:root {
  --bg: #0b1020;
  --bg-soft: #131a2e;
  --card: #18213a;
  --card-hover: #1d2847;
  --text: #f3f6ff;
  --muted: #a9b4d0;
  --accent: #6ee7ff;
  --accent-2: #8b5cf6;
  --border: rgba(255,255,255,0.08);
  --shadow: 0 12px 30px rgba(0, 0, 0, 0.28);
  --radius: 18px;
  --max: 1100px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(110,231,255,0.12), transparent 28%),
    radial-gradient(circle at top right, rgba(139,92,246,0.14), transparent 25%),
    linear-gradient(180deg, #0a0f1d 0%, #0b1020 100%);
  color: var(--text);
  line-height: 1.6;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(var(--max), calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(11, 16, 32, 0.72);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.brand {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.3px;
  color: var(--text);
}

.brand span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--muted);
  font-size: 0.95rem;
}

.hero {
  padding: 5rem 0 3rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1.5rem;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1.3px;
  color: var(--accent);
  margin-bottom: 1rem;
  font-weight: 700;
}

.hero h1 {
  font-size: clamp(2.4rem, 5vw, 4.2rem);
  line-height: 1.05;
  margin: 0 0 1rem;
}

.hero p {
  color: var(--muted);
  font-size: 1.1rem;
  max-width: 700px;
  margin: 0 0 1.5rem;
}

.hero-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem;
  box-shadow: var(--shadow);
}

.hero-card h3 {
  margin-top: 0;
  margin-bottom: 0.8rem;
  font-size: 1.05rem;
}

.hero-card ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--muted);
}

.button-row {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.button {
  display: inline-block;
  padding: 0.9rem 1.15rem;
  border-radius: 12px;
  font-weight: 700;
  transition: 0.2s ease;
  text-decoration: none;
}

.button-primary {
  background: linear-gradient(90deg, var(--accent), #7dd3fc);
  color: #08111f;
}

.button-primary:hover {
  transform: translateY(-1px);
  text-decoration: none;
}

.button-secondary {
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
  color: var(--text);
}

.button-secondary:hover {
  background: rgba(255,255,255,0.06);
  text-decoration: none;
}

.section {
  padding: 1.5rem 0 3rem;
}

.section h2 {
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
}

.section-intro {
  color: var(--muted);
  margin-bottom: 1.5rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
}

.card {
  display: block;
  background: linear-gradient(180deg, rgba(255,255,255,0.035), rgba(255,255,255,0.02));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem;
  box-shadow: var(--shadow);
  transition: 0.2s ease;
  color: var(--text);
  text-decoration: none;
}

.card:hover {
  transform: translateY(-4px);
  background: var(--card-hover);
  text-decoration: none;
}

.card .tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--accent);
  margin-bottom: 0.7rem;
}

.card h3 {
  margin: 0 0 0.65rem;
  font-size: 1.15rem;
  line-height: 1.3;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.97rem;
}

.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 3rem;
}

.site-footer .container {
  padding: 1.25rem 0 2rem;
  color: var(--muted);
  font-size: 0.92rem;
}

/* Article pages */
.article-hero {
  padding: 3.5rem 0 1.5rem;
}

.article-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 1.5rem;
  align-items: start;
}

.article-main,
.article-side {
  background: linear-gradient(180deg, rgba(255,255,255,0.035), rgba(255,255,255,0.02));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.article-main {
  padding: 1.5rem;
}

.article-side {
  padding: 1.15rem;
  position: sticky;
  top: 90px;
}

.article-main h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.1;
  margin-top: 0;
  margin-bottom: 0.7rem;
}

.meta {
  color: var(--muted);
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
}

.intro {
  color: var(--muted);
  font-size: 1.05rem;
  margin-bottom: 1.5rem;
}

.pick {
  padding: 1.1rem 0;
  border-top: 1px solid var(--border);
}

.pick:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.pick h2 {
  font-size: 1.35rem;
  margin: 0 0 0.45rem;
}

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

.side-title {
  margin-top: 0;
  margin-bottom: 0.8rem;
  font-size: 1rem;
}

.side-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.side-list li + li {
  margin-top: 0.7rem;
  padding-top: 0.7rem;
  border-top: 1px solid var(--border);
}

.side-list a {
  color: var(--text);
}

@media (max-width: 900px) {
  .hero-grid,
  .article-wrap,
  .grid {
    grid-template-columns: 1fr;
  }

  .article-side {
    position: static;
  }

  .hero {
    padding-top: 3.5rem;
  }
}

@media (max-width: 640px) {
  .nav {
    gap: 1rem;
    align-items: flex-start;
    flex-direction: column;
  }

  .hero h1 {
    font-size: 2.3rem;
  }

  .button-row {
    flex-direction: column;
    align-items: stretch;
  }

  .button {
    text-align: center;
  }
}