:root {
  --bg: #f7f3ed;
  --bg-deep: #ece5da;
  --panel: rgba(255, 255, 255, 0.7);
  --text: #15120f;
  --muted: #655b53;
  --line: rgba(21, 18, 15, 0.1);
  --accent: #2b5fe4;
  --accent-soft: rgba(43, 95, 228, 0.12);
  --warm: #d97a38;
  --warm-soft: rgba(217, 122, 56, 0.12);
  --soft: #6f8c62;
  --soft-soft: rgba(111, 140, 98, 0.12);
  --panel-dark: #1d1916;
  --shadow: 0 30px 80px rgba(57, 45, 31, 0.09);
  --radius-xl: 36px;
  --radius-lg: 28px;
  --radius-md: 20px;
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 10% 12%, rgba(43, 95, 228, 0.06), transparent 24%),
    radial-gradient(circle at 86% 16%, rgba(217, 122, 56, 0.07), transparent 20%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 100%);
  font-family: "Noto Sans KR", sans-serif;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(21, 18, 15, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(21, 18, 15, 0.025) 1px, transparent 1px);
  background-size: 24px 24px;
  mask-image: radial-gradient(circle at center, black 30%, transparent 82%);
}

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

a:focus-visible {
  outline: 3px solid rgba(43, 95, 228, 0.22);
  outline-offset: 4px;
}

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

.page-shell {
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto;
  padding: 20px 0 52px;
}

.topbar,
.hero,
.manifesto,
.feature-list,
.statement,
.privacy,
.final-cta,
.footer {
  position: relative;
  z-index: 1;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 18px;
  border: 1px solid rgba(255, 255, 255, 0.58);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(22px);
  box-shadow: 0 12px 34px rgba(57, 45, 31, 0.06);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.04rem;
  font-weight: 700;
}

.brand img {
  width: 38px;
  height: 38px;
  border-radius: 12px;
}

.topbar-links {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  color: var(--muted);
  font-size: 0.94rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 700;
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

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

.button-primary {
  background: linear-gradient(135deg, var(--accent), #638af0);
  color: white;
  box-shadow: 0 18px 34px rgba(43, 95, 228, 0.18);
}

.button-secondary {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.5);
}

.button-small {
  min-height: 38px;
  padding: 0 14px;
  background: rgba(43, 95, 228, 0.12);
  color: var(--accent);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.92fr);
  gap: 68px;
  align-items: center;
  padding: 72px 0 40px;
}

.eyebrow,
.hero-meta span,
.mini-label,
.manifesto-label,
.feature-index,
.feature-kicker {
  font-family: "Space Grotesk", sans-serif;
}

.eyebrow,
.manifesto-label {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-meta span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.54);
  color: var(--muted);
  font-size: 0.82rem;
}

.hero h1,
.manifesto h2,
.section-heading h2,
.final-cta h2 {
  margin: 0;
  letter-spacing: -0.06em;
}

.hero h1 {
  margin-top: 18px;
  font-size: clamp(3.4rem, 7vw, 6.2rem);
  line-height: 0.88;
}

.hero h1 span {
  color: var(--accent);
}

.manifesto h2,
.section-heading h2,
.final-cta h2 {
  font-size: clamp(2.2rem, 4.8vw, 3.8rem);
  line-height: 0.96;
}

.lede,
.feature-copy,
.trust-grid p {
  color: var(--muted);
  line-height: 1.8;
}

.lede {
  max-width: 34rem;
  margin: 24px 0 0;
  font-size: 1.08rem;
}

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

.hero-stage {
  --tilt-x: 0;
  --tilt-y: 0;
  position: relative;
  min-height: 560px;
}

.hero-badge,
.device-frame {
  transition: transform 280ms ease;
}

.hero-badge {
  position: absolute;
  top: 0;
  right: 0;
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid rgba(21, 18, 15, 0.08);
  box-shadow: 0 16px 36px rgba(57, 45, 31, 0.06);
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
  transform:
    translateY(calc(var(--tilt-y) * -10px))
    translateX(calc(var(--tilt-x) * 10px));
}

.device-frame {
  position: absolute;
  inset: 56px 0 0 32px;
  border-radius: 40px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.84), rgba(247, 241, 232, 0.9));
  box-shadow: var(--shadow);
  overflow: hidden;
  transform:
    perspective(1400px)
    rotateX(calc(var(--tilt-y) * -4deg))
    rotateY(calc(var(--tilt-x) * 5deg))
    rotateZ(0.9deg);
}

.device-surface {
  padding: 24px;
}

.mini-label {
  margin: 0 0 14px;
  color: rgba(21, 18, 15, 0.54);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

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

.matrix-cell {
  min-height: 124px;
  padding: 16px;
  border-radius: 22px;
  border: 1px solid rgba(21, 18, 15, 0.06);
}

.matrix-cell span,
.matrix-cell small {
  display: block;
  color: var(--muted);
}

.matrix-cell span {
  font-size: 0.78rem;
  font-weight: 700;
}

.matrix-cell strong {
  display: block;
  margin-top: 10px;
  font-size: 1rem;
  line-height: 1.38;
}

.matrix-cell small {
  margin-top: 10px;
  font-size: 0.86rem;
}

.matrix-primary {
  background: linear-gradient(180deg, rgba(226, 236, 255, 0.96), rgba(242, 247, 255, 0.96));
}

.matrix-warm {
  background: linear-gradient(180deg, rgba(255, 235, 221, 0.96), rgba(255, 247, 240, 0.96));
}

.matrix-cool {
  background: linear-gradient(180deg, rgba(240, 242, 248, 0.96), rgba(247, 248, 251, 0.96));
}

.matrix-soft {
  background: linear-gradient(180deg, rgba(231, 240, 226, 0.96), rgba(246, 250, 244, 0.96));
}

.device-divider {
  height: 1px;
  margin: 22px 0;
  background: linear-gradient(90deg, transparent, rgba(21, 18, 15, 0.12), transparent);
}

.focus-list {
  display: grid;
  gap: 12px;
}

.focus-row {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 12px;
  align-items: center;
}

.focus-row span {
  color: rgba(21, 18, 15, 0.56);
  font-size: 0.92rem;
}

.focus-bar {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  padding: 0 16px;
  border-radius: 16px;
  font-weight: 700;
}

.focus-primary {
  background: rgba(43, 95, 228, 0.12);
  color: var(--accent);
}

.focus-warm {
  background: rgba(217, 122, 56, 0.14);
  color: #bb5f22;
}

.focus-soft {
  background: rgba(111, 140, 98, 0.14);
  color: #4e6a43;
}

.manifesto {
  padding: 36px 0 44px;
  border-top: 1px solid rgba(21, 18, 15, 0.1);
}

.feature-list {
  border-top: 1px solid rgba(21, 18, 15, 0.1);
}

.feature-row {
  display: grid;
  grid-template-columns: 88px minmax(220px, 0.85fr) minmax(0, 1.2fr) auto;
  gap: 18px;
  align-items: start;
  padding: 26px 0;
  border-bottom: 1px solid rgba(21, 18, 15, 0.1);
}

.feature-index {
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.06em;
}

.feature-kicker {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.feature-heading h3,
.trust-grid h3 {
  margin: 0;
  font-size: 1.4rem;
  line-height: 1.24;
}

.feature-copy {
  margin: 0;
}

.feature-aside {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.56);
  color: var(--muted);
  font-size: 0.84rem;
}

.statement {
  margin: 28px 0;
  padding: 30px 34px;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, rgba(26, 23, 20, 0.98), rgba(45, 39, 34, 0.98));
  box-shadow: 0 20px 48px rgba(57, 45, 31, 0.1);
}

.statement p {
  margin: 0;
  color: rgba(248, 243, 236, 0.94);
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(1.4rem, 3vw, 2.2rem);
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.privacy {
  padding: 34px 0 0;
}

.section-heading {
  margin-bottom: 24px;
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.trust-grid article {
  padding: 24px;
  border: 1px solid rgba(21, 18, 15, 0.08);
  border-radius: var(--radius-lg);
  background: var(--panel);
  backdrop-filter: blur(18px);
  box-shadow: 0 18px 42px rgba(57, 45, 31, 0.05);
}

.legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 24px;
  color: var(--accent);
  font-weight: 700;
}

.final-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: 28px;
  padding: 30px 32px;
  border: 1px solid rgba(21, 18, 15, 0.08);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at top right, rgba(43, 95, 228, 0.1), transparent 28%),
    rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(18px);
  box-shadow: 0 18px 42px rgba(57, 45, 31, 0.05);
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 22px;
  color: rgba(21, 18, 15, 0.56);
  font-size: 0.94rem;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 620ms cubic-bezier(0.2, 0.9, 0.2, 1),
    transform 620ms cubic-bezier(0.2, 0.9, 0.2, 1);
  transition-delay: var(--reveal-delay, 0ms);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1040px) {
  .topbar,
  .hero,
  .trust-grid,
  .final-cta {
    grid-template-columns: 1fr;
  }

  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .topbar-links {
    flex-wrap: wrap;
  }

  .hero {
    gap: 34px;
  }

  .hero-stage {
    min-height: 520px;
  }

  .device-frame {
    inset: 56px 0 0;
  }

  .feature-row {
    grid-template-columns: 80px 1fr;
  }

  .feature-copy {
    grid-column: 2 / -1;
  }

  .feature-aside {
    grid-column: 2 / -1;
    justify-self: start;
  }
}

@media (max-width: 720px) {
  .page-shell {
    width: min(calc(100% - 20px), var(--max-width));
    padding-top: 12px;
  }

  .hero {
    padding-top: 36px;
  }

  .hero h1 {
    font-size: clamp(2.7rem, 13vw, 4.8rem);
  }

  .hero-stage {
    min-height: auto;
    padding-top: 54px;
  }

  .device-frame {
    position: relative;
    inset: auto;
    transform: none;
  }

  .hero-badge {
    top: 0;
    right: 0;
    left: auto;
    max-width: calc(100% - 20px);
    font-size: 0.84rem;
  }

  .matrix-grid {
    grid-template-columns: 1fr;
  }

  .feature-row {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 22px 0;
  }

  .feature-copy,
  .feature-aside {
    grid-column: auto;
  }

  .statement,
  .final-cta {
    padding: 24px 20px;
  }

  .final-cta {
    align-items: flex-start;
  }

  .footer {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}