/* Korrin package index.
   Same tokens and type system as korrin-web's landing page (IBM Plex Mono
   for structure/code, IBM Plex Sans for prose) so the two sites read as one
   family, while staying a visually distinct, separate site — this one lists
   third-party code, not the language's own documentation. No theme picker
   here: this page follows the OS light/dark preference only. */

:root {
  --bg:    #f7f5ef;
  --fg:    #181a1f;
  --links: #1e4a3f;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: hsl(226, 23%, 11%); --fg: #bcbdd0; --links: #2b79a2; }
}

:root {
  --muted:  color-mix(in srgb, var(--fg) 70%, var(--bg));
  --faint:  color-mix(in srgb, var(--fg) 46%, var(--bg));
  --rule:   color-mix(in srgb, var(--fg) 15%, var(--bg));
  --sunk:   color-mix(in srgb, var(--fg) 6%,  var(--bg));
  --accent: var(--links);
  --accent-hover: color-mix(in srgb, var(--links) 74%, var(--fg));
  --sel:    color-mix(in srgb, var(--links) 24%, transparent);
  --card:   color-mix(in srgb, var(--fg) 3%, var(--bg));

  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --sans: "IBM Plex Sans", ui-sans-serif, system-ui, -apple-system, sans-serif;

  --measure: 900px;
  --pad: clamp(1.2rem, 5vw, 2rem);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--sel); }

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

a {
  color: var(--accent);
  text-underline-offset: 2px;
  text-decoration-thickness: from-font;
}
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

h1, h2, h3 {
  font-family: var(--mono);
  font-weight: 500;
  margin: 0;
  color: var(--fg);
  text-wrap: balance;
}
p { margin: 0; }

code {
  font-family: var(--mono);
  font-size: 0.88em;
  background: var(--sunk);
  padding: 0.08em 0.34em;
  border-radius: 4px;
}

.col {
  max-width: var(--measure);
  margin-inline: auto;
  padding-inline: var(--pad);
}

/* ---- masthead ------------------------------------------------- */
.masthead {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--rule);
}
.masthead .col {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 58px;
}
.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  text-decoration: none;
  color: var(--fg);
}
.wordmark svg { width: 20px; height: 20px; color: var(--fg); }
.wordmark span {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}
.wordmark .sep { color: var(--faint); font-weight: 400; }
.masthead nav { display: flex; align-items: center; gap: 1.15rem; }
.masthead nav a {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
}
.masthead nav a:hover { color: var(--fg); }
@media (max-width: 480px) { .masthead nav a.on-mid { display: none; } }

/* ---- hero ------------------------------------------------------ */
.hero { padding-block: clamp(2.25rem, 6vw, 3.5rem) clamp(1.5rem, 4vw, 2rem); }
.hero h1 {
  font-size: clamp(1.5rem, 1.1rem + 1.8vw, 2.2rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
}
.hero p {
  margin-top: 0.9rem;
  max-width: 62ch;
  color: var(--muted);
  font-size: 1.02rem;
}
.hero p a { color: var(--accent); }

.search {
  margin-top: 1.75rem;
  position: relative;
}
.search input {
  width: 100%;
  font-family: var(--sans);
  font-size: 0.98rem;
  color: var(--fg);
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 10px;
  padding: 0.75rem 1rem;
}
.search input::placeholder { color: var(--faint); }
.search input:focus-visible { outline-offset: 0; }

/* ---- listing ---------------------------------------------------- */
main.col { padding-block: 0 clamp(3rem, 7vw, 4.5rem); }

.count {
  margin-top: 1.5rem;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--faint);
  text-transform: uppercase;
}

.packages {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}

.package {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding: 1.1rem 1.2rem;
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 12px;
}
.package .name {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 1.02rem;
  color: var(--fg);
}
.package .description {
  color: var(--muted);
  font-size: 0.94rem;
  flex-grow: 1;
}
.package .tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.package .tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.02em;
  color: var(--muted);
  background: var(--sunk);
  border-radius: 999px;
  padding: 0.2rem 0.6rem;
}
.package .install {
  margin-top: 0.2rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--mono);
  font-size: 12px;
  background: var(--sunk);
  border-radius: 8px;
  padding: 0.5rem 0.7rem;
  overflow-x: auto;
  white-space: nowrap;
}
.package .install .p { color: var(--faint); }
.package a.repo {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--accent);
  text-decoration: none;
  word-break: break-all;
}
.package a.repo:hover { text-decoration: underline; }

/* ---- empty state ------------------------------------------------ */
.empty {
  margin-top: 2rem;
  padding: 2.5rem 1.5rem;
  text-align: center;
  border: 1px dashed var(--rule);
  border-radius: 12px;
}
.empty p:first-child {
  font-family: var(--mono);
  color: var(--fg);
  font-size: 1rem;
}
.empty p + p {
  margin-top: 0.6rem;
  color: var(--muted);
  font-size: 0.95rem;
}
.empty[hidden] { display: none; }

/* ---- footer ------------------------------------------------------ */
footer {
  border-top: 1px solid var(--rule);
  padding-block: 2.25rem 2.75rem;
}
.foot-mark { width: 22px; height: 22px; color: var(--faint); display: block; }
footer p {
  margin-top: 1rem;
  color: var(--muted);
  font-size: 0.9rem;
  max-width: 56ch;
}
footer nav {
  margin-top: 1.2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.1rem;
}
footer nav a {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--muted);
  text-decoration: none;
}
footer nav a:hover { color: var(--fg); }