*{margin:0;padding:0;box-sizing:border-box}html,body{overflow-x:hidden;width:100%}body{font-family:var(--font-family);line-height:1.6;color:var(--text-primary);background-color:var(--bg-primary);transition:background-color .3s ease,color .3s ease}a{color:var(--primary-color);text-decoration:none;transition:color .3s ease}a:hover{color:var(--primary-dark)}button{font-family:inherit;cursor:pointer;border:none;border-radius:var(--border-radius);padding:var(--spacing-xs) var(--spacing-md);font-size:var(--font-size-base);transition:all .3s ease}.btn-primary{background-color:var(--primary-color);color:var(--text-inverse);transition:var(--transition)}.btn-primary:hover{background-color:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-lg)}input,textarea{font-family:inherit;font-size:var(--font-size-base);padding:var(--spacing-xs);border:1px solid var(--border-color);border-radius:var(--border-radius);width:100%;transition:border-color .3s ease}input:focus,textarea:focus{outline:none;border-color:var(--primary-color)}.app-layout{min-height:100vh;display:flex;flex-direction:column}.main-content{flex:1;padding:var(--spacing-lg);max-width:var(--max-width);margin:0 auto;width:100%}.container{max-width:var(--max-width);margin:0 auto;padding:0 var(--spacing-sm)}.text-center{text-align:center}.mb-sm{margin-bottom:var(--spacing-sm)}.mb-md{margin-bottom:var(--spacing-md)}.mb-lg{margin-bottom:var(--spacing-lg)}.theme-toggle{background:#ffffff1a;border:2px solid var(--header-accent);border-radius:50px;padding:var(--spacing-xs) var(--spacing-sm);cursor:pointer;transition:var(--transition);display:flex;align-items:center;gap:var(--spacing-xs);color:var(--header-text);font-size:var(--font-size-sm);font-weight:500;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.theme-toggle:hover{background-color:var(--header-accent);color:var(--header-text);transform:scale(1.05);box-shadow:0 4px 12px rgba(var(--header-accent-rgb),.3)}.theme-toggle:active{transform:scale(.95)}.theme-icon{font-size:var(--font-size-lg);transition:var(--transition)}.theme-toggle:hover .theme-icon{transform:rotate(180deg)}@media(max-width:768px){.theme-toggle{padding:var(--spacing-xs)}.theme-text{display:none}}.header{background:linear-gradient(180deg,var(--header-bg-light) 0%,var(--header-bg) 100%);color:var(--header-text);padding:var(--spacing-sm);border-bottom:1px solid rgba(var(--primary-color-rgb),.35);box-shadow:var(--shadow);transition:var(--transition)}.header-nav{display:flex;justify-content:space-between;align-items:center;max-width:var(--max-width);margin:0 auto}.header-logo a{color:var(--header-text);text-decoration:none;transition:var(--transition);display:flex;align-items:center;gap:var(--spacing-sm)}.header-logo-icon{width:26px;height:26px;padding:4px;border-radius:7px;background:rgba(var(--primary-color-rgb),.15);transition:var(--transition)}.header-wordmark{font-family:var(--font-family-mono);font-size:1.05rem;font-weight:700;letter-spacing:-.01em}.header-logo a:hover .header-logo-icon{background:rgba(var(--primary-color-rgb),.3)}.header-logo a:hover .header-wordmark{color:var(--header-accent)}.header-right{display:flex;align-items:center;gap:var(--spacing-lg)}.header-menu{display:flex;list-style:none;gap:var(--spacing-lg);margin:0;padding:0;align-items:center}.header-menu a{color:var(--header-text);text-decoration:none;font-size:var(--font-size-base);transition:var(--transition);padding:var(--spacing-xs) var(--spacing-sm);border-radius:var(--border-radius);position:relative}.header-menu a:hover{color:var(--header-accent);background-color:rgba(var(--primary-color-rgb),.15);transform:translateY(-1px)}.header-menu a:after{content:"";position:absolute;bottom:-3px;left:50%;width:0;height:2px;background-color:var(--header-accent);transition:var(--transition);transform:translate(-50%)}.header-menu a:hover:after{width:80%}.header-link-button{background:none;border:none;color:var(--header-text);text-decoration:none;font-size:var(--font-size-base);font-family:inherit;cursor:pointer;transition:var(--transition);padding:var(--spacing-xs) var(--spacing-sm);border-radius:var(--border-radius);position:relative;vertical-align:baseline;display:inline-block;margin:0;line-height:inherit}.header-link-button:hover{color:var(--header-accent);background-color:rgba(var(--primary-color-rgb),.15);transform:translateY(-1px)}.header-link-button:after{content:"";position:absolute;bottom:-3px;left:50%;width:0;height:2px;background-color:var(--header-accent);transition:var(--transition);transform:translate(-50%)}.header-link-button:hover:after{width:80%}.user-info span{color:var(--header-text);font-size:var(--font-size-sm);font-weight:500;opacity:.9}.logout-button{background:rgba(var(--accent-color-rgb),.8);color:var(--header-text);border:1px solid rgba(var(--accent-color-rgb),.6);padding:var(--spacing-xs) var(--spacing-sm);border-radius:var(--border-radius);font-size:var(--font-size-sm);cursor:pointer;transition:var(--transition)}.logout-button:hover{background:rgba(var(--accent-color-rgb),1);transform:translateY(-1px)}.header-menu-toggle{display:none;background:none;border:none;color:var(--header-text);font-size:1.5rem;line-height:1;cursor:pointer;padding:var(--spacing-xs) var(--spacing-sm);border-radius:var(--border-radius);transition:var(--transition)}.header-menu-toggle:hover{background-color:#ffffff1a}@media(max-width:768px){.header-nav{flex-wrap:wrap}.header-menu-toggle{display:block}.header-right{display:none;flex-direction:column;align-items:stretch;gap:var(--spacing-sm);width:100%;margin-top:var(--spacing-sm)}.header-right.is-open{display:flex}.header-menu{flex-direction:column;align-items:stretch;gap:0;width:100%}.header-menu a,.header-link-button{display:block;width:100%;box-sizing:border-box;text-align:center;padding:var(--spacing-sm)}.header-menu a:after,.header-link-button:after{display:none}.user-info{text-align:center}.logout-button{width:100%}}.footer{background:linear-gradient(45deg,var(--footer-bg) 0%,var(--footer-bg-secondary) 100%);color:var(--footer-text);padding:var(--spacing-lg);margin-top:auto;border-top:3px solid var(--footer-accent);transition:var(--transition);position:relative}.footer-content{max-width:var(--max-width);margin:0 auto;text-align:center}.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:var(--spacing-lg);margin-bottom:var(--spacing-sm)}.footer-section h4{margin-bottom:var(--spacing-xs);color:var(--footer-accent);font-weight:600}.footer-section p{margin-bottom:var(--spacing-xs);font-size:var(--font-size-sm);color:var(--footer-text);opacity:.9;transition:var(--transition)}.footer-section p:hover{opacity:1;color:var(--footer-accent);cursor:pointer}.footer-divider{border:1px solid rgba(93,173,226,.3);margin:var(--spacing-sm) 0;box-shadow:0 1px #5dade21a}.footer-copyright{margin:0;font-size:var(--font-size-sm);color:var(--footer-text);opacity:.8}@media(max-width:768px){.footer-grid{grid-template-columns:1fr;gap:var(--spacing-sm)}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-xs);border:none;border-radius:var(--border-radius);font-family:inherit;font-weight:500;cursor:pointer;transition:var(--transition);text-decoration:none;box-sizing:border-box}.btn-primary{background-color:var(--primary-color);color:var(--text-inverse);border:2px solid var(--primary-color)}.btn-primary:hover:not(:disabled){background-color:var(--primary-dark);border-color:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-lg)}.btn-secondary{background-color:transparent;color:var(--primary-color);border:2px solid var(--primary-color)}.btn-secondary:hover:not(:disabled){background-color:var(--primary-color);color:var(--text-inverse);transform:translateY(-1px)}.btn-danger{background-color:var(--accent-color);color:var(--text-inverse);border:2px solid var(--accent-color)}.btn-danger:hover:not(:disabled){background-color:#c0392b;border-color:#c0392b;transform:translateY(-1px)}.btn-ghost{background-color:transparent;color:var(--text-primary);border:2px solid transparent}.btn-ghost:hover:not(:disabled){background-color:var(--bg-secondary);border-color:var(--border-color)}.btn-small{padding:var(--spacing-xs) var(--spacing-sm);font-size:var(--font-size-sm)}.btn-medium{padding:var(--spacing-sm) var(--spacing-md);font-size:var(--font-size-base)}.btn-large{padding:var(--spacing-sm) var(--spacing-lg);font-size:var(--font-size-lg)}.btn:disabled{background-color:var(--text-secondary);color:var(--bg-primary);border-color:var(--text-secondary);cursor:not-allowed;transform:none;opacity:.6}.btn.loading{cursor:wait;opacity:.8}.btn-spinner{width:12px;height:12px;border:2px solid transparent;border-top:2px solid currentColor;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.btn-full-width{width:100%}.cta-section{text-align:center;border-radius:var(--border-radius);padding:var(--spacing-lg);margin:var(--spacing-lg) 0;transition:var(--transition);position:relative;overflow:hidden}.cta-section:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.1),transparent);transition:left .8s ease}.cta-section:hover:before{left:100%}.cta-primary{background:linear-gradient(135deg,var(--primary-color),var(--primary-dark));color:var(--text-inverse);box-shadow:var(--shadow-lg)}.cta-secondary{background-color:var(--bg-primary);color:var(--text-primary);border:2px solid var(--primary-color);box-shadow:var(--shadow)}[data-theme=dark] .cta-secondary{background-color:var(--secondary-color);color:#fff;border:2px solid var(--primary-color)}.cta-success{background:linear-gradient(135deg,var(--success-color),#15803d);color:var(--text-inverse);box-shadow:var(--shadow-lg)}.cta-warning{background:linear-gradient(135deg,var(--warning-color),#b45309);color:var(--text-inverse);box-shadow:var(--shadow-lg)}.cta-small{padding:var(--spacing-md)}.cta-medium{padding:var(--spacing-lg)}.cta-large{padding:var(--spacing-xl)}.cta-icon{font-size:var(--font-size-3xl);margin-bottom:var(--spacing-sm);opacity:.9}.cta-content{margin-bottom:var(--spacing-md)}.cta-title{margin:0 0 var(--spacing-xs) 0;font-size:var(--font-size-xl);font-weight:600}.cta-description{margin:0 0 var(--spacing-md) 0;font-size:var(--font-size-base);line-height:1.6;opacity:.95}[data-theme=dark] .cta-secondary .cta-title,[data-theme=dark] .cta-secondary .cta-description{color:#fff;opacity:1}.cta-actions{display:flex;justify-content:center;gap:var(--spacing-sm);flex-wrap:wrap}.cta-button{min-width:140px}.cta-button-link{text-decoration:none}.cta-primary .cta-button{background-color:var(--bg-inverse);color:var(--bg-primary);font-weight:700;font-size:var(--font-size-lg);padding:var(--spacing-md) var(--spacing-xl);box-shadow:0 4px 12px #00000040}.cta-primary .cta-button:hover:not(:disabled){color:var(--bg-primary);border-color:var(--bg-primary);box-shadow:0 6px 20px #00000059}.cta-secondary .cta-button{background-color:var(--primary-color);color:#fff;border-color:var(--primary-color);font-weight:600}.cta-secondary .cta-button:hover:not(:disabled){background-color:var(--primary-dark);border-color:var(--primary-dark);color:#fff}[data-theme=dark] .cta-secondary .cta-button{background-color:var(--primary-color);color:#fff;border-color:var(--primary-color)}[data-theme=dark] .cta-secondary .cta-button:hover:not(:disabled){background-color:var(--primary-dark);border-color:var(--primary-dark)}.cta-section:hover{transform:scale(1.02);box-shadow:var(--shadow-hover)}.cta-primary:hover,.cta-success:hover,.cta-warning:hover{box-shadow:0 8px 25px #0003}.cta-secondary:hover{border-color:var(--primary-dark);background-color:rgba(var(--primary-color-rgb),.1)}[data-theme=dark] .cta-secondary:hover{background-color:var(--secondary-color-hover);border-color:var(--primary-color)}@media(max-width:768px){.cta-section{padding:var(--spacing-md);margin:var(--spacing-md) 0}.cta-title{font-size:var(--font-size-lg)}.cta-description{font-size:var(--font-size-sm)}.cta-actions{flex-direction:column;align-items:center}.cta-button{width:100%;max-width:250px}}.home-container{max-width:880px;margin:0 auto}.hero{position:relative;text-align:center;padding:var(--spacing-xl) var(--spacing-md) var(--spacing-lg);margin-bottom:var(--spacing-xl);border-radius:var(--border-radius);background:radial-gradient(ellipse 80% 55% at 50% -10%,rgba(var(--primary-color-rgb),.16),transparent 70%),var(--bg-primary);display:flex;flex-direction:column;align-items:center}.hero-eyebrow{font-family:var(--font-family-mono);font-size:.75rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--primary-color);margin-bottom:var(--spacing-sm)}.hero-title{margin:0 0 var(--spacing-sm) 0;font-size:clamp(1.9rem,4vw,2.75rem);font-weight:800;line-height:1.15;color:var(--text-primary);text-wrap:balance;max-width:20ch}.hero-subtitle{margin:0 0 var(--spacing-lg) 0;max-width:58ch;font-size:var(--font-size-lg);line-height:1.6;color:var(--text-secondary)}.hero-actions{display:flex;gap:var(--spacing-sm);flex-wrap:wrap;justify-content:center;margin-bottom:var(--spacing-lg)}.hero-byline{margin:0;padding-top:var(--spacing-md);border-top:1px solid var(--border-color);width:100%;max-width:46ch;font-size:var(--font-size-sm);color:var(--text-secondary)}.home-section{margin-bottom:var(--spacing-xl)}.section-title{font-size:var(--font-size-xl);font-weight:700;color:var(--text-primary);margin:0 0 var(--spacing-md) 0}.learn-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,1fr);gap:var(--spacing-md)}.learn-item{border-left:3px solid var(--primary-color);padding:.15rem var(--spacing-md)}.learn-item strong{display:block;color:var(--text-primary);font-size:var(--font-size-base);margin-bottom:.25rem}.learn-item p{margin:0;color:var(--text-secondary);font-size:var(--font-size-sm);line-height:1.5}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--spacing-md)}.feature-item{text-align:left;padding:var(--spacing-md);background-color:var(--bg-card);border-radius:var(--border-radius);border:1px solid var(--border-color);transition:var(--transition)}.feature-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--primary-color)}.feature-icon{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;margin-bottom:var(--spacing-sm);border-radius:8px;font-size:1.1rem;background:rgba(var(--primary-color-rgb),.12)}.feature-item strong{display:block;color:var(--text-primary);margin-bottom:var(--spacing-xs);font-size:var(--font-size-base)}.feature-item p{margin:0;font-size:var(--font-size-sm);color:var(--text-secondary);line-height:1.4}@media(max-width:640px){.hero{padding:var(--spacing-lg) var(--spacing-sm) var(--spacing-md)}.learn-list{grid-template-columns:1fr}.hero-actions{flex-direction:column;width:100%}.hero-actions a{display:flex;width:100%}.hero-actions .btn{width:100%}}.form-container{margin:0 auto;padding:var(--spacing-lg);background-color:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--border-radius);box-shadow:var(--shadow-lg);transition:var(--transition)}.form-container:hover{box-shadow:var(--shadow-hover)}.form-header{text-align:center;margin-bottom:var(--spacing-lg)}.form-title{color:var(--text-primary);margin:0 0 var(--spacing-xs) 0;font-size:var(--font-size-2xl);font-weight:600}.form-subtitle{color:var(--text-secondary);margin:0;font-size:var(--font-size-sm);line-height:1.5}.form-content{display:flex;flex-direction:column;gap:var(--spacing-sm)}.form-container.small{max-width:350px;padding:var(--spacing-md)}.form-container.large{max-width:600px;padding:var(--spacing-xl)}@media(max-width:768px){.form-container{margin:0 var(--spacing-sm);padding:var(--spacing-md)}.form-title{font-size:var(--font-size-xl)}}.form-field{display:flex;flex-direction:column;gap:var(--spacing-xs);margin-bottom:var(--spacing-sm)}.form-field-label{font-weight:500;color:var(--text-primary);font-size:var(--font-size-sm)}.form-field-label .required{color:var(--accent-color);margin-left:2px}.form-field-input{padding:var(--spacing-sm);border:1px solid var(--border-color);border-radius:var(--border-radius);font-size:var(--font-size-base);background-color:var(--bg-primary);color:var(--text-primary);transition:var(--transition);font-family:inherit}.form-field-input:focus{border-color:var(--primary-color);outline:none;box-shadow:0 0 0 2px rgba(var(--primary-color-rgb),.2)}.form-field-input:disabled{background-color:var(--bg-secondary);color:var(--text-secondary);cursor:not-allowed;opacity:.7}.form-field-input.error{border-color:var(--accent-color);box-shadow:0 0 0 2px rgba(var(--accent-color-rgb),.2)}.form-field-error{color:var(--accent-color);font-size:var(--font-size-sm);margin-top:2px;animation:fadeIn .3s ease-in}@keyframes fadeIn{0%{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:translateY(0)}}.message{display:flex;align-items:center;gap:var(--spacing-xs);padding:var(--spacing-sm);border-radius:var(--border-radius);margin-bottom:var(--spacing-md);font-size:var(--font-size-sm);animation:slideInShake .5s ease-out}.message-error{background-color:var(--accent-color);color:var(--text-inverse);border:1px solid rgba(var(--accent-color-rgb),.3)}.message-success{background-color:var(--success-color);color:var(--text-inverse);border:1px solid rgba(var(--success-color-rgb),.3)}.message-warning{background-color:var(--warning-color);color:var(--text-inverse);border:1px solid rgba(var(--warning-color-rgb),.3)}.message-info{background-color:var(--primary-color);color:var(--text-inverse);border:1px solid rgba(var(--primary-color-rgb),.3)}.message-icon{font-size:var(--font-size-base);flex-shrink:0}.message-text{flex:1;line-height:1.4}.message-close{background:none;border:none;color:inherit;cursor:pointer;padding:2px;font-size:var(--font-size-sm);opacity:.8;transition:var(--transition);flex-shrink:0}.message-close:hover{opacity:1;transform:scale(1.1)}@keyframes slideInShake{0%{transform:translate(-100%);opacity:0}60%{transform:translate(10px);opacity:1}80%{transform:translate(-5px)}to{transform:translate(0);opacity:1}}.login-footer{margin-top:var(--spacing-lg);padding-top:var(--spacing-md);border-top:1px solid var(--border-color);text-align:center}.forgot-password-link{display:block;color:var(--primary-color);text-decoration:none;font-weight:500;margin-bottom:var(--spacing-md);transition:color var(--transition)}.forgot-password-link:hover{color:var(--primary-dark);text-decoration:underline}.login-footer p{margin:0;color:var(--text-secondary);font-size:.9rem}.register-link{color:var(--primary-color);text-decoration:none;font-weight:500;transition:color var(--transition)}.register-link:hover{color:var(--primary-dark);text-decoration:underline}.external-link{background:none;border:none;padding:0;cursor:pointer;font:inherit;text-decoration:none;transition:color var(--transition)}.external-link:hover{text-decoration:underline;color:inherit}.external-link:focus{outline:2px solid var(--primary-color);outline-offset:2px;border-radius:2px}.forgot-password-link.external-link{display:block;color:var(--primary-color);font-weight:500;margin-bottom:var(--spacing-md)}.forgot-password-link.external-link:hover{color:var(--primary-dark);text-decoration:underline}.register-link.external-link{color:var(--primary-color);font-weight:500;display:inline}.register-link.external-link:hover{color:var(--primary-dark);text-decoration:underline}.auto-login-status{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-md);padding:var(--spacing-lg);background:linear-gradient(135deg,var(--bg-primary),var(--bg-secondary));border:1px solid var(--border-color);border-radius:var(--border-radius);text-align:center}.auto-login-status p{margin:0;color:var(--text-primary);font-size:1rem;font-weight:500}.auto-login-spinner{font-size:2rem;animation:spin 1s linear infinite}.output-console{background-color:var(--bg-secondary);border-radius:var(--border-radius);border:1px solid var(--border-color);display:flex;flex-direction:column;height:100%;overflow:hidden}.console-header{display:flex;justify-content:space-between;align-items:center;padding:var(--spacing-md);background-color:var(--bg-primary);border-bottom:1px solid var(--border-color)}.console-header h4{margin:0;color:var(--text-primary);font-size:1rem}.clear-btn{padding:var(--spacing-xs) var(--spacing-sm);background:linear-gradient(135deg,#ff9800,#f57c00);color:#fff;border:none;border-radius:var(--border-radius);cursor:pointer;font-size:.8rem;font-weight:500;transition:all var(--transition-speed)}.clear-btn:hover{background:linear-gradient(135deg,#ffb74d,#ff9800);transform:translateY(-1px);box-shadow:var(--shadow-sm)}.console-output{flex:1;padding:var(--spacing-md);background-color:#1e1e1e;color:#d4d4d4;font-family:Consolas,Monaco,Courier New,monospace;font-size:.9rem;line-height:1.4;overflow-y:auto;white-space:pre-wrap;word-wrap:break-word}.status-line{color:#fc0;margin-bottom:var(--spacing-sm);font-style:italic;padding:var(--spacing-xs) 0;border-bottom:1px solid rgba(255,255,255,.1)}.output-text{margin:0;white-space:pre-wrap;word-wrap:break-word;color:#d4d4d4}.no-output{color:#d4d4d480;font-style:italic;text-align:center;margin-top:var(--spacing-lg)}.console-output::-webkit-scrollbar{width:8px}.console-output::-webkit-scrollbar-track{background:#ffffff1a;border-radius:var(--border-radius)}.console-output::-webkit-scrollbar-thumb{background:#ffffff4d;border-radius:var(--border-radius)}.console-output::-webkit-scrollbar-thumb:hover{background:#ffffff80}.console-output .error{color:#f44336}.console-output .warning{color:#ff9800}.console-output .success{color:#4caf50}.console-output .info{color:#2196f3}@media(max-width:768px){.console-header{padding:var(--spacing-sm)}.console-header h4{font-size:.9rem}.console-output{font-size:.75rem;padding:var(--spacing-sm);line-height:1.3;max-height:150px}.clear-btn{font-size:.7rem;padding:4px 8px}}@media(max-width:480px){.console-output{font-size:.7rem;max-height:120px}.clear-btn{font-size:.65rem}}.code-editor-container{width:100%;height:100%;display:flex;flex-direction:column;background-color:var(--bg-secondary);border-radius:var(--border-radius);overflow:hidden;border:1px solid var(--border-color);box-sizing:border-box}.code-editor-controls{display:flex;justify-content:space-between;align-items:center;padding:var(--spacing-md);background-color:var(--bg-primary);border-bottom:1px solid var(--border-color);gap:var(--spacing-md);flex-wrap:wrap}.control-group{display:flex;gap:var(--spacing-sm);align-items:center}.btn-run{padding:var(--spacing-sm) var(--spacing-md);background:linear-gradient(135deg,#4caf50,#2e7d32);color:#fff;border:none;border-radius:var(--border-radius);cursor:pointer;font-size:14px;font-weight:500;transition:all var(--transition-speed);min-width:120px}.btn-run:hover:not(:disabled){background:linear-gradient(135deg,#66bb6a,#4caf50);transform:translateY(-2px);box-shadow:var(--shadow-md)}.btn-run:disabled{background:var(--color-gray);cursor:not-allowed;opacity:.7}.btn-clear{padding:var(--spacing-sm) var(--spacing-md);background:linear-gradient(135deg,#ff9800,#f57c00);color:#fff;border:none;border-radius:var(--border-radius);cursor:pointer;font-size:14px;font-weight:500;transition:all var(--transition-speed)}.btn-clear:hover{background:linear-gradient(135deg,#ffb74d,#ff9800);transform:translateY(-2px);box-shadow:var(--shadow-md)}.example-selector{padding:var(--spacing-sm) var(--spacing-md);border:1px solid var(--border-color);border-radius:var(--border-radius);background-color:var(--bg-secondary);color:var(--text-primary);font-size:14px;cursor:pointer;min-width:200px;transition:all var(--transition-speed)}.example-selector:hover{border-color:var(--primary-color)}.example-selector:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 2px rgba(var(--primary-color-rgb),.2)}.monaco-editor-container{flex:1;min-height:400px;width:100%;height:400px}@media(max-width:768px){.monaco-editor-container{min-height:300px;height:300px}.code-editor-controls{flex-direction:column;align-items:stretch;padding:var(--spacing-sm)}.control-group{flex-wrap:wrap;justify-content:center;margin-bottom:var(--spacing-sm)}.btn-run,.btn-clear{font-size:12px;padding:var(--spacing-xs) var(--spacing-sm);min-width:auto}.example-selector{min-width:auto;width:100%;font-size:12px}}@media(max-width:480px){.monaco-editor-container{min-height:250px;height:250px}.code-editor-controls{padding:var(--spacing-xs)}.btn-run,.btn-clear{font-size:11px;padding:6px 8px}}.video-stream-container{background-color:var(--bg-secondary);border-radius:var(--border-radius);padding:var(--spacing-md);border:1px solid var(--border-color);display:flex;flex-direction:column;gap:var(--spacing-md);width:100%;box-sizing:border-box}.stream-header{display:flex;justify-content:space-between;align-items:center;padding-bottom:var(--spacing-sm);border-bottom:1px solid var(--border-color)}.stream-header h3{margin:0;color:var(--text-primary);font-size:1.1rem}.connection-status{font-size:.9rem;font-weight:500;padding:var(--spacing-xs) var(--spacing-sm);border-radius:var(--border-radius)}.connection-status.connected{background-color:#4caf501a;color:#4caf50;border:1px solid rgba(76,175,80,.3)}.connection-status.disconnected{background-color:#f443361a;color:#f44336;border:1px solid rgba(244,67,54,.3)}.video-canvas{width:100%;max-width:320px;height:auto;border:2px solid var(--border-color);border-radius:var(--border-radius);background-color:#000;margin:0 auto;display:block}.stream-controls{display:flex;flex-direction:column;gap:var(--spacing-sm)}.board-selector{display:flex;flex-direction:column;gap:var(--spacing-xs)}.board-selector label{font-weight:500;color:var(--text-primary);font-size:.9rem}.board-selector select{padding:var(--spacing-sm);border:1px solid var(--border-color);border-radius:var(--border-radius);background-color:var(--bg-primary);color:var(--text-primary);font-size:.9rem;cursor:pointer;transition:all var(--transition-speed)}.board-selector select:hover{border-color:var(--primary-color)}.board-selector select:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 2px rgba(var(--primary-color-rgb),.2)}.audio-toggle{padding:var(--spacing-sm) var(--spacing-md);border:none;border-radius:var(--border-radius);font-size:.9rem;font-weight:500;cursor:pointer;transition:all var(--transition-speed);text-align:center}.audio-toggle.enabled{background:linear-gradient(135deg,#4caf50,#2e7d32);color:#fff}.audio-toggle.enabled:hover{background:linear-gradient(135deg,#66bb6a,#4caf50);transform:translateY(-2px);box-shadow:var(--shadow-md)}.audio-toggle.disabled{background:linear-gradient(135deg,#757575,#616161);color:#fff}.audio-toggle.disabled:hover{background:linear-gradient(135deg,#9e9e9e,#757575);transform:translateY(-2px);box-shadow:var(--shadow-md)}.audio-controls{display:flex;flex-direction:column;gap:var(--spacing-xs)}.audio-permission-warning{background:#ff98001a;border:1px solid rgba(255,152,0,.3);border-radius:var(--border-radius);padding:var(--spacing-sm);font-size:.8rem;color:#ff9800;display:flex;flex-direction:column;gap:var(--spacing-xs)}.permission-help-btn{background:none;border:1px solid #ff9800;color:#ff9800;border-radius:var(--border-radius);padding:var(--spacing-xs) var(--spacing-sm);font-size:.75rem;cursor:pointer;transition:all var(--transition-speed);align-self:flex-start}.permission-help-btn:hover{background:#ff98001a;transform:translateY(-1px)}.audio-status{background:#4caf501a;border:1px solid rgba(76,175,80,.3);border-radius:var(--border-radius);padding:var(--spacing-xs) var(--spacing-sm);font-size:.8rem;color:#4caf50;text-align:center}.audio-level{display:flex;flex-direction:column;gap:var(--spacing-xs)}.vumeter-container{width:100%;height:20px;background-color:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--border-radius);overflow:hidden;position:relative}.vumeter-bar{height:100%;background:linear-gradient(90deg,#4caf50,#8bc34a,#ffeb3b,#ff9800,#f44336);transition:width .1s ease;border-radius:var(--border-radius)}.audio-level-text{font-size:.8rem;color:var(--text-secondary);text-align:center}@media(max-width:768px){.stream-header{flex-direction:column;gap:var(--spacing-sm);align-items:stretch}.video-canvas{max-width:100%}}.activity-panel{background-color:var(--bg-secondary);border-radius:var(--border-radius);padding:var(--spacing-md);border:1px solid var(--border-color);display:flex;flex-direction:column;gap:var(--spacing-md);height:100%;overflow:hidden}.activity-header{text-align:center;padding-bottom:var(--spacing-sm);border-bottom:1px solid var(--border-color)}.activity-header h3{margin:0 0 var(--spacing-xs) 0;color:var(--text-primary);font-size:1.2rem}.activity-header p{margin:0;color:var(--text-secondary);font-size:.9rem}.activity-selector{display:flex;flex-direction:column;gap:var(--spacing-xs)}.activity-selector label{font-weight:500;color:var(--text-primary);font-size:.9rem}.activity-selector select{padding:var(--spacing-sm);border:1px solid var(--border-color);border-radius:var(--border-radius);background-color:var(--bg-primary);color:var(--text-primary);font-size:.9rem;cursor:pointer;transition:all var(--transition-speed)}.activity-selector select:hover{border-color:var(--primary-color)}.activity-selector select:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 2px rgba(var(--primary-color-rgb),.2)}.activity-info{display:flex;flex-direction:column;gap:var(--spacing-md)}.info-section{background-color:var(--bg-primary);padding:var(--spacing-md);border-radius:var(--border-radius);border:1px solid var(--border-color)}.experience-description{background:var(--bg-card);padding:1rem;border-radius:8px;border:1px solid var(--border-color);margin-bottom:1rem;line-height:1.6}.experience-description p{margin:.5rem 0;color:var(--text-primary)}.experience-description strong{color:var(--primary-color);font-weight:600}.experience-description a{color:var(--primary-color);text-decoration:none;border-bottom:1px solid var(--primary-color);transition:opacity .2s}.experience-description a:hover{opacity:.7}.experience-description ul,.experience-description ol{margin:.5rem 0;padding-left:1.5rem}.experience-description li{margin:.25rem 0;color:var(--text-primary)}.info-section h4{margin:0 0 var(--spacing-md) 0;color:var(--text-primary);font-size:1rem}.info-item{display:flex;flex-direction:column;gap:var(--spacing-xs);margin-bottom:var(--spacing-md)}.info-item:last-child{margin-bottom:0}.info-item strong{color:var(--text-primary);font-size:.9rem;font-weight:600}.info-item span{color:var(--text-secondary);font-size:.9rem;line-height:1.4}.tutorial-links{display:flex;flex-direction:column;gap:var(--spacing-xs)}.tutorial-links a{color:var(--primary-color);text-decoration:none;font-size:.9rem;transition:color var(--transition-speed)}.tutorial-links a:hover{color:var(--primary-color-hover);text-decoration:underline}.evaluate-btn{padding:var(--spacing-sm) var(--spacing-md);background:linear-gradient(135deg,var(--primary-color),var(--primary-color-hover));color:#fff;border:none;border-radius:var(--border-radius);cursor:pointer;font-size:.9rem;font-weight:500;transition:all var(--transition-speed);width:100%}.evaluate-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:var(--shadow-md)}.evaluate-btn:disabled{background:var(--color-gray);cursor:not-allowed;opacity:.7}.submit-btn{padding:var(--spacing-sm) var(--spacing-md);background:linear-gradient(135deg,#10b981,#059669);color:#fff;border:none;border-radius:var(--border-radius);cursor:pointer;font-size:.9rem;font-weight:500;transition:all var(--transition-speed);width:100%;display:flex;align-items:center;justify-content:center;gap:.5rem}.submit-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:var(--shadow-md);background:linear-gradient(135deg,#059669,#047857)}.submit-btn:disabled{background:var(--color-gray);cursor:not-allowed;opacity:.7;transform:none}.action-buttons{margin-top:var(--spacing-md);display:flex;flex-direction:column;gap:var(--spacing-sm)}.status-active{color:#10b981;font-weight:600}.objectives-list{color:var(--text-secondary);font-size:.9rem;line-height:1.6;margin-top:.25rem;padding-left:.5rem}.experience-details{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1rem;margin:1rem 0;padding:1rem;background:var(--bg-secondary);border-radius:var(--border-radius);border:1px solid var(--border-color)}.detail-item{display:flex;flex-direction:column;gap:.25rem}.detail-item strong{color:var(--text-primary);font-size:.85rem;font-weight:600}.detail-item span{color:var(--text-secondary);font-size:.9rem}@media(max-width:600px){.experience-details{grid-template-columns:1fr}}.evaluation-section{display:flex;flex-direction:column;gap:var(--spacing-sm);flex:1;min-height:0}.evaluation-header{display:flex;justify-content:space-between;align-items:center;padding-bottom:var(--spacing-xs);border-bottom:1px solid var(--border-color)}.evaluation-header h4{margin:0;color:var(--text-primary);font-size:1rem}.clear-logs-btn{padding:var(--spacing-xs) var(--spacing-sm);background:linear-gradient(135deg,#ff9800,#f57c00);color:#fff;border:none;border-radius:var(--border-radius);cursor:pointer;font-size:.8rem;transition:all var(--transition-speed)}.clear-logs-btn:hover{transform:translateY(-1px);box-shadow:var(--shadow-sm)}.evaluation-logs{flex:1;background-color:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--border-radius);padding:var(--spacing-sm);overflow-y:auto;max-height:300px;min-height:150px}.no-logs{color:var(--text-secondary);font-style:italic;text-align:center;margin:var(--spacing-md) 0}.log-entry{display:flex;justify-content:space-between;align-items:flex-start;padding:var(--spacing-xs) var(--spacing-sm);margin-bottom:var(--spacing-xs);border-radius:var(--border-radius);font-size:.85rem;line-height:1.4}.log-entry:last-child{margin-bottom:0}.log-entry.info{background-color:#2196f31a;border-left:3px solid #2196f3;color:var(--text-primary)}.log-entry.success{background-color:#4caf501a;border-left:3px solid #4caf50;color:#2e7d32}.log-entry.error{background-color:#f443361a;border-left:3px solid #f44336;color:#c62828}.log-message{flex:1;margin-right:var(--spacing-sm)}.log-timestamp{color:var(--text-secondary);font-size:.75rem;white-space:nowrap}@media(max-width:768px){.evaluation-logs{max-height:200px;min-height:120px}.log-entry{flex-direction:column;gap:var(--spacing-xs)}.log-timestamp{align-self:flex-end}}:root{--spacing-xs: .5rem;--spacing-sm: 1rem;--spacing-md: 1.5rem;--spacing-lg: 2rem;--spacing-xl: 3rem;--font-family: system-ui, Avenir, Helvetica, Arial, sans-serif;--font-family-mono: ui-monospace, "SF Mono", "Cascadia Code", "Fira Code", Menlo, Consolas, monospace;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 1.875rem;--border-radius: 8px;--max-width: 1400px;--transition: all .3s ease;--transition-speed: .3s;--color-gray: #9e9e9e;--header-bg: #0d1117;--header-bg-light: #16202c;--header-text: #ffffff;--header-accent: #3b82f6;--footer-bg: #090c10;--footer-bg-secondary: #16202c;--footer-text: #ecf0f1;--footer-accent: #3b82f6;--header-accent-rgb: 59, 130, 246;--shadow-sm: var(--shadow);--shadow-md: var(--shadow-lg)}[data-theme=light]{--primary-color: #2f6fed;--primary-dark: #1d4fc4;--secondary-color: #45566b;--accent-color: #e14444;--success-color: #16a34a;--warning-color: #d97706;--text-primary: #131c2b;--text-secondary: #5b6b7f;--text-inverse: #ffffff;--bg-primary: #ffffff;--bg-secondary: #eef2f7;--bg-tertiary: #f5f8fc;--bg-inverse: #131c2b;--border-color: #dde4ec;--shadow: 0 2px 4px rgba(0, 0, 0, .1);--shadow-lg: 0 4px 8px rgba(0, 0, 0, .15);--shadow-hover: 0 6px 12px rgba(0, 0, 0, .2);--bg-card: var(--bg-secondary);--color-bg-secondary: var(--bg-secondary);--color-bg-tertiary: var(--bg-tertiary);--color-text-primary: var(--text-primary);--color-text-secondary: var(--text-secondary);--color-text-muted: var(--text-secondary);--color-border: var(--border-color);--color-secondary: var(--secondary-color);--color-secondary-light: rgba(69, 86, 107, .1);--primary-color-hover: var(--primary-dark);--secondary-color-hover: #37455a;--status-online: var(--success-color);--status-error: var(--accent-color);--primary-color-rgb: 47, 111, 237;--color-primary-rgb: var(--primary-color-rgb);--accent-color-rgb: 225, 68, 68;--success-color-rgb: 22, 163, 74;--warning-color-rgb: 217, 119, 6}[data-theme=dark]{--primary-color: #3b82f6;--primary-dark: #2563eb;--secondary-color: #3d4d5f;--accent-color: #f87171;--success-color: #4ade80;--warning-color: #fbbf24;--text-primary: #eef2f7;--text-secondary: #93a1b1;--text-inverse: #0d1117;--bg-primary: #0d1117;--bg-secondary: #151b23;--bg-tertiary: #1c2530;--bg-inverse: #eef2f7;--border-color: #2a3441;--shadow: 0 2px 4px rgba(0, 0, 0, .3);--shadow-lg: 0 4px 8px rgba(0, 0, 0, .4);--shadow-hover: 0 6px 12px rgba(0, 0, 0, .5);--bg-card: var(--bg-secondary);--color-bg-secondary: var(--bg-secondary);--color-bg-tertiary: var(--bg-tertiary);--color-text-primary: var(--text-primary);--color-text-secondary: var(--text-secondary);--color-text-muted: var(--text-secondary);--color-border: var(--border-color);--color-secondary: var(--secondary-color);--color-secondary-light: rgba(61, 77, 95, .15);--primary-color-hover: var(--primary-dark);--secondary-color-hover: #4e6070;--status-online: var(--success-color);--status-error: var(--accent-color);--primary-color-rgb: 59, 130, 246;--color-primary-rgb: var(--primary-color-rgb);--accent-color-rgb: 248, 113, 113;--success-color-rgb: 74, 222, 128;--warning-color-rgb: 251, 191, 36}.lab-container{max-width:1400px;margin:0 auto;padding:var(--spacing-lg);color:var(--text-primary);width:100%;box-sizing:border-box;overflow-x:hidden}.mqtt-warning-banner{margin-bottom:1rem;padding:.75rem 1rem;border-radius:8px;background:#ff980026;border:1px solid #ff9800;color:var(--text-primary);font-size:.9rem}.work-mode-toggle{display:flex;gap:.5rem;margin-bottom:1rem;background:var(--bg-card);padding:.5rem;border-radius:12px;border:1px solid var(--border-color)}.mode-button{flex:1;padding:.75rem 1.5rem;border:2px solid var(--border-color);border-radius:8px;background:var(--bg-primary);color:var(--text-secondary);font-size:1rem;font-weight:500;cursor:pointer;transition:all .3s ease}.mode-button:hover{background:var(--bg-card);border-color:var(--primary-color);color:var(--text-primary);transform:translateY(-2px)}.mode-button.active{background:var(--primary-color);color:#fff;border-color:var(--primary-color);box-shadow:0 4px 12px #0066cc4d}.control-section{display:flex;flex-direction:column;gap:1rem;height:100%;overflow-y:auto}.control-header{background:var(--bg-card);padding:1.5rem;border-radius:12px;border:1px solid var(--border-color)}.control-header h3{margin:0 0 .5rem;color:var(--text-primary);font-size:1.3rem}.control-subtitle{margin:0;color:var(--text-secondary);font-size:.9rem}.actuators-panel{background:var(--bg-card);padding:1.5rem;border-radius:12px;border:1px solid var(--border-color)}.actuators-panel h4{margin:0 0 1rem;color:var(--text-primary);font-size:1.1rem;padding-bottom:.5rem;border-bottom:2px solid var(--border-color)}.actuator-group{margin-bottom:1rem;padding-bottom:1rem;border-bottom:1px solid var(--border-color)}.actuator-group:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}.actuator-group label{display:block;margin-bottom:.5rem;color:var(--text-primary);font-weight:500;font-size:.95rem}.button-group{display:flex;gap:.5rem}.actuator-btn{flex:1;padding:.75rem;border:2px solid var(--border-color);border-radius:8px;background:var(--bg-primary);color:var(--text-primary);font-size:.95rem;font-weight:600;cursor:pointer;transition:all .2s ease}.actuator-btn:hover{background:var(--bg-card);border-color:var(--primary-color);transform:translateY(-2px)}.actuator-btn.active{background:var(--primary-color);color:#fff;border-color:var(--primary-color);box-shadow:0 2px 8px #0066cc4d}.servo-group{background:var(--bg-primary);padding:1rem;border-radius:8px}.servo-controls{display:flex;align-items:center;gap:1rem;margin-bottom:.75rem}.servo-slider{flex:1;height:6px;border-radius:3px;background:var(--border-color);outline:none;-webkit-appearance:none}.servo-slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:20px;height:20px;border-radius:50%;background:var(--primary-color);cursor:pointer;box-shadow:0 2px 4px #0003}.servo-slider::-moz-range-thumb{width:20px;height:20px;border-radius:50%;background:var(--primary-color);cursor:pointer;border:none;box-shadow:0 2px 4px #0003}.servo-value{min-width:50px;text-align:center;font-weight:600;color:var(--primary-color);font-size:1.1rem}.servo-presets{display:flex;gap:.5rem;flex-wrap:wrap}.preset-btn{padding:.5rem 1rem;border:1px solid var(--border-color);border-radius:6px;background:var(--bg-primary);color:var(--text-primary);font-size:.85rem;font-weight:500;cursor:pointer;transition:all .2s ease}.preset-btn:hover{background:var(--primary-color);color:#fff;border-color:var(--primary-color)}.reset-all-btn{width:100%;padding:.75rem;margin-top:1rem;border:2px solid #ef4444;border-radius:8px;background:var(--bg-primary);color:#ef4444;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s ease}.reset-all-btn:hover{background:#ef4444;color:#fff}.sensors-panel{background:var(--bg-card);padding:1.5rem;border-radius:12px;border:1px solid var(--border-color)}.sensors-panel h4{margin:0 0 1rem;color:var(--text-primary);font-size:1.1rem;padding-bottom:.5rem;border-bottom:2px solid var(--border-color)}.sensors-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:1rem;margin-bottom:1rem}.sensor-card{background:var(--bg-primary);padding:1rem;border-radius:8px;border:1px solid var(--border-color);display:flex;flex-direction:column;gap:.5rem;transition:all .2s ease}.sensor-card:hover{border-color:var(--primary-color);box-shadow:0 2px 8px #06c3}.sensor-icon{font-size:2rem;text-align:center}.sensor-name{font-size:.85rem;color:var(--text-secondary);font-weight:500;text-align:center}.sensor-value{font-size:1.1rem;color:var(--primary-color);font-weight:600;text-align:center;min-height:30px}.read-btn{padding:.5rem;border:1px solid var(--border-color);border-radius:6px;background:var(--bg-primary);color:var(--text-primary);font-size:.85rem;cursor:pointer;transition:all .2s ease}.read-btn:hover{background:var(--primary-color);color:#fff;border-color:var(--primary-color)}.read-all-btn{width:100%;padding:.75rem;margin-top:1rem;border:2px solid var(--primary-color);border-radius:8px;background:var(--bg-primary);color:var(--primary-color);font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s ease}.read-all-btn:hover{background:var(--primary-color);color:#fff}.lab-header{display:flex;justify-content:space-between;align-items:center;background:var(--bg-card);border:1px solid var(--border-color);border-radius:12px;padding:1.5rem;margin-bottom:var(--spacing-lg);border-left:4px solid var(--status-online)}.turno-info h2{color:var(--text-primary);margin:0 0 .5rem;font-size:1.4rem;font-weight:600}.turno-info p{color:var(--text-secondary);margin:0;font-size:.95rem}.tiempo-restante{display:flex;align-items:center;gap:.5rem;margin-top:.75rem;padding:.5rem 1rem;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:8px;font-size:.9rem}.timer-label{color:var(--text-secondary);font-weight:500}.timer-value{color:var(--status-online);font-weight:600;font-family:Courier New,monospace;background:#22c55e1a;padding:.25rem .5rem;border-radius:4px;border:1px solid rgba(34,197,94,.2);min-width:80px;text-align:center}.timer-value.finalizado{color:var(--status-error);background:#ef44441a;border-color:#ef444433;animation:parpadeo 1s infinite}@keyframes parpadeo{0%,50%{opacity:1}51%,to{opacity:.5}}.lab-actions{flex-shrink:0}.lab-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:60vh;text-align:center;background:var(--bg-card);border-radius:12px;margin:2rem auto;max-width:500px;padding:3rem}.lab-loading h2{color:var(--text-primary);margin-bottom:1rem;font-size:1.5rem}.lab-loading p{color:var(--text-secondary);font-size:1.1rem;margin:0}.lab-title{text-align:center;color:var(--text-primary);margin-bottom:var(--spacing-lg);font-size:2rem;background:linear-gradient(135deg,var(--primary-color),var(--primary-color-hover));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.lab-layout{display:grid;grid-template-columns:1fr 400px;gap:var(--spacing-lg);margin-bottom:var(--spacing-xl);min-height:80vh}.lab-left-column,.lab-right-column{display:flex;flex-direction:column;gap:var(--spacing-md);min-height:0}.editor-section{flex:0 0 500px;height:500px;overflow:hidden}.output-section{flex:0 0 300px;height:300px;overflow:hidden}.video-section{flex:0 0 auto}.activity-section{flex:1;min-height:0;overflow:hidden}.lab-section{margin-bottom:var(--spacing-lg)}.lab-section h3{color:var(--text-primary);margin-bottom:var(--spacing-sm);border-bottom:2px solid var(--primary-color);padding-bottom:var(--spacing-xs);display:flex;align-items:center;gap:var(--spacing-sm)}.lab-section h3:before{content:"🔬";font-size:1.2em}.lab-description{color:var(--text-secondary);margin-bottom:var(--spacing-lg);font-size:var(--font-size-base);line-height:1.6;text-align:center;max-width:600px;margin-left:auto;margin-right:auto}@media(max-width:1200px){.lab-layout{grid-template-columns:1fr 350px}}@media(max-width:992px){.lab-layout{display:flex;flex-direction:column;gap:var(--spacing-md);min-height:auto}.lab-right-column{order:-1}.lab-left-column{order:1}.editor-section{flex:0 0 400px;height:400px}.output-section{flex:0 0 250px;height:250px}}@media(max-width:768px){.lab-container{padding:var(--spacing-sm);width:100%;max-width:100%;margin:0}.lab-layout{display:flex;flex-direction:column;min-height:auto;gap:var(--spacing-sm);width:100%}.lab-header{flex-direction:column;gap:1rem;text-align:center;padding:1rem;width:100%}.turno-info h2{font-size:1.1rem;line-height:1.3}.turno-info p{font-size:.85rem}.lab-title{font-size:1.5rem}.lab-section h3{font-size:1.2rem}.lab-left-column,.lab-right-column{width:100%;gap:var(--spacing-sm)}.lab-right-column{order:-1}.lab-left-column{order:1}.editor-section{flex:0 0 300px;height:300px;width:100%}.output-section{flex:0 0 200px;height:200px;width:100%}}@media(max-width:480px){.lab-container{padding:var(--spacing-xs)}.lab-header{padding:.75rem}.turno-info h2{font-size:1rem}.turno-info p{font-size:.8rem}.editor-section{flex:0 0 250px;height:250px}.output-section{flex:0 0 150px;height:150px}}.turno-card{background:var(--bg-card);border-radius:12px;border:1px solid var(--border-color);padding:1.5rem;transition:all .3s ease;position:relative;overflow:hidden}.turno-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;transition:background-color .3s ease}.turno-card.activo:before{background:var(--status-online)}.turno-card.proximo:before{background:var(--warning-color)}.turno-card.pasado:before{background:var(--text-secondary)}.turno-card:hover{transform:translateY(-2px);box-shadow:0 8px 25px #0000001a}.turno-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.turno-estado{display:flex;align-items:center;gap:.5rem;padding:.4rem .8rem;border-radius:20px;font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.turno-card.activo .turno-estado{background:rgba(var(--success-color-rgb),.1);color:var(--status-online)}.turno-card.proximo .turno-estado{background:rgba(var(--warning-color-rgb),.1);color:var(--warning-color)}.turno-card.pasado .turno-estado{background:#9ca3af1a;color:var(--text-secondary)}.status-dot{width:8px;height:8px;border-radius:50%;background:currentColor;flex-shrink:0}.btn-cancelar{background:none;border:none;cursor:pointer;font-size:1rem;opacity:.7;transition:opacity .3s ease;padding:.25rem;border-radius:4px}.btn-cancelar:hover{opacity:1;background:#ff00001a}.turno-content{margin-bottom:1.5rem}.turno-nombre{color:var(--text-primary);font-size:1.2rem;font-weight:600;margin:0 0 1rem;line-height:1.4}.turno-info{display:flex;flex-direction:column;gap:.8rem}.info-item{display:flex;align-items:center;gap:.5rem;color:var(--text-secondary);font-size:.95rem}.info-item.estado-descripcion{font-style:italic;margin-top:.3rem}.info-icon{font-size:1rem;width:20px;text-align:center}.info-text{flex:1}.turno-actions{margin-top:1.5rem;padding-top:1rem;border-top:1px solid var(--border-color)}.btn-acceder-lab{width:100%;font-weight:600;font-size:1rem;padding:.8rem;background:var(--status-online);color:#fff;border:none;border-radius:8px;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;justify-content:center;gap:.5rem}.btn-acceder-lab:hover{filter:brightness(.9);transform:translateY(-1px)}.turno-pending,.turno-completed{text-align:center;padding:.8rem;border-radius:8px;font-size:.9rem}.turno-pending{background:rgba(var(--warning-color-rgb),.1);color:var(--warning-color);border:1px solid rgba(var(--warning-color-rgb),.2)}.turno-completed{background:#9ca3af1a;color:var(--text-secondary);border:1px solid rgba(156,163,175,.2)}.turno-pending p,.turno-completed p{margin:0;font-weight:500}.turno-card.activo:hover{border-color:var(--status-online)}.turno-card.proximo:hover{border-color:var(--warning-color)}.turno-card.pasado:hover{border-color:var(--text-secondary)}@media(max-width:480px){.turno-card{padding:1rem}.turno-nombre{font-size:1.1rem}.info-item{font-size:.9rem}.btn-acceder-lab{font-size:.95rem;padding:.7rem}}.turnos-container{max-width:1200px;margin:0 auto;padding:2rem}.turnos-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:3rem;flex-wrap:wrap;gap:1rem}.turnos-title{color:var(--text-primary);font-size:2.5rem;font-weight:700;margin:0}.btn-agregar-turno{font-size:1rem;padding:.75rem 1.5rem;border-radius:8px;display:flex;align-items:center;gap:.5rem}.turnos-section{margin-bottom:3rem}.section-title{font-size:1.5rem;font-weight:600;margin-bottom:1.5rem;display:flex;align-items:center;gap:.5rem}.section-title.activo{color:var(--status-online)}.section-title.proximo{color:var(--warning-color)}.section-title.pasado{color:var(--text-secondary)}.section-title .status-dot{width:10px;height:10px}.turnos-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:1.5rem}.no-turnos{text-align:center;padding:4rem 2rem;background:var(--bg-card);border-radius:12px;border:2px dashed var(--border-color)}.no-turnos h3{color:var(--text-primary);font-size:1.5rem;margin-bottom:1rem}.no-turnos p{color:var(--text-secondary);font-size:1.1rem}.turnos-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:60vh;text-align:center;background:var(--bg-card);border-radius:12px;margin:2rem auto;max-width:500px;padding:3rem}.turnos-loading h2{color:var(--text-primary);margin-bottom:1rem;font-size:1.5rem}.turnos-loading p{color:var(--text-secondary);font-size:1.1rem;margin:0}.turnos-error{background:rgba(var(--accent-color-rgb),.1);border:1px solid rgba(var(--accent-color-rgb),.3);border-radius:8px;padding:1rem;margin-bottom:2rem;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:1rem}.turnos-error p{color:var(--accent-color);margin:0;font-weight:500}.btn-retry{font-size:.9rem;padding:.5rem 1rem}@media(max-width:768px){.turnos-container{padding:1rem}.turnos-header{flex-direction:column;align-items:stretch;text-align:center}.turnos-title{font-size:2rem}.turnos-grid{grid-template-columns:1fr}}@media(max-width:480px){.turnos-title{font-size:1.8rem}.section-title{font-size:1.3rem}}.evaluation-modal-overlay{position:fixed;inset:0;background-color:#000000b3;display:flex;justify-content:center;align-items:center;z-index:1000;padding:20px}.evaluation-modal{--card-background: #eef2f7;--code-background: #f5f8fc;background-color:var(--background-color);border-radius:12px;width:90%;max-width:1200px;max-height:90vh;overflow-y:auto;box-shadow:0 10px 30px #0000004d;animation:modalSlideIn .3s ease-out}@keyframes modalSlideIn{0%{opacity:0;transform:scale(.9) translateY(-20px)}to{opacity:1;transform:scale(1) translateY(0)}}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:20px 30px;border-bottom:2px solid var(--border-color);background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:#fff;border-radius:12px 12px 0 0}.modal-header h2{margin:0;font-size:1.5rem;font-weight:600}.close-btn{background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer;padding:5px 10px;border-radius:50%;transition:all .2s ease}.close-btn:hover{background-color:#fff3;transform:scale(1.1)}.modal-content{padding:30px}.evaluation-info{margin-bottom:30px}.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px;margin-bottom:20px}.info-card{background:var(--card-background);border:1px solid var(--border-color);border-radius:8px;padding:20px;box-shadow:0 2px 4px #0000001a}.info-card h3{margin:0 0 15px;color:var(--primary-color);font-size:1.1rem;font-weight:600;border-bottom:2px solid var(--border-color);padding-bottom:8px}.info-card p{margin:8px 0;color:var(--text-color)}.info-card strong{color:var(--primary-color);font-weight:600}.code-section{margin-bottom:30px}.code-section h3{margin:0 0 15px;color:var(--primary-color);font-size:1.3rem;font-weight:600}.code-container{border:2px solid var(--border-color);border-radius:8px;background:var(--code-background, #f8f9fa);max-height:400px;overflow-y:auto}.loading-code{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px;color:var(--text-secondary)}.loading-spinner{width:30px;height:30px;border:3px solid var(--border-color);border-top:3px solid var(--primary-color);border-radius:50%;animation:spin 1s linear infinite;margin-bottom:10px}.code-display{margin:0;padding:20px;font-family:Consolas,Monaco,Courier New,monospace;font-size:14px;line-height:1.5;color:var(--text-color);background:transparent;overflow-x:auto;white-space:pre-wrap;word-wrap:break-word}.grading-form{background:var(--card-background);border:2px solid var(--primary-color);border-radius:8px;padding:25px;margin-bottom:20px}.grading-form h3{margin:0 0 20px;color:var(--primary-color);font-size:1.3rem;font-weight:600}.form-group{margin-bottom:20px}.form-group label{display:block;margin-bottom:8px;font-weight:600;color:var(--text-color)}.current-grade{font-size:.9rem;margin-left:10px;padding:2px 8px;border-radius:4px;font-weight:400}.current-grade.excellent{background-color:var(--color-success-light);color:var(--color-success)}.current-grade.good{background-color:var(--color-primary-light);color:var(--color-primary)}.current-grade.fair{background-color:var(--color-warning-light);color:var(--color-warning)}.current-grade.poor{background-color:var(--color-error-light);color:var(--color-error)}.grade-input{width:150px;padding:10px;border:2px solid var(--border-color);border-radius:6px;font-size:1.1rem;text-align:center;font-weight:600}.grade-input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px rgba(var(--primary-color-rgb),.1)}.feedback-textarea{width:100%;padding:12px;border:2px solid var(--border-color);border-radius:6px;font-family:inherit;font-size:1rem;resize:vertical;min-height:100px}.feedback-textarea:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px rgba(var(--primary-color-rgb),.1)}.form-actions{display:flex;gap:15px;justify-content:flex-end;margin-top:25px;padding-top:20px;border-top:2px solid var(--border-color)}.btn-secondary,.btn-primary{padding:12px 25px;border:none;border-radius:6px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s ease;display:flex;align-items:center;gap:8px}.btn-secondary{background-color:var(--secondary-color, #6c757d);color:#fff}.btn-secondary:hover:not(:disabled){background-color:var(--secondary-color-hover);transform:translateY(-1px)}.btn-primary{background-color:var(--primary-color);color:#fff}.btn-primary:hover:not(:disabled){background-color:var(--primary-color-hover);transform:translateY(-1px)}.btn-secondary:disabled,.btn-primary:disabled{opacity:.6;cursor:not-allowed;transform:none}.previous-grading{background:var(--card-background);border:1px solid var(--border-color);border-radius:8px;padding:20px;margin-top:20px}.previous-grading h3{margin:0 0 15px;color:var(--primary-color);font-size:1.1rem;font-weight:600}.previous-info p{margin:8px 0;color:var(--text-color)}.grade-display{font-size:1.1rem;font-weight:700;padding:2px 8px;border-radius:4px}.grade-display.excellent{background-color:var(--color-success-light);color:var(--color-success)}.grade-display.good{background-color:var(--color-primary-light);color:var(--color-primary)}.grade-display.fair{background-color:var(--color-warning-light);color:var(--color-warning)}.grade-display.poor{background-color:var(--color-error-light);color:var(--color-error)}.previous-feedback{margin-top:10px;padding:10px;background:var(--background-color);border-left:4px solid var(--primary-color);border-radius:4px}.previous-feedback p{margin:5px 0 0;font-style:italic;color:var(--text-secondary)}@media(max-width:768px){.evaluation-modal{width:95%;margin:10px}.modal-content{padding:20px}.info-grid{grid-template-columns:1fr;gap:15px}.form-actions{flex-direction:column}.btn-secondary,.btn-primary{width:100%;justify-content:center}}[data-theme=dark] .evaluation-modal{--card-background: #151b23;--code-background: #1c2530}.admin-page{min-height:100vh;background:var(--background-color);color:var(--text-color);padding:2rem}.admin-header{margin-bottom:2rem;padding:1.5rem;background:var(--background-secondary);border-radius:12px;box-shadow:0 4px 6px #0000001a}.admin-header-content{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem}.admin-title-section{flex:1}.admin-header h1{margin:0 0 .5rem;color:var(--color-primary);font-size:2rem;font-weight:600}.admin-labs-subtitle{margin-top:.5rem}.labs-label{color:var(--text-color);font-size:.9rem;font-weight:500;margin-right:.5rem}.labs-list{display:inline-flex;flex-wrap:wrap;align-items:center;gap:.25rem}.lab-name{color:var(--color-primary);font-size:.9rem;font-weight:600;background:var(--color-primary-light);padding:.25rem .5rem;border-radius:6px;display:inline-block}.lab-separator{color:var(--text-color);margin:0 .25rem}.loading-labs{color:var(--text-color);font-size:.9rem;font-style:italic}.no-labs{color:var(--color-warning);font-size:.9rem;font-style:italic}.iot-lab{background:linear-gradient(135deg,var(--color-primary),var(--color-primary-dark));color:#fff;font-weight:700;padding:.5rem 1rem;border-radius:8px;border:2px solid var(--color-primary-light);box-shadow:0 2px 4px rgba(var(--primary-color-rgb),.3)}.lab-filter-note{margin-top:.5rem}.lab-filter-note small{color:var(--text-color);opacity:.7;font-size:.8rem;font-style:italic}.alert{padding:1rem;border-radius:8px;margin-bottom:1rem;display:flex;align-items:center;gap:.5rem;font-weight:500}.alert-success{background-color:var(--color-success-light);color:var(--color-success);border:1px solid var(--color-success)}.alert-error{background-color:var(--color-error-light);color:var(--color-error);border:1px solid var(--color-error)}.mode-selector{background:var(--background-color);padding:1.5rem;border-radius:12px;border:1px solid var(--border-color);margin-bottom:1.5rem;box-shadow:0 2px 8px #0000000d}.mode-selector h3{margin:0 0 1rem;color:var(--text-color);font-size:1.1rem;display:flex;align-items:center;gap:.5rem}.mode-options{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.mode-option{display:flex;flex-direction:column;padding:1rem;border:2px solid var(--border-color);border-radius:8px;cursor:pointer;transition:all .3s ease;background:var(--background-secondary)}.mode-option:hover{border-color:var(--color-primary);background:var(--background-color)}.mode-option.active{border-color:var(--color-primary);background:linear-gradient(135deg,var(--color-primary-light),rgba(59,130,246,.1));box-shadow:0 4px 12px #3b82f633}.mode-option input[type=radio]{display:none}.mode-label{font-weight:600;color:var(--text-color);margin-bottom:.25rem;display:flex;align-items:center;gap:.5rem}.mode-option small{color:var(--text-secondary);font-size:.85rem}.mode-option.active .mode-label{color:var(--color-primary)}@media(max-width:600px){.mode-options{grid-template-columns:1fr}}.create-shift-form{background:var(--background-color);padding:1.5rem;border-radius:12px;border:1px solid var(--border-color);box-shadow:0 2px 8px #0000001a}.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem;margin-bottom:2rem}@media(min-width:900px){.form-grid{grid-template-columns:1fr 1fr 2fr}}.form-group label{font-weight:600;color:var(--text-color);display:flex;align-items:center;gap:.5rem}.form-group input,.form-group select{padding:.75rem;border:2px solid var(--border-color);border-radius:8px;font-size:1rem;transition:border-color .3s ease;background:var(--background-color);color:var(--text-color)}.form-group input:focus,.form-group select:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #3b82f61a}.form-group input:disabled,.form-group select:disabled{opacity:.6;cursor:not-allowed;background-color:var(--background-secondary)}.form-help{font-size:.85rem;color:var(--text-secondary);font-style:italic}.text-warning{color:var(--color-warning)}.text-error{color:var(--color-error)}.text-success{color:var(--color-success)}.settings-card{max-width:480px;padding:1.5rem;border-radius:12px;border:1px solid var(--border-color);background:var(--bg-card)}.settings-help{color:var(--text-secondary);font-size:.9rem;margin-bottom:1rem}.settings-form{margin-top:1rem;display:flex;flex-direction:column;gap:1rem}.time-invalid{border-color:var(--color-error)!important;box-shadow:0 0 0 3px var(--color-error-light)!important}.error-indicator{color:var(--color-error);font-weight:600}.shift-preview{background:linear-gradient(135deg,var(--color-primary-light),var(--color-secondary-light));padding:1.5rem;border-radius:12px;margin:2rem 0;border:2px solid var(--color-primary)}.shift-preview h3{margin:0 0 1rem;color:var(--color-primary);font-size:1.2rem;display:flex;align-items:center;gap:.5rem}.preview-details{display:grid;gap:.75rem}.preview-item{display:flex;justify-content:space-between;align-items:center;padding:.5rem;background:#fffc;border-radius:6px;border:1px solid rgba(59,130,246,.2)}.preview-label{font-weight:600;color:var(--text-color);display:flex;align-items:center;gap:.25rem}.preview-value{font-weight:500;color:var(--text-color)}.preview-value.available{color:var(--color-success)}.preview-value.unavailable{color:var(--color-error)}.form-actions{display:flex;gap:1rem;justify-content:flex-end;margin-top:2rem;padding-top:1.5rem;border-top:1px solid var(--border-color)}.btn-primary,.btn-secondary{padding:.75rem 1.5rem;border-radius:8px;font-weight:600;font-size:1rem;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;gap:.5rem;border:none}.btn-primary{background:linear-gradient(135deg,var(--color-primary),var(--color-primary-dark));color:#fff;box-shadow:0 4px 12px rgba(var(--primary-color-rgb),.3)}.btn-primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 16px #3b82f666}.btn-primary:disabled{opacity:.6;cursor:not-allowed;transform:none;box-shadow:none}.btn-secondary{background:var(--background-secondary);color:var(--text-color);border:2px solid var(--border-color)}.btn-secondary:hover:not(:disabled){background:var(--color-secondary-light);border-color:var(--color-secondary)}.btn-secondary:disabled{opacity:.6;cursor:not-allowed}.spinner{animation:spin 1s linear infinite}.admin-user-info{display:flex;flex-direction:column;align-items:flex-end;gap:.5rem}.admin-user-info span{font-size:.9rem;color:var(--text-color)}.user-role{background:var(--color-primary);color:#fff;padding:.25rem .75rem;border-radius:20px;font-size:.8rem;font-weight:500;text-transform:capitalize}.admin-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:50vh;gap:1rem}.loading-spinner{width:40px;height:40px;border:4px solid #f3f3f3;border-top:4px solid var(--color-primary);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.admin-tabs{display:flex;gap:.5rem;margin-bottom:2rem;background:var(--background-secondary);padding:.5rem;border-radius:12px;box-shadow:0 2px 4px #0000001a}.tab-button{background:transparent;border:none;padding:.75rem 1.5rem;border-radius:8px;color:var(--text-color);cursor:pointer;transition:all .3s ease;font-weight:500;font-size:.9rem}.tab-button:hover{background:var(--color-primary-light);color:var(--color-primary)}.tab-button.active{background:var(--color-primary);color:#fff;box-shadow:0 2px 4px #0003}.admin-content{background:var(--background-secondary);border-radius:12px;padding:2rem;box-shadow:0 4px 6px #0000001a}.overview-section h2{margin:0 0 2rem;color:var(--color-primary);font-size:1.5rem}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem}.stat-card{background:var(--background-color);padding:1.5rem;border-radius:12px;text-align:center;box-shadow:0 2px 4px #0000001a;border:1px solid var(--border-color);transition:transform .3s ease}.stat-card:hover{transform:translateY(-2px)}.stat-card h3{margin:0 0 1rem;color:var(--text-color);font-size:1rem;font-weight:500}.stat-number{font-size:2.5rem;font-weight:700;color:var(--color-primary)}.experiences-section h2{margin:0 0 2rem;color:var(--color-primary);font-size:1.5rem}.experiences-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:1.5rem}.experience-card{background:var(--background-color);padding:1.5rem;border-radius:12px;box-shadow:0 2px 4px #0000001a;border:1px solid var(--border-color);transition:transform .3s ease}.experience-card:hover{transform:translateY(-2px)}.experience-card h3{margin:0 0 1rem;color:var(--color-primary);font-size:1.1rem}.experience-details p{margin:.5rem 0;color:var(--text-color);font-size:.9rem}.experience-actions{display:flex;gap:.5rem;margin-top:1rem}.shifts-section h2{margin:0 0 2rem;color:var(--color-primary);font-size:1.5rem}.shifts-table{overflow-x:auto}.shifts-table table{width:100%;border-collapse:collapse;background:var(--background-color);border-radius:12px;overflow:hidden;box-shadow:0 2px 4px #0000001a}.shifts-table th,.shifts-table td{padding:1rem;text-align:left;border-bottom:1px solid var(--border-color)}.shifts-table th{background:var(--color-primary);color:#fff;font-weight:600}.shifts-table tr:hover{background:var(--background-secondary)}.quota-indicator{padding:.25rem .5rem;border-radius:12px;font-size:.8rem;font-weight:500;background:var(--color-success-light);color:var(--color-success)}.quota-indicator.full{background:var(--color-warning-light);color:var(--color-warning)}.status-badge{padding:.25rem .75rem;border-radius:20px;font-size:.8rem;font-weight:500}.status-badge.available{background:var(--color-success-light);color:var(--color-success)}.status-badge.unavailable{background:var(--color-error-light);color:var(--color-error)}.actions{display:flex;gap:.5rem}.create-shift-section h2{margin:0 0 2rem;color:var(--color-primary);font-size:1.5rem}.create-shift-form{background:var(--background-color);padding:2rem;border-radius:12px;box-shadow:0 2px 4px #0000001a;border:1px solid var(--border-color)}.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem;margin-bottom:2rem}.form-group{display:flex;flex-direction:column;gap:.5rem}.form-group label{font-weight:500;color:var(--text-color);font-size:.9rem}.form-group input,.form-group select{padding:.75rem;border:1px solid var(--border-color);border-radius:8px;background:var(--background-secondary);color:var(--text-color);font-size:.9rem;transition:border-color .3s ease}.form-group input:focus,.form-group select:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-light)}.shift-preview{background:var(--background-secondary);padding:1.5rem;border-radius:12px;margin-bottom:2rem;border:1px solid var(--border-color)}.shift-preview h3{margin:0 0 1rem;color:var(--color-primary);font-size:1.1rem}.preview-details p{margin:.5rem 0;color:var(--text-color);font-size:.9rem}.form-actions{display:flex;gap:1rem;justify-content:flex-end}.btn-primary{background:var(--color-primary);color:#fff;border:none;padding:.75rem 1.5rem;border-radius:8px;cursor:pointer;font-weight:500;transition:all .3s ease}.btn-primary:hover{background:var(--color-primary-dark);transform:translateY(-1px)}.btn-secondary{background:transparent;color:var(--color-primary);border:1px solid var(--color-primary);padding:.75rem 1.5rem;border-radius:8px;cursor:pointer;font-weight:500;transition:all .3s ease}.btn-secondary:hover{background:var(--color-primary);color:#fff}.btn-small{background:var(--color-primary);color:#fff;border:none;padding:.5rem .75rem;border-radius:6px;cursor:pointer;font-size:.8rem;transition:all .3s ease}.btn-small:hover{background:var(--color-primary-dark)}.btn-small.btn-danger{background:var(--color-error)}.btn-small.btn-danger:hover{background:var(--color-error-dark)}:root{--color-primary: #2f6fed;--color-primary-light: rgba(47, 111, 237, .1);--color-primary-dark: #1d4fc4;--color-success: #16a34a;--color-success-light: rgba(22, 163, 74, .1);--color-warning: #d97706;--color-warning-light: rgba(217, 119, 6, .1);--color-error: #e14444;--color-error-light: rgba(225, 68, 68, .1);--color-error-dark: #c73737;--background-color: #ffffff;--background-secondary: #eef2f7;--text-color: #131c2b;--border-color: #dde4ec}[data-theme=dark]{--color-primary: #3b82f6;--color-primary-light: rgba(59, 130, 246, .1);--color-primary-dark: #2563eb;--color-success: #4ade80;--color-success-light: rgba(74, 222, 128, .1);--color-warning: #fbbf24;--color-warning-light: rgba(251, 191, 36, .1);--color-error: #f87171;--color-error-light: rgba(248, 113, 113, .1);--color-error-dark: #ef5350;--background-color: #0d1117;--background-secondary: #151b23;--text-color: #eef2f7;--border-color: #2a3441}@media(max-width:768px){.admin-page{padding:1rem}.admin-header-content{flex-direction:column;gap:1rem;align-items:center;text-align:center}.admin-title-section{text-align:center}.labs-list{justify-content:center}.admin-tabs{flex-wrap:wrap}.stats-grid,.experiences-grid,.form-grid{grid-template-columns:1fr}.form-actions,.actions{flex-direction:column}.shifts-table{font-size:.8rem}.evaluation-stats{grid-template-columns:repeat(2,1fr)}.filter-row{flex-direction:column;align-items:stretch}.filter-input,.filter-select{min-width:auto}.evaluations-table{overflow-x:auto}.evaluations-table table{min-width:800px}}.evaluations-section{padding:1.5rem}.evaluations-section h2{margin:0 0 1.5rem;color:var(--color-primary);font-size:1.8rem;font-weight:600}.evaluation-filters{margin-bottom:2rem;padding:1.5rem;background:var(--background-secondary);border-radius:8px;border:1px solid var(--border-color)}.filter-row{display:flex;gap:1rem;align-items:center;flex-wrap:wrap}.filter-input,.filter-select{padding:.75rem;border:1px solid var(--border-color);border-radius:6px;font-size:.95rem;background:var(--background-color);color:var(--text-color);flex:1;min-width:200px}.filter-input:focus,.filter-select:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px rgba(var(--color-primary-rgb, 0, 123, 255),.1)}.filter-select{cursor:pointer}.evaluation-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem;margin-bottom:2rem}.evaluation-stats .stat-card{background:var(--background-secondary);border:1px solid var(--border-color);border-radius:8px;padding:1.5rem;text-align:center;box-shadow:0 2px 4px #0000001a}.evaluation-stats .stat-card h3{margin:0 0 .5rem;color:var(--text-color);font-size:.95rem;font-weight:500;text-transform:uppercase;letter-spacing:.5px}.evaluation-stats .stat-number{font-size:2rem;font-weight:700;color:var(--color-primary);margin:0}.evaluations-table{background:var(--background-secondary);border-radius:8px;overflow:hidden;box-shadow:0 2px 4px #0000001a}.loading-evaluations,.no-evaluations{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:3rem;color:var(--text-secondary)}.loading-evaluations .loading-spinner{width:40px;height:40px;border:4px solid var(--border-color);border-top:4px solid var(--color-primary);border-radius:50%;animation:eval-spin 1s linear infinite;margin-bottom:1rem}@keyframes eval-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.evaluations-table table{width:100%;border-collapse:collapse}.evaluations-table th,.evaluations-table td{padding:1rem;text-align:left;border-bottom:1px solid var(--border-color)}.evaluations-table th{background:var(--color-primary);color:#fff;font-weight:600;font-size:.95rem;text-transform:uppercase;letter-spacing:.5px}.evaluations-table tr:hover{background:var(--background-color)}.student-info strong{display:block;color:var(--text-color);margin-bottom:.25rem}.student-info small{color:var(--text-secondary);font-size:.85rem}.activity-info strong{display:block;color:var(--text-color);margin-bottom:.25rem}.activity-info small{color:var(--text-secondary);font-size:.85rem}.date-info strong{display:block;color:var(--text-color);margin-bottom:.25rem}.date-info small{color:var(--text-secondary);font-size:.85rem}.status-badge{padding:.4rem .8rem;border-radius:20px;font-size:.85rem;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.status-badge.completed{background:var(--color-success-light);color:var(--color-success)}.status-badge.cancelled{background:var(--color-error-light);color:var(--color-error)}.status-badge.in-progress{background:var(--color-warning-light);color:var(--color-warning)}.grade-display{text-align:center}.grade-display strong{display:block;font-size:1.2rem;margin-bottom:.25rem}.grade-number{color:var(--color-primary)}.grade-display small{color:var(--text-secondary);font-size:.8rem}.no-grade{color:var(--text-secondary);font-style:italic;text-align:center;display:block}.evaluations-table .actions{text-align:center}.btn-small{padding:.5rem 1rem;border:none;border-radius:4px;font-size:.85rem;font-weight:600;cursor:pointer;transition:all .2s ease;text-decoration:none;display:inline-flex;align-items:center;gap:.5rem}.btn-small.btn-primary{background:var(--color-primary);color:#fff}.btn-small.btn-primary:hover{background:var(--color-primary-dark);transform:translateY(-1px)}