@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;700&family=Roboto:wght@400;700&display=swap");

:root {
  --primary-color: #007bff;
  --dark-color: #1a1a1a;
  --light-color: #f4f4f4;
  --background-color: #121212;
  --text-color: #e0e0e0;
}

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

body {
  font-family: "Noto Sans JP", sans-serif;
  background: var(--background-color);
  color: var(--text-color);
  line-height: 1.8;
}

a {
  text-decoration: none;
  color: var(--primary-color);
}

ul {
  list-style: none;
}

.container {
  max-width: 1100px;
  margin: auto;
  overflow: hidden;
  padding: 0 2rem;
}

/* Header */
.main-header {
  background: rgba(26, 26, 26, 0.9);
  padding: 1rem 0;
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  transition: background 0.3s ease;
}

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

.main-header .logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: #fff;
}

.main-nav ul {
  display: flex;
}

.main-nav ul li a {
  color: #fff;
  padding: 0.75rem 1rem;
  transition: color 0.3s ease;
}

.main-nav ul li a:hover,
.main-nav ul li.current a {
  color: var(--primary-color);
}

/* Hero Section */
.hero {
  height: 100vh;
  background: url("https://placehold.co/1920x1080/000000/FFFFFF?text=Welcome")
    no-repeat center center/cover;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  color: #ffffff;
  padding: 0 1rem;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  color: #3d89fc;
}

.hero p {
  font-size: 1.5rem;
  font-weight: bolder;
  margin-bottom: 2rem;
  color: #3d89fc;
}

.btn {
  display: inline-block;
  background: var(--primary-color);
  color: #fff;
  padding: 0.8rem 1.8rem;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  font-size: 1.1rem;
  transition: background 0.3s ease;
}

.btn:hover {
  background: #0056b3;
}

/* Sections */
.section {
  padding: 6rem 0;
}

.section-title {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: 4rem;
}

.head-line h2 a {
  text-align: center;
  background: var(--primary-color);
  margin: 0 auto;
}
/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.card {
  background: var(--dark-color);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease;
}

.card:hover {
  transform: translateY(-10px);
}

.card p {
  padding: 0 1.5rem;
  color: #aaa;
  font-weight: var(--background-color);
}
.card img {
  width: 100%;
  height: 100px;
  object-fit: fill;
}

.card-content {
  padding: 1.5rem;
}

.card-content h3 {
  margin-bottom: 1rem;
  color: #ffffff;
}

/* Contact Form */
.contact-form {
  max-width: 700px;
  margin: auto;
}

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

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

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.8rem;
  border: 1px solid #555;
  background: #333;
  color: #fff;
  border-radius: 5px;
}

/* Footer */
.main-footer {
  background: var(--dark-color);
  color: #aaa;
  text-align: center;
  padding: 2rem 0;
}

/* Responsive */
@media (max-width: 768px) {
  .main-header .logo {
    font-size: 1.2rem;
  }

  .main-nav {
    display: none; /* Hide for now, will be handled by JS */
  }

  .hero h1 {
    font-size: 2.5rem;
  }

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

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

.back-btn-container {
  text-align: center;
  margin-top: 3rem;
}