/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Open Sans", sans-serif;
  line-height: 1.6;
  color: #1f2937;
  background-color: #ffffff;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: "Montserrat", sans-serif;
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 3rem;
  color: #1f2937;
}

/* Header */
.header {
  background: #ffffff;
  border-bottom: 1px solid #e5e7eb;
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.nav-brand h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: #1f2937;
  margin-bottom: 0.25rem;
}

.nav-brand .subtitle {
  font-size: 0.875rem;
  color: #6b7280;
}

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

.nav-link {
  text-decoration: none;
  color: #6b7280;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
  color: #6366f1;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
  padding: 5rem 0;
}

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

.hero-title {
  font-size: 3rem;
  font-weight: 900;
  color: #1f2937;
  margin-bottom: 1.5rem;
}

.hero-description {
  font-size: 1.25rem;
  color: #6b7280;
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  border-radius: 0.5rem;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: #6366f1;
  color: white;
}

.btn-primary:hover {
  background: #4f46e5;
  transform: translateY(-2px);
}

.btn-secondary {
  background: #1f2937;
  color: white;
}

.btn-secondary:hover {
  background: #374151;
  transform: translateY(-2px);
}

/* Market Overview */
.market-overview {
  padding: 5rem 0;
  background: #ffffff;
}

.market-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.market-card {
  background: #f1f5f9;
  padding: 2rem;
  border-radius: 0.75rem;
  text-align: center;
  border: 1px solid #e5e7eb;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.market-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.market-card h4 {
  font-size: 1.125rem;
  color: #6b7280;
  margin-bottom: 1rem;
}

.price {
  font-size: 2rem;
  font-weight: 700;
  color: #1f2937;
  margin-bottom: 0.5rem;
}

.change {
  font-weight: 600;
  font-size: 1.125rem;
}

.change.positive {
  color: #10b981;
}

.change.negative {
  color: #dc2626;
}

/* Top Stocks */
.top-stocks {
  padding: 5rem 0;
  background: #f9fafb;
}

.stocks-table {
  background: white;
  border-radius: 0.75rem;
  overflow: hidden;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.table-header {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 1rem;
  padding: 1.5rem;
  background: #1f2937;
  color: white;
  font-weight: 600;
}

.table-row {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 1rem;
  padding: 1.5rem;
  border-bottom: 1px solid #e5e7eb;
  align-items: center;
}

.table-row:last-child {
  border-bottom: none;
}

.stock-name strong {
  display: block;
  font-weight: 600;
  color: #1f2937;
}

.stock-code {
  font-size: 0.875rem;
  color: #6b7280;
}

.stock-price {
  font-weight: 600;
  font-size: 1.125rem;
}

.stock-change.positive,
.stock-percent.positive {
  color: #10b981;
}

.stock-change.negative,
.stock-percent.negative {
  color: #dc2626;
}

/* News Section */
.news-section {
  padding: 5rem 0;
  background: #ffffff;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.news-card {
  background: #f1f5f9;
  padding: 2rem;
  border-radius: 0.75rem;
  border: 1px solid #e5e7eb;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.news-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.news-date {
  font-size: 0.875rem;
  color: #6366f1;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.news-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: #1f2937;
  margin-bottom: 1rem;
}

.news-excerpt {
  color: #6b7280;
  line-height: 1.6;
}

/* Footer */
.footer {
  background: #1f2937;
  color: white;
  padding: 3rem 0 1rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h4 {
  color: white;
  margin-bottom: 1rem;
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: 0.5rem;
}

.footer-section a {
  color: #d1d5db;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-section a:hover {
  color: #6366f1;
}

.footer-bottom {
  border-top: 1px solid #374151;
  padding-top: 2rem;
  text-align: center;
}

.disclaimer {
  font-size: 0.875rem;
  color: #9ca3af;
  margin-top: 1rem;
  line-height: 1.5;
}

/* Responsive Design */
@media (max-width: 768px) {
  .header .container {
    flex-direction: column;
    gap: 1rem;
  }

  .nav-menu {
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .table-header,
  .table-row {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .table-header {
    display: none;
  }

  .table-row {
    padding: 1rem;
  }
}