/* ==========================================================================
   后台 & 登录页样式（依赖 app.css 的变量与基础组件）
   ========================================================================== */

/* ---------------- 登录页 ---------------- */
.login-page {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
    position: relative;
    overflow: hidden;
}

.login-page::before {
    content: '';
    position: absolute;
    inset: -30% -10% auto -10%;
    height: 70vh;
    background:
        radial-gradient(closest-side, rgba(59, 130, 246, .22), transparent 70%),
        radial-gradient(closest-side, rgba(139, 92, 246, .18), transparent 70%);
    background-position: 20% 30%, 75% 40%;
    background-size: 55% 70%, 50% 65%;
    background-repeat: no-repeat;
    filter: blur(10px);
    pointer-events: none;
}

.login-card {
    position: relative;
    width: 100%;
    max-width: 380px;
    padding: 34px 32px 30px;
    border-radius: 20px;
    background: var(--bg-elev);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
}

.login-logo {
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    margin-bottom: 18px;
    border-radius: 13px;
    background: linear-gradient(135deg, #3b82f6, #6366f1 55%, #8b5cf6);
    color: #fff;
    box-shadow: 0 6px 18px rgba(59, 130, 246, .32);
}

.login-logo svg {
    width: 22px;
    height: 22px;
}

.login-card h1 {
    margin: 0 0 6px;
    font-size: 20px;
    font-weight: 650;
    letter-spacing: -.02em;
}

.login-card .sub {
    margin: 0 0 24px;
    font-size: 13px;
    color: var(--text-3);
}

.login-card .field {
    margin-bottom: 14px;
}

.login-card .input {
    height: 42px;
}

.login-submit {
    width: 100%;
    height: 42px;
    margin-top: 8px;
}

.login-foot {
    margin-top: 18px;
    text-align: center;
    font-size: 12px;
    color: var(--text-3);
}

.login-error {
    display: none;
    margin-top: 12px;
    padding: 9px 12px;
    border-radius: 8px;
    background: var(--danger-soft);
    color: var(--danger);
    font-size: 12.5px;
}

.login-error.show {
    display: block;
}

/* ---------------- 后台布局 ---------------- */
.admin {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 224px;
    display: flex;
    flex-direction: column;
    padding: 18px 14px;
    background: var(--bg-elev);
    border-right: 1px solid var(--border);
    z-index: 30;
}

.sidebar .brand {
    padding: 0 8px 20px;
}

.nav {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    height: 38px;
    padding: 0 10px;
    border-radius: 9px;
    color: var(--text-2);
    font-size: 13.5px;
    font-weight: 500;
    transition: background .15s, color .15s;
}

.nav-item svg {
    width: 17px;
    height: 17px;
    opacity: .8;
}

.nav-item:hover {
    background: var(--bg-hover);
    color: var(--text);
}

.nav-item.active {
    background: var(--primary-soft);
    color: var(--primary);
}

.nav-item.active svg {
    opacity: 1;
}

.nav-sep {
    margin: 14px 10px 8px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: var(--text-3);
    opacity: .8;
}

.sidebar-foot {
    margin-top: auto;
    padding-top: 14px;
    border-top: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 8px 8px 12px;
}

.sidebar-user .name {
    font-size: 13px;
    font-weight: 600;
}

.sidebar-user .role {
    font-size: 11px;
    color: var(--text-3);
}

.main {
    flex: 1;
    margin-left: 224px;
    min-width: 0;
    padding: 0 32px 60px;
}

.admin-head {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 26px 0 20px;
    flex-wrap: wrap;
}

.admin-head h1 {
    margin: 0;
    font-size: 20px;
    font-weight: 650;
    letter-spacing: -.02em;
}

.admin-head .desc {
    margin: 3px 0 0;
    font-size: 12.5px;
    color: var(--text-3);
}

.admin-head .spacer {
    margin-left: auto;
}

/* ---------------- 统计卡片 ---------------- */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 14px;
    margin-bottom: 22px;
}

.stat-card {
    padding: 16px 18px;
    border-radius: var(--radius);
    background: var(--bg-elev);
    border: 1px solid var(--border);
    transition: border-color .18s, box-shadow .18s;
}

.stat-card:hover {
    border-color: var(--border-strong);
    box-shadow: var(--shadow-sm);
}

.stat-card .label {
    display: flex;
    align-items: center;
    gap: 7px;
    font-size: 12px;
    color: var(--text-3);
    margin-bottom: 8px;
}

.stat-card .label svg {
    width: 14px;
    height: 14px;
    opacity: .7;
}

.stat-card .value {
    font-size: 24px;
    font-weight: 650;
    letter-spacing: -.02em;
    font-variant-numeric: tabular-nums;
    line-height: 1.2;
}

.stat-card .value small {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-3);
    margin-left: 4px;
}

/* ---------------- 面板 ---------------- */
.panel {
    border-radius: var(--radius);
    background: var(--bg-elev);
    border: 1px solid var(--border);
    overflow: hidden;
    margin-bottom: 20px;
}

.panel-head {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px 18px;
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
}

.panel-head h2 {
    margin: 0;
    font-size: 14px;
    font-weight: 600;
}

.panel-head .spacer {
    margin-left: auto;
}

.panel-body {
    padding: 18px;
}

.panel-body.tight {
    padding: 0;
}

/* ---------------- 表格 ---------------- */
.table-wrap {
    overflow-x: auto;
}

table.data {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    min-width: 860px;
}

table.data th {
    text-align: left;
    font-weight: 500;
    font-size: 12px;
    color: var(--text-3);
    padding: 10px 14px;
    background: var(--bg-sub);
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
    position: sticky;
    top: 0;
    z-index: 1;
}

table.data td {
    padding: 11px 14px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

table.data tr:last-child td {
    border-bottom: 0;
}

table.data tbody tr:hover {
    background: var(--bg-hover);
}

.cell-file {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 220px;
}

.cell-thumb {
    width: 42px;
    height: 42px;
    flex-shrink: 0;
    border-radius: 7px;
    object-fit: cover;
    background: var(--bg-sub);
    border: 1px solid var(--border);
    cursor: zoom-in;
}

.cell-name {
    max-width: 240px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-weight: 500;
}

.cell-sub {
    font-size: 11.5px;
    color: var(--text-3);
    margin-top: 1px;
}

.cell-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    max-width: 260px;
    color: var(--text-2);
    font-family: var(--mono);
    font-size: 11.5px;
    cursor: pointer;
    padding: 3px 6px;
    margin-left: -6px;
    border-radius: 6px;
    transition: background .15s, color .15s;
}

.cell-link:hover {
    background: var(--primary-soft);
    color: var(--primary);
}

.cell-link span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.cell-link svg {
    width: 12px;
    height: 12px;
    flex-shrink: 0;
    opacity: .55;
}

.row-actions {
    display: flex;
    gap: 4px;
    justify-content: flex-end;
}

.icon-btn {
    display: grid;
    place-items: center;
    width: 28px;
    height: 28px;
    border: 1px solid transparent;
    border-radius: 7px;
    background: transparent;
    color: var(--text-3);
    transition: all .15s;
}

.icon-btn:hover {
    background: var(--bg-sub);
    color: var(--text);
}

.icon-btn.danger:hover {
    background: var(--danger-soft);
    color: var(--danger);
}

.icon-btn svg {
    width: 15px;
    height: 15px;
}

.checkbox {
    width: 15px;
    height: 15px;
    accent-color: var(--primary);
    cursor: pointer;
}

.bulk-bar {
    display: none;
    align-items: center;
    gap: 10px;
    padding: 10px 18px;
    background: var(--primary-soft);
    border-bottom: 1px solid var(--border);
    font-size: 12.5px;
    color: var(--primary);
}

.bulk-bar.show {
    display: flex;
}

/* ---------------- 设置页 ---------------- */
.setting-layout {
    display: grid;
    grid-template-columns: 180px 1fr;
    gap: 24px;
    align-items: start;
}

.setting-nav {
    position: sticky;
    top: 20px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.setting-nav a {
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 13px;
    color: var(--text-2);
    transition: background .15s, color .15s;
}

.setting-nav a:hover {
    background: var(--bg-hover);
    color: var(--text);
}

.setting-nav a.active {
    background: var(--primary-soft);
    color: var(--primary);
    font-weight: 500;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.switch {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 10px;
    cursor: pointer;
    transition: border-color .15s, background .15s;
}

.switch:hover {
    border-color: var(--border-strong);
    background: var(--bg-hover);
}

.switch input {
    margin-top: 2px;
    width: 16px;
    height: 16px;
    accent-color: var(--primary);
    flex-shrink: 0;
}

.switch .sw-title {
    font-size: 13px;
    font-weight: 500;
}

.switch .sw-desc {
    font-size: 12px;
    color: var(--text-3);
    margin-top: 1px;
    line-height: 1.55;
}

.driver-card {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: 14px;
}

.driver-card+.driver-card {
    margin-top: 0;
}

.driver-head {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 13px 16px;
    background: var(--bg-sub);
}

.driver-head .name {
    font-size: 13.5px;
    font-weight: 600;
}

.driver-head .spacer {
    margin-left: auto;
}

.driver-body {
    padding: 16px;
}

.driver-toggle {
    position: relative;
    width: 36px;
    height: 20px;
    border-radius: 999px;
    background: var(--border-strong);
    border: 0;
    padding: 0;
    transition: background .18s;
    flex-shrink: 0;
}

.driver-toggle::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #fff;
    transition: transform .18s;
    box-shadow: 0 1px 2px rgba(0, 0, 0, .2);
}

.driver-toggle.on {
    background: var(--success);
}

.driver-toggle.on::after {
    transform: translateX(16px);
}

.test-result {
    display: none;
    margin-top: 10px;
    padding: 9px 12px;
    border-radius: 8px;
    font-size: 12.5px;
    word-break: break-all;
    line-height: 1.6;
}

.test-result.show {
    display: block;
}

.test-result.ok {
    background: var(--success-soft);
    color: var(--success);
}

.test-result.err {
    background: var(--danger-soft);
    color: var(--danger);
}

.save-bar {
    position: sticky;
    bottom: 0;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    margin-top: 4px;
    background: color-mix(in srgb, var(--bg-elev) 92%, transparent);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--border);
    border-radius: 0 0 var(--radius) var(--radius);
}

.save-bar .hint {
    font-size: 12px;
    color: var(--text-3);
}

.save-bar .spacer {
    margin-left: auto;
}

/* ---------------- 移动端 ---------------- */
@media (max-width: 900px) {
    .sidebar {
        position: static;
        width: 100%;
        flex-direction: row;
        align-items: center;
        padding: 10px 14px;
        border-right: 0;
        border-bottom: 1px solid var(--border);
        overflow-x: auto;
    }

    .sidebar .brand {
        padding: 0 14px 0 0;
    }

    .nav {
        flex-direction: row;
        gap: 4px;
    }

    .nav-item {
        height: 34px;
        padding: 0 10px;
        white-space: nowrap;
    }

    .nav-item span {
        display: none;
    }

    .nav-sep,
    .sidebar-foot,
    .sidebar-user {
        display: none;
    }

    .admin {
        flex-direction: column;
    }

    .main {
        margin-left: 0;
        padding: 0 16px 40px;
    }

    .setting-layout {
        grid-template-columns: 1fr;
    }

    .stat-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .stat-card {
        padding: 13px 14px;
    }

    .stat-card .value {
        font-size: 20px;
    }

    .setting-nav {
        position: static;
        flex-direction: row;
        overflow-x: auto;
    }

    .form-row {
        grid-template-columns: 1fr;
    }
}

/* ---------------- 安装向导 ---------------- */
.install-page {
    min-height: 100vh;
    padding: 40px 20px 60px;
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.install-card {
    width: 100%;
    max-width: 620px;
}

.install-head {
    text-align: center;
    margin-bottom: 24px;
}

.install-head .login-logo {
    margin: 0 auto 16px;
}

.install-head h1 {
    margin: 0 0 6px;
    font-size: 22px;
    font-weight: 650;
    letter-spacing: -.02em;
}

.install-head p {
    margin: 0;
    font-size: 13px;
    color: var(--text-3);
}

.env-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.env-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 9px 18px;
    font-size: 13px;
    border-bottom: 1px solid var(--border);
}

.env-item:last-child {
    border-bottom: 0;
}

.env-item::before {
    content: '';
    width: 7px;
    height: 7px;
    border-radius: 50%;
    flex-shrink: 0;
    background: var(--success);
}

.env-item.bad::before {
    background: var(--danger);
}

.env-name {
    flex: 1;
    font-weight: 500;
}

.env-need {
    color: var(--text-3);
    font-size: 12px;
    width: 90px;
}

.env-cur {
    width: 90px;
    text-align: right;
    color: var(--text-2);
    font-size: 12px;
}

.env-item.bad .env-cur {
    color: var(--danger);
    font-weight: 500;
}

.install-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    padding: 6px 0 20px;
}

.install-actions .btn {
    height: 40px;
    padding: 0 20px;
}

.install-tip {
    display: none;
    margin-bottom: 16px;
    padding: 10px 14px;
    border-radius: 9px;
    font-size: 12.5px;
    line-height: 1.6;
}

.install-tip.show {
    display: block;
}

.install-tip.ok {
    background: var(--success-soft);
    color: var(--success);
}

.install-tip.err {
    background: var(--danger-soft);
    color: var(--danger);
}

@media (max-width: 640px) {
    .install-page {
        padding: 24px 14px 40px;
    }

    .env-need {
        display: none;
    }
}

table.data td.cell-time {
    white-space: nowrap;
}

/* ---------------- 访问控制 / IP 白名单 ---------------- */
.panel-split {
    height: 1px;
    background: var(--border);
    margin: 16px 0;
}

.ip-guard {
    margin-top: 14px;
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--bg-sub);
    transition: opacity .18s;
}

.ip-guard.is-off {
    opacity: .55;
    filter: grayscale(.35);
}

.ip-current {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.ip-current code {
    padding: 5px 10px;
    border-radius: 7px;
    background: var(--bg-elev);
    border: 1px solid var(--border);
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 13px;
    color: var(--text);
}

.ip-state {
    font-size: 12px;
    display: none;
}

.ip-state.show {
    display: inline;
}

.ip-state.ok {
    color: var(--success);
}

.ip-state.bad {
    color: var(--danger);
}

.radio-row {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.radio {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 9px;
    background: var(--bg-elev);
    cursor: pointer;
    font-size: 13px;
    transition: border-color .15s, background .15s;
}

.radio:hover {
    border-color: var(--border-strong);
}

.radio input {
    accent-color: var(--primary);
    margin: 0;
}

.radio:has(input:checked) {
    border-color: var(--primary);
    background: var(--primary-soft);
    color: var(--primary);
    font-weight: 500;
}

.radio em {
    font-style: normal;
    font-size: 11px;
    font-weight: 500;
    padding: 1px 6px;
    margin-left: 6px;
    border-radius: 5px;
    background: var(--success-soft);
    color: var(--success);
    vertical-align: 1px;
}

.hint.warning {
    margin-top: 8px;
    color: var(--danger);
}

.hint code,
.unlock-tip code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 11.5px;
    padding: 1px 5px;
    border-radius: 4px;
    background: rgba(16, 24, 40, .06);
    color: var(--text-2);
}

.hint code {
    white-space: nowrap;
}

.unlock-tip code {
    word-break: break-all;
}

.unlock-tip {
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px dashed var(--border);
    padding-bottom: 0;
}

@media (max-width: 640px) {
    .ip-guard {
        padding: 13px;
    }

    /* 移动端不做悬浮保存栏，避免遮挡表单内容 */
    .save-bar {
        position: static;
        background: var(--bg-elev);
        backdrop-filter: none;
        border-radius: 0;
        margin-top: 0;
    }

    .save-bar .hint {
        display: none;
    }

    .save-bar .btn {
        width: 100%;
    }

    .hint code {
        white-space: normal;
        word-break: break-word;
    }

    .radio-row {
        flex-direction: column;
    }

    .radio {
        width: 100%;
    }
}

/* 侧边栏版本号 */
.sidebar-ver {
    padding: 10px 12px 2px;
    font-size: 11px;
    color: var(--text-3);
    letter-spacing: .02em;
}