:root{--primary:#7435d0;--primary-dark:#50209d;--primary-soft:#efe5ff;--ink:#23163b;--muted:#77688e;--line:#e8dff2;--background:#f8f6fc;--card:#fff;--good:#1b805b;--bad:#b13d57;--shadow:0 11px 31px rgba(75,37,117,.056);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--background)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-height:100dvh}button,input,select,textarea{font:inherit}button{cursor:pointer}button:disabled{opacity:.58;cursor:not-allowed}a{color:var(--primary)}[hidden]{display:none!important}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(30px,3.6vw,43px);line-height:1.16;letter-spacing:-.035em}h2{font-size:22px;letter-spacing:-.025em}h3{font-size:17px}p{line-height:1.63}.muted,.subtle{color:var(--muted)}.eyebrow{font-size:11px;font-weight:850;text-transform:uppercase;color:var(--primary);letter-spacing:.14em}.layout{display:grid;grid-template-columns:250px minmax(0,1fr);min-height:100dvh}.sidebar{position:sticky;top:0;height:100dvh;background:#fff;border-right:1px solid var(--line);display:flex;flex-direction:column;padding:26px 16px}.brand{display:flex;gap:11px;align-items:center;padding:8px 8px 30px;text-decoration:none;color:var(--ink)}.brand-icon{display:grid;place-items:center;flex-shrink:0;width:39px;height:39px;border-radius:14px;background:var(--primary);color:#fff;font-size:22px;font-weight:700;box-shadow:0 7px 16px #7435d02c}.brand strong{display:block;font-size:16px}.brand small{display:block;color:var(--primary);font-size:9px;letter-spacing:.17em;font-weight:800;margin-top:4px}.menu-label{font-size:10px;font-weight:800;letter-spacing:.16em;color:#a191b5;margin:4px 12px 12px}.sidebar nav{display:flex;flex-direction:column;gap:4px}.navlink{width:100%;border:none;background:transparent;color:#695b7d;border-radius:11px;display:flex;align-items:center;gap:13px;padding:12px 14px;text-decoration:none;font-weight:650;font-size:13px;text-align:left}.navlink:hover,.navlink.active{background:var(--primary-soft);color:var(--primary-dark)}.nav-symbol{font-size:19px;min-width:22px;text-align:center}.sidebar-foot{margin-top:auto}.mini-aura{background:#f6efff;border:1px solid #ebdcff;padding:14px;display:flex;align-items:center;gap:10px;border-radius:17px}.mini-aura strong{display:block;font-size:12px}.mini-aura small{display:block;font-size:10px;color:var(--muted);margin-top:4px}.mode-info{font-size:11px;color:var(--muted);line-height:1.45;margin:16px 4px 0}.orb{border-radius:50%;background:radial-gradient(circle at 31% 25%,#fff 0%,#d8b4fe 20%,#8b5cf6 48%,#4c1d95 95%);box-shadow:0 0 0 4px #efe1ff,0 0 26px #8b5cf673;color:#fff;display:grid;place-items:center}.small-orb{width:40px;height:40px;flex-shrink:0}.content-wrap{min-width:0}.topbar{height:78px;background:#ffffffea;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding:0 39px;position:sticky;top:0;z-index:15;backdrop-filter:blur(16px)}.crumb{font-size:13px;font-weight:700}.top-actions{display:flex;gap:12px;align-items:center;color:var(--muted);font-size:12px}.status-dot{height:8px;width:8px;background:#6eaf92;border-radius:50%}.icon-btn{border:1px solid var(--line);background:white;border-radius:12px;width:37px;height:37px;color:var(--primary);font-size:18px}.mobile-brand,.bottom-nav{display:none}main{width:min(1120px,100%);margin:0 auto;padding:38px 36px 75px}.page-heading{margin-bottom:27px}.page-heading p{max-width:740px;margin-bottom:0;color:var(--muted)}.hero-grid{display:grid;grid-template-columns:1.42fr .85fr;gap:20px}.hero{background:linear-gradient(116deg,#6d2db6,#8e57e2 64%,#b68bef);color:white;border-radius:26px;padding:35px 37px;min-height:278px;position:relative;overflow:hidden}.hero:after{content:'';position:absolute;right:-65px;top:-95px;width:340px;height:340px;border:2px solid #ffffff28;border-radius:50%;box-shadow:0 0 0 52px #ffffff0b,0 0 0 100px #ffffff0a}.hero .eyebrow{color:#dfcbff}.hero h1{margin-top:17px;max-width:560px}.hero p{color:#e9dcfc;max-width:475px}.hero .action-row{position:relative;z-index:2}.hero .btn-light{background:white;color:var(--primary-dark)}.panel,.card{background:var(--card);border:1px solid var(--line);border-radius:21px;box-shadow:var(--shadow);padding:23px}.panel h3{margin-bottom:7px}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}.gap{margin-top:27px}.study-tile{text-align:left;min-height:165px;border:1px solid var(--line);background:#fff;border-radius:19px;padding:22px;transition:transform .12s,box-shadow .12s}.study-tile:hover{transform:translateY(-2px);box-shadow:var(--shadow)}.tile-icon{width:46px;height:46px;display:grid;place-items:center;border-radius:14px;font-size:22px;background:var(--primary-soft);color:var(--primary)}.study-tile h3{margin:16px 0 6px}.study-tile p{margin:0;color:var(--muted);font-size:12px}.row,.action-row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.row.between{justify-content:space-between}.btn{border:0;background:var(--primary);color:white;padding:12px 19px;border-radius:12px;font-weight:750;font-size:13px;min-height:43px;display:inline-flex;align-items:center;justify-content:center;gap:7px;text-decoration:none}.btn:hover{filter:brightness(.96)}.btn.outline{border:1px solid #d7c5ed;background:white;color:var(--primary)}.btn.subtle{background:#f4ecff;color:var(--primary-dark)}.btn.danger{background:#ffe9ec;color:var(--bad)}.btn.small{padding:8px 12px;min-height:33px}.chip{font-size:11px;padding:7px 11px;border-radius:999px;background:var(--primary-soft);color:var(--primary-dark);font-weight:750;display:inline-block}.line{height:1px;background:var(--line);margin:20px 0}.statbox{padding:18px;background:#faf7ff;border-radius:16px}.statbox strong{display:block;font-size:27px;letter-spacing:-.04em;color:var(--primary-dark)}.statbox small{font-size:11px;color:var(--muted)}.form-control,.textarea,select{border:1px solid #dfd4ed;border-radius:12px;background:#fff;color:var(--ink);padding:12px 13px;min-height:43px;max-width:100%;outline-color:var(--primary)}.form-control:focus,.textarea:focus{border-color:var(--primary)}.textarea{width:100%;resize:vertical;min-height:90px}.field{display:flex;flex-direction:column;gap:7px}.field label{font-size:12px;font-weight:750}.notice{border:1px solid #e7d6ff;border-radius:14px;background:#f8f2ff;color:#574175;padding:14px 17px;font-size:12px;line-height:1.5}.notice.warn{background:#fff9ee;border-color:#f4dda5;color:#785b21}.notice.ok{background:#effbf5;border-color:#bfe7d1;color:#155a40}.notice.bad{background:#fff0f2;border-color:#f3c6d0;color:#962b49}.flash-layout{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(285px,.86fr);gap:18px;align-items:start}.visual-surface{background:radial-gradient(circle at center,#fff 14%,#fbf6ff 100%);border:1px dashed #ddc6f5;border-radius:18px;min-height:385px;display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative}.body-svg{width:min(90%,390px);height:auto;max-height:490px}.flash-controls{display:grid;gap:11px}.answer-row{display:grid;grid-template-columns:38px minmax(0,1fr) 28px;gap:9px;align-items:center;padding:7px 0;border-bottom:1px solid #f4eff8}.number{width:28px;height:28px;display:grid;place-items:center;border-radius:9px;background:#efe2ff;color:#6333b0;font-weight:850;font-size:12px}.answer-row .form-control{width:100%;min-width:0;padding:8px 10px;min-height:38px}.answer-row small{font-size:16px}.ans-result{font-size:12px;line-height:1.6}.ans-result div{padding:8px 0;border-bottom:1px solid var(--line)}.mic-img{width:100%;height:100%;max-height:410px;object-fit:cover;display:block}.mic-container{min-height:325px;height:385px;background:#f9ecfa;cursor:zoom-in}.mic-container svg{width:100%;height:100%}.mic-container.is-zoomed{height:auto;max-height:unset}.mic-container.is-zoomed img{max-height:unset;height:auto;object-fit:contain}.tiny-credit{font-size:10px;color:#867995;margin-top:8px;line-height:1.5}.progress-line{height:10px;background:#f1e9f8;border-radius:999px;overflow:hidden}.progress-line>span{display:block;background:var(--primary);height:100%;border-radius:999px;transition:width .25s}.rating{display:flex;gap:8px;flex-wrap:wrap}.filter-row{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:19px}.filter-btn{border:1px solid var(--line);background:#fff;color:var(--muted);padding:9px 13px;border-radius:999px;font-size:12px}.filter-btn.active{color:white;background:var(--primary);border-color:var(--primary)}.hist-card{border:1px solid var(--line);border-radius:17px;background:white;overflow:hidden}.hist-card .thumb{height:178px;background:#f9e6f6}.hist-card img{width:100%;height:100%;object-fit:cover}.hist-card .meta{padding:16px}.hist-card h3{margin:6px 0}.hist-card p{font-size:12px;color:var(--muted);margin-bottom:10px}.question-options{display:grid;grid-template-columns:1fr 1fr;gap:10px}.option{padding:15px;border:1px solid #e6ddee;border-radius:13px;text-align:left;background:white;color:var(--ink);font-weight:550;line-height:1.4}.option:hover:not(:disabled){border-color:var(--primary)}.option.selected{border:2px solid var(--primary);background:#f6f0ff}.option.good{background:#e5f8ee;border-color:#77cda1;color:#155d3c}.option.bad{background:#ffedf1;border-color:#ed98ab;color:#963950}.explain{background:#faf7fe;border:1px solid #eadbf7;padding:19px;border-radius:15px}.explain ul{margin-bottom:0;padding-left:20px}.explain li{margin-bottom:8px;font-size:13px;line-height:1.5}.explain li.correct{color:var(--good);font-weight:750}.dropzone{border:2px dashed #ccafef;border-radius:17px;background:#fbf8ff;padding:40px 24px;text-align:center}.dropzone.drag{background:#eee2ff;border-color:var(--primary)}.dropzone input{display:none}.note-preview{background:#fff;border:1px solid var(--line);border-radius:17px;padding:30px}.note-preview h2{color:var(--primary)}.note-preview section{border-bottom:1px solid var(--line);margin-bottom:18px}.note-preview blockquote{background:#f9f3ff;border-left:4px solid var(--primary);margin:12px 0;padding:13px}.notes-list{padding-left:20px}.notes-list li{margin-bottom:8px;font-size:13px;line-height:1.55}.timer-shell{text-align:center;max-width:500px;margin:0 auto}.timer-ring{height:250px;width:250px;border-radius:50%;margin:18px auto 29px;display:grid;place-items:center;background:conic-gradient(var(--primary) var(--angle,0%),#eee4f8 0);position:relative}.timer-ring:before{content:'';position:absolute;inset:13px;background:#fff;border-radius:50%}.timer-inner{position:relative;z-index:1}.timer-inner strong{font-size:49px;letter-spacing:-.045em;display:block}.timer-inner small{color:var(--muted)}.chat{display:flex;flex-direction:column;min-height:min(67dvh,710px);height:70dvh;padding:0;overflow:hidden}.chat-head{padding:19px 22px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:13px}.chat-messages{flex:1;padding:23px;overflow:auto;background:linear-gradient(#fff,#fbf8ff)}.chat-message{max-width:85%;margin:13px 0;padding:15px 18px;border-radius:18px;white-space:pre-wrap;font-size:13px;line-height:1.7}.chat-message.user{background:var(--primary);color:#fff;margin-left:auto;border-bottom-right-radius:5px}.chat-message.aura{background:white;border:1px solid var(--line);margin-right:auto;border-bottom-left-radius:5px}.chat-compose{padding:16px;border-top:1px solid var(--line);display:flex;gap:10px}.chat-compose input{flex:1;min-width:0}.empty{text-align:center;padding:35px 18px;color:var(--muted)}.flowchart{display:flex;align-items:center;flex-wrap:wrap;gap:10px;justify-content:center;padding:28px 10px}.flow-node{padding:20px;border:1px solid #d6c4ec;border-radius:17px;background:#f6edff;text-align:center;max-width:180px;min-width:130px;flex:1;font-weight:700}.flow-arrow{color:#9e73d3;font-weight:900}.source-link{font-size:11px;overflow-wrap:anywhere}.toast{position:fixed;bottom:26px;right:24px;max-width:min(480px,calc(100% - 30px));background:#302043;color:white;border-radius:12px;padding:12px 17px;font-size:12px;line-height:1.6;z-index:100;box-shadow:0 13px 38px #0004;display:none}.toast.show{display:block}.modal{position:fixed;inset:0;background:#170d2b9a;z-index:110;display:grid;place-items:center;padding:18px}.modal-dialog{background:white;border-radius:22px;padding:27px;max-width:460px;width:100%}.maxwidth{max-width:860px}.spaced{margin-bottom:12px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.source-list a{font-size:12px}.source-list li{padding:6px 0}.badge-success{color:var(--good);font-weight:750}.mono{font-variant-numeric:tabular-nums}pre{white-space:pre-wrap;word-break:break-word}.calculated-metrics{display:flex;align-items:center;justify-content:space-between;gap:10px}.stat-wide{width:100%}.badge-red{color:var(--bad);font-weight:750}
@media(max-width:1020px){.layout{grid-template-columns:205px minmax(0,1fr)}.topbar{padding:0 23px}main{padding:28px 22px 100px}.hero-grid{grid-template-columns:1fr}.grid.four{grid-template-columns:repeat(2,1fr)}.flash-layout{grid-template-columns:1fr}.visual-surface{min-height:320px}}@media(max-width:700px){.layout{display:block}.sidebar{display:none}.mobile-brand{display:flex;align-items:center;gap:9px;font-size:14px}.mobile-brand .brand-icon{width:31px;height:31px;border-radius:9px;font-size:16px}.crumb{display:none}.topbar{height:66px;padding:0 15px}.top-actions{gap:7px}.top-actions>span:not(.status-dot){font-size:11px}main{padding:22px 14px 110px}.hero{min-height:240px;padding:27px 23px}.hero h1{font-size:32px}.grid,.grid.two{grid-template-columns:1fr 1fr;gap:10px}.grid.four{grid-template-columns:repeat(2,1fr)}.study-tile{min-height:140px;padding:15px}.study-tile h3{font-size:14px}.study-tile p{font-size:11px}.panel,.card{padding:17px;border-radius:17px}.bottom-nav{display:grid;grid-template-columns:repeat(5,1fr);position:fixed;bottom:0;left:0;right:0;background:#ffffffee;border-top:1px solid var(--line);padding:8px 6px calc(8px + env(safe-area-inset-bottom));z-index:50;backdrop-filter:blur(15px)}.bottom-nav .navlink{display:flex;flex-direction:column;padding:7px 2px;gap:5px;border-radius:10px;font-size:10px;justify-content:center;text-align:center}.bottom-nav .nav-symbol{font-size:20px}.question-options{grid-template-columns:1fr}.chat{height:69dvh;min-height:440px}.chat-messages{padding:12px}.chat-message{max-width:94%}.chat-compose{padding:10px}.flash-layout{gap:13px}.mic-container{height:280px;min-height:250px}.timer-ring{height:224px;width:224px}.timer-inner strong{font-size:43px}.hero-grid .grid{grid-template-columns:1fr 1fr}}
@media(max-width:370px){.grid,.grid.two{grid-template-columns:1fr}.top-actions{display:none}}
@media print{.sidebar,.topbar,.bottom-nav,.btn,.no-print,.action-row,.filter-row{display:none!important}.layout{display:block}main{padding:0;max-width:none}.note-preview{border:none;box-shadow:none}.note-preview h2{color:#6332a8}a{color:inherit}}

/* Complementos de la segunda revisión */
.quiz-micro{margin:6px 0 22px;padding:12px;background:#faf7ff;border:1px solid #e7dcf7;border-radius:18px;text-align:center}.quiz-micro .mic-img{display:block;width:100%;max-height:290px;object-fit:contain;border-radius:12px}.quiz-micro figcaption{padding:9px 0 3px}.pdf-excerpt{white-space:pre-wrap;overflow-wrap:anywhere;max-height:270px;overflow:auto;background:white;border:1px solid #e7dcf7;padding:15px;border-radius:12px;font-size:13px;line-height:1.65;max-width:100%}

.ai-notes{white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.8;color:#2b1947;border-left:4px solid #8b5cf6;background:#faf7ff;padding:18px;border-radius:10px;font-size:15px}