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.fact-note{margin-top:2rem;padding-top:1rem;border-top:1px solid var(--rule);font-size:.78rem}.workflow-context{max-width:55rem}.contact-actions{grid-column:3;grid-row:3;display:flex;align-items:center;gap:1.5rem;flex-wrap:wrap}.contact-actions .button{grid-column:auto;grid-row:auto}.button:hover,.button:focus-visible{background:var(--dark);color:var(--light)}.phone-link{font-size:.8rem;text-underline-offset:5px}
.riverline-details{display:grid;gap:3rem}.structure-bar{display:grid;grid-template-columns:68fr 32fr;min-height:95px}.structure-bar span{display:flex;align-items:center;padding:1rem;font:10px var(--mono);text-transform:uppercase;letter-spacing:.06em}.retained-bar{background:var(--ink);color:var(--paper)}.new-bar{background:var(--oxide);color:white}
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.coordination-figure figcaption{color:#454a46}
@media(max-width:400px){.contact-section h2{font-size:4rem}}

/* Responsive integrity overrides: reserve independent space for hero copy and evidence. */
.hero{grid-template-columns:minmax(150px,.45fr) minmax(420px,1.15fr) minmax(360px,.9fr);grid-template-rows:auto 1fr auto}
.hero-copy{grid-column:2/4;align-self:start;padding-top:5vh}
.hero h1{font-size:clamp(4.5rem,8.2vw,8rem);line-height:.82;white-space:normal}
.hero-drawing{grid-column:3;grid-row:2;align-self:end;margin:0}
.scroll-cue{display:none;color:var(--oxide);font-weight:700}
@media(max-width:1100px) and (min-width:681px){
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  .hero h1{font-size:clamp(4rem,10vw,6.5rem);white-space:normal}
  .hero-drawing{grid-column:2;grid-row:auto;margin:0 0 0 12%;opacity:.45}
}
@media(max-width:680px){
  .hero{grid-template-columns:1fr;grid-template-rows:auto}
  .hero-copy{grid-column:1;padding:4rem 0 1rem}
  .hero h1{font-size:clamp(3.4rem,17vw,5.4rem)}
  .hero-drawing{grid-column:1;grid-row:auto;margin:-2rem -30% 0 5%;opacity:.5}
  .riverline-program{overflow-x:auto;overscroll-behavior-inline:contain}
  .riverline-program svg{transform:none}
  .riverline-program figcaption,.coordination-figure figcaption{position:sticky;left:0;width:calc(100vw - 2.3rem)}
  .coordination-figure{overscroll-behavior-inline:contain}
  .scroll-cue{display:block;margin-bottom:.5rem}
}