:root {
  color-scheme: light;
  --cp-bg: #f7f4ef;
  --cp-bg-elevated: #fcfbf8;
  --cp-surface: #ffffff;
  --cp-surface-soft: #f5f5f5;
  --cp-border: #dedede;
  --cp-border-strong: #919191;
  --cp-text: #242424;
  --cp-text-muted: #5c5c5c;
  --cp-text-soft: #6f6f6f;
  --cp-accent: #b11f4b;
  --cp-accent-hover: #9a1a41;
  --cp-accent-soft: rgba(177, 31, 75, 0.08);
  --cp-accent-fg: #ffffff;
  --cp-success: #16a34a;
  --cp-danger: #dc2626;
  --cp-warning: #f59e0b;
  --cp-link: #0078d4;
  --cp-shadow: 0 18px 48px rgba(0, 0, 0, 0.12);
  --cp-overlay: rgba(255, 255, 255, 0.8);
  --cp-panel: rgba(255, 255, 255, 0.86);
  --cp-panel-strong: rgba(255, 255, 255, 0.96);
  --cp-sheen: rgba(255, 255, 255, 0.55);
  --cp-highlight: rgba(177, 31, 75, 0.12);
}
html[data-theme="dark"] {
  color-scheme: dark;
  --cp-bg: #3d3b3a;
  --cp-bg-elevated: #343231;
  --cp-surface: #292929;
  --cp-surface-soft: #2e2e2e;
  --cp-border: #474747;
  --cp-border-strong: #5f5f5f;
  --cp-text: #dedede;
  --cp-text-muted: #919191;
  --cp-text-soft: #b0b0b0;
  --cp-accent: #fd8ea1;
  --cp-accent-hover: #fb7b91;
  --cp-accent-soft: rgba(253, 142, 161, 0.14);
  --cp-accent-fg: #1a1a1a;
  --cp-success: #4ade80;
  --cp-danger: #f87171;
  --cp-warning: #fbbf24;
  --cp-link: #4da6ff;
  --cp-shadow: 0 18px 48px rgba(0, 0, 0, 0.32);
  --cp-overlay: rgba(41, 41, 41, 0.88);
  --cp-panel: rgba(41, 41, 41, 0.72);
  --cp-panel-strong: rgba(41, 41, 41, 0.96);
  --cp-sheen: rgba(255, 255, 255, 0.04);
  --cp-highlight: rgba(253, 142, 161, 0.12);
}
/* Grainger brand overrides from the supplied color guide. */
:root {
  --cp-bg: #f2f1f0;
  --cp-bg-elevated: #f2f1f0;
  --cp-text: #000106;
  --cp-text-muted: #505153;
  --cp-accent: #be0825;
  --cp-accent-hover: #790d19;
  --cp-accent-soft: #f2f1f0;
  --cp-link: #be0825;
  --cp-sidebar: #000106;
  --cp-sidebar-text: #ffffff;
  --cp-sidebar-muted: #babcBF;
  --cp-sidebar-border: #505153;
  --cp-sidebar-active: #790d19;
  --cp-card-shadow: 0 0 2px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.14);
  --cp-logo-bg: #ffffff;
}
html[data-theme="dark"] {
  --cp-sidebar: #000106;
  --cp-link: #fd8ea1;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--cp-bg); color: var(--cp-text); font-family: "Segoe UI", Aptos, Calibri, -apple-system, BlinkMacSystemFont, sans-serif; font-size: 15px; line-height: 1.6; }
button, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: var(--cp-highlight); }
a { color: var(--cp-link); }
button { cursor: pointer; }
:focus-visible { outline: 3px solid var(--cp-accent); outline-offset: 4px; }
.skip-link { position: fixed; top: -80px; left: 24px; z-index: 20; background: var(--cp-surface); padding: 12px 20px; }
.skip-link:focus { top: 12px; }
.sidebar { position: fixed; inset: 0 auto 0 0; width: 288px; background: var(--cp-sidebar); color: var(--cp-sidebar-text); padding: 28px 20px 20px; display: flex; flex-direction: column; overflow-y: auto; }
.brand { display: block; padding: 8px 12px; background: var(--cp-logo-bg); border-radius: 4px; }
.brand img { display: block; width: 100%; height: auto; }
.sidebar-title { padding: 24px 12px; border-bottom: 1px solid var(--cp-sidebar-border); }
.eyebrow { display: block; font-size: 10px; font-weight: 800; letter-spacing: .13em; line-height: 1.6; text-transform: uppercase; color: var(--cp-accent); margin: 0 0 10px; }
.sidebar-title .eyebrow { color: var(--cp-sidebar-muted); }
.sidebar-title strong { display: block; font-size: 25px; line-height: 1.2; letter-spacing: -.5px; }
.nav-label { font-size: 9px; letter-spacing: .15em; color: var(--cp-sidebar-muted); margin: 24px 12px 12px; font-weight: 700; }
#exercise-nav { display: grid; gap: 4px; }
.nav-item { display: flex; text-align: left; align-items: center; gap: 12px; background: var(--cp-sidebar); color: var(--cp-sidebar-text); border: 1px solid var(--cp-sidebar); border-radius: 8px; padding: 10px 12px; width: 100%; }
.nav-item:hover { border-color: var(--cp-sidebar-border); }
.nav-item[aria-current] { background: var(--cp-sidebar-active); border-color: var(--cp-accent); }
.nav-number { color: var(--cp-sidebar-muted); font-family: Consolas, "Courier New", Courier, monospace; font-size: 11px; width: 20px; flex-shrink: 0; }
.nav-item[aria-current] .nav-number { color: var(--cp-sidebar-text); }
.nav-item strong { display: block; font-size: 12px; font-weight: 650; }
.nav-item small { display: block; font-size: 10px; color: var(--cp-sidebar-muted); line-height: 1.5; margin-top: 2px; }
.sidebar-footer { display: flex; align-items: center; gap: 8px; border-top: 1px solid var(--cp-sidebar-border); margin: 24px 12px 0; padding-top: 16px; font-size: 10px; color: var(--cp-sidebar-muted); }
.status-dot { background: var(--cp-accent); border-radius: 50%; height: 6px; width: 6px; }
.workspace { margin-left: 288px; }
.topbar { min-height: 92px; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 20px 40px; background: var(--cp-surface); border-bottom: 1px solid var(--cp-border); }
.topbar strong { font-size: 13px; font-weight: 700; }
.topbar p { color: var(--cp-text-muted); font-size: 11px; margin: 3px 0 0; }
.header-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.button, .icon-button { display: inline-flex; justify-content: center; align-items: center; gap: 12px; border: 1px solid var(--cp-border); border-radius: 10px; padding: 11px 18px; color: var(--cp-text); background: var(--cp-surface); text-decoration: none; font-size: 12px; font-weight: 700; line-height: 1.5; }
.button:hover, .icon-button:hover { border-color: var(--cp-accent); background: var(--cp-surface-soft); }
.button.primary { background: var(--cp-accent); border-color: var(--cp-accent); color: var(--cp-accent-fg); }
.button.primary:hover { background: var(--cp-accent-hover); }
.button.small { font-size: 11px; padding: 9px 12px; }
.icon-button { padding: 7px 12px; font-size: 20px; }
.button:disabled { opacity: .4; cursor: default; }
main { padding: 28px 40px 24px; max-width: 1500px; margin: auto; }
main:focus { outline: none; }
.breadcrumb { display: flex; justify-content: space-between; gap: 16px; color: var(--cp-text-soft); font-size: 9px; font-weight: 800; letter-spacing: .12em; margin: 0 0 28px; }
.hero { display: grid; grid-template-columns: minmax(0, 1fr) 260px; align-items: center; gap: 40px; padding: 16px 0 32px; }
.hero-copy .eyebrow { font-size: 10px; }
h1 { font-size: clamp(30px, 3.1vw, 48px); line-height: 1.08; letter-spacing: -.035em; margin: 12px 0 20px; max-width: 720px; font-weight: 800; }
.hero-copy > p:last-child { color: var(--cp-text-muted); font-size: 14px; line-height: 1.8; max-width: 650px; margin: 0; }
.focus-card { background: var(--cp-surface); border: 1px solid var(--cp-border); border-top: 4px solid var(--cp-accent); border-radius: 12px; padding: 22px; }
.focus-card .eyebrow { font-size: 8px; }
.focus-card strong { font-size: 17px; line-height: 1.4; display: block; }
.focus-card p { font-size: 11px; color: var(--cp-text-muted); margin: 8px 0 16px; }
.focus-rule { height: 1px; background: var(--cp-border); margin-bottom: 12px; }
#app-label { font-size: 10px; font-weight: 650; color: var(--cp-text-muted); }
.guide-note { border-left: 3px solid var(--cp-accent); padding: 12px 16px; color: var(--cp-text-muted); font-size: 11px; margin-bottom: 24px; background: var(--cp-surface); }
#landing { display: grid; gap: 24px; }
.intro-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.intro-card { padding: 24px; border: 1px solid var(--cp-border); border-top: 3px solid var(--cp-accent); background: var(--cp-surface); border-radius: 16px; box-shadow: var(--cp-card-shadow); }
.number { display: inline-grid; place-items: center; height: 32px; width: 32px; border-radius: 8px; background: var(--cp-accent); color: var(--cp-accent-fg); font-family: Consolas, "Courier New", Courier, monospace; font-size: 11px; font-weight: 700; margin-bottom: 20px; }
.intro-card h2 { font-size: 15px; line-height: 1.4; margin: 0 0 8px; }
.intro-card p { font-size: 12px; color: var(--cp-text-muted); margin: 0; line-height: 1.8; }
.panel { padding: 32px; background: var(--cp-surface); border: 1px solid var(--cp-border); border-radius: 16px; box-shadow: var(--cp-card-shadow); }
h2 { font-size: 24px; line-height: 1.25; letter-spacing: -.025em; margin: 0 0 12px; }
.section-copy { max-width: 760px; font-size: 12px; color: var(--cp-text-muted); margin: 0; line-height: 1.8; }
.journey-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; margin-top: 28px; }
.journey-grid article { position: relative; }
.journey-dot { display: inline-grid; place-items: center; width: 36px; height: 36px; border: 2px solid var(--cp-accent); border-radius: 50%; background: var(--cp-surface); color: var(--cp-accent); font-size: 11px; font-weight: 800; margin-bottom: 16px; position: relative; z-index: 1; }
.journey-grid article:not(:last-child)::before { content: ""; position: absolute; top: 17px; left: 36px; width: calc(100% - 12px); height: 1px; background: var(--cp-border); }
h3 { font-size: 13px; line-height: 1.5; margin: 0 0 8px; }
.journey-grid p, .ingredient-grid p { font-size: 11px; line-height: 1.8; color: var(--cp-text-muted); margin: 0; }
.ingredient-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-top: 24px; }
.ingredient-grid article { background: var(--cp-surface-soft); border: 1px solid var(--cp-border); border-radius: 10px; padding: 20px 16px; }
.pill { display: inline-block; color: var(--cp-accent-fg); background: var(--cp-accent); padding: 5px 10px; border-radius: 6px; font-size: 10px; font-weight: 750; margin-bottom: 16px; }
.pill.outline { color: var(--cp-text-muted); background: var(--cp-surface); border: 1px solid var(--cp-border); margin: 0; white-space: nowrap; }
.tip { margin-top: 20px; border-left: 3px solid var(--cp-accent); background: var(--cp-surface-soft); border-radius: 0 8px 8px 0; padding: 16px; font-size: 11px; color: var(--cp-text-muted); }
.tip strong { color: var(--cp-text); }
.ready-panel { display: flex; align-items: center; gap: 32px; padding: 28px 32px; border: 1px solid var(--cp-border); border-radius: 16px; }
.ready-panel h2 { font-size: 20px; }
.ready-panel p:last-child { font-size: 11px; color: var(--cp-text-muted); margin: 0; }
.ready-panel .button { white-space: nowrap; flex-shrink: 0; }
.page-footer { display: flex; align-items: center; justify-content: space-between; gap: 16px; border-top: 1px solid var(--cp-border); padding: 24px 0; margin-top: 32px; }
#footer-position { color: var(--cp-text-soft); font-size: 11px; }
.disclaimer { font-size: 10px; color: var(--cp-text-soft); margin: 0; line-height: 1.7; }
.exercise-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin: 32px 0 20px; }
.exercise-toolbar h2 { margin: 0; }
.setup { padding: 16px 20px; border: 1px solid var(--cp-border); border-radius: 10px; background: var(--cp-surface); color: var(--cp-text-muted); font-size: 12px; margin-bottom: 20px; }
.setup::before { content: "BEFORE YOU BEGIN"; display: block; color: var(--cp-accent); font-size: 9px; letter-spacing: .1em; font-weight: 800; margin-bottom: 6px; }
#prompt-list { display: grid; gap: 20px; }
#demo-topics { margin-bottom: 24px; }
.prompt-card { border: 1px solid var(--cp-border); border-radius: 16px; background: var(--cp-surface); overflow: hidden; box-shadow: var(--cp-card-shadow); }
.prompt-header { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 20px 24px; border-bottom: 1px solid var(--cp-border); }
.prompt-header h3 { font-size: 15px; margin: 0; }
.copy-button { flex-shrink: 0; color: var(--cp-accent); }
.prompt-text { font-family: Consolas, "Courier New", Courier, monospace; font-size: 13px; line-height: 1.9; white-space: pre-wrap; overflow-wrap: anywhere; margin: 0; padding: 24px; }
.reflection { margin-top: 24px; }
.reflection h2 { font-size: 20px; }
.reflection ul { padding-left: 20px; font-size: 13px; color: var(--cp-text-muted); margin-bottom: 0; }
.reflection li { padding: 4px 0; }
#toast { position: fixed; bottom: 24px; left: calc(50% + 144px); transform: translateX(-50%); max-width: calc(100% - 48px); background: var(--cp-text); color: var(--cp-surface); border-radius: 10px; padding: 14px 20px; box-shadow: var(--cp-card-shadow); font-size: 12px; visibility: hidden; z-index: 10; }
#toast.visible { visibility: visible; }
dialog { border: 1px solid var(--cp-border); border-radius: 16px; padding: 28px; background: var(--cp-surface); color: var(--cp-text); width: min(640px, 90vw); }
dialog::backdrop { background: var(--cp-overlay); }
dialog p { font-size: 13px; color: var(--cp-text-muted); }
dialog textarea { width: 100%; min-height: 220px; background: var(--cp-surface-soft); color: var(--cp-text); border: 1px solid var(--cp-border); border-radius: 8px; padding: 16px; font-family: Consolas, "Courier New", Courier, monospace; font-size: 13px; }
dialog form { text-align: right; margin-top: 16px; }
.noscript { position: fixed; bottom: 0; left: 0; right: 0; padding: 20px; background: var(--cp-surface); color: var(--cp-text); border-top: 2px solid var(--cp-accent); z-index: 30; margin: 0; }
@media (min-width: 1600px) { main { padding-top: 40px; } .hero { padding-bottom: 40px; } }
@media (max-width: 1200px) {
  .sidebar { width: 252px; padding: 24px 16px; }
  .workspace { margin-left: 252px; }
  main { padding: 24px; }
  .topbar { padding: 20px 24px; }
  .hero { gap: 24px; grid-template-columns: minmax(0, 1fr) 220px; }
  .intro-card { padding: 20px; }
  .ingredient-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  #toast { left: calc(50% + 126px); }
}
@media (max-width: 900px) {
  .sidebar { position: static; width: auto; padding: 20px; }
  .brand { width: 190px; }
  .sidebar-title { padding: 16px 0; }
  .sidebar-title strong { font-size: 20px; }
  .sidebar-title br { display: none; }
  .nav-label { margin: 16px 0 10px; }
  #exercise-nav { display: flex; overflow-x: auto; padding: 4px 4px 12px; gap: 8px; }
  .nav-item { flex: 0 0 210px; }
  .sidebar-footer { display: none; }
  .workspace { margin-left: 0; }
  .hero { grid-template-columns: minmax(0, 1fr) 220px; }
  #toast { left: 50%; }
}
@media (max-width: 600px) {
  main { padding: 20px 16px; }
  .topbar { padding: 16px; flex-wrap: wrap; }
  .header-actions { width: 100%; justify-content: space-between; }
  .breadcrumb { font-size: 8px; margin-bottom: 16px; }
  .hero { grid-template-columns: 1fr; gap: 20px; padding-top: 8px; }
  h1 { font-size: 36px; }
  .focus-card { padding: 20px; }
  .intro-grid { grid-template-columns: 1fr; }
  .intro-card { padding: 24px; }
  .number { margin-bottom: 12px; }
  .panel { padding: 24px 20px; }
  h2 { font-size: 22px; }
  .journey-grid, .ingredient-grid { grid-template-columns: 1fr; gap: 20px; }
  .journey-grid article:not(:last-child)::before { display: none; }
  .journey-dot { margin-bottom: 8px; }
  .ingredient-grid article { padding: 20px; }
  .ready-panel { flex-direction: column; align-items: flex-start; padding: 24px 20px; gap: 20px; }
  .prompt-header { align-items: flex-start; flex-direction: column; padding: 20px; gap: 12px; }
  .prompt-text { padding: 20px; font-size: 12px; }
  .exercise-toolbar { align-items: flex-start; flex-direction: column; }
  .page-footer { flex-wrap: wrap; }
  #footer-position { order: -1; width: 100%; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }