:root{
  --navy:#072E4A; --navy-600:#0E3A5C; --azul:#2F648A; --azul-soft:#5E86A6;
  --sand:#DBA274; --sand-2:#CF9B72; --sand-tint:#F6E8DA;
  --ink:#16232E; --muted:#5A6B7A; --line:#E2E9F0; --line-2:#EDF1F6;
  --bg:#F5F7F9; --surface:#FFFFFF; --surface-2:#FBFCFD;
  --sidebar:#072E4A; --sidebar-line:#173F5C; --sidebar-muted:#9DB4C7;
  --grad:linear-gradient(90deg,#072E4A 0%,#2F648A 45%,#CF9B72 100%);
  --grad-45:linear-gradient(45deg,#072E4A 0%,#1D4763 45%,#DBA274 100%);
  --ok:#2F7D5B; --ok-tint:#E4F0EA;
  --shadow:0 1px 2px rgba(7,46,74,.05),0 8px 24px rgba(7,46,74,.06);
  --radius:14px;
}
:root:not([data-theme="light"]){}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#0A1620; --surface:#0F212F; --surface-2:#0C1C28;
    --ink:#E7EEF4; --muted:#9DB2C2; --line:#1C3346; --line-2:#16293A;
    --sand-tint:#2A2117; --ok-tint:#16261E;
  }
}
:root[data-theme="dark"]{
  --bg:#0A1620; --surface:#0F212F; --surface-2:#0C1C28;
  --ink:#E7EEF4; --muted:#9DB2C2; --line:#1C3346; --line-2:#16293A;
  --sand-tint:#2A2117; --ok-tint:#16261E;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:"DM Sans",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  font-size:15px;line-height:1.55;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:"Titillium Web",system-ui,sans-serif;margin:0;color:var(--ink);
  text-wrap:balance;letter-spacing:-.01em}
button{font-family:inherit;cursor:pointer}
a{color:inherit}
.eyebrow{font-family:"Titillium Web",sans-serif;text-transform:uppercase;
  letter-spacing:.14em;font-size:11px;font-weight:700;color:var(--azul)}
.muted{color:var(--muted)}
:focus-visible{outline:2px solid var(--sand);outline-offset:2px;border-radius:6px}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* ---------- Logo ---------- */
.iso{display:block}
.brand{display:flex;align-items:center;gap:11px}
.brand .word{font-family:"Titillium Web",sans-serif;font-weight:700;letter-spacing:.22em;
  font-size:19px;color:#fff}

/* ---------- LOGIN ---------- */
#login{min-height:100vh;display:grid;grid-template-columns:1.05fr .95fr}
.login-hero{background:var(--grad-45);color:#fff;padding:48px 54px;display:flex;
  flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}
.login-hero::after{content:"";position:absolute;right:-120px;bottom:-120px;width:360px;height:360px;
  border-radius:50%;background:radial-gradient(circle,rgba(219,162,116,.35),transparent 70%)}
.login-hero .top{display:flex;align-items:center;gap:12px;z-index:1}
.login-hero h1{color:#fff;font-size:clamp(30px,4vw,46px);line-height:1.05;font-weight:700;max-width:15ch}
.login-hero .lead{color:#DCE7F0;max-width:34ch;margin-top:16px;font-size:16px}
.login-hero .foot{color:#B9CADA;font-size:13px;z-index:1;display:flex;gap:8px;align-items:center}
.hchip{display:inline-flex;gap:8px;flex-wrap:wrap;margin-top:26px;z-index:1}
.hchip span{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);
  padding:6px 12px;border-radius:999px;font-size:12.5px;color:#EAF1F7}
.login-form{background:var(--surface);display:flex;flex-direction:column;justify-content:center;
  padding:48px 8vw}
.login-form h2{font-size:24px;margin-bottom:4px}
.role-list{display:flex;flex-direction:column;gap:12px;margin:22px 0 8px}
.role{display:flex;align-items:center;gap:14px;text-align:left;width:100%;background:var(--surface-2);
  border:1.5px solid var(--line);border-radius:12px;padding:14px 16px;transition:.15s}
.role:hover{border-color:var(--azul);transform:translateY(-1px)}
.role .rico{width:42px;height:42px;border-radius:10px;display:grid;place-items:center;flex:0 0 auto;
  background:var(--navy);color:#fff}
.role.creator .rico{background:var(--azul)}
.role.admin .rico{background:linear-gradient(135deg,var(--navy),var(--sand))}
.role b{font-family:"Titillium Web",sans-serif;font-size:15.5px;display:block}
.role small{color:var(--muted)}
.login-note{color:var(--muted);font-size:12.5px;margin-top:12px}

/* ---------- APP SHELL ---------- */
#app{display:none;min-height:100vh;grid-template-columns:244px 1fr}
#app.on{display:grid}
.side{background:var(--sidebar);color:#fff;padding:20px 16px;display:flex;flex-direction:column;
  gap:6px;position:sticky;top:0;height:100vh}
.side .brand{padding:6px 8px 18px;border-bottom:1px solid var(--sidebar-line);margin-bottom:10px}
.nav-label{font-family:"Titillium Web",sans-serif;text-transform:uppercase;letter-spacing:.13em;
  font-size:10.5px;color:var(--sidebar-muted);padding:14px 10px 6px;font-weight:600}
.nav a{display:flex;align-items:center;gap:11px;padding:10px 11px;border-radius:9px;color:#C9D9E6;
  font-weight:500;font-size:14px;border-left:3px solid transparent;transition:.13s;cursor:pointer}
.nav a:hover{background:rgba(255,255,255,.06);color:#fff}
.nav a.active{background:rgba(47,100,138,.28);color:#fff;border-left-color:var(--sand)}
.nav a svg{flex:0 0 auto}
.side .spacer{flex:1}
.side .helpcard{background:rgba(255,255,255,.06);border:1px solid var(--sidebar-line);border-radius:12px;
  padding:13px;font-size:12.5px;color:#C9D9E6}
.side .helpcard b{color:#fff;font-family:"Titillium Web",sans-serif}

.main{min-width:0;display:flex;flex-direction:column}
.topbar{background:var(--surface);border-bottom:1px solid var(--line);padding:14px 26px;
  display:flex;align-items:center;gap:18px;position:sticky;top:0;z-index:20}
.topbar .tt{flex:1;min-width:0}
.topbar .eyebrow{margin-bottom:1px}
.topbar h2{font-size:19px}
.search{display:flex;align-items:center;gap:9px;background:var(--surface-2);border:1.5px solid var(--line);
  border-radius:10px;padding:8px 12px;min-width:210px;color:var(--muted)}
.search input{border:0;background:transparent;outline:none;font-family:inherit;font-size:14px;
  color:var(--ink);width:100%}
.rolepick{display:flex;align-items:center;gap:9px;background:var(--surface-2);border:1.5px solid var(--line);
  border-radius:999px;padding:5px 6px 5px 12px}
.rolepick select{border:0;background:transparent;font-family:"Titillium Web",sans-serif;font-weight:600;
  font-size:13px;color:var(--navy);outline:none;cursor:pointer}
.avatar{width:34px;height:34px;border-radius:50%;background:var(--grad);color:#fff;display:grid;
  place-items:center;font-family:"Titillium Web",sans-serif;font-weight:700;font-size:14px;flex:0 0 auto}
.content{padding:26px;max-width:1120px;width:100%;margin:0 auto}
.iconbtn{width:38px;height:38px;border-radius:10px;border:1.5px solid var(--line);background:var(--surface-2);
  display:grid;place-items:center;color:var(--muted)}

/* utilities */
.row{display:flex;gap:16px}
.between{display:flex;align-items:center;justify-content:space-between;gap:14px}
.btn{border:0;border-radius:10px;padding:10px 16px;font-weight:600;font-family:"Titillium Web",sans-serif;
  font-size:14px;display:inline-flex;align-items:center;gap:8px;transition:.14s}
.btn.primary{background:var(--navy);color:#fff}
.btn.primary:hover{background:var(--navy-600)}
.btn.sand{background:var(--sand);color:var(--navy)}
.btn.sand:hover{background:var(--sand-2)}
.btn.ghost{background:transparent;border:1.5px solid var(--line);color:var(--ink)}
.btn.ghost:hover{border-color:var(--azul)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.pill{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;
  font-family:"Titillium Web",sans-serif;padding:4px 10px;border-radius:999px;white-space:nowrap}
.pill.done{background:var(--navy);color:#fff}
.pill.prog{background:var(--sand-tint);color:#8a5a2b}
.pill.todo{background:var(--line-2);color:var(--muted)}
.pill.ok{background:var(--ok-tint);color:var(--ok)}
.bar{height:8px;border-radius:99px;background:var(--line-2);overflow:hidden}
.bar>i{display:block;height:100%;background:var(--grad);border-radius:99px}
.grid{display:grid;gap:16px}
.section-h{display:flex;align-items:center;justify-content:space-between;margin:26px 0 12px}
.section-h h3{font-size:17px}
.crumb{color:var(--muted);font-size:13px;margin-bottom:6px;display:flex;align-items:center;gap:7px}
.crumb b{color:var(--azul);cursor:pointer;font-weight:600}

/* dashboard */
.hero-strip{background:var(--grad-45);border-radius:var(--radius);padding:22px 24px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:20px;overflow:hidden;position:relative}
.hero-strip h3{color:#fff;font-size:21px;max-width:26ch}
.hero-strip p{color:#DCE7F0;margin:6px 0 0;font-size:14px;max-width:46ch}
.ring{--v:0;width:96px;height:96px;border-radius:50%;flex:0 0 auto;display:grid;place-items:center;
  background:conic-gradient(var(--sand) calc(var(--v)*1%), rgba(255,255,255,.22) 0);position:relative}
.ring::before{content:"";position:absolute;inset:8px;border-radius:50%;background:#0c344f}
.ring b{position:relative;font-family:"Titillium Web",sans-serif;font-size:22px;color:#fff}
.ring.light::before{background:var(--surface)}
.ring.light b{color:var(--navy)}
:root[data-theme="dark"] .ring.light b,:root:not([data-theme="light"]) .ring.light b{color:var(--sand)}
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:16px}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px 16px}
.stat .n{font-family:"Titillium Web",sans-serif;font-weight:700;font-size:26px;line-height:1;
  color:var(--navy);font-variant-numeric:tabular-nums}
.stat .l{font-size:12.5px;color:var(--muted);margin-top:6px}
:root[data-theme="dark"] .stat .n,:root:not([data-theme="light"]) .stat .n{color:var(--sand)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .stat .n{color:var(--sand)}}

/* course cards */
.courses{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}
.course{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;transition:.15s}
.course:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.course .thumb{height:104px;background:var(--grad-45);position:relative;display:flex;align-items:flex-end;
  padding:12px 14px}
.course .thumb .tag{background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.22);color:#fff;
  font-size:11px;font-weight:600;font-family:"Titillium Web",sans-serif;padding:3px 9px;border-radius:999px}
.course .body{padding:15px 16px 17px;display:flex;flex-direction:column;gap:9px;flex:1}
.course h4{font-size:16px}
.course .meta{font-size:12.5px;color:var(--muted)}
.course .foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px}

/* lesson list */
.lessons{display:flex;flex-direction:column;gap:8px}
.lesson{display:flex;align-items:center;gap:14px;background:var(--surface);border:1px solid var(--line);
  border-radius:11px;padding:13px 15px;transition:.13s;cursor:pointer}
.lesson:hover{border-color:var(--azul)}
.lnum{width:34px;height:34px;border-radius:9px;flex:0 0 auto;display:grid;place-items:center;
  font-family:"Titillium Web",sans-serif;font-weight:700;background:var(--surface-2);border:1px solid var(--line);
  color:var(--azul)}
.lesson.done .lnum{background:var(--navy);color:#fff;border-color:var(--navy)}
.lesson .lt{flex:1;min-width:0}
.lesson .lt b{font-family:"Titillium Web",sans-serif;font-size:14.5px;display:block}
.lesson .lt small{color:var(--muted)}

/* lesson view */
.player{aspect-ratio:16/9;border-radius:var(--radius);background:var(--grad-45);position:relative;
  display:grid;place-items:center;overflow:hidden;color:#fff}
.player .play{width:70px;height:70px;border-radius:50%;background:rgba(255,255,255,.16);
  border:1.5px solid rgba(255,255,255,.5);display:grid;place-items:center;backdrop-filter:blur(2px)}
.player .cap{position:absolute;left:18px;bottom:16px;font-size:13px;color:#EAF1F7}
.player .dur{position:absolute;right:16px;top:14px;background:rgba(7,46,74,.5);padding:3px 9px;
  border-radius:6px;font-size:12px}
.steps{counter-reset:s;display:flex;flex-direction:column;gap:12px;margin-top:6px}
.step{display:flex;gap:13px}
.step::before{counter-increment:s;content:counter(s);flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  background:var(--sand-tint);color:#8a5a2b;font-family:"Titillium Web",sans-serif;font-weight:700;
  display:grid;place-items:center;font-size:13px}
.lay2{display:grid;grid-template-columns:1fr 300px;gap:20px;align-items:start}

/* reports table */
.tablewrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}
table{border-collapse:collapse;width:100%;font-size:14px;min-width:640px}
th,td{text-align:left;padding:12px 15px;border-bottom:1px solid var(--line-2)}
th{font-family:"Titillium Web",sans-serif;font-size:11.5px;text-transform:uppercase;letter-spacing:.08em;
  color:var(--muted);background:var(--surface-2);position:sticky;top:0}
td.pct{font-variant-numeric:tabular-nums;font-weight:600}
tr:last-child td{border-bottom:0}
.mini{display:flex;align-items:center;gap:9px}
.mini .bar{width:90px}
.avatar.sm{width:28px;height:28px;font-size:12px}

/* forms */
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}
.field label{font-family:"Titillium Web",sans-serif;font-weight:600;font-size:13px}
.field input,.field textarea,.field select{border:1.5px solid var(--line);border-radius:10px;padding:10px 12px;
  font-family:inherit;font-size:14px;background:var(--surface-2);color:var(--ink);outline:none}
.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--azul)}
.uploader{border:1.6px dashed var(--line);border-radius:11px;padding:20px;text-align:center;color:var(--muted);
  background:var(--surface-2)}

/* search results */
.results{display:flex;flex-direction:column;gap:10px}
.hit{display:flex;gap:13px;align-items:center;background:var(--surface);border:1px solid var(--line);
  border-radius:11px;padding:13px 15px;cursor:pointer}
.hit:hover{border-color:var(--azul)}
.hit .k{width:40px;height:40px;border-radius:9px;background:var(--sand-tint);color:#8a5a2b;display:grid;
  place-items:center;flex:0 0 auto}
mark{background:var(--sand-tint);color:#8a5a2b;padding:0 2px;border-radius:3px}

/* chatbot */
.fab{position:fixed;right:24px;bottom:24px;width:58px;height:58px;border-radius:50%;background:var(--navy);
  color:#fff;border:0;display:grid;place-items:center;box-shadow:0 10px 30px rgba(7,46,74,.3);z-index:60}
.fab:hover{background:var(--navy-600)}
.chat{position:fixed;right:24px;bottom:92px;width:360px;max-width:calc(100vw - 32px);height:520px;
  max-height:calc(100vh - 130px);background:var(--surface);border:1px solid var(--line);border-radius:16px;
  box-shadow:0 24px 60px rgba(7,46,74,.28);display:none;flex-direction:column;overflow:hidden;z-index:60}
.chat.on{display:flex}
.chat .ch{background:var(--grad-45);color:#fff;padding:14px 16px;display:flex;align-items:center;gap:11px}
.chat .ch b{font-family:"Titillium Web",sans-serif;font-size:15px}
.chat .ch small{color:#CFE0EC;display:block;font-size:11.5px}
.chat .log{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:12px;background:var(--bg)}
.msg{max-width:84%;padding:10px 13px;border-radius:13px;font-size:13.5px;line-height:1.5}
.msg.bot{background:var(--surface);border:1px solid var(--line);align-self:flex-start;border-bottom-left-radius:4px}
.msg.me{background:var(--navy);color:#fff;align-self:flex-end;border-bottom-right-radius:4px}
.msg .src{display:block;margin-top:7px;font-size:11.5px;color:var(--azul);font-weight:600;cursor:pointer}
.msg.me .src{color:#B9CADA}
.chips{display:flex;flex-wrap:wrap;gap:7px;padding:0 16px 10px;background:var(--bg)}
.chips button{background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:6px 11px;
  font-size:12px;color:var(--azul);font-weight:600;font-family:"Titillium Web",sans-serif}
.chat .inp{display:flex;gap:8px;padding:11px;border-top:1px solid var(--line);background:var(--surface)}
.chat .inp input{flex:1;border:1.5px solid var(--line);border-radius:10px;padding:9px 12px;font-family:inherit;
  font-size:13.5px;background:var(--surface-2);color:var(--ink);outline:none}
.chat .inp button{background:var(--navy);color:#fff;border:0;border-radius:10px;width:40px;display:grid;
  place-items:center}

.hide{display:none!important}
@media(max-width:880px){
  #app.on{grid-template-columns:1fr}
  .side{display:none}
  .lay2{grid-template-columns:1fr}
  .stat-row{grid-template-columns:repeat(2,1fr)}
  #login{grid-template-columns:1fr}
  .login-hero{min-height:230px}
}

/* ---- login form (auth real) ---- */
.authform{display:flex;flex-direction:column;gap:12px;margin:22px 0 6px;max-width:360px}
.authform .field{margin:0}
.autherr{color:#b23b3b;font-size:13px;min-height:16px}
.demo{background:var(--surface-2);border:1px solid var(--line);border-radius:10px;padding:11px 13px;font-size:12.5px;color:var(--muted);margin-top:10px}
.demo b{color:var(--ink);font-family:'Titillium Web'}
/* ---- modal ---- */
.modal-bg{position:fixed;inset:0;background:rgba(7,46,74,.42);display:none;align-items:flex-start;justify-content:center;z-index:80;padding:40px 16px;overflow:auto}
.modal-bg.on{display:flex}
.modal{background:var(--surface);border-radius:16px;width:100%;max-width:520px;box-shadow:0 30px 70px rgba(7,46,74,.3);overflow:hidden}
.modal .mh{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line)}
.modal .mh h3{font-size:17px}
.modal .mb{padding:18px 20px;max-height:64vh;overflow:auto}
.modal .mf{display:flex;justify-content:flex-end;gap:10px;padding:14px 20px;border-top:1px solid var(--line)}
.modal .x{background:transparent;border:0;font-size:20px;color:var(--muted);cursor:pointer}
.steprow{display:flex;gap:8px;margin-bottom:8px}
.steprow input{flex:1}
.steprow button{border:1px solid var(--line);background:var(--surface-2);border-radius:8px;width:36px;color:var(--muted);cursor:pointer}
.rowbtns{display:flex;gap:8px;flex-wrap:wrap}
.tag-inline{font-size:11px;font-weight:600;font-family:'Titillium Web';padding:3px 9px;border-radius:999px;background:var(--sand-tint);color:#8a5a2b}
.linkbtn{background:transparent;border:0;color:var(--azul);font-weight:600;font-family:'Titillium Web';font-size:13px;cursor:pointer;padding:4px 6px}
.linkbtn.danger{color:#b23b3b}
.mgmt-course{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px;margin-bottom:14px}
.mgmt-course .ch{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}


/* material de lección: selector + subida + visor */
.seg{display:flex;flex-wrap:wrap;gap:8px 16px}
.seg label{display:inline-flex;align-items:center;gap:6px;font-weight:500;font-size:14px;cursor:pointer}
.mt-panel{display:none}
.mt-panel.on{display:block}
.upprev{margin-top:8px;font-size:13px;color:var(--muted);display:flex;flex-direction:column;gap:6px}
.upprev img{max-height:120px;width:auto;border-radius:8px;display:block}
.lmedia{display:block}
.lmedia img{width:100%;border-radius:var(--radius);display:block}
.lpdf{display:flex;flex-direction:column}
.lpdf iframe{width:100%;height:520px;border:1px solid var(--line);border-radius:var(--radius);background:#fff}