/* ============================
   CRM Pro 2.0 - Professional UI
   ============================ */

:root {
  --primary: #4f46e5; --primary-hover: #4338ca; --primary-light: #eef2ff;
  --success: #10b981; --success-light: #d1fae5;
  --warning: #f59e0b; --warning-light: #fef3c7;
  --danger: #ef4444; --danger-light: #fee2e2;
  --info: #3b82f6; --info-light: #dbeafe;
  --sidebar-bg: #1e293b; --sidebar-hover: #334155; --sidebar-active: #4f46e5;
  --bg: #f1f5f9; --card-bg: #fff; --border: #e2e8f0;
  --text: #1e293b; --text-secondary: #64748b; --text-muted: #94a3b8;
  --radius: 8px; --shadow: 0 1px 3px rgba(0,0,0,.08); --shadow-md: 0 4px 12px rgba(0,0,0,.1);
  --sidebar-w: 10.5rem;
}

* { margin:0; padding:0; box-sizing:border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif; background: var(--bg); color: var(--text); line-height: 1.5; font-size: 13px; }
a { color: var(--primary); text-decoration: none; }
.hidden { display: none !important; }
.text-muted { color:var(--text-muted); font-size:12px; }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }

/* ====== Buttons ====== */
.btn { display:inline-flex; align-items:center; gap:5px; padding:7px 14px; border-radius:6px; border:none; cursor:pointer; font-size:12px; font-weight:500; transition: all .15s; background:var(--card-bg); color:var(--text); border:1px solid var(--border); }
.btn:hover { background:var(--bg); }
.btn-primary { background:var(--primary); color:#fff; border-color:var(--primary); }
.btn-primary:hover { background:var(--primary-hover); }
.btn-success { background:var(--success); color:#fff; border-color:var(--success); }
.btn-danger { background:var(--danger); color:#fff; border-color:var(--danger); }
.btn-warning { background:var(--warning); color:#fff; border-color:var(--warning); }
.btn-outline { background:transparent; border:1px solid var(--border); }
.btn-sm { padding:4px 10px; font-size:11px; }
.btn-icon { width:32px; height:32px; padding:0; justify-content:center; border:1px solid var(--border); background:var(--card-bg); border-radius:6px; cursor:pointer; }
.btn-block { width:100%; justify-content:center; }

/* ====== Forms ====== */
.form-group { margin-bottom:12px; }
.form-group label { display:block; font-size:12px; font-weight:600; color:var(--text-secondary); margin-bottom:4px; }
.form-group input, .form-group select, .form-group textarea { width:100%; padding:7px 10px; border:1.5px solid var(--border); border-radius:6px; font-size:13px; outline:none; transition:border-color .15s; background:var(--card-bg); }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color:var(--primary); }
.form-group textarea { resize:vertical; min-height:56px; }
.form-row { display:flex; gap:12px; }
.form-row .form-group { flex:1; }
.form-section { margin-bottom:14px; }
.form-section-title { font-size:12px; font-weight:700; color:var(--text); margin-bottom:8px; display:flex; align-items:center; gap:6px; border-left:3px solid var(--primary); padding-left:8px; }
.form-actions { display:flex; justify-content:flex-end; gap:8px; border-top:1px solid var(--border); padding-top:14px; margin-top:14px; }

/* ====== Login ====== */
.login-page { display:flex; align-items:center; justify-content:center; min-height:100vh; background: linear-gradient(135deg, #1e293b 0%, #4f46e5 50%, #7c3aed 100%); }
.login-wrapper { width:100%; max-width:400px; padding:20px; }
.login-card { background:#fff; border-radius:16px; padding:36px; box-shadow: 0 20px 60px rgba(0,0,0,.3); }
.login-header { text-align:center; margin-bottom:28px; }
.login-logo { width:56px; height:56px; margin:0 auto 14px; background: linear-gradient(135deg, #4f46e5, #7c3aed); border-radius:14px; display:flex; align-items:center; justify-content:center; color:#fff; font-size:24px; }
.login-header h1 { font-size:22px; font-weight:700; }
.login-header p { color:var(--text-secondary); margin-top:4px; }
.login-form .form-group { margin-bottom:16px; }
.login-form label { display:block; font-size:12px; font-weight:600; color:var(--text-secondary); margin-bottom:5px; }
.login-form label i { width:14px; color:var(--primary); }
.login-form input { width:100%; padding:9px 12px; border-radius:var(--radius); }
.login-error { background:var(--danger-light); color:var(--danger); padding:8px 12px; border-radius:var(--radius); margin-bottom:14px; font-size:12px; }
.login-footer { text-align:center; margin-top:20px; font-size:11px; color:var(--text-muted); }

/* ====== Layout ====== */
.app-layout { display:flex; min-height:100vh; }
.sidebar { width:var(--sidebar-w); background:var(--sidebar-bg); color:#fff; display:flex; flex-direction:column; position:fixed; top:0; left:0; bottom:0; z-index:100; transition: transform .3s; }
.sidebar-brand { padding:16px; display:flex; align-items:center; gap:10px; border-bottom:1px solid rgba(255,255,255,.1); }
.brand-icon { width:36px; height:36px; background:var(--primary); border-radius:8px; display:flex; align-items:center; justify-content:center; font-size:18px; }
.brand-text h2 { font-size:14px; font-weight:700; color:#fff; }
.brand-text span { font-size:10px; color:var(--text-muted); }
.sidebar-nav { flex:1; overflow-y:auto; padding:8px; }
.nav-section { font-size:10px; text-transform:uppercase; color:var(--text-muted); padding:10px 8px 4px; letter-spacing:1px; }
.nav-item { display:flex; align-items:center; gap:8px; width:100%; padding:7px 8px; border:none; background:none; color:#cbd5e1; cursor:pointer; border-radius:6px; font-size:12px; transition: all .15s; text-align:left; }
.nav-item:hover { background:var(--sidebar-hover); color:#fff; }
.nav-item.active { background:var(--sidebar-active); color:#fff; font-weight:600; }
.nav-item i { width:16px; text-align:center; font-size:13px; }
.sidebar-footer { padding:12px; border-top:1px solid rgba(255,255,255,.1); }
.user-info { display:flex; align-items:center; gap:8px; margin-bottom:8px; }
.user-avatar { width:28px; height:28px; background:var(--sidebar-hover); border-radius:50%; display:flex; align-items:center; justify-content:center; font-size:12px; }
.user-meta .uname { font-size:11px; font-weight:600; }
.user-meta .urole { font-size:10px; color:var(--text-muted); }
.btn-logout { width:100%; padding:6px; border:1px solid rgba(255,255,255,.15); background:transparent; color:#fff; border-radius:6px; cursor:pointer; font-size:11px; display:flex; align-items:center; justify-content:center; gap:6px; }

/* ====== Topbar ====== */
.main-content { flex:1; margin-left:var(--sidebar-w); display:flex; flex-direction:column; min-height:100vh; }
.topbar { display:flex; align-items:center; gap:12px; padding:10px 16px; background:var(--card-bg); border-bottom:1px solid var(--border); position:sticky; top:0; z-index:50; }
.topbar h3 { font-size:16px; font-weight:700; flex:1; }
.topbar-actions { display:flex; align-items:center; gap:8px; }
.btn-menu-toggle { display:none; background:none; border:none; font-size:20px; cursor:pointer; color:var(--text); }
.license-badge { font-size:11px; color:var(--success); background:var(--success-light); padding:3px 8px; border-radius:12px; white-space:nowrap; }
.license-badge.hidden { display:none; }
.bell-badge { position:absolute; top:-4px; right:-4px; background:var(--danger); color:#fff; font-size:10px; min-width:16px; height:16px; border-radius:8px; display:flex; align-items:center; justify-content:center; }
.btn-bell { position:relative; }

/* ====== Content ====== */
.content { flex:1; padding:16px; }
.content-section { display:none; }
.content-section.active { display:block; }

/* Cards */
.card { background:var(--card-bg); border-radius:var(--radius); box-shadow:var(--shadow); margin-bottom:16px; overflow:hidden; }
.card-header { display:flex; align-items:center; justify-content:space-between; padding:10px 14px; border-bottom:1px solid var(--border); }
.card-header h4 { font-size:13px; font-weight:600; display:flex; align-items:center; gap:6px; }
.card-body { padding:14px; }
.card-arrow { background:none; border:none; cursor:pointer; color:var(--primary); font-size:12px; }

/* Stats Grid */
.stat-grid { display:grid; grid-template-columns: repeat(6, 1fr); gap:12px; margin-bottom:16px; }
.stat-card { background:var(--card-bg); border-radius:var(--radius); padding:14px; box-shadow:var(--shadow); }
.stat-card .stat-icon { font-size:22px; margin-bottom:6px; }
.stat-card .stat-value { font-size:22px; font-weight:700; }
.stat-card .stat-label { font-size:11px; color:var(--text-secondary); margin-top:2px; }

/* Toolbar */
.toolbar { display:flex; align-items:center; gap:8px; margin-bottom:12px; flex-wrap:wrap; }
.toolbar input[type="text"], .toolbar select { padding:6px 10px; border:1.5px solid var(--border); border-radius:6px; font-size:12px; outline:none; background:var(--card-bg); }
.toolbar input[type="text"]:focus, .toolbar select:focus { border-color:var(--primary); }
.spacer { flex:1; }

/* Tables */
.table-wrap { overflow-x:auto; }
table { width:100%; border-collapse:collapse; font-size:12px; }
th, td { padding:8px 10px; text-align:left; border-bottom:1px solid var(--border); }
th { background:var(--bg); font-weight:600; color:var(--text-secondary); font-size:11px; white-space:nowrap; }
tr:hover td { background:#f8fafc; }
td a { color:var(--primary); cursor:pointer; font-weight:500; }

/* Pagination */
.pagination { display:flex; justify-content:center; gap:4px; padding:12px 0; }
.pagination button { padding:5px 10px; border:1px solid var(--border); background:var(--card-bg); border-radius:4px; cursor:pointer; font-size:11px; }
.pagination button.active { background:var(--primary); color:#fff; border-color:var(--primary); }
.pagination button:disabled { opacity:.5; cursor:not-allowed; }

/* Modal */
.modal-overlay { position:fixed; inset:0; background:rgba(0,0,0,.4); z-index:200; display:flex; align-items:center; justify-content:center; }
.modal { background:var(--card-bg); border-radius:10px; box-shadow:var(--shadow-md); width:90%; max-height:85vh; overflow-y:auto; }
.modal-sm { max-width:440px; }
.modal-md { max-width:600px; }
.modal-lg { max-width:860px; }
.modal-header { display:flex; align-items:center; justify-content:space-between; padding:12px 16px; border-bottom:1px solid var(--border); position:sticky; top:0; background:var(--card-bg); z-index:1; }
.modal-header h3 { font-size:14px; font-weight:700; display:flex; align-items:center; gap:8px; }
.modal-close { background:none; border:none; font-size:22px; cursor:pointer; color:var(--text-muted); width:28px; height:28px; display:flex; align-items:center; justify-content:center; }
.modal-body { padding:16px; }
.modal-footer { display:flex; gap:6px; padding:12px 16px; border-top:1px solid var(--border); justify-content:flex-end; }

/* Tabs */
.tabs { display:flex; gap:0; border-bottom:2px solid var(--border); margin-bottom:16px; }
.tab { padding:8px 16px; border:none; background:none; cursor:pointer; font-size:12px; color:var(--text-secondary); border-bottom:2px solid transparent; margin-bottom:-2px; transition: all .15s; }
.tab.active { color:var(--primary); border-bottom-color:var(--primary); font-weight:600; }
.tab-content.hidden { display:none; }

/* Tags */
.field-tags { display:flex; flex-wrap:wrap; gap:6px; }
.field-tag { display:inline-flex; align-items:center; gap:4px; padding:4px 10px; border-radius:12px; font-size:11px; background:var(--bg); border:1px solid var(--border); }
.field-tag .tag-del { cursor:pointer; color:var(--text-muted); font-size:14px; line-height:1; }
.field-tag .tag-del:hover { color:var(--danger); }

/* Drop zone */
.drop-zone { border:2px dashed var(--border); border-radius:var(--radius); padding:36px; text-align:center; cursor:pointer; transition:border-color .2s; }
.drop-zone:hover { border-color:var(--primary); }
.drop-zone i { font-size:32px; color:var(--primary); margin-bottom:8px; }

/* Labels and badges */
.badge { display:inline-block; padding:2px 7px; border-radius:10px; font-size:10px; font-weight:600; }
.badge-success { background:var(--success-light); color:#065f46; }
.badge-warning { background:var(--warning-light); color:#92400e; }
.badge-danger { background:var(--danger-light); color:#991b1b; }
.badge-info { background:var(--info-light); color:#1e40af; }
.badge-gray { background:var(--bg); color:var(--text-secondary); }

/* Grade colors */
.grade-A { color:#f59e0b; }
.grade-B { color:var(--success); }
.grade-C { color:var(--info); }
.grade-D { color:var(--text-muted); }

/* ====== Kanban Board ====== */
.kanban-board { display:flex; gap:12px; overflow-x:auto; padding:4px 0 12px; min-height:400px; }
.kanban-column { min-width:240px; max-width:280px; background:var(--bg); border-radius:var(--radius); padding:10px; flex-shrink:0; }
.kanban-column-header { display:flex; align-items:center; justify-content:space-between; margin-bottom:8px; }
.kanban-column-header h5 { font-size:12px; font-weight:700; display:flex; align-items:center; gap:6px; }
.kanban-column-count { font-size:11px; color:var(--text-muted); background:var(--card-bg); padding:1px 6px; border-radius:8px; }
.kanban-cards { display:flex; flex-direction:column; gap:6px; min-height:60px; }
.kanban-card { background:var(--card-bg); border-radius:6px; padding:10px; cursor:grab; box-shadow:var(--shadow); border-left:3px solid #6b7280; transition: transform .15s; }
.kanban-card:active { cursor:grabbing; }
.kanban-card:hover { transform: translateY(-1px); box-shadow:var(--shadow-md); }
.kanban-card .kc-title { font-size:12px; font-weight:600; margin-bottom:4px; }
.kanban-card .kc-meta { font-size:10px; color:var(--text-muted); display:flex; gap:8px; }
.kanban-card.dragging { opacity:.5; }
.kanban-column.drag-over { background:#e2e8f0; }

/* ====== Timeline ====== */
.timeline { position:relative; padding-left:24px; }
.timeline::before { content:''; position:absolute; left:8px; top:0; bottom:0; width:2px; background:var(--border); }
.timeline-item { position:relative; padding-bottom:16px; }
.timeline-item::before { content:''; position:absolute; left:-20px; top:4px; width:10px; height:10px; border-radius:50%; background:var(--primary); border:2px solid var(--card-bg); }
.timeline-item .tl-date { font-size:11px; color:var(--text-muted); }
.timeline-item .tl-content { margin-top:2px; }
.timeline-item .tl-tag { font-size:10px; padding:1px 6px; border-radius:4px; margin-right:6px; }
.tl-tag.activity { background:var(--info-light); color:var(--info); }
.tl-tag.quote { background:var(--warning-light); color:#92400e; }
.tl-tag.order { background:var(--success-light); color:#065f46; }
.tl-tag.log { background:var(--bg); color:var(--text-muted); }

/* ====== Notification Panel ====== */
.notification-panel { position:fixed; right:16px; top:50px; width:320px; max-height:400px; overflow-y:auto; background:var(--card-bg); border-radius:var(--radius); box-shadow:var(--shadow-md); z-index:150; border:1px solid var(--border); }
.notif-header { display:flex; align-items:center; justify-content:space-between; padding:10px 14px; border-bottom:1px solid var(--border); font-size:13px; font-weight:600; }
.notif-header h4 { font-size:13px; }
.notif-close { background:none; border:none; font-size:18px; cursor:pointer; }
.notif-body { padding:8px; }
.notif-item { padding:8px; border-radius:6px; cursor:pointer; font-size:12px; }
.notif-item:hover { background:var(--bg); }

/* ====== System Info Panel ====== */
.system-info-panel { position:fixed; right:16px; top:50px; width:320px; max-height:420px; overflow-y:auto; background:var(--card-bg); border-radius:var(--radius); box-shadow:var(--shadow-md); z-index:150; border:1px solid var(--border); }
.sysinfo-header { display:flex; align-items:center; justify-content:space-between; padding:10px 14px; border-bottom:1px solid var(--border); font-size:13px; font-weight:600; }
.sysinfo-close { background:none; border:none; font-size:18px; cursor:pointer; }
.sysinfo-body { padding:12px; }
.sysinfo-body table { font-size:11px; }
.sysinfo-body td { padding:4px 6px; }
.sysinfo-body td:first-child { color:var(--text-muted); white-space:nowrap; }

/* ====== Charts ====== */
.chart-wrap { position:relative; width:100%; }
.chart-donut-lg { height:280px; max-width:360px; margin:0 auto; }
.dash-donuts-row { display:grid; grid-template-columns: repeat(3, 1fr); gap:12px; margin-bottom:16px; }
.dash-lines-row { display:grid; grid-template-columns: repeat(2, 1fr); gap:12px; margin-bottom:16px; }
.dash-info-row { display:grid; grid-template-columns: repeat(3, 1fr); gap:12px; margin-bottom:16px; }
.grid-2 { display:grid; grid-template-columns: repeat(2, 1fr); gap:12px; }

/* ====== Search Dropdown ====== */
.search-dropdown { position:absolute; top:100%; left:0; right:0; max-height:200px; overflow-y:auto; background:var(--card-bg); border:1px solid var(--border); border-radius:6px; z-index:10; box-shadow:var(--shadow-md); }
.search-dropdown .sd-item { padding:8px 10px; cursor:pointer; font-size:12px; border-bottom:1px solid var(--border); }
.search-dropdown .sd-item:hover { background:var(--primary-light); }
.search-dropdown .sd-item:last-child { border-bottom:none; }

/* ====== Calendar View ====== */
.calendar-grid { display:grid; grid-template-columns: repeat(7, 1fr); gap:4px; }
.calendar-header { text-align:center; font-size:11px; font-weight:600; color:var(--text-secondary); padding:4px; }
.calendar-day { border-radius:6px; padding:4px; min-height:60px; background:var(--card-bg); border:1px solid var(--border); font-size:11px; cursor:pointer; transition: all .15s; }
.calendar-day:hover { border-color:var(--primary); }
.calendar-day.today { border-color:var(--primary); border-width:2px; background:var(--primary-light); }
.calendar-day .day-num { font-weight:600; margin-bottom:2px; }
.calendar-day .day-task { font-size:10px; padding:1px 4px; border-radius:3px; margin-bottom:1px; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.calendar-day .day-task.high { background:var(--danger-light); color:var(--danger); }
.calendar-day .day-task.normal { background:var(--info-light); color:var(--info); }
.calendar-day .day-task.low { background:var(--bg); color:var(--text-muted); }

/* ====== Quote Version Compare ====== */
.version-compare { display:grid; grid-template-columns: 1fr 1fr; gap:12px; }
.version-compare .vc-side { border:1px solid var(--border); border-radius:var(--radius); padding:10px; }
.version-compare .vc-side h5 { font-size:12px; margin-bottom:6px; }
.version-compare .diff-changed { background:#fef3c7; }

/* ====== 商友圈 ====== */
.biz-disclaimer { font-size:11px; color:var(--warning); background:var(--warning-light); padding:8px 12px; border-radius:6px; margin-bottom:12px; display:flex; align-items:flex-start; gap:6px; }
.biz-grid { display:grid; grid-template-columns: repeat(4, 1fr); gap:12px; margin-bottom:12px; }
.biz-card { background:var(--card-bg); border-radius:var(--radius); padding:14px; box-shadow:var(--shadow); transition:transform .15s; }
.biz-card:hover { transform:translateY(-2px); box-shadow:var(--shadow-md); }
.biz-card .biz-company { font-size:13px; font-weight:700; margin-bottom:6px; }
.biz-card .biz-meta { font-size:11px; color:var(--text-secondary); margin-bottom:3px; }
.biz-card .biz-actions { margin-top:8px; display:flex; gap:6px; }

/* ====== Loading ====== */
.loading-overlay { position:fixed; inset:0; background:var(--bg); display:flex; align-items:center; justify-content:center; z-index:10000; }
.loading-spinner { text-align:center; }
.loading-spinner i { font-size:40px; color:var(--primary); }
.loading-spinner p { margin-top:12px; color:var(--text-secondary); }

/* ====== Toast ====== */
#toast-container { position:fixed; top:16px; right:16px; z-index:9999; display:flex; flex-direction:column; gap:6px; }
.toast { padding:10px 16px; border-radius:6px; color:#fff; font-size:12px; animation:slideIn .3s; max-width:340px; }
.toast.success { background:var(--success); }
.toast.error { background:var(--danger); }
.toast.warning { background:var(--warning); }
@keyframes slideIn { from { transform:translateX(100%); opacity:0; } to { transform:translateX(0); opacity:1; } }

/* ====== Contacts ====== */
.contact-header { display:flex; align-items:center; gap:6px; margin-bottom:8px; }
.contact-header h5 { font-size:12px; font-weight:600; }
.contact-section { border:1px solid var(--border); border-radius:var(--radius); padding:12px; margin-bottom:8px; }
.contact-section.hidden { display:none; }

/* ====== Sidebar overlay ====== */
.sidebar-overlay { position:fixed; inset:0; background:rgba(0,0,0,.3); z-index:99; }
.sidebar-overlay.hidden { display:none; }

/* ====== Responsive ====== */
@media (max-width: 768px) {
  :root { --sidebar-w: 0px; }
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); width:220px; }
  .main-content { margin-left:0; }
  .btn-menu-toggle { display:block; }
  .stat-grid { grid-template-columns: repeat(3, 1fr); }
  .dash-donuts-row, .dash-lines-row, .dash-info-row, .grid-2 { grid-template-columns: 1fr; }
  .biz-grid { grid-template-columns: repeat(2, 1fr); }
  .kanban-board { flex-direction:column; }
  .kanban-column { max-width:100%; min-width:auto; }
  .modal-lg, .modal-md { max-width:96%; }
  .form-row { flex-direction:column; gap:8px; }
  .toolbar { flex-wrap:wrap; }
  .topbar h3 { font-size:14px; }
  .version-compare { grid-template-columns: 1fr; }
  .calendar-grid { grid-template-columns: repeat(7, 1fr); gap:2px; }
  .calendar-day { min-height:44px; padding:2px; font-size:10px; }
}
@media (max-width: 480px) {
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .biz-grid { grid-template-columns: 1fr; }
}