.cowt-newsletters {
  display: flex;
  flex-direction: column;
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.cowt-newsletters__filters {
  display: flex;
  justify-content: flex-end;
}

.cowt-newsletters__filter {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  font-weight: 600;
  color: rgba(15,23,42,.7);
}

.cowt-newsletters__select {
  position: relative;
  display: inline-flex;
  align-items: stretch;
  gap: .35rem;
  padding: .35rem .5rem .35rem .65rem;
  border-radius: 999px;
  background: rgba(15,23,42,.04);
  border: 1px solid rgba(148,163,184,.35);
  box-shadow: inset 0 1px 2px rgba(15,23,42,.08);
}

.cowt-newsletters__select-input {
  border: none;
  background: transparent;
  padding: .3rem .5rem;
  font-size: .9rem;
  min-width: 140px;
  color: #0f172a;
}

.cowt-newsletters__select-input:focus {
  outline: none;
}

.cowt-newsletters__toggle {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: #fff;
  border: 1px solid rgba(148,163,184,.45);
  border-radius: 999px;
  padding: .35rem .85rem;
  font-weight: 600;
  font-size: .95rem;
  color: var(--wp--preset--color--brand-blue);
  cursor: pointer;
  transition: background .2s ease, border-color .2s ease;
}

.cowt-newsletters__toggle svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  stroke-width: 1.6;
  fill: none;
  transition: transform .2s ease;
}

.cowt-newsletters__toggle:hover,
.cowt-newsletters__toggle:focus {
  background: rgba(37,99,235,.1);
  border-color: rgba(37,99,235,.5);
  outline: none;
}

.cowt-newsletters__select.is-open .cowt-newsletters__toggle svg {
  transform: rotate(180deg);
}

.cowt-newsletters__options {
  position: absolute;
  top: calc(100% + .4rem);
  right: 0;
  min-width: 180px;
  max-height: 240px;
  overflow-y: auto;
  border-radius: 14px;
  border: 1px solid rgba(148,163,184,.35);
  background: #fff;
  box-shadow: 0 18px 42px rgba(15,23,42,.12);
  padding: .5rem;
  display: none;
  z-index: 6;
}

.cowt-newsletters__select.is-open .cowt-newsletters__options {
  display: block;
}

.cowt-newsletters__option {
  display: block;
  width: 100%;
  text-align: left;
  border: none;
  background: transparent;
  padding: .45rem .65rem;
  border-radius: 10px;
  font-size: .95rem;
  font-weight: 600;
  color: rgba(15,23,42,.75);
  cursor: pointer;
}

.cowt-newsletters__option:hover,
.cowt-newsletters__option:focus {
  background: rgba(37,99,235,.1);
  color: var(--wp--preset--color--brand-blue);
  outline: none;
}

.cowt-newsletters__option.is-active {
  background: rgba(37,99,235,.16);
  color: var(--wp--preset--color--brand-blue);
}

.cowt-newsletters__list {
  display: grid;
  gap: clamp(1rem, 2vw, 1.6rem);
}

.cowt-newsletters__card {
  border-radius: 16px;
  border: 1px solid rgba(148,163,184,.25);
  background: #fff;
  box-shadow: 0 12px 24px rgba(15,23,42,.08);
  padding: clamp(1.1rem, 3vw, 1.6rem);
  display: flex;
  flex-direction: column;
  gap: .65rem;
  cursor: pointer;
  text-align: left;
  transition: transform .2s ease, box-shadow .2s ease;
}

.cowt-newsletters__card:hover,
.cowt-newsletters__card:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 18px 36px rgba(37,99,235,.18);
  outline: none;
}

.cowt-newsletters__card-date {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-weight: 700;
  color: var(--wp--preset--color--brand-blue);
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: .8rem;
}

.cowt-newsletters__card-desc {
  color: rgba(15,23,42,.78);
  font-size: 1rem;
  line-height: 1.6;
}

.cowt-newsletters__card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  font-size: .9rem;
  color: rgba(15,23,42,.6);
}

.cowt-newsletters__card-arrow {
  font-weight: 700;
}

.cowt-newsletters__card svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

.cowt-newsletters__empty {
  padding: clamp(1.5rem, 3vw, 2rem);
  border-radius: 16px;
  border: 1px dashed rgba(148,163,184,.5);
  text-align: center;
  color: rgba(15,23,42,.6);
}

.cowt-newsletter-lightbox {
  position: fixed;
  inset: 0;
  background: rgba(15,23,42,.8);
  display: none;
  align-items: center;
  justify-content: center;
  padding: clamp(2rem, 6vh, 4rem);
  z-index: 300;
}

.cowt-newsletter-lightbox.is-active {
  display: flex;
}

.cowt-newsletter-lightbox__frame {
  position: relative;
  width: min(1000px, 96vw);
  height: min(85vh, 900px);
  background: #fff;
  border-radius: 18px;
  box-shadow: 0 30px 70px rgba(0,0,0,.4);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.cowt-newsletter-lightbox__toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .85rem 1.25rem;
  background: rgba(15,23,42,.05);
  border-bottom: 1px solid rgba(148,163,184,.3);
}

.cowt-newsletter-lightbox__title {
  font-weight: 700;
  margin: 0;
  color: #0f172a;
}

.cowt-newsletter-lightbox__close {
  background: none;
  border: none;
  color: rgba(15,23,42,.6);
  font-size: 1.9rem;
  line-height: 1;
  cursor: pointer;
}

.cowt-newsletter-lightbox__iframe {
  flex: 1 1 auto;
  border: none;
  width: 100%;
  background: #f8fafc;
}

@media (max-width: 720px) {
  .cowt-newsletters__filters {
    justify-content: flex-start;
  }
  .cowt-newsletter-lightbox__frame {
    width: 100%;
    height: 90vh;
    border-radius: 12px;
  }
}