/* ===========================================================
   問い合わせフォーム 共通スタイル
   contact.html / smart/index.html で共用
   主色はページ側の --navy / --blue を継承（無ければ既定の緑）
   =========================================================== */
.cf{
  --cf-main: var(--navy, #1F8C7D);
  --cf-accent: var(--blue, #4ACFB9);
  --cf-ink: var(--ink, #262B2A);
  --cf-soft: var(--ink-soft, #5C6563);
  --cf-line: var(--line, #D6F2EC);
  --cf-bg: var(--bg-soft, #E4FAF6);
  --cf-err: #C0392B;
  max-width: 760px;
  margin: 0 auto;
}

.cf-lead{
  font-size: 16px;
  line-height: 2;
  color: var(--cf-soft);
  margin-bottom: 30px;
}
.cf-lead b{ color: var(--cf-main); }

/* --- 種別の選択（ラジオをカード状に） --- */
.cf-topics{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 6px;
}
.cf-topics label{
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 64px;
  padding: 12px 10px;
  border: 1px solid var(--cf-line);
  background: #fff;
  font-size: 14.5px;
  line-height: 1.6;
  letter-spacing: .04em;
  cursor: pointer;
  transition: border-color .2s, background .2s, color .2s;
}
.cf-topics input{
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.cf-topics label:hover{ border-color: var(--cf-accent); }
.cf-topics input:checked + span{ font-weight: 700; }
.cf-topics label:has(input:checked){
  border-color: var(--cf-main);
  background: var(--cf-main);
  color: #fff;
}
.cf-topics label:has(input:focus-visible){
  outline: 2px solid var(--cf-accent);
  outline-offset: 2px;
}
@media(max-width:620px){ .cf-topics{ grid-template-columns: 1fr; } }

/* --- 各項目 --- */
.cf-row{ margin-bottom: 22px; }
.cf-row.cf-half{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  margin-bottom: 22px;
}
.cf-row.cf-half > div{ margin: 0; }
@media(max-width:620px){ .cf-row.cf-half{ grid-template-columns: 1fr; } }

.cf label.cf-lb{
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--cf-ink);
  margin-bottom: 8px;
}
.cf-req,
.cf-any{
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .1em;
  padding: 3px 8px;
  line-height: 1;
}
.cf-req{ background: var(--cf-main); color: #fff; }
.cf-any{ background: var(--cf-bg); color: var(--cf-soft); }

.cf input[type=text],
.cf input[type=tel],
.cf input[type=email],
.cf select,
.cf textarea{
  width: 100%;
  font-family: inherit;
  font-size: 16px;           /* 16px 未満だと iOS で拡大するため 15px 以上を維持 */
  line-height: 1.7;
  color: var(--cf-ink);
  background: #fff;
  border: 1px solid var(--cf-line);
  border-radius: 2px;
  padding: 14px 16px;
  transition: border-color .2s, box-shadow .2s;
  -webkit-appearance: none;
  appearance: none;
}
.cf select{
  background-image: linear-gradient(45deg, transparent 50%, var(--cf-soft) 50%),
                    linear-gradient(135deg, var(--cf-soft) 50%, transparent 50%);
  background-position: calc(100% - 20px) 50%, calc(100% - 14px) 50%;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
  padding-right: 42px;
}
.cf textarea{ min-height: 150px; resize: vertical; }
.cf input:focus,
.cf select:focus,
.cf textarea:focus{
  outline: none;
  border-color: var(--cf-main);
  box-shadow: 0 0 0 3px rgba(74,207,185,.18);
}
.cf .cf-hint{
  font-size: 13px;
  line-height: 1.8;
  color: var(--cf-soft);
  margin-top: 7px;
}

/* エラー */
.cf .cf-err{
  display: none;
  font-size: 13px;
  color: var(--cf-err);
  margin-top: 6px;
}
.cf [data-invalid] input,
.cf [data-invalid] textarea,
.cf [data-invalid] select{ border-color: var(--cf-err); }
.cf [data-invalid] .cf-err{ display: block; }

/* ハニーポット（人には見せない） */
.cf-hp{
  position: absolute !important;
  left: -9999px !important;
  width: 1px; height: 1px;
  overflow: hidden;
}

/* --- 同意 --- */
.cf-agree{
  border: 1px solid var(--cf-line);
  background: var(--cf-bg);
  padding: 20px 22px;
  margin: 30px 0 26px;
}
.cf-agree p{
  font-size: 16px;
  line-height: 1.95;
  color: var(--cf-soft);
  margin-bottom: 14px;
}
.cf-agree label{
  display: flex;
  align-items: flex-start;
  gap: 11px;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--cf-ink);
  cursor: pointer;
}
.cf-agree input{
  width: 20px; height: 20px;
  flex: none;
  margin-top: 3px;
  accent-color: var(--cf-main);
  cursor: pointer;
}

/* --- 送信 --- */
.cf-submit{
  display: block;
  width: 100%;
  font-family: inherit;
  font-size: 16.5px;
  font-weight: 700;
  letter-spacing: .16em;
  color: #fff;
  background: var(--cf-main);
  border: none;
  border-radius: 2px;
  padding: 21px 20px;
  cursor: pointer;
  transition: background .25s, opacity .25s;
}
.cf-submit:hover{ background: var(--cf-accent); }
.cf-submit:disabled{ opacity: .55; cursor: default; }
.cf-note{
  font-size: 13px;
  line-height: 1.9;
  color: var(--cf-soft);
  text-align: center;
  margin-top: 16px;
}

/* --- 送信後 / 障害時 --- */
.cf-done,
.cf-fail{
  display: none;
  padding: 44px 30px;
  text-align: center;
  border: 2px solid var(--cf-main);
}
.cf-done.on,
.cf-fail.on{ display: block; }
.cf-fail{ border-color: var(--cf-err); }
.cf-done .t,
.cf-fail .t{
  font-family: var(--mincho, 'Shippori Mincho', serif);
  font-weight: 600;
  font-size: 21px;
  color: var(--cf-main);
  margin-bottom: 14px;
}
.cf-fail .t{ color: var(--cf-err); }
.cf-done p,
.cf-fail p{
  font-size: 16px;
  line-height: 2;
  color: var(--cf-soft);
}
.cf-done .tel,
.cf-fail .tel{
  display: inline-block;
  margin-top: 18px;
  font-family: var(--en, "Archivo", sans-serif);
  font-weight: 800;
  font-size: 30px;
  letter-spacing: .04em;
  color: var(--cf-main);
}

/* フォーム本体を隠すとき */
.cf-body.off{ display: none; }