.handwriting-host {
  display: grid;
  justify-items: start;
  gap: 12px;
  margin: -4px 0 18px;
}

.handwriting-launcher {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
}

.handwriting-launcher > span:first-child {
  font-size: 1.2rem;
}

.handwriting-panel {
  position: fixed;
  z-index: 10000;
  inset: 0;
  width: auto;
  max-width: 100%;
  height: 100dvh;
  overflow: hidden;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  justify-items: center;
  gap: clamp(8px, 1vw, 12px);
  padding: clamp(8px, 1vw, 14px) clamp(14px, 1.75vw, 24px);
  background: linear-gradient(145deg, #eaf4ff, #f8fbff 55%, #e9f8f7);
}

.handwriting-panel[hidden] {
  display: none;
}

.handwriting-brand-header {
  width: min(1320px, 100%);
  margin: 0 auto;
}

.handwriting-workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  width: min(1320px, 100%);
  height: 100%;
  min-height: 0;
  margin: 0 auto;
}

.handwriting-work-area {
  display: grid;
  grid-template-rows: auto auto minmax(240px, 1fr) auto auto auto;
  min-width: 0;
  max-width: 100%;
  min-height: 0;
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
  border: 2px solid #9fc5ef;
  border-radius: 22px;
  background: #f7fbff;
  box-shadow: 0 16px 34px rgba(20, 68, 126, 0.16);
}

.handwriting-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px 8px;
}

.handwriting-panel-head > div {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.handwriting-panel-head strong {
  color: #0b3474;
  font-size: 1.15rem;
}

.handwriting-panel-head small,
.handwriting-status {
  color: #52637e;
}

.handwriting-external-feedback-slot:empty {
  display: none;
}

.handwriting-external-feedback-slot {
  margin: 12px 16px 4px;
}

.handwriting-external-feedback-slot .phase2c-classification {
  border: 2px solid #b9d8f6;
  background: #f7fbff;
  box-shadow: 0 8px 22px rgba(23, 78, 139, 0.1);
}

.handwriting-external-feedback-slot .phase2c-rendered-math {
  display: inline-block;
  min-height: 2.5rem;
  margin-left: 8px;
  font-size: 1.2rem;
  line-height: 1.35;
  vertical-align: middle;
}

.handwriting-sticky-head {
  position: sticky;
  top: 0;
  z-index: 5;
  display: grid;
  gap: 8px;
  min-width: 0;
  padding: 0 14px 10px;
  background: #f7fbff;
}

.handwriting-statement {
  min-width: 0;
  max-height: 34dvh;
  overflow-x: hidden;
  overflow-y: auto;
  padding: 12px 15px;
  border: 1px solid #bdd4eb;
  border-radius: 14px;
  background: #ffffff;
  box-shadow: 0 4px 12px rgba(20, 68, 126, 0.08);
}

.handwriting-statement-label {
  display: block;
  margin-bottom: 5px;
  color: #155fbd;
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.handwriting-statement-content {
  display: grid;
  gap: 7px;
  min-width: 0;
  color: #15233b;
}

.handwriting-statement-content .question-meta {
  margin: 0;
}

.handwriting-statement-content .question-text {
  position: static !important;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
  max-width: 100%;
  min-width: 0;
  overflow-wrap: anywhere;
}

.handwriting-statement-content img,
.handwriting-statement-content svg,
.handwriting-statement-content table,
.handwriting-statement-content canvas {
  max-width: 100%;
}

.handwriting-toolbar {
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  gap: clamp(3px, 0.42vw, 6px);
  min-width: 0;
  max-width: 100%;
  overflow: hidden;
  padding: 7px;
  border: 1px solid #c7dcf3;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.96);
}

.handwriting-tool,
.handwriting-toolbar .ghost,
.handwriting-thickness select {
  flex: 0 1 auto;
  min-width: 0;
  min-height: 36px;
  padding: 6px clamp(5px, 0.55vw, 9px);
  border: 1px solid #b9cce3;
  border-radius: 10px;
  color: #17375e;
  background: #ffffff;
  font: inherit;
  font-size: clamp(0.7rem, 0.72vw, 0.84rem);
  font-weight: 800;
  white-space: nowrap;
}

.handwriting-tool.is-active {
  border-color: #155fbd;
  color: #ffffff;
  background: #155fbd;
  box-shadow: 0 3px 0 #0b438c;
}

.handwriting-toolbar button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.handwriting-clear-confirmation {
  display: flex;
  align-items: center;
  align-self: flex-end;
  gap: 8px;
  width: fit-content;
  max-width: calc(100% - 14px);
  margin: 7px 7px 0;
  padding: 8px 10px;
  border: 1px solid #f0a6a6;
  border-radius: 12px;
  color: #5f1b1b;
  background: #fff5f5;
  box-shadow: 0 5px 14px rgba(72, 25, 25, 0.14);
  font-size: 0.82rem;
  font-weight: 750;
}

.handwriting-clear-confirmation[hidden] {
  display: none;
}

.handwriting-clear-confirmation button {
  min-height: 34px;
  padding: 6px 10px;
  border-radius: 9px;
  font: inherit;
  white-space: nowrap;
}

.handwriting-clear-confirmation .danger {
  border: 1px solid #b42318;
  color: #ffffff;
  background: #b42318;
}

.handwriting-clear-confirmation .ghost {
  border: 1px solid #b9cce3;
  color: #17375e;
  background: #ffffff;
}

.handwriting-thickness {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 3px;
  color: #334e70;
  font-size: clamp(0.7rem, 0.72vw, 0.82rem);
  font-weight: 800;
  white-space: nowrap;
}

.handwriting-expand {
  margin-left: auto;
  border-color: #73a7dd !important;
  color: #0b4f9a !important;
  background: #eaf4ff !important;
}

.handwriting-panel.is-expanded .handwriting-close {
  display: none;
}

.handwriting-scroll-area {
  min-width: 0;
  min-height: 0;
  margin: 0 14px;
  overflow-x: hidden;
  overflow-y: auto;
  border: 2px solid #b8cce3;
  border-radius: 14px;
  background: #dceafa;
  box-shadow: inset 0 2px 8px rgba(20, 43, 88, 0.08);
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
}

.handwriting-canvas-wrap {
  position: relative;
  width: 100%;
  min-width: 0;
  /* La altura la calcula resizeCanvas con la misma escala uniforme que
     utiliza el contexto 2D. Un mínimo fijo deformaba el eje vertical en
     pantallas estrechas y desplazaba la tinta por debajo del Surface Pen. */
  min-height: 0;
  background-color: #ffffff;
  background-image:
    linear-gradient(#dceafa 1px, transparent 1px),
    linear-gradient(90deg, #dceafa 1px, transparent 1px);
  background-size: 24px 24px;
}

.handwriting-canvas {
  position: absolute;
  z-index: 2;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  cursor: crosshair;
  touch-action: none;
}

.handwriting-empty-hint {
  position: absolute;
  z-index: 1;
  top: 18px;
  left: 18px;
  max-width: calc(100% - 36px);
  margin: 0;
  color: #7890aa;
  font-size: 0.92rem;
  pointer-events: none;
}

.handwriting-host.has-handwriting .handwriting-empty-hint {
  display: none;
}

.handwriting-status {
  min-height: 1.35em;
  margin: 0;
  padding: 7px 16px 10px;
  font-size: 0.86rem;
  font-weight: 700;
}

body.handwriting-mode-open {
  height: 100dvh !important;
  overflow: hidden !important;
}

.handwriting-panel.is-expanded {
  padding: 0;
  background: #f7fbff;
}

.handwriting-panel.is-expanded .handwriting-workspace {
  grid-template-columns: minmax(0, 1fr);
}

.handwriting-panel.is-expanded .handwriting-work-area {
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

.handwriting-panel.is-expanded .handwriting-statement {
  max-height: 27dvh;
}

@media (max-width: 900px) {
  .handwriting-workspace {
    grid-template-columns: minmax(0, 1fr);
  }

  .handwriting-toolbar {
    padding-bottom: 10px;
  }
}

@media (max-width: 720px) {
  .handwriting-panel {
    padding: 0;
  }

  .handwriting-workspace {
    grid-template-columns: minmax(0, 1fr);
  }

  .handwriting-toolbar {
    flex-wrap: wrap;
    overflow: visible;
  }

  .handwriting-work-area {
    border: 0;
    border-radius: 0;
  }

  .handwriting-panel-head {
    align-items: stretch;
    padding: 9px 10px 6px;
  }

  .handwriting-panel-head small {
    display: none;
  }

  .handwriting-sticky-head {
    padding: 0 9px 8px;
  }

  .handwriting-statement {
    max-height: 30dvh;
    padding: 9px 11px;
  }

  .handwriting-scroll-area {
    margin: 0 9px;
  }

  .handwriting-status {
    padding-inline: 11px;
  }
}

@media (max-width: 480px) {
  .handwriting-panel-head {
    display: grid;
    grid-template-columns: 1fr auto;
  }

  .handwriting-panel-head strong {
    font-size: 1rem;
  }

  .handwriting-close {
    padding-inline: 8px;
    font-size: 0.78rem;
  }

  .handwriting-tool,
  .handwriting-toolbar .ghost,
  .handwriting-thickness select {
    min-height: 36px;
    padding: 6px 8px;
    font-size: 0.78rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .handwriting-scroll-area,
  .handwriting-statement {
    scroll-behavior: auto;
  }
}

.handwriting-recognition-confirmation {
  display: grid;
  gap: 10px;
  margin: 0 14px 10px;
  padding: 14px 16px;
  border: 2px solid #b8d6f2;
  border-radius: 18px;
  background: #f8fcff;
}

.handwriting-recognition-confirmation[hidden] { display: none; }
.handwriting-recognition-confirmation > strong { color: #0b4f8a; }
.handwriting-recognized-expression { min-height: 48px; padding: 10px; border-radius: 12px; background: #fff; font-size: 1.3rem; }
.handwriting-recognition-message { margin: 0; color: #526680; }
.handwriting-recognition-actions { display: flex; flex-wrap: wrap; gap: 10px; }