:root {
  color-scheme: light;
  --primary: #3182f6;
  --primary-dark: #1768dc;
  --primary-soft: #eaf3ff;
  --primary-pale: #f7faff;
  --primary-line: #cfe2ff;
  --ink: #202730;
  --muted: #657386;
  --quiet: #94a1b2;
  --line: #e3eaf2;
  --white: #ffffff;
  --shadow: 0 24px 64px rgba(31, 88, 168, 0.12);
  --soft-shadow: 0 14px 38px rgba(31, 88, 168, 0.09);
  --header-height: 76px;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  min-height: 100%;
  scroll-behavior: smooth;
  background: var(--primary-pale);
}

body {
  min-width: 320px;
  min-height: 100%;
  margin: 0;
  overflow-x: hidden;
  background: var(--primary-pale);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", "Segoe UI", sans-serif;
  letter-spacing: 0;
  word-break: keep-all;
}

button,
a {
  color: inherit;
  font: inherit;
}

button {
  cursor: pointer;
}

a {
  text-decoration: none;
}

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

.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;
}

.site-header {
  position: fixed;
  z-index: 50;
  top: 0;
  left: 50%;
  display: grid;
  width: min(calc(100% - 48px), 1240px);
  height: var(--header-height);
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  transform: translateX(-50%);
}

.brand {
  justify-self: start;
}

.brand-word {
  display: inline-flex;
  align-items: baseline;
  color: var(--primary);
  font-family: "Arial Rounded MT Bold", "Apple SD Gothic Neo", sans-serif;
  font-size: 35px;
  font-weight: 900;
  line-height: 1;
}

.header-nav {
  display: flex;
  gap: 34px;
  align-items: center;
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
}

.header-nav a,
.footer-links a {
  transition: color 180ms ease;
}

.header-nav a:hover,
.footer-links a:hover {
  color: var(--primary);
}

.header-download {
  min-width: 110px;
  padding: 11px 18px;
  justify-self: end;
  border-radius: 999px;
  background: var(--primary);
  color: var(--white);
  font-size: 13px;
  font-weight: 900;
  text-align: center;
  box-shadow: 0 10px 24px rgba(49, 130, 246, 0.22);
}

.page-progress {
  position: fixed;
  z-index: 60;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: rgba(49, 130, 246, 0.08);
}

.progress-line {
  display: block;
  width: 0;
  height: 100%;
  background: var(--primary);
}

.story-section {
  position: relative;
  display: grid;
  min-height: 760px;
  align-items: center;
  overflow: hidden;
  border-bottom: 1px solid rgba(207, 226, 255, 0.7);
  background: var(--primary-pale);
  scroll-margin-top: var(--header-height);
}

.story-section:nth-of-type(even) {
  background: var(--white);
}

.section-shell {
  position: relative;
  z-index: 2;
  width: min(calc(100% - 64px), 1200px);
  margin: 0 auto;
  padding: clamp(110px, 12vh, 150px) 0 clamp(80px, 10vh, 120px);
}

.split-layout,
.hero-shell {
  display: grid;
  grid-template-columns: minmax(320px, 0.82fr) minmax(500px, 1.18fr);
  align-items: center;
  gap: clamp(64px, 8vw, 132px);
}

.visual-first .section-copy {
  order: 2;
}

.visual-first > :last-child {
  order: 1;
}

.eyebrow,
.step-label {
  margin: 0 0 20px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 900;
  line-height: 1.4;
}

.step-label {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--quiet);
}

.step-label span {
  display: inline-grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid var(--primary-line);
  border-radius: 50%;
  color: var(--primary);
}

.hero-copy h1,
.section-copy h2,
.closing-content h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(42px, 5.2vw, 72px);
  font-weight: 900;
  line-height: 1.18;
}

.hero-copy h1 strong,
.section-copy h2 strong {
  color: var(--primary);
}

.hero-copy .lead,
.section-copy > p,
.closing-content > p {
  margin: 28px 0 0;
  color: var(--muted);
  font-size: clamp(17px, 1.65vw, 21px);
  font-weight: 650;
  line-height: 1.7;
}

.section-copy h2 {
  font-size: clamp(36px, 4.2vw, 58px);
}

.store-badges {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-top: 34px;
}

.store-badge {
  display: block;
  width: 158px;
  height: 48px;
  padding: 0;
  overflow: hidden;
  border: 0;
  border-radius: 8px;
  background: transparent;
}

.store-badge img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}