:root {
  color-scheme: dark;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --bg: #040616;
  --bg-alt: rgba(8, 15, 35, 0.78);
  --card: rgba(14, 23, 42, 0.72);
  --border: rgba(148, 163, 184, 0.18);
  --border-strong: rgba(139, 92, 246, 0.5);
  --text-primary: #f8fafc;
  --text-secondary: rgba(226, 232, 240, 0.75);
  --accent: #8b5cf6;
  --accent-soft: rgba(139, 92, 246, 0.18);
  --link: #60a5fa;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text-primary);
}

body {
  line-height: 1.7;
  position: relative;
}

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

a:hover {
  text-decoration: underline;
}

.background-glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 20% 30%, rgba(96, 165, 250, 0.16), transparent 48%),
    radial-gradient(circle at 80% 20%, rgba(168, 85, 247, 0.18), transparent 50%),
    radial-gradient(circle at 50% 80%, rgba(14, 165, 233, 0.12), transparent 55%);
  opacity: 0.8;
  z-index: 0;
}

.app-shell {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  margin: 0 auto;
  padding: 48px 24px 88px;
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  font-size: 1.5rem;
  color: var(--text-primary);
  letter-spacing: 0.02em;
}

.brand span {
  font-size: 2rem;
}

.main-nav {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 18px;
}

.main-nav a {
  color: var(--text-secondary);
  font-weight: 500;
  letter-spacing: 0.02em;
  text-decoration: none;
}

.main-nav a:hover {
  color: var(--text-primary);
}

.hero {
  display: grid;
  gap: 18px;
  padding: 36px 32px;
  border-radius: 28px;
  border: 1px solid var(--border);
  background:
    linear-gradient(135deg, rgba(88, 28, 135, 0.32), rgba(14, 165, 233, 0.12))
    rgba(15, 23, 42, 0.72);
  box-shadow: 0 45px 80px -30px rgba(15, 23, 42, 0.7);
}

.hero--compact {
  padding: 28px 26px;
  gap: 16px;
}

.hero__eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.38em;
  font-size: 0.75rem;
  color: rgba(196, 181, 253, 0.85);
}

.hero h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.12;
}

.hero p {
  margin: 0;
  color: var(--text-secondary);
  max-width: 70ch;
}

.progress-track {
  width: 100%;
  height: 10px;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.25);
  overflow: hidden;
}

.progress-value {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(135deg, #22d3ee, #a855f7);
}

.progress-meta {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  color: rgba(226, 232, 240, 0.7);
  font-size: 0.85rem;
}

.cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary {
  background: var(--accent);
  color: #090422;
  box-shadow: 0 18px 45px rgba(139, 92, 246, 0.38);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 22px 58px rgba(139, 92, 246, 0.48);
}

.btn-ghost {
  border: 1px solid var(--accent-soft);
  color: var(--text-primary);
  background: rgba(139, 92, 246, 0.08);
}

.btn-ghost:hover {
  background: rgba(139, 92, 246, 0.16);
}

.section-title {
  font-size: 1.75rem;
  margin: 0 0 8px;
}

.section-subtitle {
  margin: 0 0 24px;
  color: var(--text-secondary);
  max-width: 65ch;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: #d8b4fe;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.panel-grid,
.card-grid,
.resource-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.panel,
.card,
.resource-card {
  padding: 26px;
  border-radius: 24px;
  border: 1px solid var(--border);
  background: var(--card);
  display: grid;
  gap: 14px;
}

.panel ul,
.card ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.panel li,
.card li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.post-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 16px;
}

.post-row {
  display: grid;
  grid-template-columns: 140px auto 110px;
  gap: 24px;
  padding: 22px 28px;
  border-radius: 26px;
  border: 1px solid var(--border);
  background: rgba(14, 23, 42, 0.78);
  align-items: center;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.post-row:hover {
  transform: translateY(-2px);
  border-color: var(--border-strong);
}

.post-row__date {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.post-row__body {
  display: grid;
  gap: 12px;
}

.post-row__body h3 {
  margin: 0;
  font-size: 1.15rem;
}

.post-row__body p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.post-row__cta {
  text-align: right;
  font-weight: 600;
}

.resource-card ul {
  list-style: disc;
  margin-left: 18px;
  color: var(--text-secondary);
}

.resource-card footer {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.article {
  display: grid;
  gap: 24px;
  padding: 32px;
  border-radius: 30px;
  border: 1px solid var(--border);
  background: rgba(14, 23, 42, 0.78);
  box-shadow: 0 50px 90px -38px rgba(15, 23, 42, 0.75);
}

.article header {
  display: grid;
  gap: 16px;
}

.article header h1 {
  margin: 0;
  font-size: clamp(2.1rem, 4.5vw, 3.1rem);
}

.meta-line {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  color: rgba(226, 232, 240, 0.7);
  font-size: 0.9rem;
}

.article-body {
  display: grid;
  gap: 18px;
  font-size: 1.04rem;
  color: rgba(226, 232, 240, 0.85);
}

.article-body h2 {
  font-size: clamp(1.7rem, 3.5vw, 2.2rem);
  margin: 12px 0 0;
}

.article-body pre {
  background: rgba(2, 6, 23, 0.85);
  padding: 18px;
  border-radius: 18px;
  overflow: auto;
  border: 1px solid rgba(148, 163, 184, 0.24);
}

.article-body code {
  font-family: "JetBrains Mono", "Fira Code", monospace;
  font-size: 0.95rem;
}

.back-link {
  color: var(--link);
  display: inline-flex;
  gap: 8px;
  align-items: center;
  font-weight: 600;
}

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

.site-footer {
  margin: 0 auto;
  max-width: 1100px;
  padding: 0 24px 48px;
  font-size: 0.9rem;
  color: rgba(226, 232, 240, 0.6);
  text-align: center;
}

@media (max-width: 900px) {
  .post-row {
    grid-template-columns: 1fr;
    text-align: left;
  }

  .post-row__cta {
    text-align: left;
  }

  .panel-grid,
  .card-grid,
  .resource-grid {
    grid-template-columns: 1fr;
  }

  .masthead {
    justify-content: center;
  }

  .main-nav {
    justify-content: center;
  }
}