/* ── RESET & BASE ──────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  font-family: 'Segoe UI', Tahoma, Geneva, sans-serif;
  font-size: 13px;
  background: #6e6e6e;
  color: #000;
}

/* ── WINDOW (ocupa toda a tela) ────────────────────────────── */
.window {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: #d4d0c8;
}

/* ── TITLE BAR ─────────────────────────────────────────────── */
.titlebar {
  background: linear-gradient(to right, #000080, #1084d0);
  color: #fff;
  padding: 4px 8px;
  font-weight: bold;
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 6px;
  user-select: none;
  flex-shrink: 0;
}
.titlebar-icon { font-size: 16px; }
.titlebar-btns { margin-left: auto; display: flex; gap: 2px; }
.titlebar-btn {
  width: 18px; height: 16px;
  background: #d4d0c8;
  border: 1px solid; border-color: #fff #404040 #404040 #fff;
  cursor: pointer; display: flex; align-items: center;
  justify-content: center; font-size: 9px; color: #000; line-height: 1;
}

/* ── MENU BAR ──────────────────────────────────────────────── */
.menubar {
  background: #d4d0c8;
  border-bottom: 1px solid #808080;
  display: flex;
  padding: 1px 4px;
  flex-shrink: 0;
}
.menu-root {
  position: relative;
  padding: 3px 10px;
  cursor: default;
  user-select: none;
  font-size: 13px;
}
.menu-root:hover,
.menu-root.open { background: #000080; color: #fff; }

.dropdown {
  display: none;
  position: absolute;
  top: 100%; left: 0;
  background: #d4d0c8;
  border: 2px solid; border-color: #fff #404040 #404040 #fff;
  min-width: 220px; z-index: 999;
  box-shadow: 3px 3px 6px rgba(0,0,0,0.4);
}
.menu-root.open .dropdown { display: block; }
.dd-item {
  padding: 4px 20px 4px 26px;
  cursor: default; white-space: nowrap; font-size: 13px;
}
.dd-item:hover { background: #000080; color: #fff; }
.dd-sep { border-top: 1px solid #808080; margin: 3px 6px; }

/* ── TOOLBAR ───────────────────────────────────────────────── */
.toolbar {
  background: #d4d0c8;
  border-bottom: 1px solid #a0a0a0;
  padding: 4px 6px;
  display: flex;
  align-items: center;
  gap: 3px;
  flex-wrap: wrap;
  flex-shrink: 0;
}
.toolbar-sep {
  width: 1px; height: 22px;
  background: #808080;
  margin: 0 4px;
}
.tb-btn {
  border: 2px solid; border-color: #fff #808080 #808080 #fff;
  background: #d4d0c8;
  padding: 3px 10px;
  font-size: 12px; font-family: inherit;
  cursor: pointer; white-space: nowrap;
  min-height: 26px; outline: none;
}
.tb-btn:hover  { background: #c4c0b8; }
.tb-btn:active { border-color: #808080 #fff #fff #808080; }
.tb-btn.primary { font-weight: bold; }
.tb-btn.danger  { color: #800000; font-weight: bold; }

/* ── MAIN BODY ─────────────────────────────────────────────── */
.body {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  padding: 6px;
  gap: 6px;
}

/* ── IMAGE PANELS ──────────────────────────────────────────── */
.images-row {
  display: flex;
  gap: 6px;
  flex: 1;
  min-height: 0;
}

.image-panel {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  border: 2px solid; border-color: #808080 #fff #fff #808080;
  background: #c8c4bc;
}
.panel-header {
  background: #b8b4ac;
  border-bottom: 1px solid #808080;
  padding: 3px 8px;
  font-weight: bold; font-size: 12px;
  text-align: center;
  flex-shrink: 0;
}
.canvas-wrap {
  flex: 1;
  min-height: 200px;
  background: #1a1a1a;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  cursor: crosshair;
}
canvas {
  display: block;
  max-width: 100%;
  max-height: 100%;
  image-rendering: pixelated;
  cursor: crosshair;
}

/* ── CONTROLS ──────────────────────────────────────────────── */
.controls-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: flex-start;
  flex-shrink: 0;
}

.group {
  border: 2px solid; border-color: #808080 #fff #fff #808080;
  padding: 12px 8px 8px 8px;
  position: relative;
  background: #d4d0c8;
}
.group-title {
  position: absolute;
  top: -9px; left: 8px;
  background: #d4d0c8;
  padding: 0 4px;
  font-weight: bold; font-size: 11px;
  white-space: nowrap;
}
.group-body { display: flex; flex-direction: column; gap: 5px; }

.row { display: flex; align-items: center; gap: 5px; white-space: nowrap; }
.lbl { min-width: 68px; text-align: right; font-size: 12px; }

input[type="number"],
input[type="text"] {
  border: 2px solid; border-color: #808080 #fff #fff #808080;
  background: #fff; padding: 2px 4px;
  font-size: 12px; font-family: inherit;
  width: 68px; outline: none;
}
input[readonly] { background: #d4d0c8; }

.ctrl-btn {
  border: 2px solid; border-color: #fff #808080 #808080 #fff;
  background: #d4d0c8;
  padding: 3px 10px; font-size: 12px; font-family: inherit;
  cursor: pointer; white-space: nowrap; outline: none;
  min-height: 24px;
}
.ctrl-btn:hover  { background: #c4c0b8; }
.ctrl-btn:active { border-color: #808080 #fff #fff #808080; }
.ctrl-btn.full   { width: 100%; }

/* ── STATUS BAR ────────────────────────────────────────────── */
.statusbar {
  border-top: 1px solid #808080;
  display: flex; gap: 3px; padding: 3px 5px;
  flex-shrink: 0;
}
.status-pane {
  border: 2px solid; border-color: #808080 #fff #fff #808080;
  padding: 1px 6px; font-size: 11px; flex: 1;
  overflow: hidden; white-space: nowrap; text-overflow: ellipsis;
}
.status-pane.fixed { flex: none; min-width: 150px; }

/* ── MODAL ─────────────────────────────────────────────────── */
.overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,0.35); z-index: 2000;
  align-items: center; justify-content: center;
}
.overlay.show { display: flex; }
.modal-win {
  background: #d4d0c8;
  border: 2px solid; border-color: #fff #404040 #404040 #fff;
  box-shadow: 4px 4px 10px rgba(0,0,0,0.5);
  min-width: 300px; max-width: 440px;
}
.modal-title {
  background: linear-gradient(to right, #000080, #1084d0);
  color: #fff; font-weight: bold; padding: 4px 8px; font-size: 13px;
}
.modal-body  { padding: 16px 18px 12px; line-height: 1.7; font-size: 13px; }
.modal-foot  { display: flex; justify-content: center; padding: 8px; }

/* ── RESPONSIVE ────────────────────────────────────────────── */
@media (max-width: 700px) {
  .images-row { flex-direction: column; }
  .image-panel { min-height: 220px; }
  .toolbar-sep { display: none; }
}