/* =========================================================
   Cursos (/cursos): catálogo estilo Coursera, página del curso,
   módulos, evaluación, avance por usuario y «Mis cursos».
   Usa los tokens de site.css (--pf-*).
   ========================================================= */
:root {
  --cs-panel: #f2f5fa;
  --cs-marino: #0b1b3a;
  --cs-tinta: #13233f;
  --cs-ok: #15803d;
  --cs-ok-suave: #dcfce7;
  --cs-mal: #b42318;
  --cs-mal-suave: #fdecea;
}

/* ---------- barra de avance (todas las páginas) ---------- */
.cs-avance-barra { position: relative; height: 6px; border-radius: 999px; background: #e3e9f3; overflow: hidden; }
.cs-avance-barra > span { display: block; height: 100%; width: 0; border-radius: inherit; background: linear-gradient(90deg, var(--pf-azul), #4f8cff); transition: width .4s ease; }
.cs-avance-barra-alta { height: 10px; }
@media (prefers-reduced-motion: reduce) { .cs-avance-barra > span { transition: none; } }

/* ---------- catálogo: encabezado ---------- */
.cs-hero { background: radial-gradient(1100px 420px at 90% -20%, var(--pf-celeste-2), transparent 60%), linear-gradient(180deg, var(--pf-celeste) 0%, #fff 100%); border-bottom: 1px solid var(--pf-borde); padding: 2.6rem 0 2.2rem; }
.cs-hero-in { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 420px); gap: 2.5rem; align-items: center; }
.cs-hero h1 { font-size: clamp(1.75rem, 3.2vw, 2.6rem); line-height: 1.15; margin: .8rem 0 .7rem; text-wrap: balance; max-width: 22ch; }
.cs-hero .lead { color: var(--pf-suave); max-width: 40rem; font-size: 1.1rem; }
.cs-hero-datos { display: flex; flex-wrap: wrap; gap: .5rem 1.3rem; font-size: .9rem; font-weight: 600; color: var(--pf-suave); margin-top: 1rem; }
.cs-hero-datos i { color: var(--pf-azul); margin-right: .25rem; }
.cs-hero-cuenta { display: flex; gap: 1rem; background: #fff; border: 1px solid var(--pf-borde); border-radius: 18px; padding: 1.3rem; box-shadow: var(--pf-sombra); }
.cs-hero-cuenta > i { font-size: 1.8rem; color: var(--pf-azul); line-height: 1; }
.cs-hero-cuenta strong { display: block; font-size: 1.02rem; margin-bottom: .2rem; }
.cs-hero-cuenta p { font-size: .9rem; color: var(--pf-suave); margin-bottom: .8rem; }

/* ---------- catálogo: continuar ---------- */
.cs-seguir { padding-top: 2rem; }
.cs-seguir-lista { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 420px), 1fr)); gap: .9rem; }
.cs-seguir-item { display: flex; align-items: center; gap: 1rem; padding: .9rem 1rem; background: #fff; border: 1px solid var(--pf-borde); border-radius: 16px; color: var(--pf-texto); transition: border-color .15s, box-shadow .15s; }
.cs-seguir-item:hover { border-color: var(--pf-azul); box-shadow: var(--pf-sombra); color: var(--pf-texto); }
.cs-seguir-ico { width: 52px; height: 52px; flex: none; border-radius: 12px; display: inline-flex; align-items: center; justify-content: center; font-size: 1.5rem; color: #fff; }
.cs-seguir-txt { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: .35rem; }
.cs-seguir-txt strong { font-size: .98rem; line-height: 1.25; }
.cs-seguir-txt small { color: var(--pf-suave); font-size: .8rem; }
.cs-seguir-btn { font-weight: 700; font-size: .88rem; color: var(--pf-azul); white-space: nowrap; }

/* ---------- catálogo: panel con cuadros ---------- */
.cs-catalogo-sec { padding-top: 2rem; padding-bottom: 1rem; }
.cs-panel { background: var(--cs-panel); border-radius: 22px; padding: 1.6rem; display: grid; grid-template-columns: 300px minmax(0, 1fr); gap: 1.8rem; align-items: start; }
.cs-panel-intro { padding: 2.2rem .4rem 0 .6rem; position: sticky; top: 90px; }
.cs-panel-intro h2 { font-size: 1.55rem; line-height: 1.2; text-wrap: balance; margin-bottom: .8rem; }
.cs-panel-intro p { color: #334155; line-height: 1.6; }
.cs-panel-cta { font-weight: 700; color: var(--pf-azul); display: inline-flex; align-items: center; gap: .35rem; }
.cs-panel-cta:hover { color: var(--pf-azul-osc); }
.cs-filtros { display: flex; flex-wrap: wrap; gap: .45rem; margin-bottom: 1rem; }
.cs-filtro { border: 1px solid #c9d3e3; background: #fff; color: var(--pf-texto); border-radius: 999px; padding: .4rem .9rem; font-size: .88rem; font-weight: 600; cursor: pointer; transition: background .15s, color .15s, border-color .15s; }
.cs-filtro:hover { border-color: var(--pf-azul); color: var(--pf-azul-osc); }
.cs-filtro.activo { background: var(--cs-tinta); border-color: var(--cs-tinta); color: #fff; }
.cs-filtro:focus-visible, .cs-completar:focus-visible, .cs-opcion:focus-visible, .cs-card-enlace:focus-visible { outline: 3px solid var(--pf-azul); outline-offset: 2px; }
.cs-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(232px, 1fr)); gap: 1rem; }
.cs-vacio { color: var(--pf-suave); padding: 1rem 0; }
.cs-mas-fila { margin-top: 1.1rem; }

/* ---------- cuadro de curso ---------- */
.cs-card { background: #fff; border: 1px solid #d7dfeb; border-radius: 14px; overflow: hidden; transition: box-shadow .18s, transform .18s; min-width: 0; }
.cs-card:hover { box-shadow: 0 14px 34px -16px rgba(15, 30, 70, .35); transform: translateY(-2px); }
.cs-card-enlace { display: flex; flex-direction: column; height: 100%; color: var(--pf-texto); padding: .55rem; }
.cs-card-enlace:hover { color: var(--pf-texto); }
.cs-card-destacada { border-color: var(--pf-azul); box-shadow: 0 0 0 3px rgba(37, 99, 235, .12); }
.cs-thumb { position: relative; aspect-ratio: 16 / 9; max-width: 100%; border-radius: 9px; overflow: hidden; display: flex; align-items: center; justify-content: center; color: #fff; }
.cs-thumb img { width: 100%; height: 100%; object-fit: cover; object-position: center 18%; }
.cs-thumb > i { position: relative; font-size: 2.6rem; filter: drop-shadow(0 6px 14px rgba(0, 0, 0, .25)); }
.cs-thumb-renglones { position: absolute; inset: 14% 10% -10% 42%; background: #fffdf6; border-radius: 4px 4px 0 0; transform: rotate(-6deg); box-shadow: 0 10px 24px -8px rgba(0, 0, 0, .4);
  background-image: repeating-linear-gradient(180deg, transparent 0 9px, rgba(30, 58, 138, .22) 9px 10px); opacity: .92; }
.cs-thumb-renglones + i { margin-right: 34%; }
.cs-thumb-cinta { position: absolute; top: .55rem; left: .55rem; background: #fde047; color: #422006; font-size: .7rem; font-weight: 800; letter-spacing: .04em; text-transform: uppercase; padding: .15rem .5rem; border-radius: 6px; }
.cs-tono-marino { background: linear-gradient(135deg, #0b1b3a, #1e3a8a); }
.cs-tono-azul { background: linear-gradient(135deg, #1d4ed8, #3b82f6); }
.cs-tono-celeste { background: linear-gradient(135deg, #0369a1, #38bdf8); }
.cs-tono-verde { background: linear-gradient(135deg, #065f46, #10b981); }
.cs-tono-ambar { background: linear-gradient(135deg, #92400e, #f59e0b); }
.cs-tono-violeta { background: linear-gradient(135deg, #4c1d95, #8b5cf6); }
.cs-tono-coral { background: linear-gradient(135deg, #9f1239, #fb7185); }
.cs-tono-pizarra { background: linear-gradient(135deg, #1e293b, #64748b); }
.cs-card-cuerpo { display: flex; flex-direction: column; gap: .45rem; padding: .8rem .35rem .35rem; flex: 1; }
.cs-proveedor { display: flex; align-items: center; gap: .5rem; font-size: .84rem; color: #334155; min-width: 0; }
.cs-proveedor img { width: 28px; height: 28px; flex: none; border: 1px solid var(--pf-borde); border-radius: 6px; padding: 3px; background: #fff; }
.cs-proveedor span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cs-card-titulo { font-size: 1.02rem; font-weight: 800; line-height: 1.3; margin: 0; letter-spacing: -.01em; }
.cs-card-meta { font-size: .8rem; color: var(--pf-suave); margin: 0; }
.cs-insignias { display: flex; flex-wrap: wrap; gap: .3rem; margin-top: auto; padding-top: .2rem; }
.cs-insignia { font-size: .76rem; font-weight: 700; border: 1px solid #c9d3e3; border-radius: 6px; padding: .08rem .45rem; color: #334155; background: #fff; }
.cs-insignia-nuevo { background: #fde7ea; border-color: #fde7ea; color: #9f1239; }
.cs-insignia-gratis { background: var(--pf-celeste); border-color: var(--pf-celeste); color: var(--pf-azul-prof); }
.cs-avance { display: flex; flex-direction: column; gap: .3rem; margin-top: .3rem; }
.cs-avance small { font-size: .76rem; color: var(--pf-suave); font-variant-numeric: tabular-nums; }
.cs-card[hidden], .cs-card.cs-oculta { display: none; }

/* ---------- catálogo: por qué ---------- */
.cs-porque { padding: 2.4rem 0 3rem; }
.cs-porque-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); gap: 1rem; }
.cs-porque-item { height: 100%; padding: 1.2rem; border: 1px solid var(--pf-borde); border-radius: 16px; }
.cs-porque-item > i { font-size: 1.5rem; color: var(--pf-azul); }
.cs-porque-item h3 { font-size: 1.05rem; margin: .5rem 0 .3rem; }
.cs-porque-item p { font-size: .9rem; color: var(--pf-suave); margin: 0; }

/* ---------- página del curso ---------- */
.cs-curso-hero { background: radial-gradient(900px 400px at 80% 0%, rgba(59, 130, 246, .35), transparent 60%), linear-gradient(135deg, var(--cs-marino), #1e3a8a); color: #fff; padding: 2.4rem 0 0; overflow: hidden; }
.cs-curso-hero-in { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 2rem; align-items: end; }
.cs-curso-hero-texto { padding-bottom: 2.4rem; }
.cs-volver { color: #c7d7fe; font-size: .88rem; font-weight: 600; display: inline-flex; gap: .35rem; margin-bottom: 1rem; }
.cs-volver:hover { color: #fff; }
.cs-proveedor-claro { color: #dbeafe; margin-bottom: .6rem; }
.cs-proveedor-claro img { border-color: transparent; }
.cs-curso-hero h1 { color: #fff; font-size: clamp(1.8rem, 3.6vw, 2.9rem); line-height: 1.12; text-wrap: balance; margin-bottom: .8rem; }
.cs-publico { font-weight: 600; color: #93c5fd; }
.cs-curso-hero .lead { color: #dbeafe; max-width: 44rem; font-size: 1.1rem; margin-bottom: 1.4rem; }
.cs-hero-gratis { color: #dbeafe; font-weight: 600; font-size: .92rem; }
.cs-hero-gratis i { color: #fde047; }
.cs-curso-hoja { margin: 0; align-self: end; transform: rotate(4deg) translateY(36px); }
.cs-curso-hoja img { width: 100%; height: auto; display: block; border-radius: 6px 6px 0 0; box-shadow: 0 30px 60px -20px rgba(0, 0, 0, .55); }
.cs-datos { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); margin: -1.4rem 0 0; position: relative; z-index: 2; background: #fff; border: 1px solid var(--pf-borde); border-radius: 16px; box-shadow: var(--pf-sombra); }
.cs-datos > div { padding: 1rem 1.1rem; border-left: 1px solid var(--pf-borde); }
.cs-datos > div:first-child { border-left: 0; }
.cs-datos dt { font-size: 1.02rem; font-weight: 800; }
.cs-datos dd { margin: 0; font-size: .82rem; color: var(--pf-suave); }
.cs-curso-cuerpo { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 2rem; padding-top: 2rem; padding-bottom: 3rem; align-items: start; }
.cs-curso-main { display: flex; flex-direction: column; gap: 1.6rem; min-width: 0; }
.cs-curso-lado { display: flex; flex-direction: column; gap: 1rem; position: sticky; top: 90px; }
.cs-caja { background: #fff; border: 1px solid var(--pf-borde); border-radius: 16px; padding: 1.3rem; }
.cs-caja > h2 { font-size: 1.25rem; margin-bottom: .9rem; }
.cs-caja-azul { background: linear-gradient(135deg, var(--pf-azul), var(--pf-azul-prof)); border: 0; color: #fff; }
.cs-caja-azul h2 { color: #fff; }
.cs-aprendera { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .8rem 1.4rem; }
.cs-aprendera li { display: flex; gap: .6rem; line-height: 1.5; font-size: .94rem; }
.cs-aprendera i { color: var(--pf-ok); font-size: 1.15rem; }
.cs-habilidades { display: flex; flex-wrap: wrap; gap: .45rem; }
.cs-habilidades span { background: #eef2f8; border-radius: 999px; padding: .3rem .8rem; font-size: .86rem; font-weight: 600; color: #334155; }
.cs-avance-grande p { margin: .55rem 0 .8rem; font-size: .92rem; font-variant-numeric: tabular-nums; }
.cs-modulos { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: .7rem; }
.cs-modulo details { background: #fff; border: 1px solid var(--pf-borde); border-radius: 16px; }
.cs-modulo details[open] { border-color: var(--pf-celeste-2); box-shadow: var(--pf-sombra); }
.cs-modulo summary { list-style: none; cursor: pointer; display: flex; gap: 1rem; align-items: center; padding: 1rem 1.1rem; }
.cs-modulo summary::-webkit-details-marker { display: none; }
.cs-modulo-ico { width: 46px; height: 46px; border-radius: 12px; background: var(--pf-celeste); color: var(--pf-azul); display: inline-flex; align-items: center; justify-content: center; font-size: 1.3rem; flex: none; }
.cs-modulo-txt { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: .1rem; }
.cs-modulo-txt small { font-size: .76rem; font-weight: 700; color: var(--pf-suave); }
.cs-modulo-txt strong { font-size: 1.05rem; }
.cs-modulo-txt > span { font-size: .87rem; color: var(--pf-suave); line-height: 1.45; }
.cs-modulo-pct { font-weight: 800; font-size: .88rem; color: var(--pf-azul); font-variant-numeric: tabular-nums; white-space: nowrap; }
.cs-modulo-lecciones { list-style: none; margin: 0; padding: 0 1.1rem .4rem 4.1rem; display: flex; flex-direction: column; }
.cs-modulo-lecciones li { display: flex; gap: .55rem; align-items: baseline; padding: .4rem 0; border-top: 1px solid #f1f5f9; font-size: .92rem; }
.cs-modulo-lecciones i { color: #94a3b8; }
.cs-modulo-lecciones li.hecha i { color: var(--cs-ok); }
.cs-modulo-lecciones a { color: var(--pf-texto); }
.cs-modulo-lecciones a:hover { color: var(--pf-azul); }
.cs-modulo-ir { display: inline-flex; gap: .35rem; margin: .2rem 0 1rem 4.1rem; font-weight: 700; font-size: .9rem; }

/* ---------- módulo ---------- */
.cs-modulo-cab-in { grid-template-columns: minmax(0, 1fr) minmax(0, 380px); align-items: center; }
.cs-modulo-avance { background: #fff; border: 1px solid var(--pf-borde); border-radius: 16px; padding: 1rem 1.1rem; display: flex; flex-direction: column; gap: .4rem; }
.cs-modulo-avance span { font-variant-numeric: tabular-nums; }
.cs-app { max-width: 1280px; grid-template-columns: 270px minmax(0, 1fr); }
.cs-nav-curso { display: flex; gap: .6rem; align-items: center; padding: .6rem; border-radius: 12px; background: var(--pf-celeste); color: var(--pf-azul-prof); font-weight: 800; font-size: .9rem; line-height: 1.25; margin-bottom: .8rem; }
.cs-nav-curso:hover { color: var(--pf-azul-osc); background: var(--pf-celeste-2); }
.cs-nav-curso > i { font-size: 1.3rem; }
.cs-nav-curso small { display: block; font-weight: 600; color: var(--pf-suave); font-size: .76rem; }
.cs-nav-avance { display: flex; flex-direction: column; gap: .3rem; margin: 0 .3rem 1rem; }
.cs-nav-avance small { font-size: .78rem; color: var(--pf-suave); font-variant-numeric: tabular-nums; }
.cs-nav .cu-nav-lecciones a i { font-size: .8rem; margin-right: .2rem; color: #94a3b8; }
.cs-nav .cu-nav-lecciones li.hecha a i { color: var(--cs-ok); }
.cs-nav-ingresar { background: var(--pf-celeste); color: var(--pf-azul-prof); border-color: var(--pf-celeste-2); }
.cs-leccion-ok { display: none; color: var(--cs-ok); font-weight: 700; }
.cu-leccion.hecha .cs-leccion-ok { display: inline-flex; gap: .25rem; align-items: center; margin-left: .4rem; }
.cu-leccion.hecha { border-color: #bbf7d0; }
.cs-leccion-pie { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .8rem; align-items: center; margin-top: 1.2rem; padding-top: 1rem; border-top: 1px dashed var(--pf-borde); }
.cs-leccion-pie-sistema { justify-content: flex-start; }
.cs-completar { display: inline-flex; align-items: center; gap: .5rem; border: 2px solid var(--pf-azul); background: #fff; color: var(--pf-azul-osc); font-weight: 700; border-radius: 999px; padding: .45rem 1.1rem; cursor: pointer; transition: background .15s, color .15s, border-color .15s; }
.cs-completar:hover { background: var(--pf-celeste); }
.cs-completar[aria-pressed="true"] { background: var(--cs-ok); border-color: var(--cs-ok); color: #fff; }
.cs-completar[aria-pressed="true"]:hover { background: #166534; }
.cs-completar[disabled] { opacity: .6; cursor: progress; }
.cs-cab-avance { display: flex; flex-direction: column; gap: .35rem; max-width: 34rem; margin-top: .9rem; }
.cs-cab-avance small { color: var(--pf-suave); font-size: .82rem; font-variant-numeric: tabular-nums; }

/* aviso flotante */
.cs-aviso { position: fixed; z-index: 1080; left: 50%; bottom: calc(1rem + env(safe-area-inset-bottom, 0px)); transform: translateX(-50%); max-width: min(92vw, 34rem);
  background: var(--cs-tinta); color: #fff; border-radius: 14px; padding: .8rem 1rem; box-shadow: 0 20px 40px -12px rgba(0, 0, 0, .45); display: flex; gap: .7rem; align-items: flex-start; font-size: .9rem; }
.cs-aviso a { color: #93c5fd; font-weight: 700; }
.cs-aviso button { margin-left: auto; border: 0; background: transparent; color: #cbd5e1; font-size: 1.1rem; line-height: 1; }

/* ---------- evaluación ---------- */
.cs-quiz { display: flex; flex-direction: column; gap: 1rem; margin-bottom: 1.6rem; }
.cs-quiz-marcador { position: sticky; top: 74px; z-index: 4; background: #fff; border: 1px solid var(--pf-borde); border-radius: 14px; padding: .75rem 1rem; display: flex; align-items: center; gap: 1rem; }
.cs-quiz-marcador .cs-avance-barra { flex: 1; }
.cs-quiz-marcador b { font-size: .88rem; font-variant-numeric: tabular-nums; white-space: nowrap; }
.cs-pregunta { background: #fff; border: 1px solid var(--pf-borde); border-radius: 16px; padding: 1.2rem 1.3rem; display: flex; flex-direction: column; gap: .7rem; }
.cs-pregunta-tema { font-size: .74rem; font-weight: 800; text-transform: uppercase; letter-spacing: .06em; color: var(--pf-suave); }
.cs-pregunta h3 { font-size: 1.08rem; margin: 0; display: flex; gap: .7rem; line-height: 1.4; }
.cs-pregunta h3 > span { color: var(--pf-azul); min-width: 1.4rem; }
.cs-opciones { display: grid; gap: .5rem; }
.cs-opcion { display: flex; gap: .7rem; align-items: flex-start; text-align: left; font: inherit; color: var(--pf-texto); background: #f8fafc; border: 1.5px solid var(--pf-borde); border-radius: 10px; padding: .65rem .85rem; cursor: pointer; }
.cs-opcion:hover:not(:disabled) { border-color: var(--pf-azul); }
.cs-opcion b { color: var(--pf-suave); min-width: 1rem; }
.cs-opcion:disabled { cursor: default; }
.cs-opcion.correcta { background: var(--cs-ok-suave); border-color: var(--cs-ok); }
.cs-opcion.incorrecta { background: var(--cs-mal-suave); border-color: var(--cs-mal); }
.cs-explica { margin: 0; padding: .7rem .9rem; border-radius: 10px; background: var(--pf-celeste); font-size: .92rem; line-height: 1.55; }
.cs-explica strong { display: block; }
.cs-explica.ok strong { color: var(--cs-ok); }
.cs-explica.no strong { color: var(--cs-mal); }
.cs-quiz-resultado { border: 2px solid var(--pf-azul); background: #fff; border-radius: 16px; padding: 1.3rem; display: flex; flex-direction: column; gap: .7rem; }
.cs-quiz-resultado h2 { font-size: 1.4rem; margin: 0; }
.cs-quiz-resultado p { margin: 0; color: #334155; }
.cs-lista ul { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .5rem 1.2rem; }
.cs-lista label { display: flex; gap: .55rem; align-items: flex-start; font-size: .94rem; cursor: pointer; }
.cs-lista input { margin-top: .2rem; flex: none; }

/* ---------- Mi cuenta › Mis cursos ---------- */
.cs-mi-curso { display: flex; gap: 1rem; align-items: flex-start; }
.cs-mi-curso-ico { width: 56px; height: 56px; flex: none; border-radius: 14px; display: inline-flex; align-items: center; justify-content: center; color: #fff; font-size: 1.6rem; }
.cs-mi-curso-txt { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: .5rem; }
.cs-estado { font-size: .76rem; font-weight: 800; border-radius: 999px; padding: .2rem .65rem; white-space: nowrap; }
.cs-estado-ok { background: var(--cs-ok-suave); color: var(--cs-ok); }
.cs-estado-curso { background: var(--pf-celeste); color: var(--pf-azul-prof); }
.cs-estado-nuevo { background: #f1f5f9; color: #475569; }
.cs-temas-avance { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: .55rem; }
.cs-temas-avance li { display: grid; grid-template-columns: minmax(0, 220px) minmax(0, 1fr) 3rem; gap: .8rem; align-items: center; font-size: .9rem; }
.cs-temas-avance a { color: var(--pf-texto); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cs-temas-avance a i { color: var(--pf-azul); margin-right: .3rem; }
.cs-temas-avance small { text-align: right; font-weight: 700; color: var(--pf-suave); font-variant-numeric: tabular-nums; }
.cs-resumen-num { font-size: 2rem; font-weight: 800; margin: .2rem 0 .5rem; font-variant-numeric: tabular-nums; }
.cs-resumen-num small { font-size: .9rem; font-weight: 600; color: var(--pf-suave); }

/* ---------- pantallas medianas y pequeñas ---------- */
@media (max-width: 1199.98px) {
  .cs-panel { grid-template-columns: minmax(0, 1fr); }
  .cs-panel-intro { position: static; padding: .4rem .2rem 0; }
  .cs-datos { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .cs-datos > div:nth-child(4) { border-left: 0; }
  .cs-datos > div:nth-child(n+4) { border-top: 1px solid var(--pf-borde); }
}
@media (max-width: 991.98px) {
  .cs-hero-in, .cs-curso-hero-in, .cs-curso-cuerpo { grid-template-columns: minmax(0, 1fr); }
  .cs-curso-hoja { display: none; }
  .cs-curso-lado { position: static; }
  .cs-app { grid-template-columns: minmax(0, 1fr); }
  .cs-aprendera, .cs-lista ul { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 575.98px) {
  .cs-panel { padding: 1rem; border-radius: 16px; }
  .cs-grid { grid-template-columns: minmax(0, 1fr); gap: .7rem; }
  /* en el celular, cada cuadro en formato de lista: miniatura a la izquierda */
  .cs-card-enlace { flex-direction: row; gap: .75rem; align-items: flex-start; }
  .cs-thumb { width: 104px; flex: none; aspect-ratio: 1 / 1; }
  .cs-thumb > i { font-size: 1.8rem; }
  .cs-thumb-renglones { inset: 18% -8% -10% 46%; }
  .cs-thumb-renglones + i { margin-right: 30%; }
  .cs-thumb-cinta { font-size: .6rem; top: .35rem; left: .35rem; }
  .cs-card-cuerpo { padding: .1rem 0 0; min-width: 0; gap: .3rem; }
  .cs-proveedor { font-size: .76rem; }
  .cs-proveedor img { width: 22px; height: 22px; }
  .cs-card-titulo { font-size: .98rem; }
  .cs-datos { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cs-datos > div { border-left: 0 !important; border-top: 1px solid var(--pf-borde); }
  .cs-datos > div:nth-child(-n+2) { border-top: 0; }
  .cs-datos > div:nth-child(even) { border-left: 1px solid var(--pf-borde) !important; }
  .cs-modulo-lecciones { padding-left: 1.1rem; }
  .cs-modulo-ir { margin-left: 1.1rem; }
  .cs-seguir-btn { display: none; }
  .cs-temas-avance li { grid-template-columns: minmax(0, 1fr) 3rem; }
  .cs-temas-avance .cs-avance-barra { grid-column: 1 / -1; grid-row: 2; }
  .cs-mi-curso-ico { display: none; }
}