.study-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 12px 18px;
  background: #edf3ff;
  color: #2560d4;
  border: 1px solid transparent;
  border-radius: 12px;
  font: inherit;
  font-size: 14px;
  white-space: nowrap;
  transition:
    background 0.2s,
    color 0.2s,
    box-shadow 0.2s;
}
.study-toggle:hover {
  background: #dfeaff;
}
.study-toggle:focus-visible {
  outline: 3px solid #94b7ff;
  outline-offset: 4px;
}
.site-header:has(.study-toggle) #cart-link {
  display: none;
}
.study-toggle.is-active {
  background: #2e71fc;
  color: white;
  box-shadow: 0 6px 18px #2e71fc25;
}
.study-toggle.is-active:hover {
  background: #2560d4;
}
.study-toggle.is-active > span:last-child {
  font-size: 24px;
  line-height: 18px;
  margin-left: 4px;
}
.study-dialog {
  position: fixed;
  inset: 0;
  box-sizing: border-box;
  width: 100%;
  height: 100%;
  max-width: none;
  max-height: none;
  margin: 0;
  padding: 32px 40px 48px;
  border: 0;
  background: transparent;
  color: #333;
  font-family: inherit;
  overflow-y: auto;
  overscroll-behavior: contain;
}
.study-dialog::backdrop {
  background: rgba(229, 233, 240, 0.78);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  animation: study-fade 0.32s ease both;
}
.study-shell {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}
.study-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  margin: 0 0 32px;
}
.study-eyebrow {
  display: block;
  font-size: 10px;
  letter-spacing: 1.5px;
  color: #2560d4;
  margin: 4px 0 12px;
}
.study-top h2 {
  font-size: 30px;
  line-height: 1.25;
  font-weight: 500;
  letter-spacing: -0.5px;
  margin: 0 0 12px;
}
.study-top p {
  font-size: 14px;
  line-height: 1.6;
  color: #6d7890;
}
.study-scenarios {
  background: #fff;
  border: 1px solid #a8c3ff;
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 8px 30px #253b6110;
  animation: study-enter 0.4s ease both;
}
.study-scenarios .scenario-buttons {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}
.study-scenarios .scenario-button {
  width: 100%;
  height: 54px;
}
.study-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  padding: 0 24px;
}
.study-card {
  min-width: 0;
  animation: study-enter 0.5s cubic-bezier(0.2, 0.8, 0.2, 1) both;
  animation-delay: calc(100ms + var(--study-order) * 90ms);
}
.study-arrow {
  display: block;
  width: 80px;
  height: 56px;
  margin: 12px auto 4px;
  stroke: #2e71fc;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.study-arrow path {
  stroke-dasharray: 1;
  animation: study-draw 0.6s ease both;
  animation-delay: calc(200ms + var(--study-order) * 90ms);
}
.study-card-content {
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid #fff;
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 8px 24px #253b6108;
  min-height: 360px;
}
.study-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 22px;
  font-size: 11px;
  color: #6d7890;
}
.study-card-meta > span:first-child {
  color: #2e71fc;
  font-size: 14px;
}
.study-card-meta > span:last-child {
  background: #edf3ff;
  color: #2560d4;
  padding: 7px 10px;
  border-radius: 20px;
}
.study-card h3 {
  font-size: 22px;
  line-height: 1.3;
  font-weight: 500;
  color: #2560d4;
  margin: 0 0 18px;
}
.study-card h4 {
  font-size: 14px;
  line-height: 1.5;
  font-weight: 500;
  margin: 0 0 10px;
}
.study-card p {
  font-size: 13px;
  line-height: 1.7;
  color: #6d7890;
  margin: 0 0 20px;
}
.study-card ul {
  list-style: none;
  padding: 18px 0 0;
  margin: 0;
  border-top: 1px solid #e4e9f1;
  display: grid;
  gap: 12px;
}
.study-card li {
  position: relative;
  padding-left: 17px;
  font-size: 12px;
  line-height: 1.6;
}
.study-card li::before {
  content: "";
  position: absolute;
  width: 5px;
  height: 5px;
  left: 0;
  top: 7px;
  background: #2e71fc;
  border-radius: 50%;
}
.study-footnote {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 24px;
  font-size: 11px;
  line-height: 1.6;
  color: #6d7890;
}
.study-footnote span {
  white-space: nowrap;
}
@keyframes study-enter {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes study-fade {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
@keyframes study-draw {
  from {
    stroke-dashoffset: 1;
  }
  to {
    stroke-dashoffset: 0;
  }
}
@media (max-width: 1000px) {
  .study-dialog {
    padding: 24px;
  }
  .study-grid {
    gap: 14px;
    padding: 0;
  }
  .study-card-content {
    padding: 20px;
  }
  .study-card h3 {
    font-size: 19px;
  }
  .study-top h2 {
    font-size: 26px;
  }
  .study-scenarios .scenario-buttons {
    gap: 14px;
  }
  .study-footnote {
    padding: 24px 0;
  }
}
@media (max-width: 700px) {
  .site-header:has(.study-toggle) {
    flex-wrap: wrap;
    gap: 16px;
  }
  .site-header > .study-toggle {
    margin-left: auto;
    font-size: 12px;
    padding: 10px 12px;
    gap: 7px;
  }
  .study-dialog {
    padding: 20px 16px 32px;
  }
  .study-top {
    flex-direction: column-reverse;
    gap: 24px;
    margin-bottom: 24px;
  }
  .study-top > .study-toggle {
    align-self: flex-end;
  }
  .study-top h2 {
    font-size: 25px;
    max-width: 330px;
  }
  .study-top p {
    font-size: 13px;
  }
  .study-scenarios {
    padding: 12px;
    border-radius: 12px;
  }
  .study-scenarios .scenario-buttons {
    gap: 6px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .study-scenarios .scenario-button {
    height: 48px;
    font-size: 10px;
    line-height: 1.4;
    padding: 8px 5px;
    white-space: normal;
  }
  .study-grid {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .study-arrow {
    height: 40px;
    margin-top: 10px;
    margin-bottom: 4px;
  }
  .study-card-content {
    min-height: 0;
    padding: 24px;
  }
  .study-card h3 {
    font-size: 23px;
  }
  .study-card-meta {
    margin-bottom: 16px;
  }
  .study-card p {
    font-size: 14px;
  }
  .study-card li {
    font-size: 13px;
  }
  .study-footnote {
    display: block;
    text-align: center;
  }
  .study-footnote span {
    display: none;
  }
}
@media (prefers-reduced-motion: reduce) {
  .study-dialog *,
  .study-dialog::backdrop {
    animation: none !important;
    transition: none !important;
  }
}

/* Match the landing's Book, Regular and Medium faces. */
.study-dialog {
  font-family: LandingStolzl, Arial, sans-serif;
  font-weight: 300;
}
.study-top h2 {
  color: #0b1e46;
  max-width: 760px;
}
.study-top h2,
.study-card h3,
.study-card h4 {
  font-weight: 500;
}
.study-card h3 {
  color: #2e71fc;
}
.study-card h4 {
  color: #0b1e46;
}
.study-toggle,
.study-card-meta {
  font-weight: 400;
}
.study-scenario-label {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 12px;
  border: 1px solid #dce6fa;
  border-radius: 8px;
  background: #f0f2f5;
  color: #0b1e46;
  font-size: 14px;
  font-weight: 400;
  text-align: center;
  cursor: default;
}
.study-card-content {
  height: calc(100% - 72px);
}
@media (max-width: 700px) {
  .study-scenario-label {
    font-size: 10px;
    min-height: 48px;
    padding: 8px 5px;
  }
  .study-card-content {
    height: auto;
  }
}

/* Open annotations, without cards or badges. */
.study-grid {
  gap: 48px;
  padding: 0 20px;
  align-items: start;
}
.study-card-content {
  height: auto;
  min-height: 0;
  padding: 8px 0 0;
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}
.study-card h3 {
  color: #2e71fc !important;
  font-size: 24px;
  margin-bottom: 18px;
}
.study-card h4 {
  font-size: 14px;
  margin-bottom: 10px;
}
.study-card p {
  margin-bottom: 16px;
}
.study-card ul {
  border: 0;
  padding: 0;
  gap: 9px;
}
.study-card li {
  font-size: 13px;
}
.study-card:nth-child(2) {
  padding-top: 80px;
}
.study-card:nth-child(3) {
  padding-top: 28px;
}
.study-arrow {
  width: 90px;
  height: 72px;
  margin: 14px auto 18px;
  stroke: #6d7890;
  stroke-width: 1.6;
}
.study-card:nth-child(2) .study-arrow {
  height: 112px;
  margin-top: -66px;
}
.study-card:nth-child(3) .study-arrow {
  height: 85px;
  margin-top: -12px;
}
.study-scenarios {
  box-shadow: none;
}
.study-dialog::backdrop {
  background: rgba(240, 242, 245, 0.84);
}
@media (max-width: 1000px) {
  .study-grid {
    gap: 28px;
    padding: 0 8px;
  }
  .study-card h3 {
    font-size: 21px;
  }
}
@media (max-width: 700px) {
  .study-grid {
    gap: 20px;
    padding: 0 12px;
  }
  .study-card:nth-child(n) {
    padding-top: 0;
  }
  .study-card:nth-child(n) .study-arrow {
    height: 48px;
    width: 60px;
    margin: 12px 0 12px;
  }
  .study-card-content {
    padding: 0;
  }
  .study-card h3 {
    font-size: 23px;
  }
  .study-card p {
    font-size: 14px;
  }
  .study-card li {
    font-size: 13px;
  }
  .study-card:last-child {
    padding-bottom: 24px;
  }
}

/* Static scenario labels retain the basket button appearance. */
.study-scenario-label {
  background: #fff;
  color: #2e71fc;
  border-color: #2e71fc;
}
.study-card h4 {
  font-size: 16px;
  line-height: 1.5;
  margin-bottom: 14px;
}

.study-more {
  display: flex;
  justify-content: flex-end;
  margin-top: 40px;
  padding: 0 20px 16px;
}
.study-more a {
  color: #2e71fc;
  font-size: 14px;
  text-decoration: underline;
  text-underline-offset: 4px;
}
.study-more a:hover {
  color: #2560d4;
}
.study-more a:focus-visible {
  outline: 2px solid #2e71fc;
  outline-offset: 6px;
}
.study-more span {
  margin-left: 6px;
}

/* Keep the detail link below the underlying payment action. */
.study-more {
  margin-top: 120px;
  min-height: 48px;
  align-items: center;
  padding-bottom: 24px;
}
@media (max-width: 700px) {
  .study-more {
    margin-top: 48px;
  }
}

/* Mobile reading layout, matching the supplied full-screen reference. */
.study-mobile-title {
  display: none;
}
@media (max-width: 700px) {
  .study-dialog {
    padding: 20px 20px calc(24px + env(safe-area-inset-bottom));
    width: 100%;
    height: 100%;
    max-width: none;
    margin: 0;
    border-radius: 0;
  }
  .study-shell {
    max-width: none;
  }
  .study-top {
    gap: 28px;
    margin-bottom: 36px;
  }
  .study-top > .study-toggle {
    align-self: flex-end;
    min-height: 46px;
  }
  .study-top h2 {
    max-width: none;
    font-size: clamp(24px, 6.4vw, 32px);
    line-height: 1.28;
    letter-spacing: -0.5px;
    margin-bottom: 16px;
  }
  .study-top p {
    font-size: 14px;
    line-height: 1.6;
  }
  .study-navigation,
  .study-card:nth-child(n) .study-arrow {
    display: none;
  }
  .study-grid {
    display: flex;
    flex-direction: column;
    gap: 48px;
    padding: 0;
  }
  .study-card:nth-child(n) {
    padding: 0;
    width: 100%;
  }
  .study-card-content {
    height: auto;
    min-height: 0;
    padding: 0;
  }
  .study-card .study-mobile-title {
    display: block;
    color: #2e71fc !important;
    font-size: 24px;
    line-height: 1.3;
    margin: 0 0 14px;
  }
  .study-card h4 {
    font-size: 16px;
    line-height: 1.5;
    margin: 0 0 20px;
  }
  .study-card p {
    font-size: 14px;
    line-height: 1.75;
    margin: 0 0 22px;
  }
  .study-card ul {
    gap: 13px;
  }
  .study-card li {
    font-size: 14px;
    line-height: 1.65;
    padding-left: 18px;
  }
  .study-card li::before {
    top: 9px;
  }
  .study-more {
    margin-top: 64px;
    padding: 0;
    min-height: 44px;
    justify-content: flex-end;
  }
  .study-more a {
    font-size: 14px;
  }
}