/* ============================================================
   main.css — ベースCSS（LIFF・顧客・スタッフ向けページ共通）
   ============================================================ */

/* CSS変数（カラーテーマ） */
:root {
  --color-primary:       #2563eb;
  --color-primary-dark:  #1d4ed8;
  --color-primary-light: #dbeafe;
  --color-secondary:     #64748b;
  --color-success:       #16a34a;
  --color-warning:       #d97706;
  --color-danger:        #dc2626;
  --color-bg:            #f8fafc;
  --color-surface:       #ffffff;
  --color-border:        #e2e8f0;
  --color-text:          #1e293b;
  --color-text-muted:    #64748b;

  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  12px;
  --shadow-sm:  0 1px 2px rgba(0,0,0,.06);
  --shadow-md:  0 4px 6px rgba(0,0,0,.08);
  --transition: 0.15s ease;
}

/* リセット */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; }
body {
  font-family: 'Noto Sans JP', 'Hiragino Sans', 'Meiryo', sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
}
a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }

/* コンテナ */
.container {
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  padding: 16px;
}

/* カード */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 16px;
}

/* フォーム要素 */
.form-group {
  margin-bottom: 16px;
}
.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}
.form-label .required {
  color: var(--color-danger);
  margin-left: 4px;
}
.form-control {
  display: block;
  width: 100%;
  padding: 10px 12px;
  font-size: 1rem;
  font-family: inherit;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
}
.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,.15);
}
textarea.form-control { resize: vertical; min-height: 100px; }
select.form-control { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 8L1 3h10z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; padding-right: 32px; }
.form-error { color: var(--color-danger); font-size: 0.8rem; margin-top: 4px; }
.form-hint  { color: var(--color-text-muted); font-size: 0.8rem; margin-top: 4px; }

/* ボタン */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 20px;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: inherit;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  white-space: nowrap;
  text-decoration: none;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary  { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); }
.btn-success  { background: var(--color-success); color: #fff; }
.btn-danger   { background: var(--color-danger);  color: #fff; }
.btn-secondary { background: var(--color-secondary); color: #fff; }
.btn-outline  { background: transparent; border: 2px solid var(--color-primary); color: var(--color-primary); }
.btn-lg { padding: 14px 28px; font-size: 1.05rem; }
.btn-sm { padding: 6px 14px; font-size: 0.8rem; }
.btn-block { display: flex; width: 100%; }

/* アラート */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  margin-bottom: 16px;
}
.alert-success { background: #dcfce7; color: #166534; border: 1px solid #bbf7d0; }
.alert-warning { background: #fef9c3; color: #854d0e; border: 1px solid #fde68a; }
.alert-danger  { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }
.alert-info    { background: var(--color-primary-light); color: #1e40af; border: 1px solid #bfdbfe; }

/* ヘッダー */
.page-header {
  background: var(--color-primary);
  color: #fff;
  padding: 16px;
  text-align: center;
}
.page-header h1 { font-size: 1.1rem; font-weight: 700; }

/* バッジ */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}
.badge-primary { background: var(--color-primary-light); color: var(--color-primary); }
.badge-success { background: #dcfce7; color: var(--color-success); }
.badge-warning { background: #fef9c3; color: var(--color-warning); }
.badge-danger  { background: #fee2e2; color: var(--color-danger); }
.badge-secondary { background: #f1f5f9; color: var(--color-secondary); }

/* ユーティリティ */
.text-center { text-align: center; }
.text-right  { text-align: right; }
.text-muted  { color: var(--color-text-muted); font-size: 0.875rem; }
.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 16px; }
.mt-4 { margin-top: 24px; }
.mb-3 { margin-bottom: 16px; }
.mb-4 { margin-bottom: 24px; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 16px; }
.w-100 { width: 100%; }

/* ローディング */
.spinner {
  display: inline-block;
  width: 24px; height: 24px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* レスポンシブ */
@media (max-width: 480px) {
  .container { padding: 12px; }
  .card { padding: 16px; }
}