/* Styles for the tool header */
.tool-header {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.tool-header .tool-icon {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
}

.tool-description {
    text-align: center;
    max-width: 100ch;
    margin: 0 auto var(--spacing-xl);
    color: var(--text-secondary-color);
}

.comparison-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

@media (min-width: 768px) {
    .comparison-container {
        grid-template-columns: 1fr 1fr;
    }
}

.file-drop-zone {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--spacing-xl);
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius-lg);
    background-color: var(--input-bg-color);
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease;
    min-height: 200px;

    /* === THE ACTUAL FIX - PART 1 === */
    /* Force the grid item to be smaller than its content */
    min-width: 0;
}

.file-drop-zone.dragover {
    border-color: var(--accent-color);
    background-color: var(--accent-color-bg-hover);
}

.file-drop-zone.file-loaded {
    border-style: solid;
    border-color: var(--accent-color);
}

.file-drop-zone.disabled {
    pointer-events: none;
    opacity: 0.6;
}

.file-input {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.file-info .file-placeholder-icon {
    font-size: 3rem;
    color: var(--text-secondary-color);
    margin-bottom: var(--spacing-sm);
    display: block;
}

.file-info .placeholder-text {
    color: var(--text-secondary-color);
    font-weight: 600;
}

.file-info .file-details {
    font-weight: 600;
    color: var(--text-primary-color);
    word-break: break-all;
    padding: 0 var(--spacing-sm);
}

.file-details .file-name {
    display: block;
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xs);
}

.file-details .file-size {
    font-size: 0.9rem;
    color: var(--text-secondary-color);
}

.controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

#compare-button,
#reset-button {
    font-size: 1.1rem;
    padding: var(--spacing-md) var(--spacing-xl);
    width: 240px;
    justify-content: center;
}

/* === Result Container === */
.result-container {
    text-align: center;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    display: none;
    animation: fadeInPageContent 0.3s ease-out;
    border: 1px solid transparent;
}

.result-container.show {
    display: block;
}

.result-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.result-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.result-message {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-lg);
}

.result-progress-bar {
    width: 100%;
    max-width: 400px;
    margin: var(--spacing-md) auto 0;
    height: 8px;
    background-color: var(--border-color);
    border-radius: var(--border-radius-sm);
    overflow: hidden;
}

.result-progress-bar-inner {
    height: 100%;
    width: 0;
    background-color: var(--accent-color);
    transition: width 0.1s linear;
}

/* Result states */
.result-container.success {
    background-color: rgba(var(--accent-color-rgb), 0.1);
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.result-container.error {
    background-color: rgba(229, 75, 75, 0.1);
    border-color: #e54b4b;
    color: #e54b4b;
}

.result-container.info {
    background-color: var(--surface-bg-color);
    border-color: var(--border-color);
    color: var(--text-primary-color);
}

/* === Improved File Selection UI === */
.file-drop-zone.file-loaded {
    padding: var(--spacing-md);
    background-color: var(--surface-bg-color);
}

.file-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    /* === THE ACTUAL FIX - PART 2 === */
    /* Add overflow hidden as a safeguard */
    overflow: hidden;
}

.file-details-wrapper {
    display: flex;
    align-items: center;
    width: 100%;
    gap: var(--spacing-sm);
    min-width: 0;
    /* Allow wrapper to shrink */
}

.file-details-wrapper .file-details {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    text-align: left;
    flex: 1;
    min-width: 0;
    /* Allow this flex item to shrink */
}

.file-details .file-icon {
    font-size: 2.5rem;
    color: var(--accent-color);
    flex-shrink: 0;
}

.file-details .file-name-size {
    display: flex;
    flex-direction: column;
    min-width: 0;
    /* Allow this nested flex item to shrink */
}

.file-details .file-name {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 0;
}

.remove-file-button.btn-secondary {
    position: relative;
    z-index: 2;
    font-size: 1.8rem;
    padding: 0;
    min-height: 36px;
    min-width: 36px;
    line-height: 1;
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary-color);
    transition: color 0.2s ease;
    transform: none;
    box-shadow: none;
}

.remove-file-button.btn-secondary:hover,
.remove-file-button.btn-secondary:focus {
    color: #e54b4b;
    background-color: transparent;
    border-color: var(--border-color);
    outline: none;
    transform: none;
    box-shadow: none;
}