/* ============================================================
   admin.css —— 卡密管理系统后台样式（现代轻量风格）
   ============================================================ */
:root {
  --bg: #f1f5f9;
  --panel: #ffffff;
  --border: #e2e8f0;
  --text: #0f172a;
  --muted: #64748b;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --green: #16a34a;
  --orange: #ea580c;
  --red: #dc2626;
  --purple: #7c3aed;
  --sidebar-w: 220px;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(15, 23, 42, .06), 0 4px 16px rgba(15, 23, 42, .05);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.6;
}
a { color: var(--primary); text-decoration: none; }
code {
  font-family: "SFMono-Regular", Consolas, "Courier New", monospace;
  background: #f1f5f9;
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 1px 6px;
  font-size: 12.5px;
  word-break: break-all;
}
.muted { color: var(--muted); }
.empty { text-align: center; color: var(--muted); padding: 40px 0 !important; }

/* ============ 布局 ============ */
.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: var(--sidebar-w);
  background: #0f172a;
  color: #cbd5e1;
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  flex-shrink: 0;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  padding: 20px 18px;
  font-size: 16px; font-weight: 700; color: #fff;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.brand svg { color: #60a5fa; }
.sidebar nav { flex: 1; padding: 14px 10px; display: flex; flex-direction: column; gap: 4px; }
.sidebar nav a {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px; border-radius: 8px;
  color: #cbd5e1; font-size: 14px; transition: all .15s;
}
.sidebar nav a:hover { background: rgba(255,255,255,.07); color: #fff; }
.sidebar nav a.active { background: var(--primary); color: #fff; }
.nav-ico { width: 20px; text-align: center; opacity: .9; }
.side-foot { padding: 14px; border-top: 1px solid rgba(255,255,255,.08); }
.side-foot a { color: #fca5a5; display: block; padding: 6px 14px; border-radius: 8px; }
.side-foot a:hover { background: rgba(255,255,255,.07); }

.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  padding: 14px 24px;
  display: flex; align-items: center; justify-content: space-between;
  position: sticky; top: 0; z-index: 10;
}
.topbar h2 { font-size: 17px; font-weight: 700; }
.topbar-user { color: var(--muted); font-size: 13px; }
.content { padding: 22px 24px; }

/* ============ 统计卡片 ============ */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px; margin-bottom: 20px;
}
.stat-card {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px 20px; box-shadow: var(--shadow);
}
.stat-card .stat-num { font-size: 30px; font-weight: 800; color: var(--primary); line-height: 1.2; }
.stat-card .stat-label { color: var(--muted); font-size: 13px; margin-top: 4px; }
.sc-green .stat-num { color: var(--green); }
.sc-blue .stat-num { color: var(--primary); }
.sc-red .stat-num { color: var(--red); }
.sc-orange .stat-num { color: var(--orange); }
.sc-purple .stat-num { color: var(--purple); }

/* ============ 面板 ============ */
.panel {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 18px 20px; margin-bottom: 20px;
}
.panel-head { font-size: 15px; font-weight: 700; margin-bottom: 14px; }

/* ============ 按钮 ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 8px 16px; border-radius: 8px; border: 1px solid var(--border);
  background: #fff; color: var(--text); font-size: 13.5px; cursor: pointer;
  transition: all .15s; line-height: 1.4;
}
.btn:hover { border-color: var(--primary); color: var(--primary); }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; }
.btn-block { width: 100%; }
.btn-lg { padding: 11px 20px; font-size: 15px; }
.btn-sm { padding: 5px 12px; font-size: 12.5px; }
.btn-xs { padding: 3px 10px; font-size: 12px; }
.btn-green { background: var(--green); border-color: var(--green); color: #fff; }
.btn-green:hover { background: #15803d; color: #fff; }
.btn-blue { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-blue:hover { background: var(--primary-dark); color: #fff; }
.btn-orange { background: var(--orange); border-color: var(--orange); color: #fff; }
.btn-orange:hover { background: #c2410c; color: #fff; }
.btn-red { background: var(--red); border-color: var(--red); color: #fff; }
.btn-red:hover { background: #b91c1c; color: #fff; }

/* ============ 表单 ============ */
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 6px; font-weight: 500; }
.field input, .field select {
  width: 100%; padding: 9px 12px; border: 1px solid var(--border);
  border-radius: 8px; font-size: 14px; background: #fff; color: var(--text);
}
.field input:focus, .field select:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,.12); }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 4px 16px; }
.field-wide { grid-column: 1 / -1; }

/* ============ 表格 ============ */
.filter-bar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 12px; }
.filter-bar input, .filter-bar select { padding: 7px 11px; border: 1px solid var(--border); border-radius: 8px; font-size: 13px; }
.filter-bar input[type="text"] { min-width: 240px; }
.filter-count { margin-left: auto; color: var(--muted); font-size: 12.5px; }
.batch-bar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 12px; }
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 8px; }
table { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 980px; }
thead th {
  background: #f8fafc; color: var(--muted); text-align: left;
  padding: 10px 12px; font-weight: 600; font-size: 12.5px;
  border-bottom: 1px solid var(--border); white-space: nowrap;
}
tbody td { padding: 9px 12px; border-bottom: 1px solid #f1f5f9; vertical-align: top; }
tbody tr:hover { background: #f8fafc; }
tbody tr:last-child td { border-bottom: none; }
.card-code { font-size: 13.5px; font-weight: 600; letter-spacing: .3px; }
.pager { display: flex; gap: 6px; margin-top: 14px; flex-wrap: wrap; }
.pager a {
  min-width: 32px; height: 32px; display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--border); border-radius: 7px; font-size: 13px; color: var(--text);
}
.pager a.cur { background: var(--primary); border-color: var(--primary); color: #fff; }

/* ============ Badge ============ */
.badge {
  display: inline-block; padding: 2px 9px; border-radius: 20px;
  font-size: 12px; font-weight: 600; white-space: nowrap;
}
.badge-green { background: #dcfce7; color: #15803d; }
.badge-blue { background: #dbeafe; color: #1d4ed8; }
.badge-red { background: #fee2e2; color: #b91c1c; }
.badge-gray { background: #f1f5f9; color: #64748b; }
.badge-orange { background: #ffedd5; color: #c2410c; }
.badge-purple { background: #ede9fe; color: #6d28d9; }

/* ============ 生成结果 ============ */
.gen-result { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.gen-chip {
  border: 1px dashed var(--primary); background: #eff6ff; color: var(--primary-dark);
  border-radius: 8px; padding: 8px 14px; font-family: monospace; font-size: 14px;
  cursor: pointer; transition: all .15s;
}
.gen-chip:hover { background: var(--primary); color: #fff; border-style: solid; }

/* ============ API 页 ============ */
.api-info { display: flex; flex-direction: column; gap: 10px; margin-bottom: 14px; }
.api-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; font-size: 13px; }
.api-row label { min-width: 80px; color: var(--muted); }
.api-table { width: 100%; border-collapse: collapse; font-size: 13px; margin-bottom: 14px; }
.api-table th, .api-table td { border: 1px solid var(--border); padding: 8px 12px; text-align: left; }
.api-table th { background: #f8fafc; }
.api-demo { margin-top: 10px; }
.api-demo summary { cursor: pointer; color: var(--primary); font-size: 13.5px; font-weight: 500; }
.api-demo pre {
  background: #0f172a; color: #e2e8f0; border-radius: 8px;
  padding: 14px 16px; font-size: 12.5px; overflow-x: auto; margin-top: 8px; line-height: 1.55;
}

/* ============ 快速入口 ============ */
.quick-actions { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; }
.qa-card {
  display: flex; flex-direction: column; gap: 2px;
  padding: 18px; border: 1px solid var(--border); border-radius: var(--radius);
  color: var(--text); transition: all .15s;
}
.qa-card b { font-size: 22px; color: var(--primary); }
.qa-card span { font-weight: 700; margin-top: 6px; }
.qa-card small { color: var(--muted); }
.qa-card:hover { border-color: var(--primary); box-shadow: var(--shadow); transform: translateY(-2px); }

/* ============ 登录页 ============ */
body.login-page {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 55%, #2563eb 100%);
  display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 20px;
}
.login-wrap { width: 100%; max-width: 400px; }
.login-card {
  background: #fff; border-radius: 16px; box-shadow: 0 20px 60px rgba(0,0,0,.25);
  padding: 34px 32px;
}
.login-logo { text-align: center; margin-bottom: 24px; color: var(--primary); }
.login-logo h1 { font-size: 20px; color: var(--text); margin-top: 8px; }
.login-logo p { color: var(--muted); font-size: 13px; margin-top: 2px; }
.login-error {
  background: #fee2e2; color: #b91c1c; border-radius: 8px;
  padding: 9px 12px; font-size: 13px; margin-bottom: 12px;
}
.login-foot { text-align: center; color: rgba(255,255,255,.6); font-size: 12px; margin-top: 16px; }

/* ============ 响应式 ============ */
@media (max-width: 900px) {
  .layout { flex-direction: column; }
  .sidebar { width: 100%; height: auto; position: static; }
  .sidebar nav { flex-direction: row; flex-wrap: wrap; }
  .side-foot { display: none; }
  .content { padding: 14px; }
  .topbar { padding: 12px 16px; }
}