/* key-indicator.css - on-screen arrow keys + space bar that light up when a
   keypress is acted on (see key-indicator.js). Look adapted from keyboard-css
   (https://shhdharmen.github.io/keyboard-css/), "light" variant.

   Shows ONLY the key being pressed right now - no state, no history. */

#key-indicator {
    position: absolute;
    top: 50%;
    left: calc(50% + var(--kbd-grid-half, 0px) + 36px); /* right of the grid; set by key-indicator.js */
    transform: translateY(-50%);
    display: grid;
    grid-template-columns: repeat(3, 44px);
    grid-auto-rows: 44px;
    gap: 6px;
    pointer-events: none;
    user-select: none;
    z-index: 2;
}

#key-indicator .kbd-key {
    box-sizing: border-box;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    font-size: 18px;
    line-height: 1;
    color: #343a40;
    background-color: #f8f9fa;
    border: 1px solid #dae0e5;
    border-radius: 0.25rem;
    box-shadow: 0 0 #cbd3da, 0 1px #cbd3da, 0 2px #cbd3da, 0 3px #cbd3da,
                0 4px #cbd3da, 0 5px #cbd3da,
                2px 2.5px 4px #adb5bd, 0 -1px 2.5px #adb5bd;
    transform: translate3d(0, 0, 0);
    transition: all 0.25s cubic-bezier(0.2, 1, 0.2, 1);
}

#key-indicator .kbd-key.active {
    background-color: #dae0e5;
    border-color: transparent;
    box-shadow: 0 0 1px 1px #9fadba;
    transform: translate3d(0, 5px, 0);
}

/* Layout: Up on top, Left/Down/Right beneath, space bar spanning all three. */
#key-indicator .kbd-up    { grid-column: 2; grid-row: 1; }
#key-indicator .kbd-left  { grid-column: 1; grid-row: 2; }
#key-indicator .kbd-down  { grid-column: 2; grid-row: 2; }
#key-indicator .kbd-right { grid-column: 3; grid-row: 2; }
#key-indicator .kbd-space { grid-column: 1 / span 3; grid-row: 3; height: 32px; align-self: start; margin-top: 4px; }

/* Greyed-out key (space bar on puzzles where it does nothing): flat, muted,
   and never lights up. */
#key-indicator .kbd-key.kbd-disabled {
    background-color: #e9ecef;
    border-color: #dee2e6;
    color: #adb5bd;
    box-shadow: 0 0 #dee2e6, 0 1px #dee2e6, 0 2px #dee2e6, 0 3px #dee2e6,
                0 4px #dee2e6, 0 5px #dee2e6;
    opacity: 0.55;
}