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

:root {
  --main: #1f4d3d;
  --ink: #111111;
  --sub: #505050;
  --muted: #767676;
  --line: #e3e5e4;
  --line-soft: #f0f1f0;
  --bg-soft: #f6f7f6;
  --bg-accent: #eff4f1;
  --chip-accent: #e6eee9;
  --chip-gray: #f0f1f0;
  --pad-x: 20px;
  --sec-pad: 80px;
  --sec-gap: 64px;
  --label-col: 280px;
  --card-pad: 28px 32px;
  --wrap-max: 1200px;
  --toc-w: 160px;
  --toc-gap: 20px;
  /* 목차가 차지하는 오른쪽 여백. 목차를 숨기는 폭에서는 0 이 된다. */
  --toc-space: 0px;
  --photo: 200px;
}

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

body {
  margin: 0;
  background: #ffffff;
  color: var(--ink);
  font-family:
    Pretendard,
    "Plus Jakarta Sans",
    -apple-system,
    BlinkMacSystemFont,
    "Apple SD Gothic Neo",
    sans-serif;
  letter-spacing: -0.025em;
  word-break: keep-all;
  overflow-wrap: break-word;
  -webkit-text-size-adjust: 100%;
}

a {
  color: var(--main);
  text-decoration: none;
  overflow-wrap: anywhere;
}
a:hover {
  color: var(--sub);
}

.wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

/* 오른쪽 목차 자리를 비워두기 위해 폭을 늘린 뒤 그만큼 오른쪽 여백을 준다.
   바깥의 .hero / .foot 배경은 그대로 화면 전체를 채운다. */
.wrap,
.hero__inner,
.foot__inner {
  max-width: calc(var(--wrap-max) + var(--toc-space));
  padding-right: calc(var(--pad-x) + var(--toc-space));
}

/* ---------- hero ---------- */
.hero {
  border-top: 6px solid var(--main);
  background: var(--bg-soft);
}
.hero__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 72px var(--pad-x) 64px;
  display: grid;
  grid-template-columns: var(--photo) 1.15fr 0.9fr;
  gap: 40px;
  align-items: end;
}
.hero__photo {
  align-self: stretch;
  width: var(--photo);
  min-height: 280px;
  border-radius: 12px;
  overflow: hidden;
}
.hero__photo img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 55% 30%;
}
.hero__lead {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.hero__eyebrow {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.4;
}
.hero__name {
  margin: 0;
  font-size: clamp(34px, 7vw, 56px);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.03em;
}
.hero__role {
  font-size: clamp(16px, 2.4vw, 18px);
  font-weight: 500;
  color: var(--sub);
  line-height: 1.5;
}
.hero__desc {
  margin: 0;
  max-width: 640px;
  font-size: clamp(15px, 1.8vw, 16px);
  line-height: 1.75;
  color: var(--sub);
  text-wrap: pretty;
}

.contact {
  display: flex;
  flex-direction: column;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px 24px;
}
.contact__row {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line-soft);
  align-items: baseline;
}
.contact__row:last-child {
  border-bottom: 0;
}
.contact__key {
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
}
.contact__val {
  font-size: 15px;
  font-weight: 500;
  line-height: 1.5;
  overflow-wrap: anywhere;
}
.contact__val a {
  color: inherit;
}
.contact__val a:hover {
  color: var(--main);
}

/* ---------- section ---------- */
.sec {
  scroll-margin-top: 24px;
  padding: var(--sec-pad) 0;
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: var(--label-col) 1fr;
  gap: var(--sec-gap);
  align-items: start;
}
.sec--last {
  border-bottom: 0;
}
.sec__head {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.sec__title {
  margin: 0;
  font-size: clamp(21px, 3vw, 24px);
  font-weight: 600;
  letter-spacing: -0.03em;
}
.sec__sub {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
}
.sec__body {
  display: flex;
  flex-direction: column;
  max-width: 760px;
}

.stack-16 {
  gap: 16px;
}
.stack-20 {
  gap: 20px;
}
.stack-24 {
  gap: 24px;
}
.stack-32 {
  gap: 32px;
}
.stack-40 {
  gap: 40px;
}
.stack-56 {
  gap: 56px;
}

/* ---------- intro ---------- */
.intro__text {
  margin: 0;
  font-size: clamp(15px, 2vw, 17px);
  line-height: 1.8;
  color: var(--ink);
  text-wrap: pretty;
}
.callout {
  background: var(--bg-accent);
  border-radius: 10px;
  padding: 28px 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.callout__title {
  font-size: 16px;
  font-weight: 600;
  color: var(--main);
}
.callout__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--sub);
  text-wrap: pretty;
}
.bullets {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 4px;
}
.bullet {
  display: flex;
  gap: 10px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
}
.bullet::before {
  content: "·";
  color: var(--main);
  flex: none;
}

/* ---------- skills ---------- */
.strength {
  border-left: 3px solid var(--main);
  background: var(--bg-soft);
  padding: 16px 20px;
  font-size: 15px;
  line-height: 1.6;
}
.label {
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
}
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.chip {
  padding: 7px 14px;
  border-radius: 999px;
  background: var(--chip-gray);
  color: var(--sub);
  font-size: 14px;
  font-weight: 500;
}
.chip--accent {
  background: var(--chip-accent);
  color: var(--main);
}

/* ---------- cards ---------- */
.sec__body[id] {
  scroll-margin-top: 32px;
}
.group__label {
  font-size: 13px;
  font-weight: 600;
  color: var(--main);
}
.card {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: var(--card-pad);
  display: flex;
  flex-direction: column;
}
.card__top {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 12px;
}
.card__org {
  font-size: clamp(17px, 2.4vw, 19px);
  font-weight: 600;
}
.card__period {
  font-size: 14px;
  font-weight: 500;
  color: var(--main);
}
.card__course {
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
}
.card__block {
  display: flex;
  flex-direction: column;
  gap: 10px;
  border-top: 1px solid var(--line-soft);
  padding-top: 20px;
}
.card__blockTitle {
  font-size: 16px;
  font-weight: 600;
}
.card__note {
  font-size: 15px;
  line-height: 1.7;
  color: var(--sub);
  border-top: 1px solid var(--line-soft);
  padding-top: 14px;
}
.list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.list--divided {
  border-top: 1px solid var(--line-soft);
  padding-top: 14px;
}
.li {
  display: flex;
  gap: 10px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--sub);
}
.li::before {
  content: "·";
  color: #bfc4c1;
  flex: none;
}

.vod {
  background: var(--bg-soft);
  border-radius: 10px;
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.vod__title {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 600;
}
.vod__badge {
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--chip-accent);
  color: var(--main);
  font-size: 13px;
  font-weight: 500;
}
.vod__meta {
  font-size: 14px;
  color: var(--muted);
}
.vod a {
  font-size: 14px;
}

/* ---------- 2-column rows ---------- */
.rows {
  display: flex;
  flex-direction: column;
}
.row {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 24px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}
.row:last-child {
  border-bottom: 1px solid var(--line);
}
/* 대표로 내세우는 이력 — .rows 의 선 리듬에서 떼어내 카드로 세운다.
   메인 컬러(딥 그린)의 보색인 앰버를 카드 안에서만 쓴다. */
.row--feature {
  --feature: #a4530b;
  --feature-bg: #fdf6ec;
  --feature-line: #ecd8b8;
  border-top: 0;
  border: 1px solid var(--feature-line);
  border-radius: 12px;
  background: var(--feature-bg);
  padding: 24px;
  margin-bottom: 6px;
}
.row--feature .row__org {
  font-size: 17px;
}
.row--feature .row__date,
.row--feature .result__more {
  color: var(--feature);
}
.row--feature .result__thumbs img {
  border-color: var(--feature-line);
  background: #fff;
}
.row--feature .result:hover .result__thumbs img {
  border-color: #ddc099;
}
.row--feature .result:focus-visible {
  outline-color: var(--feature);
}
.row__badge {
  align-self: flex-start;
  margin-bottom: 2px;
  padding: 4px 11px;
  border-radius: 999px;
  background: var(--feature, var(--main));
  color: #ffffff;
  font-size: 11.5px;
  font-weight: 600;
}

.row--career {
  grid-template-columns: 180px 1fr;
  padding: 20px 0;
  border-top: 1px solid var(--line-soft);
}
.row--career:last-child {
  border-bottom: 1px solid var(--line-soft);
}
.row__meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.row__org {
  font-size: 16px;
  font-weight: 600;
}
.row__sub {
  font-size: 13px;
  color: var(--muted);
}
.row__date {
  font-size: 13px;
  color: var(--main);
  font-weight: 500;
}
.row__body {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 15px;
  line-height: 1.7;
}
.row__body .dim {
  color: var(--sub);
}
.row__role {
  font-size: 14px;
  color: var(--main);
  font-weight: 500;
}
.row__desc {
  font-size: 15px;
  line-height: 1.7;
  color: var(--sub);
}

/* ---------- education ---------- */
.edu {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 24px;
  padding: 24px 0;
  border-top: 1px solid var(--line);
  align-items: baseline;
}
.edu:last-child {
  border-bottom: 1px solid var(--line);
}
.edu__school {
  font-size: clamp(16px, 2.4vw, 18px);
  font-weight: 600;
}
.edu__major {
  font-size: 15px;
  color: var(--sub);
  margin-top: 6px;
}
.edu__date {
  font-size: 14px;
  color: var(--muted);
}

/* ---------- lecture result trigger ---------- */
.result {
  appearance: none;
  margin: 10px 0 0;
  padding: 0;
  border: 0;
  background: none;
  font: inherit;
  color: inherit;
  text-align: left;
  cursor: pointer;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
}
.result__thumbs {
  display: flex;
  gap: 8px;
}
.result__thumbs img {
  display: block;
  width: 92px;
  height: 58px;
  object-fit: cover;
  object-position: top left;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--bg-soft);
  transition:
    transform 0.2s ease,
    border-color 0.2s ease;
}
.result:hover .result__thumbs img {
  border-color: #bcd0c6;
}
.result:hover .result__thumbs img:nth-child(1) {
  transform: translateY(-2px);
}
.result:hover .result__thumbs img:nth-child(2) {
  transform: translateY(-2px);
  transition-delay: 0.03s;
}
.result:hover .result__thumbs img:nth-child(3) {
  transform: translateY(-2px);
  transition-delay: 0.06s;
}
.result__more {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--main);
}
.result__more::after {
  content: " →";
  display: inline-block;
  transition: transform 0.2s ease;
}
.result:hover .result__more::after {
  transform: translateX(3px);
}
.result:focus-visible {
  outline: 2px solid var(--main);
  outline-offset: 4px;
  border-radius: 8px;
}

/* ---------- result modal ---------- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 20px;
}
.modal[hidden] {
  display: none;
}
.modal__scrim {
  position: absolute;
  inset: 0;
  background: rgba(12, 26, 20, 0.55);
  backdrop-filter: blur(3px);
  animation: modalFade 0.2s ease;
}
.modal__panel:focus {
  outline: none;
}
.modal__panel {
  position: relative;
  display: flex;
  flex-direction: column;
  width: min(1080px, 100%);
  max-height: 100%;
  background: #ffffff;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 30px 70px rgba(12, 26, 20, 0.3);
  animation: modalRise 0.24s cubic-bezier(0.2, 0.7, 0.3, 1);
}
.modal__hd {
  flex: none;
  display: flex;
  align-items: flex-start;
  gap: 24px;
  padding: 26px 28px;
  border-bottom: 1px solid var(--line);
}
.modal__eyebrow {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--main);
}
.modal__title {
  margin: 7px 0 0;
  font-size: 21px;
  font-weight: 600;
  letter-spacing: -0.03em;
}
.modal__meta {
  margin-top: 6px;
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.6;
}
.modal__x {
  appearance: none;
  margin-left: auto;
  flex: none;
  width: 36px;
  height: 36px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #fff;
  color: var(--sub);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition:
    background-color 0.15s ease,
    color 0.15s ease;
}
.modal__x:hover {
  background: var(--bg-soft);
  color: var(--ink);
}
.modal__x svg {
  width: 17px;
  height: 17px;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  fill: none;
}
.modal__bd {
  flex: 1;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 34px;
  background: var(--bg-soft);
}
.shot {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.shot img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
}
.shot__cap {
  display: flex;
  gap: 14px;
}
.shot__no {
  flex: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--chip-accent);
  color: var(--main);
  font-size: 12px;
  font-weight: 700;
  display: grid;
  place-items: center;
}
.shot__t {
  font-size: 15px;
  font-weight: 600;
}
.shot__d {
  margin: 5px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--sub);
}
@keyframes modalFade {
  from {
    opacity: 0;
  }
}
@keyframes modalRise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
}
@media (max-width: 600px) {
  .modal {
    padding: 0;
  }
  .modal__panel {
    max-height: 100%;
    height: 100%;
    border-radius: 0;
  }
  .modal__hd {
    padding: 20px;
  }
  .modal__bd {
    padding: 20px;
    gap: 28px;
  }
  .result__thumbs img {
    width: 78px;
    height: 49px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .modal__scrim,
  .modal__panel {
    animation: none;
  }
  .result__thumbs img,
  .result__more::after {
    transition: none;
  }
}

/* ---------- floating TOC ---------- */
/* 배경 없이 항상 펼쳐둔다. 본문 오른쪽 끝에 붙되, 화면이 넓어져도
   본문에서 멀어지지 않도록 min() 으로 두 기준 중 작은 쪽을 쓴다. */
.toc {
  display: none;
  position: fixed;
  bottom: 28px;
  left: calc(
    (100% + min(100%, calc(var(--wrap-max) + var(--toc-space)))) / 2 -
      var(--pad-x) - var(--toc-space) + var(--toc-gap)
  );
  z-index: 40;
  width: var(--toc-w);
  padding: 6px 0;
  flex-direction: column;
  gap: 2px;
}
.toc__item {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  padding: 7px 0;
  color: var(--muted);
}
.toc__item:hover {
  color: var(--ink);
}
.toc__item--sub {
  padding-top: 5px;
  padding-bottom: 5px;
}
.toc__label {
  font-size: 13px;
  font-weight: 500;
  line-height: 1.4;
  white-space: nowrap;
  color: inherit;
}
.toc__item--sub .toc__label {
  font-size: 12px;
  font-weight: 400;
}
.toc__bar {
  flex: none;
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: #c7ccc9;
  transition:
    width 0.2s ease,
    background-color 0.2s ease;
}
.toc__item--sub .toc__bar {
  width: 9px;
}
.toc__item:hover .toc__bar {
  background: var(--sub);
}
.toc__item.is-active {
  color: var(--main);
}
.toc__item.is-active .toc__label {
  font-weight: 600;
}
.toc__item.is-active .toc__bar {
  width: 26px;
  background: var(--main);
}
.toc__item--sub.is-active .toc__bar {
  width: 18px;
}

/* 모바일이 아닌 폭에서만 목차를 띄우고, 그만큼 본문 자리를 비운다. */
@media (min-width: 760px) {
  :root {
    --toc-space: 196px;
  }
  .toc {
    display: flex;
  }
}

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

/* ---------- footer ---------- */
.foot {
  background: var(--bg-soft);
  border-top: 1px solid var(--line);
}
.foot__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 56px var(--pad-x);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.foot__title {
  font-size: 20px;
  font-weight: 600;
}
.foot__contact {
  font-size: 15px;
  color: var(--sub);
  margin-top: 8px;
  line-height: 1.7;
}
.foot__contact a {
  color: inherit;
}
.foot__contact a:hover {
  color: var(--main);
}
.foot__sign {
  font-size: 14px;
  color: var(--muted);
}

/* ---------- tablet ---------- */
@media (max-width: 1360px) {
  :root {
    --sec-pad: 64px;
    --sec-gap: 40px;
    --label-col: 200px;
    --photo: 168px;
  }
  .hero__inner {
    gap: 32px;
  }
}

/* ---------- stack point ---------- */
@media (max-width: 1180px) {
  :root {
    --sec-pad: 52px;
    --sec-gap: 24px;
  }
  :root {
    --photo: 132px;
  }
  .hero__photo {
    align-self: start;
    min-height: 0;
    aspect-ratio: 4 / 5;
  }
  .hero__inner {
    grid-template-columns: 1fr;
    gap: 32px;
    align-items: start;
    padding: 56px var(--pad-x) 48px;
  }
  .contact {
    padding: 4px 20px;
  }
  .sec {
    grid-template-columns: 1fr;
  }
  .sec__body {
    max-width: none;
  }
  .row,
  .row--career {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 20px 0;
  }
  .row--feature {
    padding: 20px;
  }
  .stack-56 {
    gap: 40px;
  }
  .stack-40 {
    gap: 32px;
  }
}

/* ---------- mobile ---------- */
@media (max-width: 790px) {
  :root {
    --pad-x: 18px;
    --sec-pad: 44px;
    --card-pad: 20px 18px;
    --photo: 112px;
  }
  .hero {
    border-top-width: 4px;
  }
  .hero__inner {
    padding: 44px var(--pad-x) 40px;
    gap: 28px;
  }
  .hero__lead {
    gap: 14px;
  }
  .contact__row {
    grid-template-columns: 64px 1fr;
    gap: 12px;
    padding: 14px 0;
  }
  .callout {
    padding: 22px 20px;
  }
  .strength {
    padding: 14px 16px;
  }
  .chip {
    padding: 6px 12px;
    font-size: 13px;
  }
  .card__top {
    gap: 4px 10px;
  }
  .card__block {
    padding-top: 16px;
  }
  .vod {
    padding: 14px 16px;
  }
  .edu {
    grid-template-columns: 1fr;
    padding: 20px 0;
  }
  .foot__inner {
    padding: 40px var(--pad-x);
    gap: 16px;
  }
  .foot__title {
    font-size: 18px;
  }
}

@media print {
  :root {
    --toc-space: 0px;
  }
  .toc,
  .result,
  .modal {
    display: none;
  }
  .hero,
  .foot {
    background: #fff;
  }
  .sec {
    break-inside: avoid;
  }
  .card {
    break-inside: avoid;
  }
}