/* SPDX-License-Identifier: BSD-3-Clause */
.game-launch { grid-column: 1 / -1; min-width: 0; margin: 0; padding: 0.4rem 0.7rem; border: 1px solid currentColor; }
.game-launch[hidden] { display: none; }
.game-launch p { margin: 0.2rem 0 0; }
:root {
  color-scheme: light;
  --bg: #aeb3b7;
  --shell: #d9dcde;
  --panel: #eceeed;
  --panel-raised: #f7f8f6;
  --line: #5f666b;
  --ink: #171a1d;
  --muted: #465058;
  --accent: #075a9c;
  --accent-strong: #073e6c;
  --button-top: #1676b2;
  --button-bottom: #075a9c;
  --button-hover-top: #1676b2;
  --button-hover-bottom: #0967a8;
  --focus: #006fca;
  --danger: #9b2118;
  --warning: #765600;
  --keycap: #272b2f;
  --keycap-raised: #353a3f;
  --key-ink: #f7f8f6;
  --key-blue: #0b5b92;
  --key-blue-raised: #1475ae;
  --key-control: #e7e8e5;
  --key-control-ink: #171a1d;
  --rail-width: 340px;
  --screen-scale: 1;
  --screen-display-width: 320px;
  --screen-display-height: 224px;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-width: 320px; min-height: 100%; }
body {
  background: radial-gradient(circle at 25% 0, #eef0ef 0, var(--bg) 48rem);
  color: var(--ink);
  font: 15px/1.45 system-ui, -apple-system, sans-serif;
}
button, input, select, textarea { font: inherit; }
button, input, select, textarea {
  color: var(--ink);
  background: var(--panel-raised);
  border: 1px solid #747b80;
  border-radius: 6px;
  padding: 8px 10px;
}
textarea { display: block; width: 100%; margin-top: 4px; resize: vertical; }
button {
  cursor: pointer;
  color: white;
  background: linear-gradient(var(--button-top), var(--button-bottom));
  border-color: var(--accent-strong);
  box-shadow: 0 2px 0 var(--accent-strong);
  font-weight: 700;
}
button:hover:not(:disabled) { background: linear-gradient(var(--button-hover-top), var(--button-hover-bottom)); }
button:active:not(:disabled), button[data-pressed="true"] {
  transform: translateY(2px);
  box-shadow: inset 0 2px 3px #002c4f99;
}
button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, summary:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}
button:disabled { opacity: .52; cursor: not-allowed; box-shadow: none; border-style: dashed; }
input, select { width: 100%; margin-top: 4px; }
input[type="radio"], input[type="checkbox"] { width: auto; accent-color: var(--accent); }
a { color: var(--accent); }
[hidden] { display: none !important; }

.app-shell {
  width: min(100%, 1920px);
  min-height: 100vh;
  margin: 0 auto;
  padding: 12px 16px 8px;
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr) auto;
  gap: 8px;
}
.app-header { display: flex; align-items: end; justify-content: space-between; gap: 24px; min-height: 48px; }
.app-header h1 { margin: 0; font-size: clamp(1.45rem, 2.2vw, 2.2rem); line-height: 1; letter-spacing: -.035em; }
.eyebrow, .section-number { margin: 0 0 4px; font: 700 .66rem ui-monospace, monospace; letter-spacing: .16em; color: var(--accent); }
.lead { max-width: 560px; margin: 0; color: var(--muted); text-align: right; }
.status-strip { display: grid; grid-template-columns:minmax(0, 1fr) auto; align-items: center; gap: 16px; }
.notice { border-left: 4px solid var(--warning); background: #fff6d9; padding: 7px 11px; min-width: 0; }
.notice[data-state="running"] { border-color: #23723d; background: #e6f5e8; }
.notice[data-state="paused"] { border-color: var(--accent); background: #e5f0f8; }
.notice[data-state="error"] { border-color: var(--danger); background: #fde8e5; color: #72150f; }
#status, #machine-status { margin: 0; font-family: ui-monospace, SFMono-Regular, monospace; color: var(--muted); }
#status { white-space: nowrap; }

.workspace { min-height: 0; display: grid; grid-template-columns: minmax(0, 1fr) var(--rail-width); gap: 12px; }
.machine-stage {
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  background: linear-gradient(145deg, var(--panel-raised), var(--shell));
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px;
  display: grid;
  grid-template-rows: auto minmax(230px, 1fr) auto auto;
  gap: 8px;
}
.stage-heading { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.machine-heading-copy { min-width: 0; }
.machine-title-line { display: flex; align-items: baseline; gap: 9px; }
.machine-title-line .section-number { margin: 0; }
h2 { margin: 0; color: var(--accent); font-size: 1.1rem; letter-spacing: .04em; }
h3 { margin: 16px 0 6px; color: var(--accent-strong); font-size: .92rem; }
.controls { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0; }
.controls.compact { margin: 8px 0; }
.primary-controls { margin: 0; justify-content: flex-end; }
.primary-controls button { min-height: 36px; }
.display-area { min-height: 0; display: grid; place-items: center; overflow: auto; }
.screen-shell { background: #171a1c; border: 1px solid #4a5054; border-radius: 8px; padding: 10px; box-shadow: 0 14px 42px #30343870; }
.screen-shell:fullscreen { width: 100%; height: 100%; border: 0; border-radius: 0; padding: 20px; display: grid; place-items: center; background: #090b0c; }
#screen {
  display: block;
  width: calc(var(--screen-display-width) * var(--screen-scale));
  height: calc(var(--screen-display-height) * var(--screen-scale));
  max-width: none;
  margin: auto;
  background: #020302;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  outline: none;
}
.screen-shell:fullscreen #screen {
  width: var(--fullscreen-screen-width, var(--screen-display-width));
  height: var(--fullscreen-screen-height, var(--screen-display-height));
}
body[data-screen-smoothing="true"] #screen { image-rendering: auto; }
#screen:focus { box-shadow: 0 0 0 3px var(--focus); }
.keyboard-deck {
  height: 284px;
  min-height: 284px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #292d31;
  padding: 4px;
}
.keyboard-statusbar { height: 18px; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 0 4px; color: #f1f2f0; font: 700 .68rem/1 ui-monospace, monospace; }
.keyboard-statusbar span { overflow: hidden; color: #cbd0d3; text-overflow: ellipsis; white-space: nowrap; }
.virtual-keyboard {
  min-width: 780px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 120px;
  gap: 14px;
  align-items: start;
}
.keyboard-main { min-width: 0; display: grid; gap: 2px; }
.keyboard-row { min-width: 0; display: flex; gap: 2px; }
.keyboard-spacer { flex: var(--key-width) 1 0; min-width: 8px; }
.keyboard-control-cluster {
  display: grid;
  grid-template-columns: repeat(2, 48px);
  grid-template-rows: repeat(5, 44px);
  grid-template-areas:
    ". break"
    "insert delete"
    "up up"
    "left right"
    "down down";
  gap: 8px;
  justify-content: center;
  align-content: start;
}
.virtual-key {
  flex: var(--key-width) 1 0;
  min-width: 34px;
  height: 44px;
  min-height: 44px;
  padding: 2px;
  display: grid;
  place-items: center;
  overflow: hidden;
  touch-action: none;
  user-select: none;
}
.keyboard-control-cluster .cluster-key {
  width: 48px;
  min-width: 48px;
  justify-self: center;
  flex: none;
}
.key-text { white-space: pre-line; text-align: center; font-size: clamp(.55rem, .72vw, .72rem); line-height: 1.05; }
.key-glyph { display: block; width: 32px; height: 32px; image-rendering: pixelated; image-rendering: crisp-edges; }
.key-function { display: none; max-width: 100%; color: #f4f7f6; font: 800 .5rem/1 ui-sans-serif, sans-serif; letter-spacing: -.02em; text-align: center; white-space: pre-line; }
.virtual-key.is-function .key-glyph { display: none; }
.virtual-key.is-function .key-function { display: block; }
.stage-hint { margin: 0; }

.utility-rail { min-height: 0; overflow-y: auto; overflow-x: hidden; padding-right: 3px; scrollbar-gutter: stable; }
.tool-panel { background: var(--panel); border: 1px solid var(--line); border-radius: 9px; margin: 0 0 8px; box-shadow: 0 2px 5px #3333; }
.tool-panel summary { cursor: pointer; list-style: none; padding: 10px 12px; display: grid; grid-template-columns: auto 1fr; gap: 10px; align-items: baseline; }
.tool-panel summary::-webkit-details-marker { display: none; }
.tool-panel summary::after { content: "+"; grid-column: 3; color: var(--accent); font-weight: 800; }
.tool-panel[open] summary::after { content: "−"; }
.tool-panel summary span { color: var(--accent); font: 700 .64rem ui-monospace, monospace; letter-spacing: .08em; }
.tool-panel summary strong { font-size: .94rem; }
.tool-panel-body { border-top: 1px solid var(--line); padding: 10px 12px 14px; }
.tool-panel-body > :first-child { margin-top: 0; }
.tool-panel-body p { margin: 8px 0; }
fieldset { border: 0; padding: 0; margin: 12px 0; }
legend, label { font-weight: 650; }
label { display: block; margin: 9px 0; }
.check { font-weight: 450; }
.check input { margin-right: 7px; }
.permission { padding: 9px; border: 1px dashed var(--line); border-radius: 7px; }
.fields, .file-grid, .debug-grid { display: grid; grid-template-columns: 1fr; gap: 8px; }
.settings-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px 10px; }
.range-control { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px; align-items: center; }
.range-control label { margin: 0; }
.range-control output { min-width: 4.5rem; color: var(--accent); font-family: ui-monospace, SFMono-Regular, monospace; text-align: right; }
.inline-checks { display: flex; gap: 14px; flex-wrap: wrap; }
.inline-checks label { margin: 0; }
.audio-controls, .tape-monitor-controls { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px; align-items: center; }
.audio-controls .check, .tape-monitor-controls .check { grid-column: 1 / -1; }
.audio-controls label, .tape-monitor-controls label { margin: 0; }
.audio-controls output, .tape-monitor-controls output { color: var(--accent); font-family: ui-monospace, SFMono-Regular, monospace; }
.tape-mount-state {
  margin: 8px 0;
  padding: 9px 10px;
  border: 2px solid var(--line);
  border-radius: 7px;
  background: #f7f8f6;
  font-weight: 700;
}
.tape-mount-state[data-state="pending"] { border-color: #8a6300; background: #fff1bd; color: #4d3500; }
.tape-mount-state[data-state="mounted"] { border-color: #23723d; background: #e6f5e8; color: #154b28; }
#tape-mount.is-pending { color: #211700; background: linear-gradient(#f7d66a, #e8b43b); border-color: #765600; box-shadow: 0 2px 0 #765600; }
.memory-controls { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px; align-items: end; }
.memory-controls button { margin-bottom: 9px; }
.debug-list, .asset-status { color: var(--muted); font-family: ui-monospace, SFMono-Regular, monospace; padding-left: 1.35rem; }
.debug-list { min-height: 2rem; }
.debug-list button { padding: 2px 7px; margin-left: 8px; font-size: .78rem; }
.trace-grid pre { min-height: 12rem; max-height: 24rem; }
.hint { color: var(--muted); font-size: .86rem; }
pre { max-width: 100%; white-space: pre-wrap; overflow: auto; background: #252a2e; border-radius: 7px; padding: 10px; color: #f0f3f1; font-size: .78rem; }
.gamepad-status { min-height: 3.5rem; }

.virtual-key {
  color: var(--key-ink);
  background: linear-gradient(var(--keycap-raised), var(--keycap));
  border-color: #111416;
  box-shadow: 0 3px 0 #111416;
}
.virtual-key.key-accent { background: linear-gradient(var(--key-blue-raised), var(--key-blue)); border-color: #06395c; box-shadow: 0 3px 0 #06395c; }
.virtual-key.key-control { color: var(--key-control-ink); background: linear-gradient(#fafaf8, var(--key-control)); border-color: #7d8386; box-shadow: 0 3px 0 #7d8386; }
.virtual-key[aria-pressed="true"], .virtual-key.is-pressed {
  transform: translateY(3px);
  box-shadow: inset 0 2px 4px #0009;
  text-decoration: underline;
}
.virtual-key.is-latched { outline: 3px double #ffd24a; outline-offset: 1px; }
footer { min-height: 22px; color: var(--muted); font-size: .75rem; text-align: center; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

@media (min-width: 1100px) {
  html, body { height: 100%; overflow: hidden; }
  .app-shell {
    height: 100%;
    min-height: 0;
    padding: 6px 10px 4px;
    grid-template-columns: max-content minmax(0, 1fr);
    grid-template-rows: auto minmax(0, 1fr) auto;
    grid-template-areas:
      "header status"
      "workspace workspace"
      "footer footer";
    gap: 6px 16px;
  }
  .app-header {
    grid-area: header;
    min-height: 36px;
    align-items: center;
  }
  .app-header h1 { font-size: 1.25rem; white-space: nowrap; }
  .app-header .eyebrow { margin-bottom: 2px; font-size: .54rem; }
  .lead { display: none; }
  .status-strip { grid-area: status; gap: 10px; min-width: 0; }
  .notice {
    overflow: hidden;
    padding: 5px 9px;
    white-space: nowrap;
    text-overflow: ellipsis;
  }
  #status { font-size: .78rem; }
  .workspace { grid-area: workspace; gap: 10px; }
  footer { grid-area: footer; }
  .machine-stage {
    padding: 6px;
    grid-template-areas:
      "heading"
      "display"
      "keyboard"
      "hint";
    grid-template-rows: auto minmax(0, 1fr) auto auto;
    gap: 6px;
  }
  .stage-heading { grid-area: heading; gap: 10px; }
  .machine-title-line h2 { font-size: .98rem; white-space: nowrap; }
  #machine-status {
    max-width: 72ch;
    overflow: hidden;
    font-size: .72rem;
    line-height: 1.2;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .primary-controls { flex-wrap: nowrap; gap: 5px; }
  .primary-controls button { min-height: 32px; padding: 5px 8px; font-size: .82rem; }
  .display-area { grid-area: display; }
  .screen-shell { padding: 6px; }
  .keyboard-deck {
    grid-area: keyboard;
    width: min(100%, 620px);
    height: 154px;
    min-height: 154px;
    justify-self: center;
    padding: 3px;
  }
  .keyboard-statusbar { height: 16px; font-size: .58rem; }
  .virtual-keyboard {
    width: 600px;
    min-width: 600px;
    max-width: 100%;
    grid-template-columns: minmax(0, 1fr) 80px;
    gap: 8px;
    margin: 0 auto;
  }
  .keyboard-main { gap: 2px; }
  .virtual-key { min-width: 20px; height: 25px; min-height: 25px; padding: 1px; }
  .key-text { font-size: .5rem; line-height: 1; }
  .key-glyph { width: 19px; height: 19px; }
  .keyboard-control-cluster {
    grid-template-columns: repeat(2, 28px);
    grid-template-rows: repeat(5, 25px);
    gap: 2px 8px;
  }
  .keyboard-control-cluster .cluster-key { width: 28px; min-width: 28px; }
  .stage-hint { grid-area: hint; display: none; }
}
@media (min-width: 1100px) and (max-width: 1239px) and (min-height: 730px) {
  .keyboard-deck { width: min(100%, 560px); }
  .virtual-keyboard { width: 540px; min-width: 540px; }
}
@media (min-width: 1900px) and (min-height: 720px) {
  body[data-keyboard-visible="true"] .machine-stage {
    grid-template-columns: minmax(0, 1fr) clamp(440px, 28vw, 520px);
    grid-template-rows: auto minmax(0, 1fr);
    grid-template-areas:
      "heading heading"
      "display keyboard";
    column-gap: 8px;
  }
  body[data-keyboard-visible="true"] .keyboard-deck {
    width: 100%;
    align-self: center;
    height: 180px;
    min-height: 180px;
  }
  body[data-keyboard-visible="true"] .virtual-keyboard {
    width: 100%;
    min-width: 0;
    grid-template-columns: minmax(0, 1fr) 80px;
    gap: 7px;
  }
  body[data-keyboard-visible="true"] .virtual-key {
    min-width: 19px;
    height: 29px;
    min-height: 29px;
  }
  body[data-keyboard-visible="true"] .key-glyph { width: 22px; height: 22px; }
  body[data-keyboard-visible="true"] .keyboard-control-cluster {
    grid-template-columns: repeat(2, 34px);
    grid-template-rows: repeat(5, 29px);
    gap: 4px 7px;
  }
  body[data-keyboard-visible="true"] .keyboard-control-cluster .cluster-key {
    width: 34px;
    min-width: 34px;
  }
}
@media (min-width: 1100px) and (max-height: 750px) {
  .machine-stage { gap: 4px; }
  .primary-controls button { min-height: 28px; padding-block: 3px; }
  .screen-shell { padding: 3px; }
  .keyboard-deck { height: 144px; min-height: 144px; }
  .keyboard-statusbar { height: 14px; }
  .virtual-key { height: 23px; min-height: 23px; }
  .key-glyph { width: 17px; height: 17px; }
  .keyboard-control-cluster { grid-template-rows: repeat(5, 23px); }
}
@media (max-height: 850px) and (min-width: 1100px) {
  footer { display: none; }
}
@media (max-width: 1099px) {
  .app-shell { min-height: 100vh; padding: 10px; display: block; }
  .app-header { align-items: start; }
  .status-strip { grid-template-columns: 1fr; gap: 6px; margin: 8px 0; }
  #status { white-space: normal; }
  .workspace { display: block; }
  .machine-stage { min-height: auto; overflow: visible; grid-template-rows: auto; }
  .display-area { min-height: 260px; }
  .utility-rail { overflow: visible; margin-top: 10px; }
  footer { margin: 12px 0 4px; white-space: normal; }
}
@media (max-width: 720px) {
  .app-header { display: block; }
  .lead { margin-top: 8px; text-align: left; }
  .stage-heading { display: block; }
  .primary-controls { justify-content: stretch; }
  .primary-controls button { flex: 1 1 9rem; }
  .screen-shell { max-width: 100%; overflow: auto; }
  .memory-controls, .audio-controls, .tape-monitor-controls, .settings-grid { grid-template-columns: 1fr; }
  .memory-controls button { margin-bottom: 0; }
  .audio-controls .check, .tape-monitor-controls .check { grid-column: auto; }
}