/* ======================================
  真珠科学研究所システム - 統合CSS
  Pearl Scientific Research Institute System
========================================= */

/* ======================================
  CSS変数（カスタムプロパティ）
========================================= */
:root {
  /* カラーパレット */
  --color-primary: #667eea;
  --color-primary-dark: #764ba2;
  --color-secondary: #4d4870;
  --color-accent: #a6e0f3;
  --color-success: #51cf66;
  --color-warning: #ffd43b;
  --color-error: #ff6b6b;
  
  /* 背景色 */
  --bg-primary: #f4f8fc;
  --bg-card: rgba(255, 255, 255, 0.94);
  --bg-overlay: rgba(255, 255, 255, 0.91);
  
  /* テキスト色 */
  --text-primary: #36405a;
  --text-secondary: #746fa8;
  --text-muted: #8c82a8;
  --text-light: #bcb6ca;
  
  /* ボーダー */
  --border-color: #e6e0fd;
  --border-color-light: #eee6f6;
  --border-color-focus: #7dc8e5;
  
  /* シャドウ */
  --shadow-sm: 0 2px 8px rgba(215, 202, 255, 0.17);
  --shadow-md: 0 8px 30px rgba(217, 209, 241, 0.33);
  --shadow-lg: 0 14px 56px rgba(168, 184, 224, 0.71);
  
  /* フォント */
  --font-family: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
  --font-family-serif: 'EB Garamond', 'Times New Roman', '游明朝', 'Yu Mincho', serif;
  
  /* スペーシング */
  --spacing-xs: 0.25rem;   /* 4px */
  --spacing-sm: 0.5rem;    /* 8px */
  --spacing-md: 1rem;      /* 16px */
  --spacing-lg: 1.5rem;    /* 24px */
  --spacing-xl: 2rem;      /* 32px */
  --spacing-2xl: 3rem;     /* 48px */
  
  /* レイアウト */
  --container-max-width: 1200px;
  --border-radius-sm: 7px;
  --border-radius-md: 13px;
  --border-radius-lg: 20px;
  --border-radius-xl: 32px;
}

/* ======================================
  リセット & ベース
========================================= */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family);
  color: var(--text-primary);
  background: var(--bg-primary);
  line-height: 1.6;
  min-height: 100vh;
  margin: 0;
  position: relative;
}

/* ======================================
  背景アニメーション - 噴水効果
========================================= */
.fountain-bg {
  position: fixed;
  z-index: 0;
  width: 100vw;
  height: 100vh;
  top: 0;
  left: 0;
  pointer-events: none;
}

.fountain-stream {
  position: absolute;
  bottom: -300px;
  left: 50%;
  width: 32vw;
  max-width: 440px;
  min-width: 260px;
  height: 180vh;
  transform: translateX(-50%);
  opacity: 0.30;
  filter: blur(14px);
  border-radius: 45% 55% 60% 40% / 60% 40% 65% 35%;
  animation: fountain-up 7s cubic-bezier(0.45, 0.07, 0.62, 1.01) infinite;
  background: linear-gradient(180deg, #a6e0f3 5%, #f7eaff 55%, #d1e3ff 95%);
  background-size: 100% 200%;
  box-shadow: 0 0 48px 12px #badcf855;
}

.fountain-stream:nth-child(2) {
  left: 40%;
  width: 18vw;
  max-width: 300px;
  opacity: 0.22;
  animation-delay: 2s;
  background: linear-gradient(180deg, #ffdfff 10%, #c1f5fc 65%, #fffbe6 100%);
  filter: blur(19px);
}

.fountain-stream:nth-child(3) {
  left: 62%;
  width: 22vw;
  max-width: 340px;
  opacity: 0.25;
  animation-delay: 4s;
  background: linear-gradient(180deg, #c6fffa 0%, #fbefff 95%, #fff 100%);
  filter: blur(21px);
}

@keyframes fountain-up {
  0% { transform: translateX(-50%) scaleX(1) scaleY(1) translateY(0); }
  30% { transform: translateX(-48%) scaleX(1.07) scaleY(1.12) translateY(-12vh); }
  60% { transform: translateX(-52%) scaleX(0.97) scaleY(1.05) translateY(-23vh); }
  100% { transform: translateX(-50%) scaleX(1) scaleY(1) translateY(-100vh); }
}

/* ======================================
  真珠背景アニメーション
========================================= */
.pearl {
  position: absolute;
  z-index: 1;
  pointer-events: none;
  filter: drop-shadow(0 6px 18px #b7d6ff88) blur(0.3px);
  opacity: 0.77;
  transition: filter 0.5s;
  will-change: left, top;
}

.pearl:hover {
  filter: drop-shadow(0 6px 38px #ecf7ff) blur(0.7px) brightness(1.09);
}

/* ======================================
  レイアウトコンポーネント
========================================= */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.container--narrow {
  max-width: 800px;
}

.container--wide {
  max-width: 1400px;
}

/* ======================================
  カードコンポーネント
========================================= */
.card {
  background: var(--bg-card);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-xl);
  border: 2px solid var(--border-color);
  position: relative;
  z-index: 3;
}

.card--login {
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(5px) saturate(1.2);
  border: 1.8px solid #e5e8f0;
  min-width: 410px;
  max-width: 420px;
}

.card--form {
  max-width: 1120px;
  margin: 18px auto 10px auto;
  min-height: 640px;
  overflow: visible;
}

.card--menu-item {
  background: white;
  border-radius: var(--border-radius-md);
  padding: 25px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
  transition: all 0.3s;
  text-decoration: none;
  color: inherit;
  border: 2px solid transparent;
}

.card--menu-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
  border-color: var(--color-primary);
}

/* カードのオーロラエフェクト */
.card--form::before {
  content: '';
  position: absolute;
  left: 7%;
  top: -12%;
  width: 86%;
  height: 110px;
  background: radial-gradient(ellipse at center, #edd4fd26 0%, #e6f3fc22 70%, transparent 100%);
  filter: blur(10px);
  opacity: 0.25;
  pointer-events: none;
  z-index: 1;
}

.card--form::after {
  content: '';
  position: absolute;
  right: -8%;
  bottom: 0;
  width: 30%;
  height: 100px;
  background: linear-gradient(90deg, #ffeef7bb 0%, #dcf8fa99 80%, transparent 100%);
  filter: blur(17px);
  opacity: 0.18;
  pointer-events: none;
  z-index: 1;
}

/* ======================================
  ボタンコンポーネント
========================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: var(--border-radius-md);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.3s;
  font-family: inherit;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.btn--secondary {
  background: linear-gradient(90deg, #f9fcff 0%, #faf5fc 100%);
  border: 1.6px solid #baa7e5;
  color: var(--text-secondary);
}

.btn--secondary:hover {
  background: linear-gradient(90deg, #f5faff 0%, #ecdffc 100%);
  box-shadow: 0 3px 12px #b2c6f733;
}

.btn--login {
  width: 100%;
  padding: 15px 0;
  background: linear-gradient(90deg, #93bccb 0%, #b1c5fc 40%, #e9dcff 100%);
  font-size: 20px;
  color: #222;
  font-weight: bold;
  box-shadow: 0 2px 18px #a7b2c925;
}

.btn--login:hover {
  background: linear-gradient(90deg, #9ed0e6 0%, #efcafc 100%);
  transform: scale(1.03);
}

.btn--logout {
  background: rgba(255, 255, 255, 0.2);
  color: white;
  border: none;
  padding: 8px 16px;
  border-radius: 5px;
}

.btn--logout:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* ======================================
  フォームコンポーネント
========================================= */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  font-weight: 800;
  color: var(--text-secondary);
  font-size: 1.08em;
  margin-bottom: 3px;
}

.form-input,
.form-select {
  width: 100%;
  padding: 9px 10px;
  border: 1.2px solid #c6b4e2;
  border-radius: var(--border-radius-sm);
  background: #fcfcfe;
  font-size: 1.06em;
  box-shadow: 0 2px 5px #ebe7f907;
  transition: border-color 0.14s, box-shadow 0.14s;
  font-family: inherit;
}

.form-input--login {
  padding: 15px 13px;
  margin-bottom: 22px;
  border: 1.7px solid #b3bed7;
  border-radius: 11px;
  font-size: 18px;
  background: rgba(255, 255, 255, 0.85);
  box-shadow: 0 1px 8px #cfe3fd12 inset;
}

.form-input:focus,
.form-select:focus,
.form-input--login:focus {
  border-color: var(--border-color-focus);
  outline: none;
  box-shadow: 0 2px 12px #f2eeff0a;
}

.form-input--login:focus {
  box-shadow: 0 2px 22px #b2e2fa26;
}

/* ======================================
  メッセージコンポーネント
========================================= */
.message {
  padding: 11px 12px;
  border-radius: var(--border-radius-sm);
  margin-bottom: 10px;
  font-weight: 600;
}

.message--error {
  background: #fff5f8;
  border: 1.3px solid #f6bdd4;
  color: #b82d4c;
}

.message--success {
  background: #f6fffc;
  border: 1.1px solid #bbe7e3;
  color: #21877e;
}

.message--logout {
  background: var(--color-success);
  color: white;
  text-align: center;
}

/* ======================================
  ヘッダーコンポーネント
========================================= */
.header {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
  padding: 20px 0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

.header__title {
  font-size: 28px;
  font-weight: bold;
}

.header__user {
  display: flex;
  align-items: center;
  gap: 20px;
}

.header__user-detail {
  text-align: right;
}

.header__user-name {
  font-weight: bold;
  font-size: 16px;
}

.header__user-group {
  font-size: 14px;
  opacity: 0.9;
}

/* ======================================
  タイトルコンポーネント
========================================= */
.title {
  font-family: var(--font-family-serif);
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.title--main {
  font-size: 2.6em;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: #191919;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.15), 0 2px 4px rgba(0, 0, 0, 0.08);
  margin: 24px 0 16px;
}

.title--login {
  margin-bottom: 38px;
  letter-spacing: 0.15em;
  color: var(--color-secondary);
  background: linear-gradient(90deg, var(--color-accent) 0%, #ece7fa 80%);
  padding: 20px 0;
  border-radius: 14px;
  font-weight: 700;
  box-shadow: 0 2px 12px #cde5ff25;
  font-size: 1.52rem;
}

.title--section {
  font-size: 20px;
  color: #333;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-primary);
}

.title__subtitle {
  display: block;
  margin-top: 0.4em;
  font-family: var(--font-family-serif);
  font-weight: 500;
  font-size: 1.11em;
  letter-spacing: 0.18em;
  background: linear-gradient(90deg, #d1f5ff 10%, #f7d1fd 45%, #e7f7d3 70%, #ffe9e7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.87;
  filter: blur(0.2px) brightness(1.08) drop-shadow(0 2px 8px #eaf4ff70);
  font-style: italic;
  pointer-events: none;
}

/* ======================================
  グリッドコンポーネント
========================================= */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid--menu {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.grid--form {
  grid-template-columns: repeat(3, 1fr);
  gap: 19px;
  margin-bottom: 8px;
  position: relative;
  z-index: 2;
}

.grid--columns {
  display: flex;
  gap: 18px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ======================================
  カラムコンポーネント
========================================= */
.column {
  flex: 1;
  background: linear-gradient(125deg, #fafcff 0%, #f7f3fa 100%);
  border-radius: var(--border-radius-md);
  padding: 16px 11px 22px;
  box-shadow: 0 2px 12px #bfb5df0a;
  border: 1.1px solid var(--border-color-light);
  display: flex;
  flex-direction: column;
}

/* ======================================
  メニューコンポーネント
========================================= */
.menu-section {
  margin-bottom: 40px;
}

.menu-icon {
  font-size: 40px;
  margin-bottom: 15px;
  display: block;
}

.menu-title {
  font-size: 18px;
  font-weight: bold;
  color: #333;
  margin-bottom: 10px;
}

.menu-description {
  color: #666;
  font-size: 14px;
}

/* ======================================
  ウェルカムメッセージ
========================================= */
.welcome {
  background: white;
  border-radius: var(--border-radius-md);
  padding: 30px;
  margin-bottom: 40px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
  text-align: center;
}

.welcome__title {
  color: #333;
  margin-bottom: 10px;
}

.welcome__time {
  color: #666;
  font-size: 14px;
}

/* ======================================
  ナビゲーション固定
========================================= */
.fixed-nav {
  position: fixed;
  top: 160px;
  left: 30px;
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.nav-btn {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 53px;
  height: auto;
  text-decoration: none;
  background: linear-gradient(135deg, #6b46c1, #8b5cf6);
  color: #fff;
  font-size: 1.09em;
  font-weight: 700;
  padding: 14px 6px;
  border-radius: 18px;
  box-shadow: 0 4px 15px rgba(107, 70, 193, 0.4);
  border: 2px solid rgba(139, 92, 246, 0.3);
  cursor: pointer;
  writing-mode: vertical-rl;
  letter-spacing: 0.1em;
  margin-bottom: 2px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-btn--secondary {
  background: linear-gradient(135deg, #7c3aed, #a855f7);
  border: 2px solid rgba(168, 85, 247, 0.3);
  box-shadow: 0 4px 15px rgba(124, 58, 237, 0.4);
}

.nav-btn:hover {
  background: linear-gradient(135deg, #f8fafc, #f1f5f9);
  color: #6b46c1;
  border: 2px solid #8b5cf6;
  transform: translateX(8px) scale(1.05);
  box-shadow: 0 8px 25px rgba(107, 70, 193, 0.5);
}

.nav-btn--secondary:hover {
  background: linear-gradient(135deg, #f8fafc, #f1f5f9);
  color: #7c3aed;
  border: 2px solid #a855f7;
  transform: translateX(8px) scale(1.05);
  box-shadow: 0 8px 25px rgba(124, 58, 237, 0.5);
}

/* ======================================
  検索バーコンポーネント
========================================= */
.search-bar {
  display: flex;
  gap: 28px;
  align-items: center;
  background: linear-gradient(90deg, #f3f8ff 0%, #f9f7ff 100%);
  border-radius: 19px;
  box-shadow: 0 1px 8px #e5d7fa09;
  padding: 12px 19px;
  margin-bottom: 20px;
  font-size: 1.13em;
  border: 2px solid var(--border-color);
  justify-content: center;
}

.search-group {
  display: flex;
  align-items: center;
  gap: 7px;
}

/* ======================================
  ユーティリティクラス
========================================= */
/* テキスト配置 */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* フォントウェイト */
.font-light { font-weight: 300; }
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.font-extrabold { font-weight: 800; }

/* フォントサイズ */
.text-xs { font-size: 0.75rem; }
.text-sm { font-size: 0.875rem; }
.text-base { font-size: 1rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.text-3xl { font-size: 1.875rem; }

/* レターススペーシング */
.letter-tight { letter-spacing: -0.025em; }
.letter-normal { letter-spacing: 0; }
.letter-wide { letter-spacing: 0.025em; }
.letter-wider { letter-spacing: 0.05em; }
.letter-widest { letter-spacing: 0.1em; }

/* 行間 */
.leading-tight { line-height: 1.25; }
.leading-normal { line-height: 1.5; }
.leading-relaxed { line-height: 1.625; }
.leading-loose { line-height: 2; }

/* スペーシング */
.m-0 { margin: 0; }
.m-auto { margin: auto; }
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-6 { margin-top: var(--spacing-xl); }
.mt-8 { margin-top: var(--spacing-2xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-6 { margin-bottom: var(--spacing-xl); }
.mb-8 { margin-bottom: var(--spacing-2xl); }

.p-0 { padding: 0; }
.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-3 { padding: var(--spacing-md); }
.p-4 { padding: var(--spacing-lg); }
.p-6 { padding: var(--spacing-xl); }
.p-8 { padding: var(--spacing-2xl); }

/* Display */
.hidden { display: none; }
.block { display: block; }
.inline { display: inline; }
.inline-block { display: inline-block; }
.flex { display: flex; }
.grid { display: grid; }

/* Flexbox */
.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }

/* Border Radius */
.rounded-sm { border-radius: var(--border-radius-sm); }
.rounded { border-radius: var(--border-radius-md); }
.rounded-lg { border-radius: var(--border-radius-lg); }
.rounded-xl { border-radius: var(--border-radius-xl); }
.rounded-full { border-radius: 50%; }

/* ======================================
  レスポンシブデザイン
========================================= */
@media (max-width: 1200px) {
  .grid--columns { gap: 12px; }
  .column { min-width: 160px; max-width: 230px; flex: 1 1 30%; }
}

@media (max-width: 900px) {
  .grid--columns { gap: 6px; }
  .column { min-width: 145px; max-width: 200px; flex: 1 1 45%; }
  .title--main { font-size: 1.35rem; }
  .grid--form { grid-template-columns: 1fr; }
}

@media (max-width: 700px) {
  .grid--columns { flex-direction: column; }
  .column { min-width: unset; max-width: 98vw; flex: 1 1 98vw; }
  .card--form { padding: 16px; }
  .card--login { min-width: 300px; padding: 40px 30px; }
  .fixed-nav { left: 15px; top: 120px; }
  .container { padding: 0 var(--spacing-md); }
}

/* ======================================
  スムーススクロール
========================================= */
html {
  scroll-behavior: smooth;
}

/* ======================================
  プリント対応
========================================= */
@media print {
  .fountain-bg,
  .pearl,
  .fixed-nav,
  .btn--logout {
    display: none !important;
  }
  
  .card {
    box-shadow: none;
    border: 1px solid #ccc;
  }
}

/* ======================================
  アクセシビリティ
========================================= */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* フォーカス表示 */
.btn:focus,
.form-input:focus,
.form-select:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ======================================
  ダークモード対応（将来拡張用）
========================================= */
@media (prefers-color-scheme: dark) {
  /* ダークモード時の変数上書き（将来実装） */
  /*
  :root {
    --bg-primary: #1a202c;
    --text-primary: #e2e8f0;
    --bg-card: rgba(45, 55, 72, 0.9);
  }
  */
}

/* ===== フォーム変更警告のスタイル ===== */

/* 変更検知インジケーター */
.form-changed-indicator {
    position: fixed;
    top: 10px;
    right: 10px;
    background: #ff6b6b;
    color: white;
    padding: 5px 10px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: 600;
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.form-changed-indicator.show {
    opacity: 1;
}

/* 変更されたフィールドのハイライト */
.form-field--changed {
    border-left: 3px solid #ff6b6b !important;
    background: rgba(255, 107, 107, 0.05) !important;
}

/* 権限表示バッジ（ユーザー情報横） */
.permission-badge {
    display: inline-block !important;
    background: rgba(255, 255, 255, 0.2) !important;
    color: white !important;
    padding: 4px 8px !important;
    border-radius: 12px !important;
    font-size: 11px !important;
    margin-left: 8px !important;
    font-weight: 500 !important;
}

/* ======================================
  統一ヘッダーコンポーネント
========================================= */
.unified-header {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
  padding: 15px 0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.unified-header .header__content {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.unified-header .header__title {
  font-size: 28px;
  font-weight: bold;
  display: flex;
  align-items: center;
  gap: 10px;
}

.unified-header .header__icon {
  font-size: 28px;
}

.unified-header .header__subtitle {
  font-size: 18px;
  font-weight: normal;
  opacity: 0.9;
}

.unified-header .header__user {
  display: flex;
  align-items: center;
  gap: 20px;
}

.unified-header .header__user-detail {
  text-align: right;
}

.unified-header .header__user-name {
  font-weight: bold;
  font-size: 16px;
}

.unified-header .header__user-group {
  font-size: 14px;
  opacity: 0.9;
}

/* メニューボタン */
.btn--menu {
  background: rgba(255, 255, 255, 0.2);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.3);
  padding: 8px 16px;
  border-radius: 5px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: all 0.3s;
  font-size: 14px;
}

.btn--menu:hover {
  background: rgba(255, 255, 255, 0.3);
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-1px);
}

/* アイコン */
.icon-menu::before {
  content: "☰";
  font-size: 18px;
  margin-right: 5px;
}

.icon-logout::before {
  content: "⮌";
  font-size: 18px;
  margin-right: 5px;
}

.icon-warning::before {
  content: "⚠";
  font-size: 18px;
  margin-right: 5px;
}