/* ภาพอธิบายฉบับนักศึกษา (content/visuals.js) และกล่องไอเดียการสอน (โหมดอาจารย์) */
.vis {
  margin: 22px 0;
}
.vis figcaption {
  margin-top: 10px;
  font-size: var(--text-small);
  color: var(--muted);
  text-align: center;
}

/* ---------- ฉากที่เจอจริง ---------- */
.scene {
  margin: 20px 0;
  padding: 16px 18px;
  border-left: 4px solid var(--blue);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: var(--soft);
}
.scene-tag {
  display: block;
  margin-bottom: 6px;
  font-size: var(--text-meta, 0.8rem);
  letter-spacing: 0.04em;
  color: var(--blue);
}
.scene p {
  margin: 6px 0;
}
.scene-ask {
  font-weight: 600;
}

/* ---------- ภูเขาน้ำแข็ง ---------- */
.ice {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: var(--space-lg);
  align-items: start;
}
.ice-art {
  width: 100%;
  height: auto;
}
.ice-top {
  fill: var(--blue);
}
.ice-deep {
  fill: var(--soft);
  stroke: var(--blue);
  stroke-width: 1.5;
}
.ice-sea {
  fill: var(--line);
}
.ice-above {
  margin: 0 0 12px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
}
.ice-above small,
.ice-line small {
  display: block;
  font-size: var(--text-meta, 0.8rem);
  color: var(--muted);
}
.ice-above b {
  display: block;
  margin-top: 2px;
}
.ice-above span {
  display: block;
  font-size: var(--text-small);
  color: var(--muted);
}
.ice-under {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}
.ice-under li {
  padding: 10px 14px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  /* เบราว์เซอร์เก่าที่ไม่รู้จัก color-mix() จะใช้ค่าบรรทัดแรก */
  background: var(--soft);
  background: color-mix(in srgb, var(--soft) 45%, transparent);
}
.ice-under li.ice-line {
  border: 0;
  padding: 0 0 2px;
  background: none;
}
.ice-under b {
  display: block;
}
.ice-under span {
  display: block;
  font-size: var(--text-small);
  color: var(--muted);
}

/* ---------- เทียบสองมุมมอง ---------- */
.cmp {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.cmp-head {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--space-sm);
  padding: 12px var(--space-lg);
  background: var(--soft);
  font-weight: 600;
}
.cmp-head i {
  font-style: normal;
  font-size: var(--text-meta, 0.8rem);
  color: var(--muted);
}
.cmp-head .cmp-b,
.cmp-rows .cmp-b {
  color: var(--blue);
}
.cmp-rows {
  list-style: none;
  margin: 0;
  padding: 0;
}
.cmp-rows li {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px var(--space-lg);
  padding: 12px var(--space-lg);
  border-top: 1px solid var(--line);
}
.cmp-rows small {
  grid-column: 1 / -1;
  font-size: var(--text-meta, 0.8rem);
  color: var(--muted);
}

/* ---------- ขั้นตอนพร้อมคำอธิบาย ---------- */
.steps-flow {
  list-style: none;
  counter-reset: s;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-md);
}
.steps-flow li {
  counter-increment: s;
  position: relative;
  padding: 12px 16px 12px 52px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
}
.steps-flow li::before {
  content: counter(s);
  position: absolute;
  left: 14px;
  top: 12px;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--blue);
  color: #fff;
  font-size: var(--text-small);
  font-weight: 700;
}
.steps-flow li:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 27px;
  bottom: -13px;
  width: 1px;
  height: 12px;
  background: var(--line);
}
.steps-flow b {
  display: block;
}
.steps-flow span {
  display: block;
  margin-top: 2px;
  font-size: var(--text-small);
  color: var(--muted);
}

/* ---------- แท่งเทียบสัดส่วน ---------- */
.bars {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.bars li {
  display: grid;
  grid-template-columns: minmax(6rem, 12rem) 1fr auto;
  align-items: center;
  gap: var(--space-md);
  font-size: var(--text-small);
}
.bars-track {
  height: 14px;
  border-radius: 999px;
  background: var(--soft);
  overflow: hidden;
}
.bars-track i {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: var(--blue);
}
.bars li.warn .bars-track i {
  background: var(--warn);
}
.bars li.ok .bars-track i {
  background: var(--ok);
}
/* แท่งสรุป เช่น ค่าเฉลี่ยทั้งประเทศ — เน้นด้วยสีทองและชื่อตัวหนา ไม่ได้แปลว่าดีหรือแย่ */
.bars li.hi .bars-track i {
  background: var(--gold);
}
.bars li.hi .bars-k,
.bars li.hi .bars-v {
  font-weight: 700;
  color: var(--ink);
}
.bars-v {
  font-weight: 700;
  white-space: nowrap;
}

/* ---------- วงกลมสัดส่วน ---------- */
.donut {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: var(--space-xl);
  align-items: center;
}
.donut svg {
  width: 100%;
  height: auto;
  transform: rotate(-90deg);
}
.donut-key {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}
.donut-key li {
  display: grid;
  grid-template-columns: 3.2rem 1fr;
  align-items: baseline;
  gap: var(--space-sm);
  font-size: var(--text-small);
  border-left: 4px solid currentcolor;
  padding-left: var(--space-md);
}
.donut-key b {
  font-size: 1rem;
}
.donut-key span {
  color: var(--text);
}
.tone-0 {
  color: var(--blue);
  stroke: var(--blue);
}
.tone-1 {
  color: var(--navy-ink);
  stroke: var(--navy-ink);
}
.tone-2 {
  color: var(--ok);
  stroke: var(--ok);
}
.tone-3 {
  color: var(--warn);
  stroke: var(--warn);
}
.tone-4 {
  color: var(--muted);
  stroke: var(--muted);
}

/* ---------- ตราชั่ง ---------- */
.scale {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}
.scale svg {
  grid-column: 1 / -1;
  width: 100%;
  max-width: 420px;
  height: auto;
  margin: 0 auto;
}
.scale-beam,
.scale-rope,
.scale-post {
  stroke: var(--muted);
  stroke-width: 3;
  stroke-linecap: round;
}
.scale-base {
  fill: var(--muted);
}
.scale-pan.a {
  fill: var(--navy);
}
.scale-pan.b {
  fill: var(--blue);
}
.scale-side {
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: var(--text-small);
}
.scale-side b {
  display: block;
  margin-bottom: 2px;
}
.scale-side span {
  color: var(--muted);
}
.scale-side.a {
  border-left: 4px solid var(--navy);
}
.scale-side.b {
  border-left: 4px solid var(--blue);
}

/* ---------- เส้นเวลา ---------- */
.tl {
  list-style: none;
  margin: 0;
  padding: 0 0 0 var(--space-xl);
  border-left: 2px solid var(--line);
  display: grid;
  gap: var(--space-lg);
}
.tl li {
  position: relative;
}
.tl li::before {
  content: "";
  position: absolute;
  left: calc(var(--space-xl) * -1 - 6px);
  top: 6px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 0 3px var(--paper);
}
.tl small {
  display: block;
  font-size: var(--text-meta, 0.8rem);
  color: var(--muted);
}
.tl b {
  display: block;
}
.tl span {
  display: block;
  font-size: var(--text-small);
  color: var(--muted);
}

/* ---------- ชั้นของระบบ ---------- */
.layers {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}
.layers li {
  margin-left: calc(var(--d) * 18px);
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-left: 4px solid var(--blue);
  border-radius: var(--radius);
  background: var(--paper);
}
.layers b {
  display: block;
}
.layers span {
  display: block;
  font-size: var(--text-small);
  color: var(--muted);
}

/* ---------- เช็กตัวเอง ---------- */
.selfcheck {
  margin: 22px 0;
  padding: 14px 18px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  background: var(--ok-soft);
}
.selfcheck b {
  display: block;
  margin-bottom: 6px;
}
.selfcheck ul {
  margin: 0;
  padding-left: 1.1rem;
  font-size: var(--text-small);
}

/* ---------- ไอเดียออกแบบการเรียนรู้ (โหมดอาจารย์) ---------- */
.teach {
  margin-top: var(--space-section);
  padding-top: var(--space-xl);
  border-top: 2px dashed var(--line);
}
.teach-note {
  margin: 0 0 var(--space-lg);
  font-size: var(--text-small);
  color: var(--muted);
}
.teach-cards {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: repeat(auto-fill, minmax(20rem, 1fr));
}
.teach-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: var(--space-lg);
  background: var(--paper);
}
.teach-card > b {
  display: block;
}
.teach-meta {
  margin: 4px 0 10px;
  font-size: var(--text-meta, 0.8rem);
  color: var(--muted);
}
.teach-meta span:not(:last-child)::after {
  content: " · ";
}
.teach-card ol,
.teach-card ul {
  margin: 0;
  padding-left: 1.1rem;
  font-size: var(--text-small);
}
.teach-card .teach-assess {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
  font-size: var(--text-small);
}
.teach-card .teach-assess b {
  color: var(--blue);
}

@media (max-width: 640px) {
  .ice,
  .donut {
    grid-template-columns: 1fr;
  }
  .ice-art {
    max-width: 120px;
  }
  .cmp-rows li,
  .scale {
    grid-template-columns: 1fr;
  }
  .bars li {
    grid-template-columns: 1fr auto;
  }
  .bars-track {
    grid-column: 1 / -1;
  }
}

/* ---------- การ์ดลิงก์ไปเว็บพี่น้อง ---------- */
.linkout {
  margin: 24px 0;
  padding: 18px 20px;
  border: 1px solid var(--blue);
  border-radius: var(--radius);
  background: var(--soft);
}
.linkout-site {
  margin: 0 0 4px;
  font-size: var(--text-meta, 0.8rem);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--blue);
}
.linkout-main {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
}
.linkout-main:hover {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 4px;
}
.linkout-go {
  font-size: 0.9em;
  color: var(--blue);
}
.linkout-desc {
  margin: 6px 0 0;
  font-size: var(--text-small);
  color: var(--ink);
}
.linkout-list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
}
.linkout-list li {
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  font-size: var(--text-small);
}
.linkout-list a {
  font-weight: 600;
  color: var(--blue);
  text-decoration: none;
}
.linkout-list a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}
.linkout-list span {
  display: block;
  margin-top: 2px;
  color: var(--muted);
}

/* ---------- พีระมิดหลายชั้น ---------- */
.pyr {
  display: grid;
  grid-template-columns: minmax(240px, 360px) 1fr;
  gap: var(--space-xl);
  align-items: center;
}
.pyr svg {
  width: 100%;
  height: auto;
}
.pyr-band {
  /* ไล่เฉดสีเดียวให้เห็นลำดับชั้น แต่ไม่จางกว่า 0.55 เพราะตัวอักษรสีขาวบนแถบจาง ๆ จะอ่านไม่ออกในธีมสว่าง */
  fill: var(--navy);
  fill-opacity: calc(0.55 + var(--s) * 0.45);
  stroke: var(--paper);
  stroke-width: 2;
}
.pyr-label {
  fill: #fff;
  /* ตัวใหญ่กว่าปกติเพราะ SVG ถูกย่อลงเหลือราวครึ่งหนึ่งของ viewBox เมื่อวางเป็นคอลัมน์ซ้าย */
  font-size: 21px;
  font-weight: 700;
  text-anchor: middle;
  paint-order: stroke;
}
.pyr-out {
  fill: var(--ink);
  text-anchor: start;
}
.pyr-key {
  list-style: none;
  counter-reset: pyr;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.pyr-key li {
  counter-increment: pyr;
  padding-left: var(--space-lg);
  border-left: 4px solid var(--navy);
  border-left-color: color-mix(in srgb, var(--navy) calc(var(--s) * 100%), var(--line));
}
.pyr-key b {
  display: block;
}
.pyr-key span {
  display: block;
  font-size: var(--text-small);
  color: var(--muted);
}

/* ---------- วงจร 4 ขั้น ---------- */
.cy4 {
  display: grid;
  grid-template-columns: minmax(220px, 320px) 1fr;
  gap: var(--space-xl);
  align-items: center;
}
.cy4 svg {
  width: 100%;
  height: auto;
}
.cy4-ring {
  fill: none;
  stroke: var(--line);
  stroke-width: 1.5;
  stroke-dasharray: 3 5;
}
.cy4-arrow {
  fill: none;
  stroke: var(--muted);
  stroke-width: 2;
}
.cy4-arrow + .cy4-arrow {
  opacity: 0.9;
}
#cy4-head path,
.cy4 marker path {
  fill: var(--muted);
}
.cy4-node rect {
  /* เฉดเดียวไล่ความเข้มตามลำดับขั้น ให้อ่านลำดับได้โดยไม่ต้องใช้หลายสี
     ต่ำสุด 0.55 เพื่อให้ตัวอักษรสีขาวยังผ่านเกณฑ์คอนทราสต์ */
  fill: var(--navy);
  fill-opacity: calc(0.55 + var(--s) * 0.45);
}
.cy4-node text {
  fill: #fff;
  font-size: 16px;
  font-weight: 700;
  text-anchor: middle;
}
.cy4-center {
  fill: var(--muted);
  font-size: 15px;
  font-weight: 600;
  text-anchor: middle;
}
.cy4-key {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.cy4-key b {
  display: block;
}
.cy4-key span {
  display: block;
  font-size: var(--text-small);
  color: var(--muted);
}

/* ---------- ด่านคำถามเรียงลำดับ ---------- */
.gates {
  list-style: none;
  counter-reset: gate;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.gates li {
  counter-increment: gate;
  display: grid;
  grid-template-columns: 2rem 1fr 1.6fr;
  align-items: center;
  gap: var(--space-md);
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-left: 4px solid var(--blue);
  border-radius: var(--radius);
  background: var(--paper);
}
.gates li::before {
  content: counter(gate);
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--soft);
  color: var(--blue);
  font-size: var(--text-small);
  font-weight: 700;
}
.gates span {
  color: var(--muted);
  font-size: var(--text-small);
}

@media (max-width: 640px) {
  .pyr,
  .cy4 {
    grid-template-columns: 1fr;
  }
  .gates li {
    grid-template-columns: 2rem 1fr;
  }
  .gates span {
    grid-column: 2;
  }
}

/* ---------- Swiss cheese model ---------- */
.chz {
  display: grid;
  gap: var(--space-lg);
}
.chz svg {
  width: 100%;
  height: auto;
}
.chz-slab {
  fill: var(--gold);
  stroke: var(--navy);
  stroke-opacity: 0.35;
  stroke-width: 1.5;
}
.chz-back {
  fill: var(--gold);
  fill-opacity: 0.45;
}
.chz-hole {
  fill: var(--paper);
  stroke: var(--navy);
  stroke-opacity: 0.35;
  stroke-width: 1.5;
}
.chz-path {
  fill: none;
  stroke: var(--danger);
  stroke-width: 3.5;
  stroke-linecap: round;
}
.chz-burst {
  fill: var(--danger);
}
.chz-num {
  fill: var(--navy);
  stroke: var(--paper);
  stroke-width: 2;
}
.chz-num-t {
  fill: #fff;
  font-size: 15px;
  font-weight: 700;
  text-anchor: middle;
}
.chz-key {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  counter-reset: chz;
}
.chz-key li {
  counter-increment: chz;
  padding-left: var(--space-xl);
  position: relative;
}
.chz-key li::before {
  content: counter(chz);
  position: absolute;
  left: 0;
  top: 1px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--navy);
  color: #fff;
  font-size: var(--text-small);
  font-weight: 700;
  display: grid;
  place-items: center;
}
.chz-key b {
  display: block;
}
.chz-key span {
  display: block;
  font-size: var(--text-small);
  color: var(--muted);
}
@media (min-width: 760px) {
  /* ภาพกินเต็มความกว้างเพื่อให้แผ่นชีสใหญ่พอมองเห็นรู ส่วนคำอธิบายแบ่งเป็นสองคอลัมน์ใต้ภาพ */
  .chz-key {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
  }
}

/* ---------- กล่องซ้อนกัน (macro › meso › micro) ---------- */
.nest {
  container-type: inline-size;
}
.nest-lv {
  border: 2px solid var(--navy-ink);
  border-color: color-mix(in srgb, var(--navy-ink) calc(30% + var(--s) * 70%), transparent);
  border-radius: var(--radius);
  padding: var(--space-lg);
  background: var(--navy);
  background: color-mix(in srgb, var(--navy) calc(var(--s) * 7%), var(--paper));
}
.nest-lv .nest-lv {
  margin-top: var(--space-lg);
}
.nest-t {
  margin: 0;
}
.nest-t b {
  display: block;
}
.nest-t i {
  display: block;
  font-style: normal;
  font-size: var(--text-small);
  letter-spacing: 0.02em;
  color: var(--navy-ink);
}
.nest-t span {
  display: block;
  font-size: var(--text-small);
  color: var(--muted);
}
.nest-who {
  list-style: none;
  margin: var(--space-md) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}
.nest-who li {
  background: var(--navy);
  color: #fff;
  border-radius: 999px;
  padding: 4px 14px;
  font-size: var(--text-small);
  font-weight: 600;
}

/* ---------- ดอกไม้กลีบ (CanMEDS) ---------- */
.flower {
  width: 100%;
  max-width: 460px;
  height: auto;
  margin-inline: auto;
  display: block;
}
.petal {
  fill: var(--navy-ink);
  fill-opacity: 0.16;
  stroke: var(--gold);
  stroke-width: 2;
}
.petal-core {
  fill: var(--gold);
  stroke: var(--navy);
  stroke-opacity: 0.3;
  stroke-width: 2;
}
.petal-t,
.petal-core-t {
  text-anchor: middle;
  font-size: 15px;
  font-weight: 600;
  fill: var(--ink);
}
.petal-core-t {
  font-weight: 700;
}

/* ---------- สะพาน: ปัจจัยนำเข้า → ตัวกลาง → เป้าหมาย ---------- */
.bridge {
  display: grid;
  gap: var(--space-lg);
  align-items: center;
}
.bridge-col > b {
  display: block;
  font-size: var(--text-small);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: var(--space-sm);
}
.bridge-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}
.bridge-col li {
  background: color-mix(in srgb, var(--navy-ink) 7%, var(--paper));
  border-left: 3px solid var(--navy-ink);
  border-radius: 6px;
  padding: 8px 12px;
  font-size: var(--text-small);
}
.bridge-goal li {
  background: color-mix(in srgb, var(--gold) 18%, var(--paper));
  border-left-color: var(--gold);
}
.bridge-mid {
  display: grid;
  justify-items: center;
  gap: 6px;
  font-size: var(--text-small);
  font-weight: 600;
  color: var(--navy-ink);
  text-align: center;
}
.bridge-arrow {
  width: 44px;
  height: 14px;
  background: var(--navy-ink);
  clip-path: polygon(0 30%, 62% 30%, 62% 0, 100% 50%, 62% 100%, 62% 70%, 0 70%);
}
@media (min-width: 720px) {
  .bridge {
    grid-template-columns: 1fr auto 1fr;
  }
  .bridge-mid {
    padding-inline: var(--space-md);
  }
}

/* ---------- สามเหลี่ยมสี่ส่วน ---------- */
.triad {
  width: 100%;
  max-width: 460px;
  height: auto;
  margin-inline: auto;
  display: block;
}
.triad-side {
  fill: var(--navy-ink);
  fill-opacity: 0.14;
  stroke: var(--paper);
  stroke-width: 4;
}
.triad-core {
  fill: var(--gold);
  fill-opacity: 0.45;
  stroke: var(--paper);
  stroke-width: 4;
}
.triad-t,
.triad-core-t {
  text-anchor: middle;
  font-size: 15px;
  font-weight: 600;
  fill: var(--ink);
}
.triad-core-t {
  font-weight: 700;
}

/* ---------- ทางลาด PDSA ---------- */
.ramp {
  display: grid;
  gap: var(--space-md);
}
.ramp svg {
  width: 100%;
  height: auto;
}
.ramp-rule {
  stroke: var(--gold);
  stroke-width: 5;
  stroke-linecap: round;
}
.ramp-arrow,
.ramp-head {
  fill: none;
  stroke: var(--navy-ink);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.ramp-data {
  /* ขอบสีพื้นรอบตัวอักษร กันไม่ให้เส้นลูกศรตัดผ่านจนอ่านยาก */
  paint-order: stroke;
  stroke: var(--paper);
  stroke-width: 6;
  fill: var(--navy-ink);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-anchor: middle;
}
.ramp-wheel circle {
  fill: var(--paper);
  stroke: var(--navy-ink);
  stroke-width: 2.5;
}
.ramp-wheel line {
  stroke: var(--navy-ink);
  stroke-width: 2;
}
.ramp-wheel text {
  fill: var(--navy-ink);
  font-size: 14px;
  font-weight: 700;
  text-anchor: middle;
}
.ramp-ends {
  display: flex;
  justify-content: space-between;
  gap: var(--space-lg);
  font-size: var(--text-small);
  font-weight: 600;
}
.ramp-ends span:last-child {
  text-align: right;
}
.ramp-key {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
  counter-reset: ramp;
}
.ramp-key li {
  counter-increment: ramp;
  padding-left: var(--space-xl);
  position: relative;
  font-size: var(--text-small);
}
.ramp-key li::before {
  content: counter(ramp);
  position: absolute;
  left: 0;
  top: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--navy);
  color: #fff;
  font-weight: 700;
  display: grid;
  place-items: center;
}
.ramp-key b {
  display: block;
}
.ramp-key span {
  color: var(--muted);
}
@media (min-width: 760px) {
  .ramp-key {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md) var(--space-lg);
  }
}

/* ---------- คำย่อที่แต่ละตัวอักษรมีความหมาย ---------- */
.acro {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-md);
}
.acro li {
  display: grid;
  grid-template-columns: 56px 1fr;
  align-items: baseline;
  column-gap: var(--space-lg);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--navy-ink) 6%, var(--paper));
  border-left: 4px solid var(--navy-ink);
}
.acro b {
  grid-row: span 2;
  align-self: center;
  font-size: 2.4rem;
  line-height: 1;
  color: var(--navy-ink);
  text-align: center;
}
.acro-t {
  font-weight: 700;
}
.acro-d {
  grid-column: 2;
  font-size: var(--text-small);
  color: var(--muted);
}
@media (min-width: 720px) {
  .acro {
    grid-template-columns: 1fr 1fr;
  }
}