:root {
  --bg: #f5f7f8;
  --panel: #ffffff;
  --panel-soft: #f9faf9;
  --ink: #18211f;
  --muted: #66706d;
  --line: #dce2df;
  --brand: #156f5b;
  --brand-2: #0f4f80;
  --accent: #c96a3a;
  --warning: #a76405;
  --danger: #b43d3d;
  --ok: #1f7a4c;
  --shadow: 0 14px 32px rgba(24, 33, 31, 0.08);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family:
    Inter, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  letter-spacing: 0;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

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

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 26px;
  padding: 24px 18px;
  border-right: 1px solid var(--line);
  background: #111918;
  color: #f7fbf9;
}

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

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: var(--radius);
  background: #e7f3ef;
  color: var(--brand);
  font-weight: 800;
}

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

.brand span {
  margin-top: 4px;
  color: #aebbb7;
  font-size: 13px;
}

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

.nav-item {
  display: grid;
  grid-template-columns: 24px 1fr;
  align-items: center;
  min-height: 42px;
  border: 0;
  border-radius: var(--radius);
  background: transparent;
  color: #d7dfdc;
  text-align: left;
}

.nav-item:hover,
.nav-item.active {
  background: #23302e;
  color: #ffffff;
}

.sidebar-note {
  margin-top: auto;
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  color: #c9d4d0;
  font-size: 13px;
  line-height: 1.6;
}

.workspace {
  min-width: 0;
  padding: 28px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 22px;
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--brand);
  font-size: 13px;
  font-weight: 700;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: 28px;
}

h2 {
  margin-bottom: 0;
  font-size: 18px;
}

h3 {
  margin-bottom: 8px;
  font-size: 16px;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.sync-status {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 10px;
  border: 1px solid #bdd8cd;
  border-radius: var(--radius);
  background: #eef8f4;
  color: var(--brand);
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

.sync-status.saving {
  border-color: #ead6a8;
  background: #fff8e8;
  color: var(--warning);
}

.sync-status.offline {
  border-color: #e5c0c0;
  background: #fff1f1;
  color: var(--danger);
}

.search-box {
  display: grid;
  grid-template-columns: 22px minmax(180px, 300px);
  align-items: center;
  min-height: 42px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  color: var(--muted);
}

.search-box input {
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--ink);
}

.primary-button,
.secondary-button,
.danger-button,
.text-button,
.icon-button {
  min-height: 40px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  padding: 0 14px;
  font-weight: 700;
}

.primary-button {
  background: var(--brand);
  color: #ffffff;
}

.secondary-button {
  background: #ffffff;
  border-color: var(--line);
  color: var(--ink);
}

.danger-button {
  background: #fff4f2;
  border-color: #f0c4bd;
  color: var(--danger);
}

.text-button,
.icon-button {
  background: transparent;
  color: var(--brand-2);
}

.icon-button {
  width: 38px;
  padding: 0;
  font-size: 26px;
}

.view {
  display: none;
}

.view.active {
  display: block;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 16px;
}

.metric {
  min-height: 132px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
}

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

.metric strong {
  display: block;
  margin: 12px 0 8px;
  font-size: 32px;
}

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

.split-grid,
.settings-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 16px;
  margin-bottom: 16px;
}

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

.panel,
.customer-detail-panel {
  padding: 18px;
}

.panel-heading,
.dialog-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.muted {
  color: var(--muted);
  font-size: 13px;
}

.task-list,
.customer-mini-list,
.customer-list,
.rules-list {
  display: grid;
  gap: 10px;
}

.task-item,
.customer-card,
.mini-card,
.rule-card,
.campaign-card,
.kanban-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-soft);
}

.task-item,
.mini-card,
.rule-card,
.campaign-card,
.kanban-card {
  padding: 12px;
}

.task-item {
  display: grid;
  grid-template-columns: 92px 1fr auto;
  align-items: center;
  gap: 12px;
}

.pill {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  min-height: 24px;
  padding: 0 8px;
  border-radius: 999px;
  background: #e8f2ee;
  color: var(--brand);
  font-size: 12px;
  font-weight: 700;
}

.pill.warning {
  background: #fff2dc;
  color: var(--warning);
}

.pill.danger {
  background: #ffebeb;
  color: var(--danger);
}

.pill.blue {
  background: #e7f0f8;
  color: var(--brand-2);
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

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

th {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.customer-layout {
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  gap: 16px;
}

.filter-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 12px;
}

select,
input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #ffffff;
  color: var(--ink);
}

select,
input {
  min-height: 40px;
  padding: 0 10px;
}

textarea {
  min-height: 92px;
  padding: 10px;
  resize: vertical;
}

.customer-card {
  display: grid;
  gap: 8px;
  padding: 12px;
  text-align: left;
}

.customer-card.active {
  border-color: var(--brand);
  background: #f0f8f5;
}

.customer-card button {
  border: 0;
  background: transparent;
  color: inherit;
  text-align: left;
}

.card-topline,
.detail-topline,
.inline-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.customer-name {
  font-weight: 800;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.detail-header {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  margin-bottom: 18px;
}

.detail-header h2 {
  font-size: 24px;
}

.detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 18px;
}

.info-box {
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-soft);
}

.info-box span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.info-box strong {
  display: block;
  margin-top: 6px;
  overflow-wrap: anywhere;
}

.tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.tab-button {
  min-height: 38px;
  border: 0;
  border-bottom: 3px solid transparent;
  background: transparent;
  color: var(--muted);
  font-weight: 700;
}

.tab-button.active {
  border-color: var(--brand);
  color: var(--brand);
}

.record-list {
  display: grid;
  gap: 10px;
}

.record {
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-soft);
}

.product-record {
  border-left: 4px solid var(--brand);
}

.warranty-record {
  border-left: 4px solid var(--warning);
}

.record-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}

.small-button {
  min-height: 32px;
  padding: 0 10px;
  font-size: 13px;
}

.email-record {
  border-left: 4px solid var(--brand-2);
}

.email-record.inbound {
  border-left-color: var(--accent);
}

.email-record.outbound {
  border-left-color: var(--brand);
}

.record p {
  margin-bottom: 8px;
  color: var(--muted);
  line-height: 1.5;
}

.record-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
}

.email-body {
  margin: 10px 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #ffffff;
}

.email-body summary {
  min-height: 36px;
  padding: 9px 10px;
  color: var(--brand-2);
  cursor: pointer;
  font-weight: 700;
}

.email-body div {
  padding: 0 10px 10px;
  color: var(--muted);
  line-height: 1.6;
  white-space: pre-wrap;
}

.next-action {
  padding: 10px;
  border-radius: var(--radius);
  background: #eef6f3;
  color: var(--ink);
  line-height: 1.5;
}

.kanban {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.kanban-column {
  min-height: 360px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f7f9f8;
}

.kanban-column h3 {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.kanban-stack {
  display: grid;
  gap: 10px;
}

.campaign-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.campaign-card {
  display: grid;
  gap: 10px;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.file-button {
  display: inline-flex;
  align-items: center;
}

.file-button input {
  display: none;
}

dialog {
  width: min(720px, calc(100% - 24px));
  border: 0;
  border-radius: var(--radius);
  padding: 0;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.24);
}

dialog::backdrop {
  background: rgba(17, 25, 24, 0.56);
}

.dialog-card {
  padding: 20px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.form-field {
  display: grid;
  gap: 6px;
}

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

.form-field label {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 18px;
}

#dialogDeleteBtn {
  margin-right: auto;
}

.toast {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 5;
  transform: translateY(18px);
  min-width: 220px;
  padding: 12px 14px;
  border-radius: var(--radius);
  background: #111918;
  color: #ffffff;
  opacity: 0;
  transition:
    opacity 160ms ease,
    transform 160ms ease;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.empty-state {
  padding: 24px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  color: var(--muted);
  text-align: center;
}

body.auth-locked {
  overflow: hidden;
}

body.auth-locked .app-shell {
  display: none;
}

.auth-screen {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background: #f7f8fb;
}

.auth-card {
  width: min(100%, 360px);
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: white;
  box-shadow: 0 20px 60px rgba(16, 24, 40, 0.12);
}

.auth-card .brand-mark {
  margin-bottom: 18px;
}

.auth-card h1 {
  margin: 0 0 6px;
  font-size: 24px;
}

.auth-card p {
  margin: 0;
  color: var(--muted);
}

.auth-field {
  display: grid;
  gap: 8px;
  margin: 22px 0 18px;
  color: var(--text);
  font-weight: 700;
}

.auth-field input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 13px;
  font: inherit;
}

.auth-error {
  min-height: 20px;
  margin-top: 12px !important;
  color: #b42318 !important;
  font-weight: 700;
}

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

  .customer-layout,
  .split-grid,
  .settings-grid {
    grid-template-columns: 1fr;
  }

  .customer-list-panel {
    order: 2;
  }
}

@media (max-width: 780px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: sticky;
    top: 0;
    z-index: 3;
    display: block;
    padding: 12px;
  }

  .brand,
  .sidebar-note {
    display: none;
  }

  .nav-list {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 4px;
  }

  .nav-item {
    grid-template-columns: 1fr;
    justify-items: center;
    min-height: 54px;
    padding: 6px 4px;
    font-size: 12px;
    text-align: center;
  }

  .workspace {
    padding: 16px;
  }

  .topbar,
  .topbar-actions,
  .detail-header {
    align-items: stretch;
    flex-direction: column;
  }

  .topbar {
    display: grid;
  }

  .topbar-actions {
    display: grid;
  }

  .search-box {
    grid-template-columns: 22px 1fr;
  }

  .metrics-grid,
  .kanban,
  .campaign-grid,
  .info-grid,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .task-item {
    grid-template-columns: 1fr;
  }
}