:root {
  --primary: #2e7d4f;
  --primary-dark: #245f3e;
  --bg: #f6f7f5;
  --card: #ffffff;
  --border: #e0e2dd;
  --text: #2a2d28;
  --muted: #6b6f68;
  --radius: 12px;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
}
.app-header {
  background: var(--primary);
  color: #fff;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 10;
}
.app-header h1 { font-size: 18px; margin: 0; }
#app { max-width: 760px; margin: 0 auto; padding: 20px 16px 60px; }
.screen { animation: fade .2s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }
h2 { font-size: 20px; margin: 8px 0 18px; }
.lead { font-size: 18px; text-align: center; margin: 30px 0 20px; }

/* ボタン */
.big-btn {
  display: block; width: 100%;
  padding: 16px; font-size: 16px; font-weight: 600;
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--card); color: var(--text); cursor: pointer;
  transition: .15s; margin-bottom: 12px;
}
.big-btn:hover { border-color: var(--primary); }
.big-btn.primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.big-btn.primary:hover { background: var(--primary-dark); }
.start-buttons { margin-top: 24px; }
.link-btn { background: none; border: none; color: #fff; cursor: pointer; font-size: 14px; }
.result-head .link-btn, #screen-form .link-btn { color: var(--primary); }

/* 投稿種別カード */
.type-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.type-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px 12px; font-size: 15px; font-weight: 600; cursor: pointer; text-align: center;
  line-height: 1.4; transition: .15s;
}
.type-card:hover { border-color: var(--primary); transform: translateY(-2px); }
.type-card .emoji { display: block; font-size: 30px; margin-bottom: 8px; }

/* フォーム */
.field { margin-bottom: 18px; }
.field > label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 14px; }
.input, textarea, select {
  width: 100%; padding: 11px 12px; font-size: 15px; font-family: inherit;
  border: 1px solid var(--border); border-radius: 8px; background: #fff; color: var(--text);
}
textarea { resize: vertical; min-height: 84px; }
.hint { font-size: 12px; color: var(--muted); margin: 6px 0 0; }
.req { color: #c0392b; font-size: 12px; margin-left: 4px; }

/* チップ */
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; }
.chip-group-label { width: 100%; font-size: 12px; color: var(--muted); margin: 8px 0 2px; font-weight: 600; }
.chip {
  border: 1px solid var(--border); background: #fff; border-radius: 999px;
  padding: 6px 14px; font-size: 13px; cursor: pointer; transition: .12s;
}
.chip:hover { border-color: var(--primary); }
.chip.selected { background: var(--primary); color: #fff; border-color: var(--primary); }

/* トーン */
.tone-field input[type=range] { width: 100%; }
.tone-labels { display: flex; justify-content: space-between; font-size: 12px; color: var(--muted); }

/* 結果カード */
.result-head { display: flex; justify-content: space-between; align-items: center; }
.result-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px; margin-bottom: 16px;
}
.result-card h3 { margin: 0 0 10px; font-size: 14px; color: var(--primary); }
.result-card .title-line { font-weight: 600; margin-bottom: 6px; }
.result-card textarea { min-height: 150px; }
.card-actions { display: flex; gap: 8px; margin-top: 10px; flex-wrap: wrap; }
.sm-btn {
  border: 1px solid var(--border); background: #fff; border-radius: 8px;
  padding: 7px 14px; font-size: 13px; cursor: pointer;
}
.sm-btn:hover { border-color: var(--primary); }
.sm-btn.copied { background: var(--primary); color: #fff; border-color: var(--primary); }
.char-count { font-size: 12px; color: var(--muted); margin-top: 4px; }
.char-count.over { color: #c0392b; font-weight: 600; }

/* 週次カード */
.weekly-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px 16px; margin-bottom: 12px; display: flex; gap: 14px; align-items: flex-start;
}
.weekly-date { flex: 0 0 64px; text-align: center; }
.weekly-date .wd { font-size: 22px; font-weight: 700; color: var(--primary); }
.weekly-date .dt { font-size: 11px; color: var(--muted); }
.weekly-body { flex: 1; }
.weekly-body .genre { font-size: 12px; color: var(--muted); }
.weekly-body .theme { font-weight: 600; margin: 2px 0 4px; }
.weekly-body .reason { font-size: 12px; color: var(--muted); }
.weekly-body .pt-badge {
  display: inline-block; font-size: 11px; background: #eef3ee; color: var(--primary-dark);
  border-radius: 6px; padding: 1px 8px; margin-top: 6px;
}
.weekly-card .sm-btn { white-space: nowrap; align-self: center; }

/* ローディング */
.loading {
  position: fixed; inset: 0; background: rgba(255,255,255,.82);
  display: flex; flex-direction: column; align-items: center; justify-content: center; z-index: 50;
}
.spinner {
  width: 42px; height: 42px; border: 4px solid var(--border);
  border-top-color: var(--primary); border-radius: 50%; animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.error-banner {
  background: #fdecea; color: #c0392b; border: 1px solid #f5c6c0;
  border-radius: 8px; padding: 10px 14px; margin-bottom: 16px; font-size: 14px;
}

/* 修正: hidden 属性のときは確実に非表示（.loading の display:flex が hidden を打ち消す問題の対策） */
.loading[hidden] { display: none !important; }

/* 入力画面の「1つ戻る」ボタン */
.back-link {
  display: inline-block; margin-bottom: 6px; padding: 4px 0;
  color: var(--primary); font-size: 14px; font-weight: 600;
}
/* 入力画面の説明バナー */
.form-intro {
  background: #eef3ee; border: 1px solid #d6e2d6; color: var(--primary-dark);
  border-radius: 8px; padding: 10px 14px; margin-bottom: 18px; font-size: 13px; line-height: 1.6;
}