/* Image Pixelator Styles */
.text-gradient-teal {
    background: var(--grad-teal);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
}
.tool-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 120px 20px 60px;
}
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    margin-bottom: 24px;
    transition: color 0.3s;
}
.back-link:hover { color: var(--text-primary); }
.back-link svg { width: 20px; height: 20px; fill: currentColor; }
.tool-header {
    text-align: center;
    margin-bottom: 40px;
}
.tool-main-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}
.tool-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}
.tool-grid-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
    align-items: start;
}
.tool-panel {
    background: var(--surface-light);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.04);
}
.panel-header {
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}
.panel-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}
.dropzone {
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    background: rgba(255, 255, 255, 0.5);
}
.dark-theme .dropzone {
    background: rgba(0, 0, 0, 0.2);
}
.dropzone:hover, .dropzone.dragover {
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.05);
}
.dropzone-icon {
    width: 48px;
    height: 48px;
    color: var(--primary-color);
    margin-bottom: 16px;
    opacity: 0.8;
}
.dropzone-title {
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}
.settings-group {
    margin-bottom: 20px;
}
.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-secondary);
}
.form-range {
    width: 100%;
    margin-top: 8px;
}
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    font-family: inherit;
}
.btn-primary {
    background: var(--primary-color);
    color: #fff;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
}
.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}
canvas {
    image-rendering: -moz-crisp-edges;
    image-rendering: -webkit-crisp-edges;
    image-rendering: pixelated;
    image-rendering: crisp-edges;
}
@media (max-width: 900px) {
    .tool-grid-layout { grid-template-columns: 1fr; }
}