/* Hallmark · macrostructure: Workbench · genre: atmospheric · theme: Terminal · anchor hue: phosphor green · nav: N8 · footer: Ft4 · audience: ZX players · use: play online · tone: technical-retro · contrast: pass (40–41) · slop: pass (42–45) · honest: pass (46) · chrome: pass (47) · tokens: pass (48) · responsive: pass (49) · icons: pass (30) · mobile: pass (34, 49, 50–57) */
/* Hallmark · pre-emit critique: P5 H4 E4 S5 R5 V4 */
@import url("tokens.css");

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

html,
body {
  overflow-x: clip;
}

html {
  color-scheme: dark;
}

body {
  min-inline-size: 0;
  margin: 0;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 400;
  line-height: 1.6;
  padding-block-end: max(var(--space-lg), env(safe-area-inset-bottom));
}

a {
  color: inherit;
  text-underline-offset: var(--space-2xs);
  text-decoration-thickness: var(--rule-hair);
}

a:focus-visible,
summary:focus-visible {
  outline: var(--rule-strong) solid var(--color-focus);
  outline-offset: var(--space-2xs);
}

a:active,
summary:active {
  color: var(--color-neutral);
}

a[aria-disabled="true"],
details[aria-disabled="true"] summary {
  pointer-events: none;
  cursor: not-allowed;
  color: var(--color-neutral);
  opacity: 0.55;
}

h1,
h2,
h3,
p,
dl,
dd,
ol {
  margin: 0;
}

h1,
h2,
h3 {
  min-inline-size: 0;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-style: normal;
  font-weight: 700;
  line-height: 1.12;
  overflow-wrap: anywhere;
}

h1 {
  max-inline-size: 13ch;
  font-size: var(--text-display);
  letter-spacing: -0.04em;
}

h2 {
  font-size: var(--text-xl);
  letter-spacing: -0.025em;
}

h3 {
  font-size: var(--text-md);
  letter-spacing: -0.015em;
}

.skip-link {
  position: fixed;
  inset-block-start: var(--space-sm);
  inset-inline-start: var(--space-sm);
  z-index: var(--z-sticky);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-accent);
  color: var(--color-accent-ink);
  font-weight: 700;
  transform: translateY(-200%);
}

.skip-link:focus {
  transform: none;
}

.terminal-nav {
  border-block-end: var(--rule-hair) solid var(--color-rule);
  background: var(--color-paper);
}

.terminal-nav__inner {
  max-inline-size: var(--content-max);
  margin-inline: auto;
  padding: var(--space-sm) var(--page-gutter);
}

.terminal-nav__line {
  display: none;
  min-block-size: var(--control-height);
  align-items: center;
  gap: var(--space-md);
  font-size: var(--text-sm);
  white-space: nowrap;
}

.terminal-nav__prompt,
.terminal-nav__caret {
  color: var(--color-accent);
}

.terminal-nav__line a,
.terminal-nav__mobile a {
  white-space: nowrap;
}

.terminal-nav__mobile summary {
  min-block-size: var(--control-height);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  cursor: pointer;
  font-weight: 700;
  list-style: none;
  white-space: nowrap;
}

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

.terminal-nav__mobile-links {
  display: grid;
  gap: var(--space-xs);
  padding-block: var(--space-sm) var(--space-md);
}

.terminal-nav__mobile-links a {
  min-block-size: var(--control-height);
  display: flex;
  align-items: center;
}

.terminal-nav__caret {
  display: inline-block;
  inline-size: 1ch;
  animation: terminal-caret 1.05s steps(2) infinite;
}

@keyframes terminal-caret {
  50% { opacity: 0; }
}

.page-shell,
.colophon {
  max-inline-size: var(--content-max);
  margin-inline: auto;
  padding-inline: var(--page-gutter);
}

.intro {
  display: grid;
  gap: var(--space-xl);
  padding-block: var(--space-xl) var(--space-2xl);
}

.intro__copy {
  display: grid;
  gap: var(--space-lg);
}

.intro__copy p,
.player__header p,
.keys__header p,
.support p {
  max-inline-size: var(--measure);
  color: var(--color-muted);
}

.build-facts {
  display: grid;
  align-content: end;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  font-variant-numeric: tabular-nums;
}

.build-facts div {
  display: grid;
  grid-template-columns: minmax(6rem, 0.6fr) minmax(0, 1fr);
  gap: var(--space-md);
  border-block-start: var(--rule-hair) solid var(--color-rule);
  padding-block-start: var(--space-xs);
}

.build-facts dt {
  color: var(--color-neutral);
}

.build-facts dd {
  text-align: start;
}

.player {
  display: grid;
  gap: var(--space-lg);
  padding-block: 0 var(--space-3xl);
}

.player__header,
.keys__header {
  display: grid;
  gap: var(--space-md);
}

.player__header > div,
.keys__header {
  gap: var(--space-sm);
}

.player__header > div {
  display: grid;
}

.emulator-status {
  align-self: end;
  min-block-size: var(--control-height);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  color: var(--color-neutral);
  font-size: var(--text-sm);
  font-variant-numeric: tabular-nums;
}

.emulator-status::before {
  content: "○";
  color: var(--color-neutral);
}

.emulator-status[data-state="success"] {
  color: var(--color-ink);
}

.emulator-status[data-state="success"]::before {
  content: "✓";
  color: var(--color-accent);
}

.emulator-status[data-state="error"] {
  color: var(--color-error);
}

.emulator-status[data-state="error"]::before {
  content: "×";
  color: var(--color-error);
}

.player__workbench {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-lg);
  align-items: start;
}

.emulator-stage {
  inline-size: calc(100% + var(--page-gutter) + var(--page-gutter));
  min-inline-size: 0;
  min-block-size: var(--emulator-min-height);
  display: grid;
  place-items: center;
  margin-inline: calc(0rem - var(--page-gutter));
  overflow: auto;
  padding-block: var(--space-md);
  padding-inline: 0;
  border: var(--rule-hair) solid var(--color-rule);
  border-inline: 0;
  background: var(--color-paper-2);
  color: var(--color-ink);
}

#jsspeccy {
  min-inline-size: 0;
}

#jsspeccy canvas {
  image-rendering: pixelated;
}

#jsspeccy [tabindex="0"]:focus-visible {
  outline: var(--rule-strong) solid var(--color-focus) !important;
  outline-offset: var(--space-2xs);
}

#jsspeccy button:focus-visible {
  outline: var(--rule-strong) solid var(--color-focus) !important;
  outline-offset: var(--space-3xs);
}

#jsspeccy button:active {
  outline: var(--rule-hair) solid var(--color-focus);
}

#jsspeccy button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.launch-notes {
  display: grid;
  gap: var(--space-lg);
  padding: var(--space-lg);
  background: var(--color-paper-3);
  color: var(--color-ink);
}

.launch-notes ol {
  display: grid;
  gap: var(--space-sm);
  padding-inline-start: var(--space-lg);
  color: var(--color-muted);
}

.launch-notes__actions {
  display: grid;
  gap: var(--space-xs);
}

.action-link {
  inline-size: fit-content;
  min-block-size: var(--control-height);
  display: inline-flex;
  align-items: center;
  color: var(--color-ink);
  font-weight: 700;
  white-space: nowrap;
}

.action-link:active {
  color: var(--color-neutral);
  text-decoration-thickness: var(--rule-strong);
}

.action-link[aria-disabled="true"] {
  pointer-events: none;
  cursor: not-allowed;
  color: var(--color-neutral);
  opacity: 0.55;
}

.action-link[data-state="loading"]::after {
  content: " …";
}

.action-link[data-state="error"] {
  color: var(--color-error);
}

.action-link[data-state="success"]::after {
  content: " ✓";
  color: var(--color-accent);
}

.keys {
  display: grid;
  gap: var(--space-xl);
  padding-block: 0 var(--space-3xl);
}

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

.key-row {
  display: grid;
  gap: var(--space-xs);
  padding-block: var(--space-md);
  border-block-start: var(--rule-hair) solid var(--color-rule);
}

.key-row dt {
  font-weight: 700;
}

.key-row dd {
  color: var(--color-muted);
}

kbd {
  padding: var(--space-2xs) var(--space-xs);
  border: var(--rule-hair) solid var(--color-rule);
  border-radius: var(--radius-sm);
  background: var(--color-paper-2);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 0.9em;
  white-space: nowrap;
}

.support {
  display: grid;
  gap: var(--space-xl);
  align-items: end;
  padding-block: var(--space-xl);
  border-block: var(--rule-hair) solid var(--color-rule);
}

.support > div {
  display: grid;
  gap: var(--space-sm);
}

.sponsor {
  inline-size: fit-content;
  min-block-size: var(--control-height);
  display: inline-flex;
  align-items: center;
  padding: var(--space-sm) var(--space-md);
  border: var(--rule-strong) solid var(--color-sponsor-ink);
  border-radius: var(--radius-sm);
  background: var(--color-sponsor);
  color: var(--color-sponsor-ink);
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.sponsor:focus-visible {
  outline-color: var(--color-sponsor-ink);
  box-shadow: 0 0 0 var(--space-2xs) var(--color-focus);
}

.sponsor:active {
  background: var(--color-sponsor-active);
  color: var(--color-sponsor-ink);
}

.sponsor[aria-disabled="true"] {
  pointer-events: none;
  cursor: not-allowed;
  opacity: 0.55;
}

.sponsor[data-state="loading"]::after {
  content: " …";
}

.sponsor[data-state="error"] {
  border-color: var(--color-error);
}

.sponsor[data-state="success"]::after {
  content: " ✓";
}

.sponsor__wide {
  display: none;
}

.colophon {
  padding-block: var(--space-2xl) var(--space-lg);
  color: var(--color-neutral);
  font-family: var(--font-body);
  font-size: var(--text-sm);
}

.colophon p {
  max-inline-size: var(--measure);
}

.colophon a {
  white-space: nowrap;
}

@media (hover: hover) and (pointer: fine) {
  a:hover,
  summary:hover {
    color: var(--color-accent);
  }

  #jsspeccy button:hover {
    outline: var(--rule-hair) solid var(--color-accent);
  }

  .sponsor:hover {
    background: var(--color-sponsor-hover);
    color: var(--color-sponsor-ink);
  }
}

@media (min-width: 40rem) {
  .terminal-nav__line {
    display: flex;
  }

  .terminal-nav__mobile {
    display: none;
  }

  .intro {
    grid-template-columns: minmax(0, 1.45fr) minmax(14rem, 0.55fr);
    align-items: end;
  }

  .emulator-stage {
    inline-size: auto;
    margin-inline: 0;
    padding: var(--space-md);
    border-inline: var(--rule-hair) solid var(--color-rule);
  }

  .player__header,
  .keys__header {
    grid-template-columns: minmax(0, 1fr) minmax(14rem, auto);
    align-items: end;
  }

  .key-row {
    grid-template-columns: minmax(12rem, 0.7fr) minmax(0, 1.3fr);
    gap: var(--space-lg);
  }

}

@media (min-width: 60rem) {
  .emulator-stage {
    min-block-size: 31rem;
    padding: var(--space-xl);
  }

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

  .sponsor__wide {
    display: inline;
  }

  .sponsor__narrow {
    display: none;
  }
}

@media (min-width: 70rem) {
  .player__workbench {
    grid-template-columns: minmax(0, 1fr) minmax(15rem, 0.38fr);
  }
}

@media (pointer: coarse) {
  a,
  summary {
    min-block-size: var(--control-height);
  }

  #jsspeccy button {
    min-inline-size: var(--control-height);
    min-block-size: var(--control-height);
  }

  .colophon a {
    display: inline-flex;
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .terminal-nav__caret {
    animation: none;
    opacity: 1;
  }
}