/* ============================================
   合同管理系统 样式表
   ============================================ */

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

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #dbeafe;
    --success: #16a34a;
    --warning: #d97706;
    --danger: #dc2626;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --sidebar-bg: #1e293b;
    --sidebar-hover: #334155;
    --sidebar-active: #2563eb;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0,0,0,.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,.07);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    font-size: 14px;
    color: var(--gray-800);
    background: var(--gray-100);
    line-height: 1.6;
}

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

/* ========== 登录页 ========== */
.login-page {
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}
.login-container { width: 100%; max-width: 420px; padding: 20px; }
.login-box {
    background: #fff;
    border-radius: 16px;
    padding: 40px 36px;
    box-shadow: 0 20px 60px rgba(0,0,0,.2);
}
.login-header { text-align: center; margin-bottom: 30px; }
.login-logo {
    width: 64px; height: 64px;
    background: var(--primary);
    color: #fff;
    border-radius: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}
.login-header h1 { font-size: 24px; color: var(--gray-900); }
.login-header p { font-size: 13px; color: var(--gray-400); margin-top: 4px; }
.login-tips {
    margin-top: 24px;
    padding: 16px;
    background: var(--gray-50);
    border-radius: var(--radius);
    font-size: 12px;
    color: var(--gray-500);
    line-height: 1.8;
}

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

.sidebar {
    width: 220px;
    background: var(--sidebar-bg);
    color: #cbd5e1;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0; bottom: 0;
    z-index: 100;
    transition: width .2s;
}
.sidebar.collapsed { width: 64px; }
.sidebar.collapsed .sidebar-brand span,
.sidebar.collapsed .nav-item span { display: none; }
.sidebar-brand {
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 18px;
    font-weight: 600;
    color: #fff;
    border-bottom: 1px solid rgba(255,255,255,.08);
    white-space: nowrap;
}
.sidebar-nav { padding: 12px 0; flex: 1; }
.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: #94a3b8;
    transition: all .15s;
    white-space: nowrap;
}
.nav-item:hover { background: var(--sidebar-hover); color: #fff; }
.nav-item.active { background: var(--sidebar-active); color: #fff; }

.main { flex: 1; margin-left: 220px; transition: margin-left .2s; }
.sidebar.collapsed ~ .main { margin-left: 64px; }

.topbar {
    height: 60px;
    background: #fff;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 50;
}
.sidebar-toggle {
    background: none; border: none; cursor: pointer;
    color: var(--gray-600); padding: 8px; border-radius: 6px;
    display: flex;
}
.sidebar-toggle:hover { background: var(--gray-100); }
.topbar-title { font-size: 18px; font-weight: 600; margin-left: 12px; }
.topbar-right { margin-left: auto; display: flex; align-items: center; }
.user-menu { position: relative; cursor: pointer; }
.user-info { display: flex; align-items: center; gap: 8px; padding: 6px 12px; border-radius: 8px; }
.user-info:hover { background: var(--gray-100); }
.user-avatar {
    width: 32px; height: 32px;
    background: var(--primary);
    color: #fff;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
}
.user-name { font-weight: 500; }
.user-role {
    font-size: 11px;
    color: #fff;
    padding: 2px 8px;
    border-radius: 10px;
}
.user-dropdown {
    display: none;
    position: absolute;
    right: 0; top: 100%;
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    min-width: 120px;
    padding-top: 6px;
    z-index: 1000;
}
.user-menu:hover .user-dropdown,
.user-menu.open .user-dropdown { display: block; }
.user-dropdown a {
    display: block;
    padding: 10px 16px;
    color: var(--gray-700);
}
.user-dropdown a:hover { background: var(--gray-100); }

.content { padding: 24px; }

/* ========== 卡片 ========== */
.card {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}
.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.card-header h3 { font-size: 16px; font-weight: 600; }
.card-body { padding: 20px; }

/* ========== 统计卡片 ========== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.stat-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 16px;
}
.stat-icon {
    width: 52px; height: 52px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    flex-shrink: 0;
}
.stat-icon.blue { background: var(--primary); }
.stat-icon.green { background: var(--success); }
.stat-icon.orange { background: var(--warning); }
.stat-icon.red { background: var(--danger); }
.stat-info h4 { font-size: 24px; font-weight: 700; line-height: 1.2; }
.stat-info p { color: var(--gray-500); font-size: 13px; margin-top: 4px; }

/* ========== 表格 ========== */
.table-wrapper { overflow-x: auto; }
table.data-table {
    width: 100%;
    border-collapse: collapse;
}
.data-table th, .data-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}
.data-table th {
    background: var(--gray-50);
    font-weight: 600;
    color: var(--gray-600);
    font-size: 13px;
    white-space: nowrap;
}
.data-table tbody tr:hover { background: var(--gray-50); }
.data-table .actions { white-space: nowrap; }
.data-table .actions a { margin-right: 8px; font-size: 13px; }

/* ========== 徽章/标签 ========== */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
    color: #fff;
}
.badge-gray { background: var(--gray-500); }
.badge-blue { background: var(--primary); }
.badge-green { background: var(--success); }
.badge-orange { background: var(--warning); }
.badge-red { background: var(--danger); }

/* ========== 按钮 ========== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: 1px solid transparent;
    border-radius: 6px;
    font-size: 14px;
    cursor: pointer;
    transition: all .15s;
    text-decoration: none;
    line-height: 1.4;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #15803d; color: #fff; }
.btn-warning { background: var(--warning); color: #fff; }
.btn-warning:hover { background: #b45309; color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #b91c1c; color: #fff; }
.btn-default { background: #fff; border-color: var(--gray-300); color: var(--gray-700); }
.btn-default:hover { background: var(--gray-50); }
.btn-sm { padding: 4px 10px; font-size: 13px; }
.btn-block { width: 100%; justify-content: center; padding: 12px; font-size: 16px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* ========== 表单 ========== */
.form-group { margin-bottom: 18px; }
.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: var(--gray-700);
}
.form-group label .required { color: var(--danger); }
.form-control {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--gray-300);
    border-radius: 6px;
    font-size: 14px;
    transition: border-color .15s;
    font-family: inherit;
}
.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}
textarea.form-control { min-height: 100px; resize: vertical; }
select.form-control { cursor: pointer; }
.form-row { display: flex; gap: 16px; }
.form-row .form-group { flex: 1; }
.form-actions {
    padding-top: 16px;
    border-top: 1px solid var(--gray-200);
    display: flex;
    gap: 10px;
}

/* ========== 提示 ========== */
.alert {
    padding: 12px 16px;
    border-radius: 6px;
    margin-bottom: 16px;
    font-size: 14px;
}
.alert-error { background: #fef2f2; color: var(--danger); border: 1px solid #fecaca; }
.alert-success { background: #f0fdf4; color: var(--success); border: 1px solid #bbf7d0; }
.alert-warning { background: #fffbeb; color: var(--warning); border: 1px solid #fde68a; }
.alert-info { background: #eff6ff; color: var(--primary); border: 1px solid #bfdbfe; }

/* ========== Toast 弹出提示 ========== */
#toastContainer {
    position: fixed;
    top: 24px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 99999;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}
.toast {
    padding: 14px 24px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
    pointer-events: auto;
    animation: toastSlideIn 0.3s ease;
    max-width: 480px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.toast.toast-success { background: #16a34a; color: #fff; }
.toast.toast-error { background: #dc2626; color: #fff; }
.toast.toast-warning { background: #d97706; color: #fff; }
.toast.toast-info { background: #2563eb; color: #fff; }
.toast.toast-hiding { animation: toastSlideOut 0.3s ease forwards; }
@keyframes toastSlideIn {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes toastSlideOut {
    from { opacity: 1; transform: translateY(0); }
    to { opacity: 0; transform: translateY(-20px); }
}

/* ========== 筛选栏 ========== */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: flex-end;
    margin-bottom: 20px;
}
.filter-bar .form-group { margin-bottom: 0; min-width: 160px; }
.filter-bar .form-group label { font-size: 12px; color: var(--gray-500); }

/* ========== 分页 ========== */
.pagination {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 16px;
    justify-content: flex-end;
}
.pagination a, .pagination span {
    padding: 6px 12px;
    border: 1px solid var(--gray-300);
    border-radius: 6px;
    font-size: 13px;
    color: var(--gray-700);
}
.pagination a:hover { background: var(--gray-50); }
.pagination .current { background: var(--primary); color: #fff; border-color: var(--primary); }
.pagination .page-info { border: none; color: var(--gray-500); margin-right: 12px; }

/* ========== 合同详情 ========== */
.detail-grid {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 20px;
}
.detail-main {
    min-width: 0;
    overflow-x: auto;
}
.detail-main .contract-content {
    padding: 40px;
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    line-height: 2;
}
.detail-main .contract-content h2 { text-align: center; margin-bottom: 20px; }
.detail-main .contract-content h3 { margin: 20px 0 10px; }
.detail-main .contract-content table { margin: 10px 0; }
/* 开票资料左右布局 */
.contract-content .tax-info, #editor .tax-info { display: flex; gap: 20px; }
.contract-content .tax-box, #editor .tax-box { flex: 1; border: 1px solid #333; padding: 12px 16px; }
.contract-content .tax-box p, #editor .tax-box p { margin: 4px 0; }
/* 签章区域左右布局 */
.contract-content .sign-area, #editor .sign-area { display: flex; gap: 40px; margin-top: 40px; }
.contract-content .sign-box, #editor .sign-box { flex: 1; }
.contract-content .sign-box p, #editor .sign-box p { margin: 8px 0; }
/* 编辑器/预览区 打印预览样式（所见即所得） */
#editor, .contract-content {
    font-family: "SimSun", "宋体", "Microsoft YaHei", serif;
    font-size: 9pt;
    line-height: 1.4;
    color: #000;
}
#editor h1, .contract-content h1,
#editor h2, .contract-content h2 {
    text-align: center;
    font-size: 15pt;
    font-weight: bold;
    margin: 0 0 6px 0;
}
#editor h3, .contract-content h3 {
    font-size: 11pt;
    margin: 6px 0 2px 0;
}
#editor p, .contract-content p { margin: 1px 0; }
#editor table, .contract-content table {
    border-collapse: collapse;
    width: 100%;
    margin: 3px 0;
    font-size: 8.5pt;
}
#editor td, #editor th,
.contract-content td, .contract-content th {
    border: 1px solid #000;
    padding: 2px 5px;
    line-height: 1.2;
}
#editor ul, #editor ol,
.contract-content ul, .contract-content ol {
    margin: 1px 0;
    padding-left: 18px;
}
#editor li, .contract-content li { margin: 0; }
#editor .tax-info, .contract-content .tax-info { gap: 10px; }
#editor .tax-box, .contract-content .tax-box { padding: 4px 8px; }
#editor .tax-box p, .contract-content .tax-box p { margin: 0; }
#editor .sign-area, .contract-content .sign-area { gap: 40px; margin-top: 14px; }
#editor .sign-box p, .contract-content .sign-box p { margin: 3px 0; }
.detail-sidebar .card-body { padding: 16px; }
.info-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--gray-100);
    font-size: 13px;
}
.info-row:last-child { border-bottom: none; }
.info-row .label { color: var(--gray-500); }
.info-row .value { font-weight: 500; text-align: right; }

/* 时间线 */
.timeline { padding: 0; }
.timeline-item {
    position: relative;
    padding-left: 24px;
    padding-bottom: 20px;
    border-left: 2px solid var(--gray-200);
}
.timeline-item:last-child { border-left-color: transparent; padding-bottom: 0; }
.timeline-item::before {
    content: '';
    position: absolute;
    left: -7px; top: 4px;
    width: 12px; height: 12px;
    border-radius: 50%;
    background: var(--primary);
    border: 2px solid #fff;
}
.timeline-time { font-size: 12px; color: var(--gray-400); }
.timeline-title { font-weight: 500; margin: 2px 0; }
.timeline-desc { font-size: 13px; color: var(--gray-500); }

/* ========== 模板卡片 ========== */
.template-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 16px;
}
.template-card {
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 20px;
    transition: box-shadow .15s;
}
.template-card:hover { box-shadow: var(--shadow-md); }
.template-card h4 { margin-bottom: 8px; }
.template-card p { color: var(--gray-500); font-size: 13px; margin-bottom: 12px; }
.template-card .card-actions { display: flex; gap: 8px; }

/* ========== 模态框 ========== */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}
.modal-overlay.show { display: flex; }
.modal {
    background: #fff;
    border-radius: 12px;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
}
.modal-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.modal-header h3 { font-size: 16px; }
.modal-close {
    background: none; border: none; font-size: 22px;
    cursor: pointer; color: var(--gray-400); line-height: 1;
}
.modal-body { padding: 20px; }
.modal-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--gray-200);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* ========== Tabs ========== */
.tabs {
    display: flex;
    border-bottom: 2px solid var(--gray-200);
    margin-bottom: 20px;
}
.tab {
    padding: 10px 20px;
    cursor: pointer;
    color: var(--gray-500);
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    font-weight: 500;
}
.tab:hover { color: var(--primary); }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); }

/* ========== 合同编辑器 ========== */
.editor-toolbar {
    display: flex;
    gap: 4px;
    padding: 8px;
    border: 1px solid var(--gray-300);
    border-bottom: none;
    border-radius: 6px 6px 0 0;
    background: var(--gray-50);
    flex-wrap: wrap;
}
.editor-toolbar button {
    padding: 4px 10px;
    border: 1px solid var(--gray-300);
    background: #fff;
    border-radius: 4px;
    cursor: pointer;
    font-size: 13px;
}
.editor-toolbar button:hover { background: var(--gray-100); }
.editor-content {
    min-height: 400px;
    padding: 20px;
    border: 1px solid var(--gray-300);
    border-radius: 0 0 6px 6px;
    background: #fff;
    line-height: 1.8;
}
.editor-content:focus { outline: none; border-color: var(--primary); }

/* 编辑器工具栏分隔符 */
.toolbar-sep {
    color: var(--gray-300);
    margin: 0 4px;
}

/* ========== 商品明细表格 ========== */
.items-table .form-control {
    padding: 4px 8px;
    font-size: 13px;
    border: 1px solid transparent;
    background: transparent;
    width: 100%;
}
.items-table .form-control:focus {
    border-color: var(--primary);
    background: #fff;
    outline: none;
}
.items-table td {
    padding: 6px 8px;
    vertical-align: middle;
}
.items-table tfoot td {
    background: var(--gray-50);
    font-size: 15px;
}
.items-table .btn-sm {
    padding: 2px 8px;
    font-size: 16px;
    line-height: 1.2;
}

/* ========== 空状态 ========== */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--gray-400);
}
.empty-state svg { margin-bottom: 16px; }
.empty-state p { font-size: 15px; }

/* ========== 响应式 ========== */
@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.show { transform: translateX(0); }
    .main { margin-left: 0; }
    .detail-grid { grid-template-columns: 1fr; }
    .form-row { flex-direction: column; gap: 0; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .filter-bar { flex-direction: column; align-items: stretch; }
}