/* ============================================================
   mcp.index — Design tokens + shared components
   Import this file once in every page.
   v1.0 — May 2026
   ============================================================ */

@import url('https://cdn.jsdelivr.net/npm/@fontsource/space-grotesk@latest/400.css');
@import url('https://cdn.jsdelivr.net/npm/@fontsource/space-grotesk@latest/500.css');
@import url('https://cdn.jsdelivr.net/npm/@fontsource/space-mono@latest/400.css');

:root {
  --bg: #FCFBF9;
  --bg-pure: #FFFFFF;
  --bg-surface: #F7F5F2;
  --ink: #0A0A0A;
  --text-secondary: #525252;
  --text-tertiary: #737373;
  --text-disabled: #A3A3A3;
  --border: #E5E5E5;
  --border-strong: #D4D4D4;
  --border-subtle: #F0F0F0;
  --accent: #C8542B;
  --accent-bg: rgba(200, 84, 43, 0.05);
  --accent-border: rgba(200, 84, 43, 0.3);
  --status-full: #15803D;
  --status-full-bg: rgba(21, 128, 61, 0.05);
  --status-full-border: rgba(21, 128, 61, 0.3);
  --status-partial: #D97706;
  --status-partial-bg: rgba(217, 119, 6, 0.05);
  --status-partial-border: rgba(217, 119, 6, 0.3);
  --status-none: #A3A3A3;
  --status-deprecated: #DC2626;
  --status-deprecated-bg: rgba(220, 38, 38, 0.05);
  --status-deprecated-border: rgba(220, 38, 38, 0.3);
  --font-sans: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'Space Mono', 'JetBrains Mono', Menlo, monospace;
  --texture: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='22' height='22'%3E%3Ccircle cx='1.5' cy='1.5' r='0.9' fill='%230a0a0a' fill-opacity='0.07'/%3E%3C/svg%3E");
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background-color: var(--bg);
  background-image: var(--texture);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.55;
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

.container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 760px; margin: 0 auto; padding: 0 24px; }

/* ============ NAV ============ */
nav.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(252, 251, 249, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 0.5px solid var(--border);
}
.nav-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: -0.01em;
  white-space: nowrap;
  color: var(--ink);
}
.brand .dot { color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 400;
  transition: color 0.15s;
}
.nav-links a:hover, .nav-links a.active { color: var(--ink); }
.nav-right { display: flex; align-items: center; gap: 12px; }
.nav-search {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-tertiary);
  background: var(--bg-pure);
  border: 0.5px solid var(--border);
  padding: 6px 10px;
  border-radius: 6px;
  letter-spacing: 0.04em;
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-cta {
  background: var(--ink);
  color: var(--bg-pure);
  font-size: 12px;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 6px;
  border: 0.5px solid var(--ink);
  letter-spacing: -0.005em;
  transition: background 0.15s;
}
.nav-cta:hover { background: var(--accent); border-color: var(--accent); }

/* ============ BREADCRUMBS ============ */
.breadcrumbs {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
  text-transform: uppercase;
  padding: 20px 24px 0;
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.breadcrumbs a { color: var(--text-secondary); transition: color 0.15s; }
.breadcrumbs a:hover { color: var(--accent); }
.breadcrumbs .sep { color: var(--text-disabled); }

/* ============ SECTION ============ */
section { padding: 80px 24px; }
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 32px;
  gap: 24px;
  flex-wrap: wrap;
}
.section-head .title-block { max-width: 620px; }
.section-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 8px;
}
.section-label .num { color: var(--accent); }
h2.section-title {
  font-size: 28px;
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.018em;
  margin-bottom: 8px;
}
.section-sub {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.55;
  max-width: 540px;
}
.section-link {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink);
  transition: color 0.15s;
}
.section-link:hover { color: var(--accent); }
.section-link .arr { color: var(--accent); margin-left: 4px; }

/* ============ MONO LABELS ============ */
.mono {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}
.mono .num { color: var(--accent); }

/* ============ PILLS ============ */
.pill {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.05em;
  padding: 3px 7px;
  border-radius: 4px;
  text-transform: uppercase;
  border: 0.5px solid;
  display: inline-block;
  line-height: 1.3;
}
.pill-official { color: var(--status-full); border-color: var(--status-full-border); background: var(--status-full-bg); }
.pill-community { color: var(--text-secondary); border-color: rgba(82, 82, 82, 0.3); background: rgba(82, 82, 82, 0.04); }
.pill-enterprise { color: var(--accent); border-color: var(--accent-border); background: var(--accent-bg); }
.pill-reference { color: var(--text-tertiary); border-color: var(--border-strong); background: var(--bg-surface); }
.pill-deprecated { color: var(--status-deprecated); border-color: var(--status-deprecated-border); background: var(--status-deprecated-bg); }
.pill-verdict { color: var(--accent); border-color: var(--accent-border); background: var(--accent-bg); }

/* ============ COMPATIBILITY DOTS (SIGNATURE) ============ */
.compat-block { margin-top: 2px; }
.compat-label {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 6px;
}
.compat-row { display: flex; gap: 8px; align-items: center; }
.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; }
.dot-full { background: var(--status-full); }
.dot-partial { background: var(--status-partial); }
.dot-none { background: var(--status-none); }

/* ============ BUTTONS ============ */
.btn {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  padding: 10px 18px;
  border-radius: 6px;
  border: 0.5px solid;
  cursor: pointer;
  transition: all 0.15s;
  line-height: 1.2;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.btn-primary { background: var(--ink); color: var(--bg-pure); border-color: var(--ink); }
.btn-primary:hover { background: var(--accent); border-color: var(--accent); }
.btn-secondary { background: var(--bg-pure); color: var(--ink); border-color: var(--border-strong); }
.btn-secondary:hover { border-color: var(--ink); }
.btn-ghost { background: transparent; color: var(--ink); border-color: transparent; }
.btn-ghost:hover { color: var(--accent); }
.btn-block { display: flex; justify-content: center; width: 100%; }

/* ============ SERVER CARD ============ */
.server-card {
  background: var(--bg-pure);
  border: 0.5px solid var(--border);
  border-radius: 10px;
  padding: 16px 16px 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color 0.15s;
}
.server-card:hover { border-color: var(--accent); }
.server-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.server-name { font-weight: 500; font-size: 15px; letter-spacing: -0.005em; }
.server-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  flex: 1;
}
.server-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.server-tag {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-secondary);
  background: var(--bg-surface);
  padding: 2px 6px;
  border-radius: 3px;
  border: 0.5px solid var(--border-subtle);
}
.server-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 0.5px solid var(--border-subtle);
  padding-top: 10px;
  margin-top: 2px;
}
.server-vol {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink);
  font-weight: 400;
}
.server-vol .unit { color: var(--text-tertiary); }
.server-cta {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
}

/* ============ CALLOUT ============ */
.callout {
  padding: 18px 22px;
  background: var(--accent-bg);
  border-left: 2px solid var(--accent);
  margin: 24px 0;
}
.callout-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 6px;
}
.callout-text { font-size: 14px; color: var(--ink); line-height: 1.55; }

/* ============ CODE BLOCKS ============ */
.code-block {
  background: var(--ink);
  color: #E5E5E5;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.7;
  padding: 18px 20px;
  border-radius: 8px;
  overflow-x: auto;
  margin: 16px 0;
  white-space: pre;
}
.code-block .c-comment { color: #737373; }
.code-block .c-key { color: #C8542B; }
.code-block .c-str { color: #15803D; }
code.inline {
  font-family: var(--font-mono);
  font-size: 0.92em;
  background: var(--bg-surface);
  padding: 1px 6px;
  border-radius: 3px;
  border: 0.5px solid var(--border);
  color: var(--ink);
}

/* ============ INPUTS ============ */
.search-wrap { max-width: 620px; position: relative; }
.search-bar {
  width: 100%;
  background: var(--bg-pure);
  border: 0.5px solid var(--border-strong);
  border-radius: 8px;
  padding: 14px 16px 14px 44px;
  font-size: 14px;
  font-family: var(--font-sans);
  color: var(--ink);
  outline: none;
  transition: border-color 0.15s;
}
.search-bar:focus { border-color: var(--ink); }
.search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 18px;
  color: var(--text-tertiary);
}

/* ============ FOOTER ============ */
footer.site-footer {
  background: var(--bg-pure);
  padding: 56px 24px 32px;
  border-top: 0.5px solid var(--border);
  margin-top: 64px;
}
.footer-top {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.6fr repeat(3, 1fr);
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 0.5px solid var(--border);
  margin-bottom: 24px;
}
.footer-brand {
  font-size: 18px;
  font-weight: 500;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}
.footer-brand .dot { color: var(--accent); }
.footer-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.55;
  max-width: 380px;
}
.footer-col-title {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 14px;
}
.footer-links { display: flex; flex-direction: column; gap: 9px; }
.footer-links a { font-size: 13px; color: var(--ink); transition: color 0.15s; }
.footer-links a:hover { color: var(--accent); }
.footer-bottom { max-width: 1180px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.footer-legal { font-size: 11px; color: var(--text-tertiary); line-height: 1.55; }
.footer-disambig {
  font-size: 11px;
  color: var(--text-tertiary);
  line-height: 1.6;
  font-style: italic;
  border-top: 0.5px solid var(--border-subtle);
  padding-top: 12px;
  margin-top: 4px;
}

/* ============ NEWSLETTER (REUSABLE) ============ */
.newsletter-cta {
  background: var(--ink);
  color: var(--bg-pure);
  border-radius: 12px;
  padding: 36px;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 32px;
  align-items: center;
}
.newsletter-cta .label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}
.newsletter-cta h3 {
  font-size: 24px;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.018em;
  margin-bottom: 10px;
}
.newsletter-cta p { font-size: 13px; color: rgba(229, 229, 229, 0.7); line-height: 1.55; }
.email-form { display: flex; flex-direction: column; gap: 10px; }
.email-input {
  background: rgba(255, 255, 255, 0.08);
  border: 0.5px solid rgba(255, 255, 255, 0.2);
  color: var(--bg-pure);
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 13px;
  font-family: var(--font-sans);
  outline: none;
  transition: border-color 0.15s;
}
.email-input:focus { border-color: var(--accent); }
.email-input::placeholder { color: rgba(229, 229, 229, 0.5); }
.subscribe-btn {
  background: var(--accent);
  color: var(--bg-pure);
  font-size: 12px;
  font-weight: 500;
  font-family: var(--font-mono);
  padding: 12px;
  border-radius: 8px;
  border: 0;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: background 0.15s;
}
.subscribe-btn:hover { background: #B14B25; }

/* ============ RESPONSIVE ============ */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-search { display: none; }
  section { padding: 56px 24px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px 24px; }
  .newsletter-cta { grid-template-columns: 1fr; padding: 28px; gap: 20px; }
}

@media (max-width: 560px) {
  .footer-top { grid-template-columns: 1fr; }
  h2.section-title { font-size: 22px; }
}