:root{
  --bg:#0d1016;
  --bg2:#10141d;
  --card:#151b25;
  --card-soft:#1a2130;
  --border:rgba(255,255,255,.07);
  --border-strong:rgba(255,255,255,.13);
  --text:#e7eaf3;
  --muted:#ffffff;
  --accent:#6366f1;
  --accent2:#2563eb;
  --violet:#8b5cf6;
  --blue:#38bdf8;
  --green:#10b981;
  --amber:#f59e0b;
  --red:#f87171;
  --radius:14px;
}
*{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%}
body{
  font-family:'Inter',system-ui,sans-serif;
  background:var(--bg);
  color:var(--text);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
.aurora{display:none}
/* ---------- LAYOUT ---------- */
.app{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;gap:24px;padding:30px 18px 46px;min-height:100vh;max-width:1240px;margin:0 auto}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);width:100%}
/* ---------- ENCABEZADO CENTRAL ---------- */
.hero{display:flex;flex-direction:column;align-items:center;text-align:center;padding:10px 0 4px;animation:fadeUp .5s ease}
.hero .hero-logo{width:min(170px,44vw);height:auto;display:block;border-radius:14px;
  filter:drop-shadow(0 0 14px rgba(210,215,230,.35)) drop-shadow(0 10px 26px rgba(0,0,0,.5))}
.hero .hero-logo-img{width:100%;height:auto;display:block;border-radius:14px}
.hero-title{margin-top:4px;font-family:'Space Grotesk',sans-serif;font-size:clamp(23px,3.8vw,36px);font-weight:700;line-height:1.18;
  letter-spacing:.02em;text-transform:uppercase;display:block}
.hero-ai{margin-top:6px;font-family:'Space Grotesk',sans-serif;font-size:clamp(10.5px,1.4vw,13px);font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;display:inline-block;padding:3px 14px;border-radius:999px;color:#cdd6ea;
  background:linear-gradient(135deg,#4338ca 0%,#3730a3 55%,#155e75 100%);
  border:1px solid rgba(255,255,255,.16);
  box-shadow:0 0 8px rgba(79,70,229,.28), inset 0 1px 0 rgba(255,255,255,.14)}
.hero-sub{margin-top:6px;font-size:13px;letter-spacing:.02em;text-transform:uppercase;max-width:680px;line-height:1.8;display:block}
.gx{color:transparent;
  background:linear-gradient(100deg,#ffd000 0%,#ffb300 32%,#2eb6b8 72%,#1e7e80 100%);
  -webkit-background-clip:text;background-clip:text}
.gxi{color:transparent;
  background:linear-gradient(100deg,#1e7e80 0%,#2eb6b8 30%,#ffb300 70%,#ffd000 100%);
  -webkit-background-clip:text;background-clip:text}
/* [hidden] debe vencer a cualquier display declarado */
[hidden]{display:none!important}
/* ---------- FORMULARIO CENTRAL ---------- */
.form{max-width:640px;padding:20px;display:flex;flex-direction:column;gap:12px;animation:fadeUp .5s .1s ease both}
.form .step{margin:0}
.form .btn-primary{margin-top:4px;width:100%}
.form .side-note{margin-top:2px}
.card-inner{border:1px solid var(--border);border-radius:12px;padding:13px;background:var(--card-soft)}
/* Cajas de DATOS DE ENTRADA (contienen input/textarea/select): leve acento
   índigo para distinguirlas de las cajas solo informativas. Sutil. */
.card-inner:has(input),.card-inner:has(textarea),.card-inner:has(select){
  border-color:rgba(99,102,241,.32);
  background:linear-gradient(180deg,var(--card-soft) 0%,rgba(99,102,241,.05) 100%);
  box-shadow:inset 3px 0 0 rgba(99,102,241,.5);
}
  .step-head{display:flex;align-items:center;gap:8px;font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:14px;margin-bottom:10px;text-transform:uppercase;letter-spacing:.8px;color:var(--muted)}

  /* Título de acción de cada módulo (el step-head que sigue al bloque de API
     Key): barra suave alineada con los inputs para resaltar la acción principal */
  .module-view > .step-head{
    background:rgba(99,102,241,.12);
    color:#c4b5fd;
    border-left:3px solid var(--accent);
    border-radius:8px;
    padding:8px 14px;
    margin:2px 0 2px;
  }
  .module-view > .step-head .step-num{background-color:rgba(99,102,241,.18)}
  .module-view > .step-head.no-fill{background:none;border-left:none;color:var(--muted);padding-left:0}
  .module-view > .step-head.no-fill .step-num{
    background:linear-gradient(135deg,#f59e0b,#ec4899);
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23ffffff'%3E%3Cpath d='M12 3 1 8l11 5 9-4.91V17h2V8L12 3zM5 13.18v3.5L12 20l7-3.32v-3.5L12 16.5 5 13.18z'/%3E%3C/svg%3E");
    background-repeat:no-repeat;background-position:center;background-size:14px;
    box-shadow:0 3px 10px rgba(236,72,153,.35);
  }
.step-num{width:22px;height:22px;border-radius:6px;display:grid;place-items:center;font-size:12px;font-weight:700;color:#fff;background:var(--accent);flex-shrink:0;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23ffffff'%3E%3Cpath d='M12 3 1 8l11 5 9-4.91V17h2V8L12 3zM5 13.18v3.5L12 20l7-3.32v-3.5L12 16.5 5 13.18z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:center;background-size:14px}
/* area de texto (Instrucciones / prompt adicional, indicador, idea): mismo
   diseño que inputs y selects, en todas las vistas del asistente */
textarea{width:100%;resize:vertical;padding:10px 12px;border-radius:9px;background:var(--bg);
  border:1px solid var(--border-strong);color:var(--text);font-family:'Inter',sans-serif;font-size:14px;line-height:1.45;outline:none;transition:border .2s}
textarea#indicador,textarea#idea{min-height:58px}
textarea#instruccionesSilabo,textarea#instruccionesSesiones,
textarea#instrucciones_ficha,textarea#instrucciones_presentacion,
textarea#instrucciones_caso,textarea#instrucciones_instrumento,
textarea#instrucciones_registro-auxiliar{min-height:70px}
textarea:focus{border-color:var(--accent)}
.field-label{display:block;font-size:13px;text-transform:uppercase;letter-spacing:.8px;color:var(--muted);margin:10px 0 5px}
input[type="text"],
input[type="password"],
select{width:100%;padding:10px 12px;border-radius:9px;background:var(--bg);
  border:1px solid var(--border-strong);color:var(--text);font-family:'Inter',sans-serif;font-size:14px;line-height:1.45;outline:none;transition:border .2s}
input:focus,select:focus{border-color:var(--accent)}
select{cursor:pointer;appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238b93a8' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'/></svg>");background-repeat:no-repeat;background-position:right 11px center;padding-right:30px}
select option{background:var(--card);color:var(--text)}
/* recursos */
.res-list{display:flex;flex-direction:column;gap:7px}
.res{display:flex;align-items:center;gap:9px;padding:8px 10px;border-radius:10px;border:1px solid var(--border);cursor:pointer;transition:.15s;position:relative;background:var(--bg)}
.res:hover{border-color:var(--border-strong)}
.res.off{opacity:.5}
.res-ico{width:25px;height:25px;border-radius:7px;display:grid;place-items:center;font-size:12px;color:#fff;flex-shrink:0}
.res-ico.blue{background:var(--blue)}
.res-ico.violet{background:var(--violet)}
.res-ico.green{background:var(--green)}
.res-ico.amber{background:var(--amber)}
.res-name{font-size:14px;flex:1;line-height:1.3}
.res-badge{font-size:11px;padding:3px 9px;border-radius:10px;text-transform:uppercase;letter-spacing:.5px;white-space:nowrap;background:rgba(99,102,241,.18);color:#fff;border:1px solid rgba(99,102,241,.3)}
.res.dim .res-badge{display:none}
.res input{position:absolute;opacity:0}
.toggle{width:34px;height:19px;border-radius:20px;background:rgba(255,255,255,.14);position:relative;transition:.2s;flex-shrink:0}
.toggle::after{content:"";position:absolute;width:13px;height:13px;border-radius:50%;background:#dfe3ee;top:3px;left:3px;transition:.2s}
.res input:checked+.toggle{background:var(--accent)}
.res input:checked+.toggle::after{left:18px;background:#fff}
.opt-list{display:flex;flex-direction:column;gap:9px}
.hint{font-size:12.5px;color:#b7c0d4;margin:8px 0;line-height:1.55}
.hint-link{display:inline-block;margin:2px 0;padding:5px 12px;border-radius:8px;text-decoration:none;color:#fff;
  font-size:12px;font-weight:600;letter-spacing:.3px;background:rgba(99,102,241,.14);border:1px solid rgba(99,102,241,.5);transition:.2s}
.hint-link:hover{background:rgba(99,102,241,.26);border-color:var(--accent);filter:brightness(1.08)}
.hint-link:active{transform:translateY(1px)}
/* Guía de pasos: proceso intuitivo con iconos y color */
.steps{display:flex;flex-wrap:wrap;align-items:stretch;gap:8px;
  background:#171b29;border:1px solid rgba(99,102,241,.35);
  border-radius:12px;padding:12px 14px;margin:8px 0;
  box-shadow:0 8px 20px rgba(0,0,0,.35);}
.step{display:flex;align-items:center;gap:10px;flex:1 1 auto;min-width:150px}
.step-ico{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;flex-shrink:0;font-size:19px;
  background:rgba(99,102,241,.14);border:1px solid rgba(99,102,241,.35)}
.step-info{display:flex;flex-direction:column;gap:2px;min-width:0}
.step-tit{font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.7px;color:var(--accent)}
.step-desc{font-size:12.5px;color:var(--text);line-height:1.35;opacity:.92}
.step-arrow{display:flex;align-items:center;font-size:18px;color:var(--muted);flex-shrink:0}
@media(max-width:560px){.steps{flex-direction:column}.step-arrow{transform:rotate(90deg)}}
/* botón principal */
.btn-primary{position:relative;overflow:hidden;border:none;cursor:pointer;border-radius:12px;padding:14px;color:#fff;font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:16px;letter-spacing:.3px;
  background:linear-gradient(100deg,var(--accent),var(--accent2));transition:.2s;margin-top:2px}
.btn-primary:hover{background:linear-gradient(100deg,var(--accent),var(--accent2));filter:brightness(1.12)}
.btn-primary:active{transform:translateY(1px)}
.btn-primary.loading .btn-label{visibility:hidden}
/* generador de sesiones de aprendizaje */
.form input[type=file]{font-family:'Inter',system-ui,sans-serif;font-size:13px;color:var(--text);background:var(--bg);border:1px solid var(--border-strong);
  border-radius:10px;padding:10px;width:100%;cursor:pointer}
.form input[type=file]::file-selector-button{margin-right:10px;padding:7px 14px;border:1px solid var(--border-strong);
  border-radius:8px;background:var(--card-soft);color:var(--text);font-family:'Inter',sans-serif;font-size:12px;cursor:pointer}
.file-note{margin:6px 0 2px;color:#34d399;font-weight:600}
.sesiones-lista{list-style:none;display:flex;flex-direction:column;gap:8px;margin:14px 0}
.sesiones-lista li{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text);
  background:var(--card-soft);border:1px solid var(--border);border-radius:10px;padding:9px 13px;line-height:1.45}
.sesiones-lista .s-ok{color:#34d399;font-size:12px;flex:none}
.sesiones-lista .s-nombre{flex:1;min-width:0;overflow-wrap:anywhere}
.btn-suggest{width:100%;margin-top:14px;padding:12px;border-radius:11px;cursor:pointer;
  font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:14px;letter-spacing:.4px;color:#fff;
  background:rgba(99,102,241,.12);border:1px solid rgba(99,102,241,.45);transition:.2s}
.btn-suggest:hover{background:rgba(99,102,241,.22);border-color:var(--accent);filter:brightness(1.1)}
.btn-suggest:active{transform:translateY(1px)}
.btn-suggest:disabled{opacity:.6;cursor:default}
.btn-regen{width:auto;margin:0;padding:8px 14px;border-radius:10px;cursor:pointer;
  font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:12.5px;letter-spacing:.4px;color:#fff;
  background:rgba(99,102,241,.14);border:1px solid rgba(99,102,241,.45);transition:.2s;white-space:nowrap}
.btn-regen:hover{background:rgba(99,102,241,.24);border-color:var(--accent);filter:brightness(1.08)}
.btn-regen:active{transform:translateY(1px)}
.btn-regen.loading{opacity:.85;cursor:wait}
.btn-regen.loading::after{content:"";display:inline-block;width:13px;height:13px;margin-left:10px;vertical-align:middle;border-radius:50%;
  border:2px solid rgba(255,255,255,.35);border-top-color:#fff;animation:spin .8s linear infinite}
.btn-secondary{width:100%;margin-top:2px;padding:12px;border-radius:11px;cursor:pointer;
  font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:14px;letter-spacing:.4px;color:#fff;
  background:rgba(245,158,11,.16);border:1px solid rgba(245,158,11,.5);transition:.2s}
.btn-secondary:hover{background:rgba(245,158,11,.28);border-color:var(--accent);filter:brightness(1.08)}
.btn-secondary.btn-inline{width:auto;margin:0;padding:7px 14px;font-size:12px;white-space:nowrap}
.btn-secondary:active{transform:translateY(1px)}
.btn-secondary.loading{opacity:.85;cursor:wait}
.btn-secondary.loading::after{content:"";display:inline-block;width:13px;height:13px;margin-left:10px;vertical-align:middle;border-radius:50%;
  border:2px solid rgba(255,255,255,.35);border-top-color:#fff;animation:spin .8s linear infinite}
.btn-suggest.loading{opacity:.85;cursor:wait}
.btn-suggest.loading::after{content:"";display:inline-block;width:13px;height:13px;margin-left:10px;vertical-align:middle;border-radius:50%;
  border:2px solid rgba(255,255,255,.35);border-top-color:#fff;animation:spin .8s linear infinite}
.rec-note{margin:0;padding:9px 12px;border-radius:10px;background:var(--bg);
  border:1px solid var(--border);border-left:3px solid var(--accent);font-size:12.5px;color:var(--text);line-height:1.55}
.rec-note .rec-sug{display:inline-block;padding:2px 8px;margin-right:6px;border-radius:6px;
  background:rgba(99,102,241,.18);border:1px solid rgba(99,102,241,.5);color:#c7d2fe;font-weight:700;
  font-size:10.5px;letter-spacing:.6px;text-transform:uppercase}
.btn-primary.loading::after{content:"";position:absolute;inset:0;margin:auto;width:18px;height:18px;border-radius:50%;
  border:3px solid rgba(255,255,255,.35);border-top-color:#fff;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.side-note{font-size:12px;color:var(--muted);text-align:center}
/* Mensaje de progreso: tamaño legible con spinner animado visible */
.prog-status{
  position:relative;
  font-size:15px;font-weight:600;color:var(--text);
  background:rgba(99,102,241,.1);border:1px solid rgba(99,102,241,.35);
  border-radius:10px;padding:14px 16px 14px 48px;text-align:left;line-height:1.5;
  text-shadow:0 1px 2px rgba(0,0,0,.25)
}
.prog-status::before{
  content:"";position:absolute;left:14px;top:50%;width:22px;height:22px;margin-top:-11px;
  border-radius:50%;border:3px solid rgba(99,102,241,.22);border-top-color:var(--accent);
  animation:spin .8s linear infinite
}
/* ---------- MAIN / RESULTADOS ---------- */
.main{width:100%;max-width:1100px;margin:0 auto;display:flex;flex-direction:column;gap:16px}
/* ---------- RESULTADOS ---------- */
.results{display:flex;flex-direction:column;gap:14px;animation:fadeUp .4s ease}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}

/* ---------- simulación 3D ---------- */
.model-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px 0}
.model-titles h2{margin:0;font-family:'Space Grotesk',sans-serif;font-size:16px;color:var(--text)}
.model-sub{margin:3px 0 0;font-size:11.5px;color:var(--muted)}
.sim-caption{margin:12px 16px 0;padding:10px 13px;border-radius:10px;background:var(--bg);
  border:1px solid var(--border);border-left:3px solid var(--accent);font-size:12.5px;color:var(--text);line-height:1.55}

/* ---------- plan de sesión ---------- */
.sesion{padding:16px 18px 4px}
.sesion-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:8px}
.sesion-title{font-family:'Space Grotesk',sans-serif;font-size:15px;color:var(--text)}
.sesion-src{font-size:11px;color:var(--muted)}
.sesion-row{margin-bottom:12px}
.slab{display:inline-block;font-size:10px;text-transform:uppercase;letter-spacing:.9px;color:var(--accent);margin-bottom:6px;font-weight:600}
#sesionIndicador{margin:0;font-size:12.5px;color:var(--text);line-height:1.5}
.momentos{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.momento{background:var(--bg);border:1px solid var(--border);border-left:3px solid var(--accent);border-radius:10px;padding:10px 12px}
.mom-name{font-family:'Space Grotesk',sans-serif;font-size:12px;color:var(--accent);text-transform:uppercase;letter-spacing:.5px}
.momento p{margin:5px 0 0;font-size:11.5px;color:var(--muted);line-height:1.45}
.sesion-fmt{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin:6px 0}
.fmt-chip{font-family:'Space Grotesk',sans-serif;font-size:10.5px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;color:#c4b5fd;
  background:rgba(99,102,241,.16);border:1px solid rgba(99,102,241,.5);border-radius:20px;padding:4px 12px;white-space:nowrap}
.fmt-name{font-size:12.5px;color:var(--text);font-weight:600}
.fmt-just{margin:1px 0;font-size:11.5px;color:var(--muted);line-height:1.4}
#sesionActividad,#sesionRetro{margin:0;font-size:12.5px;color:var(--text);line-height:1.5}

/* ---------- experiencia 2D (formato elegido por la IA) ---------- */
.exp2d{padding:8px 2px 12px}
.tl{position:relative;margin:6px 2px 4px;padding-left:30px}
.tl::before{content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,var(--accent),#22d3ee);border-radius:2px}
.tl-item{position:relative;margin-bottom:14px}
.tl-item:last-child{margin-bottom:0}
.tl-item::before{content:"";position:absolute;left:-25px;top:6px;width:9px;height:9px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px var(--accent)}
.tl-date{display:inline-block;font-family:'Space Grotesk',sans-serif;font-size:10.5px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;color:#c4b5fd;background:rgba(99,102,241,.14);border:1px solid rgba(99,102,241,.45);border-radius:20px;padding:2px 10px;margin-bottom:5px}
.tl-body{background:var(--bg);border:1px solid var(--border);border-radius:10px;padding:9px 12px}
.tl-body strong{font-size:12.5px;color:var(--text);display:block}
.tl-body p{margin:3px 0 0;font-size:11.5px;color:var(--muted);line-height:1.45}
.flow{display:flex;flex-direction:column;align-items:center;padding:8px 4px}
.flow-arrow{color:var(--accent);font-size:15px;line-height:1;margin:4px 0;opacity:.85}
.flow-step{width:88%;max-width:440px;background:var(--bg);border:1px solid var(--border);border-left:3px solid var(--accent);border-radius:10px;padding:10px 13px}
.flow-step strong{font-size:12.5px;color:var(--text)}
.flow-step p{margin:3px 0 0;font-size:11.5px;color:var(--muted);line-height:1.45}
.flow-step em{display:inline-block;margin-top:5px;font-style:normal;font-size:9.5px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;color:#f59e0b;background:rgba(245,158,11,.12);border:1px solid rgba(245,158,11,.45);border-radius:20px;padding:2px 9px}
.flow-n{display:inline-flex;align-items:center;justify-content:center;width:18px;height:18px;border-radius:50%;background:var(--accent);color:#fff;font-size:10.5px;font-weight:700;margin-right:7px}
.cmp{margin:6px 2px;border:1px solid var(--border);border-radius:10px;overflow:hidden}
.cmp-row{display:grid;grid-template-columns:1.1fr 1fr 1fr;align-items:stretch}
.cmp:not(.cmp-dbl) .cmp-row{grid-template-columns:1fr 1fr}
.cmp-row > span{padding:9px 11px;font-size:11.5px;line-height:1.4;border-top:1px solid var(--border);border-left:1px solid var(--border)}
.cmp-row > span:first-child{border-left:none}
.cmp-head > span{font-family:'Space Grotesk',sans-serif;font-size:11px;font-weight:700;letter-spacing:.4px;color:#eef1ff;background:rgba(99,102,241,.14)}
.cmp-crit{color:var(--muted);font-weight:600}
.cmp-a,.cmp-b{color:var(--text)}
.tree{width:100%;height:auto;max-height:380px;display:block}
.tree-line{stroke:#4c5378;stroke-width:1.6;stroke-dasharray:4 4}
.tree-node circle{fill:#7c3aed;stroke:#fff;stroke-width:1.2}
.tree-node text{fill:#fff;font-size:12px;font-weight:600}
.exp-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:10px;padding:6px 2px}
.exp-card{display:flex;flex-direction:column;align-items:flex-start;gap:6px;text-align:left;background:var(--bg);border:1px solid var(--border);border-radius:11px;padding:12px;cursor:pointer;color:var(--text);font-family:inherit;transition:.2s}
.exp-card:hover{border-color:var(--accent);transform:translateY(-1px)}
.exp-card.open{border-color:var(--accent);background:rgba(99,102,241,.08)}
.exp-ico{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:9px;font-size:16px;color:#fff;background:linear-gradient(135deg,var(--accent),#2563eb)}
.exp-card strong{font-size:12.5px}
.exp-desc{margin:0;font-size:11.5px;color:var(--muted);line-height:1.4}
.exp-fn{margin:2px 0 0;font-size:11.5px;color:#a5b4fc;line-height:1.45}
.exp-fn span{font-weight:700;color:#c4b5fd}
.clf{padding:6px 2px}
.clf-hint,.asc-hint{font-size:11px;color:var(--muted);margin-bottom:8px}
.clf-cats{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.clf-cat{font-family:'Space Grotesk',sans-serif;font-size:11.5px;font-weight:600;color:#eef1ff;background:rgba(99,102,241,.16);border:1px solid rgba(99,102,241,.5);border-radius:20px;padding:6px 14px;cursor:pointer}
.clf-cat:hover{border-color:var(--accent)}
.clf-items{display:flex;flex-wrap:wrap;gap:9px}
.clf-item{display:flex;align-items:center;gap:8px;background:var(--bg);border:1px solid var(--border);border-radius:9px;padding:7px 12px;font-size:12px;color:var(--text);cursor:pointer}
.clf-item.sel{border-color:var(--accent);background:rgba(99,102,241,.12)}
.clf-msg.ok{color:#4ade80}
.clf-msg.bad{color:#fb7185}
.asc{padding:6px 2px}
.asc-cols{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.asc-col{display:flex;flex-direction:column;gap:8px}
.asc-col button{width:100%;text-align:left;background:var(--bg);border:1px solid var(--border);border-radius:9px;padding:9px 12px;font-size:12px;color:var(--text);cursor:pointer;font-family:inherit}
.asc-col button:hover{border-color:var(--accent)}
.asc-col button.sel{border-color:var(--accent);background:rgba(99,102,241,.12)}
.asc-col button.ok{border-color:#10b981;background:rgba(16,185,129,.12)}
.asc-col button.bad{border-color:#fb7185;background:rgba(251,113,133,.1)}
@media(max-width:560px){.asc-cols{grid-template-columns:1fr}}
.puntos{margin:0;padding-left:18px;display:grid;grid-template-columns:1fr 1fr;gap:4px 12px}
.puntos li{font-size:12.5px;color:var(--text);line-height:1.5}
@media (max-width:860px){.momentos{grid-template-columns:1fr}.puntos{grid-template-columns:1fr}}
/* viewport 3D */
.model{position:relative;overflow:hidden;padding:0}
#viewport{width:100%;height:clamp(340px,52vh,540px);min-height:340px;position:relative;overflow:hidden;background:var(--bg2)}
#viewport canvas{display:block;touch-action:none}
.model-toolbar{display:flex;align-items:center;gap:8px;padding:10px 13px;border-top:1px solid var(--border);flex-wrap:wrap}
.tb-btn{padding:7px 13px;border-radius:9px;cursor:pointer;font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:12px;color:var(--muted);
  background:var(--bg);border:1px solid var(--border-strong);transition:.15s}
.tb-btn:hover{border-color:#6d768e}
.tb-btn.danger{color:var(--red);border-color:rgba(248,113,113,.4);background:rgba(248,113,113,.1)}
.tb-btn.danger:hover{background:rgba(248,113,113,.2)}
.tb-btn.danger.active{background:var(--red);color:#fff;border-color:var(--red)}
.tb-tip{margin-left:auto;font-size:11px;color:var(--muted)}
.tooltip{position:absolute;z-index:5;max-width:240px;padding:9px 12px;border-radius:11px;pointer-events:none;
  background:var(--card);border:1px solid var(--border-strong);box-shadow:0 10px 34px rgba(0,0,0,.45);font-size:12px;line-height:1.45;color:var(--text)}
.tooltip .tt-title{font-weight:700;font-family:'Space Grotesk',sans-serif;display:flex;align-items:center;gap:6px;margin-bottom:3px}
.tooltip .tt-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}
.tooltip .tt-sub{color:var(--muted);font-size:11px}
/* tabs de recursos */
.resource-tabs{display:flex;gap:8px;flex-wrap:wrap}
.rtab{padding:8px 15px;border-radius:10px;cursor:pointer;font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:12px;color:var(--muted);
  background:var(--card);border:1px solid var(--border-strong);transition:.15s}
.rtab:hover{border-color:#6d768e}
.rtab.active{color:#fff;border-color:transparent;background:var(--accent)}
/* paneles de recursos */
.res-panels .panel{display:none;animation:fadeUp .3s ease}
.res-panels .panel.active{display:block}
/* mapa conceptual */
.map-wrap{overflow:hidden}
.map-wrap svg{width:100%;height:auto}
.map-link{stroke:#4c5378;stroke-width:1.5;stroke-dasharray:4 4}
.map-node{cursor:pointer}
.map-node circle{transition:.15s}
.map-node:hover circle{filter:brightness(1.25)}
.map-node text{fill:#fff;font-family:'Inter',sans-serif;font-size:11px;font-weight:600}
.map-node.central circle{stroke:#fff;stroke-width:1.3}
.map-side{margin-top:14px;display:flex;flex-direction:column;gap:7px}
.map-item{padding:10px 12px;border-radius:10px;background:var(--bg);border:1px solid var(--border);cursor:pointer;transition:.15s}
.map-item:hover,.map-item.active{border-color:var(--accent);background:rgba(99,102,241,.12)}
.map-item strong{display:block;font-size:12.5px;font-family:'Space Grotesk';margin-bottom:2px}
.map-item strong .dotx{font-size:10px;margin-right:4px}
.map-item p{display:none;font-size:11.5px;color:var(--muted);line-height:1.5;margin-top:2px}
.map-item.active p{display:block}
.panel-title{font-family:'Space Grotesk',sans-serif;font-size:13px;font-weight:600;margin-bottom:11px;display:flex;align-items:center;gap:8px}
.panel-title .dot{width:24px;height:24px;border-radius:7px;display:grid;place-items:center;color:#fff;font-size:12px;background:linear-gradient(135deg,var(--blue),var(--accent2))}
/* cuestionario interactivo */
.quiz-list{display:flex;flex-direction:column;gap:12px;padding:14px 16px}
.quiz-q{padding:12px 14px;border-radius:11px;background:var(--bg);border:1px solid var(--border)}
.quiz-text{font-size:13.5px;color:var(--text);font-weight:600;margin-bottom:9px;line-height:1.45}
.quiz-opt-list{display:grid;grid-template-columns:1fr 1fr;gap:7px}
.quiz-opt{padding:8px 11px;border-radius:9px;cursor:pointer;text-align:left;font-size:12.5px;color:var(--text);
  background:var(--card-soft);border:1px solid var(--border-strong);transition:.15s}
.quiz-opt:hover:not(:disabled){border-color:var(--accent)}
.quiz-opt:disabled{cursor:default;opacity:.75}
.quiz-opt.ok{border-color:var(--green);background:rgba(16,185,129,.14);color:#a7f3d0}
.quiz-opt.bad{border-color:var(--red);background:rgba(248,113,113,.12);color:#fecaca}
.quiz-explica{margin:9px 0 0;font-size:12px;color:var(--muted);line-height:1.5}
@media (max-width:640px){.quiz-opt-list{grid-template-columns:1fr}}
/* guía de laboratorio */
.guia-list{list-style:none;counter-reset:paso;display:flex;flex-direction:column;gap:9px;padding:14px 16px}
.guia-list li{counter-increment:paso;position:relative;padding:11px 13px 11px 44px;border-radius:11px;background:var(--bg);border:1px solid var(--border)}
.guia-list li::before{content:counter(paso);position:absolute;left:12px;top:11px;width:22px;height:22px;border-radius:7px;
  display:grid;place-items:center;font-size:11.5px;font-weight:700;color:#fff;background:var(--amber)}
.guia-list strong{font-family:'Space Grotesk',sans-serif;font-size:12.5px;color:var(--amber);text-transform:uppercase;letter-spacing:.5px}
.guia-list p{margin:3px 0 0;font-size:12.5px;color:var(--muted);line-height:1.5}
/* toast */
.toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%);z-index:50;padding:11px 19px;border-radius:12px;font-size:12.5px;color:#fff;
  background:#1c2332;border:1px solid var(--border-strong);box-shadow:0 12px 34px rgba(0,0,0,.5);animation:fadeUp .3s ease}
/* scrollbar */
::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:8px}
::-webkit-scrollbar-track{background:transparent}
/* responsive */
@media(max-width:980px){
  .app{padding-top:24px;gap:20px}
  .tb-tip{display:none}
}

/* =========================================================
   PANTALLA INICIAL · 6 TARJETAS
   ========================================================= */
.home-view{display:flex;flex-direction:column;align-items:center;width:100%;max-width:1040px;gap:22px;animation:fadeUp .5s ease}
.home-tag{font-family:'Space Grotesk',sans-serif;font-size:clamp(14px,1.9vw,17px);font-weight:600;letter-spacing:.3px;color:var(--muted);text-align:center;margin:4px 0 2px}
.cards-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;width:100%;max-width:85%;margin:0 auto}
@media(max-width:860px){.cards-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:540px){.cards-grid{grid-template-columns:1fr}}

.feat-card{position:relative;overflow:hidden;text-align:center;align-items:center;cursor:pointer;color:var(--text);font-family:inherit;
  background:var(--card);border:1px solid var(--border);border-radius:16px;padding:26px 20px;min-height:170px;
  display:flex;flex-direction:column;gap:14px;transition:.22s}
.feat-card::before{content:"";position:absolute;inset:0;opacity:.13;background:var(--card-grad);transition:opacity .22s}
.feat-card:hover{transform:translateY(-5px);border-color:var(--border-strong);box-shadow:0 18px 42px rgba(0,0,0,.45)}
.feat-card:hover::before{opacity:.28}
.feat-card:active{transform:translateY(-1px)}
.feat-card:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.feat-ico{position:relative;width:58px;height:58px;border-radius:15px;display:grid;place-items:center;
  background:var(--card-grad);color:#fff;box-shadow:0 8px 22px rgba(0,0,0,.4)}
.feat-ico svg{width:30px;height:30px}
.feat-title{position:relative;font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:17px;line-height:1.3;
  letter-spacing:.3px;text-transform:uppercase;max-width:240px;color:#d7dbe6}
.feat-desc{display:none}

/* degradados por tarjeta (misma familia visual: índigo/azul/violeta/teal del logo) */
.feat-card.c1{--card-grad:linear-gradient(135deg,#6366f1,#8b5cf6)}
.feat-card.c2{--card-grad:linear-gradient(135deg,#2563eb,#38bdf8)}
.feat-card.c3{--card-grad:linear-gradient(135deg,#8b5cf6,#a855f7)}
.feat-card.c4{--card-grad:linear-gradient(135deg,#1d4ed8,#6366f1)}
.feat-card.c5{--card-grad:linear-gradient(135deg,#1e7e80,#8b5cf6)}
  .feat-card.c6{--card-grad:linear-gradient(135deg,#2eb6b8,#6366f1)}
  .feat-card.c7{--card-grad:linear-gradient(135deg,#f59e0b,#ec4899)}
  .feat-card.c8{--card-grad:linear-gradient(135deg,#0d9488,#22c55e)}
  .feat-card.c9{--card-grad:linear-gradient(135deg,#e11d48,#f43f5e)}

/* botón volver: degradado del mismo estilo de la UI (índigo -> azul),
   relleno visible y identificable sobre el fondo oscuro */
.back-btn{align-self:flex-start;cursor:pointer;color:#fff;font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:13px;letter-spacing:.3px;
  padding:8px 18px;border-radius:11px;border:1px solid rgba(255,255,255,.16);
  background:linear-gradient(135deg,var(--accent) 0%,var(--accent2) 55%,#4338ca 100%);
  box-shadow:0 4px 14px rgba(79,70,229,.35), inset 0 1px 0 rgba(255,255,255,.18);
  transition:.18s}
.back-btn:hover{filter:brightness(1.12);box-shadow:0 6px 20px rgba(79,70,229,.5)}

/* vistas de módulo */
.module-view{margin:0 auto;width:100%;max-width:820px;animation:fadeUp .35s ease}
.module-view.wide{max-width:1100px}
.apiKeySlot{display:contents}

/* ===== Bloque "Gemini API (gratis)": mismo ancho y diseño que la tarjeta
   que le sigue. Sin neón. Aplica a toda la app. ===== */
#apiKeyWrap{
  width:100%;max-width:820px;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:20px;
  display:flex;flex-direction:column;gap:12px;
}
#apiKeyWrap .step-head .step-num{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M21 2l-9.6 9.6'/%3E%3Ccircle cx='7.5' cy='15.5' r='5.5'/%3E%3Cpath d='m15.5 7.5 3 3-2 2-3-3 2-2z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:center;background-size:14px;
}

/* flujo de módulos en preparación */
.mod-flow{display:flex;flex-wrap:wrap;align-items:center;gap:8px 10px;margin:6px 0;
  font-family:'Space Grotesk',sans-serif;font-size:12.5px;font-weight:600;color:#cdd6ea}
.mod-flow span:not(.mod-arrow){background:var(--card-soft);border:1px solid var(--border);border-radius:9px;padding:7px 13px}
.mod-arrow{color:var(--accent);font-weight:700}
.mod-note{margin-top:6px;padding:11px 14px;border-radius:11px;background:var(--card-soft);
  border:1px solid var(--border);border-left:3px solid var(--accent);font-size:12.5px;color:var(--text);line-height:1.55}

/* pie de pantalla inicial */
.home-foot{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:8px;
  font-size:12.5px;letter-spacing:.5px;color:var(--muted);opacity:.7;font-family:'Space Grotesk',sans-serif}
.home-foot-text{display:flex;flex-direction:column;align-items:center;gap:5px;text-align:center}
.home-foot-logo{width:38px;height:38px;border-radius:7px;object-fit:contain;filter:drop-shadow(0 0 4px rgba(210,215,230,.3))}
.home-foot:hover{opacity:.8}