/* ============================================================
   游戏大厅 — 五子棋对局页样式
   全部使用主题 CSS 变量（--mn-*），跟随站点主题 / 夜间模式自动变色
   @file plugins/game_hall/assets/gobang.css
   ============================================================ */

.gb-wrap { padding-bottom: 40px; }

/* ---------- 顶部 ---------- */
.gb-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 12px;
}
.gb-back {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 14px;
    color: var(--mn-text-secondary);
    text-decoration: none;
}
.gb-back:hover { color: var(--mn-primary); }
.gb-balance {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: 999px;
    background: var(--mn-bg-card);
    border: 1px solid var(--mn-border);
    font-size: 13px;
    color: var(--mn-primary);
}
.gb-flash {
    padding: 10px 16px;
    margin-bottom: 12px;
    border-radius: 10px;
    font-size: 13px;
    background: var(--mn-primary-light, var(--mn-bg-body));
    color: var(--mn-primary);
    border: 1px solid var(--mn-border);
}

/* ---------- 布局 ---------- */
.gb-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 16px;
    align-items: start;
}
.gb-main { min-width: 0; }

.gb-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 0 2px;
    margin-bottom: 10px;
    min-height: 22px;
}
.gb-turn { font-size: 14px; font-weight: 600; color: var(--mn-text); }
.gb-turn-wait { color: var(--mn-text-muted); font-weight: 500; }
.gb-turn-end { color: var(--mn-primary); }
.gb-meta { font-size: 13px; color: var(--mn-text-muted); }

/* ---------- 棋盘 ---------- */
.gb-board-wrap {
    position: relative;
    width: 100%;
    margin: 0 auto;
}
.gb-board {
    position: relative;
    width: 100%;
    aspect-ratio: 1 / 1;
    box-sizing: border-box;
    /* 半格边距：让边缘交叉点距边框半个格距 */
    padding: calc(100% / var(--gb-size, 15) / 2);
    background: var(--mn-bg-card);
    border: 1px solid var(--mn-border);
    border-radius: 14px;
    box-shadow: var(--mn-shadow-sm);
}
.gb-grid {
    position: relative;
    width: 100%;
    height: 100%;
    box-sizing: border-box;
    cursor: pointer;
    touch-action: manipulation;
    /* 网格线：每条 1px，最后一条由右/下边框补 */
    background-image:
        linear-gradient(to right, var(--mn-border) 1px, transparent 1px),
        linear-gradient(to bottom, var(--mn-border) 1px, transparent 1px);
    background-size: calc(100% / (var(--gb-size, 15) - 1)) calc(100% / (var(--gb-size, 15) - 1));
    border-right: 1px solid var(--mn-border);
    border-bottom: 1px solid var(--mn-border);
}
.gb-star {
    position: absolute;
    width: calc(100% / (var(--gb-size, 15) - 1) * 0.18);
    height: calc(100% / (var(--gb-size, 15) - 1) * 0.18);
    border-radius: 50%;
    background: var(--mn-text-muted);
    opacity: .5;
    transform: translate(-50%, -50%);
}
.gb-stone {
    position: absolute;
    width: calc(100% / (var(--gb-size, 15) - 1) * 0.86);
    height: calc(100% / (var(--gb-size, 15) - 1) * 0.86);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
}
.gb-stone.black {
    background: radial-gradient(circle at 32% 30%, #6b7280 0%, #1f2937 55%, #111827 100%);
    box-shadow: 0 2px 5px rgba(0, 0, 0, .35);
}
.gb-stone.white {
    background: radial-gradient(circle at 32% 30%, #ffffff 0%, #f8fafc 48%, #d1d5db 100%);
    border: 1px solid rgba(0, 0, 0, .1);
    box-shadow: 0 2px 5px rgba(0, 0, 0, .18);
}
/* 最后一手标记 */
.gb-stone.last::after {
    content: '';
    position: absolute;
    inset: 33%;
    border-radius: 50%;
    background: var(--mn-error, #ef4444);
}
/* 获胜连线高亮 */
.gb-stone.win {
    box-shadow: 0 0 0 2px var(--mn-warning, #f59e0b), 0 2px 6px rgba(0, 0, 0, .3);
}

/* ---------- 遮罩层（难度选择 / 结果） ---------- */
.gb-mask {
    position: absolute;
    inset: 0;
    z-index: 5;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 14px;
    border-radius: 14px;
    background: rgba(17, 24, 39, .45);
    backdrop-filter: blur(2px);
}
.gb-hidden { display: none !important; }
.gb-mask-card {
    width: 100%;
    max-width: 430px;
    max-height: 100%;
    overflow: auto;
    padding: 18px 16px;
    border-radius: 14px;
    background: var(--mn-bg-card);
    box-shadow: var(--mn-shadow-dropdown, var(--mn-shadow));
    text-align: center;
}
.gb-mask-title { font-size: 16px; font-weight: 700; color: var(--mn-text); margin: 0 0 6px; }
.gb-mask-desc { font-size: 12.5px; color: var(--mn-text-muted); line-height: 1.6; margin: 0 0 12px; }
.gb-mask-tip { font-size: 11.5px; color: var(--mn-text-muted); margin: 12px 0 0; }
.gb-result-icon { font-size: 34px; line-height: 1; margin-bottom: 8px; }
.gb-result-actions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; margin-top: 14px; }

/* ---------- 难度选择 ---------- */
.gb-levels {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}
.gb-level { margin: 0; }
.gb-level-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    width: 100%;
    padding: 12px 8px;
    border: 1px solid var(--mn-border);
    border-radius: 12px;
    background: var(--mn-bg-card);
    cursor: pointer;
    text-align: center;
    transition: transform .15s, border-color .15s, box-shadow .15s;
}
.gb-level-btn:hover {
    border-color: var(--mn-primary);
    transform: translateY(-2px);
    box-shadow: var(--mn-shadow-primary-glow, var(--mn-shadow));
}
.gb-level-name { font-size: 15px; font-weight: 700; color: var(--mn-text); }
.gb-level-desc { font-size: 11px; color: var(--mn-text-muted); line-height: 1.4; }
.gb-level-reward { font-size: 11px; font-weight: 600; color: var(--mn-primary); }

/* ---------- 按钮 ---------- */
.gb-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    padding: 8px 18px;
    border: 1px solid var(--mn-border);
    border-radius: 999px;
    background: var(--mn-bg-card);
    color: var(--mn-text-secondary);
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: .15s;
}
.gb-btn:hover { border-color: var(--mn-primary); color: var(--mn-primary); }
.gb-btn-primary {
    background: var(--mn-primary);
    border-color: var(--mn-primary);
    color: var(--mn-text-white, #fff);
}
.gb-btn-primary:hover {
    background: var(--mn-primary-hover);
    border-color: var(--mn-primary-hover);
    color: var(--mn-text-white, #fff);
}
.gb-btn-ghost { background: transparent; }
.gb-giveup-form { margin-top: 12px; text-align: center; }

/* ---------- 侧栏 ---------- */
.gb-side { display: flex; flex-direction: column; gap: 12px; }
.gb-panel {
    padding: 14px 16px;
    border: 1px solid var(--mn-border);
    border-radius: 14px;
    background: var(--mn-bg-card);
    box-shadow: var(--mn-shadow-sm);
}
.gb-panel-title {
    display: flex;
    align-items: center;
    gap: 6px;
    margin: 0 0 10px;
    font-size: 14px;
    font-weight: 600;
    color: var(--mn-text);
}
.gb-rewards { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.gb-rewards li { display: flex; align-items: center; justify-content: space-between; font-size: 13px; color: var(--mn-text-secondary); }
.gb-rw-val { color: var(--mn-primary); font-weight: 600; }
.gb-panel-tip { font-size: 12px; color: var(--mn-text-muted); margin: 8px 0 0; line-height: 1.6; }
.gb-rules { margin: 0; padding-left: 18px; font-size: 12.5px; color: var(--mn-text-secondary); line-height: 1.75; }
.gb-history { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.gb-history li { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--mn-text-secondary); }
.gb-h-res { padding: 1px 8px; border-radius: 999px; font-size: 11px; font-weight: 600; }
.gb-h-win { background: var(--mn-alert-success-bg, #f0fdf4); color: var(--mn-alert-success-text, #16a34a); }
.gb-h-lose { background: var(--mn-alert-error-bg, #fef2f2); color: var(--mn-alert-error-text, #dc2626); }
.gb-h-draw, .gb-h-giveup { background: var(--mn-bg-body); color: var(--mn-text-muted); }
.gb-h-pts { margin-left: auto; font-weight: 600; color: var(--mn-text-muted); }
.gb-h-pts-up { color: var(--mn-success, #22c55e); }

/* ---------- 窄屏 ---------- */
@media (max-width: 900px) {
    .gb-layout { grid-template-columns: 1fr; }
    .gb-board-wrap { max-width: 100%; }
}
@media (max-width: 480px) {
    .gb-levels { grid-template-columns: 1fr; }
    .gb-level-btn { flex-direction: row; justify-content: space-between; padding: 10px 12px; }
    .gb-level-desc { text-align: left; }
    .gb-level-reward { white-space: nowrap; }
    .gb-mask { padding: 8px; }
    .gb-mask-card { padding: 14px 12px; }
}