body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB",
        "Microsoft YaHei", sans-serif;
    background-color: #f8fafc;
}

.modal-mask {
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
}

pre.config-view {
    font-family: "JetBrains Mono", Consolas, Menlo, monospace;
    font-size: 13px;
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-all;
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

.nav-link.active {
    background: #eef2ff;
    color: #4338ca;
}
.nav-link.active i {
    color: #6366f1;
}

/* 弹窗内容高于屏幕时可以滚动（如新建隧道表单在矮屏上），并保持居中。 */
.modal-mask {
    overflow-y: auto;
    align-items: safe center;
    padding-top: 2rem;
    padding-bottom: 2rem;
}

/* 键盘操作时显示焦点框，鼠标点击不显示。 */
a:focus-visible,
button:focus-visible,
select:focus-visible,
summary:focus-visible {
    outline: 2px solid #6366f1;
    outline-offset: 2px;
}
.peer:focus-visible + div {
    box-shadow: 0 0 0 2px #fff, 0 0 0 4px #6366f1;
}

/* 数字等宽，15 秒自动刷新时流量、连接数不会左右跳动。 */
td.font-mono,
.tabular-nums {
    font-variant-numeric: tabular-nums;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }
}