.premium-intro-card{position:relative;isolation:isolate;display:grid;grid-template-columns:minmax(260px,.72fr) minmax(460px,1.28fr);gap:28px;align-items:center;margin:0 0 28px;padding:28px;overflow:hidden;border:1px solid rgba(92,204,255,.24);border-radius:28px;background:linear-gradient(135deg,#06142d 0%,#0b2450 58%,#183875 100%);color:#fff;box-shadow:0 30px 75px rgba(7,25,58,.24)}
.premium-intro-card::before,.premium-intro-card::after{content:"";position:absolute;z-index:-1;border-radius:50%;filter:blur(5px)}.premium-intro-card::before{width:360px;height:360px;right:-150px;top:-210px;background:radial-gradient(circle,rgba(55,218,255,.42),transparent 68%)}.premium-intro-card::after{width:300px;height:300px;left:-160px;bottom:-210px;background:radial-gradient(circle,rgba(184,101,255,.32),transparent 68%)}
.premium-intro-kicker{display:flex;align-items:center;gap:8px;color:#5bddff;font-size:12px;font-weight:950;letter-spacing:.15em;text-transform:uppercase}.premium-intro-kicker i{width:7px;height:7px;border-radius:50%;background:#64efbd;box-shadow:0 0 0 6px rgba(100,239,189,.12)}
.premium-intro-copy h2{max-width:540px;margin:16px 0 13px;color:#fff;font-family:Charter,"Iowan Old Style",Georgia,serif;font-size:clamp(34px,4vw,54px);font-weight:600;letter-spacing:-.045em;line-height:1.02;text-shadow:0 8px 28px rgba(0,0,0,.36)}.premium-intro-copy h2 em{color:#63dfff;font-style:normal}.premium-intro-copy p{max-width:510px;margin:0;color:#bed2e7;font-size:14px;line-height:1.65}
.premium-intro-points{display:flex;gap:8px;flex-wrap:wrap;margin:20px 0}.premium-intro-points span{padding:8px 10px;border:1px solid rgba(255,255,255,.14);border-radius:999px;background:rgba(255,255,255,.07);color:#dceafb;font-size:12px;font-weight:800;backdrop-filter:blur(10px)}
.premium-intro-actions{display:flex;gap:9px;flex-wrap:wrap}.premium-intro-actions a{display:inline-flex;align-items:center;justify-content:center;min-height:43px;padding:0 15px;border-radius:11px;font-size:12px;font-weight:900;text-decoration:none}.premium-intro-start{gap:16px;background:linear-gradient(135deg,#55dcff,#65efbb);color:#07152d;box-shadow:0 13px 30px rgba(78,218,232,.23)}.premium-intro-download{border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.07);color:#fff}
.premium-intro-player{position:relative;padding:8px;border:1px solid rgba(112,217,255,.34);border-radius:21px;background:rgba(2,9,24,.78);box-shadow:0 25px 58px rgba(0,0,0,.4),0 0 45px rgba(67,183,255,.13)}.premium-intro-player::before{content:"PROFESORES EXPERTOS · RECORRIDO DE INICIO";display:block;padding:4px 6px 10px;color:#8fb4d3;font-size:12px;font-weight:900;letter-spacing:.13em}.premium-intro-player video{display:block;width:100%;aspect-ratio:16/9;border-radius:14px;background:#020815;object-fit:cover}
@media(max-width:1050px){.premium-intro-card{grid-template-columns:1fr}.premium-intro-copy h2{max-width:720px}.premium-intro-copy p{max-width:700px}}
@media(max-width:640px){.premium-intro-card{margin:0 0 20px;padding:18px;border-radius:20px}.premium-intro-copy h2{font-size:36px}.premium-intro-actions a{flex:1}.premium-intro-player{padding:6px}}
@media(prefers-reduced-motion:reduce){.premium-intro-card{scroll-behavior:auto}}