/* Cong cu "Tinh diem" (lib/cc/tinh-diem.php + assets/cc/tinh-diem.js). Mau theo :root (theme thpt). */
.td-app { max-width: 860px; margin: 0 auto; }
.td-tabs { margin-bottom: 12px; }
.td-tabs .cc-chip { flex: 1 1 auto; text-align: center; }
.td-disc { margin: 0 0 18px; font-size: 13.5px; line-height: 1.5; color: var(--ink2); background: var(--soft); border-radius: 12px; padding: 10px 12px; }
.td-h { font-size: clamp(20px, 3vw, 26px); margin: 4px 0 6px; }
.td-tag { display: inline-block; vertical-align: middle; font-size: 12px; font-weight: 800; background: var(--pri); color: #fff; border-radius: 99px; padding: 2px 9px; letter-spacing: 0; }
.td-lab { font-size: 14px; font-weight: 800; color: var(--ink); margin: 18px 0 8px; }
.td-pane .cc-note { margin: 0 0 6px; }
.td-num { width: 100%; text-align: center; font-weight: 700; }
.cc-f .td-num, .td-txi .td-num, .td-srow .td-num { font: inherit; font-size: 17px; font-weight: 700; color: var(--ink); background: var(--bg); border: 1.5px solid var(--line); border-radius: 12px; padding: 10px 8px; min-width: 0; }
.td-num:focus, .td-sn:focus, .td-ename:focus { outline: 2px solid var(--pri); outline-offset: 1px; border-color: transparent; }
.td-num.bad { border-color: #EF4444 !important; background: #FEF2F2 !important; }
.td-tx { display: grid; grid-template-columns: repeat(auto-fill, minmax(92px, 1fr)); gap: 8px; }
.td-txi { position: relative; }
.td-txi .td-x { position: absolute; right: -6px; top: -8px; width: 24px; height: 24px; border-radius: 50%; border: 1px solid var(--line); background: var(--card); color: var(--ink2); font-size: 16px; line-height: 1; cursor: pointer; display: grid; place-items: center; padding: 0; }
.td-mini { display: flex; flex-wrap: wrap; gap: 8px 10px; align-items: center; margin-top: 10px; }
.td-mini .cc-note { margin: 0; }
.td-grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 14px; }
.td-grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.td-grid2 > *, .td-grid3 > * { min-width: 0; }
.td-k { font-weight: 600; color: var(--pri); font-size: 12.5px; margin-left: 4px; }
.td-exam .cc-f { gap: 6px; }
.td-ename { font: inherit; font-size: 14px; font-weight: 700; color: var(--ink2); background: transparent; border: 0; border-bottom: 1.5px dashed var(--line); padding: 2px 0; min-width: 0; }
.td-prio { margin-top: 14px; max-width: 360px; }
.td-check { display: flex; gap: 8px; align-items: flex-start; margin: 14px 0 0; font-size: 14px; color: var(--ink2); line-height: 1.45; cursor: pointer; }
.td-check input { margin-top: 3px; width: 18px; height: 18px; accent-color: var(--pri); flex: none; }
.td-opts { display: flex; flex-wrap: wrap; gap: 10px 18px; margin: 8px 0 10px; }

/* bang mon */
.td-subj { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 14px; }
.td-srow { display: grid; grid-template-columns: 1fr 78px 24px; gap: 8px; align-items: center; background: var(--bg); border: 1px solid var(--line); border-radius: 12px; padding: 6px 6px 6px 12px; min-width: 0; }
.td-srow .td-num { padding: 8px 4px; background: var(--card); }
.td-sn { font-size: 14.5px; font-weight: 600; color: var(--ink); line-height: 1.3; min-width: 0; overflow-wrap: anywhere; }
input.td-sn { font: inherit; font-size: 14.5px; font-weight: 600; border: 0; border-bottom: 1.5px dashed var(--line); background: transparent; padding: 4px 0; width: 100%; }
.td-srow .td-x { width: 24px; height: 24px; border: 0; background: none; color: var(--ink2); font-size: 20px; line-height: 1; cursor: pointer; padding: 0; }
.td-nx { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 14px; }
.td-nxb { display: flex; justify-content: space-between; align-items: center; gap: 10px; text-align: left; font: inherit; font-size: 14.5px; font-weight: 600; color: var(--ink); background: var(--bg); border: 1.5px solid var(--line); border-radius: 12px; padding: 9px 12px; cursor: pointer; }
.td-nxb b { flex: none; font-size: 13px; padding: 3px 10px; border-radius: 99px; }
.td-nxb.ok b { background: #DCFCE7; color: #166534; }
.td-nxb.no { border-color: #FCA5A5; background: #FEF2F2; }
.td-nxb.no b { background: #FEE2E2; color: #991B1B; }

/* ket qua */
.td-res { margin-top: 20px; }
.td-res:empty { display: none; }
.td-hint { background: var(--bg); border: 1.5px dashed var(--line); color: var(--ink2); border-radius: 14px; padding: 14px; font-size: 15px; }
.td-big { border-radius: 20px; padding: 20px 18px; text-align: center; color: #fff; background: linear-gradient(135deg, var(--pri), color-mix(in srgb, var(--pri) 60%, #000)); animation: tdpop .35s ease-out; }
.td-big.lv3 { background: linear-gradient(135deg, #16A34A, #0E7C3A); }
.td-big.lv2 { background: linear-gradient(135deg, #2563EB, #1D4ED8); }
.td-big.lv1 { background: linear-gradient(135deg, #F59E0B, #D97706); }
.td-big.lv0 { background: linear-gradient(135deg, #EF4444, #B91C1C); }
.td-big-n { font-family: 'Baloo 2', var(--hf), sans-serif; font-size: clamp(46px, 11vw, 72px); font-weight: 800; line-height: 1; }
.td-big-l { margin-top: 6px; font-size: 15px; font-weight: 600; opacity: .95; }
@keyframes tdpop { from { transform: scale(.94); opacity: .3; } to { transform: none; opacity: 1; } }
.td-formula { margin-top: 12px; background: var(--bg); border: 1px solid var(--line); border-radius: 14px; padding: 12px 14px; font-size: 15px; line-height: 1.7; overflow-wrap: anywhere; font-variant-numeric: tabular-nums; }
.td-adj { margin-top: 12px; background: #FFFBEB; border: 1px solid #FDE68A; color: #78350F; border-radius: 14px; padding: 12px 14px; font-size: 14.5px; line-height: 1.55; }
.td-lvs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 12px; }
.td-lv { border: 1.5px solid var(--line); border-radius: 14px; padding: 10px 12px; background: var(--card); min-width: 0; }
.td-lv.pass { border-color: #86EFAC; background: #F0FDF4; }
.td-lv-h { font-weight: 800; font-size: 15px; margin-bottom: 4px; }
.td-lv ul, .td-conds, .td-next ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 3px; }
.td-lv li, .td-conds li { font-size: 13.5px; line-height: 1.4; }
li.y { color: #166534; } li.n { color: #B91C1C; }
.td-conds { margin-top: 12px; gap: 6px; } .td-conds li { font-size: 15px; font-weight: 600; }
.td-next { margin-top: 12px; background: var(--soft); border-radius: 14px; padding: 12px 14px; font-size: 15px; }
.td-next ul { margin-top: 6px; gap: 4px; } .td-next li::before { content: '→ '; color: var(--pri); font-weight: 800; }
.td-next.ok { background: #F0FDF4; color: #166534; font-weight: 700; }
.td-res > .cc-note { margin-top: 10px; }
.td-help { margin-top: 12px; background: var(--bg); border: 1px solid var(--line); border-radius: 14px; padding: 4px 14px; }
.td-help summary { cursor: pointer; font-weight: 700; font-size: 14.5px; padding: 10px 0; color: var(--pri); }
.td-help[open] { padding-bottom: 12px; }
.td-help-in { width: 100%; resize: vertical; }

/* loi moi sau ket qua */
.td-cta { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; border: 1.5px dashed var(--pri); background: linear-gradient(135deg, var(--soft), var(--card)); border-radius: 18px; padding: 14px 16px; }
.td-cta[hidden] { display: none; }
.td-cta-t { display: flex; flex-direction: column; gap: 2px; min-width: 0; flex: 1 1 220px; }
.td-cta-t span { font-size: 14px; color: var(--ink2); }

/* SEO */
.td-seo { max-width: 860px; margin: 40px auto 0; }
.td-seo-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 26px; }
.td-seo-grid > div { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 18px; min-width: 0; }
.td-seo-grid h3 { font-size: 17px; margin-bottom: 8px; }
.td-seo-grid p { font-size: 15px; color: var(--ink2); margin: 0 0 8px; }
.td-f { background: var(--soft); color: var(--ink) !important; font-weight: 700; border-radius: 10px; padding: 8px 10px; font-size: 14.5px !important; }
.td-faq { max-width: none; }

@media (max-width: 760px) {
  .td-subj, .td-nx, .td-lvs, .td-seo-grid { grid-template-columns: 1fr; }
  .td-tabs .cc-chip { flex: 1 1 calc(50% - 8px); padding: 8px 8px; font-size: 13.5px; }
}
@media (max-width: 420px) {
  .td-grid3 { gap: 6px; } .td-grid3 .cc-f { font-size: 13px; }
  .td-grid2 { gap: 8px; }
}
.td-app [hidden] { display: none !important; }