:root{--space-xs: .25rem;--space-sm: .5rem;--space-md: 1rem;--space-lg: 1.5rem;--space-xl: 2rem;--font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "Courier New", Courier, monospace;--transition-fast: .15s ease;--transition-base: .25s ease;--avatar-path: url(/images/Perfil_claro.gif);--avatar-loading-path-light: url(/images/Pensando_claro.gif);--avatar-loading-path-dark: url(/images/Pensando_oscuro.gif);--avatar-welcome: url(/images/Acadelia-welcome.gif)}body[data-theme=dark]{--avatar-path: url(/images/Perfil_oscuro.gif)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-family:var(--font-sans);-webkit-text-size-adjust:100%}body{line-height:1.5;-webkit-font-smoothing:antialiased}img,video{max-width:100%;height:auto;display:block}a{color:inherit}:root{--auth-primary: #582f0e;--auth-secondary: #7f4f24;--auth-sage: #a4ac86;--auth-sage-dark: #656d4a;--auth-bg: #f5f0e4;--auth-text: #160e0e;--auth-muted: #7a6055;--auth-border: rgba(88, 47, 14, .22);--auth-input-bg: #ffffff;--auth-error: #b91c1c;--auth-radius: 14px;--wood-dark: #2a1204;--wood-mid: #4a2810;--wood-sep: #120601}*,*:before,*:after{box-sizing:border-box}body.auth-page{margin:0;min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;font-family:Poppins,system-ui,sans-serif;padding:1.25rem 1rem;position:relative;overflow-x:hidden}.auth-bg{position:fixed;inset:0;background:url(/images/imagen.gif) center / cover no-repeat;z-index:0}.auth-bg:after{display:none}.auth-scene{position:relative;z-index:3;display:flex;align-items:stretch;border-radius:14px;overflow:hidden;box-shadow:0 20px 50px #00000052,0 6px 16px #0000002e,0 0 0 2px #50280a73}.auth-bookcase{width:96px;flex-shrink:0;min-height:280px;overflow:hidden;position:relative;background:repeating-linear-gradient(180deg,transparent 0,transparent 68px,#7a4c28 68px,#7a4c28 74px,#5c3418 74px,#5c3418 80px),repeating-linear-gradient(90deg,#d4884a 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#3a1a08}.auth-card-cap:after{content:"";position:absolute;bottom:0;left:0;right:0;height:20px;background:linear-gradient(to bottom,transparent,rgba(0,0,0,.25));pointer-events:none}.auth-logo{display:flex;justify-content:center;position:relative;z-index:1;margin:0}.auth-card-cap .auth-logo img{height:36px;width:auto;filter:brightness(0) invert(1);opacity:.92}.auth-lang-row{position:absolute;top:.78rem;right:.875rem;z-index:2;display:flex;gap:2px;padding:3px;border-radius:7px;background:#0e050173;border:1px solid rgba(160,85,10,.22);box-shadow:inset 0 2px 4px #0006,inset 0 1px #00000040}.auth-lang-btn{padding:3px 10px;font-size:.67rem;font-weight:700;font-family:Poppins,sans-serif;letter-spacing:.05em;color:#c8963c73;background:transparent;border:none;border-radius:4px;cursor:pointer;text-decoration:none;transition:color .18s,background .18s,box-shadow 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