

* {
  box-sizing: border-box;
}

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

body {
  min-height: 100vh;
  font-family: "JetBrains Mono", monospace;
  color: var(--ink);
  background: radial-gradient(circle at top right, #162218, transparent 35%), var(--bg);
  line-height: 1.6;
}

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(121, 255, 127, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(121, 255, 127, 0.05) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: 0.35;
}

.bg-glow {
  display: none;
}

.container {
  width: min(980px, calc(100% - 1.5rem));
  margin-inline: auto;
}

.site-header {
  border-bottom: 1px dashed var(--line);
  background: rgba(10, 15, 12, 0.95);
  position: sticky;
  top: 0;
  z-index: 20;
}

.nav-wrap {
  min-height: 62px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.03em;
  font-size: 1.02rem;
}

.brand-pulse {
  color: var(--accent);
}

.site-nav {
  display: flex;
  gap: 0.9rem;
  font-size: 0.9rem;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px dotted transparent;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--accent);
  border-bottom-color: var(--accent-dim);
}

.menu-btn {
  display: none;
  border: 1px solid var(--line);
  background: var(--bg-2);
  color: var(--ink);
  padding: 0.3rem 0.6rem;
  border-radius: 6px;
  font-family: inherit;
}

main {
  padding-bottom: 2.2rem;
}

.hero {
  padding: 2rem 0 1rem;
}

.kicker {
  margin: 0;
  color: var(--warn);
  font-size: 0.82rem;
}

h1,
h2,
h3,
h4 {
  font-family: "Space Grotesk", sans-serif;
  letter-spacing: 0.01em;
}

h1 {
  margin: 0.4rem 0 0.6rem;
  font-size: clamp(1.8rem, 5.2vw, 2.6rem);
  max-width: 18ch;
  line-height: 1.2;
}

h2 {
  font-size: clamp(1.15rem, 3.5vw, 1.45rem);
}

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

.hero-text {
  margin-top: 0.4rem;
  max-width: 62ch;
  color: var(--muted);
  font-size: 0.96rem;
}

.hero-actions {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  border-radius: 7px;
  border: 1px solid var(--line);
  padding: 0.42rem 0.75rem;
  font-size: 0.88rem;
  transition: 0.16s ease;
}

.btn-primary {
  background: rgba(121, 255, 127, 0.15);
  color: var(--accent);
}

.btn-ghost {
  background: var(--bg-2);
  color: var(--ink);
}

.btn:hover,
.btn:focus-visible {
  border-color: var(--accent-dim);
  color: var(--accent);
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.7rem;
  margin: 1rem auto 1.8rem;
}

.stat-card,
.writeup-card,
.article-card {
  border: 1px dashed var(--line);
  border-radius: 10px;
  background: rgba(17, 25, 19, 0.72);
}

.stat-card {
  padding: 0.85rem;
}

.stat-card h2 {
  margin: 0 0 0.28rem;
  font-size: 1rem;
  color: var(--accent);
}

.mono {
  margin: 0;
  font-size: 0.84rem;
  color: var(--muted);
}

.mono a {
  color: var(--ink);
}

.writeups {
  margin-top: 0.2rem;
}

.section-head h2 {
  margin: 0;
}

.section-head p {
  margin: 0.2rem 0 0.7rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.writeup-card {
  padding: 1rem;
  position: relative;
}

.writeup-card::before {
  content: "new";
  position: absolute;
  top: -9px;
  right: 10px;
  font-size: 0.68rem;
  color: #0c140d;
  background: var(--warn);
  border: 1px solid #a5bf4a;
  border-radius: 3px;
  padding: 0 5px;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.tag {
  border: 1px dotted var(--accent-dim);
  color: var(--accent);
  border-radius: 5px;
  padding: 0.12rem 0.4rem;
  font-size: 0.72rem;
}

.featured h3 {
  margin: 0.6rem 0 0.3rem;
  font-size: 1.3rem;
}

.featured p {
  margin: 0 0 0.9rem;
  font-size: 0.92rem;
  color: var(--muted);
}

.site-footer {
  border-top: 1px dashed var(--line-soft);
  margin-top: 2rem;
  padding: 1rem 0 1.3rem;
  color: var(--muted);
  font-size: 0.82rem;
}

/* Writeup page */
.article-wrap {
  padding: 1.3rem 0 2rem;
}

.article-card {
  padding: clamp(0.9rem, 2vw, 1.4rem);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0.8rem 0;
}

.article-meta span {
  font-size: 0.72rem;
  color: var(--warn);
  border: 1px dotted #95ad43;
  padding: 0.12rem 0.4rem;
  border-radius: 5px;
}

.article-lead {
  color: var(--muted);
  font-size: 0.94rem;
}

.note {
  margin-top: 0.7rem;
  background: rgba(12, 19, 13, 0.7);
  border: 1px dashed var(--accent-dim);
  border-radius: 8px;
  padding: 0.55rem 0.7rem;
  color: #c3dfbf;
}

.toc {
  margin-top: 0.9rem;
  margin-bottom: 0;
  padding-left: 1.2rem;
}

.toc a {
  color: var(--accent);
  text-decoration: none;
}

.article-card h2 {
  margin-top: 1.5rem;
  margin-bottom: 0.45rem;
}

.article-card p,
.article-card li {
  color: #c6d3c4;
  font-size: 0.92rem;
}

pre {
  margin: 0.65rem 0;
  padding: 0.75rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #080e09;
  overflow-x: auto;
  position: relative;
}

code {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.81rem;
  color: #baffbc;
}

pre button.copy-btn {
  position: absolute;
  right: 0.35rem;
  top: 0.35rem;
  border-radius: 5px;
  border: 1px solid var(--line);
  background: rgba(17, 25, 19, 0.95);
  color: var(--muted);
  font-size: 0.66rem;
  padding: 0.1rem 0.35rem;
  cursor: pointer;
}

.flag-box {
  border: 1px dashed #94b642;
  background: rgba(88, 114, 28, 0.12);
  padding: 0.7rem;
  border-radius: 8px;
}

.flag-box code {
  color: #d9ff84;
}

.reveal {
  opacity: 1;
  transform: none;
}

.reveal.is-visible {
  opacity: 1;
}

@media (max-width: 860px) {
  .stats {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .menu-btn {
    display: inline-flex;
  }

  .site-nav {
    display: none;
    position: absolute;
    right: 0.75rem;
    top: 56px;
    width: 190px;
    flex-direction: column;
    gap: 0.5rem;
    border: 1px dashed var(--line);
    background: rgba(10, 15, 12, 0.98);
    border-radius: 8px;
    padding: 0.6rem;
  }

  .site-nav.open {
    display: flex;
  }

  .hero {
    padding-top: 1.2rem;
  }

  .section-head p,
  .featured p,
  .article-card p,
  .article-card li {
    font-size: 0.89rem;
  }
}