:root {
  color-scheme: light;
  --ink: #161616;
  --muted: #66605d;
  --line: rgba(22, 22, 22, 0.12);
  --panel: rgba(255, 255, 255, 0.74);
  --accent: #e52d27;
  --accent-dark: #b91f1b;
  --gold: #f6b351;
  --blue: #2774d8;
  --green: #218c6e;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "Inter", "Noto Sans KR", system-ui, sans-serif;
  background:
    radial-gradient(circle at 12% 16%, rgba(229, 45, 39, 0.18), transparent 25rem),
    radial-gradient(circle at 86% 18%, rgba(246, 179, 81, 0.24), transparent 26rem),
    linear-gradient(135deg, #fff7f1 0%, #f6fbff 48%, #fffdf9 100%);
}

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

.shell {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
  padding: 26px 0 48px;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 10px 0;
}

.brand,
.nav-links,
.badges {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand {
  font-weight: 800;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 34px;
  place-items: center;
  border-radius: 8px;
  color: white;
  background: var(--accent);
  font-size: 13px;
  box-shadow: 0 10px 24px rgba(229, 45, 39, 0.25);
}

.nav-links a {
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(330px, 430px);
  align-items: center;
  gap: 52px;
  min-height: calc(100vh - 92px);
  padding: 30px 0 56px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(42px, 7vw, 78px);
  line-height: 1.02;
  letter-spacing: 0;
}

.lead {
  max-width: 680px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.78;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  padding: 0 20px;
  font-weight: 800;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

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

.primary {
  color: white;
  background: var(--accent);
  box-shadow: 0 16px 34px rgba(229, 45, 39, 0.28);
}

.secondary {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.68);
}

.badges {
  flex-wrap: wrap;
  margin-top: 22px;
}

.badges span {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.62);
  color: #383432;
  font-size: 13px;
  font-weight: 800;
}

.ad-card {
  position: relative;
  overflow: hidden;
  margin: 0;
  border: 1px solid rgba(22, 22, 22, 0.1);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 30px 80px rgba(42, 30, 26, 0.18);
}

.ad-card img {
  display: block;
  width: 100%;
  aspect-ratio: 9 / 16;
  object-fit: cover;
}

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  padding: 10px 0 24px;
}

.features article,
.video-band {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.62);
  backdrop-filter: blur(16px);
}

.features article {
  min-height: 220px;
  padding: 22px;
}

.icon {
  display: inline-grid;
  width: 42px;
  height: 34px;
  place-items: center;
  border-radius: 8px;
  color: white;
  background: var(--ink);
  font-size: 13px;
  font-weight: 800;
}

.features h2,
.video-band h2 {
  margin: 28px 0 10px;
  font-size: 22px;
  letter-spacing: 0;
}

.features p,
.video-band p {
  margin: 0;
  color: var(--muted);
  line-height: 1.72;
}

.features article:nth-child(2) .icon {
  background: var(--blue);
}

.features article:nth-child(3) .icon {
  background: var(--green);
}

.features article:nth-child(4) .icon {
  background: #7a4bd8;
}

.features article:nth-child(5) .icon {
  background: var(--accent);
}

.features article:nth-child(6) .icon {
  background: #db7a21;
}

.video-band {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 22px;
  margin-top: 8px;
  padding: 28px;
}

.video-band .eyebrow {
  margin-bottom: 10px;
}

.video-band h2 {
  margin-top: 0;
}

@media (max-width: 900px) {
  .shell {
    width: min(100% - 28px, 680px);
    padding-top: 18px;
  }

  .hero,
  .features,
  .video-band {
    grid-template-columns: 1fr;
  }

  .hero {
    gap: 30px;
    min-height: auto;
    padding-top: 44px;
  }

  h1 {
    font-size: clamp(38px, 13vw, 58px);
  }

  .video-band .button {
    width: fit-content;
  }
}

@media (max-width: 560px) {
  .nav {
    align-items: flex-start;
  }

  .nav-links {
    gap: 10px;
  }

  .lead {
    font-size: 16px;
  }

  .actions,
  .button,
  .video-band .button {
    width: 100%;
  }
}