/* ==========================================================================
   Data Size Converter - Tool-Specific Styles
   ========================================================================== */

.preview-container {
    min-height: 240px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.preview-empty {
    text-align: center;
    color: var(--text-tertiary);
}

.preview-empty p {
    font-size: 14px;
}

.preview-result {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.summary-card {
    padding: var(--space-md);
    background: var(--bg-primary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
}

.summary-label {
    display: block;
    margin-bottom: var(--space-xs);
    font-size: 13px;
    color: var(--text-tertiary);
}

.summary-value {
    display: block;
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.summary-meta {
    display: block;
    margin-top: var(--space-xs);
    font-size: 13px;
    color: var(--text-secondary);
}

.results-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    width: 100%;
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--bg-primary);
    border-radius: var(--radius-md);
}

.result-item.is-source {
    outline: 1px solid color-mix(in srgb, var(--color-primary) 45%, transparent);
}

.result-label-wrap {
    min-width: 0;
}

.result-label {
    font-size: 14px;
    color: var(--text-secondary);
}

.result-hint {
    display: block;
    margin-top: 2px;
    font-size: 12px;
    color: var(--text-tertiary);
}

.result-value {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    text-align: right;
    word-break: break-word;
}

.button-row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.secondary-actions .button-secondary {
    flex: 1;
}

.preset-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--space-sm);
}

.similar-tools {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-md);
}

.similar-tool-card {
    display: block;
    padding: var(--space-lg);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: inherit;
}

.similar-tool-card h3 {
    margin: 0 0 var(--space-sm);
    color: var(--text-primary);
    font-size: 16px;
}

.similar-tool-card p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.5;
}

.input-error {
    color: var(--color-error, #ef4444);
    font-size: 13px;
    margin-top: var(--space-xs);
}

.input-group.has-error .text-input,
.input-group.has-error .select-input {
    border-color: var(--color-error, #ef4444);
}

.button-primary {
    position: relative;
}

.button-primary.is-loading .button-text {
    visibility: hidden;
}

.button-primary.is-loading .button-spinner {
    display: block;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}

.button-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

.tool-content-section {
    padding-top: 0;
}

.content-stack {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.content-block h2 {
    margin-bottom: var(--space-md);
}

.content-list {
    margin: 0;
    padding-left: 1.25rem;
    color: var(--text-secondary);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

@media (max-width: 768px) {
    .result-item,
    .button-row {
        flex-direction: column;
    }

    .result-value {
        width: 100%;
        text-align: left;
    }

    .secondary-actions .button-secondary {
        width: 100%;
    }
}