/* Placeholder stylesheet for generated blog pages.
   Uses the same color palette as the main site (see MainFrontend/index.html)
   so it doesn't look out of place. Swap for the real shared stylesheet once
   the site's design system is broken out into its own file. */

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

:root {
  --bg: #020508;
  --bg1: #05080f;
  --bg2: #080d18;
  --bg3: #0d1525;
  --border: rgba(96, 165, 250, 0.15);
  --border2: rgba(96, 165, 250, 0.32);
  --text: #e8edf5;
  --muted: #6b7a99;
  --dim: #3d4a63;
  --blue: #60a5fa;
  --cyan: #22d3ee;
  --green: #4ade80;
  --font: 'Space Grotesk', Arial, sans-serif;
  --mono: 'Space Mono', monospace;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.7;
}

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

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 0 5%;
  height: 64px;
  border-bottom: 1px solid var(--border);
  background: rgba(2, 5, 8, 0.8);
  backdrop-filter: blur(20px);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--mono);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  flex-shrink: 0;
}

.logo-text { color: var(--text); }
.logo-text span { color: var(--blue); }
.logo-full { display: inline; }
.logo-short { display: none; }

.nav-center { display: flex; gap: 2rem; list-style: none; }
.nav-center a {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--muted);
  letter-spacing: 0.05em;
  transition: color 0.2s;
}
.nav-center a:hover { color: var(--blue); }

.nav-right { display: flex; align-items: center; gap: 1rem; flex-shrink: 0; }

.nav-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--green);
  white-space: nowrap;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  animation: blink 2s infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.2; }
}

.nav-cta {
  border: 1px solid var(--blue);
  color: var(--blue);
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.5rem 1.2rem;
  border-radius: 4px;
  letter-spacing: 0.08em;
  white-space: nowrap;
  transition: color 0.2s;
  position: relative;
  overflow: hidden;
}

.nav-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--blue);
  transform: translateX(-100%);
  transition: transform 0.2s;
  z-index: -1;
}

.nav-cta:hover { color: var(--bg); }
.nav-cta:hover::before { transform: translateX(0); }

/* MOBILE NAV TOGGLE (hamburger) - hidden on desktop, shown <=700px */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  flex-shrink: 0;
  z-index: 600;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  transition: transform 0.25s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 900px) {
  .nav-status { display: none; }
}

@media (max-width: 700px) {
  .nav-toggle { display: flex; }

  .nav-center {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    z-index: 499;
    flex-direction: column;
    gap: 0;
    padding: 0 5%;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    background: rgba(2, 5, 8, 0.97);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: max-height 0.3s ease, opacity 0.25s ease, padding 0.3s ease;
    pointer-events: none;
  }

  .nav-center.open {
    max-height: 400px;
    opacity: 1;
    padding: 0.5rem 5% 1.25rem;
    pointer-events: auto;
  }

  .nav-center li { width: 100%; }

  .nav-center a {
    display: block;
    padding: 0.9rem 0;
    font-size: 0.95rem;
    border-bottom: 1px solid var(--border);
  }

  .nav-center li:last-child a { border-bottom: none; }

  .logo-full { display: none; }
  .logo-short { display: inline; }
}

main { max-width: 920px; margin: 0 auto; padding: 3rem 5%; }

.breadcrumbs { font-family: var(--mono); font-size: 0.75rem; color: var(--muted); margin-bottom: 1.5rem; }
.breadcrumbs a { color: var(--muted); }
.breadcrumbs a:hover { color: var(--blue); }

.article-header .category {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 0.75rem;
}

.article-header h1 { font-size: clamp(2rem, 5vw, 2.75rem); line-height: 1.15; margin-bottom: 0.75rem; }

.published-date { font-family: var(--mono); font-size: 0.8rem; color: var(--muted); margin-bottom: 2rem; }

.featured-image {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid var(--border);
  margin-bottom: 2rem;
}

.article-body { font-size: 1.05rem; }
.article-body img { max-width: 100%; height: auto; border-radius: 8px; margin: 1.5rem 0; }
.article-body h2 { font-size: 1.5rem; margin: 2rem 0 1rem; }
.article-body h3 { font-size: 1.2rem; margin: 1.5rem 0 0.75rem; }
.article-body p { margin-bottom: 1.25rem; color: var(--muted); }
.article-body a { color: var(--blue); text-decoration: underline; }

/* blog index */
main.blog-index { max-width: 1100px; }

.blog-hero { margin-bottom: 3rem; max-width: 640px; }

.eyebrow {
  font-family: var(--mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--cyan);
  margin-bottom: 0.75rem;
}

.blog-hero h1 { font-size: clamp(2rem, 5vw, 2.75rem); margin-bottom: 0.75rem; }
.blog-subtitle { color: var(--muted); font-size: 1rem; line-height: 1.7; }

.post-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

@media (max-width: 900px) {
  .post-list { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .post-list { grid-template-columns: 1fr; }
}

.post-card {
  display: flex;
  flex-direction: column;
  background: var(--bg1);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.75rem;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.post-card:hover {
  background: var(--bg2);
  border-color: var(--border2);
  transform: translateY(-3px);
}

.post-card-image {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 1rem;
}

.post-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.post-card .category {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--blue);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border: 1px solid var(--border2);
  border-radius: 999px;
  padding: 0.3rem 0.7rem;
  white-space: nowrap;
}

.post-card .date { font-family: var(--mono); font-size: 0.7rem; color: var(--dim); white-space: nowrap; }

.post-card h2 { font-size: 1.25rem; line-height: 1.35; margin-bottom: 0.6rem; }
.post-card .excerpt { color: var(--muted); font-size: 0.9rem; line-height: 1.6; margin-bottom: 1.25rem; flex-grow: 1; }

.post-card .read-more {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--blue);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  margin-top: auto;
  align-self: flex-start;
  border: 1px solid var(--border2);
  border-radius: 8px;
  padding: 0.6rem 1rem;
  background: rgba(96, 165, 250, 0.06);
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.post-card:hover .read-more {
  background: var(--blue);
  border-color: var(--blue);
  color: var(--bg);
}

.post-card .arrow { transition: transform 0.2s ease; }
.post-card:hover .arrow { transform: translateX(4px); }

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--muted);
  border: 1px dashed var(--border2);
  border-radius: 12px;
  padding: 3rem 1.5rem;
}

.post-cta {
  margin-top: 3rem;
  padding: 2.5rem 2rem;
  text-align: center;
  background: var(--bg1);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.post-cta-text {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 1.25rem;
}

.post-cta-btn {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--bg);
  background: var(--blue);
  border: 1px solid var(--blue);
  border-radius: 6px;
  padding: 0.75rem 1.75rem;
  transition: background 0.2s ease, color 0.2s ease;
}

.post-cta-btn:hover {
  background: transparent;
  color: var(--blue);
}

.site-footer { text-align: center; padding: 2rem 5%; border-top: 1px solid var(--border); color: var(--muted); font-size: 0.85rem; }

@media (max-width: 600px) {
  main { padding: 2rem 5%; }
}