/* Task Completion Animation */

/* Completed task state */
.clean-tile.task.completed {
    position: relative;
    overflow: hidden;
    transition: all 0.5s ease-out;
}

/* Strikethrough effect for completed tasks */
.clean-tile.task.completed .tile-text {
    position: relative;
    opacity: 0.5;
    transition: opacity 0.3s ease-out;
}

.clean-tile.task.completed .tile-text::after {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 100%;
    height: 2px;
    background-color: #6b7280;
    transform: translateY(-50%) scaleX(0);
    transform-origin: left center;
    animation: strikethrough 0.4s ease-out forwards;
}

@keyframes strikethrough {
    to {
        transform: translateY(-50%) scaleX(1);
    }
}

/* Fade the entire tile */
.clean-tile.task.completed {
    animation: fadeTask 0.5s ease-out 0.4s forwards;
}

@keyframes fadeTask {
    to {
        opacity: 0.3;
    }
}

/* Collapse and vanish animation */
.clean-tile.task.completed.vanishing {
    animation: collapseAndVanish 0.6s ease-out forwards;
    pointer-events: none;
}

@keyframes collapseAndVanish {
    0% {
        opacity: 0.3;
        transform: scaleY(1) translateY(0);
        max-height: 150px;
        margin-bottom: 0.5rem;
    }
    50% {
        opacity: 0.1;
        transform: scaleY(0.5) translateY(-10px);
    }
    100% {
        opacity: 0;
        transform: scaleY(0) translateY(-20px);
        max-height: 0;
        margin-bottom: 0;
        padding-top: 0;
        padding-bottom: 0;
        border-width: 0;
    }
}

/* Completed visual indicators */
.clean-tile.task.completed .tile-header {
    opacity: 0.5;
}

.clean-tile.task.completed .tile-type {
    background-color: rgba(107, 114, 128, 0.2);
    color: #9ca3af;
}

.clean-tile.task.completed .tile-action-btn {
    opacity: 0.3;
    pointer-events: none;
}

/* Hide priority and metadata for completed tasks */
.clean-tile.task.completed .tile-priority,
.clean-tile.task.completed .tile-metadata {
    opacity: 0.3;
    transition: opacity 0.3s ease-out;
}

/* Check mark for completed tasks - centered with circle background */
.clean-tile.task.completed .tile-header::before {
    content: '\f00c'; /* Font Awesome check mark */
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%) scale(0);
    color: #ffffff;
    font-size: 1.5rem;
    width: 2.5rem;
    height: 2.5rem;
    background-color: #10b981;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: checkmarkPop 0.3s ease-out 0.2s forwards;
    z-index: 10;
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3);
}

@keyframes checkmarkPop {
    0% {
        transform: translate(-50%, -50%) scale(0);
    }
    60% {
        transform: translate(-50%, -50%) scale(1.2);
    }
    100% {
        transform: translate(-50%, -50%) scale(1);
    }
}

/* Position header relatively for centered checkmark */
.clean-tile.task.completed .tile-header {
    position: relative;
}

/* Completed task interaction states */
.clean-tile.task.completed:hover {
    background-color: rgba(31, 41, 55, 0.3);
    transform: none; /* Disable hover transform */
}

/* Remove vanished tiles from layout after animation */
.clean-tile.task.vanished {
    display: none;
}