:root{--bg-color: #f0f2f5;--card-bg: #ffffff;--text-primary: #1c1e21;--text-secondary: #606770;--accent: #646cff;--accent-light: rgba(100, 108, 255, .1);--border-color: #dddfe2;--input-bg: #f0f2f5;--code-bg: #f8f9fa;--success: #42b72a;--danger: #fa383e}.dark{--bg-color: #18191a;--card-bg: #242526;--text-primary: #e4e6eb;--text-secondary: #b0b3b8;--accent: #747bff;--accent-light: rgba(116, 123, 255, .15);--border-color: #3e4042;--input-bg: #3a3b3c;--code-bg: #303030}*,*:before,*:after{box-sizing:border-box}body{margin:0;padding:0;background-color:var(--bg-color);color:var(--text-primary);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;transition:background-color .3s,color .3s;overflow-x:hidden}.app-container{max-width:1200px;margin:0 auto;padding:20px;min-height:100vh;width:100%}.card{background-color:var(--card-bg);border:1px solid var(--border-color);border-radius:8px;padding:20px;margin-bottom:20px;box-shadow:0 1px 2px #0000001a;max-width:100%}button{cursor:pointer}a{color:var(--accent);text-decoration:none;font-weight:500}a:hover{text-decoration:underline}.btn-primary{background:var(--accent);color:#fff;border:none;padding:8px 16px;border-radius:6px;font-weight:600}.btn-primary:hover{opacity:.9}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.btn-secondary{background:var(--input-bg);color:var(--text-primary);border:none;padding:8px 16px;border-radius:6px;font-weight:600}.btn-secondary:hover{background:#0000001a}.detail-layout{display:flex;min-height:100vh;position:relative;margin:-20px;width:calc(100% + 40px)}.sidebar{width:280px;background:var(--card-bg);border-right:1px solid var(--border-color);position:fixed;top:0;left:0;height:100vh;z-index:100;display:flex;flex-direction:column;transform:translate(-100%);transition:transform .3s ease}.sidebar.open{transform:translate(0)}.sidebar-header{padding:15px;border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center}.sidebar-content{flex:1;overflow-y:auto;padding:10px}.sidebar-sec-title{padding:10px;font-weight:700;cursor:pointer;border-radius:4px}.sidebar-sec-title:hover{background:var(--input-bg)}.sidebar-sub-list{margin-left:15px;border-left:2px solid var(--border-color)}.sidebar-item{padding:6px 10px;font-size:.9em;cursor:pointer;color:var(--text-secondary);margin-bottom:2px}.sidebar-item:hover{color:var(--accent);background:var(--input-bg);border-radius:4px}.sidebar-item.done{color:var(--success)}.main-content{flex:1;padding:30px;width:100%;max-width:100%;box-sizing:border-box;transition:margin-left .3s ease;overflow-x:hidden}@media(min-width:1000px){.sidebar{transform:translate(0)}.main-content{margin-left:280px;width:calc(100% - 280px)}.close-sidebar-btn,.menu-btn{display:none}}.top-bar{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;flex-wrap:wrap;gap:10px}.top-actions{display:flex;gap:10px;flex-wrap:wrap}.header-course h1{font-size:1.8rem;margin:0 0 10px;word-wrap:break-word}.progress-bar-container{height:6px;background:var(--input-bg);border-radius:3px;overflow:hidden}.progress-fill{height:100%;background:var(--accent);transition:width .3s}.section-block{margin-bottom:40px}.section-header-row{display:flex;justify-content:space-between;border-bottom:1px solid var(--border-color);margin-bottom:15px;padding-bottom:5px;flex-wrap:wrap}.apartado-card{background:var(--card-bg);border:1px solid var(--border-color);border-radius:8px;padding:15px;margin-bottom:15px;max-width:100%}.apartado-card.pulse{border-color:var(--accent);box-shadow:0 0 8px #646cff4d}.apartado-header{display:flex;flex-direction:column;gap:15px}.apartado-text-content{width:100%;word-wrap:break-word}.apartado-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap;width:100%;justify-content:flex-end;margin-top:5px;padding-top:10px;border-top:1px dashed var(--border-color)}.btn-icon-danger{background:none;border:none;color:var(--danger);font-size:1.1em;opacity:.7}.btn-icon-danger:hover{opacity:1}.btn-chat{background:#8e44ad;color:#fff;border:none;font-weight:600;padding:6px 12px;border-radius:6px}.btn-danger-nav{background:var(--danger);color:#fff;border:none;padding:8px 12px;border-radius:6px}.time-badge{font-size:.8em;background:var(--input-bg);padding:2px 5px;border-radius:4px;margin-left:8px}.script-box{background:var(--code-bg);padding:15px;margin-top:15px;border-radius:6px;font-size:.95em;overflow-x:auto;max-width:100%}.modal-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#00000080;z-index:3000;display:flex;justify-content:center;align-items:center}.modal-content{background:var(--card-bg);padding:25px;border-radius:12px;width:90%;max-width:500px;max-height:90vh;overflow-y:auto;box-shadow:0 10px 25px #0000004d}.prompt-area{width:100%;min-height:200px;padding:12px;border:1px solid var(--border-color);border-radius:6px;background:var(--input-bg);color:var(--text-primary);font-family:monospace;font-size:.95rem;resize:vertical;margin-top:5px;line-height:1.5}.sliders-container{display:flex;flex-direction:column;gap:20px;margin-top:20px;width:100%}.sliders-container .control-group{width:100%;display:flex;flex-direction:column}.sliders-container label{margin-bottom:8px;display:flex;justify-content:space-between}.sliders-container input[type=range]{width:100%;cursor:pointer;accent-color:var(--accent);height:30px}.pdf-checkbox-row{display:flex;align-items:center;gap:10px;padding:5px;border-radius:4px;cursor:pointer}.pdf-checkbox-row:hover{background:var(--input-bg)}.pdf-checkbox-row input{transform:scale(1.2);accent-color:var(--accent)}.chat-layout{position:fixed;top:0;left:0;width:100vw;height:100dvh;z-index:9999;display:flex;background-color:var(--bg-color);color:var(--text-primary);overflow:hidden}.chat-sidebar{width:260px;background-color:var(--card-bg);border-right:1px solid var(--border-color);display:flex;flex-direction:column;transition:transform .3s ease}.chat-main{flex:1;display:flex;flex-direction:column;height:100%;position:relative;background-color:var(--bg-color);width:100%}.chat-header-main{padding:15px 20px;background-color:var(--card-bg);border-bottom:1px solid var(--border-color);flex-shrink:0;display:flex;align-items:center;gap:15px}.chat-header-main h2{margin:0;font-size:1.1rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.messages-container{flex:1;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:15px;min-height:0;-webkit-overflow-scrolling:touch}.input-area{padding:20px;padding-bottom:calc(20px + env(safe-area-inset-bottom));background-color:var(--card-bg);border-top:1px solid var(--border-color);flex-shrink:0;position:relative;z-index:20}.input-area form{display:flex;gap:10px}.input-area input{flex:1;padding:12px;border-radius:20px;border:1px solid var(--border-color);background:var(--input-bg);color:var(--text-primary);outline:none;font-size:16px}.input-area input:focus{border-color:var(--accent)}.input-area button{padding:0 25px;border-radius:20px;background:var(--accent);color:#fff;border:none;font-weight:700}.input-area button:disabled{opacity:.6}.sidebar-footer{padding:15px;border-top:1px solid var(--border-color)}.history-list{flex:1;overflow-y:auto;padding:10px}.history-item{padding:10px;margin-bottom:5px;border-radius:6px;cursor:pointer}.history-item:hover{background-color:var(--input-bg)}.history-item.active{background-color:var(--accent);color:#fff}.history-item.active .chat-date{color:#fffc}.btn-back{background:none;border:none;color:var(--accent);font-size:1rem;cursor:pointer}.btn-new-chat{width:100%;padding:10px;background:var(--input-bg);border:1px solid var(--border-color);border-radius:6px;color:var(--text-primary)}.message-row{display:flex;width:100%}.message-row.user{justify-content:flex-end}.message-bubble{max-width:75%;padding:10px 15px;border-radius:12px;line-height:1.5;word-wrap:break-word}.message-bubble.user{background-color:var(--accent);color:#fff;border-bottom-right-radius:2px}.message-bubble.assistant{background-color:var(--card-bg);color:var(--text-primary);border:1px solid var(--border-color);border-bottom-left-radius:2px}.message-bubble pre{background:#0000001a;padding:10px;border-radius:4px;overflow-x:auto;max-width:100%}.dark .message-bubble pre{background:#0000004d}.mobile-menu-btn{display:none;background:none;border:none;font-size:1.5rem;color:var(--text-primary);cursor:pointer;padding:0}.close-sidebar-mobile{display:none;background:none;border:none;font-size:1.5rem;color:var(--text-primary);cursor:pointer}.sidebar-overlay{display:none}@media(max-width:768px){.mobile-menu-btn{display:block}.chat-sidebar{position:fixed;top:0;left:0;height:100dvh;width:80%;max-width:300px;z-index:10001;transform:translate(-100%);box-shadow:2px 0 10px #0003}.chat-sidebar.open{transform:translate(0)}.close-sidebar-mobile{display:block;margin-left:auto}.sidebar-overlay{display:block;position:fixed;top:0;left:0;width:100%;height:100dvh;background:#00000080;z-index:10000;animation:fadeIn .2s}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.form-section{margin-bottom:25px;padding-bottom:15px;border-bottom:1px dashed var(--border-color)}.form-section:last-child{border-bottom:none}.form-group{margin-bottom:15px}.form-group label{display:block;margin-bottom:8px;font-weight:500}.form-group input[type=text],.form-group input[type=number],.form-group select{width:100%;padding:10px;border:1px solid var(--border-color);border-radius:6px;background:var(--input-bg);color:var(--text-primary);font-size:1rem}.selection-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:15px}.selection-card{background:var(--card-bg);border:2px solid var(--border-color);border-radius:8px;padding:15px;cursor:pointer;transition:all .2s ease;text-align:center;display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:120px}.selection-card:hover{border-color:var(--text-secondary);transform:translateY(-2px)}.selection-card.active{border-color:var(--accent);background-color:var(--accent-light);box-shadow:0 0 0 1px var(--accent)}.selection-card .icon{font-size:2rem;margin-bottom:10px}.selection-card p{font-size:.85em;color:var(--text-secondary);margin:5px 0 0}.course-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px;margin-top:20px}.course-card{background:var(--card-bg);border:1px solid var(--border-color);border-radius:10px;padding:20px;display:block;text-decoration:none;color:var(--text-primary);box-shadow:0 2px 5px #0000000d;transition:transform .2s,box-shadow .2s,border-color .2s}.course-card:hover{transform:translateY(-4px);box-shadow:0 10px 20px #0000001f;border-color:var(--accent);text-decoration:none}.course-card h3{margin:0 0 10px;color:var(--accent);word-wrap:break-word}.badge{font-size:.75em;padding:4px 8px;background:var(--input-bg);border-radius:12px;color:var(--text-secondary);border:1px solid var(--border-color)}.date{font-size:.8em;color:var(--text-secondary);margin-top:15px;text-align:right}.upload-box{border:2px dashed var(--border-color);padding:30px;border-radius:10px;text-align:center;cursor:pointer;display:flex;flex-direction:column;align-items:center;background:var(--input-bg);transition:border-color .2s}.upload-box:hover{border-color:var(--accent)}.file-chip{display:flex;justify-content:space-between;align-items:center;background:var(--card-bg);border:1px solid var(--border-color);padding:8px 12px;border-radius:6px;margin-top:5px;word-break:break-all}.responsive-row{display:flex;gap:15px;flex-wrap:wrap}.big-btn{width:100%;padding:15px;font-size:1.1rem;margin-top:10px}.global-player-overlay{position:fixed;bottom:20px;right:20px;z-index:5000}.global-player-card{width:350px;background:var(--card-bg);border:1px solid var(--border-color);box-shadow:0 5px 25px #00000040;border-radius:12px;display:flex;flex-direction:column;overflow:hidden;max-height:80vh;animation:slideUp .3s ease-out}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.player-header{background:var(--accent);color:#fff;padding:10px 15px;display:flex;justify-content:space-between;align-items:center}.player-header h3{margin:0;font-size:1rem}.btn-close-player{background:none;border:none;color:#fff;font-size:1.5rem;line-height:1;padding:0}.player-track-info{padding:15px;text-align:center;border-bottom:1px solid var(--border-color);background:var(--input-bg)}.player-track-info strong{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.player-time{font-size:.85em;color:var(--text-secondary)}.main-audio-element{width:100%;border-radius:0}.speed-controls{padding:10px;display:flex;gap:5px;justify-content:center;align-items:center;border-bottom:1px solid var(--border-color);font-size:.85em;background:var(--card-bg)}.btn-speed{padding:4px 8px;border:1px solid var(--border-color);border-radius:4px;background:var(--input-bg);color:var(--text-primary);font-size:.9em}.btn-speed.active{background:var(--accent);color:#fff;border-color:var(--accent)}.divider-vertical{width:1px;height:20px;background-color:var(--border-color);margin:0 5px}.playlist-container{flex:1;overflow-y:auto;background:var(--card-bg);display:flex;flex-direction:column}.playlist-container h4{padding:10px 15px;margin:0;font-size:.9em;color:var(--text-secondary);background:var(--input-bg);border-bottom:1px solid var(--border-color);position:sticky;top:0}.playlist-list{max-height:200px;overflow-y:auto}.playlist-item{padding:10px 15px;border-bottom:1px solid var(--border-color);cursor:pointer;font-size:.9rem;display:flex;align-items:center;gap:10px}.playlist-item:hover{background-color:var(--input-bg)}.playlist-item.active{background-color:var(--accent-light);color:var(--accent);font-weight:700;border-left:4px solid var(--accent)}.pl-icon{font-size:1.1em;width:20px;text-align:center}.pl-title{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}@media(max-width:768px){.app-container{padding:10px;overflow-x:hidden}.detail-layout{margin:-10px;width:calc(100% + 20px);flex-direction:column}.main-content{padding:15px;margin-left:0!important;width:100%;max-width:100%}.card,.apartado-card,.section-block{max-width:100%;overflow-wrap:break-word;word-wrap:break-word}.global-player-overlay{bottom:0;right:0;left:0;width:100%;padding:0 10px 10px}.global-player-card{width:100%;max-width:none;border-radius:12px 12px 0 0;max-height:60vh;box-shadow:0 -2px 10px #0003}.top-actions{width:100%;justify-content:space-between}.top-actions button{flex:1;text-align:center;padding:10px;font-size:.9rem}.responsive-row{flex-direction:column;gap:10px}}:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}