/*
 * 과목별학원 전용 UI
 * 기존 site.css의 색상 체계를 유지하면서, 허브와 지역 상세 페이지를
 * 모바일 우선으로 읽고 탐색하기 쉽게 정리합니다.
 */

main {
  padding-bottom: 28px;
}

main > .page-hero,
main > .section {
  width: min(1180px, calc(100% - 28px));
  margin-right: auto;
  margin-left: auto;
}

.page-hero {
  position: relative;
  overflow: hidden;
  margin-top: 22px;
  padding: 28px 22px 30px;
  border: 1px solid rgba(21, 33, 29, 0.12);
  border-radius: 30px;
  background:
    radial-gradient(circle at 92% 8%, rgba(232, 255, 143, 0.72), transparent 15rem),
    radial-gradient(circle at 7% 96%, rgba(57, 198, 163, 0.2), transparent 18rem),
    rgba(255, 253, 247, 0.92);
  box-shadow: 0 18px 46px rgba(21, 33, 29, 0.09);
}

.page-hero::after {
  position: absolute;
  right: -38px;
  bottom: -58px;
  width: 150px;
  height: 150px;
  border: 1px solid rgba(20, 138, 115, 0.2);
  border-radius: 50%;
  content: "";
  pointer-events: none;
}

.page-hero > * {
  position: relative;
  z-index: 1;
}

.page-hero h1 {
  max-width: 900px;
  margin-bottom: 18px;
  font-size: clamp(34px, 10vw, 62px);
  line-height: 1.08;
  letter-spacing: -0.062em;
}

.page-hero .lead {
  max-width: 780px;
  margin-bottom: 0;
  color: var(--ink-2);
  font-size: clamp(16px, 4.2vw, 19px);
  line-height: 1.75;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 8px;
  margin: 0 0 22px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 750;
}

.breadcrumb a {
  color: var(--mint-dark);
  text-decoration: underline;
  text-decoration-color: rgba(20, 138, 115, 0.3);
  text-underline-offset: 4px;
}

.breadcrumb [aria-current="page"] {
  color: var(--ink-2);
}

.page-hero .eyebrow,
.section-head .eyebrow {
  margin-bottom: 14px;
}

main > .section {
  padding: 48px 0;
}

main > .section + .section {
  border-top: 1px solid rgba(21, 33, 29, 0.1);
}

.section-head {
  max-width: 820px;
  margin-bottom: 24px;
}

.section-head h2,
.subject-copy-card h2 {
  text-wrap: balance;
}

.section-head h2 {
  font-size: clamp(28px, 7.4vw, 46px);
  line-height: 1.2;
}

.section-head .lead {
  color: var(--ink-2);
  font-size: 16px;
  line-height: 1.78;
}

/* 허브: 학년·과목 선택 */
.subject-category-grid,
.subject-related-grid,
.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.subject-category-card,
.subject-related-link,
.info-card {
  position: relative;
  min-width: 0;
  padding: 20px;
  border: 1px solid rgba(21, 33, 29, 0.12);
  border-radius: 22px;
  background: rgba(255, 253, 247, 0.9);
  box-shadow: 0 12px 30px rgba(21, 33, 29, 0.06);
}

.subject-category-card,
.subject-related-link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 4px 13px;
  align-items: center;
  min-height: 88px;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.subject-category-card::after,
.subject-related-link::after {
  grid-column: 3;
  grid-row: 1 / span 2;
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 50%;
  background: var(--ink);
  color: var(--lime);
  content: "→";
  font-weight: 950;
}

.subject-category-card span {
  grid-column: 1;
  grid-row: 1 / span 2;
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 13px;
  background: var(--sage);
  color: var(--mint-dark);
  font-size: 12px;
  font-weight: 950;
}

.subject-category-card strong,
.subject-related-link strong {
  min-width: 0;
  color: var(--ink);
  font-size: 16px;
  line-height: 1.42;
  overflow-wrap: anywhere;
}

.subject-category-card small,
.subject-related-link small {
  grid-column: 2;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.subject-category-card:hover,
.subject-related-link:hover {
  border-color: rgba(20, 138, 115, 0.54);
  box-shadow: 0 17px 38px rgba(21, 33, 29, 0.1);
  transform: translateY(-2px);
}

.info-card {
  min-height: 170px;
}

.info-card .tag {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--mint-dark);
  font-size: 12px;
  font-weight: 950;
}

.info-card h3 {
  margin-bottom: 9px;
  font-size: 20px;
  letter-spacing: -0.04em;
}

.info-card p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 14px;
}

/* 카테고리 허브: 371개 지역 찾기 */
.subject-count {
  display: inline-grid;
  grid-template-columns: auto auto;
  gap: 2px 10px;
  align-items: end;
  margin-top: 24px;
  padding: 14px 18px;
  border: 1px solid rgba(21, 33, 29, 0.11);
  border-radius: 20px;
  background: rgba(255, 253, 247, 0.82);
}

.subject-count strong {
  color: var(--mint-dark);
  font-size: 32px;
  line-height: 1;
  letter-spacing: -0.05em;
}

.subject-count span {
  color: var(--ink-2);
  font-size: 13px;
  font-weight: 850;
}

.subject-directory {
  scroll-margin-top: 90px;
}

.region-jump {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  margin: 0 -2px 22px;
  padding: 2px 2px 12px;
  scrollbar-width: thin;
  scroll-snap-type: x proximity;
}

.region-jump a {
  flex: 0 0 auto;
  min-height: 40px;
  padding: 9px 16px;
  border: 1px solid rgba(21, 33, 29, 0.12);
  border-radius: 999px;
  background: var(--paper);
  color: var(--ink-2);
  font-size: 13px;
  font-weight: 850;
  scroll-snap-align: start;
}

.region-jump a:hover,
.region-jump a:focus-visible {
  border-color: var(--mint-dark);
  background: var(--sage);
  color: var(--mint-dark);
}

.region-block {
  scroll-margin-top: 100px;
  padding: 22px 16px;
  border: 1px solid rgba(21, 33, 29, 0.12);
  border-radius: 26px;
  background: rgba(255, 253, 247, 0.8);
  box-shadow: 0 14px 36px rgba(21, 33, 29, 0.055);
}

.region-block + .region-block {
  margin-top: 16px;
}

.region-title {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 22px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(21, 33, 29, 0.12);
}

.region-title h2 {
  margin: 0;
  font-size: 28px;
  letter-spacing: -0.05em;
}

.region-title span {
  flex: 0 0 auto;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.subject-district + .subject-district {
  margin-top: 26px;
}

.subject-district h3 {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 12px;
  color: var(--ink-2);
  font-size: 17px;
  letter-spacing: -0.035em;
}

.subject-district h3 small {
  color: var(--muted);
  font-size: 11px;
  font-weight: 750;
}

.subject-local-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.subject-local-grid a {
  display: flex;
  min-width: 0;
  min-height: 64px;
  flex-direction: column;
  justify-content: center;
  gap: 3px;
  padding: 12px;
  border: 1px solid rgba(21, 33, 29, 0.1);
  border-radius: 16px;
  background: #fff;
  transition: border-color 0.18s ease, background-color 0.18s ease;
}

.subject-local-grid a:hover,
.subject-local-grid a:focus-visible {
  border-color: var(--mint-dark);
  background: rgba(220, 238, 229, 0.7);
}

.subject-local-grid strong {
  color: var(--ink);
  font-size: 14px;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.subject-local-grid small {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.35;
}

/* 지역 상세: 이미지 */
.subject-media-section {
  padding-top: 24px;
}

.media-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.frame {
  overflow: hidden;
  margin: 0;
  border: 1px solid rgba(21, 33, 29, 0.12);
  border-radius: 24px;
  background: var(--paper);
  box-shadow: 0 14px 34px rgba(21, 33, 29, 0.07);
}

.frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
  background: #fff;
}

.frame figcaption {
  padding: 12px 15px 14px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 750;
}

/* 핵심 답변 */
.subject-answer-summary,
.subject-center-card {
  padding: 30px 20px !important;
  border: 1px solid rgba(21, 33, 29, 0.12) !important;
  border-radius: 28px;
  background: rgba(255, 253, 247, 0.88);
  box-shadow: 0 16px 42px rgba(21, 33, 29, 0.07);
}

.subject-answer-summary + .subject-manuscript,
.subject-manuscript + .subject-center-card {
  margin-top: 18px;
}

.subject-fact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 9px;
}

.subject-fact-grid article {
  min-width: 0;
  padding: 18px;
  border-radius: 19px;
  background: linear-gradient(135deg, rgba(220, 238, 229, 0.8), rgba(255, 253, 247, 0.94));
}

.subject-fact-grid span {
  display: block;
  margin-bottom: 5px;
  color: var(--mint-dark);
  font-size: 11px;
  font-weight: 950;
}

.subject-fact-grid strong {
  display: block;
  color: var(--ink);
  font-size: 18px;
  letter-spacing: -0.035em;
}

.subject-fact-grid p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 13px;
}

/* 긴 원고를 모바일에서도 끊어 읽을 수 있는 카드 구조 */
.subject-intro {
  margin-bottom: 16px;
  padding: 22px 20px;
  border: 1px solid rgba(20, 138, 115, 0.18);
  border-left: 4px solid var(--mint-dark);
  border-radius: 0 22px 22px 0;
  background: rgba(220, 238, 229, 0.58);
}

.subject-intro p {
  margin-bottom: 0;
  color: var(--ink-2);
  font-size: 15px;
  line-height: 1.88;
}

.subject-intro p + p {
  margin-top: 13px;
}

.subject-copy-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 13px;
}

.subject-copy-card {
  min-width: 0;
  padding: 23px 20px;
  border: 1px solid rgba(21, 33, 29, 0.11);
  border-radius: 23px;
  background: rgba(255, 253, 247, 0.9);
  box-shadow: 0 11px 28px rgba(21, 33, 29, 0.05);
}

.subject-copy-index {
  display: inline-grid;
  width: 34px;
  height: 34px;
  place-items: center;
  margin-bottom: 16px;
  border-radius: 12px;
  background: var(--ink);
  color: var(--lime);
  font-size: 11px;
  font-weight: 950;
}

.subject-copy-card h2 {
  margin-bottom: 12px;
  color: var(--ink);
  font-size: clamp(21px, 5.5vw, 28px);
  line-height: 1.36;
  letter-spacing: -0.045em;
}

.subject-copy-card p {
  margin-bottom: 0;
  color: var(--ink-2);
  font-size: 15px;
  line-height: 1.9;
}

.subject-copy-card p + p {
  margin-top: 13px;
}

/* 센터 사실 정보 */
.subject-center-card {
  border-top: 4px solid var(--mint-dark) !important;
}

.subject-service-area-notice {
  margin: 0 0 20px;
  padding: 15px 17px;
  border-radius: 16px;
  background: rgba(232, 255, 143, 0.36);
  color: var(--ink-2);
  font-size: 13px;
  line-height: 1.72;
}

.subject-center-facts {
  margin: 0 0 22px;
  border-top: 1px solid var(--ink);
}

.subject-center-facts > div {
  display: grid;
  gap: 5px;
  padding: 16px 2px;
  border-bottom: 1px solid rgba(21, 33, 29, 0.11);
}

.subject-center-facts dt {
  color: var(--mint-dark);
  font-size: 12px;
  font-weight: 950;
}

.subject-center-facts dd {
  margin: 0;
  color: var(--ink-2);
  font-size: 14px;
  line-height: 1.7;
}

.subject-center-facts ul {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.subject-center-facts li {
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--sage);
  color: var(--ink-2);
  font-size: 12px;
  font-weight: 750;
}

/* FAQ / 상담 상황 */
.faq-list {
  overflow: hidden;
  border: 1px solid rgba(21, 33, 29, 0.12);
  border-radius: 24px;
  background: rgba(255, 253, 247, 0.9);
}

.faq-item + .faq-item {
  border-top: 1px solid rgba(21, 33, 29, 0.1);
}

.faq-item summary {
  display: flex;
  min-height: 66px;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 18px;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 900;
  line-height: 1.55;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  display: grid;
  width: 30px;
  height: 30px;
  flex: 0 0 30px;
  place-items: center;
  border-radius: 50%;
  background: var(--sage);
  color: var(--mint-dark);
  content: "+";
  font-size: 19px;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-item p {
  max-width: 880px;
  margin: 0;
  padding: 0 18px 20px;
  color: var(--ink-2);
  font-size: 14px;
  line-height: 1.82;
}

.review-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.review-card {
  padding: 21px 19px;
  border: 1px solid rgba(21, 33, 29, 0.11);
  border-radius: 22px;
  background: rgba(255, 253, 247, 0.92);
  box-shadow: 0 10px 28px rgba(21, 33, 29, 0.05);
}

.review-label {
  display: inline-flex;
  margin-bottom: 10px;
  padding: 5px 10px;
  border-radius: 999px;
  background: var(--sage);
  color: var(--mint-dark);
  font-size: 11px;
  font-weight: 950;
}

.review-card p {
  margin-bottom: 0;
  color: var(--ink-2);
  font-size: 14px;
  line-height: 1.8;
}

/* 접근성 */
.subject-category-card:focus-visible,
.subject-related-link:focus-visible,
.subject-local-grid a:focus-visible,
.region-jump a:focus-visible,
.faq-item summary:focus-visible {
  outline: 3px solid rgba(20, 138, 115, 0.38);
  outline-offset: 3px;
}

@media (min-width: 680px) {
  main > .page-hero,
  main > .section {
    width: min(1180px, calc(100% - 40px));
  }

  .page-hero {
    margin-top: 34px;
    padding: 46px 42px 48px;
    border-radius: 38px;
  }

  main > .section {
    padding: 62px 0;
  }

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

  .card-grid,
  .review-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .region-block {
    padding: 30px 28px;
  }

  .subject-local-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .media-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }

  .subject-fact-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .subject-center-facts > div {
    grid-template-columns: minmax(120px, 0.28fr) minmax(0, 1fr);
    gap: 22px;
  }
}

@media (min-width: 980px) {
  .subject-category-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .subject-related-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .subject-local-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .subject-answer-summary,
  .subject-center-card {
    padding: 42px 40px !important;
  }
}

@media (max-width: 560px) {
  .subject-local-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .subject-local-grid a {
    min-height: 62px;
  }

  .subject-category-card,
  .subject-related-link {
    padding: 17px 15px;
  }

  .subject-media-section {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .subject-category-card,
  .subject-related-link {
    transition: none;
  }
}