/**
 * LaTeX Code Support (LCS) Frontend Stylesheet.
 * Enterprise Responsive & Accessible Math Styling.
 *
 * @package LCS
 */

/* -------------------------------------------------------------
   CORE CONTAINER & OVERFLOW PROTECTION
------------------------------------------------------------- */
/* Base equation style */
.lcs-equation {
    position: relative;
    transition: opacity 0.2s ease;
}

/* Display / Block Equation - Handles overflow and centered block spacing with minimal gaps */
.lcs-equation-display {
    display: block;
    margin: 0.5rem 0 !important;
    text-align: center;
    padding: 0.2rem 0 !important;
    clear: both;
    max-width: 100%;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
}

.lcs-equation-display mjx-container[jax="SVG"][display="true"],
.lcs-equation-display mjx-container[jax="CHTML"][display="true"] {
    margin: 0.25rem 0 !important;
}

/* Inline Equation - Flows seamlessly within surrounding text line, centered with text line */
.lcs-equation-inline {
    display: inline-block !important;
    position: static;
    overflow: visible !important;
    max-width: none !important;
    margin: 0 !important;
    padding: 0 0.12em;
    vertical-align: -0.14em !important;
    white-space: normal;
    line-height: normal !important;
}

.lcs-equation-inline .lcs-math-content {
    display: inline !important;
    vertical-align: baseline !important;
    line-height: normal;
}

/* Inline MathJax (SVG & CHTML) */
.lcs-equation-inline mjx-container[jax="SVG"],
.lcs-equation-inline mjx-container[jax="CHTML"],
.lcs-equation-inline .MathJax:not(.MathJax_Display) {
    display: inline-block !important;
    margin: 0 !important;
    padding: 0 !important;
    vertical-align: baseline !important;
    outline: none;
    line-height: 0 !important;
    max-width: none !important;
}

.lcs-equation-inline mjx-container[jax="SVG"] > svg {
    margin: 0 !important;
    display: inline-block !important;
    vertical-align: baseline !important;
}

/* Inline KaTeX */
.lcs-equation-inline .katex {
    display: inline !important;
    line-height: normal;
    text-indent: 0;
    white-space: nowrap;
}

.lcs-equation-inline .katex-html {
    display: inline-block !important;
    overflow: visible !important;
}

/* Ensure Display MathJax / KaTeX SVG & HTML fills respect parent width */
.lcs-equation-display svg,
.lcs-equation-display .MathJax,
.lcs-equation-display .katex-display {
    max-width: 100%;
}

.lcs-equation .katex-display {
    margin: 0 !important;
}

/* Alignments */
.lcs-align-left {
    text-align: left !important;
}
.lcs-align-left .MathJax,
.lcs-align-left .katex-display {
    text-align: left !important;
    margin-right: auto !important;
}

.lcs-align-center {
    text-align: center !important;
}
.lcs-align-center .MathJax,
.lcs-align-center .katex-display {
    text-align: center !important;
    margin-left: auto !important;
    margin-right: auto !important;
}

.lcs-align-right {
    text-align: right !important;
}
.lcs-align-right .MathJax,
.lcs-align-right .katex-display {
    text-align: right !important;
    margin-left: auto !important;
}

/* -------------------------------------------------------------
   MODERN TOUCH HORIZONTAL SCROLLBAR
------------------------------------------------------------- */
.lcs-equation::-webkit-scrollbar {
    height: 4px;
}

.lcs-equation::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.04);
    border-radius: 4px;
}

.lcs-equation::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 4px;
}

.lcs-equation::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.35);
}

/* -------------------------------------------------------------
   FRIENDLY ERROR STATE UI
------------------------------------------------------------- */
.lcs-equation-error {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background-color: #fef2f2;
    border: 1px solid #fecaca;
    color: #991b1b;
    border-radius: 6px;
    font-size: 0.8125rem;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    margin: 4px 0;
}

.lcs-error-badge {
    background-color: #ef4444;
    color: #ffffff;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 700;
}

.lcs-equation-placeholder {
    padding: 20px;
    text-align: center;
    border: 2px dashed #cbd5e1;
    color: #64748b;
    border-radius: 8px;
    font-size: 0.875rem;
    background: #f8fafc;
}