* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-bg: #faf8ef;
    --color-board: #bbada0;
    --color-cell-empty: #cdc1b4;
    --color-text-dark: #776e65;
    --color-text-light: #f9f6f2;
    --color-accent: #8f7a66;
    --color-accent-hover: #9e8b77;
    --color-focus: #4a90d9;
    --radius-lg: 12px;
    --radius-md: 8px;
    --radius-pill: 999px;
    --shadow-soft: 0 8px 24px rgba(0, 0, 0, 0.15);
    --shadow-lift: 0 4px 10px rgba(0, 0, 0, 0.2);
    --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

body {
    background: var(--color-bg);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    font-family: var(--font-body);
    padding: 20px;
}

.app {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 28px;
    width: 100%;
    max-width: 640px;
}

.game-wrapper {
    display: flex;
    gap: 30px;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

:focus-visible {
    outline: 3px solid var(--color-focus);
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
    }
}