:root{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#1a1a1a;background-color:#f8fafc;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;--primary: #4f46e5;--primary-hover: #4338ca;--bg-card: #ffffff;--text-muted: #64748b;--border: #e2e8f0;--shadow: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1)}@media(prefers-color-scheme:dark){:root{color:#f1f5f9;background-color:#0f172a;--bg-card: #1e293b;--text-muted: #94a3b8;--border: #334155}}body{margin:0;display:flex;min-width:320px;min-height:100vh}#root{width:100%}.container{max-width:1000px;margin:0 auto;padding:2rem;display:flex;flex-direction:column;min-height:100vh}header{text-align:center;margin-bottom:3rem}.logo{display:flex;align-items:center;justify-content:center;gap:.75rem;margin-bottom:.5rem}header h1{font-size:2.5rem;font-weight:800;margin:0;background:linear-gradient(to right,var(--primary),#818cf8);-webkit-background-clip:text;-webkit-text-fill-color:transparent}header p{color:var(--text-muted);font-size:1.1rem}.filter-wrapper{margin-bottom:2.5rem;display:flex;flex-direction:column;align-items:center;gap:1.5rem}.filters{display:flex;gap:1rem;width:100%;max-width:600px}.filters select{flex:1;padding:.75rem 1rem;font-size:1.1rem;border:2px solid var(--border);border-radius:12px;background-color:var(--bg-card);color:inherit;cursor:pointer;transition:all .2s ease;box-shadow:var(--shadow)}.filters select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px #4f46e51a}.filters select:disabled{opacity:.5;cursor:not-allowed}.search-bar{position:relative;width:100%;max-width:600px}.search-icon{position:absolute;left:1.25rem;top:50%;transform:translateY(-50%);color:var(--text-muted)}.search-bar input{width:100%;padding:1rem 1rem 1rem 3.5rem;font-size:1.25rem;border:2px solid var(--border);border-radius:12px;background-color:var(--bg-card);color:inherit;transition:all .2s ease;box-shadow:var(--shadow);box-sizing:border-box}.search-bar input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px #4f46e51a,var(--shadow-lg)}.results-container{flex-grow:1}.student-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.5rem}.student-card{background-color:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:1.5rem;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease}.student-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.card-header{display:flex;align-items:center;gap:1rem;margin-bottom:1.25rem;padding-bottom:1rem;border-bottom:1px solid var(--border)}.user-icon{color:var(--primary);background:#4f46e51a;padding:8px;border-radius:12px}.student-name{font-size:1.5rem;font-weight:700}.card-body{display:grid;grid-template-columns:repeat(3,1fr);gap:.5rem}.info-item{display:flex;flex-direction:column;align-items:center;gap:.25rem;color:var(--text-muted);font-size:.9rem}.info-item span{color:inherit;font-weight:600}.info-item svg{margin-bottom:2px}.welcome-message,.no-results{text-align:center;padding:4rem 2rem;color:var(--text-muted)}.placeholder-icon{margin-bottom:1rem;opacity:.3}footer{text-align:center;margin-top:4rem;padding:2rem 0;border-top:1px solid var(--border);color:var(--text-muted);font-size:.9rem}@media(max-width:640px){.container{padding:1rem}header h1{font-size:2rem}.student-grid{grid-template-columns:1fr}}