@import url("https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&family=Noto+Sans+KR:wght@400;500;600;700;800&display=swap");

:root {
  --ink: #090d20;
  --ink-soft: #151a31;
  --paper: #f6f6f1;
  --white: #ffffff;
  --violet: #863bff;
  --violet-soft: #ede6ff;
  --sky: #47bfff;
  --lime: #bdfb5a;
  --text-muted: #626675;
  --line: #dcdcd5;
  --max: 1280px;
  color: var(--ink);
  background: var(--paper);
  font-family: "Manrope", "Noto Sans KR", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); line-height: 1.65; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
img { display: block; max-width: 100%; }
[data-copy="en"] { display: none; }
html[lang="en"] [data-copy="ko"] { display: none; }
html[lang="en"] [data-copy="en"] { display: inline; }
.container { width: min(calc(100% - 48px), var(--max)); margin-inline: auto; }

.skip-link {
  position: fixed; z-index: 100; top: 12px; left: 12px; padding: 10px 16px;
  color: var(--white); background: var(--violet); transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky; z-index: 50; top: 0; border-bottom: 1px solid rgba(9,13,32,.09);
  background: rgba(246,246,241,.88); backdrop-filter: blur(18px);
}
.header-inner { display: flex; min-height: 72px; align-items: center; gap: 32px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 800; letter-spacing: -.035em; }
.brand-symbol {
  display: grid; width: 32px; height: 32px; place-items: center; border-radius: 10px;
  color: var(--white); background: linear-gradient(145deg,var(--violet),#6330d7); box-shadow: 0 7px 20px #863bff33;
  font-size: .82rem;
}
.main-nav { display: flex; gap: 30px; margin-left: auto; color: #4f5361; font-size: .84rem; font-weight: 700; }
.main-nav a, .footer-links a { transition: color 160ms ease; }
.main-nav a:hover, .main-nav a:focus-visible, .footer-links a:hover, .footer-links a:focus-visible { color: var(--violet); }
.language-switcher {
  display: flex; align-items: center; gap: 7px; padding: 7px 11px; border: 1px solid var(--line);
  border-radius: 999px; color: #a1a3aa; background: var(--white); font-size: .68rem; font-weight: 800;
}
.language-switcher button { padding: 0; border: 0; color: #9a9ca4; background: none; cursor: pointer; }
.language-switcher button[aria-pressed="true"] { color: var(--ink); }

.hero { position: relative; overflow: hidden; color: var(--white); background: var(--ink); }
.hero-inner {
  position: relative; z-index: 2; display: grid; min-height: 720px; grid-template-columns: 1.12fr .88fr;
  align-items: center; gap: clamp(56px,8vw,120px); padding-block: 88px;
}
.hero-glow { position: absolute; border-radius: 50%; filter: blur(1px); pointer-events: none; }
.hero-glow-one {
  width: 540px; height: 540px; right: -150px; top: -220px;
  background: radial-gradient(circle,#863bff55 0,#863bff12 50%,transparent 72%);
}
.hero-glow-two {
  width: 460px; height: 460px; bottom: -300px; left: 24%;
  background: radial-gradient(circle,#47bfff29 0,transparent 68%);
}
.eyebrow {
  display: flex; align-items: center; gap: 11px; margin: 0 0 22px; color: rgba(255,255,255,.62);
  font-size: .72rem; font-weight: 800; letter-spacing: .15em; text-transform: uppercase;
}
.eyebrow::before { width: 26px; height: 2px; background: var(--sky); content: ""; }
.eyebrow.dark { color: var(--violet); }
.eyebrow.dark::before { background: var(--violet); }
h1,h2,h3,p { margin-top: 0; }
h1 {
  max-width: 760px; margin-bottom: 28px; font-size: clamp(3.6rem,7.1vw,6.8rem);
  font-weight: 800; letter-spacing: -.075em; line-height: .94;
}
html[lang="ko"] h1 { font-size: clamp(3.4rem,5vw,5.15rem); line-height: 1.01; }
.hero-description { max-width: 610px; margin-bottom: 38px; color: rgba(255,255,255,.62); font-size: 1.06rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button {
  display: inline-flex; min-height: 52px; align-items: center; justify-content: center; gap: 14px;
  padding: 0 21px; border: 1px solid transparent; border-radius: 13px; font-size: .84rem;
  font-weight: 800; transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}
.button:hover, .button:focus-visible { transform: translateY(-2px); }
.button-light { color: var(--ink); background: var(--white); }
.button-light:hover, .button-light:focus-visible { background: var(--violet-soft); }
.button-quiet { border-color: rgba(255,255,255,.18); color: var(--white); background: rgba(255,255,255,.04); }
.button-quiet:hover, .button-quiet:focus-visible { border-color: rgba(255,255,255,.38); }

.hero-visual {
  overflow: hidden; border: 1px solid rgba(255,255,255,.14); border-radius: 30px;
  background: rgba(255,255,255,.055); box-shadow: 0 30px 80px rgba(0,0,0,.28); backdrop-filter: blur(14px);
}
.visual-topline, .visual-caption {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  padding: 20px 22px; font-size: .61rem; font-weight: 800; letter-spacing: .12em;
}
.visual-topline { border-bottom: 1px solid rgba(255,255,255,.1); color: rgba(255,255,255,.52); }
.live-dot { display: flex; align-items: center; gap: 7px; color: rgba(255,255,255,.7); }
.live-dot i, .app-status i { width: 7px; height: 7px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 12px #bdfb5a99; }
.visual-stage {
  position: relative; display: grid; min-height: 390px; place-items: center; overflow: hidden;
  background: radial-gradient(circle at 50% 52%,#863bff3d,transparent 38%), linear-gradient(150deg,#11172d,#0b1025);
}
.visual-stage::before {
  position: absolute; inset: 0; opacity: .16; content: "";
  background-image: linear-gradient(rgba(255,255,255,.12) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.12) 1px,transparent 1px);
  background-size: 34px 34px;
}
.stage-ring { position: absolute; border: 1px solid rgba(255,255,255,.11); border-radius: 50%; }
.ring-one { width: 300px; height: 300px; }
.ring-two { width: 220px; height: 220px; border-color: rgba(71,191,255,.22); }
.stage-tile { position: absolute; width: 60px; height: 60px; border: 1px solid rgba(255,255,255,.22); border-radius: 17px; backdrop-filter: blur(8px); }
.tile-a { top: 66px; left: 58px; background: #47bfff26; transform: rotate(-12deg); }
.tile-b { right: 54px; bottom: 62px; background: #863bff33; transform: rotate(10deg); }
.tile-c { right: 60px; top: 50px; width: 34px; height: 34px; border-radius: 10px; background: #ffb35f35; transform: rotate(20deg); }
.app-brand-icon {
  position: relative; z-index: 2; width: 132px; height: 132px; border: 1px solid rgba(255,255,255,.22);
  border-radius: 32px; object-fit: cover; box-shadow: 0 28px 60px rgba(0,0,0,.48);
}
.visual-caption { min-height: 86px; border-top: 1px solid rgba(255,255,255,.1); }
.visual-caption div { display: flex; flex-direction: column; gap: 3px; }
.visual-caption small { color: var(--sky); font-size: .57rem; }
.visual-caption strong { font-size: 1rem; letter-spacing: -.025em; }
.visual-caption > span { color: rgba(255,255,255,.42); }

.section { padding-block: 118px; }
.section-intro { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 46px; }
.section-intro h2, .principles-heading h2, .support-content h2 {
  margin-bottom: 0; font-size: clamp(2.6rem,5.3vw,5.4rem); font-weight: 800;
  letter-spacing: -.068em; line-height: .97;
}
.section-note { max-width: 300px; margin-bottom: 4px; color: var(--text-muted); font-size: .86rem; text-align: right; }
.app-list {
  display: grid; grid-auto-flow: column; grid-auto-columns: 100%; gap: 24px; overflow-x: auto;
  padding: 8px 8px 30px; margin-inline: -8px; scroll-behavior: smooth;
  scroll-snap-type: x mandatory; scroll-padding-inline: 8px; overscroll-behavior-x: contain;
  scrollbar-width: none; touch-action: pan-x pan-y;
}
.app-list::-webkit-scrollbar { display: none; }
.app-card {
  display: grid; grid-template-columns: .72fr 1.28fr; overflow: hidden; border: 1px solid var(--line);
  border-radius: 28px; background: var(--white); box-shadow: 0 18px 60px rgba(9,13,32,.07);
  scroll-snap-align: start; scroll-snap-stop: always;
}
.app-card-visual {
  position: relative; display: grid; min-height: 480px; place-items: center; overflow: hidden;
  background: linear-gradient(145deg,#11162e,#090d20);
}
.app-card-visual::before {
  position: absolute; width: 390px; height: 390px; border: 1px solid rgba(134,59,255,.35);
  border-radius: 50%; content: ""; box-shadow: 0 0 80px #863bff28 inset;
}
.app-number { position: absolute; top: 24px; left: 26px; color: rgba(255,255,255,.45); font-size: .68rem; font-weight: 800; letter-spacing: .12em; }
.app-icon-wrap {
  position: relative; z-index: 2; padding: 12px; border: 1px solid rgba(255,255,255,.12);
  border-radius: 29px; background: rgba(255,255,255,.06); box-shadow: 0 22px 54px rgba(0,0,0,.42);
}
.app-icon-wrap img { width: 112px; height: 112px; border-radius: 22px; object-fit: cover; }
.app-status {
  position: absolute; right: 24px; bottom: 22px; display: flex; align-items: center; gap: 7px;
  color: rgba(255,255,255,.68); font-size: .63rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase;
}
.app-content { display: flex; flex-direction: column; justify-content: center; padding: clamp(38px,6vw,74px); }
.app-category { margin-bottom: 13px; color: var(--violet); font-size: .68rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.app-content h3 { margin-bottom: 19px; font-size: clamp(2.3rem,4vw,4.2rem); letter-spacing: -.065em; line-height: 1; }
.app-summary { max-width: 610px; margin-bottom: 30px; color: var(--text-muted); }
.app-primary-link {
  display: inline-flex; width: fit-content; min-height: 50px; align-items: center; gap: 12px; padding: 0 18px;
  border-radius: 12px; color: var(--white); background: var(--violet); font-size: .79rem; font-weight: 800;
  transition: transform 160ms ease, background 160ms ease;
}
.app-primary-link:hover, .app-primary-link:focus-visible { background: #7126ec; transform: translateY(-2px); }
.app-policy-links { display: flex; flex-wrap: wrap; gap: 10px 18px; margin-top: 38px; padding-top: 22px; border-top: 1px solid var(--line); font-size: .7rem; }
.policy-label { width: 100%; color: #a0a2a9; font-weight: 800; letter-spacing: .11em; text-transform: uppercase; }
.app-policy-links a { color: #545866; font-weight: 700; text-decoration: underline; text-decoration-color: #c9cad0; text-underline-offset: 4px; }
.app-policy-links a:hover, .app-policy-links a:focus-visible { color: var(--violet); text-decoration-color: var(--violet); }

.link-shift-visual {
  background: linear-gradient(145deg,#18233b,#0c1428);
}
.link-shift-visual::before {
  width: 330px; height: 330px; border: 0; border-radius: 28px; box-shadow: none; opacity: .42;
  background-image: linear-gradient(rgba(71,191,255,.24) 1px,transparent 1px),linear-gradient(90deg,rgba(71,191,255,.24) 1px,transparent 1px);
  background-size: 54px 54px;
}
.link-shift-icon {
  position: relative; z-index: 2; display: grid; grid-template-columns: 78px 68px 78px;
  align-items: center;
}
.link-shift-icon span {
  display: grid; width: 78px; height: 78px; place-items: center; border: 1px solid rgba(255,255,255,.36);
  border-radius: 20px; color: var(--white); background: linear-gradient(145deg,#843cff,#5d2ad0);
  box-shadow: 0 18px 40px rgba(0,0,0,.32); font-size: 1.45rem; font-weight: 800;
}
.link-shift-icon i { position: relative; height: 2px; background: var(--sky); box-shadow: 0 0 14px #47bfff99; }
.link-shift-icon i::before,.link-shift-icon i::after {
  position: absolute; top: 50%; width: 7px; height: 7px; border-radius: 50%;
  background: var(--sky); content: ""; transform: translateY(-50%);
}
.link-shift-icon i::before { left: -1px; }
.link-shift-icon i::after { right: -1px; }
.development-status i,.development-pulse { background: #ffb35f; box-shadow: 0 0 12px #ffb35f88; }
.development-note {
  display: inline-flex; width: fit-content; align-items: center; gap: 10px; margin-top: 7px;
  padding: 12px 14px; border: 1px solid #dedee3; border-radius: 11px; color: #606472;
  background: #f7f7f4; font-size: .73rem; font-weight: 700;
}
.development-pulse { width: 8px; height: 8px; flex: 0 0 auto; border-radius: 50%; }
.carousel-pagination { display: flex; min-height: 34px; align-items: center; justify-content: center; gap: 9px; }
.carousel-dot {
  width: 9px; height: 9px; padding: 0; border: 0; border-radius: 999px; background: #c4c4be;
  cursor: pointer; transition: width 180ms ease,background 180ms ease,transform 180ms ease;
}
.carousel-dot:hover,.carousel-dot:focus-visible { background: #9d82c9; transform: scale(1.08); }
.carousel-dot[aria-current="true"] { width: 28px; background: var(--violet); }

.principles-section { border-top: 1px solid var(--line); background: #efefe9; }
.principles-grid { display: grid; grid-template-columns: .83fr 1.17fr; gap: clamp(60px,10vw,140px); align-items: start; }
.principles-heading { position: static; }
.principles-heading h2 { font-size: clamp(2.6rem,4.25vw,4.45rem); }
.principle-list { border-top: 1px solid #cfd0c8; }
.principle-list article { display: grid; grid-template-columns: 46px 1fr; gap: 22px; padding-block: 34px; border-bottom: 1px solid #cfd0c8; }
.principle-list article > span { padding-top: 3px; color: var(--violet); font-size: .68rem; font-weight: 800; }
.principle-list h3 { margin-bottom: 8px; font-size: 1.22rem; letter-spacing: -.025em; }
.principle-list p { margin-bottom: 0; color: var(--text-muted); font-size: .87rem; }

.support-section { position: relative; overflow: hidden; color: var(--white); background: var(--ink); }
.support-section::after {
  position: absolute; width: 520px; height: 520px; right: -180px; bottom: -330px;
  border-radius: 50%; background: radial-gradient(circle,#863bff66,transparent 68%); content: "";
}
.support-inner { position: relative; z-index: 2; padding-block: 108px; }
.support-content { display: grid; grid-template-columns: 1fr .9fr; align-items: end; gap: clamp(50px,9vw,130px); }
.support-action p { margin-bottom: 28px; color: rgba(255,255,255,.58); font-size: .9rem; }
.support-action a { display: grid; grid-template-columns: 1fr auto; align-items: end; gap: 7px 20px; padding: 20px 0; border-top: 1px solid rgba(255,255,255,.22); border-bottom: 1px solid rgba(255,255,255,.22); }
.support-action small { grid-column: 1/-1; color: var(--sky); font-size: .62rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.support-action strong { overflow-wrap: anywhere; font-size: clamp(1.2rem,2.5vw,1.85rem); letter-spacing: -.045em; }
.support-action a:hover, .support-action a:focus-visible { color: var(--violet-soft); }

.site-footer { border-top: 1px solid rgba(255,255,255,.1); color: rgba(255,255,255,.65); background: var(--ink); }
.footer-inner { display: grid; min-height: 150px; grid-template-columns: 1fr auto auto; align-items: center; gap: 50px; }
.footer-brand { color: var(--white); }
.footer-inner p { margin: 0; font-size: .68rem; }
.footer-links { display: flex; gap: 20px; font-size: .72rem; font-weight: 700; }
:focus-visible { outline: 3px solid var(--sky); outline-offset: 4px; }

@media (max-width: 920px) {
  .hero-inner { grid-template-columns: 1fr; padding-block: 76px; }
  .hero-visual { width: min(100%,580px); }
  .principles-grid, .support-content { grid-template-columns: 1fr; }
  .principles-heading { position: static; }
}

@media (min-width: 721px) {
  .hero h1 [data-copy="ko"],.principles-heading h2 [data-copy="ko"] { white-space: nowrap; }
}

@media (max-width: 720px) {
  .container { width: min(calc(100% - 30px),var(--max)); }
  .header-inner { min-height: 66px; }
  .main-nav { display: none; }
  .hero-inner { min-height: auto; gap: 56px; padding-block: 64px 70px; }
  h1 { font-size: clamp(3.15rem,14vw,5rem); }
  html[lang="ko"] h1 { font-size: clamp(3rem,12.5vw,4.15rem); }
  .hero-description { font-size: .95rem; }
  .visual-stage { min-height: 330px; }
  .visual-caption > span { display: none; }
  .section { padding-block: 82px; }
  .section-intro { align-items: start; flex-direction: column; }
  .section-note { text-align: left; }
  .app-card { grid-template-columns: 1fr; }
  .app-card-visual { min-height: 330px; }
  .app-content { padding: 34px 25px 38px; }
  .app-policy-links { gap: 12px 16px; }
  .link-shift-icon { grid-template-columns: 68px 54px 68px; }
  .link-shift-icon span { width: 68px; height: 68px; }
  .support-inner { padding-block: 82px; }
  .footer-inner { grid-template-columns: 1fr; gap: 20px; padding-block: 42px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,*::before,*::after { transition-duration: .01ms !important; }
}