:root {
  --bg: #0f1720;
  --panel: #16212b;
  --panel-2: #101820;
  --line: rgba(255, 255, 255, 0.09);
  --text: #eaf1f5;
  --muted: #9eb0bb;
  --accent: #29c08a;
  --accent-2: #f0b74b;
  --danger: #ea6d70;
  --shadow: 0 14px 40px rgba(0, 0, 0, 0.28);
  --radius: 16px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  color: var(--text);
  background: radial-gradient(circle at 20% 0%, #1c2a36 0%, #0f1720 35%, #0a1118 100%);
  font-family: "Avenir Next", "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
}

body {
  position: relative;
}

.bg-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: radial-gradient(circle at 50% 30%, black 25%, transparent 90%);
}

.shell {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  padding: 24px;
}

.hidden {
  display: none !important;
}

.login-card {
  width: min(960px, 100%);
  margin: 5vh auto;
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 20px;
  background: linear-gradient(180deg, rgba(26, 38, 49, 0.96), rgba(16, 24, 32, 0.95));
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 24px;
  box-shadow: var(--shadow);
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  line-height: 1.15;
}

h1 {
  font-size: clamp(28px, 4vw, 40px);
}

.muted {
  color: var(--muted);
}

.small {
  font-size: 12px;
}

.stack {
  display: grid;
  gap: 12px;
  align-content: start;
}

label {
  display: grid;
  gap: 6px;
}

label > span {
  font-size: 13px;
  color: var(--muted);
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  border-radius: 10px;
  padding: 10px 12px;
  font: inherit;
}

textarea {
  min-height: 84px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid rgba(41, 192, 138, 0.35);
  border-color: rgba(41, 192, 138, 0.5);
}

.btn {
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 10px 14px;
  font: inherit;
  cursor: pointer;
  transition: 0.18s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #1b9d77);
  color: #07120d;
  font-weight: 700;
}

.btn-secondary {
  background: rgba(240, 183, 75, 0.12);
  border-color: rgba(240, 183, 75, 0.3);
  color: #ffd68c;
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--line);
  color: var(--text);
}

.btn-danger {
  background: rgba(234, 109, 112, 0.12);
  border-color: rgba(234, 109, 112, 0.25);
  color: #ffb0b3;
}

.error {
  min-height: 18px;
  margin: 0;
  color: #ff9ca1;
  font-size: 13px;
}

.demo-box {
  margin-top: 8px;
  padding: 12px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.025);
  border: 1px dashed rgba(255, 255, 255, 0.11);
}

.demo-title {
  margin: 0 0 8px;
  font-size: 13px;
  color: var(--muted);
}

.demo-box ul {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 6px;
}

.demo-box code {
  color: #d7ffe5;
}

.app-frame {
  display: grid;
  grid-template-columns: 280px 1fr;
  min-height: calc(100vh - 48px);
  gap: 16px;
}

.sidebar {
  background: linear-gradient(180deg, rgba(20, 30, 40, 0.94), rgba(13, 20, 27, 0.94));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 16px;
  box-shadow: var(--shadow);
}

.brand h2 {
  font-size: 22px;
}

.nav-menu {
  display: grid;
  gap: 8px;
  align-content: start;
}

.nav-btn {
  width: 100%;
  text-align: left;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid transparent;
  color: var(--text);
  padding: 11px 12px;
  border-radius: 10px;
}

.nav-btn.active {
  background: rgba(41, 192, 138, 0.12);
  border-color: rgba(41, 192, 138, 0.3);
}

.sidebar-foot {
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

.content {
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 14px;
}

.topbar {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(18, 27, 35, 0.85);
  padding: 16px 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow);
}

.topbar-actions {
  display: flex;
  gap: 8px;
}

.page-section {
  min-height: 0;
  display: block;
}

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

.card {
  background: rgba(18, 27, 35, 0.9);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px;
  box-shadow: var(--shadow);
}

.metric-value {
  font-size: 28px;
  font-weight: 700;
  margin-top: 6px;
}

.layout-2 {
  margin-top: 12px;
  display: grid;
  gap: 12px;
  grid-template-columns: 1.35fr 1fr;
}

.table-wrap {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 12px;
}

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

th,
td {
  padding: 10px 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  text-align: left;
  font-size: 13px;
  vertical-align: top;
}

th {
  color: var(--muted);
  font-weight: 600;
  background: rgba(255, 255, 255, 0.015);
  position: sticky;
  top: 0;
}

.badge {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 2px 8px;
  font-size: 12px;
  white-space: nowrap;
}

.badge.status-new { color: #98d7ff; border-color: rgba(152, 215, 255, 0.25); }
.badge.status-contacted { color: #ffe08d; border-color: rgba(255, 224, 141, 0.25); }
.badge.status-qualified { color: #b8ffc4; border-color: rgba(184, 255, 196, 0.25); }
.badge.status-inactive { color: #ffb1b1; border-color: rgba(255, 177, 177, 0.25); }
.badge.status-active { color: #b8ffc4; border-color: rgba(184, 255, 196, 0.25); }

.section-shell {
  display: grid;
  gap: 12px;
  grid-template-rows: auto 1fr;
}

.toolbar {
  display: grid;
  grid-template-columns: 1.2fr 150px 150px 180px 180px auto;
  gap: 10px;
}

.filter-dropdown {
  position: relative;
}

.filter-dropdown[open] {
  z-index: 20;
}

.filter-dropdown__trigger {
  list-style: none;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  border-radius: 10px;
  padding: 10px 12px;
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  cursor: pointer;
}

.filter-dropdown__trigger::-webkit-details-marker {
  display: none;
}

.filter-dropdown__label {
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}

.filter-dropdown__value {
  font-size: 13px;
  text-align: right;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.filter-dropdown__panel {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  background: rgba(20, 30, 40, 0.98);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 8px;
  max-height: 220px;
  overflow: auto;
}

.filter-check-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 8px;
  border-radius: 8px;
}

.filter-check-item:hover {
  background: rgba(255, 255, 255, 0.03);
}

.filter-check-item input {
  width: auto;
  margin: 0;
  padding: 0;
}

.filter-check-item span {
  font-size: 13px;
  color: var(--text);
}

.panel-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 12px;
  min-height: 0;
}

.form-panel {
  display: grid;
  gap: 10px;
  align-content: start;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.form-grid .full {
  grid-column: 1 / -1;
}

.form-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.row-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.row-actions .btn {
  padding: 6px 10px;
  font-size: 12px;
}

.hint {
  margin: 0;
  font-size: 12px;
  color: var(--muted);
}

.checkbox-list-wrap {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.02);
  padding: 10px;
  display: grid;
  gap: 8px;
}

.site-code-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(108px, 1fr));
  gap: 8px;
}

.site-code-item {
  display: flex;
  align-items: center;
  gap: 6px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  padding: 6px 8px;
  background: rgba(255, 255, 255, 0.015);
}

.site-code-item input {
  width: auto;
  margin: 0;
  padding: 0;
}

.site-code-item span {
  font-size: 12px;
}

.list {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 8px;
}

.list li {
  color: var(--muted);
  line-height: 1.4;
}

.split-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}

@media (max-width: 1100px) {
  .app-frame {
    grid-template-columns: 1fr;
  }

  .sidebar {
    grid-template-rows: auto auto auto;
  }

  .panel-grid,
  .layout-2 {
    grid-template-columns: 1fr;
  }

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

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

}

@media (max-width: 760px) {
  .shell {
    padding: 12px;
  }

  .login-card {
    grid-template-columns: 1fr;
    margin: 0;
  }

  .grid-cards {
    grid-template-columns: 1fr;
  }

  .toolbar {
    grid-template-columns: 1fr;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .topbar {
    align-items: start;
    flex-direction: column;
  }
}