/* assets/css/pages/single.css */

/* 背景统一：完全继承 base.css 的高级暗场 */
body{ background: var(--gx-bg) !important; }

/* ===== Topbar 特有样式 (通用样式已移至 ui.css) ===== */
.top-actions{ display: flex; gap: 8px; }

.nav-item{
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  min-width: 40px;
  user-select: none;
}

.nav-label{
  font-size: 12px;
  color: rgba(255,255,255,0.6);
  white-space: nowrap;
  text-shadow: 0 1px 2px rgba(0,0,0,0.8);
  transition: color 0.2s;
}
.nav-item:hover .nav-label{ color: rgba(255,255,255,0.9); }
.nav-item:active .nav-label{ color: var(--accent); }

.slider-box{
  height: 42px;
  display: flex;
  align-items: center;
  background: rgba(0,0,0,0.4);
  padding: 0 10px;
  border-radius: 21px;
  border: 1px solid var(--border);
  margin-right: 4px;
  touch-action: pan-y;
}

/* ===== Stage ===== */
#stage{
  position: absolute;
  inset: 90px 10px 46px 10px;
  overflow: hidden;
  touch-action: none;
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: 1fr;
  grid-template-areas: "show";
}

#show-zone{
  grid-area: show;
  position: relative;
  overflow: hidden;
  border-radius: var(--gx-radius-lg);
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(0,0,0,0.22);
  backdrop-filter: blur(10px);
  box-shadow: var(--gx-shadow-md);

  /* 水印自适应（随 --card-w 变化） */
  --wm-logo: clamp(56px, calc(var(--card-w) * 2), 500px);
  --wm-text: clamp(20px, calc(var(--card-w) * 0.5), 100px);
}
#show-zone::before{
  content:"";
  position:absolute;
  inset:0;
  border-radius: inherit;
  pointer-events:none;
  background:
    radial-gradient(circle at 50% 35%, rgba(120,190,255,0.10), rgba(0,0,0,0) 55%),
    linear-gradient(180deg, rgba(255,255,255,0.05), rgba(0,0,0,0));
  opacity: 0.8;
}

/* 中心水印：Logo + 自定义文案 */
.stage-watermark{
  position:absolute;
  inset:0;
  display:flex;
  flex-direction: column;
  align-items:center;
  justify-content:center;
  gap: calc(var(--card-w) * 0.10);
  pointer-events:none;
  z-index: 1;
}
.stage-logo{
  width: var(--wm-logo);
  height: auto;
  opacity: 0.10;
  filter: grayscale(1) brightness(1.6) blur(2px);
}
.stage-tagline{
  font-size: var(--wm-text);
  letter-spacing: 0.18em;
  font-family: "LingDongQiCheChunTang", "HanSerif", serif;
  color: rgba(255,255,255,0.18);
  text-shadow: 0 8px 22px rgba(0,0,0,0.55);
  text-align: center;
  padding: 0 18px;
  line-height: 1.25;
  filter: blur(0.8px);
  opacity: 0.8;
  font-weight: 100;
}

/* ===== Deck corner ===== */
#deck-corner{
  position: absolute;
  top: 0;
  right: 20px;
  display: flex;
  gap: 12px;
  align-items: flex-start;
  z-index: 5;
  pointer-events: auto;
}

.group-slot{
  width: var(--card-w);
  height: var(--card-h);
  border-radius: var(--card-r);
  border: 2px dashed rgba(255,255,255,0.22);
  background: rgba(255,255,255,0.03);
  display: flex;
  align-items: center;
  justify-content: center;
  user-select: none;
  pointer-events: auto;
}

/* ===== Pile animations & deck stack (已修复冲突) ===== */

/* 1. 关键帧定义 */
@keyframes deck-drop-in{
  0%{ opacity:0; transform: translateY(-150%); }
  60%{ opacity:1; transform: translateY(-55%); }
  80%{ transform: translateY(-68%); }
  100%{ opacity:1; transform: translateY(-65%); }
}
@keyframes deck-shuffle-v{
  0%{ transform: translateY(-65%); }
  25%{ transform: translateY(-72%); }
  50%{ transform: translateY(-58%); }
  75%{ transform: translateY(-68%); }
  100%{ transform: translateY(-65%); }
}
@keyframes pile-breathe-var{
  0%, 100% { --pile-breathe: 0%; }
  50%      { --pile-breathe: -5%; }
}

/* 2. 注册 CSS 变量 (用于平滑过渡) */
@property --pile-breathe {
  syntax: '<length-percentage>';
  inherits: false;
  initial-value: 0%;
}
@property --pile-lift {
  syntax: '<length-percentage>';
  inherits: false;
  initial-value: 0px;
}

/* 3. Pile 基础样式 */
.pile-stack{
  width: var(--card-w);
  height: var(--card-h);
  position: relative;
  opacity: 0;
  transform: translateY(-150%);
  pointer-events: auto;
  z-index: 50;
}

/* 4. 状态与动画逻辑 */
.pile-stack.anim-entering{ 
  animation: deck-drop-in 0.8s cubic-bezier(0.22,0.61,0.36,1) forwards; 
}

/* 待机状态：使用变量控制位置，解决冲突的核心 */
.pile-stack.anim-idle{
  opacity: 1;
  --pile-breathe: 0%;
  --pile-lift: 0px;

  /* 位置由：基准(-65%) + 呼吸变量 + 抬起变量 共同决定 */
  transform: translateY(calc(-65% + var(--pile-breathe) + var(--pile-lift)));

  /* 动画仅修改变量，不修改 transform */
  animation: pile-breathe-var 4s ease-in-out infinite;

  transition: --pile-lift 0.55s cubic-bezier(0.22, 1, 0.36, 1);
  
  /* 性能优化：告诉浏览器 transform 会经常变 */
  will-change: transform;
}

/* 悬停状态：只修改 lift 变量，动画继续运行 */
.pile-stack.anim-idle:hover{
  --pile-lift: calc(var(--card-w) * 0.25);
}

.pile-stack.pile-empty{ 
  animation: none; 
  opacity: 1; 
  transform: translateY(-65%); 
}

.pile-stack.shaking{ 
  animation: deck-shuffle-v 0.15s ease-in-out infinite !important; 
  filter: brightness(1.2); 
  cursor: grabbing; 
}

/* 5. 牌堆厚度效果 */
.pile-stack::before, .pile-stack::after{
  content:"";
  position:absolute;
  inset:0;
  border-radius: var(--card-r);
  background-image: var(--back);
  background-size: 100% 100%;
  background-repeat:no-repeat;
  background-position:center;
  box-shadow: 2px 4px 6px rgba(0,0,0,0.35);
  pointer-events:none;
  opacity: 0;
}
.pile-stack::before{
  opacity: clamp(0, calc((var(--stack) - 3) * 0.12), 0.22);
  transform: translate(
    clamp(0px, calc((var(--stack) - 1) * 1px), 10px),
    clamp(0px, calc((var(--stack) - 1) * -1px), -10px)
  );
  filter: blur(0.2px);
}
.pile-stack::after{
  opacity: clamp(0, calc((var(--stack) - 8) * 0.10), 0.18);
  transform: translate(
    clamp(0px, calc((var(--stack) - 1) * 2px), 16px),
    clamp(0px, calc((var(--stack) - 1) * -2px), -16px)
  );
  filter: blur(0.4px);
}

.deck-pile{
  position:absolute;
  inset:0;
  border-radius: var(--card-r);
  background-image: var(--back);
  background-size: 100% 100%;
  background-repeat:no-repeat;
  background-position:center;
  box-shadow: 2px 4px 6px rgba(0,0,0,0.35);
  cursor: pointer;
  transition: transform .15s ease, opacity .2s ease;
}
.deck-pile:hover{ transform: scale(1.02); }
.pile-empty .deck-pile{ cursor: default; opacity: 0.10; box-shadow: none; transform: none; }

/* ===== Card ===== */
.card{
  width: var(--card-w);
  height: var(--card-h);
  border-radius: var(--card-r);
  position: absolute;
  top: 0; left: 0;
  transform-origin: center center;
  user-select: none;
  touch-action: none;
  cursor: grab;
  z-index: 10;
  will-change: transform;
  perspective: 1000px;
}
.card.dragging{ cursor: grabbing; }
.card::after{
  content:"";
  position:absolute;
  inset:0;
  border-radius: inherit;
  box-shadow: 0 0 0 2px rgba(120,190,255,0.75), 0 0 16px rgba(120,190,255,0.35);
  opacity: 0;
  pointer-events:none;
  transition: opacity .15s ease;
}
.card:hover::after{ opacity: 1; }

.card-inner{
  width: 100%;
  height: 100%;
  transition: transform 0.6s;
  transform-style: preserve-3d;
}
.card.flipped .card-inner{ transform: rotateY(180deg); }

.card-front, .card-back{
  position:absolute;
  inset:0;
  backface-visibility: hidden;
  border-radius: var(--card-r);
  background-size: 100% 100%;
  background-position:center;
  background-repeat:no-repeat;
  box-shadow: 0 2px 6px rgba(0,0,0,0.35);
}
.card-back{ transform: rotateY(180deg); }

.rotator-top, .rotator-bottom{
  position:absolute;
  left:0;
  width:100%;
  height:20%;
  z-index: 999;
  cursor: crosshair;
  background: rgba(255,0,0,0.0001);
}
.rotator-top{ top:0; }
.rotator-bottom{ bottom:0; }

/* ===== Zoom / Detail ===== */

@media (max-width: 600px){
  .pile-stack.anim-idle{
    transform: translateY(calc(-40% + var(--pile-breathe) + var(--pile-lift)));
    /* 保持原来的动画，不替换 */
    animation: pile-breathe-var 4s ease-in-out infinite;
  }
}


.btn.active{
  background: var(--accent) !important;
  color: #000 !important;
  box-shadow: 0 0 12px rgba(120,190,255,0.5);
  border-color: var(--accent) !important;
}

/* === Selection (框选) === */
.gx-selection-box{
  position: absolute;
  top: 0; left: 0;
  border: 1px solid rgba(120,190,255,0.8);
  background: rgba(120,190,255,0.15);
  z-index: 9999;
  pointer-events: none;
  will-change: transform, width, height;
}

/* 选中态高亮 */
.card.selected::before{
  content: "";
  position: absolute;
  inset: -3px;
  border-radius: calc(var(--card-r) + 4px);
  border: 3px solid #ffcc00;
  box-shadow: 0 0 10px rgba(255,215,0,0.9),
              0 0 25px rgba(255,200,0,0.6);
  pointer-events: none;
  z-index: 100;
  animation: select-pulse 2s infinite;
}
@keyframes select-pulse{
  0%,100%{ opacity: 1; }
  50%{ opacity: 0.6; }
}

/* === Deck Grid Overlay (牌库一览) === */
.gx-grid-overlay{
  position: fixed; inset: 0; z-index: 5000;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none; transition: opacity 0.3s;
}
.gx-grid-overlay.active{ opacity: 1; pointer-events: auto; }

.gx-grid-container{
  width: 90%; max-width: 1000px;
  max-height: 85vh;
  display: flex; flex-direction: column;
  transform: scale(0.8); opacity: 0;
  transition: transform 0.4s cubic-bezier(0.16,1,0.3,1), opacity 0.3s;
}
.gx-grid-container.animate-in{ transform: scale(1); opacity: 1; }

.gx-grid-header{
  text-align: center; color: var(--accent); font-size: 14px;
  margin-bottom: 20px; letter-spacing: 2px;
  text-shadow: 0 2px 10px rgba(0,0,0,0.5);
}

.gx-grid-body{
  flex: 1;
  overflow-y: auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
  gap: 20px;
  padding: 20px;
  scrollbar-width: none;
}
.gx-grid-body::-webkit-scrollbar{ display: none; }

.gx-grid-item{
  aspect-ratio: calc(1 / var(--card-aspect-ratio)); 
    border-radius: 6px;
  background-size: 100% 100%;
  background-position: center;
  background-repeat: no-repeat;
  cursor: pointer;
  box-shadow: 0 4px 10px rgba(0,0,0,0.5);
  opacity: 0;
  transform: translateY(20px);
  animation: grid-card-enter 0.5s cubic-bezier(0.2,0.8,0.2,1) forwards;
  animation-delay: var(--delay);
  transition: transform 0.2s, box-shadow 0.2s;
}
.gx-grid-item:hover{
  transform: scale(1.15) translateY(-5px) !important;
  box-shadow: 0 10px 25px rgba(120,190,255,0.4);
  z-index: 10;
  filter: brightness(1.1);
}
@keyframes grid-card-enter{
  to{ opacity: 1; transform: translateY(0); }
}