:root {
  --navy: #0b2942;
  --navy-2: #123c59;
  --green: #16846e;
  --mint: #62d5b5;
  --cream: #f4f8f5;
  --paper: #fffefd;
  --mist: #e8f2ee;
  --text: #173249;
  --muted: #647784;
  --line: #dbe6e1;
  --serif: "Newsreader", Georgia, serif;
  --sans: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--text); background: var(--cream); font-family: var(--sans); line-height: 1.6; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; }
a { color: inherit; }
button, input { font: inherit; }
.shell { width: min(1160px, calc(100% - 44px)); margin-inline: auto; }
.narrow { max-width: 760px; }
.centered { text-align: center; }
.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: 10px; left: 10px; z-index: 100; transform: translateY(-150%); padding: 10px 16px; background: white; border-radius: 8px; }
.skip-link:focus { transform: none; }

.site-header { position: sticky; top: 0; z-index: 50; border-bottom: 1px solid rgba(219,230,225,.75); background: rgba(244,248,245,.87); backdrop-filter: blur(16px); }
.header-inner { height: 78px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; }
.brand img { width: 48px; height: 48px; border-radius: 14px; }
.brand span { font: 600 1.55rem/1 var(--serif); color: var(--navy); }
.site-nav { display: flex; align-items: center; gap: 28px; }
.site-nav > a:not(.button) { color: #526a79; font-size: .91rem; font-weight: 600; text-decoration: none; }
.site-nav > a:hover { color: var(--green); }
.menu-button { display: none; width: 44px; height: 44px; padding: 10px; border: 0; border-radius: 10px; background: transparent; }
.menu-button span:not(.sr-only) { display: block; height: 2px; margin: 5px 0; background: var(--navy); }

.button { display: inline-flex; align-items: center; justify-content: center; gap: 12px; min-height: 50px; padding: 13px 22px; border: 0; border-radius: 999px; background: var(--navy); color: white; font-weight: 700; text-decoration: none; cursor: pointer; transition: transform .2s ease, background .2s ease, box-shadow .2s ease; }
.button:hover { transform: translateY(-2px); background: var(--green); box-shadow: 0 14px 28px rgba(11,41,66,.14); }
.button-small { min-height: 42px; padding: 9px 18px; font-size: .88rem; }
.button-full { width: 100%; }
.text-link { color: var(--navy); font-weight: 700; text-decoration: none; }
.text-link:hover { color: var(--green); }

.hero { position: relative; min-height: 720px; overflow: hidden; display: flex; align-items: center; padding: 70px 0 58px; }
.hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: 70px; }
.hero-orb { position: absolute; border-radius: 50%; filter: blur(4px); pointer-events: none; }
.hero-orb-one { width: 480px; height: 480px; right: -120px; top: 70px; background: radial-gradient(circle, rgba(98,213,181,.22), rgba(98,213,181,0) 68%); }
.hero-orb-two { width: 280px; height: 280px; left: -160px; bottom: -20px; background: radial-gradient(circle, rgba(18,60,89,.08), rgba(18,60,89,0) 70%); }
.eyebrow, .section-kicker { margin: 0 0 16px; color: var(--green); font-size: .78rem; font-weight: 700; letter-spacing: .09em; text-transform: uppercase; }
.eyebrow { display: flex; align-items: center; gap: 10px; }
.eyebrow span { width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 5px rgba(22,132,110,.1); }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 22px; color: var(--navy); font: 600 clamp(3.7rem, 6.5vw, 5.8rem)/.91 var(--serif); letter-spacing: -.045em; }
h1 em { color: var(--green); font-weight: 500; }
.hero-lede { max-width: 610px; margin-bottom: 30px; color: #526a79; font-size: 1.14rem; line-height: 1.72; }
.hero-actions { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }
.trust-list { display: flex; flex-wrap: wrap; gap: 16px 28px; margin: 28px 0 0; padding: 0; list-style: none; color: var(--muted); font-size: .85rem; }
.trust-list li::before { content: "✓"; margin-right: 7px; color: var(--green); font-weight: 800; }

.hero-product { position: relative; min-height: 580px; display: grid; place-items: center; }
.product-halo { position: absolute; width: 480px; height: 480px; border-radius: 48% 52% 60% 40%; background: linear-gradient(145deg, #d8eee7, #eaf3ef); transform: rotate(-8deg); }
.phone { position: relative; z-index: 2; width: 285px; padding: 12px; border-radius: 44px; background: linear-gradient(145deg, #152333, #07101a); box-shadow: 0 45px 80px rgba(11,41,66,.28), inset 0 1px rgba(255,255,255,.18); }
.phone-hero { transform: rotate(3deg); }
.phone-speaker { position: absolute; top: 13px; left: 50%; z-index: 3; width: 90px; height: 24px; transform: translateX(-50%); border-radius: 0 0 14px 14px; background: #07101a; }
.phone-screen { overflow: hidden; border-radius: 33px; background: white; }
.phone-screen img { display: block; }
.float-card { position: absolute; z-index: 5; display: flex; gap: 12px; align-items: center; min-width: 214px; padding: 13px 16px; border: 1px solid rgba(255,255,255,.7); border-radius: 15px; background: rgba(255,255,255,.92); box-shadow: 0 18px 42px rgba(11,41,66,.15); backdrop-filter: blur(12px); }
.float-card strong, .float-card small { display: block; }
.float-card strong { color: var(--navy); font-size: .88rem; }
.float-card small { color: var(--muted); font-size: .72rem; }
.float-card-top { top: 118px; left: -14px; }
.float-card-bottom { right: -6px; bottom: 105px; }
.float-icon { display: grid; place-items: center; flex: 0 0 34px; width: 34px; height: 34px; border-radius: 10px; background: var(--mist); color: var(--green); font-weight: 800; }
.float-icon.check { color: white; background: var(--green); }

.proof-strip { border-block: 1px solid var(--line); background: rgba(255,255,255,.55); }
.proof-grid { display: grid; grid-template-columns: repeat(4,1fr); }
.proof-grid div { padding: 23px 28px; border-right: 1px solid var(--line); }
.proof-grid div:first-child { padding-left: 0; }
.proof-grid div:last-child { border-right: 0; }
.proof-grid strong, .proof-grid span { display: block; }
.proof-grid strong { color: var(--navy); font-size: 1rem; }
.proof-grid span { color: var(--muted); font-size: .79rem; }

.section { padding: 110px 0; }
.section h2 { margin-bottom: 20px; color: var(--navy); font: 600 clamp(2.5rem, 4.8vw, 4.1rem)/1.02 var(--serif); letter-spacing: -.035em; }
.section-lede { color: var(--muted); font-size: 1.08rem; }
.problem-section { background: var(--paper); }
.problem-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; margin-top: 50px; }
.problem-card { min-height: 275px; padding: 30px; border: 1px solid var(--line); border-radius: 22px; background: #f7faf8; }
.problem-card.featured { color: white; border-color: var(--navy); background: var(--navy); transform: translateY(18px); }
.card-number { display: inline-block; margin-bottom: 56px; color: var(--green); font-size: .78rem; font-weight: 700; letter-spacing: .08em; }
.featured .card-number { color: var(--mint); }
.problem-card h3 { margin-bottom: 9px; font: 600 1.6rem/1.1 var(--serif); }
.problem-card p { margin: 0; color: var(--muted); font-size: .94rem; }
.problem-card.featured p { color: #cbd9e0; }

.how-section { background: var(--cream); }
.split-heading { display: grid; grid-template-columns: 1.15fr .85fr; align-items: end; gap: 70px; margin-bottom: 46px; }
.split-heading > p { margin-bottom: 10px; color: var(--muted); font-size: 1.05rem; }
.path-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.path-card { padding: 28px; border: 1px solid var(--line); border-radius: 20px; background: var(--paper); transition: transform .2s ease, box-shadow .2s ease; }
.path-card:hover { transform: translateY(-5px); box-shadow: 0 22px 44px rgba(11,41,66,.09); }
.path-icon { display: grid; place-items: center; width: 44px; height: 44px; margin-bottom: 42px; border-radius: 13px; background: var(--mist); color: var(--green); font-size: 1.25rem; font-weight: 700; }
.path-label { margin-bottom: 8px; color: var(--green); font-size: .74rem; font-weight: 700; text-transform: uppercase; letter-spacing: .07em; }
.path-card h3 { margin-bottom: 10px; color: var(--navy); font: 600 1.45rem/1.15 var(--serif); }
.path-card > p:last-child { margin: 0; color: var(--muted); font-size: .9rem; }

.workflow { display: grid; grid-template-columns: 1fr .82fr; align-items: center; gap: 90px; margin-top: 120px; padding: 68px; border-radius: 34px; background: var(--mist); }
.workflow-steps { display: grid; gap: 22px; padding: 0; list-style: none; }
.workflow-steps li { display: grid; grid-template-columns: 42px 1fr; gap: 16px; }
.workflow-steps li > span { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 50%; background: white; color: var(--green); font-weight: 800; }
.workflow-steps strong { color: var(--navy); }
.workflow-steps p { margin: 2px 0 0; color: var(--muted); font-size: .87rem; }
.screenshot-card { position: relative; overflow: hidden; max-height: 530px; padding: 0; border: 0; border-radius: 25px; background: white; box-shadow: 0 28px 52px rgba(11,41,66,.17); cursor: zoom-in; }
.screenshot-card img { display: block; width: 100%; }
.screenshot-card span { position: absolute; right: 14px; bottom: 14px; padding: 7px 11px; border-radius: 999px; background: rgba(11,41,66,.86); color: white; font-size: .72rem; font-weight: 700; }

.korea-section { overflow: hidden; color: white; background: var(--navy); }
.korea-grid { display: grid; grid-template-columns: 1.05fr .72fr; align-items: center; gap: 110px; }
.korea-section h2 { color: white; }
.korea-copy > p:not(.section-kicker):not(.worldwide-note) { max-width: 570px; color: #cad8df; font-size: 1.08rem; }
.section-kicker.light { color: var(--mint); }
.map-pills { display: flex; flex-wrap: wrap; gap: 9px; margin: 32px 0 28px; }
.map-pills span { padding: 8px 13px; border: 1px solid rgba(255,255,255,.18); border-radius: 999px; background: rgba(255,255,255,.07); font-size: .8rem; font-weight: 600; }
.worldwide-note { margin: 0; color: var(--mint); font-weight: 700; }
.korea-visual { max-height: 520px; }
.dark-card { transform: rotate(2deg); box-shadow: 0 36px 70px rgba(0,0,0,.3); }

.privacy-section { background: var(--paper); }
.privacy-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; }
.privacy-points { display: grid; gap: 26px; }
.privacy-points > div { display: grid; grid-template-columns: 34px 1fr; gap: 14px; }
.privacy-points > div > span { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: var(--mist); color: var(--green); font-weight: 800; }
.privacy-points p { margin: 0; color: var(--muted); }
.privacy-points strong { color: var(--navy); }

.beta-section { color: white; background: linear-gradient(135deg, var(--navy), #104e68); }
.beta-grid { display: grid; grid-template-columns: .9fr 1.1fr; align-items: center; gap: 90px; }
.beta-section h2 { color: white; }
.beta-copy > p:not(.section-kicker), .beta-copy li { color: #cbdbe1; }
.beta-copy ul { display: grid; gap: 9px; padding: 0; list-style: none; }
.beta-copy li::before { content: "✓"; margin-right: 9px; color: var(--mint); font-weight: 800; }
.beta-form { padding: 34px; border-radius: 24px; background: white; color: var(--text); box-shadow: 0 35px 60px rgba(0,0,0,.2); }
.form-heading { margin-bottom: 22px; }
.form-heading strong, .form-heading span { display: block; }
.form-heading strong { color: var(--navy); font: 600 1.7rem/1.2 var(--serif); }
.form-heading span { margin-top: 5px; color: var(--muted); font-size: .84rem; }
.beta-form > label, .beta-form legend { display: block; margin-bottom: 8px; color: var(--navy); font-size: .8rem; font-weight: 700; }
.beta-form label small { color: var(--muted); font-weight: 500; }
.beta-form input[type="email"], .beta-form input[type="text"] { width: 100%; height: 50px; margin: 0 0 18px; padding: 0 14px; border: 1px solid var(--line); border-radius: 11px; outline: 0; }
.beta-form input:focus { border-color: var(--green); box-shadow: 0 0 0 3px rgba(22,132,110,.1); }
.beta-form fieldset { margin: 0 0 18px; padding: 0; border: 0; }
.choice-row { display: grid; grid-template-columns: repeat(3,1fr); gap: 8px; }
.choice-row label { cursor: pointer; }
.choice-row input { position: absolute; opacity: 0; }
.choice-row span { display: block; padding: 10px; border: 1px solid var(--line); border-radius: 10px; color: var(--muted); text-align: center; font-size: .82rem; }
.choice-row input:checked + span { border-color: var(--green); background: var(--mist); color: var(--green); font-weight: 700; }
.form-note, .form-status { margin: 10px 0 0; color: var(--muted); text-align: center; font-size: .72rem; }
.form-status { color: var(--green); font-weight: 700; }

.faq-section { background: var(--cream); }
.faq-grid { display: grid; grid-template-columns: .72fr 1.28fr; gap: 100px; }
.faq-intro { position: sticky; top: 120px; align-self: start; }
.faq-intro p:last-child { color: var(--muted); }
.faq-intro a { color: var(--green); }
.accordion details { border-bottom: 1px solid var(--line); }
.accordion summary { padding: 22px 36px 22px 0; color: var(--navy); font-weight: 700; cursor: pointer; list-style: none; position: relative; }
.accordion summary::-webkit-details-marker { display: none; }
.accordion summary::after { content: "+"; position: absolute; right: 2px; font-size: 1.25rem; font-weight: 400; }
.accordion details[open] summary::after { content: "−"; }
.accordion details p { max-width: 60ch; padding-right: 34px; color: var(--muted); }

.site-footer { padding: 64px 0 24px; color: #bfd0da; background: #071d2e; }
.footer-grid { display: flex; justify-content: space-between; gap: 50px; }
.footer-brand span { color: white; }
.footer-grid p { margin: 15px 0 0; font-size: .86rem; }
.footer-links { display: grid; grid-template-columns: repeat(2,auto); gap: 10px 38px; align-content: start; }
.footer-links a { font-size: .84rem; text-decoration: none; }
.footer-links a:hover { color: white; }
.footer-bottom { display: flex; justify-content: space-between; margin-top: 52px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.1); font-size: .72rem; }

.lightbox { width: min(460px, calc(100% - 30px)); max-height: 90vh; padding: 0; border: 0; border-radius: 24px; background: transparent; box-shadow: 0 35px 90px rgba(0,0,0,.4); }
.lightbox::backdrop { background: rgba(3,15,24,.76); backdrop-filter: blur(7px); }
.lightbox img { display: block; width: 100%; max-height: 90vh; object-fit: contain; border-radius: 24px; }
.lightbox button { position: fixed; top: 20px; right: 24px; width: 44px; height: 44px; border: 0; border-radius: 50%; background: white; color: var(--navy); font-size: 1.6rem; cursor: pointer; }

@media (max-width: 900px) {
  .hero-grid, .split-heading, .workflow, .korea-grid, .privacy-grid, .beta-grid, .faq-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 44px; }
  .hero-product { min-height: 510px; }
  .proof-grid { grid-template-columns: repeat(2,1fr); }
  .proof-grid div:nth-child(2) { border-right: 0; }
  .problem-grid, .path-grid { grid-template-columns: 1fr; }
  .problem-card { min-height: 220px; }
  .problem-card.featured { transform: none; }
  .card-number, .path-icon { margin-bottom: 28px; }
  .workflow { gap: 50px; margin-top: 70px; padding: 40px; }
  .screenshot-card { width: min(430px,100%); margin-inline: auto; }
  .korea-grid { gap: 50px; }
  .korea-visual { max-height: 460px; }
  .privacy-grid, .beta-grid, .faq-grid { gap: 50px; }
  .faq-intro { position: static; }
}

@media (max-width: 720px) {
  .shell { width: min(100% - 32px, 1160px); }
  .site-header { background: rgba(244,248,245,.96); }
  .header-inner { height: 70px; }
  .brand img { width: 42px; height: 42px; }
  .brand span { font-size: 1.35rem; }
  .menu-button { display: block; }
  .site-nav { position: absolute; top: 70px; left: 0; right: 0; display: none; padding: 18px 20px 24px; border-bottom: 1px solid var(--line); background: var(--cream); box-shadow: 0 18px 32px rgba(11,41,66,.1); }
  .site-nav.open { display: grid; gap: 6px; }
  .site-nav > a:not(.button) { padding: 10px; }
  .site-nav .button { margin-top: 8px; }
  .hero { min-height: auto; padding: 50px 0 40px; }
  .hero-grid { gap: 34px; }
  h1 { font-size: clamp(3.25rem, 16vw, 4.5rem); }
  .hero-lede { font-size: 1rem; }
  .hero-product { min-height: 470px; margin-inline: -15px; }
  .phone { width: 235px; }
  .product-halo { width: 390px; height: 390px; }
  .float-card { min-width: 184px; padding: 10px 12px; }
  .float-card-top { left: 0; top: 95px; }
  .float-card-bottom { right: 0; bottom: 74px; }
  .proof-grid div { padding: 18px 12px; }
  .proof-grid div:nth-child(odd) { padding-left: 0; }
  .section { padding: 78px 0; }
  .section h2 { font-size: clamp(2.35rem, 11vw, 3.3rem); }
  .workflow { margin-inline: -6px; padding: 28px 20px; border-radius: 24px; }
  .beta-form { padding: 25px 19px; }
  .choice-row { grid-template-columns: 1fr; }
  .footer-grid, .footer-bottom { display: grid; gap: 28px; }
  .footer-links { grid-template-columns: 1fr 1fr; }
  .lightbox button { top: 10px; right: 10px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}