:root {
    --font-ui: "Segoe UI", system-ui, sans-serif;
    --bg-app: #f3f2f1;
    --bg-shell: #ffffff;
    --bg-sidebar: #faf9f8;
    --bg-subtle: #f8f8f8;
    --bg-hover: #edebe9;
    --line: #edebe9;
    --line-strong: #d2d0ce;
    --text: #201f1e;
    --muted: #605e5c;
    --muted-2: #8a8886;
    --brand: #0f6cbd;
    --brand-strong: #115ea3;
    --brand-soft: #deecf9;
    --success-bg: #dff6dd;
    --success-text: #0b6a0b;
    --error-bg: #fde7e9;
    --error-text: #a80000;
    --shadow-card: 0 1.6px 3.6px rgba(0, 0, 0, 0.08), 0 0.3px 0.9px rgba(0, 0, 0, 0.06);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
}

html, body {
    margin: 0;
    min-height: 100%;
    font-family: var(--font-ui);
    background: var(--bg-app);
    color: var(--text);
    font-size: 14px;
    line-height: 1.4;
}

body {
    min-height: 100vh;
}

#app,
#app > div {
    min-height: 100vh;
}

a {
    color: inherit;
    text-decoration: none;
}

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

.app-icon {
    display: inline-flex;
    width: 16px;
    height: 16px;
    flex: 0 0 auto;
}

.app-icon svg {
    width: 100%;
    height: 100%;
}

.app-icon img {
    width: 100%;
    height: 100%;
    display: block;
}

.shell {
    display: grid;
    grid-template-columns: 211px minmax(0, 1fr);
    height: 100vh;
    min-height: 100vh;
    overflow: hidden;
    transition: grid-template-columns 220ms ease;
}

.shell-collapsed {
    grid-template-columns: 61px minmax(0, 1fr);
}

.rail {
    background: var(--bg-sidebar);
    border-right: 1px solid var(--line);
    padding: 20px 12px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    height: 100vh;
    min-height: 100vh;
    overflow: visible;
    position: sticky;
    top: 0;
    z-index: 30;
}

.rail-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 10px;
    min-width: 0;
}

.brand-logo {
    width: 36px;
    height: 36px;
    object-fit: contain;
    display: block;
}

.brand-shell {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 4px 10px 10px;
}

.brand-shell-main {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
}

.brand-logo-large {
    width: 28px;
    height: 28px;
}

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

.brand-copy strong {
    font-size: 0.92rem;
    font-weight: 600;
}

.brand-copy span,
.rail-section-title {
    color: var(--muted);
    font-size: 0.75rem;
}

.rail-nav,
.rail-section {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.rail-nav {
    min-height: 0;
}

.rail-scroll {
    min-height: 0;
    overflow: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding-right: 2px;
}

.rail-footer {
    margin-top: auto;
    position: relative;
    display: grid;
    gap: 8px;
    padding-top: 8px;
    background: var(--bg-sidebar);
    z-index: 4;
    overflow: visible;
}

.rail-profile-trigger {
    width: 100%;
    border: 1px solid var(--line);
    background: #fff;
    border-radius: var(--radius-md);
    padding: 8px 10px;
    display: flex;
    align-items: center;
    gap: 10px;
    text-align: left;
}

.rail-profile-menu {
    display: grid;
    gap: 2px;
    padding: 6px;
    border: 1px solid var(--line);
    background: #fff;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    position: absolute;
    left: 0;
    right: 0;
    bottom: calc(100% + 8px);
    z-index: 20;
}

.rail-profile-action {
    border: 0;
    background: transparent;
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--muted);
    text-align: left;
}

.rail-profile-action:hover {
    background: var(--bg-hover);
}

.rail-divider {
    height: 1px;
    margin: 6px 0;
    background: var(--line);
}

.rail-divider.compact {
    width: 32px;
    margin: 2px auto;
}

.rail-lab-icons {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
}

.rail-collapsed-shortcuts {
    display: grid;
    gap: 8px;
    justify-items: center;
}

.rail-subsection {
    display: grid;
    gap: 8px;
}

.rail-link,
.rail-subtle-link {
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.rail-link {
    color: var(--muted);
    font-size: 0.9rem;
    font-weight: 500;
    position: relative;
}

.rail-link:hover,
.rail-subtle-link:hover {
    background: var(--bg-hover);
}

.rail-link.active {
    background: var(--brand-soft);
    color: var(--brand-strong);
    font-weight: 600;
}

.rail-link.active::before {
    content: "";
    position: absolute;
    left: 0;
    top: 8px;
    bottom: 8px;
    width: 3px;
    border-radius: 999px;
    background: var(--brand);
}

.rail-subtle-link {
    color: var(--muted);
    font-size: 0.85rem;
}

.rail-subtle-link.active {
    background: var(--brand-soft);
    color: var(--brand-strong);
    font-weight: 600;
}

.rail-lab-icon-link {
    width: 100%;
    min-height: 42px;
    padding: 8px 10px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 10px;
    border-radius: var(--radius-sm);
    background: #fff;
    border: 1px solid var(--line);
    color: var(--muted);
    box-sizing: border-box;
}

.rail-lab-icon-link:hover,
.rail-lab-icon-link.active {
    background: var(--brand-soft);
    color: var(--brand-strong);
    border-color: rgba(0, 120, 212, 0.28);
}

.rail-lab-caption {
    font-size: 0.78rem;
    line-height: 1.2;
}

.rail-toggle {
    width: 36px;
    height: 36px;
    padding: 0;
    flex: 0 0 auto;
}

.shell-collapsed .brand {
    justify-content: center;
    padding: 0;
}

.shell-collapsed .brand-shell {
    padding: 0;
    justify-content: center;
}

.shell-collapsed .brand-logo-large {
    width: 24px;
    height: 24px;
}

.shell-collapsed .rail-link,
.shell-collapsed .rail-subtle-link {
    justify-content: center;
    width: 44px;
    height: 44px;
    margin: 0 auto;
    padding: 0;
    border-radius: 12px;
}

.shell-collapsed .rail-label,
.shell-collapsed .brand-copy,
.shell-collapsed .rail-section-title {
    display: none;
}

.shell-collapsed .rail-section {
    display: grid;
    gap: 8px;
}

.shell-collapsed .rail {
    padding: 10px 8px 12px;
    gap: 10px;
}

.shell-collapsed .rail-top {
    display: block;
    min-height: 0;
}

.shell-collapsed .rail-nav {
    gap: 8px;
}

.shell-collapsed .rail-footer {
    justify-items: center;
    gap: 10px;
}

.shell-collapsed .rail-profile-trigger {
    width: 44px;
    height: 44px;
    padding: 0;
    justify-content: center;
}

.shell-collapsed .rail-profile-menu {
    width: 188px;
    padding: 6px;
    left: calc(100% + 8px);
    right: auto;
    bottom: 0;
    transform: none;
    z-index: 50;
}

.shell-collapsed .rail-profile-action {
    justify-content: flex-start;
    padding: 10px 12px;
}

.shell-collapsed .rail-profile-action span {
    display: inline;
}

.shell-collapsed .rail-link.active::before {
    left: 50%;
    top: auto;
    bottom: -5px;
    width: 16px;
    height: 3px;
    transform: translateX(-50%);
}

.shell-collapsed .brand-shell {
    padding-top: 2px;
    padding-bottom: 4px;
    justify-content: center;
    align-items: center;
    gap: 6px;
}

.shell-collapsed .brand-shell-main {
    justify-content: center;
    width: 100%;
}

.shell-collapsed .rail-collapsed-shortcuts {
    gap: 8px;
}

.shell-collapsed .rail-collapsed-link {
    justify-content: center;
    width: 44px;
    height: 44px;
    margin: 0 auto;
    padding: 0;
    border-radius: 12px;
    background: transparent;
    border: 0;
}

.shell-collapsed .rail-collapsed-link:hover {
    background: var(--bg-hover);
}

.shell-collapsed .rail-collapsed-link.active {
    background: var(--brand-soft);
    color: var(--brand-strong);
    font-weight: 600;
}

.shell-collapsed .rail-collapsed-link.active::before {
    left: 50%;
    top: auto;
    bottom: -5px;
    width: 16px;
    height: 3px;
    transform: translateX(-50%);
}

.rail-toggle-collapsed-top {
    width: 28px;
    height: 28px;
    margin: -2px auto 4px;
}

.workspace {
    min-width: 0;
    display: flex;
    flex-direction: column;
    min-height: 0;
    height: 100vh;
    overflow: auto;
}

.global-bar {
    height: 48px;
    background: var(--bg-shell);
    border-bottom: 1px solid var(--line);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 0 20px;
}

.global-bar-left,
.global-bar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.page-context {
    display: grid;
    gap: 2px;
    min-width: 170px;
}

.page-context-eyebrow {
    color: var(--muted);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

.page-context strong {
    font-size: 0.94rem;
    font-weight: 600;
}

.global-search {
    width: min(520px, 48vw);
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 12px;
    height: 32px;
    background: var(--bg-subtle);
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
}

.global-search input {
    border: 0;
    background: transparent;
    width: 100%;
    outline: none;
}

.global-search-icon {
    color: var(--muted-2);
}

.chrome-button {
    width: 32px;
    height: 32px;
    border: 1px solid var(--line);
    background: var(--bg-shell);
    border-radius: 50%;
    color: var(--muted);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.profile-chip {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 4px 8px;
    border-radius: var(--radius-md);
}

.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.28);
    display: grid;
    place-items: center;
    z-index: 1000;
}

.password-modal {
    width: min(560px, calc(100vw - 32px));
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    box-shadow: 0 18px 50px rgba(15, 23, 42, 0.18);
    display: grid;
    gap: 14px;
    padding: 18px 18px 16px;
}

.password-modal-head {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: start;
    gap: 12px;
}

.password-modal-head strong {
    text-align: center;
    font-size: 1.15rem;
    font-weight: 700;
    color: #111827;
    grid-column: 1 / -1;
}

.password-modal-copy {
    margin: 0;
    color: #4b5563;
    font-size: 0.9rem;
    line-height: 1.35;
}

.password-modal-panel {
    border: 1px solid var(--line-strong);
    background: #fff;
    padding: 18px 20px;
}

.password-modal-body {
    display: grid;
    gap: 16px;
}

.password-modal-body .field-stack > span {
    color: #4b5563;
    font-size: 0.9rem;
}

.password-guidance {
    display: grid;
    gap: 2px;
}

.password-guidance strong {
    font-size: 0.98rem;
    font-weight: 400;
    color: #111827;
}

.password-guidance span {
    color: #4b5563;
    font-size: 0.86rem;
    line-height: 1.35;
}

.password-modal-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 12px;
}

.password-submit {
    min-width: 168px;
}

.profile-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #dbeafe;
    color: var(--brand-strong);
    display: grid;
    place-items: center;
    font-size: 0.78rem;
    font-weight: 700;
}

.profile-copy strong,
.profile-copy span {
    display: block;
}

.profile-copy strong {
    font-size: 0.84rem;
    font-weight: 600;
}

.profile-copy span {
    font-size: 0.75rem;
    color: var(--muted);
}

.ghost,
.solid,
.auth-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    padding: 7px 12px;
    font-size: 0.8125rem;
    cursor: pointer;
}

.ghost {
    background: white;
    border-color: var(--line-strong);
    color: var(--text);
}

.ghost:hover {
    background: var(--bg-subtle);
}

.ghost.small {
    padding: 6px 10px;
}

.icon-button {
    gap: 8px;
}

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

.rail-link.active .nav-icon,
.rail-subtle-link:hover .nav-icon,
.rail-link:hover .nav-icon {
    color: currentColor;
}

.solid,
.auth-submit {
    background: var(--brand);
    color: white;
}

.solid:hover,
.auth-submit:hover {
    background: var(--brand-strong);
}

.page-loading,
.auth-guard {
    min-height: calc(100vh - 56px);
    display: grid;
    place-items: center;
    padding: 24px;
}

.boot-splash {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
    background:
        radial-gradient(circle at top left, rgba(18, 117, 188, 0.12), transparent 34%),
        radial-gradient(circle at top right, rgba(31, 176, 135, 0.1), transparent 26%),
        linear-gradient(180deg, #f7fbff 0%, #f3f5f8 58%, #eef2f6 100%);
}

.boot-splash-card,
.loader-card {
    width: min(100%, 470px);
    border-radius: 22px;
    padding: 28px 28px 24px;
    border: 1px solid var(--line);
    background: var(--bg-shell);
    box-shadow: var(--shadow-card);
    display: grid;
    gap: 16px;
}

.loader-card-head {
    display: grid;
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 14px;
    align-items: center;
}

.loader-brand-badge {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: linear-gradient(180deg, #f7f9fc 0%, #eef2f7 100%);
    display: grid;
    place-items: center;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.loader-brand-icon {
    width: 28px;
    height: 28px;
    object-fit: contain;
    display: block;
}

.loader-copy {
    display: grid;
    gap: 2px;
}

.loader-copy strong {
    font-size: 1.05rem;
    font-weight: 700;
    color: #1f2937;
}

.loader-copy span {
    font-size: 0.8rem;
    color: var(--muted);
}

.loading-progress-bar {
    width: 100%;
    height: 4px;
    border-radius: 999px;
    background: #e7edf5;
    overflow: hidden;
}

.loading-progress-bar-value {
    display: block;
    width: 54%;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, #4aa0e6 0%, #0f6cbd 100%);
    animation: loading-progress-slide 1.6s ease-in-out infinite alternate;
}

.loader-status-copy {
    display: grid;
    gap: 6px;
}

.loader-status-copy strong {
    font-size: 0.98rem;
    font-weight: 700;
    color: #1f2937;
}

.loader-status-copy span {
    font-size: 0.82rem;
    color: var(--muted);
}

.loading-card {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-height: 40px;
    padding: 0 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: #fff;
    box-shadow: var(--shadow-card);
    color: var(--muted);
}

.login-scene {
    position: relative;
    overflow: hidden;
    min-height: 100vh;
    background:
        radial-gradient(circle at top left, rgba(18, 117, 188, 0.12), transparent 34%),
        radial-gradient(circle at top right, rgba(31, 176, 135, 0.1), transparent 26%),
        linear-gradient(180deg, #f7fbff 0%, #f3f5f8 58%, #eef2f6 100%);
}

.login-backdrop-shape {
    position: absolute;
    border-radius: 999px;
    filter: blur(2px);
    pointer-events: none;
}

.login-backdrop-shape-blue {
    width: 320px;
    height: 320px;
    left: -92px;
    top: -84px;
    background: radial-gradient(circle, rgba(18, 117, 188, 0.18) 0%, rgba(18, 117, 188, 0.06) 58%, transparent 74%);
}

.login-backdrop-shape-green {
    width: 280px;
    height: 280px;
    right: -48px;
    top: 42px;
    background: radial-gradient(circle, rgba(31, 176, 135, 0.14) 0%, rgba(31, 176, 135, 0.04) 60%, transparent 76%);
}

.auth-card,
.panel {
    background: var(--bg-shell);
    box-shadow: var(--shadow-card);
}

.auth-card {
    width: min(100%, 460px);
    border-radius: 20px;
    padding: 28px 28px 22px;
    border: 1px solid rgba(15, 108, 189, 0.12);
}

.login-brand {
    display: grid;
    gap: 12px;
    margin-bottom: 18px;
}

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

.login-brand-logo {
    width: 56px;
    height: auto;
    display: block;
    flex: 0 0 auto;
}

.login-brand-wordmark {
    font-size: 1.05rem;
    font-weight: 400;
    color: #0f6cbd;
}

.login-copy {
    display: grid;
    gap: 4px;
}

.login-copy h1,
.login-brand-wordmark,
.eyebrow {
    user-select: none;
    -webkit-user-select: none;
}

.login-submit {
    width: 100%;
    min-height: 38px;
    margin-top: 8px;
    background: #1275bc;
}

.login-submit:hover {
    background: #0f63a0;
}

.login-footer {
    display: grid;
    gap: 6px;
    margin-top: 18px;
    padding-top: 14px;
    border-top: 1px solid rgba(96, 94, 92, 0.12);
}

.login-demo {
    font-size: 0.8rem;
    color: #605e5c;
}

.login-caption {
    font-size: 0.75rem;
    color: #6b7280;
}

.auth-copy,
.hero-copy,
.panel-header span,
.field-group label,
.eyebrow {
    color: var(--muted);
}

.dashboard,
.module-page {
    padding: 18px 22px 24px;
}

.page-head {
    margin-bottom: 12px;
}

.eyebrow {
    margin: 0 0 4px;
    font-size: 0.74rem;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    font-weight: 600;
}

h1,
h2,
p {
    margin: 0;
}

h1 {
    font-size: 1.5rem;
    font-weight: 600;
}

h2 {
    font-size: 0.9375rem;
    font-weight: 600;
}

.hero-copy {
    margin-top: 8px;
    max-width: 720px;
    line-height: 1.45;
    font-size: 0.86rem;
}

.command-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 0 14px;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.dashboard-grid.single-column {
    grid-template-columns: minmax(0, 1fr);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px 16px;
}

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

.checkbox-group {
    align-content: start;
}

.checkbox-row {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 38px;
    color: var(--text);
}

.field-checkbox {
    width: 16px;
    height: 16px;
    accent-color: var(--brand);
    margin: 0;
}

.panel-section {
    margin-top: 16px;
}

.panel {
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    padding: 18px;
}

.panel-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 16px;
}

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

.summary-strip {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin: 0 0 16px;
}

.summary-card {
    border: 1px solid var(--line);
    background: #fff;
    border-radius: var(--radius-sm);
    padding: 14px 16px;
    display: grid;
    gap: 4px;
    box-shadow: var(--shadow-card);
}

.summary-card strong {
    font-size: 1.15rem;
    font-weight: 700;
}

.summary-card span {
    color: var(--muted);
    font-size: 0.78rem;
}

.inline-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin: 6px 0 12px;
}

.icon-actions {
    margin: 0;
    flex-wrap: nowrap;
}

.icon-only-action {
    width: 30px;
    height: 30px;
    padding: 0;
    justify-content: center;
    position: relative;
}

.icon-only-action[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    left: 50%;
    bottom: calc(100% + 8px);
    transform: translateX(-50%) translateY(4px);
    padding: 6px 8px;
    border-radius: 6px;
    background: rgba(32, 31, 30, 0.94);
    color: #fff;
    font-size: 0.72rem;
    line-height: 1;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 120ms ease, transform 120ms ease;
    z-index: 20;
}

.icon-only-action[data-tooltip]::before {
    content: "";
    position: absolute;
    left: 50%;
    bottom: calc(100% + 3px);
    transform: translateX(-50%) translateY(4px);
    border: 5px solid transparent;
    border-top-color: rgba(32, 31, 30, 0.94);
    opacity: 0;
    pointer-events: none;
    transition: opacity 120ms ease, transform 120ms ease;
    z-index: 20;
}

.icon-only-action[data-tooltip]:hover::after,
.icon-only-action[data-tooltip]:hover::before,
.icon-only-action[data-tooltip]:focus-visible::after,
.icon-only-action[data-tooltip]:focus-visible::before {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.participant-zebra-block {
    display: grid;
    gap: 0;
    padding: 12px 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: #fff;
}

.placeholder-list > .participant-zebra-block:nth-child(even) {
    background: #faf9f8;
}

.placeholder-list > .participant-zebra-block:nth-child(odd) {
    background: #fff;
}

.placeholder-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
}

.child-row {
    margin-top: 4px;
    margin-left: 18px;
    padding-left: 12px;
    border-left: 2px solid var(--line);
}

.metric-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 4px 0 12px;
}

.metric-strip-compact {
    margin: 0 0 10px;
}

.metric-strip-below-console {
    margin-top: 10px;
    margin-bottom: 0;
}

.metric-strip-inline {
    margin: 0;
}

.participant-zebra-block .metric-strip {
    margin: 8px 0 10px;
}

.participant-zebra-block .inline-actions {
    margin: 0;
    padding-top: 8px;
}

.metric-strip-indent {
    margin-left: 18px;
}

.metric-chip {
    display: inline-flex;
    align-items: center;
    min-height: 26px;
    padding: 0 10px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--bg-shell);
    color: var(--muted);
    font-size: 0.76rem;
}

.status-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 26px;
    padding: 0 10px;
    border-radius: 999px;
    font-size: 0.76rem;
    font-weight: 600;
    border: 1px solid transparent;
}

.status-chip-running {
    background: var(--success-bg);
    color: var(--success-text);
    border-color: rgba(11, 106, 11, 0.12);
}

.status-chip-stopped {
    background: var(--error-bg);
    color: var(--error-text);
    border-color: rgba(168, 0, 0, 0.12);
}

.status-chip-empty {
    background: var(--bg-hover);
    color: var(--muted);
    border-color: var(--line);
}

.course-workspace {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 16px;
}

.course-selector-panel {
    align-self: start;
}

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

.course-selector-item {
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: #fff;
    color: var(--text);
    padding: 12px 14px;
    display: grid;
    gap: 8px;
}

.course-selector-item:hover {
    background: var(--bg-hover);
}

.course-selector-item.selected {
    border-color: var(--brand);
    background: var(--brand-soft);
}

.course-selector-item span {
    color: var(--muted);
    font-size: 0.8rem;
}

.course-selector-main {
    display: grid;
    gap: 4px;
    padding: 0;
    text-align: left;
    background: transparent;
    border: 0;
    color: inherit;
}

.course-selector-action {
    justify-self: start;
}

.placeholder-row span {
    color: var(--muted);
    font-size: 0.8rem;
}

.row-primary,
.row-meta {
    display: grid;
    gap: 4px;
}

.vm-title-with-icon,
.vm-subtitle-with-icon {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
}

.vm-title-with-icon .app-icon,
.vm-subtitle-with-icon .app-icon {
    width: 18px;
    height: 18px;
    flex: 0 0 auto;
}

.vm-title-with-icon span,
.vm-subtitle-with-icon span {
    min-width: 0;
}

.row-primary {
    min-width: 0;
}

.row-meta {
    text-align: right;
    flex: 0 0 auto;
}

.field-group {
    display: grid;
    gap: 6px;
    margin-bottom: 14px;
}

.field {
    height: 38px;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-sm);
    padding: 0 12px;
    background: #fff;
    color: var(--text);
}

.field:focus {
    outline: 1px solid var(--brand);
    border-color: var(--brand);
}

.field-area {
    min-height: 92px;
    padding: 10px 12px;
    resize: vertical;
}

.error-text {
    color: var(--error-text);
    background: var(--error-bg);
    border: 1px solid rgba(168, 0, 0, 0.1);
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    margin-bottom: 12px;
}

.dismissable-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.banner-dismiss {
    border: 0;
    background: transparent;
    color: inherit;
    font-size: 1.1rem;
    line-height: 1;
    cursor: pointer;
    padding: 0;
    opacity: 0.7;
}

.banner-dismiss:hover {
    opacity: 1;
}

.success-banner {
    color: var(--success-text);
    background: var(--success-bg);
    border: 1px solid rgba(11, 106, 11, 0.12);
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    margin-bottom: 12px;
}

.instructor-lab-shell {
    display: block;
    min-height: calc(100vh - 184px);
}

.lab-sidebar-section {
    display: grid;
    gap: 10px;
    min-height: 0;
}

.lab-sidebar-group-title {
    display: grid;
    gap: 4px;
    justify-items: center;
    text-align: center;
}

.lab-sidebar-group-title strong {
    font-size: 0.84rem;
    line-height: 1.3;
}

.lab-sidebar-separator {
    height: 1px;
    background: var(--line);
    margin: 2px 0;
}

.lab-sidebar-mode {
    display: grid;
    justify-items: center;
    gap: 8px;
    padding: 10px 8px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: #fff;
    color: var(--text);
    text-align: center;
    font-size: 0.76rem;
    line-height: 1.3;
}

.lab-sidebar-mode svg {
    color: var(--brand);
}

.lab-sidebar-mode.selected {
    background: var(--brand-soft);
    border-color: rgba(0, 120, 212, 0.35);
}

.lab-section-title-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.lab-section-title {
    font-size: 0.84rem;
    font-weight: 700;
    color: var(--text);
}

.lab-section-meta {
    font-size: 0.76rem;
    color: var(--muted);
}

.lab-vm-icon-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
}

.lab-vm-icon {
    display: grid;
    gap: 8px;
    justify-items: center;
    padding: 10px 8px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: #fff;
    color: var(--text);
    text-align: center;
}

.lab-vm-icon:hover,
.lab-student-vm-tile:hover {
    background: var(--bg-hover);
    border-color: var(--line-strong);
}

.lab-vm-icon.selected,
.lab-student-vm-tile.selected {
    background: var(--brand-soft);
    border-color: rgba(0, 120, 212, 0.35);
}

.lab-vm-icon-glyph,
.lab-student-vm-top svg {
    color: var(--brand);
}

.lab-vm-icon-label {
    font-size: 0.72rem;
    line-height: 1.3;
    overflow-wrap: anywhere;
}

.lab-student-groups {
    display: grid;
    gap: 12px;
    overflow: auto;
    padding-right: 4px;
}

.lab-student-group {
    display: grid;
    gap: 10px;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: #fff;
}

.lab-student-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 10px;
}

.lab-student-head strong {
    font-size: 0.86rem;
}

.lab-student-head.compact {
    align-items: flex-start;
}

.lab-student-head span {
    font-size: 0.76rem;
    color: var(--muted);
}

.lab-student-vm-grid {
    display: grid;
    gap: 8px;
}

.lab-student-vm-tile {
    display: grid;
    gap: 6px;
    padding: 10px 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: var(--bg-shell);
    color: var(--text);
    text-align: left;
}

.lab-student-vm-top {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
}

.lab-vm-chip-row {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
    width: 100%;
    margin-left: auto;
    justify-content: flex-end;
}

.lab-student-vm-tile strong {
    font-size: 0.82rem;
}

.instructor-lab-main {
    display: grid;
    grid-template-rows: minmax(0, 1fr);
    min-width: 0;
    min-height: 100vh;
    height: 100%;
}

.lab-dropzone {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 52px;
    border: 1px dashed rgba(0, 120, 212, 0.35);
    border-radius: var(--radius-sm);
    background: linear-gradient(180deg, rgba(0, 120, 212, 0.05) 0%, rgba(0, 120, 212, 0.02) 100%);
    color: var(--muted);
    font-size: 0.84rem;
    overflow: hidden;
    cursor: pointer;
}

.vm-dropzone {
    min-height: 42px;
    font-size: 0.78rem;
}

.toolbar-dropzone {
    min-width: 200px;
    min-height: 34px;
    padding: 0 10px;
    gap: 8px;
}

.lab-dropzone svg {
    color: var(--brand);
}

.lab-file-input {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

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

.lab-center-stage {
    display: grid;
    grid-template-rows: minmax(0, 1fr);
    gap: 12px;
    min-height: 560px;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: #fff;
    overflow: hidden;
}

.lab-center-stage.maximized {
    height: calc(100vh - 48px);
    min-height: calc(100vh - 48px);
}

.lab-selected-vm-stage {
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
    gap: 12px;
    min-height: 0;
    height: 100%;
}

.lab-selected-vm-stage.maximized {
    height: 100%;
    min-height: 100%;
}

.lab-student-grid-view,
.lab-student-groups-main {
    display: grid;
    gap: 14px;
    min-height: 0;
}

.lab-student-flat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 12px;
    justify-content: stretch;
    align-content: start;
    overflow: auto;
    overflow-anchor: none;
    padding-right: 4px;
    width: 100%;
}

.lab-student-flat-grid > .lab-student-vm-tile:nth-child(odd) {
    background: #ffffff;
}

.lab-student-flat-grid > .lab-student-vm-tile:nth-child(even) {
    background: #faf9f8;
}

.lab-student-groups-main {
    overflow: auto;
    overflow-anchor: none;
    padding-right: 4px;
}

.lab-student-group-main {
    display: grid;
    gap: 12px;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: var(--bg-shell);
}

.lab-student-vm-tile,
.lab-student-group-main,
.lab-console-embed,
.lab-console-frame.embedded {
    overflow-anchor: none;
}

.lab-student-groups-main > .lab-student-group-main:nth-child(odd) {
    background: #ffffff;
}

.lab-student-groups-main > .lab-student-group-main:nth-child(even) {
    background: #faf9f8;
}

.lab-student-vm-grid-main {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 12px;
    justify-content: stretch;
    width: 100%;
}

.lab-student-vm-tile.large {
    display: grid;
    gap: 8px;
    padding: 14px;
    background: #fff;
}

.lab-student-vm-tile.large.empty {
    align-content: start;
}

.lab-console-embed {
    min-height: 240px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: #111;
    position: relative;
    transform: translateZ(0);
    will-change: transform;
    isolation: isolate;
}

.empty-inline-state {
    display: flex;
    align-items: center;
}

.console-placeholder {
    justify-content: center;
    min-height: 240px;
    color: #c8c6c4;
    background: #111;
}

.vm-offline-placeholder {
    flex-direction: column;
    justify-content: center;
    gap: 10px;
    text-align: center;
    padding: 20px;
}

.vm-offline-placeholder strong {
    color: #f3f2f1;
    font-size: 1rem;
}

.vm-offline-placeholder span {
    color: #c8c6c4;
    font-size: 0.82rem;
}

.selected-offline-placeholder {
    min-height: 420px;
}

.lab-selected-console-area {
    min-height: 0;
    height: 100%;
    display: grid;
    transform: translateZ(0);
    will-change: transform;
    isolation: isolate;
}

.lab-selected-vm-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
}

.lab-selected-vm-meta {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 8px;
}

.lab-selected-toolbar {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 12px;
}

.lab-selected-toolbar-left,
.lab-selected-toolbar-right {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.lab-selected-toolbar-left {
    min-width: 0;
}

.lab-selected-toolbar .toolbar-dropzone {
    justify-self: center;
    align-self: center;
}

.lab-selected-toolbar-right {
    margin-left: 0;
    justify-content: flex-end;
}

.compact-title {
    max-width: 220px;
}

.lab-student-card-toolbar {
    display: grid;
    grid-template-columns: 1fr auto auto;
    align-items: center;
    gap: 10px;
}

.lab-student-card-toolbar-right {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
    min-width: 0;
}

.compact-dropzone {
    min-width: 170px;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 999px;
    display: inline-block;
    flex: 0 0 auto;
}

.status-dot-running {
    background: #107c10;
    box-shadow: 0 0 0 3px rgba(16, 124, 16, 0.12);
}

.status-dot-stopped {
    background: #d13438;
    box-shadow: 0 0 0 3px rgba(209, 52, 56, 0.12);
}

.lab-console-frame {
    display: block;
    width: 100%;
    height: 100%;
    min-height: 100%;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: #111;
    transform: translateZ(0);
    backface-visibility: hidden;
    will-change: transform;
}

.lab-console-frame.embedded {
    min-height: 240px;
    border: 0;
    border-radius: 0;
}

.participant-lab-shell {
    display: grid;
    flex: 1 1 auto;
    min-height: 100dvh;
    height: 100dvh;
    min-width: 0;
    overflow: hidden;
}

.participant-lab-main {
    display: grid;
    flex: 1 1 auto;
    min-height: 100dvh;
    height: 100dvh;
    min-width: 0;
    grid-template-rows: auto minmax(0, 1fr);
    overflow: hidden;
}

.participant-lab-stage {
    min-height: 0;
    height: 100%;
    min-height: calc(100dvh - 8px);
    height: calc(100dvh - 8px);
    align-self: stretch;
    overflow: hidden;
    padding-bottom: 0;
    padding: 4px;
    gap: 4px;
    box-sizing: border-box;
}

.participant-instructor-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    justify-content: stretch;
    align-content: start;
    overflow: auto;
    padding-right: 4px;
}

.participant-instructor-tile {
    background: #fff;
}

.participant-instructor-tile .lab-console-embed {
    min-height: 336px;
}

.participant-my-machines-stage {
    display: grid;
    grid-template-rows: minmax(0, 1fr);
    gap: 0;
    min-height: 0;
    height: 100%;
    align-self: stretch;
}

.participant-my-machines-stage > .lab-selected-vm-stage {
    min-height: 0;
    height: 100%;
}

.participant-vm-selector-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.participant-vm-selector-strip.compact {
    margin-top: 0;
}

.participant-vm-selector-strip.in-head {
    justify-content: center;
    flex-wrap: nowrap;
}

.participant-vm-selector {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 34px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: #fff;
    color: var(--muted);
    padding: 0 10px;
}

.participant-vm-selector.icon-only {
    width: 34px;
    min-width: 34px;
    height: 34px;
    min-height: 34px;
    padding: 0;
    justify-content: center;
}

.participant-vm-selector.icon-only > span:not(.app-icon) {
    display: none;
}

.participant-vm-selector.icon-only .app-icon {
    width: 20px;
    height: 20px;
}

.participant-vm-selector.icon-only .app-icon img {
    object-fit: contain;
}

.participant-vm-selector.selected {
    background: var(--brand-soft);
    border-color: rgba(0, 120, 212, 0.3);
    color: var(--brand-strong);
}

.participant-toolbar-center {
    display: flex;
    align-items: center;
    justify-content: center;
    align-self: start;
}

.participant-toolbar-os-only {
    width: 36px;
    height: 36px;
}

.participant-toolbar-caption {
    color: var(--muted);
    font-size: 0.82rem;
    font-weight: 600;
}

.participant-split-layout {
    display: grid;
    min-height: 100%;
    height: 100%;
    min-height: calc(100dvh - 96px);
    align-self: stretch;
    gap: 0;
    align-items: stretch;
}

.participant-split-layout.participant-split-dragging .participant-pane-console,
.participant-split-layout.participant-split-dragging .lab-console-frame,
.participant-split-layout.participant-split-dragging iframe {
    pointer-events: none;
}

.participant-split-layout.vertical {
    grid-template-columns: minmax(0, 1fr) 18px minmax(0, 1fr);
}

.participant-split-layout.horizontal {
    grid-template-rows: minmax(0, 1fr) 18px minmax(0, 1fr);
}

.participant-split-layout-vertical {
    grid-template-columns: minmax(0, 1fr) 18px minmax(0, 1fr);
    min-height: calc(100dvh - 72px);
    height: 100%;
}

.participant-split-layout-horizontal {
    grid-template-rows: minmax(0, 1fr) 18px minmax(0, 1fr);
    height: 100%;
    min-height: calc(100dvh - 72px);
}

.participant-split-pane {
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
    gap: 10px;
    min-height: 0;
    height: 100%;
    min-height: calc(100dvh - 96px);
    align-self: stretch;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: #fff;
    overflow: hidden;
}

.participant-split-pane-vertical {
    min-height: 0;
    height: 100%;
}

.participant-split-pane-horizontal {
    min-height: 0;
    height: 100%;
}

.participant-pane-head {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: center;
    gap: 10px;
}

.participant-pane-head-self {
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
}

.participant-pane-copy {
    display: grid;
    gap: 2px;
}

.participant-pane-copy strong {
    font-size: 0.95rem;
    color: var(--text);
}

.participant-pane-copy span {
    color: var(--muted);
    font-size: 0.78rem;
}

.participant-pane-center {
    justify-self: center;
    min-width: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.participant-pane-status {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    justify-self: end;
    min-width: 0;
}

.participant-pane-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    justify-self: end;
}

.participant-pane-metrics {
    justify-content: flex-start;
}

.participant-pane-os-badge {
    width: 34px;
    height: 34px;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: var(--bg-subtle);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    justify-self: center;
    color: var(--brand-strong);
}

.participant-pane-os-badge .app-icon {
    width: 18px;
    height: 18px;
}

.participant-pane-console {
    min-height: 0;
    height: 100%;
    min-height: calc(100dvh - 160px);
    display: grid;
    align-self: stretch;
    overflow: hidden;
}

.participant-split-pane-horizontal .participant-pane-console {
    min-height: 0;
    height: 100%;
}

.participant-pane-console .lab-console-frame,
.participant-pane-console .lab-console-embed {
    min-height: 0;
    height: 100%;
}

.participant-pane-console > .empty-inline-state,
.participant-pane-console > .console-placeholder,
.participant-pane-console > .vm-offline-placeholder {
    display: flex;
    min-height: 0;
    height: 100%;
    width: 100%;
    align-self: stretch;
    align-items: center;
    justify-content: center;
}

.participant-splitter {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    touch-action: none;
    user-select: none;
}

.participant-splitter.vertical::before {
    content: "";
    width: 1px;
    height: 100%;
    background: var(--line);
}

.participant-splitter.horizontal::before {
    content: "";
    width: 100%;
    height: 1px;
    background: var(--line);
}

.participant-splitter.vertical {
    cursor: col-resize;
}

.participant-splitter.horizontal {
    cursor: row-resize;
    position: relative;
    justify-self: stretch;
}

.participant-splitter-handle {
    position: relative;
    z-index: 1;
    border-radius: 999px;
    border: 1px solid var(--line-strong);
    background: #fff;
    box-shadow: var(--shadow-card);
}

.participant-splitter-handle.vertical {
    width: 10px;
    height: 68px;
}

.participant-splitter-handle.horizontal {
    width: 68px;
    height: 10px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}

.participant-splitter-handle::before,
.participant-splitter-handle::after {
    content: "";
    position: absolute;
    border-radius: 999px;
    background: var(--muted-2);
}

.participant-splitter-handle.vertical::before,
.participant-splitter-handle.vertical::after {
    top: 14px;
    bottom: 14px;
    width: 1px;
}

.participant-splitter-handle.vertical::before {
    left: 3px;
}

.participant-splitter-handle.vertical::after {
    right: 3px;
}

.participant-splitter-handle.horizontal::before,
.participant-splitter-handle.horizontal::after {
    left: 14px;
    right: 14px;
    height: 1px;
}

.participant-splitter-handle.horizontal::before {
    top: 3px;
}

.participant-splitter-handle.horizontal::after {
    bottom: 3px;
}

.participant-splitter:hover .participant-splitter-handle,
.participant-splitter:active .participant-splitter-handle {
    border-color: rgba(15, 108, 189, 0.35);
    background: var(--brand-soft);
}

@media (max-width: 1080px) {
    .course-workspace {
        grid-template-columns: 1fr;
    }

    .lab-student-vm-grid-main {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

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

    .lab-selected-vm-head {
        flex-direction: column;
    }

    .lab-student-card-toolbar {
        grid-template-columns: 1fr;
        justify-items: stretch;
    }

    .lab-student-card-toolbar-right {
        justify-content: flex-end;
    }

    .participant-split-layout.vertical {
        grid-template-columns: 1fr;
        grid-template-rows: minmax(0, 1fr) 18px minmax(0, 1fr);
    }
}

@media (max-width: 720px) {
    .lab-student-vm-grid-main,
    .lab-student-flat-grid {
        grid-template-columns: 1fr;
    }

    .participant-instructor-grid {
        grid-template-columns: 1fr;
    }
}

@keyframes boot-spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@keyframes loading-progress-slide {
    from {
        transform: translateX(0);
    }

    to {
        transform: translateX(42%);
    }
}

@media (max-width: 980px) {
    .shell {
        grid-template-columns: 76px minmax(0, 1fr);
    }

    .brand-copy,
    .rail-section,
    .rail-label {
        display: none;
    }

    .rail-link,
    .rail-subtle-link {
        justify-content: center;
        width: 44px;
        height: 44px;
        margin: 0 auto;
        padding: 0;
    }

    .global-search {
        width: min(360px, 46vw);
    }

    .page-context {
        display: none;
    }

    .profile-copy {
        display: none;
    }

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

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

    .field-span-2 {
        grid-column: auto;
    }
}