/* An instrument-panel extension of the existing antique nautical chart. */
.chart { border-radius: 50%; }
.chart .ship:focus { outline: none; }
.chart .ship:focus-visible:not([data-pointer-focus]) { filter: drop-shadow(0 0 6px #e4c68e); }
.compass-ring { position: absolute; inset: 0; z-index: 3; pointer-events: none; color: #b7a77f; opacity: .65; }
.compass-ring[data-live="true"] { opacity: 1; }
.compass-graduations { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.compass-graduations line { stroke: currentColor; stroke-width: 1; vector-effect: non-scaling-stroke; }
.compass-meridian { stroke: currentColor; stroke-width: .5; opacity: .2; stroke-dasharray: 1 3; fill: none; }
.compass-cardinal { position: absolute; transform: translate(-50%, -50%); font: .8rem Georgia, serif; text-shadow: 0 1px 3px #071e2a; }
.compass-cardinal[data-cardinal="N"] { color: #ecd59e; font-weight: bold; left: 50%; top: 7%; }
.compass-cardinal[data-cardinal="E"] { left: 93%; top: 50%; }
.compass-cardinal[data-cardinal="S"] { left: 50%; top: 93%; }
.compass-cardinal[data-cardinal="W"] { left: 7%; top: 50%; }
.chart .ship {
    cursor: grab;
    -webkit-user-select: none;
    user-select: none;
    -webkit-touch-callout: none;
    touch-action: none;
}
.voyage-world {
    position: absolute;
    inset: 0;
    z-index: 2;
    transform: rotate(var(--voyage-world-rotation, 0deg));
    transform-origin: center;
    pointer-events: none;
}
.voyage-world .ship { pointer-events: auto; }
.voyage-sr {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
}
.voyage-water {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}
.voyage-clock {
    position: absolute;
    top: 7%;
    left: 50%;
    z-index: 5;
    transform: translateX(-50%);
    padding: .45rem 1rem;
    border: 1px solid rgba(201, 168, 107, .65);
    border-radius: 2px;
    background: #102c3a;
    box-shadow: inset 0 0 0 3px rgba(201, 168, 107, .08);
    color: #dbc18b;
    font: .7rem Georgia, "Times New Roman", serif;
    letter-spacing: .15em;
    text-align: center;
    white-space: nowrap;
    pointer-events: none;
    transition: opacity .6s ease;
}
.voyage-clock strong {
    display: block;
    margin-top: .2rem;
    font-size: 1.45rem;
    font-weight: normal;
    font-variant-numeric: tabular-nums;
    letter-spacing: .08em;
}
.voyage-message {
    position: absolute;
    z-index: 5;
    right: 12%;
    bottom: 8%;
    left: 12%;
    color: #dbc18b;
    font: .72rem/1.5 Georgia, "Times New Roman", serif;
    text-align: center;
    pointer-events: none;
    transition: opacity .6s ease;
}
.chart[data-voyage="playing"] {
    -webkit-user-select: none;
    user-select: none;
}
.chart[data-voyage="playing"] { touch-action: none; }
.chart[data-voyage="playing"] .ship {
    top: 26%;
    left: 8%;
    width: 48%;
    height: 48%;
    animation: none;
    transform: translate(var(--voyage-x, 0px), var(--voyage-y, 0px));
}
.chart[data-voyage="playing"] .ship { cursor: grabbing; }
.chart[data-voyage="playing"] .chart-label { bottom: 3.5%; font-size: .6rem; }
.chart[data-voyage="crashed"] .voyage-message { bottom: 6%; font-size: .65rem; }
.chart.voyage-fading .voyage-clock,
.chart.voyage-fading .voyage-message { opacity: 0; }
@media (prefers-reduced-motion: reduce) {
    .voyage-clock, .voyage-message { transition-duration: .01s; }
}
.chart [hidden] { display: none; }