* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --success-color: #10b981;
    --danger-color: #ef4444;
    --bg-primary: #0f0f23;
    --bg-secondary: #1a1a2e;
    --bg-card: rgba(255, 255, 255, 0.05);
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --border-color: rgba(255, 255, 255, 0.1);
    --shadow-color: rgba(0, 0, 0, 0.3);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    --cat-personal: #8b5cf6;
    --cat-work: #3b82f6;
    --cat-shopping: #10b981;
    --cat-health: #ef4444;
    --cat-education: #f59e0b;
    --cat-finance: #06b6d4;
    --cat-other: #6b7280;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(102, 126, 234, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(118, 75, 162, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(240, 147, 251, 0.05) 0%, transparent 50%);
    min-height: 100vh;
    color: var(--text-primary);
    line-height: 1.6;
    position: relative;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 2px,
            rgba(255, 255, 255, 0.01) 2px,
            rgba(255, 255, 255, 0.01) 4px
        );
    pointer-events: none;
    z-index: 1;
}

.container {
    width: 100%;
    margin: 0;
    padding: 1rem 2rem;
    position: relative;
    z-index: 2;
}

.header {
    text-align: center;
    margin-bottom: 1rem;
    animation: fadeInDown 0.6s ease-out;
}

.app-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    letter-spacing: -0.02em;
}

.gradient-text {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
}

.app-subtitle {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 400;
}

.stats-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    margin-bottom: 1rem;
    animation: fadeIn 0.8s ease-out 0.2s both;
    width: 100%;
}

.stat-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    min-width: 0;
    flex: 1;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--primary-gradient);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}

.stat-card:hover {
    transform: translateY(-2px);
    border-color: rgba(102, 126, 234, 0.3);
}

.stat-card:hover::before {
    opacity: 0.05;
}

.stat-value {
    display: block;
    font-size: 1.25rem;
    font-weight: 600;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
}

.stat-label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.75rem;
    margin-top: 0.125rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.input-container {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    animation: fadeIn 0.8s ease-out 0.3s both;
    position: relative;
    z-index: 500;
    width: 100%;
}

.task-input {
    flex: 1;
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 0.625rem 1rem;
    font-size: 0.875rem;
    color: var(--text-primary);
    transition: var(--transition);
    font-family: inherit;
}

.task-input::placeholder {
    color: var(--text-secondary);
}

.task-input:focus {
    outline: none;
    border-color: rgba(102, 126, 234, 0.5);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.add-btn {
    background: var(--primary-gradient);
    border: none;
    border-radius: 10px;
    padding: 0.625rem;
    color: white;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.add-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.add-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

.add-btn:active::before {
    width: 300px;
    height: 300px;
}

.filter-container {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 0.75rem 0.75rem;
    margin: 0 0 0.5rem 0;
    width: 100%;
    display: flex;
    gap: 0.375rem;
    align-items: center;
    flex-wrap: wrap;
    box-sizing: border-box;
}

.filter-container.initial-load {
    animation: fadeIn 0.8s ease-out 0.4s both;
}

.filter-divider {
    width: 1px;
    height: 20px;
    background: var(--border-color);
    margin: 0 0.375rem;
}

.filter-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.375rem 0.75rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.75rem;
    font-weight: 500;
    font-family: inherit;
}

.filter-btn:hover {
    border-color: rgba(102, 126, 234, 0.5);
    color: var(--text-primary);
}

.filter-btn.active {
    background: var(--primary-gradient);
    border-color: transparent;
    color: white;
}

.filter-btn.ghost-filter {
    padding: 0.375rem 0.5rem;
    color: #a855f7;
    border-color: rgba(168, 85, 247, 0.3);
}

.filter-btn.ghost-filter:hover {
    border-color: #a855f7;
    background: rgba(168, 85, 247, 0.1);
}

.filter-btn.ghost-filter.active {
    background: #a855f7;
    border-color: #a855f7;
    color: white;
}

.filter-btn.category-filter[data-category="personal"] {
    border-color: var(--cat-personal);
    color: var(--cat-personal);
}
.filter-btn.category-filter[data-category="work"] {
    border-color: var(--cat-work);
    color: var(--cat-work);
}
.filter-btn.category-filter[data-category="shopping"] {
    border-color: var(--cat-shopping);
    color: var(--cat-shopping);
}
.filter-btn.category-filter[data-category="health"] {
    border-color: var(--cat-health);
    color: var(--cat-health);
}
.filter-btn.category-filter[data-category="education"] {
    border-color: var(--cat-education);
    color: var(--cat-education);
}
.filter-btn.category-filter[data-category="finance"] {
    border-color: var(--cat-finance);
    color: var(--cat-finance);
}
.filter-btn.category-filter[data-category="other"] {
    border-color: var(--cat-other);
    color: var(--cat-other);
}


.tasks-wrapper {
    display: grid;
    grid-template-columns: minmax(320px, 2fr) minmax(240px, 1fr) minmax(240px, 1fr);
    gap: 1rem;
    width: 100%;
    margin: 0;
    align-items: start;
    animation: fadeIn 0.8s ease-out 0.5s both;
}

.tasks-column {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.column-header {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 0.02em;
    text-transform: uppercase;
    padding: 0 0.25rem;
}

.tasks-container {
    min-height: 200px;
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    padding: 1rem;
}

.tasks-list {
    padding: 0 0 1rem 0;
}

.starred-container,
.followup-container {
    width: 100%;
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem;
    height: fit-content;
    min-height: 200px;
}

.tasks-header,
.starred-header,
.followup-header {
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.tasks-title,
.starred-title,
.followup-title {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.starred-tasks,
.followup-tasks {
    min-height: 150px;
}

.starred-tasks .empty-state,
.followup-tasks .empty-state {
    padding: 1.5rem;
}

.starred-tasks .empty-state p,
.followup-tasks .empty-state p {
    font-size: 0.75rem;
}

.move-to-bottom-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.375rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}

.move-to-bottom-btn:hover {
    border-color: rgba(102, 126, 234, 0.5);
    color: var(--text-primary);
    background: rgba(102, 126, 234, 0.1);
}

.move-to-bottom-btn:active {
    transform: scale(0.95);
}

.move-to-bottom-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.move-to-bottom-btn:disabled:hover {
    border-color: var(--border-color);
    color: var(--text-secondary);
    background: transparent;
}

.empty-state {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
}

.empty-state svg {
    margin-bottom: 1rem;
}

.empty-state p {
    font-size: 0.875rem;
}

.task-item {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 0.75rem 1rem;
    margin-bottom: 0.5rem;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
    transition: var(--transition);
    animation: slideIn 0.3s ease-out;
    position: relative;
    overflow: hidden;
    cursor: move;
}

.task-main-wrapper {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
}

.task-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--primary-gradient);
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.task-item:hover {
    transform: translateX(4px);
    border-color: rgba(102, 126, 234, 0.3);
}

.task-item:hover::before {
    transform: scaleY(1);
}

.task-item.completed {
    opacity: 0.7;
}

.task-item.completed .task-text {
    color: var(--text-secondary);
    position: relative;
}

.task-item.completed .task-text::after {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 100%;
    height: 2px;
    background: var(--text-secondary);
    transform: scaleX(1);
    transform-origin: left center;
}

.task-item.completed.animating .task-text::after {
    animation: strikethrough 1s ease-out forwards;
}

@keyframes strikethrough {
    from {
        transform: scaleX(0);
    }
    to {
        transform: scaleX(1);
    }
}

.task-item.completing {
    animation: fadeOutSlide 1s ease-out forwards;
}

@keyframes fadeOutSlide {
    0% {
        opacity: 0.7;
        transform: translateX(0);
        max-height: 100px;
    }
    50% {
        opacity: 0.3;
        transform: translateX(20px);
    }
    100% {
        opacity: 0;
        transform: translateX(50px);
        max-height: 0;
        padding: 0;
        margin-bottom: 0;
        border-width: 0;
    }
}

.task-checkbox {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    flex-shrink: 0;
    background: transparent;
}

.task-checkbox:hover {
    border-color: rgba(102, 126, 234, 0.5);
}

.task-checkbox.checked {
    background: var(--primary-gradient);
    border-color: transparent;
}

.task-checkbox.checked::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 10px;
    height: 7px;
    border-left: 2px solid white;
    border-bottom: 2px solid white;
    transform: translate(-50%, -60%) rotate(-45deg);
}

.task-text {
    flex: 1;
    font-size: 0.875rem;
    color: var(--text-primary);
    transition: var(--transition);
    word-break: break-word;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    position: relative;
}

.subtasks-wrapper {
    margin-top: 0.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    width: 100%;
    opacity: 0.97;
}

.subtask-toggle-btn {
    padding: 0.375rem;
}

.subtask-toggle-btn svg {
    transition: var(--transition);
}

.subtask-toggle-btn.is-open svg {
    transform: rotate(180deg);
}

.subtasks-list {
    display: grid;
    gap: 0.35rem;
    padding-left: 0.25rem;
}

.subtasks-list.closed {
    display: none;
}

.subtask-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.25rem 0.45rem;
    background: rgba(255, 255, 255, 0.04);
}

.subtask-main-label {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.78rem;
    color: var(--text-primary);
    word-break: break-word;
    width: 100%;
}

.subtask-item.completed .subtask-main-label {
    opacity: 0.6;
    text-decoration: line-through;
}

.subtask-checkbox {
    width: 14px;
    height: 14px;
    accent-color: var(--success-color);
    cursor: pointer;
}

.subtask-delete-btn {
    width: 18px;
    height: 18px;
    border-radius: 4px;
    border: 1px solid transparent;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
}

.subtask-delete-btn:hover {
    border-color: rgba(239, 68, 68, 0.5);
    color: var(--danger-color);
}

.subtask-add-row {
    display: flex;
    gap: 0.35rem;
}

.subtask-input {
    flex: 1;
    min-width: 0;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.25rem 0.45rem;
    color: var(--text-primary);
    font-size: 0.75rem;
    font-family: inherit;
}

.subtask-input:focus {
    outline: none;
    border-color: rgba(102, 126, 234, 0.5);
}

.subtask-input::placeholder {
    color: var(--text-secondary);
    opacity: 0.8;
}

.add-subtask-btn {
    flex-shrink: 0;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.25rem 0.5rem;
    color: var(--text-secondary);
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
}

.add-subtask-btn:hover {
    color: var(--text-primary);
    border-color: rgba(102, 126, 234, 0.5);
}

.hidden-indicator {
    display: inline-flex;
    align-items: center;
    color: #a855f7;
    opacity: 0.7;
    flex-shrink: 0;
}

.hidden-indicator svg {
    width: 16px;
    height: 16px;
}

.task-actions {
    display: none;
    gap: 0.5rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.task-item:hover .task-actions {
    display: flex;
    opacity: 1;
    pointer-events: auto;
}

.task-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.375rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}

.task-btn:hover {
    color: var(--text-primary);
}

.task-btn.edit:hover {
    border-color: rgba(102, 126, 234, 0.5);
    color: #667eea;
}

.task-btn.delete:hover {
    border-color: rgba(239, 68, 68, 0.5);
    color: var(--danger-color);
}

.task-btn.calendar:hover {
    border-color: rgba(6, 182, 212, 0.5);
    color: var(--cat-finance);
}

.task-btn.calendar.has-date {
    color: var(--cat-finance);
    border-color: var(--cat-finance);
}

.task-btn.ghost:hover {
    border-color: rgba(168, 85, 247, 0.5);
    color: #a855f7;
}

.task-btn.ghost.has-date {
    color: #a855f7;
    border-color: #a855f7;
    background: rgba(168, 85, 247, 0.1);
}

.task-btn.followup svg {
    transform: scaleY(-1);
}

.task-btn.followup:hover {
    border-color: rgba(16, 185, 129, 0.5);
    color: #10b981;
}

.task-btn.followup.is-followup {
    color: #10b981;
    border-color: #10b981;
    background: rgba(16, 185, 129, 0.1);
}

.task-btn.star:hover {
    border-color: rgba(250, 204, 21, 0.5);
    color: #facc15;
}

.task-btn.star.is-starred {
    color: #facc15;
    border-color: #facc15;
    background: rgba(250, 204, 21, 0.1);
}

.task-btn.star.is-starred svg {
    fill: currentColor;
}

.date-picker-wrapper,
.ghost-picker-wrapper {
    position: relative;
    display: inline-flex;
    align-items: center;
}

.task-date-picker {
    position: absolute;
    opacity: 0;
    width: 1px;
    height: 1px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.clear-container {
    margin-top: 2rem;
    text-align: center;
    animation: fadeIn 0.3s ease-out;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.clear-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.5rem 1rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.75rem;
    font-weight: 500;
    font-family: inherit;
}

.clear-btn:hover {
    border-color: rgba(239, 68, 68, 0.5);
    color: var(--danger-color);
}

.edit-input {
    flex: 1;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.5);
    border-radius: 8px;
    padding: 0.5rem 1rem;
    font-size: 1rem;
    color: var(--text-primary);
    font-family: inherit;
}

.edit-input:focus {
    outline: none;
    border-color: #667eea;
    background: rgba(255, 255, 255, 0.15);
}

.category-select-wrapper {
    position: relative;
    min-width: 150px;
    z-index: 100;
}

.category-select-button {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 0.625rem 1rem;
    font-size: 0.875rem;
    color: var(--text-primary);
    transition: var(--transition);
    font-family: inherit;
    cursor: pointer;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.category-select-button:hover {
    border-color: rgba(102, 126, 234, 0.5);
    background: rgba(255, 255, 255, 0.08);
}

.category-select-button:focus {
    outline: none;
    border-color: rgba(102, 126, 234, 0.5);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.category-dropdown {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
    max-height: 200px;
    overflow-y: auto;
    z-index: 99999;
    display: none;
    padding: 6px;
}

.category-dropdown.show {
    display: block;
}

.category-item {
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.875rem;
    font-weight: 500;
    user-select: none;
}

.category-item:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(2px);
}

.category-item.selected {
    background: rgba(255, 255, 255, 0.15);
    font-weight: 600;
}

.category-item-name {
    display: inline-block;
}

.category-badge {
    display: inline-block;
    padding: 0.125rem 0.5rem;
    border-radius: 15px;
    font-size: 0.625rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-left: 4px;
}

.category-badge:first-of-type {
    margin-left: auto;
}

.category-badge[data-category="personal"] {
    background: rgba(139, 92, 246, 0.2);
    color: var(--cat-personal);
}
.category-badge[data-category="work"] {
    background: rgba(59, 130, 246, 0.2);
    color: var(--cat-work);
}
.category-badge[data-category="shopping"] {
    background: rgba(16, 185, 129, 0.2);
    color: var(--cat-shopping);
}
.category-badge[data-category="health"] {
    background: rgba(239, 68, 68, 0.2);
    color: var(--cat-health);
}
.category-badge[data-category="education"] {
    background: rgba(245, 158, 11, 0.2);
    color: var(--cat-education);
}
.category-badge[data-category="finance"] {
    background: rgba(6, 182, 212, 0.2);
    color: var(--cat-finance);
}
.category-badge[data-category="other"] {
    background: rgba(107, 114, 128, 0.2);
    color: var(--cat-other);
}

.add-category-btn,
.edit-category-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.375rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: 0.375rem;
}

.add-category-btn:hover {
    border-color: rgba(102, 126, 234, 0.5);
    color: var(--text-primary);
    background: rgba(102, 126, 234, 0.1);
}

.edit-category-btn:hover {
    border-color: rgba(245, 158, 11, 0.5);
    color: var(--text-primary);
    background: rgba(245, 158, 11, 0.1);
}

.edit-category-btn.active {
    border-color: var(--cat-education);
    color: var(--cat-education);
    background: rgba(245, 158, 11, 0.1);
}

.category-delete-btn {
    position: absolute;
    top: -8px;
    right: -8px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--danger-color);
    border: 2px solid var(--bg-primary);
    color: white;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    transition: var(--transition);
    z-index: 10;
}

.category-delete-btn:hover {
    transform: scale(1.1);
    background: #dc2626;
}

.edit-mode .custom-category-filter,
.edit-mode .default-category-filter {
    position: relative;
}

.edit-mode .custom-category-filter .category-delete-btn,
.edit-mode .default-category-filter .category-delete-btn {
    display: flex;
}

.edit-mode .category-filter {
    animation: shake 0.3s ease-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-2px); }
    75% { transform: translateX(2px); }
}

.category-filter {
    cursor: move;
    user-select: none;
    transition: var(--transition);
}

.category-filter.dragging {
    opacity: 0.5;
    transform: scale(0.95);
    cursor: grabbing;
}

.category-filter.drag-over {
    transform: translateX(5px);
    border-color: var(--primary-gradient);
    box-shadow: 0 0 10px rgba(102, 126, 234, 0.3);
}

.category-filter:not(.dragging):hover {
    cursor: pointer;
}

.edit-mode .category-filter {
    cursor: move;
}

.clear-filters-btn {
    background: transparent;
    border: 1px solid var(--danger-color);
    border-radius: 8px;
    padding: 0.375rem 0.75rem;
    color: var(--danger-color);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.75rem;
    font-weight: 500;
    font-family: inherit;
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
}

.clear-filters-btn:hover {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--danger-color);
    transform: translateY(-1px);
}

.category-filter.active {
    animation: scaleIn 0.2s ease-out;
}

@keyframes scaleIn {
    from {
        transform: scale(0.95);
    }
    to {
        transform: scale(1);
    }
}

.drag-handle {
    cursor: grab;
    opacity: 0.3;
    transition: opacity 0.2s;
    display: flex;
    align-items: center;
}

.task-item:hover .drag-handle {
    opacity: 0.6;
}

.drag-handle:hover {
    opacity: 1 !important;
}

.drag-handle:active {
    cursor: grabbing;
}

.task-item.dragging {
    opacity: 0.4;
    transform: scale(0.98);
    cursor: grabbing;
}

.task-item.drag-over {
    border-color: var(--primary-gradient);
    background: rgba(102, 126, 234, 0.05);
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn 0.2s ease-out;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    width: 90%;
    max-width: 420px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    animation: slideUp 0.3s ease-out;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: var(--transition);
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.modal-body {
    padding: 1rem;
}

.form-group {
    margin-bottom: 1rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.modal-input {
    width: 100%;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    color: var(--text-primary);
    transition: var(--transition);
    font-family: inherit;
}

.modal-input:focus {
    outline: none;
    border-color: rgba(102, 126, 234, 0.5);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.color-picker {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 0.75rem;
}

.color-option {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.color-option:hover {
    transform: scale(1.1);
}

.color-option.selected {
    border-color: var(--text-primary);
}

.color-option.selected::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 16px;
    border-left: 3px solid white;
    border-bottom: 3px solid white;
    transform: translate(-50%, -60%) rotate(-45deg);
}

.modal-footer {
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
    padding: 1rem;
    border-top: 1px solid var(--border-color);
}

.modal-btn {
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-family: inherit;
}

.modal-btn.cancel {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.modal-btn.cancel:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

.modal-btn.create {
    background: var(--primary-gradient);
    color: white;
}

.modal-btn.create:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

.modal-btn.create:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.custom-color-btn {
    position: relative;
    overflow: hidden;
}

.rainbow-gradient {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        45deg,
        #ff0000 0%,
        #ff7700 12.5%,
        #ffdd00 25%,
        #00ff00 37.5%,
        #0099ff 50%,
        #6633ff 62.5%,
        #ff00ff 75%,
        #ff0099 87.5%,
        #ff0000 100%
    );
    border-radius: 10px;
}

.custom-color-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.3);
}

.custom-color-btn.selected {
    border-color: var(--text-primary);
}

.custom-color-btn.selected::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 16px;
    border-left: 3px solid white;
    border-bottom: 3px solid white;
    transform: translate(-50%, -60%) rotate(-45deg);
    z-index: 1;
    filter: drop-shadow(0 0 2px rgba(0, 0, 0, 0.5));
}

.color-picker-input {
    width: 100%;
    height: 200px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    margin-top: 1rem;
}

.selected-color-preview {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 1rem;
    padding: 0.75rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
}

.selected-color-preview span {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.color-preview-box {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    border: 2px solid var(--border-color);
}

#colorHexValue {
    font-family: 'Courier New', monospace;
    color: var(--text-primary);
    font-weight: 500;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.task-item.moving-to-bottom {
    position: relative;
    z-index: 100;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.task-item.slide-up {
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

@media (min-width: 1400px) {
    .container {
        padding: 1rem 3rem;
    }
    
    .clear-container {
        max-width: 1400px;
    }
    
    .input-container {
        width: 100%;
    }
    
    .stats-container {
        gap: 1rem;
    }
    
    .stat-card {
        padding: 1.25rem;
    }
    
    .tasks-wrapper {
        width: 100%;
    }
}

@media (max-width: 640px) {
    .container {
        padding: 1rem;
    }
    
    .app-title {
        font-size: 1.75rem;
    }
    
    .stats-container {
        gap: 0.375rem;
    }
    
    .stat-card {
        padding: 0.5rem;
    }
    
    .stat-value {
        font-size: 1rem;
    }
    
    .filter-container {
        justify-content: center;
    }
    
    .input-container,
    .tasks-container,
    .clear-container {
        max-width: 100%;
    }
    
    .stats-container {
        width: 100%;
    }
    
    .tasks-wrapper {
        grid-template-columns: 1fr;
    }

    .tasks-column {
        gap: 0.75rem;
    }
}

/* Date/Time Styles */
.datetime-wrapper,
.ghost-wrapper,
.options-wrapper {
    position: relative;
    display: inline-block;
}

.task-datetime,
.task-hidden-until {
    position: absolute;
    opacity: 0;
    width: 1px;
    height: 1px;
    border: 0;
    padding: 0;
    margin: 0;
    clip: rect(0, 0, 0, 0);
    overflow: hidden;
}

.datetime-icon,
.ghost-icon,
.options-icon {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 0.625rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.options-wrapper {
    position: relative;
}

.options-dropdown {
    position: absolute;
    top: 110%;
    right: 0;
    min-width: 180px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    box-shadow: 0 12px 24px var(--shadow-color);
    padding: 0.35rem;
    z-index: 1500;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transform-origin: top right;
    transition: var(--transition);
}

.options-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.option-item {
    width: 100%;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: var(--text-primary);
    text-align: left;
    padding: 0.45rem 0.6rem;
    font-size: 0.8rem;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: flex-start;
}

.option-item + .option-item {
    margin-top: 0.15rem;
}

.option-item:hover {
    background: rgba(255, 255, 255, 0.08);
}

.data-import-input {
    display: none;
}

.datetime-icon:hover,
.ghost-icon:hover,
.options-icon:hover {
    border-color: rgba(102, 126, 234, 0.5);
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.08);
}

.datetime-icon:active,
.ghost-icon:active,
.options-icon:active {
    transform: scale(0.95);
}

.datetime-icon.has-date {
    color: var(--cat-finance);
    border-color: var(--cat-finance);
}

.ghost-icon.has-date {
    color: #a855f7;
    border-color: #a855f7;
    background: rgba(168, 85, 247, 0.1);
}

.task-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.task-due-date {
    font-size: 0.75rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.task-due-date.overdue {
    color: var(--danger-color);
    font-weight: 500;
}

.task-item.overdue {
    border-left: 3px solid var(--danger-color);
}

.edit-datetime {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    color: var(--text-primary);
    font-family: inherit;
    margin-top: 0.5rem;
}

.edit-datetime:focus {
    outline: none;
    border-color: rgba(102, 126, 234, 0.5);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.edit-datetime::-webkit-calendar-picker-indicator {
    filter: invert(1);
    cursor: pointer;
}

.edit-categories-wrapper {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 8px;
}

.edit-category-checkbox {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s;
}

.edit-category-checkbox:hover {
    background: rgba(255, 255, 255, 0.05);
}

.edit-category-checkbox input[type="checkbox"] {
    width: 14px;
    height: 14px;
    cursor: pointer;
}

.edit-category-checkbox span {
    font-size: 0.85rem;
    user-select: none;
}