/* 白哥油管派 · 管理后台 —— 深色主题 */
:root {
  --bg: #0d0f14;
  --bg-2: #12151d;
  --panel: #171b25;
  --panel-2: #1d2230;
  --border: #272d3d;
  --border-2: #323a4f;
  --text: #e6e9f2;
  --text-dim: #9aa3b8;
  --text-faint: #6b7488;
  --accent: #3d7bfd;
  --accent-2: #2f6ae0;
  --green: #3ecf8e;
  --red: #ff6b6b;
  --orange: #ffb454;
  --radius: 12px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}
.hidden { display: none !important; }

/* ---------- 按钮 / 输入 ---------- */
.btn {
  border: 1px solid var(--border-2);
  background: var(--panel-2);
  color: var(--text);
  border-radius: 8px;
  padding: 8px 16px;
  cursor: pointer;
  font-size: 14px;
  transition: filter .15s, background .15s;
}
.btn:hover { filter: brightness(1.15); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary {
  background: var(--accent);
  border: none;
  color: #fff;
  font-weight: 600;
}
.btn-primary:hover { background: #5589fd; }
.btn-ghost { background: transparent; }
.btn-small { padding: 4px 12px; font-size: 13px; }
.btn-danger { border-color: #a33; color: var(--red); background: transparent; }
.btn-block { width: 100%; }
.input {
  width: 100%;
  background: var(--bg-2);
  border: 1px solid var(--border-2);
  color: var(--text);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 14px;
  outline: none;
}
.input:focus { border-color: var(--accent); }
.input-sm { width: auto; padding: 5px 10px; font-size: 13px; }
select.input option { background: var(--bg-2); }
.check { display: flex; align-items: center; gap: 6px; color: var(--text-dim); cursor: pointer; }

/* ---------- 登录页 ---------- */
.login-wrap {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  background:
    radial-gradient(600px 300px at 20% 10%, rgba(61,123,253,.12), transparent),
    radial-gradient(600px 300px at 80% 90%, rgba(47,106,224,.10), transparent),
    var(--bg);
}
.login-card {
  width: 360px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px 32px 28px;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0,0,0,.5);
}
.login-logo { font-size: 44px; margin-bottom: 10px; }
.login-title { font-size: 19px; font-weight: 700; }
.login-sub { color: var(--text-dim); font-size: 13px; margin: 8px 0 24px; }
.login-card form { display: flex; flex-direction: column; gap: 12px; }
.login-error {
  margin-top: 14px;
  padding: 9px 12px;
  border-radius: 8px;
  background: rgba(255,107,107,.12);
  border: 1px solid rgba(255,107,107,.4);
  color: var(--red);
  font-size: 13px;
  line-height: 1.5;
}
.login-foot { color: var(--text-faint); font-size: 12px; }

/* ---------- 顶栏 ---------- */
.topbar {
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar-left { display: flex; align-items: center; gap: 10px; }
.topbar-logo { font-size: 20px; }
.topbar-title { font-size: 16px; font-weight: 700; }
.topbar-badge {
  font-size: 11px;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 20px;
  padding: 2px 10px;
  opacity: .9;
}

/* ---------- 布局 ---------- */
.layout { display: flex; min-height: calc(100vh - 56px); }
.sidebar {
  width: 210px;
  flex-shrink: 0;
  background: var(--bg-2);
  border-right: 1px solid var(--border);
  padding: 16px 10px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.nav-item {
  padding: 10px 14px;
  border-radius: 8px;
  cursor: pointer;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 6px;
  user-select: none;
}
.nav-item:hover { background: var(--panel-2); color: var(--text); }
.nav-item.active {
  background: rgba(61, 123, 253, .18);
  color: #fff;
  border: 1px solid rgba(61, 123, 253, .5);
}
.nav-item.disabled { color: var(--text-faint); cursor: not-allowed; }
.nav-item.disabled:hover { background: transparent; color: var(--text-faint); }
.nav-item.link { color: var(--text-dim); }
.tag-future {
  font-size: 10px;
  color: var(--text-faint);
  border: 1px solid var(--border-2);
  padding: 1px 6px;
  border-radius: 10px;
  margin-left: auto;
}
.sidebar-sep { height: 1px; background: var(--border); margin: 12px 6px; }

.main { flex: 1; padding: 20px 24px; min-width: 0; }

/* ---------- 统计卡片 ---------- */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 18px;
}
.stat-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
}
.stat-num { font-size: 30px; font-weight: 700; font-variant-numeric: tabular-nums; }
.stat-label { color: var(--text-dim); font-size: 13px; margin-top: 4px; }
.stat-card.stat-future { opacity: .55; }
.stat-num-future { font-size: 22px; color: var(--text-dim); }

/* ---------- 面板 ---------- */
.cols {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}
.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
}
.panel-title { font-size: 15px; font-weight: 700; margin-bottom: 14px; }
.field-label { display: block; color: var(--text-dim); font-size: 12px; margin: 14px 0 6px; }

/* 发卡密 */
.plan-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.plan-btn {
  padding: 9px 0;
  border-radius: 8px;
  border: 1px solid var(--border-2);
  background: var(--bg-2);
  color: var(--text-dim);
  cursor: pointer;
}
.plan-btn.active {
  border-color: var(--accent);
  color: #fff;
  background: rgba(61, 123, 253, .18);
}
.gen-panel .btn-block { margin-top: 18px; }
.gen-result { margin-top: 16px; border-top: 1px dashed var(--border-2); padding-top: 14px; }
.gen-result-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.gen-result-head > span { color: var(--green); font-weight: 600; }
/* 复制全部 / 导出TXT：横排铺满放在卡密列表下方 */
.gen-result-actions { display: flex; gap: 10px; margin-top: 12px; }
.gen-result-actions .btn { flex: 1; }
.gen-codes {
  max-height: 320px;
  overflow: auto;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
  font-family: Consolas, monospace;
  font-size: 13px;
  line-height: 1.8;
  word-break: break-all;
  user-select: all;
}

/* ---------- 标签页 ---------- */
.tab-bar {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.tab-btn {
  border: none;
  background: transparent;
  color: var(--text-dim);
  padding: 8px 14px;
  cursor: pointer;
  font-size: 14px;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }

.toolbar { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-bottom: 12px; }

/* ---------- 表格 ---------- */
.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; font-size: 13px; }
.table th {
  text-align: left;
  color: var(--text-faint);
  font-weight: 600;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.table td {
  padding: 9px 10px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.table tr:last-child td { border-bottom: none; }
.table tr:hover td { background: rgba(255,255,255,.02); }
.mono { font-family: Consolas, monospace; }
.th-check { width: 28px; }

.badge {
  display: inline-block;
  border-radius: 12px;
  padding: 2px 10px;
  font-size: 12px;
  border: 1px solid;
}
.badge-unused { color: var(--green); border-color: rgba(62,207,142,.5); background: rgba(62,207,142,.08); }
.badge-used { color: var(--text-faint); border-color: var(--border-2); background: transparent; }
.badge-archived { color: var(--orange); border-color: rgba(255,180,84,.5); background: rgba(255,180,84,.08); }
.badge-ok { color: var(--green); border-color: rgba(62,207,142,.5); background: rgba(62,207,142,.08); }
.badge-fail { color: var(--red); border-color: rgba(255,107,107,.5); background: rgba(255,107,107,.08); }

.empty { color: var(--text-faint); text-align: center; padding: 26px 0; }
.text-dim { color: var(--text-dim); font-size: 12px; }

.pager {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  padding: 12px 4px 2px;
  color: var(--text-dim);
  font-size: 13px;
}

.bulk-bar {
  margin-top: 12px;
  padding: 10px 12px;
  border: 1px dashed var(--accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  background: rgba(108,123,255,.06);
  color: var(--text-dim);
}
.bulk-bar b { color: var(--text); }

.row-actions { display: flex; gap: 6px; flex-wrap: wrap; }

/* ---------- 电脑解绑 ---------- */
.device-box { margin-top: 6px; }
.device-user-head { color: var(--text-dim); margin-bottom: 10px; }
.device-user-head b { color: var(--text); }
.idle-hours { color: var(--orange); font-variant-numeric: tabular-nums; }

/* ---------- 弹窗 ---------- */
.modal-mask {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}
.modal-card {
  width: 400px;
  max-width: calc(100vw - 40px);
  background: var(--panel);
  border: 1px solid var(--border-2);
  border-radius: 14px;
  padding: 22px;
  box-shadow: 0 20px 60px rgba(0,0,0,.55);
}
.modal-title { font-weight: 700; font-size: 15px; margin-bottom: 12px; }
.modal-body { color: var(--text-dim); line-height: 1.7; word-break: break-all; }
.modal-input { margin-top: 12px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 18px; }

/* ---------- 提示条 ---------- */
.toast {
  position: fixed;
  top: 70px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--panel-2);
  border: 1px solid var(--border-2);
  color: var(--text);
  padding: 10px 20px;
  border-radius: 10px;
  z-index: 200;
  box-shadow: 0 10px 30px rgba(0,0,0,.5);
  max-width: 80vw;
}
.toast.ok { border-color: rgba(62,207,142,.6); color: var(--green); }
.toast.err { border-color: rgba(255,107,107,.6); color: var(--red); }

/* ---------- 健康驾驶舱页 ---------- */
.monitor-page {
  height: calc(100vh - 96px); /* 顶栏 56 + 主区上下内边距 40 */
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.monitor-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-dim);
  font-size: 12px;
}
.monitor-open { color: var(--accent); text-decoration: none; }
.monitor-open:hover { text-decoration: underline; }
.monitor-frame {
  flex: 1;
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #0d0f14;
}

@media (max-width: 1100px) {
  .cols { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
}