:root{
  --bg:#0b0b0b;
  --card:#1a1a1a;
  --border:#2c2c2c;
  --text:#fff;
  --muted:#aaa;
  --accent:#f1c40f;
}

body{
  background:var(--bg);
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:16px;
  color:var(--text);
}

.container{
  max-width:800px;
  width:100%;
  background:var(--card);
  padding:32px;
  border-radius:20px;
  border:1px solid var(--border);
  box-shadow:0 20px 40px rgba(0,0,0,.5);
}

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

.step-indicator{color:var(--muted)}

.step{display:none; animation:fade .3s ease}
.step.active{display:block}

@keyframes fade{
  from{opacity:0;transform:translateY(10px)}
  to{opacity:1}
}

.cards{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(140px,1fr));
  gap:24px;
  text-align:center;
  margin-top:10px;
}

.card{
  position:relative;
  background:linear-gradient(180deg,#121212,#0c0c0c);
  border:1px solid var(--border);
  border-radius:20px;
  padding:26px;
  cursor:pointer;
  transition:all .35s ease;
  overflow:hidden;
}

.card::before{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(circle at top,rgba(241,196,15,.15),transparent 60%);
  opacity:0;
  transition:.35s;
}

.card:hover::before{
  opacity:1;
}

.card:hover{
  transform:translateY(-10px) scale(1.02);
  box-shadow:0 20px 40px rgba(0,0,0,.6);
}

.card.selected{
  border-color:var(--accent);
  box-shadow:
    0 0 0 2px rgba(241,196,15,.4),
    0 25px 50px rgba(241,196,15,.15);
}

.card-header{
  display:flex;
  justify-content:space-between;
  align-items:center;
  margin-bottom:14px;
}

.card-header i{
  font-size:1.8rem;
  color:var(--accent);
}

.badge{
  background:rgba(241,196,15,.15);
  color:var(--accent);
  padding:4px 10px;
  border-radius:12px;
  font-size:.75rem;
  font-weight:600;
}

.card h4{
  color:white;
  font-size:1.2rem;
  margin-bottom:10px;
}
.card p{
  color:white;
}

.price{
  font-size:2.2rem;
  font-weight:800;
  color:var(--accent);
  margin-bottom:6px;
}

.desc{
  color:var(--muted);
  font-size:.9rem;
}

/* Click ripple effect */
.card:active{
  transform:scale(.98);
}

.actions{
  display:flex;
  justify-content:space-between;
  margin-top:30px;
}

.actions button{
  padding:10px 22px;
  font-weight:600;
}

.back{background:#222;color:#fff}
.next{background:var(--accent);color:#000}

.password-tip{
  display:flex;
  align-items:center;
  gap:12px;
  padding:14px 18px;
  border-radius:14px;
  background:linear-gradient(135deg,rgba(241,196,15,.15),rgba(241,196,15,.05));
  border:1px solid rgba(241,196,15,.35);
  color:#f8e08e;
  font-size:.95rem;
  animation:glow 2.5s infinite alternate;
}

.password-tip i{
  font-size:1.3rem;
  color:var(--accent);
}

@keyframes glow{
  from{box-shadow:0 0 0 rgba(241,196,15,.3)}
  to{box-shadow:0 0 14px rgba(241,196,15,.35)}
}

.payment-box{
  display:none;
  margin-top:20px;
  padding:20px;
  border-radius:18px;
  background:linear-gradient(180deg,#111,#0b0b0b);
  border:1px solid var(--border);
  animation:fadeSlide .4s ease;
}

.payment-box.active{
  display:block;
}

.payment-header{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:600;
  margin-bottom:10px;
  color:var(--accent);
}

.payment-header i{
  font-size:1.4rem;
}

.payment-box p{
  margin:4px 0;
  color:var(--text);
  font-size:.95rem;
}

@keyframes fadeSlide{
  from{opacity:0; transform:translateY(10px)}
  to{opacity:1; transform:none}
}

.summary-wrapper{
  display:grid;
  gap:20px;
}

.summary-title{
  font-size:1.3rem;
  color:var(--accent);
  display:flex;
  align-items:center;
  gap:10px;
}

.summary-card{
  background:linear-gradient(180deg,#111,#0b0b0b);
  border:1px solid var(--border);
  border-radius:18px;
  padding:20px;
}

.summary-card h6{
  display:flex;
  align-items:center;
  gap:8px;
  margin-bottom:12px;
  color:var(--accent);
}

.summary-card p{
  margin:4px 0;
  color:var(--text);
  font-size:.95rem;
}

.color-preview{
  display:flex;
  gap:10px;
  margin-top:8px;
}

.color-preview span{
  width:28px;
  height:28px;
  border-radius:8px;
  border:1px solid var(--border);
}

.summary-note{
  background:rgba(241,196,15,.1);
  border:1px solid rgba(241,196,15,.3);
  padding:14px;
  border-radius:14px;
  display:flex;
  gap:10px;
  align-items:center;
  color:#f8e08e;
  font-size:.9rem;
}