/* Container */
.tsf-hero{
  max-width: 980px;
  margin: 0 auto;
  text-align: center;
  padding: 28px 16px 10px;
}

.tsf-title{
  font-size: 42px;
  font-weight: 800;
  letter-spacing: 1px;
  margin: 6px 0 18px;
}

/* Select row */
.tsf-row{
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  justify-content: center;
  align-items: center;
  max-width: 900px;
  margin: 0 auto 18px;
}

.tsf-select{
  width: 100%;
  height: 62px;
  border-radius: 12px;
  border: 2px solid #cfcfcf;
  background: #f0d54a;
  font-size: 26px;
  font-weight: 600;
  padding: 0 18px;
  outline: none;
}

/* Button */
.tsf-btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 58px;
  padding: 0 34px;
  border-radius: 32px;
  border: 3px solid #1e4fff;
  background: #fff;
  color: #1e4fff;
  font-weight: 800;
  font-size: 22px;
  letter-spacing: .5px;
  cursor: pointer;
}

.tsf-disabled{
  opacity: .6;
  cursor: not-allowed;
}

/* Loading */
.tsf-loading{
  margin-top: 12px;
  font-weight: 700;
  color: #333;
}

.tsf-spinner{
  display:inline-block;
  width: 16px;
  height: 16px;
  border: 3px solid #ddd;
  border-top-color: #1e4fff;
  border-radius: 50%;
  margin-right: 8px;
  vertical-align: -2px;
  animation: tsfspin .8s linear infinite;
}

@keyframes tsfspin { to { transform: rotate(360deg); } }

/* Results */
.tsf-pick{
  margin-top: 14px;
  font-size: 22px;
  color: #7a7a7a;
  font-weight: 700;
}

.tsf-size{
  margin-top: 6px;
  font-size: 34px;
  font-weight: 900;
  color: #6b6b6b;
}

/* Product card */
.tsf-product{
  margin-top: 18px;
  display: flex;
  justify-content: center;
}

.tsf-prod-card{
  width: 100%;
  max-width: 820px;
  border-radius: 16px;
  border: 1px solid #e6e6e6;
  background: #fff;
  padding: 18px;
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 16px;
  align-items: center;
}

.tsf-prod-img{
  width: 150px;
  height: auto;
  border-radius: 12px;
  display:block;
  margin: 0 auto;
}

.tsf-prod-title{
  font-size: 34px;
  font-weight: 900;
  color: #1f49c7;
  line-height: 1.15;
  margin-bottom: 6px;
}

.tsf-prod-size{
  font-size: 20px;
  color:#777;
  font-weight: 700;
  margin-bottom: 12px;
}

.tsf-prod-btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 52px;
  padding: 0 26px;
  border-radius: 14px;
  border: 2px solid #1e4fff;
  color: #1e4fff;
  font-weight: 900;
  text-decoration: none;
  max-width: 220px;
}

.tsf-empty{
  font-weight: 700;
  color:#777;
}

/* Mobile */
@media (max-width: 860px){
  .tsf-title{ font-size: 30px; }
  .tsf-row{ grid-template-columns: 1fr; max-width: 520px; }
  .tsf-select{ height: 56px; font-size: 22px; }
  .tsf-size{ font-size: 26px; }
  .tsf-prod-card{ grid-template-columns: 1fr; text-align: center; }
  .tsf-prod-btn{ max-width: 100%; }
}