/* C3Works トップと同じナビゲーション (サイト本体 /style.css の .navbar 一式を写したもの)
 * サンプルの css/style.css とぶつからないよう、 すべて .c3nav の中だけに効かせる。
 * 本体のナビの見た目を変えたら、 ここも合わせて直す */
.c3nav {
  --c3-text-dark: #1e293b;
  --c3-primary: #6366f1;
  --c3-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  position: relative;
  z-index: 1000;
  background: #fff;
  box-shadow: 0 1px 8px rgba(0, 0, 0, 0.06);
  font-family: 'Noto Sans JP', 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.6;
}
.c3nav *, .c3nav *::before, .c3nav *::after { box-sizing: border-box; }
.c3nav-container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.c3nav-wrapper { display: flex; justify-content: space-between; align-items: center; padding: 0.8rem 0; }
.c3nav-logo a { display: inline-flex; }
.c3nav-logo img { height: 35px; width: auto; max-width: 150px; object-fit: contain; }

.c3nav-menu { display: flex; list-style: none; gap: 2.5rem; margin: 0; padding: 0; }
.c3nav-link {
  color: var(--c3-text-dark);
  text-decoration: none;
  font-weight: 500;
  position: relative;
  transition: color 0.2s ease;
}
.c3nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--c3-gradient);
  transition: width 0.3s ease;
}
.c3nav-link:hover { color: var(--c3-primary); text-decoration: none; }
.c3nav-link:hover::after { width: 100%; }

/* ハンバーガー (顔) */
.c3nav-hamburger {
  display: none;
  cursor: pointer;
  position: relative;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 3px solid rgba(30, 41, 59, 0.7);
  border-radius: 10px;
  background: #FAF5F0;
  transition: all 0.3s ease;
}
.c3nav-hamburger:hover { background: #F0EBE5; }
.c3nav-face { width: 100%; height: 100%; position: relative; }
.c3nav-eyes {
  position: absolute;
  top: 8px;
  left: 0;
  width: 100%;
  display: flex;
  justify-content: center;
  gap: 8px;
}
.c3nav-eye {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(30, 41, 59, 0.7);
  display: block;
  animation: c3nav-blink 4s ease-in-out infinite;
}
.c3nav-eye:last-child { animation-delay: 0.1s; }
.c3nav-mouth {
  position: absolute;
  bottom: 5px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  gap: 2px;
  transition: all 0.3s ease;
}
.c3nav-line {
  display: block;
  width: 14px;
  height: 2px;
  background: rgba(30, 41, 59, 0.7);
  border-radius: 1px;
  transition: all 0.3s ease;
}
.c3nav-hamburger.active { transform: rotate(10deg); border-color: #A78BFA; background: #EDE9FE; }
.c3nav-hamburger.active .c3nav-eye {
  width: 8px;
  height: 5px;
  background: transparent;
  border-top: 2px solid rgba(30, 41, 59, 0.7);
  border-radius: 50% 50% 0 0;
  animation: none;
}
.c3nav-hamburger.active .c3nav-line:nth-child(1) { transform: rotate(45deg) translate(3px, 3px); }
.c3nav-hamburger.active .c3nav-line:nth-child(2) { opacity: 0; }
.c3nav-hamburger.active .c3nav-line:nth-child(3) { transform: rotate(-45deg) translate(3px, -3px); }

@keyframes c3nav-blink {
  0%, 42%, 50%, 100% { transform: scaleY(1); }
  45% { transform: scaleY(0.1); }
}

@media (max-width: 1024px) {
  .c3nav-hamburger { display: flex; }

  /* top は開くときに JS でナビの下端に合わせる (スクロールしていても重ならないように) */
  .c3nav-menu {
    position: fixed;
    top: 60px;
    right: 0;
    width: 100%;
    height: calc(100vh - 60px);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    flex-direction: column;
    padding: 2rem 0;
    gap: 0;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease 0.35s;
    overflow: hidden;
  }
  .c3nav-menu.active { opacity: 1; pointer-events: auto; transition: opacity 0.2s ease; }

  .c3nav-menu li {
    position: relative;
    overflow: hidden;
    transition: transform 0.4s ease, opacity 0.3s ease;
  }
  .c3nav-menu.active li:nth-child(1) { transition-delay: 0.05s; }
  .c3nav-menu.active li:nth-child(2) { transition-delay: 0.1s; }
  .c3nav-menu.active li:nth-child(3) { transition-delay: 0.15s; }
  .c3nav-menu.active li:nth-child(4) { transition-delay: 0.2s; }
  .c3nav-menu.active li:nth-child(5) { transition-delay: 0.25s; }
  .c3nav-menu:not(.active) li:nth-child(5) { transition-delay: 0.1s; }
  .c3nav-menu:not(.active) li:nth-child(4) { transition-delay: 0.15s; }
  .c3nav-menu:not(.active) li:nth-child(3) { transition-delay: 0.2s; }
  .c3nav-menu:not(.active) li:nth-child(2) { transition-delay: 0.25s; }
  .c3nav-menu:not(.active) li:nth-child(1) { transition-delay: 0.3s; }

  .c3nav-menu li .c3nav-link {
    display: block;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    color: #fff;
    text-align: center;
  }
  .c3nav-menu li .c3nav-link::after { display: none; }
  .c3nav-menu li .c3nav-link:hover { color: #fff; opacity: 0.8; }

  .c3nav-menu li:nth-child(1) { background: #60A5FA; transform: translateX(100%) rotate(-2deg); }
  .c3nav-menu li:nth-child(2) { background: #34D399; transform: translateX(100%) rotate(1.5deg); }
  .c3nav-menu li:nth-child(3) { background: #F87171; transform: translateX(100%) rotate(-3deg); }
  .c3nav-menu li:nth-child(4) { background: #F59E0B; transform: translateX(100%) rotate(2deg); }
  .c3nav-menu li:nth-child(5) { background: #A78BFA; transform: translateX(100%) rotate(-1deg); }
  .c3nav-menu.active li:nth-child(1) { transform: translateX(0) translateY(0px) rotate(-2deg); }
  .c3nav-menu.active li:nth-child(2) { transform: translateX(0) translateY(8px) rotate(1.5deg); }
  .c3nav-menu.active li:nth-child(3) { transform: translateX(0) translateY(16px) rotate(-3deg); }
  .c3nav-menu.active li:nth-child(4) { transform: translateX(0) translateY(24px) rotate(2deg); }
  .c3nav-menu.active li:nth-child(5) { transform: translateX(0) translateY(32px) rotate(-1deg); }
}

@media print {
  .c3nav { display: none; }
}