/* ==========================================================================
   Home (GB-20 4조각, 페이지 561)
   정본: Figma I01 158:4(데스크톱 1440), P01 198:661(모바일 390).
   간격은 I01 프레임 패딩·좌표에서 잰 값이다.
   ========================================================================== */

.gb-home {
  --gb-home-pad: 80px;
  background: var(--gb-paper);
  color: var(--gb-ink);
}
.gb-home__inner {
  max-inline-size: calc(var(--gb-page-max) + 2 * var(--gb-home-pad));
  margin-inline: auto;
  padding-inline: var(--gb-home-pad);
}
.gb-home a { color: var(--gb-navy); text-decoration: none; }
.gb-home a:focus-visible { outline: 2px solid var(--gb-navy); outline-offset: 2px; }
.gb-home :where(ul, ol, dl, dd) { margin: 0; padding: 0; list-style: none; } /* :where — 구획별 여백이 이긴다 */

.gb-home__label,
.gb-home-feature__eyebrow,
.gb-home-feature__meta,
.gb-home-latest__eyebrow,
.gb-home-latest__date,
.gb-home-topics__count,
.gb-home-stats__label,
.gb-home-series__strip,
.gb-home-series__label,
.gb-home-series__meta {
  font-family: var(--gb-font-family-ui);
  font-size: 11px;
  font-weight: 500;
  line-height: normal;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.gb-home__label { margin: 0; color: var(--gb-navy); }

.gb-home-feature__read,
.gb-home-latest__all,
.gb-home-path__open,
.gb-home-series__path {
  display: inline-flex;
  gap: 6px;
  align-items: center;
  min-block-size: 24px;
  font-family: var(--gb-font-family-ui);
  font-size: 14px;
  font-weight: 500;
}
.gb-home-feature__read:hover,
.gb-home-latest__all:hover,
.gb-home-path__open:hover,
.gb-home-series__path:hover { text-decoration: underline; text-underline-offset: 4px; }

/* ── 대표 사진 띠 (J01 161:294) ─────────────────────── */
.gb-home-hero { position: relative; overflow: hidden; background: var(--gb-navy); color: var(--gb-paper); }
.gb-home-hero__img { position: absolute; inset-block: 0; inset-inline-end: 0; inline-size: calc(100% - 338px); block-size: 100%; object-fit: cover; }
.gb-home-hero::before { /* 사진 왼쪽 560 을 남색으로 녹인다 */
  content: ""; position: absolute; inset-block: 0; inset-inline-start: 338px; inline-size: 560px; z-index: 1;
  background: linear-gradient(90deg, var(--gb-navy), color-mix(in srgb, var(--gb-navy) 0%, transparent));
}
.gb-home-hero__body { position: relative; z-index: 2; display: flex; flex-direction: column; gap: 22px; align-items: flex-start; box-sizing: border-box; min-block-size: 620px; padding-block: 96px; }
.gb-home-hero__label { margin: 0; font-family: var(--gb-font-family-ui); font-size: 11px; font-weight: 500; line-height: normal; letter-spacing: 0.12em; text-transform: uppercase; color: var(--gb-gold); }
.gb-home-hero__title { max-inline-size: none; margin: 0; font-family: var(--gb-font-display-family); font-size: 76px; font-weight: 400; line-height: 1.04; letter-spacing: 0; color: var(--gb-paper); }
.gb-home-hero__line { display: block; } /* 문장 하나 = 한 줄 (고객 2026-10-02) */
.gb-home-hero__sub { max-inline-size: none; margin: 0; font-family: var(--gb-font-serif); font-size: 21px; line-height: 1.5; color: var(--gb-paper); }
@media (min-width: 1024px) {
  .gb-home-hero__line,
  .gb-home-hero__sub { white-space: nowrap; } /* 데스크톱만 줄바꿈 금지 — 휴대폰은 폭이 모자라 감긴다 */
}
.gb-home-hero__cta { display: inline-flex; padding: 15px 26px; border: 1px solid var(--gb-paper); font-family: var(--gb-font-family-ui); font-size: 14px; font-weight: 500; line-height: normal; color: var(--gb-paper) !important; }
.gb-home-hero__cta:hover { background: color-mix(in srgb, var(--gb-paper) 12%, transparent); }
.gb-home-hero__cta:focus-visible { outline: 2px solid var(--gb-gold); outline-offset: 2px; }

/* ── 첫 화면 3단: 최신 320 | 대표 640 | 경로·주제 320 ── */

.gb-home-front {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2fr) minmax(0, 1fr); /* 1440 에서 320·640·320, 좁아져도 1:2:1 */
  grid-template-areas: "latest feature side";
  justify-content: center;
  padding-block: 40px 72px;
}
.gb-home-front__latest { grid-area: latest; padding-inline-end: 40px; }
.gb-home-front__feature { grid-area: feature; padding-inline: 39px; border-inline: 1px solid var(--gb-gray-200); } /* 640 = 선 1 + 39 + 그림 560 + 39 + 선 1 */
.gb-home-front__side { grid-area: side; display: flex; flex-direction: column; gap: 24px; padding-inline-start: 40px; }

.gb-home-feature { display: flex; flex-direction: column; gap: 14px; align-items: flex-start; }
.gb-home-feature__art { display: block; inline-size: 100%; aspect-ratio: 560 / 340; }
.gb-home-feature__art .gb-art,
.gb-home-why__art .gb-art,
.gb-home-series__art .gb-art { display: block; inline-size: 100%; block-size: 100%; }
.gb-home-feature__eyebrow { margin: 0; color: var(--gb-navy); }
.gb-home-feature__title {
  margin: 0;
  font-family: var(--gb-font-display-family);
  font-size: 46px;
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: 0;
}
.gb-home-feature__title a { color: var(--gb-ink); }
.gb-home-feature__title a:hover { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 6px; }
.gb-home-feature__dek { margin: 0; font-family: var(--gb-font-serif); font-size: 20px; line-height: 1.45; color: var(--gb-gray-600); }
.gb-home-feature__foot { display: flex; flex-wrap: wrap; gap: 8px 24px; align-items: center; margin: 0; }
.gb-home-feature__meta { color: var(--gb-gray-600); }

.gb-home-latest__list { display: flex; flex-direction: column; gap: 16px; margin-block-start: 16px; }
.gb-home-latest__item a { display: flex; flex-direction: column; gap: 6px; padding-block-end: 16px; border-block-end: 1px solid var(--gb-gray-200); }
.gb-home-latest__eyebrow,
.gb-home-latest__date { color: var(--gb-gray-600); }
.gb-home-latest__title { font-family: var(--gb-font-serif); font-size: 19px; font-weight: 600; line-height: 1.25; color: var(--gb-ink); }
.gb-home-latest__item a:hover .gb-home-latest__title { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 4px; }
.gb-home-latest__all { margin-block-start: 16px; }

.gb-home-path { padding: 24px; border: 1px solid var(--gb-gray-200); background: var(--gb-white); }
.gb-home-path__list { margin-block: 6px; }
.gb-home-path__stage { display: flex; gap: 14px; align-items: center; padding-block: 12px; border-block-end: 1px solid var(--gb-gray-200); }
.gb-home-path__num { flex: none; font-family: var(--gb-font-display-family); font-size: 30px; line-height: normal; color: var(--gb-navy); }
.gb-home-path__text { display: flex; flex-direction: column; gap: 2px; }
.gb-home-path__name { font-family: var(--gb-font-serif); font-size: 17px; font-weight: 600; line-height: normal; color: var(--gb-ink); }
.gb-home-path__series { font-family: var(--gb-font-family-ui); font-size: 12px; line-height: normal; color: var(--gb-gray-600); }
.gb-home-path__stage:hover .gb-home-path__name { text-decoration: underline; text-underline-offset: 4px; }
.gb-home-path__open { margin-block-start: 10px; }

.gb-home-topics__list { display: flex; flex-direction: column; gap: 4px; margin-block-start: 6px; }
.gb-home-topics__item { display: flex; justify-content: space-between; align-items: center; gap: 8px; padding-block: 9px; border-block-end: 1px solid var(--gb-gray-200); }
.gb-home-topics__name { font-family: var(--gb-font-serif); font-size: 17px; line-height: normal; color: var(--gb-ink); }
.gb-home-topics__count { color: var(--gb-gray-600); }
.gb-home-topics__item:hover .gb-home-topics__name { text-decoration: underline; text-underline-offset: 4px; }

/* ── 미션 + 숫자 (흰 띠, 위아래 선) ──────────────────── */

.gb-home-stats { border-block: 1px solid var(--gb-gray-200); background: var(--gb-white); }
.gb-home-stats__inner { display: flex; gap: 48px; align-items: center; padding-block: 40px; }
.gb-home-stats__inner > div { flex: 0 1 540px; }
.gb-home-stats__mission { margin: 10px 0 0; font-family: var(--gb-font-serif); font-size: 22px; font-weight: 500; line-height: 1.4; }
.gb-home-stats__list { display: grid; flex: 1; grid-template-columns: repeat(4, minmax(0, 150px)); gap: 16px; }
.gb-home-stats__item { display: flex; flex-direction: column-reverse; gap: 4px; justify-content: flex-end; }
.gb-home-stats__num { font-family: var(--gb-font-display-family); font-size: 48px; line-height: normal; color: var(--gb-navy); }
.gb-home-stats__label { color: var(--gb-gray-600); }

/* ── 검색 (남색, I01 158:124) ────────────────────────── */

.gb-home-search { padding-block: 56px 60px; background: var(--gb-navy); color: var(--gb-paper); }
.gb-home-search .gb-home__label { color: var(--gb-gold); }
.gb-home-search__title { margin: 18px 0 0; font-family: var(--gb-font-display-family); font-size: 40px; font-weight: 400; line-height: normal; letter-spacing: 0; color: var(--gb-paper); }
.gb-home-search__text { margin: 18px 0 0; font-family: var(--gb-font-serif); font-size: 18px; line-height: normal; color: var(--gb-paper); }
.gb-home-search__form { display: grid; grid-template-columns: minmax(0, 720fr) minmax(0, 230fr) minmax(0, 230fr) 100px; margin-block-start: 40px; }
.gb-home .gb-home-search__input,
.gb-home .gb-home-search__select { /* .gb-home 을 붙여 테마 기본 입력칸(어두운 바탕)을 이긴다 */
  box-sizing: border-box;
  inline-size: 100%;
  block-size: 54px;
  margin: 0;
  padding: 0 20px;
  border: 1px solid var(--gb-gray-200);
  border-radius: 0;
  background: var(--gb-white);
  font-family: var(--gb-font-family-ui);
  font-size: 15px;
  color: var(--gb-ink);
}
/* Astra 다크 모드는 입력칸 바탕·글자색을 !important 로 칠한다. 회원 화면·검색 결과(list.css)와 같은 방식으로 이 칸에서만 이긴다 */
.gb-home .gb-home-search__input,
.gb-home .gb-home-search__form .gb-home-search__input:focus, /* 폼 클래스까지 — Astra .astra-dark-mode-enable input[type=search]:focus(0,3,1 !important)를 이긴다. 없으면 포커스 때 남색 바탕 (2026-10-04) */
.gb-home .gb-home-search__select,
.gb-home .gb-home-search__select:focus {
  background-color: var(--gb-white) !important;
  border-color: var(--gb-gray-200) !important; /* Astra 다크 모드 테두리 rgb(226,232,240) 대신 토큰 (L123) */
  color: var(--gb-ink) !important;
}
.gb-home-search__input::placeholder { color: var(--gb-gray-600); opacity: 1; }
.gb-home .gb-home-search__select {
  appearance: none;
  padding-inline-end: 40px;
  background-image: linear-gradient(45deg, transparent 50%, var(--gb-navy) 50%), linear-gradient(135deg, var(--gb-navy) 50%, transparent 50%);
  background-position: calc(100% - 22px) 50%, calc(100% - 17px) 50%;
  background-size: 5px 5px;
  background-repeat: no-repeat;
}
.gb-home .gb-home-search__button {
  block-size: 54px;
  margin: 0;
  border: 1px solid var(--gb-gold);
  border-radius: 0;
  background: var(--gb-navy);
  font-family: var(--gb-font-family-ui);
  font-size: 14px;
  font-weight: 500;
  color: var(--gb-paper);
  cursor: pointer;
}
.gb-home-search__button:hover { background: color-mix(in srgb, var(--gb-navy) 85%, var(--gb-white)); }
.gb-home .gb-home-search__input:focus-visible, /* .gb-home 을 붙여야 Astra 검색 입력칸 outline:none 을 이긴다 (2026-10-04 전수조사) */
.gb-home-search__select:focus-visible,
.gb-home-search__button:focus-visible { outline: 2px solid var(--gb-gold); outline-offset: -2px; }

/* ── 최근 연재 4개 (카드 305 = 세로 띠 40 + 그림 265) ── */

.gb-home-series { padding-block: 80px; }
.gb-home-series__head { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; }
.gb-home-series__title-h { margin: 10px 0 0; font-family: var(--gb-font-display-family); font-size: 44px; font-weight: 400; line-height: normal; letter-spacing: 0; color: var(--gb-ink); }
.gb-home-series__list { display: grid; grid-template-columns: repeat(4, minmax(0, 305px)); gap: 20px; justify-content: space-between; margin-block-start: 36px; }
.gb-home-series__card {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  grid-template-rows: 260px auto;
  grid-template-areas: "strip art" "strip body";
  block-size: 380px;
  box-sizing: border-box;
  border: 1px solid var(--gb-gray-200);
  background: var(--gb-white);
}
.gb-home-series__strip {
  grid-area: strip;
  padding-block: 14px;
  border-inline-end: 1px solid var(--gb-gray-200);
  writing-mode: vertical-rl;
  letter-spacing: 0.14em;
  color: var(--gb-navy);
}
.gb-home-series__card--dark .gb-home-series__strip { border-color: var(--gb-navy); background: var(--gb-navy); color: var(--gb-gold); }
.gb-home-series__art--cover { grid-area: art; display: block; }
.gb-home-series__art--thumb,
.gb-home-series__label { display: none; }
.gb-home-series__body { grid-area: body; display: flex; flex-direction: column; gap: 6px; padding: 16px; }
.gb-home-series__title { font-family: var(--gb-font-display-family); font-size: 22px; line-height: 1.15; color: var(--gb-ink); }
.gb-home-series__meta { color: var(--gb-gray-600); }
.gb-home-series__card:hover .gb-home-series__title { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 4px; }

/* ── 차별점 4칸 (그림 400 + 본문 2x2, 본문은 페이지 블록) ── */

.gb-home-why { padding-block: 88px; background: var(--gb-white); }
.gb-home-why__inner { display: flex; gap: 80px; align-items: flex-start; }
.gb-home-why__art { flex: 0 1 400px; display: block; aspect-ratio: 400 / 480; }
.gb-home-why__art--wide { display: none; }
.gb-home-why__body { flex: 0 1 800px; }
.gb-home-why__body h2 { margin: 45px 0 0; font-family: var(--gb-font-display-family); font-size: 40px; font-weight: 400; line-height: normal; letter-spacing: 0; color: var(--gb-ink); }
.gb-home-why__body ol {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 360px));
  gap: 32px 40px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: gb-why;
}
.gb-home-why__body li {
  margin: 0;
  padding-block-start: 20px;
  border-block-start: 1px solid var(--gb-navy);
  font-family: var(--gb-font-family-ui);
  font-size: 14px;
  line-height: 1.5;
  color: var(--gb-gray-600);
  counter-increment: gb-why;
}
.gb-home-why__body li::before {
  content: counter(gb-why, decimal-leading-zero);
  display: block;
  font-family: var(--gb-font-display-family);
  font-size: 30px;
  line-height: normal;
  color: var(--gb-gold);
}
.gb-home-why__body li strong {
  display: block;
  margin-block: 10px;
  font-family: var(--gb-font-serif);
  font-size: 22px;
  font-weight: 600;
  line-height: normal;
  color: var(--gb-ink);
}

/* ── 노트북 폭: 3단 유지, 숫자·연재는 줄인다 ─────────── */

@media (max-width: 1279px) {
  .gb-home { --gb-home-pad: 40px; }
  .gb-home-stats__inner { flex-wrap: wrap; }
  .gb-home-series__list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .gb-home-why__inner { gap: 32px; } /* 32: 제목 한 줄 (GB-57) */
  .gb-home-why__art { flex-shrink: 2; } /* 좁아질 때 그림이 글보다 먼저 줄어든다 — 1024 에서 그림 304에서 296, 글 608에서 696 */
  /* GB-57: 학습 단계 이름 한 줄 — 오른쪽 기둥 여백 40에서 24, 상자 여백 24에서 20, 번호 간격 14에서 10 */
  .gb-home-front__side { padding-inline-start: 24px; }
  .gb-home-path { padding: 20px; }
  .gb-home-path__stage { gap: 10px; }
}

/* ── 모바일 P01 (390) ────────────────────────────────── */

@media (max-width: 1023px) {
  .gb-home { --gb-home-pad: 20px; }

  /* 사진 띠 (P02 205:737): 사진 390x220 위, 아래 110 은 남색으로 녹는다 */
  .gb-home-hero__img { position: static; display: block; inline-size: 100%; block-size: 220px; }
  .gb-home-hero::before { inset-block-start: 110px; inset-block-end: auto; inset-inline: 0; inline-size: auto; block-size: 110px;
    background: linear-gradient(180deg, color-mix(in srgb, var(--gb-navy) 0%, transparent), var(--gb-navy)); }
  .gb-home-hero__body { min-block-size: 0; gap: 16px; padding: 24px 20px 32px; }
  .gb-home-hero__title { font-size: 40px; }
  .gb-home-hero__sub { font-size: 17px; }
  .gb-home-hero__cta { inline-size: 100%; box-sizing: border-box; justify-content: center; line-height: 19px; } /* P02 띠 높이 522 */

  .gb-home-front { display: flex; flex-direction: column; padding-block: 28px 40px; }
  .gb-home-front__feature,
  .gb-home-front__latest,
  .gb-home-front__side { padding-inline: 0; border: 0; }
  .gb-home-feature { gap: 12px; padding-block-end: 32px; }
  .gb-home-feature__title { font-size: 30px; }
  .gb-home-feature__dek { font-size: 17px; }
  .gb-home-front__latest { padding-block: 16px 32px; border-block-start: 1px solid var(--gb-ink); }
  .gb-home-latest__list { gap: 0; margin-block-start: 4px; }
  .gb-home-latest__item a { padding-block: 14px; }
  .gb-home-front__side { gap: 32px; }
  .gb-home-path { padding: 20px; }
  .gb-home-topics__item { padding-block: 12px; }
  .gb-home-topics__list { gap: 0; }

  .gb-home-stats__inner { flex-direction: column; align-items: stretch; gap: 28px; }
  .gb-home-stats__inner > div { flex: none; }
  .gb-home-stats__mission { margin-block-start: 12px; font-size: 20px; }
  .gb-home-stats__list { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
  .gb-home-stats__num { font-size: 40px; }

  .gb-home-search { padding-block: 40px; }
  .gb-home-search__title { margin-block-start: 12px; font-size: 32px; }
  .gb-home-search__text { margin-block-start: 12px; font-size: 17px; line-height: 1.45; }
  .gb-home-search__form { grid-template-columns: minmax(0, 1fr); gap: 8px; margin-block-start: 24px; }
  .gb-home .gb-home-search__input,
  .gb-home .gb-home-search__select { block-size: 48px; padding-inline-start: 16px; }

  .gb-home-series { padding-block: 48px; }
  .gb-home-series__head { flex-direction: column; align-items: flex-start; gap: 12px; }
  .gb-home-series__title-h { margin-block-start: 12px; font-size: 32px; line-height: 1.15; }
  .gb-home-series__list { display: flex; flex-direction: column; gap: 0; margin-block-start: 24px; border-block-start: 1px solid var(--gb-gray-200); }
  .gb-home-series__card {
    display: flex;
    gap: 16px;
    align-items: center;
    block-size: auto;
    padding-block: 16px;
    border: 0;
    border-block-end: 1px solid var(--gb-gray-200);
    background: none;
  }
  .gb-home-series__strip,
  .gb-home-series__art--cover { display: none; }
  .gb-home-series__art--thumb { display: block; flex: none; inline-size: 96px; block-size: 72px; }
  .gb-home-series__label { display: block; color: var(--gb-navy); }
  .gb-home-series__body { padding: 0; min-inline-size: 0; }
  .gb-home-series__title { font-size: 20px; }

  .gb-home-why { padding-block: 48px; }
  .gb-home-why__inner { flex-direction: column; gap: 32px; }
  .gb-home-why__art--tall { display: none; }
  .gb-home-why__art--wide { display: block; flex: none; inline-size: 100%; aspect-ratio: 350 / 200; }
  .gb-home-why__body { flex: none; }
  .gb-home-why__body h2 { margin-block-start: 12px; font-size: 30px; line-height: 1.15; }
  .gb-home-why__body ol { grid-template-columns: minmax(0, 1fr); gap: 20px; margin-block-start: 8px; }
  .gb-home-why__body li { border-color: var(--gb-ink); }
  .gb-home-why__body li::before { font-size: 26px; }
  .gb-home-why__body li strong { margin-block: 8px; font-size: 20px; }
}