:root {
  --primary: #1a365d;
  --primary-light: #2c5282;
  --accent: #2563eb;
  --accent-light: #3b82f6;
  --cta-bg: #eff6ff;
  --cta-border: #2563eb;
  --bg: #ffffff;
  --bg-alt: #f8fafc;
  --bg-card: #ffffff;
  --text: #1e293b;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --border-dark: #cbd5e1;
  --radius: 12px;
  --radius-sm: 8px;
  --max-width: 820px;
  --max-width-wide: 1200px;
  --font-heading: Georgia, 'Times New Roman', Times, serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--text);
  line-height: 1.7;
  background: var(--bg);
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }
.container-wide { max-width: var(--max-width-wide); margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.site-logo {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: bold;
  color: var(--primary);
  text-decoration: none;
}
.site-logo:hover { text-decoration: none; }
.lang-selector { display: flex; gap: 6px; flex-wrap: wrap; }
.lang-selector a {
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 0.78rem;
  color: var(--text-muted);
  text-decoration: none;
}
.lang-selector a:hover, .lang-selector a.active {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
  text-decoration: none;
}

/* Hero */
.hero { padding: 40px 0 24px; }
.hero h1 {
  font-size: 2.2rem;
  line-height: 1.25;
  margin-bottom: 14px;
}
.hero p {
  font-size: 1.08rem;
  color: var(--text-muted);
  max-width: 700px;
}
.hero-img { margin: 24px 0; border-radius: var(--radius); overflow: hidden; }

/* Typography */
h1, h2, h3 { font-family: var(--font-heading); color: var(--primary); line-height: 1.3; }
h1 { font-size: 2.2rem; margin: 0 0 1rem; }
h2 { font-size: 1.55rem; margin: 2.5rem 0 1rem; }
h3 { font-size: 1.28rem; margin: 1.5rem 0 0.75rem; }
p { margin: 0.75rem 0; }
ul, ol { margin: 0.75rem 0 0.75rem 1.5rem; }
li { margin: 0.4rem 0; }
strong { color: var(--primary); }

/* Quick Answer */
.quick-answer {
  background: var(--bg-alt);
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 20px 24px;
  margin: 24px 0;
}
.quick-answer h2 { margin-top: 0; font-size: 1.3rem; }
.quick-answer ul { margin: 0.5rem 0 0 1.5rem; }

/* Section */
section { margin: 2rem 0; }

/* Article meta */
.article-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

/* Service Card */
.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  margin: 24px 0;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}
.service-card .rank-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}
.service-card .rank-emoji { font-size: 1.5rem; }
.service-card h3 { margin-top: 0; }
.service-card .service-link { font-weight: 600; font-size: 1.05rem; }

/* CTA Block */
.cta-block {
  background: var(--cta-bg);
  border: 2px solid var(--cta-border);
  border-radius: var(--radius);
  padding: 24px 28px;
  margin: 24px 0;
  text-align: center;
}
.cta-block p { margin-bottom: 16px; color: var(--text); }
.cta-button {
  display: inline-block;
  background: var(--accent);
  color: white;
  padding: 12px 32px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  transition: background 0.2s ease;
}
.cta-button:hover { background: var(--primary); color: white; text-decoration: none; }

/* Comparison Table */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 0.95rem;
  display: block;
  overflow-x: auto;
}
.comparison-table th, .comparison-table td {
  border: 1px solid var(--border);
  padding: 12px 16px;
  text-align: left;
}
.comparison-table th {
  background: var(--primary);
  color: white;
  font-weight: 600;
}
.comparison-table tr:nth-child(even) { background: var(--bg-alt); }
.comparison-table td a { font-weight: 600; }

/* Checklist */
.checklist { list-style: none; margin: 1rem 0; padding: 0; }
.checklist li {
  padding-left: 28px;
  position: relative;
  margin: 0.5rem 0;
}
.checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: bold;
  font-size: 1.1rem;
}

/* Tips */
.tip {
  background: var(--bg-alt);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  margin: 12px 0;
}
.tip strong { color: var(--primary); }

/* Stats Block */
.stats-block {
  background: var(--bg-alt);
  border-radius: var(--radius);
  padding: 24px 28px;
  margin: 20px 0;
}
.stats-block ul { margin: 0.5rem 0 0 1.5rem; }

/* FAQ */
.faq details { border-bottom: 1px solid var(--border); padding: 16px 0; }
.faq summary {
  font-weight: 600;
  color: var(--primary);
  cursor: pointer;
  font-size: 1.05rem;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before { content: "▸ "; color: var(--accent); }
.faq details[open] summary::before { content: "▾ "; }
.faq details p { margin-top: 8px; color: var(--text); }

/* Brainstorm */
.brainstorm ol { margin: 0.75rem 0 0.75rem 1.5rem; }
.brainstorm li { margin: 0.6rem 0; }

/* Footer */
.site-footer {
  background: var(--primary);
  color: #cbd5e1;
  padding: 40px 0 24px;
  margin-top: 48px;
}
.site-footer a { color: #93c5fd; }
.footer-links { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 24px; }
.footer-links a { color: #cbd5e1; font-size: 0.9rem; }
.footer-links a:hover { color: white; }
.footer-copy {
  font-size: 0.85rem;
  color: #94a3b8;
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 16px;
}

/* Legal pages */
.legal-page { padding: 40px 0; }
.legal-page h1 { font-size: 1.8rem; margin-bottom: 1rem; }
.legal-page h2 { font-size: 1.3rem; margin: 2rem 0 0.75rem; }
.legal-page p, .legal-page li { font-size: 0.95rem; }

/* RTL */
[dir="rtl"] { text-align: right; }
[dir="rtl"] .quick-answer {
  border-left: none;
  border-right: 4px solid var(--accent);
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
}
[dir="rtl"] ul, [dir="rtl"] ol { margin: 0.75rem 1.5rem 0.75rem 0; }
[dir="rtl"] .checklist li { padding-left: 0; padding-right: 28px; }
[dir="rtl"] .checklist li::before { left: auto; right: 0; }

/* Responsive */
@media (max-width: 768px) {
  body { font-size: 16px; }
  .hero h1 { font-size: 1.7rem; }
  h2 { font-size: 1.35rem; }
  h3 { font-size: 1.15rem; }
  .container, .container-wide { padding: 0 16px; }
  .header-inner { flex-direction: column; align-items: flex-start; }
  .comparison-table { font-size: 0.85rem; }
  .comparison-table th, .comparison-table td { padding: 8px 10px; }
  .service-card { padding: 20px; }
  .cta-block { padding: 20px; }
  .lang-selector a { font-size: 0.72rem; padding: 3px 8px; }
}
@media (max-width: 480px) {
  .hero h1 { font-size: 1.45rem; }
  .cta-button { padding: 10px 24px; font-size: 0.95rem; }
}