/* General Styles */
body {
  font-family: 'Arial', sans-serif;
  margin: 0;
  padding: 0;
  line-height: 1.6;
  color: #333;
  background-color: #f9f9f9;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

/* Header */
header {
  background: #2c3e50;
  color: #fff;
  padding: 1rem 0;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

header .logo {
  display: flex;
  align-items: center;
}

header .logo img {
  height: 40px;
  margin-right: 10px;
}

header nav ul {
  list-style: none;
  display: flex;
  gap: 20px;
  margin: 0;
  padding: 0;
}

header nav ul li a {
  color: #fff;
  text-decoration: none;
  font-weight: bold;
  transition: color 0.3s ease;
}

header nav ul li a:hover {
  color: #e67e22;
}

/* Hero Section */
.hero {
  background: #3498db;
  color: #fff;
  padding: 6rem 0;
  text-align: center;
}

.hero h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
}

.btn-primary, .btn-secondary {
  padding: 0.8rem 1.5rem;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  transition: background 0.3s ease, transform 0.3s ease;
}

.btn-primary {
  background: #e67e22;
  color: #fff;
}

.btn-primary:hover {
  background: #d35400;
  transform: translateY(-2px);
}

.btn-secondary {
  background: #fff;
  color: #3498db;
}

.btn-secondary:hover {
  background: #f4f4f4;
  transform: translateY(-2px);
}

/* Features Section */
.features {
  padding: 4rem 0;
  text-align: center;
  background: #fff;
}

.features h2 {
  font-size: 2rem;
  margin-bottom: 2rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.feature {
  background: #f4f4f4;
  padding: 1.5rem;
  border-radius: 5px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature:hover {
  transform: translateY(-5px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.feature h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

/* Support Us Section */
.support {
  background: #ecf0f1;
  padding: 4rem 0;
  text-align: center;
}

.support h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.support p {
  margin-bottom: 2rem;
}

.costs {
  margin-bottom: 2rem;
}

.costs ul {
  list-style: none;
  padding: 0;
}

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

/* Support GPU Rental Section */
.support-gpu {
  padding: 4rem 0;
  text-align: center;
  background: #fff;
}

.support-gpu h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.support-gpu p {
  font-size: 1rem;
  margin-bottom: 2rem;
}

.gpu-support-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px; /* Increased gap for better spacing */
  margin-top: 2rem;
}

.gpu-support-card {
  background: #f4f4f4;
  padding: 1.5rem;
  border-radius: 5px;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.gpu-support-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.gpu-support-card h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.gpu-support-card p {
  font-size: 1rem;
  margin-bottom: 1rem;
  color: #666;
}

.gpu-support-card .btn-primary {
  margin-top: 1rem;
}

/* Tier Supporters Section */
.tier-supporters {
  padding: 4rem 0;
  text-align: center;
  background: #ecf0f1;
}

.tier-supporters h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.tier-supporters p {
  font-size: 1rem;
  margin-bottom: 2rem;
}

.tier-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px; /* Increased gap for better spacing */
  margin-top: 2rem;
}

.tier-card {
  background: #fff;
  padding: 1.5rem;
  border-radius: 5px;
  text-align: center;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.tier-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.tier-card.highlighted {
  border: 2px solid #e67e22; /* Highlight border */
  background: #fff3e0; /* Light background for highlight */
}

.tier-card h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: #2c3e50;
}

.tier-card p {
  font-size: 1rem;
  margin-bottom: 1rem;
  color: #666;
}

.tier-card ul {
  list-style-type: disc;
  padding-left: 20px;
  margin-bottom: 1rem;
  text-align: left;
}

.tier-card ul li {
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  color: #444;
}

.tier-card .btn-primary {
  margin-top: 1rem;
}

/* Supporters Section */
.supporters {
  padding: 4rem 0;
  text-align: center;
  background: #fff;
}

.supporters h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.supporters-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  margin-top: 2rem;
}

.supporter-card {
  background: #fff;
  padding: 1.5rem;
  border-radius: 5px;
  text-align: left;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.supporter-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.supporter-card h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: #2c3e50;
}

.supporter-card p {
  font-size: 1rem;
  margin-bottom: 1rem;
  color: #666;
}

.supporter-card ul {
  list-style-type: disc;
  padding-left: 20px;
  margin-bottom: 1rem;
}

.supporter-card ul li {
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  color: #444;
}

/* Hall of Fame Section */
.hall-of-fame {
  background: #ecf0f1;
  padding: 4rem 0;
  text-align: center;
}

.hall-of-fame h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.hall-of-fame-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-top: 2rem;
}

.hall-of-fame-card {
  background: #fff;
  padding: 1.5rem;
  border-radius: 5px;
  text-align: center;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hall-of-fame-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.hall-of-fame-card h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: #2c3e50;
}

.hall-of-fame-card p {
  font-size: 1rem;
  color: #666;
}

/* About Section */
.about {
  padding: 4rem 0;
  text-align: center;
  background: #fff;
}

.about h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

/* Footer */
footer {
  background: #2c3e50;
  color: #fff;
  padding: 1.5rem 0;
  text-align: center;
}

footer ul {
  list-style: none;
  padding: 0;
  display: flex;
  justify-content: center;
  gap: 20px;
  margin: 0;
}

footer ul li a {
  color: #fff;
  text-decoration: none;
  transition: color 0.3s ease;
}

footer ul li a:hover {
  color: #e67e22;
}