@font-face{font-family:'Inter';font-style:normal;font-weight:400 800;font-display:swap;src:url(/assets/fonts/inter-latin.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
:root{
  --navy:#041227;--navy2:#0a1c3c;--navy3:#12284f;
  --blue:#0065fa;--blue-d:#0052cc;--blue2:#3d8bff;--sky:#e8f1ff;
  --bg:#f4f6fb;--card:#fff;--line:#e2e7f0;--line2:#cfd7e6;
  --txt:#0b1630;--mut:#4d5a73;--mut2:#56627b;
  --ok:#0b7a55;--ok-bg:#e3f7ef;--warn:#8a4700;--warn-bg:#fff3e0;--err:#c62828;--err-bg:#fdecec;
  --r:16px;--rs:10px;--wrap:1200px;
  --sh:0 1px 2px rgba(11,22,48,.06),0 8px 24px rgba(11,22,48,.06);
  --sh2:0 20px 50px rgba(4,18,39,.18);
  --grad:linear-gradient(100deg,#3d8bff,#0065fa 55%,#5ea2ff);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;background:var(--bg);color:var(--txt);line-height:1.6;font-size:16px;-webkit-font-smoothing:antialiased}
img,video{max-width:100%;display:block}
a{color:var(--blue-d)}
a:hover{color:var(--blue)}
h1,h2,h3,h4{line-height:1.2;margin:0 0 .5em;letter-spacing:-.02em}
h1{font-size:clamp(1.9rem,4.4vw,3.1rem);font-weight:800}
h2{font-size:clamp(1.45rem,3vw,2.1rem);font-weight:800}
h3{font-size:1.15rem;font-weight:700}
p{margin:0 0 1em}
:focus-visible{outline:3px solid var(--blue2);outline-offset:2px;border-radius:6px}
.skip{position:absolute;left:-9999px;top:8px;background:#fff;color:var(--navy);padding:10px 16px;border-radius:8px;z-index:100;font-weight:700}
.skip:focus{left:16px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.hidden{display:none!important}

/* Botones */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 22px;border-radius:999px;font:inherit;font-weight:700;font-size:.97rem;text-decoration:none;border:2px solid transparent;cursor:pointer;transition:background .15s,border-color .15s,transform .15s,box-shadow .15s;white-space:nowrap}
.btn-pri{background:var(--blue);color:#fff;box-shadow:0 6px 18px rgba(0,101,250,.28)}
.btn-pri:hover{background:var(--blue-d);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}
.btn-ghost:hover{border-color:#fff;color:#fff}
.btn-line{background:#fff;color:var(--navy);border-color:var(--line2)}
.btn-line:hover{border-color:var(--blue);color:var(--blue-d)}
.btn-sm{min-height:38px;padding:0 16px;font-size:.88rem}
.btn[disabled],.btn[aria-disabled=true]{opacity:.45;pointer-events:none}

/* Cabecera */
.top{background:var(--navy);color:#fff;position:sticky;top:0;z-index:40;border-bottom:1px solid rgba(255,255,255,.08)}
.top .wrap{display:flex;align-items:center;gap:18px;min-height:66px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:#fff}
.brand img{height:auto}
.brand .iso{width:34px;height:34px}
.brand .wm{width:138px;height:22px}
.brand .tag{font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;background:rgba(61,139,255,.18);color:#9cc2ff;border:1px solid rgba(61,139,255,.35);padding:3px 9px;border-radius:999px}
.nav{margin-left:auto;display:flex;align-items:center;gap:6px}
.nav a.lnk{color:#c9d5ec;text-decoration:none;font-weight:600;font-size:.93rem;padding:8px 12px;border-radius:8px}
.nav a.lnk:hover,.nav a.lnk[aria-current=page]{color:#fff;background:rgba(255,255,255,.08)}
.user{display:flex;align-items:center;gap:10px;margin-left:8px}
.avatar{width:36px;height:36px;border-radius:50%;background:var(--grad);display:grid;place-items:center;font-weight:800;font-size:.85rem;color:#fff}
.user .nm{font-size:.88rem;color:#dfe7f6;font-weight:600;max-width:160px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.logout{background:none;border:0;color:#9fb0cf;font:inherit;font-size:.85rem;cursor:pointer;padding:6px 8px;border-radius:6px}
.logout:hover{color:#fff;background:rgba(255,255,255,.08)}
@media (max-width:760px){.brand .wm{display:none}.user .nm{display:none}.nav a.lnk{padding:8px 8px;font-size:.86rem}}

/* Hero oscuro */
.hero{background:radial-gradient(1200px 500px at 85% -10%,rgba(0,101,250,.35),transparent 60%),radial-gradient(800px 400px at 0% 110%,rgba(61,139,255,.18),transparent 60%),var(--navy);color:#fff;padding:72px 0 80px;overflow:hidden}
.hero .grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.hero p.lead{font-size:1.15rem;color:#c3cfe6;max-width:600px}
.eyebrow{display:inline-block;font-size:.78rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:#8fb8ff;margin-bottom:14px}
.hero .ctas{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.hero .note{font-size:.88rem;color:#93a3c2;margin-top:16px}
.grad-t{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
@media (max-width:900px){.hero .grid{grid-template-columns:1fr}.hero{padding:48px 0 56px}}

/* Maqueta de lección en el hero */
.mock{background:#0c1a36;border:1px solid rgba(255,255,255,.1);border-radius:20px;box-shadow:var(--sh2);padding:16px}
.mock .scr{aspect-ratio:16/9;border-radius:12px;background:linear-gradient(135deg,#0d2a5c,#0065fa);position:relative;display:grid;place-items:center}
.mock .play{width:64px;height:64px;border-radius:50%;background:rgba(255,255,255,.95);display:grid;place-items:center}
.mock .play::after{content:"";border-left:20px solid var(--blue);border-top:12px solid transparent;border-bottom:12px solid transparent;margin-left:6px}
.mock .bar{position:absolute;left:14px;right:14px;bottom:14px;height:6px;background:rgba(255,255,255,.25);border-radius:6px}
.mock .bar i{display:block;height:100%;width:62%;background:#fff;border-radius:6px}
.mock ul{list-style:none;margin:14px 0 0;padding:0;display:grid;gap:8px}
.mock li{display:flex;align-items:center;gap:10px;font-size:.88rem;color:#c9d5ec;background:rgba(255,255,255,.04);border-radius:10px;padding:9px 12px}
.mock li .st{width:20px;height:20px;border-radius:50%;border:2px solid #4a6290;flex:none}
.mock li.done .st{background:var(--ok);border-color:var(--ok)}
.mock li.cur{background:rgba(0,101,250,.22);color:#fff}
.mock li.cur .st{border-color:#8fb8ff}
.mock .pg{display:flex;justify-content:space-between;font-size:.8rem;color:#93a3c2;margin-top:12px}
.mock .pg b{color:#fff}
.mock .meter{height:8px;border-radius:8px;background:rgba(255,255,255,.12);margin-top:6px}
.mock .meter i{display:block;height:100%;width:40%;background:var(--grad);border-radius:8px}

/* Secciones */
.sec{padding:72px 0}
.sec.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-h{max-width:720px;margin-bottom:36px}
.sec-h p{color:var(--mut);font-size:1.06rem}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:s}
.step{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:26px;box-shadow:var(--sh)}
.step::before{counter-increment:s;content:counter(s);display:grid;place-items:center;width:40px;height:40px;border-radius:12px;background:var(--sky);color:var(--blue-d);font-weight:800;margin-bottom:14px}
.step p{color:var(--mut);margin:0}
@media (max-width:860px){.steps{grid-template-columns:1fr}}

/* Tarjetas de curso */
.courses{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
@media (max-width:860px){.courses{grid-template-columns:1fr}}
.ccard{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh);display:flex;flex-direction:column;overflow:hidden;transition:transform .15s,box-shadow .15s}
.ccard:hover{transform:translateY(-2px);box-shadow:0 2px 4px rgba(11,22,48,.06),0 16px 36px rgba(11,22,48,.1)}
.ccard .cov{background:linear-gradient(120deg,var(--navy),var(--navy3));color:#fff;padding:22px 24px;position:relative;min-height:120px}
.ccard .cov .num{font-size:.75rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:#8fb8ff}
.ccard .cov h3{margin:6px 0 0;font-size:1.18rem;color:#fff}
.ccard .cov .lvl{position:absolute;top:18px;right:18px;font-size:.72rem;font-weight:700;background:rgba(255,255,255,.12);padding:4px 10px;border-radius:999px;color:#dfe7f6}
.ccard .body{padding:20px 24px 24px;display:flex;flex-direction:column;gap:14px;flex:1}
.ccard .body p{margin:0;color:var(--mut);font-size:.95rem}
.meta{display:flex;gap:16px;flex-wrap:wrap;font-size:.85rem;color:var(--mut2);font-weight:600}
.meta span{display:inline-flex;align-items:center;gap:6px}
.ticks{list-style:none;margin:0;padding:0;display:grid;gap:6px}
.ticks li{position:relative;padding-left:26px;font-size:.93rem;color:var(--txt)}
.ticks li::before{content:"";position:absolute;left:0;top:4px;width:16px;height:16px;border-radius:50%;background:var(--ok-bg) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.5l2.5 2.5L12 5.5' fill='none' stroke='%230f9d6e' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/12px no-repeat}
.ccard .cfoot{margin-top:auto;display:flex;align-items:center;gap:14px;justify-content:space-between;flex-wrap:wrap}

/* Barras de progreso */
.prog{display:flex;align-items:center;gap:12px;width:100%}
.prog .track{flex:1;height:10px;background:#e6ebf4;border-radius:10px;overflow:hidden}
.prog .fill{height:100%;width:0;background:var(--grad);border-radius:10px;transition:width .6s ease}
.prog .pct{font-weight:800;font-size:.9rem;min-width:42px;text-align:right;color:var(--navy)}
.dark .prog .track{background:rgba(255,255,255,.14)}
.dark .prog .pct{color:#fff}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:.78rem;font-weight:700;padding:4px 10px;border-radius:999px;background:#eef2f8;color:var(--mut)}
.badge.ok{background:var(--ok-bg);color:var(--ok)}
.badge.go{background:var(--sky);color:var(--blue-d)}
.badge.gold{background:#fff4d6;color:#8a5a00}

/* Panel del alumno */
.dash-h{background:var(--navy);color:#fff;padding:40px 0 90px}
.dash-h p{color:#b8c6e0;margin:0}
.dash-top{display:grid;grid-template-columns:1.4fr 1fr;gap:22px;margin-top:-64px}
@media (max-width:900px){.dash-top{grid-template-columns:1fr}}
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh);padding:24px}
.panel h2{font-size:1.2rem}
.resume{display:flex;gap:20px;align-items:center}
.resume .thumb{width:180px;flex:none;aspect-ratio:16/9;border-radius:12px;background:linear-gradient(135deg,#0d2a5c,#0065fa);display:grid;place-items:center}
.resume .thumb::after{content:"";border-left:18px solid #fff;border-top:11px solid transparent;border-bottom:11px solid transparent;margin-left:5px}
.resume .k{font-size:.8rem;font-weight:700;color:var(--mut2);text-transform:uppercase;letter-spacing:.06em}
.resume h2{font-size:1.15rem;margin:4px 0 12px}
@media (max-width:560px){.resume{flex-direction:column;align-items:stretch}.resume .thumb{width:100%}}
.ring{display:flex;align-items:center;gap:20px}
.ring svg{width:116px;height:116px;flex:none;transform:rotate(-90deg)}
.ring circle{fill:none;stroke-width:10}
.ring .bgc{stroke:#e6ebf4}
.ring .fgc{stroke:var(--blue);stroke-linecap:round;transition:stroke-dashoffset .8s ease}
.ring .lbl{font-size:2rem;font-weight:800;color:var(--navy);line-height:1}
.ring .sub{color:var(--mut);font-size:.9rem}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:18px}
.stats div{background:var(--bg);border-radius:12px;padding:12px;text-align:center}
.stats b{display:block;font-size:1.35rem;color:var(--navy)}
.stats span{font-size:.78rem;color:var(--mut);font-weight:600}

/* Página de curso */
.chero{background:radial-gradient(900px 400px at 90% 0,rgba(0,101,250,.3),transparent 60%),var(--navy);color:#fff;padding:36px 0 44px}
.crumbs{font-size:.86rem;color:#9fb0cf;margin-bottom:16px}
.crumbs a{color:#c9d5ec;text-decoration:none}
.crumbs a:hover{color:#fff;text-decoration:underline}
.chero .grid{display:grid;grid-template-columns:1.3fr .7fr;gap:36px;align-items:end}
.chero p{color:#c3cfe6}
.chero .box{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--r);padding:20px}
.chero .box .k{font-size:.85rem;color:#b8c6e0;margin-bottom:8px}
@media (max-width:860px){.chero .grid{grid-template-columns:1fr}}
.layout2{display:grid;grid-template-columns:1fr 340px;gap:26px;padding:36px 0 64px;align-items:start}
@media (max-width:960px){.layout2{grid-template-columns:1fr}}
.lessons{list-style:none;margin:0;padding:0;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:#fff}
.lessons li+li{border-top:1px solid var(--line)}
.lessons a{display:flex;align-items:center;gap:14px;padding:16px 18px;text-decoration:none;color:var(--txt)}
.lessons a:hover{background:#f7f9fd}
.lessons .n{font-size:.78rem;color:var(--mut2);font-weight:700;min-width:62px}
.lessons .t{flex:1;font-weight:600}
.lessons .d{font-size:.85rem;color:var(--mut2);white-space:nowrap}
.st{width:24px;height:24px;border-radius:50%;border:2px solid var(--line2);flex:none;display:grid;place-items:center;position:relative}
.st.part{border-color:var(--blue);background:conic-gradient(var(--blue) var(--p,0%),transparent 0)}
.st.part::after{content:"";position:absolute;inset:3px;border-radius:50%;background:#fff}
.st.done{background:var(--ok);border-color:var(--ok)}
.st.done::after{content:"";width:10px;height:6px;border:solid #fff;border-width:0 0 2px 2px;transform:rotate(-45deg) translate(1px,-1px)}
.side-card{position:sticky;top:86px;display:grid;gap:16px}
.exam-card .lock{font-size:.88rem;color:var(--mut)}

/* Reproductor */
.lbar{background:var(--navy);color:#fff;border-bottom:1px solid rgba(255,255,255,.08)}
.lbar .wrap{display:flex;align-items:center;gap:18px;min-height:58px;flex-wrap:wrap;padding-top:8px;padding-bottom:8px}
.lbar a.back{color:#c9d5ec;text-decoration:none;font-weight:600;font-size:.9rem;display:inline-flex;align-items:center;gap:6px}
.lbar a.back:hover{color:#fff}
.lbar .ct{font-weight:700;font-size:.95rem;flex:1;min-width:200px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.lbar .prog{width:260px}
@media (max-width:760px){.lbar .prog{width:100%}.lbar .ct{min-width:0;flex-basis:60%}}
.player-layout{display:grid;grid-template-columns:330px 1fr;gap:0;min-height:calc(100vh - 124px)}
@media (max-width:980px){.player-layout{grid-template-columns:1fr}}
.psidebar{background:#fff;border-right:1px solid var(--line);padding:18px 0}
.psidebar h2{font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;color:var(--mut2);padding:0 20px;margin-bottom:10px}
.psidebar ol{list-style:none;margin:0;padding:0}
.psidebar a{display:flex;gap:12px;align-items:flex-start;padding:12px 20px;text-decoration:none;color:var(--txt);font-size:.92rem;border-left:3px solid transparent}
.psidebar a:hover{background:#f7f9fd}
.psidebar a[aria-current=page]{background:var(--sky);border-left-color:var(--blue);font-weight:700}
.psidebar .tt{flex:1}
.psidebar .dd{display:block;font-size:.78rem;color:var(--mut2);font-weight:500}
.psidebar .exam{margin:14px 20px 0;padding-top:14px;border-top:1px solid var(--line)}
@media (max-width:980px){.psidebar{order:2;border-right:0;border-top:1px solid var(--line)}}
.pmain{padding:28px clamp(16px,3vw,40px) 56px;max-width:1040px;width:100%}
.vbox{position:relative;aspect-ratio:16/9;background:#000;border-radius:14px;overflow:hidden;box-shadow:var(--sh2)}
.vbox video,.vbox iframe,.vbox .yt{position:absolute;inset:0;width:100%;height:100%;border:0}
.watch{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:16px 0 4px;padding:14px 16px;background:#fff;border:1px solid var(--line);border-radius:12px}
.watch .prog{flex:1;min-width:200px}
.watch .msg{font-size:.88rem;color:var(--mut);font-weight:600}
.watch .msg.ok{color:var(--ok)}
.lesson-h{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;margin-top:22px;flex-wrap:wrap}
.lesson-h .k{font-size:.82rem;color:var(--mut2);font-weight:700;text-transform:uppercase;letter-spacing:.06em}
.lesson-h h1{font-size:clamp(1.4rem,2.6vw,1.9rem);margin-top:4px}
.pnav{display:flex;gap:10px}
.notes{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px;margin-top:18px}
.notes h2{font-size:1.1rem}
.ph-note{font-size:.86rem;background:var(--warn-bg);color:var(--warn);border-radius:10px;padding:10px 14px;margin-top:12px}

/* Formularios */
.auth{min-height:calc(100vh - 66px);display:grid;grid-template-columns:1fr 1fr}
@media (max-width:900px){.auth{grid-template-columns:1fr}.auth .aside{display:none}}
.auth .aside{background:radial-gradient(800px 400px at 100% 0,rgba(0,101,250,.35),transparent 60%),var(--navy);color:#fff;padding:64px clamp(24px,5vw,72px);display:flex;flex-direction:column;justify-content:center}
.auth .aside p{color:#c3cfe6}
.auth .formside{display:flex;align-items:center;justify-content:center;padding:48px 20px}
.fbox{width:100%;max-width:440px}
.tabs{display:flex;background:#e9edf5;border-radius:12px;padding:4px;margin-bottom:24px}
.tabs button{flex:1;border:0;background:none;font:inherit;font-weight:700;padding:10px;border-radius:9px;cursor:pointer;color:var(--mut)}
.tabs button[aria-selected=true]{background:#fff;color:var(--navy);box-shadow:0 1px 3px rgba(0,0,0,.1)}
.field{display:grid;gap:6px;margin-bottom:16px}
.field label{font-weight:700;font-size:.9rem}
.field input{font:inherit;min-height:48px;padding:0 14px;border:1.5px solid var(--line2);border-radius:var(--rs);background:#fff;color:var(--txt)}
.field input:focus{border-color:var(--blue);outline:none;box-shadow:0 0 0 4px rgba(0,101,250,.15)}
.field .hint{font-size:.8rem;color:var(--mut2)}
.check{display:flex;gap:10px;align-items:flex-start;font-size:.88rem;color:var(--mut);margin-bottom:18px}
.check input{width:20px;height:20px;margin-top:2px;accent-color:var(--blue)}
.alert{border-radius:var(--rs);padding:12px 14px;font-size:.92rem;margin-bottom:16px;font-weight:600}
.alert.err{background:var(--err-bg);color:var(--err)}
.alert.ok{background:var(--ok-bg);color:var(--ok)}
.btn-block{width:100%}

/* Examen */
.quiz{display:grid;gap:16px}
.q{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px}
.q legend{font-weight:700;font-size:1.02rem;margin-bottom:12px;padding:0}
.q fieldset{border:0;margin:0;padding:0}
.q label{display:flex;gap:12px;align-items:flex-start;padding:12px 14px;border:1.5px solid var(--line);border-radius:10px;margin-top:8px;cursor:pointer}
.q label:hover{border-color:var(--blue2)}
.q input{accent-color:var(--blue);width:18px;height:18px;margin-top:3px;flex:none}
.q.wrong{border-color:#f0b4b4;background:#fffafa}
.result{border-radius:var(--r);padding:24px;margin-bottom:18px}
.result.ok{background:var(--ok-bg)}
.result.ko{background:var(--warn-bg)}

/* Certificado */
.cert-wrap{padding:40px 0 64px}
.cert{background:#fff;border-radius:6px;box-shadow:var(--sh2);aspect-ratio:1.414/1;max-width:1000px;margin:0 auto;padding:clamp(20px,5%,56px);position:relative;display:flex;flex-direction:column;justify-content:space-between;border:1px solid var(--line);overflow:hidden}
.cert::before{content:"";position:absolute;inset:14px;border:2px solid var(--navy);border-radius:4px;pointer-events:none}
.cert::after{content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(0,101,250,.14),transparent 70%)}
.cert .top-c{display:flex;justify-content:space-between;align-items:center;gap:12px}
.cert .top-c img{width:170px;height:auto}
.cert .k{font-size:clamp(.7rem,1.4vw,.85rem);letter-spacing:.18em;text-transform:uppercase;color:var(--blue-d);font-weight:800}
.cert .name{font-size:clamp(1.6rem,4.6vw,3rem);font-weight:800;color:var(--navy);margin:.2em 0;letter-spacing:-.02em}
.cert .course{font-size:clamp(1rem,2.2vw,1.4rem);font-weight:700;color:var(--txt)}
.cert .small{font-size:clamp(.7rem,1.3vw,.88rem);color:var(--mut)}
.cert .foot-c{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap}
.cert-actions{display:flex;gap:12px;justify-content:center;margin-top:24px}
@media print{
  @page{size:A4 landscape;margin:0}
  body{background:#fff}
  .top,.cert-actions,.no-print,.foot{display:none!important}
  .cert-wrap{padding:0}
  .cert{box-shadow:none;border:0;max-width:none;width:100vw;height:100vh;aspect-ratio:auto}
}

/* Admin */
.admin-k{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:22px}
@media (max-width:860px){.admin-k{grid-template-columns:repeat(2,1fr)}}
.kpi{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 18px}
.kpi b{display:block;font-size:1.7rem;color:var(--navy)}
.kpi span{font-size:.82rem;color:var(--mut);font-weight:600}
.tbl-wrap{overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:var(--r)}
table{border-collapse:collapse;width:100%;font-size:.88rem}
th,td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:middle}
th{font-size:.75rem;text-transform:uppercase;letter-spacing:.06em;color:var(--mut2);background:#f8fafd;white-space:nowrap}
td .mini{display:flex;align-items:center;gap:8px;min-width:110px}
td .mini .track{flex:1;height:6px;background:#e6ebf4;border-radius:6px;overflow:hidden}
td .mini .fill{height:100%;background:var(--blue)}
td .mini.full .fill{background:var(--ok)}
.toolbar{display:flex;gap:12px;flex-wrap:wrap;align-items:end;margin-bottom:16px}
.toolbar .field{margin:0;min-width:220px}
.toolbar select{font:inherit;min-height:48px;padding:0 12px;border:1.5px solid var(--line2);border-radius:var(--rs);background:#fff}
.linkbtn{background:none;border:0;color:var(--blue-d);font:inherit;font-size:.82rem;font-weight:700;cursor:pointer;padding:4px 6px;border-radius:6px}
.linkbtn:hover{background:var(--sky)}
code.k{background:var(--sky);color:var(--navy);padding:3px 8px;border-radius:6px;font-weight:700;font-size:.85rem}

/* FAQ y legal */
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:0 20px;margin-bottom:10px}
.faq summary{cursor:pointer;font-weight:700;padding:18px 0;list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::after{content:"+";font-size:1.4rem;line-height:1;color:var(--blue)}
.faq details[open] summary::after{content:"−"}
.faq details p{color:var(--mut);margin:0 0 18px}
.legal{max-width:820px;padding:48px 20px 72px}
.legal h2{font-size:1.25rem;margin-top:1.6em}
.legal p,.legal li{color:#2b3650}
.callout{background:linear-gradient(120deg,var(--navy),var(--navy3));color:#fff;border-radius:22px;padding:clamp(28px,5vw,52px);display:grid;grid-template-columns:1.3fr .7fr;gap:28px;align-items:center}
.callout p{color:#c3cfe6;margin:0}
@media (max-width:860px){.callout{grid-template-columns:1fr}}

/* Pie */
.foot{background:var(--navy);color:#9fb0cf;padding:44px 0 28px;font-size:.88rem}
.foot .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:28px}
@media (max-width:760px){.foot .cols{grid-template-columns:1fr}}
.foot a{color:#c9d5ec;text-decoration:none}
.foot a:hover{color:#fff;text-decoration:underline}
.foot ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.foot h2{font-size:.8rem;text-transform:uppercase;letter-spacing:.1em;color:#fff;margin-bottom:12px}
.foot .legalbar{border-top:1px solid rgba(255,255,255,.1);margin-top:30px;padding-top:18px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.foot .brands{color:#c9d5ec}

.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(120px);background:var(--navy);color:#fff;padding:14px 20px;border-radius:12px;box-shadow:var(--sh2);font-weight:700;z-index:90;transition:transform .3s ease;display:flex;gap:10px;align-items:center}
.toast.show{transform:translateX(-50%) translateY(0)}
.toast::before{content:"";width:18px;height:18px;border-radius:50%;background:var(--ok);flex:none}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
.hint{font-size:.85rem;color:var(--mut2)}
.adm-wrap{padding-top:36px;padding-bottom:64px}
.adm-login{max-width:440px;margin:40px auto}
.toolbar.between{justify-content:space-between;align-items:center}
.toolbar.between h1{margin:0;font-size:clamp(1.4rem,3vw,2rem)}
.rowg{display:flex;gap:10px;flex-wrap:wrap}
.mt40{margin-top:40px}
.faq h3{margin:36px 0 14px}
.faq ol{margin:0 0 18px;padding-left:22px;color:var(--mut)}
.faq ol li{margin:4px 0}
.vbox .yt{padding:0;cursor:pointer;background:#000}
.vbox .yt img{width:100%;height:100%;object-fit:cover;opacity:.85}
.vbox .yt::after{content:"";position:absolute;left:50%;top:50%;width:76px;height:76px;margin:-38px 0 0 -38px;border-radius:50%;background:var(--blue) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M9 7v10l8-5z' fill='white'/%3E%3C/svg%3E") center/34px no-repeat;box-shadow:0 10px 30px rgba(0,0,0,.4)}
.chero .meta{color:#b8c6e0}
.ccard .meta svg,.chero .meta svg{flex:none}
.lessons .st{margin-left:2px}
#resume{display:flex;align-items:center}
#resume .resume{width:100%}
@media (max-width:560px){.nav.pub a.lnk{display:none}.top .wrap{gap:10px}.brand .tag{font-size:.66rem;padding:3px 7px}.nav a.lnk{padding:8px 6px}.user{margin-left:2px}}
@media (max-width:380px){.nav:not(.pub) a.lnk[href="/panel/#cursos"]{display:none}}
.nav a.lnk{white-space:nowrap}
@media (max-width:560px){.nav:not(.pub) a.lnk[href="/panel/#cursos"]{display:none}}
td{min-width:90px}
/* Escalera de 4 pasos */
.ladder{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:14px;counter-reset:r;position:relative}
.ladder::before{content:"";position:absolute;left:12%;right:12%;top:31px;height:3px;background:var(--line2);border-radius:3px;z-index:0}
.rung{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;text-align:center;gap:10px;padding:0 6px}
.rung .dot{width:64px;height:64px;border-radius:50%;display:grid;place-items:center;font-weight:800;font-size:1.35rem;background:#fff;color:var(--navy);border:3px solid var(--line2);box-shadow:var(--sh)}
.rung .rt{display:flex;flex-direction:column;align-items:center;gap:3px}
.rung .wk{font-size:.75rem;font-weight:700;color:var(--mut2);text-transform:uppercase;letter-spacing:.06em}
.rung .lv{font-size:1.25rem;color:var(--navy);letter-spacing:-.01em}
.rung .mt{font-size:.86rem;color:var(--mut);max-width:220px}
.rung .rs{margin-top:6px}
.rung.done .dot{background:var(--ok);border-color:var(--ok);color:#fff}
.rung.cur .dot{background:var(--blue);border-color:var(--blue);color:#fff;box-shadow:0 0 0 6px rgba(0,101,250,.15)}
.rung.lock .dot{background:#f1f4f9;color:var(--mut2)}
@media (max-width:760px){
  .ladder{grid-template-columns:1fr;gap:0}
  .ladder::before{left:31px;right:auto;top:20px;bottom:20px;width:3px;height:auto}
  .rung{flex-direction:row;align-items:flex-start;text-align:left;gap:16px;padding:10px 0}
  .rung .rt{align-items:flex-start}
  .rung .dot{flex:none}
}
.dh-row{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;flex-wrap:wrap}
.lvbox{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.15);border-radius:16px;padding:12px 20px;display:flex;flex-direction:column;min-width:200px}
.lvbox .k{font-size:.72rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:#8fb8ff}
.lvbox b{font-size:1.6rem;line-height:1.2;color:#fff}
.lvbox span:last-child{font-size:.82rem;color:#b8c6e0}
.ccard .cov h3 .lvn{display:block;font-size:1.5rem;letter-spacing:-.02em;margin-bottom:2px}
.ccard.locked{opacity:.72}
.ccard.locked .cov{background:linear-gradient(120deg,#33415c,#4a5878)}
.meetline{display:inline-block;font-size:.88rem;font-weight:700;color:#cfe0ff;background:rgba(0,101,250,.22);border:1px solid rgba(61,139,255,.4);padding:6px 12px;border-radius:999px}
.lockbox{border-left:4px solid var(--blue);margin-bottom:20px}
.is-locked .lessons,.is-locked .exam-card{opacity:.5;pointer-events:none}
.result .btn{margin-top:6px}
.auth .aside .ticks li{color:#dfe7f6}