:root {
  --bg: #f5f7fa;
  --panel: #ffffff;
  --ink: #17212b;
  --muted: #687483;
  --line: #d9e1e8;
  --strong-line: #b9c7d4;
  --blue: #2563eb;
  --blue-dark: #1d4ed8;
  --teal: #0f766e;
  --amber: #b45309;
  --danger: #b42318;
  --soft-blue: #e8f0ff;
  --soft-teal: #e6f5f2;
  --soft-amber: #fff4df;
  --radius: 8px;
  --shadow: 0 10px 28px rgba(25, 35, 48, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  letter-spacing: 0;
}

button,
input,
select {
  font: inherit;
}

button {
  border: 1px solid transparent;
  border-radius: 7px;
  min-height: 36px;
  padding: 0 14px;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.56;
}

.primary {
  background: var(--blue);
  color: #fff;
}

.primary:hover {
  background: var(--blue-dark);
}

.secondary {
  background: #fff;
  color: var(--blue-dark);
  border-color: var(--strong-line);
}

.secondary:hover {
  border-color: var(--blue);
  background: var(--soft-blue);
}

.quiet {
  color: var(--muted);
  background: transparent;
}

.quiet:hover {
  color: var(--danger);
  background: #fff0ef;
}

.ghost-link {
  color: var(--blue-dark);
  text-decoration: none;
  padding: 8px 0;
}

.hidden {
  display: none !important;
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 22px 18px;
  background: #102033;
  color: #eff6ff;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.brand {
  display: flex;
  gap: 12px;
  align-items: center;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: #dbeafe;
  color: #14315e;
  font-weight: 800;
}

.brand h1 {
  margin: 0;
  font-size: 18px;
  line-height: 1.2;
}

.brand p,
.panel p,
.login-panel p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.brand p {
  color: #9fb4c8;
}

.nav {
  display: grid;
  gap: 6px;
}

.nav a {
  color: #cbd8e6;
  text-decoration: none;
  padding: 10px 12px;
  border-radius: 7px;
}

.nav a:hover,
.nav a.active {
  color: #fff;
  background: rgba(219, 234, 254, 0.14);
}

.session-box {
  margin-top: auto;
  padding: 12px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  color: #cbd8e6;
  font-size: 13px;
  line-height: 1.6;
}

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

.topbar,
.panel-head,
.toolbar,
.topbar-actions,
.login-actions {
  display: flex;
  align-items: center;
}

.topbar,
.panel-head {
  justify-content: space-between;
  gap: 16px;
}

.topbar {
  margin-bottom: 18px;
}

.topbar h2,
.panel h3,
.login-panel h2 {
  margin: 0;
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--teal);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.toolbar,
.topbar-actions,
.login-actions {
  gap: 8px;
  flex-wrap: wrap;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.metric {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 15px;
  box-shadow: var(--shadow);
}

.metric span {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.metric strong {
  display: block;
  margin-top: 8px;
  font-size: 28px;
  line-height: 1;
}

.metric.accent {
  background: var(--soft-teal);
  border-color: #b7ded6;
}

.panel,
.login-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
  margin-bottom: 18px;
}

.panel.compact {
  padding: 14px 18px;
}

.profile-grid {
  margin-top: 16px;
  display: grid;
  grid-template-columns: repeat(3, minmax(220px, 1fr));
  gap: 12px;
}

.param {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: #fbfcfe;
}

.param label {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  color: var(--ink);
  font-weight: 700;
  font-size: 13px;
}

.param .hint {
  margin: 8px 0 10px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
  min-height: 34px;
}

.param input,
.param select,
.login-panel input {
  width: 100%;
  height: 36px;
  border: 1px solid var(--strong-line);
  border-radius: 7px;
  padding: 0 10px;
  background: #fff;
}

.param .recommended {
  color: var(--teal);
  font-weight: 700;
}

.switch-row {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 36px;
}

.switch-row input {
  width: 18px;
  height: 18px;
}

.seller-list {
  margin-top: 16px;
  display: grid;
  grid-template-columns: repeat(3, minmax(220px, 1fr));
  gap: 10px;
}

.seller {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfe;
}

.seller input {
  margin-top: 2px;
}

.seller strong,
.seller span {
  display: block;
}

.seller span {
  color: var(--muted);
  font-size: 12px;
  margin-top: 3px;
}

.table-wrap {
  margin-top: 16px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 860px;
}

th,
td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  background: #eef3f8;
  color: #344356;
  font-size: 12px;
}

td {
  font-size: 13px;
}

.muted-cell,
.empty {
  color: var(--muted);
}

.tag {
  display: inline-block;
  border-radius: 999px;
  padding: 3px 8px;
  background: var(--soft-blue);
  color: var(--blue-dark);
  font-size: 12px;
}

.tag.up {
  background: var(--soft-amber);
  color: var(--amber);
}

.tag.down {
  background: #f1f5f9;
  color: #475569;
}

.tag.protected {
  background: var(--soft-teal);
  color: var(--teal);
}

.draft-view {
  margin-top: 16px;
}

.draft-title {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.draft-item {
  display: grid;
  grid-template-columns: 28px minmax(180px, 1fr) 140px 160px;
  align-items: center;
  gap: 10px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  margin-bottom: 8px;
  background: #fbfcfe;
}

.draft-item input[type="number"] {
  width: 100%;
  height: 34px;
  border: 1px solid var(--strong-line);
  border-radius: 7px;
  padding: 0 8px;
}

.login-view {
  min-height: calc(100vh - 48px);
  display: grid;
  place-items: center;
}

.login-panel {
  width: min(420px, 100%);
}

.login-panel label {
  display: grid;
  gap: 6px;
  margin-top: 14px;
  color: #344356;
  font-size: 13px;
  font-weight: 700;
}

.login-actions {
  margin-top: 16px;
  justify-content: space-between;
}

.log-view {
  margin-top: 10px;
  padding: 12px;
  min-height: 48px;
  border-radius: 7px;
  background: #0f172a;
  color: #dbeafe;
  font-size: 12px;
  white-space: pre-wrap;
}

@media (max-width: 1100px) {
  .profile-grid,
  .seller-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .metric-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    height: auto;
  }

  .main {
    padding: 14px;
  }

  .profile-grid,
  .seller-list,
  .metric-grid {
    grid-template-columns: 1fr;
  }

  .topbar,
  .panel-head,
  .draft-title {
    align-items: flex-start;
    flex-direction: column;
  }

  .draft-item {
    grid-template-columns: 28px 1fr;
  }
}