* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

:root {
    --primary-color: #4361ee;
    --primary-hover: #3a56d4;
    --secondary-color: #4895ef;
    --accent-color: #3f37c9;
    --light-bg: #f8faff;
    --dark-bg: #2b2d42;
    --text-color: #2b2d42;
    --light-text: #f8f9fa;
    --muted-text: #64748b;
    --border-radius: 8px;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    --transition: all 0.2s ease;
    --card-bg: #ffffff;
    --border-color: #e2e8f0;
}

body {
    background-color: var(--light-bg);
    color: var(--text-color);
    line-height: 1.6;
    font-size: 16px;
}

.app-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 24px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    text-align: center;
    margin-bottom: 32px;
    padding: 32px 0;
    background-color: var(--primary-color);
    color: var(--light-text);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.tagline {
    margin-top: 8px;
    font-size: 1.1rem;
    opacity: 0.9;
    font-weight: 300;
    letter-spacing: 0.01em;
}

h1 {
    color: inherit;
    font-family: 'Space Grotesk', 'Inter', sans-serif;
    font-weight: 700;
    font-size: 2.5rem;
    letter-spacing: -0.02em;
}

h2 {
    color: var(--primary-color);
    font-family: 'Space Grotesk', 'Inter', sans-serif;
    font-weight: 600;
    font-size: 1.25rem;
    margin-bottom: 16px;
    letter-spacing: -0.01em;
    display: flex;
    align-items: center;
    gap: 8px;
}

h3 {
    color: var(--text-color);
    font-family: 'Space Grotesk', 'Inter', sans-serif;
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: 12px;
    letter-spacing: -0.01em;
}

h2 i {
    font-size: 0.9em;
    opacity: 0.9;
}

main {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 32px;
    margin-bottom: 32px;
    flex: 1;
}

.toolbox {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 24px;
    height: fit-content;
    display: flex;
    flex-direction: column;
    gap: 30px;
    border: 1px solid var(--border-color);
}

.upload-section, .animation-settings, .export-settings {
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
}

.upload-section:last-child, .animation-settings:last-child, .export-settings:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.setting-group {
    margin-bottom: 16px;
    display: flex;
    flex-direction: column;
}

label {
    margin-bottom: 6px;
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-color);
}

input, select {
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 0.95rem;
    transition: var(--transition);
    background-color: #fdfdfd;
}

input:hover, select:hover {
    border-color: var(--secondary-color);
}

input:focus, select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(67, 97, 238, 0.15);
}

input[type="file"] {
    margin-bottom: 12px;
    padding: 8px 4px;
    font-size: 0.9rem;
    border: none;
    background: transparent;
}

input[type="color"] {
    height: 42px;
    padding: 2px;
    cursor: pointer;
}

input[type="range"] {
    padding: 0;
    height: 6px;
    background-color: #e2e8f0;
    border: none;
    border-radius: 3px;
    cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    background: var(--primary-color);
    border-radius: 50%;
    cursor: pointer;
}

input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-top: 6px;
    accent-color: var(--primary-color);
    cursor: pointer;
}

/* Resolution controls */
.resolution-controls {
    background-color: #fafbff;
    padding: 16px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    margin-bottom: 16px;
}

.dimension-controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 8px;
}

.width-control, .height-control {
    margin-bottom: 8px;
}

.maintain-aspect-ratio {
    margin-top: 4px;
}

/* Toggle for original styles */
.style-control {
    transition: var(--transition);
}

.style-control.disabled {
    opacity: 0.5;
    pointer-events: none;
}

#use-original-styles {
    margin-left: 0;
}

/* Style for the original styles toggle label */
label[for="use-original-styles"] {
    color: var(--accent-color);
    font-weight: 600;
}

button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 12px 16px;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
    margin-top: 12px;
    font-size: 0.95rem;
    letter-spacing: 0.01em;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

button i {
    font-size: 0.9em;
}

button:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
}

button:active {
    transform: translateY(0px);
}

button:disabled {
    background-color: #cbd5e1;
    cursor: not-allowed;
    transform: none;
}

.preview-area {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 500px;
    border: 1px solid var(--border-color);
}

.canvas-container {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

#svg-container {
    width: 100%;
    height: 400px;
    border: 2px dashed #cbd5e1;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 20 20"><rect width="10" height="10" fill="%23f0f0f0"/><rect x="10" y="10" width="10" height="10" fill="%23f0f0f0"/><rect x="10" y="0" width="10" height="10" fill="%23ffffff"/><rect x="0" y="10" width="10" height="10" fill="%23ffffff"/></svg>');
    background-repeat: repeat;
    border-radius: var(--border-radius);
}

.upload-prompt {
    color: var(--muted-text);
    font-size: 1.1rem;
    text-align: center;
    font-weight: 500;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.upload-prompt i {
    color: #cbd5e1;
}

#svg-container.has-svg {
    border: none;
}

#svg-container svg {
    max-width: 100%;
    max-height: 100%;
}

#animation-controls {
    display: flex;
    gap: 12px;
    width: 100%;
    max-width: 400px;
}

#animation-controls button {
    flex: 1;
    min-width: 80px;
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    justify-content: center;
    align-items: center;
    z-index: 1000;
    backdrop-filter: blur(3px);
}

.modal.active {
    display: flex;
}

.modal-content {
    background-color: var(--card-bg);
    padding: 32px;
    border-radius: var(--border-radius);
    width: 420px;
    max-width: 90%;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    border: 1px solid var(--border-color);
}

.close-btn {
    float: right;
    font-size: 1.5rem;
    font-weight: bold;
    cursor: pointer;
    color: var(--muted-text);
    transition: var(--transition);
}

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

.progress-container {
    height: 12px;
    background-color: #e2e8f0;
    border-radius: 6px;
    margin: 24px 0;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background-color: var(--primary-color);
    width: 0%;
    transition: width 0.3s ease;
}

/* Quality value display */
#quality-value {
    margin-top: 6px;
    font-size: 0.9rem;
    color: var(--muted-text);
    text-align: center;
}

#export-status {
    text-align: center;
    font-weight: 500;
    color: var(--text-color);
}

footer {
    margin-top: auto;
    padding: 16px 0;
    text-align: center;
    color: var(--muted-text);
    font-size: 0.9rem;
}

footer i {
    color: #ef476f;
    margin: 0 2px;
}

/* Responsive adjustments */
@media (max-width: 900px) {
    main {
        grid-template-columns: 1fr;
    }
    
    .toolbox {
        order: 2;
    }
    
    .preview-area {
        order: 1;
    }
}