/* ==========================================================
   Future Design Lab — futuristic brush-up layer (2026-08)
   lab-v2.css / lab-layout-fix.css の後に読み込む上書き専用レイヤー。
   ロールバックはこのファイルの enqueue を外すだけで済むよう、
   既存2ファイルには手を入れない方針。
   ========================================================== */

/* ----------------------------------------------------------
   1) Hero：テックグリッド＋オーロラビームを追加
   （lab-v2.css の ::before radial 3層を引き継ぎつつグリッド線を重ねる）
   ---------------------------------------------------------- */
.lab-hero-main::before {
  background:
    radial-gradient(ellipse 55% 80% at -5%  50%, rgba(255,140,0,.22)  0%, transparent 55%),
    radial-gradient(ellipse 40% 60% at 105% 20%, rgba(29,79,163,.28)  0%, transparent 55%),
    radial-gradient(ellipse 35% 50% at 60%  110%, rgba(75,175,79,.18) 0%, transparent 55%),
    linear-gradient(105deg, transparent 0%, transparent 44%, rgba(127,212,255,.10) 50%, transparent 56%, transparent 100%),
    repeating-linear-gradient(90deg, rgba(255,255,255,.045) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(0deg,  rgba(255,255,255,.035) 0 1px, transparent 1px 96px);
}

.lab-hero-tag {
  border: 1px solid rgba(255,200,80,.35);
  border-radius: 999px;
  padding: 5px 14px;
  background: rgba(255,200,80,.08);
  backdrop-filter: blur(4px);
}
.lab-hero-tag-sep { display: none; }

/* ----------------------------------------------------------
   2) カテゴリナビ：ダークガラスの操作パネル風
   ---------------------------------------------------------- */
.lab-cat-nav--top {
  background: linear-gradient(120deg, #0B1220 0%, #101D3C 55%, #190F33 100%);
  border: 1px solid rgba(120,150,255,.24);
  box-shadow: 0 18px 48px rgba(10,20,60,.30), inset 0 1px 0 rgba(255,255,255,.06);
}
.lab-cat-nav--top .lab-cat-nav__eyebrow { color: #7FD4FF; }
.lab-cat-nav--top .lab-cat-nav__title   { color: #fff; }
.lab-cat-nav--top .lab-cat-nav__label   { color: rgba(255,255,255,.90); }
.lab-cat-nav--top .lab-cat-nav__item {
  border-color: rgba(255,255,255,.08);
}
.lab-cat-nav--top .lab-cat-nav__item:hover,
.lab-cat-nav--top .lab-cat-nav__item:focus-visible {
  background: rgba(127,212,255,.12);
  border-color: rgba(127,212,255,.45);
}
.lab-cat-nav--top .lab-cat-nav__item.is-active {
  background: linear-gradient(90deg, #FF8C00, #FF5E62);
  border-color: transparent;
  box-shadow: 0 8px 22px rgba(255,120,40,.40);
}

/* ----------------------------------------------------------
   3) セクション見出し：グラデーションのアクセントライン
   ---------------------------------------------------------- */
.lab-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.lab-label::before {
  content: '';
  width: 28px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, #FF8C00, #7FD4FF);
  flex-shrink: 0;
}

/* ----------------------------------------------------------
   4) カード共通：角丸・ホバー時のデュアルグロー
   ---------------------------------------------------------- */
.lab-lcard,
.lab-hint-card,
.lab-video-card,
.lab-lcol,
.lab-mfeat {
  border-radius: 20px;
  border-color: #E6E9F4;
}
.lab-lcard:hover,
.lab-hint-card:hover,
.lab-video-card:hover {
  border-color: rgba(255,140,0,.40);
  box-shadow: 0 18px 48px rgba(17,38,87,.16), 0 0 0 1px rgba(255,140,0,.25);
}

/* ヒント帯：淡い未来感グラデーション */
.lab-hints,
.lab-content-main .lab-hints {
  background:
    radial-gradient(ellipse 60% 60% at 100% 0%,  rgba(127,212,255,.16) 0%, transparent 60%),
    radial-gradient(ellipse 50% 60% at 0%  100%, rgba(255,140,0,.10)  0%, transparent 60%),
    #F4F6FB;
}

/* ----------------------------------------------------------
   5) サムネイル全体表示（切り抜きをやめて contain＋余白は深紺）
   YouTubeサムネ（元画像に黒帯があるもの）は cover のままが最適なので除外
   ---------------------------------------------------------- */
.lab-lcard-thumb,
.lab-hint-img,
.lab-mfeat-thumb {
  background: radial-gradient(120% 120% at 50% 0%, #1C2A52 0%, #0D1428 60%, #0A0F1E 100%);
}
.lab-lcard-thumb img,
.lab-hint-img img,
.lab-mfeat-thumb img {
  object-fit: contain;
}
.lab-lcard--yt .lab-lcard-thumb img { object-fit: cover; }

/* フォールバック画像（全面用の16:9アート）は従来通り全面敷き */
.lab-lcard-thumb .lab-lcard-fb img { object-fit: cover; }
.lab-hint-img .lab-hint-fallback-img { object-fit: cover; }

/* contain では拡大ズームが不自然になるため控えめに */
.lab-lcard:hover .lab-lcard-thumb img,
.lab-hint-card:hover .lab-hint-img img,
.lab-mfeat:hover .lab-mfeat-thumb img { transform: scale(1.02); }

/* ----------------------------------------------------------
   6) ONE SONG on Instagram セクション
   ---------------------------------------------------------- */
.lab-insta {
  padding: 88px 0;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse 60% 70% at 12% 18%, rgba(188,24,136,.30) 0%, transparent 60%),
    radial-gradient(ellipse 55% 65% at 88% 82%, rgba(64,93,230,.28)  0%, transparent 60%),
    linear-gradient(135deg, #150A2E 0%, #241245 45%, #0E1B3F 100%);
}
.lab-insta .lab-sh-title { color: #fff; }
.lab-insta .lab-label { color: #FF8AD4; }
.lab-insta .lab-label::before { background: linear-gradient(90deg, #FF8AD4, #7FD4FF); }
.lab-insta .lab-sh-more {
  color: #FF9EDE;
  border-color: rgba(255,158,222,.65);
}
.lab-insta .lab-sh-more:hover { background: #FF9EDE; color: #1B0E36; }
.lab-insta-lead {
  color: rgba(255,255,255,.80);
  font-size: 1.05rem;
  margin: -16px 0 36px;
}
.lab-insta-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 24px;
  max-width: 880px;
  margin: 0 auto;
}
.lab-insta-cell {
  background: #fff;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.16);
  box-shadow: 0 16px 48px rgba(0,0,0,.35);
}
.lab-insta-cell .instagram-media {
  margin: 0 auto !important;
  min-width: 0 !important;
  width: 100% !important;
  border: 0 !important;
  border-radius: 18px !important;
}
.lab-insta-cta { text-align: center; margin-top: 40px; }
.lab-insta-follow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 44px;
  padding: 15px 40px;
  border-radius: 999px;
  text-decoration: none;
  background: linear-gradient(45deg, #F09433, #E6683C, #DC2743, #CC2366, #BC1888);
  color: #fff;
  font-weight: 900;
  font-size: 1rem;
  box-shadow: 0 8px 28px rgba(204,35,102,.45);
  transition: transform .22s, box-shadow .22s;
}
.lab-insta-follow:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 36px rgba(204,35,102,.55);
}
.lab-insta-follow:focus-visible {
  outline: 3px solid rgba(255,158,222,.9);
  outline-offset: 4px;
}
.lab-insta-sub { margin-top: 16px; }
.lab-insta-sub a {
  color: rgba(255,255,255,.78);
  font-weight: 700;
  text-decoration: none;
}
.lab-insta-sub a:hover { color: #fff; text-decoration: underline; }

@media (max-width: 768px) {
  .lab-insta { padding: 60px 0; }
  .lab-insta-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .lab-insta-follow,
  .lab-cat-nav--top .lab-cat-nav__item {
    transition-duration: .001ms !important;
    transform: none !important;
  }
}