/* ===== Pantalla de lección (18): un solo título, controles bajo el video, póster a sangre, capítulos, retomar,
   temario con estados claros, menú «Instructor», tarjeta al completar. Va después de views.css y motion.css. ===== */

/* ---------- barra superior de la lección ---------- */
.ls-top{gap:10px;margin-bottom:12px;position:relative;z-index:20}
.ls-inst{position:relative;flex:none}
.ls-inst-b{min-height:40px;box-shadow:inset 0 0 0 1px rgba(255,194,31,.38)}
.ls-inst-b>.ic:first-child{color:var(--yellow)}
.ls-inst-b .ls-inst-chev{width:15px;height:15px;transition:transform .3s var(--e-out)}
.ls-inst-b[aria-expanded=true] .ls-inst-chev{transform:rotate(180deg)}
.ls-inst-m{position:absolute;right:0;top:calc(100% + 8px);z-index:60;width:min(300px,calc(100vw - 32px));padding:8px;border-radius:18px;background:linear-gradient(160deg,var(--panel-a),var(--panel-b));box-shadow:0 24px 60px rgba(var(--sh),calc(.5 * var(--shk))),inset 0 0 0 1px var(--line2);animation:popIn .25s var(--e-out)}
.ls-inst-m .menu-i{min-height:44px}
.ls-inst-m .menu-i .ic{width:17px;height:17px;color:var(--orange-l)}
.ls-inst-n{display:flex;gap:8px;align-items:flex-start;margin:6px 4px 2px;padding:9px 10px;border-radius:12px;font-size:12.5px;line-height:1.4;color:var(--t62);background:rgba(255,194,31,.07);box-shadow:inset 0 0 0 1px rgba(255,194,31,.2)}
.ls-inst-n .ic{flex:none;width:14px;height:14px;margin-top:2px;color:var(--yellow)}

/* ---------- reproductor: en escritorio el video y las pestañas caben sin desplazarse ---------- */
@media (min-width:901px){
  .ls-player{width:min(100%,calc((100svh - var(--top-h) - 258px) * 16 / 9));margin-inline:auto}
  .lesson:has(.ls-chap) .ls-player{width:min(100%,calc((100svh - var(--top-h) - 306px) * 16 / 9))}
  .focus-mode .ls-player{width:min(100%,calc((100svh - 200px) * 16 / 9))}
}

/* ---------- póster sin video: imagen de Cosmo del módulo a sangre completa ---------- */
.cover.cv2{display:block;padding:0}
.cv2 .cv-cosmo{position:absolute;right:7%;top:50%;translate:0 -50%;width:min(34%,320px);z-index:1}
.cv2 .cv-cosmo.has-img{inset:0;width:100%;height:100%;translate:none;aspect-ratio:auto}
.cv2 .cv-cosmo.has-img .cosmo-img{object-fit:cover;object-position:62% 40%;filter:none}
.cv2 .cv-cosmo.has-img .cosmo-badge{display:none}
.cv2:has(.cv-cosmo.has-img) :is(.cv-grid,.cv-glow,.cv-ring){display:none}
.cv-shade{position:absolute;inset:0;z-index:2;pointer-events:none;background:linear-gradient(90deg,rgba(8,5,4,.94) 0%,rgba(8,5,4,.78) 34%,rgba(8,5,4,.28) 64%,rgba(8,5,4,.05) 100%),linear-gradient(0deg,rgba(8,5,4,.7),transparent 42%)}
.cv2:not(:has(.cv-cosmo.has-img)) .cv-shade{background:linear-gradient(90deg,rgba(8,5,4,.55),transparent 60%)}
.cv2 .cv-copy{position:absolute;z-index:3;left:clamp(20px,4.4%,52px);bottom:clamp(22px,9%,64px);max-width:min(470px,54%);display:grid;gap:10px;justify-items:start;color:#F7F3EC}
.cv2 .cv-copy .mono{color:rgba(247,243,236,.72)}
.cv-h{font-size:clamp(22px,2.5vw,34px);font-weight:800;letter-spacing:-.04em;line-height:1.05;color:#F7F3EC;text-wrap:balance}
.cv-sub{font-size:14.5px;line-height:1.5;color:rgba(247,243,236,.78);max-width:40ch}
.cv-act{margin-top:6px;min-height:44px}
.cv-notify.is-on{background:rgba(247,243,236,.12);color:#F7F3EC;box-shadow:inset 0 0 0 1px rgba(247,243,236,.38);text-shadow:none}
.cv-notify.is-on .ic{color:#FFC21F}
.player.no-video .pl-ctrl{display:none}

/* ---------- marcas de capítulos y aviso «Retomaste en…» ---------- */
.pl-marks{position:absolute;left:0;right:0;height:4px;pointer-events:none}
.pl-marks i{position:absolute;top:0;width:3px;height:100%;margin-left:-1.5px;background:rgba(8,5,4,.85);border-radius:1px}
.pl-scrub:hover .pl-marks{height:6px}
.pl-tip{white-space:nowrap;max-width:260px;overflow:hidden;text-overflow:ellipsis}
.pl-resume{position:absolute;left:14px;top:14px;z-index:6;display:flex;align-items:center;gap:6px;padding:6px 6px 6px 14px;border-radius:999px;font-size:13.5px;color:#F7F3EC;background:rgba(14,10,8,.86);box-shadow:inset 0 0 0 1px rgba(247,243,236,.18),0 10px 30px rgba(0,0,0,.4);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);animation:popIn .3s var(--e-out)}
.pl-resume b{font-family:var(--mono);font-weight:500}
.pl-resume [data-act=restart]{min-height:34px;padding:0 12px;border-radius:999px;font-weight:600;color:#FFB27A;text-decoration:underline;text-underline-offset:3px}
.pl-resume [data-act=restart]:hover{background:rgba(247,243,236,.08)}
.pl-resume-x{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;color:rgba(247,243,236,.7)}
.pl-resume-x .ic{width:15px;height:15px}

/* ---------- un solo título y los controles bajo el video ---------- */
.ls-head{display:block;margin:14px 0 12px}
.ls-bar{display:flex;align-items:center;gap:12px 18px;flex-wrap:wrap}
.ls-id{flex:1 1 260px;min-width:0}
.ls-id .mono{display:block;font-size:10.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ls-head h1{font-size:clamp(19px,1.55vw,24px);letter-spacing:-.03em;line-height:1.18;margin-top:4px;text-wrap:balance}
.ls-ctl{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.ls-ctl .btn-sm{min-height:42px}
.ls-ctl .complete{padding:9px 16px 9px 12px;font-size:14px;min-height:42px}
.ls-ctl .complete .cb-ic{width:20px;height:20px}
.ls-ctl [aria-disabled=true].btn-ghost{opacity:.4;pointer-events:none}
/* completada: queda como interruptor discreto y el protagonista pasa a ser «Siguiente: …» */
.ls-ctl .complete.is-done{background:rgba(var(--tint),.06);color:var(--ivory);text-shadow:none;box-shadow:inset 0 0 0 1px rgba(255,106,19,.5)}
.ls-ctl .complete.is-done .cb-ic{background:var(--grad-btn);transform:none}
.ls-ctl .complete.is-done .cb-ic svg{stroke:#fff}
.ls-go{max-width:300px}
.ls-go-t{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ls-go .ic{flex:none}
.ls-cc:empty{display:none}
.ls-ccb{font-family:var(--mono);letter-spacing:.06em;min-width:48px}
.ls-ccb[aria-pressed=true]{color:var(--orange-t);box-shadow:inset 0 0 0 1px rgba(255,106,19,.55)}
/* modo enfoque junto al video: botón compacto (el nombre sigue para lectores de pantalla) */
.ls-ctl .focus-btn{width:42px;min-height:42px;padding:0}
.ls-ctl .focus-btn span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.ls-ctl .focus-btn kbd{display:none}
.focus-mode .ls-ctl .focus-btn{width:auto;padding:9px 15px}
.focus-mode .ls-ctl .focus-btn span{position:static;width:auto;height:auto;clip:auto}

/* ---------- capítulos ---------- */
.ls-chap{margin-top:12px}
.ls-chap ol{display:flex;gap:6px;overflow-x:auto;scrollbar-width:thin;padding:2px 2px 6px;overscroll-behavior-x:contain;scroll-snap-type:x proximity}
.ls-chap li{flex:none;scroll-snap-align:start}
.ls-chap button{display:inline-flex;align-items:center;gap:8px;min-height:40px;max-width:280px;padding:7px 14px 7px 10px;border-radius:999px;font-size:13.5px;color:var(--t80);background:rgba(var(--tint),.04);box-shadow:inset 0 0 0 1px var(--line2);transition:background-color .25s,box-shadow .25s}
.ls-chap button:hover{background:rgba(var(--tint),.08)}
.ls-chap button[aria-current]{color:var(--ivory);background:rgba(255,106,19,.12);box-shadow:inset 0 0 0 1px rgba(255,106,19,.5)}
.ls-chap .mono{font-size:11px;letter-spacing:.04em;color:var(--orange-t)}
.ls-chap-t{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ls-tabs{margin-bottom:12px}

/* ---------- temario: estados de lección y módulos cerrados ---------- */
.gl-left{display:block;font-size:12px;color:var(--t62);font-variant-numeric:tabular-nums}
.st-pending .gl-st{border-color:rgba(var(--tint),.32)}
.st-progress .gl-st{border-color:var(--orange);box-shadow:0 0 0 3px rgba(255,106,19,.12)}
.gl-dot{display:block;width:8px;height:8px;border-radius:50%;background:var(--orange);box-shadow:0 0 8px rgba(255,106,19,.8);animation:glPulse 1.8s ease-in-out infinite}
@keyframes glPulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(.6);opacity:.55}}
.gl-dur{flex:none;font-family:var(--mono);font-size:10.5px;color:var(--t50);font-variant-numeric:tabular-nums}
.st-locked{color:var(--t50)}
.st-locked .gl-st{border:1.5px dashed rgba(var(--tint),.22)}
.st-locked .gl-st .ic{width:11px;height:11px;stroke-width:2.4}
.gm-open{display:inline-flex;align-items:center;gap:5px;margin-top:3px;padding:2px 9px 2px 7px;border-radius:999px;font-size:11.5px;font-weight:600;color:var(--yellow);background:rgba(255,194,31,.1);box-shadow:inset 0 0 0 1px rgba(255,194,31,.3)}
.gm-open .ic{width:12px;height:12px;stroke-width:2.4}
.gm.is-shut .gm-t{color:var(--t72)}
.gm.is-shut .gm-n{opacity:.55}
.gm-lockb{flex:none;display:grid;place-items:center;width:28px;height:28px;border-radius:50%;background:rgba(var(--tint),.06);box-shadow:inset 0 0 0 1px var(--line2)}
.gm-lockb .gm-lock{width:14px;height:14px;color:var(--t62)}
.gm.is-shut .gm-lockb{background:rgba(255,194,31,.1);box-shadow:inset 0 0 0 1px rgba(255,194,31,.32)}
.gm.is-shut .gm-lockb .gm-lock{color:var(--yellow)}

/* ---------- tarjeta al completar (no bloquea: sin fondo ni foco atrapado) ---------- */
.ls-win{position:fixed;right:24px;bottom:24px;z-index:90;display:flex;align-items:center;gap:14px;width:min(500px,calc(100vw - 32px));padding:14px 14px 14px 16px;border-radius:22px;background:linear-gradient(160deg,var(--panel-a),var(--panel-b));box-shadow:0 26px 70px rgba(var(--sh),calc(.55 * var(--shk))),0 0 0 1px rgba(255,106,19,.38),0 0 50px rgba(255,106,19,.18);animation:lwIn .5s var(--e-spring) both}
.ls-win.out{animation:lwOut .25s ease-in both}
.lw-ic{flex:none;width:40px;height:40px;border-radius:50%;display:grid;place-items:center;background:var(--grad-btn);color:#fff;box-shadow:0 8px 22px rgba(242,56,11,.45)}
.lw-ic .ic{width:20px;height:20px;stroke-width:2.8}
.lw-t{flex:1;min-width:0;display:grid;gap:2px}
.lw-t b{font-size:15px;letter-spacing:-.01em;white-space:nowrap}
.lw-t small{font-size:12.5px;color:var(--t62);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ls-win .btn{flex:none;min-height:42px}
.lw-x{flex:none;width:36px;height:36px}
@keyframes lwIn{from{opacity:0;transform:translateY(18px) scale(.96)}to{opacity:1;transform:none}}
@keyframes lwOut{to{opacity:0;transform:translateY(10px)}}

/* ---------- tableta y celular ---------- */
@media (max-width:900px){
  .ls-inst{margin-left:auto}
}
@media (max-width:640px){
  .ls-head{margin:14px 0 12px}
  .ls-bar{gap:12px}
  .ls-id{flex-basis:100%}
  .ls-head h1{font-size:20px}
  .ls-ctl{width:100%;justify-content:flex-start;gap:8px}
  .ls-ctl .btn-sm,.ls-ctl .complete,.ls-ctl .focus-btn{min-height:44px}
  .ls-ctl .complete,.ls-ctl .ls-go{flex:1 1 100%;max-width:none;justify-content:center}
  .ls-ctl .complete{order:0}.ls-ctl .ls-go{order:1}
  .ls-ctl .ls-prev{order:2;flex:1 1 0}.ls-ctl .ls-next{order:3;flex:1 1 0}.ls-ctl .ls-cc{order:4}.ls-ctl .focus-btn{order:5;width:44px}
  .ls-chap button{min-height:44px}
  .cv2 .cv-copy{left:16px;right:16px;bottom:16px;max-width:none;gap:7px}
  .cv2 .cv-cosmo:not(.has-img){right:-2%;top:8%;translate:none;width:40%}
  .cv-shade{background:linear-gradient(0deg,rgba(8,5,4,.95) 0%,rgba(8,5,4,.72) 46%,rgba(8,5,4,.12) 100%)}
  .cv-h{font-size:19px}
  .cv-sub{display:none}
  .cv-act{margin-top:2px}
  .pl-resume{left:8px;top:8px;font-size:12.5px;padding-left:10px}
  .ls-win{right:16px;left:16px;width:auto;bottom:calc(var(--bottom-h) + 12px);flex-wrap:wrap}
  .ls-win .btn{flex:1 1 auto}
}

/* ---------- movimiento reducido ---------- */
@media (prefers-reduced-motion:reduce){
  .gl-dot,.ls-win,.ls-win.out,.pl-resume,.ls-inst-m{animation:none!important}
}

/* Dock de la lección: pestañas y controles en una sola tarjeta blanca bajo el título */
.ls-dock{display:flex;align-items:center;justify-content:space-between;gap:10px 18px;flex-wrap:wrap;margin:0 0 14px;padding:8px 10px;border-radius:20px}
.ls-dock .ls-tabs{margin:0;background:transparent;box-shadow:none;padding:0;flex:0 1 auto;min-width:0}
.ls-dock .ls-ctl{flex:0 1 auto;gap:8px;justify-content:flex-end}
.ls-dock .ls-ctl .btn,.ls-dock .ls-ctl .btn *{text-shadow:none!important}
.ls-dock .ls-ctl .btn-ghost{background:rgba(var(--tint),.05);box-shadow:inset 0 0 0 1px var(--line)}
.ls-head{margin:14px 0 10px}
@media(max-width:900px){
  .ls-dock{flex-direction:column;align-items:stretch;padding:8px}
  .ls-dock .ls-tabs{width:100%}
  .ls-dock .ls-ctl{width:100%;justify-content:flex-start}
}