:root{--coral: #f26b4e;--coral-dark: #d9553a;--lila: #9b93e8;--lila-soft: #ecebfb;--celeste: #cfeaf1;--amarillo: #e8cc7a;--amarillo-soft: #faf1d6;--bg: #fdf8f3;--surface: #ffffff;--text: #2d2a32;--muted: #7a7480;--border: #ece4dc;--danger: #c0392b;--radius: 14px;--shadow: 0 1px 3px rgba(45, 42, 50, .08);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--text);background:var(--bg);line-height:1.5}*{box-sizing:border-box}body{margin:0;min-height:100dvh}h1{font-size:1.4rem;margin:0}h2{font-size:1.15rem;margin:1.8rem 0 .3rem}h3{margin:0 0 .5rem;font-size:1rem}a{color:var(--coral-dark)}input,select,textarea{font:inherit;color:inherit;border:1px solid var(--border);border-radius:10px;padding:.6rem .75rem;background:var(--surface);width:100%}input:focus,select:focus,textarea:focus{outline:2px solid var(--lila);outline-offset:1px}button{font:inherit;cursor:pointer;border:none;border-radius:999px;padding:.6rem 1.2rem}button:disabled{opacity:.55;cursor:default}.primary{background:var(--coral);color:#fff;font-weight:600}.primary:hover:not(:disabled){background:var(--coral-dark)}.primary.big{padding:.75rem 1.5rem;font-size:1.05rem}.secondary,.button-link{background:var(--lila-soft);color:#4a4290;font-weight:600;text-decoration:none;border-radius:999px;padding:.6rem 1.2rem}.small{padding:.35rem .8rem;font-size:.9rem}.link{background:none;padding:.2rem .4rem;color:var(--coral-dark);text-decoration:underline}.icon-btn{background:none;color:var(--muted);padding:.4rem .6rem}.icon-btn:hover{color:var(--danger)}.muted{color:var(--muted)}p.small,.small.muted{font-size:.85rem}.error{color:var(--danger);font-size:.9rem;margin:.3rem 0}.center{display:grid;place-items:center;min-height:60dvh}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:1rem}.app{min-height:100dvh;display:flex;flex-direction:column}.topbar{display:flex;align-items:center;justify-content:space-between;padding:.7rem 1rem;background:var(--surface);border-bottom:3px solid var(--celeste);position:sticky;top:0;z-index:5}.brand{font-weight:700;color:var(--text);text-decoration:none}.brand:before{content:"";display:inline-block;width:.7rem;height:.7rem;border-radius:50%;background:var(--coral);box-shadow:.9rem 0 0 var(--lila),1.8rem 0 0 var(--amarillo);margin-right:2.4rem}.topbar nav{display:flex;gap:.6rem;align-items:center}.topbar nav a{text-decoration:none;font-weight:600}main{flex:1;display:flex;flex-direction:column}.page{width:100%;max-width:760px;margin:0 auto;padding:1.2rem 1rem 3rem}.page.admin{max-width:1150px}.page-head{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;margin-bottom:1rem}.auth-page{min-height:100dvh;display:grid;place-items:center;padding:1rem;background:linear-gradient(160deg,var(--celeste) 0%,var(--bg) 45%,var(--amarillo-soft) 100%)}.auth-card{width:100%;max-width:380px;display:flex;flex-direction:column;gap:.8rem;padding:1.6rem}.auth-card h1{color:var(--coral-dark)}label{display:flex;flex-direction:column;gap:.25rem;font-size:.9rem;font-weight:600}.practice-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.6rem}.practice-item{display:flex;align-items:center;padding:0}.practice-link{flex:1;display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:.9rem 1rem;color:inherit;text-decoration:none}.empty{text-align:center}.chip{display:inline-block;font-size:.78rem;font-weight:600;padding:.15rem .6rem;border-radius:999px;margin-left:.4rem;white-space:nowrap}.chip-en_curso{background:var(--celeste);color:#1f5f6e}.chip-completa{background:var(--amarillo);color:#5c4710}.chip-cerrada_por_tope{background:#eee;color:var(--muted)}.chip-admin,.chip-active{background:var(--lila-soft);color:#4a4290}.chat{flex:1;display:flex;flex-direction:column;width:100%;max-width:760px;margin:0 auto;height:calc(100dvh - 52px)}.chat-head{display:flex;align-items:center;gap:.6rem;padding:.6rem 1rem;border-bottom:1px solid var(--border)}.chat-title{flex:1;display:flex;align-items:center;flex-wrap:wrap;font-size:.95rem}.back{text-decoration:none;font-size:1.3rem;color:var(--text)}.chat-scroll{flex:1;overflow-y:auto;padding:1rem;display:flex;flex-direction:column;gap:.6rem}.bubble{max-width:85%;padding:.7rem .95rem;border-radius:18px;white-space:pre-wrap;overflow-wrap:anywhere;box-shadow:var(--shadow)}.bubble-assistant{align-self:flex-start;background:var(--surface);border:1px solid var(--border);border-bottom-left-radius:6px}.bubble-user{align-self:flex-end;background:var(--coral);color:#fff;border-bottom-right-radius:6px}.typing{display:flex;gap:.3rem;align-items:center}.dot{width:.45rem;height:.45rem;border-radius:50%;background:var(--lila);animation:blink 1.2s infinite ease-in-out}.dot:nth-child(2){animation-delay:.2s}.dot:nth-child(3){animation-delay:.4s}@keyframes blink{0%,80%,to{opacity:.25;transform:translateY(0)}40%{opacity:1;transform:translateY(-3px)}}.notice{margin:0 1rem .5rem;padding:.6rem .9rem;border-radius:10px;background:var(--amarillo-soft);border:1px solid var(--amarillo);font-size:.92rem}.composer{display:flex;gap:.5rem;align-items:flex-end;padding:.7rem 1rem calc(.7rem + env(safe-area-inset-bottom));border-top:1px solid var(--border);background:var(--bg);position:sticky;bottom:0}.composer textarea{resize:none;min-height:2.75rem;max-height:9rem;field-sizing:content;border-radius:18px}.ended{padding:1rem;border-top:1px solid var(--border);text-align:center;background:var(--lila-soft)}.ended p{margin:0 0 .7rem}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:.8rem}.stat{display:flex;flex-direction:column;gap:.35rem}.stat strong{font-size:1.5rem}.stat strong.model{font-size:1rem}.meter{height:6px;background:var(--lila-soft);border-radius:999px;overflow:hidden}.meter div{height:100%;background:var(--coral)}.inline{display:flex;gap:.4rem}.model{font-family:ui-monospace,Consolas,monospace;font-size:.9rem}.table-wrap{overflow-x:auto;padding:0}table{width:100%;border-collapse:collapse;font-size:.9rem}th,td{text-align:left;padding:.55rem .7rem;border-bottom:1px solid var(--border);white-space:nowrap}th{font-size:.8rem;text-transform:uppercase;letter-spacing:.03em;color:var(--muted)}.num{text-align:right}.num-input{width:6.5rem;padding:.35rem .5rem}.actions{display:flex;gap:.2rem}.disabled-row td{color:var(--muted)}.form-grid{margin-top:.8rem;display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:.7rem;align-items:end}.form-grid h3,.form-grid .error,.form-grid p{grid-column:1 / -1}.inline-form{margin-top:.7rem;display:flex;flex-wrap:wrap;gap:.4rem;align-items:center}.inline-form input:first-child{width:14rem}@media(min-width:700px){.page{padding-top:2rem}}