/* Blog index — listing layout on site-v2 tokens
   GT Planar · electric blue #1c17ff · hairlines · sharp radii */

/* -------------------- Hero -------------------- */
.blog-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--nav-h) + 72px) 0 48px;
  text-align: left;
  background:
    radial-gradient(70% 55% at 12% -10%, rgba(28, 23, 255, 0.12), transparent 62%),
    radial-gradient(45% 40% at 96% 20%, rgba(28, 23, 255, 0.06), transparent 58%),
    linear-gradient(180deg, #f7f8ff 0%, var(--canvas) 72%);
  border-bottom: 1px solid var(--hairline-soft);
}
.blog-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.4;
  background-image:
    linear-gradient(rgba(28, 23, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(28, 23, 255, 0.06) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55), transparent 88%);
}
.blog-hero > .container {
  position: relative;
  z-index: 1;
  max-width: 920px;
}
.blog-hero .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: var(--s-md);
  color: var(--primary-active);
  font-weight: 600;
}
.blog-hero-title {
  font-family: var(--font);
  font-size: clamp(2.6rem, 5.5vw, 4.25rem);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.035em;
  color: var(--ink);
  max-width: 14ch;
}
.blog-hero-title .brand-mark {
  color: var(--primary);
}
.blog-hero-lede {
  margin-top: var(--s-lg);
  max-width: 42ch;
  font-size: clamp(1.05rem, 1.5vw, 1.2rem);
  line-height: 1.6;
  color: var(--body);
}

/* -------------------- Listing -------------------- */
.blog-list {
  padding-block: var(--s-xxl) var(--s-section);
  background: var(--canvas);
}
.blog-list > .container {
  display: flex;
  flex-direction: column;
  gap: var(--s-xxl);
}

/* Featured post — visual anchor */
.blog-featured {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  min-height: clamp(320px, 42vw, 420px);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--canvas);
  text-decoration: none;
  color: inherit;
  transition:
    border-color var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease),
    transform var(--dur) var(--ease);
}
.blog-featured:hover {
  border-color: rgba(28, 23, 255, 0.35);
  box-shadow: 0 16px 40px rgba(28, 23, 255, 0.1);
  transform: translateY(-3px);
}
.blog-featured:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}

.blog-featured-visual {
  position: relative;
  min-height: 100%;
  overflow: hidden;
  background:
    linear-gradient(145deg, #1412cc 0%, #1c17ff 42%, #4a8cff 100%);
}
.blog-featured-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 22% 28%, rgba(255, 255, 255, 0.28), transparent 34%),
    radial-gradient(circle at 78% 72%, rgba(255, 255, 255, 0.12), transparent 40%),
    repeating-linear-gradient(
      -28deg,
      transparent 0 18px,
      rgba(255, 255, 255, 0.08) 18px 19px
    );
}
.blog-featured-visual::after {
  content: "";
  position: absolute;
  width: 58%;
  aspect-ratio: 1;
  right: -12%;
  bottom: -18%;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 50%;
  box-shadow: inset 0 0 0 40px rgba(255, 255, 255, 0.04);
}
.blog-featured-visual[data-tone="compare"] {
  background: linear-gradient(150deg, #0f12b8 0%, #1c17ff 48%, #6eb6ff 100%);
}
.blog-featured-kicker {
  position: absolute;
  z-index: 1;
  top: 20px;
  left: 20px;
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: var(--r-xs);
  background: rgba(0, 0, 0, 0.18);
  color: #fff;
  font-size: var(--t-caption-sm);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.blog-featured-body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--s-md);
  padding: clamp(28px, 4vw, 48px);
}
.blog-featured-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
  font-size: var(--t-caption-sm);
  color: var(--muted);
  font-weight: 500;
}
.blog-featured-meta time { font-weight: 600; color: var(--muted); }
.blog-featured-body h2 {
  font-size: clamp(1.55rem, 2.6vw, 2.15rem);
  font-weight: 500;
  line-height: 1.18;
  letter-spacing: -0.03em;
  color: var(--ink);
  max-width: 22ch;
  transition: color var(--dur-fast) var(--ease);
}
.blog-featured:hover .blog-featured-body h2 { color: var(--primary); }
.blog-featured-body > p {
  margin: 0;
  max-width: 40ch;
  font-size: var(--t-body);
  line-height: 1.65;
  color: var(--body);
}
.blog-featured-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: var(--s-sm);
  align-self: flex-start;
  padding: 10px 16px;
  border-radius: var(--r-sm);
  background: var(--primary);
  color: #fff;
  font-size: var(--t-caption);
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: background var(--dur-fast) var(--ease), gap var(--dur-fast) var(--ease);
}
.blog-featured:hover .blog-featured-cta {
  background: var(--primary-hover);
  gap: 12px;
}

/* Rest of posts — card grid */
.blog-grid-label {
  margin: 0 0 var(--s-lg);
  font-size: var(--t-caption);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--s-lg);
}
.blog-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  overflow: hidden;
  border: 1px solid var(--hairline);
  border-radius: var(--r-md);
  background: var(--canvas);
  text-decoration: none;
  color: inherit;
  transition:
    border-color var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease),
    transform var(--dur) var(--ease);
}
.blog-card:hover {
  border-color: rgba(28, 23, 255, 0.3);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.blog-card:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.blog-card-visual {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  flex-shrink: 0;
  background: linear-gradient(145deg, #1c17ff 0%, #5aa7ff 100%);
}
.blog-card-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.22), transparent 42%),
    repeating-linear-gradient(
      135deg,
      transparent 0 14px,
      rgba(255, 255, 255, 0.08) 14px 15px
    );
}
.blog-card-visual::after {
  content: "";
  position: absolute;
  width: 46%;
  aspect-ratio: 1;
  right: -8%;
  bottom: -20%;
  border: 1px solid rgba(255, 255, 255, 0.25);
  transform: rotate(18deg);
}
.blog-card-visual[data-tone="seo"] {
  background: linear-gradient(145deg, #1520d8 0%, #3d7cff 55%, #9fd0ff 100%);
}
.blog-card-visual[data-tone="ops"] {
  background: linear-gradient(160deg, #1014b0 0%, #1c17ff 50%, #2f9cff 100%);
}
.blog-card-visual[data-tone="guide"] {
  background: linear-gradient(135deg, #1c17ff 0%, #2456ff 45%, #74b8ff 100%);
}

.blog-card-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: var(--s-sm);
  padding: var(--s-lg);
}
.blog-card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 8px;
  font-size: var(--t-caption-sm);
  color: var(--muted);
  font-weight: 500;
}
.blog-card-meta time { font-weight: 600; }
.blog-chip {
  display: inline-flex;
  align-items: center;
  margin-left: auto;
  padding: 3px 8px;
  border: 1px solid rgba(28, 23, 255, 0.18);
  border-radius: var(--r-xs);
  background: var(--primary-soft);
  color: var(--primary-active);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 1.3;
}
.blog-card-body h3 {
  font-size: 1.15rem;
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--ink);
  transition: color var(--dur-fast) var(--ease);
}
.blog-card:hover .blog-card-body h3 { color: var(--primary); }
.blog-card-body > p {
  margin: 0;
  flex: 1;
  font-size: var(--t-body-sm);
  line-height: 1.6;
  color: var(--body);
}
.blog-card-more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: var(--s-sm);
  font-size: var(--t-caption);
  font-weight: 600;
  color: var(--primary);
  letter-spacing: 0.01em;
}
.blog-card:hover .blog-card-more { gap: 8px; }

/* -------------------- CTA -------------------- */
.blog-cta {
  padding-block: 0 var(--s-section);
  background: var(--canvas);
}
.blog-cta .cta-box {
  background:
    radial-gradient(80% 120% at 10% 0%, rgba(255, 255, 255, 0.16), transparent 55%),
    var(--primary);
  color: #fff;
  border-radius: var(--r-lg);
  padding: clamp(40px, 6vw, 64px) clamp(28px, 5vw, 56px);
  text-align: center;
  box-shadow: 0 18px 48px rgba(28, 23, 255, 0.22);
}
.blog-cta .cta-box h2 {
  font-size: clamp(1.75rem, 3vw, 2.35rem);
  font-weight: 400;
  letter-spacing: -0.025em;
  color: #fff;
}
.blog-cta .cta-box p {
  margin: var(--s-md) auto 0;
  max-width: 40ch;
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.05rem;
  line-height: 1.55;
}
.blog-cta .cta-btns {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-md);
  justify-content: center;
  margin-top: var(--s-xl);
}
.blog-cta .btn-primary {
  background: #fff;
  color: var(--primary);
  border-color: #fff;
  min-height: 48px;
  padding-inline: 22px;
  font-weight: 600;
}
.blog-cta .btn-primary:hover {
  background: var(--surface-soft);
  color: var(--primary-active);
}

/* -------------------- Responsive -------------------- */
@media (max-width: 1128px) {
  .blog-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .blog-featured { grid-template-columns: 1fr 1.05fr; }
}
@media (max-width: 744px) {
  .blog-hero {
    padding: calc(var(--nav-h) + 56px) 0 40px;
  }
  .blog-hero-title { max-width: none; }
  .blog-list { padding-block: var(--s-xl) var(--s-xxl); }
  .blog-list > .container { gap: var(--s-xl); }
  .blog-featured {
    grid-template-columns: 1fr;
    min-height: 0;
  }
  .blog-featured-visual {
    aspect-ratio: 16 / 10;
    min-height: 180px;
  }
  .blog-featured-body h2 { max-width: none; }
  .blog-grid {
    grid-template-columns: 1fr;
    gap: var(--s-base);
  }
  .blog-chip { margin-left: 0; }
  .blog-cta { padding-bottom: var(--s-xxl); }
}