:root{--build-id:"33bdaf9e-1f71-46a3-9813-849178522e01";}
/* Reset & Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #18181b;
  --bg: #fafafa;
  --text: #09090b;
  --accent: #52525b;
  --heading: var(--text);
  --link: var(--text);
}

body {
  font-family: system-ui, "Noto Sans KR", "Malgun Gothic", -apple-system, "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  font-weight: 400;
  letter-spacing: 0em;
  background: var(--bg);
  color: var(--text);
}

/* Skip Link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: #000;
  color: #fff;
  padding: 8px 16px;
  text-decoration: none;
  z-index: 100;
}

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

/* Header - N13: 상단 투명 + 좌측 메뉴 + 중앙 로고 + 우측 CTA */
header {
  background: rgba(250, 250, 250, 0.95);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(8px);
}

.header-container {
  max-width: 1500px;
  margin: 0 auto;
  padding: 1.25rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
  order: 2;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

nav {
  order: 1;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 2rem;
  align-items: center;
}

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

nav a:hover,
nav a[aria-current="page"] {
  color: var(--accent);
}

.header-cta {
  order: 3;
}

.cta-button {
  border-bottom: 2px solid var(--primary);
  background: transparent;
  padding: 0.5rem 0;
  font-weight: 500;
  color: var(--primary);
  text-decoration: none;
  transition: all 0.3s;
  display: inline-block;
}

.cta-button:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.menu-checkbox {
  display: none;
}

.menu-toggle {
  display: none;
  font-size: 1.75rem;
  cursor: pointer;
  order: 3;
}

@media (max-width: 768px) {
  .logo {
    position: static;
    transform: none;
    order: 1;
  }

  nav {
    position: fixed;
    top: 0;
    left: -100%;
    width: 80%;
    height: 100vh;
    background: var(--bg);
    transition: left 0.3s;
    padding: 5rem 2rem;
    order: 2;
  }

  .menu-checkbox:checked ~ nav {
    left: 0;
  }

  nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 2rem;
  }

  .menu-toggle {
    display: block;
  }

  .header-cta {
    display: none;
  }
}

/* Container */
.container {
  max-width: 1500px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Section Spacing - S05 */
section {
  padding: 7rem 0;
}

section > * + * {
  margin-top: 5rem;
}

/* Typography - H18 */
h1 {
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: 0.005em;
  color: var(--heading);
  margin-bottom: 1.5rem;
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.2rem);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: 0.005em;
  color: var(--heading);
  margin-bottom: 1.25rem;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 1.875rem);
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: 0.005em;
  color: var(--heading);
  margin-bottom: 1rem;
}

p {
  margin-bottom: 1rem;
}

a {
  color: var(--link);
}

/* Hero Section */
.hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, rgba(24, 24, 27, 0.05) 0%, rgba(250, 250, 250, 0) 100%);
}

.hero-content {
  max-width: 800px;
}

.hero-content p {
  font-size: 1.125rem;
  margin-bottom: 2rem;
  color: var(--accent);
}

/* Card Style - K18 */
.card {
  background: transparent;
  border-left: 3px solid var(--primary);
  padding: 1.5rem 0 1.5rem 1.5rem;
  margin-bottom: 2rem;
}

.card h3 {
  margin-bottom: 0.75rem;
}

/* Grid Layout */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 3rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 3rem;
}

/* Step Guide */
.step {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.step-number {
  flex-shrink: 0;
  width: 3rem;
  height: 3rem;
  background: var(--primary);
  color: var(--bg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.25rem;
}

.step-content h3 {
  margin-top: 0;
}

/* Review/Testimonial */
.review {
  background: transparent;
  border-left: 3px solid var(--accent);
  padding: 2rem 0 2rem 2rem;
  margin-bottom: 2rem;
}

.review-author {
  font-weight: 600;
  margin-top: 1rem;
  color: var(--accent);
}

/* FAQ */
.faq-item {
  margin-bottom: 2.5rem;
}

.faq-question {
  font-weight: 600;
  color: var(--heading);
  margin-bottom: 0.75rem;
  font-size: 1.125rem;
}

.faq-answer {
  color: var(--text);
  padding-left: 1.5rem;
  border-left: 3px solid var(--accent);
}

/* Footer */
footer {
  background: var(--primary);
  color: var(--bg);
  padding: 4rem 0 2rem;
  margin-top: 7rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-section h3 {
  color: var(--bg);
  margin-bottom: 1rem;
}

.footer-section a {
  color: rgba(250, 250, 250, 0.8);
  text-decoration: none;
  display: block;
  margin-bottom: 0.5rem;
  transition: color 0.3s;
}

.footer-section a:hover {
  color: var(--bg);
}

.footer-bottom {
  border-top: 1px solid rgba(250, 250, 250, 0.2);
  padding-top: 2rem;
  text-align: center;
  color: rgba(250, 250, 250, 0.7);
}

/* Contact Info */
.contact-info {
  background: transparent;
  border-left: 3px solid var(--primary);
  padding: 2rem 0 2rem 2rem;
  margin-bottom: 2rem;
}

.contact-info p {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.contact-info span {
  font-size: 1.25rem;
}

/* SVG Container */
.svg-container {
  margin: 3rem 0;
  display: flex;
  justify-content: center;
}

.svg-container svg {
  max-width: 100%;
  height: auto;
}

/* Doc Container (Privacy/Terms) */
.doc-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 4rem 2rem;
  text-align: center;
}

.doc-container p {
  margin-bottom: 1.5rem;
}

/* Accessibility */
a:focus-visible,
input:focus-visible,
label:focus-visible {
  outline: 3px solid #0066cc;
  outline-offset: 2px;
}

/* Utility Classes */
.text-center {
  text-align: center;
}

.mt-3 {
  margin-top: 3rem;
}

.mb-3 {
  margin-bottom: 3rem;
}

/* Responsive */
@media (max-width: 768px) {
  section {
    padding: 4rem 0;
  }

  section > * + * {
    margin-top: 3rem;
  }

  .grid,
  .grid-2 {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .hero {
    min-height: 60vh;
  }

  .step {
    flex-direction: column;
  }
}