/**
 * GameArena 平台底座样式：布局/间距/组件结构，配色全部走 CSS 变量。
 * 主题包（assets/themes/*.css）只覆盖变量，不碰布局。
 */

/* ---------- 变量默认值（默认主题） ---------- */
:root {
  --ga-bg: #f4f5f7;
  --ga-panel: #ffffff;
  --ga-panel-2: #f8f9fb;
  --ga-text: #22262e;
  --ga-text-dim: #6b7280;
  --ga-border: #e3e6ea;
  --ga-primary: #3b6ef5;
  --ga-primary-ink: #ffffff;
  --ga-primary-hover: #2f5cd8;
  --ga-danger: #e5484d;
  --ga-ok: #2ea043;
  --ga-warn: #f5a623;
  --ga-shadow: 0 2px 10px rgba(20, 30, 50, .08);
  --ga-radius: 10px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  font: 15px/1.6 "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  background: var(--ga-bg);
  color: var(--ga-text);
}

a { color: var(--ga-primary); text-decoration: none; }

/* ---------- 顶栏 ---------- */
.ga-topbar {
  display: flex; align-items: center; gap: 16px;
  padding: 0 24px; height: 56px;
  background: var(--ga-panel); border-bottom: 1px solid var(--ga-border);
  position: sticky; top: 0; z-index: 10;
}
.ga-logo { font-size: 18px; font-weight: 700; letter-spacing: 1px; }
.ga-logo em { font-style: normal; color: var(--ga-primary); }
.ga-topbar .spacer { flex: 1; }
.ga-user { display: flex; align-items: center; gap: 10px; color: var(--ga-text-dim); font-size: 14px; }
.ga-user b { color: var(--ga-text); }

/* ---------- 布局 ---------- */
.ga-main { max-width: 1100px; margin: 24px auto; padding: 0 24px; }
.ga-grid { display: grid; grid-template-columns: 1fr 340px; gap: 20px; }
@media (max-width: 900px) { .ga-grid { grid-template-columns: 1fr; } }

.ga-panel {
  background: var(--ga-panel); border: 1px solid var(--ga-border);
  border-radius: var(--ga-radius); box-shadow: var(--ga-shadow);
  padding: 20px;
}
.ga-panel + .ga-panel { margin-top: 20px; }
.ga-panel h2 { font-size: 16px; margin-bottom: 14px; display: flex; align-items: center; gap: 8px; }
.ga-panel h2 .count { color: var(--ga-text-dim); font-weight: 400; font-size: 13px; }

/* ---------- 按钮/表单 ---------- */
.ga-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 8px 18px; border-radius: 8px; border: 1px solid transparent;
  background: var(--ga-primary); color: var(--ga-primary-ink);
  font-size: 14px; cursor: pointer; transition: background .15s;
}
.ga-btn:hover { background: var(--ga-primary-hover); }
.ga-btn.ghost { background: transparent; border-color: var(--ga-border); color: var(--ga-text); }
.ga-btn.ghost:hover { background: var(--ga-panel-2); }
.ga-btn.danger { background: var(--ga-danger); color: #fff; }
.ga-btn:disabled { opacity: .5; cursor: not-allowed; }
.ga-btn.sm { padding: 4px 12px; font-size: 13px; }

.ga-input, .ga-select {
  padding: 8px 12px; border-radius: 8px; border: 1px solid var(--ga-border);
  background: var(--ga-panel); color: var(--ga-text); font-size: 14px; outline: none;
}
.ga-input:focus, .ga-select:focus { border-color: var(--ga-primary); }
.ga-field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.ga-field label { font-size: 13px; color: var(--ga-text-dim); }

/* ---------- 游戏卡片 ---------- */
.ga-game-card {
  display: flex; gap: 16px; padding: 16px; border: 1px solid var(--ga-border);
  border-radius: var(--ga-radius); background: var(--ga-panel-2); cursor: pointer;
  transition: border-color .15s, transform .15s;
}
.ga-game-card:hover { border-color: var(--ga-primary); transform: translateY(-2px); }
.ga-game-icon {
  width: 56px; height: 56px; border-radius: 12px; flex: none;
  background: var(--ga-primary); color: var(--ga-primary-ink);
  display: flex; align-items: center; justify-content: center; font-size: 26px;
}
.ga-game-card h3 { font-size: 15px; }
.ga-game-card p { font-size: 13px; color: var(--ga-text-dim); margin-top: 4px; }
.ga-game-card .tag {
  display: inline-block; margin-top: 8px; padding: 2px 8px; border-radius: 20px;
  font-size: 12px; background: var(--ga-panel); border: 1px solid var(--ga-border); color: var(--ga-text-dim);
}

/* ---------- 房间行 ---------- */
.ga-room-row {
  display: flex; align-items: center; gap: 12px; padding: 12px 14px;
  border: 1px solid var(--ga-border); border-radius: 8px; margin-bottom: 10px;
  background: var(--ga-panel-2);
}
.ga-room-row .name { font-weight: 600; }
.ga-room-row .meta { color: var(--ga-text-dim); font-size: 13px; }
.ga-room-row .seats { margin-left: auto; color: var(--ga-text-dim); font-size: 13px; white-space: nowrap; }
.ga-empty { color: var(--ga-text-dim); text-align: center; padding: 30px 0; font-size: 14px; }

/* ---------- 聊天 ---------- */
.ga-chat {
  display: flex; flex-direction: column; height: 340px;
  border: 1px solid var(--ga-border); border-radius: 8px; overflow: hidden;
}
.ga-chat-log { flex: 1; overflow-y: auto; padding: 12px; background: var(--ga-panel-2); }
.ga-chat-log .line { margin-bottom: 8px; font-size: 14px; word-break: break-all; }
.ga-chat-log .line .who { font-weight: 600; color: var(--ga-primary); }
.ga-chat-log .line.sys { color: var(--ga-text-dim); font-size: 13px; }
.ga-chat-input { display: flex; gap: 8px; padding: 10px; border-top: 1px solid var(--ga-border); }
.ga-chat-input input { flex: 1; }

/* ---------- 成员列表 ---------- */
.ga-member {
  display: flex; align-items: center; gap: 10px; padding: 7px 10px;
  border-radius: 8px; font-size: 14px;
}
.ga-member .seat {
  width: 24px; height: 24px; border-radius: 6px; flex: none;
  background: var(--ga-panel-2); border: 1px solid var(--ga-border);
  display: flex; align-items: center; justify-content: center; font-size: 12px; color: var(--ga-text-dim);
}
.ga-member .host-tag { font-size: 12px; color: var(--ga-warn); }
.ga-member .offline { color: var(--ga-text-dim); font-size: 12px; }
.ga-member.spectator { color: var(--ga-text-dim); }

/* ---------- 杂项 ---------- */
.ga-badge {
  display: inline-block; padding: 2px 8px; border-radius: 20px; font-size: 12px;
  background: var(--ga-panel-2); border: 1px solid var(--ga-border); color: var(--ga-text-dim);
}
.ga-badge.ok { color: var(--ga-ok); border-color: var(--ga-ok); }
.ga-badge.playing { color: var(--ga-warn); border-color: var(--ga-warn); }
.ga-toast {
  position: fixed; top: 70px; left: 50%; transform: translateX(-50%);
  background: var(--ga-text); color: var(--ga-bg); padding: 10px 22px;
  border-radius: 8px; font-size: 14px; z-index: 100; opacity: 0;
  transition: opacity .25s; pointer-events: none;
}
.ga-toast.show { opacity: .95; }

/* 登录遮罩 */
.ga-login-mask {
  position: fixed; inset: 0; z-index: 50;
  background: var(--ga-bg);
  display: flex; align-items: center; justify-content: center;
}
.ga-login-box {
  width: 340px; padding: 32px; background: var(--ga-panel);
  border: 1px solid var(--ga-border); border-radius: 14px; box-shadow: var(--ga-shadow);
}
.ga-login-box h1 { font-size: 20px; text-align: center; margin-bottom: 6px; }
.ga-login-box .sub { text-align: center; color: var(--ga-text-dim); font-size: 13px; margin-bottom: 24px; }
.ga-login-box .err { color: var(--ga-danger); font-size: 13px; min-height: 20px; margin-bottom: 8px; text-align: center; }

.hidden { display: none !important; }