:root{--build-id:"993e6f40-e075-4877-83e5-e61572931ea4";}
/* Reset & Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #0f172a;
  --bg: #f8fafc;
  --text: #1e293b;
  --accent: #475569;
  --heading: var(--text);
  --link: var(--text);
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--heading);
  font-weight: 700;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 3.375rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.015em;
  text-shadow: 2px 2px 0 rgba(0, 0, 0, 0.1);
}

h2 {
  font-size: clamp(1.875rem, 3.75vw, 2.531rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.011em;
  margin-bottom: 1.5rem;
}

h3 {
  font-size: clamp(1.406rem, 2.813vw, 1.898rem);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.008em;
  margin-bottom: 1rem;
}

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

a:hover {
  opacity: 0.7;
}

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 {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

section {
  padding: 5rem 0;
}

/* Header & Navigation */
header {
  position: sticky;
  top: 0;
  background: var(--bg);
  border-bottom: 1px solid #e5e7eb;
  z-index: 50;
}

.header-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
}

.menu-checkbox {
  display: none;
}

.menu-toggle {
  display: none;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
}

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

nav a {
  font-weight: 500;
  padding: 0.5rem 0;
}

nav a[aria-current="page"] {
  border-bottom: 2px solid var(--primary);
  font-weight: 600;
}

@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }

  nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid #e5e7eb;
    display: none;
  }

  .menu-checkbox:checked ~ nav {
    display: block;
  }

  nav ul {
    flex-direction: column;
    padding: 1rem 2rem;
    gap: 0;
  }

  nav li {
    border-bottom: 1px solid #e5e7eb;
  }

  nav a {
    display: block;
    padding: 1rem 0;
  }
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  padding: 6rem 0;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

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

.hero-content p {
  margin-bottom: 2rem;
  font-size: 1.125rem;
  line-height: 1.75;
}

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

.hero-visual svg {
  width: 100%;
  max-width: 400px;
  height: auto;
}

@media (max-width: 768px) {
  .hero .container {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    order: -1;
  }
}

/* Buttons */
.btn {
  display: inline-block;
  border: 2px solid var(--primary);
  background: transparent;
  padding: 0.875rem 2rem;
  font-weight: 600;
  color: var(--primary);
  transition: all 0.3s;
}

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

.btn-primary {
  background: var(--primary);
  color: var(--bg);
}

.btn-primary:hover {
  background: transparent;
  color: var(--primary);
}

.btn-secondary {
  background: transparent;
  color: var(--primary);
}

/* Feature Grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-top: 3rem;
}

.feature-card {
  border-bottom: 2px solid #e5e7eb;
  padding: 2rem 0;
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

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

/* Tabs */
.tabs {
  margin-top: 2rem;
}

.tabs input[type="radio"] {
  display: none;
}

.tabs label {
  display: inline-block;
  padding: 1rem 2rem;
  margin-right: 0.5rem;
  border: 2px solid var(--primary);
  cursor: pointer;
  font-weight: 600;
  transition: all 0.3s;
}

.tabs label:hover {
  background: var(--primary);
  color: var(--bg);
}

.tabs input[type="radio"]:checked + label {
  background: var(--primary);
  color: var(--bg);
}

.tab-content {
  display: none;
  padding: 2rem 0;
}

.tabs input[type="radio"]:checked + label + .tab-content {
  display: block;
}

.tab-content p {
  margin-bottom: 1rem;
}

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

.checklist-item {
  display: flex;
  gap: 1.5rem;
  border-bottom: 2px solid #e5e7eb;
  padding: 2rem 0;
}

.check {
  font-size: 1.5rem;
  color: var(--primary);
  font-weight: 700;
  flex-shrink: 0;
}

.checklist-item strong {
  display: block;
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
}

/* CTA Sections */
.cta,
.cta-multi {
  background: var(--primary);
  color: var(--bg);
  text-align: center;
}

.cta h2,
.cta-multi h2 {
  color: var(--bg);
  margin-bottom: 1rem;
}

.cta p,
.cta-multi p {
  color: var(--bg);
  margin-bottom: 2rem;
  font-size: 1.125rem;
}

.cta .btn {
  border-color: var(--bg);
  color: var(--bg);
}

.cta .btn:hover {
  background: var(--bg);
  color: var(--primary);
}

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

.cta-buttons .btn {
  border-color: var(--bg);
  color: var(--bg);
}

.cta-buttons .btn:hover {
  background: var(--bg);
  color: var(--primary);
}

.cta-buttons .btn-primary {
  background: var(--bg);
  color: var(--primary);
}

.cta-buttons .btn-primary:hover {
  background: transparent;
  color: var(--bg);
}

/* Page Header */
.page-header {
  background: var(--primary);
  color: var(--bg);
  padding: 4rem 0;
  text-align: center;
}

.page-header h1 {
  color: var(--bg);
  margin-bottom: 1rem;
}

.page-header p {
  color: var(--bg);
  font-size: 1.125rem;
}

/* Content Sections */
.content {
  background: #fff;
}

.content p {
  margin-bottom: 1.5rem;
}

.content h2 {
  margin-top: 3rem;
}

.content h2:first-child {
  margin-top: 0;
}

/* Values */
.value-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-top: 2rem;
}

.value-item {
  text-align: center;
}

.value-item svg {
  width: 100px;
  height: 100px;
  margin-bottom: 1rem;
}

/* Cards */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-top: 2rem;
}

.method-card {
  border-bottom: 2px solid #e5e7eb;
  padding: 2rem 0;
}

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

/* Tips */
.tip-items {
  margin-top: 2rem;
}

.tip-item {
  display: flex;
  gap: 1.5rem;
  border-bottom: 2px solid #e5e7eb;
  padding: 2rem 0;
}

.tip-number {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.tip-item strong {
  display: block;
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
}

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

.contact-card {
  text-align: center;
  border-bottom: 2px solid #e5e7eb;
  padding: 2rem 0;
}

.contact-icon svg {
  width: 100px;
  height: 100px;
  margin-bottom: 1rem;
}

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

.contact-card p {
  margin-bottom: 0.5rem;
}

.contact-desc {
  margin-top: 1rem;
  color: var(--accent);
  font-size: 0.875rem;
}

.contact-message {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.contact-message p {
  margin-bottom: 1rem;
}

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

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-brand strong {
  display: block;
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--bg);
}

.footer-brand p {
  color: var(--bg);
  opacity: 0.8;
}

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

.footer-links a {
  color: var(--bg);
  opacity: 0.8;
}

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

.footer-contact p {
  color: var(--bg);
  opacity: 0.8;
  margin-bottom: 0.5rem;
}

.copyright {
  text-align: center;
  color: var(--bg);
  opacity: 0.6;
  font-size: 0.875rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1.5rem;
}

/* Document Pages */
.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: 1rem;
}

/* Intro/Benefits Preview */
.intro,
.benefits-preview,
.how-to {
  background: #fff;
}

.intro p,
.benefits-preview p,
.how-to p {
  margin-bottom: 1.5rem;
}