/**
 * Format Converter - Tool Specific Styles
 * Base styles come from /src/styles/layouts/tool-layout.css
 */

/* ==================== FILE INFO CARD ==================== */
.file-info-card {
    margin-bottom: var(--space-4);
    padding: var(--space-4);
    background: var(--color-bg-surface);
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-lg);
}

.file-info {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.file-info__icon {
    flex-shrink: 0;
    color: var(--color-text-muted);
}

.file-info__details {
    flex: 1;
    min-width: 0;
}

.file-info__name {
    font-size: var(--text-base);
    font-weight: var(--font-medium);
    color: var(--color-text-primary);
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-info__meta {
    font-size: var(--text-sm);
    font-family: var(--font-mono);
    color: var(--color-text-muted);
    margin: var(--space-1) 0 0;
}

/* ==================== FORM ELEMENTS ==================== */
.form-group {
    margin-bottom: var(--space-4);
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-group.hidden {
    display: none;
}

.form-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);
}

.form-helper {
    display: block;
    font-size: var(--text-base);
    color: var(--color-text-muted);
    margin-top: var(--space-2);
}

/* ==================== CHOICE GROUP ==================== */
.choice-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.choice-btn {
    padding: var(--space-2) var(--space-4);
    background: var(--color-bg-surface);
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.choice-btn:hover {
    background: var(--color-interactive-muted);
    border-color: var(--color-border-emphasis);
    color: var(--color-text-primary);
}

.choice-btn.active {
    background: var(--color-text-primary);
    border-color: var(--color-text-primary);
    color: var(--color-bg-primary);
}

.choice-btn.hidden {
    display: none;
}

/* ==================== ACTION BUTTONS ==================== */
.action-buttons {
    margin-top: var(--space-6);
}

/* ==================== BUTTON VARIATIONS ==================== */
.btn--lg {
    padding: var(--space-4) var(--space-6);
    font-size: var(--text-base);
}

.btn--full {
    width: 100%;
}

/* ==================== PROGRESS SECTION ==================== */
.progress-section {
    margin-top: var(--space-4);
    padding: var(--space-4);
    background: var(--color-bg-surface);
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-lg);
    animation: fadeIn 0.2s ease;
}

.progress-section__header {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
}

.progress-section__label {
    flex: 1;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
}

.progress-section__percent {
    font-size: var(--text-sm);
    font-family: var(--font-mono);
    color: var(--color-text-secondary);
}

.progress-section__bar {
    height: 4px;
    background: var(--color-bg-overlay);
    border-radius: 2px;
    overflow: hidden;
}

.progress-section__fill {
    height: 100%;
    background: var(--color-text-primary);
    width: 0%;
    transition: width 0.15s ease;
}

.progress-section__detail {
    margin-top: var(--space-2);
    font-size: var(--text-xs);
    color: var(--color-text-muted);
}

.progress-section__detail:empty {
    display: none;
}

/* ==================== RESET CONTAINER ==================== */
.reset-container {
    margin-top: var(--space-4);
    text-align: center;
}

/* ==================== UPLOAD LOADING STATE ==================== */
.upload-zone.loading {
    pointer-events: none;
}

.upload-zone.loading .upload-zone__content {
    opacity: 0;
}

/* ==================== HIDDEN STATE ==================== */
.drop-zone__input {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    cursor: pointer;
}

/* ==================== ANIMATIONS ==================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 480px) {
    .choice-group {
        gap: var(--space-1);
    }

    .choice-btn {
        padding: var(--space-2) var(--space-3);
        font-size: var(--text-xs);
    }

    .file-info {
        flex-direction: column;
        text-align: center;
    }

    .file-info__meta {
        font-size: var(--text-xs);
    }
}