:root {
  color-scheme: light;
  --bg: #f3f6fb;
  --surface: #ffffff;
  --surface-2: #f7f9fc;
  --ink: #0f1b2d;
  --ink-2: #3f4b5e;
  --muted: #5f6b7c;
  --line: #e2e8f0;
  --grid: #e8edf3;
  --axis: #c3ccd8;
  --brand: #1f6feb;
  --brand-2: #1557c0;
  --brand-soft: #e8f1fe;
  --series-1: #2a78d6;
  --series-soft: #cde2fb;
  --good: #0ca30c;
  --good-ink: #006300;
  --good-soft: #e5f6e5;
  --warn: #fab219;
  --warn-ink: #7a4f00;
  --warn-soft: #fff4d9;
  --crit: #d03b3b;
  --crit-ink: #a42828;
  --crit-soft: #fdeaea;
  --neutral-soft: #eef1f5;
  --shadow: 0 1px 2px rgba(15, 27, 45, .06), 0 6px 20px rgba(15, 27, 45, .05);
  --r: 14px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #0d1117; --surface: #161b22; --surface-2: #1c222b; --ink: #f2f5f9; --ink-2: #c9d1dc; --muted: #9aa5b4;
    --line: #2a313c; --grid: #262d37; --axis: #3a4350; --brand: #3987e5; --brand-2: #5598e7; --brand-soft: #16263d;
    --series-1: #3987e5; --series-soft: #1c3a5e; --good-ink: #3fc43f; --good-soft: #10281a; --warn-ink: #f5c35b;
    --warn-soft: #2e2410; --crit-ink: #ff8a8a; --crit-soft: #331819; --neutral-soft: #222933;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4);
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0d1117; --surface: #161b22; --surface-2: #1c222b; --ink: #f2f5f9; --ink-2: #c9d1dc; --muted: #9aa5b4;
  --line: #2a313c; --grid: #262d37; --axis: #3a4350; --brand: #3987e5; --brand-2: #5598e7; --brand-soft: #16263d;
  --series-1: #3987e5; --series-soft: #1c3a5e; --good-ink: #3fc43f; --good-soft: #10281a; --warn-ink: #f5c35b;
  --warn-soft: #2e2410; --crit-ink: #ff8a8a; --crit-soft: #331819; --neutral-soft: #222933;
  --shadow: 0 1px 2px rgba(0, 0, 0, .4);
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--ink); font: 15px/1.5 var(--font); -webkit-font-smoothing: antialiased; }
button, input, select, textarea { font: inherit; color: inherit; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.muted { color: var(--muted); }
.boot-wait { padding: 40vh 16px 0; text-align: center; color: var(--muted); }
[hidden] { display: none !important; }

/* ---------- Nút & ô nhập ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 40px; padding: 8px 16px; border-radius: 10px; border: 1px solid var(--line); background: var(--surface); font-weight: 600; cursor: pointer; text-decoration: none; }
.btn:hover { border-color: var(--axis); }
.btn.primary { background: var(--brand); border-color: var(--brand); color: #fff; }
.btn.primary:hover { background: var(--brand-2); }
.btn.danger { color: var(--crit-ink); }
.btn.block { width: 100%; }
.btn:disabled { opacity: .6; cursor: progress; }
.btn:focus-visible, .icon-btn:focus-visible, .seg button:focus-visible, select:focus-visible, input:focus-visible, summary:focus-visible, .hit:focus-visible { outline: 3px solid color-mix(in srgb, var(--brand) 45%, transparent); outline-offset: 2px; }
label { display: grid; gap: 6px; font-weight: 600; color: var(--ink-2); }
input, select, textarea { min-height: 42px; padding: 8px 12px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); font-weight: 400; min-width: 0; }
input:focus, select:focus, textarea:focus { border-color: var(--brand); outline: none; }
.err { color: var(--crit-ink); margin: 0; min-height: 1.5em; }
.ok-text { color: var(--good-ink); margin: 0; }

/* ---------- Đăng nhập ---------- */
.login { min-height: 100vh; display: grid; place-items: center; padding: 24px 16px; background: radial-gradient(1200px 500px at 50% -10%, var(--brand-soft), transparent 70%), var(--bg); }
.login-card { width: min(400px, 100%); display: grid; gap: 16px; padding: 28px; }
.brand-row { display: flex; align-items: center; gap: 12px; margin-bottom: 4px; }
.brand-name { font-size: 20px; font-weight: 700; }
.logo { width: 40px; height: 40px; flex: none; }

/* ---------- Khung ---------- */
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r); box-shadow: var(--shadow); }
.top { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 12px; padding: 10px 20px; background: color-mix(in srgb, var(--surface) 92%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.top .brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; white-space: nowrap; }
.top .brand .logo { width: 32px; height: 32px; }
.ctrls { flex: 1; display: flex; align-items: center; gap: 10px; min-width: 0; justify-content: flex-end; }
.ctrls select { max-width: 280px; }
.seg { display: inline-flex; padding: 3px; border-radius: 11px; background: var(--neutral-soft); gap: 2px; overflow-x: auto; scrollbar-width: none; }
.seg button { border: 0; background: transparent; padding: 6px 12px; min-height: 36px; border-radius: 8px; cursor: pointer; white-space: nowrap; font-weight: 600; color: var(--ink-2); }
.seg button[aria-pressed="true"] { background: var(--surface); color: var(--ink); box-shadow: 0 1px 3px rgba(15, 27, 45, .12); }
.icon-btn { width: 40px; height: 40px; flex: none; display: inline-grid; place-items: center; border-radius: 10px; border: 1px solid var(--line); background: var(--surface); cursor: pointer; }
.icon-btn svg { width: 20px; height: 20px; }
.icon-btn.spin svg { animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.menu { position: relative; flex: none; margin-left: auto; }
.menu summary { list-style: none; width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; background: var(--brand-soft); color: var(--brand-2); font-weight: 700; cursor: pointer; }
.menu summary::-webkit-details-marker { display: none; }
.menu-pop { position: absolute; right: 0; top: calc(100% + 8px); width: 260px; padding: 8px; display: grid; gap: 2px; z-index: 30; }
.menu-pop .who { padding: 8px 10px 10px; border-bottom: 1px solid var(--line); margin-bottom: 4px; }
.menu-pop button { text-align: left; border: 0; background: transparent; padding: 10px; border-radius: 8px; cursor: pointer; }
.menu-pop button:hover { background: var(--neutral-soft); }
.view { max-width: 1320px; margin: 0 auto; padding: 20px 20px 40px; display: grid; gap: 16px; }
.foot-note { text-align: center; color: var(--muted); margin: 8px 0 0; }

/* ---------- Dải thông tin tài khoản ---------- */
.strip { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 16px; color: var(--ink-2); }
.strip strong { color: var(--ink); font-size: 17px; }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px; border-radius: 999px; font-weight: 600; background: var(--neutral-soft); color: var(--ink-2); white-space: nowrap; }
.chip i { font-style: normal; }
.chip.good { background: var(--good-soft); color: var(--good-ink); }
.chip.warn { background: var(--warn-soft); color: var(--warn-ink); }
.chip.crit { background: var(--crit-soft); color: var(--crit-ink); }
.chip.brand { background: var(--brand-soft); color: var(--brand-2); }

/* ---------- Số lớn ---------- */
.kpis { display: grid; grid-template-columns: minmax(260px, 1.3fr) 3fr; gap: 16px; }
.hero { padding: 22px 24px; display: flex; flex-direction: column; justify-content: space-between; gap: 12px; background: linear-gradient(135deg, var(--brand) 0%, #2a78d6 55%, #3e8ef0 100%); color: #fff; border: 0; }
.hero .lbl { font-weight: 600; opacity: .92; }
.hero .big { font-size: clamp(30px, 2.9vw, 44px); font-weight: 700; line-height: 1.1; letter-spacing: -.02em; white-space: nowrap; }
.hero .sub { opacity: .92; }
.hero-bars { display: flex; align-items: flex-end; gap: 3px; height: 44px; }
.hero-bars span { flex: 1; max-width: 18px; background: rgba(255, 255, 255, .55); border-radius: 3px 3px 0 0; min-height: 2px; }
.tiles { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.tile { padding: 14px 16px; display: grid; gap: 2px; align-content: start; min-width: 0; }
.tile .lbl { color: var(--muted); font-weight: 600; display: flex; align-items: center; gap: 6px; }
.tile .val { font-size: 26px; font-weight: 700; letter-spacing: -.01em; overflow-wrap: anywhere; }
.tile .sub { color: var(--ink-2); }
.tile.main { border-color: color-mix(in srgb, var(--brand) 35%, var(--line)); background: linear-gradient(180deg, var(--brand-soft), var(--surface) 70%); }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--series-1); flex: none; }

/* ---------- Phễu ---------- */
.funnel { padding: 18px 20px; display: grid; gap: 14px; }
.sec-h { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.sec-h h2 { margin: 0; font-size: 17px; }
.steps { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; align-items: stretch; gap: 8px; }
.step { background: var(--surface-2); border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; display: grid; gap: 6px; min-width: 0; }
.step .val { font-size: 24px; font-weight: 700; overflow-wrap: anywhere; }
.step .bar { height: 8px; border-radius: 4px; background: var(--series-soft); overflow: hidden; }
.step .bar span { display: block; height: 100%; background: var(--series-1); border-radius: 4px; min-width: 4px; }
.arrow { display: grid; place-items: center; align-content: center; gap: 2px; color: var(--muted); text-align: center; padding: 0 2px; }
.arrow b { color: var(--ink); }
.hints { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.hints li { display: flex; gap: 10px; align-items: flex-start; padding: 10px 12px; border-radius: 10px; background: var(--surface-2); }
.hints li i { font-style: normal; flex: none; width: 24px; height: 24px; border-radius: 50%; display: grid; place-items: center; font-weight: 700; }
.hints li.warn i { background: var(--warn-soft); color: var(--warn-ink); }
.hints li.good i { background: var(--good-soft); color: var(--good-ink); }

/* ---------- Biểu đồ ---------- */
.charts { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.chart-card { padding: 18px 20px 12px; display: grid; gap: 8px; min-width: 0; }
.chart-card .sum { color: var(--muted); }
.chart { position: relative; min-height: 220px; }
.chart svg { display: block; width: 100%; height: 220px; overflow: visible; }
.chart .grid { stroke: var(--grid); stroke-width: 1; }
.chart .base { stroke: var(--axis); stroke-width: 1; }
.chart .tick { fill: var(--muted); font-size: 14px; font-variant-numeric: tabular-nums; }
.chart .peak { fill: var(--ink-2); font-size: 14px; font-weight: 600; }
.chart .bar { fill: var(--series-1); transition: opacity .12s; }
.chart.hovering .bar { opacity: .45; }
.chart.hovering .bar.on { opacity: 1; }
.chart .hit { fill: transparent; cursor: default; }
.empty-chart { height: 220px; display: grid; place-items: center; color: var(--muted); background: var(--surface-2); border-radius: 10px; text-align: center; padding: 16px; }
.tip { position: fixed; z-index: 50; pointer-events: none; background: var(--ink); color: var(--surface); padding: 8px 12px; border-radius: 10px; font-size: 14px; line-height: 1.45; box-shadow: 0 6px 20px rgba(0, 0, 0, .2); max-width: 260px; }
.tbl-toggle summary { cursor: pointer; color: var(--brand-2); font-weight: 600; padding: 6px 0; }

/* ---------- Bảng ---------- */
.camps { padding: 18px 0 8px; display: grid; gap: 12px; min-width: 0; }
.camps .sec-h { padding: 0 20px; }
.target-bar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.tbl-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 12px 14px; text-align: right; border-bottom: 1px solid var(--line); white-space: nowrap; font-variant-numeric: tabular-nums; vertical-align: top; }
th { color: var(--muted); font-weight: 600; background: var(--surface-2); position: sticky; top: 0; }
th:first-child, td:first-child { text-align: left; white-space: normal; min-width: 240px; max-width: 360px; position: sticky; left: 0; background: var(--surface); z-index: 1; }
th:first-child { background: var(--surface-2); z-index: 2; }
th:last-child, td:last-child { text-align: left; white-space: normal; min-width: 220px; }
tbody tr:hover td { background: var(--surface-2); }
tr:last-child td { border-bottom: 0; }
.cname { font-weight: 600; overflow-wrap: anywhere; }
.cmeta { color: var(--muted); display: flex; flex-wrap: wrap; gap: 4px 10px; align-items: center; }
.st { display: inline-flex; align-items: center; gap: 6px; }
.st::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--axis); }
.st.on::before { background: var(--good); }
.why { color: var(--muted); margin-top: 4px; white-space: normal; }
.v-scale, .v-keep { background: var(--good-soft); color: var(--good-ink); }
.v-fix { background: var(--warn-soft); color: var(--warn-ink); }
.v-stop { background: var(--crit-soft); color: var(--crit-ink); }
.daily td:first-child { min-width: 120px; }

/* ---------- Kết nối ---------- */
.setup { display: grid; grid-template-columns: 1.1fr 1fr; gap: 16px; align-items: start; }
.setup-hero { padding: 24px; display: grid; gap: 18px; }
.setup-hero h1 { margin: 0; font-size: 26px; line-height: 1.25; }
.link-art { display: flex; align-items: center; gap: 10px; }
.link-art .node { flex: 1; min-width: 0; padding: 14px; border-radius: 12px; background: var(--surface-2); border: 1px solid var(--line); display: grid; gap: 4px; justify-items: center; text-align: center; font-weight: 600; }
.link-art .node svg { width: 36px; height: 36px; }
.link-art .wire { flex: 0 0 70px; height: 2px; background: repeating-linear-gradient(90deg, var(--axis) 0 6px, transparent 6px 12px); position: relative; }
.link-art .wire::after { content: "ads_read"; position: absolute; left: 50%; top: -28px; transform: translateX(-50%); font-size: 14px; color: var(--muted); white-space: nowrap; }
.steps-list { margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; counter-reset: s; }
.steps-list li { counter-increment: s; display: grid; grid-template-columns: 32px 1fr; gap: 12px; align-items: start; }
.steps-list li::before { content: counter(s); width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center; background: var(--brand-soft); color: var(--brand-2); font-weight: 700; }
.steps-list b { color: var(--ink); }
.connect-card { padding: 24px; display: grid; gap: 14px; }
.connect-card h2 { margin: 0; font-size: 19px; }
.safe { display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; color: var(--ink-2); }
.safe li { display: flex; gap: 8px; }
.safe li::before { content: "✓"; color: var(--good-ink); font-weight: 700; }

/* ---------- Hộp thoại ---------- */
.dlg { border: 0; padding: 0; border-radius: 16px; width: min(460px, calc(100vw - 32px)); background: var(--surface); color: var(--ink); box-shadow: 0 24px 60px rgba(0, 0, 0, .25); }
.dlg::backdrop { background: rgba(15, 27, 45, .45); }
.dlg form { padding: 22px; display: grid; gap: 14px; }
.dlg h2 { margin: 0; font-size: 19px; }
.dlg .row { display: flex; gap: 10px; justify-content: flex-end; flex-wrap: wrap; }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; margin: 0; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; font-weight: 600; overflow-wrap: anywhere; }

/* ---------- Trạng thái ---------- */
.skel { background: linear-gradient(90deg, var(--neutral-soft), var(--surface-2), var(--neutral-soft)); background-size: 200% 100%; animation: sh 1.2s infinite; border-radius: var(--r); }
@keyframes sh { to { background-position: -200% 0; } }
.state { padding: 36px 24px; text-align: center; display: grid; gap: 12px; justify-items: center; }
.state h2 { margin: 0; font-size: 19px; }
.state p { margin: 0; color: var(--ink-2); max-width: 560px; }

@media (max-width: 1100px) {
  .kpis { grid-template-columns: 1fr; }
  .setup { grid-template-columns: 1fr; }
}
@media (max-width: 900px) {
  .top { flex-wrap: wrap; padding: 10px 16px; }
  .ctrls { order: 3; flex-basis: 100%; justify-content: flex-start; flex-wrap: wrap; }
  .ctrls select { flex: 1; max-width: none; }
  .top .brand { flex: 1; }
  .charts { grid-template-columns: 1fr; }
  .view { padding: 16px 16px 32px; }
}
@media (max-width: 760px) {
  .tiles { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .seg { order: 3; width: 100%; display: grid; grid-template-columns: repeat(3, 1fr); }
  .seg button { padding: 6px 4px; }
  /* Bảng chiến dịch → thẻ dọc, mỗi ô có nhãn riêng */
  .camps table:not(.daily) thead { display: none; }
  .camps table:not(.daily), .camps table:not(.daily) tbody, .camps table:not(.daily) tr { display: block; }
  .camps table:not(.daily) tr { padding: 12px 16px; border-bottom: 1px solid var(--line); display: grid; grid-template-columns: 1fr 1fr; gap: 8px 12px; }
  .camps table:not(.daily) td { display: block; position: static; padding: 0; border: 0; text-align: left; white-space: normal; min-width: 0; max-width: none; background: transparent; }
  .camps table:not(.daily) td:first-child, .camps table:not(.daily) td:last-child { grid-column: 1 / -1; min-width: 0; }
  .camps table:not(.daily) td[data-label]::before { content: attr(data-label); display: block; color: var(--muted); font-weight: 600; }
  .camps table:not(.daily) td[data-empty] { display: none; }
  .camps tbody tr:hover td { background: transparent; }
  .steps { grid-template-columns: 1fr; }
  .arrow { grid-auto-flow: column; gap: 8px; padding: 2px 0; }
  .arrow svg { transform: rotate(90deg); }
  .tiles { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .tile .val { font-size: 22px; }
  .hero { padding: 18px; }
  .login-card { padding: 22px; }
  .link-art .wire { flex-basis: 20px; }
  .link-art .node { overflow-wrap: anywhere; padding: 12px 8px; }
  .setup-hero, .connect-card { padding: 18px; }
  .setup-hero h1 { font-size: 22px; }
  .link-art .wire::after { display: none; }
}
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; } }