@media (max-width: 600px){h1{font-size:2em}h2{font-size:1.3em}h3{font-size:1.1em}form{padding:1.2rem .7rem;max-width:98vw}section{padding:1.2rem .7rem;max-width:98vw}}body{margin:0;font-family:system-ui,sans-serif;background:#181c24;color:#e0e6ed}h1,h2,h3{color:#4f8cff}form{display:flex;flex-direction:column;gap:1rem;max-width:340px;margin:2rem auto;background:#232a3b;padding:2rem;border-radius:10px;box-shadow:0 2px 12px #0000001a}input,textarea,button{padding:.6rem;border-radius:5px;border:1px solid #3a4256;background:#181c24;color:#e0e6ed;font-size:1rem}input:focus,textarea:focus{outline:2px solid #4f8cff;border-color:#4f8cff}button{background:#204080;color:#fff;border:none;cursor:pointer;font-weight:500;transition:background .2s}button:hover{background:#4f8cff;color:#181c24}section{max-width:600px;margin:2rem auto;background:#232a3b;padding:2rem;border-radius:10px;box-shadow:0 2px 12px #0000001a}a:hover{color:#747bff}.table-scroll{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}table{width:100%;border-collapse:collapse;min-width:600px}@media (max-width: 600px){.table-scroll{margin-bottom:1rem;border-radius:6px;box-shadow:0 1px 4px #00000012;background:#fff}table{min-width:400px;font-size:14px}}html,body,#root{width:100vw;min-width:0;box-sizing:border-box;overflow-x:hidden}main{width:100vw;min-width:0;box-sizing:border-box;overflow-x:hidden}.course-list{width:100%;max-width:900px;margin:0 auto;padding:0 1rem}@media (max-width: 600px){nav{flex-direction:column;gap:.5rem;padding:1rem .5rem;font-size:1rem}main{padding:1rem .2rem;width:100vw!important;min-width:0!important;box-sizing:border-box!important;overflow-x:hidden!important}.course-list{padding:0 .2rem}.course-grid{grid-template-columns:1fr;gap:1rem}.course-card{padding:1.2rem .7rem}form{padding:1.2rem .7rem;max-width:98vw}section{padding:1.2rem .7rem;max-width:98vw}html,body,#root{width:100vw!important;min-width:0!important;overflow-x:hidden!important}}body{background:#181c24;color:#e0e6ed}main{padding:2rem;min-height:80vh}nav{display:flex;gap:1.5rem;background:#232a3b;color:#fff;padding:1.2rem 2rem;align-items:center;font-size:1.1rem;box-shadow:0 2px 8px #00000014}nav a{color:#e0e6ed;text-decoration:none;font-weight:500;transition:color .2s}nav a:hover{color:#4f8cff}footer{text-align:center;padding:1rem;background:#232a3b;color:#b0b8c1;font-size:.95rem;letter-spacing:.5px}.course-list{width:100%;max-width:900px;margin:0 auto}.course-list-title{text-align:center;margin-bottom:2rem;color:#4f8cff}.course-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:2rem}.course-card{background:#232a3b;border-radius:10px;box-shadow:0 2px 12px #0000001a;padding:2rem 1.5rem;display:flex;flex-direction:column;align-items:flex-start;transition:transform .15s}.course-card:hover{transform:translateY(-4px) scale(1.03);box-shadow:0 4px 18px #4f8cff1a}.course-card h3{margin:0 0 .5rem;color:#e0e6ed}.course-card p{flex:1;color:#b0b8c1;margin-bottom:1.2rem}.course-link{background:#204080;color:#fff;padding:.5rem 1.2rem;border-radius:5px;text-decoration:none;font-weight:500;transition:background .2s;box-shadow:0 1px 4px #2040801a}.course-link:hover{background:#4f8cff;color:#181c24}