/*
 * sts2_motion.css — 杀戮尖塔2风格动画的配套样式
 * 依赖：与 static/js/sts2_motion.js 配套；类名全部带 sts2- 前缀，不与现有样式冲突。
 * 视觉原则：卡牌剪影残影（无模糊无霓虹），牌背对齐游戏暗色牌背。
 */

/* ---------- 幽灵卡（飞行中的卡牌克隆） ---------- */
.sts2-ghost {
    position: fixed;
    pointer-events: none;
    margin: 0;
    transform-origin: 50% 50%;
    will-change: transform;
    /* 只有深度阴影，没有彩色辉光 */
    filter: drop-shadow(0 5px 10px rgba(0, 0, 0, 0.35));
}

/* 牌背：对齐游戏 .card-facedown 的暗色主题（#3d3d5c）+ 细边框 + 内衬线 */
.sts2-ghost .sts2-card-back {
    width: 100%;
    height: 100%;
    border-radius: 8px;
    background: #3d3d5c;
    border: 1.5px solid #56567a;
    box-sizing: border-box;
    position: relative;
}
.sts2-ghost .sts2-card-back::before {
    content: "";
    position: absolute;
    inset: 7%;
    border-radius: 5px;
    border: 1px solid rgba(160, 160, 190, 0.28);
}

/* ---------- 拖尾：卡牌剪影残影 ---------- */
.sts2-trail-card {
    position: fixed;
    pointer-events: none;
    z-index: 4150;
    border-radius: 10% / 7%;
    border: 1.5px solid var(--sts2-sliver-border, rgba(160, 128, 80, 0.55));
    background: var(--sts2-sliver-fill, rgba(160, 128, 80, 0.08));
    box-sizing: border-box;
    opacity: 0.66;
    animation: sts2SliverFade var(--sts2-trail-life, 340ms) ease-out forwards;
}
@keyframes sts2SliverFade {
    from { opacity: 0.66; transform: scale(1); }
    to { opacity: 0; transform: scale(0.5); }
}

/* ---------- 伤害数字 / 状态文字 ---------- */
.sts2-pop {
    position: fixed;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 9500;
    font-weight: 700;
    text-shadow:
        0 2px 0 rgba(0, 0, 0, 0.65),
        0 0 10px rgba(0, 0, 0, 0.4);
    animation: sts2PopBounce 240ms cubic-bezier(0.34, 1.56, 0.64, 1) both,
        sts2PopFloat 700ms 220ms ease-out forwards;
}
.sts2-pop-damage { color: #ffffff; }
.sts2-pop-crit { color: #ffd54a; }
.sts2-pop-status { color: #ff6b6b; font-size: 0.72em !important; letter-spacing: 0.04em; }
.sts2-pop-block { color: #6fd6ff; font-size: 0.8em !important; }
@keyframes sts2PopBounce {
    from { transform: translate(-50%, -50%) scale(1.25); opacity: 0; }
    to { transform: translate(-50%, -50%) scale(1); opacity: 1; }
}
@keyframes sts2PopFloat {
    from { margin-top: 0; opacity: 1; }
    to { margin-top: -34px; opacity: 0; }
}

/* ---------- 回合横幅（Player Turn / Enemy Turn） ---------- */
.sts2-banner {
    position: fixed;
    left: 50%;
    top: 34%;
    transform: translate(-50%, -50%);
    z-index: 9400;
    pointer-events: none;
    text-align: center;
    font-family: Georgia, "Times New Roman", "Noto Serif SC", serif;
    animation: sts2BannerLife var(--sts2-banner-ms, 1800ms) ease both;
}
.sts2-banner .sts2-banner-main {
    font-size: 52px;
    font-weight: 700;
    letter-spacing: 0.04em;
    color: #f5d67b;
    text-shadow: 0 3px 0 rgba(0, 0, 0, 0.7), 0 0 24px rgba(245, 214, 123, 0.4);
}
.sts2-banner .sts2-banner-sub {
    margin-top: 4px;
    font-size: 18px;
    color: #d8cba4;
    text-shadow: 0 2px 0 rgba(0, 0, 0, 0.6);
}
.sts2-banner.enemy .sts2-banner-main {
    color: #e8a13c;
    text-shadow: 0 3px 0 rgba(0, 0, 0, 0.7), 0 0 24px rgba(232, 120, 60, 0.45);
}
@keyframes sts2BannerLife {
    0% { opacity: 0; transform: translate(-50%, -50%) scale(0.92); }
    12% { opacity: 1; transform: translate(-50%, -50%) scale(1); }
    80% { opacity: 1; }
    100% { opacity: 0; transform: translate(-50%, -52%) scale(1.02); }
}

/* ---------- 能量不足气泡 ---------- */
.sts2-speech {
    position: fixed;
    z-index: 9450;
    pointer-events: none;
    padding: 6px 14px;
    border-radius: 10px;
    background: rgba(30, 34, 44, 0.92);
    border: 1px solid rgba(255, 255, 255, 0.18);
    color: #cfd4dd;
    font: 14px/1.4 system-ui, sans-serif;
    animation: sts2SpeechLife 1400ms ease both;
}
@keyframes sts2SpeechLife {
    0% { opacity: 0; transform: translateY(6px); }
    12% { opacity: 1; transform: translateY(0); }
    80% { opacity: 1; }
    100% { opacity: 0; }
}

/* ---------- 演示页用：牌堆图标按钮 + 右侧牌堆轨道 ---------- */
.sts2-pile-btn {
    position: relative;
    width: 54px;
    height: 54px;
    padding: 0;
    border: none;
    background: transparent;
    cursor: pointer;
    transition: transform 120ms ease, filter 120ms ease;
}
.sts2-pile-btn img,
.sts2-pile-btn svg {
    width: 100%;
    height: 100%;
    display: block;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.45));
}
.sts2-pile-btn:hover { transform: translateY(-2px) scale(1.06); filter: brightness(1.15); }
.sts2-pile-btn:active { transform: translateY(0) scale(0.97); }
.sts2-pile-count {
    position: absolute;
    right: -4px;
    bottom: -2px;
    min-width: 22px;
    height: 22px;
    padding: 0 5px;
    border-radius: 11px;
    background: #56617a;
    color: #fff;
    font: 700 13px/22px system-ui, sans-serif;
    text-align: center;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.3);
}
.pile-rail.discard-rail { left: auto; right: 18px; }