/* React Build Book: guide styles.
   Previews of student apps use starter.css (classes like .card, .btn), so the
   guide only uses its own class names and never styles bare elements that
   could leak into a preview. */

:root {
  --paper: #e3ebf3;
  --panel: #ffffff;
  --panel-2: #f3f6fa;
  --ink: #16203a;
  --ink-2: #48566f;
  --ink-3: #8696ad;
  --hair: #c5d1df;
  --code-bg: #141c2e;
  --code-head: #1c2740;
  --code-line: #2c3a57;
  --inline-code: #d5e0ec;
  --focus: #1c62cc;
  --yellow: #f5be16;
  --red: #d8382a;
  --blue: #1c62cc;
  --green: #1f8a55;
  --grey: #7d8ca3;
  --on-dark: #ffffff;
  --on-light: #16203a;
  --font: "Archivo", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "Cascadia Code", Menlo, monospace;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0e1525;
    --panel: #172137;
    --panel-2: #1c2842;
    --ink: #e5ecf5;
    --ink-2: #a6b4c8;
    --ink-3: #61728d;
    --hair: #2c3a55;
    --code-bg: #0a1020;
    --code-head: #121a2d;
    --code-line: #26324b;
    --inline-code: #24314b;
    --focus: #f5be16;
    --blue: #3d82ea;
    --green: #2aa868;
    --red: #e5503f;
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --paper: #0e1525;
  --panel: #172137;
  --panel-2: #1c2842;
  --ink: #e5ecf5;
  --ink-2: #a6b4c8;
  --ink-3: #61728d;
  --hair: #2c3a55;
  --code-bg: #0a1020;
  --code-head: #121a2d;
  --code-line: #26324b;
  --inline-code: #24314b;
  --focus: #f5be16;
  --blue: #3d82ea;
  --green: #2aa868;
  --red: #e5503f;
  color-scheme: dark;
}

/* Concept colours. A build's colour is its main concept. */
.c-grey { --c: var(--grey); --on-c: var(--on-dark); }
.c-yellow { --c: var(--yellow); --on-c: var(--on-light); }
.c-blue { --c: var(--blue); --on-c: var(--on-dark); }
.c-red { --c: var(--red); --on-c: var(--on-dark); }
.c-green { --c: var(--green); --on-c: var(--on-dark); }

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--blue);
  text-underline-offset: 3px;
}

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

a[data-api] {
  font-family: var(--mono);
  font-size: 0.86em;
  overflow-wrap: anywhere;
}

:not(pre) > code {
  padding: 0.1em 0.35em;
  font-family: var(--mono);
  font-size: 0.86em;
  background: var(--inline-code);
  border-radius: 4px;
}

kbd {
  padding: 0.05em 0.4em;
  font-family: var(--mono);
  font-size: 0.85em;
  background: var(--panel);
  border: 1px solid var(--hair);
  border-bottom-width: 2px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -60px;
  z-index: 100;
  padding: 8px 14px;
  color: var(--paper);
  background: var(--ink);
  border-radius: 6px;
}

.skip-link:focus {
  top: 12px;
}

/* ---------- Top bar ---------- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 10px 24px;
  background: var(--panel);
  border-bottom: 2px solid var(--ink);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-stretch: 112%;
  font-size: 1.05rem;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
}

.brand-brick {
  position: relative;
  width: 26px;
  height: 16px;
  margin-top: 5px;
  background: var(--red);
  border: 2px solid var(--ink);
  border-radius: 3px;
}

.brand-brick::before,
.brand-brick::after {
  content: "";
  position: absolute;
  top: -7px;
  width: 8px;
  height: 6px;
  background: var(--red);
  border: 2px solid var(--ink);
  border-bottom: 0;
  border-radius: 2px 2px 0 0;
}

.brand-brick::before { left: 2px; }
.brand-brick::after { right: 2px; }

.api-setting {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
  min-width: 0;
}

.api-setting label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--ink-2);
  white-space: nowrap;
}

.field {
  min-width: 0;
  padding: 7px 10px;
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--ink);
  background: var(--panel-2);
  border: 2px solid var(--hair);
  border-radius: 6px;
}

.field:focus {
  border-color: var(--focus);
}

#api-url {
  width: 280px;
}

.api-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--ink-2);
  white-space: nowrap;
}

.api-status::before {
  content: "";
  width: 10px;
  height: 10px;
  background: var(--ink-3);
  border-radius: 50%;
}

.api-status.is-ok::before { background: var(--green); }
.api-status.is-down::before { background: var(--red); }

.icon-btn {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  padding: 0;
  color: var(--ink);
  background: transparent;
  border: 2px solid var(--hair);
  border-radius: 8px;
  cursor: pointer;
}

.icon-btn:hover {
  border-color: var(--ink);
}

/* ---------- Layout ---------- */

.layout {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 56px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

.content {
  max-width: 800px;
  padding-bottom: 120px;
}

/* ---------- Sidebar ---------- */

.toc {
  position: sticky;
  top: 62px;
  align-self: start;
  max-height: calc(100vh - 62px);
  padding: 32px 0 24px;
  overflow-y: auto;
}

.toc-heading {
  margin: 0 0 8px 8px;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--ink-2);
}

.toc-list {
  display: grid;
  gap: 2px;
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
}

.toc-link {
  display: grid;
  grid-template-columns: 24px 1fr;
  align-items: center;
  gap: 10px;
  padding: 6px 8px;
  font-size: 0.95rem;
  line-height: 1.3;
  color: var(--ink-2);
  text-decoration: none;
  border-radius: 6px;
}

.toc-link:hover {
  color: var(--ink);
  background: var(--panel-2);
}

.toc-link.is-current {
  font-weight: 700;
  color: var(--ink);
  background: var(--panel);
  box-shadow: inset 3px 0 0 var(--ink);
}

.toc-brick {
  position: relative;
  width: 22px;
  height: 14px;
  margin-top: 4px;
  border: 2px dashed var(--ink-3);
  border-radius: 3px;
}

.toc-brick::before {
  content: "";
  position: absolute;
  left: 50%;
  top: -6px;
  width: 8px;
  height: 5px;
  transform: translateX(-50%);
  border: 2px dashed var(--ink-3);
  border-bottom: 0;
  border-radius: 2px 2px 0 0;
}

.is-done > .toc-brick,
.is-done > .toc-brick::before {
  background: var(--c);
  border-style: solid;
  border-color: var(--ink);
}

.toc-plain {
  font-size: 1.1rem;
  text-align: center;
}

/* ---------- Hero ---------- */

.hero {
  padding: 64px 0 40px;
}

.hero-title {
  margin: 0 0 20px;
  font-size: clamp(2.6rem, 7vw, 4.6rem);
  font-weight: 900;
  font-stretch: 125%;
  line-height: 0.95;
  letter-spacing: -0.015em;
}

.lede {
  max-width: 60ch;
  margin: 0 0 36px;
  font-size: 1.2rem;
  color: var(--ink-2);
}

.brickrow {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 12px;
  margin: 0;
  padding: 12px 0 0;
  list-style: none;
}

.brick {
  position: relative;
  display: grid;
  place-items: center;
  width: 64px;
  height: 50px;
  padding: 0;
  font-family: var(--font);
  font-size: 1.15rem;
  font-weight: 900;
  font-stretch: 125%;
  color: var(--ink-3);
  text-decoration: none;
  background: transparent;
  border: 2px dashed var(--ink-3);
  border-radius: 6px;
  cursor: pointer;
  transition: transform 0.15s;
}

.brick::before,
.brick::after {
  content: "";
  position: absolute;
  top: -11px;
  width: 18px;
  height: 10px;
  border: 2px dashed var(--ink-3);
  border-bottom: 0;
  border-radius: 4px 4px 0 0;
}

.brick::before { left: 9px; }
.brick::after { right: 9px; }

.brick:hover {
  color: var(--ink);
  border-color: var(--ink);
  transform: translateY(-3px);
}

.brick:hover::before,
.brick:hover::after {
  border-color: var(--ink);
}

.brick.is-done {
  color: var(--on-c);
  background: var(--c);
  border: 2px solid var(--ink);
  box-shadow: inset 0 -6px 0 rgb(0 0 0 / 0.16);
}

.brick.is-done::before,
.brick.is-done::after {
  background: var(--c);
  border: 2px solid var(--ink);
  border-bottom: 0;
}

.brick.snap {
  animation: snap 0.5s cubic-bezier(0.3, 1.6, 0.5, 1);
}

@keyframes snap {
  from { transform: translateY(-18px); }
  to { transform: translateY(0); }
}

.progress-text {
  margin: 18px 0 0;
  font-weight: 600;
  color: var(--ink-2);
}

.howto {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin: 48px 0 0;
  padding: 24px 0 0;
  list-style: none;
  counter-reset: howto;
  border-top: 2px solid var(--ink);
}

.howto li {
  counter-increment: howto;
  font-size: 0.975rem;
  color: var(--ink-2);
}

.howto li::before {
  content: counter(howto);
  display: block;
  margin-bottom: 6px;
  font-size: 1.6rem;
  font-weight: 900;
  font-stretch: 125%;
  line-height: 1;
  color: var(--ink);
}

.howto strong {
  display: block;
  color: var(--ink);
}

/* ---------- Builds ---------- */

.build {
  margin-top: 56px;
  padding-top: 48px;
  border-top: 2px solid var(--ink);
}

.build-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 24px;
}

.build-num {
  position: relative;
  display: grid;
  place-items: center;
  width: 84px;
  height: 66px;
  margin-top: 14px;
  font-size: 2.1rem;
  font-weight: 900;
  font-stretch: 125%;
  color: var(--on-c);
  background: var(--c);
  border: 2px solid var(--ink);
  border-radius: 8px;
  box-shadow: inset 0 -8px 0 rgb(0 0 0 / 0.16);
}

.build-num::before,
.build-num::after {
  content: "";
  position: absolute;
  top: -14px;
  width: 24px;
  height: 13px;
  background: var(--c);
  border: 2px solid var(--ink);
  border-bottom: 0;
  border-radius: 5px 5px 0 0;
}

.build-num::before { left: 12px; }
.build-num::after { right: 12px; }

.build-title {
  margin: 0 0 10px;
  font-size: clamp(1.6rem, 3.6vw, 2.2rem);
  font-weight: 800;
  font-stretch: 112%;
  line-height: 1.1;
}

.parts {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.part {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 2px 11px 2px 8px;
  font-size: 0.85rem;
  font-weight: 600;
  background: var(--panel);
  border: 1.5px solid var(--hair);
  border-radius: 999px;
}

.part::before {
  content: "";
  width: 10px;
  height: 10px;
  background: var(--c);
  border: 1.5px solid var(--ink);
  border-radius: 50%;
}

.intro {
  max-width: 64ch;
  margin: 24px 0 0;
  font-size: 1.1rem;
}

.intro p {
  margin: 0 0 12px;
}

.section-title {
  margin: 40px 0 14px;
  font-size: 1.25rem;
  font-weight: 800;
  font-stretch: 112%;
}

/* ---------- Finished model (live preview) ---------- */

.model {
  margin: 32px 0 0;
}

.model-caption {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 12px;
  margin-bottom: 10px;
}

.model-caption strong {
  font-weight: 800;
  font-stretch: 112%;
}

.model-caption span {
  font-size: 0.9rem;
  color: var(--ink-2);
}

.browser {
  overflow: hidden;
  background: #eef3f8;
  border: 2px solid var(--ink);
  border-radius: 10px;
  box-shadow: 6px 6px 0 var(--c);
}

.browser-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 12px;
  background: var(--panel);
  border-bottom: 2px solid var(--ink);
}

.browser-bar span {
  padding: 2px 12px;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-2);
  background: var(--panel-2);
  border-radius: 999px;
}

.browser-reload {
  margin-left: auto;
  padding: 2px 10px;
  font: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ink-2);
  background: transparent;
  border: 1.5px solid var(--hair);
  border-radius: 6px;
  cursor: pointer;
}

.browser-reload:hover {
  color: var(--ink);
  border-color: var(--ink);
}

.browser-view {
  max-height: 600px;
  overflow: auto;
}

.browser-view > .app {
  padding: 20px;
}

/* ---------- Steps ---------- */

.steps {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.step {
  counter-increment: step;
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 14px;
  padding: 20px 22px 20px 18px;
  background: var(--panel);
  border: 2px solid var(--hair);
  border-radius: 10px;
  transition: border-color 0.2s, background-color 0.2s;
}

.step::before {
  content: counter(step);
  font-size: 2.3rem;
  font-weight: 900;
  font-stretch: 125%;
  line-height: 1;
  text-align: center;
  color: var(--ink);
}

.step.is-done {
  background: var(--panel-2);
  border-color: var(--ink-3);
}

.step.is-done::before {
  color: var(--ink-3);
}

.step-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.step-title {
  margin: 4px 0 8px;
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.3;
}

.step-body p,
.step-body ul {
  margin: 0 0 12px;
}

.step-body ul {
  padding-left: 20px;
}

.step-body > :last-child {
  margin-bottom: 0;
}

.step-check {
  display: inline-flex;
  flex-shrink: 0;
  align-items: center;
  gap: 8px;
  padding: 4px 10px 4px 8px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--ink-2);
  border: 1.5px solid var(--hair);
  border-radius: 999px;
  cursor: pointer;
  user-select: none;
}

.step-check input {
  width: 18px;
  height: 18px;
  margin: 0;
  accent-color: var(--green);
  cursor: pointer;
}

.step.is-done .step-check {
  color: var(--green);
  border-color: var(--green);
}

.filetable {
  width: 100%;
  margin: 0 0 12px;
  font-size: 0.95rem;
  border-collapse: collapse;
}

.filetable th,
.filetable td {
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--hair);
}

.filetable th {
  font-weight: 700;
}

.filetable td:first-child {
  white-space: nowrap;
}

.tree {
  margin: 0 0 12px;
  padding: 14px 16px;
  font-family: var(--mono);
  font-size: 0.86rem;
  line-height: 1.7;
  white-space: pre;
  overflow-x: auto;
  background: var(--panel-2);
  border: 1.5px solid var(--hair);
  border-radius: 8px;
}

.tree em {
  font-style: normal;
  color: var(--ink-2);
}

/* ---------- Code blocks ---------- */

.codeblock {
  margin: 0 0 14px;
  overflow: hidden;
  background: var(--code-bg);
  border-radius: 8px;
}

.codeblock-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 6px 8px 6px 14px;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: #b4c2d6;
  background: var(--code-head);
  border-bottom: 1px solid var(--code-line);
}

.copy-btn {
  padding: 3px 10px;
  font-family: var(--font);
  font-size: 0.8rem;
  font-weight: 600;
  color: #dce6f2;
  background: transparent;
  border: 1px solid #3a4b6b;
  border-radius: 5px;
  cursor: pointer;
}

.copy-btn:hover {
  background: #26324b;
}

.codeblock pre {
  margin: 0;
  padding: 14px 16px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 0.85rem;
  line-height: 1.65;
  color: #e6edf6;
  tab-size: 2;
}

.codeblock pre code {
  font-family: inherit;
  background: none;
}

.codeblock.is-tall pre {
  max-height: 340px;
}

/* Prism tokens */
.token.comment { color: #8292a9; font-style: italic; }
.token.keyword,
.token.module,
.token.control-flow { color: #ff8f7e; }
.token.string,
.token.template-string,
.token.attr-value { color: #93d79a; }
.token.function { color: #82b6ff; }
.token.tag,
.token.class-name,
.token.selector { color: #f7c948; }
.token.attr-name,
.token.property { color: #9cc6ff; }
.token.number,
.token.boolean,
.token.null { color: #ffb86b; }
.token.punctuation,
.token.operator { color: #a9b6c8; }
.token.tag .token.punctuation { color: #c9a63a; }
.token.interpolation-punctuation { color: #ff8f7e; }

/* ---------- Callouts ---------- */

.callout {
  margin: 20px 0 0;
  padding: 18px 22px;
  background: var(--panel);
  border: 2px solid var(--hair);
  border-left: 8px solid var(--tone, var(--blue));
  border-radius: 10px;
}

.callout-title {
  margin: 0 0 8px;
  font-size: 1.05rem;
  font-weight: 800;
  font-stretch: 112%;
}

.callout p,
.callout ul,
.callout ol {
  margin: 0 0 10px;
}

.callout ul,
.callout ol {
  padding-left: 20px;
}

.callout li + li {
  margin-top: 6px;
}

.callout > :last-child {
  margin-bottom: 0;
}

.callout-break { --tone: var(--red); }
.callout-level { --tone: var(--yellow); }
.callout-note { --tone: var(--blue); }

/* ---------- Hints, solution, quiz ---------- */

.helpers {
  display: grid;
  gap: 14px;
  margin-top: 20px;
}

.hints,
.solution,
.quiz {
  padding: 18px 22px;
  background: var(--panel);
  border: 2px solid var(--hair);
  border-radius: 10px;
}

.hint-list {
  display: grid;
  gap: 10px;
  margin: 0 0 14px;
  padding-left: 22px;
}

.hint-list:empty,
.hint-list:not(:has(li:not([hidden]))) {
  margin: 0;
}

.hint-list p {
  margin: 0 0 8px;
}

.gbtn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  background: var(--panel);
  border: 2px solid var(--ink);
  border-radius: 8px;
  box-shadow: 0 3px 0 var(--ink);
  cursor: pointer;
}

.gbtn:active:not([aria-disabled="true"]) {
  transform: translateY(2px);
  box-shadow: 0 1px 0 var(--ink);
}

.gbtn[aria-disabled="true"] {
  color: var(--ink-3);
  border-color: var(--ink-3);
  box-shadow: none;
  cursor: default;
}

.gbtn-primary {
  color: var(--paper);
  background: var(--ink);
}

.solution summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 12px;
  font-weight: 800;
  font-stretch: 112%;
  cursor: pointer;
  list-style: none;
}

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

.solution summary::before {
  content: "+";
  display: inline-grid;
  place-items: center;
  width: 22px;
  height: 22px;
  font-stretch: 100%;
  color: var(--paper);
  background: var(--ink);
  border-radius: 5px;
}

.solution[open] summary::before {
  content: "−";
}

.solution summary span {
  font-size: 0.9rem;
  font-weight: 500;
  font-stretch: 100%;
  color: var(--ink-2);
}

.solution-body {
  margin-top: 16px;
}

.solution-body > p {
  margin: 0 0 12px;
}

.helper-title {
  margin: 0 0 10px;
  font-size: 1.05rem;
  font-weight: 800;
  font-stretch: 112%;
}

.quiz-q {
  margin: 0 0 12px;
  font-weight: 600;
}

.quiz-options {
  display: grid;
  gap: 8px;
}

.quiz-opt {
  padding: 10px 14px;
  font-family: var(--font);
  font-size: 0.975rem;
  line-height: 1.4;
  color: var(--ink);
  text-align: left;
  background: var(--panel-2);
  border: 2px solid var(--hair);
  border-radius: 8px;
  cursor: pointer;
}

.quiz-opt:hover:not([aria-disabled="true"]) {
  border-color: var(--ink);
}

.quiz-opt[aria-disabled="true"] {
  cursor: default;
}

.quiz-opt.is-right {
  color: var(--ink);
  border-color: var(--green);
  box-shadow: inset 6px 0 0 var(--green);
}

.quiz-opt.is-wrong {
  color: var(--ink-3);
  text-decoration: line-through;
  border-style: dashed;
}

.quiz-feedback {
  min-height: 1.6em;
  margin: 12px 0 0;
  font-weight: 700;
}

.quiz-feedback.is-right { color: var(--green); }
.quiz-feedback.is-wrong { color: var(--red); }

.quiz-explain {
  margin: 4px 0 0;
  color: var(--ink-2);
}

/* ---------- API reference ---------- */

.endpoints {
  margin-top: 8px;
  border-bottom: 2px solid var(--hair);
}

.endpoint {
  border-top: 2px solid var(--hair);
}

.endpoint summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 2px 12px;
  padding: 14px 4px;
  cursor: pointer;
  list-style: none;
}

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

.method {
  padding: 1px 7px;
  font-size: 0.75rem;
  font-weight: 800;
  color: #fff;
  background: var(--green);
  border-radius: 4px;
}

.endpoint-path {
  font-family: var(--mono);
  font-size: 0.92rem;
  font-weight: 600;
  overflow-wrap: anywhere;
}

.endpoint-about {
  grid-column: 2;
  font-size: 0.95rem;
  color: var(--ink-2);
}

.endpoint-body {
  display: grid;
  gap: 12px;
  padding: 0 4px 22px;
}

.params {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
}

.param {
  display: grid;
  gap: 4px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink-2);
}

.param .field {
  width: 170px;
}

.endpoint-url {
  padding: 8px 12px;
  font-family: var(--mono);
  font-size: 0.85rem;
  overflow-wrap: anywhere;
  background: var(--panel-2);
  border-radius: 6px;
}

.endpoint-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.response-meta {
  display: flex;
  gap: 10px;
  font-size: 0.85rem;
  font-weight: 700;
}

.status-ok { color: var(--green); }
.status-bad { color: var(--red); }
.codeblock-head .status-ok { color: #6fd39a; }
.codeblock-head .status-bad { color: #ff8f7e; }

.response-wait {
  margin: 0;
  font-size: 0.95rem;
  color: var(--ink-2);
}

.response pre {
  max-height: 360px;
}

.response img {
  display: block;
  width: 96px;
  height: 96px;
  margin: 14px;
  border-radius: 50%;
}

.helpers-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 20px;
}

/* ---------- FAQ ---------- */

.faq {
  border-top: 2px solid var(--hair);
}

.faq:last-of-type {
  border-bottom: 2px solid var(--hair);
}

.faq summary {
  padding: 14px 4px;
  font-weight: 700;
  cursor: pointer;
}

.faq-body {
  padding: 0 4px 16px 22px;
  color: var(--ink-2);
}

.faq-body p {
  margin: 0 0 10px;
}

.ideas {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.ideas li {
  padding: 16px 18px;
  background: var(--panel);
  border: 2px solid var(--hair);
  border-radius: 10px;
}

.ideas strong {
  display: block;
  margin-bottom: 4px;
}

.ideas span {
  font-size: 0.95rem;
  color: var(--ink-2);
}

.page-foot {
  margin-top: 64px;
  font-size: 0.9rem;
  color: var(--ink-2);
}

/* ---------- Toast ---------- */

.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: calc(100vw - 32px);
  padding: 12px 18px;
  font-weight: 700;
  color: var(--ink);
  background: var(--panel);
  border: 2px solid var(--ink);
  border-radius: 10px;
  box-shadow: 5px 5px 0 var(--c, var(--ink));
  transform: translate(-50%, 160%);
  transition: transform 0.35s cubic-bezier(0.3, 1.4, 0.5, 1);
}

.toast.is-visible {
  transform: translate(-50%, 0);
}

.toast .brick {
  flex-shrink: 0;
  width: 44px;
  height: 32px;
  font-size: 0.9rem;
  cursor: default;
}

.toast .brick::before,
.toast .brick::after {
  top: -9px;
  width: 12px;
  height: 8px;
}

.toast .brick::before { left: 6px; }
.toast .brick::after { right: 6px; }

/* ---------- Small screens ---------- */

@media (max-width: 980px) {
  .layout {
    display: block;
    padding: 0 16px;
  }

  .toc {
    display: none;
  }

  .topbar {
    flex-wrap: wrap;
    gap: 8px 14px;
    padding: 10px 16px;
  }

  .api-setting {
    order: 3;
    flex-basis: 100%;
    margin-left: 0;
  }

  #api-url {
    flex: 1;
    width: auto;
  }

  .topbar .icon-btn {
    margin-left: auto;
  }
}

@media (max-width: 640px) {
  .hero {
    padding-top: 40px;
  }

  .howto,
  .ideas,
  .helpers-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .build-head {
    gap: 18px;
  }

  .build-num {
    width: 68px;
    height: 54px;
    font-size: 1.7rem;
  }

  .build-num::before,
  .build-num::after {
    width: 18px;
  }

  .step {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
    padding: 16px;
  }

  .step::before {
    text-align: left;
    font-size: 1.8rem;
  }

  .step-head {
    gap: 10px;
  }

  .brickrow {
    gap: 14px 10px;
  }

  .brick {
    width: 56px;
  }

  .api-setting label {
    display: none;
  }

  .browser-view > .app {
    padding: 14px;
  }
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}