:root{--bg-main: linear-gradient(135deg, #fdfbfb 0%, #ebedee 100%);--surface-bg: rgba(255, 255, 255, .85);--text-primary: #2d3436;--text-secondary: #636e72;--brand-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--brand-hover: linear-gradient(135deg, #764ba2 0%, #667eea 100%);--border-color: rgba(0, 0, 0, .05);--shadow-sm: 0 4px 6px rgba(0, 0, 0, .05);--shadow-md: 0 10px 20px rgba(0, 0, 0, .08)}[data-bs-theme=dark]{--bg-main: linear-gradient(135deg, #1e1e2f 0%, #151520 100%);--surface-bg: rgba(30, 30, 46, .85);--text-primary: #f8f9fa;--text-secondary: #adb5bd;--brand-primary: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);--brand-hover: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);--border-color: rgba(255, 255, 255, .05);--shadow-sm: 0 4px 6px rgba(0, 0, 0, .3);--shadow-md: 0 10px 20px rgba(0, 0, 0, .4)}body{background:var(--bg-main);color:var(--text-primary);font-family:Nunito,Segoe UI,sans-serif;min-height:100vh;overflow-x:hidden;transition:background .3s ease,color .3s ease}.glass-card{background:var(--surface-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--border-color);border-radius:1rem;box-shadow:var(--shadow-md);transition:transform .3s ease,box-shadow .3s ease}.glass-card:hover{transform:translateY(-5px);box-shadow:0 15px 30px #0000001a}.btn-gradient{background:var(--brand-primary);color:#fff;border:none;border-radius:.5rem;padding:.6rem 1.5rem;transition:all .3s ease}.btn-gradient:hover{background:var(--brand-hover);color:#fff;transform:scale(1.05)}.fade-in{animation:fadeIn .6s ease forwards}.slide-up{animation:slideUp .6s cubic-bezier(.16,1,.3,1) forwards}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--text-secondary);border-radius:10px}.sidebar-menu .list-group-item{color:var(--text-secondary);background:transparent;transition:all .3s ease;font-weight:600;font-size:.95rem;display:flex;align-items:center;border:none}.sidebar-menu .list-group-item .icon-nav{color:#a0aec0;font-size:1.1rem;transition:all .3s ease;width:25px;text-align:center}.sidebar-menu .list-group-item:hover{background:#667eea14!important;color:#667eea;transform:translate(5px)}.sidebar-menu .list-group-item:hover .icon-nav{color:#667eea}.sidebar-menu .active-nav{background:var(--brand-primary)!important;color:#fff!important;box-shadow:0 4px 15px #667eea59}.sidebar-menu .active-nav .icon-nav{color:#fff!important}[data-bs-theme=dark] .sidebar-menu .list-group-item{color:#cbd5e1}[data-bs-theme=dark] .sidebar-menu .list-group-item:hover{background:#ffffff0d!important;color:#4facfe}[data-bs-theme=dark] .sidebar-menu .list-group-item:hover .icon-nav{color:#4facfe}[data-bs-theme=dark] .sidebar-menu .active-nav{box-shadow:0 4px 15px #00f2fe33}