/* =========================================================
   CONTACT FORM（既存デザイン踏襲：色/影/角丸/タイポ）
   ※ base_2026_v2.css に追記OK（完全版）
========================================================= */

.sec--form{
  padding-top: 40px;
  padding-bottom: 70px;
}

.req-badge{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width: 1.8em;
  height: 1.8em;
  border-radius: 999px;
  background: rgba(216,0,2,.12);
  color: var(--point2);
  font-weight: 900;
  margin-right: 6px;
  vertical-align: middle;
}

.form-card{
  max-width: 1300px;
  margin: 0 auto;
  background: #fff;
  border: 1px solid rgba(11,18,32,.10);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: clamp(18px, 2.2vw, 28px);
}

.form-grid{
  display: grid;
  grid-template-columns: 1fr;  /* 常に1カラム */
  gap: 14px;
}

.field{
    display: grid;
    gap: 8px;
    margin-bottom:1rem;
}

.field--full{
  grid-column: 1 / -1;
}

.field__label{
  font-weight: 900;
  color: var(--ink);
  letter-spacing: .02em;
  font-size: 1rem;
  font-family: "Hiragino Sans","Hiragino Kaku Gothic ProN",Meiryo,sans-serif;
}

.req{
  color: var(--point2);
  font-weight: 900;
  margin-left: 6px;
}

.field__control{
  display: grid;
  gap: 8px;
}

.field__control--2col{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.subfield{
  display: grid;
  gap: 6px;
}
.subfield__hint{
  font-size: .85rem;
  color: rgba(11,18,32,.65);
  font-weight: 700;
}

.inp, .ta{
  width: 100%;
  border: 1px solid rgba(11,18,32,.14);
  border-radius: 12px;
  padding: 12px 12px;
  font-size: 1rem;
  background: #fff;
  outline: none;
  transition: border-color .15s ease, box-shadow .15s ease, transform .15s ease;
  font-family: "Hiragino Sans","Hiragino Kaku Gothic ProN",Meiryo,sans-serif;
}

.inp:focus, .ta:focus{
  border-color: rgba(171,31,0,.45);
  box-shadow: 0 0 0 4px rgba(171,31,0,.12);
}

.inp::placeholder, .ta::placeholder{
  color: rgba(11,18,32,.45);
}

.ta{
  resize: vertical;
  min-height: 140px;
  line-height: 1.8;
}

.field__split{
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.inp--mini{ max-width: 9.5em; }
.inp--mid{ max-width: 12em; }

.split-dash{
  color: rgba(11,18,32,.55);
  font-weight: 900;
}

.field__help{
  margin: 0;
  color: rgba(11,18,32,.68);
  font-size: .92rem;
  line-height: 1.7;
}
.help-dot{
  color: var(--point);
  font-weight: 900;
  margin-right: 6px;
}

.form-actions{
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid rgba(11,18,32,.10);
  text-align: center;
}

.btn-submit{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: min(420px, 100%);
  padding: 14px 16px;
  border-radius: 14px;
  border: 0;
  background: var(--point);
  color: #fff;
  font-weight: 900;
  font-size: 1.05rem;
  letter-spacing: .04em;
  cursor: pointer;
  box-shadow: 0 16px 40px rgba(171,31,0,.22);
  transition: transform .15s ease, filter .15s ease;
}

.btn-submit:hover{
  filter: brightness(1.03);
  transform: translateY(-1px);
}

.btn-submit:active{
  transform: translateY(1px);
}

.form-note{
  margin: 12px 0 0;
  color: rgba(11,18,32,.68);
  font-size: .9rem;
  line-height: 1.7;
}

/* バリデーションメッセージ（spanが入る想定）を崩れにくくする */
[id^="span1_rt"]{
  display: block;
  font-size: .92rem;
  line-height: 1.6;
  color: var(--point2);
  font-weight: 700;
}

/* レスポンシブ */
@media (max-width: 860px){
  .form-grid{
    grid-template-columns: 1fr;
  }
  .field--full{
    grid-column: auto;
  }
  .field__control--2col{
    grid-template-columns: 1fr;
  }
  .inp--mini, .inp--mid{
    max-width: 100%;
  }
}