:root{--primary: #1666af;--secondary: #4a7abc;--text-color: #212529;--background-color: #f8f9fa;--light-gray: #e9ecef;--dark-gray: #343a40;--border-color: #dee2e6;--sidebar-bg: linear-gradient(to top, #1e4b91, #14305f);--sidebar-text: white;--sidebar-hover-bg: #2a5a9c;--sidebar-active-bg: #4a7abc;--sidebar-active-border: #ff6b35;--header-bg: white;--header-text: var(--text-color);--info: #17a2b8;--sidebar-width: 280px;--sidebar-width-collapsed: 80px;--header-height: 70px;--border-radius: 8px;--transition-speed: .3s;--primary-dark: #074078;--background: #f0f2f5;--surface: #ffffff;--text: #23272f;--accent: #1fa3b8;--danger: #dc3545;--success: #28a745;--warning: #ffc107;--border: #dee2e6;--shadow: 0 4px 20px rgba(10, 40, 120, .08)}html.dark{--primary: #2896f3;--text-color: #f8f9fa;--background-color: #0f0f1a;--light-gray: #2c2c3e;--dark-gray: #f8f9fa;--border-color: #3e3e55;--sidebar-bg: #0a2463;--sidebar-text: #e0e0e0;--sidebar-hover-bg: #1a3c7c;--sidebar-active-bg: #3a66b3;--sidebar-active-border: #ff8c42;--header-bg: #1a1a2e;--header-text: #f8f9fa;--danger: #cc3333;--primary-dark: #114b80;--background: #161a22;--surface: #23272f;--text: #f3f6fa;--accent: #36dfed;--danger: #fa5246;--success: #5cf194;--warning: #ffe16b;--border: #333741;--shadow: 0 4px 20px rgba(0,0,0,.25)}html{visibility:visible!important}body{opacity:1!important;visibility:visible!important;transition:opacity .2s ease-in}html.authenticated .unauthenticated-content,html.unauthenticated .authenticated-content,.app-wrapper[data-auth-state=authenticated] .unauthenticated-content,.app-wrapper[data-auth-state=unauthenticated] .authenticated-content{display:none!important}.authenticated-content,.unauthenticated-content{opacity:1;transition:opacity .2s ease-in}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;margin:0;padding:0;background-color:var(--background-color);color:var(--text-color);transition:background-color var(--transition-speed) ease,color var(--transition-speed) ease;min-height:100vh;display:flex;flex-direction:column}#app-container{display:contents;min-height:100vh;padding:1%}#sidebar{width:var(--sidebar-width);min-width:var(--sidebar-width);background:var(--sidebar-bg);color:var(--sidebar-text);transition:all var(--transition-speed) ease;padding-top:var(--header-height);display:flex;flex-direction:column;position:fixed;height:100%;left:0;top:0;box-shadow:2px 0 5px #0000000d;z-index:1000}#sidebar.collapsed{width:var(--sidebar-width-collapsed);min-width:var(--sidebar-width-collapsed)}.nav-header{padding:15px 20px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid rgba(255,255,255,.1);position:absolute;top:0;width:100%;height:var(--header-height);background-color:var(--sidebar-bg);box-sizing:border-box}.logo-container{display:flex;align-items:center;overflow:hidden}.logo-full{max-height:auto;width:100%;transition:opacity var(--transition-speed) ease,width var(--transition-speed) ease}.logo-full.hidden{opacity:0;width:0}.logo-collapsed{max-height:40px;width:0;opacity:0;transition:opacity var(--transition-speed) ease,width var(--transition-speed) ease}.logo-collapsed.visible{max-height:auto;width:100%;opacity:1}.nav-version{font-size:.8rem;opacity:.7;transition:opacity var(--transition-speed) ease;margin-left:10px}.nav-version.hidden{opacity:0}#main-nav{list-style:none;padding:0;margin:15px 0 20px;flex-grow:1;overflow-y:auto;scrollbar-width:none;-ms-overflow-style:none}#main-nav::-webkit-scrollbar{display:none}#main-nav li{position:relative}#main-nav a{display:flex;align-items:center;padding:14px 20px;color:var(--sidebar-text);text-decoration:none;transition:background-color var(--transition-speed) ease;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;position:relative}#main-nav a:hover{background-color:var(--sidebar-hover-bg)}#main-nav a.active{background-color:var(--sidebar-active-bg);font-weight:700;border-left:5px solid var(--sidebar-active-border);padding-left:15px}#main-nav a:not(.active){border-left:5px solid transparent;padding-left:20px}#main-nav i{font-size:1.2rem;margin-right:15px;width:20px;text-align:center;transition:margin-right var(--transition-speed) ease}#sidebar.collapsed #main-nav i{margin-right:0}#sidebar.collapsed #main-nav span{opacity:0;width:0;transition:opacity var(--transition-speed) ease,width var(--transition-speed) ease}#main-nav span{opacity:1;width:auto;transition:opacity var(--transition-speed) ease,width var(--transition-speed) ease}.user-section{padding:20px;text-align:center;border-top:1px solid rgba(255,255,255,.1);display:flex;flex-direction:column;align-items:center;gap:15px;background-color:#0003;position:sticky;bottom:20px;z-index:10}.user-profile-pic{width:60px;height:60px;border-radius:50%;overflow:hidden;margin-bottom:10px;border:3px solid var(--accent)}.user-profile-pic img{width:100%;height:100%;object-fit:cover}.user-info .user-name{font-weight:600;color:var(--sidebar-text);font-size:1.1rem;margin-bottom:5px}.user-info .user-role{font-size:.85rem;color:var(--light-gray)}.user-actions{display:flex;gap:10px;width:100%;justify-content:center}.action-btn{padding:10px;border-radius:var(--border-radius);background-color:transparent;color:var(--sidebar-text);border:1px solid var(--sidebar-text);cursor:pointer;font-size:.85rem;display:flex;align-items:center;justify-content:center;gap:8px;transition:all .2s ease;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.action-btn i{font-size:1rem;margin-right:0}.messages-btn{background-color:#ff6b35;border-color:#ff6b35;color:#fff}.messages-btn:hover{filter:brightness(1.1)}.logout-btn{background-color:var(--danger);border-color:var(--danger);color:#fff}.logout-btn:hover{filter:brightness(1.1)}#sidebar.collapsed .user-profile-pic,#sidebar.collapsed .user-info,#sidebar.collapsed .user-actions span{display:none}#sidebar.collapsed .user-actions{flex-direction:column;width:auto;gap:5px}#sidebar.collapsed .action-btn{width:50px;height:50px;padding:0;border-radius:50%}#sidebar.collapsed .action-btn i{margin:0}#main-content{margin-left:var(--sidebar-width);padding-top:var(--header-height);flex-grow:1;background-color:var(--background-color);transition:margin-left var(--transition-speed) ease;padding:85px 1% 1%}#sidebar.collapsed~#main-content{margin-left:var(--sidebar-width-collapsed)}header{position:fixed;top:0;left:var(--sidebar-width);width:calc(100% - var(--sidebar-width));height:var(--header-height);background-color:var(--header-bg);color:var(--header-text);display:flex;align-items:center;padding:0 2rem;box-shadow:0 2px 5px #0000000d;z-index:999;transition:all .3s ease}#sidebar.collapsed+#main-content header{left:var(--sidebar-width-collapsed);width:calc(100% - var(--sidebar-width-collapsed))}.header-title{font-size:1.5rem;margin:0;position:absolute;left:50%;transform:translate(-50%);font-weight:600;color:var(--header-text);white-space:nowrap}.header-actions{margin-left:auto;display:flex;position:fixed;right:1%;align-items:center;gap:1.2rem}#nav-toggle{background:none;border:none;color:var(--header-text);font-size:1.5rem;cursor:pointer;margin-right:20px;transition:color .2s ease}#nav-toggle:hover{color:var(--primary)}#nombre-usuario-header{font-weight:500;color:var(--header-text);white-space:nowrap}.theme-toggle-btn{background:none;border:1px solid var(--border-color);border-radius:50%;width:40px;height:40px;display:flex;justify-content:center;align-items:center;font-size:1.2rem;cursor:pointer;transition:background-color .2s ease,border-color .2s ease,color .2s ease;color:var(--header-text);flex-shrink:0}.theme-toggle-btn:hover{background-color:var(--border-color)}.theme-toggle-btn i{font-size:1.2rem}#snackbar{visibility:hidden;min-width:250px;background-color:#333;color:#fff;text-align:center;border-radius:var(--border-radius);padding:16px;position:fixed;z-index:1001;left:50%;transform:translate(-50%);bottom:30px;font-size:17px;transition:visibility .3s,opacity .3s ease-in-out;opacity:0}#snackbar.show{visibility:visible;opacity:1}#snackbar.success{background-color:var(--success)}#snackbar.error{background-color:var(--danger)}#snackbar.info{background-color:var(--info)}@media (max-width: 870px){#sidebar.collapsed+#main-content header{left:0;width:100%}#sidebar{width:0;min-width:0;transform:translate(-100%)}#sidebar.collapsed{transform:translate(-100%)}#sidebar:not(.collapsed){width:var(--sidebar-width);min-width:var(--sidebar-width);transform:translate(0)}#main-content{margin-left:0!important;width:100%}header{margin-left:0!important;width:100%!important;padding:0 1rem;justify-content:space-between}.header-title{display:none;position:static;transform:none;font-size:1.2rem;flex-grow:1;text-align:center}#nombre-usuario-header{display:none}#nav-toggle{margin-right:10px}.header-actions{gap:.8rem}}@media (max-width: 1300px){.header-title{display:none}}.stat-card{background:var(--surface);color:var(--text);padding:1.5rem;border-radius:12px;text-align:center;box-shadow:var(--shadow);border:1px solid var(--border)}.stat-card h4{margin:0 0 10px;color:var(--primary);font-size:1rem;font-weight:600}.stat-card p{font-size:1.8rem;font-weight:700;margin:0;color:var(--accent)}