/* =========================================================================
   Author Profile Page — Day (Claude warm parchment) / Night (Binance dark gold)
   ----------------------------------------------------------------------------
   Hero pattern mirrors single-post .bn-post-hero (Gaussian-blur cover + dual
   radial-gradient overlay) but inverts the overlay so text stays in the
   theme's native ink color (parchment-dark / dark-on-light) rather than
   forcing white-on-image. All colors flow from the global design-system.css
   tokens so [data-bs-theme="dark"] swaps the entire palette without JS.
   ========================================================================= */

/* Hero ------------------------------------------------------------------- */
.bn-author-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 36px 20px 28px;
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.bn-author-hero__bg {
  position: absolute;
  inset: -16px;
  background: var(--hero-bg) center / cover no-repeat;
  /* Avatar is square — over-blur so it reads as ambient color, not a portrait. */
  filter: blur(28px) saturate(1.2);
  transform: scale(1.1);
  opacity: 0.85;
  z-index: 0;
}

.bn-author-hero__overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    radial-gradient(circle at 18% 10%, rgba(201, 100, 66, 0.32), transparent 55%),
    radial-gradient(circle at 82% 90%, rgba(252, 213, 53, 0.18), transparent 55%),
    linear-gradient(180deg, rgba(245, 244, 237, 0.55) 0%, rgba(245, 244, 237, 0.92) 100%);
}

[data-bs-theme="dark"] .bn-author-hero__overlay {
  background:
    radial-gradient(circle at 18% 10%, rgba(252, 213, 53, 0.18), transparent 55%),
    radial-gradient(circle at 82% 90%, rgba(240, 185, 11, 0.10), transparent 55%),
    linear-gradient(180deg, rgba(11, 14, 17, 0.55) 0%, rgba(11, 14, 17, 0.92) 100%);
}

.bn-author-hero__inner {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 720px;
}

/* Avatar — generous ring + soft drop, so it floats off the blurred bg ----- */
.bn-author-hero__avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--bn-canvas-light);
  box-shadow:
    0 0 0 1px var(--bn-border-strong),
    0 8px 28px rgba(0, 0, 0, 0.18);
  background: var(--bn-surface-soft-light);
}

[data-bs-theme="dark"] .bn-author-hero__avatar {
  border-color: var(--bn-surface-card-dark);
  box-shadow:
    0 0 0 1px var(--bn-hairline-on-dark),
    0 8px 28px rgba(0, 0, 0, 0.5);
  background: var(--bn-surface-card-dark);
}

/* Name + badge ----------------------------------------------------------- */
.bn-author-hero__name {
  font-family: var(--bn-font-display);
  font-size: clamp(24px, 1.4rem + 1vw, 32px);
  font-weight: 700;
  line-height: var(--bn-lh-tight);
  letter-spacing: -0.01em;
  color: var(--bn-ink);
  margin: 12px 0 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

[data-bs-theme="dark"] .bn-author-hero__name {
  color: var(--bn-on-dark);
}

.bn-author-hero__badge .badge {
  font-size: 12px;
  vertical-align: middle;
}

/* Bio + meta line -------------------------------------------------------- */
.bn-author-hero__bio {
  font-family: var(--bn-font-body);
  font-size: 16px;
  line-height: var(--bn-lh-body);
  color: var(--bn-muted);
  max-width: 540px;
  margin: 12px auto 0;
}

[data-bs-theme="dark"] .bn-author-hero__bio {
  color: var(--bn-muted-strong);
}

.bn-author-hero__meta {
  margin-top: 10px;
  font-size: var(--bn-fs-caption);
  color: var(--bn-muted-strong);
}

.bn-author-hero__meta i {
  margin-right: 4px;
}

/* Stat panel — glass card with hairline separators ----------------------- */
.bn-author-stats {
  display: inline-flex;
  align-items: stretch;
  margin-top: 16px;
  padding: 12px 8px;
  border-radius: var(--bn-radius-xl);
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid var(--bn-hairline-on-light);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

[data-bs-theme="dark"] .bn-author-stats {
  background: rgba(30, 35, 41, 0.55);
  border-color: var(--bn-hairline-on-dark);
}

.bn-author-stats__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 28px;
  position: relative;
}

.bn-author-stats__item + .bn-author-stats__item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 32px;
  background: var(--bn-hairline-on-light);
}

[data-bs-theme="dark"] .bn-author-stats__item + .bn-author-stats__item::before {
  background: var(--bn-hairline-on-dark);
}

.bn-author-stats__num {
  display: block;
  font-family: var(--bn-font-number);
  font-size: 32px;
  font-weight: 700;
  line-height: 1;
  color: var(--bn-ink);
  /* tabular-nums keeps the row from jiggling when counts increment. */
  font-variant-numeric: tabular-nums lining-nums;
}

[data-bs-theme="dark"] .bn-author-stats__num {
  color: var(--bn-on-dark);
}

.bn-author-stats__label {
  margin-top: 6px;
  font-family: var(--bn-font-body);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--bn-muted);
}

/* Hero actions */
.bn-author-hero__actions {
  margin-top: 24px;
}

/* Follow button — token-driven, dual-theme primary CTA -------------------- */
.bn-follow-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 24px;
  font-family: var(--bn-font-body);
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--bn-radius-pill);
  background: var(--bn-primary);
  color: var(--bn-on-primary);
  border: 1px solid var(--bn-primary);
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
  line-height: 1.4;
  gap: 4px;
  min-width: 100px;
}

.bn-follow-btn:hover {
  background: var(--bn-primary-active);
  border-color: var(--bn-primary-active);
  color: var(--bn-on-primary);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(var(--bn-primary-rgb), 0.32);
}

.bn-follow-btn.is-following {
  background: transparent;
  color: var(--bn-ink);
  border-color: var(--bn-border-strong);
}

[data-bs-theme="dark"] .bn-follow-btn.is-following {
  color: var(--bn-on-dark);
  border-color: var(--bn-hairline-on-dark);
}

.bn-follow-btn.is-following:hover {
  border-color: var(--bn-trading-down);
  color: var(--bn-trading-down);
  background: rgba(246, 70, 93, 0.06);
  box-shadow: none;
}

.bn-follow-btn.is-loading {
  pointer-events: none;
  opacity: 0.6;
}

.bn-follow-btn--hero {
  padding: 10px 36px;
  font-size: 15px;
}

.bn-follow-btn--sm {
  padding: 4px 14px;
  font-size: 12px;
  min-width: 72px;
}

/* Author archive (full-width article grid below hero) -------------------- */
.bn-author-archive {
  background: var(--bn-canvas-light);
  padding: 24px 0 48px;
  min-height: 400px;
}

.bn-author-archive > .container-fluid {
  max-width: 1600px;
  margin: 0 auto;
}

[data-bs-theme="dark"] .bn-author-archive {
  background: var(--bn-canvas-dark);
}

.bn-author-archive__heading {
  font-family: var(--bn-font-display);
  font-size: var(--bn-fs-display-sm);
  font-weight: 700;
  line-height: var(--bn-lh-tight);
  color: var(--bn-ink);
  margin: 0 0 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}

[data-bs-theme="dark"] .bn-author-archive__heading {
  color: var(--bn-on-dark);
}

.bn-author-archive__count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  height: 24px;
  padding: 0 10px;
  font-family: var(--bn-font-body);
  font-size: 13px;
  font-weight: 600;
  color: var(--bn-primary);
  background: rgba(var(--bn-primary-rgb), 0.10);
  border-radius: var(--bn-radius-pill);
}

.bn-author-archive__empty {
  text-align: center;
  padding: 80px 20px;
  color: var(--bn-muted-strong);
  font-size: 15px;
}

/* 作者文章列表：专用 CSS Grid，与全站 .posts-warp 解耦；lg+ 固定 5 列等分铺满。 */
.bn-author-archive .bn-author-posts-grid {
  display: grid;
  gap: 0.5rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

@media (min-width: 768px) {
  .bn-author-archive .bn-author-posts-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 992px) {
  .bn-author-archive .bn-author-posts-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 1rem;
  }
}

.bn-author-archive .bn-author-posts-grid > .col {
  width: 100% !important;
  max-width: none !important;
  flex: none !important;
  min-width: 0;
}

.bn-author-archive .bn-author-posts-grid > .col > .post-item {
  min-width: 0;
}

/* Responsive ------------------------------------------------------------- */

/* Tablet — author hero shrinks slightly, stats spacing tightens. */
@media (max-width: 991.98px) {
  .bn-author-hero {
    padding: 32px 24px 24px;
    min-height: 180px;
  }

  .bn-author-hero__inner {
    gap: 20px;
  }

  .bn-author-hero__avatar {
    width: 100px;
    height: 100px;
  }

  .bn-author-hero__name {
    font-size: 30px;
  }

  .bn-author-stats {
    padding: 16px 6px;
  }

  .bn-author-stats__item {
    padding: 0 24px;
  }

  .bn-author-stats__num {
    font-size: 30px;
  }

  .bn-author-archive__grid {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  }
}

/* Wave 7.4.2: tablet-portrait (768-1023) — slightly tighter content
 * inside the existing 991.98 cap; ensure post grid uses an even
 * 3-column at this width without stretching cards. */
@media (min-width: 768px) and (max-width: 1023.98px) {
  .bn-author-hero__inner {
    gap: 18px;
  }
  .bn-author-archive__grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  }
  .bn-author-stats__item {
    padding: 0 28px;
  }
}

/* Wave 7.4.2: tablet-landscape tier (1024-1279) — between mobile-friendly
 * 992 layout and full desktop. Card grid sweet spot is 3 cols here. */
@media (min-width: 1024px) and (max-width: 1279.98px) {
  .bn-author-hero {
    padding: 34px 28px 26px;
  }
  .bn-author-hero__name {
    font-size: 32px;
  }
  .bn-author-archive__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 767.98px) {
  .bn-author-hero {
    padding: 28px 16px 22px;
    min-height: 160px;
  }

  .bn-author-stats {
    padding: 14px 4px;
  }

  .bn-author-stats__item {
    padding: 0 20px;
  }

  .bn-author-stats__num {
    font-size: 28px;
  }
}

@media (max-width: 575.98px) {
  .bn-author-hero {
    padding: 24px 16px 20px;
    min-height: 140px;
  }

  .bn-author-hero__avatar {
    width: 88px;
    height: 88px;
    border-width: 3px;
  }

  .bn-author-hero__name {
    font-size: 24px;
  }

  .bn-author-hero__bio {
    font-size: 14px;
  }

  .bn-author-stats {
    display: flex;
    flex-wrap: wrap;
    width: 100%;
    padding: 12px 0;
    gap: 4px 0;
  }

  .bn-author-stats__item {
    padding: 8px 12px;
    flex: 1 0 40%;
  }

  /* On wrap, vertical hairlines become misleading — drop them and lean on
     the panel edge + flex gap for separation. */
  .bn-author-stats__item + .bn-author-stats__item::before {
    display: none;
  }

  .bn-author-stats__num {
    font-size: 24px;
  }

  .bn-follow-btn--hero {
    padding: 9px 28px;
    font-size: 14px;
  }

  .bn-author-archive {
    padding: 16px 0 32px;
  }

  .bn-author-archive__heading {
    font-size: 22px;
  }
}