body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial;margin:0;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh}.app{max-width:800px;margin:0 auto;padding:20px}header{background:#fff;border-radius:12px;padding:20px;margin-bottom:24px;box-shadow:0 4px 6px #0000001a}.header-content{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px}h1{margin:0;color:#667eea}h2{margin:0 0 16px;color:#333}p{color:#555;margin:0}.user-info{display:flex;align-items:center;gap:12px}.username{font-weight:500;color:#333}.logout-btn{padding:8px 16px;background:#d64545;color:#fff;border:none;border-radius:6px;cursor:pointer;font-size:.9rem;transition:background .2s}.logout-btn:hover{background:#b73838}.error{color:#d64545;font-weight:500}.welcome-message{background:#fff;border-radius:12px;padding:40px;text-align:center;box-shadow:0 4px 6px #0000001a;margin-bottom:24px}.welcome-message h2{font-size:2rem}.welcome-message p{font-size:1.1rem;color:#666}.software-list-widget{background:#fff;border-radius:12px;padding:24px;box-shadow:0 4px 6px #0000001a}.software-list-widget h3{margin:0 0 20px;color:#667eea;font-size:1.5rem}.software-list-widget iframe{width:100%;height:600px;border-radius:8px;border:0px solid #e0e0e0}.search-bar{margin-bottom:20px}.search-input{width:100%;padding:12px 16px;font-size:1rem;border:2px solid #e0e0e0;border-radius:8px;outline:none;transition:border-color .2s;box-sizing:border-box}.search-input:focus{border-color:#667eea}.search-input::placeholder{color:#999}