/*
 * Chuyên trang "Y học dự phòng là gì?" (web/portal/pages/y-hoc-du-phong.php).
 * Bố cục chuyên khảo (monograph): phân tầng thị giác rõ ràng, mạch lạc theo 3 phần (Bản chất & Chính sách → Hệ sinh thái chuyên môn → Con người & Sự nghiệp).
 * Chỉ dùng token màu của portal.css nên tự thích ứng hoàn hảo với giao diện Sáng / Tối.
 */

.yd {
  padding-bottom: 0;
}
.yd em {
  font-style: normal;
  color: var(--xanh-dam);
}

/* ================= 1. HERO CHUYÊN ĐỀ ================= */
.yd-hero {
  position: relative;
  background:
    radial-gradient(circle at 85% 20%, rgba(61, 184, 150, 0.14), transparent 45%),
    linear-gradient(155deg, var(--xanh-nhat) 0%, var(--nen-phu) 52%, var(--nen) 100%);
  border-bottom: 1px solid var(--vien);
  padding: 18px 0 44px;
  overflow: hidden;
}
.yd-crumbs {
  padding: 0 0 20px;
}
.yd-hero-grid {
  display: grid;
  gap: 32px;
  align-items: center;
}
.yd-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--xanh-dam);
  margin: 0 0 12px;
}
.yd-eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--xanh-dam);
  border-radius: 2px;
}
.yd-hero h1 {
  font-size: clamp(2.15rem, 1.5rem + 2.8vw, 3.35rem);
  margin: 0 0 10px;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--than);
}
.yd-hero-tagline {
  font-size: clamp(1.2rem, 1.02rem + 0.85vw, 1.55rem);
  font-weight: 700;
  color: var(--xanh-dam);
  margin: 0 0 16px;
  line-height: 1.35;
}
.yd-hero-lead {
  font-size: 1.0625rem;
  color: var(--chu);
  max-width: 640px;
  line-height: 1.7;
  margin: 0 0 26px;
}
.yd-hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 16px;
}
.yd-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 20px;
  border-radius: 8px;
  background: var(--nut);
  color: #fff;
  font-weight: 700;
  font-size: 0.9375rem;
  box-shadow: 0 4px 14px -2px rgba(23, 120, 94, 0.28);
  transition: background 0.15s ease, transform 0.15s ease;
}
.yd-btn-primary:hover {
  background: var(--nut-hover);
  color: #fff;
  transform: translateY(-1px);
}
.yd-btn-secondary {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 8px;
  background: var(--be-mat);
  border: 1px solid var(--vien-dam);
  color: var(--than);
  font-weight: 700;
  font-size: 0.9375rem;
  transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}
.yd-btn-secondary:hover {
  border-color: var(--xanh-dam);
  color: var(--xanh-dam);
  background: var(--xanh-nhat);
}
.yd-btn-text {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--chu-phu);
  padding: 6px 4px;
}
.yd-btn-text:hover {
  color: var(--xanh-dam);
}
.yd-play-dot {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--xanh-nhat);
  border: 1px solid var(--vien-xanh);
  color: var(--xanh-dam);
  display: inline-grid;
  place-items: center;
  font-size: 0.65rem;
}

/* Thẻ sơ đồ tổng quan bên phải Hero */
.yd-emblem-card {
  background: var(--be-mat);
  border: 1px solid var(--vien-xanh);
  border-radius: 16px;
  padding: 22px;
  box-shadow: 0 12px 32px -8px rgba(20, 48, 42, 0.08);
}
.yd-emblem-head {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-bottom: 14px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--vien);
}
.yd-emblem-badge {
  align-self: flex-start;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--xanh-nhat);
  color: var(--xanh-dam);
}
.yd-emblem-head strong {
  font-size: 1.1875rem;
  color: var(--than);
  letter-spacing: -0.01em;
}
.yd-emblem-tiers {
  display: grid;
  gap: 10px;
}
.yd-tier {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 12px;
  align-items: center;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--nen-phu);
  border: 1px solid var(--vien);
}
.yd-tier-num {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--xanh-dam);
  background: var(--xanh-nhat);
  border: 1px solid var(--vien-xanh);
  border-radius: 6px;
  padding: 5px 6px;
  text-align: center;
}
.yd-tier strong {
  display: block;
  font-size: 0.9375rem;
  color: var(--than);
  line-height: 1.3;
}
.yd-tier span {
  display: block;
  font-size: 0.8125rem;
  color: var(--chu-phu);
  margin-top: 2px;
}
.yd-emblem-foot {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed var(--vien-dam);
  text-align: center;
}
.yd-emblem-foot strong {
  display: block;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--xanh-dam);
  line-height: 1.1;
}
.yd-emblem-foot span {
  display: block;
  font-size: 0.72rem;
  color: var(--chu-phu);
  margin-top: 2px;
}

/* ================= 2. MỤC LỤC DÍNH (STICKY TOC) ================= */
.yd-toc {
  position: sticky;
  top: 46px;
  z-index: 40;
  background: var(--be-mat);
  border-bottom: 1px solid var(--vien);
  box-shadow: 0 2px 10px -2px rgba(20, 48, 42, 0.05);
}
.yd-toc .wrap {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: none;
  padding-top: 6px;
  padding-bottom: 6px;
}
.yd-toc .wrap::-webkit-scrollbar {
  display: none;
}
.yd-toc a {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  border-radius: 999px;
  font-size: 0.84375rem;
  font-weight: 600;
  color: var(--chu-phu);
  white-space: nowrap;
  transition: background 0.15s ease, color 0.15s ease;
}
.yd-toc-num {
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--xanh-dam);
  opacity: 0.75;
  font-variant-numeric: tabular-nums;
}
.yd-toc a:hover {
  background: var(--nen-phu);
  color: var(--xanh-dam);
}
.yd-toc a.is-active {
  background: var(--xanh-nhat);
  color: var(--xanh-dam);
  font-weight: 700;
}
.yd-toc a.is-active .yd-toc-num {
  opacity: 1;
}

/* ================= 3. KHUNG MỤC CHUNG (SECTIONS) ================= */
.yd-section {
  padding: 56px 0 16px;
  scroll-margin-top: 104px;
}
.yd-section + .yd-section {
  border-top: 1px solid var(--vien);
}
.yd-sec-header {
  margin-bottom: 18px;
}
.yd-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--xanh-dam);
}
.yd-label-num {
  display: inline-grid;
  place-items: center;
  min-width: 28px;
  height: 24px;
  padding: 0 7px;
  border-radius: 6px;
  background: var(--xanh-nhat);
  border: 1px solid var(--vien-xanh);
  color: var(--xanh-dam);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
}
.yd-section h2,
.yd-band h2,
.yd-closing h2 {
  font-size: clamp(1.6rem, 1.2rem + 1.5vw, 2.25rem);
  line-height: 1.22;
  letter-spacing: -0.015em;
  margin: 0 0 14px;
}
.yd-section h2 em,
.yd-band h2 em,
.yd-closing h2 em {
  display: block;
}
.yd-split {
  display: grid;
  gap: 16px 48px;
  margin-bottom: 32px;
}
.yd-copy {
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--chu);
}
.yd-copy p:last-child {
  margin-bottom: 0;
}
.yd-lead-para {
  font-size: 1.125rem;
  color: var(--than);
  font-weight: 500;
}
.yd-quote {
  margin: 20px 0 0;
  padding: 16px 20px;
  border-left: 4px solid var(--xanh-dam);
  background: var(--nen-phu);
  border-radius: 0 12px 12px 0;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--than);
  line-height: 1.55;
}
.yd-quote p {
  margin: 0;
}
.yd-kicker {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--xanh-dam);
  margin: 0 0 6px;
}

/* Dải con số ở Mục 01 */
.yd-numbers {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin: 22px 0 10px;
}
.yd-numbers > div {
  background: var(--nen-phu);
  border: 1px solid var(--vien);
  border-radius: 12px;
  padding: 14px 12px;
  text-align: center;
}
.yd-numbers strong {
  display: block;
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1.1;
  color: var(--xanh-dam);
}
.yd-numbers span {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--chu-phu);
  margin-top: 4px;
}
.yd-numbers-caption {
  font-size: 0.875rem;
  color: var(--chu-phu);
  margin: 0;
  line-height: 1.55;
}

/* ================= 4. BA CẤP ĐỘ DỰ PHÒNG (MỤC 02) ================= */
.yd-subblock {
  margin: 8px 0 28px;
}
.yd-subblock-head {
  margin-bottom: 16px;
}
.yd-subblock-head h3 {
  font-size: 1.25rem;
  margin: 0;
}
.yd-levels-grid {
  display: grid;
  gap: 16px;
}
.yd-level-card {
  position: relative;
  background: var(--be-mat);
  border: 1px solid var(--vien);
  border-top: 4px solid var(--xanh-dam);
  border-radius: 14px;
  padding: 22px;
  box-shadow: 0 4px 16px -4px rgba(20, 48, 42, 0.04);
  display: flex;
  flex-direction: column;
}
.yd-level-top {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.yd-level-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--xanh-nhat);
  color: var(--xanh-dam);
  display: grid;
  place-items: center;
  flex: none;
}
.yd-level-stage {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--xanh-dam);
  background: var(--nen-phu);
  border: 1px solid var(--vien);
  padding: 4px 10px;
  border-radius: 999px;
}
.yd-level-top .yd-no {
  margin: 0 0 0 auto;
  font-size: 1.5rem;
}
.yd-level-card h4 {
  font-size: 1.1875rem;
  margin: 0 0 8px;
  color: var(--than);
}
.yd-level-card p {
  margin: 0;
  font-size: 0.96875rem;
  line-height: 1.65;
  color: var(--chu);
}

/* ================= 5. KHỐI CHÍNH SÁCH & BẢNG ĐỐI CHIẾU ================= */
.yd-panel {
  background: var(--nen-phu);
  border: 1px solid var(--vien);
  border-radius: 16px;
  padding: 28px 24px;
  margin: 0 0 28px;
}
.yd-panel-header {
  display: grid;
  gap: 8px 32px;
  margin-bottom: 20px;
}
.yd-panel-header h3 {
  font-size: 1.35rem;
  margin: 0;
}
.yd-panel-sub {
  font-size: 0.9375rem;
  color: var(--chu-phu);
  margin: 0;
  line-height: 1.6;
}
.yd-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--vien);
  border-radius: 12px;
  background: var(--be-mat);
  margin-bottom: 22px;
}
.yd-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}
.yd-table th,
.yd-table td {
  text-align: left;
  vertical-align: top;
  padding: 15px 18px;
  border-bottom: 1px solid var(--vien);
  line-height: 1.6;
}
.yd-table tbody tr:last-child th,
.yd-table tbody tr:last-child td {
  border-bottom: 0;
}
.yd-table thead th {
  background: var(--xanh-nhat);
  color: var(--than);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--vien-xanh);
}
.yd-table tbody th {
  width: 21%;
  color: var(--than);
  font-weight: 700;
  background: rgba(61, 184, 150, 0.03);
  border-right: 1px solid var(--vien);
}
.yd-table tbody td + td {
  border-left: 1px solid var(--vien);
}
.yd-row-num {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--xanh-dam);
  background: var(--xanh-nhat);
  padding: 2px 7px;
  border-radius: 5px;
  margin-right: 8px;
  font-variant-numeric: tabular-nums;
}

/* Hướng đi cho Việt Nam */
.yd-callout {
  border: 1px solid var(--vien-xanh);
  border-left: 5px solid var(--xanh-dam);
  background: var(--be-mat);
  border-radius: 12px;
  padding: 22px 24px;
  margin: 0 0 18px;
}
.yd-callout-head h4 {
  font-size: 1.1875rem;
  margin: 0 0 14px;
  color: var(--than);
}
.yd-callout-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px 24px;
}
.yd-callout-grid li {
  position: relative;
  padding-left: 26px;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--chu);
}
.yd-callout-grid li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 1px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--xanh-nhat);
  color: var(--xanh-dam);
  font-size: 0.75rem;
  font-weight: 800;
  display: grid;
  place-items: center;
}

/* Nguồn tham khảo dạng thẻ thuốc (pills) */
.yd-sources {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  align-items: center;
  font-size: 0.8125rem;
  color: var(--chu-phu);
  margin-top: 14px;
}
.yd-sources-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  color: var(--than);
}
.yd-sources-label svg {
  color: var(--xanh-dam);
}
.yd-sources-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.yd-sources a {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 11px;
  border-radius: 999px;
  background: var(--be-mat);
  border: 1px solid var(--vien-dam);
  color: var(--xanh-dam);
  font-weight: 600;
  text-decoration: none;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.yd-sources a:hover {
  background: var(--xanh-nhat);
  border-color: var(--xanh-dam);
}

/* ================= 6. TÌNH HUỐNG COVID-19 (CASE STUDY) ================= */
.yd-case {
  position: relative;
  overflow: hidden;
  margin-bottom: 12px;
}
.yd-case-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 12px;
}
.yd-case-head h3 {
  font-size: clamp(1.3rem, 1.05rem + 1vw, 1.75rem);
  margin: 0;
  line-height: 1.28;
}
.yd-case-head h3 em {
  color: var(--xanh-dam);
}
.yd-case-watermark {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--xanh-dam);
  opacity: 0.12;
  line-height: 1;
  user-select: none;
  flex: none;
}
.yd-case-lead {
  font-size: 1rem;
  line-height: 1.7;
  max-width: 880px;
  margin: 0 0 22px;
}
.yd-steps {
  list-style: none;
  counter-reset: yd-step;
  padding: 0;
  margin: 0 0 22px;
  display: grid;
  gap: 14px;
}
.yd-steps li {
  counter-increment: yd-step;
  position: relative;
  background: var(--be-mat);
  border: 1px solid var(--vien);
  border-radius: 12px;
  padding: 18px 18px 16px 64px;
  transition: border-color 0.15s ease;
}
.yd-steps li:hover {
  border-color: var(--vien-xanh);
}
.yd-steps li::before {
  content: counter(yd-step, decimal-leading-zero);
  position: absolute;
  left: 16px;
  top: 16px;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--xanh-nhat);
  border: 1px solid var(--vien-xanh);
  color: var(--xanh-dam);
  font-weight: 800;
  font-size: 0.875rem;
  display: grid;
  place-items: center;
  font-variant-numeric: tabular-nums;
}
.yd-steps h4 {
  font-size: 1.0625rem;
  margin: 0 0 5px;
  color: var(--than);
}
.yd-steps p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--chu);
}
.yd-lesson {
  background: var(--be-mat);
  border: 1px solid var(--vien-vang);
  border-left: 5px solid var(--vang);
  border-radius: 12px;
  padding: 18px 20px;
  margin-bottom: 18px;
}
.yd-lesson-title {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--vang);
  font-size: 1.02rem;
  margin-bottom: 6px;
}
.yd-lesson p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--chu);
}

/* ================= 7. LƯỚI THẺ CHUYÊN MÔN & MẶT TRẬN (MỤC 03 & 04) ================= */
.yd-grid {
  display: grid;
  gap: 18px;
  margin: 0 0 22px;
}
.yd-card {
  position: relative;
  background: var(--be-mat);
  border: 1px solid var(--vien);
  border-radius: 14px;
  padding: 24px 22px 20px;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}
.yd-card:hover {
  border-color: var(--vien-xanh);
  box-shadow: 0 8px 24px -6px rgba(20, 48, 42, 0.07);
}
.yd-card h3 {
  font-size: 1.15rem;
  margin: 0 0 8px;
  color: var(--than);
  line-height: 1.35;
}
.yd-card p {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--chu);
}
.yd-card p:last-child,
.yd-card ul:last-child {
  margin-bottom: 0;
}
.yd-no {
  display: inline-block;
  font-size: 1.5rem;
  font-weight: 800;
  line-height: 1;
  color: var(--vien-dam);
  font-variant-numeric: tabular-nums;
}

/* Mục 03: 4 lĩnh vực nền tảng */
.yd-field-card {
  border-top: 3px solid var(--xanh);
}
.yd-field-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.yd-field-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--xanh-nhat);
  color: var(--xanh-dam);
  display: grid;
  place-items: center;
  flex: none;
}

/* Mục 04: 6 mặt trận + thẻ bài học 07 */
.yd-frontier-card {
  border-top: 3px solid var(--xanh);
}
.yd-frontier-highlight {
  background: linear-gradient(160deg, var(--xanh-nhat) 0%, var(--be-mat) 55%);
  border-color: var(--vien-xanh);
  border-top: 3px solid var(--xanh-dam);
}
.yd-frontier-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 6px;
}
.yd-ticks {
  list-style: none;
  padding: 14px 0 0;
  margin: auto 0 0;
  border-top: 1px dashed var(--vien-dam);
  font-size: 0.9125rem;
}
.yd-ticks li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 7px;
  line-height: 1.5;
  color: var(--chu);
}
.yd-ticks li:last-child {
  margin-bottom: 0;
}
.yd-ticks li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--xanh-dam);
  font-weight: 800;
}

/* Thẻ 07: Ba bài học thực tế (SARS, Sốt xuất huyết, TCMR) */
.yd-cases-banner {
  background: var(--nen-phu);
  border-top: 3px solid var(--xanh-dam);
}
.yd-mini {
  margin: 14px 0 0;
}
.yd-mini-item {
  background: var(--be-mat);
  border: 1px solid var(--vien);
  border-left: 4px solid var(--xanh);
  border-radius: 10px;
  padding: 16px 18px;
}
.yd-mini-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--chu-phu);
  margin-bottom: 4px;
}
.yd-mini-item h4 {
  font-size: 1.0625rem;
  margin: 0 0 6px;
  color: var(--than);
}
.yd-mini-item h4 a {
  color: var(--xanh-dam);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.yd-mini-item h4 a:hover {
  text-decoration: underline;
}
.yd-mini-item p {
  font-size: 0.9125rem;
  margin: 0;
  line-height: 1.6;
}

/* ================= 8. BỐN TRỤ CỘT MỞ RỘNG (MỤC 05) ================= */
.yd-pillars {
  display: grid;
  gap: 20px;
  margin-bottom: 24px;
}
.yd-pillar {
  background: var(--be-mat);
  border: 1px solid var(--vien);
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 4px 16px -4px rgba(20, 48, 42, 0.04);
}
.yd-pillar-main {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 18px;
  align-items: start;
}
.yd-pillar-index {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--nut);
  color: #fff;
  font-size: 1.375rem;
  font-weight: 800;
  display: grid;
  place-items: center;
  box-shadow: 0 4px 12px rgba(23, 120, 94, 0.22);
}
.yd-pillar-intro h3 {
  font-size: 1.25rem;
  margin: 0 0 6px;
}
.yd-pillar-intro p:last-child {
  margin: 0;
  font-size: 0.96875rem;
  line-height: 1.65;
  color: var(--chu);
}
.yd-points {
  display: grid;
  gap: 12px;
  margin: 18px 0 0;
  padding-top: 18px;
  border-top: 1px dashed var(--vien-dam);
}
.yd-point-box {
  background: var(--nen-phu);
  border: 1px solid var(--vien);
  border-radius: 10px;
  padding: 14px 16px;
}
.yd-points dt {
  font-weight: 700;
  font-size: 0.96875rem;
  color: var(--than);
  margin-bottom: 4px;
}
.yd-points dd {
  margin: 0;
  font-size: 0.89rem;
  line-height: 1.55;
  color: var(--chu-phu);
}
.yd-message {
  background: var(--dai);
  color: #E7F2EE;
  border-radius: 14px;
  padding: 22px 26px;
  margin: 0 0 16px;
  display: grid;
  gap: 6px;
}
.yd-message .yd-kicker {
  color: #8FE0C5;
  margin: 0;
}
.yd-message p {
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.6;
  color: #fff;
}

/* ================= 9. NGHỀ NGHIỆP & VỊ TRÍ CÔNG TÁC (MỤC 06) ================= */
.yd-career-card {
  border-top: 3px solid var(--xanh-dam);
}
.yd-career-top {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
.yd-career-top .yd-kicker {
  margin: 0;
}
.yd-workplaces-panel {
  margin-bottom: 20px;
}
.yd-workplaces-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
}
.yd-workplaces-head h3 {
  font-size: 1.3rem;
  margin: 0;
}
.yd-workplaces-count {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--xanh-dam);
  background: var(--xanh-nhat);
  border: 1px solid var(--vien-xanh);
  padding: 4px 12px;
  border-radius: 999px;
}
.yd-workplaces {
  margin: 0;
}
.yd-workplace-card {
  background: var(--be-mat);
  border: 1px solid var(--vien);
  border-radius: 12px;
  padding: 18px;
  transition: border-color 0.15s ease;
}
.yd-workplace-card:hover {
  border-color: var(--vien-xanh);
}
.yd-workplace-card .yd-no {
  font-size: 1.25rem;
  color: var(--xanh-dam);
  margin-bottom: 8px;
}
.yd-workplace-card h4 {
  font-size: 1.05rem;
  margin: 0 0 6px;
  color: var(--than);
}
.yd-workplace-card p {
  margin: 0;
  font-size: 0.9125rem;
  line-height: 1.6;
  color: var(--chu-phu);
}

/* Hộp gợi ý phù hợp nghề nghiệp */
.yd-fit-note {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: var(--xanh-nhat);
  border: 1px solid var(--vien-xanh);
  border-radius: 14px;
  padding: 20px 22px;
  margin: 0 0 12px;
}
.yd-fit-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--be-mat);
  color: var(--xanh-dam);
  display: grid;
  place-items: center;
  flex: none;
}
.yd-fit-note strong {
  display: block;
  font-size: 1.0625rem;
  color: var(--than);
  margin-bottom: 4px;
}
.yd-fit-note p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--chu);
}

/* ================= 10. DẢI NỀN TỐI: BÁC SĨ YHDP (MỤC 07) ================= */
.yd-band {
  background: linear-gradient(145deg, var(--dai) 0%, #0E2620 100%);
  color: #CFE3DC;
  padding: 64px 0;
  margin-top: 40px;
  scroll-margin-top: 100px;
}
.yd-band h2 {
  color: #fff;
}
.yd-band h2 em,
.yd-band .yd-label,
.yd-band .yd-kicker {
  color: #8FE0C5;
}
.yd-band .yd-label-num {
  background: rgba(143, 224, 197, 0.14);
  border-color: rgba(143, 224, 197, 0.35);
  color: #8FE0C5;
}
.yd-band-grid {
  display: grid;
  gap: 32px;
  align-items: center;
}
.yd-band-copy p {
  font-size: 1.0625rem;
  line-height: 1.75;
  color: #D5E6E0;
}
.yd-band-quote {
  margin: 24px 0 0;
  padding: 14px 18px;
  border-left: 4px solid var(--xanh);
  background: rgba(255, 255, 255, 0.05);
  border-radius: 0 10px 10px 0;
  font-size: 1.2rem;
  font-weight: 700;
  color: #fff;
}
.yd-band-quote p {
  margin: 0;
  color: #fff;
}
.yd-band-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 16px;
  padding: 26px;
  box-shadow: 0 16px 40px -10px rgba(0, 0, 0, 0.3);
}
.yd-band-card-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.yd-band-card-head .yd-kicker {
  margin: 0;
}
.yd-pulse-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #3DB896;
  box-shadow: 0 0 0 4px rgba(61, 184, 150, 0.25);
  flex: none;
}
.yd-band-story {
  font-size: 0.98rem;
  line-height: 1.75;
  color: #E7F2EE;
  margin: 0 0 16px;
}
.yd-band-timeline {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}
.yd-band-timeline span {
  font-size: 0.75rem;
  font-weight: 600;
  color: #B8D8CD;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 4px 10px;
  border-radius: 999px;
}
.yd-band-silent {
  margin: 0;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
}
.yd-band-silent span {
  color: #8FE0C5;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  font-size: 0.78rem;
  display: block;
  margin-bottom: 2px;
}

/* ================= 11. HỎI ĐÁP (MỤC 08) ================= */
.yd-faq {
  display: grid;
  gap: 12px;
  margin-bottom: 16px;
}
.yd-faq details {
  background: var(--be-mat);
  border: 1px solid var(--vien);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.yd-faq details:hover {
  border-color: var(--vien-dam);
}
.yd-faq details[open] {
  border-color: var(--vien-xanh);
  box-shadow: 0 6px 20px -6px rgba(20, 48, 42, 0.07);
}
.yd-faq summary {
  cursor: pointer;
  list-style: none;
  padding: 16px 52px 16px 18px;
  font-weight: 700;
  color: var(--than);
  position: relative;
  font-size: 1.05rem;
  display: flex;
  align-items: center;
  gap: 12px;
  line-height: 1.4;
}
.yd-faq summary::-webkit-details-marker {
  display: none;
}
.yd-faq-num {
  flex: none;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--xanh-nhat);
  color: var(--xanh-dam);
  font-size: 0.78rem;
  font-weight: 800;
  display: grid;
  place-items: center;
  font-variant-numeric: tabular-nums;
}
.yd-faq summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--nen-phu);
  color: var(--xanh-dam);
  font-size: 1.25rem;
  font-weight: 600;
  display: grid;
  place-items: center;
}
.yd-faq details[open] summary {
  background: var(--nen-phu);
  border-bottom: 1px solid var(--vien);
}
.yd-faq details[open] summary::after {
  content: "−";
  background: var(--xanh-nhat);
}
.yd-faq-ans {
  padding: 16px 22px 18px 58px;
  line-height: 1.72;
  color: var(--chu);
}
.yd-faq-ans p {
  margin: 0;
}
.yd-faq a {
  color: var(--xanh-dam);
  font-weight: 600;
  text-decoration: underline;
}

/* ================= 12. HÀNH TRÌNH 4 GIAI ĐOẠN (MỤC 09) ================= */
.yd-journey {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
  display: grid;
  gap: 16px;
}
.yd-journey-step {
  position: relative;
  background: var(--be-mat);
  border: 1px solid var(--vien);
  border-top: 4px solid var(--xanh-dam);
  border-radius: 14px;
  padding: 22px 20px;
  display: flex;
  flex-direction: column;
}
.yd-journey-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 14px;
}
.yd-journey-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--xanh-nhat);
  color: var(--xanh-dam);
  display: grid;
  place-items: center;
  flex: none;
}
.yd-journey-badge {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--xanh-dam);
  background: var(--nen-phu);
  border: 1px solid var(--vien);
  padding: 4px 10px;
  border-radius: 999px;
}
.yd-journey-step h3 {
  font-size: 1.125rem;
  margin: 0 0 8px;
  color: var(--than);
}
.yd-journey-step p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--chu);
}

/* ================= 13. KẾT TRANG (CLOSING BANNER) ================= */
.yd-closing {
  background: linear-gradient(135deg, var(--xanh-dam), var(--xanh-ngoc));
  color: #fff;
  padding: 60px 0;
  margin-top: 32px;
  text-align: center;
}
.yd-closing .yd-eyebrow {
  color: #DFF5EC;
  justify-content: center;
}
.yd-closing .yd-eyebrow::before {
  background: #DFF5EC;
}
.yd-closing h2 {
  color: #fff;
  max-width: 820px;
  margin: 0 auto 12px;
}
.yd-closing h2 em {
  color: #DFF5EC;
}
.yd-closing-sub {
  color: #E3F4EE;
  font-size: 1.02rem;
  max-width: 600px;
  margin: 0 auto 24px;
}
.yd-closing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin: 0;
}
.yd-btn {
  display: inline-flex;
  align-items: center;
  min-height: 46px;
  padding: 0 22px;
  border-radius: 8px;
  background: #fff;
  color: #0B5A48;
  font-weight: 700;
  font-size: 0.95rem;
  transition: background 0.15s ease, transform 0.15s ease;
}
.yd-btn:hover {
  background: #E3F4EE;
  color: #0B5A48;
  transform: translateY(-1px);
}
.yd-btn-ghost {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.45);
}
.yd-btn-ghost:hover {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
}

/* Giao diện tối: điều chỉnh độ tương phản của Hero và Closing */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .yd-closing {
    background: linear-gradient(135deg, #0E4E3E, #0B3B30);
  }
}
:root[data-theme="dark"] .yd-closing {
  background: linear-gradient(135deg, #0E4E3E, #0B3B30);
}

/* ================= 14. ĐÁP ỨNG MÀN HÌNH (RESPONSIVE) ================= */
@media (min-width: 640px) {
  .yd-grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
  .yd-grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
  .yd-grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .yd-card-wide {
    grid-column: 1 / -1;
  }
  .yd-steps {
    grid-template-columns: repeat(2, 1fr);
  }
  .yd-journey {
    grid-template-columns: repeat(2, 1fr);
  }
  .yd-callout-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 960px) {
  .yd-hero {
    padding: 22px 0 56px;
  }
  .yd-hero-grid {
    grid-template-columns: 7fr 5fr;
    gap: 48px;
  }
  .yd-split {
    grid-template-columns: 5fr 7fr;
    align-items: start;
  }
  .yd-levels-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .yd-panel-header {
    grid-template-columns: 5fr 7fr;
    align-items: end;
  }
  .yd-grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
  .yd-steps {
    grid-template-columns: repeat(3, 1fr);
  }
  .yd-journey {
    grid-template-columns: repeat(4, 1fr);
  }
  .yd-points {
    grid-template-columns: repeat(3, 1fr);
  }
  .yd-band-grid {
    grid-template-columns: 6fr 6fr;
    gap: 48px;
  }
}

@media (max-width: 639px) {
  .yd-section {
    padding: 40px 0 12px;
  }
  .yd-panel {
    padding: 20px 16px;
  }
  .yd-table-wrap {
    border: 0;
    background: transparent;
  }
  .yd-table thead {
    display: none;
  }
  .yd-table,
  .yd-table tbody,
  .yd-table tr,
  .yd-table th,
  .yd-table td {
    display: block;
    width: 100%;
  }
  .yd-table tr {
    border: 1px solid var(--vien);
    border-radius: 10px;
    margin-bottom: 12px;
    overflow: hidden;
    background: var(--be-mat);
  }
  .yd-table th,
  .yd-table td {
    border: 0;
    border-top: 1px solid var(--vien);
    padding: 12px 14px;
  }
  .yd-table tbody th {
    width: 100%;
    border-top: 0;
    background: var(--xanh-nhat);
  }
  .yd-table td::before {
    content: attr(data-label);
    display: block;
    font-size: 0.72rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--xanh-dam);
    margin-bottom: 4px;
  }
  .yd-numbers strong {
    font-size: 1.4rem;
  }
  .yd-pillar {
    padding: 18px 16px;
  }
  .yd-pillar-main {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .yd-pillar-index {
    width: 44px;
    height: 44px;
    font-size: 1.125rem;
    border-radius: 10px;
  }
  .yd-faq-ans {
    padding-left: 18px;
  }
  .yd-case-watermark {
    display: none;
  }
}