:root {
  --ink: #1a2e28;
  --ink-soft: #3d524a;
  --muted: #6b7f76;
  --paper: #f7f5f0;
  --paper-2: #efebe3;
  --line: #d9d3c7;
  --accent: #c4703a;
  --accent-soft: #e8c4a8;
  --max: 42rem;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--ink);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--accent);
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--paper);
  padding: 0.5rem 1rem;
  z-index: 100;
}

.skip:focus {
  left: 0.5rem;
  top: 0.5rem;
}

.wrap {
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
}

.site-header {
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--paper) 92%, white);
  position: sticky;
  top: 0;
  backdrop-filter: blur(8px);
  z-index: 10;
}

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

.logo {
  font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: none;
  font-size: 1.05rem;
}

.logo:hover {
  color: var(--ink);
}

nav {
  display: flex;
  gap: 1.25rem;
  font-size: 0.95rem;
}

nav a {
  text-decoration: none;
  color: var(--ink-soft);
}

nav a:hover {
  color: var(--accent);
}

.hero {
  padding: 4.5rem 0 3rem;
}

.eyebrow {
  margin: 0 0 0.75rem;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.4rem, 6vw, 3.4rem);
  line-height: 1.1;
  letter-spacing: -0.035em;
  font-weight: 700;
}

.slogan {
  margin: 1rem 0 0.5rem;
  font-size: clamp(1.15rem, 2.5vw, 1.35rem);
  color: var(--ink-soft);
  font-weight: 500;
}

.slogan em {
  font-style: normal;
  color: var(--accent);
  font-weight: 600;
}

.sub {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
}

.about,
.works,
.learn {
  padding: 2.25rem 0;
  border-top: 1px solid var(--line);
}

h2 {
  margin: 0 0 1rem;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
}

.about p {
  margin: 0 0 1rem;
  color: var(--ink-soft);
}

.about p:last-child {
  margin-bottom: 0;
}

.cards {
  display: grid;
  gap: 1rem;
}

.card {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.25rem 1.35rem;
}

.card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.65rem;
  font-size: 0.8rem;
}

.tag {
  color: var(--muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 500;
}

.status {
  color: var(--accent);
  font-weight: 600;
}

.card h3 {
  margin: 0 0 0.4rem;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

.card-desc {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.98rem;
}

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

.site-footer {
  margin-top: 2.5rem;
  border-top: 1px solid var(--line);
  padding: 1.75rem 0 2.5rem;
}

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

.site-footer a {
  color: var(--muted);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--accent);
}

@media (max-width: 480px) {
  .wrap {
    width: min(100% - 1.75rem, var(--max));
  }

  .hero {
    padding-top: 3rem;
  }

  nav {
    gap: 0.9rem;
    font-size: 0.88rem;
  }
}