/* NEXVA CRM v2 - design system (2026-10-15) */
:root{
  --bg:#f6f7f9;--surface:#ffffff;--surface-2:#f1f3f6;--fg:#111827;--muted:#6b7280;--border:#e5e7eb;
  --brand:#1d5fd6;--brand-fg:#fff;--brand-soft:#e8f0fd;--accent:#f26b1d;
  --good:#16a34a;--warn:#d97706;--bad:#dc2626;--info:#0284c7;
  --radius:10px;--shadow:0 1px 2px rgba(16,24,40,.06),0 1px 3px rgba(16,24,40,.08);
  --side-w:232px;--top-h:56px;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  color-scheme:light;
}
html[data-theme="dark"]{
  --bg:#0d1117;--surface:#161b22;--surface-2:#1f2630;--fg:#e6edf3;--muted:#8b949e;--border:#2a313c;
  --brand:#4c8dff;--brand-soft:#1a2b4a;--accent:#ff8a3d;
  --good:#3fb950;--warn:#e3a008;--bad:#f85149;--info:#38bdf8;
  --shadow:0 1px 2px rgba(0,0,0,.4);color-scheme:dark;
}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--fg);font-size:14px;line-height:1.45}
a{color:var(--brand);text-decoration:none}
button{font:inherit;color:inherit}
.num,.kpi-v,td.r{font-variant-numeric:tabular-nums}

/* layout */
.app{display:grid;grid-template-columns:var(--side-w) 1fr;min-height:100vh}
.side{background:var(--surface);border-right:1px solid var(--border);position:sticky;top:0;height:100vh;overflow-y:auto;padding:12px 10px 24px}
.brand{display:flex;align-items:center;gap:8px;padding:6px 8px 14px;font-weight:700;font-size:16px;letter-spacing:.02em}
.brand i{width:26px;height:26px;border-radius:7px;background:var(--brand);display:grid;place-items:center;color:#fff;font-style:normal;font-size:13px}
.brand b{color:var(--accent)}
.nav-grp{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);margin:14px 10px 4px}
.nav-it{display:flex;align-items:center;gap:8px;padding:7px 10px;border-radius:7px;color:var(--fg);cursor:pointer;font-size:13.5px}
.nav-it:hover{background:var(--surface-2)}
.nav-it.on{background:var(--brand-soft);color:var(--brand);font-weight:600}
.nav-it.sub{padding-left:28px;font-size:13px}
.nav-it .ext{margin-left:auto;font-size:11px;color:var(--muted)}
.nav-grp.tog{display:flex;align-items:center;cursor:pointer;user-select:none;padding:4px 0}
.nav-grp.tog:hover{color:var(--fg)}
.nav-grp.tog::after{content:"\25BE";margin-left:auto;margin-right:2px;font-size:11px;transition:transform .15s}
.nav-grp.tog.closed::after{transform:rotate(-90deg)}
.nav-sub.closed{display:none}
.main{min-width:0;display:flex;flex-direction:column}
.top{height:var(--top-h);display:flex;align-items:center;gap:10px;padding:0 20px;background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:20}
.top h1{font-size:16px;margin:0;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.top .sp{flex:1}
.icon-btn{width:36px;height:36px;border-radius:8px;border:1px solid var(--border);background:var(--surface);display:grid;place-items:center;cursor:pointer;font-size:16px}
.icon-btn:hover{background:var(--surface-2)}
.menu-btn{display:none}
.user{font-size:13px;color:var(--muted);white-space:nowrap}
.content{padding:20px;display:flex;flex-direction:column;gap:16px;max-width:1440px;width:100%}
.scrim{display:none}

/* components */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px;min-width:0}
.card h3{margin:0 0 12px;font-size:14px;font-weight:600}
.card .hint{font-size:12px;color:var(--muted)}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(min(100%,320px),1fr))}
.kpis{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(min(100%,160px),1fr))}
.kpi{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:12px 14px;box-shadow:var(--shadow)}
.kpi-l{font-size:12px;color:var(--muted)}
.kpi-v{font-size:22px;font-weight:700;margin:2px 0}
.kpi-d{font-size:12px}
.up{color:var(--good)}.down{color:var(--bad)}.flat{color:var(--muted)}
.btn{display:inline-flex;align-items:center;gap:6px;padding:7px 12px;border-radius:8px;border:1px solid var(--border);background:var(--surface);cursor:pointer;font-size:13px;white-space:nowrap}
.btn:hover{background:var(--surface-2)}
.btn.primary{background:var(--brand);border-color:var(--brand);color:var(--brand-fg)}
.btn.primary:hover{filter:brightness(1.08)}
.btn:disabled{opacity:.55;cursor:default}
.toolbar{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.pg-head{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between}
.pg-head h2{margin:0;font-size:18px}
.badge{display:inline-block;font-size:11.5px;padding:2px 8px;border-radius:999px;background:var(--surface-2);color:var(--muted);white-space:nowrap}
.badge.good{background:color-mix(in srgb,var(--good) 15%,transparent);color:var(--good)}
.badge.warn{background:color-mix(in srgb,var(--warn) 16%,transparent);color:var(--warn)}
.badge.bad{background:color-mix(in srgb,var(--bad) 14%,transparent);color:var(--bad)}
.badge.info{background:color-mix(in srgb,var(--info) 14%,transparent);color:var(--info)}
.tbl-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--border);border-radius:8px}
table.tbl{width:100%;border-collapse:collapse;font-size:13px}
.tbl th{text-align:left;font-weight:600;color:var(--muted);font-size:12px;background:var(--surface-2);padding:8px 10px;white-space:nowrap;position:sticky;top:0}
.tbl td{padding:8px 10px;border-top:1px solid var(--border);white-space:nowrap}
.tbl td.r,.tbl th.r{text-align:right}
.tbl tr:hover td{background:var(--surface-2)}
.empty{padding:28px;text-align:center;color:var(--muted);font-size:13px}
.chart{position:relative;height:min(52vh,300px)}
.alert{border:1px solid var(--border);border-left:3px solid var(--warn);background:var(--surface);padding:10px 12px;border-radius:8px;font-size:13px}

/* time filter */
.tf{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;padding-bottom:2px}
.tf::-webkit-scrollbar{display:none}
.tf button{flex:none;padding:6px 12px;border-radius:999px;border:1px solid var(--border);background:var(--surface);cursor:pointer;font-size:12.5px}
.tf button.on{background:var(--fg);color:var(--bg);border-color:var(--fg)}
.tf-range{font-size:12px;color:var(--muted)}
.tf-custom{display:none;gap:6px;align-items:center;flex-wrap:wrap}
.tf-custom.show{display:flex}
input.inp,select.inp{padding:7px 10px;border-radius:8px;border:1px solid var(--border);background:var(--surface);color:var(--fg);font:inherit;font-size:13px;min-width:0}

/* modal */
.modal-bg{position:fixed;inset:0;background:rgba(0,0,0,.45);display:none;align-items:center;justify-content:center;z-index:50;padding:16px}
.modal-bg.show{display:flex}
.modal{background:var(--surface);border-radius:12px;max-width:480px;width:100%;padding:20px;box-shadow:0 10px 30px rgba(0,0,0,.25)}
.modal h3{margin:0 0 12px}
.opt{display:flex;gap:10px;align-items:flex-start;padding:10px;border:1px solid var(--border);border-radius:8px;margin-bottom:8px;cursor:pointer}
.opt.on{border-color:var(--brand);background:var(--brand-soft)}
.field{display:flex;flex-direction:column;gap:4px;margin:10px 0}
.field label{font-size:12px;color:var(--muted)}
.toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:var(--fg);color:var(--bg);padding:10px 16px;border-radius:8px;font-size:13px;z-index:60;display:none;max-width:90vw}
.toast.show{display:block}

/* login */
.login{min-height:100vh;display:grid;place-items:center;padding:16px}
.login .card{width:100%;max-width:360px}

/* mobile */
@media (max-width:900px){
  .app{grid-template-columns:1fr}
  .side{position:fixed;left:0;top:0;bottom:0;width:min(84vw,280px);z-index:40;transform:translateX(-100%);transition:transform .2s ease}
  .app.nav-open .side{transform:none}
  .app.nav-open .scrim{display:block;position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:30}
  .menu-btn{display:grid}
  .content{padding:12px;gap:12px}
  .top{padding:0 12px}
  .user{display:none}
  .kpis{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
  .kpi{padding:10px}
  .kpi-v{font-size:18px}
  .card{padding:12px}
  .pg-head h2{font-size:16px}
  .chart{height:240px}
  .modal{padding:16px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}

/* ===== NEXVA site header (giống nexva.vn) ===== */
.top{background:#00213d;border-bottom:1px solid rgba(255,255,255,.06);color:#fff;height:60px}
.top h1{color:#fff;font-weight:600;opacity:.92;font-size:15px}
.top .user{color:rgba(255,255,255,.75)}
.top .icon-btn{background:transparent;border-color:rgba(255,255,255,.18);color:#fff}
.top .icon-btn:hover{background:rgba(255,255,255,.1)}
.top-logo{display:flex;align-items:center;gap:8px;padding-right:14px;margin-right:4px;border-right:1px solid rgba(255,255,255,.14);height:32px;flex:none}
.top-logo img{height:26px;width:auto;display:block}
.top-logo b{font-size:15px;font-weight:700;letter-spacing:.08em;color:#FF6B1A}
.side .brand{display:none}
.side{top:0;height:100vh;padding-top:14px}
@media (min-width:901px){.app{grid-template-columns:var(--side-w) 1fr}}
@media (max-width:900px){.top-logo{border-right:0;padding-right:0}.top h1{display:none}.top-logo img{height:22px}}
.login .brand{display:flex;justify-content:center;background:#00213d;margin:-16px -16px 14px;padding:16px;border-radius:var(--radius) var(--radius) 0 0;gap:8px}
.login .brand img{height:28px}
.login .brand b{color:#FF6B1A;letter-spacing:.08em}

.acct{position:relative}
.acct-menu{display:none;position:absolute;right:0;top:44px;min-width:220px;background:var(--surface);color:var(--fg);border:1px solid var(--border);border-radius:10px;box-shadow:0 10px 30px rgba(0,0,0,.18);padding:6px;z-index:70}
.acct.open .acct-menu{display:block}
.acct-head{padding:8px 10px 10px;border-bottom:1px solid var(--border);margin-bottom:4px;display:flex;flex-direction:column}
.acct-head span{font-size:12px;color:var(--muted);word-break:break-all}
.acct-menu a,.acct-menu button{display:block;width:100%;text-align:left;padding:8px 10px;border-radius:6px;border:0;background:none;color:var(--fg);font-size:13.5px;cursor:pointer}
.acct-menu a:hover,.acct-menu button:hover{background:var(--surface-2)}
.acct-menu #logoutBtn{color:var(--bad)}
.tabs-h{display:flex;gap:4px;border-bottom:1px solid var(--border);overflow-x:auto;scrollbar-width:none}
.tabs-h a{padding:9px 14px;font-size:13.5px;color:var(--muted);border-bottom:2px solid transparent;white-space:nowrap}
.tabs-h a.on{color:var(--brand);border-color:var(--brand);font-weight:600}

/* ===== Fluid desktop (2026-10-15): co giãn theo độ phân giải, không cố định pixel ===== */
:root{
  --side-w:clamp(200px,15vw,300px);
  --top-h:clamp(52px,4.2vw,68px);
  --gap:clamp(12px,1.1vw,24px);
  --pad:clamp(14px,1.6vw,36px);
  font-size:clamp(13px,0.42vw + 8.6px,17px);
}
html,body{font-size:inherit}
.content{max-width:none;padding:var(--pad);gap:var(--gap)}
.top{height:var(--top-h);padding:0 var(--pad)}
.top h1{font-size:1.05rem}
.top-logo img{height:calc(var(--top-h) * .44)}
.top-logo b{font-size:1.05rem}
.icon-btn{width:calc(var(--top-h) * .62);height:calc(var(--top-h) * .62);font-size:1.1rem}
.nav-it{font-size:.96rem;padding:.5em .75em}
.nav-it.sub{padding-left:2em;font-size:.93rem}
.nav-grp{font-size:.75rem}
.card{padding:clamp(12px,1.2vw,24px)}
.card h3{font-size:1rem}
.grid{gap:var(--gap);grid-template-columns:repeat(auto-fit,minmax(min(100%,max(320px,28vw)),1fr))}
.kpis{gap:calc(var(--gap) * .75);grid-template-columns:repeat(auto-fit,minmax(min(100%,max(150px,11vw)),1fr))}
.kpi{padding:.85em 1em}
.kpi-l,.kpi-d{font-size:.82rem}
.kpi-v{font-size:clamp(18px,1.15vw + 6px,32px)}
.chart{height:clamp(220px,32vh,520px)}
.tbl{font-size:.92rem}
.tbl th{font-size:.82rem}
.tbl th,.tbl td{padding:.55em .8em}
.btn,.tf button,input.inp,select.inp{font-size:.92rem}
.pg-head h2{font-size:1.25rem}
.badge{font-size:.8rem}

@media (max-width:900px){
  :root{--side-w:min(84vw,280px);--top-h:56px;font-size:14px}
  .kpis{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid{grid-template-columns:1fr}
  .chart{height:240px}
}
/* lưới co giãn: hàng 2 ô luôn lấp đầy chiều ngang ở mọi độ phân giải */
.grid{display:flex;flex-wrap:wrap}
.grid>*{flex:1 1 max(320px,26vw);min-width:0}
.grid>[style*="grid-column:1/-1"]{flex-basis:100%}
@media (max-width:900px){.grid>*{flex-basis:100%}}
.kpis{grid-template-columns:repeat(auto-fit,minmax(min(100%,max(140px,9vw)),1fr))}