/* ==========================================================
   Mini Project MUT — Clean & Modern Timeline Styles
   Designed for clarity, aesthetics, and complete task details
   ========================================================== */

:root {
    --gantt-row-height: 42px;
    --gantt-header-height: 56px;
    --gantt-border: var(--border-color, #E2E8F0);
    --gantt-bg: var(--bg-surface, #FFFFFF);
    --gantt-header-bg: var(--bg-main, #F8FAFC);
    --gantt-hover-bg: rgba(99, 102, 241, 0.05);
    --gantt-phase-bg: rgba(248, 250, 252, 0.9);
    --gantt-weekend-bg: rgba(241, 245, 249, 0.55);
    --gantt-today-line: #EF4444;
}

[data-theme="dark"] {
    --gantt-header-bg: #0F172A;
    --gantt-hover-bg: rgba(99, 102, 241, 0.12);
    --gantt-phase-bg: rgba(30, 41, 59, 0.7);
    --gantt-weekend-bg: rgba(15, 23, 42, 0.5);
    --gantt-today-line: #F87171;
}

/* --- Viewport Layout --- */
.timeline-viewport {
    display: flex;
    flex-direction: column;
    min-height: calc(100vh - 84px);
    gap: 0.75rem;
}

/* --- Compact & Clean Top Header Bar --- */
.timeline-header-bar {
    background: var(--bg-card, #FFFFFF);
    border: 1px solid var(--gantt-border);
    border-radius: 14px;
    padding: 0.6rem 1rem;
    box-shadow: 0 2px 8px -2px rgba(0, 0, 0, 0.04);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.75rem;
    flex-shrink: 0;
}

.timeline-brand-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, #6366F1, #8B5CF6);
    color: #FFFFFF;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    box-shadow: 0 3px 8px rgba(99, 102, 241, 0.3);
    flex-shrink: 0;
}

.timeline-kpi-chips {
    gap: 0.5rem;
}

.kpi-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-surface, #FFFFFF);
    border: 1px solid var(--gantt-border, #E2E8F0);
    padding: 0.28rem 0.65rem;
    border-radius: 9px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.kpi-chip:hover {
    transform: translateY(-1px);
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.06);
}

.kpi-chip-icon {
    width: 26px;
    height: 26px;
    border-radius: 7px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.82rem;
    flex-shrink: 0;
}

.kpi-chip-text {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
}

.kpi-chip-label {
    font-size: 0.64rem;
    font-weight: 600;
    color: var(--text-muted, #64748B);
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.kpi-chip-val {
    font-size: 0.76rem;
    color: var(--text-main, #0F172A);
}

.timeline-meta-text {
    font-size: 0.74rem;
    color: var(--text-muted, #64748B);
    display: flex;
    align-items: center;
    gap: 0.4rem;
    margin-top: 2px;
}

.timeline-meta-text strong {
    color: var(--text-main, #0F172A);
}

.meta-dot {
    color: var(--text-light, #CBD5E1);
}

/* --- View Switcher (Segmented Tabs) --- */
.view-switcher-group {
    background: var(--bg-main, #F1F5F9);
    padding: 3px;
    border-radius: 10px;
    display: inline-flex;
    gap: 3px;
    border: 1px solid var(--gantt-border);
}

.view-switcher-group .btn {
    border: none;
    font-size: 0.78rem;
    font-weight: 600;
    padding: 0.3rem 0.75rem;
    border-radius: 8px;
    color: var(--text-muted, #64748B);
    background: transparent;
    transition: all 0.2s ease;
}

.view-switcher-group .btn.active {
    background: var(--bg-surface, #FFFFFF);
    color: var(--primary, #6366F1);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}

/* --- Main Workspace Card --- */
.timeline-main-card {
    background: var(--bg-card, #FFFFFF);
    border: 1px solid var(--gantt-border);
    border-radius: 14px;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.04);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 520px;
    min-height: 420px;
    flex-shrink: 0;
    position: relative;
}

.timeline-body-area {
    display: flex;
    flex: 1 1 auto;
    min-height: 0;
    position: relative;
    overflow: hidden;
}

/* --- Left Pane (Tree / Task List) --- */
.gantt-left-pane {
    width: 220px;
    min-width: 190px;
    max-width: 260px;
    flex-shrink: 0;
    border-right: 2px solid var(--gantt-border);
    display: flex;
    flex-direction: column;
    background: var(--gantt-bg);
    z-index: 10;
    box-shadow: 2px 0 8px rgba(0, 0, 0, 0.02);
}

.gantt-left-header {
    height: var(--gantt-header-height);
    background: var(--gantt-header-bg);
    border-bottom: 2px solid var(--gantt-border);
    display: flex;
    align-items: center;
    padding: 0 0.85rem;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--text-muted, #64748B);
    flex-shrink: 0;
    user-select: none;
    letter-spacing: 0.02em;
}

.gantt-left-body {
    flex-grow: 1;
    overflow-y: hidden; /* vertical scroll sync with right */
    overflow-x: auto;
}

/* Left Rows */
.gantt-tree-row {
    height: var(--gantt-row-height);
    border-bottom: 1px solid var(--gantt-border);
    display: flex;
    align-items: center;
    padding: 0 0.5rem;
    transition: background-color 0.15s ease;
    cursor: pointer;
    box-sizing: border-box;
}

.gantt-tree-row:hover,
.gantt-tree-row.is-hovered {
    background-color: var(--gantt-hover-bg);
}

.gantt-tree-row.is-active {
    background-color: rgba(99, 102, 241, 0.09) !important;
    border-left: 3px solid var(--primary, #6366F1);
}

/* Phase Row */
.gantt-phase-row {
    background: var(--gantt-phase-bg);
    font-weight: 600;
    border-bottom: 1px solid var(--gantt-border);
    border-left: 4px solid var(--primary, #6366F1);
    cursor: pointer;
    user-select: none;
}

.gantt-phase-row:hover {
    background: rgba(99, 102, 241, 0.07);
}

.gantt-toggle-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border-radius: 5px;
    transition: transform 0.2s ease;
    color: var(--text-muted);
    margin-right: 4px;
}

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

/* Left Columns */
.gantt-col-name {
    flex: 1 1 auto;
    min-width: 0;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    overflow: hidden;
    text-overflow: ellipsis;
    padding-right: 0.5rem;
}

.gantt-task-indent {
    color: var(--text-light, #94A3B8);
    font-size: 0.75rem;
    flex-shrink: 0;
}

.gantt-code-badge {
    font-family: 'JetBrains Mono', Consolas, monospace;
    font-size: 0.68rem;
    font-weight: 600;
    padding: 0.1rem 0.35rem;
    border-radius: 5px;
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary, #6366F1);
    flex-shrink: 0;
}

.gantt-col-status {
    width: 88px;
    flex-shrink: 0;
    text-align: center;
    padding: 0 0.25rem;
}

.gantt-col-assignees {
    width: 65px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gantt-col-duration {
    width: 50px;
    flex-shrink: 0;
    text-align: right;
    font-weight: 600;
    font-size: 0.74rem;
    color: var(--text-muted);
    padding-right: 0.4rem;
}

/* --- Right Pane (Timeline Chart) --- */
.gantt-right-pane {
    flex-grow: 1;
    overflow: auto;
    position: relative;
    background: var(--gantt-bg);
}

.gantt-right-pane::-webkit-scrollbar,
.gantt-left-body::-webkit-scrollbar,
.task-detail-drawer::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

.gantt-right-pane::-webkit-scrollbar-thumb,
.gantt-left-body::-webkit-scrollbar-thumb,
.task-detail-drawer::-webkit-scrollbar-thumb {
    background: rgba(148, 163, 184, 0.35);
    border-radius: 3px;
}

/* Timeline Header */
.gantt-timeline-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: var(--gantt-header-bg);
    border-bottom: 2px solid var(--gantt-border);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.02);
    height: var(--gantt-header-height);
}

.gantt-month-row {
    display: flex;
    height: 28px;
    border-bottom: 1px solid var(--gantt-border);
    font-weight: 700;
    font-size: 0.76rem;
    color: var(--text-main, #0F172A);
}

.gantt-month-cell {
    padding: 0 0.6rem;
    display: flex;
    align-items: center;
    border-right: 1px solid var(--gantt-border);
    background: var(--gantt-header-bg);
}

.gantt-days-row {
    display: flex;
    height: 28px;
    font-size: 0.7rem;
}

.gantt-day-cell {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-right: 1px solid var(--gantt-border);
    color: var(--text-muted, #64748B);
    line-height: 1.1;
    user-select: none;
}

.gantt-day-cell.weekend {
    background: var(--gantt-weekend-bg);
    color: var(--danger, #EF4444);
    opacity: 0.85;
}

.gantt-day-cell.today {
    background: rgba(99, 102, 241, 0.14);
    color: var(--primary, #6366F1);
    font-weight: 800;
}

/* Timeline Body */
.gantt-timeline-body {
    position: relative;
}

.gantt-timeline-row {
    height: var(--gantt-row-height);
    border-bottom: 1px solid var(--gantt-border);
    position: relative;
    display: flex;
    align-items: center;
    box-sizing: border-box;
    transition: background-color 0.15s ease;
}

.gantt-timeline-row:hover,
.gantt-timeline-row.is-hovered {
    background-color: var(--gantt-hover-bg);
}

.gantt-timeline-row.is-phase {
    background: var(--gantt-phase-bg);
}

.gantt-grid-cell {
    height: 100%;
    border-right: 1px solid var(--gantt-border);
    flex-shrink: 0;
    box-sizing: border-box;
}

.gantt-grid-cell.weekend {
    background: var(--gantt-weekend-bg);
}

/* Task Bar */
.gantt-task-bar {
    position: absolute;
    height: 26px;
    border-radius: 7px;
    color: #FFFFFF;
    font-size: 0.74rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    padding: 0 0.5rem;
    white-space: nowrap;
    overflow: hidden;
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
    z-index: 5;
    user-select: none;
}

.gantt-task-bar:hover {
    transform: translateY(-1px);
    box-shadow: 0 5px 12px rgba(0, 0, 0, 0.18);
    z-index: 10;
}

.gantt-task-progress {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: rgba(255, 255, 255, 0.25);
    border-radius: 7px 0 0 7px;
    pointer-events: none;
}

.gantt-task-bar-content {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 0.35rem;
    width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.gantt-phase-summary-bar {
    position: absolute;
    height: 12px;
    border-radius: 6px;
    border: 1px dashed var(--primary, #6366F1);
    z-index: 4;
    pointer-events: none;
}

/* Milestone */
.gantt-milestone-wrapper {
    position: absolute;
    z-index: 6;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    cursor: pointer;
    transition: transform 0.2s ease;
}

.gantt-milestone-wrapper:hover {
    transform: scale(1.12);
    z-index: 10;
}

.gantt-milestone-diamond {
    width: 22px;
    height: 22px;
    background: linear-gradient(135deg, #EF4444, #DC2626);
    transform: rotate(45deg);
    border-radius: 4px;
    box-shadow: 0 3px 8px rgba(239, 68, 68, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid #FFFFFF;
}

.gantt-milestone-diamond i {
    transform: rotate(-45deg);
    color: #FFFFFF;
    font-size: 0.62rem;
}

.gantt-milestone-label {
    font-size: 0.7rem;
    font-weight: 700;
    color: #DC2626;
    background: rgba(254, 226, 226, 0.95);
    padding: 0.1rem 0.4rem;
    border-radius: 4px;
    border: 1px solid rgba(239, 68, 68, 0.3);
    white-space: nowrap;
}

/* Today Line */
.gantt-today-line {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--gantt-today-line);
    z-index: 15;
    pointer-events: none;
    box-shadow: 0 0 6px rgba(239, 68, 68, 0.5);
}

.gantt-today-badge {
    position: sticky;
    top: 28px;
    background: var(--danger, #EF4444);
    color: #FFFFFF;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 1px 5px;
    border-radius: 4px;
    transform: translateX(-50%);
    display: inline-flex;
    align-items: center;
    gap: 2px;
}

/* --- Task Detail Modal Popup Styles --- */
#taskDetailModal .modal-content {
    border: none;
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.18);
    overflow: hidden;
}

#taskDetailModal .modal-header {
    border-top-left-radius: 16px;
    border-top-right-radius: 16px;
}

#taskDetailModal .card {
    background: var(--bg-surface, #FFFFFF);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

#taskDetailModal .card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.modal-status-dot-pulse {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 0 rgba(0, 0, 0, 0.4);
    animation: statusPulse 1.8s infinite;
}

@keyframes statusPulse {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.5); }
    70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(99, 102, 241, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(99, 102, 241, 0); }
}

/* --- Full Details Table View --- */
.timeline-full-table-view {
    display: none;
    flex: 1 1 auto;
    min-height: 0;
    overflow: auto;
    background: var(--bg-surface);
}

.timeline-full-table-view.is-active {
    display: block;
}

.details-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 0.8rem;
    white-space: nowrap;
}

.details-table th {
    position: sticky;
    top: 0;
    background: var(--gantt-header-bg);
    color: var(--text-muted);
    font-weight: 700;
    padding: 0.75rem 0.85rem;
    border-bottom: 2px solid var(--gantt-border);
    border-right: 1px solid var(--gantt-border);
    z-index: 10;
}

.details-table td {
    padding: 0.6rem 0.85rem;
    border-bottom: 1px solid var(--gantt-border);
    border-right: 1px solid var(--gantt-border);
    vertical-align: middle;
}

.details-table tr:hover td {
    background-color: var(--gantt-hover-bg);
}

/* --- Compact Bottom Legend --- */
.gantt-bottom-legend {
    height: 32px;
    background: var(--gantt-header-bg);
    border-top: 1px solid var(--gantt-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1rem;
    font-size: 0.73rem;
    flex-shrink: 0;
    user-select: none;
}

/* Badges & Pills */
.gantt-status-pill {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.68rem;
    font-weight: 600;
    padding: 0.15rem 0.45rem;
    border-radius: 20px;
    white-space: nowrap;
}

.gantt-status-dot {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background-color: currentColor;
}

.gantt-avatar-group {
    display: inline-flex;
    align-items: center;
}

.gantt-avatar-circle {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: linear-gradient(135deg, #6366F1, #8B5CF6);
    color: #FFFFFF;
    font-size: 0.62rem;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--gantt-bg);
    margin-left: -5px;
}

.gantt-avatar-circle:first-child {
    margin-left: 0;
}

/* Tooltip */
.gantt-tooltip {
    position: fixed;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(12px);
    color: #F8FAFC;
    padding: 0.75rem 0.9rem;
    border-radius: 10px;
    font-size: 0.78rem;
    pointer-events: none;
    z-index: 1050;
    box-shadow: 0 15px 25px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.12);
    max-width: 300px;
    display: none;
    line-height: 1.4;
}

/* Fullscreen Mode */
.timeline-main-card.is-fullscreen {
    position: fixed !important;
    inset: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    z-index: 99999 !important;
    border-radius: 0 !important;
    margin: 0 !important;
    border: none !important;
}

/* --- Team Members Section Below Calendar --- */
.timeline-team-container {
    flex-shrink: 0;
    margin-bottom: 2rem;
}

.team-member-card {
    background: var(--bg-card, #FFFFFF);
    border: 1px solid var(--gantt-border);
    border-radius: 14px;
    padding: 1.15rem;
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
}

.team-member-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.07);
    border-color: rgba(99, 102, 241, 0.4);
}

.member-avatar {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: linear-gradient(135deg, #6366F1, #8B5CF6);
    color: #FFFFFF;
    font-weight: 700;
    font-size: 1.15rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 4px 10px rgba(99, 102, 241, 0.3);
}

.member-info-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    font-size: 0.8rem;
}

.info-row {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.info-label {
    width: 105px;
    flex-shrink: 0;
    color: var(--text-muted, #64748B);
    font-weight: 600;
}

.info-value {
    flex-grow: 1;
    word-break: break-word;
}

.member-tasks-box {
    margin-top: auto;
    padding-top: 0.85rem;
    border-top: 1px dashed var(--gantt-border);
}