:root {
  --ink: #e8e8e8;
  --dim: #9a9aa6;
  --glass: rgba(10, 10, 16, 0.62);
  --glass-edge: rgba(255, 255, 255, 0.14);
  --accent: #ffd400;
  --red: #ff2a2a; --yel: #ffd400; --grn: #19e03a; --cyn: #19e0e0;
  --mono: "JetBrains Mono", Menlo, Consolas, monospace;
  --pix: "VT323", "JetBrains Mono", monospace;
  --toolbar-height: 48px;
}
* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  background: #000;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 13px;
  overflow: hidden;
}

/* The Flash movie always sits full-bleed at the back */
#stage { position: fixed; inset: var(--toolbar-height) 0 0; background: #000; }
#player-host, #player-host ruffle-player { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }

/* Frosted glass between the movie and the code */
#frost {
  position: fixed; inset: 0; pointer-events: none;
  backdrop-filter: blur(14px) saturate(140%) brightness(0.55);
  -webkit-backdrop-filter: blur(14px) saturate(140%) brightness(0.55);
  background: radial-gradient(ellipse at 30% 20%, rgba(255,255,255,0.05), transparent 60%);
  transition: opacity .35s ease;
}
body[data-tab="screen"] #frost { opacity: 0; }

/* Top bar */
#top {
  position: fixed; top: 0; left: 0; right: 0; height: var(--toolbar-height); z-index: 10;
  display: flex; align-items: center; gap: 18px; padding: 0 16px;
  background: linear-gradient(to bottom, rgba(0,0,0,0.85), rgba(0,0,0,0.55));
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--glass-edge);
}
.brand { display: flex; align-items: center; gap: 10px; white-space: nowrap; }
.brand .stripe {
  width: 34px; height: 26px; display: inline-block;
  background: linear-gradient(135deg, transparent 0 18%, var(--red) 18% 38%, var(--yel) 38% 58%, var(--grn) 58% 78%, var(--cyn) 78% 98%, transparent 98%);
}
.brand .name { font-family: var(--pix); font-size: 28px; letter-spacing: 1px; line-height: 1; }
.brand .name b { color: var(--accent); font-weight: 400; }
.brand .sub { color: var(--dim); font-size: 11px; }
.tabs { display: flex; gap: 2px; margin-left: auto; }
.tab {
  font-family: var(--pix); font-size: 20px; letter-spacing: 1px; color: var(--dim);
  background: transparent; border: 1px solid transparent; padding: 4px 14px; cursor: pointer;
}
.tab:hover { color: var(--ink); }
.tab.active { color: #000; background: var(--accent); border-color: var(--accent); }
.tools { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.tools button, .tools select {
  font-family: var(--pix); font-size: 18px; color: var(--ink); background: rgba(255,255,255,0.08);
  border: 1px solid var(--glass-edge); padding: 3px 10px; cursor: pointer;
}
.tools button:hover { background: rgba(255,255,255,0.18); }
.tools #run { background: var(--grn); color: #000; border-color: var(--grn); }
.tools .sel, .tools .chk { display: flex; align-items: center; gap: 6px; font-family: var(--pix); font-size: 18px; color: var(--dim); }
.tools select { max-width: 180px; }

/* Panels */
.panel {
  position: fixed; top: calc(var(--toolbar-height) + 16px); left: 50%; transform: translateX(-50%);
  width: min(880px, calc(100vw - 32px)); height: calc(100vh - var(--toolbar-height) - 32px);
  display: flex; flex-direction: column;
  background: var(--glass);
  border: 1px solid var(--glass-edge);
  box-shadow: 0 30px 80px rgba(0,0,0,0.6), inset 0 1px 0 rgba(255,255,255,0.08);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  transition: opacity .25s ease, transform .25s ease;
}
.panel-head {
  display: flex; align-items: baseline; gap: 14px; padding: 8px 14px;
  border-bottom: 1px solid var(--glass-edge); font-family: var(--pix); font-size: 18px;
}
.panel-head .lbl { color: var(--accent); }
.panel-head .progname { color: var(--ink); }
.panel-head .meta { color: var(--dim); font-size: 15px; margin-left: auto; max-width: 45%; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
body:not([data-tab="code"]) #code-panel { opacity: 0; pointer-events: none; transform: translateX(-50%) translateY(10px); }
body:not([data-tab="manual"]) #manual-panel { opacity: 0; pointer-events: none; transform: translateX(-50%) translateY(10px); }

#screen-hint {
  position: fixed; bottom: 14px; left: 50%; transform: translateX(-50%);
  font-family: var(--pix); font-size: 18px; color: var(--dim); background: rgba(0,0,0,0.55); padding: 4px 12px;
  border: 1px solid var(--glass-edge); opacity: 0; pointer-events: none; transition: opacity .3s;
}
body[data-tab="screen"] #screen-hint { opacity: 1; }
kbd { font-family: inherit; border: 1px solid var(--dim); padding: 0 4px; }

/* Editor */
.CodeMirror {
  flex: 1; height: auto; font-family: var(--mono); font-size: 14px; line-height: 1.5;
  background: transparent; color: var(--ink);
}
.CodeMirror-gutters { background: rgba(0,0,0,0.25); border-right: 1px solid var(--glass-edge); }
.CodeMirror-linenumber { color: #555; }
.CodeMirror-cursor { border-left: 8px solid var(--accent); opacity: .8; }
.CodeMirror-selected { background: rgba(255,212,0,0.18) !important; }
.CodeMirror-focused .CodeMirror-selected { background: rgba(255,212,0,0.25) !important; }
.cm-s-default .cm-lineno { color: #8a8a8a; }
.cm-s-default .cm-keyword { color: #ffd400; font-weight: 700; }
.cm-s-default .cm-builtin { color: #19e0e0; }
.cm-s-default .cm-string { color: #19e03a; }
.cm-s-default .cm-number { color: #ff9c3a; }
.cm-s-default .cm-comment { color: #8a8a9a; font-style: italic; }
.cm-s-default .cm-operator { color: #ff5fd2; }
.cm-s-default .cm-variable { color: #e8e8e8; }
.cm-s-default .cm-error { color: #fff; background: rgba(255,42,42,0.5); }
.line-error { background: rgba(255,42,42,0.22); }
.gutter-error { color: var(--red); }

.status {
  font-family: var(--pix); font-size: 19px; padding: 6px 14px; border-top: 1px solid var(--glass-edge);
  display: flex; gap: 14px; align-items: baseline;
}
.status.ok { color: var(--grn); }
.status.err { color: #fff; background: rgba(215,0,0,0.6); }
.status .detail { color: var(--dim); font-size: 15px; margin-left: auto; }

/* Manual */
.manual-body { overflow: auto; padding: 10px 22px 30px; line-height: 1.55; }
.manual-body h2 { font-family: var(--pix); font-size: 24px; color: var(--accent); margin: 18px 0 6px; font-weight: 400; }
.manual-body code { color: var(--cyn); }
.manual-body a { color: var(--accent); }
.manual-body table { border-collapse: collapse; width: 100%; }
.manual-body td { vertical-align: top; padding: 4px 10px 4px 0; border-bottom: 1px solid rgba(255,255,255,0.07); }
.manual-body td:first-child { white-space: nowrap; }

@media (max-width: 1200px) {
  .brand .sub { display: none; }
}

@media (max-width: 1050px) {
  :root { --toolbar-height: 96px; }
  .brand .sub, .tools .chk { display: none; }
  #top {
    display: grid; grid-template-columns: auto 1fr; grid-template-rows: 40px 40px;
    gap: 4px 8px; padding: 6px 8px;
  }
  .tabs { justify-self: end; margin-left: 0; }
  .tab { min-height: 36px; padding: 4px 10px; }
  .tools { grid-column: 1 / -1; min-width: 0; margin-left: 0; gap: 8px; }
  .tools .sel { flex: 1; min-width: 0; }
  .tools select { flex: 1; width: 100%; min-width: 0; max-width: none; }
  .tools button, .tools select { min-height: 36px; }
  .tools button { white-space: nowrap; }
  .panel { top: calc(var(--toolbar-height) + 8px); height: calc(100vh - var(--toolbar-height) - 16px); }
  #screen-hint { width: max-content; max-width: calc(100vw - 16px); text-align: center; font-size: 16px; }
}

@media (max-width: 560px) {
  :root { --toolbar-height: 140px; }
  #top { grid-template-rows: 40px 84px; }
  .brand .stripe { display: none; }
  .brand .name { font-size: 24px; }
  .tab { font-size: 18px; padding: 4px 8px; }
  .tools { display: grid; grid-template-columns: 1fr 1fr auto; grid-template-rows: 40px 40px; gap: 4px 8px; }
  .tools .sel { grid-column: 1 / 3; grid-row: 1; }
  .tools #run { grid-column: 3; grid-row: 1; }
  .tools #open { grid-column: 1; grid-row: 2; }
  .tools #download { grid-column: 2 / 4; grid-row: 2; }
  .panel-head { gap: 8px; padding: 8px; }
  .panel-head .meta { display: none; }
  .status { flex-wrap: wrap; gap: 4px; padding: 6px 8px; }
  .status .detail { margin-left: 0; }
  .manual-body { padding: 8px 12px 20px; }
  .manual-body td:first-child { white-space: normal; }
}

/* xkcd 303 while the movie rebuilds */
#compiling {
  position: fixed; inset: 0; z-index: 20; display: flex; align-items: center; justify-content: center;
  pointer-events: none;
}
#compiling[hidden] { display: none; }
#compiling .card {
  position: relative;
  background: #000; color: #fff; padding: 10px 24px 12px;
  /* ZX tape-loading stripes as the frame, kept small so it stays cheap to paint */
  border: 10px solid transparent;
  background-clip: padding-box;
  box-shadow: 0 20px 60px rgba(0,0,0,.6);
  font-family: var(--pix); text-align: center;
}
#compiling .card::before {
  content: ""; position: absolute; inset: -10px; z-index: -1;
  background: repeating-linear-gradient(0deg, #d70000 0 5px, #00d7d7 5px 10px);
  animation: tape .2s linear infinite;
}
#compiling svg { display: block; margin: 0 auto; }
#compiling .fig { fill: none; stroke: #fff; stroke-width: 2.2; stroke-linecap: round; }
#compiling .fig circle { fill: #000; }
/* they take turns: left thrusts, then right cuts */
#compiling .fig.left { animation: thrust 1s ease-in-out infinite; }
#compiling .fig.right { animation: cut 1s ease-in-out infinite; transform-origin: 190px 84px; }
#compiling .fig.right .sword { animation: swing 1s ease-in-out infinite; transform-origin: 170px 26px; }
#compiling .sword { stroke: #ffd400; stroke-width: 2.6; }
#compiling .shout { fill: #ffd400; font-family: var(--pix); font-size: 20px; letter-spacing: 1px; }
@keyframes thrust { 0%, 50%, 100% { transform: translateX(0); } 20% { transform: translateX(26px); } 35% { transform: translateX(22px); } }
@keyframes cut { 0%, 50%, 100% { transform: translateX(0) rotate(0); } 70% { transform: translateX(-18px) rotate(-6deg); } 85% { transform: translateX(-14px) rotate(3deg); } }
@keyframes swing { 0%, 50%, 100% { transform: rotate(0); } 62% { transform: rotate(40deg); } 75% { transform: rotate(-30deg); } }
@keyframes tape { from { background-position: 0 0; } to { background-position: 0 10px; } }