/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colors */
    --primary: #007AFF;
    --primary-dark: #0051D5;
    --primary-light: rgba(0, 122, 255, 0.1);
    --success: #34C759;
    --success-light: rgba(52, 199, 89, 0.1);
    --warning: #FF9500;
    --warning-light: rgba(255, 149, 0, 0.1);
    --danger: #FF3B30;
    --danger-light: rgba(255, 59, 48, 0.1);
    
    /* Grays */
    --gray-50: #FAFAFA;
    --gray-100: #F2F2F7;
    --gray-200: #E5E5EA;
    --gray-300: #D1D1D6;
    --gray-400: #C7C7CC;
    --gray-500: #8E8E93;
    --gray-600: #636366;
    --gray-700: #48484A;
    --gray-800: #2C2C2E;
    --gray-900: #1C1C1E;
    
    /* Semantic Colors */
    --background: #000000;
    --surface: #1C1C1E;
    --surface-elevated: #2C2C2E;
    --surface-card: rgba(28, 28, 30, 0.8);
    --text-primary: #FFFFFF;
    --text-secondary: rgba(255, 255, 255, 0.6);
    --text-tertiary: rgba(255, 255, 255, 0.3);
    --separator: rgba(255, 255, 255, 0.1);
    --overlay: rgba(0, 0, 0, 0.5);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    
    /* Border Radius */
    --radius-xs: 4px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 24px;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
    --shadow-md: 0 3px 6px rgba(0, 0, 0, 0.15), 0 2px 4px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.15), 0 3px 6px rgba(0, 0, 0, 0.10);
    --shadow-xl: 0 15px 25px rgba(0, 0, 0, 0.15), 0 5px 10px rgba(0, 0, 0, 0.05);
    
    /* Touch Targets */
    --touch-target-min: 44px;
    --touch-target-preferred: 48px;
    
    /* Safe Area */
    --safe-area-top: env(safe-area-inset-top);
    --safe-area-bottom: env(safe-area-inset-bottom);
}

/* Light Mode (if needed later) */
@media (prefers-color-scheme: light) {
    :root {
        --background: #FFFFFF;
        --surface: #F2F2F7;
        --surface-elevated: #FFFFFF;
        --text-primary: #000000;
        --text-secondary: rgba(0, 0, 0, 0.6);
        --text-tertiary: rgba(0, 0, 0, 0.3);
        --separator: rgba(0, 0, 0, 0.1);
    }
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overscroll-behavior: none;
    touch-action: pan-y;
}

/* App Container */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
}

/* Header */
.app-header {
    position: sticky;
    top: 0;
    z-index: 100;
    padding-top: var(--safe-area-top);
}

.header-blur {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border-bottom: 1px solid var(--separator);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.3);
}

.header-content {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    min-height: 60px;
}

/* App Logo and Title */
.app-logo-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.app-logo {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
}

.app-title {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, #007AFF 0%, #34C759 33%, #FF9500 66%, #FF3B30 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
}

/* Icon Button */
.icon-button {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-light);
    border: none;
    color: var(--primary);
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.icon-button:hover {
    background-color: var(--primary);
    color: white;
    transform: scale(1.05);
}

.icon-button:active {
    transform: scale(0.95);
    background-color: var(--primary-dark);
}

/* Tab Bar */
.tab-bar {
    display: flex;
    background-color: var(--surface);
    border-bottom: 1px solid var(--separator);
    padding: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.tab-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-sm);
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    min-height: var(--touch-target-preferred);
    position: relative;
    min-width: 80px;
}

.tab-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 50%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary) 0%, var(--success) 100%);
    border-radius: 2px 2px 0 0;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.tab-item.active {
    color: var(--primary);
    background-color: var(--primary-light);
}

.tab-item.active::after {
    transform: translateX(-50%) scaleX(1);
}

.tab-icon {
    width: 26px;
    height: 26px;
    margin-bottom: var(--spacing-xs);
    transition: transform 0.2s ease;
}

.tab-item.active .tab-icon {
    transform: scale(1.1);
}

.tab-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

/* Main Content */
.main-content {
    flex: 1;
    position: relative;
    overflow-x: hidden;
}

.view-container {
    display: none;
    padding: var(--spacing-lg);
    padding-bottom: calc(var(--spacing-lg) + var(--safe-area-bottom));
    min-height: 100%;
}

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

/* Search */
.search-container {
    position: relative;
    margin-bottom: var(--spacing-lg);
}

.search-input {
    width: 100%;
    height: var(--touch-target-preferred);
    padding: 0 var(--spacing-lg);
    padding-left: 50px;
    background-color: var(--surface);
    border: 2px solid var(--separator);
    border-radius: var(--radius-xl);
    color: var(--text-primary);
    font-size: 17px;
    outline: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.search-input:focus {
    border-color: var(--primary);
    background-color: var(--surface-elevated);
    box-shadow: 0 0 0 4px var(--primary-light);
    transform: scale(1.02);
}

.search-input::placeholder {
    color: var(--text-tertiary);
}

.search-icon {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    pointer-events: none;
}

/* Filter Pills */
.filter-container {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.filter-container::-webkit-scrollbar {
    display: none;
}

.filter-pill {
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--surface);
    border: 2px solid var(--separator);
    border-radius: var(--radius-2xl);
    color: var(--text-secondary);
    font-size: 15px;
    font-weight: 600;
    white-space: nowrap;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    min-height: 38px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.filter-pill:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

.filter-pill.active {
    background: linear-gradient(135deg, var(--primary) 0%, var(--success) 100%);
    color: white;
    border-color: transparent;
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

/* Paint Grid */
.paint-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: var(--spacing-md);
    padding: var(--spacing-xs) 0;
}

/* Paint Card */
.paint-card {
    background-color: var(--surface-card);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--separator);
    position: relative;
    overflow: hidden;
}

.paint-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--primary-light) 0%, transparent 50%, var(--success-light) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.paint-card:hover::before {
    opacity: 1;
}

.paint-card:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary);
}

.paint-card:active {
    transform: translateY(-2px) scale(0.98);
}

.paint-color {
    width: 100%;
    height: 90px;
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 2px solid rgba(255, 255, 255, 0.1);
    z-index: 1;
}

.paint-status {
    position: absolute;
    top: var(--spacing-xs);
    right: var(--spacing-xs);
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid white;
}

.paint-status.available {
    background-color: var(--success);
}

.paint-status.low {
    background-color: var(--warning);
}

.paint-status.empty {
    background-color: var(--danger);
}

.paint-name {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.paint-code {
    font-size: 12px;
    color: var(--text-secondary);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.empty-icon {
    color: var(--text-tertiary);
    margin-bottom: var(--spacing-md);
}

.empty-text {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.empty-subtext {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Scanner View */
.scanner-container {
    display: flex;
    flex-direction: column;
    height: 100%;
}

/* Scanner Mode Toggle */
.scanner-mode-toggle {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-xs);
    background-color: var(--surface);
    border-radius: var(--radius-md);
}

.mode-button {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: none;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.mode-button.active {
    background-color: var(--primary);
    color: white;
}

.scanner-viewport {
    position: relative;
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
    aspect-ratio: 1;
    background-color: var(--surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.scanner-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.scanner-guide {
    position: absolute;
    inset: 20%;
    pointer-events: none;
}

.scanner-corner {
    position: absolute;
    width: 40px;
    height: 40px;
    border: 3px solid var(--primary);
}

.scanner-corner.tl {
    top: 0;
    left: 0;
    border-right: none;
    border-bottom: none;
}

.scanner-corner.tr {
    top: 0;
    right: 0;
    border-left: none;
    border-bottom: none;
}

.scanner-corner.bl {
    bottom: 0;
    left: 0;
    border-right: none;
    border-top: none;
}

.scanner-corner.br {
    bottom: 0;
    right: 0;
    border-left: none;
    border-top: none;
}

/* Color Picker Guide */
.color-picker-guide {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

.color-picker-crosshair {
    width: 60px;
    height: 60px;
    border: 3px solid white;
    border-radius: 50%;
    box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.5), 0 0 20px rgba(0, 0, 0, 0.5);
    position: relative;
}

.color-picker-crosshair::before,
.color-picker-crosshair::after {
    content: '';
    position: absolute;
    background-color: white;
}

.color-picker-crosshair::before {
    width: 2px;
    height: 20px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.color-picker-crosshair::after {
    width: 20px;
    height: 2px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* Color Preview */
.color-preview {
    margin: var(--spacing-lg) auto;
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    padding: var(--spacing-md);
    background-color: var(--surface);
    border-radius: var(--radius-md);
    max-width: 400px;
}

.preview-color {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-sm);
    border: 2px solid var(--separator);
}

.preview-info {
    flex: 1;
}

.preview-hex {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.preview-match {
    font-size: 14px;
    color: var(--text-secondary);
}

/* Scan Result */
.scan-result {
    margin: var(--spacing-lg) auto;
    padding: var(--spacing-lg);
    background-color: var(--surface);
    border-radius: var(--radius-lg);
    max-width: 400px;
    text-align: center;
}

.result-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

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

.result-swatch {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-md);
    border: 2px solid var(--separator);
}

.result-info {
    flex: 1;
    text-align: left;
}

.result-name {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.result-code {
    color: var(--text-secondary);
}

.scanner-controls {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
}

.scanner-hint {
    margin-top: var(--spacing-md);
    color: var(--text-secondary);
    text-align: center;
}

/* Stats View */
.stats-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background-color: var(--surface);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
}

.stat-value {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
}

.section-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

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

.category-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    background-color: var(--surface);
    border-radius: var(--radius-md);
}

.category-name {
    font-weight: 500;
}

.category-count {
    color: var(--text-secondary);
}

/* Buttons */
.primary-button {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    border: none;
    padding: var(--spacing-lg) var(--spacing-xl);
    border-radius: var(--radius-xl);
    font-size: 17px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    min-height: var(--touch-target-preferred);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.primary-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.6s;
}

.primary-button:hover::before {
    left: 100%;
}

.primary-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.primary-button:active {
    transform: translateY(0) scale(0.98);
    box-shadow: var(--shadow-sm);
}

.secondary-button {
    background-color: var(--surface);
    color: var(--text-primary);
    border: 2px solid var(--separator);
    padding: var(--spacing-lg) var(--spacing-xl);
    border-radius: var(--radius-xl);
    font-size: 17px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    min-height: var(--touch-target-preferred);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.secondary-button:hover {
    background-color: var(--surface-elevated);
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.secondary-button:active {
    transform: translateY(0) scale(0.98);
}

.danger-button {
    background: linear-gradient(135deg, var(--danger) 0%, #c82333 100%);
    color: white;
    border: none;
    padding: var(--spacing-lg) var(--spacing-xl);
    border-radius: var(--radius-xl);
    font-size: 17px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    min-height: var(--touch-target-preferred);
    box-shadow: var(--shadow-md);
}

.danger-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.danger-button:active {
    transform: translateY(0) scale(0.98);
    box-shadow: var(--shadow-sm);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1000;
}

.modal.active {
    display: flex;
    align-items: flex-end;
    justify-content: center;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    background-color: var(--surface-elevated);
    border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
    overflow: hidden;
    animation: slideUp 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-xl);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--separator);
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}

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

.modal-title {
    font-size: 20px;
    font-weight: 600;
}

.modal-form {
    padding: var(--spacing-lg);
    padding-bottom: calc(var(--spacing-lg) + var(--safe-area-bottom));
    overflow-y: auto;
}

/* Form Elements */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.form-input,
.form-select {
    width: 100%;
    height: var(--touch-target-preferred);
    padding: 0 var(--spacing-lg);
    background-color: var(--surface);
    border: 2px solid var(--separator);
    border-radius: var(--radius-xl);
    color: var(--text-primary);
    font-size: 17px;
    outline: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.form-input:focus,
.form-select:focus {
    border-color: var(--primary);
    background-color: var(--surface-elevated);
    box-shadow: 0 0 0 4px var(--primary-light);
    transform: scale(1.01);
}

.color-input-wrapper {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.color-picker {
    width: 50px;
    height: 50px;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
}

.radio-group {
    display: flex;
    gap: var(--spacing-md);
}

.radio-label {
    display: flex;
    align-items: center;
    cursor: pointer;
}

.radio-label input[type="radio"] {
    margin-right: var(--spacing-sm);
}

.radio-text {
    font-size: 16px;
}

.form-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xl);
    justify-content: space-between;
}

.form-actions button {
    flex: 1;
}

.form-actions .danger-button {
    flex: 0 0 auto;
    min-width: 100px;
    margin-right: auto;
    display: inline-block;
}

/* Responsive Design */

/* Small phones (up to 375px) */
@media (max-width: 375px) {
    .paint-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: var(--spacing-sm);
    }
    
    .app-title {
        font-size: 24px;
    }
    
    .app-logo {
        width: 28px;
        height: 28px;
    }
    
    .header-content {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .view-container {
        padding: var(--spacing-md);
    }
}

/* Regular phones (376px - 667px) */
@media (min-width: 376px) and (max-width: 667px) {
    .paint-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }
    
    .stats-container {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
}

/* Large phones / Small tablets (668px - 834px) */
@media (min-width: 668px) and (max-width: 834px) {
    .paint-grid {
        grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
        gap: var(--spacing-lg);
    }
    
    .stats-container {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--spacing-lg);
    }
    
    .tab-item {
        padding: var(--spacing-lg) var(--spacing-md);
        min-height: 60px;
    }
    
    .tab-icon {
        width: 28px;
        height: 28px;
    }
    
    .tab-label {
        font-size: 12px;
    }
}

/* Tablets (835px - 1024px) */
@media (min-width: 835px) and (max-width: 1024px) {
    .paint-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: var(--spacing-xl);
    }
    
    .stats-container {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--spacing-xl);
    }
    
    .modal-content {
        border-radius: var(--radius-2xl);
        margin: var(--spacing-2xl);
        max-width: 600px;
    }
    
    .modal.active {
        align-items: center;
    }
    
    .header-content {
        padding: var(--spacing-lg) var(--spacing-2xl);
    }
    
    .view-container {
        padding: var(--spacing-2xl);
    }
    
    .scanner-viewport {
        max-width: 500px;
    }
}

/* Large tablets / Small desktops (1025px - 1199px) */
@media (min-width: 1025px) and (max-width: 1199px) {
    .app-container {
        max-width: 1000px;
        margin: 0 auto;
        box-shadow: var(--shadow-lg);
        border-radius: var(--radius-2xl);
        overflow: hidden;
        margin-top: var(--spacing-lg);
    }
    
    .paint-grid {
        grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
        gap: var(--spacing-xl);
    }
    
    .stats-container {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--spacing-2xl);
    }
}

/* Desktops (1200px+) */
@media (min-width: 1200px) {
    .app-container {
        max-width: 1200px;
        margin: 0 auto;
        box-shadow: var(--shadow-xl);
        border-radius: var(--radius-2xl);
        overflow: hidden;
        margin-top: var(--spacing-xl);
    }
    
    .paint-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
        gap: var(--spacing-2xl);
    }
    
    .stats-container {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--spacing-2xl);
    }
    
    .header-content {
        padding: var(--spacing-xl) var(--spacing-2xl);
    }
    
    .view-container {
        padding: var(--spacing-2xl);
    }
}

/* Ultra-wide screens (1400px+) */
@media (min-width: 1400px) {
    .app-container {
        max-width: 1400px;
    }
    
    .paint-grid {
        grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    }
}

/* Landscape orientation optimizations */
@media (orientation: landscape) and (max-height: 500px) {
    .header-content {
        min-height: 50px;
        padding: var(--spacing-sm) var(--spacing-lg);
    }
    
    .app-title {
        font-size: 22px;
    }
    
    .tab-item {
        min-height: 40px;
        padding: var(--spacing-sm) 0;
    }
    
    .tab-icon {
        width: 20px;
        height: 20px;
        margin-bottom: 2px;
    }
    
    .tab-label {
        font-size: 10px;
    }
    
    .scanner-viewport {
        max-height: 300px;
    }
}

/* Manual Search Section */
.manual-search-section {
    background: var(--surface);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin: var(--spacing-xl) 0;
    border: 1px solid var(--separator);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.manual-search-section h3 {
    margin: 0 0 var(--spacing-lg) 0;
    color: var(--label-primary);
    font-size: 20px;
    font-weight: 600;
}

.manual-search-section h4 {
    margin: var(--spacing-xl) 0 var(--spacing-md) 0;
    color: var(--label-primary);
    font-size: 17px;
    font-weight: 500;
}

.search-controls {
    margin-bottom: var(--spacing-xl);
}

.search-input-group {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    align-items: center;
}

.search-input {
    flex: 1;
    min-width: 200px;
    padding: var(--spacing-lg);
    border: 1px solid var(--separator);
    border-radius: var(--radius-lg);
    font-size: 17px;
    background: var(--surface-elevated);
    color: var(--label-primary);
    transition: all 0.2s ease;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 20%, transparent);
}

.category-select {
    padding: var(--spacing-lg);
    border: 1px solid var(--separator);
    border-radius: var(--radius-lg);
    font-size: 17px;
    background: var(--surface-elevated);
    color: var(--label-primary);
    min-width: 140px;
    transition: all 0.2s ease;
}

.category-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 20%, transparent);
}

.search-button, .lookup-button {
    padding: var(--spacing-lg) var(--spacing-xl);
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    font-size: 17px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
    min-height: var(--touch-target-minimum);
}

.search-button:hover, .lookup-button:hover {
    background: color-mix(in srgb, var(--primary) 85%, black);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.search-button:active, .lookup-button:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

/* Search Results */
.search-results {
    margin: var(--spacing-xl) 0;
}

.search-results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--separator);
}

.search-results-header h4 {
    margin: 0;
    color: var(--label-primary);
    font-size: 17px;
    font-weight: 600;
}

.search-results-count {
    color: var(--label-secondary);
    font-size: 15px;
}

.search-results-list {
    max-height: 400px;
    overflow-y: auto;
    border: 1px solid var(--separator);
    border-radius: var(--radius-lg);
    background: var(--surface-elevated);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.search-result-item {
    display: flex;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--separator);
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.search-result-item:last-child {
    border-bottom: none;
}

.search-result-item:hover {
    background: color-mix(in srgb, var(--primary) 5%, var(--surface-elevated));
}

.search-result-color {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    border: 1px solid var(--separator);
    margin-right: var(--spacing-md);
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
}

.search-result-info {
    flex: 1;
}

.search-result-name {
    font-weight: 500;
    color: var(--label-primary);
    margin: 0 0 4px 0;
    font-size: 15px;
}

.search-result-details {
    display: flex;
    gap: var(--spacing-md);
    font-size: 13px;
    color: var(--label-secondary);
}

.search-result-code {
    font-family: 'SF Mono', Monaco, monospace;
    background: color-mix(in srgb, var(--separator) 30%, transparent);
    padding: 2px 6px;
    border-radius: 4px;
}

.search-result-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-shrink: 0;
}

.action-button {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 13px;
    border: 1px solid var(--separator);
    background: var(--surface);
    color: var(--label-primary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 500;
}

.action-button:hover {
    background: var(--surface-elevated);
    border-color: var(--primary);
    transform: translateY(-1px);
}

.action-button.primary {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.action-button.primary:hover {
    background: color-mix(in srgb, var(--primary) 85%, black);
}

/* Manual Barcode Section */
.manual-barcode-section {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--separator);
}

.barcode-input-group {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    flex-wrap: wrap;
}

.barcode-input {
    flex: 1;
    min-width: 200px;
    padding: var(--spacing-lg);
    border: 1px solid var(--separator);
    border-radius: var(--radius-lg);
    font-size: 17px;
    font-family: 'SF Mono', Monaco, monospace;
    background: var(--surface-elevated);
    color: var(--label-primary);
    transition: all 0.2s ease;
}

.barcode-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 20%, transparent);
}

.barcode-result {
    margin-top: var(--spacing-md);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--separator);
    background: var(--surface-elevated);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.barcode-result.success {
    border-color: var(--success);
    background: color-mix(in srgb, var(--success) 10%, var(--surface-elevated));
}

.barcode-result.error {
    border-color: var(--danger);
    background: color-mix(in srgb, var(--danger) 10%, var(--surface-elevated));
}

/* High DPI / Retina display optimizations */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .app-logo,
    .tab-icon,
    .empty-icon {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* Mobile responsive adjustments for search */
@media (max-width: 768px) {
    .search-input-group {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-input, .category-select {
        min-width: auto;
    }
    
    .barcode-input-group {
        flex-direction: column;
        align-items: stretch;
    }
    
    .barcode-input {
        min-width: auto;
    }
    
    .search-result-details {
        flex-direction: column;
        gap: 4px;
    }
    
    .search-result-actions {
        margin-top: var(--spacing-sm);
        flex-wrap: wrap;
    }
    
    .manual-search-section {
        padding: var(--spacing-lg);
        margin: var(--spacing-lg) 0;
    }
}

/* Status Check Modal Styles */
.status-check-intro {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    font-size: 16px;
    line-height: 1.5;
}

.status-check-colors {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    max-height: 60vh;
    overflow-y: auto;
    margin-bottom: var(--spacing-xl);
}

.status-check-color {
    background: var(--surface);
    border: 1px solid var(--separator);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.status-color-preview {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.status-color-swatch {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    border: 1px solid var(--separator);
    box-shadow: var(--shadow-sm);
    flex-shrink: 0;
}

.status-color-info {
    flex: 1;
}

.status-color-name {
    margin: 0 0 4px 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.status-color-code {
    margin: 0 0 8px 0;
    font-size: 14px;
    color: var(--text-secondary);
    font-family: 'SF Mono', Monaco, monospace;
}

.status-current {
    margin: 0;
    font-size: 14px;
    color: var(--text-secondary);
}

.current-status {
    font-weight: 500;
    padding: 2px 8px;
    border-radius: var(--radius-xs);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.current-status.available {
    color: var(--success);
    background: var(--success-light);
}

.current-status.low {
    color: var(--warning);
    background: var(--warning-light);
}

.current-status.empty {
    color: var(--danger);
    background: var(--danger-light);
}

.status-radio-group {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.status-radio-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    border: 1px solid var(--separator);
    background: var(--surface-elevated);
    transition: all 0.2s ease;
    flex: 1;
    min-width: 80px;
    justify-content: center;
}

.status-radio-label:hover {
    background: var(--surface-card);
    border-color: var(--primary);
}

.status-radio-label input[type="radio"] {
    width: 16px;
    height: 16px;
    border: 2px solid var(--separator);
    border-radius: 50%;
    background: transparent;
    margin: 0;
    cursor: pointer;
    position: relative;
    appearance: none;
    -webkit-appearance: none;
}

.status-radio-label input[type="radio"]:checked {
    border-color: var(--primary);
    background: var(--primary);
}

.status-radio-label input[type="radio"]:checked::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: white;
}

.status-radio-text {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

/* Mobile optimizations for status check */
@media (max-width: 768px) {
    .status-radio-group {
        gap: var(--spacing-sm);
    }
    
    .status-radio-label {
        padding: var(--spacing-md);
        min-width: auto;
        flex: 1;
    }
    
    .status-radio-text {
        font-size: 13px;
    }
    
    .status-color-preview {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .status-color-swatch {
        width: 40px;
        height: 40px;
    }
}

/* Duplicate Confirmation Dialog Styles */
.duplicate-warning {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--warning-light);
    border: 1px solid var(--warning);
    border-radius: var(--radius-lg);
}

.warning-icon {
    margin-bottom: var(--spacing-md);
    color: var(--warning);
}

.duplicate-message {
    color: var(--text-primary);
    font-size: 16px;
    font-weight: 500;
    text-align: center;
    margin: 0;
}

.duplicate-comparison {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.duplicate-color-card {
    background: var(--surface);
    border: 1px solid var(--separator);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.duplicate-color-card.existing {
    border-color: var(--warning);
    background: color-mix(in srgb, var(--warning) 5%, var(--surface));
}

.duplicate-color-card h4 {
    margin: 0 0 var(--spacing-md) 0;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.duplicate-color-preview {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.duplicate-color-swatch {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    border: 1px solid var(--separator);
    box-shadow: var(--shadow-sm);
    flex-shrink: 0;
}

.duplicate-color-info {
    flex: 1;
}

.duplicate-color-name {
    margin: 0 0 4px 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.duplicate-color-code {
    margin: 0 0 4px 0;
    font-size: 14px;
    color: var(--text-secondary);
    font-family: 'SF Mono', Monaco, monospace;
}

.duplicate-color-category {
    margin: 0 0 4px 0;
    font-size: 14px;
    color: var(--text-secondary);
}

.duplicate-color-status {
    margin: 0;
    font-size: 14px;
    color: var(--text-secondary);
}

.status-badge {
    font-weight: 500;
    padding: 2px 8px;
    border-radius: var(--radius-xs);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-badge.available {
    color: var(--success);
    background: var(--success-light);
}

.status-badge.low {
    color: var(--warning);
    background: var(--warning-light);
}

.status-badge.empty {
    color: var(--danger);
    background: var(--danger-light);
}

.duplicate-question {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-primary);
    text-align: center;
    margin: 0;
}

/* Mobile optimizations for duplicate dialog */
@media (max-width: 768px) {
    .duplicate-comparison {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .duplicate-color-preview {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .duplicate-color-swatch {
        width: 40px;
        height: 40px;
    }
    
    .duplicate-warning {
        padding: var(--spacing-md);
    }
}