/* Modern Image Compressor - Main Stylesheet */

/* Base Styles and CSS Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

:root {
    --primary-color: #000000;
    --secondary-color: #333333;
    --accent-color: #666666;
    --success-color: #000000;
    --warning-color: #666666;
    --danger-color: #000000;
    --light-color: #f8f9fa;
    --dark-color: #000000;
    --gray-color: #888888;
    --border-radius: 8px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

body {
    background-color: #ffffff;
    color: var(--dark-color);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    margin-bottom: 0.5rem;
    font-weight: 600;
    line-height: 1.2;
}

h1 {
    font-size: 2.5rem;
    color: var(--dark-color);
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

h4 {
    font-size: 1.2rem;
}

p {
    margin-bottom: 1rem;
}

/* Layout */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
}

header {
    background-color: white;
    text-align: center;
    padding: 2rem 1rem;
    box-shadow: var(--box-shadow);
}

header p {
    color: var(--gray-color);
}

main {
    flex: 1;
    padding: 2rem 0;
}

footer {
    background-color: white;
    text-align: center;
    padding: 1rem;
    margin-top: auto;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
}

/* Sections */
section {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 2rem;
    margin-bottom: 2rem;
}

/* Upload Section */
.upload-container {
    border: 2px dashed var(--dark-color);
    border-radius: var(--border-radius);
    padding: 3rem 2rem;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
}

.upload-container:hover {
    border-color: var(--secondary-color);
    background-color: rgba(0, 0, 0, 0.05);
}

.upload-container i {
    font-size: 3rem;
    color: var(--dark-color);
    margin-bottom: 1rem;
}

.upload-btn {
    display: inline-block;
    background-color: var(--dark-color);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    margin: 1rem 0;
    cursor: pointer;
    transition: var(--transition);
}

.upload-btn:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
}

.supported-formats {
    color: var(--gray-color);
    font-size: 0.9rem;
}

/* Controls Section */
.controls-section {
    display: none; /* Hidden by default, shown via JavaScript */
}

.control-group {
    margin-bottom: 2rem;
}

.control {
    margin-bottom: 1.5rem;
}

.control label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--dark-color);
}

/* Styling for inline labels (used with checkboxes and radio buttons) */
input[type="checkbox"] + label,
input[type="radio"] + label {
    display: inline-block;
    vertical-align: middle;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
}

input[type="checkbox"]:checked + label,
input[type="radio"]:checked + label {
    color: var(--dark-color);
}

input[type="range"] {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: #ddd;
    outline: none;
    -webkit-appearance: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--dark-color);
    cursor: pointer;
}

/* Custom Checkbox Styling */
input[type="checkbox"] {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border: 2px solid var(--dark-color);
    border-radius: 4px;
    margin-right: 0.5rem;
    position: relative;
    cursor: pointer;
    vertical-align: middle;
    transition: var(--transition);
}

input[type="checkbox"]:checked {
    background-color: var(--dark-color);
}

input[type="checkbox"]:checked::after {
    content: '✓';
    position: absolute;
    color: white;
    font-size: 14px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

input[type="checkbox"]:hover {
    border-color: var(--secondary-color);
}

input[type="checkbox"]:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.2);
}

.resize-options {
    display: none; /* Hidden by default, shown via JavaScript */
    margin-top: 1rem;
    padding: 1rem;
    background-color: #f8f9fa;
    border-radius: var(--border-radius);
}

.resize-option {
    margin-bottom: 1rem;
}

/* Custom Radio Button Styling */
input[type="radio"] {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border: 2px solid var(--dark-color);
    border-radius: 50%;
    margin-right: 0.5rem;
    position: relative;
    cursor: pointer;
    vertical-align: middle;
    transition: var(--transition);
}

input[type="radio"]:checked {
    border: 2px solid var(--dark-color);
}

input[type="radio"]:checked::after {
    content: '';
    position: absolute;
    width: 10px;
    height: 10px;
    background-color: var(--dark-color);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

input[type="radio"]:hover {
    border-color: var(--secondary-color);
}

input[type="radio"]:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.2);
}

.dimension-inputs, .percentage-input {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 0.5rem;
}

.dimension-input {
    flex: 1;
    min-width: 120px;
}

.maintain-aspect {
    width: 100%;
    margin-top: 0.5rem;
}

input[type="number"] {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
}

select {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    background-color: white;
}

/* Buttons */
.action-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

button {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
}

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

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

.secondary-btn {
    background-color: var(--light-color);
    color: var(--dark-color);
    border: 1px solid #ddd;
}

.secondary-btn:hover {
    background-color: #e9ecef;
}

.secondary-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.tertiary-btn {
    background-color: transparent;
    color: var(--gray-color);
}

.tertiary-btn:hover {
    color: var(--dark-color);
    background-color: #f8f9fa;
}

/* Preview Section */
.preview-section {
    display: none; /* Hidden by default, shown via JavaScript */
}

.preview-container {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
}

.preview-card {
    flex: 1;
    min-width: 300px;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    overflow: hidden;
}

.preview-card h4 {
    padding: 1rem;
    background-color: #f8f9fa;
    border-bottom: 1px solid #ddd;
}

.preview-image-container {
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background-color: #f8f9fa;
    background-image: linear-gradient(45deg, #ddd 25%, transparent 25%, transparent 75%, #ddd 75%, #ddd),
                      linear-gradient(45deg, #ddd 25%, transparent 25%, transparent 75%, #ddd 75%, #ddd);
    background-size: 20px 20px;
    background-position: 0 0, 10px 10px;
}

.preview-image-container img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.file-info {
    padding: 1rem;
    background-color: white;
    border-top: 1px solid #ddd;
}

.file-info p {
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.file-info p:last-child {
    margin-bottom: 0;
}

/* Batch Processing Section */
.batch-section {
    display: none; /* Hidden by default, shown via JavaScript */
}

.batch-progress {
    margin-bottom: 1.5rem;
}

.progress-bar {
    height: 10px;
    background-color: #e9ecef;
    border-radius: 5px;
    margin-bottom: 0.5rem;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background-color: var(--dark-color);
    width: 0%; /* Updated via JavaScript */
    transition: width 0.3s ease;
}

.batch-results {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

.batch-item {
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    overflow: hidden;
}

.batch-item-preview {
    height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f8f9fa;
}

.batch-item-preview img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.batch-item-info {
    padding: 0.75rem;
    font-size: 0.8rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    h3 {
        font-size: 1.2rem;
    }
    
    section {
        padding: 1.5rem;
    }
    
    .upload-container {
        padding: 2rem 1rem;
    }
    
    .preview-card {
        min-width: 100%;
    }
    
    .preview-image-container {
        height: 200px;
    }
    
    .action-buttons {
        flex-direction: column;
    }
    
    .action-buttons button {
        width: 100%;
    }
}

/* Drag and Drop Highlight */
.highlight {
    border-color: var(--secondary-color);
    background-color: rgba(0, 0, 0, 0.1);
}

/* Animation for Upload Icon */
@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.upload-container:hover i {
    animation: bounce 1s infinite;
}

/* Tooltip Styles */
.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip .tooltip-text {
    visibility: hidden;
    width: 200px;
    background-color: var(--dark-color);
    color: white;
    text-align: center;
    border-radius: 6px;
    padding: 0.5rem;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    transition: opacity 0.3s;
}

.tooltip:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
}