/* Zero Medium portal: public pages. Tokens are zeromedium.com's (website/assets/css/styles.css). */

:root {
  --bg: #0f1218;
  --bg-2: #131720;
  --surface: rgba(255, 255, 255, 0.03);
  --surface-2: rgba(255, 255, 255, 0.055);
  --border: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: #f4f6f8;
  --muted: #8b93a1;
  --dim: #5d6573;
  --accent: #5eead4;
  --accent-ink: #062a25;
  --accent-soft: rgba(94, 234, 212, 0.12);
  --highlight: #d1c6fe;
  --highlight-ink: #1e1238;
  --highlight-soft: rgba(209, 198, 254, 0.12);

  --font-display: "Archivo", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, Consolas, monospace;

  --radius: 18px;
  --radius-sm: 10px;
  --container: 1200px;
  --gutter: clamp(16px, 4vw, 40px);
  --header-h: 76px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 1rem/1.65 var(--font-body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
::selection { background: var(--accent); color: var(--accent-ink); }
a { color: inherit; text-decoration: none; }
img, svg { display: block; }
code { font-family: var(--font-mono); font-size: .85em; }

h1, h2, h3 {
  font-family: var(--font-display);
  font-variation-settings: "wdth" 125;
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.01em;
  margin: 0;
}
h1 { font-size: clamp(2rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.3rem, 2.4vw, 1.7rem); margin-bottom: .9rem; }
h3 { font-size: 1.15rem; margin-bottom: .5rem; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 var(--gutter); }
.accent { color: var(--accent); }
.muted { color: var(--muted); }

.kicker, .eyebrow {
  font: 500 .78rem/1 var(--font-display);
  font-variation-settings: "wdth" 125;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 1.2rem;
}
.kicker { color: var(--highlight); }
.kicker.accent, .eyebrow.accent { color: var(--accent); }
.eyebrow i { font-style: normal; color: var(--highlight); padding-right: .5em; }
.eyebrow i::before { content: "//"; }

.btn {
  display: inline-flex; align-items: center; gap: .6rem;
  padding: .9rem 1.35rem;
  border-radius: 999px;
  background: var(--accent); color: var(--accent-ink);
  font: 600 .95rem/1 var(--font-body);
  transition: transform .2s var(--ease), box-shadow .2s;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 10px 30px -8px rgba(94, 234, 212, .55); }
.btn:focus-visible, a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.btn-small { padding: .55rem .95rem; font-size: .85rem; color: var(--accent-ink) !important; background: var(--accent) !important; }

.site-header {
  position: sticky; top: 0; z-index: 50;
  height: var(--header-h);
  background: rgba(15, 18, 24, .82);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid var(--border);
}
.header-inner { height: 100%; display: flex; align-items: center; gap: 1.5rem; }
.brand { display: inline-flex; align-items: center; gap: .7rem; flex-shrink: 0; }
.brand-mark { width: 36px; height: 36px; color: var(--text); transition: transform .6s var(--ease); }
.brand:hover .brand-mark { transform: rotate(90deg); }
.brand-name {
  font: 800 .82rem/1.02 var(--font-display);
  font-variation-settings: "wdth" 125;
  letter-spacing: .06em; text-transform: uppercase;
}
.brand-sub { color: var(--accent); }
.nav { display: flex; gap: .25rem; margin-left: auto; align-items: center; flex-wrap: wrap; }
.nav a { padding: .5rem .8rem; border-radius: 999px; font-size: .9rem; color: var(--muted); transition: color .2s, background .2s; }
.nav a:hover { color: var(--text); background: var(--surface-2); }

.hero { padding: clamp(3rem, 8vw, 6rem) 0 clamp(2rem, 5vw, 3.5rem); border-bottom: 1px solid var(--border); background: radial-gradient(1200px 400px at 80% -10%, var(--accent-soft), transparent 60%); }
.hero-small { padding-top: clamp(2rem, 5vw, 3.5rem); }
.lead { color: var(--muted); font-size: 1.12rem; max-width: 62ch; margin: 1.2rem 0 0; }
.actions { margin: 1.8rem 0 0; display: flex; flex-wrap: wrap; gap: .75rem; }
.crumbs { font-size: .85rem; color: var(--dim); margin-bottom: 1.4rem; }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--text); }

.section { padding: clamp(2rem, 5vw, 4rem) 0; }
.section-title { margin: 2.2rem 0 1.2rem; }

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr)); gap: 1rem; }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}
.card p { color: var(--muted); margin: 0 0 1rem; }
.card-link { display: flex; flex-direction: column; transition: border-color .2s, background .2s, transform .2s var(--ease); }
.card-link:hover { border-color: var(--border-strong); background: var(--surface-2); transform: translateY(-2px); }
.card .more, .card .meta { margin-top: auto; font-size: .85rem; color: var(--accent); }
.card .meta { color: var(--dim); font-family: var(--font-mono); }

.chips { display: flex; flex-wrap: wrap; gap: .5rem; }
.chip { padding: .45rem .85rem; border: 1px solid var(--border); border-radius: 999px; font-size: .88rem; color: var(--muted); }
a.chip:hover { color: var(--text); border-color: var(--border-strong); }
.chip b { color: var(--highlight); font-weight: 600; margin-left: .3rem; }

.detail { display: grid; gap: 1rem; }
.ticks { margin: 0; padding: 0; list-style: none; display: grid; gap: .6rem; }
.ticks li { padding-left: 1.6rem; position: relative; color: var(--muted); }
.ticks li::before { content: ""; position: absolute; left: 0; top: .55em; width: .7rem; height: .35rem; border-left: 2px solid var(--accent); border-bottom: 2px solid var(--accent); transform: rotate(-45deg); }
.members { margin: 0; display: grid; grid-template-columns: max-content 1fr; gap: .6rem 1.2rem; }
.members dt { color: var(--highlight); font-size: .85rem; text-transform: uppercase; letter-spacing: .12em; }
.members dd { margin: 0; display: flex; flex-wrap: wrap; gap: .4rem; }
.members code { padding: .15rem .5rem; border-radius: 6px; background: var(--surface-2); color: var(--text); }

.site-footer { border-top: 1px solid var(--border); padding: 2rem 0; color: var(--dim); font-size: .85rem; }
.footer-inner { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.footer-inner p { margin: 0; }
.footer-inner a:hover { color: var(--text); }

@media (max-width: 720px) {
  .site-header { height: auto; padding: .8rem 0; position: static; }
  .header-inner { flex-wrap: wrap; }
  .nav { margin-left: 0; }
  .members { grid-template-columns: 1fr; }
}

/* ---------- Home ---------- */

.btn-ghost { background: transparent; color: var(--text); box-shadow: inset 0 0 0 1px var(--border-strong); }
.btn-ghost:hover { background: var(--surface-2); box-shadow: inset 0 0 0 1px var(--accent); }
.hero-home { padding-bottom: clamp(3rem, 7vw, 5rem); }
.section-alt { background: var(--bg-2); border-block: 1px solid var(--border); }
.section-head { margin: 0 0 1.6rem; font-size: clamp(1.5rem, 3vw, 2.2rem); }

.product-feature { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 2rem; padding: clamp(1.5rem, 3vw, 2.5rem); }
.product-feature h3 { margin: 0 0 .8rem; font-size: clamp(1.6rem, 3vw, 2.2rem); }
.product-feature .pitch { color: var(--text); font-weight: 600; margin: 1.4rem 0 .9rem; }
.card .actions { margin: 1.6rem 0 0; }
.product-catalog { display: grid; gap: 1.2rem; align-content: start; }
.product-catalog .eyebrow { margin: 0; }
.featured-mini { display: grid; gap: .75rem; }
.featured-mini .card { padding: 1rem 1.2rem; background: var(--bg-2); }
.featured-mini .card h3 { margin: 0 0 .4rem; font-size: 1rem; }
.featured-mini .card p { margin: 0 0 .6rem; font-size: .9rem; }
.featured-mini .eyebrow { margin-bottom: .6rem; font-size: .68rem; }

.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr)); gap: 1rem; }
.tile { padding: 1.4rem 1.5rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); position: relative; }
.tile::before { content: ""; display: block; width: 1.6rem; height: 1.6rem; margin-bottom: 1rem; border: 2px solid var(--accent); border-radius: 6px; }
.tile h3 { margin: 0 0 .5rem; font-size: 1.05rem; }
.tile p { margin: 0; color: var(--muted); font-size: .95rem; }

.access { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 2rem; align-items: start; }
.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 1.4rem; counter-reset: step; }
.steps li { counter-increment: step; display: grid; grid-template-columns: 3rem 1fr; column-gap: 1rem; }
.steps li::before {
  content: counter(step, decimal-leading-zero); grid-row: span 2;
  font: 800 1.4rem/1 var(--font-display); font-variation-settings: "wdth" 125; color: var(--accent);
  padding-top: .15rem;
}
.steps h3 { margin: 0 0 .35rem; font-size: 1.1rem; }
.steps p { margin: 0; color: var(--muted); }
.steps a, .access-help a:not(.btn), .email-line a { color: var(--accent); }
.access-help h3 { margin: 0 0 .8rem; }
.access-help .actions { margin-top: 1.2rem; }
.email-line { margin: 1.4rem 0 0; }

@media (max-width: 860px) {
  .product-feature, .access { grid-template-columns: 1fr; }
}

/* ---------- Catalog lists ---------- */

.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.catalog-tools { display: flex; gap: .75rem; align-items: center; margin-bottom: 1rem; }
.search-field { flex: 1; }
.search-field input {
  width: 100%; font: 400 1rem/1.4 var(--font-body); color: var(--text); background: var(--bg-2);
  border: 1px solid var(--border-strong); border-radius: 999px; padding: .8rem 1.2rem;
}
.search-field input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.type-chips { margin-bottom: 1rem; }
.chip-on { color: var(--accent); border-color: var(--accent); }
.result-count { font-size: .88rem; margin: 0 0 .75rem; }
.catalog-list { list-style: none; margin: 0; padding: 0; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.catalog-row + .catalog-row { border-top: 1px solid var(--border); }
.catalog-row[hidden] { display: none; }
.catalog-row a { display: flex; gap: 1.5rem; align-items: center; padding: 1rem 1.4rem; transition: background .15s; }
.catalog-row a:hover { background: var(--surface-2); }
.row-main { flex: 1; min-width: 0; display: grid; gap: .25rem; }
.row-title { font-weight: 600; color: var(--text); }
.row-summary { color: var(--muted); font-size: .92rem; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.row-meta { display: flex; gap: .75rem; align-items: center; flex-shrink: 0; }
.row-type { font-size: .78rem; color: var(--highlight); white-space: nowrap; }
.row-version { font: 400 .82rem var(--font-mono); color: var(--dim); min-width: 4.5rem; text-align: right; }
.no-match { margin: 1rem 0 0; }
.no-match a { color: var(--accent); }

/* ---------- Item pages ---------- */

.item-grid { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 1.25rem; align-items: start; }
.glance { position: sticky; top: calc(var(--header-h) + 1rem); }
.glance h2 { margin: 0 0 1rem; font-size: 1.1rem; }
.facts { margin: 0 0 1.2rem; display: grid; grid-template-columns: max-content 1fr; gap: .6rem 1rem; font-size: .92rem; }
.facts dt { color: var(--dim); }
.facts dd { margin: 0; color: var(--text); }
.facts a { color: var(--accent); }
.facts .mono { font-family: var(--font-mono); }
.member-link { padding: .15rem .55rem; border-radius: 6px; background: var(--accent-soft); color: var(--accent); font-size: .9rem; }
.member-link:hover { background: var(--accent); color: var(--accent-ink); }
.member-count { color: var(--dim); font-size: .8rem; margin-left: .2rem; }
.pack-list { list-style: none; margin: 0; padding: 0; display: grid; gap: .8rem; }
.pack-list li { display: grid; gap: .2rem; }
.pack-list a { color: var(--accent); font-weight: 600; }
.pack-list span { color: var(--muted); font-size: .9rem; }

@media (max-width: 860px) {
  .item-grid { grid-template-columns: 1fr; }
  .glance { position: static; }
}
@media (max-width: 720px) {
  .catalog-tools { flex-direction: column; align-items: stretch; }
  .catalog-row a { flex-direction: column; align-items: flex-start; gap: .5rem; }
  .row-version { text-align: left; min-width: 0; }
}

/* ---------- Contact pages ---------- */

.contact-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: 1.25rem; align-items: start; }
.stack-public { display: grid; gap: 1rem; }
.contact-form { display: grid; gap: 1rem; }
.contact-form h2 { margin: 0; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: .9rem; }
.field-public { display: grid; gap: .35rem; font-size: .9rem; color: var(--muted); }
.field-public input, .field-public select, .field-public textarea {
  font: 400 1rem/1.4 var(--font-body); color: var(--text); background: var(--bg-2);
  border: 1px solid var(--border-strong); border-radius: var(--radius-sm); padding: .7rem .8rem; width: 100%;
}
.field-public input:focus, .field-public select:focus, .field-public textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.field-public.invalid input, .check.invalid { border-color: var(--highlight); color: var(--highlight); }
.choices { border: 0; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: .5rem; }
.choices legend { color: var(--muted); font-size: .9rem; margin-bottom: .5rem; }
.choice { display: inline-flex; gap: .45rem; align-items: center; padding: .5rem .85rem; border: 1px solid var(--border); border-radius: 999px; font-size: .9rem; cursor: pointer; }
.choice:has(input:checked) { border-color: var(--accent); color: var(--accent); }
.check { display: flex; gap: .6rem; align-items: flex-start; font-size: .88rem; color: var(--muted); }
.check input { margin-top: .25rem; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.form-error { margin: 0; color: var(--highlight); }
.tag { font-size: .72rem; text-transform: uppercase; letter-spacing: .12em; color: var(--highlight); border: 1px solid var(--highlight-soft); border-radius: 999px; padding: .1rem .5rem; }
.material-list { list-style: none; margin: 0; padding: 0; display: grid; gap: .9rem; }
.material-list .btn { margin: .4rem .6rem 0 0; }
.small-public { font-size: .85rem; margin: 0; }
.small-public a { color: var(--accent); }

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