*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:#0f172a;color:#e2e8f0;min-height:100vh}.app-container{max-width:1100px;margin:0 auto;padding:3rem 1.5rem;text-align:center}.app-container h1{font-size:2rem;margin-bottom:.5rem;color:#f8fafc}.subtitle{color:#94a3b8;margin-bottom:2.5rem;font-size:1rem}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.25rem}.card{background:#1e293b;border:1px solid #334155;border-radius:12px;padding:1.75rem 1.5rem;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;text-align:left}.card:hover{transform:translateY(-4px);box-shadow:0 8px 30px #0006;border-color:#6366f1}.card:focus-visible{outline:2px solid #818cf8;outline-offset:2px}.card-icon{font-size:2rem;margin-bottom:1rem}.card-title{font-size:1.05rem;font-weight:600;color:#f1f5f9;margin-bottom:.5rem;line-height:1.4}.card-url{font-size:.8rem;color:#64748b;word-break:break-all}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1000;background:#000000b3;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;padding:1.5rem;animation:fadeIn .2s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal-content{background:#1e293b;border:1px solid #334155;border-radius:16px;width:100%;max-width:960px;height:85vh;display:flex;flex-direction:column;overflow:hidden;animation:slideUp .25s ease;box-shadow:0 20px 60px #00000080}@keyframes slideUp{0%{transform:translateY(30px);opacity:0}to{transform:translateY(0);opacity:1}}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:1rem 1.5rem;border-bottom:1px solid #334155;flex-shrink:0}.modal-header h2{font-size:1.1rem;font-weight:600;color:#f1f5f9;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-right:1rem}.modal-close-btn{background:none;border:none;color:#94a3b8;font-size:1.25rem;cursor:pointer;padding:.25rem .5rem;border-radius:6px;transition:background .15s ease,color .15s ease;line-height:1;flex-shrink:0}.modal-close-btn:hover{background:#334155;color:#f8fafc}.modal-body{flex:1;overflow:hidden;position:relative}.modal-iframe{width:100%;height:100%;border:none}.iframe-loader{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.75rem;background:#1e293b;color:#94a3b8;font-size:.9rem;z-index:1}.spinner{width:32px;height:32px;border:3px solid #334155;border-top-color:#818cf8;border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.iframe-error{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.75rem;background:#1e293b;color:#94a3b8;font-size:1rem;z-index:1}.iframe-error span{font-size:2rem}.iframe-error a{color:#818cf8;text-decoration:none;font-weight:500}.iframe-error a:hover{text-decoration:underline}