/* ==========================================================================
   Book Series Detail Page - Editorial Redesign (Collections Archive)
   ========================================================================== */

:root {
  --sb-bg: var(--tf-bg);
  --sb-ink: #1b1c15;
  --sb-ink-soft: #4a4c44;
  --sb-accent: #173124;
  --sb-stone: #727973;
  --sb-bone: var(--tf-bg-mid);
  --sb-border: rgba(27, 28, 21, 0.1);
  --series-sequence-width: min(820px, 100%);
  --manrope: "Manrope", sans-serif;
  --newsreader: "Newsreader", serif;
}

.tf-page--series-detail {
  background: var(--sb-bg);
  min-height: 100vh;
  color: var(--sb-ink);
  padding-top: 10px;
}

.editorial-container {
  width: var(--tf-public-w);
  max-width: var(--tf-public-max-w);
  margin: 0 auto;
  padding-inline: 0;
  padding-block: clamp(24px, 4vw, 42px);
}

/* ------------------------------
   Breadcrumb
   ------------------------------ */
.series-dtl-breadcrumb {
  font-family: var(--manrope);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--sb-stone);
  margin-bottom: 14px;
}

.series-dtl-breadcrumb a {
  text-decoration: none;
  color: inherit;
}

.series-dtl-breadcrumb a:hover {
  color: var(--sb-ink);
}

/* ------------------------------
   Profile Hero
   ------------------------------ */
.series-dtl-hero {
  margin-bottom: 30px;
  border-bottom: 1.5px solid var(--sb-ink);
  padding-bottom: 28px;
}

.series-dtl-hero__layout {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: clamp(28px, 5vw, 64px);
}

.series-dtl-hero__content {
  flex: 1;
  max-width: 700px;
}

.series-dtl-title {
  font-family: var(--newsreader);
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 500;
  line-height: 1.0;
  letter-spacing: -0.04em;
  margin-bottom: 14px;
}

.series-dtl-sub {
  font-family: var(--manrope);
  font-size: 0.98rem;
  line-height: 1.55;
  color: var(--sb-ink-soft);
  margin-bottom: 22px;
  max-width: 72ch;
}

.series-dtl-hero__footer {
  display: flex;
  align-items: center;
  gap: 28px;
  border-top: 1px solid var(--sb-border);
  padding-top: 16px;
}

.series-dtl-meta {
  display: flex;
  gap: 32px;
}

.series-dtl-meta__item {
  font-family: var(--manrope);
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--sb-stone);
  display: flex;
  align-items: center;
}

.series-dtl-hero__media {
  flex: 0 0 clamp(190px, 18vw, 260px);
}

.series-dtl-cover {
  aspect-ratio: 3 / 4;
  background: var(--sb-bone);
  overflow: hidden;
  box-shadow: 14px 16px 38px rgba(27, 28, 21, 0.06);
}

.series-dtl-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ------------------------------
   Sequence Section
   ------------------------------ */
.series-dtl-sequence {
  margin-bottom: 72px;
}

.series-dtl-section-title {
  font-family: var(--newsreader);
  font-size: 1.65rem;
  font-weight: 500;
  margin-bottom: 24px;
  text-transform: capitalize;
  border-bottom: 1px solid var(--sb-ink);
  padding-bottom: 12px;
  display: inline-block;
}

.series-dtl-section-header {
  width: var(--series-sequence-width);
  max-width: 100%;
  margin-inline: auto;
}

.series-dtl-books {
  display: flex;
  flex-direction: column;
  gap: 22px;
  width: var(--series-sequence-width);
  max-width: 100%;
  margin-inline: auto;
}

.series-book-card {
  display: flex;
  gap: 22px;
  align-items: flex-start;
  min-height: 220px;
  width: 100%;
  padding: 20px;
  background: white;
  border: 1px solid var(--sb-border);
  transition: all 0.3s;
}

.series-book-card:hover {
  transform: translateX(4px);
  border-color: var(--sb-ink);
  box-shadow: 0 18px 46px rgba(27, 28, 21, 0.045);
}

.series-book-card__index {
  flex: 0 0 112px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
  text-align: left;
}

.series-book-idx {
  font-family: var(--newsreader);
  font-style: italic;
  font-size: 1rem;
  color: var(--sb-stone);
  opacity: 0.8;
  white-space: nowrap;
}

.series-book-card__body {
  flex: 1;
  min-width: 0;
  padding-top: 2px;
}

.series-book-card__header {
  margin-bottom: 12px;
}

.series-book-card__title {
  font-family: var(--newsreader);
  font-size: 1.35rem;
  font-weight: 500;
  line-height: 1.15;
  margin-bottom: 6px;
}

.series-book-card__meta {
  font-family: var(--manrope);
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--sb-stone);
  display: flex;
  align-items: center;
  gap: 12px;
}

.series-book-card__desc {
  font-family: var(--manrope);
  font-size: 0.86rem;
  line-height: 1.5;
  color: var(--sb-ink-soft);
  margin-bottom: 18px;
  max-width: 58ch;
}

.series-book-card__actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.series-book-btn {
  font-family: var(--manrope);
  font-weight: 700;
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  padding: 10px 14px;
  border-radius: 2px;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
}

.series-book-btn--primary {
  background: var(--sb-ink);
  color: white;
  border: 1px solid var(--sb-ink);
}

.series-book-btn--primary:hover {
  background: var(--sb-accent);
  border-color: var(--sb-accent);
}

.series-book-btn--outline {
  border: 1px solid var(--sb-border);
  color: var(--sb-ink);
}

.series-book-btn--outline:hover {
  border-color: var(--sb-ink);
}

.series-book-card__media {
  width: 92px;
  flex: 0 0 auto;
}

.series-book-card__media img {
  width: 100%;
  aspect-ratio: 2 / 3;
  object-fit: cover;
  box-shadow: 8px 10px 22px rgba(27, 28, 21, 0.08);
}

/* ------------------------------
   Discussion Section
   ------------------------------ */
.series-dtl-discussion {
  border-top: 1px solid var(--sb-ink);
  padding-top: 46px;
}

/* Reactions deferred to global base.css system settings */

/* ------------------------------
   Responsive
   ------------------------------ */
@media (max-width: 1024px) {
  .series-dtl-hero__layout {
    flex-direction: column-reverse;
    align-items: center;
    text-align: center;
    gap: 28px;
  }
  .series-dtl-hero__footer {
    flex-direction: column;
    gap: 16px;
  }
}

@media (max-width: 768px) {
  .series-book-card {
    flex-direction: column;
    gap: 18px;
    min-height: 0;
  }
  .series-book-card__index { flex: 0 0 auto; }
  .series-book-card__media { width: 96px; }
}