/* ============================================
   📸 Foto To-Do App - Stylesheet v2.0
   ============================================ */

/* CSS Custom Properties (Variablen) */
:root {
    /* Primärfarben */
    --primary: #1a73e8;
    --primary-dark: #1557b0;
    --primary-light: #4285f4;
    
    /* Statusfarben */
    --success: #34a853;
    --success-dark: #2d8a46;
    --warning: #fbbc04;
    --danger: #ea4335;
    --danger-dark: #c5221f;
    
    /* Prioritätsfarben */
    --priority-low: #34a853;
    --priority-medium: #fbbc04;
    --priority-high: #ea4335;
    
    /* Neutrale Farben - Light Mode */
    --bg-primary: #f0f2f5;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f8f9fa;
    --text-primary: #202124;
    --text-secondary: #5f6368;
    --text-muted: #80868b;
    --border-color: #dadce0;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --shadow-strong: rgba(0, 0, 0, 0.15);
    
    /* Abstände */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 50%;
    
    /* Übergänge */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    --transition-slow: 0.4s ease;
    
    /* Schriften */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-md: 1rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-xxl: 2rem;
}

/* Dark Mode Variablen */
[data-theme="dark"] {
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --bg-tertiary: #0f3460;
    --text-primary: #e8e8e8;
    --text-secondary: #b8b8b8;
    --text-muted: #888888;
    --border-color: #3a3a5c;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --shadow-strong: rgba(0, 0, 0, 0.5);
    --primary: #4dabf7;
    --primary-dark: #339af0;
}

/* ============================================
   Reset & Grundlagen
   ============================================ */

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    min-height: 100vh;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* Selection */
::selection {
    background: var(--primary);
    color: white;
}

/* ============================================
   Container & Layout
   ============================================ */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md);
}

/* ============================================
   Offline Banner
   ============================================ */

.offline-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, var(--warning), #f59f00);
    color: #000;
    text-align: center;
    padding: var(--spacing-sm) var(--spacing-md);
    font-weight: 600;
    z-index: 9999;
    transform: translateY(0);
    transition: transform var(--transition-normal);
}

.offline-banner.hidden {
    transform: translateY(-100%);
}

/* ============================================
   Toast Notifications
   ============================================ */

.toast-container {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 9998;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    pointer-events: none;
}

.toast {
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: 0 4px 12px var(--shadow-strong);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    min-width: 280px;
    max-width: 400px;
    animation: slideInRight 0.3s ease, fadeOut 0.3s ease 2.7s forwards;
    pointer-events: auto;
    border-left: 4px solid var(--primary);
}

.toast.success {
    border-left-color: var(--success);
}

.toast.error {
    border-left-color: var(--danger);
}

.toast.warning {
    border-left-color: var(--warning);
}

.toast-icon {
    font-size: var(--font-size-lg);
}

.toast-message {
    flex: 1;
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes fadeOut {
    to {
        opacity: 0;
        transform: translateX(50%);
    }
}

/* ============================================
   Header
   ============================================ */

.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg) 0;
    margin-bottom: var(--spacing-md);
}

.app-header h1 {
    font-size: var(--font-size-xxl);
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.header-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.icon-btn {
    width: 44px;
    height: 44px;
    border: none;
    border-radius: var(--radius-full);
    background: var(--bg-tertiary);
    font-size: var(--font-size-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-btn:hover {
    background: var(--primary);
    transform: scale(1.1);
}

.icon-btn:active {
    transform: scale(0.95);
}

/* ============================================
   Info Banner
   ============================================ */

.info-banner {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background: linear-gradient(135deg, #e3f2fd, #bbdefb);
    border-left: 4px solid var(--primary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
}

[data-theme="dark"] .info-banner {
    background: linear-gradient(135deg, #0f3460, #16213e);
}

.info-icon {
    font-size: var(--font-size-xl);
}

.info-banner p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin: 0;
}

/* ============================================
   Kategorie-Sektion
   ============================================ */

.category-section {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: 0 2px 8px var(--shadow-color);
}

.category-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.category-header h3 {
    font-size: var(--font-size-md);
    color: var(--text-primary);
}

.small-btn {
    padding: var(--spacing-xs) var(--spacing-md);
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.small-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(26, 115, 232, 0.1);
}

.category-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.category-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-xl);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 2px solid transparent;
}

.category-tag:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px var(--shadow-color);
}

.category-tag.active {
    border-color: var(--text-primary);
}

.category-tag .delete-cat {
    opacity: 0;
    margin-left: var(--spacing-xs);
    transition: opacity var(--transition-fast);
}

.category-tag:hover .delete-cat {
    opacity: 1;
}

/* ============================================
   Modal Styles
   ============================================ */

.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 1;
    transition: opacity var(--transition-normal);
}

.modal.hidden {
    opacity: 0;
    pointer-events: none;
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    max-width: 90vw;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalSlideIn 0.3s ease;
    position: relative;
}

@keyframes modalSlideIn {
    from {
        transform: translateY(-30px) scale(0.95);
        opacity: 0;
    }
    to {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
}

.modal-content h3 {
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.modal-content input[type="text"] {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    transition: border-color var(--transition-fast);
}

.modal-content input[type="text"]:focus {
    outline: none;
    border-color: var(--primary);
}

.color-picker {
    margin-bottom: var(--spacing-lg);
}

.color-picker label {
    display: block;
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.color-options {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.color-btn {
    width: 36px;
    height: 36px;
    border: 3px solid transparent;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.color-btn:hover {
    transform: scale(1.15);
}

.color-btn.selected {
    border-color: var(--text-primary);
    transform: scale(1.1);
}

.modal-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
}

.modal-close-btn {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 32px;
    height: 32px;
    border: none;
    border-radius: var(--radius-full);
    background: var(--bg-tertiary);
    cursor: pointer;
    font-size: var(--font-size-md);
    transition: all var(--transition-fast);
}

.modal-close-btn:hover {
    background: var(--danger);
    color: white;
}

/* ============================================
   Buttons
   ============================================ */

.primary-btn, .secondary-btn, .danger-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.primary-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.secondary-btn {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.secondary-btn:hover {
    background: var(--border-color);
}

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

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

/* ============================================
   Task Form
   ============================================ */

.task-form {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: 0 2px 8px var(--shadow-color);
}

.form-row {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.form-row input[type="text"] {
    flex: 1;
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-row input[type="text"]:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.2);
}

.category-select {
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    min-width: 150px;
    cursor: pointer;
}

.priority-row {
    align-items: center;
}

.priority-row label {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-right: var(--spacing-sm);
}

.priority-buttons {
    display: flex;
    gap: var(--spacing-xs);
}

.priority-btn {
    padding: var(--spacing-xs) var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-xl);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.priority-btn:hover {
    border-color: var(--text-muted);
}

.priority-btn.active {
    border-color: currentColor;
    font-weight: 600;
}

.priority-btn[data-priority="low"].active {
    background: rgba(52, 168, 83, 0.15);
    color: var(--priority-low);
    border-color: var(--priority-low);
}

.priority-btn[data-priority="medium"].active {
    background: rgba(251, 188, 4, 0.15);
    color: #b8860b;
    border-color: var(--priority-medium);
}

.priority-btn[data-priority="high"].active {
    background: rgba(234, 67, 53, 0.15);
    color: var(--priority-high);
    border-color: var(--priority-high);
}

/* Media Buttons */
.media-buttons {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.media-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.media-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(26, 115, 232, 0.05);
    transform: translateY(-2px);
}

.media-btn:active {
    transform: translateY(0);
}

.btn-icon {
    font-size: var(--font-size-xl);
}

.btn-text {
    font-size: var(--font-size-sm);
}

/* Preview Area */
.preview-area {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    position: relative;
}

.preview-area.hidden {
    display: none;
}

.preview-content {
    display: flex;
    justify-content: center;
    align-items: center;
}

.preview-content img {
    max-width: 100%;
    max-height: 300px;
    border-radius: var(--radius-md);
    object-fit: contain;
}

.preview-content img.hidden {
    display: none;
}

#audio-preview {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    width: 100%;
}

#audio-preview.hidden {
    display: none;
}

#audio-preview audio {
    flex: 1;
}

.clear-preview-btn {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    border: none;
    border-radius: var(--radius-sm);
    background: var(--danger);
    color: white;
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.clear-preview-btn:hover {
    background: var(--danger-dark);
}

/* Add Task Button */
.add-task-btn {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: white;
    font-size: var(--font-size-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: 0 4px 12px rgba(26, 115, 232, 0.3);
}

.add-task-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(26, 115, 232, 0.4);
}

.add-task-btn:active {
    transform: translateY(0);
}

.add-task-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Button auf Mobile immer sichtbar */
@media (max-width: 768px) {
    .add-task-btn {
        position: sticky;
        bottom: 0;
        margin-top: var(--spacing-md);
        z-index: 100;
    }
}

/* ============================================
   Camera Modal
   ============================================ */

.camera-container {
    width: 100%;
    max-width: 640px;
    background: #000;
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: relative;
}

#camera-preview {
    width: 100%;
    height: auto;
    display: block;
}

.camera-controls {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
}

.camera-control-btn {
    width: 50px;
    height: 50px;
    border: none;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.2);
    color: white;
    font-size: var(--font-size-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.camera-control-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.capture-btn {
    width: 70px;
    height: 70px;
    border: 4px solid white;
    border-radius: var(--radius-full);
    background: var(--danger);
    font-size: var(--font-size-xl);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.capture-btn:hover {
    transform: scale(1.1);
}

.capture-btn:active {
    transform: scale(0.95);
}

/* ============================================
   Voice Recording Modal
   ============================================ */

.voice-container {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    min-width: 300px;
}

.voice-visualizer {
    margin-bottom: var(--spacing-xl);
}

.recording-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.pulse {
    width: 80px;
    height: 80px;
    background: var(--danger);
    border-radius: var(--radius-full);
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.2);
        opacity: 0.7;
    }
}

#recording-time {
    font-size: var(--font-size-xxl);
    font-weight: 700;
    font-family: 'Courier New', monospace;
    color: var(--text-primary);
}

.voice-controls {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

.voice-control-btn {
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.voice-control-btn.stop {
    background: var(--danger);
    color: white;
}

.voice-control-btn.cancel {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

/* ============================================
   Filter Section
   ============================================ */

.filter-section {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    align-items: center;
}

.search-bar {
    flex: 1;
    min-width: 200px;
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    left: var(--spacing-md);
    color: var(--text-muted);
}

.search-bar input {
    width: 100%;
    padding: var(--spacing-md);
    padding-left: calc(var(--spacing-md) * 2 + 20px);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-xl);
    font-size: var(--font-size-md);
    background: var(--bg-secondary);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

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

.clear-search-btn {
    position: absolute;
    right: var(--spacing-md);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--spacing-xs);
}

.clear-search-btn.hidden {
    display: none;
}

.filter-buttons {
    display: flex;
    gap: var(--spacing-xs);
    background: var(--bg-secondary);
    padding: var(--spacing-xs);
    border-radius: var(--radius-xl);
}

.filter-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--radius-xl);
    background: transparent;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

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

.sort-options select {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    cursor: pointer;
}

/* ============================================
   Stats Bar
   ============================================ */

.stats-bar {
    display: flex;
    justify-content: space-around;
    align-items: center;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: 0 2px 8px var(--shadow-color);
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: var(--font-size-xxl);
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.progress-ring {
    position: relative;
    width: 60px;
    height: 60px;
}

.progress-ring svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.progress-bg {
    fill: none;
    stroke: var(--bg-tertiary);
    stroke-width: 3;
}

.progress-fill {
    fill: none;
    stroke: var(--success);
    stroke-width: 3;
    stroke-linecap: round;
    transition: stroke-dasharray 0.5s ease;
}

.progress-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: var(--font-size-sm);
    font-weight: 700;
    color: var(--success);
}

/* ============================================
   Tasks Container
   ============================================ */

.tasks-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.task-column {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: 0 2px 8px var(--shadow-color);
    min-height: 300px;
}

.column-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-color);
}

.column-header h2 {
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    flex: 1;
}

.task-count {
    background: var(--primary);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-xl);
    font-size: var(--font-size-sm);
    font-weight: 600;
    min-width: 28px;
    text-align: center;
}

.done-column .task-count {
    background: var(--success);
}

.clear-done-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: none;
    border-radius: var(--radius-sm);
    background: var(--danger);
    color: white;
    cursor: pointer;
    opacity: 0.7;
    transition: all var(--transition-fast);
}

.clear-done-btn:hover {
    opacity: 1;
}

.clear-done-btn.hidden {
    display: none;
}

.task-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    min-height: 100px;
}

.task-list.drag-over {
    background: rgba(26, 115, 232, 0.1);
    border-radius: var(--radius-md);
}

/* ============================================
   Task Item
   ============================================ */

.task-item {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    border-left: 4px solid var(--primary);
    position: relative;
}

.task-item:hover {
    transform: translateX(4px);
    box-shadow: 0 4px 12px var(--shadow-color);
}

.task-item.priority-low {
    border-left-color: var(--priority-low);
}

.task-item.priority-medium {
    border-left-color: var(--priority-medium);
}

.task-item.priority-high {
    border-left-color: var(--priority-high);
}

.task-item.done {
    opacity: 0.7;
    border-left-color: var(--success);
}

.task-item.done .task-name {
    text-decoration: line-through;
    color: var(--text-muted);
}

.task-item.dragging {
    opacity: 0.5;
    transform: rotate(2deg);
}

.task-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.task-name {
    font-weight: 500;
    color: var(--text-primary);
    word-break: break-word;
    flex: 1;
}

.task-category-badge {
    font-size: var(--font-size-xs);
    padding: 2px var(--spacing-sm);
    border-radius: var(--radius-xl);
    white-space: nowrap;
}

.task-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
}

.task-media {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.task-media img {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.task-media img:hover {
    transform: scale(1.1);
}

.task-media audio {
    height: 32px;
    width: 100%;
}

.task-actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
}

.task-action-btn {
    width: 44px;
    height: 44px;
    border: none;
    border-radius: var(--radius-full);
    background: var(--bg-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.task-action-btn:hover {
    transform: scale(1.1);
}

.task-action-btn.complete-btn:hover {
    background: var(--success);
    color: white;
}

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

.task-action-btn.undo-btn:hover {
    background: var(--warning);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-muted);
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

/* ============================================
   Task Detail Modal
   ============================================ */

.task-detail {
    max-width: 500px;
    width: 100%;
}

.task-detail-image {
    width: 100%;
    max-height: 400px;
    object-fit: contain;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.task-detail-name {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.task-detail-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.task-detail-info p {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* ============================================
   Confirm Dialog
   ============================================ */

.confirm-dialog {
    max-width: 400px;
    text-align: center;
}

.confirm-dialog h3 {
    color: var(--danger);
}

.confirm-dialog p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.confirm-dialog .modal-actions {
    justify-content: center;
}

/* ============================================
   Footer
   ============================================ */

.app-footer {
    text-align: center;
    padding: var(--spacing-lg);
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

.app-footer .version {
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-xs);
}

/* ============================================
   Hidden Utility Class
   ============================================ */

.hidden {
    display: none !important;
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 768px) {
    :root {
        --spacing-lg: 16px;
        --spacing-xl: 24px;
    }
    
    .container {
        padding: var(--spacing-sm);
    }
    
    .app-header {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .app-header h1 {
        font-size: var(--font-size-xl);
    }
    
    .form-row {
        flex-direction: column;
    }
    
    .category-select {
        width: 100%;
    }
    
    .priority-buttons {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .media-buttons {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-sm);
    }
    
    .media-btn {
        padding: var(--spacing-sm);
    }
    
    .filter-section {
        flex-direction: column;
    }
    
    .search-bar {
        width: 100%;
    }
    
    .filter-buttons {
        width: 100%;
        justify-content: center;
    }
    
    .stats-bar {
        flex-wrap: wrap;
        gap: var(--spacing-md);
    }
    
    .stat-item {
        min-width: 80px;
    }
    
    .tasks-container {
        grid-template-columns: 1fr;
    }
    
    .task-column {
        min-height: auto;
    }
    
    .toast-container {
        left: var(--spacing-md);
        right: var(--spacing-md);
        bottom: var(--spacing-md);
    }
    
    .toast {
        min-width: auto;
        max-width: none;
    }
    
    .modal-content {
        margin: var(--spacing-md);
        padding: var(--spacing-lg);
    }
    
    .camera-container {
        border-radius: 0;
        max-width: none;
    }
}

@media (max-width: 600px) {
    .camera-container {
        max-width: 100%;
        height: 100vh;
        border-radius: 0;
    }
    
    #camera-preview {
        width: 100%;
        height: calc(100vh - 100px);
        object-fit: cover;
    }
    
    .camera-controls {
        padding: 20px;
        padding-bottom: max(20px, env(safe-area-inset-bottom));
    }
}

@media (max-width: 480px) {
    .app-header h1 {
        font-size: var(--font-size-lg);
    }
    
    .header-actions {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .info-banner {
        flex-direction: column;
        text-align: center;
    }
    
    .category-header {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .small-btn {
        width: 100%;
    }
    
    .category-list {
        justify-content: center;
    }
    
    .category-tag {
        font-size: 0.75rem;
        padding: 4px 10px;
    }
    
    .priority-row {
        flex-wrap: wrap;
    }
    
    .priority-btn {
        padding: 4px 8px;
        font-size: 0.75rem;
    }
    
    .btn-text {
        display: none;
    }
    
    .btn-icon {
        font-size: var(--font-size-xl);
    }
    
    .voice-controls {
        flex-direction: column;
    }
    
    .voice-control-btn {
        width: 100%;
    }
    
    .toast-container {
        left: 8px;
        right: 8px;
        bottom: 8px;
    }
    
    .toast {
        font-size: 0.875rem;
        padding: 10px 14px;
    }
}

@media (max-width: 400px) {
    .media-buttons {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .media-btn {
        padding: 10px;
    }
}

@media (max-width: 380px) {
    .stats-bar {
        gap: 8px;
    }
    
    .stat-item {
        flex: 1 1 45%;
        min-width: 70px;
    }
    
    .stat-number {
        font-size: 1.25rem;
    }
    
    .progress-ring svg {
        width: 40px;
        height: 40px;
    }
}

/* ============================================
   Print Styles
   ============================================ */

@media print {
    .app-header,
    .info-banner,
    .task-form,
    .filter-section,
    .task-actions,
    .app-footer,
    .modal {
        display: none !important;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .container {
        max-width: none;
    }
    
    .task-column {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
    }
    
    .task-item {
        break-inside: avoid;
    }
}

/* ============================================
   Animations
   ============================================ */

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.task-item {
    animation: slideUp 0.3s ease;
}

.error-shake {
    animation: shake 0.3s ease;
}