/* APP LAYOUT & COMPONENTS - colours/fonts come from theme.css tokens only. */
*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { height: 100%; margin: 0; }
body { background: var(--bg-deep); color: var(--ink); font: 13px/1.4 var(--font-mono); -webkit-font-smoothing: antialiased; }
button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.shell { height: 100vh; display: grid; grid-template-columns: var(--rail-w) var(--panel-w) minmax(0, 1fr); grid-template-rows: auto minmax(0, 1fr) auto; background: var(--bg); }

/* ---------- masthead ---------- */
.mast { grid-column: 1 / -1; display: flex; align-items: center; gap: 28px; padding: 8px 18px; background: var(--mast-bg); color: var(--mast-ink); border-bottom: 3px solid var(--accent); }
.brand { font: 900 34px/1 var(--font-display); letter-spacing: -0.055em; white-space: nowrap; }
.brand .b-acc { color: var(--accent); margin-left: 2px; }
.brand sup { font: 700 12px var(--font-mono); letter-spacing: 0; vertical-align: top; margin-left: 2px; color: var(--mast-ink); }
.mast-mid { flex: 1; min-width: 0; display: flex; align-items: center; gap: 14px; }
.tag { font: 700 10.5px var(--font-mono); letter-spacing: 0.14em; text-transform: uppercase; white-space: nowrap; }
.tag.jp { font-family: var(--font-jp); letter-spacing: 0.04em; color: var(--mast-dim); }
.stripes { flex: 1; min-width: 40px; height: 8px; background: linear-gradient(90deg, var(--s1) 0 20%, var(--s2) 20% 40%, var(--s3) 40% 60%, var(--s4) 60% 80%, var(--s5) 80%); }
.mast-right { display: flex; align-items: center; gap: 16px; }
.serial { font: 400 9.5px/1.3 var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase; text-align: right; color: var(--mast-dim); }
.serial b { color: var(--mast-ink); letter-spacing: 0.12em; }

/* ---------- keycaps / buttons ---------- */
.key, .btn {
  font: 700 11px var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--key-ink);
  padding: 7px 11px; border: 2px solid var(--ink); border-radius: 3px;
  background: linear-gradient(var(--key-hi), var(--key)); box-shadow: 0 3px 0 var(--ink), inset 0 1px 0 rgba(255, 255, 255, 0.22);
  transition: transform 0.05s, box-shadow 0.05s;
}
.mast .key { border-color: #000; box-shadow: 0 3px 0 #000, inset 0 1px 0 rgba(255,255,255,.22); }
.key:hover, .btn:hover { filter: brightness(1.1); }
.key:active, .btn:active, .key[aria-pressed="true"], .key[aria-checked="true"] {
  transform: translateY(2px); box-shadow: 0 1px 0 var(--ink), inset 0 2px 4px rgba(0, 0, 0, 0.4);
  background: var(--accent); color: var(--accent-ink);
}
.keys { display: flex; flex-wrap: wrap; gap: 8px; padding-bottom: 4px; }
.btn { display: block; width: 100%; padding: 10px 12px; margin: 12px 0 6px; text-align: center; }
.btn.primary { background: var(--accent); color: var(--accent-ink); }
.row2 { display: flex; gap: 8px; align-items: stretch; margin: 10px 0 6px; }
.row2 .btn { width: auto; margin: 0 0 3px; flex: 0 0 auto; }
.row2 .sel { flex: 1; min-width: 0; }
.toggle { display: inline-flex; align-items: center; gap: 9px; }
.toggle .led { width: 10px; height: 10px; border: 2px solid var(--ink); background: #3b3e41; }
.toggle[aria-checked="true"] .led { background: var(--lcd); box-shadow: 0 0 6px var(--lcd); }

/* ---------- sidebar ---------- */
.rail { background: var(--plate-2); border-right: 3px solid var(--ink); overflow-y: auto; display: flex; flex-direction: column; }
.rail-btn { display: flex; flex-direction: column; align-items: center; gap: 3px; padding: 11px 4px 9px; border: 0; border-bottom: 2px solid var(--ink); background: transparent; color: var(--ink); }
.rail-btn .ico { width: 30px; height: 30px; display: block; }
.rail-btn .ico svg { width: 100%; height: 100%; display: block; }
.rail-btn .t { font: 800 10.5px var(--font-mono); letter-spacing: 0.06em; }
.rail-btn .j { font: 500 9px var(--font-jp); color: var(--ink-soft); min-height: 12px; }
.rail-btn:hover { background: var(--plate-3); }
.rail-btn[aria-selected="true"] { background: var(--accent); color: var(--accent-ink); box-shadow: inset 0 4px 0 rgba(0, 0, 0, 0.35); }
.rail-btn[aria-selected="true"] .j { color: var(--accent-ink); opacity: 0.85; }

/* ---------- panels ---------- */
.panels { background: var(--plate); border-right: 3px solid var(--ink); overflow-y: auto; }
.phead { position: relative; padding: 16px 18px 12px; border-bottom: 3px solid var(--ink); background: var(--plate); }
.pnum { font: 700 10px var(--font-mono); letter-spacing: 0.16em; color: var(--ink-soft); }
.phead h2 { margin: 2px 0 0; font: 900 42px/0.95 var(--font-display); letter-spacing: -0.055em; text-transform: uppercase; }
.phead sup { font: 700 13px var(--font-mono); letter-spacing: 0; color: var(--accent); vertical-align: top; margin-left: 3px; }
.pjp { position: absolute; right: 18px; top: 16px; font: 700 12px var(--font-jp); color: var(--ink-soft); }
.barcode { display: block; height: 14px; margin-top: 10px; background: repeating-linear-gradient(90deg, var(--ink) 0 2px, transparent 2px 4px, var(--ink) 4px 5px, transparent 5px 8px, var(--ink) 8px 11px, transparent 11px 13px); }
.pbody { padding: 4px 18px 28px; }
.sub { margin: 22px 0 8px; padding-top: 7px; border-top: 2px solid var(--ink); font: 800 10.5px var(--font-mono); letter-spacing: 0.14em; text-transform: uppercase; }
.sub::before { content: ""; display: inline-block; width: 8px; height: 8px; margin-right: 8px; background: var(--accent); }
.hint { margin-top: 5px; font-size: 10.5px; line-height: 1.4; color: var(--ink-soft); }

/* ---------- controls ---------- */
.ctl { margin: 14px 0; }
.ctl-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.lbl { font: 700 11px var(--font-mono); letter-spacing: 0.07em; text-transform: uppercase; }
.lcd-in { width: 74px; padding: 2px 6px; border: 2px solid var(--ink); border-radius: 2px; background: var(--lcd); color: var(--lcd-ink); font: 700 12px var(--font-mono); text-align: right; box-shadow: inset 0 1px 4px rgba(0, 0, 0, 0.3); -moz-appearance: textfield; }
.lcd-in::-webkit-outer-spin-button, .lcd-in::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.sel { width: 100%; margin-top: 5px; padding: 8px 9px; border: 2px solid var(--ink); border-radius: 2px; background: var(--plate-3); color: var(--ink); font: 700 12px var(--font-mono); }
.row2 .sel { margin-top: 0; }

input[type="range"] { -webkit-appearance: none; appearance: none; display: block; width: 100%; height: 26px; margin: 6px 0 0; background: transparent; --fill: 50%; }
input[type="range"]::-webkit-slider-runnable-track { height: 10px; border: 2px solid var(--ink); border-radius: 1px; background: linear-gradient(90deg, var(--fillc, var(--accent)) var(--fill), var(--plate-3) var(--fill)); }
input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 16px; height: 24px; margin-top: -9px; border: 2px solid var(--ink); border-radius: 2px; background: linear-gradient(var(--key-hi), var(--key)); box-shadow: inset 0 -4px 0 var(--key-lo), 0 2px 0 var(--ink); }
input[type="range"]::-moz-range-track { height: 6px; border: 2px solid var(--ink); border-radius: 1px; background: var(--plate-3); }
input[type="range"]::-moz-range-progress { height: 6px; background: var(--fillc, var(--accent)); }
input[type="range"]::-moz-range-thumb { width: 12px; height: 20px; border: 2px solid var(--ink); border-radius: 2px; background: linear-gradient(var(--key-hi), var(--key)); box-shadow: inset 0 -4px 0 var(--key-lo); }
.chan-r { --fillc: #e0402a; } .chan-g { --fillc: #5aa51f; } .chan-b { --fillc: #2a86d8; }

.colorrow { display: flex; gap: 8px; align-items: center; margin-top: 5px; }
.swatch-in { width: 46px; height: 34px; padding: 0; border: 2px solid var(--ink); border-radius: 2px; background: var(--plate-3); }
.hexed, .hexlbl { width: 96px; text-align: left; letter-spacing: 0.08em; }
.hexlbl { padding: 5px 8px; }

.swatches { display: grid; grid-template-columns: repeat(auto-fill, minmax(24px, 1fr)); gap: 4px; padding: 8px; border: 2px solid var(--ink); background: var(--plate-3); }
.sw { aspect-ratio: 1; padding: 0; border: 2px solid var(--ink); border-radius: 1px; }
.sw[aria-selected="true"] { outline: 3px solid var(--accent); outline-offset: 1px; position: relative; z-index: 1; }

.drop { position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; width: 100%; height: 150px; margin-top: 14px; border: 3px dashed var(--ink); background: var(--plate-2); text-align: center; }
.drop b { font: 900 22px var(--font-display); letter-spacing: -0.03em; }
.drop span { font-size: 10.5px; color: var(--ink-soft); }
.drop:hover, .drop.over { border-color: var(--accent); background: var(--plate-3); }
.corner { position: absolute; width: 14px; height: 14px; border: 0 solid var(--accent); }
.corner.tl { left: 6px; top: 6px; border-width: 3px 0 0 3px; } .corner.br { right: 6px; bottom: 6px; border-width: 0 3px 3px 0; }
.info { display: grid; grid-template-columns: 70px 1fr; gap: 4px 10px; margin: 0; font-size: 12px; }
.info dt { color: var(--ink-soft); font-weight: 700; } .info dd { margin: 0; font-weight: 700; word-break: break-all; }
.bank { display: flex; align-items: center; gap: 8px; margin: 10px 0; }
.bank b { width: 56px; font-size: 11px; letter-spacing: 0.06em; }
.bank .btn { width: auto; margin: 0 0 3px; padding: 6px 9px; }
.bankst { flex: 1; width: auto; text-align: center; padding: 5px 6px; }

/* ---------- stage ---------- */
.stage { display: flex; flex-direction: column; gap: 12px; padding: 14px; min-width: 0; min-height: 0; }
.stage-bar { display: flex; flex-wrap: wrap; align-items: flex-start; gap: 18px; }
.bezel { position: relative; flex: 1; min-height: 0; padding: 22px 22px 30px; border: 3px solid var(--ink); border-radius: 10px 10px 34px 10px; background: linear-gradient(145deg, var(--bezel-hi), var(--bezel)); box-shadow: inset 0 2px 0 rgba(255, 255, 255, 0.2), 0 6px 0 rgba(0, 0, 0, 0.35); }
.screen { position: relative; height: 100%; overflow: hidden; border: 3px solid var(--ink); border-radius: 3px; background: var(--screen); box-shadow: inset 0 0 40px rgba(0, 0, 0, 0.65); cursor: grab; touch-action: none; user-select: none; }
.screen.grabbing { cursor: grabbing; }
.wrap { position: absolute; left: 50%; top: 50%; background: conic-gradient(#3b3e41 25%, #2a2c2e 0 50%, #3b3e41 0 75%, #2a2c2e 0) 0 0 / 16px 16px; box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.6); }
.wrap canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.cout { image-rendering: pixelated; } .cin { image-rendering: auto; }
.wrap[data-mode="out"] .cin, .wrap[data-mode="in"] .cout { display: none; }
.handle { display: none; position: absolute; top: 0; bottom: 0; width: 26px; margin-left: -13px; cursor: ew-resize; }
.handle i { position: absolute; left: 12px; width: 2px; top: 0; bottom: 0; background: var(--accent); box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.7); }
.handle i::after { content: ""; position: absolute; left: -9px; top: 50%; width: 20px; height: 28px; margin-top: -14px; background: var(--accent); border: 2px solid var(--ink); border-radius: 3px; }
.wrap[data-mode="split"] .handle { display: block; }
.mark { display: none; position: absolute; top: 6px; padding: 1px 6px; background: var(--ink); color: var(--lcd); font: 700 10px var(--font-mono); letter-spacing: 0.12em; pointer-events: none; }
.mark-in { left: 6px; } .mark-out { right: 6px; }
.wrap[data-mode="split"] .mark { display: block; }
.screen.scan::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: repeating-linear-gradient(0deg, rgba(0, 0, 0, 0.22) 0 1px, transparent 1px 3px), radial-gradient(ellipse at center, transparent 55%, rgba(0, 0, 0, 0.45)); }
.led-row { position: absolute; left: 26px; bottom: 8px; display: flex; align-items: center; gap: 7px; font: 700 9px var(--font-mono); letter-spacing: 0.14em; color: var(--key-ink); opacity: 0.85; }
.led-busy { width: 8px; height: 8px; border-radius: 50%; background: #34373a; border: 1px solid var(--ink); }
body.busy .led-busy { background: var(--accent); box-shadow: 0 0 8px var(--accent); }
.lcd { display: flex; flex-wrap: wrap; gap: 4px 26px; padding: 7px 12px; border: 3px solid var(--ink); border-radius: 2px; background: var(--lcd); color: var(--lcd-ink); font: 700 12px var(--font-mono); letter-spacing: 0.1em; box-shadow: inset 0 0 14px rgba(0, 0, 0, 0.28); background-image: linear-gradient(rgba(0, 0, 0, 0.06) 1px, transparent 1px); background-size: 100% 3px; }

.foot { grid-column: 1 / -1; display: flex; justify-content: space-between; gap: 18px; padding: 6px 18px; background: var(--mast-bg); color: var(--foot-ink); font-size: 10px; letter-spacing: 0.05em; }
.toast { color: var(--lcd); font-weight: 700; opacity: 0; transition: opacity 0.2s; white-space: nowrap; }
.toast.on { opacity: 1; }
.dropveil { display: none; position: fixed; inset: 0; z-index: 50; align-items: center; justify-content: center; background: rgba(0, 0, 0, 0.72); border: 8px dashed var(--accent); pointer-events: none; }
.dropveil b { font: 900 64px var(--font-display); letter-spacing: -0.05em; color: var(--accent); }
body.dropping .dropveil { display: flex; }

/* tool-owned preview overlay (ASCII) */
.overlay { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; overflow: hidden; cursor: default; }
.screen.has-overlay { cursor: default; }
.screen.has-overlay .wrap { display: none; }
body.overlay-mode [data-view], body.overlay-mode [data-zoom] { opacity: 0.35; pointer-events: none; }
.ascii-stack { display: grid; isolation: isolate; }
.ascii-stack > .ascii-pre { grid-area: 1 / 1; }
.ascii-stack.shifted > .ascii-pre { mix-blend-mode: screen; }
.ascii-pre { margin: 0; white-space: pre; font-family: var(--font-mono); font-variant-ligatures: none; letter-spacing: 0; color: var(--lcd); }

@media (max-width: 960px) {
  .shell { height: auto; grid-template-columns: minmax(0, 1fr); grid-template-rows: auto auto auto minmax(440px, 70vh) auto; }
  .mast { flex-wrap: wrap; gap: 8px 18px; } .mast-mid { order: 3; flex-basis: 100%; }
  .rail { flex-direction: row; overflow-x: auto; border-right: 0; border-bottom: 3px solid var(--ink); }
  .rail-btn { flex: 1 0 84px; border-bottom: 0; border-right: 2px solid var(--ink); }
  .panels { max-height: 62vh; border-right: 0; border-bottom: 3px solid var(--ink); }
  .serial { display: none; } .credit { display: none; }
}