/* ═══════════════════════════════════════════════════════════════
   RIVEL Blog — Premium editorial design
   Aligned with site DNA: ambient orb, hologram accents,
   glassmorphic cards, numbered eyebrow, Geist typography.
   ═══════════════════════════════════════════════════════════════ */

:root {
  --rvb-bg: #000;
  --rvb-surface-1: rgba(255, 255, 255, 0.04);
  --rvb-surface-2: rgba(255, 255, 255, 0.06);
  --rvb-border: rgba(255, 255, 255, 0.08);
  --rvb-border-hover: rgba(255, 255, 255, 0.18);
  --rvb-text: #fff;
  --rvb-text-2: rgba(255, 255, 255, 0.75);
  --rvb-text-3: rgba(255, 255, 255, 0.55);
  --rvb-text-4: rgba(255, 255, 255, 0.35);
  --rvb-accent: #1c52ff;
}

/* ═══════════════════════════════════════════
   BLOG LIST (blog.html)
   ═══════════════════════════════════════════ */

.rv-blog-section {
  position: relative;
  background: var(--rvb-bg);
  color: var(--rvb-text);
  font-family: Geist, 'Space Grotesk', 'Manrope', sans-serif;
  padding: 6rem 1.5rem 5rem;
  overflow: hidden;
  isolation: isolate;
}

/* Ambient blue orb glow behind hero */
.rv-blog-section::before {
  content: '';
  position: absolute;
  top: -220px;
  left: 50%;
  transform: translateX(-50%);
  width: min(900px, 95vw);
  height: 900px;
  background: radial-gradient(circle at 50% 45%, rgba(28, 82, 255, 0.28) 0%, rgba(28, 82, 255, 0.07) 32%, transparent 60%);
  filter: blur(40px);
  pointer-events: none;
  z-index: 0;
}

.rv-blog-container {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
}

/* ─── HEADER ─── */
.rv-blog-header {
  text-align: center;
  margin-bottom: 4rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
}

.rv-blog-title {
  font-size: clamp(2.25rem, 5.5vw, 3.75rem);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.04em;
  color: var(--rvb-text);
  margin: 0.5rem 0 0;
  max-width: 22ch;
}

.rv-blog-subtitle {
  font-size: 1.0625rem;
  color: var(--rvb-text-3);
  font-weight: 400;
  line-height: 1.55;
  max-width: 36rem;
  margin: 0;
}

/* ─── GRID ─── */
.rv-blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 5rem;
}

/* ─── BLOG CARD ─── */
.rv-blog-card {
  position: relative;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04) 0%, rgba(255, 255, 255, 0.01) 100%);
  border: 1px solid var(--rvb-border);
  border-radius: 1.5rem;
  overflow: hidden;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.25s ease, background 0.25s ease;
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}
.rv-blog-card:hover {
  border-color: var(--rvb-border-hover);
  transform: translateY(-4px);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.055) 0%, rgba(255, 255, 255, 0.02) 100%);
}

.rv-blog-card-link {
  display: flex;
  flex-direction: column;
  height: 100%;
  text-decoration: none;
  color: inherit;
}

.rv-blog-card-image-wrap {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #0a0a0a;
  border-bottom: 1px solid var(--rvb-border);
}
.rv-blog-card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.rv-blog-card:hover .rv-blog-card-image {
  transform: scale(1.05);
}

/* Subtle gradient overlay on image */
.rv-blog-card-image-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(0, 0, 0, 0.3) 100%);
  pointer-events: none;
}

.rv-blog-card-content {
  padding: 1.75rem 1.75rem 1.875rem;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
  flex: 1;
}

.rv-blog-card-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem 0.625rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--rvb-text-4);
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
  min-height: 1.5em;
}
/* Keep date + read time together; don't let them split individually */
.rv-blog-card-date,
.rv-blog-card-read {
  white-space: nowrap;
  flex-shrink: 0;
}
.rv-blog-card-meta-dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  flex-shrink: 0;
}

.rv-blog-card-title {
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: var(--rvb-text);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.rv-blog-card-excerpt {
  font-size: 0.9rem;
  color: var(--rvb-text-3);
  line-height: 1.55;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.rv-blog-card-cta {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--rvb-text-2);
  padding-top: 0.5rem;
  transition: color 0.2s, gap 0.2s;
}
.rv-blog-card-cta svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  transition: transform 0.2s;
}
.rv-blog-card:hover .rv-blog-card-cta {
  color: var(--rvb-text);
  gap: 0.625rem;
}

/* ─── FEATURED CARD (first post, full-width banner) ───
   Always spans ALL columns so the content side has real breathing room
   regardless of how many posts exist. This avoids the previous bug where
   span 2 of 3 cols + flex 1.3:1 gave the content column ~260px — too narrow
   for the 1.75rem title, causing awkward every-two-words wrapping. */
.rv-blog-card-featured {
  grid-column: 1 / -1;
  grid-row: span 1;
}
.rv-blog-card-featured .rv-blog-card-link {
  flex-direction: row;
  align-items: stretch;
}
.rv-blog-card-featured .rv-blog-card-image-wrap {
  aspect-ratio: auto;
  flex: 1 1 55%;
  min-height: 380px;
  border-bottom: none;
  border-right: 1px solid var(--rvb-border);
}
.rv-blog-card-featured .rv-blog-card-content {
  flex: 1 1 45%;
  padding: 3rem 3rem 2.75rem;
  gap: 1.125rem;
  justify-content: center;
  min-width: 0; /* allow flex child to shrink below intrinsic width */
}
.rv-blog-card-featured .rv-blog-card-title {
  font-size: clamp(1.5rem, 2.25vw, 2.125rem);
  -webkit-line-clamp: 3;
  line-height: 1.15;
  letter-spacing: -0.025em;
}
.rv-blog-card-featured .rv-blog-card-excerpt {
  -webkit-line-clamp: 3;
  font-size: 1rem;
  line-height: 1.6;
}

/* Featured badge */
.rv-blog-card-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 3px 10px;
  border-radius: 100vw;
  background: linear-gradient(90deg, #c9aaff, #b3e2ff, #839aff);
  color: #0a0a0a;
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  width: fit-content;
  box-shadow: 0 4px 12px -2px rgba(131, 154, 255, 0.35);
}

/* ─── EMPTY STATE ─── */
.rv-blog-empty {
  padding: 6rem 2rem;
  text-align: center;
  border: 1px dashed rgba(255, 255, 255, 0.12);
  border-radius: 1.5rem;
  background: rgba(255, 255, 255, 0.02);
  margin-bottom: 5rem;
}
.rv-blog-empty-icon {
  font-size: 2rem;
  opacity: 0.3;
  margin-bottom: 1rem;
}
.rv-blog-empty-title {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--rvb-text-2);
  margin: 0 0 0.5rem;
}
.rv-blog-empty-desc {
  font-size: 0.95rem;
  color: var(--rvb-text-3);
  margin: 0;
}

/* ═══════════════════════════════════════════
   BLOG DETAIL / ARTICLE (detail_blog-posts.html)
   ═══════════════════════════════════════════ */

.rv-article-section {
  position: relative;
  background: var(--rvb-bg);
  color: var(--rvb-text);
  font-family: Geist, 'Space Grotesk', 'Manrope', sans-serif;
  padding: 5rem 1.5rem 4rem;
  overflow: hidden;
  isolation: isolate;
}
.rv-article-section::before {
  content: '';
  position: absolute;
  top: -280px;
  left: 50%;
  transform: translateX(-50%);
  width: min(700px, 90vw);
  height: 700px;
  background: radial-gradient(circle at 50% 45%, rgba(28, 82, 255, 0.18) 0%, rgba(28, 82, 255, 0.04) 40%, transparent 70%);
  filter: blur(40px);
  pointer-events: none;
  z-index: 0;
}

.rv-article-container {
  position: relative;
  z-index: 1;
  max-width: 820px;
  margin: 0 auto;
}

/* ─── BACK LINK ─── */
.rv-article-back {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  color: var(--rvb-text-3);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.5rem 0.875rem 0.5rem 0.625rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 100vw;
  background: rgba(255, 255, 255, 0.03);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  transition: all 0.2s ease;
  margin-bottom: 2.5rem;
}
.rv-article-back:hover {
  color: var(--rvb-text);
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.06);
  transform: translateX(-2px);
}
.rv-article-back svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
}

/* ─── HEADER ─── */
.rv-article-header {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2.5rem;
  text-align: left;
}

.rv-article-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--rvb-text-4);
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
  text-transform: uppercase;
}
.rv-article-meta-dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
}

/* Title typography — clean cascade now that we've removed the Webflow
   .heading-2 / .blog compat classes from the markup. No !important needed. */
h1.rv-article-title {
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.035em;
  color: var(--rvb-text);
  font-family: Geist, 'Space Grotesk', 'Manrope', sans-serif;
  margin: 0;
  text-align: left;
  text-transform: none;
}
h2.rv-blog-card-title {
  font-family: Geist, 'Space Grotesk', 'Manrope', sans-serif;
  text-transform: none;
}

.rv-article-excerpt {
  font-size: 1.0625rem;
  color: var(--rvb-text-3);
  line-height: 1.55;
  margin: 0;
  font-weight: 400;
  max-width: 56ch;
}

/* ─── HERO IMAGE ─── */
.rv-article-image-wrap {
  position: relative;
  border-radius: 1.5rem;
  overflow: hidden;
  margin-bottom: 3rem;
  background: #0a0a0a;
  border: 1px solid var(--rvb-border);
  aspect-ratio: 16 / 9;
}
.rv-article-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ─── ARTICLE BODY (rich text) ─── */
.rv-article-body {
  margin-bottom: 4rem;
}

.rv-article-body .rich-text,
.rv-article-body .w-richtext {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--rvb-text-2);
  font-weight: 400;
}

.rv-article-body h1,
.rv-article-body h2,
.rv-article-body h3,
.rv-article-body h4,
.rv-article-body h5,
.rv-article-body h6 {
  color: var(--rvb-text);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin: 2.5rem 0 1rem;
}
.rv-article-body h1 { font-size: 2rem; }
.rv-article-body h2 { font-size: 1.625rem; }
.rv-article-body h3 { font-size: 1.375rem; }
.rv-article-body h4 { font-size: 1.125rem; }
.rv-article-body h5 { font-size: 1rem; }

.rv-article-body p {
  margin: 0 0 1.375rem;
}
.rv-article-body p:last-child { margin-bottom: 0; }

.rv-article-body a {
  color: var(--rvb-text);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
  padding-bottom: 1px;
  transition: border-color 0.2s;
}
.rv-article-body a:hover {
  border-color: var(--rvb-text);
}

.rv-article-body ul,
.rv-article-body ol {
  padding-left: 1.375rem;
  margin: 1rem 0 1.5rem;
}
.rv-article-body li {
  margin-bottom: 0.5rem;
}
.rv-article-body ul li::marker { color: rgba(255, 255, 255, 0.4); }

.rv-article-body blockquote {
  border-left: 2px solid;
  border-image: linear-gradient(180deg, #c9aaff, #839aff) 1;
  padding: 0.25rem 0 0.25rem 1.5rem;
  margin: 2rem 0;
  font-size: 1.25rem;
  color: var(--rvb-text);
  font-style: italic;
  line-height: 1.45;
}

.rv-article-body img {
  width: 100%;
  height: auto;
  border-radius: 1rem;
  margin: 2rem 0;
  border: 1px solid var(--rvb-border);
}

.rv-article-body code {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--rvb-border);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
  font-family: 'SFMono-Regular', Menlo, Monaco, monospace;
}
.rv-article-body pre {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--rvb-border);
  padding: 1.25rem;
  border-radius: 0.75rem;
  overflow-x: auto;
  margin: 1.5rem 0;
  font-size: 0.9em;
  line-height: 1.5;
}
.rv-article-body pre code {
  background: none;
  border: none;
  padding: 0;
}

.rv-article-body hr {
  border: none;
  border-top: 1px solid var(--rvb-border);
  margin: 3rem 0;
}

/* ─── CTA BANNER (Strategy Lab-style, matching pricing) ─── */
.rv-article-cta {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 2.75rem 3rem;
  border-radius: 2rem;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.08) 0%, rgba(28, 82, 255, 0.04) 50%, rgba(255, 255, 255, 0.02) 100%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  -webkit-backdrop-filter: blur(20px);
          backdrop-filter: blur(20px);
  overflow: hidden;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.12),
    0 20px 60px -20px rgba(28, 82, 255, 0.22);
}
.rv-article-cta::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -10%;
  width: 60%;
  height: 200%;
  background: radial-gradient(circle at 50% 50%, rgba(28, 82, 255, 0.12), transparent 60%);
  pointer-events: none;
}
.rv-article-cta::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -15%;
  width: 50%;
  height: 200%;
  background: radial-gradient(circle at 50% 50%, rgba(201, 170, 255, 0.07), transparent 60%);
  pointer-events: none;
}
.rv-article-cta-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1;
}
.rv-article-cta-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 100vw;
  background: rgba(255, 255, 255, 0.08);
  color: var(--rvb-text-2);
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  width: fit-content;
  border: 1px solid rgba(255, 255, 255, 0.12);
}
.rv-article-cta-title {
  font-size: clamp(1.375rem, 2.5vw, 1.625rem);
  font-weight: 500;
  letter-spacing: -0.025em;
  color: var(--rvb-text);
  margin: 0;
  line-height: 1.2;
}
.rv-article-cta-desc {
  font-size: 0.925rem;
  color: var(--rvb-text-3);
  line-height: 1.5;
  margin: 0;
  max-width: 30rem;
}
.rv-article-cta-btn {
  position: relative;
  z-index: 1;
  flex-shrink: 0;
}

/* ═══════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════ */

@media screen and (max-width: 1023px) {
  .rv-blog-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
  }
  .rv-blog-card-featured {
    grid-column: 1 / -1;
  }
  .rv-blog-card-featured .rv-blog-card-link {
    flex-direction: column;
  }
  .rv-blog-card-featured .rv-blog-card-image-wrap {
    aspect-ratio: 16 / 9;
    border-right: none;
    border-bottom: 1px solid var(--rvb-border);
    min-height: 0;
    flex: initial;
  }
  .rv-blog-card-featured .rv-blog-card-content {
    flex: initial;
    padding: 2rem 1.875rem;
  }
  .rv-blog-card-featured .rv-blog-card-title {
    font-size: 1.5rem;
  }
  .rv-article-cta {
    flex-direction: column;
    align-items: flex-start;
    padding: 2.25rem;
  }
  .rv-article-cta-btn,
  .rv-article-cta-btn .rv-cta {
    width: 100%;
    justify-content: center;
  }
}

@media screen and (max-width: 767px) {
  .rv-blog-section {
    padding: 4.5rem 1rem 4rem;
  }
  .rv-blog-header {
    margin-bottom: 3rem;
  }
  .rv-blog-section::before {
    top: -150px;
    width: 600px;
    height: 600px;
  }
  .rv-blog-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .rv-blog-card-featured {
    grid-column: span 1;
  }
  .rv-article-section {
    padding: 3.5rem 1rem 3rem;
  }
  .rv-article-back {
    margin-bottom: 1.75rem;
  }
  .rv-article-image-wrap {
    border-radius: 1rem;
  }
  .rv-article-cta {
    padding: 1.75rem;
    border-radius: 1.5rem;
  }
  .rv-article-body .rich-text,
  .rv-article-body .w-richtext {
    font-size: 1rem;
  }
  .rv-article-body h1 { font-size: 1.625rem; }
  .rv-article-body h2 { font-size: 1.375rem; }
  .rv-article-body h3 { font-size: 1.1875rem; }
}

@media screen and (max-width: 479px) {
  .rv-blog-card-content {
    padding: 1.5rem;
  }
  .rv-blog-title {
    font-size: 2rem;
  }
}