/*!
 * Khôi Anh Home — GĐ2 trang chủ + GĐ3 trang giải pháp. Chỉ nạp ở trang chủ và các trang /giai-phap/*.
 * Mobile-first: gốc <850px; desktop @media (min-width:850px); hero 2 cột từ 1100px.
 * Dùng token trong kah-redesign.css.
 */
.kah-wrap { max-width: 1140px; margin: 0 auto; padding: 0 15px; } /* = .container của Flatsome */
.kah-hero ul, .kah-proof ul, .kah-sec ul, .kah-sec ol { list-style: none; margin: 0; padding: 0; }
ul.kah-sol-grid > li, ul.kah-proof-list > li, ol.kah-steps-list > li,
ul.kah-post-grid > li, ul.kah-brand-list > li { margin: 0; }
ul.kah-wrap { padding-left: 15px; padding-right: 15px; }
.kah-hero a, .kah-proof a, .kah-sec a.kah-post-card, .kah-banner { text-decoration: none; }
.kah-hero a:focus-visible, .kah-proof a:focus-visible, .kah-sec a:focus-visible, .kah-banner:focus-visible {
  outline: none; box-shadow: var(--kah-focus); border-radius: var(--kah-radius);
}

/* ---------- Hero + hạng mục ---------- */
.kah-hero { background: linear-gradient(180deg, var(--kah-blue-soft) 0, #fff 100%); padding: 20px 0 8px; font-family: var(--kah-font); }
.kah-hero-eyebrow { margin: 0 0 6px; font-size: 13px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--kah-blue-dark); }
.kah-hero-h1 { margin: 0 0 8px; font-size: 24px; line-height: 1.25; font-weight: 700; color: var(--kah-text); }
.kah-hero-desc { margin: 0 0 16px; font-size: 15px; line-height: 1.55; color: var(--kah-muted); }
.kah-hero-cta { display: flex; flex-wrap: wrap; gap: 10px; }
.kah-btn {
  flex: 1 1 auto; display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 0 18px; border-radius: 999px; white-space: nowrap;
  font-size: 16px; font-weight: 700; line-height: 1.2; text-align: center;
}
.kah-btn-primary { background: var(--kah-blue); color: #fff; }
.kah-btn-primary:hover { background: var(--kah-blue-dark); color: #fff; }
.kah-btn-ghost { background: #fff; color: var(--kah-blue-dark); border: 1.5px solid var(--kah-blue); }
.kah-btn-ghost:hover { background: var(--kah-blue-soft); color: var(--kah-blue-dark); }

.kah-sol { margin-top: 24px; }
.kah-sol-title { margin: 0 0 10px; font-size: 18px; line-height: 1.3; font-weight: 700; color: var(--kah-text); }
.kah-sol-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.kah-sol-card {
  position: relative; display: flex; flex-direction: column; height: 100%;
  background: #fff; border: 1px solid var(--kah-line); border-radius: var(--kah-radius); overflow: hidden; color: var(--kah-text);
  transition: border-color .15s, box-shadow .15s;
}
.kah-sol-card:hover { border-color: var(--kah-blue); box-shadow: var(--kah-shadow); color: var(--kah-text); }
.kah-sol-img { position: relative; display: block; aspect-ratio: 4 / 3; overflow: hidden; background: var(--kah-surface-alt); }
.kah-sol-img img { position: absolute; inset: 0; display: block; width: 100%; height: 100%; object-fit: cover; }
.kah-sol-body { display: block; padding: 10px 28px 12px 12px; }
.kah-sol-name { margin: 0 0 4px; font-size: 15px; line-height: 1.3; font-weight: 700; color: var(--kah-text); }
.kah-sol-desc {
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  font-size: 13px; line-height: 1.4; color: var(--kah-muted);
}
.kah-sol-arrow { position: absolute; right: 10px; bottom: 10px; font-size: 22px; line-height: 1; color: var(--kah-blue); }

/* ---------- Cam kết ---------- */
.kah-proof { padding: 12px 0 4px; }
.kah-proof-list { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.kah-proof-item {
  display: flex; align-items: center; gap: 8px; min-height: 52px; padding: 8px 12px;
  background: #fff; border: 1px solid var(--kah-line); border-radius: 10px;
  font-size: 14px; font-weight: 600; line-height: 1.3; color: var(--kah-text);
}
a.kah-proof-item:hover { border-color: var(--kah-blue); color: var(--kah-blue-dark); }
.kah-proof-list svg { flex: 0 0 22px; color: var(--kah-blue); }

/* ---------- Banner chương trình ---------- */
.kah-banners { padding: 12px 0 4px; }
.kah-banner-row { display: flex; gap: 10px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; }
.kah-banner-row::-webkit-scrollbar { display: none; }
.kah-banner { flex: 0 0 88%; scroll-snap-align: start; display: block; border-radius: var(--kah-radius); overflow: hidden; background: var(--kah-surface-alt); }
.kah-banner img { display: block; width: 100%; height: auto; aspect-ratio: 2560 / 668; object-fit: cover; }

/* ---------- Khối chung ---------- */
.kah-sec { padding: 20px 0; font-family: var(--kah-font); }
.kah-h-head {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  margin: 0 0 12px; padding-bottom: 4px; border-bottom: 2px solid var(--kah-line);
}
.kah-h-title { margin: 0; font-size: 19px; line-height: 1.3; font-weight: 700; color: var(--kah-text); }
.kah-h-more { display: inline-flex; align-items: center; min-height: 44px; white-space: nowrap; font-size: 14px; font-weight: 600; color: var(--kah-blue-dark); }
.kah-h-more:hover { color: var(--kah-blue); }
.kah-prod .products { margin-bottom: 0; }

/* ---------- Quy trình ---------- */
.kah-steps-list { display: grid; gap: 10px; }
.kah-steps-list li { position: relative; padding: 12px 12px 12px 56px; background: var(--kah-surface-alt); border-radius: var(--kah-radius); }
.kah-step-no {
  position: absolute; left: 12px; top: 12px; width: 32px; height: 32px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--kah-blue-dark); color: #fff; font-size: 15px; font-weight: 700;
}
.kah-step-name { margin: 0 0 2px; font-size: 16px; line-height: 1.3; font-weight: 700; color: var(--kah-text); }
.kah-steps-list p { margin: 0; font-size: 14px; line-height: 1.45; color: var(--kah-muted); }

/* ---------- Bài viết ---------- */
.kah-post-grid { display: grid; gap: 10px; }
.kah-post-card { display: flex; gap: 12px; align-items: flex-start; color: var(--kah-text); }
.kah-post-img { position: relative; flex: 0 0 120px; aspect-ratio: 4 / 3; border-radius: var(--kah-radius-sm); overflow: hidden; background: var(--kah-surface-alt); }
.kah-post-img img { position: absolute; inset: 0; display: block; width: 100%; height: 100%; object-fit: cover; }
.kah-post-body { display: block; min-width: 0; }
.kah-post-title {
  margin: 0 0 4px; font-size: 15px; line-height: 1.4; font-weight: 700; color: var(--kah-text);
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.kah-post-card:hover .kah-post-title { color: var(--kah-blue-dark); }
.kah-post-body time { font-size: 13px; color: var(--kah-muted); }

/* ---------- Thương hiệu ---------- */
.kah-brand-list { display: flex; flex-wrap: wrap; gap: 8px; }
.kah-brand-list a {
  display: inline-flex; align-items: center; min-height: 44px; padding: 0 14px;
  border: 1px solid var(--kah-line); border-radius: 999px; background: #fff;
  font-size: 14px; font-weight: 600; color: var(--kah-text); text-decoration: none;
}
.kah-brand-list a:hover { border-color: var(--kah-blue); color: var(--kah-blue-dark); }
.kah-brand-n { margin-left: 6px; font-size: 12px; font-weight: 500; color: var(--kah-muted); }

@media (max-width: 374px) {
  .kah-hero-h1 { font-size: 22px; }
  .kah-sol-grid { gap: 8px; }
  .kah-sol-body { padding: 8px 24px 10px 10px; }
  .kah-sol-name { font-size: 14px; }
}

@media (min-width: 850px) {
  .kah-hero { padding: 32px 0 12px; }
  .kah-hero-h1 { font-size: 32px; }
  .kah-hero-desc { font-size: 17px; max-width: 640px; }
  .kah-hero-cta .kah-btn { flex: 0 0 auto; }
  .kah-sol-grid { grid-template-columns: repeat(3, 1fr); gap: 12px; }
  .kah-sol-img { aspect-ratio: 16 / 10; }
  .kah-proof-list { grid-template-columns: repeat(4, 1fr); gap: 12px; }
  .kah-banner-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; overflow: visible; padding: 0; }
  .kah-sec { padding: 28px 0; }
  .kah-h-title { font-size: 24px; }
  .kah-steps-list { grid-template-columns: repeat(5, 1fr); gap: 12px; }
  .kah-steps-list li { padding: 16px; }
  .kah-step-no { position: static; margin-bottom: 10px; }
  .kah-post-grid { grid-template-columns: repeat(3, 1fr); gap: 20px; }
  .kah-post-card { flex-direction: column; }
  .kah-post-img { flex: none; width: 100%; aspect-ratio: 16 / 10; }
  .kah-post-title { font-size: 16px; }
}

@media (min-width: 1100px) {
  .kah-hero-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 40px; align-items: center; }
  .kah-hero-h1 { font-size: 36px; }
  .kah-sol { margin-top: 0; }
}

/* ========== GĐ3 — Trang giải pháp (/giai-phap/*) ========== */
/* Lưu ý: Customizer CSS đã dùng .kah-check-list, .kah-toc, .kah-step… → không dùng lại các tên đó */
.kah-sol-hero { padding-bottom: 12px; }
.kah-bc ol { display: flex; flex-wrap: wrap; gap: 4px 6px; margin: 0 0 12px; padding: 0; list-style: none; font-size: 13px; color: var(--kah-muted); }
.kah-bc li { margin: 0; }
.kah-bc li + li::before { content: "›"; margin-right: 6px; color: var(--kah-muted); }
.kah-bc a { color: var(--kah-blue-dark); text-decoration: none; }
.kah-bc a:hover { text-decoration: underline; }
.kah-bc [aria-current] { color: var(--kah-text); font-weight: 600; }
.kah-sol-toc { margin-top: 16px; }
.kah-sol-toc ul { display: flex; gap: 8px; overflow-x: auto; scrollbar-width: none; }
.kah-sol-toc ul::-webkit-scrollbar { display: none; }
.kah-sol-toc li { flex: 0 0 auto; margin: 0; }
.kah-sol-toc a {
  display: inline-flex; align-items: center; min-height: 44px; padding: 0 14px; border-radius: 999px;
  background: #fff; border: 1px solid var(--kah-line); font-size: 14px; font-weight: 600; color: var(--kah-text); white-space: nowrap;
}
.kah-sol-toc a:hover { border-color: var(--kah-blue); color: var(--kah-blue-dark); }
.kah-sec[id] { scroll-margin-top: 80px; }

.kah-prob-list { display: grid; gap: 8px; }
ul.kah-prob-list > li, ul.kah-sol-checks > li, ul.kah-cat-grid > li { margin: 0; }
.kah-prob-list a {
  display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 52px; padding: 10px 14px;
  background: #fff; border: 1px solid var(--kah-line); border-radius: 10px;
  font-size: 15px; font-weight: 600; line-height: 1.35; color: var(--kah-text); text-decoration: none;
}
.kah-prob-list a:hover { border-color: var(--kah-blue); color: var(--kah-blue-dark); }
.kah-prob-arrow { flex: 0 0 auto; font-size: 22px; line-height: 1; color: var(--kah-blue); }

.kah-sol-checks { display: grid; gap: 8px; }
.kah-sol-checks li {
  position: relative; padding: 10px 12px 10px 40px; background: var(--kah-surface-alt); border-radius: 10px;
  font-size: 15px; line-height: 1.45; color: var(--kah-text);
}
.kah-sol-checks li::before {
  content: ""; position: absolute; left: 14px; top: 15px; width: 12px; height: 7px;
  border-left: 2.5px solid var(--kah-blue); border-bottom: 2.5px solid var(--kah-blue); transform: rotate(-45deg);
}
.kah-note { margin: 12px 0 0; font-size: 14px; color: var(--kah-muted); }

.kah-cat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.kah-cat-card {
  display: flex; flex-direction: column; height: 100%; overflow: hidden;
  background: #fff; border: 1px solid var(--kah-line); border-radius: var(--kah-radius); color: var(--kah-text); text-decoration: none;
}
.kah-cat-card:hover { border-color: var(--kah-blue); box-shadow: var(--kah-shadow); color: var(--kah-text); }
.kah-cat-img { position: relative; display: block; aspect-ratio: 1 / 1; overflow: hidden; background: var(--kah-surface-alt); }
.kah-cat-img img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.kah-cat-name { display: block; padding: 10px 12px 2px; font-size: 15px; font-weight: 700; line-height: 1.3; }
.kah-cat-n { display: block; padding: 0 12px 12px; font-size: 13px; color: var(--kah-muted); }

.kah-cta-box { padding: 20px; border-radius: var(--kah-radius); background: var(--kah-blue-soft); }
.kah-cta-title { margin: 0 0 6px; font-size: 19px; line-height: 1.3; font-weight: 700; color: var(--kah-text); }
.kah-cta-box p { margin: 0 0 14px; font-size: 15px; line-height: 1.5; color: var(--kah-muted); }
.kah-cta-box .kah-btn { flex: none; }
.kah-cta-box a.kah-btn, .kah-sol-hero a.kah-btn { text-decoration: none; }

.kah-hub-groups { display: grid; gap: 20px; }
.kah-hub-group h3 { margin: 0 0 8px; font-size: 17px; font-weight: 700; }
.kah-hub-group h3 a { display: inline-flex; align-items: center; min-height: 44px; color: var(--kah-text); text-decoration: none; }
.kah-hub-group h3 a:hover { color: var(--kah-blue-dark); }

@media (min-width: 850px) {
  .kah-prob-list { grid-template-columns: 1fr 1fr; gap: 10px; }
  .kah-sol-checks { grid-template-columns: repeat(3, 1fr); gap: 10px; }
  .kah-cat-grid { grid-template-columns: repeat(4, 1fr); gap: 16px; }
  .kah-sol-grid-hub { grid-template-columns: repeat(3, 1fr); }
  .kah-hub-groups { grid-template-columns: repeat(3, 1fr); gap: 24px; }
  .kah-hub-groups .kah-prob-list { grid-template-columns: 1fr; }
  .kah-cta-box { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 24px 28px; }
  .kah-cta-box p { margin: 0; }
  .kah-cta-title { font-size: 22px; }
}

@media (prefers-reduced-motion: reduce) {
  .kah-sol-card { transition: none; }
}