/* ------------------------------------------------------------------ *\
   Lienzo — Herramienta: Optimizador de SVG
   1. Zona de carga      4. Ajustes y plugins
   2. Espacio de trabajo 5. Acciones
   3. Vista previa       6. Responsive
\* ------------------------------------------------------------------ */

/* 1. Zona de carga --------------------------------------------------- */

.loader {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}

.dropzone {
  display: grid;
  place-items: center;
  gap: 0.9rem;
  padding: clamp(2rem, 6vw, 3.4rem) 1.5rem;
  border: 2px dashed var(--line-strong);
  border-radius: var(--radius-lg);
  background: var(--panel);
  text-align: center;
  cursor: pointer;
  transition: border-color 200ms ease, background-color 200ms ease, transform 200ms var(--ease);
}

.dropzone:hover,
.dropzone:focus-visible {
  border-color: var(--violeta);
  background: var(--panel-hover);
}

.dropzone[data-over="true"] {
  border-color: var(--turquesa);
  background: color-mix(in oklab, var(--turquesa) 10%, var(--panel));
  transform: scale(1.01);
}

.dropzone__icon {
  width: 46px;
  height: 46px;
  color: var(--violeta);
}

.dropzone__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.25rem;
}

.dropzone__hint {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.dropzone__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: center;
  margin-top: 0.3rem;
}

.paste {
  display: grid;
  gap: 0.5rem;
}

.paste textarea {
  width: 100%;
  min-height: 110px;
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-soft);
  color: var(--text);
  font: 0.85rem/1.6 var(--font-mono);
  resize: vertical;
}

.paste textarea:focus-visible {
  outline: 2px solid var(--violeta);
  outline-offset: 2px;
}

.error {
  margin: 0;
  padding: 0.8rem 1.1rem;
  border-radius: var(--radius);
  border: 1px solid color-mix(in oklab, var(--coral) 45%, transparent);
  background: color-mix(in oklab, var(--coral) 12%, transparent);
  color: var(--text);
  font-size: 0.92rem;
}

/* 2. Espacio de trabajo ---------------------------------------------- */

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 1.4rem;
  margin-top: 2rem;
  align-items: start;
}

.workspace[data-busy="true"] .panel { opacity: 0.65; }

.panel {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--panel);
  overflow: hidden;
  transition: opacity 180ms ease;
}

.panel__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  padding: 0.9rem 1.1rem;
  border-bottom: 1px solid var(--line);
}

.panel__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.05rem;
}

/* 3. Vista previa ----------------------------------------------------- */

.previews {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line);
}

.workspace[data-view="codigo"] .previews { display: none; }
.workspace[data-view="codigo"] .code-wrap { display: block; }
.workspace[data-view="comparar"] .code-wrap { display: none; }

.preview {
  display: grid;
  gap: 0.7rem;
  padding: 1.2rem;
  background: var(--panel);
  min-width: 0;
}

.preview__label {
  margin: 0;
  font: 700 0.72rem/1 var(--font-body);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--faint);
}

.preview__stage {
  display: grid;
  place-items: center;
  min-height: 220px;
  padding: 1rem;
  border-radius: var(--radius);
  /* Damero: deja ver la transparencia real del SVG */
  background-image:
    linear-gradient(45deg, var(--line) 25%, transparent 25%),
    linear-gradient(-45deg, var(--line) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, var(--line) 75%),
    linear-gradient(-45deg, transparent 75%, var(--line) 75%);
  background-size: 18px 18px;
  background-position: 0 0, 0 9px, 9px -9px, -9px 0;
}

.preview__stage img {
  max-width: 100%;
  max-height: 260px;
}

.preview__fail {
  margin: 0;
  color: var(--coral);
  font-size: 0.88rem;
  text-align: center;
}

.code-wrap { display: none; }

.code-wrap pre {
  margin: 0;
  padding: 1.1rem 1.2rem;
  max-height: 460px;
  overflow: auto;
  background: var(--code-bg);
  color: #e9e6ff;
  font: 0.82rem/1.6 var(--font-mono);
  white-space: pre-wrap;
  word-break: break-word;
}

/* Estadísticas */

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 0.9rem;
  padding: 1.1rem;
  border-top: 1px solid var(--line);
}

.stat { display: grid; gap: 0.2rem; min-width: 0; }

.stat__label {
  font: 700 0.68rem/1 var(--font-body);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--faint);
}

.stat__value {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-variant-numeric: tabular-nums;
}

.stat__value--win { color: var(--turquesa); }
.stat__value--win[data-negative="true"] { color: var(--coral); }

.stat__value--small {
  font-family: var(--font-body);
  font-size: 0.92rem;
  color: var(--muted);
}

.saved-bar {
  grid-column: 1 / -1;
  height: 8px;
  border-radius: 999px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  overflow: hidden;
}

.saved-bar::after {
  content: "";
  display: block;
  height: 100%;
  width: var(--saved, 0%);
  border-radius: 999px;
  background: linear-gradient(90deg, var(--violeta), var(--turquesa));
  transition: width 320ms var(--ease);
}

/* 4. Ajustes y plugins ------------------------------------------------ */

.sidebar {
  display: grid;
  gap: 1.2rem;
  position: sticky;
  top: 84px;
}

.settings {
  display: grid;
  gap: 1rem;
  padding: 1.1rem;
}

.field { display: grid; gap: 0.45rem; font-size: 0.9rem; }

.field__label {
  display: flex;
  justify-content: space-between;
  gap: 0.6rem;
  color: var(--muted);
  font-weight: 600;
}

.field__label output {
  color: var(--violeta);
  font-variant-numeric: tabular-nums;
}

.field input[type="range"] { width: 100%; accent-color: var(--violeta); }

.field__hint { color: var(--faint); font-size: 0.8rem; }

.switch {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.9rem;
  cursor: pointer;
}

.switch input { margin-top: 0.2rem; accent-color: var(--violeta); flex: 0 0 auto; }

.switch span { display: grid; gap: 0.15rem; }

.switch small { color: var(--faint); font-size: 0.79rem; }

.plugins { padding: 1.1rem; display: grid; gap: 0.8rem; }

.plugins__actions { display: flex; flex-wrap: wrap; gap: 0.4rem; }

.plugins__actions button {
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bg-soft);
  color: var(--muted);
  font: 600 0.78rem var(--font-body);
  cursor: pointer;
  transition: color 160ms ease, border-color 160ms ease;
}

.plugins__actions button:hover { color: var(--text); border-color: var(--line-strong); }

.plugins__group { display: grid; gap: 0.15rem; max-height: 300px; overflow-y: auto; padding-right: 0.3rem; }

.plugins__legend {
  font: 700 0.7rem/1 var(--font-body);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--faint);
  margin: 0.4rem 0 0.35rem;
}

.plugin {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  padding: 0.42rem 0.5rem;
  border-radius: 9px;
  cursor: pointer;
  transition: background-color 140ms ease;
}

.plugin:hover { background: var(--panel-hover); }

.plugin input { margin-top: 0.25rem; accent-color: var(--violeta); flex: 0 0 auto; }

.plugin__text { display: grid; gap: 0.1rem; min-width: 0; }

.plugin__name {
  font: 600 0.82rem var(--font-mono);
  color: var(--text);
  word-break: break-word;
}

.plugin__desc { color: var(--faint); font-size: 0.76rem; line-height: 1.45; }

/* 5. Acciones --------------------------------------------------------- */

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  padding: 1.1rem;
  border-top: 1px solid var(--line);
}

.actions .btn { flex: 1 1 auto; justify-content: center; }

.segmented {
  display: inline-flex;
  gap: 0.2rem;
  padding: 0.25rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bg-soft);
}

.segmented label {
  position: relative;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font: 600 0.84rem var(--font-body);
  color: var(--muted);
  cursor: pointer;
  transition: color 160ms ease, background-color 160ms ease;
}

.segmented input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.segmented label:has(input:checked) {
  background: var(--violeta);
  color: #fff;
}

.segmented label:has(input:focus-visible) {
  outline: 2px solid var(--violeta);
  outline-offset: 2px;
}

.tool-note {
  margin-top: 1.4rem;
  color: var(--faint);
  font-size: 0.84rem;
  text-align: center;
}

.tool-note code { font-family: var(--font-mono); }

/* 6. Responsive -------------------------------------------------------- */

@media (max-width: 1000px) {
  .workspace { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .plugins__group { max-height: 240px; }
}

@media (max-width: 620px) {
  .previews { grid-template-columns: 1fr; }
  .actions .btn { flex-basis: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  .dropzone,
  .saved-bar::after { transition: none; }
}