.pros-cons { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.pros, .cons { border-radius: 16px; padding: 16px; border: 1px solid rgba(148,163,184,0.15); }
.pros { background: rgba(16,185,129,0.12); border-color: rgba(16,185,129,0.25); }
.cons { background: rgba(239,68,68,0.12); border-color: rgba(239,68,68,0.25); }
.pros h3, .cons h3 { margin-top: 0; }
.pros ul, .cons ul { list-style: none; padding-left: 0; margin: 0; display: grid; gap: 8px; }
.pros li, .cons li { display: flex; align-items: flex-start; gap: 8px; }
.pros li img, .cons li img { width: 20px; height: 20px; margin-top: 2px; }
@media (max-width: 720px) { .pros-cons { grid-template-columns: 1fr; } }
:root {
  --bg: #0b1220;
  --card: #0f172a;
  --muted: #94a3b8;
  --text: #e2e8f0;
  --accent: #22d3ee;
  --error: #f87171;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, "Helvetica Neue", Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background: radial-gradient(1200px 800px at 10% -10%, #0b1530, #0b1220 50%), var(--bg);
  line-height: 1.6;
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 16px;
}

.site-header, .site-footer {
  background: rgba(15, 23, 42, 0.7);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(148, 163, 184, 0.15);
}
.site-header { position: sticky; top: 0; z-index: 20; }
.site-header .container { display: flex; align-items: center; justify-content: space-between; }
.site-footer { border-top: 1px solid rgba(148,163,184,0.15); border-bottom: none; }

.brand {
  display: inline-block;
  font-weight: 700;
  letter-spacing: 0.2px;
  color: white;
  text-decoration: none;
  padding: 12px 0;
}

.nav { display: flex; gap: 16px; align-items: center; }
.nav a {
  color: var(--text);
  text-decoration: none;
  opacity: 0.9;
  padding: 6px 10px;
  border-radius: 8px;
}
.nav a[aria-current="page"] { background: rgba(34, 211, 238, 0.1); color: #e6faff; }
.nav a:hover { color: white; opacity: 1; background: rgba(148,163,184,0.12); }

.hero { padding: 32px 0 16px; }
.lead { color: var(--muted); max-width: 70ch; }

.card {
  background: var(--card);
  border: 1px solid rgba(148, 163, 184, 0.15);
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 10px 30px rgba(2, 6, 23, 0.5);
}

.card.soft {
  background: rgba(15, 23, 42, 0.6);
  border-color: rgba(148, 163, 184, 0.12);
  box-shadow: 0 6px 18px rgba(2, 6, 23, 0.35);
}

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin: 20px 0; }

.stat { font-size: 1.2rem; margin: 8px 0 0; color: white; }

.form { display: grid; gap: 12px; }
.field { display: grid; gap: 6px; }
label { font-weight: 600; }
input[type="date"] {
  background: #0b1220;
  color: var(--text);
  border: 1px solid rgba(148,163,184,0.25);
  border-radius: 12px;
  padding: 12px;
}
.muted { color: var(--muted); font-size: 0.9rem; }
.error { color: var(--error); min-height: 1.1em; }

.button {
  background: linear-gradient(135deg, #22d3ee, #38bdf8);
  color: #041018;
  border: 0;
  border-radius: 12px;
  padding: 12px 16px;
  font-weight: 700;
  cursor: pointer;
}
.button:hover { filter: brightness(1.05); }

details {
  background: rgba(2,6,23,0.25);
  border: 1px solid rgba(148,163,184,0.15);
  border-radius: 12px;
  padding: 12px 16px;
}
details + details { margin-top: 10px; }
summary { cursor: pointer; }

.site-footer { margin-top: 32px; position: relative; }
.site-footer::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 3px; background: linear-gradient(90deg, #22d3ee, #38bdf8, #8b5cf6); opacity: 0.7; }
.site-footer .container { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 28px; align-items: start; padding-top: 18px; padding-bottom: 18px; }
.site-footer .brand { font-weight: 800; color: white; text-decoration: none; letter-spacing: 0.2px; }
.site-footer p { margin: 6px 0; color: var(--muted); }
.site-footer h3 { margin: 6px 0 8px; font-size: 1rem; color: #e6f1ff; }
.footer-links { display: grid; gap: 6px; }
.footer-links a { color: var(--text); text-decoration: none; opacity: 0.9; }
.footer-links a:hover { color: white; text-decoration: underline; }
@media (max-width: 900px) { .site-footer .container { gap: 18px; } }
@media (max-width: 720px) {
  .site-footer .container { grid-template-columns: 1fr; text-align: left; }
}
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 10px; margin-top: 8px; }
.features.single { grid-template-columns: 1fr; }
.features li { display: flex; align-items: flex-start; gap: 8px; background: rgba(2,6,23,0.25); border: 1px solid rgba(148,163,184,0.15); border-radius: 12px; padding: 10px 12px; list-style: none; }
.features li img { width: 20px; height: 20px; flex: 0 0 20px; margin-top: 2px; }

/* Utility */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,1px,1px); white-space: nowrap; border: 0;
}

/* Ad Section Styles */
.ad-section {
  margin: 32px 0;
}

.ad-box {
  background: var(--card);
  border: 1px solid rgba(148, 163, 184, 0.15);
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 10px 30px rgba(2, 6, 23, 0.5);
  position: relative;
}

.ad-label {
  position: absolute;
  top: -10px;
  left: 20px;
  background: linear-gradient(135deg, #22d3ee, #38bdf8);
  color: #041018;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.ad-content {
  min-height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, 0.3);
  border-radius: 12px;
  border: 2px dashed rgba(148, 163, 184, 0.3);
}

.ad-placeholder {
  color: var(--muted);
  font-style: italic;
  margin: 0;
}

/* Article Section Styles */
.articles-section {
  margin: 32px 0;
}

.articles-section h2 {
  margin-bottom: 20px;
  color: white;
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.article-card {
  background: var(--card);
  border: 1px solid rgba(148, 163, 184, 0.15);
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 6px 18px rgba(2, 6, 23, 0.35);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.article-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(2, 6, 23, 0.5);
}

.article-image {
  margin: -20px -20px 16px -20px;
  border-radius: 16px 16px 0 0;
  overflow: hidden;
  background: rgba(15, 23, 42, 0.3);
}

.article-image img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  transition: transform 0.3s ease;
}

.article-card:hover .article-image img {
  transform: scale(1.05);
}

.article-card h3 {
  margin: 0 0 12px 0;
  color: white;
  font-size: 1.1rem;
  line-height: 1.3;
}

.article-card p {
  color: var(--muted);
  margin: 0 0 12px 0;
  line-height: 1.6;
  font-size: 0.95rem;
}

.article-card p:last-of-type {
  margin-bottom: 16px;
}

.article-link {
  display: inline-block;
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  padding: 8px 0;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

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

/* Responsive adjustments */
@media (max-width: 720px) {
  .articles-grid {
    grid-template-columns: 1fr;
  }
  
  .ad-content {
    min-height: 100px;
  }
}

/* Full Article Page Styles */
.article-full {
  max-width: 800px;
  margin: 0 auto;
}

.article-header {
  margin-bottom: 32px;
}

.article-header h1 {
  font-size: 2.5rem;
  line-height: 1.2;
  margin: 0 0 16px 0;
  color: white;
}

.article-meta {
  display: flex;
  gap: 16px;
  align-items: center;
  color: var(--muted);
  font-size: 0.9rem;
}

.article-category {
  background: linear-gradient(135deg, #22d3ee, #38bdf8);
  color: #041018;
  padding: 4px 12px;
  border-radius: 20px;
  font-weight: 600;
  font-size: 0.8rem;
}

.article-featured-image {
  margin: 0 -20px 32px -20px;
  border-radius: 16px;
  overflow: hidden;
  background: rgba(15, 23, 42, 0.3);
}

.article-featured-image img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  display: block;
}

.article-content {
  line-height: 1.7;
  font-size: 1.1rem;
}

.article-content h2 {
  color: white;
  font-size: 1.5rem;
  margin: 40px 0 20px 0;
  line-height: 1.3;
}

.article-content h3 {
  color: white;
  font-size: 1.3rem;
  margin: 32px 0 16px 0;
  line-height: 1.3;
}

.article-content p {
  margin: 0 0 20px 0;
  color: var(--text);
}

.article-content ul {
  margin: 20px 0;
  padding-left: 20px;
}

.article-content li {
  margin: 8px 0;
  color: var(--text);
}

.article-content strong {
  color: white;
  font-weight: 600;
}

.related-articles {
  margin-top: 60px;
  padding-top: 40px;
  border-top: 1px solid rgba(148, 163, 184, 0.15);
}

.related-articles h2 {
  margin-bottom: 24px;
  color: white;
  font-size: 1.8rem;
}

/* Responsive adjustments for article pages */
@media (max-width: 720px) {
  .article-header h1 {
    font-size: 2rem;
  }
  
  .article-featured-image img {
    height: 250px;
  }
  
  .article-content {
    font-size: 1rem;
  }
  
  .article-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}