/**
 * Sky Quest — Blog UI (listing + article pages)
 * Content-agnostic presentation layer. Logic lives in blog-list.js / blog-detail.js.
 */

/* ─── Design tokens ─── */
:root {
  --blog-primary: #003a66;
  --blog-primary-deep: #001a2e;
  --blog-accent: #e02454;
  --blog-accent-soft: #ff7043;
  --blog-surface: #ffffff;
  --blog-muted: #64748b;
  --blog-text: #334155;
  --blog-heading: #0f172a;
  --blog-border: #e2e8f0;
  --blog-radius-lg: 1.35rem;
  --blog-radius-md: 0.95rem;
  --blog-shadow-card: 0 4px 6px -1px rgba(15, 23, 42, 0.04), 0 22px 50px -12px rgba(9, 30, 66, 0.12);
  --blog-shadow-hover: 0 8px 12px -2px rgba(15, 23, 42, 0.06), 0 32px 64px -16px rgba(9, 30, 66, 0.18);
  --blog-font-display: "Poppins", sans-serif;
  --blog-font-body: "Open Sans", sans-serif;
}

/* ─── Listing page enhancements ─── */
.blog-page-hero {
  padding-bottom: 3.5rem;
}

.blog-page-body .border-bottom.border-primary {
  border-color: rgba(0, 58, 102, 0.15) !important;
}

.blog-page-grid {
  position: relative;
}

/* Card v3 — base layout (from blog-list.js markup) */
.blog-card-v3-media {
  position: relative;
}

.blog-card-v3-media-inner img,
.blog-card-v3-placeholder {
  width: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.blog-card-v3:hover .blog-card-v3-media-inner img {
  transform: scale(1.06);
}

.blog-card-v3-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #f5f7ff 0%, #eef8ff 100%);
}

.blog-card-v3-media-overlay {
  position: absolute;
  inset: 0;
}

.blog-card-v3-top-meta {
  position: absolute;
  left: 1rem;
  right: 1rem;
  top: 1rem;
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.blog-card-v3-chip {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  font-size: 0.73rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  background: rgba(255, 255, 255, 0.92);
  color: #14213d;
}

.blog-card-v3-chip-soft {
  background: rgba(8, 18, 38, 0.65);
  color: #fff;
}

.blog-card-v3-chip-outline {
  background: #f8fafc;
  border: 1px solid var(--blog-border);
  color: #334155;
  font-weight: 600;
}

.blog-card-v3-featured-pill {
  position: absolute;
  right: 0.95rem;
  top: 0.95rem;
  padding: 0.42rem 0.8rem;
  border-radius: 999px;
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.blog-card-v3-title {
  color: var(--blog-heading);
  line-height: 1.38;
}

.blog-card-v3-excerpt {
  color: var(--blog-muted) !important;
  line-height: 1.65;
}

.blog-card-v3-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
}

.blog-card-v3-avatar {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
}

.blog-card-v3-author {
  font-size: 0.83rem;
  font-weight: 600;
  color: #334155;
}

.blog-card-v3-cta {
  font-size: 0.8rem;
  font-weight: 700;
  color: #1d4ed8;
}

.blog-card-v3-views,
.blog-card-v3-feature-line {
  display: inline-flex;
  align-items: center;
  font-size: 0.78rem;
  color: var(--blog-muted);
}

.blog-card-v3-feature-line {
  color: #d97706;
  margin-top: 0.3rem;
}

/* Card v3 — magazine polish */
.blog-card-v3 {
  border-radius: var(--blog-radius-lg) !important;
  background: var(--blog-surface);
  border: 1px solid rgba(226, 232, 240, 0.9) !important;
  box-shadow: var(--blog-shadow-card);
  transition:
    transform 0.45s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.45s ease,
    border-color 0.35s ease;
  overflow: hidden;
}

.blog-card-v3::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.65);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.blog-card-v3:hover {
  transform: translateY(-10px);
  box-shadow: var(--blog-shadow-hover);
  border-color: rgba(0, 58, 102, 0.12) !important;
}

.blog-card-v3:hover::after {
  opacity: 1;
}

.blog-card-v3-media {
  height: 230px;
  border-radius: 0;
}

.blog-card-v3-media-inner img,
.blog-card-v3-placeholder {
  height: 230px;
}

.blog-card-v3-media-overlay {
  background: linear-gradient(
    to top,
    rgba(0, 26, 46, 0.72) 0%,
    rgba(0, 26, 46, 0.18) 48%,
    transparent 100%
  );
}

.blog-card-v3-top-meta {
  z-index: 2;
}

.blog-card-v3-chip {
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.08);
}

.blog-card-v3-featured-pill {
  z-index: 4;
  background: linear-gradient(135deg, #ffaf38 0%, var(--blog-accent) 55%, #ff4d7d 100%);
  letter-spacing: 0.04em;
  animation: blog-featured-glow 3s ease-in-out infinite;
}

@keyframes blog-featured-glow {
  0%,
  100% {
    box-shadow: 0 8px 22px rgba(224, 36, 84, 0.35);
  }
  50% {
    box-shadow: 0 10px 28px rgba(224, 36, 84, 0.55);
  }
}

.blog-card-v3-title {
  font-family: var(--blog-font-display);
  font-size: 1.12rem;
  letter-spacing: -0.02em;
  transition: color 0.25s ease;
}

.blog-card-v3:hover .blog-card-v3-title {
  color: var(--blog-primary);
}

.blog-card-v3-excerpt {
  font-size: 0.88rem !important;
}

.blog-card-v3-footer {
  border-top: 1px solid var(--blog-border);
  padding-top: 0.85rem;
}

.blog-card-v3-cta {
  transition: transform 0.25s ease, color 0.25s ease;
}

.blog-card-v3:hover .blog-card-v3-cta {
  transform: translateX(4px);
  color: var(--blog-accent);
}

.blog-card-v3-avatar {
  background: linear-gradient(135deg, var(--blog-primary) 0%, #2563eb 100%);
  box-shadow: 0 4px 12px rgba(0, 58, 102, 0.25);
}

.blog-skeleton {
  border: 1px solid var(--blog-border) !important;
}

.blog-empty-state {
  background: linear-gradient(145deg, #fff 0%, #f8fafc 100%);
  border-color: var(--blog-border) !important;
}

/* ─── Article page — hero ─── */
.blog-post-page .post-hero,
.post-hero {
  position: relative;
  isolation: isolate;
  background: linear-gradient(125deg, var(--blog-primary-deep) 0%, #003a66 38%, #0a4d7a 72%, #1a5f8a 100%);
  padding-bottom: 4.5rem;
}

.post-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 12% 18%, rgba(224, 36, 84, 0.22), transparent 42%),
    radial-gradient(circle at 88% 8%, rgba(59, 130, 246, 0.18), transparent 38%),
    url(../img/breadcrumb.png);
  background-size: cover;
  background-position: center;
  opacity: 0.35;
  z-index: -2;
}

.post-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, transparent 0%, rgba(0, 26, 46, 0.4) 100%),
    repeating-linear-gradient(
      -45deg,
      transparent,
      transparent 28px,
      rgba(255, 255, 255, 0.02) 28px,
      rgba(255, 255, 255, 0.02) 56px
    );
  z-index: -1;
  pointer-events: none;
}

.post-hero-dot {
  width: 0.55rem;
  height: 0.55rem;
  background: var(--blog-accent);
  box-shadow: 0 0 0 4px rgba(224, 36, 84, 0.28);
  animation: blog-dot-pulse 2.5s ease-in-out infinite;
}

@keyframes blog-dot-pulse {
  0%,
  100% {
    box-shadow: 0 0 0 4px rgba(224, 36, 84, 0.28);
  }
  50% {
    box-shadow: 0 0 0 7px rgba(224, 36, 84, 0.12);
  }
}

.post-hero h1 {
  font-family: var(--blog-font-display);
  letter-spacing: -0.03em;
  line-height: 1.15;
  text-shadow: 0 2px 24px rgba(0, 0, 0, 0.15);
}

.post-meta-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.42rem 0.75rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.78rem;
  font-weight: 600;
  backdrop-filter: blur(12px);
  transition: background 0.25s ease, border-color 0.25s ease;
}

.post-meta-pill:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.35);
}

/* ─── Article shell & card ─── */
.post-shell {
  margin-top: -4rem;
  position: relative;
  z-index: 2;
}

.post-card {
  border-radius: var(--blog-radius-lg) !important;
  border: 1px solid rgba(226, 232, 240, 0.95) !important;
  background: var(--blog-surface);
  box-shadow: var(--blog-shadow-card);
  overflow: hidden;
}

.post-card::before {
  content: "";
  display: block;
  height: 4px;
  background: linear-gradient(90deg, var(--blog-primary), #2563eb 45%, var(--blog-accent) 100%);
}

.post-cover {
  width: 100%;
  display: block;
  aspect-ratio: 16 / 9;
  max-height: none;
  object-fit: cover;
  object-position: center;
  border-radius: var(--blog-radius-md);
  box-shadow:
    0 4px 6px rgba(15, 23, 42, 0.06),
    0 20px 40px rgba(9, 30, 66, 0.12);
  border: 3px solid #fff;
  outline: 1px solid var(--blog-border);
  background: #f1f5f9;
}

/* Sky Quest styled in-article banners */
.post-banner,
.post-mid-banner {
  margin: 0;
  border-radius: var(--blog-radius-md);
  overflow: hidden;
  border: 1px solid var(--blog-border);
  box-shadow:
    0 8px 24px rgba(9, 30, 66, 0.1),
    0 2px 8px rgba(15, 23, 42, 0.04);
  background: #f8fafc;
}

.post-banner {
  margin-bottom: 1.75rem;
}

.post-mid-banner {
  margin: 2.5rem 0;
}

.post-banner img,
.post-mid-banner img {
  width: 100%;
  display: block;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: center;
}

.post-cover.post-inline-banner {
  max-height: none;
}

.post-category-chip {
  background: linear-gradient(135deg, #eff6ff 0%, #f0f9ff 100%);
  color: var(--blog-primary);
  border: 1px solid #bfdbfe;
  letter-spacing: 0.02em;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.08);
}

/* ─── Article typography ─── */
.post-content {
  font-family: var(--blog-font-body);
  font-size: 1.05rem;
}

.post-content > p:first-of-type {
  font-size: 1.12rem;
  color: #1e293b;
  line-height: 1.85;
}

.post-content h2 {
  font-family: var(--blog-font-display);
  color: var(--blog-heading);
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-top: 2.25rem;
  margin-bottom: 0.85rem;
  padding-left: 1rem;
  border-left: 4px solid var(--blog-primary);
  line-height: 1.35;
}

.post-content h3 {
  font-family: var(--blog-font-display);
  color: #1e293b;
  font-size: 1.15rem;
  font-weight: 600;
  margin-top: 1.5rem;
  margin-bottom: 0.55rem;
  position: relative;
  padding-left: 0.75rem;
}

.post-content h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--blog-accent);
}

.post-content p,
.post-content li {
  color: var(--blog-text);
  line-height: 1.88;
  font-size: 1.02rem;
}

.post-content ul,
.post-content ol {
  padding-left: 0;
  margin: 1rem 0 1.25rem;
  list-style: none;
}

.post-content ul li,
.post-content ol li {
  position: relative;
  padding-left: 1.65rem;
  margin-bottom: 0.55rem;
}

.post-content ul li::before {
  content: "";
  position: absolute;
  left: 0.35rem;
  top: 0.72em;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: linear-gradient(135deg, var(--blog-primary), #3b82f6);
  transform: rotate(45deg);
}

.post-content ol {
  counter-reset: blog-ol;
}

.post-content ol li {
  counter-increment: blog-ol;
}

.post-content ol li::before {
  content: counter(blog-ol);
  position: absolute;
  left: 0;
  top: 0.15em;
  width: 1.35rem;
  height: 1.35rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blog-primary), #2563eb);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.post-content table {
  width: 100%;
  margin: 1.5rem 0;
  border-collapse: separate;
  border-spacing: 0;
  border-radius: var(--blog-radius-md);
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.06);
  border: 1px solid var(--blog-border);
}

.post-content table th,
.post-content table td {
  border: none;
  border-bottom: 1px solid var(--blog-border);
  padding: 0.75rem 1rem;
  color: var(--blog-text);
  font-size: 0.95rem;
}

.post-content table tr:last-child td {
  border-bottom: none;
}

.post-content table th {
  background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
  font-weight: 700;
  color: var(--blog-heading);
  font-family: var(--blog-font-display);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.post-content table tbody tr:nth-child(even) td {
  background: #fafbfc;
}

.post-content table tbody tr:hover td {
  background: #f0f7ff;
}

/* ─── Footer panel & related ─── */
.post-footer-panel {
  border: 1px solid var(--blog-border);
  border-radius: var(--blog-radius-md);
  background: linear-gradient(145deg, #f8fafc 0%, #fff 55%, #f0f7ff 100%);
  position: relative;
  overflow: hidden;
}

.post-footer-panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blog-primary), var(--blog-accent));
}

.related-link {
  color: #1d4ed8;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.2rem 0;
  transition: color 0.2s ease, transform 0.2s ease;
}

.related-link::before {
  content: "→";
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  font-size: 0.85em;
}

.related-link:hover {
  color: var(--blog-accent);
  transform: translateX(2px);
}

.related-link:hover::before {
  opacity: 1;
  transform: translateX(0);
}

/* ─── CTA band (article pages) ─── */
.blog-page-cta {
  position: relative;
  overflow: hidden;
}

.blog-page-cta .btn-light {
  font-weight: 600;
  border: none;
}

.blog-page-cta .btn-outline-light {
  border-width: 2px;
  font-weight: 600;
}

/* ─── Blog detail (dynamic page) — base layout ─── */
.blog-detail-back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: #1d4ed8;
  font-weight: 700;
  text-decoration: none;
}

.blog-permalink {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.82rem;
  background: #f8fafc;
  border: 1px solid var(--blog-border);
  border-radius: 999px;
  padding: 0.35rem 0.8rem;
}

.blog-permalink code {
  color: #2563eb;
  margin: 0;
}

.blog-detail-meta-row {
  display: flex;
  gap: 0.55rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.blog-detail-meta-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.72rem;
  border-radius: 999px;
  background: #f8fafc;
  border: 1px solid var(--blog-border);
  color: #334155;
  font-size: 0.78rem;
  font-weight: 600;
}

.blog-detail-cover {
  border-radius: var(--blog-radius-md);
  overflow: hidden;
}

.blog-detail-excerpt {
  border-left: 4px solid #2563eb;
  background: linear-gradient(90deg, rgba(37, 99, 235, 0.06), transparent);
  padding: 0.9rem 1rem;
  border-radius: 0.7rem;
}

.blog-detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.blog-detail-tag {
  display: inline-flex;
  align-items: center;
  padding: 0.32rem 0.72rem;
  border-radius: 999px;
  border: 1px solid var(--blog-border);
  background: #fff;
  font-size: 0.76rem;
  font-weight: 600;
  color: #334155;
}

.blog-detail-body {
  margin-top: 1.2rem;
  border-top: 1px solid var(--blog-border);
  padding-top: 1.4rem;
  color: #1e293b;
  line-height: 1.82;
  font-size: 1.02rem;
}

.blog-detail-body h2,
.blog-detail-body h3,
.blog-detail-body h4 {
  margin-top: 1.6rem;
  margin-bottom: 0.75rem;
  color: var(--blog-heading);
  line-height: 1.3;
}

.blog-detail-body p,
.blog-detail-body ul,
.blog-detail-body ol {
  margin-bottom: 0.95rem;
}

.blog-detail-body img {
  max-width: 100%;
  height: auto;
  border-radius: 0.85rem;
}

/* ─── Blog detail (dynamic page) — polish ─── */
.blog-detail-shell {
  margin-top: 0;
  position: relative;
  z-index: 2;
  background: linear-gradient(180deg, #f8fafc 0%, #fff 40%);
}

.blog-detail-surface {
  border-radius: var(--blog-radius-lg);
  border: 1px solid var(--blog-border);
  box-shadow: var(--blog-shadow-card);
  position: relative;
  overflow: hidden;
}

.blog-detail-surface::before {
  content: "";
  display: block;
  height: 4px;
  background: linear-gradient(90deg, var(--blog-primary), #2563eb 45%, var(--blog-accent) 100%);
}

.blog-detail-back-link {
  font-family: var(--blog-font-display);
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  background: #f1f5f9;
  border: 1px solid var(--blog-border);
  transition: all 0.25s ease;
}

.blog-detail-back-link:hover {
  background: var(--blog-primary);
  color: #fff !important;
  border-color: var(--blog-primary);
}

.blog-detail-title {
  font-family: var(--blog-font-display);
}

.blog-detail-cover img {
  border-radius: var(--blog-radius-md);
  border: 3px solid #fff;
  outline: 1px solid var(--blog-border);
  box-shadow: 0 20px 40px rgba(9, 30, 66, 0.12);
}

.blog-detail-body {
  font-family: var(--blog-font-body);
}

.blog-detail-body h2 {
  border-left: 4px solid var(--blog-primary);
  padding-left: 1rem;
  font-family: var(--blog-font-display);
}

.blog-detail-meta-chip {
  transition: border-color 0.2s ease, background 0.2s ease;
}

.blog-detail-meta-chip:hover {
  border-color: #bfdbfe;
  background: #eff6ff;
}

/* ─── Responsive ─── */
@media (max-width: 767.98px) {
  .post-shell {
    margin-top: -2.75rem;
  }

  .post-hero {
    padding-bottom: 3.25rem;
  }

  .post-hero h1 {
    font-size: 1.65rem;
  }

  .post-content h2 {
    font-size: 1.25rem;
    padding-left: 0.75rem;
  }

  .blog-card-v3-media,
  .blog-card-v3-media-inner img,
  .blog-card-v3-placeholder {
    height: 200px;
  }
}

@media (min-width: 1200px) {
  .post-card .card-body {
    padding: 2.5rem 3rem !important;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .blog-card-v3,
  .blog-card-v3-featured-pill,
  .post-hero-dot,
  .related-link,
  .blog-detail-back-link {
    animation: none !important;
    transition: none !important;
  }
}