/* ===== CSS Variables ===== */
:root {
    /* Colors - Violet primary */
    --primary-50: #f5f3ff;
    --primary-100: #ede9fe;
    --primary-200: #ddd6fe;
    --primary-300: #c4b5fd;
    --primary-400: #a78bfa;
    --primary-500: #8b5cf6;
    --primary-600: #7c3aed;
    --primary-700: #6d28d9;
    --primary-800: #5b21b6;
    --primary-900: #4c1d95;

    /* Success - Green */
    --success-50: #f0fdf4;
    --success-100: #dcfce7;
    --success-200: #bbf7d0;
    --success-300: #86efac;
    --success-400: #4ade80;
    --success-500: #22c55e;
    --success-600: #16a34a;
    --success-700: #15803d;

    /* Warning - Amber */
    --warning-50: #fffbeb;
    --warning-100: #fef3c7;
    --warning-200: #fde68a;
    --warning-300: #fcd34d;
    --warning-400: #fbbf24;
    --warning-500: #f59e0b;
    --warning-600: #d97706;

    /* Danger - Red */
    --danger-50: #fef2f2;
    --danger-100: #fee2e2;
    --danger-500: #ef4444;
    --danger-600: #dc2626;
    --danger-700: #b91c1c;

    /* Neutral - Stone */
    --stone-50: #fafaf9;
    --stone-100: #f5f5f4;
    --stone-200: #e7e5e4;
    --stone-300: #d6d3d1;
    --stone-400: #a8a29e;
    --stone-500: #78716c;
    --stone-600: #57534e;
    --stone-700: #44403c;
    --stone-800: #292524;
    --stone-900: #1c1917;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;

    /* Border radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 200ms ease;
    --transition-slow: 300ms ease;

    /* Sidebar */
    --sidebar-width-expanded: 260px;
    --sidebar-width-collapsed: 72px;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--stone-100);
    color: var(--stone-800);
    line-height: 1.5;
    min-height: 100vh;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, textarea {
    font-family: inherit;
    font-size: inherit;
}

/* ===== App Layout ===== */
#app {
    display: flex;
    min-height: 100vh;
}

/* ===== Sidebar ===== */
.sidebar {
    width: var(--sidebar-width-collapsed);
    background: white;
    border-right: 1px solid var(--stone-200);
    display: flex;
    flex-direction: column;
    transition: width var(--transition-normal);
    overflow: hidden;
    flex-shrink: 0;
}

.sidebar.expanded {
    width: var(--sidebar-width-expanded);
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4);
    border-bottom: 1px solid var(--stone-200);
    min-height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--stone-900);
    white-space: nowrap;
}

.logo-icon {
    font-size: 1.5rem;
}

.sidebar:not(.expanded) .logo-text {
    display: none;
}

.sidebar-toggle {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    color: var(--stone-500);
    transition: all var(--transition-fast);
}

.sidebar-toggle:hover {
    background: var(--stone-100);
    color: var(--stone-700);
}

.sidebar:not(.expanded) .sidebar-toggle {
    transform: rotate(180deg);
}

/* Sidebar Navigation */
.sidebar-nav {
    padding: var(--space-3);
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3);
    border-radius: var(--radius-lg);
    color: var(--stone-600);
    font-weight: 500;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.nav-item:hover {
    background: var(--stone-100);
    color: var(--stone-800);
}

.nav-item.active {
    background: var(--primary-100);
    color: var(--primary-700);
}

.nav-text {
    flex: 1;
}

.sidebar:not(.expanded) .nav-text {
    display: none;
}

.nav-badge {
    background: var(--primary-500);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.125rem 0.5rem;
    border-radius: var(--radius-full);
    min-width: 1.5rem;
    text-align: center;
}

.nav-badge:empty, .nav-badge[data-count="0"] {
    display: none;
}

.nav-count {
    font-size: 0.875rem;
    color: var(--stone-400);
}

.sidebar:not(.expanded) .nav-badge,
.sidebar:not(.expanded) .nav-count {
    display: none;
}

/* Sidebar Sections */
.sidebar-sections {
    flex: 1;
    padding: var(--space-3);
    border-top: 1px solid var(--stone-200);
    overflow-y: auto;
}

.sections-header {
    padding: var(--space-2) var(--space-3);
    margin-bottom: var(--space-1);
}

.sections-title {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--stone-400);
}

.sidebar:not(.expanded) .sections-header {
    display: none;
}

.sections-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.section-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-lg);
    color: var(--stone-600);
    font-weight: 500;
    transition: all var(--transition-fast);
    white-space: nowrap;
    position: relative;
}

.section-item:hover {
    background: var(--stone-100);
    color: var(--stone-800);
}

.section-item.active {
    background: var(--primary-50);
    color: var(--primary-700);
}

.section-emoji {
    font-size: 1.125rem;
    width: 24px;
    text-align: center;
}

.section-name {
    flex: 1;
}

.section-count {
    font-size: 0.875rem;
    color: var(--stone-400);
}

.section-counts {
    display: flex;
    gap: var(--space-1);
    font-size: 0.75rem;
}

.section-today {
    background: var(--primary-100);
    color: var(--primary-700);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    min-width: 20px;
    text-align: center;
}

.section-tomorrow {
    background: var(--stone-100);
    color: var(--stone-500);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    min-width: 20px;
    text-align: center;
}

.section-delete {
    width: 20px;
    height: 20px;
    display: none;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    color: var(--stone-400);
    font-size: 1rem;
    line-height: 1;
    flex-shrink: 0;
}

.section-item:hover .section-counts {
    display: none;
}

.section-item:hover .section-delete {
    display: flex;
}

.section-delete:hover {
    background: var(--danger-100);
    color: var(--danger-600);
}

.sidebar:not(.expanded) .section-name,
.sidebar:not(.expanded) .section-count,
.sidebar:not(.expanded) .section-counts,
.sidebar:not(.expanded) .section-delete {
    display: none;
}

/* Add Section Form */
.add-section-form {
    padding: var(--space-2);
    margin-top: var(--space-2);
    background: var(--stone-50);
    border-radius: var(--radius-lg);
}

.add-section-form.hidden {
    display: none;
}

.emoji-input {
    width: 48px;
    height: 36px;
    padding: var(--space-2);
    border: 1px solid var(--stone-300);
    border-radius: var(--radius-md);
    text-align: center;
    font-size: 1.125rem;
    margin-bottom: var(--space-2);
}

.name-input {
    width: 100%;
    height: 36px;
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--stone-300);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-2);
}

.emoji-input:focus, .name-input:focus {
    outline: none;
    border-color: var(--primary-400);
    box-shadow: 0 0 0 3px var(--primary-100);
}

.add-section-actions {
    display: flex;
    gap: var(--space-2);
}

.add-section-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-lg);
    color: var(--stone-500);
    font-weight: 500;
    transition: all var(--transition-fast);
    margin-top: var(--space-2);
}

.add-section-btn:hover {
    background: var(--stone-100);
    color: var(--primary-600);
}

.sidebar:not(.expanded) .add-section-btn span,
.sidebar:not(.expanded) .add-section-form {
    display: none;
}

/* Sidebar Footer */
.sidebar-footer {
    padding: var(--space-3);
    border-top: 1px solid var(--stone-200);
}

.reset-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-lg);
    color: var(--stone-500);
    font-size: 0.875rem;
    transition: all var(--transition-fast);
    width: 100%;
}

.reset-btn:hover {
    background: var(--stone-100);
    color: var(--stone-700);
}

.sidebar:not(.expanded) .reset-btn span {
    display: none;
}

/* ===== Icons ===== */
.icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

/* ===== Main Content ===== */
.main-content {
    flex: 1;
    padding: var(--space-8);
    overflow-y: auto;
}

.mode-view {
    display: none;
    max-width: 48rem;
    margin: 0 auto;
}

.mode-view.active {
    display: block;
}

.mode-header {
    margin-bottom: var(--space-6);
}

.mode-header-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}

.mode-header-left {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.mode-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--stone-900);
}

.mode-subtitle {
    color: var(--stone-500);
    margin-top: var(--space-1);
}

/* Filter Chip */
.filter-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-1) var(--space-2) var(--space-1) var(--space-3);
    background: var(--primary-100);
    color: var(--primary-700);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
}

.filter-chip.hidden {
    display: none;
}

.clear-filter {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    font-size: 1rem;
    color: var(--primary-600);
    transition: all var(--transition-fast);
}

.clear-filter:hover {
    background: var(--primary-200);
}

/* Section Filter Dropdown */
.section-filter-wrapper {
    position: relative;
}

.section-filter-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: var(--stone-100);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--stone-600);
    transition: all var(--transition-fast);
}

.section-filter-btn:hover {
    background: var(--stone-200);
    color: var(--stone-800);
}

.section-filter-btn.active {
    background: var(--primary-100);
    color: var(--primary-700);
}

.filter-chevron {
    width: 16px;
    height: 16px;
    transition: transform var(--transition-fast);
}

.section-filter-wrapper.open .filter-chevron {
    transform: rotate(180deg);
}

.section-filter-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: var(--space-1);
    background: white;
    border: 1px solid var(--stone-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 180px;
    z-index: 100;
    display: none;
    max-height: 300px;
    overflow-y: auto;
}

.section-filter-wrapper.open .section-filter-dropdown {
    display: block;
}

.section-filter-option {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    width: 100%;
    text-align: left;
    color: var(--stone-700);
    font-size: 0.875rem;
    transition: all var(--transition-fast);
}

.section-filter-option:hover {
    background: var(--stone-100);
}

.section-filter-option.active {
    background: var(--primary-50);
    color: var(--primary-700);
}

.section-filter-option:first-child {
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.section-filter-option:last-child {
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.filter-counts {
    display: flex;
    gap: var(--space-1);
    margin-left: auto;
    font-size: 0.75rem;
}

.filter-today {
    background: var(--primary-100);
    color: var(--primary-700);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    min-width: 20px;
    text-align: center;
}

.filter-tomorrow {
    background: var(--stone-100);
    color: var(--stone-500);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    min-width: 20px;
    text-align: center;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    font-weight: 500;
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.btn-sm {
    padding: var(--space-1) var(--space-3);
    font-size: 0.875rem;
}

.btn-lg {
    padding: var(--space-3) var(--space-6);
    font-size: 1rem;
}

.btn-primary {
    background: var(--primary-600);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background: var(--primary-700);
}

.btn-primary:disabled {
    background: var(--stone-300);
    cursor: not-allowed;
}

.btn-ghost {
    background: transparent;
    color: var(--stone-600);
}

.btn-ghost:hover {
    background: var(--stone-100);
    color: var(--stone-800);
}

.btn-danger {
    background: var(--danger-600);
    color: white;
}

.btn-danger:hover {
    background: var(--danger-700);
}

.btn kbd {
    background: rgba(255,255,255,0.2);
    padding: 0.125rem 0.375rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

/* ===== Dump Mode ===== */
.eod-toggle {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: var(--stone-100);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--stone-600);
    transition: all var(--transition-fast);
}

.eod-toggle:hover {
    background: var(--stone-200);
    color: var(--stone-800);
}

.eod-toggle.active {
    background: var(--primary-100);
    color: var(--primary-700);
}

.eod-toggle .icon {
    width: 16px;
    height: 16px;
}

.dump-container {
    background: white;
    border-radius: var(--radius-2xl);
    padding: var(--space-6);
    box-shadow: var(--shadow-md);
}

.section-pills {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}

.section-pill {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: var(--stone-100);
    border: 2px solid transparent;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--stone-600);
    transition: all var(--transition-fast);
}

.section-pill:hover {
    background: var(--stone-200);
}

.section-pill.active {
    background: var(--primary-100);
    border-color: var(--primary-400);
    color: var(--primary-700);
}

.dump-input-wrapper {
    position: relative;
}

.dump-textarea {
    width: 100%;
    padding: var(--space-4);
    border: 2px solid var(--stone-200);
    border-radius: var(--radius-xl);
    resize: vertical;
    min-height: 200px;
    font-size: 1rem;
    line-height: 1.75;
    transition: all var(--transition-fast);
}

.dump-textarea:focus {
    outline: none;
    border-color: var(--primary-400);
    box-shadow: 0 0 0 3px var(--primary-100);
}

.dump-textarea::placeholder {
    color: var(--stone-400);
}

.dump-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: var(--space-4);
}

.task-counter {
    font-size: 0.875rem;
    color: var(--stone-500);
    font-weight: 500;
}

/* ===== Review Mode ===== */
.review-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.date-group {
    background: white;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.date-group-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-5);
    background: var(--stone-50);
    cursor: pointer;
    user-select: none;
}

.date-group-header:hover {
    background: var(--stone-100);
}

.date-group-left {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.date-dot {
    width: 10px;
    height: 10px;
    border-radius: var(--radius-full);
}

.date-dot.today {
    background: var(--success-500);
}

.date-dot.yesterday {
    background: var(--warning-500);
}

.date-dot.older {
    background: var(--stone-400);
}

.date-label {
    font-weight: 600;
    color: var(--stone-800);
}

.date-count {
    font-size: 0.875rem;
    color: var(--stone-500);
}

.date-group-right {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.clear-all-btn {
    font-size: 0.875rem;
    color: var(--stone-500);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.clear-all-btn:hover {
    background: var(--success-100);
    color: var(--success-700);
}

.collapse-icon {
    width: 20px;
    height: 20px;
    color: var(--stone-400);
    transition: transform var(--transition-fast);
}

.date-group.collapsed .collapse-icon {
    transform: rotate(-90deg);
}

.date-group-content {
    padding: var(--space-2) var(--space-3);
    background: white;
}

.date-group.collapsed .date-group-content {
    display: none;
}

/* Task Items */
.task-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.task-item:hover {
    background: var(--stone-100);
}

.task-checkbox {
    width: 18px;
    height: 18px;
    border: 2px solid var(--stone-300);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all var(--transition-fast);
    color: transparent;
}

.task-checkbox:hover {
    border-color: var(--success-500);
    background: var(--success-50);
}

.task-checkbox svg {
    width: 12px;
    height: 12px;
    stroke-width: 3;
}

.task-item.completing .task-checkbox {
    border-color: var(--success-500);
    background: var(--success-500);
    color: white;
}

.task-content {
    flex: 1;
    min-width: 0;
    display: flex;
    align-items: center;
}

.task-title {
    color: var(--stone-800);
    word-break: break-word;
    font-size: 0.9375rem;
}

.task-item.completing .task-title {
    text-decoration: line-through;
    color: var(--stone-400);
}

.task-title-input {
    width: 100%;
    padding: var(--space-1) var(--space-2);
    border: 1px solid var(--primary-400);
    border-radius: var(--radius-md);
    font-size: inherit;
    background: white;
}

.task-title-input:focus {
    outline: none;
    box-shadow: 0 0 0 3px var(--primary-100);
}

.task-section-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: 2px var(--space-2);
    background: var(--stone-100);
    border-radius: var(--radius-full);
    font-size: 0.7rem;
    color: var(--stone-500);
    flex-shrink: 0;
    white-space: nowrap;
}

.task-actions {
    display: flex;
    align-items: center;
    gap: 2px;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.task-item:hover .task-actions {
    opacity: 1;
}

.task-action {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    color: var(--stone-400);
    transition: all var(--transition-fast);
    position: relative;
}

.task-action svg {
    width: 16px;
    height: 16px;
}

.task-action:hover {
    background: var(--stone-200);
    color: var(--stone-600);
}

.task-action.tomorrow:hover {
    background: var(--primary-100);
    color: var(--primary-600);
}

.task-action.move:hover {
    background: var(--primary-100);
    color: var(--primary-600);
}

.task-action.save:hover {
    background: var(--warning-100);
    color: var(--warning-600);
}

.task-action.delete:hover {
    background: var(--danger-100);
    color: var(--danger-600);
}

/* Move Dropdown */
.move-wrapper {
    position: relative;
}

.move-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: var(--space-1);
    background: white;
    border: 1px solid var(--stone-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 160px;
    z-index: 100;
    display: none;
}

.move-dropdown.open {
    display: block;
}

.move-option {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    width: 100%;
    text-align: left;
    color: var(--stone-700);
    transition: all var(--transition-fast);
}

.move-option:hover {
    background: var(--stone-100);
}

.move-option:first-child {
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.move-option:last-child {
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* Completing Animation */
.task-item.completing {
    background: var(--success-50);
    animation: completeTask 600ms ease-out forwards;
}

@keyframes completeTask {
    0% {
        background: var(--success-50);
        opacity: 1;
    }
    50% {
        background: var(--success-100);
    }
    100% {
        opacity: 0;
        height: 0;
        padding: 0;
        margin: 0;
        overflow: hidden;
    }
}

/* ===== Completed Tasks Section ===== */
.completed-section {
    margin-top: var(--space-6);
    background: var(--stone-50);
    border-radius: var(--radius-2xl);
    overflow: hidden;
}

.completed-section.hidden {
    display: none;
}

.completed-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-5);
    cursor: pointer;
    user-select: none;
    transition: background var(--transition-fast);
}

.completed-header:hover {
    background: var(--stone-100);
}

.completed-header-left {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.completed-header .collapse-icon {
    width: 20px;
    height: 20px;
    color: var(--stone-400);
    transition: transform var(--transition-fast);
}

.completed-header.collapsed .collapse-icon {
    transform: rotate(-90deg);
}

.completed-title {
    font-weight: 600;
    color: var(--stone-600);
}

.completed-count {
    font-size: 0.875rem;
    color: var(--stone-400);
    background: var(--stone-200);
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

.completed-header-right {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.completed-filter-wrapper {
    position: relative;
}

.completed-filter-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: white;
    border: 1px solid var(--stone-200);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    color: var(--stone-600);
    transition: all var(--transition-fast);
}

.completed-filter-btn:hover {
    border-color: var(--stone-300);
    background: var(--stone-50);
}

.completed-filter-btn.active {
    background: var(--primary-50);
    border-color: var(--primary-200);
    color: var(--primary-700);
}

.completed-filter-btn .filter-chevron {
    width: 14px;
    height: 14px;
    transition: transform var(--transition-fast);
}

.completed-filter-wrapper.open .filter-chevron {
    transform: rotate(180deg);
}

.completed-filter-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: var(--space-1);
    background: white;
    border: 1px solid var(--stone-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 150px;
    z-index: 100;
    display: none;
    max-height: 250px;
    overflow-y: auto;
}

.completed-filter-wrapper.open .completed-filter-dropdown {
    display: block;
}

.completed-filter-option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-2) var(--space-3);
    width: 100%;
    text-align: left;
    color: var(--stone-700);
    font-size: 0.875rem;
    transition: all var(--transition-fast);
}

.completed-filter-option:hover {
    background: var(--stone-100);
}

.completed-filter-option.active {
    background: var(--primary-50);
    color: var(--primary-700);
}

.completed-filter-option:first-child {
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.completed-filter-option:last-child {
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.filter-option-count {
    font-size: 0.75rem;
    color: var(--stone-400);
}

.clear-completed-btn {
    font-size: 0.875rem;
    color: var(--stone-500);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.clear-completed-btn:hover {
    background: var(--danger-100);
    color: var(--danger-600);
}

.completed-content {
    padding: var(--space-2) var(--space-3);
    background: white;
    border-top: 1px solid var(--stone-200);
}

.completed-content.hidden {
    display: none;
}

.completed-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.completed-item:hover {
    background: var(--stone-50);
}

.completed-check {
    width: 18px;
    height: 18px;
    border-radius: var(--radius-sm);
    background: var(--success-100);
    color: var(--success-600);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.completed-check svg {
    width: 12px;
    height: 12px;
    stroke-width: 3;
}

.completed-item-content {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.completed-item-title {
    color: var(--stone-500);
    text-decoration: line-through;
    font-size: 0.9375rem;
}

.completed-item-meta {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.75rem;
    color: var(--stone-400);
}

.completed-item-section {
    display: inline-flex;
    align-items: center;
    gap: 2px;
}

.completed-actions {
    display: flex;
    align-items: center;
    gap: 2px;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.completed-item:hover .completed-actions {
    opacity: 1;
}

.completed-action {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    color: var(--stone-400);
    transition: all var(--transition-fast);
}

.completed-action svg {
    width: 16px;
    height: 16px;
}

.completed-action.restore:hover {
    background: var(--success-100);
    color: var(--success-600);
}

.completed-action.delete:hover {
    background: var(--danger-100);
    color: var(--danger-600);
}

/* ===== Saved Mode ===== */
.saved-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.saved-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4);
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.saved-item:hover {
    box-shadow: var(--shadow-md);
}

.saved-content-area {
    flex: 1;
    min-width: 0;
}

.saved-title {
    color: var(--stone-800);
    font-weight: 500;
    margin-bottom: var(--space-1);
}

.saved-meta {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: 0.875rem;
}

.saved-section {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    color: var(--stone-500);
}

.saved-date {
    color: var(--stone-400);
}

.saved-date.ready {
    color: var(--success-600);
    font-weight: 500;
}

.saved-actions {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.saved-action {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    color: var(--stone-400);
    transition: all var(--transition-fast);
}

.saved-action.activate:hover {
    background: var(--success-100);
    color: var(--success-600);
}

.saved-action.delete:hover {
    background: var(--danger-100);
    color: var(--danger-600);
}

/* ===== Empty States ===== */
.empty-state {
    text-align: center;
    padding: var(--space-12) var(--space-6);
}

.empty-state.hidden {
    display: none;
}

.empty-icon {
    font-size: 3rem;
    margin-bottom: var(--space-4);
}

.empty-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--stone-800);
    margin-bottom: var(--space-2);
}

.empty-text {
    color: var(--stone-500);
    margin-bottom: var(--space-6);
    max-width: 320px;
    margin-left: auto;
    margin-right: auto;
}

.empty-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
}

/* ===== Modal ===== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--space-4);
}

.modal-overlay.hidden {
    display: none;
}

.modal {
    background: white;
    border-radius: var(--radius-2xl);
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow-lg);
}

.modal-sm {
    max-width: 340px;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5) var(--space-6);
    border-bottom: 1px solid var(--stone-200);
}

.modal-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--stone-900);
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    font-size: 1.5rem;
    color: var(--stone-400);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--stone-100);
    color: var(--stone-600);
}

.modal-body {
    padding: var(--space-6);
}

.modal-body p {
    color: var(--stone-600);
    line-height: 1.6;
}

.modal-task-preview {
    padding: var(--space-3);
    background: var(--stone-100);
    border-radius: var(--radius-lg);
    color: var(--stone-700);
    margin-bottom: var(--space-5);
}

.quick-options {
    display: flex;
    gap: var(--space-2);
    margin-bottom: var(--space-5);
}

.quick-option {
    flex: 1;
    padding: var(--space-3);
    background: var(--stone-100);
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    font-weight: 500;
    color: var(--stone-600);
    transition: all var(--transition-fast);
}

.quick-option:hover {
    background: var(--stone-200);
}

.quick-option.active {
    background: var(--primary-100);
    border-color: var(--primary-400);
    color: var(--primary-700);
}

.custom-date {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.custom-date label {
    font-size: 0.875rem;
    color: var(--stone-500);
}

.date-input {
    width: 100%;
    padding: var(--space-3);
    border: 2px solid var(--stone-200);
    border-radius: var(--radius-lg);
    font-size: 1rem;
}

.date-input:focus {
    outline: none;
    border-color: var(--primary-400);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-6);
    border-top: 1px solid var(--stone-200);
}

/* ===== Toast ===== */
.toast-container {
    position: fixed;
    bottom: var(--space-6);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    z-index: 1100;
}

.toast {
    background: var(--stone-800);
    color: white;
    padding: var(--space-3) var(--space-5);
    border-radius: var(--radius-lg);
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    animation: toastIn 300ms ease-out, toastOut 300ms ease-in 2700ms forwards;
}

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

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

/* ===== Sync Status & Settings ===== */
.sync-row {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    margin-bottom: var(--space-2);
}

.sync-status {
    width: 10px;
    height: 10px;
    border-radius: var(--radius-full);
    background: var(--stone-300);
    transition: all var(--transition-fast);
}

.sync-status.synced {
    background: var(--success-500);
}

.sync-status.syncing {
    background: var(--warning-400);
    animation: pulse 1s ease-in-out infinite;
}

.sync-status.offline {
    background: var(--stone-400);
}

.sync-status.error {
    background: var(--danger-500);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.settings-btn {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    color: var(--stone-400);
    transition: all var(--transition-fast);
    margin-left: auto;
}

.settings-btn:hover {
    background: var(--stone-100);
    color: var(--stone-600);
}

.settings-btn .icon {
    width: 16px;
    height: 16px;
}

.sidebar:not(.expanded) .sync-row {
    justify-content: center;
    padding: var(--space-2);
}

.sidebar:not(.expanded) .settings-btn {
    margin-left: 0;
}

/* Settings Modal */
.setting-group {
    margin-bottom: var(--space-5);
}

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

.setting-group label {
    display: block;
    font-weight: 600;
    color: var(--stone-800);
    margin-bottom: var(--space-1);
}

.setting-description {
    font-size: 0.875rem;
    color: var(--stone-500);
    margin-bottom: var(--space-2);
}

.setting-input {
    width: 100%;
    padding: var(--space-3);
    border: 2px solid var(--stone-200);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.setting-input:focus {
    outline: none;
    border-color: var(--primary-400);
    box-shadow: 0 0 0 3px var(--primary-100);
}

.btn-logout {
    width: 100%;
    color: var(--danger-600);
    border: 1px solid var(--danger-200);
}

.btn-logout:hover {
    background: var(--danger-50);
    color: var(--danger-700);
}

/* ===== Login Screen ===== */
.login-screen {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-100) 0%, var(--stone-100) 50%, var(--primary-50) 100%);
    padding: var(--space-4);
}

.login-screen.hidden {
    display: none;
}

.login-container {
    background: white;
    padding: var(--space-10);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 380px;
    text-align: center;
}

.login-logo {
    margin-bottom: var(--space-6);
}

.login-icon {
    font-size: 3.5rem;
    display: block;
    margin-bottom: var(--space-2);
}

.login-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--stone-900);
}

.login-subtitle {
    color: var(--stone-500);
    margin-bottom: var(--space-6);
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.login-input {
    width: 100%;
    padding: var(--space-4);
    border: 2px solid var(--stone-200);
    border-radius: var(--radius-xl);
    font-size: 1rem;
    text-align: center;
    transition: all var(--transition-fast);
}

.login-input:focus {
    outline: none;
    border-color: var(--primary-400);
    box-shadow: 0 0 0 3px var(--primary-100);
}

.login-input::placeholder {
    color: var(--stone-400);
}

.login-error {
    color: var(--danger-600);
    font-size: 0.875rem;
    padding: var(--space-2);
    background: var(--danger-50);
    border-radius: var(--radius-md);
}

.login-error.hidden {
    display: none;
}

.login-btn {
    width: 100%;
}

.login-btn:disabled {
    background: var(--stone-300);
}

/* ===== Utility ===== */
.hidden {
    display: none !important;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        z-index: 500;
        width: var(--sidebar-width-collapsed);
    }

    .sidebar.expanded {
        width: var(--sidebar-width-expanded);
        box-shadow: var(--shadow-lg);
    }

    .main-content {
        margin-left: var(--sidebar-width-collapsed);
        padding: var(--space-4);
    }

    .dump-container {
        padding: var(--space-4);
    }

    .mode-header-top {
        flex-direction: column;
        align-items: flex-start;
    }
}