/* ============================================================
 * theme.css — TEMA de la guía de CUERPOS GEOMÉTRICOS (capa LIBRE).
 * Leyenda (cara/arista/vértice), dibujo de sólidos por SVG, pares, y los
 * widgets por toque: visor 3D (área/volumen en vivo + desarrollo plano) y
 * contador de Euler. Andamiaje en assets/guia-components.css; variables --guia-*.
 * Prefijo propio del tema: `cg-`. No se redefinen clases `guia-*`.
 * ============================================================ */

/* ===== Reaseguro de longitud en el hero ===== */
.guia-reassure { font-size: 15px; line-height: 1.5; color: var(--guia-muted); margin: 2px 0 0; }

/* ===== Leyenda de color ===== */
.cg-legend { display: flex; gap: 14px 18px; flex-wrap: wrap; align-items: center; background: #fff; border: 1.5px solid var(--guia-line); border-radius: 12px; padding: 10px 14px; font-size: 15px; font-weight: 600; }
.cg-legend .it { display: flex; gap: 8px; align-items: center; }
.cg-legend .it b { font-weight: 800; }
.cg-legend .sw { width: 17px; height: 17px; border-radius: 4px; flex: 0 0 auto; }
.cg-legend .sw.face { background: rgba(40, 56, 145, .12); border: 2px solid var(--guia-navy); }
.cg-legend .sw.edge { background: var(--guia-navy); border: 2px solid var(--guia-navy); }
.cg-legend .sw.vtx { background: var(--guia-ink); border: 2px solid var(--guia-ink); border-radius: 50%; }
.cg-legend .sw.hidden { background: #fff; border: 2px dashed var(--guia-muted); }

/* ===== Dibujo del sólido (SVG estático) ===== */
.cg-visual { display: flex; flex-direction: column; align-items: center; gap: 6px; margin: 2px 0; }
.cg-visual .vcap { font-size: 15px; font-weight: 700; color: var(--guia-muted); text-align: center; max-width: 44ch; }
/* Ancho RESUELTO (viewBox + max-width): el dibujo nunca colapsa a "astilla". */
.cg-svg { width: 100%; max-width: 270px; height: auto; display: block; }

/* Comparativa de dos sólidos lado a lado */
.cg-pair { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.cg-pair figure { margin: 0; display: flex; flex-direction: column; align-items: center; gap: 4px; }
.cg-pair .cg-svg { max-width: 156px; }
.cg-pair figcaption { font-size: 14px; font-weight: 700; color: var(--guia-muted); text-align: center; max-width: 22ch; }

/* Dibujo dentro de un ejercicio (guiado/serie): más compacto */
.guia-pitem .cg-visual { align-items: flex-start; margin: 8px 0 4px; }
.guia-pitem .cg-visual .vcap { text-align: left; font-size: 14px; }
.guia-pitem .cg-svg { max-width: 178px; }
.guia-serie-grid .cg-svg { max-width: 150px; }
.guia-pitem .cg-pair .cg-svg, .guia-serie-grid .cg-pair .cg-svg { max-width: 124px; }

/* ===== Números coloreados de la fórmula viva (HTML, no KaTeX) ===== */
.cg-no { color: var(--guia-deep); font-weight: 800; }     /* dato (naranja AA) */
.cg-ng { color: var(--text-success-strong, #1C7A3A); font-weight: 800; } /* resultado (verde AA) */
.cg-nk { color: var(--guia-navy); font-style: normal; font-weight: 800; } /* etiqueta (navy) */

/* ============================================================
 * Widgets por toque (visor 3D / euler)
 * ============================================================ */
.cg-viewer, .cg-euler { display: grid; gap: 12px; padding: 16px; border: 2px solid var(--guia-ink); border-radius: 14px; background: var(--guia-cream); }
.cg-lab-top { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.cg-flag { font-size: 13px; font-weight: 800; text-transform: uppercase; letter-spacing: .04em; color: #fff; background: var(--guia-orange); border: 2px solid var(--guia-ink); border-radius: 999px; padding: 3px 11px; }
.cg-inst { font-size: 15px; font-weight: 700; color: var(--guia-deep); }
.cg-inst b { font-weight: 800; color: var(--guia-ink); }

/* Pestañas para elegir cuerpo */
.cg-tabs { display: flex; gap: 7px; flex-wrap: wrap; }
.cg-tab { font: inherit; font-weight: 700; font-size: 15px; padding: 7px 13px; border: 2px solid var(--guia-ink); border-radius: 999px; background: #fff; color: var(--guia-ink); cursor: pointer; box-shadow: 2px 2px 0 var(--guia-ink); transition: transform .1s, box-shadow .1s, background .1s; }
.cg-tab:hover { transform: translate(-1px, -1px); box-shadow: 3px 3px 0 var(--guia-ink); }
.cg-tab.active { background: var(--guia-navy); color: #fff; }

.cg-stage { text-align: center; }
.cg-viewer-svg, .cg-euler-svg { width: 100%; max-width: 290px; margin: 0 auto; }

/* Steppers de dimensiones */
.cg-dims { display: flex; gap: 10px 16px; flex-wrap: wrap; justify-content: center; }
.cg-dim { display: flex; flex-direction: column; align-items: center; gap: 5px; }
.cg-dim-lbl { font-size: 13px; font-weight: 800; text-transform: uppercase; letter-spacing: .03em; color: var(--guia-navy); }
.cg-stepper { display: flex; align-items: center; gap: 8px; }
.cg-dim-val { font-size: 16px; font-weight: 700; color: var(--guia-ink); min-width: 56px; text-align: center; }
.cg-dim-val b { font-weight: 800; }
.cg-step { font: inherit; font-weight: 800; font-size: 20px; line-height: 1; width: 44px; height: 44px; border: 2px solid var(--guia-ink); border-radius: 10px; background: #fff; color: var(--guia-ink); cursor: pointer; box-shadow: 2px 2px 0 var(--guia-ink); transition: transform .1s, box-shadow .1s; }
.cg-step:hover { transform: translate(-1px, -1px); box-shadow: 3px 3px 0 var(--guia-ink); }
.cg-step:active { transform: translate(0, 0); box-shadow: 1px 1px 0 var(--guia-ink); }

/* Lectura de área y volumen */
.cg-readout { display: flex; gap: 10px; flex-wrap: wrap; }
.cg-result { flex: 1 1 140px; background: #fff; border: 1.5px solid var(--guia-line); border-radius: 12px; padding: 10px 14px; text-align: center; }
.cg-result.cg-na { opacity: .6; }
.cg-rlbl { display: block; font-size: 13px; font-weight: 800; text-transform: uppercase; letter-spacing: .03em; color: var(--guia-navy); }
.cg-rval { display: block; font-size: 22px; font-weight: 800; color: var(--guia-ink); margin-top: 2px; }

/* Fórmula viva coloreada */
.cg-fx { display: grid; gap: 6px; background: #fff; border: 1.5px solid var(--guia-line); border-radius: 12px; padding: 10px 14px; }
.cg-fx-line { font-size: 16px; line-height: 1.5; color: var(--guia-ink); margin: 0; word-break: break-word; }
.cg-note { font-size: 15px; color: var(--guia-muted); font-weight: 600; }

/* Desarrollo plano */
.cg-unfold { background: #fff; border: 1.5px dashed var(--guia-navy); border-radius: 12px; padding: 12px 14px; }
.cg-unfold-cap { font-size: 15px; line-height: 1.5; color: var(--guia-deep); margin: 0 0 8px; }
.cg-unfold-cap b { font-weight: 800; }
.cg-unfold-svg { width: 100%; max-width: 280px; margin: 0 auto; display: block; }

/* Lectura de Euler */
.cg-euler-read { display: flex; flex-direction: column; align-items: center; gap: 6px; text-align: center; }
.cg-ename { font-size: 20px; font-weight: 800; letter-spacing: .02em; color: var(--guia-ink); }
.cg-euler-eq { font-size: 17px; font-weight: 700; color: var(--guia-ink); margin: 0; }
.cg-euler-verdict { font-size: 17px; font-weight: 700; color: var(--guia-ink); margin: 0; }

/* Botón (sticker, mismo lenguaje del motor) */
.cg-btn { font: inherit; font-weight: 800; font-size: 16px; padding: 10px 16px; border: 2px solid var(--guia-ink); border-radius: 10px; background: #fff; color: var(--guia-ink); cursor: pointer; box-shadow: 2px 2px 0 var(--guia-ink); transition: transform .1s, box-shadow .1s; }
.cg-btn:hover { transform: translate(-1px, -1px); box-shadow: 3px 3px 0 var(--guia-ink); }
.cg-btn:active { transform: translate(0, 0); box-shadow: 1px 1px 0 var(--guia-ink); }
.cg-ctrl { display: flex; justify-content: center; }

/* ===== Impresión: oculta los widgets interactivos ===== */
@media print {
  .cg-viewer, .cg-euler { display: none !important; }
}