/* ===== Train Section ===== */
.train-section {
    background: var(--neutral-layer-2);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    border: 1px solid var(--neutral-stroke-rest);
}

.train-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--neutral-stroke-rest);
}

.train-header-left {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.train-icon {
    font-size: 2rem;
    line-height: 1;
}

.train-name {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0 0 0.25rem 0;
    color: var(--neutral-foreground-rest);
}

.train-description {
    font-size: 0.9rem;
    color: var(--neutral-foreground-hint);
    margin: 0;
}

.train-header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.train-ship-date {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.9rem;
    color: var(--neutral-foreground-hint);
}

.calendar-icon {
    width: 16px;
    height: 16px;
    opacity: 0.7;
}

.train-release-count {
    font-size: 0.9rem;
    color: var(--neutral-foreground-hint);
    white-space: nowrap;
}

.train-releases {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1rem;
}

.train-empty {
    text-align: center;
    padding: 2rem;
    color: var(--neutral-foreground-hint);
}

.train-empty .empty-icon {
    font-size: 2.5rem;
    display: block;
    margin-bottom: 0.5rem;
}

/* ===== Compact Release Tile ===== */
.compact-release-tile {
    background: var(--neutral-layer-1);
    border-radius: 8px;
    padding: 1rem;
    border: 1px solid var(--neutral-stroke-rest);
    cursor: pointer;
    transition: border-color 0.2s, box-shadow 0.2s, transform 0.1s;
}

.compact-release-tile:hover {
    border-color: var(--accent-fill-rest);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transform: translateY(-1px);
}

.compact-tile-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.compact-tile-name {
    font-size: 1rem;
    font-weight: 600;
    margin: 0;
    color: var(--neutral-foreground-rest);
}

.security-badge {
    font-size: 1.1rem;
    line-height: 1;
}

.compact-tile-versions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--neutral-foreground-hint);
    margin-bottom: 0.75rem;
}

.version-text {
    font-family: 'Consolas', 'Monaco', monospace;
}

.version-separator {
    opacity: 0.5;
}

.compact-tile-stage {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
}

.stage-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.stage-engineering { background-color: #3b82f6; }
.stage-build { background-color: #f59e0b; }
.stage-validation { background-color: #8b5cf6; }
.stage-prepublish { background-color: #06b6d4; }
.stage-publish { background-color: #10b981; }

.stage-text {
    color: var(--neutral-foreground-hint);
}

/* ===== Compact Tile Move Action ===== */
.compact-tile-actions {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.move-action {
    position: relative;
}

.move-menu {
    position: absolute;
    top: 100%;
    right: 0;
    z-index: 100;
    min-width: 180px;
    background: var(--neutral-layer-floating);
    border: 1px solid var(--neutral-stroke-rest);
    border-radius: 6px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    padding: 0.25rem 0;
    margin-top: 0.25rem;
}

.move-menu-item {
    display: block;
    width: 100%;
    padding: 0.5rem 0.75rem;
    background: transparent;
    border: none;
    color: var(--neutral-foreground-rest);
    font-size: 0.85rem;
    text-align: left;
    cursor: pointer;
    transition: background 0.1s;
}

.move-menu-item:hover {
    background: var(--neutral-fill-stealth-hover);
}

/* ===== Train Detail Panel (Modal) ===== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 2rem;
}

.train-detail-panel {
    background: var(--neutral-layer-floating);
    border-radius: 12px;
    max-width: 700px;
    width: 100%;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--neutral-stroke-rest);
}

.panel-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0;
    color: var(--neutral-foreground-rest);
}

.panel-content {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
}

.panel-loading,
.panel-error {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 1rem;
    text-align: center;
    color: var(--neutral-foreground-hint);
}

.panel-error .error-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.form-section {
    margin-bottom: 2rem;
}

.form-section:last-child {
    margin-bottom: 0;
}

.assigned-releases-list,
.available-releases-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    max-height: 300px;
    overflow-y: auto;
    padding: 0.5rem;
    background: var(--neutral-layer-1);
    border-radius: 6px;
    border: 1px solid var(--neutral-stroke-rest);
}

.assigned-release-item,
.available-release-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem;
    background: var(--neutral-layer-2);
    border-radius: 6px;
    border: 1px solid var(--neutral-stroke-rest);
}

.release-item-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.release-item-name {
    font-weight: 600;
    color: var(--neutral-foreground-rest);
}

.release-item-versions {
    font-size: 0.85rem;
    color: var(--neutral-foreground-hint);
    font-family: 'Consolas', 'Monaco', monospace;
}

.empty-releases {
    text-align: center;
    padding: 2rem;
    color: var(--neutral-foreground-hint);
}

.empty-releases .empty-icon {
    font-size: 2.5rem;
    display: block;
    margin-bottom: 0.5rem;
}

.no-available-releases {
    color: var(--neutral-foreground-hint);
    font-style: italic;
    margin: 0;
}

.panel-footer {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    padding: 1.5rem;
    border-top: 1px solid var(--neutral-stroke-rest);
}

/* ===== Schedule Template Section (TrainDetailPanel) ===== */

.schedule-loading {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    color: var(--neutral-foreground-hint);
}

.empty-schedule {
    text-align: center;
    padding: 2rem;
    color: var(--neutral-foreground-hint);
}

.empty-schedule .empty-icon {
    font-size: 2.5rem;
    display: block;
    margin-bottom: 0.5rem;
}

/* Schedule Preview (create mode) */
.schedule-preview {
    background: var(--neutral-layer-1);
    border-radius: 6px;
    border: 1px solid var(--neutral-stroke-rest);
    padding: 1rem;
}

.schedule-preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.schedule-preview-label {
    font-size: 0.85rem;
    color: var(--neutral-foreground-hint);
    font-weight: 500;
}

.schedule-preview-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.schedule-preview-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0.75rem;
    background: var(--neutral-layer-2);
    border-radius: 4px;
    font-size: 0.9rem;
}

.preview-tminus {
    font-weight: 600;
    color: var(--accent-foreground-rest);
    font-family: 'Consolas', 'Monaco', monospace;
    min-width: 50px;
}

.preview-name {
    flex: 1;
    color: var(--neutral-foreground-rest);
}

.preview-duration {
    font-size: 0.8rem;
    color: var(--neutral-foreground-hint);
}

/* Schedule Customize (create mode inline editing) */
.schedule-customize {
    background: var(--neutral-layer-1);
    border-radius: 6px;
    border: 1px solid var(--accent-fill-rest);
    padding: 1rem;
}

.schedule-customize-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.schedule-customize-label {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--neutral-foreground-rest);
}

.schedule-customize-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.schedule-customize-item {
    background: var(--neutral-layer-2);
    border-radius: 6px;
    padding: 0.75rem;
    border: 1px solid var(--neutral-stroke-rest);
}

.customize-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.customize-item-fields {
    display: flex;
    gap: 0.75rem;
    align-items: flex-end;
}

/* ===== TrainScheduleSection Component ===== */

.train-schedule-section {
    border: 1px solid var(--neutral-stroke-rest);
    border-radius: 8px;
    background: var(--neutral-layer-1);
    overflow: hidden;
}

.schedule-section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    cursor: pointer;
    transition: background 0.15s;
}

.schedule-section-header:hover {
    background: var(--neutral-fill-stealth-hover);
}

.schedule-section-title-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.collapse-icon {
    font-size: 0.8rem;
    color: var(--neutral-foreground-hint);
    transition: transform 0.2s;
}

.collapse-icon.expanded {
    transform: rotate(90deg);
}

.schedule-template-badge {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--accent-foreground-rest);
    background: var(--accent-fill-rest);
    color: white;
    padding: 0.1rem 0.5rem;
    border-radius: 4px;
    margin-left: 0.5rem;
}

.schedule-activity-summary {
    font-size: 0.8rem;
    color: var(--neutral-foreground-hint);
}

.schedule-activities-list {
    border-top: 1px solid var(--neutral-stroke-rest);
}

.schedule-activity-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.6rem 1rem;
    border-bottom: 1px solid var(--neutral-stroke-rest);
    transition: background 0.15s;
}

.schedule-activity-row:last-child {
    border-bottom: none;
}

.schedule-activity-row:hover {
    background: var(--neutral-fill-stealth-hover);
}

.schedule-activity-row.activity-completed {
    opacity: 0.6;
}

.schedule-activity-row.activity-overdue {
    border-left: 3px solid #ef4444;
}

.schedule-activity-row.activity-upcoming {
    border-left: 3px solid #f59e0b;
}

.activity-complete-check {
    flex-shrink: 0;
    width: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.activity-done-icon {
    color: #10b981;
    font-weight: 700;
    font-size: 0.9rem;
}

.activity-pending-icon {
    color: var(--neutral-foreground-hint);
    font-size: 0.9rem;
}

.activity-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    min-width: 0;
}

.activity-name {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--neutral-foreground-rest);
}

.activity-name.completed {
    text-decoration: line-through;
    opacity: 0.7;
}

.activity-description {
    font-size: 0.8rem;
    color: var(--neutral-foreground-hint);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.activity-timing {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
}

.activity-tminus {
    font-weight: 600;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.8rem;
    color: var(--accent-foreground-rest);
}

.activity-due-date {
    font-size: 0.8rem;
    color: var(--neutral-foreground-hint);
}

.activity-duration {
    font-size: 0.75rem;
    color: var(--neutral-foreground-hint);
    opacity: 0.7;
}

.activity-row-actions {
    flex-shrink: 0;
}

.activity-edit-fields {
    flex: 1;
    display: flex;
    gap: 0.5rem;
    align-items: flex-end;
    flex-wrap: wrap;
}

.activity-edit-actions {
    display: flex;
    gap: 0.25rem;
}

.schedule-section-actions {
    display: flex;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-top: 1px solid var(--neutral-stroke-rest);
}

/* ===== Template Picker Dialog ===== */

.template-picker-dialog {
    background: var(--neutral-layer-floating);
    border-radius: 12px;
    padding: 2rem;
    max-width: 500px;
    width: 100%;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.template-picker-dialog h3 {
    margin: 0 0 1rem 0;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--neutral-foreground-rest);
}

.no-templates-message {
    color: var(--neutral-foreground-hint);
    font-size: 0.9rem;
    margin: 1rem 0;
}

.template-picker-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-height: 300px;
    overflow-y: auto;
    margin-bottom: 1.5rem;
}

.template-picker-item {
    padding: 0.75rem 1rem;
    border-radius: 6px;
    border: 2px solid var(--neutral-stroke-rest);
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s;
}

.template-picker-item:hover {
    border-color: var(--neutral-stroke-hover);
    background: var(--neutral-fill-stealth-hover);
}

.template-picker-item.selected {
    border-color: var(--accent-fill-rest);
    background: var(--accent-fill-rest);
    background: rgba(var(--accent-fill-rest-rgb, 0, 120, 212), 0.08);
}

.template-picker-item-info {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.template-picker-item-name {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--neutral-foreground-rest);
}

.template-picker-item-desc {
    font-size: 0.85rem;
    color: var(--neutral-foreground-hint);
}

.template-picker-item-meta {
    font-size: 0.8rem;
    color: var(--neutral-foreground-hint);
    opacity: 0.7;
}

/* ===== Save-as-Template Dialog ===== */

.save-template-dialog {
    background: var(--neutral-layer-floating);
    border-radius: 12px;
    padding: 2rem;
    max-width: 420px;
    width: 100%;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.save-template-dialog h3 {
    margin: 0 0 0.75rem 0;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--neutral-foreground-rest);
}

.save-template-dialog p {
    margin: 0 0 1.5rem 0;
    font-size: 0.9rem;
    line-height: 1.5;
    color: var(--neutral-foreground-hint);
}

.dialog-actions-vertical {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}