/* ── 全局变量 & 重置 ── */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --cyan: #00d4ff;
  --cyan-dim: rgba(0,212,255,0.15);
  --cyan-glow: rgba(0,212,255,0.4);
  --bg: #2a3a55;
  --bg2: #304260;
  --bg3: #364a6e;
  --bg-deep: #1e2a40;
  --border: rgba(0,212,255,0.18);
  --border-bright: rgba(0,212,255,0.4);
  --text: #eaf2ff;
  --text-dim: rgba(255,255,255,0.45);
  --text-mute: rgba(255,255,255,0.25);
  --green: #4ade80;
  --red: #ff5c5c;
  --yellow: #fbbf24;
  --orange: #fb923c;
}

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  height: 100vh;
  overflow: hidden;
  user-select: none;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
svg { display: block; }

/* ── 滚动条 ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(0,212,255,0.25); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(0,212,255,0.45); }

/* ── 通用按钮 ── */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 14px; border-radius: 6px; border: 1px solid var(--border);
  background: var(--bg3); color: var(--text); font-size: 13px;
  transition: all 0.15s;
}
.btn:hover { border-color: var(--border-bright); color: var(--cyan); }
.btn svg { width: 14px; height: 14px; fill: currentColor; }

.btn-primary {
  background: var(--cyan); color: #0a0f1a; border-color: var(--cyan);
  font-weight: 600; letter-spacing: 0.5px;
}
.btn-primary:hover { background: #33ddff; color: #0a0f1a; }

.btn-danger { color: var(--red); border-color: rgba(255,92,92,0.3); }
.btn-danger:hover { background: rgba(255,92,92,0.1); border-color: var(--red); color: var(--red); }

.btn-ghost { background: none; border: 1px solid transparent; color: var(--text-dim); }
.btn-ghost:hover { color: var(--cyan); background: rgba(0,212,255,0.05); }

.btn-sm { padding: 4px 10px; font-size: 12px; }

/* ── 输入框 ── */
.input, .select {
  background: var(--bg3); border: 1px solid var(--border);
  color: var(--text); font-size: 13px;
  padding: 7px 12px; border-radius: 6px; height: 34px;
  font-family: inherit; outline: none;
  transition: border-color 0.15s;
}
.input:focus, .select:focus { border-color: var(--cyan); }
input[type="date"].input { cursor: pointer; position: relative; }
input[type="date"].input::-webkit-calendar-picker-indicator { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; cursor: pointer; }
.input::placeholder { color: var(--text-mute); }

/* ── 卡片 ── */
.card {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 8px; padding: 18px;
}
.card-title {
  font-size: 13px; color: var(--text-dim); letter-spacing: 1px;
  text-transform: uppercase; margin-bottom: 12px;
  padding-bottom: 10px; border-bottom: 1px solid var(--border);
}

/* ── 徽章 ── */
.badge {
  display: inline-flex; align-items: center;
  font-size: 11px; padding: 2px 8px; border-radius: 3px; letter-spacing: 0.5px;
}
.badge-cyan { background: var(--cyan-dim); color: var(--cyan); border: 1px solid rgba(0,212,255,0.3); }
.badge-green { background: rgba(74,222,128,0.12); color: var(--green); border: 1px solid rgba(74,222,128,0.3); }
.badge-red { background: rgba(255,92,92,0.12); color: var(--red); border: 1px solid rgba(255,92,92,0.3); }
.badge-yellow { background: rgba(251,191,36,0.12); color: var(--yellow); border: 1px solid rgba(251,191,36,0.3); }
.badge-dim { background: rgba(255,255,255,0.05); color: var(--text-dim); border: 1px solid rgba(255,255,255,0.1); }

/* ── 顶栏 ── */
.topbar {
  height: 56px; background: var(--bg2); border-bottom: 1px solid var(--border);
  display: flex; align-items: center; padding: 0 20px;
  flex-shrink: 0;
}
.topbar .logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 15px; font-weight: 700; letter-spacing: 2px; color: var(--cyan);
  text-shadow: 0 0 10px var(--cyan-glow);
}
.topbar .logo svg { width: 22px; height: 22px; fill: var(--cyan); }
.topbar .logo .tag {
  font-size: 10px; font-weight: 400; letter-spacing: 1px;
  background: rgba(0,212,255,0.15); border: 1px solid rgba(0,212,255,0.3);
  color: var(--cyan); padding: 2px 8px; border-radius: 3px; margin-left: 6px;
}
.topbar .spacer { flex: 1; }
.topbar .user {
  display: flex; align-items: center; gap: 12px;
  font-size: 13px; color: var(--text-dim);
}
.topbar .user .name { color: var(--text); }
.topbar .divider { width: 1px; height: 20px; background: var(--border); }
.topbar .icon-btn {
  width: 32px; height: 32px; border-radius: 6px; border: none; background: none;
  color: var(--text-dim); display: flex; align-items: center; justify-content: center;
  transition: all 0.15s; cursor: pointer;
}
.topbar .icon-btn:hover { background: rgba(255,255,255,0.06); color: var(--cyan); }
.topbar .icon-btn svg { width: 16px; height: 16px; fill: currentColor; }

/* ── 主布局 ── */
.layout { height: 100vh; display: flex; flex-direction: column; }
.main { flex: 1; display: flex; overflow: hidden; }

/* ── 侧边导航 ── */
.sidenav {
  width: 220px; background: var(--bg-deep); border-right: 1px solid var(--border);
  flex-shrink: 0; display: flex; flex-direction: column;
  padding: 16px 0;
}
.sidenav-section {
  font-size: 11px; color: var(--text-mute);
  padding: 12px 20px 6px; letter-spacing: 2px; text-transform: uppercase;
}
.nav-item {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 20px; color: var(--text-dim); font-size: 13px;
  border-left: 2px solid transparent; cursor: pointer;
  transition: all 0.15s;
}
.nav-item:hover { background: rgba(0,212,255,0.05); color: var(--text); }
.nav-item.active {
  background: rgba(0,212,255,0.08); color: var(--cyan);
  border-left-color: var(--cyan);
}
.nav-item svg { width: 16px; height: 16px; fill: currentColor; flex-shrink: 0; }
.nav-item .count {
  margin-left: auto; font-size: 10px; padding: 1px 6px;
  background: rgba(255,255,255,0.08); color: var(--text-dim);
  border-radius: 8px;
}
.nav-item.active .count { background: var(--cyan-dim); color: var(--cyan); }

/* ── 内容区 ── */
.content {
  flex: 1; overflow-y: auto; padding: 24px 28px;
}
.page-header {
  display: flex; align-items: center; margin-bottom: 20px;
}
.page-title {
  font-size: 18px; font-weight: 600; color: var(--text); letter-spacing: 1px;
}
.page-sub {
  font-size: 12px; color: var(--text-dim); margin-left: 12px;
  padding-left: 12px; border-left: 1px solid var(--border);
}
.page-header .actions { margin-left: auto; display: flex; gap: 8px; }

/* ── 统计卡片 ── */
.stat-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
  margin-bottom: 22px;
}
.stat-card {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 8px; padding: 18px 20px;
  position: relative; overflow: hidden;
}
.stat-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--cyan); opacity: 0.6;
}
.stat-label { font-size: 12px; color: var(--text-dim); letter-spacing: 1px; }
.stat-value {
  font-size: 26px; font-weight: 700; color: var(--cyan); margin-top: 6px;
  font-variant-numeric: tabular-nums;
}
.stat-delta {
  font-size: 11px; margin-top: 4px; display: inline-flex; align-items: center; gap: 3px;
}
.stat-delta.up { color: var(--green); }
.stat-delta.down { color: var(--red); }

/* ── 表格 ── */
.table-wrap {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 8px; overflow: hidden;
}
.table-toolbar {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 16px; border-bottom: 1px solid var(--border);
}
.table-toolbar .spacer { flex: 1; }
table {
  width: 100%; border-collapse: collapse; font-size: 13px;
}
thead th {
  text-align: left; font-weight: 500; padding: 12px 16px;
  color: var(--text-dim); background: var(--bg-deep);
  border-bottom: 1px solid var(--border); font-size: 12px;
  letter-spacing: 0.5px;
}
tbody td {
  padding: 12px 16px; border-bottom: 1px solid rgba(255,255,255,0.04);
  color: var(--text);
}
tbody tr:hover { background: rgba(0,212,255,0.04); }
tbody tr:last-child td { border-bottom: none; }
td .mono { font-family: 'Consolas', 'Menlo', monospace; font-size: 12px; color: var(--text-dim); }
td .row-actions { display: flex; gap: 10px; }
td .row-actions a {
  font-size: 12px; color: var(--cyan); cursor: pointer;
}
td .row-actions a:hover { color: #33ddff; }
td .row-actions a.danger { color: var(--red); }
td .row-actions a.danger:hover { color: #ff7a7a; }

/* ── 分页 ── */
.pagination {
  display: flex; align-items: center; justify-content: flex-end; gap: 6px;
  padding: 12px 16px; border-top: 1px solid var(--border);
  font-size: 12px; color: var(--text-dim);
}
.page-btn {
  min-width: 28px; height: 28px; padding: 0 8px;
  background: var(--bg3); border: 1px solid var(--border);
  color: var(--text-dim); border-radius: 4px; font-size: 12px;
}
.page-btn:hover { color: var(--cyan); border-color: var(--border-bright); }
.page-btn.active { background: var(--cyan-dim); color: var(--cyan); border-color: var(--cyan); }

/* ── 弹窗 / 抽屉（示意） ── */
.drawer-mask {
  position: fixed; inset: 0; background: rgba(10,15,26,0.6);
  z-index: 90; backdrop-filter: blur(3px);
}
.drawer {
  position: fixed; right: 0; top: 0; bottom: 0; width: 440px;
  background: var(--bg2); border-left: 1px solid var(--border);
  z-index: 100; display: flex; flex-direction: column;
}
.drawer-header {
  padding: 18px 20px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center;
}
.drawer-title { font-size: 15px; font-weight: 600; color: var(--text); }
.drawer-body { flex: 1; padding: 20px; overflow-y: auto; }
.drawer-footer {
  padding: 14px 20px; border-top: 1px solid var(--border);
  display: flex; justify-content: flex-end; gap: 10px;
}

/* ── 表单 ── */
.form-item { margin-bottom: 16px; }
.form-label {
  display: block; font-size: 12px; color: var(--text-dim);
  margin-bottom: 6px; letter-spacing: 0.5px;
}
.form-label .required { color: var(--red); margin-left: 2px; }
.form-item .input, .form-item .select, .form-item textarea { width: 100%; }
.form-item textarea {
  background: var(--bg3); border: 1px solid var(--border);
  color: var(--text); font-size: 13px; font-family: inherit;
  padding: 8px 12px; border-radius: 6px; resize: vertical; min-height: 72px;
  outline: none;
}
.form-item textarea:focus { border-color: var(--cyan); }
.form-hint { font-size: 11px; color: var(--text-mute); margin-top: 4px; }

/* ── 空状态 ── */
.empty {
  padding: 60px 20px; text-align: center; color: var(--text-dim);
}
.empty svg { width: 48px; height: 48px; fill: rgba(0,212,255,0.3); margin: 0 auto 12px; }
.empty .text { font-size: 13px; }
.empty .hint { font-size: 11px; color: var(--text-mute); margin-top: 4px; }

/* ── 标签页 ── */
.tabs-head {
  display: flex; gap: 2px; border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
}
.tabs-head .tab {
  padding: 10px 18px; font-size: 13px; color: var(--text-dim);
  background: none; border: none; border-bottom: 2px solid transparent;
  cursor: pointer; transition: all 0.15s;
}
.tabs-head .tab:hover { color: var(--text); }
.tabs-head .tab.active { color: var(--cyan); border-bottom-color: var(--cyan); }

/* ── 状态点 ── */
.dot {
  display: inline-block; width: 6px; height: 6px; border-radius: 50%;
  margin-right: 6px; vertical-align: middle;
}
.dot-green { background: var(--green); box-shadow: 0 0 6px var(--green); }
.dot-red { background: var(--red); }
.dot-yellow { background: var(--yellow); }
.dot-dim { background: var(--text-mute); }