/* VNe Kit — bản thiết kế lại (concept). Token = token thật của VNe (packages/config/styles/tokens.css),
   hệ «Tinh Túy»: M3 (vai trò màu, state layer, motion) + Liquid Glass (phân lớp, kính cho chrome) +
   design.google (lưới 4px, a11y). MỌI trang trong pages/ chỉ dùng class ở đây — không màu/cỡ tự chế. */

:root {
  --surface: #ffffff; --surface-2: #fafafb; --surface-3: #f4f4f6; --surface-4: #ececf0;
  --text: #18181b; --muted: #52525b; --subtle: #71717a;
  --border: #e5e5e9; --border-strong: #d4d4d8;
  --primary: #3a4fd8; --primary-hover: #2d3fb5; --primary-soft: #eef2ff; --on-primary: #ffffff;
  --coral: #ff7a59;
  --success: #1f7d58; --success-soft: #e8f5ee; --on-success: #ffffff;
  --warning: #a36e12; --warning-soft: #fdf4e3; --on-warning: #ffffff;
  --danger: #ae3535; --danger-soft: #fcecec; --on-danger: #ffffff;
  --info: #2169a6; --info-soft: #e8f1fa;
  --shadow-1: 0 1px 2px rgb(24 24 27 / .06);
  --shadow-2: 0 1px 2px rgb(24 24 27 / .06), 0 8px 24px rgb(24 24 27 / .08);
  --shadow-3: 0 12px 40px rgb(9 9 11 / .14);
  --r-sm: 6px; --r-md: 8px; --r-lg: 12px; --r-xl: 16px; --r-2xl: 20px; --r-full: 999px;
  --ease: cubic-bezier(.16,1,.3,1); --ease-std: cubic-bezier(.4,0,.2,1);
  --font: "Be Vietnam Pro", -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --rail-w: 84px; --side-w: 248px; --top-h: 56px;
  color-scheme: light;
}
:root[data-theme="dark"] {
  --surface: #09090b; --surface-2: #18181b; --surface-3: #131316; --surface-4: #232327;
  --text: #fafafa; --muted: #a1a1aa; --subtle: #8a8a93;
  --border: #27272a; --border-strong: #3f3f46;
  --primary: #6b81f5; --primary-hover: #94a6fb; --primary-soft: #1a1c48; --on-primary: #0b0b12;
  --success: #4ade80; --success-soft: #0f2a1c; --on-success: #0b0b12;
  --warning: #fbbf24; --warning-soft: #2b2110; --on-warning: #0b0b12;
  --danger: #f87171; --danger-soft: #2e1212; --on-danger: #18181b;
  --info: #60a5fa; --info-soft: #0f1f33;
  --shadow-1: none; --shadow-2: none; --shadow-3: 0 12px 40px rgb(0 0 0 / .5);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; }
body {
  font: 400 15px/1.55 var(--font); letter-spacing: -.005em; color: var(--text); background: var(--surface);
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
h1, h2, h3, h4, p { margin: 0; text-wrap: pretty; }
h1, h2, h3 { text-wrap: balance; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 2px; }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 4px; }
img, svg { display: block; }
.num { font-variant-numeric: tabular-nums; }
.mono { font-family: var(--mono); font-size: 12.5px; }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } }

/* ── Chữ (8 vai) ── */
.t-hero { font-size: clamp(34px, 4.4vw, 56px); line-height: 1.08; font-weight: 700; letter-spacing: -.025em; }
.t-display { font-size: 28px; line-height: 34px; font-weight: 650; letter-spacing: -.015em; }
.t-title { font-size: 20px; line-height: 28px; font-weight: 600; letter-spacing: -.01em; }
.t-title-sm { font-size: 17px; line-height: 24px; font-weight: 600; }
.t-body { font-size: 15px; line-height: 23px; }
.t-label { font-size: 13px; line-height: 18px; font-weight: 500; }
.t-caption { font-size: 12px; line-height: 16px; font-weight: 450; color: var(--muted); }
.t-overline { font-size: 11.5px; line-height: 16px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--subtle); }
.muted { color: var(--muted); } .subtle { color: var(--subtle); }
.c-primary { color: var(--primary); } .c-success { color: var(--success); } .c-danger { color: var(--danger); } .c-warning { color: var(--warning); }

/* ── Bố cục ── */
.row { display: flex; align-items: center; gap: 8px; } .row-12 { gap: 12px; } .row-16 { gap: 16px; } .row-24 { gap: 24px; }
.stack { display: flex; flex-direction: column; gap: 8px; } .stack-4 { gap: 4px; } .stack-12 { gap: 12px; } .stack-16 { gap: 16px; } .stack-24 { gap: 24px; } .stack-32 { gap: 32px; }
.between { justify-content: space-between; } .wrap { flex-wrap: wrap; } .grow { flex: 1; min-width: 0; } .center { align-items: center; justify-content: center; }
.grid { display: grid; gap: 16px; }
.g-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); } .g-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); } .g-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.g-main-side { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 24px; }
.container { width: min(1200px, 100% - 48px); margin-inline: auto; }
.page { padding: 24px 32px 48px; display: flex; flex-direction: column; gap: 24px; }
.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.divider { height: 1px; background: var(--border); border: 0; margin: 0; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.nowrap { white-space: nowrap; }

/* ── Nút ── */
.btn {
  --h: 36px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: var(--h);
  padding: 0 14px; border-radius: var(--r-md); border: 1px solid transparent; font: 500 13.5px/1 var(--font);
  white-space: nowrap; cursor: pointer; transition: background .15s var(--ease), border-color .15s var(--ease), transform .15s var(--ease);
  color: var(--text); background: var(--surface-2); border-color: var(--border); text-decoration: none !important;
}
.btn:hover { background: var(--surface-3); border-color: var(--border-strong); }
.btn:active { transform: scale(.98); }
.btn svg { width: 16px; height: 16px; flex: none; }
.btn-primary { background: var(--primary); color: var(--on-primary); border-color: transparent; box-shadow: var(--shadow-1); }
.btn-primary:hover { background: var(--primary-hover); }
.btn-tonal { background: var(--primary-soft); color: var(--primary); border-color: transparent; }
.btn-tonal:hover { background: color-mix(in srgb, var(--primary) 14%, var(--primary-soft)); }
.btn-ghost { background: transparent; border-color: transparent; }
.btn-ghost:hover { background: color-mix(in srgb, var(--text) 6%, transparent); }
.btn-danger { background: var(--danger); color: var(--on-danger); border-color: transparent; }
.btn.c-danger { color: var(--danger); } .btn.c-primary { color: var(--primary); }
.btn-sm { --h: 30px; padding: 0 10px; font-size: 12.5px; }
.btn-lg { --h: 44px; padding: 0 20px; font-size: 15px; border-radius: var(--r-lg); }
.btn-icon { width: var(--h); padding: 0; }
.btn[disabled], .btn.is-disabled { background: var(--surface-3); color: var(--subtle); border-color: transparent; cursor: not-allowed; box-shadow: none; }
.btn.is-loading { color: transparent !important; position: relative; }
.btn.is-loading::after { content: ""; position: absolute; width: 16px; height: 16px; border-radius: 50%; border: 2px solid var(--on-primary); border-right-color: transparent; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Trường nhập ── */
.field { display: flex; flex-direction: column; gap: 6px; }
.label { font: 500 13px/18px var(--font); color: var(--text); }
.label .req { color: var(--danger); margin-left: 2px; }
.input, .select, .textarea {
  height: 40px; width: 100%; padding: 0 12px; border-radius: var(--r-md); border: 1px solid var(--border);
  background: var(--surface); color: var(--text); font: 400 14px/1 var(--font); transition: border-color .15s var(--ease), box-shadow .15s var(--ease);
}
.textarea { height: auto; min-height: 88px; padding: 10px 12px; line-height: 1.5; resize: vertical; }
.input::placeholder, .textarea::placeholder { color: var(--subtle); }
.input:focus, .select:focus, .textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 20%, transparent); }
.input.is-error { border-color: var(--danger); box-shadow: 0 0 0 3px color-mix(in srgb, var(--danger) 16%, transparent); }
.help { font-size: 12.5px; color: var(--muted); } .error-text { font-size: 12.5px; color: var(--danger); }
.select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%); background-position: calc(100% - 17px) 18px, calc(100% - 12px) 18px; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 32px; }
.input-icon { position: relative; } .input-icon svg { position: absolute; left: 12px; top: 50%; translate: 0 -50%; width: 16px; height: 16px; color: var(--subtle); } .input-icon .input { padding-left: 36px; }
.check { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; cursor: pointer; }
.check i { width: 18px; height: 18px; border-radius: 5px; border: 1.5px solid var(--border-strong); display: grid; place-items: center; background: var(--surface); }
.check.on i { background: var(--primary); border-color: var(--primary); }
.check.on i::after { content: ""; width: 9px; height: 5px; border-left: 2px solid var(--on-primary); border-bottom: 2px solid var(--on-primary); rotate: -45deg; translate: 0 -1px; }
.switch { display: inline-block; vertical-align: middle; width: 36px; height: 20px; border-radius: 999px; background: var(--border-strong); position: relative; flex: none; }
.switch::after { content: ""; position: absolute; top: 2px; left: 2px; width: 16px; height: 16px; border-radius: 50%; background: #fff; box-shadow: var(--shadow-1); transition: translate .2s var(--ease); }
.switch.on { background: var(--primary); } .switch.on::after { translate: 16px 0; }

/* ── Bề mặt ── */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-lg); box-shadow: var(--shadow-1); }
:root[data-theme="dark"] .card { background: var(--surface-2); }
.card-pad { padding: 20px; } .card-pad-sm { padding: 14px 16px; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 16px 20px; border-bottom: 1px solid var(--border); }
.card-raised { box-shadow: var(--shadow-2); }
.well { background: var(--surface-3); border-radius: var(--r-lg); padding: 16px; }
.glass {
  background: color-mix(in srgb, var(--surface) 78%, transparent); -webkit-backdrop-filter: blur(20px) saturate(1.5); backdrop-filter: blur(20px) saturate(1.5);
  border: 1px solid color-mix(in srgb, var(--border) 60%, transparent); box-shadow: var(--shadow-3);
}
@supports not (backdrop-filter: blur(1px)) { .glass { background: var(--surface-2); } }

/* ── Badge / chip / avatar ── */
.badge { display: inline-flex; align-items: center; gap: 5px; height: 22px; padding: 0 8px; border-radius: var(--r-full); font: 600 11.5px/1 var(--font); white-space: nowrap; background: var(--surface-3); color: var(--muted); }
.badge::before { content: none; }
.badge.dot::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.b-primary { background: var(--primary-soft); color: var(--primary); } .b-success { background: var(--success-soft); color: var(--success); }
.b-warning { background: var(--warning-soft); color: var(--warning); } .b-danger { background: var(--danger-soft); color: var(--danger); } .b-info { background: var(--info-soft); color: var(--info); }
.b-solid { background: var(--text); color: var(--surface); }
.chip { display: inline-flex; align-items: center; gap: 6px; height: 30px; padding: 0 12px; border-radius: var(--r-full); border: 1px solid var(--border); font-size: 13px; color: var(--muted); background: var(--surface); white-space: nowrap; }
.chip.on { background: var(--primary-soft); border-color: transparent; color: var(--primary); font-weight: 500; }
.avatar { --s: 32px; width: var(--s); height: var(--s); border-radius: 50%; flex: none; display: grid; place-items: center; font: 600 calc(var(--s) * .38)/1 var(--font); color: #fff; background: var(--av, #4a5bd0); }
.avatar.sm { --s: 24px; } .avatar.lg { --s: 44px; } .avatar.xl { --s: 64px; }
.avatar.sq { border-radius: 10px; }
.av-1 { --av: #4a5bd0; } .av-2 { --av: #0b7a5f; } .av-3 { --av: #a85d0e; } .av-4 { --av: #ab3368; } .av-5 { --av: #6646c2; } .av-6 { --av: #1f6dab; }
.avatars { display: flex; } .avatars .avatar { border: 2px solid var(--surface); margin-left: -8px; } .avatars .avatar:first-child { margin-left: 0; }
.count { position: absolute; top: -5px; right: -5px; min-width: 18px; height: 18px; padding: 0 5px; border-radius: 999px; background: var(--danger); color: var(--on-danger); border: 2px solid var(--surface); font: 700 10.5px/14px var(--font); text-align: center; font-variant-numeric: tabular-nums; }

/* ── Tab / segmented ── */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); }
.tab { padding: 10px 12px; font-size: 14px; color: var(--muted); border-bottom: 2px solid transparent; margin-bottom: -1px; white-space: nowrap; }
.tab.on { color: var(--text); border-bottom-color: var(--primary); font-weight: 500; }
.seg { display: inline-flex; padding: 3px; gap: 2px; background: var(--surface-3); border-radius: var(--r-md); }
.seg span { padding: 6px 12px; border-radius: 6px; font-size: 13px; color: var(--muted); white-space: nowrap; }
.seg span.on { background: var(--surface); color: var(--text); box-shadow: var(--shadow-1); font-weight: 500; }
:root[data-theme="dark"] .seg span.on { background: var(--surface-4); }

/* ── Bảng ── */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--r-lg); background: var(--surface); }
:root[data-theme="dark"] .table-wrap { background: var(--surface-2); }
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th { text-align: left; font: 600 12px/16px var(--font); color: var(--subtle); padding: 10px 16px; border-bottom: 1px solid var(--border); background: var(--surface-2); white-space: nowrap; }
:root[data-theme="dark"] .table th { background: var(--surface-3); }
.table td { padding: 12px 16px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.table tr:last-child td { border-bottom: 0; }
.table tbody tr:hover td { background: color-mix(in srgb, var(--primary) 4%, transparent); }
.table .r { text-align: right; } .table td.r { font-variant-numeric: tabular-nums; }

/* ── KPI / list / timeline / kanban ── */
.kpi { padding: 16px 18px; } .kpi .v { font: 650 26px/32px var(--font); letter-spacing: -.015em; font-variant-numeric: tabular-nums; margin-top: 6px; }
.kpi .d { font-size: 12.5px; margin-top: 4px; }
.up { color: var(--success); } .down { color: var(--danger); }
.list-row { display: flex; align-items: center; gap: 12px; padding: 12px 16px; border-bottom: 1px solid var(--border); }
.list-row:last-child { border-bottom: 0; } .list-row.on { background: var(--primary-soft); }
.timeline { position: relative; display: flex; flex-direction: column; gap: 18px; padding-left: 28px; }
.timeline::before { content: ""; position: absolute; left: 11px; top: 6px; bottom: 6px; width: 2px; background: var(--border); }
.tl-item { position: relative; } .tl-dot { position: absolute; left: -28px; top: 0; width: 24px; height: 24px; border-radius: 50%; display: grid; place-items: center; background: var(--surface-3); color: var(--muted); border: 2px solid var(--surface); }
.tl-dot svg { width: 12px; height: 12px; }
.kanban { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(250px, 1fr); gap: 12px; overflow-x: auto; align-items: start; }
.lane { background: var(--surface-3); border-radius: var(--r-lg); padding: 10px; display: flex; flex-direction: column; gap: 8px; }
.lane-head { display: flex; align-items: center; justify-content: space-between; padding: 4px 6px 8px; font: 600 13px/18px var(--font); }
.deal { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 12px; display: flex; flex-direction: column; gap: 8px; box-shadow: var(--shadow-1); }
:root[data-theme="dark"] .deal { background: var(--surface-2); }
.progress { height: 6px; border-radius: 999px; background: var(--surface-4); overflow: hidden; } .progress > i { display: block; height: 100%; background: var(--primary); border-radius: inherit; }
.stepper { display: flex; gap: 8px; } .step { flex: 1; display: flex; flex-direction: column; gap: 6px; font-size: 12.5px; color: var(--muted); }
.step::before { content: ""; height: 4px; border-radius: 999px; background: var(--surface-4); } .step.done::before, .step.on::before { background: var(--primary); } .step.on { color: var(--text); font-weight: 500; }

/* ── Trạng thái ── */
.empty { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 10px; padding: 48px 24px; }
.empty .ico { width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center; background: var(--primary-soft); color: var(--primary); }
.empty .ico svg { width: 22px; height: 22px; }
.skel { background: linear-gradient(90deg, var(--surface-3), var(--surface-4), var(--surface-3)); background-size: 200% 100%; animation: sk 1.4s ease infinite; border-radius: 6px; }
@keyframes sk { to { background-position: -200% 0; } }
.alert { display: flex; gap: 12px; padding: 12px 14px; border-radius: var(--r-md); border: 1px solid; font-size: 14px; }
.alert svg { width: 18px; height: 18px; flex: none; margin-top: 1px; }
.a-info { background: var(--info-soft); border-color: color-mix(in srgb, var(--info) 30%, transparent); } .a-info svg { color: var(--info); }
.a-success { background: var(--success-soft); border-color: color-mix(in srgb, var(--success) 30%, transparent); } .a-success svg { color: var(--success); }
.a-warning { background: var(--warning-soft); border-color: color-mix(in srgb, var(--warning) 30%, transparent); } .a-warning svg { color: var(--warning); }
.a-danger { background: var(--danger-soft); border-color: color-mix(in srgb, var(--danger) 30%, transparent); } .a-danger svg { color: var(--danger); }
.toast { display: inline-flex; align-items: center; gap: 12px; padding: 10px 12px 10px 16px; border-radius: var(--r-lg); background: var(--text); color: var(--surface); font-size: 14px; box-shadow: var(--shadow-3); }
.toast .btn { --h: 28px; background: transparent; color: var(--surface); border-color: color-mix(in srgb, var(--surface) 30%, transparent); }

/* ── AI (lễ phép) ── */
.spark { color: var(--coral); }
.ai-card { background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--r-lg); padding: 14px 16px; display: flex; flex-direction: column; gap: 10px; }
.ai-card .why { font-size: 12px; color: var(--muted); }
.draft-tag { display: inline-flex; align-items: center; height: 22px; padding: 0 8px; border-radius: 6px; background: var(--primary-soft); color: var(--primary); font: 600 11.5px/1 var(--font); }

/* ── Lớp phủ (mock tĩnh) ── */
.scrim { position: absolute; inset: 0; background: rgb(9 9 11 / .42); }
.dialog { position: absolute; left: 50%; top: 50%; translate: -50% -50%; width: min(460px, 100% - 32px); background: var(--surface); border-radius: var(--r-xl); box-shadow: var(--shadow-3); padding: 24px; display: flex; flex-direction: column; gap: 16px; }
:root[data-theme="dark"] .dialog { background: var(--surface-2); border: 1px solid var(--border); }
.sheet-right { position: absolute; top: 0; right: 0; bottom: 0; width: 440px; background: var(--surface); border-left: 1px solid var(--border); box-shadow: var(--shadow-3); display: flex; flex-direction: column; }
:root[data-theme="dark"] .sheet-right { background: var(--surface-2); }

/* ── Khung app (do shell.js dựng) ── */
.app { display: grid; grid-template-columns: var(--rail-w) minmax(0, 1fr); min-height: 100vh; background: linear-gradient(to right, var(--surface-2) calc(var(--rail-w) - 1px), var(--border) 0 var(--rail-w), var(--surface) 0); }
.rail { position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 12px 8px; border-right: 1px solid var(--border); background: var(--surface-2); }
.rail .logo { width: 38px; height: 38px; display: grid; place-items: center; margin-bottom: 10px; } .rail .logo svg { width: 38px; height: 38px; }
.rail a { width: 72px; white-space: nowrap; display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 7px 0 6px; border-radius: 12px; color: var(--muted); font-size: 10.5px; font-weight: 500; text-decoration: none; position: relative; }
.rail a svg { width: 20px; height: 20px; }
.rail a:hover { background: color-mix(in srgb, var(--text) 5%, transparent); color: var(--text); }
.rail a.on { color: var(--primary); } .rail a.on .ri { background: var(--primary-soft); }
.rail .ri { width: 44px; height: 28px; border-radius: 999px; display: grid; place-items: center; position: relative; }
.rail .sep { flex: 1; }
.main { min-width: 0; display: flex; flex-direction: column; }
.topbar { position: sticky; top: 0; z-index: 5; height: var(--top-h); display: flex; align-items: center; gap: 12px; padding: 0 24px; border-bottom: 1px solid color-mix(in srgb, var(--border) 70%, transparent);
  background: color-mix(in srgb, var(--surface) 82%, transparent); -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px); }
.topbar .search { flex: 1; max-width: 520px; height: 36px; border-radius: var(--r-md); background: var(--surface-3); display: flex; align-items: center; gap: 8px; padding: 0 12px; color: var(--subtle); font-size: 13.5px; }
.topbar .search svg { width: 16px; height: 16px; } .kbd { margin-left: auto; font: 500 11px/1 var(--mono); padding: 3px 6px; border-radius: 5px; border: 1px solid var(--border); color: var(--subtle); background: var(--surface); }
.iconbtn { position: relative; width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; color: var(--muted); }
.iconbtn:hover { background: color-mix(in srgb, var(--text) 6%, transparent); } .iconbtn svg { width: 18px; height: 18px; }
.sub { display: grid; grid-template-columns: var(--side-w) minmax(0, 1fr); min-height: calc(100vh - var(--top-h)); }
.sidenav { border-right: 1px solid var(--border); padding: 16px 12px; display: flex; flex-direction: column; gap: 2px; background: var(--surface); }
.sidenav .h { padding: 14px 10px 6px; } .sidenav .h:first-child { padding-top: 2px; }
.sidenav a { display: flex; align-items: center; gap: 10px; height: 36px; padding: 0 10px; border-radius: var(--r-md); color: var(--muted); font-size: 14px; text-decoration: none; }
.sidenav a svg { width: 17px; height: 17px; } .sidenav a .n { margin-left: auto; font-size: 12px; font-variant-numeric: tabular-nums; }
.sidenav a:hover { background: color-mix(in srgb, var(--text) 5%, transparent); color: var(--text); }
.sidenav a.on { background: var(--primary-soft); color: var(--primary); font-weight: 500; }

/* admin: sidebar đậm hơn, không rail */
.admin { display: grid; grid-template-columns: 256px minmax(0, 1fr); min-height: 100vh; }
.admin .sidenav { background: var(--surface-2); position: sticky; top: 0; height: 100vh; }
.admin-brand { display: flex; align-items: center; gap: 10px; padding: 4px 10px 14px; font-weight: 650; }

/* mobile shell */
.m-app { width: 100%; min-height: 100vh; display: flex; flex-direction: column; background: var(--surface); }
.m-top { position: sticky; top: 0; z-index: 5; padding: 12px 16px; display: flex; align-items: center; gap: 12px; background: color-mix(in srgb, var(--surface) 82%, transparent); -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px); border-bottom: 1px solid color-mix(in srgb, var(--border) 70%, transparent); }
.m-body { flex: 1; padding: 12px 16px 96px; display: flex; flex-direction: column; gap: 14px; }
.m-tabs { position: fixed; left: 12px; right: 12px; bottom: 14px; height: 64px; border-radius: 22px; display: grid; grid-template-columns: repeat(5, 1fr); align-items: center; }
.m-tabs a { display: flex; flex-direction: column; align-items: center; gap: 3px; color: var(--muted); font-size: 10.5px; font-weight: 500; text-decoration: none; position: relative; }
.m-tabs a svg { width: 22px; height: 22px; } .m-tabs a.on { color: var(--primary); }
.fab { position: fixed; right: 18px; bottom: 92px; width: 56px; height: 56px; border-radius: 18px; background: var(--primary); color: var(--on-primary); display: grid; place-items: center; box-shadow: var(--shadow-3); }
.fab svg { width: 24px; height: 24px; }

/* marketing */
.site-head { position: sticky; top: 0; z-index: 10; }
.site-head .in { height: 64px; display: flex; align-items: center; gap: 28px; }
.site-head nav { display: flex; gap: 24px; font-size: 14.5px; } .site-head nav a { color: var(--muted); } .site-head nav a:hover { color: var(--text); text-decoration: none; }
.brand { display: flex; align-items: center; gap: 0; font-weight: 700; font-size: 17px; color: var(--text); letter-spacing: -.01em; }
.brand i { width: 30px; height: 30px; display: grid; place-items: center; } .brand i svg, .brand > svg.vne-mark { width: 30px; height: 30px; }
.brand b { color: var(--coral); font-weight: 700; }
.section { padding: 88px 0; } .section-sm { padding: 56px 0; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; height: 30px; padding: 0 12px; border-radius: 999px; background: var(--primary-soft); color: var(--primary); font: 600 13px/1 var(--font); }
.site-foot { border-top: 1px solid var(--border); padding: 48px 0 32px; background: var(--surface-2); font-size: 14px; }
.shot { border-radius: 16px; border: 1px solid var(--border); background: var(--surface); box-shadow: 0 30px 80px -20px rgb(24 24 27 / .25); overflow: hidden; }
:root[data-theme="dark"] .shot { background: var(--surface-2); box-shadow: 0 30px 80px -20px rgb(0 0 0 / .7); }
.price { border: 1px solid var(--border); border-radius: var(--r-xl); padding: 28px; display: flex; flex-direction: column; gap: 18px; background: var(--surface); }
.price.hl { border: 2px solid var(--primary); box-shadow: var(--shadow-2); position: relative; }
:root[data-theme="dark"] .price { background: var(--surface-2); }
.ticks { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; font-size: 14px; }
.ticks li { display: flex; gap: 10px; } .ticks li::before { content: ""; flex: none; width: 16px; height: 16px; margin-top: 3px; border-radius: 50%; background: var(--success-soft) no-repeat center/10px; box-shadow: inset 0 0 0 5px var(--success-soft), inset 0 0 0 16px var(--success); }

/* auth */
.auth { min-height: 100vh; display: grid; grid-template-columns: 1fr 1fr; }
.auth-side { background: radial-gradient(120% 90% at 0% 0%, color-mix(in srgb, var(--primary) 22%, var(--surface)), var(--surface-2)); padding: 48px; display: flex; flex-direction: column; justify-content: space-between; }
.auth-main { display: grid; place-items: center; padding: 48px; } .auth-card { width: min(400px, 100%); display: flex; flex-direction: column; gap: 20px; }

/* biểu đồ tĩnh */
.bars { display: flex; align-items: flex-end; gap: 8px; height: 160px; padding-top: 8px; }
.bars i { flex: 1; border-radius: 6px 6px 2px 2px; background: color-mix(in srgb, var(--primary) 70%, var(--surface)); min-height: 4px; }
.bars i.hi { background: var(--primary); }
.legend { display: flex; gap: 14px; font-size: 12.5px; color: var(--muted); } .legend i { display: inline-block; width: 8px; height: 8px; border-radius: 2px; margin-right: 6px; background: var(--primary); }
.qr { width: 168px; height: 168px; border-radius: 12px; padding: 12px; background: #fff; border: 1px solid var(--border); }
.qr > div { display: none; }

/* ── Responsive dùng chung (site / auth / app) ── */
@media (max-width: 900px) {
  .site-head nav { display: none; }
  .site-head .in { gap: 12px; }
  .site-head .btn-ghost { display: none; }
  .site-foot .g-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .g-3, .g-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .g-main-side { grid-template-columns: minmax(0, 1fr); }
  .auth { grid-template-columns: 1fr; } .auth-side { display: none; } .auth-main { padding: 24px 16px; }
  .section { padding: 56px 0; }
  .container { width: calc(100% - 32px); }
}
@media (max-width: 560px) { .g-2, .g-3, .g-4, .site-foot .g-4 { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 900px) {
  :root { --rail-w: 64px; }
  .rail a { width: 52px; font-size: 0; gap: 0; } .rail .logo { width: 32px; height: 32px; }
  .sub { grid-template-columns: minmax(0, 1fr); } .sub > .sidenav { display: none; }
  .admin { grid-template-columns: minmax(0, 1fr); } .admin > .sidenav { display: none; }
  .page { padding: 16px 16px 40px; }
  .topbar { padding: 0 12px; } .topbar .search .kbd, .topbar .btn { display: none; }
  .page-head > .row { flex-wrap: wrap; }
  .input-icon[style*="width"] { width: 100% !important; }
}
/* Lưới bảo vệ màn hẹp cho trang desktop: lưới khai inline gập 1 cột; bảng ngoài .table-wrap tự cuộn. */
@media (max-width: 900px) {
  .content [style*="grid-template-columns"], .site-main [style*="grid-template-columns"] { grid-template-columns: minmax(0, 1fr) !important; }
  .content table:not(.table-wrap table), .site-main table:not(.table-wrap table) { display: block; overflow-x: auto; max-width: 100%; }
  .content .row.wrap > *, .content .stack > * { min-width: 0; max-width: 100%; }
  .content .grid > * { min-width: 0; }
  .content [style*="width:"][class*="card"], .content .sheet-right { max-width: 100%; }
  .sheet-right { width: min(440px, 100%); }
}
.tabs { overflow-x: auto; scrollbar-width: none; } .tabs::-webkit-scrollbar { display: none; } .tab { flex: none; }
@media (max-width: 900px) { .content .row:not(.nowrap), .site-main .row:not(.nowrap) { flex-wrap: wrap; } }
/* Bổ sung sau lượt 60 trang (góp ý của các agent). */
.toast svg { width: 18px; height: 18px; flex: none; }
.admin { background: linear-gradient(to right, var(--surface-2) 255px, var(--border) 0 256px, var(--surface) 0); }
.stack > .badge, .stack > .chip, .stack > .draft-tag { align-self: flex-start; }
.stack-8 { gap: 8px; }
.input:disabled, .select:disabled, .textarea:disabled, .input[readonly] { background: var(--surface-3); color: var(--muted); cursor: not-allowed; }
.table.dense th { padding: 8px 12px; } .table.dense td { padding: 8px 12px; font-size: 13px; }
.kv { display: grid; grid-template-columns: minmax(120px, auto) minmax(0, 1fr); gap: 8px 16px; font-size: 14px; } .kv > :nth-child(odd) { color: var(--muted); }

/* Logo thật: không bao giờ tô lại bằng currentColor, không nhét vào ô nền khác. */
svg.vne-mark { flex: none; border-radius: 24%; }
.brand > i, .brand > svg { margin-right: 10px; }

/* ── IA chat-first (01-10): app không còn thanh trên; ô hỏi/tìm nổi DUY NHẤT; avatar chân rail ── */
.app { --top-h: 0px; }
.rail .acct { padding: 6px 0; margin-top: 4px; }
.rail .acct .avatar { --s: 32px; transition: box-shadow .15s var(--ease); }
.rail .acct.on .avatar, .rail .acct:hover .avatar { box-shadow: 0 0 0 2px var(--surface-2), 0 0 0 4px var(--primary); }
.rail .ri.spark { color: var(--coral); }
.rail a.on .ri.spark { color: var(--primary); }
.askpill { position: fixed; right: 20px; bottom: 20px; z-index: 40; display: inline-flex; align-items: center; gap: 10px; height: 48px; padding: 0 10px 0 16px;
  border-radius: var(--r-full); font: 500 14px/1 var(--font); color: var(--muted); cursor: pointer; transition: transform .2s var(--ease), color .15s var(--ease); }
.askpill:hover { color: var(--text); transform: translateY(-1px); }
.askpill svg { width: 18px; height: 18px; }
.askpill .kbd { margin-left: 6px; }
@media (max-width: 900px) { .askpill span:not(.spark) { display: none; } .askpill { width: 48px; padding: 0; justify-content: center; } }
.app .page { padding-bottom: 104px; }

/* ── Tối giản (01-10 bản 2): menu con = tab icon; cài đặt = nút quay lại; ô icon ── */
.subtabs { position: sticky; top: 0; z-index: 5; display: flex; gap: 4px; padding: 12px 32px; overflow-x: auto; scrollbar-width: none;
  background: color-mix(in srgb, var(--surface) 88%, transparent); -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px); border-bottom: 1px solid var(--border); }
.subtabs::-webkit-scrollbar { display: none; }
.subtabs a { display: inline-flex; align-items: center; gap: 8px; height: 40px; padding: 0 14px; border-radius: var(--r-full); color: var(--muted); font-size: 14px; font-weight: 500; white-space: nowrap; text-decoration: none !important; transition: background .15s var(--ease), color .15s var(--ease); }
.subtabs a svg { width: 18px; height: 18px; }
.subtabs a:hover { background: color-mix(in srgb, var(--text) 6%, transparent); color: var(--text); }
.subtabs a.on { background: var(--primary-soft); color: var(--primary); }
.backbar { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; gap: 8px; height: 56px; padding: 0 20px; font-size: 14px; border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 88%, transparent); -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px); }
.backbar .iconbtn { width: 40px; height: 40px; }
.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(124px, 1fr)); gap: 12px; }
.tile { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; min-height: 112px; padding: 16px 8px; border-radius: var(--r-xl);
  background: var(--surface); border: 1px solid var(--border); color: var(--text); font-size: 13.5px; font-weight: 500; text-align: center; text-decoration: none !important; cursor: pointer;
  transition: transform .15s var(--ease), border-color .15s var(--ease), box-shadow .15s var(--ease); position: relative; }
:root[data-theme="dark"] .tile { background: var(--surface-2); }
.tile:hover { transform: translateY(-2px); border-color: var(--border-strong); box-shadow: var(--shadow-2); }
.tile .ti { width: 48px; height: 48px; border-radius: 16px; display: grid; place-items: center; background: var(--surface-3); color: var(--muted); }
.tile .ti svg { width: 24px; height: 24px; }
.tile .count { top: 10px; right: 10px; }
.tc-1 { background: var(--primary-soft) !important; color: var(--primary) !important; } .tc-2 { background: var(--success-soft) !important; color: var(--success) !important; }
.tc-3 { background: var(--warning-soft) !important; color: var(--warning) !important; } .tc-4 { background: var(--info-soft) !important; color: var(--info) !important; }
.tc-5 { background: var(--danger-soft) !important; color: var(--danger) !important; } .tc-6 { background: color-mix(in srgb, var(--coral) 14%, var(--surface)) !important; color: var(--coral) !important; }
@media (max-width: 900px) { .subtabs { padding: 10px 12px; } .tiles { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; } .tile { min-height: 96px; } }

/* ── Chuyển cảnh: View Transitions (01-10) ──
   • Đổi trang (cross-document, MPA của site này) và đổi trạng thái (same-document, startViewTransition).
   • Chrome tĩnh giữ nguyên chỗ (rail, thanh tab con, nút hỏi) ⇒ chỉ nội dung cross-fade; pill mục đang chọn
     trượt từ mục cũ sang mục mới (shared element). Chỉ opacity/transform ⇒ không layout, không ảnh hưởng INP/CLS.
   • Safari < 18 / Firefox cũ: không hỗ trợ ⇒ đổi tức thì (progressive enhancement). Giảm chuyển động ⇒ tắt. */
@view-transition { navigation: auto; }
.rail { view-transition-name: rail; }
.rail a.on .ri { view-transition-name: rail-pill; }
.m-tabs { view-transition-name: tabs; }
.subtabs { view-transition-name: subtabs; }
.subtabs a.on { view-transition-name: subtab-pill; }
.askpill { view-transition-name: askpill; }
::view-transition-old(root), ::view-transition-new(root) { animation-duration: .22s; animation-timing-function: var(--ease-std); }
::view-transition-new(root) { animation-name: vt-in; } ::view-transition-old(root) { animation-name: vt-out; }
@keyframes vt-in { from { opacity: 0; transform: translateY(6px); } }
@keyframes vt-out { to { opacity: 0; } }
::view-transition-group(*) { animation-duration: .3s; animation-timing-function: var(--ease); }
::view-transition-group(rail), ::view-transition-group(tabs), ::view-transition-group(askpill) { animation-duration: 0s; }
@media (prefers-reduced-motion: reduce) { @view-transition { navigation: none; } ::view-transition-group(*), ::view-transition-old(*), ::view-transition-new(*) { animation: none !important; } }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
/* link nằm giữa câu chữ phải phân biệt không chỉ bằng màu (Lighthouse link-in-text-block) */
p a, .t-caption a, .lede a { text-decoration: underline; text-underline-offset: 2px; text-decoration-thickness: 1px; }