/* ===== More Info plugin =====
   Two surfaces:
   1. The trigger — a span[data-cb-type="more-info"], scoped and variable-driven.
   2. The popover — created by mount() and appended to <body>, so its classes
      (.more-info-popover / .popover-content) are necessarily GLOBAL, not scoped
      under the block. They're namespaced to keep leak risk low.
   Colors run through CSS variables so dark mode is a variable override. */

/* ── Trigger base ────────────────────────────────────────────────────────── */
[data-cb-type="more-info"] {
    position: relative;
    cursor: help;
    transition: all 0.2s ease;
    white-space: nowrap;
    -webkit-user-select: none;
    user-select: none;
    --mi-info: #2563eb;
    --mi-info-hover: #1d4ed8;
    --mi-citation: #059669;
    --mi-citation-hover: #047857;
    --mi-highlight-bg: #fef08a;
    --mi-highlight-bg-hover: #fde047;
    --mi-highlight-text: #854d0e;
    --mi-highlight-text-hover: #713f12;
    --mi-focus: #3b82f6;
}

[data-cb-type="more-info"]:focus {
    outline: 2px solid var(--mi-focus);
    outline-offset: 2px;
    border-radius: 2px;
}

/* ── Style variants ──────────────────────────────────────────────────────── */

/* Info (blue) */
[data-cb-type="more-info"].style-info {
    color: var(--mi-info);
    border-bottom: 1px dotted var(--mi-info);
    font-weight: 500;
}
[data-cb-type="more-info"].style-info::after {
    content: "ⓘ";
    display: inline-block;
    font-size: 0.85em;
    margin-left: 2px;
    opacity: 0.7;
    font-style: normal;
}
[data-cb-type="more-info"].style-info:hover {
    color: var(--mi-info-hover);
    border-bottom-color: var(--mi-info-hover);
}

/* Citation (superscript) */
[data-cb-type="more-info"].style-citation {
    color: var(--mi-citation);
    font-weight: 500;
    position: relative;
    font-size: 0.8em;
    vertical-align: super;
    text-decoration: none;
}
[data-cb-type="more-info"].style-citation::before {
    content: "[";
    font-weight: 600;
}
[data-cb-type="more-info"].style-citation::after {
    content: "]";
    font-weight: 600;
}
[data-cb-type="more-info"].style-citation:hover {
    color: var(--mi-citation-hover);
    text-decoration: underline;
}

/* Highlight (yellow) */
[data-cb-type="more-info"].style-highlight {
    background: linear-gradient(180deg, transparent 60%, var(--mi-highlight-bg) 60%);
    color: var(--mi-highlight-text);
    padding: 2px 4px;
    border-radius: 2px;
    font-weight: 500;
    position: relative;
}
[data-cb-type="more-info"].style-highlight::before {
    content: "✨";
    font-size: 0.75em;
    margin-right: 2px;
    opacity: 0.8;
}
[data-cb-type="more-info"].style-highlight:hover {
    background: linear-gradient(180deg, transparent 60%, var(--mi-highlight-bg-hover) 60%);
    color: var(--mi-highlight-text-hover);
}

/* ── Popover (body-appended; global by necessity) ────────────────────────── */
.more-info-popover {
    position: absolute;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-4px);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
    pointer-events: none;
    --mi-pop-bg: #ffffff;
    --mi-pop-border: #e5e7eb;
    --mi-pop-text: #374151;
    --mi-pop-strong: #111827;
    --mi-pop-link: #2563eb;
    --mi-pop-link-hover: #1d4ed8;
    --mi-pop-code-bg: #f3f4f6;
    --mi-pop-code-text: #dc2626;
    --mi-pop-scroll-track: #f3f4f6;
    --mi-pop-scroll-thumb: #d1d5db;
    --mi-pop-scroll-thumb-hover: #9ca3af;
}
.more-info-popover.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
}
.more-info-popover.position-bottom {
    transform: translateY(4px);
}
.more-info-popover.position-bottom.visible {
    transform: translateY(0);
}

.popover-content {
    background: var(--mi-pop-bg);
    border: 1px solid var(--mi-pop-border);
    border-radius: 8px;
    padding: 14px 16px;
    box-shadow:
        0 4px 6px -1px rgba(0, 0, 0, 0.1),
        0 2px 4px -1px rgba(0, 0, 0, 0.06),
        0 0 0 1px rgba(0, 0, 0, 0.05);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: var(--mi-pop-text);
    max-height: 400px;
    overflow-y: auto;
    overflow-x: hidden;
}

.popover-arrow {
    position: absolute;
    width: 12px;
    height: 12px;
    background: var(--mi-pop-bg);
    border: 1px solid var(--mi-pop-border);
    transform: rotate(45deg);
    z-index: -1;
}
.more-info-popover.position-top .popover-arrow {
    bottom: -7px;
    border-top: none;
    border-left: none;
}
.more-info-popover.position-bottom .popover-arrow {
    top: -7px;
    border-bottom: none;
    border-right: none;
}

/* Popover content formatting */
.popover-content p { margin: 0 0 10px 0; }
.popover-content p:last-child { margin-bottom: 0; }
.popover-content strong,
.popover-content b {
    font-weight: 600;
    color: var(--mi-pop-strong);
}
.popover-content em,
.popover-content i { font-style: italic; }
.popover-content a {
    color: var(--mi-pop-link);
    text-decoration: underline;
    transition: color 0.2s;
}
.popover-content a:hover { color: var(--mi-pop-link-hover); }
.popover-content ul,
.popover-content ol {
    margin: 8px 0;
    padding-left: 24px;
}
.popover-content li { margin: 4px 0; }
.popover-content code {
    background: var(--mi-pop-code-bg);
    padding: 2px 6px;
    border-radius: 3px;
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 0.9em;
    color: var(--mi-pop-code-text);
}
.popover-content hr {
    border: none;
    border-top: 1px solid var(--mi-pop-border);
    margin: 12px 0;
}

/* Custom scrollbar */
.popover-content::-webkit-scrollbar { width: 6px; }
.popover-content::-webkit-scrollbar-track {
    background: var(--mi-pop-scroll-track);
    border-radius: 3px;
}
.popover-content::-webkit-scrollbar-thumb {
    background: var(--mi-pop-scroll-thumb);
    border-radius: 3px;
}
.popover-content::-webkit-scrollbar-thumb:hover {
    background: var(--mi-pop-scroll-thumb-hover);
}

/* ── Dark mode (opt-in — commented out) ───────────────────────────────────
   Dark mode for a rendered block is the SITE's responsibility, not the plugin's.
   Both surfaces are variable-driven, so redefine the palette below under whatever
   trigger your site uses. NOTE the popover block targets `.dark .more-info-popover`
   (not scoped under the block) because the popover lives at <body> level.
   NOTE: `.dark` is also the ContentBuilder editor's own UI theme, so on a page
   that runs the editor, prefer a different class here.

.dark [data-cb-type="more-info"] {
    --mi-info: #60a5fa;
    --mi-info-hover: #93c5fd;
    --mi-citation: #34d399;
    --mi-citation-hover: #6ee7b7;
    --mi-highlight-bg: #854d0e;
    --mi-highlight-bg-hover: #a16207;
    --mi-highlight-text: #fef08a;
    --mi-highlight-text-hover: #fde047;
}
.dark .more-info-popover {
    --mi-pop-bg: #1f2937;
    --mi-pop-border: #374151;
    --mi-pop-text: #d1d5db;
    --mi-pop-strong: #f9fafb;
    --mi-pop-link: #60a5fa;
    --mi-pop-link-hover: #93c5fd;
    --mi-pop-code-bg: #374151;
    --mi-pop-code-text: #fca5a5;
    --mi-pop-scroll-track: #374151;
    --mi-pop-scroll-thumb: #4b5563;
    --mi-pop-scroll-thumb-hover: #6b7280;
}
*/

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .more-info-popover { max-width: calc(100vw - 40px) !important; }
    .popover-content {
        font-size: 13px;
        padding: 12px 14px;
        max-height: 300px;
    }
    [data-cb-type="more-info"] {
        padding: 4px;
        margin: -4px;
    }
}
@media (max-width: 480px) {
    .more-info-popover { max-width: calc(100vw - 24px) !important; }
    .popover-content {
        font-size: 12px;
        padding: 10px 12px;
    }
}

/* ── Accessibility ───────────────────────────────────────────────────────── */
@media (prefers-contrast: high) {
    [data-cb-type="more-info"] {
        text-decoration: underline;
        text-decoration-style: dotted;
    }
    .popover-content { border-width: 2px; }
}
@media (prefers-reduced-motion: reduce) {
    [data-cb-type="more-info"],
    .more-info-popover,
    .popover-content a { transition: none; }
}
[data-cb-type="more-info"]:focus-visible {
    outline: 2px solid var(--mi-focus);
    outline-offset: 2px;
    border-radius: 2px;
}

/* Print — show the content inline */
@media print {
    [data-cb-type="more-info"]::after {
        content: " (" attr(data-cb-content) ")";
        font-size: 0.9em;
        color: #666;
    }
    .more-info-popover { display: none; }
}