/* ---------- 主题变量：默认深色，[data-theme="light"] 覆盖为浅色 ---------- */
:root {
  --bg: radial-gradient(circle at 50% -10%, #1c1c22 0%, #09090b 60%);
  --fg: #f5f5f7;
  --muted: #86868b;
  --row-bg: rgba(255, 255, 255, 0.05);
  --row-border: rgba(255, 255, 255, 0.08);
  --row-shadow: none;
  --score: #ffffff;
  --pending: #48484a;
  --empty: #6e6e73;
  /* 奖牌强调色（随主题微调以保证对比度） */
  --gold: #ffd666;
  --silver: #c7cad1;
  --bronze: #e6a06b;
}

:root[data-theme="light"] {
  --bg: radial-gradient(circle at 50% -10%, #ffffff 0%, #eceef2 65%);
  --fg: #1d1d1f;
  --muted: #6e6e73;
  --row-bg: rgba(255, 255, 255, 0.72);
  --row-border: rgba(0, 0, 0, 0.06);
  --row-shadow: 0 1px 3px rgba(0, 0, 0, 0.05), 0 10px 30px rgba(0, 0, 0, 0.06);
  --score: #1d1d1f;
  --pending: #b8b8be;
  --empty: #86868b;
  --gold: #c8961a;
  --silver: #8a8f99;
  --bronze: #b26a37;
}

body {
  background: var(--bg);
  color: var(--fg);
  overflow: hidden;
  transition: background 0.5s ease, color 0.5s ease;
}

.stage {
  height: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: clamp(2rem, 5vh, 5rem) clamp(1.5rem, 4vw, 4rem);
  display: flex;
  flex-direction: column;
  position: relative;
}

.stage-head {
  text-align: center;
  margin-bottom: clamp(1.5rem, 4vh, 3.5rem);
}

.title {
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.subtitle {
  margin-top: 0.6rem;
  font-size: clamp(0.9rem, 1.4vw, 1.15rem);
  color: var(--muted);
  font-weight: 400;
}

.board {
  list-style: none;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: clamp(0.6rem, 1.4vh, 1rem);
  position: relative;
}

.row {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: clamp(1rem, 2.5vw, 2rem);
  padding: clamp(0.9rem, 2vh, 1.6rem) clamp(1.3rem, 3vw, 2.2rem);
  background: var(--row-bg);
  border: 1px solid var(--row-border);
  box-shadow: var(--row-shadow);
  border-radius: 20px;
  backdrop-filter: blur(20px);
  transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1),
    background 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
  will-change: transform;
}

/* ---------- 前三名奖牌特效 ---------- */
.row.top1,
.row.top2,
.row.top3 {
  border-width: 1px;
}

.row.top1 {
  background: linear-gradient(100deg, rgba(255, 200, 60, 0.18), rgba(255, 200, 60, 0.03));
  border-color: rgba(255, 200, 60, 0.45);
  animation: glow-gold 2.6s ease-in-out infinite;
}

.row.top2 {
  background: linear-gradient(100deg, rgba(180, 186, 198, 0.16), rgba(180, 186, 198, 0.02));
  border-color: rgba(180, 186, 198, 0.4);
  box-shadow: var(--row-shadow), 0 0 18px rgba(180, 186, 198, 0.15);
}

.row.top3 {
  background: linear-gradient(100deg, rgba(214, 140, 80, 0.16), rgba(214, 140, 80, 0.02));
  border-color: rgba(214, 140, 80, 0.4);
  box-shadow: var(--row-shadow), 0 0 18px rgba(214, 140, 80, 0.15);
}

/* 第一名：金色呼吸光晕 */
@keyframes glow-gold {
  0%,
  100% {
    box-shadow: var(--row-shadow), 0 0 20px rgba(255, 200, 60, 0.16);
  }
  50% {
    box-shadow: var(--row-shadow), 0 0 36px rgba(255, 200, 60, 0.34);
  }
}

/* 第一名：斜向光泽扫过 */
.row.top1::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(
    105deg,
    transparent 30%,
    rgba(255, 255, 255, 0.22) 50%,
    transparent 70%
  );
  transform: translateX(-120%);
  animation: shine 3.6s ease-in-out infinite;
  pointer-events: none;
}

@keyframes shine {
  0% {
    transform: translateX(-120%);
  }
  55%,
  100% {
    transform: translateX(120%);
  }
}

.rank {
  font-size: clamp(1.3rem, 2.6vw, 2.1rem);
  font-weight: 600;
  color: var(--muted);
  min-width: clamp(2.2rem, 4vw, 3.2rem);
  text-align: center;
}

.top1 .rank {
  color: var(--gold);
}
.top2 .rank {
  color: var(--silver);
}
.top3 .rank {
  color: var(--bronze);
}

.name {
  font-size: clamp(1.4rem, 3vw, 2.4rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.score {
  font-size: clamp(2rem, 4.6vw, 3.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--score);
}

.score.pending {
  color: var(--pending);
  font-weight: 500;
}

.empty {
  margin: auto;
  color: var(--empty);
  font-size: 1.3rem;
}

.conn {
  position: absolute;
  bottom: 1.4rem;
  right: 1.6rem;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #30d158;
  box-shadow: 0 0 10px rgba(48, 209, 88, 0.7);
  transition: background 0.3s, box-shadow 0.3s;
}

.conn.off {
  background: #ff453a;
  box-shadow: 0 0 10px rgba(255, 69, 58, 0.7);
}

/* 尊重系统的“减少动态效果”偏好 */
@media (prefers-reduced-motion: reduce) {
  .row,
  .row.top1,
  .row.top1::after {
    animation: none;
    transition: background 0.3s ease, border-color 0.3s ease;
  }
}