@charset "utf-8";

:root {
  --primary: #2563eb;
  --primary-light: #eff6ff;
  --success: #059669;
  --error: #e11d48;
  --text-main: #1e293b;
  --text-sub: #64748b;
  --border: #cbd5e1;
  --bg: #f8fafc;
}

body {
  background-color: var(--bg);
  color: var(--text-main);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 10px;
}

#sfm-container {
  max-width: 680px;
  margin: 40px auto;
  background: #ffffff;
  padding: 32px;
  border-radius: 16px;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05);
}

h1 { font-size: 24px; font-weight: 800; text-align: center; margin-bottom: 8px; color: var(--primary); }
h2 { font-size: 14px; text-align: center; color: var(--text-sub); margin-bottom: 40px; }

/* フォームブロック */
.form-section {
  margin-bottom: 32px;
  padding-bottom: 16px;
  border-bottom: 1px solid #f1f5f9;
}

.form-group { margin-bottom: 24px; }

.label-row {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  margin-bottom: 8px;
  gap: 8px;
}

.label-text { font-weight: 700; font-size: 15px; }

.badge {
  font-size: 11px;
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: 700;
}
.badge-req { background: #fee2e2; color: var(--error); }
.badge-opt { background: #f1f5f9; color: var(--text-sub); }

/* 入力コントロール */
input[type="text"], 
input[type="email"], 
input[type="tel"], 
select, 
textarea {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--border);
  border-radius: 8px;
  font-size: 16px; /* スマホのズーム防止 */
  transition: all 0.2s;
  box-sizing: border-box;
  background-color: #fff;
}

input:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
  background-color: var(--primary-light);
}

/* 郵便番号・電話番号のレイアウト */
.input-grid {
  display: flex;
  align-items: center;
  gap: 12px;
}
.w-zip1 { width: 80px !important; }
.w-zip2 { width: 100px !important; }
.w-tel { width: 80px !important; }

/* チェックボックス */
.choice-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
}
.choice-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  transition: 0.2s;
}
.choice-item:hover { background: var(--primary-light); }
.choice-item input { width: 18px; height: 18px; margin: 0; }

/* エラーメッセージ */
.ERR {
  background: #fff1f2;
  color: var(--error);
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 13px;
  margin-top: 8px;
  display: block;
  font-weight: 600;
}

/* ボタン */
.action-area {
  margin-top: 48px;
  text-align: center;
}
.btn-main {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 16px 64px;
  font-size: 18px;
  font-weight: 700;
  border-radius: 50px;
  cursor: pointer;
  width: 100%;
  transition: transform 0.2s, box-shadow 0.2s;
}
.btn-main:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px -5px rgba(37, 99, 235, 0.4);
}
.btn-sub {
  background: transparent;
  color: var(--text-sub);
  border: none;
  margin-top: 24px;
  cursor: pointer;
  text-decoration: underline;
  font-size: 14px;
}

/* 著作権 */
#copyright { margin-top: 40px; font-size: 11px; text-align: center; color: var(--text-sub); }

@media (max-width: 480px) {
  #sfm-container { padding: 20px; }
  .choice-list { grid-template-columns: 1fr; }
}