:root {
  font-family: "Space Grotesk", "Inter", "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  color-scheme: dark;
  --bg: #05060d;
  --card: #11132a;
  --card-alt: #131533;
  --text: #f4f6ff;
  --muted: #c0c5ff;
  --accent: #9b7bff;
  --accent-strong: #ff7ac3;
  --border: rgba(255, 255, 255, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: radial-gradient(circle at top, #0b0c23, var(--bg));
  color: var(--text);
  font-family: "Space Grotesk", "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  line-height: 1.6;
}

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

a:hover {
  color: var(--accent-strong);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.wrapper {
  width: min(1200px, 90vw);
  margin: 0 auto;
  padding: 2.5rem 0 4rem;
}

header {
  padding: 1.5rem 0;
  position: sticky;
  top: 0;
  background: rgba(5, 6, 13, 0.85);
  backdrop-filter: blur(12px);
  z-index: 5;
}

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1200px, 90vw);
  margin: 0 auto;
}

.brand {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

nav ul {
  display: flex;
  gap: 1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

nav li a {
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: border 0.2s ease, color 0.2s ease;
}

nav li a:hover,
nav li a:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
}

.hero {
  background: linear-gradient(135deg, rgba(255, 139, 96, 0.18), rgba(144, 92, 241, 0.25));
  border: 1px solid var(--border);
  border-radius: 32px;
  padding: clamp(2rem, 6vw, 4rem);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
  align-items: center;
  margin-top: 2rem;
}

.hero h1 {
  font-size: clamp(2.4rem, 4.4vw, 4.2rem);
  line-height: 1.1;
  margin: 0 0 1rem;
}

.hero p {
  font-size: 1.2rem;
  color: var(--muted);
}

.hero .cta {
  margin-top: 1.5rem;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--accent);
  color: #05060d;
  padding: 0.9rem 1.5rem;
  border-radius: 999px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero .cta:hover {
  background: var(--accent-strong);
}

.section-title {
  margin: 4rem 0 2rem;
  font-size: 1.2rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.article-card {
  background: var(--card);
  border-radius: 24px;
  padding: 1.25rem;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: transform 0.25s ease, border 0.25s;
}

.article-card:hover {
  transform: translateY(-6px);
  border-color: rgba(255, 255, 255, 0.2);
}

.article-card h3 {
  margin: 0;
}

.article-card p {
  color: var(--muted);
  margin: 0;
}

.tag {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}

footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0 3rem;
  text-align: center;
  color: var(--muted);
}

/* Article page */

.article-page .wrapper {
  padding-top: 1.5rem;
}

.breadcrumb {
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 2rem;
}

.breadcrumb a {
  color: var(--accent);
}

.article-hero {
  background: var(--card-alt);
  border-radius: 32px;
  border: 1px solid var(--border);
  padding: clamp(1.5rem, 4vw, 3rem);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
  align-items: center;
}

.article-hero h1 {
  font-size: clamp(2rem, 4vw, 3.4rem);
  margin: 0 0 1rem;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.article-body {
  margin-top: 2.5rem;
  background: rgba(255, 255, 255, 0.02);
  border-radius: 24px;
  border: 1px solid var(--border);
  padding: clamp(1.5rem, 4vw, 3rem);
}

.article-body h2 {
  margin-top: 2rem;
  font-size: 1.5rem;
}

.article-body p {
  color: #e1e4ff;
}

.article-body ul {
  margin-left: 1.5rem;
}

.back-link {
  margin-top: 2rem;
  display: inline-flex;
  gap: 0.5rem;
  align-items: center;
  color: var(--accent);
}

.featured-image {
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

@media (max-width: 600px) {
  nav ul {
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .article-meta {
    flex-direction: column;
    align-items: flex-start;
  }
}