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

:root {
  --bg: #0d0d0f;
  --bg2: #16161a;
  --card: #1c1c22;
  --border: #2a2a33;
  --text: #e8e8ea;
  --muted: #8a8a94;
  --accent: #f5a623;      /* PUBG 橙 */
  --accent2: #d98812;
  --green: #58c25e;
  --red: #e5484d;
}

html, body { height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

/* ===== 首页 ===== */
.landing {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; padding: 24px 20px; position: relative; overflow: hidden;
  background: var(--bg);
}
.landing-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 20% 15%, rgba(245,166,35,.14), transparent 55%),
    radial-gradient(ellipse at 85% 85%, rgba(245,166,35,.10), transparent 50%),
    linear-gradient(180deg, #101014 0%, #0b0b0e 100%);
}
.landing-grid {
  position: absolute; inset: 0; opacity: .35;
  background-image:
    linear-gradient(rgba(245,166,35,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(245,166,35,.05) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%);
          mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%);
}
.landing-glow {
  position: absolute; border-radius: 50%; filter: blur(70px); opacity: .35; pointer-events: none;
}
.glow-1 { width: 300px; height: 300px; background: rgba(245,166,35,.35); top: -80px; right: -60px; }
.glow-2 { width: 260px; height: 260px; background: rgba(245,166,35,.25); bottom: -70px; left: -70px; }
.landing-box {
  position: relative; z-index: 1; width: 100%; max-width: 500px;
  background: linear-gradient(180deg, rgba(28,28,34,.92), rgba(20,20,25,.96));
  border: 1px solid var(--border); border-radius: 20px;
  padding: 44px 36px 36px; text-align: center;
  box-shadow: 0 24px 60px rgba(0,0,0,.55), inset 0 1px 0 rgba(255,255,255,.04);
  animation: landingIn .55s ease-out both;
}
@keyframes landingIn {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}
.logo-badge {
  width: 64px; height: 64px; margin: 0 auto 18px; border-radius: 18px;
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
  background: linear-gradient(160deg, rgba(245,166,35,.18), rgba(245,166,35,.05));
  border: 1px solid rgba(245,166,35,.35);
  box-shadow: 0 0 26px rgba(245,166,35,.18), inset 0 0 18px rgba(245,166,35,.08);
}
.logo-badge svg { width: 32px; height: 32px; }
.logo {
  font-size: 28px; font-weight: 800; letter-spacing: 2px; color: var(--accent);
  text-shadow: 0 0 24px rgba(245,166,35,.35);
}
.tagline { color: var(--muted); margin: 10px 0 30px; font-size: 14px; letter-spacing: .5px; }

.logged-out, .logged-in { min-height: 110px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px; }
.steam-btn {
  display: inline-flex; align-items: center; gap: 10px;
  background: linear-gradient(180deg, #2e2e38, #232329);
  border: 1px solid rgba(245,166,35,.45); border-radius: 10px;
  padding: 12px 26px; font-size: 15px; font-weight: 700; color: var(--text);
  text-decoration: none; cursor: pointer;
  box-shadow: 0 6px 18px rgba(0,0,0,.4), 0 0 0 rgba(245,166,35,0);
  transition: transform .15s, box-shadow .2s, border-color .2s;
}
.steam-btn:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: 0 10px 26px rgba(0,0,0,.5), 0 0 22px rgba(245,166,35,.22);
}
.steam-btn:active { transform: translateY(0); }
.steam-ico { width: 26px; height: 26px; color: var(--accent); }
.hint { color: var(--muted); font-size: 13px; }
.avatar { width: 56px; height: 56px; border-radius: 50%; border: 2px solid var(--accent); }

.tips { margin-top: 34px; text-align: left; background: rgba(13,13,16,.6); border: 1px solid var(--border); border-radius: 14px; padding: 20px 20px 12px; }
.tips h3 {
  font-size: 13px; color: var(--accent); margin-bottom: 14px; letter-spacing: 2px;
  display: flex; align-items: center; gap: 8px;
}
.tips h3::before, .tips h3::after {
  content: ''; height: 1px; flex: 1; background: linear-gradient(90deg, transparent, rgba(245,166,35,.35));
}
.tips h3::after { background: linear-gradient(90deg, rgba(245,166,35,.35), transparent); }
.tips-grid { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.tip-item {
  display: flex; align-items: flex-start; gap: 10px;
  background: var(--card); border: 1px solid var(--border); border-radius: 10px;
  padding: 12px; color: var(--muted); font-size: 13px; line-height: 1.5;
  transition: border-color .2s, transform .15s;
}
.tip-item:hover { border-color: rgba(245,166,35,.4); transform: translateY(-1px); }
.tip-ico {
  flex: 0 0 auto; width: 30px; height: 30px; border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: var(--accent); background: rgba(245,166,35,.1);
}
.tip-ico svg { width: 16px; height: 16px; }

/* ===== 通用 ===== */
.app { min-height: 100vh; }
.topbar { background: var(--bg2); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 10; }
.topbar-inner { max-width: 1100px; margin: 0 auto; padding: 12px 20px; display: flex; justify-content: space-between; align-items: center; }
.brand { font-weight: 800; color: var(--accent); font-size: 17px; }
.user-info { display: flex; align-items: center; gap: 10px; font-size: 14px; }
.avatar-sm { width: 30px; height: 30px; border-radius: 50%; }

.container { max-width: 1100px; margin: 0 auto; padding: 24px 20px 60px; }
h1 { font-size: 22px; margin-bottom: 4px; }
.muted { color: var(--muted); font-size: 13px; }
.mono { font-family: Consolas, Monaco, monospace; }

/* 按钮 */
.btn {
  display: inline-block; border: none; cursor: pointer; border-radius: 8px;
  padding: 10px 18px; font-size: 14px; font-weight: 600; text-decoration: none;
  transition: opacity .15s;
}
.btn:active { opacity: .8; }
.btn-primary { background: var(--accent); color: #1a1a1a; }
.btn-primary:hover { background: var(--accent2); color: #fff; }
.btn-ghost { background: transparent; color: var(--muted); border: 1px solid var(--border); }
.btn-ghost:hover { color: var(--text); border-color: var(--muted); }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }

/* 统计卡 */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 14px; margin-bottom: 24px; }
.stat { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 16px; text-align: center; }
.stat b { display: block; font-size: 26px; color: var(--accent); }
.stat span { color: var(--muted); font-size: 13px; }

/* 标签页 */
.tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.tab {
  background: var(--card); border: 1px solid var(--border); color: var(--muted);
  padding: 9px 16px; border-radius: 8px; cursor: pointer; font-size: 14px;
}
.tab.active { background: var(--accent); color: #1a1a1a; border-color: var(--accent); font-weight: 600; }
.hidden { display: none !important; }

/* 表格 */
.table { width: 100%; border-collapse: collapse; background: var(--card); border-radius: 12px; overflow: hidden; font-size: 13px; }
.table th, .table td { padding: 11px 14px; text-align: left; border-bottom: 1px solid var(--border); }
.table th { background: var(--bg2); color: var(--muted); font-weight: 600; font-size: 12px; }
.table tr:last-child td { border-bottom: none; }
.table tr:hover td { background: rgba(255,255,255,.02); }

/* 徽标 */
.badge { display: inline-block; padding: 2px 10px; border-radius: 20px; font-size: 12px; background: var(--border); color: var(--muted); }
.badge.available { background: rgba(88,194,94,.15); color: var(--green); }
.badge.granted { background: rgba(245,166,35,.15); color: var(--accent); }
.badge.claimed { background: rgba(229,72,77,.15); color: var(--red); }
.badge.admin { background: rgba(245,166,35,.2); color: var(--accent); }

/* 工具条 */
.toolbar { display: flex; align-items: center; gap: 12px; margin: 14px 0; flex-wrap: wrap; }
.toolbar select, .toolbar input, textarea {
  background: var(--bg2); color: var(--text); border: 1px solid var(--border);
  border-radius: 8px; padding: 9px 12px; font-size: 14px;
}
textarea { width: 100%; font-family: Consolas, Monaco, monospace; }
.pager { display: flex; gap: 6px; margin-top: 14px; flex-wrap: wrap; }
.pager-btn { background: var(--card); border: 1px solid var(--border); color: var(--muted); padding: 5px 11px; border-radius: 6px; cursor: pointer; }
.pager-btn.active { background: var(--accent); color: #1a1a1a; border-color: var(--accent); }

/* 表单 */
.form-row { margin-bottom: 14px; }
.form-row label { display: block; margin-bottom: 6px; color: var(--muted); font-size: 13px; }
.check-list { display: flex; flex-wrap: wrap; gap: 8px; max-height: 260px; overflow-y: auto; }
.check-item { display: flex; align-items: center; gap: 8px; background: var(--bg2); border: 1px solid var(--border); padding: 7px 12px; border-radius: 8px; cursor: pointer; font-size: 13px; }

/* 成员福利卡片 */
.code-list { display: flex; flex-direction: column; gap: 12px; margin-top: 20px; }
.code-card {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 16px 18px;
}
.code-card.claimed { border-color: rgba(88,194,94,.4); }
.code-mask { font-size: 18px; font-weight: 700; letter-spacing: 1px; font-family: Consolas, Monaco, monospace; }
.code-meta { display: flex; align-items: center; gap: 10px; font-size: 13px; }
.empty { background: var(--card); border: 1px dashed var(--border); border-radius: 12px; padding: 40px; text-align: center; color: var(--muted); margin-top: 20px; }

/* 弹窗 */
.modal { position: fixed; inset: 0; background: rgba(0,0,0,.65); display: flex; align-items: center; justify-content: center; z-index: 100; padding: 20px; }
.modal-box { background: var(--bg2); border: 1px solid var(--border); border-radius: 14px; padding: 26px; width: 100%; max-width: 440px; }
.modal-box h3 { margin-bottom: 8px; }
.modal-actions { display: flex; gap: 10px; margin-top: 18px; justify-content: flex-end; }
.code-reveal {
  background: var(--card); border: 1px dashed var(--accent); border-radius: 10px;
  padding: 18px; font-size: 20px; font-weight: 700; text-align: center;
  font-family: Consolas, Monaco, monospace; color: var(--accent); word-break: break-all; margin: 14px 0;
}

.loading, .error { text-align: center; color: var(--muted); padding: 30px 0; }
.error { color: var(--red); }

@media (max-width: 640px) {
  .landing-box { padding: 28px 18px; }
  .topbar-inner { padding: 10px 14px; }
  .container { padding: 16px 12px 50px; }
  .table { font-size: 12px; }
  .table th, .table td { padding: 8px 8px; }
  .code-mask { font-size: 15px; }
}