/* Homepage layout. Tokens, buttons, keycaps and the terminal panel come from style.css. */

.hero-in, .home-how, .home-learn, .home-foot-in {
  width: min(100%, 76rem); margin-inline: auto;
  padding-inline: var(--gutter) var(--gutter-end);
}
.home { flex: 1; }

/* Hero: the sign, the pitch and a live machine, on the factory's own brick wall and floor line. */

.hero {
  position: relative;
  padding-block: max(20px, env(safe-area-inset-top)) 44px;
  background:
    radial-gradient(ellipse 60% 70% at 70% 45%, #FFF9EE, transparent 70%),
    repeating-linear-gradient(to bottom, transparent 0 23px, rgb(230 211 179 / 0.5) 23px 24px),
    var(--cream-100);
  border-bottom: 14px solid var(--stone-500);
  box-shadow: inset 0 -4px 0 var(--rust-700);
}
.hero::after {
  content: ""; position: absolute; inset-inline: 0; bottom: -14px; height: 3px; background: var(--brass-400);
}
.hero-in { display: grid; gap: 28px; }
.hero-copy { display: flex; flex-direction: column; align-items: flex-start; }
.hero-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 24px; min-width: 0; }
.hero-head .bmc { margin-inline-start: auto; }
.hero-logo { display: block; flex: 1 1 24rem; min-width: 0; max-width: 48rem; height: auto; margin-inline: -1%; }
.home h1 {
  max-width: 18ch;
  font-size: clamp(2rem, 1.3rem + 2.8vw, 3.375rem); font-weight: 800;
  line-height: 1.06; letter-spacing: -0.02em; text-wrap: balance;
}
.home-lede {
  max-width: 38ch; margin-top: 18px;
  color: var(--color-text-secondary); font-size: 1.1875rem; line-height: 1.5; text-wrap: pretty;
}
.hero-act { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 20px; margin-top: 28px; }
.home-cta {
  display: inline-grid; place-items: center; min-height: 56px; padding-inline: 32px;
  font-size: 1.1875rem; text-decoration: none;
}
.home-progress { display: flex; flex-direction: column; gap: 2px; font-variant-numeric: tabular-nums; }
.home-progress span:first-child { font-weight: 700; }
.home-progress span + span { color: var(--color-text-secondary); }

/* The live machine sits in a charcoal housing like the game's terminal, with its controls below. */

.factory {
  --view-h: 210;
  margin: 0; min-width: 0; overflow: hidden;
  border: 3px solid var(--charcoal-800); border-radius: 22px; background: var(--charcoal-800);
  box-shadow: 0 6px 0 var(--charcoal-900), 0 24px 40px -24px rgb(36 31 29 / 0.6);
}
.factory-view {
  position: relative; height: calc(var(--view-h) * 1px);
  border-radius: 19px 19px 0 0; overflow: hidden; background: var(--cream-100);
}
.factory-live, .factory-frozen, .factory-still { position: absolute; inset: 0; width: 100%; height: 100%; }
/* world.mjs reads --arm-cell as the machine cell's height; it matches the view so the wall fills it. */
.factory-live { --arm-cell: var(--view-h); }
.factory-live canvas { position: absolute; inset: 0; display: block; }
.factory-still { object-fit: cover; object-position: 50% 55%; }

.factory-panel {
  display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 10px 12px;
  padding: 12px; color: var(--cream-100);
}
.factory-panel :focus-visible { outline-color: var(--cyan-300); }
.factory-pick { grid-column: 1 / -1; display: flex; gap: 8px; min-width: 0; }
.factory-machine {
  flex: 1 1 0; min-width: 0; min-height: 52px; padding: 6px 10px;
  display: flex; flex-direction: column; align-items: flex-start; justify-content: center; gap: 1px;
  border: 2px solid var(--charcoal-900); border-radius: var(--radius-key);
  background: var(--charcoal-700); color: var(--cream-100); box-shadow: 0 3px 0 var(--charcoal-900);
  text-align: start;
}
.factory-machine-name { font-weight: 800; line-height: 1.15; overflow-wrap: anywhere; }
.factory-machine-lesson { color: var(--cream-200); font-size: var(--text-caption); font-variant-numeric: tabular-nums; }
.factory-machine[aria-pressed="true"] { background: var(--brass-400); color: var(--charcoal-900); }
.factory-machine[aria-pressed="true"] .factory-machine-lesson { color: var(--charcoal-800); }
.factory-machine:active { translate: 0 2px; box-shadow: 0 1px 0 var(--charcoal-900); }
.factory-pause {
  grid-row: 2; grid-column: 2; display: inline-flex; align-items: center; gap: 6px; min-width: 44px; min-height: 44px; padding: 0 12px;
  border: 2px solid var(--charcoal-700); border-radius: var(--radius-key); background: none; color: var(--cream-100);
  font-weight: 700;
}
.factory-pause svg { width: 18px; height: 18px; flex: none; }
.factory-pause .i-play, .factory-pause[aria-pressed="true"] .i-pause { display: none; }
.factory-pause[aria-pressed="true"] .i-play { display: inline; fill: currentColor; }
.factory-says { grid-row: 2; grid-column: 1; color: var(--cream-200); font-size: 0.9375rem; text-wrap: pretty; }

@media (hover: hover) {
  .factory-machine:not([aria-pressed="true"]):hover { background: var(--charcoal-800); }
  .factory-pause:hover { border-color: var(--cream-200); }
}

/* Sections below the hero. */

.home-how, .home-learn { padding-block: 56px 8px; }
.home-learn { padding-bottom: 64px; }
.home h2 { font-size: clamp(1.625rem, 1.3rem + 1vw, 2.125rem); font-weight: 800; line-height: 1.15; letter-spacing: -0.01em; }
.home h3 { margin: 0; font-size: 1.25rem; font-weight: 800; line-height: 1.2; }
.home kbd {
  display: inline-block; min-width: 1.9em; padding: 0 6px; border-radius: 6px;
  border: 2px solid var(--cream-200); background: var(--cream-50); box-shadow: 0 2px 0 var(--cream-200);
  font: 700 0.9375rem/1.6 var(--font-key); text-align: center;
}

.home-how-grid { display: grid; gap: 20px; margin-top: 20px; }
.home-card {
  min-width: 0; padding: 22px;
  border: 2px solid var(--cream-200); border-radius: var(--radius-panel); background: var(--cream-100);
}
.home-card > p { margin-top: 6px; color: var(--color-text-secondary); line-height: 1.6; }
.home-floor .home-keyrow { padding-top: 10px; }
.home-floor img { display: block; width: 100%; height: auto; margin-top: 14px; border-radius: 12px; }

/* Repair demo: the game's terminal at a larger size, focusable as one panel. */

.home-term {
  --size: clamp(1.125rem, 5vw, 1.5rem);
  --row: calc(1.9 * var(--size));
  margin-top: 18px;
}
.home-term .term-screen { font-size: var(--size); padding-block: 10px; }
.home-term .term-head { flex-wrap: wrap; min-height: 40px; padding: 6px 8px 6px 14px; }
.home-term:focus-visible { outline-offset: 3px; }
.home-machine {
  display: inline-flex; align-items: center; gap: 4px; min-height: 26px; margin-inline-start: auto;
  padding: 0 8px; border-radius: 7px; font-size: var(--text-caption); font-weight: 700;
}
.home-machine.plate { min-width: 0; height: auto; }
.home-machine svg { width: 16px; height: 16px; stroke-width: 3; }

.home-status { min-height: 1.4em; margin-top: 12px; font-weight: 700; }

.home-steps { display: grid; gap: 14px; margin: 14px 0 0; padding: 0; list-style: none; counter-reset: step; }
.home-steps li {
  display: grid; grid-template-columns: 1.25ch 44px minmax(0, 1fr); align-items: center; gap: 6px 12px;
}
.home-steps li::before {
  counter-increment: step; content: counter(step); grid-row: span 2;
  color: var(--color-text-secondary); font-weight: 800; font-variant-numeric: tabular-nums;
}
.home-step-key {
  grid-row: span 2; display: grid; place-items: center; height: 44px;
  border: 2px solid var(--color-border); border-radius: var(--radius-key);
  background: var(--color-bg-panel); box-shadow: 0 3px 0 var(--charcoal-700);
  font: 700 1.25rem/1 var(--font-key);
}
.home-preview {
  justify-self: start; padding: 1px 10px; border-radius: 8px;
  background: var(--color-screen-bg); color: var(--color-screen-text);
  font: 500 0.9375rem/1.7 var(--font-key); white-space: pre;
}
.home-preview .is-cursor { border-radius: 2px; background: var(--cyan-300); color: var(--charcoal-900); }

.home-controls { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 22px; }
.home-keys { display: flex; gap: 10px; }
.home-keys .keycap { width: 64px; }
.home-again { margin-inline-start: auto; }

/* Chapters: one card each, in course order. */

.home-chapters {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 15.5rem), 1fr)); gap: 16px;
  margin: 20px 0 0; padding: 0; list-style: none; counter-reset: chapter;
}
.home-chapters li {
  position: relative; display: flex; flex-direction: column; gap: 6px; padding: 18px 20px 20px;
  border: 2px solid var(--cream-200); border-top: 6px solid var(--orange-500); border-radius: 14px;
  background: var(--cream-100);
}
.home-chapters li::before {
  counter-increment: chapter; content: counter(chapter);
  position: absolute; top: 12px; inset-inline-end: 16px;
  color: var(--orange-700); font: 800 1.5rem/1 var(--font-key);
}
.home-chapters h3 { padding-inline-end: 2.5rem; }
.home-lessons { color: var(--color-text-secondary); font-size: var(--text-caption); font-weight: 700; font-variant-numeric: tabular-nums; }
.home-lessons:empty { display: none; }
.home-chapters p:not([class]) { line-height: 1.5; text-wrap: pretty; }
.home-keyrow { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; padding-top: 8px; }
.home-cta-end { margin-top: 32px; }

/* Footer: the factory floor, with an optional way to support the project. */

.home-foot {
  background: var(--charcoal-800); color: var(--cream-100);
  border-top: 4px solid var(--brass-400);
}
.home-foot-in {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px 32px;
  padding-block: 28px max(28px, env(safe-area-inset-bottom));
}
.home-foot :focus-visible { outline-color: var(--cyan-300); outline-offset: 3px; }
.home-support { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 16px; color: var(--cream-200); }
.bmc { display: block; border-radius: 10px; }
.bmc img { display: block; height: 48px; width: auto; }

@media (min-width: 40rem) {
  .factory { --view-h: 300; }
  .home-card { padding: 26px; }
}

@media (min-width: 60rem) {
  .hero { padding-block: 32px 64px; }
  .hero-in {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); align-items: center; gap: 24px 56px;
  }
  .hero-head { grid-column: 1 / -1; }
  .factory { --view-h: 310; }
  .home-how-grid { grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); align-items: start; }
  .home-how, .home-learn { padding-top: 72px; }
}

@media (min-width: 72rem) {
  .home-chapters { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (max-width: 29.99rem) {
  .hero-act, .home-cta { align-self: stretch; }
  .hero-act { flex-direction: column; align-items: stretch; }
  .factory-panel { padding: 10px; }
  .factory-machine { padding-inline: 8px; }
  .factory-machine-name { font-size: 0.875rem; }
  .home-card { padding: 18px; }
  .home-controls { gap: 10px; }
  .home-keys { flex: 1; }
  .home-keys .keycap { flex: 1; width: auto; }
  .home-again { flex: 1 0 100%; margin-inline-start: 0; }
  .home-cta-end { display: grid; }
}

@media (prefers-reduced-motion: no-preference) {
  .factory-machine, .factory-pause { transition: background-color 0.15s, border-color 0.15s, translate 0.08s; }
}

@media (forced-colors: active) {
  .home-preview .is-cursor { forced-color-adjust: none; background: Highlight; color: HighlightText; }
  .home-machine.plate { outline: 2px solid CanvasText; }
  .factory-machine[aria-pressed="true"] { outline: 3px solid Highlight; outline-offset: -5px; }
  .home-chapters li { border-top-color: CanvasText; }
}