:root {
  --ink: #12223a;
  --ink-soft: #2a4065;
  --paper: #fffdf6;
  --panel: #fff9e8;
  --line: #f0d28a;
  --accent-a: #eb6c1c;
  --accent-b: #0089a8;
  --accent-c: #2f9d59;
  --shadow: rgba(18, 34, 58, 0.14);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  font-family: "IBM Plex Mono", "Consolas", "Liberation Mono", monospace;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% -5%, #ffd68a 0%, transparent 40%),
    radial-gradient(circle at 105% 20%, #9be4f4 0%, transparent 42%),
    linear-gradient(180deg, #fffefb 0%, #fff9eb 100%);
  line-height: 1.5;
}

.bg-noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(transparent 95%, rgba(18, 34, 58, 0.04) 96%);
  background-size: 100% 10px;
  opacity: 0.32;
  z-index: -1;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.8rem 1rem;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 253, 246, 0.86);
  backdrop-filter: blur(8px);
}

.brand {
  font-family: "Bebas Neue", "Impact", sans-serif;
  letter-spacing: 0.08em;
  font-size: 1.6rem;
  color: var(--accent-a);
}

.menu {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.menu a {
  text-decoration: none;
  color: var(--ink);
  border-bottom: 2px solid transparent;
  padding-bottom: 0.1rem;
}

.menu a:hover {
  border-color: var(--accent-b);
}

main {
  max-width: 1120px;
  margin: 0 auto;
  padding: 1rem;
}

.hero {
  border: 2px solid var(--line);
  background: linear-gradient(145deg, #fffefb 0%, #fff5dd 100%);
  box-shadow: 0 18px 40px var(--shadow);
  padding: 2.5rem 1.3rem 1.5rem;
  margin-top: 0.9rem;
}

.kicker {
  margin: 0 0 0.4rem;
  color: var(--accent-b);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
}

.hero h1,
.panel h2 {
  margin: 0;
  font-family: "Bebas Neue", "Impact", sans-serif;
  letter-spacing: 0.04em;
}

.hero h1 {
  font-size: clamp(2.2rem, 9vw, 5.2rem);
  color: var(--ink);
}

.lede {
  max-width: 70ch;
  margin-top: 0.6rem;
}

.hero-metrics {
  margin-top: 1.2rem;
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
}

.hero-metrics article {
  background: #fff;
  border: 1px solid #f4deb0;
  padding: 0.8rem;
}

.hero-metrics h2 {
  margin: 0;
  color: var(--accent-c);
  font-size: 1.5rem;
}

.hero-metrics p {
  margin: 0.3rem 0 0;
  color: var(--ink-soft);
}

.panel {
  margin-top: 1rem;
  border: 2px solid var(--line);
  background: var(--panel);
  box-shadow: 0 10px 28px var(--shadow);
  padding: 1.1rem;
}

.panel h2 {
  font-size: clamp(1.8rem, 5vw, 3rem);
  color: var(--accent-a);
}

.intro {
  margin-top: 0.3rem;
  color: var(--ink-soft);
}

.chain {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.8rem;
}

.chain li {
  border-left: 5px solid var(--accent-b);
  background: #fff;
  padding: 0.6rem 0.8rem;
}

.chain h3 {
  margin: 0;
  font-size: 1rem;
  color: var(--ink);
}

.chain p {
  margin: 0.4rem 0 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0.8rem;
  margin-top: 0.9rem;
}

.card {
  background: #fff;
  border: 1px solid #f2d59a;
  padding: 0.8rem;
}

.card h3 {
  margin: 0;
  color: var(--accent-b);
}

.card p {
  margin: 0.45rem 0;
}

.card ul {
  margin: 0.4rem 0 0;
  padding-left: 1rem;
}

.layout {
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.layout > div {
  background: #fff;
  border: 1px solid #f2d59a;
  padding: 0.8rem;
}

.layout h3 {
  margin-top: 0;
}

.commands {
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.commands article {
  border: 1px solid #f2d59a;
  background: #fff;
  padding: 0.8rem;
}

.commands h3 {
  margin-top: 0;
}

pre {
  margin: 0;
  background: #152237;
  color: #d6eef9;
  border: 2px solid #2f5278;
  padding: 0.8rem;
  overflow: auto;
}

code {
  font-family: "IBM Plex Mono", "Consolas", monospace;
}

.note {
  margin-top: 0.8rem;
  color: var(--ink-soft);
}

.footer {
  margin: 1rem auto 1.5rem;
  max-width: 1120px;
  padding: 0 1rem;
  color: var(--ink-soft);
}

.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 380ms ease, transform 380ms ease;
}

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

@media (max-width: 640px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.5rem;
  }

  .hero {
    padding-top: 1.5rem;
  }
}