:root {
  --ink: #071520;
  --ink-soft: #102431;
  --paper: #f5f3ee;
  --white: #ffffff;
  --gold: #c7a668;
  --gold-bright: #dcc28e;
  --line: rgba(7, 21, 32, 0.16);
  --line-dark: rgba(255, 255, 255, 0.16);
  --text-soft: #5c686f;
  --shell: min(1180px, calc(100vw - 48px));
  --sans: "Manrope", "Noto Sans KR", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  word-break: keep-all;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
img { display: block; max-width: 100%; }
.shell { width: var(--shell); margin-inline: auto; }
.section { padding: 132px 0; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: fixed; z-index: 200; top: 12px; left: 12px; padding: 10px 16px;
  color: var(--ink); background: var(--gold-bright); transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 3px solid var(--gold-bright); outline-offset: 4px; }

.site-header {
  position: fixed; z-index: 100; inset: 0 0 auto; display: flex; align-items: center;
  justify-content: space-between; height: 82px; padding: 0 max(24px, calc((100vw - 1180px) / 2));
  color: var(--white); border-bottom: 1px solid var(--line-dark);
  transition: background-color .35s ease, height .35s ease, box-shadow .35s ease;
}
.site-header.scrolled {
  height: 72px; background: rgba(7, 21, 32, .93); box-shadow: 0 8px 35px rgba(0,0,0,.12);
  backdrop-filter: blur(16px);
}
.brand { display: flex; align-items: center; gap: 11px; min-height: 44px; }
.brand-mark {
  width: 39px; height: 42px; flex: 0 0 auto;
  background-image: url("./assets/ycl-invest-logo-transparent.png");
  background-repeat: no-repeat; background-size: 112px 74.667px; background-position: -37px -8px;
  filter: invert(1) brightness(1.25) contrast(1.7);
}
.brand-copy { display: grid; line-height: 1.15; }
.brand-copy strong { font-size: .76rem; letter-spacing: .12em; }
.brand-copy span { margin-top: 3px; color: rgba(255,255,255,.58); font-size: .66rem; letter-spacing: .035em; }
.site-nav { display: flex; align-items: center; gap: 32px; font-size: .83rem; font-weight: 600; letter-spacing: .02em; }
.site-nav a { position: relative; padding-block: 12px; }
.site-nav a:not(.nav-contact)::after {
  content: ""; position: absolute; right: 0; bottom: 7px; left: 0; height: 1px;
  background: var(--gold-bright); transform: scaleX(0); transform-origin: right; transition: transform .25s ease;
}
.site-nav a:hover::after, .site-nav a:focus-visible::after { transform: scaleX(1); transform-origin: left; }
.nav-contact { padding: 10px 17px !important; border: 1px solid rgba(255,255,255,.42); }
.nav-contact:hover { color: var(--ink); background: var(--gold-bright); border-color: var(--gold-bright); }
.menu-button { display: none; }

.hero {
  position: relative; display: grid; align-items: center; min-height: 820px; height: 100svh;
  overflow: hidden; color: var(--white); background:
    radial-gradient(circle at 75% 50%, rgba(29, 61, 75, .7), transparent 34%),
    linear-gradient(115deg, #06131d 0%, #0a1a25 56%, #0b1f2a 100%);
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .18;
  background-image: linear-gradient(rgba(255,255,255,.08) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px);
  background-size: 76px 76px;
  mask-image: linear-gradient(90deg, transparent 3%, black 55%, transparent 100%);
}
.hero-copy { position: relative; z-index: 2; padding-top: 80px; }
.eyebrow, .section-index, .card-kicker {
  margin: 0 0 30px; font-size: .76rem; font-weight: 700; letter-spacing: .17em;
}
.eyebrow { color: var(--gold-bright); }
.hero h1 {
  max-width: 900px; margin: 0; font-size: clamp(3.3rem, 6.1vw, 6.3rem); font-weight: 500;
  line-height: 1.08; letter-spacing: -.055em;
}
.hero h1 em { color: var(--gold-bright); font-style: normal; }
.hero-lead { max-width: 620px; margin: 40px 0 0; color: rgba(255,255,255,.74); font-size: 1.06rem; line-height: 1.85; }
.hero-actions { display: flex; align-items: center; gap: 30px; margin-top: 46px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 52px; padding: 12px 23px; font-size: .86rem; font-weight: 700; }
.button-gold { color: var(--ink); background: var(--gold-bright); }
.button-gold:hover { background: var(--white); transform: translateY(-2px); }
.text-link { padding: 12px 0; color: rgba(255,255,255,.82); font-size: .88rem; font-weight: 600; }
.text-link span { display: inline-block; margin-left: 8px; color: var(--gold-bright); transition: transform .2s ease; }
.text-link:hover span { transform: translate(3px, 3px); }
.hero-note {
  position: absolute; z-index: 3; right: max(24px, calc((100vw - 1180px) / 2)); bottom: 54px;
  display: flex; align-items: flex-start; gap: 16px; color: rgba(255,255,255,.6); font-size: .68rem; letter-spacing: .13em; line-height: 1.6;
}
.hero-note span { color: var(--gold-bright); }
.hero-note p { margin: 0; }
.hero-geometry { position: absolute; z-index: 1; top: 50%; right: -2vw; width: min(54vw, 780px); aspect-ratio: 1; transform: translateY(-46%); opacity: .68; }
.orbit { position: absolute; inset: 50%; border: 1px solid rgba(220, 194, 142, .34); border-radius: 50%; transform: translate(-50%, -50%); }
.orbit-one { width: 92%; height: 92%; }
.orbit-two { width: 68%; height: 68%; }
.orbit-three { width: 43%; height: 43%; }
.axis { position: absolute; top: 9%; bottom: 9%; left: 50%; width: 2px; background: linear-gradient(transparent, var(--gold), transparent); transform: rotate(45deg); }

.statement { border-bottom: 1px solid var(--line); }
.section-index { color: #8f7441; }
.statement-grid { display: grid; grid-template-columns: .82fr 1.18fr; gap: 11%; align-items: start; }
.statement h2, .section-head h2, .process h2, .identity h2, .network h2, .contact h2 {
  margin: 0; font-size: clamp(2.4rem, 4.4vw, 4.5rem); font-weight: 500; line-height: 1.13; letter-spacing: -.055em;
}
.statement-copy { max-width: 610px; }
.statement-copy p { margin: 0; color: var(--text-soft); }
.statement-copy p + p { margin-top: 30px; }
.statement-copy .lead-copy { color: var(--ink); font-size: 1.38rem; line-height: 1.7; }

.principles { color: var(--white); background: var(--ink); }
.section-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 64px; margin-bottom: 76px; }
.section-head > p { max-width: 430px; margin: 0 0 8px; color: var(--text-soft); }
.principles .section-head > p { color: rgba(255,255,255,.62); }
.principle-list { border-top: 1px solid var(--line-dark); }
.principle {
  position: relative; display: grid; grid-template-columns: 90px .8fr 1fr 120px; gap: 28px;
  align-items: center; min-height: 180px; border-bottom: 1px solid var(--line-dark); transition: background-color .25s ease;
}
.principle:hover { background: rgba(255,255,255,.025); }
.principle-no { color: var(--gold-bright); font-size: .82rem; }
.principle h3 { margin: 0; font-size: 1.42rem; font-weight: 600; }
.principle p { margin: 0; color: rgba(255,255,255,.58); }
.principle-en { color: rgba(255,255,255,.23); font-size: .68rem; font-weight: 700; letter-spacing: .13em; text-align: right; }

.process { background: #eae8e2; }
.process-grid { display: grid; grid-template-columns: .82fr 1.18fr; gap: 11%; }
.process-intro { position: sticky; top: 118px; align-self: start; }
.process-intro > p:last-child { max-width: 420px; margin: 34px 0 0; color: var(--text-soft); }
.process-steps { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.process-steps li { display: grid; grid-template-columns: 76px 1fr; gap: 16px; padding: 37px 0; border-bottom: 1px solid var(--line); }
.process-steps li > span { color: #9c8050; font-size: .8rem; }
.process-steps strong { display: block; margin-bottom: 8px; font-size: 1.36rem; letter-spacing: -.02em; }
.process-steps p { margin: 0; color: var(--text-soft); }

.scope { background: var(--paper); }
.scope-grid { display: grid; grid-template-columns: 1.15fr 1fr 1fr; border: 1px solid var(--line); }
.scope-card { min-height: 390px; padding: 42px 38px; border-left: 1px solid var(--line); }
.scope-card:first-child { border-left: 0; }
.scope-card h3 { margin: 0 0 20px; font-size: 1.65rem; font-weight: 600; line-height: 1.35; letter-spacing: -.035em; }
.scope-card > p:not(.card-kicker) { margin: 0; color: var(--text-soft); }
.scope-primary { color: var(--white); background: var(--ink-soft); }
.scope-primary > p:not(.card-kicker) { color: rgba(255,255,255,.62); }
.scope-primary .card-kicker { color: var(--gold-bright); }
.scope-primary ul { display: flex; flex-wrap: wrap; gap: 8px; margin: 55px 0 0; padding: 0; list-style: none; }
.scope-primary li { padding: 6px 11px; border: 1px solid rgba(255,255,255,.22); color: rgba(255,255,255,.77); font-size: .75rem; }
.card-kicker { margin-bottom: 70px; color: #997a41; }

.identity { color: var(--white); background: #0d202b; }
.identity-grid { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 10%; }
.identity-art { overflow: hidden; aspect-ratio: 1.35; padding: 16px; background: var(--white); }
.identity-art img { width: 100%; height: 100%; object-fit: contain; }
.identity-copy > p:last-child { max-width: 520px; margin: 36px 0 0; color: rgba(255,255,255,.62); }

.company { background: var(--white); }
.company-facts { margin: 0; border-top: 1px solid var(--line); }
.company-facts > div { display: grid; grid-template-columns: 220px 1fr; padding: 25px 0; border-bottom: 1px solid var(--line); }
.company-facts dt { color: var(--text-soft); font-size: .86rem; }
.company-facts dd { margin: 0; font-size: 1.05rem; font-weight: 500; }
.fact-link { display: inline-block; border-bottom: 1px solid transparent; transition: border-color .2s ease, color .2s ease; }
.fact-link:hover { color: #8b6d35; border-bottom-color: currentColor; }

.network { background: var(--paper); border-top: 1px solid var(--line); }
.network-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 10%; }
.network-intro > p:last-child { max-width: 430px; margin: 34px 0 0; color: var(--text-soft); }
.network-links { border-top: 1px solid var(--line); }
.network-links a { position: relative; display: block; padding: 32px 54px 32px 0; border-bottom: 1px solid var(--line); }
.network-links .network-label { color: #927541; font-size: .67rem; font-weight: 700; letter-spacing: .15em; }
.network-links strong { display: block; margin-top: 8px; font-size: 1.44rem; letter-spacing: -.025em; }
.network-links p { margin: 4px 0 0; color: var(--text-soft); font-size: .88rem; }
.network-links i { position: absolute; top: 50%; right: 5px; color: #927541; font-size: 1.5rem; font-style: normal; transform: translateY(-50%); transition: transform .2s ease; }
.network-links a:hover i { transform: translate(4px, -58%); }
.network-links .network-featured {
  margin-bottom: 16px; padding: 34px 74px 34px 34px; border: 0; background: var(--gold-bright);
  box-shadow: 0 14px 40px rgba(7, 21, 32, .1); transition: transform .25s ease, box-shadow .25s ease;
}
.network-links .network-featured:hover { transform: translateY(-4px); box-shadow: 0 20px 48px rgba(7, 21, 32, .16); }
.network-links .network-featured .network-label { color: rgba(7, 21, 32, .64); }
.network-links .network-featured strong { max-width: 470px; font-size: 1.52rem; }
.network-links .network-featured p { max-width: 490px; color: rgba(7, 21, 32, .7); }
.network-links .network-featured i { right: 30px; color: var(--ink); }
.network-cta {
  display: inline-flex; align-items: center; gap: 9px; margin-top: 28px; padding-bottom: 4px;
  border-bottom: 1px solid rgba(7,21,32,.58); color: var(--ink); font-size: .82rem; font-weight: 700;
}
.network-cta b { font-size: .95rem; font-weight: 500; transition: transform .2s ease; }
.network-featured:hover .network-cta b { transform: translate(3px, -3px); }

.contact { color: var(--white); background: var(--ink); }
.contact-inner { display: grid; justify-items: start; }
.contact h2 { max-width: 850px; }
.contact-philosophy { max-width: 660px; margin: 32px 0 0; color: rgba(255,255,255,.56); font-size: 1rem; }
.contact-channels { display: grid; grid-template-columns: .8fr 1.4fr; width: 100%; margin-top: 52px; border-top: 1px solid var(--line-dark); }
.contact-channels a { display: grid; gap: 7px; min-width: 0; padding: 25px 28px 25px 0; border-bottom: 1px solid var(--line-dark); }
.contact-channels a + a { padding-left: 28px; border-left: 1px solid var(--line-dark); }
.contact-channels span { color: rgba(255,255,255,.46); font-size: .72rem; font-weight: 600; letter-spacing: .08em; }
.contact-channels strong { overflow-wrap: anywhere; color: var(--gold-bright); font-size: clamp(1rem, 1.7vw, 1.35rem); font-weight: 500; transition: color .2s ease; }
.contact-channels a:hover strong { color: var(--white); }
.contact-address { margin: 35px 0 0; color: rgba(255,255,255,.48); font-size: .83rem; }

.site-footer { padding: 48px 0 35px; color: rgba(255,255,255,.65); background: #030b10; }
.footer-top, .footer-bottom { display: flex; justify-content: space-between; gap: 40px; }
.footer-top { align-items: flex-start; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,.1); }
.footer-top strong { color: var(--white); font-size: .88rem; letter-spacing: .12em; }
.footer-top p { margin: 4px 0 0; font-size: .75rem; }
.footer-top > a { padding: 10px 0; color: var(--gold-bright); font-size: .74rem; letter-spacing: .12em; }
.footer-bottom { margin-top: 28px; font-size: .68rem; letter-spacing: .02em; }
.footer-bottom p { margin: 0; }
.disclaimer { max-width: 570px; text-align: right; }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (max-width: 900px) {
  :root { --shell: min(100% - 36px, 720px); }
  .section { padding: 96px 0; }
  .site-header { height: 72px; padding-inline: 18px; }
  .menu-button {
    display: grid; align-content: center; gap: 7px; width: 44px; height: 44px; padding: 9px;
    color: inherit; background: transparent; border: 0; cursor: pointer;
  }
  .menu-button > span:not(.sr-only) { display: block; width: 25px; height: 1px; background: currentColor; transition: transform .25s ease; }
  .menu-button[aria-expanded="true"] > span:nth-child(2) { transform: translateY(4px) rotate(45deg); }
  .menu-button[aria-expanded="true"] > span:nth-child(3) { transform: translateY(-4px) rotate(-45deg); }
  .site-nav {
    position: fixed; inset: 72px 0 0; display: flex; flex-direction: column; align-items: stretch; gap: 0;
    padding: 32px 24px; background: var(--ink); transform: translateX(100%); visibility: hidden;
    transition: transform .3s ease, visibility .3s ease;
  }
  .site-nav.open { transform: translateX(0); visibility: visible; }
  .site-nav a { padding: 18px 0; border-bottom: 1px solid rgba(255,255,255,.1); font-size: 1.1rem; }
  .nav-contact { margin-top: 24px; text-align: center; }
  .hero { min-height: 730px; height: auto; padding: 112px 0 90px; }
  .hero-copy { padding-top: 25px; }
  .hero h1 { font-size: clamp(2.65rem, 10vw, 4.3rem); }
  .hero-lead { max-width: 92%; font-size: .98rem; }
  .hero-geometry { right: -28vw; width: 92vw; opacity: .43; }
  .hero-note { display: none; }
  .statement-grid, .process-grid, .identity-grid, .network-grid { grid-template-columns: 1fr; gap: 58px; }
  .statement-copy { max-width: none; }
  .section-head { display: grid; gap: 30px; margin-bottom: 52px; }
  .section-head > p { max-width: 580px; }
  .principle { grid-template-columns: 50px 1fr; gap: 12px 18px; padding: 28px 0; }
  .principle p { grid-column: 2; }
  .principle-en { display: none; }
  .process-intro { position: static; }
  .scope-grid { grid-template-columns: 1fr; }
  .scope-card { min-height: 0; border-top: 1px solid var(--line); border-left: 0; }
  .scope-card:first-child { border-top: 0; }
  .identity-art { max-width: 620px; }
  .contact-channels { grid-template-columns: 1fr; }
  .contact-channels a + a { padding-left: 0; border-left: 0; }
}

@media (max-width: 560px) {
  :root { --shell: calc(100% - 28px); }
  body { font-size: 15px; }
  .section { padding: 78px 0; }
  .brand-copy span { display: none; }
  .hero { min-height: 690px; padding-bottom: 68px; }
  .hero h1 { font-size: clamp(2.35rem, 12vw, 3.15rem); line-height: 1.13; }
  .hero-lead { margin-top: 28px; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 12px; margin-top: 34px; }
  .button { width: 100%; }
  .statement h2, .section-head h2, .process h2, .identity h2, .network h2, .contact h2 { font-size: 2.35rem; }
  .statement-copy .lead-copy { font-size: 1.14rem; }
  .principle { grid-template-columns: 38px 1fr; }
  .principle h3 { font-size: 1.17rem; }
  .process-steps li { grid-template-columns: 42px 1fr; }
  .scope-card { padding: 32px 26px; }
  .card-kicker { margin-bottom: 42px; }
  .identity-art { aspect-ratio: 1.1; }
  .identity-art img { object-fit: contain; }
  .company-facts > div { grid-template-columns: 1fr; gap: 8px; padding: 21px 0; }
  .network-links .network-featured { padding: 28px 56px 28px 24px; }
  .network-links .network-featured i { right: 22px; }
  .contact h2 { font-size: 2.55rem; }
  .footer-top, .footer-bottom { flex-direction: column; }
  .footer-bottom { gap: 12px; }
  .disclaimer { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}