/* ======================================
   Hub0.css（フル版）
   「後悔の種」3問モーダルページ用スタイル
   ・近未来＋幻想系デザイン
   ・レイアウトのサイズ指定は基本 rem / %
   ・メディアクエリなしでスマホ〜PC両対応
   ====================================== */

/* ------------------------------
   ベース（Hub0 範囲だけ）
   ------------------------------ */

#hub0-root {
  position: relative;
  min-height: 100vh;
  width: 100%;
  overflow: hidden;

  color: #e8f4ff;
  font-family: "Marcellus", "游明朝体", "Yu Mincho", serif;
}

#hub0-root * {
  box-sizing: border-box;
}

/* ------------------------------
   背景レイヤー
   JS から background-image を適用
   ------------------------------ */

.hub0-bg-layer {
  position: fixed;
  inset: 0;
  z-index: -2;

  background-color: #020412;
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center center;

  /* 背景のコントラストを少しだけ強く */
  filter: saturate(1.2) contrast(1.05) brightness(0.9);

  animation: hub0BgZoom 60s ease-in-out infinite alternate;
}

.hub0-bg-layer::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 10%, rgba(120, 200, 255, 0.35), transparent 55%),
    radial-gradient(circle at 80% 90%, rgba(255, 140, 220, 0.35), transparent 55%),
    linear-gradient(to bottom, rgba(0, 0, 0, 0.65), rgba(0, 0, 0, 0.9));
  mix-blend-mode: screen;
  pointer-events: none;
}

/* ------------------------------
   モーダル全体
   ------------------------------ */

#hub0-modal {
  position: relative;
  z-index: 1;

  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;

  padding: 5vh 5vw;
}

/* カード本体（半透明＋背景が透ける） */
.hub0-modal-inner {
  position: relative;
  width: min(40rem, 100%);
  padding: 2.4rem 2.1rem 2.1rem;

  background:
    radial-gradient(
      circle at 20% 0%,
      rgba(150, 220, 255, 0.3),
      transparent 55%
    ),
    linear-gradient(
      to bottom,
      rgba(5, 10, 25, 0.3),
      rgba(3, 6, 18, 0.5)
    );
  border-radius: 1.5rem;

  backdrop-filter: blur(1.25rem);
  -webkit-backdrop-filter: blur(1.25rem);

  border: 0.075rem solid rgba(210, 235, 255, 0.45);
  box-shadow:
    0 0 1.25rem rgba(80, 170, 255, 0.55),
    0 0 5rem rgba(0, 0, 0, 0.95);

  animation: hub0CardFloat 14s ease-in-out infinite alternate;
}

.hub0-modal-inner::before {
  content: "";
  position: absolute;
  inset: -0.0625rem;
  border-radius: inherit;
  border: 0.0625rem solid rgba(255, 255, 255, 0.1);
  pointer-events: none;
}

.hub0-modal-inner::after {
  content: "";
  position: absolute;
  inset: -20%;
  border-radius: 2.5rem;
  background:
    radial-gradient(circle at 10% 0%, rgba(120, 200, 255, 0.18), transparent 60%),
    radial-gradient(circle at 90% 100%, rgba(255, 140, 220, 0.16), transparent 65%);
  opacity: 0.7;
  mix-blend-mode: screen;
  z-index: -1;
}

/* 質問切り替え時のふんわりエフェクト */
.hub0-modal-inner.hub0-changing {
  animation: hub0QuestionFlash 0.28s ease-out;
}


/* ------------------------------
   モーダル右上 × ボタン
   ------------------------------ */

.hub0-close-btn {
  position: absolute;
  top: 0.8rem;
  right: 1rem;

  width: 2.2rem;
  height: 2.2rem;

  display: inline-flex;
  align-items: center;
  justify-content: center;

  border-radius: 999rem;
  border: 0.065rem solid rgba(210, 235, 255, 0.9);
  background:
    radial-gradient(circle at 30% 0%, rgba(230, 255, 255, 0.4), transparent 60%),
    rgba(10, 18, 45, 0.98);

  color: #f8fbff;
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  outline: none;

  box-shadow:
    0 0 0.6rem rgba(160, 230, 255, 0.95),
    0 0 2rem rgba(5, 10, 30, 0.98);

  transition:
    transform 0.14s ease-out,
    box-shadow 0.14s ease-out,
    border-color 0.14s ease-out,
    background 0.14s ease-out;
}

.hub0-close-btn:hover,
.hub0-close-btn:focus-visible {
  transform: translateY(-0.04rem) scale(1.04);
  border-color: rgba(255, 255, 255, 1);
  background:
    radial-gradient(circle at 30% 0%, rgba(250, 255, 255, 0.5), transparent 60%),
    rgba(18, 28, 70, 0.99);

  box-shadow:
    0 0 0.9rem rgba(210, 255, 255, 0.98),
    0 0 2.4rem rgba(15, 25, 80, 0.98);
}

.hub0-close-btn:active {
  transform: translateY(0.06rem) scale(0.97);
}



/* ------------------------------
   質問番号 / 質問文
   ------------------------------ */

/* Q1 / Q2 / Q3 表示 */
.hub0-question-number {
  margin: 0 0 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.95rem;

  color: #cfe3ff;
  text-align: center;

  text-shadow:
    0 0 0.18rem rgba(0, 0, 0, 0.9),
    0 0 0.5rem rgba(40, 100, 220, 0.9);
}

/* 質問文 */
.hub0-question-text {
  margin: 0 0 1.75rem;
  line-height: 1.75;
  font-size: 1.05rem;

  color: #f4f7ff;
  text-align: left;
  text-shadow:
    0 0 0.15rem rgba(0, 0, 0, 0.88),
    0 0 0.75rem rgba(3, 5, 18, 0.95);
}

/* ------------------------------
   選択肢ボタン
   ------------------------------ */

.hub0-options {
  display: grid;
  gap: 0.9rem;
}

.hub0-option-btn {
  position: relative;
  width: 100%;
  padding: 0.9rem 1rem;
  padding-left: 2.3rem;

  border-radius: 999rem;
  border: 0.065rem solid rgba(180, 225, 255, 0.8);
  background:
    radial-gradient(circle at 0% 0%, rgba(120, 200, 255, 0.18), transparent 55%),
    rgba(5, 12, 35, 0.94);

  color: #eef4ff;
  font-size: 0.98rem;
  text-align: left;
  line-height: 1.55;

  cursor: pointer;
  outline: none;

  box-shadow:
    0 0 0.5rem rgba(60, 130, 255, 0.6),
    0 0 1.4rem rgba(0, 0, 0, 0.96);

  transition:
    transform 0.12s ease-out,
    box-shadow 0.12s ease-out,
    border-color 0.12s ease-out,
    background 0.12s ease-out;
}

/* ホバー & フォーカス（PC / キーボード） */
.hub0-option-btn:hover,
.hub0-option-btn:focus-visible {
  transform: translateY(-0.06rem);
  border-color: rgba(255, 255, 255, 0.95);
  background:
    radial-gradient(circle at 0% 0%, rgba(170, 230, 255, 0.3), transparent 60%),
    rgba(10, 20, 55, 0.98);

  box-shadow:
    0 0 0.9rem rgba(150, 220, 255, 0.9),
    0 0 1.8rem rgba(0, 0, 0, 0.98);
}

/* クリック時 */
.hub0-option-btn:active {
  transform: translateY(0.06rem) scale(0.995);
  box-shadow:
    0 0 0.4rem rgba(50, 120, 255, 0.7),
    0 0 1.25rem rgba(0, 0, 0, 0.96);
}

/* クリックされたボタンが一瞬光る */
.hub0-option-btn.is-selected {
  border-color: rgba(255, 255, 255, 0.98);
  background:
    radial-gradient(circle at 0% 0%, rgba(210, 250, 255, 0.4), transparent 60%),
    rgba(15, 30, 70, 0.99);
  box-shadow:
    0 0 1rem rgba(210, 250, 255, 0.9),
    0 0 1.9rem rgba(0, 0, 0, 1);
}

/* 左端の光るドット */
.hub0-option-btn::before {
  content: "";
  position: absolute;
  left: 0.9rem;
  top: 50%;
  transform: translateY(-50%);
  width: 0.56rem;
  height: 0.56rem;
  border-radius: 999rem;
  background: radial-gradient(circle, #9fe8ff 0%, #3fa8ff 55%, transparent 100%);
  box-shadow:
    0 0 0.5rem rgba(120, 220, 255, 0.95),
    0 0 1.1rem rgba(80, 160, 255, 0.9);
}

/* ------------------------------
   診断結果ページへの矢印ボタン
   ------------------------------ */

.hub0-go-result {
  margin-top: 2rem;
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;

  width: 3rem;
  height: 3rem;

  border-radius: 999rem;
  border: 0.065rem solid rgba(210, 235, 255, 0.9);
  background:
    radial-gradient(circle at 30% 0%, rgba(200, 255, 255, 0.35), transparent 60%),
    rgba(8, 18, 50, 0.98);

  color: #f5fbff;
  font-size: 1.6rem;
  line-height: 1;
  cursor: pointer;
  outline: none;

  box-shadow:
    0 0 0.6rem rgba(160, 230, 255, 0.95),
    0 0 2.1rem rgba(10, 15, 40, 0.98);

  transition:
    transform 0.14s ease-out,
    box-shadow 0.14s ease-out,
    border-color 0.14s ease-out,
    background 0.14s ease-out;
}

.hub0-go-result:hover,
.hub0-go-result:focus-visible {
  transform: translateY(-0.06rem) scale(1.06);
  border-color: rgba(255, 255, 255, 1);
  background:
    radial-gradient(circle at 30% 0%, rgba(230, 255, 255, 0.45), transparent 60%),
    rgba(15, 25, 70, 0.99);

  box-shadow:
    0 0 0.9rem rgba(210, 255, 255, 0.98),
    0 0 2.4rem rgba(20, 30, 90, 0.98);
}

.hub0-go-result:active {
  transform: translateY(0.06rem) scale(0.97);
}

/* ------------------------------
   アニメーション定義
   ------------------------------ */

@keyframes hub0BgZoom {
  0% {
    transform: scale(1);
  }
  100% {
    transform: scale(1.08);
  }
}

@keyframes hub0CardFloat {
  0% {
    transform: translateY(0);
  }
  100% {
    transform: translateY(-0.5rem);
  }
}

@keyframes hub0QuestionFlash {
  0% {
    transform: translateY(0);
    opacity: 1;
    box-shadow:
      0 0 1.25rem rgba(120, 210, 255, 0.7),
      0 0 5rem rgba(0, 0, 0, 0.95);
  }
  50% {
    transform: translateY(0.12rem);
    opacity: 0.72;
    box-shadow:
      0 0 0.6rem rgba(80, 160, 255, 0.5),
      0 0 3.75rem rgba(0, 0, 0, 0.9);
  }
  100% {
    transform: translateY(0);
    opacity: 1;
    box-shadow:
      0 0 1.25rem rgba(80, 170, 255, 0.55),
      0 0 5rem rgba(0, 0, 0, 0.95);
  }
  
}