:root{--bg-color: #fff8f0;--card-color: #FFFFFF;--card-secondary: #f0f0f0;--navbar-bg: rgba(255, 255, 255, .25);--text-main: #1F2937;--text-secondary: #4a4a4a;--text-black: #1a1a1a;--hero-main-text: #293447;--main-accent: #fa973a;--blue-accent: #5D9CEC;--ipc-accent: #a06af8;--mat-accent: #4ddb7c;--icse-accent: #FFCE54;--knew-accent: #4ddb7c;--accent-red: #ef4444;--accent-orange: #fda048;--accent-pink: #f9a8d4;--accent-celeste: #93c5fd;--accent-white: #ffffff;--overlay-backdrop: rgba(0, 0, 0, .4);--focus-ring-accent: color-mix(in srgb, var(--main-accent) 15%, transparent);--success-accent: #1DB954;--error-accent: #ef4444;--pending-accent: #ffce54;--mp-accent: #009ee3;--timer-accent: #22c55e;--warning-accent: #eab308;--category-color: var(--accent-orange);--clue-accent: #ff8f26;--card-border: rgba(0, 0, 0, .212);--shadow-sm: 0 4px 6px rgba(0, 0, 0, .05);--shadow-md: 0 10px 30px rgba(0, 0, 0, .199);--shadow-card: 0 10px 25px -5px rgba(0, 0, 0, .24);--shadow-card-hover: 0 10px 25px -5px rgba(0, 0, 0, .4);--skeleton-bg: #e2e8f0;--skeleton-shimmer: rgba(255, 255, 255, .5);--transition-fast: all .2s ease;--transition-medium: all .3s ease;--radius-sm: .5rem;--radius-md: .625rem;--radius-lg: .75rem;--radius-xl: .875rem;--radius-2xl: 1rem;--radius-3xl: 1.25rem;--radius-4xl: 1.5rem;--btn-height-md: 44px;--code-bg: #d8d8d8;--code-text: #000000;--login-bg: url(/assets/background-login.webp)}body[data-category=parciales]{--category-color: var(--accent-orange)}body[data-category=repaso]{--category-color: var(--accent-celeste)}body[data-category=teoria]{--category-color: var(--accent-pink)}[data-theme=dark]{--bg-color: #212327;--text-main: #E5E7EB;--text-secondary: #9CA3AF;--card-color: #292929;--card-secondary: #212327;--navbar-bg: rgba(30, 30, 50, .25);--hero-main-text: #F3F4F6;--card-border: rgba(255, 255, 255, .1);--skeleton-bg: #202122;--skeleton-shimmer: rgba(255, 255, 255, .1);--code-bg: #1b1b1b;--code-text: #ffffff;--login-bg: url(/assets/background-login-dark.webp)}*,*:before,*:after{box-sizing:border-box}*{margin:0;padding:0}html{scrollbar-width:thin;scrollbar-color:var(--main-accent) transparent}@media(hover:hover)and (pointer:fine){::-webkit-scrollbar{display:none}html{scrollbar-width:none;-ms-overflow-style:none}}body{background-color:var(--bg-color);min-height:100vh}section{scroll-margin-top:10rem}@media(max-width:900px){section{scroll-margin-top:8rem}}body{font-family:Inter,sans-serif;color:var(--text-main);line-height:1.5}p{line-height:1.6}a{color:inherit}.flex-center{display:flex;align-items:center;justify-content:center}.hidden{display:none!important}@keyframes slideInDown{0%{transform:translate(-50%,-100%);opacity:0}to{transform:translate(-50%);opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes shimmer{0%{transform:translate(-100%)}to{transform:translate(100%)}}@keyframes spin{to{transform:rotate(360deg)}}.notificacion{position:fixed;top:11rem;left:50%;transform:translate(-50%);width:90%;max-width:800px;color:var(--text-black);font-weight:600;padding:1rem;border-radius:var(--radius-lg);z-index:10000;text-align:center;animation:slideInDown .5s cubic-bezier(.175,.885,.32,1.275);transition:opacity .5s ease}.notificacion--success{background-color:#4ddb7c}.notificacion--error{background-color:var(--error-accent)}.notificacion--fade-out{opacity:0}@media(max-width:768px){.notificacion{padding:1rem;top:9rem}}.skeleton{position:relative;overflow:hidden;background-color:var(--skeleton-bg)!important;border-color:var(--skeleton-bg)!important;color:transparent!important;pointer-events:none;-webkit-user-select:none;user-select:none}.skeleton:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent 0%,var(--skeleton-shimmer) 50%,transparent 100%);animation:shimmer 1s infinite}.btn-skeleton{width:100%;height:38px;border-radius:var(--radius-md);display:block}.loading{position:relative;color:transparent!important;pointer-events:none}.loading:after{content:"";position:absolute;top:50%;left:50%;width:18px;height:18px;margin:-9px 0 0 -9px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}.nav-skeleton{width:200px;height:var(--btn-height-md);background:#00000026;border-radius:var(--radius-md);position:relative;overflow:hidden}.nav-skeleton:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent 0%,var(--skeleton-shimmer) 50%,transparent 100%);animation:shimmer 1s infinite}.auth-loading.hidden,.auth-guest.hidden,.auth-required.hidden{display:none!important}.container{max-width:68.75rem;margin:0 auto;padding:0 1.25rem}.navbar{display:flex;justify-content:space-between;align-items:center;padding:5px 1.2rem;position:fixed;top:0;left:0;width:100%;z-index:1000;background:var(--navbar-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}.logo img{height:8.5rem;width:auto;display:block}.logo .logo-dark,[data-theme=dark] .logo .logo-light{display:none}[data-theme=dark] .logo .logo-dark{display:block}.nav-center{display:flex;align-items:center;gap:.625rem;position:absolute;left:50%;transform:translate(-50%)}.nav-dropdown{position:relative}.nav-dropdown-trigger{display:flex;align-items:center;gap:.5rem;padding:.625rem 1.25rem;background:color-mix(in srgb,var(--main-accent) 10%,transparent);border:1px solid color-mix(in srgb,var(--main-accent) 20%,transparent);border-radius:var(--radius-md);cursor:pointer;font-size:1rem;font-weight:600;color:var(--main-accent);transition:var(--transition-fast)}.nav-dropdown-trigger:hover{background:color-mix(in srgb,var(--main-accent) 15%,transparent)}.nav-dropdown-label{display:flex;align-items:center;gap:.5rem}.nav-dropdown-arrow{font-size:.65rem;opacity:.7;transition:transform var(--transition-fast)}.nav-dropdown-arrow.rotated{transform:rotate(180deg)}.nav-dropdown-menu{position:absolute;top:calc(100% + .5rem);left:50%;min-width:180px;background:var(--card-color);border:1px solid var(--card-border);border-radius:var(--radius-md);padding:.5rem;opacity:0;visibility:hidden;transform:translate(-50%) translateY(-10px);transition:var(--transition-fast);z-index:100;box-shadow:var(--shadow-card)}.nav-dropdown-menu.open{opacity:1;visibility:visible;transform:translate(-50%) translateY(0)}.nav-dropdown-menu .nav-item{display:flex;align-items:center;gap:.5rem;padding:.625rem .875rem;border-radius:var(--radius-sm);width:100%}.nav-dropdown-menu .nav-item:hover{background:#80808026}.nav-dropdown-menu .nav-item.active{background:color-mix(in srgb,var(--main-accent) 10%,transparent);color:var(--main-accent)}.nav-right{display:flex;align-items:center;gap:.625rem}.nav-right>.btn-nav-cta.auth-guest{width:200px;min-width:200px;justify-content:center}.nav-item{text-decoration:none;color:var(--text-main);font-weight:600;padding:.625rem 1.25rem;border-radius:var(--radius-md);transition:var(--transition-fast);display:flex;align-items:center;gap:.625rem}.nav-item:hover{background-color:#ffffff80;color:var(--main-accent)}.nav-item.active{background-color:color-mix(in srgb,var(--main-accent) 10%,transparent);color:var(--main-accent);border:1px solid color-mix(in srgb,var(--main-accent) 20%,transparent)}.pomodoro-container{display:flex;align-items:center;gap:.5rem;background:#8080801a;padding:.4rem .8rem;height:44px;border-radius:var(--radius-md);cursor:pointer;transition:var(--transition-fast);border:1px solid rgba(0,0,0,.05)}[data-theme=dark] .pomodoro-container{border-color:#ffffff26}.pomodoro-container:hover{background:#80808033;border-color:var(--card-border)}.pomodoro-container.active{background:color-mix(in srgb,var(--timer-accent) 15%,transparent);border-color:var(--timer-accent);color:var(--timer-accent)}.pomodoro-container.resetting{transform:scale(.9)}.pomodoro-icon{font-size:1rem}.pomodoro-time{font-family:Roboto Mono,monospace;font-weight:700;font-size:.95rem;min-width:48px;text-align:center}.pomodoro-wrapper{position:relative;display:flex;align-items:center}.pomodoro-menu{position:absolute;top:calc(100% + 10px);left:50%;transform:translate(-50%) translateY(-10px);background:var(--card-color);border:1px solid var(--card-border);border-radius:var(--radius-lg);padding:1rem;box-shadow:var(--shadow-card);display:flex;flex-direction:column;gap:1rem;width:200px;z-index:1000;opacity:0;visibility:hidden;transition:var(--transition-fast)}.pomodoro-menu.active{opacity:1;visibility:visible;transform:translate(-50%) translateY(0)}.pomo-title{font-size:.85rem;font-weight:600;color:var(--text-main);text-align:center;text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid var(--card-border);padding-bottom:.75rem}.pomo-settings{display:flex;align-items:center;justify-content:center;gap:0}.pomo-input{width:60px;height:38px;padding:.4rem;border-top:1px solid var(--card-border);border-bottom:1px solid var(--card-border);border-left:none;border-right:none;border-radius:0;background:var(--card-secondary);color:var(--text-main);font-family:Roboto Mono,monospace;text-align:center;font-size:1rem;pointer-events:none}.pomo-adjust-btn{width:40px;height:38px;border:1px solid var(--card-border);background:var(--card-secondary);color:var(--text-main);cursor:pointer;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.9rem;transition:var(--transition-fast)}.pomo-adjust-btn:first-child{border-top-left-radius:var(--radius-sm);border-bottom-left-radius:var(--radius-sm);border-right:1px solid var(--card-border)}.pomo-adjust-btn:last-child{border-top-right-radius:var(--radius-sm);border-bottom-right-radius:var(--radius-sm);border-left:1px solid var(--card-border)}.pomo-adjust-btn:hover{color:var(--main-accent);border-color:var(--main-accent)}.pomo-controls{display:flex;justify-content:space-between;gap:.5rem}.pomo-btn{flex:1;display:flex;align-items:center;justify-content:center;padding:.5rem;border:none;border-radius:var(--radius-sm);cursor:pointer;background:var(--card-secondary);color:var(--text-main);transition:var(--transition-fast);font-size:1rem}.pomo-btn:hover{background:var(--card-border)}.pomo-btn.play{background:var(--timer-accent);color:var(--text-black);border:1px solid var(--timer-accent)}.pomo-btn.play:hover{background:var(--card-color);color:var(--timer-accent)}.pomo-btn.pause{background:var(--warning-accent);color:var(--text-black);border:1px solid var(--warning-accent)}.pomo-btn.pause:hover{background:var(--card-color);color:var(--warning-accent)}.pomo-btn.reset{color:var(--text-main);border:1px solid var(--card-border)}.pomo-btn.reset:hover{color:var(--main-accent);border-color:var(--main-accent);background:var(--card-secondary)}.mobile-navbar-pomodoro{display:none}@media(max-width:900px){.logo img{height:7.25rem}.nav-center,.nav-right{display:none}.mobile-wrapper{display:flex}.mobile-actions .theme-toggle{width:42px;height:42px;padding:0}[data-theme=dark] .mobile-actions .hamburger{border-color:#ffffff26}.mobile-menu{display:none;position:fixed;top:6.875rem;left:0;width:100%;background:var(--navbar-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);flex-direction:column;padding:1.25rem;z-index:999;align-items:flex-start}.mobile-menu.active{display:flex}.mobile-menu .nav-item{width:100%;text-align:center;margin-bottom:.625rem;padding-left:.625rem;display:block}.desktop-pomodoro{display:none}.mobile-navbar-pomodoro{display:flex!important;padding:0;font-size:.9rem}.mobile-navbar-pomodoro .pomodoro-time{font-size:.85rem;min-width:42px}}@media(max-width:430px){.mobile-wrapper{flex-wrap:wrap;justify-content:flex-end;gap:.2rem}.mobile-navbar-pomodoro{flex:0 0 100%;max-width:calc(84px + .5rem);margin-left:3rem;order:3;justify-content:center;margin-right:0}.mobile-navbar-pomodoro .pomodoro-menu{left:auto;right:0;transform:translateY(-10px)}.mobile-navbar-pomodoro .pomodoro-menu.active{transform:translateY(0)}}.mobile-wrapper{display:none;align-items:center;gap:.5rem}.mobile-actions{display:flex;align-items:center;gap:.5rem}.mobile-actions .theme-toggle{display:flex}.mobile-menu{display:none}@media(max-width:900px){.mobile-wrapper{display:flex}}.hamburger{width:42px;height:42px;padding:0;background:#8080801a;border:1px solid rgba(0,0,0,.05);border-radius:var(--radius-md);color:var(--text-main);font-size:1.5rem;cursor:pointer;transition:var(--transition-medium);display:flex;align-items:center;justify-content:center}[data-theme=dark] .hamburger{border-color:#ffffff26}.hamburger:hover{background-color:#80808033}.navbar.menu-open .hamburger{color:var(--main-accent);border-color:color-mix(in srgb,var(--main-accent) 20%,transparent);background-color:color-mix(in srgb,var(--main-accent) 10%,transparent)}.theme-toggle{background:#8080801a;border:1px solid rgba(0,0,0,.05);color:var(--text-main);font-size:1.3rem;cursor:pointer;width:44px;height:44px;padding:0;border-radius:var(--radius-md);transition:var(--transition-fast);display:flex;align-items:center;justify-content:center}[data-theme=dark] .theme-toggle{border-color:#ffffff26}.theme-toggle:hover{background-color:#ffffff4d;color:var(--main-accent)}.theme-toggle .fa-sun{display:block}.theme-toggle .fa-moon,[data-theme=dark] .theme-toggle .fa-sun{display:none}[data-theme=dark] .theme-toggle .fa-moon{display:block}.user-info-container{display:flex;align-items:center;justify-content:center;gap:.5rem;width:200px;height:44px}.user-avatar{width:3.5rem;height:3.5rem;border-radius:50%;object-fit:cover;object-position:center;border:2px solid var(--main-accent);background:var(--card-secondary)}.user-name{font-weight:600;font-size:.9rem;color:var(--text-main);max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.btn-logout{background:none;border:none;color:var(--text-secondary);font-size:1.1rem;cursor:pointer;padding:.375rem;border-radius:var(--radius-sm);transition:var(--transition-fast);display:flex;align-items:center;justify-content:center}.btn-logout:hover{color:var(--accent-red);background:color-mix(in srgb,var(--accent-red) 10%,transparent)}.user-info-container-mobile{width:100%;display:flex;flex-direction:column;gap:.75rem;padding:1rem;background:#ffffff1a;border-radius:var(--radius-md);margin-top:.5rem}[data-theme=dark] .user-info-container-mobile{background:#0003}.mobile-user-row{display:flex;align-items:center;gap:.75rem}.btn-logout-mobile{width:100%;padding:.75rem 1rem;background:color-mix(in srgb,var(--accent-red) 10%,transparent);border:1px solid color-mix(in srgb,var(--accent-red) 30%,transparent);border-radius:var(--radius-md);color:var(--accent-red);font-weight:600;font-size:.9rem;cursor:pointer;transition:var(--transition-fast);display:flex;align-items:center;justify-content:center;gap:.5rem}.btn-logout-mobile:hover{background:color-mix(in srgb,var(--accent-red) 20%,transparent)}.site-footer{background:var(--bg-color);padding-top:3rem;position:relative}.site-footer:after{content:"";position:absolute;top:0;left:0;width:100%;height:1px;background:var(--card-border)}.site-footer:before{content:"";position:absolute;top:-4rem;left:0;width:100%;height:4rem;background:linear-gradient(to top,var(--bg-color) 0%,var(--bg-color) 40%,transparent 100%);pointer-events:none}.footer-container{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:3rem;padding-bottom:5rem;align-items:start}.footer-brand{display:flex;flex-direction:column;gap:.75rem}.footer-logo{display:flex;align-items:center;gap:.5rem;font-size:1.5rem;font-weight:700;color:var(--text-main)}.footer-logo img{width:3.5rem;height:3.5rem;rotate:-10deg;object-fit:cover;transform:translateY(-.25rem)}[data-theme=dark] .footer-logo img{content:url(/assets/favicon-dormido.webp)}.footer-tagline{color:var(--text-secondary);font-size:.95rem;max-width:300px;line-height:1.5}.footer-links h4,.footer-contact h4,.footer-payments h4{color:var(--text-main);font-size:1rem;font-weight:600;margin-bottom:1rem;text-transform:uppercase;letter-spacing:.05em}.footer-payments h4{margin-bottom:0}.footer-links ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:.75rem}.footer-links a{color:var(--text-secondary);text-decoration:none;font-size:.95rem;transition:var(--transition-fast)}.footer-links a:hover{color:var(--main-accent)}.footer-contact{display:flex;flex-direction:column;gap:.75rem}.footer-contact h4{margin-bottom:0rem}.social-icons{display:flex;gap:.75rem}.social-icons .social-button{width:2.5rem;height:2.5rem;font-size:1.1rem}.footer-email-link{color:var(--text-secondary);text-decoration:none;transition:var(--transition-fast)}.footer-email-link:hover{color:var(--main-accent)}.footer-payments{display:flex;flex-direction:column}.footer-payments .mp-logo{width:160px;height:auto;display:block;transform:translate(-1rem)}[data-theme=dark] .footer-payments .mp-logo{content:url(/assets/mp-horizontal-white.svg)}.footer-bottom{border-top:1px solid var(--card-border);padding:1.5rem 0;text-align:center}.footer-bottom p{color:var(--text-secondary);font-size:.85rem;margin:.25rem 0}.footer-disclaimer{opacity:.7;font-size:.8rem}.footer-legal-links{margin:.5rem 0;font-size:.85rem}.footer-legal-links a{color:var(--text-secondary);text-decoration:none;transition:color var(--transition-fast)}.footer-legal-links a:hover{color:var(--main-accent);text-decoration:underline}.footer-legal-links .separador{margin:0 .5rem;color:var(--text-secondary)}body.legal-page{padding-top:8rem}.legal-content{max-width:800px;margin:2rem auto 4rem;padding:0 1.5rem}.legal-content h1{font-size:2.5rem;margin-bottom:2rem;color:var(--text-main)}.legal-content h2{font-size:1.5rem;margin-top:2rem;margin-bottom:1rem;color:var(--text-main)}.legal-content p{margin-bottom:1rem;color:var(--text-secondary);line-height:1.6}.legal-content ul{margin-bottom:1rem;padding-left:1.5rem;color:var(--text-secondary)}.legal-content li{margin-bottom:.5rem}@media(max-width:900px){.footer-container{grid-template-columns:2fr 1fr 1fr;gap:2rem}.footer-payments{grid-column:2 / 4}}@media(max-width:768px){.site-footer{padding-top:2rem}.footer-container{grid-template-columns:1fr 1fr;gap:2rem 1.5rem}.footer-brand{grid-column:1 / -1;align-items:center;text-align:center;margin-bottom:.5rem}.footer-logo{justify-content:center}.footer-payments{grid-column:unset}.footer-payments .mp-logo{transform:translate(0)}.footer-bottom{padding:1rem}}@media(max-width:480px){.footer-container{grid-template-columns:1fr;gap:1.75rem;text-align:center;padding-bottom:2rem}.footer-links ul,.footer-contact,.footer-payments{align-items:center}.footer-payments .mp-logo{transform:translate(0)}}.btn-hero-primary,.btn-hero-secondary{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.875rem 1.5rem;font-size:1rem;font-weight:600;border-radius:var(--radius-md);text-decoration:none;transition:var(--transition-fast)}.btn-hero-primary{background-color:var(--main-accent);color:var(--text-black);box-shadow:var(--shadow-sm);border:1px solid var(--main-accent)}.btn-hero-primary:hover{background-color:var(--card-color);color:var(--main-accent);transform:translateY(-2px)}.btn-hero-secondary{background-color:transparent;color:var(--text-main);border:1px solid var(--card-border)}.btn-hero-secondary:hover{background-color:#ffffff40;color:var(--main-accent);border-color:var(--main-accent);transform:translateY(-2px)}.btn-nav-cta{background-color:var(--main-accent);color:var(--text-black);box-shadow:var(--shadow-sm);border:1px solid var(--main-accent);display:flex;align-items:center;justify-content:center;gap:.5rem;min-width:160px;height:var(--btn-height-md);box-sizing:border-box;cursor:pointer;font-size:1rem;font-weight:600;padding:0 .5rem;border-radius:var(--radius-md);transition:var(--transition-fast)}.nav-item.btn-nav-cta:hover,.btn-nav-cta:hover{background-color:var(--card-color);color:var(--main-accent);border-color:var(--main-accent);transform:translateY(-2px)}.social-button{display:flex;align-items:center;justify-content:center;width:3.43rem;height:3.43rem;border-radius:50%;text-decoration:none;transition:var(--transition-fast);font-size:1.6rem}.social-button.instagram{background:linear-gradient(45deg,#f09433,#e6683c,#dc2743,#cc2366,#bc1888);color:var(--accent-white)}.social-button.tiktok{background:#000;color:var(--accent-white)}.btn-acceder,.btn-comprar,.btn-probar-gratis{width:auto;flex:1;height:38px;padding:0 1rem;box-sizing:border-box;border-radius:var(--radius-md);font-size:.85rem;font-weight:600;cursor:pointer;transition:var(--transition-fast);display:flex;align-items:center;justify-content:center;gap:.5rem;text-decoration:none}.btn-acceder{border:none;color:var(--text-black);text-decoration:none}.btn-acceder i{line-height:1;display:flex}.materia-card .btn-acceder{background-color:var(--card-accent);border:1px solid var(--card-accent)}.materia-card .btn-acceder:hover{background-color:var(--card-color);color:var(--card-accent);border-color:var(--card-accent)}.btn-comprar{border:1px solid var(--success-accent);background-color:var(--success-accent);color:var(--text-black)}.btn-comprar i{line-height:1;display:flex}.btn-comprar:hover{background-color:var(--card-color);color:var(--success-accent);border-color:var(--success-accent)}.btn-probar-gratis{background-color:transparent;color:var(--blue-accent);border:1px solid var(--blue-accent)}.btn-probar-gratis:hover{background-color:color-mix(in srgb,var(--blue-accent),transparent 85%);color:var(--blue-accent);border-color:var(--blue-accent)}.btn-cancel-purchase,.btn-confirm-purchase{padding:.75rem 1.5rem;border-radius:var(--radius-md);font-weight:600;cursor:pointer;transition:var(--transition-fast)}.btn-cancel-purchase{border:1px solid color-mix(in srgb,var(--accent-red) 30%,transparent);background:transparent;color:var(--accent-red)}.btn-cancel-purchase:hover{background:color-mix(in srgb,var(--accent-red) 10%,transparent)}.btn-confirm-purchase{background:var(--mp-accent);color:var(--text-black);display:flex;align-items:center;gap:.5rem;border:1px solid var(--mp-accent)}.btn-confirm-purchase:hover:not(:disabled){background:var(--card-accent);color:var(--mp-accent)}.btn-confirm-purchase:disabled{background:var(--text-secondary);border-color:var(--text-secondary);cursor:not-allowed;opacity:.8}.btn-primary-modal{width:100%;padding:1.25rem;background:var(--main-accent);color:var(--text-black);font-weight:700;border:2px solid transparent;border-radius:var(--radius-lg);font-size:1rem;cursor:pointer;transition:var(--transition-fast);display:flex;align-items:center;justify-content:center;gap:10px}.btn-primary-modal:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover);background:var(--card-color);color:var(--main-accent);border-color:var(--main-accent)}.btn-primary-modal:disabled{opacity:.6;cursor:not-allowed;transform:none}@media(max-width:600px){.btn-cancel-purchase,.btn-confirm-purchase{width:100%;justify-content:center}}.btn-feedback,.btn-review-errors,.btn-reset-progress{border-radius:var(--radius-md);border:2px solid transparent;font-size:.85rem;cursor:pointer;transition:var(--transition-fast)}.btn-feedback{flex:1;display:flex;align-items:center;justify-content:center;gap:.4rem;padding:.6rem .75rem;font-weight:700}.btn-knew{background:color-mix(in srgb,var(--knew-accent) 15%,transparent);border-color:color-mix(in srgb,var(--knew-accent) 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var(--card-border);border-radius:.75rem;cursor:pointer;text-decoration:none;transition:var(--transition-fast)}.btn-secondary-action:hover{color:var(--main-accent);border-color:var(--main-accent)}.card-header-text{flex:1;min-width:0;display:flex;flex-direction:column;justify-content:center}.card-header-text h3{font-size:1.25rem;margin:0;line-height:1.2;word-wrap:break-word}.card-header-text .subtitle{font-size:.8rem;color:var(--text-secondary);font-weight:500;word-wrap:break-word;line-height:1.2}.cards-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.56rem}.materia-card{background:var(--card-color);border-radius:var(--radius-3xl);padding:1.56rem;box-shadow:var(--shadow-card);border-top:10px solid transparent;transition:var(--transition-fast);display:flex;flex-direction:column}.materia-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-card-hover)}.materia-card[style*=--card-accent]{border-top-color:var(--card-accent)}.materia-card.ipc-color{--card-accent: var(--ipc-accent);border-top-color:var(--card-accent)}.materia-card.mat-color{--card-accent: var(--mat-accent);border-top-color:var(--card-accent)}.materia-card.icse-color{--card-accent: var(--icse-accent);border-top-color:var(--card-accent)}.card-top{display:flex;align-items:center;gap:.93rem;margin-bottom:1.56rem}.icon-sq{flex-shrink:0;width:3.25rem;height:3.25rem;border-radius:var(--radius-xl);display:flex;align-items:center;justify-content:center;font-size:1.8rem;transition:var(--transition-fast)}.materia-card .icon-sq{background-color:color-mix(in srgb,var(--card-accent),transparent 85%);color:var(--card-accent);border:1px solid color-mix(in srgb,var(--card-accent),transparent 70%)}.info-block{padding-bottom:1.5rem;flex:1;display:flex;flex-direction:column}.materia-card .info-block .info-title{font-size:.8rem;color:var(--text-secondary);margin-bottom:.75rem;font-weight:600;padding-bottom:.5rem;border-bottom:1px solid var(--card-accent)}.info-list{display:flex;flex-direction:column;gap:.5rem}.info-item{display:flex;align-items:flex-start;gap:.625rem;font-size:.9rem;color:var(--text-main)}.info-item-centered{justify-content:center;color:var(--text-secondary);font-style:italic}.info-item i{width:1.125rem;text-align:center;font-size:.85rem;margin-top:.25rem}.materia-card .info-item i{color:var(--card-accent)}.last-updated{display:flex;align-items:center;gap:.625rem;font-size:.75rem;color:var(--text-secondary);margin-top:auto;padding-top:1rem;padding-left:.2rem}.last-updated i{color:var(--text-secondary);font-size:.9rem}.card-actions{display:flex;justify-content:space-between;gap:.5rem;margin-top:auto}.badge-proximamente{width:100%;padding:.625rem 1.64rem;border:1px dashed var(--text-secondary);border-radius:var(--radius-md);font-size:.85rem;font-weight:600;color:var(--text-secondary);display:flex;align-items:center;justify-content:center;cursor:not-allowed;box-sizing:border-box}.card-slider-container{overflow:hidden;width:calc(100% + 1rem);margin:0 -.5rem;flex:1;display:flex;flex-direction:column}.card-slider{display:flex;width:200%;flex:1;transition:transform .4s cubic-bezier(.25,.8,.25,1)}.card-slide{width:50%;flex-shrink:0;padding:0 .5rem;display:flex;flex-direction:column}.materia-card.show-info .card-slider{transform:translate(-50%)}.btn-toggle-info{background:transparent;border:none;color:var(--text-main);font-size:1.2rem;border-radius:50%;display:flex;align-items:center;justify-content:center;width:36px;height:36px;pointer-events:none;transition:var(--transition-fast)}.toggle-info-container{display:flex;flex-direction:column;align-items:center;justify-content:center;margin-left:auto;cursor:pointer;opacity:.7;transition:var(--transition-fast);flex-shrink:0;margin-top:.5rem}.toggle-info-container:hover{opacity:1}.toggle-info-container:hover .btn-toggle-info,.toggle-info-container:hover .info-label{color:var(--card-accent)}.toggle-info-container .btn-toggle-info{margin-left:0;margin-bottom:0}.info-label{font-size:.7rem;color:var(--text-secondary);font-weight:600;line-height:normal;margin-top:-.4rem;pointer-events:none;transition:var(--transition-fast)}.materia-card.show-info .info-label{opacity:0}.search-container{display:flex;align-items:center;background:var(--card-color);border:1px solid var(--card-border);border-radius:var(--radius-lg);padding:.75rem 1rem;margin-bottom:2rem;width:100%;max-width:600px;margin-left:auto;margin-right:auto;box-shadow:var(--shadow-sm);transition:var(--transition-fast)}.search-container:focus-within{border-color:var(--main-accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--main-accent) 15%,transparent)}.search-icon{color:var(--text-secondary);margin-right:.75rem;font-size:1rem}.search-input{flex:1;border:none;background:transparent;font-size:1rem;color:var(--text-main);outline:none;font-family:inherit}.search-input::placeholder{color:var(--text-secondary);opacity:.7}.modal-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:var(--overlay-backdrop);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);z-index:2000;display:none;align-items:center;justify-content:center;opacity:0}.modal-overlay.active{display:flex;opacity:1}.purchase-modal{--modal-accent: var(--main-accent);background:var(--card-color);border-radius:var(--radius-3xl);border:3px solid var(--modal-accent);box-shadow:var(--shadow-card);max-width:500px;width:90%;position:relative;transform:scale(.9) translateY(20px);transition:transform .3s ease}.modal-close{position:absolute;top:1rem;right:1rem;background:none;border:none;font-size:1.5rem;color:var(--text-main);cursor:pointer;transition:color .2s}.modal-close:hover{color:var(--modal-accent)}.purchase-modal-content{padding:2rem;text-align:center}.purchase-modal-content h2{font-size:1.5rem;color:var(--text-main);margin-bottom:.5rem}.purchase-helper-text{font-size:.9rem;color:var(--text-secondary);margin-bottom:1.5rem;line-height:1.4}.purchase-materia-info{display:flex;flex-direction:column;background:var(--card-secondary);padding:1.25rem;border-radius:var(--radius-md);margin-bottom:1.5rem;text-align:left}.purchase-materia-header{display:flex;justify-content:space-between;align-items:center;gap:1rem;width:100%}.purchase-divider{width:100%;height:1px;background:var(--card-border);margin:.2rem 0 .6rem}.purchase-modal-subtitle{font-size:.8rem;font-weight:700;color:var(--text-secondary);margin-top:.5rem;margin-bottom:0;text-transform:uppercase;letter-spacing:.5px}.purchase-section-title{font-size:.8rem;font-weight:600;color:var(--text-main);margin-bottom:-.2rem}.purchase-materia-name{font-size:1.1rem;font-weight:600;color:var(--text-main);flex:1;word-break:break-word;min-width:0}.purchase-price{font-size:1.1rem;font-weight:700;color:var(--modal-accent);white-space:nowrap;flex-shrink:0}.purchase-materia-details{display:flex;flex-direction:column;gap:.6rem;text-align:left;padding:0 .2rem}.purchase-questions-list{display:flex;flex-direction:column;gap:.6rem}.purchase-detail-item{display:flex;align-items:flex-start;gap:.75rem;font-size:.9rem;color:var(--text-secondary);line-height:1.3}.purchase-updated-container .last-updated{margin-top:0;padding-top:.5rem;justify-content:center;font-size:.9rem}.purchase-detail-item i{color:var(--modal-accent);width:1.25rem;text-align:center}.purchase-checkboxes{display:flex;flex-direction:column;gap:.75rem;margin-bottom:1rem;text-align:left}.purchase-checkbox{display:flex;align-items:flex-start;gap:.75rem;cursor:pointer;font-size:.875rem;color:var(--text-main)}.purchase-checkbox input[type=checkbox]{appearance:none;-webkit-appearance:none;width:1.25rem;height:1.25rem;margin-top:.1rem;border:2px solid var(--card-border);border-radius:var(--radius-sm);cursor:pointer;flex-shrink:0;position:relative;background:transparent;transition:background .15s,border-color .15s}.purchase-checkbox input[type=checkbox]:checked{background:var(--modal-accent);border-color:var(--modal-accent)}.purchase-checkbox input[type=checkbox]:checked:after{content:"";position:absolute;left:50%;top:45%;width:4px;height:8px;border:solid var(--text-black);border-width:0 2px 2px 0;transform:translate(-50%,-50%) rotate(45deg)}.purchase-checkbox span{line-height:1.4}.purchase-checkbox a{text-decoration:underline;color:var(--modal-accent);font-weight:600}.purchase-actions{display:flex;gap:1rem;justify-content:center}.purchase-terms-text{text-align:center;color:var(--text-secondary);font-size:.85rem;margin-top:1rem}.purchase-terms-link{color:var(--main-accent);text-decoration:none;font-weight:500}.purchase-terms-link:hover{text-decoration:underline}.confirm-modal{--modal-accent: var(--warning-accent);background:var(--card-color);border-radius:var(--radius-3xl);border:3px solid var(--modal-accent);box-shadow:var(--shadow-card);max-width:450px;width:90%;position:relative;transition:transform .3s ease}.confirm-modal-content{padding:2rem;text-align:center}.confirm-modal-content h2{font-size:1.5rem;color:var(--text-main);margin-bottom:1.5rem}.warning-box{background:color-mix(in srgb,var(--warning-accent) 20%,transparent);border:1px solid color-mix(in srgb,var(--warning-accent) 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var(--error-accent)}.btn-confirm-danger:hover{background:var(--card-color);color:var(--error-accent)}@media(max-width:600px){#purchase-modal{align-items:flex-start;padding-top:0}.purchase-modal{max-width:100%;width:95%;border-radius:var(--radius-2xl)}.confirm-modal{margin-top:30vh}.purchase-actions{flex-direction:column}.modal-overlay{align-items:flex-start;padding-top:20px;overflow-y:auto}}.access-overlay{position:fixed;inset:0;width:100%;height:100%;background-color:var(--bg-color);z-index:9999;display:flex;justify-content:center;align-items:center;color:var(--text-main)}.access-overlay.hidden{display:none!important}.loading-content,.denied-content{text-align:center;padding:2.5rem;background:var(--card-color);border-radius:var(--radius-3xl);box-shadow:var(--shadow-md);border:1px solid var(--card-border);max-width:400px;width:90%}.loading-content i{font-size:3rem;color:var(--main-accent);margin-bottom:1.5rem}.loading-content p{font-size:1.2rem;font-weight:500}.denied-content i{font-size:3rem;color:var(--accent-red);margin-bottom:1rem}.denied-content h2{font-size:1.5rem;margin-bottom:1rem;color:var(--text-main)}.denied-content p{margin-bottom:1.5rem;color:var(--text-secondary)}.btn-primary{background-color:var(--main-accent);color:var(--accent-white);padding:.75rem 1.5rem;border-radius:var(--radius-md);border:none;font-weight:600;cursor:pointer;transition:var(--transition-fast);text-decoration:none;display:inline-block}.btn-primary:hover{background-color:var(--text-main);transform:translateY(-2px)}.report-modal{--modal-accent: var(--warning-accent);background:var(--card-color);border-radius:var(--radius-3xl);border:2px solid var(--modal-accent);box-shadow:var(--shadow-card);max-width:450px;width:90%;position:relative;transition:transform .3s ease}.report-modal-content{padding:2rem;text-align:center}.report-modal-content h2{font-size:1.5rem;color:var(--modal-accent)}.report-title-icon{margin-right:.5rem}.report-subtitle{font-size:.9rem;color:var(--text-secondary);margin-bottom:.5rem;font-weight:500}.report-modal-content p{font-size:.95rem;color:var(--text-main);margin-bottom:1rem}.report-form{display:flex;flex-direction:column;gap:1rem;text-align:left}.report-label{font-size:.9rem;font-weight:600;color:var(--text-main);margin-bottom:-.5rem}.report-select{width:100%;padding:.75rem 2.5rem .75rem .75rem;border-radius:var(--radius-md);border:1px solid var(--card-border);background:var(--bg-color);color:var(--text-main);font-family:inherit;font-size:.95rem;appearance:none;-webkit-appearance:none;cursor:pointer;transition:var(--transition-fast)}.report-select:focus{outline:none;border-color:var(--modal-accent)}.select-icon{position:absolute;right:1rem;top:50%;transform:translateY(-50%);color:var(--text-secondary);pointer-events:none;font-size:.8rem}.report-textarea{width:100%;min-height:120px;padding:.75rem;border-radius:var(--radius-md);border:1px solid var(--card-border);background:var(--bg-color);color:var(--text-main);font-family:inherit;font-size:.95rem;resize:vertical;transition:var(--transition-fast)}.report-textarea:focus{outline:none;border-color:var(--modal-accent)}.report-actions{display:flex;gap:1rem;justify-content:center;margin-top:1rem}.btn-submit-report{background:var(--modal-accent);color:var(--text-black);border:1px solid var(--modal-accent);padding:.75rem 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.header-section{background-image:url(/assets/background-waves-dark.webp)}.hero-content{flex:1;display:flex;align-items:center;justify-content:flex-start;margin-top:14rem;padding-bottom:5rem}.hero-text-box{max-width:34.375rem;margin-top:0;text-align:center}.hero-text-box h1{font-size:3.5rem;color:var(--hero-main-text);margin-bottom:1.25rem;letter-spacing:-3px;text-shadow:0 4px 12px rgba(0,0,0,.1)}.hero-text-box p{font-size:1.1rem;color:var(--text-secondary);margin-bottom:2.2rem;font-weight:500}.hero-cta-buttons{display:flex;align-items:center;justify-content:center;gap:1rem;flex-wrap:wrap;margin-top:1.25rem}.ticker-section{position:relative;z-index:10;top:-1.875rem;padding-bottom:10rem}.ticker-box{background:var(--card-color);border:1px solid var(--card-border);border-radius:var(--radius-md);padding:.8rem 1rem;height:4.5rem;overflow:hidden;position:relative;box-shadow:var(--shadow-sm);display:flex;align-items:center;justify-content:flex-start;max-width:800px;margin:0 auto;gap:1rem}.ticker-badge{background:var(--card-secondary);color:var(--main-accent);padding:.4rem 1rem;border-radius:var(--radius-3xl);font-size:.8rem;font-weight:700;display:flex;align-items:center;justify-content:center;gap:.5rem;flex-shrink:0;border:none;box-shadow:none;min-width:110px}.ticker-content-wrapper{position:relative;flex:1;height:100%;overflow:hidden}.ticker-item{position:absolute;top:0;left:0;width:100%;height:100%;display:flex;align-items:center;line-height:1.3;font-size:1rem;font-weight:500;color:var(--text-main);text-align:left;transform:translateY(150%);pointer-events:none}.ticker-item.active{transform:translateY(0);transition:transform .6s cubic-bezier(.2,.8,.2,1);pointer-events:auto}.ticker-item a{color:var(--main-accent);text-decoration:none;font-weight:700;transition:opacity .2s}.ticker-item a:hover{opacity:.8;text-decoration:underline}.ticker-item.exit-up{transform:translateY(-150%);transition:transform .6s 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.mode-banner-icon:before{content:"";font-family:"Font Awesome 6 Free";font-weight:900}.mode-banner.mode-demo .mode-banner-icon:before{content:"";font-family:"Font Awesome 6 Free";font-weight:900}.card-feedback-buttons{display:flex;gap:.6rem;margin:.75rem 0}.card-feedback-buttons[data-feedback=done]{opacity:.5;pointer-events:none}.equation-display{font-family:serif;font-size:1.8rem;text-align:center;margin-bottom:1rem;font-style:italic;color:var(--text-main)}.math-result{font-family:serif;font-style:italic;font-size:1.2rem;font-weight:600}.enunciado-text{font-size:1.1rem;font-weight:500;margin-bottom:1rem;line-height:1.5;color:var(--text-main);white-space:pre-line}.embed-block{background-color:var(--card-secondary);border-left:4px solid var(--main-accent);padding:1rem;margin-bottom:1rem;border-radius:.25rem;font-size:.95rem;line-height:1.6;color:var(--text-secondary);white-space:pre-line}.stat-value{font-size:1.2rem;font-weight:700;color:var(--text-main);line-height:1.2}.stat-details{display:flex;gap:4px;font-size:.75rem;font-weight:600;margin:2px 0}.correct-count{color:var(--knew-accent)}.incorrect-count{color:var(--accent-red)}.stat-remaining{font-size:.7rem;color:var(--text-secondary);margin-top:2px;opacity:.8}.concept-title{text-align:center;font-size:1.4rem;font-weight:700;color:var(--accent-pink);margin:0 0 .5rem}.definition-text{text-align:left;font-size:1.1rem;line-height:1.6;color:var(--text-main);margin-bottom:1rem;white-space:pre-line}.biblio-reference{font-size:.9rem;color:var(--accent-pink);text-align:center;margin-top:auto;margin-bottom:1rem;display:flex;align-items:center;justify-content:center;gap:.5rem}.example-box{background:color-mix(in srgb,var(--accent-pink) 10%,transparent);border:1px solid 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.code-block{font-family:monospace;font-size:.85rem;line-height:1.6;color:var(--code-text);margin:0}.mis-materias-content{padding-top:160px;padding-bottom:120px;min-height:100vh;background-image:url(/assets/background-waves2.webp);background-size:cover;background-position:center top;background-repeat:no-repeat;background-attachment:fixed}.page-header h1{font-size:2rem;color:var(--text-main);display:flex;align-items:center;gap:1rem}.page-header p{color:var(--text-secondary);font-size:1rem}.materias-grid{display:flex;flex-wrap:wrap;justify-content:center;gap:2rem;width:100%;max-width:1400px;margin:0 auto;padding:2rem 0}.materia-detail-card{background:var(--card-color);border-radius:var(--radius-3xl);overflow:hidden;box-shadow:var(--shadow-card);transition:var(--transition-fast);margin-top:0;width:calc(50% - 1rem);max-width:720px;display:flex;flex-direction:column}.materia-detail-card.ipc-color{--materia-accent: var(--ipc-accent)}.materia-detail-card.mat-color{--materia-accent: var(--mat-accent)}.materia-detail-card.icse-color{--materia-accent: var(--icse-accent)}.materia-detail-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-card-hover)}.materia-header{padding:20px 25px;display:flex;align-items:center;gap:15px;position:relative;border-bottom:1px solid var(--card-border);background:color-mix(in srgb,var(--materia-accent),transparent 80%)}.materia-icon{width:50px;height:50px;border-radius:var(--radius-xl);display:flex;align-items:center;justify-content:center;font-size:1.5rem;background:color-mix(in srgb,var(--materia-accent),transparent 85%);color:var(--materia-accent)}.materia-info{flex:1}.materia-info h2{font-size:1.3rem;color:var(--text-main)}.materia-subtitle{font-size:.8rem;color:var(--text-secondary)}.materia-badge{background:color-mix(in srgb,var(--main-accent) 15%,transparent);color:var(--main-accent);padding:6px 12px;border-radius:var(--radius-3xl);font-size:.75rem;font-weight:600;display:flex;align-items:center;gap:5px}.materia-badge.gold{background:color-mix(in srgb,var(--success-accent) 15%,transparent);color:var(--success-accent)}.materia-body{padding:1.5rem 1rem;display:flex;flex-direction:column;flex:1}.materia-actions{display:flex;gap:12px}.btn-action{flex:1;padding:.75rem 1rem;border-radius:var(--radius-lg);cursor:pointer;font-size:.9rem;font-weight:600;text-decoration:none;display:flex;align-items:center;justify-content:center;gap:.5rem;transition:var(--transition-fast);border:1px solid transparent;line-height:1.2;text-align:center}.btn-action i{flex-shrink:0}.btn-action.primary{background-color:var(--materia-accent);color:var(--text-black);border-color:var(--materia-accent)}.btn-action.primary:hover{background-color:var(--card-color);color:var(--materia-accent)}.btn-action.secondary{background:var(--card-secondary);color:var(--text-main)}.btn-action.secondary:hover{background-color:color-mix(in srgb,var(--materia-accent),transparent 50%)}.add-materia-section{text-align:center}.btn-add-materia{background:transparent;border:2px dashed var(--main-accent);color:var(--main-accent);padding:16px 32px;border-radius:var(--radius-lg);font-size:1rem;font-weight:600;cursor:pointer;display:inline-flex;align-items:center;gap:10px;transition:var(--transition-fast);text-decoration:none}.btn-add-materia:hover{background:color-mix(in srgb,var(--main-accent) 10%,transparent);transform:scale(1.02)}[data-theme=dark] .mis-materias-content{background-image:url(/assets/background-waves-dark2.webp)}[data-theme=dark] .progress-bar-large,[data-theme=dark] .stat-item{background:var(--card-secondary)}[data-theme=dark] .btn-action.secondary{background:var(--card-secondary);color:var(--text-main)}[data-theme=dark] .btn-action.secondary:hover{background:color-mix(in srgb,var(--materia-accent),transparent 50%)}.empty-state-container{text-align:center;background:var(--card-color);border-radius:1.5rem;padding:4rem 2rem;box-shadow:var(--shadow-card);border:1px solid var(--card-border);margin:0rem auto;max-width:600px;display:none}.empty-state-container.visible{display:block}.empty-image{width:12rem;max-width:100%;height:auto}@media(max-width:480px){.empty-state-container{padding:2rem 1rem}.empty-image{width:8rem}}.empty-title{font-size:1.5rem;font-weight:700;color:var(--text-main);margin-bottom:.5rem}.empty-description{font-size:1rem;color:var(--text-secondary);margin-bottom:2rem;max-width:400px;margin-left:auto;margin-right:auto}.btn-empty-action{background-color:var(--main-accent);color:var(--text-black);border-color:var(--main-accent);width:auto;padding:.75rem 1.5rem;margin:0 auto;display:inline-flex;flex:none}.btn-empty-action:hover{background-color:var(--card-color);color:var(--main-accent);border-color:var(--main-accent)}[data-theme=dark] .empty-state-container{background:var(--card-secondary);border:1px solid color-mix(in srgb,var(--accent-white) 5%,transparent)}.loading-state,.error-state{grid-column:1 / -1;text-align:center;padding:4rem;display:flex;flex-direction:column;align-items:center;justify-content:center}.loading-state-icon{font-size:2rem;color:var(--main-accent)}.loading-state-text{margin-top:1rem;color:var(--text-secondary)}.error-state-icon{font-size:2rem;color:var(--accent-red);margin-bottom:1rem}.error-state-text{margin-bottom:1rem}.radial-progress{position:relative;width:65px;height:65px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;color:var(--text-main)}.radial-inner{display:flex;flex-direction:column;align-items:center;justify-content:center;line-height:1}.radial-num{font-size:.9rem}.radial-label{font-size:.5rem;color:var(--text-secondary);margin-top:2px;text-transform:uppercase;font-weight:600}.radial-progress:before{content:"";position:absolute;inset:0;border-radius:50%;padding:6px;background:conic-gradient(var(--materia-accent) var(--pct),rgba(255,255,255,.1) 0);-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:xor;mask-composite:exclude}.stats-header{font-size:.9rem;font-weight:600;color:var(--text-secondary);margin-bottom:.5rem;padding-left:.2rem;text-transform:uppercase;letter-spacing:.5px}.stats-list{background:var(--card-secondary);border-radius:12px;padding:0 1.25rem;margin-bottom:25px}.stat-row-new{padding:1rem 0;border-bottom:1px solid var(--card-border);display:flex;flex-direction:column;gap:4px}.stat-row-new:last-child{border-bottom:none}.sr-top{display:flex;justify-content:space-between;align-items:center}.sr-title{font-weight:500;display:flex;align-items:center;gap:8px;padding-right:1rem;font-size:1rem;color:var(--text-main)}.sr-val{font-weight:700;font-size:1rem;font-family:monospace;color:var(--text-main)}.sr-sub{font-size:.8rem;color:var(--text-secondary);display:flex;gap:8px}.val-green{color:var(--knew-accent)}.val-red{color:var(--accent-red)}.actions-row{display:grid;grid-template-columns:4fr 6fr;gap:12px;align-items:stretch;margin-top:auto}.btn-restart{width:100%;height:48px;background:transparent;color:var(--accent-red);border:1px solid color-mix(in srgb,var(--accent-red) 30%,transparent);border-radius:10px;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;font-size:.9rem;font-weight:600;transition:var(--transition-fast)}.btn-restart:hover{background:color-mix(in srgb,var(--accent-red) 10%,transparent)}.actions-row .btn-action{margin:0;height:48px}.insights-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:25px}.insight-box{background:var(--card-secondary);border-radius:12px;padding:12px;display:flex;flex-direction:column;gap:4px;position:relative;overflow:hidden;border:1px solid var(--card-border)}.ib-label{font-size:.7rem;color:var(--text-secondary);text-transform:uppercase;z-index:1;font-weight:600}.ib-val{font-weight:700;font-size:.95rem;z-index:1;margin-top:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--text-main)}.ib-score{font-size:.75rem;z-index:1;font-weight:700}.ib-icon{position:absolute;right:-5px;bottom:-5px;font-size:2.5rem;z-index:0;color:var(--text-main)}.insight-best .ib-score{color:var(--knew-accent)}.insight-weak .ib-score{color:var(--accent-red)}.sessions-section{margin-bottom:25px}.sec-title{font-size:.8rem;color:var(--text-secondary);text-transform:uppercase;margin-bottom:10px;font-weight:700;letter-spacing:.5px}.session-list{display:flex;flex-direction:column;gap:8px}.session-item{display:flex;justify-content:space-between;align-items:center;font-size:.85rem;padding:10px 12px;background:var(--card-secondary);border-radius:8px;border:1px solid var(--card-border)}.session-date{color:var(--text-secondary);font-size:.8rem}.session-score{font-weight:600;font-family:monospace;font-size:.9rem}.insight-box--empty{justify-content:center;align-items:center;opacity:.7}.insight-box--empty .ib-label{position:absolute;top:12px;left:12px}.insight-box__no-data{font-size:.8rem;margin-top:15px;color:var(--text-secondary)}.session-list__empty{font-size:.9rem;color:var(--text-secondary);padding:10px;text-align:center}@media(max-width:900px){.mis-materias-content{padding-top:140px}.page-header h1{font-size:1.5rem}.materias-grid{display:flex;flex-direction:column}.materia-detail-card{width:100%;max-width:100%}.materia-header{flex-wrap:wrap}.materia-badge{margin-top:10px}.stats-row{flex-wrap:wrap}.stat-item{min-width:calc(33% - 10px)}.materia-actions,.actions-row{grid-template-columns:1fr}}.purchase-status-page{min-height:100vh;display:flex;flex-direction:column;background-image:url(/assets/background-waves2.webp);background-size:cover;background-position:center bottom;background-repeat:no-repeat;background-attachment:fixed}[data-theme=dark] .purchase-status-page{background-image:url(/assets/background-waves-dark2.webp)}.purchase-content{flex:1;display:flex;align-items:center;justify-content:center;padding:12rem 1rem 10rem}.purchase-card{background:var(--card-color);border-radius:1.5rem;padding:1.5rem 3rem;max-width:500px;width:100%;text-align:center;box-shadow:var(--shadow-card);border-top:6px solid var(--theme-color);position:relative}.purchase-card.success{--theme-color: var(--mat-accent)}.purchase-card.failure{--theme-color: var(--error-accent)}.purchase-card.pending{--theme-color: var(--pending-accent)}.status-img{width:200px;height:auto;display:block;margin:0 auto 1.5rem}.purchase-title{font-size:2rem;font-weight:800;color:var(--text-main);margin-bottom:.75rem;letter-spacing:-1px;display:flex;align-items:center;justify-content:center;gap:.75rem}.purchase-subtitle{font-size:1.1rem;color:var(--text-secondary);margin-bottom:2rem;line-height:1.6}.info-box{background:var(--card-secondary);border-radius:1rem;padding:.5rem 1.25rem;margin-bottom:2rem;text-align:left}.detail-row{display:flex;justify-content:space-between;align-items:center;padding:.5rem 0}.detail-row:not(:last-child){border-bottom:1px solid var(--card-border)}.detail-label{color:var(--text-secondary);font-size:.9rem}.detail-value{color:var(--text-main);font-weight:600}.detail-value.status-success{color:var(--theme-color)}.post-purchase-actions{display:flex;flex-direction:column;gap:1rem}.purchase-help{margin-top:1rem;font-size:.85rem;color:var(--text-secondary)}.purchase-help a{color:var(--main-accent);text-decoration:none;font-weight:600}.purchase-help a:hover{text-decoration:underline}@media(max-width:600px){.purchase-content{padding-top:10rem}.purchase-card{padding:2rem 1.5rem}.purchase-title{font-size:1.5rem}.status-img{width:160px}}.contacto-page{min-height:100vh;display:flex;flex-direction:column;background-image:url(/assets/background-waves2.webp);background-size:cover;background-position:center bottom;background-repeat:no-repeat;background-attachment:fixed}[data-theme=dark] .contacto-page{background-image:url(/assets/background-waves-dark2.webp)}.contacto-content{flex:1;display:flex;flex-direction:column;align-items:center;padding:10rem 1.5rem;width:100%}.contacto-header{text-align:center;margin-bottom:3rem}.contacto-header h1{font-size:2.8rem;font-weight:800;color:var(--text-main);margin-bottom:1rem;letter-spacing:-1px}.contacto-header p{font-size:1.1rem;color:var(--text-secondary);max-width:500px;margin:0 auto;line-height:1.6}.contacto-grid{display:grid;grid-template-columns:repeat(2,minmax(0,350px));justify-content:center;gap:2rem;width:100%;max-width:1000px}.contacto-card{background:var(--card-color);border-radius:1.5rem;padding:2.5rem 2rem;text-align:center;text-decoration:none;box-shadow:var(--shadow-card);transition:all .3s cubic-bezier(.4,0,.2,1);position:relative;border:1px solid var(--card-border);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1.5rem;aspect-ratio:1 / 1;width:100%;max-width:350px;max-height:350px}.contacto-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-card-hover)}.instagram-card:hover{border-color:#e1306c}.instagram-card .card-icon i{color:#e1306c}.email-card:hover{border-color:var(--main-accent)}.email-card .card-icon i{color:var(--main-accent)}.card-icon{width:80px;height:80px;border-radius:50%;background:var(--card-secondary);display:flex;align-items:center;justify-content:center;font-size:2.5rem;transition:var(--transition-fast)}.card-info h3{font-size:1.4rem;font-weight:700;color:var(--text-main);margin-bottom:.5rem}.card-info p{font-size:1rem;color:var(--text-secondary);margin-bottom:1.5rem}.btn-card{display:inline-block;padding:.75rem 1.5rem;border-radius:var(--radius-md);font-weight:600;font-size:.95rem;transition:var(--transition-fast);color:var(--text-black);border:2px solid transparent}.instagram-card .btn-card{background:#e1306c;border-color:#e1306c}.instagram-card:hover .btn-card{background:transparent;color:#e1306c}.email-card .btn-card{background:var(--main-accent);border-color:var(--main-accent)}.email-card:hover .btn-card{background:transparent;color:var(--main-accent)}@media(max-width:900px){.contacto-grid{grid-template-columns:1fr;max-width:350px}.contacto-header h1{font-size:2.2rem}}.arrepentimiento-page{min-height:100vh;display:flex;flex-direction:column;background-image:url(/assets/background-waves2.webp);background-size:cover;background-position:center bottom;background-repeat:no-repeat;background-attachment:fixed}[data-theme=dark] .arrepentimiento-page{background-image:url(/assets/background-waves-dark2.webp)}.arrepentimiento-content{flex:1;display:flex;flex-direction:column;align-items:center;padding:10rem 1.5rem;width:100%}.arrepentimiento-header{text-align:center;margin-bottom:3rem}.arrepentimiento-header h1{font-size:2.8rem;font-weight:800;color:var(--text-main);margin-bottom:1rem;letter-spacing:-1px}.arrepentimiento-header p{font-size:1.1rem;color:var(--text-secondary);max-width:600px;margin:0 auto;line-height:1.6}.arrepentimiento-form-container{background:var(--card-color);border-radius:1.5rem;padding:2.5rem;box-shadow:var(--shadow-card);border:1px solid var(--card-border);width:100%;max-width:600px}.arrepentimiento-form{display:flex;flex-direction:column;gap:1.5rem}.form-group{display:flex;flex-direction:column;gap:.5rem}.form-group label{font-size:.95rem;font-weight:600;color:var(--text-main)}.form-input,.form-textarea{width:100%;padding:.85rem;border-radius:var(--radius-md);border:1px solid var(--card-border);background:var(--bg-color);color:var(--text-main);font-family:inherit;font-size:.95rem;transition:var(--transition-fast)}.form-input:focus,.form-textarea:focus{outline:none;border-color:var(--main-accent)}.form-textarea{resize:vertical;min-height:100px}.readonly-input{background:var(--card-color);color:var(--text-secondary);cursor:not-allowed;opacity:.8}.custom-select-wrapper{position:relative;width:100%}.custom-select-wrapper select{appearance:none;-webkit-appearance:none;padding-right:2.5rem;cursor:pointer}.select-icon{position:absolute;right:1rem;top:50%;transform:translateY(-50%);pointer-events:none;color:var(--text-secondary)}.arrepentimiento-disclaimer{font-size:.8rem;color:var(--text-secondary);opacity:.8;line-height:1.4;text-align:center;margin-top:.5rem}.link-accent{color:var(--main-accent);text-decoration:none;transition:var(--transition-fast)}.link-accent:hover{text-decoration:underline}.btn-submit-arr{width:100%;padding:1rem;background:var(--main-accent);color:var(--text-black);border:none;border-radius:var(--radius-md);font-weight:700;cursor:pointer;transition:var(--transition-fast);display:flex;justify-content:center;align-items:center;border:2px solid var(--main-accent)}.btn-submit-arr i,.btn-home-return i{margin-right:.5rem}.btn-submit-arr:hover:not(:disabled){background:var(--card-color);color:var(--main-accent)}.btn-submit-arr:disabled,.btn-submit-arr.disabled{background:var(--card-color);color:var(--text-secondary);border-color:var(--card-border);cursor:not-allowed;opacity:.7;pointer-events:none}@media(max-width:900px){.arrepentimiento-header h1{font-size:2.2rem}}.arrepentimiento-success{display:flex;flex-direction:column;align-items:center;text-align:center;padding:1rem 0}.success-icon-container{font-size:5rem;color:var(--success-accent);margin-bottom:1.5rem}.arrepentimiento-success h2{font-size:2rem;color:var(--text-main);margin-bottom:2rem;font-weight:800}.tracking-code-box{background:var(--bg-color);border:1px solid var(--card-border);border-radius:var(--radius-lg);padding:1.5rem;width:100%;margin-bottom:2rem}.tracking-label{display:block;color:var(--text-secondary);font-size:.95rem;margin-bottom:.75rem}.tracking-code-wrapper{display:flex;align-items:center;justify-content:center;gap:1rem}#tracking-code-text{font-family:inherit;font-size:1.5rem;font-weight:800;color:var(--main-accent);letter-spacing:1px}.btn-copy{background:var(--card-color);border:1px solid var(--card-border);color:var(--text-secondary);width:44px;height:44px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:var(--transition-fast)}.btn-copy:hover{color:var(--main-accent);border-color:var(--main-accent);background:transparent}.btn-copy.copy-success{color:var(--success-accent);border-color:var(--success-accent)}.success-description{color:var(--text-secondary);font-size:1.05rem;line-height:1.6;margin-bottom:2.5rem}.btn-home-return{display:inline-flex;align-items:center;justify-content:center;width:100%;padding:1rem;background:var(--main-accent);color:var(--text-black);border:2px solid var(--main-accent);border-radius:var(--radius-md);font-weight:700;cursor:pointer;transition:var(--transition-fast);text-decoration:none}.btn-home-return:hover{background:var(--card-color);color:var(--main-accent)}.system-page-wrapper{min-height:100vh;display:flex;flex-direction:column;background-image:url(/assets/background-waves2.webp);background-size:cover;background-position:center bottom;background-repeat:no-repeat;background-attachment:fixed}[data-theme=dark] .system-page-wrapper{background-image:url(/assets/background-waves-dark2.webp)}.system-content{flex:1;display:flex;align-items:center;justify-content:center;padding:5rem 1rem}.system-card{background:var(--card-color);border-radius:1.5rem;padding:2.5rem 3rem;max-width:500px;width:100%;text-align:center;box-shadow:var(--shadow-card);border-top:6px solid var(--theme-color);position:relative;display:flex;flex-direction:column;align-items:center}.system-card.maintenance{--theme-color: var(--warning-accent)}.system-card.server-error,.system-card.not-found{--theme-color: var(--error-accent)}.system-img{width:200px;height:auto;display:block;margin:0 auto 1.5rem}.system-title{font-size:2.2rem;font-weight:800;color:var(--text-main);margin-bottom:1rem;letter-spacing:-1px;display:flex;align-items:center;justify-content:center;gap:.75rem}.system-subtitle{font-size:1.15rem;color:var(--text-secondary);margin-bottom:2rem;line-height:1.6}.system-actions{display:flex;flex-direction:column;gap:1rem;width:100%}@media(max-width:600px){.system-card{padding:2rem 1.5rem}.system-title{font-size:1.6rem}.system-img{width:160px}}