/* =====================================================================
   CK Drone Academy · hoja de estilos única (web pública + campus + panel)
   Tema claro por defecto; [data-theme="oscuro"] para el modo oscuro.
   ===================================================================== */
:root{
  --bg:#f6f5f1; --sup:#ffffff; --sup2:#f1efe8; --sup3:#e9e6dc;
  --txt:#15171c; --txt2:#5c606b; --txt3:#8b8f99;
  --borde:#e5e1d6; --borde2:#d6d1c3;
  --oro:#c99a22; --oro-osc:#a67c12; --oro-txt:#8a6510; --oro-suave:#f6ebcc;
  --tinta:#0f1115; --tinta2:#1a1d24;
  --ok:#15803d; --ok-suave:#dcfce7; --error:#b91c1c; --error-suave:#fee2e2;
  --info:#1d5fd1; --info-suave:#dbeafe; --aviso:#a16207; --aviso-suave:#fef3c7;
  --sombra:0 1px 2px rgba(20,20,30,.05),0 8px 24px -12px rgba(20,20,30,.14);
  --sombra-g:0 24px 60px -24px rgba(20,20,30,.28);
  --r:14px; --r-s:10px; --r-g:22px;
  --fuente:'Plus Jakarta Sans',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,Menlo,monospace;
  --anch:1180px;
  color-scheme:light;
}
[data-theme="oscuro"]{
  --bg:#0b0c0f; --sup:#14161b; --sup2:#1b1e25; --sup3:#252932;
  --txt:#eceae4; --txt2:#a3a7b1; --txt3:#737884;
  --borde:#262a33; --borde2:#343945;
  --oro:#e2b33c; --oro-osc:#f0c75a; --oro-txt:#ebc35c; --oro-suave:#2b2412;
  --ok:#4ade80; --ok-suave:#12301d; --error:#f87171; --error-suave:#3a1616;
  --info:#7aa7ff; --info-suave:#14223f; --aviso:#facc15; --aviso-suave:#332a0b;
  --sombra:0 1px 2px rgba(0,0,0,.4),0 10px 30px -14px rgba(0,0,0,.6);
  --sombra-g:0 30px 70px -30px rgba(0,0,0,.8);
  color-scheme:dark;
}
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--txt);font-family:var(--fuente);font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;transition:background-color .3s,color .3s}
img,svg,video{max-width:100%;display:block}
a{color:inherit;text-decoration-color:color-mix(in srgb,var(--oro) 60%,transparent);text-underline-offset:3px}
a:hover{color:var(--oro-txt)}
h1,h2,h3,h4{line-height:1.15;letter-spacing:-.02em;margin:0 0 .5em;font-weight:800}
p{margin:0 0 1em}
.mono{font-family:var(--mono);font-size:.85em}
.tenue{color:var(--txt3)}
.contenedor{width:100%;max-width:var(--anch);margin:0 auto;padding:0 20px}
.saltar{position:absolute;left:-999px;top:0}.saltar:focus{left:10px;top:10px;z-index:99;background:var(--sup);padding:8px 12px;border-radius:8px}
:focus-visible{outline:2px solid var(--oro);outline-offset:2px}
.ico{flex-shrink:0;display:inline-block;vertical-align:-3px}

/* ---------- botones ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 20px;border-radius:999px;border:1px solid transparent;
  font:600 15px/1 var(--fuente);text-decoration:none;cursor:pointer;transition:transform .15s,background .2s,border-color .2s,color .2s,box-shadow .2s;white-space:nowrap}
.btn:active{transform:translateY(1px)}
.btn-sm{padding:9px 15px;font-size:14px}
.btn-xs{padding:6px 11px;font-size:13px}
.btn-oro{background:var(--oro);color:#16130a;box-shadow:0 6px 20px -8px color-mix(in srgb,var(--oro) 80%,transparent)}
.btn-oro:hover{background:var(--oro-osc);color:#16130a}
.btn-tinta{background:var(--txt);color:var(--bg)}
.btn-tinta:hover{opacity:.88;color:var(--bg)}
.btn-borde{border-color:var(--borde2);color:var(--txt);background:transparent}
.btn-borde:hover{border-color:var(--txt);color:var(--txt)}
.btn-suave{background:var(--sup2);color:var(--txt)}
.btn-suave:hover{background:var(--sup3);color:var(--txt)}
.btn-peligro{background:transparent;color:var(--error);border-color:color-mix(in srgb,var(--error) 40%,transparent)}
.btn-peligro:hover{background:var(--error-suave);color:var(--error)}
.btn[disabled]{opacity:.5;pointer-events:none}
.btn-tema{width:40px;height:40px;border-radius:50%;border:1px solid var(--borde);background:var(--sup);color:var(--txt);display:grid;place-items:center;cursor:pointer;transition:transform .3s,border-color .2s}
.btn-tema:hover{border-color:var(--oro);transform:rotate(18deg)}
.btn-tema .t-luna{display:none}
[data-theme="oscuro"] .btn-tema .t-sol{display:none}[data-theme="oscuro"] .btn-tema .t-luna{display:block}
.btn-menu{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--borde);background:var(--sup);color:var(--txt);place-items:center;cursor:pointer}

/* ---------- cabecera pública ---------- */
.cab{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:saturate(1.4) blur(14px);-webkit-backdrop-filter:saturate(1.4) blur(14px);border-bottom:1px solid transparent;transition:border-color .3s}
.cab.con-sombra{border-bottom-color:var(--borde)}
.cab-in{display:flex;align-items:center;gap:24px;height:72px}
.marca{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--txt)}
.marca img{width:40px;height:40px;border-radius:50%;object-fit:cover;background:#0f1115}
.marca-txt{display:flex;flex-direction:column;line-height:1;letter-spacing:.08em;font-size:13px}
.marca-txt b{font-weight:800}.marca-txt em{font-style:normal;color:var(--oro-txt);font-weight:700;margin-top:3px;letter-spacing:.24em;font-size:11px}
.nav{display:flex;gap:4px;margin-left:auto}
.nav a{padding:8px 13px;border-radius:999px;text-decoration:none;font-weight:500;font-size:15px;color:var(--txt2)}
.nav a:hover,.nav a.activo{color:var(--txt);background:var(--sup2)}
.cab-acciones{display:flex;align-items:center;gap:10px}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:72px 0 88px}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 12px 6px 8px;border-radius:999px;background:var(--sup);border:1px solid var(--borde);font-size:13px;font-weight:600;color:var(--txt2)}
.eyebrow .punto{width:8px;height:8px;border-radius:50%;background:#22c55e;box-shadow:0 0 0 4px color-mix(in srgb,#22c55e 25%,transparent);animation:latido 2s infinite}
@keyframes latido{50%{box-shadow:0 0 0 7px color-mix(in srgb,#22c55e 0%,transparent)}}
.hero h1{font-size:clamp(38px,5.6vw,66px);margin:20px 0 18px;letter-spacing:-.035em}
.hero h1 .oro{background:linear-gradient(100deg,var(--oro) 10%,#f2cf6b 50%,var(--oro) 90%);-webkit-background-clip:text;background-clip:text;color:transparent;background-size:200% 100%;animation:brillo 6s linear infinite}
@keyframes brillo{to{background-position:-200% 0}}
.hero-lead{font-size:clamp(17px,1.6vw,19px);color:var(--txt2);max-width:560px}
.hero-ctas{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0 30px}
.hero-datos{display:flex;gap:28px;flex-wrap:wrap}
.hero-datos div{display:flex;flex-direction:column}
.hero-datos b{font-size:26px;font-weight:800;letter-spacing:-.02em}
.hero-datos span{font-size:13px;color:var(--txt3)}
.hero-fondo{position:absolute;inset:0;z-index:-1;background:
  radial-gradient(60% 50% at 85% 20%,color-mix(in srgb,var(--oro) 18%,transparent),transparent 70%),
  radial-gradient(40% 40% at 10% 90%,color-mix(in srgb,var(--info) 10%,transparent),transparent 70%)}
.hero-fondo::after{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--borde) 1px,transparent 1px),linear-gradient(90deg,var(--borde) 1px,transparent 1px);background-size:48px 48px;mask-image:radial-gradient(70% 60% at 60% 40%,#000 20%,transparent 75%);-webkit-mask-image:radial-gradient(70% 60% at 60% 40%,#000 20%,transparent 75%);opacity:.6}
/* tarjeta "radar" del hero */
.radar{position:relative;aspect-ratio:1;border-radius:32px;background:var(--tinta);color:#e9e6dc;overflow:hidden;box-shadow:var(--sombra-g);border:1px solid #23262e}
.radar-circ{position:absolute;inset:0;display:grid;place-items:center}
.radar-circ i{position:absolute;border:1px solid rgba(226,179,60,.22);border-radius:50%}
.radar-circ i:nth-child(1){width:30%;height:30%}.radar-circ i:nth-child(2){width:55%;height:55%}.radar-circ i:nth-child(3){width:80%;height:80%}.radar-circ i:nth-child(4){width:105%;height:105%}
.radar-barrido{position:absolute;inset:-10%;background:conic-gradient(from 0deg,rgba(226,179,60,.32),transparent 22%);animation:giro 5s linear infinite;border-radius:50%}
@keyframes giro{to{transform:rotate(360deg)}}
.radar-dron{position:absolute;left:50%;top:50%;width:84px;height:84px;margin:-42px;color:#e2b33c;animation:flota 5s ease-in-out infinite;filter:drop-shadow(0 6px 18px rgba(226,179,60,.35))}
@keyframes flota{50%{transform:translateY(-10px) rotate(3deg)}}
.radar-blip{position:absolute;width:9px;height:9px;border-radius:50%;background:#4ade80;box-shadow:0 0 12px #4ade80;animation:blip 3s infinite}
@keyframes blip{0%,100%{opacity:.15}40%{opacity:1}}
.radar-tag{position:absolute;padding:8px 12px;border-radius:12px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);backdrop-filter:blur(8px);font-size:12px;line-height:1.3}
.radar-tag b{display:block;color:#fff;font-size:13px}
.radar-tag small{color:#9ea3ad;font-family:var(--mono);font-size:11px}

/* ---------- secciones ---------- */
.seccion{padding:88px 0}
.seccion-alt{background:var(--sup);border-block:1px solid var(--borde)}
.seccion-oscura{background:var(--tinta);color:#ecebe6}
.seccion-oscura .sub{color:#a2a6b0}
.sec-cab{max-width:680px;margin-bottom:44px}
.sec-cab.centro{margin-inline:auto;text-align:center}
.etq{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--oro-txt);margin-bottom:12px}
.seccion-oscura .etq{color:#e2b33c}
.sec-cab h2{font-size:clamp(30px,3.6vw,44px)}
.sub{color:var(--txt2);font-size:18px}
.rejilla{display:grid;gap:20px}
.r2{grid-template-columns:repeat(2,1fr)}.r3{grid-template-columns:repeat(3,1fr)}.r4{grid-template-columns:repeat(4,1fr)}
.tarjeta{background:var(--sup);border:1px solid var(--borde);border-radius:var(--r-g);padding:26px;box-shadow:var(--sombra);transition:transform .25s,border-color .25s,box-shadow .25s}
.tarjeta-hover:hover{transform:translateY(-4px);border-color:color-mix(in srgb,var(--oro) 50%,var(--borde));box-shadow:var(--sombra-g)}
.ico-caja{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;background:var(--oro-suave);color:var(--oro-txt);margin-bottom:16px}
.tarjeta h3{font-size:20px}
.tarjeta p{color:var(--txt2);margin:0}

/* ---------- ruta formativa ---------- */
.ruta{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;position:relative}
.ruta::before{content:"";position:absolute;top:31px;left:8%;right:8%;height:2px;background:linear-gradient(90deg,var(--oro),color-mix(in srgb,var(--oro) 20%,transparent));z-index:0}
.ruta-paso{position:relative;z-index:1;text-align:center;padding:0 6px}
.ruta-num{width:62px;height:62px;border-radius:50%;margin:0 auto 14px;display:grid;place-items:center;background:var(--sup);border:2px solid var(--oro);font-weight:800;font-size:15px;color:var(--oro-txt)}
.seccion-oscura .ruta-num{background:var(--tinta2);color:#e2b33c}
.ruta-paso h4{font-size:17px;margin-bottom:4px}
.ruta-paso p{font-size:14px;color:var(--txt2);margin:0}
.seccion-oscura .ruta-paso p{color:#a2a6b0}

/* ---------- cursos / precios ---------- */
.filtros{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:28px}
.chip{padding:8px 16px;border-radius:999px;border:1px solid var(--borde);background:var(--sup);color:var(--txt2);font:600 14px var(--fuente);cursor:pointer;transition:all .2s}
.chip:hover{color:var(--txt);border-color:var(--borde2)}
.chip.activo{background:var(--txt);color:var(--bg);border-color:var(--txt)}
.cursos{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}
.curso{position:relative;display:flex;flex-direction:column;background:var(--sup);border:1px solid var(--borde);border-radius:var(--r-g);padding:26px;box-shadow:var(--sombra);transition:transform .25s,box-shadow .25s,border-color .25s}
.curso:hover{transform:translateY(-4px);box-shadow:var(--sombra-g)}
.curso.destacado{border:1.5px solid var(--oro);background:linear-gradient(180deg,color-mix(in srgb,var(--oro) 8%,var(--sup)),var(--sup) 40%)}
.curso-cinta{position:absolute;top:-12px;right:20px;background:var(--oro);color:#16130a;font-size:12px;font-weight:800;padding:5px 12px;border-radius:999px;letter-spacing:.04em}
.curso-meta{display:flex;gap:8px;align-items:center;margin-bottom:14px;flex-wrap:wrap}
.curso h3{font-size:22px;margin-bottom:8px}
.curso-resumen{color:var(--txt2);font-size:15px;margin-bottom:18px}
.precio{display:flex;align-items:baseline;gap:10px;margin:auto 0 4px;padding-top:6px}
.precio b{font-size:36px;font-weight:800;letter-spacing:-.03em}
.precio s{color:var(--txt3);font-size:17px}
.precio-iva{font-size:12px;color:var(--txt3);margin-bottom:16px}
.ahorro{font-size:12px;font-weight:700;color:var(--ok);background:var(--ok-suave);padding:3px 8px;border-radius:999px}
.lista-check{list-style:none;padding:0;margin:0 0 20px;display:grid;gap:8px}
.lista-check li{display:flex;gap:10px;font-size:14.5px;color:var(--txt2)}
.lista-check li::before{content:"";flex-shrink:0;width:18px;height:18px;margin-top:2px;border-radius:50%;background:var(--oro-suave) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23a67c12' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E") center/11px no-repeat}
.curso-acciones{display:flex;gap:8px}
.curso-acciones .btn{flex:1}

/* ---------- tabla comparativa ---------- */
.tabla-wrap{overflow-x:auto;border:1px solid var(--borde);border-radius:var(--r);background:var(--sup)}
table.tabla{width:100%;border-collapse:collapse;font-size:14.5px}
.tabla th,.tabla td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--borde);vertical-align:middle}
.tabla th{font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--txt3);font-weight:700;background:var(--sup2)}
.tabla tr:last-child td{border-bottom:0}
.tabla tbody tr{transition:background .15s}
.tabla tbody tr:hover{background:var(--sup2)}
.tabla .num{text-align:right;font-variant-numeric:tabular-nums}
.tabla a.fila-link{font-weight:600;text-decoration:none}

/* ---------- instructor / faq / cta ---------- */
.instructor{display:grid;grid-template-columns:.8fr 1.2fr;gap:56px;align-items:center}
.instructor-foto{aspect-ratio:4/5;border-radius:28px;background:var(--tinta);position:relative;overflow:hidden;display:grid;place-items:center;box-shadow:var(--sombra-g)}
.instructor-foto img{width:56%;border-radius:50%;opacity:.95}
.instructor-foto::after{content:"";position:absolute;inset:0;background:radial-gradient(60% 50% at 50% 30%,rgba(226,179,60,.25),transparent)}
.certs{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0}
.cert{padding:7px 12px;border-radius:10px;background:var(--sup2);border:1px solid var(--borde);font-size:13px;font-weight:700;font-family:var(--mono)}
.faq{max-width:820px;margin:0 auto}
.faq details{border-bottom:1px solid var(--borde);padding:4px 0}
.faq summary{list-style:none;cursor:pointer;padding:18px 40px 18px 0;font-weight:700;font-size:17px;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);font-size:24px;font-weight:400;color:var(--oro-txt);transition:transform .25s}
.faq details[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq details p{color:var(--txt2);padding-bottom:16px;margin:0}
.cta-banda{border-radius:28px;padding:56px;background:var(--tinta);color:#ecebe6;position:relative;overflow:hidden;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.cta-banda::before{content:"";position:absolute;inset:0;background:radial-gradient(50% 80% at 100% 0,rgba(226,179,60,.3),transparent 60%)}
.cta-banda>*{position:relative}
.cta-banda h2{font-size:clamp(26px,3vw,38px);margin:0 0 6px}
.cta-banda p{color:#a2a6b0;margin:0}

/* ---------- página de curso ---------- */
.curso-hero{padding:56px 0 32px}
.migas{font-size:14px;color:var(--txt3);margin-bottom:16px}.migas a{text-decoration:none}
.curso-layout{display:grid;grid-template-columns:1fr 360px;gap:40px;align-items:start;padding-bottom:88px}
.caja-compra{position:sticky;top:92px}
.compra-grid{display:grid;grid-template-columns:1fr 380px;gap:40px;align-items:start}
.compra-grid .tarjeta{margin-bottom:16px}
.bloque{margin-bottom:36px}
.bloque h2{font-size:24px}

/* ---------- formularios ---------- */
.form{display:grid;gap:16px}
.form-fila{display:grid;grid-template-columns:1fr 1fr;gap:16px}
label.campo{display:grid;gap:6px;font-size:14px;font-weight:600;color:var(--txt2)}
.campo small{font-weight:400;color:var(--txt3)}
input[type=text],input[type=email],input[type=password],input[type=tel],input[type=number],input[type=date],input[type=datetime-local],input[type=url],input[type=search],select,textarea{
  width:100%;padding:12px 14px;border-radius:12px;border:1px solid var(--borde2);background:var(--sup);color:var(--txt);font:15px var(--fuente);transition:border-color .2s,box-shadow .2s}
textarea{min-height:120px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:0;border-color:var(--oro);box-shadow:0 0 0 4px color-mix(in srgb,var(--oro) 18%,transparent)}
input[type=file]{font:14px var(--fuente);color:var(--txt2)}
.check{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--txt2);font-weight:500}
.check input{margin-top:4px;accent-color:var(--oro);width:17px;height:17px}
.hp{position:absolute;left:-9999px}

/* ---------- avisos / badges ---------- */
.aviso{padding:13px 16px;border-radius:12px;margin:16px 0;font-size:15px;border:1px solid}
.aviso-ok{background:var(--ok-suave);color:var(--ok);border-color:color-mix(in srgb,var(--ok) 30%,transparent)}
.aviso-error{background:var(--error-suave);color:var(--error);border-color:color-mix(in srgb,var(--error) 30%,transparent)}
.aviso-info{background:var(--info-suave);color:var(--info);border-color:color-mix(in srgb,var(--info) 30%,transparent)}
.aviso-aviso{background:var(--aviso-suave);color:var(--aviso);border-color:color-mix(in srgb,var(--aviso) 30%,transparent)}
.badge{display:inline-flex;align-items:center;gap:5px;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:700;white-space:nowrap;background:var(--sup2);color:var(--txt2);border:1px solid var(--borde)}
.badge-ok{background:var(--ok-suave);color:var(--ok);border-color:transparent}
.badge-error{background:var(--error-suave);color:var(--error);border-color:transparent}
.badge-info{background:var(--info-suave);color:var(--info);border-color:transparent}
.badge-oro{background:var(--oro-suave);color:var(--oro-txt);border-color:transparent}
.badge-aviso{background:var(--aviso-suave);color:var(--aviso);border-color:transparent}
.pill{margin-left:auto;background:var(--oro);color:#16130a;font-size:11px;min-width:20px;height:20px;padding:0 6px;border-radius:999px;display:grid;place-items:center}

/* ---------- pie ---------- */
.pie{background:var(--sup);border-top:1px solid var(--borde);padding:56px 0 24px;margin-top:0}
.pie-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px}
.pie h4{font-size:13px;text-transform:uppercase;letter-spacing:.12em;color:var(--txt3);margin-bottom:14px}
.pie a{display:block;text-decoration:none;color:var(--txt2);padding:3px 0;font-size:15px}
.pie a:hover{color:var(--oro-txt)}
.pie .marca{display:inline-flex;margin-bottom:14px}
.pie-txt{color:var(--txt2);font-size:14.5px;max-width:340px}
.pie-txt a{display:inline;padding:0}
.pie-legal{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:36px;padding-top:20px;border-top:1px solid var(--borde);font-size:13px;color:var(--txt3)}
.pie-legal a{display:inline;font-size:13px}
.wa-flotante{position:fixed;right:20px;bottom:20px;z-index:60;width:58px;height:58px;border-radius:50%;background:#25d366;color:#fff;display:grid;place-items:center;box-shadow:0 10px 30px -8px rgba(37,211,102,.6);transition:transform .2s}
.wa-flotante:hover{transform:scale(1.08);color:#fff}

/* ---------- auth ---------- */
.auth{min-height:calc(100vh - 72px);display:grid;place-items:center;padding:48px 20px}
.auth-caja{width:100%;max-width:440px}
.auth-caja .tarjeta{padding:34px}
.auth-caja h1{font-size:28px}

/* ---------- animaciones de entrada ---------- */
.revelar{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.revelar.visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.revelar{opacity:1;transform:none}}

/* =====================================================================
   APP (campus alumno + panel instructor)
   ===================================================================== */
.app-wrap{display:flex;min-height:100vh}
.lateral{width:258px;flex-shrink:0;background:var(--sup);border-right:1px solid var(--borde);display:flex;flex-direction:column;position:sticky;top:0;height:100vh;padding:18px 14px;z-index:70}
.lateral-cab{padding:4px 8px 16px}
.lateral-rol{font-size:11px;letter-spacing:.14em;text-transform:uppercase;font-weight:700;color:var(--txt3);padding:6px 12px 10px}
.lateral-nav{display:grid;gap:2px}
.lateral-nav a{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:12px;text-decoration:none;color:var(--txt2);font-weight:600;font-size:14.5px;transition:background .15s,color .15s}
.lateral-nav a:hover{background:var(--sup2);color:var(--txt)}
.lateral-nav a.activo{background:var(--txt);color:var(--bg)}
.lateral-nav a.activo .ico{color:var(--oro)}
.lateral-pie{margin-top:auto;padding-top:12px;border-top:1px solid var(--borde)}
.lateral-web{display:flex;gap:10px;align-items:center;padding:10px 12px;text-decoration:none;color:var(--txt3);font-size:14px}
.app-main{flex:1;min-width:0;display:flex;flex-direction:column}
.app-cab{position:sticky;top:0;z-index:40;display:flex;align-items:center;gap:14px;padding:14px 28px;background:color-mix(in srgb,var(--bg) 85%,transparent);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--borde)}
.app-titulo{font-size:20px;margin:0;font-weight:800}
.app-cab-der{margin-left:auto;display:flex;align-items:center;gap:10px}
.app-cuerpo{padding:28px;max-width:1320px;width:100%}
.avatar-menu{position:relative}
.avatar{width:40px;height:40px;border-radius:50%;border:0;background:linear-gradient(135deg,var(--oro),#f0cf72);color:#16130a;font:800 14px var(--fuente);cursor:pointer}
.desplegable{position:absolute;right:0;top:calc(100% + 8px);min-width:230px;background:var(--sup);border:1px solid var(--borde);border-radius:14px;box-shadow:var(--sombra-g);padding:6px;display:none}
.desplegable.abierto{display:block}
.desplegable-cab{padding:10px 12px;border-bottom:1px solid var(--borde);margin-bottom:4px}
.desplegable-cab b{display:block;font-size:14px}.desplegable-cab small{color:var(--txt3)}
.desplegable a,.desplegable button{display:flex;gap:10px;align-items:center;width:100%;padding:9px 12px;border:0;background:none;border-radius:10px;color:var(--txt);font:500 14px var(--fuente);text-decoration:none;cursor:pointer}
.desplegable a:hover,.desplegable button:hover{background:var(--sup2)}
.velo{display:none}

/* KPIs */
.panel-grid.lista-izq{grid-template-columns:320px 1fr}
.hilo{display:grid;gap:12px}
.burbuja{max-width:88%;padding:12px 16px;border-radius:16px;font-size:14.5px;background:var(--sup2);border:1px solid var(--borde)}
.burbuja.mia{justify-self:end;background:var(--oro-suave);border-color:transparent}
.burbuja.suya{justify-self:start}
.burbuja-cab{font-size:13px;margin-bottom:6px;color:var(--txt2)}
.burbuja-cab small{display:block;color:var(--txt3);font-size:11.5px}
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:16px;margin-bottom:24px}
.kpi{background:var(--sup);border:1px solid var(--borde);border-radius:var(--r);padding:18px 20px;text-decoration:none;color:var(--txt);transition:border-color .2s,transform .2s;display:block}
a.kpi:hover{border-color:var(--oro);transform:translateY(-2px);color:var(--txt)}
.kpi small{display:flex;align-items:center;gap:8px;color:var(--txt3);font-size:13px;font-weight:600}
.kpi b{display:block;font-size:30px;font-weight:800;letter-spacing:-.03em;margin-top:6px;line-height:1.1}
.kpi span{font-size:13px;color:var(--txt2)}
.kpi-oro{background:var(--tinta);color:#ecebe6;border-color:var(--tinta)}
.kpi-oro small{color:#a2a6b0}.kpi-oro span{color:#c9c6bd}.kpi-oro b{color:#e2b33c}
.panel-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:20px}
.caja{background:var(--sup);border:1px solid var(--borde);border-radius:var(--r);padding:22px;margin-bottom:20px}
.caja-cab{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;flex-wrap:wrap}
.caja-cab h2,.caja-cab h3{font-size:17px;margin:0}
.caja .tabla-wrap{border:0;border-radius:0;margin:0 -22px -22px;width:calc(100% + 44px)}
.caja .tabla th:first-child,.caja .tabla td:first-child{padding-left:22px}
.caja .tabla th:last-child,.caja .tabla td:last-child{padding-right:22px}
.barra{height:8px;border-radius:999px;background:var(--sup3);overflow:hidden;min-width:80px}
.barra span{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--oro),#f0cf72);transition:width 1s cubic-bezier(.2,.7,.2,1)}
.barra-g{height:12px}
.fila-prog{display:flex;align-items:center;gap:10px}.fila-prog .barra{flex:1}.fila-prog b{font-size:13px;min-width:38px;text-align:right}
.alumno-celda{display:flex;align-items:center;gap:10px}
.mini-avatar{width:34px;height:34px;border-radius:50%;background:var(--sup3);display:grid;place-items:center;font-size:12px;font-weight:800;color:var(--txt2);flex-shrink:0}
.feed{list-style:none;margin:0;padding:0}
.feed li{display:flex;gap:12px;padding:10px 0;border-bottom:1px solid var(--borde);font-size:14px}
.feed li:last-child{border:0}
.feed-ico{width:32px;height:32px;border-radius:10px;display:grid;place-items:center;background:var(--sup2);color:var(--txt2);flex-shrink:0}
.feed small{display:block;color:var(--txt3);font-size:12px}
.barras-v{display:flex;align-items:flex-end;gap:8px;height:120px;padding-top:10px}
.barras-v div{flex:1;display:flex;flex-direction:column;align-items:center;gap:6px;height:100%;justify-content:flex-end}
.barras-v i{display:block;width:100%;max-width:34px;border-radius:8px 8px 3px 3px;background:linear-gradient(180deg,var(--oro),color-mix(in srgb,var(--oro) 40%,transparent));min-height:3px}
.barras-v span{font-size:11px;color:var(--txt3)}
.herramientas{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:18px}
.herramientas input[type=search],.herramientas select{width:auto;min-width:180px;padding:9px 12px}
.acciones-fila{display:flex;gap:6px;justify-content:flex-end;flex-wrap:wrap}
.vacio{text-align:center;padding:40px 20px;color:var(--txt3)}
.vacio .ico{margin:0 auto 10px;opacity:.5}
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--borde);margin-bottom:20px;overflow-x:auto}
.tabs a{padding:10px 16px;text-decoration:none;font-weight:600;font-size:14.5px;color:var(--txt2);border-bottom:2px solid transparent;margin-bottom:-1px;white-space:nowrap}
.tabs a.activo{color:var(--txt);border-color:var(--oro)}
.dl{display:grid;grid-template-columns:140px 1fr;gap:8px 16px;font-size:14.5px;margin:0}
.dl dt{color:var(--txt3)}.dl dd{margin:0;word-break:break-word}

/* tarjetas de categoría en el campus */
.cat-tarjetas{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;margin-bottom:24px}
.cat-t{background:var(--sup);border:1px solid var(--borde);border-radius:var(--r-g);padding:22px;position:relative;overflow:hidden}
.cat-t::after{content:attr(data-cat);position:absolute;right:-6px;top:-14px;font-size:84px;font-weight:800;color:var(--sup2);letter-spacing:-.05em;z-index:0;line-height:1}
.cat-t>*{position:relative;z-index:1}
.cat-t h3{font-size:19px;margin-bottom:12px}
.cat-t .mini{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:14px 0}
.cat-t .mini div{background:var(--sup2);border-radius:10px;padding:8px;text-align:center}
.cat-t .mini b{display:block;font-size:17px}.cat-t .mini span{font-size:11px;color:var(--txt3)}
.lista-items{display:grid;gap:8px}
.item{display:flex;align-items:center;gap:14px;padding:14px 16px;background:var(--sup);border:1px solid var(--borde);border-radius:14px;text-decoration:none;color:var(--txt);transition:border-color .2s,transform .2s}
a.item:hover{border-color:var(--oro);transform:translateX(3px);color:var(--txt)}
.item-num{width:36px;height:36px;border-radius:10px;background:var(--sup2);display:grid;place-items:center;font-weight:800;font-size:14px;flex-shrink:0}
.item.hecho .item-num{background:var(--ok-suave);color:var(--ok)}
.item-txt{flex:1;min-width:0}.item-txt b{display:block;font-size:15px}.item-txt small{color:var(--txt3)}

/* lector de manuales con marca de agua */
.lector{position:relative;max-width:820px;margin:0 auto;background:var(--sup);border:1px solid var(--borde);border-radius:var(--r-g);padding:48px 56px;
  -webkit-user-select:none;user-select:none;overflow:hidden}
.lector-marca{position:absolute;inset:0;pointer-events:none;z-index:5;background-repeat:repeat}
.lector-contenido{position:relative;z-index:1;font-size:17px;line-height:1.75}
.lector-contenido h2{font-size:26px;margin-top:1.6em}.lector-contenido h3{font-size:21px;margin-top:1.4em}
.lector-contenido img{border-radius:12px;margin:18px auto;pointer-events:none}
.lector-contenido blockquote{margin:20px 0;padding:14px 20px;border-left:4px solid var(--oro);background:var(--oro-suave);border-radius:0 12px 12px 0}
.lector-contenido table{border-collapse:collapse;width:100%;margin:18px 0;font-size:15px}
.lector-contenido td,.lector-contenido th{border:1px solid var(--borde);padding:8px 10px}
.lector-contenido mark,.editor mark{background:var(--oro-suave);color:inherit;padding:0 3px;border-radius:4px}
.lector-nav{display:flex;justify-content:space-between;gap:12px;max-width:820px;margin:20px auto 0}
.lector-progreso{position:fixed;left:0;top:0;height:3px;background:var(--oro);z-index:100;width:0;transition:width .1s}
.pdf-paginas{display:grid;gap:18px;justify-items:center}
.pdf-pagina{position:relative;box-shadow:var(--sombra);border-radius:6px;overflow:hidden;background:#fff;max-width:100%}
.pdf-pagina canvas{display:block;max-width:100%;height:auto}
.video-caja{position:relative;border-radius:var(--r-g);overflow:hidden;background:#000;aspect-ratio:16/9;box-shadow:var(--sombra-g)}
.video-caja video,.video-caja iframe{width:100%;height:100%;border:0;display:block}
.video-marca{position:absolute;z-index:3;pointer-events:none;color:rgba(255,255,255,.38);font:600 13px var(--fuente);text-shadow:0 1px 2px rgba(0,0,0,.5);transition:top 2s,left 2s;white-space:nowrap}
.video-marca small{display:block;font-weight:400;font-size:11px}
@media print{body.protegido *{display:none!important}body.protegido::after{content:"Contenido protegido · CK Drone Academy";display:block;padding:40px;font:20px sans-serif}}

/* tests */
.test-cab{position:sticky;top:69px;z-index:30;display:flex;align-items:center;gap:14px;padding:12px 16px;background:var(--sup);border:1px solid var(--borde);border-radius:14px;margin-bottom:18px;box-shadow:var(--sombra)}
.crono{font-family:var(--mono);font-size:18px;font-weight:700;padding:6px 12px;border-radius:10px;background:var(--sup2)}
.crono.urgente{background:var(--error-suave);color:var(--error)}
.pregunta{background:var(--sup);border:1px solid var(--borde);border-radius:var(--r);padding:22px;margin-bottom:14px}
.pregunta-num{font-size:12px;font-weight:800;letter-spacing:.1em;color:var(--oro-txt);text-transform:uppercase;margin-bottom:6px}
.pregunta h3{font-size:17px;font-weight:700;line-height:1.45;margin-bottom:14px}
.opciones{display:grid;gap:8px}
.opcion{display:flex;gap:12px;align-items:flex-start;padding:12px 14px;border:1.5px solid var(--borde);border-radius:12px;cursor:pointer;transition:border-color .15s,background .15s;font-size:15px}
.opcion:hover{border-color:var(--borde2);background:var(--sup2)}
.opcion input{margin-top:4px;accent-color:var(--oro);width:17px;height:17px;flex-shrink:0}
.opcion:has(input:checked){border-color:var(--oro);background:var(--oro-suave)}
.opcion .letra{font-weight:800;color:var(--txt3);min-width:16px}
.opcion.correcta{border-color:var(--ok);background:var(--ok-suave)}
.opcion.fallada{border-color:var(--error);background:var(--error-suave)}
.explicacion{margin-top:12px;padding:12px 14px;border-radius:12px;background:var(--info-suave);color:var(--txt);font-size:14.5px}
.resultado-hero{display:flex;align-items:center;gap:28px;flex-wrap:wrap}
.anillo{--p:0;width:150px;height:150px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(var(--c,var(--oro)) calc(var(--p)*1%),var(--sup3) 0);position:relative}
.anillo::before{content:"";position:absolute;inset:12px;border-radius:50%;background:var(--sup)}
.anillo b{position:relative;font-size:32px;font-weight:800}
.mapa-preg{display:flex;flex-wrap:wrap;gap:6px}
.mapa-preg a{width:34px;height:34px;border-radius:9px;display:grid;place-items:center;font-size:13px;font-weight:700;text-decoration:none;background:var(--sup2);color:var(--txt2)}
.mapa-preg a.ok{background:var(--ok-suave);color:var(--ok)}.mapa-preg a.ko{background:var(--error-suave);color:var(--error)}

/* editor de capítulos */
.editor-barra{display:flex;flex-wrap:wrap;gap:4px;padding:8px;border:1px solid var(--borde2);border-bottom:0;border-radius:12px 12px 0 0;background:var(--sup2);position:sticky;top:69px;z-index:5}
.editor-barra button{min-width:34px;height:34px;border:0;border-radius:8px;background:transparent;color:var(--txt);font:700 14px var(--fuente);cursor:pointer;padding:0 8px}
.editor-barra button:hover{background:var(--sup3)}
.editor-barra .sep{width:1px;background:var(--borde2);margin:4px}
.editor{min-height:420px;padding:22px 26px;border:1px solid var(--borde2);border-radius:0 0 12px 12px;background:var(--sup);font-size:16px;line-height:1.7;outline:0}
.editor:focus{border-color:var(--oro)}
.editor img{max-width:100%;border-radius:8px}
.editor blockquote{border-left:4px solid var(--oro);margin:12px 0;padding:8px 16px;background:var(--oro-suave)}

/* =====================================================================
   RESPONSIVE
   ===================================================================== */
@media (max-width:1080px){
  .r4{grid-template-columns:repeat(2,1fr)}
  .panel-grid,.panel-grid.lista-izq{grid-template-columns:1fr}
  .curso-layout,.compra-grid{grid-template-columns:1fr}
  .caja-compra{position:static}
}
@media (max-width:900px){
  .nav{position:fixed;inset:72px 0 auto 0;flex-direction:column;background:var(--sup);border-bottom:1px solid var(--borde);padding:12px 20px 20px;gap:2px;transform:translateY(-120%);transition:transform .3s;box-shadow:var(--sombra-g);z-index:-1}
  .nav.abierto{transform:none}
  .nav a{padding:12px 14px;font-size:16px}
  .btn-menu{display:grid}
  .cab-acciones{margin-left:auto}
  .hero-grid,.instructor{grid-template-columns:1fr}
  .hero{padding:40px 0 64px}
  .radar{max-width:420px;margin:0 auto;width:100%}
  .r3{grid-template-columns:1fr 1fr}
  .ruta{grid-template-columns:1fr 1fr;row-gap:28px}.ruta::before{display:none}
  .pie-grid{grid-template-columns:1fr 1fr}
  .lateral{position:fixed;left:0;top:0;transform:translateX(-105%);transition:transform .3s;box-shadow:var(--sombra-g)}
  .lateral.abierto{transform:none}
  .velo.abierto{display:block;position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:65}
  .app-cab{padding:12px 16px}
  .app-cuerpo{padding:18px 16px}
  .lector{padding:28px 22px}
}
@media (max-width:640px){
  .contenedor{padding:0 16px}
  .ocultar-movil{display:none}
  .r2,.r3,.r4{grid-template-columns:1fr}
  .form-fila{grid-template-columns:1fr}
  .seccion{padding:64px 0}
  .cta-banda{padding:34px 24px}
  .pie-grid{grid-template-columns:1fr}
  .cursos{grid-template-columns:1fr}
  .dl{grid-template-columns:1fr}.dl dt{margin-top:6px}
  .marca-txt{display:none}
  .lateral .marca-txt,.pie .marca-txt{display:flex}
  .test-cab{top:62px}
  .tabla th,.tabla td{padding:10px}
}