css /* ===================================    TurnTrack v1.1    style.css =================================== */  *{     margin:0;     padding:0;     box-sizing:border-box; }  body{     font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;     background:#0f172a;     color:#f8fafc;     padding:20px;     max-width:700px;     margin:auto; }  .header{     text-align:center;     margin-bottom:20px; }  .header h1{     font-size:34px;     color:#38bdf8; }  .subtitle{     color:#94a3b8;     margin-top:6px; }  .utc-card, .flight-card, .timeline, .actions{     background:#1e293b;     border-radius:14px;     padding:18px;     margin-bottom:20px;     box-shadow:0 4px 12px rgba(0,0,0,.35); }  .utc-card{     text-align:center; }  #utcClock{     font-size:42px;     font-weight:bold;     color:#22c55e;     margin-top:10px;     letter-spacing:2px; }  .flight-card input{     width:100%;     padding:14px;     margin-top:10px;     border:none;     border-radius:10px;     background:#334155;     color:white;     font-size:17px; }  .flight-card input::placeholder{     color:#cbd5e1; }  .events h3{     margin:18px 0 10px;     color:#cbd5e1; }  .button-grid{     display:grid;     grid-template-columns:1fr;     gap:10px; }  .eventButton{     border:none;     border-radius:12px;     padding:18px;     font-size:18px;     font-weight:600;     color:white;     cursor:pointer;     transition:.2s; }  .eventButton:active{     transform:scale(.97); }  .green{     background:#16a34a; }  .blue{     background:#2563eb; }  .orange{     background:#ea580c; }  table{     width:100%;     border-collapse:collapse; }  th{     text-align:left;     color:#38bdf8;     padding-bottom:12px;     border-bottom:1px solid #334155; }  td{     padding:12px 0;     border-bottom:1px solid #334155; }  .actions{     display:grid;     grid-template-columns:1fr 1fr;     gap:12px; }  .actions button{     border:none;     border-radius:12px;     padding:16px;     font-size:17px;     font-weight:600;     cursor:pointer;     color:white; }  #shareButton{     background:#2563eb; }  #csvButton{     background:#16a34a; }  #undoButton{     background:#d97706; }  #newFlightButton{     background:#dc2626; }  footer{     text-align:center;     color:#94a3b8;     margin:25px 0; }  @media (max-width:600px){      body{         padding:14px;     }      #utcClock{         font-size:36px;     }      .actions{         grid-template-columns:1fr;     }  }