:root {
  --bg: #f6f7fb;
  --surface: #ffffff;
  --surface-soft: #eef2f7;
  --ink: #172033;
  --muted: #647084;
  --line: #d9e0ea;
  --teal: #0f766e;
  --teal-soft: #dff7f3;
  --indigo: #3730a3;
  --indigo-soft: #e8e7ff;
  --amber: #b45309;
  --amber-soft: #fff3d8;
  --red: #b91c1c;
  --red-soft: #fee2e2;
  --green: #15803d;
  --green-soft: #dcfce7;
  --shadow: 0 14px 40px rgba(23, 32, 51, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 15px;
  line-height: 1.45;
}

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

button {
  cursor: pointer;
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
}

.app-shell.hidden {
  display: none;
}

.auth-gate {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background: linear-gradient(135deg, #101827 0%, #0f766e 52%, #3730a3 100%);
}

.auth-card {
  width: min(460px, 100%);
  background: var(--surface);
  border-radius: 8px;
  padding: 24px;
  box-shadow: var(--shadow);
}

.auth-brand {
  color: var(--ink);
}

.auth-brand .brand-mark {
  background: #101827;
  color: #ffffff;
}

.auth-copy {
  color: var(--muted);
  margin: 18px 0;
}

.sidebar {
  background: #101827;
  color: #f8fafc;
  padding: 24px 18px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: sticky;
  top: 0;
  height: 100vh;
}

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

.brand-mark {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: #f8fafc;
  color: #101827;
  font-weight: 800;
}

.brand-block h1,
.brand-block p,
.topbar h2,
.eyebrow,
.panel h3,
.panel h4 {
  margin: 0;
}

.brand-block h1 {
  font-size: 18px;
}

.brand-block p {
  color: #b9c3d3;
  font-size: 13px;
}

.nav-list {
  display: grid;
  gap: 8px;
}

.nav-item {
  width: 100%;
  min-height: 42px;
  border: 1px solid transparent;
  background: transparent;
  color: #cbd5e1;
  text-align: left;
  padding: 10px 12px;
  border-radius: 8px;
}

.nav-item:hover,
.nav-item.active {
  background: #1e293b;
  color: #ffffff;
  border-color: #334155;
}

.sidebar-footer {
  margin-top: auto;
  display: grid;
  gap: 10px;
}

.mini-stat {
  border: 1px solid #334155;
  border-radius: 8px;
  padding: 12px;
  background: #172033;
}

.mini-stat span {
  display: block;
  color: #b9c3d3;
  font-size: 12px;
}

.mini-stat strong {
  display: block;
  margin-top: 4px;
  font-size: 13px;
}

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

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  margin-bottom: 20px;
}

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

.topbar h2 {
  font-size: 28px;
}

.top-actions,
.form-actions,
.panel-heading,
.task-entry {
  display: flex;
  align-items: center;
  gap: 10px;
}

.panel-heading {
  justify-content: space-between;
  margin-bottom: 14px;
}

.primary-btn,
.secondary-btn,
.danger-btn {
  min-height: 38px;
  border-radius: 8px;
  border: 1px solid transparent;
  padding: 8px 14px;
  font-weight: 700;
  white-space: nowrap;
}

.primary-btn {
  background: var(--teal);
  color: white;
}

.secondary-btn {
  background: var(--surface);
  color: var(--ink);
  border-color: var(--line);
}

.danger-btn {
  background: var(--red-soft);
  color: var(--red);
  border-color: #fecaca;
}

.view {
  display: none;
}

.view.active {
  display: block;
}

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

.signal,
.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.signal {
  padding: 16px;
}

.signal span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 8px;
}

.signal strong {
  display: block;
  font-size: 16px;
}

.layout-two {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 16px;
  margin-bottom: 16px;
  align-items: start;
}

.layout-two.wide-left {
  grid-template-columns: minmax(0, 1.35fr) minmax(340px, 0.65fr);
}

.panel {
  padding: 18px;
  min-width: 0;
}

.sticky-panel {
  position: sticky;
  top: 24px;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  border-radius: 999px;
  padding: 5px 10px;
  background: var(--teal-soft);
  color: var(--teal);
  font-size: 12px;
  font-weight: 700;
}

.badge.warn {
  background: var(--amber-soft);
  color: var(--amber);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

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

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 11px;
  color: var(--ink);
  background: #ffffff;
}

textarea {
  resize: vertical;
}

.form-actions {
  grid-column: 1 / -1;
  justify-content: flex-end;
}

.summary-box {
  border: 1px solid var(--line);
  background: var(--surface-soft);
  border-radius: 8px;
  padding: 14px;
  min-height: 92px;
}

.summary-box h4,
.summary-box p {
  margin: 0 0 8px;
}

.panel-divider {
  height: 1px;
  background: var(--line);
  margin: 16px 0;
}

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

.operator-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: #ffffff;
}

.operator-card header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: start;
}

.operator-card h4 {
  margin: 0 0 4px;
}

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

.operator-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.compact .operator-card {
  box-shadow: none;
}

.prompt-box {
  min-height: 260px;
  max-height: 620px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  background: #0f172a;
  color: #f8fafc;
  padding: 16px;
  border-radius: 8px;
  border: 1px solid #1e293b;
}

.task-entry {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 160px auto;
  margin-bottom: 12px;
}

.task-list {
  display: grid;
  gap: 8px;
}

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

.inbox-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: #ffffff;
  display: grid;
  gap: 10px;
}

.inbox-card.selected {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px var(--teal-soft);
}

.inbox-card header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: start;
}

.inbox-card h4,
.inbox-card p,
.inbox-detail h4,
.inbox-detail p {
  margin: 0;
}

.inbox-card p,
.inbox-detail p,
.inbox-detail li {
  color: var(--muted);
}

.inbox-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

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

.inbox-detail {
  display: grid;
  gap: 12px;
}

.inbox-detail ul {
  margin: 6px 0 0;
  padding-left: 20px;
}

.task-row {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
}

.task-type {
  background: var(--indigo-soft);
  color: var(--indigo);
  border-radius: 999px;
  padding: 4px 8px;
  font-size: 12px;
  font-weight: 700;
}

.task-done {
  text-decoration: line-through;
  color: var(--muted);
}

.timeline {
  display: grid;
  gap: 12px;
}

.timeline-item {
  border-left: 4px solid var(--teal);
  background: var(--surface-soft);
  border-radius: 8px;
  padding: 12px;
}

.timeline-item h4,
.timeline-item p {
  margin: 0;
}

.timeline-item p {
  margin-top: 6px;
  color: var(--muted);
}

.checklist {
  display: grid;
  gap: 10px;
}

.check-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px;
  align-items: start;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.metric-grid {
  display: grid;
  gap: 12px;
}

.toast {
  position: fixed;
  right: 20px;
  bottom: 20px;
  background: #101827;
  color: white;
  border-radius: 8px;
  padding: 12px 14px;
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 160ms ease, transform 160ms ease;
}

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

@media (max-width: 980px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

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

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

  .sidebar-footer {
    grid-template-columns: 1fr 1fr;
  }

  .signal-grid,
  .layout-two,
  .layout-two.wide-left {
    grid-template-columns: 1fr;
  }

  .sticky-panel {
    position: static;
  }
}

@media (max-width: 620px) {
  .main,
  .sidebar {
    padding: 16px;
  }

  .topbar,
  .panel-heading {
    align-items: stretch;
    flex-direction: column;
  }

  .top-actions,
  .form-actions {
    justify-content: stretch;
  }

  .top-actions > *,
  .form-actions > * {
    flex: 1;
  }

  .nav-list {
    grid-template-columns: 1fr 1fr;
  }

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

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

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