:root {
  --bg: #fafafa;
  --bg-2: #ffffff;
  --ink: #111111;
  --muted: #6b6b6b;
  --line: #e5e5e5;
  --max: 900px;
  --display: "Black Han Sans", "Apple SD Gothic Neo", sans-serif;
  --body: "Noto Sans KR", "Apple SD Gothic Neo", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--body);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
}

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

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

.skip {
  position: absolute;
  left: -9999px;
}

.skip:focus {
  left: 12px;
  top: 12px;
  z-index: 100;
  background: var(--ink);
  color: #fff;
  padding: 8px 12px;
}

.wrap {
  width: min(var(--max), calc(100% - 40px));
  margin-inline: auto;
}

.wrap.narrow {
  width: min(560px, calc(100% - 40px));
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 250, 250, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 2px solid var(--ink);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 60px;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--display);
  font-size: 1.35rem;
}

.brand img {
  border-radius: 10px;
  border: 2px solid var(--ink);
}

.nav {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav a {
  padding: 8px 11px;
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--muted);
}

.nav a:hover {
  color: var(--ink);
}

.nav-cta {
  margin-left: 6px;
  color: #fff !important;
  background: var(--ink);
  border-radius: 999px;
  padding: 8px 14px !important;
}

.hero {
  padding: 64px 0 72px;
  border-bottom: 2px solid var(--ink);
}

.hero-grid {
  display: grid;
  gap: 36px;
  align-items: center;
}

@media (min-width: 860px) {
  .hero-grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 48px;
  }
}

.hero h1 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(3rem, 10vw, 4.8rem);
  line-height: 1.05;
  font-weight: 400;
}

.lede {
  margin: 14px 0 0;
  font-size: 1.1rem;
  color: var(--muted);
  font-weight: 600;
}

.hero-actions {
  margin-top: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 0.98rem;
  border: 2px solid var(--ink);
  background: var(--ink);
  color: #fff;
  transition: transform 0.15s ease, background 0.15s ease;
}

.btn:hover {
  transform: translateY(-2px);
  background: #000;
}

.hero-panel {
  min-height: 220px;
  background: var(--ink);
  color: #fff;
  border-radius: 28px;
  border: 2px solid var(--ink);
  padding: 28px;
  display: grid;
  align-items: end;
  box-shadow: 8px 8px 0 #d4d4d4;
}

.hero-panel-text {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  line-height: 1;
}

.section {
  padding: 64px 0;
}

.section.quiet {
  background: var(--bg-2);
  border-block: 2px solid var(--line);
}

.section h2 {
  margin: 0 0 16px;
  font-family: var(--display);
  font-size: clamp(1.7rem, 4vw, 2.2rem);
  font-weight: 400;
  line-height: 1.25;
}

.section p {
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
  font-weight: 500;
}

.product-card {
  padding: 22px;
  background: #fff;
  border: 2px solid var(--ink);
  border-radius: 18px;
  box-shadow: 4px 4px 0 var(--ink);
}

.product-card h3 {
  margin: 0 0 10px;
  font-family: var(--display);
  font-size: 1.45rem;
  font-weight: 400;
}

.product-card h3 em {
  font-style: normal;
  font-family: var(--body);
  font-size: 0.72em;
  font-weight: 700;
  color: var(--muted);
  margin-left: 6px;
}

.product-card p {
  margin: 0;
  font-size: 0.98rem;
}

.mail-btn {
  display: inline-flex;
  margin-top: 4px;
  padding: 16px 22px;
  background: var(--ink);
  color: #fff !important;
  font-size: 1.05rem;
  font-weight: 800;
  border-radius: 999px;
  border: 2px solid #000;
  box-shadow: 4px 4px 0 #d4d4d4;
}

.mail-btn:hover {
  background: #000;
}

.site-footer {
  padding: 28px 0 36px;
  border-top: 2px solid var(--ink);
  color: var(--muted);
}

.footer-inner {
  display: grid;
  gap: 10px;
}

.footer-brand {
  margin: 0;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--ink);
}

.footer-legal {
  margin: 0;
  font-size: 0.75rem;
  line-height: 1.7;
  font-weight: 500;
  color: #8a8a8a;
}

.footer-legal a {
  color: #8a8a8a;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.45s ease, transform 0.45s ease;
}

.reveal.in {
  opacity: 1;
  transform: none;
}

@media (max-width: 820px) {
  .nav a:not(.nav-cta) {
    display: none;
  }

  .hero {
    padding-top: 40px;
  }
}

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

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}