@font-face {
  font-family: 'LINE Seed KR';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/line-seed-kr-400.woff2') format('woff2');
}

@font-face {
  font-family: 'LINE Seed KR';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('/fonts/line-seed-kr-700.woff2') format('woff2');
}

:root {
  --bg: #eef0f4;
  --surface: #ffffff;
  --surface-2: #f5f6f9;
  --line: #e9ecf1;
  --ink: #14161c;
  --ink-2: #4a505e;
  --ink-3: #666c7a;
  --cta: #14161c;
  --cta-hover: #2b2f3a;
  --on-cta: #ffffff;
  --accent: #5f6bf6;
  --accent-wash: #e9ebfe;
  --a1: #f4cdc4;
  --a2: #f6e4d2;
  --a3: #cfd8ef;
  --a4: #ddd9f0;
  --haze: rgba(255, 255, 255, 0.82);
  --bar: rgba(255, 255, 255, 0.78);
  --hero: #14161c;
  --hero-ink: #f5f7fa;
  --hero-muted: #a8b0bf;
  --hero-chip: rgba(255, 255, 255, 0.1);
  --lift: 0 18px 40px -18px rgba(20, 22, 28, 0.28);
  --footer-bg: #0b0d11;
  --footer-ink: #ffffff;
  --footer-ink-2: rgba(255, 255, 255, 0.62);
  --font: 'LINE Seed KR', 'LINE Seed Sans KR', -apple-system, BlinkMacSystemFont, 'Apple SD Gothic Neo', 'Noto Sans KR', 'Segoe UI', sans-serif;
  --fs-display: clamp(2.4rem, 1.4rem + 4.1vw, 4.5rem);
  --fs-h2: clamp(1.85rem, 1.3rem + 2.3vw, 3rem);
  --fs-h3: clamp(1.25rem, 1.1rem + 0.7vw, 1.6rem);
  --fs-lead: clamp(1.05rem, 0.98rem + 0.3vw, 1.2rem);
  --fs-small: 0.875rem;
  --r-lg: 24px;
  --r-xl: 32px;
  --gutter: 20px;
  --max: 1160px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1116;
    --surface: #171b22;
    --surface-2: #131720;
    --line: #232834;
    --ink: #f0f2f6;
    --ink-2: #a8b0bf;
    --ink-3: #878f9c;
    --cta: #f0f2f6;
    --cta-hover: #ffffff;
    --on-cta: #0e1116;
    --accent: #8b94ff;
    --accent-wash: #232848;
    --a1: #3b2224;
    --a2: #33291f;
    --a3: #1c2742;
    --a4: #29243f;
    --haze: rgba(14, 17, 22, 0.6);
    --bar: rgba(23, 27, 34, 0.72);
    --hero: #171b22;
    --lift: 0 18px 40px -18px rgba(0, 0, 0, 0.6);
    color-scheme: dark;
  }
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
  word-break: keep-all;
  overflow-wrap: break-word;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
}

h1, h2, h3, p {
  margin: 0;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 100;
  background: var(--cta);
  color: var(--on-cta);
  padding: 10px 14px;
  border-radius: 10px;
  text-decoration: none;
}

.skip-link:focus {
  top: 12px;
}

.wrap {
  width: 100%;
  max-width: calc(var(--max) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 52px;
  padding-inline: 24px;
  border-radius: 14px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.01em;
  white-space: nowrap;
  text-decoration: none;
  transition: background-color 150ms ease, transform 150ms ease;
}

.btn:active {
  transform: scale(0.98);
}

.btn svg {
  width: 18px;
  height: 18px;
}

.btn-primary {
  background: var(--cta);
  color: var(--on-cta);
}

.btn-primary:hover {
  background: var(--cta-hover);
}

.btn-secondary {
  background: var(--surface);
  color: var(--ink);
  box-shadow: inset 0 0 0 1px var(--line);
}

.btn-small {
  height: 38px;
  padding-inline: 14px;
  border-radius: 11px;
  font-size: 14px;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  padding-top: calc(env(safe-area-inset-top, 0px) + 12px);
}

.header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 60px;
  padding: 0 10px 0 18px;
  border-radius: 18px;
  background: var(--bar);
  -webkit-backdrop-filter: saturate(160%) blur(16px);
  backdrop-filter: saturate(160%) blur(16px);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.5) inset, 0 10px 30px -18px rgba(20, 22, 28, 0.35);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand svg {
  width: 26px;
  height: 26px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav a {
  padding: 8px 12px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink-2);
  text-decoration: none;
}

.nav a:hover,
.nav a[aria-current='page'] {
  color: var(--ink);
  background: rgba(127, 135, 150, 0.12);
}

.nav .btn {
  margin-left: 6px;
  color: var(--on-cta);
}

.nav .btn:hover {
  color: var(--on-cta);
  background: var(--cta-hover);
}

.nav .optional {
  display: none;
}

@media (min-width: 760px) {
  .nav .optional {
    display: inline-flex;
  }
}

.hero,
.page-hero {
  position: relative;
  isolation: isolate;
  padding-top: calc(env(safe-area-inset-top, 0px) + 150px);
  overflow: hidden;
}

.page-hero {
  padding-bottom: 56px;
}

.aurora {
  position: absolute;
  inset: 0 0 18% 0;
  z-index: -2;
  overflow: hidden;
}

.aurora::before {
  content: '';
  position: absolute;
  inset: -25% -15%;
  background:
    radial-gradient(38% 32% at 16% 30%, var(--a1), transparent 72%),
    radial-gradient(34% 30% at 84% 20%, var(--a3), transparent 72%),
    radial-gradient(42% 34% at 58% 64%, var(--a2), transparent 72%),
    radial-gradient(30% 28% at 8% 80%, var(--a4), transparent 72%),
    radial-gradient(28% 26% at 92% 72%, var(--a1), transparent 72%);
  animation: drift 26s ease-in-out infinite alternate;
  will-change: transform;
}

.aurora::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(62% 22% at 50% 34%, var(--haze), transparent 75%),
    linear-gradient(to bottom, transparent 55%, var(--bg) 100%);
}

@keyframes drift {
  0% {
    transform: translate3d(-3%, -2%, 0) scale(1);
  }

  50% {
    transform: translate3d(2%, 1%, 0) scale(1.06);
  }

  100% {
    transform: translate3d(4%, -1%, 0) scale(1.02);
  }
}

@media (prefers-reduced-motion: reduce) {
  .aurora::before {
    animation: none;
  }

  html {
    scroll-behavior: auto;
  }
}

.hero-copy,
.page-hero-copy {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: var(--fs-small);
  font-weight: 700;
  color: var(--ink-2);
}

.eyebrow i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.hero h1,
.page-hero h1 {
  font-size: var(--fs-display);
  font-weight: 400;
  line-height: 1.24;
  letter-spacing: -0.035em;
}

.hero h1 b,
.page-hero h1 {
  font-weight: 700;
}

.hero h1 span {
  display: block;
}

.lead {
  max-width: 34em;
  font-size: var(--fs-lead);
  line-height: 1.7;
  color: var(--ink-2);
}

.lead b {
  font-weight: 700;
  color: var(--ink);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 8px;
}

.hero-media {
  position: relative;
  margin-top: 64px;
}

.stage {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-xl);
  padding: clamp(28px, 6vw, 72px) clamp(16px, 5vw, 64px);
  background:
    radial-gradient(70% 60% at 20% 15%, var(--a3), transparent 70%),
    radial-gradient(60% 55% at 85% 80%, var(--a1), transparent 70%),
    radial-gradient(50% 45% at 60% 40%, var(--a2), transparent 70%),
    var(--surface-2);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.6);
}

.bars {
  display: grid;
  gap: clamp(20px, 4vw, 40px);
  max-width: 900px;
  margin-inline: auto;
}

.bar-row {
  display: grid;
  gap: 10px;
}

.chip {
  justify-self: start;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.8);
  color: #4a505e;
  font-size: 13px;
  font-weight: 700;
}

.bar-row img {
  width: 100%;
  border-radius: 12px;
  box-shadow: var(--lift);
}

.float {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px 14px 14px;
  border-radius: 16px;
  background: var(--surface);
  box-shadow: var(--lift);
}

.float-icon {
  width: 40px;
  height: 40px;
  border-radius: 11px;
  display: grid;
  place-items: center;
  background: var(--accent-wash);
  color: var(--accent);
  flex-shrink: 0;
}

.float-icon svg {
  width: 20px;
  height: 20px;
}

.float small {
  display: block;
  font-size: 12px;
  color: var(--ink-3);
}

.float strong {
  display: block;
  font-size: 18px;
  letter-spacing: -0.02em;
}

.float-hero {
  right: clamp(12px, 4vw, 48px);
  top: 18px;
}

@media (max-width: 640px) {
  .float-hero {
    position: static;
    margin: 0 auto 18px;
    width: max-content;
  }
}

.statement {
  padding-block: clamp(72px, 10vw, 120px) clamp(56px, 8vw, 96px);
  text-align: center;
}

.statement p {
  max-width: 30em;
  margin-inline: auto;
  font-size: var(--fs-h3);
  line-height: 1.6;
  color: var(--ink-3);
  letter-spacing: -0.025em;
}

.statement b {
  color: var(--ink);
}

.statement em {
  font-style: normal;
  font-weight: 700;
  color: var(--accent);
}

.dark {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-xl);
  background: var(--hero);
  color: var(--hero-ink);
  padding: clamp(40px, 7vw, 88px) clamp(24px, 6vw, 72px) 0;
  display: grid;
  gap: 36px;
}

.dark::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(50% 60% at 90% 0%, rgba(95, 107, 246, 0.35), transparent 70%),
    radial-gradient(40% 50% at 0% 100%, rgba(244, 205, 196, 0.16), transparent 70%);
  pointer-events: none;
}

.dark > * {
  position: relative;
}

.dark h2 {
  font-size: var(--fs-h2);
  font-weight: 400;
  line-height: 1.3;
  letter-spacing: -0.03em;
}

.dark h2 b {
  font-weight: 700;
}

.dark p {
  color: var(--hero-muted);
  max-width: 34em;
}

.pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pills span {
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--hero-chip);
  font-size: 14px;
  font-weight: 700;
}

.dark-shot {
  justify-self: center;
  width: min(100%, 520px);
  margin-bottom: -6%;
}

.section {
  padding-block: clamp(72px, 10vw, 120px) 0;
}

.section-head {
  display: grid;
  gap: 14px;
  margin-bottom: 36px;
}

.section-head h2 {
  font-size: var(--fs-h2);
  font-weight: 400;
  line-height: 1.3;
  letter-spacing: -0.03em;
}

.section-head h2 b {
  font-weight: 700;
}

.section-head p {
  color: var(--ink-2);
  max-width: 34em;
}

.grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
  border-radius: var(--r-lg);
  background: var(--surface-2);
  padding: 26px 24px;
  display: grid;
  gap: 12px;
  align-content: start;
  box-shadow: inset 0 0 0 1px var(--line);
}

.card .float-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
}

.card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.card p {
  color: var(--ink-2);
  font-size: 15px;
}

.how {
  display: grid;
  gap: 28px;
  align-items: center;
}

@media (min-width: 900px) {
  .how {
    grid-template-columns: 1fr 1fr;
  }
}

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
  counter-reset: step;
}

.steps li {
  counter-increment: step;
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 14px;
  align-items: start;
  padding: 18px 20px;
  border-radius: 18px;
  background: var(--surface);
  box-shadow: inset 0 0 0 1px var(--line);
}

.steps li::before {
  content: counter(step);
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: var(--cta);
  color: var(--on-cta);
  font-weight: 700;
}

.steps strong {
  display: block;
  margin-bottom: 2px;
}

.steps span {
  color: var(--ink-2);
  font-size: 15px;
}

.how-shot {
  border-radius: var(--r-lg);
  padding: clamp(16px, 4vw, 36px);
  background:
    radial-gradient(55% 50% at 25% 30%, var(--a1), transparent 75%),
    radial-gradient(50% 45% at 80% 75%, var(--a2), transparent 75%),
    radial-gradient(45% 40% at 85% 15%, var(--a3), transparent 75%),
    var(--surface-2);
}

.faq {
  display: grid;
  gap: 10px;
}

.faq details {
  border-radius: 18px;
  background: var(--surface);
  box-shadow: inset 0 0 0 1px var(--line);
  padding: 4px 20px;
}

.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 16px 28px 16px 0;
  font-weight: 700;
  position: relative;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: '';
  position: absolute;
  right: 4px;
  top: 50%;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--ink-3);
  border-bottom: 2px solid var(--ink-3);
  transform: translateY(-70%) rotate(45deg);
  transition: transform 150ms ease;
}

.faq details[open] summary::after {
  transform: translateY(-30%) rotate(-135deg);
}

.faq details p {
  color: var(--ink-2);
  padding-bottom: 18px;
}

.cta-band {
  margin-top: clamp(72px, 10vw, 120px);
  border-radius: var(--r-xl);
  padding: clamp(40px, 7vw, 72px) 24px;
  text-align: center;
  display: grid;
  justify-items: center;
  gap: 18px;
  background:
    radial-gradient(60% 70% at 15% 20%, var(--a3), transparent 72%),
    radial-gradient(55% 70% at 85% 80%, var(--a1), transparent 72%),
    var(--surface-2);
}

.cta-band h2 {
  font-size: var(--fs-h2);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 1.3;
}

.cta-band h2 b {
  font-weight: 700;
}

.doc {
  max-width: 760px;
  margin-inline: auto;
  padding-bottom: 24px;
}

.doc h2 {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 36px 0 10px;
  letter-spacing: -0.02em;
}

.doc p,
.doc li {
  color: var(--ink-2);
}

.doc ul {
  padding-left: 1.2em;
}

.meta {
  color: var(--ink-3);
  font-size: var(--fs-small);
}

.note {
  margin-top: 20px;
  padding: 18px 20px;
  border-radius: 18px;
  background: var(--surface);
  box-shadow: inset 0 0 0 1px var(--line);
}

.note p {
  color: var(--ink);
}

.lang-divider {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 64px 0 28px;
  color: var(--ink-3);
  font-size: var(--fs-small);
  font-weight: 700;
}

.lang-divider::before,
.lang-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--line);
}

.site-footer {
  margin-top: clamp(72px, 10vw, 120px);
  background: var(--footer-bg);
  color: var(--footer-ink);
  padding: 48px 0 calc(env(safe-area-inset-bottom, 0px) + 40px);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.site-footer .brand {
  color: var(--footer-ink);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 14px;
}

.footer-nav a {
  color: var(--footer-ink-2);
  text-decoration: none;
}

.footer-nav a:hover {
  color: var(--footer-ink);
}

.copyright {
  width: 100%;
  color: var(--footer-ink-2);
  font-size: 13px;
}