:root {
  --case: #9b8761;
  --case-light: #c8b58a;
  --case-dark: #5e4d2e;
  --screen: #120b00;
  --screen-raised: #211500;
  --phosphor: #ffb000;
  --phosphor-soft: #ffd27a;
  --dim: #b57900;
  --cream: #ffe09a;
  --ink: #231707;
  --night: #0a0701;
  --night-soft: #211806;
  --line: #5c4317;
  --muted: #c5ad7b;
  --selected: var(--phosphor);
  --shadow: #000;
  --body-glow: color-mix(in srgb, var(--phosphor) 22%, var(--night-soft));
  --case-gradient-start: color-mix(in srgb, var(--case) 78%, white);
  --case-gradient-end: color-mix(in srgb, var(--case) 78%, black);
  --case-shadow: color-mix(in srgb, var(--case-dark) 86%, black);
  --bezel: color-mix(in srgb, var(--case-dark) 46%, var(--screen));
  --bezel-highlight: color-mix(in srgb, var(--case-light) 28%, var(--bezel));
  --bezel-shadow: color-mix(in srgb, var(--bezel) 68%, black);
  --glass-highlight: color-mix(in srgb, var(--cream) 8%, transparent);
  --glass-vignette: color-mix(in srgb, var(--shadow) 68%, transparent);
  --scan-beam: color-mix(in srgb, var(--phosphor) 9%, transparent);
  --screen-glow-soft: color-mix(in srgb, var(--phosphor) 6%, transparent);
  --screen-glow: color-mix(in srgb, var(--phosphor) 25%, transparent);
  --text-glow: color-mix(in srgb, var(--phosphor) 50%, transparent);
  --hero-lede: color-mix(in srgb, var(--cream) 68%, var(--phosphor));
  --divider: color-mix(in srgb, var(--dim) 55%, var(--screen));
  --quiet: color-mix(in srgb, var(--muted) 62%, var(--night));
  --deep-screen: color-mix(in srgb, var(--screen) 78%, black);
  --deep-shadow: color-mix(in srgb, var(--night) 72%, black);
  --case-border: color-mix(in srgb, var(--case-dark) 70%, var(--screen));
  --case-active: color-mix(in srgb, var(--case) 78%, white);
  --case-copy: color-mix(in srgb, var(--ink) 72%, var(--case));
  --panel: color-mix(in srgb, var(--night-soft) 64%, var(--night));
  --max-width: 1200px;
  --mono: "DejaVu Sans Mono", "Liberation Mono", ui-monospace, monospace;
  --serif: Georgia, "Times New Roman", serif;
}

[data-theme="future"] {
  --case: #9fa6a8;
  --case-light: #c7cccd;
  --case-dark: #586064;
  --screen: #071014;
  --screen-raised: #0b191e;
  --phosphor: #5de1f2;
  --phosphor-soft: #9adce3;
  --dim: #3d8994;
  --cream: #e4eef0;
  --ink: #11191b;
  --night: #05090b;
  --night-soft: #101b20;
  --line: #34464a;
  --muted: #a6b4b7;
  --selected: #ff7a3d;
}

[data-theme="amber"] {
  --case: #9b8761;
  --case-light: #c8b58a;
  --case-dark: #5e4d2e;
  --screen: #120b00;
  --screen-raised: #211500;
  --phosphor: #ffb000;
  --phosphor-soft: #ffd27a;
  --dim: #b57900;
  --cream: #ffe09a;
  --ink: #231707;
  --night: #0a0701;
  --night-soft: #211806;
  --line: #5c4317;
  --muted: #c5ad7b;
}

[data-theme="green_screen"] {
  --case: #74806b;
  --case-light: #a4ad94;
  --case-dark: #3f493a;
  --screen: #020b04;
  --screen-raised: #061608;
  --phosphor: #4afc72;
  --phosphor-soft: #a8eeb1;
  --dim: #3d8c4b;
  --cream: #c9f7cf;
  --ink: #0c160d;
  --night: #010602;
  --night-soft: #08170a;
  --line: #285e32;
  --muted: #7da783;
}

[data-theme="terracotta"] {
  --case: #b0aea5;
  --case-light: #e8e6dc;
  --case-dark: #6d6b67;
  --screen: #141413;
  --screen-raised: #2a2926;
  --phosphor: #d97757;
  --phosphor-soft: #e8e6dc;
  --dim: #6d6b67;
  --cream: #faf9f5;
  --ink: #141413;
  --night: #0d0d0c;
  --night-soft: #242421;
  --line: #4d4c48;
  --muted: #b0aea5;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 2rem;
}

body {
  display: flex;
  flex-direction: column;
  height: 100svh;
  min-width: 320px;
  margin: 0;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 0, var(--body-glow) 0, var(--night-soft) 36rem, var(--night) 72rem),
    var(--night);
  color: var(--cream);
  font: 17px/1.55 var(--serif);
}

a {
  color: inherit;
}

button,
code,
pre {
  font: inherit;
}

button {
  color: inherit;
}

::selection {
  background: var(--phosphor);
  color: var(--screen);
}

:focus-visible {
  outline: 3px solid var(--phosphor);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 1rem;
  left: 1rem;
  padding: 0.65rem 0.85rem;
  transform: translateY(-180%);
  background: var(--phosphor);
  color: var(--screen);
  font: 700 12px var(--mono);
}

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

.machine {
  position: relative;
  isolation: isolate;
  display: flex;
  flex: 1;
  flex-direction: column;
  width: min(1320px, calc(100% - 2rem));
  min-height: 0;
  height: auto;
  margin: 1rem auto 0;
  padding: clamp(1rem, 2.4vw, 2rem);
  border: 1px solid var(--case-light);
  border-radius: 22px 22px 8px 8px;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--case-light) 34%, transparent), transparent 2.5rem),
    radial-gradient(ellipse at 24% 0, color-mix(in srgb, white 13%, transparent), transparent 34%),
    linear-gradient(145deg, var(--case-gradient-start), var(--case) 52%, var(--case-gradient-end));
  box-shadow:
    inset 1px 1px 0 color-mix(in srgb, var(--case-light) 70%, white),
    inset -2px -2px 0 color-mix(in srgb, var(--case-dark) 55%, transparent),
    0 7px 0 var(--case-dark),
    0 22px 0 var(--case-shadow),
    0 38px 72px color-mix(in srgb, var(--shadow) 86%, transparent);
  color: var(--ink);
}

.machine-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
  font: 700 12px var(--mono);
  letter-spacing: 0.07em;
}

.machine-brand {
  font-size: 15px;
  text-decoration: none;
}

.machine-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.theme-switcher {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.theme-switcher > span {
  margin-right: 0.25rem;
  color: var(--case-copy);
  font-size: 9px;
}

.theme-track {
  --theme-index: 1;
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  min-width: 218px;
  padding: 3px;
  border: 1px solid var(--case-dark);
  border-radius: 4px;
  background: color-mix(in srgb, var(--case-dark) 64%, var(--shadow));
  box-shadow:
    inset 0 2px 5px color-mix(in srgb, var(--shadow) 48%, transparent),
    0 1px 0 color-mix(in srgb, var(--case-light) 70%, white);
}

[data-theme="future"] .theme-track { --theme-index: 0; }
[data-theme="amber"] .theme-track { --theme-index: 1; }
[data-theme="green_screen"] .theme-track { --theme-index: 2; }
[data-theme="terracotta"] .theme-track { --theme-index: 3; }

.theme-track::before {
  position: absolute;
  z-index: 0;
  top: 3px;
  bottom: 3px;
  left: 3px;
  width: calc((100% - 6px) / 4);
  border: 1px solid color-mix(in srgb, var(--case-light) 58%, var(--case));
  border-bottom: 3px solid var(--case-dark);
  border-radius: 2px;
  background: linear-gradient(180deg, var(--case-light), var(--case));
  box-shadow: 0 1px 3px color-mix(in srgb, var(--shadow) 48%, transparent);
  content: "";
  transform: translateX(calc(var(--theme-index) * 100%));
  transition: transform 180ms cubic-bezier(0.2, 0.75, 0.25, 1);
}

.theme-track button {
  position: relative;
  z-index: 1;
  min-height: 30px;
  padding: 0.35rem 0.4rem;
  border: 0;
  background: transparent;
  color: var(--case-light);
  font: 700 8px var(--mono);
  cursor: pointer;
  transition: color 140ms ease;
}

.theme-track button:hover {
  color: var(--cream);
}

.theme-track button[aria-pressed="true"] {
  color: var(--ink);
  text-shadow: 0 1px color-mix(in srgb, var(--case-light) 72%, transparent);
}

.screen {
  position: relative;
  isolation: isolate;
  contain: paint;
  flex: 1;
  height: auto;
  min-height: 0;
  padding: 0;
  overflow: hidden;
  border: clamp(13px, 1.5vw, 19px) solid var(--bezel);
  border-radius: 42px / 32px;
  outline: 2px solid var(--bezel-shadow);
  outline-offset: 3px;
  background:
    radial-gradient(ellipse at 50% 42%, var(--screen-glow-soft), transparent 64%),
    var(--screen);
  box-shadow:
    0 2px 0 var(--bezel-highlight),
    0 9px 16px color-mix(in srgb, var(--shadow) 62%, transparent),
    inset 0 0 0 2px color-mix(in srgb, var(--bezel-highlight) 42%, transparent),
    inset 0 0 34px var(--shadow),
    inset 0 0 110px color-mix(in srgb, var(--shadow) 76%, transparent),
    inset 0 0 16px var(--screen-glow);
  color: var(--phosphor);
  font-family: var(--mono);
}

.screen-deck {
  position: relative;
  z-index: 4;
  height: 100%;
  padding: clamp(1.2rem, 3vw, 3rem);
  overflow-x: hidden;
  overflow-y: hidden;
  overscroll-behavior: contain;
}

[data-screen-panel] {
  height: 100%;
  overflow-x: hidden;
  overflow-y: auto;
  scrollbar-color: var(--dim) transparent;
  scrollbar-width: thin;
}

[data-screen-panel][hidden] {
  display: none !important;
}

[data-screen-panel].is-screen-active {
  --screen-enter-y: 16px;
  animation: screen-enter 260ms cubic-bezier(0.22, 0.75, 0.24, 1) both;
}

[data-screen-panel].is-screen-active.is-screen-backward {
  --screen-enter-y: -16px;
}

.screen::before,
.screen::after {
  position: absolute;
  inset: 0;
  pointer-events: none;
  content: "";
}

.screen::before {
  z-index: 6;
  top: -22%;
  bottom: auto;
  height: 22%;
  opacity: 0.32;
  background: linear-gradient(180deg, transparent 5%, color-mix(in srgb, var(--phosphor) 2%, transparent) 28%, var(--scan-beam) 46%, color-mix(in srgb, var(--phosphor) 8%, transparent) 50%, var(--scan-beam) 54%, color-mix(in srgb, var(--phosphor) 2%, transparent) 72%, transparent 95%);
  animation: crt-scan 11s linear infinite;
  backface-visibility: hidden;
  will-change: transform;
}

.screen::after {
  z-index: 5;
  border-radius: 24px / 18px;
  opacity: 0.15;
  background:
    linear-gradient(118deg, var(--glass-highlight), transparent 20% 76%, color-mix(in srgb, var(--phosphor) 3%, transparent)),
    radial-gradient(ellipse at center, transparent 47%, var(--glass-vignette) 112%),
    repeating-linear-gradient(0deg, transparent 0 2px, color-mix(in srgb, var(--shadow) 46%, transparent) 2px 3px, color-mix(in srgb, var(--phosphor) 4%, transparent) 3px 4px),
    repeating-linear-gradient(90deg, transparent 0 2px, color-mix(in srgb, var(--phosphor) 5%, transparent) 2px 3px, transparent 3px 5px);
  box-shadow:
    inset 18px 0 34px color-mix(in srgb, var(--shadow) 30%, transparent),
    inset -18px 0 34px color-mix(in srgb, var(--shadow) 30%, transparent),
    inset 0 14px 28px color-mix(in srgb, var(--cream) 3%, transparent),
    inset 0 -20px 38px color-mix(in srgb, var(--shadow) 34%, transparent);
}

.demo-stage::after,
.install-terminal::after {
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  content: "";
  opacity: 0.22;
  background: repeating-linear-gradient(0deg, transparent 0 3px, var(--shadow) 3px 4px);
}

.session {
  position: relative;
  z-index: 4;
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(300px, 0.88fr);
  gap: clamp(2rem, 5vw, 5rem);
  min-height: 100%;
  align-items: center;
}

.screen-scroll-hint {
  position: absolute;
  right: 0;
  bottom: 0.1rem;
  left: 0;
  display: flex;
  gap: 0.55rem;
  align-items: center;
  justify-content: center;
  margin: 0;
  color: var(--dim);
  font: 700 9px var(--mono);
  letter-spacing: 0.09em;
  pointer-events: none;
}

.screen-scroll-hint i {
  color: var(--phosphor);
  font-style: normal;
  animation: scroll-hint 1.8s ease-in-out infinite;
}

.prompt-line {
  margin: 0 0 1rem;
  color: var(--dim);
  font-size: 13px;
}

.prompt-line b {
  color: var(--phosphor);
}

.ascii-logo {
  display: block;
  width: max-content;
  max-width: 100%;
  margin: 1rem 0 1.7rem;
  color: var(--phosphor);
  font: 700 clamp(4px, 0.52vw, 8px) / 1.05 var(--mono);
  text-shadow: 0 0 14px var(--text-glow);
  white-space: pre;
}

.hero-copy h1 {
  max-width: 15ch;
  margin: 0 0 1.2rem;
  color: var(--cream);
  font: 400 clamp(2rem, 4vw, 4.4rem) / 1.02 var(--serif);
  letter-spacing: -0.04em;
  text-wrap: balance;
}

.hero-lede {
  max-width: 58ch;
  margin: 0;
  color: var(--hero-lede);
  font-size: 15px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 2rem;
}

.button {
  display: inline-block;
  padding: 0.72rem 0.85rem;
  border: 1px solid var(--dim);
  background: var(--screen-raised);
  color: var(--phosphor);
  font: 700 12px var(--mono);
  text-decoration: none;
}

.button-primary {
  border-color: var(--phosphor);
  background: var(--phosphor);
  color: var(--screen);
}

.button:hover {
  transform: translateY(-2px);
}

.directory {
  align-self: center;
  padding-left: clamp(1.2rem, 3vw, 2.4rem);
  border-left: 1px dashed var(--dim);
}

.directory h2 {
  margin: 0 0 1.2rem;
  color: var(--cream);
  font: 700 13px var(--mono);
}

.directory-file {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.8rem;
  padding: 0.8rem 0;
  border-top: 1px dotted var(--divider);
  color: var(--phosphor-soft);
  text-decoration: none;
}

.directory-file:last-of-type {
  border-bottom: 1px dotted var(--divider);
}

.directory-file:hover span {
  color: var(--cream);
}

.directory-file code {
  color: var(--phosphor);
  font: 700 12px var(--mono);
}

.directory-file span {
  font-size: 13px;
}

.directory-status {
  margin: 1.5rem 0 0;
  color: var(--quiet);
  font-size: 11px;
}

.keyboard {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.55rem;
  margin-top: 1.5rem;
}

.key {
  display: flex;
  flex-direction: column;
  gap: 0.05rem;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border: 1px solid var(--case-border);
  border-bottom-width: 5px;
  border-radius: 4px;
  background: color-mix(in srgb, var(--case) 84%, var(--case-dark));
  color: var(--ink);
  font: 700 11px var(--mono);
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: transform 90ms ease, border-bottom-width 90ms ease, background-color 140ms ease, box-shadow 140ms ease;
}

.key:hover {
  background: var(--case-active);
}

.key:active,
.key.is-pressed {
  transform: translateY(4px);
  border-bottom-width: 1px;
  box-shadow: inset 0 2px 5px color-mix(in srgb, var(--shadow) 36%, transparent);
}

.key.is-selected {
  transform: translateY(3px);
  border-color: var(--case-dark);
  border-bottom-width: 2px;
  background: var(--ink);
  color: var(--case-light);
  box-shadow: inset 0 2px 6px color-mix(in srgb, var(--shadow) 58%, transparent);
}

.key.is-selected:active,
.key.is-selected.is-pressed {
  transform: translateY(4px);
  border-bottom-width: 1px;
}

footer {
  width: min(var(--max-width), calc(100% - 2rem));
  margin-inline: auto;
}

main {
  width: 100%;
  height: 100%;
  margin: 0;
}

.proof-section {
  display: grid;
  grid-template-columns: 0.66fr 1.34fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
  padding: 9rem 0 6rem;
}

.section-path,
.demo-kicker {
  margin: 0 0 1rem;
  color: var(--phosphor);
  font: 700 12px var(--mono);
  letter-spacing: 0.05em;
}

.proof-copy h2,
.section-heading h2,
.catalog-copy h2,
.install-section h2 {
  margin: 0;
  font: 400 clamp(2.6rem, 5.4vw, 5rem) / 0.98 var(--serif);
  letter-spacing: -0.04em;
  text-wrap: balance;
}

.proof-copy > p:not(.section-path),
.section-heading > div > p,
.catalog-copy > p:not(.section-path),
.install-section > div > p:not(.section-path) {
  max-width: 46ch;
  color: var(--muted);
}

.home-facts {
  display: flex;
  gap: 2rem;
  margin: 2rem 0 0;
  font-family: var(--mono);
}

.home-facts div {
  padding-top: 0.7rem;
  border-top: 1px solid var(--line);
}

.home-facts dt {
  color: var(--phosphor);
  font-size: 1.8rem;
}

.home-facts dd {
  margin: 0;
  color: var(--quiet);
  font-size: 10px;
}

.home-capture {
  position: relative;
  margin: 0;
  padding: 0.8rem;
  border: 1px solid var(--case-border);
  background: var(--deep-screen);
  box-shadow: 16px 16px 0 var(--deep-shadow);
}

.home-capture img {
  display: block;
  width: 100%;
  height: auto;
  filter: sepia(0.48) saturate(0.75);
}

.home-capture figcaption {
  padding: 0.65rem 0 0;
  color: var(--quiet);
  font: 10px var(--mono);
}

.mission-section,
.boundary-section,
.catalog-section {
  padding: 6rem 0;
  border-top: 1px solid var(--line);
}

.section-heading {
  display: grid;
  grid-template-columns: 0.38fr 1fr;
  gap: 3rem;
  align-items: start;
  margin-bottom: 3rem;
}

.section-heading h2 {
  max-width: 16ch;
}

.mission-console {
  display: grid;
  grid-template-columns: minmax(260px, 0.68fr) minmax(0, 1.32fr);
  border: 1px solid var(--case-border);
  background: var(--case);
  box-shadow: 12px 12px 0 var(--deep-shadow);
}

.mission-picker {
  padding: 1rem;
  color: var(--ink);
}

.mission-button {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.45rem;
  width: 100%;
  padding: 1.1rem;
  border: 0;
  border-bottom: 1px solid var(--case-dark);
  background: transparent;
  color: var(--ink);
  text-align: left;
  cursor: pointer;
}

.mission-button:last-child {
  border-bottom: 0;
}

.mission-button:hover,
.mission-button.is-active {
  background: var(--case-active);
}

.mission-button.is-active {
  box-shadow: inset 5px 0 0 var(--screen);
}

.mission-file {
  color: var(--case-copy);
  font: 700 10px var(--mono);
}

.mission-button strong {
  display: block;
  font: 700 13px var(--mono);
}

.mission-button small {
  display: block;
  margin-top: 0.3rem;
  color: var(--case-copy);
  font: 11px var(--mono);
}

.mission-button i {
  justify-self: end;
  padding: 0.2rem 0.4rem;
  border: 1px solid var(--case-dark);
  font: 700 9px var(--mono);
  font-style: normal;
}

.demo-stage {
  position: relative;
  min-width: 0;
  overflow: hidden;
  border: 13px solid var(--bezel);
  background: var(--screen);
  box-shadow: inset 0 0 60px var(--shadow);
  color: var(--phosphor-soft);
  font-family: var(--mono);
}

.demo-stage > * {
  position: relative;
  z-index: 4;
}

.demo-toolbar,
.install-bar {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--divider);
  color: var(--cream);
  font: 700 10px var(--mono);
}

.simulation-label {
  color: var(--phosphor);
}

.demo-context {
  display: grid;
  grid-template-columns: 1fr 0.7fr;
  gap: 2rem;
  padding: 1.5rem;
}

.demo-kicker {
  color: var(--dim);
  font-size: 10px;
}

.demo-context h3 {
  max-width: 18ch;
  margin: 0;
  color: var(--cream);
  font: 400 clamp(1.6rem, 3vw, 2.6rem) / 1.04 var(--serif);
}

.demo-outcome {
  align-self: end;
  margin: 0;
  color: var(--quiet);
  font-size: 11px;
}

.phase-rail {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 0 1.5rem;
  padding: 0;
  list-style: none;
}

.phase-rail li {
  padding: 0.6rem;
  border: 1px solid var(--divider);
  border-right: 0;
  color: var(--quiet);
  font-size: 10px;
  text-align: center;
}

.phase-rail li:last-child {
  border-right: 1px solid var(--divider);
}

.phase-rail li.is-active {
  background: var(--selected);
  color: var(--screen);
}

.phase-rail li.is-complete {
  color: var(--phosphor);
}

.terminal {
  position: relative;
  min-height: 240px;
  margin: 1.5rem;
  padding: 1rem;
  border: 1px solid var(--divider);
  background: var(--deep-screen);
  font-size: 12px;
}

.terminal-scroll {
  display: grid;
  gap: 0.45rem;
  max-height: 240px;
  overflow: auto;
  scrollbar-color: var(--dim) var(--deep-screen);
}

.terminal-line {
  display: grid;
  grid-template-columns: 5rem 1fr;
  gap: 0.75rem;
}

.line-label {
  color: var(--dim);
  font-weight: 700;
}

.tone-user .line-label,
.tone-success,
.tone-success .line-label {
  color: var(--phosphor);
}

.tone-muted {
  color: var(--quiet);
}

.tone-action {
  color: var(--cream);
}

.terminal-line.is-new {
  animation: line-arrive 180ms ease-out both;
}

.terminal-cursor {
  display: inline-block;
  width: 0.55rem;
  height: 0.95rem;
  margin-top: 0.5rem;
  background: var(--phosphor);
  animation: cursor-blink 1s steps(1) infinite;
}

.demo-controls,
.demo-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0 1.5rem 1.2rem;
  font-size: 10px;
}

.demo-controls > div:first-child {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.control-button {
  width: 34px;
  height: 30px;
  border: 1px solid var(--dim);
  background: var(--screen-raised);
  color: var(--phosphor);
  cursor: pointer;
}

.demo-progress {
  flex: 1;
  max-width: 220px;
  height: 4px;
  background: var(--divider);
}

.demo-progress i {
  display: block;
  width: 0;
  height: 100%;
  background: var(--phosphor);
}

.demo-meta {
  justify-content: flex-start;
  border-top: 1px dotted var(--divider);
  padding-top: 1rem;
  color: var(--quiet);
}

.demo-meta strong {
  margin-right: 1rem;
  color: var(--phosphor-soft);
}

.noscript-note {
  padding: 0 1.5rem;
}

.mode-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.mode {
  min-height: 255px;
  padding: 1.5rem;
  border: 1px solid var(--line);
  background: var(--panel);
}

.mode-active {
  border-color: var(--phosphor);
  box-shadow: inset 0 4px 0 var(--phosphor);
}

.mode-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
}

.mode-head strong {
  color: var(--phosphor);
  font-size: 1.25rem;
}

.mode-head i {
  color: var(--quiet);
  font-size: 9px;
  font-style: normal;
}

.mode p {
  color: var(--muted);
}

.mode code {
  display: block;
  margin-top: 2rem;
  color: var(--phosphor-soft);
  font: 11px var(--mono);
}

.trust-strip {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.75rem 2rem;
  margin-top: 1rem;
  padding: 1.5rem;
  border: 1px dashed var(--line);
  font-family: var(--mono);
}

.trust-strip strong {
  color: var(--phosphor);
  font-size: 12px;
}

.trust-strip p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}

.trust-strip ul {
  display: flex;
  grid-column: 2;
  flex-wrap: wrap;
  gap: 0.7rem 1.5rem;
  margin: 0;
  padding: 0;
  color: var(--quiet);
  font-size: 9px;
  list-style: none;
}

.catalog-section {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: clamp(3rem, 7vw, 7rem);
}

.catalog-copy h2 {
  max-width: 10ch;
}

.text-link {
  display: inline-block;
  margin-top: 1.5rem;
  color: var(--phosphor);
  font: 700 11px var(--mono);
}

.catalog-list {
  border-top: 1px solid var(--line);
}

.catalog-list > div {
  display: grid;
  grid-template-columns: 1.1fr 0.65fr 1fr;
  gap: 1rem;
  align-items: baseline;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}

.catalog-list code {
  color: var(--phosphor);
  font: 700 13px var(--mono);
}

.catalog-list span {
  color: var(--quiet);
  font: 10px var(--mono);
  text-transform: uppercase;
}

.catalog-list p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.install-section {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: 3rem;
  margin-block: 5rem;
  padding: clamp(2rem, 4vw, 3rem);
  background: var(--cream);
  color: var(--ink);
}

.screen .install-section {
  border: 0;
  background: transparent;
  color: var(--cream);
}

.screen .install-section > div > p:not(.section-path) {
  color: var(--muted);
}

.screen-deck .proof-section,
.screen-deck .mission-section,
.screen-deck .boundary-section,
.screen-deck .catalog-section,
.screen-deck .install-section {
  min-height: 0;
  margin: 0;
  padding: clamp(1rem, 3vh, 2.5rem) 0;
  border-top: 0;
}

.screen-deck .install-section {
  padding-inline: clamp(1rem, 3vw, 2.5rem);
}

.screen-deck .section-heading {
  gap: 1.5rem;
  margin-bottom: clamp(0.75rem, 2vh, 1.5rem);
}

.screen-deck .proof-copy h2,
.screen-deck .section-heading h2,
.screen-deck .catalog-copy h2,
.screen-deck .install-section h2 {
  font-size: clamp(2rem, 4.5vw, 4rem);
}

#missions {
  display: block;
}

#missions .mission-console {
  min-height: 0;
  overflow: visible;
}

#missions .mission-picker {
  display: flex;
  flex-direction: column;
  padding: 0.75rem;
}

#missions .mission-button {
  padding: 0.65rem;
  border-right: 0;
}

#missions .demo-context {
  padding: 0.85rem 1rem;
}

#missions .demo-context h3 {
  font-size: clamp(1.35rem, 2.3vw, 2rem);
}

#missions .section-heading h2 {
  font-size: clamp(2rem, 3.4vw, 3.25rem);
}

#missions .terminal {
  min-height: 84px;
  margin: 0.75rem 1rem;
  padding: 0.75rem;
}

#missions .terminal-scroll {
  max-height: none;
  overflow: visible;
}

#missions .demo-controls,
#missions .demo-meta {
  padding-inline: 1rem;
  padding-bottom: 0.75rem;
}

.install-section .section-path {
  color: var(--dim);
}

.install-section > div > p:not(.section-path) {
  color: var(--case-copy);
}

.install-platforms {
  margin-top: 2rem;
  font: 10px/1.8 var(--mono);
}

.install-terminal {
  position: relative;
  align-self: center;
  overflow: hidden;
  border: 10px solid var(--bezel);
  background: var(--screen);
  color: var(--phosphor-soft);
  box-shadow: inset 0 0 50px var(--shadow);
  font-family: var(--mono);
}

.install-terminal > * {
  position: relative;
  z-index: 4;
}

.command-box {
  display: grid;
  grid-template-columns: 1fr auto;
  margin: 1rem;
  border: 1px solid var(--divider);
}

.command-box code {
  min-width: 0;
  padding: 1rem;
  overflow-wrap: anywhere;
  color: var(--phosphor);
  font-size: 11px;
}

.command-box button {
  border: 0;
  border-left: 1px solid var(--divider);
  background: var(--phosphor);
  color: var(--screen);
  font: 700 10px var(--mono);
  cursor: pointer;
}

.copy-status {
  min-height: 1.5em;
  margin: 0 1rem;
  color: var(--phosphor);
  font-size: 10px;
}

.after-install {
  display: grid;
  grid-template-columns: auto auto 1fr;
  gap: 1rem;
  align-items: center;
  padding: 1rem;
  border-top: 1px dotted var(--divider);
  font-size: 10px;
}

.after-install span {
  color: var(--quiet);
}

.after-install code {
  color: var(--phosphor);
}

.after-install a {
  justify-self: end;
}

footer {
  position: relative;
  z-index: 2;
  display: flex;
  flex: none;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  align-items: center;
  margin-block: 0.45rem 0.55rem;
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--line);
  background: var(--night-soft);
  color: var(--muted);
  font: 9px var(--mono);
}

footer > div {
  display: flex;
  gap: 0.6rem;
}

footer strong {
  color: var(--phosphor);
}

footer p {
  margin: 0;
}

footer nav {
  display: flex;
  gap: 0.8rem;
}

footer nav a {
  color: var(--phosphor-soft);
  text-decoration: none;
}

footer small {
  white-space: nowrap;
}

@keyframes line-arrive {
  from { opacity: 0; transform: translateY(4px); }
}

@keyframes cursor-blink {
  50% { opacity: 0; }
}

@keyframes crt-scan {
  from { transform: translate3d(0, 0, 0); }
  to { transform: translate3d(0, 555%, 0); }
}

@keyframes screen-enter {
  from {
    opacity: 0.24;
    filter: brightness(1.35);
    transform: translateY(var(--screen-enter-y)) scaleY(0.985);
  }
}

@keyframes scroll-hint {
  50% {
    transform: translateY(3px);
    opacity: 0.55;
  }
}

@media (max-width: 900px) {
  .session,
  .proof-section,
  .section-heading,
  .catalog-section,
  .install-section {
    grid-template-columns: 1fr;
  }

  .screen {
    min-height: 0;
  }

  .directory {
    padding: 1.5rem 0 0;
    border-top: 1px dashed var(--dim);
    border-left: 0;
  }

  .proof-section {
    padding-top: 7rem;
  }

  .section-heading {
    gap: 1rem;
  }

  .mission-console {
    grid-template-columns: 1fr;
  }

  .mission-picker {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
  }

  .mission-button:nth-child(odd) {
    border-right: 1px solid var(--case-dark);
  }
}

@media (max-width: 620px) {
  body {
    font-size: 16px;
  }

  .machine {
    width: calc(100% - 1rem);
    height: auto;
    margin-top: 0.5rem;
    padding: 1rem;
    border-radius: 18px 18px 7px 7px;
  }

  .machine-meta {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: start;
  }

  .machine-controls {
    grid-column: 1 / -1;
    justify-content: space-between;
    width: 100%;
  }

  .machine-controls > span {
    text-align: right;
  }

  .theme-switcher {
    min-width: 0;
  }

  .theme-switcher > span {
    display: none;
  }

  .theme-switcher button {
    min-height: 44px;
  }

  .theme-track {
    min-width: min(204px, 67vw);
  }

  .machine-brand {
    max-width: 12ch;
    font-size: 13px;
    line-height: 1.2;
  }

  .screen {
    border-width: 9px;
    border-radius: 26px / 20px;
    outline-offset: 2px;
  }

  .screen-deck {
    padding: 1rem;
  }

  .screen-scroll-hint {
    bottom: 0;
    font-size: 7px;
  }

  .screen::after {
    opacity: 0.11;
  }

  .ascii-logo {
    max-width: none;
    font-size: 4px;
  }

  .hero-copy h1 {
    font-size: clamp(2.25rem, 11vw, 3.3rem);
  }

  .keyboard {
    gap: 0.35rem;
  }

  .key {
    min-width: 0;
    font-size: 9px;
  }

  main,
  footer {
    width: calc(100% - 2rem);
  }

  .proof-section,
  .mission-section,
  .boundary-section,
  .catalog-section {
    padding-block: 4.5rem;
  }

  .proof-copy h2,
  .section-heading h2,
  .catalog-copy h2,
  .install-section h2 {
    font-size: clamp(2.5rem, 13vw, 4rem);
  }

  .home-facts {
    gap: 1rem;
  }

  .mission-picker {
    grid-template-columns: 1fr;
  }

  .mission-button:nth-child(odd) {
    border-right: 0;
  }

  .demo-stage {
    border-width: 8px;
  }

  .demo-context {
    grid-template-columns: 1fr;
    gap: 1rem;
    padding: 1rem;
  }

  .phase-rail,
  .terminal {
    margin-inline: 1rem;
  }

  .terminal {
    min-height: 290px;
    font-size: 10px;
  }

  .terminal-line {
    grid-template-columns: 4rem 1fr;
  }

  .demo-controls,
  .demo-meta {
    padding-inline: 1rem;
  }

  .demo-meta {
    display: grid;
    grid-template-columns: auto 1fr;
  }

  .mode-grid {
    grid-template-columns: 1fr;
  }

  .mode {
    min-height: 0;
  }

  .trust-strip {
    grid-template-columns: 1fr;
  }

  .trust-strip ul {
    grid-column: 1;
  }

  .catalog-list > div {
    grid-template-columns: 1fr auto;
  }

  .catalog-list p {
    grid-column: 1 / -1;
  }

  .install-section {
    width: calc(100% + 2rem);
    margin-left: -1rem;
    padding: 2rem 1rem;
  }

  .command-box {
    grid-template-columns: 1fr;
  }

  .command-box button {
    min-height: 44px;
    border-top: 1px solid var(--divider);
    border-left: 0;
  }

  .after-install {
    grid-template-columns: 1fr;
  }

  .after-install a {
    justify-self: start;
  }

  footer {
    grid-template-columns: 1fr;
  }

  footer > div,
  footer nav {
    flex-wrap: wrap;
  }

  footer small {
    justify-self: start;
  }

  footer {
    width: calc(100% - 1rem);
    gap: 0.5rem;
    margin-block: 0.25rem;
    padding: 0.3rem 0.55rem;
    font-size: 8px;
  }

  footer > div span,
  footer p,
  footer small {
    display: none;
  }

  footer nav {
    gap: 0.6rem;
  }

  .screen-deck main {
    width: 100%;
  }

  .screen-deck .proof-section,
  .screen-deck .mission-section,
  .screen-deck .boundary-section,
  .screen-deck .catalog-section,
  .screen-deck .install-section {
    width: 100%;
    margin: 0;
    padding-block: 0.75rem;
  }

  .screen-deck .install-section {
    padding-inline: 0.75rem;
  }

  #install {
    gap: 0.75rem;
  }

  #install .after-install {
    grid-template-columns: auto 1fr;
    gap: 0.35rem 0.6rem;
    padding: 0.55rem;
  }

  #install .after-install a {
    grid-column: 1 / -1;
  }

  #missions .mission-picker {
    padding: 0.5rem;
  }

  #missions .mission-console {
    grid-template-rows: auto minmax(0, 1fr);
  }

  #missions .demo-stage {
    min-height: 0;
  }

  #missions .mission-button {
    min-width: 0;
    padding: 0.65rem;
    border-right: 0;
    text-align: left;
  }

  #missions .demo-context {
    padding: 0.55rem 0.7rem;
  }

  #missions .terminal {
    min-height: 78px;
    margin: 0.5rem 0.7rem;
  }

  #boundaries .mode-grid {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }

  #boundaries .mode {
    min-height: 0;
    padding: 0.6rem;
  }

  #boundaries .mode p {
    display: none;
  }

  #boundaries .section-heading {
    gap: 0.4rem;
    margin-bottom: 0.5rem;
  }

  #boundaries .section-heading h2 {
    font-size: 2rem;
  }

  #boundaries .section-heading > div > p {
    margin-block: 0.45rem;
    font-size: 14px;
  }

  #boundaries .mode-head {
    padding-bottom: 0.4rem;
  }

  #boundaries .mode code {
    margin-top: 0.35rem;
    overflow-wrap: anywhere;
    font-size: 7px;
  }

  #boundaries .trust-strip {
    margin-top: 0.35rem;
    padding: 0.55rem;
  }

  #boundaries .trust-strip p,
  #boundaries .trust-strip ul {
    display: none;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .screen::before {
    display: none;
    animation: none !important;
  }

  .screen-scroll-hint i {
    animation: none;
  }

  .screen::after {
    opacity: 0.1;
  }
}