:root {
  --ink: #0b1c19;
  --muted: #3a524c;
  --paper: #e7efe9;
  --panel: #fffdf9;
  --line: rgba(11, 28, 25, 0.16);
  --accent: #0b5f52;
  --accent-soft: #cfe8e1;
  --warn: #8a4b12;
  --shadow: 0 16px 40px rgba(11, 28, 25, 0.1);
  --radius: 18px;
  --font-display: "Space Grotesk", "Avenir Next", sans-serif;
  --font-body: "Source Sans 3", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--font-body);
  background: var(--paper);
  line-height: 1.5;
}

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

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

.atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(900px 420px at 12% -10%, rgba(15, 107, 92, 0.18), transparent 60%),
    radial-gradient(700px 380px at 88% 8%, rgba(138, 75, 18, 0.12), transparent 55%),
    linear-gradient(180deg, #f7faf7 0%, #e8efe9 48%, #e3ebe4 100%);
}

.atmosphere::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.35;
  background-image:
    linear-gradient(rgba(16, 35, 31, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 35, 31, 0.04) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55), transparent 75%);
}

.hero,
.directory,
.footer {
  width: min(1080px, calc(100% - 2rem));
  margin-inline: auto;
}

.hero {
  padding: 4.5rem 0 1.5rem;
  animation: rise 0.7s ease both;
}

.eyebrow {
  margin: 0 0 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}

.eyebrow a {
  color: inherit;
}

h1 {
  margin: 0;
  max-width: 12ch;
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 8vw, 5rem);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: -0.04em;
}

.lede {
  margin: 1.1rem 0 0;
  max-width: 38rem;
  font-size: 1.15rem;
  color: var(--muted);
}

.search {
  display: block;
  margin-top: 2rem;
  max-width: 40rem;
}

.search input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.95rem 1.25rem;
  font: inherit;
  font-size: 1.05rem;
  color: var(--ink);
  background: var(--panel);
  box-shadow: var(--shadow);
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.search input:focus {
  border-color: rgba(15, 107, 92, 0.55);
  box-shadow: 0 0 0 4px rgba(15, 107, 92, 0.12), var(--shadow);
  transform: translateY(-1px);
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  align-items: baseline;
  justify-content: space-between;
  margin-top: 1rem;
}

.stats {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--muted);
}

.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 1.4rem;
}

.filter {
  appearance: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.45rem 0.9rem;
  background: rgba(255, 252, 247, 0.7);
  color: var(--ink);
  font: inherit;
  font-size: 0.92rem;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.filter:hover {
  border-color: rgba(15, 107, 92, 0.4);
}

.filter[aria-pressed="true"] {
  background: var(--ink);
  border-color: var(--ink);
  color: #f4faf7;
}

.directory {
  padding: 1rem 0 4rem;
}

.category {
  margin-top: 2.4rem;
  animation: rise 0.55s ease both;
}

.category-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.9rem;
  padding-bottom: 0.55rem;
  border-bottom: 1px solid var(--line);
}

.category-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.45rem;
  letter-spacing: -0.02em;
}

.category-head span {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.skill {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  min-height: 100%;
  padding: 1.15rem 1.2rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow);
  transition: transform 0.22s ease, border-color 0.22s ease;
}

.skill:hover {
  transform: translateY(-3px);
  border-color: rgba(15, 107, 92, 0.35);
}

.skill-top {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  align-items: flex-start;
}

.skill h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

.version {
  flex: none;
  padding: 0.18rem 0.45rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.skill p {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: auto;
  padding-top: 0.35rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.2rem;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-decoration: none;
  transition: transform 0.15s ease, background 0.15s ease;
}

.button:hover {
  transform: translateY(-1px);
  color: inherit;
}

.button.primary {
  background: var(--accent);
  color: #f4faf7;
}

.button.secondary {
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
}

.empty {
  margin: 3rem 0;
  padding: 2rem;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  text-align: center;
  color: var(--muted);
  background: rgba(255, 252, 247, 0.55);
}

.footer {
  padding: 0 0 2.5rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 640px) {
  .hero {
    padding-top: 2.8rem;
  }

  .meta-row {
    flex-direction: column;
  }
}