/* Estructura general: barra superior, caja de herramientas, mesa de dibujo,
   paneles y barra de estado. */

#app {
  display: grid;
  grid-template-rows: var(--topbar-h) 1fr var(--status-h);
  height: 100vh;
  height: 100dvh;
}

/* --------------------------------------------------------------- topbar */

#topbar {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0 10px;
  background: var(--bg-2);
  border-bottom: 1px solid var(--line);
  position: relative;
  z-index: 60;
}

.brand {
  display: flex;
  align-items: center;
  gap: 7px;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: -.01em;
  padding-right: 10px;
  margin-right: 4px;
  border-right: 1px solid var(--line);
  height: 22px;
  color: var(--text);
}
.brand-mark { color: var(--gold); display: grid; place-items: center; }
.brand-mark svg { width: 18px; height: 18px; }

.menu { position: relative; }
.menu-btn {
  font: inherit;
  font-size: 12.5px;
  color: var(--text-2);
  background: none;
  border: none;
  padding: 5px 10px;
  border-radius: var(--radius);
  cursor: pointer;
}
.menu-btn:hover { background: var(--bg-4); color: var(--text); }
.menu.open .menu-btn { background: var(--bg-4); color: var(--text); }

.menu-list {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  min-width: 250px;
  padding: 5px;
  background: var(--bg-3);
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  z-index: 70;
}
.menu.open .menu-list { display: block; }

.menu-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: 100%;
  font: inherit;
  font-size: 12.5px;
  color: var(--text);
  background: none;
  border: none;
  padding: 6px 9px;
  border-radius: 4px;
  cursor: pointer;
  text-align: left;
}
.menu-item:hover { background: var(--accent); color: #fff; }
.menu-item:hover kbd { border-color: rgba(255,255,255,.4); color: #fff; background: rgba(255,255,255,.12); }
.menu-sep { height: 1px; background: var(--line); margin: 5px 4px; }

.doc-title {
  width: 240px;
  margin-left: 14px;
  background: transparent;
  border: 1px solid transparent;
  font-size: 12.5px;
  color: var(--text);
}
.doc-title:hover { border-color: var(--line); background: var(--bg-3); }

.save-state {
  font-size: 11px;
  color: var(--text-3);
  margin-right: 10px;
  white-space: nowrap;
}

.top-tools { display: flex; gap: 2px; margin-right: 8px; }

.scale-select { width: 116px; }

/* ----------------------------------------------------------------- main */

#main {
  display: grid;
  grid-template-columns: var(--toolbar-w) 1fr var(--panel-w);
  min-height: 0;
}

/* ------------------------------------------------------------- toolbar */

#toolbar {
  background: var(--bg-2);
  border-right: 1px solid var(--line);
  overflow-y: auto;
  padding: 8px 6px 20px;
}

.tool-group { margin-bottom: 12px; }
.tool-group-name {
  font-size: 9.5px;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-3);
  padding: 4px 8px 5px;
}

.tool-btn {
  display: flex;
  align-items: center;
  gap: 9px;
  width: 100%;
  font: inherit;
  font-size: 12px;
  color: var(--text-2);
  background: none;
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 5px 8px;
  cursor: pointer;
  text-align: left;
}
.tool-btn:hover { background: var(--bg-4); color: var(--text); }
.tool-btn.active {
  background: color-mix(in srgb, var(--accent) 18%, var(--bg-3));
  border-color: color-mix(in srgb, var(--accent) 50%, transparent);
  color: var(--text);
}
.tool-btn .ico { color: currentColor; flex: 0 0 auto; }
.tool-label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* --------------------------------------------------------------- stage */

#stage {
  position: relative;
  overflow: hidden;
  background: var(--bg);
  touch-action: none;
  cursor: crosshair;
}
#stage.panning { cursor: grabbing; }

#scene, #overlay {
  position: absolute;
  inset: 0;
  display: block;
}
#overlay { pointer-events: none; }

#dyn-host { position: absolute; inset: 0; pointer-events: none; }

.dyn {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 5px;
  background: var(--bg-3);
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  pointer-events: auto;
  z-index: 20;
}
.dyn[hidden] { display: none; }
.dyn-row { display: flex; align-items: center; gap: 5px; }
.dyn-label { font-size: 10.5px; color: var(--text-3); }
.dyn-input {
  width: 74px;
  font-family: var(--mono);
  font-size: 12px;
  text-align: right;
  padding: 2px 5px;
  background: var(--bg-2);
}
.dyn-unit { font-size: 10.5px; color: var(--text-3); margin-right: 4px; }
.dyn-mode {
  font: inherit;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .03em;
  color: var(--text-2);
  background: var(--bg-4);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 3px 6px;
  cursor: pointer;
}
.dyn-mode:hover { color: var(--text); border-color: var(--line-2); }

/* ----------------------------------------------------------- statusbar */

#statusbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 10px;
  background: var(--bg-2);
  border-top: 1px solid var(--line);
  font-size: 11px;
  color: var(--text-2);
  overflow: hidden;
}
.st-coords { font-family: var(--mono); color: var(--text); white-space: nowrap; }
.st-snap { color: var(--gold); min-width: 90px; }
.st-hint {
  color: var(--text-3);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 52vw;
}
.st-sel { color: var(--accent); white-space: nowrap; font-family: var(--mono); }
.st-scale { font-family: var(--mono); white-space: nowrap; color: var(--text-3); }

.st-toggle {
  font: inherit;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--text-3);
  background: none;
  border: 1px solid transparent;
  border-radius: 4px;
  padding: 1px 6px;
  cursor: pointer;
}
.st-toggle:hover { background: var(--bg-4); }
.st-toggle.on {
  color: var(--accent);
  border-color: color-mix(in srgb, var(--accent) 45%, transparent);
  background: color-mix(in srgb, var(--accent) 14%, transparent);
}

/* ------------------------------------------------------------ responsive */

@media (max-width: 1180px) {
  :root { --panel-w: 292px; --toolbar-w: 46px; }
  .tool-label, .tool-group-name { display: none; }
  .tool-btn { justify-content: center; padding: 7px 0; }
  .doc-title { width: 150px; }
}

@media (max-width: 880px) {
  #main { grid-template-columns: 46px 1fr 0; }
  #panels { display: none; }
}