:root {
  color-scheme: dark;
  --font-sans: "IBM Plex Sans", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", monospace;
  --bg: #0b1017;
  --bg-elevated: #111926;
  --bg-canvas: #0f1723;
  --surface: #121b27;
  --surface-soft: #152130;
  --surface-muted: #182436;
  --surface-strong: #0f1824;
  --surface-accent: #14253a;
  --surface-float: rgba(18, 28, 41, 0.9);
  --border: rgba(148, 163, 184, 0.12);
  --border-strong: rgba(148, 163, 184, 0.2);
  --text: #edf3fb;
  --text-strong: #ffffff;
  --muted: #97a6ba;
  --muted-strong: #b7c3d4;
  --accent: #66b3ff;
  --accent-strong: #3192ff;
  --accent-soft: rgba(102, 179, 255, 0.14);
  --success: #4fd1a5;
  --warning: #f5b546;
  --danger: #ff8a8a;
  --shadow-lg: 0 24px 60px rgba(2, 6, 23, 0.26);
  --shadow-md: 0 14px 30px rgba(2, 6, 23, 0.18);
  --radius-xl: 22px;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 10px;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-7: 1.75rem;
  --space-8: 2rem;
}

* {
  box-sizing: border-box;
}

html {
  font-family: var(--font-sans);
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(54, 102, 163, 0.14), transparent 28%),
    radial-gradient(circle at right 20%, rgba(31, 65, 110, 0.18), transparent 24%),
    linear-gradient(180deg, #0a0f16 0%, #0b1017 100%);
  color: var(--text);
}

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

button,
input,
select,
textarea {
  outline: none;
}

button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 0.58rem 0.9rem;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, #2376d9 0%, #1f66bc 100%);
  color: var(--text-strong);
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition:
    background 140ms ease,
    border-color 140ms ease,
    transform 140ms ease,
    box-shadow 140ms ease,
    opacity 140ms ease;
}

button:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 24px rgba(18, 96, 188, 0.24);
}

button.secondary,
button.ghost,
button.warn {
  background: var(--surface-soft);
  border-color: var(--border);
  box-shadow: none;
}

button.secondary {
  color: var(--text);
}

button.ghost {
  background: transparent;
  color: var(--muted-strong);
}

button.warn {
  color: var(--warning);
  border-color: rgba(245, 181, 70, 0.28);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.hidden {
  display: none !important;
}

.app-shell {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-3);
  border-right: 1px solid rgba(148, 163, 184, 0.08);
  background:
    linear-gradient(180deg, rgba(16, 23, 35, 0.96) 0%, rgba(11, 17, 27, 0.98) 100%);
}

.brand,
.status-card,
.card,
.panel,
.thread-body,
.message-card,
.stat,
.list-row {
  border: 0;
  background: linear-gradient(180deg, rgba(19, 28, 40, 0.98) 0%, rgba(15, 22, 34, 0.98) 100%);
  box-shadow: none;
}

.brand {
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(24, 35, 51, 0.96) 0%, rgba(16, 25, 38, 0.98) 100%);
  border: 1px solid rgba(148, 163, 184, 0.08);
}

.brand h1 {
  margin: 0;
  font-size: 1.72rem;
  line-height: 1.02;
  letter-spacing: -0.04em;
  color: var(--text-strong);
}

.brand .muted {
  margin-top: var(--space-4);
}

.sidebar-label {
  margin: 0;
  padding: 0 var(--space-2);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.status-card {
  margin-top: auto;
  padding: var(--space-3);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(148, 163, 184, 0.08);
}

.status-card h2 {
  margin: 0 0 var(--space-3);
  font-size: 1rem;
}

.status-card ul {
  margin: 0;
  padding-left: 1.05rem;
  color: var(--muted);
  display: grid;
  gap: 0.55rem;
}

.nav {
  display: grid;
  gap: 0.35rem;
}

.nav button {
  justify-content: flex-start;
  min-height: 38px;
  padding: 0.62rem 0.75rem;
  border-radius: 10px;
  background: transparent;
  color: var(--muted-strong);
  border-color: transparent;
  font-weight: 500;
  box-shadow: none;
}

.nav button:hover {
  background: rgba(255, 255, 255, 0.03);
  border-color: rgba(148, 163, 184, 0.08);
}

.nav button.active {
  background: linear-gradient(180deg, rgba(21, 45, 69, 0.95) 0%, rgba(18, 38, 58, 0.98) 100%);
  border-color: rgba(102, 179, 255, 0.16);
  color: var(--text-strong);
  box-shadow: inset 2px 0 0 var(--accent), 0 8px 20px rgba(5, 10, 19, 0.18);
}

.main {
  min-width: 0;
  padding: var(--space-3) var(--space-5) var(--space-5);
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid rgba(148, 163, 184, 0.08);
}

.topbar-title h2 {
  margin: 0;
  font-size: 1.72rem;
  line-height: 1.04;
  letter-spacing: -0.04em;
}

.topbar-actions {
  display: flex;
  gap: var(--space-2);
  align-items: center;
  padding: 0.3rem;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(148, 163, 184, 0.08);
}

.eyebrow {
  margin: 0 0 var(--space-2);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.68rem;
  color: var(--muted);
}

h1,
h2,
h3,
h4,
p {
  margin-top: 0;
}

h3 {
  margin-bottom: 0.35rem;
  font-size: 1.04rem;
  letter-spacing: -0.025em;
}

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

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  min-height: 30px;
  padding: 0.28rem 0.62rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.1);
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted-strong);
  white-space: nowrap;
}

.pill strong {
  color: var(--text);
}

.alerts {
  display: grid;
  gap: 0.5rem;
  margin-bottom: var(--space-4);
}

.alert {
  padding: 0.68rem 0.9rem 0.68rem 1rem;
  border-radius: var(--radius-md);
  border: 0;
  border-left: 2px solid rgba(79, 209, 165, 0.5);
  background: rgba(19, 31, 44, 0.86);
  color: var(--muted-strong);
}

.alert.error {
  border-left-color: rgba(255, 138, 138, 0.65);
  color: #ffb7b7;
}

.alert.success {
  border-left-color: rgba(79, 209, 165, 0.65);
  color: #9ce7cc;
}

.view {
  display: block;
}

.auth-grid,
.dashboard-grid,
.team-grid,
.settings-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}

.card,
.panel,
.thread-body {
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(18, 27, 40, 0.98) 0%, rgba(14, 21, 33, 0.98) 100%);
  border: 1px solid rgba(148, 163, 184, 0.08);
  box-shadow: var(--shadow-md);
}

.card,
.panel {
  min-width: 0;
}

.card h3,
.panel h3 {
  margin-bottom: var(--space-2);
}

.card > * + form.stack,
.card > * + .stack,
.panel > * + form.stack,
.panel > * + .stack,
.panel > * + .settings-grid,
.panel > * + .policy-list,
.panel > * + .snippet-list,
.panel > * + .rules-list,
.panel > * + .mailbox-list,
.panel > * + .status-grid {
  margin-top: var(--space-4);
}

.stack {
  display: grid;
  gap: var(--space-3);
}

.field {
  display: grid;
  gap: 0.42rem;
}

.field > span {
  font-size: 0.76rem;
  color: var(--muted);
}

.field input,
.field textarea,
.field select {
  width: 100%;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(148, 163, 184, 0.12);
  padding: 0.68rem 0.8rem;
  background: rgba(9, 15, 23, 0.68);
  color: var(--text);
}

.field input:focus,
.field textarea:focus,
.field select:focus {
  border-color: rgba(102, 179, 255, 0.48);
  box-shadow: 0 0 0 3px rgba(102, 179, 255, 0.12);
}

.field textarea {
  min-height: 120px;
  resize: vertical;
}

.inline-actions {
  display: flex;
  gap: 0.7rem;
  flex-wrap: wrap;
}

.top-status-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr);
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.workspace-toolbar .panel {
  background: linear-gradient(180deg, rgba(18, 27, 39, 0.9) 0%, rgba(14, 21, 33, 0.92) 100%);
}

.workspace-toolbar .panel-header {
  margin-bottom: var(--space-2);
}

.command-panel {
  display: grid;
  gap: var(--space-2);
}

.command-row {
  display: flex;
  gap: var(--space-2);
  align-items: flex-end;
  flex-wrap: wrap;
}

.command-row .field {
  flex: 1 1 280px;
}

.meta-pills {
  display: flex;
  gap: var(--space-2);
  align-items: center;
  flex-wrap: wrap;
}

.status-grid {
  display: grid;
  gap: var(--space-2);
}

.status-item {
  padding: 0.68rem 0.82rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(148, 163, 184, 0.08);
  background: rgba(255, 255, 255, 0.025);
}

.status-item strong {
  display: block;
  margin-bottom: 0.12rem;
  font-size: 0.86rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-3);
}

.stat {
  border-radius: var(--radius-lg);
  padding: var(--space-3);
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid rgba(148, 163, 184, 0.08);
}

.stat strong {
  display: block;
  font-size: 1.4rem;
  margin-bottom: 0.18rem;
  color: var(--text-strong);
  letter-spacing: -0.04em;
}

.overview-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(360px, 0.8fr);
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.overview-hero-main {
  display: grid;
  gap: var(--space-3);
}

.overview-hero-main h3 {
  font-size: 1.56rem;
  letter-spacing: -0.04em;
  line-height: 1.08;
}

.overview-hero-side {
  display: flex;
  align-items: stretch;
}

.section-split,
.learning-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 0.9fr);
  gap: var(--space-4);
}

.section-panel {
  display: grid;
  gap: var(--space-3);
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-3);
}

.feature-list {
  display: grid;
  gap: var(--space-2);
}

.feature-item {
  padding: 0.62rem 0;
  border-top: 1px solid rgba(148, 163, 184, 0.08);
}

.feature-item:first-child {
  border-top: 0;
  padding-top: 0;
}

.feature-item strong {
  display: block;
  margin-bottom: 0.28rem;
  color: var(--text-strong);
}

.workspace-grid {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 0;
  align-items: start;
}

.workspace-frame {
  border-radius: 20px;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(16, 24, 35, 0.98) 0%, rgba(12, 19, 29, 0.98) 100%);
  border: 1px solid rgba(148, 163, 184, 0.08);
  box-shadow: var(--shadow-md);
}

.inbox-layout {
  display: contents;
}

.workspace-sidebar,
.workspace-main,
.thread-body {
  min-width: 0;
}

.workspace-sidebar .panel,
.workspace-main .panel {
  min-width: 0;
}

.queue-surface,
.thread-surface {
  min-width: 0;
  height: 100%;
}

.queue-surface {
  padding: var(--space-3);
  background: rgba(255, 255, 255, 0.02);
  border-right: 1px solid rgba(148, 163, 184, 0.08);
}

.panel-header,
.thread-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.section-caption {
  font-size: 0.82rem;
  color: var(--muted);
}

.message-list,
.rules-list,
.mailbox-list,
.snippet-list,
.policy-list {
  display: grid;
  gap: 0.6rem;
}

.message-list {
  max-height: calc(100vh - 220px);
  overflow: auto;
  padding-right: 0.15rem;
}

.message-card {
  padding: 0.78rem 0.85rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(148, 163, 184, 0.08);
}

.message-card:hover {
  border-color: rgba(102, 179, 255, 0.18);
  background: linear-gradient(180deg, rgba(24, 35, 50, 0.98) 0%, rgba(17, 26, 38, 0.98) 100%);
}

.message-card.active {
  border-color: rgba(102, 179, 255, 0.16);
  background: linear-gradient(180deg, rgba(20, 38, 58, 0.98) 0%, rgba(17, 31, 48, 0.98) 100%);
  box-shadow: inset 2px 0 0 var(--accent);
}

.message-card strong {
  display: block;
  margin-bottom: 0.3rem;
  color: var(--text-strong);
  font-size: 0.96rem;
}

.message-meta {
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
  color: var(--muted);
  font-size: 0.74rem;
  margin-bottom: 0.35rem;
}

.message-preview {
  margin-bottom: 0.45rem;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.34;
}

.thread-body {
  display: grid;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-4);
  background: linear-gradient(180deg, rgba(16, 25, 36, 0.98) 0%, rgba(12, 19, 29, 0.98) 100%);
  box-shadow: none;
  border: 0;
}

.thread-header {
  padding-bottom: var(--space-3);
  border-bottom: 1px solid rgba(148, 163, 184, 0.08);
}

.thread-summary h3 {
  margin-bottom: 0.28rem;
  font-size: 1.08rem;
}

.thread-meta {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 0.76rem;
}

.thread-transcript {
  display: grid;
  gap: var(--space-2);
  max-height: 300px;
  overflow: auto;
  padding-right: 0.2rem;
}

.bubble {
  max-width: 88%;
  padding: 0.75rem 0.85rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(148, 163, 184, 0.08);
  background: rgba(255, 255, 255, 0.035);
}

.bubble strong {
  display: block;
  margin-bottom: 0.22rem;
  font-size: 0.76rem;
}

.bubble p {
  margin: 0;
  color: var(--muted-strong);
  line-height: 1.48;
  white-space: pre-wrap;
  font-size: 0.92rem;
}

.bubble.agent {
  margin-left: auto;
  background: rgba(102, 179, 255, 0.08);
  border-color: rgba(102, 179, 255, 0.18);
}

.composer-grid {
  display: grid;
  grid-template-columns: minmax(360px, 0.92fr) minmax(420px, 1.08fr);
  gap: var(--space-3);
}

.composer-shell {
  padding-top: 0.75rem;
  border-top: 1px solid rgba(148, 163, 184, 0.08);
}

.draft-panel {
  min-height: 520px;
}

.draft-surface,
.review-surface {
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr);
  gap: var(--space-3);
  padding: var(--space-3);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid rgba(148, 163, 184, 0.08);
}

.panel-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: 0;
}

.action-cluster {
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.compact-meta-row {
  display: flex;
  gap: var(--space-2);
  align-items: center;
  flex-wrap: wrap;
  min-height: 24px;
  padding: 0.05rem 0;
  color: var(--muted);
  font-size: 0.76rem;
}

.compact-meta-label {
  color: var(--muted-strong);
  font-weight: 600;
}

.list-row {
  padding: 0.72rem 0.82rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid rgba(148, 163, 184, 0.08);
}

.list-row strong {
  display: block;
  margin-bottom: 0.12rem;
  color: var(--text-strong);
  font-size: 0.94rem;
}

.list-row button {
  margin-top: var(--space-3);
}

.surface-note {
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  border: 1px dashed rgba(148, 163, 184, 0.22);
  background: rgba(255, 255, 255, 0.02);
  color: var(--muted);
}

.code {
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.draft-field {
  min-height: 0;
}

.draft-field > span {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.draft-field textarea {
  min-height: 290px;
  height: 100%;
  font-size: 0.95rem;
  line-height: 1.55;
}

.compact-status-panel .status-item {
  min-height: 0;
}

.app-sections .panel,
.side-panel,
.section-span-full {
  min-width: 0;
}

.section-span-full {
  grid-column: 1 / -1;
}

@media (max-width: 1280px) {
  .overview-hero,
  .section-split,
  .learning-layout,
  .top-status-grid,
  .workspace-grid,
  .composer-grid {
    grid-template-columns: 1fr;
  }

  .workspace-frame {
    overflow: visible;
  }

  .queue-surface {
    border-right: 0;
    border-bottom: 1px solid rgba(148, 163, 184, 0.08);
  }

  .message-list {
    max-height: none;
  }
}

@media (max-width: 1120px) {
  .app-shell,
  .auth-grid,
  .dashboard-grid,
  .team-grid,
  .settings-grid,
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .sidebar {
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }
}

@media (max-width: 720px) {
  .main,
  .sidebar {
    padding: var(--space-4);
  }

  .topbar {
    flex-direction: column;
  }

  .topbar-actions,
  .command-row,
  .panel-header,
  .thread-header,
  .panel-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .brand h1,
  .topbar-title h2 {
    font-size: 1.45rem;
  }
}