:root { --bg: #F2F2F7; --card: #FFFFFF; --text: #1C1C1E; --sub: #6C6C70; --accent: #0064D2; --line: #D1D1D6; color-scheme: light dark; }
@media (prefers-color-scheme: dark) { :root { --bg: #000000; --card: #1C1C1E; --text: #F2F2F7; --sub: #A1A1A6; --accent: #0A84FF; --line: #38383A; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 17px/1.55 -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Segoe UI", sans-serif; }
main { max-width: 680px; margin: 0 auto; padding: 48px 20px 64px; }
header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 32px; }
.brand { font-weight: 800; font-size: 20px; color: var(--text); text-decoration: none; }
nav a { color: var(--sub); text-decoration: none; margin-left: 16px; font-size: 15px; }
h1 { font-size: 34px; line-height: 1.15; margin: 0 0 8px; }
h2 { font-size: 20px; margin: 32px 0 8px; }
p, li { color: var(--text); }
.sub { color: var(--sub); margin-top: 0; }
.card { background: var(--card); border-radius: 16px; padding: 20px 24px; margin: 24px 0; }
a { color: var(--accent); }
footer { margin-top: 48px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--sub); font-size: 14px; }

/* ---------- Landing ---------- */
.landing main { max-width: 1040px; }
.hero { text-align: center; padding: 24px 0 8px; }
.icons { display: flex; justify-content: center; margin-bottom: 28px; }
.icons img { width: 84px; height: 84px; border-radius: 19px; box-shadow: 0 10px 30px rgba(0,0,0,.14); border: 1px solid var(--line); }
.icons img + img { margin-left: -18px; }
.icons img:nth-child(1) { transform: rotate(-8deg) translateY(6px); }
.icons img:nth-child(3) { transform: rotate(8deg) translateY(6px); }
.icons img:nth-child(2) { position: relative; z-index: 1; }
.hero h1 { font-size: clamp(44px, 9vw, 80px); line-height: 1.02; letter-spacing: -0.03em; margin: 0 0 18px; }
.hero h1 span { color: var(--accent); }
.hero .sub { font-size: 19px; max-width: 520px; margin: 0 auto 24px; }
.pill { display: inline-block; padding: 8px 16px; border-radius: 999px; background: var(--card); border: 1px solid var(--line); color: var(--sub); font-size: 15px; font-weight: 600; }

.themes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin: 64px 0 24px; }
.theme { text-align: center; }
.phone { border-radius: 36px; overflow: hidden; border: 6px solid #1C1C1E; box-shadow: 0 20px 50px rgba(0,0,0,.18); aspect-ratio: 1206 / 2622; background: #000; }
.phone img { width: 100%; height: 100%; object-fit: cover; display: block; }
.theme h3 { margin: 18px 0 2px; font-size: 19px; }
.theme p { margin: 0; color: var(--sub); font-size: 15px; }
@media (max-width: 720px) {
  .themes { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; gap: 16px; margin: 48px -20px 16px; padding: 0 20px 12px; }
  .theme { flex: 0 0 68%; scroll-snap-align: center; }
}

.steps { display: grid; grid-template-columns: 220px 1fr; gap: 40px; align-items: center; margin: 72px 0; }
.ring { width: 220px; height: 220px; border-radius: 50%; position: relative;
  background: conic-gradient(var(--accent) 0 50%, #9CC3EF 50% 100%); }
.ring::after { content: "30:30"; position: absolute; inset: 30px; border-radius: 50%; background: var(--bg);
  display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 36px; letter-spacing: -0.02em; }
.steps ol { list-style: none; padding: 0; margin: 0; counter-reset: s; }
.steps li { counter-increment: s; position: relative; padding-left: 52px; margin: 0 0 22px; }
.steps li::before { content: counter(s); position: absolute; left: 0; top: 0; width: 34px; height: 34px; border-radius: 50%;
  background: var(--accent); color: #fff; font-weight: 700; display: flex; align-items: center; justify-content: center; }
.steps li strong { display: block; font-size: 19px; }
.steps li span { color: var(--sub); }
@media (max-width: 720px) { .steps { grid-template-columns: 1fr; justify-items: center; } .steps ol { width: 100%; } }

.privacy { text-align: center; padding: 28px 24px; }
.privacy h2 { margin-top: 0; }
.privacy p { color: var(--sub); max-width: 520px; margin: 0 auto 12px; }

/* Korean: wrap between words, not inside them. */
:lang(ko) { word-break: keep-all; }