:root{
  --bg:#ffffff;
  --text:#0f1720;
  --muted:#6b7280;
  --blue:#eb3535; /* bright tracking blue */
  --light-gray:#eef2f6;
  --card:#ffffff;
  --line:#e6e9ef;
}

*{box-sizing:border-box}
html,body{height:100%}    

header{
  width:100%;
}

/* page container */
.page {
  max-width:980px;
  margin:32px auto;
  padding:0px;
}

/* header (keeps minimal) */
.brand{font-weight:700; font-size:1.2rem}    

/* hero section */
.hero-track {
  margin-bottom:28px;
}
.hero-track h1{
  font-size:48px;
  line-height:1.02;
  margin:0 0 12px 0;
  font-weight:800;
  letter-spacing:-0.02em;
}
.hero-track p{
  margin:0 0 20px 0;
  color:var(--muted);
  font-size:18px;
}

/* input row */
.track-row{
  display:flex;
  gap:14px;
  align-items:center;
  margin-bottom:18px;
}
.track-input{
  flex:1;
  display:flex;
  align-items:center;
  background: #fff;
  border:1px solid #d9dce3;
  border-radius:12px;
  padding:10px 14px;
  min-height:56px;
}
.track-input input{
  border:0;
  outline:0;
  font-size:16px;
  width:100%;
  color:var(--text);
  background:transparent;
}
.btn-track{
  background:var(--blue);
  color:#fff;
  border:none;
  padding:14px 26px;
  border-radius:12px;
  font-weight:600;
  font-size:16px;
  cursor:pointer;
  box-shadow: 0 6px 18px rgba(29,99,255,0.16);
}
.help{
  margin-top:6px;
  color:var(--muted);
  font-size:14px;
}
.help a{
  color:var(--blue); text-decoration:none;
}

/* timeline layout */
.timeline-wrap{
  display:flex;
  gap:28px;
  margin-top:26px;
  align-items:flex-start;
}

.step{
  width:18px;
  height:18px;
  border-radius:50%;
  background: #fff;
  border:2px solid #d7dbe2;
  display:block;
  margin:18px 0;
  box-sizing:border-box;
  position:relative;
  z-index:2;
}

.step.completed{
  background:#fff;
  border-color:#9aa6b8;
}
.step.active{
  background:var(--blue);
  border-color:var(--blue);
  box-shadow: 0 4px 12px rgba(29,99,255,0.18);
}

/* labels area */
.labels{
  flex:1;
}
.label-item{
  padding:8px 45px 24px 0;
  min-height:64px;
  display: inline-block;
}
.label-item h4{
  margin:0;
  font-size:20px;
  font-weight:700;
}
.label-item .date{
  color:var(--muted);
  margin-top:6px;
  font-size:14px;
}

.arrow{
  font-size: 3em;
}

/* responsive: stack input and button */
@media (max-width:720px){
  .hero-track h1{font-size:40px}
  .track-row{flex-direction:column; align-items:stretch}
  .btn-track{width:100%}
  .timeline-wrap{flex-direction:row; gap:14px}      
}

/* small screens: collapse labels below timeline */
@media (max-width:520px){
  .timeline-wrap{flex-direction:column; align-items:flex-start}
  .labels{order:1}
}