/* ==========================================================================
   ROUND 3.12: DELIVERY ASSURANCE + PAYMENT STRUCTURE
   ========================================================================== */

.delivery-assurance-section {
  position: relative;
  overflow: hidden;
  background: #e8e2d8;
}

.delivery-assurance-section::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .38;
  background:
    radial-gradient(circle at 92% 5%, rgba(245,107,60,.13), transparent 29%),
    linear-gradient(rgba(17,17,15,.034) 1px, transparent 1px),
    linear-gradient(90deg, rgba(17,17,15,.034) 1px, transparent 1px);
  background-size: auto, 56px 56px, 56px 56px;
}

.assurance-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4,minmax(0,1fr));
  border-top: 1px solid rgba(17,17,15,.18);
  border-left: 1px solid rgba(17,17,15,.18);
}

.assurance-card {
  min-height: 265px;
  padding: clamp(24px,2.8vw,36px);
  border-right: 1px solid rgba(17,17,15,.18);
  border-bottom: 1px solid rgba(17,17,15,.18);
  background: rgba(243,239,232,.72);
}

.assurance-card span {
  color: var(--signal-dark);
  font: 8px var(--mono);
  letter-spacing: .08em;
}

.assurance-card h3 {
  margin: 35px 0 13px;
  font-size: clamp(23px,2.5vw,34px);
  line-height: 1;
  letter-spacing: -.04em;
}

.assurance-card p {
  color: rgba(17,17,15,.59);
  font-size: 13px;
}

.payment-authorization {
  position: relative;
  display: grid;
  grid-template-columns: minmax(270px,.74fr) minmax(0,1.26fr);
  gap: clamp(36px,6vw,90px);
  margin-top: 34px;
  padding: clamp(31px,4vw,55px);
  background: #11110f;
  color: #fff;
}

.payment-authorization .eyebrow {
  color: var(--signal);
}

.payment-authorization h3 {
  max-width: 620px;
  margin: 17px 0 18px;
  color: #fff;
  font-size: clamp(37px,4.6vw,68px);
  line-height: .92;
  letter-spacing: -.06em;
  text-transform: uppercase;
}

.payment-authorization p {
  color: rgba(255,255,255,.57);
}

.payment-stages {
  display: grid;
  grid-template-columns: repeat(2,minmax(0,1fr));
  border-top: 1px solid rgba(255,255,255,.15);
  border-left: 1px solid rgba(255,255,255,.15);
}

.payment-stage {
  min-height: 280px;
  padding: clamp(24px,3vw,36px);
  border-right: 1px solid rgba(255,255,255,.15);
  border-bottom: 1px solid rgba(255,255,255,.15);
}

.payment-stage > span {
  color: var(--signal);
  font: 8px var(--mono);
  letter-spacing: .08em;
}

.payment-stage strong {
  display: block;
  margin: 38px 0 15px;
  color: #fff;
  font-size: clamp(28px,3.2vw,45px);
  line-height: .96;
  letter-spacing: -.045em;
  text-transform: uppercase;
}

.payment-stage p {
  color: rgba(255,255,255,.54);
  font-size: 13px;
}

.assurance-boundary {
  position: relative;
  margin-top: 25px;
  padding: 20px 22px;
  border-left: 2px solid var(--signal);
  background: rgba(17,17,15,.055);
  color: rgba(17,17,15,.58);
  font-size: 13px;
  line-height: 1.58;
}

.review-payment-note {
  display: block;
  margin-top: 13px;
  color: rgba(255,255,255,.49);
  font-size: 12px;
  font-style: normal;
  line-height: 1.55;
}

@media (max-width: 1050px) {
  .assurance-grid {
    grid-template-columns: repeat(2,minmax(0,1fr));
  }

  .payment-authorization {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .assurance-grid,
  .payment-stages {
    grid-template-columns: 1fr;
  }

  .assurance-card,
  .payment-stage {
    min-height: auto;
  }
}