:root {
  --ink: #10191c;
  --muted: #677075;
  --cream: #fff9e6;
  --paper: #fffdf8;
  --orange: #ff7f32;
  --orange-soft: #fff0e6;
  --blue: #2e7df4;
  --blue-soft: #dff2ff;
  --yellow: #fbe86f;
  --lilac: #b995b4;
  --green: #dfeacc;
  --line: rgba(16, 25, 28, .13);
  --shadow: 0 28px 70px rgba(36, 47, 50, .14);
  --radius: 30px;
  --shell: min(1180px, calc(100vw - 48px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif; line-height: 1.65; -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.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; top: 8px; left: 8px; z-index: 1000; padding: 10px 14px; color: white; background: var(--ink); transform: translateY(-150%); }
.skip-link:focus { transform: none; }
.content-shell { width: var(--shell); margin-inline: auto; }
.section-pad { padding: 120px 0; }

.site-header { position: fixed; inset: 0 0 auto; z-index: 100; transition: .25s ease; }
.site-header.is-scrolled { background: rgba(255,253,248,.88); border-bottom: 1px solid var(--line); backdrop-filter: blur(18px); }
.nav-shell { width: var(--shell); height: 82px; margin-inline: auto; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-size: 20px; font-weight: 800; letter-spacing: -.03em; }
.brand img { width: 43px; height: 43px; border-radius: 12px; box-shadow: 0 8px 20px rgba(38,112,177,.18); }
.site-nav { display: flex; align-items: center; gap: 31px; font-size: 14px; font-weight: 650; }
.site-nav a { transition: color .2s ease; }
.site-nav a:hover, .site-nav a:focus-visible { color: var(--orange); }
.site-nav .nav-cta { padding: 10px 18px; color: white; background: var(--ink); border-radius: 999px; }
.site-nav .nav-cta:hover { color: white; background: var(--orange); }
.menu-button { display: none; }

.hero { min-height: 860px; padding-top: 154px; overflow: hidden; position: relative; background: linear-gradient(140deg, #fffdf8 0%, #fff9e6 70%, #fff4d5 100%); }
.hero-grid { display: grid; grid-template-columns: 1.03fr .97fr; align-items: center; gap: 45px; }
.hero-copy { position: relative; z-index: 2; padding-bottom: 20px; }
.eyebrow, .section-label { margin: 0 0 20px; color: var(--orange); font-size: 13px; font-weight: 800; letter-spacing: .17em; text-transform: uppercase; }
.eyebrow { display: flex; align-items: center; gap: 9px; }
.eyebrow span { width: 23px; height: 3px; background: var(--orange); border-radius: 999px; }
h1, h2, h3, p { text-wrap: pretty; }
h1 { margin: 0; max-width: 650px; font-size: clamp(58px, 7.4vw, 94px); line-height: .98; letter-spacing: -.075em; font-weight: 820; }
h1 em { color: var(--orange); font-style: normal; }
.hero-lead { max-width: 600px; margin: 31px 0 34px; color: #515b5e; font-size: 19px; line-height: 1.85; }
.hero-actions { display: flex; align-items: center; gap: 29px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 25px; min-height: 54px; padding: 0 25px; border-radius: 999px; font-weight: 750; transition: transform .2s ease, background .2s ease, color .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-dark { color: white; background: var(--ink); }
.button-dark:hover { background: var(--orange); }
.text-link { padding-block: 12px; border-bottom: 1px solid var(--ink); font-weight: 750; }
.proof-row { max-width: 610px; margin-top: 56px; padding-top: 25px; border-top: 1px solid var(--line); display: grid; grid-template-columns: repeat(3, 1fr); gap: 25px; }
.proof-row div { display: flex; flex-direction: column; }
.proof-row strong { font-size: 15px; }
.proof-row span { color: var(--muted); font-size: 12px; }
.hero-visual { position: relative; height: 635px; }
.phone { position: absolute; overflow: hidden; background: white; border: 8px solid var(--ink); border-radius: 43px; box-shadow: var(--shadow); }
.phone img { width: 100%; }
.phone-main { z-index: 3; top: 12px; left: 106px; width: 315px; height: 644px; transform: rotate(2.5deg); }
.phone-side { z-index: 2; top: 97px; left: -25px; width: 244px; height: 498px; opacity: .92; transform: rotate(-10deg); }
.floating-note { position: absolute; z-index: 4; min-width: 125px; padding: 15px 18px; border: 1px solid rgba(16,25,28,.08); border-radius: 20px; box-shadow: 0 18px 45px rgba(30,40,42,.16); display: flex; flex-direction: column; line-height: 1.3; }
.floating-note span { font-size: 21px; font-weight: 800; }
.floating-note small { margin-top: 4px; color: var(--muted); }
.note-korean { right: 1px; top: 245px; background: var(--yellow); transform: rotate(5deg); }
.note-task { right: 28px; bottom: 29px; background: white; transform: rotate(-3deg); }
.note-task span { color: var(--orange); font-size: 13px; letter-spacing: .11em; }
.orbit { position: absolute; border: 1px solid rgba(16,25,28,.1); border-radius: 50%; }
.orbit-one { width: 555px; height: 555px; top: 43px; left: -20px; }
.orbit-two { width: 405px; height: 405px; top: 118px; left: 51px; }
.hero-glow { position: absolute; border-radius: 50%; filter: blur(4px); opacity: .7; }
.hero-glow-one { width: 300px; height: 300px; right: -120px; top: 0; background: var(--blue-soft); }
.hero-glow-two { width: 220px; height: 220px; left: -90px; bottom: 30px; background: #ffe4d2; }

.manifesto { background: white; }
.manifesto-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 110px; align-items: end; }
.manifesto h2, .section-heading h2, .preview-copy h2, .roadmap-grid h2, .faq-grid h2 { margin: 0; font-size: clamp(44px, 5.4vw, 72px); line-height: 1.08; letter-spacing: -.06em; }
.manifesto h2 span { color: var(--blue); }
.manifesto-grid > div { padding-bottom: 2px; }
.manifesto-grid p { margin: 0 0 17px; color: #535e62; font-size: 19px; }

.loop-section { color: white; background: var(--ink); }
.section-label.light { color: var(--yellow); }
.section-heading { display: grid; grid-template-columns: 1fr .65fr; gap: 90px; align-items: end; margin-bottom: 60px; }
.section-heading > p { margin: 0 0 6px; color: #aeb7b9; font-size: 17px; }
.loop-grid { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 15px; }
.loop-card { position: relative; min-height: 345px; padding: 25px; color: var(--ink); background: white; border-radius: 25px; }
.loop-card:nth-child(2) { transform: translateY(28px); }
.loop-card:nth-child(3) { transform: translateY(56px); }
.loop-card:nth-child(4) { transform: translateY(84px); }
.step { color: #939b9e; font-size: 12px; font-weight: 800; letter-spacing: .15em; }
.loop-icon { width: 67px; height: 67px; margin: 42px 0 28px; border-radius: 20px; display: grid; place-items: center; font-size: 27px; font-weight: 900; }
.color-orange { background: var(--orange-soft); color: var(--orange); }
.color-blue { background: var(--blue-soft); color: var(--blue); }
.color-yellow { background: #fff7b8; color: #9b7a00; }
.color-lilac { background: #f0e5ef; color: #74546f; }
.loop-card h3 { margin: 0 0 10px; font-size: 21px; }
.loop-card p { margin: 0; color: var(--muted); font-size: 14px; }

.scenes-section { padding-top: 185px; background: #f4f0ec; }
.section-heading.dark > p { color: #667175; }
.scene-strip { display: grid; grid-template-columns: 1.35fr 1fr 1fr; gap: 18px; }
.scene-card { min-height: 485px; padding: 28px; border-radius: var(--radius); overflow: hidden; position: relative; }
.scene-featured { color: white; background: #536f78; }
.scene-planned { background: white; border: 1px solid var(--line); }
.scene-top { position: relative; z-index: 2; display: flex; justify-content: space-between; gap: 15px; font-size: 11px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.scene-art { height: 225px; position: relative; }
.scene-card h3 { position: relative; margin: 0 0 8px; font-size: 28px; letter-spacing: -.04em; }
.scene-card p { position: relative; margin: 0; max-width: 450px; color: inherit; opacity: .72; font-size: 14px; }
.chips { position: relative; display: flex; gap: 8px; margin-top: 22px; }
.chips span { padding: 6px 10px; border: 1px solid currentColor; border-radius: 999px; font-size: 11px; font-weight: 700; opacity: .8; }
.store-art { width: 290px; margin: 10px auto 5px; background: rgba(255,255,255,.12); border-radius: 80px 80px 5px 5px; transform: scale(.78); transform-origin: center bottom; }
.store-art:before { content: ""; position: absolute; inset: 76px 38px 0; background: #dbe9e3; border-radius: 15px 15px 0 0; }
.store-art .awning { position: absolute; z-index: 2; top: 54px; left: 24px; width: 242px; height: 57px; border-radius: 13px 13px 30px 30px; background: repeating-linear-gradient(90deg,#ff8b46 0 40px,#fff0d6 40px 80px); }
.store-art .door { position: absolute; z-index: 3; bottom: 0; left: 62px; width: 61px; height: 92px; background: #41616b; }
.store-art .window { position: absolute; z-index: 3; bottom: 24px; right: 58px; width: 91px; height: 60px; background: #8bc1cf; }
.cup-art span { position: absolute; width: 150px; height: 145px; left: 50%; top: 45px; transform: translateX(-50%) rotate(-5deg); border-radius: 10px 10px 48px 48px; background: var(--lilac); }
.cup-art span:after { content: ""; position: absolute; width: 55px; height: 65px; right: -40px; top: 24px; border: 15px solid var(--lilac); border-left: 0; border-radius: 0 40px 40px 0; }
.subway-art span { position: absolute; width: 180px; height: 150px; left: 50%; top: 42px; transform: translateX(-50%) rotate(4deg); background: var(--blue-soft); border: 13px solid var(--blue); border-radius: 52px 52px 22px 22px; }
.subway-art span:before, .subway-art span:after { content: ""; position: absolute; bottom: 19px; width: 29px; height: 29px; background: var(--ink); border-radius: 50%; }
.subway-art span:before { left: 25px; }.subway-art span:after { right: 25px; }

.preview-section { background: var(--cream); overflow: hidden; }
.preview-shell { display: grid; grid-template-columns: .85fr 1.15fr; align-items: center; gap: 85px; }
.preview-copy > p:not(.section-label) { margin: 24px 0 36px; color: var(--muted); font-size: 17px; }
.preview-tabs { display: grid; border-top: 1px solid var(--line); }
.preview-tab { width: 100%; padding: 16px 4px; display: flex; gap: 19px; color: #737c7f; background: none; border: 0; border-bottom: 1px solid var(--line); cursor: pointer; text-align: left; font-weight: 700; }
.preview-tab span { font-size: 11px; letter-spacing: .1em; }
.preview-tab.is-active { color: var(--orange); }
.preview-stage { min-height: 695px; padding: 30px 35px 0; background: #c6a5c2; border-radius: 45px; box-shadow: var(--shadow); }
.preview-caption { display: flex; justify-content: space-between; color: #4e344a; font-size: 11px; font-weight: 800; letter-spacing: .12em; }
.preview-phone { width: 350px; height: 672px; margin: 22px auto -53px; overflow: hidden; background: white; border: 8px solid var(--ink); border-radius: 44px 44px 0 0; box-shadow: 0 22px 50px rgba(36,31,35,.22); }
.preview-phone img { width: 100%; }

.roadmap-section { background: white; }
.roadmap-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 100px; }
.roadmap-list { border-top: 1px solid var(--line); }
.roadmap-list > div { display: grid; grid-template-columns: 92px 1fr; column-gap: 24px; padding: 28px 0; border-bottom: 1px solid var(--line); }
.roadmap-list span { grid-row: 1 / span 2; color: var(--orange); font-size: 12px; font-weight: 800; }
.roadmap-list h3 { margin: 0 0 7px; font-size: 22px; }
.roadmap-list p { margin: 0; color: var(--muted); font-size: 14px; }

.faq-section { background: #eef6f6; }
.faq-grid { display: grid; grid-template-columns: .65fr 1.35fr; gap: 100px; }
.faq-grid > div:first-child > p:last-child { color: var(--muted); }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { list-style: none; padding: 25px 0; display: flex; align-items: center; justify-content: space-between; gap: 20px; cursor: pointer; font-size: 18px; font-weight: 750; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span { width: 34px; height: 34px; display: grid; place-items: center; background: white; border-radius: 50%; transition: transform .2s ease; }
.faq-list details[open] summary span { transform: rotate(45deg); }
.faq-list details p { max-width: 690px; margin: -5px 60px 24px 0; color: var(--muted); }

.closing-section { padding: 40px; background: #eef6f6; }
.closing-card { width: min(1260px, calc(100vw - 80px)); padding: 90px 40px; color: white; text-align: center; background: var(--ink); border-radius: 43px; }
.closing-card img { margin: 0 auto 27px; border-radius: 23px; }
.closing-card p { margin: 0 0 18px; color: var(--yellow); font-size: 13px; font-weight: 800; letter-spacing: .08em; }
.closing-card h2 { margin: 0 0 35px; font-size: clamp(42px, 5vw, 68px); line-height: 1.1; letter-spacing: -.055em; }
.button-light { color: var(--ink); background: white; }
.button-light:hover { background: var(--yellow); }

.site-footer { padding: 72px 0 30px; background: #eef6f6; }
.footer-top { display: flex; justify-content: space-between; gap: 60px; padding-bottom: 55px; }
.footer-brand p { margin: 11px 0 0 54px; color: var(--muted); font-size: 13px; }
.footer-links { display: flex; gap: 90px; }
.footer-links > div { min-width: 130px; display: flex; flex-direction: column; gap: 9px; font-size: 13px; }
.footer-links strong { margin-bottom: 7px; }
.footer-links a, .footer-links span { color: var(--muted); }
.footer-links a:hover { color: var(--orange); }
.footer-bottom { padding-top: 22px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 30px; color: var(--muted); font-size: 12px; }
.footer-bottom strong { color: #a65d38; font-weight: 700; }

.legal-page { min-height: 100vh; padding: 150px 0 90px; background: #fffdf8; }
.legal-shell { width: min(800px, calc(100vw - 48px)); margin: 0 auto; }
.legal-shell h1 { font-size: clamp(44px, 7vw, 68px); }
.legal-meta { margin: 22px 0 38px; padding: 14px 18px; color: #704f18; background: #fff2be; border-radius: 14px; font-size: 14px; }
.legal-shell h2 { margin: 38px 0 10px; font-size: 24px; letter-spacing: -.03em; }
.legal-shell p, .legal-shell li { color: #4f5a5e; }
.legal-shell a { color: var(--blue); text-decoration: underline; }
.error-page { min-height: 100vh; display: grid; place-items: center; padding: 40px; background: var(--cream); text-align: center; }
.error-page h1 { font-size: clamp(72px, 15vw, 160px); color: var(--orange); }
.error-page p { color: var(--muted); font-size: 18px; }

.reveal { opacity: 1; transform: none; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .reveal { opacity: 1; transform: none; transition: none; } .button { transition: none; } }

@media (max-width: 980px) {
  :root { --shell: min(100% - 36px, 760px); }
  .section-pad { padding: 88px 0; }
  .menu-button { display: grid; width: 44px; height: 44px; place-content: center; gap: 6px; background: white; border: 1px solid var(--line); border-radius: 50%; }
  .menu-button span:not(.sr-only) { width: 18px; height: 2px; background: var(--ink); }
  .site-nav { position: fixed; inset: 74px 18px auto; padding: 25px; background: white; border: 1px solid var(--line); border-radius: 24px; box-shadow: var(--shadow); display: none; flex-direction: column; align-items: stretch; gap: 9px; }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 9px; }
  .site-nav .nav-cta { margin-top: 8px; text-align: center; }
  .hero { padding-top: 130px; }
  .hero-grid, .manifesto-grid, .preview-shell, .roadmap-grid, .faq-grid { grid-template-columns: 1fr; }
  .hero-grid { gap: 40px; }
  .hero-copy { text-align: center; }
  .eyebrow, .hero-actions { justify-content: center; }
  .hero-lead, .proof-row { margin-left: auto; margin-right: auto; }
  .hero-visual { width: min(560px, 100%); margin-inline: auto; }
  .manifesto-grid, .preview-shell, .roadmap-grid, .faq-grid { gap: 50px; }
  .section-heading { grid-template-columns: 1fr; gap: 25px; }
  .loop-grid { grid-template-columns: repeat(2, 1fr); }
  .loop-card:nth-child(n) { transform: none; }
  .scene-strip { grid-template-columns: 1fr 1fr; }
  .scene-featured { grid-column: 1 / -1; }
  .preview-copy { text-align: center; }
  .preview-stage { max-width: 620px; margin-inline: auto; width: 100%; }
}

@media (max-width: 620px) {
  :root { --shell: calc(100vw - 28px); }
  .section-pad { padding: 72px 0; }
  .nav-shell { height: 68px; }
  .brand { font-size: 18px; }
  .brand img { width: 38px; height: 38px; }
  .hero { min-height: auto; padding-top: 106px; }
  h1 { font-size: clamp(51px, 16vw, 70px); }
  .hero-lead { margin-top: 24px; font-size: 16px; }
  .hero-actions { flex-direction: column; gap: 12px; }
  .proof-row { grid-template-columns: 1fr; gap: 10px; text-align: left; }
  .proof-row div { padding: 9px 0; border-bottom: 1px solid var(--line); }
  .hero-visual { height: 560px; }
  .phone-main { left: 50%; width: 279px; height: 569px; transform: translateX(-50%) rotate(2deg); }
  .phone-side { left: -45px; top: 112px; width: 200px; height: 405px; }
  .note-korean { right: -8px; top: 290px; }
  .note-task { display: none; }
  .orbit-one { width: 470px; height: 470px; left: 50%; transform: translateX(-50%); }
  .orbit-two { width: 340px; height: 340px; left: 50%; transform: translateX(-50%); }
  .manifesto h2, .section-heading h2, .preview-copy h2, .roadmap-grid h2, .faq-grid h2 { font-size: 43px; }
  .loop-grid, .scene-strip { grid-template-columns: 1fr; }
  .scene-featured { grid-column: auto; }
  .loop-card { min-height: 270px; }
  .loop-icon { margin: 30px 0 23px; }
  .scenes-section { padding-top: 90px; }
  .preview-stage { min-height: 590px; padding: 23px 18px 0; border-radius: 30px; }
  .preview-phone { width: 286px; height: 550px; border-width: 6px; border-radius: 35px 35px 0 0; }
  .roadmap-list > div { grid-template-columns: 1fr; }
  .roadmap-list span { grid-row: auto; margin-bottom: 7px; }
  .closing-section { padding: 14px; }
  .closing-card { width: 100%; padding: 70px 20px; border-radius: 30px; }
  .footer-top, .footer-bottom { flex-direction: column; }
  .footer-links { gap: 38px; flex-wrap: wrap; }
}