:root{--bg-main: #0f172a;--bg-card: rgba(30, 41, 59, .7);--bg-card-hover: rgba(51, 65, 85, .8);--border-color: rgba(255, 255, 255, .1);--border-accent: rgba(99, 102, 241, .3);--primary: #6366f1;--primary-hover: #4f46e5;--primary-glow: rgba(99, 102, 241, .4);--success: #10b981;--success-bg: rgba(16, 185, 129, .15);--success-border: rgba(16, 185, 129, .3);--danger: #ef4444;--danger-bg: rgba(239, 68, 68, .15);--danger-border: rgba(239, 68, 68, .3);--warning: #f59e0b;--warning-bg: rgba(245, 158, 11, .15);--text-main: #f8fafc;--text-muted: #94a3b8;--text-dim: #64748b;--font-family: "Inter", system-ui, -apple-system, sans-serif;--font-heading: "Outfit", "Inter", system-ui, sans-serif;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 20px;--radius-full: 9999px;--shadow-glow: 0 10px 30px -10px rgba(99, 102, 241, .3)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-family);background-color:var(--bg-main);color:var(--text-main);min-height:100vh;background-image:radial-gradient(at 0% 0%,rgba(99,102,241,.12) 0px,transparent 50%),radial-gradient(at 100% 100%,rgba(16,185,129,.08) 0px,transparent 50%),radial-gradient(at 50% 50%,rgba(15,23,42,1) 0px,transparent 100%);background-attachment:fixed;-webkit-font-smoothing:antialiased}#root{min-height:100vh;display:flex;flex-direction:column}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);letter-spacing:-.02em}a{color:inherit;text-decoration:none}button{font-family:inherit;cursor:pointer;border:none;outline:none}.glass-card{background:var(--bg-card);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border-color);border-radius:var(--radius-lg);box-shadow:0 8px 32px #0000005e;transition:all .3s ease}.glass-card:hover{border-color:var(--border-accent)}.container{max-width:1200px;margin:0 auto;padding:0 1.5rem;width:100%}.main-content{flex:1;padding:2rem 0}.navbar{background:#0f172ad9;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border-color);position:sticky;top:0;z-index:100}.nav-container{display:flex;justify-content:space-between;align-items:center;height:70px}.nav-brand{display:flex;align-items:center;gap:.75rem;font-size:1.35rem;font-weight:700;font-family:var(--font-heading);background:linear-gradient(135deg,#a5b4fc,#818cf8,#38bdf8);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.nav-links{display:flex;align-items:center;gap:1.5rem}.nav-link{display:flex;align-items:center;gap:.5rem;padding:.5rem 1rem;border-radius:var(--radius-md);color:var(--text-muted);font-weight:500;transition:all .2s ease}.nav-link:hover,.nav-link.active{color:var(--text-main);background:#ffffff0d}.user-badge{display:flex;align-items:center;gap:.75rem;padding:.4rem .8rem;background:#ffffff0a;border:1px solid var(--border-color);border-radius:var(--radius-full)}.role-pill{padding:.2rem .6rem;border-radius:var(--radius-full);font-size:.75rem;font-weight:600;text-transform:uppercase}.role-pill.admin{background:#f59e0b33;color:#fbbf24;border:1px solid rgba(245,158,11,.4)}.role-pill.student{background:#6366f133;color:#a5b4fc;border:1px solid rgba(99,102,241,.4)}.btn-logout{background:#ef444426;color:#fca5a5;border:1px solid rgba(239,68,68,.3);padding:.4rem .9rem;border-radius:var(--radius-md);font-weight:500;transition:all .2s ease;display:flex;align-items:center;gap:.4rem}.btn-logout:hover{background:#ef44444d;color:#fff}.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-hover));color:#fff;padding:.75rem 1.5rem;border-radius:var(--radius-md);font-weight:600;box-shadow:0 4px 14px 0 var(--primary-glow);transition:all .2s ease;display:inline-flex;align-items:center;justify-content:center;gap:.5rem}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 20px 0 var(--primary-glow)}.btn-secondary{background:#ffffff14;color:var(--text-main);border:1px solid var(--border-color);padding:.75rem 1.5rem;border-radius:var(--radius-md);font-weight:500;transition:all .2s ease;display:inline-flex;align-items:center;justify-content:center;gap:.5rem}.btn-secondary:hover{background:#ffffff1f}.badge-status{padding:.35rem .85rem;border-radius:var(--radius-full);font-size:.85rem;font-weight:600;display:inline-flex;align-items:center;gap:.4rem}.badge-status.approved{background:var(--success-bg);color:#34d399;border:1px solid var(--success-border)}.badge-status.already-scanned{background:var(--danger-bg);color:#f87171;border:1px solid var(--danger-border)}.badge-status.pending{background:var(--warning-bg);color:#fbbf24;border:1px solid rgba(245,158,11,.3)}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:1.5rem}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem}@media (max-width: 900px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}.form-group{display:flex;flex-direction:column;gap:.5rem;margin-bottom:1.2rem}.form-group label{font-size:.9rem;font-weight:500;color:var(--text-muted)}.input-control{background:#0f172a99;border:1px solid var(--border-color);border-radius:var(--radius-md);padding:.75rem 1rem;color:var(--text-main);font-size:1rem;transition:all .2s ease}.input-control:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px #6366f140}.alert{padding:1rem;border-radius:var(--radius-md);margin-bottom:1.2rem;display:flex;align-items:center;gap:.75rem;font-size:.95rem}.alert-error{background:#ef444426;border:1px solid rgba(239,68,68,.3);color:#fca5a5}.alert-success{background:#10b98126;border:1px solid rgba(16,185,129,.3);color:#6ee7b7}@keyframes scannerPulse{0%{box-shadow:0 0 #6366f180}70%{box-shadow:0 0 0 15px #6366f100}to{box-shadow:0 0 #6366f100}}.scanner-active{animation:scannerPulse 2s infinite}