/**
 * MrWin ToC - Base Styles
 * 
 * Clean, low-specificity core styles and CSS variable definitions.
 * Designed to provide a functional foundation without interfering with theme styles.
 */

/* =============================================================================
   RESET & ISOLATION
   ============================================================================= */

/* Use :where to keep specificity as low as possible */
/* Use :where to keep specificity as low as possible for a baseline reset */
:where(.mwpc-toc),
:where(.mwpc-toc *) {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    border: 0;
    font-size: 100%;
    font: inherit;
    vertical-align: baseline;
    list-style: none;
    text-decoration: none;
    color: inherit;
    background: none;
    line-height: inherit;
}

/* Specific resets for elements that themes often target with high specificity */
:where(.mwpc-toc ul),
:where(.mwpc-toc ol),
:where(.mwpc-toc li),
:where(.mwpc-toc p),
:where(.mwpc-toc div),
:where(.mwpc-toc nav),
:where(.mwpc-toc h1),
:where(.mwpc-toc h2),
:where(.mwpc-toc h3),
:where(.mwpc-toc h4),
:where(.mwpc-toc h5),
:where(.mwpc-toc h6) {
    margin: 0;
    padding: 0;
    list-style: none;
    border: 0;
    background: none;
    box-shadow: none;
}

:where(.mwpc-toc button) {
    appearance: none;
    background: transparent;
    border: none;
    cursor: pointer;
    font: inherit;
    color: inherit;
    padding: 0;
    margin: 0;
}

:where(.mwpc-toc svg) {
    display: block;
    width: 1em;
    height: 1em;
    fill: currentColor;
}

/* =============================================================================
   CSS VARIABLE DEFAULTS
   ============================================================================= */

.mwpc-toc {
    /* Colors */
    --mwpc-toc-bg: transparent;
    --mwpc-toc-border-color: #eee;
    --mwpc-toc-title-color: inherit;
    --mwpc-toc-link-color: inherit;
    --mwpc-toc-link-color-hover: inherit;
    --mwpc-toc-link-color-active: inherit;
    --mwpc-toc-marker-color: currentColor;
    
    /* Layout */
    --mwpc-toc-padding: 1.25rem;
    --mwpc-toc-border-radius: 8px;
    --mwpc-toc-item-spacing: 0.5rem;
    --mwpc-toc-indent: 1.25rem;
    
    /* Utility */
    --mwpc-toc-transition: 0.2s ease-in-out;
}

/* =============================================================================
   CORE STRUCTURE
   ============================================================================= */

.mwpc-toc {
    display: block;
    position: relative;
    width: 100%;
    background: var(--mwpc-toc-bg);
    border-radius: var(--mwpc-toc-border-radius);
    padding: var(--mwpc-toc-padding);
}

.mwpc-toc-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
    gap: 1rem;
}

.mwpc-toc-title {
    font-weight: 700;
    color: var(--mwpc-toc-title-color);
}

.mwpc-toc-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85em;
    opacity: 0.8;
    transition: opacity var(--mwpc-toc-transition);
}

.mwpc-toc-toggle:hover {
    opacity: 1;
}

.mwpc-toc-toggle-icon {
    transform: rotate(-180deg);
    transition: transform var(--mwpc-toc-transition);
}

.mwpc-toc.is-collapsed .mwpc-toc-toggle-icon {
    transform: rotate(0deg);
}

.mwpc-toc.is-collapsed .mwpc-toc-body {
    display: none;
}

/* =============================================================================
   LISTS & LINKS
   ============================================================================= */

.mwpc-toc-list {
    display: flex;
    flex-direction: column;
    gap: var(--mwpc-toc-item-spacing);
}

.mwpc-toc-list-nested {
    padding-left: var(--mwpc-toc-indent);
    margin-top: var(--mwpc-toc-item-spacing);
}

.mwpc-toc-item {
    display: block;
}

.mwpc-toc-link {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    color: var(--mwpc-toc-link-color);
    /* transition: color var(--mwpc-toc-transition), background var(--mwpc-toc-transition); */
}

.mwpc-toc-link:hover {
    color: var(--mwpc-toc-link-color-hover);
}

.mwpc-toc-link.is-active {
    color: var(--mwpc-toc-link-color-active);
    font-weight: 600;
}

/* =============================================================================
   MARKER STYLES (Functional Foundation)
   ============================================================================= */

/* Bullets */
.mwpc-toc-markers-bullets .mwpc-toc-link::before {
    content: "";
    flex-shrink: 0;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--mwpc-toc-marker-color);
    margin-top: 0.55em;
}

/* Numbers (Counter based) */
.mwpc-toc-markers-numbers .mwpc-toc-list-root {
    counter-reset: toc-l1;
}

.mwpc-toc-markers-numbers .mwpc-toc-list-root > .mwpc-toc-item {
    counter-increment: toc-l1;
}

.mwpc-toc-markers-numbers .mwpc-toc-list-root > .mwpc-toc-item > .mwpc-toc-link::before {
    content: counter(toc-l1) ".";
    flex-shrink: 0;
    color: var(--mwpc-toc-marker-color);
    min-width: 1.2em;
}

.mwpc-toc-markers-numbers .mwpc-toc-list-nested {
    counter-reset: toc-l2;
}

.mwpc-toc-markers-numbers .mwpc-toc-list-nested > .mwpc-toc-item {
    counter-increment: toc-l2;
}

.mwpc-toc-markers-numbers .mwpc-toc-list-nested > .mwpc-toc-item > .mwpc-toc-link::before {
    content: counter(toc-l1) "." counter(toc-l2);
    flex-shrink: 0;
    color: var(--mwpc-toc-marker-color);
    min-width: 1.8em;
}

/* Simple Responsive */
@media (max-width: 768px) {
    .mwpc-toc {
        --mwpc-toc-padding: 1rem;
    }
}