/* Lucern palette — locked hex only. No gradients. */
:root {
  --yamabuki: #F8B500;
  --kuchiba: #917347;
  --gunjo: #4C6CB3;
  --seiji: #7EBEA5;
  --nureba: #000B00;
  --akasumi: #3F312B;
  --kinari: #FBFAF5;
  --sans: "IBM Plex Sans", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--nureba);
  color: var(--kinari);
  font-family: var(--sans);
  font-weight: 400;
  line-height: 1.5;
}

.page {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 2rem;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1.5rem;
  padding: 1.6rem 0 2.2rem;
}

.wordmark {
  color: var(--kuchiba);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.16em;
}

.nav nav {
  display: flex;
  gap: 1.75rem;
}

.nav nav a {
  color: var(--kinari);
  text-decoration: none;
  font-size: 0.95rem;
}

.nav nav a:hover,
.nav nav a:focus-visible {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 42%) minmax(0, 1fr);
  column-gap: 3rem;
  align-items: center;
  padding: 1.25rem 0 3rem;
}

/* Crop the wide lockup canvas to the mark. Source 1920×720, ink box padded to 119,199 1121×282. */
.lockup {
  width: 100%;
  aspect-ratio: 1121 / 282;
  overflow: hidden;
  position: relative;
}

.lockup img {
  position: absolute;
  width: 171.2756%;
  height: auto;
  max-width: none;
  left: -10.6155%;
  top: -70.5674%;
}

.hero h1 {
  margin: 0 0 0.9rem;
  font-size: clamp(1.85rem, 3.1vw, 2.75rem);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--kinari);
}

.lede {
  margin: 0;
  max-width: 38rem;
  font-size: 1.05rem;
  color: var(--kinari);
}

.cta { margin: 1.35rem 0 0; }

.button {
  display: inline-block;
  background: var(--yamabuki);
  color: var(--nureba);
  text-decoration: none;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1.2;
  padding: 0.75rem 1.15rem;
}

.button:hover,
.button:focus-visible {
  outline: 2px solid var(--kinari);
  outline-offset: 3px;
}

.path {
  margin: 0.85rem 0 0;
  font-family: var(--mono);
  font-size: 0.82rem;
}

.path a {
  color: var(--kinari);
  text-decoration: none;
}

.path a:hover,
.path a:focus-visible {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.secondary {
  margin: 0.9rem 0 0;
  color: var(--kuchiba);
  font-size: 0.95rem;
}

.secondary a {
  color: var(--kinari);
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.early {
  margin: 1.15rem 0 0;
  color: var(--kinari);
}

.pinbar {
  background: var(--akasumi);
  color: var(--kinari);
}

.pinbar p {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0.85rem 2rem;
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 0.82rem;
}

.who,
.how,
.proof,
.faq {
  padding: 3.75rem 0 0;
}

h2 {
  margin: 0 0 1.25rem;
  font-size: 1.35rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--kinari);
}

.who p {
  margin: 0;
  max-width: 40rem;
}

.breath {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.75rem 1.5rem;
}

.breath li { margin: 0; }

.num {
  display: block;
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--kuchiba);
}

.label {
  display: block;
  margin: 0.35rem 0 0.65rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--kinari);
}

.breath p {
  margin: 0;
  font-size: 0.95rem;
}

.proof dl { margin: 0; }

.proof dl div {
  display: grid;
  grid-template-columns: 8.5rem minmax(0, 1fr);
  gap: 1.25rem;
  border-top: 1px solid var(--kuchiba);
  padding: 1rem 0;
}

.proof dl div:last-child {
  border-bottom: 1px solid var(--kuchiba);
}

.proof dt {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.82rem;
  font-weight: 400;
  color: var(--kinari);
}

.proof dd {
  margin: 0;
}

.faq-list details {
  border-top: 1px solid var(--kuchiba);
  padding: 0.9rem 0;
}

.faq-list details:last-child {
  border-bottom: 1px solid var(--kuchiba);
}

.faq-list summary {
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  font-weight: 500;
  list-style: none;
}

.faq-list summary::-webkit-details-marker { display: none; }

.faq-list summary::after {
  content: "+";
  font-family: var(--mono);
  color: var(--kinari);
}

.faq-list details[open] summary::after { content: "–"; }

.faq-list details p {
  margin: 0.7rem 0 0.2rem;
  max-width: 40rem;
}

.close {
  text-align: center;
  padding: 5rem 0 3.5rem;
}

.close p {
  margin: 0 0 1.35rem;
}

footer {
  padding: 0.5rem 0 2.5rem;
  color: var(--kuchiba);
  font-size: 0.85rem;
}

footer p { margin: 0; }

a:focus-visible {
  outline: 2px solid var(--kinari);
  outline-offset: 3px;
}

@media (max-width: 860px) {
  .hero {
    grid-template-columns: 1fr;
    row-gap: 1.75rem;
  }

  .lockup { max-width: 28rem; }

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

  .proof dl div { grid-template-columns: 1fr; gap: 0.35rem; }
}

@media (max-width: 560px) {
  .page { padding: 0 1.25rem; }

  .nav { align-items: flex-start; }
  .nav nav { gap: 1rem; }

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

  .pinbar p { padding: 0.85rem 1.25rem; }
}