@font-face {
  font-family: Inter;
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("fonts/inter-latin-400-normal.woff2") format("woff2");
}

@font-face {
  font-family: Inter;
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("fonts/inter-latin-600-normal.woff2") format("woff2");
}

@font-face {
  font-family: Inter;
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("fonts/inter-latin-700-normal.woff2") format("woff2");
}

:root {
  --ink: #1b1c1e;
  --muted: #3e4651;
  --paper: #f4f1ea;
  --card: #ffffff;
  --line: #ddd6cb;
  --blue: #0b57d0;
  --blue-soft: #e8f0fe;
  --red: #8c1d18;
  --red-soft: #fde7e5;
  --red-bar: #b3261e;
  --amber: #6b4a00;
  --amber-soft: #fff4d6;
  --amber-bar: #c48a00;
  --green: #0d652d;
  --green-soft: #e7f5ec;
  --shadow: 0 16px 40px rgba(40, 32, 22, 0.08);
  --radius: 18px;
  --focus: #0b57d0;
  --max: 1120px;
  --section-gap: 2.75rem;
  --measure: 70ch;
  --footer: #5f6368;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 6.5rem;
}

body {
  margin: 0;
  color: var(--ink);
  background: linear-gradient(180deg, #e7eef8 0%, var(--paper) 220px);
  font-family: Inter, "Segoe UI", sans-serif;
  font-size: 1.0625rem;
  line-height: 1.58;
}

img,
svg {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--blue);
}

a:hover {
  text-decoration-thickness: 2px;
}

:focus {
  outline: none;
}

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

.skip {
  position: absolute;
  left: 1rem;
  top: 0;
  transform: translateY(-120%);
  background: var(--ink);
  color: white;
  padding: 0.7rem 1rem;
  border-radius: 0 0 10px 10px;
  z-index: 20;
}

.skip:focus {
  transform: none;
}

.wrap {
  width: min(var(--max), calc(100% - 2rem));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

section,
.hero,
h2 {
  scroll-margin-top: 6.5rem;
}

.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  padding: 0.85rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
}

.mark {
  width: 22px;
  height: 22px;
  flex: none;
  color: var(--ink);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.9rem;
}

.nav a {
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.35rem 0.15rem;
}

.nav a:hover {
  color: var(--blue);
}

.nav a[aria-current="page"] {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 0.2rem;
}

.hero {
  padding: var(--section-gap) 0 0;
}

.nameplate {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.25rem 2rem;
  margin: 0 0 1.5rem;
}

.person-name {
  margin: 0;
  font-size: clamp(2rem, 4vw, 2.75rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  font-weight: 700;
}

.person-headline {
  margin: 0.35rem 0 0;
  max-width: 100%;
  font-weight: 600;
  line-height: 1.45;
}

.nameplate > div {
  min-width: 0;
  max-width: 100%;
}

.person-headline span {
  display: inline-block;
  white-space: nowrap;
}

.person-headline span + span {
  margin-left: 0.35em;
}

.qr-block {
  width: max-content;
  max-width: 100%;
  margin: 1rem 0 0;
  padding: 0;
  text-align: center;
}

.qr-block img {
  display: block;
  width: 180px;
  height: 180px;
  min-width: 160px;
  min-height: 160px;
  margin: 0 auto;
  background: #ffffff;
}

.qr-block figcaption {
  margin: 0.45rem 0 0;
  text-align: center;
}

.qr-block figcaption a {
  display: inline;
  white-space: nowrap;
  overflow-wrap: normal;
  text-align: center;
}

.eyebrow {
  margin: 0 0 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.82rem;
  color: var(--blue);
}

h1 {
  margin: 0;
  font-size: clamp(2.3rem, 5vw, 4.1rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  max-width: 16ch;
}

.lede,
.section-intro,
.about-block p,
.about-block li,
.steps article p,
.probes p,
.path,
.caption,
.card p,
.takeaways p,
.result p,
.quote,
.tagline,
.versions {
  max-width: var(--measure);
}

.lede {
  font-size: 1.2rem;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.5rem 0 1.75rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.65rem 1.1rem;
  border-radius: 999px;
  border: 2px solid transparent;
  font: inherit;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
}

.button.primary {
  background: var(--blue);
  color: white;
}

.button.primary:hover {
  background: #0842a0;
}

.button.ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--ink);
}

.button.ghost:hover {
  background: white;
}

.facts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.8rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.facts li {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0.9rem 1rem 1rem;
  border-top: 4px solid var(--blue);
}

.facts li:nth-child(n) { border-top-color: var(--blue); }

.facts strong {
  display: block;
  font-size: 0.98rem;
}

.facts span {
  color: var(--muted);
  font-size: 0.92rem;
}

section {
  padding: 0;
  margin: var(--section-gap) 0 0;
}

h2 {
  margin: 0 0 0.4rem;
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.section-intro {
  color: var(--muted);
  margin-top: 0;
}

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem;
}

.diagram {
  margin-top: 1rem;
}

.diagram svg {
  width: 100%;
  height: auto;
}

.diagram svg.arch-wide {
  display: block;
}

.diagram svg.arch-stack {
  display: none;
}

.caption {
  margin: 0.8rem 0.2rem 0.2rem;
  color: var(--muted);
}

.cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem 1.3rem 1.35rem;
  box-shadow: var(--shadow);
}

.card h3 {
  margin: 0.35rem 0 0.5rem;
  font-size: 1.45rem;
  letter-spacing: -0.02em;
}

.tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
}

.tag.blue { background: var(--blue-soft); color: var(--blue); }
.tag.green { background: var(--green-soft); color: var(--green); }
.tag.red { background: var(--red-soft); color: var(--red); }
.tag.amber { background: var(--amber-soft); color: var(--amber); }

.card p:last-child,
.takeaways li:last-child {
  margin-bottom: 0;
}

.steps {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.8rem;
}

.steps li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.9rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1rem 1.1rem;
}

.steps article h3 {
  margin: 0 0 0.3rem;
  font-size: 1.15rem;
}

.steps article p {
  margin: 0;
  color: var(--muted);
}

.num {
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-weight: 700;
  color: white;
  background: var(--blue);
}

.steps .num { background: var(--blue); color: white; }

.replay-banner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.6rem 1rem;
  align-items: center;
  background: var(--amber-soft);
  color: var(--amber);
  border-radius: 14px;
  padding: 0.85rem 1rem;
  font-weight: 700;
}

.replay-banner p {
  margin: 0;
}

.query {
  margin: 1rem 0;
  padding: 1rem 1.1rem;
  background: var(--blue-soft);
  border-radius: 16px 16px 16px 4px;
}

.query p {
  margin: 0.2rem 0 0;
  font-size: 1.15rem;
}

.who {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--blue);
}

.results {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
}

.result {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1rem;
  background: #fbfaf7;
}

.result h3 {
  margin: 0.4rem 0;
}

.stat {
  font-size: 1.55rem;
  letter-spacing: -0.03em;
  margin: 0.2rem 0;
}

dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.15rem 0.8rem;
  margin: 0.6rem 0 0;
}

dt {
  font-weight: 700;
}

dd {
  margin: 0;
}

.path {
  color: var(--muted);
  font-size: 0.95rem;
}

.probes {
  display: grid;
  gap: 0.45rem;
  margin-top: 0.9rem;
}

.probes p {
  margin: 0;
  color: var(--muted);
}

code,
.mono {
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 0.9em;
  background: #f1f3f4;
  border-radius: 4px;
  padding: 0.08em 0.35em;
  overflow-wrap: anywhere;
}

a {
  overflow-wrap: anywhere;
}

pre code {
  background: transparent;
  border-radius: 0;
  padding: 0;
}

.takeaways {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
  margin-top: 1rem;
}

.takeaways article {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1rem 1.1rem;
}

.takeaways h3 {
  margin: 0 0 0.35rem;
  font-size: 1.1rem;
}

.commands {
  display: grid;
  gap: 0.7rem;
  margin-top: 0.8rem;
}

.commands pre {
  margin: 0;
  background: #1b1c1e;
  color: #f4f1ea;
  border-radius: 12px;
  padding: 0.85rem 1rem;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.commands pre code {
  color: inherit;
  font-size: 0.92rem;
}

.live {
  margin-top: 1.2rem;
  border-top: 1px solid var(--line);
  padding-top: 1.1rem;
}

.live-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem 1rem;
  align-items: center;
  justify-content: space-between;
}

.toggle {
  min-height: 44px;
  border-radius: 999px;
  border: 2px solid var(--ink);
  background: white;
  color: var(--ink);
  font: inherit;
  font-weight: 700;
  padding: 0.5rem 1rem;
  cursor: pointer;
}

.toggle[aria-pressed="true"] {
  background: var(--green);
  border-color: var(--green);
  color: white;
}

.live-form {
  display: grid;
  gap: 0.55rem;
  margin-top: 0.9rem;
}

textarea {
  width: 100%;
  min-height: 6.5rem;
  font: inherit;
  font-size: 1rem;
  padding: 0.75rem 0.8rem;
  border-radius: 12px;
  border: 1px solid var(--line);
  resize: vertical;
  color: var(--ink);
  background: white;
}

#live-status {
  min-height: 1.5rem;
  font-weight: 600;
}

.live-answer {
  white-space: pre-wrap;
  background: #fbfaf7;
  border-radius: 12px;
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--line);
}

.live-answer:empty {
  display: none;
}

.site-footer {
  margin-top: var(--section-gap);
  padding: 1.5rem 0 2rem;
  border-top: 1px solid var(--line);
  color: var(--footer);
}

.site-footer p {
  margin: 0.3rem 0;
}

.fine {
  font-size: 0.95rem;
}

@media (max-width: 800px) {
  html,
  section,
  .hero,
  h2 {
    scroll-padding-top: 12rem;
    scroll-margin-top: 12rem;
  }

  html {
    scroll-padding-top: 12rem;
  }

  .facts,
  .cards,
  .results,
  .takeaways {
    grid-template-columns: 1fr;
  }

  .diagram svg.arch-wide {
    display: none;
  }

  .diagram svg.arch-stack {
    display: block;
  }

  h1 {
    max-width: none;
  }
}

@media (max-width: 560px) {
  .hero {
    padding-top: var(--section-gap);
  }

  .steps li {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .wrap {
    width: calc(100% - 40px);
  }

  .site-header .wrap {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0.15rem;
    min-width: 0;
  }

  .nav {
    flex-wrap: nowrap;
    overflow-x: auto;
    min-width: 0;
    max-width: 100%;
    gap: 0.85rem;
    padding-bottom: 0.45rem;
  }

  .nav a {
    flex: 0 0 auto;
    white-space: nowrap;
  }

  .nav.nav-can-scroll {
    -webkit-mask-image: linear-gradient(to right, #000 calc(100% - 2.5rem), transparent);
    mask-image: linear-gradient(to right, #000 calc(100% - 2.5rem), transparent);
  }

  .about-block ol,
  .about-block ul {
    max-width: 100%;
    margin-left: 0;
    margin-right: 0;
    padding-left: 0;
    list-style-position: inside;
  }
}

.about h1 {
  max-width: 18ch;
}

.tagline {
  margin: 0.4rem 0 0;
  font-weight: 700;
}

.about-block {
  margin-top: 0;
}

.about-block > section {
  margin-top: var(--section-gap);
}

.about-block p,
.flow {
  overflow-wrap: anywhere;
}

.about-block h2 {
  margin-top: 0;
}

.about-block ul,
.about-block ol {
  margin: 0.6rem 0 0;
  padding-left: 1.5rem;
  max-width: min(var(--measure), 100%);
}

.about-block li {
  margin: 0.45rem 0;
}

.about-block li::marker {
  color: var(--blue);
  font-weight: 700;
}

.quote {
  margin: 1rem 0 0;
  padding: 0.9rem 1rem;
  background: var(--card);
  border-left: 4px solid var(--blue);
  border-radius: 0 12px 12px 0;
}

.quote p {
  margin: 0;
  font-size: 1.15rem;
}

.quote footer {
  margin-top: 0.35rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.versions {
  margin-top: 0.8rem;
  color: var(--muted);
  overflow-wrap: anywhere;
}

.flow {
  margin: 0.8rem 0 0;
  max-width: min(var(--measure), 100%);
  padding: 0.85rem 1rem;
  background: #f1f3f4;
  border-radius: 8px;
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 0.92rem;
  line-height: 1.55;
  white-space: pre-wrap;
}

.run-in {
  margin-top: 1.5rem;
}

.run-in + .run-in {
  margin-top: 1.75rem;
}

.run-in strong {
  font-weight: 700;
}

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

  .packet {
    display: none;
  }
}

@media (max-width: 480px) {
  .wrap {
    width: calc(100% - 40px);
  }

  .nameplate {
    flex-direction: column;
    align-items: flex-start;
  }

  .qr-block {
    width: max-content;
    max-width: 100%;
    margin-top: 0.25rem;
    text-align: left;
  }

  .qr-block img {
    margin: 0;
  }

  .qr-block figcaption,
  .qr-block figcaption a {
    text-align: left;
  }

  .about-block ol,
  .about-block ul {
    max-width: 100%;
    margin-left: 0;
    margin-right: 0;
    padding-left: 0;
    list-style-position: inside;
  }
}