:root {
  --bg: #0f172a;
  --card: #111827;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --primary: #22c55e;
  --table-border: #1f2937;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); }
.container { max-width: 960px; margin: 40px auto; padding: 24px; background: var(--card); border-radius: 12px; box-shadow: 0 8px 24px rgba(0,0,0,0.35); }
h1 { margin: 0 0 8px; font-size: 28px; }
.subtitle { margin: 0 0 16px; color: var(--muted); }
.empty { padding: 16px; background: #0b1220; border: 1px solid var(--table-border); border-radius: 8px; }

.rank-table { width: 100%; border-collapse: collapse; }
.rank-table th, .rank-table td { border-bottom: 1px solid var(--table-border); padding: 12px 10px; text-align: left; }
.rank-table thead th { color: var(--muted); font-weight: 600; }
.rank-table tbody tr:hover { background: #0b1220; }

.admin-wrap { max-width: 960px; margin: 40px auto; padding: 24px; background: var(--card); border-radius: 12px; }
.admin-top { display: flex; gap: 12px; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.btn { display: inline-block; padding: 8px 14px; border-radius: 8px; border: 1px solid var(--table-border); color: var(--text); text-decoration: none; background: #0b1220; cursor: pointer; }
.btn.primary { border-color: #14532d; background: #052e1a; color: #a7f3d0; }
.btn.danger { border-color: #7f1d1d; background: #1b0d0d; color: #fecaca; }

.form-grid { display: grid; grid-template-columns: 1fr 1fr 160px 120px; gap: 8px; }
.form-grid input { width: 100%; padding: 8px 10px; border-radius: 8px; border: 1px solid var(--table-border); background: #0b1220; color: var(--text); }
.row-form { display: grid; grid-template-columns: 1.4fr 1.4fr 0.8fr 0.8fr 0.6fr; gap: 8px; margin: 8px 0; }
.row-form input { width: 100%; padding: 8px 10px; border-radius: 8px; border: 1px solid var(--table-border); background: #0b1220; color: var(--text); }
.form-grid select, .row-form select { width: 100%; padding: 8px 10px; border-radius: 8px; border: 1px solid var(--table-border); background: #0b1220; color: var(--text); }
.row-actions { display: flex; gap: 8px; }
.msg { margin-bottom: 12px; padding: 10px 12px; border-radius: 8px; background: #0b1220; border: 1px solid var(--table-border); }

.login-card { max-width: 420px; margin: 80px auto; padding: 24px; background: var(--card); border-radius: 12px; box-shadow: 0 8px 24px rgba(0,0,0,0.35); }
.login-card h2 { margin: 0 0 8px; }
.login-card .field { margin: 10px 0; }
.login-card input { width: 100%; padding: 10px 12px; border-radius: 8px; border: 1px solid var(--table-border); background: #0b1220; color: var(--text); }
.login-card .actions { display: flex; gap: 8px; margin-top: 12px; }

/* 导航样式 */
.nav { position: sticky; top: 0; z-index: 10; backdrop-filter: blur(8px); background: rgba(17, 24, 39, 0.8); border-bottom: 1px solid var(--table-border); box-shadow: 0 6px 16px rgba(0,0,0,0.25); }
.nav::after { content: ""; display: block; height: 2px; background: linear-gradient(90deg, #22c55e, #06b6d4, #a78bfa); opacity: 0.9; }
.nav-inner { max-width: 960px; margin: 0 auto; padding: 12px 24px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: 0.2px; }
.logo-ball { font-size: 22px; filter: drop-shadow(0 2px 4px rgba(0,0,0,0.4)); }
.counter { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 999px; font-size: 12px; color: #a7f3d0; background: #052e1a; border: 1px solid #14532d; }
.counter::before { content: "人数"; color: #22c55e; font-weight: 600; }
.nav a { color: var(--text); text-decoration: none; margin-left: 14px; padding: 8px 12px; border-radius: 10px; transition: all .15s ease; border: 1px solid transparent; }
.nav a:hover { background: #0b1220; transform: translateY(-1px); }
.nav a.active { border-color: #14532d; background: #052e1a; color: #a7f3d0; box-shadow: 0 2px 0 #14532d inset; }

@media (max-width: 520px) {
  .nav-inner { flex-direction: column; align-items: flex-start; gap: 8px; }
  .nav a { margin-left: 0; margin-right: 10px; }
}

/* 状态徽标 */
.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px; line-height: 1; border: 1px solid var(--table-border); }
.badge.warning { color: #fdba74; background: #1f130a; border-color: #7c2d12; }
.badge.muted { color: var(--muted); background: #0b1220; }

/* 弹窗 */
.modal-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,0.55); display: none; align-items: center; justify-content: center; z-index: 50; }
.modal-backdrop.show { display: flex; }
.modal-card { width: 440px; max-width: 92vw; background: var(--card); border: 1px solid var(--table-border); border-radius: 12px; box-shadow: 0 14px 30px rgba(0,0,0,0.45); padding: 18px; }
.modal-title { font-size: 18px; margin: 0 0 10px; }
.modal-desc { color: var(--muted); margin-bottom: 12px; }
.modal-card input { width: 100%; padding: 10px 12px; border-radius: 8px; border: 1px solid var(--table-border); background: #0b1220; color: var(--text); }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 12px; }

/* 卡片列表 */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; }
.card { display: block; padding: 14px; border-radius: 12px; background: #0b1220; border: 1px solid var(--table-border); text-decoration: none; color: var(--text); transition: transform .12s ease, box-shadow .12s ease; }
.card:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(0,0,0,0.3); }
.card-top { display: flex; justify-content: flex-end; align-items: center; margin-bottom: 6px; }
.card-title { font-size: 18px; font-weight: 600; margin: 6px 0; }
.card-meta { color: var(--muted); font-size: 13px; margin-top: 2px; }

/* 排行前三样式 */
.rank-table tbody tr.top1 { box-shadow: inset 3px 0 0 #f59e0b; background: #0b1220; }
.rank-table tbody tr.top2 { box-shadow: inset 3px 0 0 #9ca3af; background: #0b1220; }
.rank-table tbody tr.top3 { box-shadow: inset 3px 0 0 #c2410c; background: #0b1220; }
.medal { display: inline-block; margin-left: 8px; padding: 3px 8px; border-radius: 999px; font-size: 12px; line-height: 1; border: 1px solid var(--table-border); }
.medal.gold { color: #fde68a; background: #1f1605; border-color: #78350f; }
.medal.silver { color: #e5e7eb; background: #1e293b; border-color: #475569; }
.medal.bronze { color: #fed7aa; background: #1f130a; border-color: #7c2d12; }