:root{--build-id:"f8e664e5-2a40-4176-a625-f923aec18e51";}
/* Reset & Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #10b981;
  --bg: #f0fdf4;
  --text: #064e3b;
  --accent: #34d399;
  --heading: var(--text);
  --link: var(--text);
  --border: #e5e7eb;
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--heading);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.015em;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  margin-bottom: 1.5rem;
}

h2 {
  font-size: clamp(1.5rem, 4vw, 2.44rem);
  margin-bottom: 1.25rem;
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.83rem);
  margin-bottom: 1rem;
}

a {
  color: var(--link);
  text-decoration: none;
  transition: opacity 0.2s;
}

a:hover {
  opacity: 0.8;
}

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

.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;
}

/* Container */
.container {
  max-width: 1450px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Header */
header {
  background: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-container {
  max-width: 1450px;
  margin: 0 auto;
  padding: 1.5rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
}

.logo svg {
  color: var(--primary);
}

nav ul {
  display: flex;
  gap: 2.5rem;
  list-style: none;
  align-items: center;
}

nav a {
  font-weight: 500;
  color: var(--text);
  padding: 0.5rem 0;
}

nav a[aria-current="page"] {
  color: var(--primary);
  font-weight: 700;
}

.nav-cta {
  padding: 0.75rem 1.5rem;
  background: var(--primary);
  color: white;
  border-radius: 0;
  font-weight: 700;
}

.menu-checkbox {
  display: none;
}

.menu-toggle {
  display: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--primary);
}

/* Hero Section - Soft style (L23) */
.hero-soft {
  padding: 6.5rem 0;
  background: linear-gradient(to bottom, rgba(16, 185, 129, 0.05), transparent);
}

.hero-soft .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4.5rem;
  align-items: center;
}

.hero-content h1 {
  margin-bottom: 1.5rem;
}

.hero-subtitle {
  font-size: 1.125rem;
  line-height: 1.8;
  margin-bottom: 2rem;
  color: #065f46;
}

.hero-actions {
  display: flex;
  gap: 1rem;
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Buttons (B05: square, bold) */
.btn {
  display: inline-block;
  border-radius: 0;
  padding: 1.25rem 3rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  transition: all 0.2s;
  text-align: center;
}

.btn-primary {
  background: var(--primary);
  color: white;
  border: none;
}

.btn-primary:hover {
  background: #059669;
  opacity: 1;
}

.btn-secondary {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-secondary:hover {
  background: var(--primary);
  color: white;
  opacity: 1;
}

/* Sections */
section {
  padding: 6.5rem 0;
}

.page-header {
  padding: 4rem 0 2rem;
  text-align: center;
  background: linear-gradient(to bottom, rgba(16, 185, 129, 0.08), transparent);
}

.page-subtitle {
  font-size: 1.125rem;
  color: #065f46;
  margin-top: 1rem;
}

.content-section {
  background: white;
}

/* List Grid (for index features) */
.features-list {
  background: white;
}

.features-list h2 {
  text-align: center;
  margin-bottom: 3rem;
}

.list-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 4.5rem;
}

.list-item {
  text-align: left;
}

.list-icon {
  font-size: 3rem;
  display: block;
  margin-bottom: 1rem;
}

.list-item h3 {
  margin-bottom: 1rem;
}

.list-item p {
  color: #065f46;
  line-height: 1.7;
}

/* Comparison Section (K05 card style) */
.comparison-section {
  background: rgba(240, 253, 244, 0.5);
}

.comparison-section h2 {
  text-align: center;
  margin-bottom: 1.5rem;
}

.section-intro {
  text-align: center;
  margin-bottom: 3rem;
  font-size: 1.125rem;
  color: #065f46;
}

.comparison-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 4.5rem;
}

.comparison-card {
  border: 2px solid var(--border);
  border-radius: 0.5rem;
  padding: 2rem;
  background: white;
}

.comparison-card h3 {
  text-align: center;
  margin-bottom: 1.5rem;
  color: var(--primary);
}

.comparison-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.compare-item strong {
  display: block;
  font-size: 1.125rem;
  margin-bottom: 0.75rem;
  color: var(--heading);
}

.compare-item ul {
  list-style: none;
  padding-left: 0;
}

.compare-item li {
  padding: 0.5rem 0;
  border-bottom: 1px solid #f0fdf4;
}

.compare-item li:last-child {
  border-bottom: none;
}

/* Info Grid */
.info-section {
  background: white;
}

.info-section h2 {
  text-align: center;
  margin-bottom: 3rem;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 4.5rem;
}

.info-card {
  text-align: center;
  border: 2px solid var(--border);
  border-radius: 0.5rem;
  padding: 2rem;
}

.info-number {
  display: inline-block;
  font-size: 3rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 1rem;
}

.info-card h3 {
  margin-bottom: 1rem;
}

.info-card p {
  color: #065f46;
  line-height: 1.7;
}

/* CTA Inline */
.cta-inline {
  background: var(--primary);
  color: white;
}

.cta-content {
  text-align: center;
}

.cta-content h2 {
  color: white;
  margin-bottom: 1rem;
}

.cta-content p {
  font-size: 1.125rem;
  margin-bottom: 2rem;
  color: rgba(255, 255, 255, 0.95);
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

.cta-inline .btn-primary {
  background: white;
  color: var(--primary);
}

.cta-inline .btn-primary:hover {
  background: rgba(255, 255, 255, 0.9);
}

.cta-inline .btn-secondary {
  background: transparent;
  color: white;
  border: 2px solid white;
}

.cta-inline .btn-secondary:hover {
  background: white;
  color: var(--primary);
}

/* Content Wrapper */
.content-wrapper {
  margin-bottom: 4.5rem;
}

.content-wrapper:last-child {
  margin-bottom: 0;
}

.content-wrapper h2 {
  margin-bottom: 1.5rem;
}

.content-wrapper p {
  margin-bottom: 1.25rem;
  line-height: 1.8;
  color: #065f46;
}

.content-wrapper p:last-child {
  margin-bottom: 0;
}

/* Guide specific */
.guide-intro,
.method-intro,
.tips-intro {
  margin-bottom: 3rem;
  text-align: center;
}

.guide-intro h2,
.method-intro h2,
.tips-intro h2 {
  margin-bottom: 1.5rem;
}

.guide-intro p,
.method-intro p,
.tips-intro p {
  font-size: 1.125rem;
  color: #065f46;
}

.size-guide {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 4.5rem;
  margin-top: 2rem;
}

.size-card {
  border: 2px solid var(--border);
  border-radius: 0.5rem;
  padding: 2rem;
  background: white;
}

.size-card h3 {
  margin-bottom: 1rem;
  color: var(--primary);
}

.size-card p {
  margin-bottom: 0.75rem;
  line-height: 1.7;
}

.size-card strong {
  font-size: 1.125rem;
  color: var(--heading);
}

/* Checklist */
.quality-checklist {
  margin-top: 2rem;
}

.checklist-item {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 2rem;
  align-items: flex-start;
}

.check-icon {
  font-size: 1.5rem;
  color: var(--primary);
  flex-shrink: 0;
}

.check-content h3 {
  margin-bottom: 0.75rem;
  color: var(--primary);
}

.check-content p {
  color: #065f46;
  line-height: 1.7;
}

/* Step sections */
.step-section {
  margin-bottom: 3rem;
  padding: 2rem;
  background: rgba(240, 253, 244, 0.5);
  border-radius: 0.5rem;
}

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

.step-section p {
  margin-bottom: 1rem;
  line-height: 1.8;
  color: #065f46;
}

.step-section p:last-child {
  margin-bottom: 0;
}

/* Problem Solution */
.problem-solution {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 4.5rem;
  margin-top: 2rem;
}

.problem-card {
  border: 2px solid var(--border);
  border-radius: 0.5rem;
  padding: 2rem;
  background: white;
}

.problem-card h3 {
  margin-bottom: 1rem;
  color: var(--primary);
}

.problem-card p {
  color: #065f46;
  line-height: 1.7;
}

/* Tips Grid */
.tips-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 4.5rem;
  margin-top: 3rem;
}

.tip-card {
  border: 2px solid var(--border);
  border-radius: 0.5rem;
  padding: 2rem;
  background: white;
}

.tip-icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 1rem;
}

.tip-card h3 {
  margin-bottom: 1rem;
  color: var(--primary);
}

.tip-card p {
  color: #065f46;
  line-height: 1.7;
}

/* Contact */
.contact-wrapper {
  max-width: 900px;
  margin: 0 auto;
}

.contact-intro {
  text-align: center;
  margin-bottom: 3rem;
}

.contact-intro h2 {
  margin-bottom: 1rem;
}

.contact-intro p {
  font-size: 1.125rem;
  color: #065f46;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 4.5rem;
  margin-bottom: 4.5rem;
}

.contact-card {
  text-align: center;
  border: 2px solid var(--border);
  border-radius: 0.5rem;
  padding: 2rem;
  background: white;
}

.contact-icon {
  font-size: 3rem;
  display: block;
  margin-bottom: 1rem;
  color: var(--primary);
}

.contact-card h3 {
  margin-bottom: 1rem;
  color: var(--primary);
}

.contact-card p {
  margin-bottom: 0.75rem;
  font-weight: 600;
  font-size: 1.125rem;
}

.contact-detail {
  font-size: 0.95rem;
  font-weight: 400;
  color: #065f46;
  line-height: 1.6;
}

.contact-info {
  background: rgba(240, 253, 244, 0.5);
  padding: 2rem;
  border-radius: 0.5rem;
  margin-bottom: 3rem;
}

.contact-info h3 {
  margin-bottom: 1.5rem;
  color: var(--primary);
}

.faq-list {
  list-style: none;
}

.faq-list li {
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
  line-height: 1.7;
  color: #065f46;
}

.faq-list li:last-child {
  border-bottom: none;
}

.faq-list strong {
  color: var(--heading);
  font-weight: 600;
}

.contact-note {
  background: white;
  padding: 2rem;
  border: 2px solid var(--border);
  border-radius: 0.5rem;
}

.contact-note h3 {
  margin-bottom: 1rem;
  color: var(--primary);
}

.contact-note p {
  margin-bottom: 1rem;
  color: #065f46;
  line-height: 1.7;
}

.contact-note ul {
  list-style: disc;
  padding-left: 1.5rem;
}

.contact-note li {
  padding: 0.5rem 0;
  color: #065f46;
  line-height: 1.7;
}

/* Footer */
footer {
  background: var(--text);
  color: white;
  padding: 3rem 0 1.5rem;
}

.footer-container {
  max-width: 1450px;
  margin: 0 auto;
  padding: 0 2rem;
}

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

.footer-section h3 {
  color: white;
  margin-bottom: 1rem;
  font-size: 1.125rem;
}

.footer-section p {
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.6;
  margin-bottom: 0.5rem;
}

.footer-section ul {
  list-style: none;
}

.footer-section li {
  margin-bottom: 0.5rem;
}

.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  transition: color 0.2s;
}

.footer-section a:hover {
  color: white;
  opacity: 1;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.875rem;
}

.footer-links {
  display: flex;
  gap: 2rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.875rem;
}

.footer-links a:hover {
  color: white;
  opacity: 1;
}

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

.doc-container h1 {
  margin-bottom: 2rem;
}

.doc-container p {
  margin-bottom: 1.5rem;
  line-height: 1.8;
  color: #065f46;
}

.doc-container a {
  color: var(--primary);
  font-weight: 600;
}

/* Responsive */
@media (max-width: 768px) {
  .header-container {
    padding: 1rem 1.5rem;
  }

  .menu-toggle {
    display: block;
  }

  nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border-bottom: 1px solid var(--border);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s;
  }

  .menu-checkbox:checked ~ nav {
    max-height: 500px;
  }

  nav ul {
    flex-direction: column;
    gap: 0;
    padding: 1rem 0;
  }

  nav li {
    width: 100%;
    text-align: center;
  }

  nav a {
    display: block;
    padding: 1rem 2rem;
  }

  .nav-cta {
    margin: 0.5rem 1.5rem;
    display: inline-block;
  }

  .hero-soft .container {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .hero-visual {
    order: -1;
  }

  .hero-actions {
    flex-direction: column;
  }

  .comparison-content {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .list-grid,
  .comparison-grid,
  .info-grid,
  .tips-grid,
  .contact-grid,
  .size-guide,
  .problem-solution {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  section {
    padding: 3rem 0;
  }

  .container {
    padding: 0 1.5rem;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .footer-links {
    flex-direction: column;
    gap: 0.5rem;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.75rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  h3 {
    font-size: 1.25rem;
  }

  .btn {
    padding: 1rem 2rem;
    font-size: 0.95rem;
  }

  .hero-soft {
    padding: 3rem 0;
  }

  .page-header {
    padding: 2rem 0 1rem;
  }
}