/* Image Converter Styles - Dark Mode */

:root {
    --bg-color: #f8f9fa;
    --card-bg: #ffffff;
    --text-color: #333333;
    --primary-color: #4361ee;
    --primary-hover: #3a56d4;
    --secondary-color: #e9ecef;
    --border-color: #dee2e6;
    --success-color: #2ecc71;
    --error-color: #e74c3c;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

/* Dark Mode */
.dark {
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --text-color: #e0e0e0;
    --primary-color: #4361ee;
    --primary-hover: #5a72f5;
    --secondary-color: #2d2d2d;
    --border-color: #444444;
    --success-color: #2ecc71;
    --error-color: #e74c3c;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

/* Base Styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 0;
    transition: background-color 0.3s, color 0.3s;
}

.container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header Styles */
header {
    background-color: var(--card-bg);
    box-shadow: var(--shadow);
    padding: 1rem 0;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 {
    margin: 0;
    color: var(--text-color);
    font-size: 1.5rem;
}

.dark-mode-toggle {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-color);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s;
}

.dark-mode-toggle:hover {
    background-color: var(--secondary-color);
}

.sun-icon, .moon-icon {
    width: 24px;
    height: 24px;
}

/* Main Content */
main {
    flex: 1;
    margin: 0 auto;
    padding: 2rem 0;
    width: 100%;
}

.card {
    background-color: var(--card-bg);
    border-radius: 8px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

/* Step Indicator */
.step-indicator {
    background-color: var(--secondary-color);
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.step-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 600px;
    margin: 0 auto;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    z-index: 1;
}

.step-number {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: var(--secondary-color);
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    margin-bottom: 0.5rem;
    transition: background-color 0.3s, color 0.3s, border-color 0.3s;
}

.step-number.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.step-label {
    font-size: 0.875rem;
    font-weight: 500;
}

.step-line {
    flex: 1;
    height: 2px;
    background-color: var(--border-color);
    position: relative;
    margin: 0 0.5rem;
}

.step-line-progress {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0;
    background-color: var(--primary-color);
    transition: width 0.3s ease-in-out;
}

.step-line-progress.complete {
    width: 100%;
}

/* Step Content */
.step-content {
    padding: 2rem;
}

/* Upload Area */
.drop-area {
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s;
    cursor: pointer;
}

.drop-area:hover, .drop-area.drag-active {
    border-color: var(--primary-color);
    background-color: rgba(67, 97, 238, 0.05);
}

.upload-icon {
    width: 64px;
    height: 64px;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.drop-area h2 {
    margin-top: 0;
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

.file-input-label {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 4px;
    cursor: pointer;
    margin: 1rem 0;
    transition: background-color 0.2s;
}

.file-input-label:hover {
    background-color: var(--primary-hover);
}

.file-input {
    display: none;
}

.file-info {
    font-size: 0.875rem;
    color: var(--text-color);
    opacity: 0.7;
}

/* Error Message */
.error-message {
    background-color: rgba(231, 76, 60, 0.1);
    border-left: 4px solid var(--error-color);
    padding: 1rem;
    margin-top: 1rem;
    border-radius: 4px;
    color: var(--error-color);
}

/* Selected Files */
.selected-files {
    margin-top: 2rem;
}

.files-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.files-header h3 {
    margin: 0;
    font-size: 1.125rem;
}

.clear-button {
    background: none;
    border: none;
    color: var(--error-color);
    cursor: pointer;
    font-size: 0.875rem;
}

.clear-button:hover {
    text-decoration: underline;
}

.files-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.file-item {
    border-radius: 8px;
    overflow: hidden;
    background-color: var(--secondary-color);
}

.file-preview {
    position: relative;
    padding-bottom: 100%;
    background-color: #f0f0f0;
}

.dark .file-preview {
    background-color: #2a2a2a;
}

.file-preview img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.remove-file {
    position: absolute;
    top: 0.25rem;
    right: 0.25rem;
    background-color: rgba(231, 76, 60, 0.8);
    color: white;
    border: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s;
}

.file-preview:hover .remove-file {
    opacity: 1;
}

.remove-file svg {
    width: 16px;
    height: 16px;
}

.file-info {
    padding: 0.5rem;
    font-size: 0.75rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-meta {
    padding: 0 0.5rem 0.5rem;
    font-size: 0.7rem;
    color: var(--text-color);
    opacity: 0.7;
}

/* Action Buttons */
.action-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1rem;
}

.primary-button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
}

.primary-button:hover {
    background-color: var(--primary-hover);
}

.secondary-button {
    background-color: var(--secondary-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
}

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

/* Format Options */
.setting-group {
    margin-bottom: 1.5rem;
}

.setting-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.format-options {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.5rem;
}

.format-option {
    background-color: var(--secondary-color);
    border: 1px solid var(--border-color);
    padding: 0.5rem;
    border-radius: 4px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
}

.format-option:hover {
    background-color: var(--border-color);
}

.format-option.selected {
    background-color: rgba(67, 97, 238, 0.1);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* Quality Slider */
.quality-slider {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: var(--secondary-color);
    background-image: linear-gradient(to right, var(--primary-color), var(--primary-color));
    background-repeat: no-repeat;
    outline: none;
    -webkit-appearance: none;
    appearance: none;
    margin: 1rem 0 0.5rem;
}

.quality-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    border: 2px solid var(--card-bg);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.quality-slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    border: 2px solid var(--card-bg);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.slider-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-color);
    opacity: 0.7;
}

/* Checkbox */
.checkbox-group {
    display: flex;
    align-items: center;
}

.checkbox {
    margin-right: 0.5rem;
    width: 18px;
    height: 18px;
    accent-color: var(--primary-color);
}

.checkbox-label {
    font-size: 0.875rem;
}

/* Conversion Progress */
.conversion-progress {
    text-align: center;
}

.progress-container {
    margin: 2rem 0;
}

.progress-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.progress-bar-container {
    width: 100%;
    height: 8px;
    background-color: var(--secondary-color);
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background-color: var(--primary-color);
    border-radius: 4px;
    transition: width 0.3s ease-out;
}

.progress-message {
    font-style: italic;
    font-size: 0.875rem;
    color: var(--text-color);
    opacity: 0.7;
}

/* Conversion Complete */
.conversion-complete {
    text-align: center;
}

.success-message {
    margin-bottom: 2rem;
}

.success-icon {
    width: 64px;
    height: 64px;
    margin-bottom: 1rem;
    color: var(--success-color);
}

.format-highlight {
    font-weight: bold;
}

/* Download Options */
.download-options {
    margin-bottom: 2rem;
}

.download-all-button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
    margin-bottom: 1rem;
}

.download-all-button:hover {
    background-color: var(--primary-hover);
}

.download-all-button svg {
    width: 20px;
    height: 20px;
    margin-right: 0.5rem;
}

.individual-downloads {
    margin-top: 1.5rem;
}

.individual-downloads p {
    margin-bottom: 0.75rem;
    font-size: 0.875rem;
}

.download-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.download-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--secondary-color);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.download-item:hover {
    background-color: var(--border-color);
}

.download-item svg {
    width: 16px;
    height: 16px;
    color: var(--primary-color);
}

.start-over {
    margin-top: 2rem;
}

/* Footer */
footer {
    background-color: var(--card-bg);
    padding: 1.5rem 0;
    margin-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-color);
    opacity: 0.8;
}

.footer-content p {
    margin: 0.5rem 0;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .format-options {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .files-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }
    
    .action-buttons {
        flex-direction: column;
    }
    
    .action-buttons button {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .step-label {
        display: none;
    }
    
    .files-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}