/* =====================================================================
   main.css — 메인 갤러리(액자식 포트폴리오) 전용 스타일
   shared/theme.css 의 무채색 토큰 위에서 동작.
   ===================================================================== */

html { scroll-behavior: smooth; }
body {
  min-height: 100%;
  overflow-x: hidden;
}

/* 은은한 청사진 그리드 — 갤러리 벽 질감 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(18, 19, 22, .04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(18, 19, 22, .04) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(120% 100% at 50% 0%, #000 30%, transparent 95%);
  -webkit-mask-image: radial-gradient(120% 100% at 50% 0%, #000 30%, transparent 95%);
}

/* 커서를 따라다니는 무채색 스포트라이트 */
.spotlight {
  position: fixed;
  width: 540px;
  height: 540px;
  left: 0; top: 0;
  border-radius: 50%;
  pointer-events: none;
  z-index: 1;
  transform: translate3d(-50%, -50%, 0);
  background: radial-gradient(circle, rgba(18, 19, 22, .07) 0%, rgba(18, 19, 22, 0) 65%);
  opacity: 0;
  transition: opacity .4s ease;
  will-change: transform;
}
.spotlight.is-on { opacity: 1; }

/* 스크롤 진행 바 */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0%;
  background: var(--accent);
  z-index: 200;
}

main, header, footer { position: relative; z-index: 2; }

/* ===================== 상단바 ===================== */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px clamp(18px, 4vw, 54px);
  background: rgba(250, 250, 250, .72);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-soft);
}
.site-nav__brand {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  text-decoration: none;
  color: var(--brand);
}
.site-nav__mark {
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: 1px;
  text-transform: uppercase;
}
.site-nav__sub {
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .35px;
  color: var(--text-mute);
}
.site-nav__links { display: flex; align-items: center; gap: 6px; }
.site-nav__links a {
  text-decoration: none;
  color: var(--text-dim);
  font-size: .82rem;
  font-weight: 600;
  padding: .42rem .9rem;
  border-radius: var(--r-pill);
  transition: background .2s ease, color .2s ease;
}
.site-nav__links a:hover { background: var(--fill-mid); color: var(--brand); }
.site-nav__links a.is-cta { background: var(--accent); color: var(--accent-contrast); }
.site-nav__links a.is-cta:hover { background: var(--accent-strong); }
@media (max-width: 640px) {
  .site-nav__links a:not(.is-cta) { display: none; }
}

/* ===================== 히어로 ===================== */
.hero {
  position: relative;
  min-height: 92vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 80px 20px 40px;
  overflow: hidden;
}
#heroCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: .9;
}
.hero__inner {
  position: relative;
  z-index: 2;
  max-width: 960px;
  pointer-events: none;
}
.hero__eyebrow {
  display: inline-block;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--text-mute);
  padding: .4rem 1rem;
  border: 1px solid var(--border-mid);
  border-radius: var(--r-pill);
  background: var(--glass);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.hero__title {
  font-family: var(--font-display);
  text-transform: uppercase;
  color: var(--brand);
  margin: .35em 0 .12em;
  line-height: .92;
  letter-spacing: 1px;
  font-size: clamp(2.6rem, 11vw, 8.2rem);
}
.hero__title .ln { display: block; overflow: hidden; }
.hero__title .ln > span {
  display: inline-block;
  transform: translateY(110%);
  animation: rise .9s cubic-bezier(.2, .9, .25, 1) forwards;
}
.hero__title .ln:nth-child(2) > span { animation-delay: .12s; }
@keyframes rise { to { transform: translateY(0); } }
.hero__lead {
  max-width: 620px;
  margin: 1.1rem auto 0;
  color: var(--text-dim);
  font-size: clamp(.95rem, 1.6vw, 1.15rem);
  line-height: 1.7;
  opacity: 0;
  animation: fade .9s ease .55s forwards;
}
.hero__cta {
  margin-top: 1.8rem;
  display: inline-flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  pointer-events: auto;
  opacity: 0;
  animation: fade .9s ease .75s forwards;
}
.hero__btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: .92rem;
  padding: .8rem 1.5rem;
  border-radius: var(--r-pill);
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--accent-contrast);
  transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
}
.hero__btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-1); }
.hero__btn--ghost { background: transparent; color: var(--brand); }
.hero__btn--ghost:hover { background: var(--fill-mid); }
@keyframes fade { to { opacity: 1; } }

.scroll-cue {
  position: absolute;
  bottom: 22px; left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  font-size: .72rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-mute);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
}
.scroll-cue .dot {
  width: 22px; height: 36px;
  border: 1.5px solid var(--border-mid);
  border-radius: 12px;
  position: relative;
}
.scroll-cue .dot::after {
  content: ""; position: absolute; left: 50%; top: 7px;
  width: 3px; height: 7px; border-radius: 3px; background: var(--text-mute);
  transform: translateX(-50%);
  animation: scrolldot 1.6s ease-in-out infinite;
}
@keyframes scrolldot { 0%,100% { opacity: 0; transform: translate(-50%, 0); } 40% { opacity: 1; } 80% { opacity: 0; transform: translate(-50%, 12px); } }

/* ===================== 마키 띠 ===================== */
.marquee {
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
  background: var(--accent);
  color: var(--accent-contrast);
  overflow: hidden;
  white-space: nowrap;
  padding: 12px 0;
}
.marquee__track {
  display: inline-flex;
  gap: 2.5rem;
  padding-left: 2.5rem;
  animation: marquee 26s linear infinite;
  font-family: var(--font-display);
  letter-spacing: 1px;
  text-transform: uppercase;
  font-size: 1rem;
}
.marquee__track span { opacity: .92; }
.marquee__track span::after { content: "✶"; margin-left: 2.5rem; opacity: .5; }
.marquee:hover .marquee__track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ===================== 갤러리 ===================== */
.gallery {
  max-width: 1240px;
  margin: 0 auto;
  padding: clamp(60px, 9vw, 130px) clamp(18px, 4vw, 40px);
}
.gallery__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: clamp(36px, 6vw, 70px);
  flex-wrap: wrap;
}
.gallery__head h2 {
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: clamp(2rem, 6vw, 4rem);
  line-height: .95;
  margin: 0;
  color: var(--brand);
}
.gallery__head p { margin: .4rem 0 0; color: var(--text-mute); max-width: 420px; font-size: .95rem; line-height: 1.6; }
.gallery__count {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 7vw, 4.6rem);
  color: var(--fill-strong);
  line-height: 1;
}

.wall {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(34px, 6vw, 86px) clamp(34px, 5vw, 70px);
}
@media (max-width: 760px) { .wall { grid-template-columns: 1fr; } }

/* 액자(프레임) */
.frame {
  --tiltX: 0deg; --tiltY: 0deg;
  display: block;
  text-decoration: none;
  color: inherit;
  perspective: 1100px;
  opacity: 0;
  transform: translateY(40px);
  transition: opacity .7s cubic-bezier(.2,.8,.2,1), transform .7s cubic-bezier(.2,.8,.2,1);
}
.frame.is-in { opacity: 1; transform: translateY(0); }
/* 갤러리 벽 — 액자를 서로 다른 높이로 걸기 */
@media (min-width: 761px) {
  .frame:nth-child(odd)  { margin-top: 0; }
  .frame:nth-child(even) { margin-top: clamp(40px, 7vw, 96px); }
}

.frame__mat {
  position: relative;
  background: linear-gradient(160deg, #ffffff 0%, #f0f0f1 100%);
  padding: clamp(14px, 2.2vw, 24px);
  border: clamp(9px, 1.3vw, 14px) solid #202126;
  border-radius: 5px;
  box-shadow:
    0 0 0 1px rgba(18,19,22,.55),
    0 1px 0 rgba(255,255,255,.5) inset,
    0 34px 60px -28px rgba(18,19,22,.6);
  transform: rotateX(var(--tiltX)) rotateY(var(--tiltY));
  transform-style: preserve-3d;
  transition: box-shadow .35s ease, transform .12s ease;
}
.frame:hover .frame__mat {
  box-shadow:
    0 0 0 1px rgba(18,19,22,.6),
    0 1px 0 rgba(255,255,255,.5) inset,
    0 48px 80px -30px rgba(18,19,22,.65);
}

/* 작품(아트) 영역 */
.frame__art {
  position: relative;
  aspect-ratio: 4 / 3;
  border: 1px solid rgba(18,19,22,.18);
  overflow: hidden;
  background:
    radial-gradient(120% 120% at 50% 8%, #fbfbfc 0%, #e7e8ea 100%);
  display: grid;
  place-items: center;
  transform: translateZ(28px);
}
.frame__art::after { /* 유리 반사 */
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(255,255,255,.55) 0%, rgba(255,255,255,0) 32%);
  opacity: .55;
  pointer-events: none;
  mix-blend-mode: screen;
}
.frame__art svg { width: 78%; height: 78%; display: block; }
/* 라인아트 드로잉 */
.frame__art .ink {
  fill: none;
  stroke: #20242b;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}
.frame__art .ink--thin { stroke-width: 1; opacity: .5; }
.frame__art .fillsoft { fill: rgba(18,19,22,.06); stroke: none; }
.frame:hover .frame__art .draw {
  stroke-dasharray: var(--len, 1200);
  stroke-dashoffset: var(--len, 1200);
  animation: draw 1.5s ease forwards;
}
@keyframes draw { to { stroke-dashoffset: 0; } }

.frame__tag {
  position: absolute;
  top: 10px; left: 10px;
  z-index: 3;
  font-size: .64rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: .28rem .6rem;
  border-radius: var(--r-pill);
  background: rgba(255,255,255,.85);
  border: 1px solid var(--border-mid);
  color: var(--text-dim);
}

/* 명판(plaque) */
.plaque {
  margin: 18px auto 0;
  max-width: 88%;
  text-align: center;
  padding: 14px 18px;
  background: var(--glass-solid);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-md);
  box-shadow: 0 14px 30px -22px rgba(18,19,22,.5);
  transform: translateY(-26px);
  transition: transform .35s ease, box-shadow .35s ease;
}
.frame:hover .plaque { transform: translateY(-34px); box-shadow: 0 22px 40px -22px rgba(18,19,22,.55); }
.plaque__no {
  font-family: var(--font-display);
  font-size: .82rem;
  letter-spacing: 2px;
  color: var(--text-mute);
}
.plaque__title {
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: clamp(1.15rem, 2.4vw, 1.7rem);
  margin: .12rem 0 .3rem;
  color: var(--brand);
  letter-spacing: .5px;
}
.plaque__desc { margin: 0; font-size: .86rem; line-height: 1.55; color: var(--text-dim); }
.plaque__meta {
  margin-top: .55rem;
  display: flex; gap: 8px; justify-content: center; flex-wrap: wrap;
}
.plaque__meta span {
  font-size: .68rem; font-weight: 600; letter-spacing: .3px;
  padding: .2rem .55rem; border-radius: var(--r-pill);
  background: var(--fill-soft); border: 1px solid var(--border-soft); color: var(--text-mute);
}
.plaque__cta {
  display: inline-block;
  margin-top: .8rem;
  font-size: .82rem;
  font-weight: 700;
  color: var(--brand);
  letter-spacing: .3px;
}
.plaque__cta::after { content: " →"; transition: margin .2s ease; display: inline-block; }
.frame:hover .plaque__cta::after { margin-left: 6px; }

/* ===================== 안내(About) ===================== */
.about {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 clamp(18px, 4vw, 40px) clamp(60px, 9vw, 120px);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 22px;
}
.about__card {
  padding: 26px 24px;
  border-radius: var(--r-lg);
  background: var(--glass-solid);
  border: 1px solid var(--border-soft);
  box-shadow: 0 18px 40px -30px rgba(18,19,22,.5);
}
.about__card .n {
  font-family: var(--font-display);
  font-size: 2.4rem;
  line-height: 1;
  color: var(--brand);
}
.about__card h4 { margin: .5rem 0 .35rem; font-size: 1rem; color: var(--brand); }
.about__card p { margin: 0; font-size: .86rem; line-height: 1.6; color: var(--text-dim); }

/* ===================== 푸터 ===================== */
.site-footer {
  border-top: 1px solid var(--border-soft);
  background: var(--bg-2);
  padding: 40px clamp(18px, 4vw, 54px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  color: var(--text-mute);
  font-size: .84rem;
}
.site-footer a { color: var(--text-dim); text-decoration: none; font-weight: 600; }
.site-footer a:hover { color: var(--brand); }

/* ===================== 모션 최소화 ===================== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  html { scroll-behavior: auto; }
  .frame { opacity: 1; transform: none; }
}