*{box-sizing:border-box}body{margin:0;font-family:Arial;background:linear-gradient(135deg,#eef5f8,#fff);color:#183042}.head{width:min(1100px,calc(100% - 24px));margin:14px auto 0;background:#fff;border-radius:20px 20px 0 0;padding:15px;display:flex;justify-content:space-between;align-items:center}.head img{width:100px}.top{width:min(1100px,calc(100% - 24px));margin:auto;background:#12345b;color:#fff;padding:12px 18px;display:flex;justify-content:space-between}.score{background:#fff;color:#12345b;border-radius:999px;padding:7px 12px;font-weight:bold}.shell{width:min(1100px,calc(100% - 24px));margin:auto;padding:22px}.hero,.card,.mission{background:#fff;border-radius:22px;box-shadow:0 12px 30px rgba(18,52,91,.14)}.hero{display:grid;grid-template-columns:1.2fr .8fr;gap:20px;padding:32px;align-items:center}.hero img{width:100%}.hero h2{font-size:2.5rem;color:#12345b}.grid{display:grid;grid-template-columns:1fr 1fr;gap:15px;margin-top:18px}.mission{padding:18px}.btn{display:inline-block;border:0;border-radius:12px;padding:11px 16px;background:#12345b;color:#fff;text-decoration:none;font-weight:bold;cursor:pointer}.card{padding:28px}.choice{width:100%;padding:13px;margin:6px 0;border:2px solid #d8e5ec;border-radius:12px;background:#fff;cursor:pointer;text-align:left}.ok{background:#e6f7ed;color:#17663f;padding:12px;border-radius:12px}.bad{background:#fff0ef;color:#922f2f;padding:12px;border-radius:12px}.hidden{display:none}.barbox{height:12px;background:#e6eef2;border-radius:99px;overflow:hidden}.bar{height:100%;background:#17a6a1;width:0}.notice{background:#fff7e7;border-left:6px solid #f28c3a;padding:12px;border-radius:10px}@media(max-width:750px){.hero,.grid{grid-template-columns:1fr}.head img{width:75px}}

/* Registro académico, acceso y resultados */
.eyebrow-db{font-size:.78rem;letter-spacing:.08em;font-weight:900;color:#159d99}
.student-gate{position:fixed;inset:0;z-index:9999;background:rgba(8,28,48,.87);backdrop-filter:blur(7px);display:grid;place-items:center;padding:18px}
.student-modal{width:min(600px,100%);background:#fff;border-radius:25px;padding:clamp(22px,5vw,38px);box-shadow:0 26px 80px rgba(0,0,0,.36)}
.student-modal-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px}
.student-modal h2{margin:5px 0 7px;color:#12345b;font-size:2rem}
.student-modal p{line-height:1.45}
.student-lock{width:76px;height:76px;flex:0 0 76px;border-radius:22px;background:linear-gradient(135deg,#18a7a2,#7045c9);color:#fff;display:grid;place-items:center;font-size:1.6rem;font-weight:900}
.student-form{display:grid;gap:13px;margin-top:20px}
.student-form label{font-weight:800;color:#12345b;display:grid;gap:6px}
.student-form input{width:100%;padding:13px 14px;border:2px solid #c8d9e3;border-radius:12px;font:inherit;color:#1b2f3e}
.student-form input:focus{outline:3px solid rgba(24,167,162,.15);border-color:#18a7a2}
.form-error{min-height:22px;color:#a12626;font-weight:800}
.privacy-note{font-size:.82rem;color:#667a86;margin-bottom:0}
.db-btn{border:0;border-radius:13px;padding:12px 18px;font-weight:900;cursor:pointer}
.db-btn:disabled{opacity:.55;cursor:not-allowed}
.db-green{background:#2f915b;color:#fff}.db-alt{background:#dfeaf1;color:#12345b}.db-wide{width:100%}
.student-chip{max-width:360px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;border:1px solid rgba(255,255,255,.38);border-radius:999px;background:rgba(255,255,255,.14);color:#fff;padding:8px 12px;font-weight:800;cursor:pointer}
.student-panel{margin:20px 0}.student-panel:empty{display:none}
.student-summary{background:#fff;border-radius:20px 20px 0 0;padding:18px 20px;box-shadow:0 14px 35px rgba(18,52,91,.12);display:flex;justify-content:space-between;align-items:center;gap:20px}
.student-summary h3{margin:4px 0;color:#12345b}.student-summary p{margin:0;color:#667a86}
.summary-score{background:#12345b;color:#fff;border-radius:17px;padding:13px 18px;text-align:center;min-width:155px}.summary-score strong{display:block;font-size:1.45rem}
.access-ok{padding:11px 16px;background:#e7f7ed;color:#17663f;font-weight:800}
.mini-scores{display:grid;grid-template-columns:repeat(5,1fr);gap:1px;background:#cfe0e9}
.mini-scores span{background:#f8fbfd;padding:12px;text-align:center;color:#12345b}
.results-card{margin-top:22px;padding:22px;border:3px solid #d6e5ed;border-radius:22px;background:#f8fbfd}
.results-head{display:flex;justify-content:space-between;align-items:center;gap:20px}
.results-head h3{font-size:1.45rem;color:#12345b;margin:4px 0}.results-head p{margin:0;color:#667a86}
.final-grade{background:linear-gradient(135deg,#12345b,#18a7a2);color:#fff;padding:14px 20px;border-radius:18px;text-align:center;min-width:150px}.final-grade strong{font-size:1.7rem;display:block}.final-grade span{font-weight:800}
.results-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin:18px 0}.results-grid div{background:#fff;border:1px solid #d6e3ea;border-radius:14px;padding:12px;text-align:center}.results-grid span{display:block;color:#667a86;font-size:.83rem}.results-grid strong{font-size:1.15rem;color:#12345b}
.send-status{padding:13px 15px;border-radius:13px;background:#e8f1f6;color:#12345b;font-weight:800}.send-status.ok{background:#e6f7ed;color:#17663f}.send-status.working{background:#fff7e7;color:#8b5a00}
.send-actions{display:grid;grid-template-columns:1.6fr 1fr;gap:10px;margin-top:14px}
.hidden-submit-frame,.hidden-submit-form{position:absolute!important;width:1px!important;height:1px!important;opacity:0!important;pointer-events:none!important;border:0!important}
@media(max-width:800px){.top{flex-wrap:wrap}.student-chip{order:3;width:100%;max-width:none}.student-summary,.results-head{flex-direction:column;align-items:stretch}.summary-score,.final-grade{width:100%}.mini-scores,.results-grid{grid-template-columns:repeat(2,1fr)}.send-actions{grid-template-columns:1fr}}
@media(max-width:520px){.student-modal-head{display:block}.student-lock{margin-top:12px}.mini-scores,.results-grid{grid-template-columns:1fr}}


/* ============================================================
   VILLAIA 2.0 - asistente guiado (portado del modelo maestro).
   No modificar sin revisar AGENTS.md seccion 6.
   ============================================================ */
.assistant-wrap{position:fixed;right:22px;bottom:20px;z-index:8000;font-family:inherit}
.assistant-launcher{width:76px;height:76px;border-radius:50%;border:3px solid rgba(255,255,255,.92);background:linear-gradient(145deg,#0b5ea8,#16a7a1);box-shadow:0 14px 34px rgba(12,69,113,.38);cursor:pointer;display:grid;place-items:center;position:relative;overflow:visible;transition:.25s}
.assistant-launcher:hover{transform:translateY(-3px) scale(1.03)}
.bot-mini{display:none}.bot-mini:before{display:none}.bot-mini:after{display:none}
.bot-mini i{display:none}.assistant-ping{position:absolute;right:2px;top:3px;width:16px;height:16px;background:#48c774;border:3px solid #fff;border-radius:50%;animation:assistantPulse 1.7s infinite}
.assistant-card{position:absolute;right:0;bottom:86px;width:min(380px,calc(100vw - 28px));background:rgba(255,255,255,.98);border:1px solid rgba(24,73,111,.14);border-radius:24px;box-shadow:0 26px 70px rgba(13,51,83,.28);overflow:hidden;opacity:0;transform:translateY(18px) scale(.96);pointer-events:none;transition:.27s cubic-bezier(.2,.8,.2,1)}
.assistant-open .assistant-card{opacity:1;transform:none;pointer-events:auto}.assistant-open .assistant-launcher{opacity:.3;transform:scale(.88)}
.assistant-head{display:flex;align-items:center;gap:11px;padding:14px 14px 11px;background:linear-gradient(125deg,#103e68,#0d78b8 58%,#16a7a1);color:#fff}
.assistant-identity{display:grid;line-height:1.1;flex:1}.assistant-identity strong{font-size:1rem;letter-spacing:.08em}.assistant-identity span{font-size:.76rem;opacity:.85;margin-top:3px}
.assistant-icon-btn{border:0;width:34px;height:34px;border-radius:50%;background:rgba(255,255,255,.16);color:#fff;font-size:1.35rem;cursor:pointer}.assistant-icon-btn:hover{background:rgba(255,255,255,.26)}
.bot-avatar{width:56px;height:56px;border-radius:18px;background:rgba(255,255,255,.98);display:grid;place-items:center;position:relative;box-shadow:0 5px 16px rgba(5,31,55,.22),inset 0 0 0 1px rgba(255,255,255,.8);overflow:hidden;animation:botFloat 2.8s ease-in-out infinite;flex:0 0 auto}.bot-antenna{position:absolute;top:-9px;width:3px;height:11px;background:#fff}.bot-antenna:after{content:"";position:absolute;left:-3px;top:-4px;width:8px;height:8px;background:#ffb02e;border-radius:50%}.bot-face{width:34px;height:27px;border:2px solid #165985;border-radius:11px;display:flex;align-items:center;justify-content:center;gap:7px;position:relative}.bot-face span{width:6px;height:8px;border-radius:50%;background:#165985;animation:botBlink 4.3s infinite}.bot-face b{position:absolute;width:12px;height:3px;background:#16a7a1;border-radius:4px;bottom:4px;animation:botTalk 1.1s infinite}
.assistant-body{padding:15px 16px 10px}.assistant-status{display:flex;align-items:center;gap:7px;color:#597180;font-size:.72rem;text-transform:uppercase;letter-spacing:.05em;margin-bottom:9px}.assistant-status span{width:8px;height:8px;border-radius:50%;background:#48c774;box-shadow:0 0 0 5px rgba(72,199,116,.13)}.assistant-message{min-height:92px;background:#f2f8fb;border:1px solid #dcebf2;padding:14px 15px;border-radius:16px 16px 16px 4px;color:#173447;font-weight:750;line-height:1.45;font-size:.97rem;position:relative}.assistant-message:after{content:"";display:inline-block;width:6px;height:1.05em;margin-left:3px;background:#16a7a1;vertical-align:-2px;animation:cursorBlink .75s infinite}
.assistant-dots{display:flex;justify-content:center;gap:6px;margin-top:11px}.assistant-dots button{width:8px;height:8px;padding:0;border:0;border-radius:50%;background:#c5d7e2;cursor:pointer}.assistant-dots button.active{width:22px;border-radius:9px;background:#16a7a1}
.assistant-actions{display:grid;grid-template-columns:.9fr .9fr 1.25fr;gap:7px;padding:11px 12px 13px;border-top:1px solid #e5eef3}.assistant-action{border:0;border-radius:11px;padding:10px 8px;background:#eaf2f7;color:#133f65;font-weight:850;cursor:pointer;font-size:.8rem}.assistant-action:hover{filter:brightness(.97)}.assistant-action.primary{background:#123f69;color:#fff}
.assistant-highlight{position:relative;z-index:35!important;outline:4px solid rgba(255,176,46,.82)!important;outline-offset:5px!important;border-radius:14px;box-shadow:0 0 0 10px rgba(255,176,46,.15)!important;animation:targetPulse 1.4s infinite}
.assistant-confetti{position:fixed;inset:0;z-index:9998;pointer-events:none;overflow:hidden}.assistant-confetti i{position:absolute;top:-20px;width:10px;height:17px;background:#ffb02e;animation:confettiFall 1.55s cubic-bezier(.2,.7,.3,1) forwards}.assistant-confetti i:nth-child(3n){background:#16a7a1}.assistant-confetti i:nth-child(3n+1){background:#1e6fb9}.assistant-confetti i:nth-child(4n){background:#8b4db3}
@keyframes botBlink{0%,45%,49%,100%{transform:scaleY(1)}47%{transform:scaleY(.1)}}@keyframes botTalk{0%,100%{transform:scaleX(.65)}50%{transform:scaleX(1)}}@keyframes botFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-4px)}}@keyframes assistantPulse{0%,100%{box-shadow:0 0 0 0 rgba(72,199,116,.45)}50%{box-shadow:0 0 0 8px rgba(72,199,116,0)}}@keyframes cursorBlink{50%{opacity:0}}@keyframes targetPulse{50%{outline-color:rgba(255,176,46,.3)}}@keyframes confettiFall{to{top:105vh;transform:translateY(40px) rotate(600deg)}}
@media(max-width:600px){.assistant-wrap{right:12px;bottom:12px}.assistant-card{bottom:78px}.assistant-launcher{width:62px;height:62px}.assistant-actions{grid-template-columns:1fr 1fr}.assistant-action.primary{grid-column:1/-1}.demo-mode-ribbon{left:8px;bottom:8px}}
@media(prefers-reduced-motion:reduce){.bot-avatar,.assistant-ping,.assistant-highlight,.assistant-confetti i{animation:none!important}}


.villaia-launcher-img{
  width:88px;
  height:88px;
  object-fit:contain;
  display:block;
  transform:translateY(2px);
  filter:drop-shadow(0 5px 5px rgba(0,29,54,.2));
  transition:transform .25s ease;
}
.assistant-launcher:hover .villaia-launcher-img{transform:translateY(-1px) scale(1.04)}
.villaia-brand-avatar img{
  width:64px;
  height:64px;
  object-fit:contain;
  display:block;
  transform:translateY(2px);
  filter:drop-shadow(0 3px 4px rgba(0,36,64,.18));
}
.villaia-brand-avatar{
  border:2px solid rgba(255,255,255,.8);
}
.assistant-head{
  position:relative;
}
.assistant-head:after{
  content:"ASISTENTE EDUCATIVO";
  position:absolute;
  right:52px;
  top:8px;
  font-size:.48rem;
  letter-spacing:.13em;
  font-weight:900;
  opacity:.48;
}

@media(max-width:600px){
  .villaia-launcher-img{width:74px;height:74px}
  .bot-avatar{width:50px;height:50px}
  .villaia-brand-avatar img{width:58px;height:58px}
  .assistant-head:after{display:none}
}