html {
    font-size: 14px;
    position: relative;
    min-height: 100%;
}

@media (min-width: 768px) {
    html {
        font-size: 16px;
    }
}

body {
    margin-bottom: 0;
}

a {
    text-decoration: none;
}

a:hover {
    text-decoration: none;
}

/* ============================================================
   移动端适配（≤767.98px）
   ============================================================ */
@media (max-width: 767.98px) {
    .app-main {
        padding: 0.85rem 0.75rem 2rem;
    }

    .page-header {
        margin-bottom: 0.9rem;
    }

    .page-title {
        font-size: 1.1rem;
    }

    .surface {
        padding: 0.75rem;
    }

    .toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .search-form {
        max-width: none;
        width: 100%;
        min-width: 0;
        flex: 1 1 auto;
        align-items: center;
    }

    .search-form .form-control {
        flex: 1 1 0;
        width: auto;
        min-width: 0;
    }

    .search-form .btn {
        flex: 0 0 auto;
        width: auto;
        min-width: 3.75rem;
    }

    .toolbar-end {
        width: 100%;
        display: grid;
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }

    .toolbar-end > .btn {
        width: 100%;
    }

    .toolbar-end > form {
        width: 100%;
    }

    .upload-form {
        display: grid !important;
        grid-template-columns: 1fr auto;
        width: 100%;
    }

    .upload-form .form-control {
        width: 100% !important;
    }

    .upload-form .btn {
        width: auto;
        min-width: 4.5rem;
    }

    .table-responsive {
        border: none;
        background: transparent;
        overflow: visible;
        border-radius: 0;
    }

    table.table thead {
        display: none;
    }

    table.table,
    table.table tbody {
        display: block;
        width: 100%;
    }

    table.table tbody tr {
        display: block;
        background: hsl(var(--card));
        border: 1px solid hsl(var(--border));
        border-radius: var(--radius);
        margin-bottom: 0.55rem;
        padding: 0.55rem 0.75rem;
    }

    table.table > :not(caption) > * > * {
        padding: 0.35rem 0;
    }

    table.table tbody td {
        display: flex;
        justify-content: space-between;
        align-items: flex-start;
        gap: 0.75rem;
        text-align: right;
        border: none;
        word-break: break-word;
        font-size: 0.875rem;
        line-height: 1.45;
    }

    table.table tbody tr:last-child > * {
        border-bottom: none;
    }

    table.table tbody td::before {
        content: attr(data-label);
        font-weight: 500;
        text-align: left;
        flex: 0 0 42%;
        color: hsl(var(--muted-foreground));
        font-size: 0.75rem;
        line-height: 1.45;
    }

    table.table tbody td[colspan] {
        justify-content: center;
        text-align: center;
    }

    table.table tbody td[colspan]::before {
        display: none;
    }

    .pagination {
        flex-wrap: wrap;
        justify-content: center;
    }

    .pagination .page-num {
        display: none;
    }

    .btn {
        min-height: 2.25rem;
    }

    .form-control,
    .form-select {
        font-size: 16px;
        min-height: 2.5rem;
    }

    .nav-pills .nav-link,
    .nav-tabs .nav-link {
        font-size: 0.8125rem;
        padding: 0.45rem 0.55rem;
    }

    .login-card {
        margin: 1.5rem auto;
    }

    .modal-dialog {
        margin: 0.75rem;
    }
}

@media (max-width: 380px) {
    .toolbar-end .btn {
        width: 100%;
    }
}

/* ============================================================
   系统设置：全局日志级别
   ============================================================ */
.level-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.25rem 0.75rem;
    border: 1px solid hsl(var(--border));
    border-radius: 9999px;
    background: hsl(var(--muted) / 0.55);
    font-size: 0.8125rem;
    font-weight: 500;
    white-space: nowrap;
}

.level-dot {
    width: 0.55rem;
    height: 0.55rem;
    border-radius: 9999px;
    display: inline-block;
    flex-shrink: 0;
}

.level-group .btn {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    min-width: auto;
    padding-left: 0.8rem;
    padding-right: 0.8rem;
}

.level-group .btn-check:checked + .btn {
    background: hsl(var(--primary));
    border-color: hsl(var(--primary));
    color: hsl(var(--primary-foreground));
}

.level-group .btn-check:checked + .btn .level-dot {
    box-shadow: 0 0 0 2px hsl(var(--card));
}

/* ============================================================
   控件紧凑化（覆盖 Bootstrap 默认尺寸，向 shadcn 密度对齐）
   ============================================================ */
.btn {
    --bs-btn-padding-y: 0.3rem;
    --bs-btn-padding-x: 0.8rem;
    --bs-btn-font-size: 0.8125rem;
    font-size: 0.8125rem;
}

.btn-sm {
    --bs-btn-padding-y: 0.16rem;
    --bs-btn-padding-x: 0.55rem;
    --bs-btn-font-size: 0.75rem;
    font-size: 0.75rem;
    padding: 0.16rem 0.55rem;
}

.btn-outline {
    min-width: 3.75rem;
}

.form-control,
.form-select {
    padding: 0.3rem 0.65rem;
    font-size: 0.8125rem;
}

.form-label {
    font-size: 0.8125rem;
    margin-bottom: 0.3rem;
}

.form-text {
    font-size: 0.75rem;
}

.input-group-text {
    font-size: 0.8125rem;
    padding: 0.3rem 0.65rem;
}

.form-check {
    font-size: 0.8125rem;
}

.dropdown-item {
    font-size: 0.8125rem;
    padding: 0.4rem 0.75rem;
}

.alert {
    font-size: 0.8125rem;
    padding: 0.6rem 0.85rem;
}

.modal-header,
.modal-body,
.modal-footer {
    font-size: 0.875rem;
}

/* 移动端保持 16px 防缩放，但高度收紧 */
@media (max-width: 767.98px) {
    .form-control,
    .form-select {
        min-height: 2.2rem;
        padding: 0.3rem 0.6rem;
    }

    .btn {
        --bs-btn-padding-y: 0.35rem;
    }
}

/* ============================================================
   导航栏美化：吸顶毛玻璃 + 当前页 pill 高亮 + 用户区分隔
   ============================================================ */
.app-navbar {
    position: sticky;
    top: 0;
    z-index: 1030;
    background: hsl(var(--card) / 0.86);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.app-navbar .navbar-brand {
    font-weight: 650;
    letter-spacing: -0.01em;
}

.app-navbar .nav-link {
    padding: 0.28rem 0.72rem;
    border-radius: calc(var(--radius) - 0.3rem);
    font-weight: 500;
    transition: background-color 0.15s ease, color 0.15s ease;
}

.app-navbar .navbar-nav {
    gap: 0.1rem;
}

.app-navbar .nav-link:hover {
    background: hsl(var(--accent));
    color: hsl(var(--foreground));
}

/* 当前页：主题色 pill，与按钮同语言，一眼可见 */
.app-navbar .nav-link.active {
    background: hsl(var(--primary));
    color: hsl(var(--primary-foreground));
    font-weight: 600;
}

.app-navbar .nav-link.active:hover {
    background: hsl(var(--primary) / 0.88);
    color: hsl(var(--primary-foreground));
}

/* 用户区与导航之间的细分隔线；主题切换改为 ghost 式弱化 */
.app-user::before {
    content: "";
    width: 1px;
    height: 1.25rem;
    background: hsl(var(--border));
    margin: 0 0.35rem;
    align-self: center;
}

.app-user .btn-outline {
    border-color: transparent;
    background: transparent;
    color: hsl(var(--muted-foreground));
}

.app-user .btn-outline:hover {
    background: hsl(var(--accent));
    color: hsl(var(--foreground));
}

@media (max-width: 767.98px) {
    .app-user::before {
        display: none;
    }

    .app-navbar .nav-link {
        padding: 0.45rem 0.75rem;
    }
}