/* timeline.css — 타임라인 데스크탑 2컬럼 grid 레이아웃 (plan.md Phase 2) */
/* 구조 변경 (2026-04-16): per-year-block 3컬럼 flex → per-section 2컬럼 grid */

/* ── 섹션 공통 ── */
.timeline-section {
  position: relative;
  margin: 0 auto;
}

/* ── timeline-wrap: 2컬럼 grid ── */
.timeline-wrap {
  position: relative;
  padding: 160px clamp(24px, 5vw, 100px);
  padding-bottom: 0;
  max-width: var(--content-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

/* ── timeline-left: 섹션당 1개 ── */
.timeline-left {
  height: fit-content;
  will-change: transform;
}

.year-label {
  font-family: var(--font-nanum);
  font-size: 90px;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 8px;
}

.year-assets {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 16px;
  width: 200px;
}

/* 기본: year-assets 내 모든 assets-wrap 숨김 */
.year-assets > .assets-wrap {
  opacity: 0;
  transition: opacity 0.3s;
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: none;
}

/* 활성화된 자산만 표시 */
.year-assets > .assets-wrap.active {
  opacity: 1;
  position: relative;
  pointer-events: auto;
}

/* ── timeline-right: 세로선 + 카드 ── */
.timeline-right {
  position: relative;
  padding-left: 80px;  /* 세로선(24px) + 도넛↔카드 여백(28px) */
  overflow: visible;    /* pin 활성 시 카드 노출 허용, JS에서 비활성 섹션에만 hidden 토글 */
}

/* 슬라이드쇼용 카드 트랙 (JS에서 생성, translateY로 슬라이드) */
.cards-track {
  position: relative;
  will-change: transform;
  min-height: 100%;
}

/* 세로 타임라인 라인: cards-track의 ::before */
.cards-track::before {
  content: '';
  position: absolute;
  left: -72px;  /* 52px(padding-left) - 12px(line position) = 40px */
  top: 0;
  bottom: 0;
  width: 2px;
  background: repeating-linear-gradient(
    to bottom,
    var(--grey-cb) 0px, var(--grey-cb) 4px,
    transparent 4px, transparent 8px
  );
}

/* 그라데이션 채움선 (JS로 height 제어) — cards-track 내부 */
.timeline-line-fill {
  position: absolute;
  left: -72px;  /* cards-track::before와 동일 위치 */
  top: 0;
  width: 2px;
  height: 0;
  background: var(--gradient);
  z-index: 1;
}

/* ── year-group ── */
.year-group {
  display: flex;
  flex-direction: column;
}

/* ── 이벤트 카드 ── */
.event-card {
  position: relative;
  padding-bottom: 200px;
  opacity: 1;
  transition: opacity 0.3s;
}

.event-card.active{
  opacity: 1;
}

.event-row {
  display: flex;
  align-items: flex-start;
  position: relative;
}

.event-donut{
  width: 24px;
  height: 24px;
  position: absolute;
  left: -82px;
  top: 0;
  border-radius: 50%;
  background: var(--grey-cb);
  flex-shrink: 0;
  z-index: 2;
  cursor: pointer;
  transition: all 0.3s ease;
}

/* 도넛: 세로선 위에 absolute 배치 */
.event-donut:hover {
  width: 40px;
  height: 40px;
  left: -91px;
  top: -10px;
}

.event-donut::before {
  content: '클릭하여 이동';
  position: absolute;
  bottom: 0;
  right: 0;
  transform: translateX(-50%);
  border-radius: 80px;
  background: #747474;
  box-shadow: 2px 2px 8px 0 rgba(0, 0, 0, 0.15);
  display: inline-flex;
  padding: 8px 16px;
  pointer-events: none;
  z-index: 10;
  color: #fff;
  font-family: var(--font-nanum);
  font-size: 14px;
  font-weight: 700;
  line-height: 24px;
  letter-spacing: -0.28px;
  white-space: nowrap;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.event-donut:hover::before {
  opacity: 1;
}

.event-donut::after {
  content: '';
  position: absolute;
  inset: 8px;
  border-radius: 50%;
  background: white;
}

.event-donut:hover::after{
  inset: 13px;
}

.event-card.active .event-donut {
  background: var(--gradient);
  pointer-events: none;
}

/* isSpecial 스타일 */
.is-special .event-donut {
  background: white;
  border: 2px dashed var(--orange);
}

.event-card.active.is-special .event-donut {
  background: white;
}

.is-special .event-donut::after {
  background: var(--orange);
}

.is-special .event-month,
.is-special .event-title {
  color: var(--orange);
}

.event-content {
  flex: 1;
  max-width: 552px;
  
}


/* 캐러셀 이벤트: 우측 카드 GSAP pin (overflow 조상 때문에 CSS sticky 불가) */

/* 데스크탑: 카드 내부 자산 숨김 (timeline-left에서 표시) */
.event-content > .assets-wrap { display: none; }

/* .event-content > .carousel-nav: 데스크탑에서 독립 표시 */
.event-content > .carousel-nav {
  margin-top: 0;
}

.event-month {
  font-family: var(--font-pretendard);
  font-size: 16px;
  font-weight: 600;
  color: var(--grey-3);
  display: block;
  margin-bottom: 8px;
}

.event-title {
  font-family: var(--font-nanum);
  font-size: 24px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 12px;
  color: var(--black);
}

.event-body {
  font-family: var(--font-pretendard);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.7;
  color: var(--grey-4);
}

/* ── Odometer ── */
.odometer {
  display: flex;
  overflow: hidden;
  line-height: 1;
}

.odo-digit {
  display: inline-block;
  height: 1em;
  overflow: hidden;
  position: relative;
}

.odo-strip {
  display: flex;
  flex-direction: column;
  transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.odo-num {
  display: block;
  height: 1em;
  line-height: 1;
  text-align: center;
}

/* gradient-text가 year-label에 붙으면, 실제 텍스트가 있는 .odo-num에 gradient 적용 */
.year-label .odo-num {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── 자산 썸네일 ── */
.assets-wrap {
  padding: 24px 0;
}

.asset-thumb {
  position: relative;
  cursor: pointer;
  display: inline-block;
  border-radius: var(--radius-card);
  width: 336px;
  height: auto;
}

.asset-thumb img:not(.icon) {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  border-radius: var(--radius-card);
  border: 1px solid var(--grey-cb);
}

.asset-label {
  display: block;
  font-family: var(--font-pretendard);
  margin-top: 24px;
  white-space: pre-wrap;
  color: #303030;
  font-size: 16px;
  font-style: normal;
  font-weight: 500;
  line-height: 24px; /* 150% */
  letter-spacing: -0.32px;
}

.asset-thumb-inner{
  position: relative;
}

.asset-hover-icon {
  position: absolute;
  bottom: 12px;
  right: 8px;
  color: var(--white);
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 1;
  pointer-events: none;
  background: linear-gradient(90deg, #0A46A5 0%, #00A7AD 100%);
  padding: 8px 16px;
  border-radius: 48px;
  gap: 4px;
  font-weight: 700;
}


/* ── 캐러셀 ── */
.assets-carousel .carousel-track {
  position: relative;
}

.assets-carousel .carousel-track {
  display: grid;
}

.assets-carousel .carousel-slide {
  grid-area: 1 / 1;
  opacity: 0;
  pointer-events: none;
}

.assets-carousel .carousel-slide.active {
  opacity: 1;
  pointer-events: auto;
}

.carousel-nav {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-top: 32px
}

.carousel-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--grey-cb);
  cursor: pointer;
  transition: all 0.3s;
  flex-shrink: 0;
  position: relative;
}

.carousel-dot:hover{
  background: var(--grey-4);
}

.carousel-dot.active {
  width: 48px;
  height: 16px;
  border-radius: 16px;
  background: var(--gradient);
}

.carousel-dot[data-label]::after {
  content: attr(data-label);
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  border-radius: 80px;
  border: 1px solid #E0E6ED;
  background: #FFF;
  box-shadow: 2px 2px 8px 0 rgba(0, 0, 0, 0.15);
  display: inline-flex;
  padding: 8px 16px;
  pointer-events: none;
  z-index: 10;
  color: #636363;
  font-family: var(--font-nanum);
  font-size: 14px;
  font-style: normal;
  font-weight: 700;
  line-height: 24px;
  letter-spacing: -0.28px;
  white-space: nowrap;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.carousel-dot[data-label]:hover::after {
  opacity: 1;
}

/* ── 외부 링크 버튼 (Phase 8-2, Figma node 283:30767) ── */
.event-link-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 24px;
  border: 1px solid #02489D;
  border-radius: 96px;
  background: transparent;
  color: #02489D;
  font-family: 'NanumSquare Neo', sans-serif;
  font-weight: 700;
  font-size: 16px;
  line-height: 1.5em;
  letter-spacing: -0.02em;
  text-decoration: none;
  margin-top: 12px;
  cursor: pointer;
}