:root {
  --bg: #1b1e24;
  --panel: #242832;
  --panel-2: #2c313d;
  --line: #39404f;
  --text: #e7ebf2;
  --muted: #9aa4b8;
  --accent: #d08770;
  --accent-2: #81a1c1;
  --warn: #ebcb8b;
  --bad: #bf616a;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.45 "Segoe UI", system-ui, sans-serif;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

header {
  flex: 0 0 auto;
  padding: 14px 20px 10px;
  border-bottom: 1px solid var(--line);
}
header h1 { margin: 0; font-size: 17px; font-weight: 600; letter-spacing: .2px; }
header .sub { margin: 2px 0 0; color: var(--muted); font-size: 12px; }

main {
  flex: 1 1 auto;
  min-height: 0;
  display: grid;
  grid-template-columns: 350px minmax(0, 1fr);
}

#controls {
  min-height: 0;
  overflow-y: auto;
  padding: 14px;
  border-right: 1px solid var(--line);
  background: var(--panel);
}

#stage {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
}

#viewer { flex: 1 1 auto; position: relative; min-height: 0; overflow: hidden; background: #15171c; }
#viewer canvas { display: block; }

#viewerBar {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 7px 14px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  font-size: 12px;
  color: var(--muted);
  background: var(--panel);
}
#status { flex: 1; }
#status.err { color: var(--bad); }
#status.busy { color: var(--accent-2); }

#flatPreview {
  flex: 0 0 auto;
  padding: 12px 14px;
  background: var(--panel-2);
  border-bottom: 1px solid var(--line);
  text-align: center;
}
#flatPreview svg { max-height: 240px; max-width: 100%; background: #fff; border-radius: 4px; }

#report {
  flex: 0 0 auto;
  padding: 10px 14px 16px;
  background: var(--panel);
  max-height: 32vh;
  overflow-y: auto;
}

/* upload */
.drop {
  position: relative;
  border: 1px dashed var(--line);
  border-radius: 8px;
  background: var(--panel-2);
  padding: 16px;
  text-align: center;
  cursor: pointer;
  transition: border-color .15s, background .15s;
}
.drop:hover, .drop.over { border-color: var(--accent); background: #333846; }
.drop input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.drop img { display: none; max-height: 130px; max-width: 100%; border-radius: 4px; background: #fff; }
.drop.has img { display: inline-block; }
.drop.has #dropText { display: none; }
#dropText strong { display: block; font-size: 13px; }
#dropText span { color: var(--muted); font-size: 12px; }

/* panels */
details {
  border: 1px solid var(--line);
  border-radius: 6px;
  margin-top: 10px;
  background: var(--panel-2);
}
details[open] { padding-bottom: 6px; }
summary {
  cursor: pointer;
  padding: 8px 10px;
  font-weight: 600;
  font-size: 12.5px;
  letter-spacing: .3px;
  text-transform: uppercase;
  color: var(--muted);
  user-select: none;
}
summary::marker { color: var(--line); }

.field {
  display: grid;
  grid-template-columns: 1fr 92px;
  align-items: center;
  gap: 8px;
  padding: 4px 10px;
}
.field label { font-size: 12.5px; }
.field .unit { color: var(--muted); font-size: 11px; }
.field.check { grid-template-columns: 1fr auto; }
.field.wide { grid-template-columns: 1fr; }
.field.hidden { display: none; }

input[type=number], select {
  width: 100%;
  padding: 4px 6px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #1b1e24;
  color: var(--text);
  font: inherit;
  font-size: 12.5px;
}
input[type=number]:focus, select:focus { outline: 1px solid var(--accent-2); }
input[type=checkbox] { accent-color: var(--accent); }

.row.actions { display: flex; align-items: center; gap: 10px; margin-top: 12px; }
.inline { display: inline-flex; align-items: center; gap: 5px; font-size: 12px; color: var(--muted); }

.presets {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
}
.presets span { color: var(--muted); font-size: 11.5px; margin-right: 2px; }
.presets button { padding: 4px 9px; font-size: 12px; }

.sourceTabs { display: flex; gap: 6px; margin-bottom: 12px; }
.sourceTabs button { flex: 1; padding: 6px 8px; font-size: 12.5px; }
.sourceTabs button.on {
  background: var(--accent);
  border-color: var(--accent);
  color: #22262e;
  font-weight: 600;
}

textarea {
  width: 100%;
  padding: 5px 6px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #1b1e24;
  color: var(--text);
  font: inherit;
  font-size: 13px;
  resize: vertical;
}
textarea:focus { outline: 1px solid var(--accent-2); }

.fontFilter {
  width: 100%;
  padding: 4px 6px;
  margin-bottom: 5px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #1b1e24;
  color: var(--text);
  font: inherit;
  font-size: 12px;
}

.fontLines { display: flex; flex-direction: column; gap: 4px; }
.fontLine {
  display: grid;
  grid-template-columns: 54px 1fr 56px;
  align-items: center;
  gap: 5px;
}
.fontLine .lineTag {
  font-size: 10.5px;
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.fontLine select, .fontLine input { font-size: 12px; padding: 3px 5px; }

#flatPreview .caption {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 11.5px;
}

button {
  padding: 7px 14px;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--panel-2);
  color: var(--text);
  font: inherit;
  font-size: 13px;
  cursor: pointer;
}
button:hover { border-color: var(--accent-2); }
button.primary { background: var(--accent); border-color: var(--accent); color: #22262e; font-weight: 600; }
button.primary:hover { filter: brightness(1.08); }
button:disabled { opacity: .5; cursor: default; }

/* report */
.dl { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; }
.dl a {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 6px 11px;
  border: 1px solid var(--accent-2);
  border-radius: 5px;
  color: var(--accent-2);
  text-decoration: none;
  font-size: 12.5px;
}
.dl a:hover { background: rgba(129, 161, 193, .12); }
.dl a small { color: var(--muted); }

.notes { margin: 0 0 8px; padding-left: 18px; color: var(--warn); font-size: 12.5px; }
.notes li { margin: 2px 0; }

table.info { width: 100%; border-collapse: collapse; font-size: 12px; }
table.info th, table.info td { text-align: left; padding: 3px 8px 3px 0; border-bottom: 1px solid var(--line); }
table.info th { color: var(--muted); font-weight: 500; }
.hint { color: var(--muted); font-size: 11.5px; margin: 4px 10px 8px; }