/* ═══════════════════════════════════════════════════════════════════
   VURA.ONE - MAIN STYLES
   Modern, Clean, Performance-Focused Design
   ═══════════════════════════════════════════════════════════════════ */

/* ─── Reset & Base ─── */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Color Palette */
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --secondary: #10b981;
  --accent: #f59e0b;
  --text: #1e293b;
  --text-light: #64748b;
  --bg: #ffffff;
  --bg-alt: #f8fafc;
  --border: #e2e8f0;
  
  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  
  /* Spacing */
  --container-width: 1200px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ─── Header ─── */
.header {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  padding: 1.5rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
}

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

.logo h1 {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: 2px;
  margin-bottom: 0.2rem;
}

.tagline {
  font-size: 0.85rem;
  opacity: 0.9;
  font-weight: 300;
}

.nav {
  display: flex;
  gap: 2rem;
}

.nav a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  transition: opacity 0.2s;
}

.nav a:hover {
  opacity: 0.8;
}

/* ─── Hero Section ─── */
.hero {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: var(--spacing-xl) 0;
  text-align: center;
}

.hero-title {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 1.25rem;
  max-width: 700px;
  margin: 0 auto 2rem;
  opacity: 0.95;
  line-height: 1.6;
}

.cta-button {
  display: inline-block;
  background: white;
  color: var(--primary);
  padding: 1rem 2.5rem;
  border-radius: 50px;
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 30px rgba(0, 0, 0, 0.3);
}

/* ─── Articles Section ─── */
.articles-section {
  padding: var(--spacing-lg) 0;
  background: var(--bg-alt);
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: var(--spacing-md);
  text-align: center;
  color: var(--text);
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin-top: var(--spacing-md);
}

.article-card {
  background: white;
  border-radius: 12px;
  padding: 2rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  transition: transform 0.2s, box-shadow 0.2s;
  border-top: 4px solid var(--primary);
}

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.article-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 1rem;
  line-height: 1.3;
}

.article-title a {
  color: var(--text);
  text-decoration: none;
  transition: color 0.2s;
}

.article-title a:hover {
  color: var(--primary);
}

.article-excerpt {
  color: var(--text-light);
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

.read-more {
  color: var(--primary);
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  transition: gap 0.2s;
}

.read-more:hover {
  gap: 0.5rem;
}

/* ─── About Section ─── */
.about-section {
  padding: var(--spacing-lg) 0;
  background: white;
}

.about-text {
  max-width: 800px;
  margin: 0 auto;
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--text-light);
  text-align: center;
}

/* ─── Footer ─── */
.footer {
  background: var(--text);
  color: white;
  padding: 2rem 0;
  text-align: center;
}

.footer .container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
}

.footer-nav {
  display: flex;
  gap: 2rem;
}

.footer-nav a {
  color: white;
  text-decoration: none;
  opacity: 0.8;
  transition: opacity 0.2s;
}

.footer-nav a:hover {
  opacity: 1;
}

/* ─── Responsive Design ─── */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .nav {
    gap: 1rem;
  }
  
  .articles-grid {
    grid-template-columns: 1fr;
  }
  
  .footer .container {
    gap: 1.5rem;
  }
  
  .footer-nav {
    flex-direction: column;
    gap: 0.5rem;
  }
}