/* Pixel Vault — shared stylesheet */

:root {
  --bg: #0f1115;
  --bg-alt: #171a21;
  --card: #1d212b;
  --border: #2a2f3d;
  --text: #d7dae2;
  --text-dim: #9aa0ae;
  --accent: #7ee787;
  --accent-2: #ffa657;
  --link: #79c0ff;
  --max-width: 960px;
}

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

html {
  font-size: 16px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif;
  line-height: 1.7;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

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

a:hover {
  text-decoration: underline;
}

/* Header */
.site-header {
  background: var(--bg-alt);
  border-bottom: 2px solid var(--accent);
  padding: 1rem 0;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.logo {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: var(--text);
}

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

.site-nav a {
  color: var(--text-dim);
  margin-left: 1.25rem;
  font-weight: 600;
}

.site-nav a:hover {
  color: var(--accent);
  text-decoration: none;
}

/* Hero / intro */
.hero {
  padding: 3rem 0 2rem;
  text-align: center;
}

.hero h1 {
  font-size: 2.2rem;
  line-height: 1.25;
  margin-bottom: 0.75rem;
}

.hero p {
  color: var(--text-dim);
  max-width: 640px;
  margin: 0 auto;
}

/* Article grid */
.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
  padding: 1.5rem 0 3rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.card .tag {
  align-self: flex-start;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-2);
}

.card h2 {
  font-size: 1.1rem;
  line-height: 1.4;
}

.card h2 a {
  color: var(--text);
}

.card h2 a:hover {
  color: var(--accent);
  text-decoration: none;
}

.card p {
  color: var(--text-dim);
  font-size: 0.92rem;
  flex-grow: 1;
}

.card time {
  color: var(--text-dim);
  font-size: 0.8rem;
}

/* Article pages */
.article-page {
  padding: 2.5rem 0 3rem;
  max-width: 720px;
  margin: 0 auto;
}

.article-page h1 {
  font-size: 2rem;
  line-height: 1.3;
  margin-bottom: 0.5rem;
}

.article-meta {
  color: var(--text-dim);
  font-size: 0.88rem;
  margin-bottom: 2rem;
}

.article-page h2 {
  font-size: 1.4rem;
  margin: 2rem 0 0.75rem;
  color: var(--accent);
}

.article-page h3 {
  font-size: 1.15rem;
  margin: 1.5rem 0 0.5rem;
}

.article-page p {
  margin-bottom: 1rem;
}

.article-page ul,
.article-page ol {
  margin: 0 0 1rem 1.5rem;
}

.article-page li {
  margin-bottom: 0.4rem;
}

.article-page blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 1rem;
  color: var(--text-dim);
  margin: 1.25rem 0;
}

.related {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.related h2 {
  font-size: 1.1rem;
  color: var(--text);
  margin-bottom: 0.75rem;
}

/* Static pages */
.page {
  padding: 2.5rem 0 3rem;
  max-width: 720px;
  margin: 0 auto;
}

.page h1 {
  font-size: 1.9rem;
  margin-bottom: 1.25rem;
}

.page h2 {
  font-size: 1.3rem;
  margin: 1.75rem 0 0.6rem;
  color: var(--accent);
}

.page p {
  margin-bottom: 1rem;
}

.page ul {
  margin: 0 0 1rem 1.5rem;
}

/* Footer */
.site-footer {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  padding: 1.75rem 0;
  margin-top: 2rem;
}

.site-footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.site-footer p {
  color: var(--text-dim);
  font-size: 0.85rem;
}

.footer-nav a {
  color: var(--text-dim);
  font-size: 0.85rem;
  margin-right: 1rem;
}

.footer-nav a:hover {
  color: var(--accent);
}

@media (max-width: 600px) {
  .hero h1 {
    font-size: 1.6rem;
  }

  .article-page h1 {
    font-size: 1.5rem;
  }

  .site-header .container,
  .site-footer .container {
    flex-direction: column;
    text-align: center;
  }

  .site-nav a {
    margin: 0 0.6rem;
  }
}