:root {
    --color-background: #f6faff;
    --color-surface: #ffffff;
    --color-surface-muted: #e9f1f7;
    --color-surface-alt: #f0f7ff;
    --color-border: #d0e2f0;
    --color-primary: #66b4e5;
    --color-primary-hover: #5aa2d0;
    --color-primary-active: #4891c2;
    --color-accent: #b0d7f2;
    --color-accent-hover: #a2c7e0;
    --color-error: #d94d4d;
    --color-warning: #e0a11f;
    --color-success: #58bfa1;
    --color-text: #2f3b46;
    --color-text-muted: #5c6d7a;
    --color-text-subtle: #7d8c98;
    --color-button-text: #ffffff;

    /* Dark Theme Variables */
    --color-dark-background: #1a1f24;
    --color-dark-surface: #242a31;
    --color-dark-surface-muted: #2c343c;
    --color-dark-surface-alt: #1e242a;
    --color-dark-border: #3a424a;
    --color-dark-primary: #4891c2;
    --color-dark-primary-hover: #3d7fad;
    --color-dark-primary-active: #326a91;
    --color-dark-accent: #2c5a7c;
    --color-dark-accent-hover: #264d6b;
    --color-dark-text: #e1e8ef;
    --color-dark-text-muted: #a0aab4;
    --color-dark-text-subtle: #768390;
}

:root[data-theme="dark"] {
    --color-background: var(--color-dark-background);
    --color-surface: var(--color-dark-surface);
    --color-surface-muted: var(--color-dark-surface-muted);
    --color-surface-alt: var(--color-dark-surface-alt);
    --color-border: var(--color-dark-border);
    --color-primary: var(--color-dark-primary);
    --color-primary-hover: var(--color-dark-primary-hover);
    --color-primary-active: var(--color-dark-primary-active);
    --color-accent: var(--color-dark-accent);
    --color-accent-hover: var(--color-dark-accent-hover);
    --color-error: #f97f88;
    --color-warning: #ffc857;
    --color-success: #8ef0a9;
    --color-text: var(--color-dark-text);
    --color-text-muted: var(--color-dark-text-muted);
    --color-text-subtle: var(--color-dark-text-subtle);
}

/* 动画关键帧 */
@keyframes float {
    0% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-5px);
    }

    100% {
        transform: translateY(0);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }

    100% {
        transform: scale(1);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    color: var(--color-text);
}

body {
    font-family: 'ZCOOL KuaiLe', 'Arial', sans-serif;
    background-color: var(--color-background);
    color: var(--color-text);
    min-height: 100vh;
    transition: background-color 0.3s, color 0.3s;
    background-image:
        radial-gradient(circle at 10% 20%, rgba(102, 180, 229, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 90% 80%, rgba(176, 215, 242, 0.07) 0%, transparent 50%);
}

body.dark-mode {
    background-color: var(--color-dark-background);
    color: var(--color-dark-text);
    background-image:
        radial-gradient(circle at 10% 20%, rgba(72, 145, 194, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 90% 80%, rgba(44, 90, 124, 0.07) 0%, transparent 50%);
}

.game-title {
    font-family: 'ZCOOL KuaiLe', 'Arial', sans-serif;
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--color-primary);
    text-shadow: 4px 4px 0 var(--color-border);
    transition: color 0.3s, text-shadow 0.3s;
    animation: float 3s ease-in-out infinite;
    text-align: center;
}

.dark-mode .game-title {
    color: var(--color-dark-primary);
    text-shadow: 4px 4px 0 var(--color-dark-border);
}

.game-container {
    display: flex;
    max-width: 1200px;
    margin: 0 auto;
    flex: 1;
    gap: 2rem;
    justify-content: center;
    width: 100%;
    animation: fadeIn 0.6s ease-out;
}

.game-board {
    position: relative;
    padding: 1rem;
    background-color: var(--color-surface);
    flex: 1;
    border: 8px solid var(--color-border);
    transition: background-color 0.3s, border-color 0.3s, transform 0.3s;
    aspect-ratio: 1 / 1;
    clip-path: polygon(0 8px, 8px 8px, 8px 0,
            calc(100% - 8px) 0, calc(100% - 8px) 8px, 100% 8px,
            100% calc(100% - 8px), calc(100% - 8px) calc(100% - 8px), calc(100% - 8px) 100%,
            8px 100%, 8px calc(100% - 8px), 0 calc(100% - 8px));
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.dark-mode .game-board {
    background-color: var(--color-dark-surface);
    border-color: var(--color-dark-border);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

#gameCanvas {
    display: block;
    background-color: var(--color-surface-alt);
    border: 2px solid var(--color-border);
    transition: background-color 0.3s, border-color 0.3s;
    image-rendering: pixelated;
    aspect-ratio: 1 / 1;
    width: 100%;
}

.dark-mode #gameCanvas {
    background-color: var(--color-dark-surface-alt);
    border-color: var(--color-dark-border);
}

.game-controls {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    min-width: 300px;
}

.control-card {
    background-color: var(--color-surface);
    border: 8px solid var(--color-border);
    padding: 1rem;
    transition: all 0.3s ease;
    clip-path: polygon(0 8px, 8px 8px, 8px 0,
            calc(100% - 8px) 0, calc(100% - 8px) 8px, 100% 8px,
            100% calc(100% - 8px), calc(100% - 8px) calc(100% - 8px), calc(100% - 8px) 100%,
            8px 100%, 8px calc(100% - 8px), 0 calc(100% - 8px));
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.dark-mode .control-card {
    background-color: var(--color-dark-surface);
    border-color: var(--color-dark-border);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.control-card h2 {
    margin: 0 0 1rem 0;
    color: var(--color-primary);
    font-size: 1.25rem;
    transition: color 0.3s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.control-card h2::before {
    content: '';
    display: block;
    width: 8px;
    height: 8px;
    background-color: var(--color-accent);
    transition: background-color 0.3s;
}

.dark-mode .control-card h2 {
    color: var(--color-dark-primary);
}

.dark-mode .control-card h2::before {
    background-color: var(--color-dark-accent);
}

.game-status {
    padding: 0.75rem;
    margin-bottom: 1rem;
    background-color: var(--color-surface-alt);
    border: 4px solid var(--color-border);
    transition: all 0.3s;
    clip-path: polygon(0 4px, 4px 4px, 4px 0,
            calc(100% - 4px) 0, calc(100% - 4px) 4px, 100% 4px,
            100% calc(100% - 4px), calc(100% - 4px) calc(100% - 4px), calc(100% - 4px) 100%,
            4px 100%, 4px calc(100% - 4px), 0 calc(100% - 4px));
}

.dark-mode .game-status {
    background-color: var(--color-dark-surface-alt);
    border-color: var(--color-dark-border);
}

.status-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.status-row:last-child {
    margin-bottom: 0;
}

.status-label {
    font-weight: bold;
    color: var(--color-text-muted);
    transition: color 0.3s;
}

.dark-mode .status-label {
    color: var(--color-dark-text-muted);
}

.status-value {
    font-weight: bold;
    color: var(--color-primary);
    transition: color 0.3s;
}

.dark-mode .status-value {
    color: var(--color-dark-primary);
}

.player-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.player-stone {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 2px solid var(--color-border);
    transition: all 0.3s;
}

.player-stone.black {
    background-color: #333;
}

.player-stone.white {
    background-color: #fff;
}

.dark-mode .player-stone {
    border-color: var(--color-dark-border);
}

.button-group {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.game-log {
    flex-grow: 1;
    margin-top: 1rem;
    height: 200px;
    overflow-y: auto;
    padding: 0.75rem;
    background-color: var(--color-surface-muted);
    border: 4px solid var(--color-border);
    transition: all 0.3s;
    clip-path: polygon(0 4px, 4px 4px, 4px 0,
            calc(100% - 4px) 0, calc(100% - 4px) 4px, 100% 4px,
            100% calc(100% - 4px), calc(100% - 4px) calc(100% - 4px), calc(100% - 4px) 100%,
            4px 100%, 4px calc(100% - 4px), 0 calc(100% - 4px));
    scrollbar-width: thin;
    scrollbar-color: var(--color-border) var(--color-surface-muted);
}

.game-log::-webkit-scrollbar {
    width: 8px;
}

.game-log::-webkit-scrollbar-track {
    background: var(--color-surface-muted);
}

.game-log::-webkit-scrollbar-thumb {
    background-color: var(--color-border);
    border-radius: 0;
    border: 2px solid var(--color-surface-muted);
}

.dark-mode .game-log {
    background-color: var(--color-dark-surface-muted);
    border-color: var(--color-dark-border);
    scrollbar-color: var(--color-dark-border) var(--color-dark-surface-muted);
}

.dark-mode .game-log::-webkit-scrollbar-track {
    background: var(--color-dark-surface-muted);
}

.dark-mode .game-log::-webkit-scrollbar-thumb {
    background-color: var(--color-dark-border);
    border: 2px solid var(--color-dark-surface-muted);
}

.log-entry {
    padding: 0.5rem 0.75rem;
    margin: 0.5rem 0;
    font-size: 0.875rem;
    color: var(--color-text);
    border-left: 4px solid var(--color-primary);
    background-color: var(--color-surface);
    transition: all 0.3s;
    animation: fadeIn 0.3s ease-out;
}

.dark-mode .log-entry {
    color: var(--color-dark-text);
    background-color: var(--color-dark-surface);
    border-left-color: var(--color-dark-primary);
}

.log-entry.success {
    border-left-color: var(--color-success);
}

.dark-mode .log-entry.success {
    border-left-color: var(--color-success);
}

.log-entry.error {
    border-left-color: var(--color-error);
}

.dark-mode .log-entry.error {
    border-left-color: var(--color-error);
}

@media (max-width: 1024px) {
    .game-container {
        flex-direction: column;
        align-items: center;
    }

    .game-controls {
        width: 100%;
        max-width: 480px;
    }
}

.container {
    /* max-width: 1200px;
    margin: 0 auto;
    padding: 2rem; */
    height: 100vh;
}

.pixel-card {
    background-color: var(--color-surface);
    border: 8px solid var(--color-border);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    transition: all 0.3s;
    clip-path: polygon(0 8px, 8px 8px, 8px 0,
            calc(100% - 8px) 0, calc(100% - 8px) 8px, 100% 8px,
            100% calc(100% - 8px), calc(100% - 8px) calc(100% - 8px), calc(100% - 8px) 100%,
            8px 100%, 8px calc(100% - 8px), 0 calc(100% - 8px));
}

.pixel-button {
    font-family: inherit;
    padding: 0.5rem 1rem;
    font-weight: bold;
    border: 8px solid var(--color-primary-active);
    background-color: var(--color-primary);
    color: var(--color-button-text);
    cursor: pointer;
    transition: all 0.2s ease;
    clip-path: polygon(0 8px, 8px 8px, 8px 0,
            calc(100% - 8px) 0, calc(100% - 8px) 8px, 100% 8px,
            100% calc(100% - 8px), calc(100% - 8px) calc(100% - 8px), calc(100% - 8px) 100%,
            8px 100%, 8px calc(100% - 8px), 0 calc(100% - 8px));
    position: relative;
    overflow: hidden;
}

.pixel-button:hover:not(:disabled) {
    background-color: var(--color-primary-hover);
    transform: translateY(-2px);
}

.pixel-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pixel-input {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--color-surface-muted);
    border: 4px solid var(--color-border);
    color: var(--color-text);
    font-family: inherit;
    transition: all 0.3s;
    clip-path: polygon(0 4px, 4px 4px, 4px 0,
            calc(100% - 4px) 0, calc(100% - 4px) 4px, 100% 4px,
            100% calc(100% - 4px), calc(100% - 4px) calc(100% - 4px), calc(100% - 4px) 100%,
            4px 100%, 4px calc(100% - 4px), 0 calc(100% - 4px));
}

.pixel-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.game-board {
    width: fit-content;
    height: 100%;
    border: 8px solid var(--color-border);
    clip-path: polygon(0 8px, 8px 8px, 8px 0,
            calc(100% - 8px) 0, calc(100% - 8px) 8px, 100% 8px,
            100% calc(100% - 8px), calc(100% - 8px) calc(100% - 8px), calc(100% - 8px) 100%,
            8px 100%, 8px calc(100% - 8px), 0 calc(100% - 8px));
}

.cell {
    width: 40px;
    height: 40px;
    background-color: #DEB887;
    border: 1px solid #000;
    cursor: pointer;
    position: relative;
    transition: all 0.2s;
}

.cell:hover {
    background-color: #d4a76a;
}

.cell.black::after,
.cell.white::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 34px;
    height: 34px;
    border-radius: 50%;
    transition: all 0.2s;
}

.cell.black::after {
    background-color: black;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
}

.cell.white::after {
    background-color: white;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
}

.modal-content {
    background-color: var(--color-surface);
    border: 8px solid var(--color-border);
    padding: 2rem;
    margin: 15% auto;
    max-width: 500px;
    position: relative;
    clip-path: polygon(0 8px, 8px 8px, 8px 0,
            calc(100% - 8px) 0, calc(100% - 8px) 8px, 100% 8px,
            100% calc(100% - 8px), calc(100% - 8px) calc(100% - 8px), calc(100% - 8px) 100%,
            8px 100%, 8px calc(100% - 8px), 0 calc(100% - 8px));
}

.close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-text-muted);
    transition: color 0.2s;
}

.close:hover {
    color: var(--color-text);
}

.theme-toggle {
    position: fixed;
    top: 1rem;
    right: 1rem;
    padding: 0.75rem;
    background-color: var(--color-surface);
    border: 4px solid var(--color-border);
    cursor: pointer;
    transition: all 0.3s;
    clip-path: polygon(0 4px, 4px 4px, 4px 0,
            calc(100% - 4px) 0, calc(100% - 4px) 4px, 100% 4px,
            100% calc(100% - 4px), calc(100% - 4px) calc(100% - 4px), calc(100% - 4px) 100%,
            4px 100%, 4px calc(100% - 4px), 0 calc(100% - 4px));
    z-index: 1000;
}

.theme-toggle:hover {
    transform: scale(1.1) rotate(15deg);
    background-color: var(--color-surface-alt);
}

.room-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    margin: 0.5rem 0;
    background-color: var(--color-surface-muted);
    border: 4px solid var(--color-border);
    transition: all 0.3s;
    clip-path: polygon(0 4px, 4px 4px, 4px 0,
            calc(100% - 4px) 0, calc(100% - 4px) 4px, 100% 4px,
            100% calc(100% - 4px), calc(100% - 4px) calc(100% - 4px), calc(100% - 4px) 100%,
            4px 100%, 4px calc(100% - 4px), 0 calc(100% - 4px));
}

.room-item:hover {
    transform: translateX(4px);
    background-color: var(--color-surface);
}

.player-item {
    padding: 0.75rem;
    margin: 0.5rem 0;
    background-color: var(--color-surface-muted);
    border: 4px solid var(--color-border);
    transition: all 0.3s;
    clip-path: polygon(0 4px, 4px 4px, 4px 0,
            calc(100% - 4px) 0, calc(100% - 4px) 4px, 100% 4px,
            100% calc(100% - 4px), calc(100% - 4px) calc(100% - 4px), calc(100% - 4px) 100%,
            4px 100%, 4px calc(100% - 4px), 0 calc(100% - 4px));
}

.player-item.current {
    animation: border-blink 1s infinite;
    border-color: var(--color-primary);
}

@keyframes border-blink {
    0% {
        border-color: var(--color-border);
    }

    50% {
        border-color: var(--color-primary);
    }

    100% {
        border-color: var(--color-border);
    }
}

.player-item.active {
    background-color: var(--color-primary);
    color: var(--color-button-text);
}

.timer {
    font-size: 1.2rem;
    color: var(--color-text-muted);
    margin: 1rem 0;
    text-align: center;
}

#game-board {
    height: fit-content;
}

@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }

    .game-board {
        grid-template-columns: repeat(15, 30px);
        grid-template-rows: repeat(15, 30px);
    }

    .cell {
        width: 30px;
        height: 30px;
    }

    .cell.black::after,
    .cell.white::after {
        width: 26px;
        height: 26px;
    }
}

/* 添加Toast样式 */
.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 12px 24px;
    background-color: var(--color-surface);
    border: 4px solid var(--color-border);
    color: var(--color-text);
    font-family: 'ZCOOL KuaiLe', 'Arial', sans-serif;
    font-size: 14px;
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transform: translateX(120%);
    transition: transform 0.3s ease-out;
    z-index: 1000;
}

.toast.show {
    transform: translateX(0);
}

.toast.success {
    border-color: var(--color-success);
}

.toast.error {
    border-color: var(--color-error);
}

.dark-mode .toast {
    background-color: var(--color-dark-surface);
    border-color: var(--color-dark-border);
    color: var(--color-dark-text);
}

.dark-mode .toast.success {
    border-color: var(--color-success);
}

.dark-mode .toast.error {
    border-color: var(--color-error);
}
/* label 样式，用于包裹 radio 按钮和文本 */
label {
    display: flex; /* 使用 flexbox 垂直居中对齐 */
    align-items: center;
    margin: 0.5rem 0;
    color: var(--color-text-muted); /* 默认文本颜色 */
    transition: color 0.2s ease;
}

/* 当 label 内部的 pixel-radio 或原生 input[type="radio"] 被选中时，高亮 label 文本 */
label:has(pixel-radio[checked]),
label:has(input[type="radio"]:checked) {
    color: var(--color-text);
}

.hidden {
    display: none;
}

.config-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.config-row input[type="range"] {
    flex: 1;
}