/* ===============================================================
   新しいヘッダー - 完全に洗練されたデザイン
   =============================================================== */

/* ヘッダー基本設定 */
.header-new {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  height: var(--header-height, 70px);
  background: rgba(255, 255, 255, 0.95); /* 変数化が難しい場合はこのまま */
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-gray-200, #e2e8f0);
  box-shadow: var(--shadow-md);
  z-index: 9999;
  transition: all var(--transition-normal, 0.3s);
  display: flex;
  align-items: center;
}

/* スクロール時のスタイル */
.header-new.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-lg);
  border-bottom: 1px solid var(--color-gray-200, #e2e8f0);
}

/* ヘッダーコンテナ */
.header-container-new {
  max-width: var(--max-width, 1280px);
  margin: 0 auto;
  padding: 0 var(--space-6, 24px);
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* ロゴ */
.logo-new {
  display: flex;
  align-items: center;
  gap: var(--space-3, 12px);
  text-decoration: none;
  font-weight: 800;
  font-size: var(--text-xl, 20px);
  color: var(--color-accent, #2563eb);
  transition: all var(--transition-normal, 0.3s);
}

.logo-new:hover {
  color: var(--color-accent-hover, #1d4ed8);
  transform: translateY(-1px);
}

.logo-icon-new {
  font-size: var(--text-2xl, 24px);
  background: linear-gradient(
    135deg,
    var(--color-blue-500, #3b82f6) 0%,
    var(--color-accent, #2563eb) 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo-text-new {
  font-family: var(--font-sans, "Inter", sans-serif);
  font-weight: 800;
  letter-spacing: -0.025em;
}

/* ナビゲーション */
.nav-new {
  display: flex;
  align-items: center;
  gap: var(--space-8, 32px);
}

.nav-link-new {
  display: flex;
  align-items: center;
  gap: var(--space-2, 8px);
  padding: var(--space-2, 8px) var(--space-4, 16px);
  text-decoration: none;
  color: var(--color-tertiary, #64748b);
  font-weight: 500;
  font-size: var(--text-sm, 14px);
  border-radius: var(--radius-lg, 8px);
  transition: all var(--transition-normal, 0.3s);
  position: relative;
}

.nav-link-new:hover {
  color: var(--color-accent, #2563eb);
  background: var(--bg-accent, rgba(59, 130, 246, 0.1));
  transform: translateY(-1px);
}

/* ドロップダウン */
.nav-dropdown-new {
  position: relative;
}

.dropdown-toggle-new {
  display: flex;
  align-items: center;
  gap: var(--space-2, 8px);
  padding: var(--space-2, 8px) var(--space-4, 16px);
  text-decoration: none;
  color: var(--color-tertiary, #64748b);
  font-weight: 500;
  font-size: var(--text-sm, 14px);
  border-radius: var(--radius-lg, 8px);
  transition: all var(--transition-normal, 0.3s);
  cursor: pointer;
  border: none;
  background: none;
}

.dropdown-toggle-new:hover {
  color: var(--color-accent, #2563eb);
  background: var(--bg-accent, rgba(59, 130, 246, 0.1));
}

.dropdown-arrow-new {
  transition: transform var(--transition-normal, 0.3s);
  margin-left: var(--space-1, 4px);
}

.nav-dropdown-new:hover .dropdown-arrow-new {
  transform: rotate(180deg);
}

.dropdown-menu-new {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--bg-primary, white);
  border: 1px solid var(--color-gray-200, #e2e8f0);
  border-radius: var(--radius-xl, 12px);
  box-shadow: var(--shadow-xl);
  padding: var(--space-2, 8px);
  min-width: 200px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition-normal, 0.3s);
  z-index: 10000;
}

.nav-dropdown-new:hover .dropdown-menu-new {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item-new {
  display: flex;
  align-items: center;
  gap: var(--space-3, 12px);
  padding: var(--space-3, 12px) var(--space-4, 16px);
  text-decoration: none;
  color: var(--color-secondary, #475569);
  font-weight: 500;
  font-size: var(--text-sm, 14px);
  border-radius: var(--radius-lg, 8px);
  transition: all var(--transition-normal, 0.3s);
  width: 100%;
}

.dropdown-item-new:hover {
  color: var(--color-accent, #2563eb);
  background: var(--bg-accent, rgba(59, 130, 246, 0.1));
  transform: translateY(-1px);
}

/* モバイルメニュー */
.menu-toggle-new {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  border-radius: var(--radius-lg, 8px);
  transition: background var(--transition-normal, 0.3s);
}

.menu-toggle-new:hover {
  background: var(--bg-accent, rgba(59, 130, 246, 0.1));
}

.menu-line-new {
  width: 20px;
  height: 2px;
  background: var(--color-tertiary, #64748b);
  border-radius: var(--radius-sm, 1px);
  transition: all var(--transition-normal, 0.3s);
  margin: 2px 0;
}

.menu-toggle-new.open .menu-line-new:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle-new.open .menu-line-new:nth-child(2) {
  opacity: 0;
}

.menu-toggle-new.open .menu-line-new:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* レスポンシブデザイン */
@media (max-width: 768px) {
  .header-container-new {
    padding: 0 var(--space-4, 16px);
  }

  .nav-new {
    display: none;
  }

  .menu-toggle-new {
    display: flex;
  }

  .nav-new.open {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-primary, white);
    border-top: 1px solid var(--color-gray-200, #e2e8f0);
    flex-direction: column;
    padding: var(--space-4, 16px);
    gap: var(--space-2, 8px);
    box-shadow: var(--shadow-lg);
  }

  .nav-link-new {
    justify-content: flex-start;
    padding: var(--space-3, 12px) var(--space-4, 16px);
    border-radius: var(--radius-lg, 8px);
  }

  .dropdown-menu-new {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    background: var(--bg-accent, rgba(59, 130, 246, 0.05));
    margin-top: var(--space-2, 8px);
  }
}

/* アニメーション */
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.header-new {
  animation: fadeInDown 0.6s ease-out;
}

/* フォーカス状態 */
.nav-link-new:focus,
.dropdown-toggle-new:focus,
.dropdown-item-new:focus,
.menu-toggle-new:focus {
  outline: 2px solid var(--color-accent, #2563eb);
  outline-offset: 2px;
}

/* アクセシビリティ */
@media (prefers-reduced-motion: reduce) {
  .header-new,
  .logo-new,
  .nav-link-new,
  .dropdown-toggle-new,
  .dropdown-menu-new,
  .dropdown-item-new,
  .menu-line-new {
    transition: none;
  }

  .header-new {
    animation: none;
  }
}

/* ダークモード対応 */
@media (prefers-color-scheme: dark) {
  .header-new {
    background: rgba(15, 23, 42, 0.95);
    border-bottom-color: var(--color-gray-700, #334155);
  }

  .header-new.scrolled {
    background: rgba(15, 23, 42, 0.98);
    border-bottom-color: var(--color-gray-700, #334155);
  }

  .logo-new {
    color: var(--color-blue-400, #60a5fa);
  }

  .logo-new:hover {
    color: var(--color-blue-300, #93c5fd);
  }

  .nav-link-new,
  .dropdown-toggle-new {
    color: var(--color-gray-300, #cbd5e1);
  }

  .nav-link-new:hover,
  .dropdown-toggle-new:hover {
    color: var(--color-blue-400, #60a5fa);
    background: rgba(96, 165, 250, 0.1);
  }

  .dropdown-menu-new {
    background: var(--color-gray-800, #1e293b);
    border-color: var(--color-gray-700, #334155);
  }

  .dropdown-item-new {
    color: var(--color-gray-300, #cbd5e1);
  }

  .dropdown-item-new:hover {
    color: var(--color-blue-400, #60a5fa);
    background: rgba(96, 165, 250, 0.1);
  }

  .menu-line-new {
    background: var(--color-gray-300, #cbd5e1);
  }
}