/* ============================================
   ImportPanel v5.0 - Timeline Page (Gantt Chart)
   Enhanced: dependencies, milestones, grouping,
   export, date range, critical path, pulsing today
   ============================================ */

/* ---- Gantt Color Tokens (Light) ---- */
:root {
    --gantt-bar-planning: #3b82f6;
    --gantt-bar-planning-text: #ffffff;
    --gantt-bar-transit: #f59e0b;
    --gantt-bar-transit-text: #ffffff;
    --gantt-bar-customs: #8b5cf6;
    --gantt-bar-customs-text: #ffffff;
    --gantt-bar-delivered: #10b981;
    --gantt-bar-delivered-text: #ffffff;
    --gantt-grid-color: var(--color-border-light);
    --gantt-header-bg: var(--color-surface-alt);
    --gantt-row-alt: rgba(0, 0, 0, 0.015);
    --gantt-row-hover: rgba(0, 0, 0, 0.03);
    --gantt-label-bg: var(--color-surface);
    --gantt-today-color: #ef4444;
    --gantt-dependency-color: #94a3b8;
    --gantt-critical-color: #ef4444;
    --gantt-milestone-color: #f59e0b;
    --gantt-group-bg: #f1f5f9;
    --gantt-group-border: #cbd5e1;
    --gantt-group-text: #334155;
}

[data-theme="dark"] {
    --gantt-bar-planning: #60a5fa;
    --gantt-bar-planning-text: #0c1e3a;
    --gantt-bar-transit: #fbbf24;
    --gantt-bar-transit-text: #422006;
    --gantt-bar-customs: #a78bfa;
    --gantt-bar-customs-text: #1e0a4a;
    --gantt-bar-delivered: #34d399;
    --gantt-bar-delivered-text: #052e1a;
    --gantt-grid-color: var(--color-border);
    --gantt-header-bg: var(--color-surface-alt);
    --gantt-row-alt: rgba(255, 255, 255, 0.015);
    --gantt-row-hover: rgba(79, 143, 247, 0.05);
    --gantt-label-bg: var(--color-surface);
    --gantt-today-color: #f87171;
    --gantt-dependency-color: #475569;
    --gantt-critical-color: #f87171;
    --gantt-milestone-color: #fbbf24;
    --gantt-group-bg: #1e293b;
    --gantt-group-border: #334155;
    --gantt-group-text: #e2e8f0;
}

/* ---- Filter Select ---- */
.timeline-filters {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.timeline-filter-select {
    min-width: 180px;
    height: 38px;
}

/* ---- Timeline Zoom & Filters Controls Bar ---- */
.timeline-controls {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.timeline-zoom {
    display: flex;
    align-items: center;
    gap: 4px;
}

.timeline-zoom-btn {
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface);
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    color: var(--color-text-secondary);
    padding: 0 10px;
    white-space: nowrap;
    transition: background-color 0.15s, border-color 0.15s, color 0.15s;
}

.timeline-zoom-btn:not([data-zoom]) {
    width: 32px;
    padding: 0;
}

.timeline-zoom-btn:hover {
    background: var(--color-bg);
    color: var(--color-text);
    border-color: var(--color-primary);
}

.timeline-zoom-btn.active {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

.timeline-zoom-label {
    font-size: 12px;
    color: var(--color-text-muted);
    margin: 0 4px;
}

/* ---- Quick Date Presets ---- */
.timeline-presets {
    display: flex;
    gap: 4px;
}

.timeline-preset-btn {
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 500;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: none;
    cursor: pointer;
    color: var(--color-text-secondary);
    white-space: nowrap;
    transition: background-color 0.15s, border-color 0.15s, color 0.15s;
}

.timeline-preset-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.timeline-preset-btn.active {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

/* ---- Today Marker Label Enhancement ---- */
.timeline-today-label {
    font-size: 10px;
    font-weight: 600;
    color: var(--color-danger, #ef4444);
    white-space: nowrap;
    background: var(--color-surface);
    padding: 1px 6px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

/* ---- Week grid lines (lighter) ---- */
.gantt-grid-line--week {
    opacity: 0.4;
}

/* ---- Date Range Inputs ---- */
.timeline-date-range {
    display: flex;
    align-items: center;
    gap: 8px;
}

.timeline-date-range label {
    font-size: 12px;
    font-weight: 600;
    color: var(--color-text-secondary);
    white-space: nowrap;
}

.timeline-date-input {
    height: 38px;
    padding: 0 10px;
    font-size: 13px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    color: var(--color-text);
    min-width: 140px;
}

.timeline-date-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

[data-theme="dark"] .timeline-date-input {
    background: var(--color-surface-alt);
    border-color: var(--color-border);
    color: var(--color-text);
}

.timeline-date-sep {
    font-size: 12px;
    color: var(--color-text-muted);
}

.timeline-date-clear {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    padding: 0;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    color: var(--color-text-secondary);
    cursor: pointer;
    font-size: 14px;
    line-height: 1;
    transition: background-color 0.15s, border-color 0.15s;
}

.timeline-date-clear:hover {
    background: var(--color-surface-alt);
    border-color: var(--color-border-dark, var(--color-border));
    color: var(--color-text);
}

/* ---- Toolbar: Legend + Zoom ---- */
.gantt-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 10px 16px;
    margin-bottom: 12px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    flex-wrap: wrap;
}

/* -- Legend -- */
.gantt-legend {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.gantt-legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.gantt-legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.gantt-legend-diamond {
    width: 10px;
    height: 10px;
    flex-shrink: 0;
    transform: rotate(45deg);
}

.gantt-legend-label {
    font-size: 12px;
    font-weight: 500;
    color: var(--color-text-secondary);
    white-space: nowrap;
}

/* -- Milestone Legend with Toggles -- */
.gantt-milestone-legend {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    padding: 8px 12px;
    background: var(--color-surface-alt);
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
}

.gantt-milestone-legend-title {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-muted);
    margin-right: 4px;
}

.gantt-milestone-toggle {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    user-select: none;
}

.gantt-milestone-checkbox {
    width: 14px;
    height: 14px;
    cursor: pointer;
}

.gantt-milestone-diamond-sm {
    width: 8px;
    height: 8px;
    flex-shrink: 0;
    transform: rotate(45deg);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
}

.gantt-milestone-toggle-label {
    font-size: 11px;
    font-weight: 500;
    color: var(--color-text-secondary);
    white-space: nowrap;
}

/* -- Toolbar controls (zoom + grouping + export) -- */
.gantt-controls {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
    flex-wrap: wrap;
}

/* -- Zoom Controls -- */
.gantt-zoom {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

.gantt-zoom-label-text {
    font-size: 12px;
    font-weight: 600;
    color: var(--color-text-muted);
    margin-right: 2px;
}

.gantt-zoom-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    padding: 0;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: background-color 0.15s, border-color 0.15s, color 0.15s;
}

.gantt-zoom-btn:hover {
    background: var(--color-surface-alt);
    border-color: var(--color-border-dark, var(--color-border));
    color: var(--color-text);
}

.gantt-zoom-btn:active {
    background: var(--color-border-light);
}

.gantt-zoom-value {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 28px;
    padding: 0 4px;
    font-size: 12px;
    font-weight: 600;
    color: var(--color-text);
    background: var(--color-surface-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    text-align: center;
}

/* -- Grouping Select -- */
.gantt-group-select {
    height: 28px;
    padding: 0 8px;
    font-size: 12px;
    font-weight: 500;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    color: var(--color-text-secondary);
    cursor: pointer;
    min-width: 120px;
}

.gantt-group-select:focus {
    outline: none;
    border-color: var(--color-primary);
}

[data-theme="dark"] .gantt-group-select {
    background: var(--color-surface-alt);
    border-color: var(--color-border);
    color: var(--color-text);
}

/* -- Export Button -- */
.gantt-export-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    height: 28px;
    padding: 0 12px;
    font-size: 12px;
    font-weight: 600;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    color: var(--color-text-secondary);
    cursor: pointer;
    white-space: nowrap;
    transition: background-color 0.15s, border-color 0.15s, color 0.15s;
}

.gantt-export-btn:hover {
    background: var(--color-surface-alt);
    border-color: var(--color-border-dark, var(--color-border));
    color: var(--color-text);
}

.gantt-export-btn:active {
    background: var(--color-border-light);
}

/* -- Add Milestone Button -- */
.gantt-milestone-add-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    height: 28px;
    padding: 0 12px;
    font-size: 12px;
    font-weight: 600;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    color: var(--color-text-secondary);
    cursor: pointer;
    white-space: nowrap;
    transition: background-color 0.15s, border-color 0.15s, color 0.15s;
}

.gantt-milestone-add-btn:hover {
    background: var(--color-surface-alt);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.gantt-milestone-add-btn:active {
    background: var(--color-border-light);
}

/* -- Critical Path Toggle -- */
.gantt-critical-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    height: 28px;
    padding: 0 12px;
    font-size: 12px;
    font-weight: 600;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    color: var(--color-text-secondary);
    cursor: pointer;
    white-space: nowrap;
    transition: background-color 0.15s, border-color 0.15s, color 0.15s;
}

.gantt-critical-btn:hover {
    background: var(--color-surface-alt);
    border-color: var(--color-border-dark, var(--color-border));
    color: var(--color-text);
}

.gantt-critical-btn.active {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--gantt-critical-color);
    color: var(--gantt-critical-color);
}

[data-theme="dark"] .gantt-critical-btn.active {
    background: rgba(248, 113, 113, 0.15);
}

/* ---- Timeline Container ---- */
.timeline {
    position: relative;
    padding: 0;
}

/* ---- Gantt Wrapper ---- */
.gantt-wrapper {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

/* ---- Gantt Layout (left labels + right chart) ---- */
.gantt-layout {
    display: flex;
    min-height: 200px;
}

/* ---- Left: Labels Column ---- */
.gantt-labels {
    width: 200px;
    min-width: 200px;
    flex-shrink: 0;
    border-right: 2px solid var(--color-border);
    background: var(--gantt-label-bg);
    z-index: 2;
}

.gantt-labels-header {
    height: 44px;
    display: flex;
    align-items: center;
    padding: 0 14px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--color-text-muted);
    background: var(--gantt-header-bg);
    border-bottom: 2px solid var(--color-border);
}

.gantt-label-row {
    height: 44px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 0 14px;
    border-bottom: 1px solid var(--color-border-light);
    cursor: pointer;
    transition: background-color 0.15s;
}

.gantt-label-row:nth-child(even) {
    background: var(--gantt-row-alt);
}

.gantt-label-row:hover {
    background: var(--gantt-row-hover);
}

.gantt-label-name {
    font-size: 12px;
    font-weight: 600;
    color: var(--color-text);
    line-height: 1.3;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.gantt-label-supplier {
    font-size: 11px;
    color: var(--color-text-muted);
    line-height: 1.2;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ---- Group Header Row (Labels side) ---- */
.gantt-label-group {
    height: 32px;
    display: flex;
    align-items: center;
    padding: 0 10px;
    background: var(--gantt-group-bg);
    border-bottom: 1px solid var(--gantt-group-border);
    cursor: pointer;
    user-select: none;
    transition: background-color 0.15s;
}

.gantt-label-group:hover {
    filter: brightness(0.97);
}

.gantt-label-group-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    margin-right: 6px;
    font-size: 10px;
    color: var(--gantt-group-text);
    transition: transform 0.2s;
    flex-shrink: 0;
}

.gantt-label-group-toggle.collapsed {
    transform: rotate(-90deg);
}

.gantt-label-group-name {
    font-size: 11px;
    font-weight: 700;
    color: var(--gantt-group-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.gantt-label-group-count {
    font-size: 10px;
    font-weight: 600;
    color: var(--color-text-muted);
    margin-left: 6px;
    background: rgba(0, 0, 0, 0.06);
    padding: 1px 6px;
    border-radius: 8px;
}

[data-theme="dark"] .gantt-label-group-count {
    background: rgba(255, 255, 255, 0.08);
}

/* Group header on chart side */
.gantt-row-group {
    height: 32px;
    background: var(--gantt-group-bg);
    border-bottom: 1px solid var(--gantt-group-border);
    position: relative;
}

/* Hidden rows in collapsed groups */
.gantt-label-row.gantt-hidden,
.gantt-row.gantt-hidden {
    display: none;
}

/* ---- Right: Scrollable Chart Area ---- */
.gantt-chart-scroll {
    flex: 1;
    overflow-x: auto;
    overflow-y: hidden;
    position: relative;
}

.gantt-chart {
    position: relative;
    min-height: 200px;
}

/* ---- Month Header ---- */
.gantt-header {
    position: relative;
    height: 44px;
    background: var(--gantt-header-bg);
    border-bottom: 2px solid var(--color-border);
}

.gantt-month {
    position: absolute;
    top: 0;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-right: 1px solid color-mix(in srgb, var(--color-border), transparent 30%);
    box-sizing: border-box;
}

.gantt-month span {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--color-text-secondary);
    white-space: nowrap;
}

/* ---- Grid Lines ---- */
.gantt-grid {
    position: absolute;
    top: 44px;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 0;
}

.gantt-grid-line {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 1px;
    background-color: var(--gantt-grid-color);
}

/* ---- Today Marker (improved with pulsing dot + dashed line) ---- */
.gantt-today-line {
    position: absolute;
    top: 44px;
    bottom: 0;
    width: 2px;
    background: none;
    border-left: 2px dashed var(--gantt-today-color);
    z-index: 3;
    opacity: 0.9;
    box-shadow: 0 0 8px rgba(239, 68, 68, 0.4);
    animation: ganttTodayLinePulse 3s ease-in-out infinite;
}

@keyframes ganttTodayLinePulse {
    0%, 100% {
        opacity: 0.9;
        box-shadow: 0 0 8px rgba(239, 68, 68, 0.4);
    }
    50% {
        opacity: 1;
        box-shadow: 0 0 16px rgba(239, 68, 68, 0.6);
    }
}

[data-theme="dark"] .gantt-today-line {
    border-left-color: var(--gantt-today-color);
    box-shadow: 0 0 8px rgba(248, 113, 113, 0.5);
    animation: ganttTodayLinePulseDark 3s ease-in-out infinite;
}

@keyframes ganttTodayLinePulseDark {
    0%, 100% {
        opacity: 0.9;
        box-shadow: 0 0 8px rgba(248, 113, 113, 0.5);
    }
    50% {
        opacity: 1;
        box-shadow: 0 0 16px rgba(248, 113, 113, 0.7);
    }
}

.gantt-today-dot {
    position: absolute;
    top: 44px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--gantt-today-color);
    z-index: 5;
    transform: translate(-5px, -6px);
    box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.5);
    animation: ganttTodayPulse 2s ease-in-out infinite;
}

@keyframes ganttTodayPulse {
    0% {
        box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.5);
        transform: translate(-5px, -6px) scale(1);
    }
    50% {
        box-shadow: 0 0 0 8px rgba(239, 68, 68, 0);
        transform: translate(-5px, -6px) scale(1.15);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(239, 68, 68, 0);
        transform: translate(-5px, -6px) scale(1);
    }
}

[data-theme="dark"] .gantt-today-dot {
    box-shadow: 0 0 0 0 rgba(248, 113, 113, 0.5);
    animation: ganttTodayPulseDark 2s ease-in-out infinite;
}

@keyframes ganttTodayPulseDark {
    0% {
        box-shadow: 0 0 0 0 rgba(248, 113, 113, 0.5);
        transform: translate(-5px, -6px) scale(1);
    }
    50% {
        box-shadow: 0 0 0 8px rgba(248, 113, 113, 0);
        transform: translate(-5px, -6px) scale(1.15);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(248, 113, 113, 0);
        transform: translate(-5px, -6px) scale(1);
    }
}

.gantt-today-label {
    position: absolute;
    top: 0px;
    z-index: 6;
    transform: translateX(-50%);
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: #fff;
    background: var(--gantt-today-color);
    padding: 3px 9px;
    border-radius: 6px;
    white-space: nowrap;
    box-shadow: 0 2px 8px rgba(239, 68, 68, 0.4);
    line-height: 1.4;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

[data-theme="dark"] .gantt-today-label {
    box-shadow: 0 2px 8px rgba(248, 113, 113, 0.5);
    border-color: rgba(255, 255, 255, 0.15);
}

/* ---- Gantt Rows (bar area) ---- */
.gantt-rows {
    position: relative;
    z-index: 1;
}

.gantt-row {
    position: relative;
    height: 44px;
    border-bottom: 1px solid var(--color-border-light);
    transition: background-color 0.12s ease;
}

.gantt-row:nth-child(even) {
    background: var(--gantt-row-alt);
}

.gantt-row:nth-child(odd) {
    background: transparent;
}

.gantt-row:hover {
    background: var(--gantt-row-hover);
}

/* ---- Gantt Bar ---- */
.gantt-bar {
    position: absolute;
    top: 8px;
    height: 28px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    padding: 0 10px;
    cursor: pointer;
    z-index: 2;
    transition: filter 0.15s, box-shadow 0.15s, transform 0.15s;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    overflow: hidden;
}

.gantt-bar:hover {
    filter: brightness(1.08);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.18), 0 2px 4px rgba(0, 0, 0, 0.1);
    transform: translateY(-1px);
    z-index: 5;
}

.gantt-bar:active {
    transform: translateY(0);
}

/* Bar status colors with gradient fills and diagonal stripe patterns for in-progress */
.gantt-bar--planning {
    background: linear-gradient(135deg,
        color-mix(in srgb, var(--gantt-bar-planning), #fff 15%),
        var(--gantt-bar-planning)),
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 10px,
            rgba(255, 255, 255, 0.08) 10px,
            rgba(255, 255, 255, 0.08) 20px
        );
    background-size: 100% 100%, 100% 100%;
    color: var(--gantt-bar-planning-text);
    box-shadow: 0 1px 3px rgba(59, 130, 246, 0.3), 0 1px 2px rgba(0, 0, 0, 0.08);
}

.gantt-bar--transit {
    background: linear-gradient(135deg,
        color-mix(in srgb, var(--gantt-bar-transit), #fff 15%),
        var(--gantt-bar-transit)),
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 10px,
            rgba(255, 255, 255, 0.1) 10px,
            rgba(255, 255, 255, 0.1) 20px
        );
    background-size: 100% 100%, 100% 100%;
    color: var(--gantt-bar-transit-text);
    box-shadow: 0 1px 3px rgba(245, 158, 11, 0.3), 0 1px 2px rgba(0, 0, 0, 0.08);
}

.gantt-bar--customs {
    background: linear-gradient(135deg,
        color-mix(in srgb, var(--gantt-bar-customs), #fff 15%),
        var(--gantt-bar-customs)),
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 10px,
            rgba(255, 255, 255, 0.08) 10px,
            rgba(255, 255, 255, 0.08) 20px
        );
    background-size: 100% 100%, 100% 100%;
    color: var(--gantt-bar-customs-text);
    box-shadow: 0 1px 3px rgba(139, 92, 246, 0.3), 0 1px 2px rgba(0, 0, 0, 0.08);
}

.gantt-bar--delivered {
    background: linear-gradient(135deg,
        color-mix(in srgb, var(--gantt-bar-delivered), #fff 15%),
        var(--gantt-bar-delivered));
    /* No stripes for delivered - solid */
    color: var(--gantt-bar-delivered-text);
    box-shadow: 0 1px 3px rgba(16, 185, 129, 0.3), 0 1px 2px rgba(0, 0, 0, 0.08);
}

/* Dark mode adjustments for bar gradients */
[data-theme="dark"] .gantt-bar--planning {
    background: linear-gradient(135deg,
        color-mix(in srgb, var(--gantt-bar-planning), #000 10%),
        var(--gantt-bar-planning)),
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 10px,
            rgba(0, 0, 0, 0.15) 10px,
            rgba(0, 0, 0, 0.15) 20px
        );
}

[data-theme="dark"] .gantt-bar--transit {
    background: linear-gradient(135deg,
        color-mix(in srgb, var(--gantt-bar-transit), #000 10%),
        var(--gantt-bar-transit)),
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 10px,
            rgba(0, 0, 0, 0.18) 10px,
            rgba(0, 0, 0, 0.18) 20px
        );
}

[data-theme="dark"] .gantt-bar--customs {
    background: linear-gradient(135deg,
        color-mix(in srgb, var(--gantt-bar-customs), #000 10%),
        var(--gantt-bar-customs)),
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 10px,
            rgba(0, 0, 0, 0.15) 10px,
            rgba(0, 0, 0, 0.15) 20px
        );
}

[data-theme="dark"] .gantt-bar--delivered {
    background: linear-gradient(135deg,
        color-mix(in srgb, var(--gantt-bar-delivered), #000 10%),
        var(--gantt-bar-delivered));
}

/* Critical path bar highlight */
.gantt-bar.gantt-bar--critical {
    outline: 2px solid var(--gantt-critical-color);
    outline-offset: 2px;
    animation: ganttCriticalGlow 2s ease-in-out infinite;
}

@keyframes ganttCriticalGlow {
    0%, 100% {
        outline-color: var(--gantt-critical-color);
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12), 0 0 6px rgba(239, 68, 68, 0.3);
    }
    50% {
        outline-color: rgba(239, 68, 68, 0.5);
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12), 0 0 12px rgba(239, 68, 68, 0.5);
    }
}

[data-theme="dark"] .gantt-bar.gantt-bar--critical {
    animation: ganttCriticalGlowDark 2s ease-in-out infinite;
}

@keyframes ganttCriticalGlowDark {
    0%, 100% {
        outline-color: var(--gantt-critical-color);
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3), 0 0 6px rgba(248, 113, 113, 0.3);
    }
    50% {
        outline-color: rgba(248, 113, 113, 0.5);
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3), 0 0 12px rgba(248, 113, 113, 0.5);
    }
}

/* Bar label */
.gantt-bar-label {
    font-size: 11px;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1;
}

/* ---- Milestone Diamonds ---- */
.gantt-milestone {
    position: absolute;
    width: 14px;
    height: 14px;
    top: 15px;
    z-index: 4;
    transform: translateX(-7px) rotate(45deg);
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.gantt-milestone:hover {
    transform: translateX(-7px) rotate(45deg) scale(1.35);
    box-shadow: 0 0 12px rgba(245, 158, 11, 0.5), 0 2px 8px rgba(0, 0, 0, 0.25);
    z-index: 6;
}

.gantt-milestone--etd:hover {
    box-shadow: 0 0 12px rgba(59, 130, 246, 0.5), 0 2px 8px rgba(0, 0, 0, 0.25);
}

.gantt-milestone--eta:hover,
.gantt-milestone--delivery:hover {
    box-shadow: 0 0 12px rgba(16, 185, 129, 0.5), 0 2px 8px rgba(0, 0, 0, 0.25);
}

.gantt-milestone--payment:hover {
    box-shadow: 0 0 12px rgba(245, 158, 11, 0.5), 0 2px 8px rgba(0, 0, 0, 0.25);
}

.gantt-milestone--customs:hover {
    box-shadow: 0 0 12px rgba(139, 92, 246, 0.5), 0 2px 8px rgba(0, 0, 0, 0.25);
}

.gantt-milestone--etd {
    background: #3b82f6;
}

[data-theme="dark"] .gantt-milestone--etd {
    background: #60a5fa;
}

.gantt-milestone--eta {
    background: #10b981;
}

[data-theme="dark"] .gantt-milestone--eta {
    background: #34d399;
}

.gantt-milestone--payment {
    background: #f59e0b;
}

[data-theme="dark"] .gantt-milestone--payment {
    background: #fbbf24;
}

.gantt-milestone--customs {
    background: #8b5cf6;
}

[data-theme="dark"] .gantt-milestone--customs {
    background: #a78bfa;
}

.gantt-milestone--delivery {
    background: #10b981;
}

[data-theme="dark"] .gantt-milestone--delivery {
    background: #34d399;
}

/* ---- Custom Milestone Lines (Global) ---- */
.gantt-custom-milestones {
    position: absolute;
    top: 44px;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 3;
}

.gantt-custom-milestone-line {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #ec4899;
    opacity: 0.7;
    pointer-events: auto;
    cursor: pointer;
    transition: opacity 0.15s, width 0.15s;
}

.gantt-custom-milestone-line:hover {
    opacity: 1;
    width: 3px;
}

[data-theme="dark"] .gantt-custom-milestone-line {
    background: #f472b6;
}

.gantt-custom-milestone-label {
    position: absolute;
    top: 4px;
    transform: translateX(-50%);
    background: #ec4899;
    color: #fff;
    font-size: 10px;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    white-space: nowrap;
    z-index: 5;
    pointer-events: auto;
    display: flex;
    align-items: center;
    gap: 6px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

[data-theme="dark"] .gantt-custom-milestone-label {
    background: #f472b6;
    color: #1f2937;
}

.gantt-custom-milestone-name {
    line-height: 1;
}

.gantt-custom-milestone-delete {
    background: none;
    border: none;
    color: inherit;
    cursor: pointer;
    font-size: 14px;
    font-weight: 700;
    line-height: 1;
    padding: 0;
    margin: 0;
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background-color 0.15s;
}

.gantt-custom-milestone-delete:hover {
    background: rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .gantt-custom-milestone-delete:hover {
    background: rgba(0, 0, 0, 0.3);
}

/* ---- Milestone Modal Form ---- */
.milestone-modal-form {
    padding: 4px 0;
}

.milestone-modal-form .form-group {
    margin-bottom: 16px;
}

.milestone-modal-form .form-group:last-child {
    margin-bottom: 0;
}

.milestone-modal-form label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 6px;
}

.milestone-modal-form .form-input {
    width: 100%;
    padding: 8px 12px;
    font-size: 13px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    color: var(--color-text);
}

.milestone-modal-form .form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

[data-theme="dark"] .milestone-modal-form .form-input {
    background: var(--color-surface-alt);
    border-color: var(--color-border);
}

/* ---- Dependency Arrows (SVG overlay) ---- */
.gantt-dependencies {
    position: absolute;
    top: 44px;
    left: 0;
    pointer-events: none;
    z-index: 1;
    overflow: visible;
}

.gantt-dep-line {
    fill: none;
    stroke: var(--gantt-dependency-color);
    stroke-width: 1.5;
    stroke-dasharray: 4, 3;
}

.gantt-dep-arrow {
    fill: var(--gantt-dependency-color);
    stroke: none;
}

.gantt-dep-line--critical {
    stroke: var(--gantt-critical-color);
    stroke-width: 2;
    stroke-dasharray: none;
}

.gantt-dep-arrow--critical {
    fill: var(--gantt-critical-color);
}

/* ---- Tooltip (Enhanced with rounded corners and rich info) ---- */
.gantt-tooltip {
    position: fixed;
    z-index: 1000;
    pointer-events: none;
    opacity: 0;
    visibility: hidden;
    transition: opacity 150ms ease, visibility 150ms ease, transform 150ms ease;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 14px;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.12), 0 4px 16px rgba(0, 0, 0, 0.08);
    padding: 14px 18px;
    min-width: 240px;
    max-width: 320px;
    transform: translateY(6px);
    backdrop-filter: blur(12px);
}

.gantt-tooltip.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.gantt-tooltip-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 10px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--color-border-light, var(--color-border));
    line-height: 1.4;
}

.gantt-tooltip-row {
    font-size: 12px;
    color: var(--color-text-secondary);
    line-height: 1.8;
    display: flex;
    justify-content: space-between;
    gap: 12px;
}

.gantt-tooltip-label {
    font-weight: 600;
    color: var(--color-text-muted);
    flex-shrink: 0;
}

/* Dark theme tooltip */
[data-theme="dark"] .gantt-tooltip {
    background: var(--color-surface-alt);
    border-color: var(--color-border);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(16px);
}

/* ---- Skeleton Loading ---- */
.gantt-skeleton {
    padding: 0;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface);
    overflow: hidden;
}

.gantt-skeleton-header {
    height: 44px;
    padding: 8px 16px;
    background: var(--gantt-header-bg);
    border-bottom: 1px solid var(--color-border);
}

.gantt-skeleton-row {
    display: flex;
    align-items: center;
    height: 44px;
    padding: 0;
    border-bottom: 1px solid var(--color-border-light);
}

.gantt-skeleton-label {
    width: 200px;
    min-width: 200px;
    padding: 0 14px;
    border-right: 2px solid var(--color-border);
}

.gantt-skeleton-bar {
    flex: 1;
    padding: 0 16px;
}

/* ---- Export overlay ---- */
.gantt-export-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gantt-export-overlay-text {
    background: var(--color-surface);
    padding: 20px 32px;
    border-radius: var(--radius-md);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
}

[data-theme="dark"] .gantt-export-overlay {
    background: rgba(0, 0, 0, 0.6);
}

/* ---- Critical Path Label Row Highlight ---- */
.gantt-label-row.gantt-label--critical {
    background: rgba(239, 68, 68, 0.06);
    border-left: 3px solid var(--gantt-critical-color);
    padding-left: 11px;
}

[data-theme="dark"] .gantt-label-row.gantt-label--critical {
    background: rgba(248, 113, 113, 0.08);
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
    .gantt-toolbar {
        gap: 10px;
        padding: 8px 12px;
    }

    .gantt-legend {
        gap: 10px;
    }

    .gantt-legend-label {
        font-size: 11px;
    }

    .gantt-controls {
        gap: 8px;
    }

    .timeline-controls {
        gap: 8px;
    }

    .timeline-date-range {
        flex-wrap: wrap;
        gap: 6px;
    }

    .timeline-date-input {
        min-width: 120px;
    }

    .timeline-presets {
        flex-wrap: wrap;
    }
}

@media (max-width: 640px) {
    .timeline-filters {
        width: 100%;
        flex-wrap: wrap;
    }

    .timeline-filter-select {
        min-width: 140px;
    }

    .gantt-labels {
        width: 140px;
        min-width: 140px;
    }

    .gantt-label-name {
        font-size: 11px;
    }

    .gantt-label-supplier {
        font-size: 10px;
    }

    .gantt-toolbar {
        flex-direction: column;
        align-items: flex-start;
    }

    .gantt-legend {
        gap: 8px;
    }

    .gantt-controls {
        align-self: flex-end;
    }

    .timeline-controls {
        flex-direction: column;
        align-items: flex-start;
    }

    .timeline-zoom {
        flex-wrap: wrap;
    }

    .timeline-date-range {
        width: 100%;
    }

    .timeline-date-input {
        flex: 1;
        min-width: 0;
    }

    .timeline-presets {
        width: 100%;
        flex-wrap: wrap;
    }
}

@media (prefers-reduced-motion: reduce) {
    .gantt-today-dot {
        animation: none;
    }

    .gantt-bar.gantt-bar--critical {
        animation: none;
    }

    [data-theme="dark"] .gantt-today-dot {
        animation: none;
    }

    [data-theme="dark"] .gantt-bar.gantt-bar--critical {
        animation: none;
    }
}