/* ==========================================================================
   XML to CSV Converter - Mobile-first, sleek tool styles
   ========================================================================== */

/* --- Required: Tool hero (from tool-page-structure) --- */
.tool-hero {
    display: flex;
    flex-wrap: wrap;
    gap: 32px;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.hero-text {
    flex: 1;
    min-width: 260px;
}

.hero-text h1 {
    font-size: 40px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 0;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-muted, #64748b);
    max-width: 640px;
    margin-bottom: 1rem;
    margin-top: 0;
}

@media (max-width: 767px) {
    .hero-text h1 {
        font-size: clamp(1.75rem, 5vw, 2.5rem);
    }

    .hero-subtitle {
        font-size: clamp(1rem, 3vw, 1.125rem);
    }
}

/* --- Tool section --- */
.xml-csv-tool {
    margin-bottom: 2rem;
}

.xml-csv-card {
    background: var(--xml-csv-bg, #fff);
    border-radius: 16px;
    border: 1px solid var(--xml-csv-border, #e2e8f0);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
    overflow: hidden;
}

/* Options bar: horizontal on small, wraps on very small --- */
.xml-csv-options {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem 1.5rem;
    padding: 1rem 1.25rem;
    background: var(--xml-csv-options-bg, #f8fafc);
    border-bottom: 1px solid var(--xml-csv-border, #e2e8f0);
}

.xml-csv-options-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.xml-csv-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--xml-csv-text, #334155);
    white-space: nowrap;
}

.xml-csv-select {
    font-size: 0.875rem;
    padding: 0.5rem 2rem 0.5rem 0.75rem;
    border: 1px solid var(--xml-csv-border, #e2e8f0);
    border-radius: 8px;
    background: var(--xml-csv-bg, #fff);
    color: var(--xml-csv-text, #334155);
    min-width: 120px;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.6rem center;
}

.xml-csv-select:focus {
    outline: none;
    border-color: var(--xml-csv-focus, #0ea5e9);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15);
}

.xml-csv-check {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--xml-csv-text, #334155);
    cursor: pointer;
    user-select: none;
}

.xml-csv-check input {
    width: 1rem;
    height: 1rem;
    accent-color: var(--xml-csv-accent, #0ea5e9);
}

/* Actions --- */
.xml-csv-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    border-bottom: 1px solid var(--xml-csv-border, #e2e8f0);
}

.xml-csv-btn {
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: background 0.2s, color 0.2s, box-shadow 0.2s;
}

.xml-csv-btn:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.25);
}

.xml-csv-btn-primary {
    background: var(--xml-csv-accent, #0ea5e9);
    color: #fff;
}

.xml-csv-btn-primary:hover {
    background: var(--xml-csv-accent-hover, #0284c7);
}

.xml-csv-btn-secondary {
    background: var(--xml-csv-muted, #64748b);
    color: #fff;
}

.xml-csv-btn-secondary:hover {
    background: var(--xml-csv-muted-hover, #475569);
}

.xml-csv-btn-outline {
    background: transparent;
    color: var(--xml-csv-text, #334155);
    border: 1px solid var(--xml-csv-border, #e2e8f0);
}

.xml-csv-btn-outline:hover {
    background: var(--xml-csv-options-bg, #f8fafc);
}

/* Panes: stack on mobile, side-by-side on desktop --- */
.xml-csv-panes {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
    min-height: 320px;
}

@media (min-width: 992px) {
    .xml-csv-panes {
        grid-template-columns: 1fr 1fr;
        min-height: 400px;
    }
}

.xml-csv-pane {
    display: flex;
    flex-direction: column;
    min-height: 280px;
}

.xml-csv-pane + .xml-csv-pane {
    border-top: 1px solid var(--xml-csv-border, #e2e8f0);
}

@media (min-width: 992px) {
    .xml-csv-pane + .xml-csv-pane {
        border-top: none;
        border-left: 1px solid var(--xml-csv-border, #e2e8f0);
    }
}

.xml-csv-pane-title {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--xml-csv-text-muted, #64748b);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin: 0;
    padding: 0.75rem 1.25rem 0.5rem;
    flex-shrink: 0;
}

.xml-csv-editor-wrap {
    flex: 1;
    min-height: 340px;
    padding: 0 1rem 1rem;
}

.xml-csv-editor {
    width: 100%;
    min-height: 320px;
    border: 1px solid var(--xml-csv-border, #e2e8f0);
    border-radius: 10px;
    overflow: hidden;
}

@media (min-width: 992px) {
    .xml-csv-editor-wrap {
        min-height: 420px;
        padding: 0 1.25rem 1.25rem;
    }

    .xml-csv-editor {
        min-height: 400px;
    }
}

/* Ace editor overrides for this tool --- */
.xml-csv-editor-wrap .ace_editor {
    border-radius: 10px;
    font-size: 13px;
}

.xml-csv-editor-wrap .ace_scroller {
    border-radius: 10px;
}

/* Output pane: preview below editor --- */
.xml-csv-pane-output {
    min-height: auto;
}

.xml-csv-preview-wrap {
    padding: 0 1rem 1rem;
}

@media (min-width: 992px) {
    .xml-csv-preview-wrap {
        padding: 0 1.25rem 1.25rem;
    }
}

.xml-csv-preview-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--xml-csv-text-muted, #64748b);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin: 0 0 0.5rem;
}

.xml-csv-preview {
    max-height: 200px;
    overflow: auto;
    background: var(--xml-csv-options-bg, #f8fafc);
    border: 1px solid var(--xml-csv-border, #e2e8f0);
    border-radius: 8px;
    padding: 0.75rem;
}

.xml-csv-preview-empty {
    font-size: 0.875rem;
    color: var(--xml-csv-text-muted, #94a3b8);
}

/* Preview table --- */
.xml-csv-preview .xml-csv-preview-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8125rem;
}

.xml-csv-preview .xml-csv-preview-table th,
.xml-csv-preview .xml-csv-preview-table td {
    padding: 0.35rem 0.5rem;
    text-align: left;
    border: 1px solid var(--xml-csv-border, #e2e8f0);
}

.xml-csv-preview .xml-csv-preview-table th {
    background: var(--xml-csv-bg, #fff);
    font-weight: 600;
    color: var(--xml-csv-text, #334155);
}

.xml-csv-preview .xml-csv-preview-table td {
    color: var(--xml-csv-text, #334155);
}

.xml-csv-preview .xml-csv-preview-more {
    font-size: 0.75rem;
    color: var(--xml-csv-text-muted, #94a3b8);
    margin-top: 0.5rem;
}