body.dark{--primary-bg: #181a20;--secondary-bg: #21242c;--header-bg: #21242c;--text-color: #e2e4eb;--text-secondary: #a0a4b8;--border-color: #2d313a;--hover-bg: #2d313a;--active-bg: #2a3a5a;--logo-filter: invert(100%) sepia(0%) saturate(0%) hue-rotate(0deg) brightness(100%) contrast(100%);--shadow-color: rgba(0, 0, 0, .4);--card-bg: #1e2128;--input-bg: #2d313a;--button-primary: #4a6bff;--button-hover: #3a5aef}body.dark{background:var(--primary-bg)!important;color:var(--text-color)!important}body.dark .portal-header{background:var(--header-bg)!important;border-bottom:1px solid var(--border-color)}body.dark .logo-container img{filter:var(--logo-filter)}body.dark .sidebar{background:var(--secondary-bg)!important;border-right:1px solid var(--border-color)}body.dark button{background:var(--button-primary);color:#fff}body.dark button:hover{background:var(--button-hover)}body.dark input,body.dark textarea,body.dark select{background:var(--input-bg);color:var(--text-color);border:1px solid var(--border-color)}body.dark{--heading-color: #ffffff;--link-color: #6c9eff;--link-hover: #8ab1ff;--input-border-focus: #4a6bff;--input-placeholder: #7a7f8c;--card-shadow: 0 4px 12px rgba(0, 0, 0, .3);--table-header-bg: #2d313a;--table-row-odd: #21242c;--table-row-even: #252931}body.dark .btn-primary{background:var(--button-primary);border-color:var(--button-primary)}body.dark .btn-outline{background:transparent;border:1px solid var(--button-primary);color:var(--button-primary)}body.dark .card{background:var(--card-bg);box-shadow:var(--card-shadow);border:1px solid var(--border-color)}body.dark .table{color:var(--text-color)}body.dark .table thead th{background:var(--table-header-bg)}body.dark .table tbody tr:nth-child(odd){background:var(--table-row-odd)}body.dark .table tbody tr:nth-child(2n){background:var(--table-row-even)}body.dark .dropdown-menu{background:var(--secondary-bg);border:1px solid var(--border-color)}body.dark .nav-tabs .nav-link.active{border-bottom-color:var(--button-primary)}body.light{--primary-bg: #f6f7fa;--secondary-bg: #ffffff;--header-bg: #ececf3;--text-color: #181a20;--text-secondary: #5a5e6a;--border-color: #d8dae3;--hover-bg: #e8eaf3;--active-bg: #e6f0ff;--logo-filter: none;--shadow-color: rgba(0, 0, 0, .1);--card-bg: #ffffff;--input-bg: #ffffff;--button-primary: #4a6bff;--button-hover: #3a5aef}body.light{background:var(--primary-bg)!important;color:var(--text-color)!important}body.light .portal-header{background:var(--header-bg)!important;border-bottom:1px solid var(--border-color)}body.light .logo-container img{filter:var(--logo-filter)}body.light .sidebar{background:var(--secondary-bg)!important;border-right:1px solid var(--border-color)}body.light button{background:var(--button-primary);color:#fff}body.light button:hover{background:var(--button-hover)}body.light input,body.light textarea,body.light select{background:var(--input-bg);color:var(--text-color);border:1px solid var(--border-color)}body.light{--heading-color: #12141a;--link-color: #2c5aff;--link-hover: #1a4eff;--input-border-focus: #2c5aff;--input-placeholder: #a0a4b8;--card-shadow: 0 2px 8px rgba(0, 0, 0, .1);--table-header-bg: #f0f2f7;--table-row-odd: #ffffff;--table-row-even: #f8f9fc}body.light .btn-primary{background:var(--button-primary);border-color:var(--button-primary)}body.light .btn-outline{background:transparent;border:1px solid var(--button-primary);color:var(--button-primary)}body.light .card{background:var(--card-bg);box-shadow:var(--card-shadow);border:1px solid var(--border-color)}body.light .table{color:var(--text-color)}body.light .table thead th{background:var(--table-header-bg)}body.light .table tbody tr:nth-child(odd){background:var(--table-row-odd)}body.light .table tbody tr:nth-child(2n){background:var(--table-row-even)}body.light .dropdown-menu{background:var(--secondary-bg);border:1px solid var(--border-color)}body.light .nav-tabs .nav-link.active{border-bottom-color:var(--button-primary)}.bottom-nav{position:fixed;bottom:0;left:0;right:0;display:flex;justify-content:space-around;align-items:center;background-color:var(--secondary-bg);border-top:1px solid var(--border-color);padding:4px 0;z-index:100;transition:all .3s ease}.bottom-nav.visible{transform:translateY(0)}.bottom-nav.hidden{transform:translateY(100%)}.nav-item{display:flex;flex-direction:column;align-items:center;background:none;border:none;color:var(--text-secondary);padding:1px 4px;cursor:pointer;gap:1px;flex:1;max-width:100px;transition:color .3s ease}.nav-item.active{color:var(--accent-color)}.nav-label{font-size:.7rem;white-space:nowrap;transition:color .3s ease}.toggle-nav{position:fixed;bottom:0;left:50%;transform:translate(-50%);width:40px;height:20px;background-color:var(--secondary-bg);border:1px solid var(--border-color);border-bottom:none;border-radius:8px 8px 0 0;display:flex;justify-content:center;align-items:center;cursor:pointer;z-index:101;transition:all .3s ease}.toggle-nav:hover{background-color:var(--hover-bg)}@media (max-width: 480px){.nav-label{font-size:.6rem}}@media (min-width: 768px){.bottom-nav{max-width:500px;margin:0 auto;left:50%;transform:translate(-50%);border-radius:6px 6px 0 0;bottom:5px;box-shadow:0 -2px 10px var(--shadow-color)}.bottom-nav.hidden{transform:translate(-50%,100%)}.toggle-nav{left:calc(50% + 230px)}}.footer{background:var(--footer-bg, var(--header-bg));border-top:1px solid var(--border-color);margin-top:auto;width:100%;position:relative;z-index:10}.footer-container{max-width:1200px;margin:0 auto;padding:2rem 1rem}.footer-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem;margin-bottom:1.5rem}.footer-section{display:flex;flex-direction:column;min-width:0}.footer-logo{display:flex;align-items:center;gap:.75rem;margin-bottom:1rem}.footer-logo-image{width:35px;height:35px;object-fit:contain}.footer-logo-text{font-size:1.2rem;font-weight:600;color:var(--accent-color);white-space:nowrap}.footer-description{color:var(--text-secondary);line-height:1.5;margin-bottom:1.25rem;font-size:.9rem;max-width:280px}.social-links{display:flex;gap:.75rem;flex-wrap:wrap}.social-link{display:flex;align-items:center;justify-content:center;width:36px;height:36px;background:var(--secondary-bg);border:1px solid var(--border-color);border-radius:6px;color:var(--text-secondary);text-decoration:none;transition:all .2s ease;flex-shrink:0}.social-link:hover{background:var(--accent-color);color:#fff;border-color:var(--accent-color);transform:translateY(-1px)}.social-icon{font-size:1.1rem}.footer-section-title{display:flex;align-items:center;gap:.5rem;font-size:1rem;font-weight:600;color:var(--text-color);margin-bottom:1rem;white-space:nowrap}.section-icon{color:var(--accent-color);font-size:1.1rem;flex-shrink:0}.footer-links{list-style:none;padding:0;margin:0}.footer-links li{margin-bottom:.5rem}.footer-link{color:var(--text-secondary);text-decoration:none;font-size:.9rem;transition:color .2s ease;display:block;padding:.1rem 0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.footer-link:hover{color:var(--accent-color)}.contact-info{display:flex;flex-direction:column;gap:.75rem}.contact-item{display:flex;align-items:flex-start;gap:.75rem}.contact-icon{color:var(--accent-color);font-size:1rem;margin-top:.1rem;flex-shrink:0}.contact-label{font-size:.75rem;color:var(--text-secondary);margin-bottom:.1rem;text-transform:uppercase;font-weight:500}.contact-link{color:var(--text-color);text-decoration:none;font-size:.9rem;transition:color .2s ease;display:block}.contact-link:hover{color:var(--accent-color)}.contact-text{color:var(--text-color);font-size:.9rem;line-height:1.3}.footer-divider{height:1px;background:var(--border-color);margin:1.5rem 0;opacity:.5}.footer-bottom{padding:1rem 0 0}.footer-bottom-content{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}.copyright{color:var(--text-secondary);font-size:.85rem;margin:0;white-space:nowrap}.footer-legal{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap}.legal-link{color:var(--text-secondary);text-decoration:none;font-size:.85rem;transition:color .2s ease;white-space:nowrap}.legal-link:hover{color:var(--accent-color)}.legal-separator{color:var(--text-secondary);font-size:.85rem}@media (max-width: 1024px){.footer-content{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1.5rem}}@media (max-width: 768px){.footer-container{padding:1.5rem 1rem}.footer-content{grid-template-columns:repeat(2,1fr);gap:1.5rem 2rem}.footer-bottom-content{flex-direction:column;text-align:center;gap:.75rem}.footer-legal{justify-content:center}.footer-description{max-width:none}}@media (max-width: 640px){.footer-content{grid-template-columns:1fr;gap:1.5rem;text-align:center}.footer-logo,.social-links,.footer-section-title{justify-content:center}.contact-item{justify-content:center;text-align:center}.footer-links{text-align:center}}@media (max-width: 480px){.footer-container{padding:1rem .75rem}.footer-logo-text{font-size:1.1rem}.footer-description{font-size:.85rem}.copyright,.legal-link{font-size:.8rem}}.footer *{box-sizing:border-box}.footer a,.footer button{cursor:pointer}.footer-section{overflow:hidden}.footer-link,.contact-link,.contact-text{max-width:100%}@media (max-width: 768px){.footer-section{text-align:left}.footer-section:not(:first-child){border-top:1px solid var(--border-color);padding-top:1.5rem}}.footer,.footer *{margin:0;padding:0}.footer>*{margin:0;padding:0}.layout{display:flex;min-height:100vh;background:var(--primary-bg);position:relative;overflow-x:hidden}.sidebar{width:260px;background:var(--secondary-bg);color:var(--text-color);display:flex;flex-direction:column;transition:transform .3s ease;z-index:1000;position:fixed;height:100vh;overflow-y:auto;border-right:1px solid var(--border-color)}.sidebar-header{padding:20px 16px;border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center;background:var(--secondary-bg);position:sticky;top:0;z-index:10}.sidebar-header h2{margin:0;font-size:18px;font-weight:600;color:var(--text-color)}.sidebar-close{display:none;background:none;border:none;color:var(--text-color);font-size:18px;cursor:pointer;padding:6px;border-radius:4px;transition:background-color .2s ease}.sidebar-close:hover{background:var(--hover-bg)}.sidebar-nav{flex:1;padding:16px 0}.nav-item{display:flex;align-items:center;padding:12px 16px;color:var(--text-secondary);text-decoration:none;transition:all .2s ease;border-left:3px solid transparent;margin:2px 8px;border-radius:6px}.nav-item:hover,.nav-item.active{background:var(--hover-bg);color:var(--text-color);border-left-color:var(--accent-color)}.nav-item i{width:18px;margin-right:12px;font-size:15px;color:var(--text-secondary);flex-shrink:0}.nav-item:hover i{color:var(--text-color)}.nav-item span{font-weight:500;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar-footer{padding:16px;border-top:1px solid var(--border-color);background:var(--secondary-bg);position:sticky;bottom:0}.theme-toggle{display:flex;align-items:center;justify-content:center;width:100%;padding:12px;background:var(--secondary-bg);border:1px solid var(--border-color);border-radius:6px;color:var(--text-color);cursor:pointer;transition:all .2s ease;font-weight:500;font-size:14px}.theme-toggle:hover{background:var(--hover-bg)}.theme-toggle i{margin-right:8px;font-size:15px}.main-content{flex:1;margin-left:260px;display:flex;flex-direction:column;min-height:100vh;transition:margin-left .3s ease;min-width:0}.header{background:var(--header-bg);border-bottom:1px solid var(--border-color);padding:0 20px;height:70px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:100}.header-left{display:flex;align-items:center;gap:16px;min-width:0;flex:1}.sidebar-toggle{display:none;background:none;border:none;font-size:18px;color:var(--text-color);cursor:pointer;padding:8px;border-radius:6px;transition:all .2s ease}.sidebar-toggle:hover{background:var(--hover-bg)}.header h1{margin:0;font-size:20px;font-weight:600;color:var(--text-color);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:300px}.header-right{display:flex;align-items:center;gap:12px;flex-shrink:0}.theme-toggle-mobile{display:none;background:none;border:none;font-size:18px;color:var(--text-color);cursor:pointer;padding:8px;border-radius:6px;transition:all .2s ease}.theme-toggle-mobile:hover{background:var(--hover-bg)}.user-menu{position:relative}.user-button{display:flex;align-items:center;gap:8px;background:none;border:none;padding:8px 12px;border-radius:8px;cursor:pointer;transition:all .2s ease;color:var(--text-color);background:var(--secondary-bg);border:1px solid var(--border-color);min-width:0}.user-button:hover{background:var(--hover-bg)}.user-avatar{width:36px;height:36px;border-radius:50%;background:var(--accent-color);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;font-size:14px;flex-shrink:0}.user-name{font-weight:500;font-size:14px;color:var(--text-color);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:120px}.user-role{font-size:11px;color:var(--text-secondary);font-weight:400}.dropdown-menu{position:absolute;top:100%;right:0;background:var(--dropdown-bg);border:1px solid var(--border-color);border-radius:8px;padding:8px 0;min-width:200px;box-shadow:0 4px 16px var(--shadow-color);z-index:1000;margin-top:8px}.dropdown-item{display:flex;align-items:center;gap:10px;padding:10px 16px;background:none;border:none;width:100%;text-align:left;cursor:pointer;color:var(--text-color);transition:all .2s ease;font-size:14px;text-decoration:none}.dropdown-item:hover{background:var(--hover-bg)}.dropdown-item i{width:16px;font-size:14px;color:var(--text-secondary);flex-shrink:0}.dropdown-item.logout{color:var(--error-color)}.dropdown-item.logout:hover{background:#ef44441a}.dropdown-divider{height:1px;background:var(--border-color);margin:8px 0;opacity:.5}.content{flex:1;padding:24px;background:var(--primary-bg);overflow-x:hidden;min-height:calc(100vh - 150px)}.content-inner{max-width:1200px;margin:0 auto;width:100%}.footer{background:var(--footer-bg);border-top:1px solid var(--border-color);padding:20px;margin-top:auto}.footer-content{display:flex;justify-content:space-between;align-items:center;max-width:1200px;margin:0 auto;flex-wrap:wrap;gap:16px}.footer-links{display:flex;gap:16px;flex-wrap:wrap}.footer-links a{color:var(--text-secondary);text-decoration:none;font-size:13px;font-weight:500;transition:color .2s ease;white-space:nowrap}.footer-links a:hover{color:var(--accent-color)}.sidebar-overlay{position:fixed;inset:0;background:#0006;z-index:999;display:none}@media (max-width: 1024px){.sidebar{transform:translate(-100%);width:280px}.sidebar.open{transform:translate(0)}.sidebar-close{display:block}.main-content{margin-left:0;width:100%}.sidebar-toggle,.theme-toggle-mobile{display:block}.sidebar-overlay{display:block;opacity:0;pointer-events:none;transition:opacity .3s ease}.sidebar-overlay.visible{opacity:1;pointer-events:auto}.header h1{font-size:18px;max-width:200px}.user-name{display:none}.footer-content{flex-direction:column;text-align:center;gap:12px}.footer-links{justify-content:center}}@media (max-width: 768px){.content{padding:20px}.header{padding:0 16px;height:60px}.footer{padding:16px}.user-button{padding:6px 10px}.user-avatar{width:32px;height:32px;font-size:12px}.header h1{font-size:16px;max-width:150px}}@media (max-width: 640px){.content{padding:16px}.header{padding:0 12px;height:56px}.footer{padding:12px}.header h1{font-size:15px;max-width:120px}.dropdown-menu{min-width:180px;right:-8px}.header-right{gap:8px}}@media (max-width: 480px){.sidebar{width:260px}.content{padding:12px}.header{padding:0 8px}.footer{padding:8px 12px}.footer-links{gap:12px}.footer-links a{font-size:12px}.header h1{font-size:14px;max-width:100px}.user-button{padding:4px 8px}.theme-toggle-mobile,.sidebar-toggle{padding:6px}}@media (max-width: 360px){.header h1{font-size:13px;max-width:80px}.content,.footer{padding:8px}.footer-links{gap:8px}.footer-links a{font-size:11px}}@media (max-height: 500px) and (orientation: landscape){.header{height:50px}.content{min-height:calc(100vh - 110px);padding:12px}.footer{padding:12px}}.sidebar::-webkit-scrollbar{width:4px}.sidebar::-webkit-scrollbar-track{background:var(--secondary-bg)}.sidebar::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:2px}.sidebar::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}.layout *{transition:background-color .3s ease,color .3s ease,border-color .3s ease}.sidebar,.header,.footer,.content,.dropdown-menu,.theme-toggle{transition:background-color .3s ease,border-color .3s ease}.sidebar{z-index:1000}.header{z-index:100}.dropdown-menu{z-index:1000}.sidebar-overlay{z-index:999}.layout{overflow-x:hidden}.main-content{min-width:0}@media (hover: none) and (pointer: coarse){.nav-item:hover,.dropdown-item:hover,.user-button:hover{transform:none}.nav-item:active,.dropdown-item:active,.user-button:active{background:var(--hover-bg)}}@media (prefers-contrast: high){.nav-item,.dropdown-item,.user-button{border-width:2px}}@media (prefers-reduced-motion: reduce){.layout *{transition:none!important;animation:none!important}.sidebar,.main-content{transition:none}}.loading-spinner-fullscreen{position:fixed;inset:0;background:var(--overlay-bg, rgba(255, 255, 255, .9));display:flex;align-items:center;justify-content:center;z-index:9999;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.dark-theme .loading-spinner-fullscreen{background:var(--overlay-bg, rgba(0, 0, 0, .8))}.spinner-container{text-align:center}.loading-spinner{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:20px}.inline-spinner{display:inline-flex;align-items:center;justify-content:center}.button-spinner{display:inline-flex;align-items:center;justify-content:center;margin-right:8px}.spinner{border-radius:50%;animation:spin 1s linear infinite;margin:0 auto}.spinner-small{width:16px;height:16px;border-width:2px}.spinner-medium{width:32px;height:32px;border-width:3px}.spinner-large{width:48px;height:48px;border-width:4px}.spinner-xlarge{width:64px;height:64px;border-width:4px}.spinner-primary{border:2px solid var(--spinner-track, #f3f3f3);border-top:2px solid var(--accent-color, #3498db)}.spinner-secondary{border:2px solid var(--spinner-track, #f3f3f3);border-top:2px solid var(--secondary-color, #6c757d)}.spinner-light{border:2px solid rgba(255,255,255,.3);border-top:2px solid rgba(255,255,255,.8)}.spinner-dark{border:2px solid rgba(0,0,0,.1);border-top:2px solid rgba(0,0,0,.6)}.loading-text{margin:16px 0 0;color:var(--text-secondary, #666666);font-size:14px;font-weight:500}.dark-theme .loading-text{color:var(--text-secondary, #b0b0b0)}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.spinner-pulse{animation:pulse 1.5s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.wave-spinner{display:flex;align-items:center;justify-content:center;gap:4px}.wave-dot{width:8px;height:8px;border-radius:50%;background-color:var(--accent-color, #3498db);animation:wave 1.4s ease-in-out infinite}.wave-dot:nth-child(1){animation-delay:-.32s}.wave-dot:nth-child(2){animation-delay:-.16s}.wave-dot:nth-child(3){animation-delay:0s}@keyframes wave{0%,80%,to{transform:scale(0);opacity:.5}40%{transform:scale(1);opacity:1}}.dark-theme .spinner-primary{border-color:var(--spinner-track, #3a3a3a);border-top-color:var(--accent-color, #3498db)}.dark-theme .spinner-secondary{border-color:var(--spinner-track, #3a3a3a);border-top-color:var(--secondary-color, #6c757d)}