/* ==========================================================
   ÁREA DEL ALUMNO
   ========================================================== */
/* ---------- Login ---------- */
.login-wrap{position:relative;z-index:2;min-height:100vh;display:grid;grid-template-columns:1.1fr .9fr}
.login-art{position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:center;align-items:flex-start;padding:60px 8%;border-right:1px solid var(--line);background:radial-gradient(ellipse at 30% 30%,rgba(207,230,255,.08),transparent 60%)}
.login-art .hero-diamond{width:min(380px,70%);margin-bottom:40px}
.login-art h2{font-size:clamp(1.8rem,3.2vw,2.8rem);text-transform:uppercase;max-width:560px}
.login-art p{color:var(--muted);margin-top:14px}
.login-box{display:flex;flex-direction:column;justify-content:center;padding:50px clamp(24px,6vw,80px);max-width:560px;width:100%;margin:auto}
.login-box .back{color:var(--muted);font-size:.85rem;margin-bottom:30px}
.login-box .back:hover{color:#fff}
.login-logo{width:220px;margin-bottom:26px}
.login-box h1{font-size:2rem;text-transform:uppercase}
.login-box .sub{color:var(--muted);margin:8px 0 28px;font-size:.95rem}
.row-between{display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:.85rem;margin:6px 0 22px;color:var(--muted)}
.row-between a:hover{color:#fff}
.chk{display:flex;align-items:center;gap:8px;cursor:pointer}
.chk input{accent-color:#fff}
.err{color:#ff8080;font-size:.85rem;margin-top:12px;min-height:1em}
.demo{margin-top:26px;padding:18px;border-radius:16px;border:1px dashed var(--line-2);display:grid;gap:6px;font-size:.85rem;color:var(--muted)}
.demo b{color:#fff}
.demo div{display:flex;gap:10px;margin-top:8px;flex-wrap:wrap}
.demo .btn{padding:10px 16px;font-size:.72rem;flex:1}
.nofound{margin-top:24px;color:var(--muted);font-size:.9rem;text-align:center}
.nofound a{color:#fff;font-weight:600;text-decoration:underline}
@media (max-width:900px){.login-wrap{grid-template-columns:1fr}.login-art{display:none}}

/* ---------- App ---------- */
body.app{display:grid;grid-template-columns:260px 1fr;min-height:100vh;background:#07080b}
.side{position:sticky;top:0;height:100vh;display:flex;flex-direction:column;padding:26px 18px;border-right:1px solid var(--line);background:#090a0e;z-index:40}
.side-logo img{width:190px;margin:0 auto 34px}
.side nav{display:grid;gap:4px}
.side nav a{display:flex;align-items:center;gap:14px;padding:12px 14px;border-radius:12px;color:var(--muted);font-weight:500;font-size:.93rem;transition:.2s}
.side nav a span{width:22px;text-align:center;font-size:.85rem}
.side nav a:hover{background:rgba(255,255,255,.04);color:#fff}
.side nav a.active{background:var(--chrome);color:#0a0b0e;font-weight:700}
.side-plan{margin-top:auto;padding:18px;border-radius:16px;border:1px solid var(--line-2);background:linear-gradient(180deg,rgba(255,255,255,.05),transparent);font-size:.85rem;color:var(--muted)}
.side-plan b{display:block;color:#fff;font-family:var(--font-d);text-transform:uppercase;margin-bottom:6px}
.side-plan .btn{margin-top:12px;padding:10px 12px;font-size:.7rem;width:100%}
.logout{margin-top:14px;text-align:center;color:var(--dim);font-size:.85rem}
.logout:hover{color:#fff}
.app-main{min-width:0;position:relative;z-index:2}
.app-top{position:sticky;top:0;z-index:30;display:flex;align-items:center;gap:18px;padding:16px 34px;background:rgba(7,8,11,.8);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.app-top .burger{display:none}
.search{flex:1;max-width:460px}
.search input{width:100%;padding:12px 18px;border-radius:999px;border:1px solid var(--line-2);background:#0d0f14;color:#fff;font:inherit;font-size:.9rem;outline:none}
.search input:focus{border-color:#fff}
.user{margin-left:auto;display:flex;align-items:center;gap:12px;text-align:right}
.user b{display:block;font-size:.92rem}
.user small{color:var(--muted);font-size:.78rem}
.av{width:44px;height:44px;border-radius:50%;background:var(--chrome);display:grid;place-items:center;color:#0a0b0e;font-weight:800}
.view{padding:34px;max-width:1300px}
@media (max-width:960px){
  body.app{grid-template-columns:1fr}
  .side{position:fixed;left:0;top:0;width:270px;transform:translateX(-100%);transition:transform .3s}
  body.side-open .side{transform:none;box-shadow:30px 0 80px rgba(0,0,0,.7)}
  .app-top .burger{display:flex}
  .app-top{padding:14px 18px}
  .user div:first-child{display:none}
  .view{padding:22px 16px}
}

/* ---------- Vistas ---------- */
.welcome{position:relative;overflow:hidden;display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center;padding:38px;border-radius:26px;border:1px solid var(--line-2);background:radial-gradient(ellipse at 90% 0%,rgba(207,230,255,.14),transparent 55%),linear-gradient(180deg,#12151c,#0b0d12)}
.welcome h1{font-size:clamp(1.6rem,3vw,2.4rem);text-transform:uppercase;margin:10px 0}
.welcome p{color:var(--muted);max-width:520px}
.welcome .btn{margin-top:22px}
.ring-prog{position:relative;width:160px;height:160px}
.ring-prog svg{transform:rotate(-90deg)}
.ring-prog .lbl{position:absolute;inset:0;display:grid;place-items:center;text-align:center}
.ring-prog b{font-family:var(--font-d);font-size:2.2rem;display:block;line-height:1}
.ring-prog small{color:var(--muted);font-size:.75rem}
@media (max-width:700px){.welcome{grid-template-columns:1fr;padding:26px}.ring-prog{margin:auto}}
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:22px 0}
.kpi{padding:22px;border-radius:18px;border:1px solid var(--line);background:rgba(255,255,255,.02)}
.kpi small{color:var(--muted);font-size:.8rem}
.kpi b{display:block;font-family:var(--font-d);font-size:1.8rem;margin-top:4px}
@media (max-width:900px){.kpis{grid-template-columns:repeat(2,1fr)}}
.v-title{display:flex;justify-content:space-between;align-items:end;margin:38px 0 18px;gap:10px}
.v-title h2{font-size:1.4rem;text-transform:uppercase}
.v-title a{color:var(--muted);font-size:.85rem}
.v-title a:hover{color:#fff}
.mods{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px}
.mod{position:relative;border-radius:20px;border:1px solid var(--line);background:#0d0f14;overflow:hidden;cursor:pointer;transition:transform .3s,border-color .3s;text-align:left;display:block;width:100%}
.mod:hover{transform:translateY(-5px);border-color:var(--line-2)}
.mod .cover{aspect-ratio:16/10;position:relative;display:grid;place-items:center;background:radial-gradient(circle at 50% 40%,#252a34,#0b0d12 75%);overflow:hidden}
.mod .cover .num{position:absolute;left:18px;top:12px;font-family:var(--font-d);font-weight:900;font-size:3.4rem;color:transparent;-webkit-text-stroke:1px rgba(255,255,255,.35)}
.mod .cover img{width:42%;opacity:.85;transition:transform .5s}
.mod:hover .cover img{transform:scale(1.08) rotate(-3deg)}
.mod .body{padding:18px}
.mod h3{font-size:1rem;text-transform:uppercase;margin-bottom:6px}
.mod small{color:var(--muted);font-size:.8rem}
.bar{height:6px;border-radius:9px;background:#1c2029;overflow:hidden;margin-top:14px}
.bar i{display:block;height:100%;background:var(--chrome-h);border-radius:9px;transition:width .6s}
.mod.locked .cover::after{content:"";position:absolute;inset:0;background:rgba(6,7,10,.65);backdrop-filter:blur(2px)}
.mod .lock{position:absolute;z-index:2;inset:0;display:grid;place-items:center;text-align:center;font-size:.8rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase}
.mod .lock span{padding:8px 14px;border-radius:999px;background:var(--chrome);color:#0a0b0e}

/* Reproductor */
.player{display:grid;grid-template-columns:1fr 340px;gap:24px;align-items:start}
.video{aspect-ratio:16/9;border-radius:20px;overflow:hidden;border:1px solid var(--line-2);background:radial-gradient(circle at 50% 45%,#232833,#07080b 75%);display:grid;place-items:center;position:relative}
.video img{width:30%;opacity:.8}
.video .pbtn{position:absolute;width:84px;height:84px;border-radius:50%;background:rgba(255,255,255,.95);display:grid;place-items:center;color:#000;box-shadow:0 0 0 12px rgba(255,255,255,.08);transition:.3s}
.video .pbtn:hover{transform:scale(1.08)}
.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.lesson-info{margin-top:22px}
.lesson-info h1{font-size:1.6rem;text-transform:uppercase;margin:8px 0}
.lesson-info p{color:var(--muted)}
.lesson-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}
.lesson-actions .btn{padding:13px 22px;font-size:.78rem}
.lessons{border-radius:20px;border:1px solid var(--line);background:#0b0d12;overflow:hidden;position:sticky;top:96px}
.lessons header{padding:18px 20px;border-bottom:1px solid var(--line)}
.lessons header b{font-family:var(--font-d);text-transform:uppercase}
.lessons header small{display:block;color:var(--muted);font-size:.8rem;margin-top:4px}
.lessons ol{list-style:none;max-height:60vh;overflow:auto}
.lessons li button{width:100%;display:flex;align-items:center;gap:12px;padding:14px 20px;text-align:left;border-bottom:1px solid var(--line);font-size:.88rem;color:var(--silver-2);transition:.2s}
.lessons li button:hover{background:rgba(255,255,255,.03)}
.lessons li.cur button{background:rgba(255,255,255,.07);color:#fff}
.lessons .st{width:26px;height:26px;flex:none;border-radius:50%;border:1px solid var(--line-2);display:grid;place-items:center;font-size:.7rem}
.lessons li.done .st{background:var(--chrome);color:#0a0b0e;border:0;font-weight:900}
.lessons .dur{margin-left:auto;color:var(--dim);font-size:.75rem}
@media (max-width:1000px){.player{grid-template-columns:1fr}.lessons{position:static}}

/* Listas genéricas */
.list{display:grid;gap:12px}
.row{display:flex;align-items:center;gap:16px;padding:18px 20px;border-radius:16px;border:1px solid var(--line);background:rgba(255,255,255,.02)}
.row .ic{width:46px;height:46px;flex:none;border-radius:12px;background:var(--chrome);color:#0a0b0e;display:grid;place-items:center;font-weight:900}
.row b{display:block}
.row small{color:var(--muted);font-size:.83rem}
.row .btn{margin-left:auto;padding:10px 16px;font-size:.72rem}
.row.locked{opacity:.55}
.live-dot{display:inline-flex;align-items:center;gap:8px;font-size:.75rem;font-weight:700;color:#ff6b6b;letter-spacing:.1em;text-transform:uppercase}
.live-dot::before{content:"";width:8px;height:8px;border-radius:50%;background:#ff4d4d;animation:pulse2 1.4s infinite}
@keyframes pulse2{50%{opacity:.3}}
.upsell{margin-top:28px;padding:30px;border-radius:22px;border:1px solid var(--line-2);display:flex;gap:24px;align-items:center;justify-content:space-between;flex-wrap:wrap;background:linear-gradient(120deg,rgba(207,230,255,.1),rgba(255,255,255,.01))}
.upsell h3{font-size:1.3rem;text-transform:uppercase}
.upsell p{color:var(--muted);font-size:.92rem}
.cert{aspect-ratio:1.414;max-width:640px;border-radius:18px;padding:6%;background:linear-gradient(135deg,#f4f6f9,#c9ced6);color:#0a0b0e;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;position:relative;box-shadow:var(--shadow)}
.cert::before{content:"";position:absolute;inset:14px;border:2px solid #0a0b0e;border-radius:10px;opacity:.6}
.cert img{width:46%;margin-bottom:6%;filter:drop-shadow(0 4px 6px rgba(0,0,0,.25))}
.cert small{letter-spacing:.25em;text-transform:uppercase;font-size:.7rem;font-weight:700}
.cert h2{font-size:clamp(1.3rem,3vw,2rem);margin:8px 0}
.cert p{font-size:.85rem;max-width:80%}
.toast{position:fixed;left:50%;bottom:30px;transform:translate(-50%,120px);z-index:200;background:#fff;color:#000;padding:14px 22px;border-radius:14px;font-weight:700;font-size:.9rem;box-shadow:var(--shadow);transition:transform .4s}
.toast.show{transform:translate(-50%,0)}
.empty{color:var(--muted);padding:40px;text-align:center;border:1px dashed var(--line-2);border-radius:18px}