.dns-hero {
  display: grid;
  gap: clamp(2.5rem, 7vw, 7rem);
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.75fr);
  margin: 0 auto;
  max-width: 1500px;
  padding: clamp(5rem, 9vw, 8rem) 4vw clamp(4rem, 7vw, 6rem);
}

.dns-hero h1 {
  font-size: clamp(3.6rem, 7.8vw, 8rem);
  margin-bottom: 2rem;
}

.dns-lead {
  font-size: clamp(1.05rem, 1.45vw, 1.28rem);
  line-height: 1.7;
  max-width: 820px;
}

.dns-summary-card {
  align-self: start;
  background: var(--ink);
  box-shadow: 12px 12px 0 var(--signal);
  color: var(--white);
  padding: 1.5rem;
}

.dns-summary-card .micro-label {
  color: var(--signal);
  margin-bottom: 2rem;
}

.dns-summary-card dl {
  margin: 0;
}

.dns-summary-card dl > div {
  border-top: 1px solid rgba(255,255,255,.16);
  padding: 1rem 0;
}

.dns-summary-card dt {
  color: #a8aaa6;
  font-family: "Courier New", monospace;
  font-size: .63rem;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.dns-summary-card dd {
  font-size: .96rem;
  font-weight: 700;
  margin: .4rem 0 0;
}

.dns-proof-strip {
  background: var(--signal);
  border-bottom: 1px solid var(--ink);
  border-top: 1px solid var(--ink);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.dns-proof-strip > div {
  border-right: 1px solid var(--ink);
  padding: 1.45rem 4vw;
}

.dns-proof-strip > div:last-child { border-right: 0; }
.dns-proof-strip strong,
.dns-proof-strip span { display: block; }
.dns-proof-strip strong { font-size: 1rem; margin-bottom: .25rem; }
.dns-proof-strip span { font-size: .72rem; line-height: 1.45; }

.dns-architecture,
.dns-evidence-section { background: rgba(255,254,249,.72); }

.architecture-grid {
  align-items: stretch;
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr .9fr 1fr;
}

.arch-path,
.arch-core {
  border: 1px solid var(--ink);
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 330px;
  padding: clamp(1.25rem, 3vw, 2.5rem);
}

.arch-core { background: var(--ink); color: var(--white); }
.arch-label {
  color: var(--blue);
  font-family: "Courier New", monospace;
  font-size: .65rem;
  font-weight: 800;
  letter-spacing: .12em;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
}
.arch-core .arch-label { color: var(--signal); }
.arch-node {
  border: 1px solid currentColor;
  font-weight: 800;
  padding: 1rem;
  text-align: center;
}
.arch-address { font-family: "Courier New", monospace; font-size: .86rem; }
.arch-primary { border-color: rgba(255,255,255,.45); }
.arch-arrow {
  font-family: "Courier New", monospace;
  font-size: .7rem;
  font-weight: 700;
  padding: .85rem 0;
  text-align: center;
  text-transform: uppercase;
}

.implementation-grid {
  display: grid;
  gap: 1px;
  grid-template-columns: repeat(2, minmax(0,1fr));
  background: var(--ink);
  border: 1px solid var(--ink);
}
.implementation-grid article {
  background: var(--paper);
  min-height: 260px;
  padding: clamp(1.5rem, 3vw, 2.4rem);
}
.implementation-grid article > span,
.evidence-index {
  color: var(--blue);
  font-family: "Courier New", monospace;
  font-size: .66rem;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.implementation-grid h3 {
  font-size: clamp(1.6rem, 3vw, 2.5rem);
  letter-spacing: -.045em;
  margin: 2.2rem 0 1rem;
}
.implementation-grid p {
  color: var(--muted);
  line-height: 1.7;
}
code {
  background: rgba(11,15,14,.07);
  font-family: "Courier New", monospace;
  font-size: .9em;
  padding: .1rem .25rem;
}

.evidence-grid {
  display: grid;
  gap: 1.4rem;
  grid-template-columns: repeat(2, minmax(0,1fr));
}
.evidence-card {
  background: var(--white);
  border: 1px solid var(--ink);
  box-shadow: 7px 7px 0 var(--ink);
  margin: 0;
  min-width: 0;
  overflow: hidden;
}
.evidence-wide { grid-column: 1 / -1; }
.evidence-index {
  border-bottom: 1px solid var(--ink);
  padding: .9rem 1rem;
}
.evidence-card img {
  background: #0d0d0d;
  display: block;
  height: auto;
  max-height: 620px;
  object-fit: contain;
  width: 100%;
}
.evidence-card figcaption {
  border-top: 1px solid var(--ink);
  font-size: .9rem;
  line-height: 1.6;
  padding: 1.15rem 1.2rem 1.3rem;
}
.evidence-card figcaption strong { display: block; margin-bottom: .25rem; }

.notes-grid {
  display: grid;
  gap: 4rem;
  grid-template-columns: .8fr 1.2fr;
}
.notes-grid h2 {
  font-size: clamp(2.7rem, 5.7vw, 5.8rem);
  letter-spacing: -.06em;
  line-height: .95;
}
.notes-copy {
  border-left: 1px solid var(--ink);
  padding-left: clamp(1.5rem, 4vw, 4rem);
}
.notes-copy p { font-size: 1.02rem; line-height: 1.75; }
.privacy-note {
  background: var(--signal);
  border: 1px solid var(--ink);
  font-family: "Courier New", monospace;
  font-size: .78rem !important;
  padding: 1rem;
}

@media (max-width: 900px) {
  .dns-hero,
  .architecture-grid,
  .notes-grid { grid-template-columns: 1fr; }
  .dns-proof-strip { grid-template-columns: repeat(2,1fr); }
  .dns-proof-strip > div:nth-child(2) { border-right: 0; }
  .dns-proof-strip > div:nth-child(-n+2) { border-bottom: 1px solid var(--ink); }
  .implementation-grid,
  .evidence-grid { grid-template-columns: 1fr; }
  .evidence-wide { grid-column: auto; }
  .arch-path,
  .arch-core { min-height: 260px; }
  .notes-copy { border-left: 0; border-top: 1px solid var(--ink); padding: 2rem 0 0; }
}

@media (max-width: 640px) {
  .dns-hero { padding-top: 4rem; }
  .dns-proof-strip { grid-template-columns: 1fr; }
  .dns-proof-strip > div { border-bottom: 1px solid var(--ink); border-right: 0; }
  .dns-proof-strip > div:last-child { border-bottom: 0; }
  .evidence-card { box-shadow: 4px 4px 0 var(--ink); }
}

.terminal-extract {
  background: #0d0d0d;
  color: #f4f4f4;
  font-family: "Courier New", monospace;
  font-size: clamp(.82rem, 1.35vw, 1rem);
  line-height: 1.55;
  margin: 0;
  overflow-x: auto;
  padding: 1.25rem;
  white-space: pre;
}
.terminal-extract .prompt { color: var(--signal); font-weight: 700; }

/* Evidence presentation: readable extracts with full screenshots available on demand. */
.evidence-image-link {
  background: #0d0d0d;
  display: block;
  position: relative;
}
.evidence-image-link img {
  display: block;
  height: auto;
  width: 100%;
}
.evidence-image-link > span {
  background: var(--signal);
  border-left: 1px solid var(--ink);
  border-top: 1px solid var(--ink);
  bottom: 0;
  color: var(--ink);
  font-family: "Courier New", monospace;
  font-size: .64rem;
  font-weight: 800;
  letter-spacing: .08em;
  padding: .6rem .75rem;
  position: absolute;
  right: 0;
  text-transform: uppercase;
}
.evidence-source-link {
  color: var(--blue);
  display: inline-flex;
  font-family: "Courier New", monospace;
  font-size: .69rem;
  font-weight: 800;
  letter-spacing: .07em;
  margin-top: .75rem;
  text-transform: uppercase;
}
.evidence-source-link:hover,
.evidence-source-link:focus-visible {
  text-decoration: underline;
}
.terminal-log {
  font-size: clamp(.72rem, 1.05vw, .9rem);
}