.upload-zone {
    border: 2px dashed var(--bs-border-color);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.upload-zone.drag-over {
    border-color: var(--bs-primary);
    background-color: rgba(var(--bs-primary-rgb), 0.1);
}

.upload-zone i {
    color: var(--bs-secondary);
}

.supported-files {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 15px;
}

.file-type-icon {
    width: 48px;
    height: 48px;
    transition: transform 0.2s;
}

.file-type-icon:hover {
    transform: scale(1.1);
}

.progress {
    height: 1.5rem;
}

#error-container {
    margin-top: 1rem;
}

#error-container i {
    margin-right: 0.5rem;
}

.layer-node {
    padding: 2px 0;
}

.layer-content {
    padding: 4px 8px;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.layer-content:hover {
    background-color: var(--bs-secondary-bg);
}

.color-swatch {
    cursor: pointer;
    transition: transform 0.2s;
}

.color-swatch:hover {
    transform: scale(1.1);
}

.color-swatch::after {
    content: attr(title);
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.75rem;
    white-space: nowrap;
    opacity: 0;
    transition: opacity 0.2s;
}

.color-swatch:hover::after {
    opacity: 1;
}

.font-info {
    color: var(--bs-secondary-color);
}

.file-type-preview {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.file-info {
    flex: 1;
}

.file-meta {
    font-size: 0.875rem;
    margin-top: 2px;
}

.font-preview-box {
    background-color: var(--bs-secondary-bg);
    min-height: 80px;
    max-height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s;
    overflow: hidden;
    padding: 10px;
    margin-bottom: 15px;
    border-radius: 6px;
    word-break: break-word;
}

.font-card {
    height: 100%;
    display: flex;
    flex-direction: column;
}

.font-card .card-body {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.alert {
    margin-bottom: 10px;
    padding: 8px 12px;
    font-size: 0.9em;
}

.sample-text {
    max-height: 100px;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 1.2em;
    line-height: 1.4;
}

.color-dot {
    width: 15px;
    height: 15px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 5px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.font-preview-box:hover {
    background-color: var(--bs-tertiary-bg);
}

.font-preview-box .sample-text {
    text-align: center;
    line-height: 1.2;
    margin: 0;
    word-break: break-word;
}

.font-details i {
    width: 16px;
    margin-right: 4px;
    opacity: 0.7;
}

.card .badge {
    font-weight: normal;
}

.layer-opacity {
  margin-left: auto;
  padding-right: 20px;
  color: #8c8c8c;
  display: inline-block;
}

.layer-opacity::after {
  content: "%";
  margin-left: 2px;
}

.layer-rotation {
  padding-right: 10px;
}
.color-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(30px, 1fr));
    gap: 0.5rem;
}

.color-box {
    aspect-ratio: 1;
    border-radius: 8px;
    position: relative;
    transition: transform 0.2s;
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.color-box::after {
    content: attr(data-color);
    position: absolute;
    bottom: -25px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.75rem;
    white-space: nowrap;
    opacity: 0;
    transition: opacity 0.2s;
}

.color-box:hover {
    transform: translateY(-5px);
}

.color-box:hover::after {
    opacity: 1;
}

.font-card {
    background: var(--bs-dark);
    border-radius: 8px;
    padding: 1rem;
}

.font-preview {
    background: var(--bs-dark);
    padding: 1rem;
    border-radius: 6px;
    margin-bottom: 0.5rem;
    min-height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.font-info {
    font-size: 0.875rem;
}

.font-info span {
    display: inline-block;
    margin-right: 1rem;
    color: var(--bs-secondary);
}

.preview-container {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 24px;
    background: var(--bs-dark);
    border-radius: 12px;
    padding: 24px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 16px -2px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 20px;
}

.preview-main {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    padding: 20px;
}

.preview-sidebar {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.preview-section {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    padding: 16px;
}

.preview-section h5 {
    margin-bottom: 16px;
    font-size: 1.1rem;
    color: var(--bs-primary);
}

.preview-container:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.preview-image-container {
    position: relative;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bs-dark);
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.preview-image {
    max-width: 100%;
    max-height: 600px;
    object-fit: contain;
    transition: opacity 0.3s ease;
}

.layer-tree {
    max-height: 300px;
    overflow-y: auto;
    border: 1px solid var(--bs-border-color);
    border-radius: 0.375rem;
}

.layer-node {
    padding: 8px 12px;
    border-bottom: 1px solid var(--bs-border-color);
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    border-left: 3px solid transparent;
}

.layer-node:last-child {
    border-bottom: none;
}

.layer-node i {
    color: var(--bs-primary);
}

.layer-meta {
    margin-left: auto;
    font-size: 0.875rem;
    color: var(--bs-secondary);
}

.slide-navigation {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(0, 0, 0, 0.8);
    padding: 8px 16px;
    border-radius: 20px;
    backdrop-filter: blur(8px);
    transition: opacity 0.3s ease;
}

.nav-btn {
    background: none;
    border: none;
    color: white;
    padding: 8px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s ease;
}

.nav-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: scale(1.1);
}

.preview-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0;
}

.preview-viewer {
    border: none;
    background: var(--bs-dark);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.preview-image-container {
    position: relative;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bs-dark);
    border-radius: 8px;
    overflow: hidden;
}

.preview-image {
    max-width: 100%;
    max-height: 600px;
    object-fit: contain;
}

.preview-navigation {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(0, 0, 0, 0.8);
    padding: 8px 16px;
    border-radius: 20px;
    backdrop-filter: blur(8px);
}

.nav-btn {
    background: none;
    border: none;
    color: white;
    padding: 4px 8px;
    cursor: pointer;
    transition: opacity 0.2s;
}

.nav-btn:hover {
    opacity: 0.8;
}

.page-indicator {
    color: white;
    font-size: 0.9rem;
}

.preview-sidebar {
    background: var(--bs-dark);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.info-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    margin-bottom: 8px;
    color: var(--bs-secondary);
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
}

.info-item i {
    font-size: 1.2rem;
    opacity: 0.8;
    color: var(--bs-primary);
}

.info-item i {
    font-size: 1.1rem;
    opacity: 0.7;
}

.layer-tree-container {
    max-height: 400px;
    overflow-y: auto;
}

.layer-tree {
    margin-top: 12px;
}

.layer-node {
    padding: 12px;
    margin: 4px 0;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.03);
    transition: all 0.2s ease;
    cursor: pointer;
    border-left: 3px solid transparent;
}

.layer-node:hover {
    background: rgba(255, 255, 255, 0.08);
    border-left-color: var(--bs-primary);
}

.layer-node i {
    font-size: 1.1rem;
    opacity: 0.7;
    width: 24px;
}

.layer-node:hover {
    background: rgba(255, 255, 255, 0.05);
    transform: translateX(4px);
}

.preview-actions .btn {
    transition: all 0.2s;
}

.preview-actions .btn:hover {
    transform: translateY(-2px);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.preview-container {
    animation: fadeIn 0.3s ease-out;
}

.layer-node:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.layer-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.layer-info {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 0.85em;
    color: var(--bs-secondary);
}

.layer-property {
    display: flex;
    align-items: center;
    gap: 4px;
}

.layer-property i {
    font-size: 14px;
    opacity: 0.7;
}
.file-info-container {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    margin-bottom: 16px;
}

.file-info-container img {
    opacity: 0.8;
}

.file-info-container span {
    font-size: 0.9rem;
}