:root {
  --teal: #0d9488;
  --teal-dark: #0f766e;
  --gold: #c9a227;
  --text: #1e293b;
  --muted: #64748b;
  --bg: #f8fafc;
  --card: #ffffff;
  --border: #e2e8f0;
  --radius: 12px;
  --shadow: 0 4px 20px rgba(15, 118, 110, 0.08);
}

* { box-sizing: border-box; }

body {
  font-family: system-ui, -apple-system, 'Segoe UI', Tahoma, sans-serif;
  max-width: 820px;
  margin: 0 auto;
  padding: 1.25rem 1.25rem 2.5rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
}

a { color: var(--teal-dark); text-decoration: none; }
a:hover { text-decoration: underline; color: var(--teal); }

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}

.site-nav a.home { font-weight: 700; color: var(--teal-dark); }

h1 { font-size: 1.65rem; margin: 0 0 0.75rem; line-height: 1.3; color: var(--text); }
h2 { font-size: 1.15rem; margin: 1.75rem 0 0.5rem; color: var(--text); }
h3 { font-size: 1rem; margin: 1.25rem 0 0.35rem; }

.updated, .muted { color: var(--muted); font-size: 0.9rem; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  margin: 1rem 0;
  box-shadow: var(--shadow);
}

.tip-box {
  background: linear-gradient(135deg, #f0fdfa 0%, #ecfeff 100%);
  border: 1px solid #99f6e4;
  border-radius: var(--radius);
  padding: 1rem 1.15rem;
  margin: 1rem 0;
}

.tip-box strong { color: var(--teal-dark); }

.article-hero {
  margin: 0 0 1.25rem;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.article-hero img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 280px;
  object-fit: cover;
}

.article-grid {
  display: grid;
  gap: 1rem;
  margin: 1.25rem 0;
}

@media (min-width: 560px) {
  .article-grid { grid-template-columns: 1fr 1fr; }
}

.article-card {
  display: block;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  box-shadow: var(--shadow);
  transition: border-color 0.15s, transform 0.15s;
}

.article-card:hover {
  border-color: var(--teal);
  transform: translateY(-2px);
  text-decoration: none;
}

.article-card img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  display: block;
}

.article-card-body { padding: 0.85rem 1rem 1rem; }

.article-card h2 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
  color: var(--teal-dark);
}

.article-card p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.45;
}

.tool-grid {
  display: grid;
  gap: 0.75rem;
  margin: 1rem 0;
}

.tool-grid a {
  display: block;
  padding: 0.65rem 0.85rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  text-decoration: none;
  color: var(--teal-dark);
  font-weight: 500;
}

.tool-grid a:hover { border-color: var(--teal); }

.lang-en {
  direction: ltr;
  text-align: left;
  margin-top: 2rem;
  padding-top: 1.75rem;
  border-top: 2px solid var(--border);
}

.lang-ar { direction: rtl; text-align: right; }

.site-footer {
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  font-size: 0.9rem;
  color: var(--muted);
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin-bottom: 0.75rem;
}

ul, ol { padding-inline-start: 1.25rem; }
li { margin: 0.35rem 0; }

.breadcrumb {
  font-size: 0.88rem;
  color: var(--muted);
  margin-bottom: 0.75rem;
}

.breadcrumb a { color: var(--muted); }

/* Mobile-first article reading (opened from phone / in-app browser) */
@media (max-width: 599px) {
  body {
    padding: 0.85rem 1rem 2rem;
    font-size: 1rem;
    line-height: 1.7;
  }
  h1 { font-size: 1.35rem; }
  h2 { font-size: 1.05rem; margin-top: 1.35rem; }
  .site-nav {
    gap: 0.35rem 0.85rem;
    font-size: 0.85rem;
    margin-bottom: 1rem;
  }
  .article-grid {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }
  .article-card img { height: 120px; }
  .article-hero img { max-height: 200px; }
  .article-card-body { padding: 0.75rem 0.85rem 0.9rem; }
  .card, .tip-box { padding: 0.9rem 1rem; }
}