/* Color Picker & Palette Tool - Light Theme */

/* Tool-specific variables */
:root {
    --tool-bg: var(--bg-primary);
    --tool-border: var(--border-color);
    --tool-border-hover: var(--border-color);
    --tool-text: var(--text-primary);
    --tool-text-secondary: var(--text-muted);
    --tool-input-bg: var(--bg-primary);
    --tool-input-border: var(--border-color);
    --tool-input-focus: #3b82f6;
    --tool-button-bg: var(--bg-secondary);
    --tool-button-hover: var(--bg-secondary);
    --tool-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --tool-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}
/* Dark mode overrides */
[data-theme="dark"] {
    --tool-bg: #0f172a;
    --tool-border: #334155;
    --tool-border-hover: #475569;
    --tool-text: #f8fafc;
    --tool-text-secondary: #94a3b8;
    --tool-input-bg: #1e293b;
    --tool-input-border: #334155;
    --tool-button-bg: #1e293b;
    --tool-button-hover: #334155;
    --tool-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.3);
    --tool-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
    --surface-color: #1e293b;
    --surface-hover: #334155;
    --background-color: #0f172a;
    --text-color: #f8fafc;
    --status-info: rgba(96, 165, 250, 0.2);
    --status-success: rgba(34, 197, 94, 0.2);
    --status-error: rgba(248, 113, 113, 0.2);
    --bg-color: #0f172a;
}

/* Dark mode element overrides */
[data-theme="dark"] .tool-card {
    background: var(--bg-card, #1e293b);
    border-color: var(--border-color, #334155);
}

[data-theme="dark"] .tool-hero {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
}

[data-theme="dark"] input,
[data-theme="dark"] select,
[data-theme="dark"] textarea {
    background: var(--input-bg, #1e293b);
    color: var(--text-primary, #f8fafc);
    border-color: var(--border-color, #334155);
}

[data-theme="dark"] input::placeholder,
[data-theme="dark"] textarea::placeholder {
    color: var(--text-muted, #64748b);
}

[data-theme="dark"] .tab-btn.active {
    color: white;
}

[data-theme="dark"] label {
    color: var(--text-primary, #f8fafc);
}

[data-theme="dark"] h1, [data-theme="dark"] h2, [data-theme="dark"] h3,
[data-theme="dark"] h4, [data-theme="dark"] h5, [data-theme="dark"] h6 {
    color: var(--text-primary, #f8fafc);
}

[data-theme="dark"] p {
    color: var(--text-secondary, #cbd5e1);
}


/* Tool Hero */
.tool-hero {
    background: linear-gradient(135deg, #fdf2f8 0%, #fce7f3 100%);
    padding: var(--space-16) 0 var(--space-12);
    border-bottom: 1px solid var(--tool-border);
}

.tool-hero-content {
    text-align: center;
}

/* .tool-icon-large - using global style */

.tool-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--tool-text);
    margin-bottom: var(--space-3);
}

.tool-description {
    font-size: 1.125rem;
    color: var(--tool-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Tool Interface */
.tool-interface {
    padding: var(--space-12) 0;
    background: var(--color-gray-50);
}

/* Upload Section */
.upload-section {
    background: var(--tool-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--tool-border);
    margin-bottom: var(--space-8);
    box-shadow: var(--tool-shadow);
}

.upload-area {
    padding: var(--space-12);
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 2px dashed var(--tool-border);
    border-radius: var(--radius-lg);
    margin: var(--space-6);
}

.upload-area:hover {
    border-color: var(--tool-input-focus);
    background: var(--bg-secondary);
}

.upload-area.dragover {
    border-color: var(--tool-input-focus);
    background: var(--color-blue-soft);
}

.upload-icon {
    font-size: 3rem;
    margin-bottom: var(--space-4);
    color: var(--tool-text-secondary);
}

.upload-text h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--tool-text);
    margin-bottom: var(--space-2);
}

.upload-text p {
    color: var(--tool-text-secondary);
    margin-bottom: var(--space-4);
}

.browse-link {
    color: var(--tool-input-focus);
    font-weight: 500;
    cursor: pointer;
}

.browse-link:hover {
    text-decoration: underline;
}

.upload-formats {
    font-size: 0.875rem;
    color: var(--tool-text-secondary);
}

.upload-error {
    padding: var(--space-4);
    background: var(--color-red-soft);
    color: var(--danger-color);
    border-top: 1px solid var(--tool-border);
    font-size: 0.875rem;
    display: none;
}

.upload-error.show {
    display: block;
}

/* Main Content */
.main-content {
    background: var(--tool-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--tool-border);
    box-shadow: var(--tool-shadow);
    overflow: hidden;
}

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

.content-layout {
    display: grid;
    grid-template-columns: 1fr;
}

@media (min-width: 1024px) {
    .content-layout {
        grid-template-columns: 1fr 350px;
    }
}

/* Canvas Section */
.canvas-section {
    padding: var(--space-6);
    border-bottom: 1px solid var(--tool-border);
}

@media (min-width: 1024px) {
    .canvas-section {
        border-bottom: none;
        border-right: 1px solid var(--tool-border);
    }
}

.canvas-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-4);
}

.canvas-header h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--tool-text);
    margin: 0;
}

.canvas-controls {
    display: flex;
    gap: var(--space-2);
}

.canvas-container {
    position: relative;
    text-align: center;
    border: 1px solid var(--tool-border);
    border-radius: var(--radius-base);
    overflow: hidden;
    background: var(--color-gray-50);
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

#imageCanvas {
    max-width: 100%;
    max-height: 500px;
    cursor: crosshair;
    display: block;
}

.crosshair {
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid var(--bg-primary);
    border-radius: 50%;
    pointer-events: none;
    display: none;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.3);
}

.color-preview {
    position: absolute;
    top: 10px;
    left: 10px;
    background: var(--tool-bg);
    border: 1px solid var(--tool-border);
    border-radius: var(--radius-base);
    padding: var(--space-3);
    display: none;
    box-shadow: var(--tool-shadow);
}

.preview-color {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-base);
    border: 1px solid var(--tool-border);
    margin-bottom: var(--space-2);
}

.preview-coords {
    font-size: 0.75rem;
    color: var(--tool-text-secondary);
    text-align: center;
}

.canvas-info {
    text-align: center;
    margin-top: var(--space-3);
    font-size: 0.875rem;
    color: var(--tool-text-secondary);
}

/* Sidebar */
.sidebar {
    padding: var(--space-6);
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

/* Current Color */
.current-color-section h3,
.palette-section h3,
.picked-colors-section h3,
.export-section h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--tool-text);
    margin-bottom: var(--space-4);
}

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

.color-swatch {
    width: 100%;
    height: 60px;
    border-radius: var(--radius-base);
    border: 1px solid var(--tool-border);
    background: var(--bg-tertiary);
}

.color-values {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.color-value {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.color-value label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--tool-text);
    min-width: 40px;
}

.color-value input {
    flex: 1;
    padding: var(--space-2);
    border: 1px solid var(--tool-input-border);
    border-radius: var(--radius-base);
    background: var(--tool-input-bg);
    color: var(--tool-text);
    font-size: 0.75rem;
    font-family: 'Courier New', Courier, monospace;
}

.copy-btn {
    padding: var(--space-1);
    border: 1px solid var(--tool-input-border);
    border-radius: var(--radius-base);
    background: var(--tool-button-bg);
    color: var(--tool-text);
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.2s ease;
    min-width: 30px;
}

.copy-btn:hover {
    background: var(--tool-button-hover);
    border-color: var(--tool-border-hover);
}

/* Palette Section */
.palette-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-4);
}

.palette-header h3 {
    margin-bottom: 0;
}

.palette-container {
    min-height: 100px;
    border: 1px solid var(--tool-border);
    border-radius: var(--radius-base);
    padding: var(--space-4);
}

.palette-placeholder {
    text-align: center;
    color: var(--tool-text-secondary);
    font-size: 0.875rem;
    padding: var(--space-8) 0;
}

.palette-colors {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(40px, 1fr));
    gap: var(--space-2);
}

.palette-color {
    aspect-ratio: 1;
    border-radius: var(--radius-base);
    border: 1px solid var(--tool-border);
    cursor: pointer;
    transition: transform 0.2s ease;
    position: relative;
}

.palette-color:hover {
    transform: scale(1.1);
    z-index: 10;
}

/* Picked Colors */
.picked-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-4);
}

.picked-header h3 {
    margin-bottom: 0;
}

.picked-colors {
    min-height: 80px;
    border: 1px solid var(--tool-border);
    border-radius: var(--radius-base);
    padding: var(--space-3);
}

.picked-placeholder {
    text-align: center;
    color: var(--tool-text-secondary);
    font-size: 0.875rem;
    padding: var(--space-4) 0;
}

.picked-color-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.picked-color {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-base);
    border: 1px solid var(--tool-border);
    cursor: pointer;
    transition: transform 0.2s ease;
    position: relative;
}

.picked-color:hover {
    transform: scale(1.2);
}

/* Export Section */
.export-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.export-format {
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--tool-input-border);
    border-radius: var(--radius-base);
    background: var(--tool-input-bg);
    color: var(--tool-text);
    font-size: 0.875rem;
    cursor: pointer;
}

/* Buttons */
.btn-primary {
    padding: var(--space-3) var(--space-4);
    background: var(--color-blue);
    color: var(--bg-primary);
    border: none;
    border-radius: var(--radius-base);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    width: 100%;
}

.btn-primary:hover {
    background: var(--primary-color);
    transform: translateY(-1px);
    box-shadow: var(--tool-shadow-lg);
}

.btn-secondary {
    padding: var(--space-2) var(--space-3);
    background: var(--tool-button-bg);
    color: var(--tool-text);
    border: 1px solid var(--tool-input-border);
    border-radius: var(--radius-base);
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

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

.btn-icon {
    font-size: 1rem;
}

/* Instructions & Features - same as other tools */
.instructions-section {
    padding: var(--space-16) 0;
    background: var(--tool-bg);
}

.section-title {
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    color: var(--tool-text);
    margin-bottom: var(--space-12);
}

.instructions-grid {
    display: grid;
    gap: var(--space-8);
    grid-template-columns: 1fr;
}

@media (min-width: 768px) {
    .instructions-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .instructions-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

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

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

.instruction-item h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--tool-text);
    margin-bottom: var(--space-3);
}

.instruction-item p {
    color: var(--tool-text-secondary);
    line-height: 1.6;
    font-size: 0.875rem;
}

.features-section {
    padding: var(--space-16) 0;
    background: var(--color-gray-50);
}

.features-grid {
    display: grid;
    gap: var(--space-6);
    grid-template-columns: 1fr;
}

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.feature-item {
    text-align: center;
    padding: var(--space-4);
    background: var(--tool-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--tool-border);
    box-shadow: var(--tool-shadow);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: var(--space-3);
    display: block;
}

.feature-item h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--tool-text);
    margin-bottom: var(--space-2);
}

.feature-item p {
    color: var(--tool-text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
}

/* Hidden state utility */
.hidden {
    display: none !important;
}