/* CSS-Only Tooltip System */

.md-tooltip-trigger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    border-radius: var(--radius-full);
    background: var(--brand-primary-bg);
    color: var(--brand-primary);
    font-size: 0.7rem;
    font-weight: 700;
    cursor: help;
    position: relative;
    vertical-align: middle;
    margin-left: var(--space-1);
    border: 1px solid var(--brand-primary);
    /* Ensure 44px touch target */
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

.md-tooltip-trigger::before {
    content: '';
    position: absolute;
    width: 44px;
    height: 44px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.md-tooltip-trigger::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--neutral-800);
    color: white;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    font-size: 0.8rem;
    font-weight: 400;
    line-height: 1.4;
    white-space: normal;
    width: max-content;
    max-width: 260px;
    z-index: 100;
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--duration-fast) var(--ease-default);
    box-shadow: var(--shadow-lg);
}

/* Position variants */
.md-tooltip-trigger[data-tooltip-pos="bottom"]::after {
    bottom: auto;
    top: calc(100% + 8px);
}

.md-tooltip-trigger[data-tooltip-pos="right"]::after {
    bottom: auto;
    left: calc(100% + 8px);
    top: 50%;
    transform: translateY(-50%);
}

/* Show on hover and focus */
.md-tooltip-trigger:hover::after,
.md-tooltip-trigger:focus::after,
.md-tooltip-trigger:focus-visible::after {
    opacity: 1;
}

/* White variant for dark backgrounds */
.md-tooltip-trigger--light {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border-color: rgba(255, 255, 255, 0.5);
}

/* Help expand/collapse sections */
.md-help-panel summary {
    color: var(--brand-primary);
    font-size: 0.9rem;
    cursor: pointer;
    padding: var(--space-2) 0;
    list-style: none;
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.md-help-panel summary::before {
    content: 'help';
    font-family: 'Material Symbols Outlined';
    font-size: 1.1rem;
}

.md-help-panel summary::marker {
    display: none;
}

.md-help-panel[open] summary {
    margin-bottom: var(--space-2);
}

.md-help-panel .md-help-content {
    background: var(--brand-primary-bg);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    line-height: 1.6;
    border-left: 3px solid var(--brand-primary);
}