*{
  margin:0;
  padding:0;
  box-sizing:border-box;
  -webkit-tap-highlight-color:transparent;
}

html,body{
  width:100%;
  min-height:100%;
  font-family:Arial, Helvetica, sans-serif;
  background:#0f0f10;
  color:#fff;
}

body{
  padding:24px 18px 34px;
}

a{
  color:inherit;
  text-decoration:none;
}

button{
  font:inherit;
}

.page{
  max-width:760px;
  margin:0 auto;
}

.top-bar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:24px;
}

.back-btn{
  width:56px;
  height:56px;
  border-radius:50%;
  background:#181818;
  display:flex;
  align-items:center;
  justify-content:center;
  border:none;
  cursor:pointer;
  box-shadow:0 8px 22px rgba(0,0,0,.28);
}

.back-btn svg{
  width:26px;
  height:26px;
  fill:none;
  stroke:#fff;
  stroke-width:2.5;
  stroke-linecap:round;
  stroke-linejoin:round;
}

.top-title{
  font-size:30px;
  font-weight:700;
  letter-spacing:-0.8px;
  line-height:1.05;
}

.top-spacer{
  width:56px;
  height:56px;
}

.hero-card{
  background:linear-gradient(180deg,#171717 0%, #111 100%);
  border:1px solid rgba(255,255,255,.06);
  border-radius:28px;
  padding:22px 18px 20px;
  margin-bottom:22px;
  box-shadow:0 12px 30px rgba(0,0,0,.24);
}

.hero-title{
  font-size:28px;
  font-weight:700;
  line-height:1.05;
  letter-spacing:-0.8px;
  margin-bottom:10px;
}

.hero-text{
  font-size:15px;
  line-height:1.55;
  color:#b8b8b8;
}

.address-card{
  background:#171717;
  border:1px solid rgba(255,255,255,.06);
  border-radius:22px;
  padding:18px 16px;
  margin-bottom:22px;
}

.address-label{
  font-size:13px;
  color:#9d9d9d;
  margin-bottom:8px;
}

.address-value{
  font-size:16px;
  font-weight:700;
  line-height:1.5;
  color:#fff;
  word-break:break-word;
}

.section{
  margin-top:24px;
}

.section h2{
  font-size:24px;
  font-weight:700;
  letter-spacing:-0.5px;
  margin-bottom:14px;
}

.row{
  display:flex;
  gap:10px;
  margin-top:10px;
}

.box{
  flex:1;
  text-align:center;
  padding:16px 12px;
  background:#171717;
  border-radius:18px;
  cursor:pointer;
  border:2px solid transparent;
  color:#fff;
  font-size:17px;
  font-weight:700;
  transition:.16s ease;
}

.box.active{
  border:2px solid #fff;
  background:#202020;
}

.sub{
  display:flex;
  gap:10px;
  margin-top:12px;
  flex-wrap:wrap;
}

.sub div{
  flex:1 1 calc(50% - 10px);
  min-width:120px;
  padding:12px;
  text-align:center;
  background:#171717;
  border-radius:18px;
  cursor:pointer;
  color:#d3d3d3;
  font-weight:600;
  transition:.16s ease;
}

.sub .active{
  background:#f1f1f1;
  color:#111;
}

.chips{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:10px;
}

.chip{
  padding:12px 16px;
  border-radius:999px;
  background:#171717;
  display:inline-block;
  cursor:pointer;
  border:1px solid rgba(255,255,255,.06);
  color:#d7d7d7;
  font-size:15px;
  transition:.16s ease;
}

.chip.active{
  background:#f1f1f1;
  color:#111;
  border-color:#f1f1f1;
}

.total{
  margin-top:28px;
  padding:20px 18px;
  background:#171717;
  border-radius:22px;
  font-size:18px;
  font-weight:700;
  display:flex;
  align-items:center;
  justify-content:space-between;
  border:1px solid rgba(255,255,255,.06);
}

.total-label{
  color:#d6d6d6;
}

.total-price{
  font-size:28px;
  color:#fff;
  letter-spacing:-0.6px;
}

.summary{
  margin-top:14px;
  padding:18px;
  background:#141414;
  border-radius:20px;
  border:1px solid rgba(255,255,255,.05);
}

.summary-title{
  font-size:16px;
  font-weight:700;
  margin-bottom:10px;
}

.summary-text{
  font-size:14px;
  line-height:1.6;
  color:#a8a8a8;
}

.btn{
  margin-top:18px;
  width:100%;
  padding:18px;
  border:none;
  border-radius:20px;
  background:#f1f1f1;
  color:#111;
  font-size:20px;
  font-weight:700;
  cursor:pointer;
}

.note{
  margin-top:14px;
  font-size:13px;
  line-height:1.5;
  color:#8e8e8e;
}

@media (max-width:560px){
  .top-title{
    font-size:26px;
  }

  .hero-title{
    font-size:24px;
  }

  .section h2{
    font-size:22px;
  }

  .sub div{
    flex:1 1 100%;
  }

  .total-price{
    font-size:24px;
  }
}