/* Web Development demo (assets/js/demos/web.js): a small website for a fictional coffee roaster in a
   browser frame that scrolls on its own, with a screen size switch and a style switch above it.
   The site inside is someone else's design, so it has its own tokens (--demo-* in tokens.css) and sizes
   itself to the frame (container queries), like a real responsive site. Minimal is the default; Bold and
   Luxury change the variables and a few rules. */

.webdemo {
  display: grid;
  gap: var(--space-s);
}

.webdemo__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-s);
}

.webdemo__controls {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

/* Screen sizes only mean something where the frame can be wider than a tablet. */
.webdemo__devices {
  display: none;
}

.webdemo__note {
  font-family: var(--font-sans);
  font-size: var(--step--1);
  color: var(--ink-2);
}

@media (max-width: 47.99rem) {
  .webdemo__note {
    min-height: 2lh; /* the three notes differ in length; nothing below moves */
  }
}

@media (min-width: 64rem) {
  .webdemo__devices {
    display: inline-flex;
  }
}

/* One height whatever the screen size or style, so the page around the demo never moves. */
.webdemo__stage {
  display: grid;
  grid-template-rows: minmax(0, 1fr);
  justify-items: center;
  height: clamp(30rem, 72svh, 42rem);
}

/* Browser frame */

.browser {
  display: flex;
  flex-direction: column;
  width: 100%;
  overflow: hidden;
  background: var(--paper);
  border: var(--border);
  border-radius: calc(var(--radius) * 2);
  box-shadow: var(--shadow);
}

[data-device="tablet"] > .browser {
  width: min(100%, 48rem);
}

[data-device="phone"] > .browser {
  width: min(100%, 24.375rem);
}

/* The frame carries the focus ring of the page scrolling inside it. */
.browser:has(> .browser__view:focus-visible) {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

.browser__chrome {
  flex: none;
  display: flex;
  align-items: center;
  gap: 0.375rem;
  height: 2.25rem;
  padding-inline: var(--space-s);
  background: var(--paper-2);
  border-bottom: var(--border);
}

.browser__chrome i {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--line);
}

.browser__chrome span {
  margin-inline: auto;
  padding: 0.125rem 1rem;
  border-radius: 999px;
  background: var(--paper);
  font-family: var(--font-sans);
  font-size: var(--step--1);
  color: var(--ink-2);
}

.browser__view {
  flex: 1;
  min-height: 0;
  overflow: hidden auto;
  container-type: inline-size;
  scrollbar-width: thin;
}

.browser__view:focus-visible {
  outline: none;
}

/* The concept site */

.site {
  --s-bg: var(--demo-min-bg);
  --s-ink: var(--demo-min-ink);
  --s-muted: var(--demo-min-muted);
  --s-line: var(--demo-min-line);
  --s-panel: var(--demo-min-panel);
  --s-font: var(--font-sans);
  --s-display: var(--font-sans);
  --s-pad: var(--space-m);
  --s-gap: var(--space-xl);
  --focus: var(--s-ink);

  /* Illustrations: ink line drawings on paper with one warm kraft tone. */
  --ill-line: var(--s-ink);
  --ill-w: 1.25px;
  --ill-body: var(--demo-min-bg);
  --ill-label: var(--demo-min-panel);
  --ill-accent: var(--demo-min-kraft);
  --ill-bean: var(--demo-min-kraft);
  --ill-crease: var(--s-ink);
  --ill-shade: var(--demo-min-line);
  --ill-sun: var(--demo-min-bg);
  --ill-hill-1: var(--demo-min-kraft);
  --ill-hill-2: var(--demo-min-panel);
  --ill-hill-3: var(--demo-min-bg);
  --ill-leaf: var(--demo-min-bg);
  --ill-cherry: var(--s-ink);

  min-height: 100%;
  background: var(--s-bg);
  color: var(--s-ink);
  font-family: var(--s-font);
  font-size: var(--demo-text);
  line-height: 1.6;
}

.site__nav {
  position: sticky;
  top: 0;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3xs) var(--space-l);
  padding: var(--space-s) var(--s-pad);
  background: var(--s-bg);
  border-bottom: 1px solid var(--s-line);
}

.site__logo {
  font-family: var(--s-display);
  font-size: var(--demo-logo);
  font-weight: 500;
  letter-spacing: -0.02em;
}

/* Narrow screens: the links take a second row under the name and the bag. */
.site__links {
  display: flex;
  order: 1;
  width: 100%;
  gap: var(--space-m);
  font-size: var(--demo-small);
}

.site__links button {
  padding-block: var(--space-3xs);
  white-space: nowrap;
  color: var(--s-muted);
}

.site__links button:hover {
  color: var(--s-ink);
  text-decoration: underline;
  text-underline-offset: 0.35em;
}

.site__bag {
  margin-inline-start: auto;
  font-size: var(--demo-small);
  font-weight: 500;
  white-space: nowrap;
}

.site__count {
  display: inline-block;
}

.site__hero {
  display: grid;
  gap: var(--space-l);
  padding: var(--space-xl) var(--s-pad);
}

.site__intro {
  display: grid;
  justify-items: start;
  align-content: center;
  gap: var(--space-s);
}

.site__eyebrow {
  font-size: var(--demo-small);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--s-muted);
}

.site__title {
  max-width: 12ch;
  font-family: var(--s-display);
  font-size: var(--demo-display);
  font-weight: 500;
  line-height: 1.04;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.site__lead {
  max-width: 40ch;
  color: var(--s-muted);
}

.site__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-s) var(--space-l);
  margin-top: var(--space-2xs);
}

.site__btn {
  padding: 0.8125rem 1.5rem;
  background: var(--s-ink);
  border: 1px solid var(--s-ink);
  color: var(--s-bg);
  font-size: var(--demo-small);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.site__btn:hover {
  background: transparent;
  color: var(--s-ink);
}

.site__btn--small {
  padding: 0.5625rem 1.125rem;
}

.site__more {
  padding-block: var(--space-2xs);
  font-size: var(--demo-small);
  font-weight: 500;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.4em;
}

.site__more:hover {
  text-decoration-thickness: 2px;
}

.site__art--hero {
  position: relative;
  justify-self: center;
  width: min(100%, 16rem);
}

.site__section {
  padding: var(--s-gap) var(--s-pad);
  border-top: 1px solid var(--s-line);
}

.site__heading {
  margin-bottom: var(--space-l);
  font-family: var(--s-display);
  font-size: var(--demo-heading);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.site__products {
  display: grid;
  gap: var(--space-l);
}

/* Narrow screens: each coffee is a row with its bag on the left. */
.product {
  display: grid;
  grid-template-columns: 6.5rem minmax(0, 1fr);
  align-items: start;
  column-gap: var(--space-m);
}

.product .site__art {
  grid-row: span 4;
  padding: var(--space-2xs);
  background: var(--s-panel);
}

.product .site__art svg {
  width: min(100%, 10rem);
  margin-inline: auto;
}

.product__name {
  font-family: var(--s-display);
  font-weight: 500;
}

.product__notes {
  font-size: var(--demo-small);
  color: var(--s-muted);
}

.product__price {
  font-size: var(--demo-small);
}

.product .site__btn {
  justify-self: start;
  margin-top: var(--space-xs);
}

.site__farms {
  display: grid;
  gap: var(--space-l);
  align-items: center;
}

.site__art--farm {
  overflow: hidden;
  background: var(--s-panel);
}

.site__farms .site__heading {
  margin-bottom: var(--space-s);
}

.site__footer {
  display: grid;
  gap: var(--space-2xs);
  padding: var(--space-xl) var(--s-pad);
  background: var(--s-panel);
  font-size: var(--demo-small);
  color: var(--s-muted);
}

.site__footer .site__logo {
  color: var(--s-ink);
}

.site__credit {
  margin-top: var(--space-s);
}

@container (min-width: 600px) {
  .site {
    --s-pad: var(--space-xl);
    --s-gap: var(--space-2xl);
  }

  .site__links {
    order: 0;
    width: auto;
    margin-inline-start: auto;
  }

  .site__bag {
    margin-inline-start: 0;
  }

  .site__hero {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: center;
    column-gap: var(--space-xl);
  }

  .site__art--hero {
    width: min(100%, 21rem);
  }

  .site__products {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .product .site__art {
    grid-row: auto;
    margin-bottom: var(--space-s);
    padding: var(--space-m);
  }

  .site__farms {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-2xl);
  }

  .site__footer {
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: baseline;
    column-gap: var(--space-l);
  }

  .site__credit {
    margin-top: 0;
  }
}

@container (min-width: 960px) {
  .site {
    --s-pad: var(--space-3xl);
  }

  .site__hero {
    column-gap: var(--space-3xl);
  }
}

/* Illustrations (partials/roastery/*.svg): each shape has a role, each style colours the roles. Lines
   keep their width at any size. */

.site__art svg {
  position: relative;
  display: block;
  width: 100%;
  height: auto;
}

.site__art :is(path, rect, circle, ellipse) {
  vector-effect: non-scaling-stroke;
  stroke-linecap: round;
  stroke-linejoin: round;
}

:is(.i-body, .i-label, .i-accent, .i-bean, .i-sun, .i-hill1, .i-hill2, .i-hill3, .i-leaf, .i-stroke) {
  stroke: var(--ill-line);
  stroke-width: var(--ill-w);
}

.i-body { fill: var(--ill-body); }
.i-label { fill: var(--ill-label); }
.i-accent { fill: var(--ill-accent); }
.i-bean { fill: var(--ill-bean); }
.i-sun { fill: var(--ill-sun); }
.i-hill1 { fill: var(--ill-hill-1); }
.i-hill2 { fill: var(--ill-hill-2); }
.i-hill3 { fill: var(--ill-hill-3); }
.i-leaf { fill: var(--ill-leaf); }
.i-cherry { fill: var(--ill-cherry); }
.i-ink { fill: var(--ill-line); }
.i-shade { fill: var(--ill-shade); }
.i-stroke { fill: none; }
.i-thin { stroke-width: max(1px, var(--ill-w) * 0.6); }

.i-crease {
  fill: none;
  stroke: var(--ill-crease);
  stroke-width: var(--ill-w);
}

/* Bold: a heavy display face, flat bright colours, thick ink outlines and hard shadows. */

.site[data-style="bold"] {
  --s-bg: var(--demo-bold-bg);
  --s-ink: var(--demo-bold-ink);
  --s-muted: var(--demo-bold-muted);
  --s-line: var(--demo-bold-ink);
  --s-display: var(--demo-font-bold);
  --s-gap: var(--space-xl);
  --s-shadow: var(--demo-bold-coral);
  --ill-w: 2.75px;
  --ill-body: var(--demo-bold-coral);
  --ill-label: var(--demo-bold-bg);
  --ill-accent: var(--demo-bold-ink);
  --ill-bean: var(--demo-bold-bean);
  --ill-crease: var(--demo-bold-bg);
  --ill-shade: var(--demo-bold-ink);
  --ill-sun: var(--demo-bold-sun);
  --ill-hill-1: var(--demo-bold-bean);
  --ill-hill-2: var(--demo-bold-sun);
  --ill-hill-3: var(--demo-bold-leaf);
  --ill-leaf: var(--demo-bold-leaf);
  --ill-cherry: var(--demo-bold-coral);
  line-height: 1.5;
}

.site[data-style="bold"] :is(.site__logo, .site__title, .site__heading, .product__name) {
  font-weight: 400;
  letter-spacing: 0;
  text-transform: uppercase;
}

.site[data-style="bold"] .site__nav {
  --focus: var(--demo-bold-sun);
  background: var(--demo-bold-ink);
  color: var(--demo-bold-bg);
}

.site[data-style="bold"] .site__links button {
  color: var(--demo-bold-bg);
  font-family: var(--demo-font-bold);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.site[data-style="bold"] .site__links button:hover {
  color: var(--demo-bold-sun);
  text-decoration: none;
}

.site[data-style="bold"] .site__bag {
  padding: var(--space-3xs) var(--space-xs);
  background: var(--demo-bold-sun);
  border-radius: 999px;
  color: var(--demo-bold-ink);
  font-family: var(--demo-font-bold);
  font-weight: 400;
  text-transform: uppercase;
}

.site[data-style="bold"] .site__eyebrow {
  padding: var(--space-3xs) var(--space-xs);
  background: var(--demo-bold-sun);
  border: 2px solid var(--demo-bold-ink);
  border-radius: 999px;
  color: var(--demo-bold-ink);
  font-family: var(--demo-font-bold);
  letter-spacing: 0.06em;
  rotate: -3deg;
}

.site[data-style="bold"] .site__title {
  max-width: 11ch;
  font-size: var(--demo-display-heavy);
  line-height: 0.98;
}

.site[data-style="bold"] .site__btn {
  background: var(--demo-bold-ink);
  border: 2px solid var(--demo-bold-ink);
  border-radius: 999px;
  box-shadow: 4px 4px 0 var(--s-shadow);
  color: var(--demo-bold-bg);
  font-family: var(--demo-font-bold);
  font-weight: 400;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.site[data-style="bold"] .site__btn:hover {
  background: var(--demo-bold-sun);
  color: var(--demo-bold-ink);
}

.site[data-style="bold"] .site__btn:active {
  box-shadow: none;
  translate: 4px 4px;
}

.site[data-style="bold"] .site__more {
  font-family: var(--demo-font-bold);
  font-weight: 400;
  text-transform: uppercase;
  text-decoration-color: var(--demo-bold-coral);
  text-decoration-thickness: 3px;
}

/* A sun behind the hero bag. */
.site[data-style="bold"] .site__art--hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: 82%;
  aspect-ratio: 1;
  translate: -50% 0;
  background: var(--demo-bold-sun);
  border: var(--ill-w) solid var(--demo-bold-ink);
  border-radius: 50%;
}

.site[data-style="bold"] .site__section {
  border-top-width: 2px;
}

.site[data-style="bold"] .product {
  --s-muted: var(--demo-bold-ink);
  --s-shadow: var(--demo-bold-bg);
  padding: var(--space-s);
  background: var(--s-card);
  border: 2px solid var(--demo-bold-ink);
  border-radius: 1rem;
  box-shadow: 6px 6px 0 var(--demo-bold-ink);
}

.site[data-style="bold"] .product:nth-child(1) {
  --s-card: var(--demo-bold-coral);
  --ill-body: var(--demo-bold-sun);
}

.site[data-style="bold"] .product:nth-child(2) {
  --s-card: var(--demo-bold-sky);
  --ill-body: var(--demo-bold-coral);
}

.site[data-style="bold"] .product:nth-child(3) {
  --s-card: var(--demo-bold-sun);
  --ill-body: var(--demo-bold-sky);
}

/* Cards stack on narrow screens too: the heavy face needs the width. */
.site[data-style="bold"] .product {
  grid-template-columns: minmax(0, 1fr);
}

.site[data-style="bold"] .product .site__art {
  grid-row: auto;
  margin-bottom: var(--space-s);
  padding: 0;
  background: none;
}

.site[data-style="bold"] .site__art--farm {
  background: var(--demo-bold-sky);
  border: 2px solid var(--demo-bold-ink);
  border-radius: 1rem;
  box-shadow: 6px 6px 0 var(--demo-bold-ink);
}

.site[data-style="bold"] .site__footer {
  --focus: var(--demo-bold-sun);
  background: var(--demo-bold-ink);
  color: var(--demo-bold-bg);
}

.site[data-style="bold"] .site__footer .site__logo {
  color: var(--demo-bold-sun);
}

@container (min-width: 600px) {
  .site[data-style="bold"] .product {
    padding: var(--space-m);
  }
}

/* Luxury: an italic serif on espresso, fine gold line work, everything centred and unhurried. */

.site[data-style="luxury"] {
  --s-bg: var(--demo-lux-bg);
  --s-ink: var(--demo-lux-ink);
  --s-muted: var(--demo-lux-muted);
  --s-line: var(--demo-lux-line);
  --s-panel: var(--demo-lux-panel);
  --s-font: var(--demo-font-lux);
  --s-display: var(--demo-font-lux);
  --s-gap: var(--space-2xl);
  --focus: var(--demo-lux-gold);
  --ill-line: var(--demo-lux-gold);
  --ill-w: 1px;
  --ill-body: var(--demo-lux-panel);
  --ill-label: var(--demo-lux-bg);
  --ill-accent: var(--demo-lux-gold);
  --ill-bean: var(--demo-lux-gold);
  --ill-crease: var(--demo-lux-bg);
  --ill-shade: var(--demo-lux-line);
  --ill-sun: none;
  --ill-hill-1: var(--demo-lux-panel);
  --ill-hill-2: var(--demo-lux-bg);
  --ill-hill-3: var(--demo-lux-panel);
  --ill-leaf: var(--demo-lux-line);
  --ill-cherry: var(--demo-lux-gold);
  font-size: var(--demo-text-serif);
  font-weight: 500;
  font-variant-numeric: lining-nums;
  text-align: center;
}

.site[data-style="luxury"] .site__logo {
  color: var(--demo-lux-gold);
  letter-spacing: 0.32em;
  text-transform: uppercase;
}

.site[data-style="luxury"] :is(.site__links button, .site__bag, .site__eyebrow, .site__btn, .site__more) {
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.site[data-style="luxury"] .site__links {
  justify-content: center;
}

.site[data-style="luxury"] .site__links button:hover {
  color: var(--demo-lux-gold);
  text-decoration: none;
}

.site[data-style="luxury"] .site__intro {
  justify-items: center;
}

.site[data-style="luxury"] .site__title {
  max-width: 14ch;
  font-size: var(--demo-display-serif);
  font-style: italic;
  font-weight: 400;
  line-height: 1.02;
  letter-spacing: -0.01em;
}

.site[data-style="luxury"] .site__lead {
  max-width: 34ch;
  margin-inline: auto;
}

.site[data-style="luxury"] .site__actions {
  justify-content: center;
}

.site[data-style="luxury"] .site__btn {
  padding: 0.875rem 1.75rem;
  background: transparent;
  border-color: var(--demo-lux-gold);
  color: var(--demo-lux-gold);
}

.site[data-style="luxury"] .site__btn:hover {
  background: var(--demo-lux-gold);
  color: var(--demo-lux-bg);
}

.site[data-style="luxury"] .site__more {
  color: var(--demo-lux-gold);
  text-decoration: none;
}

.site[data-style="luxury"] .site__more:hover {
  text-decoration: underline;
  text-decoration-thickness: 1px;
}

/* Arched frames: the hero bag and each coffee. */
.site[data-style="luxury"] :is(.site__art--hero, .product .site__art) {
  padding: var(--space-xl) var(--space-m) var(--space-m);
  background: var(--demo-lux-panel);
  border: 1px solid var(--demo-lux-line);
  border-radius: 100vmax 100vmax 0 0;
}

.site[data-style="luxury"] .site__art--hero {
  width: min(100%, 17rem);
}

.site[data-style="luxury"] .site__heading {
  font-size: var(--demo-heading-serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: 0;
}

/* A short gold rule under each heading. */
.site[data-style="luxury"] .site__heading::after {
  content: "";
  display: block;
  width: 2.5rem;
  margin: var(--space-s) auto 0;
  border-top: 1px solid var(--demo-lux-gold);
}

.site[data-style="luxury"] .product {
  grid-template-columns: minmax(0, 1fr);
  justify-items: center;
}

.site[data-style="luxury"] .product .site__art {
  grid-row: auto;
  width: min(100%, 11rem);
  margin-bottom: var(--space-s);
}

.site[data-style="luxury"] .product .site__btn {
  justify-self: center;
}

.site[data-style="luxury"] .product__price {
  color: var(--demo-lux-gold);
  letter-spacing: 0.1em;
}

.site[data-style="luxury"] .site__art--farm {
  padding: var(--space-s);
  border: 1px solid var(--demo-lux-line);
}

.site[data-style="luxury"] .site__footer {
  justify-items: center;
  background: var(--demo-lux-bg);
  border-top: 1px solid var(--demo-lux-line);
}

@container (min-width: 600px) {
  .site[data-style="luxury"] {
    --s-gap: var(--space-3xl);
  }


  .site[data-style="luxury"] .site__hero {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1fr);
  }

  .site[data-style="luxury"] .site__art--hero {
    order: -1;
    width: min(100%, 22rem);
  }

  .site[data-style="luxury"] .site__footer {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* Wide: links left, name in the middle, bag right. */
@container (min-width: 960px) {
  .site[data-style="luxury"] .site__nav {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  }

  .site[data-style="luxury"] .site__logo {
    grid-area: 1 / 2;
  }

  .site[data-style="luxury"] .site__links {
    grid-area: 1 / 1;
    justify-content: start;
    margin: 0;
  }

  .site[data-style="luxury"] .site__bag {
    grid-area: 1 / 3;
    justify-self: end;
  }
}

/* Style and screen size changes are a same-page View Transition of the frame only (web.js). The page
   itself is not captured, so it never fades. A new size crops the two pictures instead of stretching
   them while the frame morphs. */

.vt-demo,
.vt-demo .site-header {
  view-transition-name: none;
}

/* The page stays usable underneath: a quick second choice is not lost. */
.vt-demo::view-transition {
  background: none;
  pointer-events: none;
}

.vt-demo::view-transition-group(demo-frame),
.vt-demo::view-transition-old(demo-frame),
.vt-demo::view-transition-new(demo-frame) {
  animation-duration: var(--dur-fast);
  animation-timing-function: var(--ease-out);
}

.vt-demo-resize::view-transition-group(demo-frame) {
  overflow: clip;
  border-radius: calc(var(--radius) * 2);
}

.vt-demo-resize::view-transition-old(demo-frame),
.vt-demo-resize::view-transition-new(demo-frame) {
  height: 100%;
  object-fit: none;
  object-position: 50% 0;
}