/* === Split Intro === */
.split-intro {
  position: relative;
  height: calc(var(--split-base, 100vh) + var(--split-open-distance));
  transition: height 0.35s ease;
}

body.split-final .split-intro,
body.split-done .split-intro {
  --split-open-distance: 0 !important;
  height: 100vh !important;
}

.split-pin {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: visible;
  isolation: isolate;
}

.about-under {
  position: absolute;
  inset: 0;
  z-index: 0;
  display: grid;
  place-items: center;
  background: #191B20;
  color: #fff;
  pointer-events: none;
  overflow: hidden;
}

.about-under::after {
  content: "";
  position: absolute;
  inset: 0;
  background: #000;
  opacity: var(--under-dim, 0);
  transition: opacity .25s ease;
  pointer-events: none;
  z-index: 2;
}

.about-under__inner {
  text-align: center;
  opacity: var(--under-reveal);
  transform: translateX(0) scale(var(--under-scale));
  will-change: transform, opacity;
  transition: opacity .36s ease-out, transform .55s cubic-bezier(.22, .61, .36, 1);
  position: relative;
  z-index: 0;
}

.about-under__title {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: flex-end;
  gap: 0.02em;
  margin-right: 100px;
  letter-spacing: -0.04em;
  color: #fff;
}

.about-under__A {
  font-family: 'Tangerine', cursive;
  font-weight: 800;
  font-size: clamp(310px, calc(30vw + 100px), 600px);
  letter-spacing: -0.04em;
  position: relative;
  top: var(--A-y);
  -webkit-text-stroke: var(--A-stroke-width) var(--A-stroke-color);
  text-shadow:
    0 1px var(--A-stroke-color),
    1px 0 var(--A-stroke-color),
    0 -1px var(--A-stroke-color),
    -1px 0 var(--A-stroke-color),
    1px 1px var(--A-stroke-color),
    -1px 1px var(--A-stroke-color),
    1px -1px var(--A-stroke-color),
    -1px -1px var(--A-stroke-color);
}

.about-under__rest {
  font-family: 'Cormorant Garamond', serif;
  font-weight: 700;
  font-size: clamp(260px, calc(20vw + 100px), 500px);
  letter-spacing: -0.04em;
  margin-left: 35px;
}

/* === Hero === */
.wrap {
  padding: 20px 140px 50px 50px;
  position: relative;
  width: 100%;
  height: 100%;
  display: grid;
  place-items: stretch;
  overflow: visible;
  filter: brightness(calc(1 - (var(--split) * .12)));
  transform: scale(calc(1 - (var(--split) * .012)));
  transform-origin: center;
  transition: filter .12s linear, transform .12s linear;
  -webkit-mask:
    linear-gradient(#000 0 0) top / 100% calc(max(0px, 50% - (var(--mouthPx) / 2))) no-repeat,
    linear-gradient(#000 0 0) bottom / 100% calc(max(0px, 50% - (var(--mouthPx) / 2))) no-repeat;
  mask:
    linear-gradient(#000 0 0) top / 100% calc(max(0px, 50% - (var(--mouthPx) / 2))) no-repeat,
    linear-gradient(#000 0 0) bottom / 100% calc(max(0px, 50% - (var(--mouthPx) / 2))) no-repeat;
  z-index: 50;
}

.bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: #fff;
  display: grid;
  place-items: center;
  pointer-events: none;
}

.hero-venn {
  width: min(940px, 88vw);
  height: auto;
}

.venn-label {
  font: 600 46px/1.1 "Cormorant Garamond", serif;
  letter-spacing: -0.02em;
  text-anchor: middle;
  dominant-baseline: middle;
}

/* 첫 화면에서 직무와 실행 범위를 바로 읽을 수 있게 한다. */
.hero-message {
  position: absolute;
  z-index: 20;
  left: clamp(55px, 8vw, 140px);
  top: 48%;
  transform: translateY(-40%);
  width: min(535px, 48vw);
  padding: 26px 30px 28px;
  border-left: 3px solid #176c70;
  background: rgba(255, 255, 255, .90);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  font-family: 'Pretendard', sans-serif;
  transition: opacity .25s ease, visibility .25s ease;
}

.hero-message__eyebrow {
  margin-bottom: 18px;
  color: #176c70;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
}

.hero-message h1 {
  font-size: clamp(26px, 2.6vw, 39px);
  font-weight: 500;
  line-height: 1.36;
  letter-spacing: -.055em;
  word-break: keep-all;
}

.hero-message h1 strong {
  font-weight: 800;
}

.hero-message__summary {
  max-width: 39ch;
  margin-top: 18px;
  color: #3b4548;
  font-size: 15px;
  line-height: 1.65;
  word-break: keep-all;
}

.hero-message__link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-top: 24px;
  padding-bottom: 5px;
  border-bottom: 1px solid currentColor;
  color: #124f52;
  font-size: 15px;
  font-weight: 700;
}

.hero-message__link:hover,
.hero-message__link:focus-visible {
  color: #082e30;
  border-bottom-width: 2px;
  outline: 2px solid #124f52 !important;
  outline-offset: 5px;
}

body.overlay-on .hero-message {
  opacity: 0;
  visibility: hidden;
}

@media (max-width: 900px) {
  .hero-message {
    left: 5vw;
    width: min(500px, 68vw);
  }
}

@media (max-width: 640px) {
  .hero-message {
    left: 20px;
    top: 39%;
    width: calc(100vw - 40px);
    padding: 18px 20px 20px;
  }

  .hero-message__eyebrow {
    margin-bottom: 11px;
    font-size: 10px;
  }

  .hero-message h1 {
    font-size: clamp(23px, 6vw, 31px);
  }

  .hero-message__summary {
    margin-top: 12px;
    font-size: 13px;
    line-height: 1.5;
  }

  .hero-message__link {
    margin-top: 13px;
    font-size: 13px;
  }
}

/* === UI === */
.ui {
  position: relative;
  z-index: 20;
  width: 100%;
  height: 100%;
}

.brand .logo-pre,
.brand .logo-post {
  font-family: 'Cormorant Garamond', serif;
  font-weight: 600;
  font-size: 32px;
  letter-spacing: -0.03em;
  transition: color .25s ease;
}

.brand .logo-m {
  font-family: 'Tangerine', cursive;
  font-weight: 800;
  font-size: 50px;
  letter-spacing: 0em;
  transition: color .25s ease;
}

.brand .tag {
  font-size: 24px;
  letter-spacing: -0.01em;
  margin-top: -10px;
  transition: color .25s ease;
}

.nav {
  margin-top: 50px;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.nav a {
  color: var(--txt);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: color .25s ease;
}

.nav .idx {
  font-family: 'HelveticaNeueLTPro', sans-serif;
  font-weight: 400;
  font-size: 16px;
  letter-spacing: 0em;
}

.nav .lbl {
  font-family: 'HelveticaNeueLTPro', sans-serif;
  font-weight: 400;
  font-size: 16px;
  letter-spacing: 0.03em;
}

.profile {
  position: absolute;
  right: 130px;
  top: 18px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  width: min(380px, 30vw);
  text-align: left;
  letter-spacing: 0;
  font-family: 'HelveticaNeueLTPro', sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.35;
  transition: color .25s ease;
}

.profile-name {
  line-height: 1;
  padding-top: 4px;
}

.profile-name .profile-A {
  font-family: 'Tangerine', cursive;
  font-weight: 900;
  font-size: 19px;
  letter-spacing: -0.01em;
}

.scroll-hint {
  font-family: 'HelveticaNeueLTPro', sans-serif;
  font-weight: 300;
  position: absolute;
  left: 55px;
  bottom: 65px;
  font-size: 16px;
  cursor: pointer;
  border: 0;
  background: transparent;
  color: inherit;
  text-align: left;
  transition: opacity .25s ease, visibility .25s ease;
}

.scroll-word {
  font-weight: 300;
  position: absolute;
  left: 55px;
  bottom: 23px;
  font-size: 24px;
  transition: opacity .25s ease, visibility .25s ease;
}

/* === Work overlay / thumbs === */
.work-overlay {
  position: fixed;
  inset: 0;
  z-index: 12;
  pointer-events: none;
}

.work-layer {
  position: absolute;
  inset: 0;
  overflow: hidden;
  contain: paint;
  transform: translateX(-120%);
  transition: transform 800ms cubic-bezier(.22, .61, .36, 1);
  will-change: transform;
}

.work-layer.is-active {
  transform: translateX(0);
}

.work-bg {
  position: absolute;
  clip-path: inset(0);
  width: 100vw;
  height: 100vh;
  object-fit: cover;
  object-position: center;
  filter: blur(36px) saturate(1.05) brightness(0.96);
  transform: scale(1.12);
}

.work-layer::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(120% 100% at 15% 50%, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, .18) 62%, rgba(0, 0, 0, .30) 100%);
}

.work-fg {
  position: absolute;
  left: clamp(230px, 132.5vw, 333px);
  top: 50%;
  transform: translateY(-50%);
  height: auto;
  width: auto;
  max-height: 72vh;
  border-radius: 10px;
  object-fit: contain;
}

.thumbs {
  position: absolute;
  right: 90px;
  bottom: 20px;
  display: flex;
  gap: 14px;
  align-items: flex-end;
  transition: opacity .25s ease, visibility .25s ease;
}

.thumb-item {
  display: flex;
  flex-direction: column;
  align-items: left;
  gap: 6px;
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  text-align: left;
  cursor: pointer;
}

.thumb-cap {
  font-size: clamp(14px, 1.2vw, 16px);
  color: #000;
  letter-spacing: 1;
}

.thumb {
  width: 130px;
  height: 150px;
  position: relative;
  overflow: hidden;
  background: #fdfdfd;
  border: 1px solid rgba(0, 0, 0, .16);
  box-shadow: 0 2px 8px rgba(0, 0, 0, .06);
  background-repeat: no-repeat;
  background-position: center;
  background-size: calc(100% + var(--thumb-bleed)) auto;
  border: 1px solid rgba(0, 0, 0, .16);
  transition: border-color .2s ease;
}

.thumb-item:hover .thumb {
  border-color: #fff;
}

.thumb-item:nth-child(1) .thumb {
  background-image: url('../img/fo01.png');
}

.thumb-item:nth-child(2) .thumb {
  background-image: url('../img/fo02.png');
}

.thumb-item:nth-child(3) .thumb {
  background-image: url('../img/fo03.png');
}

.thumb-item:nth-child(4) .thumb {
  background-image: url('../img/fo04.png');
}

.work-titles {
  position: absolute;
  left: 0;
  bottom: calc(100% + 300px);
  z-index: 21;
  pointer-events: none;
  max-width: min(160vw, 760px);
  transition: opacity .25s ease, visibility .25s ease;
}

.work-title {
  width: 300px;
  position: absolute;
  inset: 0 auto auto 0;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity .4s ease, transform .5s cubic-bezier(.22, .61, .36, 1);
  color: #fff;
}

.work-title .title {
  font-family: 'Cormorant Garamond', sans-serif;
  font-weight: 500;
  font-size: clamp(24px, 2.6vw, 40px);
  line-height: 1.18;
  letter-spacing: -0.02em;
}

.work-title.is-active {
  opacity: 1;
  transform: translateX(0);
}

body.overlay-on .ui,
body.overlay-on .ui * {
  color: #fff;
}

body.overlay-on .thumb {
  border-color: rgba(255, 255, 255, .28);
}

body.overlay-on .thumb-item:hover .thumb {
  border-color: #fff;
}

body.overlay-on .scroll-hint,
body.overlay-on .scroll-word {
  opacity: 0;
  visibility: hidden;
}

.mouth-shadow {
  position: absolute;
  left: 0;
  width: 100%;
  height: 36px;
  z-index: 60;
  pointer-events: none;
  opacity: calc(var(--split) * 1);
  filter: blur(0.2px);
}

.mouth-top {
  top: calc(50% - (var(--mouthPx) / 2));
  background: linear-gradient(to bottom, rgba(0, 0, 0, .22), rgba(0, 0, 0, 0));
  border-bottom-left-radius: 18px;
  border-bottom-right-radius: 18px;
}

.mouth-bottom {
  top: calc(50% + (var(--mouthPx) / 2) - 36px);
  background: linear-gradient(to top, rgba(0, 0, 0, .22), rgba(0, 0, 0, 0));
  border-top-left-radius: 18px;
  border-top-right-radius: 18px;
}

@media (max-width:860px) {
  .nav {
    gap: 12px;
  }

  .thumb {
    width: 100px;
    height: 72px;
  }
}

@media (prefers-reduced-motion: reduce) {

  .work-layer,
  .wrap {
    transition: none !important;
  }
}

/* === About 전용 흰색 UI 오버레이 === */
.ui-about {
  position: fixed;
  inset: 0;
  padding: 20px 140px 50px 50px;
  z-index: 220;
  pointer-events: none;
  opacity: 0;
  transition: opacity .25s ease;
  transform: scale(calc(1 - (var(--split) * .012)));
  transform-origin: center;
  filter: brightness(calc(1 - (var(--split) * .12)));
}

.ui-about,
.ui-about * {
  color: #fff !important;
}

body.at-about .ui-about {
  opacity: 1;
}

.ui-about .profile {
  position: fixed;
  right: 130px;
  top: 48px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  width: min(380px, 30vw);
  text-align: left;
  letter-spacing: 0;
  font-family: 'HelveticaNeueLTPro', sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.35;
}

.ui-about .profile-name {
  line-height: 1;
}

.ui-about .profile-name .profile-A {
  font-family: 'Tangerine', cursive;
  font-weight: 900;
  font-size: 19px;
  letter-spacing: -0.01em;
}

.ui .brand {
  position: fixed;
  left: 50px;
  top: 30px;
  z-index: 70;
}

.ui .nav {
  position: fixed;
  left: 50px;
  top: 100px;
  z-index: 70;
}

.ui .profile {
  position: fixed;
  right: 270px;
  top: 54px;
  z-index: 70;
}

.ui-about .brand {
  position: fixed;
  left: 50px;
  top: 30px;
  z-index: 220;
}

.ui-about .nav {
  position: fixed;
  left: 50px;
  top: 95px;
  z-index: 220;
}

.ui-about .profile {
  position: fixed;
  right: 264px;
  top: 48px;
  z-index: 220;
}

body.at-about .ui {
  opacity: 0;
  visibility: hidden;
  transition: opacity .25s ease, visibility .25s ease;
}

/* === NAV INFO 게이지 === */
.nav a {
  position: relative;
  z-index: 0;
  padding: 6px 12px;
  border-radius: 999px;
}

.nav a .idx,
.nav a .lbl {
  position: relative;
  z-index: 1;
}

.nav a[href="#about"]::after,
.ui-about .nav a[href="#about"]::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 999px;
  background: #A7E2FF;
  transform: scaleX(var(--nav-info-p, 0));
  transform-origin: left center;
  transition: transform .15s linear;
  z-index: 0;
  pointer-events: none;
}

.nav a[href="#work"]::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 999px;
  background: #A7E2FF;
  transform: scaleX(var(--nav-work-p, 0));
  transform-origin: left center;
  transition: transform .15s linear;
  z-index: 0;
  pointer-events: none;
}

.nav a[href="#archive"]::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 999px;
  background: #A7E2FF;
  transform: scaleX(var(--nav-archive-p, 0));
  transform-origin: left center;
  transition: transform .15s linear;
  z-index: 0;
  pointer-events: none;
}

.nav a[href="#contact"]::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 999px;
  background: #A7E2FF;
  transform: scaleX(var(--nav-contact-p, 0));
  transform-origin: left center;
  transition: transform .15s linear;
  z-index: 0;
  pointer-events: none;
}

body.at-about .about-under {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  z-index: 60;
  pointer-events: none;
  background: #191B20;
}

body.at-about .about-under__inner {
  opacity: 1 !important;
  transform: translateX(0) scale(var(--under-scale)) !important;
}

body.at-about .mouth-shadow {
  opacity: 0;
}

body.at-about .wrap {
  filter: none;
  transform: none;
  -webkit-mask: none;
  mask: none;
  z-index: 10;
}