/* PreparaTEC — taller (app.preparatec.altto.mx). Complementa base.css. */

.cargando { padding: 60px var(--pad); color: var(--faint); font-size: 11px; letter-spacing: .24em; text-align: center; }
main.vista { max-width: var(--maxw); margin: 0 auto; padding: clamp(22px, 4vh, 40px) var(--pad) 80px; }
main.vista.angosta { max-width: 760px; }
main.vista.lectura { max-width: 860px; }

/* barra del taller */
.nav .nav-links a.pro-link { color: var(--blue); }
.usuario-pill { display: inline-flex; align-items: center; gap: 8px; font-family: 'DM Mono', monospace; font-size: 11px; letter-spacing: .1em; color: var(--muted); padding: 7px 10px; border: 1px solid var(--line); }
.usuario-pill .chip { padding: 2px 7px; font-size: 9.5px; }
.nav-mobile { display: none; }

/* encabezados de vista */
.vista-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 22px; }
.vista-head .sec-head { margin-bottom: 0; flex: 1; }
.vista-head h1 { font-size: clamp(24px, 3.4vw, 38px); }
.miga { font-family: 'DM Mono', monospace; font-size: 10.5px; letter-spacing: .2em; color: var(--faint); margin-bottom: 10px; text-transform: uppercase; }
.miga a { color: var(--faint); }
.miga a:hover { color: var(--blue); }

/* rejilla de paneles */
.paneles { display: grid; grid-template-columns: repeat(12, 1fr); gap: 16px; }
.panel { grid-column: span 4; padding: 20px 22px; display: flex; flex-direction: column; gap: 10px; }
.panel.ancho { grid-column: span 8; }
.panel.todo { grid-column: 1 / -1; }
.panel.medio { grid-column: span 6; }
.panel h2, .panel h3 { font-size: 18px; }
.panel .n { font-family: 'DM Mono', monospace; font-size: clamp(30px, 3.4vw, 44px); color: var(--blue); line-height: 1; font-variant-numeric: tabular-nums; }
.panel .n small { font-size: 13px; color: var(--faint); letter-spacing: .08em; margin-left: 6px; }
.panel p { color: var(--muted); font-size: 14px; }
.panel .acciones { margin-top: auto; display: flex; gap: 8px; flex-wrap: wrap; padding-top: 8px; }
.lista { list-style: none; }
.lista li { padding: 9px 0; border-bottom: 1px dashed var(--line); font-size: 14px; display: flex; justify-content: space-between; gap: 12px; align-items: center; }
.lista li:last-child { border-bottom: 0; }
.lista .mini { font-family: 'DM Mono', monospace; font-size: 10.5px; letter-spacing: .1em; color: var(--faint); white-space: nowrap; }
.lista a { color: var(--ink); }
.lista a:hover { color: var(--blue); }

/* barras de progreso */
.pbar { height: 8px; background: var(--grid-major); position: relative; overflow: hidden; }
.pbar i { position: absolute; left: 0; top: 0; bottom: 0; display: block; }
.pbar .on { background: var(--blue-mid); transition: width .6s cubic-bezier(.2,.7,.2,1); }
.pbar .base { background: var(--blue); transition: width .6s cubic-bezier(.2,.7,.2,1); }
.pbar.grande { height: 12px; }
.pct { font-family: 'DM Mono', monospace; font-size: 11.5px; color: var(--faint); font-variant-numeric: tabular-nums; }

/* mapa */
.mapa-seccion { margin-bottom: 34px; }
.mapa-seccion > .sec-head h2 { font-size: clamp(22px, 2.8vw, 30px); }
.modulo { margin: 14px 0 22px; }
.modulo-head { display: flex; align-items: center; gap: 14px; margin-bottom: 8px; }
.modulo-head h3 { font-size: 17px; flex: 1; }
.temas-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.tema-card { padding: 14px 16px; display: flex; flex-direction: column; gap: 8px; color: var(--ink); }
.tema-card:hover { text-decoration: none; border-color: var(--blue); }
.tema-card .nombre { font-family: 'Space Grotesk', sans-serif; font-weight: 600; font-size: 15.5px; line-height: 1.25; }
.tema-card .meta { display: flex; justify-content: space-between; font-family: 'DM Mono', monospace; font-size: 10.5px; color: var(--faint); letter-spacing: .08em; }

/* tema */
.tema-layout { display: grid; grid-template-columns: 1fr 300px; gap: clamp(20px, 3vw, 40px); align-items: start; }
.tema-lado { position: sticky; top: 74px; display: flex; flex-direction: column; gap: 14px; }
.tema-lado .panel { grid-column: auto; }
.tabs { display: flex; gap: 6px; border-bottom: 1.5px solid var(--line-strong); margin-bottom: 18px; overflow-x: auto; scrollbar-width: none; }
.tabs button { font-family: 'DM Mono', monospace; font-size: 11px; letter-spacing: .14em; padding: 11px 14px; color: var(--muted); border-bottom: 2.5px solid transparent; margin-bottom: -1.5px; white-space: nowrap; }
.tabs button.on { color: var(--blue); border-bottom-color: var(--blue); }
.recursos-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.video { aspect-ratio: 16/9; background: var(--term-bg); border: 1px solid var(--line); }
.video iframe { width: 100%; height: 100%; border: 0; }
.recurso-card { padding: 14px 16px; }
.recurso-card h4 { font-size: 15px; margin-bottom: 4px; }
.recurso-card .atrib { font-family: 'DM Mono', monospace; font-size: 10.5px; color: var(--faint); letter-spacing: .08em; }
.imagen-rec img { border: 1px solid var(--line); background: #fff; max-height: 420px; object-fit: contain; width: 100%; }

/* práctica / reactivos */
.reactivo { padding: clamp(18px, 3vw, 30px); }
.reactivo .cabecera { display: flex; justify-content: space-between; gap: 12px; align-items: center; margin-bottom: 16px; flex-wrap: wrap; }
.reactivo .enunciado { font-size: clamp(16.5px, 1.7vw, 19px); line-height: 1.55; margin-bottom: 18px; }
.reactivo .enunciado p { margin-bottom: .6em; }
.figura { margin: 0 auto 18px; max-width: 520px; background: #fff; border: 1px solid var(--line); padding: 10px; }
.figura svg { width: 100%; height: auto; }
:root[data-theme="ciano"] .figura { background: #EAF2FC; }
.opciones { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.opcion { display: flex; gap: 14px; align-items: flex-start; width: 100%; text-align: left; padding: 13px 15px; border: 1px solid var(--line-strong); background: var(--panel); font-size: 15.5px; line-height: 1.45; transition: border-color .15s, background .15s; }
.opcion:hover { border-color: var(--blue); }
.opcion .letra { font-family: 'DM Mono', monospace; font-size: 12px; color: var(--blue); width: 24px; height: 24px; border: 1px solid var(--line-strong); display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px; }
.opcion.elegida { border-color: var(--blue); box-shadow: inset 0 0 0 1px var(--blue); }
.opcion.correcta { border-color: var(--ok); background: var(--ok-soft); }
.opcion.correcta .letra { background: var(--ok); color: #fff; border-color: var(--ok); }
.opcion.incorrecta { border-color: var(--bad); background: var(--bad-soft); }
.opcion.incorrecta .letra { background: var(--bad); color: #fff; border-color: var(--bad); }
.opcion[disabled] { cursor: default; }
.explicacion { margin-top: 18px; padding: 16px 18px; border-left: 3px solid var(--blue); background: var(--blue-soft); font-size: 15px; }
.explicacion h4 { font-family: 'DM Mono', monospace; font-weight: 400; font-size: 10.5px; letter-spacing: .2em; color: var(--blue); margin-bottom: 8px; }
.explicacion .dist { margin-top: 10px; font-size: 14px; color: var(--muted); }
.explicacion .dist b { font-family: 'DM Mono', monospace; color: var(--ink); font-weight: 400; }
.barra-practica { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin: 14px 0 18px; font-family: 'DM Mono', monospace; font-size: 11px; letter-spacing: .12em; color: var(--faint); }
.cronometro { font-variant-numeric: tabular-nums; color: var(--blue); font-size: 13px; }
.cronometro.rojo { color: var(--bad); }

/* pasaje */
.pasaje-layout { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: clamp(16px, 3vw, 36px); align-items: start; }
.pasaje { padding: clamp(18px, 3vw, 28px); position: sticky; top: 74px; max-height: calc(100svh - 90px); overflow: auto; }
.pasaje h3 { font-size: 20px; margin-bottom: 6px; }
.pasaje .fuente { font-family: 'DM Mono', monospace; font-size: 10.5px; color: var(--faint); letter-spacing: .1em; margin-bottom: 14px; }
.pasaje .texto { font-family: 'Fraunces', Georgia, serif; font-size: 16.5px; line-height: 1.72; }
.pasaje .texto p { margin-bottom: .9em; }
.pasaje .texto mark, .pasaje .texto .num { background: var(--blue-soft); color: var(--blue); font-family: 'DM Mono', monospace; font-size: 11px; padding: 0 4px; margin: 0 2px; vertical-align: super; }
.pasaje .texto u { text-decoration: underline; text-decoration-color: var(--blue); text-underline-offset: 3px; }
.preguntas-pasaje { display: flex; flex-direction: column; gap: 14px; }
.preguntas-pasaje .reactivo { padding: 18px 20px; }

/* simulacro */
.sim-head { position: sticky; top: 58px; z-index: 20; background: color-mix(in srgb, var(--paper) 92%, transparent); backdrop-filter: blur(8px); padding: 10px 0; border-bottom: 1px solid var(--line); margin-bottom: 18px; display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.sim-head .cronometro { font-size: 18px; }
.sim-nav { display: flex; flex-wrap: wrap; gap: 5px; margin: 16px 0; }
.sim-nav button { width: 34px; height: 30px; border: 1px solid var(--line-strong); font-family: 'DM Mono', monospace; font-size: 11px; color: var(--muted); background: var(--panel); }
.sim-nav button.resp { background: var(--blue-soft); color: var(--blue); border-color: var(--blue-mid); }
.sim-nav button.actual { border-color: var(--blue); box-shadow: inset 0 0 0 1.5px var(--blue); color: var(--ink); }
.sim-nav button.marcada { border-color: var(--warn); }
.resultado-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 24px; }
.escala-big { font-family: 'DM Mono', monospace; font-size: clamp(40px, 6vw, 72px); color: var(--blue); line-height: 1; }
.revision-item { padding: 16px 18px; margin-bottom: 10px; }
.revision-item.ok { border-left: 3px solid var(--ok); }
.revision-item.mal { border-left: 3px solid var(--bad); }
.revision-item .enunciado { font-size: 15px; margin-bottom: 8px; }
.revision-item .opc { font-size: 14px; color: var(--muted); }
.revision-item .opc.correcta { color: var(--ok); }
.revision-item .opc.elegida { color: var(--bad); }
.filtros { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.filtros button { font-family: 'DM Mono', monospace; font-size: 10.5px; letter-spacing: .14em; padding: 7px 11px; border: 1px solid var(--line-strong); color: var(--muted); }
.filtros button.on { color: var(--blue); border-color: var(--blue); background: var(--blue-soft); }

/* diagnóstico */
.diag-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }

/* plan */
.semana { padding: 18px 20px; margin-bottom: 12px; }
.semana.actual { border-color: var(--blue); box-shadow: inset 3px 0 var(--blue); }
.semana.pasada { opacity: .7; }
.semana-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; margin-bottom: 10px; }
.semana-head h3 { font-size: 17px; }
.semana .fase { font-family: 'DM Mono', monospace; font-size: 10.5px; letter-spacing: .18em; color: var(--blue); text-transform: uppercase; }
.bloques { list-style: none; }
.bloques li { display: flex; align-items: center; gap: 10px; padding: 7px 0; border-bottom: 1px dashed var(--line); font-size: 14.5px; }
.bloques li:last-child { border-bottom: 0; }
.bloques input[type=checkbox] { width: 18px; height: 18px; accent-color: var(--blue); flex-shrink: 0; }
.bloques li.hecho span.t { text-decoration: line-through; color: var(--faint); }
.bloques .min { margin-left: auto; font-family: 'DM Mono', monospace; font-size: 10.5px; color: var(--faint); white-space: nowrap; }
.consejo { margin-top: 10px; font-size: 13.5px; color: var(--muted); border-left: 3px solid var(--blue-mid); padding-left: 10px; }

/* flashcards */
.flash { padding: clamp(22px, 4vw, 40px); min-height: 240px; display: flex; flex-direction: column; justify-content: center; text-align: center; cursor: pointer; }
.flash .lado { font-family: 'DM Mono', monospace; font-size: 10.5px; letter-spacing: .2em; color: var(--faint); margin-bottom: 14px; }
.flash .txt { font-size: clamp(17px, 2vw, 21px); line-height: 1.5; }
.flash-botones { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 14px; }

/* tutor */
.chat { display: flex; flex-direction: column; height: calc(100svh - 170px); min-height: 420px; }
.chat-msgs { flex: 1; overflow: auto; padding: 6px 2px; display: flex; flex-direction: column; gap: 12px; }
.msg { max-width: 78ch; padding: 12px 16px; font-size: 15px; line-height: 1.6; }
.msg.yo { align-self: flex-end; background: var(--blue); color: #fff; }
:root[data-theme="ciano"] .msg.yo { color: #0B2649; }
.msg.tutor { align-self: flex-start; background: var(--panel); border: 1px solid var(--line); }
.msg.tutor .prosa { font-size: 15px; }
.msg.tutor .prosa p:last-child { margin-bottom: 0; }
.chat-form { display: flex; gap: 8px; margin-top: 12px; align-items: flex-end; }
.chat-form textarea { flex: 1; padding: 12px 13px; border: 1px solid var(--line-strong); background: var(--panel); min-height: 52px; max-height: 160px; resize: vertical; font-size: 16px; }

/* cuenta / pro */
.pro-hero { text-align: center; padding: clamp(24px, 5vh, 50px) 0 10px; }
.pro-hero h1 { font-size: clamp(28px, 4vw, 44px); margin-bottom: 10px; }
.pro-hero p { color: var(--muted); max-width: 58ch; margin: 0 auto; }
.pro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 26px; }
.pro-grid .plan { padding: 24px; display: flex; flex-direction: column; gap: 12px; }
.pro-grid .plan.pro { border-color: var(--blue); box-shadow: inset 0 3px var(--blue); }
.pro-grid h3 { font-size: 24px; }
.pro-grid .precio { font-family: 'DM Mono', monospace; font-size: 38px; color: var(--blue); line-height: 1; }
.pro-grid .precio small { font-size: 12px; color: var(--faint); margin-left: 6px; }
.pro-grid ul { list-style: none; flex: 1; }
.pro-grid li { padding: 7px 0; border-bottom: 1px dashed var(--line); font-size: 14.5px; display: flex; gap: 10px; }
.pro-grid li::before { content: '✓'; color: var(--blue); font-family: 'DM Mono', monospace; }
.tope { padding: 18px 20px; border-left: 3px solid var(--blue); background: var(--blue-soft); display: flex; justify-content: space-between; align-items: center; gap: 14px; flex-wrap: wrap; }
.tope p { font-size: 14.5px; }

/* auth */
.auth { max-width: 440px; margin: clamp(30px, 8vh, 80px) auto; padding: clamp(22px, 4vw, 34px); }
.auth h1 { font-size: 26px; margin-bottom: 6px; }
.auth .sub { color: var(--muted); font-size: 14.5px; margin-bottom: 20px; }
.auth .alt { margin-top: 16px; font-size: 14px; color: var(--muted); text-align: center; }

/* analítica */
.barras { display: flex; flex-direction: column; gap: 8px; }
.barra-fila { display: grid; grid-template-columns: 160px 1fr 60px; gap: 10px; align-items: center; font-size: 13.5px; }
.barra-fila .pbar { height: 10px; }
.semanas-chart { display: flex; align-items: flex-end; gap: 6px; height: 120px; border-bottom: 1px solid var(--line-strong); padding: 0 4px; }
.semanas-chart .col { flex: 1; display: flex; flex-direction: column; justify-content: flex-end; align-items: center; gap: 4px; height: 100%; }
.semanas-chart .col i { display: block; width: 100%; background: var(--blue-mid); }
.semanas-chart .col b { font-family: 'DM Mono', monospace; font-weight: 400; font-size: 9.5px; color: var(--faint); }

/* admin */
.admin-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 20px; }

@media (max-width: 1100px) {
  .panel { grid-column: span 6; }
  .panel.ancho { grid-column: span 12; }
  .temas-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 860px) {
  .tema-layout, .pasaje-layout { grid-template-columns: 1fr; }
  .tema-lado, .pasaje { position: static; max-height: none; }
  .resultado-grid, .diag-grid, .admin-grid { grid-template-columns: 1fr 1fr; }
  .recursos-grid, .pro-grid { grid-template-columns: 1fr; }
  .barra-fila { grid-template-columns: 110px 1fr 50px; }
}
@media (max-width: 640px) {
  .panel, .panel.medio { grid-column: span 12; }
  .temas-grid { grid-template-columns: 1fr; }
  .resultado-grid, .diag-grid, .admin-grid { grid-template-columns: 1fr; }
  .flash-botones { grid-template-columns: 1fr 1fr; }
  .usuario-pill span.nombre { display: none; }
  .nav-mobile { display: flex; position: fixed; bottom: 0; left: 0; right: 0; z-index: 90; background: color-mix(in srgb, var(--paper) 94%, transparent); backdrop-filter: blur(10px); border-top: 1px solid var(--line); justify-content: space-around; padding: 6px 4px calc(6px + env(safe-area-inset-bottom)); }
  .nav-mobile a { font-family: 'DM Mono', monospace; font-size: 9.5px; letter-spacing: .1em; color: var(--muted); padding: 8px 6px; text-transform: uppercase; }
  .nav-mobile a.active { color: var(--blue); }
  .nav .nav-links { display: none; }
  main.vista { padding-bottom: 110px; }
  .sim-head { top: 54px; }
}