:root {
  --bg: #0b0f14;
  --surface: #141b24;
  --surface2: #1a2330;
  --border: #243044;
  --text: #e8edf4;
  --muted: #8b9cb3;
  --accent: #3d8bfd;
  --accent2: #22c997;
  --warn: #f0b429;
  --danger: #f56565;
  --a: #3d8bfd;
  --b: #a78bfa;
  --c: #22c997;
  --abc: #f0b429;
  font-family: "SF Pro Text", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

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

body {
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

/* ── 整体双栏布局 ── */
.app-layout {
  display: flex;
  min-height: 100vh;
  position: relative;
  z-index: 1;
}

/* ── 左侧边栏 ── */
.sidebar {
  width: 220px;
  flex-shrink: 0;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 24px 0 24px;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 18px 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 0 10px;
}

.sidebar-nav-item {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 10px 12px;
  border-radius: 10px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background 0.15s, border-color 0.15s;
}
.sidebar-nav-item:hover {
  background: var(--surface2);
}
.sidebar-nav-item.active {
  background: rgba(61, 139, 253, 0.12);
  border-color: rgba(61, 139, 253, 0.35);
}
.sidebar-nav-item .nav-name {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text);
}
.sidebar-nav-item.active .nav-name {
  color: var(--accent);
}
.sidebar-nav-item .nav-desc {
  font-size: 0.75rem;
  color: var(--muted);
  line-height: 1.4;
}
.sidebar-nav-item.sub {
  margin-left: 12px;
  padding-left: 16px;
  border-left: 2px solid var(--border);
}
.sidebar-nav-item.sub .nav-name {
  font-size: 0.85rem;
}

/* ── 右侧主内容区 ── */
.main-content {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(61, 139, 253, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(61, 139, 253, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  z-index: 0;
}

.header, .status-bar, .stats, .sms-preview, .tabs, .panels, .footer {
  position: relative;
  z-index: 1;
  padding: 0 28px;
}

.header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 24px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
}

.header-model-title { display: flex; align-items: center; }
.model-page-subtitle {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}

.logo {
  width: 38px; height: 38px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-radius: 10px;
  font-size: 16px;
  color: #fff;
  flex-shrink: 0;
}
h1 { font-size: 1.1rem; font-weight: 700; letter-spacing: -0.02em; }
.subtitle { color: var(--muted); font-size: 0.78rem; }

.header-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.field-inline { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 0.85rem; }
select {
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 8px;
  min-width: 140px;
}

.btn {
  border: none;
  border-radius: 8px;
  padding: 9px 16px;
  font-size: 0.9rem;
  cursor: pointer;
  transition: transform 0.12s, opacity 0.12s;
}
.btn:hover:not(:disabled) { transform: translateY(-1px); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn.primary { background: var(--accent); color: #fff; }
.btn.ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

.setup-banner {
  margin-bottom: 16px;
  border-color: rgba(245, 101, 101, 0.45);
  background: rgba(245, 101, 101, 0.08);
}
.setup-banner h3 { color: #ffb4b4; margin-bottom: 10px; }
.setup-banner ol {
  margin-left: 1.2rem;
  color: var(--text);
  font-size: 0.9rem;
}
.setup-banner li { margin-bottom: 6px; }
.setup-hint { margin-top: 10px; font-size: 0.82rem; color: var(--muted); }
.setup-hint code {
  background: var(--surface2);
  padding: 2px 6px;
  border-radius: 4px;
}

.status-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 20px;
  font-size: 0.9rem;
}
.badge {
  font-size: 0.75rem;
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(34, 201, 151, 0.15);
  color: var(--accent2);
}
.badge.warn { background: rgba(240, 180, 41, 0.15); color: var(--warn); }
.hidden { display: none !important; }

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
  margin-bottom: 22px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 18px;
  border-left: 4px solid var(--accent);
}
.stat-card[data-cat="A"] { border-left-color: var(--a); }
.stat-card[data-cat="B"] { border-left-color: var(--b); }
.stat-card[data-cat="C"] { border-left-color: var(--c); }
.stat-card[data-cat="ABC"] { border-left-color: var(--abc); }
.stat-card h4 { font-size: 0.8rem; color: var(--muted); margin-bottom: 6px; }
.stat-card .count { font-size: 2rem; font-weight: 700; }
.stat-card p { font-size: 0.78rem; color: var(--muted); margin-top: 6px; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 18px;
  margin-bottom: 20px;
}
.card h3 { font-size: 0.95rem; margin-bottom: 10px; }
.card pre {
  white-space: pre-wrap;
  word-break: break-all;
  font-size: 0.85rem;
  color: var(--muted);
  font-family: ui-monospace, monospace;
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}
.tab {
  padding: 8px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  cursor: pointer;
  font-size: 0.88rem;
}
.tab.active {
  background: var(--surface2);
  color: var(--text);
  border-color: var(--accent);
}

.entry-toolbar {
  margin-bottom: 14px;
  padding: 12px 16px;
}
.entry-toolbar-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
}

.panel { display: none; }
.panel.active { display: block; }

.table-wrap {
  overflow-x: auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
th, td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
th {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.8rem;
  background: var(--surface2);
}
tr:hover td { background: rgba(61, 139, 253, 0.06); }
.empty {
  padding: 48px 20px;
  text-align: center;
  color: var(--muted);
}

.tag-new {
  display: inline-block;
  font-size: 0.72rem;
  padding: 2px 8px;
  margin-left: 6px;
  border-radius: 999px;
  background: rgba(240, 180, 41, 0.18);
  color: var(--warn);
  vertical-align: middle;
}

.stock-link {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}
.stock-link:hover {
  text-decoration: underline;
  color: var(--accent2);
}

.entry-group {
  margin-bottom: 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}
.entry-group summary {
  cursor: pointer;
  padding: 10px 14px;
  background: var(--surface2);
  font-weight: 600;
  font-size: 0.88rem;
  list-style: none;
}
.entry-group summary::-webkit-details-marker { display: none; }
.entry-group .table-wrap {
  border: none;
  border-radius: 0;
}

.footer {
  padding: 32px 20px 40px;
  color: var(--muted);
  font-size: 0.8rem;
  text-align: center;
}

.spin::after {
  content: "";
  display: inline-block;
  width: 12px; height: 12px;
  margin-left: 8px;
  border: 2px solid var(--muted);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  vertical-align: middle;
}
@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 768px) {
  .app-layout { flex-direction: column; }
  .sidebar {
    width: 100%;
    height: auto;
    position: static;
    flex-direction: row;
    align-items: center;
    padding: 12px 16px;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .sidebar-brand {
    border-bottom: none;
    margin-bottom: 0;
    padding: 0 16px 0 0;
    border-right: 1px solid var(--border);
    margin-right: 12px;
  }
  .sidebar-nav {
    flex-direction: row;
    gap: 6px;
    padding: 0;
  }
  .sidebar-nav-item {
    flex-direction: row;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
  }
  .sidebar-nav-item .nav-desc { display: none; }
  .header { padding-top: 14px; }
  .stat-card .count { font-size: 1.6rem; }
  .header, .status-bar, .stats, .sms-preview, .tabs, .panels, .footer {
    padding: 0 14px;
  }
}