:root {
  /*
  Design DNA (이번 생성용 – 고정)
  스타일 프리셋: Minimal Commerce Studio
  컬러 전략: Soft Gray Base + Ink Black Text + Single Accent (Teal)
  레이아웃 패턴: Centered Column + Alternating Minimal Bands
  섹션 순서 템플릿: Header → Hero → Category Overview → Mobile Game Focus → Services → About → Contact/Location → Business Info → Footer
  아이콘 스타일: Simple Geometric Line Icon (SVG, consistent radius)
  배경 패턴: Subtle Vertical Scanlines (SVG, very low contrast)
  */
  --bg: #f4f5f6;
  --bg-alt: #ffffff;
  --ink: #111416;
  --muted: #5b6166;
  --line: #d7dadd;
  --accent: #1d8f8a;
  --accent-weak: rgba(29, 143, 138, 0.12);
  --radius: 16px;
  --radius-sm: 12px;
  --shadow: 0 8px 24px rgba(17, 20, 22, 0.08);
  --max: 1120px;
  --scanlines: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='40' height='40'%3E%3Crect width='40' height='40' fill='none'/%3E%3Cline x1='0.5' y1='0' x2='0.5' y2='40' stroke='%23cfd3d6' stroke-opacity='0.25'/%3E%3C/svg%3E");
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans KR", "Noto Sans", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  letter-spacing: 0.1px;
}

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

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

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 16px;
  background: var(--accent);
  color: #fff;
  padding: 8px 12px;
  border-radius: 999px;
  z-index: 20;
}

.skip-link:focus {
  top: 16px;
}

.container {
  width: min(100% - 32px, var(--max));
  margin: 0 auto;
}

.band {
  padding: 96px 0;
  position: relative;
}

.band-alt {
  background: var(--bg-alt);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-header {
  margin-bottom: 40px;
}

.section-header h2 {
  margin: 0 0 8px;
  font-size: clamp(1.6rem, 2vw + 1rem, 2.4rem);
}

.sub {
  color: var(--muted);
  max-width: 720px;
}

.site-header {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
}

.logo {
  width: 36px;
  height: 36px;
}

.brand-name {
  font-size: 1rem;
  letter-spacing: 0.2px;
}

.site-nav {
  display: flex;
  gap: 18px;
  font-size: 0.95rem;
}

.site-nav a {
  position: relative;
  padding-bottom: 4px;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.2s ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  width: 100%;
}

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 10px;
}

.menu-bar {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--ink);
  margin: 4px 0;
}

.hero {
  background: var(--bg);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: var(--scanlines);
  opacity: 0.4;
  pointer-events: none;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 48px;
  align-items: center;
}

.eyebrow {
  color: var(--accent);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 0.8rem;
  margin: 0 0 8px;
}

.hero h1 {
  font-size: clamp(2.2rem, 3vw + 1.2rem, 3.4rem);
  margin: 0 0 16px;
}

.lead {
  color: var(--muted);
  max-width: 520px;
}

.cta-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 10px 20px rgba(29, 143, 138, 0.2);
}

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

.btn-ghost {
  border-color: var(--line);
  background: #fff;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.cat-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  background: #fff;
  text-align: left;
  display: grid;
  gap: 6px;
  cursor: pointer;
}

.cat-card.is-active {
  border-color: var(--accent);
  background: var(--accent-weak);
}

.cat-title {
  font-weight: 600;
}

.tag {
  display: inline-flex;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: 0.75rem;
  color: var(--muted);
  width: fit-content;
}

.item-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.item-card {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #fff;
}

.item-tag {
  display: inline-block;
  margin-top: 10px;
  font-size: 0.8rem;
  color: var(--accent);
}

.focus-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.focus-card {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.project-list {
  display: grid;
  gap: 16px;
}

.project-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  background: #fff;
}

.project-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.toggle-details {
  border: 1px solid var(--line);
  background: #fff;
  padding: 6px 12px;
  border-radius: 999px;
  cursor: pointer;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 16px;
}

.service-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  background: #fff;
  display: grid;
  gap: 8px;
}

.icon {
  width: 32px;
  height: 32px;
  stroke: var(--ink);
  fill: none;
  stroke-width: 1.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.about-grid ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}

.about-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.note {
  color: var(--muted);
}

.info-list {
  margin-top: 16px;
  display: grid;
  gap: 10px;
}

.label {
  display: block;
  font-size: 0.8rem;
  color: var(--muted);
}

.placeholder {
  display: inline-flex;
  padding: 4px 10px;
  border-radius: 999px;
  background: #f0f2f3;
  color: var(--muted);
  font-size: 0.8rem;
}

.contact-form {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  background: #fff;
  display: grid;
  gap: 12px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  font-family: inherit;
}

.form-status {
  color: var(--muted);
  min-height: 20px;
}

.business-grid {
  display: grid;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  background: #fff;
}

.business-grid div {
  display: grid;
  gap: 4px;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #fff;
  padding: 24px 0;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  justify-content: space-between;
  font-size: 0.9rem;
  color: var(--muted);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

@media (max-width: 900px) {
  .site-nav {
    position: absolute;
    top: 72px;
    right: 16px;
    flex-direction: column;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 12px;
    box-shadow: var(--shadow);
    width: min(240px, 80vw);
    display: none;
  }

  .site-nav.is-open {
    display: flex;
  }

  .menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
}

@media (max-width: 640px) {
  .band {
    padding: 72px 0;
  }

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

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}