.concept-blog-hero {
  padding: 90px 0 50px;
  background: #d5c5b0;
}

.concept-blog-hero h1 {
  margin-top: 16px;
  font-size: clamp(40px, 6vw, 72px);
  line-height: 0.95;
}

.concept-blog-hero p {
  max-width: 520px;
  margin-top: 20px;
  color: #536368;
  font-size: 14px;
  line-height: 1.8;
}

.concept-blog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 32px;
}

.concept-blog-filter {
  border: 1px solid rgba(37, 59, 67, 0.2);
  border-radius: 999px;
  padding: 9px 18px;
  color: var(--concept-ink);
  text-decoration: none;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: background 200ms ease, color 200ms ease;
}

.concept-blog-filter:hover {
  background: rgba(37, 59, 67, 0.08);
}

.concept-blog-filter.is-active {
  background: var(--concept-ink);
  border-color: var(--concept-ink);
  color: #fff;
}

.concept-blog-section {
  padding: 70px 0 130px;
}

.concept-blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.concept-blog-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  color: var(--concept-ink);
  text-decoration: none;
  background: #fff;
  border-radius: var(--concept-radius-lg);
  box-shadow: 0 14px 30px rgba(37, 59, 67, 0.08);
  transition: transform 260ms var(--concept-ease), box-shadow 260ms var(--concept-ease);
}

.concept-blog-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 18px 36px rgba(37, 59, 67, 0.14);
}

.concept-blog-card-image {
  height: 200px;
  background-position: center;
  background-size: cover;
}

.concept-blog-card-body {
  padding: 22px;
}

.concept-blog-card-meta {
  color: #9b7750;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.concept-blog-card-title {
  margin-top: 10px;
  font-size: 20px;
  line-height: 1.15;
}

.concept-blog-card-excerpt {
  margin-top: 10px;
  color: #68757a;
  font-size: 12px;
  line-height: 1.6;
}

.concept-blog-detail-hero {
  padding: 90px 0 40px;
  background: #d5c5b0;
}

.concept-blog-detail-hero h1 {
  margin-top: 16px;
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.05;
}

.concept-blog-detail-meta {
  margin-top: 18px;
  color: #536368;
  font-size: 12px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.concept-blog-detail-cover {
  height: 420px;
  margin: 0 auto;
  background-position: center;
  background-size: cover;
  border-radius: var(--concept-radius-xl);
}

.concept-blog-detail-body {
  max-width: 720px;
  margin: 60px auto 130px;
  color: #253b43;
  font-size: 15px;
  line-height: 1.85;
}

.concept-blog-detail-body img {
  border-radius: var(--concept-radius-md);
}

.concept-blog-detail-body h2,
.concept-blog-detail-body h3 {
  margin-top: 40px;
  margin-bottom: 12px;
}

.concept-blog-detail-body p {
  margin-bottom: 18px;
}

.concept-not-found {
  padding: 160px 0 180px;
  text-align: center;
}

.concept-not-found h1 {
  font-size: clamp(36px, 5vw, 58px);
}

.concept-not-found p {
  max-width: 420px;
  margin: 18px auto 0;
  color: #536368;
  font-size: 14px;
  line-height: 1.8;
}

.concept-not-found .concept-button {
  margin-top: 28px;
}

@media (max-width: 900px) {
  .concept-blog-grid {
    grid-template-columns: 1fr;
  }

  .concept-blog-detail-cover {
    height: 280px;
  }
}