/* cskh.css — Chăm Sóc Khách Hàng / AI Call Center. Plain CSS (không build step), brand Quik. */
:root {
  --navy: #1e3a8a;
  --navy-900: #0f1c44;
  --navy-700: #1e3a8a;
  --orange: #ff6b2b;
  --orange-soft: rgba(255, 107, 43, .12);
  --bg: #f4f6fb;
  --surface: #ffffff;
  --surface-2: #f1f5f9;
  --text: #0f1424;
  --text-soft: #475569;
  --text-muted: #94a3b8;
  --border: #e6eaf2;
  --border-strong: #d3dae8;
  --shadow-sm: 0 1px 3px rgba(15, 28, 68, .06);
  --shadow: 0 8px 24px -10px rgba(15, 28, 68, .18);
  --radius: 14px;
  --radius-sm: 9px;
  --ok: #10b981; --warn: #f59e0b; --danger: #ef4444; --info: #0ea5e9; --purple: #8b5cf6;
}

/* Tránh nháy nội dung trước khi gate quyết định */
html.auth-pending body { visibility: hidden; }

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font-family: 'Inter', -apple-system, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg); color: var(--text); font-size: 14px; line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
.material-symbols-outlined { font-size: 20px; line-height: 1; vertical-align: middle; }
.hidden { display: none !important; }

/* ═════ Layout ═════ */
.cs-app { display: flex; min-height: 100vh; }

/* Sidebar */
.cs-side {
  width: 72px; flex-shrink: 0; background: var(--navy-900); color: #c7d2e8;
  display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh;
  transition: width .18s ease; overflow: hidden; z-index: 30;
}
.cs-side:hover, .cs-side:focus-within { width: 232px; }
.cs-brand { display: flex; align-items: center; gap: 10px; padding: 16px 14px; text-decoration: none; color: #fff; white-space: nowrap; }
.cs-brand img { width: 36px; height: 36px; border-radius: 9px; flex-shrink: 0; background: #fff; padding: 3px; object-fit: contain; }
.cs-brand-text { display: flex; flex-direction: column; line-height: 1.15; opacity: 0; transition: opacity .18s; }
.cs-side:hover .cs-brand-text, .cs-side:focus-within .cs-brand-text { opacity: 1; }
.cs-brand-text strong { font-size: 15px; font-weight: 800; }
.cs-brand-text span { font-size: 11px; color: #8aa0cf; }

.cs-nav { display: flex; flex-direction: column; gap: 3px; padding: 8px; margin-top: 4px; }
.cs-nav button {
  display: flex; align-items: center; gap: 12px; width: 100%; border: 0; background: transparent;
  color: #c7d2e8; padding: 11px 12px; border-radius: 10px; cursor: pointer; font: inherit;
  font-weight: 600; white-space: nowrap; position: relative;
}
.cs-nav button .material-symbols-outlined { flex-shrink: 0; }
.cs-nav-label { opacity: 0; transition: opacity .18s; }
.cs-side:hover .cs-nav-label, .cs-side:focus-within .cs-nav-label { opacity: 1; }
.cs-nav button:hover { background: rgba(255, 255, 255, .07); color: #fff; }
.cs-nav button.is-active { background: linear-gradient(90deg, var(--orange), #ff8e5c); color: #fff; }
.cs-nav-badge {
  margin-left: auto; background: var(--orange); color: #fff; font-size: 11px; font-weight: 800;
  min-width: 20px; height: 20px; border-radius: 10px; display: inline-flex; align-items: center; justify-content: center; padding: 0 6px;
}
.cs-nav button.is-active .cs-nav-badge { background: rgba(255, 255, 255, .25); }
.cs-side-foot { margin-top: auto; padding: 10px; }
.cs-newbtn {
  display: flex; align-items: center; gap: 10px; width: 100%; border: 1px dashed rgba(255, 255, 255, .25);
  background: transparent; color: #fff; padding: 10px 12px; border-radius: 10px; cursor: pointer; font: inherit; font-weight: 700; white-space: nowrap;
}
.cs-newbtn:hover { background: rgba(255, 255, 255, .08); border-color: var(--orange); }

/* Main */
.cs-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.cs-top {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px 28px; background: rgba(255, 255, 255, .9); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 20;
}
.cs-top-title { display: flex; align-items: center; gap: 12px; }
.cs-top-title h1 { margin: 0; font-size: 19px; font-weight: 800; color: var(--navy-900); }
.cs-top-actions { display: flex; align-items: center; gap: 14px; }

.cs-pill { display: inline-flex; align-items: center; gap: 5px; font-size: 11px; font-weight: 700; padding: 4px 9px; border-radius: 999px; }
.cs-pill .material-symbols-outlined { font-size: 15px; }
.cs-pill--ai { background: var(--orange-soft); color: var(--orange); }
.cs-pill--ai.off { background: var(--surface-2); color: var(--text-muted); }

/* User chip */
.cs-user { position: relative; }
.cs-user-btn { display: flex; align-items: center; gap: 9px; border: 1px solid var(--border); background: var(--surface); border-radius: 999px; padding: 5px 10px 5px 5px; cursor: pointer; font: inherit; }
.cs-user-avatar { width: 30px; height: 30px; border-radius: 50%; background: var(--navy); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 13px; }
.cs-user-meta { display: flex; flex-direction: column; line-height: 1.15; text-align: left; }
.cs-user-meta strong { font-size: 13px; }
.cs-user-meta small { font-size: 11px; color: var(--text-muted); }
.cs-user-menu { position: absolute; right: 0; top: calc(100% + 8px); background: var(--surface); border: 1px solid var(--border); border-radius: 12px; box-shadow: var(--shadow); min-width: 210px; padding: 6px; z-index: 40; }
.cs-user-menu a, .cs-user-menu button { display: flex; align-items: center; gap: 10px; width: 100%; padding: 9px 11px; border: 0; background: transparent; border-radius: 8px; cursor: pointer; font: inherit; color: var(--text); text-decoration: none; }
.cs-user-menu a:hover, .cs-user-menu button:hover { background: var(--surface-2); }

/* User chip ở ĐÁY SIDEBAR (rail): avatar luôn hiện, tên+email hiện khi rail mở; menu bật LÊN */
.cs-user--rail { position: relative; }
.cs-user--rail .cs-user-btn { width: 100%; border: 0; background: transparent; border-radius: 10px; padding: 8px 10px; gap: 10px; }
.cs-user--rail .cs-user-btn:hover { background: rgba(255, 255, 255, .08); }
.cs-user--rail .cs-user-avatar { flex-shrink: 0; }
.cs-user--rail .cs-user-meta { color: #c7d2e8; min-width: 0; }
.cs-user--rail .cs-user-meta strong { color: #fff; font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 150px; }
.cs-user--rail .cs-user-meta small { color: #8aa0cf; font-size: 11px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 150px; }
.cs-user--rail .cs-user-menu { top: auto; bottom: calc(100% + 8px); left: 8px; right: 8px; min-width: 0; }

/* Views */
.cs-view { padding: 22px 28px 60px; }

/* KPI */
.cs-kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 14px; margin-bottom: 18px; }
.cs-kpi { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; box-shadow: var(--shadow-sm); display: flex; gap: 14px; align-items: center; }
.cs-kpi-ic { width: 46px; height: 46px; border-radius: 12px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.cs-kpi-ic .material-symbols-outlined { font-size: 24px; }
.cs-kpi-body { min-width: 0; }
.cs-kpi-num { font-size: 26px; font-weight: 800; color: var(--navy-900); line-height: 1.1; }
.cs-kpi-lbl { font-size: 12px; color: var(--text-soft); font-weight: 600; }
.cs-kpi--navy .cs-kpi-ic { background: rgba(30, 58, 138, .1); color: var(--navy); }
.cs-kpi--orange .cs-kpi-ic { background: var(--orange-soft); color: var(--orange); }
.cs-kpi--danger .cs-kpi-ic { background: rgba(239, 68, 68, .1); color: var(--danger); }
.cs-kpi--ok .cs-kpi-ic { background: rgba(16, 185, 129, .1); color: var(--ok); }
.cs-kpi--info .cs-kpi-ic { background: rgba(14, 165, 233, .1); color: var(--info); }

/* Cards */
.cs-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-sm); margin-bottom: 18px; overflow: hidden; }
.cs-card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 15px 18px; border-bottom: 1px solid var(--border); }
.cs-card-head h3 { margin: 0; font-size: 15px; font-weight: 800; color: var(--navy-900); }
.cs-grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 900px) { .cs-grid2 { grid-template-columns: 1fr; } }
.cs-link { border: 0; background: transparent; color: var(--orange); font-weight: 700; cursor: pointer; font: inherit; }

/* Bars */
.cs-bars { padding: 16px 18px; display: flex; flex-direction: column; gap: 11px; }
.cs-bar-row { display: grid; grid-template-columns: 140px 1fr 40px; align-items: center; gap: 10px; }
.cs-bar-lbl { font-size: 13px; color: var(--text-soft); font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cs-bar-track { height: 9px; background: var(--surface-2); border-radius: 999px; overflow: hidden; }
.cs-bar-fill { height: 100%; border-radius: 999px; background: var(--navy); }
.cs-bar-val { font-size: 13px; font-weight: 800; color: var(--navy-900); text-align: right; }

/* Toolbar */
.cs-toolbar { display: flex; align-items: center; gap: 10px; padding: 13px 16px; border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.cs-toolbar-spacer { flex: 1; }
.cs-search { display: flex; align-items: center; gap: 8px; background: var(--surface-2); border: 1px solid var(--border); border-radius: 10px; padding: 8px 12px; min-width: 280px; flex: 1; max-width: 460px; }
.cs-search .material-symbols-outlined { color: var(--text-muted); }
.cs-search input { border: 0; background: transparent; outline: none; font: inherit; width: 100%; color: var(--text); }
.cs-select { border: 1px solid var(--border); background: var(--surface); border-radius: 9px; padding: 8px 10px; font: inherit; color: var(--text); cursor: pointer; }

/* Buttons */
.cs-btn { display: inline-flex; align-items: center; gap: 7px; border: 1px solid var(--border-strong); background: var(--surface); color: var(--text); border-radius: 9px; padding: 8px 14px; font: inherit; font-weight: 700; cursor: pointer; transition: background .12s, border-color .12s; white-space: nowrap; }
.cs-btn:hover { background: var(--surface-2); }
.cs-btn .material-symbols-outlined { font-size: 18px; }
.cs-btn--primary { background: var(--orange); border-color: var(--orange); color: #fff; }
.cs-btn--primary:hover { background: #ec5a1d; }
.cs-btn--navy { background: var(--navy); border-color: var(--navy); color: #fff; }
.cs-btn--navy:hover { background: #16306f; }
.cs-btn--ghost { border-color: transparent; background: transparent; }
.cs-btn--danger { color: var(--danger); border-color: rgba(239, 68, 68, .3); }
.cs-btn--danger:hover { background: rgba(239, 68, 68, .08); }
.cs-btn--sm { padding: 5px 9px; font-size: 12px; }
.cs-btn:disabled { opacity: .55; cursor: not-allowed; }

/* Tables */
.cs-table-wrap { overflow-x: auto; }
.cs-table { width: 100%; border-collapse: collapse; }
.cs-table th { text-align: left; font-size: 11px; text-transform: uppercase; letter-spacing: .04em; color: var(--text-muted); font-weight: 700; padding: 11px 16px; border-bottom: 1px solid var(--border); background: var(--surface-2); white-space: nowrap; }
.cs-table td { padding: 12px 16px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.cs-table tbody tr:last-child td { border-bottom: 0; }
.cs-table--click tbody tr { cursor: pointer; }
.cs-table--click tbody tr:hover { background: var(--surface-2); }
.cs-empty { text-align: center; color: var(--text-muted); padding: 28px 16px !important; }
.cs-code { font-weight: 800; color: var(--navy); font-variant-numeric: tabular-nums; }
.cs-sub { font-size: 12px; color: var(--text-muted); }
.cs-strong { font-weight: 600; }

/* Badges (status / priority) */
.cs-badge { display: inline-flex; align-items: center; gap: 5px; font-size: 12px; font-weight: 700; padding: 3px 9px; border-radius: 999px; white-space: nowrap; }
.cs-badge::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.st-new { background: rgba(14, 165, 233, .12); color: #0284c7; }
.st-open { background: rgba(245, 158, 11, .14); color: #b45309; }
.st-pending { background: rgba(139, 92, 246, .12); color: #7c3aed; }
.st-resolved { background: rgba(16, 185, 129, .12); color: #047857; }
.st-closed { background: rgba(100, 116, 139, .14); color: #475569; }
.pr-low { background: var(--surface-2); color: #64748b; }
.pr-normal { background: rgba(30, 58, 138, .1); color: var(--navy); }
.pr-high { background: rgba(245, 158, 11, .16); color: #b45309; }
.pr-urgent { background: rgba(239, 68, 68, .14); color: #dc2626; }

/* Knowledge hint */
.cs-kb-hint { margin: 0; padding: 10px 16px; font-size: 12.5px; color: var(--text-soft); background: var(--orange-soft); border-bottom: 1px solid var(--border); }

/* Pager */
.cs-pager { display: flex; align-items: center; justify-content: center; gap: 8px; padding: 14px; }
.cs-pager button { border: 1px solid var(--border-strong); background: var(--surface); border-radius: 8px; padding: 6px 11px; cursor: pointer; font: inherit; font-weight: 700; }
.cs-pager button:hover:not(:disabled) { background: var(--surface-2); }
.cs-pager button:disabled { opacity: .4; cursor: default; }
.cs-pager-info { font-size: 13px; color: var(--text-soft); font-weight: 600; }

/* Kanban */
.cs-board-note { background: rgba(245, 158, 11, .1); border: 1px solid rgba(245, 158, 11, .3); color: #b45309; border-radius: 10px; padding: 10px 14px; margin-bottom: 14px; font-size: 13px; font-weight: 600; }
.cs-board { display: grid; grid-template-columns: repeat(5, minmax(240px, 1fr)); gap: 14px; overflow-x: auto; padding-bottom: 12px; }
.cs-col { background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius); display: flex; flex-direction: column; min-height: 200px; }
.cs-col-head { display: flex; align-items: center; justify-content: space-between; padding: 12px 14px; border-bottom: 1px solid var(--border); font-weight: 800; color: var(--navy-900); position: sticky; top: 0; }
.cs-col-count { background: var(--surface); border: 1px solid var(--border); border-radius: 999px; padding: 1px 9px; font-size: 12px; }
.cs-col-body { padding: 10px; display: flex; flex-direction: column; gap: 9px; overflow-y: auto; max-height: calc(100vh - 230px); }
.cs-tcard { background: var(--surface); border: 1px solid var(--border); border-left: 3px solid var(--navy); border-radius: 10px; padding: 11px 12px; cursor: pointer; box-shadow: var(--shadow-sm); }
.cs-tcard:hover { border-color: var(--border-strong); transform: translateY(-1px); }
.cs-tcard.p-urgent { border-left-color: var(--danger); }
.cs-tcard.p-high { border-left-color: var(--warn); }
.cs-tcard-code { font-size: 11px; font-weight: 800; color: var(--navy); }
.cs-tcard-title { font-size: 13px; font-weight: 600; margin: 3px 0 6px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.cs-tcard-foot { display: flex; align-items: center; justify-content: space-between; gap: 6px; font-size: 11px; color: var(--text-muted); }

/* ═════ Modal ═════ */
.cs-modal { position: fixed; inset: 0; background: rgba(15, 28, 68, .45); display: flex; align-items: center; justify-content: center; padding: 24px; z-index: 60; }
.cs-modal-box { background: var(--surface); border-radius: 18px; box-shadow: var(--shadow); width: 100%; max-width: 480px; max-height: 90vh; display: flex; flex-direction: column; overflow: hidden; }
.cs-modal-box--lg { max-width: 660px; }
.cs-modal-head { display: flex; align-items: center; justify-content: space-between; padding: 18px 22px; border-bottom: 1px solid var(--border); }
.cs-modal-head h3 { margin: 0; font-size: 17px; font-weight: 800; color: var(--navy-900); }
.cs-modal-x { border: 0; background: transparent; cursor: pointer; color: var(--text-muted); display: flex; padding: 4px; border-radius: 8px; }
.cs-modal-x:hover { background: var(--surface-2); color: var(--text); }
.cs-modal-body { padding: 20px 22px; overflow-y: auto; }

/* Forms */
.cs-form { display: flex; flex-direction: column; gap: 14px; }
.cs-form label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; font-weight: 700; color: var(--text-soft); }
.cs-form label.req::after { content: ' *'; color: var(--danger); }
.cs-form input, .cs-form select, .cs-form textarea { border: 1px solid var(--border-strong); border-radius: 9px; padding: 9px 11px; font: inherit; color: var(--text); background: var(--surface); width: 100%; }
.cs-form input:focus, .cs-form select:focus, .cs-form textarea:focus { outline: none; border-color: var(--orange); box-shadow: 0 0 0 3px var(--orange-soft); }
.cs-form textarea { resize: vertical; min-height: 76px; }
.cs-form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 560px) { .cs-form-row { grid-template-columns: 1fr; } }
.cs-form-err { color: var(--danger); font-size: 13px; font-weight: 600; min-height: 4px; }
.cs-form-acts { display: flex; justify-content: flex-end; gap: 10px; margin-top: 4px; }
.cs-section-label { font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: .05em; color: var(--text-muted); margin: 4px 0 -4px; }

/* ═════ Drawer (chi tiết ticket) ═════ */
.cs-drawer { position: fixed; inset: 0; z-index: 60; }
.cs-drawer-backdrop { position: absolute; inset: 0; background: rgba(15, 28, 68, .4); }
.cs-drawer-panel { position: absolute; top: 0; right: 0; height: 100%; width: 560px; max-width: 94vw; background: var(--surface); box-shadow: var(--shadow); display: flex; flex-direction: column; animation: slideIn .2s ease; }
@keyframes slideIn { from { transform: translateX(20px); opacity: .6; } to { transform: none; opacity: 1; } }
.cs-drawer-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; padding: 18px 22px; border-bottom: 1px solid var(--border); }
.cs-drawer-code { font-size: 12px; font-weight: 800; color: var(--orange); }
.cs-drawer-head h3 { margin: 4px 0 0; font-size: 17px; font-weight: 800; color: var(--navy-900); }
.cs-drawer-body { padding: 18px 22px; overflow-y: auto; flex: 1; }

.cs-meta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 18px; margin-bottom: 16px; }
.cs-meta { display: flex; flex-direction: column; gap: 3px; }
.cs-meta-k { font-size: 11px; text-transform: uppercase; letter-spacing: .04em; color: var(--text-muted); font-weight: 700; }
.cs-meta-v { font-size: 14px; color: var(--text); font-weight: 600; }
.cs-detail-desc { background: var(--surface-2); border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; font-size: 14px; white-space: pre-wrap; margin-bottom: 16px; }

.cs-actions-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; align-items: center; }
.cs-ai-box { border: 1px dashed var(--orange); background: var(--orange-soft); border-radius: 12px; padding: 12px 14px; margin-bottom: 16px; }
.cs-ai-box h4 { margin: 0 0 8px; font-size: 13px; color: var(--orange); display: flex; align-items: center; gap: 6px; }
.cs-ai-out { background: var(--surface); border: 1px solid var(--border); border-radius: 9px; padding: 11px 13px; font-size: 14px; white-space: pre-wrap; margin-top: 10px; }

.cs-timeline { display: flex; flex-direction: column; gap: 0; margin-top: 6px; }
.cs-tl-item { display: grid; grid-template-columns: 26px 1fr; gap: 10px; padding-bottom: 14px; position: relative; }
.cs-tl-item:not(:last-child)::before { content: ''; position: absolute; left: 12px; top: 24px; bottom: 0; width: 2px; background: var(--border); }
.cs-tl-dot { width: 26px; height: 26px; border-radius: 50%; background: var(--surface-2); display: flex; align-items: center; justify-content: center; color: var(--text-muted); }
.cs-tl-dot .material-symbols-outlined { font-size: 15px; }
.cs-tl-dot.t-comment { background: rgba(30, 58, 138, .1); color: var(--navy); }
.cs-tl-dot.t-status { background: rgba(245, 158, 11, .14); color: #b45309; }
.cs-tl-dot.t-created { background: rgba(16, 185, 129, .12); color: var(--ok); }
.cs-tl-dot.t-assign { background: rgba(139, 92, 246, .12); color: var(--purple); }
.cs-tl-body { font-size: 13px; }
.cs-tl-text { color: var(--text); }
.cs-tl-meta { font-size: 11px; color: var(--text-muted); margin-top: 2px; }
.cs-comment-box { display: flex; gap: 8px; margin-top: 12px; }
.cs-comment-box textarea { flex: 1; border: 1px solid var(--border-strong); border-radius: 9px; padding: 9px 11px; font: inherit; resize: vertical; min-height: 42px; }

/* Toast */
.cs-toast { position: fixed; bottom: 22px; left: 50%; transform: translateX(-50%); background: var(--navy-900); color: #fff; padding: 11px 18px; border-radius: 11px; font-weight: 600; box-shadow: var(--shadow); z-index: 80; }
.cs-toast.err { background: var(--danger); }

/* Denied gate */
.cs-denied { position: fixed; inset: 0; background: var(--bg); display: flex; align-items: center; justify-content: center; padding: 24px; z-index: 100; }
.cs-denied-box { background: var(--surface); border: 1px solid var(--border); border-radius: 18px; box-shadow: var(--shadow); padding: 36px; text-align: center; max-width: 420px; }
.cs-denied-box .material-symbols-outlined { font-size: 46px; color: var(--danger); background: rgba(239, 68, 68, .1); width: 76px; height: 76px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; margin-bottom: 8px; }
.cs-denied-box h1 { font-size: 21px; color: var(--navy-900); margin: 8px 0; }
.cs-denied-box p { color: var(--text-soft); margin: 0 0 18px; }
.cs-denied-box .cs-btn { justify-content: center; }