/* PCAPro — Análisis de Componentes Principales
   Hoja de estilo propia. Los neutros, las escalas, el enfoque, la barra
   superior, la barra de bloques, los botones, los mensajes y la impresión
   vienen de labg-base.css (común a la LABG Suite); aquí solo va la identidad
   de PCAPro y lo que es suyo. */

/* identidad: violeta de PCAPro y turquesa de acento (en oscuro, --primary-dark
   es el tono MÁS CLARO: se usa para texto y para el botón al pasar el ratón) */
:root {
  --primary-rgb: 91, 63, 214; --primary: #5b3fd6; --primary-dark: #4629b8;
  --accent-rgb: 13, 148, 136; --accent: #0d9488;
  --radius: 12px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --primary-rgb: 139, 111, 242; --primary: #8b6ff2; --primary-dark: #ab98f6;
    --accent-rgb: 45, 212, 191; --accent: #2dd4bf;
  }
}
:root[data-theme="dark"] {
  --primary-rgb: 139, 111, 242; --primary: #8b6ff2; --primary-dark: #ab98f6;
  --accent-rgb: 45, 212, 191; --accent: #2dd4bf;
}

main { max-width: 1140px; margin: 0 auto; padding: 0 20px 80px; }
.topbar-inner { max-width: 1140px; }
.brand-mark { width: 30px; height: 30px; border-radius: 8px; display: block; }
.brand-name { font-size: 1.16rem; font-weight: 700; letter-spacing: -0.5px; }
.brand-name .dot { color: var(--primary-text); }
.step-panel { padding-top: 18px; }

.badge {
  font-size: 0.72rem; padding: 3px 10px; border-radius: 999px;
  background: var(--card-bg); border: 1px solid var(--border); color: var(--text-muted);
}
.badge-row { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; margin-top: 12px; }

/* ---------- Tarjetas ---------- */
.card {
  background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px 26px; margin-bottom: 20px; box-shadow: var(--shadow);
}
.card h2 { margin: 0 0 4px; font-size: 1.24rem; letter-spacing: -0.3px; }
.card h3 { font-size: 1.02rem; margin: 18px 0 6px; }
.card h4 {
  font-size: 0.78rem; margin: 0 0 8px; text-transform: uppercase;
  letter-spacing: 0.06em; color: var(--text-muted); font-weight: 700;
}
.hint { color: var(--text-muted); font-size: 0.88rem; margin: 4px 0 12px; }
.step-panel { display: none; }
.step-panel.active { display: block; }
.card-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

/* ---------- Teoría (acordeón) ---------- */
.theory-card { border-left: 3px solid var(--primary); }
.acc { border-top: 1px solid var(--border); }
.acc:first-of-type { border-top: none; }
.acc > summary {
  cursor: pointer; padding: 12px 4px; font-weight: 600; font-size: 0.95rem;
  list-style: none; display: flex; align-items: center; gap: 10px;
}
.acc > summary::-webkit-details-marker { display: none; }
.acc > summary::before {
  content: "▸"; color: var(--primary-text); font-size: 0.85rem; transition: transform .15s;
  display: inline-block; width: 12px;
}
.acc[open] > summary::before { transform: rotate(90deg); }
.acc > summary:hover { color: var(--primary-text); }
.acc .acc-body { padding: 2px 4px 18px 26px; font-size: 0.9rem; }
.acc .acc-body p { margin: 0 0 10px; }
.acc .acc-body ul, .acc .acc-body ol { margin: 0 0 12px; padding-left: 20px; }
.acc .acc-body li { margin-bottom: 6px; }
.acc .acc-body table { margin: 8px 0 14px; display: block; max-width: 100%; overflow-x: auto; }   /* tablas anchas de la teoría: se desplazan dentro de su caja */

.formula {
  font-family: var(--mono); background: var(--bg-soft); border: 1px solid var(--border);
  border-radius: 8px; padding: 10px 14px; margin: 10px 0; font-size: 0.86rem;
  overflow-x: auto; white-space: pre; line-height: 1.7;
}
code {
  font-family: var(--mono); background: var(--bg-soft); padding: 1px 5px;
  border-radius: 4px; font-size: 0.86em;
}
.callout {
  border-left: 3px solid var(--accent); background: var(--bg-soft);
  padding: 10px 14px; border-radius: 0 8px 8px 0; margin: 12px 0; font-size: 0.88rem;
}
.callout.warn { border-left-color: var(--warning); }
.callout.crit { border-left-color: var(--danger); }
.callout b:first-child { display: block; margin-bottom: 2px; }

/* ---------- Formularios ---------- */
input[type=text], input[type=number], select, textarea {
  padding: 8px 11px; border-radius: 8px; border: 1px solid var(--border-strong);
  background: var(--card-bg); color: var(--text); font-size: 0.9rem;
  max-width: 100%; font-family: inherit;
}
input[type=color] {
  width: 42px; height: 30px; padding: 2px; border-radius: 6px;
  border: 1px solid var(--border-strong); background: var(--card-bg); cursor: pointer;
}
.btn-row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin: 14px 0 0; }
.inline-label {
  font-size: 0.88rem; color: var(--text-muted);
  display: inline-flex; gap: 7px; align-items: center; flex-wrap: wrap;
}
.checkbox-label { display: flex; align-items: center; gap: 8px; font-size: 0.9rem; cursor: pointer; margin-bottom: 6px; }
.checkbox-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 4px 16px; }
.field-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 14px; margin: 10px 0; }
.field { display: flex; flex-direction: column; gap: 5px; }
.field > label { font-size: 0.8rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.04em; }
.field > .field-help { font-size: 0.78rem; color: var(--text-muted); }

/* ---------- Zona de arrastre ---------- */
.drop-zone {
  border: 2px dashed var(--border-strong); border-radius: var(--radius);
  padding: 38px 20px; text-align: center; cursor: pointer;
  background: var(--bg-soft); transition: border-color .15s, background .15s;
}
.drop-zone:hover, .drop-zone.dragover { border-color: var(--primary); background: var(--primary-soft); }
.drop-zone .dz-icon { font-size: 2rem; color: var(--primary-text); line-height: 1; margin-bottom: 6px; }
.drop-zone p { margin: 4px 0; font-size: 0.92rem; }

/* ---------- Mensajes ---------- */
.messages { margin-top: 14px; }

/* ---------- Tablas ---------- */
.table-scroll { overflow-x: auto; border: 1px solid var(--border); border-radius: 10px; }
table { border-collapse: collapse; width: 100%; font-size: 0.86rem; }
thead th {
  background: var(--bg-soft); text-align: left; padding: 9px 12px; font-weight: 600;
  border-bottom: 1px solid var(--border); white-space: nowrap; position: sticky; top: 0;
}
tbody td { padding: 7px 12px; border-bottom: 1px solid var(--border); white-space: nowrap; }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--bg-soft); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }

/* ---------- Mosaicos de estadísticos ---------- */
.results-summary { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin: 16px 0; }
.stat-tile { background: var(--bg-soft); border-radius: 10px; padding: 12px 16px; }
.stat-tile .stat-label { font-size: 0.7rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; font-weight: 600; }
.stat-tile .stat-value { font-size: 1.35rem; font-weight: 700; margin-top: 2px; line-height: 1.2; }
.stat-tile .stat-sub { font-size: 0.75rem; color: var(--text-muted); }
.stat-tile.ok { box-shadow: inset 3px 0 0 var(--success); }
.stat-tile.warn { box-shadow: inset 3px 0 0 var(--warning); }
.stat-tile.bad { box-shadow: inset 3px 0 0 var(--danger); }

/* ---------- Configurador de variables ---------- */
.var-table td { white-space: nowrap; }
.var-table select { padding: 5px 8px; font-size: 0.82rem; border-radius: 6px; }
.var-name { font-weight: 600; }
.pill {
  display: inline-block; font-size: 0.7rem; padding: 2px 8px; border-radius: 999px;
  background: var(--bg-soft); border: 1px solid var(--border); color: var(--text-muted);
}
.pill.num { background: rgba(var(--accent-rgb), 0.12); border-color: rgba(var(--accent-rgb), 0.35); color: var(--text); }
.pill.cat { background: var(--warning-soft); border-color: var(--warning); color: var(--warning-text); }
.pill.id  { background: var(--primary-soft); border-color: rgba(var(--primary-rgb), 0.25); color: var(--primary-text); }
.pill.off { opacity: 0.6; }
.flag { font-size: 0.74rem; color: var(--warning-text); }
.flag.bad { color: var(--danger-text); }
.flag.ok { color: var(--success-text); }

/* Miniatura de distribución dentro de la tabla de variables */
.spark { display: block; }

/* ---------- Tarjetas de opción (radio) ---------- */
.opt-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 10px; margin: 10px 0 4px; }
.opt-card {
  border: 1px solid var(--border-strong); border-radius: 10px; padding: 12px 14px;
  cursor: pointer; display: block; transition: border-color .15s, background .15s;
}
.opt-card:hover { border-color: var(--primary); }
.opt-card input { margin-right: 8px; }
.opt-card .opt-title { font-weight: 600; font-size: 0.9rem; }
.opt-card .opt-desc { font-size: 0.79rem; color: var(--text-muted); margin-top: 3px; display: block; }
.opt-card.selected { border-color: var(--primary); background: var(--primary-soft); }

/* ---------- Diagnóstico ---------- */
.check-list { list-style: none; padding: 0; margin: 10px 0 0; }
.check-item {
  display: flex; gap: 12px; padding: 12px 14px; border-radius: 10px;
  border: 1px solid var(--border); margin-bottom: 8px; background: var(--card-bg);
  align-items: flex-start;
}
.check-item .ck-icon { font-size: 1.1rem; line-height: 1.3; flex-shrink: 0; width: 22px; text-align: center; }
.check-item .ck-body { flex: 1; min-width: 0; }
.check-item .ck-title { font-weight: 600; font-size: 0.92rem; }
.check-item .ck-text { font-size: 0.85rem; color: var(--text-muted); }
.check-item .ck-text b { color: var(--text); }
.check-item.ok { border-left: 3px solid var(--success); }
.check-item.warn { border-left: 3px solid var(--warning); }
.check-item.bad { border-left: 3px solid var(--danger); }
.check-item.info { border-left: 3px solid var(--primary); }

.verdict {
  display: flex; align-items: center; gap: 18px; padding: 18px 22px;
  border-radius: var(--radius); background: var(--bg-soft); margin: 4px 0 16px; flex-wrap: wrap;
}
.verdict .grade {
  font-size: 2.6rem; font-weight: 800; line-height: 1; min-width: 74px; text-align: center;
}
.verdict .grade small { display: block; font-size: 0.66rem; font-weight: 600; letter-spacing: .08em; color: var(--text-muted); text-transform: uppercase; }
.verdict .v-text { flex: 1; min-width: 240px; font-size: 0.92rem; }
.grade.g-a { color: var(--success); } .grade.g-b { color: var(--accent-text); }
.grade.g-c { color: var(--warning); } .grade.g-d { color: var(--danger); }

/* ---------- Figuras ---------- */
.fig-block { border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; margin: 14px 0; background: var(--card-bg); }
.fig-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 8px; }
.fig-head h4 { margin: 0; }
.fig-canvas { overflow-x: auto; text-align: center; background: var(--card-bg); border-radius: 8px; }
.fig-canvas svg { max-width: 100%; height: auto; }
.fig-tools {
  display: flex; gap: 8px; align-items: center; flex-wrap: wrap;
  border-top: 1px dashed var(--border); margin-top: 10px; padding-top: 10px;
}
.fig-tools .inline-label { font-size: 0.8rem; }
.fig-tools select { padding: 5px 8px; font-size: 0.8rem; }
.fig-opts {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px; padding: 10px 0 0; border-top: 1px dashed var(--border); margin-top: 10px;
}
.fig-opts .inline-label { font-size: 0.8rem; }
.fig-opts input[type=range] { flex: 1; min-width: 90px; }
.range-val {
  font-family: var(--mono); font-size: 0.74rem; color: var(--text);
  background: var(--bg-soft); border-radius: 5px; padding: 1px 5px; min-width: 34px; text-align: center;
}
details.fig-editor > summary { cursor: pointer; font-size: 0.82rem; color: var(--primary-text); padding: 4px 0; }

/* ---------- Varios ---------- */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 820px) { .two-col { grid-template-columns: 1fr; } }
.divider { height: 1px; background: var(--border); margin: 20px 0; border: none; }
.tag-list { display: flex; flex-wrap: wrap; gap: 6px; margin: 8px 0; }
.footer-note { text-align: center; color: var(--text-muted); font-size: 0.8rem; padding: 10px 20px 40px; }
.loading { display: inline-block; width: 14px; height: 14px; border: 2px solid var(--border-strong); border-top-color: var(--primary); border-radius: 50%; animation: spin .8s linear infinite; vertical-align: -2px; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- selector de idioma ---------- */
.lang-bar {
  max-width: 1140px; margin: 0 auto; padding: 10px 20px 0;
  display: flex; justify-content: flex-end;
}
.lang-bar select { padding: 4px 8px; font-size: 0.82rem; }

.cite-ref {
  background: var(--bg-soft, #f5f6fa); border-radius: 8px; padding: 10px 14px;
  font-size: .9rem; line-height: 1.5; text-indent: -1.6em; margin-left: 1.6em;
}

#citeDialog {
  max-width: 620px; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px 24px; background: var(--card-bg); color: var(--text); box-shadow: var(--shadow);
}
#citeDialog h3 { margin: 0 0 6px; }
#citeDialog::backdrop { background: rgba(0, 0, 0, .38); }

/* El botón «Cómo citar» del bloque 1 va a la derecha del título cuando cabe, y
   baja debajo en pantallas estrechas (card-head ya trae flex-wrap). */
.theory-card .card-head > div { flex: 1 1 320px; }
.theory-card .card-head > #citeBtn { margin-left: auto; flex: 0 0 auto; }

/* ============================================================
   Bloque de entrada (panel-0): barra compacta, portada y tarjetas
   ============================================================ */

.hero {
  position: relative; overflow: hidden; border-radius: 22px; margin: 20px 0 26px;
  background:
    radial-gradient(1100px 460px at 10% -12%, var(--primary-soft), transparent 62%),
    radial-gradient(760px 380px at 96% 6%, rgba(13, 148, 136, 0.13), transparent 62%),
    linear-gradient(180deg, var(--card-bg), var(--bg-soft));
  border: 1px solid var(--border); box-shadow: var(--shadow);
}
.hero-inner {
  display: grid; grid-template-columns: 1.02fr 1fr; gap: 26px;
  align-items: center; padding: 46px 44px 38px;
}
.hero h1 { font-size: 2.85rem; line-height: 1.06; margin: 0 0 14px; letter-spacing: -1.4px; font-weight: 800; }
.hero h1 .accent { color: var(--primary-text); }
.hero .lead { font-size: 1.1rem; color: var(--text-muted); margin: 0 0 22px; max-width: 580px; }
.hero .lead b { color: var(--text); font-weight: 600; }
.hero .badge-row { justify-content: flex-start; margin-top: 18px; }
.hero-cta { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.hero-art svg { width: 100%; height: auto; display: block; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 9px; margin-bottom: 14px;
  font-size: 0.72rem; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--primary-text);
}
.eyebrow::before { content: ""; width: 26px; height: 2px; background: var(--primary); border-radius: 2px; }

.art-card { fill: var(--card-bg); stroke: var(--border); }
.art-ax { stroke: var(--border-strong); stroke-width: 1; fill: none; }
.art-mut { fill: var(--text-muted); }

.section-title { font-size: 1.45rem; letter-spacing: -0.5px; margin: 38px 0 6px; }
.section-sub { color: var(--text-muted); margin: 0 0 18px; max-width: 820px; }

.workflow { display: flex; align-items: stretch; overflow-x: auto; padding: 4px 0 10px; }
.wf-step {
  flex: 1; min-width: 150px; padding: 12px 15px; cursor: pointer;
  background: var(--card-bg); border: 1px solid var(--border);
}
.wf-step + .wf-step { border-left: none; }
.wf-step:first-child { border-radius: 10px 0 0 10px; }
.wf-step:last-child { border-radius: 0 10px 10px 0; }
.wf-step:hover { background: var(--primary-soft); }
.wf-n { font-size: 0.66rem; color: var(--primary-text); font-weight: 700; letter-spacing: .09em; }
.wf-t { font-weight: 600; font-size: 0.86rem; margin: 2px 0 1px; }
.wf-d { font-size: 0.74rem; color: var(--text-muted); }

.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(310px, 1fr)); gap: 14px; }
.feat {
  display: flex; gap: 14px; align-items: flex-start; text-align: left; cursor: pointer;
  padding: 16px 18px; border-radius: var(--radius);
  background: var(--card-bg); border: 1px solid var(--border); color: inherit;
  font: inherit; transition: border-color .15s, transform .15s;
}
.feat:hover { border-color: var(--primary); transform: translateY(-2px); }
.feat-n {
  flex: 0 0 auto; width: 28px; height: 28px; border-radius: 8px;
  display: grid; place-items: center; font-size: 0.82rem; font-weight: 700;
  background: var(--primary-soft); color: var(--primary-text);
}
.feat-t { display: block; font-weight: 600; margin-bottom: 3px; }
.feat-d { display: block; font-size: 0.83rem; color: var(--text-muted); line-height: 1.5; }

.closing {
  display: grid; grid-template-columns: 1.5fr 1fr; gap: 22px; align-items: start;
  margin: 40px 0 10px; padding: 24px 26px;
  background: var(--bg-soft); border: 1px solid var(--border); border-radius: var(--radius);
}
.closing h3 { margin: 0 0 8px; font-size: 1.06rem; }
.closing p { margin: 0; color: var(--text-muted); font-size: 0.92rem; line-height: 1.62; }
.cite-label { font-size: 0.72rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--primary-text); margin-bottom: 8px; }
.closing-cite .cite-ref { font-size: 0.8rem; margin-bottom: 10px; }

@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; padding: 30px 22px; }
  .hero h1 { font-size: 2.1rem; }
  .closing { grid-template-columns: 1fr; }
}

/* ============================================================
   Card 1.9 · elección del método
   ============================================================ */
.met-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 12px; margin: 10px 0 14px; }
.met {
  display: flex; flex-direction: column; gap: 6px; text-align: left; cursor: pointer;
  padding: 14px 16px; border-radius: var(--radius); font: inherit; color: inherit;
  background: var(--card-bg); border: 1.5px solid var(--border); transition: border-color .15s, transform .15s;
}
.met:hover:not([disabled]) { border-color: var(--primary); transform: translateY(-1px); }
.met.sel { border-color: var(--primary); background: var(--primary-soft); box-shadow: 0 0 0 3px var(--primary-soft); }
.met[disabled] { opacity: .55; cursor: not-allowed; }
.met-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.met-sigla { font-weight: 800; letter-spacing: .04em; color: var(--primary-text); }
.met-nombre { font-weight: 600; font-size: .92rem; }
.met-razon { font-size: .8rem; color: var(--text-muted); line-height: 1.5; }
.pill.mut { background: var(--bg-soft); color: var(--text-muted); border-color: var(--border); }
.chk-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 6px 14px; margin: 8px 0; }
.chk-grid .mut { color: var(--text-muted); font-size: .82rem; }
table.mini { font-size: .86rem; }
table.mini input[type=text] { width: 140px; padding: 3px 8px; }
#metodoConfig { margin-top: 12px; }

/* Bloque 5 de los otros métodos: lectura de cada eje */
.eje-box { padding: 12px 0; border-top: 1px solid var(--border); }
.eje-box:first-child { border-top: none; }
.eje-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 6px; }
.eje-dim { font-weight: 700; color: var(--primary-text); }
.eje-head .mut { color: var(--text-muted); font-size: .84rem; }
.ejeNombre { flex: 1; min-width: 200px; padding: 4px 10px; }
.eje-box p { margin: 0; font-size: .9rem; line-height: 1.6; }
.eje-box .mut { color: var(--text-muted); }