:root {
  --ink: #17130f;
  --ink-2: #241c16;
  --paper: #f3eee6;
  --paper-2: #e7dfd3;
  --copper: #c56a32;
  --copper-2: #f0b27a;
  --line: rgba(243, 238, 230, 0.14);
  --muted: #b5a89b;
  --danger: #c44b3c;
  --shadow: 0 30px 70px rgba(23, 19, 15, 0.28);
  --serif: "Iowan Old Style", Palatino, "Palatino Linotype", Georgia, serif;
  --sans: "Segoe UI", "Avenir Next", "Helvetica Neue", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--paper);
  background:
    radial-gradient(900px 500px at 10% -10%, rgba(197, 106, 50, 0.18), transparent 55%),
    var(--ink);
  font-family: var(--sans);
}

.studio {
  display: grid;
  grid-template-columns: 380px 1fr;
  min-height: 100vh;
}

.rail {
  padding: 28px 26px 32px;
  border-right: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent 120px);
}

.brand {
  display: flex;
  gap: 14px;
  align-items: center;
}

.mark {
  width: 18px;
  height: 18px;
  background: var(--copper);
  box-shadow: 8px 8px 0 var(--copper-2);
}

.eyebrow {
  margin: 0;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 11px;
  color: var(--copper-2);
}

h1 {
  margin: 2px 0 0;
  font-family: var(--serif);
  font-weight: 560;
  font-size: 34px;
  letter-spacing: -0.03em;
}

.status {
  margin: 22px 0 18px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  font-size: 13px;
  color: var(--muted);
}

.status.is-ready { color: #d7c4a4; border-color: rgba(240, 178, 122, 0.35); }
.status.is-bad { color: #f0b2aa; border-color: rgba(196, 75, 60, 0.45); }

.modes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 18px;
}

.mode, .run, select, input, textarea, summary {
  font: inherit;
  color: inherit;
}

.mode {
  padding: 10px 12px;
  border: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
}

.mode.is-on {
  background: var(--paper);
  color: var(--ink);
  border-color: var(--paper);
}

.field, .grid label, .key {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 14px;
  font-size: 13px;
  color: var(--muted);
}

.field em { font-style: normal; color: #7d7368; }

textarea, input, select {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--ink-2);
  color: var(--paper);
  padding: 12px;
}

textarea {
  resize: vertical;
  min-height: 140px;
  line-height: 1.45;
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.drop {
  position: relative;
  min-height: 148px;
  border: 1px dashed rgba(240, 178, 122, 0.55);
  background: rgba(197, 106, 50, 0.06);
  display: grid;
  place-items: center;
  text-align: center;
  padding: 12px;
  cursor: pointer;
}

.drop input {
  position: absolute;
  inset: 0;
  z-index: 2;
  opacity: 0;
  cursor: pointer;
}

.drop p { margin: 0; max-width: 180px; }

.drop img {
  display: none;
  width: 100%;
  max-height: 180px;
  object-fit: contain;
}

.drop.has-file p { display: none; }
.drop.has-file img { display: block; }

.key summary { cursor: pointer; }

.run {
  width: 100%;
  margin-top: 6px;
  padding: 14px 16px;
  border: 0;
  background: var(--copper);
  color: #fff8f2;
  font-size: 16px;
  letter-spacing: 0.01em;
  cursor: pointer;
}

.run:disabled {
  cursor: wait;
  opacity: 0.7;
}

.error {
  color: #f0b2aa;
  font-size: 13px;
  line-height: 1.4;
}

.stage {
  display: grid;
  place-items: center;
  padding: 36px;
}

.sheet {
  width: min(920px, 100%);
  min-height: 620px;
  background: var(--paper);
  color: var(--ink);
  box-shadow: var(--shadow);
  padding: 22px;
  display: grid;
}

.empty, .wait {
  margin: auto;
  text-align: center;
}

.empty p, .wait p {
  margin: 12px 0 4px;
  font-family: var(--serif);
  font-size: 28px;
}

.empty small, .wait strong {
  color: #6f655b;
  font-weight: 500;
}

.cross {
  display: inline-block;
  width: 28px;
  height: 28px;
  border: 1px solid #c9bfb2;
  position: relative;
}

.cross::before, .cross::after {
  content: "";
  position: absolute;
  background: #c9bfb2;
}

.cross::before { left: 50%; top: 4px; bottom: 4px; width: 1px; }
.cross::after { top: 50%; left: 4px; right: 4px; height: 1px; }

.bar {
  width: 160px;
  height: 2px;
  margin: 0 auto;
  background: linear-gradient(90deg, transparent, var(--copper), transparent);
  background-size: 200% 100%;
  animation: sweep 1.6s linear infinite;
}

@keyframes sweep {
  from { background-position: 100% 0; }
  to { background-position: -100% 0; }
}

.wait strong {
  display: block;
  margin-top: 8px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.08em;
}

.frame {
  position: relative;
  background:
    linear-gradient(45deg, #e4dcd1 25%, transparent 25%),
    linear-gradient(-45deg, #e4dcd1 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #e4dcd1 75%),
    linear-gradient(-45deg, transparent 75%, #e4dcd1 75%);
  background-size: 22px 22px;
  background-position: 0 0, 0 11px, 11px -11px, -11px 0;
  background-color: #efe8de;
}

.frame img {
  display: block;
  width: 100%;
  max-height: 72vh;
  object-fit: contain;
}

#source-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  pointer-events: none;
}

figcaption {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  margin-top: 14px;
  font-size: 13px;
  color: #6f655b;
}

.actions {
  display: flex;
  gap: 16px;
  align-items: center;
}

#compare-wrap {
  display: flex;
  gap: 8px;
  align-items: center;
}

#download {
  color: var(--copper);
  font-weight: 600;
}

@media (max-width: 860px) {
  .studio { grid-template-columns: 1fr; }
  .rail { border-right: 0; border-bottom: 1px solid var(--line); }
  .stage { padding: 18px; }
  .sheet { min-height: 420px; }
}