/* SABI LECTOR · © 2025-2026 SABI CENTEC. Todos los derechos reservados. */
:root {
  --azul: #1A2D7A; --naranja: #F47C20; --oro: #F5C518;
  --fondo: #F4F6FC; --papel: #FFFFFF; --texto: #141B3A; --suave: #5A6385; --linea: #DDE2F1;
  --burbuja: #EEF1FB; --mia: #1A2D7A; --mia-texto: #FFFFFF;
  --sombra: 0 6px 24px rgba(26, 45, 122, .10);
  --r: 16px;
}
@media (prefers-color-scheme: dark) {
  :root { --fondo: #070C25; --papel: #101942; --texto: #EEF1FF; --suave: #A9B2D8; --linea: #26306A; --burbuja: #18225A; --mia: #F47C20; --mia-texto: #1A1200; --sombra: 0 6px 24px rgba(0, 0, 0, .35); }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--fondo); color: var(--texto); font: 16px/1.55 'Work Sans', system-ui, sans-serif; min-height: 100vh; display: flex; flex-direction: column; }
h1, h2, h3, legend, .marca b, .cta { font-family: 'Space Grotesk', 'Work Sans', sans-serif; }
a { color: var(--naranja); }
button { font: inherit; cursor: pointer; }
[hidden] { display: none !important; }

.barra { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 16px; background: var(--azul); color: #fff; }
.marca { display: flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; }
.marca img { border-radius: 50%; background: #fff; }
.marca span { display: flex; flex-direction: column; line-height: 1.1; }
.marca small { font-size: 12px; opacity: .8; }
.barra nav { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.chip { background: rgba(255,255,255,.12); color: #fff; border: 1px solid rgba(255,255,255,.25); border-radius: 999px; padding: 6px 12px; font-size: 14px; text-decoration: none; white-space: nowrap; }
.chip:hover { background: rgba(255,255,255,.22); }

main { flex: 1; width: 100%; max-width: 880px; margin: 0 auto; padding: 16px; }
.hero h1 { font-size: clamp(26px, 5vw, 40px); line-height: 1.15; margin: 12px 0 8px; }
.hero h1 span { color: var(--naranja); }
.hero p { color: var(--suave); margin: 0 0 16px; }
.tarjeta { background: var(--papel); border-radius: var(--r); box-shadow: var(--sombra); padding: 18px; }
fieldset { border: 0; padding: 0; margin: 0 0 18px; }
legend { font-weight: 700; font-size: 18px; margin-bottom: 10px; }
.opciones { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 8px; }
.opciones label { position: relative; }
.opciones input { position: absolute; opacity: 0; inset: 0; }
.opciones span { display: flex; flex-direction: column; gap: 2px; height: 100%; padding: 12px; border: 2px solid var(--linea); border-radius: 12px; font-weight: 600; transition: .15s; }
.opciones small { font-weight: 400; color: var(--suave); font-size: 13px; }
.opciones input:checked + span { border-color: var(--naranja); background: color-mix(in srgb, var(--naranja) 10%, transparent); }
.opciones input:focus-visible + span { outline: 3px solid var(--oro); }
.campo { display: flex; flex-direction: column; gap: 4px; margin-top: 12px; font-weight: 600; max-width: 260px; }
select, textarea { font: inherit; color: var(--texto); background: var(--papel); border: 2px solid var(--linea); border-radius: 10px; padding: 10px; }
.nota { color: var(--suave); font-size: 14px; margin: 10px 0 0; }
.cta { width: 100%; border: 0; border-radius: 12px; padding: 14px; background: var(--naranja); color: #1A1200; font-weight: 700; font-size: 18px; }
.cta:hover { filter: brightness(1.05); }

.fila-titulo { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.fila-titulo h2 { margin: 8px 0; }
.fila-titulo small, h3 small { font-weight: 400; color: var(--suave); font-size: 14px; }
.volver { background: none; border: 0; color: var(--suave); padding: 6px 0; }
.libros { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; margin: 12px 0; }
.libro { text-align: left; background: var(--papel); border: 2px solid transparent; border-radius: var(--r); box-shadow: var(--sombra); padding: 14px; color: var(--texto); display: flex; flex-direction: column; gap: 6px; }
.libro:hover, .libro:focus-visible { border-color: var(--naranja); outline: none; }
.libro b { font-family: 'Space Grotesk', sans-serif; font-size: 17px; line-height: 1.25; }
.libro small { color: var(--suave); }
.etiquetas { display: flex; gap: 6px; flex-wrap: wrap; margin-top: auto; }
.etq { font-size: 12px; padding: 2px 8px; border-radius: 999px; background: var(--burbuja); color: var(--suave); }
.etq.oro { background: var(--oro); color: #2A2000; }
.etq.ok { background: #1F9D55; color: #fff; }
.continuar { background: var(--azul); color: #fff; border-radius: var(--r); padding: 14px; display: flex; justify-content: space-between; align-items: center; gap: 10px; margin: 10px 0; }
.continuar button { background: var(--oro); border: 0; border-radius: 10px; padding: 10px 14px; font-weight: 700; }
.legal { color: var(--suave); font-size: 13px; }

.tablero { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.libro-actual { flex: 1; min-width: 180px; display: flex; flex-direction: column; line-height: 1.2; }
.libro-actual small { color: var(--suave); }
.medallero { display: flex; gap: 6px; }
.medallero span { background: var(--papel); border-radius: 10px; padding: 4px 8px; box-shadow: var(--sombra); font-size: 14px; }
.acciones { display: flex; gap: 8px; flex-wrap: wrap; margin: 12px 0; }
.boton { border: 0; border-radius: 10px; padding: 10px 12px; background: var(--azul); color: #fff; font-weight: 600; font-size: 14px; text-decoration: none; }
.boton.oro { background: var(--oro); color: #2A2000; }
.boton.suave { background: var(--burbuja); color: var(--texto); }
.boton.activo { background: var(--naranja); color: #1A1200; }

.chat { display: flex; flex-direction: column; gap: 10px; min-height: 40vh; padding-bottom: 8px; }
.msg { max-width: 88%; padding: 12px 14px; border-radius: 16px; background: var(--burbuja); white-space: normal; overflow-wrap: anywhere; }
.msg.yo { align-self: flex-end; background: var(--mia); color: var(--mia-texto); border-bottom-right-radius: 4px; }
.msg.guia { align-self: flex-start; border-bottom-left-radius: 4px; }
.msg.aviso { align-self: center; background: transparent; color: var(--suave); font-size: 14px; text-align: center; }
.msg p { margin: 0 0 8px; } .msg p:last-child { margin: 0; }
.msg ul, .msg ol { margin: 4px 0 8px; padding-left: 22px; }
.msg h3, .msg h4 { margin: 4px 0 6px; font-size: 17px; }
.msg table { border-collapse: collapse; width: 100%; font-size: 14px; margin: 6px 0; display: block; overflow-x: auto; }
.msg th, .msg td { border: 1px solid var(--linea); padding: 4px 6px; text-align: left; }
.msg .hablar { margin-top: 6px; background: none; border: 0; color: var(--suave); font-size: 13px; padding: 0; }
.escribiendo span { display: inline-block; width: 7px; height: 7px; margin: 0 2px; border-radius: 50%; background: var(--suave); animation: punto 1s infinite; }
.escribiendo span:nth-child(2) { animation-delay: .15s; } .escribiendo span:nth-child(3) { animation-delay: .3s; }
@keyframes punto { 50% { transform: translateY(-4px); opacity: .4; } }

.redactor { position: sticky; bottom: 0; display: flex; gap: 8px; align-items: flex-end; padding: 10px 0; background: var(--fondo); }
.redactor textarea { flex: 1; resize: none; max-height: 140px; }
.enviar, .mic { border: 0; border-radius: 12px; width: 48px; height: 48px; background: var(--naranja); color: #1A1200; font-size: 20px; flex: none; }
.mic { background: var(--azul); color: #fff; }
.mic.escuchando { background: #D93025; animation: late 1s infinite; }
@keyframes late { 50% { box-shadow: 0 0 0 8px rgba(217, 48, 37, .25); } }
.modo-voz .mic { width: 64px; height: 64px; font-size: 28px; }
.estado { color: var(--suave); font-size: 13px; min-height: 1em; margin: 0; }

dialog { border: 0; border-radius: var(--r); padding: 18px; width: min(640px, 94vw); max-height: 88vh; background: var(--papel); color: var(--texto); box-shadow: var(--sombra); }
dialog::backdrop { background: rgba(7, 12, 37, .55); }
.cerrar { float: right; } .cerrar button { background: none; border: 0; font-size: 20px; color: var(--suave); }
.niveles { display: grid; grid-template-columns: repeat(4, 1fr); gap: 4px; margin: 6px 0 12px; }
.niveles div { padding: 6px; border-radius: 8px; background: var(--burbuja); font-size: 12px; text-align: center; color: var(--suave); }
.niveles div.si { background: var(--naranja); color: #1A1200; font-weight: 600; }
.insignias { display: flex; flex-wrap: wrap; gap: 6px; }
.tabla { width: 100%; border-collapse: collapse; font-size: 14px; }
.tabla th, .tabla td { border-bottom: 1px solid var(--linea); padding: 6px; text-align: left; vertical-align: top; }
.cifras { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; margin: 12px 0; }
.cifra { background: var(--papel); border-radius: var(--r); box-shadow: var(--sombra); padding: 12px; }
.cifra b { display: block; font: 700 28px 'Space Grotesk', sans-serif; color: var(--naranja); }
.cifra small { color: var(--suave); }
.barras { display: flex; align-items: flex-end; gap: 3px; height: 120px; padding: 8px; background: var(--papel); border-radius: var(--r); box-shadow: var(--sombra); }
.barras div { flex: 1; background: var(--azul); border-radius: 3px 3px 0 0; min-height: 2px; }
@media (prefers-color-scheme: dark) { .barras div { background: var(--naranja); } }

.brain { position: fixed; inset: 0; z-index: 20; display: grid; place-items: center; background: rgba(7, 12, 37, .85); padding: 16px; }
.brain-caja { background: var(--papel); border-radius: var(--r); padding: 22px; max-width: 420px; text-align: center; }
.respira { width: 160px; height: 160px; margin: 16px auto; border-radius: 50%; display: grid; place-items: center; background: color-mix(in srgb, var(--oro) 35%, transparent); animation: respira 8s ease-in-out infinite; font-weight: 700; }
@keyframes respira { 0%, 100% { transform: scale(.7); } 50% { transform: scale(1); } }
@media (prefers-reduced-motion: reduce) { .respira, .mic.escuchando, .escribiendo span { animation: none; } }

footer { text-align: center; color: var(--suave); font-size: 12px; padding: 16px; }
@media (max-width: 560px) {
  .barra { padding: 8px 12px; } .marca small { display: none; }
  .medallero { width: 100%; justify-content: space-between; }
  .msg { max-width: 94%; }
}