/* ===== Blog Insights Styles - Dark Space Theme ===== */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600;700;800;900&display=swap');

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-void: #0a0e1a;
  --bg-deep: #101828;
  --bg-surface: #1a2340;
  --bg-card: rgba(255, 255, 255, 0.07);
  --border-subtle: rgba(255, 255, 255, 0.12);
  --border-light: rgba(255, 255, 255, 0.20);
  --cyan: #22d3ee;
  --indigo: #818cf8;
  --violet: #a78bfa;
  --blue: #60a5fa;
  --emerald: #34d399;
  --pink: #f472b6;
  --gradient-main: linear-gradient(135deg, var(--cyan), var(--indigo), var(--violet));
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-white: #ffffff;
  --radius: 12px;
  --shadow-card: 0 4px 30px rgba(0, 0, 0, 0.4);
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text-primary);
  line-height: 1.7;
  background: var(--bg-void);
}

a { text-decoration: none; color: inherit; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 820px; margin: 0 auto; padding: 0 24px; }

/* ===== Header ===== */
.ins-header {
  background: rgba(10, 14, 26, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid var(--border-subtle);
}

.ins-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.ins-header .logo { display: flex; align-items: center; }
.ins-header .logo-img { height: 36px; width: auto; }

.ins-header nav { display: flex; gap: 28px; align-items: center; }

.ins-header nav a {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition);
  position: relative;
}

.ins-header nav a:hover { color: var(--cyan); }

.ins-header nav a.active {
  color: var(--cyan);
}

.ins-header nav a.active::after {
  content: "";
  position: absolute;
  bottom: -23px;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-main);
  border-radius: 3px 3px 0 0;
}

/* ===== Blog Hero ===== */
.ins-hero {
  background: var(--bg-void);
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.ins-hero::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.12) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.ins-hero::after {
  content: "";
  position: absolute;
  top: -40%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(129, 140, 248, 0.12) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.ins-hero h1 {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--text-white);
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}

.ins-hero p {
  color: var(--text-muted);
  font-size: 1.15rem;
  max-width: 580px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

/* ===== Blog Cards Grid ===== */
.ins-listing {
  padding: 80px 0;
  background: var(--bg-void);
}

.ins-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.ins-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.ins-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 32px rgba(129, 140, 248, 0.15);
  border-color: var(--border-light);
}

.ins-card-banner {
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.ins-card-banner .banner-icon {
  font-size: 3.5rem;
  position: relative;
  z-index: 1;
}

.ins-card-banner .banner-labels {
  display: flex;
  gap: 8px;
  position: relative;
  z-index: 1;
}

.ins-card-banner .blabel {
  background: rgba(255, 255, 255, 0.12);
  color: var(--text-white);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 4px;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.ins-card-body {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.ins-card-tag {
  display: inline-block;
  width: fit-content;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}

.tag-usecase { background: rgba(52, 211, 153, 0.15); color: var(--emerald); }
.tag-guide { background: rgba(96, 165, 250, 0.15); color: var(--blue); }
.tag-insight { background: rgba(244, 114, 182, 0.15); color: var(--pink); }

.ins-card-body h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.4;
  color: var(--text-primary);
}

.ins-card-body p {
  color: var(--text-muted);
  font-size: 0.92rem;
  flex: 1;
  margin-bottom: 16px;
}

.ins-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
}

.ins-card-meta .date { color: var(--text-muted); font-size: 0.82rem; }

.ins-card-meta .read-link {
  color: var(--cyan);
  font-weight: 600;
  font-size: 0.88rem;
  transition: var(--transition);
}

.ins-card:hover .read-link { color: var(--indigo); }

/* ===== Featured Card ===== */
.ins-featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 2px solid rgba(129, 140, 248, 0.25);
}

.ins-featured .ins-card-banner {
  height: auto;
  min-height: 300px;
}

.ins-featured .ins-card-body {
  padding: 36px;
  justify-content: center;
}

.ins-featured h3 { font-size: 1.5rem; }

.featured-badge {
  display: inline-block;
  background: linear-gradient(135deg, var(--cyan), var(--indigo));
  color: var(--text-white);
  font-size: 0.65rem;
  font-weight: 800;
  padding: 3px 10px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
}

/* ===== Article Page ===== */
.article-hero {
  padding: 60px 0 40px;
  border-bottom: 1px solid var(--border-subtle);
}

.article-hero .tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.article-hero h1 {
  font-size: 2.4rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
  max-width: 720px;
  color: var(--text-primary);
}

.article-hero .meta { color: var(--text-muted); font-size: 0.92rem; }

.ins-article { padding: 48px 0 100px; }

.ins-article h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 40px 0 14px;
  color: var(--text-primary);
}

.ins-article h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 28px 0 10px;
  color: var(--text-secondary);
}

.ins-article p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 16px;
}

.ins-article ul, .ins-article ol {
  margin: 0 0 18px 24px;
  color: var(--text-secondary);
  font-size: 1.05rem;
}

.ins-article ul li, .ins-article ol li { margin-bottom: 8px; }

.ins-article blockquote {
  border-left: 4px solid var(--cyan);
  padding: 20px 28px;
  margin: 28px 0;
  background: var(--bg-deep);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-style: italic;
  color: var(--text-muted);
  font-size: 1.1rem;
}

.ins-article code {
  background: var(--bg-surface);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.92rem;
  color: var(--cyan);
}

.ins-article pre {
  background: var(--bg-deep);
  color: var(--text-secondary);
  padding: 24px;
  border-radius: var(--radius);
  margin: 20px 0;
  overflow-x: auto;
  font-size: 0.9rem;
  line-height: 1.6;
  border: 1px solid var(--border-subtle);
}

.ins-article pre code {
  background: none;
  color: inherit;
  padding: 0;
}

.step-box {
  background: var(--bg-deep);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  padding: 24px;
  margin: 20px 0;
}

.step-box .step-num {
  display: inline-block;
  background: linear-gradient(135deg, var(--cyan), var(--indigo));
  color: var(--text-white);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  text-align: center;
  line-height: 28px;
  font-size: 0.85rem;
  font-weight: 700;
  margin-right: 10px;
}

.step-box h4 {
  display: inline;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
}

.step-box p {
  margin-top: 10px;
  color: var(--text-muted);
  font-size: 0.98rem;
}

.arch-diagram {
  background: var(--bg-deep);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  padding: 32px;
  margin: 28px 0;
  text-align: center;
}

.arch-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.arch-node {
  background: var(--bg-card);
  border: 2px solid var(--border-light);
  border-radius: var(--radius);
  padding: 14px 20px;
  text-align: center;
  min-width: 120px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.arch-node .node-icon { font-size: 1.6rem; margin-bottom: 4px; }

.arch-node .node-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-primary);
}

.arch-arrow {
  font-size: 1.4rem;
  color: var(--cyan);
  font-weight: 700;
}

.article-cta {
  background: var(--bg-deep);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  padding: 44px;
  text-align: center;
  margin-top: 48px;
  position: relative;
  overflow: hidden;
}

.article-cta::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.article-cta::after {
  content: "";
  position: absolute;
  bottom: -40%;
  right: -10%;
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(129, 140, 248, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.article-cta h3 {
  color: var(--text-white);
  font-size: 1.4rem;
  margin-bottom: 8px;
  position: relative;
  z-index: 1;
}

.article-cta p {
  color: var(--text-muted);
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
}

.btn-cta {
  display: inline-block;
  padding: 14px 32px;
  background: linear-gradient(135deg, var(--cyan), var(--indigo));
  color: var(--text-white);
  font-weight: 700;
  font-size: 1rem;
  border-radius: var(--radius);
  transition: var(--transition);
  position: relative;
  z-index: 1;
}

.btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(34, 211, 238, 0.3);
}

/* ===== Footer ===== */
.ins-footer {
  background: var(--bg-void);
  color: var(--text-muted);
  padding: 24px 0;
  text-align: center;
  font-size: 0.9rem;
  border-top: 1px solid var(--border-subtle);
}

/* ===== Footer Legal ===== */
.ins-footer-legal {
  padding: 32px 0 24px;
  border-top: 1px solid var(--border-subtle);
}

.ins-footer-legal .legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: center;
  margin-bottom: 20px;
}

.ins-footer-legal .legal-links a {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
}

.ins-footer-legal .legal-links a:hover {
  color: var(--cyan);
}

.ins-footer-legal .legal-text {
  max-width: 800px;
  margin: 0 auto;
}

.ins-footer-legal .legal-text p {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 12px;
  text-align: center;
}

.ins-footer-legal .legal-text p:last-child {
  margin-bottom: 0;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .ins-grid { grid-template-columns: 1fr; }
  .ins-featured { grid-template-columns: 1fr; }
  .ins-featured .ins-card-banner { min-height: 200px; }
  .ins-hero h1 { font-size: 2rem; }
  .article-hero h1 { font-size: 1.8rem; }
  .arch-flow { flex-direction: column; }
  .arch-arrow { transform: rotate(90deg); }
  .ins-header nav { gap: 14px; }
  .ins-header nav a { font-size: 0.85rem; }
}