:root {
  --bg: #0b1020;
  --bg2: #121a33;
  --panel: #16203c;
  --panel2: #1d2950;
  --line: #2a3a66;
  --text: #e8eefc;
  --dim: #93a2c4;
  --gold: #e8c05a;
  --danger: #ff5d75;
  --ok: #4fd07a;
  --accent: #5aa9ff;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background: radial-gradient(1200px 700px at 50% -10%, #1b2a52 0%, var(--bg) 55%, #070b16 100%);
  color: var(--text);
  font: 15px/1.5 -apple-system, "Segoe UI", "Microsoft YaHei", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}

button { font: inherit; cursor: pointer; border: none; border-radius: 10px; transition: .15s; }
button:disabled { opacity: .45; cursor: not-allowed; }
.hidden { display: none !important; }
.dim { color: var(--dim); }
.small { font-size: 13px; }

/* ---------- 屏幕 ---------- */
.screen { display: none; min-height: 100vh; }
.screen.active { display: block; }

/* ---------- 登录 ---------- */
#screen-auth { display: none; place-items: center; padding: 24px; }
#screen-auth.active { display: grid; }

.auth-card {
  width: min(420px, 100%);
  background: linear-gradient(180deg, var(--panel), #111a33);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 28px;
  box-shadow: 0 30px 80px -30px #000, inset 0 1px 0 #ffffff12;
}

.logo { margin: 0 0 4px; font-size: 30px; letter-spacing: 2px; }
.logo span { color: var(--gold); }
.tagline { margin: 0 0 20px; color: var(--dim); font-size: 13px; letter-spacing: 1px; }

.tabs { display: flex; gap: 8px; margin-bottom: 16px; }
.tab {
  flex: 1; padding: 9px; background: #0e1730; color: var(--dim);
  border: 1px solid var(--line); border-radius: 10px;
}
.tab.active { background: var(--panel2); color: var(--text); border-color: var(--accent); }

#auth-form { display: grid; gap: 12px; }
#auth-form label { display: grid; gap: 6px; font-size: 13px; color: var(--dim); }
input {
  width: 100%; padding: 11px 12px; border-radius: 10px;
  background: #0a1229; color: var(--text);
  border: 1px solid var(--line); font: inherit;
}
input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px #5aa9ff22; }

.primary {
  padding: 12px; background: linear-gradient(180deg, #6fb6ff, #3a7bd5);
  color: #05122b; font-weight: 700;
}
.primary:hover:not(:disabled) { filter: brightness(1.1); }
.primary.big { padding: 16px 34px; font-size: 17px; }
.ghost { padding: 8px 14px; background: #1a2547; color: var(--text); border: 1px solid var(--line); }
.ghost:hover:not(:disabled) { background: #23305c; }

.msg { min-height: 20px; margin: 0; font-size: 13px; color: var(--danger); }
.msg.ok { color: var(--ok); }

.legal { margin: 18px 0 0; font-size: 11px; line-height: 1.7; color: var(--dim); }
.legal .dim { color: #66779c; }

/* ---------- 顶栏 ---------- */
.topbar {
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
  padding: 14px 22px; border-bottom: 1px solid var(--line);
  background: #0c132a; position: sticky; top: 0; z-index: 20;
}
.brand { font-weight: 700; letter-spacing: 2px; color: var(--gold); }
.nav { display: flex; gap: 6px; flex: 1; }
.navbtn { padding: 8px 16px; background: transparent; color: var(--dim); border-radius: 8px; }
.navbtn.active { background: var(--panel2); color: var(--text); }
.navbtn:hover { color: var(--text); }
.me { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--dim); }
.badge { font-size: 11px; padding: 2px 7px; border-radius: 20px; background: #3a2d10; color: var(--gold); border: 1px solid #6b5520; }
.badge.admin { background: #2a1a3a; color: #b47cff; border-color: #59347f; }

/* ---------- 视图 ---------- */
.view { display: none; padding: 22px; max-width: 1180px; margin: 0 auto; }
.view.active { display: block; }

.panel {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 16px; padding: 18px; margin-bottom: 18px;
}
.panel h3 { margin: 0 0 10px; font-size: 15px; letter-spacing: .5px; }
.panel h4 { margin: 0 0 8px; font-size: 13px; color: var(--dim); font-weight: 500; }

/* ---------- 计时 ---------- */
.timer-panel { text-align: center; padding: 30px 18px; }
.round-label { color: var(--dim); letter-spacing: 3px; font-size: 13px; }
.countdown { font-size: 62px; font-weight: 700; letter-spacing: 3px; font-variant-numeric: tabular-nums; margin: 4px 0 10px; }
.progress { height: 6px; background: #0b1128; border-radius: 99px; overflow: hidden; max-width: 520px; margin: 0 auto; }
.progress-bar { height: 100%; width: 0%; background: linear-gradient(90deg, var(--accent), var(--gold)); transition: width .3s linear; }
.hint { color: var(--dim); font-size: 12px; margin: 12px 0 0; }

.arena-actions { display: flex; gap: 12px; justify-content: center; margin-bottom: 20px; }

.lineup-row { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 8px; min-height: 92px; }
.slots { display: grid; gap: 16px; grid-template-columns: 1fr 1fr; }
@media (max-width: 700px) { .slots { grid-template-columns: 1fr; } }

/* ---------- 卡牌 ---------- */
.card {
  width: 96px; padding: 8px; border-radius: 12px; position: relative;
  background: linear-gradient(180deg, #1c2748, #131c36);
  border: 1px solid var(--line); cursor: pointer; user-select: none;
  transition: transform .12s, box-shadow .12s;
}
.card:hover { transform: translateY(-3px); box-shadow: 0 10px 24px -12px #000; }
.card.selected { outline: 2px solid var(--gold); }
.card .cname { font-size: 13px; font-weight: 600; margin-bottom: 2px; }
.card .cmeta { font-size: 11px; color: var(--dim); display: flex; justify-content: space-between; }
.card .qty {
  position: absolute; top: -6px; right: -6px; min-width: 20px; height: 20px;
  border-radius: 20px; background: var(--accent); color: #04122b;
  font-size: 11px; font-weight: 700; display: grid; place-items: center; padding: 0 5px;
}
.card .tier {
  font-size: 10px; letter-spacing: 1px; margin-bottom: 4px; display: flex; justify-content: space-between;
}
.card .stat { font-variant-numeric: tabular-nums; }
.card.hero { border-left: 3px solid var(--accent); }
.card.equip { border-left: 3px solid #b47cff; }
.t-empty { color: #46557a; font-size: 12px; display: grid; place-items: center; width: 96px; height: 92px; border: 1px dashed var(--line); border-radius: 12px; }

.card-grid { display: flex; flex-wrap: wrap; gap: 10px; }
.filters { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 12px; }
.chip { padding: 5px 12px; border-radius: 99px; background: #0e1730; color: var(--dim); border: 1px solid var(--line); font-size: 12px; }
.chip.active { background: var(--panel2); color: var(--text); border-color: var(--accent); }

/* ---------- 合成 ---------- */
.merge-row { display: flex; align-items: center; gap: 12px; padding: 9px 0; border-bottom: 1px solid #ffffff0d; font-size: 14px; }
.merge-row .tname { width: 90px; }
.merge-row .count { color: var(--dim); font-size: 13px; min-width: 90px; }

/* ---------- 费率表 ---------- */
.rates { width: 100%; border-collapse: collapse; font-size: 13px; }
.rates th, .rates td { text-align: left; padding: 9px 10px; border-bottom: 1px solid #ffffff0d; }
.rates th { color: var(--dim); font-weight: 500; }
.rules { padding-left: 20px; color: var(--dim); font-size: 13px; line-height: 2; }

/* ---------- 战报覆盖层 ---------- */
.overlay {
  position: fixed; inset: 0; z-index: 100; background: #050912;
  display: grid; grid-template-rows: auto 1fr auto;
}
.battle-head {
  display: flex; align-items: center; gap: 16px; padding: 12px 18px;
  border-bottom: 1px solid var(--line);
}
.battle-title { font-weight: 600; letter-spacing: 1px; }
.battle-status { flex: 1; color: var(--dim); font-size: 13px; }
.battle-foot { display: flex; align-items: center; gap: 16px; padding: 12px 18px; border-top: 1px solid var(--line); }
.battle-result { font-size: 14px; }
#battle-canvas { width: 100%; height: 100%; display: block; }
#hp-layer { position: absolute; inset: 0; pointer-events: none; }

.hpbar {
  position: absolute; width: 56px; transform: translate(-50%, -50%);
  font-size: 10px; text-align: center; color: #cfe0ff; text-shadow: 0 1px 2px #000;
}
.hpbar .bar { height: 4px; background: #000a; border-radius: 3px; overflow: hidden; margin-top: 2px; }
.hpbar .fill { height: 100%; background: var(--ok); transition: width .25s; }
.hpbar.dead { opacity: .25; }

.dmgtxt {
  position: absolute; transform: translate(-50%, -50%);
  font-weight: 700; font-size: 15px; color: #ff8fa3; text-shadow: 0 2px 6px #000;
  animation: floatUp .9s ease-out forwards; pointer-events: none;
}
.dmgtxt.crit { color: var(--gold); font-size: 20px; }
.dmgtxt.heal { color: var(--ok); }
@keyframes floatUp { to { transform: translate(-50%, -140%); opacity: 0; } }

@media (max-width: 600px) {
  .countdown { font-size: 44px; }
  .view { padding: 14px; }
  .card { width: 82px; }
  .topbar { padding: 10px 14px; }
}