:root {
  color-scheme: light;
  --cr-font-sans: "Onest Variable", "Segoe UI", Arial, sans-serif;
  --cr-font-mono: "JetBrains Mono Variable", "SFMono-Regular", Consolas, monospace;
  --ink: #111b29;
  --ink-soft: #526477;
  --ink-faint: #687b90;
  --paper: #f7f8fa;
  --surface: #ffffff;
  --surface-soft: #eef2f6;
  --line: #d2dae5;
  --line-strong: #9dabb9;
  --green: #173f6b;
  --green-dark: #0e1929;
  --green-soft: #e8f0fb;
  --success: #17623d;
  --success-soft: #e5f4eb;
  --success-line: #91c5a8;
  --amber: #946100;
  --amber-soft: #fff4d8;
  --red: #a52622;
  --red-soft: #fff0ef;
  --shadow: 0 18px 48px rgba(14, 25, 41, .08);
  --radius: 12px;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html { min-width: 320px; scroll-behavior: smooth; }

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--cr-font-sans);
  font-size: 16px;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}

button,
input,
select { font: inherit; }

button,
a,
input,
select { touch-action: manipulation; }

a { color: var(--green-dark); }

code {
  font-family: var(--cr-font-mono);
  font-size: .86em;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 8px;
  left: 8px;
  padding: 10px 14px;
  color: #fff;
  background: var(--green-dark);
  border-radius: 6px;
  transform: translateY(-150%);
}

.skip-link:focus { transform: translateY(0); }

:focus-visible {
  outline: 3px solid rgba(8, 116, 81, .42);
  outline-offset: 3px;
}

.connections-main {
  width: min(1260px, calc(100% - 48px));
  margin: 0 auto;
  padding: 58px 0 46px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--green-dark);
  font: 760 11px/1.3 var(--cr-font-mono);
  letter-spacing: .13em;
  text-transform: uppercase;
}

.connections-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(260px, .7fr);
  gap: clamp(34px, 7vw, 96px);
  align-items: end;
  padding-bottom: 36px;
}

.connections-hero h1 {
  margin: 0;
  max-width: 840px;
  font-size: clamp(42px, 6vw, 76px);
  font-weight: 720;
  letter-spacing: -.055em;
  line-height: .98;
}

.hero-copy {
  max-width: 820px;
  margin: 24px 0 0;
  color: var(--ink-soft);
  font-size: clamp(17px, 1.8vw, 21px);
}

.hero-context {
  display: grid;
  gap: 8px;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-top: 3px solid var(--green);
  border-radius: var(--radius);
}

.hero-context .eyebrow { margin-bottom: 2px; }
.hero-context strong { font-size: 18px; }

.hero-context span {
  color: var(--ink-soft);
  font: 650 11px/1.5 var(--cr-font-mono);
  overflow-wrap: anywhere;
}

.truth-register {
  display: grid;
  grid-template-columns: minmax(220px, .8fr) minmax(0, 2fr);
  align-items: center;
  gap: 28px;
  margin: 10px 0 28px;
  padding: 22px 24px;
  background: #0e1929;
  border-radius: var(--radius);
  color: #f4f7fb;
}

.truth-register .eyebrow { color: #9ec8f2; }

.truth-register dl {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: rgba(255, 255, 255, .16);
}

.truth-register dl div {
  display: grid;
  gap: 4px;
  padding: 10px 13px;
  background: #0e1929;
}

.truth-register dt {
  color: #b8c6d6;
  font: 600 9px/1.3 var(--cr-font-mono);
  overflow-wrap: anywhere;
}

.truth-register dd {
  margin: 0;
  color: #9ec8f2;
  font: 700 13px/1.3 var(--cr-font-mono);
}

.error-summary {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  margin: 0 0 28px;
  padding: 22px 24px;
  background: var(--red-soft);
  border: 1px solid #df9995;
  border-left: 5px solid var(--red);
  border-radius: 8px;
}

.error-summary .eyebrow { color: var(--red); }
.error-summary h2 { margin: 0 0 7px; font-size: 20px; }
.error-summary p { margin: 0; color: #682b28; }
.error-summary code { display: block; margin-top: 8px; color: var(--red); }
.error-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

.session-panel {
  display: grid;
  grid-template-columns: minmax(260px, .85fr) minmax(360px, 1.15fr);
  gap: 38px;
  margin-bottom: 28px;
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.session-copy h2 { margin: 0 0 10px; font-size: 25px; letter-spacing: -.03em; }
.session-copy p:last-child { margin: 0; color: var(--ink-soft); }

.auth-form { display: grid; align-content: center; gap: 8px; }
.auth-form > label { font-weight: 700; }

.auth-control {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
}

.auth-form small { color: var(--ink-faint); }
.auth-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 6px; }

.connection-tabs {
  position: sticky;
  z-index: 30;
  top: var(--cr-suite-height, 72px);
  display: flex;
  gap: 6px;
  overflow-x: auto;
  margin: 0 -10px 36px;
  padding: 10px;
  background: rgba(247, 250, 248, .96);
  border-bottom: 1px solid var(--line);
  scrollbar-width: thin;
}

.connection-tabs a {
  display: inline-flex;
  min-height: 42px;
  flex: 0 0 auto;
  align-items: center;
  padding: 0 15px;
  color: var(--ink-soft);
  border: 1px solid transparent;
  border-radius: 7px;
  font-size: 13px;
  font-weight: 680;
  text-decoration: none;
}

.connection-tabs a:hover { color: var(--green-dark); background: var(--surface-soft); }

.connection-tabs a[aria-current="page"] {
  color: #fff;
  background: var(--green-dark);
  border-color: var(--green-dark);
}

.connection-page { min-height: 420px; }

.page-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, .75fr);
  gap: 40px;
  align-items: end;
  margin-bottom: 24px;
}

.page-heading h2 {
  margin: 0;
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 710;
  letter-spacing: -.045em;
  line-height: 1.05;
}

.page-heading > p { margin: 0; color: var(--ink-soft); }

.status-badge,
.truth-label {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  justify-content: center;
  padding: 7px 10px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  font: 750 10px/1.25 var(--cr-font-mono);
  letter-spacing: .06em;
  text-transform: uppercase;
}

.page-heading > .status-badge { justify-self: end; }
.status-badge.neutral { color: var(--ink-soft); background: var(--surface); }
.status-badge.success { color: var(--success); background: var(--success-soft); border-color: var(--success-line); }
.status-badge.warning { color: var(--amber); background: var(--amber-soft); border-color: #d5b46b; }
.status-badge.missing { color: var(--red); background: var(--red-soft); border-color: #dc9995; }
.status-badge.unavailable { color: var(--ink-soft); background: var(--surface); border-color: var(--line-strong); }
.truth-label.implemented { color: var(--success); background: var(--success-soft); border-color: var(--success-line); }
.truth-label.blocked { color: var(--amber); background: var(--amber-soft); border-color: #d5b46b; }
.truth-label.missing { color: var(--red); background: var(--red-soft); border-color: #dc9995; }
.truth-label.unavailable { color: var(--ink-soft); background: var(--surface); border-color: var(--line-strong); }

.connection-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.connection-card {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr) auto;
  grid-template-areas: "mark copy status" "mark detail detail";
  gap: 10px 18px;
  align-items: center;
  min-height: 150px;
  padding: 23px;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
  box-shadow: 0 8px 26px rgba(17, 48, 38, .04);
  transition: border-color 150ms ease, box-shadow 150ms ease, transform 150ms ease;
}

.connection-card:last-child:nth-child(odd) { grid-column: 1 / -1; }
.connection-card:hover { border-color: #7aaf99; box-shadow: var(--shadow); transform: translateY(-2px); }
.connection-mark { grid-area: mark; display: grid; width: 56px; height: 56px; place-items: center; color: var(--green-dark); border: 1px solid #9ebcaf; border-radius: 10px; font: 700 12px/1 var(--cr-font-mono); }
.connection-card-copy { grid-area: copy; display: grid; gap: 3px; }
.connection-card-copy b { font-size: 18px; }
.connection-card-copy small { color: var(--ink-faint); }
.connection-card .status-badge { grid-area: status; }
.card-detail { grid-area: detail; color: var(--ink-soft); font-size: 13px; }

.boundary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.boundary-grid article {
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-top: 3px solid var(--green);
  border-radius: var(--radius);
}

.boundary-grid article:last-child { border-top-color: var(--red); }
.boundary-grid h3 { margin: 18px 0 7px; font-size: 20px; }
.boundary-grid p { margin: 0; color: var(--ink-soft); }

.connection-form {
  padding: clamp(22px, 4vw, 40px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.form-intro {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: end;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.form-intro h3 { margin: 0; font-size: 25px; letter-spacing: -.03em; }
.form-intro > p { max-width: 430px; margin: 0; color: var(--ink-soft); text-align: right; }

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 24px;
}

.field { display: grid; align-content: start; gap: 7px; }
.field > span { color: var(--ink); font-size: 13px; font-weight: 700; }
.field > span small { color: var(--ink-faint); font-weight: 500; }

input,
select {
  width: 100%;
  min-height: 46px;
  padding: 10px 12px;
  color: var(--ink);
  background: #fbfdfc;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
}

input:hover,
select:hover { border-color: #6e9484; }

input:focus,
select:focus { background: #fff; border-color: var(--green); outline: 3px solid rgba(23, 63, 107, .18); }

input[aria-invalid="true"],
select[aria-invalid="true"] { background: var(--red-soft); border-color: var(--red); }

.production-fields {
  margin: 28px 0 0;
  padding: 22px;
  background: var(--amber-soft);
  border: 1px solid #d5b46b;
  border-radius: 8px;
}

.production-fields legend { padding: 0 8px; color: var(--amber); font-weight: 750; }
.production-fields > p { margin: 0; color: #6b531d; }

.form-error {
  margin: 22px 0 0;
  padding: 12px 14px;
  color: #6d2522;
  background: var(--red-soft);
  border-left: 4px solid var(--red);
}

.form-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 26px;
}

.form-actions > span { min-width: 160px; color: var(--ink-soft); font-size: 13px; }

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  border: 1px solid transparent;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 720;
}

.button.primary { color: #fff; background: var(--green); border-color: var(--green); }
.button.primary:hover { background: var(--green-dark); border-color: var(--green-dark); }
.button.secondary { color: var(--green-dark); background: var(--surface); border-color: #87a99a; }
.button.secondary:hover { background: var(--green-soft); }
.button.quiet { color: var(--ink-soft); background: transparent; border-color: var(--line); }
.button.danger { color: var(--red); }
.button:disabled { color: #85948d; background: #edf1ef; border-color: #d5ded9; cursor: not-allowed; }

.connection-result {
  min-height: 72px;
  margin-top: 22px;
  padding: 17px 18px;
  background: var(--surface-soft);
  border: 1px dashed var(--line-strong);
  border-radius: 8px;
}

.connection-result:empty::before {
  color: var(--ink-faint);
  content: "После сохранения здесь появятся state, version и подтверждённая безопасная граница.";
  font-size: 13px;
}

.result-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin: 0; }
.result-grid div { display: grid; gap: 3px; }
.result-grid dt { color: var(--ink-faint); font: 650 9px/1.3 var(--cr-font-mono); text-transform: uppercase; }
.result-grid dd { margin: 0; color: var(--ink); font: 650 12px/1.45 var(--cr-font-mono); overflow-wrap: anywhere; }

.noscript-note { padding: 14px; color: #6b531d; background: var(--amber-soft); border: 1px solid #d5b46b; }

.connections-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  margin-top: 56px;
  padding-top: 24px;
  color: var(--ink-faint);
  border-top: 1px solid var(--line);
  font: 650 11px/1.5 var(--cr-font-mono);
}

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

@media (max-width: 940px) {
  .connections-main { width: min(100% - 32px, 1260px); padding-top: 38px; }
  .connections-hero,
  .truth-register,
  .session-panel { grid-template-columns: 1fr; }
  .truth-register dl { grid-template-columns: repeat(2, 1fr); }
  .connection-card-grid { grid-template-columns: 1fr; }
  .connection-card:last-child:nth-child(odd) { grid-column: auto; }
  .result-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 680px) {
  .connections-main { width: min(100% - 24px, 1260px); padding-top: 28px; }
  .connections-hero h1 { font-size: clamp(40px, 14vw, 58px); }
  .truth-register dl,
  .boundary-grid,
  .form-grid,
  .page-heading,
  .form-intro { grid-template-columns: 1fr; }
  .page-heading { gap: 16px; }
  .page-heading > .status-badge { justify-self: start; }
  .form-intro > p { text-align: left; }
  .auth-control { grid-template-columns: 1fr; }
  .error-summary { grid-template-columns: 1fr; }
  .connection-card { grid-template-columns: 48px minmax(0, 1fr); grid-template-areas: "mark copy" "status status" "detail detail"; }
  .connection-mark { width: 48px; height: 48px; }
  .result-grid { grid-template-columns: 1fr; }
  .connections-footer { display: grid; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}