/* ─────────────────────────────────────────────
   JumpHost 后台全局样式
   ───────────────────────────────────────────── */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&display=swap');

:root {
    --bg:          #0f1117;
    --bg-card:     #1a1d27;
    --bg-hover:    #22263a;
    --border:      #2a2d3e;
    --accent:      #7c6af7;
    --accent-dim:  #5a4fd4;
    --success:     #22c55e;
    --danger:      #ef4444;
    --warning:     #f59e0b;
    --text:        #e8eaf0;
    --text-muted:  #8b8fa8;
    --sidebar-w:   220px;
    --radius:      10px;
    --shadow:      0 4px 24px rgba(0,0,0,.35);
}

[data-theme="light"] {
    --bg:          #f0f2f7;
    --bg-card:     #ffffff;
    --bg-hover:    #e8eaf0;
    --border:      #dde1ed;
    --accent:      #6c5ce7;
    --accent-dim:  #5a4fd4;
    --success:     #16a34a;
    --danger:      #dc2626;
    --warning:     #d97706;
    --text:        #1a1d2e;
    --text-muted:  #6b7280;
    --shadow:      0 4px 24px rgba(0,0,0,.10);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: 'DM Sans', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
    line-height: 1.6;
    min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { opacity: .85; }

/* ── 布局 ── */
.layout {
    display: flex;
    min-height: 100vh;
}

/* ── 侧边栏 ── */
.sidebar {
    width: var(--sidebar-w);
    background: var(--bg-card);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0; bottom: 0;
    z-index: 100;
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 22px 20px 18px;
    border-bottom: 1px solid var(--border);
}

.sidebar-logo .logo-icon {
    width: 32px; height: 32px;
    background: linear-gradient(135deg, var(--accent), #a78bfa);
    border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    font-size: 16px; font-weight: 700; color: #fff;
}

.sidebar-logo .logo-text {
    font-size: 16px; font-weight: 700; color: var(--text);
    letter-spacing: .02em;
}

.sidebar-nav {
    padding: 12px 10px;
    flex: 1;
    overflow-y: auto;
}

.nav-section {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: .1em;
    color: var(--text-muted);
    padding: 14px 10px 6px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    border-radius: var(--radius);
    color: var(--text-muted);
    font-size: 13.5px;
    font-weight: 500;
    transition: background .15s, color .15s;
    cursor: pointer;
    text-decoration: none;
    margin-bottom: 2px;
}

.nav-item:hover {
    background: var(--bg-hover);
    color: var(--text);
    opacity: 1;
}

.nav-item.active {
    background: rgba(124,106,247,.15);
    color: var(--accent);
}

.nav-item .icon { width: 18px; text-align: center; font-size: 15px; }

.sidebar-footer {
    padding: 14px 10px;
    border-top: 1px solid var(--border);
}

/* ── 主内容区 ── */
.main {
    margin-left: var(--sidebar-w);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.topbar {
    height: 58px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 28px;
    position: sticky;
    top: 0;
    z-index: 50;
}

.topbar-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 16px;
    color: var(--text-muted);
    font-size: 13px;
}

.content {
    padding: 28px;
    flex: 1;
}

/* ── 卡片 ── */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 20px;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.card-title {
    font-size: 15px;
    font-weight: 600;
}

/* ── 统计卡片 ── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.stat-label { font-size: 12px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .06em; }
.stat-value { font-size: 28px; font-weight: 700; color: var(--text); }
.stat-sub   { font-size: 12px; color: var(--text-muted); }

.stat-card.accent { border-color: rgba(124,106,247,.4); }
.stat-card.accent .stat-value { color: var(--accent); }

.stats-grid-3 {
    grid-template-columns: repeat(3, 1fr);
}
@media (max-width: 767px) {
    .stats-grid-3 { grid-template-columns: 1fr; }
}

@keyframes fadeInUp {
    from { opacity:0; transform:translateX(-50%) translateY(10px); }
    to   { opacity:1; transform:translateX(-50%) translateY(0); }
}

/* ── 按钮 ── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 13.5px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: opacity .15s, transform .1s;
    text-decoration: none;
    white-space: nowrap;
}
.btn:hover { opacity: .88; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary  { background: var(--accent); color: #fff; }
.btn-danger   { background: var(--danger);  color: #fff; }
.btn-warning  { background: var(--warning); color: #1a1a2e; }

/* ── 汉堡按钮 ── */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    width: 32px; height: 32px;
}
.hamburger span {
    display: block;
    height: 2px;
    background: var(--text-muted);
    border-radius: 2px;
    transition: .2s;
}

/* ── 主题切换按钮 ── */
.theme-toggle {
    background: var(--bg-hover);
    border: 1px solid var(--border);
    color: var(--text-muted);
    border-radius: 8px;
    width: 34px; height: 34px;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer;
    font-size: 16px;
    transition: color .2s, background .2s;
}
.theme-toggle:hover { color: var(--text); background: var(--bg-hover); }

/* ── 用户下拉菜单 ── */
.user-menu { position: relative; }
.user-btn {
    display: flex; align-items: center; gap: 8px;
    background: var(--bg-hover);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 5px 12px 5px 6px;
    cursor: pointer;
    color: var(--text);
    font-size: 13px; font-weight: 500;
    transition: background .15s;
}
.user-btn:hover { background: var(--border); }
.user-avatar {
    width: 26px; height: 26px;
    background: linear-gradient(135deg, var(--accent), #a78bfa);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 12px; font-weight: 700; color: #fff;
}
.user-name { max-width: 80px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.user-dropdown {
    display: none;
    position: absolute; top: calc(100% + 8px); right: 0;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    min-width: 180px;
    z-index: 200;
    overflow: hidden;
    animation: dropIn .15s ease;
}
.user-dropdown.open { display: block; }
@keyframes dropIn {
    from { opacity:0; transform:translateY(-6px); }
    to   { opacity:1; transform:none; }
}
.user-dropdown-info {
    display: flex; align-items: center; gap: 10px;
    padding: 14px 14px 10px;
}
.user-dropdown-item {
    display: block;
    padding: 9px 16px;
    font-size: 13px;
    color: var(--text-muted);
    text-decoration: none;
    transition: background .15s, color .15s;
}
.user-dropdown-item:hover { background: var(--bg-hover); color: var(--text); opacity:1; }
.user-dropdown-item.danger { color: var(--danger); }
.user-dropdown-item.danger:hover { background: rgba(239,68,68,.1); }

/* ── 移动端遮罩 ── */
.sidebar-mask {
    display: none;
    position: fixed; inset: 0;
    background: rgba(0,0,0,.5);
    z-index: 99;
}
.sidebar-mask.open { display: block; }

/* ── 响应式 ── */
@media (max-width: 1024px) {
    :root { --sidebar-w: 200px; }
    .content { padding: 20px; }
    .card { padding: 18px; }
    .stats-grid { gap: 12px; }
}

@media (max-width: 768px) {
    :root { --sidebar-w: 0; }
    
    .hamburger { display: flex; }
    
    .sidebar {
        width: 100%;
        max-width: 280px;
        transform: translateX(-100%);
        transition: transform .25s ease;
        z-index: 100;
        box-shadow: 2px 0 12px rgba(0,0,0,.3);
    }
    .sidebar.open { transform: translateX(0); }
    
    .sidebar-nav { padding: 8px 8px; }
    .nav-item { padding: 8px 10px; font-size: 13px; }
    
    .main { margin-left: 0; }
    
    .topbar {
        height: 56px;
        padding: 0 12px;
        gap: 8px;
    }
    
    .topbar-title {
        font-size: 14px;
        flex: 1;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
    
    .topbar-right {
        gap: 8px;
        font-size: 12px;
    }
    
    .content {
        padding: 12px;
    }
    
    .card {
        padding: 16px;
        margin-bottom: 16px;
    }
    
    .card-header {
        margin-bottom: 16px;
    }
    
    .card-title {
        font-size: 14px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
        margin-bottom: 16px;
    }
    
    .stat-card {
        padding: 14px;
        gap: 4px;
    }
    
    .stat-label { font-size: 11px; }
    .stat-value { font-size: 22px; }
    .stat-sub { font-size: 11px; }
    
    .stats-grid-3 {
        grid-template-columns: 1fr 1fr;
    }
    
    .table-wrap {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        margin: 0 -16px;
        padding: 0 16px;
    }
    
    table {
        font-size: 12px;
    }
    
    th, td {
        padding: 8px 10px;
    }
    
    th {
        font-size: 10px;
    }
    
    .user-name { display: none; }
    
    .btn {
        padding: 6px 12px;
        font-size: 12px;
    }
    
    .btn-sm {
        padding: 4px 8px;
        font-size: 11px;
    }
    
    .form-control {
        padding: 8px 12px;
        font-size: 13px;
    }
    
    .form-label {
        font-size: 12px;
    }
    
    .pagination {
        gap: 4px;
        padding-top: 12px;
    }
    
    .page-btn {
        padding: 5px 10px;
        font-size: 12px;
    }
    
    .alert {
        padding: 10px 12px;
        font-size: 12px;
        gap: 6px;
    }
    
    .badge {
        padding: 2px 8px;
        font-size: 10px;
    }
    
    /* 隐藏部分列在平板 */
    table th:nth-child(n+5),
    table td:nth-child(n+5) { display: none; }
    
    /* 两列布局改为单列 */
    .grid-2 {
        grid-template-columns: 1fr !important;
    }
    
    .modal {
        max-width: calc(100% - 40px);
    }
    
    .modal-overlay {
        padding: 16px;
    }
    
    .truncate {
        max-width: 180px;
    }
}

@media (max-width: 480px) {
    :root {
        --sidebar-w: 0;
        --radius: 8px;
    }
    
    .topbar {
        height: 52px;
        padding: 0 10px;
    }
    
    .topbar-title {
        font-size: 13px;
    }
    
    .topbar-right {
        gap: 6px;
    }
    
    .content {
        padding: 10px;
    }
    
    .card {
        padding: 12px;
        margin-bottom: 12px;
        border-radius: 8px;
    }
    
    .card-header {
        margin-bottom: 12px;
    }
    
    .card-title {
        font-size: 13px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 8px;
        margin-bottom: 12px;
    }
    
    .stats-grid-3 {
        grid-template-columns: 1fr;
    }
    
    .stat-card {
        padding: 12px;
    }
    
    .stat-label { font-size: 10px; }
    .stat-value { font-size: 20px; }
    .stat-sub { font-size: 10px; }
    
    .btn {
        padding: 6px 10px;
        font-size: 11px;
        gap: 4px;
    }
    
    .btn-sm {
        padding: 4px 8px;
        font-size: 10px;
    }
    
    .form-control {
        padding: 8px 10px;
        font-size: 12px;
    }
    
    .form-label {
        font-size: 11px;
        margin-bottom: 4px;
    }
    
    .form-group {
        margin-bottom: 14px;
    }
    
    table {
        font-size: 11px;
    }
    
    th, td {
        padding: 6px 8px;
    }
    
    th {
        font-size: 9px;
    }
    
    /* 超小屏只显示前3列 */
    table th:nth-child(n+4),
    table td:nth-child(n+4) { display: none; }
    
    .pagination {
        gap: 3px;
        padding-top: 10px;
        flex-wrap: wrap;
    }
    
    .page-btn {
        padding: 4px 8px;
        font-size: 11px;
    }
    
    .alert {
        padding: 8px 10px;
        font-size: 11px;
        gap: 4px;
    }
    
    .badge {
        padding: 2px 6px;
        font-size: 9px;
    }
    
    .modal {
        max-width: calc(100% - 20px);
        padding: 16px;
    }
    
    .modal-overlay {
        padding: 10px;
    }
    
    .modal-header {
        margin-bottom: 16px;
    }
    
    .modal-title {
        font-size: 14px;
    }
    
    .modal-footer {
        margin-top: 16px;
        padding-top: 12px;
        gap: 8px;
    }
    
    .truncate {
        max-width: 120px;
    }
    
    .text-sm { font-size: 11px; }
    
    .gap-2 { gap: 6px; }
    .gap-3 { gap: 10px; }
    
    .mt-1 { margin-top: 3px; }
    .mt-2 { margin-top: 6px; }
    .mt-3 { margin-top: 12px; }
    
    /* 登录页 */
    .login-card {
        padding: 28px 20px;
        max-width: calc(100% - 20px);
    }
    
    .login-logo {
        margin-bottom: 24px;
    }
    
    .login-logo .logo-icon {
        width: 36px;
        height: 36px;
        font-size: 18px;
    }
    
    .login-logo .logo-text {
        font-size: 18px;
    }
}
.btn-ghost    { background: transparent; color: var(--text-muted); border: 1px solid var(--border); }
.btn-ghost:hover { color: var(--text); background: var(--bg-hover); opacity:1; }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-success { background: var(--success); color: #fff; }
.btn-warning { background: var(--warning); color: #fff; }

/* ── 表单 ── */
.form-group {
    margin-bottom: 18px;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: .05em;
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-size: 14px;
    font-family: inherit;
    outline: none;
    transition: border .2s;
}
.form-control:focus { border-color: var(--accent); }
.form-control::placeholder { color: var(--text-muted); }

select.form-control option { background: var(--bg-card); }

textarea.form-control { resize: vertical; min-height: 80px; }

.form-hint { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

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

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13.5px;
}

thead tr {
    border-bottom: 1px solid var(--border);
}

th {
    text-align: left;
    padding: 10px 14px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: .07em;
    color: var(--text-muted);
    font-weight: 600;
    white-space: nowrap;
}

td {
    padding: 12px 14px;
    border-bottom: 1px solid rgba(255,255,255,.04);
    vertical-align: middle;
    word-break: break-word;
}

tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(255,255,255,.02); }

/* 移动端表格优化 */
@media (max-width: 768px) {
    table {
        font-size: 12px;
    }
    
    th {
        padding: 8px 10px;
        font-size: 10px;
    }
    
    td {
        padding: 8px 10px;
    }
    
    /* 响应式表格：超长内容换行 */
    td {
        max-width: 120px;
        overflow: hidden;
        text-overflow: ellipsis;
    }
}

/* ── 徽章 ── */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11.5px;
    font-weight: 600;
    letter-spacing: .03em;
}
.badge-active  { background: rgba(34,197,94,.15);  color: var(--success); }
.badge-paused  { background: rgba(239,68,68,.15);   color: var(--danger); }
.badge-warning { background: rgba(245,158,11,.15);  color: var(--warning); }

/* ── 分页 ── */
.pagination {
    display: flex;
    gap: 6px;
    align-items: center;
    justify-content: flex-end;
    padding-top: 16px;
}

.page-btn {
    padding: 6px 12px;
    border-radius: 7px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-muted);
    font-size: 13px;
    cursor: pointer;
    text-decoration: none;
    transition: all .15s;
}
.page-btn:hover, .page-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
    opacity: 1;
}

/* ── Alert ── */
.alert {
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 13.5px;
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.alert-success { background: rgba(34,197,94,.12);  border: 1px solid rgba(34,197,94,.3);  color: var(--success); }
.alert-danger  { background: rgba(239,68,68,.12);   border: 1px solid rgba(239,68,68,.3);   color: #ff8080; }
.alert-warning { background: rgba(245,158,11,.12);  border: 1px solid rgba(245,158,11,.3);  color: var(--warning); }

/* ── 登录页专用 ── */
.login-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg);
}

.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 44px 40px;
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow);
}

.login-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 32px;
}

.login-logo .logo-icon {
    width: 40px; height: 40px;
    background: linear-gradient(135deg, var(--accent), #a78bfa);
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: 20px; font-weight: 700; color: #fff;
}

.login-logo .logo-text { font-size: 20px; font-weight: 700; }
.login-logo .logo-sub  { font-size: 12px; color: var(--text-muted); }

/* ── 工具 ── */
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 16px; }
.text-muted { color: var(--text-muted); }
.text-sm { font-size: 12px; }
.text-danger { color: var(--danger); }
.text-success { color: var(--success); }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 260px; display: inline-block; }

/* 响应式工具类 */
@media (max-width: 768px) {
    .hide-mobile { display: none !important; }
    .show-mobile { display: block !important; }
    .text-sm { font-size: 11px; }
}

@media (max-width: 480px) {
    .hide-small { display: none !important; }
    .show-small { display: block !important; }
    .text-sm { font-size: 10px; }
}

/* ── Modal 弹窗 ── */
.modal-overlay {
    position: fixed; inset: 0;
    background: rgba(0,0,0,.6);
    backdrop-filter: blur(3px);
    display: flex; align-items: center; justify-content: center;
    z-index: 1000;
    padding: 20px;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}
.modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: 0 8px 48px rgba(0,0,0,.5);
    width: 100%; max-width: 460px;
    padding: 24px;
    animation: modalIn .18s ease;
    max-height: 90vh;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}
@keyframes modalIn {
    from { opacity:0; transform: translateY(-12px) scale(.97); }
    to   { opacity:1; transform: none; }
}
.modal-header {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 20px;
    gap: 12px;
}
.modal-title {
    font-size: 16px; font-weight: 600; color: var(--text);
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.modal-close {
    background: none; border: none; color: var(--text-muted);
    font-size: 20px; cursor: pointer; line-height: 1;
    padding: 0 4px; border-radius: 4px; transition: color .15s;
    flex-shrink: 0;
}
.modal-close:hover { color: var(--text); }
.modal-footer {
    display: flex; justify-content: flex-end; gap: 10px;
    margin-top: 24px; padding-top: 16px;
    border-top: 1px solid var(--border);
    flex-wrap: wrap;
}

@media (max-width: 480px) {
    .modal-overlay {
        padding: 10px;
        align-items: flex-end;
    }
    
    .modal {
        max-width: 100%;
        max-height: 85vh;
        border-radius: 12px 12px 0 0;
        padding: 16px;
    }
    
    .modal-header {
        margin-bottom: 16px;
    }
    
    .modal-title {
        font-size: 15px;
    }
    
    .modal-footer {
        margin-top: 16px;
        padding-top: 12px;
        gap: 8px;
    }
    
    .modal-footer .btn {
        flex: 1;
        justify-content: center;
    }
}