* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --page-max-width: 1200px;
    --page-inline-padding: clamp(1rem, 1vw + 0.8rem, 1.75rem);
    --section-gap: 1.5rem;
    --card-gap: 1rem;
    --card-padding: 1.125rem;
    --card-radius: 18px;
    /* Layering contract: app shell < header < sidebar < overlay < modal content. */
    --z-layer-app-shell: 1;
    --z-layer-header: 1000;
    --z-layer-sidebar: 1100;
    --z-layer-sidebar-overlay: 1200;
    --z-layer-modal-overlay: 1300;
    --z-layer-modal-content: 1310;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    min-height: 100vh;
    color: var(--text-primary);
}

.header-content,
.header h1,
.header-nav,
.nav-link,
.add-btn,
.theme-toggle-btn {
}

.container {
    max-width: var(--page-max-width);
    margin: 0 auto;
    padding: 0;
}

.page-shell {
    width: min(100%, var(--page-max-width));
    margin: 0 auto;
}

.flash-messages {
    margin-bottom: 20px;
}

.flash {
    padding: 15px;
    border-radius: 10px;
    font-weight: 500;
    margin-bottom: 10px;
}

.flash.success { background-color: var(--color-success-bg); color: var(--color-success-text); }
.flash.danger { background-color: var(--color-danger-bg); color: var(--color-danger-text); }

.priority-badge {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.priority-badge.very-high,
.priority-badge.high { background: var(--color-danger-bg); color: var(--color-danger-text); }
.priority-badge.medium { background: var(--color-warning-bg); color: var(--color-warning-text); }
.priority-badge.low,
.priority-badge.very-low { background: var(--color-success-bg); color: var(--color-success-text); }

.btn-sm {
    min-height: 2.25rem;
    padding: 0.45rem 0.85rem;
    font-size: 0.9rem;
    line-height: 1.2;
}

.btn-icon-gap,
.btn-sm,
.inline-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
}

.page-header,
.page-title-container {
    display: grid;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

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

.page-header__content {
    display: grid;
    gap: 0.5rem;
    min-width: 0;
}

.page-header__title,
.page-title-container h1 {
    margin: 0;
    font-size: clamp(1.9rem, 2vw + 1.2rem, 2.5rem);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.page-header__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
}

.text-subhint,
.text-helper,
.text-muted-copy,
.page-intro-copy,
.helper-copy,
.task-list-hint,
.task-list-subhint,
.helper-text {
    margin: 0;
    max-width: 72ch;
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

.text-subhint,
.page-intro-copy,
.task-list-hint {
    font-weight: 500;
}

.content-section,
.event-section {
    display: grid;
    gap: 1rem;
    margin-bottom: 2.5rem;
}

.content-section:last-child,
.event-section:last-child {
    margin-bottom: 0;
}

.section-header {
    display: grid;
    gap: 0.35rem;
}

.section-header--row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.section-title,
.event-section h2,
.section-header h2,
.section-header h3 {
    margin: 0;
    font-size: clamp(1.2rem, 1vw + 1rem, 1.55rem);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.625rem;
}

.content-panel,
.surface-card {
    background: color-mix(in srgb, var(--bg-secondary) 96%, transparent);
    padding: var(--card-padding);
    border-radius: var(--card-radius);
    border: 1px solid var(--border-primary);
    box-shadow: 0 2px 12px color-mix(in srgb, var(--shadow-color) 55%, transparent);
}

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

.card-grid {
    display: grid;
    gap: var(--card-gap);
}

.card-grid--comfortable {
    gap: 1.25rem;
}

.action-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem;
}

.action-row--between {
    justify-content: space-between;
}

.action-row--end {
    justify-content: flex-end;
}

.filter-panel {
    display: grid;
    gap: 1rem;
    padding: clamp(1rem, 1vw + 0.75rem, 1.25rem);
    border: 1px solid var(--border-primary);
    border-radius: var(--card-radius);
    background: color-mix(in srgb, var(--bg-secondary) 97%, transparent);
    box-shadow: 0 2px 12px color-mix(in srgb, var(--shadow-color) 55%, transparent);
}

.filter-panel__header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.filter-panel__heading {
    display: grid;
    gap: 0.35rem;
}

.filter-panel__heading h2,
.filter-panel__heading h3,
.filter-panel__heading p {
    margin: 0;
}

.filter-panel__description {
    margin: 0;
    color: var(--text-muted);
}

.filter-panel__form {
    display: grid;
    gap: 1rem;
}

.filter-panel__section {
    display: grid;
    gap: 0.75rem;
    margin: 0;
    padding: 0.95rem;
    border: 1px solid color-mix(in srgb, var(--border-primary) 92%, transparent);
    border-radius: 14px;
    background: color-mix(in srgb, var(--bg-primary) 45%, var(--bg-secondary));
}

.filter-panel__section legend {
    padding: 0 0.35rem;
}

.filter-panel__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0.85rem;
}

.filter-panel__group {
    display: grid;
    gap: 0.35rem;
    min-width: 0;
}

.filter-panel__group > .event-date,
.filter-panel__group > .helper-text,
.filter-panel__legend {
    margin-bottom: 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 600;
}

.filter-panel__group .form-control,
.filter-panel__group input,
.filter-panel__group select {
    width: 100%;
    min-height: 2.5rem;
}

.filter-panel__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.filter-panel--compact {
    gap: 0.75rem;
    padding: 0.85rem;
    border-radius: 14px;
}

.filter-panel--compact .filter-panel__header {
    gap: 0.5rem;
}

.filter-panel--compact .filter-panel__heading {
    gap: 0.25rem;
}

.filter-panel--compact .filter-panel__form {
    gap: 0.75rem;
}

.filter-panel--compact .filter-panel__section {
    gap: 0.55rem;
    padding: 0.75rem;
}

.filter-panel--compact .filter-panel__grid {
    gap: 0.65rem;
}

.filter-panel--compact .filter-panel__group {
    gap: 0.25rem;
}

.filter-panel--compact .filter-panel__group > .event-date,
.filter-panel--compact .filter-panel__group > .helper-text,
.filter-panel--compact .filter-panel__legend {
    font-size: 0.84rem;
}

.filter-panel--compact .filter-panel__group .form-control,
.filter-panel--compact .filter-panel__group input,
.filter-panel--compact .filter-panel__group select,
.filter-panel--compact .btn {
    min-height: 2.5rem;
}

.filter-panel--compact .filter-panel__actions {
    gap: 0.6rem;
    align-items: center;
}

#clear_filter_t {
    margin-left: auto;
}

#apply_filters_t {
    margin-right: auto;
}

.filter-panel--compact .filter-panel__actions > .btn:last-child {
    margin-left: auto;
}

.filter-panel__checklist {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1rem;
}

.filter-panel__checkbox {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    margin: 0;
}

.filter-chip-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.filter-chip-list__label,
.filter-chip-list__summary {
    margin: 0;
}

.filter-chip-list .priority-badge {
    border-radius: 999px;
    padding: 0.35rem 0.75rem;
    text-transform: none;
    letter-spacing: normal;
}

.task-goal-drilldown {
    margin-top: 0.5rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    align-items: center;
}

.goal-drilldown-chip {
    border: 1px solid var(--color-border);
    background: var(--color-bg-secondary);
    color: var(--color-text);
    border-radius: 999px;
    padding: 0.25rem 0.65rem;
    font-size: 0.8rem;
    line-height: 1.2;
    cursor: pointer;
}

.goal-drilldown-chip:hover,
.goal-drilldown-chip:focus-visible {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.task-filter-goal-scope-section {
    margin-bottom: 0.85rem;
}

.task-filter-goal-scope-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
}

.task-filter-goal-scope-control {
    min-width: 15rem;
    margin: 0;
}

.task-filter-actions-row {
    display: flex;
}

.task-dependency-metrics-grid {
    margin-top: 16px;
}

.task-dependency-section {
    margin-top: 20px;
}

.task-dependency-subtitle {
    font-size: 1.05rem;
    margin-bottom: 12px;
}

.task-dependency-resolution-note {
    margin-top: 12px;
}

.detail-section {
    display: grid;
    gap: 0.85rem;
}

.text-block {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.55;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
}

.info-card {
    display: grid;
    gap: 0.25rem;
    padding: 0.75rem 0.85rem;
    border: 1px solid var(--border-primary);
    border-radius: 12px;
    background: color-mix(in srgb, var(--bg-primary) 40%, var(--bg-secondary));
}

.info-card label {
    color: var(--text-muted);
    font-size: 0.82rem;
    font-weight: 600;
}

.info-card .value {
    color: var(--text-secondary);
    font-size: 1.05rem;
    font-weight: 700;
}

.participants-list {
    display: grid;
    gap: 0.5rem;
}

.participant-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 0.5rem;
    align-items: center;
}

.participant {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    min-width: 0;
    max-width: 100%;
    padding: 0.6rem 0.75rem;
    border: 1px solid var(--border-primary);
    border-radius: 10px;
    background: color-mix(in srgb, var(--bg-primary) 42%, var(--bg-secondary));
    color: var(--text-primary);
    text-decoration: none;
    line-height: 1.45;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.participant:hover,
.participant:focus-visible {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.task-dependency-add-form {
    display: grid;
    gap: 0.4rem;
}

.task-dependency-add-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.task-dependency-add-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 0.5rem;
    align-items: center;
}

.task-dependency-feedback {
    margin: 0;
    min-height: 1.1rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.task-dependency-add-hint {
    margin: 0;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.task-dependency-feedback.is-error {
    color: var(--color-danger-text);
}

.stack-xs,
.stack-sm,
.stack-md,
.stack-lg {
    display: grid;
}

.stack-xs { gap: 0.35rem; }
.stack-sm { gap: 0.5rem; }
.stack-md { gap: 0.75rem; }
.stack-lg { gap: 1rem; }

.cluster-xs,
.cluster-sm,
.cluster-md,
.cluster-lg {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
}

.cluster-xs { gap: 0.35rem; }
.cluster-sm { gap: 0.5rem; }
.cluster-md { gap: 0.75rem; }
.cluster-lg { gap: 1rem; }

.cluster-end {
    justify-content: flex-end;
}

.cluster-between {
    justify-content: space-between;
}

.inline-form {
    display: inline;
}

.is-visible-block {
    display: block;
}

.is-hidden {
    display: none !important;
}

.section-top-gap {
    margin-top: 1.5rem;
}

.badge-offset-inline {
    margin-left: 0.5rem;
}

.card-meta-list--compact {
    display: grid;
    gap: 0.65rem;
}

.card-meta-row--compact {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    align-items: start;
    gap: 0.45rem 0.75rem;
    line-height: 1.45;
    padding-bottom: 0.65rem;
    border-bottom: 1px solid var(--border-primary);
}

.card-meta-row--compact:last-child {
    padding-bottom: 0;
    border-bottom: none;
}

.card-meta-row--compact > * {
    margin: 0;
}

.task-bulk-toolbar {
    display: grid;
    gap: 0.75rem;
}

.task-bulk-panel {
    display: grid;
    gap: 0.65rem;
}

.task-bulk-toolbar-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem;
    justify-content: space-between;
}

.task-bulk-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.task-bulk-actions button {
    white-space: nowrap;
}

.task-bulk-selection-count {
    font-weight: 600;
}

.task-bulk-reschedule-panel {
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--border-primary);
}

.task-bulk-reschedule-panel summary {
    cursor: pointer;
    font-weight: 600;
    color: var(--text-secondary);
    list-style: none;
}

.task-bulk-reschedule-panel summary::-webkit-details-marker {
    display: none;
}

.task-bulk-reschedule-panel summary::after {
    content: 'Show';
    margin-left: 0.5rem;
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 500;
}

.task-bulk-reschedule-panel[open] summary::after {
    content: 'Hide';
}

.task-bulk-reschedule-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0.75rem;
    align-items: end;
}

.task-bulk-reschedule-grid label {
    display: grid;
    gap: 0.35rem;
    font-size: 0.95rem;
}

.task-bulk-reschedule-hint {
    margin: 0;
}

.task-select-card {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.75rem;
    align-items: stretch;
}

.task-select-checkbox {
    margin-top: 1rem;
    width: 1rem;
    height: 1rem;
}

.task-select-card--compact .task-select-checkbox {
    margin-top: 0.8rem;
}

.task-section-heading {
    display: grid;
    gap: 0.2rem;
}

.task-section-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-end;
    gap: 0.55rem;
}

.task-section-subhint {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.task-empty-state-card {
    display: grid;
    gap: 0.45rem;
}

.task-empty-state-title {
    margin: 0;
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.45;
}

.task-empty-state-hint {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.92rem;
}

.priority-badge--meta {
    opacity: 0.92;
}

.task-selection-toolbar {
    position: sticky;
    top: 0.75rem;
    z-index: 2;
}

.settings-layout {
    display: grid;
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 1rem;
    align-items: start;
}

.settings-layout__nav {
    display: grid;
    gap: 0.5rem;
}

.review-header-row,
.review-nav-row,
.review-header-actions {
    display: flex;
    justify-content: space-between;
    gap: 0.75rem;
    flex-wrap: wrap;
    align-items: center;
}

.review-header-title {
    margin: 0;
}

.review-nav-row {
    margin-bottom: 1rem;
}


.history-stream-shell {
    width: min(100%, 920px);
    margin: 0 auto;
    display: grid;
    gap: 1rem;
}

.history-stream-layout {
    display: grid;
    gap: 1rem;
}

.history-empty-state {
    border: 1px dashed var(--border-primary);
}

.recent-task-activity-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.8fr) minmax(260px, 1fr);
    gap: 1rem;
    align-items: start;
}

.recent-task-activity-panel,
.recent-task-summary-panel,
.recent-task-summary-copy,
.recent-task-activity-content {
    display: grid;
}

.recent-task-activity-panel,
.recent-task-summary-panel {
    gap: 0.75rem;
}

.recent-task-summary-copy {
    gap: 0.2rem;
}

.recent-task-activity-content {
    gap: 0.3rem;
    min-width: 0;
}

.recent-task-summary-icon,
.recent-task-activity-icon {
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    color: var(--accent-primary);
}

.recent-task-summary-icon {
    width: 1.85rem;
    height: 1.85rem;
}

.recent-task-activity-icon {
    width: 2rem;
    height: 2rem;
}

.recent-task-summary-title {
    margin: 0;
    font-weight: 600;
}

.section-summary-card {
    padding: 1rem 1.125rem;
}

.recent-task-activity-header,
.recent-task-activity-footer,
.recent-task-activity-meta,
.recent-task-activity-links {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
}

.recent-task-activity-header,
.recent-task-activity-footer {
    justify-content: space-between;
    gap: 0.5rem;
}

.recent-task-activity-meta {
    gap: 0.5rem;
}

.recent-task-activity-links {
    gap: 0.75rem;
}

.recent-task-activity-title,
.recent-task-activity-link {
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 600;
}

.recent-task-activity-title:hover,
.recent-task-activity-link:hover {
    text-decoration: underline;
}

.recent-task-activity-summary {
    margin: 0;
}

@media (max-width: 960px) {
    .recent-task-activity-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 720px) {
    .page-header,
    .page-title-container {
        margin-bottom: 1.5rem;
    }

    .content-section,
    .event-section {
        margin-bottom: 2rem;
    }
}

@media (max-width: 640px) {
    .filter-panel {
        padding: 0.95rem;
    }

    .filter-panel__section {
        padding: 0.8rem;
    }

    .filter-panel__grid {
        grid-template-columns: 1fr;
    }

    .filter-panel--compact {
        padding: 0.8rem;
    }

    .filter-panel--compact .filter-panel__section {
        padding: 0.7rem;
    }

    .filter-panel--compact .filter-panel__actions {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-panel--compact .filter-panel__actions > .btn:last-child {
        margin-left: 0;
        width: 100%;
    }

    .page-header__top,
    .section-header--row,
    .action-row--between {
        flex-direction: column;
        align-items: stretch;
    }

    .task-filter-goal-scope-control {
        min-width: 0;
        width: 100%;
    }

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

}

.recap-token {
    display: inline-flex;
    align-items: center;
    padding: 0.08rem 0.46rem;
    margin: 0 0.08rem;
    border-radius: 999px;
    font-weight: 600;
    line-height: 1.35;
    text-decoration: none;
    border: 1px solid color-mix(in srgb, var(--accent-primary, #3b82f6) 45%, transparent);
    background: color-mix(in srgb, var(--accent-primary, #3b82f6) 12%, transparent);
    color: var(--accent-primary, #2f6fd6);
}

.recap-token.recap-token-link:hover {
    text-decoration: underline;
    background: color-mix(in srgb, var(--accent-primary, #3b82f6) 18%, transparent);
}

.recap-token.recap-token-missing {
    border-color: color-mix(in srgb, #dc3545 42%, transparent);
    background: color-mix(in srgb, #dc3545 10%, transparent);
    color: #b02a37;
}

@media (max-width: 900px) {
    .settings-layout {
        grid-template-columns: 1fr;
    }

    .settings-layout__nav {
        grid-auto-flow: column;
        grid-auto-columns: minmax(10rem, 1fr);
        overflow-x: auto;
        padding-bottom: 0.25rem;
    }

    .review-header-actions {
        width: 100%;
    }

    .participant-row,
    .task-dependency-add-row {
        grid-template-columns: 1fr;
    }

    .task-dependency-controls .btn,
    .task-dependency-controls .form-control {
        width: 100%;
        min-height: 44px;
    }

    .task-dependency-controls .btn {
        justify-content: center;
    }
}

.recap-token.recap-token--relationship-mention {
    border-style: dashed;
    background: color-mix(in srgb, var(--accent-primary, #3b82f6) 6%, transparent);
    color: color-mix(in srgb, var(--accent-primary, #3b82f6) 46%, var(--text-primary, #1f2937));
}

.recap-formatted-preview {
    margin-top: 0.55rem;
    border: 1px dashed var(--border-primary);
    border-radius: 8px;
    padding: 0.52rem 0.66rem;
    background: color-mix(in srgb, var(--bg-secondary, #f8f9fa) 72%, transparent);
}

.recap-formatted-preview__label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-secondary);
    margin-bottom: 0.3rem;
}

.recap-formatted-preview__body {
    min-height: 1.15rem;
    white-space: pre-wrap;
    color: var(--text-primary);
}