:root {
  color-scheme: light;
  --paper: #f8f7f2;
  --ink: #1f2224;
  --muted: #686d70;
  --line: rgba(31, 34, 36, 0.12);
  --wash: rgba(255, 255, 255, 0.72);
  --shadow: 0 20px 48px rgba(18, 20, 23, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 50% 0%, rgba(120, 124, 126, 0.08), transparent 32%),
    linear-gradient(180deg, #fbfaf6 0%, var(--paper) 48%, #efeee9 100%);
  color: var(--ink);
  font-family: "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", system-ui, sans-serif;
  letter-spacing: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

.landing-shell {
  width: min(100%, 920px);
  margin: 0 auto;
  padding: 22px 18px 56px;
}

.landing-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 10px 0 22px;
}

.brand {
  font-weight: 800;
  font-size: 18px;
}

.blog-link {
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #373b3e;
  font-size: 13px;
  background: rgba(255, 255, 255, 0.52);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(34px, 8vw, 72px) clamp(22px, 6vw, 54px);
  border: 1px solid var(--line);
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.82), rgba(255, 255, 255, 0.58)),
    url("/assets/ink-mountain.png") bottom right / min(88%, 520px) auto no-repeat;
  box-shadow: var(--shadow);
}

.eyebrow {
  margin: 0 0 12px;
  color: #555b5f;
  font-size: 13px;
  font-weight: 800;
}

h1 {
  margin: 0;
  max-width: 720px;
  font-size: clamp(26px, 5.8vw, 44px);
  line-height: 1.16;
  letter-spacing: -0.01em;
}

.lead {
  max-width: 660px;
  margin: 18px 0 0;
  color: #3d4245;
  font-size: clamp(16px, 4vw, 20px);
  line-height: 1.72;
  font-weight: 650;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.primary-cta,
.secondary-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 850;
}

.primary-cta {
  background: #191b1d;
  color: #fff;
}

.secondary-cta {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
  color: #303437;
}

.landing-share-button {
  gap: 7px;
  font: inherit;
  font-weight: 850;
  letter-spacing: 0;
  cursor: pointer;
  appearance: none;
}

.share-icon-stack {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  flex: 0 0 auto;
}

.share-icon {
  position: relative;
  display: inline-block;
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
  border: 1.5px solid rgba(34, 36, 35, 0.42);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.45);
}

.share-icon.is-kakao {
  border-radius: 999px;
  background: rgba(224, 219, 205, 0.72);
}

.share-icon.is-kakao::after {
  content: "";
  position: absolute;
  left: 2px;
  bottom: -3px;
  width: 6px;
  height: 6px;
  border-bottom: 1.5px solid rgba(34, 36, 35, 0.36);
  border-left: 1.5px solid rgba(34, 36, 35, 0.36);
  border-radius: 1px;
  background: inherit;
  transform: rotate(-28deg);
}

.share-icon.is-instagram {
  border-radius: 5px;
  background: rgba(239, 237, 230, 0.76);
}

.share-icon.is-instagram::before {
  content: "";
  position: absolute;
  inset: 4px;
  border: 1.35px solid rgba(34, 36, 35, 0.42);
  border-radius: 999px;
}

.share-icon.is-instagram::after {
  content: "";
  position: absolute;
  top: 3px;
  right: 3px;
  width: 3px;
  height: 3px;
  border-radius: 999px;
  background: rgba(34, 36, 35, 0.42);
}

.section {
  margin-top: 22px;
  padding: clamp(22px, 5vw, 34px);
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--wash);
  box-shadow: 0 12px 28px rgba(18, 20, 23, 0.05);
}

.section h2 {
  margin: 0 0 16px;
  font-size: 22px;
  line-height: 1.3;
}

.final-cta {
  text-align: center;
}

.final-cta p {
  max-width: 560px;
  margin: 0 auto;
  color: #3f4447;
  line-height: 1.72;
  font-weight: 650;
}

.final-cta .cta-row {
  justify-content: center;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.metric-grid span,
.preview-card {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.58);
}

.metric-grid span {
  min-height: 58px;
  display: flex;
  align-items: center;
  padding: 12px 14px;
  color: #33383b;
  font-weight: 800;
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.preview-card {
  padding: 18px;
}

.preview-card strong {
  display: block;
  margin-bottom: 8px;
  font-size: 17px;
}

.preview-card p,
.faq p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
  font-weight: 620;
}

.faq {
  display: grid;
  gap: 14px;
}

.faq h3 {
  margin: 0 0 6px;
  font-size: 16px;
}

.link-list {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.link-list a {
  padding: 10px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.58);
  color: #34383b;
  font-weight: 800;
}

.landing-footer {
  margin-top: 28px;
  color: rgba(44, 48, 51, 0.58);
  font-size: 13px;
  text-align: center;
}

.landing-share-toast {
  position: fixed;
  right: 50%;
  bottom: calc(22px + env(safe-area-inset-bottom, 0px));
  z-index: 10000;
  max-width: min(360px, calc(100vw - 32px));
  padding: 12px 16px;
  border: 1px solid rgba(30, 30, 30, 0.14);
  border-radius: 999px;
  background: rgba(31, 34, 36, 0.92);
  color: #ffffff;
  font-size: 13px;
  font-weight: 850;
  line-height: 1.35;
  text-align: center;
  box-shadow: 0 18px 42px rgba(20, 20, 20, 0.22);
  opacity: 0;
  pointer-events: none;
  transform: translate(50%, 12px);
  transition:
    opacity 180ms ease,
    transform 180ms ease;
}

.landing-share-toast.is-visible {
  opacity: 1;
  transform: translate(50%, 0);
}

@media (max-width: 720px) {
  .landing-shell {
    padding: 16px 14px 44px;
  }

  .landing-top {
    align-items: flex-start;
  }

  .hero {
    border-radius: 20px;
    background-size: 120% auto;
  }

  .metric-grid,
  .preview-grid {
    grid-template-columns: 1fr;
  }

  .primary-cta,
  .secondary-cta {
    width: 100%;
  }
}