/* ============================================================
   연대지능 랜딩 — 한지·낮 (Hanji Daylight)
   poomasi.org 리디자인 프리뷰 · 2026-07-02
   팔레트: 한지 #f5efe2 / 먹 #26221b / 감 #b3641f / 쑥 #4a5d43
   원칙: 카피 불변 · 자체호스팅(외부 에셋 없음) · AA 대비
   ============================================================ */

:root {
  --hanji: #f5efe2;          /* 바탕 한지 */
  --hanji-deep: #ede4d0;     /* 그늘진 한지 */
  --hanji-card: #faf5ea;     /* 카드(밝은 종이) */
  --meok: #26221b;           /* 본문 먹 */
  --meok-deep: #1a1611;      /* 제목 진먹 */
  --meok-faint: #6b6353;     /* 옅은 먹(보조 텍스트) — hanji 위 대비 4.9:1 */
  --gam: #b3641f;            /* 감빛(악센트) */
  --gam-deep: #96500f;       /* 진한 감(텍스트용 대비 확보) */
  --ssuk: #4a5d43;           /* 쑥빛(보조) */
  --line: rgba(38, 34, 27, 0.14);   /* 먹 괘선 */
  /* 라틴 우선 → 한글은 KR로 자동 폴백. 한국어 페이지는 라틴 폰트를 로드하지 않으므로 영향 없음 */
  --serif: "Noto Serif", "Noto Serif KR", serif;
  --sans: "Noto Sans", "Noto Sans KR", sans-serif;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--sans);
  font-weight: 400;
  color: var(--meok);
  background: var(--hanji);
  word-break: keep-all;
  overflow-wrap: break-word;
  line-height: 1.75;
}

/* 종이 결 — SVG 노이즈(데이터 URI, 외부요청 없음). 화면 전체에 아주 옅게. */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 60;               /* 최상단이지만 클릭 통과 */
  pointer-events: none;
  opacity: 0.5;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='p'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' seed='7'/%3E%3CfeColorMatrix type='matrix' values='0 0 0 0 0.55 0 0 0 0 0.50 0 0 0 0 0.42 0 0 0 0.05 0'/%3E%3C/filter%3E%3Crect width='240' height='240' filter='url(%23p)'/%3E%3C/svg%3E");
}

.si-skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 0.6rem 1rem;
  background: var(--meok-deep);
  color: var(--hanji);
  text-decoration: none;
}
.si-skip:focus { left: 1rem; top: 1rem; }

/* ---------- 레이어 구조 ----------
   z0  .si-graph        : 수묵 성좌(3D 그래프, 고정 배경)
   z5  .si-touch-layer  : 모바일 핀치 터치막 (JS가 coarse 포인터에서 생성)
   z10 .si-hero / .si-sections
   z30 그래프 줌 버튼
   z60 종이 결
------------------------------------ */

.solidarity-landing .si-graph {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  background:
    radial-gradient(ellipse at 50% 38%, #f8f3e8 0%, var(--hanji) 55%, var(--hanji-deep) 100%);
  pointer-events: auto;
}
.solidarity-landing .si-graph canvas { display: block; }

/* 모바일 핀치용 투명 터치막 — landing-hanji.js 가 생성.
   pan-y: 한손가락 세로 스크롤은 브라우저 네이티브,
   두손가락은 JS로 들어옴(cancelable) → 그래프 줌. */
.si-touch-layer {
  position: fixed;
  inset: 0;
  z-index: 5;
  background: transparent;
  touch-action: pan-y;
  display: none;
}
@media (pointer: coarse) {
  .solidarity-landing .si-graph { pointer-events: none; }
  .si-touch-layer { display: block; }
}

/* ---------- 그래프 줌 버튼 (모바일에서도 노출 = 핀치 백업) ---------- */
.si-graph-controls {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 30;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.si-graph-controls button {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1;
  color: var(--meok);
  background: rgba(250, 245, 234, 0.82);
  border: 1px solid var(--line);
  border-radius: 10px;
  cursor: pointer;
  box-shadow: 0 1px 4px rgba(38, 34, 27, 0.12);
  backdrop-filter: blur(4px);
  transition: border-color 0.2s ease, background 0.2s ease;
}
.si-graph-controls button:hover {
  border-color: var(--gam);
  background: rgba(179, 100, 31, 0.12);
}
.si-graph-controls button:focus-visible {
  outline: 2px solid var(--gam-deep);
  outline-offset: 2px;
}

/* ---------- 히어로 — 한지 위 먹 대자 ---------- */
.solidarity-landing .si-hero {
  position: relative;
  z-index: 10;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem 1.5rem;
  pointer-events: none;
}

/* 글자 영역 뒤에서만 그래프가 옅어지도록: 한지색 radial 성좌 페이드 */
.solidarity-landing .si-hero .si-hero-inner {
  position: relative;
  max-width: 42rem;
  padding: 3.5rem 3rem;
  background: radial-gradient(
    ellipse 62% 58% at 50% 50%,
    rgba(245, 239, 226, 0.94) 0%,
    rgba(245, 239, 226, 0.78) 55%,
    rgba(245, 239, 226, 0) 100%
  );
}

.solidarity-landing .si-hero h1 {
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(3.2rem, 11vw, 7.5rem);
  line-height: 1.04;
  margin: 0 0 1.4rem;
  letter-spacing: 0.04em;
  color: var(--meok-deep);
}

/* 부제 위 감빛 짧은 괘선 */
.solidarity-landing .si-hero .si-hero-sub {
  position: relative;
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(1.05rem, 3.2vw, 1.4rem);
  color: var(--meok);
  margin: 0 auto 2.6rem;
  max-width: 34rem;
  padding-top: 1.4rem;
}
.solidarity-landing .si-hero .si-hero-sub::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 3.5rem;
  height: 3px;
  background: var(--gam);
}

.solidarity-landing .si-hero .si-hero-join {
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 44px;
  padding: 0.6rem 1.5rem;
  font-size: 1rem;
  color: var(--meok);
  text-decoration: none;
  border: 1px solid rgba(38, 34, 27, 0.3);
  border-radius: 999px;
  background: rgba(250, 245, 234, 0.75);
  backdrop-filter: blur(4px);
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}
.solidarity-landing .si-hero .si-hero-join:hover {
  border-color: var(--gam);
  background: rgba(179, 100, 31, 0.1);
  transform: translateY(-1px);
}
.solidarity-landing .si-hero .si-hero-join:focus-visible {
  outline: 2px solid var(--gam-deep);
  outline-offset: 3px;
}
.solidarity-landing .si-hero .si-hero-join svg { width: 1em; height: 1em; }

.solidarity-landing .si-hero .si-scroll-cue {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  pointer-events: auto;
  cursor: pointer;
  background: transparent;
  border: 0;
  padding: 0.4rem;
  color: var(--meok-faint);
  opacity: 0.85;
}
.solidarity-landing .si-hero .si-scroll-cue:focus-visible {
  outline: 2px solid var(--gam-deep);
  outline-offset: 4px;
  border-radius: 6px;
}
.solidarity-landing .si-hero .si-scroll-cue svg {
  width: 1.6rem;
  height: 1.6rem;
  animation: si-bob 2s ease-in-out infinite;
}
@keyframes si-bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}
@media (prefers-reduced-motion: reduce) {
  .solidarity-landing .si-hero .si-scroll-cue svg { animation: none; }
}

/* ---------- 본문 — 두루마리 리듬 ---------- */
.solidarity-landing .si-sections {
  position: relative;
  z-index: 10;
  background: var(--hanji);
  /* 히어로와의 경계: 옅은 먹 번짐 */
  box-shadow: 0 -1px 0 var(--line), 0 -18px 30px -22px rgba(38, 34, 27, 0.25);
}

.solidarity-landing .si-section {
  padding: 6.5rem 1.5rem;
}
.solidarity-landing .si-section + .si-section {
  border-top: 1px solid var(--line);
}

.solidarity-landing .si-section-inner {
  position: relative;
  max-width: 46rem;
  margin: 0 auto;
}

/* 장 번호 — 一二三四五, 왼쪽 여백에 옅은 먹 */
.solidarity-landing .si-section-inner::before {
  content: "";
  position: absolute;
  top: -0.6rem;
  left: -5.5rem;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 2.2rem;
  line-height: 1;
  color: rgba(38, 34, 27, 0.18);
}
.solidarity-landing .si-section:nth-of-type(1) .si-section-inner::before { content: "一"; }
.solidarity-landing .si-section:nth-of-type(2) .si-section-inner::before { content: "二"; }
.solidarity-landing .si-section:nth-of-type(3) .si-section-inner::before { content: "三"; }
.solidarity-landing .si-section:nth-of-type(4) .si-section-inner::before { content: "四"; }
.solidarity-landing .si-section:nth-of-type(5) .si-section-inner::before { content: "五"; }
@media (max-width: 1100px) {
  .solidarity-landing .si-section-inner::before {
    position: static;
    display: block;
    font-size: 1.5rem;
    margin-bottom: 0.8rem;
  }
}

.solidarity-landing .si-section h2 {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(1.7rem, 4.5vw, 2.4rem);
  color: var(--meok-deep);
  margin: 0 0 0.4rem;
  letter-spacing: 0.02em;
}
/* 제목 아래 감빛 괘선 */
.solidarity-landing .si-section h2::after {
  content: "";
  display: block;
  width: 2.6rem;
  height: 3px;
  margin-top: 0.9rem;
  background: var(--gam);
}

.solidarity-landing .si-section p {
  font-size: 1.08rem;
  margin: 1.6rem 0 0;
  color: var(--meok);
}

/* 리스트 → 한지 카드 */
.solidarity-landing .si-list {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
.solidarity-landing .si-list li {
  position: relative;
  background: var(--hanji-card);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1.3rem 1.4rem 1.3rem 1.7rem;
  font-size: 1.02rem;
  line-height: 1.7;
  box-shadow: 0 1px 3px rgba(38, 34, 27, 0.06);
}
/* 카드 왼쪽 감빛 실괘선 */
.solidarity-landing .si-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.1rem;
  bottom: 1.1rem;
  width: 3px;
  background: linear-gradient(to bottom, var(--gam), rgba(179, 100, 31, 0.25));
}
.solidarity-landing .si-list li b {
  display: block;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.12rem;
  color: var(--meok-deep);
  margin-bottom: 0.35rem;
}
/* 마지막 홀수 카드는 두 칸 폭 */
.solidarity-landing .si-list li:last-child:nth-child(odd) { grid-column: 1 / -1; }
@media (max-width: 720px) {
  .solidarity-landing .si-list { grid-template-columns: 1fr; }
  .solidarity-landing .si-list li:last-child:nth-child(odd) { grid-column: auto; }
}

.solidarity-landing .si-note {
  font-size: 0.95rem;
  color: var(--meok-faint);
  margin-top: 1.6rem;
}

/* ---------- 합류 CTA ---------- */
.solidarity-landing .si-cta-section { text-align: center; }
.solidarity-landing .si-cta-section h2::after { margin-left: auto; margin-right: auto; }

.solidarity-landing .si-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 2.2rem;
  min-height: 52px;
  padding: 0.9rem 2.2rem;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.15rem;
  color: #faf5ea;
  background: var(--gam-deep);
  text-decoration: none;
  /* 도장(印) 느낌 — 비대칭 모서리 하나 */
  border-radius: 3px 16px 3px 3px;
  box-shadow: 0 2px 10px rgba(150, 80, 15, 0.3);
  transition: background 0.2s ease, transform 0.2s ease;
}
.solidarity-landing .si-cta-btn:hover {
  background: var(--gam);
  transform: translateY(-2px);
}
.solidarity-landing .si-cta-btn:focus-visible {
  outline: 3px solid var(--meok-deep);
  outline-offset: 3px;
}
.solidarity-landing .si-cta-btn svg { width: 1.1em; height: 1.1em; }

/* ---------- 생태계 ---------- */
.solidarity-landing .si-ecosystem .si-section-inner { max-width: 62rem; }

.solidarity-landing .si-eco-group { margin-top: 2.8rem; }
.solidarity-landing .si-eco-group:first-of-type { margin-top: 2.2rem; }

.solidarity-landing .si-eco-group-title {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.14em;
  color: var(--meok-faint);
  margin: 0 0 1rem;
  display: flex;
  align-items: center;
  gap: 0.7rem;
}
/* 그룹 제목 앞 먹점 */
.solidarity-landing .si-eco-group-title::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--meok-faint);
}

.solidarity-landing .si-eco-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(15rem, 1fr));
  gap: 0.9rem;
}

.solidarity-landing .si-eco-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  min-height: 64px;
  padding: 1rem 1.2rem;
  background: var(--hanji-card);
  border: 1px solid var(--line);
  border-radius: 4px;
  text-decoration: none;
  color: var(--meok);
  box-shadow: 0 1px 3px rgba(38, 34, 27, 0.06);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}
.solidarity-landing .si-eco-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 18px -8px rgba(38, 34, 27, 0.3);
  border-color: rgba(38, 34, 27, 0.3);
}
.solidarity-landing .si-eco-card:focus-visible {
  outline: 2px solid var(--gam-deep);
  outline-offset: 2px;
}
.solidarity-landing .si-eco-card-title {
  font-weight: 500;
  font-size: 1rem;
  line-height: 1.45;
}
.solidarity-landing .si-eco-card-arrow {
  flex: none;
  color: var(--gam-deep);
  opacity: 0.55;
  transition: opacity 0.18s ease, transform 0.18s ease;
}
.solidarity-landing .si-eco-card:hover .si-eco-card-arrow {
  opacity: 1;
  transform: translateX(3px);
}
.solidarity-landing .si-eco-card-arrow svg { width: 1.1rem; height: 1.1rem; display: block; }

/* 그룹별 색온도 — 먹점·괘선만 바꿔 은은하게 */
.solidarity-landing .si-eco-group:nth-of-type(1) .si-eco-group-title::before { background: var(--gam); }
.solidarity-landing .si-eco-group:nth-of-type(2) .si-eco-group-title::before { background: var(--ssuk); }
.solidarity-landing .si-eco-group:nth-of-type(2) .si-eco-card { background: #f6f3e6; }
.solidarity-landing .si-eco-group:nth-of-type(3) .si-eco-group-title::before { background: #46586b; }
.solidarity-landing .si-eco-group:nth-of-type(3) .si-eco-card { background: #f7f2e8; }
.solidarity-landing .si-eco-group:nth-of-type(4) .si-eco-group-title::before { background: #9c4a3a; }
.solidarity-landing .si-eco-group:nth-of-type(5) .si-eco-group-title::before { background: var(--meok-deep); }

/* ---------- 스크롤 리빌 ---------- */
.solidarity-landing .si-reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.solidarity-landing .si-reveal.is-visible {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  .solidarity-landing .si-reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---------- 디버그 오버레이 (?debug=1) ---------- */
.si-debug {
  position: fixed;
  left: 0.6rem;
  bottom: 0.6rem;
  z-index: 90;
  padding: 0.5rem 0.7rem;
  font: 12px/1.5 monospace;
  color: #faf5ea;
  background: rgba(26, 22, 17, 0.85);
  border-radius: 6px;
  pointer-events: none;
  white-space: pre;
}

/* ---------- 모바일 ---------- */
@media (max-width: 768px) {
  .solidarity-landing .si-hero { padding: 1.5rem 1rem; }
  .solidarity-landing .si-hero .si-hero-inner { padding: 2.5rem 1.2rem; }
  .solidarity-landing .si-section { padding: 4.5rem 1.25rem; }
  .solidarity-landing .si-ecosystem .si-eco-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   다국어 (2026-07-20) — 영문판 /en/ 추가에 따른 배관
   한국어 페이지에도 동일 클래스 사용. 기존 규칙 변경 없이 추가만.
   ============================================================ */

/* 언어 전환 — 우상단 고정.
   ⚠ .si-graph-controls(줌 버튼, 42px 폭)가 right:1rem에 이미 있으므로
   그 왼쪽으로 비켜서 배치한다. 겹치면 줌 버튼이 가려진다. */
.solidarity-landing .si-lang {
  position: fixed;
  top: 1rem;
  right: 4.6rem;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--sans);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  padding: 0.4rem 0.85rem;
  background: rgba(250, 245, 234, 0.82);
  border: 1px solid var(--line);
  border-radius: 999px;
  backdrop-filter: blur(6px);
}
.solidarity-landing .si-lang a {
  color: var(--meok-faint);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.solidarity-landing .si-lang a:hover,
.solidarity-landing .si-lang a:focus-visible {
  color: var(--gam-deep);
  border-bottom-color: var(--gam-deep);
}
.solidarity-landing .si-lang b {
  color: var(--meok-deep);
  font-weight: 500;
}
.solidarity-landing .si-lang span { color: var(--line); }

/* 링크 대상 언어 표시 배지 — 영문 페이지에서 한국어 사이트로 나갈 때 */
.solidarity-landing .si-lang-tag {
  display: inline-block;
  margin-left: 0.5rem;
  padding: 0.05rem 0.45rem;
  font-family: var(--sans);
  font-size: 0.72em;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--meok-faint);
  background: var(--hanji-deep);
  border-radius: 999px;
  vertical-align: 0.1em;
}

/* 꼬리말 */
.solidarity-landing .si-foot {
  padding-top: 2rem;
  padding-bottom: 4rem;
  border-top: 1px solid var(--line);
}
.solidarity-landing .si-foot .si-note { margin-top: 0; }
.solidarity-landing .si-foot a { color: var(--gam-deep); }

@media (max-width: 768px) {
  .solidarity-landing .si-lang {
    top: 0.65rem;
    right: 4rem;
    font-size: 0.8rem;
    padding: 0.3rem 0.7rem;
  }
}

/* 영문 히어로 — 한글 4글자("연대지능") 기준 대자 크기는 영어 장문 단어를 넘치게 한다.
   "Intelligence" 한 단어가 컨테이너를 초과하면 단어 중간에서 끊긴다. 영문에서만 축소·비분절. */
html[lang="en"] .solidarity-landing .si-hero h1 {
  font-size: clamp(2.4rem, 7vw, 4.6rem);
  letter-spacing: 0.01em;
  line-height: 1.08;
  overflow-wrap: normal;
  word-break: normal;
  hyphens: none;
}
html[lang="en"] .solidarity-landing .si-hero .si-hero-inner { max-width: 46rem; }
html[lang="en"] .solidarity-landing .si-hero .si-hero-sub { max-width: 32rem; }

@media (max-width: 480px) {
  html[lang="en"] .solidarity-landing .si-hero .si-hero-inner { padding-left: 0.9rem; padding-right: 0.9rem; }
}