/* ============================================
   尚新云系统 - 统一基础样式 v1.0
   适用于所有前端页面
   ============================================ */

/* ---- CSS变量 ---- */
:root {
    --primary: #4361ee;
    --primary-dark: #3a56d4;
    --primary-light: #eef1ff;
    --secondary: #2c3e50;
    --success: #48bb78;
    --warning: #ed8936;
    --danger: #f56565;
    --info: #4299e1;
    --light-bg: #f5f7fa;
    --white: #ffffff;
    --border: #e2e8f0;
    --text: #333333;
    --text-light: #718096;
    --text-muted: #a0aec0;
    --radius: 8px;
    --radius-lg: 12px;
    --shadow: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-lg: 0 4px 16px rgba(0,0,0,0.12);
    --transition: all 0.2s ease;
    --navbar-height: 56px;
}

/* ---- 基础重置 ---- */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC',
                 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    background: var(--light-bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }

/* ---- 页面容器 ---- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* ---- 顶部导航栏 ---- */
.top-navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--navbar-height);
    background: var(--white);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    z-index: 1000;
    box-shadow: var(--shadow);
}

.top-navbar .nav-brand {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.top-navbar .nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
}

.top-navbar .nav-links a,
.top-navbar .nav-links button {
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 14px;
    color: var(--text);
    background: transparent;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.top-navbar .nav-links a:hover,
.top-navbar .nav-links button:hover {
    background: var(--primary-light);
    color: var(--primary);
}

.top-navbar .nav-links .btn-primary {
    background: var(--primary);
    color: var(--white);
}
.top-navbar .nav-links .btn-primary:hover {
    background: var(--primary-dark);
    color: var(--white);
}

.top-navbar .user-area {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
}

.top-navbar .user-area .user-name { color: var(--text); font-weight: 500; }
.top-navbar .user-area .logout-link { color: var(--text-light); font-size: 13px; }

/* 导航栏下方留白 */
body.has-navbar { padding-top: calc(var(--navbar-height) + 20px); }

/* ---- 按钮 ---- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    border: none;
    border-radius: var(--radius);
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    gap: 6px;
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary { background: var(--primary); color: var(--white); }
.btn-primary:hover { background: var(--primary-dark); }

.btn-secondary { background: var(--secondary); color: var(--white); }
.btn-secondary:hover { opacity: 0.9; }

.btn-success { background: var(--success); color: var(--white); }
.btn-success:hover { opacity: 0.9; }

.btn-warning { background: var(--warning); color: var(--white); }
.btn-warning:hover { opacity: 0.9; }

.btn-danger { background: var(--danger); color: var(--white); }
.btn-danger:hover { opacity: 0.9; }

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
}
.btn-outline:hover { background: var(--light-bg); }

.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-lg { padding: 12px 24px; font-size: 16px; }
.btn-block { width: 100%; }

/* ---- 表格 ---- */
.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.data-table thead {
    background: var(--primary-light);
}

.data-table th {
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    font-size: 13px;
    color: var(--secondary);
    border-bottom: 2px solid var(--border);
    white-space: nowrap;
}

.data-table td {
    padding: 10px 16px;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}

.data-table tbody tr:hover { background: var(--light-bg); }
.data-table tbody tr:last-child td { border-bottom: none; }

/* ---- 表单 ---- */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    font-size: 14px;
    color: var(--secondary);
}

.form-control {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
    color: var(--text);
    background: var(--white);
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(67,97,238,0.15);
}

select.form-control { appearance: auto; }

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

.form-row {
    display: flex;
    gap: 16px;
}

.form-row .form-group { flex: 1; }

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

/* ---- 卡片 ---- */
.card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    font-weight: 600;
    font-size: 16px;
    color: var(--secondary);
}

.card-body { padding: 20px; }

/* ---- 提示 ---- */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    font-size: 14px;
}

.alert-success { background: #f0fff4; color: #276749; border: 1px solid #c6f6d5; }
.alert-error { background: #fff5f5; color: #9b2c2c; border: 1px solid #fed7d7; }
.alert-warning { background: #fffaf0; color: #9c4221; border: 1px solid #feebc8; }
.alert-info { background: #ebf8ff; color: #2a4365; border: 1px solid #bee3f8; }

/* ---- 徽章 ---- */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 12px;
    font-weight: 500;
}

.badge-success { background: #c6f6d5; color: #276749; }
.badge-warning { background: #feebc8; color: #9c4221; }
.badge-danger { background: #fed7d7; color: #9b2c2c; }
.badge-info { background: #bee3f8; color: #2a4365; }

/* ---- 加载/分页 ---- */
.text-center { text-align: center; }
.text-right { text-align: right; }

.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 20px;
}

/* ---- 响应式 ---- */
@media (max-width: 768px) {
    .container { padding: 12px; }
    .top-navbar {
        padding: 0 12px;
        flex-wrap: wrap;
    }
    .top-navbar .nav-links { gap: 2px; }
    .top-navbar .nav-links a,
    .top-navbar .nav-links button {
        padding: 6px 10px;
        font-size: 13px;
    }
    .top-navbar .user-area { font-size: 12px; }
    .form-row { flex-direction: column; gap: 0; }
    .data-table { font-size: 13px; }
    .data-table th, .data-table td { padding: 8px 10px; }
    .btn { padding: 6px 12px; font-size: 13px; }
}