:root {
  color-scheme: light;
  --ink: #172026;
  --muted: #63707a;
  --line: #dde7e6;
  --paper: #fbfdfc;
  --teal: #0f766e;
  --teal-dark: #0b4f49;
  --coral: #ff6b5f;
  --violet: #7c3aed;
  --sun: #f8c65a;
  --radius: 8px;
  --shadow: 0 24px 70px rgba(15, 79, 73, 0.18);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px clamp(20px, 5vw, 64px);
  background: rgba(251, 253, 252, 0.86);
  border-bottom: 1px solid rgba(221, 231, 230, 0.75);
  backdrop-filter: blur(18px);
}

.brand,
.top-nav,
.hero-actions,
.proof-strip,
.site-footer nav {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  color: #fff;
  background: var(--teal);
  border-radius: var(--radius);
}

.top-nav {
  gap: 26px;
  color: var(--muted);
  font-size: 14px;
}

.top-nav a:hover,
.site-footer a:hover {
  color: var(--teal);
}

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border-radius: var(--radius);
  font-weight: 800;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.header-cta {
  padding: 0 18px;
  color: #fff;
  background: var(--ink);
  font-size: 14px;
}

.button {
  padding: 0 24px;
}

.button:hover,
.header-cta:hover {
  transform: translateY(-2px);
}

.button.primary {
  color: #fff;
  background: var(--teal);
  box-shadow: 0 14px 30px rgba(15, 118, 110, 0.24);
}

.button.secondary {
  color: var(--teal-dark);
  background: #fff;
  border: 1px solid var(--line);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(420px, 1.08fr);
  gap: clamp(28px, 5vw, 72px);
  min-height: min(620px, calc(100svh - 68px));
  padding: clamp(28px, 4.5vw, 56px) clamp(20px, 5vw, 64px) 28px;
  align-items: center;
  overflow: hidden;
}

.hero-copy {
  max-width: 680px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--coral);
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

h1,
h2,
h3,
p,
dl,
dd {
  margin-top: 0;
}

h1 {
  margin-bottom: 22px;
  font-size: clamp(38px, 4.4vw, 56px);
  line-height: 1.02;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.12;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 21px;
}

.hero-text {
  max-width: 560px;
  color: var(--muted);
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.72;
}

.hero-actions {
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 30px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 42px 0 0;
}

.hero-stats div {
  padding: 18px 16px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.hero-stats dt {
  font-size: 23px;
  font-weight: 900;
}

.hero-stats dd {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 13px;
}

.hero-visual {
  position: relative;
  min-height: 380px;
}

.hero-visual img {
  width: min(900px, 68vw);
  max-width: none;
  height: clamp(340px, 42vw, 500px);
  object-fit: cover;
  object-position: center;
  border-radius: 8px 0 0 8px;
  box-shadow: var(--shadow);
}

.score-panel {
  position: absolute;
  right: clamp(16px, 4vw, 72px);
  bottom: clamp(20px, 6vw, 76px);
  display: grid;
  gap: 6px;
  width: min(230px, 52vw);
  padding: 18px;
  color: #fff;
  background: rgba(23, 32, 38, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius);
  box-shadow: 0 18px 42px rgba(23, 32, 38, 0.28);
  backdrop-filter: blur(14px);
}

.score-label,
.score-note {
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
}

.score-panel strong {
  font-size: 48px;
  line-height: 1;
}

.proof-strip {
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 20px;
  background: var(--teal-dark);
}

.proof-strip span {
  padding: 9px 14px;
  color: #fff;
  background: rgba(255, 255, 255, 0.11);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 800;
}

.section {
  padding: clamp(70px, 9vw, 120px) clamp(20px, 5vw, 64px);
}

.section-heading {
  max-width: 760px;
  margin: 0 auto 36px;
  text-align: center;
}

.flow-grid,
.plans {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.flow-grid article,
.plan,
.feature-list article {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.flow-grid article {
  padding: 28px;
}

.flow-grid span {
  display: inline-flex;
  margin-bottom: 42px;
  color: var(--teal);
  font-weight: 900;
}

.flow-grid p,
.feature-copy p,
.feature-list span,
.plan span,
.site-footer p {
  color: var(--muted);
  line-height: 1.65;
}

.feature-section {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1fr);
  gap: clamp(28px, 6vw, 82px);
  background: #eef7f4;
}

.feature-copy {
  max-width: 620px;
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.feature-list article {
  padding: 22px;
}

.feature-list strong,
.feature-list span {
  display: block;
}

.feature-list strong {
  margin-bottom: 8px;
  font-size: 18px;
}

.plans-section {
  background: #fff8ee;
}

.plans {
  max-width: 1020px;
  margin: 0 auto;
}

.plan {
  padding: 26px;
}

.plan-name {
  margin-bottom: 18px;
  color: var(--teal);
  font-weight: 900;
}

.plan strong {
  display: block;
  margin-bottom: 10px;
  font-size: 34px;
}

.plan.featured {
  color: #fff;
  background: var(--ink);
  border-color: var(--ink);
  transform: translateY(-10px);
}

.plan.featured .plan-name {
  color: var(--sun);
}

.plan.featured span {
  color: rgba(255, 255, 255, 0.74);
}

.final-cta {
  padding: clamp(76px, 10vw, 126px) 20px;
  color: #fff;
  background: linear-gradient(135deg, var(--teal-dark), #19323a 62%, #46256f);
  text-align: center;
}

.final-cta h2 {
  max-width: 820px;
  margin-right: auto;
  margin-left: auto;
}

.final-cta .button {
  margin-top: 18px;
  background: #fff;
  color: var(--teal-dark);
  box-shadow: none;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 28px;
  padding: 34px clamp(20px, 5vw, 64px);
  background: #fff;
  border-top: 1px solid var(--line);
}

.site-footer p {
  margin-bottom: 0;
  font-size: 14px;
}

.site-footer nav {
  gap: 18px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 980px) {
  .top-nav {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero-visual {
    min-height: 0;
    order: -1;
  }

  .hero-visual img {
    width: 100%;
    height: min(72vw, 560px);
    border-radius: var(--radius);
  }

  .feature-section,
  .flow-grid,
  .plans {
    grid-template-columns: 1fr;
  }

  .plan.featured {
    transform: none;
  }
}

@media (max-width: 640px) {
  .site-header {
    padding: 12px 16px;
  }

  .header-cta {
    min-height: 38px;
    padding: 0 13px;
  }

  .hero {
    padding: 22px 16px 42px;
  }

  h1 {
    font-size: 38px;
  }

  .hero-actions .button {
    width: 100%;
  }

  .hero-stats,
  .feature-list {
    grid-template-columns: 1fr;
  }

  .score-panel {
    right: 12px;
    bottom: 12px;
    width: 190px;
    padding: 14px;
  }

  .score-panel strong {
    font-size: 38px;
  }

  .section {
    padding-right: 16px;
    padding-left: 16px;
  }

  .site-footer {
    flex-direction: column;
  }
}