:root {
  --color-bg: #ffffff;
  --color-fg: #111111;
  --color-muted: #888888;
  --color-line: #ececec;

  --font-sans: "Wanted Sans Variable", "Wanted Sans",
               -apple-system, BlinkMacSystemFont, system-ui,
               "Segoe UI", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;

  --max-width: 880px;
  --gutter: 32px;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-weight: 400;
  font-feature-settings: "ss01", "ss02";
  color: var(--color-fg);
  background: var(--color-bg);
  letter-spacing: -0.01em;
  padding-top: 64px;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: saturate(180%) blur(8px);
  -webkit-backdrop-filter: saturate(180%) blur(8px);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo {
  font-size: 18px;
  font-weight: 500;
  letter-spacing: -0.02em;
}
.site-nav ul {
  display: flex;
  gap: 28px;
}
.site-nav a {
  font-size: 14px;
  font-weight: 400;
  color: var(--color-muted);
  transition: color 0.2s ease;
}
.site-nav a:hover { color: var(--color-fg); }

/* Intro */
.intro {
  padding: 140px 0 96px;
}
.intro h1 {
  font-size: clamp(56px, 9vw, 112px);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.04em;
  min-height: 1.1em;
}
.hero-caret {
  display: inline-block;
  width: 0.06em;
  height: 0.85em;
  margin-left: 0.04em;
  vertical-align: -0.1em;
  background: currentColor;
  animation: caretBlink 1s step-end infinite;
}
@keyframes caretBlink {
  50% { opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .hero-caret { display: none; }
}
.intro-sub {
  margin-top: 20px;
  font-size: 15px;
  color: var(--color-muted);
  letter-spacing: 0;
}

/* Section */
.section {
  padding: 88px 0;
}
.section-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-muted);
  letter-spacing: 0.08em;
  margin-bottom: 32px;
}
.section-body {
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-fg);
}

/* About — concept line */
.about-concept {
  font-size: clamp(20px, 2.6vw, 28px);
  font-weight: 500;
  letter-spacing: -0.01em;
  margin-bottom: 36px;
}
.about-concept-sep {
  color: var(--color-muted);
  font-weight: 400;
  margin: 0 0.35em;
}

/* Works grid — 3x3, 3:4 portrait, 모바일에서도 3열 유지 */
.works-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
}
.works-item {
  aspect-ratio: 3 / 4;
  background: #ececec;
}

/* Services list — 번호 + 제목/카테고리/설명 */
.services-list {
  border-top: 1px solid var(--color-line);
}
.service-item {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid var(--color-line);
}
.service-num {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-muted);
  letter-spacing: 0.04em;
  padding-top: 6px;
}
.service-title {
  font-size: 20px;
  font-weight: 500;
  letter-spacing: -0.01em;
  margin-bottom: 10px;
}
.service-title-en {
  font-size: 0.78em;
  font-weight: 400;
  color: var(--color-muted);
  margin-left: 0.25em;
  letter-spacing: 0;
}
.service-desc {
  font-size: 16px;
  line-height: 1.6;
  margin-bottom: 10px;
}
.service-tags {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-muted);
}

/* Contact info — 라벨/값 정렬 */
.contact-info {
  margin-top: 32px;
  display: grid;
  grid-template-columns: 88px 1fr;
  row-gap: 12px;
  column-gap: 24px;
}
.contact-info dt {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-muted);
  padding-top: 2px;
}
.contact-info dd {
  font-size: 16px;
}
.contact-info a {
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}
.contact-info a:hover {
  text-decoration: underline;
}

/* Footer */
.site-footer {
  padding: 64px 0 80px;
}
.site-footer p {
  font-size: 12px;
  color: var(--color-muted);
  letter-spacing: 0;
}
.site-footer p + p {
  margin-top: 4px;
}

/* Responsive */
@media (max-width: 640px) {
  :root { --gutter: 24px; }
  body { padding-top: 56px; }
  .site-header .container { height: 56px; }
  .logo { font-size: 16px; }
  .site-nav ul { gap: 20px; }
  .site-nav a { font-size: 13px; }
  .intro { padding: 88px 0 64px; }
  .intro h1 { font-size: clamp(40px, 11vw, 56px); }
  .section { padding: 56px 0; }
  .service-item {
    grid-template-columns: 40px 1fr;
    gap: 16px;
    padding: 24px 0;
  }
  .service-title { font-size: 18px; }
  .service-desc { font-size: 15px; }
  .section-body { font-size: 15px; }
  .section-body { font-size: 16px; }
}