/* =============================================================
   XML to JSON Converter — Scoped Stylesheet
   All rules scoped to .xjc-wrap — safe inside any WP theme
   Dark/Light · Glassmorphism · Mobile-first · Accessible
   ============================================================= */

/* ── CSS Variables (scoped) ─────────────────────────────────── */
.xjc-wrap {
    --xjc-primary:       #4f46e5;
    --xjc-primary-h:     #4338ca;
    --xjc-primary-lt:    rgba(79,70,229,.12);
    --xjc-primary-glow:  rgba(79,70,229,.28);
    --xjc-secondary:     #7c3aed;
    --xjc-gradient:      linear-gradient(135deg,#4f46e5 0%,#7c3aed 100%);

    /* Dark theme defaults */
    --xjc-bg:            #0f172a;
    --xjc-bg2:           #0d1424;
    --xjc-bg-card:       #1e293b;
    --xjc-bg-glass:      rgba(22,36,58,.88);
    --xjc-bg-input:      rgba(15,23,42,.6);
    --xjc-border:        rgba(255,255,255,.07);
    --xjc-border-focus:  rgba(79,70,229,.55);

    --xjc-text:          #e2e8f0;
    --xjc-text2:         #94a3b8;
    --xjc-text-muted:    #475569;

    --xjc-success:       #10b981;
    --xjc-success-bg:    rgba(16,185,129,.1);
    --xjc-success-bdr:   rgba(16,185,129,.3);
    --xjc-error:         #f87171;
    --xjc-error-bg:      rgba(248,113,113,.08);
    --xjc-error-bdr:     rgba(248,113,113,.25);

    --xjc-shadow-sm:     0 1px 4px rgba(0,0,0,.5);
    --xjc-shadow-md:     0 4px 24px rgba(0,0,0,.5);
    --xjc-shadow-lg:     0 10px 48px rgba(0,0,0,.6);
    --xjc-glow:          0 0 50px rgba(79,70,229,.14);

    --xjc-r-s:  6px;
    --xjc-r-m:  12px;
    --xjc-r-l:  16px;
    --xjc-r-xl: 24px;

    --xjc-ease:    0.18s ease;
    --xjc-ease-md: 0.28s ease;

    --xjc-font: system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
    --xjc-mono: "Cascadia Code","Fira Code","JetBrains Mono","Courier New",monospace;

    /* Syntax highlight tokens */
    --xjc-jk: #818cf8; /* key */
    --xjc-js: #34d399; /* string */
    --xjc-jn: #fb923c; /* number */
    --xjc-jb: #60a5fa; /* boolean */
    --xjc-jz: #f87171; /* null */
    --xjc-jp: #94a3b8; /* punctuation */
}

/* Light theme overrides */
.xjc-wrap[data-theme="light"] {
    --xjc-bg:         #f0f4f8;
    --xjc-bg2:        #e8edf3;
    --xjc-bg-card:    #ffffff;
    --xjc-bg-glass:   rgba(255,255,255,.94);
    --xjc-bg-input:   rgba(248,250,252,.9);
    --xjc-border:     rgba(0,0,0,.08);
    --xjc-border-focus: rgba(79,70,229,.45);

    --xjc-text:       #1e293b;
    --xjc-text2:      #475569;
    --xjc-text-muted: #94a3b8;

    --xjc-shadow-sm:  0 1px 4px rgba(0,0,0,.08);
    --xjc-shadow-md:  0 4px 24px rgba(0,0,0,.09);
    --xjc-shadow-lg:  0 10px 48px rgba(0,0,0,.11);
    --xjc-glow:       0 0 50px rgba(79,70,229,.08);

    --xjc-jk: #4338ca;
    --xjc-js: #065f46;
    --xjc-jn: #c2410c;
    --xjc-jb: #1d4ed8;
    --xjc-jz: #dc2626;
    --xjc-jp: #475569;
}

/* ── Base ────────────────────────────────────────────────────── */
.xjc-wrap,
.xjc-wrap *,
.xjc-wrap *::before,
.xjc-wrap *::after {
    box-sizing: border-box;
}

.xjc-wrap {
    font-family: var(--xjc-font);
    background: var(--xjc-bg);
    color: var(--xjc-text);
    line-height: 1.6;
    transition: background var(--xjc-ease-md), color var(--xjc-ease-md);
    width: 100%;
    overflow-x: hidden;
}

.xjc-wrap a {
    color: var(--xjc-primary);
    text-decoration: none;
    transition: color var(--xjc-ease);
}
.xjc-wrap a:hover { color: var(--xjc-primary-h); }

.xjc-wrap h1,
.xjc-wrap h2,
.xjc-wrap h3 {
    line-height: 1.3;
    font-weight: 700;
    color: var(--xjc-text);
    margin: 0;
}

.xjc-wrap code {
    font-family: var(--xjc-mono);
    background: var(--xjc-bg-card);
    border: 1px solid var(--xjc-border);
    padding: .1em .4em;
    border-radius: 4px;
    font-size: .82em;
    color: var(--xjc-primary);
}
.xjc-wrap kbd {
    font-family: var(--xjc-mono);
    font-size: .78em;
    background: var(--xjc-bg-card);
    border: 1px solid var(--xjc-border);
    border-bottom-width: 2px;
    border-radius: 4px;
    padding: .1em .45em;
    color: var(--xjc-text2);
}

.xjc-sr-only {
    position: absolute;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border: 0;
}

.xjc-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ── Hero ────────────────────────────────────────────────────── */
.xjc-hero {
    padding: 3.5rem 0 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    background: var(--xjc-bg);
}
.xjc-hero::before {
    content: '';
    position: absolute;
    top: -20%; left: 50%;
    transform: translateX(-50%);
    width: 800px; height: 600px;
    background: radial-gradient(ellipse 65% 55% at 50% 20%, rgba(79,70,229,.13), transparent 70%);
    pointer-events: none;
}
.xjc-hero-inner {
    position: relative;
    z-index: 1;
    max-width: 720px;
    margin: 0 auto;
    padding: 0 1.5rem;
}
.xjc-badge {
    display: inline-block;
    background: var(--xjc-primary-lt);
    color: var(--xjc-primary);
    border: 1px solid rgba(79,70,229,.28);
    border-radius: 999px;
    padding: .25rem .9rem;
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: .7px;
    text-transform: uppercase;
    margin-bottom: .9rem;
}
.xjc-hero h1 {
    font-size: clamp(1.85rem, 5vw, 2.9rem);
    font-weight: 800;
    margin-bottom: .9rem;
    background: linear-gradient(135deg, var(--xjc-text) 35%, var(--xjc-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.xjc-hero-desc {
    font-size: 1.02rem;
    color: var(--xjc-text2);
    margin: 0 0 1.75rem;
    line-height: 1.75;
}
.xjc-hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.2rem;
    flex-wrap: wrap;
}
.xjc-stat { display: flex; flex-direction: column; align-items: center; gap: .04rem; }
.xjc-stat-num { font-size: 1.1rem; font-weight: 700; color: var(--xjc-primary); }
.xjc-stat-lbl { font-size: .67rem; color: var(--xjc-text-muted); text-transform: uppercase; letter-spacing: .5px; }
.xjc-stat-div  { width: 1px; height: 26px; background: var(--xjc-border); }

/* ── Converter Section ───────────────────────────────────────── */
.xjc-converter-section {
    padding: .75rem 0 3.5rem;
    background: var(--xjc-bg);
}

/* ── Toolbar ─────────────────────────────────────────────────── */
.xjc-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: .7rem 1.2rem;
    background: var(--xjc-bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--xjc-border);
    border-radius: var(--xjc-r-l);
    margin-bottom: .875rem;
    flex-wrap: wrap;
}
.xjc-toolbar-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}
.xjc-toolbar-title {
    font-size: .9rem;
    font-weight: 700;
    color: var(--xjc-text);
    letter-spacing: .2px;
}
.xjc-toolbar-hint {
    display: flex;
    align-items: center;
    gap: .35rem;
    font-size: .75rem;
    color: var(--xjc-text-muted);
}
.xjc-toolbar-right {
    display: flex;
    align-items: center;
    gap: .6rem;
    flex-shrink: 0;
    flex-wrap: wrap;
}

/* Upload label styled as a button */
.xjc-upload-label {
    cursor: pointer;
}
.xjc-upload-label:hover:not(:disabled) {
    background: var(--xjc-primary-lt) !important;
    border-color: var(--xjc-primary) !important;
    color: var(--xjc-primary) !important;
}

/* Theme toggle */
.xjc-btn-theme {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    padding: .4rem 1rem;
    background: var(--xjc-primary-lt);
    border: 1px solid rgba(79,70,229,.28);
    border-radius: 999px;
    cursor: pointer;
    font-family: var(--xjc-font);
    font-size: .79rem;
    font-weight: 600;
    color: var(--xjc-primary);
    transition: all var(--xjc-ease);
    white-space: nowrap;
    line-height: 1.4;
}
.xjc-btn-theme:hover {
    background: var(--xjc-primary);
    color: #fff;
    border-color: var(--xjc-primary);
    box-shadow: 0 4px 14px var(--xjc-primary-glow);
}
.xjc-theme-icon { font-size: .92rem; line-height: 1; }

/* ── Converter Grid ──────────────────────────────────────────── */
.xjc-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 1rem;
    align-items: stretch;
    margin-bottom: .75rem;
}

/* ── Panel ───────────────────────────────────────────────────── */
.xjc-panel {
    background: var(--xjc-bg-glass);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--xjc-border);
    border-radius: var(--xjc-r-l);
    box-shadow: var(--xjc-shadow-md);
    display: flex;
    flex-direction: column;
    min-height: 540px;
    transition: border-color var(--xjc-ease), box-shadow var(--xjc-ease);
}
.xjc-panel:focus-within {
    border-color: var(--xjc-border-focus);
    box-shadow: var(--xjc-shadow-md), 0 0 0 3px rgba(79,70,229,.1);
}

.xjc-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .75rem;
    padding: .7rem 1.1rem;
    border-bottom: 1px solid var(--xjc-border);
    flex-shrink: 0;
    flex-wrap: wrap;
    background: rgba(255,255,255,.025);
    border-radius: var(--xjc-r-l) var(--xjc-r-l) 0 0;
}
.xjc-wrap[data-theme="light"] .xjc-panel-header { background: rgba(0,0,0,.022); }

.xjc-panel-title {
    display: flex;
    align-items: center;
    gap: .4rem;
    font-size: .74rem;
    font-weight: 700;
    color: var(--xjc-text2);
    text-transform: uppercase;
    letter-spacing: .7px;
    flex-shrink: 0;
    margin: 0;
}

.xjc-panel-actions,
.xjc-output-actions {
    display: flex;
    align-items: center;
    gap: .35rem;
    flex-wrap: wrap;
}
.xjc-action-group {
    display: flex;
    align-items: center;
    gap: .25rem;
}
.xjc-action-sep {
    width: 1px; height: 18px;
    background: var(--xjc-border);
    flex-shrink: 0;
    margin: 0 .125rem;
}

/* Icon buttons */
.xjc-btn-icon {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    padding: .3rem .62rem;
    background: transparent;
    border: 1px solid var(--xjc-border);
    border-radius: var(--xjc-r-s);
    color: var(--xjc-text2);
    font-size: .73rem;
    font-weight: 600;
    cursor: pointer;
    font-family: var(--xjc-font);
    transition: all var(--xjc-ease);
    white-space: nowrap;
    line-height: 1;
}
.xjc-btn-icon:hover:not(:disabled) {
    background: var(--xjc-primary-lt);
    border-color: var(--xjc-primary);
    color: var(--xjc-primary);
}
.xjc-btn-icon:disabled { opacity: .35; cursor: not-allowed; }

.xjc-btn-format:hover:not(:disabled) {
    background: rgba(16,185,129,.1);
    border-color: rgba(16,185,129,.4);
    color: var(--xjc-success);
}
.xjc-btn-minify:hover:not(:disabled) {
    background: rgba(245,158,11,.1);
    border-color: rgba(245,158,11,.4);
    color: #f59e0b;
}

/* Panel body */
.xjc-panel-body {
    flex: 1;
    position: relative;
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow: hidden;
}

/* Textareas */
.xjc-textarea {
    flex: 1;
    width: 100%;
    min-height: 430px;
    max-height: 700px;
    padding: 1rem 1.15rem;
    background: var(--xjc-bg-input);
    border: none;
    outline: none;
    color: var(--xjc-text);
    font-family: var(--xjc-mono);
    font-size: .84rem;
    line-height: 1.7;
    resize: vertical;
    tab-size: 2;
    transition: background var(--xjc-ease-md);
}
.xjc-textarea::placeholder { color: var(--xjc-text-muted); line-height: 1.8; }
.xjc-textarea:focus { background: var(--xjc-bg-card); }

/* Drag-over state */
.xjc-textarea.xjc-dragover {
    background: var(--xjc-primary-lt);
    border: 2px dashed var(--xjc-primary);
    outline: none;
}

/* Output placeholder */
.xjc-output-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: .6rem;
    color: var(--xjc-text-muted);
    pointer-events: none;
    user-select: none;
    padding: 1rem;
    text-align: center;
}
.xjc-output-placeholder svg { opacity: .2; }
.xjc-output-placeholder p  { font-size: .88rem; opacity: .7; font-weight: 500; margin: 0; }
.xjc-output-placeholder span { font-size: .75rem; opacity: .45; }

/* Highlighted JSON output */
.xjc-output-pre {
    display: none;
    flex: 1;
    margin: 0;
    padding: 1rem 1.15rem;
    background: var(--xjc-bg-input);
    color: var(--xjc-jp);
    font-family: var(--xjc-mono);
    font-size: .84rem;
    line-height: 1.7;
    white-space: pre-wrap;
    word-break: break-all;
    overflow-y: auto;
    tab-size: 2;
    outline: none;
    min-height: 430px;
    max-height: 700px;
}
.xjc-has-output .xjc-output-pre { display: block; }
.xjc-has-output .xjc-output-placeholder { display: none; }

/* Syntax token colours */
.xjc-jk { color: var(--xjc-jk); }   /* key    */
.xjc-js { color: var(--xjc-js); }   /* string */
.xjc-jn { color: var(--xjc-jn); }   /* number */
.xjc-jb { color: var(--xjc-jb); }   /* bool   */
.xjc-jz { color: var(--xjc-jz); }   /* null   */

/* Panel footer */
.xjc-panel-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .5rem;
    padding: .5rem 1.1rem;
    border-top: 1px solid var(--xjc-border);
    flex-shrink: 0;
    background: rgba(255,255,255,.02);
    border-radius: 0 0 var(--xjc-r-l) var(--xjc-r-l);
}
.xjc-wrap[data-theme="light"] .xjc-panel-footer { background: rgba(0,0,0,.02); }

.xjc-counter {
    font-size: .71rem;
    color: var(--xjc-text-muted);
    font-family: var(--xjc-mono);
}

/* Status badges */
.xjc-badge-valid,
.xjc-badge-success {
    display: none;
    align-items: center;
    gap: .3rem;
    font-size: .69rem;
    font-weight: 700;
    letter-spacing: .3px;
    padding: .2rem .55rem;
    border-radius: 999px;
}
.xjc-badge-valid {
    background: var(--xjc-success-bg);
    color: var(--xjc-success);
    border: 1px solid var(--xjc-success-bdr);
}
.xjc-badge-success {
    background: var(--xjc-primary-lt);
    color: var(--xjc-primary);
    border: 1px solid rgba(79,70,229,.3);
}

/* ── Convert Button ──────────────────────────────────────────── */
.xjc-controls {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: .65rem;
    padding: 1rem .25rem;
}

.xjc-btn-convert {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    min-width: 90px;
    padding: 1.1rem 1rem;
    background: var(--xjc-gradient);
    color: #fff;
    border: none;
    border-radius: var(--xjc-r-l);
    font-size: .82rem;
    font-weight: 700;
    cursor: pointer;
    font-family: var(--xjc-font);
    position: relative;
    box-shadow: 0 4px 20px var(--xjc-primary-glow);
    transition: transform var(--xjc-ease), box-shadow var(--xjc-ease), opacity var(--xjc-ease);
    letter-spacing: .3px;
    overflow: hidden;
}
.xjc-btn-convert:hover:not(:disabled) {
    transform: scale(1.05);
    box-shadow: 0 8px 28px rgba(79,70,229,.55);
}
.xjc-btn-convert:active:not(:disabled) { transform: scale(.97); }
.xjc-btn-convert:disabled { opacity: .6; cursor: not-allowed; transform: none; }

.xjc-btn-text,
.xjc-btn-arrow { transition: opacity var(--xjc-ease); }
.xjc-btn-arrow { line-height: 0; }
.xjc-btn-convert.xjc-loading .xjc-btn-text,
.xjc-btn-convert.xjc-loading .xjc-btn-arrow { opacity: 0; }

/* Spinner */
.xjc-spinner {
    position: absolute;
    width: 20px; height: 20px;
    border: 2px solid rgba(255,255,255,.3);
    border-top-color: #fff;
    border-radius: 50%;
    display: none;
    animation: xjc-spin .65s linear infinite;
}
.xjc-btn-convert.xjc-loading .xjc-spinner { display: block; }
@keyframes xjc-spin { to { transform: rotate(360deg); } }

/* Live button */
.xjc-btn-live {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    padding: .38rem .85rem;
    background: transparent;
    border: 1px solid var(--xjc-border);
    border-radius: 999px;
    color: var(--xjc-text-muted);
    font-size: .73rem;
    font-weight: 600;
    cursor: pointer;
    font-family: var(--xjc-font);
    transition: all var(--xjc-ease);
    white-space: nowrap;
}
.xjc-btn-live:hover {
    border-color: var(--xjc-success);
    color: var(--xjc-success);
    background: var(--xjc-success-bg);
}
.xjc-btn-live.xjc-active {
    background: var(--xjc-success-bg);
    border-color: var(--xjc-success);
    color: var(--xjc-success);
    box-shadow: 0 0 12px rgba(16,185,129,.25);
}

/* ── Error Box ───────────────────────────────────────────────── */
.xjc-error {
    display: none;
    align-items: flex-start;
    gap: .75rem;
    padding: .9rem 1rem;
    background: var(--xjc-error-bg);
    border: 1px solid var(--xjc-error-bdr);
    border-radius: var(--xjc-r-m);
    color: var(--xjc-error);
    font-size: .87rem;
    line-height: 1.55;
    margin-top: .625rem;
}
.xjc-error.xjc-show { display: flex; }
.xjc-error > svg { flex-shrink: 0; margin-top: 2px; }
.xjc-error-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: .15rem;
}
.xjc-error-body strong {
    font-size: .76rem;
    text-transform: uppercase;
    letter-spacing: .4px;
    opacity: .8;
}
.xjc-error-close {
    flex-shrink: 0;
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--xjc-error);
    opacity: .6;
    padding: .1rem;
    line-height: 0;
    transition: opacity var(--xjc-ease);
}
.xjc-error-close:hover { opacity: 1; }

/* ── Section header ──────────────────────────────────────────── */
.xjc-section-header {
    text-align: center;
    margin-bottom: 2.5rem;
}
.xjc-section-header h2 {
    font-size: clamp(1.45rem, 3vw, 1.95rem);
    margin-bottom: .45rem;
}
.xjc-section-header p {
    color: var(--xjc-text2);
    font-size: .97rem;
    margin: 0;
}

/* ── Features ────────────────────────────────────────────────── */
.xjc-features-section {
    padding: 4.5rem 0;
    background: var(--xjc-bg2);
}
.xjc-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.2rem;
}
.xjc-feature-card {
    background: var(--xjc-bg-card);
    border: 1px solid var(--xjc-border);
    border-radius: var(--xjc-r-l);
    padding: 1.55rem;
    transition: border-color var(--xjc-ease-md), transform var(--xjc-ease-md), box-shadow var(--xjc-ease-md);
}
.xjc-feature-card:hover {
    border-color: var(--xjc-primary);
    transform: translateY(-5px);
    box-shadow: var(--xjc-shadow-lg), var(--xjc-glow);
}
.xjc-feature-icon { font-size: 2rem; display: block; margin-bottom: .85rem; line-height: 1; }
.xjc-feature-card h3 { font-size: .93rem; margin-bottom: .4rem; }
.xjc-feature-card p  { font-size: .83rem; color: var(--xjc-text2); line-height: 1.7; margin: 0; }

/* ── How It Works ────────────────────────────────────────────── */
.xjc-howto-section { padding: 4.5rem 0; background: var(--xjc-bg); }
.xjc-steps-grid {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}
.xjc-step-card {
    background: var(--xjc-bg-card);
    border: 1px solid var(--xjc-border);
    border-radius: var(--xjc-r-l);
    padding: 1.9rem 1.5rem;
    text-align: center;
    flex: 1;
    min-width: 180px;
    max-width: 270px;
    transition: border-color var(--xjc-ease-md), transform var(--xjc-ease-md), box-shadow var(--xjc-ease-md);
}
.xjc-step-card:hover {
    border-color: var(--xjc-primary);
    transform: translateY(-5px);
    box-shadow: var(--xjc-shadow-lg);
}
.xjc-step-num {
    width: 48px; height: 48px;
    background: var(--xjc-gradient);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: #fff;
    font-size: 1.2rem; font-weight: 800;
    margin: 0 auto 1rem;
    box-shadow: 0 4px 16px var(--xjc-primary-glow);
}
.xjc-step-card h3 { font-size: .93rem; margin-bottom: .4rem; }
.xjc-step-card p  { font-size: .83rem; color: var(--xjc-text2); line-height: 1.7; margin: 0; }
.xjc-step-arrow   { font-size: 1.7rem; color: var(--xjc-primary); flex-shrink: 0; opacity: .7; }

/* ── FAQ ─────────────────────────────────────────────────────── */
.xjc-faq-section { padding: 4.5rem 0; background: var(--xjc-bg2); }
.xjc-faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: .6rem;
}
.xjc-faq-item {
    background: var(--xjc-bg-card);
    border: 1px solid var(--xjc-border);
    border-radius: var(--xjc-r-m);
    overflow: hidden;
    transition: border-color var(--xjc-ease);
}
.xjc-faq-item.xjc-open { border-color: var(--xjc-primary); }

.xjc-faq-q {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.05rem 1.2rem;
    background: transparent;
    border: none;
    cursor: pointer;
    text-align: left;
    color: var(--xjc-text);
    font-size: .93rem;
    font-weight: 600;
    font-family: var(--xjc-font);
    transition: color var(--xjc-ease);
}
.xjc-faq-q:hover { color: var(--xjc-primary); }

.xjc-faq-icon {
    flex-shrink: 0;
    width: 24px; height: 24px;
    background: var(--xjc-primary-lt);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.1rem;
    color: var(--xjc-primary);
    transition: transform var(--xjc-ease), background var(--xjc-ease), color var(--xjc-ease);
}
.xjc-faq-item.xjc-open .xjc-faq-icon {
    transform: rotate(45deg);
    background: var(--xjc-primary);
    color: #fff;
}
.xjc-faq-a {
    display: none;
    padding: .9rem 1.2rem 1.2rem;
    border-top: 1px solid var(--xjc-border);
    color: var(--xjc-text2);
    font-size: .89rem;
    line-height: 1.75;
}
.xjc-faq-a p { margin: 0; }
.xjc-faq-item.xjc-open .xjc-faq-a { display: block; }

/* ── Related Tools ───────────────────────────────────────────── */
.xjc-related-section { padding: 4.5rem 0; background: var(--xjc-bg); }
.xjc-tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
}
.xjc-tool-card {
    background: var(--xjc-bg-card);
    border: 1px solid var(--xjc-border);
    border-radius: var(--xjc-r-l);
    padding: 1.45rem 1.2rem;
    text-align: center;
    color: var(--xjc-text);
    display: flex;
    flex-direction: column;
    gap: .3rem;
    transition: border-color var(--xjc-ease-md), transform var(--xjc-ease-md), box-shadow var(--xjc-ease-md);
}
.xjc-tool-card:hover {
    border-color: var(--xjc-primary);
    transform: translateY(-5px);
    box-shadow: var(--xjc-shadow-lg), var(--xjc-glow);
    color: var(--xjc-text);
}
.xjc-tool-icon { font-size: 1.75rem; display: block; margin-bottom: .15rem; }
.xjc-tool-card h3 { font-size: .88rem; font-weight: 700; margin: 0; }
.xjc-tool-card p  { font-size: .77rem; color: var(--xjc-text2); line-height: 1.55; margin: 0; }

/* ── Toasts ──────────────────────────────────────────────────── */
.xjc-toast-container {
    position: fixed;
    top: 1.25rem; right: 1.25rem;
    z-index: 99999;
    display: flex;
    flex-direction: column;
    gap: .5rem;
    pointer-events: none;
}
.xjc-toast {
    display: flex;
    align-items: center;
    gap: .5rem;
    padding: .7rem 1rem;
    background: var(--xjc-bg-card);
    border: 1px solid var(--xjc-border);
    border-radius: var(--xjc-r-m);
    box-shadow: var(--xjc-shadow-lg);
    font-family: var(--xjc-font);
    font-size: .84rem;
    color: var(--xjc-text);
    pointer-events: auto;
    min-width: 200px;
    max-width: 300px;
    animation: xjc-t-in .28s ease forwards;
}
.xjc-toast-success { border-left: 3px solid var(--xjc-success); }
.xjc-toast-error   { border-left: 3px solid var(--xjc-error); }
.xjc-toast-info    { border-left: 3px solid var(--xjc-primary); }
.xjc-toast-exit    { animation: xjc-t-out .3s ease forwards; }
.xjc-toast-icon    { flex-shrink: 0; font-size: .95rem; }
.xjc-toast-success .xjc-toast-icon { color: var(--xjc-success); }
.xjc-toast-error   .xjc-toast-icon { color: var(--xjc-error); }
.xjc-toast-info    .xjc-toast-icon { color: var(--xjc-primary); }

@keyframes xjc-t-in  { from { transform: translateX(110%); opacity: 0; } to { transform: none; opacity: 1; } }
@keyframes xjc-t-out { from { transform: none; opacity: 1; } to { transform: translateX(110%); opacity: 0; } }

/* ── Responsive ──────────────────────────────────────────────── */

/* Medium (tablet / large phone) — stack panels */
@media (max-width: 820px) {
    .xjc-grid {
        grid-template-columns: 1fr;
    }
    .xjc-controls {
        flex-direction: row;
        padding: .25rem 0;
        gap: .75rem;
    }
    .xjc-btn-convert {
        flex-direction: row;
        flex: 1;
        padding: .9rem 1.25rem;
        border-radius: var(--xjc-r-m);
        min-width: 0;
        gap: .5rem;
    }
    .xjc-panel { min-height: auto; }
    .xjc-textarea,
    .xjc-output-pre { min-height: 260px; max-height: 400px; }
    .xjc-step-arrow { transform: rotate(90deg); }
    .xjc-steps-grid { flex-direction: column; align-items: stretch; }
    .xjc-step-card  { max-width: 100%; }
}

/* Small phones */
@media (max-width: 600px) {
    .xjc-container { padding: 0 1rem; }
    .xjc-hero { padding: 2rem 0 1.5rem; }
    .xjc-stat-div  { display: none; }
    .xjc-toolbar-hint { display: none; }
    .xjc-output-header {
        flex-direction: column;
        align-items: flex-start;
        gap: .6rem;
        padding: .7rem .9rem;
    }
    .xjc-output-actions { width: 100%; }
    .xjc-action-group { flex: 1; }
    .xjc-btn-icon { flex: 1; justify-content: center; }
    .xjc-features-grid { grid-template-columns: 1fr; }
    .xjc-tools-grid    { grid-template-columns: 1fr 1fr; }
    .xjc-toast-container { top: .75rem; right: .75rem; left: .75rem; }
    .xjc-toast { max-width: 100%; min-width: 0; }
}

@media (max-width: 400px) {
    .xjc-tools-grid { grid-template-columns: 1fr; }
    .xjc-btn-theme  { padding: .35rem .7rem; font-size: .74rem; }
}