.membership-dialog {
  width: min(620px, calc(100vw - 2rem));
  max-height: calc(100dvh - 2rem);
  padding: clamp(1.25rem, 4vw, 2.25rem);
  overflow: auto;
  border: 1px solid var(--brass, #b89251);
  color: var(--paper, #eee1c8);
  background: #1c1711;
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.7);
}

.membership-dialog::backdrop {
  background: rgba(8, 6, 4, 0.82);
  backdrop-filter: blur(4px);
}

.membership-dialog__heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.membership-dialog h2,
.membership-dialog h3,
.membership-ready h2,
.book-page h1,
.book-library h1 {
  margin: 0;
  color: var(--paper-bright, #fff6e3);
  font-family: var(--font-display, Georgia, serif);
  font-weight: 400;
}

.membership-dialog__intro,
.membership-dialog form > p,
.membership-success p,
.membership-ready p {
  color: var(--muted, #bdaf9b);
  line-height: 1.65;
}

.membership-dialog form {
  display: grid;
  gap: 0.75rem;
  margin-top: 1.4rem;
}

.membership-dialog label:not(.membership-consent) {
  display: grid;
  gap: 0.45rem;
  color: var(--paper, #eee1c8);
  font-family: var(--font-label, Arial, sans-serif);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.membership-dialog label span {
  color: var(--muted, #bdaf9b);
  text-transform: none;
}

.membership-dialog input[type="email"],
.membership-dialog input[type="text"],
.membership-dialog input:not([type]) {
  width: 100%;
  min-height: 48px;
  padding: 0.75rem;
  border: 1px solid rgba(201, 165, 95, 0.45);
  border-radius: 0;
  color: #fff6e3;
  background: #100d0a;
  font: 1rem/1.3 system-ui, sans-serif;
}

.membership-consent {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 0.75rem;
  align-items: start;
  margin: 0.35rem 0;
  line-height: 1.5;
}

.membership-consent input {
  width: 22px;
  height: 22px;
  margin: 0;
  accent-color: #c9a55f;
}

.membership-dialog :focus-visible,
.book-downloads :focus-visible,
.membership-ready :focus-visible {
  outline: 3px solid #f0c873;
  outline-offset: 3px;
}

.field-error,
.membership-status {
  min-height: 1.1em;
  color: #ffd0c5;
  font: 0.85rem/1.4 system-ui, sans-serif;
}

.membership-status:not(:empty) {
  margin-top: 1rem;
  padding: 0.8rem;
  border-left: 3px solid #d88d74;
  background: rgba(120, 42, 25, 0.18);
}

.membership-switch {
  margin-top: 1.25rem;
}

.membership-privacy {
  margin: 0;
  font-size: 0.85rem;
}

.membership-trap {
  position: absolute !important;
  left: -10000px !important;
}

.membership-ready {
  width: min(1180px, calc(100% - 2rem));
  margin: 1rem auto;
  padding: clamp(1.25rem, 4vw, 2.2rem);
  border: 1px solid rgba(201, 165, 95, 0.58);
  background: linear-gradient(130deg, #2a1e13, #17130f);
}

.book-library,
.book-page,
.privacy-page,
.unsubscribe-page {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(2rem, 6vw, 5rem) 0;
}

.book-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
  margin-top: 2rem;
}

.book-card,
.book-masthead,
.privacy-sheet,
.unsubscribe-sheet {
  border: 1px solid rgba(201, 165, 95, 0.3);
  background: linear-gradient(145deg, rgba(36, 22, 13, 0.94), rgba(17, 16, 13, 0.98));
}

.book-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
}

.book-card img {
  width: 100%;
  aspect-ratio: 5 / 8;
  object-fit: contain;
  background: #0d0b09;
}

.book-card__body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 1.25rem;
}

.book-card__body p,
.book-copy p,
.privacy-sheet p,
.privacy-sheet li,
.unsubscribe-sheet p {
  color: var(--muted, #bdaf9b);
  line-height: 1.65;
}

.book-card__actions,
.book-downloads {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: auto;
  padding-top: 1rem;
}

.book-masthead {
  display: grid;
  grid-template-columns: minmax(250px, 0.72fr) 1.25fr;
  gap: clamp(1.5rem, 5vw, 4rem);
  padding: clamp(1.25rem, 4vw, 3rem);
}

.book-masthead > img {
  width: 100%;
  max-height: 720px;
  object-fit: contain;
  background: #0d0b09;
}

.availability-badge {
  display: inline-block;
  margin: 0 0 1rem;
  padding: 0.35rem 0.55rem;
  border: 1px solid rgba(201, 165, 95, 0.45);
  color: var(--brass-pale, #dfc184);
  font: 0.72rem/1.2 var(--font-label, Arial, sans-serif);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.privacy-sheet,
.unsubscribe-sheet {
  max-width: 820px;
  margin: 0 auto;
  padding: clamp(1.4rem, 4vw, 3rem);
}

@media (max-width: 820px) {
  .book-grid { grid-template-columns: 1fr; }
  .book-masthead { grid-template-columns: 1fr; }
  .book-masthead > img { max-height: 68vh; }
}

@media (prefers-reduced-motion: reduce) {
  .membership-dialog,
  .membership-dialog::backdrop { scroll-behavior: auto; }
}