@charset "utf-8";
/* =========================================================
   강원희국어학원 & 파피루스문해원 — 발자취 (iframe 없이 직접 삽입용)
   모든 규칙이 #kwh-history 안으로 한정되어 테마와 충돌하지 않습니다.
   sticky / fixed 를 브라우저가 직접 처리하므로 스크롤이 밀리지 않습니다.
   ========================================================= */


/* ── 숫자 전용 서체 ────────────────────────── */
@font-face{
  font-family:"Puradak Gentle Gothic";
  src:url("../fonts/PuradakGentleGothic.woff2") format("woff2");
  font-weight:400 900;font-style:normal;font-display:swap;
}

#kwh-history{
  --vh:1vh;
  --maxw:1440px;
  --pad:clamp(20px,5vw,64px);
  --ease:cubic-bezier(.22,.61,.24,1);

  --sans:"Pretendard Variable",Pretendard,-apple-system,BlinkMacSystemFont,
         "Apple SD Gothic Neo","Malgun Gothic",sans-serif;
  --display:"Puradak Gentle Gothic",var(--sans);

  --tracking:-.035em;
  --tracking-block:-.028em;
  --tracking-body:-.018em;

  --black:#0a0a0a;
  --gold:#dfa93b;
  --gold-2:#f2d494;
  --gold-deep:#a9791f;

  --text:#131316;
  --dim:#6a6a70;
  --on-dark:#f2f2f2;

  --grain-url:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)'/%3E%3C/svg%3E");
}

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

#kwh-history{
  font-family:var(--sans);font-weight:500;
  background:var(--black);color:var(--on-dark);
  line-height:1.75;letter-spacing:var(--tracking-body);
  -webkit-font-smoothing:antialiased;
  /* 좌우 full-bleed */
  width:100vw;max-width:none;
  margin-left:calc(50% - 50vw);margin-right:calc(50% - 50vw);
  overflow-x:clip;
  /* 하단 고정 탭 자리는 타임라인(베이지) 안에서 확보합니다.
     여기에 여백을 주면 푸터 위에 검은 띠가 생깁니다. */
}
#kwh-history img{max-width:100%;display:block;}
#kwh-history ul,#kwh-history li{margin:0;padding:0;list-style:none;}
#kwh-history p,#kwh-history h1,#kwh-history h2,#kwh-history h3{margin:0;}
#kwh-history a{color:inherit;text-decoration:none;}
#kwh-history ul{list-style:none;}
#kwh-history ::selection{background:rgba(223,169,59,.35);color:#fff;}

#kwh-history .wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 var(--pad);}
#kwh-history .gold{color:var(--gold);}
#kwh-history .n{font-family:var(--display);letter-spacing:.01em;}

/* ── 재질(그레인) 레이어 ─────────────────── */
#kwh-history .fx{position:absolute;inset:0;overflow:hidden;pointer-events:none;z-index:1;}
#kwh-history .fx__grain{
  position:absolute;inset:-50%;
  background-image:var(--grain-url);background-size:300px 300px;
  opacity:.09;mix-blend-mode:overlay;
  animation:grainShift 8s steps(6) infinite;
}
@keyframes grainShift{
  0%,100%{transform:translate(0,0)}
  20%{transform:translate(-1.5%,1.2%)}
  40%{transform:translate(1.2%,-1%)}
  60%{transform:translate(-1%,-1.4%)}
  80%{transform:translate(1.4%,1%)}
}
/* ── 스크롤 진행바 ────────────────────────── */
#kwh-history .scroll-progress{
  position:fixed;top:0;left:0;width:100%;height:2px;z-index:200;
  background:rgba(255,255,255,.08);
}
#kwh-history .scroll-progress span{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--gold-deep),var(--gold),var(--gold-2));
}

/* =========================================================
   01 · 인트로 — 배경 이미지 + 확대 효과 (선 없음)
   ========================================================= */
#kwh-history .intro{
  position:relative;width:100%;overflow:hidden;
  min-height:clamp(520px,calc(var(--vh) * 78),860px);
  display:flex;align-items:center;
  padding:clamp(90px,12vw,150px) 0 clamp(80px,10vw,130px);
}
/* 배경 이미지 : images/history-hero.jpg */
#kwh-history .intro__media{
  position:absolute;inset:0;
  background-image:
    url("../images/history-hero.jpg"),
    radial-gradient(70% 52% at 30% 30%,rgba(223,169,59,.20),rgba(223,169,59,0) 62%),
    linear-gradient(180deg,#16161a 0%,#0d0d10 52%,#0a0a0b 100%);
  background-size:cover;background-position:center;background-repeat:no-repeat;
  transform:scale(1.06) translateY(1.4%);
  animation:introZoom 16s ease-in-out infinite alternate;
}
/* 켄 번스 : 좌우 이동 없이 위로만 올라가며 확대 */
@keyframes introZoom{
  from{transform:scale(1.06) translateY(1.4%);}
  to  {transform:scale(1.22) translateY(-1.4%);}
}
#kwh-history .intro__veil{
  position:absolute;inset:0;
  background:
    radial-gradient(88% 78% at 50% 42%,rgba(6,6,8,.20) 0%,rgba(5,5,7,.56) 70%,rgba(3,3,5,.74) 100%),
    linear-gradient(180deg,rgba(10,10,10,.60) 0%,rgba(10,10,10,.34) 40%,
                    rgba(10,10,10,.52) 72%,var(--black) 100%);
}
#kwh-history .intro__inner{position:relative;z-index:3;text-align:center;max-width:900px;}
#kwh-history .intro__eyebrow{
  font-size:.76rem;font-weight:800;letter-spacing:.32em;color:var(--gold);
}
#kwh-history .intro__title{
  margin-top:20px;font-size:clamp(1.9rem,4.6vw,3.5rem);font-weight:700;
  line-height:1.36;letter-spacing:var(--tracking);
  color:rgba(255,255,255,.9);text-shadow:0 2px 26px rgba(0,0,0,.6);
}
#kwh-history .intro__title .gold{font-weight:800;color:var(--gold);}
/* 좁은 화면에서는 "강원희국어학원 &" / "파피루스문해원" / "발자취" 세 줄로 */
@media (max-width:620px){
  #kwh-history .intro__title .t-a{display:block;}
}
#kwh-history .intro__lede{
  margin:28px auto 0;max-width:62ch;
  font-size:clamp(.96rem,1.34vw,1.08rem);line-height:2;
  color:rgba(255,255,255,.72);text-shadow:0 2px 18px rgba(0,0,0,.55);
}
#kwh-history .intro__lede--em{
  margin-top:18px;color:var(--gold-2);font-weight:600;
}

/* =========================================================
   03 · 타임라인 — 대표 인사말 하단과 동일한 베이지 그라데이션
   ========================================================= */
#kwh-history .timeline{
  position:relative;color:var(--text);
  padding:clamp(70px,9vw,120px) 0 clamp(150px,calc(var(--vh) * 18),260px);
  background:
    radial-gradient(78% 52% at 50% 100%,rgba(238,224,197,.82) 0%,rgba(238,224,197,0) 66%),
    linear-gradient(180deg,#ffffff 0%,#fffdf6 40%,#f7f0e2 100%);
}

/* 가운데 레일 */
#kwh-history .rail{
  position:absolute;left:50%;top:0;bottom:0;width:2px;
  transform:translateX(-50%);pointer-events:none;z-index:2;
}
#kwh-history .rail__track{
  position:absolute;inset:0;background:rgba(169,121,31,.20);border-radius:2px;
}
#kwh-history .rail__fill{
  position:absolute;left:0;top:0;width:100%;height:0;border-radius:2px;
  background:linear-gradient(180deg,var(--gold-deep),var(--gold) 60%,var(--gold-2));
  box-shadow:0 0 16px rgba(223,169,59,.55);
}
#kwh-history .rail__dot{
  position:absolute;left:50%;top:0;width:15px;height:15px;border-radius:50%;
  transform:translate(-50%,-50%);
  background:var(--gold);border:3px solid #fff;
  box-shadow:0 0 0 4px rgba(223,169,59,.28);
}

/* ── 단계 ─────────────────────────────────── */
#kwh-history .ph{position:relative;padding:clamp(40px,6vw,80px) 0;}
#kwh-history .ph__grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) clamp(56px,8vw,130px) minmax(0,1fr);
  /* 사진과 연혁이 같은 높이에서 시작하도록 두 칸을 위쪽에 맞춥니다 */
  align-items:start;
}
/* 사진이 오른쪽 : 본문 1열 · 사진 3열
   ※ grid-row 를 명시하지 않으면, DOM 상 뒤에 오는 본문이
      자동 배치 규칙 때문에 다음 줄로 밀려 사진보다 아래에서 시작합니다. */
#kwh-history .ph--right .ph__body{grid-column:1;grid-row:1;}
#kwh-history .ph--right .ph__media{grid-column:3;grid-row:1;}
/* 사진이 왼쪽 : 사진 1열 · 본문 3열 */
#kwh-history .ph--left  .ph__media{grid-column:1;grid-row:1;}
#kwh-history .ph--left  .ph__body{grid-column:3;grid-row:1;}

/* 사진 영역
   PC 에서는 고정하지 않습니다. 사진 칸과 연혁 칸이 같은 줄에서
   나란히 시작해, 두 내용의 시작점이 정확히 맞습니다. */
#kwh-history .ph__media{position:relative;}
#kwh-history .ph__stack{
  /* 사진 세로 길이를 기존(4:3)보다 약 1/3 줄였습니다 */
  position:relative;width:100%;aspect-ratio:2/1;
  border-radius:20px;overflow:hidden;
  background:
    repeating-linear-gradient(135deg,rgba(10,10,10,.045) 0 12px,transparent 12px 24px),
    linear-gradient(140deg,#efe7d8,#fbf7f0);
}
#kwh-history .shot{
  position:absolute;inset:0;width:100%;height:100%;display:grid;place-items:center;
  opacity:0;transform:scale(1.04);
  transition:opacity .9s var(--ease),transform 1.4s var(--ease);
}
#kwh-history .shot.is-on{opacity:1;transform:scale(1);}
#kwh-history .shot img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
#kwh-history .shot img ~ .ph-slot{display:none;}
#kwh-history .ph-slot{
  position:relative;text-align:center;font-size:.78rem;font-weight:600;
  color:rgba(19,19,22,.5);line-height:1.7;padding:0 18px;
}
#kwh-history .ph-slot b{
  display:block;width:max-content;margin:0 auto 8px;padding:6px 14px;
  border-radius:999px;background:var(--gold);color:var(--black);
  font-size:.66rem;font-weight:800;letter-spacing:.14em;
}
#kwh-history .ph-slot em{display:block;margin-top:4px;font-style:normal;color:rgba(19,19,22,.36);}

#kwh-history .ph__cap{margin-top:24px;}
#kwh-history .ph__range{
  font-family:var(--display);font-weight:700;
  font-size:clamp(1.9rem,3.6vw,2.9rem);line-height:1.1;
  color:var(--gold-deep);letter-spacing:.01em;
}
#kwh-history .ph__name{
  margin-top:10px;font-size:clamp(1.12rem,1.9vw,1.42rem);font-weight:800;
  letter-spacing:var(--tracking-block);color:var(--text);
}
#kwh-history .ph__desc{margin-top:6px;font-size:.94rem;color:var(--dim);}

/* ── 연혁 리스트 ──────────────────────────── */
/* 사진 위쪽 끝과 'PHASE 00' 줄의 위쪽 끝을 같은 높이에 둡니다 */
#kwh-history .ph__body{padding-top:0;}
#kwh-history .ph__no{
  font-size:.78rem;font-weight:800;letter-spacing:.24em;color:var(--gold-deep);
  padding-bottom:16px;border-bottom:1px solid rgba(169,121,31,.28);
}
#kwh-history .ph__no .n{font-weight:700;}
#kwh-history .tl{margin-top:6px;}
#kwh-history .tl__row{padding:clamp(20px,2.6vw,30px) 0;border-bottom:1px solid rgba(169,121,31,.16);}
#kwh-history .tl__row:last-child{border-bottom:0;}
#kwh-history .tl__yr{
  font-weight:700;font-size:clamp(1.06rem,1.6vw,1.3rem);
  color:var(--gold-deep);margin-bottom:8px;
}
#kwh-history .tl__list li{
  position:relative;padding-left:16px;margin-top:4px;
  font-size:.97rem;line-height:1.85;color:#3f3a33;word-break:keep-all;
}
#kwh-history .tl__list li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:5px;height:5px;border-radius:50%;background:var(--gold);
}

/* =========================================================
   04 · 하단 고정 탭
   ========================================================= */
#kwh-history .phasebar{
  position:fixed;left:0;bottom:0;width:100%;z-index:150;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(14px);
  border-top:1px solid rgba(169,121,31,.26);
  transform:translateY(110%);
  transition:transform .5s var(--ease);
}
#kwh-history .phasebar.is-on{transform:translateY(0);}
#kwh-history .phasebar__inner{
  position:relative;
  width:100%;max-width:var(--maxw);margin:0 auto;padding:0 var(--pad);
  display:grid;grid-template-columns:repeat(4,1fr);
}
#kwh-history .ptab{
  padding:18px 10px 20px;text-align:center;
  transition:background .35s var(--ease);
}
#kwh-history .ptab:hover{background:rgba(223,169,59,.10);}
#kwh-history .ptab__name{
  display:block;font-size:.92rem;font-weight:700;
  letter-spacing:var(--tracking-block);color:#8b8579;
  transition:color .35s var(--ease);
  word-break:keep-all;
}
#kwh-history .ptab__yr{
  display:block;margin-top:3px;font-size:.8rem;font-weight:700;
  color:#b3ac9d;transition:color .35s var(--ease);
}
#kwh-history .ptab.is-on .ptab__name{color:var(--text);}
#kwh-history .ptab.is-on .ptab__yr{color:var(--gold-deep);}
/* 활성 표시 막대 */
#kwh-history .phasebar__bar{
  position:absolute;left:0;bottom:0;height:3px;width:0;
  background:linear-gradient(90deg,var(--gold-deep),var(--gold));
  transition:transform .45s var(--ease),width .45s var(--ease);
}

/* =========================================================
   스크롤 리빌 (반복 재생)
   ========================================================= */
#kwh-history .reveal{
  opacity:0;transform:translateY(30px);
  transition:opacity .95s var(--ease),transform .95s var(--ease);
  transition-delay:var(--delay,0ms);
}
#kwh-history .reveal.is-in{opacity:1;transform:none;}
#kwh-history .reveal--left{transform:translateX(-40px);}
#kwh-history .reveal--right{transform:translateX(40px);}
#kwh-history .reveal--left.is-in, #kwh-history .reveal--right.is-in{transform:none;}

@media (prefers-reduced-motion:reduce){
  #kwh-history *{animation-duration:.001ms!important;transition-duration:.001ms!important;}
  #kwh-history .reveal{opacity:1;transform:none;}
}
#kwh-history :focus-visible{outline:2px solid var(--gold);outline-offset:3px;}

/* =========================================================
   반응형
   ========================================================= */
@media (max-width:1100px){
  #kwh-history .ph__grid{grid-template-columns:minmax(0,1fr) clamp(40px,5vw,70px) minmax(0,1fr);}
}
@media (max-width:900px){
  /* (검은 여백 제거 — 위 주석 참고) */
  /* 한 줄 배치 : 레일은 왼쪽으로 */
  #kwh-history .rail{left:14px;transform:none;}
  #kwh-history .ph__grid{
    grid-template-columns:1fr;grid-template-rows:auto auto;
    gap:26px;padding-left:46px;
    min-height:calc(var(--vh) * 108);
  }
  #kwh-history .ph[data-phase="04"] .ph__grid{min-height:calc(var(--vh) * 175);}
  /* 모바일 : '사진만' 화면 상단에 붙습니다 (브라우저 native sticky).
     사진 블록과 연혁 글을 같은 칸에 겹쳐 놓고, 글을 사진 높이만큼
     아래에서 시작시켜 사진이 구간 내내 머물 수 있게 합니다. */
  #kwh-history .ph__grid{grid-template-rows:1fr;}
  #kwh-history .ph__stack{max-height:none;}
  #kwh-history .tl{display:block;padding-bottom:0;}
  #kwh-history .ph--right .ph__media,
  #kwh-history .ph--left  .ph__media{
    grid-row:1;grid-column:1;align-self:stretch;
    position:relative;top:auto;height:auto;display:block;
    pointer-events:none;
  }
  #kwh-history .ph__stack{
    position:sticky;top:12px;z-index:6;pointer-events:auto;
    background:#fffdf7;
    box-shadow:0 16px 26px -18px rgba(94,72,32,.55);
  }
  #kwh-history .ph__stack::after{
    content:"";position:absolute;left:0;right:0;top:100%;height:20px;
    background:linear-gradient(#fffdf7,rgba(255,253,247,0));
    pointer-events:none;
  }
  #kwh-history .ph__cap{pointer-events:auto;}
  #kwh-history .ph--right .ph__body,
  #kwh-history .ph--left  .ph__body{
    grid-row:1;grid-column:1;
    margin-top:var(--mobile-offset,470px);
    position:relative;z-index:1;
  }
  /* 좁은 화면에서는 가로로 넘겨 보는 탭 */
  #kwh-history .phasebar__inner{
    display:flex;overflow-x:auto;
    -webkit-overflow-scrolling:touch;scrollbar-width:none;
  }
  #kwh-history .phasebar__inner::-webkit-scrollbar{display:none;}
  #kwh-history .ptab{flex:0 0 auto;padding:12px 16px 14px;}
  #kwh-history .ptab__name{font-size:.84rem;white-space:nowrap;}
  #kwh-history .ptab__yr{font-size:.72rem;white-space:nowrap;}
  #kwh-history .phasebar__bar{display:none;}
  #kwh-history .ptab.is-on{background:rgba(223,169,59,.16);}
}
@media (max-width:560px){
  #kwh-history .ph__grid{padding-left:34px;}
  #kwh-history .ph__stack{border-radius:14px;}
}