/* Main CSS for dentatsuryoku.com */
:root {
  --primary-color: #4F46E5;
  --secondary-color: #7C3AED;
  --accent-color: #10B981;
  --text-color: #1F2937;
  --light-text: #6B7280;
  --background-color: #F9FAFB;
  --section-bg: #FFFFFF;
  --card-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  color: var(--text-color);
  background-color: var(--background-color);
  line-height: 1.6;
  font-size: 16px;
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: all 0.3s ease;
}

a:hover {
  color: var(--secondary-color);
  text-decoration: underline;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header Styles */
header {
  background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
  color: white;
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

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

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

.logo img {
  height: 40px;
  width: auto;
  margin-right: 0.5rem;
}

.logo h1 {
  font-size: 1.5rem;
  font-weight: 700;
}

nav ul {
  display: flex;
  list-style: none;
}

nav li {
  margin-left: 1.5rem;
}

nav a {
  color: white;
  font-weight: 500;
}

nav a:hover {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
}

.menu-toggle {
  display: none;
  background: transparent;
  border: none;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero Section */
.hero {
  background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('https://images.pexels.com/photos/3184339/pexels-photo-3184339.jpeg?auto=compress&cs=tinysrgb&w=1260&h=750');
  background-size: cover;
  background-position: center;
  color: white;
  padding: 6rem 0;
  text-align: center;
}

.hero h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  font-weight: 800;
}

.hero p {
  font-size: 1.25rem;
  max-width: 800px;
  margin: 0 auto 2rem;
}

.btn {
  display: inline-block;
  background-color: var(--accent-color);
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: 0.25rem;
  font-weight: 600;
  text-align: center;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}

.btn:hover {
  background-color: #0EA271;
  transform: translateY(-2px);
  text-decoration: none;
  color: white;
}

/* Features Section */
.features {
  padding: 4rem 0;
}

.section-title {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 3rem;
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
  margin: 0.5rem auto 0;
  border-radius: 2px;
}

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

.feature-card {
  background-color: var(--section-bg);
  border-radius: 0.5rem;
  padding: 2rem;
  text-align: center;
  box-shadow: var(--card-shadow);
  transition: transform 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
}

.feature-icon {
  background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
  color: white;
  width: 70px;
  height: 70px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin: 0 auto 1.5rem;
}

.feature-card h3 {
  margin-bottom: 1rem;
  font-size: 1.25rem;
}

/* Gaming Section */
.gaming {
  background-color: #F3F4F6;
  padding: 4rem 0;
}

.gaming-links {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.gaming-card {
  background-color: white;
  border-radius: 0.5rem;
  padding: 1.5rem;
  box-shadow: var(--card-shadow);
  transition: transform 0.3s ease;
}

.gaming-card:hover {
  transform: translateY(-3px);
}

.gaming-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--primary-color);
}

.gaming-card p {
  color: var(--light-text);
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.gaming-card a {
  font-weight: 600;
  display: inline-flex;
  align-items: center;
}

/* About Section */
.about {
  padding: 4rem 0;
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.about-image {
  border-radius: 0.5rem;
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

.about-image img {
  width: 100%;
  height: auto;
  display: block;
}

.about-text h2 {
  margin-bottom: 1.5rem;
  font-size: 2rem;
}

.about-text p {
  margin-bottom: 1rem;
}

/* Contact Section */
.contact {
  background-color: #F3F4F6;
  padding: 4rem 0;
}

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

.contact-info {
  background-color: white;
  border-radius: 0.5rem;
  padding: 2rem;
  box-shadow: var(--card-shadow);
}

.contact-info h3 {
  margin-bottom: 1.5rem;
  color: var(--primary-color);
}

.contact-details div {
  margin-bottom: 1rem;
  display: flex;
  align-items: flex-start;
}

.contact-icon {
  margin-right: 0.75rem;
  color: var(--primary-color);
  min-width: 20px;
}

.contact-form {
  background-color: white;
  border-radius: 0.5rem;
  padding: 2rem;
  box-shadow: var(--card-shadow);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.form-control {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #D1D5DB;
  border-radius: 0.25rem;
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
}

textarea.form-control {
  min-height: 150px;
  resize: vertical;
}

/* Footer */
footer {
  background-color: #1F2937;
  color: white;
  padding: 3rem 0 1rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  margin-bottom: 1rem;
}

.footer-logo img {
  height: 40px;
  margin-right: 0.5rem;
}

.footer-about p {
  color: #D1D5DB;
  margin-bottom: 1rem;
}

.footer-links h4 {
  margin-bottom: 1.25rem;
  font-size: 1.125rem;
}

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

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: #D1D5DB;
}

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

.social-links {
  display: flex;
  gap: 1rem;
}

.social-link {
  color: white;
  background-color: rgba(255, 255, 255, 0.1);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.social-link:hover {
  background-color: var(--primary-color);
  color: white;
  transform: translateY(-3px);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: #9CA3AF;
  font-size: 0.9rem;
}

/* Media Queries */
@media (max-width: 992px) {
  .about-content {
    grid-template-columns: 1fr;
  }
  
  .about-image {
    order: -1;
  }
}

@media (max-width: 768px) {
  header {
    padding: 0.75rem 0;
  }
  
  .menu-toggle {
    display: block;
  }
  
  nav ul {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--primary-color);
    flex-direction: column;
    padding: 1rem 0;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  }
  
  nav ul.show {
    display: flex;
  }
  
  nav li {
    margin: 0;
    text-align: center;
    padding: 0.75rem 0;
  }
  
  .hero {
    padding: 4rem 0;
  }
  
  .hero h2 {
    font-size: 2rem;
  }
  
  .hero p {
    font-size: 1rem;
  }
  
  .section-title {
    font-size: 1.75rem;
  }
}

@media (max-width: 576px) {
  .container {
    padding: 0 1rem;
  }
  
  .feature-card, .gaming-card, .contact-info, .contact-form {
    padding: 1.5rem;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
}