:root{--background:#0a0a0a;--foreground:#ededed;--primary:#ff4500;--primary-hover:tomato;--secondary:#1f1f1f;--accent:#00ced1;--border:#333;--card-bg:#1e1e1e99;--glass-border:#ffffff1a}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--background);color:var(--foreground);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;overflow-x:hidden}a{color:inherit;text-decoration:none}.container{max-width:1200px;margin:0 auto;padding:0 1rem}.btn{cursor:pointer;border:none;border-radius:.5rem;justify-content:center;align-items:center;min-height:44px;padding:.75rem 1.5rem;font-size:1rem;font-weight:600;transition:all .2s;display:inline-flex}.btn-primary{background:linear-gradient(135deg,var(--primary),#ff8c00);color:#fff;box-shadow:0 4px 15px #ff45004d}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px #ff450066}.card{background:var(--card-bg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--glass-border);border-radius:1rem;padding:1.5rem;box-shadow:0 4px 6px #0000001a}html[data-low-gpu="1"]{--card-bg:#1e1e1ef0;--glass-border:#ffffff1f}html[data-low-gpu="1"] :where(.card,[class*=chartContainer],[class*=tableContainer]){background:#1e1e1ef0!important;box-shadow:0 2px 10px #00000038!important}html[data-low-gpu="1"] :where([class*=bottomNav],[class*=studentBottomNav],[class*=settingsMobileActionDock]){background:#141414fa!important;box-shadow:0 -2px 12px #00000047!important}html[data-low-gpu="1"] :where(.btn,[class*=navItem],[class*=actionBtn],[class*=card]){transition-property:color,background-color,border-color,opacity,box-shadow!important}html[data-low-gpu="1"] :where(.btn-primary:hover,[class*=navItemActive] svg){filter:none!important;transform:none!important}.input{background:var(--secondary);border:1px solid var(--border);color:#fff;border-radius:.5rem;width:100%;min-height:44px;margin-bottom:1rem;padding:.75rem;font-size:1rem;transition:border-color .2s}.input:focus{border-color:var(--primary);outline:none}.title{background:linear-gradient(90deg,#fff,#aaa);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;margin-bottom:1.5rem;font-size:1.5rem;font-weight:700}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:#333;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#555}*{scrollbar-width:thin;scrollbar-color:#333 transparent}@keyframes pulse{0%{opacity:1}50%{opacity:.5}to{opacity:1}}.skeleton{background:#ffffff0d;border-radius:4px;width:100%;height:20px;animation:1.5s ease-in-out infinite pulse}.skeleton-row td{border-bottom:1px solid #333;padding:1rem}