:root {
  --bg: #ffffff;
  --bg-soft: #f7f9fc;
  --bg-side: #f8fbff;
  --text: #0f172a;
  --muted: #64748b;
  --line: #e2e8f0;
  --line-strong: #cbd5e1;
  --accent: #2563eb;
  --accent-deep: #1d4ed8;
  --accent-soft: #eff6ff;
  --shadow: 0 1px 0 rgba(15, 23, 42, 0.04), 0 8px 24px rgba(15, 23, 42, 0.04);
  --radius: 14px;
  --font: "Inter", "SF Pro Display", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --side-w: 232px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  font-family: var(--font);
  background: var(--bg-soft);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }

.shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: var(--side-w) 1fr;
}

.sidebar {
  background: var(--bg-side);
  border-right: 1px solid var(--line);
  padding: 1.15rem .9rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  position: sticky;
  top: 0;
  height: 100vh;
}
.side-brand {
  display: flex; align-items: center; gap: .55rem;
  font-weight: 700; letter-spacing: -0.03em;
  padding: .35rem .45rem;
}
.brand-mark {
  width: 18px; height: 18px; border-radius: 5px;
  background: linear-gradient(135deg, #3b82f6, #1d4ed8);
}
.side-brand .brand-logo, .brand-logo {
  width: 28px; height: 28px; object-fit: contain; border-radius: 7px; display: block; background: #fff;
}

.side-nav { display: grid; gap: .25rem; flex: 1; align-content: start; }
.nav-item {
  text-align: left;
  padding: .62rem .75rem;
  border-radius: 10px;
  color: var(--muted);
  font-size: .92rem;
  font-weight: 550;
  transition: background .15s, color .15s;
}
.nav-item:hover { background: #fff; color: var(--accent-deep); }
.nav-item.active {
  background: #fff;
  color: var(--accent-deep);
  border: 1px solid #bfdbfe;
  box-shadow: var(--shadow);
}
.side-foot { display: grid; gap: .35rem; padding-top: .5rem; border-top: 1px solid var(--line); }
.side-link {
  text-align: left;
  padding: .55rem .75rem;
  border-radius: 9px;
  color: var(--muted);
  font-size: .86rem;
}
.side-link:hover { background: #fff; color: var(--accent-deep); }
.side-link.danger:hover { color: #b91c1c; background: #fef2f2; }

.main { padding: 1.35rem 1.75rem 2.5rem; min-width: 0; }
.topbar {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 1rem; margin-bottom: 1.5rem; flex-wrap: wrap;
}
.top-eyebrow {
  color: var(--accent-deep);
  font-size: .72rem; font-weight: 650; letter-spacing: .08em; text-transform: uppercase;
  margin-bottom: .25rem;
}
.topbar h1 { font-size: 1.45rem; letter-spacing: -0.03em; }
.top-meta { display: flex; flex-direction: column; align-items: flex-end; gap: .25rem; }
.company-pill {
  display: inline-flex;
  padding: .28rem .7rem;
  border-radius: 999px;
  background: var(--accent-soft);
  border: 1px solid #bfdbfe;
  color: var(--accent-deep);
  font-size: .82rem; font-weight: 650;
}
.email-muted { color: var(--muted); font-size: .82rem; }

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

.grid-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-bottom: 1.15rem;
}
.stat-card, .detail-card, .empty-block {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.stat-card { padding: 1.15rem 1.2rem; }
.stat-label { color: var(--muted); font-size: .82rem; margin-bottom: .35rem; }
.stat-value { font-size: 1.45rem; font-weight: 720; letter-spacing: -0.03em; }
.stat-note { color: var(--muted); font-size: .82rem; margin-top: .45rem; }

.empty-block { padding: 1.75rem 1.5rem; }
.empty-block h2 { font-size: 1.15rem; margin-bottom: .5rem; }
.empty-block p { color: var(--muted); max-width: 42rem; }
.empty-actions { display: flex; flex-wrap: wrap; gap: .65rem; margin-top: 1.15rem; }

.detail-card { padding: 1.4rem 1.4rem 1.5rem; }
.detail-card h2 { font-size: 1.1rem; margin-bottom: .75rem; }
.hint { color: var(--muted); font-size: .9rem; margin-bottom: 1rem; }

.kv { display: grid; gap: .85rem; }
.kv > div {
  display: grid;
  grid-template-columns: 7.5rem 1fr;
  gap: .75rem;
  padding: .75rem 0;
  border-bottom: 1px solid var(--line);
}
.kv dt { color: var(--muted); font-size: .86rem; }
.kv dd { font-weight: 600; }

.plan-list {
  list-style: none;
  display: grid;
  gap: .55rem;
  margin: 0 0 1.15rem;
}
.plan-list li {
  padding: .75rem .9rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg-soft);
  font-size: .92rem;
}

.bot-grid {
  display: flex; flex-wrap: wrap; gap: .55rem;
}
.bot-chip {
  padding: .45rem .75rem;
  border-radius: 999px;
  background: var(--accent-soft);
  border: 1px solid #bfdbfe;
  color: var(--accent-deep);
  font-size: .84rem; font-weight: 600;
}
.bot-chip.muted {
  background: #fff;
  border-color: var(--line);
  color: var(--muted);
  font-weight: 500;
}

.settings-row {
  display: flex; justify-content: space-between; align-items: center;
  gap: 1rem; flex-wrap: wrap;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--bg-soft);
}
.settings-row p { color: var(--muted); font-size: .86rem; margin-top: .2rem; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--accent);
  color: #fff !important;
  border-radius: 9px; padding: .65rem 1.1rem;
  font-weight: 600; font-size: .88rem;
  border: 1px solid var(--accent-deep);
  box-shadow: 0 1px 2px rgba(29, 78, 216, 0.2);
}
.btn:hover { background: var(--accent-deep); }
.btn-ghost {
  background: #fff;
  color: var(--accent-deep) !important;
  border: 1px solid var(--line-strong);
  box-shadow: none;
}
.btn-ghost:hover { background: var(--accent-soft); border-color: #93c5fd; }

.boot {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: linear-gradient(180deg, #f8fbff, #fff);
}
.boot-card {
  padding: 1rem 1.25rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  color: var(--muted);
  box-shadow: var(--shadow);
}

@media (max-width: 900px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar {
    position: static; height: auto;
    border-right: none; border-bottom: 1px solid var(--line);
  }
  .side-nav { grid-template-columns: repeat(2, 1fr); }
  .grid-cards { grid-template-columns: 1fr; }
  .kv > div { grid-template-columns: 1fr; gap: .2rem; }
  .top-meta { align-items: flex-start; }
}

.grid-cards-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-cards-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 1100px) {
  .grid-cards-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 900px) {
  .grid-cards-4, .grid-cards-3 { grid-template-columns: 1fr; }
}

.toolbar {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 1rem; flex-wrap: wrap; margin-bottom: .85rem;
}
.toolbar h2 { margin-bottom: .2rem; }
.toolbar-right { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }
.inline-hint { margin-bottom: 0; max-width: 36rem; }

.select {
  appearance: none;
  background: #fff;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  padding: .55rem .85rem;
  font-size: .86rem;
  color: var(--text);
  min-width: 8.5rem;
}
.select:focus { outline: 2px solid #93c5fd; outline-offset: 1px; }

.dept-chips {
  display: flex; flex-wrap: wrap; gap: .45rem;
  margin-bottom: .9rem;
}
.chip {
  display: inline-flex; align-items: center; gap: .35rem;
  padding: .28rem .65rem;
  border-radius: 999px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  font-size: .8rem;
  color: var(--muted);
}
.chip strong { color: var(--text); font-weight: 650; }
.chip button {
  color: #94a3b8; font-size: .75rem; padding: 0 .15rem;
}
.chip button:hover { color: #b91c1c; }

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
}
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .86rem;
  min-width: 720px;
}
.data-table th, .data-table td {
  text-align: left;
  padding: .7rem .85rem;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
}
.data-table th {
  background: var(--bg-soft);
  color: var(--muted);
  font-weight: 650;
  font-size: .78rem;
  letter-spacing: .02em;
  white-space: nowrap;
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover { background: #f8fbff; }
.muted-cell { color: var(--muted); text-align: center !important; padding: 1.4rem !important; }
.badge {
  display: inline-flex; padding: .12rem .5rem; border-radius: 999px;
  font-size: .74rem; font-weight: 650;
}
.badge-active { background: #ecfdf5; color: #047857; border: 1px solid #a7f3d0; }
.badge-disabled { background: #f8fafc; color: #64748b; border: 1px solid #e2e8f0; }
.badge-admin { background: var(--accent-soft); color: var(--accent-deep); border: 1px solid #bfdbfe; }
.badge-member { background: #fff; color: var(--muted); border: 1px solid var(--line); }
.row-actions { display: flex; flex-wrap: wrap; gap: .35rem; }
.link-btn {
  color: var(--accent-deep);
  font-size: .8rem; font-weight: 600;
  padding: .2rem .4rem; border-radius: 6px;
}
.link-btn:hover { background: var(--accent-soft); }
.link-btn.danger { color: #b91c1c; }
.link-btn.danger:hover { background: #fef2f2; }

.seg {
  display: inline-flex;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: .2rem;
  gap: .15rem;
}
.seg-btn {
  padding: .4rem .7rem;
  border-radius: 8px;
  font-size: .82rem;
  font-weight: 600;
  color: var(--muted);
}
.seg-btn.active {
  background: #fff;
  color: var(--accent-deep);
  box-shadow: var(--shadow);
  border: 1px solid #bfdbfe;
}
.subhead {
  font-size: .95rem;
  margin: 1.15rem 0 .55rem;
  letter-spacing: -0.02em;
}

.modal[hidden] { display: none !important; }
.modal {
  position: fixed; inset: 0; z-index: 80;
  display: grid; place-items: center;
  padding: 1rem;
}
.modal-backdrop {
  position: absolute; inset: 0;
  background: rgba(15, 23, 42, 0.35);
}
.modal-card {
  position: relative;
  width: min(440px, 100%);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.18);
  padding: 1.25rem 1.25rem 1.1rem;
}
.modal-card h3 { font-size: 1.05rem; margin-bottom: .85rem; }
.modal-actions {
  display: flex; justify-content: flex-end; gap: .5rem;
  margin-top: 1rem;
}
.modal-error {
  color: #b91c1c; font-size: .84rem; margin-top: .65rem;
}
.form-grid { display: grid; gap: .75rem; }
.form-field label {
  display: block; font-size: .8rem; color: var(--muted);
  margin-bottom: .3rem; font-weight: 600;
}
.form-field input, .form-field select {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  padding: .6rem .75rem;
  font: inherit;
  background: #fff;
}
.form-field input:focus, .form-field select:focus {
  outline: 2px solid #93c5fd; outline-offset: 1px;
}