/* ========================================
   チーム島田 共通デザインシステム
   ======================================== */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500;600;700&family=Outfit:wght@300;400;500;600;700&display=swap');

:root {
  /* カラーパレット */
  --color-bg: #0a0c10;
  --color-bg-2: #111520;
  --color-bg-3: #161b27;
  --color-surface: rgba(255,255,255,0.04);
  --color-surface-hover: rgba(255,255,255,0.08);
  --color-border: rgba(255,255,255,0.08);
  --color-border-active: rgba(99,179,237,0.4);

  --color-primary: #4f9cf9;
  --color-primary-dark: #2d7dd2;
  --color-primary-glow: rgba(79,156,249,0.2);
  --color-accent: #7c6dfa;
  --color-accent-glow: rgba(124,109,250,0.2);
  --color-gold: #f5c842;
  --color-gold-glow: rgba(245,200,66,0.15);

  --color-success: #38d9a9;
  --color-warning: #ffd43b;
  --color-danger: #ff6b6b;

  --color-text: #e8edf5;
  --color-text-2: #9ba8bd;
  --color-text-3: #5d6a82;

  /* タイポグラフィ */
  --font-sans: 'Outfit', 'Noto Sans JP', sans-serif;

  /* スペーシング */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 40px;
  --space-2xl: 64px;

  /* ボーダー */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  /* シャドウ */
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.5);
  --shadow-primary: 0 4px 20px rgba(79,156,249,0.25);
  --shadow-accent: 0 4px 20px rgba(124,109,250,0.25);

  /* トランジション */
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ベーススタイル */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  min-height: 100vh;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; outline: none; font-family: inherit; }
input, textarea, select { font-family: inherit; outline: none; }

/* スクロールバー */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--color-bg-2); }
::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: var(--color-text-3); }

/* ========================================
   共通ナビゲーション
   ======================================== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: 64px;
  background: rgba(10,12,16,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  padding: 0 var(--space-xl);
  gap: var(--space-xl);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--color-text);
  white-space: nowrap;
}

.nav__logo-icon {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  flex: 1;
}

.nav__link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-2);
  transition: color var(--transition), background var(--transition);
}

.nav__link:hover,
.nav__link.active {
  color: var(--color-text);
  background: var(--color-surface);
}

.nav__link.active {
  color: var(--color-primary);
  background: var(--color-primary-glow);
}

.nav__link-icon { font-size: 16px; }

.nav__right {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav__user {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 6px 12px;
  border-radius: var(--radius-full);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: background var(--transition);
  text-decoration: none;
  color: var(--color-text);
}

.nav__user:hover { background: var(--color-surface-hover); }

.nav__user-avatar {
  width: 28px; height: 28px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--color-bg-3);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}

.nav__user-name {
  font-size: 0.8rem;
  font-weight: 500;
  max-width: 100px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* メインコンテンツ */
.main {
  padding-top: 64px;
  min-height: 100vh;
}

/* ========================================
   共通コンポーネント
   ======================================== */

/* ボタン */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  transition: all var(--transition);
  white-space: nowrap;
  letter-spacing: 0.02em;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: white;
  box-shadow: var(--shadow-primary);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(79,156,249,0.4);
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-outline:hover {
  background: var(--color-surface);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-2);
}
.btn-ghost:hover {
  background: var(--color-surface);
  color: var(--color-text);
}

.btn-danger {
  background: rgba(255,107,107,0.15);
  color: var(--color-danger);
  border: 1px solid rgba(255,107,107,0.3);
}
.btn-danger:hover { background: rgba(255,107,107,0.25); }

.btn-sm { padding: 6px 14px; font-size: 0.8rem; }
.btn-lg { padding: 14px 32px; font-size: 1rem; }
.btn-icon { padding: 8px; border-radius: var(--radius-sm); }

/* カード */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: all var(--transition);
}
.card:hover {
  background: var(--color-surface-hover);
  border-color: rgba(255,255,255,0.12);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* バッジ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}
.badge-primary { background: var(--color-primary-glow); color: var(--color-primary); border: 1px solid rgba(79,156,249,0.2); }
.badge-accent { background: var(--color-accent-glow); color: var(--color-accent); border: 1px solid rgba(124,109,250,0.2); }
.badge-gold { background: var(--color-gold-glow); color: var(--color-gold); border: 1px solid rgba(245,200,66,0.2); }
.badge-success { background: rgba(56,217,169,0.15); color: var(--color-success); border: 1px solid rgba(56,217,169,0.2); }
.badge-warning { background: rgba(255,212,59,0.15); color: var(--color-warning); border: 1px solid rgba(255,212,59,0.2); }
.badge-danger { background: rgba(255,107,107,0.15); color: var(--color-danger); border: 1px solid rgba(255,107,107,0.2); }
.badge-gray { background: rgba(255,255,255,0.08); color: var(--color-text-2); border: 1px solid var(--color-border); }

/* フォーム */
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-label { font-size: 0.85rem; font-weight: 600; color: var(--color-text-2); letter-spacing: 0.03em; }
.form-input,
.form-textarea,
.form-select {
  background: var(--color-bg-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  font-size: 0.9rem;
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}
.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-glow);
}
.form-input::placeholder,
.form-textarea::placeholder { color: var(--color-text-3); }
.form-textarea { resize: vertical; min-height: 100px; }
.form-select { cursor: pointer; }
.form-select option { background: var(--color-bg-2); }

/* セクションタイトル */
.section-title {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-text);
}
.section-subtitle {
  font-size: 0.9rem;
  color: var(--color-text-2);
  margin-top: 4px;
}

/* グラスカード */
.glass {
  background: rgba(255,255,255,0.04);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
}

/* ページヘッダー */
.page-header {
  padding: var(--space-2xl) var(--space-xl) var(--space-xl);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

/* グリッドレイアウト */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

/* ローディング */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-2xl);
}
.spinner {
  width: 40px; height: 40px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* トースト通知 */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}
.toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  background: var(--color-bg-3);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  font-size: 0.875rem;
  font-weight: 500;
  animation: toastIn 0.3s ease;
  pointer-events: auto;
  min-width: 260px;
  max-width: 380px;
}
.toast-success { border-left: 3px solid var(--color-success); }
.toast-error { border-left: 3px solid var(--color-danger); }
.toast-info { border-left: 3px solid var(--color-primary); }
@keyframes toastIn {
  from { opacity: 0; transform: translateY(16px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* 出欠ボタン */
.attendance-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 600;
  border: 1.5px solid transparent;
  transition: all var(--transition);
  cursor: pointer;
  background: transparent;
}
.attendance-btn.attend {
  border-color: rgba(56,217,169,0.3);
  color: var(--color-text-2);
}
.attendance-btn.attend:hover,
.attendance-btn.attend.active {
  background: rgba(56,217,169,0.15);
  border-color: var(--color-success);
  color: var(--color-success);
}
.attendance-btn.pending {
  border-color: rgba(255,212,59,0.3);
  color: var(--color-text-2);
}
.attendance-btn.pending:hover,
.attendance-btn.pending.active {
  background: rgba(255,212,59,0.15);
  border-color: var(--color-warning);
  color: var(--color-warning);
}
.attendance-btn.absent {
  border-color: rgba(255,107,107,0.3);
  color: var(--color-text-2);
}
.attendance-btn.absent:hover,
.attendance-btn.absent.active {
  background: rgba(255,107,107,0.15);
  border-color: var(--color-danger);
  color: var(--color-danger);
}

/* モーダル */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}
.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}
.modal {
  background: var(--color-bg-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.95);
  transition: transform var(--transition);
}
.modal-overlay.open .modal { transform: scale(1); }
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-lg);
}
.modal-title { font-size: 1.1rem; font-weight: 700; }
.modal-close {
  width: 32px; height: 32px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--color-surface);
  color: var(--color-text-2);
  font-size: 18px;
  cursor: pointer;
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}
.modal-close:hover { background: var(--color-surface-hover); color: var(--color-text); }

/* タブ */
.tabs {
  display: flex;
  gap: 4px;
  padding: 4px;
  background: var(--color-bg-2);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow-x: auto;
}
.tab-btn {
  padding: 8px 18px;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-2);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.tab-btn:hover { color: var(--color-text); background: var(--color-surface); }
.tab-btn.active {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: white;
  box-shadow: var(--shadow-primary);
}

/* 区切り線 */
.divider { border: none; border-top: 1px solid var(--color-border); margin: var(--space-lg) 0; }

/* テキストユーティリティ */
.text-primary { color: var(--color-primary); }
.text-accent { color: var(--color-accent); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-danger { color: var(--color-danger); }
.text-muted { color: var(--color-text-2); }
.text-xs { font-size: 0.75rem; }
.text-sm { font-size: 0.875rem; }
.text-lg { font-size: 1.1rem; }
.text-xl { font-size: 1.3rem; }
.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }

/* レスポンシブ */
@media (max-width: 768px) {
  .nav { padding: 0 var(--space-md); gap: var(--space-md); }
  .nav__links { display: none; }
  .nav__user-name { display: none; }
  .page-header {
    padding: var(--space-lg) var(--space-md) var(--space-sm);
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }
  .container { padding: 0 var(--space-md); }
  .section-title { font-size: 1.25rem; }
  .main { padding-bottom: 80px; } /* ボトムナビ分 */
}

/* フェードイン */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.fade-in { animation: fadeInUp 0.4s ease both; }
.fade-in-delay-1 { animation-delay: 0.1s; }
.fade-in-delay-2 { animation-delay: 0.2s; }
.fade-in-delay-3 { animation-delay: 0.3s; }

/* 空状態 */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-2xl);
  color: var(--color-text-3);
  text-align: center;
}
.empty-state-icon { font-size: 48px; opacity: 0.5; }
.empty-state-text { font-size: 0.9rem; }

/* ========================================
   スマホ用ボトムナビゲーション
   ======================================== */
.bottom-nav {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 200;
  background: rgba(10,12,16,0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--color-border);
  padding: 8px 0 max(8px, env(safe-area-inset-bottom));
}
.bottom-nav__items {
  display: flex;
  justify-content: space-around;
  align-items: center;
}
.bottom-nav__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 6px 12px;
  border-radius: var(--radius-md);
  color: var(--color-text-3);
  text-decoration: none;
  font-size: 0.65rem;
  font-weight: 600;
  transition: all var(--transition);
  min-width: 56px;
  background: transparent;
  border: none;
  cursor: pointer;
  font-family: inherit;
}
.bottom-nav__item.active { color: var(--color-primary); }
.bottom-nav__item-icon { font-size: 1.4rem; line-height: 1; }
@media (max-width: 768px) {
  .bottom-nav { display: block; }
}

/* ========================================
   スマホ専用レイアウト調整
   ======================================== */
/* スケジュールカードのスマホ対応 */
@media (max-width: 768px) {
  .event-card {
    grid-template-columns: 1fr !important;
    gap: var(--space-md) !important;
    padding: var(--space-md) !important;
  }
  .event-card__right {
    align-items: flex-start !important;
    flex-direction: row !important;
    flex-wrap: wrap !important;
  }
  .attendance-actions {
    display: flex;
    gap: 6px;
  }
  .attendance-btn { padding: 8px 12px; font-size: 0.8rem; }

  /* マイページ */
  .mypage-layout { grid-template-columns: 1fr !important; }
  .mypage-preview { position: static !important; }
  .form-grid { grid-template-columns: 1fr !important; }
  .mypage-form { padding: var(--space-md) !important; }

  /* メンバーグリッド */
  .members-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: var(--space-sm) !important;
  }
  .members-toolbar { flex-direction: column; align-items: stretch; }
  .search-box { width: 100%; }
  .search-box__input { width: 100% !important; }

  /* 管理者ページ */
  .admin-list-item { flex-direction: column; align-items: flex-start !important; }
  .admin-tabs { flex-wrap: wrap; }
  .tab-btn { padding: 6px 12px; font-size: 0.78rem; }

  /* モーダル */
  .modal { padding: var(--space-md) !important; margin: 0 var(--space-sm); }

  /* ヒーローカード */
  .hero__nav-cards { grid-template-columns: 1fr !important; }
  .hero-card { flex-direction: row; justify-content: flex-start; gap: var(--space-md); padding: var(--space-md); }
  .hero-card__icon { font-size: 1.5rem; }
  .hero-card__desc { display: none; }

  /* メンバー選択 */
  .member-select-grid { grid-template-columns: repeat(3, 1fr) !important; }

  /* トースト */
  .toast-container { bottom: 100px; right: 12px; left: 12px; }
  .toast { min-width: unset; max-width: 100%; }
}