:root {
  --bg: #fafbfc;
  --text: #0f172a;
  --muted: #64748b;
  --accent: #0f172a;
  --accent-hover: #1e293b;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family:
    'Pretendard',
    -apple-system,
    BlinkMacSystemFont,
    system-ui,
    sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.5;
}

.page {
  min-height: 100vh;
  min-height: 100svh;
}

.hero {
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: space-between;
  padding: 3rem 1.5rem 0;
  text-align: center;
}

.hero-inner {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  min-height: 0;
}

.hero-logo {
  height: 2rem;
  width: auto;
  opacity: 0.85;
}

.hero-title {
  margin: 0;
  font-size: clamp(4rem, 15vw, 7rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1;
  color: var(--text);
}

.hero-tagline {
  margin: 0;
  max-width: 22rem;
  font-size: clamp(0.9375rem, 2.8vw, 1.125rem);
  font-weight: 500;
  color: var(--muted);
  letter-spacing: -0.01em;
  line-height: 1.35;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

@media (min-width: 480px) {
  .hero-actions {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  font-size: 0.9375rem;
  font-weight: 500;
  font-family: inherit;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: 9999px;
  text-decoration: none;
  cursor: pointer;
  transition:
    background 0.2s ease,
    transform 0.15s ease;
}

.btn:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn-outline {
  color: var(--text);
  background: transparent;
  border: 1px solid rgba(15, 23, 42, 0.15);
}

.btn-outline:hover {
  background: rgba(15, 23, 42, 0.04);
  border-color: rgba(15, 23, 42, 0.25);
}

.site-footer {
  flex-shrink: 0;
  padding: 1.5rem 0;
}

.site-footer p {
  margin: 0;
  font-size: 0.75rem;
  color: var(--muted);
  text-align: center;
  letter-spacing: 0.02em;
}

@media (min-width: 640px) {
  .hero-logo {
    height: 2.25rem;
  }
}