:root {
  --bg: #07111e;
  --bg-elevated: rgba(14, 27, 46, 0.88);
  --bg-card: rgba(17, 29, 48, 0.92);
  --bg-card-strong: rgba(20, 35, 58, 0.98);
  --bg-border: rgba(118, 156, 214, 0.14);
  --bg-hover: rgba(84, 122, 190, 0.16);
  --text: #f5f7fb;
  --text-soft: #a8b7cf;
  --text-muted: #7e90ac;
  --primary: #4f88ff;
  --primary-soft: rgba(79, 136, 255, 0.12);
  --success: #69d26d;
  --warning: #ffc85f;
  --critical: #ff7b5a;
  --info: #7db6ff;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --sidebar-width: 264px;
  --topbar-height: 84px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Space Grotesk", "Avenir Next", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(79, 136, 255, 0.18), transparent 32%),
    radial-gradient(circle at bottom left, rgba(54, 151, 116, 0.16), transparent 28%),
    linear-gradient(180deg, #07111e 0%, #081424 45%, #06111d 100%);
}

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

button {
  border: 0;
  background: none;
  color: inherit;
  cursor: pointer;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid rgba(117, 144, 181, 0.16);
  border-radius: 14px;
  background: rgba(7, 17, 30, 0.72);
  color: var(--text);
  padding: 0.85rem 1rem;
  outline: none;
}

input:focus,
select:focus,
textarea:focus,
button:focus-visible {
  border-color: rgba(79, 136, 255, 0.68);
  box-shadow: 0 0 0 3px rgba(79, 136, 255, 0.16);
  outline: none;
}

#app {
  min-height: 100vh;
}

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

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding: 1.5rem 1.2rem;
  background: linear-gradient(180deg, rgba(6, 16, 32, 0.98) 0%, rgba(4, 12, 24, 0.96) 100%);
  border-right: 1px solid var(--bg-border);
  z-index: 30;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.brand-lockup strong {
  display: block;
  font-size: 1.65rem;
  letter-spacing: 0.04em;
}

.brand-lockup span {
  color: var(--text-soft);
  font-size: 0.92rem;
}

.brand-lockup.horizontal strong {
  font-size: 1.45rem;
}

.sidebar-nav,
.twin-nav {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.nav-button {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.95rem 1rem;
  border-radius: 16px;
  color: var(--text-soft);
  transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}

.nav-button:hover,
.nav-button.is-active {
  background: linear-gradient(180deg, rgba(55, 98, 181, 0.28), rgba(49, 85, 154, 0.32));
  color: var(--text);
  transform: translateX(2px);
}

.nav-button.inline {
  width: auto;
  padding-inline: 0.75rem;
  border-radius: 14px;
}

.icon {
  width: 20px;
  height: 20px;
  flex: 0 0 20px;
}

.sidebar-project {
  margin-top: auto;
}

.sidebar-project h4 {
  margin: 0 0 0.85rem;
  font-size: 0.95rem;
  color: var(--text-soft);
}

.project-summary-card,
.active-project-card {
  display: grid;
  gap: 0.85rem;
  padding: 1rem;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(17, 31, 53, 0.95), rgba(11, 22, 37, 0.94));
  border: 1px solid var(--bg-border);
  box-shadow: var(--shadow);
}

.project-summary-card p,
.active-project-card p,
.muted {
  color: var(--text-muted);
}

.progress-ring {
  --progress: 0;
  width: 124px;
  aspect-ratio: 1;
  margin: 1rem auto 0.85rem;
  padding: 12px;
  border-radius: 50%;
  background:
    radial-gradient(circle at center, rgba(10, 20, 34, 0.95) 58%, transparent 59%),
    conic-gradient(var(--primary) calc(var(--progress) * 1%), var(--success) calc(var(--progress) * 1%) calc(var(--progress) * 1% + 22%), rgba(255, 255, 255, 0.08) 0);
}

.progress-ring-center {
  display: grid;
  place-items: center;
  height: 100%;
  border-radius: 50%;
  background: rgba(7, 17, 30, 0.92);
  text-align: center;
}

.progress-ring-center strong {
  font-size: 2rem;
}

.progress-ring-center span {
  color: var(--success);
  font-size: 0.85rem;
}

.project-mini-stats {
  display: grid;
  gap: 0.25rem;
}

.project-mini-stats span {
  color: var(--text-soft);
  font-size: 0.82rem;
}

.app-main {
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.topbar,
.twin-topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: var(--topbar-height);
  padding: 1.25rem 1.6rem;
  border-bottom: 1px solid var(--bg-border);
  backdrop-filter: blur(22px);
  background: rgba(6, 15, 27, 0.76);
}

.topbar-start,
.topbar-end {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.page-shell,
.twin-shell-main {
  padding: 1.5rem;
}

.page,
.twin-page {
  display: grid;
  gap: 1.2rem;
}

.page-heading,
.twin-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.page-heading h1,
.twin-heading h1 {
  margin: 0.2rem 0 0.35rem;
  font-size: clamp(2rem, 3vw, 2.7rem);
}

.page-heading p,
.twin-heading p {
  margin: 0;
  color: var(--text-soft);
}

.heading-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.eyebrow {
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 44px;
  padding: 0 1rem;
  border-radius: 14px;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.button:hover,
.chip:hover,
.tool-button:hover,
.icon-button:hover,
.text-link:hover {
  transform: translateY(-1px);
}

.mobile-nav-toggle {
  display: none;
}

.button-primary {
  background: linear-gradient(180deg, #4f88ff, #376ce0);
  color: white;
}

.button-secondary {
  background: rgba(79, 136, 255, 0.12);
  color: var(--text);
  border: 1px solid rgba(79, 136, 255, 0.18);
}

.button-ghost {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-soft);
}

.text-link {
  color: #7db6ff;
  padding: 0;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  font-size: 0.82rem;
  border: 1px solid transparent;
}

.badge-success {
  background: rgba(105, 210, 109, 0.16);
  border-color: rgba(105, 210, 109, 0.2);
  color: #8be58f;
}

.badge-warning {
  background: rgba(255, 200, 95, 0.14);
  border-color: rgba(255, 200, 95, 0.2);
  color: #ffd984;
}

.badge-critical {
  background: rgba(255, 123, 90, 0.14);
  border-color: rgba(255, 123, 90, 0.2);
  color: #ff9b80;
}

.badge-info {
  background: rgba(125, 182, 255, 0.14);
  border-color: rgba(125, 182, 255, 0.2);
  color: #8fc4ff;
}

.icon-button {
  position: relative;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
}

.notification-count {
  position: absolute;
  top: 6px;
  right: 6px;
  min-width: 18px;
  height: 18px;
  padding: 0 4px;
  display: inline-grid;
  place-items: center;
  border-radius: 999px;
  background: var(--critical);
  color: white;
  font-size: 0.7rem;
  font-weight: 700;
}

.user-button {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.45rem 0.6rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
}

.user-button.compact {
  padding-inline: 0.4rem;
}

.user-avatar,
.avatar {
  width: 40px;
  height: 40px;
  display: inline-grid;
  place-items: center;
  border-radius: 50%;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.04));
  font-weight: 700;
}

.project-select {
  display: grid;
  gap: 0.35rem;
  min-width: 240px;
}

.project-select select {
  background: rgba(13, 25, 42, 0.88);
}

.card,
.notification-tray,
.drawer-shell,
.modal-shell {
  background: linear-gradient(180deg, var(--bg-card) 0%, rgba(11, 20, 34, 0.96) 100%);
  border: 1px solid var(--bg-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.card {
  padding: 1.2rem;
}

.panel-card {
  min-height: 0;
}

.section-header,
.panel-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.section-header h3,
.panel-header h3,
.compact-card h4 {
  margin: 0;
}

.section-header p,
.panel-header p,
.compact-card p,
.panel-copy,
.small-note {
  margin: 0.35rem 0 0;
  color: var(--text-soft);
}

.panel-header.compact,
.section-header.compact {
  margin-bottom: 0.75rem;
}

.dashboard-metrics,
.card-grid,
.dashboard-lower-grid,
.analytics-grid,
.two-column-grid,
.assistant-layout,
.benchmark-grid {
  display: grid;
  gap: 1rem;
}

.dashboard-metrics {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.metric-card {
  padding: 1.25rem;
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(18, 32, 53, 0.96), rgba(12, 22, 37, 0.96));
  border: 1px solid var(--bg-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  text-align: left;
}

.metric-card strong {
  display: block;
  margin-top: 0.5rem;
  font-size: 2.2rem;
}

.metric-subtitle {
  display: inline-block;
  margin-top: 0.4rem;
  font-size: 0.92rem;
}

.metric-success {
  color: #8be58f;
}

.metric-warning {
  color: #ffd984;
}

.metric-info {
  color: #8fc4ff;
}

.sparkline {
  width: 104px;
  height: 52px;
}

.project-tabs,
.tabs {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.project-tab,
.tab,
.chip {
  min-height: 40px;
  padding: 0 0.95rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-soft);
}

.project-tab.is-active,
.tab.is-active,
.chip.is-active {
  background: var(--primary-soft);
  color: var(--text);
  box-shadow: inset 0 0 0 1px rgba(79, 136, 255, 0.25);
}

.inline-banner {
  padding: 0.9rem 1rem;
  border-radius: 18px;
  background: rgba(255, 200, 95, 0.08);
  border: 1px solid rgba(255, 200, 95, 0.18);
  color: #ffe39e;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(320px, 0.92fr);
  gap: 1rem;
}

.dashboard-main,
.dashboard-side {
  display: grid;
  gap: 1rem;
}

.twin-preview-card {
  overflow: hidden;
}

.twin-preview-stage,
.viewport-stage {
  position: relative;
  min-height: 470px;
  padding: 1.2rem;
  border-radius: 22px;
  overflow: hidden;
  border: 1px solid rgba(125, 182, 255, 0.12);
  background-size: cover;
  background-position: center;
}

.stage-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.twin-preview-stage::after,
.viewport-stage::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(4, 10, 19, 0.2), rgba(4, 10, 19, 0.62));
}

.twin-preview-stage > *,
.viewport-stage > * {
  position: relative;
  z-index: 1;
}

.preview-levels,
.preview-rail {
  position: absolute;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.preview-levels {
  top: 1.4rem;
  left: 1.4rem;
}

.preview-rail {
  top: 1.4rem;
  right: 1.4rem;
}

.level-pill,
.preview-rail-button {
  padding: 0.8rem 0.85rem;
  border-radius: 14px;
  min-width: 56px;
  background: rgba(13, 25, 42, 0.76);
  backdrop-filter: blur(18px);
}

.level-pill.is-active {
  background: rgba(79, 136, 255, 0.65);
}

.twin-preview-overlay {
  position: absolute;
  left: 50%;
  bottom: 1.2rem;
  transform: translateX(-50%);
  display: grid;
  gap: 0.6rem;
}

.floating-chip {
  padding: 0.7rem 1rem;
  border-radius: 999px;
  background: rgba(79, 136, 255, 0.18);
  backdrop-filter: blur(18px);
}

.floating-chip.secondary {
  background: rgba(8, 19, 33, 0.74);
}

.phase-track {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.phase-step {
  position: relative;
  padding-top: 0.35rem;
}

.phase-step::before {
  content: "";
  position: absolute;
  top: 0;
  left: 1rem;
  right: -1rem;
  height: 4px;
  background: rgba(255, 255, 255, 0.08);
}

.phase-step:last-child::before {
  right: 1rem;
}

.phase-step.phase-complete::before,
.phase-step.phase-active::before,
.phase-step.phase-current::before {
  background: linear-gradient(90deg, #69d26d, #4f88ff);
}

.phase-index {
  width: 34px;
  height: 34px;
  display: inline-grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  margin-bottom: 0.7rem;
}

.phase-step strong {
  display: block;
}

.phase-step small {
  color: var(--text-soft);
}

.dashboard-lower-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.donut-layout {
  display: grid;
  grid-template-columns: 142px minmax(0, 1fr);
  gap: 1rem;
  align-items: center;
}

.donut {
  width: 142px;
  aspect-ratio: 1;
  padding: 14px;
  border-radius: 50%;
}

.donut-center {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: rgba(8, 17, 30, 0.92);
  color: var(--text-soft);
}

.donut-center span {
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--text);
}

.donut-legend,
.info-list,
.team-summary,
.system-legend,
.stacked-cards,
.simulation-strip {
  display: grid;
  gap: 0.75rem;
}

.legend-row,
.team-row,
.settings-row,
.system-row,
.list-item,
.alert-item,
.notification-item,
.gantt-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.9rem;
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--legend-color);
}

.line-chart svg {
  width: 100%;
  height: 180px;
}

.chart-grid line {
  stroke: rgba(255, 255, 255, 0.08);
}

.chart-series-dashed {
  stroke-dasharray: 8 7;
}

.chart-axis,
.chart-legend {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  color: var(--text-muted);
  font-size: 0.82rem;
}

.chart-legend {
  margin-top: 0.9rem;
  justify-content: flex-start;
  flex-wrap: wrap;
}

.list-stack {
  display: grid;
  gap: 0.85rem;
}

.list-item,
.alert-item,
.notification-item,
.team-row,
.thread-card,
.connector-card,
.project-card,
.benchmark-card,
.risk-card,
.thumbnail-card,
.insight-card,
.simulation-card {
  border-radius: 18px;
  padding: 0.95rem 1rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.interactive-card:hover,
.alert-item:hover,
.notification-item:hover,
.connector-card:hover,
.project-card:hover,
.risk-card:hover,
.thumbnail-card:hover,
.insight-card:hover {
  background: rgba(79, 136, 255, 0.09);
  border-color: rgba(79, 136, 255, 0.18);
}

.list-copy {
  flex: 1;
  min-width: 0;
}

.list-copy p,
.thread-card span,
.connector-card p,
.project-card p,
.benchmark-card p,
.insight-card p,
.simulation-card p {
  margin: 0.25rem 0 0;
  color: var(--text-soft);
}

.connector-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: 0.95rem;
}

.alert-icon,
.chip-icon {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.06);
}

.tone-success {
  color: #8be58f;
}

.tone-warning {
  color: #ffd984;
}

.tone-critical {
  color: #ff9b80;
}

.tone-info {
  color: #8fc4ff;
}

.assistant-card,
.assistant-intro,
.assistant-inline-form,
.assistant-compose {
  display: grid;
  gap: 0.9rem;
}

.assistant-intro {
  grid-template-columns: auto 1fr;
  align-items: center;
}

.chip-row {
  display: flex;
  gap: 0.55rem;
  flex-wrap: wrap;
}

.assistant-inline-form {
  grid-template-columns: minmax(0, 1fr) auto;
}

.bar-chart {
  display: flex;
  align-items: flex-end;
  gap: 0.65rem;
  min-height: 190px;
  padding-top: 1rem;
}

.bar {
  flex: 1;
  border-radius: 16px 16px 6px 6px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.22), transparent 18%), var(--bar-color);
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.18);
  min-width: 18px;
}

.stat-grid,
.project-grid {
  display: grid;
  gap: 1rem;
}

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

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

.stat-card {
  padding: 1.15rem;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.stat-card strong {
  display: block;
  margin-top: 0.5rem;
  font-size: 2rem;
}

.stat-card p {
  margin: 0.4rem 0 0;
  color: var(--text-soft);
}

.filter-toolbar {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

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

.filter-group {
  display: grid;
  gap: 0.4rem;
}

.filter-group.wide {
  grid-column: span 2;
}

.toggle-group {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.project-card {
  display: grid;
  gap: 1rem;
}

.project-card-top,
.project-card-actions,
.project-card-metrics {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.85rem;
  flex-wrap: wrap;
}

.project-card-metrics span {
  color: var(--text-soft);
}

.project-card h3,
.connector-card strong,
.thread-card strong,
.benchmark-card strong,
.risk-card strong,
.thumbnail-card span {
  margin: 0;
}

.risk-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.85rem;
}

.table-wrap {
  overflow: auto;
}

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

.data-table th,
.data-table td {
  text-align: left;
  padding: 0.9rem 0.75rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  vertical-align: top;
}

.data-table th {
  color: var(--text-muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.table-actions {
  display: flex;
  gap: 0.65rem;
}

.schema-preview {
  display: flex;
  gap: 0.55rem;
  flex-wrap: wrap;
}

.schema-chip {
  padding: 0.45rem 0.65rem;
  border-radius: 999px;
  background: rgba(79, 136, 255, 0.12);
  color: #a6c6ff;
}

.stacked-note {
  display: grid;
  gap: 0.65rem;
  margin-top: 1rem;
}

.assistant-layout {
  grid-template-columns: minmax(250px, 0.85fr) minmax(0, 1.6fr) minmax(250px, 0.9fr);
}

.thread-rail {
  display: grid;
  gap: 0.75rem;
}

.thread-card {
  text-align: left;
}

.thread-card.is-active {
  background: rgba(79, 136, 255, 0.16);
}

.chat-stack {
  display: grid;
  gap: 1rem;
  max-height: 58vh;
  overflow: auto;
  padding-right: 0.35rem;
}

.chat-card {
  padding: 1rem;
  border-radius: 18px;
}

.chat-card.assistant {
  background: rgba(255, 255, 255, 0.04);
}

.chat-card.assistant header {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.9rem;
  align-items: flex-start;
}

.chat-card.user {
  margin-left: auto;
  width: min(78%, 560px);
  background: rgba(79, 136, 255, 0.16);
}

.chat-card p {
  margin: 0.3rem 0 0;
  color: var(--text-soft);
}

.plain-list {
  margin: 1rem 0 0;
  padding-left: 1.15rem;
  display: grid;
  gap: 0.55rem;
  color: var(--text-soft);
}

.compose-actions {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

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

.card-grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.benchmark-card strong {
  display: block;
  margin-top: 0.45rem;
  font-size: 2rem;
}

.gantt-board {
  display: grid;
  gap: 0.9rem;
}

.gantt-row {
  padding: 0.9rem 0.95rem;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.gantt-bar-track {
  flex: 1;
  min-width: 160px;
  height: 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  overflow: hidden;
}

.gantt-bar {
  display: block;
  height: 100%;
  border-radius: inherit;
}

.status-delayed {
  background: linear-gradient(90deg, #ff7b5a, #ffb26a);
}

.status-on-track {
  background: linear-gradient(90deg, #4f88ff, #69d26d);
}

.status-queued {
  background: linear-gradient(90deg, #5e6c84, #8795aa);
}

.settings-card {
  display: grid;
  gap: 1rem;
}

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

.settings-column {
  display: grid;
  gap: 0.9rem;
}

.settings-row {
  padding: 0.95rem 1rem;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.03);
}

.settings-row input[type="checkbox"] {
  width: 18px;
  height: 18px;
}

.twin-app-shell {
  min-height: 100vh;
  background: linear-gradient(180deg, rgba(8, 15, 27, 0.98), rgba(7, 14, 24, 1));
}

.twin-topbar {
  padding-inline: 1.3rem;
}

.twin-nav {
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: center;
}

.twin-tabs {
  padding-bottom: 0.35rem;
}

.twin-shell {
  display: grid;
  grid-template-columns: minmax(250px, 280px) minmax(0, 1fr) minmax(260px, 320px);
  gap: 1rem;
}

.twin-left-panel,
.twin-right-panel,
.twin-center-panel {
  min-width: 0;
  display: grid;
  gap: 1rem;
}

.twin-left-panel,
.twin-right-panel {
  align-content: start;
}

.twin-system-toolbar {
  padding-block: 0.9rem;
}

.tree-list {
  list-style: none;
  margin: 0;
  padding-left: 0;
  display: grid;
  gap: 0.4rem;
}

.tree-list .tree-list {
  margin-left: 1rem;
}

.tree-node {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.6rem 0.8rem;
  border-radius: 12px;
  color: var(--text-soft);
  text-align: left;
}

.tree-node.is-active,
.tree-node:hover {
  background: rgba(79, 136, 255, 0.16);
  color: var(--text);
}

.info-list {
  gap: 0.65rem;
}

.info-list div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  color: var(--text-soft);
}

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

.compact-card {
  padding: 1rem;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.twin-viewport {
  display: grid;
  gap: 1rem;
}

.viewport-badge-row {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex-wrap: wrap;
}

.viewport-toolbar {
  position: absolute;
  top: 1.4rem;
  right: 1.4rem;
  display: grid;
  gap: 0.55rem;
}

.tool-button {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: rgba(10, 18, 31, 0.78);
  backdrop-filter: blur(14px);
}

.tool-button.is-active {
  background: rgba(79, 136, 255, 0.48);
}

.hotspot-layer {
  position: absolute;
  inset: 0;
}

.hotspot {
  position: absolute;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: rgba(10, 18, 31, 0.68);
  transform: translate(-50%, -50%);
}

.hotspot.structure {
  background: rgba(105, 210, 109, 0.22);
}

.hotspot.architecture {
  background: rgba(79, 136, 255, 0.24);
}

.hotspot.mechanical {
  background: rgba(65, 198, 244, 0.22);
}

.hotspot.electrical {
  background: rgba(255, 198, 87, 0.24);
}

.hotspot.plumbing {
  background: rgba(142, 100, 255, 0.24);
}

.viewport-bottom-toolbar {
  position: absolute;
  left: 50%;
  bottom: 1.2rem;
  transform: translateX(-50%);
  display: flex;
  gap: 0.55rem;
  padding: 0.45rem;
  border-radius: 18px;
  background: rgba(8, 19, 33, 0.8);
  backdrop-filter: blur(16px);
}

.twin-info-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 1rem 1.1rem;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.03);
}

.thumbnail-rail {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
  gap: 0.85rem;
}

.thumbnail-card {
  text-align: left;
}

.thumbnail-card.is-active {
  border-color: rgba(79, 136, 255, 0.42);
  background: rgba(79, 136, 255, 0.1);
}

.thumbnail-preview {
  height: 82px;
  border-radius: 14px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.08), transparent),
    radial-gradient(circle at top left, rgba(79, 136, 255, 0.2), transparent 50%),
    rgba(8, 18, 31, 0.86);
  margin-bottom: 0.75rem;
}

.level-selector-panel {
  padding: 1rem;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.03);
}

.level-selector-list {
  display: grid;
  gap: 0.35rem;
}

.level-selector-row {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0.65rem;
  border-radius: 12px;
  color: var(--text-soft);
}

.level-selector-row.is-active,
.level-selector-row:hover,
.system-row.is-active,
.system-row:hover {
  background: rgba(79, 136, 255, 0.16);
  color: var(--text);
}

.twin-alt-layout {
  display: grid;
  gap: 1rem;
}

.drawing-board {
  padding: 1rem;
  border-radius: 18px;
  background: rgba(6, 17, 30, 0.72);
}

.drawing-sheet {
  position: relative;
  min-height: 460px;
  border-radius: 22px;
  overflow: hidden;
  background: #0f1d31;
  border: 1px solid rgba(125, 182, 255, 0.16);
}

.drawing-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(125, 182, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(125, 182, 255, 0.08) 1px, transparent 1px);
  background-size: 28px 28px;
}

.drawing-stamp {
  position: absolute;
  right: 1.2rem;
  bottom: 1.2rem;
  padding: 0.7rem 0.85rem;
  border-radius: 12px;
  background: rgba(79, 136, 255, 0.14);
}

.simulation-strip {
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}

.simulation-card {
  display: grid;
  gap: 0.5rem;
}

.twin-collapse-handle {
  align-self: start;
  padding: 0.85rem 1rem;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-soft);
}

.drawer-shell,
.notification-tray {
  position: fixed;
  top: 96px;
  right: 1.2rem;
  width: min(380px, calc(100vw - 2rem));
  padding: 1rem;
  z-index: 60;
  max-height: calc(100vh - 112px);
  overflow: auto;
}

.drawer-shell {
  top: 88px;
}

.drawer-body {
  display: grid;
  gap: 1rem;
}

.overlay-backdrop {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  place-items: center;
  background: rgba(2, 8, 15, 0.7);
  backdrop-filter: blur(8px);
}

.modal-shell {
  width: min(560px, calc(100vw - 2rem));
  padding: 1.2rem;
}

.modal-form,
.settings-form {
  display: grid;
  gap: 1rem;
}

.modal-form label,
.settings-row {
  display: grid;
  gap: 0.45rem;
}

.form-footer {
  display: flex;
  justify-content: flex-end;
}

.toast {
  position: fixed;
  right: 1.2rem;
  bottom: 1.2rem;
  z-index: 90;
  padding: 0.95rem 1.1rem;
  border-radius: 16px;
  color: white;
  box-shadow: var(--shadow);
}

.toast-success {
  background: linear-gradient(180deg, #22995d, #167848);
}

.toast-warning {
  background: linear-gradient(180deg, #c78a21, #9c6a12);
}

.toast-info {
  background: linear-gradient(180deg, #366de1, #244fa5);
}

.notification-tray .list-stack,
.drawer-body .compact-card,
.thread-rail,
.chat-stack {
  margin-top: 0.5rem;
}

.notification-item.is-unread {
  background: rgba(79, 136, 255, 0.12);
}

.empty-state {
  min-height: 220px;
  display: grid;
  place-items: center;
  text-align: center;
  gap: 0.6rem;
  padding: 2rem 1rem;
  color: var(--text-soft);
}

.empty-icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: rgba(79, 136, 255, 0.12);
}

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

.skeleton-card {
  min-height: 180px;
  overflow: hidden;
  position: relative;
}

.skeleton-card.wide {
  grid-column: span 2;
  min-height: 360px;
}

.skeleton-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.06), transparent);
  transform: translateX(-100%);
  animation: shimmer 1.6s infinite;
}

@keyframes shimmer {
  100% {
    transform: translateX(100%);
  }
}

@media (max-width: 1260px) {
  .dashboard-metrics,
  .dashboard-lower-grid,
  .benchmark-grid,
  .card-grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .dashboard-grid,
  .assistant-layout,
  .twin-shell,
  .analytics-grid,
  .two-column-grid {
    grid-template-columns: 1fr;
  }

  .project-grid,
  .card-grid-3 {
    grid-template-columns: 1fr;
  }

  .twin-left-panel,
  .twin-right-panel {
    order: 2;
  }

  .twin-center-panel {
    order: 1;
  }
}

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

  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: min(86vw, 320px);
    transform: translateX(-102%);
    transition: transform 220ms ease;
  }

  .sidebar.is-open {
    transform: translateX(0);
  }

  .sidebar-backdrop {
    position: fixed;
    inset: 0;
    z-index: 25;
    background: rgba(3, 8, 15, 0.68);
  }

  .mobile-nav-toggle {
    display: inline-grid;
  }

  .topbar,
  .twin-topbar {
    padding: 1rem;
  }

  .page-shell,
  .twin-shell-main {
    padding: 1rem;
  }

  .dashboard-metrics,
  .stat-grid,
  .filter-toolbar,
  .filter-toolbar.compact,
  .settings-grid,
  .page-grid {
    grid-template-columns: 1fr;
  }

  .filter-group.wide,
  .skeleton-card.wide {
    grid-column: span 1;
  }

  .topbar-end {
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .project-select {
    min-width: 180px;
  }

  .donut-layout {
    grid-template-columns: 1fr;
    justify-items: center;
  }

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

@media (max-width: 680px) {
  :root {
    --topbar-height: 74px;
  }

  .topbar,
  .twin-topbar,
  .page-heading,
  .twin-heading,
  .panel-header,
  .section-header,
  .compose-actions,
  .twin-info-strip,
  .gantt-row,
  .project-card-top,
  .project-card-actions,
  .project-card-metrics {
    flex-direction: column;
    align-items: stretch;
  }

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

  .twin-preview-stage,
  .viewport-stage,
  .drawing-sheet {
    min-height: 360px;
  }

  .preview-rail,
  .viewport-toolbar {
    right: 0.85rem;
  }

  .preview-levels,
  .viewport-badge-row {
    left: 0.85rem;
  }

  .thumbnail-rail {
    grid-template-columns: 1fr;
  }

  .notification-tray,
  .drawer-shell {
    top: 82px;
    right: 0.75rem;
    left: 0.75rem;
    width: auto;
  }

  .modal-shell {
    width: calc(100vw - 1rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}