: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}}body{margin:0;padding:0;display:flex;justify-content:center;align-items:flex-start;min-height:100vh;background-color:#f5f5f5;font-family:Arial,sans-serif}.app-container{text-align:center;margin:0 auto;padding:20px;max-width:980px}.app-top{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:20px}.userbox{display:flex;gap:8px;align-items:center}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.course-card{background:#fff;border:1px solid #e8e8e8;border-radius:10px;padding:14px;text-align:left;box-shadow:0 1px 4px #0000000f}.course-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:8px}.course-row{display:flex;justify-content:space-between;margin:8px 0}.course-row.list-row{display:flex;align-items:flex-start;gap:.75rem}.course-row.list-row .label{min-width:90px;padding-top:.2em}.status-text{margin-top:.5rem;text-align:left}.muted{color:#666;font-size:14px}.chips{display:flex;flex-wrap:wrap;gap:.5rem}.chip{background:#f0f0f0;border-radius:16px;padding:4px 8px;font-size:12px}.chip.swapped{background-color:#ffd54f}.chip.free{background-color:#c8e6c9;font-style:italic}.actions{display:flex;gap:8px;margin-top:12px}button{padding:8px 10px;border:1px solid #ddd;border-radius:8px;background:#fff;cursor:pointer}button:hover{background:#f3f3f3}button.secondary{border-color:#b3c7ff;background:#eef3ff}button.danger{border-color:#ffc0c0;background:#fff0f0}button:disabled{opacity:.6;cursor:not-allowed}.not-enrolled{margin-top:8px;font-size:12px;color:#888}.login-wrap{background:#fff;border:1px solid #e8e8e8;border-radius:10px;padding:20px;max-width:420px;margin:40px auto 0;box-shadow:0 1px 4px #0000000f}.todo-form{display:flex;flex-direction:column;gap:8px}.todo-form input{padding:10px;border-radius:8px;border:1px solid #ddd}.modal-backdrop{position:fixed;inset:0;background:#0006;display:grid;place-items:center;z-index:1000}.modal{background:#fff;padding:16px 20px;border-radius:8px;max-width:480px;width:90%;box-shadow:0 10px 30px #0003}.modal-actions{margin-top:16px;display:flex;gap:8px;justify-content:flex-end}.app-footer{margin-top:2rem;padding-top:1rem;border-top:1px solid #e8e8e8;font-size:14px;color:#666}.app-footer a{color:#555;text-decoration:none;cursor:pointer}.app-footer a:hover{text-decoration:underline}.app-footer .sep{margin:0 .5rem}.legal-page{text-align:left;max-width:640px;margin:0 auto}.legal-page h1{margin-bottom:.5rem}.legal-page h2{font-size:1rem;margin:1.25rem 0 .5rem;color:#333}.legal-page section p{margin:0 0 .5rem;font-size:14px;line-height:1.5}.legal-page section a{color:#555;text-decoration:underline}.legal-page section a:hover{color:#333}.legal-back{margin-bottom:1rem}.legal-back a{color:#666;text-decoration:none;font-size:14px}.legal-back a:hover{text-decoration:underline}.legal-nav{margin-top:2rem;padding-top:1rem;border-top:1px solid #e8e8e8;font-size:14px}.legal-nav a{color:#555;text-decoration:none}.legal-nav a:hover{text-decoration:underline}.legal-nav .sep{margin:0 .5rem}@media(max-width:1023px){.grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:640px){.app-container{max-width:100%;padding:16px}.grid{grid-template-columns:1fr}.login-wrap{margin:16px auto 0}}