:root{--build-id:"30dec7e2-4c09-4229-b84f-572514a53ef9";}
/* Reset & Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Segoe UI Variable", "Malgun Gothic", "Noto Sans KR", Arial, system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  font-weight: 400;
  letter-spacing: 0em;
  color: #1a1a1a;
  background: #fafafa;
}

/* Skip Link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: #7c3aed;
  color: #fff;
  padding: 8px 16px;
  text-decoration: none;
  z-index: 100;
}

.skip-link:focus {
  top: 0;
}

/* Layout L04: 비대칭 그리드 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.grid-asymmetric {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
  margin: 40px 0;
}

.grid-reverse {
  grid-template-columns: 1fr 2fr;
}

/* Color C13: 보라-핑크 조합 */
:root {
  --primary: #7c3aed;
  --secondary: #ec4899;
  --accent: #f59e0b;
  --bg-light: #faf5ff;
  --text-dark: #1a1a1a;
  --border: #e9d5ff;
}

/* Typography T07: 중간 자간 */
h1,
h2,
h3,
h4,
h5,
h6 {
  letter-spacing: 0.02em;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.3;
}

/* Heading H07: clamp 반응형 */
h1 {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
}

h2 {
  font-size: clamp(1.76rem, 3.2vw, 2.56rem);
}

h3 {
  font-size: clamp(1.408rem, 2.56vw, 2.048rem);
}

p {
  margin: 16px 0;
  letter-spacing: 0.02em;
}

/* Navigation N07: 중앙 정렬 */
header {
  background: #fff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  position: sticky;
  top: 0;
  z-index: 50;
}

nav {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
  gap: 40px;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
  position: absolute;
  left: 20px;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 32px;
}

nav a {
  text-decoration: none;
  color: var(--text-dark);
  font-weight: 500;
  transition: color 0.3s;
  padding: 8px 0;
}

nav a:hover,
nav a:focus {
  color: var(--primary);
  outline: 2px solid var(--primary);
  outline-offset: 4px;
}

nav a[aria-current="page"] {
  color: var(--primary);
  border-bottom: 2px solid var(--primary);
}

/* Button B07: 라운드 그라데이션 */
.btn {
  display: inline-block;
  padding: 14px 32px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  text-decoration: none;
  border-radius: 50px;
  font-weight: 600;
  transition: transform 0.3s, box-shadow 0.3s;
  border: none;
  cursor: pointer;
}

.btn:hover,
.btn:focus {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(124, 58, 237, 0.3);
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* Card K07: 그림자 호버 */
.card {
  background: #fff;
  border-radius: 12px;
  padding: 28px;
  transition: box-shadow 0.3s, transform 0.3s;
  border: 1px solid var(--border);
}

.card:hover {
  box-shadow: 0 12px 32px rgba(124, 58, 237, 0.15);
  transform: translateY(-4px);
}

/* Section S07: 지그재그 */
.section {
  padding: 80px 0;
}

.section:nth-child(even) {
  background: var(--bg-light);
}

.section-zigzag {
  display: flex;
  align-items: center;
  gap: 60px;
  margin: 40px 0;
}

.section-zigzag:nth-child(even) {
  flex-direction: row-reverse;
}

.section-content {
  flex: 1;
}

.section-visual {
  flex: 1;
}

/* Timeline (CS07) */
.timeline {
  position: relative;
  padding-left: 40px;
  margin: 40px 0;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--primary), var(--secondary));
}

.timeline-item {
  position: relative;
  margin-bottom: 40px;
  padding-left: 20px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -47px;
  top: 0;
  width: 16px;
  height: 16px;
  background: var(--primary);
  border-radius: 50%;
  border: 3px solid #fff;
  box-shadow: 0 0 0 3px var(--border);
}

.timeline-label {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 12px;
}

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--bg-light), #fff);
  padding: 100px 0;
  text-align: center;
}

.hero h1 {
  margin-bottom: 24px;
  color: var(--primary);
}

.hero p {
  font-size: 1.2rem;
  color: #555;
  max-width: 700px;
  margin: 0 auto 32px;
}

/* Icons */
.icon {
  display: inline-block;
  margin-right: 8px;
  font-size: 1.2em;
}

/* Footer */
footer {
  background: var(--text-dark);
  color: #fff;
  padding: 60px 0 30px;
  margin-top: 80px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-section h3 {
  color: #fff;
  margin-bottom: 20px;
  font-size: 1.2rem;
}

.footer-section p,
.footer-section a {
  color: #ccc;
  text-decoration: none;
  display: block;
  margin: 8px 0;
}

.footer-section a:hover,
.footer-section a:focus {
  color: var(--secondary);
  outline: 2px solid var(--secondary);
  outline-offset: 2px;
}

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid #444;
  color: #999;
}

/* SVG Illustrations */
.svg-illustration {
  width: 100%;
  max-width: 400px;
  height: auto;
  margin: 20px auto;
  display: block;
}

/* Responsive */
@media (max-width: 768px) {
  .grid-asymmetric,
  .grid-reverse {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  nav {
    flex-direction: column;
    gap: 20px;
  }

  .logo {
    position: static;
    margin-bottom: 10px;
  }

  nav ul {
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
  }

  .section-zigzag {
    flex-direction: column !important;
  }

  .hero {
    padding: 60px 0;
  }

  .timeline {
    padding-left: 30px;
  }

  .timeline-item::before {
    left: -37px;
  }
}

/* Accessibility */
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

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