/* mcp.film — design system v3
   School: Vercel / Linear / ElevenLabs. White, ink, hairlines, Geist.
   Marketplace layout: sticky category rail + card grid with monogram tiles.
   One inverse-black moment per page. No decoration that isn't information. */

:root {
  --paper: #ffffff;
  --paper-dim: #fafafa;
  --fill: #f4f4f5;
  --ink: #09090b;
  --ink-2: #52525b;
  --ink-3: #9395a0;
  --hairline: #e9e9eb;
  --hairline-2: #d9d9de;
  --code-bg: #fafafa;
  --inverse: #0a0a0b;
  --inverse-2: #131316;
  --inverse-ink: #fafafa;
  --inverse-dim: #9d9da6;
  --inverse-line: #26262b;
  --green: #15803d;
  --r-sm: 6px;
  --r: 10px;
  --r-lg: 16px;
  --sans: "Geist", "Inter", -apple-system, "Segoe UI", system-ui, sans-serif;
  --mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05), 0 8px 24px -8px rgba(0, 0, 0, 0.08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 5.5rem; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

a { color: var(--ink); text-decoration: none; }
p a, li a, .notes a, .agents-doc a {
  text-decoration: underline;
  text-decoration-color: var(--hairline-2);
  text-underline-offset: 3px;
  transition: text-decoration-color 0.12s;
}
p a:hover, li a:hover, .notes a:hover, .agents-doc a:hover { text-decoration-color: var(--ink); }
::selection { background: var(--ink); color: var(--paper); }

.mono { font-family: var(--mono); font-size: 0.86em; }
code {
  font-family: var(--mono); font-size: 0.84em;
  background: var(--fill);
  padding: 0.12em 0.4em; border-radius: 5px;
}

/* the system's one decorative voice: small mono labels */
.label, .hero-eyebrow, .feature-eyebrow, .crumbs, .code-head span, .foot-h {
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink-3);
}

/* tags: quiet text, not pills */
.tag {
  font-size: 12px; font-weight: 500; color: var(--ink-3); white-space: nowrap;
}
.tag-official { color: var(--ink-2); }
.tag-official::before {
  content: ""; display: inline-block; width: 5px; height: 5px;
  border-radius: 50%; background: var(--green);
  margin-right: 5px; vertical-align: 1.5px;
}

/* ------------------------------------------------------------- header */
.site-head {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 0 clamp(1.25rem, 4vw, 2.5rem);
  height: 57px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px) saturate(1.5);
  border-bottom: 1px solid var(--hairline);
}
.brand { font-size: 14.5px; font-weight: 600; letter-spacing: -0.01em; display: inline-flex; align-items: center; gap: 8px; }
.brand-dot { color: var(--ink-3); }
.site-nav { display: flex; align-items: center; gap: clamp(0.2rem, 1vw, 0.45rem); }
.site-nav a {
  font-size: 13px; font-weight: 500; color: var(--ink-2);
  padding: 6px 10px; border-radius: 7px;
  transition: background 0.12s, color 0.12s;
}
.site-nav a:hover { color: var(--ink); background: var(--fill); }
.site-nav .nav-cta {
  color: var(--paper); background: var(--ink); margin-left: 6px;
  padding: 6px 14px; border-radius: 999px;
}
.site-nav .nav-cta:hover { background: #2e2e33; color: var(--paper); }
.nav-gh { color: var(--ink-3); }

main { max-width: 1200px; margin: 0 auto; padding: 0 clamp(1.25rem, 4vw, 2.5rem); }

/* --------------------------------------------------------------- hero */
.hero { padding: clamp(3.5rem, 7vw, 5.5rem) 0 clamp(2rem, 4vw, 3rem); }
.hero-eyebrow { margin: 0 0 1.3rem; display: flex; align-items: center; gap: 7px; }
.hero-eyebrow .dot { color: var(--green); font-size: 8px; }
h1 {
  font-size: clamp(2.2rem, 4.6vw, 3.4rem);
  font-weight: 600;
  letter-spacing: -0.032em;
  line-height: 1.06;
  margin: 0 0 1.1rem;
  max-width: 15em;
  text-wrap: balance;
}
.hero-sub {
  color: var(--ink-2); font-size: clamp(0.95rem, 1.3vw, 1.06rem);
  line-height: 1.65; max-width: 36em; margin: 0;
  text-wrap: pretty;
}
.hero-sub strong { color: var(--ink); font-weight: 500; }
.hero-cta { display: flex; gap: 10px; margin: 1.8rem 0 0; flex-wrap: wrap; }
.hero-stats {
  display: flex; flex-wrap: wrap; gap: 0.4rem 1.5rem;
  margin: 2.2rem 0 0;
  font-family: var(--mono); font-size: 11.5px; color: var(--ink-3);
}
.hero-stats b { color: var(--ink); font-weight: 600; }

.btn {
  font: inherit; font-size: 13.5px; font-weight: 500; cursor: pointer;
  color: var(--ink); background: var(--paper);
  border: 1px solid var(--hairline-2); border-radius: 999px; padding: 8px 18px;
  display: inline-flex; align-items: center; gap: 6px;
  transition: border-color 0.12s, background 0.12s;
}
.btn:hover { border-color: var(--ink-3); }
.btn-primary { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.btn-primary:hover { background: #2e2e33; border-color: #2e2e33; color: var(--paper); }

/* ----------------------------------------------- featured (inverse band) */
.featured-row {
  display: grid; gap: 0;
  grid-template-columns: 1fr;
  margin: clamp(1rem, 2.5vw, 2rem) 0 0;
  background: var(--inverse);
  border-radius: var(--r-lg);
  overflow: hidden;
}
@media (min-width: 880px) { .featured-row { grid-template-columns: 5fr 4fr; } }
.feature { display: block; padding: clamp(1.5rem, 3vw, 2.2rem); color: var(--inverse-ink); }
.feature:hover { background: var(--inverse-2); }
.feature-eyebrow { color: var(--inverse-dim); margin: 0 0 0.9rem; }
.feature-name {
  font-size: clamp(1.4rem, 2.4vw, 1.8rem); font-weight: 600; letter-spacing: -0.025em;
  display: flex; align-items: baseline; gap: 0.7rem; color: var(--inverse-ink);
}
.feature-name .tag-official { color: var(--inverse-dim); }
.feature-tag { color: var(--inverse-ink); margin: 0.45rem 0 0.35rem; font-weight: 500; font-size: 14px; }
.feature-desc { color: var(--inverse-dim); font-size: 13px; line-height: 1.65; margin: 0 0 1.1rem; max-width: 36em; }
.feature-cta { font-size: 13px; font-weight: 500; color: var(--inverse-ink); }
.feature-cta::after { content: " →"; color: var(--inverse-dim); }

.agent-callout {
  padding: clamp(1.5rem, 3vw, 2.2rem);
  border-top: 1px solid var(--inverse-line);
  color: var(--inverse-dim); font-size: 13px;
  display: flex; flex-direction: column; justify-content: center; gap: 0.5rem;
}
@media (min-width: 880px) { .agent-callout { border-top: 0; border-left: 1px solid var(--inverse-line); } }
.agent-callout .feature-eyebrow { margin-bottom: 0.15rem; }
.agent-callout p { margin: 0; }
.agent-callout a { color: var(--inverse-ink); text-decoration-color: var(--inverse-line); }
.agent-callout pre {
  margin: 0.25rem 0; padding: 0.75rem 0.95rem;
  background: #000; border: 1px solid var(--inverse-line); border-radius: var(--r-sm);
  overflow-x: auto; color: #c9c9cf; font-size: 12px;
  font-family: var(--mono);
}

/* --------------------------------------------- directory: rail + grid */
.directory { padding: clamp(2rem, 4vw, 3.5rem) 0 2rem; }
@media (min-width: 1000px) {
  .directory {
    display: grid;
    grid-template-columns: 216px minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 3.5rem);
    align-items: start;
  }
}
.dir-side { display: flex; flex-direction: column; gap: 1rem; }
@media (min-width: 1000px) {
  .dir-side {
    position: sticky; top: 81px;
    max-height: calc(100vh - 100px);
    overflow-y: auto;
    padding-bottom: 1rem;
  }
}
.search-wrap { position: relative; }
#search {
  width: 100%; height: 38px; padding: 0 2.4rem 0 0.8rem;
  font: inherit; font-size: 13px; color: var(--ink);
  background: var(--paper); border: 1px solid var(--hairline-2);
  border-radius: var(--r-sm); outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
#search:focus { border-color: var(--ink-3); box-shadow: 0 0 0 3px rgba(0,0,0,0.04); }
#search::placeholder { color: var(--ink-3); }
.search-wrap kbd {
  position: absolute; right: 9px; top: 50%; transform: translateY(-50%);
  font-family: var(--mono); font-size: 10.5px; color: var(--ink-3);
  border: 1px solid var(--hairline); background: var(--paper-dim);
  border-radius: 4px; padding: 1px 6px;
}
.dir-side .label { margin: 0.4rem 0 0.1rem; }
.dir-nav { display: flex; flex-direction: column; gap: 1px; }
button.chip-filter {
  display: flex; justify-content: space-between; align-items: center; gap: 8px;
  font: inherit; font-size: 13px; font-weight: 450; text-align: left;
  color: var(--ink-2); background: none; border: 0;
  border-radius: 7px; padding: 5.5px 9px; cursor: pointer;
  transition: background 0.1s, color 0.1s;
}
button.chip-filter:hover { background: var(--fill); color: var(--ink); }
button.chip-filter.is-on { background: var(--fill); color: var(--ink); font-weight: 550; }
button.chip-filter .count { font-family: var(--mono); font-size: 10.5px; color: var(--ink-3); }
@media (max-width: 999px) {
  .dir-nav { flex-direction: row; flex-wrap: wrap; gap: 4px; }
  button.chip-filter { border: 1px solid var(--hairline); border-radius: 999px; padding: 4px 12px; }
  button.chip-filter .count { display: none; }
}

/* sections inside the grid column */
.cat-section { margin: 0 0 2.6rem; }
.cat-head {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.25rem 0.75rem;
  margin-bottom: 0.9rem;
}
.cat-section h2 { font-size: 15px; font-weight: 600; letter-spacing: -0.01em; margin: 0; }
.cat-count { color: var(--ink-3); font-family: var(--mono); font-size: 11px; }
.cat-blurb { color: var(--ink-3); font-size: 12.5px; margin: 0; flex-basis: 100%; }

.grid {
  display: grid; gap: 10px;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
}

/* ---------------------------------------------------------------- card */
.card {
  display: flex; flex-direction: column; gap: 8px;
  background: var(--paper);
  border: 1px solid var(--hairline);
  border-radius: var(--r);
  padding: 14px 15px 13px;
  transition: border-color 0.14s, box-shadow 0.14s;
  min-width: 0;
}
.card:hover { border-color: var(--hairline-2); box-shadow: var(--shadow-sm); }
.card-head { display: flex; align-items: center; gap: 10px; min-width: 0; }
.avatar {
  flex-shrink: 0;
  width: 34px; height: 34px; border-radius: 8px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--fill);
  border: 1px solid var(--hairline);
  font-size: 14px; font-weight: 600; color: var(--ink);
  letter-spacing: -0.02em;
  user-select: none;
}
img.avatar { object-fit: cover; background: var(--paper); }
.feature-name .avatar {
  width: 38px; height: 38px; border-radius: 9px;
  border-color: var(--inverse-line); background: var(--inverse-2);
  align-self: center;
}
.card-id { display: flex; flex-direction: column; min-width: 0; flex: 1; }
.card-name { font-weight: 550; font-size: 13.5px; letter-spacing: -0.008em; line-height: 1.3; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.card-vendor { font-size: 11.5px; color: var(--ink-3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.card-head .tag { flex-shrink: 0; font-size: 11px; }
.card-tag { color: var(--ink-2); font-size: 12.5px; line-height: 1.55; margin: 0; flex: 1; }
.card-meta {
  display: flex; justify-content: space-between; gap: 10px; align-items: baseline;
  font-family: var(--mono); font-size: 10.5px; color: var(--ink-3);
  border-top: 1px solid var(--hairline); padding-top: 9px; margin-top: 2px;
  min-width: 0;
}
.card-caps { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; }
.card-extra { flex-shrink: 0; }

.no-results { color: var(--ink-3); padding: 2rem 0; font-size: 13.5px; }

/* ----------------------------------------------------------- page head */
.page-head { padding: clamp(2.4rem, 5vw, 3.6rem) 0 1rem; }
.crumbs { margin: 0 0 1.5rem; display: flex; gap: 6px; }
.crumbs a { color: var(--ink-3); }
.crumbs a:hover { color: var(--ink); }
.crumbs span { color: var(--ink-2); }
.page-head h1 { font-size: clamp(1.7rem, 3.4vw, 2.3rem); }
.agent-hint {
  border: 1px solid var(--hairline); background: var(--paper-dim);
  padding: 0.8rem 1rem; border-radius: var(--r);
  color: var(--ink-2); font-size: 13px; max-width: 44rem; line-height: 1.6;
}
.agent-hint strong { color: var(--ink); }
.backlink { margin: 2.5rem 0 4rem; font-size: 13.5px; }

/* -------------------------------------------------------------- server */
.server-title { display: flex; align-items: center; gap: 14px; }
.server-title h1 { margin: 0; }
.server-title .avatar { width: 46px; height: 46px; border-radius: 11px; font-size: 19px; }
.server-title .tags { display: flex; gap: 12px; align-items: baseline; }
.server-meta-line {
  color: var(--ink-3); font-size: 12px; margin: 0.8rem 0 0.1rem;
  font-family: var(--mono); display: flex; flex-wrap: wrap; gap: 4px 14px;
}
.server-tag { font-size: 1.02rem; color: var(--ink-2); max-width: 42em; margin: 0.5rem 0 1.1rem; line-height: 1.6; text-wrap: pretty; }

.rate { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; }
.rate-label { color: var(--ink-3); font-size: 12px; }
.stars { display: inline-flex; }
.star {
  background: none; border: none; cursor: pointer;
  color: var(--hairline-2); font-size: 15px; padding: 0 2px; line-height: 1;
  transition: color 0.1s;
}
.stars:hover .star { color: var(--ink); }
.star:hover ~ .star { color: var(--hairline-2); }
.star.is-set { color: var(--ink); }
.rate-agg { font-family: var(--mono); font-size: 11px; color: var(--ink-3); }
.rate.is-rated .rate-label::after { content: " — thanks"; color: var(--ink); }

.server-body {
  display: grid; gap: clamp(1.6rem, 4vw, 3.2rem); margin: 1.4rem 0 4rem;
  grid-template-columns: 1fr;
}
@media (min-width: 920px) { .server-body { grid-template-columns: minmax(0, 1fr) 270px; } }
.server-main { min-width: 0; }
.server-main h2 {
  margin: 2.2rem 0 0.7rem; padding-top: 1.3rem;
  border-top: 1px solid var(--hairline);
  font-size: 14px; font-weight: 600; letter-spacing: -0.005em;
}
.server-main h2:first-child { margin-top: 0; padding-top: 0; border-top: 0; }
.server-main > p, .notes { color: var(--ink-2); max-width: 44rem; font-size: 13.5px; line-height: 1.7; }
.notes { background: var(--paper-dim); border: 1px solid var(--hairline); border-radius: var(--r); padding: 0.9rem 1.1rem; }

.code-block { margin: 0.8rem 0; border: 1px solid var(--hairline); border-radius: var(--r); overflow: hidden; }
.code-head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 7px 13px;
  background: var(--paper-dim);
  border-bottom: 1px solid var(--hairline);
}
.copy-btn {
  font-family: var(--sans); font-size: 11.5px; font-weight: 500; cursor: pointer;
  color: var(--ink-2); background: var(--paper); border: 1px solid var(--hairline);
  border-radius: 5px; padding: 2.5px 9px;
  transition: all 0.12s;
}
.copy-btn:hover { color: var(--ink); border-color: var(--hairline-2); }
.copy-btn.is-done { color: var(--green); border-color: var(--green); }
.code-block pre {
  margin: 0; padding: 12px 14px; overflow-x: auto;
  background: var(--paper);
  color: var(--ink); font-size: 12.3px; line-height: 1.65;
  font-family: var(--mono);
}
.connect-note { color: var(--ink-2); font-size: 13px; }
.auth-box {
  margin: 0.9rem 0; padding: 0.8rem 1rem; font-size: 13px; color: var(--ink-2);
  background: var(--paper-dim); border: 1px solid var(--hairline); border-radius: var(--r);
  line-height: 1.6;
}
.auth-box strong { color: var(--ink); }

.chips { display: flex; flex-wrap: wrap; gap: 5px; margin: 0.5rem 0 0.9rem; }
.chip {
  font-family: var(--mono); font-size: 11px;
  color: var(--ink-2); background: var(--fill);
  border-radius: 5px; padding: 2.5px 8px; white-space: nowrap;
  border: 0;
}

.server-side { display: flex; flex-direction: column; gap: 10px; }
.side-box {
  border: 1px solid var(--hairline);
  border-radius: var(--r); padding: 13px 15px;
  display: flex; flex-direction: column; gap: 5px;
}
.side-box a { font-size: 13px; color: var(--ink-2); }
.side-box a:hover { color: var(--ink); }
.side-caps { font-family: var(--mono); font-size: 11px; color: var(--ink-2); line-height: 1.9; }
.foot-h { margin: 0 0 3px; }
.grid-pairs { grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); }

.feedback summary { cursor: pointer; color: var(--ink-2); font-size: 13px; }
.feedback textarea {
  width: 100%; margin: 0.5rem 0; padding: 0.55rem 0.7rem;
  font: inherit; font-size: 12.5px; color: var(--ink);
  background: var(--paper); border: 1px solid var(--hairline-2); border-radius: var(--r-sm);
  resize: vertical; outline: none;
}
.feedback textarea:focus { border-color: var(--ink-3); }
.feedback .btn { padding: 5px 14px; font-size: 12.5px; }
.feedback-done { color: var(--green); font-size: 12px; }

/* --------------------------------------------------------------- stack */
.starter {
  margin: 1.4rem 0 3.2rem; padding: clamp(1.3rem, 2.6vw, 1.8rem);
  border: 1px solid var(--hairline); border-radius: var(--r-lg);
  background: var(--paper-dim);
}
.starter h2 { font-size: 15px; font-weight: 600; margin: 0; }
.starter > p { color: var(--ink-2); max-width: 46em; font-size: 13px; margin: 0.4rem 0 1.1rem; }
.stage { margin: 2.8rem 0; }
.stage-head {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.4rem 0.8rem;
  margin-bottom: 0.8rem; padding-top: 1.1rem; border-top: 1px solid var(--hairline);
}
.stage-head h2 { font-size: 16px; font-weight: 600; margin: 0; letter-spacing: -0.01em; }
.stage-num { font-family: var(--mono); color: var(--ink-3); font-size: 11px; }
.stage-head .cat-blurb { flex-basis: 100%; }
.stage-cat { margin: 1.1rem 0; }
.stage-cat h3 { font-size: 12.5px; font-weight: 600; margin: 0 0 0.35rem; }
.stage-list { margin: 0; padding-left: 1.1rem; color: var(--ink-2); font-size: 13px; }
.stage-list li { margin: 0.4rem 0; line-height: 1.6; }
.stage-list a { font-weight: 500; }
.stage-list .tag-official { font-size: 11px; margin-left: 2px; }

/* ------------------------------------------------------------- agents */
.agents-doc { max-width: 46rem; padding-bottom: 3.5rem; }
.agents-doc h2 {
  font-size: 14px; font-weight: 600; margin: 2.2rem 0 0.7rem;
  padding-top: 1.3rem; border-top: 1px solid var(--hairline);
}
.agents-doc h2:first-of-type { margin-top: 0.6rem; }
.agents-doc > p { color: var(--ink-2); font-size: 13.5px; line-height: 1.7; }
.agents-list { color: var(--ink-2); padding-left: 1.1rem; font-size: 13.5px; }
.agents-list li { margin: 0.5rem 0; line-height: 1.65; }
.agents-list strong, .agents-doc strong { color: var(--ink); font-weight: 600; }

/* ----------------------------------------------------------------- faq */
.faq { margin: 4rem 0 2rem; padding-top: 2rem; border-top: 1px solid var(--hairline); }
.faq h2 { font-size: 1.2rem; font-weight: 600; letter-spacing: -0.015em; margin: 0 0 1.4rem; }
.faq-grid { display: grid; gap: 1.8rem 2.5rem; grid-template-columns: 1fr; }
@media (min-width: 800px) { .faq-grid { grid-template-columns: 1fr 1fr; } }
.faq-item h3 { font-size: 13.5px; font-weight: 600; margin: 0 0 0.35rem; letter-spacing: -0.005em; }
.faq-item p { margin: 0; color: var(--ink-2); font-size: 13px; line-height: 1.65; }

/* ------------------------------------------------------------- footer */
.site-foot {
  margin-top: 4.5rem; border-top: 1px solid var(--hairline);
  padding: 2.8rem clamp(1.25rem, 4vw, 2.5rem) 3.2rem;
}
.foot-grid {
  max-width: 1200px; margin: 0 auto;
  display: grid; gap: 2rem; grid-template-columns: 1fr;
}
@media (min-width: 760px) { .foot-grid { grid-template-columns: 2fr 1fr 1fr; } }
.foot-brand { font-weight: 600; font-size: 13.5px; margin: 0 0 0.45rem; }
.foot-blurb { color: var(--ink-3); font-size: 12.5px; max-width: 26rem; margin: 0; line-height: 1.65; }
.foot-blurb a { color: var(--ink-2); }
.foot-col { display: flex; flex-direction: column; gap: 0.5rem; }
.foot-col a { color: var(--ink-2); font-size: 13px; }
.foot-col a:hover { color: var(--ink); }
.foot-meta {
  max-width: 1200px; margin: 2.2rem auto 0; color: var(--ink-3);
  font-size: 11px; border-top: 1px solid var(--hairline); padding-top: 1.3rem;
  font-family: var(--mono);
}

@media (max-width: 640px) {
  .site-nav a { font-size: 12px; padding: 5px 7px; }
  .nav-gh { display: none; }
}