/* Trang khảo sát nhu cầu thuê nhà ở TP.HCM — toàn bộ CSS nằm trong lớp .ksnx */

/* ============================================================
   KSNX — Trang khảo sát nhu cầu thuê nhà ở TP.HCM
   Mọi selector đều nằm trong .ksnx để không đụng theme website
   ============================================================ */

.ksnx *,
.ksnx *::before,
.ksnx *::after { box-sizing: border-box; }

.ksnx {
  --ks-navy:      #0f2f4f;
  --ks-navy-2:    #1a4a76;
  --ks-navy-soft: #e8eef5;
  --ks-red:       #a3232c;
  --ks-gold:      #b8862b;
  --ks-ink:       #1c2531;
  --ks-ink-2:     #4a5666;
  --ks-ink-3:     #6b7787;
  --ks-line:      #dde3ea;
  --ks-line-2:    #eef2f6;
  --ks-bg:        #ffffff;
  --ks-bg-2:      #f6f8fb;
  --ks-radius:    4px;

  --ks-serif: "Noto Serif", "Times New Roman", Times, serif;
  --ks-sans:  "Be Vietnam Pro", -apple-system, BlinkMacSystemFont, "Segoe UI",
              Roboto, "Helvetica Neue", Arial, sans-serif;

  font-family: var(--ks-sans);
  color: var(--ks-ink);
  font-size: 17px;
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
  background: var(--ks-bg);

  /* Đo theo bề rộng CỘT chứa nó, không theo bề rộng màn hình.
     Nhờ vậy trang hiển thị đúng cả khi nằm trong cột hẹp có sidebar
     lẫn khi đặt ở bố cục full-width. */
  container-type: inline-size;
  container-name: ksnx;
}

.ksnx p { margin: 0 0 1.05em; }
.ksnx a { color: var(--ks-navy-2); }
.ksnx strong { font-weight: 600; color: var(--ks-ink); }
.ksnx img { max-width: 100%; height: auto; }

.ksnx h1, .ksnx h2, .ksnx h3, .ksnx h4 {
  font-family: var(--ks-serif);
  color: var(--ks-navy);
  font-weight: 600;
  line-height: 1.28;
  margin: 0;
  letter-spacing: -0.005em;
}

/* ---------- Khung ---------- */
.ksnx__wrap { max-width: 100%; margin: 0 auto; }
.ksnx__inner { max-width: 940px; margin: 0 auto; padding: 0 26px; }
.ksnx__narrow { max-width: 760px; margin: 0 auto; padding: 0 26px; }

/* ---------- Dải nhận diện đơn vị chủ trì ---------- */
.ksnx__topbar {
  background: var(--ks-navy);
  color: #ccd8e4;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 11px 0;
  border-bottom: 3px solid var(--ks-gold);
}
.ksnx__topbar .ksnx__inner {
  display: flex; gap: 14px; align-items: center;
  justify-content: space-between; flex-wrap: wrap;
}
.ksnx__org { display: flex; align-items: center; gap: 12px; font-weight: 500; }
.ksnx__seal {
  width: 26px; height: 26px; flex: 0 0 26px;
  border: 1.5px solid var(--ks-gold); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--ks-gold); font-size: 11px; font-weight: 700;
  font-family: var(--ks-serif); letter-spacing: 0;
}
.ksnx__topbar-right { opacity: .72; font-size: 11.5px; }

/* ---------- Hero ---------- */
.ksnx__hero {
  background:
    linear-gradient(180deg, #103353 0%, #0d2743 100%);
  color: #fff;
  padding: 64px 0 58px;
  position: relative;
  overflow: hidden;
}
.ksnx__hero::after {
  content: ""; position: absolute; right: -140px; top: -120px;
  width: 460px; height: 460px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,.055) 0%, rgba(255,255,255,0) 68%);
  pointer-events: none;
}
.ksnx__hero .ksnx__inner { position: relative; z-index: 1; }

.ksnx__eyebrow {
  display: inline-block;
  font-size: 12px; letter-spacing: 0.13em; text-transform: uppercase;
  color: var(--ks-gold); font-weight: 600;
  padding-bottom: 12px;
}
.ksnx__hero h1 {
  color: #fff;
  font-size: clamp(27px, 4.6cqw, 45px);
  line-height: 1.22;
  max-width: 19ch;
  margin-bottom: 20px;
}
.ksnx__hero h1 .ksnx__rule {
  display: block; width: 62px; height: 3px;
  background: var(--ks-gold); margin-top: 22px;
}
.ksnx__lede {
  font-size: 18.5px; line-height: 1.68;
  color: #d3dfea; max-width: 62ch; margin-bottom: 26px;
}
/* chữ in đậm trên nền tối phải sáng lên, nếu không sẽ chìm vào nền */
.ksnx__hero strong,
.ksnx__closing strong,
.ksnx__formbar strong { color: #ffffff; font-weight: 600; }
.ksnx__hero .ksnx__lede strong { color: #f0d79a; }

.ksnx__facts {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1px; background: rgba(255,255,255,.13);
  border: 1px solid rgba(255,255,255,.13);
  margin: 30px 0 32px;
}
.ksnx__fact { background: #0f2f4f; padding: 17px 18px; }
.ksnx__fact b {
  display: block; font-family: var(--ks-serif);
  font-size: 25px; line-height: 1.2; color: #fff; font-weight: 600;
}
.ksnx__fact span {
  display: block; font-size: 12.5px; line-height: 1.45;
  color: #93a9bf; margin-top: 5px; letter-spacing: .01em;
}

.ksnx__cta { display: flex; gap: 13px; flex-wrap: wrap; align-items: center; }
.ksnx__btn {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 14px 26px; border-radius: var(--ks-radius);
  font-size: 16px; font-weight: 600; text-decoration: none;
  border: 1.5px solid transparent; cursor: pointer;
  transition: background .15s ease, color .15s ease, border-color .15s ease;
}
.ksnx__btn--main { background: var(--ks-gold); color: #221703; border-color: var(--ks-gold); }
.ksnx__btn--main:hover { background: #cf9a37; border-color: #cf9a37; color: #221703; }
.ksnx__btn--ghost { background: transparent; color: #dbe6f0; border-color: rgba(255,255,255,.42); }
.ksnx__btn--ghost:hover { background: rgba(255,255,255,.09); color: #fff; }

/* ---------- Section chung ---------- */
.ksnx__sec { padding: 60px 0; border-bottom: 1px solid var(--ks-line-2); }
.ksnx__sec--alt { background: var(--ks-bg-2); }
.ksnx__sec:last-of-type { border-bottom: 0; }

.ksnx__kicker {
  font-size: 12px; letter-spacing: .13em; text-transform: uppercase;
  color: var(--ks-red); font-weight: 700; margin-bottom: 11px;
}
.ksnx__sec h2 {
  font-size: clamp(21px, 3.1cqw, 30px);
  margin-bottom: 8px;
}
.ksnx__sec h2 + .ksnx__sub {
  color: var(--ks-ink-3); font-size: 16px; max-width: 66ch; margin-bottom: 30px;
}
.ksnx__sec h3 { font-size: 18.5px; margin-bottom: 8px; }
.ksnx__body { max-width: 68ch; color: var(--ks-ink-2); }
.ksnx__body p { margin-bottom: 1.1em; }

/* ---------- Trích dẫn / lời mời ---------- */
.ksnx__pull {
  border-left: 3px solid var(--ks-gold);
  padding: 4px 0 4px 24px;
  margin: 30px 0;
  font-family: var(--ks-serif);
  font-size: 20px; line-height: 1.62; color: var(--ks-navy);
}
.ksnx__pull cite {
  display: block; margin-top: 12px; font-family: var(--ks-sans);
  font-size: 13.5px; font-style: normal; color: var(--ks-ink-3); letter-spacing: .01em;
}

/* ---------- Căn cứ pháp lý ---------- */
.ksnx__legal { display: grid; gap: 0; margin-top: 28px; border-top: 1px solid var(--ks-line); }
.ksnx__legal-row {
  display: grid; grid-template-columns: 232px 1fr; gap: 26px;
  padding: 20px 0; border-bottom: 1px solid var(--ks-line);
}
.ksnx__legal-doc {
  font-family: var(--ks-serif); font-size: 16px; font-weight: 600;
  color: var(--ks-navy); line-height: 1.42;
}
.ksnx__legal-doc small {
  display: block; font-family: var(--ks-sans); font-weight: 400;
  font-size: 12.5px; color: var(--ks-ink-3); margin-top: 3px; letter-spacing: .02em;
}
.ksnx__legal-txt { color: var(--ks-ink-2); font-size: 15.5px; line-height: 1.65; }

/* ---------- 3 nhóm đối tượng ---------- */
.ksnx__grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 4px; }
.ksnx__card {
  background: #fff; border: 1px solid var(--ks-line);
  border-top: 3px solid var(--ks-navy);
  padding: 26px 24px 24px; border-radius: var(--ks-radius);
  display: flex; flex-direction: column;
}
.ksnx__card--2 { border-top-color: var(--ks-gold); }
.ksnx__card--3 { border-top-color: var(--ks-red); }
.ksnx__badge {
  display: inline-block; font-size: 11.5px; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase;
  color: var(--ks-ink-3); margin-bottom: 10px;
}
.ksnx__card ul { margin: 12px 0 0; padding-left: 18px; color: var(--ks-ink-2); font-size: 15px; }
.ksnx__card li { margin-bottom: 6px; }
.ksnx__card p { font-size: 15.2px; color: var(--ks-ink-2); margin-bottom: 0; }

/* ---------- Cấu trúc phiếu ---------- */
.ksnx__parts { margin-top: 26px; border-top: 1px solid var(--ks-line); }
.ksnx__part {
  display: grid; grid-template-columns: 56px 1fr auto; gap: 20px;
  align-items: baseline; padding: 17px 0;
  border-bottom: 1px solid var(--ks-line);
}
.ksnx__part-no {
  font-family: var(--ks-serif); font-size: 19px; font-weight: 600;
  color: var(--ks-gold);
}
.ksnx__part-name { font-weight: 600; color: var(--ks-navy); font-size: 16.5px; }
.ksnx__part-name span {
  display: block; font-weight: 400; font-size: 14.5px;
  color: var(--ks-ink-3); margin-top: 2px; line-height: 1.55;
}
.ksnx__part-q {
  font-size: 13px; color: var(--ks-ink-3); white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

/* ---------- Cam kết dữ liệu ---------- */
.ksnx__privacy {
  background: #fff; border: 1px solid var(--ks-line);
  border-left: 3px solid var(--ks-navy);
  padding: 28px 30px; border-radius: var(--ks-radius);
}
.ksnx__privacy ul { margin: 0; padding-left: 20px; }
.ksnx__privacy li { margin-bottom: 10px; color: var(--ks-ink-2); }
.ksnx__privacy li:last-child { margin-bottom: 0; }

/* ---------- Khối form ---------- */
.ksnx__sec--form { background: var(--ks-navy-soft); border-bottom: 0; }
.ksnx__formbox {
  background: #fff; border: 1px solid #c8d5e2;
  border-radius: var(--ks-radius); overflow: hidden;
  box-shadow: 0 2px 14px rgba(15,47,79,.08);
}
.ksnx__formbar {
  display: flex; justify-content: space-between; align-items: center;
  gap: 14px; flex-wrap: wrap;
  padding: 13px 20px; background: var(--ks-navy); color: #d7e3ee;
  font-size: 13.5px;
}
.ksnx__dot {
  display: inline-block; width: 8px; height: 8px; border-radius: 50%;
  background: #4ec27a; margin-right: 8px; vertical-align: 0px;
}
.ksnx__formbar a { color: #fff; text-decoration: underline; text-underline-offset: 3px; }
.ksnx__iframe { display: block; width: 100%; height: 1400px; border: 0; }
.ksnx__fallback {
  padding: 16px 20px; background: #fafbfc; border-top: 1px solid var(--ks-line);
  font-size: 14px; color: var(--ks-ink-3);
}

/* ---------- FAQ ---------- */
.ksnx__faq details {
  border-bottom: 1px solid var(--ks-line);
  padding: 0;
}
.ksnx__faq details[open] { background: #fafbfd; }
.ksnx__faq summary {
  cursor: pointer; list-style: none; padding: 18px 40px 18px 2px;
  font-weight: 600; color: var(--ks-navy); font-size: 16.5px;
  position: relative; font-family: var(--ks-serif);
}
.ksnx__faq summary::-webkit-details-marker { display: none; }
.ksnx__faq summary::after {
  content: "+"; position: absolute; right: 8px; top: 50%;
  transform: translateY(-50%); font-size: 21px; font-weight: 400;
  color: var(--ks-gold); font-family: var(--ks-sans); line-height: 1;
}
.ksnx__faq details[open] summary::after { content: "\2212"; }
.ksnx__faq .ksnx__ans {
  padding: 0 40px 20px 2px; color: var(--ks-ink-2); font-size: 15.5px;
  max-width: 74ch;
}
.ksnx__faq .ksnx__ans p:last-child { margin-bottom: 0; }

/* ---------- Kết ---------- */
.ksnx__closing {
  background: var(--ks-navy); color: #cfdce8; padding: 52px 0; text-align: center;
}
.ksnx__closing h2 { color: #fff; font-size: 26px; margin-bottom: 12px; }
.ksnx__closing p { max-width: 58ch; margin: 0 auto 24px; color: #a9bdd1; }

.ksnx__foot {
  padding: 30px 0 40px; font-size: 13.5px; color: var(--ks-ink-3);
  border-top: 1px solid var(--ks-line-2);
}
.ksnx__foot p { margin-bottom: .55em; }

/* ---------- Điện thoại ---------- */
@media (max-width: 860px) {
  .ksnx__grid3 { grid-template-columns: 1fr; }
  .ksnx__facts { grid-template-columns: repeat(2, 1fr); }
  .ksnx__legal-row { grid-template-columns: 1fr; gap: 7px; }
  .ksnx__hero { padding: 44px 0 42px; }
  .ksnx__sec { padding: 44px 0; }
  .ksnx__inner, .ksnx__narrow { padding: 0 20px; }
}
@media (max-width: 560px) {
  .ksnx { font-size: 16px; }
  .ksnx__facts { grid-template-columns: 1fr; }
  .ksnx__btn { width: 100%; justify-content: center; }
  .ksnx__part { grid-template-columns: 38px 1fr; }
  .ksnx__part-q { grid-column: 2; white-space: normal; }
  .ksnx__iframe { height: 1750px; }
  .ksnx__privacy { padding: 22px 20px; }
  .ksnx__topbar { font-size: 11px; }
}


/* ============================================================
   Breakpoint theo BỀ RỘNG CỘT (container query).
   Ghi đè bộ @media ở trên — đây mới là bộ có tác dụng thực tế
   trên trình duyệt hiện hành.
   ============================================================ */
@container ksnx (max-width: 1000px) {
  .ksnx__facts { grid-template-columns: repeat(2, 1fr); }
}
@container ksnx (max-width: 880px) {
  .ksnx__grid3 { grid-template-columns: 1fr; }
  .ksnx__legal-row { grid-template-columns: 1fr; gap: 7px; }
  .ksnx__hero { padding: 46px 0 42px; }
  .ksnx__sec, .ksnx__closing { padding: 46px 0; }
  .ksnx__inner, .ksnx__narrow { padding: 0 22px; }
  .ksnx__lede { font-size: 17px; }
  .ksnx__pull { font-size: 18px; }
}
@container ksnx (max-width: 620px) {
  .ksnx { font-size: 16px; }
  .ksnx__facts { grid-template-columns: 1fr; }
  .ksnx__btn { width: 100%; justify-content: center; }
  .ksnx__part { grid-template-columns: 34px 1fr; gap: 14px; }
  .ksnx__part-q { grid-column: 2; white-space: normal; margin-top: 4px; }
  .ksnx__privacy { padding: 20px 18px; }
  .ksnx__topbar { font-size: 11px; letter-spacing: .04em; }
  .ksnx__topbar-right { display: none; }
  .ksnx__iframe { height: 1750px; }
  .ksnx__faq summary { font-size: 15.5px; padding-right: 34px; }
  .ksnx__inner, .ksnx__narrow { padding: 0 18px; }
}
@container ksnx (max-width: 430px) {
  .ksnx__formbar { font-size: 12.5px; }
  .ksnx__fact b { font-size: 22px; }
}

/* ============================================================
   KSNX-FORM — phiếu chạy trực tiếp trên trang, gửi vào Google Form
   Nối tiếp bảng màu và namespace .ksnx của trang landing
   ============================================================ */

/* ---------- Thanh tiến độ dính trên đầu ---------- */
.ksnx__progress {
  position: sticky; top: 0; z-index: 40;
  background: #fff; border-bottom: 1px solid var(--ks-line);
  padding: 12px 0 0;
  box-shadow: 0 2px 10px rgba(15,47,79,.05);
}
.ksnx__progress-inner {
  max-width: 940px; margin: 0 auto; padding: 0 26px;
}
.ksnx__progress-top {
  display: flex; justify-content: space-between; align-items: baseline;
  gap: 14px; font-size: 13.5px; color: var(--ks-ink-3); margin-bottom: 9px;
}
.ksnx__progress-top b { color: var(--ks-navy); font-weight: 600; }
.ksnx__progress-bar { height: 4px; background: var(--ks-line-2); overflow: hidden; }
.ksnx__progress-fill {
  height: 100%; width: 0%; background: var(--ks-gold);
  transition: width .35s cubic-bezier(.4,0,.2,1);
}
.ksnx__steps {
  display: flex; gap: 0; list-style: none; margin: 0; padding: 10px 0 0;
  overflow-x: auto; scrollbar-width: none;
}
.ksnx__steps::-webkit-scrollbar { display: none; }
.ksnx__steps li {
  font-size: 12px; letter-spacing: .06em; text-transform: uppercase;
  color: #9aa5b3; padding: 0 14px 11px; white-space: nowrap;
  border-bottom: 2px solid transparent; font-weight: 600;
}
.ksnx__steps li:first-child { padding-left: 0; }
.ksnx__steps li.is-done { color: var(--ks-ink-3); }
.ksnx__steps li.is-now { color: var(--ks-navy); border-bottom-color: var(--ks-navy); }
.ksnx__steps li.is-skip { opacity: .38; text-decoration: line-through; }

/* ---------- Khung phiếu ---------- */
.ksnx__formwrap { background: var(--ks-navy-soft); padding: 0 0 60px; }
.ksnx__panel {
  background: #fff; border: 1px solid #ccd8e4; border-radius: var(--ks-radius);
  box-shadow: 0 3px 18px rgba(15,47,79,.08);
  margin-top: 30px;
}
.ksnx__panel-head {
  padding: 26px 32px 20px; border-bottom: 1px solid var(--ks-line);
  background: linear-gradient(180deg,#fbfcfd,#fff);
}
.ksnx__panel-head .ksnx__kicker { margin-bottom: 7px; }
.ksnx__panel-head h2 { font-size: 24px; margin-bottom: 6px; }
.ksnx__panel-head p { font-size: 15px; color: var(--ks-ink-3); margin: 0; max-width: 68ch; }
.ksnx__panel-body { padding: 8px 32px 28px; }

/* ---------- Một câu hỏi ---------- */
.ksnx__q { padding: 24px 0; border-bottom: 1px solid var(--ks-line-2); }
.ksnx__q:last-child { border-bottom: 0; }
.ksnx__q.is-hidden { display: none; }
.ksnx__q-label {
  display: block; font-weight: 600; color: var(--ks-navy);
  font-size: 16.5px; line-height: 1.5; margin-bottom: 4px;
}
.ksnx__q-label .ksnx__req { color: var(--ks-red); margin-left: 3px; }
.ksnx__q-help { font-size: 14px; color: var(--ks-ink-3); margin: 2px 0 12px; line-height: 1.6; }
.ksnx__q-err {
  display: none; font-size: 13.5px; color: var(--ks-red); font-weight: 600;
  margin-top: 9px;
}
.ksnx__q.has-err .ksnx__q-err { display: block; }
.ksnx__q.has-err .ksnx__q-label { color: var(--ks-red); }
.ksnx__q.has-err .ksnx__opt { border-color: #e6bfc2; }
.ksnx__q.has-err input[type=text], .ksnx__q.has-err textarea { border-color: var(--ks-red); }

/* ---------- Lựa chọn ---------- */
.ksnx__opts { display: grid; gap: 8px; margin-top: 11px; }
.ksnx__opts--2 { grid-template-columns: 1fr 1fr; }
.ksnx__opt {
  display: flex; align-items: flex-start; gap: 11px;
  padding: 11px 14px; border: 1px solid var(--ks-line);
  border-radius: var(--ks-radius); cursor: pointer;
  font-size: 15.5px; line-height: 1.55; color: var(--ks-ink-2);
  background: #fff; transition: border-color .12s, background .12s;
}
.ksnx__opt:hover { border-color: #b9c7d6; background: #fbfcfe; }
.ksnx__opt input { margin: 5px 0 0; flex: 0 0 auto; accent-color: #0f2f4f; width: 16px; height: 16px; }
.ksnx__opt.is-on { border-color: var(--ks-navy); background: #f2f6fa; color: var(--ks-ink); }
.ksnx__opt.is-off { opacity: .45; }

/* ---------- Ô nhập ---------- */
.ksnx__in, .ksnx__ta {
  width: 100%; font: inherit; font-size: 15.5px; color: var(--ks-ink);
  padding: 11px 13px; border: 1px solid var(--ks-line);
  border-radius: var(--ks-radius); background: #fff;
}
.ksnx__in:focus, .ksnx__ta:focus { outline: 2px solid #b9cee2; border-color: var(--ks-navy-2); }
.ksnx__in { max-width: 420px; }
.ksnx__in--num { max-width: 190px; }
.ksnx__ta { min-height: 130px; resize: vertical; line-height: 1.65; }
.ksnx__other { margin-top: 8px; margin-left: 27px; max-width: 380px; }
.ksnx__suffix { font-size: 14px; color: var(--ks-ink-3); margin-left: 9px; }

/* ---------- Bảng thang đo ---------- */
.ksnx__scalekey {
  display: flex; flex-wrap: wrap; gap: 6px 16px;
  font-size: 13px; color: var(--ks-ink-3); margin: 4px 0 14px;
}
.ksnx__scalekey b { color: var(--ks-navy); font-weight: 600; }
.ksnx__grid { border: 1px solid var(--ks-line); border-radius: var(--ks-radius); overflow: hidden; }
.ksnx__grid-head, .ksnx__grid-row {
  display: grid; grid-template-columns: 1fr 275px; align-items: center;
}
.ksnx__grid-head {
  background: var(--ks-navy); color: #cfdeeb;
  font-size: 12.5px; font-weight: 600; padding: 9px 0;
}
.ksnx__grid-head > span { padding-left: 15px; font-weight: 500; }
.ksnx__grid-head .ksnx__grid-cells span { text-align: center; font-weight: 600; padding: 0; }
.ksnx__grid-cells { display: grid; grid-template-columns: repeat(5, 1fr); }
.ksnx__grid-row { border-top: 1px solid var(--ks-line-2); }
.ksnx__grid-row:nth-child(even) { background: #fafbfd; }
.ksnx__grid-row.has-err { background: #fdf4f4; }
.ksnx__grid-lab { padding: 12px 15px; font-size: 15px; color: var(--ks-ink-2); line-height: 1.5; }
.ksnx__grid-lab i {
  font-style: normal; font-size: 11.5px; color: #9aa5b3;
  display: inline-block; min-width: 44px; font-weight: 600; letter-spacing: .04em;
}
.ksnx__grid-cell { text-align: center; }
.ksnx__grid-cell label {
  display: block; padding: 13px 0; cursor: pointer; line-height: 1;
}
.ksnx__grid-cell label:hover { background: rgba(15,47,79,.045); }
.ksnx__grid-cell input { width: 17px; height: 17px; accent-color: #0f2f4f; cursor: pointer; margin: 0; }
.ksnx__grid-cell label span { display: none; }   /* nhãn số chỉ hiện ở khổ điện thoại */
.ksnx__grid-sub {
  background: #eef3f8; padding: 10px 15px; font-size: 13px; font-weight: 700;
  color: var(--ks-navy); letter-spacing: .04em; text-transform: uppercase;
  border-top: 1px solid var(--ks-line);
}

/* ---------- Điều hướng ---------- */
.ksnx__nav {
  display: flex; justify-content: space-between; align-items: center; gap: 14px;
  padding: 20px 32px; border-top: 1px solid var(--ks-line); background: #fafbfc;
  flex-wrap: wrap;
}
.ksnx__nav-note { font-size: 13.5px; color: var(--ks-ink-3); }
.ksnx__btn--nav { background: var(--ks-navy); color: #fff; border-color: var(--ks-navy); }
.ksnx__btn--nav:hover { background: #17456f; border-color: #17456f; color: #fff; }
.ksnx__btn--back { background: #fff; color: var(--ks-ink-2); border-color: var(--ks-line); }
.ksnx__btn--back:hover { background: #f2f5f8; color: var(--ks-ink); }
.ksnx__btn[disabled] { opacity: .5; pointer-events: none; }

/* ---------- Tổng kết lỗi ---------- */
.ksnx__errbox {
  display: none; margin: 0 32px 4px; padding: 13px 16px;
  background: #fdf2f2; border: 1px solid #edc8cb; border-left: 3px solid var(--ks-red);
  border-radius: var(--ks-radius); font-size: 14.5px; color: #7d1a22;
}
.ksnx__errbox.is-on { display: block; }
.ksnx__errbox b { color: #7d1a22; }

/* ---------- Màn hình xong ---------- */
.ksnx__done { display: none; padding: 60px 32px; text-align: center; }
.ksnx__done.is-on { display: block; }
.ksnx__done-mark {
  width: 62px; height: 62px; margin: 0 auto 22px; border-radius: 50%;
  background: #e8f4ec; color: #1f7a45; display: flex; align-items: center;
  justify-content: center; font-size: 30px; border: 1.5px solid #b9dfc8;
}
.ksnx__done h2 { font-size: 26px; margin-bottom: 12px; }
.ksnx__done p { color: var(--ks-ink-2); max-width: 56ch; margin: 0 auto 10px; }

/* ---------- Đang gửi ---------- */
.ksnx__sending { display: none; align-items: center; gap: 10px; font-size: 14.5px; color: var(--ks-ink-3); }
.ksnx__sending.is-on { display: flex; }
.ksnx__spin {
  width: 15px; height: 15px; border: 2px solid #cdd8e3; border-top-color: var(--ks-navy);
  border-radius: 50%; animation: ksnxspin .7s linear infinite;
}
@keyframes ksnxspin { to { transform: rotate(360deg); } }

/* ---------- Cảnh báo chưa cấu hình ---------- */
.ksnx__setup {
  margin: 24px 0 0; padding: 16px 18px; border-radius: var(--ks-radius);
  background: #fff8e6; border: 1px solid #e8d18a; border-left: 3px solid var(--ks-gold);
  font-size: 14.5px; color: #6b5310; line-height: 1.65;
}
.ksnx__setup b { color: #4d3b06; }
.ksnx__setup code {
  background: #f3e6c2; padding: 1px 5px; border-radius: 3px;
  font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 13px;
}

/* ---------- Thu hẹp theo cột ---------- */
@container ksnx (max-width: 880px) {
  .ksnx__panel-head, .ksnx__panel-body, .ksnx__nav { padding-left: 22px; padding-right: 22px; }
  .ksnx__errbox { margin-left: 22px; margin-right: 22px; }
  .ksnx__progress-inner { padding: 0 22px; }
  .ksnx__opts--2 { grid-template-columns: 1fr; }
}
@container ksnx (max-width: 620px) {
  .ksnx__panel { margin-top: 20px; }
  .ksnx__panel-head, .ksnx__panel-body, .ksnx__nav { padding-left: 16px; padding-right: 16px; }
  .ksnx__errbox { margin-left: 16px; margin-right: 16px; }
  .ksnx__progress-inner { padding: 0 16px; }
  .ksnx__panel-head h2 { font-size: 20px; }
  .ksnx__q-label { font-size: 15.5px; }
  .ksnx__opt { font-size: 15px; padding: 11px 12px; }
  .ksnx__nav { flex-direction: column-reverse; align-items: stretch; }
  .ksnx__nav .ksnx__btn { width: 100%; justify-content: center; }
  .ksnx__nav-note { text-align: center; }

  /* bảng thang đo xếp dọc cho điện thoại */
  .ksnx__grid { border: 0; }
  .ksnx__grid-head { display: none; }
  .ksnx__grid-row {
    display: block; border: 1px solid var(--ks-line); border-radius: var(--ks-radius);
    margin-bottom: 9px; background: #fff !important; padding: 12px 13px;
  }
  .ksnx__grid-row.has-err { border-color: var(--ks-red); background: #fdf4f4 !important; }
  .ksnx__grid-lab { padding: 0 0 10px; font-size: 15px; }
  .ksnx__grid-cells { grid-template-columns: repeat(5, 1fr); gap: 4px; }
  .ksnx__grid-cell label span { display: block; }
  .ksnx__grid-cell {
    padding: 0; border: 1px solid var(--ks-line); border-radius: var(--ks-radius);
  }
  .ksnx__grid-cell label {
    display: flex; flex-direction: column; align-items: center; gap: 5px;
    padding: 9px 0 8px; font-size: 12px; color: var(--ks-ink-3);
  }
  .ksnx__grid-cell.is-on { border-color: var(--ks-navy); background: #f2f6fa; }
  .ksnx__steps li { font-size: 11px; padding: 0 10px 10px; }
}

/* ============================================================
   Ô chọn phường/xã — gõ để lọc trong danh sách 168 đơn vị
   ============================================================ */
.ksnx__combo { margin-top: 11px; }
.ksnx__combo-box { position: relative; max-width: 460px; }
.ksnx__combo-in { width: 100%; max-width: 100%; padding-right: 38px; }
.ksnx__combo-box::after {
  content: ""; position: absolute; right: 14px; top: 50%;
  width: 9px; height: 9px; margin-top: -6px; pointer-events: none;
  border-right: 2px solid #9aa5b3; border-bottom: 2px solid #9aa5b3;
  transform: rotate(45deg);
}

.ksnx__combo-list {
  display: none; position: absolute; z-index: 30; left: 0; right: 0; top: calc(100% + 3px);
  margin: 0; padding: 4px; list-style: none; max-height: 268px; overflow-y: auto;
  background: #fff; border: 1px solid #b9c7d6; border-radius: var(--ks-radius);
  box-shadow: 0 8px 26px rgba(15,47,79,.16);
}
.ksnx__combo-list.is-open { display: block; }
.ksnx__combo-op {
  padding: 9px 12px; font-size: 15.5px; color: var(--ks-ink-2);
  cursor: pointer; border-radius: 3px; line-height: 1.4;
}
.ksnx__combo-op.is-cur, .ksnx__combo-op:hover {
  background: var(--ks-navy); color: #fff;
}
.ksnx__combo-empty {
  padding: 11px 12px; font-size: 14px; color: var(--ks-ink-3); line-height: 1.55;
}

.ksnx__combo-note { font-size: 13.5px; margin-top: 7px; line-height: 1.55; min-height: 1px; }
.ksnx__combo-note.is-ok   { color: #1f7a45; font-weight: 600; }
.ksnx__combo-note.is-free { color: var(--ks-ink-3); }

/* ---- thẻ đã chọn (câu chọn được nhiều phường) ---- */
.ksnx__chips { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 9px; }
.ksnx__chips:empty { display: none; }
.ksnx__chip {
  display: inline-flex; align-items: center; gap: 7px;
  background: #eef3f8; border: 1px solid #c7d5e2; border-radius: 999px;
  padding: 5px 6px 5px 13px; font-size: 14.5px; color: var(--ks-navy); font-weight: 500;
}
.ksnx__chip-x {
  border: 0; background: #d6e0ea; color: #40546a; cursor: pointer;
  width: 19px; height: 19px; border-radius: 50%; line-height: 1;
  font-size: 14px; display: flex; align-items: center; justify-content: center;
  padding: 0; font-family: inherit;
}
.ksnx__chip-x:hover { background: var(--ks-red); color: #fff; }

@container ksnx (max-width: 620px) {
  .ksnx__combo-box { max-width: 100%; }
  .ksnx__combo-list { max-height: 232px; }
  .ksnx__combo-op { padding: 11px 12px; font-size: 16px; }
}