/* ============================================
   ARTICLES.CSS
   Additive stylesheet for articles.html and
   article-template.html. Loaded AFTER index.css.
   Does not modify any existing site styles.
   ============================================ */

/* -----------------------------------------
   Article index meta row (date / read time)
   ----------------------------------------- */
.card-meta {
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  color: #555;
  margin-bottom: 0.5rem;
  display: flex;
  gap: 0.75rem;
}

/* -----------------------------------------
   Article page — header block
   (sits in place of the homepage hero)
   ----------------------------------------- */
.article-hero {
  position: relative;
  padding: calc(var(--nav-h) + 3rem) 2.5rem 2rem;
  max-width: 760px;
  margin: 0 auto;
}

.article-meta-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #555;
  margin-bottom: 1.25rem;
}

.article-meta-row .accent {
  color: var(--accent);
  opacity: 0.8;
}

.article-title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 4.5vw, 3.2rem);
  font-weight: 300;
  line-height: 1.1;
  color: #e8e8e8;
  letter-spacing: -0.01em;
  margin-bottom: 1rem;
}

.article-title em {
  font-style: italic;
  color: var(--accent);
}

.article-dek {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 300;
  line-height: 1.8;
  color: var(--dim);
}

.article-hero-img {
  max-width: 760px;
  margin: 1rem auto 0;
  padding: 0 2.5rem;
}

.article-hero-img img {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--border-mid);
}

.article-hero-img figcaption {
  font-size: 0.6rem;
  letter-spacing: 0.05em;
  color: #555;
  margin-top: 0.5rem;
}

/* -----------------------------------------
   Article body content
   ----------------------------------------- */
.article-body {
  max-width: 760px;
  margin: 0 auto;
  padding: 2rem 2.5rem 4rem;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--text);
}

.article-body p {
  margin-bottom: 1.5rem;
}

.article-body h2 {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 300;
  font-size: 1.5rem;
  color: #e0e0e0;
  margin: 2.5rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-mid);
}

.article-body h3 {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  opacity: 0.8;
  margin: 2rem 0 0.75rem;
}

.article-body ul,
.article-body ol {
  margin: 0 0 1.5rem 1.25rem;
}

.article-body li {
  margin-bottom: 0.6rem;
  line-height: 1.8;
}

.article-body a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(168,255,120,0.35);
}

.article-body a:hover {
  border-bottom-color: var(--accent);
}

.article-body img {
  width: 100%;
  height: auto;
  border: 1px solid var(--border-mid);
  margin: 0.5rem 0;
  display: block;
}

.article-body figure {
  margin: 2rem 0;
}

.article-body figcaption {
  font-size: 0.6rem;
  letter-spacing: 0.05em;
  color: #555;
  margin-top: 0.6rem;
}

.article-body blockquote {
  border-left: 2px solid var(--accent);
  padding: 0.25rem 0 0.25rem 1.5rem;
  margin: 2rem 0;
  color: var(--dim);
  font-style: italic;
  font-family: var(--font-serif);
  font-size: 1.15rem;
}

.article-body code {
  font-family: var(--font-mono);
  background: rgba(168,255,120,0.06);
  color: var(--accent);
  padding: 0.1rem 0.4rem;
  font-size: 0.85em;
}

.article-divider {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 2.5rem;
}

.article-divider hr {
  border: none;
  border-top: 1px solid var(--border-mid);
  margin: 2rem 0;
}

.article-tags {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 2.5rem 4rem;
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.article-tag {
  font-size: 0.58rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--dim);
  border: 1px solid var(--border-mid);
  padding: 0.4rem 0.75rem;
}

/* -----------------------------------------
   Back-to-articles link
   ----------------------------------------- */
.article-back {
  max-width: 760px;
  margin: 0 auto;
  padding: 2.5rem 2.5rem 0;
}

.article-back a {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dim);
  text-decoration: none;
}

.article-back a:hover {
  color: var(--accent);
}

/* -----------------------------------------
   MOBILE RESPONSIVE
   (index.html currently has no mobile rules —
   these are scoped to header/nav/card-grid/
   article-* classes only, for these two pages)
   ----------------------------------------- */
@media (max-width: 760px) {

  header {
    padding: 0 1.25rem;
  }

  nav {
    display: none; /* replaced by hamburger — see articles.html script */
  }

  nav.nav-open {
    display: flex;
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(10,10,10,0.98);
    border-bottom: 1px solid var(--border);
    z-index: 49;
  }

  nav.nav-open a {
    padding: 1rem 1.25rem;
    border-left: none;
    border-bottom: 1px solid var(--border-mid);
    width: 100%;
  }

  .nav-toggle {
    display: block;
  }

  .challenge-btn {
    margin-left: 0.75rem;
    padding: 0.5rem 0.7rem;
    font-size: 0.55rem;
  }

  .sections {
    padding: 1.5rem 1.25rem;
  }

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

  .card {
    padding: 1.5rem;
  }

  .article-hero,
  .article-hero-img,
  .article-body,
  .article-divider,
  .article-tags,
  .article-back {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }

  .article-title {
    font-size: 1.9rem;
  }

  .article-body {
    font-size: 0.9rem;
    padding-bottom: 3rem;
  }

  body {
    padding-bottom: 90px;
  }

  footer {
    padding: 1rem 1.25rem;
    flex-direction: column;
    gap: 0.4rem;
    align-items: flex-start;
  }
}

/* Hide nav toggle on desktop by default */
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-mid);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  width: 34px;
  height: 34px;
  cursor: pointer;
}