:root {
  --ink: #141715;
  --ink-soft: #282d29;
  --paper: #f2efe6;
  --paper-light: #fbfaf5;
  --paper-dark: #ddd8ca;
  --signal: #ed5b3d;
  --signal-dark: #a72e1b;
  --acid: #c9f36a;
  --blue: #a8c2ff;
  --muted: #656b65;
  --line: #202420;
  --success: #1f6f46;
  --shadow: 12px 12px 0 rgba(20, 23, 21, 0.16);
  --serif: Georgia, "Times New Roman", serif;
  --mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--ink);
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(rgba(20, 23, 21, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(20, 23, 21, 0.035) 1px, transparent 1px),
    var(--paper);
  background-size: 32px 32px;
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

body::before {
  position: fixed;
  z-index: 20;
  inset: 0 0 auto;
  height: 3px;
  content: "";
  background: linear-gradient(90deg, var(--signal) 0 38%, var(--acid) 38% 67%, var(--blue) 67%);
  pointer-events: none;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

button,
input,
textarea {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

img,
svg {
  display: block;
  max-width: 100%;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 10px;
  left: 10px;
  padding: 0.7rem 1rem;
  color: var(--paper-light);
  background: var(--signal-dark);
  font-family: var(--mono);
  font-size: 0.75rem;
  transform: translateY(-150%);
}

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

.shell {
  width: min(1180px, calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  z-index: 50;
  top: 0;
  color: var(--paper-light);
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(20, 23, 21, 0.96);
  backdrop-filter: blur(16px);
}

.nav-row {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--paper-light);
  font-family: var(--mono);
  font-size: 0.86rem;
  font-weight: 600;
  letter-spacing: -0.035em;
  text-decoration: none;
}

.brand-logo {
  width: 36px;
  height: 36px;
  flex: 0 0 36px;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(0.9rem, 2vw, 1.8rem);
  margin-left: auto;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.nav-links a {
  color: #d8dbd6;
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--acid);
}

.nav-proof {
  padding: 0.62rem 0.82rem;
  color: var(--ink) !important;
  border: 1px solid var(--acid);
  background: var(--acid);
}

.menu-toggle {
  display: none;
  padding: 0.65rem;
  color: var(--paper-light);
  border: 1px solid #59605a;
  background: transparent;
  font-family: var(--mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  cursor: pointer;
}

.eyebrow,
.micro,
.tag,
.section-index,
.card-code,
.button,
.report-meta,
.status-chip,
.suite-count,
.footer-title,
.form-label,
.form-status,
.proof-row,
.score-label {
  font-family: var(--mono);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  margin: 0 0 1.4rem;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 2rem;
  height: 2px;
  content: "";
  background: currentColor;
}

.hero {
  position: relative;
  overflow: hidden;
  color: var(--paper-light);
  border-bottom: 2px solid var(--line);
  background: var(--ink);
}

.hero::after {
  position: absolute;
  right: -7rem;
  bottom: -11rem;
  width: 32rem;
  height: 32rem;
  content: "";
  border: 1px solid rgba(201, 243, 106, 0.32);
  border-radius: 50%;
  box-shadow: 0 0 0 5rem rgba(201, 243, 106, 0.035), 0 0 0 10rem rgba(201, 243, 106, 0.025);
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.78fr);
  gap: clamp(3rem, 7vw, 7rem);
  align-items: center;
  min-height: 740px;
  padding-block: 7rem;
}

.hero h1,
.report-hero h1 {
  max-width: 820px;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(3.6rem, 7.5vw, 7.4rem);
  font-weight: 400;
  line-height: 0.91;
  letter-spacing: -0.07em;
}

.hero h1 em,
.report-hero h1 em {
  color: var(--signal);
  font-style: italic;
  font-weight: 400;
}

.hero-lead {
  max-width: 690px;
  margin: 2rem 0 0;
  color: #d6d9d4;
  font-size: clamp(1.05rem, 1.5vw, 1.3rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.75rem 1rem;
  border: 1px solid currentColor;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.035em;
  text-decoration: none;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translate(-3px, -3px);
  box-shadow: 5px 5px 0 currentColor;
}

.button-primary {
  color: var(--ink);
  border-color: var(--acid);
  background: var(--acid);
}

.button-secondary {
  color: var(--paper-light);
  border-color: #6e746f;
  background: transparent;
}

.button-ink {
  color: var(--paper-light);
  border-color: var(--ink);
  background: var(--ink);
}

.button-signal {
  color: var(--paper-light);
  border-color: var(--signal-dark);
  background: var(--signal-dark);
}

.hero-caveat {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.7rem;
  max-width: 710px;
  margin: 2.2rem 0 0;
  padding-top: 1rem;
  color: #adb2ad;
  border-top: 1px solid #434943;
  font-family: var(--mono);
  font-size: 0.68rem;
  line-height: 1.6;
}

.hero-caveat strong {
  color: var(--acid);
  font-weight: 600;
}

.evidence-file {
  position: relative;
  padding: 1.5rem;
  color: var(--ink);
  border: 2px solid var(--ink);
  background: var(--paper-light);
  box-shadow: 15px 15px 0 var(--signal);
  transform: rotate(1.7deg);
}

.evidence-file::before {
  position: absolute;
  top: -18px;
  left: 50%;
  width: 120px;
  height: 34px;
  content: "";
  border: 1px solid rgba(20, 23, 21, 0.15);
  background: rgba(221, 216, 202, 0.82);
  transform: translateX(-50%) rotate(-3deg);
}

.file-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--ink);
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.file-stamp {
  padding: 0.35rem 0.55rem;
  color: var(--signal-dark);
  border: 2px solid var(--signal-dark);
  font-weight: 600;
  transform: rotate(-5deg);
}

.proof-list {
  margin: 1.2rem 0;
}

.proof-row {
  display: grid;
  grid-template-columns: 3.2rem 1fr auto;
  gap: 0.8rem;
  align-items: center;
  padding: 0.9rem 0;
  border-bottom: 1px dashed #80877f;
  font-size: 0.69rem;
}

.proof-row span:first-child {
  color: var(--muted);
}

.proof-row strong {
  font-size: 0.72rem;
}

.proof-state {
  padding: 0.2rem 0.4rem;
  color: var(--success);
  border: 1px solid currentColor;
  font-size: 0.58rem;
  font-weight: 600;
  text-transform: uppercase;
}

.proof-state.separate {
  color: var(--signal-dark);
}

.hash-block {
  padding: 0.8rem;
  color: #dce1da;
  background: var(--ink);
  font-family: var(--mono);
  font-size: 0.62rem;
  line-height: 1.65;
  overflow-wrap: anywhere;
}

.file-note {
  margin: 0.9rem 0 0;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.58rem;
  line-height: 1.55;
}

.trust-band {
  color: var(--ink);
  border-bottom: 2px solid var(--ink);
  background: var(--acid);
}

.trust-band .shell {
  display: grid;
  grid-template-columns: 180px 1fr auto;
  gap: 2rem;
  align-items: center;
  min-height: 104px;
  padding-block: 1.3rem;
}

.trust-band strong,
.trust-band p,
.trust-band a {
  margin: 0;
}

.trust-band strong,
.trust-band a {
  font-family: var(--mono);
  font-size: 0.72rem;
  text-transform: uppercase;
}

.trust-band p {
  font-size: 1rem;
  line-height: 1.45;
}

.section {
  padding-block: clamp(5rem, 9vw, 9rem);
  border-bottom: 2px solid var(--ink);
}

.section-light {
  background: rgba(251, 250, 245, 0.86);
}

.section-dark {
  color: var(--paper-light);
  background:
    radial-gradient(circle at 12% 18%, rgba(168, 194, 255, 0.1), transparent 26rem),
    var(--ink);
}

.section-signal {
  color: var(--ink);
  background: var(--signal);
}

.section-head {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: clamp(1.5rem, 5vw, 5rem);
  margin-bottom: clamp(3rem, 7vw, 6rem);
}

.section-index {
  padding-top: 0.6rem;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section-head h2,
.cta h2,
.report-section h2 {
  max-width: 900px;
  margin: 0;
  font-size: clamp(2.6rem, 5.4vw, 5.4rem);
  font-weight: 400;
  line-height: 0.98;
  letter-spacing: -0.055em;
}

.section-head p {
  max-width: 760px;
  margin: 1.5rem 0 0;
  color: var(--muted);
  font-size: 1.12rem;
}

.section-dark .section-head p {
  color: #bec3bd;
}

.built-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  border-top: 2px solid var(--ink);
  border-left: 2px solid var(--ink);
}

.built-card {
  grid-column: span 6;
  min-height: 330px;
  padding: clamp(1.5rem, 4vw, 3rem);
  border-right: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  background: var(--paper-light);
}

.built-card:nth-child(2) {
  background: var(--blue);
}

.built-card:nth-child(3) {
  background: var(--paper-dark);
}

.built-card:nth-child(4) {
  background: var(--acid);
}

.card-code {
  display: block;
  margin-bottom: 3.8rem;
  font-size: 0.63rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.built-card h3,
.mode-card h3,
.control-card h3,
.suite-card h3 {
  margin: 0 0 1rem;
  font-size: clamp(1.7rem, 3vw, 2.45rem);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.built-card p {
  max-width: 540px;
  margin: 0;
}

.chain {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  counter-reset: chain;
  border-top: 1px solid #515851;
  border-left: 1px solid #515851;
}

.chain-step {
  position: relative;
  min-height: 320px;
  padding: 2rem 1.4rem;
  border-right: 1px solid #515851;
  border-bottom: 1px solid #515851;
  counter-increment: chain;
}

.chain-step::before {
  display: block;
  margin-bottom: 5.5rem;
  color: var(--acid);
  content: "0" counter(chain);
  font-family: var(--mono);
  font-size: 0.7rem;
}

.chain-step::after {
  position: absolute;
  top: 2.2rem;
  right: -0.55rem;
  z-index: 1;
  width: 0.85rem;
  height: 0.85rem;
  content: "";
  border: 2px solid var(--ink);
  background: var(--signal);
  transform: rotate(45deg);
}

.chain-step:last-child::after {
  display: none;
}

.chain-step h3 {
  margin: 0 0 0.8rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.chain-step p {
  margin: 0;
  color: #c2c7c1;
  font-size: 0.94rem;
}

.mode-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.mode-card {
  display: flex;
  flex-direction: column;
  min-height: 560px;
  padding: clamp(1.5rem, 3vw, 2.3rem);
  border: 2px solid var(--ink);
  background: var(--paper-light);
  box-shadow: 7px 7px 0 rgba(20, 23, 21, 0.14);
}

.mode-card.connect {
  color: var(--paper-light);
  background: var(--ink);
  box-shadow: 7px 7px 0 var(--signal);
}

.mode-card .tag {
  align-self: flex-start;
  margin-bottom: 4rem;
  padding: 0.32rem 0.48rem;
  border: 1px solid currentColor;
  font-size: 0.58rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.mode-card > p {
  margin: 0 0 1.5rem;
}

.mode-list {
  display: grid;
  gap: 0.7rem;
  margin: auto 0 0;
  padding: 1.2rem 0 0;
  border-top: 1px solid currentColor;
  list-style: none;
  font-family: var(--mono);
  font-size: 0.67rem;
}

.mode-list li {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 0.7rem;
}

.mode-list strong {
  color: var(--muted);
  font-weight: 500;
}

.connect .mode-list strong {
  color: #aeb4ad;
}

.custody-warning {
  margin: 0 0 1.5rem !important;
  padding: 0.9rem;
  color: var(--ink);
  background: var(--signal);
  font-family: var(--mono);
  font-size: 0.67rem;
  line-height: 1.55;
}

.control-layout {
  display: grid;
  grid-template-columns: 0.86fr 1.14fr;
  gap: clamp(2rem, 7vw, 7rem);
  align-items: start;
}

.control-big {
  position: sticky;
  top: 110px;
}

.control-big .kill-mark {
  display: grid;
  place-items: center;
  width: clamp(180px, 26vw, 300px);
  aspect-ratio: 1;
  margin-bottom: 2rem;
  border: 3px solid var(--ink);
  border-radius: 50%;
  box-shadow: inset 0 0 0 18px var(--signal), inset 0 0 0 21px var(--ink);
  font-family: var(--mono);
  font-size: clamp(2.8rem, 6vw, 5.2rem);
  font-weight: 600;
  letter-spacing: -0.08em;
}

.control-big p {
  max-width: 440px;
}

.control-cards {
  border-top: 2px solid var(--ink);
}

.control-card {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 1.4rem;
  padding: 2.2rem 0;
  border-bottom: 2px solid var(--ink);
}

.control-card .card-code {
  margin: 0;
}

.control-card p {
  margin: 0;
}

.provenance-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: #59605a;
  border: 1px solid #59605a;
}

.prov-card {
  min-height: 360px;
  padding: 2rem;
  color: var(--paper-light);
  background: var(--ink-soft);
}

.prov-mark {
  display: inline-grid;
  place-items: center;
  width: 76px;
  height: 76px;
  margin-bottom: 4rem;
  color: var(--ink);
  background: var(--acid);
  font-family: var(--mono);
  font-size: 1.3rem;
  font-weight: 600;
}

.prov-card:nth-child(2) .prov-mark {
  background: var(--blue);
}

.prov-card:nth-child(3) .prov-mark {
  background: var(--signal);
}

.prov-card h3 {
  margin: 0 0 1rem;
  font-size: 1.8rem;
  font-weight: 400;
}

.prov-card p {
  margin: 0;
  color: #c6cbc5;
  font-size: 0.98rem;
}

.test-teaser {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: clamp(2.5rem, 8vw, 8rem);
  align-items: center;
}

.test-number {
  margin: 0;
  font-size: clamp(7rem, 18vw, 15rem);
  line-height: 0.72;
  letter-spacing: -0.1em;
}

.test-number span {
  display: block;
  margin: 1.5rem 0 0 0.5rem;
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  line-height: 1.4;
  text-transform: uppercase;
}

.test-copy h2 {
  margin: 0 0 1.4rem;
  font-size: clamp(2.6rem, 5.5vw, 5.2rem);
  font-weight: 400;
  line-height: 0.95;
  letter-spacing: -0.055em;
}

.test-copy p {
  max-width: 700px;
}

.test-copy .button {
  margin-top: 1.2rem;
}

.cta {
  padding-block: clamp(5rem, 11vw, 10rem);
  color: var(--paper-light);
  background: var(--signal-dark);
}

.cta-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(420px, 1fr);
  gap: clamp(3rem, 8vw, 8rem);
  align-items: start;
}

.cta p {
  max-width: 580px;
}

.contact-form {
  padding: clamp(1.4rem, 4vw, 2.5rem);
  color: var(--ink);
  border: 2px solid var(--ink);
  background: var(--paper-light);
  box-shadow: 12px 12px 0 var(--ink);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-field {
  margin-bottom: 1rem;
}

.form-label {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.64rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.85rem;
  color: var(--ink);
  border: 1px solid var(--ink);
  border-radius: 0;
  background: #fff;
  font-family: var(--mono);
  font-size: 0.78rem;
}

.contact-form textarea {
  min-height: 145px;
  resize: vertical;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 3px solid var(--acid);
  outline-offset: 2px;
}

.contact-form .button {
  width: 100%;
}

.contact-form .button:disabled {
  opacity: 0.6;
  cursor: wait;
}

.form-status {
  min-height: 1.5rem;
  margin: 0.8rem 0 0;
  font-size: 0.65rem;
  text-align: center;
}

.form-note {
  margin: 0.4rem 0 0;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.57rem;
  text-align: center;
}

.site-footer {
  padding-block: 3rem;
  color: #c7ccc6;
  background: var(--ink);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  align-items: end;
}

.footer-title {
  margin: 0 0 0.7rem;
  color: var(--paper-light);
  font-size: 0.76rem;
  font-weight: 600;
}

.site-footer p,
.site-footer a {
  margin-block: 0.4rem;
  font-family: var(--mono);
  font-size: 0.62rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: flex-end;
}

/* Test reports */
.report-hero {
  padding-block: clamp(5rem, 10vw, 9rem);
  color: var(--paper-light);
  border-bottom: 2px solid var(--ink);
  background:
    linear-gradient(120deg, transparent 0 60%, rgba(201, 243, 106, 0.08) 60%),
    var(--ink);
}

.report-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: clamp(3rem, 8vw, 8rem);
  align-items: end;
}

.report-hero p {
  max-width: 700px;
  margin-top: 2rem;
  color: #cbd0ca;
}

.score-card {
  padding: 1.5rem;
  color: var(--ink);
  border: 2px solid var(--ink);
  background: var(--acid);
  box-shadow: 12px 12px 0 var(--signal);
}

.score-label {
  font-size: 0.63rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.score-value {
  margin: 1.4rem 0;
  font-size: 6rem;
  line-height: 0.8;
  letter-spacing: -0.09em;
}

.score-card dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.5rem 1rem;
  margin: 0;
  padding-top: 1rem;
  border-top: 1px solid var(--ink);
  font-family: var(--mono);
  font-size: 0.63rem;
}

.score-card dd {
  margin: 0;
  text-align: right;
}

.report-section {
  padding-block: clamp(4.5rem, 9vw, 8rem);
  border-bottom: 2px solid var(--ink);
}

.report-section h2 {
  margin-bottom: 1.5rem;
}

.report-intro {
  max-width: 780px;
  margin: 0 0 3rem;
  color: var(--muted);
}

.suite-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 2px solid var(--ink);
  border-left: 2px solid var(--ink);
}

.suite-card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  min-height: 250px;
  padding: 2rem;
  border-right: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  background: var(--paper-light);
}

.suite-card:nth-child(4n + 2),
.suite-card:nth-child(4n + 3) {
  background: var(--paper-dark);
}

.suite-card p {
  grid-column: 1 / -1;
  align-self: end;
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
}

.suite-count {
  align-self: start;
  padding: 0.35rem 0.5rem;
  color: var(--success);
  border: 1px solid currentColor;
  font-size: 0.62rem;
  font-weight: 600;
  white-space: nowrap;
}

.method-grid,
.limits-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 3rem;
}

.method-card,
.limit-card {
  min-height: 280px;
  padding: 1.7rem;
  border: 1px solid currentColor;
}

.method-card h3,
.limit-card h3 {
  margin: 0 0 1rem;
  font-size: 1.55rem;
  font-weight: 400;
}

.method-card p,
.limit-card p {
  margin: 0;
  font-size: 0.96rem;
}

.report-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 2rem;
}

.status-chip {
  padding: 0.35rem 0.5rem;
  border: 1px solid currentColor;
  font-size: 0.6rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.status-chip.pass {
  color: var(--acid);
}

.download-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  margin-top: 3rem;
  padding: 1.4rem;
  color: var(--paper-light);
  background: var(--ink);
}

.download-box p {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.65rem;
}

.download-box .button {
  flex: none;
}

.reveal {
  opacity: 1;
  transform: none;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .nav-links {
    position: absolute;
    top: 76px;
    right: 0;
    left: 0;
    display: none;
    align-items: stretch;
    padding: 1.3rem 20px 1.7rem;
    background: var(--ink);
  }

  .nav-links.is-open {
    display: grid;
  }

  .nav-links a {
    padding: 0.8rem 0;
    border-bottom: 1px solid #434943;
  }

  .menu-toggle {
    display: block;
  }

  .hero-grid,
  .report-hero-grid,
  .cta-grid {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    padding-block: 5rem;
  }

  .evidence-file {
    width: min(620px, 94%);
    margin-inline: auto;
  }

  .chain {
    grid-template-columns: 1fr 1fr;
  }

  .chain-step:last-child {
    grid-column: span 2;
  }

  .mode-grid,
  .provenance-grid,
  .method-grid,
  .limits-grid {
    grid-template-columns: 1fr;
  }

  .mode-card {
    min-height: 0;
  }

  .control-layout {
    grid-template-columns: 1fr;
  }

  .control-big {
    position: static;
  }

  .test-teaser {
    grid-template-columns: 1fr;
  }

  .test-number {
    font-size: 9rem;
  }

  .report-hero-grid {
    align-items: start;
  }

  .score-card {
    width: min(420px, 100%);
  }
}

@media (max-width: 680px) {
  body {
    font-size: 16px;
  }

  .shell {
    width: min(100% - 28px, 1180px);
  }

  .wordmark {
    font-size: 0.74rem;
  }

  .hero-grid {
    min-height: auto;
  }

  .hero h1,
  .report-hero h1 {
    font-size: clamp(3rem, 16vw, 4.5rem);
  }

  .hero-actions,
  .hero-actions .button {
    width: 100%;
  }

  .trust-band .shell {
    grid-template-columns: 1fr;
    gap: 0.6rem;
  }

  .section-head {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .section-head h2,
  .cta h2,
  .report-section h2,
  .test-copy h2 {
    font-size: clamp(2.5rem, 13vw, 4rem);
  }

  .built-grid {
    grid-template-columns: 1fr;
  }

  .built-card {
    grid-column: auto;
    min-height: 280px;
  }

  .card-code {
    margin-bottom: 2.5rem;
  }

  .chain {
    grid-template-columns: 1fr;
  }

  .chain-step,
  .chain-step:last-child {
    grid-column: auto;
    min-height: 250px;
  }

  .chain-step::before {
    margin-bottom: 3rem;
  }

  .chain-step::after {
    top: auto;
    right: 1.4rem;
    bottom: -0.55rem;
  }

  .control-card {
    grid-template-columns: 1fr;
  }

  .form-grid,
  .footer-grid,
  .suite-grid {
    grid-template-columns: 1fr;
  }

  .footer-links {
    justify-content: flex-start;
  }

  .suite-card:nth-child(n) {
    background: var(--paper-light);
  }

  .suite-card:nth-child(even) {
    background: var(--paper-dark);
  }

  .download-box {
    align-items: stretch;
    flex-direction: column;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}