/* Reset and base styles */
:root {
    --primary-color: #2563eb;
    --text-color: #1f2937;
    --text-light: #6b7280;
    --bg-color: #ffffff;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

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

/* Tool Specific Styles */
.converter-container {
    max-width: 800px;
    margin: 2rem auto;
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.upload-area {
    border: 2px dashed #e2e8f0;
    border-radius: 12px;
    padding: 3rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background-color: #f8fafc;
}

.upload-area:hover,
.upload-area.dragover {
    border-color: var(--primary-color);
    background-color: #eff6ff;
}

.upload-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.upload-area h3 {
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.preview-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1rem;
    margin-top: 2rem;
}

.preview-item {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    aspect-ratio: 1;
}

.preview-item.removed {
    opacity: 0.5;
}

.preview-item.removed::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(239, 68, 68, 0.2);
    z-index: 1;
}

.preview-item.removed .remove-btn {
    background: #ef4444;
    color: white;
}

.preview-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.remove-btn {
    position: absolute;
    top: 5px;
    right: 5px;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    cursor: pointer;
    color: #ef4444;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: all 0.2s ease;
    z-index: 10;
}

.remove-btn:hover {
    background: #ef4444;
    color: white;
}

.controls {
    margin-top: 2rem;
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Loading overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.loader {
    width: 48px;
    height: 48px;
    border: 5px solid var(--primary-color);
    border-bottom-color: transparent;
    border-radius: 50%;
    display: inline-block;
    box-sizing: border-box;
    animation: rotation 1s linear infinite;
}

@keyframes rotation {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}