:root {
  color-scheme: light;
  --indigo: #5B67C8;
  --indigo-dark: #4652AF;
  --cream: #FCFAF7;
  --text: #20252D;
  --muted: #626878;
  --line: #E8E5E0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans KR", "Malgun Gothic", sans-serif;
  color: var(--text);
  background: var(--cream);
  font-synthesis: none;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body { margin: 0; line-height: 1.7; word-break: keep-all; overflow-wrap: break-word; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a:focus-visible, button:focus-visible { outline: 3px solid var(--indigo-dark); outline-offset: 5px; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { letter-spacing: -.055em; }
[hidden] { display: none !important; }
.container { width: min(1120px, calc(100% - 80px)); margin-inline: auto; }
.icon-definitions { position: absolute; width: 0; height: 0; overflow: hidden; }
.icon { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }
.feature-icon { width: 34px; height: 34px; fill: none; stroke: var(--indigo); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.skip-link { position: fixed; top: -80px; left: 16px; padding: 10px 18px; z-index: 20; background: white; border-radius: 10px; }
.skip-link:focus { top: 12px; }
.site-header { border-bottom: 1px solid var(--line); }
.header-inner { height: 94px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; min-height: 44px; gap: 10px; font-size: 23px; font-weight: 750; letter-spacing: -.06em; }
.brand img { border-radius: 10px; }
.header-nav { display: flex; gap: 32px; margin-left: auto; margin-right: 22px; font-size: 14px; font-weight: 600; }
.header-nav a { display: inline-flex; align-items: center; min-height: 44px; }
.header-nav a, .footer-links a { transition: color .18s; }
.header-nav a:hover, .footer-links a:hover { color: var(--indigo-dark); }
.header-cta { display: flex; align-items: center; gap: 12px; min-height: 44px; padding: 10px 18px; background: var(--indigo); color: white; border-radius: 100px; font-size: 13px; font-weight: 650; }
.header-cta .icon { width: 18px; height: 18px; }
.header-cta:hover { background: var(--indigo-dark); }
.hero { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 24px; padding-block: 82px 88px; }
.eyebrow { color: var(--indigo-dark); font-size: 13px; font-weight: 700; letter-spacing: -.02em; }
.hero .eyebrow { display: flex; align-items: center; gap: 8px; margin-bottom: 26px; }
.brand-dot { width: 6px; height: 6px; background: var(--indigo); border-radius: 50%; }
h1 { font-size: clamp(42px, 4.7vw, 64px); font-weight: 750; line-height: 1.24; }
h1 span { color: var(--indigo); }
.hero-description { margin-top: 24px; font-size: 16px; color: var(--muted); line-height: 1.85; letter-spacing: -.03em; }
.store-buttons { display: flex; flex-wrap: wrap; gap: 10px; }
.hero .store-buttons { margin-top: 34px; }
.store-button { display: inline-flex; align-items: center; justify-content: center; gap: 9px; min-height: 62px; min-width: 170px; padding: 11px 16px; background: white; border: 1px solid #DAD8E0; border-radius: 14px; transition: transform .18s, box-shadow .18s, background .18s; }
.store-button:hover { transform: translateY(-2px); box-shadow: 0 8px 20px #20252D0C; }
.store-icon { width: 27px; height: 27px; flex-shrink: 0; }
.apple-icon { fill: currentColor; }
.store-label, .store-action { display: block; }
.store-label { font-size: 14px; font-weight: 750; line-height: 1.3; letter-spacing: -.02em; }
.store-action { font-size: 11px; margin-top: 3px; line-height: 1.3; }
.hero .store-button[data-store="ios"] { color: white; background: var(--indigo); border-color: var(--indigo); }
:root[data-platform="android"] .hero .store-button[data-store="ios"] { color: var(--text); background: white; border-color: #DAD8E0; }
.hero .store-button.is-recommended { color: white; background: var(--indigo); border-color: var(--indigo); box-shadow: 0 0 0 3px #5B67C81A; }
.age-notice { display: flex; gap: 7px; align-items: center; margin-top: 18px; color: var(--muted); font-size: 12px; }
.age-notice .icon { width: 16px; height: 16px; color: var(--indigo); }
.hero-visual { min-width: 0; }
.conversation-art { position: relative; margin: 0 -20px; }
.conversation-svg { width: 100%; height: auto; display: block; }
.art-note { position: absolute; font-size: 13px; color: var(--indigo-dark); padding: 10px 18px; background: #FFFFFFD9; box-shadow: 0 6px 28px #3D426608; border: 1px solid #FFFFFF; border-radius: 100px; }
.art-note-top { left: 8%; top: 13%; transform: rotate(-7deg); }
.art-note-bottom { right: 3%; bottom: 22%; transform: rotate(5deg); }
.art-signature { position: absolute; width: 62px; right: 18%; bottom: 2%; transform: rotate(8deg); }
.visual-caption { display: flex; align-items: center; justify-content: center; gap: 10px; margin-top: 12px; font-size: 12px; color: var(--muted); }
.visual-caption span { width: 23px; height: 1px; background: #BDBBD1; }
.about-section { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #F6F3EE; }
.about-inner { padding-block: 64px; display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
h2 { font-size: clamp(28px, 3vw, 39px); font-weight: 720; line-height: 1.4; }
.about-inner h2 { margin-top: 14px; }
.about-copy { font-size: 15px; color: var(--muted); }
.about-copy p + p { margin-top: 12px; }
.text-link { display: inline-flex; gap: 10px; align-items: center; color: var(--indigo-dark); font-size: 13px; font-weight: 700; min-height: 44px; margin-top: 14px; }
.text-link .icon { width: 18px; height: 18px; transition: transform .18s; }
.text-link:hover .icon { transform: translateX(3px); }
.section { padding-block: 94px; }
.section-heading { margin-bottom: 36px; }
.section-heading h2 { margin-top: 12px; }
.section-description { color: var(--muted); font-size: 15px; margin-top: 12px; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.step-card { position: relative; border: 1px solid var(--line); border-radius: 22px; background: white; padding: 30px; min-height: 244px; }
.step-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 34px; }
.step-number { color: var(--indigo); font-size: 14px; font-weight: 700; letter-spacing: .03em; }
h3 { font-size: 21px; font-weight: 720; line-height: 1.4; }
.step-card p { margin-top: 12px; font-size: 14px; color: var(--muted); }
.step-arrow { position: absolute; right: -21px; top: 106px; width: 22px; height: 32px; z-index: 1; display: flex; align-items: center; justify-content: center; color: #9C9CB4; background: var(--cream); }
.step-arrow .icon { width: 18px; height: 18px; }
.usage-note { color: var(--muted); font-size: 12px; margin-top: 20px; }
.features-section { background: #F1F0F7; }
.feature-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; }
.feature-card { grid-column: span 2; padding: 30px; border: 1px solid #FFFFFF; border-radius: 22px; background: #FCFAF7; min-width: 0; }
.feature-card h3 { margin-top: 22px; }
.feature-card p { margin-top: 12px; font-size: 14px; color: var(--muted); }
.feature-wide { position: relative; grid-column: span 3; display: flex; align-items: center; justify-content: space-between; gap: 16px; overflow: hidden; min-height: 252px; }
.moment-art { position: relative; width: 132px; height: 160px; flex-shrink: 0; }
.moment-art span { position: absolute; width: 94px; height: 126px; border-radius: 18px; background: #DDDFEF; border: 4px solid #FFFFFF; transform: rotate(-13deg); top: 4px; left: 0; }
.moment-art span + span { background: linear-gradient(145deg, #AAB1E6, #6D79CF); transform: rotate(12deg); left: 28px; top: 24px; box-shadow: 0 12px 22px #5B67C824; }
.moment-art .icon { position: absolute; width: 36px; height: 36px; left: 62px; top: 74px; color: #FFFFFF; transform: rotate(12deg); }
.question-art { position: relative; width: 120px; height: 142px; flex-shrink: 0; }
.question-art span:first-child { position: absolute; inset: 8px 4px 12px; display: grid; place-items: center; border-radius: 35px 35px 35px 6px; background: #EBE4D8; color: var(--indigo); font-size: 56px; font-weight: 600; transform: rotate(10deg); }
.question-art span + span { position: absolute; width: 28px; height: 28px; background: #ACB3E2; border: 5px solid var(--cream); border-radius: 50%; left: -6px; bottom: 8px; }
.download-section { padding-block: 90px; }
.download-card { position: relative; display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 36px; padding: 56px; overflow: hidden; border-radius: 30px; background: var(--indigo); color: #FFFFFF; }
.download-card::before { content: ""; position: absolute; width: 420px; height: 420px; border: 1px solid #FFFFFF1F; border-radius: 50%; right: -180px; top: -210px; pointer-events: none; }
.download-card .eyebrow { color: #FFFFFF; opacity: .85; }
.download-card h2 { margin-top: 14px; font-size: 37px; }
.download-copy > p:not(.eyebrow) { margin-top: 18px; font-size: 14px; }
.download-copy .download-age { font-size: 12px; }
.download-actions { justify-self: end; }
.download-actions .store-button { min-width: 165px; color: var(--text); border-color: #FFFFFF; }
.download-actions .store-button.is-recommended { outline: 2px solid #FFFFFF; outline-offset: 5px; }
.download-actions a:focus-visible { outline-color: #FFFFFF; }
.platform-note { font-size: 12px; margin-top: 18px; text-align: center; }
.site-footer { border-top: 1px solid var(--line); padding-block: 44px 28px; background: #F6F3EE; }
.footer-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 24px; }
.footer-tagline { margin-top: 12px; color: var(--muted); font-size: 13px; }
.support-link { font-size: 12px; color: var(--muted); min-height: 44px; }
.support-link > span { display: flex; align-items: center; gap: 20px; font-size: 15px; font-weight: 700; margin-top: 8px; color: var(--text); }
.support-link .icon { width: 20px; height: 20px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 2px 24px; font-size: 12px; color: var(--muted); margin-block: 26px 18px; }
.footer-links a { display: inline-flex; align-items: center; min-height: 44px; }
.footer-bottom { display: flex; flex-wrap: wrap; gap: 12px 24px; padding-top: 22px; border-top: 1px solid var(--line); font-size: 11px; color: var(--muted); align-items: center; }
.footer-bottom a { min-height: 44px; display: inline-flex; align-items: center; }
.footer-bottom span:last-child { margin-left: auto; }
.install-banner { position: fixed; z-index: 10; left: 50%; bottom: max(14px, env(safe-area-inset-bottom)); transform: translateX(-50%); width: min(600px, calc(100% - 24px)); display: flex; align-items: center; gap: 12px; padding: 14px; color: white; background: #4652AF; border: 1px solid #FFFFFF4D; border-radius: 20px; box-shadow: 0 8px 36px #20252D30; }
.install-banner > img { border-radius: 12px; flex-shrink: 0; }
.install-copy { min-width: 0; flex: 1; }
.install-copy strong { display: block; font-size: 14px; line-height: 1.4; }
.install-copy span { display: block; font-size: 11px; margin-top: 3px; }
.install-link { display: inline-flex; justify-content: center; align-items: center; min-height: 44px; padding: 8px 16px; border-radius: 12px; background: white; color: var(--indigo-dark); font-size: 13px; font-weight: 750; flex-shrink: 0; }
.install-close { display: grid; place-items: center; padding: 0; min-width: 44px; min-height: 44px; border: none; border-radius: 12px; background: transparent; color: white; cursor: pointer; flex-shrink: 0; }
.install-close:hover { background: #FFFFFF1F; }
.install-banner a:focus-visible, .install-banner button:focus-visible { outline-color: white; outline-offset: 2px; }
:root[data-platform="android"] body { display: flex; flex-direction: column; height: 100vh; height: 100dvh; padding-bottom: 0; overflow: hidden; }
:root[data-platform="android"] .page-content { flex: 1; min-height: 0; overflow-y: auto; scroll-behavior: smooth; scroll-padding-block: 16px; }
:root[data-platform="android"] .install-banner { position: static; flex-shrink: 0; transform: none; margin: 12px auto max(14px, env(safe-area-inset-bottom)); }
@media (max-width: 1050px) {
  .container { width: calc(100% - 56px); }
  .hero { gap: 0; padding-block: 64px; }
  .store-button { min-width: 150px; padding-inline: 12px; }
  .download-card { padding: 40px; }
  .download-actions .store-buttons { flex-direction: column; }
  .download-actions .store-button { min-width: 190px; }
  .feature-wide { padding: 26px; }
  .moment-art { width: 108px; transform: scale(.9); transform-origin: right center; }
  .question-art { width: 100px; }
}
@media (max-width: 767px) {
  .container { width: calc(100% - 40px); }
  .header-inner { height: 76px; gap: 12px; }
  .brand { font-size: 21px; gap: 8px; }
  .header-nav { display: none; }
  .header-cta { font-size: 12px; padding-inline: 14px; gap: 8px; }
  .hero { grid-template-columns: 1fr; padding-block: 48px 44px; gap: 22px; }
  .hero .eyebrow { margin-bottom: 22px; }
  h1 { font-size: clamp(39px, 8vw, 54px); }
  .hero-description { font-size: 15px; margin-top: 20px; }
  .hero .store-buttons { margin-top: 26px; }
  .hero .store-button { flex: 1; max-width: 205px; min-width: 0; }
  .hero-visual { width: min(440px, 100%); justify-self: center; }
  .conversation-art { margin: 0 -8px; }
  .art-note { font-size: 11px; padding: 8px 13px; }
  .art-signature { width: 48px; }
  .visual-caption { font-size: 11px; margin-top: 6px; }
  .about-inner { grid-template-columns: 1fr; gap: 26px; padding-block: 44px; }
  h2 { font-size: 29px; }
  .about-copy { font-size: 14px; }
  .section { padding-block: 60px; }
  .section-heading { margin-bottom: 26px; }
  .section-description { font-size: 14px; }
  .steps { grid-template-columns: 1fr; gap: 14px; }
  .step-card { padding: 24px; min-height: 0; }
  .step-top { margin-bottom: 14px; }
  .step-arrow { display: none; }
  .step-card p { margin-top: 8px; }
  .step-card br { display: none; }
  .feature-grid { grid-template-columns: 1fr; gap: 14px; }
  .feature-card, .feature-wide { grid-column: auto; padding: 26px; }
  .feature-wide { min-height: 218px; }
  .feature-card h3 { margin-top: 14px; }
  .feature-card p { margin-top: 8px; }
  .download-section { padding-block: 56px; }
  .download-card { grid-template-columns: 1fr; padding: 32px 24px; border-radius: 24px; gap: 30px; }
  .download-card h2 { font-size: 32px; }
  .download-actions { justify-self: stretch; }
  .download-actions .store-buttons { flex-direction: row; }
  .download-actions .store-button { flex: 1; min-width: 0; }
  .site-footer { padding-top: 32px; }
  .footer-top { gap: 18px; }
  .support-link { font-size: 11px; }
  .support-link > span { font-size: 14px; }
  .footer-links { column-gap: 20px; }
  .footer-bottom { gap: 4px 16px; }
  .footer-bottom span:last-child { margin-left: 0; flex-basis: 100%; }
}
@media (max-width: 359px) {
  .container { width: calc(100% - 32px); }
  .store-button { gap: 6px; padding-inline: 9px; }
  .store-label { font-size: 12px; }
  .store-icon { width: 23px; height: 23px; }
  .hero-description .desktop-break { display: none; }
  .download-card { padding-inline: 18px; }
  .feature-wide { padding-inline: 20px; gap: 0; }
  .moment-art { width: 88px; transform: scale(.72); }
  .question-art { width: 85px; transform: scale(.85); }
  .install-banner { gap: 7px; padding: 10px; }
  .install-banner > img { display: none; }
  .install-copy strong { font-size: 12px; }
  .install-link { padding-inline: 12px; }
}
@media (prefers-reduced-motion: reduce) {
  html, :root[data-platform="android"] .page-content { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
  .store-button:hover, .text-link:hover .icon { transform: none; }
}