:root {
    --page-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --page-bg: #1b1b1b;
    --page-bg-alt: #2a2a2a;
    --page-text: #eee;
    --page-link: #7ac7ff;
    --page-border: #444;
}

html {
    font-family: var(--page-font);
    color: var(--page-text);
    background: var(--page-bg);
}

body {
    margin: 0;
    padding: 18px;
    line-height: 1.5;
    background: var(--page-bg);
    color: var(--page-text);
}

a {
    color: var(--page-link);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.top-nav {
    margin-bottom: 16px;
}

.card-tooltip {
    position: fixed;
    z-index: 1000;
    display: none;
    max-width: min(320px, calc(100vw - 24px));
    padding: 10px 12px;
    border: 1px solid rgba(122, 199, 255, 0.45);
    border-radius: 6px;
    background: rgba(10, 14, 18, 0.96);
    color: var(--page-text);
    box-shadow: 0 8px 18px rgba(0, 0, 0, 0.45);
    pointer-events: none;
}

.card-tooltip.is-visible {
    display: block;
}

.card-tooltip-title {
    margin-bottom: 4px;
    color: var(--page-link);
    font-size: 0.95rem;
    font-weight: 600;
}

.card-tooltip-description {
    color: #d7dde3;
    font-size: 0.88rem;
    line-height: 1.35;
}