/* ============================================================
   Chess front page styles
   The grid of ten square match buttons.
   Pairs with shared.css for the palette and page chrome.
   ============================================================ */

/* Match-selection grid: ten square buttons, five per row */
.match-grid {
    display: grid;
    grid-template-columns: repeat(5, 80px);
    gap: 14px;
    justify-content: center;
}

/* A single square match button */
.match-button {
    width: 80px;
    height: 80px;
    font-size: 1.6em;
    font-weight: bold;
    color: var(--text-color);
    background: var(--accent-color);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
    transition: background 0.2s, transform 0.2s;
}

.match-button:hover {
    background: #16a085;
    transform: translateY(-2px);
}

/* Matches that are not yet available are dimmed and unclickable */
.match-button:disabled {
    background: var(--secondary-color);
    cursor: not-allowed;
    opacity: 0.5;
    transform: none;
    box-shadow: none;
}

/* Won matches: disabled but proudly marked with a shiny gold border and a
   checkmark. Overrides the dim disabled look so the win stays visible. */
.match-button.completed,
.match-button.completed:disabled {
    position: relative;
    opacity: 1;
    background: var(--secondary-color);
    border: 2px solid #ffd700;                 /* shiny gold border */
    box-shadow: 0 0 12px rgba(255, 215, 0, 0.8); /* warm yellow glow */
}

/* Gold checkmark badge in the corner of a won match */
.match-button.completed::after {
    content: "✓";
    position: absolute;
    top: 4px;
    right: 6px;
    font-size: 0.6em;
    color: #ffd700;
}