:root {
    --schedule-accent-rgb: 61, 109, 194;
    --schedule-shadow-rgb: 24, 57, 110;
}

.filter-panel {
    border: 1px solid rgba(var(--schedule-accent-rgb), 0.12);
    border-radius: 1rem;
    background: linear-gradient(
        180deg,
        rgba(var(--schedule-accent-rgb), 0.08),
        rgba(var(--schedule-accent-rgb), 0.02)
    );
    box-shadow: 0 0.75rem 1.75rem rgba(var(--schedule-shadow-rgb), 0.08);
}

.content-card {
    border: 1px solid rgba(var(--schedule-accent-rgb), 0.12);
    border-radius: 1rem;
    box-shadow: 0 0.75rem 1.5rem rgba(var(--schedule-shadow-rgb), 0.08);
}

.meta-chip {
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    padding: 0.25rem 0.65rem;
    background: rgba(var(--schedule-accent-rgb), 0.12);
    color: var(--bs-primary);
    font-size: 0.8rem;
    font-weight: 600;
}

.stat-card {
    border-radius: 0.85rem;
    background: rgba(var(--schedule-accent-rgb), 0.07);
    padding: 0.75rem 0.9rem;
}

.stat-label {
    color: var(--bs-secondary-color);
    display: block;
    font-size: 0.78rem;
    margin-bottom: 0.2rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.stat-value {
    font-size: 1.05rem;
    font-weight: 700;
}

.timeline-track {
    position: relative;
    height: 0.8rem;
    border-radius: 999px;
    background: rgba(var(--schedule-accent-rgb), 0.12);
    overflow: hidden;
}

.timeline-bar {
    position: absolute;
    top: 0;
    bottom: 0;
    border-radius: 999px;
    background: linear-gradient(90deg, #4f8adb, #2056b7);
    min-width: 0.55rem;
}

.completion-track {
    height: 0.65rem;
    border-radius: 999px;
    background: rgba(25, 135, 84, 0.14);
    overflow: hidden;
}

.completion-fill {
    height: 100%;
    background: linear-gradient(90deg, #20a36a, #198754);
}

.data-table {
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 0.75rem 1.75rem rgba(var(--schedule-shadow-rgb), 0.08);
}

.data-table thead th {
    background: rgba(var(--schedule-accent-rgb), 0.08);
    border-bottom-width: 1px;
    color: #173a73;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.advanced-filters {
    border-top: 1px solid rgba(var(--schedule-accent-rgb), 0.12);
    margin-top: 1rem;
    padding-top: 1rem;
}

.schedule-overview-card {
    background:
        radial-gradient(circle at top right, rgba(var(--schedule-accent-rgb), 0.12), transparent 28%),
        linear-gradient(180deg, rgba(var(--schedule-accent-rgb), 0.04), rgba(var(--schedule-accent-rgb), 0.01));
}

.schedule-timeline-panel {
    border: 1px solid rgba(var(--schedule-accent-rgb), 0.12);
    border-radius: 1rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.65);
}

.schedule-timeline-track {
    height: 1rem;
}

.timeline-milestone-bar {
    position: absolute;
    top: 0.1rem;
    bottom: 0.1rem;
    border-radius: 999px;
    background: linear-gradient(90deg, #f7b500, #f28b00);
    min-width: 0.55rem;
    opacity: 0.95;
}

.timeline-milestone-bar:hover {
    opacity: 1;
}

.milestone-card {
    overflow: hidden;
}

.milestone-preview {
    border-top: 1px solid rgba(var(--schedule-accent-rgb), 0.12);
    padding-top: 0.75rem;
}

.milestone-preview summary {
    cursor: pointer;
    list-style: none;
}

.milestone-preview-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    color: var(--bs-primary);
    font-size: 0.875rem;
    font-weight: 600;
}

.milestone-preview-toggle::before {
    content: "▸";
    font-size: 0.8rem;
    transition: transform 0.15s ease-in-out;
}

.milestone-preview[open] .milestone-preview-toggle::before {
    transform: rotate(90deg);
}

.milestone-progress-percentage {
    min-width: 3rem;
    text-align: right;
}

.milestone-preview summary::-webkit-details-marker {
    display: none;
}

.task-preview-list {
    display: grid;
    gap: 0.75rem;
}

.task-preview-item {
    border: 1px solid rgba(var(--schedule-accent-rgb), 0.12);
    border-radius: 0.85rem;
    padding: 0.85rem 1rem;
    background: rgba(255, 255, 255, 0.75);
}

.task-mobile-card {
    border: 1px solid rgba(var(--schedule-accent-rgb), 0.14);
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.8);
    box-shadow: 0 0.75rem 1.5rem rgba(var(--schedule-shadow-rgb), 0.08);
}

.dependency-chip {
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    padding: 0.15rem 0.45rem;
    background: rgba(var(--schedule-accent-rgb), 0.1);
    color: rgb(var(--schedule-accent-rgb));
    font-size: 0.75rem;
    font-weight: 600;
}

@media (max-width: 767.98px) {
    .schedule-overview-card {
        padding: 1.5rem !important;
    }

    .schedule-timeline-panel {
        padding: 0.85rem;
    }
}

.gantt-scroll {
    overflow-x: auto;
    padding-bottom: 0.5rem;
}

.gantt-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1rem;
}

.gantt-legend-item {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    color: var(--bs-secondary-color);
    font-size: 0.78rem;
    font-weight: 600;
}

.gantt-legend-swatch {
    width: 0.85rem;
    height: 0.85rem;
    border-radius: 999px;
}

.gantt-legend-swatch--not-started {
    background: #6c757d;
}

.gantt-legend-swatch--in-progress {
    background: #f0ad4e;
}

.gantt-legend-swatch--completed {
    background: #20a36a;
}

.gantt-chart {
    position: relative;
    --gantt-label-width: 230px;
    --gantt-side-padding: 1rem;
}

.gantt-scale {
    position: relative;
    height: 2rem;
    margin-bottom: 1rem;
    margin-left: calc(var(--gantt-label-width) + var(--gantt-side-padding));
    width: calc(100% - var(--gantt-label-width) - (var(--gantt-side-padding) * 2));
}

.gantt-scale-label {
    position: absolute;
    top: 0;
    transform: translateX(-50%);
    white-space: nowrap;
}

.gantt-scale-label--start {
    transform: none;
}

.gantt-scale-label--end {
    transform: translateX(-100%);
}

.gantt-scale-label span {
    color: var(--bs-secondary-color);
    font-size: 0.75rem;
    font-weight: 600;
}

.gantt-body {
    position: relative;
    border: 1px solid rgba(61, 109, 194, 0.12);
    border-radius: 1rem;
    background:
        linear-gradient(
            180deg,
            rgba(61, 109, 194, 0.04),
            rgba(61, 109, 194, 0.01)
        );
    overflow: hidden;
}

.gantt-grid {
    position: absolute;
    top: 0;
    bottom: 0;
    left: calc(var(--gantt-label-width) + var(--gantt-side-padding));
    right: var(--gantt-side-padding);
    z-index: 0;
    pointer-events: none;
}

.gantt-grid-line {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 1px;
    background: rgba(61, 109, 194, 0.08);
}

.gantt-today {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 2px;
    background: rgba(220, 53, 69, 0.7);
    z-index: 3;
}

.gantt-today span {
    position: absolute;
    top: 0.35rem;
    left: 50%;
    transform: translateX(-50%);
    color: #fff;
    background: #b02a37;
    border-radius: 999px;
    padding: 0.1rem 0.35rem;
    font-size: 0.72rem;
    font-weight: 700;
    white-space: nowrap;
    line-height: 1.2;
}

.gantt-today--outside {
    opacity: 0.65;
}

.gantt-row {
    position: absolute;
    left: 0;
    right: 0;
    padding: 0 var(--gantt-side-padding);
    z-index: 2;
}

.gantt-row-label {
    position: absolute;
    top: 50%;
    left: var(--gantt-side-padding);
    width: calc(var(--gantt-label-width) - 0.5rem);
    height: 100%;
    min-width: 0;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 0.15rem;
    overflow: hidden;
}

.gantt-row-heading-wrap {
    min-width: 0;
    flex-wrap: nowrap;
}

.gantt-row-heading {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.gantt-row-meta {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.gantt-row-lane {
    position: absolute;
    top: 0;
    bottom: 0;
    left: calc(var(--gantt-label-width) + var(--gantt-side-padding));
    right: var(--gantt-side-padding);
}

.gantt-lane-track {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 0.7rem;
    border-radius: 999px;
    background: rgba(61, 109, 194, 0.1);
    transform: translateY(-50%);
}

.gantt-bar {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    min-width: 0.7rem;
    border-radius: 0.85rem;
    padding: 0.4rem 0.65rem;
    color: var(--bs-white);
    font-size: 0.75rem;
    font-weight: 600;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    z-index: 4;
}

.gantt-bar--milestone {
    background: linear-gradient(90deg, #285da8, #1b3f77);
    box-shadow: 0 0.5rem 1rem rgba(27, 63, 119, 0.18);
}

.gantt-bar--task.gantt-bar--not-started {
    background: linear-gradient(90deg, #6c757d, #495057);
}

.gantt-bar--task.gantt-bar--in-progress {
    background: linear-gradient(90deg, #f0ad4e, #d98b1d);
}

.gantt-bar--task.gantt-bar--completed {
    background: linear-gradient(90deg, #20a36a, #198754);
}

.task-status-badge {
    flex-shrink: 0;
    border: 1px solid transparent;
}

.task-status-badge--not-started {
    background: rgba(108, 117, 125, 0.14);
    border-color: rgba(108, 117, 125, 0.3);
    color: #495057;
}

.task-status-badge--in-progress {
    background: rgba(240, 173, 78, 0.16);
    border-color: rgba(217, 139, 29, 0.35);
    color: #8a570f;
}

.task-status-badge--completed {
    background: rgba(32, 163, 106, 0.14);
    border-color: rgba(25, 135, 84, 0.3);
    color: #146c43;
}

.gantt-dependency-layer {
    position: absolute;
    top: 0;
    bottom: 0;
    left: calc(var(--gantt-label-width) + var(--gantt-side-padding));
    right: var(--gantt-side-padding);
    z-index: 1;
    overflow: visible;
    pointer-events: none;
    color: rgba(23, 58, 115, 0.7);
}

.gantt-dependency-layer path {
    fill: none;
    stroke: currentColor;
    stroke-width: 1.2;
}

@media (max-width: 991.98px) {
    .gantt-chart {
        --gantt-label-width: 200px;
    }
}

@media (max-width: 767.98px) {
    .gantt-chart {
        --gantt-label-width: 170px;
        --gantt-side-padding: 0.75rem;
    }

    .gantt-bar {
        font-size: 0.7rem;
        padding-inline: 0.55rem;
    }

    .gantt-scale-label span {
        font-size: 0.68rem;
    }
}

dialog::backdrop {
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(2px);
}

dialog {
    margin: auto;
}