/* Trang quản trị VietCraft */
:root {
  --red: #C8102E; --red-d: #A50E22; --red-l: #FDECEE; --gold: #FFCD00;
  --ink: #141A23; --ink-2: #3A4454; --muted: #6B7280; --line: #E5E7EB; --bg: #F4F5F7; --card: #fff;
  --side: #10161E; --side-2: #1A222D; --side-fg: #C3CBD6;
  --ok: #15803D; --ok-l: #DCFCE7; --warn: #B45309; --warn-l: #FEF3C7; --bad: #B91C1C; --bad-l: #FEE2E2; --info: #1D4ED8; --info-l: #DBEAFE;
  --r: 10px; --font: system-ui, -apple-system, 'Segoe UI', Roboto, 'Be Vietnam Pro', Arial, sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; font: 14px/1.5 var(--font); color: var(--ink); background: var(--bg); }
a { color: var(--red); text-decoration: none; } a:hover { text-decoration: underline; }
h1 { font-size: 22px; margin: 0; } h2 { font-size: 16px; margin: 0 0 12px; } h3 { font-size: 14px; margin: 0 0 8px; }
.boot { padding: 60px; text-align: center; color: var(--muted); }
.muted { color: var(--muted); } .small { font-size: 12px; } .mono { font-family: ui-monospace, Menlo, Consolas, monospace; }
.nowrap { white-space: nowrap; } .right { text-align: right; } .grow { flex: 1; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

/* Bố cục */
.shell { display: grid; grid-template-columns: 236px 1fr; min-height: 100vh; }
.side { background: var(--side); color: var(--side-fg); display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh; overflow: auto; }
.side .brand { display: flex; gap: 10px; align-items: center; padding: 16px 18px; color: #fff; }
.side .brand b { font-size: 16px; } .side .brand small { display: block; color: #8B95A3; font-size: 11px; }
.side nav { padding: 6px 10px 20px; }
.side .grp { font-size: 11px; text-transform: uppercase; letter-spacing: .06em; color: #6B7684; padding: 16px 10px 6px; }
.side a { display: flex; align-items: center; gap: 10px; color: var(--side-fg); padding: 8px 10px; border-radius: 8px; font-weight: 500; text-decoration: none; }
.side a:hover { background: var(--side-2); color: #fff; }
.side a.on { background: var(--red); color: #fff; }
.side a svg { width: 18px; height: 18px; flex: none; opacity: .9; }
.side .badge { margin-left: auto; background: var(--gold); color: var(--ink); border-radius: 99px; font-size: 11px; font-weight: 700; padding: 0 7px; min-width: 20px; text-align: center; }
.side .foot { margin-top: auto; padding: 14px 18px; font-size: 11px; color: #6B7684; }
.main { min-width: 0; }
.top { background: #fff; border-bottom: 1px solid var(--line); height: 58px; display: flex; align-items: center; gap: 12px; padding: 0 22px; position: sticky; top: 0; z-index: 20; }
.top .menu-btn { display: none; }
.top .who { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.avatar { width: 32px; height: 32px; border-radius: 50%; background: var(--red); color: #fff; display: grid; place-items: center; font-weight: 700; }
.content { padding: 22px; max-width: 1400px; }
.page-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.page-head .row { margin-left: auto; }

/* Thẻ, bảng */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 16px 18px; margin-bottom: 16px; }
.card.flush { padding: 0; overflow: hidden; }
.grid { display: grid; gap: 16px; } .g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); } .g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; margin-bottom: 16px; }
.kpi { background: #fff; border: 1px solid var(--line); border-radius: var(--r); padding: 14px 16px; }
.kpi .v { font-size: 26px; font-weight: 800; letter-spacing: -.02em; } .kpi .l { color: var(--muted); font-size: 13px; }
.kpi .s { font-size: 12px; color: var(--muted); margin-top: 2px; }
.tbl-wrap { overflow: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 12px; color: var(--muted); font-weight: 600; background: #FAFAFB; position: sticky; top: 0; white-space: nowrap; }
tr.click { cursor: pointer; } tr.click:hover td { background: #FBFBFC; }
td .sub { display: block; color: var(--muted); font-size: 12px; }
.empty { padding: 40px; text-align: center; color: var(--muted); }
.pill { display: inline-block; padding: 1px 9px; border-radius: 99px; font-size: 12px; font-weight: 600; white-space: nowrap; background: #F1F2F4; color: var(--ink-2); }
.pill.ok { background: var(--ok-l); color: var(--ok); } .pill.warn { background: var(--warn-l); color: var(--warn); }
.pill.bad { background: var(--bad-l); color: var(--bad); } .pill.info { background: var(--info-l); color: var(--info); }
.appdot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; margin-right: 6px; vertical-align: 1px; }

/* Biểu mẫu */
.btn { display: inline-flex; align-items: center; gap: 6px; background: var(--red); color: #fff; border: 1px solid var(--red); border-radius: 8px;
  padding: 7px 14px; font: 600 13.5px var(--font); cursor: pointer; white-space: nowrap; text-decoration: none !important; }
.btn:hover { background: var(--red-d); } .btn:disabled { opacity: .55; cursor: default; }
.btn.ghost { background: #fff; color: var(--ink); border-color: var(--line); } .btn.ghost:hover { border-color: #C9CDD3; background: #FAFAFB; }
.btn.danger { background: #fff; color: var(--bad); border-color: #F3C4C4; } .btn.danger:hover { background: var(--bad-l); }
.btn.sm { padding: 4px 10px; font-size: 12.5px; }
input, select, textarea { font: 14px var(--font); padding: 7px 10px; border: 1px solid #D5D8DD; border-radius: 8px; background: #fff; color: var(--ink); min-width: 0; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--red); box-shadow: 0 0 0 3px var(--red-l); }
textarea { width: 100%; resize: vertical; }
.f { display: block; margin-bottom: 12px; } .f > span { display: block; font-size: 12.5px; font-weight: 600; color: var(--ink-2); margin-bottom: 4px; }
.f input:not([type=checkbox]):not([type=radio]), .f select, .f textarea { width: 100%; }
.f .hint { font-size: 12px; color: var(--muted); margin-top: 3px; }
.fgrid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 14px; }
.chk { display: flex; gap: 8px; align-items: center; margin-bottom: 8px; cursor: pointer; }
.search { min-width: 240px; }
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin-bottom: 14px; flex-wrap: wrap; }
.tabs button { background: none; border: 0; border-bottom: 2px solid transparent; padding: 8px 12px; font: 600 13.5px var(--font); color: var(--muted); cursor: pointer; }
.tabs button.on { color: var(--red); border-color: var(--red); }

/* Hộp thoại, thông báo */
.modal-bg { position: fixed; inset: 0; background: rgba(16, 22, 30, .45); z-index: 100; display: flex; align-items: flex-start; justify-content: center; padding: 6vh 16px; overflow: auto; }
.modal { background: #fff; border-radius: 14px; width: 100%; max-width: 620px; box-shadow: 0 30px 80px rgba(0,0,0,.3); }
.modal.wide { max-width: 900px; }
.modal header { display: flex; align-items: center; padding: 16px 20px; border-bottom: 1px solid var(--line); }
.modal header h2 { margin: 0; } .modal header .x { margin-left: auto; background: none; border: 0; font-size: 24px; cursor: pointer; color: var(--muted); }
.modal .body { padding: 18px 20px; } .modal footer { padding: 12px 20px; border-top: 1px solid var(--line); display: flex; gap: 8px; justify-content: flex-end; }
#toasts { position: fixed; right: 18px; bottom: 18px; z-index: 200; display: grid; gap: 8px; }
.toast { background: var(--ink); color: #fff; padding: 10px 16px; border-radius: 10px; box-shadow: 0 10px 30px rgba(0,0,0,.25); max-width: 380px; }
.toast.err { background: var(--bad); }
dl.kv { display: grid; grid-template-columns: 150px 1fr; gap: 6px 14px; margin: 0; } dl.kv dt { color: var(--muted); } dl.kv dd { margin: 0; word-break: break-word; }
pre.stack { background: #0F141B; color: #D6DEE8; padding: 12px; border-radius: 8px; overflow: auto; font-size: 12px; max-height: 320px; }
.keybox { font: 600 15px ui-monospace, Menlo, Consolas, monospace; background: #FFF8DB; border: 1px dashed #E0AE00; border-radius: 8px; padding: 8px 12px; margin: 4px 0; display: flex; justify-content: space-between; gap: 10px; }

/* Đăng nhập */
.login { min-height: 100vh; display: grid; place-items: center; background: radial-gradient(800px 400px at 80% 0%, rgba(255,205,0,.18), transparent 60%), radial-gradient(800px 500px at 0% 100%, rgba(200,16,46,.12), transparent 60%), var(--bg); padding: 20px; }
.login .card { width: 100%; max-width: 380px; padding: 28px; box-shadow: 0 20px 50px rgba(0,0,0,.08); }
.login .brand { display: flex; gap: 10px; align-items: center; margin-bottom: 18px; } .login .brand b { font-size: 20px; }
.err-msg { color: var(--bad); min-height: 1.4em; margin: 6px 0; }

/* Biểu đồ cột */
.bars { display: flex; align-items: flex-end; gap: 3px; height: 140px; padding-top: 6px; }
.bars .b { flex: 1; display: flex; flex-direction: column; justify-content: flex-end; gap: 1px; min-width: 4px; }
.bars .b i { display: block; border-radius: 2px 2px 0 0; }
.legend { display: flex; gap: 14px; font-size: 12px; color: var(--muted); margin-top: 6px; flex-wrap: wrap; }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 5px; vertical-align: -1px; }

/* Chat */
.chat { display: grid; grid-template-columns: 330px 1fr; height: calc(100vh - 58px - 44px - 52px); min-height: 460px; }
.chat .list { border-right: 1px solid var(--line); overflow: auto; }
.chat .item { padding: 11px 14px; border-bottom: 1px solid var(--line); cursor: pointer; }
.chat .item:hover { background: #FAFAFB; } .chat .item.on { background: var(--red-l); }
.chat .item b { display: flex; gap: 6px; align-items: center; } .chat .item .t { margin-left: auto; font-weight: 400; color: var(--muted); font-size: 11px; }
.chat .item .p { color: var(--muted); font-size: 12.5px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.chat .unread { background: var(--red); color: #fff; border-radius: 99px; font-size: 11px; padding: 0 6px; }
.chat .pane { display: flex; flex-direction: column; min-width: 0; }
.chat .pane-head { padding: 10px 14px; border-bottom: 1px solid var(--line); display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.chat .msgs { flex: 1; overflow: auto; padding: 16px; background: #FAFAFB; }
.chat .m { max-width: 72%; margin: 0 0 10px; padding: 8px 12px; border-radius: 12px; white-space: pre-wrap; word-wrap: break-word; }
.chat .m.visitor { background: #fff; border: 1px solid var(--line); }
.chat .m.agent { margin-left: auto; background: var(--red); color: #fff; }
.chat .m.system { margin: 6px auto; text-align: center; color: var(--muted); font-size: 12px; background: none; }
.chat .m .meta { display: block; font-size: 11px; opacity: .75; margin-top: 2px; }
.chat .compose { display: flex; gap: 8px; padding: 10px; border-top: 1px solid var(--line); }
.chat .compose textarea { height: 46px; }

@media (max-width: 1000px) {
  .shell { grid-template-columns: 1fr; }
  .side { position: fixed; left: -260px; width: 240px; z-index: 50; transition: left .2s; }
  .side.open { left: 0; }
  .top .menu-btn { display: inline-flex; }
  .g2, .g3, .fgrid { grid-template-columns: 1fr; }
  .chat { grid-template-columns: 1fr; height: auto; } .chat .list { max-height: 260px; }
  .content { padding: 14px; }
}