/* ─── Tool Page: Navbar ─────────────────────────────────────────────────────
   The navbar is already position:fixed in styles.css — it doesn't scroll.
   On tool pages we want it fully transparent (blends into the page gradient)
   with no frosted glass, no border, no backdrop blur — even when .scrolled
   is present on the element.
────────────────────────────────────────────────────────────────────────────── */
body:has(.tool-main) .navbar {
    position: absolute !important;
    background: transparent !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    border-bottom-color: transparent !important;
}

/* Nav logo: always visible, never underlined on tool pages */
body:has(.tool-main) .nav-logo {
    opacity: 1;
    transform: none;
    pointer-events: auto;
    text-decoration: none;
}

/* ─── Tool Page Layout ───────────────────────────────────────────────────────── */
.tool-main {
    padding-top: calc(var(--space-16) + var(--space-12));
    padding-bottom: var(--space-20);
    min-height: 100vh;
}

.tool-header {
    margin-bottom: var(--space-8);
}

.tool-label {
    font-size: var(--text-sm);
    color: var(--ink-muted);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    font-weight: 300;
    margin-bottom: var(--space-3);
}

.tool-title {
    font-size: clamp(var(--text-3xl), 5vw, var(--text-5xl));
    font-weight: 300;
    color: var(--ink);
    letter-spacing: -0.02em;
    line-height: 1.05;
    margin-bottom: var(--space-4);
}

.tool-description {
    font-size: var(--text-lg);
    color: var(--ink-mid);
    font-weight: 300;
}

/* ─── Status Bar ─────────────────────────────────────────────────────────────── */
.jf-status-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-3) var(--space-5);
    border: 1px solid var(--thistle-border);
    background: var(--bg-surface);
    margin-bottom: var(--space-3);
    font-size: var(--text-xs);
}

.jf-status-left {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.jf-status-right {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.jf-status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    flex-shrink: 0;
    transition: background 0.3s ease;
}

.jf-status-idle    { background: var(--ink-muted); }
.jf-status-ok      { background: #4caf76; }
.jf-status-error   { background: var(--accent); }

.jf-status-text {
    font-size: var(--text-xs);
    color: var(--ink-mid);
    font-weight: 300;
    letter-spacing: 0.05em;
}

.jf-meta-chip {
    font-size: var(--text-xs);
    color: var(--ink-muted);
    letter-spacing: 0.08em;
    font-weight: 400;
    padding: var(--space-1) var(--space-3);
    border: 1px solid var(--thistle-border);
    background: var(--bg-surface);
}

/* ─── Editor Row ─────────────────────────────────────────────────────────────── */
.jf-editor-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
    min-width: 0;
}

/* ─── Panel ──────────────────────────────────────────────────────────────────── */
.jf-panel {
    display: flex;
    flex-direction: column;
    border: 1px solid var(--thistle-border);
    background: var(--bg-surface);
    transition: border-color 0.3s ease;
    min-width: 0;
    overflow: hidden;
}

.jf-panel:focus-within {
    border-color: var(--thistle-border-mid);
}

.jf-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-3) var(--space-5);
    border-bottom: 1px solid var(--thistle-border);
    flex-shrink: 0;
}

.jf-panel-label {
    font-size: var(--text-xs);
    color: var(--ink-muted);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    font-weight: 500;
}

.jf-panel-actions {
    display: flex;
    gap: var(--space-2);
}

/* ─── Buttons ────────────────────────────────────────────────────────────────── */
.jf-btn {
    font-family: 'JetBrains Mono', monospace;
    font-size: var(--text-xs);
    font-weight: 400;
    color: var(--ink-mid);
    background: transparent;
    border: 1px solid var(--thistle-border);
    padding: var(--space-1) var(--space-3);
    cursor: pointer;
    letter-spacing: 0.05em;
    transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.jf-btn:hover {
    color: var(--ink);
    border-color: var(--thistle-border-mid);
    background: var(--bg-surface-hover);
}

.jf-btn:focus {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.jf-btn.active {
    color: var(--accent);
    border-color: var(--accent);
}

/* ─── Textarea ───────────────────────────────────────────────────────────────── */
.jf-textarea {
    font-family: 'JetBrains Mono', monospace;
    font-size: var(--text-sm);
    font-weight: 300;
    line-height: 1.65;
    color: var(--ink);
    background: transparent;
    border: none;
    resize: none;
    width: 100%;
    min-height: 546px;
    max-height: 546px;
    overflow-y: auto;
    padding: var(--space-5);
    outline: none;
    caret-color: var(--accent);
    box-sizing: border-box;
}

.jf-textarea::placeholder {
    color: var(--ink-muted);
    opacity: 0.6;
}

/* ─── Output ─────────────────────────────────────────────────────────────────── */
.jf-output {
    font-family: 'JetBrains Mono', monospace;
    font-size: var(--text-sm);
    font-weight: 300;
    line-height: 1.65;
    color: var(--ink-mid);
    background: transparent;
    padding: var(--space-5);
    margin: 0;
    min-height: 546px;
    max-height: 546px;

    /* Horizontal scroll instead of overflow blowout */
    white-space: pre;
    overflow-x: auto;
    overflow-y: auto;
    word-break: normal;
    word-wrap: normal;

    max-width: 100%;
    box-sizing: border-box;

    outline: none;
    caret-color: var(--accent);
}

.jf-output:focus {
    box-shadow: inset 0 0 0 1px var(--thistle-border-mid);
}

/* Syntax highlighting */
.jf-key    { color: var(--ink); font-weight: 500; }
.jf-str    { color: #5a7a5c; }
.jf-num    { color: #6b52a0; }
.jf-bool   { color: var(--accent); }
.jf-null   { color: var(--ink-muted); font-style: italic; }
.jf-punct  { color: var(--ink-muted); }

/* ─── Error Panel ────────────────────────────────────────────────────────────── */
.jf-error-panel {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    border: 1px solid var(--accent);
    background: rgba(181, 41, 74, 0.06);
    font-size: var(--text-sm);
    color: var(--accent);
    font-weight: 300;
    margin-bottom: var(--space-3);
    letter-spacing: 0.02em;
}

.jf-error-icon {
    flex-shrink: 0;
    font-size: var(--text-base);
}

/* ─── Tree Explorer ──────────────────────────────────────────────────────────── */
.jf-tree-wrap {
    border: 1px solid var(--thistle-border);
    background: var(--bg-surface);
    margin-top: var(--space-3);
}

.jf-tree {
    padding: var(--space-5);
    font-size: var(--text-sm);
    font-weight: 300;
    line-height: 1.7;
    overflow-x: auto;
}

.jf-tree ul {
    list-style: none;
    margin: 0;
    padding-left: var(--space-6);
    border-left: 1px solid var(--thistle-border);
}

.jf-tree li {
    position: relative;
    padding: 1px 0;
}

.jf-tree-node {
    display: inline-flex;
    align-items: baseline;
    gap: var(--space-2);
    cursor: default;
}

.jf-tree-node.collapsible {
    cursor: pointer;
}

.jf-tree-node.collapsible:hover .jf-tree-key {
    color: var(--accent);
}

.jf-tree-toggle {
    font-size: var(--text-xs);
    color: var(--ink-muted);
    user-select: none;
    width: 10px;
    display: inline-block;
    flex-shrink: 0;
}

.jf-tree-key {
    color: var(--ink);
    font-weight: 500;
    transition: color 0.2s ease;
}

.jf-tree-colon {
    color: var(--ink-muted);
}

.jf-tree-type {
    font-size: var(--text-xs);
    color: var(--ink-muted);
    letter-spacing: 0.08em;
    margin-left: var(--space-2);
}

.jf-tree-value { }
.jf-tree-value.jf-str  { color: #5a7a5c; }
.jf-tree-value.jf-num  { color: #6b52a0; }
.jf-tree-value.jf-bool { color: var(--accent); }
.jf-tree-value.jf-null { color: var(--ink-muted); font-style: italic; }

.jf-tree-children.collapsed {
    display: none;
}

/* ─── Utility ────────────────────────────────────────────────────────────────── */
.hidden {
    display: none !important;
}

/* ─── Responsive ─────────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
    .jf-editor-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .jf-textarea,
    .jf-output {
        min-height: 260px;
        font-size: var(--text-xs);
    }
}

/* ─── XML Syntax Highlighting ───────────────────────────────────────────────── */
/*
 * Colour roles — chosen for clear contrast separation on the thistle background:
 *
 *   xml-punct        muted lavender  — < > / = structural glue; visually recedes
 *   xml-tag          cobalt blue     — element names  <foo> </foo>
 *   xml-attr-name    warm amber      — attribute names  key=
 *   xml-attr-val     forest green    — attribute values  "value"
 *   xml-text         near-black      — element text content
 *   xml-comment      slate grey      — <!-- comments -->
 *   xml-cdata        teal            — <![CDATA[ blocks ]]>
 *   xml-decl         warm amber      — "xml" keyword inside <?xml ?>
 *   xml-pi           muted lavender  — processing instructions <?foo ?>
 *   xml-pi-target    accent red      — PI target name
 */
.xml-punct        { color: #9585b4; }                        /* muted lavender    */
.xml-tag          { color: #2e6da4; font-weight: 500; }      /* cobalt blue       */
.xml-attr-name    { color: #a0660a; }                        /* warm amber        */
.xml-attr-val     { color: #3d7a50; }                        /* forest green      */
.xml-text         { color: var(--ink); }                     /* near-black        */
.xml-comment      { color: #7a8799; font-style: italic; }    /* slate grey        */
.xml-comment-tree { color: #7a8799; font-style: italic; }    /* slate grey        */
.xml-cdata        { color: #1e7b7b; }                        /* teal              */
.xml-decl         { color: #a0660a; }                        /* warm amber        */
.xml-pi           { color: #9585b4; font-style: italic; }    /* muted lavender    */
.xml-pi-target    { color: var(--accent); }                  /* accent red        */

/* ─── Tool Page: Mobile Navbar ─────────────────────────────────────────────
   Override the absolute positioning from above so the navbar scrolls with
   the page on mobile, and goes solid when the hamburger menu is open.
──────────────────────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    body:has(.tool-main) .navbar,
    body:has(.tool-main) .navbar.scrolled {
        position: sticky !important;
        top: 0;
    }

    body:has(.tool-main) .navbar.scrolled {
        background: rgba(198, 186, 222, 0.85) !important;
        backdrop-filter: blur(12px) !important;
        -webkit-backdrop-filter: blur(12px) !important;
    }

    body:has(.tool-main) .navbar.nav-open {
        background: #C6BADE !important;
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
    }
}