:root {
  --g: #0f6e56; --g-d: #0a5543; --g-l: #e6f3ef; --g-m: #c5e3d9;
  --gold: #f6c453; --red: #b42318; --red-l: #fdecea; --amber: #b54708; --amber-l: #fff4e5; --blue: #175cd3; --blue-l: #eaf1fe;
  --bg: #f3f5f4; --card: #fff; --ink: #1d2523; --mute: #62706c; --line: #dde4e1; --r: 10px;
  --sh: 0 1px 2px rgba(16,40,34,.06), 0 2px 8px rgba(16,40,34,.05);
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font: 15px/1.5 -apple-system, "Segoe UI", Roboto, Arial, sans-serif; background: var(--bg); color: var(--ink); }
button, input, select, textarea { font: inherit; color: inherit; }
.boot { padding: 40px; text-align: center; color: var(--mute); }
.hidden { display: none !important; }
a { color: var(--blue); }

/* ---- khung ---- */
.topbar { background: var(--g); color: #fff; position: sticky; top: 0; z-index: 30; display: flex; align-items: center; gap: 14px; padding: 10px 18px; box-shadow: 0 1px 0 rgba(0,0,0,.15); }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; min-width: 0; }
.brand .logo { width: 30px; height: 30px; border-radius: 8px; background: #fff2; display: grid; place-items: center; flex: none; }
.brand span { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.top-right { margin-left: auto; display: flex; align-items: center; gap: 10px; font-size: 13px; }
.chip { display: inline-flex; align-items: center; gap: 5px; padding: 2px 10px; border-radius: 99px; font-size: 12.5px; font-weight: 600; background: var(--g-l); color: var(--g-d); white-space: nowrap; }
.chip.gold { background: #fff3cf; color: #7a5a00; } .chip.red { background: var(--red-l); color: var(--red); }
.chip.amber { background: var(--amber-l); color: var(--amber); } .chip.blue { background: var(--blue-l); color: var(--blue); } .chip.gray { background: #eceff0; color: #4a5653; }
.topbar .chip { background: #ffffff26; color: #fff; }
.navbar { background: #fff; border-bottom: 1px solid var(--line); display: flex; gap: 2px; padding: 0 14px; overflow-x: auto; position: sticky; top: 51px; z-index: 20; }
.navbar a { padding: 12px 14px; text-decoration: none; color: var(--mute); font-weight: 600; white-space: nowrap; border-bottom: 3px solid transparent; cursor: pointer; }
.navbar a:hover { color: var(--g); } .navbar a.on { color: var(--g); border-color: var(--g); }
.wrap { max-width: 1240px; margin: 0 auto; padding: 18px 16px 90px; }
.wrap.narrow { max-width: 880px; }
h2 { font-size: 20px; margin: 0 0 12px; } h3 { font-size: 16px; margin: 0 0 8px; }
.sub { color: var(--mute); font-size: 13.5px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); box-shadow: var(--sh); padding: 16px; margin-bottom: 14px; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.row.sp { justify-content: space-between; } .grow { flex: 1; min-width: 0; }
.grid { display: grid; gap: 12px; } .g2 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); } .g4 { grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); }

/* ---- nút / form ---- */
.btn { border: 1px solid var(--line); background: #fff; border-radius: 8px; padding: 8px 14px; cursor: pointer; font-weight: 600; white-space: nowrap; }
.btn:hover { background: #f4f7f6; } .btn:disabled { opacity: .5; cursor: not-allowed; }
.btn.pri { background: var(--g); border-color: var(--g); color: #fff; } .btn.pri:hover { background: var(--g-d); }
.btn.dan { color: var(--red); border-color: #f2c5c0; } .btn.sm { padding: 4px 10px; font-size: 13px; } .btn.gold { background: var(--gold); border-color: var(--gold); color: #3d2e00; }
input[type=text], input[type=password], input[type=url], input[type=search], select, textarea { width: 100%; border: 1px solid #c8d2cf; border-radius: 8px; padding: 8px 10px; background: #fff; }
input:focus, select:focus, textarea:focus { outline: 2px solid #8fd0bb; border-color: var(--g); }
textarea { resize: vertical; min-height: 54px; }
label.f { display: block; font-size: 13px; font-weight: 600; color: var(--mute); margin-bottom: 4px; }
.field { margin-bottom: 12px; }
input.num { width: 78px; text-align: right; font-weight: 700; font-variant-numeric: tabular-nums; padding: 7px 8px; }
input.bad { border-color: var(--red); background: var(--red-l); }
.msg { padding: 10px 12px; border-radius: 8px; margin-bottom: 12px; font-size: 14px; }
.msg.err { background: var(--red-l); color: var(--red); } .msg.info { background: var(--blue-l); color: #144a9e; } .msg.warn { background: var(--amber-l); color: var(--amber); } .msg.ok { background: var(--g-l); color: var(--g-d); }

/* ---- bảng ---- */
.tbl-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r); background: #fff; }
table { border-collapse: collapse; width: 100%; font-size: 14px; }
th, td { padding: 8px 10px; border-bottom: 1px solid #edf1ef; text-align: left; vertical-align: middle; }
th { background: #f6f9f8; font-size: 12.5px; text-transform: none; color: var(--mute); position: sticky; top: 0; white-space: nowrap; cursor: default; }
th.s { cursor: pointer; } th.s:hover { color: var(--g); }
td.n, th.n { text-align: right; font-variant-numeric: tabular-nums; }
tr.click { cursor: pointer; } tr.click:hover td { background: #f4faf7; }
.pos { color: #067647; font-weight: 700; } .neg { color: var(--red); font-weight: 700; }
.bar { height: 7px; background: #e4ebe8; border-radius: 9px; overflow: hidden; min-width: 70px; } .bar i { display: block; height: 100%; background: var(--g); }
.stat { padding: 14px; border-radius: var(--r); background: #fff; border: 1px solid var(--line); }
.stat b { display: block; font-size: 26px; line-height: 1.1; } .stat span { color: var(--mute); font-size: 13px; }

/* ---- đăng nhập ---- */
.login { min-height: 100vh; display: grid; place-items: center; padding: 20px; background: linear-gradient(160deg, #0f6e56, #0a4a3b); }
.login .box { background: #fff; border-radius: 16px; padding: 28px; width: 100%; max-width: 390px; box-shadow: 0 20px 60px rgba(0,0,0,.25); }
.login h1 { font-size: 21px; margin: 0 0 4px; color: var(--g-d); }

/* ---- chấm điểm (cơ sở) ---- */
.scorehead { background: var(--g); color: #fff; border-radius: var(--r); padding: 16px 18px; margin-bottom: 14px; display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.scorehead h2 { margin: 0; color: #fff; } .scorehead .big { font-size: 34px; font-weight: 800; line-height: 1; } .scorehead .big small { font-size: 15px; opacity: .8; font-weight: 600; }
.stepper { display: flex; gap: 4px; flex-wrap: wrap; margin-bottom: 14px; }
.step { flex: 1; min-width: 120px; padding: 8px 10px; border-radius: 8px; background: #e9eeec; color: var(--mute); font-size: 13px; font-weight: 600; text-align: center; }
.step.done { background: var(--g-m); color: var(--g-d); } .step.on { background: var(--g); color: #fff; }
details.grp { background: #fff; border: 1px solid var(--line); border-radius: var(--r); margin-bottom: 10px; box-shadow: var(--sh); }
details.grp > summary { padding: 12px 14px; cursor: pointer; font-weight: 700; display: flex; gap: 10px; align-items: center; list-style: none; flex-wrap: wrap; }
details.grp > summary::-webkit-details-marker { display: none; }
details.grp > summary::before { content: "▸"; color: var(--g); transition: transform .15s; } details.grp[open] > summary::before { transform: rotate(90deg); }
.grp-score { margin-left: auto; font-variant-numeric: tabular-nums; color: var(--g-d); font-weight: 700; white-space: nowrap; }
.sec { padding: 8px 14px; background: #f3f8f6; font-weight: 600; font-size: 14px; border-top: 1px solid #e3ece8; }
.crit { display: grid; grid-template-columns: 1fr auto; gap: 8px 14px; padding: 10px 14px; border-top: 1px solid #edf1ef; align-items: start; }
.crit .code { font-size: 12px; color: var(--mute); font-weight: 700; margin-right: 6px; }
.crit .ctl { display: flex; align-items: center; gap: 6px; white-space: nowrap; } .crit .ctl .mx { color: var(--mute); font-size: 13px; }
.crit .extra { grid-column: 1 / -1; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.crit.filled { background: #fbfefd; } .crit.miss { box-shadow: inset 3px 0 0 var(--amber); }
.linkbtn { background: none; border: 0; color: var(--blue); cursor: pointer; padding: 0; font-size: 13px; }
.fb { grid-column: 1 / -1; font-size: 13.5px; padding: 6px 10px; border-radius: 8px; background: var(--amber-l); color: #7a3a05; }
.sticky-bar { position: fixed; left: 0; right: 0; bottom: 0; background: #fff; border-top: 1px solid var(--line); padding: 10px 16px; display: flex; gap: 10px; align-items: center; z-index: 25; box-shadow: 0 -4px 14px rgba(0,0,0,.06); }
.sticky-bar .inner { max-width: 1240px; margin: 0 auto; width: 100%; display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

/* ---- thẩm định ---- */
.rv { display: grid; grid-template-columns: minmax(0, 1fr) 210px 280px; gap: 10px 14px; padding: 10px 14px; border-top: 1px solid #edf1ef; align-items: start; }
.rv .unitbox { background: #f6f9f8; border-radius: 8px; padding: 8px 10px; font-size: 13.5px; }
.rv .unitbox b { font-size: 18px; } .rv.diff { background: #fffaf0; box-shadow: inset 3px 0 0 var(--amber); } .rv.pending { box-shadow: inset 3px 0 0 #b9c7c2; }
.rv .boardbox { display: grid; gap: 6px; }
@media (max-width: 860px) { .rv { grid-template-columns: 1fr; } .crit .extra { grid-template-columns: 1fr; } }

/* ---- hộp thoại / trình chiếu ---- */
.modal { position: fixed; inset: 0; background: rgba(10,25,20,.55); z-index: 60; display: grid; place-items: start center; overflow: auto; padding: 24px 12px; }
.modal .panel { background: #fff; border-radius: 14px; width: 100%; max-width: 1060px; box-shadow: 0 20px 60px rgba(0,0,0,.3); }
.modal .head { display: flex; gap: 10px; align-items: center; padding: 14px 18px; border-bottom: 1px solid var(--line); position: sticky; top: 0; background: #fff; border-radius: 14px 14px 0 0; z-index: 2; flex-wrap: wrap; }
.modal .body { padding: 14px 18px 20px; }
.pres { position: fixed; inset: 0; background: #0b1f1a; color: #eaf6f2; z-index: 80; overflow: auto; padding: 22px 36px 40px; }
.pres h1 { font-size: 30px; margin: 0; } .pres .meta { color: #9fc3b8; font-size: 16px; }
.pres table { font-size: 22px; color: #eaf6f2; } .pres th { background: #12342b; color: #9fc3b8; font-size: 16px; position: static; } .pres td { border-color: #1b4034; padding: 10px 14px; }
.pres tr.click:hover td { background: #143b30; } .pres .pos { color: #6ee7b7; } .pres .neg { color: #fda29b; }
.pres .btn { background: #12342b; border-color: #1f5143; color: #eaf6f2; }
.pres .bar { background: #1b4034; height: 10px; } .pres .bar i { background: #34d399; } .pres .bar i.b { background: var(--gold); }
.pres .final { font-weight: 800; color: #fcd34d; }
.tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 12px; }
.tab { padding: 6px 14px; border-radius: 99px; border: 1px solid var(--line); background: #fff; cursor: pointer; font-weight: 600; font-size: 13.5px; }
.tab.on { background: var(--g); color: #fff; border-color: var(--g); }
#toasts { position: fixed; right: 14px; top: 62px; z-index: 100; display: grid; gap: 8px; }
.toast { background: #1d2523; color: #fff; padding: 10px 16px; border-radius: 10px; box-shadow: 0 6px 20px rgba(0,0,0,.25); max-width: 360px; font-size: 14px; animation: in .2s; }
.toast.err { background: var(--red); } .toast.ok { background: var(--g-d); }
@keyframes in { from { opacity: 0; transform: translateY(-6px); } }
@media (max-width: 640px) {
  .topbar { padding: 8px 12px; } .brand span { max-width: 46vw; } .top-right .hide-sm { display: none; }
  .navbar { top: 47px; } .wrap { padding: 12px 10px 90px; } .scorehead .big { font-size: 28px; }
  .pres { padding: 14px; } .pres table { font-size: 16px; } .pres h1 { font-size: 22px; }
}
@media print { .topbar, .navbar, .sticky-bar, .btn, #toasts { display: none !important; } body { background: #fff; } }

.topbar .btn { background: #ffffff1f; border-color: #ffffff40; color: #fff; } .topbar .btn:hover { background: #ffffff33; }
.pres .tab { background: #12342b; border-color: #1f5143; color: #cfe8df; } .pres .tab.on { background: var(--g); color: #fff; }
@media (max-width: 640px) { .topbar .chip { display: none; } .top-right { gap: 6px; } .topbar .btn.sm { padding: 4px 8px; font-size: 12px; } }