body.premium-offer-open {
  overflow: hidden !important;
}

.premium-offer {
  position: fixed;
  z-index: 14500;
  inset: 0;
  background: #f8fafc;
  color: #0f172a;
  overflow: hidden;
}

.premium-offer[hidden] {
  display: none !important;
}

.premium-offer-header {
  position: sticky;
  z-index: 2;
  top: 0;
  min-height: calc(76px + env(safe-area-inset-top));
  display: grid;
  grid-template-columns: 48px minmax(0,1fr) 48px;
  align-items: center;
  gap: 10px;
  padding: calc(10px + env(safe-area-inset-top)) 16px 10px;
  border-bottom: 1px solid rgba(148,163,184,.25);
  background: rgba(248,250,252,.96);
  backdrop-filter: blur(18px);
}

.premium-offer-header > div {
  min-width: 0;
}

.premium-offer-kicker {
  display: block;
  color: #0f766e;
  font-size: 11px;
  font-weight: 850;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.premium-offer-header h1 {
  margin: 2px 0 0;
  font-size: 24px;
  line-height: 1.05;
}

.premium-offer-back,
.premium-offer-close {
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 50%;
  background: #eef2f7;
  color: #334155;
  font: inherit;
  font-size: 28px;
  line-height: 1;
}

.premium-offer-back[hidden] {
  visibility: hidden;
  display: block !important;
}

.premium-offer-body {
  height: calc(100dvh - 76px - env(safe-area-inset-top));
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 18px 16px calc(32px + env(safe-area-inset-bottom));
}

.premium-offer-body > * {
  width: min(720px,100%);
  margin-inline: auto;
}

.premium-context-card {
  margin-bottom: 16px;
  padding: 14px 16px;
  border: 1px solid rgba(20,184,166,.26);
  border-radius: 16px;
  background: #ecfdf5;
  color: #115e59;
  font-size: 14px;
  line-height: 1.4;
}

.premium-offer-intro h2,
.premium-feature-card h2 {
  margin: 0;
  font-size: 20px;
}

.premium-offer-intro p {
  margin: 7px 0 0;
  color: #64748b;
  font-size: 14px;
  line-height: 1.45;
}

.premium-plan-grid {
  display: grid;
  grid-template-columns: repeat(2,minmax(0,1fr));
  gap: 12px;
  margin-top: 16px;
}

.premium-plan-card {
  min-width: 0;
  min-height: 126px;
  display: grid;
  align-content: center;
  justify-items: start;
  gap: 5px;
  padding: 16px;
  border: 1.5px solid #cbd5e1;
  border-radius: 18px;
  background: #fff;
  color: #0f172a;
  text-align: left;
  box-shadow: 0 10px 26px rgba(15,23,42,.05);
}

.premium-plan-card:active {
  transform: scale(.985);
}

.premium-plan-name {
  font-size: 15px;
  font-weight: 800;
}

.premium-plan-price {
  font-size: 25px;
  line-height: 1.1;
}

.premium-plan-select {
  color: #0f766e;
  font-size: 12px;
  font-weight: 850;
}

.premium-feature-card,
.premium-checkout-card,
.premium-success-card {
  margin-top: 18px;
  padding: 18px;
  border: 1px solid rgba(148,163,184,.28);
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 12px 34px rgba(15,23,42,.06);
}

.premium-feature-list {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.premium-feature-row {
  min-height: 54px;
  display: grid;
  grid-template-columns: 28px minmax(0,1fr) 32px;
  align-items: center;
  gap: 10px;
  border-top: 1px solid #eef2f7;
}

.premium-feature-row:first-child {
  border-top: 0;
}

.premium-feature-check {
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: #ccfbf1;
  color: #0f766e;
  font-size: 13px;
  font-weight: 900;
}

.premium-feature-label {
  font-size: 13px;
  font-weight: 700;
  line-height: 1.35;
}

.premium-feature-info {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border: 1.5px solid #94a3b8;
  border-radius: 50%;
  background: transparent;
  color: #64748b;
  font-family: ui-serif, Georgia, serif;
  font-size: 15px;
  font-weight: 900;
}

.premium-checkout-label {
  display: block;
  color: #64748b;
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .05em;
}

.premium-checkout-summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-top: 6px;
}

.premium-checkout-summary strong {
  font-size: 22px;
}

.premium-checkout-summary span {
  color: #0f766e;
  font-size: 22px;
  font-weight: 850;
}

.premium-beta-copy {
  margin: 16px 0;
  padding: 12px 14px;
  border-radius: 14px;
  background: #f1f5f9;
  color: #475569;
  font-size: 13px;
  line-height: 1.45;
}

.premium-promo-form {
  display: grid;
  gap: 10px;
}

.premium-promo-form label {
  display: grid;
  gap: 7px;
}

.premium-promo-form label > span {
  color: #475569;
  font-size: 13px;
  font-weight: 800;
}

.premium-promo-form input {
  width: 100%;
  min-height: 52px;
  box-sizing: border-box;
  border: 1.5px solid #cbd5e1;
  border-radius: 14px;
  padding: 0 14px;
  background: #fff;
  color: #0f172a;
  font: inherit;
  font-size: 16px;
  text-transform: uppercase;
  letter-spacing: .04em;
}

.premium-promo-form input:focus {
  outline: 3px solid rgba(20,184,166,.18);
  border-color: #14b8a6;
}

.premium-promo-form button,
.premium-success-card > button {
  min-height: 52px;
  border: 0;
  border-radius: 14px;
  background: #0f8f83;
  color: #fff;
  font: inherit;
  font-size: 16px;
  font-weight: 850;
}

.premium-promo-form button:disabled {
  opacity: .55;
}

.premium-promo-status {
  min-height: 18px;
  color: #64748b;
  font-size: 12px;
  line-height: 1.4;
}

.premium-promo-status:empty {
  min-height: 0;
}

.premium-promo-status.is-error {
  color: #b91c1c;
}

.premium-plan-mismatch {
  margin-top: 14px;
  padding: 14px;
  border: 1px solid #fbbf24;
  border-radius: 14px;
  background: #fffbeb;
}

.premium-plan-mismatch[hidden] {
  display: none !important;
}

.premium-plan-mismatch strong {
  font-size: 14px;
}

.premium-plan-mismatch p {
  margin: 6px 0 12px;
  color: #78350f;
  font-size: 13px;
  line-height: 1.45;
}

.premium-plan-mismatch-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.premium-plan-mismatch-actions button {
  min-height: 44px;
  border: 1px solid #d1d5db;
  border-radius: 12px;
  background: #fff;
  color: #334155;
  font: inherit;
  font-size: 12px;
  font-weight: 800;
}

.premium-plan-mismatch-actions button:last-child {
  border-color: #0f8f83;
  background: #0f8f83;
  color: #fff;
}

.premium-success-card {
  min-height: 360px;
  display: grid;
  place-items: center;
  align-content: center;
  text-align: center;
}

.premium-success-icon {
  width: 72px;
  height: 72px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: #ccfbf1;
  color: #0f766e;
  font-size: 38px;
  font-weight: 900;
}

.premium-success-card h2 {
  margin: 16px 0 0;
  font-size: 25px;
}

.premium-success-card p {
  margin: 8px 0 18px;
  color: #475569;
  font-size: 15px;
  line-height: 1.5;
}

.premium-success-card > button {
  width: min(360px,100%);
}

.premium-offer-info {
  position: fixed;
  z-index: 14600;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 20px;
}

.premium-offer-info[hidden] {
  display: none !important;
}

.premium-offer-info-backdrop {
  position: absolute;
  inset: 0;
  border: 0;
  background: rgba(15,23,42,.52);
  backdrop-filter: blur(3px);
}

.premium-offer-info-card {
  position: relative;
  z-index: 1;
  width: min(420px,100%);
  padding: 20px;
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 24px 70px rgba(15,23,42,.28);
}

.premium-offer-info-card h2 {
  margin: 0 34px 8px 0;
  font-size: 18px;
}

.premium-offer-info-card p {
  margin: 0;
  color: #64748b;
  font-size: 14px;
}

.premium-offer-info-close {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 34px;
  height: 34px;
  border: 0;
  border-radius: 50%;
  background: #eef2f7;
  color: #334155;
  font-size: 22px;
}

@media (min-width: 760px) {
  .premium-plan-grid {
    grid-template-columns: repeat(4,minmax(0,1fr));
  }
}

@media (max-width: 420px) {
  .premium-offer-header {
    padding-inline: 10px;
  }

  .premium-offer-body {
    padding-inline: 12px;
  }

  .premium-plan-card {
    min-height: 118px;
    padding: 13px;
  }

  .premium-plan-price {
    font-size: 22px;
  }

  .premium-checkout-summary {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .premium-plan-card:active {
    transform: none;
  }
}