/* ============================================================
   SOHO产品查询系统 - 全局样式
   ============================================================ */

:root {
    --primary: #1a73e8;
    --primary-hover: #1557b0;
    --primary-light: #e8f0fe;
    --success: #0d904f;
    --warning: #f29900;
    --danger: #d93025;
    --bg: #f8f9fa;
    --card-bg: #ffffff;
    --border: #dadce0;
    --text: #202124;
    --text-secondary: #5f6368;
    --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.10);
    --radius: 10px;
    --radius-sm: 6px;
}

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

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

/* ============================================================
   导航栏
   ============================================================ */

.navbar {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    padding: 0 24px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow);
}

.navbar-brand {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.navbar-brand svg { width: 28px; height: 28px; }

.navbar-nav { display: flex; align-items: center; gap: 16px; }

.navbar-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    transition: all 0.2s;
}

.navbar-nav a:hover { background: var(--primary-light); color: var(--primary); }
.navbar-nav a.active { background: var(--primary-light); color: var(--primary); font-weight: 500; }

/* ============================================================
   页面容器
   ============================================================ */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
}

.page-header {
    margin-bottom: 28px;
    text-align: center;
}

.page-header h1 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text);
    letter-spacing: 0.5px;
}

.page-header p {
    color: var(--text-secondary);
    margin-top: 8px;
    font-size: 15px;
}

/* ============================================================
   搜索框
   ============================================================ */

.search-box {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: 0 2px 8px rgba(0,0,0,0.08), 0 4px 24px rgba(0,0,0,0.05);
    padding: 40px 36px;
    margin-bottom: 24px;
}

.search-box-inner {
    display: flex;
    gap: 12px;
    max-width: 800px;
    margin: 0 auto;
}

.search-input {
    flex: 1;
    height: 60px;
    padding: 0 20px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-size: 18px;
    outline: none;
    transition: all 0.25s;
    box-shadow: inset 0 1px 3px rgba(0,0,0,0.04);
}

.search-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(26,115,232,0.1);
}

.search-input::placeholder {
    color: #999;
    font-size: 16px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    height: 40px;
    padding: 0 20px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-success { background: var(--success); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
}
.btn-outline:hover { background: var(--bg); border-color: var(--primary); color: var(--primary); }
.btn-sm { height: 32px; padding: 0 12px; font-size: 13px; }
.btn-lg { height: 48px; padding: 0 28px; font-size: 16px; }

.btn-search {
    height: 60px;
    padding: 0 36px;
    background: var(--primary);
    color: #fff;
    font-size: 18px;
    font-weight: 600;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.25s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 2px 6px rgba(26,115,232,0.3);
    white-space: nowrap;
}
.btn-search:hover {
    background: var(--primary-hover);
    box-shadow: 0 4px 12px rgba(26,115,232,0.4);
    transform: translateY(-1px);
}

/* ============================================================
   查询提示
   ============================================================ */

.search-hint {
    display: flex;
    gap: 8px;
    margin-top: 16px;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
}

.search-hint > span:first-child {
    font-size: 13px;
    color: var(--text-secondary);
    background: none;
    cursor: default;
    padding: 4px 4px;
}

.search-hint > span:first-child:hover {
    background: none;
    color: var(--text-secondary);
}

.search-hint span {
    display: inline-block;
    padding: 5px 14px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 20px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
    font-weight: 500;
}

.search-hint span:hover { background: var(--primary); color: #fff; }

/* ============================================================
   结果表格
   ============================================================ */

.result-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    margin-bottom: 24px;
}

.result-header {
    padding: 16px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.result-header h2 {
    font-size: 16px;
    font-weight: 600;
}

.result-count {
    font-size: 13px;
    color: var(--text-secondary);
    background: var(--bg);
    padding: 4px 10px;
    border-radius: 20px;
}

.table-wrapper { overflow-x: auto; }

table {
    width: 100%;
    border-collapse: collapse;
}

thead {
    background: var(--bg);
    border-bottom: 2px solid var(--border);
}

th {
    padding: 12px 16px;
    text-align: left;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    white-space: nowrap;
}

td {
    padding: 12px 16px;
    font-size: 14px;
    border-bottom: 1px solid var(--border);
}

tr:hover td { background: var(--primary-light); }

.no-ean { color: var(--text-secondary); font-style: italic; }

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

.badge-switch { background: #e8f5e9; color: #2e7d32; }
.badge-wlan { background: #e3f2fd; color: #1565c0; }
.badge-router { background: #fff3e0; color: #e65100; }

/* ============================================================
   空状态 / 加载
   ============================================================ */

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.empty-state svg { width: 64px; height: 64px; margin-bottom: 16px; opacity: 0.4; }
.empty-state p { font-size: 16px; }

.loading {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
    font-size: 14px;
}

.spinner {
    display: inline-block;
    width: 24px;
    height: 24px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================================
   登录页
   ============================================================ */

.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    padding: 40px;
    width: 400px;
    max-width: 90vw;
}

.login-card h1 {
    font-size: 22px;
    text-align: center;
    margin-bottom: 8px;
}

.login-card .subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 24px;
}

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

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

.form-group input, .form-group select {
    width: 100%;
    height: 42px;
    padding: 0 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s;
}

.form-group input:focus, .form-group select:focus { border-color: var(--primary); }

.form-error {
    background: #fce8e6;
    color: var(--danger);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    margin-bottom: 16px;
}

.btn-block {
    width: 100%;
    height: 42px;
}

/* ============================================================
   后台仪表盘
   ============================================================ */

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

.stat-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px;
}

.stat-card .stat-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary);
}

.stat-card .stat-label {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* ============================================================
   后台工具栏
   ============================================================ */

.toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.toolbar-left { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.toolbar-right { display: flex; gap: 8px; align-items: center; }

/* ============================================================
   Modal
   ============================================================ */

.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal-overlay.active { display: flex; }

.modal {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    padding: 24px;
    width: 520px;
    max-width: 90vw;
    max-height: 90vh;
    overflow-y: auto;
}

.modal h2 {
    font-size: 18px;
    margin-bottom: 20px;
}

.modal-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
    margin-top: 20px;
}

/* ============================================================
   分页
   ============================================================ */

.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 16px;
    border-top: 1px solid var(--border);
}

.pagination a, .pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    font-size: 14px;
}

.pagination a {
    color: var(--primary);
    text-decoration: none;
    border: 1px solid var(--border);
}

.pagination a:hover { background: var(--primary-light); }
.pagination span.active { background: var(--primary); color: #fff; }
.pagination span.disabled { color: var(--border); }

/* ============================================================
   响应式
   ============================================================ */

@media (max-width: 768px) {
    .container { padding: 12px; }
    .page-header h1 { font-size: 22px; }
    .search-box { padding: 24px 16px; }
    .search-box-inner { flex-direction: column; }
    .search-input, .btn-search { height: 52px; }
    .search-input { font-size: 16px; }
    .btn-search { font-size: 16px; padding: 0 24px; }
    .toolbar { flex-direction: column; align-items: stretch; }
    th, td { padding: 8px 10px; font-size: 13px; }
}

/* ============================================================
   Toast 消息
   ============================================================ */

.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 12px 20px;
    border-radius: var(--radius-sm);
    color: #fff;
    font-size: 14px;
    z-index: 2000;
    animation: slideIn 0.3s ease;
    box-shadow: var(--shadow-md);
}

.toast-success { background: var(--success); }
.toast-error { background: var(--danger); }
.toast-info { background: var(--primary); }

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.fade-out {
    animation: fadeOut 0.3s ease forwards;
}

@keyframes fadeOut {
    to { opacity: 0; transform: translateX(100%); }
}