/*!
 * CloudOps Theme - main.css
 * 设计令牌 + 全局重置 + 通用组件
 * 风格：科技蓝、清爽、大气
 */

/* ============ Design Tokens ============ */
:root {
    /* 背景层 */
    --bg-white: #FFFFFF;
    --bg-soft: #F5F8FC;        /* 浅蓝灰，区块间隔 */
    --bg-soft-2: #EDF3FB;
    --bg-blue-soft: #E6F0FF;   /* 浅蓝色块 */
    --bg-blue-softer: #F0F6FF;
    --bg-dark: #0A1530;        /* footer / 深色区 */

    /* 蓝色系（主） */
    --blue: #0066FF;
    --blue-deep: #003D99;
    --blue-dark: #001A66;      /* hero 渐变深端 */
    --blue-hover: #0052CC;
    --blue-light: #4D8FFF;
    --blue-lighter: #80B0FF;
    --cyan: #00B4D8;           /* 状态/在线 */

    /* 文字 */
    --ink: #1A1A2E;
    --ink-2: #2D3142;
    --ink-soft: #5C6470;
    --ink-dim: #8A93A6;
    --ink-faded: #B0B8C7;
    --ink-white: #FFFFFF;
    --ink-white-soft: rgba(255, 255, 255, 0.75);
    --ink-white-dim: rgba(255, 255, 255, 0.55);

    /* 边框/分隔 */
    --line: #E8ECF2;
    --line-soft: #F0F3F8;
    --line-strong: #D5DCE5;
    --line-dark: rgba(255, 255, 255, 0.12);

    /* 状态色 */
    --success: #00B976;
    --success-soft: #E6F8F0;
    --warning: #FF9500;
    --warning-soft: #FFF4E5;
    --danger: #FF4D4F;
    --danger-soft: #FFEBEC;
    --info: var(--blue);
    --info-soft: var(--bg-blue-soft);

    /* 字体 */
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'HarmonyOS Sans SC',
            'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    --font-num: 'Inter', -apple-system, sans-serif;

    /* 阴影 */
    --shadow-1: 0 1px 2px rgba(26, 26, 46, 0.04), 0 2px 8px rgba(26, 26, 46, 0.04);
    --shadow-2: 0 4px 12px rgba(26, 26, 46, 0.06), 0 8px 24px rgba(26, 26, 46, 0.04);
    --shadow-3: 0 8px 24px rgba(26, 26, 46, 0.08), 0 16px 40px rgba(26, 26, 46, 0.06);
    --shadow-blue: 0 8px 24px rgba(0, 102, 255, 0.18);
    --shadow-blue-strong: 0 12px 36px rgba(0, 102, 255, 0.25);

    /* 圆角 */
    --radius-xs: 4px;
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 20px;

    /* 间距尺度 */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;
    --space-16: 64px;
    --space-20: 80px;
    --space-24: 96px;

    /* 容器宽度 */
    --container-w: 1280px;

    /* 过渡 */
    --t-fast: 0.15s ease;
    --t-base: 0.2s ease;
    --t-slow: 0.3s ease;
}

/* ============ Reset ============ */
*, *::before, *::after { box-sizing: border-box; }
html, body {
    margin: 0;
    padding: 0;
    background: var(--bg-white);
    color: var(--ink);
    font-family: var(--font);
    font-size: 14px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}
body[v-cloak] { visibility: hidden; }
[v-cloak] { display: none !important; }

a { color: inherit; text-decoration: none; transition: color var(--t-fast); }
a:hover { color: var(--blue); }

img { max-width: 100%; height: auto; vertical-align: middle; }

button {
    font-family: inherit;
    border: 0;
    background: transparent;
    cursor: pointer;
    color: inherit;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font);
    font-weight: 600;
    letter-spacing: -0.02em;
    margin: 0;
    color: var(--ink);
    line-height: 1.3;
}
h1 { font-size: 36px; }
h2 { font-size: 28px; }
h3 { font-size: 22px; }
h4 { font-size: 18px; }
h5 { font-size: 16px; }
h6 { font-size: 14px; }

p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }

/* 数字 monospace 字符宽度对齐 */
.tabular { font-feature-settings: "tnum"; }

/* ============ Layout ============ */
.container {
    width: 100%;
    max-width: var(--container-w);
    margin: 0 auto;
    padding: 0 24px;
}

.section { padding: 100px 0; }
.section-sm { padding: 60px 0; }
.section-lg { padding: 120px 0; }
.section-soft { background: var(--bg-soft); }
.section-white { background: var(--bg-white); }
.section-dark { background: var(--bg-dark); color: var(--ink-white); }

.section-head {
    text-align: center;
    max-width: 780px;
    margin: 0 auto 64px;
}
.section-head .tag {
    display: inline-block;
    padding: 5px 14px;
    border-radius: 100px;
    background: var(--bg-blue-soft);
    color: var(--blue);
    font-size: 12.5px;
    font-weight: 600;
    letter-spacing: 0.04em;
    margin-bottom: 18px;
    text-transform: uppercase;
}
.section-head h2 {
    font-size: clamp(28px, 3.4vw, 40px);
    line-height: 1.2;
    margin-bottom: 16px;
    letter-spacing: -0.025em;
    font-weight: 700;
}
.section-head p {
    font-size: 16px;
    color: var(--ink-soft);
    line-height: 1.65;
    max-width: 620px;
    margin: 0 auto;
}

/* ============ Buttons ============ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 13.5px;
    font-weight: 500;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all var(--t-base);
    font-family: var(--font);
    white-space: nowrap;
    line-height: 1.4;
    user-select: none;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-ghost {
    color: var(--ink-2);
    border-color: var(--line);
    background: var(--bg-white);
}
.btn-ghost:hover {
    color: var(--blue);
    border-color: var(--blue);
}

.btn-primary {
    color: #fff;
    background: var(--blue);
}
.btn-primary:hover {
    background: var(--blue-hover);
    box-shadow: var(--shadow-blue);
}

.btn-secondary {
    color: var(--ink);
    background: var(--bg-soft);
    border-color: var(--line);
}
.btn-secondary:hover {
    background: var(--bg-blue-soft);
    color: var(--blue);
    border-color: var(--blue);
}

.btn-danger {
    color: #fff;
    background: var(--danger);
}
.btn-danger:hover { background: #E63946; }

.btn-link {
    background: transparent;
    color: var(--blue);
    padding: 6px 8px;
}
.btn-link:hover {
    color: var(--blue-hover);
    background: var(--bg-blue-soft);
}

.btn-sm { padding: 6px 12px; font-size: 12.5px; border-radius: var(--radius-xs); }
.btn-lg { padding: 12px 24px; font-size: 14.5px; border-radius: var(--radius-md); }
.btn-xl { padding: 14px 28px; font-size: 15px; font-weight: 600; border-radius: var(--radius-md); }
.btn-block { display: flex; width: 100%; }

/* ============ Form Controls ============ */
.form-control,
input[type="text"].form-control,
input[type="email"].form-control,
input[type="password"].form-control,
input[type="number"].form-control,
input[type="tel"].form-control,
textarea.form-control,
select.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    font-size: 14px;
    font-family: var(--font);
    background: #fff;
    color: var(--ink);
    transition: all var(--t-base);
    outline: 0;
    line-height: 1.5;
}
.form-control:focus {
    border-color: var(--blue);
    box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
}
.form-control::placeholder { color: var(--ink-dim); }
.form-control:disabled { background: var(--bg-soft); color: var(--ink-dim); cursor: not-allowed; }

textarea.form-control { min-height: 96px; resize: vertical; }

.form-group { margin-bottom: 20px; }
.form-label {
    display: block;
    font-size: 13.5px;
    color: var(--ink-2);
    margin-bottom: 8px;
    font-weight: 500;
}
.form-label .required { color: var(--danger); margin-left: 2px; }
.form-help {
    display: block;
    font-size: 12px;
    color: var(--ink-dim);
    margin-top: 6px;
    line-height: 1.5;
}
.form-error {
    display: block;
    font-size: 12px;
    color: var(--danger);
    margin-top: 6px;
}

/* checkbox / radio 简化样式 */
.form-check {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    user-select: none;
    font-size: 14px;
}
.form-check input[type="checkbox"],
.form-check input[type="radio"] {
    width: 16px; height: 16px;
    accent-color: var(--blue);
    cursor: pointer;
}

/* input-group：搜索框 / 带按钮的输入框 */
.input-group {
    display: flex;
    align-items: stretch;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--t-base);
}
.input-group:focus-within {
    border-color: var(--blue);
    box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
}
.input-group .form-control {
    border: 0;
    box-shadow: none;
    border-radius: 0;
    flex: 1;
}
.input-group .form-control:focus { box-shadow: none; }
.input-group-append { display: flex; align-items: stretch; }
.input-group-append .btn { border-radius: 0; }

/* ============ Cards ============ */
.card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--t-base);
}
.card-hoverable:hover {
    border-color: var(--blue);
    box-shadow: var(--shadow-2);
    transform: translateY(-2px);
}
.card-body { padding: 24px; }
.card-header {
    padding: 18px 24px;
    border-bottom: 1px solid var(--line);
    font-weight: 600;
    color: var(--ink);
}
.card-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--line);
    background: var(--bg-soft);
}

/* ============ Badges ============ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 9px;
    border-radius: 100px;
    font-size: 11.5px;
    font-weight: 600;
    line-height: 1.4;
}
.badge-blue { background: var(--bg-blue-soft); color: var(--blue); }
.badge-success { background: var(--success-soft); color: var(--success); }
.badge-warning { background: var(--warning-soft); color: var(--warning); }
.badge-danger { background: var(--danger-soft); color: var(--danger); }
.badge-gray { background: var(--bg-soft); color: var(--ink-soft); }
.badge-dot::before {
    content: '';
    width: 6px; height: 6px;
    border-radius: 50%;
    background: currentColor;
    display: inline-block;
}

/* ============ Tables ============ */
.table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    overflow: hidden;
    font-size: 13.5px;
}
.table th {
    background: var(--bg-soft);
    color: var(--ink-soft);
    font-weight: 600;
    text-align: left;
    padding: 14px 18px;
    border-bottom: 1px solid var(--line);
    font-size: 12.5px;
    letter-spacing: 0.02em;
}
.table td {
    padding: 14px 18px;
    border-bottom: 1px solid var(--line-soft);
    color: var(--ink-2);
    vertical-align: middle;
}
.table tbody tr:last-child td { border-bottom: 0; }
.table tbody tr:hover { background: var(--bg-soft); }
.table-hoverable tbody tr { cursor: pointer; }

/* ============ Alerts ============ */
.alert {
    padding: 14px 18px;
    border-radius: var(--radius-md);
    font-size: 13.5px;
    border: 1px solid transparent;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}
.alert-info { background: var(--info-soft); border-color: rgba(0, 102, 255, 0.2); color: var(--blue-deep); }
.alert-success { background: var(--success-soft); border-color: rgba(0, 185, 118, 0.2); color: #006B45; }
.alert-warning { background: var(--warning-soft); border-color: rgba(255, 149, 0, 0.2); color: #B36A00; }
.alert-danger { background: var(--danger-soft); border-color: rgba(255, 77, 79, 0.2); color: #C02224; }

/* ============ Pagination ============ */
.pagination {
    display: flex;
    gap: 4px;
    justify-content: center;
    margin: 32px 0;
}
.pagination a, .pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--ink-2);
    background: #fff;
    transition: all var(--t-fast);
}
.pagination a:hover { border-color: var(--blue); color: var(--blue); }
.pagination .active, .pagination .current {
    background: var(--blue);
    color: #fff;
    border-color: var(--blue);
}
.pagination .disabled {
    color: var(--ink-faded);
    cursor: not-allowed;
    pointer-events: none;
}

/* ============ Loader / Spinner ============ */
.spinner {
    display: inline-block;
    width: 18px; height: 18px;
    border: 2px solid var(--bg-blue-soft);
    border-top-color: var(--blue);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}
.spinner-lg { width: 36px; height: 36px; border-width: 3px; }
@keyframes spin { to { transform: rotate(360deg); } }

#preloader {
    position: fixed;
    inset: 0;
    background: #fff;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.4s ease;
}
#preloader.hidden { opacity: 0; pointer-events: none; }
#preloader .loader1 {
    display: flex;
    gap: 6px;
}
#preloader .loader1 span {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--blue);
    animation: bounceLoader 1.2s infinite ease-in-out both;
}
#preloader .loader1 span:nth-child(1) { animation-delay: -0.32s; }
#preloader .loader1 span:nth-child(2) { animation-delay: -0.24s; }
#preloader .loader1 span:nth-child(3) { animation-delay: -0.16s; }
#preloader .loader1 span:nth-child(4) { animation-delay: -0.08s; }
@keyframes bounceLoader {
    0%, 80%, 100% { transform: scale(0.6); opacity: 0.5; }
    40% { transform: scale(1); opacity: 1; }
}

/* ============ Empty State ============ */
.empty {
    text-align: center;
    padding: 60px 20px;
    color: var(--ink-soft);
}
.empty-icon {
    width: 72px; height: 72px;
    margin: 0 auto 16px;
    opacity: 0.5;
}
.empty-text { font-size: 14px; color: var(--ink-dim); }

/* ============ Utility ============ */
.text-blue { color: var(--blue) !important; }
.text-success { color: var(--success) !important; }
.text-danger { color: var(--danger) !important; }
.text-warning { color: var(--warning) !important; }
.text-soft { color: var(--ink-soft) !important; }
.text-dim { color: var(--ink-dim) !important; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.bg-soft { background: var(--bg-soft) !important; }
.bg-blue-soft { background: var(--bg-blue-soft) !important; }

.fw-500 { font-weight: 500; }
.fw-600 { font-weight: 600; }
.fw-700 { font-weight: 700; }

.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: 4px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 12px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.mb-8 { margin-bottom: 32px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }

.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.flex-1 { flex: 1; min-width: 0; }

.hidden { display: none !important; }

/* ============ Responsive ============ */
@media (max-width: 768px) {
    .section { padding: 60px 0; }
    .section-lg { padding: 80px 0; }
    .section-head { margin-bottom: 40px; }
    .container { padding: 0 16px; }
    h1 { font-size: 28px; }
    h2 { font-size: 24px; }
}

/* ============ 滚动条美化 ============ */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--line-strong); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--ink-faded); }