:root {
  --color-primary: #1a73e8;
  --color-primary-dark: #1557b0;
  --color-primary-light: #e8f0fe;
  --color-accent: #ea4335;
  --color-accent-dark: #c5221f;
  --color-text-primary: #202124;
  --color-text-secondary: #5f6368;
  --color-text-muted: #80868b;
  --color-bg: #ffffff;
  --color-bg-alt: #f8f9fa;
  --color-border: #dadce0;
  --font-family: 'Inter', system-ui, sans-serif;
  --font-family-ar: 'Tajawal', 'Noto Sans Arabic', 'Inter', system-ui, sans-serif;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-8: 3rem;
  --space-10: 4rem;
  --container-max: 1200px;
  --border-radius: 8px;
  --border-radius-lg: 12px;
  --transition-fast: 0.15s ease;
  --shadow-card: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-card-hover: 0 4px 20px rgba(0,0,0,0.08);
}

/* Typography */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Tajawal:wght@400;500;700&display=swap');

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

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-bg);
}

/* RTL Overrides */
body[dir="rtl"] {
  font-family: var(--font-family-ar);
}

body[dir="rtl"] h1,
body[dir="rtl"] h2,
body[dir="rtl"] h3,
body[dir="rtl"] h4 {
  font-family: var(--font-family-ar);
}

body[dir="rtl"] .nav-brand {
  font-family: var(--font-family-ar);
}

body[dir="rtl"] .card-title,
body[dir="rtl"] .blog-card h3,
body[dir="rtl"] .hero-title,
body[dir="rtl"] .section-title,
body[dir="rtl"] .footer-title,
body[dir="rtl"] .stat-number,
body[dir="rtl"] .related-posts-title,
body[dir="rtl"] .blog-title {
  font-family: var(--font-family-ar);
}

/* RTL spacing fixes */
body[dir="rtl"] .footer-links {
  text-align: start;
}

body[dir="rtl"] .info-item {
  flex-direction: row-reverse;
}

body[dir="rtl"] .footer-bottom {
  text-align: center;
}

/* Language switcher */
.lang-switch {
  display: flex;
  gap: 4px;
  align-items: center;
}

.lang-btn {
  background: transparent;
  border: none;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
  transition: all 0.15s ease;
}

.lang-btn:hover {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.lang-btn.active {
  color: var(--color-primary);
  font-weight: 600;
}

.lang-separator {
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

/* Typography scale */
h1, .h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-5);
}

h2, .h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-4);
}

h3, .h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--space-3);
}

h4, .h4 {
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: var(--space-3);
}

p {
  margin-bottom: var(--space-4);
  font-size: 1rem;
  line-height: 1.6;
}

/* Container */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--space-4);
  }
}

/* Navigation */
.nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-4) 0;
}

.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  gap: var(--space-5);
  align-items: center;
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .nav-links.active {
    display: flex;
  }
}

.nav-link {
  color: var(--color-text-primary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.875rem;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }
}

/* Hero Section */
.hero {
  padding: var(--space-10) 0;
  background: linear-gradient(135deg, var(--color-bg-alt), var(--color-bg));
}

.hero-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  margin-bottom: var(--space-4);
  color: var(--color-text-primary);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
}

.hero-buttons {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
}

@media (max-width: 768px) {
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  body[dir="rtl"] .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 24px;
  border: none;
  border-radius: var(--border-radius);
  font-weight: 500;
  font-size: 0.875rem;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
}

.btn-primary {
  background: var(--color-primary);
  color: #ffffff;
}

.btn-primary:hover {
  background: var(--color-primary-dark);
}

.btn-accent {
  background: var(--color-accent);
  color: #ffffff;
}

.btn-accent:hover {
  background: var(--color-accent-dark);
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
  background: var(--color-primary-light);
}

/* Cards */
.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--space-6);
  transition: all var(--transition-fast);
}

.card:hover {
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-primary);
}

.card-header {
  margin-bottom: var(--space-4);
}

.card-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.card-meta {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  display: flex;
  gap: var(--space-4);
  align-items: center;
}

/* Grid System */
.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--space-4);
}

.col-1 { grid-column: span 1; }
.col-2 { grid-column: span 2; }
.col-3 { grid-column: span 3; }
.col-4 { grid-column: span 4; }
.col-5 { grid-column: span 5; }
.col-6 { grid-column: span 6; }
.col-7 { grid-column: span 7; }
.col-8 { grid-column: span 8; }
.col-9 { grid-column: span 9; }
.col-10 { grid-column: span 10; }
.col-11 { grid-column: span 11; }
.col-12 { grid-column: span 12; }

@media (min-width: 768px) {
  .col-md-6 { grid-column: span 6; }
  .col-md-4 { grid-column: span 4; }
  .col-md-3 { grid-column: span 3; }
}

/* Featured Posts */
.featured-posts {
  margin-top: var(--space-10);
}

.featured-posts-grid {
  display: grid;
  gap: var(--space-6);
}

@media (min-width: 1024px) {
  .featured-posts-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Blog List */
.blog-list {
  display: grid;
  gap: var(--space-4);
}

.blog-card {
  padding: var(--space-6);
  border-bottom: 1px solid var(--color-border);
  transition: background 0.15s ease;
}

.blog-card:hover {
  background: var(--color-bg-alt);
}

.blog-meta {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin: var(--space-2) 0;
}

.blog-excerpt {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}

/* Forms */
.form-group {
  margin-bottom: var(--space-4);
}

.form-label {
  display: block;
  margin-bottom: var(--space-2);
  font-weight: 500;
  font-size: 0.875rem;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  font-family: var(--font-family);
  font-size: 1rem;
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

/* Sections */
.section {
  padding: var(--space-10) 0;
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-8);
}

.section-subtitle {
  text-align: center;
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  margin-top: var(--space-4);
}

/* Utility */
.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-5 { margin-top: var(--space-5); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mt-10 { margin-top: var(--space-10); }

.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-5 { margin-bottom: var(--space-5); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-10 { margin-bottom: var(--space-10); }

.text-center { text-align: center; }
.text-primary { color: var(--color-primary); }
.text-accent { color: var(--color-accent); }
.text-secondary { color: var(--color-text-secondary); }
.text-muted { color: var(--color-text-muted); }

.fw-bold { font-weight: 700; }
.fw-semibold { font-weight: 600; }
.fw-medium { font-weight: 500; }
.fw-normal { font-weight: 400; }

/* Responsive Text */
.text-responsive {
  font-size: clamp(0.875rem, 2vw, 1rem);
}

/* Blog */
.blog-header {
  padding: var(--space-8) 0;
  background: var(--color-bg-alt);
  text-align: center;
}

.blog-title {
  margin-bottom: var(--space-4);
}

.blog-filters {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--space-6);
}

.filter-btn {
  padding: 8px 16px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.15s ease;
}

.filter-btn:hover, .filter-btn.active {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

/* Article */
.article {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-8) 0;
}

.article-meta {
  display: flex;
  gap: var(--space-6);
  align-items: center;
  margin: var(--space-4) 0;
  padding: var(--space-4) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.article-content {
  font-size: 1.125rem;
  line-height: 1.8;
}

.article-content h2 {
  margin-top: var(--space-8);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-2);
  border-bottom: 2px solid var(--color-primary-light);
}

.article-content h3 {
  margin-top: var(--space-6);
  margin-bottom: var(--space-3);
}

.article-content p {
  margin-bottom: var(--space-6);
}

.article-content img {
  width: 100%;
  height: auto;
  border-radius: var(--border-radius-lg);
  margin: var(--space-8) 0;
}

.article-content blockquote {
  border-left: 4px solid var(--color-primary);
  padding-left: var(--space-4);
  font-style: italic;
  color: var(--color-text-secondary);
  margin: var(--space-6) 0;
}

.related-posts {
  margin-top: var(--space-10);
}

.related-posts-title {
  margin-bottom: var(--space-6);
}

/* About */
.about-header {
  text-align: center;
  padding: var(--space-10) 0;
  background: var(--color-bg-alt);
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-6);
  margin: var(--space-8) 0;
}

.stat {
  text-align: center;
  padding: var(--space-6);
  background: var(--color-bg);
  border-radius: var(--border-radius-lg);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

/* Contact */
.contact {
  max-width: 1200px;
  margin: 0 auto;
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  margin-top: var(--space-8);
}

@media (max-width: 768px) {
  .contact-content {
    grid-template-columns: 1fr;
  }
}

.contact-info {
  padding: var(--space-6);
  background: var(--color-bg-alt);
  border-radius: var(--border-radius-lg);
}

.info-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.info-icon {
  width: 40px;
  height: 40px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

/* Footer */
.footer {
  background: var(--color-text-primary);
  color: white;
  padding: var(--space-8) 0;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-8);
}

.footer-section {
  margin-bottom: var(--space-6);
}

.footer-title {
  color: white;
  margin-bottom: var(--space-4);
  font-size: 1.125rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--space-2);
}

.footer-links a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.15s ease;
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid var(--color-text-muted);
  padding-top: var(--space-6);
  margin-top: var(--space-8);
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

/* Animations */
.fade-in {
  animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.slide-up {
  animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
  from { transform: translateY(30px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}
/* Article links + "coming soon" cards */
.card-title a { color: inherit; text-decoration: none; }
.card-title a:hover { color: var(--color-primary); text-decoration: underline; }
.coming-soon { opacity: 0.75; }
.coming-soon:hover { box-shadow: none; border-color: var(--color-border); background: transparent; }
.badge-soon {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 999px;
  background: var(--color-bg-alt);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}

/* Contact form status message */
.form-status { margin-top: var(--space-4); font-size: 0.95rem; color: var(--color-text-muted); }