.card-offer-popup-open { overflow: hidden; }

.card-offer-popup {
  position: fixed;
  z-index: 1000000;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 0;
  background:
    radial-gradient(circle at 80% 12%, rgba(37, 181, 68, .16), transparent 30%),
    radial-gradient(circle at 8% 86%, rgba(28, 159, 50, .12), transparent 35%),
    #f3faf4;
  opacity: 0;
  visibility: hidden;
  transition: opacity .3s ease, visibility .3s ease;
}

.card-offer-popup.is-open { opacity: 1; visibility: visible; }

.card-offer-popup__shade {
  display: none;
}

.card-offer-popup__panel {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100dvh;
  max-height: none;
  overflow-y: auto;
  padding: 76px 28px 40px;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  text-align: center;
  transform: translateY(16px) scale(.98);
  transition: transform .3s ease;
}

.card-offer-popup.is-open .card-offer-popup__panel { transform: none; }

.card-offer-popup__close {
  position: fixed;
  top: 26px;
  right: 30px;
  width: 48px;
  height: 48px;
  border: 1px solid #d7e3d9;
  border-radius: 50%;
  background: #fff;
  color: #19361e;
  font-size: 26px;
  line-height: 1;
  cursor: pointer;
}

.card-offer-popup__eyebrow {
  margin: 0 0 14px;
  color: #087117;
  font-size: .72rem;
  font-weight: 900;
  letter-spacing: .11em;
  text-transform: uppercase;
}

.card-offer-popup__intro h2 {
  margin: 0;
  color: #0b160d;
  font-size: clamp(2.1rem, 5vw, 4.4rem);
  line-height: 1.02;
  letter-spacing: -.055em;
}

.card-offer-popup__intro { width: min(760px, 100%); }

.card-offer-popup__intro h2 em { color: #078516; font-family: Georgia, serif; }

#card-offer-description {
  max-width: 520px;
  margin: 18px auto 0;
  color: #59645c;
  line-height: 1.5;
}

.card-offer-popup__terms {
  margin: 8px auto 0;
  color: #6a746d;
  font-size: .76rem;
  line-height: 1.4;
}

.card-offer-popup__cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(10px, 2vw, 18px);
  width: min(760px, 100%);
  margin-top: clamp(24px, 4vw, 34px);
  perspective: 1000px;
}

.card-offer-popup__card {
  min-width: 0;
  aspect-ratio: 1 / 1.22;
  padding: 0;
  border: 0;
  border-radius: 20px;
  background: transparent;
  cursor: pointer;
  transition: opacity .25s ease, transform .25s ease;
}

.card-offer-popup__card:hover:not(:disabled) { transform: translateY(-6px); }
.card-offer-popup__card:disabled { cursor: wait; }
.card-offer-popup__card:focus-visible { outline: 3px solid #19b432; outline-offset: 4px; }
.card-offer-popup__card.is-unselected { opacity: .4; }

.card-offer-popup__card-inner {
  position: relative;
  display: block;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  transition: transform .65s cubic-bezier(.2,.75,.2,1);
}

.card-offer-popup__card.is-flipped .card-offer-popup__card-inner { transform: rotateY(180deg); }

.card-offer-popup__card-front,
.card-offer-popup__card-back {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 15px;
  overflow: hidden;
  border-radius: 20px;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.card-offer-popup__card-front {
  border: 1px solid rgba(255, 255, 255, .4);
  background: radial-gradient(circle at 80% 12%, rgba(82, 193, 97, .34), transparent 40%), linear-gradient(150deg, #176329, #071d0e);
  box-shadow: 0 16px 32px rgba(13, 61, 21, .2);
  color: rgba(255,255,255,.75);
  font-size: .65rem;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.card-offer-popup__monogram {
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  border: 1px solid rgba(255, 255, 255, .55);
  border-radius: 50%;
  color: #fff;
  font-size: 1.25rem;
  letter-spacing: -.08em;
}

.card-offer-popup__card-back {
  gap: 5px;
  border: 1px solid #18a92b;
  background: linear-gradient(150deg, #e9ffe9, #bcf4bf);
  color: #075d11;
  transform: rotateY(180deg);
}

.card-offer-popup__card-back > span { font-size: 1.7rem; }
.card-offer-popup__card-back strong { font-size: clamp(1.5rem, 4vw, 2.9rem); line-height: 1; }
.card-offer-popup__card-back small { max-width: 120px; font-size: .7rem; font-weight: 800; line-height: 1.25; }

.card-offer-popup__result { width: min(760px, 100%); min-height: 80px; padding-top: 20px; }
.card-offer-popup__prompt { margin: 0; color: #6a746d; font-size: .82rem; }
.card-offer-popup__reward p { margin: 0 0 4px; color: #087117; font-size: .7rem; font-weight: 900; letter-spacing: .1em; text-transform: uppercase; }
.card-offer-popup__reward strong { display: block; color: #0c1710; font-size: clamp(1.25rem, 3vw, 1.8rem); }
.card-offer-popup__reward > span { display: block; margin: 7px 0 16px; color: #606b63; font-size: .82rem; }

.card-offer-popup__reward a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 25px;
  border-radius: 999px;
  background: #10a626;
  color: #fff;
  font-size: .8rem;
  font-weight: 900;
  text-decoration: none;
}

@media (max-width: 600px) {
  .card-offer-popup__panel { min-height: 100dvh; height: auto; padding: 68px 18px 32px; }
  .card-offer-popup__close { top: 16px; right: 16px; }
  .card-offer-popup__intro h2 { font-size: clamp(2rem, 10vw, 3rem); }
  #card-offer-description { margin-top: 12px; font-size: .85rem; }
  .card-offer-popup__cards { gap: 8px; margin-top: 20px; }
  .card-offer-popup__card,
  .card-offer-popup__card-front,
  .card-offer-popup__card-back { border-radius: 13px; }
  .card-offer-popup__monogram { width: 42px; height: 42px; font-size: .9rem; }
  .card-offer-popup__card-front { gap: 8px; font-size: .5rem; }
  .card-offer-popup__card-back small { padding: 0 4px; font-size: .58rem; }
  .card-offer-popup__result { min-height: 68px; padding-top: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  .card-offer-popup,
  .card-offer-popup__panel,
  .card-offer-popup__card-inner { transition-duration: .01ms; }
}