:root {
  --blue: #2563eb;
  --blue-deep: #12388f;
  --blue-soft: #eff6ff;
  --cyan: #06b6d4;
  --green: #16a34a;
  --gold: #f6c85f;
  --yellow: #d97706;
  --red: #dc2626;
  --text: #0f172a;
  --muted: #64748b;
  --line: #e2e8f0;
  --bg: #f8fafc;
  --panel: #ffffff;
}

* { box-sizing: border-box; }

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

.login-page {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) 430px;
  background:
    linear-gradient(135deg, rgba(18, 56, 143, .96), rgba(37, 99, 235, .9) 48%, rgba(6, 182, 212, .82)),
    url("https://images.unsplash.com/photo-1551434678-e076c223a692?auto=format&fit=crop&w=1600&q=80");
  background-size: cover;
  background-position: center;
}

.login-brand-panel {
  position: relative;
  padding: 48px 56px;
  color: #fff;
  overflow: hidden;
}

.login-brand-panel::after {
  content: "";
  position: absolute;
  inset: auto 48px 42px auto;
  width: 420px;
  height: 280px;
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 18px;
  background: rgba(255, 255, 255, .12);
  backdrop-filter: blur(18px);
}

.login-brand {
  position: relative;
  z-index: 1;
  display: flex;
  gap: 12px;
  align-items: center;
}

.login-brand strong {
  display: block;
  font-size: 18px;
}

.login-brand span {
  display: block;
  margin-top: 3px;
  color: rgba(255, 255, 255, .78);
  font-size: 13px;
}

.brand-mark.large {
  width: 46px;
  height: 46px;
  background: linear-gradient(135deg, #fff, #dbeafe);
  color: var(--blue-deep);
}

.login-copy {
  position: relative;
  z-index: 1;
  max-width: 640px;
  margin-top: 86px;
}

.login-kicker {
  display: inline-flex;
  padding: 7px 10px;
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: 999px;
  background: rgba(255, 255, 255, .12);
  color: #dbeafe;
  font-size: 12px;
  font-weight: 700;
}

.login-copy h1 {
  margin-top: 20px;
  max-width: 720px;
  font-size: 52px;
  line-height: 1.08;
  letter-spacing: 0;
}

.login-copy p {
  max-width: 560px;
  margin-top: 18px;
  color: rgba(255, 255, 255, .82);
  font-size: 17px;
  line-height: 1.8;
}

.feature-strip {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  max-width: 700px;
  gap: 12px;
  margin-top: 42px;
}

.feature-strip div {
  padding: 15px;
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 8px;
  background: rgba(255, 255, 255, .12);
}

.feature-strip strong,
.feature-strip span {
  display: block;
}

.feature-strip span {
  margin-top: 5px;
  color: rgba(255, 255, 255, .75);
  font-size: 12px;
}

.product-preview {
  position: absolute;
  z-index: 1;
  right: 82px;
  bottom: 76px;
  width: 360px;
  height: 220px;
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 14px;
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: 16px;
  background: rgba(15, 23, 42, .22);
  backdrop-filter: blur(18px);
  box-shadow: 0 28px 80px rgba(15, 23, 42, .28);
}

.preview-sidebar,
.preview-main {
  display: grid;
  gap: 10px;
}

.preview-sidebar span,
.preview-top,
.preview-grid span,
.preview-row {
  border-radius: 6px;
  background: rgba(255, 255, 255, .32);
}

.preview-sidebar span { height: 22px; }
.preview-top { height: 34px; }
.preview-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}
.preview-grid span { height: 42px; }
.preview-row { height: 22px; }
.preview-row.strong { background: rgba(246, 200, 95, .58); }
.preview-row.short { width: 68%; }

.login-card {
  align-self: center;
  margin-right: 56px;
  padding: 34px;
  border: 1px solid rgba(226, 232, 240, .86);
  border-radius: 18px;
  background: rgba(255, 255, 255, .94);
  box-shadow: 0 28px 90px rgba(15, 23, 42, .24);
}

.login-card-header h2 {
  margin-top: 12px;
  font-size: 28px;
}

.login-card-header p {
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.7;
}

.login-status {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--blue-soft);
  color: var(--blue);
  font-size: 12px;
  font-weight: 700;
}

.login-form {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}

.login-form label {
  display: grid;
  gap: 7px;
  color: #334155;
  font-size: 13px;
  font-weight: 700;
}

.login-button {
  width: 100%;
  margin-top: 6px;
  padding: 12px 16px;
}

.login-error {
  min-height: 20px;
  color: var(--red);
  font-size: 13px;
}

.login-footnote {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.login-footnote span {
  padding: 6px 9px;
  border-radius: 999px;
  background: #f8fafc;
  color: #64748b;
  font-size: 12px;
}

.app-shell {
  min-height: 100vh;
  display: none;
}

.app-shell.authenticated {
  display: flex;
}

.sidebar {
  width: 220px;
  padding: 16px;
  background: #fff;
  border-right: 1px solid var(--line);
}

.brand {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-bottom: 24px;
}

.brand-mark {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  color: #fff;
  background: var(--blue);
  font-weight: 700;
}

.brand span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  margin-top: 2px;
}

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

.nav-item {
  border: 0;
  background: transparent;
  padding: 10px 12px;
  border-radius: 8px;
  text-align: left;
  color: #334155;
  cursor: pointer;
}

.nav-item.active {
  color: var(--blue);
  background: var(--blue-soft);
  font-weight: 600;
}

.main {
  flex: 1;
  padding: 22px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

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

h1, h2, p {
  margin: 0;
}

h1 {
  font-size: 24px;
}

h2 {
  font-size: 16px;
}

.topbar p {
  color: var(--muted);
  margin-top: 6px;
  font-size: 13px;
}

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

.stats-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}

.stat-card, .panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.stat-card {
  padding: 16px;
}

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

.stat-card strong {
  display: block;
  font-size: 26px;
  margin-top: 8px;
}

.status-strip {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 14px;
}

.status-strip div, .status-note {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 12px 14px;
}

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

.status-strip strong {
  display: block;
  margin-top: 4px;
  font-size: 15px;
}

.panel {
  margin-bottom: 14px;
  overflow: hidden;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 2fr auto;
  gap: 10px;
  padding: 16px;
}

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

input, select, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 14px;
  background: #fff;
  color: var(--text);
  font-family: inherit;
}

textarea {
  line-height: 1.65;
  resize: vertical;
  min-height: 44px;
}

.button {
  border: 0;
  border-radius: 8px;
  padding: 10px 14px;
  color: #fff;
  background: var(--blue);
  cursor: pointer;
  font-weight: 600;
}

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

.button.ghost {
  color: #475569;
  background: #fff;
  border: 1px solid var(--line);
}

.split {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 14px;
}

.triple {
  display: grid;
  grid-template-columns: 280px 1fr 300px;
  gap: 14px;
}

.list {
  display: grid;
}

.list-item {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
}

.list-item:hover {
  background: #f8fafc;
}

.list-item strong {
  display: block;
  margin-bottom: 4px;
}

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

.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  background: #f1f5f9;
  color: #475569;
}

.badge.red { background: #fef2f2; color: var(--red); }
.badge.yellow { background: #fffbeb; color: var(--yellow); }
.badge.green { background: #f0fdf4; color: var(--green); }

.messages {
  min-height: 320px;
  padding: 16px;
  display: grid;
  gap: 10px;
  align-content: start;
}

.message {
  max-width: 760px;
  padding: 10px 12px;
  border-radius: 8px;
  background: #f1f5f9;
}

.message.agent, .message.ai {
  margin-left: auto;
  background: var(--blue-soft);
}

.ai-box {
  margin: 0 16px 16px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fafc;
}

.queue-item {
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
}

.queue-item:last-child {
  border-bottom: 0;
}

.queue-item p {
  margin-top: 4px;
}

.profile-box {
  padding: 14px;
  display: grid;
  gap: 10px;
}

.profile-box strong {
  display: block;
}

.row-actions {
  margin-top: 8px;
}

.setup-steps {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 14px;
}

.section-tabs {
  display: inline-flex;
  gap: 6px;
  padding: 4px;
  margin-bottom: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.section-tabs button {
  border: 0;
  border-radius: 6px;
  padding: 8px 14px;
  background: transparent;
  color: #475569;
  cursor: pointer;
  font-weight: 600;
}

.section-tabs button.active {
  color: var(--blue);
  background: var(--blue-soft);
}

.knowledge-panel {
  display: none;
}

.knowledge-panel.active {
  display: block;
}

.knowledge-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.compact-list .list-item {
  cursor: default;
}

.step {
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--muted);
  font-size: 13px;
}

.step.done {
  color: var(--blue);
  background: var(--blue-soft);
  border-color: #bfdbfe;
}

.toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px;
}

.compact-form {
  align-items: center;
  padding-top: 0;
}

.inline-toggle {
  padding: 0;
  min-height: 42px;
}

.panel-subtitle {
  margin-top: 5px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.material-workbench,
.campaign-task-grid,
.campaign-builder,
.brief-grid,
.guardrail-grid,
.ai-duty-grid {
  display: grid;
  gap: 12px;
  padding: 16px;
}

.campaign-builder {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.material-workbench {
  grid-template-columns: minmax(0, 1.15fr) minmax(340px, .85fr);
}

.material-editor {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.material-editor .wide {
  grid-column: span 3;
}

.material-list {
  display: grid;
  align-content: start;
  gap: 10px;
  max-height: 560px;
  overflow: auto;
}

.material-library {
  display: grid;
  gap: 10px;
  min-width: 0;
}

.material-filter-bar {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(120px, .8fr) minmax(120px, .8fr);
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fafc;
}

.material-list-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  color: #334155;
  font-size: 13px;
}

.material-list-head span {
  color: var(--muted);
}

.material-item {
  display: grid;
  gap: 8px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.material-item-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.material-item-head strong {
  min-width: 0;
  line-height: 1.35;
}

.material-item p {
  color: #334155;
  font-size: 13px;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.material-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  min-height: 20px;
}

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

.material-item .button {
  justify-self: start;
  padding: 8px 10px;
  font-size: 12px;
}

.campaign-task-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.campaign-task-grid .wide {
  grid-column: span 4;
}

.campaign-segments {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fafc;
  overflow: hidden;
}

.segment-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.segment-toolbar strong,
.segment-toolbar span {
  display: block;
}

.segment-toolbar span {
  margin-top: 3px;
  color: var(--muted);
  font-size: 13px;
}

.campaign-segment-list {
  display: grid;
  gap: 12px;
  padding: 14px;
}

.campaign-segment-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  overflow: hidden;
}

.segment-card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  background: #f8fafc;
}

.segment-card-head .button {
  padding: 7px 9px;
  font-size: 12px;
}

.segment-card-grid {
  display: grid;
  grid-template-columns: minmax(130px, .7fr) minmax(170px, 1fr) minmax(180px, 1fr);
  gap: 12px;
  padding: 12px;
}

.segment-card-grid .wide {
  grid-column: span 3;
}

.field-stack {
  display: grid;
  align-content: start;
  gap: 7px;
  color: #334155;
  font-size: 13px;
  font-weight: 700;
}

.field-stack.wide {
  grid-column: span 2;
}

.campaign-builder .field-stack.wide {
  grid-column: span 4;
}

.field-stack small {
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.6;
}

.assistant-tip {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin: 0 16px 16px;
  padding: 12px 14px;
  border: 1px solid #bfdbfe;
  border-radius: 8px;
  background: #eff6ff;
  color: #1d4ed8;
  font-size: 13px;
  line-height: 1.7;
}

.assistant-tip strong {
  flex: 0 0 auto;
  color: #1e40af;
}

.ai-duty-card {
  margin-bottom: 14px;
  border: 1px solid #bfdbfe;
  border-radius: 8px;
  background: #fff;
  overflow: hidden;
  box-shadow: 0 16px 38px rgba(37, 99, 235, .08);
}

.ai-duty-toolbar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  padding: 16px;
  background: linear-gradient(90deg, #eff6ff, #fff);
  border-bottom: 1px solid #dbeafe;
}

.ai-duty-toolbar p {
  margin-top: 6px;
  color: var(--muted);
  font-size: 13px;
}

.ai-duty-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr)) 160px 150px;
  align-items: end;
}

.ai-duty-toggle {
  min-height: 42px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fafc;
  font-size: 13px;
  font-weight: 700;
}

.settings-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(360px, .85fr);
  gap: 14px;
  align-items: start;
}

.ai-brief-panel {
  grid-row: span 2;
}

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

.task-template-panel .brief-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
}

.template-list {
  display: grid;
}

.template-row {
  width: 100%;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 14px 16px;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: #fff;
  color: var(--text);
  text-align: left;
  cursor: pointer;
}

.template-row:hover,
.template-row.active {
  background: var(--blue-soft);
}

.template-row strong,
.template-row small {
  display: block;
}

.template-row small {
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

.template-row em {
  padding: 4px 8px;
  border-radius: 999px;
  background: #f1f5f9;
  color: #475569;
  font-size: 12px;
  font-style: normal;
  white-space: nowrap;
}

.template-row.active em {
  background: #dbeafe;
  color: var(--blue);
}

.guardrail-grid {
  grid-template-columns: minmax(180px, .8fr) minmax(220px, 1fr);
}

.force-reply-panel .guardrail-grid {
  grid-template-columns: 1fr;
}

.force-reply-panel .field-stack.wide {
  grid-column: auto;
}

.guardrail-toggle {
  min-height: 74px;
  border: 1px solid #fecaca;
  border-radius: 8px;
  background: #fef2f2;
  color: #991b1b;
  font-weight: 700;
}

@media (max-width: 900px) {
  .login-page { display: block; }
  .login-brand-panel { padding: 28px 20px 160px; }
  .login-copy { margin-top: 44px; }
  .login-copy h1 { font-size: 36px; }
  .feature-strip { grid-template-columns: 1fr; }
  .product-preview { display: none; }
  .login-card { margin: -120px 16px 24px; position: relative; z-index: 2; }
  #app { display: none; }
  #app.authenticated { display: block; }
  .sidebar { width: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  nav { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .stats-grid,
  .status-strip,
  .split,
  .triple,
  .setup-steps,
  .form-grid,
  .form-grid.two,
  .knowledge-grid,
  .settings-layout,
  .material-workbench,
  .material-editor,
  .material-filter-bar,
  .campaign-task-grid,
  .segment-card-grid,
  .campaign-builder,
  .brief-grid,
  .guardrail-grid,
  .ai-duty-grid,
  .ai-brief-panel .brief-grid,
  .task-template-panel .brief-grid {
    grid-template-columns: 1fr;
  }
  .field-stack.wide,
  .campaign-builder .field-stack.wide,
  .segment-card-grid .wide,
  .material-editor .wide,
  .campaign-task-grid .wide {
    grid-column: auto;
  }
  .segment-toolbar {
    flex-direction: column;
  }
  .ai-duty-toolbar {
    align-items: stretch;
    flex-direction: column;
  }
}