@charset "UTF-8";

/* ==========================================================================
   Reset & Base Styles
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  font-size: 16px;
}
body {
  font-family: 'Noto Sans JP', sans-serif;
  color: #333333;
  background-color: #f8fafc;
  line-height: 1.7;
  word-wrap: break-word;
}
a {
  color: inherit;
  text-decoration: none;
  transition: opacity 0.3s ease;
}
a:hover {
  opacity: 0.8;
}
ul {
  list-style: none;
}

/* ==========================================================================
   Layout
   ========================================================================== */
.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 20px;
}
.section {
  padding: 90px 0;
}
.section-header {
  text-align: center;
  margin-bottom: 50px;
}
.en-title {
  display: block;
  font-family: 'Poppins', sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: #16a34a;
  margin-bottom: 8px;
}
.jp-title {
  font-size: 2rem;
  font-weight: 700;
  color: #0d2b45;
}

/*================================================
          header
================================================*/
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 15px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  align-items: center;
}
.logo a {
  font-size: 1.4rem;
  font-weight: 700;
  color: #0d2b45;
  letter-spacing: 0.05em;
}
.nav-list {
  display: flex;
  align-items: center;
  gap: 25px;
}
.nav-list a {
  font-size: 0.95rem;
  font-weight: 500;
  color: #334155;
}
.btn-contact-nav {
  background-color: #0d2b45;
  color: #ffffff !important;
  padding: 8px 20px;
  border-radius: 50px;
  transition: background-color 0.3s ease;
}
.btn-contact-nav:hover {
  background-color: #16a34a;
}
/* ハンバーガーボタン */
.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 30px;
  height: 24px;
  position: relative;
  z-index: 1001;
}
.hamburger span {
  display: block;
  position: absolute;
  width: 100%;
  height: 2px;
  background-color: #0d2b45;
  transition: all 0.3s ease;
}
.hamburger span:nth-child(1) { top: 0; }
.hamburger span:nth-child(2) { top: 11px; }
.hamburger span:nth-child(3) { bottom: 0; }
.hamburger.is-active span:nth-child(1) {
  transform: translateY(11px) rotate(45deg);
}
.hamburger.is-active span:nth-child(2) {
  opacity: 0;
}
.hamburger.is-active span:nth-child(3) {
  transform: translateY(-11px) rotate(-45deg);
}

/*================================================
          footer
================================================*/
footer {
  background-color: #071727;
  color: #94a3b8;
  padding: 40px 0 20px;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 30px;
  border-bottom: 1px solid #1e293b;
  padding-bottom: 30px;
}
.footer-inner .icon {
  display: flex;
  align-items: center;
}
.footer-logo {
  font-size: 1.2rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 5px;
}
.footer-address {
  font-size: 0.85rem;
}
.footer-links {
  display: flex;
  gap: 20px;
}
.footer-links a {
  font-size: 0.9rem;
}
.copyright {
  text-align: center;
  font-size: 0.8rem;
}

/* ==========================================================================
   Responsive (Media Queries)
   ========================================================================== */
@media (max-width: 767px) {
  .pc-only {
    display: none;
  }
  .hamburger {
    display: block;
  }
  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background-color: #ffffff;
    padding: 80px 30px 30px;
    transition: right 0.3s ease;
    box-shadow: -5px 0 15px rgba(0,0,0,0.1);
  }
  .nav.is-active {
    right: 0;
  }
  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }
  .btn-contact-nav {
    display: inline-block;
    text-align: center;
    width: 100%;
    margin-top: 10px;
  }
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }

}