/* ==========================================================================
   form2026.css — contact / audition / thanks 系ページの2026ブライト統一
   portal-v3.css / portal-v3-sub.css の後に読み込む上書きレイヤー。
   Production トップ「ブライトステージ」（紫→青グラデ）とトーンを揃える。
   ========================================================================== */

/* ── サブヒーロー: ブライトグラデ帯 ─────────────────────────── */
.sub-hero,
.sub-hero.compact-hero {
  position: relative;
  background:
    radial-gradient(circle at 12% 18%, rgba(244, 114, 182, .38), transparent 44%),
    radial-gradient(circle at 88% 84%, rgba(56, 189, 248, .46), transparent 50%),
    linear-gradient(112deg, #a78bfa 0%, #8b5cf6 30%, #7c6ff0 55%, #38bdf8 100%);
  overflow: hidden;
}
.sub-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, .5) 1px, transparent 1px);
  background-size: 34px 34px;
  opacity: .18;
  pointer-events: none;
}
.sub-hero .container { position: relative; z-index: 1; }

.sub-hero .sub-title,
.sub-hero .sub-title span,
.sub-hero .content-title,
.sub-hero h1 {
  color: #fff;
  text-shadow: 0 2px 0 rgba(63, 27, 140, .35), 0 12px 30px rgba(40, 16, 96, .3);
}
.sub-hero .sub-lead { color: rgba(255, 255, 255, .92); }
.sub-hero .marker-text { color: #fff; letter-spacing: .3em; }
.sub-hero .marker-bar { background: #fff; }
.sub-hero .mini-tag {
  border: 1.5px solid rgba(255, 255, 255, .6);
  background: rgba(255, 255, 255, .16);
  color: #fff;
  border-radius: 100px;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

/* ── コンテンツ面: ライト面へ ──────────────────────────────── */
.subpage-main { background: #ffffff; }
.content-section { background: transparent; }

/* カード（案内・フォーム枠） */
.contact-info,
.contact-form-wrap,
.thanks-card {
  background: #ffffff;
  border: 1px solid #e9e5f5;
  border-radius: 20px;
  box-shadow: 0 16px 40px rgba(60, 34, 130, .08);
}
.contact-info {
  position: relative;
  overflow: hidden;
}
.contact-info::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: linear-gradient(120deg, #7C3AED 0%, #A855F7 55%, #EC4899 100%);
}

/* ── フォーム部品 ──────────────────────────────────────────── */
.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form input[type="url"],
.contact-form input[type="number"],
.contact-form select,
.contact-form textarea {
  background: #fbfaff;
  border: 1.5px solid #e9e5f5;
  border-radius: 12px;
  color: #17141f;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: #7C3AED;
  box-shadow: 0 0 0 3px rgba(124, 58, 237, .15);
}
.contact-form legend {
  color: #17141f;
  font-weight: 800;
}
.contact-form fieldset {
  border: 1px solid #e9e5f5;
  border-radius: 16px;
  background: #fff;
}
.contact-form .field-note { color: #9b95b3; }
.contact-form .req { color: #EC4899; }

.radio-group .radio-label input:checked + span,
.radio-label input:checked + span {
  color: #7C3AED;
  font-weight: 700;
}

/* 送信ボタン: ブランドグラデ */
.contact-form button[type="submit"],
.btn-submit,
.primary-btn {
  background: linear-gradient(120deg, #7C3AED 0%, #A855F7 55%, #EC4899 100%);
  color: #fff;
  border: 0;
  border-radius: 100px;
  font-weight: 800;
  letter-spacing: .05em;
  box-shadow: 0 10px 26px rgba(124, 58, 237, .32);
  transition: transform .2s ease, box-shadow .25s ease;
}
.contact-form button[type="submit"]:hover,
.btn-submit:hover,
.primary-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 32px rgba(124, 58, 237, .42);
}

/* エラーボックス */
.error-box {
  background: #fdf2f8;
  border: 1.5px solid rgba(236, 72, 153, .4);
  border-radius: 14px;
  color: #9d174d;
}

/* thanksページの戻るリンク等 */
.subpage-main .btn,
.subpage-main .back-link {
  border-radius: 100px;
}