:root {
  --nav: #333;
  --accent: #0072ce;
  --title: #2344a3;
  --hero: #2f4da0;
  --cta: #3cab5a;
  --text: #232323;
  --muted: #6a6f77;
  --card: #f5f7fa;
  --border: #d7d7d7;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Open Sans", system-ui, sans-serif;
  color: var(--text);
  line-height: 1.65;
  background: #fff;
}

/* ---------- header ---------- */
.blog-head {
  background: var(--nav);
  border-bottom: 3px solid var(--accent);
  padding: 14px 20px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.blog-brand {
  font-family: Poppins, sans-serif;
  font-weight: 600;
  font-size: 1rem;
  color: #fff;
  text-decoration: none;
  letter-spacing: 0.02em;
}

.blog-brand span {
  color: #b8b8b8;
  font-weight: 500;
}

.blog-nav {
  display: flex;
  align-items: center;
  gap: 18px;
}

.blog-nav a {
  font-family: Poppins, sans-serif;
  font-size: 0.92rem;
  font-weight: 500;
  color: #e6e6e6;
  text-decoration: none;
}

.blog-nav a:hover {
  color: #fff;
}

.blog-nav-cta {
  background: var(--cta);
  color: #fff !important;
  padding: 8px 16px;
  border-radius: 4px;
}

.blog-nav-cta:hover {
  background: #2f9d52;
}

/* ---------- layout ---------- */
.blog-wrap {
  max-width: 880px;
  margin: 0 auto;
  padding: 36px 20px 56px;
}

.blog-list-head {
  text-align: center;
  margin-bottom: 32px;
}

.blog-list-head h1 {
  font-family: Poppins, sans-serif;
  font-size: clamp(1.8rem, 6vw, 2.4rem);
  font-weight: 600;
  color: var(--hero);
  margin: 0 0 8px;
}

.blog-list-sub {
  color: var(--muted);
  margin: 0;
  font-size: 1.05rem;
}

/* ---------- list / cards ---------- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 26px;
}

.blog-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 4px 22px rgba(0, 0, 0, 0.05);
  display: flex;
  flex-direction: column;
  transition: transform 0.15s, box-shadow 0.2s;
}

.blog-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(35, 68, 163, 0.12);
}

.blog-card-media {
  display: block;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--card);
}

.blog-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.blog-card-body {
  padding: 18px 20px 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.blog-card-date {
  font-size: 0.82rem;
  color: var(--muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 0 0 8px;
}

.blog-card-title {
  font-family: Poppins, sans-serif;
  font-size: 1.2rem;
  line-height: 1.3;
  margin: 0 0 10px;
}

.blog-card-title a {
  color: var(--title);
  text-decoration: none;
}

.blog-card-title a:hover {
  color: var(--accent);
}

.blog-card-excerpt {
  color: #444;
  font-size: 0.97rem;
  margin: 0 0 16px;
}

.blog-card-more {
  margin-top: auto;
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
  font-size: 0.95rem;
}

.blog-card-more:hover {
  text-decoration: underline;
}

.blog-empty {
  text-align: center;
  color: var(--muted);
  font-size: 1.1rem;
  padding: 40px 0;
}

/* ---------- single article ---------- */
.blog-article-meta {
  font-size: 0.9rem;
  color: var(--muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 0 0 12px;
}

.blog-article-title {
  font-family: Poppins, sans-serif;
  font-size: clamp(1.7rem, 5vw, 2.3rem);
  font-weight: 600;
  color: var(--hero);
  line-height: 1.25;
  margin: 0 0 22px;
}

.blog-cover {
  margin: 0 0 28px;
  border-radius: 12px;
  overflow: hidden;
}

.blog-cover img {
  width: 100%;
  height: auto;
  display: block;
}

.blog-article-body {
  font-size: 1.08rem;
  line-height: 1.8;
  color: #1a1a1a;
}

.blog-article-body h2 {
  font-family: Poppins, sans-serif;
  font-size: 1.5rem;
  color: var(--title);
  margin: 2rem 0 0.8rem;
}

.blog-article-body h3 {
  font-family: Poppins, sans-serif;
  font-size: 1.22rem;
  color: var(--title);
  margin: 1.6rem 0 0.6rem;
}

.blog-article-body p {
  margin: 0 0 1.1rem;
}

.blog-article-body a {
  color: var(--accent);
  font-weight: 600;
}

.blog-article-body ul,
.blog-article-body ol {
  margin: 0 0 1.2rem 1.3rem;
  padding: 0;
}

.blog-article-body li {
  margin: 0 0 0.5rem;
}

.blog-article-body blockquote {
  margin: 1.4rem 0;
  padding: 12px 18px;
  background: #f0f4fa;
  border-left: 4px solid var(--accent);
  border-radius: 6px;
  color: #2a2a2a;
  font-style: italic;
}

.blog-figure,
.blog-embed {
  margin: 1.6rem 0;
}

.blog-figure img {
  width: 100%;
  height: auto;
  border-radius: 10px;
  display: block;
}

.blog-embed {
  max-width: 100%;
}

.blog-embed iframe,
.blog-embed video,
.blog-embed img {
  max-width: 100%;
}

.blog-back {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
}

.blog-back:hover {
  text-decoration: underline;
}

.blog-back-wrap {
  margin-top: 36px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

/* ---------- footer ---------- */
.blog-foot {
  background: #f5f5f5;
  border-top: 1px solid var(--border);
  padding: 32px 20px;
  text-align: center;
  font-size: 0.92rem;
  color: var(--muted);
  line-height: 1.6;
}

.blog-foot-brand {
  font-family: Poppins, sans-serif;
  font-weight: 600;
  color: var(--title);
  font-size: 1.05rem;
  margin: 0 0 8px;
}

.blog-foot a {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
}

.blog-foot a:hover {
  text-decoration: underline;
}

.blog-lead-wrap {
  padding-top: 0;
  margin-bottom: 8px;
}

@media (max-width: 600px) {
  .blog-head {
    justify-content: center;
    text-align: center;
  }
  .blog-nav {
    gap: 12px;
  }
}