/* Thanh phan trac nghiem dung chung (FE-23). Chi dung bien trong tokens.css, co chu dung rem. */
.qeyebrow { margin: 0; display: inline-flex; align-items: center; gap: 8px; font-size: var(--fs-eyebrow); font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--c-brand-600); }
.qeyebrow__sq { width: 8px; height: 8px; background: var(--c-accent); flex-shrink: 0; }

.qbar { display: block; width: 100%; height: 4px; margin: 14px 0 24px; border: 0; border-radius: 2px; overflow: hidden; background: var(--c-track); appearance: none; -webkit-appearance: none; }
.qbar::-webkit-progress-bar { background: var(--c-track); }
.qbar::-webkit-progress-value { background: var(--c-accent); transition: width .4s ease; }
.qbar::-moz-progress-bar { background: var(--c-accent); }

.qsit { margin-bottom: 16px; padding: 14px 16px; background: var(--c-bg-soft); border-radius: var(--radius-sm); }
.qsit b { display: block; margin-bottom: 4px; font-size: 0.75rem; letter-spacing: .12em; text-transform: uppercase; color: var(--c-brand-600); }

.qtitle { margin: 0 0 20px; font-size: var(--fs-question); line-height: 1.4; font-weight: 700; letter-spacing: -.01em; outline: none; overflow-wrap: anywhere; }

.qopts { display: flex; flex-direction: column; gap: 10px; }
.qopts--duo { flex-direction: row; flex-wrap: wrap; }
.qopts--duo .qopt { flex: 1 1 14rem; width: auto; }

.qopt {
  display: flex; flex-wrap: wrap; align-items: flex-start; gap: 14px; width: 100%; text-align: left;
  font: inherit; font-size: 1.03125rem; line-height: 1.5; color: var(--c-text);
  background: var(--c-bg); border: 1px solid var(--c-border); border-radius: var(--radius);
  padding: 12px 16px 12px 12px; cursor: pointer;
  transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.qopt .ql { width: 36px; height: 36px; border-radius: var(--radius-sm); background: var(--c-bg-soft); color: var(--c-brand); display: grid; place-items: center; font-weight: 800; flex-shrink: 0; transition: background .2s ease, color .2s ease; }
.qopt .qt { align-self: center; flex: 1 1 8rem; min-width: 0; overflow-wrap: anywhere; }
.qopt:hover:not(:disabled) { border-color: var(--c-accent); transform: translateY(-2px); box-shadow: 0 10px 24px rgba(30, 30, 30, .1); }
.qopt:hover:not(:disabled) .ql { background: var(--c-tint); }
.qopt:focus-visible, .qdot:focus-visible, .qnav:focus-visible, .qrow:focus-visible { outline: 2px solid var(--c-accent); outline-offset: 2px; }
.qopt:disabled { cursor: default; }
.qopt.right { border-color: var(--c-ok); background: var(--c-ok-bg); }
.qopt.right .ql { background: var(--c-ok); color: #fff; }
.qopt.wrong { border-color: var(--c-danger); background: var(--c-tint); }
.qopt.wrong .ql { background: var(--c-danger); color: #fff; }
.qopt.dim { color: var(--c-text-4); }

.qmark { align-self: center; display: inline-flex; align-items: center; gap: 6px; font-weight: 700; font-size: 0.84375rem; white-space: nowrap; }
.qmark--ok { color: var(--c-ok); }
.qmark--no { color: var(--c-danger); }
.qmark--idle { color: var(--c-text-4); }

.qresult { margin-top: 24px; padding-top: 22px; border-top: 1px solid var(--c-border); display: flex; flex-direction: column; gap: 14px; }
.qresult__head { margin: 0; font-size: var(--fs-lead); outline: none; }
.qok { color: var(--c-ok); }
.qno { color: var(--c-danger); }
.qexp { display: flex; flex-direction: column; gap: 6px; }
.qexp p { margin: 0; padding: 12px 14px; border-radius: var(--radius-sm); font-size: 0.96875rem; color: var(--c-text-2); overflow-wrap: anywhere; }
.qexp p.isans { background: var(--c-ok-bg); color: var(--c-text); }
.qsafe { background: var(--c-brand); color: #fff; border-radius: var(--radius); padding: 18px 20px; font-size: 0.96875rem; overflow-wrap: anywhere; }
.qsafe b { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; font-size: 0.78125rem; letter-spacing: .12em; text-transform: uppercase; color: var(--c-on-brand-accent); }

.qnav {
  font: inherit; font-weight: 700; font-size: 0.9375rem; height: 48px; padding: 0 20px; border-radius: var(--radius-sm);
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; cursor: pointer; text-decoration: none;
  transition: background .2s ease, border-color .2s ease;
}
.qnav.o { background: var(--c-bg); color: var(--c-brand); border: 1px solid var(--c-border); }
.qnav.o:hover:not(:disabled) { border-color: var(--c-brand); background: var(--c-tint); }
.qnav.f { background: var(--c-brand); color: #fff; border: 0; padding: 0 24px; }
.qnav.f:hover:not(:disabled) { background: var(--c-brand-600); }
.qnav:disabled, .qnav.f:disabled { background: var(--c-disabled); color: var(--c-text-4); border-color: transparent; cursor: not-allowed; }

.qdots { display: flex; flex-wrap: wrap; gap: 10px; }
.qdot {
  width: 44px; height: 44px; position: relative; font: inherit; font-weight: 800; font-size: 0.9375rem; color: var(--c-text);
  background: var(--c-bg); border: 1px solid var(--c-border); border-radius: var(--radius-sm); cursor: pointer;
  transition: border-color .2s ease, background .2s ease, transform .2s ease;
}
.qdot:hover { border-color: var(--c-accent); transform: translateY(-2px); }
.qdot[aria-current="true"] { background: var(--c-brand); border-color: var(--c-brand); color: #fff; }
.qdot.ok::after, .qdot.no::after { content: ""; position: absolute; right: -5px; top: -5px; width: 12px; height: 12px; border-radius: 50%; border: 2px solid #fff; }
.qdot.ok::after { background: var(--c-ok); }
.qdot.no::after { background: var(--c-danger); }

.qrow {
  display: flex; align-items: center; gap: 14px; width: 100%; text-align: left; font: inherit; color: var(--c-text);
  background: var(--c-bg); border: 1px solid var(--c-border); border-radius: var(--radius); padding: 12px 16px 12px 12px; cursor: pointer;
  transition: border-color .2s ease, transform .2s ease;
}
.qrow:hover { border-color: var(--c-accent); transform: translateX(4px); }
.qrow__n { width: 36px; height: 36px; border-radius: var(--radius-sm); background: var(--c-bg-soft); color: var(--c-brand); display: grid; place-items: center; font-weight: 800; flex-shrink: 0; }
.qrow__body { flex: 1; min-width: 0; }
.qrow__meta { display: block; font-size: 0.78125rem; color: var(--c-text-4); }
.qrow__q { display: block; font-size: 0.96875rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.qin { animation: qin .35s ease both; }
@keyframes qin { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

@media (max-width: 480px) {
  /* Nhan "Dap an phu hop"/"Ban chon" xuong dong duoi noi dung, thang hang voi chu */
  .qopt .qmark { flex-basis: 100%; padding-left: 50px; }
  .qopts--duo .qopt { flex-basis: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  .qopt, .qdot, .qrow, .qbar::-webkit-progress-value { transition: none; }
  .qopt:hover:not(:disabled), .qdot:hover, .qrow:hover { transform: none; }
  .qin { animation: none; }
}