@font-face {
  font-family: "Pretendard";
  src: url("./assets/axforum-pretendard.ttf") format("truetype");
  font-style: normal;
  font-weight: 45 930;
  font-display: swap;
}

:root {
  color-scheme: dark;
  --loop-accent: #7800FF;
  --purple-deep: #4E00AE;
  --loop-highlight: #C869FF;
  --loop-cyan: var(--loop-highlight);
  --loop-surface: #130B1E;
  --loop-edge: #291A3C;
  --loop-line: rgba(255, 255, 255, 0.14);
  --loop-card: linear-gradient(120deg, #8C2BFF, #4E00AE);
  --loop-glow: rgba(120, 0, 255, 0.2);
  --loop-tread: rgb(var(--highlight-rgb) / 0.32);
  --loop-inner: rgba(200, 105, 255, 0.4);

  --bg: #071019;
  --bg-deep: #03070c;
  --surface: #0d1924;
  --surface-light: #132432;
  --paper: #f4f0e7;
  --ink: #071019;
  --text: #f7f7f3;
  --muted: #9baab5;
  --muted-bright: #c6d0d7;
  --line: rgba(210, 229, 239, 0.15);
  --line-strong: rgba(210, 229, 239, 0.34);
  --highlight: var(--loop-highlight);
  --highlight-soft: var(--loop-highlight);
  --secondary: var(--loop-highlight);
  --highlight-rgb: 200 105 255;
  --secondary-rgb: 200 105 255;
  --glow-a: rgb(var(--secondary-rgb) / 0.075);
  --glow-b: rgb(var(--highlight-rgb) / 0.06);
  --hero-glow: rgb(var(--secondary-rgb) / 0.18);
  --accent-glow: rgb(var(--highlight-rgb) / 0.24);
  --hero-scrim-start: rgb(3 7 12 / 0.98);
  --hero-scrim-end: rgb(7 16 25 / 0.76);
  --site-header-bg: rgb(7 16 25 / 0.88);
  --paper-accent: var(--purple-deep);
  --paper-accent-number: var(--purple-deep);
  --paper-accent-strong: var(--purple-deep);
  --paper-accent-meta: var(--purple-deep);
  --paper-accent-photo: var(--purple-deep);
  --paper-accent-wash: rgb(var(--highlight-rgb) / 0.13);
  --coral: #ff7c68;
  --page: 1240px;
  --radius-lg: 30px;
  --radius-md: 20px;
  --shadow: 0 32px 90px rgba(0, 0, 0, 0.32);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: clip;
  background:
    radial-gradient(circle at 8% 7%, var(--glow-a), transparent 27rem),
    radial-gradient(circle at 94% 28%, var(--glow-b), transparent 30rem),
    var(--bg);
  color: var(--text);
  font-family: Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-weight: 520;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  position: fixed;
  z-index: -1;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.022) 1px, transparent 1px);
  background-size: 48px 48px;
  content: "";
  pointer-events: none;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  color: inherit;
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  border: 0;
  cursor: pointer;
}

img {
  display: block;
  max-width: 100%;
}

.skip-link {
  position: fixed;
  z-index: 9999;
  top: 12px;
  left: 12px;
  padding: 12px 18px;
  border-radius: 999px;
  background: var(--highlight);
  color: var(--ink);
  font-weight: 900;
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

:focus-visible {
  outline: 3px solid var(--secondary);
  outline-offset: 4px;
}

.section-shell {
  width: min(calc(100% - 48px), var(--page));
  margin-inline: auto;
}

.section {
  position: relative;
  padding-block: 120px;
  scroll-margin-top: 120px;
}

.preview-banner {
  position: relative;
  z-index: 60;
  border-bottom: 1px solid rgb(var(--highlight-rgb) / 0.22);
  background: var(--highlight);
  color: var(--ink);
}

.preview-banner__inner {
  display: flex;
  width: min(calc(100% - 48px), var(--page));
  min-height: 38px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-inline: auto;
  padding-block: 7px;
  font-size: 12px;
  line-height: 1.4;
}

.preview-banner strong {
  margin-right: 8px;
  font-weight: 930;
}

.preview-banner a {
  flex: 0 0 auto;
  font-weight: 850;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.site-header {
  position: sticky;
  z-index: 50;
  top: 0;
  border-bottom: 1px solid var(--line);
  background: var(--site-header-bg);
  backdrop-filter: blur(20px);
}

.site-header__inner {
  display: flex;
  width: min(calc(100% - 48px), var(--page));
  min-height: 76px;
  align-items: center;
  gap: 28px;
  margin-inline: auto;
}

.brand {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 11px;
  font-size: 19px;
  font-weight: 880;
  letter-spacing: -0.04em;
}

.brand img {
  width: 40px;
  height: 40px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 12px;
  box-shadow: 0 9px 32px rgb(var(--secondary-rgb) / 0.17);
}

.brand b {
  color: var(--highlight);
  font-weight: 930;
}

.site-nav {
  display: flex;
  min-width: 0;
  align-items: center;
  justify-content: center;
  gap: 3px;
  margin-inline: auto;
}

.site-nav a {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  padding: 8px 13px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 750;
  white-space: nowrap;
}

.site-nav a:hover,
.site-nav a[aria-current="location"] {
  background: rgba(255, 255, 255, 0.065);
  color: var(--text);
}

.header-cta {
  display: inline-flex;
  min-height: 46px;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 0 19px;
  border-radius: 999px;
  background: var(--highlight);
  color: var(--ink);
  font-size: 13px;
  font-weight: 900;
}

.header-cta:hover,
.header-cta:focus-visible {
  background: var(--highlight-soft);
}

.kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  color: var(--highlight);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.15em;
}

.kicker > span {
  width: 28px;
  height: 1px;
  background: currentColor;
}

.section-heading h2,
.section-heading h3 {
  margin: 0;
  font-weight: 900;
  line-height: 1.11;
  letter-spacing: -0.055em;
  word-break: keep-all;
}

.section-heading h2 {
  font-size: clamp(38px, 5vw, 66px);
}

.section-heading h3 {
  font-size: clamp(32px, 4vw, 54px);
}

.section-heading > p:last-child {
  max-width: 560px;
  margin: 25px 0 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.75;
  word-break: keep-all;
}

.section-heading--center {
  max-width: 820px;
  margin-inline: auto;
  text-align: center;
}

.section-heading--center .kicker {
  justify-content: center;
}

.section-heading--center > p:last-child {
  margin-inline: auto;
}

.section-heading--split {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.72fr);
  align-items: end;
  gap: 80px;
}

.section-heading--split > p {
  margin: 0 0 5px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.75;
  word-break: keep-all;
}

.hero {
  min-height: calc(100svh - 114px);
  padding: 0;
  overflow: hidden;
  background:
    linear-gradient(120deg, var(--hero-scrim-start), var(--hero-scrim-end)),
    radial-gradient(circle at 72% 46%, var(--hero-glow), transparent 28rem);
}

.hero__glow {
  position: absolute;
  top: 8%;
  right: -14%;
  width: 700px;
  height: 700px;
  border: 1px solid rgb(var(--secondary-rgb) / 0.13);
  border-radius: 50%;
  box-shadow:
    0 0 0 90px rgb(var(--secondary-rgb) / 0.025),
    0 0 0 180px rgb(var(--secondary-rgb) / 0.018);
  pointer-events: none;
}

.hero__grid {
  display: grid;
  min-height: calc(100svh - 160px);
  padding-block: 84px 105px;
  grid-template-columns: minmax(0, 1.17fr) minmax(380px, 0.83fr);
  align-items: center;
  gap: 76px;
}

.hero__copy {
  position: relative;
  z-index: 2;
}

.hero h1 {
  max-width: 830px;
  margin: 0;
  font-size: clamp(52px, 6.2vw, 88px);
  font-weight: 920;
  line-height: 1.02;
  letter-spacing: -0.068em;
  word-break: keep-all;
}

.hero h1 em {
  color: var(--highlight);
  font-style: normal;
}

.hero__brandline {
  margin: 30px 0 0;
  color: var(--muted-bright);
  font-size: clamp(20px, 2vw, 28px);
  font-weight: 680;
  letter-spacing: -0.035em;
}

.hero__brandline strong {
  color: var(--text);
  font-weight: 920;
}

.hero__signature {
  margin: 10px 0 0;
  color: var(--highlight);
  font-size: clamp(19px, 2.4vw, 30px);
  font-weight: 760;
  letter-spacing: -0.01em;
  line-height: 1.25;
  white-space: nowrap;
}

.hero__description {
  max-width: 690px;
  margin: 23px 0 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.75;
  word-break: keep-all;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 11px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 54px;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 0 23px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 880;
}

.button--primary {
  background: var(--highlight);
  color: var(--ink);
}

.button--primary:hover,
.button--primary:focus-visible {
  background: var(--highlight-soft);
}

.button--ghost {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.035);
}

.button--ghost:hover,
.button--ghost:focus-visible {
  border-color: var(--secondary);
  background: rgb(var(--secondary-rgb) / 0.07);
}

.hero-system {
  position: relative;
  width: min(100%, 480px);
  aspect-ratio: 1;
  justify-self: end;
}

.hero-system::before,
.hero-system::after {
  position: absolute;
  inset: 50%;
  border: 1px solid rgb(var(--secondary-rgb) / 0.18);
  border-radius: 50%;
  content: "";
  transform: translate(-50%, -50%);
}

.hero-system::before {
  width: 78%;
  height: 78%;
}

.hero-system::after {
  width: 48%;
  height: 48%;
  border-style: dashed;
}

.hero-system__rail {
  position: absolute;
  inset: 9%;
  border: 1px dashed rgb(var(--highlight-rgb) / 0.22);
  border-radius: 42%;
  transform: rotate(28deg);
}

.hero-system__core {
  position: absolute;
  z-index: 3;
  inset: 50% auto auto 50%;
  display: grid;
  width: 132px;
  height: 132px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  background: var(--highlight);
  box-shadow: 0 0 80px var(--accent-glow);
  color: var(--ink);
  transform: translate(-50%, -50%);
}

.hero-system__core span {
  align-self: end;
  font-size: 44px;
  font-weight: 930;
  letter-spacing: -0.06em;
}

.hero-system__core small {
  align-self: start;
  margin-top: 2px;
  font-family: ui-monospace, monospace;
  font-size: 8px;
  font-weight: 900;
  letter-spacing: 0.16em;
}

.system-node {
  position: absolute;
  z-index: 4;
  display: grid;
  min-width: 122px;
  padding: 16px 18px;
  border: 1px solid var(--line-strong);
  border-radius: 17px;
  background: rgba(13, 25, 36, 0.94);
  box-shadow: var(--shadow);
}

.system-node > span {
  color: var(--highlight);
  font-family: ui-monospace, monospace;
  font-size: 10px;
  letter-spacing: 0.1em;
}

.system-node strong {
  margin-top: 8px;
  font-size: 19px;
  font-weight: 900;
}

.system-node small {
  margin-top: 3px;
  color: var(--muted);
  font-size: 11px;
}

.system-node--one {
  top: 6%;
  left: 12%;
}

.system-node--two {
  top: 47%;
  right: -2%;
}

.system-node--three {
  bottom: 2%;
  left: 6%;
}

.hero__ticker {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  display: flex;
  min-width: max-content;
  gap: 70px;
  padding: 17px 35px;
  border-top: 1px solid var(--line);
  background: rgba(3, 7, 12, 0.74);
  color: rgba(255, 255, 255, 0.33);
  font-family: ui-monospace, monospace;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.22em;
  animation: ticker 32s linear infinite;
}

@keyframes ticker {
  to {
    transform: translateX(-33.333%);
  }
}

.problem {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
}

.problem .kicker {
  color: var(--paper-accent);
}

.problem .section-heading > p:last-child {
  color: #58636b;
}

.problem-grid {
  display: grid;
  margin-top: 66px;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid rgba(7, 16, 25, 0.22);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.problem-grid article {
  min-width: 0;
  min-height: 250px;
  padding: 32px;
  background: rgba(255, 255, 255, 0.38);
}

.problem-grid article + article {
  border-left: 1px solid rgba(7, 16, 25, 0.17);
}

.problem-grid__number {
  color: var(--paper-accent-number);
  font-family: ui-monospace, monospace;
  font-size: 12px;
  font-weight: 900;
}

.problem-grid h3 {
  margin: 60px 0 12px;
  font-size: 22px;
  font-weight: 900;
  letter-spacing: -0.035em;
}

.problem-grid p {
  margin: 0;
  color: #58636b;
  font-size: 15px;
  line-height: 1.7;
  word-break: keep-all;
}

.program {
  background: var(--bg);
}

.program-grid {
  display: grid;
  margin-top: 62px;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.program-card {
  display: flex;
  min-width: 0;
  min-height: 520px;
  flex-direction: column;
  padding: 29px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(155deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.012)),
    var(--surface);
  transition: border-color 180ms ease, transform 180ms ease;
}

.program-card:hover {
  border-color: rgb(var(--highlight-rgb) / 0.45);
  transform: translateY(-4px);
}

.program-card__topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.program-card__topline > span {
  color: var(--highlight);
  font-family: ui-monospace, monospace;
  font-size: 12px;
  font-weight: 900;
}

.program-card__topline small {
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted-bright);
  font-size: 11px;
  font-weight: 750;
}

.program-card h3 {
  margin: 72px 0 32px;
  font-size: clamp(28px, 3vw, 39px);
  font-weight: 900;
  letter-spacing: -0.05em;
}

.program-card dl {
  display: grid;
  gap: 18px;
  margin: 0;
}

.program-card dl > div {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 13px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.program-card dt {
  color: var(--muted);
  font-size: 11px;
  font-weight: 750;
}

.program-card dd {
  margin: 0;
  color: var(--muted-bright);
  font-size: 13px;
  line-height: 1.58;
  word-break: keep-all;
}

.program-card > a {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
  margin-top: auto;
  padding-top: 28px;
  color: var(--highlight);
  font-size: 13px;
  font-weight: 850;
}

.package {
  border-top: 1px solid var(--line);
  background: var(--bg-deep);
}

.package-grid {
  display: grid;
  margin-top: 64px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.package-card {
  display: flex;
  min-width: 0;
  min-height: 600px;
  flex-direction: column;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, #132432, #0b151f 65%);
}

.package-card:nth-child(2),
.package-card:nth-child(3) {
  background: linear-gradient(145deg, #162337, #0b151f 65%);
}

.package-card__heading {
  display: flex;
  align-items: flex-start;
  gap: 20px;
}

.package-card__heading > span {
  display: grid;
  width: 46px;
  height: 46px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid rgb(var(--highlight-rgb) / 0.4);
  border-radius: 50%;
  color: var(--highlight);
  font-family: ui-monospace, monospace;
  font-size: 11px;
  font-weight: 900;
}

.package-card__heading small {
  color: var(--muted);
  font-family: ui-monospace, monospace;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.package-card h3 {
  margin: 5px 0 0;
  font-size: clamp(30px, 3.5vw, 44px);
  font-weight: 920;
  letter-spacing: -0.055em;
}

.package-card > p {
  max-width: 510px;
  margin: 25px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.65;
  word-break: keep-all;
}

.package-card__facts {
  display: grid;
  margin: 35px 0 0;
  grid-template-columns: repeat(3, 1fr);
  border-block: 1px solid var(--line);
}

.package-card__facts div {
  min-width: 0;
  padding: 18px 10px 18px 0;
}

.package-card__facts div + div {
  padding-left: 16px;
  border-left: 1px solid var(--line);
}

.package-card__facts dt {
  color: var(--muted);
  font-size: 10px;
  font-weight: 760;
}

.package-card__facts dd {
  margin: 8px 0 0;
  font-size: 15px;
  font-weight: 850;
  word-break: keep-all;
}

.package-card__includes {
  margin-top: 27px;
}

.package-card__includes strong {
  color: var(--muted-bright);
  font-size: 11px;
  font-weight: 850;
}

.package-card__includes ul {
  display: grid;
  gap: 10px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.package-card__includes li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--muted-bright);
  font-size: 13px;
  line-height: 1.5;
}

.package-card__includes li::before {
  flex: 0 0 auto;
  color: var(--highlight);
  content: "↳";
}

.package-card__button {
  display: flex;
  min-height: 54px;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: auto;
  padding: 0 21px;
  border-radius: 14px;
  background: var(--highlight);
  color: var(--ink);
  font-size: 13px;
  font-weight: 900;
}

.package-card__button:hover,
.package-card__button:focus-visible {
  background: var(--highlight-soft);
}

.learning-loop {
  /* 운영 보라 팔레트 활성: 원 요청의 운영 화면 톤앤매너 준용. */
  overflow: hidden;
  border-block: 1px solid var(--line);
  background:
    radial-gradient(ellipse at 50% 55%, var(--loop-glow), transparent 65%),
    var(--loop-surface);
}

.learning-loop__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-items: center;
  gap: 48px;
}

.learning-loop .kicker,
.learning-loop .loop-diagram li > span {
  color: var(--loop-cyan);
}

.learning-loop .kicker > span {
  background: var(--loop-highlight);
}

.loop-viewport {
  min-width: 0;
}

.loop-belt,
.loop-core {
  display: none;
}

.loop-diagram {
  position: relative;
  display: grid;
  margin: 0;
  padding: 56px;
  grid-template-columns: repeat(2, 1fr);
  gap: 50px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: rgba(3, 7, 12, 0.35);
  list-style: none;
}

.loop-diagram::before,
.loop-diagram::after {
  position: absolute;
  inset: 50%;
  content: "";
  transform: translate(-50%, -50%);
}

.loop-diagram::before {
  width: 34%;
  height: 34%;
  border: 1px dashed rgb(var(--highlight-rgb) / 0.45);
  border-radius: 50%;
}

.loop-diagram::after {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--highlight);
  box-shadow: 0 0 34px var(--highlight);
}

.loop-diagram li {
  position: relative;
  z-index: 2;
  min-width: 0;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(13, 25, 36, 0.92);
}

.loop-diagram li > span {
  color: var(--highlight);
  font-family: ui-monospace, monospace;
  font-size: 10px;
  font-weight: 900;
}

.loop-diagram strong,
.loop-diagram small {
  display: block;
}

.loop-diagram strong {
  margin-top: 16px;
  font-size: 18px;
  font-weight: 900;
  letter-spacing: -0.03em;
}

.loop-diagram small {
  margin-top: 8px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.55;
  word-break: keep-all;
}

.speaker {
  background: var(--paper);
  color: var(--ink);
}

.speaker__grid {
  display: grid;
  grid-template-columns: minmax(320px, 0.72fr) minmax(0, 1.28fr);
  gap: 24px;
}

.speaker .kicker {
  color: var(--paper-accent-strong);
}

.speaker-card,
.topic-panel {
  min-width: 0;
  border: 1px solid rgba(7, 16, 25, 0.17);
  border-radius: var(--radius-lg);
}

.speaker-card {
  display: flex;
  min-height: 730px;
  flex-direction: column;
  padding: 36px;
  background: #101f2c;
  color: var(--text);
}

.speaker-card .kicker {
  color: var(--highlight);
}

.speaker-card__portrait {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  object-fit: contain;
  margin: 22px 0 30px;
  border-radius: 22px;
}

.speaker-card__role {
  margin: 0;
  color: var(--highlight);
  font-size: 12px;
  font-weight: 750;
  line-height: 1.55;
}

.speaker-card h2 {
  margin: 11px 0 18px;
  font-size: 42px;
  font-weight: 920;
  letter-spacing: -0.055em;
}

.speaker-card > p:not(.kicker):not(.speaker-card__role) {
  margin: 0;
  color: var(--muted-bright);
  font-size: 14px;
  line-height: 1.76;
  word-break: keep-all;
}

.text-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
  margin-top: auto;
  padding-top: 30px;
  color: var(--highlight);
  font-size: 13px;
  font-weight: 880;
}

.topic-panel {
  padding: 44px;
  background: rgba(255, 255, 255, 0.42);
}

.topic-panel .section-heading h3 {
  font-size: clamp(32px, 4.5vw, 54px);
}

.topic-grid {
  display: grid;
  margin-top: 51px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid rgba(7, 16, 25, 0.2);
}

.topic-grid article {
  display: grid;
  min-width: 0;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  padding: 23px 16px 24px 0;
  border-bottom: 1px solid rgba(7, 16, 25, 0.16);
}

.topic-grid article:nth-child(even) {
  padding-left: 20px;
  border-left: 1px solid rgba(7, 16, 25, 0.16);
}

.topic-grid article > span {
  color: var(--paper-accent-meta);
  font-family: ui-monospace, monospace;
  font-size: 10px;
  font-weight: 900;
}

.topic-grid h4 {
  margin: 0;
  font-size: 16px;
  font-weight: 900;
  line-height: 1.35;
  letter-spacing: -0.03em;
  word-break: keep-all;
}

.topic-grid p {
  margin: 9px 0 0;
  color: #58636b;
  font-size: 12px;
  line-height: 1.6;
  word-break: keep-all;
}

.nanoventure {
  border-bottom: 1px solid var(--line);
  background: #071421;
}

.book-visual {
  margin: 66px 0 0;
}

.book-visual__frame {
  position: relative;
  overflow-x: auto;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: #061225;
  box-shadow: var(--shadow);
  scrollbar-color: var(--highlight) rgba(255, 255, 255, 0.08);
}

.book-visual__frame img {
  width: 100%;
  height: auto;
  min-width: 900px;
}

.book-visual figcaption {
  display: none;
  margin-top: 12px;
  color: var(--muted);
  font-size: 11px;
}

.circulation {
  display: grid;
  margin-top: 28px;
  grid-template-columns: repeat(5, auto);
  align-items: center;
  gap: 20px;
}

.circulation > div {
  min-width: 0;
  padding: 23px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.035);
}

.circulation > div > span,
.subsection-heading span,
.featured-series__intro span,
.series-toolbar > div > span,
.cardnews-slot__caption > span,
.voice-card > div > span {
  color: var(--highlight);
  font-family: ui-monospace, monospace;
  font-size: 9px;
  font-weight: 850;
  letter-spacing: 0.13em;
}

.circulation strong,
.circulation small {
  display: block;
}

.circulation strong {
  margin-top: 10px;
  font-size: 20px;
  font-weight: 900;
  letter-spacing: -0.035em;
}

.circulation small {
  margin-top: 8px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.5;
  word-break: keep-all;
}

.circulation__arrow {
  color: var(--highlight);
  font-size: 24px;
}

.card-news {
  background: var(--bg-deep);
}

.featured-series {
  display: grid;
  margin-top: 66px;
  padding: 38px;
  grid-template-columns: minmax(250px, 0.63fr) minmax(320px, 0.77fr);
  align-items: center;
  gap: 70px;
  border: 1px solid rgb(var(--highlight-rgb) / 0.3);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 82% 26%, rgb(var(--highlight-rgb) / 0.12), transparent 22rem),
    var(--surface);
}

.featured-series__intro h3,
.series-toolbar h3 {
  margin: 10px 0 0;
  font-size: clamp(31px, 4vw, 50px);
  font-weight: 920;
  letter-spacing: -0.055em;
}

.featured-series__intro > p {
  max-width: 440px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

.featured-series__intro button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  gap: 30px;
  margin-top: 34px;
  padding: 0 21px;
  border-radius: 999px;
  background: var(--highlight);
  color: var(--ink);
  font-size: 13px;
  font-weight: 900;
}

.featured-series__intro button:hover,
.featured-series__intro button:focus-visible {
  background: var(--highlight-soft);
}

.featured-series__cover {
  width: min(100%, 510px);
  justify-self: end;
}

.series-slide {
  min-width: 0;
  margin: 0;
}

.series-slide__image {
  overflow: hidden;
  aspect-ratio: 1;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #02070d;
}

.series-slide__image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.series-slide figcaption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: 13px;
  color: var(--muted);
  font-family: ui-monospace, monospace;
  font-size: 9px;
  letter-spacing: 0.12em;
}

.series-slide figcaption b {
  color: var(--muted-bright);
}

.featured-series--open {
  display: block;
  padding-inline: 0;
  overflow: hidden;
}

.series-toolbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 30px;
  padding: 0 38px 30px;
}

.series-toolbar__controls {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 9px;
}

.series-toolbar__controls p {
  margin: 0 10px 0 0;
  color: var(--muted);
  font-family: ui-monospace, monospace;
  font-size: 11px;
}

.series-toolbar__controls p b {
  color: var(--highlight);
  font-size: 18px;
}

.series-toolbar__controls button {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  font-size: 17px;
}

.series-toolbar__controls button:hover,
.series-toolbar__controls button:focus-visible {
  border-color: var(--highlight);
  color: var(--highlight);
}

.series-viewport {
  display: grid;
  padding: 8px 38px 22px;
  grid-auto-columns: min(48vw, 520px);
  grid-auto-flow: column;
  gap: 18px;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  scroll-padding-inline: 38px;
  scroll-snap-type: inline mandatory;
  scrollbar-color: var(--highlight) rgba(255, 255, 255, 0.08);
}

.series-viewport .series-slide {
  scroll-snap-align: start;
}

.subsection-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 40px;
  margin-top: 90px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.subsection-heading h3 {
  margin: 8px 0 0;
  font-size: 29px;
  font-weight: 900;
  letter-spacing: -0.045em;
}

.subsection-heading > p {
  max-width: 470px;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
  text-align: right;
}

.cardnews-grid {
  display: grid;
  margin-top: 24px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.cardnews-slot {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
  overflow: hidden;
}

.cardnews-slot__visual {
  aspect-ratio: 4 / 5;
  border-bottom: 1px solid var(--line);
  background: #09121a;
}

.cardnews-slot__visual > img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.slot-placeholder {
  position: relative;
  display: grid;
  width: 100%;
  height: 100%;
  place-items: center;
  background:
    linear-gradient(135deg, transparent 49.8%, rgba(255, 255, 255, 0.055) 50%, transparent 50.2%),
    linear-gradient(45deg, transparent 49.8%, rgba(255, 255, 255, 0.055) 50%, transparent 50.2%),
    radial-gradient(circle, rgb(var(--secondary-rgb) / 0.08), transparent 55%);
}

.slot-placeholder::before {
  position: absolute;
  inset: 18px;
  border: 1px dashed rgba(255, 255, 255, 0.14);
  border-radius: 13px;
  content: "";
}

.slot-placeholder i {
  position: absolute;
  width: 82px;
  height: 82px;
  border: 1px solid rgb(var(--highlight-rgb) / 0.2);
  border-radius: 50%;
}

.slot-placeholder b {
  z-index: 1;
  color: var(--highlight);
  font-family: ui-monospace, monospace;
  font-size: 29px;
}

.slot-placeholder span {
  position: absolute;
  bottom: 36px;
  color: rgba(255, 255, 255, 0.31);
  font-family: ui-monospace, monospace;
  font-size: 8px;
  letter-spacing: 0.2em;
}

.cardnews-slot__caption {
  padding: 21px;
}

.cardnews-slot__caption h3 {
  margin: 9px 0 0;
  font-size: 17px;
  font-weight: 880;
  letter-spacing: -0.025em;
}

.cardnews-slot__caption p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.55;
}

.forum-poster {
  border-top: 1px solid var(--line);
  background:
    radial-gradient(circle at 12% 72%, rgb(var(--highlight-rgb) / 0.08), transparent 26rem),
    var(--bg-deep);
}

.forum-poster__grid {
  display: grid;
  grid-template-areas:
    "heading figure"
    "facts figure"
    "details details"
    "actions actions";
  grid-template-columns: minmax(0, 1fr) minmax(0, 380px);
  align-items: start;
  gap: 34px 70px;
}

.forum-poster__heading {
  grid-area: heading;
}

.forum-poster__heading > p:not(.kicker) {
  max-width: 650px;
  margin: 25px 0 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.75;
  word-break: keep-all;
}

.forum-poster__heading > .forum-poster__lead {
  color: var(--highlight);
  font-size: clamp(20px, 2.2vw, 28px);
  font-weight: 850;
  line-height: 1.45;
  letter-spacing: -0.035em;
}

.forum-poster__heading blockquote {
  max-width: 680px;
  margin: 28px 0 0;
  padding: 20px 24px;
  border-left: 3px solid var(--highlight);
  background: rgb(var(--highlight-rgb) / 0.08);
  color: var(--muted-bright);
  font-size: 16px;
  font-weight: 650;
  line-height: 1.72;
  word-break: keep-all;
}

.forum-facts {
  display: grid;
  grid-area: facts;
  margin: 0;
  border-block: 1px solid var(--line-strong);
}

.forum-facts > div {
  display: grid;
  padding: 15px 0;
  grid-template-columns: 112px minmax(0, 1fr);
  gap: 18px;
  border-bottom: 1px solid var(--line);
}

.forum-facts > div:last-child {
  border-bottom: 0;
}

.forum-facts dt,
.forum-facts dd {
  margin: 0;
}

.forum-facts dt {
  color: var(--highlight);
  font-size: 12px;
  font-weight: 850;
}

.forum-facts dd {
  color: var(--text);
  font-size: 14px;
  font-weight: 650;
  line-height: 1.6;
  white-space: pre-line;
  word-break: keep-all;
}

.forum-poster__details {
  display: grid;
  grid-area: details;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.forum-detail {
  min-width: 0;
  padding: clamp(24px, 3vw, 38px);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, rgb(var(--highlight-rgb) / 0.075), rgb(var(--secondary-rgb) / 0.025));
}

.forum-detail--model {
  grid-column: 1 / -1;
}

.forum-detail__eyebrow {
  margin: 0;
  color: var(--highlight);
  font-size: 11px;
  font-weight: 850;
  letter-spacing: 0.08em;
}

.forum-detail h3 {
  margin: 9px 0 0;
  color: var(--text);
  font-size: clamp(22px, 2.4vw, 32px);
  font-weight: 900;
  line-height: 1.28;
  letter-spacing: -0.035em;
  word-break: keep-all;
}

.forum-principles,
.forum-task-grid,
.forum-talk__topics,
.forum-talk__credentials {
  margin: 0;
  padding: 0;
  list-style: none;
}

.forum-principles {
  display: flex;
  margin-top: 20px;
  flex-wrap: wrap;
  gap: 8px;
}

.forum-principles li,
.forum-talk__credentials li {
  padding: 7px 11px;
  border: 1px solid rgb(var(--highlight-rgb) / 0.28);
  border-radius: 999px;
  background: rgb(var(--highlight-rgb) / 0.09);
  color: var(--highlight-soft);
  font-size: 12px;
  font-weight: 750;
}

.forum-detail__description,
.forum-talk__experience,
.forum-detail--benefit > p {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
  word-break: keep-all;
}

.forum-task-grid {
  display: grid;
  margin-top: 24px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.forum-task-grid li {
  display: flex;
  min-width: 0;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 13px 14px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: rgb(255 255 255 / 0.035);
}

.forum-task-grid strong {
  min-width: 0;
  color: var(--text);
  font-size: 13px;
  line-height: 1.4;
  word-break: keep-all;
}

.forum-task-grid span {
  flex: 0 0 auto;
  color: var(--highlight);
  font-family: ui-monospace, monospace;
  font-size: 10px;
  font-weight: 850;
}

.forum-talk__speaker {
  display: flex;
  margin-top: 16px;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8px;
}

.forum-talk__speaker strong {
  color: var(--text);
  font-size: 24px;
  font-weight: 900;
}

.forum-talk__speaker span {
  color: var(--muted-bright);
  font-size: 13px;
  font-weight: 700;
}

.forum-detail--talk blockquote {
  margin: 20px 0 0;
  padding: 17px 18px;
  border-left: 3px solid var(--highlight);
  background: rgb(var(--highlight-rgb) / 0.08);
  color: var(--muted-bright);
  font-size: 14px;
  font-weight: 650;
  line-height: 1.65;
  word-break: keep-all;
}

.forum-talk__topics {
  display: grid;
  margin-top: 20px;
  counter-reset: talk-topic;
  gap: 10px;
}

.forum-talk__topics li {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 8px;
  color: var(--muted-bright);
  font-size: 13px;
  line-height: 1.5;
  counter-increment: talk-topic;
}

.forum-talk__topics li::before {
  color: var(--highlight);
  content: counter(talk-topic, decimal-leading-zero);
  font-family: ui-monospace, monospace;
  font-size: 10px;
  font-weight: 850;
}

.forum-talk__credentials {
  display: flex;
  margin-top: 22px;
  flex-wrap: wrap;
  gap: 7px;
}

.forum-detail--benefit {
  background:
    radial-gradient(circle at 90% 10%, rgb(var(--secondary-rgb) / 0.11), transparent 15rem),
    var(--surface);
}

.forum-detail--benefit h3 {
  color: var(--highlight-soft);
}

.forum-detail--benefit > p:last-child {
  color: var(--secondary);
  font-weight: 750;
}

.forum-poster__actions {
  display: flex;
  grid-area: actions;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px 26px;
}

.forum-poster__figure {
  grid-area: figure;
  margin: 0;
}

.forum-poster__trigger {
  display: block;
  width: 100%;
  padding: 0;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-md);
  background: var(--surface);
  overflow: hidden;
}

.forum-poster__trigger img {
  width: 100%;
  height: auto;
  transition: transform 220ms ease;
}

.forum-poster__trigger:hover img,
.forum-poster__trigger:focus-visible img {
  transform: scale(1.012);
}

.forum-poster__trigger:focus-visible {
  outline-offset: 5px;
}

.forum-poster__figure figcaption {
  margin-top: 12px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.5;
  text-align: center;
}

.cases {
  border-top: 1px solid var(--line);
  background: var(--bg);
}

.case-grid {
  display: grid;
  margin-top: 64px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.case-card {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  overflow: hidden;
}

.case-card__visual {
  position: relative;
  display: grid;
  height: 350px;
  padding: 16px;
  grid-template-columns: minmax(0, 1.6fr) minmax(120px, 0.72fr);
  gap: 8px;
  background: #04090e;
}

.case-card__image {
  width: 100%;
  height: 100%;
  border-radius: 13px;
  object-fit: cover;
}

.case-card__visual > span {
  position: absolute;
  right: 27px;
  bottom: 27px;
  padding: 8px 11px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  background: rgba(3, 7, 12, 0.82);
  color: var(--highlight);
  font-family: ui-monospace, monospace;
  font-size: 9px;
  font-weight: 850;
  letter-spacing: 0.12em;
  backdrop-filter: blur(12px);
}

.case-card__caption {
  padding: 23px 25px 25px;
}

.case-card__caption h3 {
  margin: 0;
  font-size: 20px;
  font-weight: 900;
  letter-spacing: -0.035em;
}

.case-card__caption p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.55;
}

.reader-voices {
  border-block: 1px solid rgba(7, 16, 25, 0.16);
  background: var(--paper);
  color: var(--ink);
}

.reader-voices .kicker {
  color: var(--paper-accent-strong);
}

.reader-voices .section-heading--split > p {
  color: #58636b;
}

.voice-grid {
  display: grid;
  margin-top: 64px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 15px;
}

.voice-card {
  display: grid;
  min-width: 0;
  min-height: 250px;
  padding: 18px;
  grid-template-columns: 150px minmax(0, 1fr);
  align-items: center;
  gap: 24px;
  border: 1px solid rgba(7, 16, 25, 0.17);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.42);
}

.voice-card__photo {
  position: relative;
  display: grid;
  height: 100%;
  min-height: 208px;
  place-items: center;
  border-radius: 14px;
  background:
    linear-gradient(135deg, transparent 49.7%, rgba(7, 16, 25, 0.08) 50%, transparent 50.3%),
    #dfe3d8;
  overflow: hidden;
}

.voice-card__photo::before {
  position: absolute;
  inset: 12px;
  border: 1px dashed rgba(7, 16, 25, 0.18);
  border-radius: 10px;
  content: "";
}

.voice-card__photo span {
  z-index: 1;
  color: var(--paper-accent-photo);
  font-family: ui-monospace, monospace;
  font-size: 24px;
  font-weight: 900;
}

.voice-card__photo i {
  position: absolute;
  bottom: 22px;
  color: rgba(7, 16, 25, 0.35);
  font-family: ui-monospace, monospace;
  font-size: 7px;
  letter-spacing: 0.2em;
}

.voice-card__photo i::after {
  content: "PHOTO SLOT";
}

.voice-card > div > span {
  color: var(--paper-accent-meta);
}

.voice-card h3 {
  margin: 12px 0 0;
  font-size: 22px;
  font-weight: 900;
  letter-spacing: -0.04em;
}

.voice-card blockquote {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.6;
}

.voice-card p {
  margin: 10px 0 0;
  color: #58636b;
  font-size: 12px;
  line-height: 1.6;
  word-break: keep-all;
}

.inquiry {
  background:
    radial-gradient(circle at 82% 50%, rgb(var(--highlight-rgb) / 0.17), transparent 25rem),
    var(--bg-deep);
}

.inquiry-card {
  display: flex;
  min-height: 420px;
  align-items: end;
  justify-content: space-between;
  gap: 70px;
  padding: 60px;
  border: 1px solid rgb(var(--highlight-rgb) / 0.35);
  border-radius: 36px;
  background: linear-gradient(135deg, rgb(var(--highlight-rgb) / 0.08), rgb(var(--secondary-rgb) / 0.025));
  box-shadow: var(--shadow);
}

.inquiry-card h2 {
  margin: 0;
  font-size: clamp(42px, 5.4vw, 72px);
  font-weight: 920;
  line-height: 1.05;
  letter-spacing: -0.065em;
}

.inquiry-card > div > p:last-child {
  max-width: 650px;
  margin: 26px 0 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.72;
  word-break: keep-all;
}

.button--light {
  min-height: 62px;
  flex: 0 0 auto;
  padding-inline: 28px;
  background: var(--paper);
  color: var(--ink);
}

.button--light:hover,
.button--light:focus-visible {
  background: var(--highlight);
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #020509;
}

.site-footer__inner {
  display: flex;
  min-height: 170px;
  align-items: center;
  justify-content: space-between;
  gap: 50px;
}

.site-footer__inner > div:first-child {
  display: grid;
  gap: 8px;
}

.site-footer strong {
  font-size: 18px;
  font-weight: 900;
}

.site-footer span,
.site-footer__links {
  color: var(--muted);
  font-size: 12px;
}

.site-footer .site-footer__signature {
  color: var(--highlight);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px 22px;
}

.site-footer__links a:hover,
.site-footer__links a:focus-visible {
  color: var(--highlight);
}

.noscript-notice {
  position: fixed;
  z-index: 100;
  right: 16px;
  bottom: 16px;
  left: 16px;
  margin: 0;
  padding: 14px 18px;
  border-radius: 12px;
  background: var(--coral);
  color: #180604;
  font-size: 13px;
  font-weight: 800;
  text-align: center;
}

@media (max-width: 1100px) {
  .site-header__inner {
    gap: 16px;
  }

  .site-nav a {
    padding-inline: 9px;
  }

  .hero__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(330px, 0.75fr);
    gap: 30px;
  }

  .program-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .program-card:last-child {
    grid-column: 1 / -1;
    min-height: 450px;
  }

  .learning-loop__grid {
    gap: 45px;
  }

  .loop-diagram {
    padding: 35px;
    gap: 28px;
  }

  .speaker__grid {
    grid-template-columns: minmax(290px, 0.6fr) minmax(0, 1.4fr);
  }

  .topic-panel {
    padding: 34px;
  }

  .circulation {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .circulation__arrow {
    justify-self: center;
    transform: rotate(90deg);
  }
}

@media (max-width: 820px) {
  .section {
    padding-block: 88px;
  }

  .site-header__inner {
    min-height: 68px;
    flex-wrap: wrap;
    padding-block: 10px;
  }

  .site-nav {
    order: 3;
    width: 100%;
    justify-content: flex-start;
    margin: 0;
    padding-bottom: 2px;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scrollbar-width: none;
  }

  .site-nav::-webkit-scrollbar {
    display: none;
  }

  .header-cta {
    margin-left: auto;
  }

  .section-heading--split {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .section-heading--split > p {
    max-width: 620px;
  }

  .hero__grid {
    grid-template-columns: 1fr;
    padding-block: 70px 130px;
  }

  .hero-system {
    width: min(86vw, 460px);
    justify-self: center;
  }

  .problem-grid {
    grid-template-columns: 1fr;
  }

  .problem-grid article {
    min-height: auto;
  }

  .problem-grid article + article {
    border-top: 1px solid rgba(7, 16, 25, 0.17);
    border-left: 0;
  }

  .problem-grid h3 {
    margin-top: 35px;
  }

  .program-grid,
  .package-grid,
  .case-grid,
  .voice-grid {
    grid-template-columns: 1fr;
  }

  .program-card:last-child {
    grid-column: auto;
  }

  .learning-loop__grid,
  .speaker__grid {
    grid-template-columns: 1fr;
  }

  .loop-diagram {
    max-width: 640px;
  }

  .speaker-card {
    min-height: auto;
  }

  .speaker-card .text-link {
    margin-top: 42px;
  }

  .featured-series {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .featured-series__cover {
    width: min(100%, 560px);
    justify-self: start;
  }

  .series-viewport {
    grid-auto-columns: min(72vw, 520px);
  }

  .cardnews-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .inquiry-card {
    min-height: 460px;
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 600px) {
  .section-shell,
  .preview-banner__inner,
  .site-header__inner {
    width: min(calc(100% - 32px), var(--page));
  }

  .section {
    padding-block: 72px;
  }

  .preview-banner__inner {
    align-items: flex-start;
    gap: 8px;
    padding-block: 8px;
  }

  .preview-banner__inner > span {
    display: grid;
    gap: 1px;
  }

  .preview-banner strong {
    margin: 0;
  }

  .preview-banner a {
    margin-top: 2px;
    font-size: 11px;
  }

  .brand {
    font-size: 17px;
  }

  .brand img {
    width: 36px;
    height: 36px;
  }

  .header-cta {
    min-height: 42px;
    padding-inline: 14px;
    font-size: 12px;
  }

  .site-nav {
    margin-inline: -2px;
  }

  .site-nav a {
    min-height: 36px;
    padding: 6px 9px;
    font-size: 12px;
  }

  .section-heading h2 {
    font-size: clamp(35px, 11vw, 48px);
  }

  .section-heading h3 {
    font-size: clamp(31px, 10vw, 42px);
  }

  .section-heading > p:last-child,
  .section-heading--split > p {
    font-size: 14px;
  }

  .hero {
    min-height: auto;
  }

  .hero__grid {
    min-height: auto;
    padding-block: 68px 110px;
  }

  .hero h1 {
    font-size: clamp(45px, 13.8vw, 62px);
    line-height: 1.04;
  }

  .hero__brandline {
    margin-top: 24px;
  }

  .hero__description {
    font-size: 15px;
  }

  .button-row .button {
    width: 100%;
  }

  .hero-system {
    width: min(94%, 390px);
  }

  .hero-system__core {
    width: 108px;
    height: 108px;
  }

  .hero-system__core span {
    font-size: 37px;
  }

  .system-node {
    min-width: 102px;
    padding: 12px;
  }

  .system-node strong {
    font-size: 16px;
  }

  .system-node small {
    font-size: 9px;
  }

  .system-node--one {
    left: 2%;
  }

  .system-node--two {
    right: -1%;
  }

  .system-node--three {
    left: 0;
  }

  .problem-grid {
    margin-top: 44px;
  }

  .problem-grid article {
    padding: 26px;
  }

  .program-grid,
  .package-grid,
  .case-grid,
  .voice-grid {
    margin-top: 44px;
  }

  .program-card {
    min-height: 500px;
    padding: 25px;
  }

  .program-card:last-child {
    min-height: 500px;
  }

  .program-card h3 {
    margin-top: 52px;
  }

  .package-card {
    min-height: 600px;
    padding: 25px;
  }

  .package-card__facts {
    grid-template-columns: 1fr;
  }

  .package-card__facts div {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 20px;
    padding: 13px 0;
  }

  .package-card__facts div + div {
    padding-left: 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .package-card__facts dd {
    margin: 0;
    text-align: right;
  }

  .loop-diagram {
    padding: 0;
    grid-template-columns: 1fr;
    gap: 10px;
    border: 0;
    border-radius: 0;
    background: transparent;
  }

  .loop-diagram::before,
  .loop-diagram::after {
    display: none;
  }

  .loop-diagram li {
    display: grid;
    grid-template-columns: 34px minmax(0, 1fr);
    align-items: center;
    gap: 0 8px;
    padding: 18px;
  }

  .loop-diagram li > span {
    grid-row: 1 / 3;
  }

  .loop-diagram strong,
  .loop-diagram small {
    margin: 0;
  }

  .loop-diagram small {
    margin-top: 5px;
  }

  .speaker-card,
  .topic-panel {
    padding: 25px;
  }


  .topic-grid {
    grid-template-columns: 1fr;
  }

  .topic-grid article,
  .topic-grid article:nth-child(even) {
    padding: 20px 0;
    border-left: 0;
  }

  .book-visual {
    margin-top: 44px;
  }

  .book-visual__frame {
    margin-right: -16px;
    border-radius: 20px 0 0 20px;
  }

  .book-visual__frame img {
    width: 900px;
    max-width: none;
  }

  .book-visual figcaption {
    display: block;
  }

  .circulation > div {
    padding: 19px;
  }

  .featured-series {
    margin-top: 44px;
    padding: 24px;
  }

  .featured-series__intro button {
    width: 100%;
    justify-content: space-between;
  }

  .featured-series--open {
    padding-inline: 0;
  }

  .series-toolbar {
    align-items: flex-start;
    padding: 0 24px 24px;
  }

  .series-toolbar h3 {
    font-size: 27px;
  }

  .series-toolbar__controls p {
    display: none;
  }

  .series-toolbar__controls button {
    width: 42px;
    height: 42px;
  }

  .series-viewport {
    padding-inline: 24px;
    grid-auto-columns: calc(100vw - 98px);
    scroll-padding-inline: 24px;
  }

  .subsection-heading {
    display: block;
    margin-top: 68px;
  }

  .subsection-heading > p {
    margin-top: 12px;
    text-align: left;
  }

  .cardnews-grid {
    grid-template-columns: 1fr;
  }

  .case-card__visual {
    height: 280px;
    grid-template-columns: minmax(0, 1.55fr) minmax(95px, 0.65fr);
  }

  .voice-card {
    grid-template-columns: 112px minmax(0, 1fr);
    gap: 17px;
  }

  .voice-card__photo {
    min-height: 175px;
  }

  .voice-card h3 {
    font-size: 19px;
  }

  .inquiry-card {
    min-height: 500px;
    padding: 32px 25px;
  }

  .inquiry-card h2 {
    font-size: clamp(40px, 12vw, 54px);
  }

  .button--light {
    width: 100%;
  }

  .site-footer__inner {
    min-height: 210px;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 28px;
  }

  .site-footer__links {
    justify-content: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .reader-review {
    transition: none !important;
  }
}

/* 카드뉴스 아카이브와 독자 후기는 preview/data의 배열만 수정해 확장한다. */
.cardnews-archive {
  margin-top: 64px;
}

.cardnews-archive__toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 20px;
}

.cardnews-archive__toolbar > p {
  margin: 0;
  color: var(--muted);
  font-family: ui-monospace, monospace;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.cardnews-archive__toolbar > p span:first-child {
  color: var(--highlight);
  font-size: 20px;
}

.cardnews-archive__toolbar > div {
  display: flex;
  gap: 9px;
}

.cardnews-archive__toolbar button,
.cardnews-viewer__arrow {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.055);
  color: var(--text);
  font-size: 18px;
}

.cardnews-archive__toolbar button:hover:not(:disabled),
.cardnews-archive__toolbar button:focus-visible,
.cardnews-viewer__arrow:hover,
.cardnews-viewer__arrow:focus-visible {
  border-color: var(--highlight);
  color: var(--highlight);
}

.cardnews-archive__toolbar button:disabled {
  cursor: default;
  opacity: 0.32;
}

.cardnews-rail {
  display: grid;
  margin-inline: -2px;
  padding: 4px 2px 22px;
  grid-auto-columns: clamp(286px, 27vw, 350px);
  grid-auto-flow: column;
  gap: 18px;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  scroll-padding-inline: 2px;
  scroll-snap-type: inline mandatory;
  scrollbar-color: var(--highlight) rgba(255, 255, 255, 0.08);
  touch-action: pan-x pinch-zoom;
}

.cardnews-rail:focus-visible {
  outline-offset: 5px;
}

.cardnews-series {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
  scroll-snap-align: start;
  overflow: hidden;
}

.cardnews-series--ready {
  border-color: rgb(var(--highlight-rgb) / 0.32);
  box-shadow: 0 22px 64px rgba(0, 0, 0, 0.2);
}

.cardnews-series__open,
.cardnews-series__pending {
  display: block;
  width: 100%;
  min-height: 100%;
  padding: 0;
  background: transparent;
  color: inherit;
  text-align: left;
}

.cardnews-series__open:hover .cardnews-series__visual img,
.cardnews-series__open:focus-visible .cardnews-series__visual img {
  transform: scale(1.025);
}

.cardnews-series__open:focus-visible {
  outline-offset: -5px;
}

.cardnews-series__visual {
  display: block;
  overflow: hidden;
  aspect-ratio: 1;
  border-bottom: 1px solid var(--line);
  background: #02070d;
}

.cardnews-series__visual img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 220ms ease;
}

.cardnews-series__placeholder {
  position: relative;
  display: grid;
  width: 100%;
  height: 100%;
  place-content: center;
  gap: 13px;
  background:
    linear-gradient(135deg, transparent 49.8%, rgba(255, 255, 255, 0.055) 50%, transparent 50.2%),
    linear-gradient(45deg, transparent 49.8%, rgba(255, 255, 255, 0.055) 50%, transparent 50.2%),
    radial-gradient(circle, rgb(var(--secondary-rgb) / 0.08), transparent 55%);
  text-align: center;
}

.cardnews-series__placeholder::before {
  position: absolute;
  inset: 18px;
  border: 1px dashed rgba(255, 255, 255, 0.15);
  border-radius: 14px;
  content: "";
}

.cardnews-series__placeholder span {
  color: var(--highlight);
  font-family: ui-monospace, monospace;
  font-size: 34px;
  font-weight: 900;
}

.cardnews-series__placeholder strong {
  color: var(--muted);
  font-size: 13px;
  font-weight: 760;
}

.cardnews-series__caption {
  display: grid;
  min-height: 178px;
  padding: 22px;
  align-content: start;
}

.cardnews-series__caption .cardnews-series__meta {
  color: var(--highlight);
  font-family: ui-monospace, monospace;
  font-size: 9px;
  font-weight: 850;
  letter-spacing: 0.12em;
}

.cardnews-series__caption > strong {
  margin-top: 11px;
  font-size: 20px;
  font-weight: 900;
  line-height: 1.35;
  letter-spacing: -0.035em;
  word-break: keep-all;
}

.cardnews-series__caption > span:last-child {
  margin-top: 10px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
  word-break: keep-all;
}

.cardnews-viewer[hidden] {
  display: none;
}

.cardnews-viewer {
  position: fixed;
  z-index: 500;
  display: grid;
  inset: 0;
  place-items: center;
  padding: 24px;
}

.cardnews-viewer__backdrop {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.84);
  backdrop-filter: blur(14px);
  cursor: zoom-out;
}

.cardnews-viewer__dialog {
  position: relative;
  z-index: 1;
  display: grid;
  width: min(1120px, calc(100vw - 48px));
  max-height: calc(100vh - 48px);
  border: 1px solid var(--line-strong);
  border-radius: 28px;
  background: #071019;
  box-shadow: 0 40px 120px rgba(0, 0, 0, 0.64);
  overflow: hidden;
}

.cardnews-viewer__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 22px;
  border-bottom: 1px solid var(--line);
}

.cardnews-viewer__header > div:first-child {
  min-width: 0;
}

.cardnews-viewer__header span,
.cardnews-viewer__header h3 {
  display: block;
}

.cardnews-viewer__header > div:first-child > span {
  color: var(--highlight);
  font-family: ui-monospace, monospace;
  font-size: 8px;
  font-weight: 850;
  letter-spacing: 0.13em;
}

.cardnews-viewer__header h3 {
  margin: 6px 0 0;
  overflow: hidden;
  font-size: 17px;
  font-weight: 880;
  letter-spacing: -0.025em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cardnews-viewer__tools {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 18px;
}

.cardnews-viewer__tools p {
  margin: 0;
  color: var(--highlight);
  font-family: ui-monospace, monospace;
  font-size: 13px;
}

.cardnews-viewer__tools button {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  gap: 9px;
  padding: 0 14px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.055);
  font-size: 12px;
  font-weight: 800;
}

.cardnews-viewer__tools button span {
  font-size: 20px;
  line-height: 1;
}

.cardnews-viewer__stage {
  display: grid;
  min-height: 0;
  padding: 20px;
  grid-template-columns: 52px minmax(0, 1fr) 52px;
  align-items: center;
  gap: 18px;
}

.cardnews-viewer__stage figure {
  display: grid;
  min-width: 0;
  min-height: 0;
  margin: 0;
  place-items: center;
}

.cardnews-viewer__stage img {
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: calc(100vh - 154px);
  aspect-ratio: auto;
  object-fit: contain;
}

.cardnews-viewer[data-viewer-kind="poster"] .cardnews-viewer__stage {
  grid-template-columns: minmax(0, 1fr);
}

.cardnews-viewer[data-viewer-kind="poster"] .cardnews-viewer__tools p {
  display: none;
}

.review-summary {
  display: grid;
  margin-top: 52px;
  padding: 24px;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 22px 32px;
  border: 1px solid rgba(7, 16, 25, 0.18);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.5);
}

.review-summary__metrics,
.review-summary__emotions,
.review-summary__actions {
  display: flex;
  min-width: 0;
  align-items: center;
  flex-wrap: wrap;
}

.review-summary__metrics {
  gap: 10px 16px;
}

.review-summary__stat {
  display: grid;
  min-height: 54px;
  align-content: center;
  gap: 3px;
  padding: 9px 14px;
  border-radius: 13px;
  background: rgba(7, 16, 25, 0.065);
}

.review-summary__stat strong {
  color: var(--ink);
  font-size: 15px;
  font-weight: 900;
}

.review-summary__stat span,
.review-summary__note {
  color: #58636b;
  font-size: 11px;
  line-height: 1.55;
}

.review-summary__emotions {
  gap: 7px;
}

.review-summary__emotion,
.reader-review__emotion {
  display: inline-flex;
  align-items: center;
  border: 1px solid rgb(var(--highlight-rgb) / 0.28);
  border-radius: 999px;
  color: var(--purple-deep);
  font-weight: 850;
  line-height: 1;
  white-space: nowrap;
}

.review-summary__emotion {
  min-height: 30px;
  padding: 7px 10px;
  background: rgb(var(--highlight-rgb) / 0.19);
  font-size: 11px;
}

.review-summary__emotion[data-emotion="thrill"] {
  background: rgb(var(--highlight-rgb) / 0.34);
}

.review-summary__emotion[data-emotion="moved"] {
  background: rgb(var(--highlight-rgb) / 0.58);
}

.review-summary__emotion[data-emotion="resonance"] {
  background: rgb(var(--highlight-rgb) / 0.2);
}

.review-summary__emotion[data-emotion="action"] {
  background: rgb(var(--highlight-rgb) / 0.32);
}

.review-summary__note {
  grid-column: 1 / -1;
  margin: 0;
}

.review-summary__actions {
  justify-content: flex-end;
  gap: 9px;
}

.review-summary__actions .button {
  min-height: 48px;
  padding: 0 17px;
  border-color: rgba(7, 16, 25, 0.24);
  font-size: 12px;
}

.review-summary__actions .button--primary {
  border-color: var(--highlight);
}

.review-summary__actions .button--ghost:hover,
.review-summary__actions .button--ghost:focus-visible {
  border-color: var(--purple-deep);
  background: rgb(var(--highlight-rgb) / 0.24);
}

.review-controls {
  display: flex;
  margin-top: 28px;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px 26px;
}

.review-controls__filters {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.review-controls__filters button {
  min-height: 44px;
  padding: 0 14px;
  border: 1px solid rgba(7, 16, 25, 0.2);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.4);
  color: #3d464c;
  cursor: pointer;
  font: inherit;
  font-size: 12px;
  font-weight: 850;
}

.review-controls__filters button[aria-pressed="true"],
.review-controls__filters button:hover {
  border-color: var(--paper-accent);
  background: rgb(var(--highlight-rgb) / 0.34);
  color: var(--ink);
}

.review-controls__sort {
  display: grid;
  flex: 0 0 auto;
  gap: 6px;
}

.review-controls__sort label,
.review-controls__sort small {
  color: #58636b;
  font-size: 10px;
  font-weight: 780;
}

.review-controls__sort select {
  min-width: 190px;
  min-height: 44px;
  padding: 0 36px 0 13px;
  border: 1px solid rgba(7, 16, 25, 0.24);
  border-radius: 11px;
  background: rgba(255, 255, 255, 0.7);
  color: var(--ink);
  font: inherit;
  font-size: 12px;
  font-weight: 800;
}

.review-controls button:focus-visible,
.review-controls select:focus-visible {
  outline: 3px solid rgb(var(--highlight-rgb) / 0.7);
  outline-offset: 4px;
}

.reader-voices :is(a, button, select, summary):focus-visible {
  box-shadow: 0 0 0 4px rgba(7, 16, 25, 0.92);
}

.reader-review-grid {
  display: grid;
  margin-top: 20px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.reader-review-grid[data-count="1"],
.reader-review-grid[data-count="2"] {
  grid-template-columns: repeat(2, minmax(0, 420px));
  justify-content: center;
}

.reader-review-grid[data-count="1"] {
  grid-template-columns: minmax(0, 420px);
}

.reader-review-grid[data-count="2"] .reader-review--invite {
  width: min(100%, 420px);
  grid-column: 1 / -1;
  justify-self: center;
}

.reader-review {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 14px;
  border: 1px solid rgba(7, 16, 25, 0.17);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.54);
  box-shadow: 0 15px 38px rgba(7, 16, 25, 0.035);
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.reader-review:not(.reader-review--invite):hover {
  border-color: rgb(var(--highlight-rgb) / 0.48);
  box-shadow: 0 20px 44px rgba(7, 16, 25, 0.09);
  transform: translateY(-4px);
}

.reader-review__photo {
  overflow: hidden;
  aspect-ratio: 4 / 5;
  border-radius: 14px;
  background: #dfe3d8;
}

.reader-review__photo > img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.reader-review__photo[data-photo-fit="contain"] > img {
  padding: 12px;
  background: #dfe3d8;
  object-fit: contain;
}

.reader-review__photo-placeholder {
  position: relative;
  display: grid;
  width: 100%;
  height: 100%;
  place-content: center;
  gap: 16px;
  background:
    linear-gradient(135deg, transparent 49.7%, rgba(7, 16, 25, 0.07) 50%, transparent 50.3%),
    #dfe3d8;
  text-align: center;
}

.reader-review__photo-placeholder::before {
  position: absolute;
  inset: 12px;
  border: 1px dashed rgba(7, 16, 25, 0.2);
  border-radius: 10px;
  content: "";
}

.reader-review__photo-placeholder span {
  display: grid;
  z-index: 1;
  width: 72px;
  height: 72px;
  place-items: center;
  justify-self: center;
  border-radius: 50%;
  background: var(--paper-accent-wash);
  color: var(--paper-accent-strong);
  font-size: 28px;
  font-weight: 920;
}

.reader-review__photo-placeholder strong {
  z-index: 1;
  color: #58636b;
  font-size: 12px;
  font-weight: 760;
}

.reader-review__body {
  display: flex;
  min-width: 0;
  flex: 1;
  flex-direction: column;
  padding: 20px 7px 10px;
}

.reader-review__headline {
  margin: 0;
  color: var(--ink);
  font-size: clamp(20px, 2.2vw, 27px);
  font-weight: 920;
  letter-spacing: -0.045em;
  line-height: 1.28;
  word-break: keep-all;
}

.reader-review__emotion {
  width: fit-content;
  min-height: 28px;
  margin-top: 14px;
  padding: 7px 10px;
  font-size: 10px;
}

.reader-review__emotion[data-emotion="thrill"] {
  background: rgb(var(--highlight-rgb) / 0.34);
}

.reader-review__emotion[data-emotion="moved"] {
  background: rgb(var(--highlight-rgb) / 0.58);
}

.reader-review__emotion[data-emotion="resonance"] {
  background: rgb(var(--highlight-rgb) / 0.2);
}

.reader-review__emotion[data-emotion="action"] {
  background: rgb(var(--highlight-rgb) / 0.32);
}

.reader-review__identity {
  display: grid;
  margin: 22px 0 0;
  gap: 5px;
}

.reader-review__identity strong {
  color: var(--ink);
  font-size: 18px;
  font-weight: 900;
  letter-spacing: -0.035em;
}

.reader-review__identity span,
.reader-review time {
  color: #58636b;
  font-size: 11px;
}

.reader-review blockquote {
  margin: 16px 0 0;
  color: #354047;
  font-size: 14px;
  line-height: 1.65;
  word-break: keep-all;
}

.reader-review__full {
  margin-top: 15px;
  border-top: 1px solid rgba(7, 16, 25, 0.13);
}

.reader-review__full summary {
  width: fit-content;
  min-height: 44px;
  padding: 13px 4px 8px 0;
  color: var(--purple-deep);
  cursor: pointer;
  font-size: 12px;
  font-weight: 880;
}

.reader-review__full-text {
  display: grid;
  gap: 12px;
  padding: 5px 0 9px;
}

.reader-review__full p {
  margin: 0;
  color: #354047;
  font-size: 13px;
  line-height: 1.72;
  word-break: keep-all;
}

.reader-review__meta {
  display: flex;
  margin-top: auto;
  padding-top: 15px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 12px;
}

.reader-review__source {
  display: inline-flex;
  min-height: 27px;
  align-items: center;
  padding: 5px 9px;
  border: 1px solid rgba(7, 16, 25, 0.13);
  border-radius: 999px;
  color: #4f5b62;
  font-size: 10px;
  font-weight: 820;
}

.reader-review time {
  display: inline-block;
  margin: 0;
}

.reader-review--invite {
  min-height: 480px;
  align-items: flex-start;
  justify-content: flex-end;
  padding: 30px;
  border-color: rgb(var(--highlight-rgb) / 0.38);
  background:
    radial-gradient(circle at 80% 18%, rgb(var(--highlight-rgb) / 0.38), transparent 12rem),
    rgb(var(--highlight-rgb) / 0.32);
}

.reader-review--invite h3 {
  max-width: 280px;
  margin: 0;
  color: var(--ink);
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 920;
  letter-spacing: -0.055em;
  line-height: 1.15;
  word-break: keep-all;
}

.reader-review__invite > p:first-child {
  max-width: 280px;
  margin: 0;
  color: var(--ink);
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 920;
  letter-spacing: -0.055em;
  line-height: 1.15;
  word-break: keep-all;
}

.reader-review--invite p {
  max-width: 290px;
  margin: 15px 0 0;
  color: #445057;
  font-size: 13px;
  line-height: 1.65;
}

.reader-review--invite .button {
  margin-top: 24px;
}

.reader-review__invite {
  display: flex;
  align-items: flex-start;
  flex-direction: column;
}

.review-controls__filters > span {
  color: #58636b;
  font-size: 11px;
  font-weight: 820;
}

.reader-review-grid > .review-empty {
  grid-column: 1 / -1;
  margin-top: 0;
}

.review-empty {
  display: grid;
  width: min(100%, 620px);
  min-height: 240px;
  margin: 52px auto 0;
  padding: 34px;
  place-items: center;
  align-content: center;
  gap: 20px;
  border: 1px dashed rgb(var(--highlight-rgb) / 0.42);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.46);
  color: #354047;
  text-align: center;
}

.review-empty p {
  max-width: 470px;
  margin: 0;
  font-size: 16px;
  font-weight: 750;
  line-height: 1.65;
  word-break: keep-all;
}

@media (max-width: 820px) {
  .cardnews-rail {
    grid-auto-columns: min(43vw, 330px);
  }

  .reader-review-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .review-summary {
    grid-template-columns: minmax(0, 1fr);
  }

  .review-summary__actions {
    justify-content: flex-start;
  }
}

@media (min-width: 1240px) {
  .forum-poster__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 420px);
  }
}

@media (max-width: 899px) {
  .forum-poster__grid {
    grid-template-areas:
      "heading"
      "facts"
      "details"
      "actions"
      "figure";
    grid-template-columns: minmax(0, 1fr);
    gap: 34px;
  }

  .forum-poster__figure {
    width: min(100%, 560px);
  }

  .forum-poster__details {
    grid-template-columns: minmax(0, 1fr);
  }

  .forum-detail--model {
    grid-column: auto;
  }
}

@media (max-width: 600px) {
  .cardnews-archive {
    margin-top: 44px;
  }

  .cardnews-archive__toolbar button {
    width: 44px;
    height: 44px;
  }

  .cardnews-rail {
    grid-auto-columns: calc(100vw - 66px);
    gap: 13px;
  }

  .cardnews-series__caption {
    min-height: 160px;
    padding: 20px;
  }

  .cardnews-viewer {
    padding: 0;
  }

  .cardnews-viewer__dialog {
    width: 100vw;
    height: 100dvh;
    max-height: none;
    border: 0;
    border-radius: 0;
  }

  .cardnews-viewer__header {
    align-items: flex-start;
    padding: 15px 16px;
  }

  .cardnews-viewer__header h3 {
    max-width: 58vw;
    font-size: 14px;
  }

  .cardnews-viewer__tools {
    gap: 10px;
  }

  .cardnews-viewer__tools button {
    min-height: 38px;
    padding-inline: 11px;
  }

  .cardnews-viewer__stage {
    grid-template-columns: 42px minmax(0, 1fr) 42px;
    gap: 7px;
    padding: 12px 8px 24px;
  }

  .cardnews-viewer__arrow {
    width: 42px;
    height: 42px;
  }

  .cardnews-viewer__stage img {
    max-height: calc(100dvh - 112px);
  }

  .reader-review-grid {
    grid-template-columns: 1fr;
  }

  .reader-review-grid[data-count="1"],
  .reader-review-grid[data-count="2"] {
    grid-template-columns: minmax(0, 420px);
  }

  .reader-review-grid[data-count="2"] .reader-review--invite {
    grid-column: auto;
  }

  .review-summary {
    margin-top: 40px;
    padding: 20px;
  }

  .review-summary__actions,
  .review-summary__actions .button {
    width: 100%;
  }

  .review-summary__actions .button {
    justify-content: center;
  }

  .review-controls {
    align-items: stretch;
    flex-direction: column;
  }

  .review-controls__filters {
    overflow-x: auto;
    padding: 8px;
    flex-wrap: nowrap;
    scrollbar-width: thin;
  }

  .review-controls__filters button {
    flex: 0 0 auto;
  }

  .review-controls__sort select {
    width: 100%;
  }

  .reader-review--invite {
    min-height: 370px;
  }

  .forum-facts > div {
    grid-template-columns: 88px minmax(0, 1fr);
    gap: 12px;
  }

  .forum-task-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .forum-poster__actions {
    align-items: flex-start;
    flex-direction: column;
  }
}

/* 운영 궤도: 1140×950. 좌우 카드 돌출 공간을 포함해 1380px를 축소한다. */
@keyframes ride {
  to { offset-distance: 100%; }
}

@keyframes tread {
  to { stroke-dashoffset: -152; }
}

@media screen and (min-width: 900px) {
  .learning-loop--orbit .loop-viewport {
    position: relative;
    width: 100%;
    height: calc(950px * var(--loop-scale));
  }

  .learning-loop--orbit .loop-stage {
    position: absolute;
    top: 0;
    left: calc(120px * var(--loop-scale));
    width: 1140px;
    height: 950px;
    transform: scale(var(--loop-scale));
    transform-origin: top left;
  }

  .learning-loop--orbit .loop-belt {
    display: block;
    position: absolute;
    inset: 0;
    width: 1140px;
    height: 950px;
    overflow: visible;
    fill: none;
  }

  .loop-belt__edge { stop-color: var(--loop-edge); }
  .loop-belt__middle { stop-color: var(--loop-surface); }
  .loop-belt__glow { stroke: var(--loop-glow); }
  .loop-belt__outer { stroke: var(--loop-line); }
  .loop-belt__inner { stroke: var(--loop-inner); }
  .loop-belt__tread {
    stroke: var(--loop-tread);
    animation: tread 3.4s linear infinite;
  }

  .learning-loop--orbit .loop-core {
    display: flex;
    position: absolute;
    left: 320px;
    top: 290px;
    width: 500px;
    height: 370px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 28px;
    border: 1px solid var(--loop-inner);
    border-radius: 50%;
    background: radial-gradient(ellipse, var(--loop-glow), var(--loop-surface) 72%);
    text-align: center;
  }

  .loop-core > span {
    color: var(--loop-cyan);
    font: 800 18px ui-monospace, monospace;
    letter-spacing: 0.16em;
  }

  .loop-core > strong {
    font-size: 44px;
    line-height: 1.4;
    letter-spacing: -0.04em;
  }

  .learning-loop--orbit .loop-diagram {
    position: absolute;
    inset: 0;
    display: block;
    width: 1140px;
    height: 950px;
    max-width: none;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
  }

  .learning-loop--orbit .loop-diagram::before,
  .learning-loop--orbit .loop-diagram::after {
    display: none;
  }

  .learning-loop--orbit .loop-diagram li {
    position: absolute;
    top: 0;
    left: 0;
    width: 280px;
    min-height: 128px;
    padding: 20px 24px;
    border: 1px solid var(--loop-inner);
    border-radius: 26px;
    background: var(--loop-surface);
    box-shadow: 0 16px 40px var(--loop-glow);
    offset-path: path('M450,75 H690 A400,400 0 0 1 690,875 H450 A400,400 0 0 1 450,75 Z');
    offset-anchor: center;
    offset-rotate: 0deg;
    animation: ride 28s linear infinite;
  }

  .learning-loop--orbit .loop-diagram li:first-child {
    background: var(--loop-card);
    border-color: var(--loop-cyan);
  }

  .learning-loop--orbit .loop-diagram li:nth-child(2) { animation-delay: -7s; }
  .learning-loop--orbit .loop-diagram li:nth-child(3) { animation-delay: -14s; }
  .learning-loop--orbit .loop-diagram li:nth-child(4) { animation-delay: -21s; }
  .learning-loop--orbit .loop-diagram li > span { font-size: 14px; }
  .learning-loop--orbit .loop-diagram strong { margin-top: 8px; font-size: 25px; }
  .learning-loop--orbit .loop-diagram small { color: #fff; font-size: 18px; }
}

@media screen and (min-width: 900px) and (prefers-reduced-motion: reduce) {
  .learning-loop--orbit .loop-diagram li,
  .learning-loop--orbit .loop-belt__tread { animation: none !important; }
  .learning-loop--orbit .loop-diagram li:nth-child(1) { offset-distance: 0%; }
  .learning-loop--orbit .loop-diagram li:nth-child(2) { offset-distance: 25%; }
  .learning-loop--orbit .loop-diagram li:nth-child(3) { offset-distance: 50%; }
  .learning-loop--orbit .loop-diagram li:nth-child(4) { offset-distance: 75%; }
}

/* 업로드 원문 프로필: 기존 연사 섹션의 색상과 반응형 레이아웃을 사용합니다. */
.speaker__grid { align-items: start; }
.speaker-card { min-height: 0; }
.speaker-card__quote {
  margin: 24px 0 0;
  padding-left: 18px;
  border-left: 2px solid var(--highlight);
  color: var(--text);
  font-size: 18px;
  line-height: 1.7;
  word-break: keep-all;
}
.topic-panel .section-heading .speaker-intro__title {
  font-size: clamp(24px, 2.6vw, 36px);
  line-height: 1.4;
}
.speaker-intro { margin-top: 24px; }
.speaker-intro p,
.speaker-detail__body,
.speaker-session-summary {
  font-size: 15px;
  line-height: 1.85;
  word-break: keep-all;
  overflow-wrap: anywhere;
}
.speaker-intro p + p { margin-top: 16px; }
.speaker-evidence {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin: 30px 0;
}
.speaker-evidence > div {
  padding-top: 18px;
  border-top: 2px solid var(--paper-accent-strong);
}
.speaker-evidence dt { font-size: 25px; font-weight: 850; letter-spacing: -0.04em; }
.speaker-evidence dd { margin: 8px 0 0; font-size: 12px; line-height: 1.6; overflow-wrap: anywhere; }
.speaker-topics-title { margin: 30px 0 8px; font-size: 22px; }
.speaker-topics-meta { margin: 0; font-size: 13px; color: #58636b; }
.speaker .topic-grid { margin-top: 18px; }
.speaker-session-summary { margin-top: 24px; }
.speaker-session-summary h4 { margin-bottom: 8px; }
.speaker-profile { margin-top: 36px; }
.speaker-profile__heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}
.speaker-profile__heading h3 { margin: 0; font-size: 24px; letter-spacing: -0.04em; }
.speaker-profile__download { color: var(--paper-accent-strong); font-size: 13px; font-weight: 750; text-decoration: underline; text-underline-offset: 4px; }
.speaker-detail { border-top: 1px solid rgba(7, 16, 25, 0.2); }
.speaker-detail:last-of-type { border-bottom: 1px solid rgba(7, 16, 25, 0.2); }
.speaker-detail summary { padding: 24px 0; cursor: pointer; font-size: 18px; font-weight: 800; }
.speaker-detail summary::marker { color: var(--paper-accent-strong); }
.speaker-detail summary:focus-visible,
.speaker-profile__download:focus-visible { outline: 2px solid var(--paper-accent-strong); outline-offset: 5px; }
.speaker-detail__body { max-width: 900px; padding: 0 0 28px; }
.speaker-detail__body h4 { margin: 24px 0 10px; font-size: 18px; }
.speaker-detail__body h4:first-child { margin-top: 0; }
.speaker-detail__body ul,
.speaker-detail__body ol { padding-left: 22px; }
.speaker-detail__body li + li { margin-top: 12px; }
.speaker-detail__body blockquote { margin: 24px 0; border-left: 2px solid var(--paper-accent-strong); padding-left: 20px; font-weight: 750; }
.speaker-timeline { margin: 0; }
.speaker-timeline > div { display: grid; grid-template-columns: 125px minmax(0, 1fr); gap: 16px; padding: 14px 0; border-bottom: 1px solid rgba(7, 16, 25, 0.1); }
.speaker-timeline dt { color: var(--paper-accent-strong); font-weight: 750; }
.speaker-timeline dd { margin: 0; }
.speaker-profile__source { margin: 18px 0 0; font-size: 12px; color: #58636b; }
@media (max-width: 600px) {
  .speaker-timeline > div { grid-template-columns: 1fr; gap: 4px; }
  .speaker-evidence { gap: 18px; }
  .speaker-evidence dt { font-size: 22px; }
}

.speaker-intro__subtitle { display: block; margin-top: 14px; color: #58636b; font-size: 14px; font-weight: 600; letter-spacing: 0; line-height: 1.7; }

/* 운영 원문 01·02·03: 번호 배지와 DOM 순서를 보존하고 폭만 반응형으로 배치합니다. */
.organization-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 32px;
}
.organization-steps > div {
  min-width: 0;
  padding: 0 !important;
}
.organization-steps > div > div { min-width: 0; }
.organization-steps > div > div[style*="width:56px"] { flex: 0 0 56px; }
.organization-steps > div > div > div { word-break: keep-all; overflow-wrap: anywhere; }
@media (max-width: 1099px) {
  .organization-steps { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .organization-steps > div:nth-child(2) { justify-content: flex-end; }
}

@media (min-width: 900px) {
  .learning-loop--orbit .loop-diagram li:first-child > span { color: var(--text); }
}