:root {
  --ink: #17162e;
  --paper: #f5efe3;
  --cream: #fffaf1;
  --blue: #4056ef;
  --coral: #ff6553;
  --yellow: #f6cb3d;
  --mint: #70d7ad;
  --plum: #8c4bd8;
  --sky: #b9ddff;
  --line: rgba(23, 22, 46, 0.16);
  --display:
    ui-rounded, "SF Pro Rounded", "Arial Rounded MT Bold", system-ui, sans-serif;
  --body: "Avenir Next", Avenir, Inter, system-ui, sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 17px/1.65 var(--body);
}
a {
  color: inherit;
  text-underline-offset: 4px;
}
img {
  max-width: 100%;
}
.skip {
  position: fixed;
  top: -80px;
  left: 18px;
  z-index: 100;
  padding: 11px 16px;
  border-radius: 10px;
  background: var(--yellow);
  font-weight: 850;
}
.skip:focus {
  top: 18px;
}
.progress {
  position: fixed;
  inset: 0 auto auto 0;
  z-index: 90;
  width: 0;
  height: 4px;
  background: var(--coral);
}
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  min-height: 70px;
  padding: 12px clamp(18px, 4vw, 62px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  background: rgba(245, 239, 227, 0.92);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font: 850 14px/1 var(--display);
  letter-spacing: 0.08em;
}
.brand span {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: var(--ink);
  color: var(--yellow);
  transform: rotate(-6deg);
}
.back {
  padding: 9px 14px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  text-decoration: none;
  font: 750 12px/1 var(--body);
  background: var(--cream);
}
.back:hover,
.back:focus-visible {
  background: var(--yellow);
}
.guide-hero {
  padding: clamp(48px, 8vw, 100px) clamp(20px, 5vw, 80px) 58px;
  border-bottom: 2px solid var(--ink);
  background: var(--hero, var(--yellow));
}
.kicker {
  margin: 0 0 18px;
  font: 750 10px/1 var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.guide-hero h1 {
  max-width: 980px;
  margin: 0;
  font: 850 clamp(48px, 8vw, 100px) / 0.88 var(--display);
  letter-spacing: -0.055em;
}
.guide-hero .lede {
  max-width: 770px;
  margin: 26px 0 0;
  font-size: clamp(19px, 2vw, 25px);
  line-height: 1.45;
}
.hero-note {
  max-width: 920px;
  margin: 34px 0 0;
  padding: 18px 22px;
  border: 2px solid var(--ink);
  border-radius: 18px;
  background: var(--cream);
  box-shadow: 6px 7px 0 var(--ink);
  font-weight: 750;
}
.guide-shell {
  display: grid;
  grid-template-columns: 260px minmax(0, 820px);
  gap: clamp(38px, 6vw, 92px);
  justify-content: center;
  padding: 50px clamp(20px, 5vw, 76px) 100px;
}
.toc {
  position: sticky;
  top: 94px;
  align-self: start;
}
.toc button {
  display: none;
}
.toc-label {
  margin: 0 0 14px;
  font: 750 9px/1 var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.toc ol {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}
.toc a {
  display: block;
  padding: 11px 8px;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  font-size: 13px;
  font-weight: 700;
  color: #666174;
}
.toc a:hover,
.toc a.is-active {
  padding-left: 13px;
  color: var(--blue);
  background: rgba(64, 86, 239, 0.07);
}
.guide-main > section {
  scroll-margin-top: 100px;
  margin-bottom: 74px;
}
.guide-main h2 {
  margin: 0 0 22px;
  font: 850 clamp(35px, 5vw, 54px) / 1 var(--display);
  letter-spacing: -0.04em;
}
.guide-main h3 {
  margin: 34px 0 12px;
  font: 800 26px/1.08 var(--display);
  letter-spacing: -0.025em;
}
.guide-main p {
  margin: 0 0 18px;
}
.guide-main ul,
.guide-main ol {
  padding-left: 24px;
}
.guide-main li + li {
  margin-top: 8px;
}
.guide-main code {
  padding: 2px 6px;
  border-radius: 5px;
  background: #e7dfd1;
  font: 14px/1.4 var(--mono);
}
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0;
}
.chip {
  padding: 7px 10px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  background: var(--cream);
  font: 700 9px/1 var(--mono);
  letter-spacing: 0.07em;
  text-transform: uppercase;
}
.panel {
  margin: 28px 0;
  padding: 26px;
  border: 2px solid var(--ink);
  border-radius: 24px;
  background: var(--cream);
  box-shadow: 7px 8px 0 var(--ink);
}
.panel.yellow {
  background: var(--yellow);
}
.panel.blue {
  background: var(--blue);
  color: #fff;
}
.panel.mint {
  background: var(--mint);
}
.panel.coral {
  background: var(--coral);
  color: #fff;
}
.panel h3 {
  margin-top: 0;
}
.guide-photo {
  margin: 0 0 54px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--cream);
  box-shadow: 8px 10px 0 var(--ink);
}
.guide-photo img {
  width: 100%;
  display: block;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}
.guide-photo figcaption {
  padding: 16px 20px 18px;
  color: #625d6d;
  font-size: 13px;
}
.guide-photo figcaption b {
  margin-right: 8px;
  color: var(--ink);
}

.guide-photo.real-inventory img {
  aspect-ratio: auto;
  max-height: 820px;
  object-fit: contain;
  background: #fff;
}

.diagram {
  margin: 30px 0;
  padding: 28px;
  border-radius: 26px;
  background: var(--ink);
  color: #fff;
  overflow: auto;
}
.diagram pre {
  margin: 0;
  font: 600 13px/1.65 var(--mono);
  white-space: pre;
}
.diagram figcaption {
  margin-top: 18px;
  color: #c7c4d3;
  font-size: 13px;
}
.cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 24px 0;
}
.card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 21px;
  background: var(--cream);
}
.card h3 {
  margin: 10px 0 9px;
}
.card p {
  margin: 0;
  color: #625d6d;
}
.card .glyph {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border: 2px solid var(--ink);
  border-radius: 14px;
  background: var(--yellow);
  box-shadow: 3px 3px 0 var(--ink);
  font: 800 21px/1 var(--display);
}
.step {
  margin: 28px 0;
  padding: 0;
  border: 2px solid var(--ink);
  border-radius: 26px;
  background: var(--cream);
  overflow: hidden;
  box-shadow: 7px 8px 0 var(--ink);
}
.step-head {
  padding: 24px 26px;
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 18px;
  align-items: center;
  background: var(--yellow);
  border-bottom: 2px solid var(--ink);
}
.step-num {
  width: 50px;
  height: 50px;
  display: grid;
  place-items: center;
  border-radius: 15px;
  background: var(--ink);
  color: #fff;
  font: 750 11px/1 var(--mono);
}
.step h3 {
  margin: 0;
}
.step-body {
  padding: 26px;
}
.action {
  font-size: 20px;
  font-weight: 760;
}
.state-visual {
  min-height: 170px;
  margin: 22px 0;
  padding: 24px;
  display: grid;
  place-items: center;
  text-align: center;
  border-radius: 20px;
  background: #272541;
  color: #fff;
}
.state-visual strong {
  display: block;
  font: 850 clamp(25px, 4vw, 43px) / 1 var(--display);
  letter-spacing: -0.03em;
}
.state-visual small {
  display: block;
  margin-top: 10px;
  color: #c9c5d6;
  font: 700 9px/1 var(--mono);
  letter-spacing: 0.11em;
  text-transform: uppercase;
}
.state-visual.yellow {
  background: var(--yellow);
  color: var(--ink);
}
.state-visual.yellow small {
  color: #5c5334;
}
.state-visual.blue {
  background: var(--blue);
}
.state-visual.mint {
  background: var(--mint);
  color: var(--ink);
}
.state-visual.mint small {
  color: #255343;
}
.instruction-visual {
  margin: 22px 0;
  overflow: hidden;
  border: 2px solid var(--ink);
  background: var(--cream);
  box-shadow: 7px 8px 0 var(--ink);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 20px 100%, 0 calc(100% - 20px));
}
.instruction-visual img { width: 100%; display: block; }
.instruction-visual figcaption {
  padding: 14px 18px 18px;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
  border-top: 2px solid var(--ink);
  background: var(--yellow);
  font-size: 12px;
  font-weight: 750;
}
.instruction-visual figcaption span { display: flex; gap: 7px; align-items: center; }
.instruction-visual figcaption b {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--blue);
  color: #fff;
  font: 800 10px/1 var(--mono);
}
.check-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 20px;
}
.check {
  padding: 17px;
  border-radius: 15px;
  background: #dcf5e9;
}
.check.bad {
  background: #ffe0db;
}
.check b {
  display: block;
  margin-bottom: 5px;
  font: 750 9px/1 var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.check p {
  margin: 0;
  font-size: 14px;
}
.table-wrap {
  overflow: auto;
  margin: 24px 0;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--cream);
}
table {
  width: 100%;
  border-collapse: collapse;
  min-width: 620px;
}
th,
td {
  padding: 15px 17px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
th {
  background: #eae2d4;
  font: 750 10px/1 var(--mono);
  letter-spacing: 0.09em;
  text-transform: uppercase;
}
tr:last-child td {
  border-bottom: 0;
}
.do-dont {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.do-dont article {
  padding: 22px;
  border-radius: 19px;
}
.do-dont .do {
  background: #dff4e9;
}
.do-dont .dont {
  background: #ffe0db;
}
.do-dont h3 {
  margin-top: 0;
}
.source-list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.source-list li {
  margin: 0;
  padding: 17px 0;
  border-bottom: 1px solid var(--line);
}
.source-list a {
  font-weight: 800;
}
.guide-completion {
  margin-top: 80px;
  padding: clamp(24px, 4vw, 38px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: center;
  border: 2px solid var(--ink);
  border-radius: 24px;
  background: var(--yellow);
  box-shadow: 7px 8px 0 var(--ink);
}
.guide-completion h2 {
  margin: 0 0 10px;
  font-size: clamp(30px, 4vw, 44px);
}
.guide-completion p {
  margin: 0;
}
.completion-kicker {
  margin-bottom: 12px !important;
  font: 750 9px/1 var(--mono);
  letter-spacing: 0.13em;
  text-transform: uppercase;
}
.completion-actions {
  min-width: 190px;
  display: grid;
  gap: 9px;
}
.completion-actions button,
.completion-actions a {
  min-height: 46px;
  padding: 12px 16px;
  border: 2px solid var(--ink);
  border-radius: 13px;
  background: var(--ink);
  color: #fff;
  font: 800 13px/1 var(--body);
  text-align: center;
  text-decoration: none;
  cursor: pointer;
}
.completion-actions a {
  background: var(--cream);
  color: var(--ink);
}
.completion-actions button:hover:not(:disabled),
.completion-actions button:focus-visible,
.completion-actions a:hover,
.completion-actions a:focus-visible {
  transform: translateY(-2px);
  box-shadow: 3px 4px 0 var(--ink);
}
.completion-actions button:disabled {
  background: var(--mint);
  color: var(--ink);
  cursor: default;
}
.completion-actions small {
  font: 700 9px/1.35 var(--mono);
  text-align: center;
  text-transform: uppercase;
}
.guide-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 80px;
  padding-top: 26px;
  border-top: 2px solid var(--ink);
}
.guide-nav a {
  min-height: 106px;
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border: 1px solid var(--ink);
  border-radius: 18px;
  background: var(--cream);
  text-decoration: none;
}
.guide-nav a:last-child {
  text-align: right;
}
.guide-nav a:hover,
.guide-nav a:focus-visible {
  background: var(--yellow);
  box-shadow: 4px 5px 0 var(--ink);
  transform: translateY(-2px);
}
.guide-nav small {
  font: 700 9px/1 var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.guide-nav b {
  margin-top: 8px;
  font: 800 18px/1.15 var(--display);
}
.guide-footer {
  padding: 40px clamp(20px, 5vw, 76px);
  display: flex;
  justify-content: space-between;
  gap: 25px;
  background: var(--ink);
  color: #fff;
  font-size: 13px;
}
.guide-footer a {
  font-weight: 800;
  color: var(--yellow);
}
@media (max-width: 850px) {
  .guide-shell {
    display: block;
  }
  .toc {
    position: relative;
    top: auto;
    margin: 0 0 42px;
  }
  .toc button {
    width: 100%;
    padding: 14px 16px;
    display: flex;
    justify-content: space-between;
    border: 2px solid var(--ink);
    border-radius: 14px;
    background: var(--cream);
    font-weight: 800;
  }
  .toc nav {
    display: none;
    margin-top: 8px;
  }
  .toc.is-open nav {
    display: block;
  }
  .cards,
  .do-dont {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 560px) {
  .instruction-visual figcaption { grid-template-columns: 1fr 1fr; }
  body {
    font-size: 16px;
  }
  .back {
    padding: 8px 11px;
    font-size: 11px;
  }
  .back:after {
    content: none;
  }
  .guide-hero {
    padding-top: 44px;
  }
  .guide-hero h1 {
    font-size: 50px;
  }
  .guide-shell {
    padding-left: 16px;
    padding-right: 16px;
  }
  .check-row,
  .guide-nav {
    grid-template-columns: 1fr;
  }
  .guide-completion {
    grid-template-columns: 1fr;
  }
  .guide-nav a:last-child {
    text-align: left;
  }
  .guide-footer {
    display: block;
  }
  .guide-footer a {
    display: block;
    margin-top: 12px;
  }
  .step-head {
    grid-template-columns: 46px 1fr;
    padding: 18px;
  }
  .step-num {
    width: 42px;
    height: 42px;
  }
  .step-body {
    padding: 19px;
  }
  .panel,
  .diagram {
    padding: 20px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *:before,
  *:after {
    transition: none !important;
    animation: none !important;
  }
  .guide-nav a:hover {
    transform: none;
  }
}
@media print {
  .topbar,
  .toc,
  .progress,
  .guide-completion,
  .guide-footer {
    display: none;
  }
  .guide-shell {
    display: block;
    padding: 20px;
  }
  .guide-hero {
    padding: 28px;
  }
  .guide-main > section {
    break-before: page;
  }
  .guide-main > section:first-child {
    break-before: auto;
  }
  .step,
  .panel,
  .card {
    box-shadow: none;
    break-inside: avoid;
  }
  .guide-nav {
    display: none;
  }
}