/* Black and white, blocky: pixel font for labels, hard 3px borders, offset shadows, no rounding.
   Desktop: image left, controls right. Phone: image on top, controls below, actions in thumb reach. */
@font-face { font-family: Silkscreen; src: url(fonts/silkscreen-latin-400-normal.woff2) format('woff2'); font-display: swap; }
@font-face { font-family: Silkscreen; font-weight: 700; src: url(fonts/silkscreen-latin-700-normal.woff2) format('woff2'); font-display: swap; }
@font-face { font-family: 'Space Mono'; src: url(fonts/space-mono-latin-400-normal.woff2) format('woff2'); font-display: swap; }

:root {
  --bg: #fff; --fg: #000; --muted: #6b6b6b; --dim: #e6e6e6;
  --pixel: Silkscreen, ui-monospace, monospace;
  --mono: 'Space Mono', ui-monospace, Menlo, Consolas, monospace;
  --b: 3px; --s: 4px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) { --bg: #000; --fg: #fff; --muted: #8f8f8f; --dim: #1c1c1c; color-scheme: dark; }
}
:root[data-theme="dark"] { --bg: #000; --fg: #fff; --muted: #8f8f8f; --dim: #1c1c1c; color-scheme: dark; }

* { box-sizing: border-box; }
html, body { height: 100%; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 14px/1.5 var(--mono);
  display: flex; flex-direction: column; -webkit-tap-highlight-color: transparent; }
button, input { font: inherit; color: inherit; }
a { color: inherit; }

.top { display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: max(10px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) 10px max(16px, env(safe-area-inset-left));
  border-bottom: var(--b) solid var(--fg); }
.logo { margin: 0; font: 400 20px/1 var(--pixel); letter-spacing: 0.02em; }
.logo b { font-weight: 700; background: var(--fg); color: var(--bg); padding: 0 4px; margin: 0 2px; }
.chip { font: 12px/1 var(--pixel); border: 2px solid var(--fg); padding: 5px 7px; white-space: nowrap; }
.chip.on { background: var(--fg); color: var(--bg); }

.layout { flex: 1; min-height: 0; display: grid; grid-template-columns: minmax(0, 1fr) 360px; }
/* Phone: the page scrolls as a whole; the stage is as tall as the image needs (at most 70% of the screen). */
@media (max-width: 860px) {
  html, body { height: auto; }
  .layout { display: block; }
}

/* --- stage ------------------------------------------------------------------ */
.stage { position: relative; min-height: 0; display: grid; place-items: center; padding: 20px; overflow: hidden;
  /* 2x2 dither as backdrop */
  background-color: var(--bg);
  background-image: conic-gradient(var(--dim) 25%, transparent 0 50%, var(--dim) 0 75%, transparent 0);
  background-size: 8px 8px; user-select: none; -webkit-user-select: none; -webkit-touch-callout: none;
  touch-action: manipulation; }
@media (max-width: 860px) {
  .stage { height: clamp(260px, calc((100vw - 34px) * var(--ar, 0.75) + 34px), 70dvh); padding: 12px;
    border-bottom: var(--b) solid var(--fg); }
}
.stage.drop { outline: var(--b) dashed var(--fg); outline-offset: -12px; }
.media { max-width: 100%; max-height: 100%; width: auto; height: auto; display: block;
  border: var(--b) solid var(--fg); box-shadow: var(--s) var(--s) 0 var(--fg); background: var(--bg); }
#view.pixel { image-rendering: pixelated; }

.empty { display: grid; justify-items: center; gap: 14px; text-align: center; background: var(--bg);
  border: var(--b) solid var(--fg); box-shadow: var(--s) var(--s) 0 var(--fg); padding: 28px 24px; max-width: 320px; }
.big { margin: 0; font: 700 28px/1 var(--pixel); }
.small { margin: 0; font-size: 12px; color: var(--muted); }
.hint, .tag { position: absolute; margin: 0; font: 12px/1.3 var(--pixel); background: var(--fg); color: var(--bg); padding: 6px 8px; }
.hint { left: 12px; right: 12px; bottom: 16px; text-align: center; justify-self: center; max-width: 420px; margin-inline: auto; }
.tag { top: 12px; left: 12px; }

.busy { position: absolute; left: 50%; bottom: 18px; transform: translateX(-50%); width: min(420px, calc(100% - 24px));
  display: grid; grid-template-columns: 1fr auto; gap: 8px 10px; align-items: center;
  background: var(--bg); border: var(--b) solid var(--fg); box-shadow: var(--s) var(--s) 0 var(--fg); padding: 10px; }
.busy .meter { grid-column: 1 / -1; }
#busyText { font: 12px var(--pixel); }

/* block meters: progress shows as discrete 8px cells */
.meter, .pbar { height: 14px; border: 2px solid var(--fg); padding: 2px; }
.meter i, .pbar i { display: block; height: 100%; width: 0;
  background: repeating-linear-gradient(90deg, var(--fg) 0 6px, transparent 6px 8px); }
.pbar { position: absolute; left: 0; right: 0; bottom: 0; height: 8px; border: 0; padding: 0; }
.pbar i { background: repeating-linear-gradient(90deg, var(--fg) 0 6px, transparent 6px 8px); }

/* --- panel ------------------------------------------------------------------ */
.panel { border-left: var(--b) solid var(--fg); padding: 16px; display: flex; flex-direction: column; gap: 14px; overflow-y: auto;
  padding-bottom: max(16px, env(safe-area-inset-bottom)); }
@media (max-width: 860px) { .panel { border-left: 0; overflow: visible; padding-inline: max(16px, env(safe-area-inset-left)); } }
.group { display: grid; gap: 10px; border: var(--b) solid var(--fg); padding: 12px; }
.label { font: 13px var(--pixel); display: flex; justify-content: space-between; }
.label small { color: var(--muted); }

.guides { display: flex; flex-wrap: wrap; gap: 10px; }
.guide { position: relative; width: 60px; height: 60px; border: var(--b) solid var(--fg); padding: 0; background: var(--bg);
  cursor: pointer; display: grid; place-items: center; }
.guide img { width: 100%; height: 100%; object-fit: cover; display: block; image-rendering: pixelated; }
.guide.sel { box-shadow: var(--s) var(--s) 0 var(--fg); transform: translate(-2px, -2px); }
.guide.wait img { opacity: 0.35; }
.guide .w { position: absolute; left: 2px; right: 2px; bottom: 2px; height: 5px; background: var(--bg); }
.guide .w i { display: block; height: 100%; background: var(--fg); }
.guide.add { font: 28px/1 var(--pixel); border-style: dashed; }
.guide.add:hover { background: var(--fg); color: var(--bg); border-style: solid; }
input[type=file] { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
.group-inner { display: grid; gap: 10px; }
.guide-edit { display: grid; grid-template-columns: 1fr auto; gap: 10px; align-items: center; }

.row { display: grid; grid-template-columns: 64px 1fr; align-items: center; gap: 10px; font: 12px var(--pixel); }
.ends { display: flex; justify-content: space-between; font: 10px var(--pixel); color: var(--muted); margin: -6px 0 0 74px; }

input[type=range] { -webkit-appearance: none; appearance: none; width: 100%; height: 26px; background: transparent; margin: 0; cursor: pointer; }
input[type=range]::-webkit-slider-runnable-track { height: 12px; border: 2px solid var(--fg);
  background: linear-gradient(90deg, var(--fg) var(--v, 50%), transparent 0); }
input[type=range]::-moz-range-track { height: 8px; border: 2px solid var(--fg);
  background: linear-gradient(90deg, var(--fg) var(--v, 50%), transparent 0); }
input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 16px; height: 24px; margin-top: -8px;
  background: var(--bg); border: var(--b) solid var(--fg); border-radius: 0; }
input[type=range]::-moz-range-thumb { width: 10px; height: 18px; background: var(--bg); border: var(--b) solid var(--fg); border-radius: 0; }
input[type=range]:focus-visible { outline: 2px dashed var(--fg); outline-offset: 2px; }

.seg { display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; border: var(--b) solid var(--fg); }
.seg button { border: 0; background: transparent; padding: 9px 6px; font: 12px var(--pixel); cursor: pointer; }
.seg button + button { border-left: var(--b) solid var(--fg); }
.seg button[aria-checked="true"] { background: var(--fg); color: var(--bg); }
.seg.kind button { padding: 12px 6px; font-size: 13px; }

.btn { position: relative; display: inline-grid; place-items: center; font: 13px/1 var(--pixel); padding: 13px 14px;
  border: var(--b) solid var(--fg); background: var(--bg); color: var(--fg); cursor: pointer; text-decoration: none;
  box-shadow: var(--s) var(--s) 0 var(--fg); transition: transform 60ms steps(1), box-shadow 60ms steps(1); }
.btn:hover:not(:disabled) { background: var(--dim); }
.btn:active:not(:disabled) { transform: translate(var(--s), var(--s)); box-shadow: none; }
.btn.primary { background: var(--fg); color: var(--bg); }
.btn.primary:hover:not(:disabled) { background: var(--fg); outline: 2px solid var(--bg); outline-offset: -6px; }
.btn:disabled { box-shadow: none; color: var(--muted); border-color: var(--muted); cursor: default; }
.btn.primary:disabled { background: var(--dim); }
.btn.small { padding: 8px 10px; font-size: 11px; box-shadow: 3px 3px 0 var(--fg); }
.btn:focus-visible, .seg button:focus-visible, .guide:focus-visible, .guide.add:focus-within { outline: 2px dashed var(--fg); outline-offset: 3px; }

.actions { display: flex; gap: 10px; margin-top: auto; padding-right: var(--s); }
.actions .btn { flex: 1 1 0; min-width: 0; padding-inline: 6px; }
.actions .btn.primary { flex-grow: 1.7; }
@media (max-width: 860px) {
  .actions { position: sticky; bottom: 0; z-index: 1; background: var(--bg); margin: 0 -16px; margin-top: 0;
    padding: 12px calc(16px + var(--s)) max(12px, env(safe-area-inset-bottom)) 16px; border-top: var(--b) solid var(--fg); }
}
.foot { text-align: center; }
[hidden] { display: none !important; }