.wrapper{width:100%;height:100vh;display:flex;justify-content:center;align-items:center;background:linear-gradient(135deg,#1e1e2f,#2b2b45);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.login-box{width:420px;padding:40px 35px;background:#ffffff1a;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-radius:18px;border:1px solid rgba(255,255,255,.18);box-shadow:0 8px 25px #00000040;display:flex;flex-direction:column}.title{text-align:center;color:#fff;font-size:2.1rem;font-weight:600;margin-bottom:28px}form label{color:#dcdcdc;font-size:.95rem;margin-bottom:6px;display:block}form input{width:100%;padding:12px 14px;margin-bottom:20px;background:#fff3;border:1px solid rgba(255,255,255,.25);border-radius:10px;color:#fff;font-size:1rem;outline:none;transition:.2s}form input:focus{background:#ffffff47;border-color:#9ecaff}button{width:100%;padding:12px;margin-top:5px;font-size:1.1rem;background:#4aa3ff;color:#fff;border:none;border-radius:12px;cursor:pointer;transition:background .2s}button:hover{background:#288eff}.error{width:100%;background:#ff505040;border:1px solid rgba(255,120,120,.5);color:#fdd;padding:10px 14px;border-radius:8px;margin-bottom:15px;text-align:center;font-size:.95rem}.dashboard-wrapper{padding:40px 20px;max-width:900px;margin:0 auto}.dashboard-title{font-size:36px;font-weight:700;margin-bottom:30px;text-align:center}.dashboard-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:20px}.dash-card{background:#fff;border-radius:30px;padding:25px 20px;text-decoration:none;color:#000;text-align:center;box-shadow:0 10px 25px #00000014;transition:transform .15s ease,box-shadow .15s ease}@media(prefers-color-scheme:dark){.dash-card{background:#222;color:#fff;box-shadow:0 10px 25px #0006}}.dash-card:hover{transform:translateY(-4px);box-shadow:0 15px 30px #00000029}.dash-icon{font-size:42px;margin-bottom:10px}.dash-label{font-size:18px;font-weight:600}.dash-green{background:linear-gradient(135deg,#4cd964,#3ecb56)}.dash-blue{background:linear-gradient(135deg,#5ac8fa,#4ab8ea)}.dash-orange{background:linear-gradient(135deg,#ff9500,#e68600)}.dash-purple{background:linear-gradient(135deg,#af52de,#9b41ca)}.dash-card .dash-label,.dash-card .dash-icon{color:#fff}@media(prefers-color-scheme:dark){.dash-card .dash-label,.dash-card .dash-icon{color:#fff}}.participants-page{padding:30px}.title{font-size:2rem;margin-bottom:20px}.participants-table{width:100%;border-collapse:collapse;background:#fff;border-radius:12px;overflow:hidden}.participants-table th{background:#f0f0f0;text-align:left;padding:12px;font-weight:700}.participants-table td{padding:12px;border-top:1px solid #ddd}tr:nth-child(2n){background:#fafafa}.loader{padding:40px;font-size:1.3rem}.sidebar{width:260px;background:#1f2937;color:#fff;display:flex;flex-direction:column;padding:20px}.sidebar .logo{font-size:24px;font-weight:700;margin-bottom:32px}.sidebar nav a{color:#d1d5db;text-decoration:none;display:block;margin:12px 0;font-size:18px}.sidebar nav a:hover{color:#fff}.header{padding:16px 24px;background:#fff;box-shadow:0 2px 5px #0000000f;display:flex;justify-content:space-between;align-items:center}.title{font-size:24px;font-weight:600}.layout{display:flex;height:100vh;background:#f5f7fa}.main-area{flex:1;display:flex;flex-direction:column}.content{padding:24px;overflow-y:auto}.course-page{padding:20px}:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}