:root {
  --paper: #ffffff;
  --ink: #0e0e0d;
  --ink-soft: #6b6a66;
  --ink-faint: #b6b4ad;
  --hairline: #e4e2dc;
  --panel: #f7f6f3;

  --display: "Space Grotesk", sans-serif;
  --body: "Inter", sans-serif;
  --mono: "IBM Plex Mono", monospace;

  --gutter: clamp(24px, 5vw, 64px);
  --max: 1040px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.masthead {
  animation: rise 0.5s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  .masthead {
    animation: none;
  }
}

/* scroll reveal */

.reveal-target {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

@media (prefers-reduced-motion: reduce) {
  .reveal-target {
    transition: none;
  }
}

/* live status indicator */

.status-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ink);
  position: relative;
}

.status-dot::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1px solid var(--ink-soft);
  animation: ping 2.2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes ping {
  0% { transform: scale(0.6); opacity: 0.8; }
  70%, 100% { transform: scale(1.8); opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .status-dot::after {
    animation: none;
    display: none;
  }
}

html {
  background: var(--paper);
}

body {
  background-color: var(--paper);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='matrix' values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.025 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 180px 180px;
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--ink);
  text-decoration: none;
}

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

/* masthead */

.masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max);
  margin: 0 auto;
  padding: 28px var(--gutter);
  border-bottom: 1px solid var(--hairline);
}

.masthead-id {
  display: flex;
  align-items: center;
  gap: 12px;
}

.masthead-mark {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
}

.wordmark {
  font-family: var(--display);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.04em;
}

.masthead-meta {
  display: flex;
  gap: 20px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--ink-faint);
}

.masthead-meta span:first-child {
  color: var(--ink-soft);
}

.masthead-link {
  color: var(--ink-faint);
  border-bottom: 1px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.masthead-link:hover {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

@media (max-width: 480px) {
  .masthead-meta span:not(:first-child):not(:last-child) {
    display: none;
  }
}

/* announcement */

.announcement {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(48px, 8vw, 96px) var(--gutter) 64px;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: clamp(32px, 6vw, 80px);
  align-items: start;
}

.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 28px;
}

.announcement-copy h1 {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(34px, 5vw, 52px);
  line-height: 1.05;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
}

.lede {
  font-size: 15px;
  color: var(--ink-soft);
  max-width: 46ch;
  margin-bottom: 32px;
}

.terminal {
  background: var(--ink);
  color: var(--panel);
  border-radius: 8px;
  padding: 18px 20px;
  margin-bottom: 28px;
  font-family: var(--mono);
  font-size: 13px;
}

.terminal-line {
  line-height: 1.8;
}

.prompt {
  color: var(--ink-faint);
}

.cursor {
  display: inline-block;
  width: 7px;
  height: 13px;
  margin-left: 2px;
  background: var(--panel);
  vertical-align: -2px;
  animation: blink 1s step-end infinite;
}

.terminal.done .cursor {
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

.terminal-dim {
  color: #8c8a85;
  opacity: 0;
  transform: translateY(2px);
  transition: opacity 0.35s ease, transform 0.35s ease;
}

.terminal-dim.show {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .cursor {
    animation: none;
  }
  .terminal-dim {
    transition: none;
  }
}

.links-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.link-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 14px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

a.link-pill:hover {
  border-color: var(--ink);
  background: var(--panel);
}

.link-pill-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.link-pill-value {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-soft);
}

.link-pill-pending {
  cursor: default;
}

.link-pill-pending .link-pill-value {
  color: var(--ink-faint);
}

.ca-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.ca-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.ca-value {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-soft);
  background: var(--panel);
  padding: 5px 10px;
  border-radius: 4px;
}

.ca-copy {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  background: none;
  border: 1px solid var(--hairline);
  border-radius: 4px;
  padding: 5px 12px;
  cursor: pointer;
  color: var(--ink-soft);
  transition: border-color 0.2s ease, color 0.2s ease, transform 0.15s ease;
}

.ca-copy:hover {
  border-color: var(--ink);
  color: var(--ink);
}

.ca-copy.copied {
  border-color: var(--ink);
  color: var(--ink);
  transform: scale(1.04);
}

.spec-doc {
  border-top: 1px solid var(--hairline);
}

.spec-doc-row {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--hairline);
}

.spec-doc-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--ink-faint);
  padding-top: 2px;
}

.spec-doc-row p {
  font-size: 14px;
  color: var(--ink-soft);
  max-width: 38ch;
}

/* specimen / signature element */

.specimen {
  margin: 0 auto;
}

.specimen-frame {
  position: relative;
  padding: 32px 30px 4px;
}

.specimen-img {
  display: block;
  width: 100%;
  max-width: 280px;
  margin: 0 auto;
  border-radius: 6px;
}

.leader {
  position: absolute;
  border: none;
  background: var(--hairline);
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.leader-top {
  top: 0;
  left: 50%;
  width: 1px;
  height: 28px;
  transform: translateX(-0.5px) scaleY(0);
  transform-origin: top;
}

.leader-right {
  top: 50%;
  right: 4px;
  width: 22px;
  height: 1px;
  transform: scaleX(0);
  transform-origin: left;
}

.specimen.measured .leader-top {
  transform: translateX(-0.5px) scaleY(1);
}

.specimen.measured .leader-right {
  transform: scaleX(1);
  transition-delay: 0.15s;
}

.callout {
  position: absolute;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.03em;
  color: var(--ink-soft);
  white-space: nowrap;
  opacity: 0;
  transition: opacity 0.4s ease;
  transition-delay: 0.45s;
}

.specimen.measured .callout {
  opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
  .leader,
  .callout {
    transition: none;
  }
}

.callout-top {
  top: 2px;
  left: 50%;
  transform: translate(-50%, -100%);
}

.callout-right {
  top: calc(50% - 18px);
  right: -4px;
  transform: translateX(100%);
}

.specimen figcaption {
  text-align: center;
  margin-top: 24px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-faint);
}

.confirmed {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-left: 8px;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--hairline);
  color: var(--ink-soft);
}

.confirmed::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--ink-soft);
}

/* asset cards */

.assets {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter) 8px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
}

.asset-card {
  background: var(--paper);
  padding: 24px 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.asset-card:hover {
  background: var(--panel);
  transform: translateY(-3px);
  box-shadow: 0 10px 24px -16px rgba(14, 14, 13, 0.35);
}

@media (prefers-reduced-motion: reduce) {
  .asset-card {
    transition: background-color 0.2s ease;
  }
  .asset-card:hover {
    transform: none;
    box-shadow: none;
  }
}

.asset-card-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.asset-card-title {
  font-size: 14px;
  font-weight: 500;
}

/* explore grid */

.explore {
  max-width: var(--max);
  margin: 0 auto;
  padding: 64px var(--gutter) 16px;
  border-top: 1px solid var(--hairline);
}

.explore-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
  margin-top: 28px;
}

.explore-tile {
  position: relative;
  background: var(--paper);
  padding: 26px 22px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 128px;
  transition: background-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.explore-tile:hover {
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-2px);
  z-index: 1;
}

.explore-tile:hover .explore-index {
  color: var(--paper);
  opacity: 0.55;
}

.explore-tile:hover .explore-desc {
  color: var(--paper);
  opacity: 0.7;
}

.explore-tile::after {
  content: "→";
  position: absolute;
  top: 22px;
  right: 20px;
  font-family: var(--mono);
  font-size: 13px;
  opacity: 0;
  transform: translate(-4px, -4px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.explore-tile:hover::after {
  opacity: 1;
  transform: translate(0, 0);
}

.explore-index {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--ink-faint);
  transition: color 0.2s ease, opacity 0.2s ease;
}

.explore-name {
  font-family: var(--display);
  font-weight: 500;
  font-size: 18px;
  margin-top: auto;
}

.explore-desc {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-faint);
  transition: color 0.2s ease, opacity 0.2s ease;
}

@media (prefers-reduced-motion: reduce) {
  .explore-tile {
    transition: background-color 0.2s ease, color 0.2s ease;
  }
  .explore-tile:hover {
    transform: none;
  }
  .explore-tile::after {
    transition: none;
  }
}

@media (max-width: 760px) {
  .explore-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 460px) {
  .explore-grid {
    grid-template-columns: 1fr;
  }
}

/* explainer */

.explainer {
  max-width: var(--max);
  margin: 56px auto 0;
  padding: 0 var(--gutter) 16px;
}

/* how to get started */

.steps {
  max-width: var(--max);
  margin: 0 auto;
  padding: 64px var(--gutter) 16px;
  border-top: 1px solid var(--hairline);
}

.steps-list {
  list-style: none;
}

.steps-list li {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 20px;
  padding: 22px 0;
  border-bottom: 1px solid var(--hairline);
}

.steps-index {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink-faint);
  padding-top: 2px;
}

.steps-body {
  font-size: 15px;
  color: var(--ink-soft);
  max-width: 52ch;
}

.steps-body strong {
  color: var(--ink);
  font-weight: 600;
}

.steps-body code {
  font-family: var(--mono);
  font-size: 13px;
  background: var(--panel);
  padding: 2px 6px;
  border-radius: 4px;
}

/* pull quotes */

.pullquote {
  max-width: 760px;
  margin: 0 auto;
  padding: 88px var(--gutter);
  text-align: center;
}

.pullquote p {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(22px, 3.2vw, 30px);
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.pullquote-alt {
  padding-top: 0;
}

/* clear space diagram */

.clearspace {
  max-width: var(--max);
  margin: 0 auto;
  padding: 64px var(--gutter) 88px;
  border-top: 1px solid var(--hairline);
  text-align: center;
}

.clearspace-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 56px;
  margin: 40px 0 32px;
}

.clearspace-mark {
  border-radius: 6px;
  object-fit: cover;
}

.clearspace-mark.large {
  width: 140px;
  height: 140px;
}

.clearspace-mark.small {
  width: 56px;
  height: 56px;
}

.clearspace-mark.breathing {
  animation: breathe 4s ease-in-out infinite;
}

@keyframes breathe {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(0.93); }
}

@media (prefers-reduced-motion: reduce) {
  .clearspace-mark.breathing {
    animation: none;
  }
}

.clearspace-caption {
  font-size: 14px;
  color: var(--ink-soft);
  max-width: 42ch;
  margin: 0 auto;
}

/* spec sheet / ticker */

.spec-sheet {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter) 96px;
}

.spec-sheet-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
  border-top: 1px solid var(--hairline);
}

.spec-sheet-row:last-child {
  border-bottom: 1px solid var(--hairline);
}

.spec-sheet-label {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ink-faint);
  text-transform: uppercase;
}

.spec-sheet-value {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink-soft);
}

.spec-sheet-chip {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 6px 14px;
  border: 1px solid var(--ink);
  border-radius: 999px;
}

/* colophon / footer */

.colophon {
  max-width: var(--max);
  margin: 0 auto;
  padding: 32px var(--gutter) 96px;
}

.colophon a {
  font-size: 13px;
  border-bottom: 1px solid var(--ink-faint);
}

.colophon a:hover {
  border-bottom-color: var(--ink);
}

.fine-print {
  margin-top: 18px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-faint);
  max-width: 48ch;
}

/* responsive */

@media (max-width: 760px) {
  .announcement {
    grid-template-columns: 1fr;
  }
  .assets {
    grid-template-columns: 1fr;
  }
  .clearspace-row {
    gap: 32px;
  }
  .steps-list li {
    grid-template-columns: 1fr;
    gap: 6px;
  }
}

/* subpages */

.sub-masthead {
  max-width: var(--max);
  margin: 0 auto;
  padding: 28px var(--gutter);
  border-bottom: 1px solid var(--hairline);
  animation: rise 0.5s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.sub {
  animation: rise 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;
  animation-delay: 0.08s;
}

@media (prefers-reduced-motion: reduce) {
  .sub-masthead,
  .sub {
    animation: none;
  }
}

.sub-masthead a {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-soft);
}

.sub-masthead a:hover {
  color: var(--ink);
}

.sub {
  max-width: 680px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: clamp(24px, 5vw, 48px);
  padding: clamp(56px, 8vw, 96px) var(--gutter) 120px;
}

.sub .tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-faint);
  padding-top: 6px;
}

.sub-content h1 {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(26px, 4vw, 34px);
  letter-spacing: -0.01em;
  margin-bottom: 28px;
}

.sub-content p {
  font-size: 15px;
  color: var(--ink-soft);
  margin-bottom: 22px;
  max-width: 48ch;
}

.sub-content ul {
  list-style: none;
  margin-bottom: 22px;
  border-top: 1px solid var(--hairline);
}

.sub-content li {
  font-size: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--hairline);
}

.sub-content li a {
  border-bottom: 1px solid var(--ink-faint);
  transition: border-color 0.15s ease;
}

.sub-content li a:hover {
  border-bottom-color: var(--ink);
}

.sub-content li span {
  display: block;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-faint);
  margin-top: 4px;
}

.sub-content .stamp {
  margin-top: 56px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-faint);
}

@media (max-width: 560px) {
  .sub {
    grid-template-columns: 1fr;
  }
}