.checkout-head{
  padding: 28px 0 22px;
}

.checkout-kicker{
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .38em;
  color: rgba(255,255,255,.55);
}

.checkout-title{
  margin-top: 10px;
  font-size: 44px;
  line-height: 1.05;
  font-weight: 400;
  letter-spacing: .02em;
  color: rgba(255,255,255,.92);
}

.checkout-sub{
  margin-top: 10px;
  max-width: 70ch;
  color: rgba(255,255,255,.68);
  line-height: 1.75;
}

@media (max-width: 640px){
  .checkout-title{ font-size: 36px; }
}

/* Layout */
.checkout-grid{
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 18px;
}

@media (max-width: 1024px){
  .checkout-grid{ grid-template-columns: 1fr; }
}

/* Panels */
.panel{
  position: relative;
  overflow: hidden;
  border-radius: 26px;
  padding: 18px 18px;

  background: rgba(255,255,255,.010);
  border: 1px solid rgba(255,255,255,.08);

  box-shadow:
    0 18px 60px rgba(0,0,0,.55),
    inset 0 1px 0 rgba(255,255,255,.035);

  transform: translateZ(0);
}

.panel::before{
  content:"";
  position:absolute;
  inset:-2px;
  pointer-events:none;
  opacity:.26;
  background:
    radial-gradient(circle at 18% 22%, rgba(212,176,90,.10), transparent 60%),
    radial-gradient(circle at 82% 28%, rgba(231,211,154,.05), transparent 65%),
    radial-gradient(circle at 55% 115%, rgba(255,255,255,.02), transparent 70%);
  filter: blur(12px);
}

.panel-head{
  position: relative;
  z-index: 1;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 12px;
  padding: 6px 6px 14px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.panel-title{
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .28em;
  color: rgba(255,255,255,.70);
  font-weight: 900;
}

.panel-note{
  font-size: 12px;
  color: rgba(255,255,255,.55);
}

.panel-link{
  font-size: 12px;
  color: rgba(231,211,154,.82);
  border-bottom: 1px solid rgba(212,176,90,.28);
  padding-bottom: 2px;
  transition: color .2s ease, border-color .2s ease;
}
.panel-link:hover{
  color: rgba(231,211,154,.95);
  border-color: rgba(212,176,90,.55);
}

/* Empty state */
.empty-state{
  margin-top: 18px;
  padding: 18px 14px;
  border-radius: 22px;
  border: 1px solid rgba(255,255,255,.08);
  background: rgba(0,0,0,.20);
  display: none;
}

.empty-title{
  font-weight: 800;
  color: rgba(255,255,255,.86);
}
.empty-sub{
  margin-top: 6px;
  color: rgba(255,255,255,.62);
  line-height: 1.7;
  font-size: 13px;
}
.empty-cta{
  margin-top: 14px;
  display: inline-flex;
  align-items:center;
  justify-content:center;
  padding: 12px 14px;
  border-radius: 18px;
  font-weight: 800;
}

/* Cart list */
.cart-list{
  position: relative;
  z-index: 1;
  margin-top: 12px;
}

.cart-row{
  display:grid;
  grid-template-columns: 1fr auto;
  gap: 14px;
  padding: 14px 6px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}

.cart-name{
  font-weight: 800;
  color: rgba(255,255,255,.90);
  font-size: 14px;
}

.cart-sub{
  margin-top: 4px;
  color: rgba(255,255,255,.56);
  font-size: 12px;
}

.cart-right{
  text-align:right;
  min-width: 150px;
}

.cart-line{
  font-weight: 900;
  color: rgba(255,255,255,.86);
  font-size: 13px;
}

.qty{
  margin-top: 10px;
  display:inline-flex;
  align-items:center;
  gap: 8px;
  border: 1px solid rgba(255,255,255,.10);
  border-radius: 14px;
  padding: 6px 8px;
  background: rgba(255,255,255,.02);
}

.qty button{
  width: 28px;
  height: 28px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.02);
  color: rgba(255,255,255,.82);
  font-weight: 900;
  transition: transform .18s ease, border-color .25s ease;
}
.qty button:hover{
  transform: translateY(-1px);
  border-color: rgba(231,211,154,.28);
}
.qty span{
  min-width: 18px;
  text-align:center;
  font-weight: 900;
  color: rgba(255,255,255,.82);
  font-size: 12px;
}

/* Totals */
.totals{
  position: relative;
  z-index: 1;
  margin-top: 14px;
  padding: 14px 10px 10px;
  border-top: 1px solid rgba(255,255,255,.08);
}

.totals-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 8px 0;
  color: rgba(255,255,255,.72);
}

.totals-row strong{
  color: rgba(255,255,255,.92);
}

.totals-row--muted{
  color: rgba(255,255,255,.55);
}

.totals-row--grand{
  border-top: 1px solid rgba(255,255,255,.08);
  margin-top: 6px;
  padding-top: 12px;
  color: rgba(255,255,255,.78);
}

.totals-row--grand strong{
  font-weight: 900;
  letter-spacing: .02em;
}

.totals-hint{
  margin-top: 10px;
  font-size: 11px;
  color: rgba(255,255,255,.45);
  line-height: 1.6;
}

/* Form */
.form{
  position: relative;
  z-index: 1;
  margin-top: 16px;
  display:flex;
  flex-direction: column;
  gap: 14px;
}

.field label{
  display:block;
  font-size: 12px;
  color: rgba(255,255,255,.62);
  margin: 0 0 6px 6px;
  letter-spacing: .02em;
  font-weight: 700;
}

.field input,
.field textarea{
  width: 100%;
  border-radius: 18px;
  padding: 12px 14px;

  background: rgba(255,255,255,.02);
  border: 1px solid rgba(255,255,255,.10);
  color: rgba(255,255,255,.90);

  box-shadow:
    0 10px 30px rgba(0,0,0,.28),
    inset 0 1px 0 rgba(255,255,255,.05);

  transition: border-color .25s ease, box-shadow .25s ease;
}

.field input:focus,
.field textarea:focus{
  outline: none;
  border-color: rgba(231,211,154,.40);
  box-shadow:
    0 0 0 3px rgba(212,176,90,.16),
    0 10px 30px rgba(0,0,0,.28),
    inset 0 1px 0 rgba(255,255,255,.05);
}

.form-actions{
  margin-top: 6px;
}

.pay-btn{
  width: 100%;
  border-radius: 18px;
  padding: 12px 14px;
  font-weight: 900;
}

.form-hint{
  margin-top: 10px;
  font-size: 11px;
  color: rgba(255,255,255,.45);
  line-height: 1.6;
}

.form-msg{
  margin-top: 10px;
  font-size: 12px;
  color: rgba(231,211,154,.82);
  line-height: 1.6;
  min-height: 18px;
}