/* ==========================================================================
   パック開封画面（シールド戦・ポケポケ風演出）
   ========================================================================== */

#pack-screen {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

#pack-header {
  display: flex;
  align-items: center;
  flex-wrap: wrap; /* スマホ幅でボタンがはみ出さないように折返し */
  gap: 8px 12px;
  padding: 10px 16px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}

#pack-header button {
  padding: 6px 14px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  cursor: pointer;
}

#pack-header button:hover { background: rgba(255, 255, 255, 0.18); }

#pack-progress { font-weight: bold; color: var(--gold); }

/* スマホ: ヘッダーが3行に折り返して高さを食うのを抑える */
@media (max-width: 640px) {
  #pack-header { padding: 7px 10px; gap: 5px 8px; }
  #pack-header button { padding: 5px 9px; font-size: 12.5px; }
  #pack-progress { font-size: 12.5px; }
}

#pack-to-builder {
  background: linear-gradient(135deg, #2e7d32, #43a047) !important;
  border-color: #66bb6a !important;
  font-weight: bold;
}

#pack-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: auto;
}

/* ---------- 未開封パックのスタック（ポケポケ風・1パックずつ開封） ---------- */

#pack-shelf {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  padding: 16px;
}

.pack-stack {
  /* パック1枚分の実寸（4:7）。高さは画面に追従し、常に1画面へ収める */
  --stack-pack-h: min(56vh, 400px);
  position: relative;
  width: calc(var(--stack-pack-h) * 4 / 7);
  height: var(--stack-pack-h);
  margin-top: 12px; /* 上のバッジ用の余白 */
  cursor: pointer;
}

/* 重なった各パック。--d が大きいほど奥（下）に沈んで見える */
.stack-layer {
  position: absolute;
  inset: 0;
  transform:
    translate(calc(var(--d) * 5px), calc(var(--d) * 7px))
    rotate(calc(var(--d) * 1.4deg));
  z-index: calc(20 - var(--d));
  filter: brightness(calc(1 - var(--d) * 0.07));
  transition: transform 0.2s, filter 0.2s;
}

/* 一番上のパックがタップ対象。ホバー/タップで軽く浮く */
.pack-stack:hover .stack-layer.stack-top {
  transform: translateY(-10px) scale(1.04);
  filter: drop-shadow(0 0 16px rgba(38, 230, 160, 0.7));
}

.stack-badge {
  position: absolute;
  top: -16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 30;
  padding: 3px 14px;
  border-radius: 12px;
  background: var(--gold);
  color: #10233c;
  font-size: 13px;
  font-weight: bold;
  white-space: nowrap;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.45);
}

.stack-hint {
  color: #cfe7ff;
  font-size: 14px;
  font-weight: bold;
  text-shadow: 0 1px 3px #000;
  animation: stack-pulse 1.6s ease-in-out infinite;
}

@keyframes stack-pulse { 50% { opacity: 0.45; } }

.stack-layer,
#pack-art {
  background:
    radial-gradient(120% 60% at 50% 12%, rgba(255, 255, 255, 0.35), transparent 45%),
    radial-gradient(ellipse at 50% 80%, #063b2b 0%, transparent 70%),
    linear-gradient(160deg, #0fd48c 0%, #0a8f66 35%, #075e4b 70%, #06382e 100%);
  border: 2px solid rgba(190, 255, 225, 0.55);
  border-radius: 8px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

/* 公式パック画像（pack.js がインラインで background-image に設定する。
   1層目=商品画像 / 2層目=エメラルドのグラデ下地） */
.stack-layer,
#pack-art {
  background-size: contain, cover;
  background-position: center;
  background-repeat: no-repeat;
}

/* ホイルの光帯（重なりの一番上／開封中パックだけ流す） */
.stack-layer.stack-top::before,
#pack-art::before {
  /* ホイルの光帯が流れる */
  content: "";
  position: absolute;
  inset: -60% -30%;
  background: linear-gradient(115deg, transparent 42%, rgba(255, 255, 255, 0.5) 50%, transparent 58%);
  animation: pack-sheen 3.2s ease-in-out infinite;
}

@keyframes pack-sheen {
  0%, 55% { transform: translateX(-45%); }
  85%, 100% { transform: translateX(45%); }
}

/* ---------- 開封ステージ ---------- */

#pack-main { align-items: stretch; }

#pack-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding: 12px;
  /* 中身が収まるときは中央寄せ、あふれるときは上から普通にスクロール */
  margin: auto;
}

#pack-wrap { perspective: 900px; }

#pack-art {
  height: min(420px, calc(100vh - 250px));
  min-height: 280px;
  aspect-ratio: 4 / 7;
  --tear: 0;
}

/* 公式パック画像を使うため、テキストロゴは非表示（画像ロード失敗時の
   下地グラデは残る） */
.pack-logo-m6 { display: none; }

.pack-art-beam {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(80% 45% at 50% 30%, rgba(90, 255, 190, 0.28), transparent 60%);
  pointer-events: none;
}

/* 封切りライン: ドラッグで --tear (0..1) が進む */
#pack-tear-line {
  position: absolute;
  top: 34px;
  left: 0;
  right: 0;
  padding: 7px 0;
  text-align: center;
  font-size: 10px;
  white-space: nowrap;
  overflow: hidden;
  font-weight: bold;
  color: #063826;
  background:
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.95) 0 12px, rgba(220, 255, 240, 0.85) 12px 24px);
  border-top: 2px dashed rgba(6, 56, 38, 0.55);
  border-bottom: 2px dashed rgba(6, 56, 38, 0.55);
  cursor: grab;
  touch-action: none;
  user-select: none;
  /* 切り取りの進行を光で表現 */
  box-shadow: inset calc(var(--tear) * 240px) 0 0 rgba(255, 214, 79, 0.55);
}

#pack-tear-line:active { cursor: grabbing; }

/* パック上部（切り取られる部分） */
#pack-top {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 36px;
  /* 銀色の圧着部（公式画像の上にかぶせる半透明フォイル） */
  background: linear-gradient(180deg, rgba(235, 245, 250, 0.9), rgba(160, 180, 195, 0.75));
  border-bottom: 2px solid rgba(255, 255, 255, 0.7);
  transition: transform 0.45s ease-in, opacity 0.45s;
}

#pack-art.torn #pack-top {
  transform: translateX(130%) rotate(18deg);
  opacity: 0;
}

#pack-art.torn { animation: pack-shake 0.4s ease-out; }

@keyframes pack-shake {
  0% { transform: rotate(0); }
  25% { transform: rotate(-2.5deg); }
  55% { transform: rotate(2deg); }
  100% { transform: rotate(0); }
}

/* 光のバースト */
#pack-art.burst::after {
  content: "";
  position: absolute;
  inset: -70%;
  background:
    radial-gradient(circle, rgba(255, 255, 255, 0.98) 0%, rgba(140, 255, 210, 0.8) 22%, transparent 62%);
  animation: pack-burst 0.65s ease-out forwards;
  pointer-events: none;
}

@keyframes pack-burst {
  0% { opacity: 0; transform: scale(0.25); }
  35% { opacity: 1; }
  100% { opacity: 0; transform: scale(1.6); }
}

/* ---------- カードのめくり ---------- */

#pack-cards {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
  perspective: 1100px;
}

.reveal-card {
  width: 150px;
  aspect-ratio: 150 / 209;
  cursor: pointer;
  animation: reveal-deal 0.5s calc(var(--i) * 0.09s) both ease-out;
}

/* スマホ: 5枚が 3+2 で気持ちよく収まるサイズに縮める */
@media (max-width: 640px) {
  .reveal-card { width: min(150px, 28vw); }
  #pack-cards { gap: 10px; }
}

@keyframes reveal-deal {
  from { transform: translateY(70px) scale(0.6); opacity: 0; }
  to { transform: none; opacity: 1; }
}

.reveal-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  transition: transform 0.55s cubic-bezier(0.3, 1.4, 0.5, 1);
}

.reveal-card.flipped .reveal-inner { transform: rotateY(180deg); }

.reveal-back,
.reveal-front {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  border-radius: 9px;
  overflow: hidden;
}

.reveal-back {
  background:
    radial-gradient(circle at 50% 50%, #1c67c9 0%, #0d2f66 65%, #081d42 100%);
  border: 2px solid rgba(150, 200, 255, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
}

.reveal-back-art {
  font-size: 44px;
  opacity: 0.7;
  filter: drop-shadow(0 0 10px rgba(120, 190, 255, 0.9));
}

.reveal-front { transform: rotateY(180deg); }

.reveal-face,
.reveal-face img { width: 100%; height: 100%; display: block; }

.reveal-rarity {
  position: absolute;
  right: 6px;
  bottom: 6px;
  padding: 1px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: bold;
  background: rgba(0, 0, 0, 0.65);
  color: #ddd;
}

.reveal-rarity.rank-1 { color: #9fd8ff; }
.reveal-rarity.rank-2 { color: var(--gold); }
.reveal-rarity.rank-3 {
  background: linear-gradient(90deg, #ff5b5b, #ffb84d, #7dff7a, #57c7ff, #c07aff);
  color: #10233c;
}

/* フリップ後のレアリティ光彩 */
.reveal-card.flipped.rank-1 .reveal-front {
  box-shadow: 0 0 14px 3px rgba(110, 190, 255, 0.65);
}

.reveal-card.flipped.rank-2 .reveal-front {
  box-shadow: 0 0 20px 5px rgba(255, 213, 79, 0.8);
  animation: gold-pulse 1.6s ease-in-out infinite;
}

@keyframes gold-pulse {
  50% { box-shadow: 0 0 30px 9px rgba(255, 213, 79, 0.95); }
}

.reveal-card.flipped.rank-3 .reveal-front {
  animation: rainbow-glow 2.2s linear infinite;
}

@keyframes rainbow-glow {
  0% { box-shadow: 0 0 22px 6px rgba(255, 91, 91, 0.85); }
  25% { box-shadow: 0 0 22px 6px rgba(255, 184, 77, 0.85); }
  50% { box-shadow: 0 0 22px 6px rgba(125, 255, 122, 0.85); }
  75% { box-shadow: 0 0 22px 6px rgba(87, 199, 255, 0.85); }
  100% { box-shadow: 0 0 22px 6px rgba(255, 91, 91, 0.85); }
}

/* ホロの流し斜め光（R以上でカード面に重なる） */
.reveal-card.flipped.rank-1 .reveal-front::after,
.reveal-card.flipped.rank-2 .reveal-front::after,
.reveal-card.flipped.rank-3 .reveal-front::after {
  content: "";
  position: absolute;
  inset: -60% -30%;
  background: linear-gradient(115deg, transparent 44%, rgba(255, 255, 255, 0.45) 50%, transparent 56%);
  animation: pack-sheen 2.6s ease-in-out infinite;
  pointer-events: none;
}

/* SR以上を引いたときの画面フラッシュ */
#pack-flash {
  position: fixed;
  inset: 0;
  z-index: 200;
  pointer-events: none;
  background:
    radial-gradient(circle at 50% 45%, rgba(255, 255, 255, 0.95) 0%, rgba(255, 220, 130, 0.5) 30%, transparent 70%);
  animation: flash-fade 1.2s ease-out forwards;
}

@keyframes flash-fade {
  0% { opacity: 0; }
  15% { opacity: 1; }
  100% { opacity: 0; }
}

#pack-stage-msg { min-height: 48px; text-align: center; }

.stage-hint {
  color: #cfe7ff;
  margin-bottom: 8px;
  text-shadow: 0 1px 3px #000;
}

#pack-all-done { text-align: center; }

#pack-all-done .done-emoji { font-size: 56px; margin-bottom: 10px; }

#pack-all-done p { margin-bottom: 18px; font-size: 18px; font-weight: bold; }

/* ---------- 下部のプールサマリー ---------- */

#pack-pool-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 16px;
  background: var(--panel);
  border-top: 1px solid var(--line);
  min-height: 76px;
  overflow-x: auto;
}

#pack-pool-count {
  flex-shrink: 0;
  font-size: 13px;
  color: #cfe7ff;
}

#pack-pool-thumbs { display: flex; gap: 8px; }

.pool-thumb {
  position: relative;
  width: 44px;
  height: 61px;
  border-radius: 4px;
  cursor: pointer;
  flex-shrink: 0;
}

.pool-thumb.rank-2 { box-shadow: 0 0 8px 2px rgba(255, 213, 79, 0.7); }
.pool-thumb.rank-3 { box-shadow: 0 0 8px 2px rgba(199, 122, 255, 0.8); }

.pool-thumb-card,
.pool-thumb-card img { width: 100%; height: 100%; border-radius: 4px; }

.pool-thumb-count {
  position: absolute;
  right: -4px;
  bottom: -4px;
  background: var(--gold);
  color: #10233c;
  font-size: 10px;
  font-weight: bold;
  border-radius: 8px;
  padding: 0 4px;
}