/* DataMaster School — tema oscuro premium (sitio público) */
:root{
  --bg:#07070b; --bg2:#0d0d15; --card:#12121b; --card2:#181824; --line:rgba(255,255,255,.09); --line2:rgba(255,255,255,.16);
  --text:#f3f2fb; --text2:#c9c6df; --muted:#8f8cab;
  --brand:#53388A; --lilac:#ACABFF; --violet:#8b7cf6;
  --grad:linear-gradient(135deg,#ACABFF 0%,#8b7cf6 55%,#6b4bc2 100%);
  --gold:#f6c453; --gold2:#e39b1c; --wa:#22b455; --err:#ff7b7b; --ok:#5fd6a0;
  --head:'Outfit',system-ui,sans-serif; --font:'Instrument Sans',system-ui,-apple-system,'Segoe UI',sans-serif; --mono:'Fira Code',ui-monospace,Consolas,monospace;
  --nav:72px; --wrap:1240px; --sbw:310px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bg)}
body{margin:0;background:var(--bg);color:var(--text);font:400 16px/1.65 var(--font);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:var(--lilac)}
h1,h2,h3,h4{font-family:var(--head);line-height:1.15;margin:0 0 .5em;letter-spacing:-.015em;font-weight:600}
p{margin:0 0 1em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 28px}
.hl{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.muted{color:var(--muted)}
.center{text-align:center}
.inline{display:inline;margin:0}
::selection{background:rgba(172,171,255,.35)}
:focus-visible{outline:2px solid var(--lilac);outline-offset:2px}

/* ===== Botones ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:1px solid transparent;border-radius:12px;padding:13px 24px;font:600 15px/1 var(--font);text-decoration:none;cursor:pointer;transition:.18s;white-space:nowrap;color:var(--text)}
.btn-primary{background:var(--grad);color:#0b0a18;box-shadow:0 8px 28px rgba(139,124,246,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 34px rgba(139,124,246,.5);filter:brightness(1.05)}
.btn-ghost{background:rgba(255,255,255,.05);border-color:var(--line2);color:var(--text)}
.btn-ghost:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.3)}
.btn-gold{background:linear-gradient(135deg,#ffe08a,#f6c453 50%,#e39b1c);color:#2a1c00;box-shadow:0 8px 28px rgba(246,196,83,.3)}
.btn-gold:hover{transform:translateY(-2px);filter:brightness(1.06)}
.btn-wa{background:var(--wa);color:#fff}.btn-wa:hover{filter:brightness(1.1)}
.btn-sm{padding:10px 16px;font-size:14px;border-radius:10px}
.btn-lg{padding:17px 32px;font-size:17px;border-radius:14px}
.btn-block{width:100%}
.btn-link{background:none;border:0;padding:0;font:inherit;cursor:pointer;color:inherit}
.icon-btn{background:none;border:0;color:var(--text);cursor:pointer;padding:8px;border-radius:10px;display:inline-flex}
.icon-btn:hover{background:rgba(255,255,255,.08)}

/* ===== Navegación ===== */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;height:var(--nav);transition:.25s;border-bottom:1px solid transparent}
.nav.scrolled,body:not(.has-hero) .nav{background:rgba(7,7,11,.82);backdrop-filter:blur(14px);border-bottom-color:var(--line)}
.nav-in{max-width:1400px;margin:0 auto;height:100%;padding:0 28px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--text);font:700 20px var(--head);letter-spacing:-.01em}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links>a,.dd>summary{color:var(--text2);text-decoration:none;font-weight:500;font-size:15px;padding:9px 14px;border-radius:10px;cursor:pointer;list-style:none;display:inline-flex;align-items:center;gap:6px}
.nav-links>a:hover,.dd>summary:hover,.dd[open]>summary{color:#fff;background:rgba(255,255,255,.07)}
.dd{position:relative}.dd>summary::-webkit-details-marker{display:none}
.dd-menu{position:absolute;top:calc(100% + 8px);left:0;min-width:240px;background:#13131d;border:1px solid var(--line2);border-radius:14px;padding:8px;box-shadow:0 24px 60px rgba(0,0,0,.6)}
.dd-right .dd-menu{left:auto;right:0}
.dd-menu a,.dd-menu button{display:flex;justify-content:space-between;align-items:center;width:100%;text-align:left;padding:10px 14px;border-radius:9px;color:var(--text2);text-decoration:none;font:500 15px var(--font);background:none;border:0;cursor:pointer}
.dd-menu a:hover,.dd-menu button:hover{background:rgba(255,255,255,.07);color:#fff}
.dd-menu small{color:var(--muted)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.nav-login{color:var(--text2);text-decoration:none;font-weight:500;font-size:15px}.nav-login:hover{color:#fff}
.avatar{width:34px;height:34px;border-radius:50%;background:var(--grad);color:#0b0a18;display:grid;place-items:center;font:700 15px var(--head)}
.usermenu>summary{padding:4px 12px 4px 4px;gap:10px;color:var(--text2)}
.nav-burger,.nav-wa-m{display:none}

/* ===== Aviso ===== */
.flash{position:relative;z-index:5;max-width:920px;margin:calc(var(--nav) + 16px) auto -8px;padding:13px 18px;border-radius:12px;font-weight:500}
.flash-ok{background:rgba(95,214,160,.12);color:var(--ok);border:1px solid rgba(95,214,160,.3)}
.flash-err{background:rgba(255,123,123,.1);color:var(--err);border:1px solid rgba(255,123,123,.3)}

/* ===== Hero ===== */
.hero{position:relative;overflow:hidden;min-height:min(88vh,840px);display:flex;align-items:center;padding:calc(var(--nav) + 70px) 0 90px}
.hero-bg{position:absolute;inset:0;background:radial-gradient(900px 520px at 10% -8%,rgba(172,171,255,.30),transparent 62%),radial-gradient(760px 620px at 96% 28%,rgba(83,56,138,.6),transparent 62%),var(--bg)}
.hero-bg.has-img{background-size:cover;background-position:center}
.hero-bg.has-img::before{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,7,11,.96) 8%,rgba(7,7,11,.62) 48%,rgba(7,7,11,.35)),linear-gradient(0deg,var(--bg),transparent 40%)}
.hero-bg::after{content:'';position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:58px 58px;-webkit-mask-image:radial-gradient(ellipse 70% 80% at 28% 30%,#000,transparent 78%);mask-image:radial-gradient(ellipse 70% 80% at 28% 30%,#000,transparent 78%)}
.hero-art{position:absolute;right:max(0px,calc((100vw - 1400px)/2));bottom:0;height:96%;max-width:52%;object-fit:contain;object-position:bottom right;-webkit-mask-image:linear-gradient(90deg,transparent,#000 22%);mask-image:linear-gradient(90deg,transparent,#000 22%)}
.hero-in{position:relative;z-index:2;max-width:660px}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font:500 13.5px var(--mono);color:var(--lilac);background:rgba(172,171,255,.1);border:1px solid rgba(172,171,255,.25);padding:7px 15px;border-radius:99px;margin-bottom:26px}
.hero h1{font-size:clamp(40px,6.2vw,76px);font-weight:700;margin-bottom:22px;letter-spacing:-.03em}
.hero p.lead{font-size:clamp(17px,1.6vw,20px);color:var(--text2);max-width:560px;margin-bottom:34px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:34px;margin-top:46px;flex-wrap:wrap}
.hero-stats b{display:block;font:700 30px var(--head);color:#fff}.hero-stats span{color:var(--muted);font-size:14px}

/* ===== Secciones ===== */
.section{padding:64px 0}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:26px}
.section-head h2{font-size:clamp(26px,3.2vw,38px);margin:0}
.section-head p{margin:6px 0 0;color:var(--muted)}
.see-all{color:var(--lilac);text-decoration:none;font-weight:600;font-size:15px;white-space:nowrap;display:inline-flex;gap:6px;align-items:center}.see-all:hover{color:#fff}
.page-hero{padding:calc(var(--nav) + 56px) 0 30px;background:radial-gradient(800px 380px at 15% 0,rgba(172,171,255,.16),transparent 65%)}
.page-hero h1{font-size:clamp(34px,4.6vw,54px);margin-bottom:10px}
.page-hero p{color:var(--text2);max-width:680px;font-size:18px}
.crumbs{font-size:14px;color:var(--muted);margin-bottom:12px}.crumbs a{color:var(--muted);text-decoration:none}.crumbs a:hover{color:var(--lilac)}

/* Escuelas */
.schools{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:20px}
.school{position:relative;display:flex;align-items:flex-end;min-height:210px;border-radius:20px;overflow:hidden;text-decoration:none;color:#fff;border:1px solid var(--line);background:linear-gradient(135deg,#1a1230,#2a1b52 60%,#3b2a74);transition:.25s}
.school:hover{transform:translateY(-4px);border-color:rgba(172,171,255,.55);box-shadow:0 20px 50px rgba(83,56,138,.4)}
.school img.bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:.5s}
.school:hover img.bg{transform:scale(1.06)}
.school::after{content:'';position:absolute;inset:0;background:linear-gradient(0deg,rgba(7,7,11,.92),rgba(7,7,11,.1) 70%)}
.school-in{position:relative;z-index:2;padding:22px;width:100%}
.school h3{font-size:24px;margin:0 0 4px}.school span{color:var(--text2);font-size:14px}
.school .glyph{position:absolute;top:18px;right:18px;z-index:2;width:42px;height:42px;opacity:.55}

/* Carrusel / pósters */
.row-wrap{position:relative}
.row-track{display:flex;gap:18px;overflow-x:auto;scroll-snap-type:x proximity;scrollbar-width:none;padding:6px 0 14px;scroll-behavior:smooth}
.row-track::-webkit-scrollbar{display:none}
.row-arrows{display:flex;gap:8px}
.row-arrows button{width:40px;height:40px;border-radius:50%;border:1px solid var(--line2);background:rgba(255,255,255,.05);color:#fff;cursor:pointer;display:grid;place-items:center;transition:.15s}
.row-arrows button:hover{background:rgba(255,255,255,.14)}
.row-arrows button:first-child svg{transform:rotate(180deg)}
.poster{flex:0 0 232px;scroll-snap-align:start;text-decoration:none;color:var(--text);display:block;transition:.25s}
.poster:hover{transform:translateY(-6px)}
.poster-art{position:relative;aspect-ratio:3/4;border-radius:18px;overflow:hidden;border:1px solid var(--line);background:var(--card);box-shadow:0 14px 40px rgba(0,0,0,.45)}
.poster-art img:not(.poster-logo){width:100%;height:100%;object-fit:cover;transition:.5s}
.poster:hover .poster-art{border-color:rgba(172,171,255,.6);box-shadow:0 20px 50px rgba(83,56,138,.45)}
.poster:hover .poster-art img:not(.poster-logo){transform:scale(1.05)}
.poster-gen{background:linear-gradient(160deg,#2b1c57 0%,#1a1235 55%,#0e0a1d),var(--card);display:flex;align-items:flex-end;padding:20px}
.poster-gen::before{content:'';position:absolute;width:260px;height:260px;right:-90px;top:-90px;background:radial-gradient(circle,rgba(172,171,255,.45),transparent 65%)}
.poster-title{position:relative;z-index:2;font:700 25px/1.1 var(--head);letter-spacing:-.02em}
.poster-logo{position:absolute;top:18px;left:18px;width:38px;height:38px;opacity:.9}
.chip-gold{position:absolute;top:12px;right:12px;z-index:3;display:inline-flex;align-items:center;gap:5px;background:linear-gradient(135deg,#ffe08a,#f6c453 55%,#e39b1c);color:#2a1c00;font:700 11.5px var(--font);padding:5px 10px;border-radius:99px;letter-spacing:.03em}
.poster-body{padding:14px 4px 0}.poster-body h3{font-size:17px;margin:0 0 6px;font-weight:600;line-height:1.25}
.poster-meta{display:flex;align-items:center;gap:7px;color:var(--muted);font-size:13.5px;flex-wrap:wrap}.poster-meta b{color:var(--text)}.poster-meta .dot{opacity:.5}

/* Estrellas */
.stars{display:inline-flex;gap:2px;vertical-align:middle}
.stars i{display:block;width:var(--s,16px);height:var(--s,16px);background:linear-gradient(90deg,var(--gold) var(--f,0%),rgba(255,255,255,.2) var(--f,0%));-webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpolygon points='12 2 15.09 8.26 22 9.27 17 14.14 18.18 21.02 12 17.77 5.82 21.02 7 14.14 2 9.27 8.91 8.26 12 2'/%3E%3C/svg%3E") center/contain no-repeat;mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpolygon points='12 2 15.09 8.26 22 9.27 17 14.14 18.18 21.02 12 17.77 5.82 21.02 7 14.14 2 9.27 8.91 8.26 12 2'/%3E%3C/svg%3E") center/contain no-repeat}

/* Banda premium */
.band{position:relative;overflow:hidden;border-radius:28px;border:1px solid rgba(246,196,83,.28);padding:clamp(32px,5vw,64px);background:linear-gradient(120deg,#1b1306 0%,#120e1d 55%,#1b1236 100%);display:grid;grid-template-columns:1.2fr .8fr;gap:30px;align-items:center}
.band::before{content:'';position:absolute;inset:0;background:radial-gradient(600px 300px at 0 0,rgba(246,196,83,.16),transparent 65%)}
.band>*{position:relative}
.band h2{font-size:clamp(28px,3.6vw,44px)}
.band p{color:var(--text2);font-size:18px}
.band-img{border-radius:20px;aspect-ratio:4/3;object-fit:cover;width:100%;border:1px solid var(--line2);box-shadow:0 24px 60px rgba(0,0,0,.5)}
.band-art{aspect-ratio:4/3;border-radius:20px;border:1px solid var(--line2);display:grid;place-items:center;background:linear-gradient(135deg,rgba(246,196,83,.1),rgba(172,171,255,.12))}
.band-art svg{width:88px;height:88px;color:var(--gold)}
.perks{list-style:none;margin:0 0 24px;padding:0;display:grid;gap:10px}
.perks li{display:flex;gap:11px;align-items:flex-start;color:var(--text2)}.perks svg{color:var(--gold);flex:0 0 auto;margin-top:3px}

/* Opiniones (marquee) */
.marquee{overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent)}
.marquee-track{display:flex;gap:18px;width:max-content;animation:mq 60s linear infinite}
.marquee:hover .marquee-track{animation-play-state:paused}
@keyframes mq{to{transform:translateX(-50%)}}
.review{flex:0 0 340px;background:var(--card);border:1px solid var(--line);border-radius:18px;padding:22px;display:flex;flex-direction:column;gap:12px}
.review p{color:var(--text2);margin:0;font-size:15px;flex:1}
.review .who{display:flex;align-items:center;gap:11px;font-size:14px}.review .who b{display:block;color:#fff;font-weight:600}.review .who span{color:var(--muted);font-size:13px}
.reviews-static{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px}
.reviews-static .review{flex:initial}

/* CTA final */
.cta-final{text-align:center;padding:90px 0 70px;background:radial-gradient(700px 320px at 50% 100%,rgba(139,124,246,.28),transparent 70%)}
.cta-final h2{font-size:clamp(30px,4.4vw,54px);max-width:760px;margin:0 auto 16px}
.cta-final p{color:var(--text2);max-width:560px;margin:0 auto 28px;font-size:18px}
.cta-final .row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ===== Footer ===== */
.footer{border-top:1px solid var(--line);background:#050508;padding:56px 0 26px}
.footer-in{max-width:var(--wrap);margin:0 auto;padding:0 28px;display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:36px}
.f-brand p{color:var(--muted);margin:14px 0 18px;max-width:340px;font-size:15px}
.f-col h4{font:600 14px var(--font);text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:14px}
.f-col a{display:block;color:var(--text2);text-decoration:none;margin-bottom:9px;font-size:15px}.f-col a:hover{color:#fff}
.socials{display:flex;gap:10px;flex-wrap:wrap}
.socials a{width:40px;height:40px;border-radius:12px;border:1px solid var(--line2);display:grid;place-items:center;color:var(--text2);transition:.18s}
.socials a:hover{background:var(--grad);color:#0b0a18;border-color:transparent;transform:translateY(-2px)}
.f-bottom{max-width:var(--wrap);margin:34px auto 0;padding:22px 28px 0;border-top:1px solid var(--line);color:var(--muted);font-size:14px}
.wa-float{position:fixed;right:22px;bottom:22px;z-index:90;display:flex;align-items:center;gap:10px;background:var(--wa);color:#fff;text-decoration:none;border-radius:99px;padding:14px;box-shadow:0 10px 30px rgba(34,180,85,.45);font-weight:600;font-size:14px;transition:.25s}
.wa-float-text{max-width:0;overflow:hidden;white-space:nowrap;transition:max-width .3s}
.wa-float:hover{padding-right:22px}.wa-float:hover .wa-float-text{max-width:280px}

/* ===== Autenticación ===== */
.auth{min-height:100vh;display:grid;grid-template-columns:1fr 1fr}
.auth-art{position:relative;overflow:hidden;display:flex;align-items:flex-end;padding:56px;background:radial-gradient(700px 500px at 20% 10%,rgba(172,171,255,.3),transparent 60%),radial-gradient(600px 600px at 90% 90%,rgba(83,56,138,.7),transparent 60%),#0a0814}
.auth-art.has-img{background-size:cover;background-position:center}
.auth-art.has-img::before{content:'';position:absolute;inset:0;background:linear-gradient(0deg,rgba(7,7,11,.92),rgba(7,7,11,.25) 70%)}
.auth-art>div{position:relative;max-width:460px}
.auth-art h2{font-size:clamp(30px,3.4vw,44px)}.auth-art p{color:var(--text2);font-size:17px}
.auth-art ul{list-style:none;padding:0;margin:22px 0 0;display:grid;gap:10px;color:var(--text2)}.auth-art li{display:flex;gap:10px}.auth-art li svg{color:var(--lilac);flex:0 0 auto;margin-top:3px}
.auth-form{display:grid;place-items:center;padding:calc(var(--nav) + 30px) 28px 40px}
.auth-card{width:100%;max-width:520px}
.auth-card h1{font-size:34px;margin-bottom:8px}.auth-card .sub{color:var(--text2);margin:0 0 26px}
.auth-alt{text-align:center;margin-top:20px;color:var(--text2);font-size:15px}.auth-alt a{font-weight:600;text-decoration:none}
.card{background:var(--card);border:1px solid var(--line);border-radius:20px}
.err-list{background:rgba(255,123,123,.09);border:1px solid rgba(255,123,123,.35);color:#ffb0b0;border-radius:12px;padding:12px 18px;margin-bottom:20px;font-size:14.5px}.err-list ul{margin:0;padding-left:18px}
.field{margin-bottom:18px}.field label,.label{display:block;font-weight:600;font-size:14px;margin-bottom:7px;color:var(--text2)}
.field .hint{font-size:13px;color:var(--muted);margin-top:5px}
input[type=text],input[type=email],input[type=password],input[type=url],input[type=tel],input[type=search],select,textarea{width:100%;font:inherit;font-size:15.5px;color:var(--text);background:rgba(255,255,255,.05);border:1px solid var(--line2);border-radius:12px;padding:13px 15px;outline:0;transition:.15s}
select option{background:#14141e}
input::placeholder,textarea::placeholder{color:var(--muted)}
input:focus,select:focus,textarea:focus{border-color:var(--lilac);box-shadow:0 0 0 3px rgba(172,171,255,.22);background:rgba(255,255,255,.07)}
textarea{min-height:120px;resize:vertical}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.phone{display:flex;gap:8px}.phone .dial{flex:0 0 80px;text-align:center;font-weight:600}
.chips{display:flex;flex-wrap:wrap;gap:9px}.chip{position:relative}.chip input{position:absolute;opacity:0;inset:0;cursor:pointer}
.chip span{display:inline-block;padding:9px 16px;border:1px solid var(--line2);border-radius:99px;font-size:14px;font-weight:500;color:var(--text2);background:rgba(255,255,255,.04);transition:.15s}
.chip input:checked+span{background:var(--grad);border-color:transparent;color:#0b0a18;font-weight:600}
.chip input:focus-visible+span{box-shadow:0 0 0 3px rgba(172,171,255,.4)}

/* ===== Catálogo ===== */
.filters{display:flex;flex-wrap:wrap;gap:10px;margin:8px 0 8px}
.filter{padding:10px 18px;border-radius:99px;border:1px solid var(--line2);color:var(--text2);text-decoration:none;font-weight:500;font-size:14.5px;background:rgba(255,255,255,.03);transition:.15s}
.filter:hover{background:rgba(255,255,255,.1);color:#fff}.filter.on{background:#fff;color:#0b0a18;border-color:#fff}
.searchbar{position:relative;max-width:420px;margin-top:20px}.searchbar svg{position:absolute;left:15px;top:50%;transform:translateY(-50%);color:var(--muted)}.searchbar input{padding-left:44px}
.grid-posters{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:28px 20px}.grid-posters .poster{flex:initial}
.empty{border:1px dashed var(--line2);border-radius:18px;padding:50px 24px;text-align:center;color:var(--muted)}

/* ===== Curso ===== */
.c-hero{position:relative;overflow:hidden;padding:calc(var(--nav) + 56px) 0 54px;background:radial-gradient(800px 420px at 85% 0,rgba(83,56,138,.55),transparent 62%),radial-gradient(700px 380px at 0 0,rgba(172,171,255,.18),transparent 62%)}
.c-hero.has-img{background-size:cover;background-position:center}
.c-hero.has-img::before{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,7,11,.96) 10%,rgba(7,7,11,.6)),linear-gradient(0deg,var(--bg),transparent 50%)}
.c-hero-in{position:relative;display:grid;grid-template-columns:1fr 280px;gap:46px;align-items:center}
.c-hero h1{font-size:clamp(34px,5vw,60px);margin-bottom:16px;letter-spacing:-.025em}
.c-hero .sum{font-size:18px;color:var(--text2);max-width:660px;white-space:pre-line}
.c-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:18px 0 26px;color:var(--text2);font-size:15px}
.c-meta b{color:#fff}.c-meta .sep{width:4px;height:4px;border-radius:50%;background:var(--muted)}
.c-poster{border-radius:20px;overflow:hidden;border:1px solid var(--line2);box-shadow:0 30px 70px rgba(0,0,0,.6);aspect-ratio:3/4}
.c-poster img{width:100%;height:100%;object-fit:cover}
.c-progress{display:flex;align-items:center;gap:12px;margin-top:22px;max-width:420px;color:var(--muted);font-size:14px}
.bar{flex:1;height:6px;border-radius:99px;background:rgba(255,255,255,.12);overflow:hidden}.bar span{display:block;height:100%;background:var(--grad);border-radius:99px}
.eps{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:26px 20px}
.ep{display:block;text-decoration:none;color:var(--text)}
.ep-thumb{position:relative;aspect-ratio:16/9;border-radius:14px;overflow:hidden;border:1px solid var(--line);background:linear-gradient(135deg,#251a4a,#120d26);transition:.25s}
.ep-thumb img{width:100%;height:100%;object-fit:cover;transition:.5s}
.ep:hover .ep-thumb{border-color:rgba(172,171,255,.6);box-shadow:0 16px 40px rgba(83,56,138,.4)}.ep:hover .ep-thumb img{transform:scale(1.06)}
.ep-thumb .num{position:absolute;left:12px;top:10px;font:700 14px var(--head);background:rgba(7,7,11,.75);border:1px solid var(--line2);border-radius:8px;padding:2px 9px}
.ep-thumb .dur{position:absolute;right:10px;bottom:10px;font:500 12px var(--mono);background:rgba(7,7,11,.85);border-radius:6px;padding:2px 7px}
.ep-thumb .play{position:absolute;inset:0;display:grid;place-items:center;opacity:0;transition:.2s;background:rgba(7,7,11,.35)}
.ep:hover .play{opacity:1}.ep-thumb .play span{width:54px;height:54px;border-radius:50%;background:rgba(255,255,255,.95);color:#0b0a18;display:grid;place-items:center}
.ep-thumb .done-b{position:absolute;right:10px;top:10px;width:26px;height:26px;border-radius:50%;background:var(--ok);color:#06241a;display:grid;place-items:center}
.ep-lock .ep-thumb{border-color:rgba(246,196,83,.4)}
.ep-lock .ep-thumb::after{content:'';position:absolute;inset:0;background:linear-gradient(0deg,rgba(20,13,0,.7),rgba(20,13,0,.15))}
.ep-lock .lockico{position:absolute;inset:0;z-index:2;display:grid;place-items:center}
.ep-lock .lockico span{width:54px;height:54px;border-radius:50%;background:linear-gradient(135deg,#ffe08a,#e39b1c);color:#2a1c00;display:grid;place-items:center;box-shadow:0 8px 24px rgba(246,196,83,.4)}
.ep-lock .tagp{position:absolute;left:12px;top:10px;z-index:3;font:700 11px var(--font);letter-spacing:.06em;background:linear-gradient(135deg,#ffe08a,#e39b1c);color:#2a1c00;border-radius:99px;padding:4px 10px}
.ep h3{font:600 17px/1.3 var(--head);margin:13px 2px 4px}.ep small{color:var(--muted);margin-left:2px}
.ep-lock small{color:var(--gold)}

/* Opiniones del curso */
.rev-grid{display:grid;grid-template-columns:300px 1fr;gap:40px;align-items:start}
.rev-sum{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:26px;position:sticky;top:calc(var(--nav) + 20px)}
.rev-sum .big{font:700 58px/1 var(--head)}.rev-sum .bars{margin-top:18px;display:grid;gap:8px}
.rev-sum .bars div{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted)}.rev-sum .bars .bar{height:7px}
.rev-sum .bars .bar span{background:var(--gold)}
.rev-list{display:grid;gap:16px}
.rev-list .review{flex:initial}
.rev-form{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:24px;margin-bottom:22px}
.rev-form h3{font-size:20px}
.star-input{display:inline-flex;flex-direction:row-reverse;gap:4px;margin-bottom:12px}
.star-input input{position:absolute;opacity:0;pointer-events:none}
.star-input label{width:34px;height:34px;cursor:pointer;background:rgba(255,255,255,.22);-webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpolygon points='12 2 15.09 8.26 22 9.27 17 14.14 18.18 21.02 12 17.77 5.82 21.02 7 14.14 2 9.27 8.91 8.26 12 2'/%3E%3C/svg%3E") center/contain no-repeat;mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpolygon points='12 2 15.09 8.26 22 9.27 17 14.14 18.18 21.02 12 17.77 5.82 21.02 7 14.14 2 9.27 8.91 8.26 12 2'/%3E%3C/svg%3E") center/contain no-repeat;transition:.12s}
.star-input input:checked~label,.star-input label:hover,.star-input label:hover~label{background:var(--gold)}
.pending-note{background:rgba(172,171,255,.1);border:1px solid rgba(172,171,255,.3);color:var(--text2);border-radius:12px;padding:12px 16px;font-size:14.5px;margin-bottom:14px}

/* ===== Lector de temas (sidebar + contenido) ===== */
.shell{display:grid;grid-template-columns:var(--sbw) minmax(0,1fr);max-width:1500px;margin:0 auto;padding-top:var(--nav);min-height:100vh}
.sidebar{position:sticky;top:var(--nav);align-self:start;height:calc(100vh - var(--nav));overflow-y:auto;padding:28px 18px 40px 26px;border-right:1px solid var(--line);background:rgba(255,255,255,.015)}
.sidebar::-webkit-scrollbar{width:6px}.sidebar::-webkit-scrollbar-thumb{background:rgba(255,255,255,.12);border-radius:6px}
.sb-block{margin-bottom:26px}
.sb-back{display:inline-flex;align-items:center;gap:4px;color:var(--muted);text-decoration:none;font-size:13.5px;margin-bottom:12px}.sb-back svg{transform:rotate(180deg)}.sb-back:hover{color:var(--lilac)}
.sb-course{font:600 18px/1.3 var(--head);margin-bottom:12px}
.sb-label{font:600 15px var(--head);color:var(--text);margin:0 0 10px 6px}.sb-label .br{color:var(--muted);font-weight:400}
.sb-list{list-style:none;margin:0 0 0 12px;padding:0 0 0 12px;border-left:1px solid var(--line2)}.sb-list li{margin:2px 0}
.sb-item{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:10px;color:var(--text2);text-decoration:none;font-size:14.5px;font-weight:500;line-height:1.35;transition:.12s}
.sb-item:hover{background:rgba(255,255,255,.06);color:#fff}
.sb-item.active{background:rgba(172,171,255,.16);color:#fff;font-weight:600}
.sb-check{flex:0 0 22px;height:22px;border-radius:50%;border:1.5px solid rgba(255,255,255,.25);display:grid;place-items:center;font-size:11px;font-weight:600;color:var(--muted)}
.sb-item.active .sb-check{border-color:var(--lilac);color:var(--lilac)}
.sb-item.done .sb-check{background:var(--ok);border-color:var(--ok);color:#06241a}
.sb-premium{color:var(--gold)}.sb-premium .sb-check{border-color:var(--gold);color:var(--gold)}.sb-premium:hover{background:rgba(246,196,83,.1);color:#ffe08a}
.sb-tag{margin-left:auto;font:700 10px var(--font);letter-spacing:.06em;text-transform:uppercase;background:rgba(246,196,83,.16);color:var(--gold);padding:3px 7px;border-radius:99px}
.sb-progress{height:6px;border-radius:99px;background:rgba(255,255,255,.12);overflow:hidden}.sb-progress span{display:block;height:100%;background:var(--grad);border-radius:99px}
.sb-meta{font-size:13px;color:var(--muted);margin-top:8px}
.sb-wa{display:flex;gap:11px;align-items:center;padding:13px 15px;border-radius:14px;background:rgba(34,180,85,.12);border:1px solid rgba(34,180,85,.3);color:#6ee59a;text-decoration:none}
.sb-wa span{display:flex;flex-direction:column;line-height:1.25}.sb-wa small{color:#8fcfa8;font-size:12.5px}
.content{padding:42px clamp(24px,5vw,72px) 90px;min-width:0}
.article{max-width:840px}
.article h1.title{font-size:clamp(30px,4vw,44px);padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:28px;letter-spacing:-.025em}
.video{position:relative;aspect-ratio:16/9;border-radius:16px;overflow:hidden;background:#000;margin-bottom:32px;border:1px solid var(--line2);box-shadow:0 24px 60px rgba(0,0,0,.55)}
.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.sb-toggle{display:none}

.prose{font-size:16.5px;color:var(--text2)}
.prose>*:first-child{margin-top:0}
.prose p{margin:0 0 1.15em}
.prose h2{font-size:27px;margin:1.7em 0 .6em;padding-bottom:.35em;border-bottom:1px solid var(--line);color:#fff}
.prose h3{font-size:21px;margin:1.4em 0 .5em;color:#fff}
.prose ul,.prose ol{margin:0 0 1.15em;padding-left:1.4em}.prose li{margin:.35em 0}
.prose strong{color:#fff}
.prose blockquote{margin:0 0 1.15em;padding:.5em 1.1em;border-left:3px solid var(--lilac);background:rgba(172,171,255,.08);border-radius:0 10px 10px 0}
.prose code{font:500 .86em var(--mono);background:rgba(172,171,255,.14);color:var(--lilac);padding:2px 7px;border-radius:6px}
.prose a{font-weight:600;text-underline-offset:3px}
.callout{display:flex;flex-direction:column;gap:2px;margin:0 0 1.4em;padding:15px 20px;border-radius:14px;border:1px solid;border-left-width:4px}
.callout .prose{font-size:15.5px}.callout .prose p:last-child{margin:0}
.callout-title{font:600 12.5px var(--mono);text-transform:uppercase;letter-spacing:.07em}
.callout-info{background:rgba(172,171,255,.08);border-color:rgba(172,171,255,.25);border-left-color:var(--lilac)}.callout-info .callout-title{color:var(--lilac)}
.callout-tip{background:rgba(95,214,160,.08);border-color:rgba(95,214,160,.25);border-left-color:var(--ok)}.callout-tip .callout-title{color:var(--ok)}
.callout-warning{background:rgba(246,196,83,.08);border-color:rgba(246,196,83,.28);border-left-color:var(--gold)}.callout-warning .callout-title{color:var(--gold)}
.figure{margin:0 0 1.5em}.figure img{border-radius:14px;border:1px solid var(--line)}.figure figcaption{font-size:13.5px;color:var(--muted);margin-top:8px;text-align:center}

/* Celda de código (oscura) */
.code-card{position:relative;margin:0 0 1.5em;background:#0d0d16;border:1px solid var(--line2);border-radius:14px;box-shadow:0 10px 34px rgba(0,0,0,.4);overflow:hidden}
.code-head{font:500 12.5px var(--mono);color:var(--muted);padding:10px 18px;background:rgba(255,255,255,.03);border-bottom:1px solid var(--line)}
.code-card pre{margin:0;padding:20px 22px;overflow-x:auto;font:400 14.5px/1.7 var(--mono);color:#e4e2f6;tab-size:4}
.code-card pre code{font:inherit;background:none;padding:0;color:inherit;display:block}
.code-copy{position:absolute;top:9px;right:11px;z-index:2;font:500 12px var(--font);color:var(--lilac);background:rgba(172,171,255,.1);border:1px solid rgba(172,171,255,.3);border-radius:8px;padding:5px 11px;cursor:pointer;opacity:0;transition:.15s}
.code-card:hover .code-copy,.code-copy:focus{opacity:1}.code-head+.code-copy{top:46px}.code-copy.ok{color:var(--ok);border-color:var(--ok);opacity:1}
.hljs-keyword,.hljs-built_in,.hljs-literal,.hljs-selector-tag,.hljs-name,.hljs-type,.hljs-section{color:#8fb4ff}
.hljs-string,.hljs-attr,.hljs-regexp,.hljs-template-variable,.hljs-addition,.hljs-symbol{color:#8ee09a}
.hljs-number,.hljs-meta,.hljs-bullet{color:#ffb86b}
.hljs-comment,.hljs-quote,.hljs-doctag{color:#7d7aa0;font-style:italic}
.hljs-title,.hljs-title.function_,.hljs-title.class_{color:#d3a8ff}
.hljs-variable,.hljs-params,.hljs-property,.hljs-subst{color:#e4e2f6}.hljs-deletion{color:var(--err)}

.pager{display:flex;justify-content:space-between;gap:14px;margin-top:48px;padding-top:28px;border-top:1px solid var(--line);flex-wrap:wrap}
.pager a,.pager button{font:600 15px var(--font);border:1px solid var(--line2);border-radius:12px;padding:13px 20px;text-decoration:none;color:var(--text);background:rgba(255,255,255,.04);cursor:pointer;transition:.15s}
.pager a:hover{background:rgba(255,255,255,.1)}
.pager .next{margin-left:auto;background:var(--grad);color:#0b0a18;border-color:transparent}.pager .next:hover{filter:brightness(1.08)}
.done-badge{display:inline-flex;align-items:center;gap:7px;color:var(--ok);font-weight:600;font-size:14px;margin-top:20px}

/* ===== Responsive ===== */
@media (max-width:1080px){
  .shell{grid-template-columns:1fr}
  .sidebar{position:fixed;left:0;top:var(--nav);bottom:0;height:auto;width:min(88vw,330px);z-index:80;transform:translateX(-102%);transition:.25s;background:#0d0d15;box-shadow:14px 0 50px rgba(0,0,0,.6)}
  body.sb-open .sidebar{transform:none}
  body.sb-open::after{content:'';position:fixed;inset:var(--nav) 0 0 0;background:rgba(0,0,0,.6);z-index:70}
  .sb-toggle{display:inline-flex;align-items:center;gap:8px;margin-bottom:18px;padding:9px 16px;border-radius:99px;background:rgba(255,255,255,.07);border:1px solid var(--line2);color:var(--text);font:600 14px var(--font);cursor:pointer}
  .band,.c-hero-in,.rev-grid{grid-template-columns:1fr}
  .c-poster{display:none}.rev-sum{position:static}
  .footer-in{grid-template-columns:1fr 1fr}
  .auth{grid-template-columns:1fr}.auth-art{display:none}
  .hero-art{opacity:.35;max-width:80%}
}
@media (max-width:860px){
  .nav-burger{display:inline-flex}
  .nav-links{position:fixed;top:var(--nav);left:0;right:0;background:rgba(7,7,11,.98);border-bottom:1px solid var(--line);padding:14px 20px 22px;flex-direction:column;align-items:stretch;gap:4px;transform:translateY(-130%);transition:.25s;z-index:-1}
  body.nav-open .nav-links{transform:none}
  .nav-wa-m{display:inline-flex;align-items:center;gap:8px}
  .nav-wa span,.nav-login,.uname{display:none}.nav-wa{padding:10px}
  .dd-menu{position:static;box-shadow:none;border:0;background:rgba(255,255,255,.04);margin-top:4px}
  .nav-right .dd-menu{position:absolute}
  .nav-in{gap:10px;padding:0 16px}.brand span{font-size:17px}
}
@media (max-width:640px){
  .wrap{padding:0 18px}
  .row2{grid-template-columns:1fr}
  .poster{flex-basis:170px}
  .review{flex-basis:290px}
  .footer-in{grid-template-columns:1fr}
  .content{padding:28px 18px 70px}
  .hero{padding-top:calc(var(--nav) + 40px)}
  .wa-float{right:14px;bottom:14px}
  .section{padding:44px 0}
}

/* Visual decorativo del hero (cuando no hay imagen subida) */
.hero-visual{position:absolute;right:max(28px,calc((100vw - 1240px)/2));top:50%;transform:translateY(-46%);width:min(470px,40vw);height:420px;z-index:1}
.hv{position:absolute;background:rgba(20,18,34,.78);border:1px solid var(--line2);border-radius:18px;backdrop-filter:blur(10px);box-shadow:0 30px 70px rgba(0,0,0,.55)}
.hv-code{top:0;left:0;right:0;padding:16px 20px 18px}
.hv-code pre{margin:12px 0 0;font:400 13.5px/1.75 var(--mono);color:#e4e2f6;white-space:pre-wrap}
.hv-code .k{color:#8fb4ff}.hv-code .s{color:#8ee09a}.hv-code .c{color:#7d7aa0;font-style:italic}
.hv-dots{display:flex;gap:6px}.hv-dots i{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.18)}.hv-dots i:first-child{background:#ff6b6b}.hv-dots i:nth-child(2){background:#f6c453}.hv-dots i:nth-child(3){background:#5fd6a0}
.hv-prog{left:-26px;bottom:34px;padding:16px 20px;display:flex;gap:16px;align-items:center;width:310px}
.hv-prog b{display:block;font:600 15px var(--head)}.hv-prog span{color:var(--muted);font-size:13px}
.hv-bars{display:flex;align-items:flex-end;gap:5px;height:44px;width:42px}.hv-bars i{flex:1;border-radius:99px;background:var(--grad)}
.hv-meter{height:6px;border-radius:99px;background:rgba(255,255,255,.12);margin-top:9px;overflow:hidden}.hv-meter span{display:block;width:68%;height:100%;background:var(--grad);border-radius:99px}
.hv-lock{right:6px;bottom:-6px;padding:14px 18px;display:flex;gap:12px;align-items:center;border-color:rgba(246,196,83,.4)}
.hv-lock>span{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,#ffe08a,#e39b1c);color:#2a1c00;display:grid;place-items:center}
.hv-lock b{display:block;font:600 14.5px var(--head)}.hv-lock small{color:var(--muted);font-size:12.5px}
@media (max-width:1080px){.hero-visual{display:none}}

/* Ajustes móviles finos */
.section-head{flex-wrap:wrap}
.brand span{white-space:nowrap}
@media (max-width:640px){
  .row-arrows{display:none}
  .nav-right{gap:8px}
  .nav-in{padding:0 14px;gap:8px}
  .nav .btn-sm{padding:9px 12px}
}
@media (max-width:520px){
  .brand span{display:none}
}