/* 青云问道 · 论道台（竞技场 PVP）面板样式
 *
 * 契约：docs/竞技场PVP设计-v8.0.md 第七节（state.arena 结构）
 * 只使用 style.css 的既有设计令牌：--ink* / --gold* / --jade* / --cinnabar /
 * --paper / --mute* / --font-serif / --font-sans / --ease。
 *
 * ⚠️ 不新增颜色变量，也不引入新的字面色值。
 *    需要「更淡的金」时用 rgba(201,168,106,α) 叠同一支金，
 *    需要「更淡的朱砂」时同理 —— 色相不跑偏，与 rogue.css / trade.css 的做法一致。
 *
 * 类名前缀一律 arena-，平铺 kebab-case（不用 BEM）。
 * 战斗区复用 style.css 的 .bt-wrap / .bt-bars / .bt-hpbar / .bt-manabar / .bt-log /
 * .bt-act / .bt-skill / .bt-round，保证「同一个战斗」在红尘、逐境台、论道台长得一样。
 */

/* ═══════════ 通用 ═══════════ */
.arena-empty {
  font-size: 12.5px; color: var(--mute); letter-spacing: .1em;
  padding: 14px 0 18px;
}

.arena-section-head {
  font-family: var(--font-serif); font-size: 13px; letter-spacing: .26em;
  color: var(--gold-dim); padding: 22px 0 12px;
  border-bottom: 1px solid rgba(255,255,255,.05); margin-bottom: 14px;
  display: flex; align-items: baseline; gap: 16px; flex-wrap: wrap;
}
.arena-section-note { font-size: 11px; color: var(--mute-2); letter-spacing: .08em; }

/* 行内按钮：不要继承 .btn-jade / .btn-ghost 的 margin-top 与整行宽度 */
.arena-board-acts .btn-jade, .arena-board-acts .btn-ghost,
.arena-target .btn-jade, .arena-reward-card .btn-jade,
.arena-result-acts .btn-jade, .arena-top .btn-ghost {
  margin-top: 0; text-align: center; flex-shrink: 0;
}

/* ═══════════ 数据未到的降级提示 ═══════════ */
.arena-hint {
  display: flex; align-items: center; gap: 24px;
  padding: 30px 24px; margin-bottom: 34px;
  border: 1px dashed rgba(255,255,255,.055); border-radius: 2px;
}
.arena-hint-brush {
  font-family: var(--font-serif); font-size: 34px; color: rgba(201,168,106,.16);
  writing-mode: vertical-rl; line-height: 1;
}
.arena-hint p {
  margin: 0; font-family: var(--font-serif); font-size: 14px;
  letter-spacing: .18em; color: var(--mute); line-height: 2;
}
.arena-hint small { font-size: 11.5px; color: var(--mute-2); letter-spacing: .08em; }

/* ═══════════ 抬头 ═══════════ */
.arena-intro { margin-bottom: 34px; }
.arena-intro-title {
  font-family: var(--font-serif); font-size: 26px; letter-spacing: .3em;
  color: var(--gold-bright); margin-bottom: 14px;
}
.arena-intro-desc {
  font-family: var(--font-serif); font-size: 14px; letter-spacing: .1em;
  color: var(--paper); line-height: 2; opacity: .82; max-width: 40em;
}
.arena-intro-note {
  font-size: 11.5px; color: var(--mute); letter-spacing: .08em;
  line-height: 1.9; margin-top: 10px; max-width: 46em;
}

/* 未解锁（朱砂，与逐境台 / 交易预检提示同一支） */
.arena-lock {
  border: 1px solid rgba(184,80,63,.5); border-left-width: 2px; border-radius: 2px;
  background: linear-gradient(90deg, rgba(255,255,255,.02), transparent);
  color: var(--cinnabar); padding: 12px 16px; margin-bottom: 22px;
  font-size: 13px; letter-spacing: .06em; line-height: 1.8;
}

/* ═══════════ 待领的日终奖励 ═══════════ */
.arena-reward-card {
  border: 1px solid var(--gold-faint); border-left: 2px solid var(--gold-dim);
  border-radius: 2px;
  background: linear-gradient(180deg, rgba(201,168,106,.045), transparent);
  padding: 16px 20px 18px; margin-bottom: 26px;
}
.arena-reward-head { display: flex; align-items: baseline; gap: 14px; margin-bottom: 12px; }
.arena-reward-title {
  font-family: var(--font-serif); font-size: 14px; letter-spacing: .24em;
  color: var(--gold-bright);
}
.arena-reward-date { font-size: 11px; color: var(--mute); letter-spacing: .08em; }
.arena-reward-items { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 12px; }
.arena-reward-chip {
  display: flex; align-items: baseline; gap: 8px;
  border: 1px solid rgba(255,255,255,.07); border-radius: 2px;
  background: rgba(255,255,255,.018); padding: 6px 12px;
}
.arena-reward-name { font-size: 12.5px; color: var(--paper); letter-spacing: .06em; }
.arena-reward-qty {
  font-family: var(--font-serif); font-size: 13px; color: var(--gold-bright);
}
.arena-reward-note { font-size: 11px; color: var(--mute-2); letter-spacing: .06em; margin-bottom: 12px; }
.arena-reward-titles { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 12px; }
.arena-reward-title-chip {
  font-family: var(--font-serif); font-size: 12px; letter-spacing: .12em;
  color: var(--gold-bright);
  border: 1px solid rgba(201,168,106,.28); border-radius: 2px; padding: 2px 10px;
}

/* 我的战力（与对手 power 同口径） */
.arena-mypower {
  display: flex; align-items: center; gap: 26px; flex-wrap: wrap;
  padding: 12px 18px; margin: 18px 0 4px;
  border: 1px solid var(--gold-faint); border-radius: 2px;
  background: linear-gradient(180deg, rgba(201,168,106,.035), transparent);
}
.arena-mypower .arena-fact-value {
  font-family: var(--font-serif); font-size: 15px; color: var(--gold-bright);
}

/* ═══════════ 榜卡片 ═══════════ */
.arena-boards {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 18px;
}
.arena-board {
  display: flex; flex-direction: column; gap: 12px;
  border: 1px solid rgba(255,255,255,.06); border-radius: 2px;
  background: linear-gradient(170deg, rgba(255,255,255,.022), transparent);
  padding: 22px 24px 20px;
  transition: border-color .5s var(--ease);
}
.arena-board:hover { border-color: var(--gold-dim); }
/* 快照失效：左缘一道朱砂 */
.arena-board.arena-stale { border-left: 2px solid rgba(184,80,63,.55); }

.arena-board-head { display: flex; align-items: baseline; justify-content: space-between; gap: 14px; }
.arena-board-name {
  font-family: var(--font-serif); font-size: 19px; letter-spacing: .2em;
  color: var(--gold-bright);
}
.arena-board-rank {
  font-family: var(--font-serif); font-size: 13px; letter-spacing: .1em;
  color: var(--mute); white-space: nowrap;
}
.arena-board-rank.on { color: var(--jade); }
.arena-board-desc {
  font-size: 12.5px; color: var(--paper); line-height: 1.9;
  letter-spacing: .04em; opacity: .78;
}

.arena-snapshot {
  font-size: 11.5px; color: var(--mute-2); letter-spacing: .06em; line-height: 1.8;
  border-left: 1px solid rgba(255,255,255,.06); padding-left: 10px;
}
.arena-snapshot.bad { color: var(--cinnabar); }

.arena-tries {
  display: grid; grid-template-columns: 1fr 1fr; gap: 6px 16px;
  padding-top: 10px; border-top: 1px solid rgba(255,255,255,.04);
}
.arena-fact { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; }
.arena-fact-label {
  font-family: var(--font-serif); font-size: 11px; letter-spacing: .18em; color: var(--mute-2);
  white-space: nowrap;
}
.arena-fact-value { font-size: 12px; color: var(--gold); letter-spacing: .04em; white-space: nowrap; }

/* 奖励档位表 */
.arena-rewards {
  border-top: 1px solid rgba(255,255,255,.04); padding-top: 10px;
  display: flex; flex-direction: column; gap: 4px;
}
.arena-rewards-head {
  font-family: var(--font-serif); font-size: 11px; letter-spacing: .2em;
  color: var(--mute-2); margin-bottom: 4px;
}
.arena-tier {
  display: flex; align-items: baseline; justify-content: space-between; gap: 12px;
  font-size: 11.5px; line-height: 1.8;
}
.arena-tier-rank {
  font-family: var(--font-serif); color: var(--mute); letter-spacing: .06em;
  white-space: nowrap; min-width: 5em;
}
.arena-tier-value { display: flex; gap: 10px; flex-wrap: wrap; justify-content: flex-end; }
.arena-tier-stones { color: var(--gold); letter-spacing: .04em; }
.arena-tier-item { color: var(--jade); letter-spacing: .04em; }
.arena-tier-title { color: var(--gold-bright); letter-spacing: .06em; }

.arena-board-acts {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding-top: 14px; margin-top: 2px; border-top: 1px solid rgba(255,255,255,.05);
}

/* ═══════════ tab（两榜切换） ═══════════ */
.arena-tabs {
  display: flex; gap: 2px; flex-wrap: wrap;
  padding: 26px 0 0;
}
.arena-tab {
  appearance: none; border: 0; background: none; cursor: pointer;
  font-family: var(--font-serif); font-size: 13px; letter-spacing: .22em;
  color: var(--mute); padding: 8px 20px 10px;
  border-bottom: 1px solid rgba(255,255,255,.06);
  transition: color .5s var(--ease), border-color .5s var(--ease);
}
.arena-tab:hover { color: var(--paper); }
.arena-tab.active { color: var(--gold-bright); border-bottom-color: var(--gold-dim); }

/* ═══════════ 对手列表 ═══════════ */
.arena-targets { display: flex; flex-direction: column; }
.arena-target {
  display: flex; align-items: center; justify-content: space-between; gap: 18px;
  padding: 14px 4px; border-bottom: 1px solid rgba(255,255,255,.04);
}
.arena-target:last-child { border-bottom: none; }
.arena-target.off { opacity: .55; }
.arena-target-main { min-width: 0; flex: 1; }
.arena-target-head { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; margin-bottom: 5px; }
.arena-target-name {
  font-family: var(--font-serif); font-size: 15px; letter-spacing: .12em; color: var(--paper);
  /* 道号是玩家可控文本：长道号也不能撑破布局 */
  overflow-wrap: anywhere;
}
.arena-target-realm {
  font-size: 10.5px; letter-spacing: .14em; color: var(--mute-2);
  border: 1px solid rgba(255,255,255,.08); border-radius: 2px; padding: 1px 7px;
  white-space: nowrap;
}
.arena-target-facts { display: flex; gap: 18px; flex-wrap: wrap; }
.arena-winrate .arena-fact-value { color: var(--jade-bright); }
.arena-winrate.good .arena-fact-value { color: var(--jade); }
.arena-winrate.bad .arena-fact-value { color: var(--cinnabar); }
.arena-target-why {
  font-size: 11px; color: var(--cinnabar); letter-spacing: .06em; line-height: 1.8;
  margin-top: 4px;
}

/* ═══════════ 战斗页 ═══════════ */
.arena-top {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 20px; padding-bottom: 14px;
}
.arena-top-mode {
  font-family: var(--font-serif); font-size: 15px; letter-spacing: .2em;
  color: var(--gold-dim); margin-bottom: 6px;
}
.arena-top-opp {
  font-family: var(--font-serif); font-size: 22px; letter-spacing: .16em;
  color: var(--gold-bright); overflow-wrap: anywhere;
}
.arena-bt .bt-bars { padding-top: 6px; }

.arena-bstats-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
  padding: 12px 0 16px; border-bottom: 1px solid rgba(255,255,255,.04);
}
.arena-bstats { display: flex; gap: 16px; flex-wrap: wrap; }
.arena-bstats.enemy { justify-content: flex-end; }
.arena-bstat { display: flex; align-items: baseline; gap: 6px; }
.arena-bstat-name { font-size: 10.5px; color: var(--mute-2); letter-spacing: .1em; }
.arena-bstat-value { font-size: 12px; color: var(--paper); opacity: .8; font-family: var(--font-serif); }

.arena-bt .bt-skills { padding-top: 14px; }
.arena-bt .bt-actions { padding-top: 14px; }

/* ═══════════ 战果页 ═══════════ */
.arena-result-page {
  display: grid; grid-template-columns: auto 1fr; gap: 22px 26px;
  align-items: center; max-width: 52em; padding: 8px 0 4px;
}
.arena-result-seal {
  width: 74px; height: 74px; flex: 0 0 auto;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-serif); font-size: 34px;
  border: 1px solid rgba(201,168,106,.3); border-radius: 2px;
  color: var(--gold-bright); background: rgba(201,168,106,.05);
}
.arena-result-page.arena-lose .arena-result-seal {
  border-color: rgba(184,80,63,.4); color: var(--cinnabar); background: rgba(184,80,63,.05);
}
.arena-result-title {
  font-family: var(--font-serif); font-size: 26px; letter-spacing: .34em;
  color: var(--gold-bright); margin-bottom: 8px;
}
.arena-result-page.arena-lose .arena-result-title { color: var(--cinnabar); }
.arena-result-sub { font-size: 13px; color: var(--mute); letter-spacing: .08em; line-height: 1.9; }

.arena-result-card {
  grid-column: 1 / -1;
  border: 1px solid var(--gold-faint); border-radius: 2px;
  background: linear-gradient(180deg, rgba(201,168,106,.04), transparent);
  padding: 8px 24px 14px;
}
.arena-result-row {
  display: flex; align-items: baseline; justify-content: space-between; gap: 20px;
  padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,.04);
}
.arena-result-row:last-child { border-bottom: none; }
.arena-result-label {
  font-family: var(--font-serif); font-size: 11.5px; letter-spacing: .22em; color: var(--mute-2);
  white-space: nowrap;
}
.arena-result-value {
  font-family: var(--font-serif); font-size: 15px; letter-spacing: .06em;
  color: var(--gold-bright); text-align: right; overflow-wrap: anywhere;
}
.arena-result-lines {
  padding-top: 12px; border-top: 1px solid rgba(255,255,255,.04);
  max-height: 180px; overflow-y: auto;
  font-size: 12px; line-height: 2; letter-spacing: .04em;
}
.arena-result-line { color: var(--mute); }
/* 战报配色沿用 bt-log-line 的那一套（t-good / t-bad / t-warn / t-info / t-hint） */
.arena-result-line.t-good { color: var(--jade); }
.arena-result-line.t-bad { color: var(--cinnabar); }
.arena-result-line.t-warn { color: var(--gold); }
.arena-result-line.t-info { color: var(--paper); }
.arena-result-line.t-hint { color: var(--mute-2); }

.arena-result-acts { grid-column: 1 / -1; padding-top: 6px; }
.arena-result-acts .btn-jade { min-width: 180px; }

/* ═══════════ 窄屏 ═══════════ */
@media (max-width: 820px) {
  .arena-boards { grid-template-columns: 1fr; }
  .arena-board { padding: 18px 18px 16px; }
  .arena-tries { grid-template-columns: 1fr; }
  .arena-top-opp { font-size: 18px; }
  .arena-bstats-row { grid-template-columns: 1fr; gap: 8px; }
  .arena-bstats.enemy { justify-content: flex-start; }
  .arena-target { flex-wrap: wrap; }
  .arena-target .btn-jade { margin-left: auto; }
  .arena-board-head { flex-wrap: wrap; gap: 8px; }
  .arena-result-page { gap: 16px; }
  .arena-result-seal { width: 56px; height: 56px; font-size: 26px; }
  .arena-result-title { font-size: 20px; letter-spacing: .2em; }
  .arena-result-card { padding: 6px 16px 12px; }
  .arena-result-value { font-size: 13.5px; }
  .arena-tier { flex-wrap: wrap; }
  .arena-tier-value { justify-content: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  .arena-board, .arena-tab { transition: none; }
}