:root {
  --ke-tb-accent: #2d9ce8;
  --ke-tb-navy: #0b2a55;
  --ke-tb-border: #e6edf5;
  --ke-tb-soft: #f8fbff;
  --ke-tb-text: #1f2937;
  --ke-tb-muted: #64748b;
}

.ke-tb-card,
.ke-tb-checkout-box,
.ke-tb-notice,
.ke-tb-order-support,
.ke-tb-support-box {
  background: #fff;
  border: 1px solid var(--ke-tb-border);
  border-radius: 16px;
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.06);
  color: var(--ke-tb-text);
}

.ke-tb-product-trust { padding: 18px; margin: 18px 0; }
.ke-tb-product-trust h3,
.ke-tb-checkout-box h3,
.ke-tb-order-support h3 {
  margin: 0 0 14px;
  color: var(--ke-tb-navy);
  font-size: 18px;
  line-height: 1.25;
  font-weight: 800;
}

.ke-tb-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
.ke-tb-grid > div {
  display: grid;
  grid-template-columns: 34px 1fr;
  grid-template-rows: auto auto;
  column-gap: 10px;
  align-items: center;
  background: var(--ke-tb-soft);
  border: 1px solid var(--ke-tb-border);
  border-radius: 12px;
  padding: 12px;
}
.ke-tb-icon {
  grid-row: span 2;
  width: 32px;
  height: 32px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(45, 156, 232, .12);
  color: var(--ke-tb-accent);
  font-weight: 900;
}
.ke-tb-grid strong { font-size: 13px; color: var(--ke-tb-navy); line-height: 1.2; }
.ke-tb-grid small { font-size: 12px; color: var(--ke-tb-muted); line-height: 1.25; }

.ke-tb-notice {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  margin: 14px 0 18px;
  background: #fbfdff;
}
.ke-tb-notice-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--ke-tb-navy);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  flex-shrink: 0;
}
.ke-tb-notice strong { color: var(--ke-tb-navy); display: block; margin-bottom: 4px; }
.ke-tb-notice p { margin: 0; color: var(--ke-tb-muted); line-height: 1.55; font-size: 14px; }

.ke-tb-checkout-box {
  padding: 16px;
  margin: 16px 0;
  background: linear-gradient(180deg, #ffffff, #f8fbff);
}
.ke-tb-checkout-box p { margin: 0 0 12px; color: var(--ke-tb-muted); font-size: 14px; line-height: 1.6; }
.ke-tb-checkout-links { display: flex; flex-wrap: wrap; gap: 8px; }
.ke-tb-checkout-links a,
.ke-tb-link-button,
.ke-tb-support-box a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none !important;
  background: rgba(45, 156, 232, .10);
  color: var(--ke-tb-navy) !important;
  border: 1px solid rgba(45, 156, 232, .22);
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 700;
}
.ke-tb-checkout-links a:hover,
.ke-tb-link-button:hover,
.ke-tb-support-box a:hover { background: rgba(45, 156, 232, .18); }

.ke-tb-order-support,
.ke-tb-support-box { padding: 20px; margin: 22px 0; }
.ke-tb-order-support p,
.ke-tb-support-box p { color: var(--ke-tb-muted); margin: 0 0 14px; line-height: 1.6; }

.ke-tb-how {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin: 20px 0;
}
.ke-tb-how > div {
  background: #fff;
  border: 1px solid var(--ke-tb-border);
  border-radius: 16px;
  padding: 18px;
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.05);
}
.ke-tb-how span {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  background: linear-gradient(135deg, var(--ke-tb-navy), var(--ke-tb-accent));
  font-weight: 900;
  margin-bottom: 12px;
}
.ke-tb-how strong { display: block; color: var(--ke-tb-navy); margin-bottom: 6px; }
.ke-tb-how p { margin: 0; color: var(--ke-tb-muted); font-size: 14px; line-height: 1.55; }

.ke-tb-floating-help {
  position: fixed;
  right: 18px;
  bottom: 18px;
  display: flex;
  gap: 8px;
  z-index: 9998;
}
.ke-tb-floating-help a {
  background: var(--ke-tb-navy);
  color: #fff !important;
  text-decoration: none !important;
  border-radius: 999px;
  padding: 11px 14px;
  box-shadow: 0 10px 26px rgba(11, 42, 85, 0.22);
  font-weight: 800;
  font-size: 13px;
}
.ke-tb-floating-help a:first-child { background: #16a34a; }

@media (max-width: 768px) {
  .ke-tb-grid,
  .ke-tb-how { grid-template-columns: 1fr; }
  .ke-tb-floating-help { right: 12px; bottom: 12px; }
}