/* AI Tài chính K02 — bảng màu từ đặc tả mục 2 (đề xuất từ logo CSCĐ, đã chỉnh để dễ đọc) */
:root {
  --primary: #0B3D78; --primary-dark: #082B55; --gold: #F4C542; --red: #C62828; --green: #287845;
  --bg: #F4F7FB; --surface: #FFFFFF; --text: #172B4D; --muted: #526581; --border: #DCE4EF;
  --amber-bg: #FFF6DB; --amber-fg: #5B4300; --red-bg: #FDECEC; --green-bg: #E8F5EC; --blue-bg: #E7F0FB;
  --radius: 12px; --shadow: 0 1px 2px rgba(11,61,120,.08), 0 4px 14px rgba(11,61,120,.06);
  --font: "Be Vietnam Pro", "Noto Sans", -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --nav-w: 248px; --top-h: 64px; --src-w: 420px;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body { font-family: var(--font); font-size: 15.5px; line-height: 1.6; color: var(--text); background: var(--bg); -webkit-text-size-adjust: 100%; }
h1, h2, h3 { line-height: 1.3; margin: 0 0 .5em; color: var(--primary-dark); }
h1 { font-size: 1.45rem; } h2 { font-size: 1.15rem; } h3 { font-size: 1rem; }
a { color: var(--primary); }
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 3px solid var(--gold); outline-offset: 2px; border-radius: 6px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.muted { color: var(--muted); } .small { font-size: .86rem; } .right { margin-left: auto; } .nowrap { white-space: nowrap; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; } .col { display: flex; flex-direction: column; gap: 10px; }
.grow { flex: 1; min-width: 0; }
[hidden] { display: none !important; }

/* Nút */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; min-height: 44px; padding: 8px 16px; border-radius: 10px; border: 1px solid var(--border); background: var(--surface); cursor: pointer; font-weight: 600; text-decoration: none; color: var(--primary-dark); }
.btn:hover { border-color: var(--primary); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; } .btn.primary:hover { background: var(--primary-dark); }
.btn.gold { background: var(--gold); border-color: var(--gold); color: var(--primary-dark); }
.btn.danger { color: var(--red); border-color: #E9B4B4; } .btn.danger:hover { background: var(--red-bg); }
.btn.sm { min-height: 36px; padding: 4px 12px; font-size: .9rem; } .btn.icon { padding: 8px 12px; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
.link { background: none; border: 0; padding: 0; color: var(--primary); text-decoration: underline; cursor: pointer; font-weight: 600; }
input[type=text], input[type=password], input[type=date], input[type=url], input[type=number], input[type=search], select, textarea { width: 100%; min-height: 44px; padding: 9px 12px; border: 1px solid var(--border); border-radius: 10px; background: #fff; }
textarea { resize: vertical; }
label { font-weight: 600; font-size: .9rem; display: block; margin-bottom: 4px; }
.field { margin-bottom: 12px; }

/* Khung ứng dụng */
.app { display: grid; grid-template-columns: var(--nav-w) 1fr; grid-template-rows: var(--top-h) 1fr; height: 100vh; height: 100dvh; }
.top { grid-column: 1 / -1; display: flex; align-items: center; gap: 12px; padding: 0 16px; background: var(--primary); color: #fff; border-bottom: 3px solid var(--gold); }
.top .title { font-weight: 700; font-size: 1.05rem; }
.top .badge { background: rgba(255,255,255,.14); border-radius: 999px; padding: 2px 10px; font-size: .8rem; }
.top .btn { background: rgba(255,255,255,.12); color: #fff; border-color: rgba(255,255,255,.3); }
.nav { background: var(--surface); border-right: 1px solid var(--border); overflow-y: auto; padding: 12px; display: flex; flex-direction: column; gap: 2px; }
.nav .brand { display: flex; align-items: center; gap: 10px; padding: 6px 8px 14px; }
.nav .brand img { width: 44px; height: auto; display: block; }
.nav .brand b { font-size: .95rem; color: var(--primary-dark); line-height: 1.25; }
.nav h4 { margin: 14px 8px 4px; font-size: .74rem; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.nav a { display: flex; align-items: center; gap: 8px; min-height: 44px; padding: 8px 12px; border-radius: 10px; color: var(--text); text-decoration: none; font-weight: 500; }
.nav a:hover { background: var(--bg); }
.nav a[aria-current=page] { background: var(--blue-bg); color: var(--primary-dark); font-weight: 700; box-shadow: inset 3px 0 0 var(--primary); }
.nav .count { margin-left: auto; background: var(--gold); color: var(--primary-dark); border-radius: 999px; padding: 0 8px; font-size: .78rem; font-weight: 700; }
.main { overflow-y: auto; position: relative; }
.page { max-width: 1100px; margin: 0 auto; padding: 20px 20px 80px; }
.page.narrow { max-width: 900px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; box-shadow: var(--shadow); }
.card + .card { margin-top: 14px; }
.grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.tabs { display: flex; gap: 6px; flex-wrap: wrap; border-bottom: 1px solid var(--border); margin-bottom: 14px; }
.tab { min-height: 44px; padding: 8px 14px; background: none; border: 0; border-bottom: 3px solid transparent; cursor: pointer; font-weight: 600; color: var(--muted); }
.tab[aria-selected=true] { color: var(--primary-dark); border-bottom-color: var(--primary); }

/* Nhãn trạng thái: luôn có chữ kèm biểu tượng */
.chip { display: inline-flex; align-items: center; gap: 4px; padding: 1px 9px; border-radius: 999px; font-size: .8rem; font-weight: 600; white-space: nowrap; border: 1px solid transparent; }
.chip.green { background: var(--green-bg); color: var(--green); border-color: #BFE0CA; }
.chip.amber { background: var(--amber-bg); color: var(--amber-fg); border-color: #EBD28A; }
.chip.red { background: var(--red-bg); color: var(--red); border-color: #F0BABA; }
.chip.blue { background: var(--blue-bg); color: var(--primary); border-color: #BFD5EF; }
.chip.gray { background: #EEF1F6; color: var(--muted); border-color: var(--border); }
.banner { display: flex; gap: 10px; align-items: flex-start; padding: 10px 14px; border-radius: 10px; border: 1px solid; margin: 8px 0; }
.banner.amber { background: var(--amber-bg); color: var(--amber-fg); border-color: #EBD28A; }
.banner.red { background: var(--red-bg); color: #7C1414; border-color: #F0BABA; }
.banner.blue { background: var(--blue-bg); color: var(--primary-dark); border-color: #BFD5EF; }
.banner.green { background: var(--green-bg); color: #194C2C; border-color: #BFE0CA; }
.banner .ico { font-weight: 800; }

/* Bảng */
.table-wrap { overflow-x: auto; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th, td { padding: 9px 12px; text-align: left; border-bottom: 1px solid var(--border); vertical-align: top; }
th { background: #F8FAFD; font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); position: sticky; top: 0; }
tr:last-child td { border-bottom: 0; }
tr.clickable { cursor: pointer; } tr.clickable:hover td { background: #F8FAFD; }

/* Hỏi đáp */
.chat { display: flex; flex-direction: column; height: 100%; }
.chat-scroll { flex: 1; overflow-y: auto; padding: 20px 16px 8px; }
.chat-inner { max-width: 900px; margin: 0 auto; }
.welcome { text-align: center; padding: 28px 8px 10px; }
.welcome img { width: 64px; height: auto; }
.welcome h1 { margin-top: 8px; font-size: 1.6rem; }
.suggest { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 10px; margin: 18px 0; text-align: left; }
.suggest button { text-align: left; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--border); background: var(--surface); cursor: pointer; min-height: 56px; box-shadow: var(--shadow); font-weight: 500; }
.suggest button:hover { border-color: var(--primary); }
.msg { margin: 16px 0; display: flex; }
.msg.user { justify-content: flex-end; }
.bubble-user { background: var(--primary); color: #fff; padding: 10px 16px; border-radius: 16px 16px 4px 16px; max-width: 85%; white-space: pre-wrap; overflow-wrap: anywhere; }
.answer { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; width: 100%; box-shadow: var(--shadow); }
.answer h3 { font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin: 16px 0 6px; }
.answer h3:first-child { margin-top: 0; }
.conclusion { border-left: 4px solid var(--gold); padding: 6px 0 6px 12px; font-weight: 600; background: #FFFCF0; border-radius: 0 8px 8px 0; }
.claim { margin: 6px 0; }
.tag { font-size: .7rem; font-weight: 700; padding: 0 6px; border-radius: 4px; background: #EEF1F6; color: var(--muted); margin-right: 6px; vertical-align: middle; }
.cite { display: inline-flex; align-items: center; justify-content: center; min-width: 24px; height: 24px; padding: 0 6px; margin: 0 2px; border-radius: 6px; border: 1px solid var(--primary); background: var(--blue-bg); color: var(--primary-dark); font-weight: 700; font-size: .8rem; cursor: pointer; vertical-align: baseline; }
.cite:hover { background: var(--primary); color: #fff; }
.cite-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.cite-item { border: 1px solid var(--border); border-radius: 10px; padding: 8px 12px; background: #FAFBFE; }
.quote { font-style: italic; color: var(--muted); border-left: 3px solid var(--border); padding-left: 10px; margin-top: 4px; font-size: .9rem; }
.actions { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; padding-top: 12px; border-top: 1px dashed var(--border); }
.stage { display: flex; align-items: center; gap: 10px; color: var(--muted); }
.spinner { width: 18px; height: 18px; border: 3px solid var(--border); border-top-color: var(--primary); border-radius: 50%; animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .spinner { animation: none; } }
.composer { border-top: 1px solid var(--border); background: var(--surface); padding: 10px 16px 14px; }
.composer-inner { max-width: 900px; margin: 0 auto; }
.composer textarea { min-height: 54px; max-height: 180px; }
.opts { display: flex; gap: 10px; flex-wrap: wrap; align-items: end; margin-bottom: 8px; font-size: .86rem; }
.opts > div { min-width: 140px; } .opts label { font-size: .78rem; margin-bottom: 2px; color: var(--muted); }
.opts input, .opts select { min-height: 38px; padding: 4px 8px; }
.pill-scope { display: inline-flex; align-items: center; gap: 6px; background: var(--blue-bg); border: 1px solid #BFD5EF; border-radius: 999px; padding: 2px 10px; font-size: .82rem; }

/* Ngăn nguồn bên phải */
.src { position: fixed; top: var(--top-h); right: 0; bottom: 0; width: var(--src-w); max-width: 100vw; background: var(--surface); border-left: 1px solid var(--border); box-shadow: -6px 0 24px rgba(11,61,120,.12); z-index: 30; display: flex; flex-direction: column; transform: translateX(100%); transition: transform .2s; }
.src.open { transform: none; }
@media (prefers-reduced-motion: reduce) { .src { transition: none; } }
.src-head { display: flex; align-items: center; gap: 8px; padding: 10px 14px; border-bottom: 1px solid var(--border); background: #F8FAFD; }
.src-body { flex: 1; overflow-y: auto; padding: 14px; }
.src mark, .excerpt mark { background: #FFE58A; color: inherit; padding: 0 1px; border-radius: 2px; }
.excerpt { white-space: pre-wrap; overflow-wrap: anywhere; border: 1px solid var(--border); background: #FAFBFE; border-radius: 10px; padding: 10px 12px; font-size: .92rem; max-height: 280px; overflow-y: auto; }
.pdfbox { position: relative; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; margin-top: 8px; background: #fff; }
.pdfbox canvas { display: block; width: 100%; height: auto; }
.pdfbox .hl { position: absolute; background: rgba(255,214,0,.38); outline: 1px solid rgba(180,130,0,.6); mix-blend-mode: multiply; pointer-events: none; }
.kv { display: grid; grid-template-columns: 130px 1fr; gap: 4px 10px; font-size: .9rem; }
.kv dt { color: var(--muted); } .kv dd { margin: 0; overflow-wrap: anywhere; }

/* Đăng nhập */
.login { min-height: 100vh; display: grid; place-items: center; padding: 16px; background: linear-gradient(160deg, var(--primary-dark), var(--primary)); }
.login .box { background: var(--surface); width: 100%; max-width: 400px; border-radius: 16px; padding: 28px; box-shadow: 0 20px 60px rgba(0,0,0,.3); border-top: 5px solid var(--gold); }
.login img { width: 80px; display: block; margin: 0 auto 10px; }
.login h1 { text-align: center; }
.toast { position: fixed; bottom: 18px; left: 50%; transform: translateX(-50%); background: var(--primary-dark); color: #fff; padding: 10px 18px; border-radius: 10px; z-index: 99; max-width: 92vw; box-shadow: var(--shadow); }
.toast.err { background: var(--red); }
dialog { border: 0; border-radius: 14px; padding: 0; max-width: 640px; width: 92vw; box-shadow: 0 20px 60px rgba(0,0,0,.35); }
dialog::backdrop { background: rgba(8,43,85,.5); }
dialog .dlg { padding: 20px; }
.dropzone { border: 2px dashed var(--primary); border-radius: var(--radius); padding: 26px; text-align: center; background: #F8FBFF; }
.dropzone.over { background: var(--blue-bg); }
.progress { height: 10px; border-radius: 6px; background: var(--border); overflow: hidden; } .progress > i { display: block; height: 100%; background: var(--primary); }
.menu-btn { display: none; }
.flag { display: flex; gap: 8px; padding: 8px 10px; border-radius: 8px; border: 1px solid var(--border); margin-bottom: 6px; background: #fff; align-items: flex-start; }
.flag.block { border-color: #F0BABA; background: var(--red-bg); } .flag.warn { border-color: #EBD28A; background: var(--amber-bg); } .flag.done { opacity: .6; background: var(--green-bg); border-color: #BFE0CA; }
.pagegrid { display: flex; flex-wrap: wrap; gap: 4px; }
.pg { width: 34px; height: 30px; display: grid; place-items: center; font-size: .75rem; border-radius: 6px; border: 1px solid var(--border); background: #fff; cursor: pointer; }
.pg.bad { background: var(--amber-bg); border-color: #EBD28A; font-weight: 700; } .pg.empty { background: var(--red-bg); border-color: #F0BABA; }
.stat { font-size: 1.7rem; font-weight: 800; color: var(--primary-dark); }
.mode-note { background: var(--gold); color: var(--primary-dark); font-weight: 700; padding: 4px 14px; text-align: center; font-size: .86rem; }

@media (max-width: 900px) {
  .app { grid-template-columns: 1fr; }
  .menu-btn { display: inline-flex; }
  .nav { position: fixed; top: var(--top-h); left: 0; bottom: 0; width: min(86vw, 300px); z-index: 40; transform: translateX(-102%); transition: transform .2s; box-shadow: 6px 0 24px rgba(0,0,0,.2); }
  .nav.open { transform: none; }
  .scrim { position: fixed; inset: var(--top-h) 0 0 0; background: rgba(8,43,85,.4); z-index: 35; }
  .src { top: 0; width: 100vw; z-index: 60; }
  .top .badge, .top .hide-sm { display: none; }
  .page { padding: 14px 12px 80px; }
  .bubble-user { max-width: 94%; }
  .kv { grid-template-columns: 1fr; } .kv dt { margin-top: 6px; }
}
@media print { .nav, .top, .composer, .src { display: none !important; } }