/* ============================================
   Tooltip System for Complex Words
   ============================================ */

/* Tooltip Word Styling */
.tooltip-word {
    position: relative;
    border-bottom: 1px dotted var(--accent-gold);
    cursor: help;
    color: var(--text-ink);
    transition: color 0.2s ease, border-color 0.2s ease;
    -webkit-tap-highlight-color: transparent;
}

.tooltip-word:hover {
    color: var(--accent-blue);
    border-bottom-color: var(--accent-blue);
}

/* Tooltip Popup Container */
.tooltip-popup {
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;

    /* Sizing */
    min-width: 200px;
    max-width: 280px;
    padding: 12px 16px;

    /* Visual Design - Matching Topographic Style */
    background-color: #ffffff;
    background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0 0h100v100H0z' fill='%23ffffff'/%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%23e0e0e0' fill-opacity='0.4' fill-rule='evenodd'/%3E%3C/svg%3E");
    border: 1px solid rgba(0, 0, 0, 0.12);
    border-radius: 8px;
    box-shadow:
        0 4px 12px rgba(0, 0, 0, 0.08),
        0 2px 4px rgba(0, 0, 0, 0.04),
        inset 0 1px 0 rgba(255, 255, 255, 0.9);

    /* Typography */
    font-family: var(--font-sans);
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--text-faded);
    text-align: center;

    /* Animation */
    opacity: 0;
    visibility: hidden;
    transform: translateX(-50%) translateY(-4px);
    transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;

    /* Prevent text selection */
    user-select: none;
    pointer-events: none;
}

/* Tooltip Arrow */
.tooltip-popup::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-top: 6px solid #ffffff;
    filter: drop-shadow(0 2px 1px rgba(0, 0, 0, 0.05));
}

/* Show Tooltip */
.tooltip-word:hover .tooltip-popup,
.tooltip-word.active .tooltip-popup {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
    pointer-events: auto;
}

/* Prevent tooltip from overflowing viewport */
.tooltip-word .tooltip-popup.align-left {
    left: 0;
    transform: translateX(0);
}

.tooltip-word .tooltip-popup.align-left::after {
    left: 20px;
    transform: translateX(0);
}

.tooltip-word .tooltip-popup.align-right {
    left: auto;
    right: 0;
    transform: translateX(0);
}

.tooltip-word .tooltip-popup.align-right::after {
    left: auto;
    right: 20px;
    transform: translateX(0);
}

.tooltip-word:hover .tooltip-popup.align-left,
.tooltip-word.active .tooltip-popup.align-left {
    transform: translateX(0) translateY(0);
}

.tooltip-word:hover .tooltip-popup.align-right,
.tooltip-word.active .tooltip-popup.align-right {
    transform: translateX(0) translateY(0);
}

/* Mobile Optimizations */
@media (max-width: 768px) {
    .tooltip-popup {
        max-width: 90vw;
        min-width: 180px;
        font-size: 0.8125rem;
        padding: 10px 14px;

        /* Position below on mobile for better visibility */
        bottom: auto;
        top: calc(100% + 8px);
    }

    .tooltip-popup::after {
        top: auto;
        bottom: 100%;
        border-top: none;
        border-bottom: 6px solid #ffffff;
    }

    .tooltip-word:hover .tooltip-popup,
    .tooltip-word.active .tooltip-popup {
        transform: translateX(-50%) translateY(0);
    }

    .tooltip-word:hover .tooltip-popup.align-left,
    .tooltip-word.active .tooltip-popup.align-left {
        transform: translateX(0) translateY(0);
    }

    .tooltip-word:hover .tooltip-popup.align-right,
    .tooltip-word.active .tooltip-popup.align-right {
        transform: translateX(0) translateY(0);
    }

    /* Make tooltips easier to tap */
    .tooltip-word {
        padding: 2px 0;
        margin: -2px 0;
    }
}

/* Accessibility: Focus state */
.tooltip-word:focus {
    outline: 2px solid var(--accent-blue);
    outline-offset: 2px;
    border-radius: 2px;
}

.tooltip-word:focus .tooltip-popup {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

/* Animation for tooltip appearance */
@keyframes tooltipFadeIn {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(-4px);
    }

    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}