:root {
  color-scheme: light;
  --bridge-ink: #10243d;
  --bridge-muted: #5f6f82;
  --bridge-line: #d8e1ea;
  --bridge-paper: #ffffff;
  --bridge-canvas: #f3f6f9;
  --bridge-teal: #08796d;
  --bridge-teal-soft: #e7f5f2;
  --bridge-gold: #b77b08;
  --bridge-gold-soft: #fff4d6;
  --bridge-coral: #b84747;
  --bridge-coral-soft: #fff0ef;
  --bridge-navy: #173d64;
  --bridge-shadow: 0 12px 30px rgba(16, 36, 61, 0.09);
}

* { box-sizing: border-box; }
html { background: var(--bridge-canvas); scroll-behavior: smooth; }
body.bridge-page {
  margin: 0;
  min-width: 0;
  overflow-x: hidden;
  background: var(--bridge-canvas);
  color: var(--bridge-ink);
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
}
body.bridge-page button,
body.bridge-page input,
body.bridge-page select { font: inherit; }
body.bridge-page button,
body.bridge-page summary,
body.bridge-page a { -webkit-tap-highlight-color: transparent; }
body.bridge-page [hidden] { display: none !important; }

.bridge-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  min-height: 70px;
  padding: 12px max(24px, calc((100vw - 1240px) / 2));
  border-bottom: 1px solid var(--bridge-line);
  background: var(--bridge-paper);
}
.bridge-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--bridge-ink);
  text-decoration: none;
}
.bridge-brand span {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 8px;
  background: var(--bridge-navy);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
}
.bridge-brand strong { font-size: 19px; }
.bridge-nav nav { display: flex; align-items: center; gap: 22px; }
.bridge-nav nav a {
  color: var(--bridge-muted);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}
.bridge-nav nav a:hover,
.bridge-nav nav a:focus-visible { color: var(--bridge-teal); }

.bridge-page main { min-width: 0; }
.bridge-intro {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(280px, 0.65fr);
  gap: 44px;
  align-items: center;
  padding: 38px max(24px, calc((100vw - 1240px) / 2)) 34px;
  border-bottom: 1px solid var(--bridge-line);
  background: var(--bridge-paper);
}
.bridge-kicker {
  display: block;
  margin-bottom: 7px;
  color: var(--bridge-teal);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0;
  text-transform: uppercase;
}
.bridge-intro h1 {
  max-width: 780px;
  margin: 0;
  color: var(--bridge-ink);
  font-size: clamp(32px, 4vw, 54px);
  line-height: 1.04;
  letter-spacing: 0;
}
.bridge-intro > div > p {
  max-width: 780px;
  margin: 16px 0 0;
  color: var(--bridge-muted);
  font-size: 18px;
}
.bridge-intro aside {
  padding: 19px 20px;
  border-left: 4px solid var(--bridge-gold);
  background: var(--bridge-gold-soft);
}
.bridge-intro aside span,
.bridge-intro aside small { display: block; color: #66552f; }
.bridge-intro aside span { font-size: 12px; font-weight: 800; text-transform: uppercase; }
.bridge-intro aside strong { display: block; margin: 3px 0 6px; font-size: 27px; line-height: 1.15; }
.bridge-intro aside small { font-size: 12px; }

.bridge-tool,
.bridge-method,
.bridge-sources {
  width: min(1240px, calc(100% - 48px));
  margin-inline: auto;
}
.bridge-tool {
  margin-top: 28px;
  border: 1px solid var(--bridge-line);
  border-radius: 8px;
  background: var(--bridge-paper);
  box-shadow: var(--bridge-shadow);
  overflow: hidden;
}
.bridge-tool__head {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  padding: 18px 20px;
  border-bottom: 1px solid var(--bridge-line);
  background: #f9fbfc;
}
.bridge-tool__head > img {
  width: 72px;
  height: 72px;
  border: 3px solid #fff;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 0 0 1px var(--bridge-line);
}
.bridge-tool__head h2 { margin: 0; font-size: 22px; line-height: 1.2; }
.bridge-tool__head p { margin: 5px 0 0; color: var(--bridge-muted); font-size: 14px; }
.bridge-tool__head ol {
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.bridge-tool__head li {
  display: flex;
  min-width: 88px;
  min-height: 42px;
  align-items: center;
  gap: 7px;
  padding: 8px 10px;
  border: 1px solid var(--bridge-line);
  border-radius: 6px;
  color: var(--bridge-muted);
  font-size: 12px;
  font-weight: 750;
}
.bridge-tool__head li span {
  display: grid;
  width: 23px;
  height: 23px;
  place-items: center;
  border-radius: 50%;
  background: #e8edf2;
  color: var(--bridge-muted);
}
.bridge-tool__head li.is-active { border-color: #7dc4bb; background: var(--bridge-teal-soft); color: var(--bridge-teal); }
.bridge-tool__head li.is-active span,
.bridge-tool__head li.is-done span { background: var(--bridge-teal); color: #fff; }
.bridge-tool__head li.is-done { color: var(--bridge-teal); }

.bridge-tool__workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(400px, 0.92fr);
  align-items: start;
  min-width: 0;
}
.bridge-form,
.bridge-output { min-width: 0; padding: 22px; }
.bridge-form { border-right: 1px solid var(--bridge-line); }
.bridge-output { background: #f8fafb; }
.bridge-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.bridge-fields > label,
.bridge-advanced__grid > label,
.bridge-contact > label {
  display: grid;
  min-width: 0;
  gap: 6px;
  color: var(--bridge-ink);
  font-size: 13px;
  font-weight: 760;
}
.bridge-fields label > span,
.bridge-advanced__grid label > span,
.bridge-contact label > span { color: var(--bridge-muted); font-size: 11px; font-weight: 650; }
.bridge-fields input,
.bridge-fields select,
.bridge-advanced__grid input,
.bridge-advanced__grid select,
.bridge-contact input {
  width: 100%;
  min-width: 0;
  min-height: 44px;
  padding: 9px 11px;
  border: 1px solid #b9c7d5;
  border-radius: 6px;
  background: #fff;
  color: var(--bridge-ink);
}
.bridge-fields input:focus,
.bridge-fields select:focus,
.bridge-advanced__grid input:focus,
.bridge-advanced__grid select:focus,
.bridge-contact input:focus {
  outline: 3px solid rgba(8, 121, 109, 0.16);
  border-color: var(--bridge-teal);
}
.bridge-fields fieldset {
  grid-column: 1 / -1;
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}
.bridge-fields legend { margin-bottom: 6px; font-size: 13px; font-weight: 760; }
.bridge-segments {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}
.bridge-segments label { min-width: 0; cursor: pointer; }
.bridge-segments input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.bridge-segments span {
  display: grid;
  min-height: 54px;
  place-items: center;
  padding: 7px;
  border: 1px solid #b9c7d5;
  border-radius: 6px;
  background: #fff;
  color: var(--bridge-ink);
  font-size: 15px;
  font-weight: 800;
  text-align: center;
}
.bridge-segments small { display: block; color: var(--bridge-muted); font-size: 10px; font-weight: 650; }
.bridge-segments input:checked + span { border-color: var(--bridge-teal); background: var(--bridge-teal-soft); color: var(--bridge-teal); }
.bridge-segments input:focus-visible + span { outline: 3px solid rgba(8, 121, 109, 0.18); }

.bridge-advanced {
  margin-top: 16px;
  border: 1px solid var(--bridge-line);
  border-radius: 6px;
  background: #f8fafb;
}
.bridge-advanced summary {
  min-height: 44px;
  padding: 11px 13px;
  color: var(--bridge-navy);
  cursor: pointer;
  font-size: 13px;
  font-weight: 800;
}
.bridge-advanced > p { margin: 0; padding: 0 13px 12px; color: var(--bridge-muted); font-size: 12px; }
.bridge-advanced__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  padding: 0 13px 14px;
}
.bridge-primary,
.bridge-secondary {
  min-height: 44px;
  border: 0;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 820;
}
.bridge-primary {
  width: 100%;
  margin-top: 16px;
  padding: 11px 18px;
  background: var(--bridge-teal);
  color: #fff;
}
.bridge-primary:hover,
.bridge-primary:focus-visible { background: #05665d; }
.bridge-primary:disabled { cursor: wait; opacity: 0.65; }
.bridge-secondary {
  padding: 10px 15px;
  background: var(--bridge-gold);
  color: #fff;
}
.bridge-form__note,
.bridge-contact__privacy { margin: 8px 0 0; color: var(--bridge-muted); font-size: 11px; text-align: center; }
.bridge-status { margin: 10px 0 0; padding: 10px 12px; border-left: 3px solid var(--bridge-coral); background: var(--bridge-coral-soft); color: #7f2d2d; font-size: 13px; }

.bridge-empty {
  display: grid;
  min-height: 420px;
  align-content: center;
  justify-items: center;
  padding: 32px;
  color: var(--bridge-muted);
  text-align: center;
}
.bridge-empty span { color: var(--bridge-teal); font-size: 12px; font-weight: 800; text-transform: uppercase; }
.bridge-empty strong { margin-top: 8px; color: var(--bridge-ink); font-size: 27px; }
.bridge-empty p { max-width: 390px; margin: 8px 0 0; }
.bridge-result__heading h3 { margin: 0; font-size: 23px; line-height: 1.2; }
.bridge-result__heading p { margin: 7px 0 0; color: var(--bridge-muted); font-size: 14px; }
.bridge-result__main {
  margin-top: 16px;
  padding: 18px;
  border-left: 4px solid var(--bridge-teal);
  background: var(--bridge-teal-soft);
}
.bridge-result__main span,
.bridge-result__main small { display: block; color: #466963; }
.bridge-result__main strong { display: block; margin: 2px 0; color: var(--bridge-teal); font-size: 35px; line-height: 1.1; }
.bridge-result__metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin: 10px 0 0;
}
.bridge-result__metrics div { min-width: 0; padding: 11px; border: 1px solid var(--bridge-line); background: #fff; }
.bridge-result__metrics dt { color: var(--bridge-muted); font-size: 10px; font-weight: 750; text-transform: uppercase; }
.bridge-result__metrics dd { margin: 4px 0 0; overflow-wrap: anywhere; color: var(--bridge-ink); font-size: 16px; font-weight: 850; }
.bridge-scenarios { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin-top: 10px; }
.bridge-scenarios article { min-width: 0; padding: 11px; border: 1px solid var(--bridge-line); background: #fff; }
.bridge-scenarios article.is-selected { border-color: var(--bridge-teal); background: var(--bridge-teal-soft); }
.bridge-scenarios span,
.bridge-scenarios small { display: block; color: var(--bridge-muted); font-size: 10px; }
.bridge-scenarios strong { display: block; margin: 3px 0; color: var(--bridge-ink); font-size: 16px; }
.bridge-stress { margin-top: 10px; padding: 11px 12px; border-left: 4px solid var(--bridge-gold); background: var(--bridge-gold-soft); color: #5e4b21; font-size: 13px; }
.bridge-stress.is-negative { border-color: var(--bridge-coral); background: var(--bridge-coral-soft); color: #7f2d2d; }
.bridge-checks { display: grid; gap: 7px; margin-top: 10px; }
.bridge-checks article { display: grid; grid-template-columns: 72px minmax(0, 1fr); gap: 10px; align-items: start; padding: 9px 10px; border: 1px solid var(--bridge-line); background: #fff; }
.bridge-checks article > span { padding: 4px 5px; border-radius: 4px; background: #e9eef3; color: var(--bridge-muted); font-size: 9px; font-weight: 850; text-align: center; text-transform: uppercase; }
.bridge-checks article.is-ready > span { background: var(--bridge-teal-soft); color: var(--bridge-teal); }
.bridge-checks article.is-urgent > span { background: var(--bridge-coral-soft); color: var(--bridge-coral); }
.bridge-checks strong { display: block; font-size: 12px; }
.bridge-checks p { margin: 2px 0 0; color: var(--bridge-muted); font-size: 11px; }
.bridge-disclaimer { margin: 11px 0 0; color: var(--bridge-muted); font-size: 11px; }
.bridge-handoff { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-top: 13px; padding-top: 13px; border-top: 1px solid var(--bridge-line); }
.bridge-handoff strong { display: block; }
.bridge-handoff p { margin: 2px 0 0; color: var(--bridge-muted); font-size: 12px; }

.bridge-contact {
  display: grid;
  grid-template-columns: minmax(220px, 1.2fr) minmax(150px, 0.8fr) minmax(190px, 0.8fr) auto;
  gap: 14px;
  align-items: end;
  padding: 20px;
  border-top: 1px solid #9ccfc8;
  background: var(--bridge-teal-soft);
}
.bridge-contact h3 { margin: 0; font-size: 19px; }
.bridge-contact > div > p { margin: 4px 0 0; color: var(--bridge-muted); font-size: 12px; }
.bridge-contact .bridge-primary { width: auto; min-width: 190px; margin: 0; }
.bridge-contact__privacy,
.bridge-contact > .bridge-status { grid-column: 1 / -1; }
.bridge-contact__privacy a { color: var(--bridge-teal); }
.bridge-success { padding: 20px; border-top: 1px solid #9ccfc8; background: var(--bridge-teal-soft); text-align: center; }
.bridge-success strong { color: var(--bridge-teal); font-size: 20px; }
.bridge-success p { margin: 4px 0 0; }

.bridge-method,
.bridge-sources { margin-top: 28px; }
.bridge-method { padding: 30px 0; }
.bridge-section-heading h2,
.bridge-sources h2 { margin: 0; font-size: 28px; }
.bridge-method__grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin-top: 16px; }
.bridge-method article { padding: 18px 0; border-top: 3px solid var(--bridge-navy); }
.bridge-method article > span { color: var(--bridge-gold); font-size: 12px; font-weight: 850; }
.bridge-method h3 { margin: 4px 0 5px; font-size: 18px; }
.bridge-method p { margin: 0; color: var(--bridge-muted); }
.bridge-sources {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 38px;
  margin-bottom: 42px;
  padding: 24px;
  border: 1px solid var(--bridge-line);
  background: var(--bridge-paper);
}
.bridge-sources p { color: var(--bridge-muted); }
.bridge-sources ul { display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; }
.bridge-sources a { display: block; padding: 9px 10px; border-left: 3px solid var(--bridge-teal); background: #f5f9f8; color: var(--bridge-navy); font-weight: 700; text-decoration: none; }

@media (max-width: 980px) {
  .bridge-nav { align-items: flex-start; }
  .bridge-nav nav { flex-wrap: wrap; justify-content: flex-end; gap: 10px 16px; }
  .bridge-intro { grid-template-columns: 1fr; gap: 22px; }
  .bridge-tool__head { grid-template-columns: 58px minmax(0, 1fr); }
  .bridge-tool__head > img { width: 58px; height: 58px; }
  .bridge-tool__head ol { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .bridge-tool__head li { min-width: 0; }
  .bridge-tool__workspace { grid-template-columns: 1fr; }
  .bridge-form { border-right: 0; border-bottom: 1px solid var(--bridge-line); }
  .bridge-empty { min-height: 230px; }
  .bridge-contact { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .bridge-contact > div { grid-column: 1 / -1; }
  .bridge-contact .bridge-primary { width: 100%; min-width: 0; }
}

@media (max-width: 620px) {
  .bridge-nav { min-height: 60px; padding: 10px 16px; }
  .bridge-nav nav { display: none; }
  .bridge-intro { padding: 28px 16px 24px; }
  .bridge-intro h1 { font-size: 35px; }
  .bridge-intro > div > p { font-size: 16px; }
  .bridge-tool,
  .bridge-method,
  .bridge-sources { width: calc(100% - 24px); }
  .bridge-tool { margin-top: 16px; }
  .bridge-tool__head { padding: 14px; }
  .bridge-tool__head h2 { font-size: 19px; }
  .bridge-tool__head li { min-height: 38px; padding: 6px; font-size: 10px; }
  .bridge-form,
  .bridge-output { padding: 14px; }
  .bridge-fields,
  .bridge-advanced__grid,
  .bridge-contact,
  .bridge-method__grid,
  .bridge-sources { grid-template-columns: 1fr; }
  .bridge-contact > div,
  .bridge-contact__privacy,
  .bridge-contact > .bridge-status { grid-column: auto; }
  .bridge-result__metrics,
  .bridge-scenarios { grid-template-columns: 1fr; }
  .bridge-handoff { align-items: stretch; flex-direction: column; }
  .bridge-secondary { width: 100%; }
  .bridge-method { padding: 20px 0; }
  .bridge-sources { gap: 14px; padding: 17px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}